/* ============================================================================
   Demo Lab (/demo, /en/demo) — página pública de seleção de cenário.
   Reaproveita os tokens/componentes globais de vox.css (--bg, --card, --chip,
   --border, --text, --text-dim, --text-faint, --accent*, .header, .brand,
   .langtoggle, .themetoggle) — só o que é específico desta página vive aqui:
   intro e a lista em acordeão (design_handoff_demo_lab/README.md). A cor por
   cenário (vinda do banco, ver app/demo_lab.py:build_cards) é aplicada via
   custom properties inline no <li>
   (--accent/--ink/--avatar-bg/--badge-bg/--block-bg/--expanded-bg/--expanded-border).
   Abrir/fechar é static/js/demo-lab.js (classe .is-open no <li> + atributo
   `hidden` no painel — mesmo padrão de disclosure de static/js/builder.js).
   ============================================================================ */

.demolab {
  padding-bottom: clamp(48px, 7vw, 80px);
  --ink-on-fill: #0A1220;
}
[data-theme="light"] .demolab { --ink-on-fill: #FFFFFF; }

/* ── Header (elementos específicos desta página) ─────────────────────── */
.demolab__tagline { font-size: 13.5px; color: var(--text-dim); white-space: nowrap; }
.demolab__header-spacer { flex: 1 1 auto; }
.demolab__backlink {
  font-size: 14px; font-weight: 500; color: var(--text-dim);
  text-decoration: none; padding: 6px 0; transition: color .18s;
}
.demolab__backlink:hover { color: var(--accent-text); }

/* ── Intro ────────────────────────────────────────────────────────────── */
.demolab__intro {
  max-width: 800px;
  padding: clamp(18px, 3vw, 28px) 0 clamp(26px, 3vw, 36px);
}
.demolab__h1 {
  font-family: 'Manrope', var(--font-display);
  font-weight: 800; font-size: clamp(31px, 5vw, 48px); line-height: 1.06;
  letter-spacing: -.04em; margin: 0 0 18px; color: var(--text);
  text-wrap: balance;
}
.demolab__sub {
  font-size: 18px; line-height: 1.6; color: var(--text-dim);
  max-width: 620px; text-wrap: pretty; margin: 0 0 26px;
}
.demolab__metrics {
  display: flex; align-items: center; flex-wrap: wrap; gap: 8px 12px;
  font-size: 14.5px; font-weight: 600; color: var(--text);
}
.demolab__metric-sep { color: var(--border-strong); font-weight: 400; }
.demolab__metric--accent { color: var(--accent-text); }

/* ── Lista em acordeão ────────────────────────────────────────────────── */
.demolab__list {
  list-style: none; margin: 0; padding: 0;
  display: flex; flex-direction: column; gap: 10px;
  max-width: 720px;
}
.demolab__empty { list-style: none; text-align: center; padding: 60px 20px; color: var(--text-dim); font-size: 15px; }

/* ── Item / cabeçalho (sempre visível: ícone, nome, tag) ─────────────────── */
.demolab__item {
  border: 1px solid var(--border); border-radius: 16px;
  background: var(--card); overflow: hidden;
  transition: background-color .18s, border-color .18s;
}
.demolab__item.is-open { background: var(--expanded-bg); border-color: var(--expanded-border); }

.demolab__head {
  display: flex; align-items: center; gap: 12px; width: 100%;
  padding: 13px 14px; background: transparent; border: 0; margin: 0;
  font: inherit; text-align: left; cursor: pointer;
}
.demolab__head:focus-visible { outline: 2px solid var(--accent); outline-offset: -2px; }

.demolab__avatar {
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
  width: 36px; height: 36px; border-radius: 11px;
  font-family: 'Manrope', var(--font-display); font-weight: 800; font-size: 16px;
  color: var(--ink); background: var(--avatar-bg);
  border: 1px solid color-mix(in srgb, var(--ink) 40%, transparent);
}
.demolab__headtext { display: flex; align-items: baseline; gap: 10px; flex: 1 1 auto; min-width: 0; }
.demolab__index { font-family: var(--font-mono); font-size: 11px; letter-spacing: .06em; color: var(--text-faint); flex-shrink: 0; }
.demolab__name {
  font-family: 'Manrope', var(--font-display); font-weight: 800;
  font-size: 17px; letter-spacing: -.02em; color: var(--text);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.demolab__category {
  flex-shrink: 0;
  font-size: 11px; font-weight: 700; letter-spacing: .05em; text-transform: uppercase;
  color: var(--ink); background: var(--badge-bg); border: 1px solid color-mix(in srgb, var(--ink) 40%, transparent);
  padding: 5px 10px; border-radius: 999px;
}
.demolab__chevron {
  flex-shrink: 0; font-size: 15px; color: var(--text-faint);
  transition: transform .2s;
}
.demolab__item.is-open .demolab__chevron { transform: rotate(180deg); }

/* ── Painel expandido ─────────────────────────────────────────────────── */
.demolab__panel { padding: 2px 14px 16px; }
.demolab__panel:not([hidden]).demolab__panel--enter { animation: cardIn .16s ease; }
@keyframes cardIn {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}

.demolab__section { margin-bottom: 13px; }
.demolab__label {
  font-size: 10.5px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase;
  color: var(--text-faint); margin-bottom: 6px;
}
.demolab__text { font-size: 14px; line-height: 1.5; color: var(--text-dim); text-wrap: pretty; }
.demolab__text--strong { color: var(--text); }

.demolab__test {
  padding: 12px 14px; border-radius: 11px;
  background: var(--block-bg); border-left: 2px solid var(--ink);
  color: var(--ink); margin-bottom: 14px;
}
.demolab__test-label {
  font-size: 10.5px; font-weight: 700; text-transform: uppercase; letter-spacing: .1em;
  margin-bottom: 6px;
}
.demolab__test-text { font-size: 14px; line-height: 1.5; color: var(--text); text-wrap: pretty; }

.demolab__cta {
  display: block; width: 100%; text-align: center; text-decoration: none;
  font-size: 14.5px; font-weight: 700; padding: 13px 20px; border-radius: 999px;
  background: var(--ink); color: var(--ink-on-fill);
  box-shadow: 0 12px 28px -16px var(--ink);
}

/* ── Disclaimer ───────────────────────────────────────────────────────── */
.demolab__disclaimer {
  margin-top: 22px; font-size: 13px; line-height: 1.6; color: var(--text-faint);
  max-width: 620px;
}