:root {
  --navy: #10283b;
  --teal: #2e6f74;
  --off-white: #f7f9f7;
  --sage: #8fa78e;
  --clay: #c98b68;
  --graphite: #4e5b66;
  --ink: #122230;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 82% 12%, rgba(201, 139, 104, 0.2), transparent 28rem),
    linear-gradient(135deg, var(--off-white), #edf3ee 58%, #dfe9e3);
}

.page-shell { width: min(1120px, calc(100% - 32px)); margin: 0 auto; }
.nav { display: flex; align-items: center; justify-content: space-between; padding: 28px 0; }
.brand, .nav-link { color: var(--navy); text-decoration: none; font-weight: 800; }
.brand { display: inline-flex; gap: 12px; align-items: center; font-family: "Space Grotesk", Inter, sans-serif; font-size: 1.15rem; }
.brand-logo { display: block; width: 44px; height: 44px; object-fit: contain; border-radius: 12px; box-shadow: 0 8px 22px rgba(16, 40, 59, 0.12); }
.brand-mark, .app-logo { display: grid; gap: 4px; transform: rotate(-10deg); }
.brand-mark span, .app-logo span { display: block; width: 30px; height: 10px; border-radius: 999px; background: var(--teal); }
.brand-mark span:nth-child(2), .app-logo span:nth-child(2) { background: var(--sage); transform: translateX(8px); }
.brand-mark span:nth-child(3), .app-logo span:nth-child(3) { background: var(--clay); }
.nav-link { border: 1px solid rgba(16, 40, 59, 0.18); border-radius: 999px; padding: 10px 16px; }

.hero { min-height: 72vh; display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.8fr); gap: 56px; align-items: center; padding: 42px 0 64px; }
.eyebrow { color: var(--teal); font-weight: 800; letter-spacing: 0.08em; text-transform: uppercase; font-size: 0.78rem; }
h1, h2 { font-family: "Space Grotesk", Inter, sans-serif; color: var(--navy); margin: 0; }
h1 { font-size: clamp(3rem, 7vw, 5.9rem); line-height: 0.92; letter-spacing: -0.07em; max-width: 780px; }
.subhead { color: var(--graphite); font-size: clamp(1.1rem, 2vw, 1.35rem); line-height: 1.55; max-width: 620px; margin: 26px 0 32px; }

.signup-card { background: rgba(255, 255, 255, 0.72); border: 1px solid rgba(16, 40, 59, 0.11); box-shadow: 0 24px 70px rgba(16, 40, 59, 0.12); border-radius: 24px; padding: 20px; max-width: 620px; backdrop-filter: blur(14px); }
.signup-card label { display: block; font-weight: 800; margin-bottom: 10px; color: var(--navy); }
.form-row { display: flex; gap: 10px; }
input, button { border: 0; border-radius: 14px; font: inherit; }
input { flex: 1; min-width: 0; padding: 16px; color: var(--navy); background: var(--off-white); outline: 1px solid rgba(16, 40, 59, 0.12); }
input:focus { outline: 3px solid rgba(46, 111, 116, 0.25); }
button { cursor: pointer; padding: 16px 20px; background: var(--navy); color: white; font-weight: 800; }
button[disabled] { cursor: progress; opacity: 0.72; }
.form-status { margin: 12px 0 0; color: var(--graphite); font-size: 0.93rem; }
.form-status.error { color: #9a3412; }
.form-status.success { color: var(--teal); font-weight: 700; }

.product-card { display: flex; justify-content: center; }
.phone-frame { width: min(360px, 100%); min-height: 620px; background: var(--navy); border-radius: 44px; padding: 28px; color: var(--off-white); box-shadow: 0 30px 100px rgba(16, 40, 59, 0.28); border: 10px solid rgba(255, 255, 255, 0.76); }
.phone-header { width: 88px; height: 6px; border-radius: 999px; background: rgba(247, 249, 247, 0.35); margin: 0 auto 78px; }
.app-logo { margin: 0 auto 28px; width: max-content; transform: rotate(-10deg) scale(1.9); }
.phone-frame h2 { color: var(--off-white); font-size: 2.05rem; line-height: 1.02; text-align: center; margin-top: 52px; }
.phone-frame p { color: rgba(247, 249, 247, 0.72); text-align: center; font-weight: 700; }
.stack-list { display: grid; gap: 12px; margin-top: 40px; }
.stack-list div { background: rgba(247, 249, 247, 0.1); border: 1px solid rgba(247, 249, 247, 0.11); border-radius: 18px; padding: 16px; }
.stack-list strong, .stack-list span { display: block; }
.stack-list span { color: rgba(247, 249, 247, 0.68); margin-top: 4px; font-size: 0.88rem; }

.value-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; padding: 0 0 80px; }
.value-grid article { background: rgba(255, 255, 255, 0.56); border: 1px solid rgba(16, 40, 59, 0.1); border-radius: 24px; padding: 26px; }
.icon { display: grid; place-items: center; width: 42px; height: 42px; border-radius: 14px; background: rgba(46, 111, 116, 0.12); color: var(--teal); font-weight: 900; margin-bottom: 22px; }
.value-grid h2 { font-size: 1.35rem; line-height: 1.15; }
.value-grid p { color: var(--graphite); line-height: 1.55; }

@media (max-width: 840px) {
  .hero { grid-template-columns: 1fr; gap: 36px; }
  .product-card { order: -1; }
  .phone-frame { min-height: 480px; }
  .value-grid { grid-template-columns: 1fr; }
}

@media (max-width: 580px) {
  .nav { gap: 16px; }
  .brand { font-size: 1rem; }
  .brand-logo { width: 38px; height: 38px; }
  .nav-link { display: none; }
  .form-row { flex-direction: column; }
  h1 { font-size: 3.15rem; }
}

.nav-actions { display: flex; align-items: center; gap: 10px; }
.legal-card a { color: var(--teal); font-weight: 800; }
.legal-page { padding-bottom: 80px; }
.legal-card { max-width: 860px; margin: 24px auto 0; background: rgba(255, 255, 255, 0.72); border: 1px solid rgba(16, 40, 59, 0.11); box-shadow: 0 24px 70px rgba(16, 40, 59, 0.12); border-radius: 28px; padding: clamp(24px, 5vw, 56px); backdrop-filter: blur(14px); }
.legal-card h1 { font-size: clamp(2.4rem, 6vw, 4.6rem); margin-bottom: 10px; }
.legal-card h2 { font-size: 1.45rem; margin-top: 34px; margin-bottom: 10px; }
.legal-card p, .legal-card li { color: var(--graphite); line-height: 1.7; }
.legal-card ul { padding-left: 1.25rem; }
.legal-updated { font-weight: 800; color: var(--teal) !important; }

@media (max-width: 580px) {
  .nav-actions .nav-link[href="#waitlist"] { display: none; }
}

.guidance-page { padding-bottom: 80px; }
.guidance-card { max-width: 920px; margin: 18px auto 0; background: rgba(255, 255, 255, 0.76); border: 1px solid rgba(16, 40, 59, 0.11); box-shadow: 0 24px 70px rgba(16, 40, 59, 0.12); border-radius: 30px; padding: clamp(24px, 5vw, 58px); backdrop-filter: blur(14px); }
.guidance-card h1 { font-size: clamp(2.35rem, 6vw, 4.8rem); margin-bottom: 18px; }
.guidance-deck { color: var(--graphite); font-size: clamp(1.08rem, 2vw, 1.28rem); line-height: 1.65; max-width: 760px; }
.guidance-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; margin: 32px 0; }
.guidance-grid div { background: rgba(247, 249, 247, 0.88); border: 1px solid rgba(16, 40, 59, 0.1); border-radius: 20px; padding: 20px; }
.guidance-grid p, .source-list li, .medical-disclaimer, .guidance-cta span { color: var(--graphite); line-height: 1.65; }
.guidance-label { display: block; color: var(--teal); font-size: 0.78rem; font-weight: 900; letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 8px; }
.source-list h2 { font-size: 1.55rem; margin-bottom: 8px; }
.source-list ul { padding-left: 1.25rem; }
.source-list a { color: var(--teal); font-weight: 800; }
.medical-disclaimer { margin: 30px 0; padding: 18px 20px; border-left: 5px solid var(--clay); background: rgba(201, 139, 104, 0.1); border-radius: 16px; font-weight: 700; }
.guidance-cta { display: flex; justify-content: space-between; gap: 20px; align-items: center; background: var(--navy); color: var(--off-white); border-radius: 24px; padding: 22px; }
.guidance-cta-top { margin: 26px 0; }
.guidance-cta strong, .guidance-cta span { display: block; }
.guidance-cta span { color: rgba(247, 249, 247, 0.72); margin-top: 4px; }
.guidance-cta a { flex: 0 0 auto; color: var(--navy); background: var(--off-white); border-radius: 999px; padding: 13px 18px; text-decoration: none; font-weight: 900; }

@media (max-width: 720px) {
  .guidance-grid { grid-template-columns: 1fr; }
  .guidance-cta { align-items: flex-start; flex-direction: column; }
}
.guidance-list { display: grid; gap: 12px; margin-top: 28px; }
.guidance-list-item { display: block; padding: 18px 20px; background: rgba(247, 249, 247, 0.9); border: 1px solid rgba(16, 40, 59, 0.1); border-radius: 18px; text-decoration: none; }
.guidance-list-item strong { display: block; color: var(--navy); font-family: "Space Grotesk", Inter, sans-serif; font-size: 1.2rem; }
.guidance-list-item span { display: block; color: var(--graphite); margin-top: 4px; }

.site-footer {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 28px;
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 34px 0 40px;
  color: var(--graphite);
  border-top: 1px solid rgba(16, 40, 59, 0.12);
}
.site-footer p { margin: 8px 0 0; line-height: 1.55; }
.footer-brand { color: var(--navy); font-family: "Space Grotesk", Inter, sans-serif; font-size: 1.12rem; font-weight: 900; text-decoration: none; }
.footer-links { display: grid; grid-template-columns: repeat(2, minmax(130px, 1fr)); gap: 28px; }
.footer-links h2 { font-size: 0.78rem; letter-spacing: 0.08em; text-transform: uppercase; margin: 0 0 12px; color: var(--teal); }
.footer-links a { display: block; color: var(--navy); font-weight: 800; text-decoration: none; margin-top: 9px; }
.site-footer a:hover { text-decoration: underline; }
.footer-copyright { grid-column: 1 / -1; font-size: 0.9rem; }
.legal-card .legal-updated + p { margin-top: 24px; }

@media (max-width: 720px) {
  .site-footer { grid-template-columns: 1fr; gap: 22px; }
  .footer-links { grid-template-columns: 1fr; gap: 18px; }
}

.doctor-page { padding-bottom: 82px; }
.doctor-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.42fr);
  gap: 28px;
  align-items: stretch;
  padding: 50px 0 34px;
}
.doctor-hero-copy,
.doctor-summary-card,
.doctor-card-grid article,
.doctor-reading-card,
.doctor-disclaimer {
  background: rgba(255, 255, 255, 0.74);
  border: 1px solid rgba(16, 40, 59, 0.11);
  box-shadow: 0 24px 70px rgba(16, 40, 59, 0.1);
  backdrop-filter: blur(14px);
}
.doctor-hero-copy { border-radius: 32px; padding: clamp(26px, 5vw, 58px); }
.doctor-hero h1 { font-size: clamp(2.55rem, 6.4vw, 5.15rem); line-height: 0.98; max-width: 880px; }
.doctor-deck { color: var(--graphite); font-size: clamp(1.1rem, 2vw, 1.32rem); line-height: 1.65; max-width: 760px; margin: 24px 0 0; }
.doctor-summary-card { border-radius: 28px; padding: 28px; align-self: end; }
.doctor-summary-card p { color: var(--graphite); font-size: 1.04rem; line-height: 1.65; margin: 0; }
.doctor-section { margin-top: 28px; }
.doctor-section-heading { max-width: 760px; margin-bottom: 18px; }
.doctor-section h2 { font-size: clamp(1.75rem, 3vw, 2.45rem); line-height: 1.08; }
.doctor-card-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.doctor-card-grid article { border-radius: 24px; padding: 24px; }
.doctor-card-grid h3 { color: var(--navy); font-family: "Space Grotesk", Inter, sans-serif; font-size: 1.24rem; line-height: 1.15; margin: 0 0 10px; }
.doctor-card-grid p, .doctor-reading-card li, .doctor-disclaimer p { color: var(--graphite); line-height: 1.68; }
.doctor-card-grid p { margin: 0; }
.doctor-reading-card { display: grid; grid-template-columns: 0.6fr 1fr; gap: 30px; border-radius: 28px; padding: clamp(24px, 4vw, 42px); }
.doctor-reading-card ul { margin: 0; padding-left: 1.2rem; }
.doctor-reading-card li { margin: 0 0 12px; }
.doctor-disclaimer { border-left: 6px solid var(--clay); border-radius: 28px; padding: clamp(24px, 4vw, 42px); }
.doctor-disclaimer h2 { margin-bottom: 14px; }
.doctor-disclaimer p { max-width: 920px; }
.doctor-disclaimer strong { color: var(--navy); }
.doctor-production-note { font-weight: 800; margin-bottom: 0; }

@media (max-width: 900px) {
  .doctor-hero,
  .doctor-reading-card { grid-template-columns: 1fr; }
  .doctor-summary-card { align-self: auto; }
  .doctor-card-grid { grid-template-columns: 1fr; }
}