:root{--ink:#f6f4dd;--night:#141126;--night-soft:#201a3b;--panel:#31285a;--panel-deep:#211b42;--aqua:#65ebdb;--aqua-dark:#168d91;--lemon:#ffe066;--pink:#ff6fa8;--danger:#ff8c82;--pixel-border:#0c0920;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;font-family:Courier New,Noto Sans KR,monospace}*{box-sizing:border-box}html,body{min-height:100%;margin:0}body{color:var(--ink);background:var(--night)}button,input{font:inherit}button,input,a{-webkit-tap-highlight-color:transparent}.sr-only{clip:rect(0, 0, 0, 0)!important;white-space:nowrap!important;border:0!important;width:1px!important;height:1px!important;margin:-1px!important;padding:0!important;position:absolute!important;overflow:hidden!important}.lobby-shell{min-height:100svh;padding:max(24px, env(safe-area-inset-top)) max(18px, env(safe-area-inset-right)) max(24px, env(safe-area-inset-bottom)) max(18px, env(safe-area-inset-left));background:linear-gradient(#65ebdb12 1px, transparent 1px), linear-gradient(90deg, #65ebdb12 1px, transparent 1px), radial-gradient(circle at 50% -20%, #43367c 0, var(--night) 55%);background-size:32px 32px,32px 32px,auto;place-items:center;display:grid;position:relative;overflow:hidden}.pixel-stars,.pixel-stars:before,.pixel-stars:after{content:"";background:var(--lemon);width:5px;height:5px;box-shadow:13vw 9vh var(--aqua), 29vw 76vh var(--pink), 47vw 14vh var(--ink), 64vw 83vh var(--aqua), 82vw 20vh var(--lemon), 91vw 67vh var(--pink);position:absolute}.pixel-stars{top:5vh;left:3vw}.pixel-stars:before{top:28vh;left:7vw}.pixel-stars:after{top:58vh;left:-1vw}.lobby-card{z-index:1;border:6px solid var(--pixel-border);outline:4px solid var(--aqua-dark);background:linear-gradient(145deg, var(--panel) 0%, var(--panel-deep) 100%);grid-template-columns:minmax(0,1fr) minmax(180px,.55fr);width:min(960px,100%);padding:clamp(24px,5vw,52px);display:grid;position:relative;box-shadow:14px 14px #090717,inset 0 0 0 3px #f6f4dd14}.hero-copy{align-self:center}.eyebrow{color:var(--night);background:var(--lemon);box-shadow:4px 4px 0 var(--pixel-border);margin:0 0 14px;padding:8px 10px;font-size:clamp(.75rem,2vw,.95rem);font-weight:800;display:inline-block}h1{max-width:650px;color:var(--aqua);letter-spacing:-.09em;text-shadow:5px 5px 0 var(--aqua-dark), 9px 9px 0 var(--pixel-border);margin:0;font-size:clamp(2.8rem,9vw,6.6rem);line-height:.85}.hero-kicker{max-width:34rem;margin:24px 0 18px;font-size:clamp(1rem,2.2vw,1.22rem);line-height:1.6}.feature-chips{flex-wrap:wrap;gap:8px;margin:0;padding:0;list-style:none;display:flex}.feature-chips li{border:3px solid var(--pixel-border);color:var(--night);background:var(--pink);padding:6px 9px;font-size:.82rem;font-weight:800}.lumi-stage{place-items:center;min-height:240px;display:grid;position:relative}.lumi-stage img{z-index:1;width:min(192px,100%);height:auto;image-rendering:pixelated;filter:drop-shadow(8px 10px #0c0920cc);animation:2s steps(2,end) infinite hero-bob}.bubble{border:5px solid var(--aqua);box-shadow:inset -8px -8px 0 #168d9161, 4px 4px 0 var(--pixel-border);background:#65ebdb29;border-radius:50%;position:absolute}.bubble-one{width:58px;height:58px;top:8%;right:6%}.bubble-two{width:36px;height:36px;bottom:10%;left:3%}.lobby-form{border-top:4px dashed #65ebdb59;grid-column:1/-1;grid-template-columns:1fr 1fr auto;align-items:start;gap:14px;margin-top:28px;padding-top:24px;display:grid}.field-group{min-width:0}.field-group label{color:var(--lemon);margin-bottom:7px;font-weight:800;display:block}.field-group input{border:4px solid var(--pixel-border);width:100%;min-height:64px;color:var(--night);background:var(--ink);text-transform:none;border-radius:0;outline:0;padding:12px 14px;font-size:1.05rem;font-weight:800;box-shadow:inset 4px 4px #c8c5ad}.field-group input:focus-visible{border-color:var(--lemon);box-shadow:inset 4px 4px #c8c5ad,0 0 0 4px #ffe0664d}.field-group input[aria-invalid=true]{border-color:var(--danger)}.field-hint,.field-error,.privacy-note{margin:7px 0 0;font-size:.76rem;line-height:1.45}.field-hint,.privacy-note{color:#cbc7e5}.field-error{color:var(--danger);font-weight:800}.lobby-form button{border:4px solid var(--pixel-border);min-width:180px;min-height:64px;color:var(--night);background:var(--aqua);box-shadow:6px 6px 0 var(--pixel-border);cursor:pointer;border-radius:0;margin-top:26px;padding:12px 18px;font-size:1rem;font-weight:900}.lobby-form button:hover,.lobby-form button:focus-visible{background:var(--lemon);outline:3px solid var(--ink);outline-offset:3px}.lobby-form button:active{box-shadow:2px 2px 0 var(--pixel-border);translate:4px 4px}.privacy-note{text-align:right;grid-column:1/-1}.teacher-entry{color:var(--lemon);text-underline-offset:5px;grid-column:1/-1;justify-self:end;margin-top:20px;font-weight:800}.teacher-shell{background:linear-gradient(#65ebdb12 1px, transparent 1px), linear-gradient(90deg, #65ebdb12 1px, transparent 1px), radial-gradient(circle at 50% -20%, #43367c, var(--night) 60%);background-size:32px 32px,32px 32px,auto;place-items:center;min-height:100svh;padding:24px;display:grid}.teacher-card{border:6px solid var(--pixel-border);outline:4px solid var(--aqua-dark);background:var(--panel-deep);width:min(720px,100%);padding:clamp(20px,5vw,44px);box-shadow:12px 12px #090717}.teacher-card h1{letter-spacing:-.06em;font-size:clamp(2.5rem,7vw,4rem);line-height:1}.teacher-card>p{line-height:1.6}.teacher-form{grid-template-columns:minmax(0,1fr) auto;gap:10px;margin-block:24px;display:grid}.teacher-form label{color:var(--lemon);grid-column:1/-1;font-weight:800}.teacher-form input,.teacher-form select,.teacher-form button{border:4px solid var(--pixel-border);border-radius:0;min-height:58px;font-weight:800}.teacher-form input,.teacher-form select{min-width:0;color:var(--night);background:var(--ink);padding:10px}.teacher-form button{color:var(--night);background:var(--aqua);box-shadow:4px 4px 0 var(--pixel-border);cursor:pointer;padding:10px 16px}.teacher-form button:disabled{opacity:.6;cursor:wait}.teacher-form input:focus-visible,.teacher-form select:focus-visible,.teacher-form button:focus-visible,.teacher-home-link:focus-visible,.teacher-entry:focus-visible{outline:3px solid var(--lemon);outline-offset:3px}.teacher-goals{border:3px solid var(--pixel-border);grid-column:1/-1;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px 12px;min-width:0;padding:14px;display:grid}.teacher-goals legend{color:var(--lemon);font-weight:800}.teacher-goals label{grid-column:auto;font-size:.85rem}.teacher-goals input{width:100%}.teacher-goals select{grid-column:1/-1;width:100%}.teacher-tables{border:3px solid var(--pixel-border);grid-column:1/-1;padding:14px}.teacher-tables legend{color:var(--lemon);font-weight:800}.teacher-tables-grid{grid-template-columns:repeat(5,minmax(0,1fr));gap:8px;display:grid}.teacher-tables-grid label{grid-column:auto;align-items:center;gap:6px;min-height:48px;display:flex}.teacher-division{align-items:center;gap:8px;min-height:48px;margin-top:10px;display:flex}.teacher-form .teacher-tables-grid input[type=checkbox],.teacher-form .teacher-division input[type=checkbox]{width:22px;height:22px;min-height:22px;accent-color:var(--aqua);border:0;margin:0;padding:0}.teacher-form>.field-hint{grid-column:1/-1}.teacher-error{border:3px solid var(--danger);color:var(--danger);padding:12px;font-weight:800}.teacher-monitor{border-top:4px dashed var(--aqua-dark);margin-top:24px;padding-top:20px}.teacher-room-label{color:var(--lemon);margin:0;font-weight:800}.teacher-room-code{border:4px solid var(--pixel-border);width:fit-content;color:var(--night);background:var(--lemon);box-shadow:5px 5px 0 var(--pixel-border);letter-spacing:.08em;-webkit-user-select:all;user-select:all;margin:8px 0;padding:8px 16px;font-size:clamp(2.5rem,11vw,4.5rem);font-weight:900}.teacher-stats{grid-template-columns:repeat(2,1fr);gap:12px;margin-block:22px;display:grid}.teacher-stats p{border:3px solid var(--pixel-border);color:var(--night);background:var(--aqua);gap:4px;margin:0;padding:12px;display:grid}.teacher-stats strong{font-size:1.8rem}.teacher-stats span{font-size:.8rem;font-weight:800}.teacher-stage{border:2px solid var(--aqua-dark);background:var(--panel-deep);padding:10px 12px;font-weight:800}.teacher-roster{gap:7px;padding:0;list-style:none;display:grid}.teacher-roster li{border:2px solid var(--aqua-dark);justify-content:space-between;gap:12px;padding:10px;display:flex}.teacher-home-link{color:var(--lemon);text-underline-offset:5px;margin-top:20px;font-weight:800;display:inline-block}@media (max-width:540px){.teacher-form{grid-template-columns:1fr}.teacher-tables-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.teacher-roster li{flex-wrap:wrap}}.connection-banner{border:3px solid var(--pixel-border);background:var(--panel-deep);align-items:center;gap:10px;min-height:44px;padding:9px 12px;font-size:.8rem;font-weight:800;display:flex}.connection-dot{background:var(--lemon);width:12px;height:12px;box-shadow:2px 2px 0 var(--pixel-border)}.connection-online .connection-dot{background:var(--aqua)}.connection-reconnecting .connection-dot{background:var(--lemon)}.connection-expired .connection-dot,.connection-offline .connection-dot{background:var(--danger)}.touch-controls{width:100%;padding:10px max(14px, env(safe-area-inset-right)) max(12px, env(safe-area-inset-bottom)) max(14px, env(safe-area-inset-left));-webkit-user-select:none;user-select:none;touch-action:none;-webkit-touch-callout:none;justify-content:space-between;align-items:flex-end;gap:28px;display:flex}.direction-controls,.action-controls{gap:12px;display:flex}.touch-button{border:4px solid var(--pixel-border);min-width:64px;min-height:64px;color:var(--night);background:var(--aqua);box-shadow:5px 5px 0 var(--pixel-border);cursor:pointer;touch-action:none;border-radius:0;place-items:center;padding:8px;font-size:1.25rem;font-weight:900;display:grid}.touch-button[aria-pressed=true]{background:var(--lemon);box-shadow:1px 1px 0 var(--pixel-border);translate:4px 4px}.touch-button:focus-visible{outline:3px solid var(--ink);outline-offset:3px}.touch-button:disabled{opacity:.45;cursor:not-allowed}.jump-button{min-width:88px;color:var(--ink);background:var(--pink);font-size:.9rem}.bubble-button{color:var(--ink);background:var(--aqua-dark);font-size:.9rem}.pop-button{background:var(--lemon);font-size:.9rem}.rescue-button{background:#ff8aa7;font-size:.9rem}.downed-notice{z-index:6;border:4px solid var(--pixel-border);width:min(420px,100% - 24px);color:var(--night);background:var(--pink);box-shadow:6px 6px 0 var(--pixel-border);text-align:center;pointer-events:none;padding:16px;font-weight:900;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.game-shell{background:var(--night);grid-template-rows:auto minmax(0,1fr);width:100%;height:100svh;display:grid;overflow:hidden}.game-hud{z-index:5;padding:max(8px, env(safe-area-inset-top)) max(10px, env(safe-area-inset-right)) 8px max(10px, env(safe-area-inset-left));border-bottom:4px solid var(--pixel-border);background:var(--panel);box-shadow:0 4px 0 var(--aqua-dark);grid-template-columns:auto auto auto minmax(240px,1fr);align-items:stretch;gap:8px;display:grid;position:relative}.room-chip,.roster-status,.map-status{border:3px solid var(--pixel-border);min-height:44px;color:var(--night);background:var(--lemon);box-shadow:3px 3px 0 var(--pixel-border);align-content:center;padding:5px 10px;line-height:1.05;display:grid}.roster-status{background:var(--aqua)}.map-status{background:var(--pink)}.stage-progress,.boss-progress{border:3px solid var(--pixel-border);background:var(--panel-deep);flex-wrap:wrap;grid-column:1/-1;align-items:center;gap:5px 18px;min-height:34px;padding:5px 10px;font-size:.78rem;font-weight:800;display:flex}.stage-progress strong,.boss-progress strong{color:var(--lemon)}.playtest-toolbar{border:2px solid var(--lemon);background:var(--panel-deep);flex-wrap:wrap;grid-column:1/-1;align-items:center;gap:8px 14px;padding:8px 10px;font-size:.78rem;font-weight:800;display:flex}.playtest-toolbar strong{color:var(--lemon)}.playtest-toolbar button,.playtest-toolbar a{color:var(--aqua);font:inherit;cursor:pointer}.playtest-toolbar button{background:0 0;border:0;text-decoration:underline}.playtest-toolbar input{min-width:0;font:inherit;flex-basis:100%;padding:6px}.stage-clear{z-index:9;background:#0c0920d1;place-items:center;padding:16px;display:grid;position:absolute;inset:0}.stage-clear-card{border:5px solid var(--pixel-border);background:var(--panel);width:min(540px,100%);box-shadow:8px 8px 0 var(--aqua-dark);text-align:center;padding:clamp(18px,4vw,32px)}.stage-clear-card h2{color:var(--lemon);margin:10px 0;font-size:clamp(1.5rem,5vw,2.5rem)}.stage-clear-card p{font-weight:800}.room-chip span,.roster-status span,.map-status span{margin-top:3px;font-size:.62rem;font-weight:800}.game-stage{min-height:0;position:relative;overflow:hidden}.quiz-panel{z-index:6;border:4px solid var(--pixel-border);width:min(340px,100% - 32px);color:var(--night);background:var(--lemon);box-shadow:6px 6px 0 var(--pixel-border);padding:12px;position:absolute;top:16px;right:16px}.team-gate-panel{z-index:6;border:4px solid var(--pixel-border);width:min(280px,100% - 32px);color:var(--night);background:var(--aqua);box-shadow:6px 6px 0 var(--pixel-border);padding:10px;font-weight:800;position:absolute;top:16px;left:16px}.team-gate-panel p{margin:8px 0 0}.team-gate-active{width:min(340px,100% - 32px);left:auto;right:16px}.team-gate-choices{grid-template-columns:repeat(4,1fr);gap:7px;margin-top:10px;display:grid}.team-gate-choices button{border:3px solid var(--pixel-border);min-height:56px;color:var(--night);background:var(--lemon);font:inherit;cursor:pointer}.team-gate-choices button:disabled{opacity:.48;cursor:not-allowed}.quiz-topline{justify-content:space-between;gap:8px;font-size:.78rem;display:flex}.quiz-prompt{text-align:center;margin:7px 0;font-size:clamp(1.3rem,3vw,1.7rem);font-weight:900}.quiz-choices{grid-template-columns:repeat(4,1fr);gap:7px;display:grid}.quiz-choices button,.quiz-result button{border:3px solid var(--pixel-border);min-width:0;min-height:56px;color:var(--night);background:var(--aqua);box-shadow:3px 3px 0 var(--pixel-border);cursor:pointer;font-size:1.1rem;font-weight:900}.quiz-choices button:disabled,.quiz-result button:disabled{opacity:.48;cursor:not-allowed}.quiz-choices button:focus-visible,.quiz-result button:focus-visible{outline:3px solid var(--night);outline-offset:2px}.quiz-hint,.quiz-result p{margin:5px 0 10px;font-size:.82rem;font-weight:800}.quiz-result button{background:var(--pink);width:100%}.game-canvas,.game-canvas canvas{display:block;width:100%!important;height:100%!important}.game-canvas{position:absolute;inset:0}.game-stage>.touch-controls{z-index:6;pointer-events:none;background:linear-gradient(#0000,#0c0920c7);position:absolute;bottom:0;left:0;right:0}.game-stage>.touch-controls button{pointer-events:auto}.game-error{z-index:8;border:4px solid var(--pixel-border);width:min(440px,100% - 32px);color:var(--night);background:var(--danger);box-shadow:6px 6px 0 var(--pixel-border);text-align:center;padding:14px;position:absolute;top:18px;left:50%;transform:translate(-50%)}.game-error p{margin:0 0 8px;font-weight:900}.game-error a,.invalid-room-card a,.reconnect-overlay a{border:3px solid var(--pixel-border);color:var(--night);background:var(--ink);box-shadow:3px 3px 0 var(--pixel-border);padding:9px 12px;font-weight:900;text-decoration:none;display:inline-block}.reconnect-overlay{z-index:7;border:4px solid var(--pixel-border);color:var(--night);background:var(--lemon);box-shadow:5px 5px 0 var(--pixel-border);align-items:center;gap:10px;padding:10px 14px;display:flex;position:absolute;top:18px;left:50%;transform:translate(-50%)}.reconnect-overlay p{white-space:nowrap;margin:0;font-size:.84rem;font-weight:900}.reconnect-spinner{background:var(--aqua-dark);width:14px;height:14px;animation:.8s steps(2,end) infinite reconnect-blink}.reconnect-expired{background:var(--danger);justify-items:center;min-width:min(360px,100% - 32px);display:grid}@keyframes reconnect-blink{50%{opacity:.25}}.invalid-room-shell{background:radial-gradient(circle at 50% 0, #43367c, var(--night) 60%);place-items:center;min-height:100svh;padding:24px;display:grid}.invalid-room-card{border:5px solid var(--pixel-border);background:var(--panel);width:min(620px,100%);padding:32px;box-shadow:10px 10px #090717}.invalid-room-card h1{letter-spacing:-.07em;font-size:clamp(2rem,7vw,4rem);line-height:1}@media (max-width:780px){.team-gate-panel:not(.team-gate-active){top:auto;bottom:108px}.game-hud{grid-template-columns:auto auto 1fr}.map-status{display:none}.game-hud .connection-banner{grid-column:1/-1;min-height:34px;padding-block:5px}}@media (max-width:600px){.touch-controls,.direction-controls,.action-controls{gap:6px}}@media (orientation:portrait){.game-hud{grid-template-columns:1fr 1fr}.map-status{display:none}.game-hud .connection-banner{grid-column:1/-1}}@media (max-height:540px){.quiz-panel{width:min(280px,100% - 16px);padding:7px;top:8px;right:8px}.quiz-prompt{margin:2px 0;font-size:1.2rem}.quiz-choices button,.quiz-result button{min-height:44px}.game-hud{grid-template-columns:auto auto 1fr;padding-block:5px}.map-status{display:none}.game-hud .connection-banner{min-height:38px}.touch-controls{padding-top:5px;padding-bottom:max(7px, env(safe-area-inset-bottom))}}@keyframes hero-bob{50%{transform:translateY(-8px)}}@media (max-width:720px){.lobby-card{grid-template-columns:minmax(0,1fr) 120px;padding:24px}.lumi-stage{min-height:160px}.lobby-form{grid-template-columns:1fr}.lobby-form button{width:100%;margin-top:0}.privacy-note{text-align:left}}@media (max-width:480px){.lobby-card{border-width:4px;grid-template-columns:1fr;box-shadow:8px 8px #090717}.lumi-stage{min-height:130px}.lumi-stage img{width:128px}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}