/* LightClock landing page
   Files: index.html + styles.css + main.js
   Assets (same folder): ./googlePlay.png ./appleStore.png ./appScreen.jpg
*/
:root{
  --bg: #ffffff;
  --surface: rgba(255,255,255,0.75);
  --text: #0b0f14;
  --muted: rgba(11,15,20,0.65);
  --line: rgba(11,15,20,0.12);
  --shadow: 0 18px 50px rgba(11,15,20,0.14);
  --shadow-soft: 0 10px 30px rgba(11,15,20,0.12);
  --radius: 18px;
  --radius-lg: 28px;
  --green: #bff3b6;
  --green-2: #d8f7d1;
  --accent: #0b0f14;
  --link: #0b0f14;
  --container: 1120px;
  --focus: 2px solid rgba(0,0,0,0.55);
}

[data-theme="dark"]{
  --bg: #0b0f14;
  --surface: rgba(255,255,255,0.06);
  --text: rgba(255,255,255,0.92);
  --muted: rgba(255,255,255,0.65);
  --line: rgba(255,255,255,0.14);
  --shadow: 0 18px 50px rgba(0,0,0,0.55);
  --shadow-soft: 0 10px 30px rgba(0,0,0,0.45);
  --green: #1f7a42;
  --green-2: #1a5e35;
  --accent: rgba(255,255,255,0.92);
  --link: rgba(255,255,255,0.92);
  --focus: 2px solid rgba(255,255,255,0.55);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

img{max-width:100%;height:auto;display:block}
a{color:var(--link);text-decoration:none}
a:hover{text-decoration:underline}
.container{max-width:var(--container);margin:0 auto;padding:0 20px}

.skip{
  position:absolute;left:-999px;top:auto;width:1px;height:1px;overflow:hidden
}
.skip:focus{
  left:20px;top:20px;width:auto;height:auto;z-index:9999;
  background:var(--bg);border:1px solid var(--line);padding:10px 12px;border-radius:12px;
  outline: var(--focus);
}

/* Header */
.site-header{
  position:sticky;top:0;z-index:1000;
  backdrop-filter: blur(12px);
  background: rgba(255,255,255,0.65);
  border-bottom: 1px solid var(--line);
  transition: box-shadow .18s ease, background .18s ease;
}
[data-theme="dark"] .site-header{
  background: rgba(11,15,20,0.55);
}
.site-header[data-elevated="true"]{
  box-shadow: var(--shadow-soft);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  min-height: 72px;
}
.brand{display:flex;align-items:center;gap:12px;font-weight:800}
.brand-name{letter-spacing:-0.02em}
.logo-svg{
  height: 28px;
  width: auto;
  display: block;
}
.nav{display:flex;align-items:center;gap:12px}
.nav{display:flex;align-items:center;gap:12px}
.nav-links{display:flex;align-items:center;gap:22px}
.nav a{font-weight:600;color:var(--text);opacity:.9}
.nav a.active{text-decoration:underline}
.nav a.pill{
  padding:10px 14px;border-radius:999px;border:1px solid var(--line);
  background: var(--surface);
  text-decoration:none;
}
.nav a.pill:hover{box-shadow: var(--shadow-soft);text-decoration:none}

.nav-toggle{
  display:none;
  width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
  background: var(--surface);
}
.nav-toggle span{
  display:block;width:18px;height:2px;margin:4px auto;background: var(--text);border-radius:2px;
}

@media (max-width: 840px){
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  .nav-links{
    position:absolute;right:20px;top:72px;
    flex-direction:column;align-items:stretch;
    width:min(320px, calc(100vw - 40px));
    padding:14px;border-radius:16px;border:1px solid var(--line);
    background: var(--bg);
    box-shadow: var(--shadow);
    transform: translateY(-8px);
    opacity:0;pointer-events:none;
    transition: opacity .16s ease, transform .16s ease;
  }
  .nav-links[data-open="true"]{
    opacity:1;pointer-events:auto;transform: translateY(0);
  }
  .nav-links a{padding:10px 10px;border-radius:12px}
  .nav-links a:hover{text-decoration:none;background: var(--surface)}
}

/* Hero */
.hero{position:relative;padding: 78px 0 44px;overflow:hidden}
.hero-bg{
  position:absolute;inset:0;
  background: linear-gradient(180deg, var(--green) 0%, var(--green-2) 70%, transparent 71%);
}
.hero-grid{
  position:relative;
  display:grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 46px;
  align-items:center;
}
.kicker{
  display:inline-flex;align-items:center;gap:10px;
  padding:8px 12px;border-radius:999px;border:1px solid var(--line);
  background: rgba(255,255,255,0.55);
  font-weight:600;font-size:14px;
}
[data-theme="dark"] .kicker{background: rgba(0,0,0,0.15)}
.hero h1{
  margin:18px 0 12px;
  font-size: clamp(40px, 4.2vw, 64px);
  line-height: 1.04;
  letter-spacing: -0.03em;
}
.lead{font-size: 17px;color: var(--muted);max-width: 58ch;margin:0 0 18px}

.store-row{display:flex;gap:14px;flex-wrap:wrap;align-items:center;margin: 12px 0 14px}
.store-btn{
  display:inline-flex;align-items:center;justify-content:center;
  border-radius: 14px;border:1px solid var(--line);
  background: rgba(255,255,255,0.75);
  padding: 10px 12px;
  box-shadow: 0 10px 18px rgba(11,15,20,0.10);
  transition: transform .14s ease, box-shadow .14s ease;
}
[data-theme="dark"] .store-btn{background: rgba(0,0,0,0.18)}
.store-btn:hover{transform: translateY(-2px);box-shadow: var(--shadow-soft);text-decoration:none}
.store-btn img{height:44px;width:auto}

.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top: 14px}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding: 12px 16px;border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--text);
  font-weight: 700;
  cursor:pointer;
  transition: transform .14s ease, box-shadow .14s ease, background .14s ease;
}
.btn:hover{transform: translateY(-1px);box-shadow: var(--shadow-soft);text-decoration:none}
.btn:focus{outline: var(--focus);outline-offset: 2px}
.btn.primary{
  background: var(--text);
  color: var(--bg);
  border-color: transparent;
}
.btn.ghost{background: transparent}
.btn.link{border-color: transparent;background: transparent;padding-left:0;padding-right:0}
.btn.small{padding:10px 14px;font-weight:700}

.trust{
  display:flex;gap:18px;flex-wrap:wrap;
  margin-top: 18px;
}
.trust-item{
  min-width: 150px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.50);
  border-radius: 16px;
}
[data-theme="dark"] .trust-item{background: rgba(0,0,0,0.18)}
.trust-num{font-size:22px;font-weight:800}
.trust-suffix{margin-left:6px;font-weight:800}
.trust-label{display:block;color:var(--muted);font-size:13px;margin-top:2px}

/* Media */
.phone-frame{
  position:relative;
  margin-inline:auto;
  width: min(380px, 90%);
  border-radius: var(--radius-lg);
  padding: 14px;
  background: rgba(255,255,255,0.66);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}
[data-theme="dark"] .phone-frame{background: rgba(0,0,0,0.16)}
.app-shot{
  border-radius: 22px;
  box-shadow: 0 22px 50px rgba(11,15,20,0.18);
}
.floating-badges{position:absolute;inset:0;pointer-events:none}
.badge{
  position:absolute;
  padding:10px 12px;border-radius:999px;border:1px solid var(--line);
  background: rgba(255,255,255,0.80);
  font-weight:700;
  box-shadow: var(--shadow-soft);
  transform: translateZ(0);
  animation: floaty 6.5s ease-in-out infinite;
}
[data-theme="dark"] .badge{background: rgba(0,0,0,0.26)}
.badge:nth-child(1){left: 0; top: 16%; animation-delay: .2s}
.badge:nth-child(2){right: -2%; top: 44%; animation-delay: 1.2s}
.badge:nth-child(3){left: 6%; bottom: 10%; animation-delay: 2.1s}

@keyframes floaty{
  0%,100%{transform: translateY(0)}
  50%{transform: translateY(-10px)}
}

@media (max-width: 920px){
  .hero-grid{grid-template-columns:1fr;gap:26px}
  .hero{padding-top: 64px}
}

/* Sections */
.section{padding: 56px 0}
.section.alt{background: linear-gradient(180deg, transparent 0%, rgba(11,15,20,0.03) 100%)}
[data-theme="dark"] .section.alt{background: linear-gradient(180deg, transparent 0%, rgba(255,255,255,0.04) 100%)}

.section-head h2{
  margin:0;
  font-size: 34px;
  letter-spacing: -0.02em;
}
.section-head p{margin:10px 0 0;max-width: 68ch}
.muted{color:var(--muted)}

.cards{
  margin-top: 26px;
  display:grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}
.card{
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 18px 16px;
  box-shadow: 0 10px 30px rgba(11,15,20,0.08);
}
.card h3{margin:12px 0 6px;font-size:18px}
.card p{margin:0;color:var(--muted)}
.icon{font-size:20px;width:40px;height:40px;border-radius:12px;display:flex;align-items:center;justify-content:center;border:1px solid var(--line)}
.bullets{margin:12px 0 0;padding-left: 18px;color: var(--muted)}
.bullets li{margin:6px 0}

@media (max-width: 1000px){
  .cards{grid-template-columns: repeat(2, minmax(0, 1fr))}
}
@media (max-width: 560px){
  .cards{grid-template-columns:1fr}
}

/* Split */
.split{display:grid;grid-template-columns: 1.1fr 0.9fr;gap: 20px;align-items:center}
.split-copy h2{margin:0;font-size:34px;letter-spacing:-0.02em}
.checklist{display:grid;gap:10px;margin:16px 0}
.check{padding:10px 12px;border-radius:14px;border:1px solid var(--line);background: var(--surface);font-weight:600}
.mini-cta{display:flex;gap:14px;flex-wrap:wrap;margin-top: 14px}

.panel{
  border:1px solid var(--line);
  border-radius: var(--radius-lg);
  background: rgba(255,255,255,0.70);
  padding: 18px;
  box-shadow: var(--shadow);
}
[data-theme="dark"] .panel{background: rgba(0,0,0,0.18)}
.panel-row{display:flex;align-items:center;justify-content:space-between;gap:12px;margin: 12px 0}
.panel-value{font-size: 22px}
.pill-tag{display:inline-flex;align-items:center;padding:6px 10px;border-radius:999px;border:1px solid var(--line);background: var(--surface);font-weight:700}
.panel-hint{margin: 12px 0 0;font-size: 13px}

@media (max-width: 920px){
  .split{grid-template-columns:1fr}
}
@media (max-width: 600px){
  .logo-svg{
    height: 24px;
  }
}
/* CTA */
.cta{
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
  padding: 26px;
  text-align:center;
  box-shadow: var(--shadow-soft);
}
.cta h2{margin:0;font-size:34px;letter-spacing:-0.02em}
.cta p{margin:10px 0 0}
.cta .store-row{justify-content:center}
.cta-meta{margin-top: 10px}
.cta-meta a{font-weight:700}

/* Footer */
.footer{border-top: 1px solid var(--line);padding: 26px 0}
.footer-inner{display:flex;align-items:center;justify-content:space-between;gap: 18px;flex-wrap:wrap}
.brand-inline{display:inline-flex;align-items:center;gap:10px;font-weight:800}
.footer-right{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.theme-toggle{
  padding:10px 12px;border-radius:999px;border:1px solid var(--line);
  background: var(--surface);
  font-weight:700;
  color: var(--text);
}

/* Reveal on scroll */
.reveal{
  opacity: 0;
  transform: translateY(14px);
  transition: opacity .55s ease, transform .55s ease;
}
.reveal.is-visible{
  opacity: 1;
  transform: translateY(0);
}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  .badge{animation:none}
  .reveal{opacity:1;transform:none}
  .store-btn:hover,.btn:hover{transform:none}
}

/* Toast */
.toast{
  position: fixed;
  left: 50%;
  bottom: 22px;
  transform: translateX(-50%);
  background: var(--text);
  color: var(--bg);
  padding: 10px 12px;
  border-radius: 999px;
  box-shadow: var(--shadow);
  max-width: min(520px, calc(100vw - 40px));
  font-weight: 700;
}
.footer-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
}

.footer-left{
  display:flex;
  align-items:center;
  gap:12px;
  flex-wrap:wrap;
  min-width: 260px;
}

.footer-left .muted{
  line-height: 1.2;
}

.brand-inline{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-weight:800;
}
.logo-svg{
  height: 24px;
  width: auto;
  display:block;
  flex: 0 0 auto;
}
.footer-right{
  display:flex;
  align-items:center;
  gap:16px;
  flex-wrap:wrap;
  justify-content:flex-end;
}