/* ============================================================
 * 教師通訊錄 — 樣式
 *   沿用 styles.css 的變數與 .card / .avatar 等既有樣式
 * ============================================================ */

/* ---------- 分頁鈕 ---------- */
.fac-modes {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.fac-mode {
  min-height: 38px;
  padding: 8px 16px;
  font: inherit;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink-2, #475569);
  background: var(--surface-2, #f1f5f9);
  border: 1px solid var(--line, #e2e8f0);
  border-radius: 999px;
  cursor: pointer;
  transition: background .15s, color .15s, border-color .15s;
}
.fac-mode:hover { background: #e2e8f0; }
.fac-mode.is-active {
  color: #fff;
  background: var(--brand, #1e3a8a);
  border-color: var(--brand, #1e3a8a);
}
.fac-mode:focus-visible { outline: 2px solid var(--brand, #1e3a8a); outline-offset: 2px; }

/* ---------- 群組標題 ---------- */
.fac-group {
  margin: 22px 0 10px;
  font-size: 15px;
  font-weight: 700;
  color: var(--ink-2, #475569);
  letter-spacing: .02em;
}
.fac-group::before {
  content: '';
  display: inline-block;
  width: 4px;
  height: 15px;
  margin-right: 8px;
  vertical-align: -2px;
  border-radius: 2px;
  background: var(--brand, #1e3a8a);
}

/* ---------- 卡片格線 ---------- */
.fac-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 12px;
}

.fac-card {
  padding: 14px 16px !important;
  margin: 0 !important;
}

.fac-top {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}
.fac-avatar { flex: 0 0 auto; }
.fac-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  min-width: 0;
}
.fac-name {
  font-size: 16px;
  font-weight: 700;
  color: var(--ink, #0f172a);
}
.fac-badge {
  padding: 1px 8px;
  font-size: 11px;
  font-weight: 600;
  line-height: 18px;
  border-radius: 999px;
  white-space: nowrap;
}
.fac-badge-full { color: #1e3a8a; background: #dbeafe; }
.fac-badge-adj  { color: #92400e; background: #fef3c7; }
.fac-sub {
  flex: 1 0 100%;
  font-size: 12.5px;
  color: var(--ink-3, #64748b);
  overflow-wrap: anywhere;
}

.fac-meta {
  margin-top: 8px;
  font-size: 12.5px;
  color: var(--ink-3, #64748b);
  overflow-wrap: anywhere;
}

.fac-contacts {
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px dashed var(--line, #e2e8f0);
  display: grid;
  gap: 5px;
}
.fac-line {
  display: flex;
  gap: 8px;
  font-size: 13.5px;
  line-height: 1.5;
  align-items: baseline;
}
.fac-k {
  flex: 0 0 34px;
  color: var(--ink-3, #64748b);
  font-size: 12px;
}
.fac-line a {
  color: var(--brand, #1e3a8a);
  text-decoration: none;
  overflow-wrap: anywhere;
}
.fac-line a:hover { text-decoration: underline; }
.fac-muted { color: var(--ink-3, #64748b); }

.fac-none {
  margin: 0;
  padding: 12px 0;
  color: var(--ink-3, #64748b);
  text-align: center;
}

/* ---------- 手機 ---------- */
@media (max-width: 640px) {
  .fac-grid { grid-template-columns: 1fr; gap: 10px; }
  /* 三個分頁鈕排成一列（2+1 看起來像破版） */
  .fac-modes { flex-wrap: nowrap; }
  .fac-mode {
    flex: 1 1 0;
    min-width: 0;
    padding: 8px 6px;
    font-size: 12.5px;
    white-space: nowrap;
  }
  .fac-k { flex-basis: 32px; }
}

/* ---------- 列印 ---------- */
@media print {
  .fac-modes, #fac-q, .site-tabs, .nav-toggle, .nav-menu, .toast { display: none !important; }
  .fac-grid { grid-template-columns: repeat(2, 1fr); }
  .fac-card { break-inside: avoid; }
  * { -webkit-print-color-adjust: exact !important; print-color-adjust: exact !important; }
}

/* ---------- 動效降級 ---------- */
@media (prefers-reduced-motion: reduce) {
  .fac-mode { transition: none; }
}