@keyframes cellPlace{0%{transform:scale(.35);filter:brightness(2.5)}65%{transform:scale(1.18);filter:brightness(1.3)}to{transform:scale(1);filter:brightness(1)}}@keyframes cellClear{0%{background-color:#fff;transform:scale(1.12);opacity:1}60%{background-color:#ffe566;transform:scale(1.05);opacity:.8}to{background-color:var(--cell-bg);transform:scale(1);opacity:1}}@keyframes scoreBump{0%{transform:scale(1);color:var(--text)}40%{transform:scale(1.55);color:gold}to{transform:scale(1);color:var(--text)}}@keyframes overlayCardIn{0%{transform:scale(.75) translateY(30px);opacity:0}to{transform:scale(1) translateY(0);opacity:1}}@keyframes comboTextAnim{0%{transform:translate(-50%,-50%) scale(.6);opacity:1}55%{transform:translate(-50%,-80%) scale(1.25);opacity:1}to{transform:translate(-50%,-120%) scale(1);opacity:0}}@keyframes traySlotIn{0%{transform:scale(.55) rotate(-8deg);opacity:0}to{transform:scale(1) rotate(0);opacity:1}}@keyframes boardShake{0%,to{transform:translate(0)}20%{transform:translate(-4px)}40%{transform:translate(4px)}60%{transform:translate(-3px)}80%{transform:translate(3px)}}@keyframes boardShakeHard{0%,to{transform:translate(0)}15%{transform:translate(-7px,-2px)}30%{transform:translate(7px,2px)}45%{transform:translate(-5px,-1px)}60%{transform:translate(5px,1px)}75%{transform:translate(-3px)}90%{transform:translate(3px)}}@keyframes boardShakeUltra{0%,to{transform:translate(0) scale(1)}10%{transform:translate(-12px,-5px) scale(.98)}25%{transform:translate(12px,5px) scale(1.02)}40%{transform:translate(-9px,-3px) scale(.99)}55%{transform:translate(9px,3px) scale(1.01)}70%{transform:translate(-5px) scale(1)}85%{transform:translate(5px)}}.board-cell.cell-placed{animation:cellPlace .32s cubic-bezier(.175,.885,.32,1.275) forwards}.board-cell.cell-cleared{animation:cellClear .48s ease-out forwards}.score-bump{animation:scoreBump .42s ease-out forwards;display:inline-block}.overlay:not(.hidden) .overlay-card{animation:overlayCardIn .38s cubic-bezier(.175,.885,.32,1.275) forwards}.combo-text{position:absolute;top:50%;left:50%;font-size:1.8rem;font-weight:900;color:gold;text-shadow:0 0 18px rgba(255,215,0,.85),0 2px 8px rgba(0,0,0,.5);pointer-events:none;white-space:nowrap;z-index:10;animation:comboTextAnim 1s ease-out forwards}.tray-slot.new-piece{animation:traySlotIn .38s cubic-bezier(.175,.885,.32,1.275) both}.board-wrapper.shake{animation:boardShake .35s ease-out}.board-wrapper.shake-hard{animation:boardShakeHard .45s ease-out}.board-wrapper.shake-ultra{animation:boardShakeUltra .55s ease-out}.drag-float{position:fixed;pointer-events:none;z-index:200;transform:none;opacity:.93;filter:drop-shadow(0 4px 14px rgba(0,0,0,.55));transition:none}.welcome-sub{font-size:.95rem;color:var(--text-dim);max-width:220px;line-height:1.5;text-align:center}.difficulty-label{font-size:.65rem;letter-spacing:2px;color:var(--text-dim);text-transform:uppercase;text-align:center;margin-bottom:-4px}.diff-btn{padding:13px 0;width:180px;font-size:.95rem;font-weight:700;border:2px solid;border-radius:var(--radius);background:transparent;cursor:pointer;letter-spacing:1px;transition:opacity .15s ease,transform .1s ease}.diff-btn:active{opacity:.8;transform:scale(.97)}.diff-easy{border-color:#0c4;color:#0c4;box-shadow:0 0 14px #00cc4459}.diff-medium{border-color:#fc0;color:#fc0;box-shadow:0 0 14px #ffcc0059}.diff-hard{border-color:var(--accent);color:var(--accent);box-shadow:0 0 14px #ff005059}.diff-insane{border-color:#f4f;color:#f4f;box-shadow:0 0 18px #ff44ff8c,0 0 4px #fff9 inset;font-weight:800;letter-spacing:1px}.diff-daily{border-color:#0df;color:#0df;box-shadow:0 0 16px #00ddff73;letter-spacing:.5px}.onboarding-card{max-width:360px;text-align:left}.onboarding-steps{margin:14px 0 12px;padding-left:22px;line-height:1.5;font-size:.92rem;color:var(--text)}.onboarding-steps li{margin-bottom:6px}.onboarding-hint{font-size:.82rem;color:var(--text-dim);margin:8px 0 14px;line-height:1.5}.onboarding-hint kbd{background:#ffffff14;border:1px solid rgba(255,255,255,.18);border-radius:4px;padding:1px 5px;font-family:ui-monospace,monospace;font-size:.75rem;color:var(--text)}.stats-grid{display:grid;grid-template-columns:1fr auto;gap:6px 14px;margin:16px 0;padding:0;font-size:.92rem}.stats-grid dt{color:var(--text-dim);text-align:left;font-weight:500}.stats-grid dd{margin:0;color:var(--text);font-weight:700;font-variant-numeric:tabular-nums}.achievement-toast-container{position:fixed;top:12px;right:12px;display:flex;flex-direction:column;gap:8px;z-index:1000;pointer-events:none;max-width:min(320px,calc(100% - 24px))}@keyframes achievementIn{0%{transform:translate(120%);opacity:0}to{transform:translate(0);opacity:1}}@keyframes achievementOut{to{transform:translate(120%);opacity:0}}.achievement-toast{background:#141228f0;border:2px solid #ffd700;border-radius:12px;padding:10px 14px;display:flex;align-items:center;gap:10px;box-shadow:0 0 18px #ffd70073,0 4px 18px #0006;color:#fff;animation:achievementIn .32s cubic-bezier(.175,.885,.32,1.275) forwards}.achievement-toast.leaving{animation:achievementOut .36s ease-in forwards}.achievement-icon{display:inline-flex;align-items:center;justify-content:center;width:26px;height:26px;color:gold;flex-shrink:0}.achievement-icon .icon{width:22px;height:22px}.achievement-title{font-size:.85rem;font-weight:700;color:gold;letter-spacing:.5px}.achievement-desc{font-size:.8rem;color:#ffffffd9}@media (prefers-reduced-motion: reduce){.achievement-toast,.achievement-toast.leaving{animation:none}}@keyframes orbFloat1{0%,to{transform:translate(0) scale(1)}33%{transform:translate(80px,-60px) scale(1.25)}66%{transform:translate(-40px,80px) scale(.85)}}@keyframes orbFloat2{0%,to{transform:translate(0) scale(1)}40%{transform:translate(-90px,50px) scale(1.15)}70%{transform:translate(60px,-100px) scale(.9)}}@keyframes orbFloat3{0%,to{transform:translate(0) scale(1)}55%{transform:translate(70px,80px) scale(1.2)}}@keyframes orbFloat4{0%,to{transform:translate(0) scale(1)}45%{transform:translate(-70px,-50px) scale(1.1)}80%{transform:translate(50px,60px) scale(.95)}}@keyframes beamSpin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@keyframes neonBrickIn{0%{transform:translateY(-30px) scale(.6) rotate(-5deg);opacity:0}to{transform:translateY(0) scale(1) rotate(0);opacity:1}}@keyframes neonGlow{0%,to{filter:brightness(1)}50%{filter:brightness(1.45)}}.overlay.main-menu{background:#04060ef7;-webkit-backdrop-filter:none;backdrop-filter:none}.menu-bg{position:absolute;top:0;right:0;bottom:0;left:0;overflow:hidden;pointer-events:none}.disco-orb{position:absolute;border-radius:50%;filter:blur(90px)}.orb-1{width:380px;height:380px;background:radial-gradient(circle,rgba(255,0,128,.65) 0%,transparent 70%);top:-120px;left:-100px;animation:orbFloat1 9s ease-in-out infinite}.orb-2{width:300px;height:300px;background:radial-gradient(circle,rgba(0,255,255,.55) 0%,transparent 70%);bottom:-80px;right:-80px;animation:orbFloat2 11s ease-in-out infinite}.orb-3{width:250px;height:250px;background:radial-gradient(circle,rgba(255,200,0,.5) 0%,transparent 70%);top:40%;right:-60px;animation:orbFloat3 7s ease-in-out infinite}.orb-4{width:280px;height:280px;background:radial-gradient(circle,rgba(0,180,255,.5) 0%,transparent 70%);bottom:20%;left:-80px;animation:orbFloat4 13s ease-in-out infinite}.orb-5{width:200px;height:200px;background:radial-gradient(circle,rgba(100,0,255,.5) 0%,transparent 70%);top:20%;left:30%;animation:orbFloat1 6s ease-in-out infinite reverse}.orb-6{width:220px;height:220px;background:radial-gradient(circle,rgba(255,50,120,.45) 0%,transparent 70%);top:60%;right:20%;animation:orbFloat2 8s ease-in-out 2s infinite}.disco-beam{position:absolute;width:250%;height:250%;top:-75%;left:-75%;background:conic-gradient(transparent 0deg,rgba(0,255,255,.045) 15deg,transparent 30deg,transparent 175deg,rgba(255,0,255,.045) 190deg,transparent 205deg,transparent 340deg,rgba(255,200,0,.03) 355deg,transparent 360deg);animation:beamSpin 12s linear infinite}.disco-beam-2{position:absolute;width:200%;height:200%;top:-50%;left:-50%;background:conic-gradient(transparent 0deg,rgba(0,180,255,.04) 20deg,transparent 40deg,transparent 155deg,rgba(100,0,255,.04) 175deg,transparent 195deg);animation:beamSpin 18s linear infinite reverse}.menu-content{position:relative;z-index:1;display:flex;flex-direction:column;align-items:center;gap:20px}.neon-title{display:flex;flex-direction:column;align-items:center;gap:8px}.neon-row{display:flex;gap:5px}.neon-brick{display:flex;align-items:center;justify-content:center;width:46px;height:54px;border-radius:6px;font-size:1.75rem;font-weight:900;color:var(--neon, #ffffff);background:#0006;border:2px solid var(--neon, #ffffff);box-shadow:0 0 8px var(--neon, #ffffff),0 0 20px var(--neon, #ffffff);text-shadow:0 0 10px var(--neon, #ffffff),0 0 20px var(--neon, #ffffff);animation:neonBrickIn .5s cubic-bezier(.175,.885,.32,1.275) var(--delay, 0ms) both,neonGlow 2.5s ease-in-out 0s infinite}.menu-buttons{display:flex;flex-direction:column;align-items:center;gap:12px;margin-top:8px}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}:root{--bg: #050810;--surface: #0a0e1a;--accent: #ff0050;--text: #eaeaea;--text-dim: #6677aa;--cell-bg: #050a18;--cell-border: #0d1f40;--radius: 8px;--gap: 2px}html,body{width:100%;height:100%;overflow:hidden;background:var(--bg);color:var(--text);font-family:Segoe UI,system-ui,sans-serif;touch-action:none;user-select:none;-webkit-user-select:none}.game-wrapper{display:flex;flex-direction:column;height:100dvh;max-width:480px;margin:0 auto;padding:12px 12px env(safe-area-inset-bottom,12px)}.game-header{display:flex;justify-content:space-between;align-items:center;padding:8px 4px}.title{font-size:1.3rem;font-weight:800;letter-spacing:2px;color:var(--accent);text-transform:uppercase}.score-block{display:flex;flex-direction:column;align-items:center;min-width:70px}.score-label{font-size:.6rem;letter-spacing:2px;color:var(--text-dim)}.score-value{font-size:1.4rem;font-weight:700;color:var(--text);min-width:60px;text-align:center}.header-actions{display:flex;align-items:center;justify-content:center;gap:12px;padding:4px 0 8px}body[data-game-active=false] .header-actions{display:none}.icon-btn{background:transparent;border:2px solid rgba(102,119,170,.4);border-radius:var(--radius);color:var(--text-dim);cursor:pointer;padding:6px;line-height:0;display:inline-flex;align-items:center;justify-content:center;gap:2px;min-width:36px;min-height:36px;transition:border-color .15s ease,color .15s ease,opacity .15s ease,background .15s ease}.icon-btn .icon{width:20px;height:20px;display:block}.icon-btn:hover:not([disabled]),.icon-btn:focus-visible{border-color:var(--accent);color:var(--accent)}.icon-btn[aria-pressed=true]{background:#ff008014;border-color:#ff00808c;color:var(--accent)}#mute-btn[aria-pressed=true],#music-btn[aria-pressed=false]{opacity:.55;background:transparent;border-color:#67a6;color:var(--text-dim)}.pause-btn{border-color:#ffcc008c;color:#fc0}.pause-btn:hover:not([disabled]),.pause-btn:focus-visible{border-color:#fc0;color:#fc0;box-shadow:0 0 10px #ffcc0073}.pause-toggles{display:flex;justify-content:center;gap:12px;margin:8px 0 12px}.pause-toggles .icon-btn{flex-direction:row;gap:6px;padding:8px 14px;min-height:40px}.pause-toggles .icon-btn .btn-label{font-size:.75rem;letter-spacing:1px;text-transform:uppercase;line-height:1}@keyframes pausePulse{0%,to{box-shadow:0 0 #fc00}50%{box-shadow:0 0 14px #ffcc00a6}}body[data-game-active=true] #pause-btn{animation:pausePulse 1.6s ease-in-out 2}@media (prefers-reduced-motion: reduce){body[data-game-active=true] #pause-btn{animation:none}}#undo-btn .badge{font-size:.65rem;color:var(--accent);font-weight:700;min-width:.8em;text-align:center;line-height:1}#undo-btn[disabled]{opacity:.35;cursor:not-allowed}.btn-icon{display:inline-flex;align-items:center;justify-content:center;margin-right:6px;vertical-align:middle}.btn-icon .icon,.btn-label{vertical-align:middle}.diff-btn{display:inline-flex;align-items:center;justify-content:center}.diff-btn .btn-icon{margin-right:8px}.pause-card .pause-title-icon{display:inline-flex;align-items:center;justify-content:center;margin-right:6px;color:var(--accent);vertical-align:middle}body[data-paused=true] .game-wrapper,body[data-paused=true] .board-wrapper,body[data-paused=true] .tray-wrapper{pointer-events:none}body[data-paused=true] .game-wrapper *:not(#pause-overlay):not(#pause-overlay *){animation-play-state:paused!important}body[data-paused=true] #pause-overlay,body[data-paused=true] #pause-overlay *{pointer-events:auto}.board-wrapper{flex:1;display:flex;align-items:center;justify-content:center;padding:8px 0;position:relative}.board-wrapper>canvas{position:absolute;top:0;left:0;pointer-events:none}.board{display:grid;grid-template-columns:repeat(10,1fr);grid-template-rows:repeat(10,1fr);gap:var(--gap);width:min(calc(100vw - 24px),calc(100dvh - 260px));height:min(calc(100vw - 24px),calc(100dvh - 260px));aspect-ratio:1;background:var(--surface);border-radius:var(--radius);padding:4px;border:2px solid #0d1f40;touch-action:none}.board-cell{border-radius:3px;background:transparent;border:1px solid transparent}.board-cell.filled{background:transparent;border-color:transparent}.board-cell.ghost-valid{background:transparent;border-color:transparent;position:relative}.board-cell.ghost-invalid{background:#ff3c3c2e!important;border-color:#ff3c3c8c;position:relative}.board-cell[data-kbd-cursor=true]{outline:2px solid var(--accent, #ff0080);outline-offset:1px;box-shadow:0 0 8px #ff008099,0 0 16px #ff008059;z-index:2}.board-cell.ghost-invalid:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23ff6464' stroke-width='3' stroke-linecap='round'><line x1='6' y1='6' x2='18' y2='18'/><line x1='18' y1='6' x2='6' y2='18'/></svg>");background-repeat:no-repeat;background-position:center;background-size:60% 60%;pointer-events:none;filter:drop-shadow(0 0 2px rgba(0,0,0,.55))}.tray-wrapper{padding:8px 0 4px}.tray-secondary-row{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:6px}.next-preview{flex:1;display:flex;justify-content:center;align-items:center;gap:12px;min-height:24px;opacity:.55}.hold-slot{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;min-width:56px;min-height:38px;padding:4px 6px;background:var(--surface);border:2px dashed rgba(102,119,170,.5);border-radius:var(--radius);color:var(--text-dim);cursor:pointer;transition:border-color .15s ease,opacity .15s ease}.hold-slot:hover:not([disabled]),.hold-slot:focus-visible{border-color:var(--accent)}.hold-slot[data-used=true],.hold-slot[disabled]{opacity:.45;cursor:not-allowed}.hold-label{font-size:.55rem;letter-spacing:1.5px;color:var(--text-dim)}.hold-content{display:flex;align-items:center;justify-content:center;min-height:14px}.hold-content:empty:after{content:"—";color:var(--text-dim);font-size:.85rem}.next-preview:before{content:"NEXT";font-size:.65rem;letter-spacing:1.5px;color:var(--text-dim);margin-right:4px;align-self:center}.next-slot{display:flex;align-items:center;justify-content:center;padding:2px}.piece-preview-mini{gap:1px}.piece-preview-mini .preview-cell{width:7px;height:7px;border-radius:1px}.piece-preview-mini .preview-cell.filled{border-width:0;box-shadow:none}.tray{display:flex;justify-content:space-around;align-items:center;gap:8px}.tray-slot{flex:1;min-height:80px;display:flex;align-items:center;justify-content:center;background:var(--surface);border:2px solid var(--cell-border);border-radius:var(--radius);cursor:pointer;transition:transform .15s ease,border-color .15s ease;padding:6px}.tray-slot.selected{border-color:var(--accent);transform:scale(1.05);box-shadow:0 0 14px #ff00508c}.tray-slot.placed{opacity:.25;cursor:default}.piece-preview{display:grid;gap:2px;width:fit-content}.preview-cell{width:14px;height:14px;border-radius:2px;background:transparent}.preview-cell.filled{border:1px solid rgba(255,255,255,.25);box-shadow:0 0 4px currentColor}.leaderboard-panel{margin-top:8px;background:var(--surface);border:2px solid var(--cell-border);border-radius:var(--radius);padding:10px 12px}.leaderboard-actions{display:flex;gap:8px;justify-content:center;margin-top:12px;flex-wrap:wrap}.leaderboard-actions button{flex:1 1 auto;min-width:120px}.leaderboard-panel h3{font-size:.9rem;text-transform:uppercase;letter-spacing:1px;color:var(--text);margin-bottom:8px}.leaderboard-list{list-style:none;display:flex;flex-direction:column;gap:4px;min-height:36px}.leaderboard-item,.leaderboard-empty{display:grid;grid-template-columns:38px 1fr auto;align-items:center;gap:8px;font-size:.84rem;color:var(--text)}.leaderboard-empty{grid-template-columns:1fr;color:var(--text-dim)}.leaderboard-rank{color:var(--text-dim);font-weight:700}.leaderboard-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.leaderboard-score{font-weight:700}.leaderboard-status{margin-top:8px;min-height:16px;font-size:.74rem;color:var(--text-dim)}.overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#000000bf;display:flex;align-items:center;justify-content:center;z-index:100;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.overlay.hidden{display:none}.overlay-card{background:var(--surface);border:2px solid var(--accent);border-radius:16px;padding:32px 40px;text-align:center;display:flex;flex-direction:column;gap:16px}.overlay-card h2{font-size:2rem;font-weight:800;color:var(--accent)}.overlay-card p{font-size:1.1rem;color:var(--text-dim)}.overlay-card strong{color:var(--text)}.name-entry{display:flex;flex-direction:column;gap:8px}.name-entry.hidden{display:none}.name-entry-title{font-size:.95rem;color:var(--text)}#name-input{padding:10px 12px;border:1px solid var(--cell-border);border-radius:var(--radius);background:#0b1020;color:var(--text);text-align:center;text-transform:uppercase;letter-spacing:1px;user-select:text;-webkit-user-select:text;touch-action:manipulation}#submit-score-btn{padding:10px 18px;border:none;border-radius:var(--radius);background:#00a86b;color:#fff;font-weight:700;cursor:pointer}#submit-score-btn:disabled{opacity:.55;cursor:not-allowed}.name-entry-error{min-height:18px;color:#ff8f8f;font-size:.78rem}#restart-btn,#resume-btn,#submit-score-btn,#onboarding-dismiss-btn{display:inline-flex;align-items:center;justify-content:center}#restart-btn{margin-top:8px;padding:14px 32px;font-size:1rem;font-weight:700;border:none;border-radius:var(--radius);background:var(--accent);color:#fff;cursor:pointer;letter-spacing:1px;transition:opacity .15s ease}#restart-btn:active{opacity:.8}#menu-btn,#pause-menu-btn,#close-stats-btn{display:inline-flex;align-items:center;justify-content:center}#menu-btn{padding:12px 32px;font-size:.95rem;font-weight:700;border:2px solid rgba(102,119,170,.6);border-radius:var(--radius);background:transparent;color:var(--text-dim);cursor:pointer;letter-spacing:1px;transition:border-color .2s ease,color .2s ease}#menu-btn:active{border-color:var(--text);color:var(--text)}#close-leaderboard-btn{padding:12px 32px;font-size:.95rem;font-weight:700;border:2px solid rgba(102,119,170,.6);border-radius:var(--radius);background:transparent;color:var(--text-dim);cursor:pointer;letter-spacing:1px}@media (prefers-reduced-motion: reduce){.disco-orb,.disco-beam,.disco-beam-2{animation:none}.disco-orb{filter:blur(40px)}.neon-brick{animation:none;opacity:1;transform:none}.board-wrapper.shake,.board-wrapper.shake-hard,.board-wrapper.shake-ultra{animation:none}.board-cell.cell-placed,.board-cell.cell-cleared,.score-bump,.tray-slot.new-piece,.combo-text,.overlay:not(.hidden) .overlay-card{animation:none!important}}@media (max-width: 400px){.disco-orb{filter:blur(50px)}}