:root {
  color-scheme: dark;
  --bg: #0b0d12; --panel: #151922; --line: #232a36; --text: #e8ebf1; --muted: #8a93a6; --accent: #f5b942; --bad: #ef5b5b;
  font-family: system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
}
* { box-sizing: border-box; }
body {
  margin: 0; min-height: 100vh; display: grid; place-items: center; padding: 24px;
  background: radial-gradient(1200px 600px at 20% -10%, #1c2333 0%, var(--bg) 60%); color: var(--text);
}
.card { width: 100%; max-width: 420px; background: var(--panel); border: 1px solid var(--line); border-radius: 20px; padding: 28px; box-shadow: 0 30px 80px rgba(0,0,0,.45); }
.brand { display: flex; align-items: center; gap: 14px; margin-bottom: 22px; }
.brand h1 { margin: 0; font-size: 24px; }
.brand p { margin: 2px 0 0; color: var(--muted); font-size: 14px; }
.error { background: rgba(239,91,91,.12); border: 1px solid rgba(239,91,91,.4); color: #ffb4b4; border-radius: 10px; padding: 10px 12px; font-size: 14px; margin: 0 0 16px; }
form { display: grid; gap: 18px; }
.field { display: grid; gap: 8px; color: var(--muted); font-size: 13px; }
.field input { font: inherit; font-size: 16px; color: var(--text); background: var(--bg); border: 1px solid var(--line); border-radius: 12px; padding: 12px 14px; }
.field input:focus { outline: none; border-color: var(--accent); }
button { font: inherit; font-weight: 700; font-size: 16px; border: 0; border-radius: 12px; padding: 13px; background: var(--accent); color: #1a1405; cursor: pointer; }
button:hover { filter: brightness(1.05); }