/* Alphabet Navigation Styles */

.alphabet-container {
    position: relative;
    margin: 3rem 0;
    padding: 2.5rem;
    background: #f8f9fa;
    border-radius: 12px;
    overflow: hidden;
}

.alphabet-pattern {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #4a90e2 0%, #357abd 100%);
}

.alphabet-title {
    margin: 0 0 1.5rem 0;
    font-size: 1.5rem;
    font-weight: 600;
    color: #2c3e50;
    text-align: center;
}

.alphabet-nav {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.alphabet-nav a,
.alphabet-nav span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 2.5rem;
    height: 2.5rem;
    padding: 0.5rem;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 6px;
    transition: all 0.2s ease;
}

.alphabet-nav a {
    background: #ffffff;
    color: #4a90e2;
    border: 2px solid #e1e8ed;
}

.alphabet-nav a:hover {
    background: #4a90e2;
    color: #ffffff;
    border-color: #4a90e2;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(74, 144, 226, 0.2);
}

.alphabet-nav a:active {
    transform: translateY(0);
}

.alphabet-nav span.active {
    background: #4a90e2;
    color: #ffffff;
    border: 2px solid #4a90e2;
    cursor: default;
    box-shadow: 0 2px 4px rgba(74, 144, 226, 0.3);
}

.alphabet-back-link {
    text-align: center;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid #e1e8ed;
}

.alphabet-back-link a {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    color: #4a90e2;
    text-decoration: none;
    font-weight: 500;
    border-radius: 6px;
    transition: all 0.2s ease;
}

.alphabet-back-link a:hover {
    background: #ffffff;
    color: #357abd;
}

/* Responsive Design */
@media (max-width: 768px) {
    .alphabet-container {
        padding: 1.5rem;
        margin: 2rem 0;
    }

    .alphabet-title {
        font-size: 1.25rem;
        margin-bottom: 1rem;
    }

    .alphabet-nav {
        gap: 0.4rem;
    }

    .alphabet-nav a,
    .alphabet-nav span {
        min-width: 2rem;
        height: 2rem;
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    .alphabet-nav a,
    .alphabet-nav span {
        min-width: 1.75rem;
        height: 1.75rem;
        font-size: 0.85rem;
        padding: 0.25rem;
    }
    
    .alphabet-back-link a {
        padding: 0.6rem 1.2rem;
        font-size: 0.9rem;
    }
}