:root{--bg:#070b12;--panel:#0b1420;--line:#1c2c3b;--cy:#5fd3e0;--gold:#e8c36a;--tx:#d3e2ec;--dim:#8aa3b5;--bas:#e0873a;--dans:#4a9eff;--apres:#4fd18b;--haut:#ff5a4e}
*{box-sizing:border-box}
:root{padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px)}
html{scroll-behavior:smooth;scroll-padding-top:calc(64px + env(safe-area-inset-top,0px))}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--bg) radial-gradient(ellipse 80% 50% at 50% 0%,#10233a 0%,transparent 70%) no-repeat;color:var(--tx);font:300 17px/1.6 'Exo 2',system-ui,sans-serif}
a{color:var(--cy)}
:focus-visible{outline:2px solid var(--gold);outline-offset:3px}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
svg{fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.top{position:sticky;top:env(safe-area-inset-top,0px);z-index:10;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:12px clamp(16px,4vw,40px);background:rgba(7,11,18,.86);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:10px;font-family:Orbitron,sans-serif;font-weight:700;letter-spacing:.06em;color:#eaf6fb;text-decoration:none;font-size:15px}
.top nav{display:flex;gap:clamp(10px,2.4vw,26px);align-items:center;font-size:15px}
.top nav a{color:var(--dim);text-decoration:none}.top nav a:hover{color:var(--tx)}
.top nav a.dl{color:var(--bg);background:var(--cy);padding:6px 14px;border-radius:999px;font-weight:600}
@media (max-width:640px){.top nav a:not(.dl){display:none}}
main{max-width:1180px;margin:0 auto;padding:0 clamp(16px,4vw,40px)}
.reader{padding:clamp(20px,4vh,40px) 0 20px}
.intro{text-align:center;margin-bottom:18px}
h1{font-family:Orbitron,sans-serif;font-weight:800;font-size:clamp(28px,5vw,52px);line-height:1.1;letter-spacing:.02em;margin:0;color:#eaf6fb;text-shadow:0 0 30px rgba(95,211,224,.35)}
.intro p{color:var(--dim);margin:10px auto 0;max-width:52ch}
.stage{position:relative;display:flex;align-items:center;justify-content:center;gap:12px}
.frame{position:relative;width:min(62vh,100%);aspect-ratio:1;border-radius:6px;overflow:hidden;box-shadow:0 0 0 1px var(--line),0 30px 80px -20px rgba(95,211,224,.25);background:var(--panel)}
.pg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:0;transition:opacity .7s ease}
.pg.on{opacity:1}
@media (prefers-reduced-motion:reduce){.pg{transition:none}}
.nav{flex:none;width:48px;height:48px;border-radius:50%;border:1px solid var(--line);color:var(--cy);display:grid;place-items:center;background:var(--panel)}
.nav:hover{border-color:var(--cy)}.nav svg{width:22px;height:22px}
@media (max-width:760px){.nav{position:absolute;z-index:2;top:50%;transform:translateY(-50%);background:rgba(11,20,32,.8)}.prev{left:6px}.next{right:6px}}
.ctrl{display:flex;align-items:center;gap:16px;max-width:min(62vh,100%);margin:16px auto 10px}
.play{width:44px;height:44px;border-radius:50%;background:var(--cy);color:var(--bg);display:grid;place-items:center;flex:none}
.play svg{width:18px;height:18px;stroke-width:3}.play .i-play{fill:currentColor;stroke-width:0}
.play .i-play,.paused .play .i-pause{display:none}.paused .play .i-play{display:block}
.where{flex:1;min-width:0;display:flex;flex-direction:column;line-height:1.3}
#sec{color:#eaf6fb;font-weight:400;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
#num{font-family:Orbitron,sans-serif;font-size:12px;color:var(--cy);letter-spacing:.08em}
.speed{font-size:14px;color:var(--dim);display:flex;align-items:center;gap:8px}
.speed select{background:var(--panel);color:var(--tx);border:1px solid var(--line);border-radius:6px;padding:4px 6px;font:inherit}
.fsb{width:40px;height:40px;border:1px solid var(--line);border-radius:8px;color:var(--dim);display:grid;place-items:center}.fsb svg{width:18px;height:18px}
@media (max-width:520px){.speed{display:none}}
.track{display:flex;gap:2px;max-width:min(62vh,100%);margin:0 auto;height:26px;align-items:stretch}
.seg{position:relative;flex-basis:0;min-width:3px;border-radius:2px;background:#15263a;padding:0;overflow:hidden}
.seg.ch{background:#173247}.seg.it{background:#3a321b}
.seg i{position:absolute;left:0;top:0;bottom:0;background:var(--cy);width:0}
.seg.it i{background:var(--gold)}
.seg.cur{outline:1px solid var(--cy)}
.seg:hover{filter:brightness(1.4)}
.hint{text-align:center;font-size:13px;color:var(--dim);margin:12px 0 0}
@media (hover:none){.hint{display:none}}
.stage:fullscreen{background:var(--bg)}
.stage:fullscreen .frame{width:min(96vh,100vw - 140px)}
h2{font-family:Orbitron,sans-serif;font-weight:700;font-size:clamp(22px,3vw,30px);letter-spacing:.03em;color:#eaf6fb;margin:0 0 8px}
.pdf,.figs{padding:clamp(48px,9vh,90px) 0 0}
.pdf>p,.figs>p{color:var(--dim);max-width:62ch;margin:0 0 22px}
.pdfbox{height:min(86vh,980px);border-radius:6px;overflow:hidden;border:1px solid var(--line);background:var(--panel);margin-bottom:18px}
.pdfbox object{width:100%;height:100%;display:block}
.nopdf{height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;text-align:center;padding:20px}
.btn{display:inline-block;background:var(--gold);color:var(--bg);text-decoration:none;font-weight:600;padding:10px 22px;border-radius:999px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,300px),1fr));gap:22px}
.grid figure{margin:0;background:var(--panel);border:1px solid var(--line);border-radius:6px;padding:16px}
.grid img{width:100%;height:auto;aspect-ratio:1;object-fit:contain;display:block}
.grid figcaption{display:flex;flex-direction:column;margin-top:10px;line-height:1.35}
.grid figcaption strong{font-weight:600;color:#eaf6fb}.grid figcaption span{font-size:14px;color:var(--dim)}
.foot{max-width:1180px;margin:90px auto 0;padding:28px clamp(16px,4vw,40px) 40px;border-top:1px solid var(--line);font-size:14px;color:var(--dim)}
.foot p{margin:4px 0}
@media (max-width:640px){.top nav a.dl .lg{display:none}}