:root {
  color-scheme: light dark;
  --bg: #ffffff;
  --fg: #1a1a1f;
  --fg-muted: #5b5b66;
  --accent-1: #3388ff;
  --accent-2: #7a4dff;
  --card-bg: #f6f7fb;
  --border: rgba(0, 0, 0, 0.08);
  --swipe-green: #33cc66;
  --swipe-red: #f24d4d;
  --swipe-blue: #408cf2;
  --glow-opacity: 0.14;
  --pill-bg: rgba(255, 255, 255, 0.7);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1a1a1f;
    --fg: #f2f2f5;
    --fg-muted: #a5a5b0;
    --card-bg: #24242b;
    --border: rgba(255, 255, 255, 0.10);
    --glow-opacity: 0.35;
    --pill-bg: rgba(255, 255, 255, 0.06);
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

.bg-glow {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
}

.bg-glow span {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: var(--glow-opacity);
  animation: glow-float 22s ease-in-out infinite alternate;
}

.bg-glow .glow-a {
  width: 520px;
  height: 520px;
  top: -160px;
  left: -120px;
  background: var(--accent-1);
}

.bg-glow .glow-b {
  width: 560px;
  height: 560px;
  top: 40px;
  right: -180px;
  background: var(--accent-2);
  animation-delay: -11s;
}

@keyframes glow-float {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(30px, 40px) scale(1.08); }
}

@media (prefers-reduced-motion: reduce) {
  .bg-glow span { animation: none; }
}

.wrap {
  max-width: 720px;
  margin: 0 auto;
  padding: 48px 24px 96px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 36px;
}

.brand .mark {
  width: 40px;
  height: 40px;
  border-radius: 11px;
  display: block;
  object-fit: cover;
  flex-shrink: 0;
}

.brand .name {
  font-weight: 700;
  font-size: 19px;
  letter-spacing: -0.01em;
}

h1 {
  font-size: 30px;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 0 0 6px;
}

.updated {
  color: var(--fg-muted);
  font-size: 14px;
  margin-bottom: 40px;
}

h2 {
  font-size: 19px;
  font-weight: 700;
  margin: 40px 0 12px;
  letter-spacing: -0.01em;
}

p, li { color: var(--fg); font-size: 15.5px; }
p { margin: 0 0 14px; }
ul { margin: 0 0 14px; padding-left: 22px; }
li { margin-bottom: 6px; }

.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 18px 20px;
  margin: 20px 0;
}

.card p:last-child { margin-bottom: 0; }

a { color: var(--accent-1); text-decoration: underline; text-underline-offset: 2px; }
a:hover { opacity: 0.8; }

.nav {
  display: flex;
  gap: 18px;
  margin-bottom: 8px;
  font-size: 14px;
}

footer {
  margin-top: 56px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  color: var(--fg-muted);
  font-size: 13px;
  text-align: center;
}

.footer-links {
  margin: 0 0 10px;
  font-size: 13px;
  color: var(--fg-muted);
}

/* ---------- Landing page ---------- */

.wrap--landing {
  max-width: 1080px;
  padding-top: 40px;
}

.hero {
  max-width: 620px;
  margin: 0 auto;
  padding: 24px 0 8px;
  text-align: center;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  margin: 0 0 20px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--fg);
  background: var(--pill-bg);
  border: 1px solid var(--border);
  border-radius: 999px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.hero-title {
  font-size: clamp(30px, 5.5vw, 46px);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.12;
  margin: 0 0 18px;
}

.grad-text {
  background: linear-gradient(135deg, var(--accent-1), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-sub {
  font-size: 17px;
  color: var(--fg-muted);
  max-width: 480px;
  margin: 0 auto 32px;
}

.btn-download {
  position: relative;
  overflow: hidden;
  display: inline-block;
  padding: 15px 36px;
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  text-decoration: none;
  background: linear-gradient(135deg, var(--accent-1), var(--accent-2));
  border-radius: 12px;
  box-shadow: 0 10px 24px -10px rgba(51, 136, 255, 0.55);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn-download::before {
  content: "";
  position: absolute;
  top: 0;
  left: -60%;
  width: 40%;
  height: 100%;
  background: linear-gradient(120deg, transparent, rgba(255, 255, 255, 0.35), transparent);
  transform: skewX(-20deg);
  transition: left 0.6s ease;
}

.btn-download:hover::before { left: 130%; }

.btn-download:hover {
  opacity: 1;
  transform: translateY(-2px);
  box-shadow: 0 14px 30px -8px rgba(51, 136, 255, 0.65);
}

.btn-download:active { transform: translateY(0); }

/* Screenshot carousel — real app screens, swipeable via native scroll-snap */

.screens-showcase { padding: 40px 0 56px; }

.screens-carousel {
  display: flex;
  gap: 20px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding: 0 calc(50% - 130px) 12px;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  mask-image: linear-gradient(to right, transparent, black 6%, black 94%, transparent);
  -webkit-mask-image: linear-gradient(to right, transparent, black 6%, black 94%, transparent);
}

.screens-carousel::-webkit-scrollbar { display: none; }

.screen-slide {
  flex: 0 0 auto;
  scroll-snap-align: center;
}

.screen-slide img {
  display: block;
  height: 460px;
  width: auto;
  max-width: 80vw;
  border-radius: 28px;
  box-shadow: 0 30px 60px -20px rgba(0, 0, 0, 0.35);
}

.carousel-dots {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 6px;
}

.carousel-dots .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--border);
  transition: background 0.25s ease, transform 0.25s ease;
}

.carousel-dots .dot.is-active {
  background: linear-gradient(135deg, var(--accent-1), var(--accent-2));
  transform: scale(1.35);
}

/* Feature grid */

.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin: 8px 0 48px;
}

.feature-card {
  text-align: center;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 24px 40px -22px rgba(0, 0, 0, 0.4);
  border-color: var(--accent-1);
}

.feature-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  margin: 0 auto 14px;
  border-radius: 16px;
  font-size: 26px;
  background: linear-gradient(135deg, rgba(51, 136, 255, 0.14), rgba(122, 77, 255, 0.14));
}

.feature-card h3 {
  font-size: 17px;
  font-weight: 700;
  margin: 0 0 8px;
  letter-spacing: -0.01em;
}

.feature-card p {
  font-size: 14.5px;
  color: var(--fg-muted);
  margin: 0;
}

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    transition: none;
    opacity: 1;
    transform: none;
  }
}

@media (max-width: 640px) {
  .wrap--landing { padding-top: 28px; }
  .btn-download { width: 100%; text-align: center; }
  .screen-slide img { height: 380px; }
  .screens-carousel { padding-left: calc(50% - 108px); padding-right: calc(50% - 108px); }
  .features { grid-template-columns: 1fr; }
}