/* Pharmacy Board Prep Styles */
:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
    --bg: #f8fafc;
    --card-bg: #ffffff;
    --text: #1e293b;
    --text-muted: #64748b;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
}

.navbar {
    background: var(--primary);
    color: white;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-links a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: opacity 0.2s;
}

.nav-links a:hover {
    opacity: 0.8;
}

#hero {
    text-align: center;
    padding: 4rem 2rem;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
}

#hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
}

#hero p {
    font-size: 1.25rem;
    opacity: 0.9;
    margin-bottom: 2rem;
}

.stats {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin-top: 2rem;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: bold;
}

.stat-label {
    font-size: 0.875rem;
    opacity: 0.8;
}

section {
    padding: 4rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

h2 {
    font-size: 2rem;
    margin-bottom: 2rem;
    color: var(--text);
}

.topics-grid .grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.topic-card {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
}

.topic-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.12);
}

.topic-card h3 {
    margin-bottom: 0.5rem;
    color: var(--primary);
}

.topic-card p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.progress-bar {
    height: 8px;
    background: #e2e8f0;
    border-radius: 4px;
    overflow: hidden;
}

.progress {
    height: 100%;
    width: 0%;
    background: var(--secondary);
    transition: width 0.5s ease;
}

.table-filters {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.5rem 1rem;
    border: 2px solid #e2e8f0;
    background: white;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.2s;
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

.tables-container {
    display: grid;
    gap: 1rem;
}

.table-card {
    background: var(--card-bg);
    border-radius: 8px;
    padding: 1.5rem;
    box-shadow: 0 2px 4px rgba(0,0,0,0.06);
}

.table-card h4 {
    margin-bottom: 1rem;
    color: var(--primary);
}

.quiz-container {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 2rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    max-width: 800px;
    margin: 0 auto;
}

.topic-selector {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
    margin-top: 2rem;
}

.topic-btn {
    padding: 1rem 2rem;
    font-size: 1rem;
    border: 2px solid var(--primary);
    background: white;
    color: var(--primary);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s;
}

.topic-btn:hover {
    background: var(--primary);
    color: white;
}

#question-content {
    font-size: 1.25rem;
    margin: 1.5rem 0;
    line-height: 1.8;
}

#answer-options {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin: 1.5rem 0;
}

.answer-option {
    padding: 1rem;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s;
}

.answer-option:hover {
    border-color: var(--primary);
    background: #f8fafc;
}

.answer-option.selected {
    border-color: var(--primary);
    background: #eff6ff;
}

.answer-option.correct {
    border-color: var(--secondary);
    background: #ecfdf5;
}

.answer-option.incorrect {
    border-color: var(--danger);
    background: #fef2f2;
}

.quiz-controls {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 2rem;
}

button {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    transition: all 0.2s;
}

#submit-btn {
    background: var(--primary);
    color: white;
}

#submit-btn:hover {
    background: var(--primary-dark);
}

#next-btn {
    background: var(--secondary);
    color: white;
}

.question-counter {
    text-align: center;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.explanation {
    background: #f8fafc;
    border-left: 4px solid var(--primary);
    padding: 1rem;
    margin-top: 1rem;
    border-radius: 0 8px 8px 0;
}

@media (max-width: 768px) {
    .navbar {
        flex-direction: column;
        gap: 1rem;
    }
    
    .nav-links {
        gap: 1rem;
    }
    
    #hero h1 {
        font-size: 2rem;
    }
    
    .stats {
        flex-direction: column;
        gap: 1.5rem;
    }
}