:root {
  color-scheme: light;
  font: 96%/1.45 "Segoe UI", system-ui, sans-serif;
  --bg: #f6f5f1;
  --surface: #fffefa;
  --ink: #292d29;
  --muted: #596255;
  --border: #ddded6;
  --accent: #bd4932;
  --accent-dark: #9b3724;
  --accent-wash: #f5e9e3;
  --hover: #efeee8;
  --motion-duration: 210ms;
  --motion-ease: cubic-bezier(.2, .7, .2, 1);
  color: var(--ink);
  background: var(--bg);
}
*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }
body, h1, h2, p { margin: 0; }
input, button, select { font: inherit; color: inherit; }
button, summary, select, input[type="checkbox"], input[type="range"], input[type="color"] { cursor: pointer; }
summary { list-style: none; }
summary::-webkit-details-marker { display: none; }
a { color: var(--accent-dark); text-underline-offset: .18em; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
button:disabled { cursor: default; opacity: .35; }
svg { display: block; }
[data-icon] { display: inline-flex; flex: none; align-items: center; }
.lucide { width: 1.05rem; height: 1.05rem; }
.button, .settings-section > summary, .type-choice, .paper-options select {
  transition: background-color var(--motion-duration), border-color var(--motion-duration),
    color var(--motion-duration), opacity var(--motion-duration);
}

.app-shell {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  gap: .8rem;
  height: 100dvh;
  max-width: 100rem;
  margin-inline: auto;
  padding-inline: clamp(.85rem, 2.8vw, 2.25rem);
}
.site-header {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: clamp(.7rem, 2vw, 1.7rem);
  min-height: 4.55rem;
  border-bottom: 1px solid var(--border);
}
.brand { display: flex; align-items: center; gap: .5rem; font-size: 1.45rem; font-weight: 650; letter-spacing: -.045em; }
.brand-period { color: var(--accent); }
.header-intro { padding-left: clamp(.7rem, 2vw, 1.7rem); border-left: 1px solid var(--border); }
.header-intro h1 { font: 400 clamp(1.1rem, 1.9vw, 1.52rem)/1.15 Georgia, serif; letter-spacing: -.02em; }
.header-intro p { color: var(--muted); font-size: .76rem; margin-top: .23rem; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .42rem;
  min-height: 2.2rem;
  padding: .34rem .65rem;
  border: 1px solid transparent;
  border-radius: .42rem;
  background: transparent;
  font-size: .77rem;
  font-weight: 550;
  line-height: 1.2;
  text-decoration: none;
  text-align: center;
}
.quiet { color: var(--muted); }
.quiet:hover:not(:disabled), .language-control[open] > summary { background: var(--hover); color: var(--ink); }
.secondary { border-color: var(--border); color: var(--ink); background: var(--surface); }
.secondary:hover { background: var(--hover); }
.primary { border-color: var(--accent); background: var(--accent); color: white; }
.primary:hover { background: var(--accent-dark); border-color: var(--accent-dark); }
.icon-only { padding-inline: 0; min-width: 2.2rem; }
.language-control { position: relative; z-index: 2; }
.language-control summary .lucide { width: .9rem; height: .9rem; }
.language-control summary [data-icon="chevron-down"] .lucide { width: .72rem; height: .72rem; }
.language-control summary [data-icon="chevron-down"],
.disclosure { transition: transform var(--motion-duration) var(--motion-ease); }
.language-control[open] summary [data-icon="chevron-down"] { transform: rotate(180deg); }
.language-control::details-content { transition: content-visibility var(--motion-duration) allow-discrete; }
.language-menu {
  position: absolute;
  right: 0;
  top: calc(100% + .4rem);
  display: grid;
  width: 11rem;
  max-height: min(27rem, 70dvh);
  overflow: auto;
  overscroll-behavior: contain;
  padding: .28rem;
  border: 1px solid var(--border);
  border-radius: .5rem;
  background: var(--surface);
  box-shadow: 0 .65rem 2rem #35332c1e;
  opacity: 0;
  transform: translateY(-5px);
  transition: opacity var(--motion-duration), transform var(--motion-duration) var(--motion-ease);
}
.language-control[open] .language-menu { opacity: 1; transform: none; }
@starting-style {
  .language-control[open] .language-menu { opacity: 0; transform: translateY(-5px); }
}
.language-menu button { justify-content: space-between; text-align: start; }
.language-menu button[aria-pressed="true"] { color: var(--accent-dark); background: var(--accent-wash); }
.language-menu button[aria-pressed="false"] [data-icon] { visibility: hidden; }

.workspace {
  display: grid;
  grid-template-columns: minmax(17.5rem, 22rem) minmax(0, 1fr);
  gap: 1rem;
  min-height: 0;
}
.panel {
  min-width: 0;
  min-height: 0;
  border: 1px solid var(--border);
  border-radius: .75rem;
  background: var(--surface);
}
.settings, .preview { display: grid; overflow: hidden; }
.settings { grid-template-rows: auto minmax(0, 1fr) auto; }
.preview { position: relative; grid-template-rows: minmax(0, 1fr); }
.panel-heading {
  display: flex;
  min-height: 3.05rem;
  align-items: center;
  justify-content: space-between;
  gap: .5rem;
  padding: .35rem .85rem;
  border-bottom: 1px solid var(--border);
}
h2 { font-size: .88rem; font-weight: 600; }
.settings-scroll, .stage, .dialog-content {
  min-height: 0;
  overflow: auto;
  overscroll-behavior: contain;
  scrollbar-width: thin;
  scrollbar-color: #c5c7bc transparent;
}
.settings-scroll { overflow-x: hidden; scrollbar-gutter: stable; }
.settings-section { border-bottom: 1px solid var(--border); }
.settings-section::details-content {
  interpolate-size: allow-keywords;
  block-size: 0;
  overflow: clip;
  opacity: 0;
  transition: block-size var(--motion-duration) var(--motion-ease), opacity var(--motion-duration),
    content-visibility var(--motion-duration) allow-discrete;
}
.settings-section[open]::details-content { block-size: auto; opacity: 1; }
.settings-section > summary { display: flex; align-items: center; gap: .55rem; min-height: 2.85rem; padding: .45rem .85rem; font-size: .82rem; font-weight: 600; }
.settings-section > summary:hover { background: var(--hover); }
.settings-section > summary:focus-visible { outline-offset: -3px; }
.settings-section > summary [data-icon] { color: var(--muted); }
.disclosure { margin-inline-start: auto; }
.settings-section[open] > summary .disclosure { transform: rotate(180deg); }
.section-content { padding: .2rem .85rem 1rem; }
.preset-grid, .paper-options { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .5rem; }
.preset {
  display: grid;
  justify-content: stretch;
  gap: .2rem;
  min-height: 2.8rem;
  padding: .45rem .5rem;
  text-align: start;
}
.preset span { color: var(--muted); font-size: .72rem; font-weight: 400; }
.preset[aria-pressed="true"] { border-color: #d59887; background: var(--accent-wash); color: var(--accent-dark); }
.template-panel { display: grid; gap: .5rem; }
.template-heading { display: flex; align-items: center; justify-content: space-between; gap: .4rem; }
.template-panel h3 { margin: 0; font-size: .78rem; font-weight: 600; }
.template-panel .template-personal { margin-top: .2rem; padding-top: .65rem; border-top: 1px solid var(--border); }
.template-heading .button { min-height: 1.55rem; padding: .15rem .3rem; font-size: .7rem; }
.template-card { position: relative; min-width: 0; }
.template-card .preset { width: 100%; height: 100%; padding-inline-end: 1.6rem; overflow-wrap: anywhere; }
.template-remove { position: absolute; inset: .12rem .12rem auto auto; min-height: 1.5rem; min-width: 1.5rem; padding: 0; }
.template-remove .lucide { width: .8rem; height: .8rem; }
.template-list { display: grid; gap: .3rem; margin: 0; padding: 0; list-style: none; }
#save-template label { display: block; margin-bottom: .22rem; color: var(--muted); font-size: .73rem; }
.template-form-row, .template-backup { display: flex; gap: .35rem; }
.template-form-row input { flex: 1; min-width: 0; padding: .3rem .45rem; border: 1px solid var(--border); border-radius: .38rem; font-size: .77rem; }
.template-form-row .button { flex: none; max-width: 55%; }
.template-backup { flex-wrap: wrap; }
.template-backup .button { flex: 1; }
.template-list:empty, #template-status:empty { display: none; }
#template-status[data-error] { color: var(--accent-dark); }
.paper-options label { display: grid; gap: .25rem; min-width: 0; font-size: .77rem; }
.paper-options select {
  min-height: 2rem;
  min-width: 0;
  padding-inline: .38rem;
  border: 1px solid var(--border);
  border-radius: .35rem;
  background: var(--surface);
}
@supports (appearance: base-select) and selector(select::picker(select)) {
  .paper-options select, .paper-options select::picker(select) { appearance: base-select; }
  .paper-options select::picker(select) {
    border: 1px solid var(--border);
    border-radius: .35rem;
    background: var(--surface);
    box-shadow: 0 .4rem 1rem #35332c1e;
    opacity: 0;
    transform: translateY(-4px);
    transition: opacity var(--motion-duration), transform var(--motion-duration) var(--motion-ease),
      display var(--motion-duration) allow-discrete, overlay var(--motion-duration) allow-discrete;
  }
  .paper-options select:open::picker(select) { opacity: 1; transform: none; }
  @starting-style {
    .paper-options select:open::picker(select) { opacity: 0; transform: translateY(-4px); }
  }
}
fieldset { min-width: 0; border: 0; padding: 0; margin: 0; }
legend { padding: 0; margin: 0 0 .4rem; font-size: .76rem; color: var(--muted); }
.type-options { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: .28rem; }
.type-options label { position: relative; cursor: pointer; min-width: 0; }
.type-options input { position: absolute; inset: 0; width: 100%; height: 100%; margin: 0; opacity: 0; cursor: pointer; }
.type-choice {
  display: grid;
  align-content: center;
  justify-items: center;
  gap: .24rem;
  min-height: 3.1rem;
  padding: .25rem .08rem;
  border: 1px solid var(--border);
  border-radius: .38rem;
  font-size: .68rem;
  text-align: center;
  overflow-wrap: anywhere;
}
.type-options input:checked + .type-choice { color: var(--accent-dark); border-color: #d59887; background: var(--accent-wash); font-weight: 600; }
.type-options input:focus-visible + .type-choice { outline: 2px solid var(--accent); outline-offset: 2px; }
.type-options input:hover + .type-choice { border-color: #b48c7e; }
.type-glyph { display: flex; flex-direction: column; justify-content: center; gap: 2px; width: 1.25rem; height: 1rem; }
.type-glyph i { height: 1px; background: currentColor; }
.type-glyph .fine-rule { opacity: .48; }

.measure-row { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: center; gap: .16rem .45rem; margin-top: .65rem; font-size: .77rem; }
.measure-row > label { font-weight: 500; }
.measure {
  display: inline-flex;
  align-items: center;
  gap: .15rem;
  min-width: 0;
  padding: 0 .42rem;
  border: 1px solid var(--border);
  border-radius: .35rem;
  color: var(--muted);
  font-size: .72rem;
}
.measure:focus-within { outline: 2px solid var(--accent); outline-offset: 2px; }
.measure input {
  appearance: textfield;
  width: 2.9rem;
  min-width: 0;
  padding: .3rem 0;
  border: 0;
  outline: none;
  background: transparent;
  text-align: end;
  color: var(--ink);
  font-weight: 550;
  font-variant-numeric: tabular-nums;
}
.measure input::-webkit-inner-spin-button, .measure input::-webkit-outer-spin-button { appearance: none; margin: 0; }
.measure-row input[type="range"] { grid-column: 1 / -1; width: 100%; height: 1.35rem; margin: 0; accent-color: var(--accent); }
.calligraphy-measure { grid-template-columns: minmax(0, 1.35fr) minmax(3.5rem, 1fr) 3rem; }
.calligraphy-measure input[type="range"] { grid-column: auto; min-width: 0; }
.calligraphy-measure output { color: var(--muted); font-size: .72rem; font-variant-numeric: tabular-nums; text-align: end; }
.advanced { border-top: 1px solid var(--border); margin-top: .6rem; }
:is(#calligraphy, #upper-field, #lower-field) {
  opacity: 1;
  transition: opacity var(--motion-duration), display var(--motion-duration) allow-discrete;
}
:is(#calligraphy, #upper-field, #lower-field)[hidden] { opacity: 0; pointer-events: none; }
@starting-style {
  :is(#calligraphy, #upper-field, #lower-field):not([hidden]) { opacity: 0; }
}
.ink-options { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: .45rem; margin-top: .6rem; }
.ink-color { display: inline-flex; align-items: center; gap: .35rem; font-size: .77rem; }
.ink-color input { width: 2rem; height: 1.65rem; padding: .12rem; border: 1px solid var(--border); border-radius: .35rem; background: var(--surface); }
.margin-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .52rem; }
.margin-grid label { display: grid; gap: .22rem; font-size: .78rem; }
.margin-grid .measure input { flex: 1; width: 100%; }
.guides { display: flex; flex-wrap: wrap; gap: .3rem .8rem; margin-top: .9rem; }
.guides label, .checkbox { display: inline-flex; align-items: center; gap: .37rem; font-size: .77rem; }
input[type="checkbox"] { width: 1rem; height: 1rem; margin: 0; accent-color: var(--accent); flex: none; }
.code-controls { display: grid; gap: .65rem; }
.hint { color: var(--muted); font-size: .76rem; }
#code-status:empty, #lightning-status:empty { display: none; }
#code-status[data-error] { color: var(--accent-dark); }
.current-code {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: .25rem;
  min-width: 0;
  padding-left: .55rem;
  border: 1px solid var(--border);
  border-radius: .38rem;
  background: var(--bg);
}
.current-code input {
  flex: 1;
  min-width: 0;
  padding: 0;
  border: 0;
  background: transparent;
  font: 600 .76rem/1.45 ui-monospace, Consolas, monospace;
}
#restore-form label { display: block; margin-bottom: .25rem; font-size: .77rem; }
.restore-row, .actions { display: flex; gap: .4rem; }
.restore-row input { width: 100%; min-width: 0; border: 1px solid var(--border); border-radius: .38rem; padding: .32rem .45rem; font: .78rem ui-monospace, Consolas, monospace; }
.actions { padding: .7rem .8rem; border-top: 1px solid var(--border); }
.actions .primary { flex: 1; min-width: 0; }

.preview-overlay {
  position: absolute;
  inset-inline-start: .65rem;
  border: 1px solid var(--border);
  border-radius: .5rem;
  background: var(--surface);
  color: var(--muted);
  box-shadow: 0 .14rem .5rem #333c2a18;
  font-size: .72rem;
  font-variant-numeric: tabular-nums;
}
.paper-info {
  inset-block-start: .65rem;
  display: grid;
  padding: .3rem .48rem;
  line-height: 1.35;
  pointer-events: none;
}
.paper-info strong { color: var(--ink); font-weight: 600; }
.zoom { inset-block-end: .65rem; display: flex; align-items: center; gap: .1rem; padding: .15rem; }
.zoom .button { min-height: 2rem; min-width: 2rem; }
.zoom .lucide { width: .95rem; height: .95rem; }
#zoom-value { min-width: 2.65rem; text-align: center; }
.zoom-fit { margin-inline-start: .16rem; }
.stage {
  --gutter: 16px;
  background-color: #e9ebe4;
  background-image: radial-gradient(#cbd0c4 .75px, transparent .75px);
  background-size: 12px 12px;
}
.stage:focus-visible { outline-offset: -3px; }
.canvas { display: grid; place-items: center; width: max-content; min-width: 100%; min-height: 100%; padding: var(--gutter); }
@media (hover: hover) and (pointer: fine) {
  .stage[data-zoomed] .canvas { cursor: grab; }
  .stage[data-dragging], .stage[data-dragging] .canvas { cursor: grabbing; user-select: none; }
}
#sheet {
  display: block;
  width: var(--sheet-width, 16rem);
  height: auto;
  aspect-ratio: var(--paper-aspect, 210 / 297);
  background: white;
  box-shadow: 0 1px 3px #333c2a24, 0 8px 24px #333c2a19;
}
.project-promo {
  position: fixed;
  z-index: 34;
  inset-inline-end: max(clamp(1.2rem, 4vw, 3rem), env(safe-area-inset-right));
  inset-block-end: max(clamp(1.5rem, 5vh, 3rem), calc(env(safe-area-inset-bottom) + 1rem));
  display: flex;
  align-items: center;
  gap: .2rem;
  width: max-content;
  max-width: calc(100% - 3rem);
  padding: .25rem .3rem .4rem .55rem;
  border: 1px solid #ddded6;
  border-radius: .5rem;
  background: #fffefa;
  box-shadow: 0 .3rem 1.15rem #35332c25;
}
.project-promo a { display: flex; align-items: center; gap: .5rem; min-width: 0; padding: .25rem; color: var(--ink); text-decoration: none; }
.project-promo a:hover { color: #9b3724; }
.promo-symbol { display: block; flex: none; width: 1.75rem; height: 1.75rem; object-fit: contain; }
.promo-copy { min-width: 0; }
.project-promo strong { display: block; font-size: .82rem; }
.promo-text { display: block; font-size: .72rem; color: #596255; }
.promo-close { display: grid; place-items: center; flex: none; width: 2.2rem; height: 2.2rem; border: 0; border-radius: .42rem; padding: 0; background: transparent; color: #596255; }
.promo-close:hover { background: #efeee8; color: var(--ink); }
.project-promo .lucide { width: 1.05rem; height: 1.05rem; }
.promo-progress { position: absolute; inset: auto .35rem .16rem; height: 2px; border-radius: 2px; background: var(--accent); transform-origin: left; pointer-events: none; }
@media (prefers-reduced-motion: reduce) {
  .promo-progress { visibility: hidden; }
}

.site-footer {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  gap: .4rem;
  padding-bottom: .32rem;
  color: var(--muted);
  font-size: .68rem;
  line-height: 1.25;
}
.footer-motto { text-wrap: balance; }
.footer-credit { display: flex; align-items: center; justify-content: center; gap: 4px; white-space: nowrap; }
.family-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: #234d43;
  font: 700 15px/1 Georgia, "Times New Roman", serif;
  letter-spacing: -.5px;
  text-decoration: none;
}
.family-link img { flex: none; }
.family-dot { color: #b84f34; }
.family-link:hover { text-decoration: underline; text-underline-offset: 3px; }
.footer-tools { display: flex; flex-wrap: wrap; justify-content: end; gap: .1rem; }
.footer-tools .button { min-height: 1.5rem; padding: .12rem .32rem; gap: .25rem; font-size: inherit; font-weight: 450; }
.footer-tools .lucide { width: .82rem; height: .82rem; }
.version-button { font-variant-numeric: tabular-nums; }
dialog {
  width: min(33rem, calc(100% - 1.8rem));
  max-height: min(34rem, 88dvh);
  padding: 0;
  border: 1px solid var(--border);
  border-radius: .7rem;
  color: var(--ink);
  background: var(--surface);
  box-shadow: 0 18px 60px #2828203b;
  opacity: 0;
  transform: translateY(7px) scale(.985);
  transition: opacity var(--motion-duration), transform var(--motion-duration) var(--motion-ease),
    display var(--motion-duration) allow-discrete, overlay var(--motion-duration) allow-discrete;
}
dialog[open] { display: flex; flex-direction: column; opacity: 1; transform: none; }
dialog::backdrop {
  background: #25282055;
  opacity: 0;
  transition: opacity var(--motion-duration), display var(--motion-duration) allow-discrete,
    overlay var(--motion-duration) allow-discrete;
}
dialog[open]::backdrop { opacity: 1; }
@starting-style {
  dialog[open] { opacity: 0; transform: translateY(7px) scale(.985); }
  dialog[open]::backdrop { opacity: 0; }
}
.dialog-heading { display: flex; justify-content: space-between; align-items: center; gap: 1rem; border-bottom: 1px solid var(--border); padding: .55rem 1rem; }
.dialog-content { padding: 1rem; font-size: .87rem; }
.dialog-content ul { margin: .65rem 0 0; padding-left: 1.2rem; }
.release { display: flex; align-items: baseline; justify-content: space-between; gap: .4rem; margin-bottom: .45rem; color: var(--muted); }
.release strong { color: var(--accent-dark); }
.previous-release { margin-top: .85rem; padding-top: .65rem; border-top: 1px solid var(--border); }
.v4v-intro { display: grid; grid-template-columns: auto minmax(0, 1fr); align-items: start; gap: .75rem; }
.lightning-qr { display: block; padding: .15rem; background: white; border: 1px solid var(--border); border-radius: .35rem; }
.lightning-qr img { display: block; width: min(112px, 22vw); height: auto; }
.lightning-label { display: block; margin: .55rem 0 .25rem; font-size: .72rem; }
.dialog-links { display: flex; flex-wrap: wrap; gap: .45rem 1rem; margin-top: .9rem; border-top: 1px solid var(--border); padding-top: .65rem; }

@media (max-width: 48rem) {
  .app-shell { gap: .55rem; padding-inline: .55rem; }
  .site-header { min-height: 3.55rem; gap: .55rem; }
  .header-intro { padding-left: .55rem; }
  .header-intro p { display: none; }
  .brand { font-size: 1.25rem; gap: .28rem; }
  .brand img { width: 1.55rem; height: 1.55rem; }
  .workspace { grid-template-columns: minmax(0, 1fr); grid-template-rows: minmax(9rem, .95fr) minmax(0, 1.05fr); gap: .55rem; }
  .preview { grid-row: 1; }
  .settings { grid-row: 2; }
  .panel-heading { min-height: 2.45rem; padding: .2rem .55rem; }
  .preview-overlay { inset-inline-start: .42rem; }
  .paper-info { inset-block-start: .42rem; }
  .zoom { inset-block-end: .42rem; }
  .stage { --gutter: 9px; }
  .settings-section > summary { min-height: 2.35rem; }
  .actions { padding: .38rem .55rem; }
  .site-footer { gap: .3rem; padding-bottom: .24rem; }
}
@media (max-width: 39rem) {
  .footer-tools .footer-label { display: none; }
  .footer-tools .button { min-width: 1.5rem; padding-inline: .22rem; }
}
@media (max-width: 24rem) {
  .header-intro h1 { font-size: 1rem; }
}
@media (max-width: 26rem) {
  .footer-credit { flex-direction: column; gap: .05rem; }
}
@media (max-height: 30rem) {
  .app-shell { min-height: 30rem; }
}
@media (prefers-reduced-motion: reduce) {
  :root { --motion-duration: 0ms; }
}
@media print {
  :root, body { margin: 0; padding: 0; background: none; }
  .site-header, .site-footer, .settings, .preview-overlay, .project-promo, dialog { display: none !important; }
  .app-shell, .workspace, .preview, .stage, .canvas { display: contents; }
  #sheet { position: absolute; inset: 0 auto auto 0; width: var(--paper-width, 210mm); height: var(--paper-height, 297mm); background: none; box-shadow: none; print-color-adjust: exact; }
}