:root{color-scheme:dark;--bg:#090b10;--bg2:#0e1118;--surface:#121620;--surface2:#171c27;--ink:#f4f6f8;--muted:#8b94a5;--line:rgba(255,255,255,.09);--lime:#c8ff55;--cyan:#63e6ff;--purple:#9a7cff;--red:#ff6b70;--gold:#ffc857;--shadow:0 30px 90px rgba(0,0,0,.38);--r:24px;--rs:14px}
:root[data-theme="light"]{color-scheme:light;--bg:#edf0f3;--bg2:#f7f8fa;--surface:#fff;--surface2:#f3f5f7;--ink:#0b0e14;--muted:#646d7c;--line:rgba(10,15,25,.11);--shadow:0 24px 70px rgba(20,30,45,.12)}
*{box-sizing:border-box}html{scroll-behavior:smooth}html,body{min-height:100%}body{margin:0;background:var(--bg);color:var(--ink);font-family:"DM Sans","Noto Sans KR",sans-serif;overflow-x:hidden}body::before{position:fixed;inset:0;z-index:-3;background-image:linear-gradient(rgba(255,255,255,.018) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.018) 1px,transparent 1px);background-size:52px 52px;content:""}.ambient{position:fixed;z-index:-2;width:520px;height:520px;border-radius:50%;filter:blur(120px);opacity:.11;pointer-events:none}.ambient-one{top:-260px;right:10%;background:var(--lime)}.ambient-two{bottom:-280px;left:-160px;background:var(--purple)}button,input,textarea,a{font:inherit}button{border:0;color:inherit;cursor:pointer}button:disabled{cursor:not-allowed;opacity:.55}a{color:inherit}.app-shell{width:min(1320px,100%);margin:auto;padding:18px 24px 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rgba(200,255,85,.35);border-radius:50%;background:rgba(200,255,85,.1);box-shadow:0 0 100px rgba(200,255,85,.22),inset 0 0 35px rgba(200,255,85,.12);color:var(--lime);font-size:46px;font-weight:800}.orbit{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%) rotate(-18deg);border:1px solid rgba(255,255,255,.12);border-radius:50%}.orbit-a{width:350px;height:350px}.orbit-b{width:530px;height:260px;transform:translate(-50%,-50%) rotate(34deg)}.floating-card{display:grid;position:absolute;z-index:4;width:150px;height:190px;place-items:center;border:1px solid rgba(255,255,255,.16);border-radius:22px;background:linear-gradient(145deg,rgba(255,255,255,.12),rgba(255,255,255,.035));box-shadow:0 28px 70px rgba(0,0,0,.35);backdrop-filter:blur(15px);animation:float 5s ease-in-out infinite}.floating-card span{font-size:54px}.floating-card small{align-self:end;margin-bottom:18px;color:var(--muted);font-size:9px;letter-spacing:.2em}.card-a{top:12%;left:18%;transform:rotate(-12deg)}.card-a 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rgba(200,255,85,.22);border-radius:20px;padding:7px 10px;background:rgba(200,255,85,.07);color:var(--lime);font-size:9px;letter-spacing:.1em}.rating-rules,.stat-grid,.result-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.rating-rules article strong,.stat-grid article strong,.result-stats article strong{font-size:24px}.rating-panel .full-button{grid-column:1/-1;width:100%}.leaderboard{display:grid;gap:8px}.leaderboard-row{display:grid;grid-template-columns:44px 1fr auto;gap:12px;align-items:center;border:1px solid var(--line);border-radius:14px;padding:14px;background:var(--surface2)}.leaderboard-row .rank{display:grid;width:32px;height:32px;place-items:center;border-radius:10px;background:var(--lime);color:#090b10;font-weight:800}.leaderboard-empty,.feed-empty{color:var(--muted)}.community-layout{display:grid;grid-template-columns:.72fr 1.28fr;gap:12px;align-items:start}.post-form{padding:28px}.post-preview,.post-image{width:100%;max-height:420px;object-fit:cover;border-radius:14px}.post-feed{display:grid;gap:12px}.post-card{display:grid;gap:13px;border:1px solid var(--line);border-radius:20px;padding:24px;background:var(--surface)}.post-meta{display:flex;justify-content:space-between;color:var(--muted);font-size:11px}.post-card p{margin:0;color:var(--muted);line-height:1.65}.like-button{justify-self:start;border:1px solid var(--line);border-radius:22px;padding:9px 13px;background:var(--surface2)}.like-button.active{border-color:var(--red);color:var(--red)}.hidden{display:none!important}footer{display:flex;justify-content:space-between;margin-top:60px;padding:24px 4px;border-top:1px solid var(--line);color:var(--muted);font-size:10px;letter-spacing:.12em}footer p{margin:0}.game-active{overflow:hidden}.game-active .app-shell{height:100vh;padding:12px;overflow:hidden}.game-active .topbar,.game-active footer{display:none}.game-layout{display:grid;grid-template-columns:280px 1fr;gap:12px;height:calc(100vh - 24px)}.status-panel{display:flex;flex-direction:column;gap:16px;padding:20px}.timer-wrap{display:grid;justify-items:center;text-align:center}.timer-ring{display:grid;width:112px;height:112px;place-items:center;border:8px solid var(--surface2);border-top-color:var(--lime);border-radius:50%;box-shadow:0 0 40px rgba(200,255,85,.08)}.timer-ring span{font-size:38px;font-weight:700}#statusMessage{min-height:42px;color:var(--muted);font-size:13px}.stat-grid{grid-template-columns:repeat(2,1fr)}.board-wrap{display:grid;min-height:0;padding:12px}.board{display:grid;position:relative;align-self:center;justify-self:center;width:min(100%,calc((100vh - 64px)*var(--ratio)));max-height:calc(100vh - 64px);gap:var(--card-gap);grid-template-columns:repeat(var(--cols),minmax(0,1fr));grid-template-rows:repeat(var(--rows),minmax(0,1fr));aspect-ratio:var(--cols)/var(--rows);--cols:4;--rows:4;--ratio:1;--card-gap:8px}.board.easy{--cols:4;--rows:2;--ratio:2}.board.hard,.board.rating-large{--cols:6;--rows:5;--ratio:1.2;--card-gap:7px}.card{position:relative;min-width:0;min-height:0;border-radius:12px;perspective:900px;background:transparent}.card-inner{position:absolute;inset:0;transform-style:preserve-3d;transition:transform .2s}.card.revealed .card-inner,.card.matched .card-inner{transform:rotateY(180deg)}.card-front,.card-back{display:grid;position:absolute;inset:0;place-items:center;overflow:hidden;border-radius:12px;backface-visibility:hidden}.card-back{border:2px solid rgba(255,255,255,.08);background:radial-gradient(circle at center,rgba(200,255,85,.14),transparent 8%),linear-gradient(145deg,#202735,#11151d);box-shadow:inset 0 0 0 1px rgba(255,255,255,.04)}.card-back::after{content:"M";color:rgba(255,255,255,.2);font-weight:800}.card-front{grid-template-rows:1fr auto;transform:rotateY(180deg);border:1px solid var(--line);padding:8px;background:var(--surface2)}.card-symbol{align-self:center;font-size:clamp(22px,4.2vw,54px);font-weight:800}.card-index{color:var(--muted);font-size:12px}.face-blue{color:#64a4ff}.face-pink{color:#ff77ae}.face-green{color:#63e6a2}.face-orange{color:#ff9c55}.face-purple{color:#a98aff}.face-red{color:#ff6b70}.face-yellow{color:#ffd45f}.face-dark{color:#a6b0c0}.card.matched .card-inner{opacity:.15;transform:rotateY(180deg) scale(.82)}.card.matching .card-inner{animation:matchPop .52s ease forwards}.card.matching::after,.demo-card.matched::after{position:absolute;inset:-8px;border:2px solid var(--lime);border-radius:inherit;animation:matchRing .56s ease forwards;content:""}.match-float{position:absolute;z-index:6;transform:translate(-50%,-50%);border:1px solid var(--lime);border-radius:22px;padding:7px 12px;background:var(--surface);color:var(--lime);font-weight:800;animation:floatScore .76s ease forwards}.card.wrong .card-inner{animation:shake .23s}.result-overlay{display:grid;position:fixed;inset:0;z-index:30;place-items:center;padding:18px;background:rgba(3,5,8,.75);backdrop-filter:blur(12px)}.result-panel{width:min(570px,100%);padding:32px}.result-stats{grid-template-columns:repeat(2,1fr);margin:22px 0}.full-button{width:100%}
@keyframes shake{0%,100%{transform:translateX(0)}35%{transform:translateX(-5px)}70%{transform:translateX(5px)}}@keyframes matchPop{0%{transform:scale(1) rotateY(180deg)}42%{filter:brightness(1.5);transform:scale(1.12) rotateY(180deg)}100%{opacity:.15;transform:scale(.78) rotateY(180deg)}}@keyframes matchRing{0%{opacity:0;transform:scale(.9)}35%{opacity:.8}100%{opacity:0;transform:scale(1.25)}}@keyframes floatScore{0%{opacity:0;transform:translate(-50%,-30%)}30%{opacity:1;transform:translate(-50%,-70%)}100%{opacity:0;transform:translate(-50%,-130%)}}
@media(max-width:980px){.app-shell{padding-inline:14px}.topnav{max-width:55vw;overflow:auto;justify-content:flex-start}.topnav a{white-space:nowrap}.hero-panel{grid-template-columns:1fr}.hero-visual{min-height:380px}.dashboard-strip,.practice-layout,.rating-panel,.auth-panel,.community-layout,.match-demo-panel{grid-template-columns:1fr}.menu-grid{grid-template-columns:repeat(2,1fr)}.intro-grid{grid-template-columns:1fr}.intro-panel{min-height:250px}.intro-symbol{margin-top:35px}.match-demo-panel{gap:28px}}
@media(max-width:680px){.app-shell{padding:10px}.topbar{position:relative;top:0;flex-wrap:wrap}.brand-copy,.user-card span,.user-card small{display:none}.user-card{display:block;min-width:auto;padding:8px;border:0}.user-card strong{font-size:16px}.topnav{order:3;width:100%;max-width:none;justify-content:flex-start;border-top:1px solid var(--line);padding-top:8px}.hero-panel{min-height:auto}.hero-content{padding:38px 24px}.hero-content h1{font-size:47px}.hero-visual{min-height:330px}.floating-card{width:112px;height:144px}.floating-card span{font-size:39px}.pulse-core{width:84px;height:84px}.orbit-a{width:260px;height:260px}.orbit-b{width:360px}.dashboard-strip{margin-bottom:46px}.hero-metrics article{padding:8px;border-left:0;border-top:1px solid var(--line)}.section-intro{align-items:start;flex-direction:column}.menu-grid{grid-template-columns:1fr}.menu-card{min-height:260px}.page-heading{padding:38px 24px}.page-heading h1{font-size:43px}.intro-demo-board{grid-template-columns:repeat(2,1fr)}.demo-card{min-height:120px}.rating-rules{grid-template-columns:1fr}.game-layout{grid-template-columns:1fr;grid-template-rows:auto 1fr}.status-panel{display:grid;grid-template-columns:1fr auto;gap:8px;padding:10px}.timer-ring{width:70px;height:70px;border-width:6px}.timer-ring span{font-size:23px}#statusMessage{min-height:0}.stat-grid{grid-column:1/-1;grid-template-columns:repeat(4,1fr);gap:5px}.stat-grid article{padding:7px}.stat-grid article strong{font-size:16px}.status-panel .button-row{grid-column:1/-1}.board{--card-gap:5px;width:min(100%,calc((100vh - 250px)*var(--ratio)));max-height:calc(100vh - 250px)}.board.hard,.board.rating-large{--cols:5;--rows:6;--ratio:.84}.result-stats{grid-template-columns:1fr 1fr}footer{flex-direction:column;gap:8px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;animation-duration:.01ms!important;transition-duration:.01ms!important}}

/* Classic mode 1.0.9 */
@media(min-width:981px){.menu-grid{grid-template-columns:repeat(5,1fr)}.menu-card{min-height:300px;padding:20px}.menu-card strong{font-size:21px}}
.menu-card.classic-featured{background:linear-gradient(145deg,color-mix(in srgb,var(--purple),var(--surface) 88%),var(--surface))}.menu-card.classic-featured .menu-icon,.menu-card.classic-featured b{color:var(--purple)}
.classic-panel{padding:clamp(24px,4vw,42px)}.classic-toolbar{display:flex;align-items:end;justify-content:space-between;gap:24px}.classic-tabs{display:flex;gap:8px;padding:5px;border:1px solid var(--line);border-radius:14px;background:var(--surface2)}.classic-tab{min-width:88px;border-radius:10px;padding:11px 16px;background:transparent;color:var(--muted);font-weight:700}.classic-tab.active{background:var(--lime);color:#080b0e}.classic-progress{display:grid;gap:9px;margin:28px 0 20px;color:var(--muted);font-size:12px;font-weight:700}.classic-progress>div{height:8px;overflow:hidden;border-radius:8px;background:var(--surface2)}.classic-progress i{display:block;width:0;height:100%;border-radius:inherit;background:linear-gradient(90deg,var(--lime),var(--cyan));transition:width .3s}.classic-stage-grid{display:grid;grid-template-columns:repeat(10,1fr);gap:9px}.classic-stage{display:grid;min-height:82px;place-items:center;border:1px solid var(--line);border-radius:14px;background:var(--surface2);transition:.2s}.classic-stage span{font-size:21px;font-weight:800}.classic-stage small{color:var(--muted);font-size:8px;letter-spacing:.1em}.classic-stage:not(:disabled):hover{transform:translateY(-3px);border-color:var(--lime)}.classic-stage.cleared{border-color:rgba(200,255,85,.32);background:color-mix(in srgb,var(--lime),var(--surface2) 94%)}.classic-stage.cleared small{color:var(--lime)}.classic-stage.current{box-shadow:inset 0 0 0 1px var(--lime),0 0 24px rgba(200,255,85,.08)}.classic-stage:disabled{background:color-mix(in srgb,var(--bg),var(--surface2) 60%);color:var(--muted);opacity:.48}.classic-help{margin:20px 0 0;color:var(--muted);font-size:12px;line-height:1.6}
@media(max-width:980px){.classic-stage-grid{grid-template-columns:repeat(6,1fr)}}
@media(max-width:680px){.classic-toolbar{align-items:stretch;flex-direction:column}.classic-tabs{width:100%}.classic-tab{min-width:0;flex:1}.classic-stage-grid{grid-template-columns:repeat(5,1fr);gap:6px}.classic-stage{min-height:68px}.classic-stage span{font-size:18px}}

/* Account, friends and versus 1.0.9 */
.reset-box{margin-top:18px;border-top:1px solid var(--line);padding-top:16px}.reset-box summary{cursor:pointer;color:var(--lime);font-size:13px;font-weight:700}.reset-box form,.inline-form{display:flex;gap:8px;margin-top:12px}.reset-box input,.inline-form input{min-width:0;height:48px;flex:1;border:1px solid var(--line);border-radius:12px;padding:0 14px;background:var(--surface2);color:var(--ink)}.social-layout{display:grid;grid-template-columns:1fr 1fr;gap:12px}.social-panel{padding:clamp(24px,4vw,42px)}.public-room-panel{grid-column:1/-1}.friend-list,.match-list,.room-list{display:grid;gap:8px;margin-top:20px}.friend-list article,.match-list article,.room-list article{display:flex;align-items:center;justify-content:space-between;gap:12px;border:1px solid var(--line);border-radius:14px;padding:14px;background:var(--surface2)}.friend-list article>div:first-child,.match-list article>div:first-child,.room-list article>div:first-child{display:grid;gap:4px}.friend-list small,.match-list small,.room-list small{color:var(--muted)}.row-actions{display:flex!important;gap:6px}.delete-button{display:grid;width:42px;height:42px;place-items:center;border:1px solid rgba(255,107,112,.28);border-radius:11px;background:rgba(255,107,112,.08);color:var(--red);font-size:22px}.lobby-overlay{display:grid;position:fixed;inset:0;z-index:40;place-items:center;padding:18px;background:rgba(3,5,8,.82);backdrop-filter:blur(16px)}.lobby-panel{width:min(520px,100%)}.ready-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:22px 0}.ready-grid article{display:grid;gap:8px;border:1px solid var(--line);border-radius:16px;padding:20px;background:var(--surface2)}.ready-grid span{color:var(--muted);font-size:11px}.ready-grid strong{font-size:22px;color:var(--lime)}
@media(max-width:780px){.social-layout{grid-template-columns:1fr}.reset-box form,.inline-form{align-items:stretch;flex-direction:column}}

/* Presence and ranked matchmaking 1.0.9 */
.online-dot{display:inline-block;width:8px;height:8px;margin-right:6px;border-radius:50%;background:var(--muted)}.online-dot.on{background:var(--lime);box-shadow:0 0 10px var(--lime)}.searching-indicator{display:flex;align-items:center;gap:10px;margin-top:20px;border:1px solid rgba(200,255,85,.2);border-radius:14px;padding:14px;background:rgba(200,255,85,.06);color:var(--lime)}.searching-indicator i{width:15px;height:15px;border:2px solid rgba(200,255,85,.25);border-top-color:var(--lime);border-radius:50%;animation:searchSpin .8s linear infinite}.searching-indicator span{font-weight:700}.searching-indicator small{margin-left:auto;color:var(--muted)}@keyframes searchSpin{to{transform:rotate(360deg)}}

/* C Coin shop and card loadout 1.0.10 */
.shop-head{display:flex;align-items:center;justify-content:space-between;gap:20px;margin:12px 0;padding:24px 28px}.shop-head>div{display:grid;gap:5px}.shop-head span{color:var(--muted);font-size:10px;letter-spacing:.16em}.shop-head strong{font-size:30px}.shop-head b{color:var(--lime);font-size:42px}.shop-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.shop-card{display:grid;gap:18px;padding:24px;overflow:hidden}.shop-card.owned{border-color:rgba(200,255,85,.3)}.shop-symbol{display:grid;min-height:170px;place-items:center;border:1px solid var(--line);border-radius:18px;background:radial-gradient(circle,rgba(200,255,85,.13),transparent 62%),var(--surface2);font-size:82px}.shop-card h2{margin:5px 0}.shop-card p{margin:0;color:var(--muted);line-height:1.6}.shop-price{display:flex;align-items:center;justify-content:space-between;gap:12px}.shop-price strong{font-size:24px}.items-panel{padding:clamp(24px,4vw,42px)}.items-toolbar{display:flex;align-items:center;justify-content:space-between;gap:18px}.owned-list{display:grid;gap:9px;margin:24px 0}.owned-item{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:16px;border:1px solid var(--line);border-radius:16px;padding:13px;background:var(--surface2)}.owned-item.equipped{border-color:rgba(200,255,85,.38);background:color-mix(in srgb,var(--lime),var(--surface2) 95%)}.owned-symbol{display:grid;width:58px;height:58px;place-items:center;border-radius:14px;background:var(--surface);font-size:34px}.owned-item>div:nth-child(2){display:grid;gap:4px}.owned-item small{color:var(--muted)}.item-actions{display:flex;align-items:center;gap:6px}.mini-button{display:grid;width:38px;height:38px;place-items:center;border:1px solid var(--line);border-radius:10px;background:var(--surface);color:var(--ink)}.mini-button:disabled{opacity:.28}.animal-face{filter:drop-shadow(0 8px 13px rgba(0,0,0,.28))}
@media(max-width:880px){.shop-grid{grid-template-columns:1fr 1fr}}
@media(max-width:680px){.shop-head,.items-toolbar{align-items:stretch;flex-direction:column}.shop-grid{grid-template-columns:1fr}.owned-item{grid-template-columns:auto 1fr}.item-actions{grid-column:1/-1;justify-content:flex-end}.shop-symbol{min-height:140px}}

/* 1.0.11 */
.mobile-menu-button{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:12px;background:var(--surface2);font-size:21px}.settings-dock{position:fixed;right:18px;bottom:18px;z-index:20;display:flex;gap:6px;padding:7px;border:1px solid var(--line);border-radius:14px;background:var(--surface);box-shadow:var(--shadow)}.settings-dock button{border-radius:9px;padding:8px 10px;background:var(--surface2);font-size:11px}.tutorial-overlay,.shop-preview-overlay{display:grid;position:fixed;inset:0;z-index:60;place-items:center;padding:20px;background:rgba(4,6,9,.86);backdrop-filter:blur(12px)}.tutorial-panel{width:min(560px,100%);border:1px solid var(--line);border-radius:24px;padding:30px;background:var(--surface);box-shadow:var(--shadow)}.tutorial-progress{height:5px;margin:18px 0;border-radius:5px;background:var(--surface2);overflow:hidden}.tutorial-progress i{display:block;width:100%;height:100%;background:var(--lime);transition:width 1s linear}.tutorial-board,.preview-card-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:9px}.tutorial-card,.preview-card{display:grid;min-height:90px;place-items:center;border:1px solid var(--line);border-radius:14px;background:var(--surface2);font-size:30px}.tutorial-card.matched{outline:2px solid var(--lime);opacity:.45}.stats-layout{display:grid;grid-template-columns:1fr 1fr;gap:12px}.stats-panel{padding:26px}.summary-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:20px}.summary-grid article{padding:16px;border:1px solid var(--line);border-radius:13px;background:var(--surface2)}.summary-grid span{display:block;color:var(--muted);font-size:10px}.summary-grid strong{font-size:23px}.bar-chart{display:flex;height:190px;align-items:end;gap:8px;margin-top:20px}.chart-bar{display:grid;flex:1;align-content:end;justify-items:center;gap:6px;height:100%}.chart-bar i{width:100%;min-height:4px;border-radius:7px 7px 2px 2px;background:linear-gradient(var(--lime),var(--cyan))}.chart-bar span{font-size:9px;color:var(--muted)}.match-history{display:grid;gap:8px;margin-top:18px}.match-history article{display:grid;grid-template-columns:1fr auto;gap:5px;padding:13px;border:1px solid var(--line);border-radius:12px}.match-history .win{color:var(--lime)}.match-history .lose{color:var(--red)}.match-history .draw{color:var(--cyan)}.pagination{display:flex;align-items:center;justify-content:center;gap:12px;margin-top:18px}.my-rank-callout{margin-bottom:12px;padding:12px;border-radius:11px;background:var(--surface2);color:var(--lime)}.account-tools{display:none;margin:12px 0;padding:26px}.account-tools.visible{display:block}.game-card:focus-visible,.demo-card:focus-visible,.tutorial-card:focus-visible{outline:3px solid var(--cyan);outline-offset:3px}.result-panel.success-state{border-color:var(--lime)}.result-panel.failure-state{border-color:var(--red)}.score-rule{color:var(--lime);font-weight:800}
@media(max-width:680px){.mobile-menu-button{display:grid;place-items:center}.topnav{display:none;position:absolute;top:68px;left:10px;right:10px;z-index:30;width:auto!important;max-height:70vh;overflow:auto;border:1px solid var(--line);border-radius:14px;padding:9px;background:var(--surface)}.topnav.open{display:grid}.topnav a{padding:13px}.settings-dock{right:10px;bottom:10px}.stats-layout{grid-template-columns:1fr}.summary-grid{grid-template-columns:1fr 1fr}.tutorial-board,.preview-card-grid{grid-template-columns:repeat(2,1fr)}}
.signup-form [data-auth-action="register"],#accountView #nicknameInput,#accountView label[for="nicknameInput"]{display:none}.card:focus-visible{outline:3px solid var(--cyan);outline-offset:3px}.stage-stars{display:block;color:#ffd65a;font-size:8px;font-style:normal;letter-spacing:-1px}