/* Layout: a film in three takes. 1967 photo as the opening shot, a pinned 2015 panel that turns into 2026 as you scroll,
   then three real machines retrofitted, then the visual language. Dark by choice: the new screens glow like the real thing. */
:root{
  --bg:#0A0D0F;
  --surface:#11161A;
  --raised:#161D21;
  --ink:#EDF2F4;
  --muted:#8E9BA3;
  --line:rgba(255,255,255,.08);
  --accent:#8B6CFF;           /* OctyVIBE violet */
  --display:"Archivo","Arial Narrow",Arial,sans-serif;
  --body:"Inter",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:"JetBrains Mono",ui-monospace,Consolas,monospace;
  --r-s:8px; --r-m:12px; --r-l:20px;
  --gl:max(16px, env(safe-area-inset-left, 0px));
  --gr:max(16px, env(safe-area-inset-right, 0px));
  color-scheme:dark;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--ink);font-family:var(--body);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased}
.wrap{max-width:1200px;margin:0 auto;padding-left:var(--gl);padding-right:var(--gr)}
a{color:var(--accent)}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}
h1,h2,h3{font-family:var(--display);margin:0;text-wrap:balance}
p{margin:0}
.label{font-family:var(--mono);font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.num{font-variant-numeric:tabular-nums}

/* ── Hero : 1967 ───────────────────────── */
.hero{position:relative;isolation:isolate;overflow:hidden;border-bottom:1px solid var(--line)}
.hero img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:60% 30%;z-index:-2;filter:grayscale(1) contrast(1.05)}
.hero::after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(90deg,rgba(10,13,15,.96) 0%,rgba(10,13,15,.82) 45%,rgba(10,13,15,.35) 100%),linear-gradient(0deg,var(--bg) 0%,transparent 35%)}
.hero .wrap{padding-block:28px clamp(72px,12vh,140px)}
.brand{display:flex;align-items:center;gap:12px;margin-bottom:clamp(64px,14vh,150px)}
.brand b{font-family:var(--display);font-stretch:125%;font-weight:850;font-size:18px;letter-spacing:-.01em}
.brand span{font-size:13px;color:var(--muted)}
.brand i{width:28px;height:28px;border-radius:8px;background:var(--accent);display:grid;place-items:center;color:#fff}
/* Early, quiet way out for the reader who is already convinced (the full CTA stays at the end) */
.brand .top-cta{margin-left:auto;display:inline-flex;align-items:center;min-height:44px;padding:0 16px;border-radius:999px;border:1px solid rgba(139,108,255,.55);background:rgba(10,13,15,.55);backdrop-filter:blur(6px);color:var(--ink);font:600 14px var(--body);text-decoration:none;transition:background-color .15s ease,border-color .15s ease}
.brand .top-cta:hover{background:var(--accent);border-color:var(--accent)}
.brand .top-cta:active{transform:scale(.97)}
@media (max-width:560px){.brand span{display:none}.brand .top-cta{padding:0 14px;font-size:13px}}
.hero h1{font-stretch:112%;font-weight:800;font-size:clamp(40px,6.6vw,92px);line-height:.98;letter-spacing:-.025em;max-width:13ch}
.hero h1 span{color:var(--accent)}
.hero .lede{margin-top:28px;max-width:46ch;font-size:clamp(17px,1.6vw,20px);color:#C7D0D5}
.hero .credit{position:absolute;right:var(--gr);bottom:20px;font-family:var(--mono);font-size:11px;color:var(--muted);text-align:right}
.cue{display:inline-flex;align-items:center;gap:10px;margin-top:40px;font-size:14px;color:var(--muted);text-decoration:none}
.cue svg{animation:bob 1.8s ease-in-out infinite}
@keyframes bob{50%{transform:translateY(4px)}}

/* ── Reveal : 2015 → 2026 ─────────────── */
.reveal{position:relative;height:280vh}
.reveal .pin{position:sticky;top:0;height:100svh;display:grid;align-items:center}
.reveal .grid{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,7fr);gap:clamp(24px,4vw,64px);align-items:center}
.years{position:relative;min-height:330px}
.yr{position:absolute;inset:0;transition:opacity .35s ease,transform .35s ease}
.yr .y{font-family:var(--display);font-stretch:125%;font-weight:850;font-size:clamp(64px,9vw,128px);line-height:.9;letter-spacing:-.04em}
.yr .y.is-new{color:var(--accent)}
.yr h2{font-stretch:100%;font-weight:700;font-size:clamp(20px,2.2vw,26px);line-height:1.2;margin-top:20px}
.yr p{color:var(--muted);margin-top:12px;max-width:40ch}
.yr code{font-family:var(--mono);font-size:.85em;color:#C7D0D5;background:var(--raised);padding:1px 6px;border-radius:6px}
.yr.new{opacity:0;transform:translateY(12px)}
.reveal[data-state="new"] .yr.old{opacity:0;transform:translateY(-12px)}
.reveal[data-state="new"] .yr.new{opacity:1;transform:none}
.progress{display:flex;gap:6px;margin-top:20px;align-items:center;font-family:var(--mono);font-size:12px;color:var(--muted)}
.progress span{display:block;width:120px;height:4px;border-radius:999px;background:var(--line);overflow:hidden}
.progress span::after{content:"";display:block;height:100%;width:calc(var(--p,0)*100%);background:var(--accent);border-radius:inherit}

.photo{position:relative;--pos:100%;max-height:82svh;aspect-ratio:1920/1583;max-width:100%;margin-inline:auto;border-radius:var(--r-l);overflow:hidden;box-shadow:0 40px 80px -30px rgba(0,0,0,.8)}
.photo > img{display:block;width:100%;height:100%;object-fit:cover}
.screen{position:absolute;left:15.42%;top:17.88%;width:69.48%;height:63.17%;clip-path:inset(0 0 0 var(--pos));overflow:hidden;container-type:inline-size}
.screen svg{display:block;width:100%;height:100%}
.screen::after{content:"";position:absolute;inset:0;background:linear-gradient(118deg,rgba(255,255,255,.10) 0%,rgba(255,255,255,.03) 34%,transparent 35%);pointer-events:none}
.screen-edge{position:absolute;top:17.88%;height:63.17%;left:calc(15.42% + 69.48% * var(--pn,1));width:2px;margin-left:-1px;background:var(--accent);box-shadow:0 0 18px 2px rgba(139,108,255,.8);pointer-events:none;opacity:var(--edge,1)}
@media (max-width:860px){
  .reveal{height:240vh}
  .reveal .grid{grid-template-columns:1fr;gap:16px}
  .years{min-height:200px}
  .yr .y{font-size:56px}.yr h2{font-size:18px;margin-top:10px}.yr p{font-size:14px;margin-top:6px}
  .photo{max-height:58svh}
}

/* ── Cases ─────────────────────────────── */
.chapter{padding-block:clamp(72px,10vw,128px) 24px}
.chapter h2{font-stretch:112%;font-weight:800;font-size:clamp(32px,4.6vw,60px);line-height:1;letter-spacing:-.02em;max-width:16ch}
.chapter > .wrap > p{color:var(--muted);max-width:56ch;margin-top:18px;font-size:18px}
.case{padding-block:clamp(48px,7vw,88px);border-top:1px solid var(--line)}
.case:first-of-type{border-top:0}
.case-head{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,6fr);gap:16px 48px;align-items:end;margin-bottom:32px}
.case-head .tag{display:flex;gap:10px;align-items:center;margin-bottom:12px}
.case-head .tag b{font-family:var(--mono);font-weight:600;font-size:12px;color:var(--accent)}
.case-head h3{font-stretch:105%;font-weight:750;font-size:clamp(26px,3vw,38px);line-height:1.08;letter-spacing:-.015em}
.case-head p{color:var(--muted);max-width:58ch}
@media (max-width:860px){.case-head{grid-template-columns:1fr}}

.device{background:#1B2226;border-radius:28px;padding:14px;box-shadow:inset 0 1px 0 rgba(255,255,255,.08),0 30px 60px -30px rgba(0,0,0,.9)}
.device > *{border-radius:16px;overflow:hidden;display:block}
.device svg{display:block;width:100%;height:auto}

.compare{position:relative;--pos:50%;border-radius:16px;overflow:hidden;aspect-ratio:5/4;touch-action:pan-y}
.compare > img,.compare > .after,.compare > .after svg{position:absolute;inset:0;width:100%;height:100%;display:block}
.compare > img{object-fit:cover}
.compare > .after{clip-path:inset(0 0 0 var(--pos))}
.compare .bar{position:absolute;top:0;bottom:0;left:var(--pos);width:2px;margin-left:-1px;background:var(--accent);box-shadow:0 0 16px 2px rgba(139,108,255,.7);pointer-events:none}
.compare .knob{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:40px;height:40px;border-radius:999px;background:var(--accent);color:#fff;display:grid;place-items:center;box-shadow:0 8px 24px rgba(0,0,0,.45)}
.compare input{position:absolute;inset:0;width:100%;height:100%;margin:0;opacity:0;cursor:ew-resize;-webkit-appearance:none;appearance:none}
.compare:has(input:focus-visible){outline:2px solid var(--accent);outline-offset:4px}
/* "Avant" lives on the old capture and is wiped with it; "Après" sits on the device edge, off the new screen */
.compare .before-ui{position:absolute;inset:0;clip-path:inset(0 calc(100% - var(--pos)) 0 0);pointer-events:none}
.before-ui .chip{position:absolute;top:14px;left:14px}
@media (max-width:560px){
  .chip .long{display:none}
  .before-ui .chip{top:10px;left:10px}
  .compare .knob{width:32px;height:32px}
  .compare .knob svg{width:15px;height:15px}
}
.chip{font-family:var(--mono);font-size:11px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;padding:6px 10px;border-radius:999px;background:rgba(10,13,15,.75);color:var(--ink);backdrop-filter:blur(6px)}
.chip.new{background:var(--accent);color:#fff}

.duo{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:24px;align-items:center}
.duo figure{margin:0;position:relative;border-radius:var(--r-l);overflow:hidden}
.duo figure img{display:block;width:100%;height:100%;object-fit:cover;aspect-ratio:4/5}
.duo figure .chip{position:absolute;top:14px;left:14px}
.device{position:relative}
.screen3d{position:relative;container-type:inline-size}
.view3d{position:absolute;cursor:grab;touch-action:pan-y;user-select:none}
.view3d.static{cursor:default;pointer-events:none}
.compare > .after{container-type:inline-size}
.view3d:active{cursor:grabbing}
.view3d canvas{display:block;width:100%;height:100%}
.tip{position:absolute;left:0;top:0;transform:translate(-50%,-130%);display:flex;align-items:center;gap:.6cqw;padding:.55cqw .9cqw;border-radius:999px;background:rgba(14,19,22,.88);border:1px solid rgba(251,146,60,.45);color:#FED7AA;font:600 1.4cqw/1 var(--mono);white-space:nowrap;pointer-events:none;will-change:transform}
.tip i{width:.75cqw;height:.75cqw;border-radius:999px;background:#FB923C;box-shadow:0 0 .8cqw #FB923C}
.tip.water{border-color:rgba(92,200,255,.5);color:#CDEFFF}.tip.water i{background:#5CC8FF;box-shadow:0 0 .8cqw #5CC8FF}
.tip.warn{border-color:rgba(251,191,36,.6);color:#FDE68A}.tip.warn i{background:#FBBF24;box-shadow:0 0 .8cqw #FBBF24}
.tip.info{border-color:rgba(255,255,255,.14);color:#C9D2D8}.tip.info i{background:#8A97A0;box-shadow:none}
.tip.water::after{background:linear-gradient(rgba(92,200,255,.6),transparent)}.tip.warn::after{background:linear-gradient(rgba(251,191,36,.6),transparent)}.tip.info::after{background:linear-gradient(rgba(255,255,255,.25),transparent)}
.tip::after{content:"";position:absolute;left:50%;top:100%;width:1px;height:1.6cqw;background:linear-gradient(rgba(251,146,60,.6),transparent)}
.device > .chip{position:absolute;top:-12px;right:24px;z-index:1}
@media (max-width:860px){.duo{grid-template-columns:1fr}.duo figure img{aspect-ratio:3/2}}

.gains{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:28px}
.gain{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-l);padding:20px}
.gain b{display:block;font-weight:600;margin-bottom:6px}
.gain p{color:var(--muted);font-size:15px}
.gain svg{width:24px;height:24px;color:var(--accent);margin-bottom:14px;display:block}
@media (max-width:860px){.gains{grid-template-columns:1fr}}

/* Phone: "real size" overlay for the screens */
.zoom-btn{display:none;align-items:center;justify-content:center;gap:8px;width:100%;min-height:48px;margin-top:12px;border-radius:var(--r-m);border:1px solid var(--line);background:var(--surface);color:var(--ink);font:600 14px var(--body);cursor:pointer;transition:background-color .15s ease}
.zoom-btn:hover{background:var(--raised)}
.zoom-btn:active{transform:scale(.98)}
.zoom-btn svg{color:var(--accent)}
@media (max-width:720px){.zoom-btn{display:flex}}
.zoom{position:fixed;inset:0;z-index:50;background:rgba(6,8,10,.97);display:flex;flex-direction:column}
.zoom[hidden]{display:none}
.zoom-bar{display:flex;align-items:center;gap:12px;padding:10px var(--gr) 10px var(--gl);border-bottom:1px solid var(--line)}
.zoom-bar p{flex:1;font-size:13px;color:var(--muted)}
.zoom-close{width:44px;height:44px;flex:none;border-radius:999px;border:0;background:var(--raised);color:var(--ink);display:grid;place-items:center;cursor:pointer}
.zoom-body{flex:1;overflow:auto;overscroll-behavior:contain;display:flex;padding:16px}
.zoom-body > *{flex:none;width:820px;margin-block:auto;border-radius:16px;overflow:hidden}
.zoom-body .compare{--pos:0% !important}
.zoom-body .compare .bar,.zoom-body .compare input,.zoom-body .before-ui{display:none}
.zoom-body .view3d{touch-action:auto}

/* ── Language ──────────────────────────── */
.lang{padding-block:clamp(72px,10vw,128px);border-top:1px solid var(--line)}
.lang-grid{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:16px;margin-top:40px}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-l);padding:24px;min-width:0}
.panel h3{font-family:var(--body);font-size:16px;font-weight:600;margin-bottom:4px}
.panel > p{color:var(--muted);font-size:14px;margin-bottom:20px;max-width:52ch}
.span-7{grid-column:span 7}.span-5{grid-column:span 5}.span-12{grid-column:span 12}
@media (max-width:960px){.span-7,.span-5{grid-column:span 12}}

.fluids{display:grid;gap:6px}
.fluid{display:grid;grid-template-columns:150px minmax(0,1fr);gap:16px;align-items:center;padding:10px 12px;border-radius:var(--r-m)}
.fluid:hover{background:var(--raised)}
.fluid .n{display:flex;gap:10px;align-items:center;font-size:14px;font-weight:500}
.fluid .n i{width:10px;height:10px;border-radius:999px;flex:none}
.fluid .n small{display:block;font-size:12px;color:var(--muted);font-weight:400}
.fluid svg{width:100%;height:24px;display:block}
@media (max-width:560px){.fluid{grid-template-columns:1fr;gap:6px}}

.swatches{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px 10px}
.sw{display:grid;grid-template-columns:auto 1fr;gap:10px;align-items:center;font-size:14px}
.sw i{width:32px;height:32px;border-radius:10px;display:grid;place-items:center}
.sw small{display:block;color:var(--muted);font-size:12px;line-height:1.35}

.icons{display:grid;grid-template-columns:repeat(auto-fill,minmax(104px,1fr));gap:4px}
.icon{display:grid;justify-items:center;gap:10px;padding:18px 6px 14px;border-radius:var(--r-m);font-size:12px;color:var(--muted);text-align:center;line-height:1.3;transition:background-color .15s ease,color .15s ease}
.icon:hover{background:var(--raised);color:var(--ink)}
.icon svg{width:28px;height:28px;color:var(--ink)}
@media (max-width:560px){.icons{grid-template-columns:repeat(4,minmax(0,1fr))}.icon{padding:14px 2px 12px;font-size:11px;gap:8px}}
@media (max-width:420px){.icons{grid-template-columns:repeat(3,minmax(0,1fr))}}

.states{display:grid;grid-template-columns:repeat(auto-fill,minmax(170px,1fr));gap:10px}
.st{display:grid;grid-template-columns:48px 1fr;gap:12px;align-items:center;background:var(--raised);border:1px solid var(--line);border-radius:var(--r-l);padding:8px 14px 8px 8px}
.st .ib{width:48px;height:48px;border-radius:var(--r-m);display:grid;place-items:center;position:relative}
.st .ib svg{width:24px;height:24px}
.st b{display:block;font-size:14px;font-weight:600}
.st small{font-size:12px;color:var(--muted)}
.st .badge{position:absolute;right:-5px;top:-5px;width:20px;height:20px;border-radius:999px;display:grid;place-items:center;font:700 11px var(--body);border:2px solid var(--raised)}
.st .badge svg{width:11px;height:11px}

/* ── CTA ───────────────────────────────── */
.cta{padding-block:clamp(72px,10vw,128px) 40px;border-top:1px solid var(--line)}
.cta .wrap{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:32px 64px;align-items:end}
.cta h2{font-stretch:112%;font-weight:800;font-size:clamp(32px,4.6vw,60px);line-height:1;letter-spacing:-.02em}
.cta p{color:var(--muted);margin-top:16px;max-width:50ch}
.btn{display:inline-flex;align-items:center;gap:10px;background:var(--accent);color:#fff;text-decoration:none;font-weight:600;padding:16px 22px;border-radius:var(--r-m);min-height:52px;transition:background-color .15s ease,transform .1s ease}
.btn:hover{background:#7A58F5}
.btn:active{transform:scale(.97)}
.credits{margin-top:72px;padding-top:24px;border-top:1px solid var(--line);font-size:12px;color:var(--muted);display:grid;gap:4px}
.credits a{color:var(--muted)}
@media (max-width:860px){.cta .wrap{grid-template-columns:1fr}}

/* ── Fluid animations (shared by screens and legend) ── */
.f-liq{stroke:rgba(255,255,255,.75);stroke-width:2.5;stroke-linecap:round;stroke-dasharray:12 36;animation:fl48 1.6s linear infinite}
.f-gas{stroke-width:4;stroke-linecap:round;stroke-dasharray:0 11;animation:fl11 .55s linear infinite}
.f-steam{stroke:#fff;stroke-width:9;stroke-linecap:round;stroke-dasharray:14 22;opacity:.85;filter:url(#blur2);animation:fl36 2.2s linear infinite}
.f-air{stroke-width:1.5;stroke-linecap:round;stroke-dasharray:8 22;animation:fl30 .45s linear infinite}
.f-oil{stroke-width:4;stroke-linecap:round;stroke-dasharray:28 12;opacity:.9;animation:fl40 3.2s linear infinite}
@keyframes fl48{to{stroke-dashoffset:-48}}
@keyframes fl11{to{stroke-dashoffset:-11}}
@keyframes fl36{to{stroke-dashoffset:-36}}
@keyframes fl30{to{stroke-dashoffset:-30}}
@keyframes fl40{to{stroke-dashoffset:-40}}
.wave{animation:wave 3s linear infinite}
@keyframes wave{to{transform:translateX(70px)}}
.pulse{animation:pulse 1.6s ease-in-out infinite;transform-box:fill-box;transform-origin:center}
@keyframes pulse{50%{opacity:.35}}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .f-liq,.f-gas,.f-steam,.f-air,.f-oil,.wave,.pulse,.cue svg{animation:none}
}