:root {
      --paper: #F1EFE6;
      --paper-raised: #FBFAF5;
      --ink: #132A2E;
      --ink-soft: #52686B;
      --line: rgba(19, 42, 46, 0.14);
      --line-strong: rgba(19, 42, 46, 0.26);
      --blue: #2C5F7C;
      --blue-soft: #DCE7EC;
      --green: #3E7A5E;
      --green-soft: #E1EEE6;
      --gold: #B4772A;
      --gold-soft: #F3E3C6;
      --alert: #A8452F;
      --alert-soft: #F3DED7;
      --shadow: 0 40px 70px -35px rgba(19, 42, 46, 0.35), 0 10px 24px -12px rgba(19, 42, 46, 0.25);
      --radius-lg: 28px;
      --radius-md: 16px;
      --font-display: 'Fraunces', serif;
      --font-body: 'Public Sans', sans-serif;
      --font-mono: 'IBM Plex Mono', monospace;
    }

    @media (prefers-color-scheme: dark) {
      :root {
        --paper: #0F1E20;
        --paper-raised: #17282A;
        --ink: #ECE7DB;
        --ink-soft: #9FB2B3;
        --line: rgba(236, 231, 219, 0.14);
        --line-strong: rgba(236, 231, 219, 0.26);
        --blue: #86B4CC;
        --blue-soft: rgba(134, 180, 204, 0.14);
        --green: #7EBB9B;
        --green-soft: rgba(126, 187, 155, 0.14);
        --gold: #E3A94E;
        --gold-soft: rgba(227, 169, 78, 0.16);
        --alert: #E08A6E;
        --alert-soft: rgba(224, 138, 110, 0.16);
        --shadow: 0 40px 70px -35px rgba(0, 0, 0, 0.6), 0 10px 24px -12px rgba(0, 0, 0, 0.5);
      }
    }

    :root[data-theme="dark"] {
      --paper: #0F1E20;
      --paper-raised: #17282A;
      --ink: #ECE7DB;
      --ink-soft: #9FB2B3;
      --line: rgba(236, 231, 219, 0.14);
      --line-strong: rgba(236, 231, 219, 0.26);
      --blue: #86B4CC;
      --blue-soft: rgba(134, 180, 204, 0.14);
      --green: #7EBB9B;
      --green-soft: rgba(126, 187, 155, 0.14);
      --gold: #E3A94E;
      --gold-soft: rgba(227, 169, 78, 0.16);
      --alert: #E08A6E;
      --alert-soft: rgba(224, 138, 110, 0.16);
      --shadow: 0 40px 70px -35px rgba(0, 0, 0, 0.6), 0 10px 24px -12px rgba(0, 0, 0, 0.5);
    }

    :root[data-theme="light"] {
      --paper: #F1EFE6;
      --paper-raised: #FBFAF5;
      --ink: #132A2E;
      --ink-soft: #52686B;
      --line: rgba(19, 42, 46, 0.14);
      --line-strong: rgba(19, 42, 46, 0.26);
      --blue: #2C5F7C;
      --blue-soft: #DCE7EC;
      --green: #3E7A5E;
      --green-soft: #E1EEE6;
      --gold: #B4772A;
      --gold-soft: #F3E3C6;
      --alert: #A8452F;
      --alert-soft: #F3DED7;
      --shadow: 0 40px 70px -35px rgba(19, 42, 46, 0.35), 0 10px 24px -12px rgba(19, 42, 46, 0.25);
    }

    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; overflow-x: hidden; }

    body {
      margin: 0;
      background: var(--paper);
      color: var(--ink);
      font-family: var(--font-body);
      line-height: 1.55;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

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

    a { color: inherit; }

    h1, h2, h3 {
      font-family: var(--font-display);
      font-weight: 600;
      letter-spacing: -0.01em;
      text-wrap: balance;
      margin: 0;
    }

    .eyebrow {
      font-family: var(--font-mono);
      font-size: 0.78rem;
      letter-spacing: 0.08em;
      text-transform: uppercase;
      color: var(--ink-soft);
      font-variant-numeric: tabular-nums;
    }

    .wrap {
      max-width: 1120px;
      margin: 0 auto;
      padding: 0 clamp(20px, 4vw, 48px);
    }

    a:focus-visible,
    button:focus-visible {
      outline: 2px solid var(--blue);
      outline-offset: 3px;
    }

    /* ---------- Nav ---------- */
    .nav {
      position: sticky;
      top: 0;
      z-index: 40;
      background: color-mix(in srgb, var(--paper) 88%, transparent);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid var(--line);
    }
    .nav-row {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      padding: 16px clamp(16px, 4vw, 48px);
      max-width: 1120px;
      margin: 0 auto;
    }
    .brand {
      display: flex;
      align-items: center;
      gap: 10px;
      font-family: var(--font-display);
      font-weight: 600;
      font-size: 1.25rem;
      text-decoration: none;
      color: var(--ink);
      flex: none;
    }
    .brand-icon {
      flex: none;
      border-radius: 7px;
      box-shadow: 0 1px 3px rgba(19, 42, 46, 0.22);
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 28px;
      font-size: 0.95rem;
    }
    .nav-links a { text-decoration: none; color: var(--ink-soft); white-space: nowrap; }
    .nav-links a:hover { color: var(--ink); }
    .nav-cta {
      font-family: var(--font-body);
      font-weight: 600;
      font-size: 0.9rem;
      background: var(--ink);
      color: var(--paper);
      padding: 10px 18px;
      border-radius: 999px;
      text-decoration: none;
      white-space: nowrap;
      flex: none;
    }
    .lang-switch {
      display: flex;
      align-items: center;
      gap: 8px;
      font-family: var(--font-mono, monospace);
      font-size: 0.78rem;
      font-weight: 500;
      letter-spacing: 0.02em;
      flex: none;
    }
    .lang-switch a,
    .lang-switch .lang-current {
      text-decoration: none;
      color: var(--ink-soft);
      padding: 4px 7px;
      border-radius: 6px;
    }
    .lang-switch a:hover { color: var(--ink); background: var(--paper-raised); }
    .lang-switch .lang-current {
      color: var(--ink);
      background: var(--paper-raised);
      box-shadow: inset 0 0 0 1px var(--line);
    }
    @media (max-width: 760px) {
      .nav-links { display: none; }
    }
    @media (max-width: 420px) {
      .nav-cta { font-size: 0.8rem; padding: 9px 14px; }
      .brand { font-size: 1.1rem; }
      .lang-switch { gap: 4px; }
    }

    /* ---------- Buttons ---------- */
    .btn {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-family: var(--font-body);
      font-weight: 600;
      font-size: 1rem;
      padding: 14px 26px;
      border-radius: 999px;
      text-decoration: none;
      border: 1px solid transparent;
      cursor: pointer;
    }
    .btn-primary { background: var(--ink); color: var(--paper); }
    .btn-ghost { background: transparent; color: var(--ink); border-color: var(--line-strong); }
    .btn-ghost:hover { border-color: var(--ink); }

    /* ---------- Hero ---------- */
    .hero {
      padding: clamp(48px, 8vw, 96px) 0 clamp(40px, 6vw, 72px);
    }
    .hero-grid {
      display: grid;
      grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
      gap: clamp(32px, 5vw, 64px);
      align-items: center;
    }
    .hero-tag {
      display: inline-block;
      padding: 6px 14px;
      border-radius: 999px;
      background: var(--paper-raised);
      border: 1px solid var(--line);
      margin-bottom: 20px;
    }
    .hero h1 {
      font-size: clamp(2.4rem, 5vw, 3.6rem);
      line-height: 1.05;
    }
    .hero h1 em {
      font-style: italic;
      color: var(--blue);
    }
    .hero p.lead {
      font-size: clamp(1.05rem, 1.6vw, 1.2rem);
      color: var(--ink-soft);
      max-width: 46ch;
      margin: 22px 0 32px;
    }
    .hero-ctas { display: flex; gap: 14px; flex-wrap: wrap; }

    @media (max-width: 860px) {
      .hero-grid { grid-template-columns: 1fr; }
    }

    /* ---------- Phone frame ---------- */
    .phone-wrap { display: flex; flex-direction: column; align-items: center; gap: 14px; min-width: 0; }
    .phone-frame {
      width: min(300px, 78vw);
      max-width: 100%;
      flex-shrink: 0;
      background: var(--ink);
      border-radius: 2.4rem;
      padding: 9px;
      box-shadow: var(--shadow);
      position: relative;
    }
    .phone-frame::before {
      content: "";
      position: absolute;
      top: 20px;
      left: 50%;
      transform: translateX(-50%);
      width: 46px;
      height: 5px;
      border-radius: 999px;
      background: color-mix(in srgb, var(--paper) 22%, transparent);
      z-index: 2;
    }
    .phone-frame img {
      border-radius: 1.8rem;
      width: 100%;
      height: auto;
      display: block;
    }
    .phone-caption {
      font-family: var(--font-mono);
      font-size: 0.78rem;
      color: var(--ink-soft);
      text-align: center;
      max-width: 30ch;
    }
    .phone-caption strong { color: var(--ink); font-weight: 500; }

    /* ---------- Timeline spine ---------- */
    .spine {
      position: relative;
      padding: clamp(20px, 4vw, 40px) 0;
    }
    .spine::before {
      content: "";
      position: absolute;
      left: 7px;
      top: 0;
      bottom: 0;
      width: 1px;
      background: var(--line-strong);
    }
    @media (max-width: 860px) {
      .spine::before { left: 5px; }
    }

    .entry {
      position: relative;
      padding: clamp(56px, 8vw, 96px) 0;
      padding-left: 44px;
      border-top: 1px solid var(--line);
    }
    .entry:first-child { border-top: none; }
    .entry::before {
      content: "";
      position: absolute;
      left: 0;
      top: clamp(60px, 8vw, 100px);
      width: 15px;
      height: 15px;
      border-radius: 50%;
      background: var(--paper);
      border: 2px solid var(--blue);
    }
    .entry .entry-grid {
      display: grid;
      grid-template-columns: minmax(0, 1fr) minmax(0, 0.85fr);
      gap: clamp(28px, 5vw, 56px);
      align-items: center;
    }
    .entry .entry-grid > .entry-copy { min-width: 0; }
    .entry.reverse .entry-grid > .entry-copy { order: 2; }
    .entry.reverse .entry-grid > .phone-wrap { order: 1; }

    .entry-copy h2 {
      font-size: clamp(1.5rem, 2.6vw, 2.05rem);
      margin: 10px 0 16px;
      line-height: 1.15;
    }
    .entry-copy p { color: var(--ink-soft); max-width: 52ch; font-size: 1.02rem; }

    .tag-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }
    .tag {
      font-family: var(--font-mono);
      font-size: 0.76rem;
      padding: 5px 11px;
      border-radius: 999px;
      border: 1px solid var(--line-strong);
      color: var(--ink-soft);
    }

    @media (max-width: 860px) {
      .entry .entry-grid { grid-template-columns: 1fr; }
      .entry.reverse .entry-grid > .entry-copy { order: 1; }
      .entry.reverse .entry-grid > .phone-wrap { order: 2; }
      .entry { padding-left: 30px; }
    }

    /* ---------- Family section ---------- */
    .family {
      padding: clamp(56px, 8vw, 96px) 0;
      border-top: 1px solid var(--line);
    }
    .family-head { max-width: 62ch; }
    .family-head h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); margin: 10px 0 16px; }
    .family-head p { color: var(--ink-soft); font-size: 1.05rem; }

    .family-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
      margin-top: 40px;
    }
    .family-card {
      background: var(--paper-raised);
      border: 1px solid var(--line);
      border-radius: var(--radius-md);
      padding: 24px;
    }
    .family-card .icon {
      width: 40px; height: 40px;
      border-radius: 10px;
      display: flex; align-items: center; justify-content: center;
      margin-bottom: 16px;
    }
    .family-card h3 { font-size: 1.05rem; font-family: var(--font-body); font-weight: 700; margin-bottom: 6px; }
    .family-card p { color: var(--ink-soft); font-size: 0.94rem; margin: 0; }
    .family-card .stat-row {
      display: flex; gap: 8px; margin-top: 14px; flex-wrap: wrap;
    }
    .stat-chip {
      font-family: var(--font-mono);
      font-size: 0.72rem;
      padding: 4px 9px;
      border-radius: 999px;
    }
    .stat-chip.blue { background: var(--blue-soft); color: var(--blue); }
    .stat-chip.gold { background: var(--gold-soft); color: var(--gold); }
    .stat-chip.alert { background: var(--alert-soft); color: var(--alert); }

    @media (max-width: 760px) {
      .family-grid { grid-template-columns: 1fr; }
    }

    /* ---------- Trust strip ---------- */
    .trust {
      padding: clamp(48px, 7vw, 80px) 0;
      background: var(--paper-raised);
      border-top: 1px solid var(--line);
      border-bottom: 1px solid var(--line);
    }
    .trust-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 28px;
    }
    .trust-item { display: flex; gap: 14px; align-items: flex-start; }
    .trust-item .icon {
      flex: none; width: 34px; height: 34px;
      border-radius: 9px;
      display: flex; align-items: center; justify-content: center;
      background: var(--green-soft); color: var(--green);
    }
    .trust-item h3 { font-family: var(--font-body); font-size: 0.98rem; font-weight: 700; margin: 0 0 4px; }
    .trust-item p { margin: 0; color: var(--ink-soft); font-size: 0.9rem; }

    @media (max-width: 900px) {
      .trust-grid { grid-template-columns: repeat(2, 1fr); }
    }
    @media (max-width: 560px) {
      .trust-grid { grid-template-columns: 1fr; }
    }

    /* ---------- Final CTA ---------- */
    .final-cta {
      padding: clamp(64px, 10vw, 120px) 0;
      text-align: center;
    }
    .final-cta h2 {
      font-size: clamp(1.8rem, 4vw, 2.8rem);
      max-width: 22ch;
      margin: 0 auto 18px;
    }
    .final-cta p { color: var(--ink-soft); max-width: 46ch; margin: 0 auto 30px; font-size: 1.05rem; }
    .final-cta .hero-ctas { justify-content: center; }
    .final-note { margin-top: 16px; font-size: 0.85rem; color: var(--ink-soft); }

    /* ---------- Footer ---------- */
    footer {
      border-top: 1px solid var(--line);
      padding: 28px 0 40px;
    }
    footer .wrap {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 12px;
      font-size: 0.85rem;
      color: var(--ink-soft);
    }
    footer a { text-decoration: none; color: var(--ink-soft); }
    footer a:hover { color: var(--ink); }

    @media (prefers-reduced-motion: reduce) {
      html { scroll-behavior: auto; }
    }