/* =========================================================
   AIO LINK — Design System & Animations
   ========================================================= */
:root {
  --primary: #6C5CE7;
  --primary-dark: #5848C2;
  --primary-soft: #EEEBFF;
  --ink: #1A1B2E;
  --text-secondary: #6B7280;
  --muted: #9CA3AF;
  --soft: #F7F7FB;
  --border: #E9E9F0;
  --border-strong: #E0E0EA;
  --star: #FBBF24;
  --ease-out-back: cubic-bezier(.34, 1.56, .64, 1);
  --ease-smooth: cubic-bezier(.4, 0, .2, 1);
}

* { -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; }
html { scroll-behavior: smooth; overflow-x: hidden; }
body { font-family: 'Inter', system-ui, sans-serif; color: var(--ink); background: #fff; overflow-x: hidden; }
img { max-width: 100%; }

/* Lucide icons inherit sizing */
[data-lucide] { stroke-width: 2; }

/* =========================================================
   Reveal on scroll
   ========================================================= */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity .7s var(--ease-smooth), transform .7s var(--ease-smooth);
  will-change: opacity, transform;
}
.reveal.in { opacity: 1; transform: none; }
.reveal-left  { transform: translateX(-34px); }
.reveal-right { transform: translateX(34px); }
.reveal-zoom  { transform: scale(.92); }
.reveal-left.in, .reveal-right.in, .reveal-zoom.in { transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal, .reveal-left, .reveal-right, .reveal-zoom { opacity: 1 !important; transform: none !important; transition: none; }
  .float, .float-slow, .blob, .shimmer-text, .pulse-ring { animation: none !important; }
}

/* =========================================================
   Buttons — interactive motion
   ========================================================= */
.btn {
  position: relative;
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-weight: 600; border-radius: 10px; cursor: pointer;
  transition: transform .25s var(--ease-out-back), box-shadow .25s var(--ease-smooth), background-color .2s;
  overflow: hidden; white-space: nowrap;
}
.btn:active { transform: scale(.96); }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-3px); box-shadow: 0 12px 24px -8px rgba(108,92,231,.55); }
.btn-soft { background: var(--primary-soft); color: var(--ink); border: 1px solid var(--border-strong); }
.btn-soft:hover { transform: translateY(-3px); box-shadow: 0 10px 20px -10px rgba(26,27,46,.25); }
.btn-ghost { background: #fff; color: var(--ink); border: 1px solid var(--border-strong); }
.btn-ghost:hover { transform: translateY(-3px); border-color: var(--primary); color: var(--primary); box-shadow: 0 10px 20px -10px rgba(108,92,231,.3); }
/* shine sweep on hover */
.btn::after {
  content: ''; position: absolute; top: 0; left: -120%; width: 60%; height: 100%;
  background: linear-gradient(120deg, transparent, rgba(255,255,255,.35), transparent);
  transform: skewX(-20deg); transition: left .6s var(--ease-smooth);
}
.btn:hover::after { left: 140%; }

/* App store badges */
.store-badge { transition: transform .25s var(--ease-out-back), box-shadow .25s; }
.store-badge:hover { transform: translateY(-3px) scale(1.02); box-shadow: 0 14px 26px -12px rgba(0,0,0,.5); }

/* =========================================================
   Cards — hover lift
   ========================================================= */
.card-hover { transition: transform .35s var(--ease-out-back), box-shadow .35s var(--ease-smooth), border-color .35s; }
.card-hover:hover { transform: translateY(-6px); box-shadow: 0 22px 40px -22px rgba(26,27,46,.28); border-color: var(--border-strong); }

.feature-card { transition: transform .35s var(--ease-out-back), box-shadow .35s, background-color .35s; }
.feature-card:hover { transform: translateY(-8px); background: #fff; box-shadow: 0 24px 44px -24px rgba(108,92,231,.4); }
.feature-card:hover .icon-box { transform: rotate(-6deg) scale(1.08); background: var(--primary); }
.feature-card:hover .icon-box [data-lucide] { color: #fff; }
.icon-box { transition: transform .35s var(--ease-out-back), background-color .3s; }
.icon-box [data-lucide] { transition: color .3s; }

/* link underline grow */
.nav-link { position: relative; transition: color .2s; }
.nav-link::after {
  content: ''; position: absolute; left: 0; bottom: -6px; height: 2px; width: 100%;
  background: var(--primary); transform: scaleX(0); transform-origin: left; transition: transform .3s var(--ease-smooth);
}
.nav-link:hover { color: var(--primary); }
.nav-link:hover::after, .nav-link.active::after { transform: scaleX(1); }
.nav-link.active { color: var(--primary); font-weight: 600; }

/* image zoom in frame */
.img-zoom { overflow: hidden; }
.img-zoom img, .img-zoom .img-bg { transition: transform .6s var(--ease-smooth); }
.group:hover .img-zoom img, .card-hover:hover .img-zoom .img-bg, .img-zoom:hover img { transform: scale(1.07); }

/* =========================================================
   Decorative motion
   ========================================================= */
@keyframes float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-16px); } }
@keyframes floatSlow { 0%,100% { transform: translateY(0) rotate(0); } 50% { transform: translateY(-22px) rotate(1.5deg); } }
.float { animation: float 6s ease-in-out infinite; }
.float-slow { animation: floatSlow 8s ease-in-out infinite; }

@keyframes blob {
  0%,100% { border-radius: 42% 58% 60% 40% / 50% 45% 55% 50%; transform: translate(0,0) scale(1); }
  33% { border-radius: 60% 40% 45% 55% / 55% 60% 40% 45%; transform: translate(20px,-18px) scale(1.05); }
  66% { border-radius: 45% 55% 55% 45% / 40% 50% 50% 60%; transform: translate(-16px,14px) scale(.97); }
}
.blob { animation: blob 16s ease-in-out infinite; filter: blur(38px); }

/* gradient shimmer text */
.shimmer-text {
  background: linear-gradient(100deg, var(--primary) 20%, #a594ff 40%, var(--primary) 60%);
  background-size: 220% auto; -webkit-background-clip: text; background-clip: text; color: transparent;
  animation: shimmer 4s linear infinite;
}
@keyframes shimmer { to { background-position: 220% center; } }

/* pulse ring */
.pulse-ring { position: relative; }
.pulse-ring::before {
  content: ''; position: absolute; inset: 0; border-radius: inherit; border: 2px solid var(--primary);
  animation: pulseRing 2.2s ease-out infinite;
}
@keyframes pulseRing { 0% { transform: scale(1); opacity: .7; } 100% { transform: scale(1.5); opacity: 0; } }

/* marquee */
.marquee { display: flex; gap: 64px; width: max-content; animation: marquee 28s linear infinite; }
.marquee-wrap:hover .marquee { animation-play-state: paused; }
@keyframes marquee { to { transform: translateX(-50%); } }

/* nav scrolled state */
#site-nav .nav-bar { transition: box-shadow .3s, padding .3s, background-color .3s; }
#site-nav.scrolled .nav-bar { box-shadow: 0 6px 24px -16px rgba(26,27,46,.4); background: rgba(255,255,255,.85); backdrop-filter: blur(12px); }

/* mobile menu */
.mobile-menu { transition: transform .4s var(--ease-smooth), opacity .3s; overflow: hidden; }
.mobile-menu.closed { transform: translateX(100%); opacity: 0; pointer-events: none; }

/* count-up hidden flash fix */
.count { font-variant-numeric: tabular-nums; }

/* generic tap scale for clickable chips */
.tap { transition: transform .2s var(--ease-out-back); }
.tap:active { transform: scale(.94); }

/* hero phones tilt container */
.phone { transition: transform .5s var(--ease-out-back), box-shadow .5s; }
.phone:hover { transform: translateY(-10px) rotate(-1deg) scale(1.02); }