/* ==========================================================================
   Portal Style - Light Washi & Amber Gold (首頁總覽明亮和風樣式)
   ========================================================================== */

.portal-hero {
  text-align: center;
  padding: 60px 20px 40px;
  background: radial-gradient(circle at 50% 15%, rgba(180, 138, 40, 0.08) 0%, transparent 65%), #ffffff;
  border-bottom: 1px solid var(--border-light);
}

.portal-crest {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: var(--gold-gradient);
  color: #ffffff;
  font-family: var(--font-serif);
  font-size: 1.45rem;
  font-weight: 900;
  margin-bottom: 16px;
  box-shadow: 0 4px 14px var(--gold-glow);
}

.portal-title {
  font-family: var(--font-serif);
  font-size: clamp(1.9rem, 5vw, 2.7rem);
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 12px;
  letter-spacing: 0.03em;
}

.portal-subtitle {
  color: var(--text-sub);
  font-size: clamp(0.95rem, 2.5vw, 1.12rem);
  max-width: 620px;
  margin: 0 auto 28px;
  line-height: 1.68;
}

/* Filter & Search Bar */
.filter-container {
  max-width: 720px;
  margin: 0 auto 36px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.search-input-wrap {
  position: relative;
}

.search-input {
  width: 100%;
  padding: 13px 20px 13px 44px;
  border-radius: var(--radius-full);
  background: #ffffff;
  border: 1px solid #d1d5db;
  color: var(--text-main);
  font-size: 0.95rem;
  outline: none;
  transition: all 0.25s;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.search-input:focus {
  border-color: var(--gold);
  box-shadow: 0 0 0 3px rgba(180, 138, 40, 0.15);
}

.search-icon {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 1rem;
}

.filter-tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
}

.filter-pill {
  padding: 7px 16px;
  border-radius: var(--radius-full);
  font-size: 0.84rem;
  font-weight: 600;
  cursor: pointer;
  background: #ffffff;
  border: 1px solid #d1d5db;
  color: var(--text-sub);
  transition: all 0.2s;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.03);
}

.filter-pill:hover {
  border-color: var(--gold);
  color: var(--gold-dark);
}

.filter-pill.active {
  background: var(--gold-gradient);
  color: #ffffff;
  border-color: transparent;
  box-shadow: 0 3px 12px rgba(180, 138, 40, 0.35);
}

/* Trip Cards Grid */
.trips-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

@media (min-width: 680px) {
  .trips-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.trip-catalog-card {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-card);
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
  position: relative;
}

.trip-catalog-card:hover {
  transform: translateY(-6px);
  border-color: #cbd5e1;
  box-shadow: var(--shadow-hover);
}

.trip-card-thumb {
  position: relative;
  height: 210px;
  overflow: hidden;
  background: #f1f5f9;
}

.trip-card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.trip-catalog-card:hover .trip-card-thumb img {
  transform: scale(1.06);
}

.trip-badge-overlay {
  position: absolute;
  top: 12px;
  left: 12px;
  display: flex;
  gap: 6px;
}

.trip-badge-pill {
  padding: 4px 10px;
  border-radius: var(--radius-full);
  font-size: 0.74rem;
  font-weight: 700;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  color: var(--text-main);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
}

.trip-path-badge {
  position: absolute;
  bottom: 12px;
  right: 12px;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  font-size: 0.74rem;
  font-family: monospace;
  font-weight: 700;
  background: rgba(255, 255, 255, 0.95);
  color: #1d4ed8;
  border: 1px solid #bfdbfe;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.12);
}

.trip-card-body {
  padding: 22px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.trip-card-period {
  font-size: 0.84rem;
  color: var(--text-gold);
  font-weight: 700;
}

.trip-card-title {
  font-family: var(--font-serif);
  font-size: 1.28rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 8px;
  line-height: 1.35;
}

.trip-card-desc {
  font-size: 0.9rem;
  color: var(--text-sub);
  line-height: 1.65;
  margin-bottom: 16px;
  flex-grow: 1;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.trip-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 20px;
}

.trip-card-tags span {
  font-size: 0.74rem;
  font-weight: 600;
  padding: 4px 9px;
  border-radius: var(--radius-sm);
  background: #f1f5f9;
  color: var(--text-sub);
}

.trip-card-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 18px;
  border-radius: var(--radius-md);
  background: var(--gold-gradient);
  color: #ffffff;
  font-size: 0.92rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  transition: all 0.25s;
  box-shadow: 0 2px 8px rgba(180, 138, 40, 0.25);
}

.trip-catalog-card:hover .trip-card-btn {
  box-shadow: 0 4px 16px rgba(180, 138, 40, 0.45);
}

/* Guide Card (白底質感說明卡) */
.guide-card {
  border: 1px dashed #cbd5e1;
  background: #ffffff;
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-top: 36px;
  box-shadow: var(--shadow-card);
}

.guide-card h3 {
  font-family: var(--font-serif);
  color: var(--text-main);
  font-size: 1.2rem;
  font-weight: 800;
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.guide-card ol {
  padding-left: 20px;
  color: var(--text-sub);
  font-size: 0.92rem;
  line-height: 1.85;
}

.guide-card code {
  background: #eff6ff;
  border: 1px solid #dbeafe;
  padding: 2px 7px;
  border-radius: 4px;
  color: #1d4ed8;
  font-family: monospace;
  font-weight: 600;
}