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

.tabs-header {
    display: flex;
    background: var(--bg-sidebar);
    border-radius: 10px 10px 0 0;
    overflow: hidden;
}

.tab-button {
    padding: 15px 25px;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.3s;
    border-bottom: 3px solid transparent;
    font-size: 16px;
    font-weight: 500;
    flex: 1;
    text-align: center;
}

.tab-button:hover {
    color: var(--text-primary);
    background: rgba(59, 130, 246, 0.1);
}

.tab-button.active {
    color: var(--text-primary);
    border-bottom-color: var(--accent-color);
    background: rgba(59, 130, 246, 0.1);
}

.tabs-content {
    background: var(--bg-secondary);
    padding: 30px;
    border-radius: 0 0 10px 10px;
    box-shadow: var(--shadow);
}

.tab-panel {
    display: none;
}

.tab-panel.active {
    display: block;
    animation: fadeIn 0.4s ease-out;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 14px;
    color: var(--text-secondary);
}

.form-group input, .form-group textarea {
    width: 100%;
    padding: 10px 15px;
    border-radius: 8px;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    font-size: 16px;
}

.form-group input {
    height: 42px;
}

.form-group textarea {
    min-height: 120px;
    resize: vertical;
}

.form-group input:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--accent-color);
}

.submit-button {
    background-color: var(--accent-color);
    color: white;
    padding: 12px 20px;
    border: none;
    border-radius: 8px;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.3s;
    margin-top: 20px;
    width: 100%;
}

.submit-button:hover {
    background-color: var(--accent-hover);
}

.info-card {
    background-color: var(--bg-tertiary);
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 20px;
}

.info-card h3 {
    color: var(--accent-color);
    margin-bottom: 10px;
    font-size: 18px;
    font-weight: 500;
}

.featured-box {
    background-color: rgba(59, 130, 246, 0.1);
    border-radius: 8px;
    padding: 20px;
    margin: 20px 0;
    text-align: center;
    border-left: 4px solid var(--accent-color);
}

.contact-icon {
    width: 40px;
    height: 40px;
    background-color: rgba(59, 130, 246, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-color);
    margin-right: 15px;
}

.contact-item {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
}

.contact-item-content {
    flex: 1;
}

.contact-item-content p {
    margin: 0;
    color: var(--text-secondary);
}

.contact-item-content a {
    color: var(--accent-color);
    text-decoration: none;
}

.contact-item-content a:hover {
    text-decoration: underline;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 30px;
}

.feature-card {
    background-color: var(--bg-tertiary);
    border-radius: 8px;
    padding: 20px;
    text-align: center;
}

.feature-icon {
    font-size: 40px;
    color: var(--accent-color);
    margin-bottom: 15px;
}

.success-message {
    background-color: rgba(16, 185, 129, 0.1);
    color: #10b981;
    border-left: 4px solid #10b981;
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 20px;
}

.error-message {
    color: #ef4444;
    font-size: 0.875rem;
    margin-top: 4px;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 768px) {
    .contact-grid {
        grid-template-columns: 1fr;
    }

    .feature-grid {
        grid-template-columns: 1fr;
    }

    .tabs-header {
        flex-direction: column;
        border-radius: 10px 10px 0 0;
    }

    .tab-button {
        border-bottom: none;
        border-left: 3px solid transparent;
    }

    .tab-button.active {
        border-bottom: none;
        border-left: 3px solid var(--accent-color);
    }
}