/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

/* Header */
header {
    text-align: center;
    margin-bottom: 3rem;
    color: white;
}

header h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

header p {
    font-size: 1.2rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
}

/* Tabs */
.tabs {
    display: flex;
    justify-content: center;
    margin-bottom: 2rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 0.5rem;
    backdrop-filter: blur(10px);
}

.tab-btn {
    background: none;
    border: none;
    color: white;
    padding: 0.75rem 1.5rem;
    margin: 0 0.25rem;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.tab-btn:hover {
    background: rgba(255, 255, 255, 0.2);
}

.tab-btn.active {
    background: white;
    color: #667eea;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

/* Tab content */
.tab-content {
    display: none;
    animation: fadeIn 0.5s ease-in;
}

.tab-content.active {
    display: block;
}

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

/* Cards */
.card {
    background: white;
    border-radius: 16px;
    padding: 2rem;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    margin-bottom: 2rem;
}

.card h2 {
    color: #667eea;
    font-size: 2rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.card h3 {
    color: #764ba2;
    font-size: 1.3rem;
    margin: 1.5rem 0 0.5rem 0;
    font-weight: 600;
}

.card p {
    color: #666;
    font-size: 1rem;
    margin-bottom: 1rem;
}

/* Features grid */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.feature {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: white;
    padding: 1.5rem;
    border-radius: 12px;
    text-align: center;
}

.feature h3 {
    color: white;
    margin-bottom: 0.5rem;
}

.feature p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.9rem;
}

/* Methodology steps */
.methodology-step {
    background: #f8f9fa;
    padding: 1.5rem;
    border-radius: 12px;
    margin-bottom: 1.5rem;
    border-left: 4px solid #667eea;
}

.methodology-step h3 {
    color: #667eea;
    margin-bottom: 0.5rem;
}

.methodology-step ul {
    margin-left: 1.5rem;
    margin-top: 0.5rem;
}

.methodology-step li {
    color: #666;
    margin-bottom: 0.25rem;
}

/* Examples */
.example {
    background: #f8f9fa;
    padding: 1.5rem;
    border-radius: 12px;
    margin-bottom: 2rem;
    border: 1px solid #e9ecef;
}

.example h3 {
    color: #667eea;
    margin-bottom: 1rem;
}

.framework-application {
    background: white;
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    border: 1px solid #dee2e6;
}

.framework-application h4 {
    color: #764ba2;
    margin-bottom: 0.5rem;
}

.framework-application ol {
    margin-left: 1.5rem;
}

.framework-application li {
    color: #666;
    margin-bottom: 0.25rem;
}

.code-example {
    background: #2d3748;
    border-radius: 8px;
    overflow: hidden;
}

.code-example h4 {
    background: #4a5568;
    color: white;
    padding: 0.75rem 1rem;
    margin: 0;
    font-size: 0.9rem;
}

.code-example pre {
    margin: 0;
    padding: 1rem;
    overflow-x: auto;
}

.code-example code {
    font-family: 'Fira Code', 'Monaco', 'Consolas', monospace;
    font-size: 0.9rem;
    line-height: 1.5;
}

/* Resources grid */
.resources-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.resource {
    background: linear-gradient(135deg, #a8edea 0%, #fed6e3 100%);
    padding: 1.5rem;
    border-radius: 12px;
    border: 1px solid #e9ecef;
}

.resource h3 {
    color: #667eea;
    margin-bottom: 1rem;
    text-align: center;
}

.resource ul {
    list-style: none;
}

.resource li {
    color: #666;
    padding: 0.5rem 0;
    border-bottom: 1px solid rgba(102, 102, 102, 0.1);
}

.resource li:last-child {
    border-bottom: none;
}

.resource a {
    color: #667eea;
    text-decoration: none;
    transition: color 0.3s ease;
}

.resource a:hover {
    color: #764ba2;
    text-decoration: underline;
}

/* Responsive design */
@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }
    
    header h1 {
        font-size: 2rem;
    }
    
    .tabs {
        flex-direction: column;
    }
    
    .tab-btn {
        margin: 0.25rem 0;
    }
    
    .features {
        grid-template-columns: 1fr;
    }
    
    .resources-grid {
        grid-template-columns: 1fr;
    }
    
    .card {
        padding: 1.5rem;
    }
}

/* Prism.js theme overrides */
pre[class*="language-"] {
    background: #2d3748 !important;
    border-radius: 8px !important;
}

code[class*="language-"] {
    color: #e2e8f0 !important;
}

.token.keyword {
    color: #ff6b6b !important;
}

.token.string {
    color: #51cf66 !important;
}

.token.comment {
    color: #868e96 !important;
}

.token.function {
    color: #74c0fc !important;
}