:root {
    --primary: #c41e3a;
    --primary-dark: #8b1538;
    --secondary: #2d5016;
    --secondary-light: #4a7c23;
    --accent: #d4af37;
    --success: #28a745;
    --warning: #ffc107;
    --danger: #dc3545;
    --info: #17a2b8;
    --light: #f8f9fa;
    --dark: #343a40;
    --white: #ffffff;
    --bg-cream: #faf7f2;
    --border: #dee2e6;
    --text-muted: #6c757d;
}

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

body {
    font-family: 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg-cream);
    color: var(--dark);
    line-height: 1.6;
    min-height: 100vh;
}

.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    width: 260px;
    height: 100vh;
    background: linear-gradient(180deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--white);
    padding: 20px 0;
    overflow-y: auto;
    z-index: 1000;
}

.sidebar-logo {
    padding: 15px 25px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    margin-bottom: 20px;
}

.sidebar-logo h1 {
    font-size: 1.4rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 10px;
}

.sidebar-logo span {
    font-size: 2rem;
}

.sidebar-nav {
    list-style: none;
}

.sidebar-nav li {
    margin: 2px 10px;
}

.sidebar-nav a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 20px;
    color: rgba(255,255,255,0.85);
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.3s ease;
    font-size: 0.95rem;
}

.sidebar-nav a:hover,
.sidebar-nav a.active {
    background: rgba(255,255,255,0.15);
    color: var(--white);
}

.sidebar-nav a i {
    width: 22px;
    text-align: center;
    font-size: 1.1rem;
}

.sidebar-divider {
    height: 1px;
    background: rgba(255,255,255,0.1);
    margin: 15px 20px;
}

.main-content {
    margin-left: 260px;
    min-height: 100vh;
}

.top-bar {
    background: var(--white);
    padding: 15px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    position: sticky;
    top: 0;
    z-index: 100;
}

.top-bar h2 {
    font-size: 1.5rem;
    color: var(--dark);
    font-weight: 600;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 15px;
}

.user-info .user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--primary);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
}

.page-content {
    padding: 30px;
}

.card {
    background: var(--white);
    border-radius: 12px;
    box-shadow: 0 2px 15px rgba(0,0,0,0.06);
    margin-bottom: 25px;
    overflow: hidden;
}

.card-header {
    padding: 18px 25px;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--white);
}

.card-header h3 {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--dark);
}

.card-body {
    padding: 25px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border: none;
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
}

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

.btn-secondary:hover {
    background: var(--secondary-light);
}

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

.btn-success:hover {
    background: #218838;
}

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

.btn-danger:hover {
    background: #c82333;
}

.btn-warning {
    background: var(--warning);
    color: var(--dark);
}

.btn-warning:hover {
    background: #e0a800;
}

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

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

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

.btn-sm {
    padding: 6px 12px;
    font-size: 0.85rem;
}

.btn-lg {
    padding: 14px 28px;
    font-size: 1.1rem;
}

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

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

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: 500;
    color: var(--dark);
}

.form-control {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid var(--border);
    border-radius: 8px;
    font-size: 0.95rem;
    transition: border-color 0.3s ease;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
}

.form-control::placeholder {
    color: var(--text-muted);
}

select.form-control {
    cursor: pointer;
}

textarea.form-control {
    min-height: 100px;
    resize: vertical;
}

.table-responsive {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
}

table thead {
    background: var(--light);
}

table th {
    padding: 14px 18px;
    text-align: left;
    font-weight: 600;
    color: var(--dark);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

table td {
    padding: 14px 18px;
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
}

table tbody tr:hover {
    background: rgba(196, 30, 58, 0.03);
}

.badge {
    display: inline-block;
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.badge-success {
    background: rgba(40, 167, 69, 0.15);
    color: var(--success);
}

.badge-warning {
    background: rgba(255, 193, 7, 0.2);
    color: #856404;
}

.badge-danger {
    background: rgba(220, 53, 69, 0.15);
    color: var(--danger);
}

.badge-info {
    background: rgba(23, 162, 184, 0.15);
    color: var(--info);
}

.badge-primary {
    background: rgba(196, 30, 58, 0.15);
    color: var(--primary);
}

.badge-secondary {
    background: rgba(108, 117, 125, 0.15);
    color: var(--text-muted);
}

.alert {
    padding: 15px 20px;
    border-radius: 8px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.alert-success {
    background: rgba(40, 167, 69, 0.1);
    border-left: 4px solid var(--success);
    color: #155724;
}

.alert-danger {
    background: rgba(220, 53, 69, 0.1);
    border-left: 4px solid var(--danger);
    color: #721c24;
}

.alert-warning {
    background: rgba(255, 193, 7, 0.1);
    border-left: 4px solid var(--warning);
    color: #856404;
}

.alert-info {
    background: rgba(23, 162, 184, 0.1);
    border-left: 4px solid var(--info);
    color: #0c5460;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 25px;
    margin-bottom: 30px;
}

.stat-card {
    background: var(--white);
    border-radius: 12px;
    padding: 25px;
    box-shadow: 0 2px 15px rgba(0,0,0,0.06);
    display: flex;
    align-items: center;
    gap: 20px;
}

.stat-icon {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
}

.stat-icon.primary {
    background: rgba(196, 30, 58, 0.1);
    color: var(--primary);
}

.stat-icon.success {
    background: rgba(40, 167, 69, 0.1);
    color: var(--success);
}

.stat-icon.warning {
    background: rgba(255, 193, 7, 0.15);
    color: #d39e00;
}

.stat-icon.info {
    background: rgba(23, 162, 184, 0.1);
    color: var(--info);
}

.stat-info h4 {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--dark);
    line-height: 1;
}

.stat-info p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-top: 5px;
}

.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 25px;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}

@media (max-width: 1200px) {
    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        transition: transform 0.3s ease;
    }
    
    .sidebar.active {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .grid-2, .grid-3, .grid-4 {
        grid-template-columns: 1fr;
    }
}

.kitchen-card {
    background: var(--white);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 15px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
    border-left: 5px solid var(--warning);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.kitchen-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(0,0,0,0.12);
}

.kitchen-card.preparing {
    border-left-color: var(--info);
}

.kitchen-card.ready {
    border-left-color: var(--success);
    background: rgba(40, 167, 69, 0.03);
}

.kitchen-card .order-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
}

.kitchen-card .order-number {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--primary);
}

.kitchen-card .order-time {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.kitchen-card .order-items {
    list-style: none;
}

.kitchen-card .order-item {
    padding: 8px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px dashed var(--border);
}

.kitchen-card .order-item:last-child {
    border-bottom: none;
}

.kitchen-card .item-qty {
    background: var(--primary);
    color: var(--white);
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.85rem;
}

.table-map {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 15px;
    padding: 20px;
}

.table-item {
    background: var(--white);
    border-radius: 10px;
    padding: 20px;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.06);
    cursor: pointer;
    transition: all 0.3s ease;
}

.table-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.table-item.available {
    border: 2px solid var(--success);
}

.table-item.occupied {
    border: 2px solid var(--danger);
    background: rgba(220, 53, 69, 0.03);
}

.table-item.reserved {
    border: 2px solid var(--warning);
    background: rgba(255, 193, 7, 0.05);
}

.table-item .table-number {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--dark);
}

.table-item .table-status {
    font-size: 0.85rem;
    margin-top: 5px;
}

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    z-index: 2000;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-dialog {
    background: var(--white);
    border-radius: 12px;
    width: 100%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    animation: modalSlide 0.3s ease;
}

@keyframes modalSlide {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-header {
    padding: 20px 25px;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    font-size: 1.2rem;
    font-weight: 600;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-muted);
}

.modal-body {
    padding: 25px;
}

.modal-footer {
    padding: 15px 25px;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

.calendar {
    background: var(--white);
    border-radius: 12px;
    overflow: hidden;
}

.calendar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    background: var(--primary);
    color: var(--white);
}

.calendar-header h3 {
    font-size: 1.3rem;
}

.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
}

.calendar-day-header {
    padding: 15px;
    text-align: center;
    font-weight: 600;
    background: var(--light);
    border-bottom: 1px solid var(--border);
}

.calendar-day {
    min-height: 100px;
    padding: 10px;
    border-right: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.calendar-day:nth-child(7n) {
    border-right: none;
}

.calendar-day.other-month {
    background: var(--light);
    opacity: 0.5;
}

.calendar-day .day-number {
    font-weight: 600;
    margin-bottom: 8px;
}

.calendar-day.today .day-number {
    background: var(--primary);
    color: var(--white);
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.event-item {
    background: var(--info);
    color: var(--white);
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.75rem;
    margin-bottom: 4px;
    cursor: pointer;
}

.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
}

.login-card {
    background: var(--white);
    border-radius: 16px;
    padding: 50px;
    width: 100%;
    max-width: 450px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}

.login-card .logo {
    text-align: center;
    margin-bottom: 35px;
}

.login-card .logo span {
    font-size: 3rem;
    color: var(--primary);
}

.login-card .logo h2 {
    font-size: 1.5rem;
    color: var(--dark);
    margin-top: 10px;
}

.login-card .logo p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.search-box {
    position: relative;
    margin-bottom: 20px;
}

.search-box input {
    width: 100%;
    padding: 12px 15px 12px 45px;
    border: 2px solid var(--border);
    border-radius: 8px;
    font-size: 0.95rem;
}

.search-box i {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
}

.filter-bar {
    display: flex;
    gap: 15px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.filter-bar select,
.filter-bar input {
    padding: 10px 15px;
    border: 2px solid var(--border);
    border-radius: 8px;
    font-size: 0.9rem;
}

.action-buttons {
    display: flex;
    gap: 8px;
}

.action-btn {
    width: 35px;
    height: 35px;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.action-btn.edit {
    background: rgba(23, 162, 184, 0.1);
    color: var(--info);
}

.action-btn.delete {
    background: rgba(220, 53, 69, 0.1);
    color: var(--danger);
}

.action-btn:hover {
    transform: scale(1.1);
}

.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-muted);
}

.empty-state i {
    font-size: 4rem;
    margin-bottom: 20px;
    opacity: 0.3;
}

.empty-state h4 {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: var(--dark);
}

.text-center {
    text-align: center;
}

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

.text-success {
    color: var(--success);
}

.text-danger {
    color: var(--danger);
}

.text-warning {
    color: #856404;
}

.text-muted {
    color: var(--text-muted);
}

.mt-1 { margin-top: 10px; }
.mt-2 { margin-top: 20px; }
.mt-3 { margin-top: 30px; }
.mb-1 { margin-bottom: 10px; }
.mb-2 { margin-bottom: 20px; }
.mb-3 { margin-bottom: 30px; }

.d-flex {
    display: flex;
}

.justify-between {
    justify-content: space-between;
}

.align-center {
    align-items: center;
}

.gap-1 { gap: 10px; }
.gap-2 { gap: 20px; }

.order-menu {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 15px;
    margin-bottom: 25px;
}

.menu-item {
    background: var(--white);
    border-radius: 10px;
    padding: 20px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.menu-item:hover {
    border-color: var(--primary);
    transform: translateY(-3px);
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.menu-item.selected {
    border-color: var(--primary);
    background: rgba(196, 30, 58, 0.05);
}

.menu-item .item-name {
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 5px;
}

.menu-item .item-price {
    color: var(--primary);
    font-weight: 600;
}

.inventory-low {
    background: rgba(220, 53, 69, 0.05);
    border-left: 4px solid var(--danger);
}

.notification-dot {
    width: 8px;
    height: 8px;
    background: var(--danger);
    border-radius: 50%;
    position: absolute;
    top: -2px;
    right: -2px;
}

.tab-nav {
    display: flex;
    border-bottom: 2px solid var(--border);
    margin-bottom: 25px;
}

.tab-nav button {
    padding: 12px 25px;
    background: none;
    border: none;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-muted);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    transition: all 0.3s ease;
}

.tab-nav button.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

.pagination {
    display: flex;
    justify-content: center;
    gap: 5px;
    margin-top: 25px;
}

.pagination button {
    padding: 8px 14px;
    border: 1px solid var(--border);
    background: var(--white);
    border-radius: 6px;
    cursor: pointer;
}

.pagination button.active {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
}

.toast {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: var(--dark);
    color: var(--white);
    padding: 15px 25px;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.2);
    z-index: 3000;
    animation: toastSlide 0.3s ease;
}

@keyframes toastSlide {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.toast.success {
    background: var(--success);
}

.toast.error {
    background: var(--danger);
}