:root {
  --bg: #0a1420;
  --elevated: #101d2c;
  --subtle: #0d1824;
  --line: rgba(226, 232, 240, 0.08);
  --line-strong: rgba(226, 232, 240, 0.16);
  --fg: #f1f5f9;
  --muted: #94a3b8;
  --faint: #64748b;
  --accent: #38bdf8;
  --brand: #0284C7;
  --coral: #FF7F50;
  --radius-xl: 14px;
  --radius-xxl: 16px;
  --radius-full: 999px;
  --font-display: 'Bricolage Grotesque', sans-serif;
  --font-sans: 'Instrument Sans', sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-sans);
  line-height: 1.5;
}
img { max-width: 100%; display: block; }
a { color: inherit; }

.header {
  position: sticky;
  top: 0;
  z-index: 50;
  padding-top: env(safe-area-inset-top);
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 14px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  text-decoration: none;
  color: var(--fg);
}
.nav { display: none; gap: 24px; }
.nav a { text-decoration: none; color: var(--muted); font-weight: 600; font-size: 14px; }
.nav a:hover { color: var(--fg); }
@media (min-width: 768px) { .nav { display: flex; } }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-xl);
  font-weight: 700;
  font-family: var(--font-sans);
  border: none;
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
  transition: transform 180ms cubic-bezier(0.16, 1, 0.3, 1), filter 180ms ease, background-color 180ms ease;
}
.btn-sm { min-height: 44px; padding: 0 16px; font-size: 13px; }
.btn-lg { min-height: 52px; padding: 0 26px; font-size: 15px; }
.btn-primary { background: var(--brand); color: #fff; box-shadow: 0 8px 24px rgba(2, 132, 199, 0.35); }
.btn-primary:hover { filter: brightness(1.08); transform: translateY(-1px); }
.btn-secondary { background: transparent; color: var(--fg); border: 1px solid var(--line-strong); }
.btn-secondary:hover { background: var(--subtle); }
.btn:focus-visible, .waitlist-close:focus-visible, #waitlist-form input:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.hero {
  max-width: 1100px;
  margin: 0 auto;
  padding: 56px 20px 40px;
  display: grid;
  gap: 40px;
}
@media (min-width: 900px) { .hero { grid-template-columns: 1.1fr 1fr; align-items: center; padding-top: 88px; } }
.hero h1 { font-family: var(--font-display); font-weight: 700; font-size: 34px; line-height: 1.15; margin: 0 0 16px; }
@media (min-width: 640px) { .hero h1 { font-size: 44px; } }
@media (min-width: 1024px) { .hero h1 { font-size: 54px; } }
.hero h1 .accent { color: var(--accent); }
.hero-sub { max-width: 480px; color: var(--muted); font-size: 16px; margin: 0 0 24px; }
@media (min-width: 640px) { .hero-sub { font-size: 18px; } }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 14px; }
.hero-note { font-size: 12px; color: var(--faint); }
.hero-mockups { position: relative; min-height: 320px; }
.mockup { position: absolute; width: 62%; height: auto; border-radius: 28px; border: 6px solid var(--elevated); box-shadow: 0 30px 60px rgba(0,0,0,0.5); }
.mockup-back { top: 0; left: 0; opacity: 0.9; animation: hero-dashboard-in 700ms cubic-bezier(0.16, 1, 0.3, 1) both; }
.mockup-front { bottom: 0; right: 0; z-index: 1; animation: hero-appointment-in 760ms 90ms cubic-bezier(0.16, 1, 0.3, 1) both; }

@keyframes hero-dashboard-in {
  from { opacity: 0; transform: translateY(18px) scale(0.96); }
  to { opacity: 0.9; transform: translateY(0) scale(1); }
}

@keyframes hero-appointment-in {
  from { opacity: 0; transform: translate(24px, 18px) scale(0.9); }
  to { opacity: 1; transform: translate(0, 0) scale(1); }
}

.section { max-width: 1100px; margin: 0 auto; padding: 64px 20px; }
.eyebrow { font-size: 12px; font-weight: 700; color: var(--accent); text-transform: uppercase; letter-spacing: 0.06em; margin: 0 0 8px; }
.section h2 { font-family: var(--font-display); font-weight: 700; font-size: 28px; max-width: 560px; margin: 0 0 8px; }
@media (min-width: 640px) { .section h2 { font-size: 34px; } }
.section-sub { color: var(--muted); margin: 0 0 32px; }

.feature-grid { margin-top: 32px; display: grid; gap: 16px; grid-template-columns: 1fr; }
@media (min-width: 640px) { .feature-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .feature-grid { grid-template-columns: repeat(4, 1fr); } }
.feature-card { background: var(--elevated); border: 1px solid var(--line); border-radius: var(--radius-xxl); padding: 20px; }
.feature-card h3 { font-family: var(--font-display); font-size: 15px; margin: 0 0 8px; }
.feature-card p { color: var(--muted); font-size: 13px; margin: 0; line-height: 1.5; }

.fan-carousel { position: relative; max-width: 900px; margin: 40px auto 0; padding: 0 60px; }
.fan-track { position: relative; display: flex; align-items: center; justify-content: center; }
.fan-card { position: absolute; width: 320px; transition: transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94), opacity 0.4s ease; cursor: pointer; overflow: hidden; border-radius: 24px; border: 1px solid var(--line); box-shadow: 0 20px 40px rgba(0,0,0,0.4); }
.fan-card img { width: 100%; height: auto; display: block; }
.fan-label { display: block; text-align: center; margin-top: 12px; font-weight: 600; font-size: 13px; color: var(--muted); }
.fan-arrow { position: absolute; top: 50%; transform: translateY(-50%); width: 48px; height: 48px; border-radius: 50%; border: 1px solid var(--line-strong); background: var(--elevated); color: var(--fg); font-size: 24px; cursor: pointer; z-index: 20; display: flex; align-items: center; justify-content: center; transition: background 0.2s ease, border-color 0.2s ease; }
.fan-arrow:hover { background: var(--subtle); border-color: var(--accent); }
.fan-arrow-left { left: 0; }
.fan-arrow-right { right: 0; }
.fan-dots { display: flex; justify-content: center; gap: 8px; margin-top: 24px; }
.fan-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--faint); border: none; cursor: pointer; transition: background 0.3s ease, transform 0.3s ease; padding: 0; }
.fan-dot-active { background: var(--accent); transform: scale(1.3); }
.fan-track { height: 620px; }
@media (max-width: 639px) { .fan-track { height: 380px; } .fan-card { width: 180px; } .fan-carousel { padding: 0 50px; } }

.pricing-grid { margin-top: 32px; display: grid; gap: 20px; grid-template-columns: 1fr; }
@media (min-width: 900px) { .pricing-grid { grid-template-columns: repeat(3, 1fr); } }
.price-card { position: relative; background: var(--elevated); border: 1px solid var(--line); border-radius: var(--radius-xxl); padding: 24px; display: flex; flex-direction: column; gap: 16px; }
.price-card-popular { border-color: rgba(2, 132, 199, 0.6); }
.chip-popular { position: absolute; top: 20px; right: 20px; background: rgba(255, 127, 80, 0.15); color: var(--coral); font-size: 10px; font-weight: 700; padding: 4px 10px; border-radius: var(--radius-full); }
.price-card h3 { font-family: var(--font-display); font-size: 20px; margin: 0; }
.price-tagline { color: var(--muted); font-size: 13px; margin: -12px 0 0; }
.price-amount { font-family: var(--font-display); font-size: 32px; font-weight: 700; margin: 0; }
.price-amount span { font-size: 13px; color: var(--faint); font-weight: 400; }
.price-features { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.price-features li { font-size: 13px; color: var(--muted); padding-left: 20px; position: relative; }
.price-features li::before { content: '✓'; position: absolute; left: 0; color: var(--accent); font-weight: 700; }

.cta-final { max-width: 700px; margin: 0 auto; padding: 64px 20px; text-align: center; }
.cta-final h2 { font-family: var(--font-display); font-size: 28px; margin: 0 0 12px; }
.cta-final p { color: var(--muted); margin: 0 0 24px; }

.footer { border-top: 1px solid var(--line); padding: 32px 20px max(32px, env(safe-area-inset-bottom)); text-align: center; }
.footer-logo { font-family: var(--font-display); font-weight: 700; margin: 0 0 6px; }
.footer-copy { color: var(--faint); font-size: 12px; margin: 0; }

.waitlist-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.6); display: flex; align-items: center; justify-content: center; padding: max(20px, env(safe-area-inset-top)) max(20px, env(safe-area-inset-right)) max(20px, env(safe-area-inset-bottom)) max(20px, env(safe-area-inset-left)); z-index: 100; }
.waitlist-overlay[hidden] { display: none; }
.waitlist-modal { position: relative; width: 100%; max-width: 400px; background: var(--elevated); border: 1px solid var(--line); border-radius: var(--radius-xxl); padding: 28px; animation: waitlist-in 220ms cubic-bezier(0.16, 1, 0.3, 1) both; }

@keyframes waitlist-in {
  from { opacity: 0; transform: translateY(8px) scale(0.96); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}
.waitlist-close { position: absolute; top: 16px; right: 16px; width: 44px; height: 44px; background: none; border: none; color: var(--muted); font-size: 16px; cursor: pointer; }
.waitlist-modal h3 { font-family: var(--font-display); margin: 0 0 6px; }
.waitlist-sub { color: var(--muted); font-size: 13px; margin: 0 0 20px; }
#waitlist-form label { display: block; font-size: 12px; font-weight: 600; color: var(--muted); margin-bottom: 14px; }
#waitlist-form input { display: block; width: 100%; margin-top: 6px; min-height: 44px; border-radius: var(--radius-xl); border: 1px solid var(--line); background: var(--subtle); color: var(--fg); padding: 0 14px; font-size: 14px; font-family: var(--font-sans); }
#waitlist-form .btn { width: 100%; margin-top: 6px; }
.waitlist-message { margin-top: 14px; font-size: 13px; text-align: center; color: var(--accent); }

@media (max-width: 639px) {
  #waitlist-form input { font-size: 16px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, ::before, ::after { transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
  .mockup-back, .mockup-front, .waitlist-modal { animation: none !important; }
}