/*
 * Mission Inconnue : styles. Ambiance agence d'espionnage, de nuit : un bureau
 * sombre éclairé par une lampe, des dossiers en papier kraft, une machine à
 * écrire, des tampons rouges, des lingots et une balance en laiton.
 * Mobile d'abord, puis élargi sur grand écran.
 */

:root {
  /* bureau */
  --desk: #141827;
  --desk-2: #1d2338;
  --desk-line: rgba(233, 222, 196, .14);
  --on-desk: #ece4cf;
  --on-desk-soft: #a9a38f;
  /* papier */
  --paper: #efe3c4;
  --paper-2: #e3d2a7;
  --paper-edge: #c9b17a;
  --ink: #26211a;
  --ink-soft: #6b5f49;
  /* objets */
  --case: #2c3240;
  --case-dark: #1b1f29;
  --brass: #c99a3b;
  --brass-dark: #8a6420;
  --brass-light: #ebc970;
  --gold: #f2c14e;
  --gold-dark: #b8860b;
  --gold-light: #fbe39a;
  --red: #c8372d;
  --red-dark: #962419;
  --green: #2e8a62;
  --blue: #3f6fa6;
  --blue-dark: #2b4f7a;
  --balloon: #d9607f;
  --radius: 6px;
  --shadow: 0 1px 0 rgba(0, 0, 0, .25), 0 10px 24px rgba(0, 0, 0, .35);
  --font-type: "Special Elite", "Courier New", ui-monospace, monospace;
  --font-mono: "Courier Prime", "Courier New", ui-monospace, monospace;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; background: var(--desk); }
body {
  margin: 0;
  min-height: 100dvh;
  color: var(--on-desk);
  font: 16px/1.45 var(--font);
  background:
    radial-gradient(ellipse 90% 55% at 50% -8%, rgba(255, 214, 140, .16), transparent 70%),
    radial-gradient(ellipse at 50% 120%, rgba(0, 0, 0, .5), transparent 60%),
    repeating-linear-gradient(90deg, rgba(255, 255, 255, .012) 0 2px, transparent 2px 7px),
    var(--desk);
  background-attachment: fixed;
  -webkit-tap-highlight-color: transparent;
}
a { color: inherit; }
button { font: inherit; color: inherit; }
button:disabled { opacity: .3; cursor: default; }
:focus-visible { outline: 3px solid var(--gold); outline-offset: 2px; }
.noscript { padding: 24px; text-align: center; }

.screen {
  max-width: 560px;
  margin: 0 auto;
  padding: max(12px, env(safe-area-inset-top)) 16px max(16px, env(safe-area-inset-bottom));
  min-height: 100dvh;
}

/* ------------------------------------------------------------------ papier */
.paper, .intro, .stage, .equation, .folder, .evidence, .card, .victory {
  background-color: var(--paper);
  background-image:
    radial-gradient(circle at 20% 10%, rgba(255, 255, 255, .35), transparent 40%),
    radial-gradient(circle at 85% 90%, rgba(150, 110, 40, .12), transparent 45%);
  color: var(--ink);
}
.paper-label {
  display: inline-block;
  font: 13px/1 var(--font-type); letter-spacing: .14em; text-transform: uppercase;
  color: var(--red);
}

/* ------------------------------------------------------------------ tampons */
.stamp {
  display: inline-block;
  padding: 3px 8px 2px;
  border: 2.5px solid currentColor; border-radius: 4px;
  font: 15px/1.1 var(--font-type); letter-spacing: .08em; text-transform: uppercase;
  color: var(--red);
  transform: rotate(-8deg);
  mix-blend-mode: multiply;
  opacity: .88;
}
.stamp-grey { color: #7d7362; }
.stamp-big {
  margin: 12px auto 0;
  font-size: 22px; padding: 6px 12px 4px; border-width: 3.5px;
  animation: stamp-in .45s cubic-bezier(.2, 1.4, .4, 1) .45s both;
}
@keyframes stamp-in {
  from { transform: rotate(-8deg) scale(2.4); opacity: 0; }
  to { transform: rotate(-8deg) scale(1); opacity: .88; }
}

/* texte caviardé */
.redacted {
  color: transparent; background: #15130f; border-radius: 2px;
  box-decoration-break: clone; -webkit-box-decoration-break: clone;
  user-select: none;
}

/* ------------------------------------------------------------------ boutons */
.icon-btn {
  display: inline-grid; place-items: center;
  width: 44px; height: 44px; flex: none;
  border: 1px solid var(--desk-line); border-radius: 10px;
  background: rgba(255, 255, 255, .06); color: var(--on-desk);
  font-size: 24px; line-height: 1; text-decoration: none; cursor: pointer;
}
.icon-btn:hover:not(:disabled) { background: rgba(255, 255, 255, .12); }
.primary, .secondary {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 48px; padding: 0 22px; border-radius: 8px;
  font: 18px var(--font-type); letter-spacing: .06em; text-transform: uppercase;
  text-decoration: none; cursor: pointer;
  transition: transform .12s;
}
.primary { border: 0; background: var(--red); color: #fff4e0; box-shadow: 0 4px 0 var(--red-dark); }
.secondary { border: 2px solid var(--ink); background: transparent; color: var(--ink); box-shadow: 0 4px 0 rgba(38, 33, 26, .25); }
.primary:active, .secondary:active { transform: translateY(3px); box-shadow: none; }

/* ------------------------------------------------------------------ étoiles */
.stars { display: inline-flex; gap: 2px; }
.star { width: 18px; height: 18px; }
.star path { stroke-linejoin: round; stroke-width: 1.5; }
.star.on path { fill: var(--gold); stroke: var(--gold-dark); }
.star.off path { fill: rgba(120, 100, 60, .18); stroke: rgba(120, 100, 60, .35); }
.stars.big .star { width: 46px; height: 46px; }
.stars.big .star.on { animation: star-pop .5s cubic-bezier(.3, 1.6, .5, 1) both; animation-delay: .8s; }
.stars.big .star:nth-child(2) { animation-delay: .95s; }
.stars.big .star:nth-child(3) { animation-delay: 1.1s; }
@keyframes star-pop { from { transform: scale(0) rotate(-40deg); } to { transform: none; } }

/* ------------------------------------------------------------------ accueil */
.hero { text-align: center; padding: 26px 0 18px; }
.logo { width: 76px; height: 76px; filter: drop-shadow(0 4px 10px rgba(0, 0, 0, .4)); }
.logo-lens { fill: rgba(242, 193, 78, .1); stroke: var(--brass-light); stroke-width: 5; }
.logo-handle { stroke: var(--brass); stroke-width: 8; stroke-linecap: round; }
.logo-x { fill: var(--on-desk); font: 700 26px var(--font-mono); }
.hero-kicker {
  margin: 8px 0 0; color: var(--red); font: 13px var(--font-type);
  letter-spacing: .2em; text-transform: uppercase;
}
.hero h1 {
  margin: 2px 0 8px; font: clamp(36px, 11vw, 56px)/1.05 var(--font-type);
  letter-spacing: .01em; color: var(--on-desk);
  text-shadow: 0 2px 0 rgba(0, 0, 0, .4);
}
.tagline { margin: 0 auto; max-width: 32ch; color: var(--on-desk-soft); }
.total { display: inline-flex; align-items: center; gap: 4px; margin: 12px 0 0; font: 700 17px var(--font-mono); }

/* dossiers (mondes) */
.folders { list-style: none; margin: 18px 0 24px; padding: 0; display: grid; gap: 22px; }
.folder {
  position: relative; display: grid; grid-template-columns: 1fr auto; column-gap: 10px;
  padding: 16px 16px 14px; border-radius: 0 var(--radius) var(--radius) var(--radius);
  box-shadow: var(--shadow); text-decoration: none;
  border-left: 6px solid var(--wc);
  transition: transform .15s;
}
a.folder:hover { transform: translateY(-2px) rotate(-.3deg); }
a.folder:active { transform: scale(.985); }
.folder-tab {
  position: absolute; left: -6px; top: -20px; height: 22px;
  padding: 4px 14px 0 12px; border-radius: 6px 10px 0 0;
  background: var(--paper-2); color: var(--ink-soft);
  font: 12px/1.2 var(--font-type); letter-spacing: .12em; text-transform: uppercase;
  border-left: 6px solid var(--wc);
}
.folder-title { grid-column: 1; font: 22px/1.15 var(--font-type); }
.folder-sub { grid-column: 1; margin-top: 2px; color: var(--ink-soft); font-size: 14px; }
.folder-stars {
  grid-column: 2; grid-row: 1 / span 2; align-self: center;
  display: inline-flex; align-items: center; gap: 3px;
  font: 700 15px var(--font-mono); white-space: nowrap;
}
.folder .stamp { position: absolute; right: 12px; bottom: 10px; }
.folder.done .folder-stars { align-self: start; }
.folder.locked { filter: saturate(.4) brightness(.72); }
.world-1 { --wc: var(--brass); } .world-2 { --wc: var(--red); } .world-3 { --wc: var(--blue); }
.world-4 { --wc: #6c4fa3; } .world-5 { --wc: #c0577a; } .world-6 { --wc: #8a6a3e; } .world-7 { --wc: #2f3542; }

/* mode enseignant : interrupteur en bas de l'accueil */
.teacher-panel { margin: 4px 0 28px; padding: 14px 16px; border: 1px dashed var(--desk-line); border-radius: 12px; }
.switch { display: flex; align-items: center; gap: 14px; cursor: pointer; }
.switch-input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.switch-track {
  position: relative; flex: none; width: 52px; height: 30px; border-radius: 999px;
  background: rgba(255, 255, 255, .14); border: 1px solid var(--desk-line);
  transition: background .2s;
}
.switch-thumb {
  position: absolute; top: 3px; left: 3px; width: 22px; height: 22px; border-radius: 50%;
  background: var(--on-desk); box-shadow: 0 2px 4px rgba(0, 0, 0, .4);
  transition: transform .2s cubic-bezier(.3, 1.4, .5, 1);
}
.switch-input:checked + .switch-track { background: var(--red); border-color: var(--red-dark); }
.switch-input:checked + .switch-track .switch-thumb { transform: translateX(22px); }
.switch-input:focus-visible + .switch-track { outline: 3px solid var(--gold); outline-offset: 2px; }
.switch-text { display: grid; gap: 2px; }
.switch-text strong { font: 16px var(--font-type); letter-spacing: .06em; text-transform: uppercase; }
.switch-text span { font-size: 13px; color: var(--on-desk-soft); }
.teacher-badge { margin: 10px 0 0; }
.stamp-teacher { color: var(--gold); mix-blend-mode: normal; font-size: 13px; transform: rotate(-3deg); }

/* ------------------------------------------------------------------ barre du haut */
.topbar { display: flex; align-items: center; gap: 10px; padding: 4px 0 12px; }
.topbar-title { display: grid; flex: 1; min-width: 0; font: 20px/1.15 var(--font-type); }
.kicker {
  font: 700 12px var(--font-mono); letter-spacing: .1em; text-transform: uppercase; color: var(--on-desk-soft);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.topbar-stars { font: 700 15px var(--font-mono); white-space: nowrap; }

/* ------------------------------------------------------------------ missions */
.world-intro { margin: 0 0 16px; color: var(--on-desk-soft); }
.world-briefing {
  margin: 0 0 18px; padding: 12px 14px; border-radius: var(--radius);
  background-color: var(--paper); color: var(--ink); box-shadow: var(--shadow);
  transform: rotate(-.4deg);
}
.world-briefing p { margin: 4px 0 0; font: 15px/1.4 var(--font-mono); }
.tags { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.tags li:nth-child(odd) .evidence { transform: rotate(-1deg); }
.tags li:nth-child(even) .evidence { transform: rotate(.8deg); }
.evidence {
  position: relative; display: grid; justify-items: center; gap: 6px;
  padding: 26px 8px 12px; text-decoration: none;
  clip-path: polygon(16px 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 0 100%, 0 16px);
  border-radius: 0 0 var(--radius) var(--radius);
  box-shadow: var(--shadow);
  transition: transform .15s;
}
a.evidence:hover { transform: rotate(0) translateY(-2px) !important; }
.tag-hole {
  position: absolute; top: 8px; width: 12px; height: 12px; border-radius: 50%;
  background: var(--desk); box-shadow: inset 0 0 0 2px var(--paper-edge);
}
.tag-num { font: 24px/1 var(--font-type); }
.tag-eq { font: 700 15px var(--font-mono); white-space: nowrap; }
.tag-locked { font: 12px var(--font-type); letter-spacing: .12em; text-transform: uppercase; color: var(--ink-soft); }
.evidence.locked { filter: saturate(.4) brightness(.7); }
.evidence.done { box-shadow: var(--shadow), inset 0 -4px 0 var(--wc); }
@media (min-width: 440px) { .tags { grid-template-columns: repeat(4, 1fr); } }

/* ------------------------------------------------------------------ jeu */
.screen-game { display: flex; flex-direction: column; }
.play { display: flex; flex-direction: column; flex: 1; gap: 10px; position: relative; }

/* briefing */
.intro {
  display: flex; align-items: flex-start; gap: 10px;
  padding: 12px 12px 12px 14px; border-radius: var(--radius);
  box-shadow: var(--shadow);
  transform: rotate(-.4deg);
  animation: slide-in .4s ease-out both;
}
.intro-text { flex: 1; }
.intro p { margin: 4px 0 0; font: 15px/1.4 var(--font-mono); }
.intro-ok {
  flex: none; border: 2px solid var(--ink); background: transparent; border-radius: 6px;
  padding: 6px 10px; font: 13px var(--font-type); letter-spacing: .08em; text-transform: uppercase; cursor: pointer;
}
@keyframes slide-in { from { opacity: 0; transform: translateY(-10px) rotate(-.4deg); } }

/* scène : un dossier ouvert sur le bureau */
.stage {
  position: relative; overflow: hidden;
  border-radius: var(--radius);
  box-shadow: var(--shadow), inset 0 0 0 1px var(--paper-edge);
  background-image:
    linear-gradient(rgba(120, 90, 40, .07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120, 90, 40, .07) 1px, transparent 1px);
  background-size: 22px 22px;
  touch-action: manipulation;
  transition: box-shadow .15s;
}
.stage::before {
  content: "Confidentiel";
  position: absolute; left: 50%; top: 22%; translate: -50% 0; rotate: -12deg;
  padding: 4px 14px; border: 4px solid currentColor; border-radius: 6px;
  font: 34px var(--font-type); letter-spacing: .12em; text-transform: uppercase;
  color: rgba(200, 55, 45, .1); pointer-events: none; white-space: nowrap;
}
.stage.drop-hover { box-shadow: var(--shadow), inset 0 0 0 3px var(--red); }
.stage.drop-hover::after {
  content: "Déposer ici";
  position: absolute; left: 50%; bottom: 10px; translate: -50% 0;
  font: 13px var(--font-type); letter-spacing: .14em; text-transform: uppercase; color: var(--red);
}
.balance { position: relative; display: block; width: 100%; height: auto; max-height: 40vh; margin: 0 auto; overflow: visible; }

.balance .shadow { fill: rgba(60, 40, 10, .16); }
.balance .stand, .balance .stem { fill: var(--brass); stroke: var(--brass-dark); stroke-width: 1.5; }
.balance .beam-bar { fill: var(--brass); stroke: var(--brass-dark); stroke-width: 2; }
.balance .pivot { fill: var(--brass-light); stroke: var(--brass-dark); stroke-width: 3; }
.balance .plate-dish { fill: var(--brass-light); stroke: var(--brass-dark); stroke-width: 2.5; stroke-linejoin: round; }
.balance .gauge-face { fill: rgba(255, 250, 235, .7); stroke: var(--brass-dark); stroke-width: 2; }
.balance .tick { stroke: var(--ink-soft); stroke-width: 1.5; }
.balance .tick-zero { stroke: var(--red); stroke-width: 2.5; }
.balance .needle { fill: var(--red); }

.item { transition: transform .45s cubic-bezier(.3, 1.35, .55, 1), opacity .25s; }
.item.leaving { transition: transform .4s ease-in, opacity .35s ease-in; }
.case-body { fill: var(--case); stroke: var(--case-dark); stroke-width: 1.5; }
.case-band { fill: var(--case-dark); }
.case-lock { fill: var(--brass-light); stroke: var(--brass-dark); stroke-width: 1; }
.case-handle { fill: none; stroke: var(--case-dark); stroke-width: 3.5; stroke-linecap: round; }
.box-label { fill: var(--on-desk); font: 700 19px var(--font-mono); }
.item-box.pop .box-label, .item-box.revealed .box-label {
  animation: label-pop .45s cubic-bezier(.3, 1.6, .5, 1); transform-box: fill-box; transform-origin: center;
}
.item-box.revealed .box-label { fill: var(--gold); font-size: 19px; }
/* mallette ouverte : on voit les lingots à l'intérieur */
.case-window { fill: #fbf3dc; stroke: var(--case-dark); stroke-width: 1; }
.mini-ingot { fill: var(--gold); stroke: var(--gold-dark); stroke-width: .6; }
.mini-new { animation: mini-drop .4s cubic-bezier(.3, 1.5, .5, 1) both; transform-box: fill-box; }
@keyframes mini-drop { from { transform: translateY(-22px); opacity: 0; } 60% { opacity: 1; } }
.case-badge { fill: var(--brass-light); stroke: var(--brass-dark); stroke-width: 1.5; }
.case-badge-text { fill: var(--ink); font: 700 12px var(--font-mono); }
.item-box.pop .case-badge, .item-box.pop .case-badge-text,
.item-box.revealed .case-badge, .item-box.revealed .case-badge-text {
  animation: label-pop .45s cubic-bezier(.3, 1.6, .5, 1); transform-box: fill-box; transform-origin: center;
}
.item-box.revealed .case-body { fill: var(--green); stroke: #1d5c40; }
.item-box.revealed .case-badge { fill: var(--gold); }
@keyframes label-pop { from { transform: scale(.2); } to { transform: none; } }
.ingot-body { fill: var(--gold); stroke: var(--gold-dark); stroke-width: 1.2; stroke-linejoin: round; }
.ingot-top { fill: var(--gold-light); }
.ingot-label { fill: var(--gold-dark); font: 700 11px var(--font-mono); }
.balloon-body { fill: var(--balloon); stroke: #8f3355; stroke-width: 1; }
.balloon-shine { fill: rgba(255, 255, 255, .45); }
.balloon-string { stroke: var(--ink-soft); fill: none; stroke-width: 1.2; }
.item-balloon.leaving { transition: transform .7s ease-in, opacity .7s ease-in; }
.case-body.anti { fill: #4a3a52; }
.mini-balloon { fill: var(--balloon); stroke: #8f3355; stroke-width: .5; }
/* plis scellés (parenthèses) */
.env-body { fill: #f5ead0; stroke: #8a6a3e; stroke-width: 1.5; }
.env-flap { fill: none; stroke: #8a6a3e; stroke-width: 1.2; stroke-linejoin: round; }
.env-seal { fill: var(--red); stroke: var(--red-dark); stroke-width: 1; }
.env-label { fill: var(--ink); font: 700 13px var(--font-mono); }
.env-factor { fill: var(--red); font: 700 13px var(--font-mono); }

.balance.shake { animation: shake .45s; }
@keyframes shake { 20%, 60% { transform: translateX(-5px); } 40%, 80% { transform: translateX(5px); } }

/* rapport : l'équation tapée à la machine */
.equation {
  position: relative; text-align: center; min-height: 104px;
  display: grid; align-content: center; gap: 2px;
  padding: 10px 12px 8px; border-radius: 2px;
  box-shadow: var(--shadow);
  background-image: repeating-linear-gradient(transparent 0 27px, rgba(63, 111, 166, .14) 27px 28px);
}
.equation .paper-label { position: absolute; left: 10px; top: 8px; font-size: 11px; }
.eq-prev { color: var(--ink-soft); font: 15px var(--font-mono); min-height: 1.4em; text-decoration: line-through; text-decoration-color: rgba(200, 55, 45, .5); }
.eq-current { font: 700 clamp(28px, 9vw, 40px)/1.15 var(--font-mono); }
.eq-current.typing::after { content: "▌"; color: var(--red); animation: blink .6s steps(1) infinite; }
.eq-current.solved { color: var(--green); }
.eq-note { color: var(--red); font: 15px var(--font-type); min-height: 1.4em; }
@keyframes blink { 50% { opacity: 0; } }

.status { text-align: center; color: var(--on-desk-soft); font: 700 14px var(--font-mono); }

/* cartes : des fiches d'ordre */
.controls { margin-top: auto; }
.hand { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; padding: 8px 0 4px; }
.card {
  position: relative; display: grid; justify-items: center; align-content: center; gap: 4px;
  width: 92px; min-height: 108px; padding: 14px 6px 10px;
  border: 0; border-radius: 4px; cursor: grab;
  box-shadow: var(--shadow);
  touch-action: none; user-select: none; -webkit-user-select: none;
  transition: transform .15s, opacity .12s;
}
.card::before {
  content: ""; position: absolute; left: 0; right: 0; top: 0; height: 8px;
  background: var(--cc); border-radius: 4px 4px 0 0;
}
.hand .card:nth-child(odd) { transform: rotate(-1.5deg); }
.hand .card:nth-child(even) { transform: rotate(1.2deg); }
.hand .card:hover { transform: translateY(-4px); }
.hand .card:active { transform: translateY(1px); }
.card-label { position: relative; z-index: 1; font: 700 32px/1 var(--font-mono); color: var(--cc-dark); }
.card-caption { font-size: 12px; line-height: 1.2; color: var(--ink-soft); text-align: center; }
.card-long .card-label { font-size: 15px; letter-spacing: -.02em; }
.card-weights { --cc: var(--gold); --cc-dark: var(--gold-dark); }
.card-boxes { --cc: var(--case); --cc-dark: var(--case); }
.card-scale { --cc: var(--blue); --cc-dark: var(--blue-dark); }
.card-bags { --cc: var(--red); --cc-dark: var(--red-dark); }
.card.drag-source { opacity: .25; }
.hand .card.nope { animation: shake .4s; }
.drag-ghost {
  position: fixed; z-index: 50; margin: 0; pointer-events: none;
  box-shadow: 0 18px 36px rgba(0, 0, 0, .5);
}
.drag-ghost.drag-return { transition: transform .25s ease-out; }
.drag-ghost.drag-drop { transition: opacity .2s, scale .2s; opacity: 0; scale: .6; }

/* devinette : un cadran à molettes */
.guess { display: grid; justify-items: center; gap: 12px; padding: 6px 0 4px; }
.guess-row { display: flex; align-items: center; gap: 12px; }
.guess-x { font: 700 28px var(--font-mono); }
.guess-value {
  min-width: 2.6ch; padding: 2px 10px; text-align: center; border-radius: 8px;
  font: 700 40px var(--font-mono); color: var(--ink); background: var(--paper);
  box-shadow: inset 0 2px 6px rgba(0, 0, 0, .25);
}
.round-btn {
  width: 56px; height: 56px; border: 0; border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, var(--brass-light), var(--brass) 60%, var(--brass-dark));
  box-shadow: 0 4px 0 #5a4214, 0 8px 16px rgba(0, 0, 0, .35);
  color: var(--ink); font-size: 30px; font-weight: 900; cursor: pointer;
}
.round-btn:active { transform: translateY(3px); box-shadow: 0 1px 0 #5a4214; }
.guess .primary { min-width: 200px; }

/* mise en équation : construire la balance du témoignage */
.testimony {
  padding: 10px 14px; border-radius: var(--radius);
  background-color: #fff6df; color: var(--ink); box-shadow: var(--shadow);
  border-left: 5px solid var(--red); transform: rotate(.3deg);
}
.testimony p { margin: 4px 0 0; font: italic 15px/1.4 var(--font-mono); }
.build { display: grid; justify-items: center; gap: 12px; padding: 4px 0; }
.build-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; width: 100%; }
.build-col {
  display: grid; gap: 4px; justify-items: center; padding: 8px 4px;
  border: 1px solid var(--desk-line); border-radius: 10px; background: rgba(255, 255, 255, .04);
}
.build-col .paper-label { color: var(--on-desk-soft); font-size: 11px; }
.build-field { display: grid; justify-items: center; gap: 4px; }
.build-label { font: 13px var(--font-type); letter-spacing: .08em; text-transform: uppercase; color: var(--on-desk-soft); }
.build-row { display: flex; align-items: center; gap: 8px; }
.build-value { min-width: 4.6ch; text-align: center; font: 700 18px var(--font-mono); white-space: nowrap; }
.round-btn.small { width: 36px; height: 36px; font-size: 20px; }
.build .primary { min-width: 200px; }

/* message : une note tamponnée */
.toast {
  position: absolute; left: 50%; top: 10px; z-index: 5;
  width: max-content; max-width: calc(100% - 20px); translate: -50% 0; rotate: -1.5deg;
  padding: 8px 14px; border-radius: 4px;
  background: #fff6df; color: var(--ink); border: 2px solid var(--ink-soft);
  font: 14px/1.35 var(--font-mono); text-align: center;
  box-shadow: 0 8px 20px rgba(0, 0, 0, .3);
  animation: rise .25s ease-out both; transition: opacity .35s;
}
.toast-title { display: block; font: 15px var(--font-type); letter-spacing: .12em; text-transform: uppercase; }
.toast-warn { border-color: var(--red); }
.toast-warn .toast-title { color: var(--red); }
.toast.out { opacity: 0; }
@keyframes rise { from { opacity: 0; transform: translateY(8px); } }

/* victoire : le rapport final, en panneau qui monte du bas sans cacher la balance */
.overlay {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 40;
  display: flex; justify-content: center;
  padding: 0 12px max(12px, env(safe-area-inset-bottom));
  pointer-events: none;
}
.screen-game.won { padding-bottom: var(--sheet, 300px); }
.victory {
  position: relative; pointer-events: auto;
  width: min(100%, 520px); padding: 14px 16px 16px; border-radius: 10px;
  box-shadow: 0 -6px 30px rgba(0, 0, 0, .45);
  animation: sheet-up .45s cubic-bezier(.25, 1.25, .5, 1) both;
}
@keyframes sheet-up { from { transform: translateY(110%); } }
.victory-head { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.victory-solution { margin: 6px 0 0; font: 700 38px/1 var(--font-mono); white-space: nowrap; }
.victory-worth { margin: 4px 0 0; font: 14px var(--font-mono); color: var(--ink-soft); }
.victory .stamp-big { flex: none; margin: 0 4px 0 0; font-size: 17px; padding: 5px 9px 3px; border-width: 3px; }
.victory-score { display: flex; align-items: center; justify-content: center; gap: 12px; margin-top: 10px; }
.victory-score .stars.big .star { width: 34px; height: 34px; }
.victory-moves { margin: 0; font: 700 15px var(--font-mono); }
.advice { margin: 6px 0 0; color: var(--ink-soft); font-size: 14px; text-align: center; }
.victory-outro {
  margin: 10px 0 0; padding: 8px 10px; text-align: left;
  border-left: 4px solid var(--red); background: rgba(200, 55, 45, .07);
  font: 14px/1.4 var(--font-mono);
}
.victory-actions { display: flex; gap: 10px; justify-content: center; margin-top: 14px; }
.victory-actions > * { flex: 1; max-width: 230px; padding: 0 10px; font-size: 15px; letter-spacing: .03em; white-space: nowrap; }

/* confettis */
.confetti { position: fixed; inset: 0; pointer-events: none; z-index: 60; overflow: hidden; }
.confetti i {
  position: absolute; width: 8px; height: 12px; border-radius: 1px;
  animation: confetti 1.4s cubic-bezier(.2, .6, .4, 1) forwards;
}
@keyframes confetti {
  to { transform: translate(var(--dx), calc(var(--dy) + 340px)) rotate(var(--r)); opacity: 0; }
}

/* ------------------------------------------------------------------ effacement progressif */
.display-mixed .balance { max-height: 28vh; opacity: .85; }
.display-symbolic .balance { max-height: 18vh; opacity: .6; }
.display-symbolic .eq-current { font-size: clamp(32px, 10vw, 46px); }
.building .balance { max-height: 26vh; opacity: 1; }
.building .equation { min-height: 0; }

/* ------------------------------------------------------------------ grand écran */
@media (min-width: 720px) {
  .screen { max-width: 660px; }
  .balance { max-height: 46vh; }
  .card { width: 104px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-delay: 0s !important; transition-duration: .01ms !important; }
}