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

body {
    background: linear-gradient(90deg, 
    #1e3a8a 0%, 
    #1e40af 15%, 
    #2563eb 30%, 
    #3b82f6 50%, 
    #60a5fa 70%, 
    #93c5fd 85%, 
    #bfdbfe 100%
);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.header {
    background: linear-gradient(90deg, 
    #1e3a8a 0%, 
    #1e40af 15%, 
    #2563eb 30%, 
    #3b82f6 50%, 
    #60a5fa 70%, 
    #93c5fd 85%, 
    #bfdbfe 100%
);
    color: white;
    padding: 3rem 0;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    margin-bottom: 3rem;
}

.header h1 {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700; 
    letter-spacing: -0.5px;
    margin: 0;
}

/* Main content */
.main {
    padding-bottom: 3rem;
}

.content {
    background: white;
    border-radius: 12px;
    padding: 3rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 
                0 2px 4px -1px rgba(0, 0, 0, 0.06);
    margin: 0 auto;
    max-width: 800px;
}

.content h2 {
    text-align: center;
    font-size: 1.8rem;
    font-weight: 600;
    color: #1e40af;
    margin-bottom: 2rem;
    line-height: 1.4;
}

.text-content {
    font-size: 1.1rem;
}

.text-content p {
    text-align: justify;
    margin-bottom: 1.5rem;
    color: #4b5563;
    line-height: 1.7;
}

/* Image placeholder */
.image-placeholder {
    background: #f1f5f9;
    border: 2px dashed #cbd5e1;
    border-radius: 8px;
    padding: 3rem;
    margin: 2rem 0;
    text-align: center;
}

.image-placeholder img {
    max-width: 100%;
    height: auto;
    border-radius: 6px;
}

.image-caption {
    display: block;
    margin-top: 1rem;
    font-style: italic;
    color: #64748b;
    font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 768px) {
    .header {
        padding: 2rem 0;
    }
    
    .header h1 {
        font-size: 2rem;
    }
    
    .content {
        padding: 2rem;
        margin: 0 1rem;
    }
    
    .content h2 {
        font-size: 1.5rem;
    }
    
    .text-content {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .header h1 {
        font-size: 1.75rem;
    }
    
    .content {
        padding: 1.5rem;
    }
    
    .content h2 {
        font-size: 1.3rem;
    }
}