/* ==========================================================================
   CSS Variables & Theming
   ========================================================================== */
   :root {
    /* DARK MODE (Default) */
    --bg-base: #060608;
    --bg-surface: #101115;
    --bg-surface-hover: #16181d;
    --border-color: rgba(255, 255, 255, 0.08);
    --border-highlight: rgba(255, 255, 255, 0.15);
    
    --text-main: #F3F4F6;
    --text-muted: #9CA3AF;
    
    --accent-primary: #FF5A00; /* Turbo Orange */
    --accent-hover: #FF7B33;
    --accent-glow: rgba(255, 90, 0, 0.15);
    
    --success: #34D399;
  
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
  
    --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 24px 48px rgba(0, 0, 0, 0.4);
    
    --grid-line: rgba(255, 255, 255, 0.03);
  }
  
  html[data-theme="light"] {
    /* LIGHT MODE */
    --bg-base: #F8F9FA;
    --bg-surface: #FFFFFF;
    --bg-surface-hover: #F3F4F6;
    --border-color: rgba(0, 0, 0, 0.08);
    --border-highlight: rgba(0, 0, 0, 0.15);
    
    --text-main: #111827;
    --text-muted: #4B5563;
    
    --accent-primary: #E04D00;
    --accent-hover: #FF5A00;
    --accent-glow: rgba(224, 77, 0, 0.1);
    
    --success: #059669;
  
    --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 24px 48px rgba(0, 0, 0, 0.08);
    
    --grid-line: rgba(0, 0, 0, 0.03);
  }
  
  /* ==========================================================================
     Reset & Base Styles
     ========================================================================== */
  * {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
  }
  
  html {
    scroll-behavior: smooth;
    scroll-padding-top: 120px;
  }
  
  body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background-color: var(--bg-base);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
  }
  
  h1, h2, h3, h4 {
    font-family: 'Outfit', system-ui, -apple-system, sans-serif;
    line-height: 1.1;
    color: var(--text-main);
  }
  
  a {
    color: inherit;
    text-decoration: none;
  }
  
  .container {
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 24px;
  }
  
  /* Technical Grid Background */
  .tech-grid {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    background-size: 40px 40px;
    background-image: 
      linear-gradient(to right, var(--grid-line) 1px, transparent 1px),
      linear-gradient(to bottom, var(--grid-line) 1px, transparent 1px);
    mask-image: radial-gradient(circle at center 20%, black, transparent 80%);
    -webkit-mask-image: radial-gradient(circle at center 20%, black, transparent 80%);
  }
  
  /* ==========================================================================
     Floating Dock Navigation
     ========================================================================== */
  .nav-dock {
    position: fixed;
    top: 24px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: color-mix(in srgb, var(--bg-surface) 80%, transparent);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-color);
    border-radius: 100px;
    padding: 8px 16px;
    width: calc(100% - 48px);
    max-width: 900px;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
  }
  
  .nav-dock__brand {
    display: flex;
    align-items: center;
    gap: 10px;
    padding-left: 8px;
  }
  
  .nav-dock__logo {
    width: 24px;
    height: 24px;
    color: var(--accent-primary);
  }
  
  .nav-dock__title {
    font-family: 'Outfit', sans-serif;
    font-weight: 700;
    font-size: 1.1rem;
    letter-spacing: 0.5px;
  }
  
  .nav-dock__links {
    display: flex;
    gap: 24px;
  }
  
  .nav-dock__links a {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-muted);
    transition: color 0.2s;
  }
  
  .nav-dock__links a:hover {
    color: var(--text-main);
  }
  
  .nav-dock__actions {
    display: flex;
    align-items: center;
    gap: 12px;
  }

  .btn-icon.nav-toggle {
    display: none;
  }
  
  /* Theme Toggle Icon Logic */
  .theme-toggle .icon-moon,
  .theme-toggle .icon-sun {
    width: 18px;
    height: 18px;
    display: none;
  }
  
  html[data-theme="dark"] .theme-toggle .icon-sun {
    display: block;
  }
  
  html[data-theme="light"] .theme-toggle .icon-moon {
    display: block;
  }
  
  /* ==========================================================================
     Buttons
     ========================================================================== */
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 20px;
    font-size: 0.9rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.2s ease;
    border: 1px solid transparent;
  }
  
  .btn--primary {
    background-color: var(--accent-primary);
    color: #FFFFFF;
    box-shadow: 0 4px 12px var(--accent-glow);
  }
  
  .btn--primary:hover {
    background-color: var(--accent-hover);
    transform: translateY(-1px);
  }
  
  .btn--outline {
    background-color: transparent;
    color: var(--text-main);
    border: 1px solid var(--border-color);
  }
  
  .btn--outline:hover {
    background-color: var(--bg-surface-hover);
    border-color: var(--border-highlight);
  }
  
  .btn--large {
    padding: 14px 28px;
    font-size: 1rem;
  }
  
  .btn-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: transparent;
    border: 1px solid transparent;
    color: var(--text-main);
    cursor: pointer;
    transition: background 0.2s;
  }
  
  .btn-icon:hover {
    background: var(--bg-surface-hover);
  }

  .btn-icon svg {
    width: 18px;
    height: 18px;
  }

  .btn__icon {
    width: 18px;
    height: 18px;
    margin-right: 8px;
  }
  
  /* ==========================================================================
     Hero Section
     ========================================================================== */
  .hero {
    padding-top: 160px;
    padding-bottom: 80px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
  
  .hero__badge {
    display: inline-flex;
    align-items: center;
    padding: 6px 16px;
    border-radius: 100px;
    font-size: 0.85rem;
    font-weight: 600;
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    color: var(--text-muted);
    margin-bottom: 24px;
    box-shadow: var(--shadow-sm);
  }
  
  .hero__title {
    font-size: clamp(3rem, 6vw, 5rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 24px;
    max-width: 900px;
  }
  
  .hero__title span {
    color: var(--accent-primary);
    background: linear-gradient(135deg, var(--accent-primary), #FF8C00);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
  }
  
  .hero__desc {
    font-size: 1.1rem;
    color: var(--text-muted);
    max-width: 600px;
    margin-bottom: 32px;
  }
  
  .hero__meta {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    justify-content: center;
    margin-bottom: 40px;
  }
  
  .meta-tag {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-muted);
  }
  
  .meta-tag svg {
    width: 16px;
    height: 16px;
    color: var(--success);
  }
  
  .hero__actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    justify-content: center;
    margin-bottom: 64px;
  }

  .hero__actions--center {
    justify-content: center;
    margin-top: 32px;
    margin-bottom: 0;
  }
  
  /* App Window Mockup */
  .app-mockup {
    width: 100%;
    max-width: 1320px;
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    position: relative;
  }
  
  .app-mockup::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--radius-lg);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.1);
    pointer-events: none;
    z-index: 2;
  }
  
  html[data-theme="light"] .app-mockup::before {
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.6);
  }
  
  .app-mockup__header {
    height: 48px;
    background: var(--bg-base);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    padding: 0 16px;
    position: relative;
  }
  
  .app-mockup__dots {
    display: flex;
    gap: 8px;
  }
  
  .app-mockup__dots span {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--border-color);
  }
  
  .app-mockup__dots span:nth-child(1) { background: #FF5F56; }
  .app-mockup__dots span:nth-child(2) { background: #FFBD2E; }
  .app-mockup__dots span:nth-child(3) { background: #27C93F; }
  
  .app-mockup__title {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-muted);
    font-family: 'Inter', sans-serif;
  }
  
  .app-mockup__body img {
    width: 100%;
    display: block;
    border-bottom-left-radius: var(--radius-lg);
    border-bottom-right-radius: var(--radius-lg);
  }
  
  /* ==========================================================================
     Sections & Bento Grid
     ========================================================================== */
  .section {
    padding: 80px 0;
  }
  
  .section__header {
    margin-bottom: 48px;
    max-width: 600px;
  }
  
  .section__header--center {
    margin: 0 auto 48px;
    text-align: center;
  }
  
  .section__header h2 {
    font-size: clamp(2rem, 4vw, 2.5rem);
    margin-bottom: 16px;
    font-weight: 700;
  }
  
  .section__header p {
    font-size: 1.1rem;
    color: var(--text-muted);
  }
  
  /* Bento UI */
  .bento-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }
  
  .bento-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 32px;
    position: relative;
    overflow: hidden;
    transition: transform 0.3s ease, border-color 0.3s ease;
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-height: 200px;
  }
  
  .bento-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-highlight);
  }
  
  .bento-card--large {
    grid-column: span 2;
  }
  
  .bento-card__content h3 {
    font-size: 1.25rem;
    margin-bottom: 12px;
    font-weight: 600;
  }

  .bento-card__content {
    text-align: center;
  }
  
  .bento-card__content p {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.5;
  }
  
  .format-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    row-gap: 8px;
    justify-content: center;
    margin-top: 16px;
  }
  
  .format-tags span {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem;
    padding: 4px 8px;
    background: var(--bg-base);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-muted);
  }
  
  /* ==========================================================================
     Workflow Timeline
     ========================================================================== */
  .timeline {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    position: relative;
  }
  
  .timeline::before {
    content: '';
    position: absolute;
    top: 24px;
    left: 0;
    width: 100%;
    height: 1px;
    background: var(--border-color);
    z-index: 0;
  }
  
  .timeline__step {
    position: relative;
    z-index: 1;
    background: var(--bg-base);
    padding-top: 12px;
  }
  
  .timeline__number {
    width: 48px;
    height: 48px;
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Outfit', sans-serif;
    font-weight: 700;
    font-size: 1.2rem;
    color: var(--accent-primary);
    margin-bottom: 24px;
    box-shadow: 0 0 0 8px var(--bg-base);
  }
  
  .timeline__content h3 {
    margin-bottom: 12px;
    font-size: 1.2rem;
  }
  
  .timeline__content p {
    color: var(--text-muted);
    font-size: 0.95rem;
  }
  
  /* ==========================================================================
     Models Section (Terminal Style)
     ========================================================================== */
  .section-box {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 48px;
  }
  
  .section-box__text h2 {
    font-size: 2rem;
    margin-bottom: 16px;
  }
  
  .section-box__text p {
    color: var(--text-muted);
    margin-bottom: 32px;
    font-size: 1.05rem;
  }
  
  .code-block {
    background: #0D0D12;
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius-md);
    padding: 24px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85rem;
    line-height: 1.8;
    box-shadow: inset 0 2px 10px rgba(0,0,0,0.5);
  }
  
  html[data-theme="light"] .code-block {
    background: #1A1A24;
  }
  
  .code-line { margin-bottom: 4px; }
  .code-muted { color: #6B7280; }
  .code-accent { color: #FF5A00; }
  .code-text { color: #E5E7EB; }
  .code-success { color: #34D399; }
  
  /* ==========================================================================
     Bottom CTA & Footer
     ========================================================================== */
  .section-cta {
    text-align: center;
    padding: 100px 0;
    border-top: 1px solid var(--border-color);
    margin-top: 40px;
  }
  
  .section-cta h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 16px;
  }
  
  .section-cta p {
    color: var(--text-muted);
    font-size: 1.1rem;
  }
  
  .footer {
    border-top: 1px solid var(--border-color);
    padding: 48px 0;
    background: var(--bg-surface);
  }
  
  .footer__inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 24px;
  }
  
  .footer__brand strong {
    font-family: 'Outfit', sans-serif;
    font-size: 1.1rem;
    display: block;
    margin-bottom: 4px;
  }
  
  .footer__brand p {
    color: var(--text-muted);
    font-size: 0.9rem;
  }
  
  .footer__links {
    display: flex;
    gap: 24px;
  }
  
  .footer__links a {
    font-size: 0.9rem;
    color: var(--text-muted);
    font-weight: 500;
    transition: color 0.2s;
  }
  
  .footer__links a:hover {
    color: var(--text-main);
  }
  
  /* ==========================================================================
     Responsive Media Queries
     ========================================================================== */
  @media (max-width: 900px) {
    .nav-dock {
      width: calc(100% - 24px);
      padding: 8px 12px;
      gap: 10px;
      justify-content: space-between;
    }

    .btn-icon.nav-toggle {
      display: inline-flex;
    }

    .nav-dock__links {
      display: none;
      position: absolute;
      top: calc(100% + 10px);
      left: 0;
      right: 0;
      flex-direction: column;
      gap: 4px;
      padding: 8px;
      border-radius: 16px;
      border: 1px solid var(--border-color);
      background: color-mix(in srgb, var(--bg-surface) 92%, transparent);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      box-shadow: var(--shadow-sm);
    }

    .nav-dock__links.is-open {
      display: flex;
    }

    .nav-dock__links a {
      display: block;
      padding: 10px 12px;
      border-radius: 10px;
    }

    .nav-dock__links a:hover {
      background: var(--bg-surface-hover);
    }

    .nav-github {
      display: none;
    }
    
    .bento-grid {
      grid-template-columns: 1fr;
    }
    
    .bento-card--large {
      grid-column: span 1;
    }
  
    .timeline {
      grid-template-columns: 1fr;
      gap: 32px;
    }
  
    .timeline::before {
      top: 0;
      left: 24px;
      width: 1px;
      height: 100%;
    }
  
    .timeline__step {
      display: flex;
      gap: 24px;
      padding-top: 0;
      background: transparent;
    }
  
    .timeline__number {
      margin-bottom: 0;
      flex-shrink: 0;
      z-index: 2;
    }
  
    .section-box {
      grid-template-columns: 1fr;
      padding: 32px;
    }
  }
  
  @media (max-width: 600px) {
    .hero {
      padding-top: 120px;
    }

    .nav-dock__title {
      font-size: 1rem;
    }

    .nav-dock__actions .btn--primary {
      padding: 8px 12px;
      font-size: 0.85rem;
    }
    
    .hero__actions {
      flex-direction: column;
      width: 100%;
    }
    
    .hero__actions .btn {
      width: 100%;
    }
    
    .footer__inner {
      flex-direction: column;
      text-align: center;
    }
    
    .footer__links {
      justify-content: center;
      flex-wrap: wrap;
    }
  }