/* 自定义工具类 */
@layer utilities {
    .text-shadow {
        text-shadow: 0 2px 4px rgba(0,0,0,0.1);
    }
    .text-gradient {
        background-clip: text;
        -webkit-background-clip: text;
        color: transparent;
        background-image: linear-gradient(to right, #3b82f6, #8b5cf6);
    }
    .bg-glass {
        background: rgba(255, 255, 255, 0.1);
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
        border: 1px solid rgba(255, 255, 255, 0.2);
    }
    .card-hover {
        transition: all 0.3s ease;
    }
    .card-hover:hover {
        transform: translateY(-5px);
        box-shadow: 0 10px 25px -5px rgba(59, 130, 246, 0.4);
    }
    .nav-scrolled {
        background-color: rgba(255, 255, 255, 0.95);
        box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    }
}

/* 暗黑模式样式 */
body.dark-mode {
    background-color: #121212;
    color: #e2e8f0;
}

body.dark-mode .bg-white {
    background-color: #1e293b;
}

body.dark-mode .bg-gray-50 {
    background-color: #0f172a;
}

body.dark-mode .text-gray-800 {
    color: #e2e8f0;
}

body.dark-mode .text-gray-700 {
    color: #cbd5e1;
}

body.dark-mode .text-gray-600 {
    color: #94a3b8;
}

body.dark-mode .text-gray-400 {
    color: #64748b;
}

body.dark-mode .border-gray-300 {
    border-color: #334155;
}

body.dark-mode .border-gray-200 {
    border-color: #334155;
}

body.dark-mode .bg-blue-50 {
    background-color: #1e3a8a;
}

body.dark-mode .bg-indigo-100 {
    background-color: #312e81;
}

body.dark-mode .bg-green-50 {
    background-color: #064e3b;
}

body.dark-mode .bg-purple-50 {
    background-color: #4c1d95;
}

body.dark-mode .bg-gray-100 {
    background-color: #334155;
}

body.dark-mode .shadow-md {
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
}

body.dark-mode .shadow-lg {
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.4);
}

body.dark-mode .shadow-xl {
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.5);
}

body.dark-mode .bg-gradient-to-br {
    background-image: linear-gradient(to bottom right, #1e293b, #334155);
}

body.dark-mode .project-card {
    background-color: #1e293b;
    color: #e2e8f0;
}

body.dark-mode .project-card:hover {
    box-shadow: 0 10px 25px -5px rgba(59, 130, 246, 0.3);
}

body.dark-mode .bg-blue-100 {
    background-color: #1e3a8a;
}

body.dark-mode .text-blue-800 {
    color: #93c5fd;
}

body.dark-mode .bg-green-100 {
    background-color: #064e3b;
}

body.dark-mode .text-green-800 {
    color: #86efac;
}

body.dark-mode .bg-purple-100 {
    background-color: #4c1d95;
}

body.dark-mode .text-purple-800 {
    color: #d8b4fe;
}

body.dark-mode .bg-yellow-100 {
    background-color: #78350f;
}

body.dark-mode .text-yellow-800 {
    color: #fcd34d;
}

body.dark-mode .bg-red-100 {
    background-color: #7f1d1d;
}

body.dark-mode .text-red-800 {
    color: #fca5a5;
}

body.dark-mode .bg-indigo-100 {
    background-color: #312e81;
}

body.dark-mode .text-indigo-800 {
    color: #a5b4fc;
}

/* 导航栏暗黑模式样式 */
body.dark-mode header {
    background-color: #1e293b;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
}

body.dark-mode #mobile-menu {
    background-color: #1e293b;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.4);
}

/* 页脚暗黑模式样式 */
body.dark-mode footer {
    background-color: #0f172a;
}

/* 表单元素暗黑模式样式 */
body.dark-mode input,
body.dark-mode textarea,
body.dark-mode select {
    background-color: #334155;
    color: #e2e8f0;
    border-color: #475569;
}

body.dark-mode input:focus,
body.dark-mode textarea:focus,
body.dark-mode select:focus {
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.3);
}

/* 按钮暗黑模式样式 */
body.dark-mode .bg-primary {
    background-color: #3b82f6;
    color: white;
}

body.dark-mode .bg-primary:hover {
    background-color: #2563eb;
}

body.dark-mode .bg-secondary {
    background-color: #10b981;
    color: white;
}

body.dark-mode .bg-secondary:hover {
    background-color: #059669;
}

body.dark-mode .bg-accent {
    background-color: #8b5cf6;
    color: white;
}

body.dark-mode .bg-accent:hover {
    background-color: #7c3aed;
}

/* 卡片暗黑模式样式 */
body.dark-mode .card-hover {
    background-color: #1e293b;
    color: #e2e8f0;
}

body.dark-mode .card-hover:hover {
    box-shadow: 0 10px 25px -5px rgba(59, 130, 246, 0.3);
}