/* =================================
   Cursor Insider 动画系统
   ================================= */

/* ============= 滚动渐入动画 ============= */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

.reveal-left {
    opacity: 0;
    transform: translateX(-30px);
    transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}

.reveal-left.visible {
    opacity: 1;
    transform: translateX(0);
}

.reveal-right {
    opacity: 0;
    transform: translateX(30px);
    transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}

.reveal-right.visible {
    opacity: 1;
    transform: translateX(0);
}

.reveal-scale {
    opacity: 0;
    transform: scale(0.95);
    transition: opacity 0.6s var(--ease-out), transform 0.6s var(--ease-out);
}

.reveal-scale.visible {
    opacity: 1;
    transform: scale(1);
}

/* 延迟变体 */
.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }
.delay-5 { transition-delay: 0.5s; }
.delay-6 { transition-delay: 0.6s; }

/* ============= Hero 背景动效 ============= */
.hero-gradient-bg {
    position: relative;
    overflow: hidden;
}

.hero-gradient-bg::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(
        ellipse at 30% 50%,
        rgba(255, 255, 255, 0.02) 0%,
        transparent 50%
    ),
    radial-gradient(
        ellipse at 70% 50%,
        rgba(255, 255, 255, 0.015) 0%,
        transparent 50%
    );
    animation: hero-gradient-shift 20s ease-in-out infinite;
    pointer-events: none;
}

@keyframes hero-gradient-shift {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    25% { transform: translate(2%, -2%) rotate(1deg); }
    50% { transform: translate(-1%, 1%) rotate(-0.5deg); }
    75% { transform: translate(1%, 2%) rotate(0.5deg); }
}

/* Hero 网格背景 */
.hero-grid-bg {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse at center, black 0%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse at center, black 0%, transparent 70%);
    pointer-events: none;
}

/* ============= 数字计数动画 ============= */
.count-up {
    display: inline-block;
    font-variant-numeric: tabular-nums;
}

/* ============= 卡片悬浮效果 ============= */
.hover-lift {
    transition: transform var(--duration-base) var(--ease-out),
                box-shadow var(--duration-base) var(--ease-out);
}

.hover-lift:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

/* ============= 脉冲动画 ============= */
@keyframes pulse-glow {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(255, 255, 255, 0.3);
    }
    50% {
        box-shadow: 0 0 0 12px rgba(255, 255, 255, 0);
    }
}

.pulse-glow {
    animation: pulse-glow 2s ease-in-out infinite;
}

/* ============= 闪光效果 ============= */
@keyframes shimmer {
    0% { background-position: -200% center; }
    100% { background-position: 200% center; }
}

.shimmer {
    background: linear-gradient(
        90deg,
        var(--color-bg-card) 25%,
        var(--color-bg-card-hover) 50%,
        var(--color-bg-card) 75%
    );
    background-size: 200% 100%;
    animation: shimmer 2s infinite;
}

/* ============= 浮动动画 ============= */
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

.float {
    animation: float 4s ease-in-out infinite;
}

/* ============= 横向滚动/Marquee ============= */
@keyframes scroll-left {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

.marquee {
    overflow: hidden;
    white-space: nowrap;
}

.marquee-inner {
    display: inline-flex;
    animation: scroll-left 30s linear infinite;
}

.marquee:hover .marquee-inner {
    animation-play-state: paused;
}

/* ============= 图片照片墙滚动 ============= */
@keyframes photo-scroll {
    0% { transform: translateX(0); }
    100% { transform: translateX(calc(-280px * var(--photo-count, 6))); }
}

.photo-scroll-track {
    display: flex;
    gap: var(--space-4);
    animation: photo-scroll 40s linear infinite;
    width: max-content;
}

.photo-scroll-track:hover {
    animation-play-state: paused;
}

/* ============= 渐变边框动画 ============= */
@keyframes border-rotate {
    0% { --angle: 0deg; }
    100% { --angle: 360deg; }
}

.animated-border {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.animated-border::before {
    content: '';
    position: absolute;
    inset: 0;
    padding: 1px;
    border-radius: inherit;
    background: conic-gradient(
        from 0deg,
        var(--color-accent),
        var(--color-brand-purple),
        var(--color-brand-blue),
        var(--color-accent)
    );
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    animation: border-rotate 4s linear infinite;
    pointer-events: none;
}

/* ============= 淡入淡出 ============= */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

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

.fade-in {
    animation: fadeIn 0.5s var(--ease-out) forwards;
}

.fade-in-up {
    animation: fadeInUp 0.6s var(--ease-out) forwards;
}

/* ============= 光标跟随光效（JS控制） ============= */
.cursor-glow {
    position: fixed;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: radial-gradient(
        circle,
        rgba(255, 255, 255, 0.02) 0%,
        transparent 70%
    );
    pointer-events: none;
    z-index: 0;
    transition: transform 0.3s var(--ease-out);
    will-change: transform;
}

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

.skeleton-text {
    height: 1em;
    margin-bottom: 0.5em;
    width: 80%;
}

.skeleton-text:last-child {
    width: 60%;
}

.skeleton-avatar {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-full);
}

.skeleton-card {
    height: 200px;
}

/* ============= 加载旋转器 ============= */
.spinner {
    width: 24px;
    height: 24px;
    border: 2px solid var(--color-border);
    border-top-color: var(--color-accent);
    border-radius: var(--radius-full);
    animation: spin 0.6s linear infinite;
}

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

/* ============= 响应式动画减弱 ============= */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .reveal, .reveal-left, .reveal-right, .reveal-scale {
        opacity: 1;
        transform: none;
    }
    
    .hero-gradient-bg::before {
        animation: none;
    }
    
    .photo-scroll-track {
        animation: none;
    }
}