/**
 * 节日主题样式
 */

/* 节日主题激活时的基础样式 */
body.holiday-theme-active {
    transition: background-color 0.5s ease;
}

/* 装饰元素容器 */
.holiday-decorations {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 9998;
    overflow: hidden;
}

/* 浮动图标 */
.holiday-icon-float {
    position: fixed;
    top: 20px;
    right: 20px;
    font-size: 48px;
    animation: holiday-float 3s ease-in-out infinite;
    opacity: 0.8;
    z-index: 9999;
}

@keyframes holiday-float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-10px) rotate(5deg); }
}

/* 装饰动画元素 */
.holiday-decoration {
    position: absolute;
    opacity: 0.3;
    animation: holiday-fall 10s linear infinite;
}

@keyframes holiday-fall {
    0% {
        transform: translateY(-100px) rotate(0deg);
        opacity: 0;
    }
    10% {
        opacity: 0.3;
    }
    90% {
        opacity: 0.3;
    }
    100% {
        transform: translateY(100vh) rotate(360deg);
        opacity: 0;
    }
}

/* 主题通知 */
.holiday-theme-notification {
    position: fixed;
    top: 80px;
    right: 20px;
    background: linear-gradient(135deg, var(--holiday-primary, #DC143C), var(--holiday-secondary, #FFD700));
    color: white;
    padding: 16px 24px;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
    z-index: 10000;
    transform: translateX(400px);
    opacity: 0;
    transition: all 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.holiday-theme-notification.show {
    transform: translateX(0);
    opacity: 1;
}

.holiday-notification-content {
    display: flex;
    align-items: center;
    gap: 12px;
}

.holiday-icon {
    font-size: 28px;
}

.holiday-message {
    font-size: 14px;
    font-weight: 500;
    white-space: nowrap;
}

.holiday-close-btn {
    background: rgba(255, 255, 255, 0.3);
    border: none;
    color: white;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 16px;
    line-height: 1;
    margin-left: 8px;
    transition: background 0.2s;
}

.holiday-close-btn:hover {
    background: rgba(255, 255, 255, 0.5);
}

/* ==================== 各节日特定样式 ==================== */

/* 春节主题 */
body.theme-spring-festival {
    --primary-color: #DC143C;
    --secondary-color: #FFD700;
    --bg-color: #FFF8DC;
}

body.theme-spring-festival .section {
    border: 1px solid rgba(220, 20, 60, 0.2);
}

body.theme-spring-festival .btn-primary {
    background: linear-gradient(135deg, #DC143C, #FF6347);
}

/* 元宵节主题 */
body.theme-lantern-festival {
    --primary-color: #FF6B6B;
    --secondary-color: #FFE66D;
    --bg-color: #FFF9E6;
}

/* 清明节主题 */
body.theme-qingming {
    --primary-color: #2E8B57;
    --secondary-color: #90EE90;
    --bg-color: #F0FFF0;
}

/* 劳动节主题 */
body.theme-labor-day {
    --primary-color: #4169E1;
    --secondary-color: #FFD700;
    --bg-color: #F0F8FF;
}

/* 端午节主题 */
body.theme-dragon-boat {
    --primary-color: #228B22;
    --secondary-color: #8B4513;
    --bg-color: #F5FFFA;
}

/* 中秋节主题 */
body.theme-mid-autumn {
    --primary-color: #4B0082;
    --secondary-color: #FFD700;
    --bg-color: #FFF8DC;
}

/* 国庆节主题 */
body.theme-national-day {
    --primary-color: #DE2910;
    --secondary-color: #FFDE00;
    --bg-color: #FFF5F5;
}

body.theme-national-day .section {
    border: 1px solid rgba(222, 41, 16, 0.2);
}

body.theme-national-day .btn-primary {
    background: linear-gradient(135deg, #DE2910, #FF4500);
}

/* 元旦主题 */
body.theme-new-year {
    --primary-color: #1E90FF;
    --secondary-color: #87CEEB;
    --bg-color: #F0F8FF;
}

/* 生日主题 */
body.theme-birthday {
    --primary-color: #FF69B4;
    --secondary-color: #FFB6C1;
    --bg-color: #FFF0F5;
    --holiday-primary: #FF69B4;
    --holiday-secondary: #FFB6C1;
    --holiday-background: #FFF0F5;
    --holiday-accent: #FF1493;
}

body.theme-birthday .section {
    border: 1px solid rgba(255, 105, 180, 0.2);
}

body.theme-birthday .btn-primary {
    background: linear-gradient(135deg, #FF69B4, #FF1493);
}

body.theme-birthday .card {
    border-color: rgba(255, 105, 180, 0.3);
}

body.theme-birthday .holiday-greeting-banner {
    background: linear-gradient(135deg, rgba(255, 105, 180, 0.95), rgba(255, 20, 147, 0.95));
}

/* 主题切换按钮（可选） */
.holiday-theme-switcher {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: white;
    border-radius: 50%;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
    z-index: 9999;
    font-size: 24px;
    transition: transform 0.2s, box-shadow 0.2s;
}

.holiday-theme-switcher:hover {
    transform: scale(1.1);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

/* 主题选择面板 */
.holiday-theme-panel {
    position: fixed;
    bottom: 80px;
    right: 20px;
    background: white;
    border-radius: 12px;
    padding: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    z-index: 9999;
    display: none;
    min-width: 200px;
}

.holiday-theme-panel.show {
    display: block;
    animation: holiday-panel-slide 0.3s ease;
}

@keyframes holiday-panel-slide {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.holiday-theme-panel h4 {
    margin: 0 0 12px 0;
    font-size: 14px;
    color: #333;
}

.holiday-theme-option {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.2s;
}

.holiday-theme-option:hover {
    background: #f5f5f5;
}

.holiday-theme-option.active {
    background: #e3f2fd;
}

.holiday-theme-option .theme-icon {
    font-size: 20px;
}

.holiday-theme-option .theme-name {
    font-size: 13px;
    color: #555;
}

/* 飘落元素 */
.falling-item {
    position: fixed;
    pointer-events: none;
    z-index: 9998;
    will-change: transform, opacity;
}

/* 节日祝福语横幅 */
.holiday-greeting-banner {
    position: fixed;
    top: 70px;
    left: 50%;
    transform: translateX(-50%) translateY(-100px);
    background: linear-gradient(135deg, rgba(255, 215, 0, 0.95), rgba(255, 140, 0, 0.95));
    padding: 12px 32px;
    border-radius: 50px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
    z-index: 10000;
    opacity: 0;
    transition: all 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.holiday-greeting-banner.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

.banner-content {
    display: flex;
    align-items: center;
    gap: 16px;
}

.banner-icon {
    font-size: 28px;
    animation: banner-icon-bounce 1s ease infinite;
}

@keyframes banner-icon-bounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-5px);
    }
}

.banner-text {
    font-size: 18px;
    font-weight: 600;
    color: #fff;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
    white-space: nowrap;
}

/* 烟花效果容器 */
.holiday-fireworks {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 9997;
}

.firework {
    position: absolute;
    width: 4px;
    height: 4px;
    border-radius: 50%;
}

@keyframes firework-explode {
    0% {
        transform: translate(0, 0);
        opacity: 1;
    }
    100% {
        transform: translate(var(--x), var(--y));
        opacity: 0;
    }
}

/* 移动端适配 */
@media (max-width: 768px) {
    .holiday-greeting-banner {
        top: 150px;
        padding: 10px 20px;
    }
    
    .banner-text {
        font-size: 14px;
    }
    
    .banner-icon {
        font-size: 20px;
    }
    
    .holiday-theme-notification {
        top: 70px;
        padding: 12px 16px;
    }
    
    .holiday-message {
        font-size: 12px;
    }
}

/* ==================== 深色模式节日主题背景 ==================== */

/* 深色模式动态背景容器 */
.holiday-dark-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    z-index: -9999;
    overflow: hidden;
    pointer-events: none;
}

/* 深色模式流动光点 */
.holiday-dark-particle {
    position: absolute;
    background: rgba(96, 165, 250, 0.2);
    border-radius: 50%;
    pointer-events: none;
    animation: holiday-dark-float linear infinite;
}

@keyframes holiday-dark-float {
    0% {
        transform: translate(0, 0) scale(1);
        opacity: 0.2;
    }
    50% {
        opacity: 0.6;
    }
    100% {
        transform: translate(var(--x-end), var(--y-end)) scale(var(--scale-end));
        opacity: 0;
    }
}

/* 深色模式下各节日主题背景 */
[data-theme="dark"] body.holiday-theme-active .holiday-dark-bg {
    display: block;
}

[data-theme="dark"] body.holiday-theme-active {
    background: #0f172a;
}

/* 深色模式春节主题 */
[data-theme="dark"] body.theme-spring-festival {
    --bg-color: #0f172a;
}

[data-theme="dark"] body.theme-spring-festival .holiday-dark-particle {
    background: rgba(220, 20, 60, 0.3);
}

/* 深色模式生日主题 */
[data-theme="dark"] body.theme-birthday {
    --bg-color: #0f172a;
}

[data-theme="dark"] body.theme-birthday .holiday-dark-particle {
    background: rgba(255, 105, 180, 0.3);
}

/* 深色模式国庆主题 */
[data-theme="dark"] body.theme-national-day {
    --bg-color: #0f172a;
}

[data-theme="dark"] body.theme-national-day .holiday-dark-particle {
    background: rgba(222, 41, 16, 0.3);
}

/* 深色模式元旦主题 */
[data-theme="dark"] body.theme-new-year {
    --bg-color: #0f172a;
}

[data-theme="dark"] body.theme-new-year .holiday-dark-particle {
    background: rgba(30, 144, 255, 0.3);
}

/* 深色模式中秋主题 */
[data-theme="dark"] body.theme-mid-autumn {
    --bg-color: #0f172a;
}

[data-theme="dark"] body.theme-mid-autumn .holiday-dark-particle {
    background: rgba(255, 215, 0, 0.3);
}