:root {
  --ua-blue: #003366;
  --ua-gold: #ffd700;
  --ua-btn-bg: #003366;
  --ua-btn-bg-hover: #012a54;
  --ua-btn-color: #fff;
  --ua-btn-radius: 8px;
  --ua-btn-shadow: 0 2px 10px #00336622;
}

body {
  background: #f6f8fb;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  font-family: 'Segoe UI', Arial, sans-serif;
  color: #162029;
}

.login-card {
  background: #fff;
  border-radius: 18px;
  box-shadow: 0 2px 14px #00336622;
  padding: 36px 32px 32px 32px;
  max-width: 410px;
  width: 96vw;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.login-header {
  font-size: 2.1em;
  color: var(--ua-blue);
  font-weight: 700;
  margin-bottom: 0.65em;
  letter-spacing: 1px;
  text-align: center;
}

.login-desc {
  font-size: 1.02em;
  color: #162029;
  opacity: 0.8;
  text-align: center;
  margin-bottom: 1.2em;
}

.login-btn-group {
  display: flex;
  flex-direction: column;
  gap: 1.2em;
  width: 100%;
  margin-top: 1.2em;
  margin-bottom: 1em;
}

.login-btn {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  background: var(--ua-btn-bg);
  color: var(--ua-btn-color);
  border: none;
  border-radius: var(--ua-btn-radius);
  font-weight: 600;
  box-shadow: var(--ua-btn-shadow);
  font-size: 1.15em;
  padding: 0.7em 0.5em 0.7em 1.1em;
  cursor: pointer;
  transition: background 0.16s, box-shadow 0.16s;
  gap: 0.8em;
  width: 100%;
  text-align: left;
}

.login-btn:hover {
  background: var(--ua-btn-bg-hover);
  box-shadow: 0 2px 18px #00336638;
}

.login-btn .provider-icon {
  font-size: 1.5em;
  margin-right: 0.6em;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.4em;
  height: 1.4em;
}

.ms-icon {
  color: #0078d4;
  background: #fff;
  border-radius: 50%;
  padding: 3px;
  border: 1px solid #e0e0e0;
}
.google-icon {
  background: #fff;
  border-radius: 50%;
  padding: 2px;
  border: 1px solid #e0e0e0;
}

.login-footer {
  font-size: 0.94em;
  color: #888;
  margin-top: 2.3em;
  text-align: center;
}

@media (max-width: 500px) {
  .login-card {
    padding: 20px 1vw 24px 1vw;
    margin: 0 1vw 0 1vw;
  }
  .login-header {
    font-size: 1.3em;
  }
}