:root{--cell-base: 44px;--cell: var(--cell-base);--bg: #f4f4f3;--surface: #ffffff;--surface-alt: #ededec;--board-bg: #e9e9e7;--cell-bg: #f7f7f6;--cell-hover: #ffffff;--cell-line: #dcdcda;--ink: #161616;--ink-invert: #ffffff;--line: #bdbdbb;--line-soft: #e3e3e1;--tile-face: #ffffff;--tile-edge: #c6c6c4;--accent: #161616;--focus: #161616;--focus-bg: #eaeaea;--select-bg: #e0e0de;--shadow: rgba(0, 0, 0, .18);--shadow-strong: rgba(0, 0, 0, .3);--ok-bg: #ddedcc;--ok-edge: #86ac67;--ok-ink: #3c5c21;--bad-bg: #f6c9c2;--bad-edge: #dd7c71;--bad-ink: #a32e23;--warn-bg: #ffd9a6;--warn-edge: #e08a3c;--warn-ink: #94520f;--iso-bg: #ffeebb;--iso-edge: #dfb45e;--iso-ink: #8a6210;--good-tone-bg: #e9f2dc;--bad-tone-bg: #fbe4e1}:root[data-theme=dark]{--bg: #131313;--surface: #1e1e1e;--surface-alt: #292929;--board-bg: #181818;--cell-bg: #212121;--cell-hover: #2b2b2b;--cell-line: #2f2f2f;--ink: #ececec;--ink-invert: #131313;--line: #555553;--line-soft: #323230;--tile-face: #2b2b2b;--tile-edge: #505050;--accent: #ececec;--focus: #ececec;--focus-bg: #2f2f2f;--select-bg: #3c3c3a;--shadow: rgba(0, 0, 0, .55);--shadow-strong: rgba(0, 0, 0, .75);--ok-bg: #2b3d1d;--ok-edge: #5b8039;--ok-ink: #bcd99e;--bad-bg: #4b211c;--bad-edge: #a4544a;--bad-ink: #f0a89f;--warn-bg: #46311a;--warn-edge: #a86a2e;--warn-ink: #eec089;--iso-bg: #403919;--iso-edge: #94803e;--iso-ink: #dfcf8e;--good-tone-bg: #202e18;--bad-tone-bg: #3a1f1c}@media (prefers-color-scheme: dark){:root:not([data-theme=light]):not([data-theme=dark]){--bg: #131313;--surface: #1e1e1e;--surface-alt: #292929;--board-bg: #181818;--cell-bg: #212121;--cell-hover: #2b2b2b;--cell-line: #2f2f2f;--ink: #ececec;--ink-invert: #131313;--line: #555553;--line-soft: #323230;--tile-face: #2b2b2b;--tile-edge: #505050;--accent: #ececec;--focus: #ececec;--focus-bg: #2f2f2f;--select-bg: #3c3c3a;--shadow: rgba(0, 0, 0, .55);--shadow-strong: rgba(0, 0, 0, .75);--ok-bg: #2b3d1d;--ok-edge: #5b8039;--ok-ink: #bcd99e;--bad-bg: #4b211c;--bad-edge: 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24px;font-size:17px;font-weight:800}.page-close{position:fixed;top:14px;right:16px;z-index:10}@media (max-width: 600px){:root{--cell-base: 38px}.header{flex-wrap:nowrap;gap:8px;padding:8px 12px}.scoreboard{gap:10px;flex-wrap:nowrap;min-width:0}.score-value{font-size:21px}.score-chip{display:none}.header-actions{gap:6px;flex-shrink:0}.btn{padding:7px 10px}.word-bar{flex-wrap:wrap;padding:8px 12px;gap:6px 8px}.word-bar-letters{flex-basis:100%}.word-bar-actions{width:100%;gap:6px;flex-wrap:wrap;justify-content:flex-end}.word-bar-divider{margin:0 2px}.rack{padding-left:12px;padding-right:50px}.splash{padding:22px 28px}.splash-name{font-size:25px}.summary-inner{padding-top:26px;gap:20px}.summary-title{font-size:28px}.game-toast{max-width:calc(100vw - 24px);white-space:normal;text-align:center}.home-inner{padding-top:32px;gap:22px}.home-title{font-size:40px}.howto-inner{padding-top:30px}.howto-row{flex-direction:column;align-items:flex-start;gap:8px}.tutorial-banner{padding:10px 12px}}.battle-inner{max-width:480px}.battle-card{display:flex;flex-direction:column;gap:14px;padding:22px 20px;background:var(--surface);border:3px solid var(--line);border-radius:16px;box-shadow:0 3px 0 var(--line)}.battle-field{display:flex;flex-direction:column;gap:6px}.battle-label{font-size:11px;font-weight:700;letter-spacing:.09em;text-transform:uppercase;opacity:.6}.battle-input{font:inherit;font-weight:600;color:var(--ink);padding:10px 12px;background:var(--surface);border:2px solid var(--line);border-radius:10px}.battle-input:focus{outline:none;border-color:var(--ink);box-shadow:0 0 0 3px var(--surface-alt)}.battle-code-input{text-transform:uppercase;letter-spacing:.35em;font-weight:800;font-size:20px;text-align:center}.battle-wide-btn{width:100%;padding-top:10px;padding-bottom:10px;font-size:16px}.battle-divider{display:flex;align-items:center;gap:10px;font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;opacity:.55}.battle-divider:before,.battle-divider:after{content:"";flex:1;height:2px;background:var(--line-soft);border-radius:1px}.battle-status{margin:0;font-size:14px;font-weight:600;opacity:.75;text-align:center}.battle-error{margin:0;font-size:14px;font-weight:700;color:var(--bad-ink);text-align:center}.battle-lobby-title{font-size:40px}.battle-code-block{display:flex;flex-direction:column;align-items:center;gap:8px}.battle-code{padding:6px 18px;font-size:40px;font-weight:800;letter-spacing:.3em;text-indent:.3em;background:var(--surface-alt);border:2px dashed var(--line);border-radius:12px;-webkit-user-select:all;user-select:all}.battle-share{display:flex;flex-wrap:wrap;justify-content:center;gap:8px}.battle-roster{list-style:none;margin:0;padding:0;display:flex;flex-direction:column}.battle-roster-row{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:9px 4px;border-top:2px solid var(--line-soft);font-weight:600}.battle-roster-row:first-child{border-top:none}.battle-roster-name{display:flex;align-items:center;gap:8px;min-width:0}.battle-roster-note{font-size:12px;font-weight:700;opacity:.6;white-space:nowrap}.battle-chip{padding:1px 8px;border-radius:999px;font-size:11px;font-weight:700;background:var(--surface-alt);border:1px solid var(--line);white-space:nowrap}.battle-chip-you{background:var(--accent);border-color:var(--accent);color:var(--ink-invert)}.board-area{position:relative;flex:1;display:flex;min-height:0}.board-area>.board-wrap{flex:1}.board-alarm:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;z-index:140;pointer-events:none;border:5px solid var(--warn-ink);animation:board-alarm-pulse 1.1s ease-in-out infinite}.board-alarm-urgent:after{border-color:var(--bad-ink);animation-duration:.55s}@keyframes board-alarm-pulse{50%{opacity:.2}}.battle-results-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:6px}.battle-results-row{display:flex;align-items:center;gap:10px;padding:10px 12px;background:var(--surface);border:2px solid var(--line-soft);border-radius:12px;font-weight:600}.battle-results-winner{background:var(--surface-alt);border-color:var(--ink)}.battle-results-self{border-color:var(--line)}.battle-results-rank{min-width:36px;font-weight:800}.battle-results-name{flex:1;display:flex;align-items:center;gap:8px;min-width:0}.battle-results-left{font-size:12px;font-weight:700;opacity:.55}.battle-results-score{font-size:18px;font-weight:800;font-variant-numeric:tabular-nums}.battle-results-waiting{margin:10px 0 0;font-size:13px;font-weight:600;opacity:.65}.spectate{position:fixed;top:0;right:0;bottom:0;left:0;z-index:180;display:flex;align-items:center;justify-content:center;padding:24px;background:var(--shadow-strong)}.spectate-card{display:flex;flex-direction:column;align-items:center;gap:8px;width:min(420px,100%);max-height:100%;overflow-y:auto;padding:24px 28px;text-align:center;background:var(--surface);border:3px solid var(--ink);border-radius:16px;box-shadow:0 10px 28px var(--shadow-strong)}.spectate-title{margin:0;font-size:28px;font-weight:800}.spectate-note{margin:0;font-size:14px;font-weight:600;opacity:.75;line-height:1.45}.spectate-standing{margin:6px 0 0;font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;opacity:.65}.spectate-players{list-style:none;margin:2px 0 0;padding:0;align-self:stretch;display:flex;flex-direction:column;gap:6px;text-align:left}.spectate-player{display:flex;align-items:center;gap:10px;padding:8px 12px;background:var(--surface-alt);border:2px solid var(--line-soft);border-radius:12px;font-weight:600}.spectate-self{border-color:var(--line)}.spectate-fallen{opacity:.55}.spectate-player-name{flex:1;display:flex;align-items:center;gap:8px;min-width:0}.spectate-player-state{font-size:13px;font-weight:700;font-variant-numeric:tabular-nums;white-space:nowrap}.spectate-actions{display:flex;flex-direction:column;align-self:stretch;gap:8px;margin-top:12px}.battle-notice{position:fixed;top:14px;left:50%;transform:translate(-50%);z-index:450;max-width:calc(100vw - 28px);padding:10px 18px;font-size:14px;font-weight:700;color:var(--ink-invert);background:var(--accent);border:none;border-radius:999px;box-shadow:0 4px 12px var(--shadow);cursor:pointer}.pause-screen{position:fixed;top:0;right:0;bottom:0;left:0;z-index:340;display:flex;align-items:center;justify-content:center;padding:24px;background:var(--bg);animation:splash-in .18s 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var(--shadow-strong)}.net-title{margin:0;font-size:20px;font-weight:800}.net-note{margin:0;font-size:14px;font-weight:600;opacity:.75;line-height:1.45}.net-dot{width:8px;height:8px;border-radius:999px;background:var(--ink);animation:net-pulse 1.1s ease-in-out infinite}@keyframes net-pulse{50%{opacity:.25}}.net-actions{display:flex;gap:8px;margin-top:8px}@media (max-width: 540px){.battle-code{font-size:30px}}