/* ============================================================
   ZoneLab — site-wide stylesheet
   ============================================================ */
@import url('tokens.css');

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font-body);
  font-size: var(--t-base);
  line-height: var(--lh-normal);
  color: var(--fg);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
a { color: inherit; }

/* ---------- Layout containers ---------- */
.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 28px;
}
.container--narrow {
  max-width: 760px;
}

/* ---------- Top nav ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(246, 243, 238, 0.82);
  border-bottom: 1px solid var(--ink-100);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  gap: 24px;
}
.nav__brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--ink-900);
}
.nav__brand img {
  width: 28px; height: 28px;
  border-radius: 5px;
  display: block;
}
.nav__brand .wordmark {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 22px;
  letter-spacing: -0.02em;
  line-height: 1;
}
.nav__brand .wordmark .lab { color: var(--coral-500); }
.nav__links {
  display: flex;
  align-items: center;
  gap: 6px;
}
.nav__links a {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 14px;
  text-decoration: none;
  color: var(--ink-700);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  transition: background var(--dur-base) var(--ease-out), color var(--dur-base) var(--ease-out);
}
.nav__links a:hover {
  background: var(--bone-100);
  color: var(--ink-900);
}
.nav__links a.is-active {
  color: var(--ink-900);
  background: var(--bone-100);
}
.nav__cta {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 13px;
  padding: 9px 14px;
  background: var(--ink-900);
  color: var(--white);
  border: 1px solid var(--ink-900);
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: background var(--dur-base) var(--ease-out);
}
.nav__cta:hover { background: var(--ink-800); }

/* ---------- Buttons ---------- */
.btn {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 14px;
  padding: 11px 18px;
  background: var(--ink-900);
  color: var(--white);
  border: 1px solid var(--ink-900);
  border-radius: var(--radius-sm);
  cursor: pointer;
  text-decoration: none;
  display: inline-flex; align-items: center; gap: 8px;
  line-height: 1.2;
  transition: background var(--dur-base) var(--ease-out), transform var(--dur-quick) var(--ease-out);
}
.btn:hover { background: var(--ink-800); }
.btn:active { transform: scale(0.98); }
.btn--coral {
  background: var(--coral-500);
  border-color: var(--coral-500);
  box-shadow: var(--shadow-coral);
}
.btn--coral:hover { background: var(--coral-600); border-color: var(--coral-600); }
.btn--bone {
  background: var(--white);
  color: var(--ink-900);
  border-color: var(--ink-200);
  box-shadow: var(--shadow-1);
}
.btn--bone:hover { background: var(--bone-50); border-color: var(--ink-300); }
.btn--ghost {
  background: transparent;
  color: var(--ink-900);
  border-color: transparent;
}
.btn--ghost:hover { background: var(--bone-100); }
.btn--lg { font-size: 15px; padding: 14px 22px; }

/* ---------- App Store CTA (original, ZoneLab-branded) ---------- */
.appstore-cta {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: var(--ink-950);
  color: var(--white);
  text-decoration: none;
  padding: 12px 20px 12px 18px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--ink-950);
  transition: background var(--dur-base) var(--ease-out), transform var(--dur-quick) var(--ease-out);
}
.appstore-cta:hover { background: #2A2520; }
.appstore-cta:active { transform: scale(0.98); }
.appstore-cta__icon {
  width: 26px; height: 26px;
  display: block;
}
.appstore-cta__text {
  display: flex;
  flex-direction: column;
  gap: 1px;
  line-height: 1;
}
.appstore-cta__text small {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: var(--tr-stamp);
  text-transform: uppercase;
  color: rgba(246, 243, 238, 0.65);
  font-weight: 500;
}
.appstore-cta__text strong {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 19px;
  letter-spacing: -0.005em;
  line-height: 1.1;
}

/* ---------- Type helpers ---------- */
.eyebrow {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: var(--tr-stamp);
  color: var(--fg-muted);
  margin: 0;
}
.h0 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(56px, 8vw, 92px);
  line-height: 0.98;
  letter-spacing: -0.025em;
  color: var(--fg);
  margin: 0;
}
.h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(38px, 5vw, 56px);
  line-height: 1.02;
  letter-spacing: -0.02em;
  color: var(--fg);
  margin: 0;
}
.h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 36px;
  line-height: 1.08;
  letter-spacing: -0.015em;
  color: var(--fg);
  margin: 0;
}
.h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 24px;
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--fg);
  margin: 0;
}
.motto {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 20px;
  color: var(--coral-500);
  letter-spacing: -0.005em;
}
.lead {
  font-family: var(--font-body);
  font-size: 18px;
  line-height: 1.5;
  color: var(--fg-muted);
  max-width: 56ch;
}
.mono { font-family: var(--font-mono); font-feature-settings: "tnum"; }

/* ---------- Footer ---------- */
.footer {
  border-top: 1px solid var(--ink-100);
  background: var(--bone-100);
  padding: 56px 0 36px;
  margin-top: 80px;
}
.footer__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 36px;
}
.footer__brand {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.footer__brand img {
  width: 36px; height: 36px;
  border-radius: 6px;
}
.footer__brand p {
  font-size: 13px;
  color: var(--fg-muted);
  line-height: 1.55;
  max-width: 32ch;
  margin: 0;
}
.footer__col h4 {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 11px;
  letter-spacing: var(--tr-stamp);
  text-transform: uppercase;
  color: var(--fg-muted);
  margin: 0 0 14px;
}
.footer__col ul {
  list-style: none; padding: 0; margin: 0;
  display: flex; flex-direction: column; gap: 8px;
}
.footer__col a {
  font-size: 14px;
  color: var(--ink-800);
  text-decoration: none;
  transition: color var(--dur-base) var(--ease-out);
}
.footer__col a:hover { color: var(--coral-500); }
.footer__legal {
  margin-top: 48px;
  padding-top: 22px;
  border-top: 1px solid var(--ink-200);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: var(--fg-subtle);
  gap: 16px;
  flex-wrap: wrap;
}

/* ---------- Inner-page hero ---------- */
.page-hero {
  padding: 72px 0 36px;
  border-bottom: 1px solid var(--ink-100);
}
.page-hero .eyebrow { margin-bottom: 14px; }
.page-hero h1 { margin-bottom: 14px; }
.page-hero .lead { margin: 0; }

/* ---------- Card ---------- */
.card {
  background: var(--white);
  border: 1px solid var(--ink-200);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-1);
  padding: 24px;
}

/* ---------- Forms ---------- */
.field { display: flex; flex-direction: column; gap: 8px; margin-bottom: 18px; }
.field label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: var(--tr-stamp);
  text-transform: uppercase;
  color: var(--fg-muted);
  font-weight: 500;
}
.field input,
.field textarea,
.field select {
  font-family: var(--font-body);
  font-size: 15px;
  padding: 11px 14px;
  background: var(--white);
  border: 1px solid var(--ink-200);
  border-radius: var(--radius-sm);
  color: var(--ink-900);
  transition: border-color var(--dur-base) var(--ease-out), box-shadow var(--dur-base) var(--ease-out);
}
.field input:focus,
.field textarea:focus,
.field select:focus {
  outline: none;
  border-color: var(--coral-500);
  box-shadow: 0 0 0 3px rgba(232,80,58,0.15);
}
.field textarea { resize: vertical; min-height: 140px; line-height: 1.5; }
.field--row { flex-direction: row; gap: 14px; }
.field--row > * { flex: 1; }

/* ---------- Mobile ---------- */
@media (max-width: 800px) {
  .nav__links a { padding: 8px 10px; }
  .nav__links .nav-link--secondary { display: none; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 540px) {
  .container { padding: 0 20px; }
  .footer__grid { grid-template-columns: 1fr; gap: 28px; }
  .nav__links { gap: 0; }
}