/**
 * base.css - 变量定义、基础样式、重置样式
 */

/* ===================== CSS变量定义 ===================== */
:root {
    --primary-color: #667eea;
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --danger-color: #f5576c;
    --danger-gradient: linear-gradient(135deg, #f5576c 0%, #f093fb 100%);
    --success-color: #4facfe;
    --success-gradient: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --warning-color: #fa709a;
    --warning-gradient: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
    --bg-color: #f5f7fa;
    --card-bg: #ffffff;
    --card-shadow: 0 10px 40px rgba(0,0,0,0.1);
    --text-primary: #2d3748;
    --text-secondary: #718096;
    --border-color: #e2e8f0;
    --input-bg: #ffffff;
    --hover-bg: #f1f5f9;
}

/* ===================== 深色主题变量 ===================== */
[data-theme="dark"] {
    --bg-color: #1a1a2e;
    --card-bg: #16213e;
    --card-shadow: 0 10px 40px rgba(0,0,0,0.3);
    --text-primary: #e2e8f0;
    --text-secondary: #a0aec0;
    --border-color: #2d3748;
    --input-bg: #1e3a5f;
    --hover-bg: #1e3a5f;
}

[data-theme="dark"] .stat-card,
[data-theme="dark"] .main-content,
[data-theme="dark"] .timer-card {
    background: var(--card-bg);
}

[data-theme="dark"] .tabs {
    background: #1e3a5f;
}

[data-theme="dark"] .tab-btn.active {
    background: var(--card-bg);
}

[data-theme="dark"] .history-item,
[data-theme="dark"] .daily-item {
    background: var(--hover-bg);
}

[data-theme="dark"] .settings-panel {
    background: var(--hover-bg);
}

[data-theme="dark"] input,
[data-theme="dark"] select {
    background: var(--input-bg);
    color: var(--text-primary);
    border-color: var(--border-color);
}

[data-theme="dark"] .employee-tag {
    background: rgba(102, 126, 234, 0.2);
    border-color: rgba(102, 126, 234, 0.4);
}

[data-theme="dark"] .no-employee-tip {
    background: var(--hover-bg);
    border-color: var(--border-color);
}

/* ===================== 基础重置 ===================== */
* { box-sizing: border-box; }

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
    background: var(--bg-color);
    min-height: 100vh;
    margin: 0;
    padding: 12px;
}

.container {
    width: 100%;
    max-width: 1100px;
    margin: 0 auto;
}

/* ===================== 动画定义 ===================== */
@keyframes pulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(245, 87, 108, 0.4); }
    50% { box-shadow: 0 0 0 10px rgba(245, 87, 108, 0); }
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes slideIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

/* ===================== 提示样式 ===================== */
.empty-tip {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-secondary);
    font-size: 14px;
}

.empty-tip .empty-icon {
    font-size: 48px;
    margin-bottom: 16px;
    opacity: 0.5;
}

.no-employee-tip {
    text-align: center;
    padding: 60px;
    color: var(--text-secondary);
    background: #f8fafc;
    border-radius: 16px;
    border: 2px dashed var(--border-color);
    transition: all 0.3s ease;
}

.no-employee-tip:hover {
    border-color: var(--primary-color);
    background: rgba(102, 126, 234, 0.05);
    color: var(--primary-color);
    transform: translateY(-2px);
}

/* ===================== Toast提示 ===================== */
.toast {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 16px 24px;
    background: var(--text-primary);
    color: white;
    border-radius: 12px;
    font-size: 14px;
    z-index: 1000;
    animation: slideIn 0.3s ease;
    box-shadow: 0 10px 40px rgba(0,0,0,0.2);
}

/* ===================== 响应式布局 ===================== */
@media (max-width: 900px) {
    .stats-overview { grid-template-columns: repeat(2, 1fr); }
    .header { flex-direction: column; text-align: center; }
    .header-left { text-align: center; }
    .header .current-time { text-align: center; }
}

@media (max-width: 768px) {
    .container { padding: 8px; }
    .header { padding: 12px 16px; border-radius: 12px; }
    .header h1 { font-size: 18px; }
    .main-content { padding: 12px; border-radius: 12px; }
    .stats-overview { grid-template-columns: repeat(2, 1fr); gap: 8px; }
    .stat-card { padding: 10px 12px; }
    .employee-cards { grid-template-columns: 1fr; }
    .toolbar { flex-direction: column; align-items: stretch; }
    .toolbar-right { margin-left: 0; justify-content: flex-end; }
    .tabs { flex-wrap: nowrap; }
    .ranking-stats { gap: 12px; flex-wrap: wrap; }
}

/* ===================== 打印样式 ===================== */
@media print {
    body {
        background: white !important;
        padding: 0 !important;
    }
    
    .header, .tabs, .employee-cards, .employee-management,
    .footer-actions, .btn, .modal-overlay, .toast,
    .shortcuts-help, .fullscreen-exit-btn {
        display: none !important;
    }
    
    .main-content {
        box-shadow: none !important;
        padding: 0 !important;
    }
    
    .tab-content {
        display: block !important;
    }
    
    .print-content {
        display: block !important;
    }
}

.print-content {
    display: none;
}