:root {
  --bg: #0b1020; --card: #182142; --line: #263259; --text: #e8ecf7;
  --muted: #9aa6c7; --accent: #4f8cff; --danger: #ff5c7a; --dev: #f5a623;
}
* { box-sizing: border-box; }
body {
  margin: 0; font-family: "Segoe UI", system-ui, sans-serif;
  background: radial-gradient(1200px 600px at 70% -10%, #1a2550 0%, var(--bg) 55%);
  color: var(--text); min-height: 100vh;
}
.auth-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 20px; }
.auth-card {
  width: 100%; max-width: 380px; background: var(--card);
  border: 1px solid var(--line); border-radius: 16px; padding: 28px;
}
.auth-brand { font-weight: 700; font-size: 20px; margin-bottom: 18px; }
.dev-pill {
  font-size: 11px; font-weight: 700; letter-spacing: 1px; color: #1b1300;
  background: var(--dev); border-radius: 6px; padding: 2px 7px; vertical-align: middle;
}
.tabs { display: flex; gap: 6px; margin-bottom: 18px; }
.tab {
  flex: 1; padding: 9px; border: 1px solid var(--line); background: transparent;
  color: var(--muted); border-radius: 9px; cursor: pointer; font-size: 14px;
}
.tab.is-active { background: var(--accent); color: #fff; border-color: var(--accent); }
form { display: flex; flex-direction: column; gap: 14px; }
label { display: flex; flex-direction: column; gap: 6px; font-size: 13px; color: var(--muted); }
input {
  padding: 11px 12px; border-radius: 10px; border: 1px solid var(--line);
  background: #0e1530; color: var(--text); font-size: 15px;
}
input:focus { outline: none; border-color: var(--accent); }
.auth-btn {
  margin-top: 4px; padding: 12px; border: 0; border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), #6aa0ff);
  color: #fff; font-weight: 600; font-size: 15px; cursor: pointer;
}
.auth-btn:disabled { opacity: 0.6; cursor: default; }
.auth-error {
  margin: 0; color: var(--danger); font-size: 13px;
  background: rgba(255,92,122,0.12); border: 1px solid rgba(255,92,122,0.3);
  border-radius: 8px; padding: 8px 10px;
}
.auth-hint { margin: 16px 0 0; font-size: 12px; color: var(--muted); text-align: center; }