:root{color-scheme:dark;--bg:#0b0c0f;--panel:#15161b;--line:#292a30;--muted:#85838a;--text:#f5f1ef;--red:#ff5d51;--peach:#ffab98;--mono:"Courier New",monospace;--sans:Inter,Arial,sans-serif}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:var(--sans);overflow-x:hidden}
button,input{font:inherit}
button{cursor:pointer}
button:focus-visible,input:focus-visible{outline:2px solid #ffd2bd;outline-offset:3px}
.shell{width:min(1460px,calc(100% - 104px));margin-inline:auto}
.ambient{position:fixed;pointer-events:none;z-index:-1;filter:blur(80px);opacity:.16}
.ambient-one{width:600px;height:500px;background:#aa3c38;top:15%;left:-390px}
.ambient-two{width:400px;height:400px;background:#a73b40;top:25%;right:-300px}
.topbar{height:95px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:12px}
.brand-logo{width:50px;height:50px;object-fit:cover;border-radius:12px}
.brand-name,.brand-sub{display:block}.brand-name{font-weight:900;letter-spacing:.17em;font-size:13px}.brand-sub{font:9px var(--mono);letter-spacing:.14em;color:#8f8e94;margin-top:6px}
.topbar-right{display:flex;align-items:center;gap:13px;font:10px var(--mono);color:#a19ca0;letter-spacing:.11em}.topbar-dot,.leaderboard-sub i{width:7px;height:7px;border-radius:50%;background:#ff7667;box-shadow:0 0 12px #ff7667;display:inline-block}.topbar-slash{color:#58545a}
.intro{display:flex;align-items:end;justify-content:space-between;padding:58px 0 36px}
.eyebrow,.section-kicker{font:10px var(--mono);letter-spacing:.15em;color:#b9afb0}.eyebrow{display:flex;align-items:center;gap:10px}.eyebrow span{height:2px;width:24px;background:var(--red)}
h1,h2,h3,p{margin:0}h1{font-size:clamp(35px,4.1vw,61px);letter-spacing:-.065em;line-height:1.07;margin-top:18px;font-weight:800}h1 em{font-style:normal;color:#ff8678}.period,.sidebar-heading h3 span,.how-card h3 span{color:var(--red)}
.intro p{font-size:14px;line-height:1.6;color:#a7a1a3;margin-top:12px}.intro-index{text-align:right;display:flex;flex-direction:column;gap:6px}.intro-index span{font:9px var(--mono);letter-spacing:.13em;color:#77747a}.intro-index strong{font:11px var(--mono);letter-spacing:.1em;color:#c6bec0}.intro-index i{font-style:normal;color:var(--red)}
.game-layout{display:grid;grid-template-columns:minmax(0,1fr) 328px;gap:18px;align-items:start}
.game-column,.leaderboard-card,.how-card{background:#15161b;border:1px solid #2c2b31;border-radius:8px;overflow:hidden}
.game-titlebar{height:58px;display:flex;justify-content:space-between;align-items:center;padding:0 22px;border-bottom:1px solid #333037;background:#18181c}
.game-mark{display:flex;align-items:center;gap:10px;font:9px var(--mono);letter-spacing:.12em;color:#8d888c}.game-mark strong{font:800 12px var(--sans);letter-spacing:.12em;color:#f5eeeb}.mark-square{display:grid;place-items:center;background:#f57468;color:#1d1617;height:23px;width:23px;border-radius:4px;font-size:17px}.title-divider{height:16px;width:1px;background:#3d383b;margin:0 3px}
.icon-button{background:none;border:0;color:#bdb2b2;font:11px var(--mono);letter-spacing:.06em;padding:8px}.icon-button span{font-size:9px;margin-left:5px}
.game-stage{position:relative;background:#100e11;aspect-ratio:1000/680;min-height:460px;overflow:hidden;touch-action:pan-y}
canvas{display:block;width:100%;height:100%;object-fit:fill}
.hud{position:absolute;top:23px;left:28px;right:28px;display:flex;justify-content:space-between;pointer-events:none}.hud div{min-width:80px}.hud div:nth-child(2){text-align:center}.hud div:last-child{text-align:right}.hud span,.result-grid span{display:block;color:#b7a5a6;font:9px var(--mono);letter-spacing:.13em}.hud strong{display:block;font-size:23px;letter-spacing:.02em;margin-top:7px;font-weight:800}.hud strong .hud-small{display:inline;color:inherit;font:14px var(--mono)}.hud strong.life-value{font-size:12px;color:#fa7a6a;letter-spacing:3px;margin-top:12px}
.stage-bottom{position:absolute;bottom:21px;left:28px;right:28px;display:flex;justify-content:space-between;pointer-events:none;font:9px var(--mono);letter-spacing:.11em;color:#e8b9b3}.stage-bottom i{display:inline-block;width:5px;height:5px;background:#fb7668;border-radius:50%;margin:0 6px 2px 0}
.overlay{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:rgba(14,10,13,.52);backdrop-filter:blur(3px);padding:18px}.hidden{display:none!important}
.start-card{width:min(350px,100%);margin-top:7px;text-align:center}.overlay-kicker{font:9px var(--mono);letter-spacing:.17em;color:#f0c9c1;display:flex;align-items:center;justify-content:center;gap:8px}.overlay-kicker span{width:6px;height:6px;background:var(--red);border-radius:50%}
.start-card h2{font-size:clamp(51px,6.3vw,90px);line-height:.77;letter-spacing:-.075em;font-weight:900;margin:19px 0 18px;text-shadow:0 3px 18px #000}.start-card h2 em{font-style:normal;color:#ff8c7e}.start-card h2 span{color:#ff5d51}.start-card>p{font-size:12px;color:#d0b5b0;line-height:1.5;margin-bottom:20px}
form{text-align:left}label{display:block;font:9px var(--mono);letter-spacing:.14em;color:#e8c6c0;margin-bottom:8px}.name-field{height:48px;border:1px solid #755454;border-radius:4px;background:rgba(17,13,17,.79);display:flex;align-items:center;padding:0 14px}.name-field>span{color:#ff8a7c;margin-right:9px}.name-field input{width:100%;height:100%;background:transparent;border:0;color:white;font-size:13px;outline:none}.name-field input::placeholder{color:#8e7b7b}.field-error{font-size:11px;color:#ffc1b5;min-height:0;text-align:left;padding-top:0}.field-error:not(:empty){padding-top:5px}
.primary-button{border:0;border-radius:4px;background:#ff7769;color:#1c1112;font-weight:900;font-size:11px;letter-spacing:.12em;width:100%;height:49px;display:flex;align-items:center;justify-content:center;position:relative;margin-top:11px;transition:background .15s,transform .15s}.primary-button:hover{background:#ffa494;transform:translateY(-1px)}.primary-button span{position:absolute;right:17px;font-size:16px}
.start-footnote{font:8px var(--mono);letter-spacing:.05em;color:#bfa5a0;margin-top:15px}.start-footnote span:first-child{color:#fff}.foot-dot{padding:0 4px;color:#ff8d7e}
.end-card h2{font-size:clamp(50px,6vw,78px)}.end-card>p{margin-bottom:14px}.result-grid{display:grid;grid-template-columns:1fr 1fr;border:1px solid #765052;background:#20191b}.result-grid div{padding:11px}.result-grid div+div{border-left:1px solid #765052}.result-grid strong{display:block;font-size:24px;margin-top:5px}.submit-status{font:10px var(--mono);color:#d9c2bc;margin:9px 0;min-height:12px}.secondary-button{border:0;background:transparent;color:#f7c3ba;font:9px var(--mono);letter-spacing:.09em;margin-top:9px}
.mobile-controls{display:none;justify-content:center;align-items:center;gap:14px;padding:11px;background:#17171b}.mobile-controls button{width:64px;height:40px;border:1px solid #6b514e;border-radius:5px;background:#312324;color:#ffd5ca;font-size:22px;touch-action:manipulation}.mobile-controls span{font:9px var(--mono);color:#b19592}
.game-caption{height:74px;padding:0 23px;display:flex;align-items:center;justify-content:space-between;border-top:1px solid #302c31;background:#19191d}.caption-label{font:9px var(--mono);letter-spacing:.13em;color:#e87f70}.game-caption p{font-size:11px;color:#aaa0a2;margin-top:7px}.game-caption b{font-weight:600;color:#e9dfdc}.caption-count{font:9px var(--mono);color:#8b7e80}
.sidebar{display:flex;flex-direction:column;gap:18px}.leaderboard-card{padding:24px 23px 0}.sidebar-heading{display:flex;justify-content:space-between;align-items:start}.section-kicker{font-size:8px;color:#a69b9b;letter-spacing:.1em}.sidebar-heading h3,.how-card h3{font-size:24px;letter-spacing:-.05em;margin-top:11px}.trophy{display:grid;place-items:center;background:#3d2929;color:#ff927f;width:35px;height:35px;border-radius:6px;font-size:21px}
.leaderboard-sub{display:flex;justify-content:space-between;align-items:center;margin:22px 0 12px}.leaderboard-sub>span{font:9px var(--mono);letter-spacing:.08em;color:#aba1a2;display:flex;align-items:center;gap:7px}.leaderboard-sub i{width:6px;height:6px;background:#96928f;box-shadow:none}.leaderboard-sub i.online{background:#95d7ae;box-shadow:0 0 9px #95d7ae}.leaderboard-sub button{background:#262427;border:1px solid #3b3538;color:#ddd0cd;border-radius:4px;width:28px;height:28px;font-size:18px}
.board-head{padding:12px 0 10px;border-top:1px solid #363136;border-bottom:1px solid #363136;display:flex;justify-content:space-between;font:8px var(--mono);letter-spacing:.1em;color:#898084}.board-list{min-height:170px;max-height:350px;overflow:auto}.board-message{font-size:12px;line-height:1.65;color:#9a8e90;padding:30px 8px;text-align:center}.board-row{height:45px;display:grid;grid-template-columns:28px minmax(0,1fr) auto;align-items:center;gap:9px;border-bottom:1px solid #302c30;font-size:12px}.board-rank{font:10px var(--mono);color:#b8a4a3}.board-row:first-child .board-rank{color:#ff8e7e}.board-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:#eee6e3;font-weight:600}.board-score{font:11px var(--mono);color:#ffb3a6}.board-foot{padding:15px 0;display:flex;justify-content:space-between;color:#8a7e81;font:8px var(--mono);letter-spacing:.06em}
.how-card{padding:23px;background:linear-gradient(150deg,#272023,#17171b 75%)}.how-title{display:flex;justify-content:space-between;color:#ff9b8d}.how-card h3{font-size:23px;line-height:1.08;margin:9px 0 19px}.tip{display:flex;gap:11px;align-items:center;margin-top:14px}.tip-icon{width:33px;height:33px;display:grid;place-items:center;border-radius:6px;flex:none}.node-icon{color:#ffd0a5;background:#523730}.packet-icon{color:#f6d6bd;background:#4b3b37}.block-icon{color:#ff8a7a;background:#512b2a;font-size:21px}.tip strong,.tip small{display:block}.tip strong{font-size:11px}.tip small{color:#9f9293;font-size:10px;margin-top:4px}
.bottom-band{margin-top:22px;padding:23px 26px;border:1px solid #332b2d;background:linear-gradient(90deg,#241b1d,#17171a);display:flex;align-items:center;gap:16px;border-radius:7px}.bottom-icon{width:37px;height:37px;display:grid;place-items:center;border-radius:6px;background:#f47b6d;color:#251416;font-size:20px}.bottom-band strong{font-size:13px}.bottom-band p{font-size:11px;color:#a29596;margin-top:5px}.bottom-label{margin-left:auto;font:9px var(--mono);letter-spacing:.1em;color:#aa9795}.bottom-label span{color:#f89181;margin-left:12px}.footer{padding:26px 0 34px;display:flex;justify-content:space-between;gap:15px;font:9px var(--mono);letter-spacing:.09em;color:#716b6e}.footer strong{color:#debbb4}
@media(max-width:1000px){.shell{width:min(100% - 50px,1250px)}.game-layout{grid-template-columns:minmax(0,1fr) 290px}.leaderboard-card{padding-left:18px;padding-right:18px}.intro h1{font-size:44px}.game-stage{min-height:430px}}
@media(max-width:760px){.shell{width:calc(100% - 28px)}.topbar{height:75px}.brand-logo{width:43px;height:43px}.topbar-right{font-size:8px;gap:7px}.topbar-right .topbar-slash,.topbar-right span:last-child{display:none}.intro{padding:38px 0 25px;align-items:start}.intro h1{font-size:clamp(35px,8vw,50px)}.intro p{max-width:430px;font-size:13px}.intro-index{display:none}.game-layout{grid-template-columns:1fr}.game-stage{aspect-ratio:auto;height:550px;min-height:0}.mobile-controls{display:flex}.sidebar{display:grid;grid-template-columns:1fr 1fr;align-items:stretch}.board-list{min-height:130px}.bottom-label{display:none}.footer{font-size:8px}}
@media(max-width:470px){.topbar-right{font-size:7px}.topbar-right>span:nth-child(2){max-width:100px}.game-stage{height:510px}.game-mark span:last-child,.title-divider{display:none}.game-titlebar{padding:0 14px}.hud{left:15px;right:15px;top:17px}.hud strong{font-size:19px}.hud span{font-size:8px}.stage-bottom{left:15px;right:15px}.start-card h2{font-size:68px}.start-card{width:min(305px,100%)}.sidebar{grid-template-columns:1fr}.game-caption{padding:0 14px}.caption-count{display:none}.bottom-band{padding:18px}.footer{flex-direction:column;line-height:1.7}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important}}