/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border-radius: var(--radius);
  transition: background-color var(--transition), color var(--transition), transform var(--transition);
}

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

.btn--dark:hover {
  background-color: #333;
  transform: translateY(-2px);
}

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

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

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

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

/* Accordion */
.accordion {
  border-top: 1px solid var(--color-gray);
}

.accordion__item {
  border-bottom: 1px solid var(--color-gray);
}

.accordion__trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.25rem 0;
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 500;
  text-align: left;
  color: var(--color-dark);
  transition: color var(--transition);
}

.accordion__trigger:hover {
  color: var(--color-accent);
}

.accordion__icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  position: relative;
  transition: transform var(--transition);
}

.accordion__icon::before,
.accordion__icon::after {
  content: '';
  position: absolute;
  background-color: currentColor;
  transition: transform var(--transition);
}

.accordion__icon::before {
  width: 14px;
  height: 2px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.accordion__icon::after {
  width: 2px;
  height: 14px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.accordion__item.is-open .accordion__icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
  opacity: 0;
}

.accordion__panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}

.accordion__item.is-open .accordion__panel {
  max-height: 500px;
}

.accordion__content {
  padding-bottom: 1.25rem;
  color: var(--color-text-light);
  line-height: 1.7;
}

/* Forms */
.form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.form__group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form__label {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-dark);
}

.form__input,
.form__select,
.form__textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  border: 1px solid var(--color-gray);
  border-radius: var(--radius);
  background-color: var(--color-white);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form__input:focus,
.form__select:focus,
.form__textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(95, 183, 185, 0.2);
}

.form__input.is-error,
.form__select.is-error,
.form__textarea.is-error {
  border-color: #e74c3c;
}

.form__error {
  font-size: 0.8rem;
  color: #e74c3c;
  display: none;
}

.form__group.has-error .form__error {
  display: block;
}

.form__textarea {
  min-height: 140px;
  resize: vertical;
}

.form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

@media (max-width: 767px) {
  .form__row {
    grid-template-columns: 1fr;
  }
}

/* Stats */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  text-align: center;
}

.stat__number {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.stat__label {
  font-size: 0.9rem;
  color: var(--color-text-light);
}

@media (max-width: 767px) {
  .stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }
}

/* Service icons row */
.icon-features {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  text-align: center;
}

.icon-feature__icon {
  width: 48px;
  height: 48px;
  margin: 0 auto 1rem;
  color: var(--color-accent);
}

.icon-feature__title {
  font-size: 1rem;
  margin-bottom: 0.5rem;
}

.icon-feature__text {
  font-size: 0.875rem;
  color: var(--color-text-light);
}

@media (max-width: 767px) {
  .icon-features {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Breadcrumb */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--color-text-light);
  margin-bottom: 1.5rem;
}

.breadcrumb a:hover {
  color: var(--color-accent);
}

.breadcrumb__sep::before {
  content: '/';
  margin-right: 0.5rem;
}

/* Page headline */
.page-hero {
  position: relative;
  padding: calc(var(--header-height) + 4rem) 0 4rem;
  background-color: var(--color-gray-light);
  text-align: center;
}

.page-hero--dark {
  background-color: var(--color-dark);
  color: var(--color-white);
}

.page-hero--dark h1,
.page-hero--dark .section__label {
  color: var(--color-white);
}

.page-hero--dark .section__label {
  color: var(--color-accent);
}

/* Back to top */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: var(--color-accent);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: opacity var(--transition), visibility var(--transition), transform var(--transition), background-color var(--transition);
  z-index: var(--z-back-top);
  box-shadow: var(--shadow);
}

.back-to-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background-color: var(--color-accent-dark);
}

.back-to-top svg {
  width: 20px;
  height: 20px;
}