* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  height: 100%;
  font-family: Inter, Pretendard, -apple-system, BlinkMacSystemFont,
    "Segoe UI", Arial, sans-serif;
  background: #f5f7fa;
  color: #172033;
}

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

.login-card {
  width: 100%;
  max-width: 400px;
  padding: 36px 32px 28px;
  background: white;
  border: 1px solid #e5e7eb;
  border-radius: 12px;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.02);
}

.login-brand {
  display: flex;
  align-items: center;
  margin-bottom: 8px;
}

.login-brand-mark {
  width: 40px;
  height: 40px;
  border-radius: 11px;
  background: #111827;
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 800;
}

.login-brand-text {
  margin-left: 12px;
  display: flex;
  flex-direction: column;
}

.login-brand-text strong {
  font-size: 15px;
  letter-spacing: 0.5px;
}

.login-brand-text span {
  margin-top: 2px;
  font-size: 10px;
  letter-spacing: 2px;
  color: #9ca3af;
}

.login-subtitle {
  margin: 0 0 24px;
  color: #6b7280;
  font-size: 13px;
}

.login-form {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.login-label {
  font-size: 12px;
  font-weight: 600;
  color: #4b5563;
}

.login-input {
  width: 100%;
  height: 40px;
  padding: 0 12px;
  margin-bottom: 8px;
  border: 1px solid #e5e7eb;
  border-radius: 8px;
  background: white;
  color: #172033;
  font-size: 13px;
  outline: none;
  transition:
    border-color 0.15s ease,
    box-shadow 0.15s ease;
}

.login-input:focus {
  border-color: #111827;
  box-shadow: 0 0 0 3px rgba(17, 24, 39, 0.06);
}

.login-button {
  width: 100%;
  height: 42px;
  margin-top: 8px;
  border: 0;
  border-radius: 8px;
  background: #111827;
  color: white;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s ease;
}

.login-button:hover {
  background: #1f2937;
}

.login-button:disabled {
  background: #9ca3af;
  cursor: not-allowed;
}

.login-error {
  margin-top: 16px;
  padding: 10px 12px;
  border-radius: 8px;
  background: #fef2f2;
  border: 1px solid #fecaca;
  color: #b91c1c;
  font-size: 12px;
  line-height: 1.5;
}

.login-footer-note {
  margin: 20px 0 0;
  color: #9ca3af;
  font-size: 11px;
  text-align: center;
}

.login-link-row {
  margin: 20px 0 0;
  text-align: center;
  font-size: 12px;
}

.login-link {
  color: #111827;
  text-decoration: none;
  font-weight: 600;
}

.login-link:hover {
  text-decoration: underline;
}

.login-success {
  margin-top: 8px;
}

.login-success-title {
  margin: 0 0 8px;
  font-size: 15px;
  font-weight: 700;
  color: #111827;
  text-align: center;
}

.login-success-text {
  margin: 0 0 20px;
  color: #6b7280;
  font-size: 13px;
  text-align: center;
  line-height: 1.5;
}

.login-button-link {
  display: block;
  text-align: center;
  text-decoration: none;
  line-height: 42px;
}

@media (max-width: 480px) {
  .login-card {
    padding: 28px 22px 22px;
  }
}