/* ==========================================================================
   COMPONENTS dùng chung giữa các trang
   .breadcrumb, .weather-summary, .city-grid, .city-card, .content-panel,
   .link-grid, .place-link, .country-link, .faq
   ========================================================================== */

/* --------------------------------------------------------------------------
   Breadcrumb
   -------------------------------------------------------------------------- */

.breadcrumb {
  padding: 14px 0 6px;
  font-size: 13.5px;
  color: var(--color-subtext);
}

.breadcrumb__link {
  color: var(--color-subtext);
}

.breadcrumb__link:hover {
  color: var(--color-primary);
}

.breadcrumb__sep {
  margin: 0 8px;
  opacity: 0.5;
}

/* --------------------------------------------------------------------------
   Weather summary — đoạn mô tả thời tiết (nội dung SEO)
   -------------------------------------------------------------------------- */

.weather-summary {
  margin: 24px 0;
  padding: 18px 24px;
  background: #EEF4FB;
  border-left: 4px solid var(--color-primary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-size: 15px;
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
   City card + lưới thành phố
   -------------------------------------------------------------------------- */

.city-grid {
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
}

.city-card {
  padding: 16px 18px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-dark);
  text-decoration: none !important;
  transition: all 0.2s;
}

.city-card:hover {
  transform: translateY(-2px);
  border-color: var(--color-border-hover);
  box-shadow: var(--shadow-hover);
  color: var(--color-dark);
}

.city-card__icon {
  width: 46px;
  height: 46px;
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.08));
}

.city-card__name {
  font-size: 15.5px;
  font-weight: 600;
}

.city-card__sub {
  font-size: 13px;
  color: var(--color-subtext);
}

.city-card__temp {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-dark);
}

.city-card__arrow {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-primary);
}

/* --------------------------------------------------------------------------
   Content panel — hộp trắng có tiêu đề (vùng miền, châu lục, khí hậu)
   -------------------------------------------------------------------------- */

.content-panel {
  padding: 24px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  scroll-margin-top: var(--header-offset);
}

.content-panel__title {
  margin: 0 0 16px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--color-hover);
  font-size: 19px;
  font-weight: 700;
  color: var(--color-dark);
}

.content-panel__title--lg {
  margin-bottom: 18px;
  font-size: 20px;
}

.content-panel__text {
  margin: 0 0 16px;
  line-height: 1.7;
  color: var(--color-text-muted);
}

.content-panel__note {
  font-size: 13.5px;
  color: var(--color-subtext);
}

/* --------------------------------------------------------------------------
   Link grid — lưới liên kết địa điểm / quốc gia
   -------------------------------------------------------------------------- */

.link-grid {
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 10px;
}

.link-grid--wide {
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
}

/* Liên kết tỉnh/thành */
.place-link {
  padding: 10px 14px;
  border-radius: var(--radius-xs);
  background: var(--color-surface-alt);
  font-size: 14.5px;
  color: var(--color-dark);
  text-decoration: none !important;
  transition: background 0.15s;
}

.place-link:hover {
  background: var(--color-hover);
  color: var(--color-dark);
}

.place-link__name {
  font-weight: 600;
}

.place-link__sub {
  font-size: 12.5px;
  color: var(--color-subtext);
}

/* Liên kết quốc gia */
.country-link {
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 14px;
  color: var(--color-dark);
  text-decoration: none !important;
  transition: background 0.15s;
}

.country-link:hover {
  background: var(--color-tint);
  color: var(--color-dark);
}

.country-link__name {
  font-weight: 500;
}

/* --------------------------------------------------------------------------
   FAQ accordion
   -------------------------------------------------------------------------- */

.faq__item {
  margin-bottom: 12px;
  overflow: hidden;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 14px;
}

.faq__question {
  padding: 16px 20px;
  font-size: 15.5px;
  font-weight: 600;
  cursor: pointer;
  user-select: none;
}

.faq__answer {
  display: none;
  padding: 0 20px 16px;
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--color-text-muted);
}

.faq__item--open .faq__answer {
  display: block;
}

/* --------------------------------------------------------------------------
   Page content — trang thông tin (Giới thiệu, Liên hệ, Chính sách...)
   -------------------------------------------------------------------------- */

.page-content {
  max-width: 800px;
  margin: 32px auto 64px;
  padding: clamp(20px, 4vw, 40px);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.page-content__title {
  margin: 0;
  font-size: clamp(26px, 3vw, 34px);
  letter-spacing: -0.02em;
}

.page-content__meta {
  margin: 6px 0 24px;
  font-size: 14px;
  color: var(--color-subtext);
}

.page-content__body {
  font-size: 16px;
  line-height: 1.75;
  color: var(--color-text-muted);
}

.page-content__body h2 {
  margin: 32px 0 10px;
  font-size: 21px;
  color: var(--color-dark);
}

.page-content__body ul {
  padding-left: 22px;
}

.page-content__body li + li {
  margin-top: 6px;
}