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var(--ink)}.finish-bar{flex-shrink:0;padding:0 16px 10px}.btn-primary{background:var(--pink);color:var(--ink);border:2.5px solid var(--ink);border-radius:12px;padding:14px;font-family:inherit;font-weight:700;font-size:15.5px;letter-spacing:-.01em;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:8px;box-shadow:4px 4px 0 var(--ink);transition:transform .1s ease,box-shadow .1s ease,opacity .12s ease}.btn-primary:active{transform:translate(3px,3px);box-shadow:1px 1px 0 var(--ink)}.btn-primary:disabled{opacity:.4;box-shadow:4px 4px 0 var(--ink);cursor:default}.btn-green{background:var(--green)}.btn-secondary{background:var(--card);border:2.5px solid var(--ink);color:var(--ink);border-radius:12px;padding:13px;font-family:inherit;font-weight:600;font-size:15px;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:8px;box-shadow:4px 4px 0 var(--ink)}.btn-secondary:active{transform:translate(3px,3px);box-shadow:1px 1px 0 var(--ink)}.btn-ghost{background:none;border:none;color:var(--muted);padding:10px;font-family:inherit;font-size:14px;font-weight:600;cursor:pointer}.link-btn{background:none;border:none;padding:4px 0;font-family:inherit;font-size:13px;font-weight:600;color:var(--blue);cursor:pointer;display:inline-flex;align-items:center;gap:5px}.link-btn-danger{color:var(--pink-deep);margin-top:18px;align-self:flex-start}.w-full{width:100%}.rotate-180{transform:rotate(180deg)}.result-screen{padding:calc(18px + var(--safe-top)) 18px calc(36px + var(--safe-bottom))}.result-top{text-align:center;padding:22px 0 4px}.result-badge{font-weight:700;font-size:32px;letter-spacing:-.035em;text-transform:uppercase;color:var(--green-deep)}.result-badge-fail{color:var(--pink-deep)}.result-daily-num{font-family:var(--font-mono);color:var(--muted);font-size:11px;margin-top:8px;letter-spacing:.12em}.result-scores{display:flex;gap:12px;margin-top:24px}.score-card{flex:1;min-width:0;border:2.5px solid var(--ink);border-radius:14px;box-shadow:4px 4px 0 var(--ink);padding:14px 10px;text-align:center;background:var(--card)}.score-card-speed{background:#fff3cf}.score-card-mastery{background:#e8f7ef}.score-card-label{font-family:var(--font-mono);font-size:9.5px;letter-spacing:.12em;color:var(--muted);font-weight:600}.score-card-value{font-family:var(--font-mono);font-weight:700;font-size:30px;letter-spacing:-.03em;margin-top:5px}.score-card-note{font-size:11.5px;color:var(--muted);margin-top:4px;font-weight:500}.rank-card{margin-top:18px;border:2px solid var(--ink);border-radius:13px;background:var(--card);padding:13px 14px}.rank-head{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:9px}.rank-title{font-family:var(--font-mono);font-size:10px;letter-spacing:.12em;color:var(--muted);font-weight:600}.rank-line{font-size:14px;line-height:1.55;font-weight:500}.rank-line b{font-family:var(--font-mono)}.result-actions{display:flex;flex-direction:column;gap:12px;margin-top:auto;padding-top:26px}.result-next-note{text-align:center;font-size:12.5px;color:var(--muted);margin-top:16px}.toast{position:fixed;left:50%;bottom:calc(28px + var(--safe-bottom));transform:translate(-50%);background:var(--ink);color:var(--paper);border-radius:999px;padding:9px 18px;font-size:13px;font-weight:600;z-index:60;animation:bannerIn .2s ease both}.yday-head{display:flex;flex-direction:column;gap:2px;margin-top:6px}.yday-result{display:flex;gap:12px;margin-top:20px}.yday-note{margin-top:20px;background:var(--card);border:2px dashed var(--dashed);border-radius:12px;padding:13px 14px;font-size:13.5px;color:var(--muted);line-height:1.55}.yday-note-sample{background:#fff3cf;border-style:solid;border-color:var(--ink);color:var(--ink);font-weight:500}.yday-missed{font-family:var(--font-mono);font-size:10px;letter-spacing:.08em;font-weight:700;color:var(--pink-deep)}.sol-list{display:flex;flex-direction:column;gap:8px}.sol-row{display:flex;align-items:center;gap:10px;background:var(--card);border:2px solid var(--ink);border-radius:11px;padding:11px 13px}.sol-row-found{background:#e8f7ef}.sol-expr{flex:1;min-width:0;font-family:var(--font-mono);font-weight:700;font-size:15px;display:flex;align-items:center;flex-wrap:wrap;gap:1px 7px}.sol-n{color:var(--ink)}.sol-op{color:var(--pink-deep);margin-left:7px;font-family:var(--font-sans);font-size:16px}.sol-eq{color:var(--muted)}.sol-target{color:var(--ink)}.sol-tick{flex-shrink:0;width:22px;height:22px;border-radius:999px;background:var(--green);border:2px solid var(--ink);color:var(--ink);display:flex;align-items:center;justify-content:center}.history-screen{padding:0 18px calc(36px + var(--safe-bottom))}.history-screen .game-header{padding-left:0;padding-right:0}.hist-list{display:flex;flex-direction:column;gap:8px}.hist-row{display:flex;align-items:center;justify-content:space-between;gap:12px;background:var(--card);border:2px solid var(--ink);border-radius:11px;padding:10px 12px}.hist-row-main{min-width:0}.hist-row-top{display:flex;align-items:center;gap:8px;font-family:var(--font-mono);font-weight:700;font-size:14px}.hist-row-meta{font-size:11.5px;color:var(--muted);margin-top:3px}.hist-time{font-family:var(--font-mono);font-weight:700;font-size:16px;flex-shrink:0}.hist-time-none{color:var(--muted);font-size:13px}.hist-tag{font-family:var(--font-mono);font-size:10px;font-weight:700;padding:2px 7px;border-radius:999px;border:1.5px solid var(--ink);background:var(--green)}.hist-empty,.hist-note{font-size:13px;color:var(--muted);line-height:1.5}.hist-empty{background:var(--card);border:2px dashed var(--dashed);border-radius:11px;padding:16px;text-align:center}.hist-note{margin-top:22px;font-size:12px;border-top:2px dashed #c8c2d2;padding-top:14px}.hist-head{display:flex;align-items:baseline;justify-content:space-between;margin:24px 0 10px}.hist-confirm{margin-top:18px;background:#ffd9e6;border:2px solid var(--ink);border-radius:11px;padding:12px;font-size:13px;font-weight:600}.hist-confirm-actions{display:flex;gap:8px;justify-content:flex-end;margin-top:8px}.btn-danger{background:var(--pink-deep);color:#fff;border:2px solid var(--ink);border-radius:9px;padding:8px 16px;font-family:inherit;font-size:14px;font-weight:700;cursor:pointer}.modal-overlay{position:fixed;inset:0;background:#17173a80;display:flex;align-items:flex-end;justify-content:center;z-index:50}.modal-sheet{background:var(--paper);border-top:3px solid var(--ink);border-radius:20px 20px 0 0;max-width:480px;width:100%;padding:20px 18px calc(26px + var(--safe-bottom));max-height:88dvh;overflow-y:auto;animation:sheetUp .25s ease both}@keyframes sheetUp{0%{transform:translateY(24px);opacity:0}to{transform:translateY(0);opacity:1}}.modal-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}.modal-title{font-weight:700;font-size:24px;margin:0;letter-spacing:-.03em;text-transform:uppercase}.rules{list-style:none;padding:0;margin:0 0 4px}.rules li{display:flex;gap:12px;margin-bottom:18px;align-items:flex-start}.rule-n{width:26px;height:26px;flex-shrink:0;border-radius:8px;background:var(--ink);color:var(--paper);display:flex;align-items:center;justify-content:center;font-family:var(--font-mono);font-weight:700;font-size:13px}.rule-head{font-weight:700;font-size:15.5px;letter-spacing:-.02em}.rule-body{color:var(--muted);font-size:14px;line-height:1.5;margin-top:3px}.howto-example{background:var(--card);border:2.5px solid var(--ink);box-shadow:4px 4px 0 var(--ink);border-radius:14px;padding:14px;text-align:center;margin:4px 4px 20px 0}.howto-example-label{font-family:var(--font-mono);font-size:9px;letter-spacing:.14em;color:var(--muted);margin-bottom:9px}.howto-example-eq{font-family:var(--font-mono);font-weight:700;font-size:17px;letter-spacing:.04em}.howto-example-arrow{color:var(--muted);font-size:12.5px;margin:9px 0}.howto-example-answer{font-family:var(--font-mono);font-weight:700;font-size:19px;letter-spacing:.04em;color:var(--green-deep)}.kbd-list{display:flex;flex-direction:column;gap:7px;margin-top:6px}.kbd-row{display:flex;align-items:center;gap:10px;font-size:13.5px;color:var(--muted)}.kbd{font-family:var(--font-mono);font-size:12px;font-weight:700;color:var(--ink);background:var(--card);border:2px solid var(--ink);border-radius:6px;padding:2px 8px;min-width:30px;text-align:center}:focus-visible{outline:3px solid var(--blue);outline-offset:2px}@media (prefers-reduced-motion: reduce){.eq-slot-win,.solve-banner,.modal-sheet,.found-chip-flash,.toast,.pad-key{animation:none!important;transition:none!important}}@media (max-height: 700px){.target-card{padding:7px 16px 9px}.target-value{font-size:36px}.equation{margin-top:14px}.eq-num,.eq-slot{height:clamp(44px,12vw,54px)}.live-value{margin-top:11px}.pad-key{height:52px}.home-top{padding-top:14px}}@media (min-width: 640px) and (min-height: 720px){.app-root{justify-content:center}.screen.game-screen{min-height:0;height:min(100dvh,760px)}.pad{border-radius:0 0 18px 18px}}