/* ─── TOKENS ─────────────────────────────────────────────────────────────── */
:root {
  --white: #ffffff;
  --black: #0a0a0a;
  --gray-50: #f9f9f9;
  --gray-100: #f2f2f2;
  --gray-200: #e5e5e5;
  --gray-400: #9a9a9a;
  --gray-600: #5a5a5a;
  --gray-800: #1a1a1a;
  --teal: #0a7a6a;
  --teal-light: #e6f4f1;
  --orange: #e8520a;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --r: 16px;
  --r-lg: 24px;
  --r-xl: 32px;
  --transition: 200ms cubic-bezier(0.16, 1, 0.3, 1);
}

/* ─── BASE ───────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; -webkit-font-smoothing: antialiased; }
body { font-family: var(--font); background: var(--white); color: var(--black); line-height: 1.6; overflow-x: hidden; }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
h1,h2,h3,h4,h5 { line-height: 1.1; letter-spacing: -0.03em; text-wrap: balance; }

.container { max-width: 1140px; margin: 0 auto; padding: 0 clamp(20px, 5vw, 60px); }
.section { padding: clamp(72px, 10vw, 140px) 0; }
.section-light { background: var(--gray-50); }

/* ─── NAV ────────────────────────────────────────────────────────────────── */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--gray-200);
  transition: box-shadow var(--transition);
}
.nav.scrolled { box-shadow: 0 2px 20px rgba(0,0,0,0.06); }
.nav-inner {
  max-width: 1140px; margin: 0 auto;
  padding: 0 clamp(20px, 5vw, 60px);
  height: 64px; display: flex; align-items: center; justify-content: space-between; gap: 32px;
}
.logo { display: flex; align-items: center; gap: 10px; font-size: 20px; font-weight: 700; letter-spacing: -0.5px; }
.nav-links { display: flex; gap: 28px; }
.nav-links a { font-size: 15px; font-weight: 500; color: var(--gray-600); transition: color var(--transition); }
.nav-links a:hover { color: var(--black); }
.nav-cta {
  background: var(--black); color: var(--white);
  font-size: 14px; font-weight: 600; padding: 9px 22px;
  border-radius: 50px; transition: background var(--transition), transform var(--transition);
  white-space: nowrap;
}
.nav-cta:hover { background: var(--gray-800); transform: translateY(-1px); }
.hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; background: none; border: none; padding: 4px; }
.hamburger span { display: block; width: 22px; height: 2px; background: var(--black); border-radius: 2px; }

/* ─── BUTTONS ────────────────────────────────────────────────────────────── */
.btn-dark {
  display: inline-block; background: var(--black); color: var(--white);
  font-size: 16px; font-weight: 600; padding: 14px 28px; border-radius: 50px;
  transition: background var(--transition), transform var(--transition);
}
.btn-dark:hover { background: #333; transform: translateY(-2px); }
.btn-outline {
  display: inline-block; background: transparent; color: var(--black);
  font-size: 16px; font-weight: 600; padding: 14px 28px; border-radius: 50px;
  border: 1.5px solid var(--gray-200);
  transition: border-color var(--transition), transform var(--transition);
}
.btn-outline:hover { border-color: var(--gray-400); transform: translateY(-2px); }

/* ─── HERO ───────────────────────────────────────────────────────────────── */
.hero {
  display: grid; grid-template-columns: 1fr 1fr;
  align-items: center; gap: 60px;
  max-width: 1140px; margin: 0 auto;
  padding: clamp(100px, 14vw, 160px) clamp(20px, 5vw, 60px) clamp(72px, 10vw, 120px);
  min-height: 95svh;
}
.hero-eyebrow { font-size: 13px; font-weight: 600; letter-spacing: 0.5px; color: var(--teal); margin-bottom: 20px; text-transform: uppercase; }
h1 { font-size: clamp(2.8rem, 5vw, 5.5rem); font-weight: 900; margin-bottom: 24px; }
h1 .accent { color: var(--teal); }
.hero-body { font-size: clamp(1rem, 1.5vw, 1.2rem); color: var(--gray-600); max-width: 480px; line-height: 1.7; margin-bottom: 36px; }
.hero-btns { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 48px; }
.hero-stats { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; }
.stat { display: flex; flex-direction: column; }
.stat strong { font-size: 24px; font-weight: 800; color: var(--black); }
.stat span { font-size: 12px; color: var(--gray-400); }
.stat-sep { width: 1px; height: 36px; background: var(--gray-200); }
.hero-img { position: relative; }
.hero-img img { border-radius: var(--r-xl); width: 100%; object-fit: cover; aspect-ratio: 4/3; }
.hero-float-card {
  position: absolute; bottom: -20px; left: -20px;
  background: white; border-radius: var(--r);
  padding: 14px 20px; display: flex; align-items: center; gap: 12px;
  box-shadow: 0 8px 40px rgba(0,0,0,0.12);
  font-weight: 600;
}
.float-icon { font-size: 22px; }
.float-val { font-size: 20px; font-weight: 800; color: var(--teal); }
.float-label { font-size: 12px; color: var(--gray-400); }

/* ─── PROOF STRIP ────────────────────────────────────────────────────────── */
.proof-strip {
  background: var(--gray-50); border-top: 1px solid var(--gray-200); border-bottom: 1px solid var(--gray-200);
  padding: 16px clamp(20px, 5vw, 60px);
  display: flex; align-items: center; justify-content: center; gap: 16px; flex-wrap: wrap;
  font-size: 13px; color: var(--gray-600);
}
.proof-strip strong { color: var(--black); }
.proof-dot { color: var(--gray-200); }

/* ─── HOW IT WORKS ───────────────────────────────────────────────────────── */
.section-label { font-size: 12px; font-weight: 700; letter-spacing: 1.5px; text-transform: uppercase; color: var(--teal); margin-bottom: 16px; }
.section-title { font-size: clamp(2rem, 3.5vw, 3.2rem); font-weight: 800; margin-bottom: 20px; }
.section-sub { font-size: clamp(1rem, 1.5vw, 1.15rem); color: var(--gray-600); max-width: 600px; line-height: 1.7; margin-bottom: 64px; }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; }
.step { display: flex; flex-direction: column; gap: 12px; }
.step-n { font-size: 12px; font-weight: 700; color: var(--gray-400); letter-spacing: 1px; }
.step-icon { font-size: 40px; margin: 4px 0; }
.step h3 { font-size: 20px; font-weight: 700; }
.step p { font-size: 15px; color: var(--gray-600); line-height: 1.7; }

/* ─── FULL BLEED ─────────────────────────────────────────────────────────── */
.fullbleed-section {
  display: grid; grid-template-columns: 1fr 1fr; min-height: 70svh;
}
.fullbleed-img { overflow: hidden; }
.fullbleed-img img { width: 100%; height: 100%; object-fit: cover; }
.fullbleed-text {
  background: var(--gray-50); padding: clamp(60px, 8vw, 120px) clamp(40px, 6vw, 100px);
  display: flex; flex-direction: column; justify-content: center; gap: 20px;
}
.fullbleed-text h2 { font-size: clamp(1.8rem, 3vw, 2.8rem); font-weight: 800; }
.fullbleed-text p { font-size: 16px; color: var(--gray-600); line-height: 1.7; max-width: 420px; }

/* ─── SAFETY ─────────────────────────────────────────────────────────────── */
.safety-wrap { display: grid; grid-template-columns: 1.2fr 1fr; gap: 80px; align-items: start; }
.safety-wrap h2 { font-size: clamp(1.8rem, 3vw, 2.8rem); font-weight: 800; margin-bottom: 16px; }
.safety-wrap > .safety-left > p { font-size: 16px; color: var(--gray-600); line-height: 1.7; margin-bottom: 40px; }
.safety-items { display: flex; flex-direction: column; gap: 28px; }
.safety-item { display: flex; gap: 16px; }
.safety-item > span { font-size: 24px; flex-shrink: 0; margin-top: 2px; }
.safety-item strong { display: block; font-size: 16px; font-weight: 700; margin-bottom: 4px; }
.safety-item p { font-size: 14px; color: var(--gray-600); line-height: 1.6; }
.safety-right { display: flex; flex-direction: column; gap: 20px; }
.safety-big-stat { background: var(--white); border: 1.5px solid var(--gray-200); border-radius: var(--r-lg); padding: 32px; }
.big-num { font-size: clamp(3rem, 6vw, 5rem); font-weight: 900; color: var(--teal); line-height: 1; margin-bottom: 8px; }
.safety-big-stat p { font-size: 14px; color: var(--gray-600); line-height: 1.5; }
.safety-badge { background: var(--teal); border-radius: var(--r-lg); padding: 28px; color: white; }
.safety-badge strong { display: block; font-size: 20px; font-weight: 800; margin-bottom: 8px; }
.safety-badge p { font-size: 14px; opacity: 0.85; line-height: 1.5; }

/* ─── ORB / AI SECTION ───────────────────────────────────────────────────── */
.orb-section { background: var(--black); color: var(--white); }
.orb-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.orb-visual { position: relative; display: flex; justify-content: center; align-items: center; min-height: 400px; }
.orb-sphere {
  width: 180px; height: 180px; border-radius: 50%;
  background: radial-gradient(circle at 38% 38%, #2EC4C4, #0a4040 70%);
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 0 80px rgba(46,196,196,0.35), 0 0 0 1px rgba(46,196,196,0.2);
  position: relative; z-index: 2;
  animation: orbFloat 4s ease-in-out infinite;
}
@keyframes orbFloat {
  0%,100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}
.orb-glow {
  position: absolute; width: 220px; height: 220px; border-radius: 50%;
  background: rgba(46,196,196,0.12); filter: blur(30px); animation: orbPulse 3s ease-in-out infinite;
}
@keyframes orbPulse { 0%,100% { opacity: 0.6; } 50% { opacity: 1; } }
.orb-eyes { display: flex; gap: 22px; position: relative; z-index: 1; }
.orb-eye { width: 18px; height: 24px; background: white; border-radius: 50%; animation: orbBlink 4s ease-in-out infinite; }
@keyframes orbBlink { 0%,85%,100% { transform: scaleY(1); } 90% { transform: scaleY(0.08); } }
.orb-chat-bubble {
  position: absolute; background: rgba(255,255,255,0.08); backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,0.12); border-radius: 18px; padding: 12px 18px;
  font-size: 14px; line-height: 1.5; max-width: 220px;
}
.orb-chat-1 { top: 20px; left: 0; animation: fadeInUp 0.8s ease 0.3s both; }
.orb-chat-2.orb-reply { bottom: 20px; right: 0; background: rgba(46,196,196,0.15); border-color: rgba(46,196,196,0.3); animation: fadeInUp 0.8s ease 0.8s both; }
@keyframes fadeInUp { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }
.orb-text .section-label { color: #2EC4C4; }
.orb-text h2 { font-size: clamp(2rem, 3vw, 3rem); font-weight: 800; margin-bottom: 20px; color: white; }
.orb-text p { font-size: 16px; color: rgba(255,255,255,0.6); line-height: 1.7; margin-bottom: 28px; }
.orb-features { list-style: none; display: flex; flex-direction: column; gap: 12px; }
.orb-features li { font-size: 15px; color: rgba(255,255,255,0.75); }

/* ─── SCIENCE ────────────────────────────────────────────────────────────── */
.science-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-bottom: 40px; }
.science-card { background: var(--white); border: 1.5px solid var(--gray-200); border-radius: var(--r-lg); padding: 36px; transition: transform var(--transition), box-shadow var(--transition); }
.science-card:hover { transform: translateY(-4px); box-shadow: 0 12px 40px rgba(0,0,0,0.08); }
.sc-icon { font-size: 36px; margin-bottom: 20px; }
.science-card h3 { font-size: 19px; font-weight: 700; margin-bottom: 12px; }
.science-card p { font-size: 15px; color: var(--gray-600); line-height: 1.7; }
.science-card em { color: var(--teal); font-style: normal; font-weight: 600; }
.conference-strip {
  background: var(--black); border-radius: var(--r-lg); padding: 28px 36px;
  display: flex; align-items: center; gap: 20px; color: white;
}
.conf-badge { background: var(--teal); border-radius: 50px; padding: 6px 16px; font-size: 12px; font-weight: 700; white-space: nowrap; }
.conference-strip p { font-size: 15px; color: rgba(255,255,255,0.7); line-height: 1.5; }
.conference-strip strong { color: white; }

/* ─── DOCTOR ─────────────────────────────────────────────────────────────── */
.doctor-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.doctor-img img { border-radius: var(--r-xl); width: 100%; object-fit: cover; aspect-ratio: 4/3; }
.doctor-text h2 { font-size: clamp(2rem, 3vw, 3rem); font-weight: 800; margin-bottom: 16px; }
.doctor-text > p { font-size: 16px; color: var(--gray-600); line-height: 1.7; margin-bottom: 36px; }
.doctor-features { display: flex; flex-direction: column; gap: 20px; margin-bottom: 36px; }
.df { display: flex; gap: 14px; align-items: flex-start; }
.df > span { font-size: 22px; flex-shrink: 0; }
.df strong { display: block; font-size: 15px; font-weight: 700; margin-bottom: 4px; }
.df p { font-size: 14px; color: var(--gray-600); line-height: 1.5; }

/* ─── DOWNLOAD ───────────────────────────────────────────────────────────── */
.download-sec { background: var(--gray-50); }
.dl-wrap { display: grid; grid-template-columns: 1fr auto; gap: 80px; align-items: center; }
.dl-text h2 { font-size: clamp(2rem, 3.5vw, 3.2rem); font-weight: 800; margin-bottom: 16px; }
.dl-text > p { font-size: 16px; color: var(--gray-600); margin-bottom: 32px; }
.dl-btns { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 24px; }
.dl-btn {
  display: flex; align-items: center; gap: 12px;
  padding: 14px 24px; border-radius: var(--r); min-width: 180px;
}
.dl-btn small { display: block; font-size: 11px; opacity: 0.6; }
.dl-btn span { display: block; font-size: 15px; font-weight: 700; }
.dl-soon { opacity: 0.45; cursor: not-allowed; pointer-events: none; }
.dl-note { font-size: 13px; color: var(--gray-400); }
.dl-qr { }
.qr-box { background: white; border: 1.5px solid var(--gray-200); border-radius: var(--r-lg); padding: 24px; text-align: center; display: flex; flex-direction: column; align-items: center; gap: 10px; }
.qr-box canvas { border-radius: 8px; }
.qr-box p { font-size: 12px; color: var(--gray-400); }

/* ─── FOOTER ─────────────────────────────────────────────────────────────── */
.footer { border-top: 1px solid var(--gray-200); padding: 64px 0 32px; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 48px; }
.footer-logo { margin-bottom: 12px; }
.footer-tagline { font-size: 14px; color: var(--gray-600); margin-bottom: 4px; }
.footer-co { font-size: 12px; color: var(--gray-400); }
.footer-grid h5 { font-size: 13px; font-weight: 700; margin-bottom: 16px; }
.footer-grid a { display: block; font-size: 14px; color: var(--gray-600); margin-bottom: 10px; transition: color var(--transition); }
.footer-grid a:hover { color: var(--black); }
.footer-bottom { border-top: 1px solid var(--gray-200); padding-top: 24px; }
.footer-bottom p { font-size: 12px; color: var(--gray-400); line-height: 1.6; }

/* ─── REVEAL ANIMATION ───────────────────────────────────────────────────── */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ─── RESPONSIVE ─────────────────────────────────────────────────────────── */
@media (max-width: 960px) {
  .hero { grid-template-columns: 1fr; min-height: auto; padding-top: 100px; }
  .hero-body { max-width: 100%; }
  .hero-img { order: -1; }
  .hero-float-card { bottom: 10px; left: 10px; }
  .fullbleed-section { grid-template-columns: 1fr; }
  .fullbleed-img { aspect-ratio: 16/9; }
  .safety-wrap { grid-template-columns: 1fr; gap: 48px; }
  .orb-layout { grid-template-columns: 1fr; }
  .science-cards { grid-template-columns: 1fr; }
  .doctor-layout { grid-template-columns: 1fr; }
  .dl-wrap { grid-template-columns: 1fr; }
  .dl-qr { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .steps { grid-template-columns: 1fr; gap: 40px; }
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .conference-strip { flex-direction: column; align-items: flex-start; gap: 12px; }
}
@media (max-width: 600px) {
  .hero-stats { gap: 12px; }
  .stat-sep { display: none; }
  .footer-grid { grid-template-columns: 1fr; }
  .proof-strip { justify-content: flex-start; }
  .proof-dot { display: none; }
}

/* ─── PHOTO STEPS ────────────────────────────────────────────────────────── */
.steps-photo {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.step-photo-card {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.step-photo-img {
  position: relative;
  border-radius: var(--r-xl);
  overflow: hidden;
  aspect-ratio: 4/3;
}
.step-photo-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.step-photo-card:hover .step-photo-img img {
  transform: scale(1.03);
}
.step-badge {
  position: absolute;
  top: 16px;
  left: 16px;
  background: var(--black);
  color: var(--white);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 1px;
  padding: 6px 14px;
  border-radius: 50px;
}
.step-photo-card h3 {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.03em;
}
.step-photo-card p {
  font-size: 15px;
  color: var(--gray-600);
  line-height: 1.7;
}
@media (max-width: 960px) {
  .steps-photo { grid-template-columns: 1fr; }
}