/* ==========================================================================
   Section: Arshin (ФГИС Аршин)
   ========================================================================== */

.section-arshin {
  padding-block: var(--gap-3xl);
}

/* ---- Background ---- */

.section-arshin__bg {
  width: 100%;
  min-height: 531px;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  /* TODO: заменить на background-image когда будет реальный ассет arshin-bg.jpg */
}

/* ---- Inner Layout ---- */

.section-arshin__inner {
  display: flex;
  gap: clamp(var(--gap-xl), 8vw, 123px);
  max-width: var(--container-width);
  margin-inline: auto;
  padding: var(--gap-3xl) var(--container-padding);
}

/* ---- Left: Heading ---- */

.section-arshin__heading {
  flex-shrink: 0;
  width: clamp(300px, 42%, 647px);
}

.section-arshin__title {
  font-size: var(--fs-h2);
  font-weight: var(--fw-h2);
  line-height: var(--lh-h2);
  letter-spacing: var(--ls-h2);
  color: var(--color-white);
  text-transform: uppercase;
}

/* ---- Right: Content ---- */

.section-arshin__content {
  flex: 1;
  min-width: 0;
}

.section-arshin__subtitle {
  margin-bottom: var(--gap-md);
  font-size: var(--fs-h4);
  font-weight: var(--fw-h4);
  line-height: var(--lh-h4);
  letter-spacing: var(--ls-h4);
  color: var(--color-white);
  text-transform: uppercase;
}

.section-arshin__text {
  margin-bottom: var(--gap-xl);
}

.section-arshin__text p {
  margin-bottom: var(--gap-sm);
  font-size: var(--fs-body);
  font-weight: var(--fw-body);
  line-height: var(--lh-body);
  color: var(--color-white);
}

.section-arshin__text p:last-child {
  margin-bottom: 0;
}

/* ---- Accordion ---- */

.section-arshin__accordion {
  margin-top: var(--gap-xl);
}

.section-arshin__accordion-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--gap-md);
  width: 100%;
  padding: 12px 24px;
  font-family: var(--font-primary);
  font-size: var(--fs-body);
  font-weight: var(--fw-body-bold);
  line-height: var(--lh-body);
  color: var(--color-primary);
  text-align: left;
  cursor: pointer;
  background-color: var(--color-border);
  border: none;
  transition: background-color var(--duration-normal) var(--ease-default);
}

.section-arshin__accordion-btn:hover {
  background-color: var(--color-white);
}

.section-arshin__accordion-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  font-size: 20px;
  line-height: 1;
  transition: transform var(--duration-normal) var(--ease-default);
}

.section-arshin__accordion-btn[aria-expanded="true"] .section-arshin__accordion-icon {
  transform: rotate(45deg);
}

.section-arshin__accordion-body {
  padding: 12px 24px;
  background-color: var(--color-border);
}

.section-arshin__accordion-body[hidden] {
  display: none;
}

.section-arshin__accordion-body p {
  font-size: var(--fs-body);
  font-weight: var(--fw-body);
  line-height: var(--lh-body);
  color: var(--color-primary-dark);
}

/* When accordion is open — no visual change needed for borders */

/* ---- Tablet ---- */

@media (max-width: 1199px) {
  .section-arshin__inner {
    flex-direction: column;
    gap: var(--gap-xl);
  }

  .section-arshin__heading {
    width: 100%;
  }
}

/* ---- Mobile ---- */

@media (max-width: 767px) {
  .section-arshin {
    padding-block: var(--gap-xl);
  }

  .section-arshin__bg {
    min-height: auto;
  }

  .section-arshin__inner {
    flex-direction: column;
    gap: var(--gap-lg);
    padding: var(--gap-xl) var(--container-padding-mobile);
  }

  .section-arshin__heading {
    width: 100%;
  }

  .section-arshin__title {
    font-size: var(--fs-h3);
    line-height: var(--lh-h3);
    letter-spacing: var(--ls-h3);
  }

  .section-arshin__subtitle {
    font-size: 18px;
  }

  .section-arshin__accordion-btn {
    padding: var(--gap-sm) var(--gap-md);
    font-size: var(--fs-sm);
  }

  .section-arshin__accordion-body {
    padding: var(--gap-sm) var(--gap-md);
  }
}