/* 智能面试测评系统 - 人事办公风格 */
:root {
  --primary: #4A90D9;
  --primary-dark: #357ABD;
  --primary-light: #E8F0FE;
  --sidebar-bg: #2C3E50;
  --bg: #F5F7FA;
  --card-bg: #FFFFFF;
  --text: #2C3E50;
  --text-light: #7F8C8D;
  --border: #E1E8ED;
  --success: #27AE60;
  --warning: #F39C12;
  --danger: #E74C3C;
  --info: #3498DB;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif; background: var(--bg); color: var(--text); font-size: 14px; line-height: 1.6; }

/* ---- Layout ---- */
.layout { display: flex; min-height: 100vh; }
.sidebar { width: 220px; background: var(--sidebar-bg); color: #fff; padding: 0; flex-shrink: 0; }
.sidebar-header { padding: 20px; border-bottom: 1px solid rgba(255,255,255,0.1); }
.sidebar-header h2 { font-size: 16px; font-weight: 600; }
.sidebar-header span { font-size: 12px; color: rgba(255,255,255,0.5); }
.sidebar-nav { padding: 10px 0; }
.sidebar-nav a { display: flex; align-items: center; gap: 10px; padding: 12px 20px; color: rgba(255,255,255,0.7); text-decoration: none; font-size: 14px; transition: all 0.2s; }
.sidebar-nav a:hover, .sidebar-nav a.active { background: rgba(255,255,255,0.1); color: #fff; }
.sidebar-nav .icon { font-size: 18px; width: 24px; text-align: center; }
.main-content { flex: 1; overflow-y: auto; }
.topbar { background: #fff; padding: 12px 24px; border-bottom: 1px solid var(--border); display: flex; justify-content: space-between; align-items: center; }
.topbar .user-info { display: flex; align-items: center; gap: 10px; }
.topbar .user-info button { background: none; border: 1px solid var(--border); padding: 6px 14px; border-radius: 4px; cursor: pointer; color: var(--text); font-size: 13px; }
.topbar .user-info button:hover { background: var(--bg); }
.content { padding: 24px; }

/* ---- Cards ---- */
.card { background: var(--card-bg); border-radius: 8px; border: 1px solid var(--border); margin-bottom: 20px; }
.card-header { padding: 16px 20px; border-bottom: 1px solid var(--border); display: flex; justify-content: space-between; align-items: center; }
.card-header h3 { font-size: 15px; font-weight: 600; }
.card-body { padding: 20px; }

/* ---- Stats ---- */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; margin-bottom: 20px; }
.stat-card { background: var(--card-bg); border-radius: 8px; border: 1px solid var(--border); padding: 20px; }
.stat-card .stat-num { font-size: 32px; font-weight: 700; color: var(--primary); }
.stat-card .stat-label { font-size: 13px; color: var(--text-light); margin-top: 4px; }

/* ---- Buttons ---- */
.btn { display: inline-flex; align-items: center; gap: 6px; padding: 8px 18px; border: none; border-radius: 4px; font-size: 13px; font-weight: 500; cursor: pointer; transition: all 0.2s; text-decoration: none; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-success { background: var(--success); color: #fff; }
.btn-warning { background: var(--warning); color: #fff; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-outline { background: #fff; border: 1px solid var(--border); color: var(--text); }
.btn-outline:hover { background: var(--bg); }
.btn-sm { padding: 4px 12px; font-size: 12px; }
.btn-lg { padding: 12px 28px; font-size: 15px; }

/* ---- Forms ---- */
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 13px; font-weight: 500; margin-bottom: 6px; color: var(--text); }
.form-group input, .form-group select, .form-group textarea { width: 100%; padding: 10px 12px; border: 1px solid var(--border); border-radius: 4px; font-size: 14px; font-family: inherit; }
.form-group input:focus, .form-group select:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(74,144,217,0.1); }
.form-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; }

/* ---- Tables ---- */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
table th { background: var(--primary-light); padding: 10px 12px; text-align: left; font-weight: 600; color: var(--primary-dark); border-bottom: 2px solid var(--primary); }
table td { padding: 10px 12px; border-bottom: 1px solid var(--border); }
table tr:hover { background: #F8FAFD; }

/* ---- Badges ---- */
.badge { display: inline-block; padding: 2px 10px; border-radius: 12px; font-size: 11px; font-weight: 500; }
.badge-pending { background: #FFF3CD; color: #856404; }
.badge-tested { background: #D1ECF1; color: #0C5460; }
.badge-interviewed { background: #D4EDDA; color: #155724; }
.badge-completed { background: #C3E6CB; color: #155724; }
.badge-admin { background: var(--danger); color: #fff; }
.badge-staff { background: var(--primary-light); color: var(--primary-dark); }

/* ---- Modals ---- */
.modal-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.5); display: flex; align-items: center; justify-content: center; z-index: 1000; }
.modal { background: #fff; border-radius: 8px; width: 90%; max-width: 600px; max-height: 80vh; overflow-y: auto; box-shadow: 0 10px 40px rgba(0,0,0,0.2); }
.modal-header { padding: 16px 20px; border-bottom: 1px solid var(--border); display: flex; justify-content: space-between; align-items: center; }
.modal-body { padding: 20px; }
.modal-footer { padding: 12px 20px; border-top: 1px solid var(--border); display: flex; justify-content: flex-end; gap: 10px; }

/* ---- Login page ---- */
.login-page { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: linear-gradient(135deg, var(--sidebar-bg) 0%, var(--primary-dark) 100%); }
.login-card { background: #fff; border-radius: 12px; padding: 40px; width: 380px; box-shadow: 0 20px 60px rgba(0,0,0,0.3); }
.login-card h1 { font-size: 22px; text-align: center; margin-bottom: 8px; color: var(--text); }
.login-card .subtitle { font-size: 13px; text-align: center; color: var(--text-light); margin-bottom: 30px; }
.login-card .btn { width: 100%; justify-content: center; }
.login-card .alt-link { text-align: center; margin-top: 16px; font-size: 13px; color: var(--text-light); }
.login-card .alt-link a { color: var(--primary); text-decoration: none; cursor: pointer; }
.login-card .alt-link a:hover { text-decoration: underline; }

/* ---- Candidate assessment page ---- */
.assess-page { max-width: 800px; margin: 0 auto; padding: 20px; }
.assess-progress { display: flex; gap: 4px; margin-bottom: 30px; }
.assess-progress .step { flex: 1; text-align: center; padding: 10px; background: var(--border); border-radius: 6px; font-size: 12px; font-weight: 500; }
.assess-progress .step.active { background: var(--primary); color: #fff; }
.assess-progress .step.done { background: var(--success); color: #fff; }
.question-block { background: var(--card-bg); border: 1px solid var(--border); border-radius: 8px; padding: 20px; margin-bottom: 12px; }
.question-block .q-num { font-size: 12px; color: var(--text-light); margin-bottom: 4px; }
.question-block .q-text { font-size: 15px; font-weight: 500; margin-bottom: 12px; }
.options { display: flex; gap: 12px; }
.option-btn { flex: 1; padding: 10px; border: 2px solid var(--border); border-radius: 6px; cursor: pointer; text-align: center; font-size: 13px; transition: all 0.2s; background: #fff; }
.option-btn:hover { border-color: var(--primary); background: var(--primary-light); }
.option-btn.selected { border-color: var(--primary); background: var(--primary); color: #fff; }

/* ---- Report ---- */
.report-section { margin-bottom: 24px; }
.report-section h4 { font-size: 14px; font-weight: 600; margin-bottom: 10px; padding-bottom: 6px; border-bottom: 2px solid var(--primary-light); }
.score-bar { display: flex; align-items: center; gap: 10px; margin: 6px 0; }
.score-bar .bar-label { width: 140px; font-size: 12px; text-align: right; flex-shrink: 0; }
.score-bar .bar-track { flex: 1; height: 8px; background: var(--bg); border-radius: 4px; overflow: hidden; }
.score-bar .bar-fill { height: 100%; border-radius: 4px; transition: width 0.3s; }
.score-bar .bar-val { width: 30px; font-size: 12px; font-weight: 600; text-align: center; }
.bar-high { background: var(--success); }
.bar-mid { background: var(--warning); }
.bar-low { background: var(--danger); }

/* ---- Q&A ---- */
.qa-item { background: var(--primary-light); border-radius: 6px; padding: 12px 16px; margin-bottom: 10px; }
.qa-item .qa-q { font-weight: 600; font-size: 13px; margin-bottom: 4px; }
.qa-item .qa-src { font-size: 11px; color: var(--text-light); }

/* ---- Misc ---- */
.text-muted { color: var(--text-light); }
.text-success { color: var(--success); }
.text-warning { color: var(--warning); }
.text-danger { color: var(--danger); }
.text-center { text-align: center; }
.mt-2 { margin-top: 8px; }
.mt-4 { margin-top: 16px; }
.mb-4 { margin-bottom: 16px; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }
.gap-2 { gap: 8px; }
.loading { text-align: center; padding: 40px; color: var(--text-light); }
.empty { text-align: center; padding: 60px 20px; color: var(--text-light); }
.empty .empty-icon { font-size: 48px; margin-bottom: 12px; }
.header-actions { display: flex; gap: 10px; }

/* ---- Print ---- */
@media print {
  .sidebar, .topbar, .header-actions, .btn { display: none; }
  .main-content { margin: 0; }
  .card { border: 1px solid #ccc; break-inside: avoid; }
}