:root{--wine:#64152c;--red:#a92347;--pink:#edb6c4;--paper:#fffdf9;--cream:#fbf6f1;--ink:#171313;--muted:#5f5558;--line:rgba(100,21,44,.16);--sans:'Montserrat',sans-serif;--serif:'Cormorant Garamond',serif;--script:'Allura',cursive}*{box-sizing:border-box}html,body{margin:0;min-height:100%;font-family:var(--sans);background:#050505;color:var(--ink)}button{font:inherit}.deck{height:100svh;overflow:hidden;position:relative;background:var(--paper)}.progress{position:fixed;z-index:30;left:0;top:0;height:4px;background:linear-gradient(90deg,var(--pink),var(--red));transition:width .25s}.slide{display:none;position:absolute;inset:0;padding:42px 5vw 86px;overflow:auto;background:var(--paper)}.slide.active{display:flex;flex-direction:column}.slide.dark{background:#050505;color:#fff}.slide.wine{background:var(--wine);color:#fff}.topline{display:flex;justify-content:space-between;align-items:center;padding-bottom:16px;border-bottom:1px solid var(--line);font-size:10px;font-weight:800;letter-spacing:.13em;text-transform:uppercase}.dark .topline,.wine .topline{border-color:rgba(255,255,255,.18)}.brand{font-size:18px;letter-spacing:-.04em}.kicker{color:var(--red);font-size:11px;font-weight:800;letter-spacing:.18em;text-transform:uppercase}.dark .kicker,.wine .kicker{color:var(--pink)}h1,h2,h3,p{margin:0}h1,h2,h3{font-family:var(--sans);text-transform:uppercase;letter-spacing:-.06em}h1{font-size:clamp(54px,7vw,108px);line-height:.82;max-width:11ch}h2{font-size:clamp(42px,5.4vw,78px);line-height:.86;max-width:13ch}h3{font-size:22px;line-height:1}.script{display:block;font-family:var(--script);font-weight:400;text-transform:none;color:var(--red);letter-spacing:-.02em;transform:rotate(-3deg);font-size:.78em;margin-left:12%}.dark .script,.wine .script{color:var(--pink)}.hero-grid,.split{flex:1;display:grid;grid-template-columns:1.05fr 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strong{display:block;font-size:clamp(28px,3.5vw,54px);line-height:.9;letter-spacing:-.06em;margin-bottom:14px}.card p{font-size:13px;line-height:1.55;color:var(--muted)}.dark .card p,.wine .card p{color:rgba(255,255,255,.72)}.metric{padding:34px;border-radius:28px;background:var(--wine);color:#fff}.metric b{display:block;font-size:clamp(66px,9vw,132px);line-height:.75;letter-spacing:-.09em}.metric span{display:block;margin-top:22px;font-size:13px;line-height:1.5;color:rgba(255,255,255,.74)}.assumptions{display:grid;gap:12px}.assumption{display:flex;justify-content:space-between;gap:30px;padding:17px 0;border-bottom:1px solid var(--line);font-size:14px}.assumption strong{text-align:right}.formula{margin-top:24px;padding:18px 20px;border-radius:15px;background:#f5e7eb;color:var(--wine);font-weight:700}.flow{display:grid;gap:10px;margin-top:34px}.flow-step{display:grid;grid-template-columns:46px 1fr auto;gap:18px;align-items:center;padding:18px;border:1px solid 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p{color:rgba(255,255,255,.74)}.disclaimer{margin-top:18px;font-size:11px;color:var(--muted);line-height:1.5}.roadmap{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:38px}.phase{padding:27px;border-radius:22px;background:#fff;border:1px solid var(--line)}.phase span{color:var(--red);font-size:10px;font-weight:800;letter-spacing:.13em;text-transform:uppercase}.phase h3{margin:38px 0 18px}.phase li{margin-bottom:9px;color:var(--muted);font-size:13px;line-height:1.45}.cta{display:inline-flex;width:max-content;margin-top:30px;padding:16px 22px;border-radius:999px;background:var(--pink);color:var(--wine);text-decoration:none;font-size:11px;font-weight:800;letter-spacing:.1em;text-transform:uppercase}.deck-nav{position:fixed;z-index:40;left:50%;bottom:18px;transform:translateX(-50%);display:flex;align-items:center;gap:5px;padding:7px;border:1px solid rgba(255,255,255,.2);border-radius:999px;background:rgba(5,5,5,.92);color:#fff}.deck-nav button{width:38px;height:38px;border:0;border-radius:50%;background:transparent;color:#fff;cursor:pointer}.deck-nav button:hover{background:rgba(255,255,255,.12)}.deck-nav button:disabled{opacity:.3}.counter{min-width:70px;text-align:center;font-size:10px;letter-spacing:.1em}.source{margin-top:auto;padding-top:18px;border-top:1px solid var(--line);font-size:10px;color:var(--muted)}.dark .source,.wine .source{border-color:rgba(255,255,255,.18);color:rgba(255,255,255,.6)}
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@media print{@page{size:13.333in 7.5in;margin:0}.deck{height:auto}.slide,.slide.active{display:flex!important;position:relative;width:13.333in;height:7.5in;page-break-after:always;padding:.4in .5in;overflow:hidden}.deck-nav,.progress{display:none}}

/* Navigation tactile : profondeur et charnière d'une page tournée */
.deck{perspective:1800px}.slide{backface-visibility:hidden;transform-style:preserve-3d;will-change:transform,opacity}@media(prefers-reduced-motion:reduce){.slide{will-change:auto}.progress{transition:none}}