:root{
  --bg:#12161c;
  --bg2:#182029;
  --card:#1e2732;
  --line:#2b3743;
  --txt:#e8eef5;
  --dim:#8ea0b3;
  --green:#2e9e63;
  --green-d:#247a4d;
  --red:#c0392b;
  --gold:#e0b341;
  --pad: env(safe-area-inset-bottom, 0px);
}

*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}

html,body{height:100%}

body{
  background:var(--bg);
  color:var(--txt);
  font:16px/1.4 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,system-ui,sans-serif;
  overscroll-behavior:none;
  -webkit-user-select:none;
  user-select:none;
}

button{font:inherit;color:inherit;background:none;border:none;cursor:pointer;touch-action:manipulation}

.hidden{display:none !important}

.screen{
  max-width:520px;
  margin:0 auto;
  padding:10px 10px calc(10px + var(--pad));
  display:flex;
  flex-direction:column;
  gap:8px;
  min-height:100%;
}

/* ---------- Setup ---------- */
.brand{text-align:center;padding:8px 0 2px}
.brand h1{font-size:26px;letter-spacing:-.5px}
.brand p{color:var(--dim);font-size:13px;margin-top:2px}

/* The game screen is vertically tight — scoreboard, pad and submit button all
   have to share one screen — so its wordmark is a small quiet line, not a
   second full-size heading. */
.brand.compact{padding:0}
.brand.compact h1{
  font-size:13px;font-weight:700;letter-spacing:1.6px;
  text-transform:uppercase;color:var(--dim);
}

.card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:12px;
  padding:11px;
  display:flex;
  flex-direction:column;
  gap:9px;
}

.field{display:flex;align-items:center;gap:12px}
.field>span{width:80px;flex:none;color:var(--dim);font-size:14px}
.field-label{color:var(--dim);font-size:14px}

input{
  flex:1;
  min-width:0;
  background:var(--bg2);
  border:1px solid var(--line);
  border-radius:10px;
  color:var(--txt);
  padding:12px;
  font-size:17px;
  -webkit-user-select:text;
  user-select:text;
}
input:focus{outline:none;border-color:var(--green)}
input[type=number]{-moz-appearance:textfield}
input::-webkit-outer-spin-button,input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}

.preset-row{display:flex;gap:8px}
.preset,.seg{
  flex:1;padding:12px 0;border-radius:10px;
  background:var(--bg2);border:1px solid var(--line);
  font-weight:600;font-size:17px;
}
.seg{font-size:15px}
.preset.is-on,.seg.is-on{background:var(--green-d);border-color:var(--green);color:#fff}

/* switch row */
.toggle{display:flex;align-items:center;gap:12px;width:100%;text-align:left;padding:2px}
.tg-label{flex:1;display:flex;flex-direction:column;gap:2px}
.tg-label b{font-size:16px;font-weight:600}
.tg-label small{color:var(--dim);font-size:12px;line-height:1.3}
.tg-switch{
  flex:none;width:50px;height:30px;border-radius:15px;
  background:var(--bg2);border:1px solid var(--line);
  position:relative;transition:background .15s,border-color .15s;
}
.tg-switch::after{
  content:'';position:absolute;top:3px;left:3px;
  width:22px;height:22px;border-radius:50%;background:var(--dim);
  transition:transform .15s,background .15s;
}
.toggle.is-on .tg-switch{background:var(--green-d);border-color:var(--green)}
.toggle.is-on .tg-switch::after{transform:translateX(20px);background:#fff}

/* rule reminders on the game screen */
.badges{display:flex;gap:6px;justify-content:center;flex-wrap:wrap}
.badge{
  font-size:10px;font-weight:700;letter-spacing:.6px;
  text-transform:uppercase;color:var(--gold);
  border:1px solid #4a3c18;background:#241f11;
  padding:2px 9px;border-radius:999px;
}
.badge.alert{
  color:#fff;background:var(--red);border-color:var(--red);
}

.primary{
  background:var(--green);color:#fff;border-radius:14px;
  font-weight:700;letter-spacing:.2px;
}
.primary:active{background:var(--green-d)}
.big{padding:13px;font-size:17px;width:100%}

.danger{
  background:var(--red);color:#fff;border-radius:14px;
  font-weight:700;letter-spacing:.2px;
}
.danger:active{background:#962d21}

.ghost{
  color:var(--dim);border:1px solid var(--line);
  border-radius:11px;padding:9px;width:100%;font-size:14px;
}
.ghost:active{background:var(--card)}

/* ---------- Scoreboard ---------- */
.scoreboard{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.scoreboard.solo{grid-template-columns:1fr}
.scoreboard.solo .pscore{font-size:42px}

.player{
  background:var(--card);
  border:2px solid var(--line);
  border-radius:12px;
  padding:5px 6px 4px;
  display:flex;flex-direction:column;align-items:center;gap:0;
  transition:border-color .15s,background .15s;
}
.player.active{border-color:var(--green);background:#1c2b23}
.pname{
  font-size:12px;color:var(--dim);font-weight:600;line-height:1.25;
  max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.player.active .pname{color:var(--green)}
.pscore{
  display:flex;align-items:baseline;justify-content:center;gap:5px;
  font-size:34px;font-weight:800;line-height:1.1;font-variant-numeric:tabular-nums;
}
/* projected score for the turn in progress */
.ppend{
  display:none;font-style:normal;font-size:17px;font-weight:700;
  color:var(--gold);white-space:nowrap;
}
.player.pending .ppend{display:inline}
.ppend.bust{color:var(--red);font-size:13px}
.ppend.checkout{color:var(--green)}

.pmeta{font-size:10px;color:var(--dim);min-height:12px;line-height:1.2}

/* ---------- Turn bar ---------- */
.turnbar{
  display:flex;align-items:center;gap:8px;
  background:var(--card);border:1px solid var(--line);
  border-radius:12px;padding:6px;
}
.darts{display:flex;gap:5px;flex:1}
.slot{
  flex:1;text-align:center;padding:6px 2px;
  background:var(--bg2);border:1px dashed var(--line);border-radius:9px;
  font-size:15px;font-weight:700;color:var(--dim);
}
.slot.filled{border-style:solid;border-color:var(--green);color:var(--txt)}
/* a dart thrown before the double-in landed — shown, but scores nothing */
.slot.void{border-color:var(--line);color:var(--dim);text-decoration:line-through}
.turntotal{
  text-align:center;min-width:56px;
  border-left:1px solid var(--line);padding-left:8px;
}
.turntotal span{display:block;font-size:20px;font-weight:800;line-height:1.1;font-variant-numeric:tabular-nums}
.turntotal small{color:var(--dim);font-size:9px}

/* ---------- Checkout suggestion ---------- */
.checkout{
  position:relative;
  display:flex;align-items:center;justify-content:center;gap:8px;
  min-height:34px;padding:4px 38px;
  border:1px solid var(--line);border-radius:11px;background:var(--card);
}
/* Absolutely positioned, so the darts stay centred and do not jump sideways
   when the back arrow appears after the first page over. The generous top/
   bottom stretch is tap area — the box itself is too short to give it. */
.co-arrow{
  position:absolute;top:3px;bottom:3px;width:34px;
  display:flex;align-items:center;justify-content:center;
  color:var(--dim);
  border:1px solid var(--line);border-radius:8px;background:var(--bg2);
}
/* block kills the inline baseline gap; pointer-events keeps the click target
   the button itself, so the delegated handler never sees a <path> */
.co-arrow svg{display:block;pointer-events:none}
.co-arrow.prev{left:3px}
.co-arrow.next{right:3px}
.co-arrow:active{background:var(--line);color:var(--txt)}
.co-label{font-size:10px;font-weight:700;letter-spacing:.7px;text-transform:uppercase;color:var(--dim)}
.co-darts{display:flex;gap:6px;flex-wrap:wrap;justify-content:center}
.co-darts b{
  font-size:16px;font-weight:800;letter-spacing:.3px;
  color:#0f1a13;background:var(--green);
  padding:3px 9px;border-radius:7px;
}
.co-none{font-size:12px;color:var(--dim)}
.co-hint{font-size:11px;color:var(--dim)}
.checkout.empty{opacity:.35}
/* the hint has to stay readable, so it opts out of the dimming above */
.checkout.empty.hint{opacity:.7}

/* ---------- Pads ---------- */
.pad{display:flex;flex-direction:column;gap:6px}

/* multiplier column + number grid, side by side */
.entry{display:flex;gap:6px;align-items:stretch}
.mult-col{display:flex;flex-direction:column;gap:6px;flex:0 0 76px}
.mult{
  flex:1;padding:0;border-radius:11px;font-weight:700;font-size:13px;
  background:var(--bg2);border:1px solid var(--line);color:var(--dim);
}
.mult.is-on{background:var(--red);border-color:var(--red);color:#fff}
.mult[data-m="1"].is-on{background:var(--green-d);border-color:var(--green);color:#fff}

.numgrid{flex:1;display:grid;grid-template-columns:repeat(5,1fr);gap:6px}

.key{
  background:var(--card);border:1px solid var(--line);border-radius:11px;
  padding:14px 0;font-size:17px;font-weight:700;text-align:center;
  font-variant-numeric:tabular-nums;
}
.key:active{background:var(--green-d);border-color:var(--green)}

.special-row{display:grid;grid-template-columns:1fr 1fr 1fr;gap:6px}
/* Bull is a real scoring key, so keep this row close to a 44px target */
.special{font-size:13px;font-weight:600;padding:14px 0;color:var(--dim)}

/* ---------- Actions ---------- */
/* the wide gap is deliberate: Submit is tapped constantly and Bust / New game
   are destructive, so they get real separation rather than a 6px neighbour */
.actions{margin-top:auto;display:flex;flex-direction:column;gap:26px;padding-top:2px}
.mini-row{display:grid;grid-template-columns:1fr 1fr 1fr;gap:6px}

/* voids the turn — a play action, so it reads apart from the two neutral ones */
.bust-btn{color:#e2857a;border-color:#5a302a;font-weight:600}
.bust-btn:active{background:#2a1a17;border-color:var(--red)}

.msg{
  text-align:center;font-size:13px;font-weight:600;color:var(--gold);
  min-height:16px;line-height:1.2;
}

/* ---------- Win overlay ---------- */
.overlay{
  position:fixed;inset:0;background:#0b0e12ee;
  display:flex;align-items:center;justify-content:center;padding:24px;z-index:10;
}
.win-card{
  background:var(--card);border:1px solid var(--line);border-radius:18px;
  padding:28px 22px;text-align:center;width:100%;max-width:360px;
  display:flex;flex-direction:column;gap:12px;
}
.trophy{font-size:52px}
.win-card h2{font-size:26px;color:var(--gold)}
.win-card p{color:var(--dim);font-size:14px}

/* confirmation sits above the win overlay, and reads as a warning */
.overlay.confirm{z-index:20}
.overlay.confirm h2{color:var(--txt);font-size:22px}
.overlay.confirm p{font-size:15px;line-height:1.45}

/* very short viewports: give up a little more */
@media (max-height:600px){
  .pscore{font-size:28px}
  .scoreboard.solo .pscore{font-size:34px}
  .key{padding:8px 0;font-size:16px}
  .checkout{min-height:30px}
  .big{padding:11px;font-size:16px}
  .brand{padding:2px 0 0}
  .brand.compact h1{font-size:11px}
}