/* ==========================================================================
   TECHEED — Premium Interaction & Aesthetic Layer (v3.0 Modern Edition)
   Crafted for Saeed Rezaei / techeed.ir
   Featuring: Design Tokens, Modern Glassmorphism, 60fps Compositor Animations,
   Full CSS Logical Properties (RTL/LTR), Dark/Light Modes, and WCAG A11y
   ========================================================================== */

/* ==========================================================================
   1. DESIGN TOKENS (Primitive & Semantic Token Hierarchy)
   ========================================================================== */
:root {
  /* Brand Primitives (Cyber Orange Default) */
  --primary-raw-r: 255;
  --primary-raw-g: 90;
  --primary-raw-b: 31;
  --primary: rgb(var(--primary-raw-r), var(--primary-raw-g), var(--primary-raw-b));
  --primary-glow: rgba(var(--primary-raw-r), var(--primary-raw-g), var(--primary-raw-b), 0.35);
  --primary-light: #ff7d4d;
  --primary-dark: #d8450e;
  --primary-fg: #080808;

  /* Surface & Background Tokens (Cyber Dark Mode Default) */
  --bg-canvas: #060608;
  --bg-surface: #0a0b0f;
  --bg-surface-elevated: #12141a;
  --bg-card: rgba(18, 20, 26, 0.72);
  --bg-card-hover: rgba(26, 28, 38, 0.88);
  --bg-glass: rgba(14, 16, 22, 0.65);
  --bg-glass-heavy: rgba(10, 11, 15, 0.94);
  --bg-input: rgba(255, 255, 255, 0.05);

  /* Typography Colors */
  --text-main: #f4f1ea;
  --text-primary: #f4f1ea;
  --text-secondary: #c2c0b8;
  --text-muted: #8b8f9a;
  --text-faint: #565964;

  /* Border Tokens */
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-medium: rgba(255, 255, 255, 0.16);
  --border-strong: rgba(255, 255, 255, 0.28);
  --border-active: rgba(var(--primary-raw-r), var(--primary-raw-g), var(--primary-raw-b), 0.45);

  /* Elevation & Shadow Hierarchy */
  --shadow-sm: 0 2px 6px rgba(0, 0, 0, 0.35);
  --shadow-md: 0 8px 24px -4px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 16px 40px -8px rgba(0, 0, 0, 0.65);
  --shadow-xl: 0 25px 65px -12px rgba(0, 0, 0, 0.85);
  --shadow-glow: 0 0 25px var(--primary-glow);
  --shadow-glow-lg: 0 0 45px var(--primary-glow);

  /* Border Radius Tokens */
  --radius-xs: 4px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Spacing Tokens */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;
  --space-gutter: clamp(1rem, 0.75rem + 1.25vw, 2.5rem);

  /* Animation & Transition Timing Functions */
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-snappy: cubic-bezier(0.2, 0.8, 0.2, 1);
  --ease-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);
  --duration-fast: 150ms;
  --duration-normal: 250ms;
  --duration-slow: 400ms;

  /* Fluid Typography Scale */
  --font-heading: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --font-persian: 'Vazirmatn', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Primitive Color Palette Tokens */
  --color-white: #ffffff;
  --color-black: #000000;
  --color-charcoal: #080808;
  --color-charcoal-dark: #050507;
  --color-charcoal-card: #090909;
  --color-charcoal-elevated: #111111;
  --color-cream: #f4f1ea;
  --color-cream-subtle: #e8e5dc;
  --color-gray-50: #f8fafc;
  --color-gray-100: #f1f5f9;
  --color-gray-200: #e2e8f0;
  --color-gray-300: #cbd5e1;
  --color-gray-400: #94a3b8;
  --color-gray-500: #64748b;
  --color-gray-600: #4b5563;
  --color-gray-700: #334155;
  --color-gray-800: #1e293b;
  --color-gray-850: #18181b;
  --color-gray-900: #0f172a;
  --color-terminal-green: #34d399;
  --color-terminal-green-light: #86e1a4;
  --color-syntax-key: #93c5fd;
  --color-syntax-num: #facc15;
  --color-syntax-com: #6b7280;
  --color-accent-orange: #ff5a1f;
  --color-accent-orange-dark: #4a1505;
  --color-accent-orange-lead: #1a0f0a;
  --color-accent-orange-contact: #22120c;
  --color-accent-orange-light: #ff9f43;
  --color-accent-orange-deep: #3d1608;
  --color-accent-blue: #38bdf8;
  --color-accent-blue-light: #60a5fa;
  --color-accent-blue-dark: #0284c7;
  --color-accent-blue-deep: #092138;
  --color-accent-blue-vivid: #3b82f6;
  --color-accent-green: #10b981;
  --color-accent-green-dark: #059669;
  --color-accent-yellow: #eab308;
  --color-accent-yellow-dark: #382c0b;
  --color-social-tg: #2AABEE;
  --color-social-ig: #ff547a;
  --color-error: #e81123;

  /* Semantic On-Accent & Surface Contrast Tokens */
  --text-on-accent: var(--color-charcoal);
  --text-on-accent-subtle: var(--color-accent-orange-dark);
  --text-on-accent-lead: var(--color-accent-orange-lead);
  --text-on-accent-contact: var(--color-accent-orange-contact);
  --text-on-light: var(--color-charcoal);
  --text-on-light-muted: var(--color-gray-600);
  --text-on-dark: var(--color-white);
  --bg-card-contrast: var(--color-charcoal-card);

  /* Backward Compatibility Variables */
  --bg: var(--bg-canvas);
  --a: var(--primary);
  --f: var(--text-main);
  --m: var(--text-muted);
  --b: var(--bg-canvas);
}

/* Light Mode Overrides via Data Attribute or User System Preference */

/* Explicit Dark Mode Overrides */
[data-theme="dark"] {
  --bg-canvas: #060608;
  --bg-surface: #0a0b0f;
  --bg-surface-elevated: #12141a;
  --bg-card: rgba(18, 20, 26, 0.72);
  --bg-card-hover: rgba(26, 28, 38, 0.88);
  --bg-glass: rgba(14, 16, 22, 0.65);
  --bg-glass-heavy: rgba(10, 11, 15, 0.94);
  --bg-input: rgba(255, 255, 255, 0.05);

  --text-main: #f4f1ea;
  --text-primary: #f4f1ea;
  --text-secondary: #c2c0b8;
  --text-muted: #8b8f9a;
  --text-faint: #565964;

  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-medium: rgba(255, 255, 255, 0.16);
  --border-strong: rgba(255, 255, 255, 0.28);
  --border-active: rgba(var(--primary-raw-r), var(--primary-raw-g), var(--primary-raw-b), 0.45);

  --shadow-sm: 0 2px 6px rgba(0, 0, 0, 0.35);
  --shadow-md: 0 8px 24px -4px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 16px 40px -8px rgba(0, 0, 0, 0.65);
  --shadow-xl: 0 25px 65px -12px rgba(0, 0, 0, 0.85);
}

[data-theme="light"] {
  --bg-canvas: #f8fafc;
  --bg-surface: #ffffff;
  --bg-surface-elevated: #f1f5f9;
  --bg-card: rgba(255, 255, 255, 0.85);
  --bg-card-hover: rgba(255, 255, 255, 0.96);
  --bg-glass: rgba(255, 255, 255, 0.75);
  --bg-glass-heavy: rgba(255, 255, 255, 0.95);
  --bg-input: rgba(0, 0, 0, 0.04);

  --text-main: #090a0f;
  --text-primary: #090a0f;
  --text-secondary: #334155;
  --text-muted: #64748b;
  --text-faint: #94a3b8;

  --border-subtle: rgba(0, 0, 0, 0.08);
  --border-medium: rgba(0, 0, 0, 0.16);
  --border-strong: rgba(0, 0, 0, 0.28);
  --border-active: rgba(var(--primary-raw-r), var(--primary-raw-g), var(--primary-raw-b), 0.55);

  --shadow-sm: 0 2px 6px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 8px 24px -4px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 16px 40px -8px rgba(0, 0, 0, 0.12);
  --shadow-xl: 0 25px 65px -12px rgba(0, 0, 0, 0.16);
}


/* Automatic System Light Mode Preference */
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --bg-canvas: #f8fafc;
    --bg-surface: #ffffff;
    --bg-surface-elevated: #f1f5f9;
    --bg-card: rgba(255, 255, 255, 0.85);
    --bg-card-hover: rgba(255, 255, 255, 0.96);
    --bg-glass: rgba(255, 255, 255, 0.75);
    --bg-glass-heavy: rgba(255, 255, 255, 0.95);
    --bg-input: rgba(0, 0, 0, 0.04);

    --text-main: #090a0f;
    --text-primary: #090a0f;
    --text-secondary: #334155;
    --text-muted: #64748b;
    --text-faint: #94a3b8;

    --border-subtle: rgba(0, 0, 0, 0.08);
    --border-medium: rgba(0, 0, 0, 0.16);
    --border-strong: rgba(0, 0, 0, 0.28);
    --border-active: rgba(var(--primary-raw-r), var(--primary-raw-g), var(--primary-raw-b), 0.55);

    --shadow-sm: 0 2px 6px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 8px 24px -4px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 16px 40px -8px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 25px 65px -12px rgba(0, 0, 0, 0.16);
  }
}

/* Theme Color Accent Variations */
body.theme-blue {
  --primary-raw-r: 56;
  --primary-raw-g: 189;
  --primary-raw-b: 248;
  --primary: var(--color-accent-blue);
  --primary-glow: rgba(56, 189, 248, 0.35);
  --primary-light: var(--color-accent-blue-light);
  --primary-dark: var(--color-accent-blue-dark);
  --primary-fg: var(--color-charcoal);
  --border-active: rgba(56, 189, 248, 0.45);
}

body.theme-green {
  --primary-raw-r: 16;
  --primary-raw-g: 185;
  --primary-raw-b: 129;
  --primary: var(--color-accent-green);
  --primary-glow: rgba(16, 185, 129, 0.35);
  --primary-light: var(--color-terminal-green);
  --primary-dark: var(--color-accent-green-dark);
  --primary-fg: var(--color-charcoal);
  --border-active: rgba(16, 185, 129, 0.45);
}

/* ==========================================================================
   2. GLOBAL POLISH & BASE STYLES
   ========================================================================== */
*, *::before, *::after {
  box-sizing: border-box;
}

img, svg, video, canvas {
  max-width: 100%;
  height: auto;
}

img {
  aspect-ratio: auto;
}

html {
  scroll-behavior: smooth;
  color-scheme: dark;
}


/* Explicit Dark Mode Overrides */
[data-theme="dark"] {
  --bg-canvas: #060608;
  --bg-surface: #0a0b0f;
  --bg-surface-elevated: #12141a;
  --bg-card: rgba(18, 20, 26, 0.72);
  --bg-card-hover: rgba(26, 28, 38, 0.88);
  --bg-glass: rgba(14, 16, 22, 0.65);
  --bg-glass-heavy: rgba(10, 11, 15, 0.94);
  --bg-input: rgba(255, 255, 255, 0.05);

  --text-main: #f4f1ea;
  --text-primary: #f4f1ea;
  --text-secondary: #c2c0b8;
  --text-muted: #8b8f9a;
  --text-faint: #565964;

  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-medium: rgba(255, 255, 255, 0.16);
  --border-strong: rgba(255, 255, 255, 0.28);
  --border-active: rgba(var(--primary-raw-r), var(--primary-raw-g), var(--primary-raw-b), 0.45);

  --shadow-sm: 0 2px 6px rgba(0, 0, 0, 0.35);
  --shadow-md: 0 8px 24px -4px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 16px 40px -8px rgba(0, 0, 0, 0.65);
  --shadow-xl: 0 25px 65px -12px rgba(0, 0, 0, 0.85);
}

[data-theme="light"] {
  color-scheme: light;
}

body {
  margin: 0;
  font-family: var(--font-body);
  background-color: var(--bg-canvas);
  color: var(--text-main);
  letter-spacing: -0.01em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  transition: background-color var(--duration-slow) ease, color var(--duration-slow) ease;
}

h1, h2, h3, h4, h5, h6, .logo, .brand-font {
  font-family: var(--font-heading);
  letter-spacing: -0.025em;
  color: var(--text-primary);
}

code, pre, .mono, .editor, .tabs, .terminal, .cli-output, .cli-input {
  font-family: var(--font-mono);
}

a {
  color: inherit;
  transition: color var(--duration-fast) ease;
}

/* Fluid Heading Scale */
h1 {
  font-size: clamp(2.2rem, 1.4rem + 4.2vw, 5.25rem);
  line-height: 1.15;
}

h2 {
  font-size: clamp(1.85rem, 1.2rem + 3.2vw, 4.25rem);
  line-height: 1.18;
}

h3 {
  font-size: clamp(1.35rem, 1.1rem + 1.2vw, 1.75rem);
  line-height: 1.25;
}

/* Accessible Focus Rings */
:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
  border-radius: var(--radius-xs);
}

/* ==========================================================================
   3. PERSIAN RTL TYPOGRAPHY & LOGICAL ORIENTATION (Vazirmatn Engine)
   ========================================================================== */
body.rtl-mode,
[dir="rtl"] {
  font-family: var(--font-persian);
  direction: rtl;
  text-align: start;
  letter-spacing: normal;
}

body.rtl-mode h1,
body.rtl-mode h2,
body.rtl-mode h3,
body.rtl-mode h4,
body.rtl-mode .logo,
body.rtl-mode .brand-font {
  font-family: var(--font-persian);
  letter-spacing: 0 !important;
  font-weight: 800;
  line-height: 1.3;
}

body.rtl-mode h1 i,
body.rtl-mode h2 i,
body.rtl-mode .hero h1 i,
body.rtl-mode .hero h1 .shimmer-text {
  font-family: var(--font-persian) !important;
  font-style: normal !important;
  font-weight: 800 !important;
  letter-spacing: 0 !important;
  margin-inline-start: 0.16em !important;
  margin-inline-end: 0 !important;
  padding-inline-end: 0;
  white-space: normal;
}

body.rtl-mode .hero p:not(.eyebrow),
body.rtl-mode .contact-lead,
body.rtl-mode .about-lead {
  font-family: var(--font-persian);
  line-height: 1.85;
  text-align: start;
}

body.rtl-mode .logo small {
  letter-spacing: 1px;
}

/* LTR Preservation for Code & CLI */
body.rtl-mode .ide,
body.rtl-mode .editor-container,
body.rtl-mode .editor-code,
body.rtl-mode .terminal,
body.rtl-mode .cli-container,
body.rtl-mode .cli-output,
body.rtl-mode .cli-prompt-line,
body.rtl-mode .ide-tabs,
body.rtl-mode .ide-header,
body.rtl-mode .win-titlebar,
body.rtl-mode .win-left-section,
body.rtl-mode .win-right-section,
body.rtl-mode .win-controls,
body.rtl-mode .win-tab,
body.rtl-mode .matrix-sys-id,
body.rtl-mode .matrix-meta-val,
body.rtl-mode .matrix-code-track {
  direction: ltr !important;
  text-align: left !important;
}

/* ==========================================================================
   4. HEADER & NAVIGATION (Glassmorphism & Touch Targets)
   ========================================================================== */
header {
  height: 86px;
  position: absolute;
  inset-block-start: 0;
  inset-inline: 7%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  z-index: 20;
}

.logo {
  font-size: 26px;
  font-weight: 900;
  letter-spacing: -2px;
  text-decoration: none;
  display: inline-block;
  min-height: 44px;
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
}

.logo span, .orange {
  color: var(--primary);
  text-shadow: 0 0 12px var(--primary-glow);
}

.logo small {
  display: block;
  font-size: 8px;
  letter-spacing: 2.5px;
  color: var(--text-muted);
  font-weight: 600;
  margin-block-start: 2px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-lg, 24px);
}

.nav-links a {
  text-decoration: none;
  font-size: 11px;
  letter-spacing: 1.5px;
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  padding-inline: var(--space-xs, 4px);
  position: relative;
  transition: color var(--duration-fast) ease;
}

.nav-links a::after {
  content: '';
  position: absolute;
  inset-block-end: 8px;
  inset-inline: 0;
  height: 2px;
  background: var(--primary);
  box-shadow: 0 0 8px var(--primary-glow);
  transform: scaleX(0);
  transition: transform var(--duration-normal) var(--ease-out-expo);
}

.nav-links a:hover {
  color: var(--text-primary);
}

.nav-links a:hover::after {
  transform: scaleX(1);
}

/* Header Controls & Action Buttons */
.header-controls {
  display: flex;
  align-items: center;
  gap: 12px;
}

.hdr-btn {
  background: var(--bg-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-size: 11px;
  font-family: var(--font-mono);
  padding: 8px 14px;
  min-height: 44px;
  min-width: 44px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  box-shadow: var(--shadow-sm);
  transition: background var(--duration-fast) ease, 
              border-color var(--duration-fast) ease, 
              color var(--duration-fast) ease, 
              transform var(--duration-fast) var(--ease-snappy);
}

.hdr-btn:hover {
  background: var(--bg-card-hover);
  color: var(--primary);
  border-color: var(--border-active);
  transform: translateY(-1px);
}

.hdr-btn:active {
  transform: scale(0.96);
}

.hdr-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

.hdr-btn b {
  color: var(--primary);
}

#audio-toggle.active {
  background: rgba(var(--primary-raw-r), var(--primary-raw-g), var(--primary-raw-b), 0.15);
  border-color: var(--primary);
  color: var(--text-primary);
  box-shadow: 0 0 16px var(--primary-glow);
}

/* Audio Wave Visualizer - 100% Compositor (scaleY) */
.audio-waves {
  display: inline-flex;
  align-items: flex-end;
  gap: 2.5px;
  height: 12px;
}

.audio-waves i {
  width: 2.5px;
  height: 12px;
  background: var(--primary);
  border-radius: 1px;
  transform: scaleY(0.25);
  transform-origin: bottom center;
  transition: transform var(--duration-fast) ease;
  will-change: transform;
}

#audio-toggle.active .audio-waves i:nth-child(1) {
  animation: wavePulse 0.5s ease-in-out infinite alternate;
}
#audio-toggle.active .audio-waves i:nth-child(2) {
  animation: wavePulse 0.35s ease-in-out infinite alternate 0.15s;
}
#audio-toggle.active .audio-waves i:nth-child(3) {
  animation: wavePulse 0.45s ease-in-out infinite alternate 0.3s;
}

@keyframes wavePulse {
  0% { transform: scaleY(0.2); }
  100% { transform: scaleY(1); }
}

/* Color Accent Dots with 44x44px Touch Target */
.color-picker {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 8px;
  background: var(--bg-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  min-height: 44px;
}

.color-dot {
  position: relative;
  width: 14px;
  height: 14px;
  border-radius: var(--radius-full);
  cursor: pointer;
  border: 2px solid transparent;
  transition: transform var(--duration-fast) var(--ease-bounce), border-color var(--duration-fast) ease;
}

/* Hit Target Expander to >= 44x44px */
.color-dot::before {
  content: '';
  position: absolute;
  inset: -15px;
  border-radius: var(--radius-full);
}

.color-dot:hover {
  transform: scale(1.3);
}

.color-dot.active {
  border-color: var(--color-white);
  transform: scale(1.2);
}

.dot-orange { background: var(--color-accent-orange); box-shadow: 0 0 8px var(--color-accent-orange); }
.dot-blue { background: var(--color-accent-blue); box-shadow: 0 0 8px var(--color-accent-blue); }
.dot-green { background: var(--color-accent-green); box-shadow: 0 0 8px var(--color-accent-green); }

/* ==========================================================================
   5. HERO SECTION & CALL-TO-ACTIONS
   ========================================================================== */
.hero {
  min-height: 100svh;
  padding: clamp(100px, 22vh, 160px) clamp(16px, 8vw, 100px) clamp(40px, 10vh, 80px);
  position: relative;
  background: radial-gradient(circle at 75% 45%, rgba(var(--primary-raw-r), var(--primary-raw-g), var(--primary-raw-b), 0.12), transparent 45%), var(--bg-canvas);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.hero:after {
  content: '';
  position: absolute;
  inset: 0;
  opacity: .07;
  background-image: radial-gradient(var(--color-white) .6px, transparent .8px);
  background-size: 5px 5px;
  pointer-events: none;
}

.eyebrow, .chapter {
  color: var(--primary);
  font-weight: 700;
  font-size: 11px;
  letter-spacing: 2.2px;
  text-transform: uppercase;
}

.hero h1 {
  margin-block: clamp(14px, 2.5vh, 24px);
  position: relative;
  z-index: 1;
  word-break: normal;
  overflow-wrap: break-word;
}

.hero i, h2 i {
  font-family: Georgia, 'Playfair Display', serif;
  font-weight: 400;
  color: var(--primary);
  font-style: italic;
}

.hero h1 i,
.hero h1 .shimmer-text {
  display: inline-block;
  vertical-align: baseline;
  letter-spacing: -0.02em;
  margin-inline-start: 0.15em;
  padding-inline-end: 0.08em;
  white-space: nowrap;
}

.hero p:not(.eyebrow) {
  max-width: 540px;
  color: var(--text-secondary);
  line-height: 1.75;
  font-size: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  position: relative;
  z-index: 1;
}

.actions {
  display: flex;
  gap: var(--space-md, 20px);
  align-items: center;
  margin-block-start: clamp(24px, 4vh, 36px);
  position: relative;
  z-index: 1;
  flex-wrap: wrap;
}

.button {
  padding: 16px 28px;
  min-height: 48px;
  background: var(--primary);
  color: var(--primary-fg, var(--color-charcoal));
  text-decoration: none;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1px;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  box-shadow: var(--shadow-md), 0 8px 25px var(--primary-glow);
  transition: background-color var(--duration-fast) ease, 
              transform var(--duration-fast) var(--ease-out-expo), 
              box-shadow var(--duration-fast) ease;
}

.button:hover {
  background: var(--primary-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg), 0 12px 35px var(--primary-glow);
}

.button:active {
  transform: scale(0.97);
}

.button:focus-visible {
  outline: 2px solid var(--primary-light);
  outline-offset: 3px;
}

.text-link {
  font-size: 13px;
  color: var(--text-secondary);
  text-decoration: none;
  padding: 12px 16px;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  border-radius: var(--radius-sm);
  transition: color var(--duration-fast) ease, background var(--duration-fast) ease;
  font-weight: 600;
}

.text-link:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 16px;
  min-height: 44px;
  background: var(--bg-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  font-size: 11px;
  letter-spacing: 0.5px;
  color: var(--text-secondary);
  margin-block-start: clamp(24px, 4vh, 35px);
  width: fit-content;
  box-shadow: var(--shadow-sm);
}

.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
  background: var(--color-terminal-green);
  position: relative;
  display: inline-block;
  box-shadow: 0 0 8px var(--color-terminal-green);
}

.pulse-dot:after {
  content: '';
  position: absolute;
  inset: -3px;
  border-radius: var(--radius-full);
  border: 1.5px solid var(--color-terminal-green);
  animation: pulse-ring 2s cubic-bezier(0.215, 0.61, 0.355, 1) infinite;
}

@keyframes pulse-ring {
  0% { transform: scale(0.6); opacity: 0.9; }
  100% { transform: scale(2.4); opacity: 0; }
}

.scroll {
  position: absolute;
  inset-block-end: 30px;
  inset-inline-start: clamp(16px, 8vw, 100px);
  color: var(--text-muted);
  font-size: 10px;
  letter-spacing: 2px;
  font-family: var(--font-mono);
}

/* ==========================================================================
   6. METRICS HUD (Engineering Milestones Bar)
   ========================================================================== */
.metrics-hud {
  padding-block: clamp(32px, 5vh, 44px);
  padding-inline: clamp(16px, 8vw, 100px);
  background: linear-gradient(180deg, var(--bg-canvas) 0%, var(--bg-surface) 50%, var(--bg-canvas) 100%);
  border-block-start: 1px solid var(--border-active);
  border-block-end: 1px solid var(--border-subtle);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.05), var(--shadow-lg);
  position: relative;
  z-index: 2;
}

.metrics-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-lg, 24px);
  max-width: 1200px;
  margin-inline: auto;
}

.metric-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
  min-width: 180px;
  text-align: start;
}

.metric-number {
  font-family: var(--font-heading);
  font-size: clamp(2.4rem, 1.8rem + 2.5vw, 3.75rem);
  font-weight: 900;
  line-height: 1;
  color: var(--text-primary);
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.metric-number .counter {
  background: linear-gradient(135deg, var(--color-white) 30%, var(--color-accent-orange-light) 75%, var(--primary) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 0 16px rgba(var(--primary-raw-r), var(--primary-raw-g), var(--primary-raw-b), 0.4));
}

.metric-symbol {
  color: var(--primary);
  font-size: 0.55em;
  font-weight: 800;
  text-shadow: 0 0 10px var(--primary-glow);
}

.metric-label {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 1.5px;
  font-weight: 600;
  text-transform: uppercase;
}

.metric-sep {
  width: 1px;
  height: 48px;
  background: var(--border-subtle);
}

/* ==========================================================================
   7. IDE & INTERACTIVE CLI TERMINAL (Fluent Glass Window Chrome)
   ========================================================================== */
.ide-wrap {
  padding-block: clamp(60px, 12vh, 120px);
  padding-inline: clamp(16px, 8vw, 100px);
  min-height: 100vh;
  background: var(--bg-surface);
  display: grid;
  place-items: center;
  position: relative;
}

.ide {
  width: min(1080px, 100%);
  min-height: 520px;
  display: grid;
  grid-template-columns: 54px 1fr;
  position: relative;
  background: var(--bg-glass-heavy);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-xl), 0 0 35px var(--primary-glow);
  transition: transform var(--duration-slow) var(--ease-out-expo), 
              box-shadow var(--duration-slow) ease;
}

.ide:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl), 0 0 50px var(--primary-glow);
}

.ide-header.win-titlebar {
  grid-column: 1 / -1;
  height: 42px;
  background: rgba(30, 31, 37, 0.98);
  border-block-end: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-inline-start: 10px;
  user-select: none;
  direction: ltr !important;
  text-align: left !important;
}

.win-left-section {
  display: flex;
  align-items: center;
  gap: 10px;
  height: 100%;
}

.win-app-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 2px;
}

.win-tabs {
  display: flex;
  align-items: flex-end;
  height: 100%;
}

.win-tab {
  height: 34px;
  margin-block-start: 8px;
  background: var(--bg-surface);
  color: var(--text-primary);
  border-block-start: 2px solid var(--primary);
  border-inline: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  padding-inline: 14px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 11.5px;
  font-family: var(--font-mono);
  font-weight: 500;
}

.win-tab-file-icon {
  color: var(--color-accent-blue);
  font-weight: 800;
  font-size: 10px;
  background: rgba(56, 189, 248, 0.15);
  padding: 1px 4px;
  border-radius: 3px;
}

.win-tab-close {
  font-size: 11px;
  color: var(--text-muted);
  border-radius: 3px;
  padding: 2px 5px;
  cursor: pointer;
  min-width: 24px;
  min-height: 24px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all var(--duration-fast) ease;
}

.win-tab-close:hover {
  background: rgba(255, 255, 255, 0.15);
  color: var(--text-primary);
}

.win-window-title {
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 0.3px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  padding-inline: 8px;
}

.win-right-section {
  display: flex;
  align-items: center;
  height: 100%;
  gap: 10px;
}

.win-controls {
  display: flex;
  align-items: center;
  height: 100%;
}

.win-btn {
  width: 44px;
  height: 100%;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  padding: 0;
  transition: background-color var(--duration-fast) ease, color var(--duration-fast) ease;
}

.win-btn:hover {
  background: rgba(255, 255, 255, 0.12);
  color: var(--color-white);
}

.win-btn.win-close:hover {
  background: var(--color-error) !important;
  color: var(--color-white) !important;
}

.copy-btn {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-size: 11px;
  padding: 6px 14px;
  min-height: 44px; min-width: 44px; padding: 10px 18px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all var(--duration-fast) ease;
}

.copy-btn:hover {
  background: var(--primary);
  color: var(--primary-fg, var(--color-black));
  border-color: var(--primary);
}

.side {
  padding-block-start: 60px;
  text-align: center;
  color: var(--text-muted);
  line-height: 2.8;
  border-inline-end: 1px solid var(--border-subtle);
  font-size: 14px;
  user-select: none;
}

.editor-container {
  padding: 24px 28px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.editor-code {
  font-size: clamp(11.5px, 1.25vw, 14.5px);
  line-height: 1.75;
  white-space: pre-wrap;
  color: var(--color-gray-200);
}

.terminal {
  margin-block-start: 24px;
  color: var(--color-terminal-green);
  border-block-start: 1px solid var(--border-subtle);
  padding-block-start: 14px;
  font-size: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.cli-container {
  grid-column: 2;
  display: none;
  padding: 20px 25px;
  min-height: 380px;
  color: var(--color-terminal-green);
  font-size: 13px;
  line-height: 1.6;
}

.cli-container.active {
  display: block;
}

.cli-output {
  white-space: pre-wrap;
  margin-block-end: 15px;
}

.cli-prompt-line {
  display: flex;
  align-items: center;
  gap: 8px;
}

.cli-prompt-label {
  color: var(--primary);
  font-weight: 700;
}

.cli-input {
  background: transparent;
  border: none;
  outline: none;
  color: var(--text-primary);
  font-size: 13px;
  flex: 1;
  caret-color: var(--primary);
}

/* Syntax Highlighting */
.syn-kw { color: var(--primary-light); font-weight: 600; }
.syn-str { color: var(--color-terminal-green-light); }
.syn-key { color: var(--color-syntax-key); }
.syn-num { color: var(--color-syntax-num); }
.syn-com { color: var(--color-syntax-com); font-style: italic; }

/* ==========================================================================
   8. CORE & CANVAS SECTION
   ========================================================================== */
.core {
  min-height: 100vh;
  padding: clamp(80px, 16vh, 160px) clamp(16px, 8vw, 100px);
  position: relative;
  overflow: hidden;
  background: radial-gradient(circle at 75% 50%, rgba(var(--primary-raw-r), var(--primary-raw-g), var(--primary-raw-b), 0.1), transparent 40%);
}

.core canvas {
  position: absolute;
  inset-inline-end: 8%;
  inset-block-start: 15%;
  width: min(580px, 50vw);
  height: min(580px, 50vw);
  max-width: 85vw;
  max-height: 85vw;
  cursor: crosshair;
}

.core-sub {
  position: absolute;
  inset-block-end: 12%;
  inset-inline-start: clamp(16px, 8vw, 100px);
  font-size: 11px;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

/* ==========================================================================
   9. ABOUT SECTION & PILLARS GRID
   ========================================================================== */
.about {
  background: var(--primary);
  color: var(--text-on-accent);
  padding: clamp(80px, 16vh, 160px) clamp(16px, 10vw, 120px);
  min-height: 85vh;
  transition: background-color var(--duration-slow) ease;
}

.about .chapter {
  color: var(--text-on-accent-subtle);
  font-weight: 800;
}

.about h2 {
  font-size: clamp(2.5rem, 1.8rem + 4.5vw, 6rem);
  color: var(--text-on-accent);
}

.about-lead {
  max-width: 740px;
  margin-block-start: clamp(30px, 5vh, 50px);
  margin-inline-start: clamp(0px, 15vw, 25%);
  font-size: clamp(1.15rem, 1rem + 0.8vw, 1.625rem);
  line-height: 1.6;
  font-weight: 500;
  color: var(--text-on-accent-lead);
}

.pillars-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 240px), 1fr));
  gap: var(--space-md, 20px);
  margin-block-start: clamp(40px, 6vh, 60px);
  padding-block-start: clamp(30px, 4vh, 40px);
  border-block-start: 2px solid rgba(0, 0, 0, 0.15);
}

.pillar-card {
  background: rgba(0, 0, 0, 0.08);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  padding: 24px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(0, 0, 0, 0.1);
  transition: transform var(--duration-fast) var(--ease-out-expo), 
              background-color var(--duration-fast) ease,
              box-shadow var(--duration-fast) ease;
  position: relative;
}

.pillar-card:hover {
  background: rgba(0, 0, 0, 0.15);
  transform: translateY(-4px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.pillar-card strong {
  display: block;
  font-size: 18px;
  margin-block-end: 8px;
  color: var(--text-on-accent);
}

.pillar-card p {
  margin: 0;
  font-size: 13.5px;
  color: var(--text-on-accent-lead);
  line-height: 1.55;
}

/* ==========================================================================
   10. FEATURED WORK RAIL & PROJECT CARDS
   ========================================================================== */
.work {
  padding-block: clamp(60px, 12vh, 120px);
  padding-inline-start: clamp(16px, 8vw, 100px);
  padding-inline-end: 0;
  overflow: hidden;
  background: var(--bg-canvas);
  position: relative;
}

.head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  padding-inline-end: clamp(16px, 8vw, 100px);
  gap: var(--space-md, 20px);
  flex-wrap: wrap;
}

.head h2 {
  margin: 0;
}

.rail-controls {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-block-end: 8px;
}

.rail-nav-btn {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  background: var(--bg-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-medium);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: transform var(--duration-fast) var(--ease-bounce), 
              background-color var(--duration-fast) ease, 
              border-color var(--duration-fast) ease,
              box-shadow var(--duration-fast) ease;
  box-shadow: var(--shadow-sm);
  user-select: none;
}

.rail-nav-btn:hover {
  background: var(--primary);
  color: var(--primary-fg, var(--color-black));
  border-color: var(--primary);
  transform: scale(1.08);
  box-shadow: var(--shadow-md), 0 0 20px var(--primary-glow);
}

.rail-nav-btn:hover svg {
  stroke: var(--primary-fg, var(--color-black));
}

.rail-nav-btn:active {
  transform: scale(0.92);
}

.rail-hint {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--text-muted);
  letter-spacing: 0.5px;
  margin-block-start: 10px;
}

.rail-hint-icon {
  color: var(--primary);
  font-size: 14px;
  font-weight: 700;
}

.rail {
  display: flex;
  gap: 30px;
  width: 100%;
  max-width: 100%;
  overflow-x: auto;
  overflow-y: hidden;
  scroll-behavior: smooth;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  padding-block: 35px;
  padding-inline-end: clamp(16px, 8vw, 100px);
  cursor: grab;
  user-select: none;
  scrollbar-width: thin;
  scrollbar-color: var(--primary) rgba(255, 255, 255, 0.05);
}

.rail::-webkit-scrollbar {
  height: 6px;
}

.rail::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.04);
  border-radius: var(--radius-full);
  margin-inline-end: clamp(16px, 8vw, 100px);
}

.rail::-webkit-scrollbar-thumb {
  background: var(--primary);
  border-radius: var(--radius-full);
  box-shadow: 0 0 10px var(--primary-glow);
}

.rail.is-dragging {
  cursor: grabbing;
  scroll-snap-type: none;
  scroll-behavior: auto;
}

.project {
  flex: 0 0 min(72vw, 500px);
  width: min(72vw, 500px);
  scroll-snap-align: start;
  background: var(--bg-card);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 26px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  cursor: pointer;
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}

.project:hover {
  border-color: var(--border-active);
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl), 0 0 30px var(--primary-glow);
}

.visual {
  height: 280px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background: linear-gradient(135deg, var(--color-accent-orange-deep) 0%, var(--primary) 100%);
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-md);
}

.visual:after {
  content: '';
  position: absolute;
  width: 260px;
  height: 260px;
  border: 1px solid rgba(255, 214, 200, 0.25);
  border-radius: 50%;
  inset-inline-end: -70px;
  inset-block-end: -70px;
}

.visual.ai {
  background: linear-gradient(135deg, var(--color-accent-blue-deep) 0%, var(--color-accent-blue-vivid) 100%);
}

.visual.lab {
  background: linear-gradient(135deg, var(--color-accent-yellow-dark) 0%, var(--color-accent-yellow) 100%);
}

.visual strong {
  font-size: 64px;
  font-weight: 900;
  line-height: 1;
}

.visual small {
  letter-spacing: 2px;
  z-index: 1;
  font-weight: 700;
}

.meta {
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 1px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-block-start: 18px;
}

.project h3 {
  font-size: 26px;
  margin-block: 10px 8px;
}

.project p:not(.meta) {
  line-height: 1.65;
  color: var(--text-secondary);
  font-size: 14px;
  margin: 0 0 12px;
}

.tech-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-block-start: 14px;
}

.tech-badge {
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.5px;
  padding: 4px 10px;
  border-radius: var(--radius-xs);
  background: var(--bg-input);
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
}

.project-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 10px;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.status-indicator {
  width: 6px;
  height: 6px;
  border-radius: var(--radius-full);
}

.status-dev { background: var(--color-accent-orange-light); box-shadow: 0 0 8px var(--color-accent-orange-light); }
.status-live { background: var(--color-terminal-green); box-shadow: 0 0 8px var(--color-terminal-green); }
.status-lab { background: var(--color-accent-blue-light); box-shadow: 0 0 8px var(--color-accent-blue-light); }

.view-case-study {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-block-start: 16px;
  font-size: 12px;
  color: var(--primary);
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  letter-spacing: 0.5px;
  transition: gap var(--duration-fast) ease;
}

.view-case-study:hover {
  gap: 10px;
}

/* ==========================================================================
   11. MORPHING INTERLUDE & THE LAB CARDS
   ========================================================================== */
.morph {
  min-height: 85vh;
  background: var(--color-cream);
  color: var(--text-on-light);
  padding: clamp(80px, 16vh, 160px) clamp(16px, 8vw, 100px);
  position: relative;
  overflow: hidden;
}

.shapes {
  position: absolute;
  inset-inline-end: 8%;
  inset-block-start: 12%;
  width: 45%;
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 12px;
  transform: rotate(17deg);
}

.shapes i {
  aspect-ratio: 1;
  background: var(--primary);
  border-radius: 50%;
  animation: p 4s ease-in-out infinite;
  will-change: transform, border-radius;
}

.shapes i:nth-child(3n) {
  background: var(--color-charcoal-elevated);
  transform: scale(.6);
}

@keyframes p {
  50% { transform: scale(.4); border-radius: 6px; }
}

.morph h2 {
  margin-block-start: 20vh;
  font-size: clamp(2.5rem, 1.8rem + 4vw, 5.75rem);
  color: var(--text-on-light);
}

.labsec {
  padding: clamp(80px, 16vh, 160px) clamp(16px, 8vw, 100px);
  min-height: 85vh;
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 60px;
  background: radial-gradient(circle at 75% 30%, rgba(23, 36, 48, 0.8), transparent 40%);
}

.lab-desc {
  color: var(--text-muted);
  line-height: 1.6;
  max-width: 380px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  align-items: center;
  perspective: 900px;
}

.cards article {
  height: 290px;
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  padding: 24px;
  color: var(--primary);
  font-size: 12px;
  transform: rotateY(-10deg) rotateX(5deg);
  background: linear-gradient(145deg, var(--bg-surface-elevated), var(--bg-canvas));
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all var(--duration-slow) var(--ease-out-expo);
}

.cards article:hover {
  transform: rotateY(0) rotateX(0) translateY(-10px);
  border-color: var(--primary);
  box-shadow: var(--shadow-xl), 0 0 30px var(--primary-glow);
}

.cards article:nth-child(2) {
  transform: translateY(25px);
}

.cards b {
  display: block;
  color: var(--text-primary);
  font-size: 18px;
  margin-block-start: 12px;
}

.card-desc {
  color: var(--text-muted);
  font-size: 11px;
  margin-block-start: 8px;
}

/* ==========================================================================
   12. CONTACT HUB & SOCIAL SHOWCASE
   ========================================================================== */
.contact {
  min-height: 90vh;
  background: var(--primary);
  color: var(--text-on-accent);
  padding: clamp(80px, 16vh, 160px) clamp(16px, 8vw, 100px);
  position: relative;
  transition: background-color var(--duration-slow) ease;
}

.contact .chapter {
  color: var(--text-on-accent-subtle);
  font-weight: 800;
}

.contact h2 {
  font-size: clamp(2.8rem, 2rem + 5vw, 6.75rem);
  color: var(--text-on-accent);
  margin-block-end: 20px;
}

.contact-lead {
  max-width: 540px;
  font-size: 17px;
  line-height: 1.65;
  color: var(--text-on-accent-contact);
}

.contact-hub {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 40px;
  align-items: center;
  margin-block-start: 45px;
}

.contact-actions {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.email-box {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(0, 0, 0, 0.35);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(0, 0, 0, 0.2);
  border-radius: var(--radius-md);
  padding: 12px 18px;
  color: var(--color-charcoal-elevated);
  font-weight: 600;
  font-family: var(--font-mono);
  font-size: 14px;
}

.email-btn {
  background: var(--color-charcoal-card);
  color: var(--text-primary);
  border: none;
  padding: 10px 18px;
  min-height: 44px;
  border-radius: var(--radius-sm);
  font-size: 11px;
  font-family: var(--font-body);
  font-weight: 700;
  letter-spacing: 0.5px;
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-snappy);
}

.email-btn:hover {
  background: var(--color-gray-800);
  transform: translateY(-2px);
}

.social-showcase {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  width: 100%;
  margin-block-start: 10px;
}

.social-card {
  position: relative;
  display: flex;
  align-items: center;
  gap: 15px;
  padding: 16px 20px;
  min-height: 72px;
  background: rgba(13, 14, 18, 0.88);
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: var(--radius-lg);
  text-decoration: none;
  color: var(--text-main);
  overflow: hidden;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: var(--shadow-md);
  cursor: pointer;
  transition: all var(--duration-slow) var(--ease-out-expo);
  will-change: transform, box-shadow;
}

.social-card:hover {
  transform: translateY(-5px) scale(1.02);
  background: rgba(18, 20, 26, 0.96);
}

.social-card.social-tg:hover {
  border-color: var(--color-social-tg);
  box-shadow: var(--shadow-lg), 0 0 32px rgba(42, 171, 238, 0.38);
}

.social-card.social-ig:hover {
  border-color: var(--color-social-ig);
  box-shadow: var(--shadow-lg), 0 0 32px rgba(220, 39, 67, 0.4);
}

.social-icon-orb {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  flex-shrink: 0;
  transition: all var(--duration-slow) var(--ease-out-expo);
}

.tg-orb {
  background: linear-gradient(135deg, rgba(42, 171, 238, 0.22) 0%, rgba(34, 158, 217, 0.1) 100%);
  border: 1px solid rgba(42, 171, 238, 0.45);
  color: var(--color-social-tg);
  box-shadow: 0 0 16px rgba(42, 171, 238, 0.3);
}

.ig-orb {
  background: linear-gradient(135deg, rgba(240, 148, 51, 0.2) 0%, rgba(220, 39, 67, 0.22) 50%, rgba(188, 24, 136, 0.2) 100%);
  border: 1px solid rgba(220, 39, 67, 0.5);
  color: var(--color-social-ig);
  box-shadow: 0 0 16px rgba(220, 39, 67, 0.35);
}

.social-content {
  flex: 1;
  min-width: 0;
}

.social-top-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-block-end: 3px;
}

.social-network-title {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--text-muted);
}

.social-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 9px;
  font-family: var(--font-mono);
  font-weight: 700;
  padding: 2px 7px;
  border-radius: var(--radius-full);
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.tg-badge {
  background: rgba(42, 171, 238, 0.14);
  color: var(--color-social-tg);
  border: 1px solid rgba(42, 171, 238, 0.3);
}

.ig-badge {
  background: rgba(220, 39, 67, 0.14);
  color: var(--color-social-ig);
  border: 1px solid rgba(220, 39, 67, 0.3);
}

.social-handle {
  font-family: var(--font-heading);
  font-size: 15px;
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: -0.01em;
  margin-block-end: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.social-sub {
  font-size: 11px;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.social-arrow {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  flex-shrink: 0;
  transition: all var(--duration-fast) ease;
}

.contact-card {
  position: relative;
  inset-inline-end: auto;
  inset-block-end: auto;
  margin-inline: auto;
}

.card {
  background: var(--bg-card-contrast);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  padding: 30px;
  width: 280px;
  box-shadow: var(--shadow-lg);
  color: var(--text-primary);
}

.card span {
  display: block;
  font-size: 11px;
  letter-spacing: 1px;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.card b {
  display: block;
  font-size: 40px;
  font-weight: 900;
  margin-block: 15px;
  color: var(--primary);
}

.card small {
  display: block;
  font-size: 10px;
  color: var(--text-faint);
  letter-spacing: 1.5px;
}

/* ==========================================================================
   13. MODAL DRAWER & AI FLOATING WIDGET
   ========================================================================== */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(5, 5, 8, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  z-index: 99990;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--duration-slow) ease;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

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

.modal-content {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-lg);
  max-width: 720px;
  width: 100%;
  max-height: 85vh;
  overflow-y: auto;
  padding: 35px;
  box-shadow: var(--shadow-xl), 0 0 40px var(--primary-glow);
  transform: scale(0.94) translateY(20px);
  transition: transform var(--duration-slow) var(--ease-out-expo);
  position: relative;
}

.modal-backdrop.open .modal-content {
  transform: scale(1) translateY(0);
}

.modal-close {
  position: absolute;
  inset-block-start: 20px;
  inset-inline-end: 20px;
  background: rgba(255, 255, 255, 0.08);
  border: none;
  color: var(--text-primary);
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  cursor: pointer;
  font-size: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--duration-fast) ease;
}

.modal-close:hover {
  background: var(--primary);
  color: var(--primary-fg, var(--color-black));
}

.modal-header h3 {
  font-size: 32px;
  margin-block: 10px 6px;
  color: var(--text-primary);
}

.modal-subtitle {
  color: var(--primary);
  font-size: 13px;
  letter-spacing: 1px;
  font-weight: 700;
  text-transform: uppercase;
}

.modal-body {
  margin-block-start: 24px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.modal-section h4 {
  font-size: 16px;
  margin: 0 0 8px;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.modal-section h4:before {
  content: '▸';
  color: var(--primary);
}

.modal-section p {
  margin: 0;
  color: var(--text-secondary);
  line-height: 1.65;
  font-size: 14px;
}

.modal-status-highlight {
  color: var(--primary);
  font-weight: 700;
}

/* AI Floating Widget */
.ai-widget-badge {
  position: fixed;
  inset-block-end: 25px;
  inset-inline-start: 25px;
  background: var(--bg-glass-heavy);
  border: 1px solid var(--border-active);
  box-shadow: var(--shadow-lg), 0 0 20px var(--primary-glow);
  padding: 10px 20px;
  min-height: 46px;
  border-radius: var(--radius-full);
  color: var(--text-primary);
  font-size: 12px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  z-index: 9980;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  transition: all var(--duration-normal) var(--ease-out-expo);
}

.ai-widget-badge:hover {
  transform: translateY(-4px) scale(1.04);
  border-color: var(--primary);
  box-shadow: var(--shadow-xl), 0 0 30px var(--primary-glow);
}

.ai-pulse {
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
  background: var(--primary);
  animation: pulse-ring 2s infinite;
}

.ai-chat-window {
  position: fixed;
  inset-block-end: 85px;
  inset-inline-start: 25px;
  width: min(390px, 92vw);
  background: var(--bg-surface-elevated);
  backdrop-filter: blur(25px);
  -webkit-backdrop-filter: blur(25px);
  border: 1px solid var(--border-active);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl), 0 0 35px var(--primary-glow);
  z-index: 9985;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
  transform: translateY(20px) scale(0.95);
  transition: all var(--duration-normal) var(--ease-out-expo);
}

.ai-chat-window.open {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0) scale(1);
}

.ai-chat-header {
  padding: 14px 18px;
  background: rgba(22, 23, 29, 0.85);
  border-block-end: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
  font-weight: 700;
}

.ai-chat-close-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 16px;
  min-width: 44px;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-xs);
  transition: color var(--duration-fast) ease;
}

.ai-chat-close-btn:hover {
  color: var(--text-primary);
}

.ai-chat-logs {
  padding: 16px;
  height: 260px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
  font-size: 13px;
  line-height: 1.5;
}

.ai-msg {
  padding: 10px 14px;
  border-radius: var(--radius-md);
  max-width: 85%;
}

.ai-msg.bot {
  background: var(--bg-card);
  color: var(--color-gray-200);
  align-self: flex-start;
  border-inline-start: 3px solid var(--primary);
}

.ai-msg.user {
  background: var(--primary);
  color: var(--primary-fg, var(--color-black));
  align-self: flex-end;
  font-weight: 600;
}

.ai-suggestions {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 8px 16px 14px;
}

.ai-chip {
  font-size: 11px;
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  padding: 8px 16px; min-height: 44px; display: inline-flex; align-items: center;
  border-radius: var(--radius-full);
  cursor: pointer;
  color: var(--text-secondary);
  transition: all var(--duration-fast) ease;
}

.ai-chip:hover {
  background: var(--primary);
  color: var(--primary-fg, var(--color-black));
  border-color: var(--primary);
}

.ai-chat-input-bar {
  display: flex;
  border-block-start: 1px solid var(--border-subtle);
  padding: 10px 14px;
  gap: 8px;
}

.ai-chat-input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--text-primary);
  font-size: 13px;
  min-height: 44px;
}

.ai-chat-send {
  background: var(--primary);
  border: none;
  color: var(--primary-fg, var(--color-black));
  font-weight: 700;
  font-size: 11px;
  padding: 8px 16px;
  min-height: 44px; min-width: 44px; padding: 10px 18px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: opacity var(--duration-fast) ease;
}

.ai-chat-send:hover {
  opacity: 0.9;
}

/* ==========================================================================
   14. FOOTER & FOOTER META
   ========================================================================== */
footer {
  padding-block: clamp(60px, 10vh, 100px) clamp(25px, 4vh, 40px);
  padding-inline: clamp(16px, 8vw, 100px);
  background: var(--color-charcoal-dark);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.foot {
  font-weight: 900;
  font-size: clamp(60px, 18vw, 260px);
  letter-spacing: -.12em;
  line-height: .75;
  user-select: none;
}

.foot span {
  color: var(--primary);
  text-shadow: 0 0 25px var(--primary-glow);
}

.footer-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 15px;
  border-block-start: 1px solid var(--border-subtle);
  padding-block-start: 25px;
  margin-block-start: 40px;
  font-size: 11px;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.live-clock {
  color: var(--primary);
}

.back-to-top-link {
  text-decoration: none;
  color: var(--text-muted);
  padding: 10px 16px; min-height: 44px; min-width: 44px; display: inline-flex; align-items: center; justify-content: center;
  border-radius: var(--radius-xs);
  transition: color var(--duration-fast) ease;
}

.back-to-top-link:hover {
  color: var(--text-primary);
}

/* ==========================================================================
   15. MATRIX TELEMETRY HUD (Compositor-Only Animations)
   ========================================================================== */
.matrix-identity-badge {
  display: flex;
  flex-direction: column;
  gap: 8px;
  background: transparent !important;
  border: none !important;
  max-width: 580px;
  width: 100%;
  margin-block-end: 22px;
  position: relative;
  user-select: none;
  font-family: var(--font-mono);
  z-index: 3;
}

.matrix-laser-horizon {
  position: relative;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, var(--primary) 0%, rgba(var(--primary-raw-r), var(--primary-raw-g), var(--primary-raw-b), 0.4) 45%, transparent 95%);
  box-shadow: 0 0 10px var(--primary-glow);
  margin-block-end: 4px;
  overflow: hidden;
}

.matrix-laser-horizon::after {
  content: '';
  position: absolute;
  inset-block-start: -1px;
  inset-inline-start: 0;
  width: 30px;
  height: 3px;
  background: var(--color-white);
  box-shadow: 0 0 12px var(--primary), 0 0 20px var(--color-white);
  animation: laserSpark 4s cubic-bezier(0.4, 0, 0.2, 1) infinite;
  will-change: transform;
}

@keyframes laserSpark {
  0% { transform: translateX(-30px); opacity: 0; }
  10% { opacity: 1; }
  90% { opacity: 1; }
  100% { transform: translateX(580px); opacity: 0; }
}

.matrix-code-stream {
  width: 100%;
  overflow: hidden;
  white-space: nowrap;
  mask-image: linear-gradient(90deg, transparent 0%, var(--color-black) 8%, var(--color-black) 90%, transparent 100%);
  -webkit-mask-image: linear-gradient(90deg, transparent 0%, var(--color-black) 8%, var(--color-black) 90%, transparent 100%);
  opacity: 0.7;
}

.matrix-code-track {
  display: inline-block;
  font-size: 9.5px;
  letter-spacing: 2px;
  color: var(--primary);
  text-shadow: 0 0 8px var(--primary-glow);
  animation: matrixCodeDrift 24s linear infinite;
  will-change: transform;
}

@keyframes matrixCodeDrift {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

.matrix-badge-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 10.5px;
  letter-spacing: 1.5px;
  color: var(--primary);
  padding: 4px 0 6px;
  border-block-end: 1px dashed rgba(var(--primary-raw-r), var(--primary-raw-g), var(--primary-raw-b), 0.2);
}

.matrix-beacon-group {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.matrix-radar-beacon {
  position: relative;
  width: 12px;
  height: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.m-radar-dot {
  width: 6px;
  height: 6px;
  border-radius: var(--radius-full);
  background: var(--primary);
  box-shadow: 0 0 10px var(--primary);
  z-index: 2;
}

.m-radar-ring {
  position: absolute;
  inset: -1px;
  border: 1px solid var(--primary);
  border-radius: var(--radius-full);
  opacity: 0.8;
  animation: radarWave 2s cubic-bezier(0.1, 0.85, 0.25, 1) infinite;
  pointer-events: none;
  will-change: transform, opacity;
}

.m-radar-ring.r-2 {
  animation-delay: 0.9s;
}

@keyframes radarWave {
  0% { transform: scale(0.6); opacity: 0.95; }
  100% { transform: scale(2.8); opacity: 0; }
}

/* Micro Signal Equalizer Waveform - 100% Compositor (scaleY) */
.matrix-eq-bars {
  display: inline-flex;
  align-items: flex-end;
  gap: 2.5px;
  height: 12px;
  margin-inline-start: 2px;
}

.matrix-eq-bars i {
  display: inline-block;
  width: 2px;
  height: 12px;
  background: var(--primary);
  border-radius: 1px;
  box-shadow: 0 0 6px var(--primary-glow);
  transform-origin: bottom center;
  will-change: transform;
}

.matrix-eq-bars i:nth-child(1) { animation: eqWave 1.1s ease-in-out infinite alternate; }
.matrix-eq-bars i:nth-child(2) { animation: eqWave 0.8s ease-in-out infinite alternate 0.2s; }
.matrix-eq-bars i:nth-child(3) { animation: eqWave 1.4s ease-in-out infinite alternate 0.4s; }
.matrix-eq-bars i:nth-child(4) { animation: eqWave 0.9s ease-in-out infinite alternate 0.1s; }

@keyframes eqWave {
  0% { transform: scaleY(0.18); opacity: 0.5; }
  100% { transform: scaleY(1); opacity: 1; }
}

.matrix-sys-telemetry {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.matrix-sys-id {
  color: var(--text-muted);
  font-size: 9.5px;
  letter-spacing: 2px;
}

.matrix-sys-tag {
  font-size: 8.5px;
  letter-spacing: 1px;
  color: var(--color-charcoal-dark);
  background: var(--primary);
  font-weight: 800;
  padding: 1px 5px;
  border-radius: 2px;
}

.matrix-badge-core {
  display: flex;
  align-items: center;
  padding-block: 2px;
}

.matrix-info {
  display: flex;
  flex-direction: column;
  gap: 4px;
  width: 100%;
}

.matrix-role-row {
  display: flex;
  align-items: center;
  gap: 6px;
}

.matrix-role-prompt {
  color: var(--primary);
  font-weight: 900;
  font-size: 13px;
  text-shadow: 0 0 8px var(--primary-glow);
}

.matrix-role {
  font-size: 11px;
  color: var(--text-secondary);
  letter-spacing: 1.8px;
  text-transform: uppercase;
  font-weight: 600;
}

.matrix-name-row {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.matrix-bracket {
  color: var(--primary);
  font-size: 26px;
  font-weight: 900;
  text-shadow: 0 0 12px var(--primary);
  line-height: 1;
}

.matrix-name {
  font-size: clamp(24px, 5.5vw, 36px);
  font-weight: 900;
  letter-spacing: 2px;
  color: var(--color-white);
  text-shadow: 0 0 20px var(--primary-glow);
  background: linear-gradient(135deg, var(--color-white) 40%, var(--primary) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
  line-height: 1.1;
}

.matrix-pill-one {
  font-size: 9.5px;
  letter-spacing: 1.5px;
  font-weight: 900;
  color: var(--color-charcoal-dark);
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  padding: 4px 10px;
  border-radius: var(--radius-xs);
  box-shadow: 0 0 16px var(--primary-glow);
  text-transform: uppercase;
  display: inline-flex;
  align-items: center;
  transition: transform var(--duration-fast) var(--ease-bounce), box-shadow var(--duration-fast) ease;
}

.matrix-pill-one:hover {
  transform: scale(1.06);
  box-shadow: 0 0 25px var(--primary);
}

.matrix-badge-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 9.5px;
  color: var(--text-muted);
  letter-spacing: 1.2px;
  border-block-start: 1px dashed rgba(255, 255, 255, 0.1);
  padding-block-start: 6px;
  flex-wrap: wrap;
}

.matrix-meta-label {
  color: var(--primary);
  font-weight: 700;
}

.matrix-meta-val {
  color: var(--text-primary);
}

.matrix-meta-sep {
  color: rgba(var(--primary-raw-r), var(--primary-raw-g), var(--primary-raw-b), 0.4);
  font-weight: 700;
}

/* ==========================================================================
   16. RESPONSIVE BREAKPOINTS & MOBILE ADAPTATIONS
   ========================================================================== */
@media (max-width: 950px) {
  .nav-links { display: none; }
  header { inset-inline: 6%; }

  .hero {
    padding-block: 104px 40px !important;
    padding-inline: 6% !important;
    min-height: auto !important;
    justify-content: flex-start !important;
  }

  .ide-wrap {
    padding-block: 45px 35px;
    padding-inline: 4%;
    min-height: auto;
  }

  .ide {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .side { display: none; }

  .core {
    min-height: 520px;
    padding-block: 70px;
    padding-inline: 6%;
  }

  .core canvas {
    position: static;
    width: 100%;
    height: 320px;
    margin-block-start: 25px;
  }

  .about {
    padding-block: 80px;
    padding-inline: 6%;
  }

  .about-lead {
    margin-inline-start: 0;
    margin-block-start: 24px;
    font-size: 18px;
  }

  .work {
    padding-inline-start: 6%;
  }

  .project {
    width: 85vw;
    max-width: 400px;
  }

  .labsec {
    display: block;
    padding-block: 80px;
    padding-inline: 6%;
  }

  .cards {
    grid-template-columns: 1fr;
    margin-block-start: 40px;
    gap: 20px;
  }

  .cards article {
    height: 230px;
    transform: none !important;
  }

  .contact {
    padding-block: 80px;
    padding-inline: 6%;
  }

  .contact-hub {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  footer {
    padding-inline-start: 6%;
  }
}

@media (max-width: 600px) {
  .hero {
    padding-block: 94px 25px !important;
    padding-inline: 5% !important;
  }

  .hero h1 {
    font-size: clamp(26px, 7.5vw, 40px) !important;
    line-height: 1.22 !important;
  }

  .matrix-identity-badge {
    margin-block-end: 14px !important;
  }

  .matrix-name {
    font-size: 22px !important;
  }

  .matrix-bracket {
    font-size: 22px !important;
  }

  .matrix-sys-tag {
    display: none;
  }

  .ide-wrap {
    padding-inline: 2.5% !important;
  }

  .win-window-title {
    display: none !important;
  }

  .social-showcase {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .metric-item {
    min-width: 100%;
    text-align: center;
  }

  .metric-number {
    justify-content: center;
  }
}

/* ==========================================================================
   17. RENDERING VIRTUALIZATION & PERFORMANCE OPTIMIZATIONS
   ========================================================================== */
.ide-wrap,
.core,
.about,
.work,
.labsec,
.contact,
footer {
  content-visibility: auto;
  contain-intrinsic-size: 1px 700px;
}

.ambient-glow,
.particle,
.matrix-laser-horizon::after,
.m-radar-ring {
  will-change: transform, opacity;
  transform: translateZ(0);
}

/* ==========================================================================
   Window State Modifiers & Tactile Components
   ========================================================================== */
.win-minimized {
  display: none !important;
}

.ide.ide-minimized {
  min-height: auto !important;
}

.ide.win-maximized {
  max-width: 100% !important;
  width: 100% !important;
}

/* Scroll Progress Indicator - 100% Compositor (scaleX) */
.scroll-progress {
  position: fixed;
  inset-block-start: 0;
  inset-inline-start: 0;
  width: 100%;
  height: 3px;
  background: var(--primary);
  box-shadow: 0 0 10px var(--primary-glow);
  transform-origin: left center;
  transform: scaleX(0);
  z-index: 10002;
  pointer-events: none;
  will-change: transform;
}

body.rtl-mode .scroll-progress,
[dir="rtl"] .scroll-progress {
  transform-origin: right center;
}

/* Toast Notification Notice */
.toast-notice {
  position: fixed;
  inset-block-end: 28px;
  inset-inline: 0;
  margin-inline: auto;
  width: fit-content;
  max-width: 90vw;
  background: var(--bg-glass-heavy);
  color: var(--text-primary);
  border: 1px solid var(--border-active);
  box-shadow: var(--shadow-xl), 0 0 24px var(--primary-glow);
  padding: 12px 24px;
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 10px;
  z-index: 10000;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  opacity: 0;
  transform: translateY(20px) scale(0.95);
  pointer-events: none;
  transition: transform var(--duration-normal) var(--ease-out-expo), opacity var(--duration-normal) ease;
}

.toast-notice.show {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}

.toast-icon {
  color: var(--color-terminal-green);
  font-size: 16px;
  font-weight: bold;
}

/* ==========================================================================
   Comprehensive Accessible Component Interactive States (:hover, :focus-visible, :active, :disabled)
   ========================================================================== */
/* Standardized Focus Rings */
.button:focus-visible,
.text-link:focus-visible,
.hdr-btn:focus-visible,
.color-dot:focus-visible,
.win-btn:focus-visible,
.copy-btn:focus-visible,
.rail-nav-btn:focus-visible,
.project:focus-visible,
.pillar-card:focus-visible,
.cards article:focus-visible,
.email-btn:focus-visible,
.social-card:focus-visible,
.modal-close:focus-visible,
.ai-widget-badge:focus-visible,
.ai-chat-close-btn:focus-visible,
.ai-chip:focus-visible,
.ai-chat-send:focus-visible,
.ai-chat-input:focus-visible,
.cli-input:focus-visible,
.back-to-top-link:focus-visible,
.nav-links a:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
}

/* Tactile Active States */
.button:active,
.hdr-btn:active,
.copy-btn:active,
.email-btn:active,
.rail-nav-btn:active,
.modal-close:active,
.ai-chat-send:active,
.ai-widget-badge:active,
.back-to-top-link:active {
  transform: scale(0.96);
}

.project:active,
.pillar-card:active,
.social-card:active {
  transform: scale(0.99);
}

/* Standardized Disabled States */
button:disabled,
.button:disabled,
.hdr-btn:disabled,
.win-btn:disabled,
.copy-btn:disabled,
.email-btn:disabled,
.rail-nav-btn:disabled,
.ai-chat-send:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

/* High-Contrast Light Mode UI Enhancements */
[data-theme="light"] .modal-content {
  background: var(--bg-surface);
  color: var(--text-primary);
  box-shadow: var(--shadow-xl);
}

[data-theme="light"] .modal-header h3,
[data-theme="light"] .modal-section h4 {
  color: var(--text-primary);
}

[data-theme="light"] .modal-section p {
  color: var(--text-secondary);
}

[data-theme="light"] .modal-close {
  background: rgba(0, 0, 0, 0.06);
  color: var(--text-primary);
}

[data-theme="light"] .ai-chat-window {
  background: var(--bg-surface);
  border-color: var(--border-medium);
}

[data-theme="light"] .ai-chat-input {
  color: var(--text-primary);
}

[data-theme="light"] .ai-chat-header {
  color: var(--text-primary);
}

[data-theme="light"] .social-card {
  background: var(--bg-surface);
  border-color: var(--border-medium);
  color: var(--text-main);
}

[data-theme="light"] .social-handle {
  color: var(--text-primary);
}

[data-theme="light"] .social-sub {
  color: var(--text-secondary);
}

/* October 2026 usability review: stable layout, readable content and native controls. */
:root, [data-theme="dark"] { --text-faint: #969aa6; }
body { overflow-wrap: break-word; }
button, input { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button:focus-visible, a:focus-visible, input:focus-visible, [tabindex="0"]:focus-visible {
  outline: 3px solid var(--primary);
  outline-offset: 5px;
}
main:focus { outline: none; }
[id] { scroll-margin-block-start: 112px; }
.skip-link {
  position: fixed; inset-block-start: 12px; inset-inline-start: 16px;
  transform: translateY(-200%); padding: 14px 20px; border-radius: 8px;
  background: #f4f1ea; color: #15161c; font-weight: 700; z-index: 100001;
}
.skip-link:focus { transform: none; }
/* Skipping offscreen sections changed anchor positions and produced blank captures. */
.ide-wrap, .core, .about, .work, .labsec, .contact, footer {
  content-visibility: visible; contain-intrinsic-size: none;
}
/* Never couple access to essential content to an animation completing. */
.reveal { opacity: 1 !important; transform: none !important; }
.word-inner { opacity: 1 !important; transform: none !important; filter: none !important; }
header:not(.x-nav) {
  position: fixed; inset: 0 0 auto; height: 82px; padding-inline: clamp(20px, 5vw, 80px);
  background: rgba(6, 6, 8, .94); border-bottom: 1px solid rgba(255,255,255,.09);
  backdrop-filter: blur(16px); gap: 24px; z-index: 10000;
}
[data-theme="light"] header:not(.x-nav) { background: rgba(248,249,252,.96); border-color: #d7dae2; }
.navigation-panel { display: flex; align-items: center; gap: clamp(20px, 3vw, 48px); }
.nav-links { gap: 10px; }
.nav-links a { font-size: 12px; min-height: 44px; padding-inline: 8px; }
.menu-toggle { display: none; }
.header-controls { gap: 8px; flex-shrink: 0; }
.color-picker { gap: 4px; padding: 0; border: 0; background: transparent; box-shadow: none; }
.color-dot {
  width: 36px; height: 44px; padding: 0; border: 0; border-radius: 8px;
  background: transparent; box-shadow: none; display: grid; place-items: center;
}
.color-dot::before {
  position: static; width: 14px; height: 14px; border-radius: 50%;
  background: var(--dot-color); box-shadow: 0 0 10px var(--dot-color);
}
.dot-orange { --dot-color: #ff5a1f; }
.dot-blue { --dot-color: #38bdf8; }
.dot-green { --dot-color: #10b981; }
.color-dot.active, .color-dot:hover { transform: none; }
.color-dot.active::before { outline: 2px solid var(--text-primary); outline-offset: 3px; }
.ai-widget-badge { font-family: var(--font-body); }
.ai-chip { color: var(--text-primary); min-height: 36px; text-align: start; cursor: pointer; }
.ai-chat-window { max-height: min(640px, calc(100dvh - 112px)); }
.ai-chat-logs { min-height: 100px; flex: 1 1 auto; overflow-y: auto; overscroll-behavior: contain; }
.ai-chat-input { min-width: 0; font-size: 16px; min-height: 44px; }
.ai-chat-send { min-height: 44px; }
.modal-backdrop:not(.open), .ai-chat-window:not(.open) { visibility: hidden; }
.modal-backdrop.open, .ai-chat-window.open { visibility: visible; }
.modal-close { transition: background-color 160ms ease, transform 160ms ease; }
.ai-chat-window { transition: opacity 180ms ease, transform 180ms ease; }
.ai-chip { transition: color 160ms ease, background-color 160ms ease, border-color 160ms ease; }
.modal-content { max-height: calc(100dvh - 40px); overscroll-behavior: contain; }
.modal-header { padding-inline-end: 44px; }
.modal-content p { line-height: 1.8; }
.email-box { background: #15161c; color: #f4f1ea; border-color: #373941; flex-wrap: wrap; gap: 12px; }
.email-address { color: #f4f1ea; text-decoration: none; direction: ltr; unicode-bidi: isolate; overflow-wrap: anywhere; }
.email-address:hover { text-decoration: underline; text-underline-offset: 4px; }
.email-btn { color: #f4f1ea; background: #292b34; }
.contact-card small { color: #a4a8b5; }
.morph .chapter { color: #9e3410; }
.morph .orange, .morph .shimmer-text {
  color: #ae3912; background: none; -webkit-text-fill-color: currentColor; text-shadow: none;
}
.contact h2 .shimmer-text {
  color: #16161b; background: none; -webkit-text-fill-color: currentColor; text-shadow: none;
}
.lab-tool-link { display: inline-flex; align-items: center; min-height: 44px; color: var(--primary); text-underline-offset: 5px; font-weight: 700; }
.cards article:has(.lab-tool-link) { height: auto; min-height: 230px; }
.social-content, .social-top-row { min-width: 0; }
.social-top-row { flex-wrap: wrap; gap: 8px; }
.social-handle { overflow-wrap: anywhere; }
body.rtl-mode .matrix-name, body.rtl-mode .hero h1 { letter-spacing: normal; }
.toast-notice { max-width: calc(100vw - 32px); white-space: normal; text-align: center; }
@media (max-width: 1100px) and (min-width: 951px) {
  .navigation-panel { gap: 12px; }
  .nav-links { gap: 0; }
  header:not(.x-nav) { padding-inline: 24px; gap: 14px; }
}
@media (max-width: 950px) {
  header:not(.x-nav) { height: 76px; padding-inline: 5%; gap: 12px; }
  .logo { font-size: 23px; flex-shrink: 0; }
  .logo small { font-size: 7px; letter-spacing: 1.4px; }
  .has-navigation .menu-toggle { display: inline-flex; align-items: center; justify-content: center; padding: 10px; }
  .navigation-panel {
    position: absolute; inset-inline: 5%; inset-block-start: calc(100% + 8px);
    display: flex; flex-direction: column; align-items: stretch; gap: 12px; padding: 16px;
    background: var(--bg-glass-heavy); border: 1px solid var(--border-medium); border-radius: 14px;
    box-shadow: var(--shadow-lg); max-height: calc(100dvh - 100px); overflow-y: auto;
  }
  .has-navigation header:not(.menu-open) .navigation-panel { display: none; }
  .nav-links { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
  .nav-links a { font-size: 14px; padding: 10px; }
  .color-picker { align-self: flex-start; }
  html:not(.has-navigation) .hero { padding-block-start: 300px !important; }
  .color-dot { width: 44px; }
  .hdr-btn { min-width: 44px; min-height: 44px; padding-inline: 10px; }
  .hero { padding-block-start: 116px !important; }
  .hero p:not(.eyebrow), .project p:not(.meta), .pillar-card p, .card-desc { font-size: 16px; line-height: 1.8; }
  .metrics-container { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 28px 16px; }
  .metric-item { min-width: 0; padding: 0; }
  .metric-sep { display: none; }
  .metric-number { font-size: 36px; }
  .metric-label { font-size: 10px; line-height: 1.6; letter-spacing: .4px; }
  .ide-wrap { padding-block: 48px; }
  .about, .labsec, .contact { min-height: 0; padding-block: 64px; }
  .morph { min-height: 480px; padding-block: 64px; }
  .morph h2 { margin-block-start: 160px; }
  .ai-widget-badge { inset-inline-start: 16px; inset-block-end: max(16px, env(safe-area-inset-bottom)); padding: 10px 14px; }
  .ai-chat-window { inset-inline: 16px; width: auto; inset-block-end: max(78px, calc(env(safe-area-inset-bottom) + 68px)); }
  .modal-backdrop { padding: 12px; }
  .modal-content { padding: 28px 20px; max-height: calc(100dvh - 24px); }
  .modal-close { inset-block-start: 12px; inset-inline-end: 12px; }
  .scroll { position: static; display: block; margin-block-start: 24px; }
  .status-pill { max-width: 100%; font-size: 12px; line-height: 1.6; }
  .contact .social-showcase { grid-template-columns: 1fr; }
  footer { padding-block-end: 100px; }
}
@media (max-width: 600px) {
  #audio-prefix, #audio-state { display: none; }
  #audio-toggle { justify-content: center; }
  .header-controls { gap: 6px; }
  .hero { padding-block-start: 108px !important; }
  .hero h1 { font-size: clamp(30px, 8vw, 44px) !important; }
  .matrix-sys-telemetry, .matrix-badge-meta { display: none; }
  .matrix-badge-top { margin-block-end: 12px; }
  .matrix-code-stream { opacity: .5; }
  .matrix-name { font-size: clamp(18px, 5.2vw, 24px) !important; }
  .matrix-name-row { flex-wrap: wrap; }
  .matrix-pill-one { display: none; }
  .matrix-identity-badge { margin-block-end: 24px !important; }
  .email-box { padding: 16px; }
  .email-btn { width: 100%; font-size: 13px; }
  .copy-code-btn { white-space: nowrap; font-size: 11px; padding-inline: 10px; }
  .x-container { overflow-wrap: break-word; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .ambient-glow, .matrix-code-stream, .click-shockwave { display: none; }
}