:root {
  --bg: #f8fafc;
  --surface: #ffffff;
  --text: #0f172a;
  --muted: #475569;
  --border: #e2e8f0;
  --primary: #2563eb;
  --primary-weak: #e7efff;
  --chip-bg: #eef2f7;
  --shadow: 0 6px 18px rgba(2, 6, 23, 0.06);
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: 'Inter', ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, 'Apple Color Emoji', 'Segoe UI Emoji';
  color: var(--text);
  background: linear-gradient(180deg, #fbfdff 0%, var(--bg) 100%);
}

.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 20px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: saturate(1.2) blur(8px);
  background: color-mix(in oklab, var(--bg) 70%, #ffffff 30%);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; color: inherit; }
.brand-logo { display: block; }
.brand-name { font-weight: 700; letter-spacing: .2px; }
.link { color: var(--muted); text-decoration: none; }
.link:hover { color: var(--text); }

.hero { padding: 56px 0 24px; }
.hero-title { font-size: 40px; line-height: 1.2; letter-spacing: -.02em; margin: 0 0 10px; }
.hero-subtitle { margin: 0; color: var(--muted); }

.search-bar {
  margin-top: 24px;
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 12px 14px;
  box-shadow: var(--shadow);
}
.search-icon { color: var(--muted); }
.search-bar input {
  border: none;
  outline: none;
  width: 100%;
  background: transparent;
  font-size: 16px;
  color: var(--text);
}

.chips { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 16px; }
.chip {
  appearance: none;
  border: 1px solid var(--border);
  background: var(--chip-bg);
  color: var(--muted);
  padding: 8px 12px;
  border-radius: 999px;
  cursor: pointer;
  font-weight: 500;
}
.chip:is(:hover, :focus-visible) { border-color: var(--primary); color: var(--text); }
.chip.active { background: var(--primary-weak); color: var(--primary); border-color: color-mix(in oklab, var(--primary) 40%, var(--border)); }

.apps { padding: 24px 0 64px; }
.apps-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 16px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.card:hover { transform: translateY(-2px); box-shadow: 0 10px 24px rgba(2, 6, 23, 0.08); border-color: color-mix(in oklab, var(--border) 60%, var(--primary) 40%); }
.card-header { display: flex; align-items: center; gap: 12px; }
.card-icon { width: 36px; height: 36px; display: grid; place-items: center; border-radius: 10px; background: #f1f5f9; font-size: 18px; }
.card-title { margin: 0; font-size: 16px; }
.card-desc { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.5; }
.card-tags { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 4px; }
.tag { font-size: 12px; background: #f1f5f9; color: #0f172a; padding: 4px 8px; border-radius: 999px; }
.card-actions { margin-top: 8px; }
.card-actions .open-btn { display: inline-flex; align-items: center; gap: 8px; padding: 8px 10px; border-radius: 10px; background: var(--text); color: #fff; text-decoration: none; font-weight: 600; }
.open-btn:hover { opacity: .9; }

.empty { color: var(--muted); text-align: center; padding: 24px 0; }

.site-footer { border-top: 1px solid var(--border); background: color-mix(in oklab, var(--bg) 70%, #ffffff 30%); }
.footer-inner { height: 64px; display: flex; align-items: center; justify-content: space-between; }

@media (max-width: 980px) {
  .apps-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .hero-title { font-size: 34px; }
}
@media (max-width: 640px) {
  .apps-grid { grid-template-columns: 1fr; }
  .hero { padding-top: 36px; }
}

.fade-in { animation: fadeIn .28s ease-out both; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: translateY(0); } }