/* piiitch — adaptation du design system livré dans la reprise complète. */
:root {
  color-scheme: light;
  --vn-bg: var(--brand-cream); --vn-surface: var(--brand-paper);
  --vn-text: var(--brand-ink); --vn-muted: var(--brand-muted);
  --vn-border: var(--brand-line); --vn-accent: var(--brand-ink);
  --vn-accent-contrast: var(--brand-paper); --vn-success: var(--brand-forest);
  --vn-error: var(--brand-error); --vn-warning-bg: var(--brand-butter);
  --vn-font: var(--brand-font); --vn-radius: 16px; --vn-container: 1200px;
  --pi-ink: var(--brand-ink); --pi-ink-soft: var(--brand-muted);
  --pi-indigo: var(--brand-ink); --pi-indigo-dim: var(--brand-butter);
  --pi-paper: var(--brand-paper); --pi-canvas: var(--brand-cream);
  --pi-line: var(--brand-line); --pi-alert: var(--brand-error);
  --pi-live: var(--brand-forest); --pi-font: var(--brand-font);
  --pi-r: 16px; --pi-r-sm: 11px;
  --f-body: var(--brand-font); --f-ui: var(--brand-font); --f-display: var(--brand-font);
}
html { scroll-behavior: smooth; scroll-padding-top: 110px; }
body, body.pi { background: var(--brand-cream); color: var(--brand-ink); font-family: var(--brand-font); line-height: 1.55; }
[hidden] { display: none !important; }
.vn-skip, .pi-skip { position: fixed; left: 16px; top: -120px; background: var(--brand-ink); color: var(--brand-paper); padding: 12px 18px; border-radius: 8px; z-index: 100; }
.vn-skip:focus, .pi-skip:focus { top: 10px; left: 16px; color: var(--brand-paper); background: var(--brand-ink); }
button, input, textarea, select { font-family: inherit; }
button, a { touch-action: manipulation; }
img, svg { max-width: 100%; }
button:disabled { opacity: .5; cursor: not-allowed; }
:where(a,button,input,select,textarea,summary):focus-visible { outline: 3px solid var(--brand-forest); outline-offset: 4px; }
.brand-container { width: min(var(--brand-max),calc(100% - 64px)); margin-inline: auto; }
.brand-header { position: sticky; top: 0; z-index: 30; background: var(--brand-cream); border-bottom: 1px solid var(--brand-line); }
.brand-header-inner { display: flex; align-items: center; gap: 24px; min-height: 88px; }
.brand-logo { display: inline-flex; align-items: center; gap: 10px; text-decoration: none !important; color: var(--brand-ink); flex-shrink: 0; }
.brand-mark { display: inline-block; width: 37px; height: 40px; color: var(--brand-citron); vertical-align: middle; flex-shrink: 0; }
.brand-wordmark { font-family: var(--brand-font); font-size: 36px; line-height: 1; font-weight: 800; letter-spacing: -.065em; }
.brand-navigation { display: flex; align-items: center; gap: 28px; margin: auto; padding: 0; font-size: 14px; font-weight: 600; }
.brand-navigation a { color: var(--brand-ink); padding: 12px 0; text-decoration: none; white-space: nowrap; }
.brand-navigation a:hover { text-decoration: underline; text-decoration-thickness: 3px; text-underline-offset: 7px; }
.brand-button { display: inline-flex; align-items: center; justify-content: center; gap: 14px; min-height: 48px; padding: 13px 24px; border: 1px solid var(--brand-ink); border-radius: 999px; background: var(--brand-ink); color: var(--brand-paper); font-size: 14px; line-height: 1.25; font-weight: 600; text-align: center; text-decoration: none !important; cursor: pointer; transition: transform 160ms, background 160ms; }
.brand-button:hover { transform: translateY(-2px); background: var(--brand-forest); color: var(--brand-paper); }
.brand-button--outline { background: transparent; color: var(--brand-ink); }
.brand-button--citron { background: var(--brand-citron); border-color: var(--brand-citron); color: var(--brand-ink); }
.brand-button--citron:hover { background: var(--brand-butter); color: var(--brand-ink); }
.brand-button > span[aria-hidden] { font-size: 23px; line-height: 1; }
.brand-mobile-menu { display: none; margin-left: auto; }
.brand-mobile-menu summary { padding: 9px 14px; border: 1px solid var(--brand-line); border-radius: 999px; cursor: pointer; font-size: 14px; }
.brand-mobile-menu nav { position: absolute; top: 100%; right: 16px; left: 16px; display: grid; gap: 4px; padding: 16px; background: var(--brand-paper); border: 1px solid var(--brand-line); border-radius: 16px; box-shadow: var(--brand-shadow); }
.brand-mobile-menu nav a { padding: 12px; color: var(--brand-ink); border-radius: 8px; text-decoration: none; }
.brand-mobile-menu nav a:hover { background: var(--brand-butter); }
.brand-eyebrow { font-size: 11px; font-weight: 700; letter-spacing: .18em; text-transform: uppercase; }
.brand-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 12px; }
.brand-badge { display: inline-flex; padding: 6px 12px; border: 1px solid var(--brand-line); border-radius: 999px; font-size: 11px; font-weight: 600; background: var(--brand-paper); color: var(--brand-ink); }
.brand-muted { color: var(--brand-muted); }
.brand-footer { padding: 32px 0; border-top: 1px solid var(--brand-line); text-align: left; }
.brand-footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.brand-footer nav { display: flex; gap: 18px; padding: 0; font-size: 12px; flex-wrap: wrap; }
.brand-footer a { color: var(--brand-ink); text-decoration: none; }
.brand-footer p { font-size: 11px; color: var(--brand-muted); margin-top: 22px; }
.brand-footer .brand-mark { width: 27px; height: 30px; }
.brand-footer .brand-wordmark { font-size: 28px; }
/* Composants partagés : les écrans existants restent connectés aux mêmes vues. */
.vn-main { padding-block: 48px; min-height: 60vh; }
.vn-main h1 { font-size: clamp(30px,3.5vw,46px); letter-spacing: -.045em; line-height: 1.1; margin-bottom: 24px; }
.vn-card { padding: 24px; border-radius: 16px; }
.vn-button, .vn-btn, .pi-btn { border-radius: 999px; min-height: 42px; padding: 11px 18px; }
.vn-button:hover, .vn-btn:hover, .pi-btn:hover { background: var(--brand-forest); color: var(--brand-paper); }
.pi-btn--ghost:hover { background: var(--brand-butter); color: var(--brand-ink); }
.vn-footer { background: var(--brand-cream); }
.pi-shell { grid-template-columns: var(--pi-rail) var(--pi-list) minmax(0,1fr); min-height: calc(100vh - 89px); }
.pi-shell > *, .pi-detail > * { min-width: 0; }
.pi-rail { background: var(--brand-cream); padding: 24px 16px; }
.pi-brand { gap: 10px; margin-bottom: 28px; }
.pi-brand .brand-mark { width: 25px; height: 28px; color: var(--brand-ink); }
.pi-brand__name { font-size: 23px; font-weight: 800; letter-spacing: -.05em; }
.pi-railgroup { text-transform: uppercase; letter-spacing: .12em; font-size: 10px; font-weight: 700; margin-block: 24px 8px; }
.pi-nav a { padding: 10px 12px; margin-block: 1px; }
.pi-nav a[aria-current=page] { background: var(--brand-citron); color: var(--brand-ink); }
.pi-detail { padding: 32px; }
.pi-panel { padding: 22px 24px; }
.pi-head h2 { font-size: clamp(25px,2.4vw,36px); letter-spacing: -.04em; line-height: 1.15; }
.pi-row[aria-current=true] { background: var(--brand-butter); border-left-color: var(--brand-ink); }
.pi-field { min-height: 42px; }
.pi-meter { height: 5px; }
.pi-meter > i { background: var(--brand-forest); }
.pi-conv { padding: 16px 0; min-height: 70vh; }
.pi-bulle { font-size: 1rem; padding: 16px 18px; }
.pi-bulle--moi { background: var(--brand-ink); color: var(--brand-paper); }
/* Atelier du deck : titre, questionnaire et slide suivent la même identité. */
.deck-welcome { max-width: 860px; margin: 40px auto 0; }
.deck-eyebrow { text-transform: uppercase; font-size: 11px; letter-spacing: .16em; }
.deck-welcome h1 { font-size: clamp(40px,4.7vw,68px); line-height: 1.02; letter-spacing: -.06em; }
.deck-welcome .deck-lead { max-width: 590px; font-size: 17px; line-height: 1.7; }
.deck-url-row { background: var(--brand-paper); border: 1px solid var(--brand-line); padding: 8px; border-radius: 18px; }
.deck-url-row input { border: 0; background: transparent; }
.deck-url-row .pi-btn { background: var(--brand-citron); color: var(--brand-ink); }
.deck-steps { gap: 16px; }
.deck-steps li { padding: 20px; border: 1px solid var(--brand-line); border-radius: 16px; background: var(--brand-paper); }
.deck-steps li:nth-child(2) { background: var(--brand-citron); }
.deck-steps li:nth-child(3) { background: var(--brand-butter); }
.deck-steps strong { font-size: 12px; }
.deck-steps span { display: block; font-size: 18px; letter-spacing: -.025em; line-height: 1.2; }
.deck-slide { background: var(--brand-paper); border: 1px solid var(--brand-line); border-top: 6px solid var(--brand-citron); border-radius: 18px; box-shadow: var(--brand-shadow); }
.deck-slide .brand-mark { width: 20px; height: 22px; color: var(--brand-ink); }
.deck-slide-logo { display: flex; align-items: center; gap: 8px; font-weight: 800; font-size: 17px; letter-spacing: -.04em; }
.deck-slide[data-theme=dark] { background: var(--brand-ink); border-color: var(--brand-ink); border-top-color: var(--brand-citron); color: var(--brand-cream); }
.deck-slide[data-theme=dark] :is(input,textarea,.deck-slide-meta) { color: var(--brand-cream); }
.deck-slide[data-theme=dark] .brand-mark { color: var(--brand-citron); }
.deck-slide[data-theme=dark] footer { border-top-color: #65685D; color: var(--brand-cream); }
.deck-slide[data-theme=dark] .pi-btn { background: var(--brand-citron); color: var(--brand-ink); }
.deck-slide-nav button { border-radius: 9px; padding: 9px; }
.deck-slide-nav button[aria-current] { background: var(--brand-citron); color: var(--brand-ink); border-color: var(--brand-ink); }
.deck-assistant { border-radius: 18px; padding: 24px; }
.deck-assistant h2 { font-size: 20px; letter-spacing: -.035em; }
.deck-message, .deck-suggestion { border-radius: 12px; }
.deck-message.user { background: var(--brand-butter); }
.deck-checklist button.active { background: var(--brand-citron); border-radius: 8px; }
.deck-panel { background: var(--brand-paper); border: 1px solid var(--brand-line); border-radius: 16px; padding: 22px; }
.deck-panel h2 { font-size: 18px; letter-spacing: -.025em; }
.deck-error { color: var(--brand-error); }
@media (max-width: 1050px) {
  .brand-navigation { gap: 16px; font-size: 12px; }
  .brand-header-inner { gap: 16px; }
  .brand-container { width: calc(100% - 40px); }
  .brand-wordmark { font-size: 30px; }
  .pi-detail { padding: 24px; }
}
@media (max-width: 980px) {
  .pi-shell { grid-template-columns: minmax(0,1fr); }
  .pi-rail, .pi-list, .pi-detail { grid-column: 1; grid-row: auto; }
  .pi-rail { padding: 8px 16px; display: flex; gap: 16px; overflow-x: auto; }
  .pi-rail .pi-brand, .pi-railgroup { display: none; }
  .pi-nav { flex-direction: row; flex-shrink: 0; gap: 5px; }
  .pi-nav a { white-space: nowrap; font-size: 12px; padding: 8px 10px; }
  .pi-list { max-height: 32vh; }
  .pi-detail { padding: 24px 16px; }
  .deck-welcome { margin-top: 16px; }
  .deck-welcome h1 { max-width: 640px; }
}
@media (max-width: 800px) {
  .brand-header-inner { min-height: 72px; }
  .brand-navigation, .brand-header-cta { display: none; }
  .brand-mobile-menu { display: block; }
  .brand-logo .brand-mark { width: 30px; height: 33px; }
  .vn-main { padding-block: 32px; }
  .vn-card { padding: 20px; }
}
@media (max-width: 480px) {
  .brand-container { width: calc(100% - 32px); }
  .brand-button { min-height: 46px; font-size: 13px; padding: 12px 18px; }
  .brand-footer-inner { align-items: flex-start; flex-direction: column; }
  .deck-welcome h1 { font-size: 39px; }
  .deck-steps { grid-template-columns: 1fr; }
  .deck-url-row { flex-direction: column; }
  .pi-panel { padding: 18px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
}