/* Voice Trail · Shared Design System
   Loaded on every page. Defines tokens, typography, nav, footer, buttons,
   reveal animation, and container width. Page-specific styles (hero, scenes,
   compare, pricing, etc.) are inline on each page. */

* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --bg: #07080F;
  --bg-deep: #04050A;
  --surface: #101222;
  --surface-2: #171A2E;
  --surface-3: #1F2340;
  --text: #F5F7FA;
  --text-2: #B3BACB;
  --text-3: #7A8196;
  --text-muted: #4A516A;
  --teal: #15C2DB;
  --teal-deep: #0B8FA3;
  --teal-dark: #065C6B;
  --lavender: #9087D5;
  --amber: #E8B547;
  --coral: #E8655C;
  --sage: #7FC09F;
  --border: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(255, 255, 255, 0.16);
  --shadow-glow: rgba(21, 194, 219, 0.35);
  --accent-grad: linear-gradient(135deg, #15C2DB 0%, #0B8FA3 60%, #065C6B 100%);
  --warm-grad: linear-gradient(135deg, #15C2DB 0%, #9087D5 100%);
}

html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  letter-spacing: -0.005em;
}

a { color: var(--teal); }

/* Consistent container width across every section on every page */
.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
  width: 100%;
}

/* Reveal on scroll */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.9s cubic-bezier(0.16, 1, 0.3, 1), transform 0.9s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal.d1 { transition-delay: 0.1s; }
.reveal.d2 { transition-delay: 0.2s; }
.reveal.d3 { transition-delay: 0.3s; }
.reveal.d4 { transition-delay: 0.4s; }

/* ─── Nav (identical on every page) ─────────────────────────────── */

.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(7, 8, 15, 0.7);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s ease, background 0.3s ease;
}
.nav.scrolled {
  border-bottom-color: var(--border);
  background: rgba(7, 8, 15, 0.92);
}
.nav-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text);
  font-weight: 700;
  font-size: 1.2rem;
  letter-spacing: -0.02em;
}
.logo-mark {
  width: 30px;
  height: 30px;
  border-radius: 8px;
  background: var(--accent-grad);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px var(--shadow-glow);
  flex-shrink: 0;
}
.logo-mark svg { width: 16px; height: 16px; }
.logo .trail { color: var(--teal); }
.nav-links {
  display: flex;
  gap: 4px;
  list-style: none;
}
.nav-links a {
  text-decoration: none;
  color: var(--text-2);
  font-size: 0.9rem;
  font-weight: 500;
  padding: 8px 14px;
  border-radius: 8px;
  transition: color 0.2s, background 0.2s;
}
.nav-links a:hover { color: var(--text); background: rgba(255,255,255,0.04); }
.nav-links a.active { color: var(--teal); }
.nav-cta {
  background: var(--accent-grad);
  color: white;
  padding: 10px 18px;
  border-radius: 10px;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9rem;
  box-shadow: 0 4px 16px var(--shadow-glow);
  transition: transform 0.2s, box-shadow 0.2s;
  white-space: nowrap;
}
.nav-cta:hover { transform: translateY(-1px); box-shadow: 0 6px 24px var(--shadow-glow); }

@media (max-width: 720px) {
  .nav-links { display: none; }
}

/* ─── Buttons ───────────────────────────────────────────────────── */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 24px;
  border-radius: 12px;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.2s, background 0.2s;
  border: 1px solid transparent;
  cursor: pointer;
  font-family: inherit;
}
.btn-primary {
  background: var(--accent-grad);
  color: white;
  box-shadow: 0 8px 28px var(--shadow-glow);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 40px var(--shadow-glow); }
.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }
.btn-secondary {
  background: rgba(255,255,255,0.04);
  color: var(--text);
  border-color: var(--border);
}
.btn-secondary:hover { background: rgba(255,255,255,0.08); border-color: var(--border-hover); }

/* ─── Section header ────────────────────────────────────────────── */

.section-eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--teal);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 14px;
}
.section-title {
  font-size: clamp(2rem, 3.5vw, 2.75rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.025em;
  margin-bottom: 16px;
}
.section-lead {
  font-size: 1.1rem;
  color: var(--text-2);
  margin-bottom: 48px;
  max-width: 680px;
}

section {
  padding: 100px 0;
  position: relative;
}

/* ─── Content pages (privacy, terms, why) ──────────────────────── */

.page {
  padding: 140px 0 80px;
  min-height: 70vh;
}
.page-inner {
  max-width: 820px;
  margin: 0 auto;
  padding: 0 24px;
}
.page h1 {
  font-size: clamp(2.5rem, 4.5vw, 3.75rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.035em;
  margin-bottom: 18px;
}
.page h1 .accent {
  background: var(--warm-grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.page .lead {
  font-size: 1.2rem;
  color: var(--text-2);
  line-height: 1.55;
  margin-bottom: 12px;
}
.page .meta {
  font-size: 0.85rem;
  color: var(--text-3);
  margin-bottom: 40px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--border);
}
.page h2 {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.015em;
  margin: 40px 0 16px;
  color: var(--text);
}
.page h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin: 24px 0 8px;
  color: var(--text);
}
.page p {
  color: var(--text-2);
  font-size: 1rem;
  line-height: 1.75;
  margin-bottom: 14px;
}
.page p strong { color: var(--text); font-weight: 600; }
.page ul, .page ol {
  margin: 0 0 20px 22px;
  color: var(--text-2);
}
.page li {
  margin-bottom: 10px;
  line-height: 1.7;
  padding-left: 4px;
}
.page a {
  color: var(--teal);
  text-decoration: none;
  border-bottom: 1px solid rgba(21, 194, 219, 0.35);
  transition: color 0.2s, border-color 0.2s;
}
.page a:hover {
  color: white;
  border-color: white;
}

.callout {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px 24px;
  margin: 24px 0;
}
.callout p { margin-bottom: 0; }
.callout.accent {
  background: linear-gradient(135deg, rgba(21, 194, 219, 0.08), rgba(21, 194, 219, 0.02));
  border-color: rgba(21, 194, 219, 0.28);
}
.callout.warn {
  background: linear-gradient(135deg, rgba(232, 181, 71, 0.06), rgba(232, 181, 71, 0.01));
  border-color: rgba(232, 181, 71, 0.24);
}

/* ─── Footer (identical on every page) ─────────────────────────── */

.footer {
  background: var(--bg-deep);
  border-top: 1px solid var(--border);
  padding: 56px 0 40px;
}
.footer-grid {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
}
@media (max-width: 720px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}
.footer-col h4 {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-3);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.footer-col a {
  display: block;
  color: var(--text-2);
  text-decoration: none;
  font-size: 0.92rem;
  padding: 6px 0;
  transition: color 0.2s;
  border: none;
}
.footer-col a:hover { color: var(--text); }
.footer-about p {
  color: var(--text-3);
  font-size: 0.9rem;
  line-height: 1.6;
  margin-top: 16px;
  max-width: 320px;
}
.footer-bottom {
  max-width: 1120px;
  margin: 40px auto 0;
  padding: 32px 24px 0;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* ─── Utility ──────────────────────────────────────────────────── */

.text-grad {
  background: var(--warm-grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ─── Mobile tightening ────────────────────────────────────────── */

@media (max-width: 640px) {
  .container { padding: 0 20px; }
  section { padding: 72px 0; }
  .nav-inner { padding: 14px 20px; }
  .logo { font-size: 1.05rem; }
  .logo-mark { width: 28px; height: 28px; }
  .nav-cta { padding: 8px 14px; font-size: 0.82rem; }
  .page { padding: 110px 0 56px; }
  .page-inner { padding: 0 20px; }
  .footer-grid { padding: 0 20px; gap: 28px; }
  .footer-bottom { padding-left: 20px; padding-right: 20px; font-size: 0.8rem; }
  .section-title { font-size: 1.85rem; }
  .section-lead { font-size: 1rem; }
}

@media (max-width: 400px) {
  .hero { padding: 120px 0 56px !important; min-height: auto !important; }
  .phone { width: 260px !important; height: 520px !important; transform: rotateY(-6deg) rotateX(3deg) !important; }
  .hero-cta .btn { width: 100%; justify-content: center; }
  .waitlist-form { flex-direction: column; }
  .waitlist-form input[type="email"],
  .waitlist-form button { width: 100%; }
}