/* 主题变量定义 */

:root {
    /* 浅色主题（默认） */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --bg-hover: #e2e8f0;
    
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-tertiary: #94a3b8;
    
    --border: #e2e8f0;
    --border-light: #f1f5f9;
    
    --accent: #6366f1;
    --accent-light: rgba(99, 102, 241, 0.1);
    --accent-dark: #4f46e5;
    
    --success: #10b981;
    --success-light: rgba(16, 185, 129, 0.1);
    
    --warning: #f59e0b;
    --warning-light: rgba(245, 158, 11, 0.1);
    
    --danger: #ef4444;
    --danger-light: rgba(239, 68, 68, 0.1);
    
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

[data-theme="dark"] {
    /* 深色主题 */
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --bg-hover: #475569;
    
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-tertiary: #64748b;
    
    --border: #334155;
    --border-light: #1e293b;
    
    --accent: #818cf8;
    --accent-light: rgba(129, 140, 248, 0.15);
    --accent-dark: #6366f1;
    
    --success: #34d399;
    --success-light: rgba(52, 211, 153, 0.15);
    
    --warning: #fbbf24;
    --warning-light: rgba(251, 191, 36, 0.15);
    
    --danger: #f87171;
    --danger-light: rgba(248, 113, 113, 0.15);
    
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.3);
}

/* 深色主题下的特殊样式调整 */
[data-theme="dark"] .notification.success {
    background: rgba(16, 185, 129, 0.2);
    border-color: #10b981;
    color: #34d399;
}

[data-theme="dark"] .notification.error {
    background: rgba(239, 68, 68, 0.2);
    border-color: #ef4444;
    color: #f87171;
}

[data-theme="dark"] .notification.info {
    background: var(--accent-light);
    border-color: var(--accent);
    color: var(--accent);
}

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

[data-theme="dark"] input:focus,
[data-theme="dark"] textarea:focus,
[data-theme="dark"] select:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-light);
}

/* 过渡动画 */
body,
.sidebar,
.header,
.content,
.password-card,
.stat-card,
.modal,
.auth-card,
input,
textarea,
select,
button {
    transition: background-color 0.3s ease, 
                border-color 0.3s ease, 
                color 0.3s ease,
                box-shadow 0.3s ease;
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-tertiary);
}

[data-theme="dark"] ::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

[data-theme="dark"] ::-webkit-scrollbar-thumb {
    background: var(--bg-tertiary);
}

/* 选中文本样式 */
::selection {
    background: var(--accent);
    color: white;
}

/* 焦点可见性 */
:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

/* 禁用状态 */
button:disabled,
input:disabled,
select:disabled,
textarea:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* 加载动画 */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* 骨架屏 */
.skeleton {
    background: linear-gradient(90deg, var(--bg-secondary) 25%, var(--bg-tertiary) 50%, var(--bg-secondary) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: 4px;
}

@keyframes shimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}