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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto",
    "Helvetica Neue", Arial, sans-serif;
  background: #f8fafc;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  line-height: 1.6;
}

.login-container {
  width: 100%;
  max-width: 400px;
}

.login-card {
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  padding: 32px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  transition: all 0.2s ease;
}

.login-card:hover {
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

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

.login-header h2 {
  color: #1a202c;
  font-size: 1.75rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.login-header p {
  color: #718096;
  font-size: 14px;
  font-weight: 400;
}

/* Form Group & Input Styles */
.form-group {
  margin-bottom: 20px;
  position: relative;
}

.input-wrapper {
  position: relative;
  display: flex;
  flex-direction: column;
}

.input-wrapper input {
  background: #ffffff;
  border: 1px solid #d1d5db;
  border-radius: 6px;
  padding: 12px 16px;
  color: #1a202c;
  font-size: 16px;
  font-weight: 400;
  transition: all 0.2s ease;
  width: 100%;
  outline: none;
}

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

.input-wrapper input:focus + label,
.input-wrapper input:not(:placeholder-shown) + label,
.input-wrapper input:-webkit-autofill + label {
  transform: translateY(-32px) scale(0.85);
  color: #3b82f6;
  font-weight: 500;
}

.input-wrapper label {
  position: absolute;
  left: 16px;
  top: 12px;
  color: #718096;
  font-size: 16px;
  font-weight: 400;
  transition: all 0.2s ease;
  pointer-events: none;
  transform-origin: left top;
  background: #ffffff;
  padding: 0 4px;
}

/* Password Toggle */
.input-wrapper .password-toggle {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  color: #718096;
  transition: color 0.2s ease;
  z-index: 2;
}

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

.toggle-icon {
  display: block;
  width: 16px;
  height: 16px;
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%23718096' stroke-width='1.5'%3e%3cpath stroke-linecap='round' stroke-linejoin='round' d='M15 12a3 3 0 11-6 0 3 3 0 016 0z'/%3e%3cpath stroke-linecap='round' stroke-linejoin='round' d='M2.458 12C3.732 7.943 7.523 5 12 5c4.478 0 8.268 2.943 9.542 7-1.274 4.057-5.064 7-9.542 7-4.477 0-8.268-2.943-9.542-7z'/%3e%3c/svg%3e");
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
  transition: background-image 0.2s ease;
}

.password-toggle:hover .toggle-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%233b82f6' stroke-width='1.5'%3e%3cpath stroke-linecap='round' stroke-linejoin='round' d='M15 12a3 3 0 11-6 0 3 3 0 016 0z'/%3e%3cpath stroke-linecap='round' stroke-linejoin='round' d='M2.458 12C3.732 7.943 7.523 5 12 5c4.478 0 8.268 2.943 9.542 7-1.274 4.057-5.064 7-9.542 7-4.477 0-8.268-2.943-9.542-7z'/%3e%3c/svg%3e");
}

.toggle-icon.show-password {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%23718096' stroke-width='1.5'%3e%3cpath stroke-linecap='round' stroke-linejoin='round' d='M3.98 8.223A10.477 10.477 0 001.934 12C3.226 16.338 7.244 19.5 12 19.5c.993 0 1.953-.138 2.863-.395M6.228 6.228A10.45 10.45 0 0112 4.5c4.756 0 8.773 3.162 10.065 7.498a10.523 10.523 0 01-4.293 5.774M6.228 6.228L3 3m3.228 3.228l3.65 3.65m7.894 7.894L21 21m-3.228-3.228l-3.65-3.65m0 0a3 3 0 11-4.243-4.243m4.242 4.242L9.88 9.88'/%3e%3c/svg%3e");
}

.form-options {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 12px;
}

.remember-wrapper {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
}

.remember-wrapper input[type="checkbox"] {
  display: none;
}

.checkmark {
  width: 16px;
  height: 16px;
  border: 1px solid #d1d5db;
  border-radius: 3px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  flex-shrink: 0;
  background: #ffffff;
}

.remember-wrapper input[type="checkbox"]:checked + .checkbox-label .checkmark {
  background: #3b82f6;
  border-color: #3b82f6;
}

.remember-wrapper
  input[type="checkbox"]:checked
  + .checkbox-label
  .checkmark::after {
  content: "✓";
  color: white;
  font-size: 10px;
  font-weight: bold;
}

.checkbox-label {
  color: #4a5568;
  font-size: 14px;
  cursor: pointer;
  user-select: none;
  display: flex;
  align-items: center;
  gap: 8px;
}

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

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

.login-btn {
  width: 100%;
  background: #3b82f6;
  border: none;
  border-radius: 6px;
  padding: 12px 24px;
  color: white;
  font-size: 16px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  position: relative;
  margin-bottom: 24px;
}

.login-btn:hover {
  background: #2563eb;
  transform: translateY(-1px);
  box-shadow: 0 4px 6px rgba(59, 130, 246, 0.2);
}

.login-btn:active {
  transform: translateY(0);
}

/* Loading State */
.login-btn.loading {
  pointer-events: none;
  background: #9ca3af;
}

.btn-text {
  transition: opacity 0.2s ease;
}

.btn-loader {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 16px;
  height: 16px;
  border: 2px solid transparent;
  border-top: 2px solid white;
  border-radius: 50%;
  opacity: 0;
  animation: spin 1s linear infinite;
  transition: opacity 0.2s ease;
}

.login-btn.loading .btn-text {
  opacity: 0;
}

.login-btn.loading .btn-loader {
  opacity: 1;
}

/* Error States */
.error-message {
  color: #dc2626;
  font-size: 12px;
  font-weight: 500;
  margin-top: 6px;
  margin-left: 4px;
  opacity: 0;
  transform: translateY(-10px);
  transition: all 0.2s ease;
}

.error-message.show {
  opacity: 1;
  transform: translateY(0);
}

.form-group.error .input-wrapper input {
  border-color: #dc2626;
  box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
}

.success-message {
  display: none;
  text-align: center;
  padding: 32px 20px;
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.3s ease;
}

.success-message.show {
  display: block;
  opacity: 1;
  transform: translateY(0);
}

.success-icon {
  width: 48px;
  height: 48px;
  background: #059669;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: white;
  margin: 0 auto 16px;
}

.success-message h3 {
  color: #1a202c;
  font-size: 1.25rem;
  margin-bottom: 8px;
}

.success-message p {
  color: #718096;
  font-size: 14px;
}

/* Signup Link */
.signup-link {
  text-align: center;
}

.signup-link p {
  color: #718096;
  font-size: 14px;
}

.signup-link a {
  color: #3b82f6;
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s ease;
}

.signup-link a:hover {
  color: #2563eb;
}

@keyframes spin {
  0% {
    transform: translate(-50%, -50%) rotate(0deg);
  }
  100% {
    transform: translate(-50%, -50%) rotate(360deg);
  }
}

/* Mobile Responsive */
@media (max-width: 480px) {
  body {
    padding: 16px;
  }

  .login-card {
    padding: 24px;
  }

  .login-header h2 {
    font-size: 1.5rem;
  }

  .form-options {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }
}

.form-group.error .input-wrapper label {
  color: #dc2626;
}