/* ===== CSS Variables & Reset ===== */
:root {
    --bg-primary: #0f0f23;
    --bg-secondary: #1a1a2e;
    --bg-card: #16213e;
    --bg-card-hover: #1f2b4a;
    --text-primary: #ffffff;
    --text-secondary: #a0aec0;
    --text-muted: #718096;
    --accent-blue: #4f46e5;
    --accent-purple: #7c3aed;
    --accent-green: #10b981;
    --accent-orange: #f59e0b;
    --accent-red: #ef4444;
    --accent-cyan: #06b6d4;
    --gradient-blue: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-purple: linear-gradient(135deg, #7c3aed 0%, #a855f7 100%);
    --gradient-green: linear-gradient(135deg, #10b981 0%, #34d399 100%);
    --gradient-orange: linear-gradient(135deg, #f59e0b 0%, #fbbf24 100%);
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.5);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Inter', -apple-system, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
}

/* ===== Layout ===== */
.app-container {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 240px;
    background: var(--bg-secondary);
    padding: 1.5rem 1rem;
    display: flex;
    flex-direction: column;
    border-right: 1px solid rgba(255, 255, 255, 0.05);
    position: fixed;
    height: 100vh;
    z-index: 100;
    transition: var(--transition);
}

.sidebar.collapsed {
    transform: translateX(-100%);
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem;
    margin-bottom: 2rem;
    font-size: 1.25rem;
    font-weight: 700;
}

.logo-icon {
    font-size: 1.5rem;
}

.nav-menu {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
}

.nav-item:hover,
.nav-item.active {
    background: rgba(79, 70, 229, 0.2);
    color: var(--text-primary);
}

.sidebar-footer {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem;
    font-size: 0.875rem;
    color: var(--text-muted);
}

.status-dot {
    width: 8px;
    height: 8px;
    background: var(--accent-green);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }
}

.main-content {
    flex: 1;
    margin-left: 240px;
    transition: var(--transition);
}

.sidebar.collapsed+.main-content {
    margin-left: 0;
}

/* ===== Header ===== */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    padding: 1rem 1.5rem;
    background: var(--bg-secondary);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    position: sticky;
    top: 0;
    z-index: 50;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.header-left h1 {
    font-size: 1.5rem;
    font-weight: 600;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.date-filter {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.date-filter label {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.date-filter input[type="date"] {
    padding: 0.5rem 0.75rem;
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 0.875rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

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

.btn-primary:hover {
    background: #4338ca;
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--bg-card);
    color: var(--text-primary);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

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

/* ===== Date Range Picker ===== */
.date-range-picker {
    position: relative;
}

.btn-date {
    background: var(--bg-card);
    color: var(--text-primary);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 0.5rem 1rem;
}

.btn-date:hover {
    background: var(--bg-card-hover);
}

.date-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 0.5rem;
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    padding: 0.75rem;
    min-width: 220px;
    box-shadow: var(--shadow-lg);
    z-index: 100;
    display: none;
}

.date-dropdown.show {
    display: block;
    animation: fadeIn 0.2s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.preset-options {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.preset-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 0.6rem 0.75rem;
    text-align: left;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.875rem;
}

.preset-btn:hover {
    background: rgba(79, 70, 229, 0.15);
    color: var(--text-primary);
}

.preset-btn.active {
    background: var(--accent-blue);
    color: white;
}

.custom-range {
    margin-top: 0.75rem;
    padding-top: 0.75rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.custom-inputs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.custom-inputs>div {
    flex: 1;
}

.custom-inputs label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 0.25rem;
}

.custom-inputs input {
    width: 100%;
    padding: 0.4rem;
    background: var(--bg-primary);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 0.8rem;
}

.btn-sm {
    padding: 0.4rem 0.75rem;
    font-size: 0.8rem;
    width: 100%;
}

/* ===== Loading ===== */
.loading-overlay {
    position: fixed;
    inset: 0;
    background: rgba(15, 15, 35, 0.9);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.loading-overlay.active {
    opacity: 1;
    visibility: visible;
}

.loader {
    text-align: center;
}

.spinner {
    width: 48px;
    height: 48px;
    border: 4px solid rgba(255, 255, 255, 0.1);
    border-top-color: var(--accent-blue);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 1rem;
}

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

/* ===== Dashboard Content ===== */
.dashboard-content {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

/* ===== KPI Cards ===== */
.kpi-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1rem;
}

.kpi-section.secondary {
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
}

.kpi-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.kpi-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
}

.kpi-card.blue::before {
    background: var(--gradient-blue);
}

.kpi-card.purple::before {
    background: var(--gradient-purple);
}

.kpi-card.green::before {
    background: var(--gradient-green);
}

.kpi-card.orange::before {
    background: var(--gradient-orange);
}

.kpi-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.kpi-icon {
    font-size: 2rem;
    opacity: 0.9;
}

.kpi-content {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.kpi-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.kpi-value {
    font-size: 2rem;
    font-weight: 700;
    background: linear-gradient(135deg, #fff 0%, #a0aec0 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.kpi-sub {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.kpi-mini {
    background: var(--bg-card);
    border-radius: var(--radius-md);
    padding: 1rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition);
}

.kpi-mini:hover {
    transform: translateY(-2px);
}

.mini-icon {
    font-size: 1.5rem;
}

.mini-value {
    font-size: 1.5rem;
    font-weight: 700;
}

.mini-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.kpi-mini.success .mini-value {
    color: var(--accent-green);
}

.kpi-mini.danger .mini-value {
    color: var(--accent-red);
}

.kpi-mini.warning .mini-value {
    color: var(--accent-orange);
}

.kpi-mini.info .mini-value {
    color: var(--accent-cyan);
}

.kpi-mini.special .mini-value {
    color: var(--accent-purple);
}

/* ===== Cards ===== */
.card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.05);
    overflow: hidden;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    background: rgba(255, 255, 255, 0.02);
}

.card-header h3 {
    font-size: 1rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.card-body {
    padding: 1.5rem;
}

/* ===== Charts Section ===== */
.charts-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1rem;
}

.top-restaurant .trophy {
    font-size: 4rem;
    text-align: center;
    margin-bottom: 1rem;
    animation: bounce 2s infinite;
}

@keyframes bounce {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-10px);
    }
}

.top-restaurant h4 {
    font-size: 1.25rem;
    text-align: center;
    margin-bottom: 0.5rem;
}

.top-restaurant p {
    text-align: center;
    color: var(--text-secondary);
}

.top-restaurant .revenue {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-green);
    margin-top: 0.5rem;
}

.status-chart .chart-container {
    display: flex;
    justify-content: center;
    margin-bottom: 1rem;
}

.chart-bar {
    display: flex;
    height: 24px;
    border-radius: var(--radius-sm);
    overflow: hidden;
    width: 100%;
}

.chart-bar div {
    height: 100%;
    transition: var(--transition);
}

.legend {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    justify-content: center;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    font-size: 0.75rem;
}

.legend-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.revenue .revenue-item {
    display: flex;
    justify-content: space-between;
    padding: 0.75rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.revenue .revenue-item:last-child {
    border: none;
}

.revenue .value {
    font-weight: 600;
    color: var(--accent-green);
}

.revenue .discount {
    color: var(--accent-red);
}

/* ===== Table ===== */
.table-section .card-header input {
    padding: 0.5rem 1rem;
    background: var(--bg-primary);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 0.875rem;
    width: 200px;
}

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

.data-table th,
.data-table td {
    padding: 0.875rem 1rem;
    text-align: left;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.data-table th {
    font-size: 0.75rem;
    text-transform: uppercase;
    color: var(--text-muted);
    font-weight: 600;
    background: rgba(255, 255, 255, 0.02);
}

.data-table tr:hover {
    background: rgba(255, 255, 255, 0.02);
}

.data-table .rank {
    font-weight: 700;
    color: var(--accent-blue);
}

/* ===== Partners Grid ===== */
.partners-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1rem;
}

.partner-card {
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    padding: 1.25rem;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition);
}

.partner-card:hover {
    transform: translateY(-2px);
    border-color: var(--accent-blue);
}

.partner-card h4 {
    font-size: 1rem;
    margin-bottom: 0.5rem;
    text-transform: capitalize;
}

.partner-card .count {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--accent-blue);
}

.partner-card .label {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* ===== Orders List ===== */
.orders-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    max-height: 400px;
    overflow-y: auto;
}

.order-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition);
}

.order-item:hover {
    border-color: var(--accent-blue);
}

.order-info {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.order-id {
    font-weight: 600;
    color: var(--accent-blue);
}

.order-time {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.order-status {
    padding: 0.25rem 0.75rem;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 500;
}

.status-delivered {
    background: rgba(16, 185, 129, 0.2);
    color: var(--accent-green);
}

.status-cancelled {
    background: rgba(239, 68, 68, 0.2);
    color: var(--accent-red);
}

.status-pending {
    background: rgba(245, 158, 11, 0.2);
    color: var(--accent-orange);
}

/* ===== Toast ===== */
.toast-container {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.toast {
    padding: 1rem 1.5rem;
    background: var(--bg-card);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--accent-blue);
    box-shadow: var(--shadow-lg);
    animation: slideIn 0.3s ease;
}

.toast.error {
    border-color: var(--accent-red);
}

.toast.success {
    border-color: var(--accent-green);
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }

    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .sidebar {
        transform: translateX(-100%);
    }

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

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

    .menu-toggle {
        display: block;
    }
}

@media (max-width: 768px) {
    .header {
        flex-direction: column;
        align-items: flex-start;
    }

    .header-right {
        width: 100%;
    }

    .date-filter {
        flex-wrap: wrap;
        width: 100%;
    }

    .date-filter input {
        flex: 1;
        min-width: 120px;
    }

    .kpi-section {
        grid-template-columns: 1fr 1fr;
    }

    .charts-section {
        grid-template-columns: 1fr;
    }

    .table-section .card-header {
        flex-direction: column;
        gap: 1rem;
        align-items: flex-start;
    }

    .table-section .card-header input {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .kpi-section {
        grid-template-columns: 1fr;
    }

    .kpi-section.secondary {
        grid-template-columns: 1fr 1fr;
    }

    .dashboard-content {
        padding: 1rem;
    }
}

/* ===== Scrollbar ===== */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--bg-card-hover);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-blue);
}