:root{
  color-scheme:dark;
  --bg:#03070b;
  --panel:#0a1018;
  --line:rgba(255,211,74,.24);
  --gold:#ffd34a;
  --teal:#00e6c3;
  --text:#f7f7f2;
  --muted:#91a0b2;
  --danger:#ff5578;
}

*{box-sizing:border-box}
[hidden]{display:none!important}
body{
  min-height:100vh;
  margin:0;
  color:var(--text);
  font-family:"Space Grotesk",sans-serif;
  background:
    linear-gradient(90deg,rgba(0,230,195,.06),transparent 32%,transparent 68%,rgba(255,63,104,.07)),
    #03070b;
}

body::before{
  position:fixed;
  inset:0;
  pointer-events:none;
  content:"";
  background-image:url("assets/brand/tilt-city-never-sleeps-bg.webp");
  background-position:center;
  background-size:cover;
  opacity:.16;
  filter:saturate(.65);
}

button,input{font:inherit}
button{cursor:pointer}

.authShell{
  position:relative;
  z-index:1;
  display:grid;
  grid-template-columns:minmax(280px, .9fr) minmax(360px, 520px);
  width:min(1120px,calc(100% - 40px));
  min-height:100vh;
  margin:auto;
  align-items:center;
  gap:clamp(40px,8vw,120px);
  padding:48px 0;
}

.authBrand{display:flex;align-items:center;gap:24px}
.authBrand img{width:128px;height:128px;object-fit:contain;filter:drop-shadow(0 0 28px rgba(255,211,74,.22))}
.authBrand span,.authCardTop span{color:var(--gold);font-size:11px;font-weight:800;text-transform:uppercase;letter-spacing:2px}
.authBrand h1{margin:4px 0 2px;font-family:"Bangers",sans-serif;font-size:clamp(58px,8vw,106px);font-weight:400;line-height:.86;letter-spacing:1px}
.authBrand p{margin:16px 0 0;color:#d8dce3;font-size:18px;font-weight:700;line-height:1.45}

.authCard{
  padding:32px;
  border:1px solid var(--line);
  border-radius:8px;
  background:linear-gradient(145deg,rgba(11,18,27,.97),rgba(4,8,13,.98));
  box-shadow:0 28px 80px rgba(0,0,0,.55),0 0 36px rgba(0,230,195,.08);
}
.authCardTop{padding-bottom:22px;border-bottom:1px solid rgba(255,255,255,.08)}
.authCardTop h2{margin:8px 0 6px;font-size:30px;letter-spacing:0}
.authCardTop p{margin:0;color:var(--muted)}

.authMessage{display:none;margin:18px 0 0;padding:12px 14px;border-left:3px solid var(--teal);background:rgba(0,230,195,.08);color:#c9fff5;font-size:13px;line-height:1.4}
.authMessage.show{display:block}
.authMessage.error{border-color:var(--danger);background:rgba(255,85,120,.09);color:#ffd2dc}
.authMessage a{color:var(--gold)}

.authForm{display:grid;gap:16px;margin-top:22px}
.authForm[hidden],.authState[hidden]{display:none}
.authForm label{display:grid;gap:7px;color:#cbd3df;font-size:12px;font-weight:800;text-transform:uppercase;letter-spacing:.7px}
.authForm label em{color:var(--muted);font-style:normal;font-weight:500;text-transform:none}
.authForm input{
  width:100%;
  height:48px;
  padding:0 13px;
  border:1px solid rgba(255,255,255,.14);
  border-radius:6px;
  outline:none;
  color:#fff;
  background:#050a11;
}
.authForm input:focus{border-color:var(--teal);box-shadow:0 0 0 3px rgba(0,230,195,.10)}
.authForm small{color:var(--muted);font-weight:500;text-transform:none;letter-spacing:0}
.authForm>button{
  min-height:50px;
  border:0;
  border-radius:6px;
  color:#07100e;
  background:linear-gradient(100deg,var(--teal),#63efff 54%,var(--gold));
  font-weight:900;
}
.authForm>button:disabled{cursor:wait;opacity:.55}
.fieldPair{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.checkRow{display:flex!important;align-items:center;gap:9px!important;text-transform:none!important;letter-spacing:0!important}
.checkRow input{width:18px;height:18px;margin:0;accent-color:var(--teal)}
.authLinks{display:flex;justify-content:space-between;gap:12px}
.authLinks button{padding:0;border:0;color:var(--muted);background:transparent;font-size:12px;font-weight:700}
.authLinks button:hover{color:var(--gold)}
.inviteAccepted{display:flex;justify-content:space-between;padding:11px 12px;border:1px solid rgba(0,230,195,.25);background:rgba(0,230,195,.07);color:var(--teal);font-size:12px;text-transform:uppercase}
.inviteAccepted strong{color:#fff}
.authState{display:grid;place-items:center;gap:12px;min-height:230px;text-align:center}
.authSpinner{width:38px;height:38px;border:3px solid rgba(255,255,255,.12);border-top-color:var(--teal);border-radius:50%;animation:spin .8s linear infinite}
.authState p{margin:0;color:var(--muted)}
.authCard footer{margin-top:24px;padding-top:18px;border-top:1px solid rgba(255,255,255,.07);color:#677486;font-size:10px;font-weight:800;text-align:center;text-transform:uppercase;letter-spacing:1.7px}
@keyframes spin{to{transform:rotate(360deg)}}

@media(max-width:820px){
  .authShell{grid-template-columns:1fr;width:min(520px,calc(100% - 28px));gap:30px;padding:28px 0}
  .authBrand{justify-content:center;text-align:left}
  .authBrand img{width:82px;height:82px}
  .authBrand h1{font-size:64px}
  .authBrand p{font-size:14px}
}
@media(max-width:480px){
  .authBrand{align-items:flex-start}.authBrand img{width:62px;height:62px}.authBrand h1{font-size:50px}
  .authCard{padding:23px 20px}.fieldPair{grid-template-columns:1fr}.authLinks{align-items:flex-start;flex-direction:column}
}