/* ---------- Nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in oklab, var(--bg) 78%, transparent);
  backdrop-filter: saturate(140%) blur(14px);
  -webkit-backdrop-filter: saturate(140%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease;
}
.nav.is-scrolled { border-bottom-color: var(--hairline); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 66px; gap: 24px; }
.brand {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-display);
  font-weight: 600; font-size: 17px;
  letter-spacing: -0.015em;
  color: var(--ink);
}
.brand-mark {
  width: 24px; height: 24px;
  color: var(--accent);
  flex-shrink: 0;
}
.nav-menu { display: flex; gap: 26px; align-items: center; }
.nav-menu a {
  position: relative;
  padding: 6px 0;
  color: var(--muted);
  font-size: 13.5px;
  letter-spacing: -0.005em;
  transition: color 0.15s;
}
.nav-menu a:hover { color: var(--fg); }
.nav-menu a.active { color: var(--fg); }
.nav-menu a.active::after {
  content: "";
  position: absolute; left: 0; right: 0; bottom: 0;
  height: 1.5px;
  background: var(--accent);
}
.nav-meta {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--subtle);
}
.nav-meta .dot { display: inline-block; width: 6px; height: 6px; border-radius: 50%; background: var(--success); margin-right: 8px; vertical-align: middle; }
.nav-cta {
  display: inline-flex; align-items: center; gap: 6px;
  height: 36px; padding: 0 14px;
  background: var(--ink); color: var(--on-ink);
  font-size: 13.5px; font-weight: 500;
  letter-spacing: -0.005em;
  border-radius: 999px;
  transition: transform 0.15s ease, background 0.15s ease;
}
.nav-cta:hover { background: var(--ink-soft); transform: translateY(-1px); }
.nav-cta svg { width: 12px; height: 12px; }

/* ---------- Mobile menu ---------- */
.nav-toggle { display: none; }
.mobile-menu { display: none; }
@media (max-width: 880px) {
  .nav-menu { display: none; }
  .nav-meta { display: none; }
  .nav-cta  { display: none; }

  /* No-JS: links stacked and visible. With JS: collapsed behind the toggle. */
  .mobile-menu {
    display: flex;
    flex-direction: column;
    padding: 4px var(--gutter) 16px;
    border-top: 1px solid var(--hairline);
    background: color-mix(in oklab, var(--bg) 92%, transparent);
  }
  .mobile-menu a {
    padding: 13px 0;
    font-size: 16px;
    color: var(--fg);
    border-bottom: 1px solid var(--hairline);
  }
  .mobile-menu a:last-child { border-bottom: 0; }
  .mobile-menu a.active { color: var(--accent-ink); }
  .mobile-menu-cta { color: var(--accent-ink); font-weight: 500; }

  .js .nav-toggle {
    display: inline-flex; align-items: center; justify-content: center;
    width: 44px; height: 44px;
    margin-right: -10px;
    background: transparent; border: 0; cursor: pointer;
    color: var(--ink);
  }
  .nav-toggle svg { width: 24px; height: 24px; }

  .js .mobile-menu { display: none; }
  .js .mobile-menu.open { display: flex; }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  height: 48px; padding: 0 22px;
  border-radius: 999px;
  font-size: 15px; font-weight: 500;
  letter-spacing: -0.005em;
  transition: transform 0.15s ease, background 0.15s ease, box-shadow 0.15s ease;
}
.btn-primary { background: var(--ink); color: var(--on-ink); box-shadow: 0 1px 0 oklch(0% 0 0 / 0.12), 0 8px 22px oklch(0% 0 0 / 0.08); }
.btn-primary:hover { transform: translateY(-1px); background: var(--ink-soft); }
.btn-ghost { color: var(--fg); background: transparent; box-shadow: inset 0 0 0 1px var(--border); }
.btn-ghost:hover { background: var(--surface); box-shadow: inset 0 0 0 1px var(--border-strong); }
.btn svg { width: 14px; height: 14px; }

/* ---------- Spec card ---------- */
.spec-card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: clamp(22px, 2.4vw, 32px) clamp(22px, 2.4vw, 32px) clamp(20px, 2.2vw, 28px);
  box-shadow: 0 1px 0 var(--hairline);
}
.spec-card::before {
  content: "";
  position: absolute;
  left: -1px; top: -1px; bottom: -1px;
  width: 3px;
  background: var(--accent);
  border-radius: 4px 0 0 4px;
}
.spec-card-head {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px;
  padding-bottom: clamp(14px, 1.4vw, 18px);
  margin-bottom: clamp(14px, 1.4vw, 20px);
  border-bottom: 1px solid var(--hairline);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}
.spec-card-head .label { color: var(--ink); letter-spacing: 0.14em; }
.spec-card-head .ref { color: var(--subtle); font-size: 10.5px; }
.spec-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(18px, 1.8vw, 24px);
}
.spec-item {
  display: flex; flex-direction: column;
  gap: 4px;
}
.spec-item .k {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--subtle);
}
.spec-item .v {
  font-family: var(--font-body);
  font-size: var(--text-spec-value);
  line-height: 1.35;
  color: var(--fg);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.005em;
}
.spec-item .v .accent { color: var(--accent-ink); font-weight: 500; }
.spec-item .v strong { color: var(--ink); font-weight: 500; }

/* ---------- FAQ ---------- */
.faq-list { border-top: 1px solid var(--border); }
.faq-item { border-bottom: 1px solid var(--border); }
.faq-q {
  display: flex; align-items: center; justify-content: space-between;
  width: 100%;
  padding: 22px 0;
  background: transparent; border: 0; cursor: pointer;
  text-align: left;
  font-family: var(--font-display);
  font-size: var(--text-faq-q);
  line-height: 1.3;
  letter-spacing: -0.015em;
  font-weight: 500;
  color: var(--ink);
  transition: color 0.15s;
}
.faq-q:hover { color: var(--accent-ink); }
.faq-q .icon {
  width: 16px; height: 16px;
  flex-shrink: 0;
  color: var(--muted);
  transition: transform 0.2s ease, color 0.15s;
}
.faq-item.open .faq-q .icon { transform: rotate(45deg); color: var(--accent-ink); }
.faq-a {
  display: grid;
  grid-template-rows: 0fr;
  overflow: hidden;
  transition: grid-template-rows 0.3s ease;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.6;
}
.faq-a-inner { min-height: 0; padding: 0 0 22px; max-width: 60ch; }
.faq-item.open .faq-a { grid-template-rows: 1fr; }
@media (prefers-reduced-motion: reduce) { .faq-a { transition: none; } }

/* ---------- Reveal ---------- */
/* Gated behind .js: no-JS users see content at full opacity (progressive enhancement). */
.js .reveal { opacity: 0; transform: translateY(14px); transition: opacity 0.7s ease, transform 0.7s cubic-bezier(0.2, 0.8, 0.2, 1); }
.js .reveal.in { opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce) {
  .js .reveal { opacity: 1; transform: none; transition: none; }
  .foot-greet-track { animation: none !important; }
}

/* ---------- Consent banner ---------- */
.consent[hidden] { display: none; }
.consent {
  position: fixed;
  left: 16px; right: 16px; bottom: 16px;
  z-index: 80;
  max-width: 440px;
  margin-left: auto;
  display: flex; flex-direction: column; gap: 14px;
  padding: 18px 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: 0 12px 44px oklch(0% 0 0 / 0.16);
}
.consent-text { font-size: 14px; line-height: 1.5; color: var(--fg); }
.consent-text a { color: var(--accent-ink); border-bottom: 1px solid var(--accent); }
.consent-text a:hover { color: var(--ink); }
.consent-actions { display: flex; gap: 10px; justify-content: flex-end; }
.btn-consent {
  height: 44px; padding: 0 20px;
  border-radius: 999px; cursor: pointer;
  font-family: var(--font-body); font-size: 14px; font-weight: 500;
  border: 0;
  transition: background 0.15s ease, box-shadow 0.15s ease;
}
/* Equal visual weight — no nudge toward Accept (GDPR / EDPB guidance). */
.btn-consent--yes,
.btn-consent--no {
  background: transparent;
  color: var(--fg);
  box-shadow: inset 0 0 0 1px var(--border);
}
.btn-consent--yes:hover,
.btn-consent--no:hover {
  background: var(--surface-2);
  box-shadow: inset 0 0 0 1px var(--border-strong);
}