.account-layout {
    display: grid;
    grid-template-columns: 1fr;
}

.account-sidebar {
    flex: 0 0 240px;
    position: sticky;
    top: 20px;
}

.account-nav {
    position: sticky;
    top: 20px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    background: #ffffff;
    border-radius: 12px;
}

.account-nav .nav-item {
    position: relative;
    padding: 12px 16px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    gap: 12px;
    color: #475569;
    text-decoration: none;
    font-size: 16px;
    font-weight: 500;
    transition: all 0.2s ease;
    cursor: pointer;
    box-shadow: 0 3px 21px rgba(0, 0, 0, 0.06);
}

.account-nav .nav-item svg {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
}

.account-nav .nav-item span {
    flex: 1;
}

.account-nav .nav-item.active {
    background: #eef2ff;
    color: var(--color-primary);
    padding-left: 19px;
}

.account-nav .nav-item.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 24px;
    background: var(--color-primary);
    border-radius: 0 3px 3px 0;
}

.account-nav .nav-item:hover {
    background: #f1f5f9;
    color: #0f172a;
}

.account-nav .nav-item.active:hover {
    background: #e0e7ff;
}

.account-page {
    display: none;
}

.account-page.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

.account-page .account-title {
    color: var(--text-secondary-color);
    font-size: var(--font-size-2xl);
    margin-block: 0 var(--spacing-lg);
}

.account-page .profile-form {
    padding: var(--spacing-lg);
    background: white;
    box-shadow: 0 3px 21px rgba(0, 0, 0, 0.06);
    border-radius: 10px;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    max-width: 1000px;
}

.account-page .profile-form .form-actions {
    display: flex;
    gap: var(--spacing-sm);
}

.account-page .profile-form .form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

.account-page .profile-form .btn {
    align-self: flex-start;
    margin-top: var(--spacing-sm);
    padding: 10px 32px;
}

.account-page .profile-form input {
    padding: 12px 14px;
}

.account-page .orders-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.account-page .orders-list .order-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
    background: white;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.account-page .orders-list .order-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.account-page .orders-list .order-item .order-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.account-page .orders-list .order-item .order-info .order-number {
    font-weight: 600;
    color: var(--text-primary-color);
}

.account-page .orders-list .order-item .order-info .order-date {
    font-size: var(--font-size-sm);
    color: var(--text-muted-color);
}

.account-page .orders-list .order-item .order-status {
    padding: 4px 12px;
    border-radius: 20px;
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.account-page .orders-list .order-item .order-status.status-delivered {
    background: #dcfce7;
    color: #166534;
}

.account-page .orders-list .order-item .order-status.status-shipped {
    background: #fef3c7;
    color: #92400e;
}

.account-page .orders-list .order-item .order-status.status-pending {
    background: #fef9c3;
    color: #854d0e;
}

.account-page .orders-list .order-item .order-status.status-cancelled {
    background: #fee2e2;
    color: #991b1b;
}

.account-page .security-info {
    padding-top: 10px;
    border-top: 1px solid #e0e0e0;
}

.account-page .security-info .info-item {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    font-size: 14px;
    border-bottom: 1px solid #f5f5f5;
}

.account-page .security-info .info-item:last-child {
    border-bottom: none;
}

.account-page .security-info .info-label {
    color: #666;
    font-weight: 500;
}

.account-page .security-info .info-value {
    color: #333;
    font-weight: 400;
}

.account-page .security-info .info-value.online {
    color: #4caf50;
    font-weight: 600;
}

.account-page .security-info .info-value.offline {
    color: #999;
}

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

@media (min-width: 768px) {
    .account-layout {
        gap: var(--spacing-2xl);
        grid-template-columns: 230px 1fr;
        margin-block: var(--spacing-xl);
        width: 100%;
    }
}

@media (max-width: 767px) {
    .account-layout {
        display: block;
        width: 100%;
        margin-block: var(--spacing-md);
    }

    .account-sidebar {
        flex: none;
        width: 100%;
        position: static;
        overflow: visible;
        min-width: 160px;
        padding: 0 4px;
        margin-bottom: var(--spacing-md);
    }

    .account-nav {
        flex-direction: row;
        overflow-x: auto;
        overflow-y: hidden;
        padding: 4px 8px;
        flex-wrap: nowrap;
        gap: 8px;
        border-radius: 12px;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: thin;
        scroll-behavior: smooth;
    }

    .account-nav::-webkit-scrollbar {
        height: 3px;
    }

    .account-nav::-webkit-scrollbar-track {
        background: #f1f5f9;
        border-radius: 4px;
    }

    .account-nav::-webkit-scrollbar-thumb {
        background: var(--color-primary);
        border-radius: 4px;
    }

    .account-nav .nav-item {
        white-space: nowrap;
        flex-shrink: 0;
        padding: 10px 16px;
        font-size: 14px;
        box-shadow: none;
        border-radius: 8px;
        min-width: 120px;
    }

    .account-nav .nav-item:active {
        transform: scale(0.96);
    }

    .account-nav .nav-item svg {
        width: 20px;
        height: 20px;
        flex-shrink: 0;
    }

    .account-nav .nav-item span {
        font-size: 14px;
    }

    .account-nav .nav-item.active {
        padding-left: 16px;
    }

    .account-nav .nav-item.active::before {
        display: none;
    }

    .account-page {
        margin-top: var(--spacing-md);
    }

    .account-page .account-title {
        font-size: var(--font-size-xl);
        margin-block: 0 var(--spacing-md);
    }

    .account-page .profile-form {
        padding: var(--spacing-md);
        max-width: 100%;
        border-radius: 8px;
    }

    .account-page .profile-form .form-row {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }

    .account-page .profile-form .btn {
        width: 100%;
        justify-content: center;
        padding: 12px 32px;
    }

    .account-page .profile-form input {
        padding: 12px 14px;
        font-size: 16px;
    }

    .account-page .orders-list {
        gap: var(--spacing-sm);
    }

    .account-page .orders-list .order-item {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
        padding: var(--spacing-md);
        border-radius: 8px;
    }

    .account-page .orders-list .order-item .order-info {
        width: 100%;
    }

    .account-page .orders-list .order-item .order-info .order-number {
        font-size: 15px;
    }

    .account-page .orders-list .order-item .order-info .order-date {
        font-size: var(--font-size-xs);
    }

    .account-page .orders-list .order-item .order-status {
        align-self: flex-start;
        font-size: var(--font-size-xs);
        padding: 4px 10px;
    }
}

@media (min-width: 768px) and (max-width: 1024px) {
    .account-layout {
        gap: var(--spacing-lg);
        grid-template-columns: 200px 1fr;
    }

    .account-sidebar {
        flex: 0 0 200px;
    }

    .account-nav .nav-item {
        font-size: 14px;
        padding: 10px 14px;
    }

    .account-nav .nav-item svg {
        width: 20px;
        height: 20px;
    }

    .account-page .profile-form {
        padding: var(--spacing-md);
    }

    .account-page .profile-form .form-row {
        gap: var(--spacing-sm);
    }
}

@media (max-width: 400px) {
    .account-sidebar {
        min-width: 130px;
        padding: 0 2px;
    }

    .account-nav {
        padding: 4px 4px;
        gap: 4px;
    }

    .account-nav .nav-item {
        padding: 8px 12px;
        font-size: 12px;
        min-width: 100px;
    }

    .account-nav .nav-item svg {
        width: 16px;
        height: 16px;
    }

    .account-page .profile-form {
        padding: var(--spacing-sm);
    }

    .account-page .profile-form input {
        padding: 10px 12px;
        font-size: 14px;
    }
}

@media (max-width: 767px) and (orientation: landscape) {
    .account-sidebar {
        min-width: 200px;
    }

    .account-nav .nav-item {
        padding: 8px 20px;
        min-width: 140px;
    }
}