/* ========== News Page Styles ========== */

/* ---- Hero Banner ---- */
.news-hero {
  position: relative;
  background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 40%, #1d4ed8 75%, #06b6d4 100%);
  padding: 72px 24px 80px;
  overflow: hidden;
  text-align: center;
}

/* Floating orbs */
.news-hero::before {
  content: '';
  position: absolute;
  top: -80px; left: -80px;
  width: 320px; height: 320px;
  background: radial-gradient(circle, rgba(99,102,241,0.25) 0%, transparent 70%);
  border-radius: 50%;
  animation: floatOrb 8s ease-in-out infinite;
}
.news-hero::after {
  content: '';
  position: absolute;
  bottom: -60px; right: -60px;
  width: 280px; height: 280px;
  background: radial-gradient(circle, rgba(6,182,212,0.2) 0%, transparent 70%);
  border-radius: 50%;
  animation: floatOrb 10s ease-in-out infinite reverse;
}
@keyframes floatOrb {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33%       { transform: translate(20px, -20px) scale(1.05); }
  66%       { transform: translate(-15px, 15px) scale(0.97); }
}

/* Animated grid background */
.news-hero-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: linear-gradient(to bottom, transparent 0%, black 20%, black 80%, transparent 100%);
}

.news-hero-content {
  position: relative; z-index: 2;
  max-width: 780px; margin: 0 auto;
}

/* Live badge */
.news-live-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(239,68,68,0.15);
  border: 1px solid rgba(239,68,68,0.3);
  border-radius: 20px; padding: 6px 16px;
  margin-bottom: 24px;
  color: #fca5a5; font-size: 13px; font-weight: 600;
}
.news-live-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: #ef4444;
  animation: livePulse 1.5s ease-in-out infinite;
}
@keyframes livePulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.4; transform: scale(0.7); }
}

.news-hero h1 {
  font-size: clamp(28px, 5vw, 52px);
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin-bottom: 16px;
}
.news-hero h1 .accent {
  background: linear-gradient(90deg, #60a5fa, #a78bfa, #34d399);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.news-hero-desc {
  font-size: 16px;
  color: rgba(255,255,255,0.7);
  line-height: 1.7;
  max-width: 580px;
  margin: 0 auto 32px;
}

/* Stats row */
.news-hero-stats {
  display: flex; justify-content: center; gap: 40px; flex-wrap: wrap;
}
.news-hero-stat {
  display: flex; flex-direction: column; align-items: center; gap: 4px;
}
.news-hero-stat .stat-num {
  font-size: 28px; font-weight: 800; color: #fff;
}
.news-hero-stat .stat-label {
  font-size: 12px; color: rgba(255,255,255,0.5); letter-spacing: 0.5px;
}

/* Scroll indicator */
.scroll-indicator {
  position: absolute; bottom: 24px; left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 6px;
  color: rgba(255,255,255,0.4); font-size: 11px;
  animation: bounceDown 2s ease-in-out infinite;
}
.scroll-indicator svg { width: 20px; height: 20px; }
@keyframes bounceDown {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(6px); }
}

/* ---- Filter Bar ---- */
.news-filter-bar {
  position: sticky; top: 60px; z-index: 90;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
}
.news-filter-inner {
  max-width: 1100px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; height: 56px;
}
.news-filter-tabs {
  display: flex; gap: 2px; align-items: center;
  overflow-x: auto; -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.news-filter-tabs::-webkit-scrollbar { display: none; }
.news-filter-tab {
  white-space: nowrap;
  padding: 6px 18px; border-radius: 20px;
  font-size: 13.5px; font-weight: 500;
  color: var(--text-secondary);
  transition: all var(--transition);
}
.news-filter-tab:hover { color: var(--text-primary); background: var(--bg); }
.news-filter-tab.active {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 2px 8px rgba(37,99,235,0.3);
}
.news-sort-select {
  display: flex; align-items: center; gap: 6px;
  padding: 6px 14px; border-radius: 8px;
  border: 1px solid var(--border);
  font-size: 13px; color: var(--text-secondary);
  background: var(--bg-white); cursor: pointer;
  transition: border-color var(--transition);
  white-space: nowrap; flex-shrink: 0;
}
.news-sort-select:focus { outline: none; border-color: var(--primary); }

/* ---- Main Layout ---- */
.news-layout {
  max-width: 1100px; margin: 0 auto;
  padding: 32px 24px;
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 28px;
  align-items: start;
}
@media (max-width: 900px) {
  .news-layout { grid-template-columns: 1fr; }
  .news-sidebar { display: none; }
}

/* ---- News Cards ---- */
.news-list { display: flex; flex-direction: column; gap: 16px; }

.news-card {
  background: var(--bg-white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 22px 24px;
  transition: all var(--transition);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}
.news-card::before {
  content: '';
  position: absolute; left: 0; top: 0; bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--primary), var(--accent));
  border-radius: 0 2px 2px 0;
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 0.3s cubic-bezier(0.4,0,0.2,1);
}
.news-card:hover {
  border-color: rgba(37,99,235,0.25);
  box-shadow: 0 4px 20px rgba(37,99,235,0.08);
  transform: translateX(3px);
}
.news-card:hover::before { transform: scaleY(1); }

.news-card-header {
  display: flex; align-items: flex-start; justify-content: space-between;
  gap: 16px; margin-bottom: 10px;
}
.news-card-meta {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
}
.news-source-badge {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 3px 10px; border-radius: 20px;
  font-size: 11px; font-weight: 600;
  background: rgba(37,99,235,0.08); color: var(--primary);
}
.news-source-badge .src-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--primary);
}
.news-category-tag {
  font-size: 11px; padding: 3px 9px; border-radius: 20px;
  font-weight: 500;
}
.news-time {
  display: flex; align-items: center; gap: 4px;
  font-size: 12px; color: var(--text-light);
  flex-shrink: 0;
}
.news-time svg { width: 13px; height: 13px; }

.news-card-title {
  font-size: 17px; font-weight: 700;
  color: var(--text-primary);
  line-height: 1.4;
  margin-bottom: 10px;
  transition: color var(--transition);
}
.news-card:hover .news-card-title { color: var(--primary); }

.news-card-excerpt {
  font-size: 14px; color: var(--text-secondary);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 14px;
}

.news-card-footer {
  display: flex; align-items: center; justify-content: space-between;
  padding-top: 12px;
  border-top: 1px solid var(--border-light);
}
.news-card-tags { display: flex; gap: 6px; flex-wrap: wrap; }
.news-card-tag {
  font-size: 11px; padding: 3px 9px; border-radius: 6px;
  background: var(--bg); color: var(--text-secondary);
}
.news-card-actions {
  display: flex; align-items: center; gap: 12px;
}
.news-action-btn {
  display: flex; align-items: center; gap: 4px;
  font-size: 12px; color: var(--text-light);
  transition: color var(--transition);
}
.news-action-btn svg { width: 15px; height: 15px; }
.news-action-btn:hover { color: var(--primary); }
.news-action-btn.liked { color: var(--danger); }
.news-action-btn.bookmarked { color: var(--warning); }

/* Featured card (first item) */
.news-card.featured {
  background: linear-gradient(135deg, #fafbff 0%, #f0f4ff 100%);
  border-color: rgba(37,99,235,0.2);
}
.news-card.featured .news-card-title { font-size: 20px; }
.featured-label {
  display: inline-flex; align-items: center; gap: 5px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  color: #fff; font-size: 11px; font-weight: 700;
  padding: 3px 10px; border-radius: 20px; margin-bottom: 12px;
}
.featured-label svg { width: 12px; height: 12px; }

/* ---- Load More / Skeleton ---- */
.news-load-trigger {
  height: 60px;
  display: flex; align-items: center; justify-content: center;
}
.load-spinner {
  display: flex; align-items: center; gap: 10px;
  font-size: 14px; color: var(--text-light);
  opacity: 0; transition: opacity 0.3s;
}
.load-spinner.visible { opacity: 1; }
.spinner-dots {
  display: flex; gap: 5px;
}
.spinner-dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--primary); opacity: 0.3;
  animation: dotBounce 1.2s ease-in-out infinite;
}
.spinner-dot:nth-child(2) { animation-delay: 0.2s; }
.spinner-dot:nth-child(3) { animation-delay: 0.4s; }
@keyframes dotBounce {
  0%, 80%, 100% { opacity: 0.3; transform: scale(0.8); }
  40%           { opacity: 1; transform: scale(1.2); }
}

.news-end-msg {
  text-align: center; padding: 20px;
  font-size: 14px; color: var(--text-light);
  display: none;
}
.news-end-msg.visible { display: block; }

/* Skeleton card */
.news-card-skeleton {
  background: var(--bg-white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 22px 24px;
}
.sk-line {
  height: 14px; border-radius: 6px; margin-bottom: 10px;
}
.sk-line.short { width: 30%; }
.sk-line.medium { width: 60%; }
.sk-line.long { width: 90%; }
.sk-line.full { width: 100%; }
.sk-title { height: 20px; width: 80%; border-radius: 6px; margin-bottom: 14px; }

/* ---- Sidebar ---- */
.news-sidebar { display: flex; flex-direction: column; gap: 20px; }
.ns-card {
  background: var(--bg-white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 18px;
}
.ns-card h3 {
  font-size: 15px; font-weight: 700;
  margin-bottom: 14px;
  display: flex; align-items: center; gap: 7px;
  color: var(--text-primary);
}
.ns-card h3 svg { width: 18px; height: 18px; color: var(--primary); }

/* Hot news list */
.hot-news-list { display: flex; flex-direction: column; gap: 12px; }
.hot-news-item {
  display: flex; gap: 10px; align-items: flex-start;
  cursor: pointer; transition: all var(--transition);
  padding: 6px; border-radius: var(--radius-sm);
}
.hot-news-item:hover { background: var(--bg); }
.hot-news-rank {
  width: 22px; height: 22px; flex-shrink: 0;
  border-radius: 6px;
  display: flex; align-items: center; justify-content: center;
  font-size: 11px; font-weight: 800;
}
.hot-news-rank.r1 { background: #ef4444; color: #fff; }
.hot-news-rank.r2 { background: #f97316; color: #fff; }
.hot-news-rank.r3 { background: #f59e0b; color: #fff; }
.hot-news-rank.rn { background: var(--bg); color: var(--text-light); }
.hot-news-title {
  font-size: 13px; color: var(--text-primary); line-height: 1.5;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}

/* Source list */
.source-list { display: flex; flex-direction: column; gap: 8px; }
.source-item {
  display: flex; align-items: center; justify-content: space-between;
  padding: 8px 10px; border-radius: var(--radius-sm);
  cursor: pointer; transition: background var(--transition);
}
.source-item:hover { background: var(--bg); }
.source-item-left { display: flex; align-items: center; gap: 10px; }
.source-avatar {
  width: 30px; height: 30px; border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 13px; font-weight: 700; color: #fff;
}
.source-name { font-size: 13px; font-weight: 600; color: var(--text-primary); }
.source-count { font-size: 11px; color: var(--text-light); }
.source-follow {
  font-size: 12px; padding: 4px 12px; border-radius: 20px;
  border: 1px solid var(--border); color: var(--text-secondary);
  transition: all var(--transition);
}
.source-follow:hover { border-color: var(--primary); color: var(--primary); }
.source-follow.following {
  background: var(--primary); color: #fff; border-color: var(--primary);
}

/* Subscribe box */
.subscribe-box {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: var(--radius-md); padding: 20px;
  color: #fff; text-align: center;
}
.subscribe-box h4 { font-size: 16px; font-weight: 700; margin-bottom: 6px; }
.subscribe-box p { font-size: 12px; opacity: 0.8; margin-bottom: 14px; line-height: 1.5; }
.subscribe-input-wrap { display: flex; flex-direction: column; gap: 8px; }
.subscribe-input-wrap input {
  width: 100%; padding: 9px 14px; border-radius: 8px;
  border: none; font-size: 13px;
  background: rgba(255,255,255,0.15);
  color: #fff; outline: none;
}
.subscribe-input-wrap input::placeholder { color: rgba(255,255,255,0.6); }
.subscribe-btn {
  width: 100%; padding: 9px; border-radius: 8px;
  background: #fff; color: var(--primary);
  font-size: 13px; font-weight: 700;
  transition: all var(--transition);
}
.subscribe-btn:hover { background: var(--bg); transform: translateY(-1px); }

/* ---- Card Enter Animation ---- */
@keyframes cardSlideIn {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}
.news-card.entering {
  animation: cardSlideIn 0.4s cubic-bezier(0.16, 1, 0.3, 1) both;
}

/* ---- Responsive ---- */
@media (max-width: 600px) {
  .news-hero { padding: 48px 16px 60px; }
  .news-hero h1 { font-size: 26px; }
  .news-filter-inner { height: auto; padding: 10px 0; flex-direction: column; align-items: flex-start; }
  .news-layout { padding: 16px; }
  .news-card { padding: 16px; }
  .news-card-title { font-size: 15px; }
  .news-hero-stats { gap: 24px; }
}

@media (prefers-reduced-motion: reduce) {
  .news-card, .news-card.entering { animation: none; }
  .news-hero::before, .news-hero::after { animation: none; }
  .news-live-dot { animation: none; }
  .spinner-dot { animation: none; }
}