/* AE培训工具平台样式 v2 - 莫兰迪风格 */
* { margin: 0; padding: 0; box-sizing: border-box; }
:root {
  --bg-page: #f5f4f1;
  --bg-card: #ffffff;
  --bg-muted: #f0eee9;
  --bg-hover: #ebe9e3;
  --text-primary: #2c2c2a;
  --text-secondary: #6b6b66;
  --text-muted: #9a988f;
  --border: #e0ddd5;
  --border-light: #eceae3;
  --primary: #5b6b7c;
  --primary-light: #e8edf2;
  --primary-dark: #3d4a57;
  --success: #5a8068;
  --success-light: #e8f0ea;
  --warning: #b8915a;
  --warning-light: #f5ede0;
  --danger: #a86060;
  --danger-light: #f5e8e8;
  --info: #5b7a9c;
  --info-light: #e8eef4;
  --radius: 8px;
  --radius-lg: 12px;
  --shadow: 0 1px 3px rgba(0,0,0,0.04);
  --shadow-hover: 0 4px 12px rgba(0,0,0,0.08);
}
body { font-family: -apple-system, "Segoe UI", "Microsoft YaHei", sans-serif; background: var(--bg-page); color: var(--text-primary); line-height: 1.6; font-size: 14px; }

/* Navbar */
.navbar { background: var(--text-primary); padding: 0 32px; display: flex; justify-content: space-between; align-items: center; height: 52px; color: #fff; position: sticky; top: 0; z-index: 100; }
.nav-brand a { color: #fff; text-decoration: none; font-weight: 500; font-size: 15px; }
.nav-links { display: flex; gap: 4px; align-items: center; }
.nav-links a { color: #c8c6c0; padding: 6px 14px; text-decoration: none; border-radius: 6px; font-size: 13px; transition: all 0.15s; }
.nav-links a:hover { color: #fff; background: rgba(255,255,255,0.1); }

/* Layout */
.container { max-width: 1200px; margin: 24px auto; padding: 0 24px; }
.hero { margin-bottom: 24px; }
.hero h1 { font-size: 22px; font-weight: 500; color: var(--text-primary); }

/* Cards */
.card { background: var(--bg-card); border-radius: var(--radius-lg); padding: 24px; box-shadow: var(--shadow); margin-bottom: 20px; border: 1px solid var(--border-light); }
.card-title { font-size: 15px; font-weight: 500; color: var(--text-primary); margin-bottom: 16px; padding-bottom: 12px; border-bottom: 1px solid var(--border-light); display: flex; justify-content: space-between; align-items: center; }

/* Stat cards */
.stat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 12px; margin-bottom: 20px; }
.stat-card { background: var(--bg-card); border-radius: var(--radius); padding: 16px 20px; text-align: center; border: 1px solid var(--border-light); }
.stat-value { font-size: 24px; font-weight: 600; color: var(--text-primary); line-height: 1.3; }
.stat-label { font-size: 12px; color: var(--text-muted); margin-top: 4px; }

/* Tables - 关键修复：table-layout:fixed 确保对齐 */
.table-wrap { overflow-x: auto; margin: 0 -4px; padding: 0 4px; }
table { width: 100%; border-collapse: collapse; table-layout: auto; font-size: 13px; }
thead th { background: var(--bg-muted); color: var(--text-secondary); font-weight: 500; text-align: left; padding: 10px 12px; border-bottom: 2px solid var(--border); white-space: nowrap; font-size: 12px; text-transform: uppercase; letter-spacing: 0.3px; }
tbody td { padding: 10px 12px; border-bottom: 1px solid var(--border-light); color: var(--text-primary); vertical-align: middle; }
tbody tr:hover { background: var(--bg-muted); }
tbody tr:last-child td { border-bottom: none; }

/* Badges */
.badge { display: inline-block; padding: 2px 10px; border-radius: 4px; font-size: 12px; font-weight: 500; line-height: 1.8; }
.badge-mc { background: var(--info-light); color: var(--info); }
.badge-formula { background: var(--success-light); color: var(--success); }
.badge-short { background: var(--warning-light); color: var(--warning); }
.badge-1 { background: var(--success-light); color: var(--success); }
.badge-2 { background: var(--warning-light); color: var(--warning); }
.badge-3 { background: var(--danger-light); color: var(--danger); }

/* Buttons */
.btn { display: inline-block; padding: 7px 16px; background: var(--primary); color: #fff; text-decoration: none; border-radius: 6px; border: none; cursor: pointer; font-size: 13px; font-weight: 500; transition: all 0.15s; line-height: 1.4; }
.btn:hover { background: var(--primary-dark); }
.btn-primary { background: var(--primary); }
.btn-outline { background: transparent; color: var(--text-secondary); border: 1px solid var(--border); }
.btn-outline:hover { background: var(--bg-hover); color: var(--text-primary); border-color: var(--text-muted); }
.btn-danger { background: var(--danger); }
.btn-sm { padding: 4px 10px; font-size: 12px; }

/* Forms */
.form-group { margin-bottom: 16px; }
.form-group label { display: block; margin-bottom: 6px; font-weight: 500; font-size: 13px; color: var(--text-secondary); }
.form-group input, .form-group textarea, .form-group select { width: 100%; padding: 8px 12px; border: 1px solid var(--border); border-radius: 6px; font-size: 13px; background: var(--bg-card); color: var(--text-primary); }
.form-group input:focus, .form-group textarea:focus, .form-group select:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-light); }
.form-group textarea { resize: vertical; min-height: 80px; line-height: 1.6; }
.form-group small { display: block; margin-top: 4px; color: var(--text-muted); font-size: 12px; }
.form-row { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 16px; margin-bottom: 16px; }

/* Alerts */
.alert { padding: 12px 16px; border-radius: 6px; margin-bottom: 16px; font-size: 13px; }
.alert-success { background: var(--success-light); color: var(--success); border: 1px solid var(--success); }
.alert-danger { background: var(--danger-light); color: var(--danger); border: 1px solid var(--danger); }
.alert-warning { background: var(--warning-light); color: var(--warning); border: 1px solid var(--warning); }
.alert-info { background: var(--info-light); color: var(--info); border: 1px solid var(--info); }

/* Progress bars */
.progress-bar { flex: 1; background: var(--bg-muted); border-radius: 4px; height: 22px; position: relative; overflow: hidden; min-width: 80px; }
.progress-fill { height: 100%; border-radius: 4px; transition: width 0.3s; }
.progress-label { position: absolute; right: 8px; top: 50%; transform: translateY(-50%); font-size: 11px; font-weight: 500; color: var(--text-primary); }

/* Trend indicators */
.trend-up { color: var(--success); font-weight: 600; }
.trend-down { color: var(--danger); font-weight: 600; }
.trend-flat { color: var(--text-muted); font-weight: 600; }

/* Two-column layout */
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-bottom: 20px; }
@media (max-width: 768px) { .two-col { grid-template-columns: 1fr; } }

/* Footer */
.footer { text-align: center; padding: 24px; color: var(--text-muted); font-size: 12px; }

/* Misc */
.text-muted { color: var(--text-muted); }
.text-center { text-align: center; }
.mono { font-family: "SF Mono", "Cascadia Code", "Consolas", monospace; font-size: 12px; }
.nowrap { white-space: nowrap; }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }