/* Topic List Page Styles */

/* Page Hero */
.page-hero {
  position: relative;
  background: linear-gradient(138deg, rgba(37, 99, 235, 0.95) 0%, rgba(76, 29, 149, 0.93) 55%, rgba(147, 51, 234, 0.88) 100%);
  color: #fff;
  border-radius: 0 0 2.5rem 2.5rem;
  padding: 5rem 0 4rem;
  box-shadow: 0 28px 52px rgba(37, 99, 235, 0.32);
  overflow: hidden;
}

.page-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 65%, rgba(255, 255, 255, 0.24), transparent 70%);
  z-index: 0;
  pointer-events: none;
}

.page-hero .hero-body {
  position: relative;
  z-index: 1;
}

/* Hero Meta */
.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2.5rem;
}

.hero-meta .meta-card {
  background: rgba(255, 255, 255, 0.09);
  padding: var(--space-lg) var(--space-xl);
  border-radius: var(--radius-2xl);
  min-width: 10rem;
  text-align: center;
}

.hero-meta .meta-card strong {
  display: block;
  font-size: var(--font-size-h4);
}

/* Filters Section */
.filters-section {
  margin-top: -3.6rem;
  position: relative;
  z-index: 2;
}

.filter-card {
  background: rgb(221, 203, 194);
  border-radius: var(--radius-2xl);
  padding: var(--space-2xl);
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--brand-border);
}

.filter-card label {
  font-weight: 600;
  color: var(--brand-dark);
}

.results-summary {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  margin-top: 1.5rem;
  padding-top: 1.2rem;
  border-top: 1px dashed rgba(15, 23, 42, 0.14);
}

/* Topic Card - List Page Variant */
.topic-card {
  border-radius: var(--radius-xl);
  border: 1px solid var(--brand-border);
  box-shadow: var(--shadow-lg);
  background: rgb(224, 225, 227);
  padding: var(--space-xl);
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  position: relative;
  overflow: hidden;
  transition: box-shadow 0.25s ease;
}

.topic-card:hover {
  box-shadow: 0 22px 50px rgba(37, 99, 235, 0.13);
}

.topic-card__header {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.topic-card__title {
  font-size: var(--font-size-h5);
  font-weight: 700;
  margin: 0;
  color: var(--brand-dark);
  line-height: var(--line-height-snug);
}

.topic-card__title:hover {
  color: var(--brand-primary);
}

.topic-card__excerpt {
  color: var(--brand-muted);
  margin: 0;
  font-size: var(--font-size-md);
  line-height: var(--line-height-relaxed);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.topic-card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding-top: 0.75rem;
  margin-top: 0.25rem;
  border-top: 1px dashed rgba(15, 23, 42, 0.1);
}

.topic-card__ai {
  display: flex;
  gap: 0.75rem;
  padding: 0.85rem 1rem;
  border-radius: 1rem;
  border: 1px solid var(--brand-border);
  background: #f8fafc;
  margin-top: 0.5rem;
}

.topic-card__ai-icon {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  background: rgba(37, 99, 235, 0.12);
  color: var(--brand-primary);
  flex-shrink: 0;
}

.topic-card__ai-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.topic-card__ai-head {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-weight: 600;
  color: var(--brand-dark);
  font-size: 0.9rem;
}

.topic-card__ai-summary {
  margin: 0;
  color: var(--brand-muted);
  font-size: 0.85rem;
  line-height: 1.5;
}

.topic-card__ai-updated {
  color: var(--brand-muted);
  font-size: 0.75rem;
}

.topic-card__ai.is-support {
  border-color: rgba(25, 135, 84, 0.38);
  background: rgba(25, 135, 84, 0.08);
}

.topic-card__ai.is-support .topic-card__ai-icon {
  background: rgba(25, 135, 84, 0.18);
  color: #198754;
}

.topic-card__ai.is-support .topic-card__ai-head {
  color: #0f5132;
}

.topic-card__ai.is-oppose {
  border-color: rgba(220, 53, 69, 0.38);
  background: rgba(220, 53, 69, 0.08);
}

.topic-card__ai.is-oppose .topic-card__ai-icon {
  background: rgba(220, 53, 69, 0.18);
  color: #dc3545;
}

.topic-card__ai.is-oppose .topic-card__ai-head {
  color: #842029;
}

.topic-card__ai.is-neutral {
  border-color: rgba(255, 193, 7, 0.4);
  background: #fffbf0;
}

.topic-card__ai.is-neutral .topic-card__ai-icon {
  background: #ffc107;
  color: #000;
}

.topic-card__ai.is-neutral .topic-card__ai-head {
  color: #664d03;
}

.topic-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  padding-top: 0.6rem;
  margin-top: auto;
  border-top: 1px dashed rgba(15, 23, 42, 0.1);
}

.meta-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-xs) var(--space-md);
  border-radius: var(--radius-full);
  background: #eef2ff;
  color: #374151;
  font-size: var(--font-size-xs);
  font-weight: 600;
}

.meta-chip.text-success {
  background: rgba(25, 135, 84, 0.14);
  color: #0f5132;
}

.meta-chip.text-danger {
  background: rgba(220, 53, 69, 0.14);
  color: #842029;
}

.meta-chip.text-muted {
  background: #f1f5f9;
  color: #475569;
}

.meta-chip i {
  font-size: 1rem;
}

.tag-badge {
  background: rgba(37, 99, 235, 0.14);
  color: var(--brand-primary);
  font-weight: 600;
}

/* Insights Section */
.insights-section {
  background: rgba(37, 99, 235, 0.12);
  border-radius: var(--radius-2xl);
  padding: var(--space-3xl);
  position: relative;
  overflow: hidden;
}

.insights-section::after {
  content: "";
  position: absolute;
  inset: auto -35% -55% -35%;
  height: 100%;
  background: radial-gradient(circle, rgba(76, 29, 149, 0.2), transparent 70%);
  opacity: 0.6;
}

.insight-card {
  position: relative;
  z-index: 1;
  background: rgb(248, 250, 248);
  border-radius: var(--radius-2xl);
  padding: var(--space-2xl);
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--brand-border);
  height: 100%;
}

/* Responsive Styles */
@media (max-width: 991.98px) {
  .page-hero {
    border-radius: 0 0 2rem 2rem;
  }

  .filters-section {
    margin-top: -2.6rem;
  }

  .filter-card {
    padding: var(--space-2xl);
  }
}

@media (max-width: 575.98px) {
  .filters-section {
    margin-top: -1.5rem;
  }

  .hero-meta .meta-card {
    min-width: calc(50% - 0.5rem);
    padding: 0.9rem 0.8rem;
  }

  .insights-section {
    padding: var(--space-2xl) var(--space-xl);
  }
}