/* RESET */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
body {
  font-family: "Segoe UI", sans-serif;
  min-height: 100vh;
  background:
    radial-gradient(circle at top left, rgba(59, 130, 246, 0.12), transparent 26%),
    radial-gradient(circle at top right, rgba(245, 158, 11, 0.12), transparent 22%),
    linear-gradient(180deg, #f8fbff 0%, #eef4fb 52%, #edf2f7 100%);
  color: #0f172a;
  transition:
    background-color 0.2s ease,
    color 0.2s ease;
}

.auth-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  background: #eef2f7;
}

.auth-shell {
  width: min(420px, calc(100vw - 32px));
}

.auth-card {
  background: #fff;
  border: 1px solid #dbe5ef;
  border-radius: 12px;
  padding: 28px;
  box-shadow: 0 18px 45px rgba(15, 23, 42, 0.12);
}

.auth-brand {
  font-size: 24px;
  font-weight: 800;
  color: #0f172a;
  margin-bottom: 8px;
}

.auth-card h1 {
  font-size: 22px;
  margin-bottom: 18px;
  color: #1e293b;
}

.auth-form {
  display: grid;
  gap: 14px;
}

.auth-form label {
  display: grid;
  gap: 6px;
  color: #334155;
  font-weight: 600;
}

.auth-form input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid #cbd5e1;
  border-radius: 8px;
}

.auth-alt {
  margin-top: 16px;
  color: #475569;
}

.auth-alt a {
  color: #1d4ed8;
  font-weight: 600;
}

.alert {
  border-radius: 8px;
  padding: 10px 12px;
  margin-bottom: 14px;
  font-size: 14px;
}

.alert.error {
  background: #fee2e2;
  color: #991b1b;
}

.alert.success {
  background: #dcfce7;
  color: #166534;
}

.alert.warning {
  background: #fff7ed;
  color: #9a3412;
}