/* ═══════════════════════════════════════════════════════════════
   答辩考核系统 - 全局样式
   国家消防救援局 室内烟火特性训练师资培训班
   ═══════════════════════════════════════════════════════════════ */

:root {
  --fire-red: #C41E3A;
  --fire-red-light: #E83045;
  --fire-orange: #E85D04;
  --navy-dark: #1B2A47;
  --navy: #1E3A5F;
  --navy-light: #2B5A8C;
  --gold: #D4A843;
  --bg: #F5F5F7;
  --bg-card: #FFFFFF;
  --text: #1A1A2E;
  --text-secondary: #6B7280;
  --border: #E5E7EB;
  --success: #10B981;
  --warning: #F59E0B;
  --danger: #EF4444;
  --shadow: 0 2px 8px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.12);
  --radius: 10px;
  --radius-sm: 6px;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Microsoft YaHei", "PingFang SC", "Helvetica Neue", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

/* ── 顶部导航栏 ──────────────────────────────────── */
.top-bar {
  background: linear-gradient(135deg, var(--navy-dark), var(--navy));
  color: #fff;
  padding: 12px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: 0 2px 12px rgba(0,0,0,0.15);
  position: sticky;
  top: 0;
  z-index: 100;
}
.top-bar .logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 1px;
}
.top-bar .logo .emblem {
  width: 36px; height: 36px;
  background: var(--fire-red);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 20px;
}
.top-bar .info { font-size: 13px; opacity: 0.9; display: flex; gap: 20px; }
.top-bar .info .badge {
  background: rgba(255,255,255,0.15);
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 13px;
}

/* ── 卡片 ────────────────────────────────────────── */
.card {
  background: var(--bg-card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 24px;
  margin-bottom: 20px;
  border: 1px solid var(--border);
}
.card-header {
  font-size: 17px;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--fire-red);
  display: flex; align-items: center; gap: 8px;
}
.card-header::before {
  content: ''; width: 4px; height: 20px;
  background: var(--fire-red); border-radius: 2px;
}

/* ── 按钮 ────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 10px 20px; border: none; border-radius: var(--radius-sm);
  font-size: 14px; font-weight: 600;
  cursor: pointer; transition: all 0.2s;
  text-decoration: none; white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); box-shadow: var(--shadow); }
.btn:active { transform: translateY(0); }
.btn-primary { background: var(--navy); color: #fff; }
.btn-primary:hover { background: var(--navy-light); }
.btn-danger { background: var(--fire-red); color: #fff; }
.btn-danger:hover { background: var(--fire-red-light); }
.btn-success { background: var(--success); color: #fff; }
.btn-warning { background: var(--warning); color: #fff; }
.btn-outline { background: #fff; color: var(--navy); border: 2px solid var(--navy); }
.btn-outline:hover { background: var(--navy); color: #fff; }
.btn-lg { padding: 14px 32px; font-size: 18px; }
.btn-sm { padding: 6px 14px; font-size: 13px; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

/* ── 输入框 ──────────────────────────────────────── */
.input, .select {
  padding: 10px 14px; border: 2px solid var(--border);
  border-radius: var(--radius-sm); font-size: 14px;
  transition: border-color 0.2s; width: 100%;
  font-family: inherit;
}
.input:focus, .select:focus { outline: none; border-color: var(--navy); }
.input-group { display: flex; gap: 10px; margin-bottom: 12px; }
.input-group .input { flex: 1; }

/* ── 表格 ────────────────────────────────────────── */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
thead { background: var(--navy); color: #fff; }
th { padding: 12px 16px; text-align: left; font-weight: 600; }
td { padding: 10px 16px; border-bottom: 1px solid var(--border); }
tr:hover td { background: #F0F4FF; }
.badge-status {
  display: inline-block; padding: 3px 10px; border-radius: 12px;
  font-size: 12px; font-weight: 600;
}
.badge-am { background: #FEF3C7; color: #92400E; }
.badge-pm { background: #DBEAFE; color: #1E3A5F; }
.badge-idle { background: #E5E7EB; color: #6B7280; }
.badge-preparing { background: #FEF3C7; color: #92400E; }
.badge-teaching { background: #DBEAFE; color: #1E3A5F; }
.badge-defending { background: #D1FAE5; color: #065F46; }
.badge-completed { background: #E5E7EB; color: #6B7280; }

/* ── 标签页 ──────────────────────────────────────── */
.tabs { display: flex; gap: 0; border-bottom: 2px solid var(--border); margin-bottom: 24px; }
.tab-btn {
  padding: 12px 24px; border: none; background: none;
  font-size: 15px; font-weight: 600; color: var(--text-secondary);
  cursor: pointer; border-bottom: 3px solid transparent;
  margin-bottom: -2px; transition: all 0.2s;
}
.tab-btn:hover { color: var(--navy); }
.tab-btn.active { color: var(--fire-red); border-bottom-color: var(--fire-red); }
.tab-content { display: none; }
.tab-content.active { display: block; }

/* ── 网格布局 ────────────────────────────────────── */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }

/* ── 分池拖拽 ────────────────────────────────────── */
.pool-column {
  min-height: 300px;
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 12px;
  transition: border-color 0.2s, background 0.2s;
}
.pool-column.drag-over { border-color: var(--navy); background: #F0F4FF; }
.pool-column h3 {
  text-align: center; padding: 8px;
  background: var(--navy); color: #fff; border-radius: var(--radius-sm);
  margin-bottom: 12px; font-size: 16px;
}
.pool-item {
  padding: 10px 14px; margin-bottom: 8px;
  background: #fff; border: 1px solid var(--border);
  border-radius: var(--radius-sm); cursor: grab;
  transition: all 0.2s; font-size: 14px;
  display: flex; justify-content: space-between; align-items: center;
}
.pool-item:hover { border-color: var(--navy); box-shadow: var(--shadow); }
.pool-item:active { cursor: grabbing; }
.pool-item .pdf-label { font-size: 12px; color: var(--text-secondary); }

/* ── Toast 消息 ──────────────────────────────────── */
.toast {
  position: fixed; top: 80px; right: 24px;
  padding: 14px 24px; border-radius: var(--radius-sm);
  color: #fff; font-weight: 600; z-index: 9999;
  animation: slideIn 0.3s ease; box-shadow: var(--shadow-lg);
}
.toast-success { background: var(--success); }
.toast-error { background: var(--danger); }
.toast-warning { background: var(--warning); }
@keyframes slideIn {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* ── 模态框 ──────────────────────────────────────── */
.modal-overlay {
  position: fixed; top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.5); z-index: 1000;
  display: flex; align-items: center; justify-content: center;
}
.modal {
  background: #fff; border-radius: var(--radius);
  padding: 32px; max-width: 500px; width: 90%;
  box-shadow: var(--shadow-lg);
}
.modal h3 { margin-bottom: 16px; color: var(--navy); }
.modal .actions { display: flex; gap: 12px; justify-content: flex-end; margin-top: 20px; }

/* ── 文件上传区 ──────────────────────────────────── */
.upload-zone {
  border: 2px dashed var(--border); border-radius: var(--radius);
  padding: 40px; text-align: center;
  cursor: pointer; transition: all 0.2s;
  background: #FAFAFA;
}
.upload-zone:hover, .upload-zone.drag-over {
  border-color: var(--navy); background: #F0F4FF;
}
.upload-zone .icon { font-size: 48px; margin-bottom: 12px; }
.upload-zone .hint { color: var(--text-secondary); font-size: 13px; margin-top: 8px; }

/* ── 监控卡片 ────────────────────────────────────── */
.monitor-card {
  background: var(--bg-card); border-radius: var(--radius);
  border: 1px solid var(--border); overflow: hidden;
  transition: all 0.3s;
}
.monitor-card .room-header {
  padding: 14px 20px; color: #fff; font-weight: 700; font-size: 15px;
  display: flex; justify-content: space-between; align-items: center;
}
.monitor-card .room-header.am { background: linear-gradient(135deg, #1E3A5F, #2B5A8C); }
.monitor-card .room-header.pm { background: linear-gradient(135deg, #7C2D12, #9A3412); }
.monitor-card .room-body { padding: 16px 20px; }
.monitor-card .stat { display: flex; justify-content: space-between; margin-bottom: 8px; font-size: 14px; }
.monitor-card .stat .label { color: var(--text-secondary); }
.monitor-card .stat .value { font-weight: 700; }
.monitor-card .progress-bar {
  height: 6px; background: var(--border); border-radius: 3px;
  margin-top: 12px; overflow: hidden;
}
.monitor-card .progress-fill {
  height: 100%; background: var(--navy); border-radius: 3px;
  transition: width 0.5s ease;
}

/* ── 响应式 ──────────────────────────────────────── */
@media (max-width: 768px) {
  .grid-2, .grid-4 { grid-template-columns: 1fr; }
  .top-bar { flex-direction: column; gap: 8px; }
}