:root {
  color-scheme: light dark;

  --bg: #f5f5f7;
  --bg-grad-1: #eef0f4;
  --bg-grad-2: #f7f7fa;
  --text: #1d1d1f;
  --muted: #6e6e73;
  --border: rgba(0, 0, 0, 0.08);
  --border-strong: rgba(0, 0, 0, 0.12);
  --glass-bg: rgba(255, 255, 255, 0.55);
  --glass-bg-strong: rgba(255, 255, 255, 0.72);
  --accent: #0071e3;
  --fastra-a: #6ee7b7;
  --fastra-b: #34d399;
  --setent-a: #60a5fa;
  --setent-b: #a78bfa;
  --shadow: 0 20px 60px rgba(20, 20, 40, 0.08), 0 1px 2px rgba(20, 20, 40, 0.04);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0a0a0b;
    --bg-grad-1: #0b0c10;
    --bg-grad-2: #111218;
    --text: #f2f2f4;
    --muted: #a1a1a8;
    --border: rgba(255, 255, 255, 0.08);
    --border-strong: rgba(255, 255, 255, 0.14);
    --glass-bg: rgba(28, 28, 32, 0.55);
    --glass-bg-strong: rgba(28, 28, 32, 0.72);
    --accent: #4aa3ff;
    --shadow: 0 20px 60px rgba(0, 0, 0, 0.5), 0 1px 2px rgba(0, 0, 0, 0.3);
  }
}

* { box-sizing: border-box; }

html, body { height: 100%; }

body {
  margin: 0;
  font: 16px/1.55 -apple-system, BlinkMacSystemFont, "SF Pro Text", "SF Pro Display", system-ui, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(1200px 600px at 85% -10%, rgba(110, 231, 183, 0.18), transparent 60%),
    radial-gradient(900px 500px at -10% 10%, rgba(96, 165, 250, 0.18), transparent 60%),
    linear-gradient(180deg, var(--bg-grad-1) 0%, var(--bg-grad-2) 100%);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  display: flex;
  flex-direction: column;
  letter-spacing: -0.01em;
}

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

.site-header {
  position: sticky; top: 0; z-index: 10;
  padding: 12px 20px;
  display: flex; justify-content: space-between; align-items: center;
  background: var(--glass-bg);
  -webkit-backdrop-filter: saturate(180%) blur(24px);
  backdrop-filter: saturate(180%) blur(24px);
  border-bottom: 1px solid var(--border);
}
.brand { font-weight: 600; color: var(--text); letter-spacing: -0.02em; }
.site-header nav a { color: var(--muted); margin-left: 18px; font-size: 15px; }
.site-header nav a:hover { color: var(--text); text-decoration: none; }

.container { max-width: 960px; width: 100%; margin: 0 auto; padding: 28px 20px 56px; }

.tag {
  display: inline-block;
  padding: 4px 10px;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  color: var(--muted);
  font-size: 12px;
  background: var(--glass-bg);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
}

.hero-lite { padding: 28px 4px 8px; }
.hero-lite h1 { font-size: 44px; line-height: 1.08; margin: 10px 0 10px; letter-spacing: -0.03em; font-weight: 700; }
.hero-lite p { margin: 0; font-size: 18px; }

.muted { color: var(--muted); }

.glass {
  background: var(--glass-bg-strong);
  -webkit-backdrop-filter: saturate(180%) blur(24px);
  backdrop-filter: saturate(180%) blur(24px);
  border: 1px solid var(--border);
  border-radius: 20px;
  box-shadow: var(--shadow);
}

.apps {
  margin-top: 26px;
  display: grid; gap: 16px; grid-template-columns: 1fr 1fr;
}
.app-card {
  padding: 22px;
  display: grid; grid-template-columns: 72px 1fr; gap: 18px; align-items: center;
  color: var(--text);
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.app-card:hover { transform: translateY(-2px); border-color: var(--border-strong); text-decoration: none; }
.app-meta h2 { margin: 0 0 4px; font-size: 22px; letter-spacing: -0.02em; }
.app-meta p { margin: 0 0 8px; }
.arrow { font-size: 14px; color: var(--accent); }

.app-icon {
  width: 72px; height: 72px; border-radius: 18px;
  display: flex; align-items: center; justify-content: center;
  color: white; font-weight: 700; font-size: 30px;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.25), 0 10px 24px rgba(0,0,0,0.12);
  letter-spacing: -0.02em;
}
.fastra-icon { background: linear-gradient(160deg, var(--fastra-a), var(--fastra-b)); color: #0a2a1f; }
.setent-icon { background: linear-gradient(160deg, var(--setent-a), var(--setent-b)); }

.note { margin-top: 22px; padding: 20px 22px; }
.note h3 { margin: 0 0 6px; font-weight: 600; }

.site-footer {
  margin-top: auto;
  padding: 18px 20px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 14px;
  background: var(--glass-bg);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
}
.footer-inner { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; padding: 0 0; }
.footer-inner a { color: var(--muted); }
.footer-inner a:hover { color: var(--text); }
.dot { opacity: .5; }

/* App detail pages */
.app-hero {
  display: grid; grid-template-columns: 112px 1fr; gap: 20px; align-items: center;
  padding: 24px; margin-top: 8px;
}
.app-hero .app-icon { width: 112px; height: 112px; border-radius: 26px; font-size: 46px; }
.app-hero h1 { margin: 0 0 6px; font-size: 38px; letter-spacing: -0.03em; line-height: 1.08; }
.app-hero p.lead { margin: 0; font-size: 18px; color: var(--muted); }

.cta-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 14px; }
.cta {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 16px; border-radius: 12px;
  background: var(--text); color: var(--bg);
  font-weight: 600; font-size: 15px;
}
.cta.secondary { background: transparent; color: var(--text); border: 1px solid var(--border-strong); }
.cta:hover { text-decoration: none; opacity: .9; }

.features {
  margin-top: 20px;
  display: grid; gap: 14px; grid-template-columns: repeat(3, 1fr);
}
.features .card { padding: 18px; border-radius: 16px; }
.features h4 { margin: 0 0 6px; font-weight: 600; font-size: 16px; }
.features p { margin: 0; color: var(--muted); font-size: 14.5px; }

.section-card { margin-top: 22px; padding: 24px; }
.section-card h2 { margin: 0 0 8px; font-size: 22px; letter-spacing: -0.02em; }
.section-card h3 { margin: 22px 0 6px; font-size: 17px; font-weight: 600; }
.section-card ul { padding-left: 20px; margin: 6px 0 0; }
.section-card li { margin: 4px 0; }
.section-card p { margin: 6px 0; }

.back-link { display: inline-block; margin-bottom: 8px; color: var(--muted); font-size: 14px; }
.back-link:hover { color: var(--text); text-decoration: none; }

@media (max-width: 800px) {
  .apps { grid-template-columns: 1fr; }
  .features { grid-template-columns: 1fr; }
  .hero-lite h1 { font-size: 34px; }
  .app-hero { grid-template-columns: 88px 1fr; }
  .app-hero .app-icon { width: 88px; height: 88px; border-radius: 20px; font-size: 36px; }
  .app-hero h1 { font-size: 30px; }
}