/* Layout : établi à deux colonnes — réglages à gauche, aperçu + liste des blocs à droite ; une colonne sur mobile. */
:root {
  --bg: #eeefeb;
  --panel: #fbfbf8;
  --ink: #1c1e1d;
  --muted: #646a66;
  --line: #d4d7d1;
  --accent: #d7192a;
  --accent-ink: #ffffff;
  --viewer: #e2e4df;
  --warn: #a35a00;
  --warn-bg: #fff1dc;
  --font-ui: "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #161817; --panel: #1f2220; --ink: #e9ebe7; --muted: #9aa19c; --line: #353a37;
    --accent: #ff4d5c; --accent-ink: #1b0003; --viewer: #262a28; --warn: #ffb35c; --warn-bg: #3a2a12;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #161817; --panel: #1f2220; --ink: #e9ebe7; --muted: #9aa19c; --line: #353a37;
  --accent: #ff4d5c; --accent-ink: #1b0003; --viewer: #262a28; --warn: #ffb35c; --warn-bg: #3a2a12;
  color-scheme: dark;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { margin: 0; }
body {
  background: var(--bg); color: var(--ink); font: 14px/1.45 var(--font-ui);
  padding-left: max(16px, env(safe-area-inset-left, 0px));
  padding-right: max(16px, env(safe-area-inset-right, 0px));
  padding-block: 20px 40px;
}
header { display: flex; flex-wrap: wrap; align-items: baseline; gap: 6px 18px; margin-bottom: 18px; }
h1 { font-size: 22px; margin: 0; letter-spacing: -0.01em; text-wrap: balance; }
h1 b { color: var(--accent); }
header p { margin: 0; color: var(--muted); max-width: 70ch; }
#theme { width: auto; margin-left: auto; align-self: center; }
.layout { display: grid; grid-template-columns: minmax(300px, 360px) minmax(0, 1fr); gap: 18px; align-items: start; }
@media (max-width: 860px) { .layout { grid-template-columns: minmax(0, 1fr); } }
aside { display: flex; flex-direction: column; gap: 12px; }
/* Écran large : la page tient dans la fenêtre, les réglages défilent dans leur colonne et l'aperçu 3D reste affiché */
@media (min-width: 861px) {
  body { height: 100vh; height: 100dvh; display: flex; flex-direction: column; padding-block: 16px 8px; }
  header, footer, main > * { flex: none; }
  footer { margin-top: 8px; }
  .layout { flex: 1; min-height: 0; grid-template-rows: minmax(0, 1fr); align-items: stretch; }
  aside, main { min-height: 0; overflow-y: auto; overscroll-behavior: contain; scrollbar-width: thin; }
  aside { padding-right: 4px; }
}
section.card { background: var(--panel); border: 1px solid var(--line); border-radius: 8px; padding: 14px; display: flex; flex-direction: column; gap: 10px; min-width: 0; }
h2 { font-size: 11px; text-transform: uppercase; letter-spacing: 0.09em; color: var(--muted); margin: 0; font-weight: 600; }
label.field { display: grid; grid-template-columns: 1fr 96px; align-items: center; gap: 8px; }
label.field span small { color: var(--muted); font-family: var(--font-mono); font-size: 11px; }
input[type=number], input[type=text], select {
  width: 100%; font: inherit; color: var(--ink); background: var(--bg); border: 1px solid var(--line);
  border-radius: 5px; padding: 5px 7px; min-width: 0;
}
input[type=number] { font-family: var(--font-mono); text-align: right; font-variant-numeric: tabular-nums; }
input:focus-visible, select:focus-visible, button:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
#text { font-size: 18px; font-weight: 600; }
.row { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
button {
  font: inherit; font-weight: 500; color: var(--ink); background: var(--bg); border: 1px solid var(--line);
  border-radius: 5px; padding: 6px 10px; cursor: pointer;
}
button:hover { border-color: var(--muted); }
button.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); font-weight: 600; }
button:disabled { opacity: .5; cursor: default; }
.hint { color: var(--muted); font-size: 12px; margin: 0; }
/* Ruban des lettres : clic = couleur, ciseaux = découpe. Fond = couleur de fond de l'enseigne, quel que soit le thème */
.chips { display: flex; flex-wrap: wrap; align-items: stretch; gap: 2px 0; padding: 6px; background: var(--chips-bg, #f2f2ef); border: 1px solid var(--line); border-radius: 6px; min-height: 52px; }
.chip { font-family: "BannerFont", var(--font-ui); font-size: 28px; line-height: 1; min-width: 22px; padding: 6px 4px; border: 0; background: transparent; border-radius: 4px; cursor: pointer; }
.chip:hover { background: rgb(128 128 128 / .18); }
.chip.space { width: 14px; cursor: default; }
.gap { width: 16px; padding: 0; border: 0; background: transparent; display: grid; place-items: center; color: rgb(128 128 128 / .45); cursor: pointer; font-size: 12px; }
.gap::before { content: ""; width: 2px; height: 70%; background: currentColor; border-radius: 1px; }
.gap.on { color: var(--accent); }
.gap.on::before { width: 3px; background: repeating-linear-gradient(var(--accent) 0 4px, transparent 4px 7px); }
.gap:hover { color: rgb(128 128 128 / .85); }
.colors { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.colors label { display: flex; flex-direction: column; gap: 4px; font-size: 12px; color: var(--muted); align-items: flex-start; }
input[type=color] { width: 100%; height: 30px; border: 1px solid var(--line); border-radius: 5px; padding: 2px; background: var(--bg); cursor: pointer; }
.check { display: flex; gap: 8px; align-items: center; }
main { display: flex; flex-direction: column; gap: 12px; min-width: 0; }
.viewer { position: relative; background: var(--viewer); border: 1px solid var(--line); border-radius: 8px; overflow: hidden; height: min(58vh, 520px); min-height: 280px; }
.viewer canvas { display: block; width: 100%; height: 100%; touch-action: none; }
.viewer .tools { position: absolute; top: 10px; right: 10px; display: flex; gap: 6px; flex-wrap: wrap; justify-content: flex-end; }
.viewer .tools button { background: var(--panel); font-size: 12px; padding: 4px 8px; }
.viewer .tools button[aria-pressed=true] { border-color: var(--accent); color: var(--accent); }
#status { position: absolute; left: 10px; bottom: 10px; font-family: var(--font-mono); font-size: 12px; background: var(--panel); border: 1px solid var(--line); border-radius: 4px; padding: 3px 8px; color: var(--muted); }
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)); gap: 10px; }
.stat { background: var(--panel); border: 1px solid var(--line); border-radius: 8px; padding: 10px 12px; }
.stat b { display: block; font-family: var(--font-mono); font-size: 18px; font-weight: 500; font-variant-numeric: tabular-nums; }
.stat span { color: var(--muted); font-size: 12px; }
.fixinfo { background: var(--panel); border: 1px solid var(--line); border-radius: 8px; padding: 10px 12px; font-size: 13px; }
.fixinfo b { font-family: var(--font-mono); font-weight: 500; font-variant-numeric: tabular-nums; }
.warnings { display: flex; flex-direction: column; gap: 6px; }
.warnings div { background: var(--warn-bg); color: var(--warn); border-radius: 6px; padding: 7px 10px; font-size: 13px; }
.table-wrap { overflow-x: auto; background: var(--panel); border: 1px solid var(--line); border-radius: 8px; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); white-space: nowrap; }
th { font-size: 11px; text-transform: uppercase; letter-spacing: 0.07em; color: var(--muted); font-weight: 600; }
td.num { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }
td.letters { font-family: "BannerFont", var(--font-ui); font-size: 20px; }
tr:last-child td { border-bottom: 0; }
td .row { flex-wrap: nowrap; gap: 4px; }
td button { font-size: 12px; padding: 3px 7px; }
.bad { color: var(--warn); font-weight: 600; }
footer { margin-top: 28px; color: var(--muted); font-size: 12px; }
footer a { color: inherit; }
.foot { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; justify-content: space-between; }
.calcbar { display: flex; flex-wrap: wrap; gap: 8px 14px; align-items: center; }
.calcbar .kbd { font-family: var(--font-mono); font-size: 11px; margin-left: auto; }
#btnRun.dirty { box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 35%, transparent); }
#dirtyHint { color: var(--warn); font-weight: 500; }
@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }