@font-face{font-family:'Instrument Serif';src:url(/assets/fonts/instrument-serif-latin-400-normal.woff2) format('woff2');font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:'Instrument Serif';src:url(/assets/fonts/instrument-serif-latin-400-italic.woff2) format('woff2');font-weight:400;font-style:italic;font-display:swap}
@font-face{font-family:'Hanken Grotesk';src:url(/assets/fonts/hanken-grotesk-latin-wght-normal.woff2) format('woff2');font-weight:100 900;font-display:swap}
@font-face{font-family:'DM Mono';src:url(/assets/fonts/dm-mono-latin-400-normal.woff2) format('woff2');font-weight:400;font-display:swap}
@font-face{font-family:'DM Mono';src:url(/assets/fonts/dm-mono-latin-500-normal.woff2) format('woff2');font-weight:500;font-display:swap}

/* ---- the two layers ---- */
:root{
  --serif:'Instrument Serif','Times New Roman',serif;
  --sans:'Hanken Grotesk',system-ui,-apple-system,'Segoe UI',sans-serif;
  --mono:'DM Mono',ui-monospace,Menlo,monospace;
  --pad:clamp(20px,4vw,56px);
  --accent:#7b5cff;
  --ease:cubic-bezier(.2,.7,.1,1);
}
:root[data-theme="signal"]{ --bg:#050506; --fg:#ecebe8; --mute:#8e8d94; --line:#25252b; --chip:#0e0e12; --grain:.07; color-scheme:dark }
:root[data-theme="street"]{ --accent:#5b3fe0; --bg:#e8e5df; --fg:#0b0b0d; --mute:#66645f; --line:#c8c4ba; --chip:#dcd8d0; --grain:.12; color-scheme:light }

*{box-sizing:border-box}
html{background:var(--bg);color:var(--fg);-webkit-text-size-adjust:100%;transition:background-color .7s var(--ease),color .7s var(--ease)}
body{margin:0;font-family:var(--sans);font-size:17px;line-height:1.5;background:var(--bg);overflow-x:hidden;transition:background-color .7s var(--ease)}
a{color:inherit;text-decoration:none}
.skip{position:fixed;left:12px;top:-60px;z-index:100;background:var(--fg);color:var(--bg);padding:10px 14px;border-radius:8px}
.skip:focus{top:12px}
:focus{outline:none}
:focus-visible{outline:1.5px solid var(--accent);outline-offset:4px;border-radius:6px}
.mono{font-family:var(--mono);font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--mute)}

/* ---- header ---- */
.hdr{position:fixed;inset:0 0 auto 0;z-index:50;display:flex;align-items:center;justify-content:space-between;padding:22px var(--pad);pointer-events:none}
.hdr>*{pointer-events:auto}
.mark{font-family:var(--mono);font-size:12px;letter-spacing:.14em;color:var(--mute);transition:color .3s}
.mark:hover{color:var(--fg)}
.nav{display:flex;align-items:center;gap:clamp(18px,2.6vw,34px);font-size:14px;font-weight:500;letter-spacing:.01em}
.nav a{opacity:.72;transition:opacity .25s}
.nav a:hover{opacity:1}
.theme{display:inline-flex;align-items:center;gap:10px;background:none;border:0;color:var(--fg);font:inherit;cursor:pointer;padding:6px 2px}
.t-lab{font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;opacity:.42;transition:opacity .4s}
:root[data-theme="signal"] .t-signal,:root[data-theme="street"] .t-street{opacity:1}
.t-track{position:relative;width:34px;height:18px;border-radius:99px;box-shadow:inset 0 0 0 1px var(--line);background:var(--chip)}
.t-track i{position:absolute;top:3px;left:3px;width:12px;height:12px;border-radius:50%;background:linear-gradient(160deg,#fff,#9aa3b8 60%,#2a2d38);transition:transform .55s var(--ease)}
:root[data-theme="signal"] .t-track i{transform:translateX(16px);background:linear-gradient(160deg,#fff,#b9c3ff 55%,#4a3bb5)}
@media (max-width:640px){ .nav a:not(:nth-child(2)){display:none} .mark{font-size:11px} .t-lab{display:none} }

/* ---- hero: the logo is the page ---- */
.hero{position:relative;height:100svh;min-height:560px;overflow:hidden}
#logo{position:absolute;inset:0;width:100%;height:100%;display:block;touch-action:pan-y;opacity:0;transition:opacity 1.2s var(--ease) .1s;-webkit-tap-highlight-color:transparent}
#logo.is-live{opacity:1}
#logo.is-grabbed{cursor:grabbing}
.hero-copy{position:absolute;left:var(--pad);right:var(--pad);bottom:clamp(28px,6vh,64px);display:flex;flex-direction:column;gap:14px;pointer-events:none}
.coords{margin:0;font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--mute)}
.statement{margin:0;font-family:var(--serif);font-weight:400;font-size:clamp(38px,6.4vw,104px);line-height:.98;letter-spacing:-.015em;max-width:14ch}
.statement em,.display em{font-style:italic}
.hint{position:absolute;right:var(--pad);bottom:clamp(30px,6.4vh,68px);margin:0;font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--mute);display:flex;align-items:center;gap:10px;transition:opacity .6s}
.hint::before{content:"";width:28px;height:1px;background:currentColor;opacity:.6}
.logo-touched .hint{opacity:0}
@media (max-width:640px){ .hint{display:none} .statement{max-width:11ch} .coords{display:none} }

/* ---- the melt ---- */
.layers{position:relative;height:340vh}
.stick{position:sticky;top:0;height:100svh;display:grid;grid-template-columns:minmax(300px,.8fr) 1.2fr;align-items:center;gap:clamp(12px,3vw,48px);padding:96px var(--pad) 40px}
.col{display:flex;flex-direction:column;gap:18px;max-width:520px;z-index:2}
.eyebrow{margin:0;font-family:var(--mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--accent);transition:opacity .2s,transform .2s}
.display{margin:0;font-family:var(--serif);font-weight:400;font-size:clamp(40px,5vw,84px);line-height:.98;letter-spacing:-.012em}
.body{margin:0;max-width:34ch;color:var(--mute);font-size:17px;line-height:1.55;transition:opacity .2s,transform .2s}
.swap{opacity:0;transform:translateY(4px)}
.scrub{display:flex;align-items:center;gap:14px;margin-top:6px}
.scrub input{flex:1;appearance:none;-webkit-appearance:none;height:18px;background:transparent;cursor:pointer;touch-action:pan-y}
.scrub input::-webkit-slider-runnable-track{height:1px;background:var(--line)}
.scrub input::-moz-range-track{height:1px;background:var(--line)}
.scrub input::-webkit-slider-thumb{-webkit-appearance:none;width:16px;height:16px;border-radius:50%;margin-top:-8px;background:linear-gradient(160deg,#fff,#9aa3b8 60%,#2a2d38);box-shadow:0 0 0 1px var(--line)}
.scrub input::-moz-range-thumb{width:16px;height:16px;border:0;border-radius:50%;background:linear-gradient(160deg,#fff,#9aa3b8 60%,#2a2d38)}
.meta{margin:0}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chips button{font-family:var(--mono);font-size:12px;letter-spacing:.08em;min-width:44px;height:36px;border-radius:99px;border:0;color:var(--fg);background:transparent;box-shadow:inset 0 0 0 1px var(--line);cursor:pointer;transition:background-color .3s,color .3s,box-shadow .3s}
.chips button:hover{box-shadow:inset 0 0 0 1px var(--mute)}
.chips button[aria-pressed="true"]{background:var(--fg);color:var(--bg);box-shadow:none}
.stage{position:relative;height:100%;min-height:0}
#object{position:absolute;inset:0;width:100%;height:100%;display:block;cursor:grab;touch-action:pan-y}
@media (max-width:820px){
  .stick{grid-template-columns:1fr;grid-template-rows:minmax(0,1fr) auto;padding-top:76px;gap:0;align-items:stretch}
  .stage{order:-1}
  .col{gap:12px;padding-bottom:6px}
  .display{font-size:clamp(34px,10vw,52px)}
  .body{font-size:15px;max-width:none}
  .chips button{min-width:38px;height:34px}
}
.foot{padding:48px var(--pad) 64px;text-align:center}

/* film grain: a little tooth so flat colour never looks digital */
.grain{position:fixed;inset:-50%;z-index:60;pointer-events:none;opacity:var(--grain);mix-blend-mode:overlay;
  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='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 .5  0 0 0 0 .5  0 0 0 0 .5  0 0 0 1.1 -.2'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
  animation:grain 1.2s steps(6) infinite}
@keyframes grain{0%{transform:translate(0,0)}20%{transform:translate(-3%,2%)}40%{transform:translate(2%,-3%)}60%{transform:translate(-2%,-1%)}80%{transform:translate(3%,3%)}100%{transform:translate(0,0)}}
@media (prefers-reduced-motion:reduce){.grain{animation:none}html{scroll-behavior:auto}}