:root { color: var(--tools-text); background: var(--tools-bg); font-family: var(--tools-sans); font-synthesis: none; text-rendering: optimizeLegibility; }
* { box-sizing: border-box; }
body { margin: 0; min-width: 0; }
button, input, select { font: inherit; }
button, select, summary, input[type="color"], input[type="checkbox"], input[type="radio"] { cursor: pointer; }
button:disabled { cursor: not-allowed; opacity: .5; }
input, select, button { min-width: 0; }
a { color: inherit; }
[v-cloak] { display: none; }
:focus-visible { outline: 3px solid var(--tools-green); outline-offset: 3px; }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.brand { text-decoration: none; }
main { width: min(1040px, calc(100% - 40px)); margin-inline: auto; }
.hero { max-width: 850px; margin: 38px auto 32px; text-align: center; }
.eyebrow { margin: 0 0 12px; color: var(--tools-green-text); font: 700 .75rem/1.4 var(--tools-mono); letter-spacing: .1em; text-transform: uppercase; }
h1 { margin: 0; font: 500 clamp(2.5rem, 5.5vw, 4.25rem)/1.06 var(--tools-serif); letter-spacing: -.045em; text-wrap: balance; }
.hero-copy { max-width: 670px; margin: 18px auto 0; color: var(--tools-muted); font-size: 1.08rem; line-height: 1.6; text-wrap: pretty; }
.hero-proof { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px 22px; list-style: none; padding: 0; margin: 20px 0 0; color: var(--tools-green-text); font-size: .94rem; }
.hero-proof li { display: inline-flex; align-items: center; gap: 7px; }
.hero-proof svg, .button svg, .icon-button svg, summary svg { width: 18px; height: 18px; flex: 0 0 auto; }
.paper-workspace { overflow: clip; border: 1px solid var(--tools-line); border-radius: 24px; background: var(--tools-surface); box-shadow: 0 8px 30px color-mix(in srgb, var(--tools-text) 4%, transparent); }
.workspace-heading { display: flex; align-items: center; gap: 16px; padding: 22px 28px; border-bottom: 1px solid var(--tools-line); }
.workspace-heading img { width: 90px; height: 60px; object-fit: contain; flex-shrink: 0; }
.workspace-intro { flex: 1; min-width: 0; }
h2 { margin: 0; font: 600 1.55rem/1.18 var(--tools-serif); letter-spacing: -.025em; }
.workspace-intro p { margin: 6px 0 0; color: var(--tools-muted); line-height: 1.45; }
.button { display: inline-flex; justify-content: center; align-items: center; gap: 9px; min-height: 44px; padding: 10px 16px; border: 1px solid var(--tools-line); border-radius: 10px; font-weight: 700; line-height: 1.25; }
.button-primary { min-height: 48px; background: var(--tools-action); color: var(--tools-on-action); border-color: var(--tools-action); }
.button-primary:hover:not(:disabled) { background: var(--tools-action-hover); }
.button-secondary { background: var(--tools-surface); color: var(--tools-text); }
.button-secondary:hover:not(:disabled), .icon-button:hover:not(:disabled) { background: var(--tools-surface-soft); }
.button:active:not(:disabled), .icon-button:active:not(:disabled) { transform: translateY(1px); }
.download { max-width: 270px; flex-shrink: 0; }
.paper-layout { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, .9fr); grid-template-areas: 'primary preview' 'extra preview'; gap: 0 36px; align-items: start; padding: 28px; }
fieldset { margin: 0; padding: 0; border: 0; min-width: 0; }
legend { padding: 0; margin-bottom: 18px; font-size: 1.05rem; font-weight: 700; }
.primary-settings { grid-area: primary; }
.fields { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px 16px; }
.fields > label, .fields > div { min-width: 0; }
label { display: flex; flex-direction: column; gap: 7px; font-size: .94rem; line-height: 1.4; }
.fields > label > span:first-child { flex: 1; display: flex; align-items: flex-end; }
.wide { grid-column: 1 / -1; }
input:not([type="checkbox"]):not([type="radio"]), select { width: 100%; min-height: 44px; padding: 10px 12px; border: 1px solid var(--tools-line); border-radius: 9px; background: var(--tools-surface); color: var(--tools-text); }
select { padding-right: 26px; }
input[aria-invalid="true"] { border-color: var(--tools-red); }
input[type="checkbox"], input[type="radio"] { width: 18px; height: 18px; margin: 0; accent-color: var(--tools-action); flex: 0 0 auto; }
.checkbox { flex-direction: row; align-items: center; gap: 10px; min-height: 44px; }
.layout-mode { margin-block: 24px 18px; }
.layout-mode legend { font-size: .94rem; font-weight: 500; margin-bottom: 8px; }
.segmented { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.segmented label { display: flex; flex-direction: row; align-items: center; gap: 8px; min-height: 52px; padding: 10px 12px; border: 1px solid var(--tools-line); border-radius: 10px; cursor: pointer; }
.segmented .selected { background: var(--tools-green-soft); border-color: var(--tools-green); color: var(--tools-green-text); }
.hint { color: var(--tools-muted); font-size: .88rem; line-height: 1.5; margin: 10px 0 0; }
.field-error { color: var(--tools-red); font-size: .88rem; line-height: 1.4; }
.extra-settings { grid-area: extra; margin-top: 24px; }
details { border-top: 1px solid var(--tools-line); }
summary { display: flex; align-items: center; justify-content: space-between; gap: 12px; list-style: none; min-height: 60px; font-weight: 700; line-height: 1.4; }
summary::-webkit-details-marker { display: none; }
summary span { display: flex; }
details[open] > summary svg { transform: rotate(180deg); }
details > fieldset { padding: 4px 0 24px; }
.color-entry { display: grid; grid-template-columns: 48px minmax(0, 1fr); align-items: center; gap: 9px; margin-top: 7px; }
.color-entry input[type="color"] { height: 44px; padding: 5px; }
.color-entry input[type="text"] { font-family: var(--tools-mono); }
.settings-transfer { border-top: 1px solid var(--tools-line); padding-block: 16px; }
.settings-actions { display: flex; flex-wrap: wrap; gap: 8px; }
.settings-actions .button { flex: 1 1 150px; }
.settings-status { color: var(--tools-green-text); font-size: .92rem; line-height: 1.5; }
.reset-actions { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 4px 10px; border-top: 1px solid var(--tools-line); padding-top: 8px; }
.text-button { min-height: 44px; padding: 8px 0; border: 0; background: transparent; color: var(--tools-muted); text-decoration: underline; text-underline-offset: 3px; font-size: .92rem; }
.text-button:hover { color: var(--tools-text); }
.paper-preview { position: sticky; top: 20px; grid-area: preview; min-width: 0; padding: 18px; border-radius: 16px; background: var(--tools-surface-soft); }
.preview-heading { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin: -4px 0 12px; }
h3 { margin: 0; font-size: 1rem; font-weight: 700; }
.icon-button { display: inline-flex; align-items: center; justify-content: center; flex-shrink: 0; width: 44px; height: 44px; border: 1px solid var(--tools-line); border-radius: 9px; background: var(--tools-surface); color: var(--tools-text); }
.paper-stage { display: flex; justify-content: center; align-items: center; padding: 14px; min-height: 220px; background: color-mix(in srgb, var(--tools-line) 40%, var(--tools-surface)); border-radius: 9px; }
.paper-sheet { display: block; width: min(100%, calc(330px * var(--paper-ratio))); height: auto; box-shadow: 0 3px 12px #00000016; background: white; }
.preview-measures { display: grid; gap: 5px; margin-top: 16px; font-size: .91rem; line-height: 1.5; }
.preview-measures span { color: var(--tools-muted); }
.paper-preview .checkbox { margin-top: 12px; }
.paper-preview #guides-hint { margin-top: 0; }
.print-hint { padding-top: 14px; border-top: 1px solid var(--tools-line); margin: 16px 0 0; font-size: .89rem; line-height: 1.55; color: var(--tools-muted); }
.print-hint span { display: block; margin-top: 8px; }
.notice { font-size: .9rem; line-height: 1.5; border-inline-start: 3px solid var(--tools-green); padding-inline-start: 10px; margin-bottom: 0; }
.side-controls { display: flex; gap: 8px; margin-bottom: 14px; }
.side-controls button { flex: 1; }
.side-controls [aria-pressed="true"] { border-color: var(--tools-green); background: var(--tools-green-soft); color: var(--tools-green-text); box-shadow: inset 0 -2px var(--tools-green); }
.invalid-preview { display: grid; justify-items: center; gap: 12px; padding: 18px; color: var(--tools-red); line-height: 1.6; text-align: center; }
.invalid-preview svg { width: 28px; height: 28px; }
.workspace-status, .workspace-error { margin: 0; padding: 14px 28px; border-bottom: 1px solid var(--tools-line); line-height: 1.5; }
.workspace-status { color: var(--tools-green-text); }
.workspace-error { color: var(--tools-red); }
.progress-area { display: flex; align-items: center; gap: 18px; padding: 14px 28px; }
progress { flex: 1; min-width: 0; height: 8px; accent-color: var(--tools-action); }
.preview-dialog { width: min(820px, calc(100% - 24px)); max-height: calc(100dvh - 24px); padding: 20px; border: 1px solid var(--tools-line); border-radius: 16px; background: var(--tools-surface-soft); color: var(--tools-text); }
.preview-dialog::backdrop { background: #0009; }
.dialog-heading { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 16px; }
.large-sheet { display: block; width: 100%; height: auto; background: white; }
@media (prefers-color-scheme: dark) { .paper-stage { background: color-mix(in srgb, var(--tools-bg) 70%, var(--tools-line)); } .paper-sheet { box-shadow: 0 3px 12px #0005; } }
@media (max-width: 820px) {
  .paper-layout { grid-template-columns: minmax(0, 1fr); grid-template-areas: 'primary' 'preview' 'extra'; gap: 24px; }
  .extra-settings { margin-top: 0; }
  .paper-preview { position: static; padding: 20px; }
  .paper-sheet { width: min(100%, calc(310px * var(--paper-ratio))); }
  .workspace-heading { flex-wrap: wrap; }
  .download { max-width: none; width: 100%; }
}
@media (max-width: 620px) {
  main { width: calc(100% - 24px); }
  .hero { margin: 28px auto 24px; }
  h1 { font-size: clamp(2.25rem, 8.8vw, 3.1rem); }
  .hero-copy { font-size: 1rem; margin-top: 14px; }
  .hero-proof { gap: 7px 14px; font-size: .85rem; margin-top: 16px; }
  .paper-workspace { border-radius: 18px; }
  .workspace-heading { gap: 12px; padding: 18px; }
  .workspace-heading img { width: 66px; height: 50px; }
  h2 { font-size: 1.35rem; }
  .workspace-intro p { font-size: .9rem; }
  .paper-layout { padding: 20px 18px; }
  .fields { gap: 16px 12px; }
  .segmented { grid-template-columns: 1fr; }
  .segmented label { min-height: 44px; }
  .paper-preview { padding: 14px; }
  .paper-stage { padding: 12px; }
  .unit-field { grid-column: 1 / -1; }
  .workspace-status, .workspace-error, .progress-area { padding-inline: 18px; }
  .preview-dialog { padding: 14px; }
}
@media (max-width: 360px) { .workspace-heading img { width: 54px; } }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { scroll-behavior: auto; } }