.actions{display:flex;align-items:center;justify-content:center;gap:12px;flex-wrap:wrap}.echo-launch{display:flex;align-items:center;gap:11px;padding:16px 19px;border:1px solid #59ddec48;border-radius:5px;background:linear-gradient(110deg,#2c899015,#7445b32b);font-size:12px;color:#e5e0fa;transition:box-shadow .2s,transform .2s}.echo-launch:hover{box-shadow:0 0 25px #64e4ef18;transform:translateY(-2px)}.echo-launch-icon{font:19px var(--mono);color:var(--cyan);line-height:1}.echo-tag{font:8px var(--mono);letter-spacing:.08em;color:#9382ab;border-left:1px solid #ad9ace33;padding-left:10px}
#echo-game{width:min(680px,calc(100vw - 24px));max-height:none;background:transparent;overflow:visible;margin:0 auto}#echo-game{display:flex;flex-direction:column;border:0;box-shadow:none;border-radius:0}.echo-top{padding:10px 22px;display:flex;align-items:center;justify-content:space-between;gap:20px}.echo-title{display:flex;align-items:center;gap:10px;font:13px var(--mono);letter-spacing:.18em}.echo-title img{width:27px;height:27px}.echo-title small{font-size:8px;letter-spacing:.1em;color:var(--muted)}.echo-top-actions{display:flex;gap:19px;align-items:center}.echo-top-actions button{font:10px var(--mono);color:#bda9d0;padding:5px}.echo-top-actions button:hover{color:white}.echo-top-actions #echo-close{font-size:24px;line-height:1}.echo-hud{display:grid;grid-template-columns:1fr 1fr 1fr;gap:16px;padding:19px 25px 13px}.echo-hud>div:nth-child(2){text-align:center}.echo-hud>div:nth-child(3){text-align:right}.echo-hud-label{font:8px var(--mono);letter-spacing:.14em;color:#a996bc;display:block;margin-bottom:7px}.echo-hud strong{font:22px var(--mono);color:#f6ebff;letter-spacing:.03em;font-variant-numeric:tabular-nums}.echo-hud #echo-best{color:#b99dcc}.echo-hud #echo-lives{color:var(--pink);font-size:17px;letter-spacing:5px}.echo-board{height:clamp(250px,45svh,410px);position:relative;flex-shrink:0;overflow:hidden;background:transparent}#echo-canvas{width:100%;height:100%;display:block;touch-action:none;outline:none}#echo-canvas:focus-visible{box-shadow:inset 0 0 0 1px #bb80ff65}.echo-overlay{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:center;align-items:center;padding:20px;text-align:center;background:radial-gradient(ellipse,#0a0613f7 20%,#0a0613e8 48%,#0a061344 90%)}.echo-overlay[hidden]{display:none}.echo-kicker{font:8px var(--mono);letter-spacing:.23em;color:var(--cyan);margin:0 0 13px}.echo-overlay h2{font-size:45px;letter-spacing:-1px;font-weight:500;margin:0 0 13px;color:#f3e8ff}.echo-overlay p.echo-copy{font-size:12px;line-height:1.8;color:#b9a9cb;max-width:320px;margin:0 0 18px;white-space:pre-line}.echo-start{padding:13px 21px;border:1px solid #b77aef70;border-radius:4px;background:linear-gradient(100deg,#714aab55,#c551b72a);font:11px var(--mono);box-shadow:0 0 30px #a75fff16}.echo-start:hover{background:#7950aa65}.echo-overlay .echo-result{font:10px/1.8 var(--mono);color:var(--cyan);margin:0 0 18px;white-space:pre-line}.echo-controls{padding:14px 22px 18px}.echo-run-info{display:flex;justify-content:space-between;gap:16px;font:9px var(--mono);color:#a79ab8;margin-bottom:14px}.echo-combo{color:var(--cyan)}.echo-buttons{display:flex;gap:10px;align-items:center;justify-content:center}.echo-turn{display:grid;place-items:center;width:56px;height:39px;flex-shrink:0;border:1px solid #a281c43d;border-radius:4px;color:#c7a3ef;font-size:21px;touch-action:none;user-select:none;-webkit-user-select:none}.echo-turn:active,.echo-turn.pressed{background:#9b67e42b;border-color:#c183fa;box-shadow:0 0 15px #a261ed22}.echo-control-hint{font:8px/1.8 var(--mono);text-align:center;color:#afa0be;padding:0 10px;max-width:280px}.echo-message{position:absolute;left:0;right:0;top:calc(50% + 32px);text-align:center;font:9px var(--mono);letter-spacing:.05em;color:var(--cyan);pointer-events:none;opacity:0;transition:opacity .12s}.echo-message.visible{opacity:1}.echo-record-note{font:7px var(--mono);color:#8d7e9d;text-align:center;margin:13px 0 0;line-height:1.5}.echo-sr{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}
@media(max-width:700px){.echo-launch{font-size:11px;padding:15px}.actions{gap:10px}.echo-top{padding:12px 16px}.echo-title{font-size:11px}.echo-title small{display:none}.echo-hud{padding:14px 18px 8px;gap:8px}.echo-hud strong{font-size:18px}.echo-hud #echo-lives{font-size:13px;letter-spacing:3px}.echo-hud-label{font-size:7px}.echo-board{height:clamp(240px,42svh,380px)}.echo-overlay h2{font-size:37px}.echo-overlay p.echo-copy{font-size:11px;max-width:265px}.echo-kicker{font-size:7px}.echo-controls{padding:12px 16px}.echo-control-hint{font-size:7px;padding:0 3px}.echo-turn{width:45px;height:40px}.echo-run-info{font-size:8px}.echo-top-actions{gap:13px}}
@media(max-height:620px){.echo-board{height:230px}.echo-top{padding:9px 16px}.echo-hud{padding:10px 18px 6px}.echo-overlay h2{font-size:30px}.echo-overlay p.echo-copy{font-size:10px;margin-bottom:10px}.echo-kicker{margin-bottom:7px}.echo-controls{padding:10px 16px}.echo-record-note{margin-top:8px}}

/* Inline arena: the page itself is the playfield. */
.echo-home{padding:20px 0 10px;flex:1;gap:0}.echo-title h1{font:inherit;letter-spacing:inherit;margin:0;background:none;color:inherit}.echo-title small{color:var(--cyan)}
.echo-mode-bar{display:flex;align-items:center;justify-content:center;gap:12px;flex-wrap:wrap;margin:10px 0 16px}.echo-mode-toggle{font:10px var(--mono);padding:11px 16px;border:1px solid #a97cdd70;border-radius:4px;background:linear-gradient(110deg,#41647d20,#a15ac326);color:#ecdcff}.echo-mode-toggle:hover{background:#8250b52b}.echo-mode-toggle:disabled{opacity:.55;cursor:default}.echo-mode-hint{font:9px var(--mono);color:#ae9bc0}.echo-top-actions button:disabled{opacity:.35;cursor:default}.echo-turn:disabled{opacity:.35;cursor:default}
.echo-countdown{display:flex;align-items:center;justify-content:center;gap:10px;font:11px var(--mono);color:#bda4d7;min-height:48px}.echo-countdown strong{font-size:29px;font-weight:400;color:var(--cyan);min-width:22px;font-variant-numeric:tabular-nums}.echo-countdown[hidden],.echo-start[hidden]{display:none}
.signal-tools{display:flex;align-items:center;justify-content:center;gap:24px;flex-wrap:wrap;margin-top:15px}.signal-tools .symmetry-button{margin:0}.signal-tools .terminal-launch{padding:11px 14px;font-size:10px;background:none;border-color:#a27ac62f}.symmetry-detail{margin:20px auto 0}.symmetry-detail .balance-diagram{width:120px}
.brand .header-wordmark{width:125px;height:auto;filter:drop-shadow(0 0 8px #a85aff30)}.brand .domain{font-size:13px;margin-left:-5px}.echo-record-note{margin-top:10px}.echo-run-info{margin-bottom:8px}.echo-hud{padding-top:10px}
@media(max-width:700px){.echo-home{padding-top:16px}.brand .header-wordmark{width:105px;height:auto}.brand .domain{display:none}.echo-mode-bar{gap:8px;margin:6px 0 12px}.echo-mode-toggle{font-size:9px}.echo-mode-hint{font-size:8px}.echo-title small{display:inline;font-size:7px;letter-spacing:.05em}.echo-top{padding:8px 6px}.echo-hud{padding:10px 8px 5px}.echo-controls{padding:9px 6px}.signal-tools{gap:10px;margin-top:10px}.signal-tools .terminal-launch{font-size:9px}.echo-control-hint{font-size:7px}.echo-buttons{gap:8px}}

.echo-hud>div:first-child{text-align:left}