/* ==========================================================
   StillArc — site 01 (Kinthrel · Routes suisses)
   Version fine et légère : typo 300–600, filets 1px, marges aérées
   ========================================================== */
:root{
  --bone:#F4F2EE; --ink:#121212; --red:#DA291C; --red-dark:#B21F14;
  --night:#16131C; --night-2:#100E15; --night-3:#1C1923;
  --line-dark:rgba(244,242,238,.16); --line-light:rgba(18,18,18,.16);
  --muted-light:#5E5B55; --muted-dark:#A9A3B5; --text-dark:#CFCAD8;
  --sans:'Inter Tight',system-ui,-apple-system,'Segoe UI',sans-serif;
  --mono:'JetBrains Mono',ui-monospace,Consolas,monospace;
  --ease:cubic-bezier(.2,.8,.2,1);
  --hud-h:44px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--hud-h) + 8px)}
body{margin:0;background:var(--ink);color:var(--bone);font-family:var(--sans);font-weight:400;-webkit-font-smoothing:antialiased}
body.is-locked{overflow:hidden}
img,video{display:block;max-width:100%}
a{color:inherit}
button{font:inherit}
[hidden]{display:none!important}
.mono{font-family:var(--mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;font-weight:400}
.muted{opacity:.7}
.red{color:var(--red)}
.red-dark{color:var(--red-dark)}
.small{font-size:12px;line-height:1.5;margin:0}
.dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--red)}
.wrap{max-width:1240px;margin:0 auto;padding-left:40px;padding-right:40px}
@media (max-width:640px){.wrap{padding-left:20px;padding-right:20px}}
:focus-visible{outline:2px solid var(--red);outline-offset:3px}

/* ---------- Écran titre ---------- */
.screen{position:fixed;inset:0;z-index:50;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:40px 24px}
.screen--title{background:#0E0E0E;gap:44px}
.title__mark{width:64px;animation:breath 2.6s ease-in-out infinite}
.title__enter{background:transparent;color:var(--bone);border:1px solid rgba(244,242,238,.6);padding:0 28px;min-height:52px;font-family:var(--mono);font-size:12px;letter-spacing:.2em;text-transform:uppercase;cursor:pointer;display:inline-flex;align-items:center;gap:12px;transition:background .2s,color .2s,border-color .2s}
.title__enter:hover{background:var(--bone);color:var(--ink);border-color:var(--bone)}
.title__mute{background:none;border:0;color:#8C877F;font-family:var(--mono);font-size:11px;letter-spacing:.06em;cursor:pointer;min-height:44px;text-decoration:underline;text-underline-offset:4px}
.title__foot{position:absolute;left:24px;right:24px;bottom:20px;display:flex;justify-content:space-between;gap:12px;color:#5F5B55;font-size:10px}
.blink{animation:blink 1.6s steps(2,jump-none) infinite}
@keyframes blink{50%{opacity:.3}}
@keyframes breath{0%,100%{transform:scale(1);opacity:.85}50%{transform:scale(1.05);opacity:1}}
.screen.is-leaving{animation:fadeOut .6s ease forwards}
@keyframes fadeOut{to{opacity:0;visibility:hidden}}

/* ---------- Intro vidéo ---------- */
.screen--intro{background:#111;padding:0}
.intro__video{width:100%;height:100%;object-fit:contain;background:#111}
.intro__skip{position:absolute;right:20px;bottom:20px;background:none;color:#8C877F;border:1px solid #33322F;padding:0 14px;min-height:40px;cursor:pointer}

/* ---------- Studio ---------- */
#site{animation:siteIn .8s ease both}
@keyframes siteIn{from{opacity:0}to{opacity:1}}
.studio{background:var(--bone);color:var(--ink)}
.studio__bar{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;padding-top:14px;padding-bottom:14px;border-bottom:1px solid var(--line-light);max-width:none}
.studio__logo{height:24px;width:auto}
.studio__tools{display:flex;flex-wrap:wrap;align-items:center;gap:16px}
.btn-sound{background:transparent;color:var(--ink);border:1px solid var(--line-light);padding:0 10px;min-height:32px;font-family:var(--mono);font-size:11px;text-transform:uppercase;letter-spacing:.06em;cursor:pointer}
.lang a{color:var(--muted-light);text-decoration:none}
.studio__body{display:flex;flex-wrap:wrap;gap:48px;align-items:flex-end;justify-content:space-between;padding-top:64px;padding-bottom:48px}
.studio__line{margin:0;flex:1 1 520px;font-weight:300;font-size:clamp(26px,2.6vw,38px);letter-spacing:-.025em;line-height:1.15}
.projects{list-style:none;margin:0;padding:0;flex:0 1 460px;border-top:1px solid var(--ink)}
.projects a{display:grid;grid-template-columns:32px 1fr auto;grid-template-rows:auto auto;column-gap:12px;row-gap:2px;padding:14px 0;border-bottom:1px solid var(--line-light);text-decoration:none;color:var(--ink);transition:padding .25s var(--ease)}
.projects a:hover{padding-left:6px}
.projects .mono:first-child{grid-row:1/3;color:var(--muted-light);padding-top:4px}
.projects__name{font-weight:600;font-size:20px;letter-spacing:-.02em}
.projects__type{grid-column:2;font-size:14px;color:var(--muted-light)}
.projects__status{grid-column:3;grid-row:1/3;align-self:center;color:var(--muted-light);display:inline-flex;align-items:center;gap:6px}

/* ---------- Hero Kinthrel ---------- */
.hero{position:relative;min-height:82vh;overflow:hidden;display:flex;align-items:flex-end;background:var(--night)}
.hero__media{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero__shade{position:absolute;inset:0;background:linear-gradient(180deg,rgba(14,14,14,0) 45%,rgba(14,14,14,.7) 100%)}
.hero__content{position:relative;width:100%;padding-bottom:44px;display:flex;flex-wrap:wrap;gap:32px;align-items:flex-end;justify-content:space-between}
.hero__text{flex:1 1 560px;min-width:0;display:flex;flex-direction:column;gap:18px}
.tag{display:inline-flex;align-items:center;gap:8px;background:rgba(14,14,14,.7);padding:7px 10px;align-self:flex-start}
.hero__logo{margin:0;width:min(440px,100%);filter:drop-shadow(0 8px 24px rgba(0,0,0,.45))}
.hero__logo img{width:100%;height:auto}
.hero__tagline{margin:0;font-weight:500;font-size:clamp(24px,2.4vw,34px);letter-spacing:-.025em;line-height:1.1;text-shadow:0 1px 20px rgba(0,0,0,.55)}
.hero__side{flex:0 1 360px;min-width:0;display:flex;flex-direction:column;gap:16px}
.hero__pitch{margin:0;font-size:16px;line-height:1.55;color:#EEEAF2;text-shadow:0 1px 14px rgba(0,0,0,.6)}
.hero__cta{display:flex;flex-wrap:wrap;gap:8px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 18px;font-weight:500;font-size:15px;text-decoration:none;border:0;cursor:pointer;transition:transform .15s ease,background .15s ease}
.btn:hover{transform:translateY(-1px)}
.btn--light{background:var(--bone);color:var(--ink)}
.btn--red{background:var(--red);color:#fff}
.btn--red:hover{background:#C3241A}
.btn--block{width:100%;min-height:48px}

/* ---------- HUD ---------- */
.hud{position:sticky;top:0;z-index:20;background:rgba(244,242,238,.96);backdrop-filter:blur(6px);color:var(--ink);border-bottom:1px solid var(--line-light);display:flex;flex-wrap:wrap;align-items:stretch}
.hud__home{background:var(--ink);padding:0 14px;min-height:var(--hud-h);display:inline-flex;align-items:center}
.hud__home img{height:20px;width:auto}
.hud__chapters{flex:1 1 440px;display:flex;flex-wrap:wrap}
.hud__chapters a{flex:1 1 90px;text-decoration:none;color:var(--ink);padding:0 14px;border-right:1px solid var(--line-light);display:flex;align-items:center;gap:8px;min-height:var(--hud-h);font-weight:500;font-size:13px;transition:background .2s,color .2s}
.hud__chapters a .mono{color:var(--muted-light)}
.hud__chapters a.is-active{background:var(--ink);color:var(--bone)}
.hud__chapters a.is-active .mono{color:var(--red)}
.hud__stats{display:flex;align-items:center;gap:14px;padding:0 14px}
.hud__stats b{font-weight:400}
.hud__wave{color:var(--red-dark)}
.hud__wave.bump{animation:bump .5s var(--ease)}
@keyframes bump{40%{transform:scale(1.3)}}
.hud__sound{background:transparent;border:1px solid var(--line-light);min-width:32px;min-height:32px;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;color:var(--ink)}
body.is-muted .sound-wave{display:none}
.hud__cta{background:var(--red);color:#fff;padding:0 16px;min-height:var(--hud-h);display:inline-flex;align-items:center;font-weight:500;font-size:13px;text-decoration:none}
@media (max-width:900px){.hud__stats{display:none}.hud__chapters a{flex-basis:60px;font-size:12px;padding:0 8px}}

/* ---------- Typo chapitres ---------- */
.game{background:var(--night)}
.chapter{padding-top:96px;padding-bottom:88px}
.chapter-head{display:flex;flex-wrap:wrap;gap:32px 48px;align-items:flex-end;justify-content:space-between;padding-bottom:40px}
.chapter-head>div{flex:1 1 520px;min-width:0;display:flex;flex-direction:column;gap:12px}
.chapter-head--solo{padding-top:88px}
.eyebrow{color:var(--muted-dark)}
.eyebrow--red{color:#FF8A7E}
.h-xl{margin:0;font-weight:500;font-size:clamp(30px,3.4vw,50px);line-height:1.04;letter-spacing:-.035em}
.h-l{margin:0;font-weight:500;font-size:clamp(26px,2.6vw,38px);line-height:1.08;letter-spacing:-.03em}
.lead{margin:0;flex:0 1 400px;font-size:16px;line-height:1.6;color:var(--text-dark)}
.lead strong{color:var(--bone);font-weight:500}

/* ---------- 01 Grandir : paliers ---------- */
.tiers{list-style:none;margin:0 0 24px;padding:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px;position:relative}
.tier{background:var(--night-2);border:1px solid var(--line-dark);display:flex;flex-direction:column;transition:border-color .2s,transform .3s var(--ease)}
.tier:hover{border-color:rgba(244,242,238,.4);transform:translateY(-3px)}
.tier img{width:100%;aspect-ratio:16/10;object-fit:cover}
.tier__body{padding:14px 14px 16px;display:flex;flex-direction:column;gap:4px}
.tier__body .mono{color:var(--muted-dark)}
.tier__last{color:#FF8A7E!important}
.tier b{font-weight:500;font-size:17px;letter-spacing:-.01em}
.tier__unlock{font-size:13px;color:var(--text-dark)}
.split{display:grid;grid-template-columns:repeat(auto-fit,minmax(340px,1fr));gap:12px}
.frame{position:relative;margin:0;border:1px solid var(--line-dark);aspect-ratio:16/10;overflow:hidden;background:var(--night-3)}
.frame video{width:100%;height:100%;object-fit:cover}
.frame__tag{position:absolute;left:12px;bottom:12px;background:rgba(14,14,14,.75);padding:5px 8px;font-size:10px;color:#E6E2EC}
.frame__tag--top{top:12px;bottom:auto}

/* Jour / nuit */
.daynight{margin:0;border:1px solid var(--line-dark);display:flex;flex-direction:column}
.daynight__stage{position:relative;flex:1;min-height:0;aspect-ratio:16/10;overflow:hidden;background:var(--night-3)}
.dn{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.dn--dusk,.dn--night{opacity:0}
.daynight__ctrl{display:flex;align-items:center;gap:14px;padding:10px 14px;border-top:1px solid var(--line-dark);background:var(--night-2)}
.daynight__ctrl label{color:var(--muted-dark);white-space:nowrap}
.daynight__ctrl input{flex:1;accent-color:var(--red);min-height:32px}

/* ---------- Diptyque + soleil ---------- */
.diptych{position:relative;display:flex;flex-wrap:wrap;min-height:600px;border-top:1px solid var(--line-dark);border-bottom:1px solid var(--line-dark);overflow:hidden}
.half{flex:1 1 0;min-width:300px;padding:44px 40px 52px;display:flex;flex-direction:column;gap:24px;transition:flex-grow .9s cubic-bezier(.7,0,.2,1)}
.half--build{background:var(--bone);color:var(--ink)}
.half--defend{flex-grow:1;background:var(--night-2);color:var(--bone)}
.diptych.is-wave .half--build{flex-grow:.6}
.diptych.is-wave .half--defend{flex-grow:2.2}
.half__meta{display:flex;justify-content:space-between;gap:12px;color:var(--muted-light)}
.half--defend .half__meta{color:var(--muted-dark)}
.half__title{margin:0;font-weight:600;font-size:clamp(56px,6.4vw,104px);line-height:.9;letter-spacing:-.06em}
.half--defend .half__title{text-align:right}
.half__media{margin:0}
.half__media img,.half__media video{width:100%;aspect-ratio:16/10;object-fit:cover}
.half__media--dark{border:1px solid var(--line-dark)}
/* Le soleil vit dans la partie sombre, à ~35 % de sa largeur */
.half--defend{position:relative}
.sun-wrap{position:absolute;left:35%;top:58%;width:220px;height:220px;transform:translate(-50%,-50%);z-index:3;display:flex;align-items:center;justify-content:center}
.diptych.is-wave .sun-wrap{left:22%}
.sun-wrap{transition:left .9s cubic-bezier(.7,0,.2,1)}
.sun{width:176px;height:176px;border-radius:50%;background:var(--red);border:0;cursor:pointer;position:relative;z-index:2;display:flex;align-items:flex-end;justify-content:center;padding-bottom:36px;
  box-shadow:0 0 0 6px rgba(218,41,28,.18),0 18px 50px rgba(218,41,28,.45);animation:sunBob 3.2s ease-in-out infinite;transition:transform .25s var(--ease),box-shadow .25s}
.sun:hover{animation-play-state:paused;transform:scale(1.1);box-shadow:0 0 0 10px rgba(218,41,28,.25),0 24px 70px rgba(218,41,28,.6)}
.sun:active{transform:scale(.96)}
@keyframes sunBob{0%,100%{transform:translateY(0) scale(1)}50%{transform:translateY(-8px) scale(1.04)}}
.sun__hole{position:absolute;top:30px;left:50%;margin-left:-14px;width:28px;height:28px;border-radius:50%;background:var(--bone)}
.sun__label{color:#fff;font-weight:600;font-size:15px;line-height:1.15;text-align:center;width:130px;letter-spacing:-.01em}
.sun__ring{position:absolute;left:50%;top:50%;width:176px;height:176px;margin:-88px 0 0 -88px;border-radius:50%;border:2px solid rgba(218,41,28,.7);animation:ring 2.4s ease-out infinite;pointer-events:none}
.sun__ring--2{animation-delay:1.2s}
@keyframes ring{0%{transform:scale(1);opacity:.8}100%{transform:scale(1.7);opacity:0}}
.sun__orbit{position:absolute;inset:0;width:100%;height:100%;animation:orbit 18s linear infinite;pointer-events:none}
@keyframes orbit{to{transform:rotate(360deg)}}
.sun__hint{position:absolute;top:-6px;left:50%;transform:translateX(-50%);color:#FF8A7E;white-space:nowrap;animation:hintBob 1.6s ease-in-out infinite}
.sun__hint::after{content:"";display:block;width:1px;height:14px;margin:6px auto 0;background:#FF8A7E}
@keyframes hintBob{50%{transform:translate(-50%,5px)}}
.diptych.is-wave .sun__hint{display:none}
.diptych.is-wave .sun{background:var(--bone)}
.diptych.is-wave .sun__label{color:var(--ink)}
.diptych.is-wave .sun__hole{background:var(--red)}
.wave-banner{position:absolute;left:0;right:0;top:36px;z-index:2;background:var(--red);color:#fff;padding:10px 40px;display:flex;justify-content:space-between;gap:16px;font-weight:600;font-size:16px;letter-spacing:.02em;text-transform:uppercase;animation:bannerIn .45s var(--ease) both}
@keyframes bannerIn{from{transform:translateX(-100%)}to{transform:none}}
.shake{animation:shake .5s ease-out 1}
@keyframes shake{15%{transform:translate(-5px,2px)}30%{transform:translate(4px,-2px)}45%{transform:translate(-3px,2px)}60%{transform:translate(2px,-1px)}75%{transform:translate(-1px,1px)}}
.flash::after{content:"";position:absolute;inset:0;background:var(--red);opacity:0;pointer-events:none;animation:flash .6s ease-out}
@keyframes flash{10%{opacity:.25}100%{opacity:0}}
@media (max-width:760px){.half{padding:32px 20px}.half--defend{min-height:520px}.sun-wrap{left:50%;top:auto;bottom:-10px;transform:translate(-50%,0)}.sun{width:140px;height:140px;padding-bottom:28px}.sun__ring{width:140px;height:140px;margin:-70px 0 0 -70px}.sun__hole{top:24px}.wave-banner{font-size:13px;padding:8px 20px}}

/* ---------- 02 Défendre ---------- */
.combat{background:var(--night-2)}
.viewfinder{position:relative;margin:0;aspect-ratio:21/9;border:1px solid rgba(218,41,28,.6);background:var(--night-3);overflow:hidden}
.viewfinder video{width:100%;height:100%;object-fit:cover}
.corner{position:absolute;width:18px;height:18px;border:0 solid var(--red)}
.corner--tl{left:12px;top:12px;border-left-width:2px;border-top-width:2px}
.corner--tr{right:12px;top:12px;border-right-width:2px;border-top-width:2px}
.corner--bl{left:12px;bottom:12px;border-left-width:2px;border-bottom-width:2px}
.corner--br{right:12px;bottom:12px;border-right-width:2px;border-bottom-width:2px}
.viewfinder__tag{position:absolute;left:50%;top:16px;transform:translateX(-50%);background:var(--red);color:#fff;padding:5px 10px;animation:blink 1.8s steps(2,jump-none) infinite}
.viewfinder .frame__tag{left:auto;right:40px;bottom:16px}
.features{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:12px;margin-top:12px}
.feature{display:flex;flex-direction:column;gap:6px;padding-bottom:6px}
.feature__media{position:relative;aspect-ratio:4/3;overflow:hidden;border:1px solid var(--line-dark);margin-bottom:8px;background:var(--night-3)}
.feature__media img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease)}
.feature:hover .feature__media img{transform:scale(1.04)}
.feature__media--slot{display:flex;align-items:center;justify-content:center;text-align:center;line-height:1.8;color:var(--muted-dark)}
.feature>.mono{color:#FF8A7E}
.feature h3{margin:0;font-size:18px;font-weight:500;letter-spacing:-.015em}
.feature p{margin:0;font-size:14px;line-height:1.55;color:var(--text-dark)}

/* ---------- 03 Explorer ---------- */
.biomes{display:flex;flex-wrap:wrap;border:1px solid var(--line-dark)}
.biomes__list{flex:1 1 240px;display:flex;flex-direction:column;border-right:1px solid var(--line-dark)}
.biome-tab{text-align:left;border:0;border-bottom:1px solid var(--line-dark);padding:16px 18px;cursor:pointer;display:grid;grid-template-columns:28px 1fr;row-gap:2px;background:transparent;color:var(--muted-dark);transition:background .15s,color .15s}
.biome-tab .mono:first-child{grid-row:1/3}
.biome-tab b{font-weight:500;font-size:17px;color:var(--bone)}
.biome-tab .mono:last-child{grid-column:2;font-size:10px}
.biome-tab:hover{background:rgba(244,242,238,.05)}
.biome-tab.is-active{background:var(--bone);color:var(--muted-light)}
.biome-tab.is-active b{color:var(--ink)}
.biomes__screen{flex:3 1 520px;min-width:0;position:relative;aspect-ratio:16/9;background:var(--night-3);overflow:hidden}
.biomes__screen video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:filter .3s}
.biomes__screen.is-locked video{filter:saturate(.6) brightness(.6)}
.stamp{position:absolute;left:50%;top:44%;border:2px solid var(--red);color:var(--red);font-weight:600;font-size:clamp(22px,3vw,40px);letter-spacing:.04em;padding:6px 18px;text-transform:uppercase;background:rgba(14,14,14,.55);transform:translate(-50%,-50%) rotate(-6deg);animation:stamp .35s var(--ease) both;white-space:nowrap}
@keyframes stamp{from{transform:translate(-50%,-50%) rotate(-6deg) scale(1.5);opacity:0}}
.biomes__desc{position:absolute;left:14px;bottom:14px;right:14px;max-width:460px;background:rgba(14,14,14,.78);padding:12px 14px;display:flex;flex-direction:column;gap:3px}
.biomes__desc b{font-size:16px;font-weight:500}
.biomes__desc span{font-size:13px;line-height:1.45;color:var(--text-dark)}
@media (max-width:860px){.biomes__list{border-right:0;border-bottom:1px solid var(--line-dark);flex-direction:row;overflow-x:auto}.biome-tab{flex:1 0 160px;border-bottom:0;border-right:1px solid var(--line-dark)}}

/* ---------- 04 Playtest ---------- */
.playtest{background:var(--ink)}
.playtest__inner{display:flex;flex-wrap:wrap;gap:56px;padding-top:96px;padding-bottom:96px}
.playtest__text{flex:1 1 360px;min-width:0;display:flex;flex-direction:column;gap:18px}
.playtest__text p{margin:0;font-size:16px;line-height:1.6;color:#CFCBC3;max-width:440px}
.playtest__card{flex:1 1 360px;min-width:0;background:var(--bone);color:var(--ink);padding:28px}
.pt-step{display:flex;flex-direction:column;gap:14px;min-height:260px;justify-content:center}
[data-step="ferme"]{justify-content:space-between}
.pt-big{margin:0;font-weight:500;font-size:clamp(22px,2.2vw,30px);letter-spacing:-.025em;line-height:1.15}
.playtest label{display:flex;flex-direction:column;gap:6px;font-family:var(--mono);font-size:10px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted-light)}
.playtest input[type=text],.playtest input[type=email],.playtest textarea{font-family:var(--sans);font-size:16px;padding:11px 12px;border:1px solid rgba(18,18,18,.35);background:#fff;color:var(--ink);text-transform:none;letter-spacing:0}
.playtest input:focus,.playtest textarea:focus{border-color:var(--ink);outline:none}
.playtest textarea{resize:vertical}
.playtest .check{flex-direction:row;align-items:center;gap:10px;font-family:var(--sans);font-size:14px;text-transform:none;letter-spacing:0;color:var(--ink);min-height:40px}
.check input{width:18px;height:18px;accent-color:var(--red)}
.hp{position:absolute;left:-9999px}
.form-error{margin:0;color:var(--red-dark);font-size:14px}

/* ---------- Projet 02 : Routes suisses ---------- */
.routes{background:var(--bone);color:var(--ink)}
.routes__inner{display:flex;flex-wrap:wrap;gap:48px;align-items:center;padding-top:80px;padding-bottom:80px}
.routes__text{flex:1 1 360px;display:flex;flex-direction:column;gap:14px}
.routes__text .eyebrow{color:var(--muted-light)}
.routes__text p{margin:0;font-size:16px;line-height:1.6;color:#3B3934;max-width:460px}
.routes__status{align-self:flex-start;border:1px solid var(--line-light);padding:6px 10px;color:var(--muted-light)}
.routes__media{flex:1 1 420px;margin:0}
.routes__slot{aspect-ratio:16/9;border:1px solid var(--line-light);display:flex;align-items:center;justify-content:center;text-align:center;line-height:1.8;color:var(--muted-light);background:repeating-linear-gradient(135deg,transparent 0 12px,rgba(18,18,18,.04) 12px 13px)}

/* ---------- Footer ---------- */
.footer{background:var(--bone);color:var(--ink);border-top:1px solid var(--line-light)}
.footer__inner{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:20px;padding-top:28px;padding-bottom:28px}
.footer__studio{display:flex;align-items:center;gap:14px;flex-wrap:wrap;color:var(--muted-light);font-size:14px}
.footer__studio img{height:22px;width:auto}
.footer__links{display:flex;flex-wrap:wrap;align-items:center;gap:18px;color:var(--muted-light)}
.btn-top{color:var(--ink);text-decoration:none;border:1px solid var(--line-light);padding:0 12px;min-height:34px;display:inline-flex;align-items:center}

/* ---------- Apparition au défilement ---------- */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .8s ease,transform .8s var(--ease)}
.reveal.is-in{opacity:1;transform:none}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none}
}

/* ---------- Mobile : ajustements ---------- */
@media (max-width:760px){
  .hud{flex-wrap:nowrap}
  .hud__chapters{flex:1 1 auto;flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none}
  .hud__chapters::-webkit-scrollbar{display:none}
  .hud__chapters a{flex:1 0 auto;padding:0 12px}
  .hud__cta{display:none}
  .hero{min-height:88svh}
  .hero__content{padding-bottom:28px;gap:20px}
  .hero__logo{width:min(300px,80%)}
  .hero__side{flex-basis:100%}
  .chapter{padding-top:64px;padding-bottom:56px}
  .chapter-head{padding-bottom:28px}
  .chapter-head--solo{padding-top:56px}
  .split{grid-template-columns:1fr}
  .viewfinder{aspect-ratio:16/10}
  .viewfinder .frame__tag{right:12px}
  .tiers{grid-template-columns:1fr 1fr;gap:8px}
  .tier b{font-size:15px}
  .tier__unlock{font-size:12px}
  .playtest__inner{padding-top:64px;padding-bottom:64px;gap:28px}
  .playtest__card{padding:20px}
  .biomes__desc{left:8px;right:8px;bottom:8px;padding:10px 12px}
}

/* ==========================================================
   Médias Kinthrel (v6) : paliers, comparateur, ennemis, stratégie
   ========================================================== */
.hero__note{position:absolute;right:24px;top:72px;z-index:2;color:rgba(244,242,238,.62);font-size:10px;background:rgba(14,14,14,.45);padding:5px 8px}
.frame img{width:100%;height:100%;object-fit:cover}
.frame__cap{position:absolute;left:0;right:0;bottom:0;padding:36px 16px 14px;display:flex;flex-direction:column;gap:3px;background:linear-gradient(180deg,rgba(14,14,14,0),rgba(14,14,14,.82) 55%);pointer-events:none}
.frame__cap b{font-weight:500;font-size:15px;letter-spacing:-.01em}
.frame__cap span{font-size:13px;line-height:1.45;color:var(--text-dark);max-width:520px}

/* 01 · Les 4 paliers, même caméra */
.tiers-stage{margin:0 0 12px;border:1px solid var(--line-dark);background:var(--night-2)}
.tiers-stage__view{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--night-3)}
.tiers-stage__img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:0;transform:scale(1.025);transition:opacity 1s ease,transform 6s ease-out}
.tiers-stage__img.is-on{opacity:1;transform:scale(1)}
.tiers-nav{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line-dark)}
.tier-btn{position:relative;text-align:left;background:transparent;border:0;border-right:1px solid var(--line-dark);color:var(--muted-dark);padding:14px 16px 16px;cursor:pointer;display:flex;flex-direction:column;gap:3px;transition:background .25s,color .25s}
.tier-btn:last-child{border-right:0}
.tier-btn b{font-weight:500;font-size:16px;letter-spacing:-.01em;color:var(--bone)}
.tier-btn>span:not(.mono){font-size:13px}
.tier-btn:hover{background:rgba(244,242,238,.05)}
.tier-btn.is-on{background:var(--bone);color:var(--muted-light)}
.tier-btn.is-on b{color:var(--ink)}
.tier-btn.is-on .tier__last{color:var(--red-dark)!important}
.tier-btn__bar{position:absolute;left:0;top:-1px;height:2px;width:0;background:var(--red)}
.tier-btn.is-on .tier-btn__bar{width:100%}
.tiers-stage.is-auto .tier-btn.is-on .tier-btn__bar{animation:tierBar var(--tier-ms,4000ms) linear both}
@keyframes tierBar{from{width:0}to{width:100%}}
.split--grow .frame{aspect-ratio:auto;min-height:220px}
.split--grow .frame video{position:absolute;inset:0}

/* 02 · Défendre : comparateur + côté */
.defense-grid{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(0,1fr);gap:12px;margin-top:12px;align-items:start}
.defense-side{display:flex;flex-direction:column;gap:12px}
.frame--small{aspect-ratio:16/9}
.compare{margin:0;border:1px solid var(--line-dark);background:var(--night-3)}
.compare__view{--pos:50%;position:relative;aspect-ratio:16/9;overflow:hidden;cursor:ew-resize;touch-action:pan-y;user-select:none;-webkit-user-select:none}
.compare__img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;pointer-events:none}
.compare__img--top{clip-path:inset(0 calc(100% - var(--pos)) 0 0)}
.compare__line{position:absolute;top:0;bottom:0;left:var(--pos);width:2px;margin-left:-1px;background:var(--bone);box-shadow:0 0 12px rgba(0,0,0,.4);pointer-events:none}
.compare__knob{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:46px;height:46px;border-radius:50%;background:var(--bone);color:var(--ink);display:flex;align-items:center;justify-content:center;font-family:var(--mono);font-size:11px;letter-spacing:-.05em;box-shadow:0 6px 20px rgba(0,0,0,.4)}
.compare__lbl{position:absolute;top:12px;background:rgba(14,14,14,.75);padding:5px 8px;font-size:10px;pointer-events:none}
.compare__lbl--l{left:12px}
.compare__lbl--r{right:12px;color:#FF8A7E}
.compare__range{display:block;width:calc(100% - 28px);margin:10px 14px 0;accent-color:var(--red);min-height:28px}
.compare .frame__cap{position:static;background:none;padding:6px 16px 16px;pointer-events:auto}
.compare.is-hinting .compare__view{animation:none}

/* 02 · Ennemis */
.foes-head{display:flex;flex-wrap:wrap;gap:16px 48px;align-items:flex-end;justify-content:space-between;padding:80px 0 28px}
.foes{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}
.foe{margin:0;padding:0;border:1px solid var(--line-dark);background:var(--night-3);color:var(--bone);display:flex;flex-direction:column;text-align:left;font:inherit}
.foe__art{display:block;aspect-ratio:4/3;overflow:hidden;background:var(--night)}
.foe__art img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease)}
.foe:hover .foe__art img{transform:scale(1.04)}
.foe>.mono,.foe__front>.mono{display:block;padding:14px 16px 0;color:var(--muted-dark)}
.foe h4,.foe__name{display:block;margin:4px 0 0;padding:0 16px;font-weight:500;font-size:19px;letter-spacing:-.015em}
.foe p,.foe__txt{display:block;margin:6px 0 0;padding:0 16px 18px;font-size:14px;line-height:1.5;color:var(--text-dark)}
.foe--flip{cursor:pointer;perspective:1400px;border-color:rgba(218,41,28,.45);background:transparent}
.foe--flip .foe__front>.mono:first-of-type{color:#FF8A7E}
.foe__inner{position:relative;display:block;flex:1;transform-style:preserve-3d;transition:transform .7s cubic-bezier(.6,0,.2,1)}
.foe__front{display:flex;flex-direction:column;height:100%;background:var(--night-3);backface-visibility:hidden;-webkit-backface-visibility:hidden}
.foe__back{position:absolute;inset:0;transform:rotateY(180deg);backface-visibility:hidden;-webkit-backface-visibility:hidden;background:#0B0A0E;display:flex;align-items:center;justify-content:center;padding:10px}
.foe__back img{max-width:100%;max-height:100%;width:auto;height:auto;object-fit:contain;box-shadow:0 10px 30px rgba(0,0,0,.5)}
.foe--flip.is-flipped .foe__inner{transform:rotateY(180deg)}
.foe__flip{margin-top:auto;padding:0 16px 14px!important;color:var(--bone)!important;opacity:.75;transition:opacity .2s}
.foe--flip:hover .foe__flip{opacity:1}

/* 03 · Stratégie */
.strat{border:1px solid var(--line-dark)}
.strat__tabs{display:flex;border-bottom:1px solid var(--line-dark)}
.strat-tab{flex:1 1 0;display:flex;align-items:center;gap:12px;padding:16px 18px;min-height:52px;border:0;border-right:1px solid var(--line-dark);background:transparent;color:var(--bone);font-weight:500;font-size:16px;letter-spacing:-.01em;cursor:pointer;text-align:left;transition:background .2s,color .2s}
.strat-tab:last-child{border-right:0}
.strat-tab .mono{color:var(--muted-dark)}
.strat-tab:hover{background:rgba(244,242,238,.05)}
.strat-tab.is-on{background:var(--bone);color:var(--ink)}
.strat-tab.is-on .mono{color:var(--red)}
.strat__panel{display:grid;grid-template-columns:minmax(0,2fr) minmax(0,1fr);gap:12px;padding:12px;animation:panelIn .5s var(--ease) both}
@keyframes panelIn{from{opacity:0;transform:translateY(8px)}}
.strat__shot{position:relative;margin:0;border:1px solid var(--line-dark);background:var(--night-3)}
.strat__shot img{width:100%;height:auto}
.strat__specs{display:flex;flex-direction:column;gap:0;border:1px solid var(--line-dark);background:var(--night-2);align-self:start}
.strat__specs img{width:100%;height:auto}
.strat__names{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line-dark)}
.strat__names li{padding:10px 6px;text-align:center;color:var(--text-dark);font-size:10px;border-right:1px solid var(--line-dark)}
.strat__names li:last-child{border-right:0}
.strat__bonus{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:12px;align-self:start}
.strat__bonus li{display:flex;flex-direction:column;gap:3px;padding:16px;border:1px solid var(--line-dark);background:var(--night-2)}
.strat__bonus .mono{color:#FF8A7E}
.strat__bonus b{font-weight:500;font-size:17px;letter-spacing:-.01em}
.strat__bonus span:last-child{font-size:14px;line-height:1.5;color:var(--text-dark)}

@media (max-width:900px){
  .defense-grid{grid-template-columns:1fr}
  .defense-side{display:grid;grid-template-columns:1fr 1fr}
  .foes{grid-template-columns:repeat(2,minmax(0,1fr))}
  .strat__panel{grid-template-columns:1fr}
}
@media (max-width:760px){
  .hero__note{right:12px;top:64px;font-size:9px}
  .split--grow .frame{aspect-ratio:16/10}
  .tiers-nav{grid-template-columns:1fr 1fr}
  .tier-btn{padding:12px 12px 14px;border-bottom:1px solid var(--line-dark)}
  .tier-btn:nth-child(2n){border-right:0}
  .tier-btn:nth-child(n+3){border-bottom:0}
  .tier-btn b{font-size:15px}
  .tier-btn>span:not(.mono){font-size:12px}
  .tier-btn__bar{top:auto;bottom:-1px}
  .frame__cap{padding:28px 12px 10px}
  .frame__cap span{font-size:12px}
  .defense-side{grid-template-columns:1fr}
  .compare__knob{width:40px;height:40px}
  .foes-head{padding-top:56px}
  .foes{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;gap:10px;margin:0 -20px;padding:0 20px 8px;scrollbar-width:none}
  .foes::-webkit-scrollbar{display:none}
  .foe{flex:0 0 74vw;scroll-snap-align:center}
  .strat-tab{flex-direction:column;align-items:flex-start;gap:2px;padding:12px;font-size:14px}
  .strat__panel{padding:8px;gap:8px}
  .strat__names li{font-size:9px;letter-spacing:.03em}
  .strat__shot picture img{max-height:76svh;width:auto;max-width:100%;margin:0 auto}
}