@font-face{font-family:"Nunito";src:url("fonts/nunito-latin-wght-normal.woff2") format("woff2");font-weight:200 1000;font-style:normal;font-display:swap}

/* Layout: one black stage. Big type on the left; Leo's board leans in from the right in 3D and
   slides slowly to the left. Below: three short promises, then the legal links. */
:root{
  --black:#000000;          /* page */
  --paper:#F1F1F1;          /* text */
  --mute:#ABABAB;           /* secondary text, 9:1 on black */
  --line:#262626;           /* hairlines, empty board slots */
  --slab:#161616;           /* tile face */
  --slab-edge:#2E2E2E;      /* tile border and thickness */
  --yellow:#F2B33B;         /* the MyVoice button (app accent) */
  --yellow-hi:#F6C35F;
  --display:"Nunito", ui-rounded, "SF Pro Rounded", "Arial Rounded MT Bold", system-ui, sans-serif;
  --body:"Nunito", ui-rounded, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --gutter:max(16px, 5vw);
  --btn:clamp(64px,6vw,78px); /* button height; the MyVoice logo matches it */
  --lead:clamp(1.15rem,1.65vw,1.55rem); /* intro lines and the note under the button */
  color-scheme:dark;
}
*,*::before,*::after{box-sizing:border-box}
html{background:var(--black);-webkit-text-size-adjust:100%}
body{margin:0;background:var(--black);color:var(--paper);font-family:var(--body);font-size:18px;line-height:1.5;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
img{max-width:100%}
a{color:inherit}
:focus-visible{outline:3px solid var(--paper);outline-offset:4px;border-radius:6px}
::selection{background:var(--yellow);color:var(--black)}

/* ---------- hero ---------- */
.hero{position:relative;min-height:min(100svh, 1040px);display:flex;flex-direction:column;justify-content:center;padding-inline:var(--gutter);padding-block:calc(env(safe-area-inset-top,0px) + clamp(18px,3vw,32px) + clamp(58px,6.4vw,88px) + clamp(28px,5vh,64px)) clamp(48px,8vh,96px);overflow:clip}
.brand{position:absolute;z-index:3;top:calc(env(safe-area-inset-top,0px) + clamp(18px,3vw,32px));left:var(--gutter);display:block;border-radius:12px}
.brand img{display:block;height:clamp(58px,6.4vw,88px);width:auto}
.hero-copy{position:relative;z-index:2;display:flex;flex-direction:column;align-items:flex-start;gap:clamp(22px,2.6vw,36px);max-width:min(760px,52vw);pointer-events:none}
.hero-copy > *{pointer-events:auto}
h1{margin:0;max-width:13em;font-family:var(--display);font-weight:900;font-size:clamp(2.5rem,min(5.4vw,8.6vh),5.75rem);line-height:.98;letter-spacing:-.03em;text-wrap:balance}
.intro{display:flex;flex-direction:column;gap:.35em;font-size:var(--lead);line-height:1.3}
.intro p{margin:0}
.lede{max-width:44ch;font-weight:650;text-wrap:balance}
.hello{color:var(--yellow);font-weight:850}
.go{display:flex;flex-direction:column;align-items:flex-start;gap:clamp(40px,4.2vw,64px)}
.go-row{display:flex;align-items:center;gap:clamp(12px,1.4vw,18px)}
.go-logo{display:block;border-radius:12px}
.go-logo img{display:block;height:var(--btn);width:auto}
.cta{display:inline-flex;align-items:center;justify-content:center;min-height:var(--btn);padding-inline:clamp(40px,4vw,56px);border-radius:999px;background:var(--yellow);color:var(--black);font-family:var(--display);font-weight:900;font-size:clamp(1.6rem,2.3vw,2.15rem);letter-spacing:-.01em;text-decoration:none;transition:background-color .15s ease, transform .15s ease}
.cta:hover{background:var(--yellow-hi);transform:translateY(-2px)}
.cta:active{transform:translateY(1px)}
.cta-note{margin:0;color:var(--mute);font-size:var(--lead);line-height:1.3;font-weight:650}
.hl{color:var(--yellow);font-weight:850;white-space:nowrap}
.sr{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

/* ---------- Leo's board, in 3D, sliding left ---------- */
.board-stage{position:absolute;z-index:1;inset:0 0 0 44%;perspective:1500px;perspective-origin:30% 45%;pointer-events:none;
  -webkit-mask-image:linear-gradient(90deg,transparent 0,#000 30%),linear-gradient(180deg,transparent 0,#000 12%,#000 82%,transparent 100%);
  -webkit-mask-composite:source-in;
          mask-image:linear-gradient(90deg,transparent 0,#000 30%),linear-gradient(180deg,transparent 0,#000 12%,#000 82%,transparent 100%);
          mask-composite:intersect}
.board{--t:clamp(96px,9vw,140px);--g:calc(var(--t)*.13);position:absolute;left:58%;top:50%;transform-style:preserve-3d;pointer-events:auto;will-change:transform;touch-action:pan-y;
  transform:translate(-50%,-50%) rotateX(14deg) rotateY(-30deg) rotateZ(-5deg)}
.track{display:flex;gap:var(--g);transform-style:preserve-3d;will-change:transform}
.col{display:flex;flex-direction:column;gap:var(--g);transform-style:preserve-3d}
.cell{position:relative;flex:none;width:var(--t);height:calc(var(--t)*1.14);transform-style:preserve-3d}
.slot{position:absolute;inset:0;border-radius:18%/16%;border:2px dashed var(--line)}
.tile,.drop{position:absolute;inset:0;transform-style:preserve-3d}
.tile{will-change:transform}
.drop{opacity:0}
.cell.in .drop{animation:drop .75s cubic-bezier(.22,1.35,.42,1) both}
.cell.now .drop{opacity:1;animation:fade .35s ease both}
@keyframes drop{0%{opacity:0;transform:translateZ(260px) rotateX(-18deg)}35%{opacity:1}100%{opacity:1;transform:none}}
@keyframes fade{from{opacity:0}to{opacity:1}}
.edge,.face{position:absolute;inset:0;border-radius:18%/16%}
.edge{background:var(--slab-edge);transform:translateZ(-14px)}
.face{display:grid;grid-template-rows:minmax(0,1fr) auto;justify-items:center;padding:7% 7% 6%;background:var(--slab);border:2px solid var(--slab-edge);transition:border-color .2s ease}
.face img{display:block;width:100%;height:100%;object-fit:contain;-webkit-user-drag:none;user-select:none}
.face span{padding-top:2%;font-family:var(--body);font-weight:800;font-size:calc(var(--t)*.125);line-height:1.1;white-space:nowrap;color:var(--paper)}
.cell.up .face{border-color:var(--paper)}
/* App colours (mockup option): the board's own part-of-speech colours */
.look-app .face{background:var(--pos-bg);border-color:var(--pos-border)}
.look-app .face span{color:#263238}
.look-app .edge{background:color-mix(in srgb,var(--pos-border) 55%,#000)}
.look-app .cell.up .face{border-color:var(--paper)}
.no-labels .face{grid-template-rows:minmax(0,1fr) 0}
.no-labels .face span{visibility:hidden}

/* ---------- good to know ---------- */
.wrap{max-width:1240px;margin-inline:auto;padding-inline:var(--gutter)}
.notes{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px clamp(28px,4vw,56px);margin-top:clamp(24px,4vw,56px);padding-block:clamp(28px,3vw,40px) clamp(64px,8vw,112px);border-top:1px solid var(--line)}
.notes h2{margin:0 0 .35em;font-family:var(--display);font-weight:900;font-size:clamp(1.25rem,1.6vw,1.45rem);line-height:1.2;letter-spacing:-.01em}
.notes p{margin:0;max-width:34ch;color:var(--mute);font-size:1rem;line-height:1.55}
.price s{margin-right:.3em;color:var(--mute);font-weight:800;text-decoration-thickness:.12em}

/* ---------- footer ---------- */
footer{border-top:1px solid var(--line)}
.foot{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px 32px;padding-block:28px calc(28px + env(safe-area-inset-bottom,0px));font-size:.95rem;color:var(--mute)}
.foot nav ul{display:flex;flex-wrap:wrap;gap:8px 22px;margin:0;padding:0;list-style:none}
.foot a{color:var(--paper);text-decoration:none;text-underline-offset:3px}
.foot a:hover{text-decoration:underline}
.foot p{margin:0}
.who{display:flex;flex-wrap:wrap;gap:8px 24px}

/* ---------- smaller screens ---------- */
@media (max-width:1099px){
  .board{--t:clamp(88px,12vw,128px)}
  .board-stage{inset:0 0 0 42%}
}
@media (max-width:759px){
  body{font-size:17px}
  :root{--btn:64px}
  .hero{min-height:0;justify-content:flex-start;padding-block:calc(env(safe-area-inset-top,0px) + 112px) 0}
  .brand img{height:64px}
  .hero-copy{max-width:none}
  h1{font-size:clamp(2.2rem,9.6vw,3.4rem);line-height:1}
  .board-stage{position:relative;inset:auto;height:min(118vw,560px);margin-inline:calc(var(--gutter) * -1);margin-top:8px;perspective:900px;perspective-origin:50% 0%;
    -webkit-mask-image:linear-gradient(180deg,transparent 0,#000 16%,#000 70%,transparent 100%);
            mask-image:linear-gradient(180deg,transparent 0,#000 16%,#000 70%,transparent 100%);
    -webkit-mask-composite:source-over;mask-composite:add}
  .board{--t:19vw;left:50%;top:46%;transform:translate(-50%,-50%) rotateX(34deg) rotateZ(-12deg)}
  .notes{grid-template-columns:minmax(0,1fr);gap:24px;margin-top:0}
  .foot{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  .cell.in .drop,.cell.now .drop{animation:none;opacity:1}
  .cta{transition:none}
  .cta:hover,.cta:active{transform:none}
}

/* ---------- 404 page ---------- */
.lost{min-height:100svh;display:flex;flex-direction:column;justify-content:center;align-items:flex-start;gap:32px;padding-block:48px}
.lost h1{font-size:clamp(2.2rem,6vw,4.5rem);line-height:1;max-width:14em}
.lost .brand-inline img{display:block;height:72px;width:auto}