:root{
  color-scheme:dark;
  --ink:#f6f0df;
  --muted:#aaa58f;
  --field:#151510;
  --field-deep:#0c0d0b;
  --panel:rgba(31,31,24,.86);
  --panel-strong:#28281f;
  --panel-soft:rgba(246,240,223,.055);
  --line:rgba(233,220,182,.16);
  --linen:#d7c8a0;
  --gold:#efc46c;
  --amber:#d99a42;
  --moss:#8eb18a;
  --sage:#b2c7a8;
  --danger:#ee927d;
  --tile:#dfd1ab;
  --tile-deep:#c6b684;
  --tile-ink:#27271e;
  --socket:#25261f;
  --focus:#ffd983;
  --shadow:0 26px 80px rgba(0,0,0,.4);
  --app-pad:max(8px,env(safe-area-inset-top)) max(8px,env(safe-area-inset-right)) max(8px,env(safe-area-inset-bottom)) max(8px,env(safe-area-inset-left));
  font-family:"Segoe UI",ui-rounded,system-ui,-apple-system,BlinkMacSystemFont,sans-serif;
}
*{box-sizing:border-box}
html,body{margin:0;width:100%;height:100%;overflow:hidden}
body{min-height:100dvh;color:var(--ink);background:
  radial-gradient(circle at 18% 6%,rgba(239,196,108,.11),transparent 28%),
  radial-gradient(circle at 88% 88%,rgba(142,177,138,.1),transparent 31%),
  repeating-linear-gradient(90deg,rgba(255,255,255,.012) 0 1px,transparent 1px 10px),
  linear-gradient(145deg,#11120f,var(--field-deep));}
button,select,input{font:inherit}button{color:inherit;touch-action:manipulation}button:focus-visible,select:focus-visible,input:focus-visible{outline:3px solid var(--focus);outline-offset:3px}[hidden]{display:none!important}
.app{position:relative;width:100%;height:100dvh;min-height:0;display:grid;grid-template-rows:auto minmax(0,1fr);gap:9px;padding:var(--app-pad);overflow:hidden;isolation:isolate}
.app::before,.app::after{content:"";position:absolute;z-index:-1;pointer-events:none;border:1px solid rgba(239,196,108,.08);transform:rotate(23deg)}
.app::before{width:52vw;height:1px;left:-8vw;top:29vh;box-shadow:0 21px rgba(239,196,108,.035),0 42px rgba(239,196,108,.025)}
.app::after{width:1px;height:58vh;right:12vw;bottom:-9vh;box-shadow:21px 0 rgba(142,177,138,.035),42px 0 rgba(142,177,138,.025)}
.topbar{min-height:52px;display:flex;align-items:center;justify-content:space-between;gap:12px;max-width:1420px;width:100%;margin:0 auto;padding:0 3px}
.brand{display:flex;align-items:center;gap:10px;min-width:0}.brand>div{display:grid;gap:1px}.brand-kicker{font-size:9px;letter-spacing:.17em;text-transform:uppercase;color:var(--muted);font-weight:850;white-space:nowrap}.brand strong{font-size:clamp(21px,2.4vw,30px);line-height:1;letter-spacing:-.055em;white-space:nowrap}.brand em{font-style:normal;color:var(--gold)}
.brand-mark{position:relative;width:42px;height:42px;border:1px solid rgba(239,196,108,.28);border-radius:14px;background:linear-gradient(145deg,rgba(239,196,108,.08),rgba(142,177,138,.06));display:block;box-shadow:inset 0 1px rgba(255,255,255,.06)}.brand-mark i{position:absolute;left:7px;right:7px;height:1px;background:var(--gold);opacity:.65}.brand-mark i:nth-child(1){top:12px}.brand-mark i:nth-child(2){top:20px}.brand-mark i:nth-child(3){top:28px}.brand-mark::after{content:"10";position:absolute;right:7px;top:9px;font-size:10px;font-weight:950;color:var(--linen);background:var(--field-deep);padding:3px;border-radius:5px}
.header-actions{display:flex;align-items:center;gap:6px}.icon-button{min-width:44px;height:44px;border:1px solid var(--line);border-radius:13px;background:var(--panel-soft);display:inline-grid;place-items:center;cursor:pointer;font-weight:900;font-size:18px;box-shadow:inset 0 1px rgba(255,255,255,.05);transition:transform .16s ease,background .16s ease,border-color .16s ease}.icon-button:hover{transform:translateY(-1px);background:rgba(239,196,108,.08);border-color:rgba(239,196,108,.33)}.help-button{grid-template-columns:auto auto;gap:7px;padding:0 12px}.help-button strong{font-size:11px}
.workspace{min-width:0;min-height:0;width:100%;max-width:1420px;margin:0 auto;display:grid;grid-template-columns:minmax(252px,330px) minmax(0,1fr);gap:clamp(9px,1.7vw,22px)}
.info-panel,.play-panel{min-width:0;min-height:0;border:1px solid var(--line);background:var(--panel);box-shadow:var(--shadow);backdrop-filter:blur(14px)}
.info-panel{border-radius:25px;padding:clamp(14px,1.7vw,24px);display:flex;flex-direction:column;gap:clamp(10px,1.5vh,17px);overflow:hidden}
.intro-copy{display:grid;gap:7px}.eyebrow{display:flex;align-items:center;gap:7px;color:var(--moss);font-size:10px;letter-spacing:.14em;text-transform:uppercase;font-weight:900}.eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--gold);box-shadow:0 0 10px rgba(239,196,108,.6)}.intro-copy h1{margin:0;max-width:8.6em;font-size:clamp(30px,3.2vw,48px);line-height:.96;letter-spacing:-.058em}.intro-copy h1 span{display:block;color:var(--gold)}.intro-copy p{margin:0;color:var(--muted);font-size:clamp(11px,1vw,14px);line-height:1.52;max-width:32em}
.mode-strip{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:6px}.mode-strip button{min-width:0;min-height:52px;border:1px solid var(--line);border-radius:14px;background:var(--panel-soft);padding:8px 10px;text-align:left;display:grid;gap:2px;cursor:pointer}.mode-strip button[aria-pressed="true"]{border-color:rgba(239,196,108,.55);background:rgba(239,196,108,.11);box-shadow:inset 0 0 0 1px rgba(239,196,108,.12)}.mode-strip strong{font-size:12px}.mode-strip small{font-size:9px;color:var(--muted)}
.hud{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:6px}.hud>div{min-width:0;padding:10px;border:1px solid rgba(233,220,182,.11);border-radius:13px;background:rgba(255,255,255,.025);display:grid;gap:3px}.hud span{font-size:8px;text-transform:uppercase;letter-spacing:.09em;color:var(--muted);font-weight:850;white-space:nowrap}.hud strong{font-size:clamp(15px,1.5vw,20px);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.rule-card{display:grid;gap:6px;border:1px solid var(--line);border-radius:15px;padding:9px;background:rgba(13,14,11,.38)}.rule-card>div{display:grid;grid-template-columns:38px minmax(0,1fr);align-items:center;gap:8px}.rule-card b{width:38px;height:38px;border:1px solid rgba(239,196,108,.25);border-radius:11px;display:grid;place-items:center;color:var(--gold);font-size:13px;background:rgba(239,196,108,.06)}.rule-card span{display:grid;gap:1px}.rule-card strong{font-size:11px}.rule-card small{font-size:9px;color:var(--muted)}.profile-note{margin:auto 0 0;color:var(--muted);font-size:9px;letter-spacing:.1em;text-transform:uppercase;font-weight:800}
.play-panel{position:relative;border-radius:28px;padding:clamp(10px,1.5vw,18px);display:grid;grid-template-rows:auto minmax(0,1fr) auto auto;gap:7px;overflow:hidden}.play-panel::before{content:"";position:absolute;inset:0;pointer-events:none;background:radial-gradient(circle at 50% 45%,rgba(239,196,108,.055),transparent 52%)}
.board-header{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:10px;min-height:34px;padding:0 4px}.board-header>div{display:flex;align-items:baseline;gap:7px}.board-header span{font-size:9px;letter-spacing:.11em;text-transform:uppercase;color:var(--moss);font-weight:900}.board-header strong{font-size:14px}.assist-chip{padding:5px 8px;border:1px solid rgba(142,177,138,.4);border-radius:999px;background:rgba(142,177,138,.09);color:var(--sage)!important;letter-spacing:.04em!important;text-transform:none!important;font-size:9px!important}
.board-shell{position:relative;z-index:1;align-self:center;justify-self:center;width:min(100%,640px,calc(100dvh - 195px));aspect-ratio:1;border-radius:25px;padding:clamp(6px,1vw,11px);background:linear-gradient(145deg,#202019,#12130f);border:1px solid rgba(239,196,108,.19);box-shadow:0 24px 70px rgba(0,0,0,.34),inset 0 1px rgba(255,255,255,.055);overflow:hidden}
.number-grid{position:relative;z-index:2;width:100%;height:100%;display:grid;grid-template-columns:repeat(6,minmax(0,1fr));grid-template-rows:repeat(6,minmax(0,1fr));gap:clamp(4px,.72vw,9px)}
.number-cell{position:relative;min-width:0;min-height:44px;padding:0;border:1px solid rgba(255,255,255,.16);border-radius:clamp(9px,1.1vw,15px);background:linear-gradient(145deg,var(--tile),var(--tile-deep));color:var(--tile-ink);font-size:clamp(18px,4.3vmin,38px);font-weight:900;line-height:1;cursor:pointer;box-shadow:inset 0 1px rgba(255,255,255,.45),0 5px 12px rgba(0,0,0,.22);transition:transform .17s ease,box-shadow .17s ease,background .17s ease,opacity .17s ease}.number-cell:not([aria-disabled="true"]):hover{transform:translateY(-1px);box-shadow:inset 0 1px rgba(255,255,255,.48),0 7px 17px rgba(0,0,0,.3)}.number-cell[aria-disabled="true"]{cursor:default;background:radial-gradient(circle,rgba(239,196,108,.08) 0 18%,transparent 19%),var(--socket);border:1px dashed rgba(233,220,182,.15);box-shadow:inset 0 0 13px rgba(0,0,0,.32);color:transparent}.number-cell[aria-disabled="true"]::after{content:"";width:8px;height:8px;border-radius:50%;border:1px solid rgba(233,220,182,.18);position:absolute;left:50%;top:50%;transform:translate(-50%,-50%)}
.number-cell.is-selected{transform:translateY(-1px);border-color:var(--gold);box-shadow:inset 0 0 0 2px rgba(92,62,11,.18),0 0 0 2px rgba(239,196,108,.28),0 7px 18px rgba(0,0,0,.28)}.number-cell.is-selected::before{content:"ANCHOR";position:absolute;left:50%;bottom:4px;transform:translateX(-50%);font-size:clamp(5px,.65vw,8px);letter-spacing:.08em;color:#6b4b15}.number-cell.is-hinted{border-color:var(--moss);box-shadow:0 0 0 3px rgba(142,177,138,.3),0 0 22px rgba(142,177,138,.24)}.number-cell.is-hinted::before{content:"HINT";position:absolute;left:50%;top:4px;transform:translateX(-50%);font-size:clamp(5px,.65vw,8px);letter-spacing:.08em;color:#385836}.number-cell.is-row-cue:not([aria-disabled="true"]),.number-cell.is-column-cue:not([aria-disabled="true"]){background:linear-gradient(145deg,#ead8aa,#c7bd8d)}.number-cell.just-cleared{animation:socket-settle .34s ease both}
@keyframes socket-settle{0%{transform:scale(1);opacity:1}45%{transform:scale(.9);box-shadow:0 0 24px rgba(239,196,108,.45)}100%{transform:scale(1);opacity:1}}
.thread-layer{position:absolute;inset:clamp(6px,1vw,11px);z-index:3;pointer-events:none;overflow:hidden;border-radius:18px}.thread-line{position:absolute;border-radius:999px;background:var(--gold);box-shadow:0 0 10px rgba(239,196,108,.75);opacity:.88}.thread-line.hint{background:var(--moss);box-shadow:0 0 10px rgba(142,177,138,.72)}.thread-line.horizontal{height:3px;transform:translateY(-50%)}.thread-line.vertical{width:3px;transform:translateX(-50%)}
.board-actions{position:relative;z-index:1;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:7px;width:min(100%,640px);justify-self:center}.board-actions:has(#nextBoardButton:not([hidden])){grid-template-columns:minmax(0,1fr)}.board-actions button{min-width:0;min-height:46px;border:1px solid var(--line);border-radius:13px;background:var(--panel-soft);display:flex;align-items:center;justify-content:center;gap:7px;cursor:pointer;font-size:11px}.board-actions button:hover:not(:disabled){background:rgba(239,196,108,.08);border-color:rgba(239,196,108,.3)}.board-actions button:disabled{opacity:.42;cursor:default}.next-board-button{background:var(--gold)!important;color:#2a220f!important;border-color:transparent!important;font-weight:900}.next-board-button span{color:#2a220f!important}.board-actions button.is-attention{border-color:var(--danger);box-shadow:0 0 0 2px rgba(238,146,125,.16)}.board-actions span{font-size:17px;color:var(--gold)}
.feedback-zone{position:relative;z-index:1;min-height:40px;text-align:center;display:grid;align-content:center;gap:2px}.status-message,.control-hint{margin:0}.status-message{font-size:clamp(10px,1vw,13px);font-weight:800}.status-message.success{color:var(--sage)}.status-message.error{color:var(--danger)}.status-message.neutral{color:var(--gold)}.control-hint{font-size:8px;color:var(--muted)}.control-hint span{border:1px solid var(--line);border-radius:5px;padding:1px 4px;margin-right:3px;letter-spacing:1px;font-weight:900}
.app-dialog{width:min(92vw,640px);max-height:min(88dvh,780px);padding:0;border:0;border-radius:25px;background:transparent;color:var(--ink);overflow:visible}.app-dialog::backdrop{background:rgba(4,5,4,.72);backdrop-filter:blur(7px)}.dialog-card{max-height:min(88dvh,780px);display:grid;grid-template-rows:auto minmax(0,1fr) auto;background:linear-gradient(145deg,#2a2a20,#171812);border:1px solid rgba(239,196,108,.22);border-radius:25px;box-shadow:0 34px 90px rgba(0,0,0,.55);overflow:hidden}.dialog-header{display:flex;align-items:center;justify-content:space-between;padding:18px 20px 13px;border-bottom:1px solid var(--line)}.dialog-header>div{display:grid;gap:2px}.dialog-kicker{font-size:9px;letter-spacing:.15em;text-transform:uppercase;color:var(--moss);font-weight:900}.dialog-header h2{margin:0;font-size:clamp(24px,4vw,36px);letter-spacing:-.045em}.dialog-close{width:44px;height:44px;border:1px solid var(--line);border-radius:13px;background:var(--panel-soft);font-size:25px;cursor:pointer}.dialog-content{padding:17px 20px;overflow:auto;color:var(--muted);font-size:13px;line-height:1.5}.dialog-content h3{margin:16px 0 7px;color:var(--ink);font-size:13px}.dialog-content p{margin:0 0 11px}.dialog-actions{display:flex;justify-content:flex-end;gap:8px;padding:13px 20px 18px;border-top:1px solid var(--line)}.dialog-actions button{min-width:108px;min-height:44px;border:1px solid var(--line);border-radius:12px;background:var(--panel-soft);padding:0 14px;font-weight:850;font-size:11px;cursor:pointer}.dialog-actions button.primary{background:var(--gold);color:#2a220f;border-color:transparent}.dialog-actions button.danger{background:rgba(238,146,125,.13);border-color:rgba(238,146,125,.48)}
.tutorial-lead{font-size:14px;color:var(--ink)}.tutorial-grid{display:grid;gap:8px;margin:13px 0}.tutorial-step{display:grid;grid-template-columns:42px minmax(0,1fr);gap:10px;align-items:center;border:1px solid var(--line);border-radius:14px;padding:10px;background:var(--panel-soft)}.tutorial-step>b{width:42px;height:42px;border-radius:11px;display:grid;place-items:center;background:rgba(239,196,108,.09);color:var(--gold);font-size:16px}.tutorial-step>div{display:grid;gap:3px}.tutorial-step strong{color:var(--ink);font-size:12px}.tutorial-step span{font-size:10px}.mini-thread{display:flex;align-items:center;gap:4px;margin-top:4px}.mini-thread i{font-style:normal;min-width:26px;height:26px;border-radius:7px;background:var(--tile);color:var(--tile-ink);display:grid;place-items:center;font-weight:900}.mini-thread i.open{background:var(--socket);color:var(--muted);border:1px dashed var(--line)}.mini-thread em{font-style:normal;color:var(--gold);font-size:10px}.stats-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:7px;margin:10px 0}.stat-card{border:1px solid var(--line);border-radius:13px;background:var(--panel-soft);padding:11px;text-align:center;display:grid;gap:3px}.stat-card strong{color:var(--ink);font-size:19px}.stat-card span{font-size:8px;text-transform:uppercase;letter-spacing:.08em}.daily-list{display:grid;border:1px solid var(--line);border-radius:13px;overflow:hidden}.daily-record{display:grid;grid-template-columns:1fr auto auto;gap:9px;padding:9px 11px;align-items:center}.daily-record+.daily-record{border-top:1px solid var(--line)}.daily-record strong{color:var(--ink);font-size:11px}.daily-record span{font-size:10px}.setting-row{min-height:60px;display:flex;align-items:center;justify-content:space-between;gap:14px;padding:9px 0;border-bottom:1px solid var(--line)}.setting-row>span:first-child{display:grid;gap:2px}.setting-row strong{color:var(--ink);font-size:11px}.setting-row small{font-size:9px}.setting-row select{min-width:150px;min-height:44px;border:1px solid var(--line);border-radius:11px;background:#202119;color:var(--ink);padding:0 9px}.toggle-control{position:relative;width:48px;height:28px;flex:none}.toggle-control input{position:absolute;opacity:0;inset:0;width:100%;height:100%;margin:0;z-index:1;cursor:pointer}.toggle-control i{position:absolute;inset:0;border:1px solid var(--line);border-radius:999px;background:rgba(255,255,255,.08);pointer-events:none}.toggle-control i::after{content:"";position:absolute;width:20px;height:20px;left:3px;top:3px;border-radius:50%;background:var(--muted);transition:.18s}.toggle-control input:checked+i{background:var(--moss)}.toggle-control input:checked+i::after{transform:translateX(20px);background:#fff}.toggle-control input:focus-visible+i{outline:3px solid var(--focus);outline-offset:3px}.audio-status{font-size:10px;margin:9px 0 0!important}.summary{text-align:center}.summary-mark{width:72px;height:72px;margin:0 auto 10px;border:1px solid rgba(239,196,108,.34);border-radius:20px;display:grid;place-items:center;color:var(--gold);font-size:28px;background:rgba(239,196,108,.08);box-shadow:0 0 30px rgba(239,196,108,.11)}.summary p{max-width:35em;margin:0 auto 12px}.summary .assist-note{font-size:10px;color:var(--sage)}
@media(max-width:820px){.workspace{grid-template-columns:minmax(220px,270px) minmax(0,1fr);gap:8px}.info-panel{padding:12px}.intro-copy h1{font-size:31px}.intro-copy p{font-size:10px}.board-shell{width:min(100%,calc(100dvh - 180px))}.rule-card{display:none}}
@media(min-width:721px) and (max-width:820px) and (min-height:700px){.play-panel{grid-template-rows:auto auto auto auto;align-content:start}}
@media(max-width:720px){
  :root{--app-pad:max(6px,env(safe-area-inset-top)) max(6px,env(safe-area-inset-right)) max(6px,env(safe-area-inset-bottom)) max(6px,env(safe-area-inset-left))}
  .app{gap:5px}.topbar{min-height:46px}.brand-mark{width:38px;height:38px}.brand-kicker{display:none}.brand strong{font-size:19px}.header-actions{gap:3px}.icon-button{min-width:44px;height:44px}.help-button{grid-template-columns:1fr;padding:0;width:44px}.help-button strong{display:none}
  .workspace{grid-template-columns:1fr;grid-template-rows:auto minmax(0,1fr);gap:5px}.info-panel{border-radius:17px;padding:6px;display:grid;grid-template-columns:minmax(110px,.75fr) minmax(0,1.25fr);grid-template-areas:"mode hud";gap:5px;overflow:visible}.intro-copy,.rule-card,.profile-note{display:none}.mode-strip{grid-area:mode;gap:4px}.mode-strip button{min-height:44px;padding:5px;text-align:center;place-content:center;border-radius:10px}.mode-strip strong{font-size:10px}.mode-strip small{font-size:8px}.hud{grid-area:hud;grid-template-columns:repeat(4,minmax(0,1fr));gap:3px}.hud>div{padding:5px 4px;border-radius:9px;text-align:center}.hud span{font-size:7px}.hud strong{font-size:11px}
  .play-panel{border-radius:18px;padding:6px;grid-template-rows:28px minmax(0,1fr) 46px 32px;gap:3px}.board-header{min-height:28px;padding:0 2px}.board-header span{font-size:8px}.board-header strong{font-size:12px}.assist-chip{font-size:8px!important;padding:3px 6px}.board-shell{width:min(100%,calc(100vw - 24px),calc(100dvh - 225px));padding:5px;border-radius:17px}.thread-layer{inset:5px}.number-grid{gap:3px}.number-cell{min-height:44px;border-radius:9px;font-size:clamp(18px,8vw,30px)}.number-cell.is-selected::before,.number-cell.is-hinted::before{font-size:5px}.board-actions{gap:4px}.board-actions:has(#nextBoardButton:not([hidden])){grid-template-columns:1fr}.board-actions button{min-height:44px;border-radius:10px;font-size:10px;gap:4px}.board-actions span{font-size:14px}.feedback-zone{min-height:30px}.status-message{font-size:10px}.control-hint{display:none}
}
@media(max-width:380px){.brand{gap:5px}.brand>div{display:grid}.brand-kicker{display:none}.brand strong{font-size:14px;letter-spacing:-.05em}.board-shell{width:min(100%,calc(100vw - 22px),calc(100dvh - 221px))}.hud span{letter-spacing:.02em}.hud span[data-compact]{font-size:0}.hud span[data-compact]::after{content:attr(data-compact);font-size:7px}.board-header .assist-chip{max-width:118px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}}
@media(max-width:720px) and (min-height:700px){.play-panel{grid-template-rows:28px auto 46px 36px;align-content:start;gap:6px}.feedback-zone{min-height:36px}}
@media(max-height:690px) and (min-width:721px){.app{gap:5px}.topbar{min-height:46px}.brand-mark{width:38px;height:38px}.workspace{grid-template-columns:minmax(235px,300px) minmax(0,1fr);gap:8px}.info-panel{padding:11px;gap:7px}.intro-copy h1{font-size:29px}.intro-copy p{font-size:9px}.rule-card{padding:6px;gap:3px}.rule-card>div{grid-template-columns:32px 1fr}.rule-card b{width:32px;height:32px}.hud>div{padding:7px}.play-panel{padding:7px}.board-shell{width:min(100%,calc(100dvh - 215px),570px)}.feedback-zone{min-height:31px}}
@media(max-width:520px){.app-dialog{width:min(96vw,640px)}.dialog-header{padding:14px}.dialog-content{padding:14px}.dialog-actions{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));padding:11px 14px 14px}.dialog-actions button{min-width:0;width:100%;padding:0 7px}.stats-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.setting-row{align-items:flex-start}.setting-row select{min-width:130px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}
:root[data-motion-profile="instant"] *,:root[data-motion-profile="instant"] *::before,:root[data-motion-profile="instant"] *::after{scroll-behavior:auto!important;animation-duration:1ms!important;animation-iteration-count:1!important;transition-duration:1ms!important}
:root[data-motion-profile="instant"] .number-cell.just-cleared{animation:none}