:root{color:#172033;font-synthesis:none;text-rendering:optimizelegibility;background:#eef7f3;font-family:Inter,Segoe UI,Microsoft YaHei,system-ui,-apple-system,BlinkMacSystemFont,sans-serif}*{box-sizing:border-box}html,body,#root{min-width:320px;min-height:100%}body{overscroll-behavior:none;touch-action:manipulation;min-height:100vh;margin:0}body.game-lock{touch-action:manipulation}a{color:inherit}button{font:inherit;-webkit-tap-highlight-color:transparent}.page-shell{place-items:center;min-height:100vh;padding:24px;display:grid}.hero,.panel{background:#fff;border:1px solid #cfe5df;border-radius:8px;width:min(100%,720px);padding:32px;box-shadow:0 18px 40px #27615d14}h1,h2,p{margin-top:0}h1{margin-bottom:12px;font-size:40px;line-height:1.1}p{max-width:58ch;line-height:1.7}.actions{flex-wrap:wrap;gap:12px;margin-top:24px;display:flex}.actions a,.actions button,.join-form button,.panel a,.game-over-panel button{color:#fff;background:#2367c9;border:0;border-radius:8px;justify-content:center;align-items:center;min-height:44px;padding:0 18px;text-decoration:none;display:inline-flex}.join-form{flex-wrap:wrap;gap:8px;display:flex}.join-form input,.nickname-field input{border:1px solid #b8d7f2;border-radius:8px;min-width:140px;min-height:44px;padding:0 12px}.nickname-field{color:#2a3d57;gap:4px;display:grid}.nickname-field span{font-size:13px;font-weight:700}.nickname-field small{color:#5d6f86;font-size:12px}.status,.hint{color:#5d6f86;font-size:14px}.play-shell{touch-action:manipulation;grid-template-rows:1fr auto;gap:18px;min-height:100dvh;padding:18px;display:grid}.game-layout{grid-template-columns:minmax(280px,360px) minmax(220px,1fr);align-items:start;gap:18px;width:min(100%,960px);margin:0 auto;display:grid}.board-panel{border-radius:8px;justify-items:center;display:grid;position:relative}.game-canvas{aspect-ratio:1/2;width:min(100%,360px);height:auto;max-height:calc(100vh - 190px);image-rendering:crisp-edges;touch-action:none;-webkit-user-select:none;user-select:none;background:#0f172a;border:2px solid #20354f;border-radius:8px}.game-over-panel{color:#fff;text-align:center;background:#0f172ad1;border-radius:8px;place-content:center;gap:12px;display:grid;position:absolute;inset:18px}.side-panel{background:#fff;border:1px solid #cfe5df;border-radius:8px;gap:12px;padding:20px;display:grid;box-shadow:0 18px 40px #27615d14}.stat-row,.preview-panel{border-bottom:1px solid #ecf2f0;justify-content:space-between;align-items:center;gap:12px;min-height:48px;display:flex}.preview-panel{min-height:76px}.mini-grid{background:#f2f7f6;border-radius:8px;grid-template-rows:repeat(4,1fr);grid-template-columns:repeat(4,1fr);gap:2px;width:64px;height:64px;padding:4px;display:grid}.mini-grid i{background:#4d96ff;border-radius:3px}.mobile-controls{width:min(100%,720px);padding-bottom:max(0px, env(safe-area-inset-bottom));touch-action:none;-webkit-user-select:none;user-select:none;-webkit-touch-callout:none;grid-template-columns:repeat(3,minmax(0,1fr));grid-template-areas:"hold rotate hard""left soft right";gap:10px;margin:0 auto;display:grid}.mobile-controls button{color:#fff;touch-action:none;-webkit-user-select:none;user-select:none;-webkit-touch-callout:none;background:#172033;border:0;border-radius:8px;min-height:58px;font-weight:700}.mobile-controls button:active,.mobile-controls button.is-pressed{background:#2367c9;transform:translateY(1px)}.mobile-controls button:disabled{cursor:not-allowed;opacity:.45}.mobile-controls .move-left{grid-area:left}.mobile-controls .move-right{grid-area:right}.mobile-controls .rotate{background:#2367c9;grid-area:rotate;min-height:64px}.mobile-controls .soft-drop{grid-area:soft}.mobile-controls .hard-drop{background:#9b1c31;grid-area:hard}.mobile-controls .hold{background:#2f5d50;grid-area:hold}.duel-shell{overscroll-behavior:none;background:#eef7f3;min-height:100dvh;padding:18px}.duel-header{background:#fff;border:1px solid #cfe5df;border-radius:8px;justify-content:space-between;align-items:end;gap:18px;width:min(100%,1180px);margin:0 auto 16px;padding:18px;display:flex;box-shadow:0 18px 40px #27615d14}.duel-header h1,.duel-header p{margin-bottom:0}.duel-summary{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;min-width:320px;display:grid}.duel-summary button,.debug-panel button,.duel-result-panel button{color:#fff;background:#172033;border:0;border-radius:8px;min-height:40px;font-weight:700}.duel-grid{grid-template-columns:minmax(260px,1fr) minmax(220px,280px) minmax(260px,1fr);align-items:start;gap:14px;width:min(100%,1180px);margin:0 auto;display:grid}.online-match-grid{grid-template-columns:minmax(260px,1fr) minmax(220px,260px) minmax(260px,1fr);align-items:start;gap:14px;margin-top:16px;display:grid}.duel-player-panel,.debug-panel,.duel-result-panel{background:#fff;border:1px solid #cfe5df;border-radius:8px;padding:14px;box-shadow:0 18px 40px #27615d14}.room-shell{background:#eef7f3;min-height:100dvh;padding:24px}.room-panel{background:#fff;border:1px solid #cfe5df;border-radius:8px;width:min(100%,920px);margin:0 auto;padding:20px;box-shadow:0 18px 40px #27615d14}.room-header{justify-content:space-between;align-items:start;gap:16px;display:flex}.room-header h1,.room-header p{margin-bottom:0}.room-header a,.room-header .link-button,.room-actions a,.room-actions button{color:#fff;background:#172033;border:0;border-radius:8px;justify-content:center;align-items:center;min-height:40px;padding:0 14px;text-decoration:none;display:inline-flex}.room-actions{flex-wrap:wrap;gap:10px;margin:18px 0;display:flex}.room-actions button:disabled{cursor:not-allowed;opacity:.5}.room-error{color:#9b1c31;background:#ffe8ea;border-radius:8px;margin-top:16px;padding:12px}.room-error a,.room-error button,.result-actions a,.result-actions button{color:#fff;background:#172033;border:0;border-radius:8px;justify-content:center;align-items:center;min-height:40px;padding:0 14px;text-decoration:none;display:inline-flex}.room-feedback{color:#23764b;margin:-6px 0 14px;font-weight:700}.room-feedback.error{color:#9b1c31;overflow-wrap:anywhere}.countdown-overlay{z-index:20;color:#fff;pointer-events:none;background:#0f172a6b;place-items:center;font-size:96px;font-weight:800;display:grid;position:fixed;inset:0}.connection-pill{font-weight:700}.connection-pill.connected{color:#23764b}.connection-pill.connecting,.connection-pill.idle{color:#8a5b00}.connection-pill.closed,.connection-pill.error{color:#9b1c31}.room-state-card{border:1px solid #ecf2f0;border-radius:8px;padding:14px}.room-state-card h2{font-size:22px}.room-players{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:16px;display:grid}.room-player-card{border:1px solid #ecf2f0;border-radius:8px;padding:14px}.room-player-card h3{margin-top:0}.room-player-card code{overflow-wrap:anywhere}.duel-player-panel h2,.debug-panel h2,.duel-result-panel h2{margin-bottom:12px;font-size:22px}.duel-canvas{aspect-ratio:1/2;width:min(100%,264px);height:auto;image-rendering:crisp-edges;touch-action:none;-webkit-user-select:none;user-select:none;background:#0f172a;border:2px solid #20354f;border-radius:8px;margin:0 auto 12px;display:block}.duel-stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:6px 12px;display:grid}.duel-stats .stat-row,.duel-summary .stat-row{min-height:36px}.duel-previews{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-top:12px;display:grid}.debug-buttons{gap:8px;display:grid}.debug-buttons.compact{grid-template-columns:repeat(2,minmax(0,1fr));margin-top:14px}.debug-panel button:active,.duel-summary button:active,.duel-result-panel button:active{background:#2367c9;transform:translateY(1px)}.duel-result-panel{z-index:10;text-align:center;width:min(92vw,520px);position:fixed;top:50%;left:50%;transform:translate(-50%,-50%)}.result-grid{text-align:left;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:12px 0;display:grid}.result-actions{justify-content:center;gap:10px;display:flex}.room-mobile-controls{margin-top:12px}.local-duel-mobile-controls{width:min(100%,720px);margin:16px auto 0}.board-frame{aspect-ratio:1/2;place-items:stretch stretch;max-width:100%;max-height:100%;display:grid;overflow:hidden}.board-frame canvas{width:100%;max-width:none;height:100%;max-height:none}.online-playing-layout{gap:14px;margin-top:16px;display:grid}.online-playing-layout.desktop,.online-playing-layout.tablet{grid-template-columns:minmax(240px,1fr) minmax(220px,260px);align-items:start;overflow:visible}.online-playing-layout.desktop .online-boards-area,.online-playing-layout.tablet .online-boards-area{grid-template-columns:minmax(220px,1fr) minmax(220px,1fr);align-items:start;gap:14px;display:grid}.online-playing-layout.mobilePortrait,.online-playing-layout.mobileLandscape{min-height:0;overflow:hidden}.online-playing-header{display:none}.online-playing-layout.mobilePortrait .online-playing-header,.online-playing-layout.mobileLandscape .online-playing-header{justify-content:space-between;align-items:center;gap:8px;min-height:32px;font-size:12px;font-weight:700;display:flex}.online-playing-layout.mobilePortrait{grid-template-rows:auto minmax(0,1fr) auto;gap:8px;height:100%;margin-top:0}.online-playing-layout.mobilePortrait .online-boards-area{grid-template-rows:auto minmax(0,1fr);justify-items:center;gap:8px;min-height:0;display:grid;overflow:hidden}.online-playing-layout.mobilePortrait .opponent-panel{grid-template-columns:auto minmax(0,1fr);align-items:center;gap:8px;width:100%;padding:6px 8px;display:grid}.online-playing-layout.mobilePortrait .self-panel{align-content:center;justify-items:center;min-height:0;display:grid}.online-playing-layout.mobilePortrait .self-panel .duel-stats{grid-template-columns:repeat(5,minmax(0,1fr));gap:4px;font-size:11px}.online-playing-layout.mobilePortrait .self-panel .duel-stats .stat-row{text-align:center;justify-items:center;gap:2px;min-height:30px;display:grid}.online-playing-layout.mobilePortrait .opponent-panel .duel-stats,.online-playing-layout.mobilePortrait .duel-previews{display:none}.online-playing-layout.mobilePortrait .online-controls-panel,.online-playing-layout.mobileLandscape .online-controls-panel{box-shadow:none;background:0 0;border:0;padding:0}.online-playing-layout.mobilePortrait .online-controls-panel h2,.online-playing-layout.mobilePortrait .online-controls-panel .stat-row,.online-playing-layout.mobileLandscape .online-controls-panel h2,.online-playing-layout.mobileLandscape .online-controls-panel .stat-row{display:none}@media (width<=760px){body.game-lock{touch-action:none;overflow:hidden}.play-shell{height:100dvh;min-height:100dvh;max-height:100dvh;padding:max(8px, env(safe-area-inset-top)) 10px max(10px, env(safe-area-inset-bottom));touch-action:none;grid-template-rows:minmax(0,1fr) auto;gap:8px;overflow:hidden}.play-page{flex-direction:column;display:flex}.play-page-layout{flex-direction:column;flex:auto;gap:8px;min-height:0;display:flex;overflow:hidden}.solo-board-area{flex:auto;justify-content:center;align-items:center;min-height:0;display:flex;overflow:hidden}.solo-info-panel{flex:none;grid-template-columns:repeat(2,minmax(0,1fr));gap:6px 10px;max-height:162px;padding:8px 10px;overflow:hidden}.solo-info-panel h1{grid-column:1/-1;margin-bottom:0;font-size:20px}.solo-info-panel .hint{display:none}.solo-info-panel .stat-row,.solo-info-panel .preview-panel{border-bottom:0;min-height:34px;font-size:13px}.board-shell--solo{width:min(82vw, calc((100dvh - 232px - env(safe-area-inset-bottom)) / 2));max-width:min(100%,360px);height:auto;max-height:calc(100dvh - 232px - env(safe-area-inset-bottom))}.game-over-panel{inset:8px}.mini-grid{width:36px;height:36px;padding:3px}.mobile-controls{width:100%;padding-bottom:max(10px, env(safe-area-inset-bottom));flex:none;grid-template-columns:repeat(3,minmax(0,1fr));grid-template-areas:"hold rotate hard""left soft right";gap:8px}.mobile-controls button,.mobile-controls .rotate{min-height:54px}.duel-shell{height:100dvh;min-height:100dvh;max-height:100dvh;padding:max(8px, env(safe-area-inset-top)) 10px max(10px, env(safe-area-inset-bottom));touch-action:none;overflow:hidden}.duel-header{flex-direction:column;align-items:stretch;gap:8px;margin-bottom:8px;padding:10px}.duel-header h1{margin-bottom:4px;font-size:20px}.duel-header p{display:none}.duel-summary{grid-template-columns:repeat(2,minmax(0,1fr));gap:6px;min-width:0}.duel-grid,.online-match-grid{grid-template-columns:1fr}.duel-grid{gap:8px;max-height:calc(100dvh - 236px);overflow:hidden}.debug-panel{order:3}.duel-canvas{width:auto;max-width:min(100%,42dvh);height:clamp(260px,44dvh,480px);margin-bottom:8px}.duel-player-panel{padding:8px}.duel-player-panel h2,.debug-panel h2,.duel-result-panel h2{margin-bottom:6px;font-size:18px}.duel-player-panel:not(.self-panel,.opponent-panel):last-child{display:none}.duel-stats{gap:4px 8px;font-size:12px}.duel-stats .stat-row,.duel-summary .stat-row{min-height:28px}.duel-previews{display:none}.local-duel-mobile-controls{margin-top:8px}.room-shell{padding:10px}.room-panel{padding:12px}.room-shell-playing{height:100dvh;max-height:100dvh;padding:max(6px, env(safe-area-inset-top)) 8px max(8px, env(safe-area-inset-bottom));touch-action:none;overflow:hidden}.room-panel-playing{grid-template-rows:auto minmax(0,1fr);height:100%;min-height:0;padding:8px;display:grid;overflow:hidden}.room-panel-playing .room-header,.room-panel-playing .room-actions,.room-panel-playing .room-state-summary,.room-panel-playing .waiting-card,.room-panel-playing .room-players{display:none}.online-match-grid{grid-template-rows:auto minmax(0,1fr) auto;gap:6px;min-height:0;margin-top:0;display:grid;overflow:hidden}.online-match-grid .opponent-panel{order:1;grid-template-columns:auto minmax(0,1fr);align-items:center;gap:8px;padding:6px 8px;display:grid}.online-match-grid .opponent-panel .duel-canvas{width:auto;max-width:75px;height:clamp(96px,18dvh,150px);margin:0}.online-match-grid .opponent-panel .duel-stats,.online-match-grid .opponent-panel .duel-previews{display:none}.online-match-grid .self-panel{order:2;grid-template-rows:auto minmax(0,1fr) auto;align-content:center;min-height:0;display:grid}.online-match-grid .self-panel .duel-canvas{width:auto;max-width:min(100%,44dvh);height:min(44dvh,100dvh - 318px);min-height:230px;max-height:480px}.online-match-grid .self-panel .duel-stats{grid-template-columns:repeat(5,minmax(0,1fr));gap:4px;font-size:11px}.online-match-grid .self-panel .duel-stats .stat-row{text-align:center;justify-items:center;gap:2px;min-height:32px;display:grid}.online-controls-panel{z-index:20;box-shadow:none;background:0 0;border:0;order:3;padding:0}.online-controls-panel .mobile-controls{padding-bottom:max(10px, env(safe-area-inset-bottom))}.online-controls-panel h2,.online-controls-panel .stat-row{display:none}.room-header{flex-direction:column}.room-players{grid-template-columns:1fr}}@media (width<=760px) and (height<=680px){.play-shell{gap:6px;padding-inline:8px}.game-layout{gap:6px}.board-shell--solo{width:min(82vw, calc((100dvh - 204px - env(safe-area-inset-bottom)) / 2));max-height:calc(100dvh - 204px - env(safe-area-inset-bottom))}.side-panel{max-height:132px;padding:6px 8px}.solo-info-panel h1{font-size:18px}.solo-info-panel .stat-row,.solo-info-panel .preview-panel{min-height:28px;font-size:12px}.mini-grid{width:30px;height:30px}.mobile-controls{gap:6px}.mobile-controls button,.mobile-controls .rotate{min-height:48px}.duel-header{padding:8px}.duel-grid{max-height:calc(100dvh - 204px)}.duel-canvas{max-width:min(100%,39dvh);height:clamp(220px,40dvh,420px)}.online-match-grid .self-panel .duel-canvas{height:min(41dvh,100dvh - 286px);min-height:210px}.online-match-grid .opponent-panel .duel-canvas{height:clamp(82px,15dvh,130px)}}.board-frame>canvas.game-canvas,.board-frame>canvas.duel-canvas{width:100%;max-width:none;height:100%;max-height:none;margin:0}@media (width>=769px){body.game-lock{touch-action:manipulation;overflow:auto}.room-shell-playing,.room-panel-playing{overflow:visible}}