/* Educational Theme and Youth Education Styles */
:root {
    --primary-blue: #0077d4;
    --dark-blue: #003777;
    --light-blue: #f0f9ff;
}

body {
    font-family: 'Inter', sans-serif;
    background: linear-gradient(135deg, var(--light-blue), #f3f4ff);
    min-height: 100vh;
}

/* Main Header */
.main-header {
    background: linear-gradient(to right, #ffffff, #f0f9ff);
    border-bottom: 4px solid var(--primary-blue);
    padding: 1rem;
    margin-bottom: 2rem;
}

.edu-badge {
    background-color: var(--primary-blue);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.game-container {
    background: white;
    border-radius: 1rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    padding: 2rem;
    margin: 0 auto;
    max-width: 1200px;
}

/* Youth-friendly buttons */
.edu-button {
    background-color: var(--primary-blue);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 0.75rem;
    font-weight: 600;
    transition: all 0.2s;
}

.edu-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 119, 212, 0.2);
}

/* Educational cards */
.edu-card {
    background: linear-gradient(135deg, #ffffff, #f8faff);
    border-radius: 1rem;
    padding: 1.5rem;
    border: 1px solid #e5e7eb;
    transition: all 0.2s;
}

.edu-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

/* Youth-friendly text */
.edu-title {
    color: var(--dark-blue);
    font-size: 1.875rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.edu-subtitle {
    color: var(--primary-blue);
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.edu-text {
    color: #4b5563;
    line-height: 1.6;
    font-size: 1.125rem;
}

/* Navigation */
.game-nav {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
}

.nav-link {
    color: var(--dark-blue);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    transition: all 0.2s;
}

.nav-link:hover {
    background-color: rgba(0, 119, 212, 0.1);
}

/* Accessibility */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

/* Animation for educational elements */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.animate-fade-in {
    animation: fadeIn 0.5s ease-out forwards;
}