/* Modern Professional Brick Factory POS - Blue/Slate Palette with Glassmorphism */

:root {
    /* Light Mode Colors */
    --primary-blue: #1e40af;
    --primary-blue-dark: #1e3a8a;
    --primary-blue-light: #3b82f6;
    --slate-50: #f8fafc;
    --slate-100: #f1f5f9;
    --slate-200: #e2e8f0;
    --slate-300: #cbd5e1;
    --slate-400: #94a3b8;
    --slate-500: #64748b;
    --slate-600: #475569;
    --slate-700: #334155;
    --slate-800: #1e293b;
    --slate-900: #0f172a;
    --accent-indigo: #6366f1;
    --success-green: #10b981;
    --warning-amber: #f59e0b;
    --danger-red: #ef4444;
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --text-primary: #0f172a;
    --text-secondary: #64748b;
    --border-color: #e2e8f0;
}

[data-theme="dark"] {
    --primary-blue: #3b82f6;
    --primary-blue-dark: #2563eb;
    --primary-blue-light: #60a5fa;
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --border-color: #334155;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-secondary);
    color: var(--text-primary);
    line-height: 1.6;
    transition: background 0.3s ease, color 0.3s ease;
}

/* When mobile sidebar is open, prevent background scrolling */
body.sidebar-open {
    overflow: hidden;
}

/* When Bootstrap modal is open, avoid blur that makes the UI look "greyed out" */
body.modal-open .top-bar,
body.modal-open .glass-card,
body.modal-open .professional-card {
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
}

/* Glassmorphism Card */
.glass-card {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 16px;
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.15);
    transition: all 0.3s ease;
}

[data-theme="dark"] .glass-card {
    background: rgba(30, 41, 59, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
}

.glass-card:hover {
    transform: none;
    box-shadow: 0 12px 40px 0 rgba(31, 38, 135, 0.2);
}

[data-theme="dark"] .glass-card:hover {
    box-shadow: 0 12px 40px 0 rgba(0, 0, 0, 0.4);
}

/* Sticky Sidebar */
.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    height: 100vh;
    width: 280px;
    background: var(--bg-primary);
    border-right: 1px solid var(--border-color);
    padding: 0;
    z-index: 1050;
    transition: transform 0.3s ease;
    box-shadow: 2px 0 10px rgba(0, 0, 0, 0.05);
    display: flex;
    flex-direction: column;
    /* Keep nav scrollable and footer reachable */
    overflow: hidden;
    visibility: visible;
    opacity: 1;
    transform: translateX(0);
}

[data-theme="dark"] .sidebar {
    box-shadow: 2px 0 10px rgba(0, 0, 0, 0.3);
}

.sidebar-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
}

.sidebar-nav-wrapper {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 1rem 0;
}

/* Mobile: allow the whole sidebar to scroll so footer never gets cut off */
@media (max-width: 1200px) {
    .sidebar {
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }

    .sidebar-nav-wrapper {
        overflow: visible;
        flex: 0 0 auto;
    }
}

.sidebar-footer {
    padding: 1.5rem;
    border-top: 1px solid var(--border-color);
    background: var(--bg-secondary);
    flex-shrink: 0;
}

.sidebar-brand {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-blue);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.sidebar-nav {
    list-style: none;
    padding: 0;
}

.sidebar-nav-item {
    margin: 0.25rem 0;
}

.sidebar-nav-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1.5rem;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.2s ease;
    border-left: 3px solid transparent;
    font-weight: 500;
}

.sidebar-nav-link:hover {
    background: var(--bg-secondary);
    color: var(--primary-blue);
    border-left-color: var(--primary-blue);
}

.sidebar-nav-link.active {
    background: rgba(59, 130, 246, 0.1);
    color: var(--primary-blue);
    border-left-color: var(--primary-blue);
    font-weight: 600;
}

.sidebar-nav-link i {
    font-size: 1.25rem;
    width: 24px;
    text-align: center;
}

.mobile-bottom-nav {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1200;
    display: none;
    align-items: center;
    gap: 0.5rem;
    overflow-x: auto;
    padding: 0.6rem 0.75rem calc(0.6rem + env(safe-area-inset-bottom));
    background: var(--bg-primary);
    border-top: 1px solid var(--border-color);
    box-shadow: 0 -6px 20px rgba(0, 0, 0, 0.08);
}

.mobile-bottom-link {
    text-decoration: none;
    min-width: 72px;
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.2rem;
    padding: 0.45rem 0.5rem;
    border-radius: 10px;
    color: var(--text-secondary);
    font-size: 0.7rem;
    font-weight: 600;
    line-height: 1.1;
    white-space: nowrap;
    transition: all 0.2s ease;
}

.mobile-bottom-link i {
    font-size: 1.05rem;
    line-height: 1;
}

.mobile-bottom-link.active {
    background: var(--bg-secondary);
    color: var(--primary-blue);
}

body.mobile-nav-active .mobile-bottom-nav {
    display: flex;
}

body.mobile-nav-active .main-content {
    padding-bottom: calc(5.5rem + env(safe-area-inset-bottom)) !important;
}

@media (max-width: 1200px), (pointer: coarse) {
    .mobile-bottom-nav {
        display: flex !important;
    }

    .main-content {
        padding-bottom: calc(5.5rem + env(safe-area-inset-bottom)) !important;
    }
}

@media (min-width: 1201px) and (pointer: fine) {
    .mobile-bottom-nav {
        display: none !important;
    }
}

/* Main Content */
.main-content {
    margin-left: 280px;
    padding: 2rem;
    min-height: 100vh;
    transition: margin-left 0.3s ease;
}

/* Debts: inline payment history panel */
.debt-history-row td {
    background: var(--bg-secondary);
}

.debt-history-panel {
    background: var(--bg-primary);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    padding: 0.5rem;
}

.debt-history-table {
    overflow-x: auto;
}

/* Top Bar */
.top-bar {
    background: var(--bg-primary);
    padding: 1rem 2rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: -2rem -2rem 2rem -2rem;
    position: sticky;
    top: 0;
    z-index: 100;
    /* NOTE: backdrop-filter can cause flicker/shimmer on some GPUs/browsers */
    backdrop-filter: none;
}

[data-theme="dark"] .top-bar {
    background: rgba(30, 41, 59, 0.95);
}

.top-bar-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

/* Dark Mode Toggle */
.theme-toggle {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 0.5rem 1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.2s ease;
    color: var(--text-primary);
}

.theme-toggle:hover {
    background: var(--slate-200);
    border-color: var(--primary-blue);
}

[data-theme="dark"] .theme-toggle:hover {
    background: var(--slate-700);
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    padding: 1.5rem;
    border-radius: 16px;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--accent-indigo) 100%);
    color: white;
    position: relative;
    overflow: hidden;
    transition: transform 0.3s ease;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    transition: all 0.5s ease;
}

.stat-card:hover {
    transform: translateY(-4px);
}

.stat-card:hover::before {
    transform: scale(1.2);
}

.stat-card.success {
    background: linear-gradient(135deg, var(--success-green) 0%, #059669 100%);
}

.stat-card.warning {
    background: linear-gradient(135deg, var(--warning-amber) 0%, #d97706 100%);
}

.stat-card.danger {
    background: linear-gradient(135deg, var(--danger-red) 0%, #dc2626 100%);
}

.stat-card.info {
    background: linear-gradient(135deg, var(--primary-blue-light) 0%, var(--primary-blue) 100%);
}

.stat-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
}

.stat-label {
    font-size: 0.875rem;
    opacity: 0.9;
    font-weight: 500;
}

.stat-icon {
    font-size: 2rem;
    opacity: 0.8;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    margin: 0.5rem 0;
    line-height: 1.2;
}

.stat-footer {
    font-size: 0.75rem;
    opacity: 0.8;
    margin-top: 0.5rem;
}

/* Professional Cards */
.professional-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

[data-theme="dark"] .professional-card {
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

.professional-card:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transform: none;
}

[data-theme="dark"] .professional-card:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
}

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

.card-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Buttons */
.btn-modern {
    padding: 0.75rem 1.5rem;
    border-radius: 12px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
}

.btn-primary-modern {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-dark) 100%);
    color: white;
}

.btn-primary-modern:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.4);
}

.btn-success-modern {
    background: linear-gradient(135deg, var(--success-green) 0%, #059669 100%);
    color: white;
}

.btn-danger-modern {
    background: linear-gradient(135deg, var(--danger-red) 0%, #dc2626 100%);
    color: white;
}

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

.btn-secondary-modern:hover {
    background: var(--bg-primary);
    border-color: var(--primary-blue);
    color: var(--primary-blue);
}

/* Forms */
.form-modern {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1rem;
    transition: all 0.2s ease;
}

/* Bootstrap modal tweaks (avoid overly dark blurred backdrop) */
.modal-backdrop {
    background-color: #000;
}

.modal-backdrop.show {
    opacity: 0.15;
}

/* Make sure modal is a real fullscreen overlay and above content */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2000;
    display: none;
    overflow-x: hidden;
    overflow-y: auto;
}

.modal.show {
    display: block;
}

.modal-backdrop {
    z-index: 1990;
}

.modal-content {
    border-radius: 16px;
    border: 1px solid var(--border-color);
}

.modal-header {
    border-bottom: 1px solid var(--border-color);
}

.modal-footer {
    border-top: 1px solid var(--border-color);
}

.form-modern:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

/* Tables */
.table-modern {
    width: 100%;
    border-collapse: collapse;
}

.table-modern thead {
    background: var(--bg-secondary);
    border-bottom: 2px solid var(--border-color);
}

.table-modern th {
    padding: 1rem;
    text-align: left;
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.table-modern td {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-secondary);
}

.table-modern tbody tr {
    transition: background 0.2s ease;
}

.table-modern tbody tr:hover {
    background: var(--bg-secondary);
}

/* Sales: highlight debt rows */
.table-modern tbody tr.debt-row {
    background: rgba(239, 68, 68, 0.10);
}

.table-modern tbody tr.debt-row:hover {
    background: rgba(239, 68, 68, 0.14);
}

/* Badges */
.badge-modern {
    display: inline-flex;
    align-items: center;
    padding: 0.375rem 0.75rem;
    border-radius: 8px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.badge-success {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success-green);
}

.badge-warning {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning-amber);
}

.badge-danger {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger-red);
}

.badge-primary {
    background: rgba(59, 130, 246, 0.1);
    color: var(--primary-blue);
}

/* Responsive */
@media (max-width: 1024px) {
    .sidebar {
        transform: translateX(-100%) !important;
        display: flex !important;
        visibility: visible !important;
        opacity: 1 !important;
    /* When the page is scrolled, keep the sidebar content independent */
    top: 0 !important;
    height: 100dvh;
    overflow-y: auto;
    overscroll-behavior: contain;
    }
    
    .sidebar.open {
        transform: translateX(0) !important;
    }
    
    .main-content {
        margin-left: 0 !important;
    }
    
    .sidebar-overlay {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0, 0, 0, 0.5);
        z-index: 1049;
        display: none !important;
        opacity: 0;
        transition: opacity 0.3s ease;
    }
    
    .sidebar-overlay.open {
        display: block !important;
        opacity: 1;
    }

}

/* Desktop - Always show sidebar */
@media (min-width: 1201px) {
    .sidebar {
        display: flex !important;
        visibility: visible !important;
        opacity: 1 !important;
        transform: translateX(0) !important;
        width: 280px !important;
        left: 0 !important;
    }
    
    .sidebar.open {
        transform: translateX(0) !important;
    }
    
    .sidebar-overlay {
        display: none !important;
    }
    
    #sidebar {
        display: flex !important;
        visibility: visible !important;
        opacity: 1 !important;
    }
}

@media (max-width: 768px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .main-content {
        padding: 1rem;
    }
    
    .top-bar {
        padding: 1rem;
        margin: -1rem -1rem 1rem -1rem;
    }
}

/* POS Split Screen */
.pos-container-modern {
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: 1.5rem;
    height: calc(100vh - 200px);
}

.pos-products {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 1.5rem;
    overflow-y: auto;
}

.pos-cart {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 1.5rem;
    position: sticky;
    top: 100px;
    max-height: calc(100vh - 200px);
    overflow-y: auto;
    display: block !important;
    visibility: visible !important;
    z-index: 1;
}

@media (max-width: 1024px) {
    .pos-container-modern {
        grid-template-columns: 1fr;
        height: auto;
    }
    
    .pos-cart {
        position: relative;
        top: 0;
        max-height: none;
    }
}

/* Product Grid */
.product-grid-modern {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1rem;
}

.product-card-modern {
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    padding: 1rem;
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: center;
}

.product-card-modern:hover {
    border-color: var(--primary-blue);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.2);
}

.product-card-modern.selected {
    border-color: var(--primary-blue);
    background: rgba(59, 130, 246, 0.1);
}

.product-card-modern.out-of-stock {
    opacity: 0.5;
    cursor: not-allowed;
}

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

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

::-webkit-scrollbar-thumb {
    background: var(--slate-400);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--slate-500);
}

[data-theme="dark"] ::-webkit-scrollbar-thumb {
    background: var(--slate-600);
}

[data-theme="dark"] ::-webkit-scrollbar-thumb:hover {
    background: var(--slate-500);
}