:root {
  --bg-dark: #020617;
  --primary: #2563eb;
  --text-main: #f9fafb;
  --text-muted: #9ca3af;
  --danger: #ef4444;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: system-ui,-apple-system,BlinkMacSystemFont,"SF Pro Text","Roboto",sans-serif;
}

body {
  background: radial-gradient(circle at top, #020617 0, #020617 50%, #020617 100%);
  color: var(--text-main);
}

.login-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.login-card {
  background: #020617;
  border-radius: 24px;
  padding: 32px 28px 28px;
  max-width: 420px;
  width: 100%;
  box-shadow: 0 18px 40px rgba(15,23,42,.7);
  border: 1px solid #1f2937;
}

.login-card h1 {
  font-size: 1.9rem;
  margin-bottom: 4px;
}

.subtitle {
  font-size: .95rem;
  color: var(--text-muted);
  margin-bottom: 18px;
}

.login-card form {
  margin-top: 10px;
}

.login-card label {
  font-size: .85rem;
  font-weight: 500;
  color: var(--text-muted);
  display: block;
  margin-bottom: 4px;
}

.login-card input {
  width: 100%;
  padding: 10px 11px;
  border-radius: 10px;
  border: 1px solid #374151;
  margin-bottom: 14px;
  outline: none;
  font-size: .95rem;
  background: #020617;
  color: #f9fafb;
}

.login-card input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 1px rgba(37,99,235,.4);
}

.login-card button {
  width: 100%;
  padding: 11px 14px;
  border-radius: 999px;
  border: none;
  background: linear-gradient(135deg,#2563eb,#4f46e5);
  color: white;
  font-weight: 600;
  cursor: pointer;
  margin-top: 4px;
  transition: transform .15s ease, box-shadow .15s ease, filter .15s ease;
  box-shadow: 0 12px 30px rgba(37,99,235,.4);
}

.login-card button:hover {
  transform: translateY(-1px);
  box-shadow: 0 18px 40px rgba(37,99,235,.55);
  filter: brightness(1.03);
}

.login-card a {
  color: #60a5fa;
  text-decoration: none;
}

.login-card a:hover {
  text-decoration: underline;
}

.error {
  background: rgba(239,68,68,.12);
  border-radius: 10px;
  padding: 8px 10px;
  margin-bottom: 10px;
  font-size: .85rem;
  color: #fecaca;
  border: 1px solid rgba(248,113,113,.5);
}

.success {
  background: rgba(34,197,94,.12);
  border-radius: 10px;
  padding: 8px 10px;
  margin-bottom: 10px;
  font-size: .85rem;
  color: #bbf7d0;
  border: 1px solid rgba(74,222,128,.5);
}