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

:root {
    /* Color Palette */
    --bg-main: #0f172a;
    --bg-card: #1e293b;
    --bg-card-hover: #334155;
    --bg-input: #0f172a;
    --border-color: #334155;
    --border-focus: #3b82f6;
    
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    
    --color-primary: #3b82f6;       /* Electric Blue */
    --color-primary-hover: #2563eb;
    --color-accent: #f97316;        /* Safety Orange */
    --color-accent-hover: #ea580c;
    --color-success: #10b981;       /* Emerald Green */
    --color-warning: #eab308;       /* Warning Yellow */
    --color-danger: #ef4444;        /* Danger Red */
    --color-luxtop-blue: #0e4e9f;   /* LUX-top Brand Blue */
    
    /* Gradients */
    --gradient-accent: linear-gradient(135deg, #f97316 0%, #eab308 100%);
    --gradient-primary: linear-gradient(135deg, #3b82f6 0%, #06b6d4 100%);
    --gradient-card: linear-gradient(180deg, #1e293b 0%, #111827 100%);

    /* Shadows & Borders */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.3), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-glow: 0 0 15px rgba(249, 115, 22, 0.2);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    
    /* Layout */
    --max-width: 1400px;
    --transition-fast: 0.15s ease;
    --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);

    /* Canvas & SVG variables */
    --bg-canvas: #0b0f19;
    --bg-canvas-overlay: rgba(15, 23, 42, 0.85);
    --svg-roof-path: #334155;
    --svg-dim-line: #475569;
}

body.light-theme {
    /* Color Palette */
    --bg-main: #f1f5f9;              /* Light slate background */
    --bg-card: #ffffff;              /* Clean white cards */
    --bg-card-hover: #f8fafc;
    --bg-input: #ffffff;
    --border-color: #cbd5e1;
    --border-focus: #006ab3;         /* LUX-top Blue */
    
    --text-primary: #0f172a;         /* Dark text */
    --text-secondary: #475569;       /* Medium grey text */
    --text-muted: #64748b;
    
    --color-primary: #006ab3;        /* LUX-top Blue */
    --color-primary-hover: #00508a;
    --color-accent: #fca503;         /* LUX-top Orange/Yellow accent */
    --color-accent-hover: #d98800;
    
    /* Gradients */
    --gradient-accent: linear-gradient(135deg, #fca503 0%, #f2a104 100%);
    --gradient-primary: linear-gradient(135deg, #006ab3 0%, #0093dd 100%);
    --gradient-card: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);

    /* Canvas & SVG variables */
    --bg-canvas: #f8fafc;            /* Clean light grey canvas */
    --bg-canvas-overlay: rgba(255, 255, 255, 0.95);
    --svg-roof-path: #94a3b8;
    --svg-dim-line: #cbd5e1;
    
    /* Shadows & Borders */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.02);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -2px rgba(0, 0, 0, 0.04);
    --shadow-glow: 0 0 15px rgba(0, 106, 179, 0.15);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background-color: var(--bg-main);
    color: var(--text-primary);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

h1, h2, h3, h4 {
    font-family: 'Outfit', sans-serif;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 1.25rem 0.75rem;
    width: 100%;
    box-sizing: border-box;
}

@media (min-width: 1280px) {
    .container {
        padding: 2rem 1.5rem;
    }
}

/* Header styling */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2.5rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 1.5rem;
}

.logo-section h1 {
    font-size: 2rem;
    color: var(--color-luxtop-blue);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-section p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-top: 0.25rem;
}

.header-actions {
    display: flex;
    gap: 1rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-family: 'Outfit', sans-serif;
    font-weight: 600;
    font-size: 0.95rem;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-sm);
    border: none;
    cursor: pointer;
    transition: var(--transition-normal);
}

.btn-primary {
    background: var(--gradient-primary);
    color: #ffffff;
    box-shadow: 0 4px 14px rgba(59, 130, 246, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.4);
}

.btn-accent {
    background: var(--gradient-accent);
    color: #ffffff;
    box-shadow: 0 4px 14px rgba(249, 115, 22, 0.3);
}

.btn-accent:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(249, 115, 22, 0.4);
}

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

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

.btn-danger {
    background-color: rgba(239, 68, 68, 0.15);
    color: var(--color-danger);
    border: 1px solid rgba(239, 68, 68, 0.3);
}

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

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: none !important;
}

/* Card layout */
.card {
    background: var(--gradient-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1.75rem;
    box-shadow: var(--shadow-lg);
    margin-bottom: 2rem;
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: transparent;
}

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

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

.card h2 {
    font-size: 1.5rem;
    margin-bottom: 1.25rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

/* Setup Wizard */
.wizard-container {
    max-width: 680px;
    margin: 1rem auto;
    padding: 1.25rem 1.75rem;
}

.wizard-steps {
    display: flex;
    justify-content: space-between;
    margin-bottom: 1.25rem;
    position: relative;
}

.wizard-steps::before {
    content: '';
    position: absolute;
    top: 15px;
    left: 0;
    right: 0;
    height: 2px;
    background-color: var(--border-color);
    z-index: 1;
}

.step-indicator {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
}

.step-number {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background-color: var(--bg-main);
    border: 2px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-secondary);
    transition: var(--transition-normal);
}

.step-indicator.active .step-number {
    border-color: var(--color-accent);
    color: var(--text-primary);
    background-color: var(--bg-card);
    box-shadow: 0 0 10px rgba(249, 115, 22, 0.4);
}

.step-indicator.completed .step-number {
    border-color: var(--color-success);
    background-color: var(--color-success);
    color: var(--bg-main);
}

.step-label {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
}

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

.wizard-panel {
    display: none;
}

.wizard-panel.active {
    display: block;
    animation: fadeIn 0.4s ease-out;
}

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

.wizard-options {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.25rem;
    margin-top: 1.5rem;
    margin-bottom: 2rem;
}

@media (min-width: 600px) {
    .wizard-options {
        grid-template-columns: repeat(2, 1fr);
    }
    .wizard-options.three-cols {
        grid-template-columns: repeat(3, 1fr);
    }
}

.option-card {
    background-color: rgba(30, 41, 59, 0.6);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    cursor: pointer;
    transition: var(--transition-normal);
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.option-card:hover {
    border-color: var(--text-secondary);
    background-color: var(--bg-card-hover);
    transform: translateY(-2px);
}

.option-card.selected {
    border-color: var(--color-accent);
    background-color: rgba(249, 115, 22, 0.08);
    box-shadow: var(--shadow-glow);
}

.option-card input[type="radio"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.option-title {
    font-family: 'Outfit', sans-serif;
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--text-primary);
}

.option-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.4;
}

.wizard-footer {
    display: flex;
    justify-content: space-between;
    margin-top: 1.25rem;
    border-top: 1px solid var(--border-color);
    padding-top: 1rem;
}

/* Main App Layout */
.app-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 1.25rem;
    width: 100%;
}

@media (min-width: 1024px) {
    .app-grid {
        grid-template-columns: minmax(300px, 360px) minmax(0, 1fr);
        gap: 1rem;
    }
}

@media (min-width: 1280px) {
    .app-grid {
        grid-template-columns: minmax(360px, 440px) minmax(0, 1fr);
        gap: 1.5rem;
    }
}

/* Form controls */
.form-group {
    margin-bottom: 1.25rem;
}

.form-label {
    display: block;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.form-input {
    width: 100%;
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    padding: 0.75rem 1rem;
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition-fast);
}

.form-input:focus {
    outline: none;
    border-color: var(--border-focus);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.25);
}

/* Segments section */
.segment-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    max-height: 500px; /* Increased slightly for better usability */
    overflow-y: auto;
    padding-right: 0.25rem;
    margin-bottom: 1.5rem;
}

.segment-list > .card {
    flex-shrink: 0;
}

/* Custom Scrollbar */
.segment-list::-webkit-scrollbar {
    width: 6px;
}
.segment-list::-webkit-scrollbar-track {
    background: var(--bg-main);
}
.segment-list::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 3px;
}

.segment-item {
    background-color: rgba(15, 23, 42, 0.4);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    position: relative;
    animation: slideIn 0.3s ease-out;
    transition: border-color 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
}

.segment-item.active-highlight {
    border-color: var(--color-primary) !important;
    box-shadow: 0 0 12px rgba(59, 130, 246, 0.3) !important;
    background-color: rgba(59, 130, 246, 0.08) !important;
}

@keyframes slideIn {
    from { opacity: 0; transform: translateX(-15px); }
    to { opacity: 1; transform: translateX(0); }
}

.segment-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid rgba(51, 65, 85, 0.4);
    padding-bottom: 0.5rem;
}

.segment-title {
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.segment-badge {
    background-color: var(--bg-card-hover);
    color: var(--text-secondary);
    padding: 0.15rem 0.5rem;
    border-radius: 12px;
    font-size: 0.75rem;
}

.segment-body {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.75rem;
}

@media (min-width: 400px) {
    .segment-body {
        grid-template-columns: 100px 1fr;
        align-items: flex-start;
    }
}

.corner-fields {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 0.5rem;
    margin-top: 0.5rem;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
    cursor: pointer;
    user-select: none;
}

.checkbox-label input {
    width: 16px;
    height: 16px;
    accent-color: var(--color-accent);
}

.segment-remove {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 0.9rem;
    transition: var(--transition-fast);
}

.segment-remove:hover {
    color: var(--color-danger);
}

/* Visualization Canvas */
.canvas-wrapper {
    width: 100%;
    height: 520px;
    background-color: var(--bg-canvas);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    position: relative;
    overflow: hidden;
    margin-bottom: 1.5rem;
}

.canvas-title {
    position: absolute;
    top: 1rem;
    left: 1rem;
    z-index: 10;
    background-color: var(--bg-canvas-overlay);
    border: 1px solid var(--border-color);
    padding: 0.35rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-secondary);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.canvas-legend {
    background-color: rgba(30, 41, 59, 0.4);
    border: 1px solid var(--border-color);
    padding: 0.75rem 1rem;
    border-radius: var(--radius-sm);
    font-size: 0.82rem;
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

@media (max-width: 640px) {
    .canvas-legend {
        gap: 0.5rem 1rem;
        padding: 0.6rem 0.75rem;
        font-size: 0.75rem;
    }
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
}

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

.legend-line {
    width: 14px;
    height: 3px;
}

/* SVG Rendering styles */
svg.preview-svg {
    width: 100%;
    height: 100%;
}

svg.preview-svg .roof-path {
    stroke: var(--svg-roof-path);
    stroke-width: 6;
    stroke-linecap: round;
    stroke-linejoin: round;
    fill: none;
}

svg.preview-svg .railing-path {
    stroke: #f97316;
    stroke-width: 3;
    stroke-linecap: round;
    stroke-linejoin: round;
    fill: none;
}

svg.preview-svg .knee-path {
    stroke: #fdba74;
    stroke-width: 1.5;
    stroke-dasharray: 4 2;
    fill: none;
}

svg.preview-svg .post-marker {
    fill: #3b82f6;
    stroke: #0f172a;
    stroke-width: 1.5;
}

svg.preview-svg .post-marker.post-heavy {
    fill: #ef4444;
    stroke: #0f172a;
    stroke-width: 2;
}

svg.preview-svg .weight-block {
    fill: #64748b;
    stroke: #334155;
    stroke-width: 1;
    opacity: 0.85;
}

svg.preview-svg .diagonal-line {
    stroke: #eab308;
    stroke-width: 2;
}

svg.preview-svg .text-label {
    fill: var(--text-primary);
    font-family: inherit;
    font-size: 10px;
    font-weight: 500;
}

svg.preview-svg .dim-line {
    stroke: var(--svg-dim-line);
    stroke-width: 1;
    stroke-dasharray: 2 2;
}

svg.preview-svg .dim-text {
    fill: var(--text-primary);
    font-family: inherit;
    font-weight: 700;
    text-anchor: middle;
    paint-order: stroke fill;
    stroke: var(--color-surface);
    stroke-linecap: round;
    stroke-linejoin: round;
}

svg.preview-svg .dim-post-line {
    stroke: #ef4444;
    stroke-linecap: round;
}

svg.preview-svg .dim-post-arrow {
    fill: #ef4444;
}

svg.preview-svg .dim-post-text {
    fill: #ef4444;
    font-family: inherit;
    font-weight: 700;
    text-anchor: middle;
    paint-order: stroke fill;
    stroke: var(--color-surface);
    stroke-linecap: round;
    stroke-linejoin: round;
}

/* Results / Stückliste Table */
.results-table-wrapper {
    overflow-x: auto;
    margin-top: 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    width: 100%;
    max-width: 100%;
}

.results-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    font-size: 0.9rem;
}

.results-table th {
    background-color: rgba(15, 23, 42, 0.6);
    color: var(--text-secondary);
    font-weight: 600;
    padding: 0.6rem 0.6rem;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    white-space: nowrap;
}

.results-table td {
    padding: 0.6rem 0.6rem;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
}

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

.results-table tr:hover td {
    background-color: rgba(30, 41, 59, 0.4);
}

.item-name {
    font-weight: 500;
    font-size: 0.875rem;
}

.item-art-num {
    display: inline-block;
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--color-primary);
    background: rgba(0, 106, 179, 0.08);
    border: 1px solid rgba(0, 106, 179, 0.25);
    padding: 1px 6px;
    border-radius: 4px;
    margin-left: 0.5rem;
    letter-spacing: 0.02em;
    vertical-align: middle;
}

.item-descr {
    font-size: 0.78rem;
    color: var(--text-secondary);
    display: block;
    margin-top: 0.15rem;
    line-height: 1.3;
}

@media (max-width: 1240px) {
    .item-descr {
        display: none;
    }
}

.bom-product-img {
    height: 36px;
    width: 48px;
    object-fit: contain;
    border-radius: var(--radius-sm);
    background-color: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    padding: 2px;
    transition: transform var(--transition-fast), border-color var(--transition-fast);
    flex-shrink: 0;
    cursor: zoom-in;
}

.bom-product-img:hover {
    transform: scale(1.1);
    border-color: var(--color-accent);
    background-color: rgba(255, 255, 255, 0.08);
}

/* Tooltip image preview style */
#bom-image-preview-tooltip {
    background: var(--bg-card);
    backdrop-filter: blur(8px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    padding: 10px;
    width: 220px;
    animation: fadeInTooltip 0.12s ease-out;
}

@keyframes fadeInTooltip {
    from {
        opacity: 0;
        transform: translateY(4px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Tooltip close button (rotes X): Hidden on desktop/PC, visible only on mobile */
.preview-tooltip-close {
    display: none !important;
}

/* Price toggle checkbox in BOM header */
.bom-header-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.price-toggle-label {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    cursor: pointer;
    user-select: none;
    color: var(--text-secondary);
    background: rgba(255, 255, 255, 0.04);
    padding: 0.45rem 0.75rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    transition: all 0.15s ease;
}

.price-toggle-label:hover {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-primary);
    border-color: var(--color-primary);
}

.price-toggle-label input[type="checkbox"] {
    cursor: pointer;
    width: 15px;
    height: 15px;
    accent-color: var(--color-accent);
    margin: 0;
}

.price-tax-badge {
    font-size: 0.72rem;
    font-weight: normal;
    opacity: 0.85;
}

.preview-tooltip-content img {
    width: 100%;
    height: auto;
    max-height: 180px;
    object-fit: contain;
    border-radius: var(--radius-sm);
    background-color: white;
    padding: 5px;
    box-sizing: border-box;
}

.preview-tooltip-caption {
    margin-top: 8px;
    font-size: 0.75rem;
    color: #f1f5f9;
    font-weight: 600;
    text-align: center;
    font-family: 'Outfit', sans-serif;
}

.item-qty {
    font-family: 'Outfit', sans-serif;
    font-weight: 600;
    text-align: center;
}

.item-price, .item-total {
    font-family: 'Outfit', sans-serif;
    text-align: right;
}

.item-total {
    font-weight: 600;
}

.results-summary {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-top: 1.5rem;
    padding: 1.25rem;
    background-color: rgba(15, 23, 42, 0.5);
    border-radius: var(--radius-sm);
    border: 1px dashed var(--border-color);
}

.summary-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.summary-row.total {
    border-top: 1px solid var(--border-color);
    padding-top: 0.75rem;
    margin-top: 0.25rem;
}

.summary-label {
    color: var(--text-secondary);
    font-weight: 500;
}

.summary-value {
    font-family: 'Outfit', sans-serif;
    font-weight: 600;
    font-size: 1.1rem;
}

.summary-row.total .summary-label {
    color: var(--text-primary);
    font-weight: 700;
    font-size: 1.25rem;
}

.summary-row.total .summary-value {
    font-size: 1.6rem;
    color: var(--color-success);
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Quick stats cards */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.stat-card {
    background-color: rgba(15, 23, 42, 0.4);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 0.75rem 1rem;
    text-align: center;
}

.stat-graphic-card {
    background-color: #ffffff !important;
    border: 1px solid #334155 !important;
    padding: 0.25rem !important;
    display: flex !important;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    height: 100%;
}

.graphic-img {
    max-height: 48px;
    max-width: 100%;
    width: auto;
    object-fit: contain;
    cursor: zoom-in;
    transition: transform var(--transition-fast);
}

.graphic-img:hover {
    transform: scale(1.05);
}

.stat-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-bottom: 0.25rem;
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

.stat-value {
    font-family: 'Outfit', sans-serif;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}

.stat-value.accent {
    color: var(--color-accent);
}

/* Settings Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(5px);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition-normal);
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.modal-content {
    background: var(--gradient-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    width: 90%;
    max-width: 600px;
    max-height: 85vh;
    overflow-y: auto;
    padding: 2rem;
    position: relative;
    transform: translateY(20px);
    transition: var(--transition-normal);
}

.modal-overlay.active .modal-content {
    transform: translateY(0);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.75rem;
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
    transition: var(--transition-fast);
}

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

.settings-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
}

@media (min-width: 480px) {
    .settings-grid {
        grid-template-columns: 1fr 120px;
        align-items: center;
    }
    .settings-grid .form-group {
        margin-bottom: 0;
    }
}

.settings-section-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-accent);
    margin-top: 1rem;
    margin-bottom: 0.5rem;
    border-bottom: 1px solid rgba(51, 65, 85, 0.3);
    padding-bottom: 0.25rem;
}

.settings-section-title:first-of-type {
    margin-top: 0;
}

/* Footer Section */
footer.app-footer {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-top: 4rem;
    border-top: 1px solid var(--border-color);
    padding-top: 1.5rem;
}

footer.app-footer a {
    color: var(--text-secondary);
    text-decoration: none;
}

footer.app-footer a:hover {
    color: var(--color-accent);
    text-decoration: underline;
}

.btn-canvas-action {
    position: absolute;
    bottom: 1rem;
    right: 1rem;
    z-index: 10;
    background-color: rgba(15, 23, 42, 0.85);
    border: 1px solid var(--border-color);
    padding: 0.45rem 0.9rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-primary);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    transition: var(--transition-normal);
    box-shadow: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
}

.btn-canvas-action:hover {
    background-color: var(--color-accent);
    border-color: var(--color-accent);
    color: #ffffff;
    transform: translateY(-1px);
    box-shadow: var(--shadow-glow);
}

/* Print/PDF Layout Override */
@media print {
    body {
        background-color: #ffffff !important;
        color: #000000 !important;
        font-size: 11pt !important;
    }

    .container {
        padding: 0 !important;
        max-width: 100% !important;
    }

    /* Hide configuration panels, buttons, and settings */
    header, 
    .btn, 
    .app-grid > div:first-child, 
    .modal-overlay,
    .canvas-title,
    .canvas-legend,
    footer.app-footer,
    .header-actions,
    .btn-canvas-action,
    .print-hide,
    .price-toggle-label,
    .preview-tooltip-close {
        display: none !important;
    }

    /* Layout full width and block-level flow for results to allow natural page breaks */
    .app-grid {
        display: block !important;
    }

    /* Compact stats card styles for print */
    .stats-grid {
        display: grid !important;
        grid-template-columns: repeat(3, 1fr) !important;
        gap: 0.75rem !important;
        margin-bottom: 1rem !important;
    }

    .stat-card {
        padding: 0.5rem !important;
        background: none !important;
        border: 1px solid #000000 !important;
    }

    .stat-label {
        font-size: 0.65rem !important;
        color: #475569 !important;
    }

    .stat-value {
        font-size: 1.1rem !important;
        color: #000000 !important;
    }

    .card {
        background: none !important;
        border: none !important;
        box-shadow: none !important;
        padding: 0 !important;
        margin-bottom: 1rem !important;
    }

    .card::before {
        display: none !important;
    }

    .card h2 {
        color: #000000 !important;
        border-bottom: 2px solid #000000 !important;
        padding-bottom: 0.35rem !important;
        margin-bottom: 0.75rem !important;
        font-size: 1.25rem !important;
    }

    /* Style table for print and make it compact */
    .results-table-wrapper {
        border: 1px solid #000000 !important;
    }

    .results-table th {
        background-color: #f1f5f9 !important;
        color: #000000 !important;
        border-bottom: 2px solid #000000 !important;
        padding: 0.5rem 0.75rem !important;
        font-size: 0.8rem !important;
    }

    .results-table td {
        color: #000000 !important;
        border-bottom: 1px solid #e2e8f0 !important;
        padding: 0.5rem 0.75rem !important;
        font-size: 0.9rem !important;
    }

    .item-descr {
        color: #475569 !important;
        font-size: 0.75rem !important;
    }

    .item-art-num {
        color: #334155 !important;
        background: #f1f5f9 !important;
        border: 1px solid #cbd5e1 !important;
        font-size: 0.72rem !important;
    }

    .bom-product-img {
        border-color: #cbd5e1 !important;
        background: none !important;
        height: 35px !important;
        width: 50px !important;
        padding: 0 !important;
    }

    .results-summary {
        margin-top: 0.75rem !important;
        padding: 0.75rem !important;
        border: 1px dashed #000000 !important;
        background: none !important;
    }

    .summary-row.total .summary-value {
        color: #000000 !important;
        -webkit-text-fill-color: #000000 !important;
        font-size: 1.3rem !important;
    }

    /* Print header styling */
    .print-header {
        display: flex !important;
        flex-direction: row !important;
        justify-content: space-between !important;
        align-items: center !important;
        margin-bottom: 1rem !important;
        border-bottom: 2px solid #000000 !important;
        padding-bottom: 0.6rem !important;
    }

    .print-header-info {
        flex: 1 !important;
    }

    .print-header-logo {
        flex-shrink: 0 !important;
        display: flex !important;
        align-items: center !important;
        justify-content: flex-end !important;
        padding-left: 1.5rem !important;
    }

    .print-logo-img {
        max-height: 48px !important;
        max-width: 190px !important;
        width: auto !important;
        height: auto !important;
        object-fit: contain !important;
    }

    .print-header h1 {
        font-size: 18pt !important;
        color: #000000;
        margin-bottom: 0.15rem !important;
    }

    .print-header p {
        color: #475569;
        font-size: 9pt !important;
    }

    /* Keep canvas but scale/invert styles if printed */
    .canvas-wrapper {
        border: 1px solid #000000 !important;
        background-color: #f8fafc !important;
        page-break-inside: avoid;
        height: 230px !important;
        margin-bottom: 1rem !important;
    }

    svg.preview-svg .roof-path {
        stroke: #94a3b8 !important;
    }

    svg.preview-svg .railing-path {
        stroke: #0f172a !important;
    }

    svg.preview-svg .text-label, svg.preview-svg .dim-text {
        fill: #000000 !important;
        stroke: #ffffff !important;
    }

    svg.preview-svg .dim-post-line {
        stroke: #dc2626 !important;
    }

    svg.preview-svg .dim-post-arrow {
        fill: #dc2626 !important;
    }

    svg.preview-svg .dim-post-text {
        fill: #dc2626 !important;
        stroke: #ffffff !important;
    }

    /* Print footer styling */
    .print-footer {
        display: block !important;
        position: fixed;
        bottom: 0;
        left: 0;
        width: 100%;
        text-align: center;
        font-size: 8pt !important;
        color: #64748b !important;
        border-top: 1px solid #cbd5e1 !important;
        padding-top: 0.25rem !important;
        font-family: 'Inter', sans-serif;
    }
}

/* Print elements (hidden on screen) */
.print-header, .print-footer {
    display: none;
}

/* Loading Overlay & Spinner */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(15, 23, 42, 0.7);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.spinner-container {
    background: rgba(30, 41, 59, 0.95);
    border: 1px solid var(--border-color);
    padding: 2rem 3rem;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.spinner {
    width: 48px;
    height: 48px;
    border: 4px solid rgba(249, 115, 22, 0.1);
    border-top-color: var(--color-accent);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.spinner-container p {
    font-family: 'Outfit', sans-serif;
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--text-primary);
}

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

/* Dachplaner Custom Styles */
.map-drop-zone:hover, .map-drop-zone.dragover {
    border-color: var(--color-accent) !important;
    background-color: rgba(249, 115, 22, 0.05) !important;
    box-shadow: 0 0 10px rgba(249, 115, 22, 0.15);
}

.map-drop-zone.has-image {
    border-style: solid !important;
    border-color: var(--color-success) !important;
    background-color: rgba(16, 185, 129, 0.05) !important;
}

/* Range sliders theme matching */
input[type="range"].form-range {
    -webkit-appearance: none;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
}

input[type="range"].form-range::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--color-accent);
    cursor: pointer;
    transition: background-color 0.15s ease;
}

input[type="range"].form-range::-webkit-slider-thumb:hover {
    background: var(--color-accent-hover);
}

/* Print optimizations for background images */
@media print {
    #dachplaner-card {
        display: none !important;
    }
}

/* Interactive Drawing Cursor */
svg.preview-svg.interacting {
    cursor: crosshair !important;
}

/* Zoom Button Hover */
button.btn-zoom:hover {
    background: var(--color-primary) !important;
    color: white !important;
    border-color: var(--color-primary) !important;
}

/* Details/summary styling for collapsable transformation controls */
.details-collapse summary::-webkit-details-marker {
    display: none !important;
}
.details-collapse summary {
    list-style: none !important;
}
.details-collapse[open] .chevron-icon {
    transform: rotate(180deg);
}
.details-collapse {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 0.75rem 1rem;
    background: rgba(15, 23, 42, 0.25);
    transition: background-color 0.2s ease;
}
.details-collapse:hover {
    background: rgba(15, 23, 42, 0.35);
}

/* Map drop zone interactivity styling */
.map-drop-zone:hover {
    border-color: var(--color-primary) !important;
    background-color: rgba(59, 130, 246, 0.08) !important;
    box-shadow: 0 0 10px rgba(59, 130, 246, 0.1);
}
.map-drop-zone:hover button {
    background-color: var(--color-primary) !important;
    border-color: var(--color-primary) !important;
    color: white !important;
}
.map-drop-zone.dragover {
    border-color: #10b981 !important;
    background-color: rgba(16, 185, 129, 0.08) !important;
    box-shadow: 0 0 12px rgba(16, 185, 129, 0.2);
}
.map-drop-zone.dragover button {
    background-color: #10b981 !important;
    border-color: #10b981 !important;
    color: white !important;
}

/* --- INTERACTIVE USER TOUR STYLES --- */
#tour-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(15, 23, 42, 0.7);
    backdrop-filter: blur(2px);
    z-index: 99998;
    pointer-events: auto;
    transition: opacity 0.3s ease;
    display: none;
}

.tour-highlight {
    position: relative !important;
    z-index: 100000 !important;
    box-shadow: 0 0 0 4px var(--color-accent), 0 10px 30px rgba(0, 0, 0, 0.5) !important;
    outline: none !important;
    pointer-events: none !important; /* prevent interaction while highlighted if needed */
}

/* Tooltip card */
#tour-tooltip-card {
    position: fixed;
    z-index: 100001;
    width: 320px;
    background: rgba(30, 41, 59, 0.95);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-md);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.3), 0 10px 10px -5px rgba(0, 0, 0, 0.3);
    padding: 1.25rem;
    color: var(--text-primary);
    transition: left 0.3s ease, top 0.3s ease, transform 0.3s ease;
    animation: tourCardFadeIn 0.25s ease-out;
}

@keyframes tourCardFadeIn {
    from {
        opacity: 0;
        transform: scale(0.95) translateY(5px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.tour-step-counter {
    font-size: 0.7rem;
    text-transform: uppercase;
    color: var(--color-accent);
    font-weight: 700;
    margin-bottom: 0.25rem;
    letter-spacing: 0.05em;
    font-family: 'Outfit', sans-serif;
}

.tour-title {
    font-family: 'Outfit', sans-serif;
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #ffffff;
}

.tour-desc {
    font-size: 0.825rem;
    color: var(--text-secondary);
    line-height: 1.4;
    margin-bottom: 1.25rem;
}

.tour-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0.75rem;
}

.btn-tour-skip {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 0.75rem;
    cursor: pointer;
    padding: 0.25rem 0.5rem;
    transition: color 0.2s;
    font-family: inherit;
    font-weight: 500;
}

.btn-tour-skip:hover {
    color: #ffffff;
}

.btn-tour-next {
    background: var(--color-accent);
    border: none;
    color: #ffffff;
    padding: 0.4rem 0.85rem;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background-color 0.2s;
    font-family: inherit;
    box-shadow: 0 2px 4px rgba(249, 115, 22, 0.2);
}

.btn-tour-next:hover {
    background-color: #ea580c;
}

/* ==========================================================================
   SECURE AUTHENTICATION GATE (Zero-Access Protection)
   ========================================================================== */
.app-wrapper.hidden {
    display: none !important;
}

.auth-gate-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: #0b1120;
    background-image: 
        radial-gradient(at 0% 0%, rgba(0, 106, 179, 0.3) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(245, 158, 11, 0.18) 0px, transparent 50%),
        radial-gradient(at 50% 50%, rgba(15, 23, 42, 1) 0px, rgba(11, 17, 32, 1) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
    z-index: 999999;
    box-sizing: border-box;
}

.auth-card {
    background: rgba(30, 41, 59, 0.75);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border: 1px solid rgba(255, 255, 255, 0.12);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.7), 0 0 35px rgba(0, 106, 179, 0.25);
    border-radius: 18px;
    width: 100%;
    max-width: 440px;
    padding: 2.25rem 2rem;
    text-align: center;
    box-sizing: border-box;
    animation: authFadeIn 0.35s ease-out;
}

@keyframes authFadeIn {
    from { opacity: 0; transform: scale(0.96) translateY(8px); }
    to { opacity: 1; transform: scale(1) translateY(0); }
}

.auth-brand {
    margin-bottom: 1.5rem;
}

.auth-logo-badge {
    width: 58px;
    height: 58px;
    border-radius: 16px;
    background: linear-gradient(135deg, rgba(0, 106, 179, 0.3) 0%, rgba(245, 158, 11, 0.22) 100%);
    border: 1px solid rgba(0, 106, 179, 0.45);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary, #006ab3);
    margin-bottom: 0.75rem;
    box-shadow: 0 4px 14px rgba(0, 106, 179, 0.25);
}

.auth-title {
    font-size: 1.4rem;
    font-weight: 700;
    color: #f8fafc;
    margin: 0 0 0.25rem 0;
    letter-spacing: -0.01em;
}

.auth-subtitle {
    font-size: 0.85rem;
    color: #94a3b8;
    margin: 0;
    font-weight: 500;
}

.auth-body {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding-top: 1.5rem;
}

.auth-status-icon {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: rgba(245, 158, 11, 0.12);
    border: 1px solid rgba(245, 158, 11, 0.3);
    color: #f59e0b;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 0.75rem;
}

.auth-heading {
    font-size: 1.15rem;
    font-weight: 600;
    color: #f1f5f9;
    margin: 0 0 0.5rem 0;
}

.auth-desc {
    font-size: 0.82rem;
    color: #94a3b8;
    line-height: 1.45;
    margin: 0;
}

.auth-input {
    text-align: center;
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    font-size: 0.95rem;
    letter-spacing: 0.06em;
    padding: 0.75rem 1rem;
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 8px;
    color: #fff;
    width: 100%;
    box-sizing: border-box;
    transition: all 0.2s ease;
}

.auth-input:focus {
    outline: none;
    border-color: #006ab3;
    box-shadow: 0 0 0 3px rgba(0, 106, 179, 0.25);
    background: rgba(15, 23, 42, 0.85);
}

.auth-error-message {
    color: #ef4444;
    font-size: 0.8rem;
    font-weight: 500;
    margin-top: 0.5rem;
    text-align: center;
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.25);
    padding: 0.45rem 0.65rem;
    border-radius: 6px;
    line-height: 1.35;
}

.btn-auth-submit {
    width: 100%;
    margin-top: 1.25rem;
    padding: 0.75rem 1rem;
    font-size: 0.95rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    background: linear-gradient(135deg, #006ab3 0%, #004d80 100%);
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: white;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-auth-submit:hover:not(:disabled) {
    background: linear-gradient(135deg, #0077c8 0%, #005a96 100%);
    box-shadow: 0 4px 14px rgba(0, 106, 179, 0.4);
    transform: translateY(-1px);
}

.btn-auth-submit:disabled {
    opacity: 0.65;
    cursor: not-allowed;
}

.auth-spinner {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: authSpin 0.7s linear infinite;
    margin-right: 0.5rem;
    vertical-align: middle;
}

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

.auth-footer {
    margin-top: 1.5rem;
    padding-top: 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    font-size: 0.72rem;
    color: #64748b;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
}

.auth-footer-dot {
    opacity: 0.5;
}

/* ==========================================================================
   MOBILE RESPONSIVE STYLES (Smartphones <= 768px)
   Affects ONLY mobile screens. Desktop browser view (> 768px) remains untouched.
   ========================================================================== */
@media (max-width: 768px) {
    /* 1. Page container & base margins */
    .container {
        padding: 0.75rem 0.6rem !important;
    }

    /* 2. Structured, organized header without overflow (Bild 3) */
    header#main-header {
        flex-direction: column !important;
        align-items: stretch !important;
        gap: 0.85rem !important;
        margin-bottom: 1.25rem !important;
        padding-bottom: 1rem !important;
    }

    header#main-header .logo-section {
        display: flex !important;
        flex-direction: column !important;
        align-items: flex-start !important;
        width: 100% !important;
    }

    header#main-header .logo-section h1 {
        font-size: 1.35rem !important;
        line-height: 1.25 !important;
        white-space: normal !important;
        word-break: keep-all !important;
    }

    header#main-header .logo-section p {
        font-size: 0.78rem !important;
        margin-top: 0.2rem !important;
    }

    header#main-header .header-actions {
        display: flex !important;
        align-items: center !important;
        justify-content: flex-start !important;
        gap: 0.45rem !important;
        width: 100% !important;
        flex-wrap: wrap !important;
    }

    header#main-header .header-actions .btn {
        padding: 0.45rem 0.75rem !important;
        font-size: 0.82rem !important;
    }

    #btn-start-tour,
    #btn-toggle-theme,
    #btn-logout {
        width: 36px !important;
        height: 36px !important;
        min-width: 36px !important;
        margin: 0 !important;
        padding: 0 !important;
        flex-shrink: 0 !important;
    }

    /* 3. Hide Montagerichtlinien completely on mobile (Bild 2) */
    #montage-guidelines-card {
        display: none !important;
    }

    /* 4. Clean Stückliste (BOM): Hide Article Numbers & ensure all prices fit completely (Bild 1) */
    #bom-card {
        padding: 0.85rem 0.5rem !important;
    }

    /* Red close button: Visible ONLY on mobile smartphones */
    .preview-tooltip-close {
        display: flex !important;
        align-items: center !important;
        justify-content: center !important;
    }

    .bom-header-actions {
        width: 100% !important;
        justify-content: space-between !important;
        gap: 0.4rem !important;
        margin-top: 0.5rem !important;
    }

    .price-toggle-label {
        font-size: 0.76rem !important;
        padding: 0.35rem 0.5rem !important;
        gap: 0.35rem !important;
    }

    .price-toggle-label input[type="checkbox"] {
        width: 14px !important;
        height: 14px !important;
    }

    .item-art-num {
        display: none !important;
    }

    .results-table-wrapper {
        border-radius: var(--radius-sm) !important;
        overflow-x: auto !important;
        -webkit-overflow-scrolling: touch !important;
        width: 100% !important;
        margin-top: 0.75rem !important;
    }

    .results-table {
        width: 100% !important;
        min-width: 100% !important;
        table-layout: auto !important;
        font-size: 0.78rem !important;
    }

    .results-table th, 
    .results-table td {
        padding: 0.5rem 0.25rem !important;
    }

    .results-table th:first-child,
    .results-table td:first-child {
        width: auto !important;
    }

    .results-table th:nth-child(2),
    .results-table td:nth-child(2) {
        width: 1% !important;
        min-width: 34px !important;
        white-space: nowrap !important;
        text-align: center !important;
        font-size: 0.85rem !important;
    }

    .results-table th.price-col:nth-child(3),
    .results-table td.price-col:nth-child(3) {
        width: 1% !important;
        min-width: 58px !important;
        white-space: nowrap !important;
        text-align: right !important;
        font-size: 0.76rem !important;
    }

    .results-table th.price-col:nth-child(4),
    .results-table td.price-col:nth-child(4) {
        width: 1% !important;
        min-width: 66px !important;
        white-space: nowrap !important;
        text-align: right !important;
        font-size: 0.76rem !important;
        font-weight: 600 !important;
    }

    .item-name {
        font-size: 0.78rem !important;
        line-height: 1.25 !important;
        word-break: break-word !important;
    }

    .bom-product-img {
        width: 28px !important;
        height: 24px !important;
        min-width: 28px !important;
        margin-left: 0.25rem !important;
        padding: 1px !important;
        flex-shrink: 0 !important;
    }

    .results-table th {
        font-size: 0.68rem !important;
        letter-spacing: -0.02em !important;
    }

    .item-qty {
        font-size: 0.85rem !important;
    }

    /* 5. Compact Quick Stats on mobile */
    .stats-grid {
        gap: 0.5rem !important;
        margin-bottom: 1rem !important;
    }

    .stat-card {
        padding: 0.65rem 0.45rem !important;
    }

    .stat-card .stat-label {
        font-size: 0.68rem !important;
    }

    .stat-card .stat-value {
        font-size: 1.05rem !important;
    }
}