.header {
    text-align: center;
    margin-bottom: 3rem;
    padding: 2rem;
    background: var(--surface);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.header h1 {
    font-size: 3rem;
    font-weight: 800;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1rem;
    text-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.header p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 0;
    font-weight: 500;
}

.learning-modules {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.module-card {
    background: var(--surface);
    border-radius: var(--radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-lg);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.module-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--primary-gradient);
    transform: scaleX(0);
    transition: var(--transition-smooth);
}

.module-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.module-card:hover::before {
    transform: scaleX(1);
}

.module-card.islamic {
    border-left: 4px solid var(--islamic-color);
}

.module-card.islamic::before {
    background: var(--islamic-gradient);
}

.module-header {
    display: flex;
    align-items: center;
    margin-bottom: 1.5rem;
}

.module-icon {
    font-size: 3rem;
    margin-right: 1rem;
    filter: drop-shadow(0 2px 4px rgba(0,0,0,0.1));
}

.module-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

.module-subtitle {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin: 0.25rem 0 0 0;
    font-weight: 500;
}

.module-description {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.6;
}

.level-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 1rem;
}

.level-button {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 1rem;
    text-decoration: none;
    background: rgba(255, 255, 255, 0.8);
    border-radius: var(--radius-md);
    transition: var(--transition-bounce);
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
}

.level-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--primary-gradient);
    opacity: 0;
    transition: var(--transition-smooth);
    z-index: -1;
}

.level-button:hover,
.level-button:focus {
    transform: scale(1.05);
    border-color: var(--primary-color);
    text-decoration: none;
    color: white;
    outline: 3px solid var(--primary-color);
    outline-offset: 4px;
}

.level-button:hover::before,
.level-button:focus::before {
    opacity: 1;
}

.level-button:focus {
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.3);
}

.level-button.islamic:hover::before {
    background: var(--islamic-gradient);
}

.level-number {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.level-label {
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.footer {
    text-align: center;
    padding: 2rem;
    background: var(--surface);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    margin-top: 2rem;
}

.footer p {
    color: var(--text-muted);
    margin: 0;
    font-weight: 500;
}

.attribution {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.attribution p {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin: 0;
}

.creator-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition-smooth);
}

.creator-link:hover {
    color: var(--secondary-color);
    text-decoration: underline;
}

.module-card:nth-child(1) { animation-delay: 0.1s; }
.module-card:nth-child(2) { animation-delay: 0.2s; }
.module-card:nth-child(3) { animation-delay: 0.3s; }
.module-card:nth-child(4) { animation-delay: 0.4s; }