:root {
  color-scheme: dark;
  --bg: #0e0d10;
  --panel: #18161b;
  --line: #2c2830;
  --text: #f1edf2;
  --muted: #9b95a0;
  --accent: #fc2a2d;
  --accent-hover: #ff4a4c;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 16px;
  background: radial-gradient(ellipse at top, #2a0d10 0%, var(--bg) 60%);
  color: var(--text);
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
.card {
  width: 100%;
  max-width: 360px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 28px 24px 24px;
}
.logo {
  width: 40px; height: 40px; border-radius: 10px;
  background: var(--accent);
  box-shadow: 0 0 24px rgba(252, 42, 45, .55);
  margin-bottom: 16px;
}
h1 { font-size: 20px; margin: 0 0 4px; }
.sub { margin: 0 0 20px; color: var(--muted); font-size: 13px; }
label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 6px; }
input {
  width: 100%; padding: 10px 12px; border-radius: 8px;
  border: 1px solid var(--line); background: #0f0e11; color: var(--text); font: inherit;
}
input:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.error { min-height: 20px; margin: 8px 0; color: #ff7b7d; font-size: 13px; }
button {
  width: 100%; padding: 10px; border: 0; border-radius: 8px;
  background: var(--accent); color: #fff; font: 600 15px/1.2 inherit; cursor: pointer;
}
button:hover { background: var(--accent-hover); }