/* ==============================================================================
   Multi-Vendor Bike Marketplace Platform - Modern SaaS Design System
   Responsive Admin & Sales Agent Dashboard Stylesheet (Vanilla CSS)
   ============================================================================== */

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

:root {
    --font-sans: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
    
    /* Color Palette */
    --primary: #3b82f6;
    --primary-hover: #2563eb;
    --primary-light: #eff6ff;
    --primary-dark: #1d4ed8;
    
    --sidebar-bg: #0b132b;
    --sidebar-surface: #1c2541;
    --sidebar-border: #1e293b;
    --sidebar-text: #94a3b8;
    --sidebar-text-active: #ffffff;
    --sidebar-active-bg: rgba(59, 130, 246, 0.15);

    --bg-main: #f8fafc;
    --card-bg: #ffffff;
    --card-border: #e2e8f0;
    
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;

    --success: #10b981;
    --success-bg: #ecfdf5;
    --warning: #f59e0b;
    --warning-bg: #fffbeb;
    --danger: #ef4444;
    --danger-bg: #fef2f2;
    --info: #0ea5e9;
    --info-bg: #f0f9ff;

    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-full: 9999px;

    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.04);

    --sidebar-width: 260px;
    --header-height: 68px;
    --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: var(--font-sans);
    background-color: var(--bg-main);
    color: var(--text-primary);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

/* ==============================================================================
   AUTH & LOGIN VIEW
   ============================================================================== */
.auth-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: radial-gradient(circle at top left, #1e293b, #0b132b);
    padding: 24px;
}

.auth-card {
    background: #ffffff;
    width: 100%;
    max-width: 440px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    padding: 40px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.auth-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 28px;
}

.auth-brand-logo {
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, var(--primary), #8b5cf6);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    font-weight: 800;
    font-size: 20px;
}

.auth-brand-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
}

.auth-brand-subtitle {
    font-size: 13px;
    color: var(--text-muted);
}

.auth-title {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 8px;
}

.auth-desc {
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 24px;
}

/* ==============================================================================
   LAYOUT STRUCTURE (Sidebar + Header + Main Area)
   ============================================================================== */
.app-layout {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: var(--sidebar-width);
    background-color: var(--sidebar-bg);
    color: var(--sidebar-text);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    z-index: 50;
    transition: var(--transition);
    border-right: 1px solid var(--sidebar-border);
}

.sidebar-header {
    height: var(--header-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
    border-bottom: 1px solid var(--sidebar-border);
}

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #ffffff;
    font-weight: 700;
    font-size: 17px;
    text-decoration: none;
}

.sidebar-logo-icon {
    width: 34px;
    height: 34px;
    background: linear-gradient(135deg, var(--primary), #6366f1);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    font-weight: 800;
    font-size: 16px;
}

.sidebar-menu {
    flex: 1;
    overflow-y: auto;
    padding: 20px 12px;
}

.menu-category {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: #64748b;
    margin: 16px 8px 8px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    color: var(--sidebar-text);
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    margin-bottom: 2px;
}

.nav-item:hover {
    color: #ffffff;
    background-color: var(--sidebar-surface);
}

.nav-item.active {
    color: var(--sidebar-text-active);
    background-color: var(--sidebar-active-bg);
    border-left: 3px solid var(--primary);
    font-weight: 600;
}

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

.sidebar-footer {
    padding: 16px;
    border-top: 1px solid var(--sidebar-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.user-badge {
    display: flex;
    align-items: center;
    gap: 10px;
    overflow: hidden;
}

.avatar {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, #4f46e5, #06b6d4);
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 14px;
    flex-shrink: 0;
}

.user-info {
    overflow: hidden;
}

.user-name {
    font-size: 13px;
    font-weight: 600;
    color: #ffffff;
    white-space: nowrap;
    text-overflow: ellipsis;
    overflow: hidden;
}

.user-role {
    font-size: 11px;
    color: var(--sidebar-text);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Main Area */
.main-wrapper {
    flex: 1;
    margin-left: var(--sidebar-width);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    transition: var(--transition);
}

.top-navbar {
    height: var(--header-height);
    background-color: var(--card-bg);
    border-bottom: 1px solid var(--card-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 32px;
    position: sticky;
    top: 0;
    z-index: 40;
}

.breadcrumb-nav {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--text-muted);
}

.breadcrumb-active {
    color: var(--text-primary);
    font-weight: 600;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.content-container {
    flex: 1;
    padding: 32px;
}

/* ==============================================================================
   DASHBOARD METRIC CARDS
   ============================================================================== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
    gap: 20px;
    margin-bottom: 32px;
}

.stat-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    padding: 24px;
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: #cbd5e1;
}

.stat-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.03em;
    margin-bottom: 6px;
}

.stat-value {
    font-size: 28px;
    font-weight: 800;
    color: var(--text-primary);
}

.stat-icon-wrapper {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
}

.stat-icon-blue { background-color: var(--primary-light); color: var(--primary); }
.stat-icon-green { background-color: var(--success-bg); color: var(--success); }
.stat-icon-amber { background-color: var(--warning-bg); color: var(--warning); }
.stat-icon-rose { background-color: var(--danger-bg); color: var(--danger); }
.stat-icon-sky { background-color: var(--info-bg); color: var(--info); }

/* ==============================================================================
   CARD & TABLE COMPONENTS
   ============================================================================== */
.content-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    margin-bottom: 28px;
    overflow: hidden;
}

.card-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--card-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
}

.card-title {
    font-size: 17px;
    font-weight: 700;
    color: var(--text-primary);
}

.card-subtitle {
    font-size: 13px;
    color: var(--text-muted);
    margin-top: 2px;
}

.card-toolbar {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.table-responsive {
    width: 100%;
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    font-size: 14px;
}

.data-table th {
    background-color: #f8fafc;
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 12px 20px;
    border-bottom: 1px solid var(--card-border);
    white-space: nowrap;
}

.data-table td {
    padding: 14px 20px;
    border-bottom: 1px solid var(--card-border);
    color: var(--text-primary);
    vertical-align: middle;
}

.data-table tbody tr:hover {
    background-color: #f8fafc;
}

.data-table tbody tr:last-child td {
    border-bottom: none;
}

/* ==============================================================================
   BADGES & STATUS
   ============================================================================== */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 3px 10px;
    border-radius: var(--radius-full);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.02em;
}

.badge-success { background-color: var(--success-bg); color: #065f46; border: 1px solid #a7f3d0; }
.badge-warning { background-color: var(--warning-bg); color: #92400e; border: 1px solid #fde68a; }
.badge-danger { background-color: var(--danger-bg); color: #991b1b; border: 1px solid #fecaca; }
.badge-info { background-color: var(--info-bg); color: #075985; border: 1px solid #bae6fd; }
.badge-secondary { background-color: #f1f5f9; color: #475569; border: 1px solid #cbd5e1; }

/* ==============================================================================
   FORM CONTROLS & BUTTONS
   ============================================================================== */
.form-group {
    margin-bottom: 18px;
}

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

.form-control {
    width: 100%;
    padding: 10px 14px;
    font-size: 14px;
    font-family: inherit;
    border: 1px solid var(--card-border);
    border-radius: var(--radius-sm);
    background-color: #ffffff;
    color: var(--text-primary);
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

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

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 9px 18px;
    font-size: 14px;
    font-weight: 600;
    font-family: inherit;
    border-radius: var(--radius-sm);
    cursor: pointer;
    border: 1px solid transparent;
    transition: var(--transition);
    text-decoration: none;
}

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

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

.btn-secondary {
    background-color: #ffffff;
    border-color: var(--card-border);
    color: var(--text-secondary);
}

.btn-secondary:hover {
    background-color: #f8fafc;
    color: var(--text-primary);
}

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

.btn-danger:hover {
    background-color: #dc2626;
}

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

.btn-success:hover {
    background-color: #059669;
}

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

/* ==============================================================================
   PAGINATION
   ============================================================================== */
.pagination {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 24px;
    border-top: 1px solid var(--card-border);
    font-size: 13px;
    color: var(--text-secondary);
}

.pagination-controls {
    display: flex;
    gap: 6px;
}

/* ==============================================================================
   MODAL WINDOW
   ============================================================================== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(4px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 100;
    padding: 20px;
}

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

.modal-content {
    background: #ffffff;
    border-radius: var(--radius-md);
    width: 100%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--card-border);
}

.modal-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--card-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-title {
    font-size: 18px;
    font-weight: 700;
}

.modal-close {
    background: none;
    border: none;
    font-size: 20px;
    cursor: pointer;
    color: var(--text-muted);
}

.modal-close:hover {
    color: var(--text-primary);
}

.modal-body {
    padding: 24px;
}

.modal-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--card-border);
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    background-color: #f8fafc;
}

/* ==============================================================================
   TOAST NOTIFICATIONS
   ============================================================================== */
.toast-container {
    position: fixed;
    top: 24px;
    right: 24px;
    z-index: 200;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.toast {
    background: #ffffff;
    border: 1px solid var(--card-border);
    border-left: 4px solid var(--primary);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-lg);
    padding: 14px 20px;
    min-width: 300px;
    max-width: 420px;
    font-size: 14px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    animation: slideIn 0.3s ease-out;
}

.toast.toast-success { border-left-color: var(--success); }
.toast.toast-error { border-left-color: var(--danger); }
.toast.toast-warning { border-left-color: var(--warning); }

@keyframes slideIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

/* ==============================================================================
   EMPTY & LOADING STATES
   ============================================================================== */
.empty-state {
    text-align: center;
    padding: 48px 24px;
    color: var(--text-secondary);
}

.empty-state-icon {
    font-size: 40px;
    color: var(--text-muted);
    margin-bottom: 12px;
}

.loading-spinner {
    display: inline-block;
    width: 28px;
    height: 28px;
    border: 3px solid rgba(59, 130, 246, 0.2);
    border-radius: 50%;
    border-top-color: var(--primary);
    animation: spin 0.8s linear infinite;
}

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

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

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

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

    .mobile-toggle {
        display: block !important;
    }
}

.mobile-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 22px;
    cursor: pointer;
    color: var(--text-primary);
}