/* === Reset & Base === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #FFFFFF;
  --card: #F5F5F7;
  --card-border: #D2D2D7;
  --accent: #5AC8FA;
  --accent-blue: #0A84FF;
  --gradient-start: #0A84FF;
  --gradient-end: #0066CC;
  --text: #1D1D1F;
  --text-muted: #6E6E73;
  --text-dim: #A1A1A6;
  --max-width: 1120px;
  --nav-height: 64px;
}

[data-theme="dark"] {
  --bg: #000000;
  --card: #1C1C1E;
  --card-border: #2C2C2E;
  --text: #F5F5F7;
  --text-muted: #A1A1A6;
  --text-dim: #6E6E73;
}

[data-theme="light"] {
  --bg: #FFFFFF;
  --card: #F5F5F7;
  --card-border: #D2D2D7;
  --text: #1D1D1F;
  --text-muted: #6E6E73;
  --text-dim: #A1A1A6;
}

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

img, svg { display: block; max-width: 100%; }

.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }

/* === Nav === */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  transition: background .3s, backdrop-filter .3s;
}

.nav.scrolled {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--card-border);
}

[data-theme="dark"] .nav.scrolled {
  background: rgba(0, 0, 0, 0.85);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
}

.nav-logo img { width: 36px; height: 36px; border-radius: 8px; }

.nav-links { display: flex; align-items: center; gap: 32px; list-style: none; }
.nav-links a {
  color: var(--text-muted);
  font-size: 14px;
  font-weight: 500;
  transition: color .2s;
  text-decoration: none;
}
.nav-links a:hover { color: var(--text); text-decoration: none; }

.nav-cta {
  background: var(--accent-blue) !important;
  color: #fff !important;
  padding: 8px 20px;
  border-radius: 20px;
  font-weight: 600 !important;
  font-size: 14px !important;
  transition: opacity .2s;
}
.nav-cta:hover { opacity: 0.85; text-decoration: none !important; }

/* Mobile nav */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  margin: 5px 0;
  border-radius: 2px;
  transition: transform .3s, opacity .3s;
}
.nav-toggle.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* Theme toggle */
.theme-toggle {
  background: none;
  border: 1px solid var(--card-border);
  border-radius: 50%;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 18px;
  line-height: 1;
  color: var(--text-muted);
  transition: border-color .2s, color .2s;
  flex-shrink: 0;
}
.theme-toggle:hover { border-color: var(--accent-blue); color: var(--text); }

/* === Hero === */
.hero {
  padding: calc(var(--nav-height) + 80px) 0 80px;
  text-align: center;
}

.hero h1 {
  font-size: clamp(36px, 5vw, 60px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
  background: linear-gradient(135deg, var(--text) 0%, var(--text-muted) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: clamp(16px, 2vw, 20px);
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto 40px;
  line-height: 1.6;
}

.badge-row {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.badge-row a { display: inline-block; transition: transform .2s, opacity .2s; }
.badge-row a:hover { transform: scale(1.05); opacity: 0.9; }

.badge-row img { height: 52px; }
.badge-coming-soon img { height: 78px; margin: -13px 0; }

.badge-coming-soon {
  display: inline-block;
  position: relative;
  opacity: 0.5;
  cursor: default;
}

.coming-soon-label {
  position: absolute;
  bottom: -22px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  white-space: nowrap;
}

/* === Features === */
.features { padding: 80px 0; }

.section-label {
  text-align: center;
  font-size: 14px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent-blue);
  margin-bottom: 12px;
}

.section-title {
  text-align: center;
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 700;
  margin-bottom: 48px;
  letter-spacing: -0.01em;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 20px;
  padding: 36px 28px;
  transition: transform .2s, border-color .2s;
}
.feature-card:hover { transform: translateY(-4px); border-color: var(--accent-blue); }

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 24px;
}

.feature-card h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 8px;
}

.feature-card p {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* === Medications === */
.medications { padding: 64px 0; }

.med-tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  max-width: 800px;
  margin: 0 auto;
}

.med-tag {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 24px;
  padding: 10px 20px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-muted);
  transition: border-color .2s, color .2s;
}
.med-tag:hover { border-color: var(--accent-blue); color: var(--text); }

.med-tag-more {
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
  border-color: transparent;
  color: #fff;
  font-weight: 600;
}

/* === Privacy Bar === */
.privacy-bar {
  padding: 48px 0;
}

.privacy-bar-inner {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 20px;
  padding: 36px 48px;
  text-align: center;
}

.privacy-bar-inner .shield { font-size: 32px; margin-bottom: 12px; }

.privacy-bar-inner h2 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 8px;
}

.privacy-bar-inner p {
  color: var(--text-muted);
  font-size: 16px;
}

/* === Stats === */
.stats { padding: 48px 0; }

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  text-align: center;
}

.stat-item h3 {
  font-size: clamp(28px, 3vw, 36px);
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent), var(--accent-blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 4px;
}

.stat-item p {
  color: var(--text-muted);
  font-size: 15px;
}

/* === Screenshots === */
.screenshots { padding: 80px 0; }

.screenshots-scroll {
  display: flex;
  gap: 20px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  padding: 0 24px 20px;
  scrollbar-width: none;
}
.screenshots-scroll::-webkit-scrollbar { display: none; }

.screenshot-item {
  flex: 0 0 260px;
  scroll-snap-align: center;
}

.screenshot-placeholder {
  width: 260px;
  height: 520px;
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-dim);
  font-size: 14px;
  text-align: center;
  padding: 20px;
}

/* === FAQ === */
.faq { padding: 80px 0; }

.faq-list { max-width: 720px; margin: 0 auto; }

.faq-item {
  border-bottom: 1px solid var(--card-border);
}

.faq-item summary {
  padding: 20px 0;
  font-size: 17px;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text);
  transition: color .2s;
}
.faq-item summary:hover { color: var(--accent); }

.faq-item summary::after {
  content: '+';
  font-size: 22px;
  font-weight: 300;
  color: var(--text-dim);
  transition: transform .3s;
  flex-shrink: 0;
  margin-left: 16px;
}
.faq-item[open] summary::after { content: '\2212'; }

.faq-item summary::-webkit-details-marker { display: none; }

.faq-answer {
  padding: 0 0 20px;
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.7;
}

/* === Download CTA === */
.download-cta {
  padding: 80px 0;
  text-align: center;
}

.download-cta h2 {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 700;
  margin-bottom: 12px;
}

.download-cta p {
  color: var(--text-muted);
  font-size: 16px;
  margin-bottom: 32px;
}

/* === Footer === */
.footer {
  border-top: 1px solid var(--card-border);
  padding: 48px 0 32px;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 14px;
  margin-top: 12px;
  line-height: 1.6;
}

.footer-col h4 {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--text);
}

.footer-col a {
  display: block;
  color: var(--text-muted);
  font-size: 14px;
  padding: 4px 0;
  transition: color .2s;
}
.footer-col a:hover { color: var(--text); text-decoration: none; }

.footer-bottom {
  border-top: 1px solid var(--card-border);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 24px;
  flex-wrap: wrap;
}

.footer-disclaimer {
  font-size: 12px;
  color: var(--text-dim);
  line-height: 1.6;
  max-width: 700px;
}

.footer-legal {
  display: flex;
  gap: 20px;
  font-size: 13px;
  flex-shrink: 0;
}

.footer-legal a { color: var(--text-muted); }

/* === Responsive === */
@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 24px;
    gap: 20px;
    border-bottom: 1px solid var(--card-border);
  }
  .nav-links.open { display: flex; }
  [data-theme="dark"] .nav-links {
    background: rgba(0, 0, 0, 0.95);
  }
  .nav-toggle { display: block; }
  .features-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .privacy-bar-inner { padding: 28px 24px; }
  .hero { padding: calc(var(--nav-height) + 48px) 0 48px; }
}

@media (max-width: 480px) {
  .footer-inner { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; }
}