/* ============================================================
   CATERING MANAGEMENT SYSTEM - Design System
   Modern Professional Theme
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
    --primary: #059669;
    --primary-light: #34d399;
    --primary-dark: #047857;
    --secondary: #0d9488;
    --success: #22c55e;
    --warning: #eab308;
    --danger: #dc2626;
    --info: #0891b2;

    --bg-dark: #111827;
    --bg-card: #1f2937;
    --bg-card-hover: #374151;
    --bg-sidebar: #111827;
    --bg-input: #1f2937;

    --text-primary: #f9fafb;
    --text-secondary: #9ca3af;
    --text-muted: #6b7280;

    --border-color: #374151;
    --border-light: #4b5563;


    --glass-bg: rgba(30, 41, 59, 0.8);
    --glass-border: rgba(148, 163, 184, 0.1);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);

    --sidebar-width: 280px;
    --sidebar-collapsed: 70px;
    --navbar-height: 64px;
    --radius: 12px;
    --radius-sm: 8px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    line-height: 1.6;
}

/* Scrollbar */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-dark); }
::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--border-light); }

/* ============================================================
   SIDEBAR
   ============================================================ */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background: var(--bg-sidebar);
    border-right: 1px solid var(--border-color);
    z-index: 1000;
    display: flex;
    flex-direction: column;
    transition: var(--transition);
    overflow: hidden;
}

.sidebar-brand {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 12px;
    min-height: var(--navbar-height);
}

.sidebar-brand .brand-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    flex-shrink: 0;
}

.sidebar-brand .brand-text {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
    white-space: nowrap;
}

.sidebar-brand .brand-sub {
    font-size: 11px;
    color: var(--text-muted);
    display: block;
}

.sidebar-nav {
    flex: 1;
    overflow-y: auto;
    padding: 12px 0;
}

.nav-section {
    padding: 8px 24px 4px;
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--text-muted);
    margin-top: 8px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 24px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition);
    border-left: 3px solid transparent;
    margin: 1px 0;
}

.nav-item:hover {
    background: var(--bg-card);
    color: var(--text-primary);
    border-left-color: var(--primary-light);
}

.nav-item.active {
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary-light);
    border-left-color: var(--primary);
    font-weight: 600;
}

.nav-item .nav-icon {
    width: 20px;
    text-align: center;
    font-size: 16px;
    flex-shrink: 0;
}

.nav-item .nav-badge {
    margin-left: auto;
    background: var(--danger);
    color: #fff;
    font-size: 10px;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 50px;
}

/* ============================================================
   NAVBAR
   ============================================================ */
.navbar {
    position: fixed;
    top: 0;
    left: var(--sidebar-width);
    right: 0;
    height: var(--navbar-height);
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    z-index: 999;
    transition: var(--transition);
}

.navbar-left {
    display: flex;
    align-items: center;
    gap: 16px;
}

.navbar-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 20px;
    cursor: pointer;
    padding: 8px;
}

.navbar-breadcrumb {
    font-size: 14px;
    color: var(--text-secondary);
}

.navbar-breadcrumb a {
    color: var(--text-muted);
    text-decoration: none;
}

.navbar-breadcrumb a:hover { color: var(--primary-light); }
.navbar-breadcrumb .separator { margin: 0 8px; color: var(--text-muted); }

.navbar-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.navbar-lang {
    display: flex;
    gap: 4px;
}

.navbar-lang a {
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
    text-decoration: none;
    color: var(--text-muted);
    transition: var(--transition);
}

.navbar-lang a:hover,
.navbar-lang a.active {
    background: var(--primary);
    color: #fff;
}

.navbar-user {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.navbar-user:hover { background: var(--bg-card); }

.navbar-user .avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 700;
    color: #fff;
}

.navbar-user .user-info .user-name {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
}

.navbar-user .user-info .user-role {
    font-size: 11px;
    color: var(--text-muted);
}

/* ============================================================
   MAIN CONTENT
   ============================================================ */
.main-content {
    margin-left: var(--sidebar-width);
    margin-top: var(--navbar-height);
    padding: 24px;
    min-height: calc(100vh - var(--navbar-height));
    transition: var(--transition);
}

.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
    flex-wrap: wrap;
    gap: 12px;
}

.page-header h1 {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
}

.page-header p {
    font-size: 14px;
    color: var(--text-secondary);
    margin-top: 4px;
}

/* ============================================================
   CARDS
   ============================================================ */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    overflow: hidden;
    transition: var(--transition);
}

.card:hover { border-color: var(--border-light); }

.card-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-header h3 {
    font-size: 16px;
    font-weight: 600;
}

.card-body { padding: 20px; }
.card-footer {
    padding: 12px 20px;
    border-top: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 8px;
}

/* Stats Cards */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 20px;
    display: flex;
    align-items: flex-start;
    gap: 16px;
    transition: var(--transition);
}

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

.stat-card .stat-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    flex-shrink: 0;
}

.stat-card .stat-icon.blue { background: rgba(59, 130, 246, 0.15); color: #3b82f6; }
.stat-card .stat-icon.green { background: rgba(16, 185, 129, 0.15); color: #10b981; }
.stat-card .stat-icon.yellow { background: rgba(245, 158, 11, 0.15); color: #f59e0b; }
.stat-card .stat-icon.red { background: rgba(239, 68, 68, 0.15); color: #ef4444; }
.stat-card .stat-icon.purple { background: rgba(99, 102, 241, 0.15); color: #6366f1; }
.stat-card .stat-icon.cyan { background: rgba(6, 182, 212, 0.15); color: #06b6d4; }

.stat-card .stat-value {
    font-size: 24px;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1.2;
}

.stat-card .stat-label {
    font-size: 13px;
    color: var(--text-secondary);
    margin-top: 4px;
}

.stat-card .stat-change {
    font-size: 12px;
    font-weight: 600;
    margin-top: 4px;
}

.stat-change.up { color: var(--success); }
.stat-change.down { color: var(--danger); }

/* ============================================================
   TABLES
   ============================================================ */
.table-wrapper {
    overflow-x: auto;
    border-radius: var(--radius);
}

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

table th {
    padding: 12px 16px;
    text-align: left;
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    background: rgba(15, 23, 42, 0.5);
    border-bottom: 1px solid var(--border-color);
    white-space: nowrap;
}

table td {
    padding: 12px 16px;
    font-size: 14px;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-color);
    vertical-align: middle;
}

table tr:hover td { background: rgba(99, 102, 241, 0.03); }
table tr:last-child td { border-bottom: none; }

/* ============================================================
   FORMS
   ============================================================ */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.form-control {
    width: 100%;
    padding: 10px 14px;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 14px;
    font-family: inherit;
    transition: var(--transition);
    outline: none;
}

.form-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

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

select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2394a3b8' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
}

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

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
}

.form-check {
    display: flex;
    align-items: center;
    gap: 8px;
}

.form-check input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--primary);
}

.form-error {
    color: var(--danger);
    font-size: 12px;
    margin-top: 4px;
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    font-size: 14px;
    font-weight: 600;
    font-family: inherit;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    white-space: nowrap;
    line-height: 1.4;
}

.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); box-shadow: 0 4px 12px rgba(99, 102, 241, 0.4); }

.btn-success { background: var(--success); color: #fff; }
.btn-success:hover { background: #059669; }

.btn-warning { background: var(--warning); color: #000; }
.btn-warning:hover { background: #d97706; }

.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: #dc2626; }

.btn-info { background: var(--info); color: #fff; }
.btn-info:hover { background: #0891b2; }

.btn-secondary { background: var(--bg-card-hover); color: var(--text-primary); border: 1px solid var(--border-color); }
.btn-secondary:hover { background: var(--border-color); }

.btn-sm { padding: 6px 14px; font-size: 12px; }
.btn-lg { padding: 14px 28px; font-size: 16px; }
.btn-icon { padding: 8px; width: 36px; height: 36px; justify-content: center; }
.btn-icon.sm { width: 30px; height: 30px; padding: 6px; }

.btn-group { display: flex; gap: 6px; flex-wrap: wrap; }

/* ============================================================
   BADGES
   ============================================================ */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    font-size: 11px;
    font-weight: 700;
    border-radius: 50px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-primary { background: rgba(99, 102, 241, 0.15); color: #818cf8; }
.badge-success { background: rgba(16, 185, 129, 0.15); color: #34d399; }
.badge-warning { background: rgba(245, 158, 11, 0.15); color: #fbbf24; }
.badge-danger { background: rgba(239, 68, 68, 0.15); color: #f87171; }
.badge-info { background: rgba(6, 182, 212, 0.15); color: #22d3ee; }
.badge-secondary { background: rgba(100, 116, 139, 0.15); color: #94a3b8; }

/* ============================================================
   ALERTS
   ============================================================ */
.alert {
    padding: 14px 20px;
    border-radius: var(--radius-sm);
    margin-bottom: 16px;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 10px;
    animation: slideDown 0.3s ease;
}

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

.alert-success { background: rgba(16, 185, 129, 0.1); border: 1px solid rgba(16, 185, 129, 0.3); color: #34d399; }
.alert-danger { background: rgba(239, 68, 68, 0.1); border: 1px solid rgba(239, 68, 68, 0.3); color: #f87171; }
.alert-warning { background: rgba(245, 158, 11, 0.1); border: 1px solid rgba(245, 158, 11, 0.3); color: #fbbf24; }
.alert-info { background: rgba(6, 182, 212, 0.1); border: 1px solid rgba(6, 182, 212, 0.3); color: #22d3ee; }

.alert .close-alert {
    margin-left: auto;
    background: none;
    border: none;
    color: inherit;
    cursor: pointer;
    font-size: 18px;
    opacity: 0.7;
}

.alert .close-alert:hover { opacity: 1; }

/* ============================================================
   PAGINATION
   ============================================================ */
.pagination {
    display: flex;
    align-items: center;
    gap: 4px;
    margin-top: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.pagination a,
.pagination span {
    padding: 8px 14px;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 500;
    text-decoration: none;
    transition: var(--transition);
}

.pagination a {
    color: var(--text-secondary);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
}

.pagination a:hover {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}

.pagination .active span {
    background: var(--primary);
    color: #fff;
    border: 1px solid var(--primary);
}

.pagination .disabled span {
    color: var(--text-muted);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    cursor: not-allowed;
}

/* ============================================================
   MODAL
   ============================================================ */
.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    z-index: 2000;
    align-items: center;
    justify-content: center;
}

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

.modal {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    width: 100%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    animation: modalIn 0.3s ease;
}

@keyframes modalIn {
    from { opacity: 0; transform: scale(0.95) translateY(10px); }
    to { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-header h3 { font-size: 16px; font-weight: 600; }
.modal-body { padding: 20px; }
.modal-footer {
    padding: 12px 20px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 8px;
}

/* ============================================================
   UTILITIES
   ============================================================ */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-primary { color: var(--primary-light) !important; }
.text-success { color: var(--success) !important; }
.text-warning { color: var(--warning) !important; }
.text-danger { color: var(--danger) !important; }
.text-muted { color: var(--text-muted) !important; }
.text-sm { font-size: 12px !important; }
.text-lg { font-size: 18px !important; }
.text-xl { font-size: 24px !important; }
.font-bold { font-weight: 700 !important; }
.mt-0 { margin-top: 0 !important; }
.mt-2 { margin-top: 8px !important; }
.mt-4 { margin-top: 16px !important; }
.mb-0 { margin-bottom: 0 !important; }
.mb-2 { margin-bottom: 8px !important; }
.mb-4 { margin-bottom: 16px !important; }
.mr-2 { margin-right: 8px !important; }
.p-0 { padding: 0 !important; }
.p-4 { padding: 16px !important; }
.d-flex { display: flex; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: 8px; }
.gap-4 { gap: 16px; }
.w-full { width: 100%; }
.hidden { display: none !important; }

.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }

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

.empty-state .empty-icon {
    font-size: 48px;
    margin-bottom: 16px;
    opacity: 0.5;
}

.empty-state h3 {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

/* Rating Stars */
.stars { color: var(--warning); font-size: 16px; }
.stars .empty { color: var(--text-muted); }

/* Filter Bar */
.filter-bar {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.filter-bar .form-control {
    max-width: 200px;
}

.filter-bar .search-input {
    max-width: 300px;
    position: relative;
}

/* ============================================================
   LOGIN PAGE
   ============================================================ */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0f172a 0%, #1e1b4b 50%, #0f172a 100%);
    padding: 20px;
}

.login-card {
    width: 100%;
    max-width: 420px;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 40px;
    box-shadow: var(--glass-shadow);
}

.login-card .login-brand {
    text-align: center;
    margin-bottom: 32px;
}

.login-card .login-brand .brand-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 16px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    margin-bottom: 12px;
}

.login-card .login-brand h1 {
    font-size: 22px;
    font-weight: 800;
}

.login-card .login-brand p {
    color: var(--text-muted);
    font-size: 14px;
    margin-top: 4px;
}

/* ============================================================
   CHART CONTAINER
   ============================================================ */
.chart-container {
    position: relative;
    height: 300px;
    width: 100%;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .grid-3 { grid-template-columns: repeat(2, 1fr); }
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .navbar {
        left: 0;
    }

    .navbar-toggle { display: block; }

    .main-content {
        margin-left: 0;
    }

    .stats-grid { grid-template-columns: 1fr; }
    .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }

    .page-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .filter-bar {
        flex-direction: column;
        align-items: stretch;
    }

    .filter-bar .form-control,
    .filter-bar .search-input { max-width: 100%; }

    table { font-size: 13px; }
    table th, table td { padding: 8px 12px; }
}

/* Sidebar overlay for mobile */
.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
}

.sidebar-overlay.active { display: block; }

/* Print */
@media print {
    .sidebar, .navbar, .btn, .filter-bar, .pagination { display: none !important; }
    .main-content { margin: 0; padding: 0; }
    body { background: #fff; color: #000; }
    .card { border: 1px solid #ddd; }
    table th { background: #f3f4f6; }
}