:root{
  --bg:#11141D; --card:#181C28; --line:#2A3042; --text:#E8EAF0; --muted:#9099AD; --gold:#C9A24A; --gold-hi:#D8B565; --err:#F09A8E;
  --quart:cubic-bezier(0.25,1,0.5,1); --quint:cubic-bezier(0.22,1,0.36,1); --expo:cubic-bezier(0.16,1,0.3,1);
  --body:'Montserrat',system-ui,sans-serif; --display:'Zilla Slab',Georgia,serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);font:400 1rem/1.65 var(--body);font-variant-numeric:tabular-nums}
img{display:block;max-width:100%}
a{color:var(--gold)}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
:focus-visible{outline:2px solid var(--gold-hi);outline-offset:3px}

h1,h2,h3{font-family:var(--display);font-weight:700;line-height:1.12;margin:0 0 .6em;letter-spacing:-.01em}
h1{font-size:clamp(2.1rem,6.2vw,3.9rem)}
h2{font-size:clamp(1.6rem,3.6vw,2.4rem)}
h3{font-size:1.25rem;font-weight:600}
p{margin:0 0 1em;max-width:62ch}

.top,.hero,.play,.maths,.need,.script,.gap,.join,.foot{padding-left:max(1rem,calc((100vw - 68rem)/2));padding-right:max(1rem,calc((100vw - 68rem)/2))}

.top{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding-top:.75rem;padding-bottom:.75rem}
.brand{display:flex;align-items:center;gap:.7rem;color:var(--text);text-decoration:none;font-weight:600;min-height:44px}
.brand img{border-radius:8px}
.top-link{color:var(--text);text-decoration:none;font-weight:600;min-height:44px;display:inline-flex;align-items:center;border-bottom:1px solid var(--gold)}
.top-link:hover{color:var(--gold-hi)}

/* hero: 7/5 split, copy left, seat count right */
.hero{display:grid;grid-template-columns:1fr;gap:2.5rem;padding-top:clamp(2.5rem,7vw,5.5rem);padding-bottom:clamp(3rem,8vw,6rem)}
.lede{font-size:1.15rem;color:var(--text);max-width:54ch;margin-bottom:1.6rem}
.fine{color:var(--muted);font-size:.875rem;margin:.8rem 0 0}
.seats{background:var(--card);border-radius:14px;padding:1.5rem 1.5rem 1.25rem;align-self:start}
.seats h2{font-family:var(--body);font-size:.9rem;font-weight:600;color:var(--muted);letter-spacing:.04em;text-transform:uppercase;margin-bottom:.4rem}
.seats-num{font-family:var(--display);font-size:4.5rem;font-weight:700;line-height:1;color:var(--gold);margin:0 0 .5rem}
.seats-num small{font-family:var(--body);font-size:1rem;font-weight:500;color:var(--muted)}
.seats-note{font-size:.95rem;color:var(--muted)}
.text-link{display:inline-flex;align-items:center;min-height:44px;font-weight:600}

.btn{display:inline-flex;align-items:center;justify-content:center;min-height:52px;padding:0 1.75rem;border:0;border-radius:8px;background:var(--gold);color:var(--bg);font:600 1rem var(--body);text-decoration:none;cursor:pointer;transition:background-color .25s var(--quart),transform .25s var(--quart)}
.btn:hover{background:var(--gold-hi);transform:translateY(-1px)}
.btn:active{transform:translateY(1px)}
.btn[disabled]{background:#4A4E5C;color:#B5B9C6;cursor:not-allowed;transform:none}
.btn.loading{background:var(--gold);cursor:progress}
.btn.loading::after{content:"";width:1em;height:1em;margin-left:.7rem;border:2px solid var(--bg);border-top-color:transparent;border-radius:50%;animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

/* play: steps with oversized numerals, text offset */
.play{padding-top:clamp(3rem,7vw,5rem);padding-bottom:clamp(3rem,7vw,5rem);background:var(--card)}
.steps{list-style:none;margin:2rem 0 0;padding:0;display:grid;gap:2.25rem}
.steps li{display:grid;grid-template-columns:3.5rem 1fr;gap:1rem;align-items:start}
.step-n{font-family:var(--display);font-size:3.4rem;font-weight:700;line-height:.9;color:var(--gold)}
.steps h3{margin-bottom:.35em}
.steps p{margin:0}

/* maths */
.maths{padding-top:clamp(3rem,8vw,6rem);padding-bottom:clamp(2.5rem,6vw,4rem)}
.maths-in{display:grid;gap:2.5rem}
.field{margin:0 0 1.4rem}
label{display:block;font-weight:600;margin-bottom:.45rem}
input[type=text],input[type=email],select{width:100%;min-height:48px;padding:0 .9rem;background:var(--card);color:var(--text);border:1px solid var(--line);border-radius:8px;font:400 1rem var(--body);transition:border-color .25s var(--quart)}
select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--muted) 50%),linear-gradient(135deg,var(--muted) 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 14px) 21px;background-size:6px 6px,6px 6px;background-repeat:no-repeat;padding-right:2.5rem}
input:hover,select:hover{border-color:var(--muted)}
input:focus-visible,select:focus-visible{border-color:var(--gold);outline-offset:1px}
input[aria-invalid=true]{border-color:var(--err)}
.range-row{display:flex;align-items:center;gap:1rem}
input[type=range]{flex:1;min-height:44px;accent-color:var(--gold);background:transparent}
output{font-family:var(--display);font-size:2rem;font-weight:700;color:var(--gold);min-width:4ch;text-align:right;font-variant-numeric:tabular-nums}
.ledger{width:100%;border-collapse:collapse;align-self:start}
.ledger th,.ledger td{padding:.85rem 0;border-bottom:1px solid var(--line);text-align:left;font-weight:400}
.ledger td{text-align:right;font-weight:600;font-variant-numeric:tabular-nums}
.ledger .total th,.ledger .total td{border-bottom:0;padding-top:1.2rem;font-family:var(--display);font-size:1.7rem;font-weight:700;color:var(--gold)}
.ledger tfoot td{text-align:left;font-size:.875rem;font-weight:400;color:var(--muted);padding-top:1rem;border:0}

/* need: short section */
.need{padding-top:2rem;padding-bottom:2.5rem}
.need-body{max-width:62ch;color:var(--muted)}
.need-body p{margin-bottom:.8em}

/* script */
.script{padding-top:clamp(3rem,7vw,5rem);padding-bottom:clamp(3rem,7vw,5rem);background:var(--card)}
.script-body{display:grid;gap:2rem;margin-top:1.5rem}
.say h3{color:var(--gold);font-family:var(--body);font-size:.9rem;font-weight:600;letter-spacing:.04em;text-transform:uppercase;margin-bottom:.6rem}
.line{font-family:var(--display);font-size:1.45rem;line-height:1.35;margin:0 0 .55rem}
.cue{color:var(--muted);font-size:.95rem;line-height:1.5;margin:.6rem 0 0}
.script-note{color:var(--muted);font-size:.95rem;margin:0}

.gap{padding-top:clamp(3rem,8vw,6rem);padding-bottom:clamp(3rem,8vw,6rem)}
.gap h2{max-width:20ch}

/* join */
.join{display:grid;gap:2.5rem;padding-top:clamp(3rem,7vw,5rem);padding-bottom:clamp(3rem,8vw,6rem);background:var(--card);scroll-margin-top:0}
.terms{list-style:none;margin:0 0 1.2rem;padding:0}
.terms li{padding:1rem 0;border-bottom:1px solid var(--line)}
.terms li:first-child{padding-top:0}
.terms strong{color:var(--gold)}
.hp{position:absolute;top:0;left:0;width:1px;height:1px;opacity:0;overflow:hidden;pointer-events:none}
.hp input{opacity:0;width:1px;min-height:0;height:1px;padding:0;border:0}
.err{color:var(--err);font-weight:600;margin:0 0 1rem}
.done{padding:1.5rem 0}
.done h3{font-size:2.2rem;color:var(--gold)}
.done:focus{outline:none}

.foot{padding-top:2rem;padding-bottom:2rem;color:var(--muted);font-size:.875rem}
.foot-line{max-width:70ch}
.credit{margin:0}
.credit a{display:inline-flex;align-items:center;min-height:44px;color:var(--text)}

@media (min-width:56rem){
  .hero{grid-template-columns:7fr 5fr;align-items:center;gap:4rem}
  .maths-in{grid-template-columns:5fr 6fr;gap:5rem}
  .script-body{grid-template-columns:1fr 1fr;gap:4rem}
  .script-note{grid-column:1 / -1}
  .join{grid-template-columns:5fr 6fr;gap:5rem}
  .steps li{grid-template-columns:5rem 1fr}
  .steps li:nth-child(2){margin-left:3rem}
  .steps li:nth-child(3){margin-left:6rem}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}