/* ==========================================================================
   Zenlot — marketing site styles
   Palette derived from the app icon + splash (app.json backgroundColor #001c34)
   ========================================================================== */

:root {
  --ink-900: #00121f;
  --ink-800: #001c34;
  --ink-700: #052a45;
  --ink-600: #0b3a5c;
  --teal: #2fbcc1;
  --teal-bright: #45d7dc;
  --blue: #1478a7;
  --blue-bright: #2a9bd4;
  --line: rgba(255, 255, 255, 0.08);
  --line-strong: rgba(255, 255, 255, 0.14);
  --text: #eaf2f8;
  --text-dim: #9fb6c8;
  --text-dimmer: #6f8ba1;
}

* { -webkit-tap-highlight-color: transparent; }

html { scroll-behavior: smooth; scroll-padding-top: 88px; }

body {
  background: var(--ink-800);
  color: var(--text);
  font-family: 'Plus Jakarta Sans', ui-sans-serif, system-ui, -apple-system, 'Segoe UI', sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* --- Ambient background ---------------------------------------------------- */

.bg-shell { position: fixed; inset: 0; z-index: -1; overflow: hidden; }

.bg-shell::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(60rem 40rem at 12% -8%, rgba(47, 188, 193, 0.16), transparent 60%),
    radial-gradient(50rem 36rem at 92% 4%, rgba(20, 120, 167, 0.20), transparent 62%),
    radial-gradient(48rem 38rem at 50% 108%, rgba(20, 120, 167, 0.12), transparent 60%);
}

.bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(255, 255, 255, 0.028) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.028) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 100% 60% at 50% 0%, #000 30%, transparent 78%);
  -webkit-mask-image: radial-gradient(ellipse 100% 60% at 50% 0%, #000 30%, transparent 78%);
}

/* --- Type helpers ---------------------------------------------------------- */

.grad-text {
  background: linear-gradient(104deg, var(--teal-bright) 0%, var(--teal) 34%, var(--blue-bright) 78%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.balance { text-wrap: balance; }

.eyebrow {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--teal);
}

/* --- Surfaces -------------------------------------------------------------- */

.card {
  position: relative;
  border-radius: 20px;
  border: 1px solid var(--line);
  background: linear-gradient(168deg, rgba(255, 255, 255, 0.055), rgba(255, 255, 255, 0.012));
  transition: border-color 0.35s ease, transform 0.35s ease, background 0.35s ease;
}

.card:hover {
  border-color: var(--line-strong);
  transform: translateY(-3px);
}

.card-glow::after {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(140deg, rgba(47, 188, 193, 0.55), transparent 42%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.35s ease;
  pointer-events: none;
}

.card:hover .card-glow::after,
.card.card-glow:hover::after { opacity: 1; }

.glass {
  background: rgba(0, 18, 31, 0.72);
  backdrop-filter: saturate(150%) blur(14px);
  -webkit-backdrop-filter: saturate(150%) blur(14px);
}

.hairline { border-top: 1px solid var(--line); }

/* --- Buttons --------------------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  border-radius: 999px;
  font-weight: 600;
  transition: transform 0.2s ease, box-shadow 0.3s ease, background 0.3s ease, border-color 0.3s ease;
}

.btn:active { transform: scale(0.975); }

.btn-primary {
  background: linear-gradient(103deg, var(--teal) 0%, var(--blue) 100%);
  color: #01121e;
  box-shadow: 0 10px 30px -12px rgba(47, 188, 193, 0.75);
}

.btn-primary:hover {
  box-shadow: 0 16px 40px -12px rgba(47, 188, 193, 0.9);
  transform: translateY(-1px);
}

.btn-ghost {
  border: 1px solid var(--line-strong);
  color: var(--text);
  background: rgba(255, 255, 255, 0.03);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.07);
  border-color: rgba(255, 255, 255, 0.26);
}

/* --- Store badges ---------------------------------------------------------- */

.store-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.6rem 1.15rem 0.6rem 1rem;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  background: #000;
  color: #fff;
  min-width: 174px;
  transition: border-color 0.25s ease, transform 0.25s ease, background 0.25s ease;
}

.store-badge:hover {
  border-color: rgba(255, 255, 255, 0.5);
  background: #0a0a0a;
  transform: translateY(-2px);
}

.store-badge .sb-small {
  display: block;
  font-size: 0.6rem;
  line-height: 1.1;
  letter-spacing: 0.03em;
  opacity: 0.85;
}

.store-badge .sb-big {
  display: block;
  font-size: 1.06rem;
  line-height: 1.22;
  font-weight: 600;
  letter-spacing: -0.01em;
}

/* --- Device frame ---------------------------------------------------------- */

.device {
  position: relative;
  width: 100%;
  max-width: 292px;
  aspect-ratio: 9 / 19.5;
  border-radius: 44px;
  padding: 10px;
  background: linear-gradient(160deg, #33475a, #0d1c2b 45%, #24384a);
  box-shadow:
    0 2px 0 rgba(255, 255, 255, 0.14) inset,
    0 44px 90px -30px rgba(0, 0, 0, 0.85),
    0 0 0 1px rgba(255, 255, 255, 0.06);
}

.device-screen {
  position: relative;
  width: 100%;
  height: 100%;
  border-radius: 35px;
  overflow: hidden;
  background: linear-gradient(170deg, var(--ink-700), var(--ink-900));
  display: flex;
  align-items: center;
  justify-content: center;
}

.device-screen img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  display: block;
}

.device-island {
  position: absolute;
  top: 11px;
  left: 50%;
  transform: translateX(-50%);
  width: 32%;
  height: 22px;
  border-radius: 999px;
  background: #000;
  z-index: 3;
}

/* Placeholder shown until a real screenshot PNG is dropped in */
.device-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.85rem;
  padding: 1.6rem;
  text-align: center;
  background:
    radial-gradient(120% 60% at 50% 0%, rgba(47, 188, 193, 0.16), transparent 65%),
    linear-gradient(170deg, var(--ink-700), var(--ink-900));
}

.device-placeholder .dp-mark { width: 54px; height: 54px; border-radius: 24%; opacity: 0.9; }
.device-placeholder .dp-label { font-size: 0.7rem; color: var(--text-dimmer); letter-spacing: 0.04em; }
.device.is-empty .device-screen img { display: none; }
.device:not(.is-empty) .device-placeholder { display: none; }

.device-float { animation: float 7s ease-in-out infinite; }
.device-float-slow { animation: float 9s ease-in-out infinite; animation-delay: -3s; }

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-14px); }
}

/* --- Reveal on scroll ------------------------------------------------------ */

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1), transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

.reveal.in { opacity: 1; transform: none; }

/* --- FAQ ------------------------------------------------------------------- */

.faq summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.faq summary::-webkit-details-marker { display: none; }
.faq summary .chev { transition: transform 0.25s ease; flex: none; }
.faq details[open] summary .chev { transform: rotate(180deg); }

/* --- Misc ------------------------------------------------------------------ */

.tick { color: var(--teal); flex: none; }

a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--teal);
  outline-offset: 3px;
  border-radius: 6px;
}

::selection { background: rgba(47, 188, 193, 0.32); color: #fff; }

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  padding: 0.75rem 1.25rem;
  border-radius: 0 0 12px 0;
  background: var(--teal);
  color: #01121e;
  font-weight: 700;
}

.skip-link:focus { left: 0; }