:root {
  --bg: #0f1419;
  --surface: #1a2332;
  --border: #2d3a4f;
  --text: #e7ecf3;
  --muted: #8b9cb3;
  --accent: #5b9fd4;
  --accent-dim: #3d6f9a;
  --hot: #e8a838;
  --up: #4caf82;
  font-family: "Segoe UI", system-ui, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  min-height: 100vh;
}

.wrap {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

.header {
  padding: 2rem 0 1.5rem;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg, #152030 0%, var(--bg) 100%);
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.brand-icon {
  flex-shrink: 0;
  display: block;
}

.brand h1,
h1 {
  margin: 0;
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.tagline {
  margin: 0.35rem 0 0.75rem;
  color: var(--muted);
  font-size: 0.95rem;
}

.meta {
  font-size: 0.8rem;
  color: var(--muted);
  margin-bottom: 1rem;
}

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.filters input,
.filters select {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.5rem 0.75rem;
  border-radius: 8px;
  font-size: 0.9rem;
}

.filters input { flex: 1; min-width: 180px; }

.list-status {
  margin: 1.25rem 0 0.5rem;
  text-align: center;
  font-size: 0.9rem;
  color: var(--muted, #94a3b8);
}

.list-sentinel {
  height: 1px;
  width: 100%;
  pointer-events: none;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1rem;
  padding: 1.5rem 0 3rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem 1.1rem;
  cursor: pointer;
  transition: border-color 0.15s, transform 0.15s;
}

.card:hover {
  border-color: var(--accent-dim);
  transform: translateY(-2px);
}

.card h2 {
  margin: 0 0 0.5rem;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.35;
}

.card h2 a {
  color: inherit;
  text-decoration: none;
}

.card h2 a:hover { color: var(--accent); }

.badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-bottom: 0.5rem;
}

.badge {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.15rem 0.45rem;
  border-radius: 4px;
  background: #243044;
  color: var(--muted);
}

.badge.source-hackernews { color: #ff9f43; }
.badge.source-github { color: #a78bfa; }
.badge.source-reddit { color: #f87171; }
.badge.source-devto { color: #38bdf8; }
.badge.source-ideawave { color: #f472b6; }

.score-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.85rem;
}

.score {
  font-weight: 700;
  color: var(--hot);
  font-size: 1.1rem;
}

.trend-up { color: var(--up); font-size: 0.8rem; }

.summary {
  margin: 0.5rem 0 0;
  font-size: 0.82rem;
  color: var(--muted);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.detail-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(8, 12, 18, 0.72);
  z-index: 90;
}

.detail-backdrop.hidden {
  display: none;
}

body.detail-open {
  overflow: hidden;
}

.detail {
  position: fixed;
  top: 0;
  right: 0;
  width: min(720px, 100%);
  height: 100%;
  max-height: 100vh;
  background: var(--surface);
  border-left: 1px solid var(--border);
  padding: 1.5rem 1.75rem 2rem;
  overflow-y: auto;
  box-shadow: -8px 0 32px rgba(0, 0, 0, 0.45);
  z-index: 100;
}

.detail.hidden {
  display: none;
}

.detail-text p {
  font-size: 0.9rem;
  line-height: 1.55;
  color: var(--text);
  margin: 0 0 0.85rem;
}

.close {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  background: transparent;
  border: none;
  color: var(--muted);
  font-size: 1.5rem;
  cursor: pointer;
  line-height: 1;
}

.detail h2 {
  margin-top: 0;
  padding-right: 2rem;
  font-size: 1.15rem;
}

.detail-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  align-items: center;
  margin: 0.5rem 0 1rem;
}

.btn-copy-prompt {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.5rem 1rem;
  border: 1px solid rgba(126, 200, 240, 0.45);
  border-radius: 10px;
  font-size: 0.85rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  color: #0c1218;
  background: linear-gradient(145deg, #a8dcff 0%, var(--accent) 45%, #4a8fc4 100%);
  box-shadow: 0 2px 14px rgba(91, 159, 212, 0.4);
  transition: transform 0.15s ease, box-shadow 0.15s ease, filter 0.15s ease;
}

.btn-copy-prompt:hover {
  transform: translateY(-1px);
  filter: brightness(1.06);
  box-shadow: 0 4px 18px rgba(91, 159, 212, 0.5);
}

.btn-copy-prompt:active {
  transform: translateY(0);
}

.btn-copy-prompt.is-copied {
  color: #0a1a12;
  border-color: rgba(76, 175, 130, 0.55);
  background: linear-gradient(145deg, #8ee4b8 0%, var(--up) 50%, #3d9a6a 100%);
  box-shadow: 0 2px 14px rgba(76, 175, 130, 0.45);
}

.btn-copy-icon {
  flex-shrink: 0;
  opacity: 0.92;
}

.detail ul {
  padding-left: 1.2rem;
  font-size: 0.9rem;
}

.detail .metrics {
  font-size: 0.85rem;
  color: var(--muted);
  margin: 1rem 0;
}

.detail a.ext {
  color: var(--accent);
  word-break: break-all;
}

@media (min-width: 900px) {
  .detail {
    width: min(840px, 92vw);
  }
}