:root {
    /* Color Palette - TECNAC Corporate Light */
    --bg-base: #ffffff;
    --panel-bg: #f8fafc;
    --panel-border: #e2e8f0;
    
    --primary: #1565C0; /* Blue TECNAC */
    --primary-hover: #0D47A1;
    --primary-glow: rgba(21, 101, 192, 0.15);
    
    --accent: #1565C0; 
    --accent-glow: rgba(21, 101, 192, 0.1);
    
    --text-main: #1a2744; /* Navy TECNAC */
    --text-muted: #64748b;
    
    --danger: #ef4444;
    --danger-glow: rgba(239, 68, 68, 0.1);
    
    --warning: #f59e0b;
    --warning-glow: rgba(245, 158, 11, 0.1);

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.05);
    
    --glass-blur: none;

    /* Layout */
    --sidebar-w: 420px;
    --header-h: 70px;
}



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

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background-color: var(--bg-base);
    color: var(--text-main);
    line-height: 1.5;
    height: 100vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    position: relative;
    transition: background-color 0.4s ease, color 0.4s ease;
}

/* Stunning Dynamic Background */
.tech-bg-overlay {
    background: #f1f5f9;
    position: fixed;
    inset: 0;
    z-index: -1;
}


@keyframes bgPulse {
    0% { transform: scale(1) translate(0, 0); }
    100% { transform: scale(1.1) translate(-2%, 2%); }
}

/* Header */
header {
    background: var(--bg-base);
    border-bottom: 2px solid var(--primary);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
    z-index: 10;
    height: var(--header-h);
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.header-left {
    padding: 4px 0;
    display: flex;
    align-items: center;
}

.main-logo {
    height: 36px;
    filter: drop-shadow(0 1px 3px rgba(0,0,0,0.08));
    transition: transform 0.3s ease;
}

.main-logo:hover {
    transform: scale(1.02);
}

/* Buttons */
.tech-btn {
    background: linear-gradient(135deg, rgba(255,255,255,0.05) 0%, rgba(255,255,255,0.01) 100%);
    border: 1px solid var(--panel-border);
    color: var(--text-main);
    padding: 0.6rem 1.2rem;
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.tech-btn:hover {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
    box-shadow: 0 4px 12px var(--primary-glow);
    transform: translateY(-1px);
}

.tech-btn:active {
    transform: translateY(1px);
}

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

.tech-select-mini {
    background: var(--panel-bg);
    border: 1px solid var(--panel-border);
    color: var(--text-main);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    font-weight: 500;
    cursor: pointer;
    outline: none;
    backdrop-filter: var(--glass-blur);
    transition: all 0.2s;
}

.tech-select-mini:hover, .tech-select-mini:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-glow);
}

/* Layout */
main {
    flex: 1;
    display: grid;
    grid-template-columns: var(--sidebar-w) 1fr;
    gap: 1.5rem;
    overflow: hidden;
    position: relative;
    padding: 1.5rem;
}

/* Sidebar Elements */
.sidebar {
    background: var(--panel-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--panel-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: 0.8rem 1rem;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    position: relative;
    z-index: 10;
}

/* Hide scrollbar for sidebar but keep functionality */
.sidebar::-webkit-scrollbar {
    width: 6px;
}
.sidebar::-webkit-scrollbar-track {
    background: transparent;
}
.sidebar::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 4px;
}

.panel-section {
    background: transparent;
    border: none;
    padding: 0;
    margin-bottom: 0;
}

h2 {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--primary);
    margin-bottom: 0.3rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding-bottom: 0.3rem;
    border-bottom: 1px solid var(--panel-border);
}

.form-group {
    margin-bottom: 0.4rem;
}

.form-group.row {
    display: flex;
    gap: 0.5rem;
}

.form-group.row .col {
    flex: 1;
    min-width: 0;
}

.form-group label {
    display: block;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-muted);
    margin-bottom: 0.2rem;
}

input, select {
    width: 100%;
    background: #ffffff;
    border: 1px solid var(--panel-border);
    color: var(--text-main);
    padding: 0.4rem 0.6rem;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-family: inherit;
    outline: none;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}


input:focus, select:focus {
    border-color: var(--primary);
    background: rgba(59, 130, 246, 0.05);
    box-shadow: 0 0 0 3px var(--primary-glow);
}

select option {
    background: var(--bg-base);
    color: var(--text-main);
}

/* Textarea */
.tech-textarea {
    width: 100%;
    min-height: 100px;
    background: rgba(0, 0, 0, 0.1);
    border: 1px solid var(--panel-border);
    color: var(--text-main);
    padding: 0.75rem;
    border-radius: var(--radius-sm);
    resize: vertical;
    font-family: inherit;
    font-size: 0.9rem;
    transition: all 0.2s;
    outline: none;
}


.tech-textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-glow);
}

/* Alerts and Validations */
.validation-error {
    font-size: 0.85rem;
    font-weight: 500;
    margin-top: 1rem;
    color: var(--danger);
    background: rgba(239, 68, 68, 0.1);
    padding: 0.75rem;
    border-radius: var(--radius-sm);
    border-left: 3px solid var(--danger);
}

.range-alert-big {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    padding: 1rem;
    border-radius: var(--radius-sm);
    color: var(--danger);
    font-size: 0.85rem;
    line-height: 1.5;
    margin-top: 1rem;
    animation: alertPulse 2s infinite ease-in-out;
}

@keyframes alertPulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.4); }
    50% { box-shadow: 0 0 0 4px rgba(239, 68, 68, 0.1); }
}

/* Hardware Box (BOM) */
.bom-list {
    margin-top: 0.5rem;
}

.bom-item {
    display: flex;
    justify-content: space-between;
    padding: 0.5rem;
    border-radius: var(--radius-sm);
    background: rgba(255,255,255,0.02);
    margin-bottom: 0.25rem;
    font-size: 0.85rem;
    border: 1px solid transparent;
    transition: border-color 0.2s;
}

.bom-item:hover {
    border-color: var(--panel-border);
    background: rgba(255,255,255,0.04);
}

/* Hardware Info Chip */
.hardware-info-chip {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.6rem 0.8rem;
    background: linear-gradient(to right, rgba(59, 130, 246, 0.1), rgba(16, 185, 129, 0.1));
    border: 1px solid var(--panel-border);
    border-radius: var(--radius-sm);
    margin-top: 0.75rem;
}

.chip-label {
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
}

#hardware-type-chip {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--text-main);
}

/* Results HUD */
.results-box {
    background: #ffffff;
    border: 1px solid #1565C0;
    border-radius: var(--radius-md);
    padding: 0.75rem 1rem;
    margin-top: 0.25rem;
    box-shadow: 0 4px 20px rgba(0,0,0,0.05);
}


.result-header {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 0.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.result-header::after {
    content: '';
    display: inline-block;
    width: 8px;
    height: 8px;
    background: var(--accent);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--accent-glow);
}

.result-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.2rem 0;
    border-bottom: 1px solid var(--panel-border);
}

.results-scroll-area {
    max-height: 120px;
    overflow-y: auto;
    padding-right: 4px;
}

.results-scroll-area::-webkit-scrollbar {
    width: 4px;
}
.results-scroll-area::-webkit-scrollbar-track {
    background: rgba(0,0,0,0.02);
}
.results-scroll-area::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 4px;
}

.result-item:last-of-type {
    border-bottom: none;
}

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

.result-value {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-main);
}

#btn-copy {
    width: 100%;
    margin-top: 1.5rem;
    background: var(--accent);
    color: #ffffff;
    border: none;
    padding: 0.8rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    box-shadow: 0 4px 12px var(--accent-glow);
}

#btn-copy:hover {
    background: #059669; /* Emerald 600 */
    transform: translateY(-2px);
    box-shadow: 0 6px 16px var(--accent-glow);
}

/* Canvas Area */
.canvas-area {
    background: var(--panel-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--panel-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    padding: 2rem;
}

.watermark-main-panel {
    position: absolute;
    inset: 0;
    background-image: url('assets/logo con eslogan.png');
    background-repeat: no-repeat;
    background-position: center;
    background-size: 45%;
    opacity: 0.03;
    pointer-events: none;
    z-index: 0;
}

.proyecto-top-bar {
    position: absolute;
    top: 15px;
    left: 20px;
    right: 180px; /* leaves space for handle preview */
    background: transparent;
    display: flex;
    gap: 1rem;
    z-index: 40;
}

#drawing-wrapper {
    width: 100%;
    height: 100%;
    position: relative;
    margin-top: 90px;
    border-radius: var(--radius-md);
    background: transparent;
    display: flex;
    justify-content: center;
    align-items: center;
    user-select: none;
    transition: all 0.3s ease;
}

svg {
    max-width: 100%;
    max-height: 100%;
    width: 100%;
    height: 100%;
    touch-action: none;
    filter: drop-shadow(0 4px 12px rgba(0,0,0,0.2));
}

svg * {
    pointer-events: visiblePainted;
}

.empty-state {
    text-align: center;
    color: var(--text-muted);
    background: rgba(0,0,0,0.2);
    padding: 2rem;
    border-radius: var(--radius-md);
    border: 1px dashed var(--panel-border);
    font-weight: 500;
    backdrop-filter: blur(4px);
}

/* GOD MODE - Keeping functionality */
body.god-mode-active svg {
    pointer-events: auto;
}

body.god-mode-active #drawing-wrapper {
    border: 2px solid var(--warning);
    box-shadow: 0 0 20px var(--warning-glow);
}

body.god-mode-active svg * {
    pointer-events: none !important;
}

body.god-mode-active .draggable-piece,
body.god-mode-active .draggable-falleba,
body.god-mode-active .draggable-piece *,
body.god-mode-active .draggable-falleba *,
body.god-mode-active .drag-hitbox,
body.god-mode-active .coord-input-wrapper,
body.god-mode-active .coord-input-wrapper * {
    pointer-events: all !important;
}

body.god-mode-active .draggable-piece,
body.god-mode-active .draggable-falleba {
    cursor: move !important;
    user-select: none;
}

body.god-mode-active .draggable-piece:hover,
body.god-mode-active .draggable-falleba:hover {
    outline: 2px dashed rgba(245, 158, 11, 0.8);
    background: rgba(245, 158, 11, 0.1);
}

body.god-mode-active .coord-input-wrapper * {
    cursor: default !important;
}

.god-hud {
    display: flex;
    gap: 4px;
    background: rgba(15, 23, 42, 0.9);
    padding: 6px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--warning);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
    pointer-events: auto;
}

.god-input {
    width: 90px;
    height: 28px;
    background: #000;
    color: var(--warning);
    border: 1px solid var(--panel-border);
    border-radius: 4px;
    font-size: 13px;
    padding: 0 6px;
    outline: none;
    font-family: inherit;
}

.god-input:focus {
    border-color: var(--warning);
}

.god-mode-valid {
    color: var(--warning) !important;
}

/* Element states & animations */
@keyframes hardwareAssembly {
    0% { opacity: 0; transform: scale(1.1); }
    100% { opacity: 1; transform: scale(1); }
}

.hardware-piece {
    animation: hardwareAssembly 0.6s cubic-bezier(0.16, 1, 0.3, 1) both;
    transform-box: fill-box;
    transform-origin: center;
}

.draggable-falleba,
.draggable-piece {
    cursor: move;
    pointer-events: all;
    transition: filter 0.2s;
}

.draggable-falleba:hover .f-body,
.draggable-piece:hover .hardware-piece,
.draggable-piece:hover image {
    stroke: var(--primary);
    stroke-width: 2px;
    filter: drop-shadow(0 0 8px var(--primary-glow));
}

.falleba-blink-error {
    animation: blinkWarning 0.8s infinite alternate !important;
}

@keyframes blinkWarning {
    0% { fill: var(--danger) !important; opacity: 1; }
    100% { fill: var(--warning) !important; opacity: 0.5; }
}

.fo-wrapper {
    overflow: visible;
}

.draggable-falleba.dragging .f-hole {
    fill: var(--primary);
}

.coord-input-wrapper {
    overflow: visible;
}

/* Modals & Utils */
.no-screen {
    display: none;
}

.hidden {
    display: none !important;
}

.modal {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.modal-box {
    background: var(--bg-base);
    padding: 2rem;
    border-radius: var(--radius-lg);
    max-width: 600px;
    width: 90%;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--panel-border);
}

/* ============================================================
   RESUMEN DE OBRA — Aspecto de documento (siempre claro)
   Scoped to #project-summary-modal para no afectar nada más
   ============================================================ */
#project-summary-modal .modal-box {
    background: #f8fafc !important;
    color: #1e293b !important;
    border: 1px solid #e2e8f0 !important;
}

#project-summary-modal h3 {
    color: #10b981 !important;
}

#project-summary-modal .summary-header {
    border-bottom-color: #e2e8f0 !important;
}

#project-summary-modal .windows-container {
    background: transparent;
}

/* Tarjetas de ventana: uniformemente blancas */
#project-summary-modal .window-card {
    background: #ffffff !important;
    border: 1px solid #e2e8f0 !important;
    color: #1e293b !important;
}

/* Canvas del SVG: gris muy suave para que el aluminio contraste */
#project-summary-modal .window-card .card-canvas {
    background: #eef2f7 !important;
    border: 1px solid #dde3ed !important;
}

/* Cabecera de tarjeta */
#project-summary-modal .card-header {
    color: #10b981 !important;
    border-bottom-color: #e2e8f0 !important;
}

/* Botones del modal en claro */
#project-summary-modal .tech-btn {
    background: rgba(0,0,0,0.05) !important;
    color: #1e293b !important;
    border-color: #cbd5e1 !important;
}
#project-summary-modal .tech-btn:hover {
    background: var(--primary) !important;
    color: #fff !important;
}

.modal-box h3 {
    margin-top: 0;
    color: var(--text-main);
    font-size: 1.25rem;
    font-weight: 700;
}

#test-output {
    background: rgba(0,0,0,0.2);
    padding: 1rem;
    border-radius: var(--radius-sm);
    max-height: 400px;
    overflow: auto;
    font-family: 'Consolas', monospace;
    font-size: 0.85rem;
    color: var(--text-muted);
    margin: 1.5rem 0;
    border: 1px solid var(--panel-border);
    line-height: 1.5;
}

.modal-box button {
    width: 100%;
    background: var(--primary);
    color: #fff;
    border: none;
    padding: 0.8rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.2s;
}

.modal-box button:hover {
    background: var(--primary-hover);
}

/* Print Styles */
@media print {
    @page {
        size: A4;
        margin: 1cm;
    }

    body {
        height: auto;
        overflow: visible;
        background: white !important;
        color: black !important;
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }

    @page {
        margin: 10mm;
        size: A4 portrait;
    }

    body .tech-bg-overlay, body header, body #btn-tests, body #btn-copy, body .actions, body main, body #demo-caption-overlay {
        display: none !important;
    }

    /* Print Summary Modal */
    #project-summary-modal.modal {
        position: static !important;
        background: transparent !important;
        backdrop-filter: none !important;
        display: block !important;
        height: auto !important;
        overflow: visible !important;
    }

    #project-summary-modal {
        display: block !important;
    }

    .modal-box {
        border: none !important;
        box-shadow: none !important;
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important; /* Force auto height for printing */
        max-height: none !important;
        overflow: visible !important;
        padding: 0 !important;
        margin: 0 !important;
    }

    .no-print {
        display: none !important;
    }

    .only-print {
        display: block !important;
    }

    /* Enforce exactly 2 windows per A4 page maximizing area */
    .windows-container {
        display: block !important;
        overflow: visible !important;
        height: auto !important;
    }

    .window-card {
        page-break-inside: avoid !important;
        display: flex !important;
        gap: 0.5cm !important; /* Reduced from 0.8cm */
        height: auto !important;
        border-bottom: 2px solid #333 !important;
        padding-bottom: 15px !important;
        margin-bottom: 20px !important;
        overflow: visible !important; /* Fixed: allow table to show */
    }

    .watermark-tecnac {
        position: absolute;
        top: 10px;
        right: 10px;
        opacity: 0.2;
        font-weight: bold;
        pointer-events: none;
    }

    .card-canvas {
        /* Base proportions for 1-leaf row layout */
        flex: 0 0 8.5cm !important; /* Reduced from 10.5cm to compact */
        height: auto !important;
        min-height: 350px !important;
        border: 1px solid #000 !important;
        background: #fff !important;
        position: relative !important; /* Fixed: allows absolute handle positioning */
    }

    /* Stacked layout specifics to avoid clipping */
    .card-2leaves .card-canvas {
        flex: 0 0 7.5cm !important; /* Shorter draw area in stacked mode */
        width: 100% !important;
        min-height: 7.5cm !important;
    }

    .card-details {
        flex: 1 !important;
        padding: 0 10px !important;
        display: flex !important;
        flex-direction: column !important;
        overflow: visible !important;
    }

    .card-details table td {
        padding: 6px 0 !important;
        border-bottom: 1px solid #cbd5e1 !important;
        color: #000 !important;
    }


    .card-header {
        font-size: 14pt !important;
        font-weight: bold !important;
        color: #000 !important;
        margin-bottom: 10px !important;
        border-bottom: 1px solid #eee !important;
        padding-bottom: 5px !important;
    }

    /* Se han removido las viejas reglas de .sidebar y .canvas-area porque main entero se oculta */

    /* Print SVGs solid */
    .hardware-piece, .draggable-falleba, .draggable-piece, rect, polygon, circle, line, text, g {
        animation: none !important;
        opacity: 1 !important;
        visibility: visible !important;
        filter: none !important;
    }

    polygon, rect {
        fill: #e9ecef !important;
        stroke: #333 !important;
        stroke-width: 0.5px !important;
    }

    text {
        fill: black !important;
        font-weight: bold !important;
    }

    image {
        display: block !important;
        opacity: 1 !important;
        visibility: visible !important;
    }
}

.summary-box {
    max-width: 900px;
    width: 95%;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
}

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

@media print {
    .windows-container {
        overflow: visible !important;
        height: auto !important;
        display: block !important;
    }
    .window-card {
        page-break-inside: avoid !important;
    }
}

.windows-container {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    padding-right: 16px;
}

.summary-actions {
    display: flex;
    gap: 10px;
}

.only-print {
    display: none;
}

.window-card {
    display: flex;
    gap: 1.5rem;
    background: rgba(0,0,0,0.15);
    border: 1px solid var(--panel-border);
    padding: 1rem;
    border-radius: var(--radius-md);
}

/* Summary modal: tarjetas siempre claras (documento de impresión) */
#project-summary-modal .window-card {
    background: #ffffff;
    border: 1px solid #e2e8f0;
    color: #1e293b;
}

#project-summary-modal .window-card .card-canvas {
    background: #f1f5f9;
    border: 1px solid #e2e8f0;
}

#project-summary-modal .card-header {
    color: #10b981;
}


.window-card .card-canvas {
    flex: 0 0 400px;
    display: flex;
    justify-content: center;
    align-items: center;
    border: 1px solid var(--panel-border);
    background: var(--bg-base);
    border-radius: var(--radius-sm);
    min-height: 350px;
    position: relative;
}

.window-card .card-canvas svg {
    width: 100%;
    height: 100%;
}

.window-card .card-details {
    flex: 1;
}

/* Dynamic Layouts */
.window-card.card-1leaf {
    flex-direction: row;
}

.window-card.card-2leaves {
    flex-direction: column;
}

@media print {
    .window-card {
        gap: 0.5cm !important;
        padding: 0.5cm !important;
        border: 1px solid #e2e8f0 !important;
        background: #fff !important;
        page-break-inside: avoid;
        display: flex !important;
    }
    /* Vertical layout for 1-leaf */
    .window-card.card-1leaf {
        flex-direction: row !important;
    }
    .window-card.card-1leaf .card-canvas {
        flex: 0 0 220px !important;
        min-height: 220px !important;
    }
    
    /* Horizontal/Stacked layout for 2-leaves */
    .window-card.card-2leaves {
        flex-direction: row !important; /* Force side-by-side to save vertical space! */
    }
    .window-card.card-2leaves .card-canvas {
        flex: 0 0 220px !important;
        width: auto !important;
        min-height: 220px !important;
    }
    .window-card.card-2leaves .card-details {
        width: 100% !important;
    }
}

.window-card.card-2leaves .card-canvas {
    flex: 0 0 300px; /* Shorter for horizontal stacking */
    width: 100%;
}

.window-card.card-2leaves .card-details {
    width: 100%;
}

.card-header {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 0.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid rgba(255,255,255,0.05);
}

.card-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-bottom: 15px;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.bom-card-item {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    padding: 0.1rem 0; /* Reduced from 0.2rem */
    border-bottom: 1px dotted var(--panel-border);
    font-size: 0.75rem; /* Slightly smaller for density */
    gap: 3px;
}

.bom-card-item span {
    flex: 1;
    line-height: 1.2;
}

.bom-card-item strong {
    white-space: nowrap;
    text-align: right;
}

/* Toast Notification (Automática) */
.toast-container {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 10000;
    pointer-events: none;
}

/* Toast Notification (Rediseño Minimalista) */
.toast-container {
    position: fixed;
    top: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 12000;
    pointer-events: none;
}

.toast-item-minimal {
    background: #10b981; /* Emerald 500 */
    color: white;
    padding: 0.8rem 2rem;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 600;
    box-shadow: 0 10px 30px rgba(16, 185, 129, 0.4);
    display: flex;
    flex-direction: column;
    align-items: center;
    animation: toastEnter 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
}

.toast-exit {
    animation: toastExit 0.4s ease-in forwards !important;
}

@keyframes toastEnter {
    0% { transform: translateY(-100px); opacity: 0; }
    100% { transform: translateY(0); opacity: 1; }
}

@keyframes toastExit {
    0% { transform: translateY(0) scale(1); opacity: 1; }
    100% { transform: translateY(-50px) scale(0.8); opacity: 0; }
}

.toast-title {
    text-transform: uppercase;
    letter-spacing: 1px;
}

.toast-sub {
    font-size: 0.85rem;
    opacity: 0.9;
    font-weight: 400;
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.1); }
    100% { transform: scale(1); }
}

/* Handle Render in Summary */
.handle-summary-render {
    margin-top: 15px;
    width: 2.8cm;
    height: 2.8cm;
    display: flex;
    align-items: center;
    justify-content: flex-start;
}

/* Posicionamiento unificado de la manilla para 1 y 2 hojas */
.card-2leaves .handle-summary-render {
    position: absolute;
    top: 50%;
    right: 15px;
    transform: translateY(-50%);
    margin-top: 0;
    justify-content: center;
}

.card-1leaf-handle {
    position: relative !important;
    margin-top: 15px !important;
    right: auto !important;
    top: auto !important;
    transform: none !important;
    align-self: flex-end;
    width: 3.5cm !important;
    height: 3.5cm !important;
}

.handle-summary-render img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    /* Soft shadow to give depth to the white render on white paper */
    filter: drop-shadow(0 4px 8px rgba(0,0,0,0.1));
}

/* --- MODO DEMO IA --- */

.btn-demo-glow {
    background: linear-gradient(135deg, #3b82f6, #10b981) !important;
    color: #fff !important;
    border: none !important;
    position: relative;
    overflow: hidden;
    animation: demoBtnPulse 2s infinite;
}

@keyframes demoBtnPulse {
    0% { box-shadow: 0 0 0 0 rgba(59, 130, 246, 0.7); }
    70% { box-shadow: 0 0 0 10px rgba(59, 130, 246, 0); }
    100% { box-shadow: 0 0 0 0 rgba(59, 130, 246, 0); }
}

#demo-caption-overlay {
    position: fixed;
    top: 60px; /* Just below header */
    left: 285px; /* Over config panel */
    right: 300px; /* Leave space for right tech panel */
    z-index: 11000;
    pointer-events: none;
    transition: all 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.demo-caption-hidden {
    top: -300px !important;
    opacity: 0;
}

.demo-caption-box {
    background: #333946;
    border: none;
    padding: 1rem 4rem;
    border-radius: 8px; /* Straight but soft */
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 5px 30px rgba(0,0,0,0.4);
    width: 100%;
    min-height: 60px; /* Thin top horizontal bar */
    position: relative;
    z-index: 5;
    margin-bottom: 30px;
}

.demo-teco-container {
    width: 200px;
    height: 200px;
    flex-shrink: 0;
    position: absolute;
    top: 40px;
    left: 20px; /* Desplazado a la derecha para no tapar la configuración */
    z-index: 10;
}

/* Duplicated #demo-teco-img and #demo-caption-text have been removed from here to reduce redundancy */

.demo-mute-btn {
    background: none;
    border: none;
    color: #fff;
    font-size: 1.5rem;
    cursor: pointer;
    margin-left: 15px;
    opacity: 0.6;
    transition: all 0.3s;
    pointer-events: auto !important; /* Permitir clic en el overlay */
    position: relative;
    z-index: 20;
}

.demo-mute-btn:hover {
    opacity: 1;
    transform: scale(1.1);
}

.demo-mute-btn.muted::after {
    content: "/";
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%) rotate(-45deg);
    color: #ff4757;
    font-weight: bold;
    font-size: 2rem;
}

#demo-teco-img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    filter: drop-shadow(0 4px 8px rgba(0,0,0,0.3));
    animation: tecoFloat 3s infinite ease-in-out;
}

@keyframes tecoFloat {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-8px) rotate(2deg); }
}

#demo-caption-text {
    color: #fff;
    font-size: 1.1rem;
    font-weight: 500;
    letter-spacing: 0.5px;
    white-space: normal;
    text-align: center;
}

/* Efecto de resaltado para elementos en demo */
.demo-highlight {
    outline: 3px solid var(--accent) !important;
    outline-offset: 4px;
    box-shadow: 0 0 20px var(--accent-glow) !important;
    animation: demoFocusPulse 1.5s infinite;
    z-index: 100 !important;
    position: relative;
}

@keyframes demoFocusPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.02); }
}

body.demo-active {
    cursor: wait;
}

body.demo-active * {
    /* pointer-events: none !important; */ /* Permitir algunos eventos si es necesario, pero mejor bloquear */
}

/* Permitir el botón de cancelar si se implementa */
.demo-stop-btn {
    pointer-events: all !important;
}

.demo-running-border {
    position: fixed;
    inset: 0;
    border: 4px solid var(--accent);
    z-index: 12000;
    pointer-events: none;
    opacity: 0.3;
    animation: borderBlink 2s infinite;
}

@keyframes borderBlink {
    0%, 100% { opacity: 0.1; }
    50% { opacity: 0.4; }
}

/* Ajuste para el resumen de proyecto (Scroll Interno para Demo) */
.summary-box {
    max-height: 85vh;
    overflow: hidden !important; /* Evitar scroll doble */
    display: flex;
    flex-direction: column;
}

.windows-container::-webkit-scrollbar {
    width: 8px;
}

.windows-container::-webkit-scrollbar-track {
    background: rgba(0,0,0,0.05);
}

.windows-container::-webkit-scrollbar-thumb {
    background: var(--accent);
    border-radius: 10px;
}

/* --- NUMPAD MODAL (Touch) --- */
.numpad-box {
    max-width: 320px;
    padding: 1.5rem;
    background: #1e293b;
    border: 2px solid var(--accent);
    box-shadow: 0 10px 40px rgba(0,0,0,0.6), 0 0 20px var(--accent-glow);
}


.numpad-display-wrapper {
    margin-bottom: 20px;
}

#numpad-display {
    width: 100%;
    font-size: 2rem;
    text-align: right;
    padding: 15px;
    background: rgba(0,0,0,0.4);
    border: 1px solid var(--panel-border);
    border-radius: 8px;
    color: #fff;
    letter-spacing: 2px;
}


.numpad-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
}

.numpad-btn {
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--panel-border);
    color: #fff;
    font-size: 1.5rem;
    font-weight: 600;
    border-radius: 10px;
    padding: 18px 0;
    cursor: pointer;
    transition: all 0.1s;
    user-select: none;
}

.numpad-btn:active {
    transform: scale(0.95);
    background: var(--accent);
    border-color: var(--accent);
    color: #000;
}

.numpad-action {
    background: rgba(239, 68, 68, 0.1);
    color: #fca5a5;
    border-color: rgba(239, 68, 68, 0.3);
}

.numpad-cancel-btn {
    flex: 1;
    background: transparent;
    color: var(--text-muted);
    border: 1px solid var(--panel-border);
    padding: 15px;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
}

.numpad-ok-btn {
    flex: 1;
    background: var(--accent);
    color: #000;
    border: none;
    padding: 15px;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    box-shadow: 0 4px 15px var(--accent-glow);
}

/* --- MODE INFO PANEL --- */
.mode-info {
    margin: 0 0 8px 0;
    padding: 10px 12px;
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid rgba(245, 158, 11, 0.4);
    border-radius: var(--radius-sm);
    color: #92400e;
    font-size: 0.78rem;
    font-weight: 500;
    line-height: 1.4;
}
.mode-info[hidden] {
    display: none;
}

/* --- HANDLE PREVIEW CARD --- */
.handle-preview-card {
    position: absolute;
    top: 20px;
    right: 20px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 15px;
    width: 140px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0,0,0,0.3);
    z-index: 50;
}

.handle-preview-img-container {
    height: 100px;
    margin-top: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.handle-preview-img-container img {
    max-height: 100%;
    max-width: 100%;
    object-fit: contain;
}

.handle-preview-title {
    font-weight: 600;
    color: var(--accent);
    font-size: 13px;
    line-height: 1.2;
}

.handle-preview-subtitle {
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 4px;
}

/* --- DRAW WINDOW PROGRESSIVE ANIMATION --- */

@keyframes buildWindow {
    from {
        opacity: 0;
        transform: scale(0.98);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Base styles for the animation classes */
.draw-anim-frame,
.draw-anim-leaf,
.draw-anim-glass,
.draw-anim-dims,
.draw-anim-hw {
    animation-name: buildWindow;
    animation-duration: 0.35s;
    animation-fill-mode: both;
    animation-timing-function: ease-out;
    transform-origin: center;
}

/* Staggered delays */
.draw-anim-frame { animation-delay: 0.0s; }
.draw-anim-leaf  { animation-delay: 0.15s; }
.draw-anim-glass { animation-delay: 0.3s; }
.draw-anim-dims  { animation-delay: 0.45s; }
.draw-anim-hw    { animation-delay: 0.6s; }/* ==========================================
   MOBILE RESPONSIVE LAYOUT
   ========================================== */
@media (max-width: 900px) {
    body {
        overflow-y: auto !important;
    }

    main {
        display: flex !important;
        flex-direction: column !important;
        overflow: visible !important;
        height: auto !important;
        padding-bottom: 40px !important;
    }

    /* Unpack sidebar for flex reordering */
    .sidebar {
        display: contents !important;
    }

    /* Give individual panels their own box styling */
    .sidebar > .panel-section, 
    #mode-info-panel, 
    #panel-lista-corte,
    .sidebar > div[style*="margin-top"] {
        background: var(--panel-bg);
        backdrop-filter: var(--glass-blur);
        -webkit-backdrop-filter: var(--glass-blur);
        border: 1px solid var(--panel-border);
        border-radius: var(--radius-lg);
        padding: 15px;
        margin-bottom: 15px;
        width: 100%;
        box-sizing: border-box;
    }

    /* 1. Selector de modo */
    .sidebar > .panel-section:nth-child(1) { order: 1; }
    #mode-info-panel { order: 2; }
    
    /* 2. Panel de configuracin y medidas */
    #panel-config { order: 3; }
    #panel-components { order: 4; }
    #panel-tecnico { order: 5; }
    
    /* 3. Visualizacin/dibujo de la ventana */
    .canvas-area { 
        order: 6; 
        width: 100%; 
        box-sizing: border-box; 
        min-height: 400px; 
        padding: 15px !important;
        margin-bottom: 15px;
        display: flex;
        flex-direction: column;
        justify-content: flex-start !important;
    }

    /* 4. Resultado / listado de herrajes */
    #panel-lista-corte { order: 7; }
    
    /* 5. Botones finales de accin */
    .sidebar > div[style*="margin-top"] { 
        order: 8; 
    }

    .sidebar > .panel-section.no-screen {
        display: none !important;
    }

    /* Adapt SVG safely */
    .canvas-area svg {
        max-width: 100% !important;
        height: auto !important;
    }

    /* Cabecera compacta */
    header {
        flex-direction: column;
        height: auto !important;
        padding: 15px 10px !important;
        gap: 15px;
    }

    .header-left .main-logo {
        height: 40px !important;
    }

    .actions {
        width: 100%;
        flex-wrap: wrap;
        justify-content: center;
        gap: 8px;
    }

    .tech-btn {
        min-height: 44px !important; /* Touch friendly */
        padding: 10px 15px;
        font-size: 0.85rem;
        flex: 1 1 calc(50% - 8px); /* Dos columnas para que no se apelotonen */
        text-align: center;
        white-space: normal; /* Permitir 2 lneas de texto en el botn si es largo */
    }

    /* Proyecto top bar flow */
    .proyecto-top-bar {
        position: relative !important;
        top: 0 !important;
        left: 0 !important;
        width: 100%;
        margin-bottom: 20px;
    }
    
    .proyecto-top-bar .form-group.row {
        flex-direction: column;
        gap: 15px !important;
        align-items: stretch !important;
    }

    /* Controles tctiles amplios */
    input[type="number"], 
    input[type="text"], 
    select {
        min-height: 44px !important;
        font-size: 16px !important; /* Previene zoom automtico en iOS */
    }

    /* Marca de agua adaptada */
    .watermark-main-panel {
        background-size: 70%;
    }

    #drawing-wrapper {
        min-height: 400px !important;
        flex: 1;
    }

    /* --- DEMO IA MÓVIL --- */
    #demo-caption-overlay {
        top: 15px !important;
        left: 15px !important;
        right: 15px !important;
        width: auto !important;
        align-items: center !important;
    }

    .demo-caption-box {
        padding: 1rem 1.5rem !important;
        min-height: auto !important;
        width: 100% !important;
        margin-bottom: 0 !important;
        box-sizing: border-box !important;
    }

    #demo-caption-text {
        font-size: 0.95rem !important;
    }

    .demo-teco-container {
        position: relative !important;
        top: -15px !important;
        left: auto !important;
        width: 100px !important;
        height: 100px !important;
        margin: 0 auto !important;
    }
}

/* --- EASTER EGG UNIT TOGGLE --- */
.unit-toggle, .unit-toggle-static {
    cursor: pointer;
    border-bottom: 1px dotted rgba(0,0,0,0.4);
    transition: color 0.3s, border-color 0.3s;
}
.unit-toggle:hover, .unit-toggle-static:hover {
    color: var(--primary);
    border-bottom-color: var(--primary);
}
.unit-toggle-svg {
    transition: fill 0.3s;
}
.unit-toggle-svg:hover {
    fill: var(--primary) !important;
}

/* Image Zoom Effect */
.zoom-overlay {
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(5px);
    z-index: 100000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}
.zoom-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.zoomed-image-clone {
    position: fixed;
    z-index: 100001;
    transition: all 0.4s cubic-bezier(0.25, 1, 0.5, 1);
    cursor: zoom-out;
    border-radius: var(--radius-md);
    box-shadow: 0 20px 40px rgba(0,0,0,0.5);
    object-fit: contain;
}

.zoomable-img {
    cursor: zoom-in;
    transition: transform 0.2s ease, filter 0.2s ease;
}
.zoomable-img:hover {
    transform: scale(1.08);
    filter: drop-shadow(0 4px 6px rgba(0,0,0,0.1));
}


/* --- SPLASH SCREEN --- */
#splash-screen {
    position: fixed;
    inset: 0;
    background: #0a0f1c;
    z-index: 999999;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    transition: opacity 0.8s cubic-bezier(0.25, 1, 0.5, 1), visibility 0.8s;
}

#splash-screen.zoom-through {
    background-color: transparent;
    pointer-events: none;
    transition: background-color 0.8s ease;
}

#splash-screen.zoom-through .splash-logo {
    animation: flyThrough 0.9s cubic-bezier(0.5, 0, 0.2, 1) forwards !important;
    filter: none !important;
    will-change: transform, opacity;
}

#splash-screen.zoom-through .splash-spinner {
    opacity: 0 !important;
    transition: opacity 0.2s;
}

@keyframes flyThrough {
    0% { transform: scale(1); opacity: 1; }
    40% { opacity: 1; }
    100% { transform: scale(10); opacity: 0; }
}

.splash-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
}

.splash-logo {
    width: 350px;
    max-width: 80vw;
    filter: drop-shadow(0 10px 30px rgba(14, 165, 233, 0.4));
    transform: scale(0.95);
    animation: splashLogoEnter 1.2s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
}

.splash-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid rgba(255,255,255,0.1);
    border-top-color: #0ea5e9;
    border-radius: 50%;
    opacity: 0;
    animation: spin 1s linear infinite, fadeIn 0.5s ease forwards 0.5s;
}

@keyframes splashLogoEnter {
    0% { transform: scale(0.8) translateY(20px); opacity: 0; }
    100% { transform: scale(1) translateY(0); opacity: 1; }
}

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

@keyframes fadeIn {
    to { opacity: 1; }
}