@import url("https://fonts.cdnfonts.com/css/old-london");

html {
    scroll-behavior: smooth;
}

body {
    --bg: #EDE1C9;
    --panel: #E3D6BD;
    --panel-strong: #D8C6A3;
    --panel-soft: #D8C6A3;
    --text: #3E2E24;
    --muted: #7A5B45;
    --border: #5A4638;
    --accent: #C92A2A;
    --accent-strong: #5A4638;
    --warning: #7A5B45;
    --danger: #C92A2A;
    --shadow: 0 18px 38px rgba(62, 46, 36, 0.12);
    /* Keep the pixel-art background subtle so it decorates the page without competing with the UI. */
    background:
        url("assets/minecraft-pattern-v2.svg?v=1775584917000000000") 0 0 / 240px 240px repeat,
        radial-gradient(circle at top, rgba(186, 43, 43, 0.06), transparent 34%),
        linear-gradient(180deg, #F6F1E8 0%, #F3EDE3 100%);
    color: var(--text);
    font-family: "Courier New", Courier, monospace;
    margin: 0;
    min-height: 100vh;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 28px;
}

header {
    margin-bottom: 32px;
    text-align: center;
}

main {
    display: grid;
    gap: 28px;
}

.hidden-before-upload {
    display: none;
}

.app-workspace {
    display: grid;
    gap: 26px;
}

.welcome-state {
    display: grid;
    place-items: center;
}

.welcome-card {
    background: rgba(243, 237, 227, 0.97);
    border: 1px solid rgba(92, 68, 51, 0.18);
    border-radius: 24px;
    box-shadow: 0 24px 48px rgba(92, 68, 51, 0.1);
    max-width: 920px;
    padding: 36px;
    text-align: center;
}

.welcome-eyebrow {
    color: var(--accent);
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    margin: 0 0 12px;
    text-transform: uppercase;
}

.welcome-card h2 {
    font-size: clamp(2rem, 4vw, 2.8rem);
    line-height: 1.12;
    margin: 0 0 14px;
}

.welcome-copy {
    font-size: 1rem;
    margin: 0 auto 24px;
    max-width: 680px;
}

.welcome-upload-spotlight {
    background: linear-gradient(180deg, rgba(230, 215, 184, 0.5), rgba(230, 215, 184, 0.72));
    border: 1px solid rgba(92, 68, 51, 0.14);
    border-radius: 22px;
    box-shadow: inset 0 0 0 1px rgba(243, 237, 227, 0.45);
    margin: 0 auto 28px;
    max-width: 640px;
    padding: 22px;
}

.welcome-upload-inner {
    display: grid;
    gap: 12px;
    justify-items: center;
}

.welcome-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
}

.welcome-upload-label {
    color: var(--accent);
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    margin: 0;
    text-transform: uppercase;
}

.welcome-upload-note {
    font-size: 0.92rem;
    margin: 0;
    max-width: 520px;
}

.welcome-steps {
    display: grid;
    gap: 14px;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    margin-bottom: 0;
    text-align: left;
}

.welcome-step {
    background: rgba(230, 215, 184, 0.54);
    border: 1px solid rgba(92, 68, 51, 0.16);
    border-radius: 18px;
    display: grid;
    gap: 12px;
    grid-template-columns: auto 1fr;
    padding: 18px;
}

.welcome-step-number {
    align-items: center;
    background: rgba(186, 43, 43, 0.1);
    border: 1px solid rgba(186, 43, 43, 0.18);
    border-radius: 999px;
    color: var(--accent);
    display: inline-flex;
    font-size: 0.95rem;
    font-weight: 700;
    height: 34px;
    justify-content: center;
    width: 34px;
}

.welcome-step h3 {
    font-size: 1rem;
    margin: 0 0 6px;
}

.welcome-step p {
    font-size: 0.94rem;
    margin: 0;
}

.welcome-upload-button {
    align-items: center;
    background: var(--panel-strong);
    border: 1px solid var(--border);
    border-radius: 14px;
    box-shadow: 0 10px 24px rgba(92, 68, 51, 0.08);
    color: var(--text);
    cursor: pointer;
    display: inline-flex;
    font-size: 1.02rem;
    font-weight: 700;
    justify-content: center;
    min-height: 56px;
    min-width: 280px;
    padding: 0 28px;
    transition: transform 0.18s ease, background-color 0.18s ease, border-color 0.18s ease;
}

.welcome-upload-button:hover {
    background: var(--panel-soft);
    border-color: var(--accent);
    transform: translateY(-1px);
}

h1 {
    font-size: clamp(2.2rem, 5vw, 3.4rem);
    margin-bottom: 12px;
}

.site-title {
    background: transparent;
    box-shadow: none;
    font-family: "Old London", serif;
    font-size: 64px;
    font-weight: 400;
    letter-spacing: 2px;
}

.site-subtitle {
    margin: 0 auto;
    max-width: 720px;
}

.site-helper-note {
    background: linear-gradient(180deg, rgba(227, 214, 189, 0.72), rgba(230, 215, 184, 0.5));
    border: 1px solid rgba(92, 68, 51, 0.14);
    border-radius: 999px;
    box-shadow: inset 0 1px 0 rgba(255, 248, 235, 0.55);
    color: #8A6A52;
    display: inline-block;
    font-size: 0.9rem;
    margin: 10px auto 0;
    max-width: min(100%, 660px);
    padding: 8px 16px;
}

h1,
h2,
h3,
h4,
h5,
h6,
.panel-summary-title,
.section-materials-header,
.focus-label {
    font-family: "Old London", serif;
}

h2,
h3,
h4 {
    color: var(--text);
}

p {
    color: var(--muted);
    line-height: 1.5;
}

.control-panel {
    background: rgba(243, 237, 227, 0.96);
    border: 1px solid rgba(92, 68, 51, 0.22);
    border-radius: 18px;
    box-shadow: var(--shadow);
    display: grid;
    gap: 18px;
    padding: 22px;
}

.setup-grid {
    align-items: stretch;
    grid-auto-flow: row;
    display: grid;
    gap: 18px;
    grid-template-columns: 1fr;
}

.setup-card {
    display: grid;
    gap: 14px;
    min-height: 100%;
    min-width: 0;
}

.setup-card {
    background: rgba(230, 215, 184, 0.54);
    border: 1px solid rgba(92, 68, 51, 0.16);
    border-radius: 18px;
    padding: 18px;
}

.setup-card-upload {
    grid-column: span 1;
}

.setup-card-header h3 {
    font-size: 1.08rem;
    margin: 0 0 6px;
}

.setup-card-header p {
    font-size: 0.94rem;
    margin: 0;
}

.setup-fields {
    display: grid;
    gap: 14px;
    min-width: 0;
}

.field-group {
    display: grid;
    gap: 7px;
    min-width: 0;
}

label {
    color: var(--muted);
    display: block;
    font-size: 0.92rem;
    font-weight: 600;
    margin-bottom: 0;
}

select,
input[type="text"],
input[type="file"],
button {
    background: var(--panel-strong);
    border: 1px solid var(--border);
    border-radius: 10px;
    color: var(--text);
    font: inherit;
}

select,
input[type="text"],
input[type="file"] {
    padding: 10px 12px;
}

input[type="range"] {
    accent-color: var(--accent);
}

button {
    cursor: pointer;
    min-height: 44px;
    padding: 9px 14px;
    transition: transform 0.18s ease, background-color 0.18s ease, border-color 0.18s ease;
}

button:hover {
    background: var(--panel-soft);
    border-color: var(--accent);
    transform: translateY(-1px);
}

#pixelCanvas {
    background: #F3EDE3;
    border: 2px solid rgba(92, 68, 51, 0.45);
    border-radius: 14px;
    display: block;
    image-rendering: pixelated;
    image-rendering: crisp-edges;
    margin: 0;
}

.viewer-controls {
    align-items: center;
    background: rgba(243, 237, 227, 0.94);
    border: 1px solid rgba(92, 68, 51, 0.18);
    border-radius: 16px;
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    justify-content: space-between;
    margin-bottom: 18px;
    padding: 16px 18px;
}

.viewer-controls > * {
    min-width: 0;
}

#zoomLevel {
    color: var(--accent);
    font-weight: 700;
}

.compact-field {
    min-width: 190px;
}

.button-group {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.button-group button {
    min-width: 58px;
}

.build-mode-card {
    display: none;
}

.workspace {
    align-items: start;
    display: grid;
    gap: 22px;
    grid-template-columns: minmax(0, 1fr);
}

.workspace-shell {
    background: rgba(243, 237, 227, 0.78);
    border: 1px solid rgba(92, 68, 51, 0.18);
    border-radius: 22px;
    box-shadow: 0 14px 26px rgba(92, 68, 51, 0.06);
    display: grid;
    gap: 18px;
    padding: 22px;
}

.workspace-heading {
    align-items: end;
    display: flex;
    justify-content: space-between;
    gap: 16px;
}

.workspace-heading h2 {
    font-size: 1.5rem;
    margin: 0 0 6px;
}

.workspace-heading p {
    margin: 0;
    max-width: 720px;
}

.project-info-bar {
    background: rgba(230, 215, 184, 0.56);
    border: 1px solid rgba(92, 68, 51, 0.16);
    border-radius: 18px;
    box-shadow: 0 12px 24px rgba(92, 68, 51, 0.07);
    display: grid;
    gap: 12px 16px;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    margin-top: 18px;
    padding: 14px 16px;
}

.project-info-item {
    display: grid;
    gap: 4px;
    min-width: 0;
}

.project-info-label {
    color: var(--muted);
    font-size: 0.74rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.project-info-value {
    color: var(--text);
    font-size: 0.98rem;
    font-weight: 700;
    min-width: 0;
    overflow-wrap: anywhere;
}

.viewer-column {
    display: grid;
    gap: 20px;
    min-width: 0;
}

.comparison-row {
    display: grid;
    gap: 18px;
    grid-template-columns: 1fr;
}

.viewer-card,
.sections-panel {
    background: rgba(243, 237, 227, 0.96);
    border: 1px solid rgba(92, 68, 51, 0.18);
    border-radius: 20px;
    box-shadow: 0 10px 22px rgba(92, 68, 51, 0.07);
    padding: 18px;
}

.viewer-card {
    transition: opacity 0.2s ease, transform 0.2s ease, border-color 0.2s ease;
}

.sections-panel {
    contain-intrinsic-size: 320px;
    content-visibility: auto;
}

/* Debug isolation mode:
   Temporarily flatten lower-workspace hover/paint effects so we can confirm whether
   lower interactive rendering is the source of cursor-position-dependent choppy scroll. */
body.debug-lite-lower-workspace .workspace-shell,
body.debug-lite-lower-workspace .viewer-card,
body.debug-lite-lower-workspace .workspace-legend-panel,
body.debug-lite-lower-workspace .sections-panel {
    box-shadow: none;
}

body.debug-lite-lower-workspace .viewer-card,
body.debug-lite-lower-workspace .workspace button,
body.debug-lite-lower-workspace .grid-cell {
    transition: none !important;
}

body.debug-lite-lower-workspace .viewer-card.emphasized,
body.debug-lite-lower-workspace .grid-cell.selected-cell,
body.debug-lite-lower-workspace .grid-cell.active-section-cell,
body.debug-lite-lower-workspace .grid-cell.focused-section-cell,
body.debug-lite-lower-workspace .grid-cell.build-row-cell {
    box-shadow: none;
}

body.debug-lite-lower-workspace .grid-cell.active-section-cell,
body.debug-lite-lower-workspace .grid-cell.focused-section-cell,
body.debug-lite-lower-workspace .grid-cell.build-row-cell,
body.debug-lite-lower-workspace .grid-cell.selected-cell {
    background-image: none;
    outline-width: 1px;
}

body.debug-lite-lower-workspace .grid-cell.build-row-cell::after,
body.debug-lite-lower-workspace .section-overlay {
    display: none;
}

body.debug-lite-lower-workspace .viewer-container {
    background: #F3EDE3;
}

.collapsible-panel {
    overflow: hidden;
    padding: 0;
}

.panel-summary {
    align-items: center;
    cursor: pointer;
    display: flex;
    gap: 12px;
    justify-content: space-between;
    list-style: none;
    padding: 16px 18px;
}

.panel-summary::-webkit-details-marker {
    display: none;
}

.panel-summary::after {
    color: var(--muted);
    content: "+";
    font-size: 1.05rem;
    font-weight: 700;
    line-height: 1;
}

.collapsible-panel[open] .panel-summary::after {
    color: var(--accent);
    content: "-";
}

.panel-summary-title {
    color: var(--heading);
    font-size: 1rem;
    font-weight: 700;
}

.panel-summary-meta {
    color: var(--muted);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.panel-body {
    border-top: 1px solid rgba(92, 68, 51, 0.1);
    min-width: 0;
    padding: 0 18px 18px;
}

.viewer-card.emphasized {
    border-color: var(--accent);
    box-shadow: 0 12px 24px rgba(92, 68, 51, 0.08), 0 0 0 1px rgba(186, 43, 43, 0.1) inset;
}

.viewer-card.deemphasized {
    opacity: 0.6;
}

.preview-card {
    display: none;
}

.viewer-header {
    align-items: start;
    display: flex;
    gap: 16px;
    justify-content: space-between;
    margin-bottom: 14px;
}

.viewer-header h3 {
    margin: 0 0 8px;
}

.viewer-header p,
.focused-header p {
    margin: 0;
}

.viewer-badge,
.focus-meta {
    background: rgba(230, 215, 184, 0.92);
    border: 1px solid rgba(92, 68, 51, 0.16);
    border-radius: 14px;
    color: var(--text);
    padding: 12px 14px;
}

.viewer-badge {
    font-size: 0.95rem;
    min-width: 170px;
}

.focus-meta {
    min-width: 220px;
}

.focus-label {
    color: var(--accent);
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 6px;
}

.focus-size,
.focus-status {
    color: var(--muted);
    font-size: 0.95rem;
}

.focus-nav {
    display: flex;
    gap: 10px;
    justify-content: flex-end;
    margin-bottom: 12px;
}

.build-mode-meta {
    display: grid;
    gap: 10px;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    margin-bottom: 12px;
}

.build-mode-detail {
    background: rgba(230, 215, 184, 0.76);
    border: 1px solid rgba(92, 68, 51, 0.16);
    border-radius: 12px;
    color: var(--text);
    padding: 12px 14px;
}

.build-mode-controls {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 14px;
}

.build-row-sequence {
    background: rgba(243, 237, 227, 0.96);
    border: 1px solid rgba(92, 68, 51, 0.16);
    border-radius: 14px;
    color: var(--muted);
    min-height: 76px;
    padding: 14px;
    text-align: left;
}

.build-row-sequence-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.build-row-block {
    background: rgba(230, 215, 184, 0.72);
    border: 1px solid rgba(92, 68, 51, 0.16);
    border-radius: 999px;
    color: var(--text);
    display: inline-flex;
    padding: 8px 12px;
}

.viewer-container {
    background:
        linear-gradient(45deg, rgba(122, 91, 69, 0.045) 25%, transparent 25%),
        linear-gradient(-45deg, rgba(122, 91, 69, 0.045) 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, rgba(122, 91, 69, 0.045) 75%),
        linear-gradient(-45deg, transparent 75%, rgba(122, 91, 69, 0.045) 75%);
    background-color: #F3EDE3;
    background-position: 0 0, 0 12px, 12px -12px, -12px 0;
    background-size: 24px 24px;
    border: 2px solid rgba(92, 68, 51, 0.18);
    border-radius: 16px;
    box-shadow: inset 0 1px 0 rgba(250, 248, 243, 0.4);
    max-width: 100%;
    min-height: 260px;
    overflow-x: auto;
    overflow-y: visible;
    padding: 12px;
}

.preview-viewer-container {
    align-items: start;
    display: flex;
    justify-content: start;
}

.sync-toggle {
    align-items: center;
    color: var(--muted);
    display: inline-flex;
    gap: 8px;
}

.sync-toggle input {
    accent-color: var(--accent);
}

#blueprintViewer {
    /* Keep the full blueprint clipped inside its own workspace while zoom and drag pan move the viewport. */
    cursor: grab;
    height: 720px;
    max-height: 720px;
    min-height: 720px;
    overflow-anchor: none;
    overflow: hidden;
    position: relative;
    width: 100%;
}

#blueprintViewer.is-panning,
#focusedSectionViewer.is-panning {
    cursor: grabbing;
    user-select: none;
}

#fullBlueprintCard {
    min-width: 0;
    overflow: hidden;
}

#blueprintGrid {
    left: 0;
    position: absolute;
    top: 0;
    transform-origin: top left;
    will-change: transform;
}

.section-hover-overlay {
    --hover-border-thickness: 6px;
    inset: 0 auto auto 0;
    pointer-events: none;
    position: absolute;
    z-index: 6;
}

.section-hover-overlay[hidden] {
    display: none;
}

.section-hover-edge {
    background-size: 32px 32px;
    position: absolute;
}

.section-hover-edge-top,
.section-hover-edge-bottom {
    background-image: repeating-linear-gradient(90deg, #ffffff 0 12px, #111111 12px 24px);
    height: var(--hover-border-thickness);
    left: 0;
    right: 0;
}

.section-hover-edge-left,
.section-hover-edge-right {
    background-image: repeating-linear-gradient(180deg, #ffffff 0 12px, #111111 12px 24px);
    bottom: 0;
    top: 0;
    width: var(--hover-border-thickness);
}

.section-hover-edge-top {
    animation: section-hover-stripes-horizontal 0.75s linear infinite;
    top: 0;
}

.section-hover-edge-bottom {
    animation: section-hover-stripes-horizontal 0.75s linear infinite reverse;
    bottom: 0;
}

.section-hover-edge-left {
    animation: section-hover-stripes-vertical 0.75s linear infinite;
    left: 0;
}

.section-hover-edge-right {
    animation: section-hover-stripes-vertical 0.75s linear infinite reverse;
    right: 0;
}

@keyframes section-hover-stripes-horizontal {
    from {
        background-position: 0 0;
    }

    to {
        background-position: 32px 0;
    }
}

@keyframes section-hover-stripes-vertical {
    from {
        background-position: 0 0;
    }

    to {
        background-position: 0 32px;
    }
}

#focusedSectionCard {
    display: grid;
    grid-template-rows: auto auto minmax(0, 1fr);
    min-width: 0;
    overflow: hidden;
}

#focusedSectionViewer {
    cursor: grab;
    height: auto;
    max-height: none;
    min-height: 0;
    overflow: hidden;
    position: relative;
    width: 100%;
}

#focusedSectionGrid {
    left: 0;
    position: absolute;
    top: 0;
    transform-origin: top left;
    will-change: transform;
}

.blueprint-zoom-layer {
    left: 0;
    position: absolute;
    top: 0;
    transform-origin: top left;
    width: max-content;
}

.focused-viewer-container {
    min-height: 0;
}

.blueprint-grid {
    display: grid;
    gap: 0;
    margin: 0 auto;
    width: max-content;
}

.grid-frame {
    display: grid;
    grid-template-columns: var(--axis-size) max-content var(--axis-size);
    grid-template-rows: var(--axis-size) max-content var(--axis-size);
    margin: 0 auto;
    min-width: max-content;
    width: max-content;
}

.grid-corner,
.grid-axis {
    background: transparent;
}

.grid-corner {
    border: none;
}

.grid-axis {
    display: grid;
    width: max-content;
}

.grid-spacer {
    pointer-events: none;
}

.grid-axis-x-top {
    border-bottom: none;
    padding-bottom: 0;
}

.grid-axis-x-bottom {
    border-top: none;
    padding-top: 0;
}

.grid-axis-y-left {
    border-right: none;
    padding-right: 0;
}

.grid-axis-y-right {
    border-left: none;
    padding-left: 0;
}

.axis-cell {
    align-items: center;
    border: none;
    box-sizing: border-box;
    color: var(--muted);
    display: flex;
    letter-spacing: 0.01em;
    line-height: 1;
    font-weight: 600;
    justify-content: center;
    padding: 0;
    text-shadow: none;
}

.axis-x-top-cell {
    border-top: none;
}

.axis-x-bottom-cell {
    border-bottom: none;
}

.axis-y-left-cell {
    border-left: none;
}

.axis-y-right-cell {
    border-right: none;
}

.axis-cell.axis-section-start-x,
.axis-cell.axis-section-start-y {
    color: var(--text);
    font-weight: 700;
}

.grid-cell {
    align-items: center;
    border: var(--grid-line-width, 1px) solid rgba(92, 68, 51, 0.14);
    box-sizing: border-box;
    display: flex;
    font-weight: 600;
    justify-content: center;
    line-height: 1;
    overflow: hidden;
    position: relative;
    user-select: none;
}

.cell-boundary {
    pointer-events: none;
    position: absolute;
    z-index: 1;
}

.cell-boundary-left {
    background: rgba(92, 68, 51, 0.88);
    box-shadow: 1px 0 0 rgba(250, 248, 243, 0.28);
    inset: 0 auto 0 0;
    width: var(--section-line-width, 3px);
}

.cell-boundary-top {
    background: rgba(92, 68, 51, 0.88);
    box-shadow: 0 1px 0 rgba(250, 248, 243, 0.28);
    height: var(--section-line-width, 3px);
    inset: 0 0 auto 0;
}

/* Use lightweight overlays/outlines here because these styles can apply to hundreds of cells at once. */
.grid-cell.active-section-cell {
    background-image: linear-gradient(rgba(186, 43, 43, 0.045), rgba(186, 43, 43, 0.045));
    outline: 1px solid rgba(186, 43, 43, 0.45);
    outline-offset: -1px;
}

.grid-cell.dimmed-cell {
    opacity: 0.42;
}

.grid-cell.focused-section-cell {
    background-image: linear-gradient(rgba(186, 43, 43, 0.055), rgba(186, 43, 43, 0.055));
    outline: 1px solid rgba(186, 43, 43, 0.5);
    outline-offset: -1px;
}

.grid-cell.active-section-edge-left {
    border-left: var(--active-edge-width, 3px) solid rgba(186, 43, 43, 0.9) !important;
}

.grid-cell.active-section-edge-right {
    border-right: var(--active-edge-width, 3px) solid rgba(186, 43, 43, 0.9) !important;
}

.grid-cell.active-section-edge-top {
    border-top: var(--active-edge-width, 3px) solid rgba(186, 43, 43, 0.9) !important;
}

.grid-cell.active-section-edge-bottom {
    border-bottom: var(--active-edge-width, 3px) solid rgba(186, 43, 43, 0.9) !important;
}

.grid-cell.build-row-cell {
    background-image: linear-gradient(rgba(122, 91, 69, 0.12), rgba(122, 91, 69, 0.12));
    outline: var(--build-outline-width, 2px) solid rgba(122, 91, 69, 0.72);
    outline-offset: calc(var(--build-outline-width, 2px) * -1);
    z-index: 1;
}

.grid-cell.build-row-cell::after {
    background: rgba(122, 91, 69, 0.04);
    content: "";
    inset: 0;
    pointer-events: none;
    position: absolute;
}

.focused-viewer-container .grid-cell:not(.build-row-cell) {
    opacity: 0.9;
}

.focused-viewer-container .grid-cell.build-row-cell {
    outline: max(1px, calc(var(--build-outline-width, 2px) - 1px)) solid rgba(122, 91, 69, 0.32);
}

.grid-cell.selected-cell {
    border: var(--selected-border-width, 3px) solid var(--accent) !important;
    box-shadow: inset 0 0 0 1px rgba(243, 237, 227, 0.8);
    outline: var(--selected-outline-width, 2px) solid rgba(186, 43, 43, 0.16);
    outline-offset: 0;
    z-index: 2;
}

.section-overlay {
    inset: 0;
    pointer-events: none;
    position: absolute;
}

.section-overlay.status-completed {
    background: rgba(122, 91, 69, 0.12);
}

.section-overlay.status-in-progress {
    background: rgba(186, 43, 43, 0.1);
}

.tooltip {
    background: rgba(26, 26, 26, 0.94);
    border: 1px solid var(--accent);
    border-radius: 10px;
    color: #F3EDE3;
    display: none;
    font-size: 12px;
    max-width: 240px;
    padding: 8px 10px;
    pointer-events: none;
    position: absolute;
    left: 0;
    top: 0;
    transform: translate(-9999px, -9999px);
    white-space: pre-line;
    z-index: 1000;
}

/* Keep lower-workspace controls from creating extra paint work while the page is being scrolled. */
.workspace button:hover,
.collapsible-panel button:hover {
    transform: none;
}

.blueprint-legend-panel,
.sections-panel {
    width: 100%;
}

#blueprintLegendInfo {
    color: var(--muted);
    text-align: left;
}

.section-materials-header {
    color: var(--accent);
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.legend-list {
    /* Use grid here so legend items wrap into multiple columns instead of one tall sidebar stack. */
    display: grid;
    gap: 12px;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.legend-row {
    appearance: none;
    align-items: start;
    background: rgba(230, 215, 184, 0.58);
    border: 1px solid rgba(92, 68, 51, 0.14);
    border-radius: 12px;
    box-shadow: none;
    color: inherit;
    cursor: pointer;
    display: grid;
    font: inherit;
    gap: 4px 12px;
    grid-template-columns: 16px minmax(0, 1fr);
    padding: 12px;
    text-align: left;
    width: 100%;
}

.legend-row:hover {
    background: rgba(216, 198, 163, 0.4);
    transform: none;
}

.legend-row:focus-visible {
    outline: 2px solid rgba(201, 42, 42, 0.38);
    outline-offset: 2px;
}

.legend-row.active {
    background: rgba(201, 42, 42, 0.08);
    border-color: rgba(201, 42, 42, 0.34);
}

.legend-color {
    border: 1px solid rgba(26, 26, 26, 0.18);
    border-radius: 4px;
    display: inline-block;
    height: 16px;
    width: 16px;
}

.legend-name {
    align-self: center;
    color: var(--text);
    font-size: 0.94rem;
    font-weight: 600;
    min-width: 0;
    overflow-wrap: anywhere;
}

.legend-count {
    color: var(--accent-strong);
    font-size: 0.9rem;
    font-weight: 700;
    grid-column: 2;
    white-space: nowrap;
}

.workspace-legend-panel {
    grid-column: 1 / -1;
    width: 100%;
}

.preview-card {
    display: none;
}

.chat-widget {
    align-items: flex-end;
    bottom: 24px;
    display: none;
    flex-direction: column;
    gap: 12px;
    pointer-events: none;
    position: fixed;
    right: 24px;
    z-index: 950;
}

.chat-widget[hidden] {
    display: none !important;
}

body.workspace-active .chat-widget {
    bottom: 16px;
    display: flex;
    right: 16px;
}

.chat-widget > * {
    pointer-events: auto;
}

.chat-widget-launcher {
    border-radius: 999px;
    box-shadow: 0 14px 28px rgba(92, 68, 51, 0.16);
    font-weight: 700;
    min-height: 52px;
    padding: 0 18px;
}

.chat-widget.is-open .chat-widget-launcher {
    background: rgba(230, 215, 184, 0.96);
    border-color: var(--accent);
}

.chat-widget-panel {
    background: rgba(243, 237, 227, 0.98);
    border: 1px solid rgba(92, 68, 51, 0.2);
    border-radius: 20px;
    box-shadow: 0 18px 38px rgba(62, 46, 36, 0.18);
    max-height: min(440px, calc(100vh - 96px));
    overflow: hidden;
    width: min(340px, calc(100vw - 40px));
}

.chat-widget-header {
    align-items: start;
    background: linear-gradient(180deg, rgba(230, 215, 184, 0.82), rgba(230, 215, 184, 0.58));
    border-bottom: 1px solid rgba(92, 68, 51, 0.12);
    display: flex;
    gap: 12px;
    justify-content: space-between;
    padding: 16px 16px 14px;
}

.chat-widget-eyebrow {
    color: var(--accent);
    font-size: 0.74rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    margin: 0 0 6px;
    text-transform: uppercase;
}

.chat-widget-header h2 {
    font-size: 1.35rem;
    margin: 0;
}

.chat-widget-close {
    border-radius: 12px;
    flex: 0 0 auto;
    font-size: 1.1rem;
    min-height: 40px;
    min-width: 40px;
    padding: 0;
}

.chat-widget-messages {
    background: rgba(243, 237, 227, 0.8);
    display: grid;
    gap: 10px;
    max-height: 250px;
    min-height: 190px;
    overflow-y: auto;
    padding: 14px 16px;
}

.chat-widget-empty {
    align-items: center;
    background: rgba(230, 215, 184, 0.42);
    border: 1px dashed rgba(92, 68, 51, 0.22);
    border-radius: 14px;
    color: var(--muted);
    display: grid;
    min-height: 100%;
    padding: 18px;
    text-align: center;
}

.chat-widget-message {
    border: 1px solid rgba(92, 68, 51, 0.16);
    border-radius: 14px;
    display: grid;
    gap: 6px;
    max-width: 86%;
    padding: 12px 14px;
}

.chat-widget-message.is-bot {
    background: rgba(230, 215, 184, 0.72);
    justify-self: start;
}

.chat-widget-message.is-user {
    background: rgba(201, 42, 42, 0.08);
    border-color: rgba(201, 42, 42, 0.22);
    justify-self: end;
}

.chat-widget-message-role {
    color: var(--muted);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.chat-widget-message p {
    color: var(--text);
    margin: 0;
    overflow-wrap: anywhere;
}

.chat-widget-form {
    background: rgba(243, 237, 227, 0.92);
    border-top: 1px solid rgba(92, 68, 51, 0.1);
    padding: 14px 16px 16px;
}

.chat-widget-input-row {
    display: grid;
    gap: 10px;
    grid-template-columns: minmax(0, 1fr) auto;
}

.chat-widget-input {
    min-width: 0;
}

.chat-widget.is-loading .chat-widget-panel {
    box-shadow: 0 18px 38px rgba(62, 46, 36, 0.18), 0 0 0 1px rgba(201, 42, 42, 0.12);
}

.chat-widget-message.is-pending {
    opacity: 0.78;
}

.chat-widget-message.is-pending p {
    font-style: italic;
}

.chat-widget-message.is-error {
    background: rgba(201, 42, 42, 0.12);
    border-color: rgba(201, 42, 42, 0.3);
}

.chat-widget-input:disabled,
#chatSendBtn:disabled {
    cursor: wait;
    opacity: 0.7;
}

.upgrade-modal[hidden] {
    display: none !important;
}

body.upgrade-modal-open {
    overflow: hidden;
}

.upgrade-modal {
    inset: 0;
    position: fixed;
    z-index: 1200;
}

.upgrade-modal-backdrop {
    backdrop-filter: blur(4px);
    background: rgba(62, 46, 36, 0.42);
    inset: 0;
    position: absolute;
}

.upgrade-modal-dialog {
    background: rgba(243, 237, 227, 0.98);
    border: 1px solid rgba(92, 68, 51, 0.2);
    border-radius: 24px;
    box-shadow: 0 28px 60px rgba(62, 46, 36, 0.22);
    display: grid;
    gap: 18px;
    left: 50%;
    max-width: min(560px, calc(100vw - 32px));
    padding: 24px;
    position: absolute;
    top: 50%;
    transform: translate(-50%, -50%);
    width: calc(100vw - 32px);
}

.upgrade-modal-header {
    align-items: start;
    display: flex;
    gap: 16px;
    justify-content: space-between;
}

.upgrade-modal-eyebrow {
    color: var(--accent);
    font-size: 0.74rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    margin: 0 0 6px;
    text-transform: uppercase;
}

.upgrade-modal-header h2 {
    font-size: clamp(1.7rem, 3vw, 2.1rem);
    margin: 0 0 8px;
}

.upgrade-modal-copy {
    color: var(--muted);
    margin: 0;
}

.upgrade-modal-close {
    border-radius: 12px;
    flex: 0 0 auto;
    font-size: 1.1rem;
    min-height: 40px;
    min-width: 40px;
    padding: 0;
}

.upgrade-modal-options {
    display: grid;
    gap: 14px;
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.upgrade-option {
    align-content: start;
    background: rgba(230, 215, 184, 0.48);
    border: 1px solid rgba(92, 68, 51, 0.18);
    border-radius: 18px;
    display: grid;
    gap: 8px;
    justify-items: start;
    min-height: 0;
    padding: 18px;
    position: relative;
    text-align: left;
}

.upgrade-option:hover {
    background: rgba(230, 215, 184, 0.7);
}

.upgrade-option-lifetime {
    background: linear-gradient(180deg, rgba(201, 42, 42, 0.1), rgba(230, 215, 184, 0.74));
    border-color: rgba(201, 42, 42, 0.28);
}

.upgrade-option-badge {
    background: var(--accent);
    border-radius: 999px;
    color: #fff;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    padding: 5px 10px;
    text-transform: uppercase;
}

.upgrade-option-title {
    font-size: 1.1rem;
    font-weight: 700;
}

.upgrade-option-price {
    color: var(--accent-strong);
    font-size: 1.35rem;
    font-weight: 800;
}

.upgrade-option-copy {
    color: var(--muted);
    line-height: 1.45;
}

.upgrade-modal-status {
    background: rgba(201, 42, 42, 0.1);
    border: 1px solid rgba(201, 42, 42, 0.22);
    border-radius: 14px;
    color: var(--text);
    margin: 0;
    padding: 12px 14px;
}

@media (max-width: 980px) {
    .setup-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .setup-card-upload,
    .setup-grid > .setup-card:nth-child(2),
    .setup-grid > .setup-card:nth-child(3) {
        grid-column: span 1;
    }

    .workspace {
        grid-template-columns: 1fr;
    }

    .welcome-steps {
        grid-template-columns: 1fr;
    }

}

@media (max-width: 980px) {
    .workspace {
        grid-template-columns: 1fr;
    }

    .welcome-steps {
        grid-template-columns: 1fr;
    }

}

@media (max-width: 720px) {
    .container {
        padding: 18px;
    }

    .upgrade-modal-dialog {
        padding: 20px;
    }

    .upgrade-modal-options {
        grid-template-columns: 1fr;
    }

    .chat-widget-panel {
        max-height: min(420px, calc(100vh - 96px));
        width: min(340px, calc(100vw - 32px));
    }

    .welcome-card {
        padding: 24px 20px;
    }

    .welcome-upload-spotlight {
        padding: 18px;
    }

    .welcome-upload-button {
        min-width: 100%;
    }

    .welcome-actions {
        width: 100%;
    }


    .setup-grid {
        grid-template-columns: 1fr;
    }

    .viewer-header,
    .focus-nav {
        grid-template-columns: 1fr;
        display: grid;
    }

    .workspace-shell,
    .control-panel {
        padding: 18px;
    }

    .focus-meta,
    .viewer-badge {
        min-width: 0;
        width: 100%;
    }

    .viewer-controls {
        justify-content: stretch;
    }

    .viewer-controls > * {
        width: 100%;
    }

    .button-group {
        width: 100%;
    }

    .button-group button {
        flex: 1 1 0;
    }

    .focused-viewer-container {
        min-height: 320px;
    }
}