/* ==========================================================================
   YASH SRIVASTAVA - PROFESSIONAL DEVELOPER PORTFOLIO
   Design System: Obsidian Dark + Cyber Neon Green / Cyan Accents
   ========================================================================== */

/* Accessibility Skip Link */
.skip-link {
  position: absolute;
  top: -120px;
  left: 20px;
  background: var(--accent-green);
  color: #05080c;
  font-weight: 700;
  padding: 12px 20px;
  border-radius: var(--radius-sm);
  z-index: 10000;
  transition: top var(--transition-fast);
  text-decoration: none;
  font-family: var(--font-mono);
  box-shadow: 0 0 15px rgba(0, 255, 102, 0.5);
}
.skip-link:focus {
  top: 16px;
  outline: 3px solid #ffffff;
}

/* --------------------------------------------------------------------------
   Design Tokens & Dynamic Theme System
   -------------------------------------------------------------------------- */

:root,
[data-theme="dark"] {
  /* Dark Theme Base (Default) */
  --bg-primary: #070a0e;
  --bg-secondary: #0d1219;
  --bg-surface: #121822;
  --bg-surface-elevated: #182230;
  --bg-card: rgba(18, 26, 38, 0.8);
  --bg-card-hover: rgba(26, 37, 54, 0.92);
  --bg-glass: rgba(14, 20, 29, 0.85);

  /* Typography Colors */
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #8a9bb3;
  --text-highlight: #ffffff;

  /* Borders & Grid */
  --border-subtle: rgba(255, 255, 255, 0.08);
  --grid-line: rgba(255, 255, 255, 0.025);
  --terminal-top-bg: #0d1219;
  --shadow-color: rgba(0, 0, 0, 0.55);
}

/* Light Theme Overrides */
[data-theme="light"] {
  --bg-primary: #f8fafc;
  --bg-secondary: #f1f5f9;
  --bg-surface: #ffffff;
  --bg-surface-elevated: #ffffff;
  --bg-card: #ffffff;
  --bg-card-hover: #f1f5f9;
  --bg-glass: rgba(255, 255, 255, 0.95);

  /* Typography Colors - High Contrast */
  --text-primary: #0f172a;
  --text-secondary: #334155;
  --text-muted: #64748b;
  --text-highlight: #020617;

  /* Borders & Grid */
  --border-subtle: rgba(15, 23, 42, 0.12);
  --border-card: rgba(15, 23, 42, 0.12);
  --border-card-hover: rgba(15, 23, 42, 0.28);
  --grid-line: rgba(15, 23, 42, 0.04);
  --terminal-top-bg: #e2e8f0;
  --shadow-color: rgba(15, 23, 42, 0.08);

  /* High contrast accessible accents on light backgrounds */
  --accent-green: #059669;
  --accent-cyan: #0284c7;
}

/* Curated Accent Palettes */
/* 1. Emerald (Cyber Green - Default) */
:root,
[data-palette="emerald"] {
  --accent: #00ff88;
  --accent-hover: #00cc6a;
  --accent-dim: rgba(0, 255, 136, 0.14);
  --accent-glow: rgba(0, 255, 136, 0.3);
  --accent-border: rgba(0, 255, 136, 0.35);
  --accent-contrast: #070a0e;
  --accent-green: var(--accent);
  --accent-green-dim: var(--accent-dim);
  --accent-green-glow: var(--accent-glow);
  --accent-cyan: #00e5ff;
  --accent-cyan-dim: rgba(0, 229, 255, 0.14);
  --accent-cyan-glow: rgba(0, 229, 255, 0.28);
  --border-card: rgba(0, 255, 136, 0.2);
  --border-card-hover: rgba(0, 229, 255, 0.45);
  --border-focus: var(--accent);
}

/* 2. Electric Blue */
[data-palette="electric-blue"] {
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --accent-dim: rgba(59, 130, 246, 0.15);
  --accent-glow: rgba(59, 130, 246, 0.3);
  --accent-border: rgba(59, 130, 246, 0.4);
  --accent-contrast: #ffffff;
  --accent-green: var(--accent);
  --accent-green-dim: var(--accent-dim);
  --accent-green-glow: var(--accent-glow);
  --accent-cyan: #60a5fa;
  --accent-cyan-dim: rgba(96, 165, 250, 0.15);
  --accent-cyan-glow: rgba(96, 165, 250, 0.28);
  --border-card: rgba(59, 130, 246, 0.25);
  --border-card-hover: rgba(96, 165, 250, 0.5);
  --border-focus: var(--accent);
}

/* 3. Neon Cyan */
[data-palette="cyan"] {
  --accent: #00e5ff;
  --accent-hover: #00b4d8;
  --accent-dim: rgba(0, 229, 255, 0.14);
  --accent-glow: rgba(0, 229, 255, 0.3);
  --accent-border: rgba(0, 229, 255, 0.4);
  --accent-contrast: #070a0e;
  --accent-green: var(--accent);
  --accent-green-dim: var(--accent-dim);
  --accent-green-glow: var(--accent-glow);
  --accent-cyan: #38bdf8;
  --accent-cyan-dim: rgba(56, 189, 248, 0.15);
  --accent-cyan-glow: rgba(56, 189, 248, 0.28);
  --border-card: rgba(0, 229, 255, 0.25);
  --border-card-hover: rgba(56, 189, 248, 0.5);
  --border-focus: var(--accent);
}

/* 4. Royal Violet */
[data-palette="violet"] {
  --accent: #a855f7;
  --accent-hover: #9333ea;
  --accent-dim: rgba(168, 85, 247, 0.15);
  --accent-glow: rgba(168, 85, 247, 0.32);
  --accent-border: rgba(168, 85, 247, 0.4);
  --accent-contrast: #ffffff;
  --accent-green: var(--accent);
  --accent-green-dim: var(--accent-dim);
  --accent-green-glow: var(--accent-glow);
  --accent-cyan: #c084fc;
  --accent-cyan-dim: rgba(192, 132, 252, 0.15);
  --accent-cyan-glow: rgba(192, 132, 252, 0.28);
  --border-card: rgba(168, 85, 247, 0.25);
  --border-card-hover: rgba(192, 132, 252, 0.5);
  --border-focus: var(--accent);
}

/* 5. Cyber Amber */
[data-palette="amber"] {
  --accent: #f59e0b;
  --accent-hover: #d97706;
  --accent-dim: rgba(245, 158, 11, 0.15);
  --accent-glow: rgba(245, 158, 11, 0.3);
  --accent-border: rgba(245, 158, 11, 0.4);
  --accent-contrast: #070a0e;
  --accent-green: var(--accent);
  --accent-green-dim: var(--accent-dim);
  --accent-green-glow: var(--accent-glow);
  --accent-cyan: #fbbf24;
  --accent-cyan-dim: rgba(251, 191, 36, 0.15);
  --accent-cyan-glow: rgba(251, 191, 36, 0.28);
  --border-card: rgba(245, 158, 11, 0.25);
  --border-card-hover: rgba(251, 191, 36, 0.5);
  --border-focus: var(--accent);
}

/* 6. Monochrome / Steel */
[data-palette="monochrome"] {
  --accent: #94a3b8;
  --accent-hover: #cbd5e1;
  --accent-dim: rgba(148, 163, 184, 0.16);
  --accent-glow: rgba(148, 163, 184, 0.28);
  --accent-border: rgba(148, 163, 184, 0.35);
  --accent-contrast: #070a0e;
  --accent-green: var(--accent);
  --accent-green-dim: var(--accent-dim);
  --accent-green-glow: var(--accent-glow);
  --accent-cyan: #e2e8f0;
  --accent-cyan-dim: rgba(226, 232, 240, 0.14);
  --accent-cyan-glow: rgba(226, 232, 240, 0.28);
  --border-card: rgba(148, 163, 184, 0.25);
  --border-card-hover: rgba(226, 232, 240, 0.45);
  --border-focus: var(--accent);
}

/* Light Theme Accessible Palette Tokens (WCAG AA/AAA Compliant) */
[data-theme="light"],
[data-theme="light"][data-palette="emerald"] {
  --accent: #059669;
  --accent-hover: #047857;
  --accent-dim: rgba(5, 150, 105, 0.12);
  --accent-glow: rgba(5, 150, 105, 0.25);
  --accent-border: rgba(5, 150, 105, 0.35);
  --accent-contrast: #ffffff;
  --accent-green: #059669;
  --accent-green-dim: rgba(5, 150, 105, 0.12);
  --accent-green-glow: rgba(5, 150, 105, 0.25);
  --accent-cyan: #0284c7;
  --accent-cyan-dim: rgba(2, 132, 199, 0.12);
  --accent-cyan-glow: rgba(2, 132, 199, 0.25);
  --border-card: rgba(15, 23, 42, 0.12);
  --border-card-hover: rgba(2, 132, 199, 0.35);
  --border-focus: #059669;
}

[data-theme="light"][data-palette="electric-blue"] {
  --accent: #1d4ed8;
  --accent-hover: #1e40af;
  --accent-dim: rgba(29, 78, 216, 0.12);
  --accent-glow: rgba(29, 78, 216, 0.25);
  --accent-border: rgba(29, 78, 216, 0.35);
  --accent-contrast: #ffffff;
  --accent-green: #1d4ed8;
  --accent-green-dim: rgba(29, 78, 216, 0.12);
  --accent-green-glow: rgba(29, 78, 216, 0.25);
  --accent-cyan: #0284c7;
  --accent-cyan-dim: rgba(2, 132, 199, 0.12);
  --accent-cyan-glow: rgba(2, 132, 199, 0.25);
  --border-card: rgba(15, 23, 42, 0.12);
  --border-card-hover: rgba(29, 78, 216, 0.35);
  --border-focus: #1d4ed8;
}

[data-theme="light"][data-palette="cyan"] {
  --accent: #0284c7;
  --accent-hover: #0369a1;
  --accent-dim: rgba(2, 132, 199, 0.12);
  --accent-glow: rgba(2, 132, 199, 0.25);
  --accent-border: rgba(2, 132, 199, 0.35);
  --accent-contrast: #ffffff;
  --accent-green: #059669;
  --accent-green-dim: rgba(5, 150, 105, 0.12);
  --accent-green-glow: rgba(5, 150, 105, 0.25);
  --accent-cyan: #0284c7;
  --accent-cyan-dim: rgba(2, 132, 199, 0.12);
  --accent-cyan-glow: rgba(2, 132, 199, 0.25);
  --border-card: rgba(15, 23, 42, 0.12);
  --border-card-hover: rgba(2, 132, 199, 0.35);
  --border-focus: #0284c7;
}

[data-theme="light"][data-palette="violet"] {
  --accent: #7c3aed;
  --accent-hover: #6d28d9;
  --accent-dim: rgba(124, 58, 237, 0.12);
  --accent-glow: rgba(124, 58, 237, 0.25);
  --accent-border: rgba(124, 58, 237, 0.35);
  --accent-contrast: #ffffff;
  --accent-green: #7c3aed;
  --accent-green-dim: rgba(124, 58, 237, 0.12);
  --accent-green-glow: rgba(124, 58, 237, 0.25);
  --accent-cyan: #0284c7;
  --accent-cyan-dim: rgba(2, 132, 199, 0.12);
  --accent-cyan-glow: rgba(2, 132, 199, 0.25);
  --border-card: rgba(15, 23, 42, 0.12);
  --border-card-hover: rgba(124, 58, 237, 0.35);
  --border-focus: #7c3aed;
}

[data-theme="light"][data-palette="amber"] {
  --accent: #b45309;
  --accent-hover: #92400e;
  --accent-dim: rgba(180, 83, 9, 0.12);
  --accent-glow: rgba(180, 83, 9, 0.25);
  --accent-border: rgba(180, 83, 9, 0.35);
  --accent-contrast: #ffffff;
  --accent-green: #059669;
  --accent-green-dim: rgba(5, 150, 105, 0.12);
  --accent-green-glow: rgba(5, 150, 105, 0.25);
  --accent-cyan: #0284c7;
  --accent-cyan-dim: rgba(2, 132, 199, 0.12);
  --accent-cyan-glow: rgba(2, 132, 199, 0.25);
  --border-card: rgba(15, 23, 42, 0.12);
  --border-card-hover: rgba(180, 83, 9, 0.35);
  --border-focus: #b45309;
}

[data-theme="light"][data-palette="monochrome"] {
  --accent: #0f172a;
  --accent-hover: #1e293b;
  --accent-dim: rgba(15, 23, 42, 0.08);
  --accent-glow: rgba(15, 23, 42, 0.2);
  --accent-border: rgba(15, 23, 42, 0.3);
  --accent-contrast: #ffffff;
  --accent-green: #0f172a;
  --accent-green-dim: rgba(15, 23, 42, 0.08);
  --accent-green-glow: rgba(15, 23, 42, 0.2);
  --accent-cyan: #334155;
  --accent-cyan-dim: rgba(51, 65, 85, 0.08);
  --accent-cyan-glow: rgba(51, 65, 85, 0.2);
  --border-card: rgba(15, 23, 42, 0.12);
  --border-card-hover: rgba(15, 23, 42, 0.35);
  --border-focus: #0f172a;
}

/* Common System Tokens */
:root {
  --accent-amber: #f59e0b;
  --accent-purple: #8b5cf6;

  /* Fonts */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  --font-mono: 'JetBrains Mono', 'Cascadia Code', 'Courier New', monospace;

  /* Layout & Transitions */
  --container-max: 1200px;
  --nav-height: 72px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;
  --transition-fast: 0.18s ease;
  --transition-normal: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: 0.5s cubic-bezier(0.16, 1, 0.3, 1);

  /* Shadows */
  --shadow-sm: 0 2px 8px var(--shadow-color);
  --shadow-md: 0 8px 24px var(--shadow-color);
  --shadow-glow-green: 0 0 25px var(--accent-glow);
  --shadow-glow-cyan: 0 0 25px var(--accent-cyan-glow);
}

/* --------------------------------------------------------------------------
   Reset & Base Styles
   -------------------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-height) + 24px);
  font-size: 16px;
  color-scheme: dark;
  overflow-x: hidden;
  max-width: 100vw;
  width: 100%;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-sans);
  line-height: 1.65;
  letter-spacing: -0.01em;
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
  max-width: 100vw;
  width: 100%;
}

/* Subtle Technical Workstation Grid Pattern */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    linear-gradient(to right, rgba(0, 229, 255, 0.024) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(0, 229, 255, 0.024) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  z-index: -1;
  mask-image: radial-gradient(ellipse 90% 80% at 50% 45%, #000 50%, transparent 95%);
  -webkit-mask-image: radial-gradient(ellipse 90% 80% at 50% 45%, #000 50%, transparent 95%);
}

/* Ambient Dark Workstation Gradient Overlay */
body::after {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: 
    radial-gradient(ellipse 80% 50% at 50% -10%, rgba(0, 229, 255, 0.055) 0%, transparent 60%),
    radial-gradient(ellipse 60% 45% at 85% 85%, rgba(0, 255, 102, 0.025) 0%, transparent 55%),
    radial-gradient(ellipse 50% 40% at 15% 50%, rgba(14, 28, 48, 0.45) 0%, transparent 65%);
  pointer-events: none;
  z-index: -1;
}

/* Canvas Matrix Layer (Optional Easter Egg, default OFF) */
#matrixCanvas {
  position: fixed;
  inset: 0;
  width: 100%;
  max-width: 100vw;
  height: 100%;
  height: 100dvh;
  z-index: -2;
  opacity: 0;
  pointer-events: none;
  /* Use will-change to prevent flicker from compositing layer changes */
  will-change: opacity;
  /* GPU-composited layer — prevents repaint fights with body background */
  transform: translateZ(0);
  -webkit-transform: translateZ(0);
  transition: opacity var(--transition-normal);
}

#matrixCanvas.active {
  opacity: 0.45;
}

/* Light theme: use multiply blend to avoid dark-overlay flicker */
[data-theme="light"] #matrixCanvas.active {
  opacity: 0.18;
  mix-blend-mode: multiply;
}

/* Typography Helpers */
h1, h2, h3, h4, h5, h6 {
  color: var(--text-highlight);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.02em;
}

p {
  color: var(--text-secondary);
}

a {
  color: var(--accent-green);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--accent-cyan);
}

code, pre, .font-mono {
  font-family: var(--font-mono);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

/* Section Header Utility */
.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 56px;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent-green);
  background: var(--accent-green-dim);
  border: 1px solid var(--accent-border);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  margin-bottom: 16px;
}

[data-theme="light"] .section-tag {
  color: #047857;
  background: rgba(5, 150, 105, 0.09);
  border-color: rgba(5, 150, 105, 0.3);
}

[data-theme="light"] .section-tag::before {
  color: #0369a1;
}

.section-tag::before {
  content: '>';
  color: var(--accent-cyan);
  font-weight: 700;
}

.section-title {
  font-size: clamp(2rem, 3.5vw, 2.75rem);
  margin-bottom: 16px;
}

.section-title .text-gradient {
  background: linear-gradient(135deg, var(--text-highlight) 30%, var(--accent-green) 75%, var(--accent-cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

[data-theme="light"] .section-title .text-gradient {
  background: linear-gradient(135deg, #0f172a 0%, #0369a1 60%, #059669 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 24px;
  font-family: var(--font-mono);
  font-size: 0.92rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-normal);
  border: 1px solid transparent;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, #00ff66 0%, #00d27a 100%);
  color: #070a0e;
  box-shadow: 0 4px 16px rgba(0, 255, 102, 0.25);
  font-weight: 700;
}

.btn-primary:hover {
  background: linear-gradient(135deg, #24ff7e 0%, #00ff88 100%);
  color: #04080b;
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(0, 255, 102, 0.4);
}

.btn-secondary {
  background: var(--bg-surface-elevated);
  color: var(--text-primary);
  border-color: var(--border-subtle);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  transform: translateY(-2px);
}

.btn-outline-green {
  background: transparent;
  color: var(--accent-green);
  border-color: rgba(0, 255, 102, 0.45);
}

.btn-outline-green:hover {
  background: var(--accent-green-dim);
  border-color: var(--accent-green);
  color: var(--text-highlight);
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow-green);
}

.btn-outline-cyan {
  background: transparent;
  color: var(--accent-cyan);
  border-color: var(--accent-cyan);
}

.btn-outline-cyan:hover {
  background: var(--accent-cyan-dim);
  border-color: var(--accent-cyan);
  color: var(--text-highlight);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px var(--accent-cyan-glow);
}

[data-theme="light"] .btn-primary {
  background: linear-gradient(135deg, #059669 0%, #047857 100%);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(5, 150, 105, 0.25);
}

[data-theme="light"] .btn-primary:hover {
  background: linear-gradient(135deg, #047857 0%, #065f46 100%);
  color: #ffffff;
  box-shadow: 0 6px 20px rgba(5, 150, 105, 0.35);
}

[data-theme="light"] .btn-secondary {
  background: #ffffff;
  color: #0f172a;
  border-color: rgba(15, 23, 42, 0.2);
}

[data-theme="light"] .btn-secondary:hover {
  background: #f1f5f9;
  border-color: #0284c7;
  color: #0369a1;
}

[data-theme="light"] .btn-outline-cyan {
  color: #0284c7;
  border-color: #0284c7;
}

[data-theme="light"] .btn-outline-cyan:hover {
  background: rgba(2, 132, 199, 0.1);
  border-color: #0369a1;
  color: #0c4a6e;
}

[data-theme="light"] .btn-outline-green {
  color: #059669;
  border-color: #059669;
}

[data-theme="light"] .btn-outline-green:hover {
  background: rgba(5, 150, 105, 0.1);
  border-color: #047857;
  color: #065f46;
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.82rem;
}

/* --------------------------------------------------------------------------
   Sticky Navigation Bar
   -------------------------------------------------------------------------- */
.navbar {
  position: sticky;
  top: 0;
  width: 100%;
  height: var(--nav-height);
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  z-index: 1000;
  display: flex;
  align-items: center;
  transition: all var(--transition-normal);
}

.navbar .container {
  max-width: 1440px;
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  min-width: 0;
}

.nav-brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--text-highlight);
  letter-spacing: -0.01em;
  flex-shrink: 0;
  white-space: nowrap;
}

.brand-prompt {
  color: var(--accent-green);
  flex-shrink: 0;
}

.brand-name {
  white-space: nowrap;
}

.nav-brand:hover .brand-name {
  color: var(--accent-cyan);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 12px;
  list-style: none;
}

.nav-link {
  font-size: 0.86rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
  position: relative;
  padding: 6px 4px;
  white-space: nowrap;
  min-height: 38px;
  display: inline-flex;
  align-items: center;
}

.nav-link:hover, .nav-link.active {
  color: var(--accent-green);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--accent-green);
  border-radius: var(--radius-full);
  box-shadow: 0 0 8px var(--accent-green);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-left: auto;
  flex-shrink: 0;
}

/* --------------------------------------------------------------------------
   Three Global User Controls (Theme, Palette, Matrix FX)
   -------------------------------------------------------------------------- */
.nav-controls {
  display: flex;
  align-items: center;
  gap: 8px;
}

.ctrl-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  padding: 8px 12px;
  min-height: 40px;
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.ctrl-btn:hover {
  border-color: var(--accent);
  color: var(--text-primary);
  background: var(--bg-card-hover);
}

.ctrl-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* Theme Toggle (Dark / Light) */
.theme-toggle .ctrl-icon {
  font-size: 1rem;
  line-height: 1;
}

[data-theme="dark"] .theme-toggle .theme-icon-light {
  display: none;
}
[data-theme="dark"] .theme-toggle .theme-icon-dark {
  display: inline-block;
  color: var(--accent-cyan);
}

[data-theme="light"] .theme-toggle .theme-icon-dark {
  display: none;
}
[data-theme="light"] .theme-toggle .theme-icon-light {
  display: inline-block;
  color: #f59e0b;
}

/* Palette Selector Dropdown */
.palette-dropdown {
  position: relative;
}

.palette-color-preview {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 6px var(--accent);
  display: inline-block;
  flex-shrink: 0;
  transition: all var(--transition-fast);
}

.palette-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  width: 190px;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 6px;
  box-shadow: var(--shadow-md);
  display: none;
  flex-direction: column;
  gap: 2px;
  z-index: 1050;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.palette-menu.open {
  display: flex;
  animation: fadeInDown 0.18s ease-out;
}

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.palette-option {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 500;
  cursor: pointer;
  width: 100%;
  text-align: left;
  transition: all var(--transition-fast);
}

.palette-option:hover,
.palette-option:focus-visible {
  background: var(--accent-dim);
  color: var(--text-primary);
  outline: none;
}

.palette-option.active {
  color: var(--text-primary);
  background: var(--accent-dim);
  font-weight: 700;
}

.palette-option .swatch {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  flex-shrink: 0;
}

.swatch-emerald { background: #00ff88; box-shadow: 0 0 6px rgba(0, 255, 136, 0.4); }
.swatch-blue    { background: #3b82f6; box-shadow: 0 0 6px rgba(59, 130, 246, 0.4); }
.swatch-cyan    { background: #00e5ff; box-shadow: 0 0 6px rgba(0, 229, 255, 0.4); }
.swatch-violet  { background: #a855f7; box-shadow: 0 0 6px rgba(168, 85, 247, 0.4); }
.swatch-amber   { background: #f59e0b; box-shadow: 0 0 6px rgba(245, 158, 11, 0.4); }
.swatch-mono    { background: #94a3b8; box-shadow: 0 0 6px rgba(148, 163, 184, 0.4); }

/* Matrix FX Toggle */
.matrix-toggle {
  padding: 8px 12px;
}

.matrix-status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #64748b;
  display: inline-block;
  transition: background var(--transition-fast);
  flex-shrink: 0;
}

.matrix-status-dot.active {
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
}

/* --------------------------------------------------------------------------
   Terminal Intro Modal (First-Visit & Replay)
   -------------------------------------------------------------------------- */
.terminal-intro-overlay {
  position: fixed;
  inset: 0;
  width: 100%;
  max-width: 100vw;
  height: 100%;
  height: 100dvh;
  background: rgba(4, 7, 11, 0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 99999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 1;
  pointer-events: auto;
  transition: opacity 0.25s ease-out;
  box-sizing: border-box;
  overflow-y: auto;
}

.terminal-intro-overlay.dismissed {
  opacity: 0 !important;
  pointer-events: none !important;
  display: none !important;
}

.terminal-intro-overlay.visible {
  opacity: 1 !important;
  pointer-events: auto !important;
  display: flex !important;
}

.terminal-intro-window {
  width: 100%;
  max-width: 580px;
  max-height: calc(100dvh - 32px);
  background: #090e17;
  border: 1px solid var(--accent-border);
  border-radius: var(--radius-md);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.7), 0 0 30px var(--accent-glow);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  animation: terminalPop 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  box-sizing: border-box;
}

@keyframes terminalPop {
  from {
    transform: scale(0.95) translateY(12px);
    opacity: 0;
  }
  to {
    transform: scale(1) translateY(0);
    opacity: 1;
  }
}

.terminal-window-header {
  background: #0d1420;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding: 10px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.terminal-dots {
  display: flex;
  gap: 7px;
}

.terminal-dots .dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  display: inline-block;
}

.dot-red    { background: #ef4444; }
.dot-yellow { background: #f59e0b; }
.dot-green  { background: #10b981; }

.terminal-window-title {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-secondary);
}

.terminal-replay-hint {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent);
}

.terminal-window-body {
  padding: 24px;
  font-family: var(--font-mono);
  color: #f8fafc;
  overflow-y: auto;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
}

.terminal-prompt-line {
  font-size: 0.92rem;
  margin-bottom: 16px;
}

.terminal-user {
  color: var(--accent);
  font-weight: 600;
}

.terminal-path {
  color: var(--accent-cyan);
}

.terminal-command {
  color: var(--text-highlight);
  font-weight: 700;
}

.terminal-output-area {
  margin-bottom: 24px;
  min-height: 110px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.term-line {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.5;
  transition: opacity 0.2s ease-in;
}

.term-highlight {
  color: var(--text-highlight);
  font-weight: 700;
}

.term-accent {
  color: var(--accent);
  font-weight: 600;
}

.term-line.term-success {
  color: var(--accent);
  font-weight: 700;
  margin-top: 6px;
}

.terminal-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
  padding-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  flex-wrap: wrap;
}

/* Reduced Motion Override for Terminal */
@media (prefers-reduced-motion: reduce) {
  .terminal-intro-window {
    animation: none;
  }
  .term-line {
    opacity: 1 !important;
    transition: none;
  }
}

/* Hamburger Menu Button */
.menu-toggle {
  display: none;
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  padding: 8px;
  min-width: 44px;
  min-height: 44px;
  color: var(--text-primary);
  align-items: center;
  justify-content: center;
}

.menu-toggle:focus-visible {
  border-color: var(--accent-green);
}

.menu-toggle svg {
  display: block;
  width: 24px;
  height: 24px;
}

/* --------------------------------------------------------------------------
   Hero Section
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  min-height: calc(100vh - var(--nav-height));
  min-height: calc(100dvh - var(--nav-height));
  display: flex;
  align-items: center;
  padding: 64px 0 96px;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.25fr 0.9fr;
  gap: 56px;
  align-items: center;
}

.hero-status-pill {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--accent-green-dim);
  border: 1px solid var(--accent-border);
  padding: 6px 16px;
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--accent-green);
  margin-bottom: 24px;
}

[data-theme="light"] .hero-status-pill {
  background: rgba(5, 150, 105, 0.08);
  border-color: rgba(5, 150, 105, 0.35);
  color: #047857;
  font-weight: 600;
}

[data-theme="light"] .hero-status-pill .pulse-indicator {
  background: #059669;
  box-shadow: 0 0 10px rgba(5, 150, 105, 0.5);
}

.pulse-indicator {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-green);
  box-shadow: 0 0 10px var(--accent-green);
  animation: pulse-ring 2s infinite;
}

@keyframes pulse-ring {
  0% { transform: scale(0.9); box-shadow: 0 0 0 0 rgba(0, 255, 102, 0.7); }
  70% { transform: scale(1.1); box-shadow: 0 0 0 8px rgba(0, 255, 102, 0); }
  100% { transform: scale(0.9); box-shadow: 0 0 0 0 rgba(0, 255, 102, 0); }
}

.hero-name {
  font-size: clamp(2.85rem, 5.5vw, 4.5rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  line-height: 1.06;
  margin-bottom: 12px;
  text-transform: uppercase;
}

.hero-name .glow-text {
  color: var(--text-highlight);
  text-shadow: none;
}

.hero-headline {
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  font-weight: 600;
  color: var(--accent-cyan);
  margin-top: 4px;
  margin-bottom: 22px;
  font-family: var(--font-mono);
  display: flex;
  flex-wrap: wrap;
  gap: 8px 12px;
  align-items: center;
  line-height: 1.5;
}

.hero-headline .headline-item {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  white-space: nowrap;
}

.hero-headline .divider {
  color: var(--text-muted);
  font-weight: 300;
  opacity: 0.7;
  user-select: none;
}

[data-theme="light"] .hero-headline {
  color: #0369a1;
  font-weight: 650;
}

[data-theme="light"] .hero-headline .divider {
  color: #64748b;
  opacity: 0.85;
}

.hero-description {
  font-size: 1.15rem;
  line-height: 1.7;
  color: var(--text-secondary);
  max-width: 600px;
  margin-bottom: 30px;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 40px;
}

/* Technical Status Area Badges */
.tech-status-wrapper {
  border-top: 1px solid var(--border-subtle);
  padding-top: 24px;
}

.tech-status-label {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.tech-status-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tech-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  padding: 5px 12px;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.tech-badge:hover {
  border-color: var(--accent-green);
  color: var(--accent-green);
  background: var(--accent-green-dim);
}

.badge-glyph {
  font-family: var(--font-mono);
  color: var(--accent-cyan);
  font-size: 0.85em;
  font-weight: 600;
  opacity: 0.85;
}

/* Hero Terminal Visual Card */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
}

.terminal-card {
  width: 100%;
  max-width: 480px;
  background: rgba(14, 20, 29, 0.85);
  backdrop-filter: blur(16px);
  border: 1px solid rgba(0, 255, 102, 0.25);
  border-radius: var(--radius-lg);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.6), 0 0 30px rgba(0, 255, 102, 0.12);
  overflow: hidden;
  position: relative;
}

.terminal-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-green), var(--accent-cyan));
}

.terminal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 18px;
  background: rgba(8, 12, 16, 0.9);
  border-bottom: 1px solid var(--border-subtle);
}

.terminal-dots {
  display: flex;
  gap: 8px;
}

.terminal-dots span {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  display: block;
}

.terminal-dots .dot-red { background: #ef4444; }
.terminal-dots .dot-yellow { background: #f59e0b; }
.terminal-dots .dot-green { background: #10b981; }

.terminal-title {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--text-muted);
}

.terminal-badge {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent-green);
  background: var(--accent-green-dim);
  padding: 2px 8px;
  border-radius: var(--radius-sm);
}

.terminal-image-container {
  padding: 20px;
  display: flex;
  justify-content: center;
  background: radial-gradient(circle at center, rgba(0, 255, 102, 0.08) 0%, transparent 70%);
}

.terminal-image-container img {
  max-height: 240px;
  object-fit: contain;
  filter: drop-shadow(0 8px 20px rgba(0, 255, 102, 0.25));
  transition: transform var(--transition-normal);
}

.terminal-image-container img:hover {
  transform: scale(1.03);
}

.terminal-body {
  padding: 16px 20px 20px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  background: rgba(10, 14, 20, 0.95);
  border-top: 1px solid var(--border-subtle);
}

.terminal-row {
  margin-bottom: 6px;
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.terminal-prompt {
  color: var(--accent-green);
  user-select: none;
}

.terminal-cmd {
  color: #ffffff;
}

.terminal-output {
  color: var(--text-secondary);
  padding-left: 18px;
}

.terminal-output .val-cyan { color: var(--accent-cyan); font-weight: 600; }
.terminal-output .val-green { color: var(--accent-green); font-weight: 600; }

/* --------------------------------------------------------------------------
   "What I Build" Capabilities Section
   -------------------------------------------------------------------------- */
.capabilities {
  padding: 80px 0;
  position: relative;
}

.capabilities-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
}

.capability-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.capability-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: transparent;
  transition: background var(--transition-normal);
}

.capability-card:hover {
  transform: translateY(-4px);
  background: var(--bg-card-hover);
  border-color: rgba(0, 255, 102, 0.35);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.45);
}

.capability-card:hover::before {
  background: linear-gradient(90deg, var(--accent-green), var(--accent-cyan));
}

.capability-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--accent-green-dim);
  border: 1px solid rgba(0, 255, 102, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-green);
  margin-bottom: 20px;
  font-size: 1.35rem;
}

.capability-title {
  font-size: 1.2rem;
  margin-bottom: 12px;
}

.capability-desc {
  font-size: 0.94rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
   About Me Section
   -------------------------------------------------------------------------- */
.about {
  padding: 100px 0;
  background: transparent;
}

.about-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 56px;
  align-items: start;
}

.about-content p {
  margin-bottom: 20px;
  font-size: 1.05rem;
  line-height: 1.75;
}

.about-highlight-box {
  background: rgba(0, 255, 102, 0.05);
  border-left: 3px solid var(--accent-green);
  padding: 18px 22px;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin: 28px 0;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--text-primary);
}

.about-cards-sidebar {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.about-spec-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 24px;
  transition: all var(--transition-fast);
}

.about-spec-card:hover {
  border-color: rgba(0, 229, 255, 0.3);
}

.spec-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.spec-icon {
  color: var(--accent-cyan);
  font-size: 1.25rem;
}

.spec-title {
  font-size: 1.05rem;
  font-family: var(--font-mono);
}

.spec-text {
  font-size: 0.92rem;
  color: var(--text-secondary);
}

/* Quick Facts Badge Grid */
.quick-facts {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  margin-top: 24px;
}

.quick-fact-item {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  padding: 12px 16px;
  border-radius: var(--radius-sm);
}

.quick-fact-label {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.quick-fact-value {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-top: 4px;
}

/* --------------------------------------------------------------------------
   Technical Skills Section
   -------------------------------------------------------------------------- */
.skills {
  padding: 100px 0;
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 28px;
}

.skill-category-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.skill-category-card:hover {
  border-color: rgba(0, 255, 102, 0.3);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.skill-category-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-subtle);
}

.skill-category-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: var(--bg-surface-elevated);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-cyan);
  font-size: 1.25rem;
}

.skill-category-title {
  font-size: 1.15rem;
  font-family: var(--font-mono);
}

.skill-items-container {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.skill-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 0.88rem;
  color: var(--text-primary);
  font-family: var(--font-mono);
  transition: all var(--transition-fast);
}

.skill-pill:hover {
  background: var(--accent-green-dim);
  border-color: var(--accent-green);
  color: var(--accent-green);
  transform: translateY(-2px);
}

/* --------------------------------------------------------------------------
   Featured Projects Section
   -------------------------------------------------------------------------- */
.projects {
  padding: 100px 0;
  position: relative;
}

.projects-filter-bar,
.project-filters {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 48px;
}

.filter-btn {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.22);
  color: #e2e8f0;
  padding: 8px 18px;
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  letter-spacing: 0.02em;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: all var(--transition-fast);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.25);
}

.filter-btn:hover {
  background: rgba(255, 255, 255, 0.16);
  color: var(--text-highlight);
  border-color: rgba(0, 255, 102, 0.55);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.35), 0 0 10px rgba(0, 255, 102, 0.2);
  transform: translateY(-1px);
}

.filter-btn.active {
  background: rgba(0, 255, 102, 0.18);
  border: 1.5px solid var(--accent-green);
  color: var(--accent-green);
  font-weight: 600;
  box-shadow: 0 0 16px rgba(0, 255, 102, 0.35), inset 0 0 8px rgba(0, 255, 102, 0.12);
  transform: translateY(-1px);
}

.filter-btn.active:hover {
  background: rgba(0, 255, 102, 0.25);
  border-color: var(--accent-green);
  color: var(--accent-green);
  box-shadow: 0 0 20px rgba(0, 255, 102, 0.5), inset 0 0 12px rgba(0, 255, 102, 0.18);
}

/* Light Mode Filter Buttons */
[data-theme="light"] .filter-btn {
  background: #ffffff;
  border: 1px solid rgba(15, 23, 42, 0.18);
  color: #334155;
  box-shadow: 0 1px 4px rgba(15, 23, 42, 0.08);
}

[data-theme="light"] .filter-btn:hover {
  background: #f1f5f9;
  color: #0f172a;
  border-color: #0284c7;
  box-shadow: 0 2px 8px rgba(2, 132, 199, 0.15);
}

[data-theme="light"] .filter-btn.active {
  background: rgba(5, 150, 105, 0.09);
  border: 1.5px solid #059669;
  color: #047857;
  font-weight: 600;
  box-shadow: 0 0 0 2px rgba(5, 150, 105, 0.12);
}

[data-theme="light"] .filter-btn.active:hover {
  background: rgba(5, 150, 105, 0.14);
  border-color: #047857;
  color: #065f46;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
  gap: 32px;
}

/* Project Card */
.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
  position: relative;
}

.project-card:hover {
  transform: translateY(-6px);
  border-color: rgba(0, 255, 102, 0.4);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.6), var(--shadow-glow-green);
}

.project-card-header {
  padding: 24px 28px 12px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  width: 100%;
}

.project-card-status-wrapper {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 12px;
  width: 100%;
}

.project-meta-category {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent-cyan);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 12px;
  line-height: 1.5;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  display: block;
  width: 100%;
}

.project-card-title {
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.35;
  color: var(--text-highlight);
  margin-bottom: 4px;
  letter-spacing: -0.01em;
  width: 100%;
}

.project-status-badge {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  white-space: nowrap;
  letter-spacing: 0.04em;
  display: inline-flex;
  align-items: center;
}

.status-active {
  background: rgba(16, 185, 129, 0.15);
  border: 1px solid rgba(16, 185, 129, 0.35);
  color: #10b981;
}

.status-milestone {
  background: rgba(0, 229, 255, 0.15);
  border: 1px solid rgba(0, 229, 255, 0.35);
  color: #00e5ff;
}

.status-completed {
  background: rgba(0, 255, 102, 0.15);
  border: 1px solid rgba(0, 255, 102, 0.35);
  color: #00ff66;
}

.status-concept {
  background: rgba(245, 158, 11, 0.15);
  border: 1px solid rgba(245, 158, 11, 0.35);
  color: #f59e0b;
}

.project-card-body {
  padding: 0 28px 24px;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.project-card-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 20px;
  flex-grow: 1;
  text-align: justify;
  text-justify: inter-word;
}

.project-tags-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 24px;
}

.project-tag-pill {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
}

.project-card-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-top: 16px;
  border-top: 1px solid var(--border-subtle);
}

/* Light Mode Project Cards */
[data-theme="light"] .project-card {
  background: #ffffff;
  border-color: rgba(15, 23, 42, 0.1);
  box-shadow: 0 2px 12px rgba(15, 23, 42, 0.06);
}

[data-theme="light"] .project-card:hover {
  border-color: #0284c7;
  box-shadow: 0 8px 28px rgba(15, 23, 42, 0.12), 0 0 0 1px rgba(2, 132, 199, 0.2);
}

[data-theme="light"] .project-card-title {
  color: #0f172a;
}

[data-theme="light"] .project-meta-category {
  color: #0369a1;
}

[data-theme="light"] .status-milestone {
  background: rgba(2, 132, 199, 0.1);
  border-color: rgba(2, 132, 199, 0.3);
  color: #0369a1;
}

[data-theme="light"] .status-completed {
  background: rgba(5, 150, 105, 0.1);
  border-color: rgba(5, 150, 105, 0.3);
  color: #047857;
}

[data-theme="light"] .status-active {
  background: rgba(5, 150, 105, 0.1);
  border-color: rgba(16, 185, 129, 0.35);
  color: #047857;
}

[data-theme="light"] .status-concept {
  background: rgba(180, 83, 9, 0.08);
  border-color: rgba(180, 83, 9, 0.28);
  color: #92400e;
}

[data-theme="light"] .project-tag-pill {
  background: #f8fafc;
  border-color: rgba(15, 23, 42, 0.12);
  color: #475569;
}

/* --------------------------------------------------------------------------
   Architecture Visualization Section
   -------------------------------------------------------------------------- */
.architecture-section {
  padding: 100px 0;
  background: rgba(13, 18, 25, 0.25);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.architecture-tabs,
.arch-tabs-list {
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
  gap: 16px;
  margin: 0 auto 36px auto;
  flex-wrap: wrap;
  width: 100%;
}

.arch-tab-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  padding: 10px 22px;
  border-radius: var(--radius-md);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.arch-tab-btn:hover {
  border-color: var(--accent);
  color: var(--text-primary);
}

.arch-tab-btn.active {
  background: var(--bg-surface-elevated);
  border-color: var(--accent);
  color: var(--accent);
  box-shadow: 0 0 16px var(--accent-glow);
}

/* Light Mode Architecture Tabs */
[data-theme="light"] .arch-tab-btn {
  background: #ffffff;
  border-color: rgba(15, 23, 42, 0.16);
  color: #334155;
  box-shadow: 0 1px 4px rgba(15, 23, 42, 0.06);
}

[data-theme="light"] .arch-tab-btn:hover {
  border-color: #0284c7;
  color: #0369a1;
  background: #f8fafc;
}

[data-theme="light"] .arch-tab-btn.active {
  background: #ffffff;
  border-color: #059669;
  color: #047857;
  box-shadow: 0 0 0 2px rgba(5, 150, 105, 0.12), 0 2px 8px rgba(15, 23, 42, 0.08);
  font-weight: 600;
}

.arch-showcase {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow-md);
}

.arch-card {
  width: 100%;
}

.arch-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 24px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--border-subtle);
}

.arch-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-highlight);
  margin-top: 4px;
  letter-spacing: -0.01em;
}

.arch-subtitle {
  font-family: var(--font-mono);
  font-size: 0.88rem;
  color: var(--text-secondary);
  margin-top: 6px;
  line-height: 1.5;
}

.arch-steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
  margin-top: 24px;
}

.arch-flow-pipeline {
  display: flex;
  flex-direction: column;
  gap: 16px;
  position: relative;
}

.arch-step-node {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 20px;
  align-items: center;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 18px 24px;
  transition: all var(--transition-fast);
  position: relative;
}

.arch-step-node:hover {
  border-color: var(--accent-green);
  transform: translateX(6px);
}

.arch-step-num {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--accent-green-dim);
  border: 1px solid var(--accent-green);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--accent-green);
  font-size: 1.1rem;
}

.arch-step-title {
  font-size: 1.05rem;
  margin-bottom: 4px;
  color: var(--text-highlight);
}

.arch-step-desc {
  font-size: 0.92rem;
  color: var(--text-secondary);
}

/* --------------------------------------------------------------------------
   Embedded & Hardware Engineering Section
   -------------------------------------------------------------------------- */
.embedded-hardware {
  padding: 100px 0;
}

.hardware-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px;
}

.hardware-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
}

.hardware-card:hover {
  border-color: rgba(0, 229, 255, 0.4);
  box-shadow: var(--shadow-md);
}

.hardware-card-title {
  font-size: 1.35rem;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.hardware-card-title svg {
  color: var(--accent-cyan);
}

.hardware-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.hardware-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.hardware-list li strong {
  color: var(--text-primary);
  font-family: var(--font-mono);
}

.hardware-list li::before {
  content: '▸';
  color: var(--accent-green);
  font-weight: 700;
}

/* --------------------------------------------------------------------------
   Achievements & Milestones Timeline
   -------------------------------------------------------------------------- */
.achievements {
  padding: 100px 0;
}

.timeline {
  position: relative;
  max-width: 860px;
  margin: 0 auto;
}

.timeline::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 24px;
  width: 2px;
  background: linear-gradient(180deg, var(--accent-green), var(--accent-cyan), transparent);
}

.timeline-item {
  position: relative;
  padding-left: 68px;
  margin-bottom: 40px;
}

.timeline-dot {
  position: absolute;
  top: 4px;
  left: 17px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--bg-primary);
  border: 2px solid var(--accent-green);
  box-shadow: 0 0 10px var(--accent-green);
}

.timeline-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 24px 28px;
  transition: all var(--transition-fast);
}

.timeline-card:hover {
  border-color: rgba(0, 255, 102, 0.3);
  transform: translateX(4px);
}

.timeline-badge {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--accent-cyan);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 8px;
  display: inline-block;
}

.timeline-title {
  font-size: 1.2rem;
  margin-bottom: 8px;
}

.timeline-text {
  font-size: 0.95rem;
  color: var(--text-secondary);
}

/* --------------------------------------------------------------------------
   Experience & Education Section
   -------------------------------------------------------------------------- */
.experience-education {
  padding: 100px 0;
  background: rgba(13, 18, 25, 0.25);
}

.dual-columns-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}

.column-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 28px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border-subtle);
}

.column-header-title {
  font-size: 1.35rem;
}

.info-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: all var(--transition-fast);
  margin-bottom: 24px;
}

.info-card:hover {
  border-color: rgba(0, 255, 102, 0.3);
}

.info-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 12px;
}

.info-title {
  font-size: 1.2rem;
  color: var(--text-highlight);
}

.info-subtitle {
  font-family: var(--font-mono);
  font-size: 0.88rem;
  color: var(--accent-green);
  margin-bottom: 6px;
}

.placeholder-pill {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.05);
  border: 1px dashed rgba(255, 255, 255, 0.15);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
}

.info-body {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

.info-bullets {
  list-style: none;
  margin-top: 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.info-bullets li {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.info-bullets li::before {
  content: '▸';
  color: var(--accent-cyan);
}

/* --------------------------------------------------------------------------
   Currently Learning Section
   -------------------------------------------------------------------------- */
.learning-section {
  padding: 80px 0;
}

.learning-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr));
  gap: 20px;
}

.learning-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 24px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 14px;
  transition: all var(--transition-fast);
  position: relative;
}

.learning-card:hover {
  border-color: var(--accent-green);
  background: var(--bg-card);
  transform: translateY(-3px);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.4), 0 0 16px rgba(0, 255, 136, 0.08);
}

.learning-card-header {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
}

.learning-icon {
  font-size: 1.35rem;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: rgba(0, 229, 255, 0.06);
  border: 1px solid rgba(0, 229, 255, 0.18);
  border-radius: var(--radius-sm);
  flex-shrink: 0;
  transition: all var(--transition-fast);
}

.learning-card:hover .learning-icon {
  border-color: rgba(0, 255, 136, 0.35);
  background: rgba(0, 255, 136, 0.08);
}

.learning-title {
  font-size: 1rem;
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.35;
  margin: 0;
}

.learning-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin: 0;
  word-wrap: break-word;
  overflow-wrap: break-word;
}


/* --------------------------------------------------------------------------
   Verified Portfolio Statistics Section
   -------------------------------------------------------------------------- */
.stats-section {
  padding: 60px 0;
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
  background: rgba(8, 12, 16, 0.4);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 32px;
  text-align: center;
}

.stat-item {
  padding: 16px;
}

.stat-number {
  font-size: clamp(2.5rem, 4vw, 3.25rem);
  font-weight: 800;
  font-family: var(--font-mono);
  color: var(--accent-green);
  line-height: 1;
  margin-bottom: 8px;
}

.stat-label {
  font-size: 0.9rem;
  color: var(--text-secondary);
  font-family: var(--font-mono);
}

/* --------------------------------------------------------------------------
   Resume & GitHub Repositories Section
   -------------------------------------------------------------------------- */
.resume-github {
  padding: 100px 0;
}

.resume-github-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.showcase-panel {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 36px;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
}

.showcase-panel:hover {
  border-color: rgba(0, 255, 102, 0.35);
  box-shadow: var(--shadow-md);
}

.panel-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
}

.panel-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--bg-surface-elevated);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-green);
  font-size: 1.4rem;
}

.panel-title {
  font-size: 1.35rem;
}

.panel-desc {
  font-size: 0.98rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 28px;
  flex-grow: 1;
}

.repo-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 20px;
  margin-bottom: 24px;
}

.repo-name {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  color: var(--accent-cyan);
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.repo-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
}

/* --------------------------------------------------------------------------
   Contact Section
   -------------------------------------------------------------------------- */
.contact {
  padding: 100px 0 120px;
  background: transparent;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.25fr;
  gap: 56px;
  align-items: center;
}

.contact-info-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-top: 24px;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 20px;
  transition: all var(--transition-fast);
}

.contact-item:hover {
  border-color: rgba(0, 229, 255, 0.4);
  transform: translateX(4px);
}

.contact-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: var(--bg-surface-elevated);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-green);
  font-size: 1.25rem;
  flex-shrink: 0;
}

.contact-label {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.contact-val {
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-primary);
  margin-top: 2px;
  word-break: break-all;
}

/* Contact Form */
.contact-form-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 40px 36px;
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-self: center;
  width: 100%;
  max-width: 600px;
  margin: 0 auto;
}

.contact-form-header {
  text-align: center;
  margin-bottom: 24px;
}

.contact-form-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-highlight);
  text-align: center;
  margin-bottom: 0;
}

.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.form-input, .form-textarea {
  width: 100%;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  transition: all var(--transition-fast);
}

.form-input:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--accent-green);
  box-shadow: 0 0 12px rgba(0, 255, 102, 0.25);
  background: rgba(18, 24, 34, 0.95);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

.form-status-msg {
  margin-top: 16px;
  font-family: var(--font-mono);
  font-size: 0.86rem;
  display: none;
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  line-height: 1.5;
  transition: all var(--transition-fast);
}

.form-status-msg.success {
  color: var(--accent-green);
  background: var(--accent-green-dim);
  border: 1px solid rgba(0, 255, 102, 0.3);
  display: block;
}

.form-status-msg.error {
  color: #ff6b6b;
  background: rgba(255, 107, 107, 0.1);
  border: 1px solid rgba(255, 107, 107, 0.28);
  display: block;
}

.form-status-msg.loading {
  color: var(--accent-cyan);
  background: var(--accent-cyan-dim);
  border: 1px solid rgba(0, 229, 255, 0.3);
  display: block;
}

/* Honeypot & Utility Hidden Rule */
.hidden {
  display: none !important;
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.footer {
  border-top: 1px solid var(--border-subtle);
  background: #05070a;
  padding: 48px 0 28px;
}

/* Brand block */
.footer-brand-block {
  margin-bottom: 28px;
  padding-bottom: 24px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.footer-title {
  font-size: 1.3rem;
  font-family: var(--font-mono);
  color: var(--text-highlight);
  margin-bottom: 6px;
}

.footer-tagline {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* Flat inline link row */
.footer-flat-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 6px 4px;
  margin-bottom: 28px;
  padding-bottom: 24px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-flat-nav a {
  font-family: var(--font-mono);
  font-size: 0.88rem;
  color: var(--text-secondary);
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background var(--transition-fast);
  white-space: nowrap;
  text-decoration: none;
}

.footer-flat-nav a:hover {
  color: var(--accent-green);
  background: var(--accent-green-dim);
}

.footer-sep {
  color: var(--text-muted);
  font-size: 0.75rem;
  opacity: 0.4;
  user-select: none;
}

/* Light mode flat nav */
[data-theme="light"] .footer {
  background: #f1f5f9;
  border-top-color: rgba(15, 23, 42, 0.1);
}

[data-theme="light"] .footer-brand-block {
  border-bottom-color: rgba(15, 23, 42, 0.08);
}

[data-theme="light"] .footer-flat-nav {
  border-bottom-color: rgba(15, 23, 42, 0.08);
}

[data-theme="light"] .footer-flat-nav a {
  color: #334155;
}

[data-theme="light"] .footer-flat-nav a:hover {
  color: #047857;
  background: rgba(5, 150, 105, 0.08);
}

/* Centered copyright */
.footer-bottom {
  padding-top: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  text-align: center;
}

/* Multi-page Footer Grid Layout (Desktop & Responsive) */
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  align-items: flex-start;
  margin-bottom: 40px;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links-group,
.footer-social-group {
  display: flex;
  flex-direction: column;
}

.footer-links-group h4,
.footer-social-group h4 {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-highlight);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 16px;
}

.footer-links-group ul,
.footer-social-group ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links-group a,
.footer-social-group a {
  font-size: 0.9rem;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
  text-decoration: none;
}

.footer-links-group a:hover,
.footer-social-group a:hover {
  color: var(--accent);
}

@media (max-width: 900px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }
}

@media (max-width: 600px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
}

/* Responsive: footer-links-row wraps on smaller screens */
@media (max-width: 768px) {
  .footer-links-row {
    gap: 32px 40px;
  }
}

@media (max-width: 480px) {
  .footer-links-row {
    flex-direction: column;
    gap: 28px;
  }
}

/* --------------------------------------------------------------------------
   Project Detail Modal
   -------------------------------------------------------------------------- */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(5, 8, 12, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.modal-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.modal-container {
  background: var(--bg-surface);
  border: 1px solid var(--border-card-hover);
  border-radius: var(--radius-lg);
  max-width: 900px;
  width: 100%;
  max-height: 88vh;
  overflow-y: auto;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.8), var(--shadow-glow-cyan);
  transform: translateY(20px) scale(0.98);
  transition: transform var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.modal-overlay.open .modal-container {
  transform: translateY(0) scale(1);
}

.modal-header {
  padding: 28px 32px 20px;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  border-bottom: 1px solid var(--border-subtle);
  position: sticky;
  top: 0;
  background: var(--bg-surface);
  z-index: 10;
}

.modal-close-btn {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.25rem;
  transition: all var(--transition-fast);
}

.modal-close-btn:hover {
  background: #ef4444;
  color: #ffffff;
  border-color: #ef4444;
}

.modal-body {
  padding: 28px 32px 36px;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.modal-section-title {
  font-family: var(--font-mono);
  font-size: 0.92rem;
  color: var(--accent-cyan);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.modal-section-title::before {
  content: '//';
  color: var(--accent-green);
}

.modal-text {
  font-size: 0.98rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.modal-features-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.modal-features-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.modal-features-list li::before {
  content: '✔';
  color: var(--accent-green);
  font-size: 0.9rem;
}

.modal-arch-diagram {
  background: #090d12;
  border: 1px solid rgba(0, 255, 102, 0.2);
  border-radius: var(--radius-md);
  padding: 22px 24px;
  font-family: var(--font-mono);
  font-size: 0.86rem;
  color: #a7f3d0;
  white-space: pre-wrap;
  line-height: 1.6;
  margin-bottom: 24px;
  overflow-x: auto;
}

/* --------------------------------------------------------------------------
   Accessibility & Reduced Motion
   -------------------------------------------------------------------------- */
:focus-visible {
  outline: 2px solid var(--accent-green);
  outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  #matrixCanvas {
    display: none !important;
  }
}



/* --------------------------------------------------------------------------
   MEET YASH / BEHIND THE CODE (PERSONAL PHOTO & IDENTITY SECTION)
   -------------------------------------------------------------------------- */
.meet-yash-section {
  padding: 100px 0 60px;
  position: relative;
}

.meet-yash-section .section-title {
  white-space: nowrap;
}

.meet-yash-profile-grid {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 48px;
  align-items: start;
  margin-bottom: 60px;
}

/* Solo Profile Photo Presentation */
.profile-photo-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid rgba(0, 255, 102, 0.35);
  border-radius: var(--radius-lg);
  padding: 14px;
  box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.7), 0 0 25px rgba(0, 255, 102, 0.12);
  transition: all var(--transition-normal);
  overflow: hidden;
}

.profile-photo-card:hover {
  border-color: var(--accent-cyan);
  box-shadow: 0 15px 35px -10px rgba(0, 0, 0, 0.8), 0 0 30px rgba(0, 229, 255, 0.2);
  transform: translateY(-4px);
}

.profile-photo-wrapper {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: radial-gradient(circle at center 35%, rgba(0, 255, 102, 0.12) 0%, rgba(0, 229, 255, 0.06) 45%, #050910 85%);
  aspect-ratio: 1450 / 2176;
  display: flex;
  align-items: center;
  justify-content: center;
}

.profile-photo-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
  filter: drop-shadow(0 12px 24px rgba(0, 0, 0, 0.85));
  transition: transform var(--transition-normal);
}

.profile-photo-card:hover .profile-photo-img {
  transform: scale(1.03);
}

/* Cyber corner HUD brackets */
.cyber-corner-tl, .cyber-corner-tr, .cyber-corner-bl, .cyber-corner-br {
  position: absolute;
  width: 16px;
  height: 16px;
  border-color: var(--accent-green);
  pointer-events: none;
  z-index: 2;
  transition: border-color var(--transition-fast);
}

.profile-photo-card:hover .cyber-corner-tl,
.profile-photo-card:hover .cyber-corner-tr,
.profile-photo-card:hover .cyber-corner-bl,
.profile-photo-card:hover .cyber-corner-br {
  border-color: var(--accent-cyan);
}

.cyber-corner-tl { top: 6px; left: 6px; border-top: 2px solid; border-left: 2px solid; }
.cyber-corner-tr { top: 6px; right: 6px; border-top: 2px solid; border-right: 2px solid; }
.cyber-corner-bl { bottom: 6px; left: 6px; border-bottom: 2px solid; border-left: 2px solid; }
.cyber-corner-br { bottom: 6px; right: 6px; border-bottom: 2px solid; border-right: 2px solid; }

.photo-status-badge {
  position: absolute;
  bottom: 12px;
  left: 12px;
  right: 12px;
  background: rgba(7, 10, 14, 0.88);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 6px 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-primary);
  z-index: 3;
}

.photo-status-indicator {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--accent-green);
}

.photo-status-indicator .pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-green);
  box-shadow: 0 0 8px var(--accent-green);
  animation: pulse 2s infinite;
}

/* About Me Content beside Photo */
.profile-intro-content {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.profile-intro-heading {
  font-size: 1.75rem;
  line-height: 1.25;
  color: var(--text-primary);
}

.profile-intro-text {
  font-size: 1.02rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.profile-focus-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 4px;
}

.profile-focus-pills .focus-pill {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  padding: 5px 12px;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--accent-cyan);
  transition: all var(--transition-fast);
}

.profile-focus-pills .focus-pill:hover {
  border-color: var(--accent-green);
  color: var(--accent-green);
  background: var(--bg-surface-elevated);
}

/* Personal Identity Card ($ whoami) */
.identity-terminal-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  margin-top: 8px;
}

.identity-terminal-header {
  background: var(--bg-surface);
  padding: 8px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-subtle);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--text-muted);
}

.identity-terminal-body {
  padding: 16px 20px;
  font-family: var(--font-mono);
  font-size: 0.86rem;
  line-height: 1.8;
  color: var(--text-secondary);
}

.identity-terminal-body .terminal-prompt-line {
  color: var(--accent-green);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.identity-row {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 12px;
}

.identity-key {
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 0.78rem;
}

.identity-val {
  color: var(--text-primary);
  font-weight: 500;
}

.identity-val.highlight-green {
  color: var(--accent-green);
}

.identity-val.highlight-cyan {
  color: var(--accent-cyan);
}

/* Personal Photo Gallery */
.personal-gallery-section {
  margin-top: 50px;
  padding-top: 40px;
  border-top: 1px solid var(--border-subtle);
}

.gallery-section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 28px;
}

.gallery-section-title {
  font-size: 1.35rem;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 10px;
}

.gallery-section-subtitle {
  font-size: 0.88rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.gallery-lightbox-btn:hover {
  border-color: var(--accent-cyan) !important;
  box-shadow: 0 0 14px rgba(0, 229, 255, 0.25);
  color: var(--text-highlight) !important;
}

.personal-gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.personal-gallery-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: pointer;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.personal-gallery-card:hover {
  border-color: var(--accent-cyan);
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.7), 0 0 20px rgba(0, 229, 255, 0.15);
  transform: translateY(-4px);
}

.gallery-card-media {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: #090d13;
}

.gallery-card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform var(--transition-normal);
}

.personal-gallery-card:hover .gallery-card-img {
  transform: scale(1.05);
}

.gallery-card-overlay {
  position: absolute;
  inset: 0;
  background: rgba(7, 10, 14, 0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.gallery-expand-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(0, 229, 255, 0.2);
  border: 1px solid var(--accent-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-cyan);
  font-size: 1.1rem;
  transform: scale(0.85);
  transition: transform var(--transition-fast);
}

.personal-gallery-card:hover .gallery-card-overlay {
  opacity: 1;
}

.personal-gallery-card:hover .gallery-expand-icon {
  transform: scale(1);
}

.gallery-card-footer {
  padding: 12px 14px;
  background: var(--bg-surface);
  border-top: 1px solid var(--border-subtle);
  flex-grow: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

.gallery-card-title {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
  text-align: center;
  margin-bottom: 0;
}

.gallery-card-caption,
.lightbox-caption,
.lightbox-footer {
  display: none !important;
}

/* --------------------------------------------------------------------------
   PHOTO LIGHTBOX MODAL
   -------------------------------------------------------------------------- */
.photo-lightbox {
  position: fixed;
  inset: 0;
  z-index: 1050;
  background: rgba(5, 7, 10, 0.94);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-fast);
}

.photo-lightbox.open {
  opacity: 1;
  pointer-events: auto;
}

.lightbox-dialog {
  position: relative;
  max-width: 960px;
  width: 100%;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 25px 60px -15px rgba(0, 0, 0, 0.9), 0 0 35px rgba(0, 229, 255, 0.15);
  animation: modalSlideUp 0.3s ease-out;
}

.lightbox-header {
  padding: 12px 18px;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.lightbox-header-info {
  display: flex;
  align-items: center;
  gap: 14px;
}

.lightbox-counter {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent-green);
  background: rgba(0, 255, 102, 0.1);
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(0, 255, 102, 0.25);
}

.lightbox-title {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
}

.lightbox-close-btn {
  background: transparent;
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  transition: all var(--transition-fast);
}

.lightbox-close-btn:hover {
  color: var(--accent-green);
  border-color: var(--accent-green);
}

.lightbox-body {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #040608;
  max-height: 65vh;
  overflow: hidden;
}

.lightbox-img {
  max-width: 100%;
  max-height: 65vh;
  width: auto;
  height: auto;
  object-fit: contain;
  display: block;
}

.lightbox-nav-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(13, 18, 25, 0.8);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.35rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  z-index: 5;
}

.lightbox-nav-btn:hover {
  background: var(--bg-surface-elevated);
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

.lightbox-nav-prev { left: 16px; }
.lightbox-nav-next { right: 16px; }

.lightbox-footer {
  padding: 14px 20px;
  background: var(--bg-surface);
  border-top: 1px solid var(--border-subtle);
}

.lightbox-caption {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* --------------------------------------------------------------------------
   PROJECT VISUAL CUES & DISTINCTION (TECAR vs LASER)
   -------------------------------------------------------------------------- */
.project-visual-cue,
.project-visual-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  margin-bottom: 10px;
  text-transform: uppercase;
  white-space: nowrap;
  width: fit-content;
}

.project-visual-cue.tecar {
  background: rgba(0, 255, 102, 0.1);
  border: 1px solid rgba(0, 255, 102, 0.3);
  color: var(--accent-green);
}

.project-visual-cue.laser {
  background: rgba(0, 229, 255, 0.1);
  border: 1px solid rgba(0, 229, 255, 0.35);
  color: var(--accent-cyan);
}

.project-visual-cue.ai {
  background: rgba(168, 85, 247, 0.12);
  border: 1px solid rgba(168, 85, 247, 0.3);
  color: #c084fc;
}

.project-visual-cue.enterprise {
  background: rgba(59, 130, 246, 0.12);
  border: 1px solid rgba(59, 130, 246, 0.3);
  color: #60a5fa;
}

.project-visual-cue.volant, .project-visual-cue.cv, .project-visual-cue.iot {
  background: rgba(148, 163, 184, 0.1);
  border: 1px solid rgba(148, 163, 184, 0.25);
  color: var(--text-muted);
}

/* TECAR Card Highlight */
.project-card-tecar {
  border-color: rgba(0, 255, 102, 0.4);
  box-shadow: 0 4px 20px -2px rgba(0, 255, 102, 0.08);
}

.project-card-tecar:hover {
  border-color: var(--accent-green);
  box-shadow: 0 12px 30px -4px rgba(0, 0, 0, 0.8), 0 0 25px rgba(0, 255, 102, 0.2);
}

/* Laser (Lumino Pro) Card Highlight */
.project-card-laser {
  border-color: rgba(0, 229, 255, 0.4);
  box-shadow: 0 4px 20px -2px rgba(0, 229, 255, 0.08);
}

.project-card-laser:hover {
  border-color: var(--accent-cyan);
  box-shadow: 0 12px 30px -4px rgba(0, 0, 0, 0.8), 0 0 25px rgba(0, 229, 255, 0.2);
}

/* Case study modal additions */
.modal-case-header {
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: 20px;
}

.modal-disclaimer-badge {
  background: rgba(148, 163, 184, 0.08);
  border: 1px solid rgba(148, 163, 184, 0.25);
  border-radius: var(--radius-sm);
  padding: 8px 14px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin-top: 10px;
}

.modal-challenge-card {
  background: var(--bg-surface);
  padding: 14px 18px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
  margin-bottom: 10px;
}

.modal-challenge-title {
  font-weight: 600;
  color: #f87171;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  margin-bottom: 4px;
}

.modal-challenge-mitigation {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.5;
}


/* ==========================================================================
   NEW REFACTORED COMPONENT CLASSES
   ========================================================================== */

/* Project Outcome Pill */
.project-outcome-pill {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  background: rgba(0, 229, 255, 0.12);
  border: 1px solid rgba(0, 229, 255, 0.35);
  color: var(--accent-cyan);
  display: inline-block;
  letter-spacing: 0.02em;
}

/* Plain-English Summary */
.project-plain-summary {
  background: rgba(14, 22, 32, 0.7);
  border-left: 3px solid var(--accent-green);
  padding: 10px 14px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin-bottom: 12px;
}

[data-theme="light"] .project-plain-summary {
  background: rgba(5, 150, 105, 0.06);
  border: 1px solid var(--border-subtle);
  border-left: 3px solid var(--accent-green);
}

.plain-summary-label {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 700;
  color: var(--accent-green);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  display: block;
  margin-bottom: 3px;
}

.plain-summary-text {
  font-size: 0.88rem;
  color: var(--text-primary);
  line-height: 1.45;
  margin: 0;
}

/* Project Card Medical Disclaimer */
.project-card-disclaimer {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--text-muted);
  line-height: 1.4;
  margin-top: 10px;
  padding: 6px 10px;
  background: rgba(18, 26, 38, 0.5);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
}

[data-theme="light"] .project-card-disclaimer {
  background: #f1f5f9;
  border-color: rgba(15, 23, 42, 0.1);
}

/* Services / How I Can Help Section */
.services-section {
  padding: 80px 0;
  position: relative;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
  margin-top: 36px;
}

.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.service-card:hover {
  border-color: var(--accent-green);
  transform: translateY(-4px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.5), 0 0 20px rgba(0, 255, 102, 0.15);
}

.service-icon {
  font-size: 1.8rem;
  margin-bottom: 16px;
  display: inline-block;
}

.service-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-highlight);
  margin-bottom: 10px;
}

.service-desc {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.6;
  flex-grow: 1;
}

.service-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 16px;
}

/* Availability Card */
.availability-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 24px;
  margin-top: 24px;
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.availability-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(0, 255, 102, 0.12);
  border: 1px solid rgba(0, 255, 102, 0.35);
  color: var(--accent-green);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: var(--radius-full);
}

/* Resume & Contact Clean Helpers */
.resume-info-box {
  background: var(--bg-surface);
  padding: 16px 20px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  margin-bottom: 24px;
}

.resume-info-filename {
  font-family: var(--font-mono);
  font-size: 0.88rem;
  color: var(--accent-green);
  font-weight: 600;
  margin-bottom: 4px;
}

.resume-info-desc {
  font-size: 0.86rem;
  color: var(--text-secondary);
}

.whatsapp-direct-badge {
  color: #25d366;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 44px;
  padding: 6px 0;
}

/* Modal sizing with modern viewport units */
.modal-container {
  max-height: 90vh;
  max-height: 90dvh;
}

/* Lightbox sizing with modern viewport units */
.photo-lightbox {
  height: 100vh;
  height: 100dvh;
}

/* --------------------------------------------------------------------------
   RESPONSIVE BREAKPOINTS (Consolidated & Complete)
   -------------------------------------------------------------------------- */

@media (max-width: 1360px) and (min-width: 1181px) {
  .nav-links {
    gap: 8px;
  }
  .nav-link {
    font-size: 0.82rem;
    padding: 4px 2px;
  }
  .nav-actions {
    margin-left: 12px;
  }
  .ctrl-label,
  .btn-label {
    display: none !important;
  }
  .ctrl-btn {
    padding: 8px 10px;
    gap: 0;
  }
}

@media (max-width: 1180px) {
  :root {
    --nav-height: 68px;
  }

  /* Hamburger navigation */
  .menu-toggle {
    display: inline-flex;
  }

  .ctrl-label,
  .btn-label {
    display: none !important;
  }

  .ctrl-btn {
    padding: 8px 10px;
    gap: 0;
    min-width: 40px;
    min-height: 40px;
  }

  .matrix-toggle {
    padding: 8px 10px;
    min-width: 40px;
    min-height: 40px;
  }

  .nav-links {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    width: 100%;
    background: rgba(8, 12, 16, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: flex-start;
    padding: 24px 24px 32px;
    gap: 16px;
    border-bottom: 1px solid var(--border-subtle);
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    visibility: hidden;
    transition: all var(--transition-normal);
    z-index: 999;
  }

  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
    visibility: visible;
  }

  /* Mobile Hero: Text first! No order: -1 on hero-visual */
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero-visual {
    order: 1;
    max-width: 520px;
    margin: 0 auto;
    width: 100%;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hardware-grid {
    grid-template-columns: 1fr;
  }

  .dual-columns-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .resume-github-grid {
    grid-template-columns: 1fr;
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }

  .meet-yash-profile-grid {
    grid-template-columns: 280px 1fr;
    gap: 36px;
  }

  .personal-gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  :root {
    --nav-height: 64px;
  }

  body::before {
    background-size: 32px 32px;
    opacity: 0.65;
  }

  .hero {
    padding: 48px 0 64px;
  }

  .hero-headline {
    flex-wrap: wrap;
    font-size: 0.95rem;
  }

  .projects-grid {
    grid-template-columns: 1fr;
  }

  .skills-grid {
    grid-template-columns: 1fr;
  }

  .showcase-panel {
    padding: 24px 20px;
  }

  .timeline::before {
    left: 12px;
  }

  .timeline-item {
    padding-left: 44px;
  }

  .timeline-dot {
    left: 5px;
  }

  .quick-facts {
    grid-template-columns: 1fr;
  }

  .meet-yash-profile-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .profile-photo-card {
    max-width: 300px;
    margin: 0 auto;
  }

  .personal-gallery-grid {
    grid-template-columns: 1fr;
  }

  .gallery-section-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .lightbox-nav-btn {
    width: 44px;
    height: 44px;
    font-size: 1.2rem;
  }
  .lightbox-nav-prev { left: 8px; }
  .lightbox-nav-next { right: 8px; }
}

@media (max-width: 600px) {
  .terminal-intro-overlay {
    padding: 12px;
  }

  .terminal-intro-window {
    max-height: calc(100dvh - 24px);
    border-radius: var(--radius-sm);
  }

  .terminal-window-header {
    padding: 8px 12px;
  }

  .terminal-window-title {
    font-size: 0.76rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 170px;
  }

  .terminal-window-body {
    padding: 16px 14px;
  }

  .terminal-prompt-line {
    font-size: 0.85rem;
    margin-bottom: 12px;
  }

  .terminal-output-area {
    margin-bottom: 16px;
    min-height: auto;
    gap: 6px;
  }

  .term-line {
    font-size: 0.82rem;
    line-height: 1.45;
    word-break: break-word;
  }

  .terminal-actions {
    flex-direction: column;
    align-items: stretch;
    justify-content: stretch;
    gap: 10px;
    padding-top: 14px;
    width: 100%;
  }

  .terminal-actions .btn {
    width: 100%;
    justify-content: center;
    padding: 12px 14px;
    font-size: 0.86rem;
    box-sizing: border-box;
    white-space: normal;
  }

  .btn {
    max-width: 100%;
    white-space: normal;
    text-align: center;
    word-break: break-word;
  }

  .btn span {
    white-space: normal;
  }

  .arch-showcase {
    padding: 20px 14px;
  }

  .arch-steps-grid {
    grid-template-columns: 1fr;
  }

  .arch-step-node {
    grid-template-columns: 38px 1fr;
    gap: 12px;
    padding: 14px 12px;
  }

  .arch-step-num {
    width: 36px;
    height: 36px;
    font-size: 0.95rem;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 14px;
  }

  .nav-container {
    gap: 6px;
  }

  .nav-brand {
    font-size: clamp(0.85rem, 3.6vw, 1rem);
    min-width: 0;
    max-width: 48%;
  }

  .brand-name {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .nav-actions {
    gap: 6px;
    margin-left: auto;
  }

  .nav-controls {
    gap: 4px;
  }

  .ctrl-btn {
    padding: 6px;
    min-width: 36px;
    min-height: 36px;
  }

  .matrix-toggle {
    padding: 6px;
    min-width: 36px;
    min-height: 36px;
  }

  .menu-toggle {
    padding: 6px;
    min-width: 38px;
    min-height: 38px;
  }

  .hero-name {
    font-size: 2.2rem;
  }

  .hero-cta-group {
    flex-direction: column;
    width: 100%;
    gap: 12px;
  }

  .hero-cta-group .btn {
    width: 100%;
    justify-content: center;
  }

  .project-card-actions {
    flex-direction: column;
    gap: 10px;
  }

  .project-card-actions .btn {
    width: 100%;
    justify-content: center;
  }

  .modal-overlay {
    padding: 12px;
  }

  .modal-container {
    padding: 20px 14px;
    margin: 0;
    width: 100%;
  }

  .modal-header {
    padding: 18px 16px 14px;
  }

  .modal-body {
    padding: 16px;
  }

  .showcase-panel {
    padding: 20px 16px;
  }

  .showcase-panel .btn {
    width: 100%;
    justify-content: center;
  }

  .resume-info-filename {
    word-break: break-all;
  }

  .photo-lightbox {
    padding: 10px;
  }

  .lightbox-dialog {
    max-height: 94dvh;
    width: 100%;
    margin: 0;
  }

  .arch-tabs-list {
    flex-direction: column;
    width: 100%;
  }

  .arch-tab-btn {
    width: 100%;
    justify-content: center;
  }

  .arch-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .arch-header > div {
    width: 100%;
    min-width: 0;
  }

  .arch-title {
    font-size: clamp(1.15rem, 4.2vw, 1.4rem);
    word-break: break-word;
  }

  .arch-subtitle {
    word-break: break-word;
  }
}

@media (max-width: 360px) {
  .container {
    padding: 0 10px;
  }

  .nav-container {
    gap: 4px;
  }

  .nav-brand {
    font-size: 0.82rem;
    max-width: 40%;
  }

  .nav-actions {
    gap: 4px;
  }

  .nav-controls {
    gap: 2px;
  }

  .ctrl-btn {
    padding: 4px;
    min-width: 32px;
    min-height: 32px;
  }

  .matrix-toggle {
    padding: 4px;
    min-width: 32px;
    min-height: 32px;
  }

  .menu-toggle {
    padding: 4px;
    min-width: 34px;
    min-height: 34px;
  }

  .arch-showcase {
    padding: 16px 10px;
  }

  .arch-step-node {
    grid-template-columns: 32px 1fr;
    gap: 10px;
    padding: 12px 10px;
  }

  .arch-step-num {
    width: 32px;
    height: 32px;
    font-size: 0.85rem;
  }

  .showcase-panel {
    padding: 16px 12px;
  }
}

/* ==========================================================================
   MULTI-PAGE CASE STUDY, BREADCRUMB & DEDICATED ROUTE STYLING
   ========================================================================== */

/* Page Hero & Breadcrumbs */
.page-hero {
  padding: 60px 0 40px;
  border-bottom: 1px solid var(--border-subtle);
  background: linear-gradient(180deg, var(--bg-surface) 0%, var(--bg-primary) 100%);
  position: relative;
}

.breadcrumbs {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.breadcrumbs a {
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.breadcrumbs a:hover {
  color: var(--accent);
}

.breadcrumbs .separator {
  color: var(--border-subtle);
}

.breadcrumbs .current {
  color: var(--accent);
  font-weight: 600;
}

/* Case Study Deep-Dive Layout */
.case-study-meta-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 24px;
  align-items: center;
}

.meta-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-secondary);
}

.meta-pill-accent {
  border-color: var(--accent-border);
  color: var(--accent);
  background: var(--accent-dim);
  font-weight: 600;
}

.case-study-body {
  padding: 60px 0 100px;
}

.case-study-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 40px;
}

@media (max-width: 992px) {
  .case-study-grid {
    grid-template-columns: 1fr;
  }
}

.case-study-main {
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.case-study-sidebar {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.case-study-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 32px;
  transition: all var(--transition-fast);
}

.case-study-card:hover {
  border-color: var(--accent-border);
}

.case-study-card-title {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-highlight);
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 12px;
}

.case-study-card-title::before {
  content: '>';
  color: var(--accent);
  font-family: var(--font-mono);
}

.challenge-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.challenge-item {
  background: var(--bg-primary);
  border: 1px solid var(--border-subtle);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius-sm);
  padding: 16px 20px;
}

.challenge-title {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.challenge-text {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.feature-checklist {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.feature-checklist li {
  position: relative;
  padding-left: 28px;
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.feature-checklist li::before {
  content: '✓';
  position: absolute;
  left: 0;
  top: 0;
  color: var(--accent);
  font-weight: 700;
  font-family: var(--font-mono);
}

/* Skills Page Meaningful Category Cards */
.skills-detail-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 28px;
  margin-top: 36px;
}

.skill-detail-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: all var(--transition-fast);
}

.skill-detail-card:hover {
  border-color: var(--accent-border);
  transform: translateY(-3px);
  box-shadow: 0 10px 24px var(--shadow-color);
}

.skill-detail-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-highlight);
  display: flex;
  align-items: center;
  gap: 10px;
}

.skill-detail-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.skill-detail-item {
  padding: 12px 14px;
  background: var(--bg-primary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
}

.skill-tech-name {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 4px;
}

.skill-tech-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* Resume Page Recruiter Layout */
.resume-paper {
  max-width: 900px;
  margin: 0 auto;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 48px;
  box-shadow: var(--shadow-md);
}

.resume-header-block {
  border-bottom: 2px solid var(--border-subtle);
  padding-bottom: 24px;
  margin-bottom: 32px;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 24px;
  flex-wrap: wrap;
}

.resume-section-title {
  font-family: var(--font-mono);
  font-size: 1.15rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--accent);
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 8px;
  margin: 28px 0 18px;
}

.resume-item {
  margin-bottom: 20px;
}

.resume-item-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 6px;
}

.resume-role {
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--text-highlight);
}

.resume-company {
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.92rem;
}

.resume-dates {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-muted);
}

.resume-bullets {
  list-style: square;
  padding-left: 20px;
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.6;
}

/* Print Stylesheet for Resume */
@media print {
  .navbar, .footer, .skip-link, .nav-controls, #matrixCanvas, .btn-print, .breadcrumbs {
    display: none !important;
  }
  body {
    background: #ffffff !important;
    color: #000000 !important;
  }
  .resume-paper {
    border: none !important;
    box-shadow: none !important;
    padding: 0 !important;
    max-width: 100% !important;
  }
  .resume-role, .resume-company, .resume-section-title {
    color: #000000 !important;
  }
  a {
    text-decoration: underline !important;
    color: #000000 !important;
  }
}