:root {
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --danger: #dc2626;
  --bg: #f8fafc;
  --card: #ffffff;
  --text: #0f172a;
  --muted: #64748b;
  --border: #e2e8f0;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: linear-gradient(135deg, #eff6ff 0%, #f8fafc 100%);
  color: var(--text);
}

.login-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.login-card {
  width: min(460px, 100%);
  background: var(--card);
  border-radius: 18px;
  box-shadow: 0 20px 50px rgba(15, 23, 42, 0.08);
  padding: 32px;
}

.login-header h1 {
  margin: 0 0 8px;
  font-size: 30px;
}

.login-header p {
  margin: 0;
  color: var(--muted);
}

.login-form {
  display: grid;
  gap: 18px;
  margin-top: 24px;
}

.login-form label {
  display: grid;
  gap: 8px;
}

.login-form span {
  font-size: 14px;
  font-weight: 600;
}

.login-form input {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: 12px;
  font-size: 16px;
}

.login-form input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.12);
}

.login-form button {
  padding: 14px 18px;
  border: none;
  border-radius: 12px;
  background: var(--primary);
  color: white;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
}

.login-form button:hover {
  background: var(--primary-hover);
}

.login-form button:disabled {
  opacity: 0.6;
  cursor: wait;
}

.login-message {
  min-height: 20px;
  margin: 0;
  color: var(--danger);
  font-size: 14px;
}

.login-footer {
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 14px;
}