/* 自定义样式和动画 */

@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;500;600;700;800&display=swap');

:root {
    --cyan: #06b6d4;
    --blue: #3b82f6;
    --slate-900: #0f172a;
    --slate-800: #1e293b;
    --slate-700: #334155;
    --slate-600: #475569;
    --slate-400: #94a3b8;
    --slate-300: #cbd5e1;
}

* {
    font-family: 'Poppins', sans-serif;
}

/* 动画 */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes glow {
    0%, 100% {
        box-shadow: 0 0 5px rgba(6, 182, 212, 0.5);
    }
    50% {
        box-shadow: 0 0 20px rgba(6, 182, 212, 0.8);
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-20px);
    }
}

.animate-fade-in {
    animation: fadeIn 0.8s ease-out;
}

.animate-slide-in-left {
    animation: slideInLeft 0.8s ease-out;
}

.animate-slide-in-right {
    animation: slideInRight 0.8s ease-out;
}

/* 顶部导航尺寸状态 */
#navbar {
    transition: all 0.3s ease;
}

.navbar-expanded {
    padding-top: 1.2rem;
    padding-bottom: 1.2rem;
}

.navbar-shrink {
    padding-top: 0.3rem;
    padding-bottom: 0.3rem;
}

#navbar-logo {
    height: 2.7rem;
    transition: height 0.3s ease, transform 0.3s ease;
}

.logo-expanded {
    height: 2.7rem;
}

.logo-shrink {
    height: 1.6rem;
}

#navbar-brand {
    transition: all 0.3s ease;
}

#navbar.navbar-shrink #navbar-brand {
    font-size: 0.95rem;
    letter-spacing: 0.04em;
    color: rgba(226, 232, 240, 0.85);
}

/* 平滑滚动 */
html {
    scroll-behavior: smooth;
}

/* 按钮样式增强 */
button {
    position: relative;
    overflow: hidden;
}

button::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

button:active::before {
    width: 300px;
    height: 300px;
}

/* 卡片悬停效果 */
.group {
    transition: all 0.3s ease;
}

.group:hover {
    transform: translateY(-5px);
}

/* 输入框焦点效果 */
input:focus,
textarea:focus {
    box-shadow: 0 0 20px rgba(6, 182, 212, 0.3);
}

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

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--slate-900);
}

::-webkit-scrollbar-thumb {
    background: var(--slate-700);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--slate-600);
}

/* 链接样式 */
a {
    text-decoration: none;
}

/* 特殊元素 */
.glass-effect {
    background: rgba(15, 23, 42, 0.7);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(100, 116, 139, 0.2);
}

/* 渐变文本 */
.gradient-text {
    background: linear-gradient(135deg, #06b6d4 0%, #3b82f6 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* 发光效果 */
.glow-border {
    border: 2px solid;
    border-image: linear-gradient(135deg, #06b6d4, #3b82f6) 1;
    animation: glow 3s ease-in-out infinite;
}

/* 响应式网格 */
@media (max-width: 640px) {
    .grid-cols-3 {
        grid-template-columns: 1fr;
    }
    
    .grid-cols-4 {
        grid-template-columns: 1fr 1fr;
    }
}