/* ── Reset ─────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --blue:     #1d4ed8;
  --blue-dk:  #1e3a8a;
  --surface:  #ffffff;
  --bg:       #f1f5f9;
  --border:   #e2e8f0;
  --text:     #0f172a;
  --muted:    #64748b;
  --radius:   16px;
  --t:        0.22s cubic-bezier(.4,0,.2,1);
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background-color: var(--bg);
  /* dot-grid pattern */
  background-image: radial-gradient(circle, #cbd5e1 1px, transparent 1px);
  background-size: 28px 28px;
  color: var(--text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
}

/* ── Header ───────────────────────────────────────────────────── */
.header {
  position: sticky;
  top: 0;
  z-index: 200;
  background: rgba(255,255,255,.82);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(226,232,240,.8);
}

.header-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 28px;
  height: 62px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

/* ── Logo ─────────────────────────────────────────────────────── */
.logo {
  display: flex;
  align-items: center;
  gap: 11px;
  text-decoration: none;
  flex-shrink: 0;
}

.logo-img {
  width: 38px;
  height: 38px;
  object-fit: contain;
}

.logo-icon-fallback {
  display: none;
  align-items: center;
}

.logo-text-group {
  display: flex;
  flex-direction: column;
  line-height: 1.25;
}

.logo-title {
  font-size: .95rem;
  font-weight: 800;
  color: var(--blue-dk);
  letter-spacing: -.025em;
}

.logo-sub {
  font-size: .65rem;
  color: var(--muted);
  font-weight: 500;
}

/* ── Clock ────────────────────────────────────────────────────── */
.clock {
  font-size: .8rem;
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  color: var(--muted);
  letter-spacing: .04em;
}

/* ── Search Bar ───────────────────────────────────────────────── */
.searchbar {
  background: linear-gradient(135deg, #1e3a8a 0%, #1d4ed8 60%, #2563eb 100%);
  padding: 20px 28px;
}

.search-box {
  position: relative;
  max-width: 560px;
  margin: 0 auto;
}

.search-ico {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--muted);
  pointer-events: none;
}

.search-input {
  width: 100%;
  padding: 13px 18px 13px 46px;
  border: none;
  border-radius: 999px;
  font-size: .9rem;
  background: #fff;
  color: var(--text);
  outline: none;
  box-shadow: 0 2px 16px rgba(0,0,0,.18);
  transition: box-shadow var(--t);
}

.search-input:focus {
  box-shadow: 0 4px 24px rgba(0,0,0,.22), 0 0 0 3px rgba(255,255,255,.35);
}

.search-input::placeholder { color: #94a3b8; }

/* ── Main ─────────────────────────────────────────────────────── */
.main {
  flex: 1;
  max-width: 1120px;
  width: 100%;
  margin: 0 auto;
  padding: 40px 28px 72px;
}

/* ── Grid ─────────────────────────────────────────────────────── */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 16px;
}

/* ── Card ─────────────────────────────────────────────────────── */
.card {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 20px 20px 20px 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  text-decoration: none;
  color: inherit;
  box-shadow: 0 1px 3px rgba(0,0,0,.05);
  transition:
    transform var(--t),
    box-shadow var(--t),
    border-color var(--t);
  position: relative;
  overflow: hidden;
  animation: fadeUp .4s ease both;
}

/* stagger */
.card:nth-child(1) { animation-delay: .05s; }
.card:nth-child(2) { animation-delay: .10s; }
.card:nth-child(3) { animation-delay: .15s; }
.card:nth-child(4) { animation-delay: .20s; }
.card:nth-child(5) { animation-delay: .25s; }
.card:nth-child(6) { animation-delay: .30s; }
.card:nth-child(7) { animation-delay: .35s; }
.card:nth-child(8) { animation-delay: .40s; }
.card:nth-child(9) { animation-delay: .45s; }

.card:hover {
  transform: translateY(-5px);
  box-shadow:
    0 12px 40px rgba(0,0,0,.10),
    0 4px 12px rgba(0,0,0,.06);
  border-color: #bfdbfe;
}

/* shimmer line on left edge */
.card::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--g1, #6366f1), var(--g2, #4338ca));
  opacity: 0;
  transition: opacity var(--t);
  border-radius: 3px 0 0 3px;
}

.card:hover::before { opacity: 1; }

.card.hidden { display: none; }

/* ── Card Icon ────────────────────────────────────────────────── */
.card-icon {
  flex-shrink: 0;
  width: 50px;
  height: 50px;
  border-radius: 13px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--g1, #6366f1), var(--g2, #4338ca));
  box-shadow: 0 4px 14px rgba(0,0,0,.15);
}

/* ── Card Body ────────────────────────────────────────────────── */
.card-body {
  flex: 1;
  min-width: 0;
}

.card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 5px;
}

.card-title {
  font-size: .95rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -.015em;
  line-height: 1.3;
}

.card-arrow {
  flex-shrink: 0;
  color: #94a3b8;
  margin-top: 2px;
  transition: color var(--t), transform var(--t);
}

.card:hover .card-arrow {
  color: var(--blue);
  transform: translate(2px, -2px);
}

.card-desc {
  font-size: .8rem;
  color: var(--muted);
  line-height: 1.55;
  margin-bottom: 8px;
}

/* ── Empty state ──────────────────────────────────────────────── */
.empty {
  display: none;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 80px 24px;
  color: var(--muted);
  text-align: center;
  font-size: .9rem;
}

/* ── Footer ───────────────────────────────────────────────────── */
.footer {
  border-top: 1px solid var(--border);
  background: rgba(255,255,255,.7);
  backdrop-filter: blur(8px);
  text-align: center;
  padding: 18px 24px;
  font-size: .76rem;
  color: var(--muted);
}

/* ── Animation ────────────────────────────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(18px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Responsive ───────────────────────────────────────────────── */
@media (max-width: 600px) {
  .searchbar { padding: 16px; }
  .header-inner { padding: 0 16px; }
  .logo-sub     { display: none; }
  .clock        { display: none; }
  .main         { padding: 28px 14px 52px; }
  .grid         { grid-template-columns: 1fr; gap: 12px; }
  .card-url     { display: none; }
}