/* ============================================================
   AarthikAarambh — Marketing site
   Palette mirrors the Flutter app (app_colors.dart)
   ============================================================ */

:root {
  /* Brand */
  --teal: #2E7D7D;
  --teal-dark: #256868;
  --teal-light: #3A9696;
  --green: #00C853;
  --green-light: #69F0AE;
  --gold: #FF9800;
  --blue: #2962FF;
  --salmon: #DA8B81;

  /* Light surfaces */
  --bg: #F8FAFC;
  --bg-soft: #EEF3F3;
  --card: #FFFFFF;
  --border: #E2E8F0;
  --text: #1A1A1A;
  --text-2: #4A4A4A;
  --text-muted: #6B6B6B;

  --shadow-sm: 0 1px 2px rgba(16,24,40,.06), 0 1px 3px rgba(16,24,40,.08);
  --shadow-md: 0 8px 24px rgba(16,24,40,.08), 0 2px 6px rgba(16,24,40,.05);
  --shadow-lg: 0 24px 60px rgba(16,24,40,.14), 0 8px 24px rgba(16,24,40,.08);
  --shadow-glow: 0 30px 80px rgba(46,125,125,.28);

  --radius: 18px;
  --radius-lg: 28px;
  --maxw: 1180px;
  --ease: cubic-bezier(.22,.61,.36,1);

  --grad-brand: linear-gradient(120deg, var(--teal) 0%, var(--teal-light) 45%, var(--green) 100%);
  --grad-hero: radial-gradient(120% 120% at 15% 0%, #f3faf9 0%, var(--bg) 55%);
}

[data-theme="dark"] {
  --bg: #0E1414;
  --bg-soft: #141c1c;
  --card: #18201F;
  --border: #253230;
  --text: #FFFFFF;
  --text-2: #C8C8C8;
  --text-muted: #96a3a1;
  --shadow-sm: 0 1px 2px rgba(0,0,0,.4);
  --shadow-md: 0 10px 30px rgba(0,0,0,.45);
  --shadow-lg: 0 28px 70px rgba(0,0,0,.6);
  --grad-hero: radial-gradient(120% 120% at 15% 0%, #12201f 0%, var(--bg) 55%);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 90px; }
body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--grad-hero);
  color: var(--text);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  transition: background .4s var(--ease), color .3s var(--ease);
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
.container { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: 22px; }

/* ---- Background glows ---- */
.bg-glows { position: fixed; inset: 0; z-index: -1; pointer-events: none; overflow: hidden; }
.glow { position: absolute; border-radius: 50%; filter: blur(90px); opacity: .5; }
.glow-teal { width: 520px; height: 520px; background: var(--teal); top: -160px; left: -120px; opacity: .22; }
.glow-green { width: 440px; height: 440px; background: var(--green); top: 30%; right: -160px; opacity: .14; }
.glow-gold { width: 380px; height: 380px; background: var(--gold); bottom: -140px; left: 20%; opacity: .12; }
[data-theme="dark"] .glow-teal { opacity: .3; }

/* ============ BUTTONS ============ */
.btn {
  display: inline-flex; align-items: center; gap: 9px;
  font-weight: 600; border: none; cursor: pointer;
  border-radius: 999px; transition: transform .2s var(--ease), box-shadow .2s var(--ease), background .2s;
  white-space: nowrap;
}
.btn-sm { padding: 9px 18px; font-size: 14px; }
.btn-lg { padding: 15px 26px; font-size: 16px; }
.btn-primary {
  background: var(--grad-brand); color: #fff;
  box-shadow: 0 10px 24px rgba(46,125,125,.32);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 16px 34px rgba(46,125,125,.42); }
.btn-ghost {
  background: color-mix(in srgb, var(--card) 70%, transparent);
  color: var(--text); border: 1px solid var(--border);
  backdrop-filter: blur(10px);
}
.btn-ghost:hover { transform: translateY(-2px); border-color: var(--teal); color: var(--teal); }

/* ============ NAV ============ */
.nav {
  position: sticky; top: 0; z-index: 100;
  padding: 14px 0;
  transition: padding .3s var(--ease), background .3s, box-shadow .3s, border-color .3s;
  border-bottom: 1px solid transparent;
}
.nav.scrolled {
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  backdrop-filter: blur(16px) saturate(140%);
  border-bottom-color: var(--border);
  box-shadow: var(--shadow-sm);
  padding: 9px 0;
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.brand { display: inline-flex; align-items: center; gap: 11px; font-weight: 800; }
.brand-logo { width: 38px; height: 38px; border-radius: 11px; box-shadow: var(--shadow-sm); }
.brand-name { font-size: 20px; letter-spacing: -.3px; }
.brand-accent { color: var(--teal); }
[data-theme="dark"] .brand-accent { color: var(--teal-light); }
.nav-links { display: flex; gap: 28px; font-weight: 500; font-size: 15px; color: var(--text-2); }
.nav-links a { position: relative; transition: color .2s; }
.nav-links a::after { content: ""; position: absolute; left: 0; bottom: -5px; width: 0; height: 2px; background: var(--grad-brand); border-radius: 2px; transition: width .25s var(--ease); }
.nav-links a:hover { color: var(--text); }
.nav-links a:hover::after { width: 100%; }
.nav-actions { display: flex; align-items: center; gap: 12px; }
.theme-toggle {
  width: 40px; height: 40px; border-radius: 12px; border: 1px solid var(--border);
  background: var(--card); color: var(--text-2); cursor: pointer;
  display: grid; place-items: center; transition: .2s;
}
.theme-toggle:hover { color: var(--teal); border-color: var(--teal); }
.icon-moon { display: none; }
[data-theme="dark"] .icon-sun { display: none; }
[data-theme="dark"] .icon-moon { display: block; }

/* ============ HERO ============ */
.hero {
  display: grid; grid-template-columns: 1.05fr .95fr; gap: 40px; align-items: center;
  padding: 70px 22px 80px;
}
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; font-weight: 600; letter-spacing: .3px; text-transform: uppercase;
  color: var(--teal); background: color-mix(in srgb, var(--teal) 10%, transparent);
  padding: 7px 14px; border-radius: 999px; margin-bottom: 20px;
}
.eyebrow.light { color: var(--green-light); background: rgba(105,240,174,.12); }
.eyebrow .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 4px rgba(0,200,83,.2); animation: pulse 2s infinite; }
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:.4} }
.hero-title { font-size: clamp(38px, 5.4vw, 62px); font-weight: 800; line-height: 1.05; letter-spacing: -1.5px; }
.grad-text { background: var(--grad-brand); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero-sub { font-size: 18px; color: var(--text-2); margin: 22px 0 32px; max-width: 520px; }
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-trust { list-style: none; display: flex; gap: 26px; margin-top: 34px; flex-wrap: wrap; font-size: 14px; color: var(--text-muted); }
.hero-trust li { position: relative; padding-left: 20px; }
.hero-trust li::before { content: "✓"; position: absolute; left: 0; color: var(--green); font-weight: 700; }
.hero-trust strong { color: var(--text); }

/* floating chips */
.hero-phone { position: relative; display: grid; place-items: center; }
.floaty {
  position: absolute; background: var(--card); border: 1px solid var(--border);
  border-radius: 16px; padding: 12px 16px; box-shadow: var(--shadow-lg);
  display: flex; flex-direction: column; gap: 2px; animation: floaty 5s ease-in-out infinite;
}
.floaty-label { font-size: 11px; color: var(--text-muted); text-transform: uppercase; letter-spacing: .5px; font-weight: 600; }
.floaty-value { font-size: 17px; font-weight: 700; }
.floaty-value small { font-size: 11px; font-weight: 500; color: var(--text-muted); margin-left: 4px; }
.floaty-value.pos { color: var(--green); }
.floaty-1 { top: 12%; left: -6%; }
.floaty-2 { bottom: 14%; right: -8%; animation-delay: 1.6s; }
@keyframes floaty { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-12px)} }

/* ============ PHONE MOCKUP ============ */
.phone {
  position: relative; width: 300px; aspect-ratio: 300/620;
  background: #0b0f0f; border-radius: 44px; padding: 12px;
  box-shadow: var(--shadow-glow), 0 0 0 2px rgba(0,0,0,.4) inset;
  border: 1px solid #2a3433;
}
.phone-hero { transform: rotate(-3deg); animation: phonefloat 7s ease-in-out infinite; }
@keyframes phonefloat { 0%,100%{transform:rotate(-3deg) translateY(0)} 50%{transform:rotate(-3deg) translateY(-14px)} }
.phone-screen {
  width: 100%; height: 100%; border-radius: 34px; overflow: hidden;
  background: #0b0f0f; position: relative; color: var(--text);
}
.phone-screen img { width: 100%; height: 100%; object-fit: cover; object-position: top center; display: block; }
.phone-sm { width: 250px; }

/* ============ TRUSTBAR ============ */
.trustbar { border-block: 1px solid var(--border); background: color-mix(in srgb, var(--card) 50%, transparent); padding: 16px 0; overflow: hidden; }
.trust-inner { display: flex; align-items: center; gap: 24px; }
.trust-tag { font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: .5px; color: var(--text-muted); white-space: nowrap; }
.trust-items { display: flex; gap: 16px; align-items: center; font-weight: 600; color: var(--text-2); font-size: 15px; flex-wrap: wrap; }
.trust-items .sep { color: var(--teal); }

/* ============ SECTIONS ============ */
.section { padding: 80px 0; }
.section-head { text-align: center; max-width: 680px; margin: 0 auto 50px; }
.section-head h2 { font-size: clamp(28px, 3.6vw, 42px); font-weight: 800; letter-spacing: -1px; line-height: 1.1; }
.section-head p { color: var(--text-2); font-size: 17px; margin-top: 14px; }

/* feature grid */
.feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.feature-card { grid-column: span 1; background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow-sm); transition: transform .25s var(--ease), box-shadow .25s var(--ease), border-color .25s; position: relative; overflow: hidden; }
.feature-card::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: var(--accent); transform: scaleX(0); transform-origin: left; transition: transform .3s var(--ease); }
.feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: color-mix(in srgb, var(--accent) 40%, var(--border)); }
.feature-card:hover::before { transform: scaleX(1); }
.feature-card:nth-child(1), .feature-card:nth-child(6) { grid-column: span 2; }
.feature-icon { width: 48px; height: 48px; border-radius: 14px; display: grid; place-items: center; color: #fff; background: var(--accent); margin-bottom: 16px; box-shadow: 0 8px 18px color-mix(in srgb, var(--accent) 35%, transparent); }
.feature-card h3 { font-size: 19px; font-weight: 700; margin-bottom: 8px; }
.feature-card p { color: var(--text-2); font-size: 15px; }

/* screens showcase */
.section-dark { background: linear-gradient(160deg, var(--teal-dark) 0%, #123a3a 55%, #0d2a2a 100%); color: #fff; position: relative; overflow: hidden; }
.section-dark::before { content: ""; position: absolute; width: 600px; height: 600px; border-radius: 50%; background: radial-gradient(circle, rgba(0,200,83,.18), transparent 70%); top: -200px; right: -100px; }
.section-dark .section-head h2 { color: #fff; }
.section-dark .section-head p { color: rgba(255,255,255,.75); }
.screens-stage { overflow: hidden; margin: 0 -22px; padding: 10px 0; }
.screens-track { display: flex; gap: 34px; padding: 20px 22px; transition: transform .5s var(--ease); will-change: transform; }
.screen-item { flex-shrink: 0; text-align: center; opacity: .55; transform: scale(.9); transition: opacity .4s var(--ease), transform .4s var(--ease); filter: saturate(.85); }
.screen-item.active { opacity: 1; transform: scale(1); filter: none; }
.screen-item figcaption { margin-top: 20px; color: rgba(255,255,255,.65); font-size: 14px; }
.screen-item figcaption strong { display: block; color: #fff; font-size: 17px; font-weight: 700; margin-bottom: 3px; }
.screens-controls { display: flex; justify-content: center; gap: 14px; margin-top: 24px; }
.scbtn { width: 48px; height: 48px; border-radius: 50%; border: 1px solid rgba(255,255,255,.25); background: rgba(255,255,255,.08); color: #fff; font-size: 24px; cursor: pointer; transition: .2s; backdrop-filter: blur(6px); }
.scbtn:hover { background: #fff; color: var(--teal-dark); transform: scale(1.08); }

/* steps */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.step { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 30px; box-shadow: var(--shadow-sm); position: relative; transition: transform .25s var(--ease), box-shadow .25s; }
.step:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.step-no { font-size: 46px; font-weight: 800; background: var(--grad-brand); -webkit-background-clip: text; background-clip: text; color: transparent; opacity: .9; }
.step h3 { font-size: 22px; font-weight: 700; margin: 6px 0 10px; }
.step p { color: var(--text-2); font-size: 15px; }

/* stats */
.stats-band { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; background: var(--grad-brand); border-radius: var(--radius-lg); padding: 44px 30px; color: #fff; box-shadow: var(--shadow-glow); text-align: center; }
.stat { position: relative; }
.stat::after { content: ""; position: absolute; right: -9px; top: 10%; height: 80%; width: 1px; background: rgba(255,255,255,.25); }
.stat:last-child::after { display: none; }
.stat-num { font-size: 46px; font-weight: 800; letter-spacing: -1px; }
.stat-suf { font-size: 26px; font-weight: 800; margin-left: 2px; }
.stat p { font-size: 13px; opacity: .9; margin-top: 6px; }

/* CTA */
.cta-card { display: grid; grid-template-columns: 1.3fr .7fr; gap: 30px; align-items: center; background: var(--card); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 50px 48px; box-shadow: var(--shadow-lg); position: relative; overflow: hidden; }
.cta-card::before { content: ""; position: absolute; width: 360px; height: 360px; border-radius: 50%; background: radial-gradient(circle, color-mix(in srgb, var(--teal) 22%, transparent), transparent 70%); top: -120px; left: -80px; }
.cta-copy { position: relative; }
.cta-logo { width: 60px; height: 60px; border-radius: 16px; box-shadow: var(--shadow-md); margin-bottom: 18px; }
.cta-copy h2 { font-size: clamp(28px, 3.4vw, 40px); font-weight: 800; letter-spacing: -1px; }
.cta-copy p { color: var(--text-2); font-size: 17px; margin: 14px 0 26px; max-width: 440px; }
.store-badges { display: flex; gap: 14px; flex-wrap: wrap; }
.store-badge { display: inline-flex; align-items: center; gap: 11px; background: var(--text); color: var(--bg); padding: 11px 20px; border-radius: 14px; transition: transform .2s var(--ease), box-shadow .2s; }
.store-badge:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.store-badge span { display: flex; flex-direction: column; line-height: 1.15; font-weight: 700; font-size: 16px; }
.store-badge small { font-size: 10px; font-weight: 500; opacity: .8; }
.cta-phone { display: grid; place-items: center; position: relative; }
.cta-phone .phone { transform: rotate(4deg); }

/* FAQ */
.faq { max-width: 760px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.faq details { background: var(--card); border: 1px solid var(--border); border-radius: 14px; padding: 4px 20px; box-shadow: var(--shadow-sm); transition: border-color .2s; }
.faq details[open] { border-color: var(--teal); }
.faq summary { cursor: pointer; font-weight: 600; font-size: 16px; padding: 16px 0; list-style: none; display: flex; justify-content: space-between; align-items: center; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-size: 22px; color: var(--teal); transition: transform .25s; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { color: var(--text-2); font-size: 15px; padding-bottom: 18px; }

/* FOOTER */
.footer { background: var(--bg-soft); border-top: 1px solid var(--border); padding: 60px 0 30px; margin-top: 20px; }
.footer-inner { display: grid; grid-template-columns: 1.4fr 2fr; gap: 40px; padding-bottom: 36px; border-bottom: 1px solid var(--border); }
.footer-brand p { color: var(--text-2); font-size: 15px; margin: 16px 0 20px; max-width: 320px; }
.socials { display: flex; gap: 12px; }
.socials a { width: 40px; height: 40px; border-radius: 12px; background: var(--card); border: 1px solid var(--border); display: grid; place-items: center; transition: transform .2s, border-color .2s; }
.socials a:hover { transform: translateY(-3px); border-color: var(--teal); }
.socials img { width: 20px; height: 20px; }
.footer-cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.footer-cols h4 { font-size: 14px; text-transform: uppercase; letter-spacing: .5px; margin-bottom: 14px; color: var(--text-muted); }
.footer-cols a { display: block; color: var(--text-2); font-size: 15px; padding: 5px 0; transition: color .2s; }
.footer-cols a:hover { color: var(--teal); }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; gap: 16px; padding-top: 24px; flex-wrap: wrap; }
.footer-bottom p { font-size: 13px; color: var(--text-muted); }
.disclaimer { max-width: 560px; text-align: right; }

/* reveal animation */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.in { opacity: 1; transform: none; }

/* ============ RESPONSIVE ============ */
@media (max-width: 960px) {
  .hero { grid-template-columns: 1fr; text-align: center; padding-top: 40px; }
  .hero-copy { order: 1; }
  .hero-phone { order: 2; }
  .hero-sub { margin-inline: auto; }
  .hero-cta, .hero-trust { justify-content: center; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .feature-card:nth-child(1), .feature-card:nth-child(6) { grid-column: span 2; }
  .cta-card { grid-template-columns: 1fr; text-align: center; }
  .cta-phone { display: none; }
  .cta-logo { margin-inline: auto; }
  .cta-copy p { margin-inline: auto; }
  .store-badges { justify-content: center; }
  .footer-inner { grid-template-columns: 1fr; }
  .disclaimer { text-align: left; }
}
@media (max-width: 640px) {
  .nav-links { display: none; }
  .steps, .stats-band, .footer-cols { grid-template-columns: 1fr; }
  .stat::after { display: none; }
  .feature-grid { grid-template-columns: 1fr; }
  .feature-card, .feature-card:nth-child(1), .feature-card:nth-child(6) { grid-column: span 1; }
  .trust-items { font-size: 13px; }
  .hero-title { letter-spacing: -1px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
}
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
}