.etude-ia-hero{isolation:isolate;padding-top:calc(var(--mk-nav-height) + 2.25rem);background:var(--mk-accent);color:var(--mk-inverse-text);padding-bottom:2.5rem;position:relative;overflow:hidden}.etude-ia-hero:before{content:"";z-index:0;pointer-events:none;background:radial-gradient(72% 58% at 88% 6%,#0b6fd633,#0000 60%),radial-gradient(48% 42% at 6% 90%,#ffffff0d,#0000 56%);position:absolute;inset:0}.etude-ia-hero-inner{z-index:1;position:relative}.etude-ia-hero-copy{max-width:38rem}.etude-ia-kicker{font-family:var(--mk-font-sans);letter-spacing:.14em;text-transform:uppercase;color:var(--mk-signal);margin:0;font-size:.75rem;font-weight:600}.etude-ia-hero .etude-ia-kicker{color:#ffffffb8}.etude-ia-hero h1{letter-spacing:-.03em;color:#fff;max-width:16ch;margin:.85rem 0 0;font-size:clamp(2.15rem,4.4vw,3.35rem);font-weight:700;line-height:1.05}.etude-ia-subtitle{font-family:var(--font-landing-body), Georgia, serif;color:#ffffffe0;margin:1rem 0 0;font-size:clamp(1.25rem,2vw,1.55rem);font-style:italic;font-weight:400;line-height:1.35}.etude-ia-lead{color:#ffffffbd;max-width:38rem;margin:1.15rem 0 0;font-size:1.05rem;line-height:1.65}.etude-ia-actions{flex-wrap:wrap;align-items:center;gap:.85rem 1.25rem;margin-top:1.75rem;display:flex}.etude-ia-hero .landing-btn-primary{color:var(--mk-accent);background:#fff}.etude-ia-hero .landing-btn-primary:hover{background:#e8eef6}.etude-ia-hero .landing-btn-ghost{color:#fff;background:0 0;border-color:#ffffff47}.etude-ia-hero .landing-btn-ghost:hover{background:#ffffff0f;border-color:#fff}.etude-ia-fan{width:min(100%,22rem);height:16.5rem;margin:2rem auto 0;position:relative;overflow:hidden}.etude-ia-fan-page{border-radius:.35rem;width:68%;height:auto;transition:transform .28s;position:absolute;top:0;box-shadow:0 16px 36px #04102847}.etude-ia-fan-page--left{z-index:1;left:4%;transform:rotate(-6deg)}.etude-ia-fan-page--right{z-index:1;right:4%;transform:rotate(6deg)}.etude-ia-fan-page--cover{z-index:2;width:68%;left:16%;transform:rotate(0)}.etude-ia-stats{gap:2rem;display:grid}.etude-ia-stat-figure{letter-spacing:-.03em;color:var(--mk-accent);margin:0;font-size:clamp(2rem,3vw,2.6rem);font-weight:700}.etude-ia-stat-text{max-width:22rem;color:var(--mk-text-secondary);margin:.55rem 0 0;line-height:1.6}.etude-ia-source{color:var(--mk-text-muted);margin:1.25rem 0 0;font-size:.8125rem}.etude-ia-page .etude-ia-band{padding-top:3rem;padding-bottom:3rem}.etude-ia-contents{gap:1.25rem;display:grid}.etude-ia-list{margin:0;padding:0;list-style:none}.etude-ia-list li{border-top:1px solid var(--mk-border);color:var(--mk-text);break-inside:avoid;padding:.7rem 0;line-height:1.45}.etude-ia-list li:last-child{border-bottom:1px solid var(--mk-border)}.etude-ia-study{color:var(--mk-text);background:#fff}.etude-ia-preview{pointer-events:none;-webkit-user-select:none;user-select:none;margin-top:2rem}.etude-ia-preview ol{border:1px solid var(--mk-border);border-radius:var(--mk-radius-lg);background:var(--mk-surface-subtle);margin:0;padding:.4rem 0;list-style:none}.etude-ia-preview li p{color:var(--mk-text-secondary);align-items:center;gap:.7rem;margin:0;padding:.55rem .9rem;font-size:.875rem;display:flex}.etude-ia-preview li>p>span{border-radius:var(--mk-radius-full);border:1px solid var(--mk-border);width:1.35rem;height:1.35rem;color:var(--mk-accent);background:#fff;flex:none;justify-content:center;align-items:center;font-size:.7rem;font-weight:600;display:inline-flex}.etude-ia-preview li.is-open p{color:var(--mk-text);font-weight:600}.etude-ia-preview li.is-open>p>span{background:var(--mk-accent);border-color:var(--mk-accent);color:#fff}.etude-ia-preview-card{border-radius:var(--mk-radius-md);border:1px solid var(--mk-border);background:#fff;margin:0 .7rem .7rem 2.95rem;padding:.85rem .9rem}.etude-ia-preview-card>p{color:var(--mk-text);margin:0 0 .7rem;font-size:.875rem;font-weight:600;line-height:1.4}.etude-ia-preview-card ul{gap:.4rem;margin:0;padding:0;list-style:none;display:grid}.etude-ia-preview-card li{border-radius:var(--mk-radius-sm);border:1px solid var(--mk-border);color:var(--mk-text-secondary);align-items:center;gap:.55rem;padding:.45rem .6rem;font-size:.8125rem;display:flex}.etude-ia-preview-card li span{border-radius:var(--mk-radius-full);border:1.5px solid var(--mk-border);background:#fff;width:.7rem;height:.7rem}.etude-ia-preview-card li.is-on{border-color:var(--mk-accent);color:var(--mk-text);background:color-mix(in srgb, var(--mk-accent) 6%, #fff)}.etude-ia-preview-card li.is-on span{border-color:var(--mk-accent);background:var(--mk-accent);box-shadow:inset 0 0 0 2px #fff}.etude-ia-study-lead,.etude-ia-study-list{color:var(--mk-text-secondary)}.etude-ia-study-list{margin:1.25rem 0 0;padding:0;list-style:none}.etude-ia-study-list li{margin-top:.55rem;padding-left:1.1rem;position:relative}.etude-ia-study-list li:before{content:"";background:var(--mk-accent);border-radius:999px;width:.4rem;height:.4rem;position:absolute;top:.55rem;left:0}.etude-ia-chips{flex-wrap:wrap;gap:.5rem;margin-top:1.5rem;display:flex}.etude-ia-chip{border-radius:var(--mk-radius-full);border:1px solid var(--mk-border);color:var(--mk-text);padding:.35rem .75rem;font-size:.8125rem}.etude-ia-study-actions{margin-top:1.75rem}.etude-ia-interview{color:var(--mk-text-secondary);margin:.85rem 0 0;font-size:.9375rem}.etude-ia-interview a{color:var(--mk-accent);text-underline-offset:.15em;text-decoration:underline}@media (min-width:800px){.etude-ia-hero-inner{grid-template-columns:minmax(0,1.05fr) minmax(16rem,.95fr);align-items:center;gap:2.5rem;display:grid}.etude-ia-page .etude-ia-band{padding-top:3.5rem;padding-bottom:3.5rem}.etude-ia-fan{width:100%;height:24rem;margin:0}.etude-ia-stats{grid-template-columns:repeat(3,minmax(0,1fr));gap:1.5rem}.etude-ia-contents{gap:1.5rem}.etude-ia-study-inner{grid-template-columns:minmax(0,1.05fr) minmax(16rem,.9fr);align-items:center;gap:2.5rem;display:grid}.etude-ia-preview{margin-top:0}.etude-ia-list{grid-template-columns:1fr 1fr;column-gap:3rem;display:grid}.etude-ia-list li:nth-last-child(-n+2){border-bottom:1px solid var(--mk-border)}}@media (hover:hover) and (min-width:800px){.etude-ia-fan:hover .etude-ia-fan-page--left{transform:rotate(-10deg)translate(-.85rem)}.etude-ia-fan:hover .etude-ia-fan-page--right{transform:rotate(10deg)translate(.85rem)}}@media (prefers-reduced-motion:reduce){.etude-ia-fan-page{transition:none}}