:root{--bg: #0c1015;--bg-radial: #131922;--surface: #141b23;--surface-2: #19222d;--border: #253040;--border-bright: #37475e;--text: #e6edf6;--text-dim: #7f91a8;--text-muted: #526277;--focus: #38bdf8;--focus-bg: #14283a;--focus-glow: rgba(56, 189, 248, .28);--crosshair: #1c2735;--solved-bg: #11201b;--solved-border: #1e3d31;--solved-text: #74d9a6;--gold: #f5b841;--gold-dim: rgba(245, 184, 65, .14);--miss: #f87171;--font-sans: "Space Grotesk", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;--font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;--cell-size: 38px;--cell-gap: 3px;--cell-font: 15px}*,*:before,*:after{box-sizing:border-box}html,body{margin:0;padding:0;height:100%;background:radial-gradient(circle at 50% 30%,var(--bg-radial),var(--bg) 72%);color:var(--text);font-family:var(--font-sans);-webkit-font-smoothing:antialiased;-webkit-user-select:none;user-select:none;overflow:hidden}button{font-family:inherit;color:inherit;cursor:pointer}#app{height:100dvh;width:100vw;display:flex;flex-direction:column;padding:10px 16px 8px;gap:8px}.hud{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:12px;min-height:46px}.hud-left{display:flex;align-items:center;gap:10px;min-width:0}.brand{display:flex;align-items:center;gap:7px;flex-shrink:0}.coin-dot{width:22px;height:22px;border-radius:50%;background:var(--gold-dim);border:1.5px solid var(--gold);color:var(--gold);font-family:var(--font-mono);font-size:12px;font-weight:700;display:grid;place-items:center}.brand-name{font-weight:700;font-size:14px;letter-spacing:.08em;color:var(--text)}.chip-btn{display:inline-flex;align-items:center;gap:6px;padding:5px 10px;border-radius:7px;background:var(--surface);border:1px solid var(--border);font-size:12px;font-weight:600;color:var(--text-dim);white-space:nowrap;transition:border-color .14s ease,color .14s ease}.chip-btn:hover{border-color:var(--border-bright);color:var(--text)}.chip-btn .sep{opacity:.45}.hud-center{display:flex;align-items:center;gap:14px}.eq-pill{display:inline-flex;align-items:center;gap:7px;padding:5px 12px;border-radius:9px;background:var(--surface);border:1px solid var(--border-bright);font-family:var(--font-mono);font-size:17px;font-weight:700;box-shadow:inset 0 1px #ffffff0a}.eq-op{color:var(--text-dim);font-weight:500}.eq-input{min-width:40px;padding:2px 8px;border-radius:6px;background:var(--focus-bg);border:1px solid rgba(56,189,248,.55);color:var(--focus);text-align:center;font-variant-numeric:tabular-nums}.eq-input.empty{color:#38bdf88c}.eq-pill.miss{border-color:#f87171b3;animation:shake-x .24s ease}.progress-wrap{display:flex;align-items:center;gap:8px}.progress-track{width:72px;height:6px;border-radius:999px;background:var(--surface-2);border:1px solid var(--border);overflow:hidden}.progress-fill{height:100%;width:0%;background:linear-gradient(90deg,#34d399,var(--focus));transition:width .16s ease}.progress-text{font-family:var(--font-mono);font-size:12px;color:var(--text-dim);font-variant-numeric:tabular-nums}.hud-right{display:flex;align-items:center;justify-content:flex-end;gap:10px}.money-group{display:flex;align-items:center;gap:8px}.money-box{display:flex;align-items:baseline;gap:6px;padding:5px 10px;border-radius:7px;background:var(--surface);border:1px solid var(--border)}.money-box.vault{border-color:#f5b84159;background:linear-gradient(180deg,#f5b84114,#f5b84105)}.money-label{font-size:10px;font-weight:700;letter-spacing:.08em;color:var(--text-muted)}.money-val{font-family:var(--font-mono);font-size:14px;font-weight:700;font-variant-numeric:tabular-nums}.board-val{color:var(--solved-text)}.vault-val{color:var(--gold)}.money-box.bump{animation:coin-bump .22s cubic-bezier(.2,.9,.3,1.3)}.hud-actions{display:flex;align-items:center;gap:6px}.icon-btn{padding:6px 10px;border-radius:7px;background:var(--surface);border:1px solid var(--border);font-family:var(--font-mono);font-size:11px;font-weight:700;letter-spacing:.05em;color:var(--text-dim);transition:border-color .14s ease,color .14s ease,background .14s ease}.icon-btn:hover{border-color:var(--border-bright);color:var(--text)}.icon-btn.muted{color:var(--text-muted);text-decoration:line-through}.milestone-banner{position:fixed;top:62px;right:18px;z-index:25;padding:5px 11px;border-radius:999px;background:#1a232e;border:1px solid rgba(245,184,65,.5);color:var(--gold);font-family:var(--font-mono);font-size:11px;font-weight:700;letter-spacing:.06em;opacity:0;transform:translateY(-6px);pointer-events:none;transition:opacity .18s ease,transform .18s ease}.milestone-banner.show{opacity:1;transform:translateY(0)}.workspace{flex:1;min-height:0;display:flex;align-items:center;justify-content:center;gap:18px}.board-stage{flex:1;height:100%;min-width:0;min-height:0;display:flex;align-items:center;justify-content:center}.board-frame{position:relative;padding:8px;border-radius:12px;background:var(--surface);border:1px solid var(--border);box-shadow:0 18px 40px #00000073,inset 0 1px #ffffff0a}.grid{display:grid;gap:var(--cell-gap)}.cell{width:var(--cell-size);height:var(--cell-size);border-radius:5px;display:flex;align-items:center;justify-content:center;font-family:var(--font-mono);font-size:var(--cell-font);font-weight:700;font-variant-numeric:tabular-nums;position:relative;transition:background-color .11s ease,border-color .11s ease,transform .1s ease,color .11s ease}.cell-corner{background:#10151c;border:1px solid #1d2633;color:var(--text-muted);font-size:calc(var(--cell-font) * .95)}.cell-header{background:#10161e;border:1px solid #1e2836;color:var(--text-dim)}.cell-header.highlight{background:#162637;border-color:#38bdf873;color:var(--focus)}.cell-data{background:#18202b;border:1px solid #243040;color:var(--text);box-shadow:inset 0 1px #ffffff08;cursor:pointer}.cell-data:hover:not(.solved):not(.active){border-color:var(--border-bright);background:#1d2734}.cell-data.crosshair:not(.solved):not(.active){background:var(--crosshair);border-color:#2b3b4f}.cell-data.upcoming:not(.active):not(.solved):after{content:"";width:5px;height:5px;border-radius:50%;background:#38bdf859}.cell-data.active{background:var(--focus-bg);border:2px solid var(--focus);box-shadow:0 0 14px var(--focus-glow);color:#fff;z-index:2}.cell-data.active.empty:after{content:"";width:2px;height:46%;background:var(--focus);border-radius:1px;animation:blink-caret 1s steps(2,start) infinite}.cell-data.solved{background:var(--solved-bg);border-color:var(--solved-border);color:var(--solved-text);cursor:default;box-shadow:none}.cell-data.solved.just-solved{animation:solve-pop .34s ease}.cell-data.miss{border-color:var(--miss);background:#f8717124;animation:shake-x .26s ease}.fx-layer{position:absolute;top:0;right:0;bottom:0;left:0;pointer-events:none;overflow:visible;z-index:10}.coin-pop{position:absolute;transform:translate(-50%,-50%);font-family:var(--font-mono);font-size:12px;font-weight:700;color:var(--gold);background:#10161eeb;border:1px solid rgba(245,184,65,.65);border-radius:999px;padding:1px 6px;box-shadow:0 4px 12px #0006;animation:float-up .56s cubic-bezier(.18,.9,.3,1) forwards}.keypad{display:grid;grid-template-columns:repeat(3,56px);gap:8px;padding:10px;border-radius:12px;background:var(--surface);border:1px solid var(--border);flex-shrink:0}.keypad[hidden]{display:none}.kp-key{height:48px;border-radius:8px;background:var(--surface-2);border:1px solid var(--border-bright);font-family:var(--font-mono);font-size:18px;font-weight:700;color:var(--text);transition:transform 70ms ease,background .1s ease,border-color .1s ease}.kp-key:active{transform:translateY(1px);background:#233040}.kp-fn{color:var(--text-dim);font-size:16px}.kp-go{background:#38bdf824;border-color:#38bdf873;color:var(--focus);font-size:13px}.footer-bar{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:12px;color:var(--text-muted);padding:0 2px}.footer-left{display:flex;align-items:center;gap:8px;min-width:0}.hub-link{color:var(--text-dim);text-decoration:none;font-size:12px;padding:4px 6px;margin:-4px -6px;border-radius:6px;white-space:nowrap;transition:color .14s ease,background .14s ease}.hub-link:hover{color:var(--text);background:#ffffff0a}.hub-link:focus-visible{outline:2px solid var(--focus);outline-offset:2px;color:var(--text)}.footer-sep{opacity:.45}.footer-stats{display:flex;align-items:center;gap:10px;font-family:var(--font-mono);font-variant-numeric:tabular-nums}.streak-tag{color:var(--solved-text);background:#74d9a61a;border:1px solid rgba(116,217,166,.28);padding:2px 7px;border-radius:5px;font-size:11px;font-weight:700}.timer-tag{color:var(--text-dim)}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;z-index:40;background:#06090dc2;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);display:flex;align-items:center;justify-content:center;padding:16px}.modal-backdrop[hidden]{display:none}.modal-card{width:min(490px,100%);max-height:92dvh;overflow-y:auto;background:var(--surface);border:1px solid var(--border-bright);border-radius:14px;padding:18px 20px;box-shadow:0 24px 60px #0009;display:flex;flex-direction:column;gap:16px}.modal-head{display:flex;align-items:center;justify-content:space-between}.modal-head h2{margin:0;font-size:15px;letter-spacing:.08em}.setup-section{display:flex;flex-direction:column;gap:8px}.setup-label{font-size:11px;font-weight:700;letter-spacing:.08em;color:var(--text-dim)}.preset-row,.seg-row{display:flex;flex-wrap:wrap;gap:6px}.seg-btn{padding:6px 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var(--border);border-radius:7px;overflow:hidden}.step-btn{width:28px;height:28px;border:0;background:transparent;font-family:var(--font-mono);font-size:15px;color:var(--text-dim)}.step-btn:hover{background:#222e3d;color:var(--text)}.step-val{min-width:28px;text-align:center;font-family:var(--font-mono);font-size:13px;font-weight:700;color:var(--text)}.dim-x{color:var(--text-muted);font-family:var(--font-mono)}.pattern-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:6px}.pattern-btn{text-align:left;padding:7px 10px;border-radius:7px;background:var(--surface-2);border:1px solid var(--border);font-size:12px;font-weight:600;color:var(--text-dim);display:flex;align-items:center;justify-content:space-between;gap:6px}.pattern-btn.active{background:var(--focus-bg);border-color:var(--focus);color:var(--text)}.pattern-tag{font-family:var(--font-mono);font-size:10px;color:var(--text-muted)}.pattern-btn.active .pattern-tag{color:var(--focus)}.setup-note{margin:0;font-size:12px;color:var(--text-dim);min-height:16px}.setup-row-2{display:grid;grid-template-columns:1fr 1fr;gap:12px}.modal-foot{display:flex;align-items:center;justify-content:space-between;gap:10px;padding-top:6px;border-top:1px solid var(--border)}.modal-foot-right{display:flex;align-items:center;gap:8px}.primary-btn{padding:8px 16px;border-radius:8px;border:1px solid rgba(56,189,248,.7);background:#38bdf829;color:#e0f4ff;font-family:var(--font-mono);font-size:12px;font-weight:700;letter-spacing:.06em}.primary-btn:hover{background:#38bdf840}.danger-ghost{padding:6px 10px;border-radius:7px;background:transparent;border:1px solid transparent;font-family:var(--font-mono);font-size:11px;font-weight:700;color:var(--text-muted)}.danger-ghost:hover,.danger-ghost.confirming{color:var(--miss);border-color:#f8717173;background:#f8717114}.complete-card{width:min(410px,100%);text-align:center;align-items:center}.complete-badge{font-family:var(--font-mono);font-size:11px;font-weight:700;letter-spacing:.12em;color:var(--solved-text);background:#74d9a61a;border:1px solid rgba(116,217,166,.35);padding:4px 10px;border-radius:999px}.complete-earned{margin:0;font-family:var(--font-mono);font-size:38px;color:var(--gold)}.complete-sub{margin:-8px 0 0;font-size:13px;color:var(--text-dim)}.complete-stats{width:100%;display:grid;grid-template-columns:repeat(2,1fr);gap:8px}.cstat{background:var(--surface-2);border:1px solid var(--border);border-radius:9px;padding:10px;display:flex;flex-direction:column;gap:3px}.cstat-k{font-size:10px;font-weight:700;letter-spacing:.08em;color:var(--text-muted)}.cstat-v{font-family:var(--font-mono);font-size:17px;font-weight:700}.cstat-v.gold{color:var(--gold)}.complete-actions{width:100%;display:flex;justify-content:flex-end;gap:8px}@keyframes blink-caret{0%,to{opacity:1}50%{opacity:0}}@keyframes solve-pop{0%{transform:scale(1.09);background:#1c4435;border-color:#34d399;color:#fff}to{transform:scale(1)}}@keyframes shake-x{0%,to{transform:translate(0)}25%{transform:translate(-4px)}75%{transform:translate(4px)}}@keyframes float-up{0%{opacity:0;transform:translate(-50%,-20%) scale(.85)}20%{opacity:1;transform:translate(-50%,-55%) scale(1.04)}to{opacity:0;transform:translate(-50%,-155%) scale(.95)}}@keyframes coin-bump{0%{transform:scale(1)}50%{transform:scale(1.07)}to{transform:scale(1)}}@media(max-width:900px){.hud{grid-template-columns:1fr auto;grid-template-rows:auto auto;gap:8px}.hud-center{grid-column:1 / -1;justify-content:space-between}.workspace{flex-direction:column;gap:10px}.keypad{grid-template-columns:repeat(6,1fr);width:min(440px,100%);padding:8px;gap:6px}.kp-key{height:40px;font-size:16px}}@media(max-width:560px){#app{padding:8px 10px}.brand-name{display:none}.setup-row-2{grid-template-columns:1fr}.footer-hint,.footer-sep{display:none}}