:root {
    /* warm palette (default) */
    --cream-50: #FBF6EC;
    --cream-100: #F5ECD7;
    --cream-200: #EADDBE;
    --ink-900: #1C1410;
    --ink-700: #3A2A20;
    --ink-500: #6B5647;
    --ink-400: #8C7866;
    --maroon-900: #5C1A1B;
    --maroon-700: #7A2324;
    --maroon-500: #A23A3B;
    --gold-600: #B48A3A;
    --gold-500: #D1A24E;
    --gold-300: #E8C98A;
    --olive-700: #5B6B2E;
    --olive-500: #7C8F3E;
    --ring-red:    #B83A2E;
    --ring-orange: #E08A2A;
    --ring-gold:   #D4A83A;
    --ring-green:  #5B7A2E;
    --ring-blue:   #3A6FA3;

    --bg: var(--cream-50);
    --surface: var(--cream-100);
    --ink: var(--ink-900);
    --muted: var(--ink-500);
    --accent: var(--maroon-700);
    --accent-soft: var(--maroon-500);
    --gold: var(--gold-600);
    --rule: color-mix(in oklab, var(--ink-900) 12%, transparent);

    --f-display: 'Fraunces', 'Instrument Serif', ui-serif, Georgia, serif;
    --f-serif:   'Instrument Serif', 'Fraunces', ui-serif, Georgia, serif;
    --f-sans:    'Inter', ui-sans-serif, system-ui, sans-serif;

    --pad-section: clamp(80px, 10vw, 140px);
    --pad-x: clamp(20px, 5vw, 64px);
    --max: 1240px;
  }
  html[data-theme="vibrant"] {
    --bg: #FFF8EC;
    --surface: #FEEFD4;
    --accent: #B83A2E;
    --accent-soft: #E08A2A;
  }
  html[data-theme="civic"] {
    --bg: #F4F1EB;
    --surface: #ECE6DA;
    --accent: #2B3A4A;
    --accent-soft: #4A5B6E;
    --gold: #8C7542;
  }
  html[data-spacing="dense"] { --pad-section: clamp(56px, 7vw, 96px); }
  html[data-font="inter"] { --f-display: 'Inter', ui-sans-serif, system-ui, sans-serif; }

  * { box-sizing: border-box; }
  html, body { margin: 0; padding: 0; }
  body {
    font-family: var(--f-sans);
    color: var(--ink);
    background: var(--bg);
    font-size: 17px;
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
  }
  h1,h2,h3,h4 { font-family: var(--f-display); font-weight: 600; letter-spacing: -0.01em; margin: 0; }
  h1 { font-size: clamp(44px, 6.4vw, 96px); line-height: 1.02; letter-spacing: -0.025em; }
  h2 { font-size: clamp(32px, 4.2vw, 56px); line-height: 1.05; letter-spacing: -0.02em; }
  h3 { font-size: clamp(22px, 2.2vw, 28px); line-height: 1.15; }
  p { margin: 0; }
  a { color: inherit; }

  .wrap { max-width: var(--max); margin: 0 auto; padding: 0 var(--pad-x); }
  .rule { height: 1px; background: var(--rule); width: 100%; }

  /* ==================== header ==================== */
  header.site {
    position: sticky; top: 0; z-index: 50;
    background: color-mix(in oklab, var(--bg) 92%, transparent);
    backdrop-filter: saturate(1.2) blur(10px);
    -webkit-backdrop-filter: saturate(1.2) blur(10px);
    border-bottom: 1px solid var(--rule);
  }
  html[data-header="dark"] header.site {
    background: var(--ink-900);
    color: var(--cream-50);
    border-bottom-color: color-mix(in oklab, var(--cream-50) 15%, transparent);
  }
  .nav {
    display: flex; align-items: center; justify-content: space-between;
    padding: 14px 0; gap: 24px;
  }
  .brand { display: flex; align-items: center; gap: 12px; text-decoration: none; color: inherit; }
  .brand img { width: 44px; height: 44px; border-radius: 50%; display: block; }
  .brand .bt { line-height: 1; }
  .brand .bt strong { font-family: var(--f-display); font-weight: 700; font-size: 18px; letter-spacing: -0.01em; display: block; }
  .brand .bt span { font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); }
  html[data-header="dark"] .brand .bt span { color: color-mix(in oklab, var(--cream-50) 70%, transparent); }

  nav.links { display: flex; gap: 28px; align-items: center; }
  nav.links a {
    text-decoration: none; font-size: 14px; font-weight: 500;
    color: inherit; opacity: 0.8;
  }
  nav.links a:hover { opacity: 1; }

  .btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 12px 20px;
    border-radius: 999px;
    background: var(--accent);
    color: #FBF6EC;
    text-decoration: none;
    font-weight: 600;
    font-size: 14px;
    letter-spacing: 0.01em;
    border: 1px solid var(--accent);
    transition: transform 0.15s ease, background 0.2s ease;
    white-space: nowrap;
  }
  .btn:hover { background: var(--maroon-900); transform: translateY(-1px); }
  .btn.ghost {
    background: transparent; color: var(--ink);
    border: 1px solid color-mix(in oklab, var(--ink-900) 30%, transparent);
  }
  html[data-header="dark"] .btn.ghost { color: var(--cream-50); border-color: color-mix(in oklab, var(--cream-50) 30%, transparent); }
  .btn.ghost:hover { background: color-mix(in oklab, var(--ink-900) 6%, transparent); }
  .btn .arr { transition: transform .2s; }
  .btn:hover .arr { transform: translateX(3px); }

  /* ==================== hero ==================== */
  .hero {
    position: relative;
    overflow: hidden;
    padding-top: clamp(60px, 8vw, 110px);
    padding-bottom: clamp(80px, 10vw, 140px);
  }
  .hero .bg-wash {
    position: absolute; inset: 0;
    background:
      radial-gradient(900px 500px at 85% 10%, color-mix(in oklab, var(--gold-300) 40%, transparent), transparent 60%),
      radial-gradient(700px 500px at 10% 90%, color-mix(in oklab, var(--maroon-500) 15%, transparent), transparent 60%);
    pointer-events: none;
  }
  .hero-grid {
    display: grid;
    grid-template-columns: 1.3fr 1fr;
    gap: clamp(32px, 6vw, 88px);
    align-items: center;
    position: relative;
  }
  @media (max-width: 900px) { .hero-grid { grid-template-columns: 1fr; } }

  .kicker {
    display: inline-flex; align-items: center; gap: 10px;
    font-size: 12px; letter-spacing: 0.22em; text-transform: uppercase;
    color: var(--accent);
    font-weight: 600;
  }
  .kicker .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }

  .hero h1 {
    margin-top: 20px;
  }
  .hero h1 em {
    font-family: var(--f-serif);
    font-style: italic;
    font-weight: 400;
    color: var(--accent);
  }
  .hero .lede {
    margin-top: 22px;
    font-size: clamp(17px, 1.4vw, 20px);
    line-height: 1.55;
    color: var(--ink-700);
    max-width: 54ch;
    text-wrap: pretty;
  }
  .hero-meta {
    margin-top: 34px;
    display: grid;
    grid-template-columns: repeat(3, auto);
    gap: 28px;
    align-items: start;
  }
  @media (max-width: 540px){ .hero-meta { grid-template-columns: 1fr 1fr; } }
  .hero-meta .item .lab {
    font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase;
    color: var(--muted); font-weight: 600;
    display: flex; align-items: center; gap: 8px;
  }
  .hero-meta .item .val {
    font-family: var(--f-display);
    font-size: 20px;
    font-weight: 600;
    margin-top: 6px;
    letter-spacing: -0.01em;
  }
  .hero-meta .item .sub { font-size: 13px; color: var(--muted); margin-top: 2px; }

  .hero-ctas { margin-top: 36px; display: flex; gap: 12px; flex-wrap: wrap; }

  /* logo stage */
  .stage {
    position: relative;
    aspect-ratio: 1/1;
    display: grid;
    place-items: center;
  }
  .stage::before {
    content: "";
    position: absolute; inset: 10%;
    border-radius: 50%;
    background: radial-gradient(circle at 30% 30%, color-mix(in oklab, var(--cream-100) 90%, white), var(--cream-200) 70%, color-mix(in oklab, var(--maroon-500) 25%, var(--cream-200)));
    box-shadow:
      0 40px 80px -30px color-mix(in oklab, var(--maroon-900) 40%, transparent),
      inset 0 0 0 1px color-mix(in oklab, var(--gold-500) 30%, transparent);
  }
  .stage .logo-img {
    position: relative;
    width: 78%;
    aspect-ratio: 1/1;
    border-radius: 50%;
    object-fit: cover;
    box-shadow:
      0 30px 60px -20px color-mix(in oklab, var(--maroon-900) 50%, transparent),
      0 2px 0 color-mix(in oklab, var(--gold-500) 40%, transparent);
  }
  /* orbit rings */
  .stage svg.orbit {
    position: absolute; inset: 0;
    width: 100%; height: 100%;
    overflow: visible;
    pointer-events: none;
  }
  .stage .orbit circle {
    fill: none;
    stroke: color-mix(in oklab, var(--gold-500) 50%, transparent);
    stroke-dasharray: 2 10;
    transform-origin: 50% 50%;
    animation: spin 60s linear infinite;
  }
  .stage .orbit circle.r2 {
    stroke: color-mix(in oklab, var(--maroon-500) 30%, transparent);
    stroke-dasharray: 1 6;
    animation: spin 90s linear infinite reverse;
  }
  @keyframes spin { to { transform: rotate(360deg); } }

  /* language welcome row */
  .lang-row {
    margin-top: 56px;
    border-top: 1px dashed var(--rule);
    border-bottom: 1px dashed var(--rule);
    padding: 18px 0;
    overflow: hidden;
    position: relative;
  }
  .lang-row .track {
    display: flex; gap: 40px;
    white-space: nowrap;
    animation: marquee 60s linear infinite;
    font-family: var(--f-serif);
    font-size: 20px;
    color: var(--ink-700);
    align-items: baseline;
  }
  .lang-row .track span em {
    font-style: normal;
    color: var(--muted);
    font-family: var(--f-sans);
    font-size: 11px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    margin-left: 10px;
  }
  .lang-row .track .sep {
    color: var(--gold);
    opacity: 0.6;
    font-family: var(--f-sans);
  }
  @keyframes marquee {
    from { transform: translateX(0); }
    to   { transform: translateX(-50%); }
  }

  /* ==================== section frame ==================== */
  section { padding: var(--pad-section) 0; position: relative; }
  .section-head {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: clamp(20px, 5vw, 80px);
    align-items: baseline;
    margin-bottom: 48px;
  }
  @media (max-width: 720px){ .section-head { grid-template-columns: 1fr; gap: 12px; } }
  .section-num {
    font-family: var(--f-display);
    font-style: italic;
    font-weight: 400;
    color: var(--accent);
    font-size: 22px;
    letter-spacing: 0;
    display: flex; align-items: center; gap: 10px;
    white-space: nowrap;
  }
  .section-num::before {
    content: "";
    width: 40px; height: 1px;
    background: var(--accent);
    display: inline-block;
  }

  /* ==================== about ==================== */
  .about { background: var(--surface); }
  .about-grid {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: clamp(40px, 7vw, 100px);
    align-items: start;
  }
  @media (max-width: 880px){ .about-grid { grid-template-columns: 1fr; } }
  .about h2 em {
    font-family: var(--f-serif); font-style: italic; color: var(--accent); font-weight: 400;
  }
  .about-body p {
    font-size: 17px;
    line-height: 1.7;
    color: var(--ink-700);
    margin-bottom: 18px;
    text-wrap: pretty;
  }
  .about-body p:first-child::first-line {
    font-weight: 600;
    color: var(--ink-900);
  }
  .about-body p.lead {
    font-family: var(--f-serif);
    font-size: clamp(22px, 2vw, 28px);
    line-height: 1.35;
    color: var(--ink-900);
    margin-bottom: 28px;
    font-style: italic;
  }
  .about .pillars {
    display: grid;
    gap: 2px;
    background: var(--rule);
    border: 1px solid var(--rule);
    border-radius: 14px;
    overflow: hidden;
  }
  .about .pillars .p {
    background: var(--surface);
    padding: 24px 26px;
    display: grid;
    grid-template-columns: 36px 1fr;
    gap: 18px;
    align-items: start;
  }
  .about .pillars .p .n {
    font-family: var(--f-display);
    font-style: italic;
    font-size: 28px;
    color: var(--accent);
    font-weight: 500;
    line-height: 1;
  }
  .about .pillars .p .t { font-family: var(--f-display); font-weight: 600; font-size: 19px; margin-bottom: 4px; }
  .about .pillars .p .d { color: var(--ink-700); font-size: 15px; line-height: 1.5; }

  /* ==================== sectors ==================== */
  .sectors h2 strong { color: var(--accent); font-weight: 600; }
  .sectors-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 1px;
    background: var(--rule);
    border: 1px solid var(--rule);
    border-radius: 16px;
    overflow: hidden;
  }
  @media (max-width: 1040px){ .sectors-grid { grid-template-columns: repeat(3, 1fr); } }
  @media (max-width: 640px){ .sectors-grid { grid-template-columns: repeat(2, 1fr); } }
  .sector {
    background: var(--bg);
    padding: 32px 24px 28px;
    min-height: 260px;
    display: flex; flex-direction: column;
    position: relative;
    transition: background .3s ease;
    cursor: default;
  }
  .sector:hover { background: var(--surface); }
  .sector .icon {
    width: 48px; height: 48px;
    display: grid; place-items: center;
    border-radius: 50%;
    background: color-mix(in oklab, var(--accent) 10%, transparent);
    color: var(--accent);
    margin-bottom: 18px;
  }
  .sector .icon svg { width: 22px; height: 22px; stroke: currentColor; fill: none; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
  .sector h3 {
    font-size: 20px;
    margin-bottom: 10px;
    line-height: 1.2;
  }
  .sector p { font-size: 14px; color: var(--ink-700); line-height: 1.5; }
  .sector .ring {
    position: absolute; top: 18px; right: 20px;
    font-family: var(--f-display); font-style: italic;
    font-size: 14px; color: var(--muted);
  }

  /* ring-colored accents */
  .sector:nth-child(1) .icon { background: color-mix(in oklab, var(--ring-blue) 12%, transparent); color: var(--ring-blue); }
  .sector:nth-child(2) .icon { background: color-mix(in oklab, var(--ring-red) 12%, transparent); color: var(--ring-red); }
  .sector:nth-child(3) .icon { background: color-mix(in oklab, var(--ring-green) 12%, transparent); color: var(--ring-green); }
  .sector:nth-child(4) .icon { background: color-mix(in oklab, var(--ring-orange) 12%, transparent); color: var(--ring-orange); }
  .sector:nth-child(5) .icon { background: color-mix(in oklab, var(--ring-gold) 15%, transparent); color: color-mix(in oklab, var(--ring-gold) 85%, black); }

  /* ==================== who ==================== */
  .who { background: var(--ink-900); color: var(--cream-50); }
  .who .section-num { color: var(--gold-300); }
  .who .section-num::before { background: var(--gold-300); }
  .who h2 em { font-family: var(--f-serif); font-style: italic; color: var(--gold-300); font-weight: 400; }
  .who-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1px;
    background: color-mix(in oklab, var(--cream-50) 10%, transparent);
    border: 1px solid color-mix(in oklab, var(--cream-50) 10%, transparent);
    border-radius: 16px;
    overflow: hidden;
    margin-top: 48px;
  }
  @media (max-width: 760px){ .who-grid { grid-template-columns: 1fr; } }
  .who-card {
    background: var(--ink-900);
    padding: 40px 36px;
  }
  .who-card .tag {
    font-size: 11px; letter-spacing: 0.22em; text-transform: uppercase;
    color: var(--gold-300); font-weight: 600; margin-bottom: 20px;
    display: flex; align-items: center; gap: 10px;
  }
  .who-card .tag::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--gold-500); }
  .who-card h3 {
    font-size: 32px; line-height: 1.15;
    margin-bottom: 16px;
    font-weight: 600;
    letter-spacing: -0.015em;
  }
  .who-card h3 em { font-family: var(--f-serif); font-weight: 400; color: var(--gold-300); }
  .who-card p { color: color-mix(in oklab, var(--cream-50) 78%, transparent); font-size: 16px; line-height: 1.6; margin-bottom: 22px; }
  .who-card ul {
    list-style: none; padding: 0; margin: 0 0 28px;
    display: grid; gap: 10px;
  }
  .who-card ul li {
    display: grid; grid-template-columns: 16px 1fr; gap: 12px;
    color: color-mix(in oklab, var(--cream-50) 85%, transparent);
    font-size: 15px;
  }
  .who-card ul li::before {
    content: ""; width: 6px; height: 6px; border-radius: 50%;
    background: var(--gold-500); margin-top: 8px;
  }
  .who-card .btn { background: var(--cream-50); color: var(--ink-900); border-color: var(--cream-50); }
  .who-card .btn:hover { background: white; }
  .who-card .btn.ghost { background: transparent; color: var(--cream-50); border-color: color-mix(in oklab, var(--cream-50) 35%, transparent); }
  .who-card .btn.ghost:hover { background: color-mix(in oklab, var(--cream-50) 8%, transparent); }

  /* ==================== logo wall ==================== */
  .wall { padding-top: 20px; padding-bottom: 60px; }
  .wall .label {
    text-align: center;
    font-size: 11px; letter-spacing: 0.22em; text-transform: uppercase;
    color: var(--muted); font-weight: 600;
    margin-bottom: 24px;
  }
  .wall-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 0;
    border-top: 1px solid var(--rule);
    border-bottom: 1px solid var(--rule);
  }
  @media (max-width: 900px){ .wall-grid { grid-template-columns: repeat(3, 1fr); } }
  .wall-cell {
    aspect-ratio: 2.3/1;
    display: grid; place-items: center;
    font-family: var(--f-display);
    font-weight: 600;
    font-size: clamp(14px, 1.2vw, 18px);
    color: color-mix(in oklab, var(--ink-900) 50%, transparent);
    border-right: 1px solid var(--rule);
    letter-spacing: -0.01em;
    text-align: center;
    padding: 0 12px;
    transition: color .2s;
  }
  .wall-cell:hover { color: var(--accent); }
  .wall-cell:nth-child(6n) { border-right: none; }
  @media (max-width: 900px){
    .wall-cell { border-right: 1px solid var(--rule); }
    .wall-cell:nth-child(6n) { border-right: 1px solid var(--rule); }
    .wall-cell:nth-child(3n) { border-right: none; }
  }

  /* ==================== impact / stats strip ==================== */
  .stats {
    background: var(--cream-100);
    padding: 56px 0;
  }
  .stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: clamp(20px, 3vw, 60px);
  }
  @media (max-width: 700px){ .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 32px; } }
  .stat .num {
    font-family: var(--f-display);
    font-size: clamp(44px, 5vw, 68px);
    line-height: 1;
    font-weight: 600;
    color: var(--accent);
    letter-spacing: -0.03em;
  }
  .stat .num .suf {
    font-size: 0.55em;
    color: var(--gold);
    margin-left: 2px;
  }
  .stat .lab {
    font-size: 13px; color: var(--ink-700);
    margin-top: 8px;
    line-height: 1.4;
    max-width: 22ch;
  }

  /* ==================== exhibitor CTA ==================== */
  .exhibit {
    background:
      linear-gradient(180deg, var(--bg) 0 50%, var(--maroon-900) 50% 100%);
    padding-top: 0;
  }
  .exhibit .card {
    background:
      radial-gradient(600px 300px at 80% 0%, color-mix(in oklab, var(--gold-500) 30%, transparent), transparent 60%),
      linear-gradient(180deg, var(--maroon-700), var(--maroon-900));
    color: var(--cream-50);
    border-radius: 24px;
    padding: clamp(40px, 5vw, 72px);
    display: grid;
    grid-template-columns: 1.3fr 1fr;
    gap: clamp(24px, 4vw, 60px);
    align-items: center;
    position: relative;
    overflow: hidden;
    box-shadow: 0 40px 80px -30px rgba(0,0,0,.4);
  }
  @media (max-width: 880px){ .exhibit .card { grid-template-columns: 1fr; } }
  .exhibit .card::before {
    content: "";
    position: absolute; inset: 1px;
    border-radius: 23px;
    border: 1px solid color-mix(in oklab, var(--gold-300) 40%, transparent);
    pointer-events: none;
  }
  .exhibit .card .tag {
    font-size: 11px; letter-spacing: 0.22em; text-transform: uppercase;
    color: var(--gold-300); font-weight: 600;
    display: flex; align-items: center; gap: 10px;
  }
  .exhibit .card .tag::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--gold-500); }
  .exhibit .card h2 { margin-top: 18px; color: var(--cream-50); }
  .exhibit .card h2 em { font-family: var(--f-serif); font-style: italic; color: var(--gold-300); font-weight: 400; }
  .exhibit .card p { margin-top: 20px; color: color-mix(in oklab, var(--cream-50) 85%, transparent); font-size: 17px; line-height: 1.6; max-width: 52ch; }
  .exhibit .card .benefits {
    display: grid; gap: 16px; margin-top: 24px;
  }
  .exhibit .card .benefits .b {
    display: grid; grid-template-columns: 28px 1fr; gap: 12px; align-items: start;
  }
  .exhibit .card .benefits .b svg { width: 22px; height: 22px; stroke: var(--gold-300); fill: none; stroke-width: 1.6; margin-top: 2px; }
  .exhibit .card .benefits .b span { font-size: 15px; color: color-mix(in oklab, var(--cream-50) 88%, transparent); }
  .exhibit .card .cta { margin-top: 32px; display: flex; gap: 12px; flex-wrap: wrap; }
  .exhibit .card .cta .btn { background: var(--cream-50); color: var(--maroon-900); border-color: var(--cream-50); }
  .exhibit .card .cta .btn:hover { background: white; }
  .exhibit .card .cta .btn.ghost { background: transparent; color: var(--cream-50); border-color: color-mix(in oklab, var(--cream-50) 35%, transparent); }

  .exhibit .side {
    display: grid; gap: 14px;
  }
  .exhibit .side .meta {
    background: color-mix(in oklab, var(--cream-50) 6%, transparent);
    border: 1px solid color-mix(in oklab, var(--cream-50) 15%, transparent);
    border-radius: 14px;
    padding: 20px 22px;
  }
  .exhibit .side .meta .lab {
    font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase;
    color: var(--gold-300); font-weight: 600;
  }
  .exhibit .side .meta .val {
    font-family: var(--f-display);
    font-weight: 600;
    font-size: 22px;
    margin-top: 4px;
  }
  .exhibit .side .meta .sub { color: color-mix(in oklab, var(--cream-50) 75%, transparent); font-size: 13px; margin-top: 4px; }

  /* ==================== FAQ ==================== */
  .faq .faq-list { display: grid; }
  .faq details {
    border-top: 1px solid var(--rule);
    padding: 26px 0;
  }
  .faq details:last-of-type { border-bottom: 1px solid var(--rule); }
  .faq summary {
    list-style: none;
    cursor: pointer;
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 20px;
    align-items: baseline;
    font-family: var(--f-display);
    font-size: clamp(20px, 2vw, 26px);
    font-weight: 500;
    letter-spacing: -0.01em;
  }
  .faq summary::-webkit-details-marker { display: none; }
  .faq summary .num {
    font-family: var(--f-serif);
    font-style: italic;
    font-size: 16px;
    color: var(--muted);
    font-weight: 400;
    min-width: 32px;
  }
  .faq summary .plus {
    width: 32px; height: 32px; border-radius: 50%;
    border: 1px solid var(--rule);
    display: grid; place-items: center;
    transition: transform .25s ease, background .2s;
    color: var(--accent);
    font-size: 18px;
    font-family: var(--f-sans);
    font-weight: 300;
  }
  .faq details[open] summary .plus { transform: rotate(45deg); background: var(--accent); color: var(--cream-50); border-color: var(--accent); }
  .faq .answer {
    padding: 16px 0 4px;
    margin-left: 52px;
    max-width: 68ch;
    color: var(--ink-700);
    font-size: 16px;
    line-height: 1.65;
  }

  /* ==================== register ==================== */
  .register {
    background: var(--surface);
  }
  .register .reg-grid {
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: clamp(32px, 6vw, 80px);
    align-items: start;
  }
  @media (max-width: 880px){ .register .reg-grid { grid-template-columns: 1fr; } }
  .register h2 em { font-family: var(--f-serif); font-style: italic; color: var(--accent); font-weight: 400; }
  .register .intro p { color: var(--ink-700); margin-top: 16px; font-size: 16px; line-height: 1.6; }
  .register .intro .fine {
    margin-top: 28px;
    padding: 20px 22px;
    border-left: 3px solid var(--gold-500);
    background: color-mix(in oklab, var(--cream-50) 60%, transparent);
    border-radius: 0 10px 10px 0;
    font-size: 14px;
    color: var(--ink-700);
  }
  .register .intro .fine strong { font-family: var(--f-display); font-weight: 600; color: var(--ink-900); display: block; margin-bottom: 4px; }

  form.reg {
    background: var(--bg);
    border: 1px solid var(--rule);
    border-radius: 18px;
    padding: clamp(24px, 3vw, 36px);
    display: grid;
    gap: 16px;
    box-shadow: 0 20px 40px -24px color-mix(in oklab, var(--ink-900) 30%, transparent);
  }
  .form-tabs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4px;
    background: var(--surface);
    padding: 4px;
    border-radius: 999px;
    margin-bottom: 8px;
  }
  .form-tabs button {
    border: 0; background: transparent;
    padding: 10px 14px;
    border-radius: 999px;
    font: 600 13px/1 var(--f-sans);
    letter-spacing: 0.01em;
    color: var(--ink-700);
    cursor: pointer;
    transition: background .15s, color .15s;
  }
  .form-tabs button.active { background: var(--ink-900); color: var(--cream-50); }

  .field { display: grid; gap: 6px; }
  .field label {
    font-size: 12px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--muted);
    font-weight: 600;
  }
  .field input, .field select, .field textarea {
    font: 400 15px/1.4 var(--f-sans);
    padding: 12px 14px;
    background: var(--bg);
    border: 1px solid var(--rule);
    border-radius: 10px;
    color: var(--ink-900);
    transition: border-color .15s, box-shadow .15s;
  }
  .field input:focus, .field select:focus, .field textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px color-mix(in oklab, var(--accent) 15%, transparent);
  }
  .field textarea { resize: vertical; min-height: 100px; }
  .field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
  @media (max-width: 520px){ .field-row { grid-template-columns: 1fr; } }

  .chips {
    display: flex; flex-wrap: wrap; gap: 8px;
    margin-top: 2px;
  }
  .chips label {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 7px 12px;
    border: 1px solid var(--rule);
    border-radius: 999px;
    font: 500 13px/1 var(--f-sans);
    color: var(--ink-700);
    cursor: pointer;
    letter-spacing: 0;
    text-transform: none;
    transition: background .15s, border-color .15s, color .15s;
  }
  .chips label input { display: none; }
  .chips label:has(input:checked) { background: var(--accent); color: var(--cream-50); border-color: var(--accent); }

  .submit-row {
    display: flex; justify-content: space-between; align-items: center; gap: 12px;
    margin-top: 8px;
  }
  .submit-row .note { font-size: 12px; color: var(--muted); }
  .thanks {
    display: none;
    padding: 18px;
    background: color-mix(in oklab, var(--olive-500) 15%, transparent);
    border: 1px solid color-mix(in oklab, var(--olive-700) 30%, transparent);
    border-radius: 10px;
    font-size: 15px;
    color: var(--ink-900);
  }
  .thanks strong { font-family: var(--f-display); }
  form.reg.sent .thanks { display: block; }
  form.reg.sent > :not(.thanks) { display: none; }

  /* ==================== footer ==================== */
  footer.site {
    background: var(--ink-900);
    color: color-mix(in oklab, var(--cream-50) 80%, transparent);
    padding: 72px 0 32px;
  }
  .foot-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr 1fr;
    gap: clamp(24px, 4vw, 56px);
  }
  @media (max-width: 820px){ .foot-grid { grid-template-columns: 1fr 1fr; } }
  @media (max-width: 520px){ .foot-grid { grid-template-columns: 1fr; } }
  footer.site .brand .bt strong { color: var(--cream-50); }
  footer.site .brand .bt span { color: color-mix(in oklab, var(--cream-50) 60%, transparent); }
  footer.site h4 {
    font-family: var(--f-sans);
    font-size: 11px;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: color-mix(in oklab, var(--cream-50) 60%, transparent);
    margin-bottom: 16px;
    font-weight: 600;
  }
  footer.site ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
  footer.site a { text-decoration: none; color: inherit; font-size: 14px; }
  footer.site a:hover { color: var(--cream-50); }
  footer.site .tag-desc { font-size: 14px; line-height: 1.6; margin-top: 14px; max-width: 34ch; }
  .foot-rule { border-top: 1px solid color-mix(in oklab, var(--cream-50) 14%, transparent); margin-top: 56px; padding-top: 20px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; font-size: 12px; color: color-mix(in oklab, var(--cream-50) 50%, transparent); }

  /* ==================== tweaks panel ==================== */
  #tweaks {
    position: fixed;
    right: 20px; bottom: 20px;
    z-index: 100;
    width: 280px;
    background: var(--bg);
    border: 1px solid var(--rule);
    border-radius: 14px;
    box-shadow: 0 30px 60px -20px rgba(0,0,0,.25);
    padding: 16px 18px;
    font: 400 13px/1.4 var(--f-sans);
    display: none;
  }
  #tweaks.open { display: block; }
  #tweaks h5 {
    margin: 0 0 12px;
    font-family: var(--f-display);
    font-weight: 600;
    font-size: 16px;
    display: flex; justify-content: space-between; align-items: center;
  }
  #tweaks h5 button {
    border: 0; background: transparent; cursor: pointer;
    font-size: 16px; color: var(--muted);
    padding: 0;
  }
  #tweaks .tw-row {
    display: grid;
    gap: 6px;
    margin-bottom: 12px;
  }
  #tweaks .tw-row > .lbl {
    font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase;
    color: var(--muted); font-weight: 600;
  }
  #tweaks .seg {
    display: grid; grid-auto-flow: column; grid-auto-columns: 1fr;
    gap: 2px; background: var(--surface);
    padding: 3px; border-radius: 8px;
  }
  #tweaks .seg button {
    border: 0; background: transparent;
    padding: 7px 8px;
    border-radius: 6px;
    font: 600 12px/1 var(--f-sans);
    color: var(--ink-700);
    cursor: pointer;
  }
  #tweaks .seg button.on { background: var(--ink-900); color: var(--cream-50); }
  #tweaks .tw-toggle {
    display: flex; align-items: center; justify-content: space-between;
    gap: 10px;
    padding: 6px 0;
    font-size: 13px;
  }
  #tweaks .tw-toggle input { accent-color: var(--accent); }

  /* ==================== utilities ==================== */
  .reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .7s ease; }
  .reveal.in { opacity: 1; transform: none; }

  ::selection { background: color-mix(in oklab, var(--gold-500) 50%, transparent); color: var(--ink-900); }

  /* ==================== added by scripts/extract-site.mjs ==================== */
  .reg-error {
    margin: 14px 0 0;
    padding: 12px 14px;
    border-radius: 10px;
    border: 1px solid color-mix(in oklab, var(--ring-red) 45%, transparent);
    background: color-mix(in oklab, var(--ring-red) 10%, transparent);
    color: var(--maroon-900);
    font-size: 14px;
    line-height: 1.5;
  }
  .reg-error[hidden] { display: none; }