:root {
  --bg: #05070d;
  --bg-raised: #0b0f1a;
  --card: rgba(255, 255, 255, 0.035);
  --card-border: rgba(255, 255, 255, 0.08);
  --text: #f4f6fb;
  --muted: rgba(244, 246, 251, 0.66);
  --faint: rgba(244, 246, 251, 0.42);
  --cyan: #35e3ff;
  --violet: #8b7bff;
  --pink: #ff4fd8;
  --coral: #ff4f7b;
  --amber: #ffb03a;
  --blue: #4f8dff;
  --brand: linear-gradient(90deg, var(--cyan), var(--violet) 55%, var(--pink));
  --radius: 22px;
  --max: 1120px;
  color-scheme: dark;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

body::before,
body::after {
  content: "";
  position: fixed;
  z-index: -1;
  width: 70vmax;
  height: 70vmax;
  border-radius: 50%;
  filter: blur(140px);
  opacity: 0.22;
  pointer-events: none;
}

body::before { background: var(--cyan); top: -35vmax; left: -25vmax; }
body::after { background: var(--pink); bottom: -40vmax; right: -30vmax; }

a { color: var(--cyan); text-decoration: none; }
a:hover { text-decoration: underline; }

img { max-width: 100%; }

h1, h2, h3 { line-height: 1.12; letter-spacing: -0.02em; margin: 0; text-wrap: balance; }
p { margin: 0; }

.gradient-text {
  background: var(--brand);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* Header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px max(16px, calc((100vw - var(--max)) / 2));
  background: rgba(5, 7, 13, 0.72);
  backdrop-filter: saturate(160%) blur(18px);
  -webkit-backdrop-filter: saturate(160%) blur(18px);
  border-bottom: 1px solid var(--card-border);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-weight: 700;
  font-size: 18px;
  letter-spacing: -0.01em;
}

.brand:hover { text-decoration: none; }
.brand img { border-radius: 22%; }
.brand.small { font-size: 15px; }

.site-header nav { display: flex; gap: 22px; }
.site-header nav a { color: var(--muted); font-size: 15px; font-weight: 500; }
.site-header nav a:hover,
.site-header nav a[aria-current="page"] { color: var(--text); text-decoration: none; }

/* Layout */

.section { padding: 96px 16px; }
.section-inner { max-width: var(--max); margin: 0 auto; }

.eyebrow {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 14px;
}

.section-heading { max-width: 680px; margin-bottom: 48px; }
.section-heading h2 { font-size: clamp(32px, 4.4vw, 48px); }
.section-heading p { margin-top: 16px; color: var(--muted); font-size: 19px; }

.split {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 56px;
  align-items: start;
}

.split h2 { font-size: clamp(32px, 4.4vw, 48px); }
.split > p, .split .lede { color: var(--muted); font-size: 19px; }

/* Hero */

.hero {
  max-width: calc(var(--max) + 32px);
  margin: 0 auto;
  padding: 72px 16px 40px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 40px;
  align-items: center;
}

.hero-icon {
  width: 104px;
  height: 104px;
  border-radius: 22%;
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.08), 0 0 60px rgba(139, 123, 255, 0.45);
  margin-bottom: 28px;
}

.hero h1 { font-size: clamp(54px, 8vw, 92px); font-weight: 800; letter-spacing: -0.035em; }

.hero-subtitle {
  margin-top: 18px;
  font-size: clamp(19px, 2.2vw, 22px);
  color: var(--muted);
  max-width: 520px;
}

.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 999px;
  font-weight: 650;
  font-size: 16px;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.button:hover { text-decoration: none; transform: translateY(-1px); }

.button.primary {
  background: var(--brand);
  color: #fff;
  box-shadow: 0 8px 30px rgba(139, 123, 255, 0.35);
}

.button.secondary {
  color: var(--text);
  background: var(--card);
  border: 1px solid var(--card-border);
}

.store-note { margin-top: 16px; font-size: 14px; color: var(--faint); }

.hero-visual {
  /* Phones are sized off the container's width (cqw) so all three always
     fit whole, at any width, with nothing clipped. */
  container-type: inline-size;
  position: relative;
  width: 100%;
  max-width: 560px;
  aspect-ratio: 1 / 1.04;
  margin: 0 auto;
}

.phone {
  position: absolute;
  padding: 1.3cqw;
  border-radius: 6.6cqw;
  background: #0c0f17;
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.1), 0 30px 80px rgba(0, 0, 0, 0.55);
}

.phone img { display: block; width: 100%; border-radius: 5.4cqw; }

.phone.center {
  width: 45cqw;
  left: 50%;
  top: 0;
  transform: translateX(-50%);
  z-index: 2;
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.12), 0 0 80px rgba(53, 227, 255, 0.28), 0 30px 80px rgba(0, 0, 0, 0.55);
}

.phone.left,
.phone.right { width: 37cqw; top: 11cqw; opacity: 0.85; }
.phone.left { left: 5cqw; transform: rotate(-6deg); }
.phone.right { right: 5cqw; transform: rotate(6deg); }

/* Features */

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.feature-card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 26px;
}

.feature-card h3 { font-size: 20px; margin: 18px 0 8px; }
.feature-card p { color: var(--muted); font-size: 16px; }

.feature-mark {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border-radius: 13px;
  color: #fff;
  box-shadow: 0 0 24px var(--glow, transparent);
}

.feature-mark svg { width: 26px; height: 26px; }

.feature-mark.challenge { background: var(--brand); --glow: rgba(139, 123, 255, 0.5); }
.feature-mark.movement { background: var(--coral); --glow: rgba(255, 79, 123, 0.5); }
.feature-mark.fuel { background: var(--amber); --glow: rgba(255, 176, 58, 0.45); }
.feature-mark.body { background: var(--blue); --glow: rgba(79, 141, 255, 0.5); }
.feature-mark.progress { background: var(--violet); --glow: rgba(139, 123, 255, 0.5); }
.feature-mark.private { background: var(--cyan); --glow: rgba(53, 227, 255, 0.45); }

/* Screenshots */

.carousel { position: relative; }

.screenshot-row {
  display: flex;
  gap: 22px;
  overflow-x: auto;
  padding: 8px 4px 8px;
  scroll-snap-type: x mandatory;
  scroll-padding-inline: 4px;
  scroll-behavior: smooth;
  scrollbar-width: none;
  overscroll-behavior-x: contain;
  /* Fade whichever edge still has more to see. */
  --fade-l: 0px;
  --fade-r: 72px;
  mask-image: linear-gradient(90deg, transparent 0, #000 var(--fade-l), #000 calc(100% - var(--fade-r)), transparent 100%);
  -webkit-mask-image: linear-gradient(90deg, transparent 0, #000 var(--fade-l), #000 calc(100% - var(--fade-r)), transparent 100%);
}

.screenshot-row::-webkit-scrollbar { display: none; }
.screenshot-row:focus-visible { outline: 2px solid var(--cyan); outline-offset: 6px; border-radius: 12px; }

.carousel:not(.at-start) .screenshot-row { --fade-l: 72px; }
.carousel.at-end .screenshot-row { --fade-r: 0px; }

.screenshot-row figure {
  flex: 0 0 240px;
  margin: 0;
  scroll-snap-align: start;
}

.screenshot-row img {
  display: block;
  width: 100%;
  border-radius: 30px;
  border: 1px solid var(--card-border);
}

.screenshot-row figcaption { margin-top: 12px; font-size: 15px; color: var(--muted); text-align: center; }

.carousel-btn {
  position: absolute;
  top: calc(50% - 22px);
  transform: translateY(-50%);
  z-index: 2;
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(12, 15, 23, 0.78);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  color: var(--text);
  cursor: pointer;
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.45);
  transition: opacity 0.2s ease, transform 0.15s ease, border-color 0.15s ease;
}

.carousel-btn svg { width: 22px; height: 22px; }
.carousel-btn:hover { border-color: var(--cyan); }
.carousel-btn:focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; }
.carousel-btn.prev { left: -8px; }
.carousel-btn.next { right: -8px; }

.carousel.at-start .carousel-btn.prev,
.carousel.at-end .carousel-btn.next { opacity: 0; pointer-events: none; }

.carousel-dots { display: flex; justify-content: center; gap: 8px; margin-top: 18px; }

.carousel-dots button {
  width: 8px;
  height: 8px;
  padding: 0;
  border: 0;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.22);
  cursor: pointer;
  transition: width 0.2s ease, background 0.2s ease;
}

.carousel-dots button[aria-current="true"] { width: 24px; background: var(--brand); }

/* Platforms */

.platforms {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.platforms article {
  border-top: 2px solid var(--card-border);
  padding-top: 18px;
}

.platforms h3 { font-size: 19px; margin-bottom: 6px; }
.platforms p { color: var(--muted); font-size: 16px; }

/* Support / FAQ */

.support-lede a { font-weight: 600; }

.faq-list { display: grid; gap: 12px; }

.faq-list details {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 18px;
  padding: 0 22px;
}

.faq-list summary {
  cursor: pointer;
  list-style: none;
  padding: 18px 28px 18px 0;
  font-weight: 650;
  font-size: 17px;
  position: relative;
}

.faq-list summary::-webkit-details-marker { display: none; }

.faq-list summary::after {
  content: "+";
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  color: var(--cyan);
  font-size: 22px;
  font-weight: 400;
}

.faq-list details[open] summary::after { content: "–"; }
.faq-list details p { color: var(--muted); font-size: 16px; padding-bottom: 18px; }
.faq-list details p + p { margin-top: -6px; }

/* Privacy band */

.privacy-band {
  background: linear-gradient(180deg, rgba(53, 227, 255, 0.05), rgba(139, 123, 255, 0.04));
  border-top: 1px solid var(--card-border);
  border-bottom: 1px solid var(--card-border);
}

.privacy-copy { display: grid; gap: 16px; color: var(--muted); }

.text-link { font-weight: 650; }

/* Policy page */

.policy-hero { padding: 80px 16px 24px; text-align: center; }
.policy-header img { border-radius: 22%; box-shadow: 0 0 50px rgba(139, 123, 255, 0.4); margin-bottom: 22px; }
.policy-header h1 { font-size: clamp(38px, 6vw, 60px); font-weight: 800; }
.policy-header .hero-subtitle { margin: 18px auto 0; }
.policy-date { margin-top: 16px; color: var(--faint); font-size: 15px; }

.policy-section { padding-top: 32px; }
.policy-content { max-width: 760px; display: grid; gap: 40px; }
.policy-content h2 { font-size: 24px; margin-bottom: 12px; }
.policy-content p, .policy-content li { color: var(--muted); }
.policy-content p + p { margin-top: 12px; }
.policy-content ul { margin: 12px 0 0; padding-left: 22px; }
.policy-content li + li { margin-top: 6px; }
.policy-content strong { color: var(--text); font-weight: 650; }

/* Footer */

.site-footer {
  border-top: 1px solid var(--card-border);
  padding: 32px 16px 44px;
}

.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  color: var(--faint);
  font-size: 14px;
}

.footer-inner a { color: var(--muted); }

/* Responsive */

@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; padding-top: 48px; text-align: center; }
  .hero-icon { margin-left: auto; margin-right: auto; }
  .hero-subtitle { margin-left: auto; margin-right: auto; }
  .hero-actions { justify-content: center; }
  .split { grid-template-columns: 1fr; gap: 28px; }
  .features-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .platforms { grid-template-columns: 1fr; }
  .section { padding: 72px 16px; }
}

@media (max-width: 560px) {
  .site-header nav { gap: 14px; }
  .site-header nav a { font-size: 14px; }
  .features-grid { grid-template-columns: 1fr; }
  .screenshot-row figure { flex-basis: 200px; }
  .carousel-btn { width: 40px; height: 40px; }
  .carousel-btn.prev { left: -4px; }
  .carousel-btn.next { right: -4px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .button, .carousel-btn, .carousel-dots button { transition: none; }
  .screenshot-row { scroll-behavior: auto; }
}