:root{--bg:#f7faf7;--card:#fff;--ink:#142018;--muted:#56645b;--green:#14763f;--green-dark:#0b572d;--red:#bd3030;--line:#d4e0d7;--soft:#e8f5eb;--shadow:0 18px 45px rgba(20,32,24,.10)}
*{box-sizing:border-box}body{margin:0;background:radial-gradient(circle at top left,#e7f8ec,transparent 38%),var(--bg);color:var(--ink);font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}a{color:inherit;text-decoration:none}main{min-height:calc(100vh - 118px);padding:18px}.topnav{height:68px;display:flex;align-items:center;justify-content:space-between;padding:0 20px;border-bottom:1px solid var(--line);background:rgba(255,255,255,.82);backdrop-filter:blur(14px);position:sticky;top:0;z-index:10}.brand{display:flex;align-items:center;gap:10px;font-weight:850;font-size:18px}.brand-mark{width:34px;height:34px;border-radius:12px;display:grid;place-items:center;background:linear-gradient(135deg,var(--green),#35b66a);color:#fff;box-shadow:0 8px 18px rgba(22,132,71,.25)}.navlinks{display:flex;gap:6px}.navlinks a{font-size:14px;font-weight:700;color:var(--muted);padding:10px 12px;border-radius:999px}.navlinks a:hover{background:var(--soft);color:var(--green)}.hero{max-width:1040px;margin:30px auto;display:grid;grid-template-columns:1.25fr .75fr;gap:22px;align-items:stretch}.hero-card,.sample-card,.page-card,.feature{background:rgba(255,255,255,.88);border:1px solid var(--line);border-radius:28px;box-shadow:var(--shadow)}.hero-card{padding:46px}.kicker{font-size:13px;text-transform:uppercase;letter-spacing:.12em;color:var(--green);font-weight:900;margin-bottom:12px}.hero h1{font-size:clamp(42px,7vw,74px);line-height:.9;margin:0 0 18px;letter-spacing:-.06em}.hero p{font-size:19px;line-height:1.5;color:var(--muted);max-width:620px}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}.btn,button{border:0;border-radius:16px;padding:13px 18px;font-weight:850;font-size:15px;cursor:pointer}.btn.primary,button.primary{background:var(--green);color:#fff;box-shadow:0 12px 24px rgba(22,132,71,.24)}.btn.primary:hover,button.primary:hover{background:var(--green-dark)}.btn.ghost,button.ghost{background:var(--soft);color:var(--green);border:1px solid #cce8d3}.sample-card{padding:28px;display:flex;flex-direction:column;justify-content:center;text-align:center}.target-label{font-size:13px;text-transform:uppercase;letter-spacing:.15em;color:var(--muted);font-weight:900}.target-big{font-size:80px;font-weight:950;color:var(--green);letter-spacing:-.07em}.number-row{display:flex;gap:9px;justify-content:center;flex-wrap:wrap;margin:18px 0}.number-row span,.num-pill{min-width:54px;height:54px;border-radius:18px;display:grid;place-items:center;background:var(--ink);color:#fff;font-weight:950;font-size:22px;box-shadow:0 10px 18px rgba(20,32,24,.16)}code,pre{background:#101913;color:#e9fff0;border-radius:16px;padding:12px 14px;display:block;white-space:pre-wrap}.feature-grid{max-width:1040px;margin:0 auto 40px;display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.feature{padding:22px}.feature h3{margin:0 0 8px;color:var(--green)}.feature p{margin:0;color:var(--muted);line-height:1.45}.play-shell,.page-card{max-width:720px;margin:28px auto;padding:26px}.game-head{display:flex;justify-content:space-between;gap:12px;align-items:flex-start;margin-bottom:20px}.game-head h1{margin:0;font-size:36px;letter-spacing:-.04em}.badge{display:inline-flex;border-radius:999px;background:var(--soft);color:var(--green);padding:7px 11px;font-weight:900;font-size:12px;text-transform:uppercase;letter-spacing:.06em}.target-panel{text-align:center;padding:22px;border:1px solid var(--line);border-radius:24px;background:linear-gradient(180deg,#fff,#f4fbf5);margin-bottom:18px}.target-panel .target{font-size:76px;font-weight:950;color:var(--red);letter-spacing:-.05em}.expression{width:100%;min-height:56px;border:2px solid var(--line);border-radius:18px;padding:16px;font-size:20px;font-family:"JetBrains Mono",ui-monospace,monospace;outline:none;background:#fff;color:var(--ink)}.expression:focus{border-color:var(--green);box-shadow:0 0 0 4px rgba(22,132,71,.12)}.pad{display:grid;grid-template-columns:repeat(5,1fr);gap:8px;margin:16px 0}.pad button{background:#fff;border:1px solid var(--line);font-size:18px}.pad button:hover{border-color:var(--green);color:var(--green)}.actions{display:flex;gap:10px;flex-wrap:wrap;margin:12px 0}.message{border-radius:16px;padding:14px 16px;margin-top:14px;font-weight:750}.message.ok{background:#e7f8ec;color:var(--green-dark);border:1px solid #bfe6c8}.message.bad{background:#fff0f0;color:#9c2424;border:1px solid #f0c7c7}.muted{color:var(--muted)}.small{font-size:13px;color:var(--muted)}.spinner{width:36px;height:36px;border:4px solid #d9eadc;border-top-color:var(--green);border-radius:50%;animation:spin .7s linear infinite;margin:40px auto}@keyframes spin{to{transform:rotate(360deg)}}.lb-list{display:grid;gap:10px}.lb-row{display:grid;grid-template-columns:50px 1fr auto;gap:10px;align-items:center;padding:14px;border:1px solid var(--line);border-radius:16px;background:#fff}.lb-row small{grid-column:2/4;color:var(--muted)}.stats-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.stats-grid div{background:#fff;border:1px solid var(--line);border-radius:20px;padding:20px}.stats-grid b{display:block;font-size:34px;color:var(--green)}.stats-grid span{color:var(--muted);font-weight:800}.legal-footer{text-align:center;color:var(--muted);font-size:12px;padding:24px}.legal-footer a{color:var(--green);font-weight:800}@media(max-width:760px){.topnav{align-items:flex-start;height:auto;padding:14px;gap:10px;flex-direction:column}.navlinks{overflow:auto;width:100%}.hero{grid-template-columns:1fr;margin-top:10px}.hero-card{padding:28px}.feature-grid{grid-template-columns:1fr}.pad{grid-template-columns:repeat(4,1fr)}.target-big,.target-panel .target{font-size:58px}.lb-row{grid-template-columns:42px 1fr}.lb-row strong{grid-column:2}.lb-row small{grid-column:2}.stats-grid{grid-template-columns:1fr}}

/* The Final Number step-reduction play model */
:root{--green:#14763f;--green-dark:#0b572d;--red:#bd3030;--ink:#111827;--muted:#56616f;--light:#F3F4F6;--soft:#e8f5eb;--line:#d9dee7;}
.brand-mark{position:relative;background:#fff;color:var(--green);border:3px solid var(--green);border-radius:50%;font-weight:950;box-shadow:none;overflow:visible}.brand-mark::after{content:"";position:absolute;right:-5px;top:-5px;width:12px;height:12px;border-radius:50%;background:var(--red);border:3px solid #fff;box-shadow:0 0 0 3px var(--green)}
.brand b{color:var(--green)}
.game-head h1 span{color:var(--red)}
.compact-target{padding:16px;margin-bottom:14px}.compact-target .target{font-size:62px}.board-card{background:#fff;border:1px solid var(--line);border-radius:24px;box-shadow:var(--shadow);padding:18px;margin-bottom:16px}.board-top{display:flex;justify-content:space-between;align-items:center;color:var(--ink);margin-bottom:14px}.board-top span{color:var(--muted);font-size:13px;font-weight:800}.tile-board{display:grid;grid-template-columns:repeat(auto-fit,minmax(74px,1fr));gap:10px;margin-bottom:16px}.number-tile{min-height:74px;border-radius:20px;border:2px solid var(--line);background:#fff;color:var(--ink);font-size:26px;font-weight:950;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;box-shadow:0 10px 20px rgba(17,24,39,.08);transition:transform .14s ease,border-color .14s ease,opacity .14s ease}.number-tile.active:hover{transform:translateY(-2px);border-color:var(--green)}.number-tile.selected{border-color:var(--green);background:linear-gradient(180deg,#fff,#ecfdf3);box-shadow:0 0 0 4px rgba(34,197,94,.15)}.number-tile.spent{opacity:.34;background:var(--light);box-shadow:none;color:var(--muted);text-decoration:line-through}.number-tile small{text-decoration:none;font-size:10px;text-transform:uppercase;letter-spacing:.12em}.operator-pad{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin:12px 0}.operator-pad .op-btn{font-size:26px;border-radius:18px;background:var(--ink);color:#fff}.operator-pad .op-btn:nth-child(1){background:var(--green)}.operator-pad .op-btn:nth-child(2),.operator-pad .op-btn:nth-child(4){background:var(--red)}.operator-pad .op-btn:hover{filter:brightness(.95);transform:translateY(-1px)}.moves-log{background:rgba(255,255,255,.72);border:1px dashed var(--line);border-radius:20px;padding:14px;margin-bottom:12px}.moves-log h3{margin:0 0 10px}.move-row{display:grid;grid-template-columns:34px 1fr;gap:10px;align-items:center;padding:10px 0;border-top:1px solid var(--line)}.move-row:first-of-type{border-top:0}.move-row b{width:28px;height:28px;border-radius:999px;background:var(--soft);color:var(--green-dark);display:grid;place-items:center}.centre{text-align:center}.timer-badge{font-size:14px;background:#fff;color:var(--ink);border:1px solid var(--line)}
@media(max-width:520px){.tile-board{grid-template-columns:repeat(3,1fr)}.number-tile{min-height:68px}.operator-pad{gap:8px}.compact-target .target{font-size:52px}}

/* Equation-builder UX update */
.equation-panel{border:1px solid var(--line);border-radius:18px;background:linear-gradient(180deg,#fff,#f9fafb);padding:14px 16px;margin:12px 0 14px}.equation-label{font-size:11px;text-transform:uppercase;letter-spacing:.12em;color:var(--muted);font-weight:900;margin-bottom:6px}.equation-line{min-height:42px;display:flex;align-items:center;gap:10px;font-family:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,"Liberation Mono",monospace;font-size:24px;font-weight:900;color:var(--ink);white-space:nowrap;overflow-x:auto}.equation-line.empty{color:var(--muted);font-size:16px;font-weight:800}.equation-line span{display:inline-flex;align-items:baseline;gap:6px}.equation-line small{font-family:Inter,system-ui,sans-serif;font-size:10px;text-transform:uppercase;letter-spacing:.1em;color:var(--green-dark)}.equation-line b{font-family:Inter,system-ui,sans-serif;font-size:11px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted)}.order-hint{margin:5px 0 0;color:var(--muted);font-size:11px;font-weight:700}.equation-pad{grid-template-columns:repeat(4,1fr)}.number-tile.selected{position:relative}.number-tile.selected::after{content:attr(data-order);position:absolute;right:5px;top:5px;width:20px;height:20px;border-radius:50%;display:grid;place-items:center;background:var(--green-dark);color:#fff;font-size:11px;font-weight:950}@media(max-width:520px){.equation-pad{grid-template-columns:repeat(4,1fr)}.equation-line{font-size:21px}.operator-pad .op-btn{font-size:23px;padding-left:0;padding-right:0}}

/* Compact mobile-first play screen: target + board should fit in one view */
.compact-game-head{align-items:center;margin-bottom:10px}.compact-game-head h1{font-size:clamp(34px,9vw,58px);line-height:.88;margin:8px 0 5px}.compact-game-head .badge{padding:6px 10px}.compact-game-head .timer-badge{align-self:center;min-width:104px;margin-top:30px;padding:12px 18px;font-size:26px;line-height:1;justify-content:center;text-align:center}.game-title-block{min-width:0}.playing-as{display:block;color:var(--muted);font-size:11px;font-weight:800}.compact-board{padding:14px;border-radius:22px;margin-bottom:10px}.compact-board .equation-panel{margin:0 0 12px;padding:10px 12px;border-radius:16px}.compact-board .board-top{margin-bottom:8px}.compact-board .tile-board{grid-template-columns:repeat(5,minmax(0,1fr));gap:8px;margin-bottom:12px}.compact-board .number-tile{min-width:0;min-height:62px;border-radius:16px;font-size:24px}.compact-board .operator-pad{gap:8px;margin:8px 0 10px}.compact-board .operator-pad .op-btn{min-height:48px;border-radius:14px;padding:8px 0}.compact-actions{display:grid;grid-template-columns:repeat(3,1fr);gap:7px;margin:0}.compact-actions button{padding:10px 6px;border-radius:13px;font-size:12px}.compact-actions .subtle{opacity:.72}.compact-moves{padding:10px 12px;border-radius:16px;margin-bottom:8px}.compact-moves h3{font-size:14px}.compact-moves .move-row{padding:6px 0}.compact-moves .small{font-size:12px}.play-shell{transition:max-width .2s ease}.message{margin-top:8px;padding:10px 12px;border-radius:14px}
.hint-btn{color:#704500!important;background:#fff4d6!important;border-color:#d9ad3f!important}.hint-card{display:grid;gap:3px;margin:10px 0;padding:12px 14px;border:1px solid #d9ad3f;border-radius:16px;background:#fff9e8;color:#563500}.hint-card strong{font-size:11px;text-transform:uppercase;letter-spacing:.12em}.hint-card span{font-size:18px;font-weight:950}.hint-card small{color:#684f19;font-weight:700}
.play-status{position:sticky;top:8px;z-index:8;margin:0 0 10px;padding:10px 13px;border:1px solid #cbd8ce;border-radius:16px;background:rgba(255,255,255,.96);box-shadow:0 10px 28px rgba(17,24,39,.12);backdrop-filter:blur(12px)}.progress-head{display:flex;justify-content:space-between;align-items:center;gap:12px;font-size:11px;text-transform:uppercase;letter-spacing:.08em}.progress-head strong{color:var(--green-dark)}.progress-head span{color:var(--muted);font-weight:800}.progress-dots{display:grid;grid-template-columns:repeat(4,1fr);gap:5px;margin:7px 0}.progress-dots i{height:4px;border-radius:99px;background:#dce3de}.progress-dots i.done{background:var(--green)}.progress-dots i.current{background:#9fcfac}.play-status #game-message{min-height:20px;font-size:14px;font-weight:800}.play-status .message{margin:0;padding:7px 9px}.status-idle{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:var(--ink)}.route-details{margin-top:10px;border:1px solid var(--line);border-radius:16px;background:#fbfdfb;overflow:hidden}.route-details summary{cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 12px;font-size:13px;font-weight:900;list-style:none}.route-details summary::-webkit-details-marker{display:none}.route-details summary::before{content:"›";color:var(--green);font-size:20px;line-height:1;transition:transform .15s ease}.route-details[open] summary::before{transform:rotate(90deg)}.route-details summary span{margin-left:auto;color:var(--muted);font-size:11px}.route-details .moves-log{margin:0;border:0;border-top:1px solid var(--line);border-radius:0;box-shadow:none}
.play-rule{margin:0 0 9px;padding:0 3px;color:var(--muted);font-size:12px;font-weight:750;text-align:center}
.game-board-locked{opacity:.32;filter:grayscale(.35);pointer-events:none;transition:opacity .2s ease,filter .2s ease}.completion-status{display:flex;align-items:center;justify-content:space-between;gap:12px}.completion-status span{display:grid;gap:2px}.completion-status strong{color:var(--green-dark)}.completion-actions{display:flex;align-items:center;gap:7px;flex:none}.result-link{min-height:36px;padding:8px 12px;border-radius:12px;font-size:12px;text-align:center;display:inline-flex;align-items:center;justify-content:center;line-height:1.1}.share-result{background:#fff;color:var(--green-dark);border:1px solid #b9d8c1}button.share-hero{background:linear-gradient(110deg,var(--green) 0%,var(--green) 34%,#32bd6b 50%,var(--green) 66%,var(--green) 100%);background-size:220% 100%;border-color:var(--green);color:#fff;box-shadow:0 12px 24px rgba(20,118,63,.18);font-weight:900;animation:share-shimmer 1.8s linear infinite}button.share-hero:hover{background:var(--green-dark);color:#fff}button.share-hero:focus-visible{outline:3px solid rgba(20,118,63,.24);outline-offset:2px}.player-gate{max-width:520px}.player-gate h1{margin:0 0 10px;font-size:34px}.player-gate>p{margin:0 0 24px}.player-gate .profile-form button{width:100%;margin-top:4px}.player-gate .profile-error{min-height:18px;margin:0}
@media(max-width:520px){.completion-status{align-items:stretch;flex-direction:column}.completion-actions{display:grid;grid-template-columns:1fr 1fr}.player-gate h1{font-size:30px}}

/* Already played state */
.already-played-card{text-align:left}.already-played-card h1{margin:14px 0 8px;font-size:clamp(34px,7vw,54px);line-height:.95}.already-played-score{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin:24px 0}.already-played-score div,.next-puzzle{border:1px solid var(--line);border-radius:16px;background:#fff;padding:16px}.already-played-score b{display:block;color:var(--green);font-size:32px;line-height:1}.already-played-score span,.next-puzzle span{display:block;margin-top:5px;color:var(--muted);font-size:12px;font-weight:850;text-transform:uppercase;letter-spacing:.06em}.next-puzzle{display:flex;align-items:center;justify-content:space-between;gap:12px;background:var(--soft);border-color:#bfe6c8}.next-puzzle span{margin:0;color:var(--green-dark)}.next-puzzle strong{font-size:30px;color:var(--green-dark);font-variant-numeric:tabular-nums}.already-played-actions{margin-top:18px;display:grid;grid-template-columns:auto minmax(170px,1fr) auto;align-items:center;gap:8px}.already-played-actions a[href="/stats.php"]{justify-self:end;background:transparent;border-color:transparent;color:var(--muted);box-shadow:none}
@keyframes share-shimmer{from{background-position:220% 0}to{background-position:-20% 0}}
@media(prefers-reduced-motion:reduce){button.share-hero{animation:none}}
@media(max-width:520px){.already-played-score{grid-template-columns:1fr}.next-puzzle{align-items:flex-start;flex-direction:column}.next-puzzle strong{font-size:28px}.already-played-actions{grid-template-columns:1fr 1fr}.already-played-actions .share-hero{grid-column:1 / -1;grid-row:1}.already-played-actions a[href="/leaderboard.php"]{grid-column:1}.already-played-actions a[href="/stats.php"]{grid-column:2;justify-self:stretch;background:transparent;border-color:#dce5df}}
@media(max-width:760px){body{background:linear-gradient(180deg,#f7fbf8,#f2fbf4)}main{padding:10px 12px;min-height:auto}.topnav{position:relative;height:auto;padding:10px 12px;gap:8px}.brand{font-size:18px;white-space:nowrap}.brand-mark{width:36px;height:36px;font-size:15px}.navlinks{gap:8px;padding-bottom:2px}.navlinks a{font-size:13px;padding:8px 8px;white-space:nowrap}.play-shell{max-width:430px;margin:8px auto;padding:0}.compact-game-head{gap:8px}.compact-game-head h1{font-size:42px;letter-spacing:-.06em}.compact-game-head .timer-badge{min-width:96px;margin-top:34px;padding:11px 14px;font-size:24px}.compact-board{box-shadow:0 10px 28px rgba(17,24,39,.08)}.equation-label{font-size:10px}.equation-line{min-height:34px;font-size:20px}.equation-line.empty{font-size:14px}.compact-board .number-tile{min-height:58px;font-size:22px;border-width:2px;box-shadow:0 6px 14px rgba(17,24,39,.06)}.number-tile.selected::after{display:grid}.number-tile small{font-size:8px}.compact-board .operator-pad .op-btn{font-size:22px;min-height:44px}.legal-footer{display:none}}
@media(max-width:390px){.brand{font-size:16px}.brand-mark{width:32px;height:32px;font-size:13px}.navlinks a{font-size:12px;padding:7px 6px}.compact-game-head h1{font-size:38px}.compact-board{padding:12px}.compact-board .tile-board{gap:6px}.compact-board .number-tile{min-height:52px;font-size:20px;border-radius:14px}.compact-board .operator-pad{gap:6px}.compact-board .operator-pad .op-btn{min-height:40px;font-size:20px}.compact-actions button{font-size:11px;padding:8px 4px}.equation-line{font-size:18px}.compact-moves{display:none}}
@media(max-height:760px) and (max-width:760px){.topnav{padding-top:8px;padding-bottom:6px}.navlinks a{padding-top:6px;padding-bottom:6px}.compact-game-head h1{font-size:36px}.compact-game-head .badge{font-size:10px}.compact-board .equation-panel{padding:8px 10px;margin-bottom:9px}.compact-board .number-tile{min-height:50px}.compact-board .operator-pad .op-btn{min-height:40px}.compact-moves{display:none}}

/* Compact board refinement: keep active numbers visible in a stable two-row board */
.compact-board .tile-board{
  grid-template-columns:repeat(5,minmax(0,1fr));
  align-items:start;
  gap:8px;
  margin-bottom:10px;
}
.compact-board .tile-board::after{
  content:"";
  grid-column:1 / -1;
  height:0;
}
.compact-board .moves-log{
  margin-top:10px;
  margin-bottom:0;
  background:#fbfdfb;
  border-style:solid;
}
.compact-board .moves-log h3{
  display:flex;
  align-items:center;
  justify-content:space-between;
  margin-bottom:6px;
}
.compact-board .moves-log h3::after{
  content:"working sums";
  font-size:10px;
  text-transform:uppercase;
  letter-spacing:.12em;
  color:var(--muted);
}
.compact-board .move-row{
  grid-template-columns:26px 1fr;
  gap:8px;
  font-size:13px;
}
.compact-board .move-row b{
  width:22px;
  height:22px;
  font-size:12px;
}
@media(max-width:760px){
  .compact-board .tile-board{grid-template-columns:repeat(5,minmax(0,1fr));gap:6px;}
  .compact-board .number-tile{min-height:50px;font-size:20px;border-radius:14px;}
  .compact-board .moves-log{display:block;max-height:112px;overflow:auto;padding:8px 10px;}
  .compact-board .moves-log h3{font-size:13px;margin:0 0 4px;}
  .compact-board .move-row{padding:5px 0;font-size:12px;}
  .compact-board .moves-log .small{font-size:11px;}
}
@media(max-width:390px){
  .compact-board .tile-board{gap:5px;}
  .compact-board .number-tile{min-height:46px;font-size:18px;}
  .compact-board .moves-log{display:block;max-height:96px;}
}
@media(max-height:760px) and (max-width:760px){
  .compact-board .tile-board{margin-bottom:8px;}
  .compact-board .moves-log{display:block;max-height:84px;padding:7px 9px;}
  .compact-board .move-row{padding:4px 0;}
}

/* TFN v4 branding/nav/legal/home refinements */
.brand.wordmark{font-weight:950;letter-spacing:-.055em;font-size:24px;color:#000;gap:0;white-space:nowrap}.brand.wordmark span{color:var(--green)}
.topnav{display:grid;grid-template-columns:auto 1fr auto;gap:18px;align-items:center}.primary-nav{justify-content:flex-start}.hamburger-menu{position:relative;justify-self:end}.hamburger-menu summary{list-style:none;width:44px;height:44px;border:1px solid var(--line);border-radius:14px;background:#fff;display:grid;place-content:center;gap:4px;cursor:pointer;box-shadow:0 8px 18px rgba(20,32,24,.08)}.hamburger-menu summary::-webkit-details-marker{display:none}.hamburger-menu summary span{display:block;width:19px;height:2px;border-radius:99px;background:var(--ink)}.hamburger-menu[open] summary{border-color:var(--green);box-shadow:0 0 0 4px rgba(22,132,71,.12)}.menu-panel{position:absolute;right:0;top:52px;min-width:220px;background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow);padding:8px;z-index:50}.menu-panel a{display:block;padding:12px 13px;border-radius:14px;color:var(--ink);font-weight:800}.menu-panel a:hover{background:var(--soft);color:var(--green)}.menu-panel hr{height:1px;border:0;background:var(--line);margin:7px 8px}
.sample-sums{display:grid;gap:8px;text-align:left;background:#101913;color:#e9fff0;border-radius:16px;padding:14px;font-family:"JetBrains Mono",ui-monospace,monospace;font-weight:850}.sample-sums span{display:block}.legal-copy{line-height:1.65}.legal-copy h1{margin-top:0}.legal-copy h2{margin:24px 0 6px;color:var(--green);font-size:20px}.legal-copy a{color:var(--green);font-weight:850;text-decoration:underline;text-underline-offset:3px}.compact-actions button:disabled,.operator-pad button:disabled{opacity:.45;cursor:not-allowed}.page-card h1{letter-spacing:-.04em}
@media(max-width:760px){.topnav{grid-template-columns:1fr auto;align-items:center}.primary-nav{grid-column:1 / -1;width:100%;order:2}.hamburger-menu{grid-column:2;grid-row:1}.brand.wordmark{font-size:22px}.menu-panel{right:0}.navlinks.primary-nav{overflow:visible}.legal-footer{display:block}.sample-sums{font-size:13px}}

/* CampArcade footer branding */
.footer-brand{margin-bottom:7px;font-weight:800}
.rainbow-text{background:linear-gradient(90deg,#f00,#f80,#ff0,#0c0,#06f,#80f,#f00);background-size:200% auto;-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;animation:rainbow-shift 3s linear infinite;font-weight:800}
.footer-links{display:flex;justify-content:center;align-items:center;flex-wrap:wrap;gap:0}
.footer-links a{color:var(--green);font-weight:800}
.footer-links a:not(:last-child)::after{content:"·";display:inline-block;margin:0 7px;color:var(--muted);font-weight:400}
@keyframes rainbow-shift{to{background-position:200% center}}
@media(prefers-reduced-motion:reduce){.rainbow-text{animation:none}}

/* Leaderboard period controls */
.leaderboard-periods{display:flex;gap:8px;flex-wrap:wrap;margin:14px 0 22px}.period-pill{min-height:40px;padding:9px 16px;border:1px solid var(--line);border-radius:999px;background:#fff;color:var(--muted);box-shadow:none;font-size:13px}.period-pill:hover{border-color:var(--green);color:var(--green)}.period-pill.active{border-color:var(--green);background:var(--green);color:#fff}.period-pill:focus-visible{outline:3px solid rgba(20,118,63,.22);outline-offset:2px}.leaderboard-heading{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin-bottom:14px}.leaderboard-heading h2{margin:0;font-size:20px}.leaderboard-heading span{color:var(--muted);font-size:12px;font-weight:800}.leaderboard-empty{margin:0;padding:22px;border:1px dashed var(--line);border-radius:16px;background:#fbfdfb;color:var(--muted);text-align:center;font-weight:750}
.you-pill{display:inline-flex;align-items:center;margin-left:8px;padding:3px 7px;border-radius:999px;background:var(--green);color:#fff;font-size:10px;font-style:normal;font-weight:950;letter-spacing:.06em;text-transform:uppercase;vertical-align:middle}
.lb-share-row{display:block;margin:-2px 0 2px}.leaderboard-share{width:100%;min-height:48px;border-radius:16px;font-size:13px}
@media(max-width:520px){.leaderboard-periods{display:grid;grid-template-columns:repeat(3,1fr);gap:6px}.period-pill{padding:9px 6px;font-size:12px;white-space:nowrap}.leaderboard-heading{align-items:flex-start;flex-direction:column;gap:3px}}

/* Player profile */
.profile-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:18px;margin-bottom:24px}.profile-heading h1{margin:0 0 6px}.profile-heading p{margin:0}.profile-status{flex:none;border-radius:999px;background:var(--soft);color:var(--green-dark);padding:7px 11px;font-size:11px;font-weight:900;text-transform:uppercase;letter-spacing:.06em}.profile-form{display:grid;gap:18px}.profile-form label{display:grid;gap:7px}.profile-form label>span{font-size:13px;font-weight:900;color:var(--ink)}.profile-form input{width:100%;min-height:48px;border:1px solid var(--line);border-radius:12px;background:#fff;color:var(--ink);padding:11px 13px;font:inherit;outline:none}.profile-form input:focus{border-color:var(--green);box-shadow:0 0 0 4px rgba(20,118,63,.12)}.profile-form input[readonly]{background:#f5f7f5;color:var(--muted)}.profile-form small{color:var(--muted);line-height:1.4}.profile-actions{display:flex;align-items:center;gap:14px;min-height:48px}.profile-actions button:disabled{opacity:.55;cursor:wait}.profile-success{color:var(--green-dark);font-size:13px;font-weight:850}.profile-error{color:var(--red);font-size:13px;font-weight:850}
@media(max-width:520px){.profile-heading{align-items:flex-start}.profile-actions{align-items:flex-start;flex-direction:column}.profile-actions button{width:100%}}

/* How to play scoring */
.scoring-rules{margin-top:28px;padding-top:24px;border-top:1px solid var(--line)}.scoring-rules h2{margin:0 0 10px;font-size:22px}.scoring-rules p{line-height:1.55}.scoring-rules li{margin:8px 0;line-height:1.45}.score-formula{display:flex;align-items:baseline;gap:8px;flex-wrap:wrap;margin:16px 0;padding:16px;border:1px solid #bfe6c8;border-radius:14px;background:var(--soft);color:var(--green-dark)}.score-formula strong{font-size:20px}.score-formula span{font-weight:750}

/* Homepage launch refresh */
.hero h1{line-height:1.02;letter-spacing:0}
.sample-target{padding:18px;border:1px solid var(--line);border-radius:24px;background:linear-gradient(180deg,#fff,#f4fbf5)}
.sample-card .target-big{color:var(--red);letter-spacing:0}
.sample-number-row{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:8px}
.sample-number-row span{min-width:0;height:64px;border-radius:18px;border:2px solid var(--line);background:#fff;color:var(--ink);font-size:24px;box-shadow:0 10px 20px rgba(17,24,39,.08)}
.feature-grid{grid-template-columns:repeat(2,1fr)}
@media(max-width:760px){.feature-grid{grid-template-columns:1fr}.sample-number-row{gap:6px}.sample-number-row span{height:58px;font-size:22px}}