/* OpenBridge landing: page CSS. Tokens only; values live in theme.css. */

/* ── Header ── */
.brand { display: inline-flex; align-items: center; gap: 10px; }
.brand-mark { width: 30px; height: 19px; color: var(--ink); }
.header-actions { display: flex; align-items: center; gap: 8px; }
.header-signin { display: inline-flex; align-items: center; min-height: 44px; padding-inline: 12px; font-size: var(--fs-small); font-weight: 600; text-decoration: none; color: var(--muted-strong); }
.header-signin:hover { color: var(--ink); }
.button-sm { min-height: 44px; padding: 10px 18px; font-size: var(--fs-small); white-space: nowrap; }
.header-signin { white-space: nowrap; }
.nav-mobile { display: flex; gap: 4px; width: var(--shell); margin-inline: auto; overflow-x: auto; scrollbar-width: none; }
.nav-mobile a { flex: none; display: inline-flex; align-items: center; min-height: 44px; padding-inline: 12px; font-size: var(--fs-small); font-weight: 600; color: var(--muted-strong); text-decoration: none; }
.nav-mobile a:first-child { padding-left: 0; }
@media (min-width: 900px) { .nav-mobile { display: none; } }
@media (max-width: 440px) { .header-inner { gap: 8px; } .header-signin { padding-inline: 8px; } .button-sm { padding-inline: 14px; } .brand span { font-size: 1.1rem; } .brand-mark { width: 26px; } }

/* ── Hero ── */
.ob-hero { min-height: 0; padding-block: clamp(28px, 6vw, 88px) 0; }
.accent-word { color: var(--accent-text); }
.band-ink .accent-word { color: var(--accent); }
.hero-facts { display: flex; flex-wrap: wrap; gap: 6px 20px; color: var(--muted); }
@media (min-width: 560px) { .hero-facts span + span::before { content: ""; display: inline-block; width: 4px; height: 4px; margin-right: 20px; border-radius: 50%; background: var(--accent); vertical-align: middle; } }

/* product preview: the first of two bordered panels */
.preview { margin: 0; }
.preview-window { border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); box-shadow: var(--shadow-soft); overflow: hidden; font-size: 0.8125rem; line-height: 1.45; }
.preview-bar { display: flex; align-items: center; gap: 6px; padding: 10px 14px; border-bottom: 1px solid var(--line); background: var(--surface-2); }
.preview-bar span { width: 9px; height: 9px; border-radius: 50%; background: var(--line-strong); }
.preview-bar b { margin-left: 10px; font-weight: 500; font-size: var(--fs-micro); color: var(--muted); }
.preview-body { display: grid; grid-template-columns: minmax(0, 1fr); }
.preview-side { display: none; padding: 16px 14px; border-right: 1px solid var(--line); background: var(--bg); }
.preview-side ul { margin-top: 8px; display: grid; gap: 2px; }
.preview-side li { padding: 7px 10px; border-radius: var(--radius-sm); color: var(--muted-strong); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.preview-side li.is-active { background: var(--accent-soft); color: var(--ink); font-weight: 600; }
.preview-new { margin-bottom: 16px; padding: 8px 10px; border-radius: var(--radius-sm); background: var(--accent-fill); color: var(--accent-on-fill); font-weight: 700; }
.preview-meter { margin-top: 20px; display: grid; gap: 8px; }
.meter { display: block; height: 6px; border-radius: 3px; background: var(--surface-2); overflow: hidden; }
.meter i { display: block; width: 38%; height: 100%; background: var(--accent); }
.preview-chat { display: grid; gap: 14px; align-content: start; padding: 16px; }
.preview-picker { display: grid; gap: 8px; }
.preview-picker > span { font-size: var(--fs-micro); color: var(--muted); }
.preview-picker ul { display: flex; flex-wrap: wrap; gap: 6px; }
.preview-picker li { padding: 5px 10px; border: 1px solid var(--line-strong); border-radius: 999px; color: var(--muted-strong); font-weight: 600; }
.preview-picker li.is-active { border-color: var(--accent); background: var(--accent-fill); color: var(--accent-on-fill); }
.preview-msg { max-width: 92%; padding: 10px 12px; border-radius: var(--radius-sm); }
.preview-msg.user { justify-self: end; background: var(--surface-2); color: var(--ink); }
.preview-msg.bot { display: grid; gap: 8px; width: 92%; border: 1px solid var(--line); }
.preview-who { font-size: var(--fs-micro); color: var(--accent-text); }
.skel { display: block; width: var(--w); height: 8px; border-radius: 4px; background: var(--surface-2); }
.preview-input { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 8px 8px 8px 12px; border: 1px solid var(--line-strong); border-radius: var(--radius-sm); color: var(--muted); }
.preview-input b { padding: 5px 12px; border-radius: var(--radius-sm); background: var(--ink); color: var(--bg); font-weight: 600; }
@media (min-width: 560px) {
  .preview-body { grid-template-columns: 11.5rem minmax(0, 1fr); min-height: 380px; }
  .preview-side { display: block; }
}
@media (min-width: 900px) and (max-width: 1199px) { .preview-body { grid-template-columns: minmax(0, 1fr); } .preview-side { display: none; } }

/* signature: the bridge span across the full width */
.span-line { margin-top: clamp(40px, 6vw, 80px); }
.span-line svg { width: 100%; height: clamp(44px, 6vw, 90px); }
.span-names { display: flex; justify-content: space-around; gap: 8px; width: var(--shell); margin: 12px auto 0; font-size: var(--fs-micro); letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); }
.span-names li { position: relative; padding-top: 10px; }
.span-names li::before { content: ""; position: absolute; top: 0; left: 50%; width: 1px; height: 6px; background: var(--accent); }

/* ── Models ── */
.model-list > li { display: grid; gap: 6px; padding-block: 22px; border-top: 1px solid var(--line-strong); }
.model-list > li:last-child { border-bottom: 1px solid var(--line-strong); }
.model-head { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; }
.model-id { color: var(--muted); }
.status { flex: none; display: inline-flex; align-items: center; gap: 8px; font-size: var(--fs-micro); text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted); }
.status::before { content: ""; width: 8px; height: 8px; border-radius: 50%; border: 1.5px solid currentColor; }
.status.is-on { color: var(--ok); }
.status.is-on::before { background: currentColor; }

/* ── Limits (ink band) ── */
.limits-kv > div { display: grid; gap: 4px 24px; padding-block: 18px; border-top: 1px solid color-mix(in srgb, var(--on-ink) 22%, transparent); }
.limits-kv > div:last-child { border-bottom: 1px solid color-mix(in srgb, var(--on-ink) 22%, transparent); }
.limits-kv dt { font-size: var(--fs-small); color: var(--accent); text-transform: uppercase; letter-spacing: 0.06em; }
.limits-kv dd { margin: 0; color: var(--on-ink); }
@media (min-width: 640px) { .limits-kv > div { grid-template-columns: 9rem 1fr; } }

/* ── Pricing: plan columns under rules, the middle one on a colour field ── */
.plans { display: grid; gap: 12px; }
.plan { display: grid; align-content: start; gap: 20px; padding: 24px 0 8px; border-top: 2px solid var(--ink); }
.plan.is-featured { padding: 24px clamp(20px, 2.4vw, 32px) 28px; border-top-color: var(--accent); border-radius: 0 0 var(--radius) var(--radius); background: var(--field-2); color: var(--field-2-ink); }
.plan-head { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; }
.plan-tag { color: var(--accent-text); }
.plan-price { display: flex; align-items: baseline; gap: 8px; }
.plan-price .num { font-family: var(--font-mono); font-weight: 600; font-size: clamp(2.5rem, 1.8rem + 2.4vw, 3.75rem); letter-spacing: -0.05em; }
.plan-kv > div { display: flex; justify-content: space-between; gap: 16px; padding-block: 10px; border-top: 1px solid var(--line); font-size: var(--fs-small); }
.plan.is-featured .plan-kv > div { border-top-color: var(--line-strong); }
.plan-kv dt { color: var(--muted-strong); }
.plan-kv dd { margin: 0; text-align: right; font-weight: 600; }
.plan .button { justify-self: stretch; }
.pricing-notes { margin-top: clamp(28px, 4vw, 48px); max-width: 72ch; }
@media (min-width: 900px) {
  .plans { grid-template-columns: repeat(var(--plans, 3), minmax(0, 1fr)); gap: clamp(24px, 3vw, 48px); align-items: start; }
  .plan:not(.is-featured) { padding-top: 32px; }
  .plan.is-featured { padding-top: 32px; }
}

/* ── Footer ── */
.footer-top { display: grid; gap: 40px; }
.footer-brand { display: grid; gap: 8px; align-content: start; }
.footer-note { margin-top: 48px; padding-top: 20px; border-top: 1px solid var(--line-strong); max-width: 90ch; }
@media (min-width: 900px) { .footer-top { grid-template-columns: minmax(0, 1fr) minmax(0, 2fr); } }

/* ── Legal pages ── */
.legal-hero { border-bottom: 1px solid var(--line); }
.legal-body { display: grid; gap: clamp(28px, 4vw, 56px); }
.legal-body h2 { font-family: var(--font-display); font-size: var(--fs-h3); font-weight: 650; letter-spacing: -0.01em; line-height: 1.25; margin-top: 2rem; }
.legal-body h2:first-child { margin-top: 0; }
.legal-body p, .legal-body ul { margin-top: 0.75rem; }
.legal-body ul { padding-left: 1.2em; list-style: disc; }
.legal-body li + li { margin-top: 0.35rem; }
.legal-toc { display: grid; gap: 4px; align-content: start; font-size: var(--fs-small); }
.legal-toc a { color: var(--muted-strong); text-decoration: none; padding-block: 6px; }
.legal-toc a:hover { color: var(--ink); text-decoration: underline; }
.legal-toc a[aria-current="page"] { color: var(--accent-text); font-weight: 700; }
.placeholder { padding: 0 0.3em; border-radius: 4px; background: var(--accent-soft); color: var(--ink); font-family: var(--font-mono); font-size: 0.9em; }
@media (min-width: 900px) { .legal-body { grid-template-columns: 14rem minmax(0, 1fr); } .legal-toc { position: sticky; top: calc(var(--header-height) + 24px); } }

@media print {
  .nav-mobile, .span-line, .preview, .header-signin { display: none !important; }
  .plan.is-featured { background: none; }
}