/* ============================================================
   ATLAS GUIDE — BEST TIME TO VISIT
   tool-btv.css  |  /tools/best-time-to-visit.html
   ============================================================ */

/* ===== MONTH PICKER ===== */
.month-picker { margin-bottom: 36px; }
.month-picker__label {
  font-size: 11px; font-weight: 700; letter-spacing: .12em;
  text-transform: uppercase; color: var(--ink-soft); margin-bottom: 12px;
}
.month-grid {
  display: grid; grid-template-columns: repeat(12, 1fr); gap: 6px;
}
.month-btn {
  background: var(--white); border: 1.5px solid var(--border);
  border-radius: 10px; padding: 10px 4px 8px; cursor: pointer;
  display: flex; flex-direction: column; align-items: center; gap: 3px;
  transition: border-color .18s, background .18s, box-shadow .18s, transform .15s;
  font-family: var(--font-body);
}
.month-btn:hover { border-color: var(--teal); background: var(--teal-dim); transform: translateY(-1px); }
.month-btn.active {
  background: var(--teal); border-color: var(--teal);
  box-shadow: 0 4px 14px rgba(26,107,95,.28);
}
.month-btn__name { font-size: 13px; font-weight: 600; color: var(--ink); line-height: 1; }
.month-btn__season { font-size: 8px; text-transform: uppercase; letter-spacing: .07em; color: var(--ink-soft); line-height: 1; }
.month-btn.active .month-btn__name,
.month-btn.active .month-btn__season { color: var(--white); }

/* ===== FILTERS ===== */
.btv-filters {
  display: flex; gap: 8px; align-items: center; flex-wrap: wrap;
  padding: 14px 18px; background: var(--sand);
  border-radius: var(--radius-sm); margin-bottom: 32px; min-height: 58px;
}
.btv-filters__label {
  font-size: 11px; font-weight: 700; color: var(--ink-soft);
  text-transform: uppercase; letter-spacing: .08em; flex-shrink: 0;
}
.btv-filters__sep { width: 1px; height: 18px; background: var(--border); flex-shrink: 0; }

.filter-btn {
  background: var(--white); border: 1.5px solid var(--border);
  border-radius: 20px; padding: 6px 13px;
  font-size: 12px; font-weight: 600; color: var(--ink-mid);
  cursor: pointer; font-family: var(--font-body); transition: all .16s; white-space: nowrap;
}
.filter-btn:hover { border-color: var(--teal); color: var(--teal); }
.filter-btn.active { background: var(--teal); border-color: var(--teal); color: var(--white); }

.filter-continent {
  background: var(--white); border: 1.5px solid var(--border);
  border-radius: 20px; padding: 6px 28px 6px 13px;
  font-size: 12px; font-weight: 600; color: var(--ink-mid);
  cursor: pointer; font-family: var(--font-body); transition: all .16s;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M0 0l5 6 5-6z' fill='%236B6B6B'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 10px center;
}
.filter-continent:hover { border-color: var(--teal); }
.filter-continent:focus { outline: none; border-color: var(--teal); box-shadow: 0 0 0 3px rgba(26,107,95,.1); }

/* ===== LEGEND ===== */
.btv-legend {
  display: flex; align-items: center; gap: 20px; flex-wrap: wrap;
  margin-bottom: 24px; padding-bottom: 20px; border-bottom: 1px solid var(--border-soft);
}
.btv-legend__label {
  font-size: 11px; font-weight: 700; text-transform: uppercase;
  letter-spacing: .08em; color: var(--ink-soft); flex-shrink: 0;
}
.btv-legend__items { display: flex; gap: 16px; flex-wrap: wrap; }
.btv-legend__item { display: flex; align-items: center; gap: 7px; font-size: 12px; color: var(--ink-mid); }
.btv-legend__dot { width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0; }

/* ===== RESULTS HEADER ===== */
.btv-results-header {
  display: flex; align-items: baseline;
  justify-content: space-between; gap: 16px;
  margin-bottom: 24px; flex-wrap: wrap;
}
.btv-results-title { font-family: var(--font-display); font-size: 1.35rem; font-weight: 700; color: var(--ink); }
.btv-results-meta  { font-size: 13px; color: var(--ink-soft); font-style: italic; }

/* ===== DESTINATION GRID ===== */
.btv-grid {
  display: grid; grid-template-columns: repeat(3,1fr); gap: 18px;
  transition: opacity .25s, transform .25s;
}

/* ===== DESTINATION CARD ===== */
.btv-card {
  background: var(--white); border: 1.5px solid var(--border);
  border-radius: var(--radius); overflow: hidden;
  cursor: pointer;
  transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
}
.btv-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: transparent; }
.btv-card:focus { outline: 3px solid var(--teal); outline-offset: 2px; }

.btv-card__accent { height: 4px; width: 100%; flex-shrink: 0; }
.btv-card__body   { padding: 16px 18px 18px; }

.btv-card__top {
  display: flex; align-items: flex-start;
  justify-content: space-between; gap: 10px; margin-bottom: 10px;
}
.btv-card__name {
  font-family: var(--font-display); font-size: 1.05rem;
  font-weight: 700; color: var(--ink); line-height: 1.2;
}
.btv-card__country {
  font-size: 11px; color: var(--ink-soft); margin-top: 2px;
  text-transform: uppercase; letter-spacing: .06em;
}

/* Rating pill */
.btv-rating { font-size: 10px; font-weight: 700; padding: 4px 9px; border-radius: 20px; white-space: nowrap; flex-shrink: 0; letter-spacing: .03em; }
.btv-rating--peak  { background: rgba(26,107,95,.12);  color: var(--rating-peak); }
.btv-rating--great { background: rgba(45,106,79,.12);  color: var(--rating-great); }
.btv-rating--good  { background: rgba(139,106,26,.12); color: var(--rating-good); }

.btv-card__desc {
  font-size: .82rem; color: var(--ink-soft); line-height: 1.55; margin-bottom: 12px;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.btv-card__tags { display: flex; gap: 5px; flex-wrap: wrap; margin-bottom: 12px; }
.btv-card__tag  { font-size: 10px; font-weight: 600; padding: 3px 8px; border-radius: 20px; background: var(--sand); color: var(--ink-mid); }

.btv-card__footer {
  display: flex; align-items: center; justify-content: space-between;
  padding-top: 10px; border-top: 1px solid var(--border-soft);
}
.btv-card__climate { display: flex; align-items: center; gap: 6px; font-size: 11px; color: var(--ink-soft); }
.btv-card__climate-dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
.btv-card__budget  { font-size: 12px; font-weight: 700; color: var(--ink-mid); letter-spacing: .05em; }

/* ===== EMPTY STATE ===== */
.btv-empty { grid-column: 1 / -1; text-align: center; padding: 60px 24px; color: var(--ink-soft); }
.btv-empty__icon { font-size: 3rem; margin-bottom: 16px; display: block; }
.btv-empty p { font-size: 1rem; line-height: 1.6; }

/* ===== DETAIL PANEL ===== */
.btv-detail {
  grid-column: 1 / -1; background: var(--white);
  border: 1.5px solid var(--teal); border-radius: var(--radius);
  padding: 28px; position: relative; box-shadow: var(--shadow-md); margin-top: 4px;
}
.btv-detail__close {
  position: absolute; top: 16px; right: 16px;
  width: 32px; height: 32px; border: 1.5px solid var(--border);
  border-radius: 50%; background: var(--white); font-size: 18px;
  cursor: pointer; display: flex; align-items: center; justify-content: center;
  color: var(--ink-soft); transition: all .16s; line-height: 1;
}
.btv-detail__close:hover { background: var(--sand); color: var(--ink); }

.btv-detail__layout { display: grid; grid-template-columns: 1fr 280px; gap: 32px; align-items: start; }

.btv-detail__name { font-family: var(--font-display); font-size: 1.5rem; font-weight: 700; color: var(--ink); margin-bottom: 6px; }
.btv-detail__loc  { display: flex; align-items: center; gap: 10px; font-size: 13px; color: var(--ink-soft); margin-bottom: 14px; }
.btv-detail__blurb { font-size: .9rem; color: var(--ink-mid); line-height: 1.65; margin-bottom: 20px; max-width: 520px; }

.btv-detail__stats { display: grid; grid-template-columns: repeat(2,1fr); gap: 12px; margin-bottom: 20px; }
.btv-detail__stat  { background: var(--sand); border-radius: var(--radius-sm); padding: 12px 14px; }
.btv-detail__stat-label { font-size: 10px; text-transform: uppercase; letter-spacing: .08em; color: var(--ink-soft); margin-bottom: 4px; }
.btv-detail__stat-val   { font-size: 14px; font-weight: 600; color: var(--ink); }

.btv-detail__actions { display: flex; gap: 10px; flex-wrap: wrap; }
.btv-detail__link {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 10px 18px; border-radius: var(--radius-sm);
  font-size: 13px; font-weight: 600; text-decoration: none; transition: all .18s;
}
.btv-detail__link--primary { background: var(--teal); color: var(--white); }
.btv-detail__link--primary:hover { background: var(--teal-light); transform: translateY(-1px); }

/* ===== MONTH CHART ===== */
.month-chart { background: var(--sand); border-radius: var(--radius-sm); padding: 16px; }
.month-chart__title { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; color: var(--ink-soft); margin-bottom: 16px; }
.month-chart__bars { display: flex; gap: 4px; align-items: flex-end; height: 80px; }
.month-chart__bar-wrap { flex: 1; display: flex; flex-direction: column; align-items: center; gap: 6px; height: 100%; justify-content: flex-end; }
.month-chart__bar  { width: 100%; border-radius: 3px 3px 0 0; min-height: 4px; transition: height .4s ease; }
.month-chart__bar-name { font-size: 9px; color: var(--ink-soft); font-weight: 600; text-transform: uppercase; }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .btv-grid { grid-template-columns: repeat(2,1fr); }
  .btv-detail__layout { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .month-grid { grid-template-columns: repeat(6,1fr); }
  .btv-grid   { grid-template-columns: 1fr; }
  .btv-detail__stats { grid-template-columns: repeat(2,1fr); }
}
@media (max-width: 480px) {
  .month-grid { grid-template-columns: repeat(4,1fr); }
  .btv-filters { padding: 12px 14px; }
}