/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 0.75rem 1.75rem;
  font-size: var(--fs-base);
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  white-space: nowrap;
}

.btn--primary {
  background: linear-gradient(
    135deg,
    var(--color-primary),
    var(--color-primary-dark)
  );
  color: var(--color-white);
  box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.4);
  color: var(--color-white);
}

.btn--secondary {
  background: var(--color-secondary);
  color: var(--color-white);
}

.btn--secondary:hover {
  background: var(--color-secondary-dark);
  transform: translateY(-2px);
  color: var(--color-white);
}

.btn--outline {
  border: 2px solid var(--color-primary);
  color: var(--color-primary);
  background: transparent;
}

.btn--outline:hover {
  background: var(--color-primary);
  color: var(--color-white);
}

.btn--large {
  padding: 1rem 2.5rem;
  font-size: var(--fs-md);
}

.btn--loading {
  pointer-events: none;
  opacity: 0.7;
  position: relative;
}

.btn--loading::after {
  content: "";
  width: 18px;
  height: 18px;
  border: 2px solid transparent;
  border-top-color: currentColor;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  margin-left: var(--space-sm);
}

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

/* Cards */
.card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-gray-200);
  transition: all var(--transition-base);
}

.card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.card__icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: var(--space-lg);
  background: linear-gradient(
    135deg,
    rgba(37, 99, 235, 0.1),
    rgba(255, 107, 53, 0.1)
  );
}

.card__title {
  font-size: var(--fs-lg);
  font-weight: 600;
  margin-bottom: var(--space-sm);
  color: var(--color-gray-900);
}

.card__text {
  font-size: var(--fs-sm);
  color: var(--color-gray-600);
  line-height: 1.6;
}

/* Stat Cards */
.stat-card {
  text-align: center;
  padding: var(--space-xl);
}

.stat-card__number {
  font-size: var(--fs-3xl);
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: var(--space-sm);
}

.stat-card__label {
  font-size: var(--fs-sm);
  color: var(--color-gray-600);
  font-weight: 500;
}

/* Testimonial Cards */
.testimonial-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-gray-100);
}

.testimonial-card__text {
  font-size: var(--fs-base);
  color: var(--color-gray-700);
  font-style: italic;
  line-height: 1.7;
  margin-bottom: var(--space-lg);
}

.testimonial-card__text::before {
  content: "\201C";
  font-size: var(--fs-2xl);
  color: var(--color-primary-light);
  line-height: 0;
  vertical-align: -0.3em;
  margin-right: 2px;
}

.testimonial-card__author {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.testimonial-card__avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(
    135deg,
    var(--color-primary-light),
    var(--color-secondary)
  );
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  font-weight: 700;
  font-size: var(--fs-md);
}

.testimonial-card__name {
  font-weight: 600;
  color: var(--color-gray-900);
  font-size: var(--fs-sm);
}

.testimonial-card__role {
  font-size: var(--fs-xs);
  color: var(--color-gray-500);
}

/* Pricing Cards */
.pricing-card {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  border: 2px solid var(--color-gray-200);
  text-align: center;
  transition: all var(--transition-base);
  position: relative;
}

.pricing-card:hover {
  border-color: var(--color-primary-light);
  box-shadow: var(--shadow-lg);
}

.pricing-card--featured {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-lg);
  transform: scale(1.05);
}

.pricing-card--featured::before {
  content: "Most Popular";
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-primary);
  color: var(--color-white);
  font-size: var(--fs-xs);
  font-weight: 600;
  padding: 0.25rem 1rem;
  border-radius: var(--radius-full);
}

.pricing-card__name {
  font-size: var(--fs-md);
  font-weight: 600;
  color: var(--color-gray-600);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-md);
}

.pricing-card__price {
  font-size: var(--fs-3xl);
  font-weight: 800;
  color: var(--color-gray-900);
  margin-bottom: var(--space-sm);
}

.pricing-card__price span {
  font-size: var(--fs-sm);
  font-weight: 400;
  color: var(--color-gray-500);
}

.pricing-card__features {
  text-align: left;
  margin: var(--space-xl) 0;
}

.pricing-card__feature {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  font-size: var(--fs-sm);
  color: var(--color-gray-700);
  padding: var(--space-sm) 0;
}

.pricing-card__feature::before {
  content: "\2713";
  color: var(--color-success);
  font-weight: 700;
  flex-shrink: 0;
}

/* FAQ */
.faq-item {
  border-bottom: 1px solid var(--color-gray-200);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: var(--space-lg) 0;
  font-size: var(--fs-md);
  font-weight: 600;
  color: var(--color-gray-800);
  text-align: left;
  cursor: pointer;
  transition: color var(--transition-fast);
}

.faq-question:hover {
  color: var(--color-primary);
}

.faq-question::after {
  content: "+";
  font-size: var(--fs-xl);
  font-weight: 300;
  color: var(--color-gray-500);
  transition: transform var(--transition-base);
  flex-shrink: 0;
  margin-left: var(--space-md);
}

.faq-item--open .faq-question::after {
  content: "\2212";
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow);
}

.faq-item--open .faq-answer {
  max-height: 300px;
}

.faq-answer p {
  padding-bottom: var(--space-lg);
  font-size: var(--fs-base);
  color: var(--color-gray-600);
  line-height: 1.7;
}

/* Step Cards */
.step-card {
  text-align: center;
  padding: var(--space-xl);
  position: relative;
}

.step-card__number {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-primary);
  color: var(--color-white);
  font-size: var(--fs-lg);
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-lg);
}

.step-card__title {
  font-size: var(--fs-lg);
  font-weight: 600;
  margin-bottom: var(--space-sm);
  color: var(--color-gray-900);
}

.step-card__text {
  font-size: var(--fs-sm);
  color: var(--color-gray-600);
}

/* Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
}

.modal--open {
  opacity: 1;
  visibility: visible;
}

.modal-content {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  width: 100%;
  max-width: 540px;
  max-height: 90vh;
  overflow-y: auto;
  transform: translateY(20px);
  transition: transform var(--transition-base);
  position: relative;
}

.modal--open .modal-content {
  transform: translateY(0);
}

.modal__close {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  font-size: var(--fs-xl);
  color: var(--color-gray-500);
  transition: all var(--transition-fast);
}

.modal__close:hover {
  background: var(--color-gray-100);
  color: var(--color-gray-800);
}

.modal__title {
  font-size: var(--fs-xl);
  font-weight: 700;
  margin-bottom: var(--space-xs);
}

.modal__subtitle {
  font-size: var(--fs-sm);
  color: var(--color-gray-500);
  margin-bottom: var(--space-xl);
}

/* Form Elements */
.form-group {
  margin-bottom: var(--space-lg);
}

.form-label {
  display: block;
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--color-gray-700);
  margin-bottom: var(--space-xs);
}

.form-label .required {
  color: var(--color-error);
  margin-left: 2px;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 0.7rem 0.9rem;
  border: 1.5px solid var(--color-gray-300);
  border-radius: var(--radius-md);
  font-size: var(--fs-sm);
  background: var(--color-white);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-input--error {
  border-color: var(--color-error);
}

.form-input--error:focus {
  box-shadow: 0 0 0 3px rgba(214, 48, 49, 0.1);
}

.form-textarea {
  resize: vertical;
  min-height: 80px;
}

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%23868e96' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  padding-right: 2.5rem;
}

.form-checkbox-wrapper {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
}

.form-checkbox {
  width: 18px;
  height: 18px;
  margin-top: 2px;
  accent-color: var(--color-primary);
  flex-shrink: 0;
}

.form-checkbox-label {
  font-size: var(--fs-xs);
  color: var(--color-gray-600);
  line-height: 1.5;
}

.form-error {
  font-size: var(--fs-xs);
  color: var(--color-error);
  margin-top: var(--space-xs);
  min-height: 1em;
}

/* Alerts */
.alert {
  padding: var(--space-md);
  border-radius: var(--radius-md);
  font-size: var(--fs-sm);
  display: none;
  margin-bottom: var(--space-md);
}

.alert--error {
  background: rgba(214, 48, 49, 0.08);
  color: var(--color-error);
  border: 1px solid rgba(214, 48, 49, 0.2);
}

.alert--success {
  background: rgba(0, 184, 148, 0.08);
  color: var(--color-success);
  border: 1px solid rgba(0, 184, 148, 0.2);
}

/* Badge */
.badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  font-size: var(--fs-xs);
  font-weight: 600;
  border-radius: var(--radius-full);
  background: rgba(37, 99, 235, 0.1);
  color: var(--color-primary);
}

@media (max-width: 768px) {
  .pricing-card--featured {
    transform: none;
  }

  .modal-content {
    padding: var(--space-xl);
    max-height: 95vh;
  }
}