/* ════════════════════════════════════════
   DIAGNOSTIC CONTENT & IA — LA COLLAB — TUNNEL
   Look : Jost, vert #33FF99, balises < />, flat clair
   ════════════════════════════════════════ */
:root {
  --c-green: #33FF99;
  --c-yellow: #FFF039;
  --c-violet: #C68AFF;
  --c-triad: linear-gradient(90deg, var(--c-green), var(--c-yellow), var(--c-violet));
  --accent: var(--c-green);
  --c-black: #000000;
  --c-white: #FFFFFF;
  --c-grey-1: #EFEFEF;
  --c-grey-3: #6C6C6C;
  --c-grey-4: #545454;
  --c-font: 'Jost', 'Century Gothic', 'Questrial', system-ui, sans-serif;
  --radius: 0;
  --maxw: 720px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body.collab-diag {
  margin: 0;
  font-family: var(--c-font);
  color: var(--c-black);
  background: var(--c-white);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
}

/* Pattern losange décoratif en fond (léger) */
.collab-bg {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  opacity: 0.3;
  background-image: url("../collab/diamond-grid.svg");
  background-size: 44px;
}

/* Barre de progression */
.collab-progress {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  display: flex; align-items: center; gap: 1rem;
  padding: 0.9rem 1.6rem;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--c-grey-1);
}
.collab-progress .logo { flex-shrink: 0; height: 30px; display: flex; }
.collab-progress .logo svg, .collab-progress .logo img { height: 30px; width: auto; }
.collab-progress-bar { flex: 1; height: 4px; background: var(--c-grey-1); border-radius: 0; overflow: hidden; }
.collab-progress-fill { height: 100%; width: 0%; background: var(--c-green); transition: width .5s cubic-bezier(.16,1,.3,1); }
.collab-progress-label { font-size: .75rem; font-weight: 600; color: var(--c-grey-3); white-space: nowrap; min-width: 54px; text-align: right; }

/* Conteneur d'écrans */
.collab-screens { position: relative; z-index: 1; flex: 1; display: flex; align-items: center; justify-content: center; padding: 5.5rem 1.4rem 3rem; }
.collab-screen { display: none; width: 100%; max-width: var(--maxw); margin: 0 auto; animation: collabFade .4s ease; }
.collab-screen.active { display: block; }
@keyframes collabFade { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }

/* Helper balises de code < ... /> */
.collab-bracket { display: inline-block; font-weight: 700; color: var(--c-black); font-size: .82rem; letter-spacing: .04em; margin-bottom: 1rem; }
.collab-bracket::before { content: "< "; color: var(--c-black); }
.collab-bracket::after  { content: " />"; color: var(--c-black); }

/* Titres */
.collab-screen h1 { font-size: clamp(1.9rem, 5vw, 3rem); font-weight: 700; line-height: 1.08; margin: 0 0 1rem; }
/* Mots-clés soulignés façon highlighter (cf. hero lacollab.com) */
.hl { --hl: var(--c-green); background-image: linear-gradient(transparent 58%, var(--hl) 58%, var(--hl) 94%, transparent 94%); background-repeat: no-repeat; padding: 0 .04em; }
.hl-green { --hl: var(--c-green); }
.hl-yellow { --hl: var(--c-yellow); }
.hl-violet { --hl: var(--c-violet); }
.collab-screen h2 { font-size: clamp(1.4rem, 3.5vw, 2rem); font-weight: 700; line-height: 1.2; margin: 0 0 1.6rem; }
.collab-intro-sub { font-size: 1.05rem; color: var(--c-grey-4); margin: 0 0 1.4rem; line-height: 1.5; }
.collab-intro-list { list-style: none; padding: 0; margin: 0 0 1.8rem; display: grid; gap: .7rem; }
.collab-intro-list li { position: relative; padding-left: 1.7rem; color: var(--c-black); }
.collab-intro-list li::before { content: ""; position: absolute; left: 0; top: .35em; width: 12px; height: 12px; background: var(--c-green); clip-path: polygon(50% 0,100% 50%,50% 100%,0 50%); }
.collab-intro-list li:nth-child(3n+2)::before { background: var(--c-yellow); }
.collab-intro-list li:nth-child(3n)::before { background: var(--c-violet); }
.collab-note { font-size: .82rem; color: var(--c-grey-3); margin-top: 1rem; }
.collab-proof { font-size: .78rem; color: var(--c-grey-3); margin-top: .4rem; font-weight: 600; }

/* Bandeau d'axe */
.collab-axis-label { font-size: .74rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--c-grey-3); margin: 0 0 1rem; }

/* Options */
.collab-options { display: grid; gap: .7rem; }
.collab-option {
  display: flex; align-items: center; gap: .9rem; width: 100%; text-align: left;
  font-family: inherit; font-size: 1rem; color: var(--c-black);
  background: var(--c-white); border: 2px solid var(--c-grey-1); border-radius: var(--radius);
  padding: 1rem 1.1rem; cursor: pointer; transition: border-color .2s, background .2s, transform .1s;
}
.collab-option:hover { border-color: var(--c-black); }
.collab-option .marker { flex-shrink: 0; width: 20px; height: 20px; border: 2px solid var(--c-grey-3); border-radius: 0; transition: all .2s; }
.collab-option.selected { border-color: var(--accent); background: color-mix(in srgb, var(--accent) 14%, var(--c-white)); }
.collab-option.selected .marker { background: var(--accent); border-color: var(--accent); box-shadow: inset 0 0 0 3px var(--c-white); }

/* Boutons (style H4 call to action de la charte) */
.collab-btn {
  display: inline-flex; align-items: center; gap: .6rem; font-family: inherit; font-weight: 700; font-size: 1rem;
  background: var(--c-white); color: var(--c-black); border: 2px solid var(--c-black); border-radius: 0;
  box-shadow: 5px 5px 0 var(--c-black);
  padding: .9rem 1.55rem; cursor: pointer; transition: transform .12s, box-shadow .12s; text-decoration: none;
}
.collab-btn:hover { transform: translate(2px, 2px); box-shadow: 2px 2px 0 var(--c-black); }
.collab-btn svg { width: 18px; height: 18px; }
/* Sur fond noir (transitions) : conserver l'ombre décalée mais verte pour le contraste */
.collab-transition .collab-btn { border-color: var(--c-white); box-shadow: 5px 5px 0 var(--c-green); }
.collab-transition .collab-btn:hover { box-shadow: 2px 2px 0 var(--c-green); }

/* Transition « le saviez-vous » : fond noir + accent vert */
.collab-transition { background: var(--c-black); color: var(--c-white); border-radius: 0; padding: 2rem 1.8rem; }
.collab-transition .collab-bracket { color: var(--c-white); }
.collab-transition .collab-bracket::before, .collab-transition .collab-bracket::after { color: var(--c-white); }
.collab-stats { display: grid; gap: 1rem; margin-bottom: 1.4rem; }
.collab-stat { color: #d8d8d8; line-height: 1.5; padding-left: 1rem; border-left: 3px solid var(--accent); }
.collab-takeaway { background: color-mix(in srgb, var(--accent) 14%, transparent); border: 1px solid var(--accent); border-radius: 0; padding: 1rem 1.1rem; margin-bottom: 1.4rem; }
.collab-takeaway strong { color: var(--accent); }

/* Chargement */
.collab-loading { text-align: center; }
.collab-loading-spinner { width: 46px; height: 46px; margin: 0 auto 1.4rem; border: 4px solid var(--c-grey-1); border-top-color: var(--c-green); border-radius: 50%; animation: collabSpin 1s linear infinite; }
@keyframes collabSpin { to { transform: rotate(360deg); } }
.collab-loading-bar { height: 6px; background: var(--c-grey-1); border-radius: 0; overflow: hidden; max-width: 360px; margin: 1.2rem auto; }
.collab-loading-bar-fill { height: 100%; width: 0%; background: var(--c-green); transition: width .5s ease; }
.collab-loading-steps { color: var(--c-grey-4); }

/* Formulaire de capture */
.collab-capture-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; }
.collab-capture-left .collab-intro-list { margin-top: 1rem; }
.collab-form { display: grid; gap: .6rem; }
.collab-form label { font-size: .85rem; font-weight: 600; }
.collab-form input, .collab-form select { font-family: inherit; font-size: 1rem; padding: .8rem .9rem; border: 2px solid var(--c-grey-1); border-radius: 0; background: var(--c-white); }
.collab-form input:focus, .collab-form select:focus { outline: none; border-color: var(--accent); }
.collab-required { color: var(--accent); }
.collab-email-error { color: #d11; font-size: .82rem; margin: 0; }
.collab-checkbox { display: flex; gap: .6rem; align-items: flex-start; font-size: .82rem; color: var(--c-grey-4); }
.collab-checkbox a { color: inherit; text-decoration: underline; text-underline-offset: 2px; word-break: break-word; }
.collab-checkbox a:hover { color: var(--c-grey-5, #111); }
.collab-legal { font-size: .74rem; color: var(--c-grey-3); margin-top: .6rem; }
.collab-form-submit { margin-top: .4rem; }

/* Question obligatoire Oui/Non (All4Content) */
.collab-all4content { border: 0; margin: 0; padding: 0; display: grid; gap: .5rem; }
.collab-all4content legend { font-size: .85rem; font-weight: 600; padding: 0; }
.collab-yn { display: flex; gap: .6rem; }
.collab-yn label { flex: 1; position: relative; }
.collab-yn input { position: absolute; opacity: 0; width: 0; height: 0; }
.collab-yn span { display: block; text-align: center; font-weight: 600; padding: .8rem .9rem; border: 2px solid var(--c-grey-1); background: var(--c-white); cursor: pointer; transition: border-color .2s, background .2s, color .2s; }
.collab-yn input:checked + span { border-color: var(--accent); background: var(--accent); color: #111; }
.collab-yn input:focus-visible + span { outline: 2px solid var(--accent); outline-offset: 2px; }

/* Responsive */
@media (max-width: 720px) {
  .collab-capture-grid { grid-template-columns: 1fr; }
}