/**
 * 文件名：styles/onboarding.css
 * 作用：铜鼓之声新手引导系统样式（条形进度条优化版）
 * 版本：v9.0.0
 * 特点：条形进度条、按钮防溢出、移动端深度适配、阅读/书架页面完整引导
 */

/* ===============================
   全局变量定义
=============================== */
:root {
    --onboarding-z-base: 99998;
    --onboarding-z-highlight: 99997;
    --onboarding-z-tooltip: 99999;
    --onboarding-transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --onboarding-transition-normal: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --onboarding-transition-bounce: 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ===============================
   全局遮罩层（半透明，不遮挡视野）
=============================== */
.onboarding-overlay {
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(2px);
    -webkit-backdrop-filter: blur(2px);
    z-index: var(--onboarding-z-base);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--onboarding-transition-normal),
                visibility var(--onboarding-transition-normal);
    pointer-events: none;
}

.onboarding-overlay.active {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

/* ===============================
   目标元素高亮（边框 + 发光效果）
=============================== */
.onboarding-target-highlight {
    position: relative !important;
    z-index: var(--onboarding-z-highlight) !important;
    pointer-events: auto !important;
    border-radius: inherit;
    box-shadow: 
        0 0 0 3px var(--accent-primary),
        0 0 0 8px rgba(24, 24, 27, 0.12),
        0 8px 32px rgba(24, 24, 27, 0.2) !important;
    transition: box-shadow var(--onboarding-transition-normal);
    animation: onboardingPulse 2.5s ease-in-out infinite;
}

.onboarding-target-highlight::after {
    content: '';
    position: absolute;
    inset: -3px;
    border-radius: inherit;
    border: 2px solid var(--accent-primary);
    opacity: 0.6;
    pointer-events: none;
    animation: onboardingGlow 2s ease-in-out infinite;
}

@keyframes onboardingPulse {
    0%, 100% {
        box-shadow: 
            0 0 0 3px var(--accent-primary),
            0 0 0 8px rgba(24, 24, 27, 0.12),
            0 8px 32px rgba(24, 24, 27, 0.2);
    }
    50% {
        box-shadow: 
            0 0 0 4px var(--accent-primary),
            0 0 0 12px rgba(24, 24, 27, 0.18),
            0 12px 48px rgba(24, 24, 27, 0.3);
    }
}

@keyframes onboardingGlow {
    0%, 100% {
        opacity: 0.4;
        transform: scale(1);
    }
    50% {
        opacity: 0.8;
        transform: scale(1.02);
    }
}

[data-theme="dark"] .onboarding-target-highlight {
    box-shadow: 
        0 0 0 3px var(--accent-primary),
        0 0 0 8px rgba(244, 244, 245, 0.12),
        0 8px 32px rgba(244, 244, 245, 0.2) !important;
}

[data-theme="dark"] .onboarding-target-highlight::after {
    border-color: var(--accent-primary);
}

/* ===============================
   引导提示框（Tooltip）- 无箭头
=============================== */
.onboarding-tooltip-wrapper {
    position: fixed;
    z-index: var(--onboarding-z-tooltip);
    pointer-events: none;
    opacity: 0;
    visibility: hidden;
    transform: scale(0.95) translateY(8px);
    transition: 
        opacity var(--onboarding-transition-normal),
        transform var(--onboarding-transition-bounce),
        visibility var(--onboarding-transition-normal);
    max-width: 90vw;
}

.onboarding-tooltip-wrapper.active {
    opacity: 1;
    visibility: visible;
    transform: scale(1) translateY(0);
    pointer-events: auto;
}

.onboarding-tooltip {
    position: relative;
    max-width: 380px;
    min-width: 300px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 24px;
    box-shadow: 
        0 8px 32px rgba(0, 0, 0, 0.12),
        0 2px 8px rgba(0, 0, 0, 0.08);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    display: flex;
    flex-direction: column;
    gap: 16px;
    max-height: 80vh;
    overflow-y: auto;
}

/* 提示框头部 */
.onboarding-tooltip-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 12px;
}

.onboarding-tooltip-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
    line-height: 1.4;
    letter-spacing: -0.01em;
}

.onboarding-tooltip-step {
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    white-space: nowrap;
    background: var(--bg-tertiary);
    padding: 4px 10px;
    border-radius: 8px;
}

.onboarding-tooltip-close {
    background: transparent;
    border: none;
    color: var(--text-tertiary);
    cursor: pointer;
    padding: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    transition: all var(--onboarding-transition-fast);
    flex-shrink: 0;
}

.onboarding-tooltip-close:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    transform: scale(1.05);
}

/* 提示框内容 */
.onboarding-tooltip-description {
    font-size: 0.92rem;
    line-height: 1.7;
    color: var(--text-secondary);
    margin: 0;
}

/*  条形进度条（替代圆点） */
.onboarding-progress-bar {
    width: 100%;
    height: 4px;
    background: var(--bg-tertiary);
    border-radius: 2px;
    overflow: hidden;
    margin-top: 8px;
}

.onboarding-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-primary), var(--accent-hover));
    border-radius: 2px;
    transition: width var(--onboarding-transition-normal);
    width: 0%;
}

.onboarding-progress-text {
    font-size: 0.75rem;
    color: var(--text-tertiary);
    text-align: right;
    margin-top: 4px;
    font-weight: 500;
}

/* 操作按钮组 */
.onboarding-tooltip-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    margin-top: 4px;
    flex-shrink: 0;
}

.onboarding-btn {
    padding: 10px 20px;
    border-radius: 12px;
    font-size: 0.88rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--onboarding-transition-fast);
    border: none;
    outline: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    white-space: nowrap;
}

.onboarding-btn-secondary {
    background: transparent;
    color: var(--text-secondary);
    flex: 0 0 auto;
}

.onboarding-btn-secondary:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.onboarding-btn-primary {
    background: var(--accent-primary);
    color: var(--bg-primary);
    box-shadow: 0 4px 14px var(--accent-glow);
    flex: 1;
    max-width: 140px;
}

.onboarding-btn-primary:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 18px var(--accent-glow);
}

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

/* ===============================
   最后一步特殊样式（完成仪式感）
=============================== */
.onboarding-tooltip-wrapper.final-step .onboarding-tooltip {
    border-color: var(--accent-primary);
    box-shadow: 
        0 8px 32px rgba(0, 0, 0, 0.15),
        0 0 0 1px var(--accent-glow);
}

.onboarding-tooltip-wrapper.final-step .onboarding-tooltip-title {
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent-primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.onboarding-tooltip-wrapper.final-step .onboarding-progress-fill {
    background: linear-gradient(90deg, var(--accent-primary), #22c55e);
}

@keyframes onboardingCelebrate {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

.onboarding-tooltip-wrapper.final-step .onboarding-tooltip {
    animation: onboardingCelebrate 0.6s ease-in-out;
}

/* ===============================
   移动端适配（底部卡片模式）
=============================== */
@media (max-width: 768px) {
    .onboarding-overlay {
        background-color: rgba(0, 0, 0, 0.6);
        backdrop-filter: blur(4px);
    }

    .onboarding-tooltip-wrapper {
        left: 16px !important;
        right: 16px !important;
        bottom: 24px !important;
        top: auto !important;
        transform: translateY(100%);
        max-width: calc(100vw - 32px);
    }

    .onboarding-tooltip-wrapper.active {
        transform: translateY(0);
    }

    .onboarding-tooltip {
        max-width: none;
        box-shadow: 
            0 -8px 32px rgba(0, 0, 0, 0.15),
            0 -2px 8px rgba(0, 0, 0, 0.08);
        padding: 20px;
        max-height: 60vh;
    }

    .onboarding-tooltip-actions {
        flex-direction: column;
        gap: 10px;
    }

    .onboarding-btn {
        width: 100%;
        max-width: none;
    }

    .onboarding-progress-bar {
        height: 5px;
    }

    .onboarding-target-highlight {
        box-shadow: 
            0 0 0 3px var(--accent-primary),
            0 0 0 6px rgba(24, 24, 27, 0.1),
            0 4px 16px rgba(24, 24, 27, 0.15) !important;
    }
}

/* ===============================
   深色模式适配
=============================== */
[data-theme="dark"] .onboarding-overlay {
    background-color: rgba(0, 0, 0, 0.6);
}

[data-theme="dark"] .onboarding-tooltip {
    box-shadow: 
        0 8px 32px rgba(0, 0, 0, 0.4),
        0 2px 8px rgba(0, 0, 0, 0.2);
    border-color: rgba(255, 255, 255, 0.1);
}

[data-theme="dark"] .onboarding-tooltip-step {
    background: rgba(255, 255, 255, 0.08);
}

/* ===============================
   辅助类
=============================== */
.onboarding-scroll-target {
    scroll-margin-top: 140px;
    scroll-margin-bottom: 140px;
    scroll-behavior: smooth;
}

.onboarding-no-interaction {
    pointer-events: none !important;
}