:root {
  --bg: #0a0a0a;
  --surface: #1c1c1e;
  --text: #ffffff;
  --muted: rgba(255, 255, 255, 0.74);
  --border: rgba(255, 255, 255, 0.1);
  --accent: #f7c600;
  --shadow: 0 22px 70px rgba(0, 0, 0, 0.42);
  --max-width: 1100px;
  --radius: 28px;
  --transition: 0.3s ease;
  --section-space: 112px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background: var(--bg);
  color: var(--text);
  font-family:
    system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--accent);
}

button,
.button {
  transition:
    transform var(--transition),
    background-color var(--transition),
    border-color var(--transition),
    color var(--transition);
}

button:hover:not(:disabled),
.button:hover {
  transform: scale(1.03);
}

.container {
  width: min(calc(100% - 48px), var(--max-width));
  margin: 0 auto;
}

.narrow {
  max-width: 860px;
}

.section {
  padding: var(--section-space) 0;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 72px;
}

.brand img {
  width: 150px;
  height: auto;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 24px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.button-primary {
  background: var(--accent);
  color: #121212;
  box-shadow: 0 12px 30px rgba(247, 198, 0, 0.22);
}

.button-primary:hover {
  color: #121212;
}

.button-secondary {
  background: rgba(255, 255, 255, 0.04);
  color: rgba(255, 255, 255, 0.58);
  border-color: rgba(255, 255, 255, 0.12);
  cursor: not-allowed;
}

.hero-grid,
.cta-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(300px, 0.95fr);
  align-items: center;
  gap: 56px;
}

.hero-copy h1,
.section-heading h2,
.cta-copy h2 {
  margin: 0;
  line-height: 0.98;
  letter-spacing: -0.05em;
}

.hero-copy h1 {
  max-width: 10ch;
  font-size: clamp(3.4rem, 8vw, 6.2rem);
}

.hero-text,
.footer-copy,
.footer-email {
  color: var(--muted);
}

.hero-text {
  max-width: 560px;
  margin: 24px 0 32px;
  font-size: 1.1rem;
}

.mockup-iphone,
.mockup-watch {
  position: relative;
  margin-inline: auto;
  background:
    linear-gradient(150deg, rgba(255, 255, 255, 0.14), rgba(255, 255, 255, 0.02)),
    var(--surface);
  border: 1px solid rgba(255, 255, 255, 0.15);
  box-shadow: var(--shadow);
}

.mockup-iphone {
  width: min(100%, 360px);
  min-height: 640px;
  padding: 16px;
  border-radius: 42px;
}

.mockup-iphone::before {
  content: "";
  position: absolute;
  top: 16px;
  left: 50%;
  width: 110px;
  height: 28px;
  background: #000;
  border-radius: 999px;
  transform: translateX(-50%);
}

.mockup-screen {
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 100%;
  padding: 84px 28px 36px;
  border-radius: 30px;
  background:
    linear-gradient(180deg, rgba(247, 198, 0, 0.12), transparent 30%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.01));
}

.mockup-screen-placeholder,
.mockup-watch-face {
  display: grid;
  place-items: center;
  text-align: center;
}

.mockup-placeholder-label {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 16px;
  border: 1px dashed rgba(247, 198, 0, 0.5);
  border-radius: 999px;
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.section-problem {
  text-align: center;
}

.section-problem h2 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3.4rem);
  line-height: 1.12;
  letter-spacing: -0.04em;
}

.section-heading {
  display: grid;
  gap: 16px;
  max-width: 720px;
  margin-bottom: 40px;
}

.section-heading h2,
.cta-copy h2 {
  font-size: clamp(2.2rem, 4vw, 4rem);
}

.feature-grid,
.stats-grid {
  display: grid;
  gap: 24px;
}

.feature-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.stats-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.card {
  padding: 28px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.015));
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition:
    border-color var(--transition),
    transform var(--transition),
    box-shadow var(--transition);
}

.card:hover {
  border-color: rgba(247, 198, 0, 0.85);
  transform: translateY(-2px);
  box-shadow: 0 16px 42px rgba(0, 0, 0, 0.28);
}

.feature-card h3,
.stat strong,
.footer-row {
  margin: 0;
}

.feature-card h3 {
  font-size: 1.3rem;
  letter-spacing: -0.03em;
}

.feature-card p {
  margin: 12px 0 0;
  color: var(--muted);
}

.stat {
  display: grid;
  gap: 8px;
  align-content: start;
}

.stat strong {
  font-size: clamp(2.4rem, 4vw, 3.4rem);
  color: var(--accent);
  letter-spacing: -0.05em;
}

.stat span {
  color: var(--muted);
  font-size: 1.05rem;
}

.mockup-watch {
  width: min(100%, 300px);
  min-height: 320px;
  padding: 18px;
  border-radius: 40%;
}

.mockup-watch-face {
  min-height: 284px;
  padding: 28px;
  border-radius: 36%;
  background:
    radial-gradient(circle at top, rgba(247, 198, 0, 0.18), transparent 48%),
    rgba(255, 255, 255, 0.03);
}

.site-footer {
  padding-top: 40px;
  padding-bottom: 56px;
}

.footer-row {
  display: grid;
  grid-template-columns: auto auto 1fr auto;
  align-items: center;
  gap: 24px;
  padding-top: 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-brand img {
  width: 130px;
}

.footer-links {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}

.footer-copy {
  text-align: center;
}

html.js .reveal {
  opacity: 0;
  transform: translateY(24px);
}

html.js .reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

html.js .reveal,
html.js .reveal.is-visible {
  transition:
    opacity 0.55s ease-out,
    transform 0.55s ease-out;
}

@media (max-width: 768px) {
  :root {
    --section-space: 84px;
  }

  .container {
    width: min(calc(100% - 32px), var(--max-width));
  }

  .site-nav,
  .hero-grid,
  .cta-grid,
  .feature-grid,
  .stats-grid {
    gap: 28px;
  }

  .hero-grid,
  .cta-grid,
  .feature-grid,
  .stats-grid {
    grid-template-columns: 1fr;
  }

  .site-nav {
    flex-direction: column;
    align-items: flex-start;
    margin-bottom: 48px;
  }

  .footer-row {
    grid-template-columns: 1fr;
    justify-items: start;
  }

  .hero-copy h1 {
    max-width: 100%;
  }

  .mockup-iphone {
    min-height: 540px;
  }

  .mockup-watch {
    width: min(100%, 260px);
    min-height: 280px;
  }

  .mockup-watch-face {
    min-height: 244px;
  }

  .footer-copy {
    text-align: left;
  }
}

@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;
  }

  html.js .reveal {
    opacity: 1;
    transform: none;
  }
}