/* ==========================================================================
   AprilTag Generator Application & Unified Design System
   ========================================================================== */

body.generator-page {
    background-color: var(--bg-dark);
    min-height: 100vh;
}

.generator-workspace-section {
    max-width: 1400px;
    margin: 0 auto;
    padding: 105px 24px 60px;
}

.generator-workspace-wrapper {
    background: var(--bg-card);
    border: 1px solid var(--border-rugged);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-rugged);
    overflow: hidden;
}

/* Generator Layout */
.app-layout {
    position: relative;
    z-index: 10;
    display: grid;
    grid-template-columns: 420px 1fr;
    min-height: 840px;
}

.sidebar {
    background: var(--bg-card, #121820);
    border-right: 1px solid var(--border-subtle, #2a3441);
    padding: 1.75rem 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    overflow-y: auto;
}

.sidebar .section-header {
    text-align: left;
    margin-bottom: 0;
}

.sidebar .section-header h2 {
    font-size: 1.25rem;
    color: #FFFFFF;
    margin-bottom: 0.35rem;
}

.sidebar .section-header p {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.control-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.control-label {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.825rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted, #8c9ba8);
}

.control-label .value-pill {
    font-family: var(--font-mono, monospace);
    color: var(--color-orange, #ff6b00);
    font-size: 0.8rem;
}

/* Inputs & Form Controls */
input[type="text"],
input[type="number"],
select {
    background: var(--bg-darker, #1b222c);
    border: 1px solid var(--border-subtle, #2a3441);
    color: var(--text-primary, #f0f4f8);
    padding: 0.65rem 0.85rem;
    border-radius: 6px;
    font-family: var(--font-body, sans-serif);
    font-size: 0.95rem;
    outline: none;
    transition: border-color 0.2s;
    width: 100%;
}

input[type="text"]:focus,
input[type="number"]:focus,
select:focus {
    border-color: var(--color-orange, #ff6b00);
}

.id-stepper {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.btn-step {
    background: var(--bg-darker, #1b222c);
    border: 1px solid var(--border-subtle, #2a3441);
    color: var(--text-primary, #f0f4f8);
    width: 48px;
    height: 48px;
    border-radius: 6px;
    font-size: 1.25rem;
    font-weight: 700;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.15s ease;
}

.btn-step:hover {
    background: var(--border-subtle, #2a3441);
    border-color: var(--color-orange, #ff6b00);
    color: var(--color-orange, #ff6b00);
}

.preset-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(70px, 1fr));
    gap: 0.4rem;
}

.btn-pill {
    background: var(--bg-darker, #1b222c);
    border: 1px solid var(--border-subtle, #2a3441);
    color: var(--text-muted, #8c9ba8);
    padding: 0.5rem;
    min-height: 48px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    font-size: 0.85rem;
    font-family: var(--font-mono, monospace);
    font-weight: 600;
    cursor: pointer;
    text-align: center;
    transition: all 0.15s ease;
}

.btn-pill:hover,
.btn-pill.active {
    background: rgba(255, 107, 0, 0.15);
    border-color: var(--color-orange, #ff6b00);
    color: var(--text-primary, #f0f4f8);
}

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

.size-grid-3 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
}

.size-grid-3 .card-featured {
    grid-column: 1 / -1;
    background: linear-gradient(135deg, rgba(255, 107, 0, 0.08) 0%, var(--bg-darker, #1b222c) 100%);
    border-color: rgba(255, 107, 0, 0.35);
    padding: 0.75rem 0.85rem;
}

.size-grid-3 .card-featured.active {
    background: linear-gradient(135deg, rgba(255, 107, 0, 0.16) 0%, rgba(27, 34, 44, 0.95) 100%);
    border-color: var(--color-orange, #ff6b00);
}

.btn-size-card {
    background: var(--bg-darker, #1b222c);
    border: 1px solid var(--border-subtle, #2a3441);
    border-radius: 6px;
    padding: 0.65rem 0.75rem;
    min-height: 48px;
    cursor: pointer;
    text-align: left;
    transition: all 0.2s ease;
}

.btn-size-card:hover {
    border-color: rgba(255, 107, 0, 0.5);
}

.btn-size-card.active {
    background: rgba(255, 107, 0, 0.12);
    border-color: var(--color-orange, #ff6b00);
}

.size-name {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 6px;
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-primary, #f0f4f8);
    margin-bottom: 2px;
}

.size-desc {
    font-size: 0.75rem;
    color: var(--text-muted, #8c9ba8);
    font-family: var(--font-mono, monospace);
    line-height: 1.3;
}

.badge-recommended {
    font-size: 0.65rem;
    background: var(--color-orange, #ff6b00);
    color: #000;
    font-weight: 700;
    padding: 1px 5px;
    border-radius: 3px;
    white-space: nowrap;
}

/* Toggles */
.toggle-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.5rem 0;
    min-height: 48px;
    font-size: 0.85rem;
    color: var(--text-primary, #f0f4f8);
    cursor: pointer;
}

.toggle-switch {
    position: relative;
    width: 40px;
    height: 22px;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0; left: 0; right: 0; bottom: 0;
    background-color: var(--bg-darker, #1b222c);
    border: 1px solid var(--border-subtle, #2a3441);
    transition: 0.2s;
    border-radius: 20px;
}

.toggle-slider:before {
    position: absolute;
    content: "";
    height: 16px;
    width: 16px;
    left: 2px;
    bottom: 2px;
    background-color: var(--text-muted, #8c9ba8);
    transition: 0.2s;
    border-radius: 50%;
}

input:checked + .toggle-slider {
    background-color: var(--color-orange, #ff6b00);
    border-color: var(--color-orange, #ff6b00);
}

input:checked + .toggle-slider:before {
    transform: translateX(18px);
    background-color: #000;
}

.actions-card {
    background: var(--bg-darker, #1b222c);
    border: 1px solid var(--border-subtle, #2a3441);
    border-radius: 8px;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
    margin-top: auto;
}

/* Preview Workspace & A4 Sheet */
.preview-workspace {
    padding: 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    overflow-y: auto;
    gap: 1.5rem;
    background: radial-gradient(circle at center, rgba(30, 41, 59, 0.4) 0%, transparent 80%);
}

.preview-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    max-width: 680px;
    background: var(--bg-card, #121820);
    border: 1px solid var(--border-subtle, #2a3441);
    border-radius: 8px;
    padding: 0.5rem 1rem;
}

.preview-status {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-size: 0.85rem;
    font-family: var(--font-mono, monospace);
    color: var(--text-muted, #8c9ba8);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #00e676;
    box-shadow: 0 0 8px #00e676;
}

.zoom-controls {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.btn-zoom {
    background: var(--bg-darker, #1b222c);
    border: 1px solid var(--border-subtle, #2a3441);
    color: var(--text-primary, #f0f4f8);
    padding: 0.4rem 0.65rem;
    min-height: 48px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    font-size: 0.78rem;
    font-family: var(--font-mono, monospace);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s ease;
}

.btn-zoom:hover {
    border-color: var(--color-orange, #ff6b00);
}

.sheet-viewport {
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: auto;
    padding-bottom: 2rem;
}

.a4-sheet {
    background: #ffffff;
    color: #111111;
    width: 210mm;
    min-width: 210mm;
    height: 297mm;
    min-height: 297mm;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(255, 255, 255, 0.1);
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
    padding: 18mm 20mm 15mm 20mm;
    box-sizing: border-box;
    transform-origin: top center;
    transition: transform 0.2s ease;
}

.sheet-header {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    border-bottom: 1.5px solid #111;
    padding-bottom: 3mm;
    font-family: "Inter", sans-serif;
}

.sheet-logo-group {
    display: flex;
    align-items: center;
    gap: 3mm;
}

.sheet-logo-group img {
    width: 9mm;
    height: 9mm;
    border-radius: 2mm;
    object-fit: contain;
    display: block;
}

.sheet-brand-name {
    font-size: 13pt;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: #111;
    line-height: 1.1;
}

.sheet-brand-name .accent {
    color: var(--color-orange, #ff6b00);
}

.sheet-brand-sub {
    font-size: 7pt;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: #555;
    font-weight: 600;
}

.sheet-meta-group {
    text-align: right;
    font-size: 7.5pt;
    line-height: 1.35;
    color: #333;
    font-family: "JetBrains Mono", monospace;
}

.sheet-meta-bold {
    font-weight: 700;
    color: #000;
}

.sheet-tag-stage {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
    margin: auto 0;
}

.direction-indicator {
    display: flex;
    align-items: center;
    gap: 1.5mm;
    font-size: 8pt;
    font-weight: 800;
    font-family: "JetBrains Mono", monospace;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: #111;
    margin-bottom: 5.5mm;
}

.direction-indicator svg {
    width: 4mm;
    height: 4mm;
}

.tag-bounding-box {
    position: relative;
    background: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px dashed #999;
}

.crop-mark {
    position: absolute;
    width: 6mm;
    height: 6mm;
    pointer-events: none;
}

.crop-tl { top: calc(10% - 6mm); left: calc(10% - 6mm); border-right: 1.5px solid #000; border-bottom: 1.5px solid #000; }
.crop-tr { top: calc(10% - 6mm); right: calc(10% - 6mm); border-left: 1.5px solid #000; border-bottom: 1.5px solid #000; }
.crop-bl { bottom: calc(10% - 6mm); left: calc(10% - 6mm); border-right: 1.5px solid #000; border-top: 1.5px solid #000; }
.crop-br { bottom: calc(10% - 6mm); right: calc(10% - 6mm); border-left: 1.5px solid #000; border-top: 1.5px solid #000; }

.apriltag-svg {
    display: block;
    image-rendering: pixelated;
    shape-rendering: crispEdges;
}

.sheet-footer {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 2.5mm;
    border-top: 1.5px solid #111;
    padding-top: 3mm;
}

.footer-info-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 7.5pt;
    font-family: "JetBrains Mono", monospace;
    color: #222;
}

.footer-tag-badge {
    font-size: 9pt;
    font-weight: 800;
    color: #000;
}

.calibration-bar-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5mm;
    background: #f7f9fa;
    border: 1px solid #d0d7de;
    border-radius: 2mm;
    padding: 2mm 3mm;
    width: 100%;
}

.calibration-main-title {
    font-size: 6.5pt;
    font-weight: 800;
    letter-spacing: 0.06em;
    color: #222;
    text-transform: uppercase;
    font-family: "Inter", sans-serif;
}

.calibration-dual-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6mm;
    width: 100%;
    max-width: 150mm;
    align-items: center;
}

.ruler-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.8mm;
    background: #ffffff;
    border: 1px solid #ccd2d8;
    border-radius: 1.5mm;
    padding: 1.5mm 2mm;
}

.ruler-card-title {
    font-size: 6pt;
    font-weight: 700;
    letter-spacing: 0.03em;
    color: #444;
    font-family: "JetBrains Mono", monospace;
    text-transform: uppercase;
}

.ruler-metric-svg { width: 50mm; height: 7mm; display: block; }
.ruler-imperial-svg { width: 50.8mm; height: 7mm; display: block; }

.printer-notice {
    font-size: 6.5pt;
    color: #555;
    text-align: center;
    font-family: "Inter", sans-serif;
    font-weight: 500;
}

/* Toast Notification */
.toast-notification {
    position: fixed;
    bottom: 2rem; right: 2rem;
    background: var(--bg-darker, #1b222c);
    border: 1px solid var(--color-orange, #ff6b00);
    color: var(--text-primary, #f0f4f8);
    padding: 0.75rem 1.25rem;
    border-radius: 8px;
    font-family: var(--font-mono, monospace);
    font-size: 0.85rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    z-index: 9999;
    display: flex;
    align-items: center;
    gap: 0.6rem;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.3s ease;
    pointer-events: none;
}

.toast-notification.active {
    opacity: 1;
    transform: translateY(0);
}

@media (max-width: 600px) {
    .preset-grid {
        grid-template-columns: repeat(auto-fit, minmax(65px, 1fr)) !important;
    }
    .preview-workspace {
        padding: 1rem 0.5rem !important;
    }
    .preview-toolbar {
        flex-direction: column;
        gap: 0.5rem;
        align-items: stretch;
    }
    .preview-status, .zoom-controls {
        justify-content: center;
    }
    .toast-notification {
        left: 1rem; right: 1rem; bottom: 1rem;
        text-align: center;
        justify-content: center;
    }
}


/* Print Stylesheet for AprilTag Generator (Direct A4 1:1 Scale Printing) */
@media print {
    @page {
        size: A4 portrait;
        margin: 0;
    }

    html, body {
        background: #ffffff !important;
        color: #000000 !important;
        margin: 0 !important;
        padding: 0 !important;
        width: 210mm !important;
        height: auto !important;
        overflow: visible !important;
    }

    /* Hide UI Chrome during printing */
    .bg-grid,
    .grid-overlay,
    header,
    .navbar-container,
    footer,
    .site-footer,
    .generator-intro-section,
    .sidebar,
    .preview-toolbar,
    .toast-notification,
    .mobile-menu-toggle {
        display: none !important;
        visibility: hidden !important;
    }

    .generator-workspace-wrapper,
    .generator-workspace-section,
    .generator-main,
    .app-layout,
    .preview-workspace,
    .sheet-viewport {
        display: block !important;
        position: static !important;
        margin: 0 !important;
        padding: 0 !important;
        width: 210mm !important;
        background: none !important;
        border: none !important;
        box-shadow: none !important;
        overflow: visible !important;
    }

    .a4-sheet {
        visibility: visible !important;
        display: flex !important;
        box-shadow: none !important;
        margin: 0 !important;
        margin-bottom: 0 !important;
        width: 210mm !important;
        height: 297mm !important;
        min-width: 210mm !important;
        min-height: 297mm !important;
        max-width: 210mm !important;
        max-height: 297mm !important;
        transform: none !important;
        page-break-inside: avoid !important;
        break-inside: avoid !important;
        page-break-after: always !important;
        break-after: page !important;
        box-sizing: border-box !important;
        padding: 18mm 20mm 15mm 20mm !important;
        -webkit-print-color-adjust: exact !important;
        print-color-adjust: exact !important;
    }

    .a4-sheet:last-child {
        page-break-after: auto !important;
        break-after: auto !important;
    }

    .a4-sheet * {
        visibility: visible !important;
        -webkit-print-color-adjust: exact !important;
        print-color-adjust: exact !important;
    }
}


@media (max-width: 900px) {
    /* Generator layout adjustments */
    .generator-workspace-section {
        padding: 95px 16px 50px;
    }
    .app-layout {
        display: flex;
        flex-direction: column-reverse;
        min-height: auto;
    }
    .sidebar {
        max-height: none;
        border-right: none;
        border-top: 1px solid var(--border-subtle, #2a3441);
        padding: 1.5rem 1.25rem;
    }
    .preview-workspace {
        padding: 1.5rem 1rem;
        min-height: auto;
    }
    .sheet-viewport {
        padding-bottom: 0.5rem;
        overflow-x: auto;
    }
}