/*
  EvoCortexAI public site — Saturn Design System adoption.
  Tokens mirror Sources/SaturnDesign in EvoCortexAI/saturn-apple-platform:
  SaturnPalette (dark default), SaturnSpacingScale.standard,
  SaturnRadiusScale.standard, SaturnLayoutScale.standard.
  Static, dependency-free. No external fonts or frameworks.
*/

@layer reset, tokens, base, components, header, utilities;

@layer reset {
  *, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
  }

  html {
    color-scheme: dark;
    -webkit-text-size-adjust: 100%;
  }

  body {
    min-height: 100vh;
    font-family: var(--font-system);
    background: var(--bg);
    color: var(--text);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
  }

  img, svg {
    display: block;
    max-width: 100%;
  }

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

  button {
    font: inherit;
  }
}

@layer tokens {
  :root {
    --font-system: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", system-ui, sans-serif;

    --bg: #06090f;
    --bg-accent: #0f1724;
    --elevated: #171f2b;
    --text: #f0f7ff;
    --text-secondary: #adbac9;
    --accent: #2eb8ff;
    --success: #4cd180;
    --warning: #ffa633;
    --danger: #ff5961;
    --separator: rgba(209, 224, 240, 0.20);

    --card: rgba(23, 31, 43, 0.92);
    --card-strong: #171f2b;
    --surface-muted: rgba(255, 255, 255, 0.04);
    --border: var(--separator);
    --border-strong: rgba(46, 184, 255, 0.36);

    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 12px;
    --space-lg: 16px;
    --space-xl: 24px;

    --radius-control: 8px;
    --radius-card: 10px;
    --radius-panel: 16px;

    --page-padding: 24px;
    --detail-max: 760px;
    --content-max: 1280px;

    --header-height: 64px;
    --header-x: clamp(16px, 4vw, 48px);
    --header-bg: rgba(6, 9, 15, 0.86);
    --header-border: var(--separator);
    --header-text: rgba(240, 247, 255, 0.92);
    --header-muted: rgba(173, 186, 201, 0.9);

    --bg-alt: var(--bg-accent);
    --text-muted: var(--text-secondary);
    --accent-strong: #5cc8ff;
    --accent-warm: var(--warning);
    --nav-height: var(--header-height);
    --nav-bg: var(--header-bg);
    --surface-quiet: var(--surface-muted);

    color-scheme: dark;
  }
}

@layer base {
  .container {
    width: min(var(--content-max), calc(100% - (var(--page-padding) * 2)));
    margin-inline: auto;
  }

  .section {
    padding: 72px 0;
  }

  .section-header {
    font-size: clamp(1.75rem, 3.5vw, 2.5rem);
    font-weight: 600;
    letter-spacing: -0.03em;
    line-height: 1.1;
    margin-bottom: var(--space-md);
  }

  .section-sub,
  .lead {
    font-size: 1.05rem;
    color: var(--text-secondary);
    max-width: 40rem;
    line-height: 1.6;
  }

  .label {
    display: inline-block;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: var(--space-md);
  }

  h1 {
    font-size: clamp(2.1rem, 5vw, 3.2rem);
    font-weight: 650;
    letter-spacing: -0.04em;
    line-height: 1.05;
    margin-bottom: var(--space-lg);
  }

  h2 {
    font-size: 1.5rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    margin-bottom: var(--space-md);
  }

  h3 {
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: -0.01em;
  }

  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    min-height: 44px;
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-control);
    border: 1px solid transparent;
    font-family: inherit;
    font-size: 15px;
    font-weight: 600;
    line-height: 1;
    text-decoration: none;
    cursor: pointer;
    white-space: nowrap;
    transition: background 120ms ease, color 120ms ease, border-color 120ms ease, opacity 120ms ease;
  }

  .btn-primary {
    background: var(--accent);
    color: var(--bg);
  }

  .btn-primary:hover {
    background: color-mix(in srgb, var(--accent) 82%, white);
  }

  .btn-secondary {
    background: color-mix(in srgb, var(--accent) 12%, transparent);
    color: var(--accent);
    border-color: color-mix(in srgb, var(--accent) 22%, transparent);
  }

  .btn-secondary:hover {
    background: color-mix(in srgb, var(--accent) 18%, transparent);
  }

  .badge,
  .eyebrow {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-xs) var(--space-md);
    border-radius: var(--radius-control);
    border: 1px solid color-mix(in srgb, var(--accent) 22%, transparent);
    background: color-mix(in srgb, var(--accent) 12%, transparent);
    color: var(--accent);
    font-size: 12px;
    font-weight: 600;
    margin-bottom: var(--space-xl);
  }

  .eyebrow::before,
  .badge-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--success);
    content: "";
    flex-shrink: 0;
  }

  .card,
  .system-card,
  .platform-card,
  .plane-box,
  .metric-card,
  .benchmark-panel {
    background: var(--elevated);
    border: 1px solid var(--separator);
    border-radius: var(--radius-card);
    padding: var(--space-xl);
  }

  .card-title {
    font-size: 1.15rem;
    font-weight: 600;
    margin: var(--space-lg) 0 var(--space-md);
  }

  .card-desc,
  .system-desc,
  .platform-desc,
  .plane-desc {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.6;
  }

  .grid-3,
  .systems-grid,
  .platform-grid,
  .three-col {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--space-lg);
    margin-top: var(--space-xl);
  }

  .two-col {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-lg);
  }

  footer {
    border-top: 1px solid var(--separator);
    padding: var(--space-xl) 0;
    color: var(--text-secondary);
    font-size: 12px;
    background: var(--bg);
  }

  .footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-lg);
  }

  .footer-links {
    display: flex;
    gap: var(--space-xl);
    flex-wrap: wrap;
  }

  .footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
  }

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

@layer components {
  .page-header {
    padding: calc(var(--header-height) + 48px) 0 48px;
  }

  .hero {
    position: relative;
    isolation: isolate;
    overflow: hidden;
    padding: calc(var(--header-height) + 48px) 0 72px;
    background-image:
      linear-gradient(180deg, rgba(6, 9, 15, 0.72), rgba(6, 9, 15, 0.92)),
      linear-gradient(90deg, rgba(6, 9, 15, 0.94) 0%, rgba(6, 9, 15, 0.55) 55%, rgba(6, 9, 15, 0.7) 100%),
      url("/background.jpeg");
    background-size: cover;
    background-position: center;
  }

  .hero::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    background: radial-gradient(ellipse at 20% 40%, rgba(46, 184, 255, 0.08), transparent 50%);
  }

  .hero-copy,
  .hero__content {
    position: relative;
    z-index: 1;
    max-width: var(--detail-max);
  }

  .hero-headline,
  .hero h1,
  .hero__content h1 {
    font-size: clamp(2.4rem, 6vw, 4.2rem);
    font-weight: 650;
    letter-spacing: -0.045em;
    line-height: 1.02;
    max-width: 14ch;
    margin-bottom: 0;
  }

  .hero-subhead,
  .hero__lede {
    margin-top: var(--space-xl);
    max-width: 38rem;
    font-size: clamp(1.05rem, 2vw, 1.25rem);
    color: rgba(240, 247, 255, 0.9);
    line-height: 1.5;
  }

  .hero-support,
  .hero__sublede {
    margin-top: var(--space-lg);
    max-width: 36rem;
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.6;
  }

  .hero-actions,
  .hero__actions {
    margin-top: 32px;
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
  }

  .system-label,
  .platform-label,
  .plane-label {
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: var(--space-md);
  }

  .system-name,
  .platform-name,
  .plane-name {
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: var(--space-sm);
  }

  .system-card {
    height: 100%;
    display: flex;
    flex-direction: column;
  }

  .system-desc {
    flex: 1;
  }

  .plane-diagram {
    display: flex;
    flex-direction: column;
    gap: 0;
    max-width: 40rem;
    margin: var(--space-xl) auto;
  }

  .plane-arrow {
    text-align: center;
    color: var(--accent);
    font-size: 18px;
    line-height: 1;
    padding: var(--space-xs) 0;
    opacity: 0.7;
  }

  .plane-tech,
  .tech-stack {
    margin-top: var(--space-lg);
    padding-top: var(--space-md);
    border-top: 1px solid var(--separator);
    font-size: 12px;
    color: var(--text-secondary);
  }

  .prop-row,
  .method-row,
  .no-claim,
  .status-row {
    display: flex;
    gap: var(--space-lg);
    padding: var(--space-lg) 0;
    border-bottom: 1px solid var(--separator);
    align-items: flex-start;
  }

  .prop-row:last-child,
  .method-row:last-child,
  .no-claim:last-child,
  .status-row:last-child {
    border-bottom: none;
  }

  .prop-icon,
  .method-icon {
    width: 28px;
    height: 28px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-control);
    background: color-mix(in srgb, var(--accent) 12%, transparent);
    color: var(--accent);
    font-size: 13px;
    font-weight: 600;
  }

  .prop-body {
    font-size: 14px;
    line-height: 1.6;
  }

  .prop-title {
    font-weight: 600;
    margin-bottom: var(--space-xs);
  }

  .prop-desc {
    color: var(--text-secondary);
  }

  .status-row {
    justify-content: space-between;
    align-items: center;
    font-size: 14px;
  }

  .status-label {
    color: var(--text-secondary);
  }

  .status-value {
    font-weight: 500;
    text-align: right;
  }

  .dot-live,
  .dot-dev {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    display: inline-block;
    margin-right: 6px;
  }

  .dot-live { background: var(--success); }
  .dot-dev { background: color-mix(in srgb, var(--accent) 55%, transparent); }

  .law-box,
  .cta-box {
    background: var(--elevated);
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-panel);
    padding: 28px 32px;
  }

  .cta-box {
    text-align: center;
    margin-top: 32px;
  }

  .credibility {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    margin-top: var(--space-xl);
    color: var(--text-secondary);
    font-size: 14px;
  }

  .cred-item {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-xs) var(--space-md);
    border: 1px solid var(--separator);
    border-radius: var(--radius-control);
    background: var(--surface-muted);
  }

  .evidence-banner {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: var(--space-md);
    align-items: start;
    padding: var(--space-lg);
    margin-bottom: var(--space-xl);
    background: color-mix(in srgb, var(--warning) 10%, transparent);
    border: 1px solid color-mix(in srgb, var(--warning) 28%, transparent);
    border-radius: var(--radius-panel);
  }

  .evidence-mark {
    width: 10px;
    height: 10px;
    margin-top: 6px;
    border-radius: 50%;
    background: var(--warning);
  }

  .benchmark-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.25fr) minmax(280px, 0.75fr);
    gap: var(--space-lg);
  }

  .bar-chart { display: grid; gap: var(--space-md); }

  .bar-row {
    display: grid;
    grid-template-columns: minmax(9rem, 14rem) 1fr auto;
    gap: var(--space-md);
    align-items: center;
    font-size: 13px;
  }

  .bar-label { color: var(--text-secondary); }

  .bar-track {
    height: 8px;
    overflow: hidden;
    border-radius: 999px;
    background: var(--surface-muted);
  }

  .bar-fill {
    height: 100%;
    min-width: 4px;
    border-radius: inherit;
    background: var(--accent);
  }

  .bar-fill.is-warm { background: var(--warning); }

  .bar-value {
    color: var(--accent);
    font-variant-numeric: tabular-nums;
    white-space: nowrap;
  }

  .metric-list { display: grid; gap: var(--space-md); }

  .metric-card strong {
    display: block;
    margin-bottom: var(--space-xs);
    font-size: 13px;
  }

  .metric-card span {
    color: var(--accent);
    font-size: 15px;
    font-weight: 600;
    font-variant-numeric: tabular-nums;
  }

  .data-table-wrap { overflow-x: auto; padding: 0; }

  .data-table {
    width: 100%;
    min-width: 720px;
    border-collapse: collapse;
    font-size: 13px;
  }

  .data-table th,
  .data-table td {
    padding: 11px 12px;
    border-bottom: 1px solid var(--separator);
    text-align: left;
    vertical-align: top;
  }

  .data-table th {
    background: var(--surface-muted);
    color: var(--text-secondary);
    font-weight: 600;
  }

  .data-table .numeric {
    text-align: right;
    font-variant-numeric: tabular-nums;
  }

  .tier-pill {
    display: inline-flex;
    align-items: center;
    padding: 4px 8px;
    border-radius: var(--radius-control);
    border: 1px solid var(--separator);
    background: var(--surface-muted);
    font-size: 11px;
  }

  dialog {
    border: none;
    border-radius: var(--radius-panel);
    padding: 0;
    background: var(--elevated);
    box-shadow: 0 24px 64px rgba(0, 0, 0, 0.4);
    max-width: 420px;
    width: calc(100% - 32px);
    margin: auto;
  }

  dialog::backdrop {
    background: rgba(6, 9, 15, 0.72);
    backdrop-filter: blur(8px);
  }

  .modal-content { padding: var(--space-xl); }

  .icon {
    width: 28px;
    height: 28px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
    flex-shrink: 0;
  }

  .icon svg {
    width: 100%;
    height: 100%;
    stroke: currentColor;
    fill: none;
    stroke-width: 1.75;
    stroke-linecap: round;
    stroke-linejoin: round;
  }
}

@layer header {
  .site-header {
    position: sticky;
    top: 0;
    z-index: 5000;
    width: 100%;
    min-height: var(--header-height);
    background: var(--header-bg);
    border-bottom: 1px solid var(--header-border);
    backdrop-filter: blur(20px) saturate(140%);
    -webkit-backdrop-filter: blur(20px) saturate(140%);
  }

  .site-header__inner {
    width: min(1220px, calc(100vw - var(--header-x)));
    min-height: var(--header-height);
    margin: 0 auto;
    display: grid;
    grid-template-columns: minmax(180px, auto) 1fr auto;
    align-items: center;
    gap: clamp(16px, 2.5vw, 36px);
  }

  .site-brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--text);
    text-decoration: none;
  }

  .site-brand__mark {
    width: 24px;
    height: 24px;
    flex: 0 0 auto;
  }

  .site-brand__name {
    font-size: 17px;
    font-weight: 650;
    letter-spacing: -0.03em;
    line-height: 1;
    white-space: nowrap;
  }

  .site-nav {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: clamp(14px, 1.8vw, 24px);
    min-width: 0;
  }

  .site-nav a {
    color: var(--header-text);
    font-size: 14px;
    font-weight: 500;
    line-height: 1;
    text-decoration: none;
    white-space: nowrap;
    opacity: 0.88;
  }

  .site-nav a:hover,
  .site-nav a[aria-current="page"] {
    color: #fff;
    opacity: 1;
  }

  .site-actions {
    display: inline-flex;
    align-items: center;
    justify-content: flex-end;
    gap: var(--space-md);
  }

  .locale-switcher {
    height: 32px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 0 10px;
    border: 1px solid var(--separator);
    border-radius: var(--radius-control);
    background: var(--surface-muted);
    color: var(--header-muted);
    font-size: 12px;
    font-weight: 600;
  }

  .locale-switcher a {
    color: var(--header-muted);
    text-decoration: none;
  }

  .locale-switcher a:hover,
  .locale-switcher a[aria-current="page"] {
    color: var(--accent);
  }

  .locale-switcher__separator {
    color: rgba(240, 247, 255, 0.28);
  }

  .site-contact {
    min-height: 36px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0 16px;
    border-radius: var(--radius-control);
    border: 1px solid transparent;
    background: var(--accent);
    color: var(--bg);
    font-size: 14px;
    font-weight: 600;
    line-height: 1;
    text-decoration: none;
    white-space: nowrap;
  }

  .site-contact:hover {
    background: color-mix(in srgb, var(--accent) 85%, white);
  }

  .site-menu-toggle {
    display: none;
    width: 40px;
    height: 40px;
    min-width: 40px;
    min-height: 40px;
    padding: 0;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--separator);
    border-radius: var(--radius-control);
    background: var(--surface-muted);
    color: var(--text);
    cursor: pointer;
  }

  .site-menu-toggle span,
  .site-menu-toggle span::before,
  .site-menu-toggle span::after {
    width: 16px;
    height: 2px;
    display: block;
    border-radius: 999px;
    background: currentColor;
    content: "";
  }

  .site-menu-toggle span::before { transform: translateY(-6px); }
  .site-menu-toggle span::after { transform: translateY(4px); }

  .mobile-menu { display: none; }

  @media (max-width: 1023px) {
    .site-header__inner {
      grid-template-columns: minmax(0, 1fr) auto;
      gap: 12px;
    }

    .site-nav,
    .site-contact { display: none; }

    .site-menu-toggle { display: inline-flex; }

    .mobile-menu {
      position: absolute;
      top: calc(var(--header-height) + 8px);
      left: 16px;
      right: 16px;
      z-index: 4999;
      display: none;
      max-height: calc(100vh - var(--header-height) - 32px);
      overflow-y: auto;
      padding: var(--space-md);
      border: 1px solid var(--separator);
      border-radius: var(--radius-panel);
      background: color-mix(in srgb, var(--bg) 96%, var(--elevated));
      box-shadow: 0 24px 64px rgba(0, 0, 0, 0.45);
    }

    .mobile-menu.is-open {
      display: grid;
      gap: 4px;
    }

    .mobile-menu a {
      min-height: 44px;
      display: flex;
      align-items: center;
      padding: 0 var(--space-lg);
      border-radius: var(--radius-control);
      color: var(--text);
      font-size: 15px;
      font-weight: 600;
      text-decoration: none;
    }

    .mobile-menu a:hover,
    .mobile-menu a[aria-current="page"] {
      background: color-mix(in srgb, var(--accent) 10%, transparent);
    }

    .mobile-menu__contact {
      margin-top: var(--space-sm);
      justify-content: center;
      background: var(--accent);
      color: var(--bg) !important;
    }

    body.nav-open { overflow: hidden; }

    body.nav-open main {
      filter: brightness(0.55);
      pointer-events: none;
    }
  }
}

@layer utilities {
  @media (max-width: 768px) {
    .section { padding: 48px 0; }
    .two-col,
    .benchmark-grid { grid-template-columns: 1fr; }
    .status-row {
      flex-direction: column;
      align-items: flex-start;
      gap: 6px;
    }
    .status-value { text-align: left; }
    .bar-row {
      grid-template-columns: 1fr;
      gap: 6px;
    }
    .hero {
      padding-top: calc(var(--header-height) + 32px);
      padding-bottom: 48px;
    }
    .hero-headline,
    .hero h1 {
      max-width: none;
      font-size: clamp(2rem, 9vw, 2.8rem);
    }
  }

  @media (min-width: 1025px) {
    .section { padding: 88px 0; }
  }

  .btn,
  .site-contact,
  .mobile-menu__contact,
  .site-menu-toggle {
    min-height: 44px;
  }
}