:root{--white:#fff;--sky:#eef8fd;--blue:#41b6e6;--blue-deep:#1a8cc0;--river-top:#5bc2ea;--river-bottom:#2a9bd0;--red:#e4002b;--ink:#0b2a3a;--muted:#6b8494;--lane-line:#ffffff80}*{box-sizing:border-box}html,body{height:100%;margin:0}body{color:var(--ink);background:var(--sky);font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif}main{flex-direction:column;height:100dvh;display:flex;overflow:hidden}button{font:inherit;cursor:pointer;background:var(--blue-deep);color:#fff;border:none;border-radius:10px;padding:.75rem 1.1rem;font-weight:700}button:disabled{opacity:.45;cursor:default}.loading{height:100dvh;color:var(--blue-deep);place-items:center;font-size:1.25rem;display:grid}.reconnecting{z-index:50;text-align:center;background:var(--red);color:#fff;padding:.4rem;font-size:.9rem;font-weight:600;position:fixed;inset:0 0 auto}.lobby{align-items:flex-start;gap:2.5rem;width:100%;max-width:1000px;margin:0 auto;padding:2rem 1.25rem;display:flex}.lobby-main{flex:auto;min-width:0;max-width:560px}.lobby-qr{flex-direction:column;flex:0 0 clamp(220px,28vw,380px);align-items:center;gap:.6rem;display:flex}.qr-caption{color:var(--blue-deep);margin:0;font-size:1.15rem;font-weight:800}.lobby h1{margin:0 0 .25rem;font-size:1.6rem}.lobby .tagline{color:var(--muted);margin:0 0 1.5rem}.lobby kbd{background:var(--blue);color:#fff;border-radius:5px;padding:0 .4rem;font-family:inherit}.roster h2{text-transform:uppercase;letter-spacing:.05em;color:var(--blue-deep);font-size:.85rem}.roster-kayaks{flex-wrap:wrap;align-items:flex-start;gap:.5rem 1rem;margin:.6rem 0 1.5rem;display:flex}.lobby-entry{flex-direction:column;align-items:center;width:96px;display:flex}.roster .empty{color:var(--muted);font-style:italic}.join-form{gap:.5rem;display:flex}.join-form input{border:2px solid var(--blue);border-radius:10px;flex:1;padding:.75rem;font-size:1rem}.ready{margin-top:.5rem}.lobby-actions{align-items:center;gap:.6rem;margin-top:1rem;display:flex}.leave-btn{background:var(--red)}.race-screen{flex-direction:column;flex:1;min-height:0;display:flex}.river-wrap{flex:1;min-height:0;position:relative}.river{background:linear-gradient(to top, var(--river-bottom), var(--river-top));justify-content:center;display:flex;position:absolute;inset:0;overflow:hidden}.river:before{content:"";pointer-events:none;background-image:repeating-linear-gradient(#fff0 0,#ffffff12 13px,#fff0 26px);animation:1.6s linear infinite river-flow;position:absolute;inset:-40px 0 0}@keyframes river-flow{to{transform:translateY(26px)}}.lane{border-left:2px dashed var(--lane-line);flex:156px;min-width:0;max-width:156px;position:relative}.lane:last-child{border-right:2px dashed var(--lane-line)}.lane.mine{background:#ffffff24}.finish-line{z-index:5;background-image:conic-gradient(#1b1b1b 25%, #fff 0 50%, #1b1b1b 0 75%, #fff 0);background-size:20px 20px;justify-content:center;align-items:center;height:2.5rem;display:flex;position:absolute;inset:1.4rem 0 auto;box-shadow:0 2px 6px #0003}.finish-line span{background:var(--red);color:#fff;letter-spacing:.08em;border-radius:6px;padding:.25rem .85rem;font-size:1rem;font-weight:800}.kayak-pos{will-change:bottom;justify-content:center;transition:bottom 90ms linear;display:flex;position:absolute;left:0;right:0}@media (prefers-reduced-motion:reduce){.river:before{animation:none}.kayak-pos{transition:none}}.overlay{z-index:10;pointer-events:none;text-align:center;place-items:center;display:grid;position:absolute;inset:0}.overlay.countdown{color:#fff;text-shadow:0 2px 14px #00000059;font-size:clamp(4rem,18vw,10rem);font-weight:900}.overlay.winner{color:#fff;background:#0b2a3a8c;font-size:clamp(1.5rem,6vw,3.5rem);font-weight:900}.dock{flex-shrink:0;width:100%;max-width:680px;margin:0 auto}.phone-status{display:none}.new-race{background:var(--red);margin:.75rem auto;display:block}.pads{gap:.75rem;padding:.75rem;display:flex}.pad{background:var(--blue-deep);color:#fff;touch-action:manipulation;-webkit-user-select:none;user-select:none;border-radius:14px;flex-direction:column;flex:1;justify-content:center;align-items:center;gap:.2rem;padding:1.1rem;font-size:2rem;display:flex}.pad small{letter-spacing:.1em;font-size:.8rem}.pad.flash{background:var(--red)}.pad:disabled{opacity:.4}@media (width<=640px){.lobby-qr,.race-screen.playing .river-wrap{display:none}.race-screen.playing{justify-content:center}.race-screen.playing .phone-status{text-align:center;flex-direction:column;align-items:center;gap:.25rem;padding:1rem;display:flex}.race-screen.playing .phone-status .big{color:var(--blue-deep);font-size:2.5rem;font-weight:900}.race-screen.playing .phone-status .hint{color:var(--muted)}.pad{min-height:38vh;font-size:2.5rem}}