:root{
  --ink-rgb:237,234,228;
  --earth-rgb:227,178,107;
  --bg:#040405;
  --ink:rgb(var(--ink-rgb));
  --earth:rgb(var(--earth-rgb));
  --mono:'IBM Plex Mono', ui-monospace, Menlo, monospace;
  --serif:'Newsreader', Georgia, 'Times New Roman', serif;
}
*{box-sizing:border-box}
html,body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--mono)}
body.locked{overflow:hidden;height:100%}
#gl{position:fixed;inset:0;width:100%;height:100%;display:block;z-index:0;touch-action:pan-y}
/* pan-y: no telemóvel o dedo na vertical faz scroll; na horizontal continua a rodar Gargantua e a passar pelas linhas */
#track{height:0}
body.scrolling #track{height:var(--track, 3960vh)}   /* --track vem do ritmo do scroll (PACE em main.js) */

.grain{position:fixed;inset:-50%;z-index:3;pointer-events:none;opacity:.05;mix-blend-mode:soft-light;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='220' height='220'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
  animation:grain .5s steps(3) infinite}
@keyframes grain{0%{transform:translate(0,0)}33%{transform:translate(-3%,2%)}66%{transform:translate(2%,-3%)}100%{transform:translate(0,0)}}
.vignette{position:fixed;inset:0;z-index:2;pointer-events:none;background:radial-gradient(ellipse 85% 75% at 50% 50%,rgba(4,4,5,0) 55%,rgba(2,2,3,.75) 100%)}

#stage{position:fixed;inset:0;z-index:4;pointer-events:none}
#stage button{pointer-events:auto}

.top{position:absolute;left:56px;right:56px;top:44px;display:flex;justify-content:space-between;align-items:center;
  font-size:11px;letter-spacing:.24em;text-transform:uppercase}
.brand{color:rgba(var(--ink-rgb),.7)}
.date{color:rgba(var(--ink-rgb),.45);text-transform:none;letter-spacing:.12em}

.clock-wrap{position:absolute;left:0;right:0;top:20vh;text-align:center}
.big-clock{display:inline-block;font-weight:200;font-size:clamp(64px,min(13.6vw,19vh),196px);line-height:1;letter-spacing:-.04em;
  font-variant-numeric:tabular-nums;transform-origin:0 0;will-change:transform;white-space:nowrap}
.big-clock .ss{color:rgba(var(--ink-rgb),.38)}
.caption{margin:22px 0 0;font-size:11px;letter-spacing:.3em;text-transform:uppercase;color:rgba(var(--ink-rgb),.42)}

.hold{position:absolute;left:50%;top:calc(100vh - 148px - 84px);transform:translateX(-50%);text-align:center}
#hold{position:relative;width:84px;height:84px;border-radius:50%;border:0;background:transparent;cursor:pointer;padding:0;
  -webkit-tap-highlight-color:transparent;touch-action:none;user-select:none;-webkit-user-select:none}
#hold:focus-visible{outline:1px solid rgba(var(--ink-rgb),.5);outline-offset:8px}
#hold svg{position:absolute;inset:0;width:100%;height:100%;transform:rotate(-90deg)}
.ring-bg{fill:none;stroke:rgba(var(--ink-rgb),.22);stroke-width:1}
.ring{fill:none;stroke:var(--ink);stroke-width:1.4;stroke-dasharray:301.6;stroke-dashoffset:301.6}
#hold .dot{position:absolute;left:50%;top:50%;width:6px;height:6px;margin:-3px 0 0 -3px;border-radius:50%;background:var(--ink);
  box-shadow:0 0 14px rgba(var(--ink-rgb),.6);transition:transform .6s ease}
#hold.pressing .dot{transform:scale(.6)}
.hint{margin:22px 0 0;font-size:11px;letter-spacing:.3em;text-transform:uppercase;color:rgba(var(--ink-rgb),.5);white-space:nowrap;transition:opacity .4s}

.entry-only{transition:opacity 1.2s ease}
body.launched .entry-only{opacity:0}
body.launched .clock-wrap{opacity:1}
body.launched .caption{opacity:0;transition:opacity .8s}

.hud{position:absolute;top:40px;display:flex;flex-direction:column;gap:6px;font-variant-numeric:tabular-nums;opacity:0}
.hud .lbl{font-size:10px;letter-spacing:.3em;text-transform:uppercase;color:rgba(var(--ink-rgb),.45)}
.hud .t{font-size:20px;font-weight:300;letter-spacing:.02em}
.hud .sub{font-size:11px;letter-spacing:.14em;color:rgba(var(--ink-rgb),.55)}
.hud .rate{font-size:10px;letter-spacing:.14em;color:rgba(var(--ink-rgb),.32);margin-top:4px}
.hud-you{left:56px}
.hud-earth{right:56px;text-align:right;align-items:flex-end;color:var(--earth)}
.hud-earth .lbl{color:rgba(var(--earth-rgb),.6)}
.hud-earth .sub{color:rgba(var(--earth-rgb),.5);font-style:normal}
.hud-you .t{visibility:hidden}
body.landed .hud-you .t{visibility:visible}
body.launched .hud-you{opacity:1;transition:opacity 1s ease .2s}
body.launched .hud-you .sub,body.launched .hud-you .rate{opacity:0;transition:opacity 1.4s ease 1.8s}
body.landed .hud-you .sub,body.landed .hud-you .rate{opacity:1}
body.launched .hud-earth{opacity:1;transition:opacity 1.4s ease 1s}
body.fading .hud-earth{opacity:.3;transition:opacity 7s ease}

.murphy{position:absolute;left:0;right:0;top:calc(50vh + 70px);margin:0;text-align:center;font-size:11px;letter-spacing:.32em;
  text-transform:uppercase;color:rgba(var(--ink-rgb),.42);opacity:0;transition:opacity 1.8s ease}
body.quoted .murphy{opacity:1}
body.quoted.dissolving .murphy{opacity:0;transition:opacity .8s}

.scrollcue{position:absolute;left:50%;bottom:30px;transform:translateX(-50%);display:flex;flex-direction:column;align-items:center;gap:12px;opacity:0;transition:opacity 1.5s;pointer-events:none}
.cue-line{position:relative;display:block;width:1px;height:46px;overflow:hidden}
.cue-line span{position:absolute;left:0;top:-46px;width:1px;height:46px;background:linear-gradient(transparent,rgba(var(--ink-rgb),.8));animation:cue 2.4s ease-in-out infinite}
.cue-txt{font-size:10px;letter-spacing:.3em;text-transform:uppercase;color:rgba(var(--ink-rgb),.55);white-space:nowrap}
body.cue-idle .scrollcue, body.canscroll.dissolving.cue-idle .scrollcue{opacity:.7;transition:opacity 1.2s}
/* no buraco negro: arrastar para rodar */
.draghint{position:absolute;left:50%;bottom:34px;transform:translateX(-50%);display:flex;align-items:center;gap:14px;opacity:0;transition:opacity 1s;
  font-size:10px;letter-spacing:.3em;text-transform:uppercase;color:rgba(var(--ink-rgb),.75);white-space:nowrap;pointer-events:none}
.draghint .dh-a{font-size:13px;letter-spacing:0;animation:dh 1.8s ease-in-out infinite}
.draghint .dh-a:last-child{animation-direction:reverse}
@keyframes dh{0%,100%{transform:translateX(0)}50%{transform:translateX(-6px)}}
body.drag-hint .draghint{opacity:1}
body.drag-hint .scrollcue{opacity:0 !important}
@keyframes cue{0%{top:-46px}70%,100%{top:46px}}
body.canscroll .scrollcue{opacity:1}
body.canscroll.dissolving .scrollcue{opacity:0;transition:opacity .6s}

.sound{position:absolute;right:56px;bottom:40px;background:transparent;border:0;padding:6px 0;cursor:pointer;
  font-family:var(--mono);font-size:10px;letter-spacing:.26em;text-transform:uppercase;color:rgba(var(--ink-rgb),.38)}
.sound{display:flex;align-items:center;gap:12px}
.sound:hover{color:rgba(var(--ink-rgb),.75)}
.sound:focus-visible{outline:1px solid rgba(var(--ink-rgb),.5);outline-offset:6px}
.waves{display:flex;align-items:center;gap:3px;height:16px}
.waves i{display:block;width:1.5px;height:16px;background:rgba(var(--ink-rgb),.7);border-radius:1px;transform-origin:50% 50%;
  animation:wave 1.1s ease-in-out infinite;transition:transform .5s ease,opacity .5s}
.waves i:nth-child(1){animation-delay:-.2s;animation-duration:1.3s}
.waves i:nth-child(2){animation-delay:-.6s;animation-duration:.9s}
.waves i:nth-child(3){animation-delay:-.1s;animation-duration:1.15s}
.waves i:nth-child(4){animation-delay:-.8s;animation-duration:.95s}
.waves i:nth-child(5){animation-delay:-.4s;animation-duration:1.25s}
@keyframes wave{0%,100%{transform:scaleY(.18)}50%{transform:scaleY(1)}}
.sound.off .waves i{animation:none;transform:scaleY(.08);opacity:.6}
@media (prefers-reduced-motion:reduce){.waves i{animation:none;transform:scaleY(.5)}}

.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

@media (max-width:700px){
  .top{left:22px;right:22px;top:26px}
  .hud{top:24px}.hud-you{left:22px}.hud-earth{right:22px}
  .hud .t{font-size:16px}
  .sound{right:22px;bottom:24px}
  .clock-wrap{top:24vh}
  .hold{top:calc(100vh - 120px - 84px)}
}

/* frases do buraco de minhoca */
.phrase{position:absolute;left:0;right:0;top:15vh;display:flex;flex-direction:column;align-items:center;gap:22px;text-align:center;
  padding:0 24px;opacity:0;will-change:transform,opacity}
.phrase p{margin:0;max-width:900px;font-family:var(--serif);font-style:italic;font-weight:300;font-size:clamp(26px,3.6vw,48px);line-height:1.22;letter-spacing:-.01em;color:var(--ink);text-wrap:balance}
.how-link{pointer-events:auto;background:transparent;border:0;border-bottom:1px solid rgba(var(--earth-rgb),.6);padding:8px 0;cursor:pointer;
  font-family:var(--mono);font-size:11px;letter-spacing:.26em;text-transform:uppercase;color:var(--ink)}
.how-link:hover{border-bottom-color:var(--earth)}
.how-link:focus-visible,.how-close:focus-visible{outline:1px solid rgba(var(--ink-rgb),.5);outline-offset:6px}

.how{position:fixed;top:0;right:0;bottom:0;z-index:6;width:min(780px,100vw);overflow-y:auto;overscroll-behavior:contain;
  padding:72px 44px 56px;background:rgba(7,7,9,.9);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-left:1px solid rgba(var(--ink-rgb),.1);transform:translateX(100%);transition:transform .7s cubic-bezier(.65,0,.18,1);visibility:hidden}
.how.open{transform:none;visibility:visible}
.how-close{position:absolute;top:28px;right:44px;background:transparent;border:0;padding:6px 0;cursor:pointer;
  font-family:var(--mono);font-size:10px;letter-spacing:.26em;text-transform:uppercase;color:rgba(var(--ink-rgb),.55)}
.how-close:hover{color:var(--ink)}
.how-eyebrow{margin:0 0 30px;font-size:11px;letter-spacing:.3em;text-transform:uppercase;color:var(--earth)}
.how h2{margin:30px 0 10px;font-family:var(--serif);font-style:italic;font-weight:300;font-size:26px;line-height:1.15;color:var(--ink)}
.how p{margin:0;font-family:var(--serif);font-weight:300;font-size:17px;line-height:1.6;color:rgba(var(--ink-rgb),.78)}
.how{padding:72px 64px 64px}
.how p{max-width:620px}
/* imagens nas camadas "Como funciona" (e no Explorar): se o ficheiro ainda não existir, fica um espaço marcado com o nome */
.slot{margin:30px 0 8px}
.slot .slot-box{position:relative;aspect-ratio:16/9;overflow:hidden;background:radial-gradient(ellipse 70% 60% at 50% 45%,#1a1a1d 0%,#0c0c0e 100%)}
.slot.slot-big .slot-box{aspect-ratio:2.39/1}
.slot img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.slot .slot-ph{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;text-align:center;padding:0 24px}
.slot .slot-ph b{font-weight:400;font-size:10px;letter-spacing:.22em;text-transform:uppercase;color:rgba(var(--ink-rgb),.36)}
.slot .slot-ph i{font-style:normal;font-size:10px;letter-spacing:.06em;color:rgba(var(--earth-rgb),.55)}
.slot figcaption{margin:12px 0 0;font-family:var(--mono);font-size:9px;line-height:1.6;letter-spacing:.16em;text-transform:uppercase;color:rgba(var(--ink-rgb),.42)}
.slot.missing figcaption{opacity:.6}
.slot-two{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:30px}
.slot-two .slot{margin:0}
.slot-two .slot .slot-box{aspect-ratio:4/5}
@media (max-width:700px){.how{padding:64px 22px 40px}.slot-two{grid-template-columns:1fr}.how-close{right:22px}.phrase{top:13vh}}

/* excerto: sai do pó, com as margens a desfazer-se */
.clip{--r:0%;position:absolute;left:50%;top:52%;width:min(78vw,1100px);aspect-ratio:1280/528;transform:translate(-50%,-50%);
  visibility:hidden;pointer-events:none}
.clip video{width:100%;height:100%;display:block;object-fit:cover;mix-blend-mode:screen;filter:saturate(.82) contrast(1.06) brightness(1.05);
  -webkit-mask-image:radial-gradient(ellipse 50% 50% at 50% 50%,#000 var(--r),transparent calc(var(--r) + 34%));
          mask-image:radial-gradient(ellipse 50% 50% at 50% 50%,#000 var(--r),transparent calc(var(--r) + 34%))}
.clip-credit{position:absolute;left:0;right:0;bottom:-34px;margin:0;text-align:center;font-size:9px;letter-spacing:.22em;text-transform:uppercase;color:rgba(var(--ink-rgb),.32)}
.clip-skip{position:absolute;right:0;bottom:-40px;background:transparent;border:0;padding:6px 0;cursor:pointer;pointer-events:auto;
  font-family:var(--mono);font-size:10px;letter-spacing:.24em;text-transform:uppercase;color:rgba(var(--ink-rgb),.4)}
.clip-skip:hover{color:var(--ink)}
.tess-skip{position:fixed;left:50%;right:auto;bottom:44px;transform:translateX(-50%);opacity:0;visibility:hidden;transition:opacity .8s, visibility 0s .8s;z-index:5}
.tess-skip.on{opacity:1;visibility:visible;transition:opacity .8s, visibility 0s}
.clip-skip:focus-visible{outline:1px solid rgba(var(--ink-rgb),.5);outline-offset:6px}
@media (max-width:700px){.clip{width:94vw}.clip-credit{bottom:-30px;text-align:left}}

/* Miller: o céu claro sobe de baixo para cima */
.sky{--wipe:0;--dim:1;position:fixed;inset:0;z-index:0;pointer-events:none;
  background:linear-gradient(to top,#9fa9ae 0%,#c3c9cb 38%,#d9dcdb 70%,#e2e2df 100%);
  clip-path:inset(calc((1 - var(--wipe)) * 100%) 0 0 0);opacity:var(--dim)}
#gl{z-index:1}
body.light{--ink-rgb:24,30,36;--earth-rgb:138,92,30;--ink:rgb(24,30,36);--earth:rgb(138,92,30)}
body.light .vignette{opacity:.06}
.vignette{transition:opacity 1.2s}
.how{color:var(--ink)}
.how{--ink-rgb:237,234,228;--earth-rgb:227,178,107;--ink:rgb(237,234,228);--earth:rgb(227,178,107)}

/* o sinal da Terra perde-se: só volta no fim */
body.lost .hud-earth{opacity:0;transition:opacity 2.5s ease}
#ph4{top:calc(50vh - 70px)}

.place{top:12vh;gap:10px}
.place-k{font-size:11px;letter-spacing:.34em;text-transform:uppercase;color:rgba(var(--ink-rgb),.6)}
.place p{font-size:clamp(40px,5.6vw,76px);letter-spacing:-.02em}

#ph8{top:calc(50vh - 50px)}

/* título da entrada: entre o relógio e o botão */
.title-block{position:absolute;left:0;right:0;top:58vh;display:flex;flex-direction:column;align-items:center;gap:10px;text-align:center;
  transform:translateY(calc(var(--hold, 0) * 26px)) scale(calc(1 - var(--hold, 0) * 0.04));transform-origin:50% 100%}
.tb-k{font-size:10px;letter-spacing:.32em;text-transform:uppercase;color:rgba(var(--ink-rgb),.5)}
.tb-t{margin:0;font-family:var(--serif);font-style:italic;font-weight:300;font-size:clamp(40px,5vw,68px);line-height:1;letter-spacing:-.01em;color:var(--ink)}
/* ao premir, a gravidade puxa o relógio e o título para o botão */
.clock-wrap{transform:translateY(calc(var(--hold, 0) * 34px))}
body.launched .clock-wrap{transform:none}
.caption{transition:opacity .6s}
/* o botão vira um pequeno buraco negro */
#hold .dot{transition:transform .6s ease, background .3s, box-shadow .3s}
#hold.pressing .dot{transform:scale(calc(1 + var(--hold, 0) * 3.2));background:#000;
  box-shadow:0 0 0 calc(0.6px + var(--hold, 0) * 1.2px) rgba(255,222,186,calc(0.35 + var(--hold, 0) * 0.65)), 0 0 calc(10px + var(--hold, 0) * 34px) rgba(255,200,150,calc(var(--hold, 0) * 0.55))}
.ring{filter:drop-shadow(0 0 calc(var(--hold, 0) * 6px) rgba(255,220,180,.8))}
/* onda de choque na partida */
.shock{position:absolute;left:50%;top:42px;width:84px;height:84px;margin:-42px 0 0 -42px;border-radius:50%;pointer-events:none;
  border:1px solid rgba(255,236,214,.6);box-shadow:0 0 10px rgba(255,205,160,.25);opacity:0;transform:scale(.4);will-change:transform,opacity}
.shock::after{content:"";position:absolute;inset:-2px;border-radius:50%;border:1px solid rgba(255,236,214,.7);box-shadow:0 0 18px rgba(255,205,160,.4);
  opacity:0;transform:scale(.6)}
body.launched .shock{animation:shock 1.9s cubic-bezier(.12,.75,.2,1) forwards}
body.launched .shock::after{display:none}
@keyframes shock{0%{opacity:.8;transform:scale(.4)}100%{opacity:0;transform:scale(22)}}
@keyframes shock2{0%{opacity:.9;transform:scale(.6)}100%{opacity:0;transform:scale(.8)}}
/* clarão no momento da partida */
.flash{position:fixed;inset:0;z-index:3;pointer-events:none;opacity:0;
  background:radial-gradient(circle at 50% var(--fy, 80%),rgba(255,236,214,.18),rgba(255,210,170,.04) 35%,rgba(0,0,0,0) 65%)}
body.launched .flash{animation:flash 1.3s ease-out forwards}
@keyframes flash{0%{opacity:0}8%{opacity:1}100%{opacity:0}}
body.launched .hold{opacity:1}
body.launched #hold, body.launched .hint{opacity:0;transition:opacity .5s}
@media (max-width:700px){.title-block{top:56vh}}

/* o fim */
.endp{top:50vh;margin-top:-1.4em}
.endp p{max-width:820px}
.endp-2{margin-top:2.2em}
#e1{margin-top:-2.6em}
.endp .num{font-family:var(--mono);font-style:normal;font-weight:300;font-size:.78em;letter-spacing:.02em;font-variant-numeric:tabular-nums}
.endp .e-sub{font-size:clamp(17px,1.8vw,22px);max-width:620px;color:rgba(var(--ink-rgb),.62)}
#e4{margin-top:-3em}
#e5{margin-top:-2.6em}
.eclocks{display:flex;gap:clamp(40px,10vw,160px);justify-content:center;flex-wrap:wrap;margin-top:-1em}
.ec{display:flex;flex-direction:column;gap:14px;align-items:center;font-family:var(--mono)}
.ec .lbl{font-size:10px;letter-spacing:.3em;text-transform:uppercase;color:rgba(var(--ink-rgb),.45)}
.ec-t{font-size:clamp(22px,3vw,40px);font-weight:300;letter-spacing:.02em;font-variant-numeric:tabular-nums;color:var(--ink)}
.ec-earth .lbl{color:rgba(var(--earth-rgb),.7)}
.ec-earth .ec-t{color:var(--earth)}
.outro{top:calc(50vh + 70px);gap:34px}
.explore{pointer-events:auto;font-family:var(--mono);font-size:11px;letter-spacing:.26em;text-transform:uppercase;color:var(--ink);text-decoration:none;
  border-bottom:1px solid rgba(var(--earth-rgb),.6);padding:8px 0}
.explore:hover{border-bottom-color:var(--earth)}
.explore:focus-visible{outline:1px solid rgba(var(--ink-rgb),.5);outline-offset:6px}
body.ending .hud-you,body.ending .hud-earth{opacity:0;transition:opacity 1.6s ease}
#ph9{top:auto;bottom:calc(max(130px, 22vh) + 64px);gap:10px;opacity:0;visibility:hidden;transition:opacity 1.2s, visibility 0s 1.2s}
#ph9.on{opacity:1;visibility:visible;transition:opacity 1.2s, visibility 0s}
/* legendas: por baixo do excerto e por cima do corredor do tesseract */
.subs{position:absolute;left:50%;bottom:112px;transform:translateX(-50%);width:min(90vw,820px);margin:0;text-align:center;pointer-events:none;
  font-family:var(--serif);font-weight:300;font-size:clamp(17px,1.6vw,22px);line-height:1.35;color:rgb(237,234,228);
  text-shadow:0 0 4px #000,0 0 12px rgba(0,0,0,.95),0 0 26px rgba(0,0,0,.85),0 1px 2px #000;opacity:0;transition:opacity .25s}
.subs.on{opacity:1}
@media (max-width:700px){.subs{bottom:96px}}
/* sem WebGL2 */
.nogl-msg{position:fixed;inset:0;z-index:30;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:22px;padding:0 24px;text-align:center;background:var(--bg)}
.nogl-msg[hidden]{display:none}
.nogl-msg p{margin:0;max-width:640px;font-family:var(--serif);font-style:italic;font-weight:300;font-size:clamp(22px,2.6vw,32px);line-height:1.3;color:var(--ink);text-wrap:balance}
.nogl-msg .nogl-sub{font-size:clamp(15px,1.4vw,18px);color:rgba(var(--ink-rgb),.6)}
.nogl-msg .explore{margin-top:12px}
#ph9 .ph9-or{font-family:var(--mono);font-size:10px;letter-spacing:.3em;text-transform:uppercase;color:rgba(var(--ink-rgb),.38)}

/* o fim: os textos à volta dos dois relógios (centros a ±min(27.5vh, 25vw), raio min(15vh, 20vw), 4vh acima do meio)
   e das linhas do tempo (Cooper a 37.5vh, a Terra a 60vh, a começar em 50% - min(42.5vh, 42.5vw)) — as mesmas contas do shader */
#e1, #e1b, #e2, #e3, #e4 { margin-top: 0 }
#e1 { top: calc(46vh - min(15vh, 20vw) - 118px) }
#e1b { top: calc(46vh - min(15vh, 20vw) - 70px) }
#e1 p, #e1b p, #e3 p, #e4 p { font-size: clamp(20px, 2.4vw, 32px) }
#e2 { top: calc(46vh + min(15vh, 20vw) + 26px) }
#e2 .eclocks { position: relative; display: block; width: 100%; height: 80px; margin: 0 }
#e2 .ec { position: absolute; top: 0; left: calc(50% - min(27.5vh, 25vw)); transform: translateX(-50%) }
#e2 .ec-earth { left: calc(50% + min(27.5vh, 25vw)) }
#e2 .ec-t { font-size: clamp(15px, 2vw, 28px); white-space: nowrap }
#e3, #e4 { align-items: flex-start; text-align: left; padding-left: calc(50% - min(42.5vh, 42.5vw)); padding-right: 24px }
#e3 p, #e4 p { max-width: 640px }
#e3 { top: calc(37.5vh - 30px); transform-origin: 0 0 }
#e3 p { transform: translateY(-100%) }
#e4 { top: calc(60vh + 30px) }

/* telemóvel: nada por cima de nada */
@media (max-width: 700px) {
  /* o nome do lugar (Planeta Miller, Buraco negro Gargantua) desce para baixo dos relógios do canto */
  .place { top: 132px }
  /* as pistas do fundo sobem, para não ficarem por cima de "Ligar som" */
  .scrollcue { bottom: 72px }
  .draghint { bottom: 72px }
  /* os valores dos dois relógios do fim partem-se em duas linhas em vez de sair do ecrã */
  #e2 .ec { width: 46vw }
  #e2 .ec .lbl { letter-spacing: .18em; text-align: center }
  #e2 .ec-t { white-space: normal; max-width: 44vw; font-size: 15px; line-height: 1.35; text-align: center }
}

/* ---------- ajudas: gesto animado + frase (rato no computador, dedo no telemóvel) ---------- */
.gest{position:absolute;left:0;right:0;display:flex;flex-direction:column;align-items:center;gap:12px;text-align:center;
  pointer-events:none;opacity:0;visibility:hidden;transition:opacity 1s, visibility 0s 1s}
.g-ico{position:relative;display:block;width:150px;height:44px}
.g-ico svg{position:absolute;left:50%;top:50%;fill:none;stroke:rgba(var(--ink-rgb),.9);stroke-width:1.3}
.ico-mouse{width:22px;height:33px;margin:-16.5px 0 0 -11px}
.ico-mouse .btn{fill:rgba(var(--ink-rgb),.9);fill-opacity:0;stroke:none}
.ico-mouse .wheel{fill:rgba(var(--ink-rgb),.9);stroke:none}
.ico-touch{width:34px;height:34px;margin:-17px 0 0 -17px;display:none}
.ico-touch .tip{fill:rgba(var(--ink-rgb),.35);stroke:rgba(var(--ink-rgb),.9)}
.ico-touch .ring{stroke:rgba(var(--ink-rgb),.35)}
body.touch .ico-mouse{display:none}
body.touch .ico-touch{display:block}
.g-txt{font-size:11px;letter-spacing:.28em;text-transform:uppercase;color:rgba(var(--ink-rgb),.85);white-space:nowrap}
.g-t{display:none}
body.touch .g-m{display:none}
body.touch .g-t{display:inline}
/* varrer: o rato vai de um lado ao outro, com um rasto */
.g-sweep::before{content:"";position:absolute;left:12px;right:12px;top:50%;height:1px;background:linear-gradient(90deg,transparent,rgba(var(--ink-rgb),.35),transparent)}
.g-sweep svg{animation:gSweep 2.4s cubic-bezier(.45,0,.55,1) infinite}
@keyframes gSweep{0%,100%{transform:translateX(-52px)}50%{transform:translateX(52px)}}
/* clicar e arrastar: o botão carrega, o rato vai para um lado e para o outro */
.g-drag{width:190px}
.g-drag .dh-a{position:absolute;top:50%;margin-top:-9px;font-size:15px;line-height:18px;color:rgba(var(--ink-rgb),.8)}
.g-drag .dh-a:first-child{left:0}
.g-drag .dh-a:last-of-type{right:0}
.g-drag svg{animation:gDrag 3s cubic-bezier(.45,0,.55,1) infinite}
.g-drag .ico-mouse .btn{animation:gClick 3s linear infinite}
.g-drag .ico-touch .tip{animation:gPress 3s linear infinite}
@keyframes gDrag{0%,10%{transform:translateX(0)}40%,50%{transform:translateX(52px)}85%{transform:translateX(-52px)}100%{transform:translateX(0)}}
@keyframes gClick{0%,6%{fill-opacity:0}10%,94%{fill-opacity:.9}100%{fill-opacity:0}}
@keyframes gPress{0%,6%{fill-opacity:.15}10%,94%{fill-opacity:.7}100%{fill-opacity:.15}}
/* fazer scroll: a roda desce; no telemóvel, o dedo desliza para cima */
.g-wheel{height:40px}
.g-wheel .ico-mouse .wheel{animation:gWheel 1.6s ease-in infinite}
.g-wheel .ico-touch{animation:gSwipe 1.8s cubic-bezier(.45,0,.55,1) infinite}
@keyframes gWheel{0%{transform:translateY(0);opacity:1}70%{transform:translateY(8px);opacity:0}100%{transform:translateY(8px);opacity:0}}
@keyframes gSwipe{0%{transform:translateY(12px);opacity:0}20%{opacity:1}80%{opacity:1}100%{transform:translateY(-14px);opacity:0}}
@media (prefers-reduced-motion: reduce){.g-ico svg,.g-ico .btn,.g-ico .wheel,.g-ico .tip{animation:none !important}}

/* onde aparece cada uma */
.scrollcue.gest{left:0;right:0;transform:none;bottom:30px;gap:10px}
.scrollcue .cue-line{display:none}
#gDust{bottom:calc(max(130px, 22vh) + 44px)}
#gWater{bottom:18vh}
.draghint.gest{left:0;right:0;transform:none;bottom:36px;flex-direction:column;gap:10px;font-size:inherit;letter-spacing:normal}
#ph9.gest{gap:12px}
#ph9 .ph9-or{margin-top:-4px}
body.g-dust #gDust, body.g-water #gWater{opacity:1;visibility:visible;transition:opacity 1s, visibility 0s}
/* a pista do scroll: mais visível (antes ficava escondida); lembra mais cedo se ficares parado */
body.canscroll .scrollcue{opacity:1;visibility:visible;transition:opacity 1.5s, visibility 0s}
body.canscroll.dissolving .scrollcue{opacity:0;visibility:hidden;transition:opacity .6s, visibility 0s .6s}
body.cue-idle .scrollcue, body.canscroll.dissolving.cue-idle .scrollcue{opacity:1;visibility:visible;transition:opacity 1s, visibility 0s}
body.drag-hint .draghint{opacity:1;visibility:visible;transition:opacity 1s, visibility 0s}
body.drag-hint .scrollcue, body.g-dust .scrollcue, body.g-water .scrollcue{opacity:0 !important}
@media (max-width:700px){
  .scrollcue.gest{bottom:76px}
  .draghint.gest{bottom:76px}
  .g-txt{letter-spacing:.2em;font-size:10px}
}
/* a ajuda da água fica sobre a água escura (mesmo no céu claro de Miller): sempre clara, com sombra */
#gWater{--ink-rgb:237,234,228}
#gWater .g-txt{text-shadow:0 0 6px rgba(0,0,0,.6)}
#gWater .g-ico svg{filter:drop-shadow(0 0 3px rgba(0,0,0,.5))}
/* passar por cima (sem clique): a seta do cursor, não o rato */
.ico-arrow{width:20px;height:20px;margin:-10px 0 0 -6px;stroke-linejoin:round}
.ico-arrow path{fill:rgba(var(--ink-rgb),.25)}
body.touch .ico-arrow{display:none}

/* entrada: deixar claro que o relógio é a tua hora real e que importa; e para quem é a experiência */
.caption{color:rgba(var(--ink-rgb),.66)}
.caption-2{margin:12px 0 0;font-family:var(--serif);font-style:italic;font-weight:300;font-size:clamp(15px,1.5vw,18px);letter-spacing:0;color:rgba(var(--ink-rgb),.78);transition:opacity .6s}
body.launched .caption-2{opacity:0}
.tb-for{margin-top:6px;font-family:var(--serif);font-style:italic;font-weight:300;font-size:clamp(14px,1.3vw,16px);color:rgba(var(--ink-rgb),.6);max-width:90vw}

/* ---------- ajuda: "?" no canto, explica a parte em que estás ---------- */
.helpbtn{position:absolute;right:56px;bottom:34px;width:32px;height:32px;border-radius:50%;border:1px solid rgba(var(--ink-rgb),.45);background:transparent;
  color:rgba(var(--ink-rgb),.85);font-family:var(--serif);font-style:italic;font-size:17px;line-height:1;cursor:pointer;display:flex;align-items:center;justify-content:center;
  transition:border-color .3s, color .3s, background .3s}
.helpbtn:hover,.helpbtn[aria-expanded="true"]{border-color:rgba(var(--ink-rgb),.9);color:rgb(var(--ink-rgb));background:rgba(var(--ink-rgb),.06)}
.helpbtn:focus-visible{outline:1px solid rgba(var(--ink-rgb),.5);outline-offset:5px}
.sound{right:104px}
.helpbox{--ink-rgb:237,234,228;--earth-rgb:227,178,107;position:fixed;right:56px;bottom:84px;z-index:7;width:min(400px, calc(100vw - 44px));
  padding:22px 26px 24px;background:rgba(7,7,9,.92);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border:1px solid rgba(var(--ink-rgb),.12);
  color:rgb(var(--ink-rgb));opacity:0;visibility:hidden;transform:translateY(10px);transition:opacity .4s, transform .4s, visibility 0s .4s}
.helpbox.open{opacity:1;visibility:visible;transform:none;transition:opacity .4s, transform .4s, visibility 0s}
.helpbox .how-eyebrow{margin:0 0 14px}
.helpbox .how-close{top:18px;right:22px}
.help-p{margin:0;font-family:var(--serif);font-weight:300;font-size:16px;line-height:1.55;color:rgba(var(--ink-rgb),.85)}
.help-goal{margin:16px 0 0;padding-top:14px;border-top:1px solid rgba(var(--ink-rgb),.12);font-family:var(--serif);font-style:italic;font-weight:300;font-size:15px;line-height:1.5;color:rgba(var(--ink-rgb),.72)}
.help-gk{display:block;margin-bottom:6px;font-family:var(--mono);font-style:normal;font-size:10px;letter-spacing:.28em;text-transform:uppercase;color:rgba(var(--earth-rgb),.85)}
@media (max-width:700px){
  .helpbtn{right:22px;bottom:20px}
  .sound{right:66px}
  .helpbox{right:22px;bottom:66px}
}
@media (max-width:700px){ .caption{letter-spacing:.16em;font-size:10px;padding:0 16px} .caption-2{padding:0 16px} }
/* as ajudas opcionais (pó, água, Gargantua, linhas do STAY) são um convite: um pouco mais subtis que a do scroll */
#gDust .g-txt, #gWater .g-txt, #dragHint .g-txt, #ph9 .g-txt{color:rgba(var(--ink-rgb),.62)}
#gDust .g-ico svg, #gWater .g-ico svg, #dragHint .g-ico svg, #ph9 .g-ico svg{opacity:.72}
#dragHint .dh-a{color:rgba(var(--ink-rgb),.6)}
/* Miller: céu claro em cima (relógio escuro), água escura em baixo (controlos claros) até a onda chegar */
body.low-dark .sound, body.low-dark .helpbtn, body.low-dark .scrollcue, body.low-dark .subs{--ink-rgb:237,234,228;--ink:rgb(237,234,228);text-shadow:0 0 6px rgba(0,0,0,.45)}
/* demonstração das interações opcionais: um cursor-fantasma (dedo no telemóvel) faz o gesto a sério; o ícone que ia e vinha sai */
#gDust .g-ico, #gWater .g-ico, #dragHint .g-ico, #ph9 .g-ico{display:none}
.ghost{position:fixed;left:0;top:0;z-index:6;pointer-events:none;opacity:0;transition:opacity .4s;will-change:transform}
.ghost.on{opacity:.75}
.ghost svg{position:absolute;left:-4px;top:-2px;width:20px;height:20px;fill:rgba(237,234,228,.9);stroke:rgba(8,10,12,.55);stroke-width:1;filter:drop-shadow(0 0 4px rgba(0,0,0,.5))}
.ghost .gh-ring{position:absolute;left:-12px;top:-12px;width:24px;height:24px;border-radius:50%;border:1px solid rgba(237,234,228,.75);transform:scale(.3);opacity:0;transition:transform .25s, opacity .25s}
.ghost.down .gh-ring{transform:scale(1);opacity:1}
.ghost .gh-touch{display:none;position:absolute;left:-15px;top:-15px;width:30px;height:30px;border-radius:50%;background:rgba(237,234,228,.22);border:1px solid rgba(237,234,228,.6);transition:transform .25s}
body.touch .ghost svg, body.touch .ghost .gh-ring{display:none}
body.touch .ghost .gh-touch{display:block}
body.touch .ghost.down .gh-touch{transform:scale(.8);background:rgba(237,234,228,.35)}
#gDust .g-or{margin-top:-4px;font-family:var(--mono);font-size:10px;letter-spacing:.3em;text-transform:uppercase;color:rgba(var(--ink-rgb),.38)}