.auth-container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 20px;
  background: var(--background);
}

.auth-box {
  background: var(--surface);
  width: 100%;
  max-width: 440px;
  padding: 40px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-light);
}

.auth-box[hidden] {
  display: none !important;
}

body.auth-embedded {
  background: transparent;
  overflow: auto;
}

body.auth-embedded .auth-container {
  min-height: auto;
  padding: 12px 0;
  background: transparent;
}

body.auth-embedded .auth-box {
  max-width: 100%;
  padding: 28px 32px;
  border: 0;
  border-radius: 0;
  box-shadow: none;
}

.auth-header {
  text-align: center;
  margin-bottom: 32px;
}

.auth-header h1 {
  font-size: 1.75rem;
  margin-bottom: 8px;
}

.auth-header .brand {
  color: var(--primary);
}

.auth-header p {
  font-size: 0.9375rem;
  color: var(--text-muted);
  margin: 0;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.submit-btn {
  width: 100%;
  padding: 14px;
  background-color: var(--primary);
  color: var(--text-inverse);
  border: none;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.9375rem;
  cursor: pointer;
  transition: background var(--transition-fast);
  margin-top: 8px;
}

.submit-btn:hover {
  background-color: var(--primary-light);
}

.auth-toggle {
  text-align: center;
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--border-light);
  font-size: 0.9375rem;
  color: var(--text-muted);
}

.auth-toggle-link {
  color: var(--primary);
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  background: none;
  border: 0;
  padding: 0;
}

.auth-toggle-link:hover {
  text-decoration: underline;
}

.password-toggle {
  position: absolute;
  right: 12px;
  top: 38px;
  cursor: pointer;
  color: var(--text-muted);
  background: none;
  border: none;
  padding: 0;
  font-size: 0.8rem;
  font-weight: 700;
  min-width: 44px;
}

.password-toggle:hover {
  color: var(--primary);
}

.input-group {
  position: relative;
  margin-bottom: 20px;
}

.input-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-main);
  margin-bottom: 6px;
}

.input-group input {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-size: 0.9375rem;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  background: var(--surface);
}

.input-group input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(11, 31, 58, 0.1);
}

.choice-toggle {
  display: grid;
  gap: 12px;
}

.auth-role-toggle label {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 12px;
  align-items: start;
  padding: 14px;
  border: 1px solid var(--border-light);
  border-radius: 14px;
  cursor: pointer;
  background: #fff;
}

.auth-role-toggle input {
  margin-top: 4px;
  width: auto;
}

.auth-role-toggle strong {
  display: block;
  color: var(--primary);
  margin-bottom: 4px;
}

.auth-role-toggle small {
  display: block;
  color: var(--text-muted);
  line-height: 1.55;
}

.input-group.with-icon input {
  padding-right: 40px;
}

.alert-error {
  background: var(--error-bg);
  color: var(--error);
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  margin-bottom: 20px;
  font-size: 0.875rem;
  border: 1px solid #FECACA;
}

@media (max-width: 640px) {
  .auth-box {
    padding: 28px 22px;
  }

  .form-row {
    grid-template-columns: 1fr;
  }
}