/* Shared design system for every marketing page (index.html, features.html).
   Kept in one file so the two pages cannot drift apart visually. */
:root {
    /* Navy-blue-led palette: everything lives in one blue family (no cyan/teal hue), so navy
       reads as the dominant color throughout rather than a dark backdrop for a bright accent. */
    --navy-950: #050b17;
    --navy-900: #081226;
    --navy-850: #0a1730;
    --navy-800: #0d1e3d;
    --navy-700: #122a51;
    --navy-600: #193962;
    --blue: #4d7fe0;
    --blue-soft: #9db8ee;
    --blue-deep: #1e3f82;
    --white: #ffffff;
    --white-80: rgba(255,255,255,.80);
    --white-60: rgba(255,255,255,.60);
    --white-40: rgba(255,255,255,.40);
    --border: rgba(140,170,230,.14);
  }
  * { box-sizing: border-box; }
  html { scroll-behavior: smooth; }
  body {
    margin: 0;
    background: var(--navy-900);
    color: var(--white);
    font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    -webkit-font-smoothing: antialiased;
  }
  a { color: inherit; text-decoration: none; }
  .wrap { max-width: 1180px; margin: 0 auto; padding: 0 24px; }
  .eyebrow {
    display: inline-block;
    color: var(--blue-soft);
    font-weight: 700;
    font-size: 14px;
    letter-spacing: .12em;
    text-transform: uppercase;
    margin-bottom: 14px;
  }
  h1, h2, h3 { font-weight: 800; line-height: 1.1; margin: 0; }
  .serif { font-family: "Playfair Display", serif; font-weight: 700; }
  p { color: var(--white-80); line-height: 1.6; }

  /* ---------- background texture ---------- */
  .grain {
    position: relative;
    background-image:
      linear-gradient(rgba(77,127,224,.07) 1px, transparent 1px),
      linear-gradient(90deg, rgba(77,127,224,.07) 1px, transparent 1px);
    background-size: 42px 42px;
    background-position: center top;
  }
  .fade-bottom::after {
    content: "";
    position: absolute; left: 0; right: 0; bottom: 0; height: 160px;
    background: linear-gradient(to bottom, transparent, var(--navy-900));
    pointer-events: none;
  }

  /* ---------- nav ---------- */
  header {
    position: sticky; top: 0; z-index: 50;
    background: rgba(8,18,38,.88);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
  }
  nav { display: flex; align-items: center; justify-content: space-between; height: 76px; }
  .logo { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 19px; letter-spacing: .01em; }
  .logo-mark {
    width: 34px; height: 34px; border-radius: 9px;
    background: linear-gradient(135deg, var(--blue), var(--blue-deep));
    display: flex; align-items: center; justify-content: center;
    font-size: 18px;
  }
  .nav-links { display: flex; align-items: center; gap: 36px; }
  .nav-links a { font-size: 15px; font-weight: 600; color: var(--white-60); transition: color .15s; }
  .nav-links a:hover { color: var(--white); }
  .nav-actions { display: flex; align-items: center; gap: 12px; }
  .btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    padding: 12px 24px; border-radius: 999px; font-weight: 700; font-size: 15px;
    border: 1px solid transparent; cursor: pointer; transition: transform .15s, background .15s, border-color .15s;
    white-space: nowrap;
  }
  .btn:hover { transform: translateY(-1px); }
  .btn-primary { background: var(--blue); color: var(--white); }
  .btn-primary:hover { background: var(--blue-soft); color: var(--navy-950); }
  .btn-ghost { border-color: rgba(157,184,238,.3); color: var(--white); }
  .btn-ghost:hover { border-color: var(--white); }
  .btn-sm { padding: 9px 18px; font-size: 14px; }
  .menu-toggle { display: none; background: none; border: none; color: var(--white); font-size: 26px; cursor: pointer; }

  /* ---------- hero ---------- */
  .hero { position: relative; padding: 88px 0 60px; overflow: hidden; }
  .hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 48px; align-items: center; }
  .hero h1 { font-size: 54px; letter-spacing: -.02em; margin-bottom: 22px; }
  .hero h1 span { color: var(--blue-soft); }
  .hero p.lead { font-size: 19px; max-width: 480px; margin-bottom: 32px; }
  .hero-ctas { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; }
  .hero-ctas .link-arrow { font-weight: 700; font-size: 15px; color: var(--white); display: inline-flex; align-items: center; gap: 6px; }

  .mock-stat-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-top: 8px; }
  .mock-stat { background: rgba(157,184,238,.04); border: 1px solid var(--border); border-radius: 10px; padding: 12px; }
  .mock-stat b { display: block; font-size: 22px; }
  .mock-stat span { font-size: 12px; color: var(--white-60); }

  /* ---------- hero cockpit ---------- */
  .cockpit {
    position: relative; border-radius: 20px; border: 1px solid var(--border);
    background: linear-gradient(160deg, var(--navy-800), var(--navy-950));
    box-shadow: 0 40px 100px -30px rgba(0,0,0,.7);
    padding: 16px; overflow: hidden;
  }
  .cockpit-hud {
    display: flex; align-items: center; gap: 8px; padding: 2px 4px 14px;
    font-size: 12px; font-weight: 700; letter-spacing: .1em; color: var(--white-40); text-transform: uppercase;
  }
  .cockpit-hud .hud-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--blue-soft); box-shadow: 0 0 8px 1px var(--blue-soft); }
  .cockpit-hud .hud-live { margin-left: auto; color: #34d399; display: flex; align-items: center; gap: 5px; }
  .cockpit-hud .hud-live::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: #34d399; animation: blink 1.6s infinite; }

  .cockpit-map {
    position: relative; height: 220px; border-radius: 14px; overflow: hidden;
    background: radial-gradient(circle, rgba(157,184,238,.16) 1px, transparent 1px) 0 0 / 15px 15px, var(--navy-950);
    border: 1px solid var(--border);
  }
  .radar-sweep {
    position: absolute; top: 50%; left: 50%; width: 340px; height: 340px; margin: -170px 0 0 -170px;
    background: conic-gradient(from 0deg, rgba(77,127,224,.4), transparent 22%, transparent 100%);
    animation: spin 5s linear infinite;
  }
  @keyframes spin { to { transform: rotate(360deg); } }
  .hub { position: absolute; }
  .hub-pulse {
    display: block; width: 7px; height: 7px; border-radius: 50%; background: var(--blue-soft);
    box-shadow: 0 0 0 0 rgba(157,184,238,.6); animation: pulse 2.2s infinite;
  }
  .hub.warn .hub-pulse { background: #fbbf24; animation-name: pulse-amber; }
  .hub-label {
    position: absolute; top: 12px; left: 50%; transform: translateX(-50%);
    font-size: 10px; font-weight: 600; color: var(--white-60); white-space: nowrap;
  }
  @keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(157,184,238,.55); }
    70% { box-shadow: 0 0 0 11px rgba(157,184,238,0); }
    100% { box-shadow: 0 0 0 0 rgba(157,184,238,0); }
  }
  @keyframes pulse-amber {
    0% { box-shadow: 0 0 0 0 rgba(251,191,36,.55); }
    70% { box-shadow: 0 0 0 11px rgba(251,191,36,0); }
    100% { box-shadow: 0 0 0 0 rgba(251,191,36,0); }
  }
  @keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: .3; } }
  .corner { position: absolute; width: 16px; height: 16px; border-color: rgba(157,184,238,.5); pointer-events: none; }
  .corner.tl { top: 8px; left: 8px; border-top: 2px solid; border-left: 2px solid; border-radius: 4px 0 0 0; }
  .corner.tr { top: 8px; right: 8px; border-top: 2px solid; border-right: 2px solid; border-radius: 0 4px 0 0; }
  .corner.bl { bottom: 8px; left: 8px; border-bottom: 2px solid; border-left: 2px solid; border-radius: 0 0 0 4px; }
  .corner.br { bottom: 8px; right: 8px; border-bottom: 2px solid; border-right: 2px solid; border-radius: 0 0 4px 0; }

  .cockpit-ticker { padding: 12px 4px 6px; }
  .tick { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--white-60); padding: 4px 0; }
  .tick b { color: var(--white); font-weight: 600; }
  .tick-dot { width: 6px; height: 6px; border-radius: 50%; flex-shrink: 0; }
  .tick-dot.blue { background: var(--blue-soft); }
  .tick-dot.amber { background: #fbbf24; }
  .tick-dot.green { background: #34d399; }

  /* ---------- stats bar ---------- */
  .stats-bar { border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); padding: 40px 0; background: var(--navy-850); }
  .stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; text-align: center; }
  .stats-grid b { display: block; font-size: 36px; color: var(--blue-soft); font-weight: 800; }
  .stats-grid span { font-size: 14px; color: var(--white-60); font-weight: 600; }

  /* ---------- section shell ---------- */
  section { padding: 96px 0; }
  .section-head { max-width: 640px; margin-bottom: 56px; }
  .section-head h2 { font-size: 40px; letter-spacing: -.01em; margin-bottom: 16px; }
  .section-head p { font-size: 17px; }

  /* ---------- features ---------- */
  .feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
  .feature-card {
    background: var(--navy-800); border: 1px solid var(--border); border-radius: 18px;
    padding: 28px; transition: border-color .2s, transform .2s;
  }
  .feature-card:hover { border-color: rgba(77,127,224,.45); transform: translateY(-3px); }
  .feature-icon {
    width: 44px; height: 44px; border-radius: 12px; background: rgba(77,127,224,.16);
    display: flex; align-items: center; justify-content: center; font-size: 22px; margin-bottom: 18px;
  }
  .feature-card h3 { font-size: 19px; margin-bottom: 10px; }
  .feature-card p { font-size: 15px; }

  /* ---------- spotlight (deep-dive) features ---------- */
  .spotlight-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-bottom: 22px; }
  .spotlight-card {
    background: linear-gradient(160deg, var(--navy-800), var(--navy-850));
    border: 1px solid var(--border); border-radius: 18px;
    padding: 32px; display: flex; flex-direction: column; gap: 14px;
  }
  .spotlight-card .feature-icon { background: rgba(77,127,224,.22); margin-bottom: 4px; }
  .spotlight-card h3 { font-size: 20px; }
  .spotlight-card p { font-size: 15px; }
  .spotlight-card ul { display: flex; flex-direction: column; gap: 8px; margin-top: 4px; }
  .spotlight-card li { font-size: 14px; color: var(--white-60); padding-left: 18px; position: relative; }
  .spotlight-card li::before { content: "→"; position: absolute; left: 0; top: 0; color: var(--blue-soft); }

  /* ---------- remaining features (compact grouped list) ---------- */
  .more-features { margin-top: 12px; }
  .more-features-head { font-size: 14px; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; color: var(--white-40); margin-bottom: 22px; }
  .more-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
  .more-col h4 { font-size: 14px; font-weight: 800; letter-spacing: .04em; text-transform: uppercase; color: var(--blue-soft); margin-bottom: 16px; }
  .more-list { display: flex; flex-direction: column; gap: 14px; }
  .more-item b { display: block; font-size: 15px; margin-bottom: 2px; }
  .more-item span { font-size: 14px; color: var(--white-60); }

  /* ---------- screenshots / in-action ---------- */
  .screens { background: var(--navy-950); }
  .screen-tabs { display: flex; gap: 10px; margin-bottom: 32px; flex-wrap: wrap; }
  .screen-tab {
    padding: 9px 18px; border-radius: 999px; font-size: 14px; font-weight: 700;
    background: var(--navy-800); border: 1px solid var(--border); color: var(--white-60);
    font-family: inherit; cursor: pointer; transition: background .15s, color .15s, border-color .15s;
  }
  .screen-tab:hover { border-color: rgba(157,184,238,.4); color: var(--white); }
  .screen-tab.active { background: var(--blue); color: var(--white); border-color: var(--blue); }
  .screen-frame {
    border-radius: 20px; border: 1px solid var(--border); overflow: hidden;
    background: var(--navy-850); box-shadow: 0 50px 120px -40px rgba(0,0,0,.8);
  }
  .screen-chrome { display: flex; align-items: center; gap: 8px; padding: 12px 16px; background: var(--navy-800); border-bottom: 1px solid var(--border); }
  .screen-chrome span { width: 9px; height: 9px; border-radius: 50%; background: rgba(255,255,255,.18); }
  .screen-chrome .url { margin-left: 12px; font-size: 13px; color: var(--white-40); font-family: monospace; }
  .screen-shots { position: relative; }
  .screen-frame .screen-shot { display: none; width: 100%; height: auto; }
  .screen-frame .screen-shot.active { display: block; }

  /* ---------- pricing ---------- */
  .pricing { background: var(--navy-900); }
  .price-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; align-items: start; }
  .price-card {
    background: var(--navy-800); border: 1px solid var(--border); border-radius: 18px;
    padding: 32px; display: flex; flex-direction: column; gap: 18px; position: relative;
  }
  .price-card.featured { border-color: rgba(77,127,224,.55); background: linear-gradient(165deg, var(--navy-700), var(--navy-800)); }
  .price-badge {
    position: absolute; top: -11px; left: 32px; background: var(--blue); color: var(--white);
    font-size: 12px; font-weight: 800; letter-spacing: .06em; text-transform: uppercase;
    padding: 4px 12px; border-radius: 999px;
  }
  .price-card h3 { font-size: 19px; }
  .price-amount { display: flex; align-items: baseline; gap: 6px; }
  .price-amount b { font-size: 40px; font-weight: 800; letter-spacing: -.02em; }
  .price-amount span { font-size: 15px; color: var(--white-60); }
  .price-card > p { font-size: 15px; min-height: 42px; }
  .price-card ul { display: flex; flex-direction: column; gap: 10px; }
  .price-card li { font-size: 15px; color: var(--white-80); padding-left: 24px; position: relative; }
  .price-card li::before { content: "✓"; position: absolute; left: 0; color: var(--blue-soft); font-weight: 700; }
  .price-card li.muted { color: var(--white-40); }
  .price-card li.muted::before { content: "—"; color: var(--white-40); }
  .price-note { margin-top: 28px; font-size: 14px; color: var(--white-60); max-width: 720px; }

  /* ---------- confidentiality split ---------- */
  .split-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
  .split-card { border-radius: 18px; padding: 32px; border: 1px solid var(--border); }
  .split-card.shared { background: var(--navy-800); }
  .split-card.private { background: linear-gradient(165deg, var(--navy-700), var(--navy-850)); border-color: rgba(77,127,224,.4); }
  .split-card h3 { font-size: 18px; margin-bottom: 10px; display: flex; align-items: center; gap: 10px; }
  .split-card p { font-size: 15px; margin-bottom: 14px; }
  .split-card ul { display: flex; flex-direction: column; gap: 8px; }
  .split-card li { font-size: 14px; color: var(--white-60); padding-left: 18px; position: relative; }
  .split-card li::before { content: "•"; position: absolute; left: 2px; color: var(--blue-soft); }

  /* ---------- audience ---------- */
  .audience { background: var(--navy-900); }
  .audience-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
  .audience-chip {
    display: flex; align-items: center; gap: 12px;
    background: var(--navy-800); border: 1px solid var(--border); border-radius: 14px; padding: 18px 20px;
    font-weight: 700; font-size: 16px;
  }
  .audience-chip .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--blue); flex-shrink: 0; }

  /* ---------- how it works ---------- */
  .steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; counter-reset: step; }
  .step { position: relative; padding-top: 8px; }
  .step .num {
    font-family: "Playfair Display", serif; font-size: 44px; color: rgba(77,127,224,.4); font-weight: 700; margin-bottom: 10px; display: block;
  }
  .step h3 { font-size: 17px; margin-bottom: 8px; }
  .step p { font-size: 15px; }

  /* ---------- final cta ---------- */
  .cta-panel {
    background: linear-gradient(135deg, var(--navy-700), var(--navy-950));
    border: 1px solid var(--border); border-radius: 28px;
    padding: 64px; text-align: center; position: relative; overflow: hidden;
  }
  .cta-panel h2 { font-size: 36px; margin-bottom: 16px; }
  .cta-panel p { font-size: 17px; max-width: 520px; margin: 0 auto 32px; }

  footer { border-top: 1px solid var(--border); padding: 40px 0; }
  .footer-row { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 16px; }
  .footer-links { display: flex; gap: 28px; }
  .footer-links a { font-size: 14px; color: var(--white-60); }
  .footer-links a:hover { color: var(--white); }
  .copyright { font-size: 14px; color: var(--white-40); }

  .mobile-menu {
    display: none; flex-direction: column; gap: 2px; padding: 12px 0 18px;
    border-top: 1px solid var(--border);
  }
  .mobile-menu a {
    padding: 12px 6px; font-size: 16px; font-weight: 600; color: var(--white-80); border-radius: 8px;
  }
  .mobile-menu a:hover { background: var(--navy-800); color: var(--white); }
  .mobile-menu.open { display: flex; }

  @media (max-width: 900px) {
    .nav-links, .nav-actions .btn-ghost { display: none; }
    .menu-toggle { display: block; }
    .hero-grid { grid-template-columns: 1fr; }
    .hero h1 { font-size: 38px; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 28px 16px; }
    .feature-grid { grid-template-columns: 1fr 1fr; }
    .price-grid { grid-template-columns: 1fr; }
    .split-grid { grid-template-columns: 1fr; }
    .spotlight-grid { grid-template-columns: 1fr; }
    .more-grid { grid-template-columns: 1fr; gap: 24px; }
    .audience-grid { grid-template-columns: 1fr; }
    .steps { grid-template-columns: 1fr 1fr; }
    .cta-panel { padding: 40px 24px; }
    .cta-panel h2 { font-size: 28px; }
  }
  @media (max-width: 560px) {
    .feature-grid { grid-template-columns: 1fr; }
    .steps { grid-template-columns: 1fr; }
    section { padding: 64px 0; }
  }

/* ---------- features preview (home) ---------- */
.preview-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.preview-card {
  background: var(--navy-800); border: 1px solid var(--border); border-radius: 16px;
  padding: 24px; transition: border-color .2s, transform .2s;
}
.preview-card:hover { border-color: rgba(77,127,224,.45); transform: translateY(-2px); }
.preview-card .feature-icon { width: 38px; height: 38px; font-size: 18px; margin-bottom: 14px; }
.preview-card h3 { font-size: 17px; margin-bottom: 6px; }
.preview-card p { font-size: 14px; }
.preview-cta { margin-top: 32px; display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.preview-cta .count { font-size: 14px; color: var(--white-60); }

/* ---------- features detail page ---------- */
.feature-hero { padding: 72px 0 48px; }
.feature-hero h1 { font-size: 48px; letter-spacing: -.02em; margin-bottom: 18px; }
.feature-hero p { font-size: 19px; max-width: 640px; }

.toc { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 30px; }
.toc a {
  padding: 9px 17px; border-radius: 999px; font-size: 15px; font-weight: 600;
  background: var(--navy-800); border: 1px solid var(--border); color: var(--white-80);
  transition: border-color .15s, color .15s;
}
.toc a:hover { border-color: rgba(157,184,238,.5); color: var(--white); }

.fgroup { padding: 56px 0; border-top: 1px solid var(--border); scroll-margin-top: 90px; }
.fgroup > .wrap > .eyebrow { margin-bottom: 8px; }
.fgroup h2 { font-size: 36px; margin-bottom: 12px; }
.fgroup > .wrap > p.intro { font-size: 18px; max-width: 700px; margin-bottom: 36px; }

.fitem { display: grid; grid-template-columns: 215px 1fr; gap: 28px; padding: 26px 0; border-top: 1px solid var(--border); }
.fitem:first-of-type { border-top: none; }
.fitem-head h3 { font-size: 20px; margin-bottom: 8px; }
.fitem-head .tag {
  display: inline-block; font-size: 12px; font-weight: 700; letter-spacing: .05em; text-transform: uppercase;
  color: var(--blue-soft); background: rgba(77,127,224,.12); border-radius: 999px; padding: 3px 10px;
}
.fitem-body p { font-size: 17px; margin-bottom: 12px; }
.fitem-body ul { display: flex; flex-direction: column; gap: 9px; }
.fitem-body li { font-size: 16px; color: var(--white-60); padding-left: 18px; position: relative; }
.fitem-body li::before { content: "→"; position: absolute; left: 0; color: var(--blue-soft); }
.fitem-body .why {
  margin-top: 14px; font-size: 16px; color: var(--white-80); line-height: 1.55;
  border-left: 2px solid rgba(77,127,224,.5); padding-left: 12px;
}

@media (max-width: 900px) {
  .preview-grid { grid-template-columns: 1fr 1fr; }
  .fitem { grid-template-columns: 1fr; gap: 12px; }
  .feature-hero h1 { font-size: 34px; }
}
@media (max-width: 560px) {
  .preview-grid { grid-template-columns: 1fr; }
}

/* ---------- feature screenshots ---------- */
.fshot {
  display: block; width: 100%; height: auto; margin-top: 18px;
  border-radius: 12px; border: 1px solid var(--border);
  box-shadow: 0 24px 60px -28px rgba(0,0,0,.75);
}
.fshot-note { margin-top: 8px; font-size: 13px; color: var(--white-40); }

.hero-shot {
  display: block; width: 100%; height: auto; margin-top: 36px;
  border-radius: 16px; border: 1px solid var(--border);
  box-shadow: 0 40px 100px -35px rgba(0,0,0,.8);
}