:root {
  --bg: #fbfbfd;
  --surface: #ffffff;
  --text: #1d1d1f;
  --muted: #86868b;
  --accent: #0a84ff;
  --accent-light: #5ac8fa;
  --line: rgba(0,0,0,0.08);
  --max: 980px;
  --radius-lg: 24px;
  --radius-md: 20px;
  --shadow-lg: 0 24px 60px rgba(0,0,0,0.10), 0 2px 8px rgba(0,0,0,0.06);
  --shadow-md: 0 12px 40px rgba(0,0,0,0.08), 0 2px 6px rgba(0,0,0,0.04);
  --accent-hover: #0071e3;
  --accent-tint-1: #e8f3ff;
  --accent-tint-2: #dbeeff;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'SF Pro Text', sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 16px;
  line-height: 1.5;
  min-width: 320px;
}
a { color: inherit; text-decoration: none; }
img { display: block; width: 100%; height: auto; }

/* ── NAV ── */
.topbar {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 28px;
  height: 52px;
  background: rgba(251,251,253,0.85);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--line);
}
.brand {
  display: flex;
  align-items: center;
  gap: 9px;
}
.brand-mark {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-light), var(--accent));
  box-shadow: 0 0 10px rgba(10,132,255,0.4);
  flex-shrink: 0;
}
.brand-text {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: -.01em;
}
.topnav {
  display: flex;
  gap: 26px;
}
.topnav a {
  font-size: 13px;
  color: var(--muted);
  transition: color .15s;
}
.topnav a:hover,
.topnav a:focus-visible {
  color: var(--text);
}

/* ── DIVIDER ── */
.divider {
  height: 1px;
  background: var(--line);
  max-width: var(--max);
  margin: 0 auto;
}

/* ── HERO ── */
.hero {
  padding: 72px 28px 56px;
  max-width: var(--max);
  margin: 0 auto;
  text-align: center;
}
.eyebrow {
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: .04em;
  text-transform: uppercase;
  margin-bottom: 14px;
}
.hero h1 {
  font-size: clamp(36px, 6vw, 64px);
  font-weight: 700;
  letter-spacing: -.04em;
  line-height: 1.05;
  margin-bottom: 20px;
}
.hero-sub {
  font-size: 17px;
  color: var(--muted);
  line-height: 1.6;
  max-width: 520px;
  margin: 0 auto 32px;
}
.hero-actions {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 20px;
  margin-bottom: 52px;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  padding: 10px 22px;
  border-radius: 980px;
  transition: background .15s, transform .15s;
}
.btn-primary:hover,
.btn-primary:focus-visible {
  background: var(--accent-hover);
  transform: scale(1.02);
}
.btn-link {
  font-size: 14px;
  color: var(--accent);
}
.btn-link::after {
  content: ' ›';
}
.btn-link:hover {
  color: var(--accent-hover);
}
.btn-link:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}
.hero-img-wrap {
  max-width: 720px;
  margin: 0 auto;
}
.hero-img-frame {
  background: linear-gradient(145deg, var(--accent-tint-1), var(--accent-tint-2));
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(255,255,255,.8);
}
.hero-img-frame img {
  border-radius: 14px;
  box-shadow: 0 4px 20px rgba(0,0,0,.1);
}

/* ── INTRO STRIP ── */
.intro-strip {
  padding: 60px 28px;
  max-width: var(--max);
  margin: 0 auto;
}
.intro-text {
  font-size: clamp(18px, 2.2vw, 24px);
  font-weight: 400;
  color: var(--muted);
  line-height: 1.55;
  text-align: center;
  max-width: 660px;
  margin: 0 auto 52px;
}
.intro-text strong {
  color: var(--text);
  font-weight: 600;
}

/* ── FEATURE STRIP ── */
.feature-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  background: var(--line);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--line);
}
.feat-tile {
  background: var(--surface);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.feat-glyph {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: linear-gradient(135deg, rgba(90,200,250,.18), rgba(10,132,255,.14));
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.feat-glyph svg {
  width: 22px;
  height: 22px;
}
.feat-name {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -.01em;
}
.feat-desc {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.5;
}

/* ── FEATURE ROWS ── */
.feature-row {
  padding: 80px 28px;
  max-width: var(--max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.feature-row.flip .feat-screenshot {
  order: -1;
}
.feat-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: .06em;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.feat-copy h2 {
  font-size: clamp(22px, 3vw, 34px);
  font-weight: 700;
  letter-spacing: -.03em;
  line-height: 1.1;
  margin-bottom: 14px;
}
.feat-copy p {
  font-size: 15px;
  color: var(--muted);
  line-height: 1.65;
}
.feat-screenshot {
  background: linear-gradient(145deg, var(--accent-tint-1), var(--accent-tint-2));
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid rgba(255,255,255,.9);
}

/* ── CTA ── */
.cta-section {
  text-align: center;
  padding: 80px 28px 100px;
  max-width: var(--max);
  margin: 0 auto;
}
.section-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: .06em;
  text-transform: uppercase;
  margin-bottom: 14px;
}
.cta-section h2 {
  font-size: clamp(26px, 4vw, 42px);
  font-weight: 700;
  letter-spacing: -.04em;
  line-height: 1.1;
  max-width: 14ch;
  margin: 0 auto 16px;
}
.cta-section p {
  font-size: 15px;
  color: var(--muted);
  max-width: 38rem;
  margin: 0 auto 28px;
  line-height: 1.65;
}

/* ── FOOTER ── */
footer {
  border-top: 1px solid var(--line);
  padding: 24px 28px;
  max-width: var(--max);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
footer p {
  font-size: 12px;
  color: var(--muted);
}
footer a {
  font-size: 12px;
  color: var(--accent);
}

/* ── REVEAL ANIMATION ── */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 700ms ease, transform 700ms cubic-bezier(0.22, 1, 0.36, 1);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-delay-1 {
  transition-delay: 140ms;
}
.reveal-delay-2 {
  transition-delay: 280ms;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal, .btn-primary, .topnav a { transition: none; }
  .reveal { opacity: 1; transform: none; }
}

/* ── RESPONSIVE ── */
@media (max-width: 1080px) {
  .feature-row {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .feature-row.flip .feat-screenshot {
    order: 0;
  }
  .feature-strip {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .topbar {
    flex-direction: column;
    align-items: flex-start;
    height: auto;
    padding: 14px 20px;
    gap: 12px;
  }
  .topnav {
    gap: 16px;
    flex-wrap: wrap;
  }
  .hero {
    padding: 48px 20px 40px;
  }
  .intro-strip,
  .feature-row,
  .cta-section {
    padding-left: 20px;
    padding-right: 20px;
  }
}