/**
 * 教程系统样式
 * ===========================================
 * 交互式教程的完整样式定义，包括高亮、气泡、动画等
 */

/* ===========================================
   CSS变量定义
   =========================================== */
:root {
    --tutorial-primary-color: #4a90e2;
    --tutorial-success-color: #7ed321;
    --tutorial-warning-color: #f5a623;
    --tutorial-danger-color: #d0021b;
    --tutorial-overlay-color: rgba(0, 0, 0, 0.7);
    --tutorial-border-radius: 12px;
    --tutorial-shadow: 0 8px 32px rgba(0, 0, 0, 0.1), 0 4px 16px rgba(0, 0, 0, 0.06);
    --tutorial-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --tutorial-z-index-overlay: 20000;
    --tutorial-z-index-highlight: 21000;
    --tutorial-z-index-bubble: 25000;
}

/* ===========================================
   欢迎对话框样式
   =========================================== */
.tutorial-welcome-dialog {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 30000;
    opacity: 0;
    animation: fadeIn 0.3s ease-out forwards;
}

.tutorial-welcome-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--tutorial-overlay-color);
    /* backdrop-filter: blur(4px); 移除模糊效果以避免内容模糊 */
}

.tutorial-welcome-content {
    position: relative;
    width: 90%;
    max-width: 520px;
    background: var(--color-bg-primary, #ffffff);
    border-radius: var(--tutorial-border-radius);
    box-shadow: var(--tutorial-shadow);
    overflow: hidden;
    transform: scale(0.8);
    animation: scaleIn 0.3s ease-out 0.1s forwards;
    z-index: 1; /* 确保内容在遮罩层之上 */
}

.tutorial-welcome-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 24px 24px 0;
}

.tutorial-welcome-header h2 {
    margin: 0;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-text-primary, #333);
}

.tutorial-welcome-close {
    background: none;
    border: none;
    font-size: 24px;
    color: var(--color-text-secondary, #666);
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
    transition: var(--tutorial-transition);
}

.tutorial-welcome-close:hover {
    background: var(--color-bg-secondary, #f5f5f5);
    color: var(--color-text-primary, #333);
}

.tutorial-welcome-body {
    padding: 16px 24px 24px;
}

.tutorial-welcome-body p {
    margin: 0 0 20px 0;
    color: var(--color-text-secondary, #666);
    line-height: 1.5;
}

.tutorial-options {
    margin-bottom: 24px;
}

.tutorial-option {
    margin-bottom: 16px;
    display: flex;
    align-items: center; /* 改为center，让单选按钮垂直居中 */
}

.tutorial-option:last-child {
    margin-bottom: 0;
}

.tutorial-option input[type="radio"] {
    margin-right: 12px;
    /* 移除margin-top，不再需要手动调整 */
    flex-shrink: 0;
}

.tutorial-option label {
    display: block; /* 改为block，让内容垂直排列 */
    cursor: pointer;
    padding: 12px;
    border-radius: 8px;
    transition: var(--tutorial-transition);
    border: 2px solid transparent;
    flex: 1; /* 占满剩余空间 */
}

.tutorial-option label:hover {
    background: var(--color-bg-secondary, #f8f9fa);
}

.tutorial-option input[type="radio"]:checked + label {
    background: rgba(74, 144, 226, 0.1);
    border-color: var(--tutorial-primary-color);
}

.tutorial-option label strong {
    display: block;
    margin-bottom: 4px;
    color: var(--color-text-primary, #333);
}

.tutorial-option label span {
    display: block; /* 确保描述文字在新行 */
    font-size: 0.9rem;
    color: var(--color-text-secondary, #666);
}

.tutorial-welcome-actions {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
}

/* ===========================================
   按钮样式
   =========================================== */
.tutorial-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 20px;
    border: none;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--tutorial-transition);
    text-decoration: none;
    min-width: 80px;
    height: 40px;
    box-sizing: border-box;
}

.tutorial-btn:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.3);
}

.tutorial-btn-primary {
    background: var(--tutorial-primary-color);
    color: white;
}

.tutorial-btn-primary:hover {
    background: #357abd;
    transform: translateY(-1px);
}

.tutorial-btn-primary:active {
    transform: translateY(0);
}

.tutorial-btn-primary:disabled {
    background: #ccc;
    cursor: not-allowed;
    transform: none;
}

.tutorial-btn-secondary {
    background: var(--color-bg-secondary, #f8f9fa);
    color: var(--color-text-primary, #333);
    border: 1px solid var(--color-border-light, #dee2e6);
}

.tutorial-btn-secondary:hover {
    background: var(--color-bg-light, #e9ecef);
}

/* ===========================================
   高亮遮罩层样式
   =========================================== */
.tutorial-highlight-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: var(--tutorial-overlay-color);
    z-index: var(--tutorial-z-index-overlay);
    pointer-events: none;
}

.tutorial-highlight-area {
    position: fixed;
    pointer-events: none;
    z-index: var(--tutorial-z-index-highlight);
}

/* ===========================================
   引导气泡样式
   =========================================== */
.tutorial-guide-bubble {
    position: fixed;
    z-index: var(--tutorial-z-index-bubble);
    font-family: var(--app-font-family, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif);
}

.tutorial-bubble-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 16px 0;
    border-bottom: 1px solid var(--color-border-light, #eee);
    margin-bottom: 16px;
}

.tutorial-progress {
    font-size: 0.8rem;
    color: var(--color-text-secondary, #666);
    font-weight: 500;
}

.tutorial-close-btn {
    background: none;
    border: none;
    color: var(--color-text-secondary, #666);
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
    transition: var(--tutorial-transition);
}

.tutorial-close-btn:hover {
    background: var(--color-bg-secondary, #f5f5f5);
    color: var(--color-text-primary, #333);
}

.tutorial-bubble-content {
    padding: 0 16px 16px;
}

.tutorial-title {
    margin: 0 0 8px 0;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-text-primary, #333);
    line-height: 1.3;
}

.tutorial-description {
    margin: 0 0 12px 0;
    font-size: 0.9rem;
    color: var(--color-text-secondary, #666);
    line-height: 1.4;
}

.tutorial-hints {
    margin-top: 12px;
}

.tutorial-hint-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 6px;
    font-size: 0.8rem;
    color: var(--color-text-muted, #888);
    line-height: 1.3;
}

.tutorial-hint-item:last-child {
    margin-bottom: 0;
}

.tutorial-bubble-actions {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 8px;
    padding: 16px;
    background: var(--color-bg-tertiary, #f8f9fa);
    border-top: 1px solid var(--color-border-light, #eee);
}

.tutorial-action-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 6px 12px;
    border: 1px solid var(--color-border-light, #dee2e6);
    border-radius: 6px;
    background: var(--color-bg-primary, #ffffff);
    color: var(--color-text-secondary, #666);
    font-size: 0.8rem;
    cursor: pointer;
    transition: var(--tutorial-transition);
    text-decoration: none;
    min-width: 60px;
    height: 32px;
}

.tutorial-action-btn:hover {
    background: var(--color-bg-light, #f8f9fa);
    color: var(--color-text-primary, #333);
    border-color: var(--color-border-medium, #adb5bd);
}

.tutorial-action-btn:disabled {
    background: var(--color-bg-secondary, #f5f5f5);
    color: var(--color-text-disabled, #ccc);
    cursor: not-allowed;
    border-color: var(--color-border-light, #dee2e6);
}

.tutorial-skip-btn {
    color: var(--color-text-muted, #888);
}

.tutorial-skip-btn:hover {
    color: var(--tutorial-danger-color);
    border-color: var(--tutorial-danger-color);
}

/* ===========================================
   完成祝贺对话框样式
   =========================================== */
.tutorial-completion-dialog {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 30000;
    opacity: 0;
    animation: fadeIn 0.3s ease-out forwards;
}

.tutorial-completion-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--tutorial-overlay-color);
    backdrop-filter: blur(4px);
}

.tutorial-completion-content {
    position: relative;
    z-index: 1;
    width: 90%;
    max-width: 480px;
    background: var(--color-bg-primary, #ffffff);
    border-radius: var(--tutorial-border-radius);
    box-shadow: var(--tutorial-shadow);
    text-align: center;
    transform: scale(0.8);
    animation: scaleIn 0.3s ease-out 0.1s forwards;
}

.tutorial-completion-header {
    padding: 32px 24px 16px;
}

.tutorial-completion-icon {
    font-size: 4rem;
    margin-bottom: 16px;
    animation: bounceIn 0.6s ease-out 0.3s backwards;
}

.tutorial-completion-header h2 {
    margin: 0;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-text-primary, #333);
}

.tutorial-completion-body {
    padding: 0 24px 24px;
}

.tutorial-completion-body p {
    margin: 0 0 20px 0;
    color: var(--color-text-secondary, #666);
    line-height: 1.5;
}

.tutorial-completion-tips {
    text-align: left;
    background: var(--color-bg-tertiary, #f8f9fa);
    padding: 16px;
    border-radius: 8px;
    margin-top: 20px;
}

.tutorial-completion-tips h3 {
    margin: 0 0 12px 0;
    font-size: 1rem;
    color: var(--color-text-primary, #333);
}

.tutorial-completion-tips ul {
    margin: 0;
    padding-left: 20px;
}

.tutorial-completion-tips li {
    margin-bottom: 6px;
    color: var(--color-text-secondary, #666);
    font-size: 0.9rem;
}

.tutorial-completion-actions {
    padding: 0 24px 24px;
}

/* ===========================================
   动画定义
   =========================================== */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes scaleIn {
    from { transform: scale(0.8); }
    to { transform: scale(1); }
}

@keyframes bounceIn {
    0% { transform: scale(0); }
    50% { transform: scale(1.2); }
    100% { transform: scale(1); }
}

@keyframes tutorialPulse {
    0% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.05); opacity: 0.8; }
    100% { transform: scale(1); opacity: 1; }
}

@keyframes tutorialShake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-2px); }
    75% { transform: translateX(2px); }
}

@keyframes tutorialGlow {
    0% { box-shadow: 0 0 0 0 rgba(74, 144, 226, 0.4); }
    50% { box-shadow: 0 0 20px 8px rgba(74, 144, 226, 0.2); }
    100% { box-shadow: 0 0 0 0 rgba(74, 144, 226, 0.4); }
}

/* ===========================================
   响应式设计
   =========================================== */
@media (max-width: 768px) {
    .tutorial-welcome-content,
    .tutorial-completion-content {
        width: 95%;
        margin: 16px;
    }
    
    .tutorial-guide-bubble {
        max-width: calc(100vw - 32px);
        min-width: 280px;
    }
    
    .tutorial-welcome-header,
    .tutorial-welcome-body,
    .tutorial-completion-header,
    .tutorial-completion-body {
        padding-left: 16px;
        padding-right: 16px;
    }
    
    .tutorial-welcome-actions,
    .tutorial-bubble-actions {
        flex-direction: column;
        align-items: stretch;
    }
    
    .tutorial-btn,
    .tutorial-action-btn {
        width: 100%;
        margin-bottom: 8px;
    }
    
    .tutorial-btn:last-child,
    .tutorial-action-btn:last-child {
        margin-bottom: 0;
    }
    
    .tutorial-option label {
        padding: 8px;
    }
    
    .tutorial-hints {
        font-size: 0.75rem;
    }
}

@media (max-width: 480px) {
    .tutorial-welcome-content,
    .tutorial-completion-content {
        width: 100%;
        margin: 0;
        border-radius: 0;
        height: 100vh;
        display: flex;
        flex-direction: column;
        justify-content: center;
    }
    
    .tutorial-guide-bubble {
        position: fixed !important;
        bottom: 16px !important;
        left: 16px !important;
        right: 16px !important;
        top: auto !important;
        width: auto !important;
        max-width: none !important;
    }
    
    .tutorial-bubble-header {
        padding: 12px 12px 0;
    }
    
    .tutorial-bubble-content {
        padding: 0 12px 12px;
    }
    
    .tutorial-bubble-actions {
        padding: 12px;
    }
}

/* ===========================================
   主题适配
   =========================================== */
[data-theme="dark"] {
    --tutorial-overlay-color: rgba(0, 0, 0, 0.8);
}

[data-theme="dark"] .tutorial-welcome-content,
[data-theme="dark"] .tutorial-completion-content,
[data-theme="dark"] .tutorial-guide-bubble {
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border-light);
}

[data-theme="dark"] .tutorial-option input[type="radio"]:checked + label {
    background: rgba(74, 144, 226, 0.2);
}

[data-theme="dark"] .tutorial-completion-tips {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border-light);
}

/* ===========================================
   辅助功能支持
   =========================================== */
@media (prefers-reduced-motion: reduce) {
    .tutorial-welcome-content,
    .tutorial-completion-content,
    .tutorial-guide-bubble {
        animation: none;
        transform: none;
    }
    
    .tutorial-completion-icon {
        animation: none;
    }
    
    .tutorial-btn,
    .tutorial-action-btn {
        transition: none;
    }
    
    .tutorial-btn:hover,
    .tutorial-action-btn:hover {
        transform: none;
    }
}

/* 高对比度支持 */
@media (prefers-contrast: high) {
    .tutorial-welcome-content,
    .tutorial-completion-content,
    .tutorial-guide-bubble {
        border: 2px solid var(--color-text-primary);
    }
    
    .tutorial-btn-primary {
        background: #0066cc;
    }
    
    .tutorial-btn-primary:hover {
        background: #004499;
    }
}

/* ===========================================
   打印样式
   =========================================== */
@media print {
    .tutorial-welcome-dialog,
    .tutorial-completion-dialog,
    .tutorial-guide-bubble,
    .tutorial-highlight-overlay {
        display: none !important;
    }
}