:root {
    color-scheme: dark;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    --page: #0f1914;
    --glow: #1b2a20;
    --panel: #1b2920;
    --surface: #15221a;
    --text: #f3f4ef;
    --muted: #d4d9d2;
    --accent: #b5e6ae;
    --accent-alt: #86b88c;
    --on-accent: #101b10;
    --border: #607b65;
    --soft-border: #4a6250;
    --error: #ffb4ab;
}
:root[data-theme="plum-rose"] {
    --page: #211820; --glow: #342332; --panel: #30232e; --surface: #281d26;
    --text: #faf0f5; --muted: #e0cdd8; --accent: #efbdd0; --accent-alt: #c68ca7;
    --on-accent: #2c1422; --border: #96758a; --soft-border: #735568;
}
:root[data-mode="light"] {
    color-scheme: light;
    --page: #f3f5ee; --glow: #e5ecdf; --panel: #fbfcf6; --surface: #f0f4e9;
    --text: #243b2a; --muted: #455a48; --accent: #355f3e; --accent-alt: #73986b;
    --on-accent: #ffffff; --border: #81937b; --soft-border: #a7b4a0; --error: #a22228;
}
:root[data-theme="plum-rose"][data-mode="light"] {
    --page: #fbf3f6; --glow: #f0e2ea; --panel: #fff9fc; --surface: #f6eaf0;
    --text: #44283b; --muted: #6a4b5d; --accent: #88445f; --accent-alt: #bc829b;
    --on-accent: #ffffff; --border: #b18c9f; --soft-border: #cdb0bf;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
body { margin: 0; background: radial-gradient(ellipse at 50% 35%, var(--glow), var(--page) 78%); color: var(--text); }
a { color: var(--accent); text-underline-offset: .2em; }
button, input, select { font: inherit; }
button, input::file-selector-button { color: var(--text); background: var(--surface); border: 1px solid var(--border); border-radius: .55rem; min-height: 44px; padding: .65rem 1rem; cursor: pointer; }
button:disabled { opacity: .5; cursor: not-allowed; }
button:hover:not(:disabled) { border-color: var(--accent); }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 5px; }
p { line-height: 1.6; }
.site-shell { max-width: 1480px; margin: auto; min-height: calc(100svh - 30px); display: flex; flex-direction: column; padding: 28px 40px 0; }
.site-header { display: grid; grid-template-columns: 220px 1fr auto; align-items: start; gap: 28px; }
.brand { display: block; width: 190px; }
.brand-mark { display: block; position: relative; width: 100%; aspect-ratio: 1620 / 980; background: var(--text); mask: url('../assets/knottygrid-logo.png') center / contain no-repeat; }
.brand-mark::after { content: ''; position: absolute; inset: 19% 2% 69% 84%; background: linear-gradient(90deg, var(--accent-alt) 48%, var(--accent) 48%); }
.attribution { display: flex; align-items: center; gap: 12px; color: var(--text); text-decoration: none; font-size: 17px; margin-top: 5px; white-space: nowrap; }
.tiktok { color: var(--text); font-weight: 800; font-size: 35px; line-height: 1; text-shadow: -2px -1px #25f4ee, 2px 1px #fe2c55; }
.primary-nav { display: flex; justify-content: flex-start; align-items: center; gap: 34px; padding-top: 12px; }
.primary-nav a { display: inline-flex; align-items: center; gap: 12px; color: var(--text); text-decoration: none; white-space: nowrap; min-height: 54px; font-size: 20px; padding: 8px 4px; border-bottom: 4px solid transparent; }
.primary-nav a.active { border-bottom-color: var(--accent); }
.primary-nav .library-link { border: 1px solid var(--accent); border-radius: 9px; color: var(--accent); padding: 9px 16px; }
.icon { width: 27px; height: 27px; flex: 0 0 auto; }
.header-actions { display: flex; align-items: center; gap: 14px; padding-top: 12px; }
.icon-btn { padding: 7px; border: 0; background: transparent; display: inline-flex; align-items: center; justify-content: center; min-width: 44px; }
.mode-btn { border-left: 1px solid var(--accent); border-radius: 0; padding-left: 16px; }
.save-btn { display: inline-flex; gap: 10px; align-items: center; font-size: 19px; }
.appearance-picker { position: relative; }
.theme-choices { position: absolute; z-index: 10; right: 0; top: 52px; width: 290px; padding: 10px; border: 1px solid var(--border); border-radius: 10px; background: var(--panel); box-shadow: 0 6px 24px #0003; }
.theme-heading { display: flex; align-items: center; justify-content: space-between; padding: 0 8px 8px; }
.theme-list { display: grid; grid-template-columns: minmax(0, 1fr); gap: 4px; max-height: min(360px, 55dvh); overflow-y: auto; overscroll-behavior: contain; padding: 8px; }
.theme-more { width: 100%; margin-top: 8px; }
.theme-list button { width: 100%; text-align: left; display: flex; align-items: center; gap: 10px; background: transparent; border-color: transparent; padding: 10px 8px; }
.theme-list button:hover { background: var(--glow); }
.theme-list button .icon { width: 18px; height: 18px; margin-left: auto; }
.theme-choices button[aria-pressed="true"] { border-color: var(--accent); }
.swatch { width: 16px; height: 16px; flex: 0 0 16px; border-radius: 3px; border: 1px solid var(--text); }
@media (max-width: 48rem) {
    .theme-choices { position: fixed; inset: 90px 12px auto; width: auto; }
    .theme-list { max-height: min(360px, calc(100dvh - 240px)); }
}
#content { flex: 1; }
main { max-width: 900px; margin: 24px auto 48px; padding: 16px 0; }
h1 { font-family: Georgia, 'Times New Roman', serif; font-size: clamp(2.6rem, 5.7vw, 4.7rem); line-height: 1.1; margin: 0 0 10px; letter-spacing: -.025em; }
h2 { margin: 0 0 20px; font-size: 26px; }
h1:focus { outline: none; }
.hero { text-align: center; margin: 0 -70px 32px; }
.hero p { margin: 12px 0 0; font-size: clamp(1.2rem, 2.5vw, 1.85rem); }
section { border: 1px solid var(--border); background: var(--panel); border-radius: 12px; padding: 30px; margin-top: 24px; }
.create-panel { max-width: 840px; margin: auto; padding: 26px 32px 30px; background: linear-gradient(125deg, var(--panel), var(--surface)); }
.technique-choices { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.technique-choice { display: flex; align-items: center; gap: 16px; padding: 22px 18px; min-height: 140px; border: 1px solid var(--soft-border); border-radius: 14px; cursor: pointer; }
.technique-choice:has(input:checked) { border: 2px solid var(--accent); padding: 21px 17px; box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--accent) 12%, transparent); }
.technique-choice input { appearance: none; flex: 0 0 25px; width: 25px; height: 25px; border: 2px solid var(--muted); border-radius: 50%; margin: 0; align-self: flex-start; margin-top: 4px; }
.technique-choice input:checked { border: 3px solid var(--accent); background: radial-gradient(circle, var(--text) 0 48%, transparent 53%); }
.technique-choice img { width: 70px; height: 90px; object-fit: contain; image-rendering: pixelated; }
.technique-choice strong { display: block; font-size: 20px; margin-bottom: 5px; }
.technique-choice span span { display: block; font-size: 18px; white-space: nowrap; }
.start-btn { display: flex; align-items: center; justify-content: center; gap: 14px; background: var(--accent); color: var(--on-accent); border: 0; font-weight: 700; font-size: 25px; width: 100%; min-height: 66px; margin-top: 28px; border-radius: 12px; }
.start-btn .icon { width: 32px; height: 32px; }
.anonymous-note { text-align: center; margin: 18px 0 10px; font-size: 19px; }
.examples-link { display: block; width: fit-content; margin: auto; padding: 4px; font-size: 22px; }
footer { padding: 36px 0 18px; }
.social { display: flex; justify-content: center; align-items: center; gap: 20px; font-size: 19px; }
.social .tiktok { font-size: 44px; }
.social-divider, .footer-links span { color: var(--accent-alt); }
.footer-links { display: flex; justify-content: flex-end; gap: 24px; align-items: center; margin-top: 20px; }
.footer-links a { color: var(--text); text-decoration: none; padding: 10px 0; }
.square-trim { height: 12px; margin: 0 5px 18px; background: repeating-linear-gradient(90deg,var(--accent-alt) 0 12px,transparent 12px 26px); }
.skip-link { position: fixed; z-index: 20; top: -100px; left: 12px; padding: 12px; background: var(--panel); }
.skip-link:focus { top: 12px; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; }
input[type=file] { max-width: 100%; }
canvas { display: block; max-width: 100%; height: auto; margin-top: 1rem; border: 1px solid var(--border); image-rendering: pixelated; }
.valid.modified:not([type=checkbox]) { outline: 1px solid var(--accent); }
.invalid { outline: 1px solid var(--error); }
.validation-message { color: var(--error); }
#blazor-error-ui { background: var(--panel); color: var(--error); bottom: 0; display: none; left: 0; padding: 1rem; position: fixed; width: 100%; z-index: 1000; border-top: 1px solid var(--error); }
#blazor-error-ui .dismiss { cursor: pointer; position: absolute; right: .75rem; top: .5rem; }
.blazor-error-boundary { background: var(--panel); color: var(--error); padding: 1rem; }
.blazor-error-boundary::after { content: "An error has occurred."; }
.loading-progress { display: block; width: 8rem; height: 8rem; margin: 20vh auto 0; }
.loading-progress circle { fill: none; stroke: var(--border); stroke-width: .6rem; transform-origin: 50% 50%; transform: rotate(-90deg); }
.loading-progress circle:last-child { stroke: var(--accent); stroke-dasharray: calc(3.141 * var(--blazor-load-percentage, 0%) * .8), 500%; }
.loading-progress-text { text-align: center; }
.loading-progress-text::after { content: var(--blazor-load-percentage-text, "Loading"); }
code { color: var(--accent); }
@media (max-width: 64rem) {
    .site-shell { padding: 22px 24px 0; }
    .site-header { grid-template-columns: 190px 1fr; gap: 20px; }
    .header-actions { grid-column: 2; grid-row: 1; justify-self: end; }
    .primary-nav { grid-column: 1 / -1; grid-row: 2; justify-content: flex-start; padding-top: 0; }
    .hero { margin-left: 0; margin-right: 0; }
}
@media (max-width: 48rem) {
    .site-shell { padding: 22px 20px 0; }
    .site-header { grid-template-columns: minmax(130px, 1fr) auto; gap: 20px 10px; }
    .brand { width: 140px; max-width: 100%; }
    .attribution { font-size: 14px; gap: 10px; }
    .attribution .tiktok { font-size: 27px; }
    .header-actions { gap: 6px; padding-top: 14px; }
    .header-actions .icon { width: 24px; height: 24px; }
    .mode-btn { padding-left: 9px; }
    .save-btn { font-size: 16px; padding: 8px; gap: 7px; }
    .primary-nav { gap: 8px; }
    .primary-nav a { font-size: 17px; gap: 7px; }
    .primary-nav .library-link { padding: 8px 10px; }
    main { margin-top: 24px; margin-bottom: 20px; }
    .hero { text-align: left; margin-bottom: 20px; }
    h1 { font-size: clamp(2.5rem, 10.5vw, 4.5rem); }
    .hero p { font-size: clamp(1.12rem, 4.8vw, 1.7rem); line-height: 1.45; }
    h2 { font-size: 24px; margin-bottom: 16px; }
    .create-panel { padding: 20px 18px; }
    .technique-choices { grid-template-columns: 1fr; gap: 14px; }
    .technique-choice { padding: 16px; gap: 14px; min-height: 108px; }
    .technique-choice:has(input:checked) { padding: 15px; }
    .technique-choice img { width: 54px; height: 78px; }
    .technique-choice strong { font-size: 18px; }
    .technique-choice span span { font-size: 17px; }
    .start-btn { margin-top: 16px; font-size: 24px; min-height: 60px; }
    .anonymous-note { font-size: 16px; margin-top: 16px; }
    .examples-link { font-size: 20px; }
    footer { border-top: 1px solid var(--accent-alt); margin-top: 4px; padding-top: 24px; }
    .social { gap: 12px; font-size: 14px; flex-wrap: wrap; }
    .social .tiktok { font-size: 32px; }
    .footer-links { margin-top: 16px; gap: 20px; }
    .square-trim { height: 10px; background-size: auto; }
}
@media (max-width: 370px) {
    .site-shell { padding-left: 14px; padding-right: 14px; }
    .brand { width: 120px; }
    .attribution { font-size: 12px; gap: 5px; }
    .header-actions { gap: 0; }
    .save-btn span { display: none; }
    .primary-nav { gap: 6px; }
    .primary-nav a { font-size: 14px; gap: 5px; }
    .primary-nav .icon { width: 22px; }
    .technique-choice { gap: 12px; padding: 12px; }
    .technique-choice:has(input:checked) { padding: 11px; }
    .technique-choice img { width: 46px; }
    .technique-choice strong { font-size: 18px; }
    .technique-choice span span { font-size: 16px; }
}
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { scroll-behavior: auto !important; animation: none !important; transition: none !important; } }
.editor-page { max-width: 1260px; }
.project-card, .tools-card, .drawing-area, .editor-settings { border: 1px solid var(--soft-border); border-radius: 14px; background: var(--panel); }
.project-card { padding: 22px 24px; }
.tools-card { padding: 18px 24px; margin: 18px 0; }
.tools-card-heading { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px; }
.tools-card-heading h2, .colors-card-heading h2 { font-size: 1.1rem; margin: 0; }
.history-controls, .zoom-controls { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; }
.editor-page .action-btn { min-height: 44px; font-size: .95rem; }
.editor-page .action-btn .icon { width: 20px; height: 20px; }
.editor-page .editor-heading h1 { margin-bottom: 0; }
.editor-page .draft-badge { border: 1px solid var(--soft-border); border-radius: 20px; padding: 4px 10px; font-size: .8rem; }
.editor-page .editor-intro { margin: 10px 0 16px; }
.editor-page .save-status { border-top: 1px solid var(--soft-border); padding-top: 12px; margin-bottom: 0; }
.editor-page .save-status span { display: inline; margin-left: 8px; }
.editor-page .download-action { margin-left: auto; }
.editor-page .view-toolbar { padding: 14px 16px; border-bottom: 1px solid var(--soft-border); justify-content: space-between; }
.editor-page .grid-caption { margin: 0; padding: 12px 16px; }
.editor-page #cell-status { margin: 0; padding: 12px 16px 0; font-size: .9rem; }
.drawing-area > .field-hint { margin: 8px 16px 16px; }
.editor-settings > .action-btn { width: 100%; }
.editor-settings h3 { font-size: .95rem; margin: 20px 0 10px; }
.editor-settings .active-color { padding: 12px; margin: 14px 0; background: var(--surface); border: 1px solid var(--soft-border); border-radius: 8px; font-size: .9rem; gap: 8px; }
.active-color .text-btn { padding: 4px; min-height: 44px; margin-left: 24px; }
.editor-settings h3:focus { outline: none; }
.editor-heading { display: flex; flex-wrap: wrap; align-items: center; gap: 18px; }
.editor-heading h1 { font-size: clamp(2rem, 4vw, 3rem); }
.draft-badge { color: var(--muted); font-size: .9rem; }
.setup-fields { display: flex; flex-wrap: wrap; gap: 18px; }
.setup-fields label, .project-input { display: grid; gap: 8px; }
.setup-fields input { width: 110px; }
.setup-fields input, select { min-height: 44px; border: 1px solid var(--border); border-radius: 6px; padding: 8px; background: var(--surface); color: var(--text); max-width: 100%; }
.project-input { margin-top: 24px; }
.pattern-name { display: grid; gap: 8px; max-width: 28rem; }
.pattern-name input { width: 100%; min-height: 44px; border: 1px solid var(--border); border-radius: 6px; padding: 8px; background: var(--surface); color: var(--text); }
.editor-toolbar { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin: 24px 0 12px; }
.editor-toolbar button[aria-pressed="true"], .palette-row button[aria-pressed="true"] { border-color: var(--accent); background: var(--glow); box-shadow: inset 0 0 0 1px var(--accent); }
.editor-toolbar label { display: flex; align-items: center; gap: 8px; }
.editor-workspace { display: grid; grid-template-columns: minmax(0, 1fr) 280px; gap: 18px; align-items: start; }
.drawing-area { min-width: 0; overflow: hidden; }
.canvas-viewport { overflow: auto; max-height: 70svh; border-block: 1px solid var(--soft-border); background: var(--surface); padding: 16px; }
.canvas-viewport canvas { max-width: none; margin: 0; border: 0; touch-action: none; }
.grid-caption, #canvas-help { color: var(--muted); font-size: .9rem; }
.editor-settings { padding: 18px; align-self: start; }
.editor-settings h2 { font-size: 1.1rem; margin: 0; }
.editor-settings p { font-size: .9rem; color: var(--muted); }
.palette-row { display: flex; gap: 8px; margin: 8px 0; align-items: center; }
.palette-tools { padding: 12px; margin-bottom: 12px; border: 1px solid var(--border); border-radius: 12px; background: var(--surface); }
.palette-tools > button { margin-top: 8px; }
.palette-add { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; }
.palette-add label { display: flex; align-items: center; gap: 8px; }
.palette-add input { width: 44px; min-height: 44px; }
.palette-remove { display: grid; gap: 8px; border-top: 1px solid var(--border); margin-top: 12px; padding-top: 12px; }
.palette-remove label { display: grid; gap: 4px; }
.palette-remove select { width: 100%; min-width: 0; }
.palette-row button { display: flex; gap: 8px; align-items: center; text-align: left; flex: 1; padding: 8px; }
.palette-row input { width: 44px; min-height: 44px; padding: 3px; border: 1px solid var(--border); background: var(--surface); }
.yarn-swatch { width: 20px; height: 20px; flex: 0 0 auto; border: 1px solid #888; border-radius: 3px; }
@media (max-width: 48rem) {
    .editor-workspace { grid-template-columns: minmax(0, 1fr); }
    .editor-page .pattern-setup { padding: 18px; }
    .setup-fields { display: grid; grid-template-columns: minmax(0, 1fr); }
    .canvas-viewport { max-height: 60svh; }
}
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.action-btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; }
.action-btn .icon { width: 22px; height: 22px; }
.action-description { display: block; flex-basis: 100%; color: var(--muted); font-size: .85rem; font-weight: 400; line-height: 1.5; text-align: left; }
.editor-intro { max-width: 75ch; }
.editor-intro span { display: block; color: var(--muted); font-size: .9rem; }
.file-actions, .view-toolbar, .tool-preferences { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }
.file-actions { margin: 0; }
.download-action { background: var(--accent); color: var(--on-accent); font-weight: 650; }
.save-status { margin: 8px 0 20px; font-size: .9rem; color: var(--muted); }
.save-status span { display: block; }
.tool-preferences { justify-content: space-between; font-size: .85rem; }
.tool-preferences label { display: flex; align-items: center; flex-wrap: wrap; gap: 10px; }
.editor-toolbar { margin: 14px 0 8px; }
.tool-display-details { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); align-items: stretch; }
.tool-display-details .action-btn { flex-wrap: wrap; justify-content: flex-start; align-content: start; }
.tool-display-compact .action-btn { min-width: 48px; min-height: 48px; }
.tool-guidance { margin: 12px 0 0; padding-top: 12px; border-top: 1px solid var(--soft-border); color: var(--muted); font-size: .95rem; }
.tool-guidance strong { color: var(--text); }
.tool-help { border: 1px solid var(--border); padding: 12px 18px; border-radius: 10px; background: var(--surface); margin-top: 14px; }
.tool-help p { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.tool-help .icon { width: 22px; height: 22px; }

.zoom-value { min-width: 5rem; color: var(--muted); font-size: .9rem; }
.active-color { display: flex; align-items: center; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.text-btn { background: transparent; color: var(--accent); text-decoration: underline; border-color: transparent; }
.field-hint { color: var(--muted); font-size: .9rem; }
.pattern-setup .action-btn { margin-top: 10px; }
.pattern-setup h2:focus, .editor-settings h2:focus { outline: none; }
.setup-fields label { align-content: start; }
.setup-fields .validation-message { max-width: 24ch; font-size: .85rem; }
input[aria-invalid="true"] { border-color: var(--error); }
.replace-dialog { max-width: min(560px, calc(100vw - 32px)); color: var(--text); background: var(--panel); border: 1px solid var(--border); border-radius: 14px; padding: 24px; }
.replace-dialog::backdrop { background: #0009; }
.footer-links a { display: inline-flex; align-items: center; gap: 7px; }
.footer-links .icon { width: 20px; height: 20px; }
@media (max-width: 48rem) {
    .file-actions { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .file-actions .action-btn { padding: 8px; }
    .file-actions .download-action { grid-column: 1 / -1; }
    .view-toolbar { gap: 6px; }
    .view-toolbar .action-btn { padding: 8px; font-size: .9rem; }
    .project-card, .tools-card { padding: 16px; }
    .tools-card-heading, .tool-preferences { align-items: flex-start; }
    .tool-preferences { width: 100%; gap: 8px; }
    .tool-preferences label { gap: 6px; }
    .editor-page .download-action { margin-left: 0; }
    .editor-page .save-status span { display: block; margin-left: 0; }
    .editor-settings { order: -1; }
    .editor-settings .active-color { margin: 10px 0; }
    .active-color .text-btn { margin-left: auto; }
    .editor-page .view-toolbar { padding: 12px; }
    .zoom-controls { border-top: 1px solid var(--soft-border); padding-top: 10px; width: 100%; }
    .zoom-value { margin-left: auto; }
    .editor-toolbar .action-btn { flex: 1 1 auto; }
    .tool-display-details { grid-template-columns: minmax(0, 1fr); }
    .tool-guidance { min-height: 0; }
}
@media (max-width: 370px) {
    .save-btn { flex-direction: column; padding: 4px; gap: 0; min-width: 44px; }
    .save-btn span { display: block; font-size: 11px; }
    .header-actions .save-btn .icon { width: 18px; height: 18px; }
}

.row-instructions { padding: 20px 24px; margin-top: 18px; }
.instruction-options, .row-navigation { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.instruction-options label, .row-navigation label { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.instruction-help { border-block: 1px solid var(--soft-border); margin: 16px 0; padding: 8px 0; }
.instruction-help summary { cursor: pointer; min-height: 44px; padding: 10px 0; }
.written-row { background: var(--surface); border: 1px solid var(--soft-border); border-radius: 10px; padding: 16px; margin-top: 16px; }
.written-row h3 { margin: 0; }
.color-runs { padding-left: 28px; }
.color-runs li { padding: 6px 0; line-height: 1.6; }
.color-runs .yarn-swatch { display: inline-block; vertical-align: middle; margin-right: 10px; }
@media (max-width: 48rem) { .row-instructions { padding: 16px; } }

.icon-label { display: inline-flex; align-items: center; gap: 8px; }
.icon-label .icon, .tool-guidance > .icon { width: 20px; height: 20px; }
.tool-guidance > .icon { vertical-align: middle; margin-right: 8px; }
.instruction-help summary .icon-label { vertical-align: middle; }
.row-direction { margin-bottom: 0; color: var(--accent); }

.mosaic-check { padding: 20px 24px; margin-top: 18px; }
.mosaic-check h2 { font-size: 1.1rem; margin-bottom: 0; }
.mosaic-preview { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.mosaic-preview figure { margin: 0; padding: 12px; border: 1px solid var(--soft-border); border-radius: 10px; background: var(--surface); }
.mosaic-preview figcaption { margin-bottom: 10px; font-weight: 600; }
.mosaic-preview canvas { display: block; width: auto; max-width: 100%; height: auto; image-rendering: pixelated; margin: auto; }
.mosaic-check .file-actions { margin-top: 16px; }
.mosaic-check summary { min-height: 44px; padding: 10px 0; cursor: pointer; }
@media (max-width: 48rem) { .mosaic-check { padding: 16px; } .mosaic-preview { grid-template-columns: minmax(0, 1fr); } }

.mosaic-rows { border-top: 1px solid var(--soft-border); margin-top: 18px; padding-top: 18px; }
.mosaic-rows .tools-card-heading { margin-bottom: 16px; }
.mosaic-rows h3 { font-size: 1.05rem; margin: 0; }
.mosaic-mark-scroll { max-width: 100%; overflow-x: auto; border-radius: 6px; }
.mosaic-mark-scroll canvas { display: block; max-width: none; margin: 0; border: 0; }
.mosaic-rows .row-direction { display: flex; }

.chart-export { margin-top: 16px; padding-top: 16px; border-top: 1px solid var(--soft-border); }
.chart-export-actions { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.chart-export p { margin: 8px 0 0; }

.output-brand { display: flex; justify-content: flex-end; padding: .5rem 0; }
.output-brand .brand-mark { width: 104px; flex: 0 0 104px; }

.chart-export-actions > label { display: flex; align-items: center; gap: .5rem; }
.image-options { margin: 18px 0; padding: 16px; border: 1px solid var(--soft-border); border-radius: 10px; min-width: 0; }
.image-options legend { padding: 0 6px; }
.image-options .instruction-help label { display: grid; gap: 8px; margin-top: 12px; max-width: 320px; }
.image-preview { margin-top: 18px; }
.image-preview canvas { width: 100%; max-height: 420px; object-fit: contain; }
.image-import > .action-btn { margin-right: 10px; }
.picture-crop { touch-action: none; image-rendering: auto; cursor: crosshair; }

.showcase-page { max-width: 1320px; }
.community-nav, .design-actions, .showcase-filters { display: flex; flex-wrap: wrap; gap: .75rem; align-items: center; margin: 1rem 0 1.5rem; }
.community-nav a { display: inline-flex; align-items: center; gap: .35rem; padding: .5rem .25rem; }
.community-nav a.active { color: var(--accent); text-decoration-thickness: 3px; }
.design-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 260px), 1fr)); gap: 1rem; align-items: start; }
.design-card { border: 1px solid var(--soft-border); border-radius: 1rem; background: var(--panel); padding: .85rem; min-width: 0; overflow-wrap: anywhere; }
.design-card a { text-decoration: none; }
.design-card h2 { font-size: 1.2rem; margin: .75rem 0 .35rem; }
.design-card p { margin: .45rem 0; }
.design-thumb { margin: 0; background: var(--surface); border-radius: .6rem; overflow: hidden; }
.design-thumb canvas { width: 100%; max-height: 400px; min-height: 100px; object-fit: contain; image-rendering: pixelated; display: block; }
.design-thumb .output-brand, .design-card .output-brand { margin: .4rem auto; }
.design-thumb .output-brand .brand-mark, .design-card .output-brand .brand-mark { width: 80px; height: 55px; }
.description-excerpt { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.maker-name { color: var(--muted); }
.card-counts { display: flex; flex-wrap: wrap; gap: 1rem; font-size: .875rem; }
.card-counts span { display: inline-flex; align-items: center; gap: .3rem; }
.design-actions button[aria-pressed=true], .comment button[aria-pressed=true] { color: var(--accent); border-color: var(--accent); }
.design-actions button[aria-pressed=true] .icon, .comment button[aria-pressed=true] .icon { fill: currentColor; }
.publication-controls, .comment-list, .collection-chooser { padding: 1rem; border: 1px solid var(--soft-border); border-radius: .8rem; margin: 1rem 0; }
.publication-controls label, .comment-list label, .report-form label, .showcase-page section label { display: grid; gap: .35rem; margin-top: .65rem; }
textarea { width: 100%; min-height: 5rem; resize: vertical; color: var(--text); background: var(--surface); border: 1px solid var(--border); border-radius: .5rem; padding: .65rem; font: inherit; box-sizing: border-box; }
.comment { border-bottom: 1px solid var(--soft-border); padding: 1rem 0; overflow-wrap: anywhere; }
.comment .comment-list { margin-left: .5rem; }
.report-form { margin-top: .65rem; }
.report-form summary { cursor: pointer; padding: .65rem 0; }
.collection-cover { display: grid; grid-template-columns: 1fr 1fr; gap: .25rem; min-height: 110px; background: var(--surface); }
.collection-cover canvas { width: 100%; height: 110px; object-fit: contain; image-rendering: pixelated; }
.example-detail { max-width: 1000px; }
.community-sign-in button { margin: .3rem; }
@media (max-width: 48rem) { .primary-nav { flex-wrap: wrap; } .design-actions button { flex: 1 1 42%; } .showcase-filters label { flex: 1 1 40%; } }
.design-grid.masonry-on { grid-auto-rows: 4px; }

.home-explore { margin-top: 2.5rem; }
.explore-heading { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: .75rem; margin-bottom: 1rem; }
.explore-heading h1, .explore-heading h2, .explore-heading p { margin: .35rem 0; }
.explore-heading a { display: inline-flex; align-items: center; gap: .4rem; padding: .5rem 0; }
.home-design-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1rem; margin-bottom: 1rem; }
.home-design-grid .design-card { padding: .65rem; }
.home-design-grid .description-excerpt { display: none; }
.home-design-grid .design-thumb canvas { height: 150px; }
.view-switch { display: flex; gap: .4rem; }
.view-switch button { display: inline-flex; align-items: center; gap: .35rem; }
.view-switch button[aria-pressed=true] { border-color: var(--accent); color: var(--accent); background: var(--panel); }
.explore-toolbar { position: sticky; top: 0; z-index: 2; background: var(--page); padding: .5rem 0; }
.swipe-mode .explore-heading { margin-bottom: .4rem; }
.swipe-mode .explore-heading h1 { font-size: 1.8rem; }
.swipe-mode .showcase-filters { margin: .4rem 0 0; gap: .5rem; }
.swipe-mode .showcase-filters label { display: flex; align-items: center; flex: 0 1 auto; gap: .35rem; }
.swipe-mode .showcase-filters select { max-width: 150px; }
.swipe-feed { height: var(--swipe-height, 65dvh); min-height: 480px; display: flex; flex-direction: column; border: 1px solid var(--soft-border); border-radius: 1rem; background: var(--panel); padding: .75rem; overscroll-behavior: contain; }
.swipe-card { position: relative; flex: 1; min-height: 0; display: grid; grid-template-columns: minmax(0, 1fr) 115px; grid-template-rows: auto minmax(0, 1fr) auto; gap: .5rem .75rem; }
.swipe-caption { grid-column: 1 / -1; }
.swipe-caption h2 { font-size: 1.2rem; margin: 0; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.swipe-caption p { margin: .25rem 0; color: var(--muted); overflow-wrap: anywhere; }
.swipe-chart { grid-column: 1; grid-row: 2; margin: 0; min-height: 0; display: flex; flex-direction: column; align-items: stretch; }
.swipe-chart canvas { width: 100%; flex: 1; min-height: 0; object-fit: contain; image-rendering: pixelated; }
.swipe-chart .output-brand { flex: 0 0 auto; }
.swipe-chart .brand-mark { width: 80px; height: 55px; flex-basis: 80px; }
.swipe-actions { grid-column: 2; grid-row: 2 / 4; display: flex; flex-direction: column; align-self: end; gap: .3rem; padding-bottom: env(safe-area-inset-bottom, 0px); }
.swipe-actions button { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: .15rem; padding: .4rem .15rem; font-size: .8rem; min-height: 44px; overflow-wrap: anywhere; }
.swipe-actions button[aria-pressed=true] { color: var(--accent); border-color: var(--accent); }
.swipe-open { grid-column: 1; grid-row: 3; display: inline-flex; align-items: center; gap: .4rem; width: fit-content; padding: .5rem; }
.swipe-card .design-action-msg { grid-column: 1 / -1; margin: 0; font-size: .85rem; }
.swipe-nav { display: flex; justify-content: space-between; align-items: center; gap: .5rem; margin-top: .5rem; }
.swipe-nav button { display: inline-flex; gap: .3rem; align-items: center; }
.swipe-end { margin: .3rem 0 0; text-align: center; font-size: .85rem; }
.explore-sheet { position: fixed; inset: auto 0 0; width: min(100% - 1rem, 700px); max-height: 72dvh; margin: 0 auto; padding: 1rem 1rem max(1rem, env(safe-area-inset-bottom)); border: 1px solid var(--border); border-radius: 1rem 1rem 0 0; background: var(--surface); color: var(--text); overflow-y: auto; overscroll-behavior: contain; }
.explore-sheet::backdrop { background: #0009; }
.sheet-heading { display: flex; align-items: center; justify-content: space-between; gap: 1rem; position: sticky; top: -1rem; background: var(--surface); z-index: 1; padding: .5rem 0; }
.sheet-heading h2 { margin: 0; }
.explore-sheet .comment-list { border: 0; padding: 0; }
.explore-sheet > .comment-list > h2 { display: none; }
@media (max-width: 64rem) { .home-design-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 30rem) {
    .home-design-grid { grid-template-columns: minmax(0, 1fr); }
    .home-design-grid .design-thumb canvas { height: 220px; }
    .swipe-card { grid-template-columns: minmax(0, 1fr) 96px; gap: .35rem; }
    .swipe-feed { padding: .5rem; }
    .swipe-actions button { font-size: .75rem; }
}