/* ===================================
   Love Space - 共享样式系统
   =================================== */

/* CSS 变量 - 主题色彩 */
:root {
    /* 主色调 - 浪漫粉紫系 */
    --primary-pink: #ff6b9d;
    --primary-purple: #c44dff;
    --primary-blue: #4d9fff;

    /* 渐变色 */
    --gradient-romantic: linear-gradient(135deg, #ff6b9d 0%, #c44dff 50%, #4d9fff 100%);
    --gradient-sunset: linear-gradient(135deg, #ff9a9e 0%, #fecfef 50%, #fecfef 100%);
    --gradient-night: linear-gradient(135deg, #0c1445 0%, #1a1a2e 50%, #16213e 100%);
    --gradient-aurora: linear-gradient(135deg, #a18cd1 0%, #fbc2eb 100%);

    /* 背景色 */
    --bg-dark: #0a0a0f;
    --bg-card: rgba(255, 255, 255, 0.05);
    --bg-glass: rgba(255, 255, 255, 0.1);

    /* 文字颜色 */
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --text-muted: rgba(255, 255, 255, 0.5);

    /* 阴影 */
    --shadow-glow: 0 0 30px rgba(255, 107, 157, 0.3);
    --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.3);

    /* 动画时间 */
    --transition-fast: 0.2s;
    --transition-normal: 0.3s;
    --transition-slow: 0.5s;

    /* 圆角 */
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 32px;
}

/* 全局重置 */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}

/* 通用工具类 */
.glass-effect {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.gradient-text {
    background: var(--gradient-romantic);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.glow-effect {
    box-shadow: var(--shadow-glow);
}

/* 按钮基础样式 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    font-size: 1rem;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-normal) ease;
    text-decoration: none;
}

.btn-primary {
    background: var(--gradient-romantic);
    color: white;
    box-shadow: 0 4px 15px rgba(255, 107, 157, 0.4);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(255, 107, 157, 0.5);
}

.btn-glass {
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-glass:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

/* 卡片样式 */
.card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 24px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    transition: all var(--transition-normal) ease;
}

.card:hover {
    border-color: rgba(255, 107, 157, 0.3);
    box-shadow: var(--shadow-glow);
    transform: translateY(-5px);
}

/* 动画关键帧 */
@keyframes float {

    0%,
    100% {
        transform: translateY(0px);
    }

    50% {
        transform: translateY(-20px);
    }
}

@keyframes pulse-glow {

    0%,
    100% {
        box-shadow: 0 0 20px rgba(255, 107, 157, 0.4);
    }

    50% {
        box-shadow: 0 0 40px rgba(255, 107, 157, 0.6), 0 0 60px rgba(196, 77, 255, 0.3);
    }
}

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

    100% {
        background-position: 200% center;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes heartbeat {

    0%,
    100% {
        transform: scale(1);
    }

    14% {
        transform: scale(1.1);
    }

    28% {
        transform: scale(1);
    }

    42% {
        transform: scale(1.1);
    }

    70% {
        transform: scale(1);
    }
}

/* 粒子背景容器 */
.particles-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

/* 响应式断点 */
@media (max-width: 768px) {
    html {
        font-size: 14px;
    }

    .card {
        padding: 16px;
    }

    .btn {
        padding: 10px 20px;
    }
}

@media (max-width: 480px) {
    html {
        font-size: 13px;
    }
}