/* ==========================================================================
   About page — inner page sections (prefix ab-)
   ========================================================================== */

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

/* Shared section head */
.ab-label {
  display: block;
  margin-bottom: clamp(12px, calc(31 / var(--design-width) * 100vw), 31px);
  font-family: var(--font-montserrat);
  font-weight: 400;
  font-size: clamp(12px, calc(16 / var(--design-width) * 100vw), 16px);
  line-height: 1;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--color-gray);
}

.ab-title {
  font-family: var(--font-montserrat);
  font-weight: 400;
  font-size: clamp(28px, calc(55 / var(--design-width) * 100vw), 55px);
  line-height: clamp(32px, calc(57 / var(--design-width) * 100vw), 57px);
  color: var(--color-dark);
}

.ab-desc {
  font-family: var(--font-inter);
  font-weight: 400;
  font-size: clamp(14px, calc(16 / var(--design-width) * 100vw), 16px);
  line-height: clamp(22px, calc(26 / var(--design-width) * 100vw), 26px);
  color: var(--color-dark);
  opacity: 0.6;
}

.ab-section {
  width: 100%;
  margin-top: var(--section-gap);
  padding-bottom: var(--section-end);
  box-sizing: border-box;
}

.ab-hero + .ab-section {
  margin-top: var(--section-gap-first);
}

.ab-section__inner {
  padding-inline: var(--container-pad);
  box-sizing: border-box;
}

/* Slider footer — same pattern as reviews */
.ab-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: clamp(24px, calc(40 / var(--design-width) * 100vw), 40px);
}

.ab-pagination.swiper-pagination {
  position: static;
  width: auto;
  display: flex;
  align-items: center;
  gap: clamp(6px, calc(10 / var(--design-width) * 100vw), 10px);
}

.ab-pagination .swiper-pagination-bullet {
  width: clamp(8px, calc(10 / var(--design-width) * 100vw), 10px);
  height: clamp(8px, calc(10 / var(--design-width) * 100vw), 10px);
  margin: 0;
  border-radius: 50%;
  background-color: var(--color-gray-muted);
  opacity: 1;
  transition: width 0.25s ease, background-color 0.25s ease;
}

.ab-pagination .swiper-pagination-bullet-active {
  width: clamp(28px, calc(40 / var(--design-width) * 100vw), 40px);
  border-radius: 999px;
  background-color: var(--color-blue);
}

.ab-nav {
  display: flex;
  align-items: center;
  gap: clamp(12px, calc(16.74 / var(--design-width) * 100vw), 16.74px);
}

.ab-nav-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: clamp(44px, calc(50 / var(--design-width) * 100vw), 50px);
  height: clamp(44px, calc(50 / var(--design-width) * 100vw), 50px);
  padding: 0;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.ab-nav-btn svg {
  width: 100%;
  height: 100%;
}

.ab-nav-btn circle {
  fill: transparent;
  stroke: #f2f2f2;
  transition: fill 0.2s ease, stroke 0.2s ease;
}

.ab-nav-btn path {
  stroke: var(--color-dark);
  transition: stroke 0.2s ease;
}

.ab-nav-btn:hover:not(:disabled) circle {
  fill: var(--color-blue);
  stroke: var(--color-blue);
}

.ab-nav-btn:hover:not(:disabled) path {
  stroke: var(--color-white);
}

.ab-nav-btn:hover:not(:disabled) {
  transform: scale(1.05);
}

.ab-nav-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  transform: none;
}

/* ==========================================================================
   Hero — compact inner page
   ========================================================================== */
.ab-hero {
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
}

.ab-hero__shell {
  width: 100%;
  border-radius: var(--hero-radius-outer);
  padding: var(--hero-stroke);
  background-color: var(--color-white);
  box-sizing: border-box;
  overflow: hidden;
}

.ab-hero__frame {
  position: relative;
  overflow: hidden;
  border-radius: var(--hero-radius-inner);
  min-height: clamp(480px, calc(620 / var(--design-width) * 100vw), 620px);
  background-color: var(--color-bg-page);
  isolation: isolate;
}

.ab-hero__media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.ab-hero__media-image {
  width: 100%;
  height: 100%;
  object-fit: none;
  object-position: center center;
}

.ab-hero__media-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    90deg,
    rgba(255, 255, 255, 0.88) 0%,
    rgba(255, 255, 255, 0.55) 38%,
    rgba(255, 255, 255, 0.12) 100%
  );
  pointer-events: none;
}

.ab-hero__content {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: var(--grid-title-col) var(--grid-stats-col);
  align-items: end;
  gap: var(--layout-gap);
  padding: clamp(168px, calc(235 / var(--design-width) * 100vw), 235px)
    var(--container-pad) clamp(48px, calc(80 / var(--design-width) * 100vw), 80px);
  box-sizing: border-box;
}

.ab-hero__breadcrumbs {
  position: absolute;
  z-index: 3;
  top: calc(
    clamp(12px, calc(24 / var(--design-width) * 100vw), 24px) + var(--header-height) +
      clamp(10px, calc(16 / var(--design-width) * 100vw), 16px)
  );
  left: var(--container-pad);
  right: var(--container-pad);
  width: auto;
  margin: 0;
}

.ab-hero__head {
  grid-column: 1;
  min-width: 0;
}

.ab-hero__content--compact {
  grid-template-columns: 1fr;
  padding-bottom: clamp(40px, calc(60 / var(--design-width) * 100vw), 60px);
}

.ab-hero__content--compact .ab-hero__stats {
  display: none;
}

.ab-hero__title {
  max-width: clamp(280px, calc(700 / var(--design-width) * 100vw), 700px);
}

.ab-hero__lead {
  max-width: clamp(280px, calc(560 / var(--design-width) * 100vw), 560px);
  margin-top: clamp(20px, calc(35 / var(--design-width) * 100vw), 35px);
}

.ab-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(12px, calc(16 / var(--design-width) * 100vw), 16px);
  margin-top: clamp(28px, calc(40 / var(--design-width) * 100vw), 40px);
}

.ab-hero__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: clamp(14px, calc(20 / var(--design-width) * 100vw), 20px);
  padding: clamp(14px, calc(20 / var(--design-width) * 100vw), 20px)
    clamp(20px, calc(30 / var(--design-width) * 100vw), 30px);
  border-radius: var(--btn-radius);
  font-family: var(--font-inter);
  font-size: var(--fs-btn);
  line-height: 1;
  white-space: nowrap;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.ab-hero__btn:hover {
  opacity: 0.88;
  transform: translateY(-1px);
}

.ab-hero__btn--primary {
  background-color: var(--color-blue);
  color: var(--color-white);
}

.ab-hero__btn--ghost {
  background-color: var(--color-white);
  color: var(--color-dark);
}

.ab-hero__btn-icon {
  width: clamp(11px, calc(13 / var(--design-width) * 100vw), 13px);
  height: auto;
  filter: brightness(0) invert(1);
}

.ab-hero__btn--ghost .ab-hero__btn-icon {
  filter: none;
}

.ab-hero__btn-icon--play {
  width: clamp(14px, calc(16 / var(--design-width) * 100vw), 16px);
  height: clamp(14px, calc(16 / var(--design-width) * 100vw), 16px);
}

.ab-hero__chief {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: clamp(16px, calc(24 / var(--design-width) * 100vw), 24px);
  max-width: clamp(280px, calc(520 / var(--design-width) * 100vw), 520px);
  margin-top: clamp(24px, calc(32 / var(--design-width) * 100vw), 32px);
  padding-top: clamp(20px, calc(28 / var(--design-width) * 100vw), 28px);
  border-top: 1px solid rgba(16, 32, 43, 0.08);
}

.ab-hero__chief-person {
  display: flex;
  align-items: center;
  gap: clamp(12px, calc(16 / var(--design-width) * 100vw), 16px);
  min-width: 0;
}

.ab-hero__chief-avatar {
  flex-shrink: 0;
  width: clamp(48px, calc(56 / var(--design-width) * 100vw), 56px);
  height: clamp(48px, calc(56 / var(--design-width) * 100vw), 56px);
  border: 2px solid var(--color-white);
  border-radius: 50%;
  object-fit: cover;
  box-shadow: 0 4px 16px rgba(16, 32, 43, 0.08);
}

.ab-hero__chief-meta {
  min-width: 0;
}

.ab-hero__chief-name {
  font-family: var(--font-montserrat);
  font-weight: 500;
  font-size: clamp(14px, calc(16 / var(--design-width) * 100vw), 16px);
  line-height: 1.25;
  color: var(--color-dark);
}

.ab-hero__chief-role {
  margin-top: clamp(4px, calc(6 / var(--design-width) * 100vw), 6px);
  font-family: var(--font-inter);
  font-weight: 400;
  font-size: clamp(13px, calc(14 / var(--design-width) * 100vw), 14px);
  line-height: 1.2;
  color: var(--color-gray);
}

.ab-hero__signature {
  flex-shrink: 0;
  width: clamp(110px, calc(180 / var(--design-width) * 100vw), 180px);
  height: auto;
  object-fit: contain;
}

.ab-hero__stats {
  grid-column: 2;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: clamp(16px, calc(40 / var(--design-width) * 100vw), 40px);
  width: 100%;
  max-width: clamp(280px, calc(716 / var(--design-width) * 100vw), 716px);
  margin: 0;
}

.ab-hero__stat {
  display: flex;
  flex-direction: column;
  gap: clamp(8px, calc(14 / var(--design-width) * 100vw), 14px);
  min-width: 0;
}

.ab-hero__stat-value {
  margin: 0;
  font-family: var(--font-montserrat);
  font-weight: 400;
  font-size: clamp(32px, calc(50 / var(--design-width) * 100vw), 50px);
  line-height: 1.04;
  color: var(--color-dark);
}

.ab-hero__stat-label {
  margin: 0;
  font-family: var(--font-inter);
  font-weight: 400;
  font-size: clamp(14px, calc(18 / var(--design-width) * 100vw), 18px);
  line-height: 1.2;
  color: var(--color-dark);
}

/* ==========================================================================
   Mission — text + gallery slider
   ========================================================================== */
.ab-mission__layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(28px, calc(56 / var(--design-width) * 100vw), 56px);
  align-items: center;
}

.ab-mission__content {
  min-width: 0;
  max-width: clamp(300px, calc(640 / var(--design-width) * 100vw), 640px);
}

.ab-mission__text {
  margin-top: clamp(24px, calc(40 / var(--design-width) * 100vw), 40px);
}

.ab-mission__text p + p {
  margin-top: clamp(16px, calc(24 / var(--design-width) * 100vw), 24px);
}

.ab-mission__gallery {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: clamp(16px, calc(24 / var(--design-width) * 100vw), 24px);
}

.ab-mission__slider {
  width: 100%;
  overflow: hidden;
  border-radius: clamp(16px, calc(30 / var(--design-width) * 100vw), 30px);
}

.ab-mission__slide.swiper-slide {
  width: 100%;
  height: auto;
  aspect-ratio: 680 / 480;
  margin: 0;
  overflow: hidden;
  border-radius: clamp(16px, calc(30 / var(--design-width) * 100vw), 30px);
  border: 1px solid var(--color-blue-light);
  box-sizing: border-box;
}

.ab-mission__image {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.ab-mission__footer {
  margin-top: 0;
}

/* ==========================================================================
   Values — 3 pillars in blue panel (full-width shell like hero)
   ========================================================================== */
.ab-values {
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
}

.ab-values__panel {
  width: 100%;
  max-width: 100%;
  border-radius: var(--hero-radius-outer);
  padding: var(--hero-stroke);
  background-color: var(--color-white);
  box-sizing: border-box;
}

.ab-values__panel-inner {
  padding: clamp(28px, calc(60 / var(--design-width) * 100vw), 60px)
    var(--container-pad);
  background-color: var(--color-blue-light);
  border-radius: var(--hero-radius-inner);
  box-sizing: border-box;
}

.ab-values__head {
  max-width: clamp(280px, calc(700 / var(--design-width) * 100vw), 700px);
  margin-bottom: var(--section-head-gap);
}

.ab-values__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(16px, calc(24 / var(--design-width) * 100vw), 24px);
}

.ab-values__card {
  display: flex;
  flex-direction: column;
  gap: clamp(16px, calc(24 / var(--design-width) * 100vw), 24px);
  min-height: clamp(200px, calc(260 / var(--design-width) * 100vw), 260px);
  padding: clamp(24px, calc(35 / var(--design-width) * 100vw), 35px);
  border-radius: clamp(16px, calc(30 / var(--design-width) * 100vw), 30px);
  background-color: var(--color-white);
  box-sizing: border-box;
}

.ab-values__card-num {
  font-family: var(--font-montserrat);
  font-weight: 400;
  font-size: clamp(28px, calc(40 / var(--design-width) * 100vw), 40px);
  line-height: 1;
  color: var(--color-blue);
}

.ab-values__card-title {
  font-family: var(--font-montserrat);
  font-weight: 500;
  font-size: clamp(18px, calc(26 / var(--design-width) * 100vw), 26px);
  line-height: 1.2;
  color: var(--color-dark);
}

.ab-values__card-text {
  font-family: var(--font-inter);
  font-size: clamp(14px, calc(16 / var(--design-width) * 100vw), 16px);
  line-height: clamp(22px, calc(26 / var(--design-width) * 100vw), 26px);
  color: var(--color-dark);
  opacity: 0.6;
}

/* ==========================================================================
   Reasons — numbered grid
   ========================================================================== */
.ab-reasons__layout {
  display: grid;
  grid-template-columns: minmax(0, calc(494 / 1810 * 100%)) minmax(0, 1fr);
  gap: var(--layout-gap);
  align-items: start;
}

.ab-reasons__intro {
  min-width: 0;
}

.ab-reasons__intro .ab-desc {
  margin-top: clamp(24px, calc(40 / var(--design-width) * 100vw), 40px);
}

.ab-reasons__list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(16px, calc(24 / var(--design-width) * 100vw), 24px);
  min-width: 0;
}

.ab-reasons__item {
  display: flex;
  align-items: flex-start;
  gap: clamp(14px, calc(20 / var(--design-width) * 100vw), 20px);
  padding: clamp(20px, calc(28 / var(--design-width) * 100vw), 28px);
  border: 1px solid var(--color-blue-light);
  border-radius: clamp(16px, calc(24 / var(--design-width) * 100vw), 24px);
  background-color: var(--color-white);
  box-sizing: border-box;
}

.ab-reasons__num {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: clamp(40px, calc(50 / var(--design-width) * 100vw), 50px);
  height: clamp(40px, calc(50 / var(--design-width) * 100vw), 50px);
  border-radius: 50%;
  background-color: var(--color-blue-light);
  font-family: var(--font-montserrat);
  font-weight: 500;
  font-size: clamp(14px, calc(18 / var(--design-width) * 100vw), 18px);
  line-height: 1;
  color: var(--color-dark);
}

.ab-reasons__item-title {
  font-family: var(--font-montserrat);
  font-weight: 500;
  font-size: clamp(16px, calc(20 / var(--design-width) * 100vw), 20px);
  line-height: 1.25;
  color: var(--color-dark);
}

.ab-reasons__item-text {
  margin-top: clamp(8px, calc(10 / var(--design-width) * 100vw), 10px);
  font-family: var(--font-inter);
  font-size: clamp(13px, calc(14 / var(--design-width) * 100vw), 14px);
  line-height: clamp(20px, calc(23 / var(--design-width) * 100vw), 23px);
  color: var(--color-dark);
  opacity: 0.6;
}

/* ==========================================================================
   History — vertical timeline
   ========================================================================== */
.ab-history__head {
  max-width: clamp(280px, calc(700 / var(--design-width) * 100vw), 700px);
  margin-bottom: var(--section-head-gap);
}

.ab-history__track {
  position: relative;
  display: grid;
  gap: clamp(24px, calc(40 / var(--design-width) * 100vw), 40px);
  padding-left: clamp(28px, calc(40 / var(--design-width) * 100vw), 40px);
}

.ab-history__track::before {
  content: "";
  position: absolute;
  top: 8px;
  bottom: 8px;
  left: clamp(6px, calc(9 / var(--design-width) * 100vw), 9px);
  width: 2px;
  background: linear-gradient(
    180deg,
    var(--color-blue) 0%,
    var(--color-blue-light) 100%
  );
}

.ab-history__item {
  position: relative;
  display: grid;
  grid-template-columns: clamp(80px, calc(120 / var(--design-width) * 100vw), 120px) minmax(0, 1fr);
  gap: clamp(16px, calc(32 / var(--design-width) * 100vw), 32px);
  align-items: start;
}

.ab-history__item::before {
  content: "";
  position: absolute;
  top: 10px;
  left: calc(-1 * clamp(28px, calc(40 / var(--design-width) * 100vw), 40px) + clamp(4px, calc(6 / var(--design-width) * 100vw), 6px));
  width: clamp(12px, calc(16 / var(--design-width) * 100vw), 16px);
  height: clamp(12px, calc(16 / var(--design-width) * 100vw), 16px);
  border-radius: 50%;
  background-color: var(--color-blue);
  box-shadow: 0 0 0 clamp(4px, calc(6 / var(--design-width) * 100vw), 6px) var(--color-blue-light);
}

.ab-history__year {
  font-family: var(--font-montserrat);
  font-weight: 500;
  font-size: clamp(20px, calc(30 / var(--design-width) * 100vw), 30px);
  line-height: 1.1;
  color: var(--color-blue);
}

.ab-history__card {
  padding: clamp(20px, calc(28 / var(--design-width) * 100vw), 28px);
  border: 1px solid var(--color-blue-light);
  border-radius: clamp(16px, calc(24 / var(--design-width) * 100vw), 24px);
  background-color: var(--color-white);
}

.ab-history__card-title {
  font-family: var(--font-montserrat);
  font-weight: 500;
  font-size: clamp(16px, calc(22 / var(--design-width) * 100vw), 22px);
  line-height: 1.25;
  color: var(--color-dark);
}

.ab-history__card-text {
  margin-top: clamp(10px, calc(14 / var(--design-width) * 100vw), 14px);
  font-family: var(--font-inter);
  font-size: clamp(14px, calc(16 / var(--design-width) * 100vw), 16px);
  line-height: clamp(22px, calc(26 / var(--design-width) * 100vw), 26px);
  color: var(--color-dark);
  opacity: 0.6;
}

/* ==========================================================================
   Documents — certificates slider
   ========================================================================== */
.ab-docs__layout {
  display: grid;
  grid-template-columns: minmax(0, calc(494 / 1810 * 100%)) minmax(0, 1fr);
  gap: var(--layout-gap);
  align-items: start;
}

.ab-docs__intro {
  min-width: 0;
}

.ab-docs__intro .ab-desc {
  margin-top: clamp(24px, calc(40 / var(--design-width) * 100vw), 40px);
}

.ab-docs__slider-wrap {
  min-width: 0;
  overflow: hidden;
}

.ab-docs__slider {
  overflow: visible;
}

.ab-docs__slide.swiper-slide {
  width: clamp(200px, calc(280 / var(--design-width) * 100vw), 280px);
  height: auto;
}

.ab-docs__card {
  display: flex;
  flex-direction: column;
  gap: clamp(12px, calc(16 / var(--design-width) * 100vw), 16px);
  height: 100%;
}

.ab-docs__preview {
  flex-shrink: 0;
  width: 100%;
  height: clamp(240px, calc(360 / var(--design-width) * 100vw), 360px);
  padding: clamp(12px, calc(16 / var(--design-width) * 100vw), 16px);
  border: 1px solid var(--color-blue-light);
  border-radius: clamp(12px, calc(20 / var(--design-width) * 100vw), 20px);
  background-color: var(--color-white);
  box-sizing: border-box;
  overflow: hidden;
}

.ab-docs__image {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  object-position: center center;
}

.ab-docs__name {
  font-family: var(--font-inter);
  font-size: clamp(13px, calc(14 / var(--design-width) * 100vw), 14px);
  line-height: 1.35;
  color: var(--color-dark);
  opacity: 0.8;
}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 1200px) {
  .ab-hero__content {
    grid-template-columns: 1fr;
    align-items: start;
  }

  .ab-hero__head {
    grid-column: 1;
  }

  .ab-hero__stats {
    grid-column: 1;
    max-width: 100%;
  }

  .ab-mission__layout,
  .ab-reasons__layout,
  .ab-docs__layout {
    grid-template-columns: 1fr;
  }

  .ab-values__grid {
    grid-template-columns: 1fr;
  }

  .ab-reasons__list {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 991px) {
  .ab-mission__gallery {
    margin-top: clamp(24px, calc(40 / var(--design-width) * 100vw), 40px);
  }

  .ab-history__item {
    grid-template-columns: 1fr;
    gap: 12px;
  }
}

@media (max-width: 767px) {
  .ab-hero__frame {
    min-height: auto;
  }

  .ab-hero__content {
    padding-top: clamp(146px, calc(207 / var(--design-width) * 100vw), 207px);
  }

  .ab-hero__stats {
    flex-wrap: wrap;
    justify-content: flex-start;
  }

  .ab-hero__chief {
    flex-direction: column;
    align-items: flex-start;
    max-width: 100%;
  }

  .ab-hero__signature {
    align-self: flex-end;
  }

  .ab-footer {
    flex-direction: column;
    align-items: flex-start;
  }

  .ab-nav {
    align-self: flex-end;
  }
}