* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: linear-gradient(135deg, #1e3c72 0%, #2a5298 50%, #1e3c72 100%);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.login-container {
  width: 100%;
  max-width: 460px;
  animation: fadeInUp 0.6s ease-out;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.login-card {
  background: #ffffff;
  border-radius: 24px;
  padding: 48px 40px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.login-title {
  font-size: 32px;
  font-weight: 700;
  color: #1a1a1a;
  text-align: center;
  margin-bottom: 40px;
}

.login-form {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

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

.form-group label {
  font-size: 14px;
  font-weight: 600;
  color: #333;
  margin-bottom: 4px;
}

.required {
  color: #ef4444;
}

.input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.input-icon {
  position: absolute;
  left: 16px;
  color: #9ca3af;
  pointer-events: none;
  z-index: 1;
}

.input-wrapper input {
  width: 100%;
  padding: 14px 16px 14px 48px;
  border: 2px solid #e5e7eb;
  border-radius: 12px;
  font-size: 15px;
  color: #1a1a1a;
  background: #f9fafb;
  transition: all 0.3s ease;
  outline: none;
}

.input-wrapper input::placeholder {
  color: #9ca3af;
}

.input-wrapper input:focus {
  border-color: #3b82f6;
  background: #ffffff;
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.password-toggle {
  position: absolute;
  right: 12px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #9ca3af;
  transition: color 0.2s ease;
}

.password-toggle:hover {
  color: #3b82f6;
}

.eye-icon {
  width: 20px;
  height: 20px;
}

.form-footer {
  display: flex;
  justify-content: flex-end;
  margin-top: -8px;
}

.forgot-password {
  font-size: 14px;
  color: #3b82f6;
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s ease;
}

.forgot-password:hover {
  color: #2563eb;
  text-decoration: underline;
}

.login-btn {
  width: 100%;
  padding: 16px;
  background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
  color: #ffffff;
  border: none;
  border-radius: 12px;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.5px;
  cursor: pointer;
  transition: all 0.3s ease;
  margin-top: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.4);
}

.login-btn:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(59, 130, 246, 0.5);
}

.login-btn:active:not(:disabled) {
  transform: translateY(0);
}

.login-btn:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

.spinner {
  animation: spin 1s linear infinite;
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

.error-message {
  background: #fee2e2;
  border: 1px solid #fecaca;
  color: #dc2626;
  padding: 12px 16px;
  border-radius: 8px;
  font-size: 14px;
  text-align: center;
  animation: shake 0.4s ease-in-out;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-10px); }
  75% { transform: translateX(10px); }
}

/* Responsive Design */
@media (max-width: 520px) {
  .login-card {
    padding: 36px 24px;
  }

  .login-title {
    font-size: 28px;
  }
}