:root {
  color-scheme: dark;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
html, body {
  margin: 0;
  min-height: 100%;
  background: var(--auth-bg, radial-gradient(circle at 20% 0%, rgba(56, 189, 248, .20), transparent 34rem), linear-gradient(135deg, #050816, #10162d 54%, #060811));
}
#root {
  min-height: 100vh;
}
#authGate {
  position: fixed;
  inset: 0;
  z-index: 999999;
  display: grid;
  place-items: center;
  padding: 24px;
  overflow: hidden;
}
.auth-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 38% 42%, var(--auth-glow-a, rgba(109, 93, 252, .24)), transparent 22rem),
    radial-gradient(circle at 62% 56%, var(--auth-glow-b, rgba(236, 72, 153, .18)), transparent 18rem),
    var(--auth-veil, rgba(2, 6, 23, .68));
  backdrop-filter: blur(22px) saturate(1.2);
}
.auth-card {
  position: relative;
  width: min(430px, 92vw);
  border: 1px solid rgba(255, 255, 255, .20);
  border-radius: 28px;
  padding: 30px;
  color: var(--auth-text, #eef2ff);
  background: var(--auth-card, linear-gradient(145deg, rgba(15, 23, 42, .78), rgba(15, 23, 42, .48)));
  box-shadow: 0 30px 100px rgba(0,0,0,.62), inset 0 1px 0 rgba(255,255,255,.16);
}
.auth-card img {
  display: block;
  width: 190px;
  max-width: 68%;
  margin: 0 auto 18px;
}
.auth-kicker {
  margin: 0 0 8px;
  text-align: center;
  color: var(--auth-accent, #93c5fd);
  font-size: 12px;
  letter-spacing: .14em;
  text-transform: uppercase;
}
.auth-card h1 {
  margin: 0;
  text-align: center;
  font-size: 25px;
  letter-spacing: -.03em;
}
.auth-text {
  margin: 12px auto 20px;
  max-width: 34ch;
  text-align: center;
  color: var(--auth-muted, #cbd5e1);
  line-height: 1.45;
}
.auth-card input {
  width: 100%;
  height: 48px;
  border: 1px solid rgba(148, 163, 184, .35);
  border-radius: 16px;
  padding: 0 14px;
  color: var(--auth-text, #eef2ff);
  background: var(--auth-input, rgba(15, 23, 42, .88));
  outline: none;
}
.auth-card input:focus {
  border-color: var(--auth-accent, #38bdf8);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--auth-accent, #38bdf8) 20%, transparent);
}
.auth-card button {
  width: 100%;
  height: 46px;
  margin-top: 12px;
  border: 0;
  border-radius: 16px;
  color: white;
  font-weight: 800;
  cursor: pointer;
  background: var(--auth-button, linear-gradient(135deg, #0ea5e9, #6d5dfc 55%, #ec4899));
  box-shadow: 0 14px 34px rgba(14, 165, 233, .22);
}
.auth-error {
  min-height: 18px;
  margin: 12px 0 0;
  text-align: center;
  color: #fecaca;
  font-size: 13px;
}


html.auth-theme-dune { --auth-bg: linear-gradient(135deg,#f6eddc,#d8c39f); --auth-glow-a: rgba(139,90,36,.22); --auth-glow-b: rgba(185,132,62,.16); --auth-veil: rgba(80,55,28,.32); --auth-card: linear-gradient(145deg,rgba(255,244,223,.86),rgba(242,223,189,.66)); --auth-text:#2d2115; --auth-muted:#695038; --auth-accent:#8b5a24; --auth-input:#fff8ea; --auth-button:linear-gradient(135deg,#8b5a24,#b9843e); }
html.auth-theme-starkforge { --auth-bg: linear-gradient(135deg,#090504,#26100c); --auth-accent:#f0b51f; --auth-muted:#d7ae6f; --auth-button:linear-gradient(135deg,#f0b51f,#9f1d19); }
html.auth-theme-oblivion { --auth-bg: linear-gradient(135deg,#f8fafc,#dbeafe); --auth-veil: rgba(225,235,248,.46); --auth-card: linear-gradient(145deg,rgba(242,248,255,.88),rgba(226,235,245,.72)); --auth-text:#142233; --auth-muted:#52677a; --auth-accent:#27b7d5; --auth-input:#ffffff; --auth-button:linear-gradient(135deg,#27b7d5,#7b8da3); }
html.auth-theme-acheron { --auth-bg: linear-gradient(135deg,#070807,#1b1e17); --auth-accent:#d6e37a; --auth-muted:#a9ad8b; --auth-button:linear-gradient(135deg,#d6e37a,#6f745b); }
html.auth-theme-atrium { --auth-bg: linear-gradient(135deg,#ecfdf5,#e4f1df); --auth-veil:rgba(20,80,65,.26); --auth-card:linear-gradient(145deg,rgba(240,250,240,.86),rgba(223,242,225,.72)); --auth-text:#18362c; --auth-muted:#60796d; --auth-accent:#5a9f82; --auth-input:#fbfff9; --auth-button:linear-gradient(135deg,#79b98f,#5a9f82); }
html.auth-theme-tumbler { --auth-bg: linear-gradient(135deg,#0b0c0d,#25272a); --auth-accent:#c98535; --auth-muted:#a99f90; --auth-button:linear-gradient(135deg,#c98535,#545b62); }
html.auth-theme-studio { --auth-bg: linear-gradient(135deg,#111827,#263449); --auth-accent:#a78bfa; --auth-button:linear-gradient(135deg,#a78bfa,#38bdf8); }
html.auth-theme-nuke { --auth-bg: linear-gradient(135deg,#10110a,#242412); --auth-accent:#d4d84f; --auth-muted:#c6c98f; --auth-button:linear-gradient(135deg,#d4d84f,#71722e); }
html.auth-theme-race { --auth-bg: linear-gradient(135deg,#120b0b,#221d1d); --auth-accent:#e11d48; --auth-button:linear-gradient(135deg,#e11d48,#f97316); }