:root {
      --ink: #17140f;
      --cream: #f4ebda;
      --ivory: #eaddc6;
      --paper: #fff9f2;
      --terra: #9b451c;
      --brick: #ce4520;
      --lavender: #c9c2f2;
      --lavender-dark: #4a4090;
      --green: #3d5b52;
      --night: #23383a;
      --muted: #5f584f;
      --gold: #d9b98a;
      --success: #35634f;
      --line: rgba(23, 20, 15, .13);
      --line-light: rgba(255, 255, 255, .48);
      --shadow: 0 24px 60px -30px rgba(23, 20, 15, .28);
      --radius-control: 12px;
      --radius-card: 20px;
      --radius-large: 28px;
      --max: 1220px;
      --reading: 720px;
      --ease: cubic-bezier(.22, .9, .28, 1);
    }

    *, *::before, *::after { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      color: var(--ink);
      background:
        radial-gradient(circle at 88% 5%, rgba(201, 194, 242, .24), transparent 27rem),
        linear-gradient(180deg, #f6eddd 0%, var(--cream) 48%, #eee0c8 100%);
      font-family: "Instrument Sans", system-ui, sans-serif;
      font-size: 17px;
      line-height: 1.65;
      -webkit-font-smoothing: antialiased;
    }

    body.nav-open, body.search-open { overflow: hidden; }
    a { color: inherit; }
    button, input { font: inherit; }
    img { display: block; max-width: 100%; }
    [hidden] { display: none !important; }

    .skip-link {
      position: fixed;
      z-index: 1000;
      left: 18px;
      top: -80px;
      padding: 11px 16px;
      color: var(--paper);
      background: var(--lavender-dark);
      border-radius: 10px;
      font-weight: 700;
      transition: top .2s ease;
    }
    .skip-link:focus { top: 18px; }

    :focus-visible {
      outline: 3px solid var(--lavender-dark);
      outline-offset: 4px;
    }

    .wrap {
      width: min(calc(100% - 48px), var(--max));
      margin-inline: auto;
    }

    .site-header {
      position: fixed;
      inset: 14px 0 auto;
      z-index: 100;
      pointer-events: none;
    }

    .nav {
      min-height: 68px;
      display: flex;
      align-items: center;
      gap: 20px;
      padding: 9px 11px 9px 15px;
      border: 1px solid rgba(255, 255, 255, .62);
      border-radius: 999px;
      background: rgba(244, 235, 218, .82);
      box-shadow: var(--shadow), inset 0 1px 0 rgba(255, 255, 255, .75);
      backdrop-filter: blur(18px) saturate(1.3);
      pointer-events: auto;
    }

    .brand {
      flex: 0 0 auto;
      display: inline-flex;
      align-items: center;
      gap: 10px;
      text-decoration: none;
      font-weight: 700;
      letter-spacing: -.02em;
      line-height: 1.15;
    }

    /* Logo actuel du site : on réutilise strictement l’actif existant. */
    .brand-mark {
      position: relative;
      width: 38px;
      height: 38px;
      flex: 0 0 auto;
      display: grid;
      place-items: center;
      overflow: hidden;
      border: 1px solid rgba(168, 78, 31, .24);
      border-radius: 12px;
      background: #a84e1f;
      box-shadow: inset 0 1px 0 rgba(255, 255, 255, .22), 0 14px 28px -18px rgba(168, 78, 31, .55);
    }

    .brand-mark::before {
      content: "";
      width: 100%;
      height: 100%;
      display: block;
      background: url("/assets/images/favicon-192.png") center / cover no-repeat;
    }

    .brand-mark::after { display: none; }

    .nav-links {
      margin-left: auto;
      display: flex;
      align-items: center;
      gap: 2px;
    }

    .nav-links a {
      padding: 9px 10px;
      border-radius: 999px;
      text-decoration: none;
      font-size: .84rem;
      font-weight: 600;
      white-space: nowrap;
      transition: background .2s ease, color .2s ease;
    }
    .nav-links a:hover { background: rgba(255, 255, 255, .5); }

    .nav-tools {
      display: flex;
      align-items: center;
      gap: 7px;
    }

    .icon-button, .menu-button {
      min-width: 44px;
      height: 44px;
      border: 1px solid var(--line);
      border-radius: 999px;
      color: var(--ink);
      background: rgba(255, 255, 255, .28);
      cursor: pointer;
    }

    .icon-button { font-size: 1.1rem; }

    .languages {
      display: flex;
      align-items: center;
      padding: 3px;
      border: 1px solid var(--line);
      border-radius: 999px;
    }

    .languages a {
      min-width: 36px;
      padding: 6px 8px;
      border-radius: 999px;
      text-align: center;
      text-decoration: none;
      font-size: .72rem;
      font-weight: 700;
    }
    .languages .active { color: var(--paper); background: var(--ink); }

    .nav-cta, .button {
      display: inline-flex;
      min-height: 46px;
      align-items: center;
      justify-content: center;
      gap: 9px;
      padding: 11px 19px;
      border: 1px solid transparent;
      border-radius: 999px;
      text-decoration: none;
      font-size: .88rem;
      font-weight: 700;
      cursor: pointer;
      transition: transform .22s var(--ease), box-shadow .22s var(--ease), background .22s ease;
    }

    .nav-cta, .button-primary {
      color: var(--paper);
      background: var(--terra);
      box-shadow: 0 16px 34px -18px rgba(135, 58, 22, .8);
    }

    .button-secondary {
      color: var(--paper);
      border-color: rgba(255, 255, 255, .44);
      background: rgba(23, 20, 15, .3);
      backdrop-filter: blur(10px);
    }

    .button-light {
      color: var(--ink);
      border-color: var(--line);
      background: rgba(255, 249, 242, .74);
    }

    .button:hover, .nav-cta:hover { transform: translateY(-2px); }

    .menu-button {
      display: none;
      padding: 0 13px;
      font-size: .82rem;
      font-weight: 700;
    }

    .hero {
      padding: 108px 0 28px;
    }

    .hero-frame {
      position: relative;
      min-height: 650px;
      display: flex;
      align-items: flex-end;
      overflow: hidden;
      border-radius: var(--radius-large);
      background: var(--night);
      box-shadow: 0 36px 80px -42px rgba(23, 20, 15, .58);
      isolation: isolate;
    }

    .hero-frame > img {
      position: absolute;
      inset: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      object-position: center 47%;
      z-index: -3;
      transform: scale(1.015);
    }

    .hero-frame::before {
      content: "";
      position: absolute;
      inset: 0;
      z-index: -2;
      background:
        linear-gradient(90deg, rgba(23, 20, 15, .76) 0%, rgba(23, 20, 15, .48) 54%, rgba(23, 20, 15, .15) 100%),
        linear-gradient(0deg, rgba(23, 20, 15, .68) 0%, transparent 60%);
    }

    .hero-frame::after {
      content: "";
      position: absolute;
      inset: 0;
      z-index: -1;
      background: radial-gradient(circle at 82% 24%, rgba(201, 194, 242, .18), transparent 26rem);
      mix-blend-mode: screen;
    }

    .hero-credit {
      position: absolute;
      top: 20px;
      right: 24px;
      max-width: 48%;
      color: rgba(255, 249, 242, .82);
      font-family: "Fraunces", serif;
      font-size: .76rem;
      font-style: italic;
      text-align: right;
    }
    .hero > .wrap > .hero-credit { display: none; }

    .hero-content {
      width: min(820px, 100%);
      padding: clamp(28px, 5vw, 64px);
      color: var(--paper);
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 9px;
      margin: 0 0 18px;
      color: var(--gold);
      font-size: .74rem;
      font-weight: 700;
      letter-spacing: .14em;
      text-transform: uppercase;
    }
    .eyebrow::before { content: ""; width: 28px; height: 1px; background: currentColor; }

    h1, h2, h3, .display {
      margin: 0;
      font-family: "Fraunces", Georgia, serif;
      font-weight: 500;
      letter-spacing: -.045em;
      text-wrap: balance;
    }

    h1 {
      max-width: 13ch;
      font-size: clamp(3.4rem, 6vw, 5.25rem);
      line-height: .98;
    }

    h1 em, h2 em {
      color: var(--lavender);
      font-weight: 500;
    }

    .hero-lead {
      max-width: 700px;
      margin: 24px 0 0;
      font-size: clamp(1.02rem, 1.4vw, 1.18rem);
      line-height: 1.55;
      font-weight: 500;
      color: rgba(255, 249, 242, .92);
    }

    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }

    .proof-strip {
      display: grid;
      grid-template-columns: 1.1fr 1fr 1fr;
      margin-top: 18px;
      overflow: hidden;
      border: 1px solid rgba(255, 255, 255, .56);
      border-radius: var(--radius-card);
      background: rgba(255, 249, 242, .58);
      box-shadow: var(--shadow);
      backdrop-filter: blur(16px);
    }

    .proof-item {
      min-height: 104px;
      display: grid;
      grid-template-columns: auto 1fr;
      align-items: center;
      gap: 14px;
      padding: 20px 24px;
    }
    .proof-item + .proof-item { border-left: 1px solid var(--line); }
    .proof-number {
      width: 42px;
      height: 42px;
      display: grid;
      place-items: center;
      border-radius: 50%;
      color: var(--paper);
      background: var(--night);
      font-family: "Fraunces", serif;
      font-size: 1.05rem;
    }
    .proof-item strong { display: block; font-size: .92rem; line-height: 1.25; }
    .proof-item span:last-child { display: block; margin-top: 4px; color: var(--muted); font-size: .78rem; line-height: 1.4; }

    .section { padding: 92px 0; }
    .section-tight { padding: 62px 0; }
    .section-head { max-width: 780px; margin-bottom: 42px; }
    .section-head h2 { font-size: clamp(2.45rem, 4.2vw, 4rem); line-height: 1.05; }
    .section-head p { max-width: var(--reading); margin: 18px 0 0; color: var(--muted); }

    .why-layout {
      display: grid;
      grid-template-columns: .85fr 1.15fr;
      gap: clamp(42px, 7vw, 96px);
      align-items: start;
    }

    .why-copy { position: sticky; top: 118px; }
    .why-copy h2 { font-size: clamp(2.6rem, 4.5vw, 4.35rem); line-height: 1.02; }
    .why-copy p { color: var(--muted); }

    .system-map { position: relative; display: grid; gap: 14px; }
    .system-map::before {
      content: "";
      position: absolute;
      left: 31px;
      top: 32px;
      bottom: 32px;
      width: 1px;
      background: linear-gradient(var(--terra), var(--lavender-dark), var(--green));
    }

    .system-row {
      position: relative;
      display: grid;
      grid-template-columns: 64px 1fr;
      gap: 18px;
      padding: 25px 26px 25px 0;
      border-top: 1px solid var(--line);
    }
    .system-row:last-child { border-bottom: 1px solid var(--line); }
    .system-node {
      position: relative;
      z-index: 1;
      width: 64px;
      height: 64px;
      display: grid;
      place-items: center;
      border-radius: 50%;
      border: 8px solid var(--cream);
      color: var(--paper);
      background: var(--terra);
      font-family: "Fraunces", serif;
    }
    .system-row:nth-child(2) .system-node { background: var(--lavender-dark); }
    .system-row:nth-child(3) .system-node { background: var(--green); }
    .system-row h3 { font-size: 1.5rem; letter-spacing: -.03em; }
    .system-row p { max-width: 54ch; margin: 7px 0 0; color: var(--muted); font-size: .94rem; }

    .needs-panel {
      padding: clamp(28px, 5vw, 56px);
      border: 1px solid rgba(255, 255, 255, .58);
      border-radius: var(--radius-large);
      background:
        linear-gradient(135deg, rgba(255, 249, 242, .76), rgba(234, 221, 198, .7)),
        radial-gradient(circle at 90% 5%, rgba(201, 194, 242, .42), transparent 24rem);
      box-shadow: var(--shadow);
    }

    .role-tabs {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: 26px;
    }

    .role-tab {
      padding: 10px 15px;
      border: 1px solid var(--line);
      border-radius: 999px;
      color: var(--ink);
      background: rgba(255, 249, 242, .72);
      font-size: .8rem;
      font-weight: 700;
      cursor: pointer;
      transition: color .2s ease, background .2s ease, transform .2s ease;
    }
    .role-tab:hover { transform: translateY(-1px); }
    .role-tab[aria-selected="true"] { color: var(--paper); background: var(--night); }

    .role-result {
      margin-top: 30px;
      padding-top: 28px;
      border-top: 1px solid var(--line);
    }
    .role-result-head {
      display: flex;
      align-items: end;
      justify-content: space-between;
      gap: 24px;
      margin-bottom: 22px;
    }
    .role-result h3 { font-size: clamp(1.75rem, 3vw, 2.45rem); }
    .role-result-intro { max-width: 560px; margin: 7px 0 0; color: var(--muted); }
    .role-label { color: var(--terra); font-size: .72rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }

    .action-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
    .action-card {
      min-height: 210px;
      display: flex;
      flex-direction: column;
      padding: 22px;
      border: 1px solid var(--line);
      border-radius: var(--radius-card);
      color: inherit;
      background: rgba(255, 249, 242, .62);
      text-decoration: none;
      transition: transform .25s var(--ease), border-color .2s ease, background .2s ease;
    }
    .action-card:hover { transform: translateY(-4px); border-color: rgba(155, 69, 28, .42); background: var(--paper); }
    .action-index { color: var(--terra); font-size: .72rem; font-weight: 700; }
    .action-card strong { margin-top: 25px; font-family: "Fraunces", serif; font-size: 1.35rem; line-height: 1.15; }
    .action-card p { margin: 9px 0 20px; color: var(--muted); font-size: .86rem; line-height: 1.55; }
    .action-arrow { margin-top: auto; color: var(--terra); font-weight: 700; }

    .tools-section {
      color: var(--paper);
      background: var(--night);
    }
    .tools-section .section-head p { color: rgba(255, 249, 242, .68); }
    .tools-grid { display: grid; grid-template-columns: 1.12fr .88fr .88fr; gap: 16px; }
    .tool-card {
      min-height: 370px;
      display: flex;
      flex-direction: column;
      padding: 28px;
      border: 1px solid rgba(255, 255, 255, .16);
      border-radius: var(--radius-card);
      background: rgba(255, 255, 255, .055);
      text-decoration: none;
      transition: transform .25s var(--ease), background .25s ease;
    }
    .tool-card:first-child {
      color: var(--ink);
      border-color: transparent;
      background: linear-gradient(145deg, var(--lavender), #e5daf2 68%, #f3ddd0);
    }
    .tool-card:hover { transform: translateY(-5px); background-color: rgba(255, 255, 255, .09); }
    .tool-meta { display: flex; justify-content: space-between; gap: 12px; font-size: .72rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; opacity: .72; }
    .tool-card h3 { margin-top: auto; font-size: clamp(1.8rem, 2.6vw, 2.45rem); line-height: 1.05; letter-spacing: -.04em; }
    .tool-card p { margin: 14px 0 22px; font-size: .9rem; line-height: 1.6; opacity: .76; }
    .tool-link { display: inline-flex; align-items: center; gap: 8px; font-size: .84rem; font-weight: 700; }

    .analysis-head-row {
      display: flex;
      justify-content: space-between;
      align-items: end;
      gap: 24px;
      margin-bottom: 34px;
    }
    .analysis-head-row .section-head { margin: 0; }
    .text-link { color: var(--terra); font-size: .86rem; font-weight: 700; text-underline-offset: 4px; }
    .analysis-list { border-top: 1px solid var(--line); }
    .analysis-card {
      display: grid;
      grid-template-columns: 150px 1fr 110px;
      gap: 28px;
      align-items: center;
      padding: 30px 2px;
      border-bottom: 1px solid var(--line);
      text-decoration: none;
    }
    .analysis-card:hover h3 { color: var(--terra); }
    .analysis-type { display: grid; gap: 9px; }
    .status {
      width: fit-content;
      padding: 5px 9px;
      border-radius: 999px;
      color: var(--lavender-dark);
      background: rgba(201, 194, 242, .42);
      font-size: .68rem;
      font-weight: 700;
    }
    .analysis-date { color: var(--muted); font-size: .75rem; }
    .analysis-card h3 { font-size: clamp(1.45rem, 2.1vw, 2rem); transition: color .2s ease; }
    .analysis-card p { max-width: 68ch; margin: 8px 0 0; color: var(--muted); font-size: .88rem; }
    .analysis-time { text-align: right; color: var(--muted); font-size: .78rem; }

    .case-panel {
      position: relative;
      display: grid;
      grid-template-columns: 1.05fr .95fr;
      overflow: hidden;
      border-radius: var(--radius-large);
      color: var(--paper);
      background: var(--green);
      box-shadow: var(--shadow);
    }
    .case-copy { padding: clamp(34px, 5vw, 62px); }
    .case-copy h2 { max-width: 15ch; font-size: clamp(2.4rem, 4.4vw, 4rem); line-height: 1.04; }
    .case-copy > p { max-width: 60ch; color: rgba(255, 249, 242, .78); }
    .case-metrics {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1px;
      align-self: stretch;
      background: rgba(255, 255, 255, .13);
    }
    .metric {
      min-height: 50%;
      display: flex;
      flex-direction: column;
      justify-content: flex-end;
      padding: 28px 22px;
      background: rgba(35, 56, 58, .54);
    }
    .metric:first-child { grid-column: 1 / -1; }
    .metric strong { font-family: "Fraunces", serif; font-size: clamp(2rem, 4vw, 4.2rem); line-height: 1; }
    .metric span { margin-top: 9px; color: rgba(255, 249, 242, .68); font-size: .76rem; line-height: 1.4; }

    .about-layout {
      display: grid;
      grid-template-columns: 190px 1fr .9fr;
      gap: 38px;
      align-items: center;
      padding-block: 8px;
    }
    .portrait {
      aspect-ratio: 1;
      overflow: hidden;
      border-radius: 50%;
      border: 9px solid rgba(255, 249, 242, .62);
      box-shadow: var(--shadow);
      background: var(--ivory);
    }
    .portrait img { width: 100%; height: 100%; object-fit: cover; object-position: center 20%; }
    .about-copy h2 { font-size: clamp(2.4rem, 4vw, 3.8rem); line-height: 1.04; }
    .about-copy p { margin: 16px 0 0; color: var(--muted); }
    .proof-list { display: grid; gap: 14px; }
    .proof-line {
      display: grid;
      grid-template-columns: 38px 1fr;
      gap: 13px;
      align-items: start;
      padding: 14px 0;
      border-bottom: 1px solid var(--line);
    }
    .proof-line:first-child { border-top: 1px solid var(--line); }
    .proof-icon { color: var(--terra); font-family: "Fraunces", serif; font-size: 1.25rem; }
    .proof-line strong { display: block; font-size: .9rem; }
    .proof-line span:last-child { display: block; margin-top: 3px; color: var(--muted); font-size: .76rem; }

    .newsletter-panel {
      position: relative;
      overflow: hidden;
      padding: clamp(34px, 6vw, 72px);
      border: 1px solid rgba(255, 255, 255, .6);
      border-radius: var(--radius-large);
      background:
        radial-gradient(circle at 8% 10%, rgba(201, 194, 242, .84), transparent 24rem),
        radial-gradient(circle at 92% 85%, rgba(206, 69, 32, .27), transparent 28rem),
        rgba(255, 249, 242, .64);
      box-shadow: var(--shadow);
      text-align: center;
    }
    .newsletter-panel h2 { max-width: 17ch; margin-inline: auto; font-size: clamp(2.5rem, 4.8vw, 4.3rem); line-height: 1.02; }
    .newsletter-panel p { max-width: 660px; margin: 18px auto 0; color: var(--muted); }
    .newsletter-actions { display: flex; justify-content: center; flex-wrap: wrap; gap: 12px; margin-top: 26px; }
    .newsletter-note { margin-top: 15px; color: var(--muted); font-size: .72rem; }

    .author-byline { padding: 40px 0 0; }
    .author-newsletter-row {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
      padding: 22px 0;
      border-top: 1px solid var(--line);
      border-bottom: 1px solid var(--line);
    }
    .author-newsletter-row p { margin: 0; color: var(--muted); font-size: .86rem; }
    .author-newsletter-row a { text-decoration: none; }
    .substack-byline {
      display: inline-flex;
      align-items: center;
      gap: 9px;
      flex: 0 0 auto;
      padding: 9px 14px;
      border: 1px solid var(--line);
      border-radius: 999px;
      background: rgba(255, 249, 242, .54);
      color: var(--terra);
      font-size: .78rem;
      font-weight: 700;
    }
    .substack-byline:hover { background: var(--paper); }

    footer {
      margin-top: 96px;
      padding: 58px 0 28px;
      border-top: 1px solid var(--line);
      background: rgba(234, 221, 198, .52);
    }
    .footer-grid { display: grid; grid-template-columns: 1.4fr repeat(3, 1fr); gap: 42px; }
    .footer-brand p { max-width: 34ch; margin: 16px 0 0; color: var(--muted); font-size: .84rem; }
    .footer-col h3 { font-family: "Instrument Sans", sans-serif; font-size: .72rem; letter-spacing: .14em; text-transform: uppercase; }
    .footer-col ul { margin: 15px 0 0; padding: 0; list-style: none; }
    .footer-col li + li { margin-top: 8px; }
    .footer-col a { color: var(--muted); text-decoration: none; font-size: .84rem; }
    .footer-col a:hover { color: var(--terra); }
    .footer-bottom {
      display: flex;
      justify-content: space-between;
      gap: 20px;
      margin-top: 44px;
      padding-top: 22px;
      border-top: 1px solid var(--line);
      color: var(--muted);
      font-size: .72rem;
    }

    .search-modal {
      position: fixed;
      inset: 0;
      z-index: 300;
      display: grid;
      place-items: start center;
      padding: 110px 20px 30px;
      background: rgba(23, 20, 15, .48);
      backdrop-filter: blur(12px);
    }
    .search-box {
      width: min(680px, 100%);
      padding: 22px;
      border: 1px solid rgba(255, 255, 255, .56);
      border-radius: var(--radius-card);
      background: var(--paper);
      box-shadow: 0 35px 90px -34px rgba(0, 0, 0, .72);
    }
    .search-top { display: flex; gap: 10px; }
    .search-input {
      flex: 1;
      min-width: 0;
      min-height: 48px;
      padding: 11px 14px;
      border: 1px solid var(--line);
      border-radius: var(--radius-control);
      color: var(--ink);
      background: var(--cream);
    }
    .close-search { width: 48px; height: 48px; border: 0; border-radius: 50%; color: var(--paper); background: var(--night); cursor: pointer; }
    .search-results { display: grid; gap: 7px; margin-top: 15px; }
    .search-result { padding: 12px 14px; border-radius: 12px; background: var(--cream); text-decoration: none; font-size: .86rem; }
    .search-result:hover { background: var(--lavender); }
    .sr-only { position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }

    .reveal { opacity: 1; transform: none; }
    .js .reveal { opacity: 0; transform: translateY(18px); transition: opacity .65s var(--ease), transform .65s var(--ease); }
    .js .reveal.in { opacity: 1; transform: none; }

    @media (max-width: 1120px) {
      .nav-links { display: none; }
      .nav-cta { display: none; }
      .menu-button { display: inline-flex; align-items: center; justify-content: center; }
      .nav { position: relative; }
      .nav-links.mobile-open {
        position: absolute;
        top: 76px;
        left: 0;
        right: 0;
        display: grid;
        gap: 2px;
        padding: 12px;
        border: 1px solid rgba(255, 255, 255, .66);
        border-radius: 22px;
        background: rgba(244, 235, 218, .98);
        box-shadow: var(--shadow);
      }
      .nav-links.mobile-open a { padding: 12px 14px; font-size: .95rem; }
      .hero-frame { min-height: 610px; }
      .tools-grid { grid-template-columns: 1fr 1fr; }
      .tool-card:first-child { grid-column: 1 / -1; }
      .about-layout { grid-template-columns: 160px 1fr; }
      .proof-list { grid-column: 1 / -1; grid-template-columns: repeat(3, 1fr); }
      .proof-line { border-top: 1px solid var(--line); }
    }

    @media (max-width: 820px) {
      .wrap { width: min(calc(100% - 32px), var(--max)); }
      .brand { font-size: .9rem; }
      .hero { padding-top: 96px; }
      .hero-frame { min-height: 660px; }
      .hero-content { padding: 30px 22px; }
      h1 { font-size: clamp(3rem, 10vw, 4.5rem); }
      .proof-strip { grid-template-columns: 1fr; }
      .proof-item + .proof-item { border-left: 0; border-top: 1px solid var(--line); }
      .why-layout { grid-template-columns: 1fr; }
      .why-copy { position: static; }
      .action-grid { grid-template-columns: 1fr; }
      .action-card { min-height: 175px; }
      .analysis-card { grid-template-columns: 120px 1fr; }
      .analysis-time { grid-column: 2; text-align: left; }
      .case-panel { grid-template-columns: 1fr; }
      .case-metrics { grid-template-columns: repeat(3, 1fr); }
      .metric:first-child { grid-column: auto; }
      .metric { min-height: 190px; }
      .about-layout { grid-template-columns: 120px 1fr; }
      .proof-list { grid-template-columns: 1fr; }
      .footer-grid { grid-template-columns: 1fr 1fr; }
    }

    @media (max-width: 560px) {
      body { font-size: 16px; }
      .wrap { width: min(calc(100% - 28px), var(--max)); }
      .site-header { top: 10px; }
      .nav { min-height: 60px; padding: 8px 9px 8px 11px; gap: 8px; }
      .brand-mark { width: 34px; height: 34px; border-radius: 11px; }
      .brand-mark::before { width: 21px; height: 21px; }
      .brand { max-width: 155px; font-size: .78rem; }
      .languages { display: flex; }
      .languages a { min-width: 30px; padding-inline: 6px; }
      .icon-button, .menu-button { min-width: 42px; width: 42px; height: 42px; padding: 0; font-size: 0; }
      .icon-button::before { content: "⌕"; font-size: 1rem; }
      .menu-button::before { content: "☰"; font-size: 1rem; }
      .hero { padding-top: 82px; }
      .hero-frame { min-height: 610px; border-radius: 24px; }
      .hero-credit { position: static; max-width: none; padding: 12px 3px 0; color: var(--muted); text-align: left; }
      .hero > .wrap > .hero-credit { display: block; }
      .hero-frame .hero-credit { display: none; }
      h1 { max-width: 11ch; font-size: clamp(2.72rem, 13vw, 3.9rem); }
      .hero-actions .button { width: 100%; }
      .proof-item { min-height: 90px; padding: 16px 18px; }
      .section { padding: 68px 0; }
      .section-tight { padding: 48px 0; }
      .section-head { margin-bottom: 30px; }
      .section-head h2, .why-copy h2 { font-size: clamp(2.25rem, 11vw, 3.2rem); }
      .system-row { grid-template-columns: 54px 1fr; gap: 14px; padding-right: 0; }
      .system-node { width: 54px; height: 54px; }
      .system-map::before { left: 26px; }
      .needs-panel { padding: 26px 18px; border-radius: 24px; }
      .role-tabs { flex-wrap: nowrap; overflow-x: auto; padding-bottom: 8px; }
      .role-tab { flex: 0 0 auto; }
      .role-result-head { display: block; }
      .tools-grid { grid-template-columns: 1fr; }
      .tool-card, .tool-card:first-child { grid-column: auto; min-height: 320px; padding: 24px; }
      .analysis-head-row { display: block; }
      .analysis-head-row .text-link { display: inline-block; margin-top: 16px; }
      .analysis-card { grid-template-columns: 1fr; gap: 12px; padding-block: 25px; }
      .analysis-time { grid-column: auto; }
      .case-copy { padding: 32px 22px; }
      .case-metrics { grid-template-columns: 1fr; }
      .metric { min-height: 140px; }
      .about-layout { grid-template-columns: 88px 1fr; gap: 20px; }
      .about-copy h2 { font-size: 2rem; }
      .about-copy p { grid-column: 1 / -1; }
      .proof-list { grid-column: 1 / -1; }
      .newsletter-panel { padding: 38px 20px; border-radius: 24px; }
      .author-newsletter-row { align-items: flex-start; flex-direction: column; }
      .footer-grid { grid-template-columns: 1fr; gap: 28px; }
      .footer-bottom { flex-direction: column; }
    }

    @media (max-width: 390px) {
      .brand-mark { width: 32px; height: 32px; }
      .brand-mark::before { width: 19px; height: 19px; }
    }

    @media (prefers-reduced-motion: reduce) {
      html { scroll-behavior: auto; }
      *, *::before, *::after { animation: none !important; transition: none !important; }
      .reveal, .js .reveal { opacity: 1; transform: none; }
    }