/* ===== Landing-specific ===== */
  .hero { padding: 60px 40px 120px; position: relative; overflow: hidden; }
  .hero-grid {
    display: grid; grid-template-columns: 1.05fr 1fr; gap: 56px; align-items: center;
    max-width: 1320px; margin: 0 auto;
  }
  .eyebrow {
    display: inline-flex; align-items: center; gap: 10px;
    padding: 6px 6px 6px 14px;
    border-radius: 999px;
    background: var(--surface);
    border: 1px solid var(--border);
    font-size: 12px; color: var(--text-dim);
    backdrop-filter: blur(20px);
  }
  .eyebrow .pill {
    background: var(--grad-primary); color: #0B1020;
    padding: 4px 10px; border-radius: 999px; font-weight: 700; font-size: 11px;
    font-family: var(--font-display);
  }
  .hero h1 {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: clamp(44px, 5.4vw, 78px);
    line-height: 0.98;
    letter-spacing: -0.035em;
    margin: 22px 0 24px;
  }
  .hero h1 .grad {
    background: var(--grad-primary);
    -webkit-background-clip: text; background-clip: text;
    -webkit-text-fill-color: transparent;
  }
  .hero p.lead {
    font-size: 19px; line-height: 1.55;
    color: var(--text-dim); max-width: 540px;
    margin: 0 0 32px;
  }
  .hero-cta { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
  .hero-stats {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px;
    margin-top: 56px; max-width: 520px;
  }
  .hero-stats .num {
    font-family: var(--font-display);
    font-size: 32px; font-weight: 600; letter-spacing: -0.03em;
    background: var(--grad-primary); -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  }
  .hero-stats .lbl { font-size: 12px; color: var(--text-dim); margin-top: 4px; }

  /* Hero visual — live session preview */
  .stage {
    position: relative; aspect-ratio: 5 / 4;
    border-radius: var(--r-xl);
    padding: 16px;
    background: var(--surface);
    border: 1px solid var(--border);
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-pop);
  }
  .stage::before {
    content: ""; position: absolute; inset: -2px;
    border-radius: calc(var(--r-xl) + 2px);
    background: var(--grad-primary);
    opacity: 0.22; filter: blur(40px); z-index: -1;
  }
  .stage-frame {
    position: relative; width: 100%; height: 100%;
    border-radius: var(--r-lg);
    background:
      radial-gradient(ellipse at 50% 38%, rgba(124,92,255,0.18), transparent 60%),
      linear-gradient(180deg, #14172B 0%, #0B1020 100%);
    overflow: hidden;
    border: 1px solid var(--border);
  }
  /* Camera content — abstract speaker */
  .speaker-silhouette {
    position: absolute; left: 50%; top: 56%;
    transform: translate(-50%, -50%);
    width: 64%; aspect-ratio: 1/1;
  }
  .speaker-silhouette svg { width: 100%; height: 100%; }
  .stage-toolbar {
    position: absolute; top: 14px; left: 14px; right: 14px;
    display: flex; align-items: center; justify-content: space-between;
    z-index: 4;
  }
  .stage-toolbar .l, .stage-toolbar .r { display: flex; gap: 8px; align-items: center; }
  .stage-rec {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 6px 12px; border-radius: 999px;
    background: rgba(0,0,0,0.45);
    border: 1px solid rgba(255,255,255,0.12);
    font-family: var(--font-mono);
    font-size: 11px; color: var(--text);
    backdrop-filter: blur(8px);
  }
  .stage-rec .dot-live { width: 7px; height: 7px; border-radius: 999px; background: #FF6B6B; }

  /* Floating metric cards */
  .float {
    position: absolute;
    background: rgba(11, 16, 32, 0.72);
    border: 1px solid var(--border-strong);
    border-radius: var(--r-md);
    padding: 12px 14px;
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-card);
    z-index: 6;
    animation: floatY 5s ease-in-out infinite;
  }
  [data-theme="light"] .float { background: rgba(255,255,255,0.92); }
  .float .lbl { font-size: 10px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--text-faint); font-family: var(--font-mono); }
  .float .val { font-family: var(--font-display); font-size: 22px; font-weight: 600; letter-spacing: -0.02em; margin-top: 4px; }
  .float .sub { font-size: 11px; color: var(--text-dim); margin-top: 4px; }
  .float-wpm { left: -14px; top: 18%; animation-delay: 0s; }
  .float-fill { right: -8px; top: 45%; animation-delay: -2.5s; }
  .float-tip {
    right: -26px; top: 65%; max-width: 240px; padding: 14px;
    animation-delay: -1.8s;
  }
  .float-tip .head { display: flex; align-items: center; gap: 8px; margin-bottom: 6px; font-size: 11px; color: var(--cyan-soft); font-family: var(--font-mono); letter-spacing: 0.12em; text-transform: uppercase; }
  .float-tip .head svg { width: 14px; height: 14px; }
  .float-tip .msg { font-size: 13px; line-height: 1.45; color: var(--text); }
  @keyframes floatY {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-6px); }
  }
  /* mini meters */
  .meter { height: 4px; background: var(--surface-3); border-radius: 999px; overflow: hidden; margin-top: 8px; }
  .meter > i { display: block; height: 100%; background: var(--grad-primary); border-radius: 999px; }
  .waveform { display: flex; align-items: end; gap: 3px; height: 26px; margin-top: 6px; }
  .waveform i { display: block; width: 3px; background: var(--cyan); border-radius: 2px; opacity: .9; animation: wv 1.1s ease-in-out infinite; }
  .waveform i:nth-child(odd) { background: var(--violet); }
  @keyframes wv { 0%,100% { height: 30%; } 50% { height: 100%; } }

  /* Transcript ticker */
  .transcript-strip {
    position: absolute; left: 14px; right: 14px; bottom: 14px;
    background: rgba(0,0,0,0.55);
    border: 1px solid var(--border);
    border-radius: var(--r-md);
    padding: 10px 14px;
    font-size: 13px; line-height: 1.4;
    backdrop-filter: blur(10px);
    z-index: 5;
  }
  .transcript-strip .who { font-family: var(--font-mono); font-size: 10px; color: var(--cyan-soft); letter-spacing: 0.14em; text-transform: uppercase; margin-bottom: 4px; }

  /* === Section general === */
  .sec-head { display: flex; flex-direction: column; align-items: center; text-align: center; max-width: 740px; margin: 0 auto 56px; }
  .sec-head h2 { font-family: var(--font-display); font-weight: 600; font-size: clamp(32px, 3.4vw, 52px); letter-spacing: -0.03em; line-height: 1.05; margin: 16px 0 14px; }
  .sec-head h2 .grad { background: var(--grad-primary); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
  .sec-head p { color: var(--text-dim); font-size: 17px; line-height: 1.55; max-width: 600px; margin: 0; }

  /* Features */
  .features { display: grid; grid-template-columns: repeat(12, 1fr); gap: 20px; }
  .feature { grid-column: span 4; padding: 28px; border-radius: var(--r-lg); background: var(--surface); border: 1px solid var(--border); backdrop-filter: blur(18px); position: relative; overflow: hidden; }
  .feature.wide { grid-column: span 6; }
  .feature.large { grid-column: span 6; min-height: 320px; }
  .feature .ico { width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center; background: var(--surface-3); border: 1px solid var(--border-strong); margin-bottom: 18px; }
  .feature .ico svg { width: 22px; height: 22px; }
  .feature h3 { font-family: var(--font-display); font-weight: 600; font-size: 20px; letter-spacing: -0.02em; margin: 0 0 8px; }
  .feature p { color: var(--text-dim); font-size: 14px; line-height: 1.55; margin: 0; }
  .feature .accent { position: absolute; right: -40px; bottom: -40px; width: 180px; height: 180px; border-radius: 100%; filter: blur(40px); opacity: .35; }

  /* How it works — 3 steps */
  .steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
  .step { padding: 28px; border-radius: var(--r-lg); background: var(--surface); border: 1px solid var(--border); backdrop-filter: blur(18px); position: relative; }
  .step .n { font-family: var(--font-display); font-size: 12px; color: var(--violet-soft); letter-spacing: 0.18em; }
  .step h3 { font-family: var(--font-display); font-weight: 600; font-size: 22px; letter-spacing: -0.02em; margin: 10px 0 10px; }
  .step p { color: var(--text-dim); font-size: 14px; line-height: 1.55; margin: 0 0 18px; }
  .step .art {
    height: 140px; border-radius: var(--r-md);
    background: linear-gradient(180deg, var(--surface-2), var(--surface));
    border: 1px solid var(--border); position: relative; overflow: hidden;
    display: grid; place-items: center;
  }

  /* Scenarios */
  .scenarios { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
  .scn { aspect-ratio: 3/4; border-radius: var(--r-lg); background: var(--surface); border: 1px solid var(--border); padding: 22px; position: relative; overflow: hidden; display: flex; flex-direction: column; justify-content: space-between; transition: transform .25s, border-color .2s; }
  .scn:hover { transform: translateY(-4px); border-color: var(--border-strong); }
  .scn .scn-art { position: absolute; inset: 0; opacity: .65; }
  .scn .scn-meta { position: relative; }
  .scn h4 { font-family: var(--font-display); font-weight: 600; font-size: 22px; letter-spacing: -0.02em; margin: 8px 0 4px; }
  .scn .sub { font-size: 13px; color: var(--text-dim); line-height: 1.5; }
  .scn .top { display: flex; justify-content: space-between; align-items: start; position: relative; }
  .scn .difficulty { font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.14em; color: var(--text-faint); text-transform: uppercase; }

  /* Metric showcase */
  .metric-row { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
  .metric-card {
    padding: 28px; border-radius: var(--r-lg);
    background: var(--surface); border: 1px solid var(--border);
    backdrop-filter: blur(20px);
  }
  .metric-list { display: flex; flex-direction: column; gap: 14px; }
  .metric-item { display: flex; gap: 16px; padding: 18px; border-radius: var(--r-md); background: var(--surface); border: 1px solid var(--border); transition: border-color .2s; cursor: default; }
  .metric-item:hover { border-color: var(--border-strong); }
  .metric-item .ic { width: 40px; height: 40px; border-radius: 10px; display: grid; place-items: center; flex-shrink: 0; background: var(--surface-3); border: 1px solid var(--border); }
  .metric-item h4 { font-family: var(--font-display); font-size: 16px; font-weight: 600; margin: 0 0 4px; letter-spacing: -0.01em; }
  .metric-item p { font-size: 13px; color: var(--text-dim); line-height: 1.5; margin: 0; }

  /* CTA */
  .cta {
    position: relative; overflow: hidden;
    padding: 80px 56px;
    border-radius: var(--r-xl);
    background:
      radial-gradient(800px 300px at 20% 30%, rgba(124,92,255,0.25), transparent 60%),
      radial-gradient(800px 300px at 90% 80%, rgba(34,211,238,0.18), transparent 60%),
      var(--surface);
    border: 1px solid var(--border);
    text-align: center;
  }
  .cta h2 { font-family: var(--font-display); font-weight: 600; font-size: clamp(36px, 4vw, 56px); letter-spacing: -0.03em; margin: 0 0 18px; line-height: 1.05; }
  .cta p { color: var(--text-dim); font-size: 17px; line-height: 1.55; max-width: 560px; margin: 0 auto 32px; }

  /* Footer */
  footer { padding: 40px; color: var(--text-faint); border-top: 1px solid var(--border); margin-top: 40px; }
  footer .row { display: flex; justify-content: space-between; align-items: center; max-width: 1280px; margin: 0 auto; flex-wrap: wrap; gap: 16px; }
  footer .links { display: flex; gap: 24px; font-size: 13px; }
  footer .links a:hover { color: var(--text); }

  /* Theme + language switcher (replaces design-tool tweaks panel) */
  .nav-tools { display: flex; align-items: center; gap: 8px; }
  .lang-seg {
    display: inline-flex; padding: 3px; gap: 2px;
    background: var(--surface); border: 1px solid var(--border);
    border-radius: var(--r-pill); backdrop-filter: blur(20px);
  }
  .lang-seg button {
    appearance: none; border: 0; background: transparent; cursor: pointer;
    font-family: var(--font-display); font-weight: 600; font-size: 12px;
    color: var(--text-dim); padding: 5px 11px; border-radius: var(--r-pill);
    transition: color .15s, background .2s;
  }
  .lang-seg button:hover { color: var(--text); }
  .lang-seg button[aria-pressed="true"] { background: var(--surface-2); color: var(--text); border: 1px solid var(--border-strong); }
  .theme-toggle {
    appearance: none; cursor: pointer; width: 36px; height: 36px;
    display: grid; place-items: center; border-radius: var(--r-pill);
    background: var(--surface); border: 1px solid var(--border-strong);
    color: var(--text); backdrop-filter: blur(12px); transition: background .2s;
  }
  .theme-toggle:hover { background: var(--surface-2); }
  .theme-toggle svg { width: 17px; height: 17px; }
  .theme-toggle .ico-sun { display: none; }
  [data-theme="light"] .theme-toggle .ico-sun { display: block; }
  [data-theme="light"] .theme-toggle .ico-moon { display: none; }

  @media (max-width: 1080px) {
    .hero-grid { grid-template-columns: 1fr; }
    .features .feature { grid-column: span 6; }
    .scenarios { grid-template-columns: repeat(2, 1fr); }
    .metric-row { grid-template-columns: 1fr; }
    .steps { grid-template-columns: 1fr; }
  }
  @media (max-width: 640px) {
    .section { padding: 56px 20px; }
    .topnav { padding: 14px 20px; }
    .topnav nav { display: none; }
    .features .feature { grid-column: span 12; }
    .scenarios { grid-template-columns: 1fr; }
  }