:root {
  --bg: #000000;
  --card: #141414;
  --border: #2A2A2A;
  --text: #FFFFFF;
  --muted: #A3A3A3;
  --accent: #DC2626;
  --accent-hover: #B91C1C;
  --danger: #EF4444;
  --radius: 14px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.auth-card {
  width: 100%;
  max-width: 420px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 32px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.35);
}

.auth-brand {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 4px;
}

.auth-card h1 {
  font-size: 1.4rem;
  margin: 0 0 6px;
}

.auth-card p.subtitle {
  color: var(--muted);
  margin: 0 0 24px;
  font-size: 0.92rem;
}

.field { margin-bottom: 16px; }

.field label {
  display: block;
  font-size: 0.85rem;
  margin-bottom: 6px;
  color: var(--muted);
}

.field input {
  width: 100%;
  padding: 11px 14px;
  background: #000000;
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text);
  font-size: 0.95rem;
  outline: none;
  transition: border-color .15s ease;
}

.field input:focus {
  border-color: var(--accent);
}

.btn-primary {
  width: 100%;
  padding: 12px;
  background: var(--accent);
  color: #FFFFFF;
  font-weight: 700;
  border: none;
  border-radius: 10px;
  font-size: 0.98rem;
  cursor: pointer;
  transition: background .15s ease;
}

.btn-primary:hover { background: var(--accent-hover); }

.alert {
  padding: 12px 14px;
  border-radius: 10px;
  font-size: 0.88rem;
  margin-bottom: 18px;
}

.alert-error {
  background: rgba(248,113,113,0.1);
  border: 1px solid rgba(248,113,113,0.35);
  color: var(--danger);
}

.alert-success {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.25);
  color: var(--text);
}

.auth-footer {
  margin-top: 20px;
  text-align: center;
  font-size: 0.88rem;
  color: var(--muted);
}

.auth-footer a { color: var(--accent); text-decoration: none; }
.auth-footer a:hover { text-decoration: underline; }