/* ===== Daily Hub - 全局样式 ===== */

:root {
  --bg: #0f0f13;
  --surface: #1a1a24;
  --surface-hover: #242436;
  --border: #2a2a3a;
  --text: #e4e4ec;
  --text-secondary: #8888a0;
  --accent: #7c5cfc;
  --accent-glow: rgba(124, 92, 252, 0.25);
  --green: #34d399;
  --red: #f87171;
  --radius: 14px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC',
    'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.6;
}

/* ===== Header ===== */
.hub-header {
  text-align: center;
  padding: 48px 24px 32px;
}

.hub-header h1 {
  font-size: 2.2rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent), #a78bfa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 8px;
}

.hub-date {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-bottom: 4px;
}

.hub-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  opacity: 0.8;
}

/* ===== Grid ===== */
.hub-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 20px;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px 48px;
}

/* ===== Card ===== */
.hub-card {
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  text-decoration: none;
  color: var(--text);
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
  cursor: pointer;
}

.hub-card:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
  box-shadow: 0 8px 32px var(--accent-glow);
}

.card-emoji {
  font-size: 2rem;
  margin-bottom: 12px;
}

.card-title {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: #f0f0f8;
}

.card-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  margin-bottom: 12px;
}

.card-snippet {
  flex: 1;
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.55;
  margin-bottom: 12px;
  padding: 12px;
  background: rgba(255, 255, 255, 0.03);
  border-radius: 8px;
  border-left: 3px solid var(--border);
}

.card-snippet p {
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-error {
  color: var(--red) !important;
  font-size: 0.82rem;
}

.card-meta {
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}

.card-time {
  font-size: 0.78rem;
  color: var(--text-secondary);
  opacity: 0.7;
}

/* ===== Footer ===== */
.hub-footer {
  text-align: center;
  padding: 24px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  border-top: 1px solid var(--border);
}

.hub-footer a {
  color: var(--accent);
  text-decoration: none;
}

.hub-footer a:hover {
  text-decoration: underline;
}

/* ===== Responsive ===== */
@media (max-width: 720px) {
  .hub-grid {
    grid-template-columns: 1fr;
    padding: 0 16px 32px;
  }

  .hub-header h1 {
    font-size: 1.6rem;
  }

  .hub-header {
    padding: 32px 16px 24px;
  }
}