/* --- TOKEN SYSTEM ------------------------------------------- */
  :root {
    --teal-900: #0D2B2B;
    --teal-800: #112F2F;
    --teal-700: #163636;
    --teal-600: #1A4040;
    --teal-500: #1F4D4D;
    --teal-300: #2E7474;
    --teal-200: #3D9494;
    --teal-100: #5BB5B5;
    --sage:     #7A9E6A;
    --sage-dim: #5C7A4E;
    --white:    #FFFFFF;
    --off-white:#F5F4F0;
    --border-light: rgba(255,255,255,0.08);
    --border-mid:   rgba(255,255,255,0.14);

    /* transitions */
    --t: 0.22s ease;
  }

  /* DARK MODE (default) */
  [data-theme="dark"] {
    --bg:          var(--teal-900);
    --bg-card:     var(--teal-800);
    --bg-raised:   var(--teal-700);
    --bg-input:    var(--teal-600);
    --border:      var(--border-light);
    --border-hover:var(--border-mid);
    --text-primary:var(--white);
    --text-secondary: rgba(255,255,255,0.55);
    --text-muted:  rgba(255,255,255,0.3);
    --accent:      var(--sage);
    --accent-dim:  var(--sage-dim);
    --scan-line:   rgba(122,158,106,0.6);
    --logo-filter: none;
    --nav-bg:      rgba(13,43,43,0.88);
    --tag-bg:      rgba(122,158,106,0.12);
    --tag-text:    var(--sage);
    --code-bg:     rgba(0,0,0,0.35);
  }

  /* LIGHT MODE */
  [data-theme="light"] {
    --bg:          var(--white);
    --bg-card:     var(--off-white);
    --bg-raised:   #ECEAE4;
    --bg-input:    #E4E2DC;
    --border:      rgba(13,43,43,0.1);
    --border-hover:rgba(13,43,43,0.2);
    --text-primary:var(--teal-900);
    --text-secondary: rgba(13,43,43,0.55);
    --text-muted:  rgba(13,43,43,0.3);
    --accent:      var(--sage-dim);
    --accent-dim:  #4A6840;
    --scan-line:   rgba(92,122,78,0.5);
    --logo-filter: none;
    --nav-bg:      rgba(255,255,255,0.9);
    --tag-bg:      rgba(13,43,43,0.07);
    --tag-text:    var(--teal-900);
    --code-bg:     rgba(13,43,43,0.05);
  }

  /* --- RESET ------------------------------------------------- */
  *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
  html { scroll-behavior: smooth; }
  body {
    font-family: 'DM Sans', sans-serif;
    background: var(--bg);
    color: var(--text-primary);
    font-size: 16px;
    line-height: 1.6;
    transition: background var(--t), color var(--t);
    overflow-x: hidden;
  }
  a { color: inherit; text-decoration: none; }
  img { display: block; max-width: 100%; }
  button { cursor: pointer; border: none; background: none; font-family: inherit; }
  ul { list-style: none; }

  /* --- TYPOGRAPHY -------------------------------------------- */
  .mono { font-family: 'IBM Plex Mono', monospace; }
  h1, h2, h3, h4 { font-family: 'DM Sans', sans-serif; font-weight: 600; line-height: 1.15; letter-spacing: -0.02em; }

  /* --- NAV --------------------------------------------------- */
  .nav {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    background: var(--nav-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    transition: background var(--t), border-color var(--t);
  }
  .nav-inner {
    max-width: 1200px; margin: 0 auto;
    display: flex; align-items: center; justify-content: space-between;
    padding: 0 32px; height: 60px;
  }
  .nav-logo {
    display: flex; align-items: center; gap: 10px;
  }
  .nav-logo img {
    width: 32px; height: 32px; object-fit: contain;
    filter: var(--logo-filter);
  }
  .nav-wordmark {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 15px; font-weight: 600;
    color: var(--text-primary);
    letter-spacing: 0.02em;
  }
  .nav-wordmark span { color: var(--accent); }
  .nav-links {
    display: flex; align-items: center; gap: 8px;
  }
  .nav-links a {
    font-size: 13.5px; font-weight: 500;
    color: var(--text-secondary);
    padding: 6px 12px; border-radius: 6px;
    transition: color var(--t), background var(--t);
  }
  .nav-links a:hover { color: var(--text-primary); background: var(--border); }
  .nav-links a.active { color: var(--text-primary); background: var(--tag-bg); }
  .nav-actions { display: flex; align-items: center; gap: 10px; }
  .btn-ghost {
    font-size: 13.5px; font-weight: 500;
    color: var(--text-secondary);
    padding: 7px 16px; border-radius: 7px;
    border: 1px solid var(--border);
    transition: all var(--t);
  }
  .btn-ghost:hover { color: var(--text-primary); border-color: var(--border-hover); }
  .btn-primary {
    font-size: 13.5px; font-weight: 600;
    color: var(--bg); background: var(--accent);
    padding: 7px 18px; border-radius: 7px;
    transition: all var(--t);
  }
  .btn-primary:hover { opacity: 0.88; }
  .theme-toggle {
    width: 36px; height: 36px;
    border-radius: 8px;
    border: 1px solid var(--border);
    display: flex; align-items: center; justify-content: center;
    color: var(--text-secondary);
    transition: all var(--t);
  }
  .theme-toggle:hover { color: var(--text-primary); border-color: var(--border-hover); }
  .theme-toggle svg { width: 16px; height: 16px; }

  /* --- HERO --------------------------------------------------- */
  .hero {
    padding-top: 60px;
    min-height: 100vh;
    display: flex; flex-direction: column;
    position: relative; overflow: hidden;
  }
  .hero-content {
    max-width: 1200px; margin: 0 auto;
    padding: 96px 32px 64px;
    display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center;
  }
  .hero-eyebrow {
    display: inline-flex; align-items: center; gap: 8px;
    background: var(--tag-bg); color: var(--tag-text);
    border: 1px solid var(--border);
    font-family: 'IBM Plex Mono', monospace;
    font-size: 11px; font-weight: 500; letter-spacing: 0.08em;
    padding: 4px 10px; border-radius: 4px; text-transform: uppercase;
    margin-bottom: 24px;
  }
  .hero-eyebrow::before {
    content: ''; width: 6px; height: 6px;
    border-radius: 50%; background: var(--accent);
    animation: pulse 2s infinite;
  }
  @keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.35; }
  }
  .hero h1 {
    font-size: clamp(40px, 5vw, 58px);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 20px;
    letter-spacing: -0.03em;
    line-height: 1.08;
  }
  .hero h1 em { font-style: normal; color: var(--accent); }
  .hero-sub {
    font-size: 17px; font-weight: 300;
    color: var(--text-secondary);
    line-height: 1.65;
    max-width: 420px; margin-bottom: 36px;
  }
  .hero-ctas {
    display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
  }
  .btn-hero-primary {
    font-size: 14px; font-weight: 600;
    color: var(--bg); background: var(--accent);
    padding: 11px 24px; border-radius: 8px;
    transition: all var(--t);
  }
  .btn-hero-primary:hover { opacity: 0.85; }
  .btn-hero-ghost {
    font-size: 14px; font-weight: 500;
    color: var(--text-secondary);
    padding: 11px 24px; border-radius: 8px;
    border: 1px solid var(--border);
    transition: all var(--t);
  }
  .btn-hero-ghost:hover { color: var(--text-primary); border-color: var(--border-hover); }

  /* --- RADARGRAM VISUAL ------------------------------------- */
  .radargram-wrap {
    position: relative; border-radius: 12px; overflow: hidden;
    border: 1px solid var(--border);
    background: var(--bg-card);
    aspect-ratio: 4/3;
  }
  .radargram-header {
    position: absolute; top: 0; left: 0; right: 0; z-index: 2;
    background: var(--bg-raised);
    border-bottom: 1px solid var(--border);
    padding: 10px 14px;
    display: flex; align-items: center; justify-content: space-between;
  }
  .rg-title {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 10px; font-weight: 500;
    color: var(--text-secondary); letter-spacing: 0.06em;
    text-transform: uppercase;
  }
  .rg-dots { display: flex; gap: 5px; }
  .rg-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--border-hover); }
  .rg-dot:nth-child(1) { background: #E5534B; }
  .rg-dot:nth-child(2) { background: #DAA520; }
  .rg-dot:nth-child(3) { background: var(--accent); }
  canvas#radargram {
    position: absolute; top: 38px; left: 0; right: 0; bottom: 0;
    width: 100%; height: calc(100% - 38px);
  }
  .scan-line {
    position: absolute; left: 0; right: 0;
    height: 2px;
    background: var(--scan-line);
    box-shadow: 0 0 8px var(--scan-line), 0 0 20px var(--scan-line);
    top: 38px;
    animation: scanDown 3.5s linear infinite;
    z-index: 3;
  }
  @keyframes scanDown {
    0%   { top: 38px; opacity: 1; }
    90%  { opacity: 1; }
    100% { top: 100%; opacity: 0; }
  }
  .rg-tooltip {
    position: absolute; bottom: 14px; left: 14px; z-index: 4;
    background: var(--bg-raised);
    border: 1px solid var(--border);
    border-radius: 7px; padding: 10px 12px;
    font-family: 'IBM Plex Mono', monospace;
    font-size: 10px; line-height: 1.7;
    color: var(--text-secondary);
  }
  .rg-tooltip strong { color: var(--text-primary); }
  .rg-tooltip .accent { color: var(--accent); }

  /* --- STATS BAR -------------------------------------------- */
  .stats-bar {
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    background: var(--bg-card);
    transition: background var(--t), border-color var(--t);
  }
  .stats-inner {
    max-width: 1200px; margin: 0 auto;
    display: grid; grid-template-columns: repeat(4, 1fr);
    padding: 0 32px;
  }
  .stat-item {
    padding: 28px 0;
    border-right: 1px solid var(--border);
    padding-left: 32px;
  }
  .stat-item:first-child { padding-left: 0; }
  .stat-item:last-child { border-right: none; }
  .stat-num {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 28px; font-weight: 600;
    color: var(--text-primary); line-height: 1;
    margin-bottom: 4px;
  }
  .stat-label {
    font-size: 12px; font-weight: 400;
    color: var(--text-secondary); letter-spacing: 0.01em;
  }

  /* --- SECTION LAYOUT -------------------------------------- */
  .section {
    max-width: 1200px; margin: 0 auto;
    padding: 96px 32px;
  }
  .section-label {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 11px; font-weight: 500;
    color: var(--accent); letter-spacing: 0.1em;
    text-transform: uppercase; margin-bottom: 14px;
  }
  .section-title {
    font-size: clamp(28px, 3.5vw, 40px);
    font-weight: 600; letter-spacing: -0.025em;
    color: var(--text-primary); margin-bottom: 16px;
    max-width: 580px;
  }
  .section-sub {
    font-size: 16px; font-weight: 300;
    color: var(--text-secondary); line-height: 1.7;
    max-width: 520px; margin-bottom: 56px;
  }
  .divider {
    border: none; border-top: 1px solid var(--border);
    margin: 0;
  }

  /* --- WORKFLOW --------------------------------------------- */
  .workflow-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: var(--border);
    border: 1px solid var(--border);
    border-radius: 12px; overflow: hidden;
  }
  .workflow-cell {
    background: var(--bg-card);
    padding: 32px 28px;
    transition: background var(--t);
    position: relative;
  }
  .workflow-cell:hover { background: var(--bg-raised); }
  .wf-step {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 10px; font-weight: 500;
    color: var(--accent); letter-spacing: 0.08em;
    text-transform: uppercase; margin-bottom: 12px;
  }
  .wf-title {
    font-size: 15px; font-weight: 600;
    color: var(--text-primary); margin-bottom: 8px;
  }
  .wf-desc {
    font-size: 13.5px; font-weight: 300;
    color: var(--text-secondary); line-height: 1.6;
  }

  /* --- FEATURES --------------------------------------------- */
  .features-layout {
    display: grid; grid-template-columns: 1fr 1fr;
    gap: 48px; align-items: start;
  }
  .feature-list { display: flex; flex-direction: column; gap: 2px; }
  .feature-item {
    padding: 20px 0;
    border-bottom: 1px solid var(--border);
    cursor: pointer;
    transition: all var(--t);
  }
  .feature-item:first-child { border-top: 1px solid var(--border); }
  .feature-item-header {
    display: flex; align-items: center; justify-content: space-between;
  }
  .feature-name {
    font-size: 14px; font-weight: 500;
    color: var(--text-secondary);
    transition: color var(--t);
  }
  .feature-item.active .feature-name { color: var(--text-primary); }
  .feature-item.active { }
  .feature-chevron {
    width: 14px; height: 14px; color: var(--text-muted);
    transition: transform var(--t), color var(--t);
    flex-shrink: 0;
  }
  .feature-item.active .feature-chevron {
    transform: rotate(90deg); color: var(--accent);
  }
  .feature-body {
    max-height: 0; overflow: hidden;
    transition: max-height 0.3s ease, opacity 0.3s ease;
    opacity: 0;
  }
  .feature-item.active .feature-body { max-height: 200px; opacity: 1; }
  .feature-body-inner {
    padding-top: 10px;
    font-size: 13.5px; font-weight: 300;
    color: var(--text-secondary); line-height: 1.65;
  }
  .feature-panel {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px; overflow: hidden;
    position: sticky; top: 80px;
  }
  .feature-panel-header {
    background: var(--bg-raised);
    border-bottom: 1px solid var(--border);
    padding: 12px 16px;
    display: flex; align-items: center; gap: 8px;
  }
  .panel-label {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 10px; font-weight: 500;
    color: var(--text-secondary); letter-spacing: 0.06em;
    text-transform: uppercase;
  }
  .feature-panel-body { padding: 20px; }
  .code-block {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 12px; line-height: 1.75;
    color: var(--text-secondary);
    background: var(--code-bg);
    border: 1px solid var(--border);
    border-radius: 7px; padding: 16px;
  }
  .code-block .k { color: var(--accent); }
  .code-block .v { color: var(--text-primary); }
  .code-block .c { color: var(--text-muted); }
  .health-bar-wrap {
    margin-top: 16px;
    display: flex; flex-direction: column; gap: 10px;
  }
  .health-row {
    display: flex; align-items: center; gap: 10px;
  }
  .health-label {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 10px; color: var(--text-muted);
    width: 80px; flex-shrink: 0;
  }
  .health-track {
    flex: 1; height: 4px;
    background: var(--border);
    border-radius: 2px; overflow: hidden;
  }
  .health-fill {
    height: 100%; border-radius: 2px;
    background: var(--accent);
    transition: width 0.8s ease;
  }
  .health-pct {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 10px; color: var(--text-secondary);
    width: 32px; text-align: right; flex-shrink: 0;
  }

  /* --- TARGET TABLE ---------------------------------------- */
  .targets-section { }
  .target-table {
    width: 100%; border-collapse: collapse;
    margin-top: 40px;
  }
  .target-table thead tr {
    border-bottom: 1px solid var(--border);
  }
  .target-table th {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 10px; font-weight: 500;
    color: var(--text-muted); letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 0 0 12px; text-align: left;
  }
  .target-table th:not(:first-child) { padding-left: 20px; }
  .target-table tbody tr {
    border-bottom: 1px solid var(--border);
    transition: background var(--t);
    cursor: pointer;
  }
  .target-table tbody tr:hover { background: var(--bg-card); }
  .target-table td {
    padding: 16px 0; font-size: 13.5px;
    color: var(--text-secondary);
  }
  .target-table td:not(:first-child) { padding-left: 20px; }
  .target-id {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 11px; font-weight: 500;
    color: var(--accent);
  }
  .target-type {
    font-size: 12px; font-weight: 500;
    color: var(--text-primary);
  }
  .confidence-badge {
    display: inline-flex; align-items: center;
    font-family: 'IBM Plex Mono', monospace;
    font-size: 11px; font-weight: 600;
    padding: 2px 8px; border-radius: 4px;
  }
  .conf-high { background: rgba(122,158,106,0.15); color: var(--accent); }
  .conf-mid  { background: rgba(218,165,32,0.12); color: #C09A28; }
  .conf-low  { background: rgba(229,83,75,0.12); color: #B84A43; }

  /* --- AI SECTION ------------------------------------------- */
  .ai-layout {
    display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center;
  }
  .chat-mock {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px; overflow: hidden;
  }
  .chat-header {
    background: var(--bg-raised);
    border-bottom: 1px solid var(--border);
    padding: 12px 16px;
    display: flex; align-items: center; gap: 8px;
  }
  .chat-title {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 10px; font-weight: 500;
    color: var(--text-secondary); letter-spacing: 0.06em;
    text-transform: uppercase;
  }
  .chat-status {
    margin-left: auto;
    display: flex; align-items: center; gap: 6px;
    font-size: 11px; color: var(--accent);
    font-family: 'IBM Plex Mono', monospace;
  }
  .chat-status::before {
    content: ''; width: 6px; height: 6px;
    border-radius: 50%; background: var(--accent);
  }
  .chat-body { padding: 20px; display: flex; flex-direction: column; gap: 16px; }
  .chat-msg {
    max-width: 82%; font-size: 13px; line-height: 1.6;
  }
  .chat-msg.user {
    align-self: flex-end;
    background: var(--tag-bg);
    border: 1px solid var(--border);
    border-radius: 10px 10px 3px 10px;
    padding: 10px 14px;
    color: var(--text-primary);
    font-family: 'IBM Plex Mono', monospace;
    font-size: 12px;
  }
  .chat-msg.ai {
    align-self: flex-start;
    color: var(--text-secondary);
    font-size: 13px;
  }
  .chat-msg.ai strong { color: var(--text-primary); }
  .chat-msg.ai .highlight { color: var(--accent); font-weight: 500; }
  .chat-input-row {
    display: flex; gap: 8px; padding: 12px 16px;
    border-top: 1px solid var(--border);
    background: var(--bg);
  }
  .chat-input {
    flex: 1; background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 7px; padding: 8px 12px;
    font-family: 'IBM Plex Mono', monospace;
    font-size: 12px; color: var(--text-secondary);
    outline: none;
  }
  .chat-send {
    background: var(--accent); color: var(--bg);
    border-radius: 7px; padding: 8px 14px;
    font-size: 12px; font-weight: 600;
  }
  .ai-points { display: flex; flex-direction: column; gap: 24px; }
  .ai-point { display: flex; gap: 16px; }
  .ai-point-icon {
    width: 36px; height: 36px; border-radius: 8px;
    background: var(--tag-bg);
    border: 1px solid var(--border);
    flex-shrink: 0;
    display: flex; align-items: center; justify-content: center;
  }
  .ai-point-icon svg { width: 16px; height: 16px; color: var(--accent); }
  .ai-point-text { }
  .ai-point-title {
    font-size: 14px; font-weight: 600;
    color: var(--text-primary); margin-bottom: 4px;
  }
  .ai-point-desc {
    font-size: 13px; font-weight: 300;
    color: var(--text-secondary); line-height: 1.6;
  }

  /* --- EXPORT / FORMAT GRID -------------------------------- */
  .export-grid {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px;
    margin-top: 40px;
  }
  .export-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 20px 18px;
    transition: all var(--t);
  }
  .export-card:hover {
    border-color: var(--border-hover);
    background: var(--bg-raised);
  }
  .export-format {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 13px; font-weight: 600;
    color: var(--accent); margin-bottom: 6px;
  }
  .export-desc {
    font-size: 12px; font-weight: 300;
    color: var(--text-secondary); line-height: 1.5;
  }

  /* --- WORKFLOW USE CASES ----------------------------------- */
  .use-case-grid {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px;
    margin-top: 40px;
  }
  .use-case-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 24px 20px;
    transition: all var(--t);
  }
  .use-case-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-2px);
  }
  .uc-label {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 10px; font-weight: 500;
    color: var(--accent); letter-spacing: 0.08em;
    text-transform: uppercase; margin-bottom: 8px;
  }
  .uc-title {
    font-size: 14px; font-weight: 600;
    color: var(--text-primary); margin-bottom: 6px;
  }
  .uc-desc {
    font-size: 12.5px; font-weight: 300;
    color: var(--text-secondary); line-height: 1.55;
  }

  /* --- CTA / FOOTER ----------------------------------------- */
  .cta-band {
    background: var(--bg-card);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    transition: background var(--t), border-color var(--t);
  }
  .cta-inner {
    max-width: 1200px; margin: 0 auto;
    padding: 80px 32px;
    display: flex; align-items: center; justify-content: space-between;
    gap: 40px;
  }
  .cta-text h2 {
    font-size: clamp(26px, 3vw, 36px); font-weight: 600;
    letter-spacing: -0.025em; margin-bottom: 10px;
    color: var(--text-primary);
  }
  .cta-text p {
    font-size: 15px; font-weight: 300;
    color: var(--text-secondary); max-width: 420px;
  }
  .cta-actions { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
  .btn-cta-primary {
    font-size: 14px; font-weight: 600;
    background: var(--accent); color: var(--bg);
    padding: 12px 28px; border-radius: 8px;
    transition: opacity var(--t);
  }
  .btn-cta-primary:hover { opacity: 0.85; }
  .btn-cta-ghost {
    font-size: 14px; font-weight: 500;
    color: var(--text-secondary);
    padding: 12px 24px; border-radius: 8px;
    border: 1px solid var(--border);
    transition: all var(--t);
  }
  .btn-cta-ghost:hover { color: var(--text-primary); border-color: var(--border-hover); }
  .footer {
    background: var(--bg);
    border-top: 1px solid var(--border);
    transition: background var(--t);
  }
  .footer-inner {
    max-width: 1200px; margin: 0 auto;
    padding: 48px 32px 32px;
    display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px;
  }
  .footer-brand { }
  .footer-logo {
    display: flex; align-items: center; gap: 8px; margin-bottom: 14px;
  }
  .footer-logo img { width: 28px; height: 28px; object-fit: contain; }
  .footer-wordmark {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 14px; font-weight: 600;
    color: var(--text-primary);
  }
  .footer-wordmark span { color: var(--accent); }
  .footer-tagline {
    font-size: 13px; font-weight: 300;
    color: var(--text-secondary); line-height: 1.65;
    max-width: 240px; margin-bottom: 20px;
  }
  .footer-byline {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 10px; color: var(--text-muted);
    letter-spacing: 0.04em;
  }
  .footer-col h4 {
    font-size: 12px; font-weight: 600;
    color: var(--text-secondary);
    letter-spacing: 0.04em; margin-bottom: 14px;
    text-transform: uppercase;
    font-family: 'IBM Plex Mono', monospace;
  }
  .footer-col ul { display: flex; flex-direction: column; gap: 9px; }
  .footer-col ul li a {
    font-size: 13px; color: var(--text-muted);
    transition: color var(--t);
  }
  .footer-col ul li a:hover { color: var(--text-secondary); }
  .footer-bottom {
    max-width: 1200px; margin: 0 auto;
    padding: 20px 32px;
    border-top: 1px solid var(--border);
    display: flex; align-items: center; justify-content: space-between;
  }
  .footer-copy {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 11px; color: var(--text-muted);
  }
  .footer-legal {
    display: flex; gap: 20px;
  }
  .footer-legal span {
    font-size: 11px; color: var(--text-muted);
    font-family: 'IBM Plex Mono', monospace;
  }
  .footer-legal a {
    font-size: 11px; color: var(--text-muted);
    transition: color var(--t);
    font-family: 'IBM Plex Mono', monospace;
  }
  .footer-legal a:hover { color: var(--text-secondary); }

  /* APP ROUTES */
  .app-shell {
    max-width: 1200px;
    margin: 0 auto;
    min-height: calc(100vh - 160px);
    padding: 132px 32px 72px;
  }

  .app-hero {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
    gap: 32px;
    padding-bottom: 40px;
    border-bottom: 1px solid var(--border);
  }

  .app-hero h1 {
    max-width: 760px;
    margin-bottom: 14px;
    font-size: clamp(34px, 5vw, 56px);
    letter-spacing: -0.03em;
  }

  .app-hero p {
    max-width: 620px;
    color: var(--text-secondary);
    font-weight: 300;
    line-height: 1.7;
  }

  .app-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    padding-top: 28px;
  }

  .app-project-list {
    display: contents;
  }

  .app-project-list.has-projects {
    display: contents;
  }

  .project-card-link {
    display: block;
    color: inherit;
    text-decoration: none;
  }

  .app-card {
    min-height: 220px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 22px;
    transition: background var(--t), border-color var(--t), transform var(--t);
  }

  .app-card:hover {
    background: var(--bg-raised);
    border-color: var(--border-hover);
    transform: translateY(-2px);
  }

  .app-card-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 28px;
  }

  .app-kicker {
    color: var(--accent);
    font-size: 11px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
  }

  .app-status {
    flex-shrink: 0;
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 3px 8px;
    color: var(--text-secondary);
    font-size: 11px;
  }

  .app-card h2 {
    margin-bottom: 10px;
    color: var(--text-primary);
    font-size: 20px;
    letter-spacing: -0.01em;
  }

  .app-card p {
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 300;
    line-height: 1.65;
  }

  .project-objective {
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid var(--border);
  }

  .app-empty {
    grid-column: 1 / -1;
    min-height: 220px;
    border: 1px dashed var(--border-hover);
    border-radius: 8px;
    padding: 28px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    background: var(--bg-card);
  }

  .app-empty h2 {
    margin: 12px 0 10px;
    color: var(--text-primary);
    font-size: 22px;
  }

  .app-empty p {
    max-width: 620px;
    color: var(--text-secondary);
    font-weight: 300;
    line-height: 1.7;
  }

  .project-form {
    grid-column: 1 / -1;
    display: flex;
    flex-direction: column;
    gap: 18px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--bg-card);
    padding: 24px;
  }

  .form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .project-form label {
    display: flex;
    flex-direction: column;
    gap: 8px;
  }

  .project-form label span {
    font-family: 'IBM Plex Mono', monospace;
    color: var(--text-muted);
    font-size: 10px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
  }

  .project-form input,
  .project-form select,
  .project-form textarea {
    width: 100%;
    border: 1px solid var(--border);
    border-radius: 7px;
    background: var(--bg-input);
    color: var(--text-primary);
    font: inherit;
    padding: 11px 12px;
    outline: none;
  }

  .project-form textarea {
    resize: vertical;
  }

  .project-form input:focus,
  .project-form select:focus,
  .project-form textarea:focus {
    border-color: var(--border-hover);
  }

  .form-actions {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 12px;
  }

  .form-note {
    color: var(--text-muted);
    font-size: 13px;
  }

  .form-error {
    color: #E5534B;
  }

  .compact-footer {
    border-top: 1px solid var(--border);
    padding: 0;
  }

  .workspace-shell {
    max-width: 1240px;
  }

  .workspace-hero {
    align-items: center;
  }

  .workspace-layout {
    display: grid;
    grid-template-columns: 260px minmax(0, 1fr);
    gap: 24px;
    padding-top: 28px;
  }

  .workspace-sidebar {
    position: sticky;
    top: 84px;
    align-self: start;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--bg-card);
    overflow: hidden;
  }

  .workspace-step {
    display: block;
    padding: 14px 16px;
    border-bottom: 1px solid var(--border);
    color: var(--text-secondary);
    font-size: 13px;
    transition: background var(--t), color var(--t);
  }

  .workspace-step:last-child {
    border-bottom: none;
  }

  .workspace-step:hover,
  .workspace-step.active {
    background: var(--tag-bg);
    color: var(--text-primary);
  }

  .workspace-main {
    display: flex;
    flex-direction: column;
    gap: 16px;
  }

  .workspace-panel {
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--bg-card);
    padding: 24px;
  }

  .workspace-panel-head {
    display: flex;
    align-items: start;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 18px;
  }

  .workspace-panel h2 {
    margin-top: 8px;
    font-size: 24px;
  }

  .workspace-panel p {
    color: var(--text-secondary);
    font-weight: 300;
    line-height: 1.7;
  }

  .muted-panel {
    background: transparent;
  }

  .upload-form {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 12px;
    margin-bottom: 12px;
  }

  .upload-form input[type="file"] {
    min-width: 0;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--bg-input);
    color: var(--text-secondary);
    padding: 10px;
  }

  .file-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 18px;
  }

  .file-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    border: 1px solid var(--border);
    border-radius: 7px;
    padding: 12px 14px;
    background: var(--bg);
  }

  .file-row strong {
    display: block;
    color: var(--text-primary);
    font-size: 14px;
    overflow-wrap: anywhere;
  }

  .file-row span {
    color: var(--text-muted);
    font-family: 'IBM Plex Mono', monospace;
    font-size: 11px;
    white-space: nowrap;
  }

  .workspace-app {
    display: grid;
    grid-template-columns: 228px minmax(0, 1fr);
    min-height: 100vh;
    background: var(--bg);
  }

  .workspace-rail {
    position: sticky;
    top: 0;
    height: 100vh;
    overflow-y: auto;
    border-right: 1px solid var(--border);
    background: var(--bg-card);
    padding: 16px 12px;
    display: flex;
    flex-direction: column;
    gap: 8px;
  }

  .workspace-back {
    color: var(--text-muted);
    font-size: 12px;
    padding: 6px 10px;
    transition: color var(--t);
  }

  .workspace-back:hover {
    color: var(--text-primary);
  }

  .workspace-project-id {
    padding: 8px 10px 14px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 4px;
  }

  .workspace-project-id div {
    font-size: 14.5px;
    font-weight: 600;
    line-height: 1.25;
  }

  .workspace-project-id span {
    display: block;
    margin-top: 4px;
    color: var(--text-muted);
    font-family: 'IBM Plex Mono', monospace;
    font-size: 11px;
    line-height: 1.5;
  }

  .workspace-tabs {
    display: flex;
    flex-direction: column;
    gap: 2px;
  }

  .workspace-tabs button {
    display: flex;
    align-items: center;
    gap: 4px;
    width: 100%;
    border-radius: 8px;
    padding: 8px 10px;
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 500;
    text-align: left;
    transition: background var(--t), color var(--t);
  }

  .workspace-tabs button span {
    width: 18px;
    color: var(--text-muted);
    font-family: 'IBM Plex Mono', monospace;
    font-size: 10px;
  }

  .workspace-tabs button:hover,
  .workspace-tabs button.active {
    background: var(--bg-raised);
    color: var(--text-primary);
  }

  .workspace-health {
    margin-top: auto;
    padding: 12px 10px;
    border-top: 1px solid var(--border);
  }

  .workspace-health div:first-child {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    margin-bottom: 8px;
  }

  .workspace-health span,
  .workspace-health strong {
    color: var(--text-muted);
    font-size: 11px;
  }

  .workspace-health strong {
    font-family: 'IBM Plex Mono', monospace;
    font-weight: 600;
  }

  .workspace-health-track {
    height: 3px;
    background: var(--bg-input);
    border-radius: 2px;
    overflow: hidden;
  }

  .workspace-health-track span {
    display: block;
    height: 100%;
    width: 0;
    background: var(--accent);
    transition: width var(--t), background var(--t);
  }

  .workspace-content {
    min-width: 0;
    padding: 34px 36px 52px;
  }

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

  .workspace-header h1 {
    max-width: 760px;
    font-size: clamp(28px, 4vw, 42px);
  }

  .workspace-tab-panel {
    display: none;
  }

  .workspace-tab-panel.active {
    display: block;
  }

  .workspace-stat-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    margin-bottom: 16px;
  }

  .workspace-stat-grid div {
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--bg-card);
    padding: 18px;
  }

  .workspace-stat-grid span {
    display: block;
    color: var(--text-muted);
    font-size: 12px;
    margin-bottom: 8px;
  }

  .workspace-stat-grid strong {
    color: var(--text-primary);
    font-family: 'IBM Plex Mono', monospace;
    font-size: 22px;
  }

  .workspace-dropzone {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 18px;
    border: 1.5px dashed var(--border-hover);
    border-radius: 14px;
    padding: 26px;
  }

  .workspace-dropzone input {
    grid-column: 1 / -1;
    width: 100%;
    color: var(--text-secondary);
  }

  .workspace-dropzone h2 {
    margin-bottom: 4px;
    font-size: 18px;
  }

  .workspace-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
  }

  .workspace-warning,
  .workspace-empty-note {
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--bg);
    color: var(--text-secondary);
    padding: 12px 14px;
    font-size: 13px;
  }

  .workspace-table {
    border: 1px solid var(--border);
    border-radius: 10px;
    overflow: hidden;
  }

  .workspace-table-head,
  .workspace-table-row {
    display: grid;
    grid-template-columns: 1.1fr 1.4fr 0.5fr 0.7fr 0.8fr;
    gap: 10px;
    align-items: center;
    padding: 12px 16px;
  }

  .workspace-table-head {
    background: var(--bg-raised);
    color: var(--text-muted);
    font-family: 'IBM Plex Mono', monospace;
    font-size: 10.5px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
  }

  .workspace-table-row {
    border-top: 1px solid var(--border);
    color: var(--text-secondary);
    font-size: 13px;
  }

  .workspace-table-row span:first-child {
    color: var(--text-primary);
    font-family: 'IBM Plex Mono', monospace;
    font-weight: 600;
  }

  .processing-catalog {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
  }

  .processing-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 14px;
    background: var(--bg);
  }

  .processing-item strong,
  .processing-item span {
    display: block;
  }

  .processing-item strong {
    color: var(--text-primary);
    font-size: 14px;
  }

  .processing-item span {
    color: var(--text-secondary);
    font-size: 12px;
  }

  .processing-item button {
    flex-shrink: 0;
    border: 1px solid var(--border);
    border-radius: 7px;
    color: var(--text-secondary);
    padding: 6px 10px;
    font-size: 11px;
  }

  .workspace-placeholder {
    min-height: 300px;
    display: flex;
    flex-direction: column;
    justify-content: center;
  }

  .workspace-export-grid {
    margin-top: 0;
  }

  /* --- RESPONSIVE ------------------------------------------- */
  @media (max-width: 900px) {
    .nav-links { display: none; }
    .hero-content { grid-template-columns: 1fr; gap: 40px; padding: 64px 20px 48px; }
    .radargram-wrap { max-width: 480px; margin: 0 auto; }
    .stats-inner { grid-template-columns: 1fr 1fr; gap: 1px; }
    .stat-item { padding: 20px 16px; }
    .section { padding: 64px 20px; }
    .workflow-grid { grid-template-columns: 1fr; }
    .features-layout { grid-template-columns: 1fr; }
    .feature-panel { position: static; }
    .ai-layout { grid-template-columns: 1fr; gap: 40px; }
    .export-grid { grid-template-columns: 1fr 1fr; }
    .use-case-grid { grid-template-columns: 1fr 1fr; }
    .footer-inner { grid-template-columns: 1fr 1fr; }
    .cta-inner { flex-direction: column; align-items: flex-start; }
    .target-table { font-size: 12px; }
    .app-hero,
    .app-grid {
      grid-template-columns: 1fr;
    }
    .app-hero {
      align-items: start;
    }
    .workspace-layout {
      grid-template-columns: 1fr;
    }
    .workspace-sidebar {
      position: static;
    }
    .workspace-app {
      grid-template-columns: 1fr;
    }
    .workspace-rail {
      position: static;
      height: auto;
    }
    .workspace-tabs {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
    }
    .workspace-content {
      padding: 28px 20px 44px;
    }
    .workspace-stat-grid,
    .processing-catalog {
      grid-template-columns: 1fr 1fr;
    }
  }

  @media (max-width: 640px) {
    .app-shell {
      padding: 104px 20px 48px;
    }

    .app-card {
      min-height: auto;
    }

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

    .form-actions {
      align-items: stretch;
      flex-direction: column-reverse;
    }
    .upload-form {
      grid-template-columns: 1fr;
    }
    .file-row {
      align-items: flex-start;
      flex-direction: column;
    }
    .workspace-header,
    .workspace-dropzone {
      grid-template-columns: 1fr;
      flex-direction: column;
      align-items: stretch;
    }
    .workspace-tabs,
    .workspace-stat-grid,
    .processing-catalog {
      grid-template-columns: 1fr;
    }
    .workspace-table {
      overflow-x: auto;
    }
    .workspace-table-head,
    .workspace-table-row {
      min-width: 620px;
    }
  }

  /* --- SCROLL REVEAL ---------------------------------------- */
  .reveal {
    opacity: 0; transform: translateY(20px);
    transition: opacity 0.55s ease, transform 0.55s ease;
  }
  .reveal.visible { opacity: 1; transform: translateY(0); }

  @media (prefers-reduced-motion: reduce) {
    .scan-line { animation: none; }
    .reveal { opacity: 1; transform: none; }
    * { transition-duration: 0ms !important; }
  }