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

:root {
    --primary-color: #0ea5e9;
    --secondary-color: #64748b;
    --success-color: #22c55e;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --background: #f6f8fc;
    --surface: #ffffff;
    --surface-2: #f1f5f9;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --border: rgba(2, 6, 23, 0.12);
    --ring: rgba(14, 165, 233, 0.35);
    --shadow: 0 1px 2px rgba(2, 6, 23, 0.06), 0 2px 10px rgba(2, 6, 23, 0.06);
    --shadow-lg: 0 12px 32px rgba(2, 6, 23, 0.12);
    --radius: 14px;
    --radius-sm: 10px;
    --sidebar-width: 280px;
    --topbar-height: 64px;
}

html[data-theme="dark"] {
    --primary-color: #22d3ee;
    --secondary-color: #94a3b8;
    --success-color: #34d399;
    --warning-color: #fbbf24;
    --danger-color: #fb7185;
    --background: #070a12;
    --surface: #0b1220;
    --surface-2: #0f1a2c;
    --text-primary: #e2e8f0;
    --text-secondary: #9aa7bd;
    --border: rgba(148, 163, 184, 0.18);
    --ring: rgba(34, 211, 238, 0.35);
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.55), 0 8px 24px rgba(0, 0, 0, 0.35);
    --shadow-lg: 0 18px 46px rgba(0, 0, 0, 0.45);
}

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

body {
    min-height: 100vh;
}

.app-shell {
    min-height: 100vh;
    display: grid;
    grid-template-columns: var(--sidebar-width) 1fr;
}

body.sidebar-collapsed .app-shell {
    grid-template-columns: 88px 1fr;
}

.sidebar {
    position: sticky;
    top: 0;
    height: 100vh;
    background: linear-gradient(180deg, var(--surface), var(--surface-2));
    border-right: 1px solid var(--border);
    padding: 18px 14px;
    display: flex;
    flex-direction: column;
    gap: 14px;
    transition: width 0.18s ease, padding 0.18s ease;
}

body.sidebar-collapsed .sidebar {
    padding: 18px 10px;
}

body.sidebar-collapsed .brand-tagline {
    display: none;
}

body.sidebar-collapsed .brand-name {
    display: none;
}

body.sidebar-collapsed .nav-label {
    display: none;
}

body.sidebar-collapsed .sidebar-nav {
    padding: 6px 2px;
}

body.sidebar-collapsed .nav-btn {
    justify-content: center;
}

.sidebar-header {
    padding: 6px 6px 10px 6px;
}

.brand {
    display: flex;
    gap: 12px;
    align-items: center;
}

.brand-mark {
    width: 44px;
    height: 44px;
    border-radius: 14px;
    background: radial-gradient(120% 120% at 20% 20%, rgba(34, 211, 238, 0.3), rgba(14, 165, 233, 0.12) 40%, transparent 70%),
        rgba(14, 165, 233, 0.12);
    border: 1px solid var(--border);
    display: grid;
    place-items: center;
    box-shadow: var(--shadow);
}

.brand-mark svg {
    width: 22px;
    height: 22px;
    fill: var(--primary-color);
}

.brand-name {
    font-weight: 700;
    letter-spacing: -0.02em;
    font-size: 1.02rem;
    line-height: 1.15;
}

.brand-tagline {
    color: var(--text-secondary);
    font-size: 0.88rem;
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 6px;
}

.bmc-image--sidebar {
    display: flex;
    justify-content: center;
    padding: 6px 4px;
}

.bmc-image--sidebar a {
    display: inline-flex;
}

.bmc-image--sidebar img {
    display: block;
    height: auto;
    max-width: 100%;
}

.bmc-image--collapsed {
    display: none;
}

body.sidebar-collapsed .bmc-image--expanded {
    display: none;
}

body.sidebar-collapsed .bmc-image--collapsed {
    display: flex;
}

.bmc-image--expanded {
    transform: scale(0.9);
    transform-origin: center;
}

body.sidebar-collapsed .bmc-image--collapsed {
    padding: 4px 0;
    transform: none;
}

body.sidebar-collapsed .bmc-image--collapsed img {
    max-width: 26px;
}

body.sidebar-collapsed .bmc-image--collapsed a {
    width: 45px;
    height: 45px;
    border-radius: 999px;
    background: var(--surface);
    border: 1px solid var(--border);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow);
}

html[data-theme="dark"] body.sidebar-collapsed .bmc-image--collapsed a {
    background: rgba(255, 255, 255, 0.9);
    border-color: rgba(255, 255, 255, 0.18);
}

.nav-icon {
    width: 20px;
    height: 20px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.nav-icon svg {
    width: 20px;
    height: 20px;
    fill: currentColor;
}

.nav-label {
    flex: 1;
    text-align: left;
}

.app-main {
    min-width: 0;
}

.topbar {
    height: var(--topbar-height);
    position: sticky;
    top: 0;
    z-index: 20;
    background: rgba(255, 255, 255, 0.7);
    border-bottom: 1px solid var(--border);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 18px;
}

html[data-theme="dark"] .topbar {
    background: rgba(11, 18, 32, 0.65);
}

.local-data-banner {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 18px;
    background: rgba(245, 158, 11, 0.12);
    color: var(--text-secondary);
}

.local-data-banner--sidebar {
    margin-top: auto;
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 12px 12px;
}

body.sidebar-collapsed .local-data-banner--sidebar {
    padding: 10px;
    justify-content: center;
}

body.sidebar-collapsed .local-data-banner--sidebar .local-data-banner__text {
    display: none;
}

html[data-theme="dark"] .local-data-banner {
    background: rgba(245, 158, 11, 0.14);
}

.local-data-banner__icon {
    width: 18px;
    height: 18px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 auto;
    color: var(--warning-color);
}

.local-data-banner__text {
    font-size: 0.9rem;
}

.topbar-left {
    display: flex;
    align-items: center;
    gap: 12px;
}

.page-title {
    font-weight: 650;
    letter-spacing: -0.02em;
}

.topbar-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.icon-btn {
    width: 42px;
    height: 42px;
    border-radius: 12px;
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--text-secondary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: var(--shadow);
    transition: transform 0.12s ease, background 0.12s ease, color 0.12s ease, border-color 0.12s ease;
}

.icon-btn:hover {
    transform: translateY(-1px);
    color: var(--text-primary);
}

.icon-btn:focus-visible {
    outline: none;
    box-shadow: 0 0 0 4px var(--ring), var(--shadow);
}

.icon-btn svg {
    width: 20px;
    height: 20px;
    fill: currentColor;
}

.theme-icon {
    fill: none !important;
    stroke: currentColor;
    stroke-width: 1.7;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.nav-btn {
    padding: 0.75rem 0.9rem;
    border: 1px solid transparent;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: 12px;
    transition: transform 0.12s ease, background 0.12s ease, color 0.12s ease, border-color 0.12s ease;
    display: flex;
    align-items: center;
    gap: 10px;
}

.nav-btn:hover {
    background: rgba(14, 165, 233, 0.08);
    border-color: rgba(14, 165, 233, 0.18);
    color: var(--text-primary);
}

.nav-btn.active {
    background: rgba(14, 165, 233, 0.14);
    color: var(--text-primary);
    border-color: rgba(14, 165, 233, 0.28);
}

main {
    padding: 18px;
    max-width: 1400px;
    margin: 0 auto;
}

.tab-content {
    display: none;
}

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

/* Dashboard Styles */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: linear-gradient(180deg, var(--surface), var(--surface-2));
    padding: 1.25rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
}

.stat-card h3 {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.stat-value {
    font-size: 2rem;
    font-weight: bold;
    color: var(--primary-color);
}

.dashboard-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 2rem;
}

.chart-container {
    background: linear-gradient(180deg, var(--surface), var(--surface-2));
    padding: 1.25rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    height: 360px;
    display: flex;
    flex-direction: column;
    min-height: 0;
}

 .chart-container canvas {
     display: block;
     width: 100% !important;
     flex: 1;
     min-height: 0;
     height: auto !important;
 }

.recent-prints {
    background: linear-gradient(180deg, var(--surface), var(--surface-2));
    padding: 1.25rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
}

/* Inventory Styles */
.inventory-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

 .header-actions {
     display: flex;
     gap: 0.75rem;
     align-items: center;
 }

.inventory-controls {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
}

 .view-toggle {
     display: flex;
     gap: 0.5rem;
     margin-left: auto;
 }

 .view-toggle .view-btn {
     padding: 0.5rem 1rem;
     background: transparent;
     color: var(--text-secondary);
     border: 1px solid var(--border);
     border-radius: 0.5rem;
     cursor: pointer;
     transition: all 0.2s;
     display: inline-flex;
     align-items: center;
     justify-content: center;
     min-width: 44px;
 }

 .view-toggle .view-btn svg {
     width: 18px;
     height: 18px;
     fill: currentColor;
     display: block;
 }

 .view-toggle .view-btn:hover {
     background: var(--background);
 }

 .view-toggle .view-btn.active {
     background: var(--primary-color);
     color: white;
     border-color: var(--primary-color);
 }

.inventory-controls input,
.inventory-controls select {
    padding: 0.5rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    background: var(--surface);
    color: var(--text-primary);
}

.inventory-controls input:focus,
.inventory-controls select:focus {
    outline: none;
    box-shadow: 0 0 0 4px var(--ring);
    border-color: rgba(14, 165, 233, 0.55);
}

.inventory-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

 .inventory-grid.list-view {
     display: flex;
     flex-direction: column;
     gap: 0.75rem;
 }

 .inventory-grid.list-view .filament-card {
     display: grid;
     grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
     gap: 1rem;
     align-items: center;
     padding: 1rem;
 }

 .inventory-grid.list-view .filament-header {
     margin-bottom: 0;
 }

 .inventory-grid.list-view .filament-color {
     margin-bottom: 0;
 }

 .inventory-grid.list-view .progress-bar {
     margin: 0;
 }

 .inventory-grid.list-view .filament-stats {
     display: block;
 }

 .inventory-grid.list-view .filament-actions {
     margin-top: 0;
     justify-content: flex-end;
 }

.filament-card {
    background: linear-gradient(180deg, var(--surface), var(--surface-2));
    border-radius: var(--radius);
    padding: 1.25rem;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    transition: transform 0.12s ease, box-shadow 0.12s ease;
}

.filament-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

.filament-brand {
    font-weight: bold;
    font-size: 1.125rem;
}

.filament-material {
    background: rgba(14, 165, 233, 0.14);
    color: var(--text-primary);
    border: 1px solid rgba(14, 165, 233, 0.25);
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
    font-size: 0.75rem;
}

.filament-color {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.color-dot {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    border: 2px solid var(--border);
}

.filament-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
    font-size: 0.875rem;
}

.filament-actions {
    display: flex;
    gap: 0.5rem;
    margin-top: 1rem;
}

.inventory-3d {
    background: var(--surface);
    padding: 1.5rem;
    border-radius: 0.75rem;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
}

/* Print History Styles */
.prints-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.prints-filters {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
}

.prints-filters input,
.prints-filters select {
    padding: 0.5rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    background: var(--surface);
    color: var(--text-primary);
}

.prints-filters input:focus,
.prints-filters select:focus {
    outline: none;
    box-shadow: 0 0 0 4px var(--ring);
    border-color: rgba(14, 165, 233, 0.55);
}

.prints-table-container {
    background: linear-gradient(180deg, var(--surface), var(--surface-2));
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
}

#printsTable {
    width: 100%;
    border-collapse: collapse;
}

#printsTable th,
#printsTable td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

#printsTable th {
    background: rgba(14, 165, 233, 0.06);
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

#printsTable tr:hover {
    background: rgba(14, 165, 233, 0.06);
}

/* Analytics Styles */
.analytics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

 .analytics-actions-grid {
     display: grid;
     grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
     gap: 2rem;
     margin-bottom: 2rem;
 }

.chart-card {
    background: linear-gradient(180deg, var(--surface), var(--surface-2));
    padding: 1.25rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    height: 360px;
    display: flex;
    flex-direction: column;
    min-height: 0;
}

 .chart-card canvas {
     display: block;
     width: 100% !important;
     flex: 1;
     min-height: 0;
     height: auto !important;
 }

.export-section {
    background: linear-gradient(180deg, var(--surface), var(--surface-2));
    padding: 1.25rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    align-items: center;
}

 .export-section h3 {
     width: 100%;
 }

/* Button Styles */
.btn-primary {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 12px;
    cursor: pointer;
    font-weight: 500;
    transition: transform 0.12s ease, background 0.12s ease, box-shadow 0.12s ease;
    box-shadow: var(--shadow);
}

.btn-primary:hover {
    transform: translateY(-1px);
    background: #0284c7;
}

.btn-secondary {
    background: var(--secondary-color);
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 12px;
    cursor: pointer;
    font-weight: 500;
    transition: transform 0.12s ease, background 0.12s ease;
    box-shadow: var(--shadow);
}

.btn-secondary:hover {
    transform: translateY(-1px);
    background: #475569;
}

.btn-danger {
    background: var(--danger-color);
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 10px;
    cursor: pointer;
    font-size: 0.875rem;
    transition: transform 0.12s ease, background 0.12s ease;
}

.btn-danger:hover {
    transform: translateY(-1px);
    background: #dc2626;
}

.btn-sm {
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
}

.modal-content {
    background-color: var(--surface);
    margin: 5% auto;
    padding: 2rem;
    border-radius: var(--radius);
    width: 90%;
    max-width: 500px;
    position: relative;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border);
}

.close {
    position: absolute;
    right: 1rem;
    top: 1rem;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-secondary);
}

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

.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    transition: border-color 0.2s;
    background: var(--surface);
    color: var(--text-primary);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: rgba(14, 165, 233, 0.55);
    box-shadow: 0 0 0 4px var(--ring);
}

.form-actions {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
    margin-top: 1.5rem;
}

.feedback-status {
    min-height: 1.25rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-top: 0.75rem;
}

.feedback-status.is-success {
    color: var(--success-color);
}

.feedback-status.is-error {
    color: var(--danger-color);
}

/* Utility Classes */
.text-center {
    text-align: center;
}

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

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

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

.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 1rem; }
.mb-4 { margin-bottom: 1.5rem; }

/* Progress Bar Styles */
.progress-bar {
    width: 100%;
    height: 8px;
    background: var(--border);
    border-radius: 4px;
    margin: 1rem 0;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--success-color), var(--primary-color));
    transition: width 0.3s ease;
}

.recent-print-item {
    padding: 0.75rem;
    border-bottom: 1px solid var(--border);
}

.recent-print-item:last-child {
    border-bottom: none;
}

 #materialList {
     display: flex;
     flex-direction: column;
     gap: 0.5rem;
 }

 .material-row {
     display: flex;
     justify-content: space-between;
     align-items: center;
     padding: 0.75rem;
     border: 1px solid var(--border);
     border-radius: 0.5rem;
     background: var(--background);
 }

/* Responsive Design */
@media (max-width: 768px) {
    main {
        padding: 1rem;
    }
    
    .dashboard-content {
        grid-template-columns: 1fr;
    }
    
    .analytics-grid {
        grid-template-columns: 1fr;
    }
    
    .inventory-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .prints-filters {
        flex-direction: column;
    }
    
    .inventory-controls {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .nav-btn {
        font-size: 0.875rem;
        padding: 0.65rem 0.8rem;
    }

    .inventory-controls input,
    .inventory-controls select,
    .prints-filters input,
    .prints-filters select,
    .form-group input,
    .form-group select,
    .form-group textarea {
        font-size: 16px;
    }
}

@media (max-width: 1024px) {
    .app-shell {
        grid-template-columns: 1fr;
    }

    .sidebar {
        position: fixed;
        left: 0;
        top: 0;
        bottom: 0;
        width: min(var(--sidebar-width), 86vw);
        transform: translateX(-110%);
        transition: transform 0.18s ease;
        z-index: 60;
    }

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

    body.sidebar-open::before {
        content: '';
        position: fixed;
        inset: 0;
        background: rgba(0, 0, 0, 0.42);
        z-index: 50;
    }

    .topbar {
        padding: 0 12px;
    }
}