:root {
      --bg: #f4f6f8;
      --bg-2: #ffffff;
      --bg-3: #eef2f6;
      --ink: #0f1419;
      --ink-soft: #243040;
      --muted: #5b6b7c;
      --rule: #d5dde7;
      --accent: #0b7f6b;
      --accent-2: #1d4ed8;
      --danger-soft: #b45309;
      --shadow: rgba(15, 20, 25, 0.08);
      --measure: 38rem;
      --shell: min(1080px, calc(100% - 2.5rem));
      --mono: "IBM Plex Mono", ui-monospace, monospace;
      --sans: "IBM Plex Sans", system-ui, sans-serif;
      --display: Fraunces, Georgia, serif;
    }

    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      background:
        radial-gradient(1000px 520px at 85% -5%, rgba(11, 127, 107, 0.07), transparent 55%),
        radial-gradient(800px 480px at 0% 15%, rgba(29, 78, 216, 0.05), transparent 50%),
        var(--bg);
      color: var(--ink);
      font-family: var(--sans);
      font-size: 1.0625rem;
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
    }

    /* cool engineered grid — light, not beige paper */
    body::before {
      content: "";
      position: fixed;
      inset: 0;
      pointer-events: none;
      z-index: 0;
      opacity: 0.45;
      background-image:
        linear-gradient(var(--rule) 1px, transparent 1px),
        linear-gradient(90deg, var(--rule) 1px, transparent 1px);
      background-size: 48px 48px;
      mask-image: radial-gradient(ellipse at center, black 15%, transparent 72%);
    }

    a { color: inherit; }
    .shell {
      width: var(--shell);
      margin: 0 auto;
      position: relative;
      z-index: 1;
    }

    header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 1.05rem 0;
      border-bottom: 1px solid var(--rule);
      position: sticky;
      top: 0;
      z-index: 20;
      background: color-mix(in srgb, var(--bg) 94%, transparent);
      backdrop-filter: blur(12px);
    }
    .brand {
      display: flex;
      align-items: baseline;
      gap: 0.5rem;
      text-decoration: none;
      line-height: 1;
    }
    .brand-name {
      font-family: var(--sans);
      font-weight: 700;
      font-size: 1rem;
      letter-spacing: -0.02em;
    }
    .brand-tag {
      font-family: var(--sans);
      font-size: 1rem;
      font-weight: 600;
      font-style: normal;
      color: var(--accent);
      letter-spacing: -0.025em;
    }
    nav {
      display: flex;
      gap: 1.25rem;
      font-family: var(--mono);
      font-size: 0.78rem;
      font-weight: 500;
      letter-spacing: 0.04em;
      text-transform: uppercase;
    }
    nav a {
      text-decoration: none;
      color: var(--muted);
      transition: color 0.15s ease;
    }
    nav a:hover { color: var(--ink); }

    .hero {
      display: grid;
      grid-template-columns: minmax(0, 1.25fr) minmax(220px, 0.75fr);
      gap: 2.25rem 2.75rem;
      padding: 3.75rem 0 3.25rem;
      border-bottom: 1px solid var(--rule);
      align-items: stretch;
    }
    .hero-copy {
      display: flex;
      flex-direction: column;
      justify-content: flex-end;
    }
    .nameplate { margin: 0 0 1.15rem; }
    .nameplate-name {
      margin: 0;
      font-family: var(--sans);
      font-size: clamp(2.8rem, 7vw, 4.6rem);
      font-weight: 700;
      line-height: 0.95;
      letter-spacing: -0.045em;
    }
    .nameplate-rhyme {
      margin: 0.15rem 0 0;
      font-family: var(--sans);
      font-size: clamp(2.35rem, 5.8vw, 3.75rem);
      font-weight: 650;
      font-style: normal;
      line-height: 1.02;
      letter-spacing: -0.04em;
      color: var(--accent);
    }
    .kicker {
      font-family: var(--mono);
      font-size: 0.72rem;
      letter-spacing: 0.12em;
      text-transform: uppercase;
      color: var(--accent-2);
      font-weight: 500;
      margin: 0 0 0.75rem;
    }
    h1 {
      font-family: var(--sans);
      font-size: clamp(1.55rem, 3vw, 2rem);
      font-weight: 600;
      line-height: 1.2;
      letter-spacing: -0.03em;
      margin: 0 0 1rem;
      max-width: 20ch;
      color: var(--ink-soft);
    }
    .lede {
      font-size: clamp(1.05rem, 1.8vw, 1.18rem);
      line-height: 1.55;
      max-width: var(--measure);
      margin: 0 0 1.75rem;
      color: var(--muted);
    }
    .actions {
      display: flex;
      flex-wrap: wrap;
      gap: 0.6rem;
      align-items: center;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      text-decoration: none;
      padding: 0.72rem 1.15rem;
      border-radius: 0.35rem;
      font-weight: 600;
      font-size: 0.95rem;
      transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
    }
    .btn-primary {
      background: var(--ink);
      color: #fff;
      box-shadow: 0 1px 2px var(--shadow);
    }
    .btn-primary:hover { background: var(--ink-soft); }
    .btn-ghost {
      border: 1px solid var(--rule);
      background: var(--bg-2);
      color: var(--ink);
    }
    .btn-ghost:hover {
      border-color: var(--accent-2);
      color: var(--ink);
    }
    .btn-text {
      border: none;
      background: transparent;
      color: var(--muted);
      text-decoration: underline;
      text-decoration-color: var(--rule);
      text-underline-offset: 0.22em;
      padding-left: 0.4rem;
      padding-right: 0.4rem;
    }
    .btn-text:hover {
      color: var(--accent);
      text-decoration-color: var(--accent);
    }

    .hero-plate { display: flex; }
    .plate {
      width: 100%;
      min-height: 320px;
      background: linear-gradient(165deg, var(--bg-2), var(--bg-3));
      border: 1px solid var(--rule);
      border-radius: 0.5rem;
      position: relative;
      overflow: hidden;
      display: grid;
      grid-template-rows: auto 1fr auto;
      padding: 1rem 1.1rem 1.15rem;
      box-shadow: 0 14px 36px var(--shadow);
    }
    .plate.has-photo {
      padding: 0;
      grid-template-rows: 1fr auto;
    }
    .plate.has-photo::before {
      content: none;
    }
    .plate.has-photo .plate-top {
      position: absolute;
      top: 0.85rem;
      left: 0.95rem;
      right: 0.95rem;
      z-index: 2;
      color: #fff;
      text-shadow: 0 1px 2px rgba(0,0,0,0.45);
    }
    .plate.has-photo .plate-top span:last-child { color: #9ef0d8; }
    .plate-photo {
      display: block;
      width: 100%;
      height: 100%;
      min-height: 340px;
      object-fit: cover;
      object-position: center 18%;
    }
    .plate.has-photo .plate-caption {
      position: absolute;
      left: 0;
      right: 0;
      bottom: 0;
      z-index: 2;
      margin: 0;
      padding: 2.5rem 1.1rem 1rem;
      background: linear-gradient(180deg, transparent, rgba(15,20,25,0.78));
      color: #fff;
    }
    .plate.has-photo .plate-caption .rhyme { color: #9ef0d8; }
    .plate::before {
      content: "";
      position: absolute;
      inset: 0;
      background:
        linear-gradient(rgba(11,127,107,0.07) 1px, transparent 1px),
        linear-gradient(90deg, rgba(11,127,107,0.07) 1px, transparent 1px);
      background-size: 24px 24px;
      mask-image: linear-gradient(180deg, black, transparent 85%);
      pointer-events: none;
    }
    .plate-top {
      position: relative;
      display: flex;
      justify-content: space-between;
      font-family: var(--mono);
      font-size: 0.68rem;
      letter-spacing: 0.1em;
      text-transform: uppercase;
      font-weight: 500;
      color: var(--muted);
    }
    .plate-top span:last-child { color: var(--accent); }
    .plate-core {
      position: relative;
      display: grid;
      place-items: center;
    }
    .monogram {
      font-family: var(--sans);
      font-size: clamp(4.5rem, 10vw, 6.5rem);
      font-weight: 700;
      letter-spacing: -0.08em;
      line-height: 0.85;
      color: var(--ink);
      position: relative;
      z-index: 1;
    }
    .monogram span { color: var(--accent); }
    .plate-core::before {
      content: "";
      position: absolute;
      width: 68%;
      aspect-ratio: 1;
      border: 1px solid color-mix(in srgb, var(--accent) 35%, transparent);
      border-radius: 50%;
    }
    .plate-core::after {
      content: "";
      position: absolute;
      left: 14%;
      right: 14%;
      top: 50%;
      height: 1px;
      background: color-mix(in srgb, var(--accent-2) 45%, transparent);
    }
    .plate-caption {
      position: relative;
      font-family: var(--sans);
      font-style: normal;
      font-size: 0.98rem;
      font-weight: 500;
      color: var(--ink-soft);
      line-height: 1.3;
      letter-spacing: -0.01em;
    }
    .plate-caption em,
    .plate-caption .rhyme {
      font-style: normal;
      font-weight: 650;
      color: var(--accent);
    }

    /* proof as status board */
    .proof {
      padding: 1.5rem 0 1.6rem;
      border-bottom: 1px solid var(--rule);
    }
    .proof-kicker {
      font-family: var(--mono);
      font-size: 0.7rem;
      letter-spacing: 0.12em;
      text-transform: uppercase;
      font-weight: 500;
      color: var(--muted);
      margin: 0 0 0.9rem;
    }
    .proof-list {
      list-style: none;
      padding: 0;
      margin: 0;
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 0.75rem;
    }
    .proof-list li {
      background: var(--bg-2);
      border: 1px solid var(--rule);
      border-radius: 0.45rem;
      padding: 1rem 1.05rem;
      display: grid;
      gap: 0.4rem;
    }
    .proof-list strong {
      font-family: var(--mono);
      font-size: 0.78rem;
      font-weight: 600;
      letter-spacing: 0.02em;
      color: var(--accent);
    }
    .proof-list span {
      font-size: 0.95rem;
      color: var(--ink-soft);
      line-height: 1.4;
    }

    .chapter {
      display: grid;
      grid-template-columns: 4.5rem minmax(0, 1fr);
      gap: 0.75rem 1.5rem;
      padding: 3.15rem 0;
      border-bottom: 1px solid var(--rule);
    }
    .chapter-num {
      font-family: var(--mono);
      font-size: 1.15rem;
      font-weight: 500;
      color: var(--accent);
      line-height: 1;
      padding-top: 0.35rem;
    }
    .chapter-body { max-width: 44rem; }
    h2 {
      font-family: var(--sans);
      font-size: clamp(1.55rem, 3vw, 1.95rem);
      font-weight: 650;
      letter-spacing: -0.03em;
      margin: 0 0 0.8rem;
      line-height: 1.15;
    }
    p { margin: 0 0 1rem; }
    .muted { color: var(--muted); }

    #speak .chapter-body { max-width: none; }
    .talk-panel {
      background: var(--bg-2);
      border: 1px solid var(--rule);
      border-radius: 0.55rem;
      padding: clamp(1.5rem, 3vw, 2.2rem);
      display: grid;
      grid-template-columns: 1fr minmax(7rem, 9.5rem);
      gap: 1.5rem 2rem;
      position: relative;
      overflow: hidden;
      box-shadow: 0 16px 40px var(--shadow);
    }
    .talk-panel::before {
      content: "";
      position: absolute;
      width: 260px;
      height: 260px;
      right: -80px;
      top: -100px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(11,127,107,0.12), transparent 70%);
      pointer-events: none;
    }
    .talk-panel .kicker { color: var(--accent); }
    .talk-panel h2 { color: var(--ink); font-size: clamp(1.7rem, 3.2vw, 2.15rem); max-width: 16ch; }
    .talk-deck { font-size: 1.08rem; color: var(--ink-soft); margin-bottom: 0.85rem; }
    .talk-panel .muted { margin-bottom: 0; }
    .talk-aside {
      align-self: stretch;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      border-left: 1px solid var(--rule);
      padding-left: 1.15rem;
      font-family: var(--mono);
      font-size: 0.7rem;
      letter-spacing: 0.1em;
      text-transform: uppercase;
      font-weight: 500;
      color: var(--muted);
      line-height: 1.45;
    }
    .talk-aside strong {
      display: block;
      color: var(--ink);
      font-size: 0.74rem;
      margin-bottom: 0.3rem;
    }
    .talk-aside a {
      color: var(--accent);
      text-decoration: none;
      border-bottom: 1px solid color-mix(in srgb, var(--accent) 35%, transparent);
    }
    .talk-aside a:hover { border-color: var(--accent); }

    .consult-grid { display: grid; gap: 1.25rem; }
    .also {
      margin-top: 0.2rem;
      padding: 1.25rem 1.3rem;
      background: var(--bg-2);
      border: 1px solid var(--rule);
      border-left: 3px solid var(--accent);
      border-radius: 0 0.45rem 0.45rem 0;
      display: grid;
      gap: 0.7rem;
    }
    .also-label {
      font-family: var(--mono);
      font-size: 0.7rem;
      letter-spacing: 0.12em;
      text-transform: uppercase;
      font-weight: 500;
      color: var(--accent);
      margin: 0;
    }
    .also strong {
      display: block;
      font-family: var(--sans);
      font-weight: 650;
      font-size: 1.15rem;
      letter-spacing: -0.02em;
      margin: 0;
    }
    ul.plain {
      list-style: none;
      padding: 0;
      margin: 0;
      display: grid;
      gap: 0.65rem;
    }
    ul.plain li {
      margin: 0;
      padding-left: 1rem;
      position: relative;
      color: var(--ink-soft);
    }
    ul.plain li::before {
      content: "";
      position: absolute;
      left: 0;
      top: 0.65em;
      width: 0.4rem;
      height: 1px;
      background: var(--accent);
    }

    #contact { border-bottom: none; padding-bottom: 2.5rem; }
    .contact-primary { margin: 1.15rem 0 0.8rem; }
    .contact-primary .phone {
      font-family: var(--mono);
      font-size: clamp(1.7rem, 3.8vw, 2.2rem);
      font-weight: 500;
      letter-spacing: -0.03em;
      color: var(--ink);
      text-decoration: none;
      border-bottom: 2px solid var(--accent);
      display: inline-block;
      line-height: 1.15;
      transition: color 0.15s ease;
    }
    .contact-primary .phone:hover { color: var(--accent); }
    .contact-primary .hint {
      margin: 0.5rem 0 0;
      font-size: 0.92rem;
      color: var(--muted);
    }
    .contact-email { margin: 1.05rem 0 1rem; color: var(--ink-soft); }
    .contact-email a {
      color: var(--accent-2);
      font-weight: 600;
      text-decoration: none;
      border-bottom: 1px solid color-mix(in srgb, var(--accent-2) 40%, transparent);
    }
    .contact-email a:hover { color: var(--accent); border-color: var(--accent); }

    footer {
      padding: 1.6rem 0 3rem;
      border-top: 1px solid var(--rule);
      color: var(--muted);
      font-size: 0.9rem;
      display: flex;
      justify-content: space-between;
      gap: 1rem;
      flex-wrap: wrap;
      align-items: baseline;
    }
    footer .who {
      color: var(--ink);
      font-weight: 650;
    }
    footer .who::after {
      content: " · The AI Guy";
      font-family: var(--sans);
      font-style: normal;
      font-weight: 600;
      color: var(--accent);
    }

    .mobile-bar { display: none; }

    @media (max-width: 820px) {
      .hero {
        grid-template-columns: 1fr;
        padding: 2.5rem 0;
        gap: 1.5rem;
      }
      .hero-plate { order: -1; }
      .plate { min-height: 200px; }
      .monogram { font-size: 4.5rem; }
      .proof-list { grid-template-columns: 1fr; }
      .chapter {
        grid-template-columns: 1fr;
        gap: 0.3rem;
        padding: 2.5rem 0;
      }
      .talk-panel { grid-template-columns: 1fr; }
      .talk-aside {
        border-left: none;
        border-top: 1px solid var(--rule);
        padding: 1rem 0 0;
        flex-direction: row;
        gap: 1.25rem;
      }
      nav { display: none; }
      body { padding-bottom: 5.25rem; }
      .mobile-bar {
        display: flex;
        position: fixed;
        left: 0;
        right: 0;
        bottom: 0;
        z-index: 30;
        gap: 0.55rem;
        padding: 0.75rem 0.9rem calc(0.75rem + env(safe-area-inset-bottom, 0px));
        background: color-mix(in srgb, var(--bg) 92%, transparent);
        border-top: 1px solid var(--rule);
        box-shadow: 0 -12px 30px var(--shadow);
        backdrop-filter: blur(12px);
      }
      .mobile-bar .btn { flex: 1; min-height: 2.85rem; }
      .mobile-bar .btn-ghost { flex: 0.85; }
    }
  
    /* ------------------------------------------------------------------
       2026-09 refresh: shared bits for every page (home, speaking,
       AI assessment, case studies, /es/). One stylesheet, no inline copy.
       ------------------------------------------------------------------ */
    .kicker { color: var(--accent); }
    nav { align-items: center; }
    nav a.nav-cta {
      color: var(--accent);
      border: 1px solid color-mix(in srgb, var(--accent) 45%, transparent);
      border-radius: 0.3rem;
      padding: 0.3rem 0.55rem;
    }
    nav a.nav-cta:hover { color: #fff; background: var(--accent); border-color: var(--accent); }
    nav a.lang { color: var(--ink); }
    .btn-teal { background: var(--accent); color: #fff; box-shadow: 0 1px 2px var(--shadow); }
    .btn-teal:hover { background: #096a5a; }

    .offers {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 1rem;
    }
    .offer {
      background: var(--bg-2);
      border: 1px solid var(--rule);
      border-radius: 0.55rem;
      padding: clamp(1.3rem, 2.6vw, 1.8rem);
      display: flex;
      flex-direction: column;
      gap: 0.2rem;
      box-shadow: 0 10px 28px var(--shadow);
    }
    .offer h3 {
      margin: 0 0 0.3rem;
      font-size: 1.35rem;
      letter-spacing: -0.02em;
      line-height: 1.2;
    }
    .offer .sub { color: var(--ink-soft); font-weight: 500; margin: 0 0 0.6rem; }
    .offer p { color: var(--muted); }
    .offer .actions { margin-top: auto; padding-top: 0.6rem; }
    .price {
      font-family: var(--mono);
      font-size: 0.8rem;
      font-weight: 600;
      letter-spacing: 0.04em;
      color: var(--accent);
      margin: 0 0 0.35rem;
    }
    .subheads { display: grid; gap: 0.6rem; margin: 0.4rem 0 1rem; }
    .subheads div {
      border-left: 3px solid var(--accent);
      padding: 0.15rem 0 0.15rem 0.8rem;
    }
    .subheads strong { display: block; color: var(--ink); font-weight: 600; line-height: 1.35; }
    .subheads span {
      font-family: var(--mono);
      font-size: 0.68rem;
      letter-spacing: 0.1em;
      text-transform: uppercase;
      color: var(--muted);
    }
    ol.steps { list-style: none; padding: 0; margin: 0 0 1.25rem; display: grid; gap: 0.75rem; }
    ol.steps li {
      display: grid;
      grid-template-columns: 2rem minmax(0, 1fr);
      gap: 0.25rem 0.75rem;
      background: var(--bg-2);
      border: 1px solid var(--rule);
      border-radius: 0.45rem;
      padding: 0.95rem 1.05rem;
    }
    ol.steps .num { font-family: var(--mono); font-size: 0.85rem; font-weight: 600; color: var(--accent); padding-top: 0.1rem; }
    ol.steps strong { display: block; font-weight: 650; letter-spacing: -0.01em; }
    ol.steps span { color: var(--muted); font-size: 0.97rem; }
    .small-line { font-size: 0.93rem; color: var(--muted); margin-top: 1.25rem; }
    .terms { margin: 1.6rem 0 1.4rem; }
    .small-line a { color: var(--accent); }

    /* two-column page with a sticky form card (assessment, speaking) */
    .page-wrap {
      width: var(--shell);
      margin: 0 auto;
      padding: 3rem 0 4rem;
      position: relative;
      z-index: 1;
      display: grid;
      grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
      gap: 0 3rem;
      align-items: start;
    }
    .page-wrap h1 { font-size: clamp(1.9rem, 4.2vw, 2.6rem); max-width: 20ch; color: var(--ink); line-height: 1.12; }
    .page-wrap h2 { font-size: 1.3rem; margin-top: 2rem; }
    .who-line { display: flex; gap: 0.9rem; align-items: center; color: var(--ink-soft); font-size: 0.97rem; margin-top: 1.5rem; }
    .who-line img { width: 3.25rem; height: 3.25rem; border-radius: 50%; object-fit: cover; object-position: center 18%; border: 1px solid var(--rule); flex-shrink: 0; }
    .who-line p { margin: 0; }
    .form-card {
      background: var(--bg-2);
      border: 1px solid var(--rule);
      border-radius: 0.55rem;
      padding: clamp(1.4rem, 3vw, 2rem);
      box-shadow: 0 16px 40px var(--shadow);
      position: sticky;
      top: 5.5rem;
    }
    .form-card h2 { font-size: 1.4rem; margin: 0 0 0.4rem; }
    .form-card > p { color: var(--muted); font-size: 0.97rem; }
    .lead-form { display: grid; gap: 0.95rem; margin-top: 1.1rem; }
    .field { display: grid; gap: 0.35rem; }
    .field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 0.95rem; }
    .field label { font-weight: 600; font-size: 0.92rem; color: var(--ink-soft); }
    .field__opt { font-weight: 400; color: var(--muted); }
    .field input, .field select, .field textarea {
      font: inherit; font-size: 1rem; padding: 0.65rem 0.8rem;
      border: 1px solid var(--rule); border-radius: 0.35rem;
      background: var(--bg); color: var(--ink); width: 100%;
    }
    .field textarea { min-height: 6.5rem; resize: vertical; }
    .field input:focus, .field select:focus, .field textarea:focus {
      outline: 2px solid color-mix(in srgb, var(--accent) 55%, transparent);
      outline-offset: 1px; border-color: var(--accent); background: #fff;
    }
    .field [aria-invalid="true"] { border-color: var(--danger-soft); }
    .field-error { margin: 0; font-size: 0.85rem; color: var(--danger-soft); }
    .field-error:empty { display: none; }
    .lead-form .btn { border: 0; cursor: pointer; font: inherit; font-weight: 600; width: 100%; min-height: 2.9rem; }
    .lead-form .btn:disabled { opacity: 0.6; cursor: progress; }
    .form-status { margin: 0; font-weight: 600; color: var(--accent); }
    .form-status:empty { display: none; }
    .form-status[data-state="error"] { color: var(--danger-soft); font-weight: 500; }
    .trap { position: absolute !important; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
    .fine { margin: 1rem 0 0; font-size: 0.88rem; color: var(--muted); }
    .fine a { color: var(--accent); text-decoration: none; border-bottom: 1px solid color-mix(in srgb, var(--accent) 40%, transparent); }

    .site-footer {
      width: var(--shell);
      margin: 0 auto;
      position: relative;
      z-index: 1;
      padding: 1.6rem 0 3rem;
      border-top: 1px solid var(--rule);
      color: var(--muted);
      font-size: 0.9rem;
      display: flex;
      justify-content: space-between;
      gap: 0.6rem 1.5rem;
      flex-wrap: wrap;
    }
    .site-footer a { color: var(--muted); text-decoration: none; border-bottom: 1px solid var(--rule); }
    .site-footer a:hover { color: var(--accent); border-color: var(--accent); }
    .site-footer .who { color: var(--ink); font-weight: 650; }
    .site-footer .who::after { content: none; }
    .site-footer .sister { font-size: 0.82rem; }

    @media (max-width: 820px) {
      .offers { grid-template-columns: 1fr; }
      .page-wrap { grid-template-columns: 1fr; padding: 2rem 0 3rem; }
      .form-card { position: static; margin-top: 1.5rem; }
      .field-row { grid-template-columns: 1fr; }
      .site-footer { flex-direction: column; }
    }

    /* Phones: keep a compact nav instead of hiding it, so subpages
       (speaking, assessment, case studies) are never a dead end. */
    @media (max-width: 820px) {
      header { flex-wrap: wrap; row-gap: 0.55rem; padding: 0.8rem 0 0.7rem; }
      nav {
        display: flex;
        width: 100%;
        gap: 1rem;
        font-size: 0.7rem;
        overflow-x: auto;
        white-space: nowrap;
        scrollbar-width: none;
      }
      nav::-webkit-scrollbar { display: none; }
    }