:root {
    --primary-color: #0066cc;
    --primary-dark: #0052a3;
    --secondary-color: #00cc66;
    --success-color: #00cc66;
    --info-color: #0066cc;
    --warning-color: #ff9800;
    --error-color: #ff4444;
    --text-primary: #1a1a1a;
    --text-secondary: #666666;
    --bg-light: #f8f9fa;
    --bg-white: #ffffff;
    --border-color: #e0e0e0;
    --shadow: 0 2px 10px rgba(0,0,0,0.1);
    --shadow-hover: 0 4px 20px rgba(0,0,0,0.15);
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: var(--text-primary);
    line-height: 1.6;
    background-color: var(--bg-white);
}

.container {
    max-width: 1800px;
    margin: 0 auto;
    padding: 0 20px;
}

.breadcrumb {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    padding: 1rem 0;
    font-size: 0.9rem;
    color: white;
}

.breadcrumb a {
    color: white;
    text-decoration: none;
}

.breadcrumb a:hover {
    text-decoration: underline;
}

.header {
    background: var(--bg-white);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
    background-color: #F5F5F5;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;    
}

.logo img {
    height: 50px;
    width: auto;
}

.main-nav ul {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.main-nav > ul > li {
    position: relative;
}

.main-nav a {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    transition: var(--transition);
    display: block;
    padding: 0.5rem 0;
}

.main-nav a:hover,
.main-nav a.active {
    color: var(--primary-color);
}

.main-nav > ul > li > a {
    position: relative;
}

.main-nav > ul > li > a.active::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--primary-color);
}

.has-submenu {
    position: relative;
}

.has-submenu > a::after {
    content: '▼';
    font-size: 0.7rem;
    margin-left: 0.5rem;
    transition: var(--transition);
}

.has-submenu:hover > a::after {
    transform: rotate(180deg);
}

.submenu {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--bg-white);
    min-width: 200px;
    box-shadow: var(--shadow-hover);
    border-radius: 5px;
    padding: 0.5rem 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition);
    z-index: 100;
    display: flex;
    flex-direction: column;
    gap: 0px !important;
}

.has-submenu:hover .submenu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.submenu li {
    list-style: none;
    display: block;
}

.submenu a {
    padding: 0.75rem 1.5rem;
    color: var(--text-primary);
    white-space: nowrap;
    display: block;
}

.submenu a:hover {
    background: var(--bg-light);
    color: var(--primary-color);
}

.header-actions {
    display: flex;
    gap: 1rem;
}

.search-btn,
.cart-btn {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-primary);
    position: relative;
    padding: 0.5rem;
    transition: var(--transition);
}

.search-btn:hover,
.cart-btn:hover {
    color: var(--primary-color);
}

.cart-count {
    position: absolute;
    top: 0;
    right: 0;
    background: var(--secondary-color);
    color: white;
    border-radius: 50%;
    width: 18px;
    height: 18px;
    font-size: 11px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    border-radius: 10px;
    border: none;
    cursor: pointer;
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition);
    text-decoration: none;
}

.btn-primary {
    background: var(--secondary-color);
    color: white;
}

.btn-primary:hover {
    background: #00b359;
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.orders-section {
    padding: 2rem 0 4rem;
}

.orders-layout {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 2rem;
    align-items: start;
}

.account-sidebar {
    position: sticky;
    top: 100px;
}

.account-info-card {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow-hover);
}

.account-avatar {
    width: 80px;
    height: 80px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
}

.account-info-card h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
}

.account-info-card p {
    font-size: 0.9rem;
    opacity: 0.9;
}

.account-nav {
    background: var(--bg-white);
    border-radius: 10px;
    padding: 0.5rem;
    box-shadow: var(--shadow);
}

.account-nav-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.875rem 1rem;
    border-radius: 8px;
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    transition: var(--transition);
    margin-bottom: 0.25rem;
}

.account-nav-item:hover {
    background: var(--bg-light);
    color: var(--primary-color);
}

.account-nav-item.active {
    background: var(--primary-color);
    color: white;
}

.account-nav-item svg {
    flex-shrink: 0;
}

.nav-divider {
    height: 1px;
    background: var(--border-color);
    margin: 0.5rem 0;
}

.account-nav-item.logout {
    color: var(--error-color);
}

.account-nav-item.logout:hover {
    background: rgba(255, 68, 68, 0.1);
}

.orders-main {
    background: var(--bg-white);
    border-radius: 15px;
    box-shadow: var(--shadow);
    overflow: hidden;
}

.orders-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    padding: 2rem;
}

.header-content-top {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.header-icon {
    background: rgba(255, 255, 255, 0.2);
    padding: 1rem;
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.orders-header h1 {
    font-size: 2rem;
    margin-bottom: 0.25rem;
}

.orders-header p {
    opacity: 0.9;
}

.orders-filter {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.filter-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    background: rgba(255, 255, 255, 0.15);
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: white;
    border-radius: 10px;
    cursor: pointer;
    font-weight: 500;
    transition: var(--transition);
}

.filter-btn:hover {
    background: rgba(255, 255, 255, 0.25);
    border-color: rgba(255, 255, 255, 0.5);
}

.filter-btn.active {
    background: white;
    color: var(--primary-color);
    border-color: white;
}

.filter-count {
    background: rgba(255, 255, 255, 0.2);
    padding: 0.125rem 0.5rem;
    border-radius: 12px;
    font-size: 0.85rem;
    font-weight: 600;
}

.filter-btn.active .filter-count {
    background: var(--primary-color);
    color: white;
}

.orders-search {
    padding: 1.5rem 2rem;
    border-bottom: 1px solid var(--border-color);
}

.search-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.search-wrapper svg {
    position: absolute;
    left: 1rem;
    color: var(--text-secondary);
    pointer-events: none;
}

.search-wrapper input {
    width: 100%;
    padding: 0.875rem 1rem 0.875rem 3rem;
    border: 2px solid var(--border-color);
    border-radius: 10px;
    font-size: 1rem;
    transition: var(--transition);
}

.search-wrapper input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(0, 102, 204, 0.1);
}

.orders-list {
    padding: 1.5rem 2rem;
}

.order-card {
    border: 2px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 1.25rem;
    transition: var(--transition);
    cursor: pointer;
}

.order-card:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow);
    transform: translateY(-2px);
}

.order-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.order-number {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.order-number-icon {
    width: 40px;
    height: 40px;
    background: var(--bg-light);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
}

.order-number-info strong {
    display: block;
    font-size: 1.1rem;
    color: var(--text-primary);
}

.order-number-info span {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.order-status {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.85rem;
}

.order-status.status-processing,
.order-status.status-pending {
    background: rgba(255, 165, 0, 0.15);
    color: #ff9800;
}

.order-status.status-shipped,
.order-status.status-not_shipped {
    background: rgba(0, 102, 204, 0.15);
    color: #0066cc;
}

.order-status.status-delivered {
    background: rgba(0, 204, 102, 0.15);
    color: #00cc66;
}

.order-status.status-cancelled {
    background: rgba(255, 68, 68, 0.15);
    color: #ff4444;
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: currentColor;
}

.order-card-body {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 1.5rem;
    align-items: center;
}

.order-items {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.order-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
    background: var(--bg-light);
    border-radius: 8px;
}

.order-item-image {
    width: 50px;
    height: 50px;
    object-fit: cover;
    border-radius: 6px;
}

.order-item-info strong {
    display: block;
    font-size: 0.9rem;
    color: var(--text-primary);
}

.order-item-info span {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.order-total {
    text-align: right;
}

.order-total-label {
    display: block;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 0.25rem;
}

.order-total-amount {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.order-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

.order-actions {
    display: flex;
    gap: 0.75rem;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    font-weight: 600;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

.btn-outline:hover {
    background: var(--primary-color);
    color: white;
}

.empty-state {
    text-align: center;
    padding: 4rem 2rem;
}

.empty-state img {
    width: 200px;
    height: 200px;
    margin-bottom: 2rem;
    opacity: 0.7;
}

.empty-state h3 {
    font-size: 1.5rem;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
}

.empty-state p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.loading-spinner {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 4rem 2rem;
}

.spinner {
    width: 60px;
    height: 60px;
    border: 5px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 1.5rem;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.loading-spinner p {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    padding: 1rem;
    overflow-y: auto;
}

.modal-overlay.active {
    display: flex;
}

.modal-content {
    background: var(--bg-white);
    border-radius: 15px;
    max-width: 900px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 2rem;
    border-bottom: 2px solid var(--border-color);
}

.modal-header h2 {
    font-size: 1.75rem;
    color: var(--text-primary);
}

.modal-close {
    background: var(--bg-light);
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.modal-close:hover {
    background: var(--error-color);
    color: white;
}

.modal-body {
    padding: 2rem;
}

.order-detail-section {
    margin-bottom: 2rem;
}

.order-detail-section:last-child {
    margin-bottom: 0;
}

.order-detail-section h3 {
    font-size: 1.3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.detail-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    background: var(--bg-light);
    padding: 1.5rem;
    border-radius: 10px;
}

.detail-item strong {
    display: block;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 0.25rem;
}

.detail-item span {
    display: block;
    font-size: 1rem;
    color: var(--text-primary);
}

.detail-item .order-status {
    display: inline-flex;
}

.address-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.address-box {
    background: var(--bg-light);
    padding: 1.5rem;
    border-radius: 10px;
    border: 2px solid var(--border-color);
}

.address-box h4 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.address-box p {
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.address-box p:last-child {
    margin-bottom: 0;
}

.payment-info {
    background: var(--bg-light);
    padding: 1.5rem;
    border-radius: 10px;
    border: 2px solid var(--border-color);
}

.payment-info-row {
    display: flex;
    justify-content: space-between;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border-color);
}

.payment-info-row:last-child {
    border-bottom: none;
}

.payment-info-row strong {
    color: var(--text-secondary);
    font-weight: 500;
}

.payment-info-row span {
    color: var(--text-primary);
    font-weight: 600;
}

.payment-status {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.375rem 0.875rem;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.85rem;
}

.payment-status.paid {
    background: rgba(0, 204, 102, 0.15);
    color: #00cc66;
}

.payment-status.pending {
    background: rgba(255, 165, 0, 0.15);
    color: #ff9800;
}

.order-timeline {
    position: relative;
    padding-left: 2rem;
}

.timeline-item {
    position: relative;
    padding-bottom: 1.5rem;
}

.timeline-item:last-child {
    padding-bottom: 0;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -2rem;
    top: 0;
    width: 2px;
    height: 100%;
    background: var(--border-color);
}

.timeline-item.completed::before {
    background: var(--success-color);
}

.timeline-dot {
    position: absolute;
    left: -2.5rem;
    top: 0;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--bg-white);
    border: 3px solid var(--border-color);
}

.timeline-item.completed .timeline-dot {
    border-color: var(--success-color);
    background: var(--success-color);
}

.timeline-item.active .timeline-dot {
    border-color: var(--primary-color);
    background: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(0, 102, 204, 0.2);
}

.timeline-content strong {
    display: block;
    font-size: 1rem;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.timeline-content span {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.timeline-content p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-top: 0.5rem;
}

.order-items-detail {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.order-item-detail {
    display: flex;
    gap: 1rem;
    padding: 1rem;
    background: var(--bg-light);
    border-radius: 10px;
}

.order-item-detail-image {
    width: 100px;
    height: 100px;
    object-fit: cover;
    border-radius: 8px;
    flex-shrink: 0;
}

.order-item-detail-info {
    flex: 1;
}

.order-item-detail-info h4 {
    font-size: 1.1rem;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.order-item-detail-info p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 0.25rem;
}

.order-item-detail-price {
    text-align: right;
}

.order-item-detail-price .price {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-color);
}

.order-summary {
    background: var(--bg-light);
    padding: 1.5rem;
    border-radius: 10px;
    margin-top: 1.5rem;
}

.summary-row {
    display: flex;
    justify-content: space-between;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border-color);
}

.summary-row:last-child {
    border-bottom: none;
    padding-top: 1rem;
    margin-top: 0.5rem;
    border-top: 2px solid var(--border-color);
}

.summary-row strong {
    font-size: 1rem;
    color: var(--text-primary);
}

.summary-row.total strong {
    font-size: 1.3rem;
    color: var(--primary-color);
}

.summary-row span {
    font-size: 1rem;
    color: var(--text-primary);
}

.summary-row.total span {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--primary-color);
}

.features-strip {
    background: var(--bg-white);
    padding: 2rem 0;
    margin-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.features-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.feature-item img {
    width: 48px;
    height: 48px;
}

.feature-item strong {
    display: block;
    margin-bottom: 0.25rem;
    color: var(--text-primary);
}

.feature-item span {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.footer {
    background: var(--text-primary);
    color: white;
    padding: 3rem 0 1rem;
    margin-top: 3rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-col h4 {
    margin-bottom: 1rem;
    color: var(--secondary-color);
}

.footer-col ul {
    list-style: none;
}

.footer-col a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: var(--transition);
    display: block;
    padding: 0.25rem 0;
}

.footer-col a:hover {
    color: white;
    padding-left: 5px;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
}

@media (max-width: 1024px) {
    .orders-layout {
        grid-template-columns: 1fr;
    }

    .account-sidebar {
        position: static;
    }

    .main-nav {
        display: none;
    }
}

@media (max-width: 768px) {
    .orders-header h1 {
        font-size: 1.5rem;
    }

    .orders-filter {
        flex-direction: column;
    }

    .filter-btn {
        width: 100%;
        justify-content: center;
    }

    .order-card-header,
    .order-card-body {
        flex-direction: column;
        align-items: flex-start;
    }

    .order-total {
        text-align: left;
    }

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

    .order-item-detail {
        flex-direction: column;
    }

    .order-item-detail-price {
        text-align: left;
    }

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

@media (max-width: 480px) {
    .orders-header {
        padding: 1.5rem;
    }

    .orders-list,
    .orders-search {
        padding: 1rem;
    }

    .modal-header,
    .modal-body {
        padding: 1.5rem;
    }

    .features-list {
        grid-template-columns: 1fr;
    }

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