/* ============================================================
   LUMINEYES — / 03 Du message au client (timeline premium)
   ============================================================ */
.m2c{position:relative;background:#070605;overflow:clip}
.m2c::before{content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(205,152,71,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(205,152,71,.05) 1px,transparent 1px);
  background-size:64px 64px;mask-image:radial-gradient(circle at 50% 30%,#000,transparent 80%)}

.m2c-scroll{position:relative;height:340vh}
.m2c-sticky{position:sticky;top:0;height:100vh;display:flex;align-items:center}
.m2c-grid{width:100%;max-width:1320px;margin:0 auto;padding:0 2.5rem;
  display:grid;grid-template-columns:0.95fr 0.85fr 1.15fr;gap:2.5rem;align-items:center}

/* Left intro */
.m2c-intro .section-code{color:var(--gold)}
.m2c-intro h2{margin:1rem 0;font-family:var(--display);font-weight:400;letter-spacing:-.04em;
  font-size:clamp(2.8rem,4.6vw,4.6rem);line-height:.98;color:var(--paper)}
.m2c-intro h2 span{color:var(--gold)}
.m2c-intro p{margin:0;max-width:24rem;color:rgba(238,234,226,.72);font-size:.95rem;line-height:1.8}
.m2c-cue{display:inline-flex;align-items:center;gap:.7rem;padding:.6rem 1rem;border:1px solid var(--line);
  border-radius:2rem;font-family:var(--mono);font-size:.5rem;letter-spacing:.22em;text-transform:uppercase;color:rgba(238,234,226,.65)}
.m2c-cue i{position:relative;display:block;width:.85rem;height:1.4rem;border:1px solid var(--gold);border-radius:1rem}
.m2c-cue i::after{content:"";position:absolute;left:50%;top:.25rem;width:2px;height:.4rem;border-radius:2px;
  background:var(--gold);transform:translateX(-50%);animation:m2cDot 1.8s ease-in-out infinite}
@keyframes m2cDot{0%,100%{opacity:.3;transform:translate(-50%,0)}50%{opacity:1;transform:translate(-50%,.45rem)}}

/* Center timeline */
.m2c-timeline{position:relative;padding:.5rem 0 .5rem 2.4rem}
.m2c-timeline::before{content:"";position:absolute;left:calc(1.1rem - 1px);top:.6rem;bottom:.6rem;width:2px;
  background:rgba(205,152,71,.18)}
.m2c-progress{position:absolute;left:calc(1.1rem - 1px);top:.6rem;width:2px;height:0;
  background:linear-gradient(180deg,var(--gold),rgba(205,152,71,.4));box-shadow:0 0 12px rgba(205,152,71,.5);
  transition:height .45s ease}
.m2c-step{position:relative;display:grid;grid-template-columns:auto 1fr;gap:.9rem;padding:.55rem 0;opacity:.4;
  transition:opacity .4s ease}
.m2c-step .m2c-node{position:absolute;left:-2.4rem;top:.55rem;width:2.2rem;height:2.2rem;display:grid;place-items:center;
  border:1px solid var(--line);border-radius:50%;background:#0c0a08;color:rgba(238,234,226,.6);transition:all .4s ease}
.m2c-node svg{width:1rem;height:1rem;stroke:currentColor;fill:none;stroke-width:1.6}
.m2c-step b{grid-column:2;font-family:var(--mono);font-size:.55rem;letter-spacing:.18em;color:rgba(238,234,226,.5)}
.m2c-step h3{grid-column:2;margin:.1rem 0 .15rem;font-size:.95rem;letter-spacing:.04em;color:var(--paper)}
.m2c-step p{grid-column:2;margin:0;font-size:.72rem;line-height:1.55;color:rgba(238,234,226,.55);max-width:24rem}
.m2c-step .m2c-step-visual{display:none}
.m2c-step.active{opacity:1}
.m2c-step.active .m2c-node{border-color:var(--gold);color:#0b0a08;background:var(--gold);
  box-shadow:0 0 0 5px rgba(205,152,71,.12),0 0 18px rgba(205,152,71,.45)}
.m2c-step.active b{color:var(--gold)}
.m2c-step.active h3{color:#fff}

/* Right dynamic card */
.m2c-card-wrap{position:relative}
.m2c-card{position:relative;border:1px solid rgba(205,152,71,.32);border-radius:1.3rem;padding:1.6rem;
  background:linear-gradient(160deg,rgba(20,16,10,.9),rgba(8,7,6,.92));
  box-shadow:0 1.5rem 5rem rgba(0,0,0,.6),inset 0 0 60px rgba(205,152,71,.04)}
.m2c-card-tag{display:inline-block;padding:.3rem .7rem;border:1px solid var(--line);border-radius:2rem;
  font-family:var(--mono);font-size:.46rem;letter-spacing:.24em;text-transform:uppercase;color:var(--gold)}
.m2c-card-head{display:flex;align-items:baseline;gap:.8rem;margin:1rem 0 .4rem}
.m2c-card-num{font-family:var(--display);font-size:2.6rem;line-height:1;color:var(--gold)}
.m2c-card-title{margin:0;font-size:1.15rem;letter-spacing:.06em;color:#fff}
.m2c-card-desc{margin:0 0 1.2rem;font-size:.8rem;line-height:1.7;color:rgba(238,234,226,.72)}
.m2c-card-visual{min-height:11rem;border:1px solid rgba(205,152,71,.14);border-radius:.9rem;padding:1rem;
  background:rgba(0,0,0,.35);display:flex;flex-direction:column;gap:.55rem;justify-content:center}
.m2c-card-tags{display:flex;flex-wrap:wrap;gap:.45rem;margin-top:1.1rem}
.m2c-card-tags span{padding:.4rem .7rem;border:1px solid var(--line);border-radius:2rem;
  font-family:var(--mono);font-size:.46rem;letter-spacing:.12em;text-transform:uppercase;color:rgba(238,234,226,.7)}
.m2c-card.swap{animation:m2cSwap .5s ease}
@keyframes m2cSwap{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}

/* Mini-UI building blocks (reused across step visuals) */
.mui-row{display:flex;align-items:center;gap:.55rem}
.mui-chip{padding:.35rem .6rem;border:1px solid rgba(205,152,71,.28);border-radius:.5rem;background:rgba(205,152,71,.06);
  font-family:var(--mono);font-size:.5rem;letter-spacing:.06em;color:rgba(238,234,226,.85);white-space:nowrap}
.mui-chip b{color:var(--gold)}
.mui-bubble{max-width:80%;padding:.5rem .7rem;border-radius:.7rem;font-size:.62rem;line-height:1.45}
.mui-bubble.in{align-self:flex-start;border:1px solid rgba(205,152,71,.25);background:rgba(205,152,71,.07);color:rgba(238,234,226,.9)}
.mui-bubble.out{align-self:flex-end;background:var(--gold);color:#0b0a08}
.mui-stat{display:flex;flex-direction:column;gap:.15rem;flex:1}
.mui-stat b{font-size:1rem;color:#fff}
.mui-stat b i{font-style:normal;color:#7fd39b;font-size:.55rem;margin-left:.25rem}
.mui-stat span{font-family:var(--mono);font-size:.42rem;letter-spacing:.1em;text-transform:uppercase;color:rgba(238,234,226,.5)}
.mui-stats{display:flex;gap:.8rem}
.mui-line{display:flex;justify-content:space-between;padding:.35rem 0;border-bottom:1px solid rgba(205,152,71,.1);font-size:.6rem;color:rgba(238,234,226,.7)}
.mui-line:last-child{border-bottom:0}
.mui-line b{color:var(--gold);font-weight:500}
.mui-cols{display:flex;gap:.5rem}
.mui-col{flex:1;border:1px solid rgba(205,152,71,.16);border-radius:.5rem;padding:.4rem;text-align:center}
.mui-col span{display:block;font-family:var(--mono);font-size:.42rem;letter-spacing:.08em;text-transform:uppercase;color:rgba(238,234,226,.5);margin-bottom:.3rem}
.mui-col b{font-size:.85rem;color:#fff}
.mui-cal{display:grid;grid-template-columns:repeat(4,1fr);gap:.3rem}
.mui-cal i{height:1.4rem;border-radius:.3rem;background:rgba(205,152,71,.08);font-style:normal;display:grid;place-items:center;font-family:var(--mono);font-size:.42rem;color:rgba(238,234,226,.45)}
.mui-cal i.on{background:var(--gold);color:#0b0a08;font-weight:600}
.mui-badge{display:flex;align-items:center;gap:.7rem}
.mui-badge .tick{width:2.2rem;height:2.2rem;border-radius:50%;background:var(--gold);color:#0b0a08;display:grid;place-items:center;font-size:1.1rem;font-weight:700;box-shadow:0 0 18px rgba(205,152,71,.5)}
.mui-badge div b{display:block;color:#fff;font-size:.85rem}
.mui-badge div span{font-family:var(--mono);font-size:.45rem;letter-spacing:.1em;text-transform:uppercase;color:#7fd39b}

/* Bottom quote */
.m2c-quote{position:relative;z-index:1;max-width:1100px;margin:0 auto;padding:2.2rem 2.5rem 5rem}
.m2c-quote-inner{position:relative;border:1px solid rgba(205,152,71,.3);border-radius:1.2rem;
  padding:2.2rem 2.4rem;background:linear-gradient(120deg,rgba(20,16,10,.85),rgba(8,7,6,.9));display:flex;gap:1.2rem;align-items:flex-start}
.m2c-quote-inner b{font-family:var(--display);font-size:3rem;line-height:.6;color:var(--gold)}
.m2c-quote-inner p{margin:0;font-family:var(--display);font-size:clamp(1.7rem,3.4vw,3rem);line-height:1.25;color:var(--paper)}
.m2c-quote-inner p span{color:var(--gold)}

/* ---------- Tablet ---------- */
@media (max-width:1024px){
  .m2c-grid{grid-template-columns:1fr 1.05fr;gap:2rem;max-width:760px}
  .m2c-intro{grid-column:1/-1}
  .m2c-intro h2{font-size:clamp(2.4rem,6vw,3.4rem)}
}

/* ---------- Mobile: compact scroll-scrub like desktop ---------- */
@media (max-width:760px){
  .m2c{overflow:visible}
  .m2c-scroll{height:360vh}
  .m2c-sticky{
    position:-webkit-sticky;
    position:sticky;
    top:0;
    height:100vh;
    height:100dvh;
    display:flex;
    align-items:center;
    padding:0;
    overflow:hidden;
  }
  .m2c-grid{grid-template-columns:1fr;max-width:none;padding:0 1rem;gap:.8rem}
  .m2c-intro .section-code{font-size:.46rem}
  .m2c-intro h2{margin:.55rem 0;font-size:clamp(2rem,10vw,2.85rem);line-height:.94}
  .m2c-intro p{font-size:.78rem;line-height:1.55;max-width:20rem}
  .m2c-timeline{
    display:grid;
    grid-template-columns:repeat(7,1fr);
    gap:.28rem;
    padding:1.05rem 0 .15rem;
  }
  .m2c-timeline::before{left:0;right:0;top:.72rem;bottom:auto;width:auto;height:2px}
  .m2c-progress{left:0;top:.72rem;width:0;height:2px;transition:width .35s ease}
  .m2c-step{display:flex;justify-content:center;padding:0;opacity:.55}
  .m2c-step .m2c-node{
    position:relative;
    left:auto;
    top:auto;
    width:1.75rem;
    height:1.75rem;
  }
  .m2c-node svg{width:.86rem;height:.86rem}
  .m2c-step b,.m2c-step h3,.m2c-step p,.m2c-step .m2c-step-visual{display:none}
  .m2c-card-wrap{display:block}
  .m2c-card{border-radius:1rem;padding:1rem}
  .m2c-card-tag{font-size:.36rem;letter-spacing:.16em;padding:.25rem .55rem}
  .m2c-card-head{margin:.7rem 0 .25rem;gap:.55rem}
  .m2c-card-num{font-size:2rem}
  .m2c-card-title{font-size:.86rem}
  .m2c-card-desc{margin:0 0 .75rem;font-size:.68rem;line-height:1.55}
  .m2c-card-visual{min-height:8.6rem;border-radius:.72rem;padding:.75rem;gap:.4rem}
  .m2c-card-tags{gap:.32rem;margin-top:.7rem}
  .m2c-card-tags span{font-size:.34rem;padding:.28rem .45rem}
  .mui-chip{font-size:.38rem;padding:.28rem .42rem}
  .mui-bubble{font-size:.52rem;padding:.42rem .55rem}
  .mui-stat b{font-size:.82rem}
  .mui-stat span,.mui-line,.mui-col span,.mui-badge div span{font-size:.36rem}
  .mui-col b,.mui-badge div b{font-size:.72rem}
  .mui-cal i{height:1.12rem;font-size:.34rem}
  .m2c-quote{padding:1.5rem 1.1rem 3.5rem}
  .m2c-quote-inner{flex-direction:column;gap:.4rem;padding:1.4rem}
}
/* T3 tighten */
@media(min-width:761px){.m2c-grid{align-items:center}.m2c-intro{align-self:center}}

/* ============================================================
   PHASE 3 — Polish : carte plus profonde, nœud actif plus net
   ============================================================ */
.m2c-card{box-shadow:0 1.8rem 5.5rem rgba(0,0,0,.62),inset 0 0 70px rgba(205,152,71,.05)}
.m2c-step.active .m2c-node{box-shadow:0 0 0 5px rgba(205,152,71,.14),0 0 22px rgba(205,152,71,.5)}