:root {
      --brand-primary: #1a73e8;
      --brand-primary-dark: #1557b0;
      --brand-accent: #e8710a;
      --dark-bg: #0d1117;
      --dark-surface: #161b22;
      --dark-border: #30363d;
      --text-muted-dark: #8b949e;
      --section-light: #f8f9fb;
      --radius: 6px;
    }

    * { box-sizing: border-box; }

    body {
      font-family: 'DM Sans', sans-serif;
      font-weight: 400;
      color: #1c1e21;
      background: #fff;
      -webkit-font-smoothing: antialiased;
    }

    /* ── NAV ── */
    .gv-nav {
      position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
      background: rgba(13, 17, 23, 0.96);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--dark-border);
      height: 60px;
    }
    .gv-nav .container {
      height: 60px;
      display: flex; align-items: center; justify-content: space-between;
    }
    .gv-logo {
      font-family: 'DM Serif Display', serif;
      font-size: 1.35rem;
      color: #fff;
      text-decoration: none;
      letter-spacing: -0.01em;
    }
    .gv-logo span {
      color: var(--brand-accent);
    }
    .gv-nav-links {
      display: flex; align-items: center; gap: 0.25rem;
      list-style: none; margin: 0; padding: 0;
    }
    .gv-nav-links a {
      color: var(--text-muted-dark);
      text-decoration: none;
      font-size: 0.875rem;
      font-weight: 500;
      padding: 0.4rem 0.75rem;
      border-radius: var(--radius);
      transition: color 0.15s, background 0.15s;
    }
    .gv-nav-links a:hover { color: #fff; background: rgba(255,255,255,0.07); }
    .gv-nav-cta {
      background: var(--brand-primary) !important;
      color: #fff !important;
      padding: 0.4rem 1rem !important;
    }
    .gv-nav-cta:hover { background: var(--brand-primary-dark) !important; }
    .gv-hamburger {
      display: none;
      background: none; border: none; color: #fff;
      font-size: 1.2rem; cursor: pointer;
    }

    /* ── HERO ── */
    .gv-hero {
      background: var(--dark-bg);
      padding: 140px 0 100px;
      position: relative;
      overflow: hidden;
    }
    .gv-hero::before {
      content: '';
      position: absolute; inset: 0;
      background:
        radial-gradient(ellipse 60% 50% at 20% 40%, rgba(26,115,232,0.12) 0%, transparent 70%),
        radial-gradient(ellipse 40% 40% at 80% 60%, rgba(232,113,10,0.08) 0%, transparent 70%);
      pointer-events: none;
    }
    .gv-hero-label {
      display: inline-flex; align-items: center; gap: 0.5rem;
      font-family: 'JetBrains Mono', monospace;
      font-size: 0.75rem;
      color: var(--brand-accent);
      border: 1px solid rgba(232,113,10,0.3);
      border-radius: 20px;
      padding: 0.3rem 0.85rem;
      margin-bottom: 1.75rem;
      letter-spacing: 0.04em;
    }
    .gv-hero h1 {
      font-family: 'DM Serif Display', serif;
      font-size: clamp(2.4rem, 5vw, 3.8rem);
      line-height: 1.12;
      color: #fff;
      letter-spacing: -0.02em;
      margin-bottom: 1.25rem;
    }
    .gv-hero h1 em {
      font-style: italic;
      color: var(--brand-primary);
    }
    .gv-hero-sub {
      font-size: 1.1rem;
      color: var(--text-muted-dark);
      line-height: 1.7;
      max-width: 540px;
      margin-bottom: 2.25rem;
    }
    .gv-btn-primary {
      display: inline-flex; align-items: center; gap: 0.5rem;
      background: var(--brand-primary);
      color: #fff;
      border: none;
      border-radius: var(--radius);
      padding: 0.75rem 1.5rem;
      font-size: 0.95rem;
      font-weight: 600;
      text-decoration: none;
      transition: background 0.15s, transform 0.15s;
    }
    .gv-btn-primary:hover { background: var(--brand-primary-dark); color: #fff; transform: translateY(-1px); }
    .gv-btn-ghost {
      display: inline-flex; align-items: center; gap: 0.5rem;
      background: transparent;
      color: #fff;
      border: 1px solid var(--dark-border);
      border-radius: var(--radius);
      padding: 0.75rem 1.5rem;
      font-size: 0.95rem;
      font-weight: 500;
      text-decoration: none;
      transition: border-color 0.15s, background 0.15s;
    }
    .gv-btn-ghost:hover { border-color: rgba(255,255,255,0.4); background: rgba(255,255,255,0.05); color: #fff; }

    /* ── HERO SCREENSHOT ── */
    .gv-hero-screen {
      border-radius: 10px;
      border: 1px solid var(--dark-border);
      overflow: hidden;
      box-shadow: 0 32px 80px rgba(0,0,0,0.5), 0 0 0 1px rgba(255,255,255,0.04);
      position: relative;
    }
    .gv-hero-screen-bar {
      background: var(--dark-surface);
      border-bottom: 1px solid var(--dark-border);
      padding: 0.6rem 1rem;
      display: flex; align-items: center; gap: 0.4rem;
    }
    .gv-dot { width: 10px; height: 10px; border-radius: 50%; }
    .gv-hero-screen-body {
      background: #1c2128;
      aspect-ratio: 16/10;
      display: flex; align-items: center; justify-content: center;
      position: relative;
      overflow: hidden;
    }

    /* Fake UI inside screenshot placeholder */
    .gv-fake-ui {
      width: 100%; height: 100%;
      display: flex;
    }
    .gv-fake-sidebar {
      width: 220px; flex-shrink: 0;
      background: #161b22;
      border-right: 1px solid #30363d;
      padding: 1rem 0.75rem;
    }
    .gv-fake-sidebar-item {
      height: 8px; border-radius: 4px;
      background: rgba(255,255,255,0.08);
      margin-bottom: 0.5rem;
    }
    .gv-fake-sidebar-item.active { background: rgba(26,115,232,0.4); }
    .gv-fake-sidebar-item.w70 { width: 70%; }
    .gv-fake-sidebar-item.w55 { width: 55%; margin-left: 1rem; }
    .gv-fake-sidebar-item.w60 { width: 60%; margin-left: 1rem; }
    .gv-fake-sidebar-item.w80 { width: 80%; }
    .gv-fake-sidebar-item.w45 { width: 45%; margin-left: 1rem; }
    .gv-fake-content {
      flex: 1; padding: 1.5rem 2rem; overflow: hidden;
    }
    .gv-fake-title { height: 18px; border-radius: 4px; background: rgba(255,255,255,0.15); width: 55%; margin-bottom: 1.25rem; }
    .gv-fake-line { height: 7px; border-radius: 3px; background: rgba(255,255,255,0.07); margin-bottom: 0.5rem; }
    .gv-fake-line.w100 { width: 100%; }
    .gv-fake-line.w90 { width: 90%; }
    .gv-fake-line.w75 { width: 75%; }
    .gv-fake-line.w60 { width: 60%; }
    .gv-fake-line.gap { margin-bottom: 1rem; }
    .gv-fake-heading { height: 11px; border-radius: 3px; background: rgba(26,115,232,0.3); width: 40%; margin-bottom: 0.75rem; margin-top: 0.5rem; }

    /* Screenshot caption */
    .gv-screen-caption {
      text-align: center;
      font-size: 0.78rem;
      color: var(--text-muted-dark);
      margin-top: 0.75rem;
      font-family: 'JetBrains Mono', monospace;
    }

    /* ── STATS BAND ── */
    .gv-stats {
      background: var(--dark-surface);
      border-top: 1px solid var(--dark-border);
      border-bottom: 1px solid var(--dark-border);
      padding: 1.5rem 0;
    }
    .gv-stat {
      text-align: center;
      padding: 0.5rem 1rem;
    }
    .gv-stat-number {
      font-family: 'DM Serif Display', serif;
      font-size: 1.6rem;
      color: #fff;
      line-height: 1;
    }
    .gv-stat-label {
      font-size: 0.78rem;
      color: var(--text-muted-dark);
      margin-top: 0.2rem;
    }
    .gv-stat-divider {
      width: 1px; background: var(--dark-border);
      align-self: stretch; margin: 0.25rem 0;
    }

    /* ── FEATURES SECTION ── */
    .gv-section { padding: 90px 0; }
    .gv-section-alt { background: var(--section-light); }

    .gv-eyebrow {
      font-family: 'JetBrains Mono', monospace;
      font-size: 0.72rem;
      font-weight: 500;
      letter-spacing: 0.1em;
      text-transform: uppercase;
      color: var(--brand-primary);
      margin-bottom: 0.75rem;
    }
    .gv-section-heading {
      font-family: 'DM Serif Display', serif;
      font-size: clamp(1.8rem, 3vw, 2.5rem);
      letter-spacing: -0.02em;
      line-height: 1.15;
      color: #0d1117;
      margin-bottom: 1rem;
    }
    .gv-section-sub {
      font-size: 1.05rem;
      color: #5a6472;
      line-height: 1.7;
      max-width: 560px;
    }

    .gv-feature-card {
      background: #fff;
      border: 1px solid #e4e7ec;
      border-radius: 10px;
      padding: 1.75rem;
      height: 100%;
      transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
    }
    .gv-feature-card:hover {
      border-color: var(--brand-primary);
      box-shadow: 0 8px 32px rgba(26,115,232,0.08);
      transform: translateY(-2px);
    }
    .gv-feature-icon {
      width: 42px; height: 42px;
      border-radius: 8px;
      display: flex; align-items: center; justify-content: center;
      font-size: 1.1rem;
      margin-bottom: 1.1rem;
    }
    .gv-feature-icon.blue { background: rgba(26,115,232,0.1); color: var(--brand-primary); }
    .gv-feature-icon.orange { background: rgba(232,113,10,0.1); color: var(--brand-accent); }
    .gv-feature-icon.green { background: rgba(22,163,74,0.1); color: #16a34a; }
    .gv-feature-icon.purple { background: rgba(124,58,237,0.1); color: #7c3aed; }
    .gv-feature-icon.teal { background: rgba(13,148,136,0.1); color: #0d9488; }
    .gv-feature-icon.red { background: rgba(220,38,38,0.1); color: #dc2626; }
    .gv-feature-title {
      font-size: 1rem;
      font-weight: 600;
      color: #0d1117;
      margin-bottom: 0.5rem;
    }
    .gv-feature-text {
      font-size: 0.875rem;
      color: #5a6472;
      line-height: 1.65;
      margin: 0;
    }
    .gv-feature-tags {
      margin-top: 1rem;
      display: flex; flex-wrap: wrap; gap: 0.3rem;
    }
    .gv-tag {
      font-size: 0.7rem;
      font-family: 'JetBrains Mono', monospace;
      background: var(--section-light);
      color: #5a6472;
      border-radius: 4px;
      padding: 0.15rem 0.4rem;
    }

    /* ── USE CASES ── */
    .gv-usecase {
      display: flex; gap: 1.25rem;
      padding: 1.5rem;
      border-radius: 10px;
      border: 1px solid #e4e7ec;
      background: #fff;
      margin-bottom: 1rem;
      transition: border-color 0.2s;
    }
    .gv-usecase:hover { border-color: var(--brand-primary); }
    .gv-usecase-num {
      font-family: 'DM Serif Display', serif;
      font-size: 2rem;
      color: #e4e7ec;
      line-height: 1;
      flex-shrink: 0;
      width: 2.5rem;
    }
    .gv-usecase-title {
      font-weight: 600;
      font-size: 0.95rem;
      color: #0d1117;
      margin-bottom: 0.3rem;
    }
    .gv-usecase-text {
      font-size: 0.85rem;
      color: #5a6472;
      line-height: 1.6;
      margin: 0;
    }

    /* ── WHY NOT WIKI ── */
    .gv-compare {
      background: var(--dark-bg);
      border-radius: 12px;
      border: 1px solid var(--dark-border);
      overflow: hidden;
    }
    .gv-compare-head {
      display: grid; grid-template-columns: 1fr 1fr;
      border-bottom: 1px solid var(--dark-border);
    }
    .gv-compare-col {
      padding: 1rem 1.5rem;
      font-size: 0.8rem;
      font-weight: 600;
      letter-spacing: 0.05em;
      text-transform: uppercase;
    }
    .gv-compare-col.wiki { color: var(--text-muted-dark); border-right: 1px solid var(--dark-border); }
    .gv-compare-col.gv { color: var(--brand-primary); }
    .gv-compare-row {
      display: grid; grid-template-columns: 1fr 1fr;
      border-bottom: 1px solid rgba(48,54,61,0.5);
    }
    .gv-compare-row:last-child { border-bottom: none; }
    .gv-compare-cell {
      padding: 0.85rem 1.5rem;
      font-size: 0.85rem;
      line-height: 1.5;
      display: flex; align-items: flex-start; gap: 0.5rem;
    }
    .gv-compare-cell.wiki { color: var(--text-muted-dark); border-right: 1px solid var(--dark-border); }
    .gv-compare-cell.gv { color: #c9d1d9; }
    .gv-compare-cell i { flex-shrink: 0; margin-top: 0.15rem; font-size: 0.75rem; }
    .gv-compare-cell.wiki i { color: #6e7681; }
    .gv-compare-cell.gv i { color: var(--brand-primary); }

    /* ── OPEN SOURCE BAND ── */
    .gv-oss-band {
      background: linear-gradient(135deg, #0d1117 0%, #161b22 100%);
      border-top: 1px solid var(--dark-border);
      border-bottom: 1px solid var(--dark-border);
      padding: 60px 0;
    }
    .gv-oss-band h2 {
      font-family: 'DM Serif Display', serif;
      font-size: clamp(1.6rem, 3vw, 2.2rem);
      color: #fff;
      letter-spacing: -0.02em;
      margin-bottom: 0.75rem;
    }
    .gv-oss-band p {
      color: var(--text-muted-dark);
      font-size: 0.95rem;
      line-height: 1.7;
      max-width: 480px;
    }
    .gv-btn-github {
      display: inline-flex; align-items: center; gap: 0.5rem;
      background: #fff;
      color: #0d1117;
      border-radius: var(--radius);
      padding: 0.7rem 1.4rem;
      font-size: 0.9rem;
      font-weight: 600;
      text-decoration: none;
      transition: background 0.15s;
    }
    .gv-btn-github:hover { background: #e4e7ec; color: #0d1117; }
    .gv-btn-help {
      display: inline-flex; align-items: center; gap: 0.5rem;
      background: transparent;
      color: var(--text-muted-dark);
      border: 1px solid var(--dark-border);
      border-radius: var(--radius);
      padding: 0.7rem 1.4rem;
      font-size: 0.9rem;
      font-weight: 500;
      text-decoration: none;
      transition: color 0.15s, border-color 0.15s;
    }
    .gv-btn-help:hover { color: #fff; border-color: rgba(255,255,255,0.3); }

    /* ── CTA ── */
    .gv-cta {
      padding: 100px 0;
      text-align: center;
      background: #fff;
    }
    .gv-cta h2 {
      font-family: 'DM Serif Display', serif;
      font-size: clamp(1.8rem, 3.5vw, 2.8rem);
      letter-spacing: -0.02em;
      color: #0d1117;
      margin-bottom: 0.75rem;
    }
    .gv-cta p {
      color: #5a6472;
      font-size: 1.05rem;
      max-width: 480px;
      margin: 0 auto 2rem;
      line-height: 1.7;
    }

    /* ── FOOTER ── */
    .gv-footer {
      background: var(--dark-bg);
      border-top: 1px solid var(--dark-border);
      padding: 48px 0 32px;
    }
    .gv-footer-logo {
      font-family: 'DM Serif Display', serif;
      font-size: 1.2rem;
      color: #fff;
      margin-bottom: 0.4rem;
    }
    .gv-footer-logo span { color: var(--brand-accent); }
    .gv-footer-tagline {
      font-size: 0.8rem;
      color: var(--text-muted-dark);
      line-height: 1.5;
      max-width: 240px;
    }
    .gv-footer-heading {
      font-size: 0.7rem;
      font-weight: 600;
      letter-spacing: 0.08em;
      text-transform: uppercase;
      color: #c9d1d9;
      margin-bottom: 0.75rem;
    }
    .gv-footer-links {
      list-style: none; padding: 0; margin: 0;
      display: flex; flex-direction: column; gap: 0.4rem;
    }
    .gv-footer-links a {
      color: var(--text-muted-dark);
      text-decoration: none;
      font-size: 0.85rem;
      transition: color 0.15s;
    }
    .gv-footer-links a:hover { color: #fff; }
    .gv-footer-bottom {
      border-top: 1px solid var(--dark-border);
      margin-top: 36px;
      padding-top: 20px;
      display: flex; align-items: center; justify-content: space-between;
      flex-wrap: wrap; gap: 0.5rem;
    }
    .gv-footer-bottom span {
      font-size: 0.78rem;
      color: var(--text-muted-dark);
    }

    /* ── RESPONSIVE ── */
    @media (max-width: 768px) {
      .gv-nav-links { display: none; }
      .gv-nav-links.open {
        display: flex; flex-direction: column;
        position: fixed; top: 60px; left: 0; right: 0;
        background: var(--dark-bg);
        border-bottom: 1px solid var(--dark-border);
        padding: 1rem;
        gap: 0.25rem;
      }
      .gv-hamburger { display: block; }
      .gv-hero { padding: 100px 0 60px; }
      .gv-stat-divider { display: none; }
    }

    /* ── ANIMATIONS ── */
    @keyframes fadeUp {
      from { opacity: 0; transform: translateY(20px); }
      to { opacity: 1; transform: translateY(0); }
    }
    .gv-animate { animation: fadeUp 0.6s ease both; }
    .gv-animate-d1 { animation-delay: 0.1s; }
    .gv-animate-d2 { animation-delay: 0.2s; }
    .gv-animate-d3 { animation-delay: 0.3s; }
    .gv-animate-d4 { animation-delay: 0.4s; }

    /* ══════════════════════════════════════════
       FEATURES PAGE
    ══════════════════════════════════════════ */

    /* Page hero (shared across inner pages) */
    .gv-page-hero {
      background: var(--dark-bg);
      padding: 110px 0 70px;
      position: relative; overflow: hidden;
    }
    .gv-page-hero::before {
      content: '';
      position: absolute; inset: 0;
      background: radial-gradient(ellipse 50% 60% at 70% 50%, rgba(26,115,232,0.1) 0%, transparent 70%);
      pointer-events: none;
    }
    .gv-page-hero h1 {
      font-family: 'DM Serif Display', serif;
      font-size: clamp(2rem, 4vw, 3rem);
      color: #fff; letter-spacing: -0.02em; line-height: 1.15; margin-bottom: 1rem;
    }
    .gv-page-hero p {
      font-size: 1.05rem; color: var(--text-muted-dark); line-height: 1.7; max-width: 560px; margin: 0;
    }

    /* Section dark variant */
    .gv-section-dark { background: var(--dark-bg); }

    /* Section heading variants */
    .gv-section-heading {
      font-family: 'DM Serif Display', serif;
      font-size: clamp(1.6rem, 2.5vw, 2.1rem);
      letter-spacing: -0.02em; line-height: 1.2; margin-bottom: 0.75rem;
    }
    .gv-section-heading.light { color: #fff; }
    .gv-section-heading.dark  { color: #0d1117; }

    .gv-lead { font-size: 1rem; color: #5a6472; line-height: 1.7; max-width: 480px; }
    .gv-lead.light { color: var(--text-muted-dark); }

    /* Group label pill */
    .gv-group-label {
      display: inline-flex; align-items: center; gap: 0.5rem;
      font-family: 'JetBrains Mono', monospace; font-size: 0.7rem;
      letter-spacing: 0.08em; text-transform: uppercase;
      padding: 0.25rem 0.6rem; border-radius: 4px; margin-bottom: 0.75rem;
    }
    .gv-group-label.blue   { background: rgba(26,115,232,0.1);  color: var(--brand-primary); }
    .gv-group-label.orange { background: rgba(232,113,10,0.1);  color: var(--brand-accent); }
    .gv-group-label.green  { background: rgba(22,163,74,0.1);   color: #16a34a; }
    .gv-group-label.purple { background: rgba(124,58,237,0.1);  color: #7c3aed; }
    .gv-group-label.teal   { background: rgba(13,148,136,0.1);  color: #0d9488; }
    .gv-group-label.red    { background: rgba(220,38,38,0.1);   color: #dc2626; }
    .gv-group-label.slate  { background: rgba(100,116,139,0.12);color: #64748b; }

    /* Feature checklist */
    .gv-feat-list { list-style: none; padding: 0; margin: 0; }
    .gv-feat-list li {
      display: flex; align-items: flex-start; gap: 0.65rem;
      padding: 0.55rem 0; border-bottom: 1px solid #f0f2f5;
      font-size: 0.9rem; color: #374151; line-height: 1.5;
    }
    .gv-feat-list li:last-child { border-bottom: none; }
    .gv-feat-list li i { margin-top: 0.2rem; flex-shrink: 0; font-size: 0.75rem; }
    .gv-feat-list.light li { color: #c9d1d9; border-color: rgba(48,54,61,0.5); }
    .gv-feat-list.light li:last-child { border-bottom: none; }

    /* Screenshot mock frame */
    .gv-screen-mock {
      border-radius: 10px; border: 1px solid var(--dark-border); overflow: hidden;
      box-shadow: 0 20px 60px rgba(0,0,0,0.35);
    }
    .gv-screen-mock-bar {
      background: var(--dark-surface); border-bottom: 1px solid var(--dark-border);
      padding: 0.55rem 1rem; display: flex; align-items: center; gap: 0.4rem;
    }
    .gv-screen-mock-body {
      background: #1c2128; min-height: 260px;
      display: flex; align-items: center; justify-content: center;
      color: #6e7681; font-size: 0.78rem; font-family: 'JetBrains Mono', monospace;
      flex-direction: column; gap: 0.5rem;
    }
    .gv-screen-mock-body i { font-size: 1.5rem; color: #30363d; }
    .gv-screen-mock.light { border-color: #d0d7de; box-shadow: 0 8px 32px rgba(0,0,0,0.1); }
    .gv-screen-mock.light .gv-screen-mock-bar { background: #f6f8fa; border-color: #d0d7de; }
    .gv-screen-mock.light .gv-screen-mock-body { background: #fff; color: #8c959f; }
    .gv-screen-mock.light .gv-screen-mock-body i { color: #d0d7de; }

    /* Screenshot: real image fills the mock body */
    .gv-screen-mock-body img { width: 100%; height: 100%; object-fit: cover; display: block; }

    /* Workflow steps */
    .gv-workflow { display: flex; align-items: center; gap: 0; flex-wrap: wrap; }
    .gv-wf-step {
      flex: 1; min-width: 130px;
      padding: 1.25rem 1rem; border: 1px solid #e4e7ec;
      border-radius: 8px; background: #fff; text-align: center;
    }
    .gv-wf-arrow { font-size: 1.1rem; color: #d0d7de; padding: 0 0.4rem; flex-shrink: 0; }
    .gv-wf-step-icon {
      width: 36px; height: 36px; border-radius: 50%;
      display: flex; align-items: center; justify-content: center;
      margin: 0 auto 0.6rem; font-size: 0.85rem;
    }
    .gv-wf-step-name { font-size: 0.8rem; font-weight: 600; color: #0d1117; }
    .gv-wf-step-sub  { font-size: 0.72rem; color: #8c959f; margin-top: 0.15rem; }

    /* Role permission table */
    .gv-role-wrap { background: var(--dark-bg); border: 1px solid var(--dark-border); border-radius: 10px; overflow: hidden; }
    .gv-role-table { width: 100%; border-collapse: collapse; font-size: 0.85rem; }
    .gv-role-table th {
      padding: 0.6rem 1rem; text-align: left;
      font-size: 0.7rem; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase;
      color: var(--text-muted-dark); border-bottom: 1px solid var(--dark-border);
    }
    .gv-role-table td { padding: 0.6rem 1rem; color: #c9d1d9; border-bottom: 1px solid rgba(48,54,61,0.4); }
    .gv-role-table tr:last-child td { border-bottom: none; }
    .gv-role-table td i.fa-check { color: #3fb950; }
    .gv-role-table td i.fa-minus { color: #30363d; }

    /* Ghost button for light backgrounds */
    .gv-btn-ghost-dark {
      display: inline-flex; align-items: center; gap: 0.5rem;
      background: transparent; color: #1c1e21;
      border: 1px solid #d0d7de; border-radius: var(--radius);
      padding: 0.75rem 1.5rem; font-size: 0.95rem; font-weight: 500; text-decoration: none;
      transition: border-color 0.15s;
    }
    .gv-btn-ghost-dark:hover { border-color: #9ca3af; color: #1c1e21; }

    /* Mobile adjustments for features page */
    @media (max-width: 768px) {
      .gv-workflow { flex-direction: column; }
      .gv-wf-arrow { transform: rotate(90deg); }
    }

    /* ══════════════════════════════════════════
       USE CASES PAGE
    ══════════════════════════════════════════ */

    /* Detail card inside a use case section */
    .gv-uc-card {
      background: #fff;
      border: 1px solid #e4e7ec;
      border-radius: 10px;
      padding: 1.5rem;
      height: 100%;
      transition: border-color 0.2s, box-shadow 0.2s;
    }
    .gv-uc-card:hover {
      border-color: var(--brand-primary);
      box-shadow: 0 4px 20px rgba(26,115,232,0.07);
    }
    .gv-uc-card-icon {
      width: 38px; height: 38px; border-radius: 8px;
      display: flex; align-items: center; justify-content: center;
      font-size: 1rem; margin-bottom: 0.85rem;
    }
    .gv-uc-card-title { font-size: 0.9rem; font-weight: 600; color: #0d1117; margin-bottom: 0.3rem; }
    .gv-uc-card-text  { font-size: 0.82rem; color: #5a6472; line-height: 1.6; margin: 0; }

    /* Highlight quote block */
    .gv-uc-quote {
      border-left: 3px solid var(--brand-primary);
      padding: 0.75rem 1.25rem;
      background: rgba(26,115,232,0.04);
      border-radius: 0 8px 8px 0;
      font-size: 0.9rem; color: #374151; line-height: 1.6;
      font-style: italic;
    }

    /* Use case nav tabs */
    .gv-uc-nav {
      display: flex; flex-wrap: wrap; gap: 0.5rem;
      margin-bottom: 3rem;
    }
    .gv-uc-nav a {
      font-size: 0.85rem; font-weight: 500;
      padding: 0.4rem 1rem; border-radius: 20px;
      border: 1px solid #e4e7ec;
      color: #5a6472; text-decoration: none;
      transition: all 0.15s;
    }
    .gv-uc-nav a:hover { border-color: var(--brand-primary); color: var(--brand-primary); }

    /* Section divider */
    .gv-section-divider {
      border: none; border-top: 1px solid #e4e7ec; margin: 0;
    }

    /* ══════════════════════════════════════════
       OPEN SOURCE PAGE
    ══════════════════════════════════════════ */

    /* Step list for contributing */
    .gv-steps { list-style: none; padding: 0; margin: 0; counter-reset: step; }
    .gv-steps li {
      counter-increment: step;
      display: flex; gap: 1rem; align-items: flex-start;
      padding: 1rem 0; border-bottom: 1px solid rgba(48,54,61,0.4);
      font-size: 0.9rem; color: #c9d1d9; line-height: 1.6;
    }
    .gv-steps li:last-child { border-bottom: none; }
    .gv-steps li::before {
      content: counter(step);
      flex-shrink: 0;
      width: 26px; height: 26px; border-radius: 50%;
      background: rgba(26,115,232,0.15); color: var(--brand-primary);
      font-size: 0.75rem; font-weight: 700; font-family: 'JetBrains Mono', monospace;
      display: flex; align-items: center; justify-content: center;
      margin-top: 0.1rem;
    }
    .gv-steps li strong { color: #fff; display: block; margin-bottom: 0.1rem; }

    /* License block */
    .gv-license-block {
      background: #161b22; border: 1px solid #30363d;
      border-radius: 10px; padding: 1.5rem;
      font-family: 'JetBrains Mono', monospace; font-size: 0.78rem;
      color: #8b949e; line-height: 1.75;
    }
    .gv-license-block strong { color: #c9d1d9; }

    /* Principle cards (self-hosting, MIT, no lock-in) */
    .gv-principle {
      text-align: center; padding: 2rem 1.5rem;
      border: 1px solid var(--dark-border); border-radius: 12px;
      height: 100%; transition: border-color 0.2s;
    }
    .gv-principle:hover { border-color: rgba(26,115,232,0.4); }
    .gv-principle-icon {
      width: 52px; height: 52px; border-radius: 50%;
      display: flex; align-items: center; justify-content: center;
      margin: 0 auto 1.1rem; font-size: 1.3rem;
    }
    .gv-principle-title { font-size: 1rem; font-weight: 600; color: #fff; margin-bottom: 0.5rem; }
    .gv-principle-text  { font-size: 0.85rem; color: var(--text-muted-dark); line-height: 1.65; margin: 0; }