:root {
  color-scheme: light dark;
  --bg: #111416;
  --bg-soft: #1d302c;
  --surface: rgba(255, 255, 255, 0.08);
  --surface-strong: rgba(255, 255, 255, 0.12);
  --text: #f5f2ec;
  --muted: #c8c2b8;
  --line: rgba(255, 255, 255, 0.14);
  --accent: #83c5be;
  --danger: #ef7b73;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  min-height: 100dvh;
  font-family: "Segoe UI", Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(131, 197, 190, 0.24), transparent 32%),
    linear-gradient(180deg, var(--bg-soft), var(--bg));
  display: grid;
  place-items: center;
  padding: 1rem;
}
.card {
  width: min(500px, 100%);
  padding: 1.4rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}
.eyebrow {
  margin: 0 0 0.45rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.72rem;
  font-weight: 800;
  color: var(--accent);
}
h1 { margin: 0; font-size: clamp(2rem, 6vw, 3rem); }
p { color: var(--muted); line-height: 1.6; }
.oauth-grid, form {
  display: grid;
  gap: 0.8rem;
  margin-top: 1rem;
}
.oauth-button, button {
  min-height: 3rem;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: var(--accent);
  color: #10201d;
  display: flex;
  align-items: center;
  justify-content: center;
  font: inherit;
  font-weight: 800;
  text-decoration: none;
  cursor: pointer;
}
.oauth-button.discord {
  background: var(--surface-strong);
  color: var(--text);
}
.oauth-button[aria-disabled="true"] {
  opacity: 0.48;
  pointer-events: none;
}
label {
  display: grid;
  gap: 0.4rem;
  color: var(--muted);
  font-size: 0.92rem;
}
input {
  width: 100%;
  padding: 0.85rem;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: rgba(0, 0, 0, 0.16);
  color: var(--text);
  font: inherit;
}
.divider {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 0.75rem;
  margin: 1.2rem 0 0;
  color: var(--muted);
  font-size: 0.82rem;
}
.divider::before, .divider::after { content: ""; height: 1px; background: var(--line); }
.error, .notice {
  margin-top: 0.8rem;
  padding: 0.9rem 1rem 0.95rem;
  border-radius: 8px;
  color: var(--text);
  line-height: 1.55;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06);
}
.error {
  background: linear-gradient(135deg, rgba(239, 123, 115, 0.18), rgba(239, 123, 115, 0.08));
  border: 1px solid rgba(239, 123, 115, 0.42);
}
.notice {
  background: linear-gradient(135deg, rgba(131, 197, 190, 0.16), rgba(131, 197, 190, 0.07));
  border: 1px solid rgba(131, 197, 190, 0.4);
}
.error::before, .notice::before {
  display: block;
  margin-bottom: 0.25rem;
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.error::before { content: "Error"; color: var(--danger); }
.notice::before { content: "Notice"; color: var(--accent); }
.note { margin-top: 1rem; font-size: 0.88rem; }
a { color: var(--text); }
code { color: var(--text); }