/* C Programming Exam Questions Website Styles */

:root {
    --primary-color: #1a5276;
    --secondary-color: #2874a6;
    --accent-color: #f39c12;
    --text-color: #333;
    --bg-color: #f8f9fa;
    --card-bg: #ffffff;
    --border-color: #e0e0e0;
    --hover-color: #3498db;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
}

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

/* Header Styles */
header {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 40px 0;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

header h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.subtitle {
    font-size: 1.2rem;
    opacity: 0.9;
}

/* Navigation Styles */
.main-nav {
    background-color: var(--card-bg);
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

.main-nav ul {
    list-style: none;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    padding: 15px 0;
}

.main-nav li {
    margin: 0 15px;
}

.main-nav a {
    text-decoration: none;
    color: var(--primary-color);
    font-weight: 600;
    padding: 10px 20px;
    border-radius: 25px;
    transition: all 0.3s ease;
}

.main-nav a:hover {
    background-color: var(--primary-color);
    color: white;
}

/* Section Styles */
.section {
    padding: 40px 0;
    margin-bottom: 20px;
}

.section h2 {
    color: var(--primary-color);
    font-size: 2rem;
    margin-bottom: 30px;
    padding-bottom: 10px;
    border-bottom: 3px solid var(--accent-color);
}

/* Info Grid */
.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 30px;
}

.info-card {
    background: var(--card-bg);
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    text-align: center;
    transition: transform 0.3s ease;
}

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

.info-card h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
}

.info-card .number {
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--accent-color);
    margin: 10px 0;
}

/* Paper Card Styles */
.paper-card {
    background: var(--card-bg);
    margin: 30px 0;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 2px 15px rgba(0,0,0,0.1);
    border-left: 5px solid var(--primary-color);
}

.paper-card h3 {
    color: var(--primary-color);
    font-size: 1.5rem;
    margin-bottom: 15px;
}

.instruction {
    background: #fff3cd;
    padding: 15px;
    border-radius: 5px;
    margin-bottom: 20px;
    border-left: 4px solid var(--accent-color);
}

.question-block {
    margin: 25px 0;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 8px;
}

.question-block h4 {
    color: var(--secondary-color);
    margin-bottom: 15px;
    font-size: 1.2rem;
}

.question-block ul {
    list-style: none;
    padding-left: 0;
}

.question-block li {
    padding: 8px 0;
    padding-left: 20px;
    position: relative;
}

.question-block li:before {
    content: "▸";
    position: absolute;
    left: 0;
    color: var(--accent-color);
}

.question-block li strong {
    color: var(--primary-color);
}

/* Topics Grid */
.topics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
    margin-top: 30px;
}

.topic-card {
    background: var(--card-bg);
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    border-top: 4px solid var(--accent-color);
}

.topic-card h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
    font-size: 1.3rem;
}

.topic-card ul {
    list-style: none;
}

.topic-card li {
    padding: 5px 0;
    padding-left: 15px;
    position: relative;
}

.topic-card li:before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--accent-color);
    font-weight: bold;
}

/* Program Category Styles */
.program-category {
    background: var(--card-bg);
    margin: 20px 0;
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.program-category h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--accent-color);
}

.program-list {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 10px;
}

.program-list li {
    padding: 8px 15px;
    background: #f0f4f8;
    border-radius: 5px;
    border-left: 3px solid var(--secondary-color);
    transition: all 0.3s ease;
}

.program-list li:hover {
    background: var(--primary-color);
    color: white;
    transform: translateX(5px);
}

/* Footer Styles */
footer {
    background: var(--primary-color);
    color: white;
    text-align: center;
    padding: 30px 0;
    margin-top: 50px;
}

footer p {
    margin: 5px 0;
    opacity: 0.9;
}

/* Responsive Design */
@media (max-width: 768px) {
    header h1 {
        font-size: 1.8rem;
    }
    
    .subtitle {
        font-size: 1rem;
    }
    
    .main-nav ul {
        flex-direction: column;
        align-items: center;
    }
    
    .main-nav li {
        margin: 5px 0;
    }
    
    .section h2 {
        font-size: 1.5rem;
    }
    
    .paper-card {
        padding: 20px;
    }
    
    .info-grid {
        grid-template-columns: 1fr;
    }
    
    .topics-grid {
        grid-template-columns: 1fr;
    }
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

/* Print Styles */
@media print {
    .main-nav {
        display: none;
    }
    
    .paper-card {
        break-inside: avoid;
    }
}