/* ============================================================
   班级宿舍分配系统 — 样式表
   ============================================================ */
:root {
  --bg: #eef2f7;
  --card: #ffffff;
  --primary: #4f46e5;
  --primary-2: #7c3aed;
  --primary-soft: #eef2ff;
  --text: #1e293b;
  --muted: #64748b;
  --border: #e2e8f0;
  --green: #16a34a;
  --orange: #ea580c;
  --red: #dc2626;
  --radius: 14px;
  --shadow: 0 2px 10px rgba(15, 23, 42, 0.06);
  --shadow-lg: 0 10px 30px rgba(15, 23, 42, 0.12);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { -webkit-text-size-adjust: 100%; }

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Segoe UI", system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.container { width: min(1180px, 94%); margin: 0 auto; }

.hidden { display: none !important; }
.muted { color: var(--muted); font-size: 0.9em; }
.hint { color: var(--muted); font-size: 0.82em; margin-top: 4px; }

/* ---------------- 顶部栏 ---------------- */
.topbar {
  background: linear-gradient(120deg, var(--primary), var(--primary-2));
  color: #fff;
  padding: 18px 0 16px;
  box-shadow: var(--shadow-lg);
  position: sticky;
  top: 0;
  z-index: 50;
}
.topbar-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: 12px; }
.brand-icon { font-size: 34px; }
.brand h1 { font-size: 1.35rem; font-weight: 700; letter-spacing: 1px; }
.brand .sub { font-size: 0.82rem; opacity: 0.85; }

.tabs { display: flex; gap: 8px; flex-wrap: wrap; }
.tab-btn {
  background: rgba(255, 255, 255, 0.14);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.25);
  padding: 9px 16px;
  border-radius: 999px;
  cursor: pointer;
  font-size: 0.92rem;
  transition: all 0.18s ease;
  font-family: inherit;
}
.tab-btn:hover { background: rgba(255, 255, 255, 0.25); }
.tab-btn.active { background: #fff; color: var(--primary); font-weight: 600; box-shadow: 0 4px 12px rgba(0,0,0,0.15); }
.tab-btn .badge {
  display: inline-block; min-width: 20px; padding: 0 6px;
  background: var(--red); color: #fff; border-radius: 999px;
  font-size: 0.75rem; line-height: 18px; margin-left: 4px;
}
.tab-btn.active .badge { background: var(--primary); }

/* ---------------- 页签面板 ---------------- */
main { flex: 1; padding: 26px 0 40px; }
.tab-panel { display: none; animation: fadeIn 0.25s ease; }
.tab-panel.active { display: block; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

/* ---------------- 卡片与布局 ---------------- */
.card {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 22px 24px;
  margin-bottom: 20px;
  border: 1px solid rgba(226, 232, 240, 0.6);
}
.card h2 { font-size: 1.12rem; margin-bottom: 10px; }
.card h3.sub-title { font-size: 0.95rem; color: var(--primary); margin: 18px 0 10px; padding-top: 14px; border-top: 1px dashed var(--border); }

.grid-2 { display: grid; grid-template-columns: 1.15fr 1fr; gap: 20px; align-items: start; }
.assign-layout { grid-template-columns: 1fr 1.35fr; }

/* ---------------- 表单 ---------------- */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px 18px; }
.field { display: flex; flex-direction: column; }
.field.full { grid-column: 1 / -1; }
.field-label { font-size: 0.85rem; font-weight: 600; margin-bottom: 6px; color: #334155; }
.field-label .req { color: var(--red); font-style: normal; margin-left: 2px; }
.field .range-val { color: var(--primary); font-weight: 700; }

input[type="text"], input[type="password"], input[type="number"], input[type="time"], input[type="search"], select {
  width: 100%;
  padding: 9px 12px;
  border: 1.5px solid var(--border);
  border-radius: 10px;
  font-size: 0.95rem;
  background: #fbfcfe;
  color: var(--text);
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
  font-family: inherit;
}
input:focus, select:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.12); background: #fff; }

.radio-row { display: flex; gap: 10px; flex-wrap: wrap; }
.radio {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 14px; border: 1.5px solid var(--border); border-radius: 999px;
  cursor: pointer; font-size: 0.88rem; background: #fbfcfe;
  transition: all 0.15s;
  user-select: none;
}
.radio input { accent-color: var(--primary); }
.radio:has(input:checked) { border-color: var(--primary); background: var(--primary-soft); color: var(--primary); font-weight: 600; }

input[type="range"] { width: 100%; accent-color: var(--primary); }
.range-label { font-size: 0.9rem; color: var(--orange); letter-spacing: 2px; }

.check { display: flex; align-items: center; gap: 8px; font-size: 0.9rem; cursor: pointer; padding: 6px 0; }
.check input { accent-color: var(--primary); width: 16px; height: 16px; }

/* ---------------- 按钮 ---------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 10px 20px;
  border-radius: 10px;
  border: 1.5px solid var(--border);
  background: #fff;
  color: var(--text);
  font-size: 0.95rem;
  cursor: pointer;
  transition: all 0.15s ease;
  font-family: inherit;
  font-weight: 500;
}
.btn:hover { border-color: var(--primary); color: var(--primary); transform: translateY(-1px); }
.btn:disabled { opacity: 0.55; cursor: not-allowed; transform: none; }
.btn.primary {
  background: linear-gradient(120deg, var(--primary), var(--primary-2));
  color: #fff; border: none; box-shadow: 0 4px 14px rgba(79, 70, 229, 0.35);
}
.btn.primary:hover { color: #fff; filter: brightness(1.08); }
.btn.ghost { background: transparent; border-color: transparent; color: var(--muted); }
.btn.danger { color: var(--red); }
.btn.danger:hover { border-color: var(--red); }
.btn.small { padding: 6px 12px; font-size: 0.82rem; border-radius: 8px; }
.btn-row { display: flex; gap: 10px; margin-top: 16px; flex-wrap: wrap; }

/* ---------------- 说明列表 / 统计 ---------------- */
.info-list { padding-left: 18px; font-size: 0.92rem; }
.info-list li { margin: 8px 0; color: #475569; }
.info-list b { color: var(--primary); }

.stat-grid { display: flex; gap: 14px; margin: 10px 0 6px; }
.stat-item {
  flex: 1; text-align: center; background: var(--primary-soft);
  border-radius: 12px; padding: 12px 8px;
}
.stat-num { display: block; font-size: 1.6rem; font-weight: 800; color: var(--primary); }
.stat-label { font-size: 0.8rem; color: var(--muted); }

/* ---------------- 名单表格 ---------------- */
.list-toolbar { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.list-toolbar h2 { margin-bottom: 0; }
.toolbar-btns { display: flex; gap: 8px; flex-wrap: wrap; }
.search { margin: 14px 0; }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 0.88rem; min-width: 760px; }
th, td { padding: 10px 10px; text-align: left; border-bottom: 1px solid var(--border); white-space: nowrap; }
th { background: #f8fafc; color: var(--muted); font-weight: 600; font-size: 0.8rem; }
tbody tr:hover { background: #f8faff; }
.tag {
  display: inline-block; padding: 2px 9px; border-radius: 999px;
  font-size: 0.76rem; background: #f1f5f9; color: #475569; margin-right: 4px;
}
.tag.yes { background: #fee2e2; color: var(--red); }
.tag.gender-m { background: #dbeafe; color: #1d4ed8; }
.tag.gender-f { background: #fce7f3; color: #db2777; }
.row-ops button { margin-right: 6px; }

/* ---------------- 分配结果 ---------------- */
.summary {
  display: flex; gap: 12px; flex-wrap: wrap; margin: 12px 0 16px;
}
.summary .pill {
  background: var(--primary-soft); color: var(--primary);
  padding: 7px 14px; border-radius: 999px; font-size: 0.86rem; font-weight: 600;
}
.summary .pill.alt { background: #f0fdf4; color: var(--green); }

.dorm-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(270px, 1fr)); gap: 16px; }
.dorm-card {
  border: 1.5px solid var(--border);
  border-radius: 14px;
  padding: 14px 16px;
  background: #fdfdff;
  transition: box-shadow 0.15s;
}
.dorm-card:hover { box-shadow: var(--shadow-lg); }
.dorm-head { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin-bottom: 10px; }
.dorm-name {
  font-weight: 700; font-size: 1rem; color: var(--primary);
  border: 1px dashed transparent; border-radius: 6px; padding: 2px 6px;
  width: 110px; background: transparent;
}
.dorm-name:hover, .dorm-name:focus { border-color: var(--primary); background: #fff; outline: none; }
.dorm-badges { display: flex; gap: 6px; align-items: center; }
.score-badge { font-size: 0.78rem; font-weight: 700; padding: 3px 9px; border-radius: 999px; color: #fff; }
.score-badge.good { background: var(--green); }
.score-badge.mid { background: var(--orange); }
.score-badge.bad { background: var(--red); }
.gender-badge { font-size: 0.76rem; padding: 3px 9px; border-radius: 999px; background: #e0e7ff; color: #4338ca; font-weight: 600; }

.member-row {
  display: flex; align-items: center; justify-content: space-between; gap: 8px;
  padding: 7px 8px; border-radius: 8px;
}
.member-row:nth-child(odd) { background: #f8fafc; }
.member-name { font-weight: 600; font-size: 0.9rem; }
.member-chips { display: flex; gap: 4px; flex-wrap: wrap; justify-content: flex-end; }
.chip {
  font-size: 0.7rem; padding: 1px 7px; border-radius: 999px;
  background: #eef2ff; color: #4f46e5; white-space: nowrap;
}
.chip.warn { background: #fee2e2; color: var(--red); }
.chip.ok { background: #dcfce7; color: #15803d; }

.error-box {
  margin-top: 14px; padding: 12px 14px; border-radius: 10px;
  background: #fef2f2; border: 1px solid #fecaca; color: #b91c1c; font-size: 0.88rem;
}
.error-box .btn-row { margin-top: 10px; }

/* ---------------- 弹窗 ---------------- */
.modal-mask {
  position: fixed; inset: 0; background: rgba(15, 23, 42, 0.5);
  display: flex; align-items: center; justify-content: center;
  z-index: 100; padding: 20px;
  backdrop-filter: blur(3px);
}
.modal-card {
  background: #fff; border-radius: 16px; padding: 24px;
  width: min(640px, 100%); max-height: 88vh; overflow-y: auto;
  box-shadow: var(--shadow-lg);
  animation: popIn 0.2s ease;
}
.modal-card h2 { margin-bottom: 14px; }
@keyframes popIn { from { transform: scale(0.96); opacity: 0; } to { transform: none; opacity: 1; } }

/* ---------------- Toast ---------------- */
.toast-wrap {
  position: fixed; right: 18px; bottom: 18px; z-index: 200;
  display: flex; flex-direction: column; gap: 8px; align-items: flex-end;
}
.toast {
  padding: 11px 18px; border-radius: 10px; color: #fff;
  background: #334155; box-shadow: var(--shadow-lg);
  font-size: 0.9rem; opacity: 0; transform: translateY(8px);
  transition: all 0.25s ease; max-width: 320px;
}
.toast.show { opacity: 1; transform: none; }
.toast.success { background: var(--green); }
.toast.warn { background: var(--orange); }
.toast.error { background: var(--red); }

/* ---------------- 管理员登录锁 ---------------- */
.login-mask {
  position: fixed; inset: 0; z-index: 90;
  background: linear-gradient(120deg, var(--primary), var(--primary-2));
  display: flex; align-items: center; justify-content: center;
  padding: 20px;
}
.login-card { width: min(400px, 100%); margin: 0; text-align: left; }
.login-card h2 { margin-bottom: 8px; }
.login-card input { margin: 12px 0 4px; }
.login-card .btn-row { margin-top: 14px; }
#login-error { margin-top: 8px; font-size: 0.85rem; min-height: 1.2em; }

.topbar .admin-link {
  background: rgba(255, 255, 255, 0.16);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.35);
  text-decoration: none;
  white-space: nowrap;
}
.topbar .admin-link:hover { background: #fff; color: var(--primary); }

/* ---------------- 页脚 ---------------- */
.footer { border-top: 1px solid var(--border); padding: 16px 0; color: var(--muted); font-size: 0.8rem; text-align: center; }

/* ---------------- 响应式 ---------------- */
@media (max-width: 900px) {
  .grid-2, .assign-layout { grid-template-columns: 1fr; }
  .topbar-inner { justify-content: center; text-align: center; }
  .brand { flex-direction: column; }
  .form-grid { grid-template-columns: 1fr; }
}

/* ---------------- 打印 ---------------- */
@media print {
  body { background: #fff; }
  body * { visibility: hidden; }
  #results-area, #results-area * { visibility: visible; }
  #results-area {
    position: absolute; left: 0; top: 0; width: 100%;
    margin: 0; padding: 20px;
  }
  .dorm-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
  .dorm-card { break-inside: avoid; box-shadow: none; }
  .no-print { display: none !important; }
}