.page-about {
  --about-border-w: 3px;
  --about-card-shadow: 4px 4px 0 rgba(57, 255, 20, 0.14);
  --about-card-shadow-hover: 8px 8px 0 rgba(57, 255, 20, 0.26);
}

.page-about .about-breadcrumb {
  margin-bottom: 28px;
}

/* ========== HERO ========== */
.page-about .about-hero {
  position: relative;
  background: var(--c-bg-void);
  padding: 30px 0 52px;
  border-bottom: var(--about-border-w) solid var(--c-line);
  overflow: hidden;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(35, 53, 84, 0.16) 1px, transparent 1px),
    linear-gradient(90deg, rgba(35, 53, 84, 0.16) 1px, transparent 1px);
  background-size: 46px 46px;
  -webkit-mask-image: linear-gradient(135deg, rgba(0, 0, 0, 0.8), transparent 80%);
  mask-image: linear-gradient(135deg, rgba(0, 0, 0, 0.8), transparent 80%);
  pointer-events: none;
}

.page-about .about-hero__layout {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 28px;
}

.page-about .about-hero__main {
  min-width: 0;
}

.page-about .about-hero__title {
  margin: 14px 0 20px;
  font-family: var(--font-display);
  font-size: clamp(2.3rem, 9vw, 4.6rem);
  line-height: 1.04;
  letter-spacing: 0.01em;
  font-weight: 900;
  color: var(--c-text);
}

.page-about .about-hero__title-main {
  display: block;
}

.page-about .about-hero__title-sep {
  display: inline-block;
  color: var(--c-neon);
  transform: skewX(-16deg);
  margin: 0 0.08em;
}

.page-about .about-hero__title-sub {
  display: block;
  font-family: var(--font-body);
  font-size: clamp(1.05rem, 2.8vw, 1.7rem);
  line-height: 1.35;
  letter-spacing: 0.06em;
  font-weight: 700;
  color: var(--c-text);
}

.page-about .about-hero__lead {
  max-width: 44em;
  margin: 0;
  border-left: 3px solid var(--c-lava);
  padding-left: 18px;
  color: var(--c-text-sub);
  line-height: 1.8;
  font-size: 1rem;
}

.page-about .about-hero__side {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.page-about .about-hero__stamp {
  position: relative;
  border: var(--about-border-w) solid var(--c-line);
  background: linear-gradient(135deg, rgba(57, 255, 20, 0.06) 0%, transparent 60%), var(--c-bg-card);
  box-shadow: var(--shadow-card);
  padding: 16px 18px 18px;
}

.page-about .about-hero__stamp::before {
  content: "";
  position: absolute;
  left: -3px;
  top: -3px;
  width: 42px;
  height: 42px;
  background: var(--c-neon);
  clip-path: polygon(0 0, 100% 0, 0 100%);
  opacity: 0.85;
}

.page-about .about-hero__year {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(3.2rem, 12vw, 5.2rem);
  line-height: 1;
  color: var(--c-text);
}

.page-about .about-hero__stamp-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 12px 0 14px;
  color: var(--c-neon);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.page-about .about-hero__stamp-text {
  margin: 0;
  color: var(--c-text-sub);
  line-height: 1.7;
  font-size: 0.95rem;
}

.page-about .about-hero__index {
  border: var(--about-border-w) solid var(--c-line);
  background: var(--c-bg-card);
  box-shadow: var(--shadow-card);
  padding: 14px 16px;
}

.page-about .about-hero__index-label {
  display: block;
  margin-bottom: 8px;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--c-text-sub);
}

.page-about .about-hero__index-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about .about-hero__index-list li {
  border-top: 1px solid var(--c-line);
}

.page-about .about-hero__index-list a {
  display: block;
  padding: 10px 4px;
  color: var(--c-text);
  text-decoration: none;
  font-size: 14px;
  transition: color 0.2s ease, padding-left 0.2s ease;
}

.page-about .about-hero__index-list a:hover {
  color: var(--c-neon);
  padding-left: 12px;
}

.page-about .about-hero__corner {
  display: none;
}

/* ========== ORIGIN ========== */
.page-about .about-origin {
  position: relative;
  background: var(--c-bg-main);
  padding: 64px 0 56px;
  border-bottom: var(--about-border-w) solid var(--c-line);
  overflow: hidden;
}

.page-about .about-origin::after {
  content: "01";
  position: absolute;
  right: 18px;
  top: 18px;
  font-family: var(--font-display);
  font-size: clamp(4rem, 12vw, 8rem);
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1px rgba(35, 53, 84, 0.9);
  opacity: 0.55;
  pointer-events: none;
  z-index: 0;
}

.page-about .about-origin__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 28px;
}

.page-about .about-origin__content {
  min-width: 0;
}

.page-about .about-origin__content h2 {
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 5vw, 3rem);
  line-height: 1.12;
  margin: 8px 0 16px;
  color: var(--c-text);
}

.page-about .about-origin__body {
  color: var(--c-text-sub);
  line-height: 1.8;
  margin: 0 0 16px;
  max-width: 56em;
}

.page-about .about-origin__figure {
  position: relative;
  margin: 0;
  border: var(--about-border-w) solid var(--c-line);
  background: var(--c-bg-card);
  box-shadow: var(--shadow-card);
  padding: 8px;
}

.page-about .about-origin__figure img {
  display: block;
  width: 100%;
  height: auto;
}

.page-about .about-origin__figure::after {
  content: "";
  position: absolute;
  inset: 8px;
  pointer-events: none;
  background: repeating-linear-gradient(135deg, transparent 0 12px, rgba(57, 255, 20, 0.08) 12px 14px);
}

.page-about .about-origin__figure figcaption {
  padding: 10px 2px 2px;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--c-text-sub);
  text-transform: uppercase;
}

.page-about .about-origin__stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-top: 40px;
}

.page-about .about-stat {
  border: var(--about-border-w) solid var(--c-line);
  background: var(--c-bg-card);
  box-shadow: var(--shadow-card);
  padding: 16px;
}

.page-about .about-stat .display-num {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 6vw, 3rem);
  line-height: 1;
  color: var(--c-neon);
}

.page-about .about-stat .display-num span {
  color: var(--c-text);
  font-size: 0.7em;
}

.page-about .about-stat__label {
  display: block;
  margin-top: 8px;
  color: var(--c-text-sub);
  font-size: 13px;
  line-height: 1.5;
}

/* ========== MILESTONES ========== */
.page-about .about-milestones {
  background: var(--c-bg-void);
  padding: 64px 0 56px;
  border-bottom: var(--about-border-w) solid var(--c-line);
}

.page-about .about-milestones__head {
  max-width: 720px;
  margin-bottom: 44px;
}

.page-about .about-milestones__head h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 6vw, 3.4rem);
  line-height: 1.05;
  margin: 8px 0 16px;
  color: var(--c-text);
}

.page-about .about-milestones__intro {
  color: var(--c-text-sub);
  line-height: 1.75;
}

.page-about .about-timeline {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about .about-timeline__item {
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 16px;
}

.page-about .about-timeline__rail {
  display: grid;
  grid-template-rows: auto auto 1fr;
  justify-items: center;
  gap: 14px;
}

.page-about .about-timeline__season {
  display: block;
  width: 100%;
  text-align: center;
  background: var(--c-bg-card);
  border: 2px solid var(--c-line);
  box-shadow: 3px 3px 0 rgba(57, 255, 20, 0.12);
  font-family: var(--font-display);
  font-size: 1.1rem;
  line-height: 1.2;
  color: var(--c-text);
  padding: 8px 2px;
  letter-spacing: 0.04em;
}

.page-about .about-timeline__node {
  display: block;
  width: 16px;
  height: 16px;
  background: var(--c-neon);
  outline: 2px solid var(--c-neon);
  box-shadow: 0 0 12px rgba(57, 255, 20, 0.5);
  transform: rotate(45deg);
}

.page-about .about-timeline__line {
  display: block;
  width: 2px;
  background: linear-gradient(to bottom, var(--c-neon) 0%, var(--c-line) 70%);
}

.page-about .about-timeline__content {
  padding-bottom: 40px;
}

.page-about .about-timeline__content h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 1.3rem;
  line-height: 1.3;
  color: var(--c-text);
  letter-spacing: 0.02em;
}

.page-about .about-timeline__content p {
  color: var(--c-text-sub);
  line-height: 1.75;
  max-width: 56em;
}

.page-about .about-timeline__item:last-child .about-timeline__line {
  display: none;
}

.page-about .about-timeline__figure {
  max-width: 720px;
  margin: 12px 0 0;
  border: var(--about-border-w) solid var(--c-line);
  background: var(--c-bg-card);
  box-shadow: var(--shadow-card);
  padding: 8px;
}

.page-about .about-timeline__figure img {
  display: block;
  width: 100%;
  height: auto;
}

/* ========== TEAM ========== */
.page-about .about-team {
  background: var(--c-bg-main);
  padding: 64px 0;
  border-top: var(--about-border-w) solid var(--c-line);
}

.page-about .about-team__header {
  max-width: 760px;
  margin-bottom: 32px;
}

.page-about .about-team__header h2 {
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 5vw, 3rem);
  line-height: 1.12;
  margin: 8px 0 16px;
  color: var(--c-text);
}

.page-about .about-team__intro {
  color: var(--c-text-sub);
  line-height: 1.75;
}

.page-about .about-team__cards {
  display: grid;
  gap: 16px;
}

.page-about .about-team__card {
  border: var(--about-border-w) solid var(--c-line);
  background: var(--c-bg-card);
  box-shadow: var(--shadow-card);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.page-about .about-team__card[open] {
  border-color: var(--c-neon);
  box-shadow: var(--shadow-card-hover);
}

.page-about .about-team__heading {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
  cursor: pointer;
  padding: 16px 18px;
  font-family: var(--font-display);
  font-size: 1.2rem;
  letter-spacing: 0.02em;
  color: var(--c-text);
}

.page-about .about-team__heading::marker,
.page-about .about-team__heading::-webkit-details-marker {
  display: none;
}

.page-about .about-team__heading-text {
  flex: 1;
  min-width: 0;
}

.page-about .about-team__arrow {
  position: relative;
  flex: 0 0 18px;
  width: 18px;
  height: 18px;
}

.page-about .about-team__arrow::before,
.page-about .about-team__arrow::after {
  content: "";
  position: absolute;
  background: var(--c-neon);
  transition: transform 0.2s ease;
}

.page-about .about-team__arrow::before {
  left: 8px;
  top: 0;
  width: 2px;
  height: 100%;
}

.page-about .about-team__arrow::after {
  top: 8px;
  left: 0;
  width: 100%;
  height: 2px;
}

.page-about .about-team__card[open] .about-team__arrow::before {
  transform: scaleY(0);
}

.page-about .about-team__body {
  padding: 0 18px 18px;
  color: var(--c-text-sub);
  line-height: 1.75;
}

/* ========== REGION ========== */
.page-about .about-region {
  position: relative;
  background: var(--c-bg-void);
  border-top: var(--about-border-w) solid var(--c-line);
  padding: 64px 0 56px;
  overflow: hidden;
}

.page-about .about-region::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 6px;
  background: repeating-linear-gradient(90deg, var(--c-neon) 0 24px, var(--c-lava) 24px 48px, var(--c-line) 48px 72px);
  opacity: 0.35;
}

.page-about .about-region__grid {
  display: grid;
  gap: 32px;
}

.page-about .about-region__content {
  position: relative;
}

.page-about .about-region__content h2 {
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 5vw, 3rem);
  line-height: 1.12;
  margin: 8px 0 16px;
  color: var(--c-text);
}

.page-about .about-region__coords {
  margin: 16px 0 4px;
  font-family: var(--font-display);
  letter-spacing: 0.14em;
  color: rgba(57, 255, 20, 0.58);
  font-size: 14px;
}

.page-about .about-region__body {
  color: var(--c-text-sub);
  line-height: 1.8;
  margin-bottom: 20px;
  max-width: 46em;
}

.page-about .about-region__facts {
  list-style: none;
  margin: 0 0 24px;
  padding: 0;
  border-top: 2px solid var(--c-line);
}

.page-about .about-region__facts li {
  display: flex;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 2px solid var(--c-line);
  color: var(--c-text-sub);
  font-size: 0.95rem;
  line-height: 1.6;
}

.page-about .about-region__facts strong {
  color: var(--c-text);
  flex: 0 0 auto;
}

.page-about .about-region__figure {
  margin: 0;
  border: var(--about-border-w) solid var(--c-line);
  background: var(--c-bg-card);
  box-shadow: var(--shadow-card);
  padding: 8px;
}

.page-about .about-region__figure img {
  display: block;
  width: 100%;
  height: auto;
}

.page-about .about-region__corner {
  position: absolute;
  right: 0;
  top: 0;
  writing-mode: vertical-rl;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--c-text-sub);
  text-transform: uppercase;
}

/* ========== VISION ========== */
.page-about .about-vision {
  background: var(--c-bg-main);
  border-top: var(--about-border-w) solid var(--c-line);
  padding: 64px 0 72px;
}

.page-about .about-vision__inner {
  max-width: 780px;
  position: relative;
}

.page-about .about-vision__inner h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 6vw, 3.4rem);
  line-height: 1.05;
  margin: 8px 0 20px;
  color: var(--c-text);
}

.page-about .about-vision__text {
  max-width: 60em;
  color: var(--c-text-sub);
  line-height: 1.8;
  font-size: 1.05rem;
  margin: 0 0 28px;
}

.page-about .about-vision__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

/* ========== RESPONSIVE ========== */
@media (min-width: 768px) {
  .page-about .about-origin__grid {
    grid-template-columns: 1.1fr 0.9fr;
    gap: 40px;
    align-items: center;
  }

  .page-about .about-origin__stats {
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-top: 48px;
  }

  .page-about .about-timeline__item {
    grid-template-columns: 220px 1fr;
    gap: 28px;
  }

  .page-about .about-timeline__season {
    font-size: 1.25rem;
    padding: 10px 6px;
  }

  .page-about .about-team__cards {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .page-about .about-region__grid {
    grid-template-columns: 1fr 1.2fr;
    gap: 40px;
    align-items: center;
  }

  .page-about .about-region__corner {
    right: -8px;
  }
}

@media (min-width: 992px) {
  .page-about .about-hero {
    padding-top: 44px;
    padding-bottom: 72px;
  }

  .page-about .about-hero__layout {
    grid-template-columns: 1.5fr 0.85fr;
    gap: 56px;
    align-items: end;
  }

  .page-about .about-hero__corner {
    display: block;
    position: absolute;
    right: 8px;
    top: 46px;
    writing-mode: vertical-rl;
    font-size: 12px;
    letter-spacing: 0.18em;
    color: var(--c-text-sub);
    text-transform: uppercase;
  }

  .page-about .about-origin {
    padding-top: 80px;
    padding-bottom: 72px;
  }

  .page-about .about-milestones {
    padding-top: 80px;
    padding-bottom: 72px;
  }

  .page-about .about-team {
    padding-top: 80px;
    padding-bottom: 80px;
  }

  .page-about .about-region {
    padding-top: 80px;
    padding-bottom: 72px;
  }

  .page-about .about-vision {
    padding-top: 80px;
    padding-bottom: 96px;
  }
}