@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&display=swap');
:root{color-scheme:dark;--ink:#e9f1ff;--muted:#8694b2;--cyan:#65f5dc;--line:#273044}
*{box-sizing:border-box}body{margin:0;background:#070b18;color:var(--ink);font-family:'Space Grotesk',system-ui,sans-serif;background-image:radial-gradient(ellipse at 50% 25%,#18213a 0,transparent 65%)}main{max-width:1100px;padding:28px 36px;margin:auto}header{display:flex;align-items:center;gap:28px;margin-bottom:27px}.brand{color:var(--ink);text-decoration:none;font-size:17px;font-weight:700;letter-spacing:2px}.brand-icon{color:var(--cyan);font-size:26px;margin-right:9px}.tag{font-size:10px;letter-spacing:2px;color:var(--muted);flex:1}button{font:inherit;cursor:pointer;background:transparent;color:var(--ink);border:1px solid var(--line);border-radius:5px;padding:9px 13px}button:hover{border-color:var(--cyan);color:var(--cyan)}button:focus-visible,a:focus-visible{outline:2px solid var(--cyan);outline-offset:4px}button:disabled{opacity:.35;cursor:default}#sound{font-size:11px;min-width:88px}.game-shell{border:1px solid #303b54;border-radius:12px;overflow:hidden;box-shadow:0 24px 100px #0008;background:#0a1020}.hud{display:flex;align-items:center;gap:42px;padding:19px 28px;border-bottom:1px solid var(--line)}.hud div{display:flex;flex-direction:column;gap:6px}.hud span{font-size:9px;letter-spacing:2px;color:var(--muted)}.hud strong{font-size:22px;letter-spacing:2px;font-weight:500}.hud .wave{margin-left:auto}#health{color:var(--cyan);font-size:19px}#pause{font-size:18px;padding:7px 12px}.arena{position:relative;aspect-ratio:900/650;max-height:650px;overflow:hidden}canvas{width:100%;height:100%;display:block;outline:none}.overlay{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;flex-direction:column;background:linear-gradient(0deg,#070b1866,#070b1810);text-align:center}.overlay[hidden]{display:none}.eyebrow{font-size:10px;letter-spacing:4px;color:var(--cyan);margin:0 0 20px}h1{font-size:clamp(42px,7.5vw,88px);letter-spacing:5px;line-height:.94;margin:0;font-weight:700}h1 span{color:var(--cyan)}#description{color:#a7b5d0;font-size:14px;line-height:1.8;margin:23px 0}.primary{background:var(--cyan);color:#082422;border:0;padding:16px 24px;font-size:12px;font-weight:700;letter-spacing:2px;min-width:240px;box-shadow:0 0 32px #65f5dc22}.primary:hover{background:#a1ffee;color:#082422}.primary span{margin-left:25px;font-size:19px}.hint{font-size:9px;letter-spacing:2px;color:var(--muted);margin-top:17px}.announcement{pointer-events:none;position:absolute;top:42%;width:100%;text-align:center;color:var(--cyan);font-size:25px;font-weight:700;letter-spacing:6px;text-shadow:0 0 20px #65f5dc88}footer{border-top:1px solid var(--line);display:flex;align-items:center;gap:24px;padding:17px 26px;font-size:9px;letter-spacing:1.5px;color:var(--muted)}footer div{display:flex;align-items:center;gap:4px}footer div span{margin-left:6px}kbd{font-family:inherit;border:1px solid #34405a;border-bottom:2px solid #34405a;border-radius:3px;padding:4px 6px;font-size:10px;color:#c9d4e9}.status{margin-left:auto;white-space:nowrap;font-size:8px}.status i{display:inline-block;background:var(--cyan);width:5px;height:5px;border-radius:50%;margin-right:7px}.under{display:flex;justify-content:space-between;align-items:center;color:var(--muted);font-size:8px;letter-spacing:1.5px;margin-top:18px}.under p{font-size:11px;letter-spacing:0;margin:0;color:#65728e}@media(max-width:650px){main{padding:18px 12px}.tag{display:none}header{justify-content:space-between;gap:10px}.brand{font-size:13px}.hud{padding:14px 12px;gap:16px}.hud strong{font-size:16px}.hud span{font-size:8px}.arena{min-height:390px;aspect-ratio:900/650}.hud .wave{margin-left:auto}footer{padding:12px 10px;gap:12px;flex-wrap:wrap}.status{display:none}.under>span{display:none}.under{justify-content:center}#description{font-size:12px}h1{font-size:52px}.eyebrow{font-size:8px;letter-spacing:2px}}
@media(min-width:651px){.arena{height:clamp(370px,calc(100dvh - 280px),650px);aspect-ratio:auto}} .overlay.is-report{background:#080e1de6;backdrop-filter:blur(3px)}
.fuel-strip{display:flex;gap:12px;align-items:center;border-top:1px solid var(--line);padding:12px 26px;font-size:9px;letter-spacing:1.5px;color:var(--muted)}#fuel{width:180px;height:6px;background:#273044;border-radius:4px;overflow:hidden}#fuel-fill{height:100%;background:var(--cyan)}#fuel.low #fuel-fill{background:#ff688c}.fuel-tip{margin-left:auto;font-size:8px}@media(max-width:650px){.fuel-tip{display:none}.fuel-strip{padding:12px}#health{font-size:15px}}
.overlay{z-index:2} .announcement{z-index:1}
/* HUD placement follows the reference: scores above, fuel centered below,
   spare launchers and armada at lower right. */
.hud{display:grid;grid-template-columns:1fr auto 1fr;gap:20px;padding:17px 36px}
.hud .best{align-items:flex-end}.hud strong{color:#d4ee89}.hud #pause{justify-self:center;opacity:.6}
.bottom-hud{position:absolute;left:20px;right:20px;bottom:16px;display:grid;grid-template-columns:1fr minmax(130px,260px) 1fr;align-items:end;gap:14px;z-index:3;pointer-events:none;background:linear-gradient(0deg,#080e1df2,transparent);padding-top:15px}
.fuel-group{grid-column:2;position:relative;display:flex;flex-direction:column;gap:8px;font-size:8px;letter-spacing:2px;color:var(--muted)}
.fuel-group>span:first-child{text-align:center}#fuel-value{position:absolute;right:0;top:0;font-size:8px;letter-spacing:0}
#fuel{width:100%;height:10px;background:none;border-radius:0;display:flex;gap:7px;align-items:center;overflow:visible}.fuel-track{height:7px;flex:1;background:#273044;border-radius:2px;overflow:hidden}#fuel-fill{height:100%;background:var(--cyan)}.fuel-end{font-size:9px;font-weight:700;color:var(--cyan)}#fuel.low .fuel-end{color:#ff688c}
.reserve-group{grid-column:3;justify-self:end;display:flex;gap:22px;align-items:end}.reserve-group>div{display:flex;flex-direction:column;gap:7px}.reserve-group span:not(.reserve-ship){font-size:8px;letter-spacing:1.5px;color:var(--muted)}.lives-readout{display:flex;gap:10px;align-items:center;height:19px}#life-icons{display:flex;gap:6px}.reserve-ship{display:block;width:22px;height:18px;background:var(--cyan);clip-path:polygon(50% 0,65% 44%,100% 72%,100% 100%,63% 80%,50% 94%,37% 80%,0 100%,0 72%,35% 44%)}#health,.reserve-group strong{font-size:18px;font-weight:500;color:var(--cyan);letter-spacing:1px;line-height:19px}
@media(min-width:651px){.arena{height:clamp(390px,calc(100dvh - 245px),650px)}}
@media(max-width:650px){.hud{padding:14px 18px;gap:12px}.bottom-hud{left:12px;right:12px;bottom:14px;grid-template-columns:1fr minmax(110px,150px) 1fr;gap:8px}.reserve-group{gap:10px}.reserve-ship{width:15px;height:13px}#life-icons{gap:3px}.lives-readout{gap:5px}.reserve-group span:not(.reserve-ship){font-size:6px;letter-spacing:.5px}#health,.reserve-group strong{font-size:14px}.fuel-group{font-size:7px}.under p{font-size:10px}}
/* Original screen proportions, measured from the supplied reference. */
.hud{position:absolute;inset:22px 0 auto;display:block;height:32px;padding:0;border:0;background:none;z-index:3;pointer-events:none}.hud>div{position:absolute;left:23%;top:0}.hud .best{left:56%;align-items:flex-start}.hud span{display:none}.hud strong{font-family:monospace;font-size:23px;font-weight:700;letter-spacing:5px;color:#d4ee89}
.bottom-hud{left:0;right:0;bottom:16px;display:block;height:28px;padding:0;background:none}.fuel-group{position:absolute;left:23%;bottom:0;width:20%;display:block}.fuel-group>span:first-child,#fuel-value,#fuel .fuel-end:last-child{display:none}#fuel{height:12px;gap:5px}.fuel-track{height:11px;border-radius:0;background:#193221}#fuel-fill{background:#52f532}.fuel-end{color:#ff4242;font-family:monospace;font-size:17px}.reserve-group{position:absolute;left:62%;bottom:0;gap:32px;align-items:center}.reserve-group>div{gap:0}.reserve-group span:not(.reserve-ship),#health{display:none}.lives-readout{height:18px}#life-icons{gap:6px}.reserve-ship{width:24px;height:14px;clip-path:none;background:none;fill:#52f532}.reserve-group strong{color:#ff4242;font-family:monospace;font-size:19px;font-weight:700;letter-spacing:0}
@media(min-width:651px){.arena{height:clamp(470px,calc(100dvh - 165px),730px);max-height:730px}}
@media(max-width:650px){.hud{inset:16px 0 auto;padding:0}.hud strong{font-size:16px;letter-spacing:2px}.bottom-hud{left:0;right:0;bottom:12px}.fuel-group{left:23%;width:22%}.reserve-group{left:62%;gap:20px}.reserve-ship{width:18px;height:11px}#fuel{height:9px}.fuel-track{height:8px}}
.hud{top:5%} #health{display:block;position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}
.hud>div{left:25%}.hud .best{left:auto;right:25%;align-items:flex-end}
.invader-hud{position:absolute;bottom:18px;left:28px;right:28px;display:flex;gap:28px;align-items:center;font-size:9px;letter-spacing:2px;color:#8694b2;pointer-events:none}.invader-hud span:first-child{margin-right:auto}.invader-hud strong,.invader-hud b{color:#65f5dc;font-size:18px;margin-left:8px}#health{display:inline;position:static;width:auto;height:auto;clip-path:none;overflow:visible}.hud span{display:block;font-size:8px;margin-bottom:4px}.hud>div{left:7%}.hud .best{right:7%}.overlay h1{font-size:clamp(38px,7vw,76px)}
@media(min-width:651px){.arena{height:clamp(390px,calc(100dvh - 210px),650px);max-height:650px}}
.overlay h1{font-size:clamp(42px,8vw,88px)}#mode{font-size:13px}.hud strong{color:#ffcf70}
.overlay{background:#070b18c9}.overlay h1{font-size:clamp(38px,7vw,80px)}#power{font-size:13px}.hud strong{color:#ffcf70}
.announcement{top:62%;font-size:20px}