* { box-sizing: border-box; }
:root { font-family: "Courier New", monospace; color: #202f61; background: #eee9d8; font-synthesis: none; --ink: #202f61; --rule: #aaa997; --blue: #254bce; }
html { scrollbar-gutter: stable; }
body { margin: 0; }
main { max-width: 1240px; margin: auto; padding: 24px 36px; }
header { display: flex; align-items: baseline; justify-content: space-between; padding-bottom: 18px; border-bottom: 2px solid var(--ink); }
.brand { font-size: 18px; font-weight: 700; letter-spacing: -1px; text-transform: uppercase; }
.brand-icon { display: none; }
.badge { font-size: 11px; text-transform: uppercase; }
.intro { display: grid; grid-template-columns: 1fr auto; align-items: end; padding: 28px 0 24px; }
h1 { font-family: Georgia, "Times New Roman", serif; font-size: clamp(52px, 8vw, 96px); font-weight: 400; letter-spacing: -5px; line-height: .95; margin: 0; }
h1 span { font-family: "Courier New", monospace; font-size: 14px; letter-spacing: 0; vertical-align: top; display: inline-block; margin: 8px 0 0 14px; }
.intro > p:last-child { font-size: 12px; line-height: 1.6; max-width: 210px; margin: 0 0 4px 24px; }
.workspace, .box-preview { display: grid; grid-template-columns: minmax(0, 1fr) 280px; border: 1px solid var(--ink); }
.controls { grid-column: 2; grid-row: 1; padding: 24px; border-left: 1px solid var(--ink); background: #e3deca; display: flex; flex-direction: column; }
h2 { font-size: 12px; font-weight: 700; margin: 0 0 8px; text-transform: uppercase; }
.description { font-size: 11px; line-height: 1.5; margin: 0 0 32px; }
label { display: block; font-size: 12px; margin-bottom: 9px; }
.input-wrap { display: flex; align-items: baseline; border-bottom: 2px solid var(--ink); padding-right: 4px; background: #f6f2e4; }
.input-wrap:focus-within { outline: 2px solid var(--blue); outline-offset: 3px; }
input { width: 100%; min-width: 0; padding: 10px 8px; border: 0; outline: none; background: transparent; font: inherit; font-size: 38px; letter-spacing: -2px; color: var(--ink); }
.input-wrap span { font-size: 12px; margin-right: 8px; }
.hint, .download-hint { font-size: 10px; line-height: 1.6; }
.error { font-size: 11px; color: #a42f1a; margin: 0; line-height: 1.5; }
.error:empty { display: none; }
dl { margin: 24px 0 32px; font-size: 11px; }
dl > div { display: flex; justify-content: space-between; gap: 10px; padding: 10px 0; border-bottom: 1px solid var(--rule); }
dt { opacity: .8; }
dd { margin: 0; display: flex; align-items: center; gap: 7px; }
.color-dot { width: 8px; height: 8px; background: #000; }
button { display: flex; justify-content: space-between; flex-direction: row-reverse; align-items: center; gap: 10px; width: 100%; padding: 16px 14px; background: var(--blue); color: #fff; font: inherit; font-size: 12px; font-weight: 700; border: 1px solid var(--blue); cursor: pointer; margin-top: auto; }
button:hover { background: var(--ink); border-color: var(--ink); }
button:focus-visible { outline: 2px solid var(--blue); outline-offset: 3px; }
button:disabled { background: #747a8c; border-color: #747a8c; cursor: not-allowed; }
.download-hint { margin: 10px 0 0; }
.preview-panel { grid-column: 1; grid-row: 1; display: flex; flex-direction: column; min-width: 0; }
.preview-heading { display: flex; justify-content: space-between; gap: 12px; padding: 12px 18px; border-bottom: 1px solid var(--ink); font-size: 10px; }
#dimensions { font-variant-numeric: tabular-nums; }
.preview { position: relative; min-height: 400px; flex: 1; display: flex; align-items: center; justify-content: center; margin: 18px; background-image: linear-gradient(#202f6110 1px, transparent 1px), linear-gradient(90deg, #202f6110 1px, transparent 1px); background-size: 20px 20px; border-left: 1px solid var(--rule); border-top: 1px solid var(--rule); }
.preview::before { content: ""; position: absolute; inset: -5px 0 auto; height: 5px; background: repeating-linear-gradient(90deg, var(--ink) 0 1px, transparent 1px 20px); }
.preview::after { content: ""; position: absolute; inset: 0 auto 0 -5px; width: 5px; background: repeating-linear-gradient(0deg, var(--ink) 0 1px, transparent 1px 20px); }
.preview > svg { width: 78%; max-width: 420px; max-height: 420px; }
.preview-note { font-size: 10px; line-height: 1.5; padding: 10px 18px; margin: 0; border-top: 1px solid var(--rule); }
footer { display: flex; justify-content: space-between; gap: 16px; padding: 14px 0; font-size: 10px; text-transform: uppercase; }
@media (max-width: 700px) { main { padding: 20px; } .intro { padding: 24px 0; } h1 { font-size: 70px; } .intro > p:last-child { max-width: 150px; font-size: 10px; } .workspace { grid-template-columns: 1fr; } .preview-panel { grid-column: 1; grid-row: 1; } .controls { grid-column: 1; grid-row: 2; border-left: 0; border-top: 1px solid var(--ink); padding: 20px; } .preview { min-height: 260px; } .preview > svg { max-height: 270px; } .description { margin-bottom: 20px; } dl { margin: 14px 0 24px; } }
@media (max-width: 380px) { main { padding: 14px; } .brand { font-size: 16px; } .badge { font-size: 9px; } .intro { grid-template-columns: 1fr; } .intro > p:last-child { margin: 18px 0 0; max-width: none; } }
[hidden] { display: none !important; }
.mode-switch { display: flex; gap: 0; margin: 0 0 16px; overflow-x: auto; }
.mode-switch button { width: auto; margin: 0; padding: 12px 18px; background: transparent; color: var(--ink); border: 1px solid var(--ink); font-weight: 400; }
.mode-switch button { flex-shrink: 0; }
#kumiko-controls label:not(:first-child) { margin-top: 16px; }
#kumiko-controls input { font-size: 25px; letter-spacing: -1px; }
.pattern-stepper { align-items: center; padding-right: 0; }
.pattern-stepper button { flex: 0 0 32px; width: 32px; align-self: stretch; justify-content: center; padding: 0; margin: 0; font-size: 20px; background: transparent; color: var(--ink); border: 0; }
.pattern-stepper button { border-left: 1px solid var(--rule); }
.pattern-stepper button:hover { background: #202f6115; }
.pattern-stepper button:disabled { color: #747a8c; background: transparent; opacity: .5; }
.pattern-stepper input { appearance: textfield; }
.pattern-stepper input::-webkit-inner-spin-button, .pattern-stepper input::-webkit-outer-spin-button { appearance: none; margin: 0; }
#kumiko-pattern { width: 100%; padding: 12px 8px; font: inherit; font-size: 12px; color: var(--ink); background: #f6f2e4; border: 1px solid var(--ink); border-bottom-width: 2px; }
#kumiko-pattern:focus-visible { outline: 2px solid var(--blue); outline-offset: 3px; }
.mode-switch button + button { border-left: 0; }
.mode-switch button[aria-pressed="true"] { background: var(--ink); color: #eee9d8; }
.mode-switch button:hover { background: #202f6115; }
.mode-switch button[aria-pressed="true"]:hover { background: var(--ink); }
#kerf-controls label:not(:first-child) { margin-top: 16px; }
#kerf-controls input { font-size: 25px; letter-spacing: -1px; }
body[data-mode="material"] .preview > svg { width: 94%; max-width: none; max-height: 640px; }
.kerf-legend { padding: 14px 18px; border-top: 1px solid var(--rule); font-size: 10px; }
.legend-items { display: flex; flex-wrap: wrap; gap: 12px 18px; margin-bottom: 14px; }
.legend-items span { display: flex; align-items: center; gap: 7px; }
.legend-items i { display: inline-block; width: 18px; height: 7px; }
.legend-original { border-top: 1px dashed #657080; height: 0 !important; }
.legend-added { background: #2164bd66; border: 1px solid #2164bd; }
.legend-removed { background: #b4401f66; border: 1px solid #b4401f; }
.offset-toggle { display: flex; align-items: center; gap: 8px; font-size: 11px; margin: 0; cursor: pointer; }
.offset-toggle input { width: 16px; height: 16px; margin: 0; accent-color: var(--blue); }
#offset-note { margin: 8px 0 0; }
#assembly-controls label:not(:first-child) { margin-top: 16px; }
#assembly-controls input { font-size: 25px; letter-spacing: -1px; }
body:is([data-mode="kumiko"], [data-mode="assembly"]) .preview > svg { display: block; width: 100%; height: auto; max-width: none; max-height: none; }
body:is([data-mode="kumiko"], [data-mode="assembly"]) .preview { align-items: flex-start; padding: 8px; }
.dimension-pair { display: grid; grid-template-columns: minmax(0, 1fr) 36px; gap: 12px; margin-top: 16px; }
.dimension-fields label:first-child { margin-top: 0 !important; }
.dimension-link { position: relative; display: flex; align-items: center; justify-content: center; }
.dimension-link::before { content: ""; position: absolute; left: -8px; right: 17px; top: 46px; bottom: 25px; border: 1px solid var(--rule); border-left: 0; }
.ratio-button { position: relative; z-index: 1; width: 32px; height: 32px; margin: 0; padding: 0; transform: translateY(10px); justify-content: center; flex-direction: row; background: #e3deca; color: var(--ink); border: 1px solid var(--rule); font-family: Georgia, serif; font-size: 22px; font-weight: 400; }
.ratio-button:hover { background: #202f6115; border-color: var(--ink); }
.ratio-button[aria-pressed="true"] { background: var(--ink); color: #eee9d8; border-color: var(--ink); }
.dimension-pair[data-linked="true"] .dimension-link::before { border-color: var(--ink); }
.bottom-controls { min-width: 0; margin: 16px 0; padding: 12px 0 0; border: 0; border-top: 1px solid var(--rule); }
.bottom-controls legend { padding: 0 8px 0 0; font-size: 11px; text-transform: uppercase; }
.segmented-control { display: flex; }
.segmented-control button { flex: 1; justify-content: center; margin: 0; padding: 10px; background: #f6f2e4; color: var(--ink); border: 1px solid var(--ink); }
.segmented-control button + button { border-left: 0; }
.segmented-control button:hover { background: #202f6115; }
.segmented-control button[aria-pressed="true"] { background: var(--ink); color: #eee9d8; }

.material-settings { margin-bottom: 20px; padding: 24px; border: 1px solid var(--ink); background: #e3deca; }
.material-settings h2 { margin-bottom: 20px; }
.section-title { margin: 28px 0 12px; font-size: 18px; }
.material-fields { display: grid; grid-template-columns: minmax(180px, 2fr) repeat(4, minmax(0, 1fr)); gap: 20px; }
.material-settings input { font-size: 25px; letter-spacing: -1px; }
.material-settings input[type="text"] { font-size: 18px; letter-spacing: 0; padding-top: 14px; padding-bottom: 14px; }
.material-settings .hint { margin-bottom: 0; }
@media (max-width: 900px) { .material-fields { grid-template-columns: repeat(2, minmax(0, 1fr)); } .material-name-field { grid-column: 1 / -1; } }
@media (max-width: 700px) { .material-settings { padding: 20px; } .material-fields { gap: 16px; } }
@media (max-width: 380px) { .material-fields { grid-template-columns: 1fr; } }

.material-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 16px; }
.material-actions button { width: auto; margin: 0; flex-direction: row; justify-content: center; padding: 10px 14px; }
.material-actions .secondary-button { background: transparent; color: var(--ink); border-color: var(--ink); }
.material-actions .secondary-button:hover { background: #202f6115; }
#material-status:empty { display: none; }
.saved-materials { margin: 0; }
.material-add-form { margin-top: 24px; padding-top: 20px; border-top: 1px solid var(--rule); }
.saved-materials h2 { margin-bottom: 12px; }
.materials-list { list-style: none; padding: 0; margin: 0; }
.materials-list li { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 14px 0; border-top: 1px solid var(--rule); }
.materials-list strong { font-size: 13px; overflow-wrap: anywhere; }
.materials-list .hint { margin: 6px 0 0; }
.materials-list .material-actions { margin-top: 0; flex-shrink: 0; }
@media (max-width: 700px) { .materials-list li { align-items: flex-start; flex-direction: column; } }

.material-dialog { width: min(680px, calc(100% - 32px)); max-height: calc(100% - 32px); overflow-y: auto; padding: 28px; color: var(--ink); background: #e3deca; border: 1px solid var(--ink); }
.material-dialog::backdrop { background: #202f6170; }
.material-dialog h2 { font-size: 18px; margin-bottom: 24px; }
.material-dialog .material-fields { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.material-dialog .material-name-field { grid-column: 1 / -1; }
.material-dialog input { font-size: 25px; letter-spacing: -1px; }
.material-dialog input[type="text"] { font-size: 18px; letter-spacing: 0; }
.material-dialog .error { margin-top: 16px; }
.material-dialog .material-actions { margin-top: 24px; }
@media (max-width: 380px) { .material-dialog { padding: 20px; } .material-dialog .material-fields { grid-template-columns: 1fr; } }

.material-option { display: flex; align-items: center; gap: 14px; margin: 0; cursor: pointer; min-width: 0; }
.material-option input[type="radio"] { flex: 0 0 18px; width: 18px; height: 18px; padding: 0; margin: 0; accent-color: var(--blue); }
.material-option input:focus-visible { outline: 2px solid var(--blue); outline-offset: 3px; }
.materials-list li:has(input:checked) { background: #202f6108; }
.materials-list .material-actions { align-items: center; }
.material-select { width: 100%; padding: 12px 8px; font: inherit; font-size: 12px; color: var(--ink); background: #f6f2e4; border: 1px solid var(--ink); border-bottom-width: 2px; }
.material-select:focus-visible { outline: 2px solid var(--blue); outline-offset: 3px; }
.tab-material { margin-bottom: 20px; padding-bottom: 12px; border-bottom: 1px solid var(--rule); }
input[readonly] { opacity: .7; }

.box-stage { position: relative; height: min(72vh, 720px); min-height: 460px; background: var(--showcase-background, #eee9d8); }
.box-canvas { width: 100%; height: 100%; }
.box-canvas canvas { display: block; width: 100%; height: 100%; cursor: grab; touch-action: none; }
.box-canvas canvas:active { cursor: grabbing; }
.box-canvas canvas:focus-visible { outline: 2px solid var(--blue); outline-offset: -4px; }
.box-stage > p { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; padding: 24px; margin: 0; text-align: center; pointer-events: none; }
.box-stage > .error:empty { display: none; }
.box-toggles { display: grid; gap: 18px; margin: 14px 0 32px; }
.box-light-control { margin-bottom: 32px; }
.box-light-control label { display: flex; justify-content: space-between; gap: 12px; }
.box-light-control input[type="range"] { padding: 0; margin: 4px 0; height: 24px; accent-color: var(--blue); cursor: pointer; }
.box-pattern-details { margin-bottom: 24px; padding-top: 20px; border-top: 1px solid var(--rule); }
.box-pattern-details h3 { margin: 0 0 8px; font-size: 14px; line-height: 1.4; }
.box-pattern-details p { margin: 0 0 10px; font-size: 11px; line-height: 1.6; }
.box-controls .secondary-button { background: transparent; color: var(--ink); border-color: var(--ink); justify-content: center; }
.box-controls .secondary-button:hover { background: #202f6115; }
@media (max-width: 700px) { .box-preview { grid-template-columns: 1fr; } .box-stage { height: 60vh; min-height: 340px; } .box-preview .preview-heading { flex-wrap: wrap; } }
:root[data-theme="dark"] { --ink: #eee9d8; --rule: #48515f; --blue: #94a6ff; color: var(--ink); background: #10131a; color-scheme: dark; }
:root[data-theme="dark"] .controls,
:root[data-theme="dark"] .material-settings,
:root[data-theme="dark"] .material-dialog { background: #1a202a; }
:root[data-theme="dark"] .input-wrap,
:root[data-theme="dark"] .material-select,
:root[data-theme="dark"] #kumiko-pattern { background: #252d39; color: var(--ink); }
:root[data-theme="dark"] .mode-switch button[aria-pressed="true"] { background: var(--ink); color: #10131a; }
:root[data-theme="dark"] .mode-switch button:hover,
:root[data-theme="dark"] .box-controls .secondary-button:hover { background: #eee9d820; }
:root[data-theme="dark"] .mode-switch button[aria-pressed="true"]:hover { background: var(--ink); }
:root[data-theme="dark"] .error { color: #ffb59d; }

.pattern-picker-trigger { display: flex; flex-direction: row; gap: 10px; width: 100%; margin: 0; padding: 8px; min-height: 66px; text-align: left; color: var(--ink); background: #f6f2e4; border: 1px solid var(--ink); border-bottom-width: 2px; font-weight: 400; }
.pattern-picker-trigger:hover { color: var(--ink); background: #eee9d8; }
.pattern-picker-swatch { display: block; flex: 0 0 58px; width: 58px; height: 44px; overflow: hidden; background: #f6f2e4; border: 1px solid var(--rule); }
.pattern-picker-swatch svg { display: block; width: 100%; height: 100%; }
.pattern-picker-text { flex: 1; min-width: 0; line-height: 1.4; }
.pattern-picker-text strong { display: block; font-size: 12px; }
.pattern-picker-text small { display: block; margin-top: 3px; font-size: 10px; }
.pattern-picker-arrow { font-size: 20px; }
.pattern-picker-trigger[aria-expanded="true"] .pattern-picker-arrow { transform: rotate(180deg); }
.pattern-picker-list { position: fixed; z-index: 20; overflow-y: auto; overscroll-behavior: contain; padding: 4px; background: #f6f2e4; border: 1px solid var(--ink); box-shadow: 4px 6px 0 #202f6124; }
.pattern-picker-option { display: flex; align-items: center; gap: 10px; padding: 8px; min-height: 62px; cursor: pointer; border: 1px solid transparent; color: var(--ink); }
.pattern-picker-option + .pattern-picker-option { border-top-color: var(--rule); }
.pattern-picker-option:hover, .pattern-picker-option:focus { background: #202f6110; outline: none; }
.pattern-picker-option:focus-visible { border-color: var(--blue); outline: 2px solid var(--blue); outline-offset: -2px; }
.pattern-picker-option[aria-selected="true"] { background: #202f6118; }
.pattern-picker-check { width: 14px; flex: 0 0 14px; visibility: hidden; }
.pattern-picker-option[aria-selected="true"] .pattern-picker-check { visibility: visible; }
:root[data-theme="dark"] .pattern-picker-trigger,
:root[data-theme="dark"] .pattern-picker-list { background: #252d39; }
:root[data-theme="dark"] .pattern-picker-trigger:hover,
:root[data-theme="dark"] .pattern-picker-option:hover,
:root[data-theme="dark"] .pattern-picker-option:focus { background: #343e50; }
:root[data-theme="dark"] .pattern-picker-option[aria-selected="true"] { background: #3e4961; }