:root {
      --purple: #3200ac;
      --purple-deep: #1a0066;
      --highlight: #91fcf4;
      --highlight-soft: #91fcf447;
      --surface: #fafaf7;
      --surface-warm: #f2f1e9;
      --text: #2f2f33;
      --muted: #2f2f33a3;
      --subtle: #2f2f3333;
      --placeholder: #2f2f3370;
      --danger: #a43648;
      --success: #1a7a5c;
      --border: #2f2f3318;
      --radius-btn: 2px;
      --max: 1120px;
      --font-serif: "Playfair Display", Georgia, serif;
      --font-sans: "Roboto Condensed", Arial, sans-serif;
    }

    * { box-sizing: border-box; }
    html, body { margin: 0; padding: 0; background: var(--surface); color: var(--text); font-family: var(--font-sans); }
    body { min-height: 100vh; }
    a { color: inherit; }
    button { font: inherit; }

    /* Demo chrome */
    .demo-bar {
      position: sticky; top: 0; z-index: 100;
      background: var(--purple-deep); color: #fff;
      display: flex; flex-wrap: wrap; gap: 8px; align-items: center;
      padding: 8px 16px; font-size: .75rem; letter-spacing: .02em; font-weight: 400;
    }
    .demo-bar strong { font-weight: 500; margin-right: 8px; }
    .demo-bar .badge {
      background: var(--highlight); color: var(--purple-deep);
      padding: 2px 8px; border-radius: 999px; font-size: .625rem; font-weight: 500;
      letter-spacing: .06em; text-transform: uppercase;
    }
    .demo-nav { display: flex; flex-wrap: wrap; gap: 4px; margin-left: auto; }
    .demo-nav button {
      background: transparent; border: 0; color: #ffffffbb;
      padding: 4px 8px; border-radius: var(--radius-btn); cursor: pointer;
      font-size: .6875rem; font-weight: 400; letter-spacing: .04em;
    }
    .demo-nav button[aria-current="true"], .demo-nav button:hover {
      background: #ffffff18; color: #fff;
    }
    .demo-nav button[data-screen="operator"] { opacity: .85; }
    .demo-nav button[data-screen="operator"]::after {
      content: " · route"; font-size: .6rem; opacity: .7;
    }

    .screen { display: none; min-height: calc(100vh - 48px); }
    .screen.is-active { display: block; }

    /* Site chrome — light, meet-theo-like */
    .site-header {
      display: flex; align-items: flex-end; justify-content: space-between;
      gap: clamp(24px, 4vw, 64px); max-width: var(--max); margin: 0 auto;
      padding: 18px 24px 0; min-height: 52px;
    }
    .brand {
      display: inline-flex; align-items: baseline; gap: 10px; flex-wrap: wrap;
      text-decoration: none; color: var(--text);
    }
    .brand-name {
      font-family: var(--font-serif); font-size: 1.125rem; font-weight: 400;
      letter-spacing: -.02em; line-height: 1;
    }
    .brand-name span { color: var(--purple); font-weight: 500; }
    .powered-by {
      display: inline-flex; align-items: center; gap: 6px;
      font-size: .625rem; font-weight: 400; letter-spacing: .08em;
      text-transform: uppercase; color: var(--muted); line-height: 1;
      padding-bottom: 1px;
    }
    .powered-by .theo-word {
      letter-spacing: .08em; color: var(--muted);
    }
    .powered-by .theo-mark,
    .powered-by img.theo-mark {
      width: 14px; height: 14px; display: block; flex: none;
    }
    .theo-mark { width: 100%; height: auto; display: block; }
    .theo-mark--lg { width: min(42vw, 220px); }
    .theo-mark--md { width: 40px; height: 40px; }
    .theo-mark--sm { width: 14px; height: 14px; }

    .header-actions { display: flex; align-items: baseline; gap: 28px; }
    .locale-switcher {
      display: inline-flex; gap: 8px; align-items: baseline;
      font-size: .625rem; font-weight: 400; letter-spacing: .08em;
    }
    .locale-switcher button {
      background: none; border: 0; padding: 2px 0; cursor: pointer;
      color: var(--text); text-decoration: underline;
      text-decoration-color: var(--purple); text-underline-offset: 4px;
      text-decoration-thickness: 1px; font: inherit; letter-spacing: inherit;
      font-weight: 400;
    }
    .locale-switcher button[aria-current="true"] {
      color: var(--muted); text-decoration: none; cursor: default;
    }

    .nav-link {
      background: none; border: 0; cursor: pointer; padding: 2px 0;
      font-size: .8125rem; font-weight: 400; color: var(--muted);
      text-decoration: none; letter-spacing: .01em;
    }
    .nav-link:hover { color: var(--text); }

    .page {
      max-width: var(--max); margin: 0 auto; padding: 48px 24px 80px;
    }
    .page--narrow { max-width: 720px; }
    .page--wide { max-width: 1280px; }

    .eyebrow {
      margin: 0 0 14px; font-size: .6875rem; font-weight: 400;
      letter-spacing: .1em; text-transform: uppercase; color: var(--purple);
    }
    h1 {
      margin: 0; font-family: var(--font-serif); font-weight: 400;
      letter-spacing: -.025em; line-height: 1.05;
      font-size: clamp(2.4rem, 6vw, 4.5rem);
    }
    h2 {
      margin: 0; font-family: var(--font-serif); font-weight: 400;
      letter-spacing: -.02em; line-height: 1.15;
      font-size: clamp(1.6rem, 3vw, 2.25rem);
    }
    .lede {
      margin: 24px 0 0; max-width: 36em;
      font-size: clamp(1.05rem, 1.5vw, 1.25rem); line-height: 1.5; color: var(--text);
    }
    .muted { color: var(--muted); }
    .example-tag {
      display: inline-block; margin-left: 8px; padding: 2px 8px;
      background: var(--highlight-soft); color: var(--purple);
      border-radius: 999px; font-size: .6875rem; font-weight: 600;
      letter-spacing: .06em; text-transform: uppercase; vertical-align: middle;
    }

    .btn {
      display: inline-flex; align-items: center; justify-content: center;
      gap: 8px; min-height: 52px; padding: 14px 24px;
      border: 1px solid var(--purple); border-radius: var(--radius-btn);
      background: var(--purple); color: var(--surface);
      font-family: var(--font-sans); font-size: .9375rem; font-weight: 400;
      text-decoration: none; cursor: pointer; transition: opacity .16s;
    }
    .btn:hover { opacity: .78; }
    .btn:focus-visible { outline: 2px solid var(--purple); outline-offset: 4px; }
    .btn--ghost {
      background: transparent; color: var(--purple);
    }
    .btn--soft {
      background: var(--highlight); border-color: var(--highlight); color: var(--purple-deep);
    }
    .btn-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }

    /* Landing */
    .hero {
      display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(260px, .85fr);
      gap: clamp(40px, 6vw, 96px); align-items: center;
      padding: 56px 24px 80px; max-width: var(--max); margin: 0 auto;
    }
    .hero-visual {
      aspect-ratio: 4/5; border-radius: 4px; background: var(--surface-warm);
      position: relative; overflow: hidden;
      display: grid; place-items: center; padding: 32px;
    }
    .hero-card {
      width: 100%; background: #fff; border: 0;
      padding: 28px 24px; box-shadow: 0 18px 48px #3200ac0f;
    }
    .hero-card .mini-q {
      font-family: var(--font-serif); font-size: 1.5rem; line-height: 1.2; margin: 0 0 20px;
    }
    .chip-row { display: flex; flex-wrap: wrap; gap: 8px; }
    .chip {
      border: 1px solid var(--text); padding: 10px 14px; font-size: .875rem;
      background: #fff; cursor: default;
    }
    .chip.is-on { background: var(--text); color: var(--surface); }
    .progress-thin {
      height: 3px; background: var(--subtle); margin: 24px 0 8px; overflow: hidden;
    }
    .progress-thin > span { display: block; height: 100%; width: 42%; background: var(--purple); }
    .stat-line { font-size: .8125rem; color: var(--muted); }

    .feature-grid {
      display: grid; grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 20px; max-width: var(--max); margin: 0 auto; padding: 0 24px 96px;
    }
    .feature {
      background: transparent; border: 0; border-top: 1px solid var(--subtle); padding: 28px 4px 8px;
    }
    .feature h3 {
      margin: 0 0 10px; font-family: var(--font-serif); font-size: 1.25rem; font-weight: 400;
    }
    .feature p { margin: 0; color: var(--muted); line-height: 1.45; font-size: .9375rem; font-weight: 400; }

    /* Auth */
    .auth-shell {
      display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(22rem, .9fr);
      gap: clamp(40px, 6vw, 100px); align-items: center;
      max-width: 1100px; margin: 0 auto; padding: 48px 24px 80px; min-height: calc(100vh - 120px);
    }
    .auth-visual {
      background: var(--surface-warm); min-height: 420px;
      display: grid; place-items: center; border-radius: 4px; position: relative; overflow: hidden;
    }
    .auth-visual .theo-mark--lg { width: min(58%, 240px); }
    .auth-card { display: grid; gap: 1rem; max-width: 31rem; }
    .auth-card h1 { font-size: clamp(2rem, 4vw, 2.75rem); }
    .auth-card p { margin: 0; color: var(--muted); line-height: 1.45; }

    .line-input {
      width: 100%; border: 0; border-bottom: 2px solid var(--text);
      background: transparent; color: var(--text); caret-color: var(--purple);
      padding: 8px 0 14px; outline: 0; border-radius: 0;
      font-family: var(--font-serif);
      font-size: clamp(1.5rem, 3vw, 2.4rem); line-height: 1.25;
    }
    .line-input:focus { border-color: var(--purple); }
    .line-input::placeholder { color: var(--placeholder); opacity: 1; }
    .field-label {
      margin: 28px 0 8px; font-size: .75rem; font-weight: 600;
      letter-spacing: .08em; text-transform: uppercase; color: var(--muted);
    }
    .form-note {
      margin-top: 16px; font-size: .875rem; color: var(--muted); line-height: 1.4;
    }
    .magic-preview {
      margin-top: 28px; padding: 20px; background: var(--highlight-soft);
      border-left: 3px solid var(--purple);
    }
    .magic-preview code {
      display: block; margin-top: 8px; font-family: ui-monospace, monospace;
      font-size: .8125rem; word-break: break-all; color: var(--purple-deep);
    }

    /* Invite */
    .invite-banner {
      display: flex; gap: 16px; align-items: flex-start;
      padding: 18px 0 22px; background: transparent; border: 0;
      border-bottom: 1px solid var(--subtle); margin-bottom: 36px;
    }
    .avatar {
      width: 48px; height: 48px; border-radius: 50%; flex: none;
      background: linear-gradient(135deg, var(--highlight), var(--purple));
      color: #fff; display: grid; place-items: center;
      font-family: var(--font-serif); font-size: 1.1rem; font-weight: 500;
    }
    .invite-banner strong { display: block; font-weight: 600; margin-bottom: 4px; }
    .invite-banner p { margin: 0; color: var(--muted); font-size: .9375rem; line-height: 1.4; }

    /* Flow */
    .flow-top {
      display: flex; flex-wrap: wrap; justify-content: space-between; gap: 16px;
      align-items: center; margin-bottom: 36px;
    }
    .flow-meta { display: flex; flex-wrap: wrap; gap: 16px; align-items: center; font-size: .875rem; color: var(--muted); }
    .pill {
      display: inline-flex; align-items: center; gap: 6px;
      padding: 4px 10px; border-radius: 999px; background: var(--surface-warm);
      color: var(--text); font-size: .75rem; font-weight: 400;
    }
    .pill .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--purple); }
    .xp { color: var(--purple); font-weight: 600; }

    .flow-progress {
      height: 4px; background: var(--subtle); margin-bottom: 40px; overflow: hidden;
    }
    .flow-progress > span { display: block; height: 100%; background: var(--purple); transition: width .3s; }

    .flow-tabs { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 28px; }
    .flow-tabs button {
      border: 0; background: transparent; padding: 8px 2px; margin-right: 16px;
      cursor: pointer; font-size: .8125rem; font-weight: 400; border-radius: 0;
      color: var(--muted); border-bottom: 1px solid transparent;
    }
    .flow-tabs button:hover { color: var(--text); }
    .flow-tabs button[aria-current="true"] {
      background: transparent; color: var(--text); border-bottom-color: var(--purple);
    }

    .flow-panel { display: none; }
    .flow-panel.is-active { display: block; animation: fadein .35s ease; }
    @keyframes fadein { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

    .q-type {
      margin: 0 0 12px; font-size: .75rem; font-weight: 600;
      letter-spacing: .1em; text-transform: uppercase; color: var(--purple);
    }
    .q-title {
      margin: 0 0 28px; font-family: var(--font-serif); font-weight: 500;
      font-size: clamp(1.75rem, 3.5vw, 2.75rem); letter-spacing: -.02em; line-height: 1.15;
    }

    .choice-grid {
      display: grid; grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 8px; max-width: 920px;
    }
    .choice {
      border: 1px solid var(--text); min-height: 56px; padding: 14px 18px;
      background: #fff; cursor: pointer; text-align: left;
      display: flex; align-items: center; gap: 12px; transition: background .16s, color .16s;
      font-size: 1rem;
    }
    .choice::before {
      content: ""; width: 12px; height: 12px; flex: none;
      border: 1px solid var(--text);
    }
    .choice.is-selected { background: var(--text); color: var(--surface); }
    .choice.is-selected::before { border-color: var(--highlight); background: var(--highlight); }

    .challenge-box {
      background: #fff; border: 1px solid var(--border); padding: 28px;
      max-width: 720px;
    }
    .challenge-box .hint { margin: 12px 0 0; color: var(--muted); line-height: 1.45; }
    .textarea {
      width: 100%; min-height: 120px; margin-top: 20px; padding: 14px 16px;
      border: 1px solid var(--border); background: var(--highlight-soft);
      font-family: var(--font-sans); font-size: 1rem; line-height: 1.45; resize: vertical;
      color: var(--text); outline: none;
    }
    .textarea:focus { border-color: var(--purple); }

    .vote-scale {
      display: grid; grid-template-columns: repeat(5, minmax(0, 1fr));
      gap: 8px; max-width: 640px; margin-top: 8px;
    }
    .vote-opt {
      border: 1px solid var(--text); background: #fff; padding: 18px 8px;
      text-align: center; cursor: pointer; font-weight: 500;
    }
    .vote-opt small { display: block; margin-top: 6px; font-weight: 400; color: var(--muted); font-size: .7rem; }
    .vote-opt.is-selected { background: var(--purple); color: #fff; border-color: var(--purple); }
    .vote-opt.is-selected small { color: #ffffffbb; }
    .vote-labels {
      display: flex; justify-content: space-between; max-width: 640px;
      margin-top: 10px; font-size: .75rem; color: var(--muted);
    }

    .pause-overlay {
      display: none; margin-top: 32px; padding: 28px; background: var(--surface-warm);
      border-left: 4px solid var(--purple); max-width: 640px;
    }
    .pause-overlay.is-open { display: block; animation: fadein .3s ease; }
    .pause-overlay h3 { margin: 0 0 8px; font-family: var(--font-serif); font-size: 1.5rem; font-weight: 500; }
    .pause-overlay p { margin: 0; color: var(--muted); line-height: 1.45; }

    /* Feedback / Profile */
    .profile-hero {
      display: grid; grid-template-columns: auto 1fr; gap: 24px; align-items: center;
      margin-bottom: 40px;
    }
    .profile-avatar {
      width: 88px; height: 88px; border-radius: 50%;
      background:
        radial-gradient(circle at 30% 30%, var(--highlight), transparent 50%),
        var(--purple);
      color: #fff; display: grid; place-items: center;
      font-family: var(--font-serif); font-size: 2rem; font-weight: 500;
    }
    .level-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 12px; }
    .profile-grid {
      display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px;
    }
    .card {
      background: #fff; border: 0; box-shadow: 0 1px 0 var(--subtle); padding: 24px 22px;
    }
    .card h3 {
      margin: 0 0 12px; font-family: var(--font-serif); font-size: 1.2rem; font-weight: 400;
    }
    .tag-cloud { display: flex; flex-wrap: wrap; gap: 8px; }
    .tag {
      padding: 8px 12px; background: var(--surface-warm); font-size: .875rem;
      border-radius: 999px;
    }
    .meter { height: 8px; background: var(--subtle); margin-top: 10px; overflow: hidden; }
    .meter > span { display: block; height: 100%; background: var(--purple); }
    .insight { margin: 0; color: var(--muted); line-height: 1.5; font-size: .95rem; }
    .insight + .insight { margin-top: 12px; }
    .growth-note {
      grid-column: 1 / -1; background: var(--highlight-soft);
      border: 1px solid #91fcf466; padding: 24px;
    }
    .empty-hint {
      margin-top: 8px; font-size: .8125rem; color: var(--muted); font-style: italic;
    }

    /* Operator dashboard */
    .dash-header {
      display: flex; flex-wrap: wrap; justify-content: space-between; gap: 16px;
      align-items: end; margin-bottom: 32px;
    }
    .kpi-row {
      display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px;
      margin-bottom: 28px;
    }
    .kpi {
      background: #fff; border: 0; box-shadow: 0 1px 0 var(--subtle); padding: 20px 18px;
    }
    .kpi .label { font-size: .75rem; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
    .kpi .value {
      margin-top: 8px; font-family: var(--font-serif); font-size: 2rem; font-weight: 500;
      letter-spacing: -.02em;
    }
    .kpi .delta { margin-top: 6px; font-size: .8125rem; color: var(--success); }

    .dash-grid {
      display: grid; grid-template-columns: 1.2fr .8fr; gap: 16px;
    }
    .tree {
      font-size: .9rem; line-height: 1.6;
    }
    .tree ul { list-style: none; margin: 8px 0 0; padding-left: 18px; border-left: 1px solid var(--subtle); }
    .tree li { margin: 4px 0; }
    .tree .node {
      display: inline-flex; align-items: center; gap: 8px;
      padding: 4px 8px; background: var(--surface-warm); border-radius: 4px;
    }
    .milieu-bars { display: grid; gap: 14px; }
    .milieu-row { display: grid; grid-template-columns: 110px 1fr 40px; gap: 10px; align-items: center; font-size: .875rem; }
    .bar { height: 10px; background: var(--subtle); overflow: hidden; }
    .bar > span { display: block; height: 100%; background: var(--purple); }
    .table { width: 100%; border-collapse: collapse; font-size: .875rem; margin-top: 8px; }
    .table th, .table td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--border); }
    .table th { font-weight: 600; color: var(--muted); font-size: .75rem; letter-spacing: .06em; text-transform: uppercase; }
    .status {
      display: inline-block; padding: 2px 8px; border-radius: 999px;
      background: var(--highlight-soft); color: var(--purple); font-size: .75rem; font-weight: 600;
    }

    .site-footer {
      max-width: var(--max); margin: 0 auto; padding: 28px 24px 40px;
      display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; align-items: center;
      font-size: .75rem; font-weight: 400; color: var(--muted); border-top: 1px solid var(--subtle);
    }
    .site-footer .powered-by { text-transform: none; letter-spacing: .02em; font-size: .75rem; }
    .site-footer .powered-by .theo-mark { width: 16px; height: 16px; }
    .auth-powered {
      margin-top: 8px; margin-bottom: 4px;
    }
    .op-route-hint {
      margin: 0 0 8px; font-size: .6875rem; color: var(--muted); letter-spacing: .04em;
    }

    @media (max-width: 900px) {
      .hero, .auth-shell, .dash-grid, .profile-grid, .feature-grid, .kpi-row {
        grid-template-columns: 1fr;
      }
      .choice-grid { grid-template-columns: 1fr; }
      .vote-scale { grid-template-columns: repeat(5, minmax(0, 1fr)); }
      .auth-visual { min-height: 220px; }
      .demo-nav { margin-left: 0; width: 100%; }
    }