/* ============================================================
   L1 Arena — interface
   Same token language as the terminal: navy, hairlines, mono numerals.
   ============================================================ */
:root{
  --bg:#06080B; --bg-2:#0A0D13; --bg-3:#0D1119; --bg-4:#111722;
  --panel:rgba(255,255,255,.028); --panel-2:rgba(255,255,255,.055);
  --line:rgba(255,255,255,.075); --line-2:rgba(255,255,255,.15);
  --ink:#EEF2F7; --ink-2:#98A3B2; --ink-3:#5C6675;
  --blue:#5B8DEF; --green:#2FD69B; --amber:#E4A94C; --red:#F2685E; --violet:#9B8CFF;
  --grid:rgba(255,255,255,.045);
  --sans:"Inter","Geist",-apple-system,BlinkMacSystemFont,"Segoe UI",system-ui,sans-serif;
  --mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --ease:cubic-bezier(.22,.61,.36,1);
  --rail:236px; --top:56px;
  --r:10px; --r-sm:6px;
}
[data-theme="light"]{
  --bg:#F6F7F9; --bg-2:#fff; --bg-3:#fff; --bg-4:#fff;
  --panel:rgba(9,13,20,.024); --panel-2:rgba(9,13,20,.05);
  --line:rgba(9,13,20,.10); --line-2:rgba(9,13,20,.18);
  --ink:#0A0E15; --ink-2:#4B5665; --ink-3:#7A8494;
  --blue:#2C63C8; --green:#0F9C6C; --amber:#A9761A; --red:#C33B33; --violet:#6B5BD6;
  --grid:rgba(9,13,20,.06);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);font-size:14px;line-height:1.55;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4,p{margin:0}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
img{display:block;max-width:100%}
::selection{background:var(--blue);color:#fff}
:focus-visible{outline:2px solid var(--blue);outline-offset:2px;border-radius:3px}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums}
.tag{font-family:var(--mono);font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-3)}
.muted{color:var(--ink-2)} .dim{color:var(--ink-3)}
.up{color:var(--green)} .down{color:var(--red)} .warn{color:var(--amber)}
.h1{font-size:clamp(24px,2.6vw,34px);line-height:1.08;letter-spacing:-.03em;font-weight:560}
.h2{font-size:19px;letter-spacing:-.02em;font-weight:540}
.h3{font-size:15px;letter-spacing:-.01em;font-weight:540}
.small{font-size:12.5px;color:var(--ink-2);line-height:1.5}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;height:36px;padding:0 14px;border-radius:var(--r-sm);
  border:1px solid var(--line-2);font-size:13px;font-weight:520;transition:.2s var(--ease);white-space:nowrap}
.btn:hover{background:var(--panel-2);border-color:var(--ink-3)}
.btn:disabled{opacity:.5;cursor:not-allowed}
.btn svg{width:14px;height:14px;flex:0 0 auto}
.btn-p{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.btn-p:hover{transform:translateY(-1px);box-shadow:0 8px 24px -12px rgba(0,0,0,.6);background:var(--ink)}
.btn-g{border-color:var(--line);color:var(--ink-2)}
.btn-g:hover{color:var(--ink)}
.btn-sm{height:30px;padding:0 10px;font-size:12px}
.btn-race{border-color:color-mix(in srgb,var(--blue) 55%,transparent);color:var(--blue)}
.btn-race:hover{background:color-mix(in srgb,var(--blue) 12%,transparent);border-color:var(--blue)}
.btn-danger{border-color:color-mix(in srgb,var(--red) 45%,transparent);color:var(--red)}
.btn-block{width:100%}

/* ---------- avatars ---------- */
.av{width:36px;height:36px;border-radius:8px;display:grid;place-items:center;flex:0 0 auto;
  font-family:var(--mono);font-size:12.5px;font-weight:500;letter-spacing:-.02em;
  background:color-mix(in srgb,var(--c,210) 100%,transparent);color:var(--ink);
  background:linear-gradient(145deg,hsl(var(--h,210) 45% 22%),hsl(var(--h,210) 40% 14%));
  border:1px solid var(--line-2);overflow:hidden}
.av img{width:100%;height:100%;object-fit:cover}
.av-lg{width:64px;height:64px;border-radius:14px;font-size:20px}
.av-xl{width:88px;height:88px;border-radius:18px;font-size:28px}
.av-sm{width:28px;height:28px;border-radius:6px;font-size:10px}
.dot-on{width:7px;height:7px;border-radius:50%;background:var(--green);box-shadow:0 0 0 3px color-mix(in srgb,var(--green) 18%,transparent);flex:0 0 auto}

/* ---------- auth ---------- */
.auth{min-height:100svh;display:grid;grid-template-columns:1.05fr .95fr}
.auth-brand{position:relative;padding:48px;display:flex;flex-direction:column;justify-content:space-between;border-right:1px solid var(--line);overflow:hidden}
.auth-brand canvas{position:absolute;inset:0;width:100%;height:100%;opacity:.5}
.auth-brand > *{position:relative;z-index:2}
.auth-quote{font-size:clamp(26px,3.4vw,44px);line-height:1.06;letter-spacing:-.035em;font-weight:520;max-width:14ch}
.auth-stats{display:flex;gap:28px;flex-wrap:wrap}
.auth-stats b{font-family:var(--mono);font-size:20px;display:block;letter-spacing:-.02em}
.auth-stats span{font-size:11.5px;color:var(--ink-3)}
.auth-panel{display:grid;place-items:center;padding:40px 24px}
.auth-card{width:min(400px,100%)}
.auth-tabs{display:flex;gap:2px;border:1px solid var(--line);border-radius:var(--r-sm);padding:3px;margin-bottom:22px}
.auth-tabs button{flex:1;padding:7px;font-size:12.5px;color:var(--ink-2);border-radius:4px;transition:.18s}
.auth-tabs button.on{background:var(--panel-2);color:var(--ink);box-shadow:inset 0 0 0 1px var(--line)}
.field{display:flex;flex-direction:column;gap:6px;margin-bottom:12px}
.field label{font-size:12px;color:var(--ink-2)}
.field input{height:40px;padding:0 12px;background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-sm);
  color:var(--ink);font-size:14px;font-family:var(--sans);transition:.18s}
.field input:focus{outline:none;border-color:var(--ink-3);background:var(--bg-3)}
.field .hint{font-size:11.5px;color:var(--ink-3)}
.err{font-size:12.5px;color:var(--red);min-height:18px;margin:4px 0 8px}
@media(max-width:860px){.auth{grid-template-columns:1fr}.auth-brand{display:none}}

/* ---------- shell ---------- */
.shell{min-height:100svh;padding-left:var(--rail)}
.rail{position:fixed;inset:0 auto 0 0;width:var(--rail);border-right:1px solid var(--line);background:var(--bg);
  display:flex;flex-direction:column;padding:14px 12px;z-index:40}
.rail-brand{display:flex;align-items:center;gap:9px;padding:6px 8px 16px;font-weight:560;font-size:14px}
.rail-brand span{font-family:var(--mono);font-size:9.5px;letter-spacing:.16em;color:var(--ink-3)}
.rail nav{display:flex;flex-direction:column;gap:1px}
.nav-i{display:flex;align-items:center;gap:10px;padding:8px 10px;border-radius:var(--r-sm);font-size:13px;color:var(--ink-2);transition:.15s;position:relative}
.nav-i:hover{background:var(--panel-2);color:var(--ink)}
.nav-i.on{background:var(--panel-2);color:var(--ink)}
.nav-i.on::before{content:"";position:absolute;left:0;top:9px;bottom:9px;width:2px;border-radius:2px;background:var(--green)}
.nav-i svg{width:15px;height:15px;flex:0 0 auto;opacity:.85}
.nav-i .badge{margin-left:auto}
.rail-foot{margin-top:auto;padding-top:12px;border-top:1px solid var(--line)}
.rail-user{display:flex;align-items:center;gap:9px;padding:6px;border-radius:var(--r-sm);width:100%;transition:.15s}
.rail-user:hover{background:var(--panel-2)}
.rail-user .nm{font-size:12.5px;line-height:1.25;text-align:left;overflow:hidden}
.rail-user .nm b{display:block;font-weight:520;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:120px}
.rail-user .nm span{font-size:10.5px;color:var(--ink-3)}
.top{position:sticky;top:0;z-index:30;height:var(--top);display:flex;align-items:center;gap:12px;padding:0 24px;
  border-bottom:1px solid var(--line);background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(14px)}
.top .crumb{font-size:13px;color:var(--ink-2)}
.top-right{margin-left:auto;display:flex;align-items:center;gap:8px}
.xp-pill{display:flex;align-items:center;gap:8px;height:28px;padding:0 10px;border:1px solid var(--line);border-radius:100px;font-size:11.5px}
.xp-pill b{font-family:var(--mono);font-weight:500}
.icon-btn{width:30px;height:30px;display:grid;place-items:center;border-radius:var(--r-sm);color:var(--ink-2);position:relative;transition:.15s}
.icon-btn:hover{background:var(--panel-2);color:var(--ink)}
.badge{min-width:16px;height:16px;padding:0 4px;border-radius:8px;background:var(--red);color:#fff;font-size:9.5px;
  font-family:var(--mono);display:grid;place-items:center;line-height:1}
.icon-btn .badge{position:absolute;top:-3px;right:-3px}
.main{padding:28px 24px 80px;max-width:1180px;margin:0 auto;width:100%}
.bottomnav{display:none}
@media(max-width:900px){
  .shell{padding-left:0}
  .rail{display:none}
  .main{padding:18px 14px 90px}
  .top{padding:0 14px}
  .bottomnav{display:grid;grid-template-columns:repeat(5,1fr);position:fixed;bottom:0;left:0;right:0;z-index:50;
    background:color-mix(in srgb,var(--bg) 94%,transparent);backdrop-filter:blur(16px);border-top:1px solid var(--line);
    padding:6px 4px calc(6px + env(safe-area-inset-bottom))}
  .bottomnav a{display:flex;flex-direction:column;align-items:center;gap:3px;padding:5px 2px;font-size:9.5px;color:var(--ink-3)}
  .bottomnav a.on{color:var(--ink)}
  .bottomnav svg{width:18px;height:18px}
}

/* ---------- primitives ---------- */
.card{border:1px solid var(--line);border-radius:var(--r);background:var(--panel);padding:16px}
.card-h{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:12px}
.card-h h3{font-size:13px;font-weight:540;letter-spacing:-.01em}
.grid{display:grid;gap:12px}
.g2{grid-template-columns:repeat(2,1fr)} .g3{grid-template-columns:repeat(3,1fr)} .g4{grid-template-columns:repeat(4,1fr)}
.split{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(0,1fr);gap:12px;align-items:start}
@media(max-width:1050px){.split{grid-template-columns:1fr}.g4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:620px){.g2,.g3,.g4{grid-template-columns:1fr}}
.ring-wrap{display:flex;align-items:center;gap:14px}
.ring{position:relative;flex:0 0 auto;display:grid;place-items:center}
.ring svg{transform:rotate(-90deg)}
.ring circle{fill:none;stroke-linecap:round}
.ring .tr{stroke:var(--line)}
.ring .fg{transition:stroke-dashoffset 1.1s var(--ease)}
.ring .val{position:absolute;font-family:var(--mono);font-size:15px;letter-spacing:-.03em}
.bar{height:5px;border-radius:3px;background:var(--line);overflow:hidden}
.bar i{display:block;height:100%;border-radius:3px;background:var(--green);width:0;transition:width .9s var(--ease)}
.bar.b i{background:var(--blue)} .bar.a i{background:var(--amber)}
.stat .k{font-family:var(--mono);font-size:9.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-3)}
.stat .v{font-family:var(--mono);font-size:26px;letter-spacing:-.04em;line-height:1.1;margin-top:4px}
.stat .s{font-size:11.5px;color:var(--ink-3);margin-top:2px}
.row{display:flex;align-items:center;gap:10px}
.row-b{display:flex;align-items:center;justify-content:space-between;gap:10px}
.list-row{display:flex;align-items:center;gap:10px;padding:9px 0;border-top:1px solid var(--line)}
.list-row:first-child{border-top:0}
.empty{padding:26px 10px;text-align:center;color:var(--ink-3);font-size:12.5px}
.chip{font-family:var(--mono);font-size:10.5px;padding:4px 9px;border:1px solid var(--line);border-radius:5px;color:var(--ink-2);transition:.15s}
.chip:hover{border-color:var(--line-2);color:var(--ink)}
.chip.on{border-color:var(--green);color:var(--green)}
.chips{display:flex;gap:6px;flex-wrap:wrap}
.pill{display:inline-flex;align-items:center;gap:5px;font-family:var(--mono);font-size:10.5px;padding:3px 8px;border-radius:100px;border:1px solid var(--line);color:var(--ink-2)}
.pill.fire{border-color:color-mix(in srgb,var(--amber) 45%,transparent);color:var(--amber)}
.pill.live{border-color:color-mix(in srgb,var(--red) 45%,transparent);color:var(--red)}
.skel{background:linear-gradient(90deg,var(--panel) 25%,var(--panel-2) 37%,var(--panel) 63%);background-size:400% 100%;
  animation:sk 1.4s infinite;border-radius:6px;height:14px}
@keyframes sk{0%{background-position:100% 0}100%{background-position:0 0}}

/* ---------- streak calendar ---------- */
.cal{display:grid;grid-template-columns:repeat(14,1fr);gap:4px}
.cal i{aspect-ratio:1;border-radius:3px;background:var(--line);display:block;position:relative}
.cal i.on{background:color-mix(in srgb,var(--green) 70%,transparent)}
.cal i.today{box-shadow:0 0 0 1.5px var(--green)}

/* ---------- achievements ---------- */
.ach{display:flex;flex-direction:column;gap:8px;padding:14px;border:1px solid var(--line);border-radius:var(--r);position:relative;overflow:hidden;transition:.2s}
.ach.locked{opacity:.42}
.ach:hover{border-color:var(--line-2)}
.ach .ic{width:34px;height:34px;border-radius:9px;display:grid;place-items:center;font-size:17px;
  background:var(--panel-2);border:1px solid var(--line-2)}
.ach.gold .ic{color:var(--amber);border-color:color-mix(in srgb,var(--amber) 45%,transparent)}
.ach.silver .ic{color:var(--ink);border-color:var(--line-2)}
.ach.bronze .ic{color:var(--ink-2)}
.ach h4{font-size:13px;font-weight:540}
.ach p{font-size:11.5px;color:var(--ink-3);line-height:1.4}
.ach .when{font-family:var(--mono);font-size:9.5px;color:var(--ink-3)}

/* ---------- leaderboard ---------- */
.lb{width:100%;border-collapse:collapse}
.lb th{text-align:right;font-family:var(--mono);font-size:9.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-3);
  padding:8px 10px;border-bottom:1px solid var(--line);font-weight:500}
.lb th:first-child,.lb td:first-child{text-align:left;width:44px}
.lb th:nth-child(2),.lb td:nth-child(2){text-align:left}
.lb td{padding:9px 10px;border-bottom:1px solid color-mix(in srgb,var(--line) 60%,transparent);text-align:right;
  font-family:var(--mono);font-size:12px;font-variant-numeric:tabular-nums;color:var(--ink-2)}
.lb tr.me td{background:color-mix(in srgb,var(--blue) 10%,transparent);color:var(--ink)}
.lb tbody tr{transition:background .15s}
.lb tbody tr:hover td{background:var(--panel-2)}
.lb .who{display:flex;align-items:center;gap:9px;font-family:var(--sans);font-size:13px;color:var(--ink)}
.rank{font-family:var(--mono);font-size:11px;color:var(--ink-3)}
.rank.top{color:var(--amber)}

/* ---------- race ---------- */
.race{max-width:900px;margin:0 auto}
.race-head{display:grid;grid-template-columns:1fr auto 1fr;gap:14px;align-items:center;margin-bottom:20px}
.racer{display:flex;flex-direction:column;gap:7px}
.racer.right{align-items:flex-end;text-align:right}
.racer .nm{font-size:13px;font-weight:520}
.racer .sc{font-family:var(--mono);font-size:22px;letter-spacing:-.03em}
.rbar{height:6px;border-radius:3px;background:var(--line);overflow:hidden;width:100%}
.rbar i{display:block;height:100%;width:0;transition:width .45s var(--ease);border-radius:3px}
.rbar.me i{background:var(--green)} .rbar.opp i{background:var(--blue)}
.vs{font-family:var(--mono);font-size:10px;letter-spacing:.18em;color:var(--ink-3)}
.q-card{border:1px solid var(--line-2);border-radius:12px;background:var(--bg-2);padding:22px;animation:qin .32s var(--ease) both}
@keyframes qin{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.q-num{font-family:var(--mono);font-size:10px;letter-spacing:.14em;color:var(--ink-3);margin-bottom:10px}
.q-text{font-size:16.5px;line-height:1.5;letter-spacing:-.01em;margin-bottom:18px}
.opt{display:flex;align-items:flex-start;gap:11px;width:100%;text-align:left;padding:12px 14px;margin-bottom:7px;
  border:1px solid var(--line);border-radius:8px;font-size:14px;color:var(--ink-2);transition:.15s}
.opt:hover:not(:disabled){border-color:var(--line-2);background:var(--panel);color:var(--ink)}
.opt .l{font-family:var(--mono);font-size:10.5px;color:var(--ink-3);padding-top:2px}
.opt.correct{border-color:var(--green);background:color-mix(in srgb,var(--green) 10%,transparent);color:var(--ink)}
.opt.wrong{border-color:var(--red);background:color-mix(in srgb,var(--red) 10%,transparent);color:var(--ink)}
.opt:disabled{cursor:default}
.verdict{margin-top:12px;padding-top:12px;border-top:1px solid var(--line);font-size:12.5px;color:var(--ink-2);line-height:1.5}
.countdown{position:fixed;inset:0;z-index:200;display:grid;place-items:center;background:color-mix(in srgb,var(--bg) 92%,transparent);backdrop-filter:blur(8px)}
.countdown b{font-family:var(--mono);font-size:clamp(90px,22vw,220px);letter-spacing:-.06em;line-height:1;
  animation:pop .9s var(--ease)}
@keyframes pop{0%{opacity:0;transform:scale(.7)}40%{opacity:1;transform:scale(1)}100%{opacity:.15;transform:scale(1.06)}}
.result{text-align:center;padding:30px 10px}
.result .verdict-big{font-family:var(--mono);font-size:clamp(34px,7vw,64px);letter-spacing:-.05em;line-height:1;margin:12px 0}
.scoreline{display:flex;align-items:center;justify-content:center;gap:26px;margin:26px 0}
.scoreline .side{display:flex;flex-direction:column;align-items:center;gap:6px}
.scoreline .n{font-family:var(--mono);font-size:34px;letter-spacing:-.04em}
.scoreline .w{font-size:12px;color:var(--ink-3)}

/* ---------- overlays ---------- */
.modal{position:fixed;inset:0;z-index:220;display:none;place-items:center;background:rgba(0,0,0,.55);backdrop-filter:blur(6px);padding:20px}
.modal.open{display:grid}
.modal-card{width:min(420px,100%);background:var(--bg-2);border:1px solid var(--line-2);border-radius:14px;padding:26px;text-align:center;
  animation:modalin .35s var(--ease) both}
@keyframes modalin{from{opacity:0;transform:translateY(12px) scale(.98)}to{opacity:1;transform:none}}
.toast-wrap{position:fixed;right:20px;bottom:20px;z-index:240;display:flex;flex-direction:column;gap:8px;align-items:flex-end}
.toast{background:var(--bg-3);border:1px solid var(--line-2);border-radius:8px;padding:10px 14px;font-size:12.5px;
  box-shadow:0 18px 40px -20px rgba(0,0,0,.8);animation:toastin .3s var(--ease) both;max-width:320px}
@keyframes toastin{from{opacity:0;transform:translateX(16px)}to{opacity:1;transform:none}}
.xp-float{position:fixed;font-family:var(--mono);font-size:13px;color:var(--green);pointer-events:none;z-index:250;
  animation:xpup 1.2s var(--ease) forwards}
@keyframes xpup{0%{opacity:0;transform:translateY(6px)}25%{opacity:1}100%{opacity:0;transform:translateY(-34px)}}
@media(prefers-reduced-motion:reduce){*{animation-duration:.01ms!important;transition-duration:.01ms!important}}