/* ============================================================
   SafeQR – News Feed / Bảng Tin
   ============================================================ */

:root {
  --red: #b71c1c;
  --red-dark: #931a1a;
  --bg: #f7f5f0;
  --card-bg: #ffffff;
  --text: #1c1c1c;
  --text-soft: #4a4a4a;
  --text-muted: #8a8a86;
  --border: #e8e4db;
  --shadow-sm: 0 2px 6px rgba(47,30,20,0.05);
  --shadow: 0 4px 14px rgba(47,30,20,0.06);
  --radius: 14px;
  --radius-sm: 10px;
  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --ease: 0.22s cubic-bezier(0.4, 0, 0.2, 1);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-tap-highlight-color: transparent; font-size: 16px; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
  min-height: 100vh;
  max-width: 680px;
  margin: 0 auto;
  padding-bottom: 60px;
}

/* ── Header ── */
.news-header {
  background: linear-gradient(165deg, #7f0000, #b71c1c);
  color: #fff;
  padding: 20px 18px 24px;
  position: sticky;
  top: 0;
  z-index: 50;
  box-shadow: 0 4px 20px rgba(127,0,0,0.25);
}
.news-back {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: rgba(255,255,255,0.75);
  text-decoration: none;
  font-size: 0.78rem;
  font-weight: 600;
  margin-bottom: 12px;
  transition: color 0.2s;
}
.news-back:hover { color: #fff; }
.news-header-title h1 {
  font-size: 1.35rem;
  font-weight: 900;
  letter-spacing: -0.4px;
}
.news-header-title p {
  font-size: 0.78rem;
  opacity: 0.7;
  margin-top: 3px;
}

/* ── Filters ── */
.news-filters {
  display: flex;
  gap: 8px;
  padding: 14px 16px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  background: #fff;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 40;
}
.news-filters::-webkit-scrollbar { height: 0; }
.filter-chip {
  padding: 7px 16px;
  border-radius: 20px;
  border: 1.5px solid #ddd;
  background: #fff;
  font-size: 0.76rem;
  font-weight: 600;
  font-family: var(--font);
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--ease);
  color: var(--text-soft);
  flex-shrink: 0;
}
.filter-chip:hover { border-color: var(--red); color: var(--red); }
.filter-chip.active {
  background: var(--red);
  color: #fff;
  border-color: var(--red);
}

/* ── Feed ── */
.news-feed {
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.news-loading {
  text-align: center;
  padding: 40px 20px;
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* ── Post Card ── */
.news-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: all var(--ease);
}
.news-card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}
.news-card.pinned {
  border-left: 4px solid var(--red);
}
.news-card-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 16px 16px 0;
}
.news-agency-icon {
  font-size: 1.5rem;
  line-height: 1;
}
.news-agency-name {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-soft);
}
.news-pin-badge {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  font-size: 0.65rem;
  font-weight: 700;
  color: var(--red);
  background: #ffebee;
  padding: 2px 8px;
  border-radius: 10px;
  margin-left: auto;
}
.news-category-badge {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  font-size: 0.65rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 10px;
  background: #f0f0eb;
  color: var(--text-muted);
}
.news-card-title {
  font-size: 1rem;
  font-weight: 800;
  color: var(--text);
  padding: 10px 16px 6px;
  line-height: 1.3;
}
.news-card-title a {
  color: inherit;
  text-decoration: none;
}
.news-card-title a:hover { color: var(--red); }
.news-card-summary {
  font-size: 0.8rem;
  color: var(--text-soft);
  padding: 0 16px;
  line-height: 1.55;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-card-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  font-size: 0.7rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border);
  margin-top: 10px;
}
.news-card-time {
  display: flex;
  align-items: center;
  gap: 4px;
}

/* ── Detail Modal ── */
.news-detail-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  backdrop-filter: blur(4px);
  z-index: 200;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.news-detail-overlay.visible { display: flex; }
.news-detail {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 24px 20px;
  max-width: 560px;
  width: 100%;
  max-height: 85vh;
  overflow-y: auto;
  box-shadow: 0 14px 44px rgba(0,0,0,0.15);
  animation: modalIn 0.25s ease;
}
@keyframes modalIn {
  from { transform: translateY(20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}
.news-detail-close {
  float: right;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: none;
  background: #f0f0eb;
  cursor: pointer;
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--ease);
}
.news-detail-close:hover { background: #ddd; }
.news-detail .news-detail-agency {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}
.news-detail .news-detail-agency .icon { font-size: 1.3rem; }
.news-detail .news-detail-agency .name { font-weight: 700; font-size: 0.82rem; }
.news-detail h2 { font-size: 1.2rem; font-weight: 900; margin-bottom: 10px; line-height: 1.3; }
.news-detail .news-detail-content {
  font-size: 0.88rem;
  line-height: 1.7;
  color: var(--text-soft);
  white-space: pre-wrap;
  word-break: break-word;
}
.news-detail .news-detail-time {
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}

/* ── Load More ── */
.news-loadmore {
  text-align: center;
  padding: 8px 16px 24px;
}
.loadmore-btn {
  padding: 10px 32px;
  border-radius: 24px;
  border: 1.5px solid var(--red);
  background: #fff;
  color: var(--red);
  font-weight: 700;
  font-size: 0.82rem;
  font-family: var(--font);
  cursor: pointer;
  transition: all var(--ease);
}
.loadmore-btn:hover { background: var(--red); color: #fff; }
.loadmore-btn:active { transform: scale(0.96); }

/* ── Empty ── */
.news-empty {
  text-align: center;
  padding: 50px 20px;
  color: var(--text-muted);
}
.news-empty .empty-icon { font-size: 3rem; margin-bottom: 12px; }
.news-empty h3 { font-size: 1rem; font-weight: 700; color: var(--text-soft); margin-bottom: 6px; }

/* ── Toast ── */
.toast {
  position: fixed;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%) translateY(18px);
  background: rgba(30,28,26,0.94);
  color: #fff;
  padding: 10px 22px;
  border-radius: 24px;
  font-size: 0.8rem;
  font-weight: 600;
  opacity: 0;
  pointer-events: none;
  transition: all 0.3s ease;
  z-index: 300;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }