@import url('https://fonts.googleapis.com/css2?family=Instrument+Serif:ital@0;1&family=DM+Sans:ital,opsz,wght@0,9..40,200;0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;1,9..40,300;1,9..40,400&display=swap');

:root {
  --bg: #f5f2ed;
  --bg2: #edeae4;
  --bg3: #e8e4de;
  --surface: #faf8f4;
  --surface2: #f0ede8;
  --border: rgba(26,24,18,0.1);
  --border2: rgba(26,24,18,0.18);
  --ink: #1a1812;
  --ink2: rgba(26,24,18,0.85);
  --ink3: rgba(26,24,18,0.62);
  --ink4: rgba(26,24,18,0.35);
  --sage: #4a7c5f;
  --sage2: #6b9e80;
  --sage-dim: rgba(74,124,95,0.12);
  --sage-glow: rgba(74,124,95,0.25);
  --amber: #c8843a;
  --coral: #e05c3a;
  --sky: #3a7bc8;
  --muted: rgba(26,24,18,0.4);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  background: var(--bg);
  color: var(--ink);
  font-family: 'DM Sans', sans-serif;
  font-weight: 400;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* ── SCROLLBAR ── */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border2); border-radius: 2px; }

/* ── NAV ── */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 200;
  padding: 1.25rem 3rem;
  display: flex; align-items: center; justify-content: space-between;
  transition: background 0.4s, border-color 0.4s;
}
nav.scrolled {
  background: rgba(245,242,237,0.95);
  backdrop-filter: blur(24px);
  border-bottom: 1px solid var(--border);
}
.logo {
  font-family: 'Instrument Serif', serif;
  font-size: 1.35rem;
  color: var(--ink);
  display: flex; align-items: center; gap: 0.6rem;
  text-decoration: none; letter-spacing: -0.01em;
}
.logo-dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--sage);
  box-shadow: 0 0 8px var(--sage-glow);
  animation: pulse 2.5s ease-in-out infinite;
}
@keyframes pulse { 0%,100%{opacity:1;transform:scale(1)} 50%{opacity:0.5;transform:scale(0.85)} }

.nav-links { display: flex; gap: 2.5rem; list-style: none; }
.nav-links a {
  color: var(--ink3);
  text-decoration: none;
  font-size: 0.82rem;
  font-weight: 400;
  letter-spacing: 0.01em;
  transition: color 0.2s;
  position: relative;
}
.nav-links a::after {
  content: '';
  position: absolute; bottom: -4px; left: 0; right: 0;
  height: 1px; background: var(--sage);
  transform: scaleX(0); transform-origin: left;
  transition: transform 0.25s ease;
}
.nav-links a:hover { color: var(--ink); }
.nav-links a:hover::after, .nav-links a.active::after { transform: scaleX(1); }
.nav-links a.active { color: var(--ink); }

.nav-right { display: flex; align-items: center; gap: 1rem; }
.nav-login {
  color: var(--ink3); font-size: 0.82rem; text-decoration: none;
  transition: color 0.2s; font-weight: 400;
}
.nav-login:hover { color: var(--ink); }
.nav-cta {
  background: var(--sage);
  color: #fff;
  font-size: 0.82rem; font-weight: 500;
  padding: 0.6rem 1.4rem;
  border-radius: 100px;
  text-decoration: none;
  transition: background 0.2s, transform 0.15s, box-shadow 0.2s;
  letter-spacing: 0.01em;
}
.nav-cta:hover {
  background: var(--sage2);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px var(--sage-glow);
}
.hamburger {
  display: none; background: none; border: none; cursor: pointer;
  padding: 0.4rem; flex-direction: column; gap: 5px;
  align-items: center; justify-content: center;
}
.hamburger span { display: block; width: 22px; height: 1.5px; background: var(--ink); border-radius: 2px; transition: all 0.3s; }

.mob-menu {
  display: none; position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: var(--bg); z-index: 300;
  flex-direction: column; align-items: center; justify-content: center; gap: 2rem;
}
.mob-menu.open { display: flex; }
.mob-menu-close {
  position: absolute; top: 1.5rem; right: 1.5rem;
  background: none; border: none; font-size: 1.6rem; cursor: pointer; color: var(--ink3);
}
.mob-menu a {
  font-family: 'Instrument Serif', serif;
  font-size: 2.2rem; color: var(--ink3); text-decoration: none;
  transition: color 0.2s;
}
.mob-menu a:hover, .mob-menu a.active { color: var(--ink); }
.mob-menu-cta {
  background: var(--sage) !important;
  color: #fff !important;
  font-family: 'DM Sans', sans-serif !important;
  font-size: 1rem !important; font-weight: 500;
  padding: 0.9rem 2.5rem; border-radius: 100px;
  text-decoration: none; margin-top: 1rem;
}

/* ── COMMON ── */
section { padding: 8rem 2rem; }
.container { max-width: 1100px; margin: 0 auto; }
.eyebrow {
  font-size: 0.68rem; font-weight: 500;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--sage); margin-bottom: 1.2rem;
  display: flex; align-items: center; gap: 0.6rem;
}
.eyebrow::before {
  content: ''; display: block;
  width: 20px; height: 1px; background: var(--sage);
}
.section-title {
  font-family: 'Instrument Serif', serif;
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  font-weight: 400; line-height: 1.1;
  letter-spacing: -0.02em; color: var(--ink);
  margin-bottom: 1.2rem;
}
.section-title em { font-style: italic; color: var(--sage2); }
.section-sub {
  font-size: 0.95rem; color: var(--ink3);
  max-width: 540px; line-height: 1.85; font-weight: 300;
}

/* buttons */
.btn-primary {
  background: var(--sage); color: #fff;
  font-size: 0.88rem; font-weight: 500;
  padding: 0.85rem 2rem; border-radius: 100px;
  text-decoration: none; display: inline-block;
  transition: background 0.2s, transform 0.15s, box-shadow 0.2s;
  letter-spacing: 0.01em;
}
.btn-primary:hover {
  background: var(--sage2); transform: translateY(-2px);
  box-shadow: 0 8px 24px var(--sage-glow);
}
.btn-outline {
  border: 1px solid var(--border2); color: var(--ink2);
  font-size: 0.88rem; font-weight: 400;
  padding: 0.85rem 2rem; border-radius: 100px;
  text-decoration: none; display: inline-block;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}
.btn-outline:hover { border-color: var(--ink3); color: var(--ink); background: rgba(255,255,255,0.04); }
.btn-row { display: flex; gap: 1rem; flex-wrap: wrap; align-items: center; }

/* cards */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px; padding: 2rem;
}

/* ── SCROLL REVEAL ── */
.reveal {
  opacity: 0; transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible { opacity: 1; transform: none; }
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ── HERO ── */
.hero {
  min-height: 100vh;
  display: grid; grid-template-columns: 1fr 1fr;
  align-items: center; gap: 4rem;
  padding: 10rem 5rem 6rem;
  max-width: 1300px; margin: 0 auto;
  position: relative;
}
.hero::before {
  content: '';
  position: absolute; top: 0; right: 0;
  width: 50%; height: 100%;
  background: radial-gradient(ellipse at 60% 40%, rgba(74,124,95,0.05) 0%, transparent 70%);
  pointer-events: none;
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 0.5rem;
  border: 1px solid rgba(90,158,114,0.25);
  color: var(--sage2); font-size: 0.68rem; font-weight: 500;
  letter-spacing: 0.12em; text-transform: uppercase;
  padding: 0.4rem 1rem; border-radius: 100px;
  margin-bottom: 2.5rem;
  background: rgba(90,158,114,0.06);
}
.hero-badge-dot {
  width: 5px; height: 5px; border-radius: 50%;
  background: var(--sage); animation: pulse 2s infinite;
}
h1 {
  font-family: 'Instrument Serif', serif;
  font-size: clamp(3.2rem, 5.5vw, 5.5rem);
  font-weight: 400; line-height: 1.02;
  letter-spacing: -0.03em; color: var(--ink);
  margin-bottom: 1.6rem;
}
h1 em { font-style: italic; color: var(--sage2); }
.hero-p {
  font-size: 1rem; color: var(--ink3);
  max-width: 440px; line-height: 1.85;
  font-weight: 300; margin-bottom: 2.5rem;
}
.trust-row {
  display: flex; align-items: center; gap: 1.5rem;
  margin-top: 2.5rem; padding-top: 2rem;
  border-top: 1px solid var(--border);
  flex-wrap: wrap;
}
.trust-item {
  display: flex; align-items: center; gap: 0.5rem;
  font-size: 0.78rem; color: var(--ink3); font-weight: 300;
}
.trust-dot {
  width: 5px; height: 5px; border-radius: 50%;
  background: var(--sage); opacity: 0.7;
}

/* ── HERO RIGHT — METRICS DISPLAY ── */
.hero-right { position: relative; display: flex; align-items: center; justify-content: center; }
.metrics-cluster {
  position: relative; width: 340px; height: 420px;
}
.metric-float {
  position: absolute;
  background: var(--surface);
  border: 1px solid var(--border2);
  border-radius: 16px; padding: 1.1rem 1.3rem;
  box-shadow: 0 20px 60px rgba(0,0,0,0.4);
  animation: float 6s ease-in-out infinite;
}
.metric-float:nth-child(2) { animation-delay: -2s; animation-duration: 7s; }
.metric-float:nth-child(3) { animation-delay: -4s; animation-duration: 5.5s; }
@keyframes float { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-10px)} }
.mf-top { top: 0; left: 0; width: 155px; }
.mf-mid { top: 120px; right: 0; width: 165px; }
.mf-bot { bottom: 30px; left: 20px; width: 150px; }
.mf-label {
  font-size: 0.6rem; font-weight: 500; text-transform: uppercase;
  letter-spacing: 0.1em; color: var(--ink3); margin-bottom: 0.3rem;
}
.mf-val {
  font-family: 'Instrument Serif', serif;
  font-size: 1.8rem; color: var(--ink); line-height: 1;
  margin-bottom: 0.2rem;
}
.mf-sub { font-size: 0.65rem; color: var(--sage2); }
.mf-bar { height: 2px; background: var(--surface2); border-radius: 1px; margin-top: 0.6rem; overflow: hidden; }
.mf-bar-fill { height: 100%; background: linear-gradient(90deg, var(--sage), var(--sage2)); border-radius: 1px; }
.metrics-glow {
  position: absolute; top: 50%; left: 50%;
  transform: translate(-50%,-50%);
  width: 200px; height: 200px;
  background: radial-gradient(circle, var(--sage-glow) 0%, transparent 70%);
  pointer-events: none; z-index: 0;
}

/* ── STATS BAND ── */
.stats-band {
  background: var(--bg2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 4rem 2rem;
}
.stats-grid {
  display: grid; grid-template-columns: repeat(3,1fr);
  gap: 2px;
  max-width: 1100px; margin: 0 auto;
}
.stat-item {
  padding: 2.5rem 3rem; text-align: center;
  border-right: 1px solid var(--border);
}
.stat-item:last-child { border-right: none; }
.stat-num {
  font-family: 'Instrument Serif', serif;
  font-size: 3.8rem; color: var(--sage2); line-height: 1;
  margin-bottom: 0.5rem; letter-spacing: -0.02em;
}
.stat-label { font-size: 0.83rem; color: var(--ink3); line-height: 1.65; font-weight: 300; }

/* ── PROBLEM ── */
.problem { background: var(--bg); padding: 9rem 2rem; }
.problem-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 6rem; align-items: start; margin-top: 5rem;
}
.problem-item { padding-bottom: 3rem; border-bottom: 1px solid var(--border); margin-bottom: 3rem; }
.problem-item:last-child { border-bottom: none; margin-bottom: 0; padding-bottom: 0; }
.problem-num {
  font-family: 'Instrument Serif', serif;
  font-size: 3rem; color: var(--surface2); line-height: 1;
  margin-bottom: 1rem; letter-spacing: -0.02em;
}
.problem-title { font-size: 1rem; font-weight: 500; color: var(--ink); margin-bottom: 0.5rem; }
.problem-desc { font-size: 0.85rem; color: var(--ink3); line-height: 1.75; font-weight: 300; }
.problem-right { position: sticky; top: 8rem; }
.problem-visual {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px; padding: 2rem;
  overflow: hidden;
}
.pv-header {
  font-size: 0.7rem; font-weight: 500; color: var(--ink3);
  letter-spacing: 0.08em; text-transform: uppercase;
  margin-bottom: 1.5rem; padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}
.pv-event {
  display: flex; align-items: flex-start; gap: 0.8rem;
  padding: 0.9rem 0; border-bottom: 1px solid var(--border);
}
.pv-event:last-child { border-bottom: none; }
.pv-dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; margin-top: 3px; }
.pv-dot.green { background: var(--sage); box-shadow: 0 0 6px var(--sage-glow); }
.pv-dot.amber { background: var(--amber); }
.pv-dot.red { background: var(--coral); }
.pv-title { font-size: 0.82rem; color: var(--ink2); margin-bottom: 0.15rem; font-weight: 400; }
.pv-time { font-size: 0.68rem; color: var(--ink3); font-weight: 300; }

/* ── HOW IT WORKS ── */
.how { background: var(--bg2); padding: 9rem 2rem; }
.steps {
  display: grid; grid-template-columns: repeat(4,1fr);
  gap: 0; margin-top: 5rem;
  border: 1px solid var(--border); border-radius: 20px;
  overflow: hidden;
}
.step {
  padding: 2.5rem 2rem;
  border-right: 1px solid var(--border);
  transition: background 0.3s;
  position: relative;
}
.step:last-child { border-right: none; }
.step:hover { background: var(--surface); }
.step-num {
  font-family: 'Instrument Serif', serif;
  font-size: 3rem; color: var(--border2);
  line-height: 1; margin-bottom: 1.5rem;
  transition: color 0.3s;
}
.step:hover .step-num { color: var(--sage-dim); }
.step-icon { font-size: 1.4rem; margin-bottom: 1rem; }
.step-title { font-size: 0.88rem; font-weight: 500; color: var(--ink); margin-bottom: 0.6rem; }
.step-desc { font-size: 0.8rem; color: var(--ink3); line-height: 1.7; font-weight: 300; }

/* ── SOCIAL PROOF ── */
.proof { background: var(--bg); padding: 9rem 2rem; }
.proof-grid {
  display: grid; grid-template-columns: repeat(3,1fr);
  gap: 1.5rem; margin-top: 4rem;
}
.proof-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px; padding: 2rem;
  transition: border-color 0.3s, transform 0.3s;
  cursor: default;
}
.proof-card:hover { border-color: var(--border2); transform: translateY(-4px); }
.proof-stars { color: var(--sage); font-size: 0.75rem; letter-spacing: 0.1em; margin-bottom: 1rem; }
.proof-quote {
  font-size: 0.88rem; color: var(--ink2); line-height: 1.8;
  font-style: italic; margin-bottom: 1.5rem; font-weight: 300;
}
.proof-author { display: flex; align-items: center; gap: 0.75rem; }
.proof-avatar {
  width: 34px; height: 34px; border-radius: 50%;
  background: var(--surface2);
  border: 1px solid var(--border2);
  display: flex; align-items: center; justify-content: center;
  font-family: 'Instrument Serif', serif; font-size: 0.9rem; color: var(--ink2);
}
.proof-name { font-size: 0.82rem; font-weight: 500; color: var(--ink); }
.proof-role { font-size: 0.72rem; color: var(--ink3); margin-top: 0.1rem; }

/* ── CTA ── */
.cta-section {
  background: var(--bg2); padding: 9rem 2rem; text-align: center;
  position: relative; overflow: hidden;
}
.cta-section::before {
  content: '';
  position: absolute; top: 0; left: 50%; transform: translateX(-50%);
  width: 600px; height: 300px;
  background: radial-gradient(ellipse, rgba(90,158,114,0.1) 0%, transparent 70%);
  pointer-events: none;
}
.cta-section .section-title { color: var(--ink); }
.cta-section .section-sub { color: var(--ink3); margin: 0 auto 2.5rem; }
.device-chips {
  display: flex; justify-content: center;
  align-items: center; gap: 1rem; flex-wrap: wrap;
  margin-top: 3rem;
}
.device-chip {
  display: flex; align-items: center; gap: 0.5rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 100px; padding: 0.45rem 1rem;
  font-size: 0.78rem; color: var(--ink3); font-weight: 300;
  transition: border-color 0.2s;
}
.device-chip:hover { border-color: var(--border2); }
.device-chip.coming {
  border-color: rgba(90,158,114,0.2);
  color: var(--sage2);
  background: rgba(90,158,114,0.06);
}

/* ── FOOTER ── */
footer {
  background: #1a1812;
  border-top: 1px solid var(--border);
  padding: 4rem 2rem 3rem;
}
.footer-inner {
  max-width: 1100px; margin: 0 auto;
  display: grid; grid-template-columns: 1fr auto;
  gap: 3rem; align-items: start;
  padding-bottom: 3rem;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  margin-bottom: 2rem;
}
.footer-brand .logo { margin-bottom: 0.8rem; color: rgba(255,255,255,0.7) !important; }
.footer-links-grid { display: flex; gap: 3rem; }
.footer-bottom {
  max-width: 1100px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 1rem;
}
.footer-tagline { font-size: 0.8rem; color: rgba(255,255,255,0.35); font-weight: 300; max-width: 240px; line-height: 1.6; }
.footer-col-title { font-size: 0.68rem; font-weight: 500; letter-spacing: 0.1em; text-transform: uppercase; color: rgba(255,255,255,0.3); margin-bottom: 1rem; }
.footer-col a {
  display: block; color: rgba(255,255,255,0.35); text-decoration: none;
  font-size: 0.82rem; font-weight: 300; margin-bottom: 0.6rem;
  transition: color 0.2s;
}
.footer-col a:hover { color: rgba(255,255,255,0.7); }
.footer-legal { font-size: 0.75rem; color: rgba(255,255,255,0.2); }
.footer-legal a { color: rgba(255,255,255,0.2); text-decoration: none; margin: 0 0.4rem; transition: color 0.2s; }
.footer-legal a:hover { color: rgba(255,255,255,0.4); }

/* ── PAGE HERO ── */
.page-hero {
  padding: 11rem 2rem 6rem; text-align: center;
  max-width: 800px; margin: 0 auto;
}
.page-hero .section-sub { margin: 0 auto; }

/* ── METRIC CARDS ── */
.metric-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 16px; padding: 2rem; margin-bottom: 1.5rem;
  transition: border-color 0.2s, transform 0.2s;
}
.metric-card:hover { border-color: var(--border2); transform: translateX(4px); }
.metric-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 0.8rem; }
.metric-name { font-size: 0.88rem; font-weight: 500; color: var(--ink); }
.metric-badge {
  font-size: 0.62rem; font-weight: 600; letter-spacing: 0.06em;
  text-transform: uppercase; padding: 0.2rem 0.6rem; border-radius: 100px;
}
.metric-badge.high { background: rgba(90,158,114,0.15); color: var(--sage2); }
.metric-badge.med { background: rgba(232,164,74,0.15); color: var(--amber); }
.metric-desc { font-size: 0.82rem; color: var(--ink3); line-height: 1.7; margin-bottom: 0.8rem; font-weight: 300; }
.metric-signal { font-size: 0.76rem; color: var(--sage2); font-style: italic; }

/* ── ALERT TIERS ── */
.alert-tier {
  display: flex; gap: 1rem; align-items: flex-start;
  padding: 1.1rem; border-radius: 12px; margin-bottom: 0.75rem;
}
.at-1 { background: rgba(90,158,114,0.07); border: 1px solid rgba(90,158,114,0.15); }
.at-2 { background: rgba(74,158,212,0.07); border: 1px solid rgba(74,158,212,0.15); }
.at-3 { background: rgba(232,164,74,0.07); border: 1px solid rgba(232,164,74,0.15); }
.at-4 { background: rgba(224,92,58,0.07); border: 1px solid rgba(224,92,58,0.15); }
.at-5 { background: rgba(200,0,0,0.07); border: 1px solid rgba(200,0,0,0.15); }
.at-icon {
  width: 32px; height: 32px; border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.85rem; flex-shrink: 0;
}
.at-1 .at-icon { background: rgba(90,158,114,0.15); }
.at-2 .at-icon { background: rgba(74,158,212,0.15); }
.at-3 .at-icon { background: rgba(232,164,74,0.15); }
.at-4 .at-icon { background: rgba(224,92,58,0.15); }
.at-5 .at-icon { background: rgba(200,0,0,0.15); }
.at-label {
  font-size: 0.68rem; font-weight: 600; letter-spacing: 0.08em;
  text-transform: uppercase; margin-bottom: 0.2rem;
}
.at-1 .at-label { color: var(--sage2); }
.at-2 .at-label { color: var(--sky); }
.at-3 .at-label { color: var(--amber); }
.at-4 .at-label { color: var(--coral); }
.at-5 .at-label { color: #e03030; }
.at-msg { font-size: 0.8rem; color: var(--ink2); line-height: 1.55; font-style: italic; font-weight: 300; }

/* ── SPECS GRID ── */
.specs-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(200px,1fr));
  gap: 1px; background: var(--border);
  border: 1px solid var(--border); border-radius: 16px;
  overflow: hidden; margin-top: 4rem;
}
.spec-item {
  background: var(--surface); padding: 2.5rem 2rem;
  transition: background 0.2s;
}
.spec-item:hover { background: var(--surface2); }
.spec-icon {
  width: 32px; height: 32px; border-radius: 8px;
  background: var(--sage-dim); border: 1px solid rgba(90,158,114,0.2);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.85rem; margin-bottom: 1.5rem;
}
.spec-name {
  font-size: 0.7rem; font-weight: 500; color: var(--ink3);
  letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 0.4rem;
}
.spec-val {
  font-family: 'Instrument Serif', serif;
  font-size: 1.4rem; color: var(--ink); line-height: 1.2; margin-bottom: 0.3rem;
}
.spec-note { font-size: 0.75rem; color: var(--ink3); font-weight: 300; }

/* ── DEVICE BAND ── */
.device-stage { position: relative; width: 340px; height: 460px; }
.device-band {
  position: absolute; left: 50%; top: 50%; transform: translate(-50%,-50%);
  width: 110px; height: 300px;
  background: linear-gradient(160deg, #2a2a2a 0%, #111 40%, #0d0d0d 100%);
  border-radius: 36px;
  box-shadow: 0 40px 80px rgba(0,0,0,0.5), inset 0 1px 0 rgba(255,255,255,0.06);
  display: flex; flex-direction: column;
  align-items: center; justify-content: space-between; padding: 22px 14px;
}
.band-indicator {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--sage); box-shadow: 0 0 10px var(--sage-glow);
  animation: pulse 2s infinite;
}
.band-logo {
  font-family: 'DM Sans', sans-serif; font-size: 0.55rem;
  color: rgba(255,255,255,0.2); letter-spacing: 0.12em;
}
.band-bottom { display: flex; flex-direction: column; align-items: center; gap: 5px; }
.band-sensor { width: 22px; height: 3px; background: rgba(255,255,255,0.05); border-radius: 2px; }
.band-sensor:nth-child(2) { width: 14px; }
.strap-top {
  position: absolute; left: 50%; top: calc(50% - 215px);
  transform: translateX(-50%); width: 72px; height: 110px;
  border-radius: 10px 10px 0 0;
  background: linear-gradient(180deg, #d4c9b8 0%, #c4b8a4 100%);
}
.strap-bottom {
  position: absolute; left: 50%; top: calc(50% + 140px);
  transform: translateX(-50%); width: 72px; height: 110px;
  border-radius: 0 0 18px 18px;
  background: linear-gradient(180deg, #c4b8a4 0%, #d4c9b8 100%);
}
.float-card {
  position: absolute; background: var(--surface);
  border: 1px solid var(--border2); border-radius: 14px;
  padding: 0.9rem 1.1rem;
  box-shadow: 0 12px 40px rgba(0,0,0,0.4);
}
.float-card.card-hrv { left: -55px; top: 55px; width: 135px; }
.float-card.card-sleep { right: -50px; top: 100px; width: 140px; }
.float-card.card-gait { left: -45px; bottom: 80px; width: 125px; }
.fc-label { font-size: 0.6rem; font-weight: 500; color: var(--ink3); letter-spacing: 0.06em; text-transform: uppercase; margin-bottom: 0.25rem; }
.fc-val { font-family: 'Instrument Serif', serif; font-size: 1.5rem; color: var(--ink); line-height: 1; }
.fc-sub { font-size: 0.65rem; color: var(--sage2); margin-top: 0.15rem; }
.fc-bar { height: 2px; background: var(--surface2); border-radius: 1px; margin-top: 0.5rem; overflow: hidden; }
.fc-bar-fill { height: 100%; border-radius: 1px; background: linear-gradient(90deg, var(--sage), var(--sage2)); }
.ring {
  position: absolute; left: 50%; top: 50%;
  transform: translate(-50%,-50%); border-radius: 50%;
  border: 1px solid rgba(90,158,114,0.06);
}
.ring1 { width: 280px; height: 280px; animation: spin 25s linear infinite; }
.ring2 { width: 400px; height: 400px; animation: spin 40s linear infinite reverse; }
@keyframes spin { from{transform:translate(-50%,-50%) rotate(0deg)} to{transform:translate(-50%,-50%) rotate(360deg)} }

/* ── RESPONSIVE ── */
@media(max-width: 900px) {
  nav { padding: 1rem 1.5rem; }
  .nav-links, .nav-right .nav-login { display: none; }
  .hamburger { display: flex; }
  section { padding: 5rem 1.5rem; }
  .page-hero { padding: 8rem 1.5rem 3.5rem; }
  h1 { font-size: 2.8rem; }
  .btn-row { flex-direction: column; align-items: flex-start; }
  .float-card, .device-stage { display: none !important; }
  .stats-grid { grid-template-columns: 1fr; gap: 0; }
  .stat-item { border-right: none; border-bottom: 1px solid var(--border); }
  .stat-item:last-child { border-bottom: none; }
  .proof-grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr 1fr; }
  .step { border-bottom: 1px solid var(--border); }
  .footer-inner { grid-template-columns: 1fr; }
  .footer-links-grid { flex-wrap: wrap; gap: 2rem; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .metrics-cluster { display: none; }
  [style*="grid-template-columns:1fr 1fr"],
  [style*="grid-template-columns: 1fr 1fr"] { grid-template-columns: 1fr !important; gap: 2rem !important; }
  [style*="grid-template-columns:repeat(3,1fr)"],
  [style*="grid-template-columns: repeat(3,1fr)"] { grid-template-columns: 1fr !important; }
  [style*="grid-template-columns:repeat(2,1fr)"],
  [style*="grid-template-columns: repeat(2,1fr)"] { grid-template-columns: 1fr !important; }
  [style*="position:sticky"] { position: static !important; }
  .problem-grid { grid-template-columns: 1fr !important; }
}

@media(max-width: 480px) {
  nav { padding: 0.9rem 1rem; }
  h1 { font-size: 2.2rem; }
  .section-title { font-size: 1.8rem; }
  section { padding: 4rem 1rem; }
  .page-hero { padding: 7rem 1rem 2.5rem; }
  .steps { grid-template-columns: 1fr; }
  .stat-num { font-size: 3rem; }
  .hero { padding: 7rem 1.5rem 3rem; grid-template-columns: 1fr; }
}