/* ============================================
   COMPONENTS.CSS — Shared UI Components
   ============================================ */

/* ============================================
   LANGUAGE SWITCHER
   ============================================ */

.lang-switcher {
  display: flex;
  gap: var(--space-xs, 0.5rem);
  align-items: center;
}

.lang-switcher__btn {
  background: none;
  border: 1px solid currentColor;
  padding: 0.2rem 0.5rem;
  cursor: pointer;
  font-size: 0.75rem;
  font-family: var(--font-mono, monospace);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  opacity: 0.45;
  transition: opacity 0.2s ease;
  color: var(--color-surface);
  line-height: 1.4;
}

.lang-switcher__btn:hover {
  opacity: 0.75;
}

.lang-switcher__btn--active {
  opacity: 1;
}

.site-header__right {
  display: flex;
  align-items: center;
  gap: var(--space-sm, 1rem);
}

/* ============================================
   SKIP LINK — accessibility
   ============================================ */

.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-md);
  z-index: 200;
  padding: 0.5rem 1rem;
  background-color: var(--color-accent);
  color: var(--color-surface);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
}

.skip-link:focus {
  top: var(--space-md);
}

/* ============================================
   BUTTONS
   ============================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.875rem 2rem;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border: 2px solid transparent;
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
  white-space: nowrap;
  cursor: pointer;
}

.btn--accent {
  background: linear-gradient(
    to right,
    var(--color-accent-dark) 50%,
    var(--color-accent) 50%
  );
  background-size: 200% 100%;
  background-position: right center;
  color: var(--color-surface);
  border-color: var(--color-accent);
  transition: background-position 0.4s ease, border-color 0.4s ease, color var(--transition-fast);
}

.btn--accent:hover, .btn--accent:focus-visible {
  background-position: left center;
  border-color: var(--color-accent-dark);
}

.btn--outline {
  background: linear-gradient(
    to right,
    var(--color-primary) 50%,
    transparent 50%
  );
  background-size: 200% 100%;
  background-position: right center;
  color: var(--color-primary);
  border-color: var(--color-primary);
  transition: background-position 0.4s ease, color 0.4s ease;
}

.btn--outline:hover, .btn--outline:focus-visible {
  background-position: left center;
  color: var(--color-surface);
}

.btn--outline-light {
  background: linear-gradient(
    to right,
    var(--color-surface) 50%,
    transparent 50%
  );
  background-size: 200% 100%;
  background-position: right center;
  color: var(--color-surface);
  border-color: var(--color-surface);
  transition: background-position 0.4s ease, color 0.4s ease;
}

.btn--outline-light:hover, .btn--outline-light:focus-visible {
  background-position: left center;
  color: var(--color-primary);
}

.btn--lg {
  padding: 1.1rem 2.5rem;
  font-size: 1rem;
}

.btn--full {
  width: 100%;
}

/* ============================================
   HEADER
   ============================================ */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding-block: 1.25rem;
  transition: background-color var(--transition-base),
              box-shadow var(--transition-base),
              transform 0.3s ease;
}

.site-header.is-hidden {
  transform: translateY(-100%);
}

.site-header--scrolled {
  background-color: var(--color-primary);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.site-header__inner {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.site-header__logo {
  display: flex;
  flex-direction: column;
  line-height: 1;
  color: var(--color-surface);
  flex-shrink: 0;
}

.logo__text {
  font-family: var(--font-display);
  font-size: 1.5rem;
  letter-spacing: 0.04em;
}

.logo__sub {
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.site-nav {
  flex: 1;
}

.site-nav__list {
  display: flex;
  gap: var(--space-xl);
  align-items: center;
}

.site-nav__link {
  color: rgba(255,255,255,0.8);
  font-size: 0.875rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  transition: color var(--transition-fast);
}

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

/* --- Dropdown (Инвесторам) --- */

.site-nav__item--dropdown {
  position: relative;
}

.site-nav__dropdown-head {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.site-nav__toggle {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.25rem;
  color: rgba(255, 255, 255, 0.8);
  transition: color var(--transition-fast);
}

/* Expanded hit area: guarantees a ≥44×44px tap target on touch devices
   without growing the visual footprint of the caret in the nav row */
.site-nav__toggle::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 44px;
  height: 44px;
  transform: translate(-50%, -50%);
}

.site-nav__toggle:hover,
.site-nav__item--dropdown.is-open .site-nav__toggle {
  color: var(--color-accent);
}

.site-nav__caret {
  display: block;
  font-size: 0.9em;
  line-height: 1;
  transition: transform var(--transition-fast);
}

.site-nav__item--dropdown.is-open .site-nav__caret {
  transform: rotate(180deg);
}

.site-nav__dropdown {
  position: absolute;
  top: calc(100% + 0.75rem);
  left: 50%;
  transform: translate(-50%, 8px);
  min-width: 320px;
  padding-block: 0.5rem;
  background-color: var(--color-primary);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.35);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base), transform var(--transition-base), visibility var(--transition-base);
}

/* invisible bridge so the pointer can travel from the toggle to the menu */
.site-nav__dropdown::before {
  content: '';
  position: absolute;
  top: -0.85rem;
  left: 0;
  right: 0;
  height: 0.85rem;
}

.site-nav__sublink {
  display: block;
  padding: 0.6rem 1.25rem;
  font-size: 0.8rem;
  letter-spacing: 0.02em;
  color: rgba(255, 255, 255, 0.75);
  transition: color var(--transition-fast), background-color var(--transition-fast);
}

.site-nav__sublink:hover,
.site-nav__sublink:focus-visible {
  color: var(--color-accent);
  background-color: rgba(255, 255, 255, 0.04);
}

@media (min-width: 901px) {
  .site-nav__item--dropdown:hover .site-nav__dropdown,
  .site-nav__item--dropdown:focus-within .site-nav__dropdown,
  .site-nav__item--dropdown.is-open .site-nav__dropdown {
    opacity: 1;
    visibility: visible;
    transform: translate(-50%, 0);
  }
}

.site-header__cta {
  flex-shrink: 0;
}

.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
  margin-left: auto;
}

.burger__line {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-surface);
  transition: transform var(--transition-base), opacity var(--transition-base);
}

/* Open state — lines fold into a cross (state carried by aria-expanded) */
.burger[aria-expanded="true"] .burger__line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.burger[aria-expanded="true"] .burger__line:nth-child(2) {
  opacity: 0;
}

.burger[aria-expanded="true"] .burger__line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

@media (max-width: 900px) {
  .burger { display: flex; }
  .site-header__cta { display: none; }

  /* Keep logo, language switcher and burger above the fullscreen menu overlay */
  .site-header__logo,
  .site-header__right,
  .burger {
    position: relative;
    z-index: 101;
  }

  .site-nav {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--color-primary);
    padding: 6rem var(--container-pad) var(--space-3xl);
    overflow-y: auto;
  }

  .site-nav.nav--open {
    display: block;
  }

  .site-nav__list {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-xl);
  }

  .site-nav__link {
    font-size: 2rem;
    font-family: var(--font-display);
    color: var(--color-surface);
  }

  /* Scale the caret up alongside the 2rem menu links */
  .site-nav__toggle {
    font-size: 1.5rem;
  }

  /* Dropdown becomes an inline accordion inside the fullscreen menu */
  .site-nav__dropdown {
    position: static;
    transform: none;
    min-width: 0;
    padding: var(--space-sm) 0 0 var(--space-lg);
    background: none;
    border: 0;
    box-shadow: none;
    display: none;
    opacity: 1;
    visibility: visible;
    transition: none;
  }

  .site-nav__dropdown::before {
    display: none;
  }

  .site-nav__item--dropdown.is-open .site-nav__dropdown {
    display: block;
  }

  .site-nav__sublink {
    font-size: 1.05rem;
    padding: 0.55rem 0;
  }
}

/* ============================================
   HERO
   ============================================ */

.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  background-color: var(--color-dark);
  background-image: url('../img/hero-bg.jpg');
  background-size: cover;
  background-position: center;
  overflow: hidden;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(26,26,26,0.92) 0%, rgba(26,26,26,0.7) 100%);
}

.hero__content {
  position: relative;
  z-index: 1;
  color: var(--color-surface);
  padding-block: var(--space-5xl);
  /* flex item: without this a long word inflates min-content width and clips */
  min-width: 0;
}

.hero__title {
  font-size: clamp(2.25rem, 8vw, 7.5rem);
  margin-bottom: var(--space-xl);
  line-height: 0.95;
}

.hero__sub {
  font-size: clamp(1rem, 1.8vw, 1.25rem);
  color: rgba(255,255,255,0.8);
  max-width: 600px;
  margin-bottom: var(--space-3xl);
  line-height: 1.6;
}

.hero__actions {
  display: flex;
  gap: var(--space-lg);
  flex-wrap: wrap;
}

/* PAGE HERO (non-homepage) */
.page-hero {
  padding-block: calc(var(--space-5xl) + var(--header-h)) var(--space-3xl);
  background-color: var(--color-bg);
  /* background image support — same mechanism as .hero */
  position: relative;
  overflow: hidden;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

/* overlay element — same pattern as .hero__overlay on the homepage */
.page-hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(26,26,26,0.55) 0%, rgba(26,26,26,0.35) 100%);
  pointer-events: none;
}

/* stronger overlay for dark variant — matches homepage hero opacity */
.page-hero--dark .page-hero__overlay {
  background: linear-gradient(135deg, rgba(26,26,26,0.88) 0%, rgba(26,26,26,0.72) 100%);
}

/* push content above the overlay */
.page-hero > .container {
  position: relative;
  z-index: 1;
}

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

.page-hero__title {
  font-size: clamp(2.5rem, 6vw, 5.5rem);
  margin-bottom: var(--space-lg);
}

.page-hero__sub {
  font-size: clamp(1rem, 1.5vw, 1.15rem);
  color: var(--color-muted);
  max-width: 700px;
}

.page-hero--dark .page-hero__sub {
  color: rgba(255,255,255,0.7);
}

/* when a bg image is present, force light text on .page-hero (non-dark) too */
.page-hero[style*="background-image"] .page-hero__sub {
  color: rgba(255,255,255,0.75);
}

.page-hero[style*="background-image"] .page-hero__title {
  color: var(--color-surface);
}

/* When breadcrumbs precede the hero they already clear the fixed header —
   don't add the 80px header offset a second time */
.breadcrumbs + .page-hero,
.breadcrumbs + article .page-hero {
  padding-top: var(--space-3xl);
}

.breadcrumbs + article .article-detail__header {
  padding-top: var(--space-2xl);
}

/* ============================================
   STATS
   ============================================ */

.stats {
  background-color: var(--color-primary);
  padding-block: var(--space-4xl);
}

.stats__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--space-3xl);
}

.stats__item {
  display: flex;
  flex-direction: column;
}

/* ============================================
   PROJECT CARDS
   ============================================ */

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: var(--space-xl);
}

.project-card {
  background-color: var(--color-surface);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: transform var(--transition-base);
}

.project-card:hover {
  transform: translateY(-4px);
}

.project-card__img-wrap {
  aspect-ratio: 16/9;
  overflow: hidden;
}

.project-card__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.project-card:hover .project-card__img {
  transform: scale(1.04);
}

.project-card__body {
  padding: var(--space-xl);
  color: var(--color-primary);
}

.project-card__badge {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  background-color: var(--color-accent);
  color: var(--color-surface);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-md);
}

.project-card__title {
  font-size: clamp(1.25rem, 2vw, 1.75rem);
  margin-bottom: var(--space-sm);
  color: var(--color-primary);
}

.project-card__meta {
  font-size: 0.85rem;
  color: var(--color-muted);
  margin-bottom: var(--space-sm);
}

.project-card__stat {
  font-size: 0.9rem;
  color: var(--color-primary);
  margin-bottom: var(--space-md);
}

.project-card__link {
  color: var(--color-accent);
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  transition: color var(--transition-fast);
}

.project-card__link:hover {
  color: var(--color-accent-dark);
}

/* ============================================
   KEY PROJECTS — light bento (desktop 1A) /
   stacked white cards (mobile 2A)
   Imported from the "Ключевые проекты" design,
   rethemed to the site's light tokens.
   ============================================ */

.kp__head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: var(--space-lg);
  margin-bottom: clamp(1.75rem, 3.5vw, 2.75rem);
}

.kp__eyebrow {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
}

.kp__title {
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.05;
}

.kp__all {
  flex-shrink: 0;
  font-family: var(--font-base);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
  padding-bottom: 6px;
  border-bottom: 1px solid rgba(200, 146, 42, 0.4);
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

.kp__all:hover {
  color: var(--color-accent-dark);
  border-color: var(--color-accent);
}

/* ── Bento grid: featured (col 1, two rows tall) + up to four small cards ── */
.kp__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-auto-rows: 250px;
  gap: 18px;
}

.kp-card--featured {
  grid-column: 1 / 2;
  grid-row: 1 / 3;
}

.kp-card {
  display: flex;
  flex-direction: column;
  /* Allow the grid/flex item to shrink below its content on narrow phones. */
  min-width: 0;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 18px;
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.03);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.kp-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 24px 46px -26px rgba(0, 0, 0, 0.32);
  border-color: rgba(200, 146, 42, 0.35);
}

.kp-card__media {
  position: relative;
  flex: 1;
  min-height: 108px;
  /* Neutral hatched placeholder shown when a project has no cover image. */
  background-color: #e7e2d9;
  background-image: repeating-linear-gradient(135deg, #e7e2d9 0 14px, #ddd7cc 14px 28px);
  overflow: hidden;
}

.kp-card__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.kp-card:hover .kp-card__img {
  transform: scale(1.05);
}

.kp-card__ph {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-muted);
}

.kp-card__body {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  padding: 1.15rem 1.25rem 1.25rem;
}

.kp-card__tag {
  align-self: flex-start;
  font-family: var(--font-base);
  font-size: 0.66rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-primary);
  background: var(--color-accent);
  padding: 5px 10px;
  border-radius: 6px;
}

.kp-card__title {
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-primary);
  overflow-wrap: anywhere;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.kp-card--featured .kp-card__title {
  font-size: clamp(1.25rem, 1.7vw, 1.55rem);
  -webkit-line-clamp: 3;
}

.kp-card__meta {
  margin-top: auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-base);
  font-size: 0.8rem;
  color: var(--color-muted);
}

.kp-card__year {
  color: var(--color-accent);
  font-weight: 500;
}

/* Read-link: shown on the featured card (desktop) and on every card (mobile). */
.kp-card__link {
  display: none;
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--color-accent);
}

.kp-card--featured .kp-card__link {
  display: inline-block;
}

/* Bottom "all projects" button — only surfaces on mobile (mirrors design 2A). */
.kp__foot {
  display: none;
  margin-top: var(--space-xl);
}

.kp__foot .btn {
  width: 100%;
}

@media (max-width: 900px) {
  .kp__grid {
    grid-template-columns: repeat(2, 1fr);
    grid-auto-rows: 300px;
  }

  .kp-card--featured {
    grid-column: 1 / 3;
    grid-row: auto;
  }
}

@media (max-width: 600px) {
  .kp__head {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-md);
  }

  .kp__grid {
    grid-template-columns: 1fr;
    grid-auto-rows: auto;
    gap: 16px;
  }

  .kp-card--featured {
    grid-column: auto;
  }

  .kp-card__media {
    flex: none;
    height: 180px;
  }

  .kp-card--featured .kp-card__media {
    height: 210px;
  }

  .kp-card__title {
    font-size: 1.15rem;
    -webkit-line-clamp: 3;
  }

  .kp-card__link {
    display: inline-block;
  }

  .kp__foot {
    display: block;
  }
}

/* Filter buttons */
.projects-filter {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
  margin-bottom: var(--space-3xl);
}

.btn-filter {
  padding: 0.5rem 1.25rem;
  font-size: 0.825rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border: 1.5px solid var(--color-border);
  border-radius: 999px;
  color: var(--color-muted);
  transition: border-color var(--transition-fast), color var(--transition-fast),
              background-color var(--transition-fast);
}

.btn-filter:hover,
.btn-filter--active {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background-color: rgba(200, 146, 42, 0.08);
}

/* ============================================
   NEWS CARDS
   ============================================ */

.news-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-xl);
}

.news-card {
  background-color: var(--color-surface);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
  transition: box-shadow var(--transition-base);
}

.news-card:hover {
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.news-card__img-wrap {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border-radius: var(--radius-md) var(--radius-md) 0 0;
}

.news-card__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform var(--transition-slow);
}

.news-card:hover .news-card__img {
  transform: scale(1.03);
}

.news-card__title {
  font-size: clamp(1rem, 1.5vw, 1.35rem);
  line-height: 1.3;
  font-weight: 600;
  padding: var(--space-lg) var(--space-xl) var(--space-xl);
  margin-bottom: 0;
}

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

/* ============================================
   CTA BLOCK
   ============================================ */

.cta-block {
  background-color: var(--color-accent);
  padding-block: var(--space-4xl);
}

.cta-block__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3xl);
  flex-wrap: wrap;
}

.cta-block__title {
  font-size: clamp(1.75rem, 3vw, 3rem);
  color: var(--color-surface);
  margin-bottom: var(--space-sm);
}

.cta-block__sub {
  color: rgba(255,255,255,0.85);
  max-width: 520px;
}

.cta-block .btn--accent {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-surface);
  flex-shrink: 0;
}

.cta-block .btn--accent:hover {
  background-color: var(--color-dark);
  border-color: var(--color-dark);
}

/* ============================================
   BREADCRUMBS
   ============================================ */

.breadcrumbs {
  padding-block: calc(var(--space-md) + var(--header-h)) var(--space-md);
  background-color: var(--color-primary);
}

.breadcrumbs__list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2xs) var(--space-sm);
  align-items: center;
  font-size: 0.8rem;
  color: var(--color-muted);
}

.breadcrumbs__list li + li::before {
  content: '→';
  margin-right: var(--space-sm);
}

.breadcrumbs__link {
  color: var(--color-muted);
  transition: color var(--transition-fast);
}

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

.breadcrumbs__current {
  color: var(--color-surface);
}

/* ============================================
   CONTACT FORM
   ============================================ */

.contacts-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4xl);
  align-items: start;
}

@media (max-width: 768px) {
  .contacts-grid {
    grid-template-columns: 1fr;
  }
}

.contacts-info__title {
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  margin-bottom: var(--space-3xl);
}

.contacts-info__item {
  margin-bottom: var(--space-xl);
}

.contacts-info__item h3 {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-muted);
  margin-bottom: var(--space-xs);
}

.contacts-info__link {
  font-size: 1.1rem;
  color: var(--color-accent);
}

.contacts-info__link:hover {
  text-decoration: underline;
}

.contacts-map {
  margin-top: var(--space-xl);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.contacts-map iframe {
  border: 0;
  display: block;
}

.contacts-form-wrap h2 {
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  margin-bottom: var(--space-md);
}

.contacts-form-wrap__sub {
  color: var(--color-muted);
  margin-bottom: var(--space-3xl);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.form__group {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.form__label {
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.02em;
}

.required {
  color: var(--color-accent);
}

.form__input,
.form__textarea {
  padding: 0.75rem 1rem;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  background-color: var(--color-surface);
  font-size: 1rem;
  transition: border-color var(--transition-fast);
  width: 100%;
}

.form__input:focus,
.form__textarea:focus {
  outline: none;
  border-color: var(--color-accent);
}

.form__error {
  font-size: 0.8rem;
  color: var(--color-error);
}

.form__note {
  font-size: 0.75rem;
  color: var(--color-muted);
  text-align: center;
}

/* ============================================
   FAQ
   ============================================ */

.faq-container {
  max-width: 860px;
}

.faq-item {
  border-bottom: 1px solid var(--color-border);
}

.faq-item__question {
  padding-block: var(--space-xl);
  font-family: var(--font-body);
  font-size: 1.05rem;
  font-weight: 500;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-lg);
  transition: color var(--transition-fast);
}

.faq-item__question::-webkit-details-marker {
  display: none;
}

.faq-item__question::after {
  content: '+';
  font-family: var(--font-mono);
  font-size: 1.5rem;
  color: var(--color-accent);
  flex-shrink: 0;
  transition: transform var(--transition-base);
}

.faq-item[open] .faq-item__question::after {
  transform: rotate(45deg);
}

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

.faq-item__answer {
  padding-bottom: var(--space-xl);
  color: var(--color-muted);
  line-height: 1.7;
}

/* ============================================
   PROJECT DETAIL
   ============================================ */

.project-detail__cover {
  width: 100%;
  max-height: 60vh;
  overflow: hidden;
}

.project-detail__cover-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.project-detail__body {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: var(--space-4xl);
  align-items: start;
  padding-top: var(--space-4xl);
}

@media (max-width: 900px) {
  .project-detail__body {
    grid-template-columns: 1fr;
  }
}

.project-detail__meta {
  display: flex;
  gap: var(--space-xl);
  flex-wrap: wrap;
  color: rgba(255,255,255,0.7);
  font-size: 0.9rem;
  margin-top: var(--space-xl);
  padding-top: var(--space-lg);
  border-top: 1px solid rgba(255,255,255,0.15);
}

.project-story__section {
  margin-bottom: var(--space-3xl);
}

.project-story__label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-accent);
  margin-bottom: var(--space-md);
}

.project-story__text {
  font-size: 1rem;
  line-height: 1.75;
}

.project-params {
  background-color: var(--color-surface);
  border-radius: var(--radius-md);
  padding: var(--space-xl);
  border: 1px solid var(--color-border);
}

.project-params__title {
  font-size: 1.25rem;
  margin-bottom: var(--space-xl);
}

.project-params__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.project-params__item dt {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-muted);
  margin-bottom: 0.25rem;
}

.project-params__item dd {
  font-size: 1.35rem;
  font-family: var(--font-mono);
  font-weight: 700;
}

/* Gallery */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-md);
}

.gallery-item__img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  border-radius: var(--radius-sm);
}

/* ============================================
   SERVICE DETAIL
   ============================================ */

.service-detail__category {
  display: inline-block;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  margin-bottom: var(--space-md);
}

.service-detail__body {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: var(--space-4xl);
  align-items: start;
  padding-block: var(--space-4xl);
}

@media (max-width: 900px) {
  .service-detail__body {
    grid-template-columns: 1fr;
  }
}

/* Grid children default to min-width:auto — long words would stretch the column */
.service-detail__main,
.service-detail__sidebar {
  min-width: 0;
}

.service-detail__section {
  margin-bottom: var(--space-3xl);
  padding-left: var(--space-lg);
}

.service-detail__section h2 {
  font-size: clamp(1.5rem, 2.5vw, 2.25rem);
  margin-bottom: var(--space-xl);
}

.task-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.task-list__item {
  padding: var(--space-md) var(--space-lg) var(--space-md) var(--space-md);
  background-color: var(--color-surface);
  border-left: 3px solid var(--color-accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 0.95rem;
}

.stages-list {
  counter-reset: stage;
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
}

.stages-list__item {
  display: flex;
  gap: var(--space-lg);
  counter-increment: stage;
}

.stages-list__item::before {
  content: counter(stage, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-accent);
  opacity: 0.5;
  flex-shrink: 0;
  line-height: 1;
  padding-top: 0.25rem;
}

.stages-list__body {
  flex: 1;
  min-width: 0;
}

.stages-list__title {
  font-size: 1.1rem;
  margin-bottom: var(--space-xs);
}

.stages-list__desc {
  font-size: 0.9rem;
  color: var(--color-muted);
}

.service-sidebar-box {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-xl);
  margin-bottom: var(--space-xl);
}

.service-sidebar-box h3 {
  font-size: 1rem;
  margin-bottom: var(--space-sm);
}

.service-sidebar-box__value {
  font-size: 1.5rem;
  color: var(--color-accent);
}

.service-sidebar-box--cta {
  background-color: var(--color-primary);
  color: var(--color-surface);
  border-color: var(--color-primary);
}

.service-sidebar-box--cta h3 {
  color: var(--color-surface);
}

.service-sidebar-box--cta p {
  color: rgba(255,255,255,0.7);
  font-size: 0.875rem;
  margin-bottom: var(--space-lg);
}

/* ============================================
   EQUIPMENT
   ============================================ */

.equipment-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--space-xl);
}

.equipment-card {
  background-color: var(--color-surface);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.equipment-card__img-wrap {
  aspect-ratio: 16/9;
  overflow: hidden;
  background-color: var(--color-primary);
}

.equipment-card__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.equipment-card__body {
  padding: var(--space-xl);
}

.equipment-card__name {
  font-size: clamp(1.1rem, 2vw, 1.5rem);
  margin-bottom: var(--space-md);
}

.equipment-card__purpose {
  font-size: 0.9rem;
  color: var(--color-muted);
  margin-bottom: var(--space-md);
}

.equipment-card__application {
  font-size: 0.875rem;
  margin-bottom: var(--space-md);
}

.equipment-specs__toggle {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-accent);
  cursor: pointer;
  list-style: none;
}

.equipment-specs__toggle::-webkit-details-marker {
  display: none;
}

.equipment-specs__list {
  margin-top: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.equipment-specs__item {
  display: flex;
  justify-content: space-between;
  font-size: 0.825rem;
  padding-block: 0.35rem;
  border-bottom: 1px solid var(--color-border);
}

.equipment-specs__item dt {
  color: var(--color-muted);
}

/* ============================================
   ARTICLES
   ============================================ */

.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: var(--space-xl);
}

.article-card {
  background-color: var(--color-surface);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
  transition: transform var(--transition-base);
}

.article-card:hover {
  transform: translateY(-4px);
}

.article-card__img-wrap {
  aspect-ratio: 16/9;
  overflow: hidden;
}

.article-card__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.article-card:hover .article-card__img {
  transform: scale(1.04);
}

.article-card__body {
  padding: var(--space-xl);
}

.article-card__date {
  display: block;
  font-size: 0.75rem;
  font-family: var(--font-mono);
  color: var(--color-muted);
  letter-spacing: 0.06em;
  margin-bottom: var(--space-md);
}

.article-card__title {
  font-size: clamp(1rem, 1.5vw, 1.3rem);
  margin-bottom: var(--space-md);
  line-height: 1.25;
}

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

.article-card__excerpt {
  font-size: 0.875rem;
  color: var(--color-muted);
  margin-bottom: var(--space-lg);
}

.article-card__link {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-accent);
}

/* Article detail */
.article-detail__header {
  padding-top: calc(var(--space-2xl) + var(--header-h));
  padding-bottom: var(--space-2xl);
}

.article-detail__meta {
  display: flex;
  gap: var(--space-lg);
  font-size: 0.8rem;
  font-family: var(--font-mono);
  color: rgba(255,255,255,0.6);
  margin-bottom: var(--space-xl);
  letter-spacing: 0.04em;
}

.article-detail__cover {
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
}

.article-detail__cover-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.article-detail__body {
  padding-block: var(--space-4xl);
  max-width: 820px;
}

.article-content {
  font-size: clamp(1rem, 1.2vw, 1.1rem);
  line-height: 1.8;
}

/* ============================================
   ABOUT PAGE
   ============================================ */

/* inspired by Martinus narrative-text hero — eyebrow + lead paragraph pattern */
.about-hero__eyebrow {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--color-accent);
  margin-bottom: var(--space-lg);
}

.about-intro__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: var(--space-5xl);
  align-items: start;
}

@media (max-width: 900px) {
  .about-intro__grid {
    grid-template-columns: 1fr;
  }
}

.about-intro__text h2 {
  font-size: clamp(1.75rem, 3vw, 3rem);
  margin-bottom: var(--space-xl);
}

.about-intro__text p {
  margin-bottom: var(--space-lg);
  color: var(--color-muted);
}

.about-intro__stats {
  display: flex;
  flex-direction: column;
  gap: var(--space-3xl);
}

.about-intro__stats .stat-number {
  color: var(--color-accent);
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--space-xl);
}

.value-item {
  padding: var(--space-xl);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.value-item h3 {
  font-size: 1.25rem;
  margin-bottom: var(--space-md);
}

.value-item p {
  font-size: 0.9rem;
  color: var(--color-muted);
}

.equipment-advantages__intro,
.projects-period__intro {
  max-width: 70ch;
  margin-bottom: var(--space-2xl);
  color: var(--color-muted);
  line-height: 1.7;
}

/* ── TIMELINE — inspired by Martinus chronological milestone narrative ──────── */

.about-timeline {
  position: relative;
}

.timeline {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--space-3xl) var(--space-xl);
  position: relative;
}

/* horizontal rule connecting all items at desktop */
.timeline::before {
  content: '';
  position: absolute;
  top: 1.1rem; /* aligns with the year text baseline */
  left: 0;
  right: 0;
  height: 1px;
  background: rgba(255, 255, 255, 0.1);
  pointer-events: none;
}

.timeline__item {
  position: relative;
  padding-top: var(--space-xl);
}

/* accent dot on the connecting line */
.timeline__item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 8px;
  height: 8px;
  background-color: var(--color-accent);
  border-radius: 50%;
  transform: translateY(-50%);
  margin-top: calc(1.1rem); /* matches ::before line top */
}

.timeline__year {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--color-accent);
  text-transform: uppercase;
  margin-bottom: var(--space-md);
}

.timeline__title {
  font-size: clamp(1rem, 1.5vw, 1.35rem);
  color: var(--color-surface);
  margin-bottom: var(--space-sm);
}

.timeline__text {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.55);
  line-height: 1.65;
}

@media (max-width: 768px) {
  .timeline::before { display: none; }

  .timeline {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .timeline__item {
    padding-top: 0;
    padding-left: var(--space-xl);
    padding-bottom: var(--space-xl);
    border-left: 1px solid rgba(255, 255, 255, 0.1);
  }

  .timeline__item::before {
    left: -4px;
    top: var(--space-xs);
    margin-top: 0;
  }
}

/* ── PILLAR CARDS — inspired by Martinus "Way / People / Leaders" nav cards ── */

.pillars-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

@media (max-width: 900px) {
  .pillars-grid {
    grid-template-columns: 1fr;
  }
}

.pillar-card {
  display: block;
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: transform var(--transition-base), border-color var(--transition-base);
  text-decoration: none;
}

.pillar-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-accent);
}

.pillar-card__inner {
  padding: var(--space-2xl);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  height: 100%;
  /* accent left bar appears on hover — inspired by Martinus card reveal pattern */
  border-left: 3px solid transparent;
  transition: border-color var(--transition-base);
}

.pillar-card:hover .pillar-card__inner {
  border-left-color: var(--color-accent);
}

.pillar-card__title {
  font-size: clamp(1.25rem, 2vw, 1.75rem);
  color: var(--color-primary);
}

.pillar-card__text {
  font-size: 0.9rem;
  color: var(--color-muted);
  line-height: 1.7;
  flex: 1;
}

.pillar-card__link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-accent);
  letter-spacing: 0.02em;
  margin-top: var(--space-sm);
  transition: letter-spacing var(--transition-base);
}

.pillar-card:hover .pillar-card__link {
  letter-spacing: 0.06em;
}

/* ============================================
   FOOTER
   ============================================ */

.site-footer {
  background-color: var(--color-primary);
  color: var(--color-surface);
  padding-top: var(--space-3xl);
}

.site-footer__inner {
  display: grid;
  grid-template-columns: 1.5fr 3fr 1fr;
  gap: var(--space-2xl) var(--space-xl);
  padding-bottom: var(--space-2xl);
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.site-footer__nav {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-2xl) var(--space-xl);
}

@media (max-width: 900px) {
  .site-footer__inner {
    grid-template-columns: 1fr 1fr;
  }
  .site-footer__brand,
  .site-footer__nav {
    grid-column: 1 / -1;
  }
}

@media (max-width: 600px) {
  .site-footer__inner,
  .site-footer__nav {
    grid-template-columns: 1fr;
  }
}

.site-footer__logo {
  font-family: var(--font-display);
  font-size: 1.75rem;
  letter-spacing: 0.04em;
  color: var(--color-surface);
  display: block;
  margin-bottom: var(--space-md);
}

.site-footer__tagline {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.5);
  max-width: 240px;
}

.footer-nav-col__title {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-accent);
  margin-bottom: var(--space-lg);
}

.site-footer__nav ul li,
.site-footer__contacts address {
  margin-bottom: var(--space-md);
}

.site-footer__nav ul a,
.site-footer__contacts a {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.6);
  transition: color var(--transition-fast);
}

.site-footer__nav ul a:hover,
.site-footer__contacts a:hover {
  color: var(--color-accent);
}

.site-footer__contacts a.site-footer__contact-link {
  color: var(--color-accent);
}

.site-footer__bottom {
  padding-block: var(--space-lg);
}

.site-footer__bottom p {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.35);
  letter-spacing: 0.04em;
}

/* ============================================
   SUCCESS PAGE
   ============================================ */

.success-section {
  min-height: 60vh;
  display: flex;
  align-items: center;
}

.success-container {
  text-align: center;
  max-width: 500px;
  margin-inline: auto;
}

.success-icon {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background-color: var(--color-accent);
  color: var(--color-surface);
  font-size: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-xl);
}

.success-title {
  font-size: clamp(2rem, 4vw, 3.5rem);
  margin-bottom: var(--space-lg);
}

.success-text {
  color: var(--color-muted);
  margin-bottom: var(--space-3xl);
}

/* ============================================
   SERVICES PAGE
   ============================================ */

.services-category {
  margin-bottom: var(--space-4xl);
}

.services-category:last-child {
  margin-bottom: 0;
}

.services-category__title {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  margin-bottom: var(--space-3xl);
  padding-bottom: var(--space-lg);
  border-bottom: 2px solid var(--color-accent);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-xl);
}

.service-item {
  padding: var(--space-xl);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.service-item__title {
  font-size: clamp(1.1rem, 2vw, 1.5rem);
  margin-bottom: var(--space-md);
}

.service-item__desc {
  font-size: 0.9rem;
  color: var(--color-muted);
  margin-bottom: var(--space-lg);
}

.service-item__link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-accent);
}

/* ============================================
   PEOPLE EDITORIAL
   ============================================ */

.people-editorial {
  display: flex;
  flex-direction: column;
  gap: var(--space-4xl);
}

.people-section {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: var(--space-3xl);
}

.people-section--reverse {
  flex-direction: row-reverse;
}

.people-section__image {
  flex: 0 0 45%;
  max-width: 45%;
}

.people-section__img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  display: block;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--color-bg-alt) 0%, var(--color-border) 100%);
}

.people-section__content {
  flex: 1 1 50%;
}

.people-section__title {
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-text);
  margin: 0 0 var(--space-lg);
  line-height: 1.25;
}

.people-section__text {
  font-size: var(--text-base);
  color: var(--color-muted);
  line-height: 1.7;
  margin: 0 0 var(--space-md);
}

.people-section__text:last-child {
  margin-bottom: 0;
}

@media (max-width: 900px) {
  .people-section,
  .people-section--reverse {
    flex-direction: column;
  }

  .people-section__image {
    flex: none;
    max-width: 100%;
    width: 100%;
  }
}

/* ============================================
   LEADERS GRID
   ============================================ */

.leaders-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-2xl);
}

.leader-card {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: var(--space-xl);
  align-items: start;
  padding: var(--space-xl);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: box-shadow var(--transition-base);
}

.leader-card:hover {
  box-shadow: var(--shadow-md);
}

.leader-card__photo-wrap {
  width: 180px;
  flex-shrink: 0;
}

.leader-card__photo {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  display: block;
  border-radius: var(--radius-sm);
}

.leader-card__photo--placeholder {
  background: linear-gradient(135deg, var(--color-bg-alt) 0%, var(--color-border) 100%);
  border-radius: var(--radius-sm);
}

.leader-card__body {
  min-width: 0;
}

.leader-card__name {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
  margin: 0 0 var(--space-xs);
}

.leader-card__title {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin: 0 0 var(--space-md);
}

.leader-card__bio {
  font-size: var(--text-sm);
  color: var(--color-muted);
  line-height: 1.65;
  margin: 0;
}

@media (max-width: 1024px) {
  .leaders-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 600px) {
  .leader-card {
    grid-template-columns: 1fr;
  }

  .leader-card__photo-wrap {
    width: 120px;
  }
}

/* ============================================
   PILLARS GRID VARIANTS
   ============================================ */

.pillars-grid--two {
  grid-template-columns: repeat(2, 1fr);
}

@media (max-width: 640px) {
  .pillars-grid--two {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   MISC
   ============================================ */

.no-results {
  color: var(--color-muted);
  padding: var(--space-3xl);
  text-align: center;
}

/* Responsive helpers */
@media (max-width: 768px) {
  .hero__actions {
    flex-direction: column;
  }
  .cta-block__inner {
    flex-direction: column;
    text-align: center;
  }
  .projects-grid,
  .news-grid {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   RAILWAY TIMELINE — scroll-drawn vertical track
   ============================================ */

.railway {
  --railway-rail-col: 80px;
  --railway-muted: rgba(26, 26, 26, 0.14);
  --railway-active: var(--color-accent);
  --railway-sleeper-gap: 28px;
  --railway-progress: 0;
  /* Train (locomotive) palette — imported from the "Поезд на скролле" design */
  --railway-train-body: var(--color-primary);
  --railway-train-border: #3a3a3a;
  --railway-train-roof: #efe9dd;
  --railway-train-glass: var(--color-accent);
  --railway-train-light: #e9b646;
  --railway-smoke: rgba(120, 114, 104, 0.5);
  position: relative;
  background-color: var(--color-bg);
  padding-block: var(--section-pad);
  overflow: hidden;
}

.railway::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 12% 0%, rgba(200, 146, 42, 0.07), transparent 55%),
    radial-gradient(ellipse at 88% 100%, rgba(26, 26, 26, 0.05), transparent 60%);
  pointer-events: none;
}

.railway__intro {
  position: relative;
  /* Keep the heading/lead above the train layer — the locomotive's start
     position sits slightly above the track and must never cover this text. */
  z-index: 2;
  text-align: center;
  max-width: 760px;
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}

.railway__eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-md);
}

.railway__eyebrow::before {
  content: '— ';
  opacity: 0.6;
}

.railway__title {
  font-size: clamp(2rem, 4.5vw, 3.5rem);
  margin-bottom: var(--space-lg);
}

.railway__lead {
  color: var(--color-muted);
  font-size: clamp(1rem, 1.4vw, 1.15rem);
  max-width: 620px;
  margin-inline: auto;
}

.railway__layout {
  position: relative;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

.railway__rail {
  position: absolute;
  top: 0;
  bottom: 0;
  left: calc(var(--container-pad));
  width: var(--railway-rail-col);
  pointer-events: none;
  z-index: 0;
}

.railway__svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  overflow: visible;
}

/* Locomotive riding the rails — composed from layered elements (body, roof,
   gold glass, headlights, coupler, shadow) rather than a flat image, so it can
   rock and puff smoke. JS moves it with translate3d + rotate (compositor-only,
   no layout) in sync with the rail fill; ScrollTrigger's scrub smooths it.
   .railway__rail is position:absolute, so it establishes the containing block. */
.railway__train {
  position: absolute;
  top: 0;
  /* Horizontally centered between the two rail lines (35% / 65% -> 50%).
     JS overrides this transform with the scroll-driven position + rock. */
  left: 50%;
  width: 46px;
  height: 96px;
  transform: translate3d(-50%, -48px, 0);
  transform-origin: 50% 50%;
  z-index: 2;
  pointer-events: none;
  /* Promote to its own compositor layer once. The per-frame rock is then a
     pure transform (translate + rotate) that re-composites the cached bitmap
     — no repaint, so the wobble stays smooth even while scrolling. */
  will-change: transform;
  backface-visibility: hidden;
}

.railway__train span {
  position: absolute;
}

/* Grounded shadow via box-shadow rather than a blur filter: a filter would
   force the layer to re-rasterize on every rotation frame (the source of the
   scroll jank); a box-shadow bakes into the layer and just transforms with it. */
.railway__train-shadow {
  left: 3px;
  right: 3px;
  top: 8px;
  bottom: 2px;
  border-radius: 14px 14px 22px 22px;
  background: transparent;
  box-shadow: 0 11px 16px -5px rgba(0, 0, 0, 0.4);
}

.railway__train-coupler {
  left: 18px;
  top: -4px;
  width: 10px;
  height: 7px;
  border-radius: 3px;
  background: var(--railway-train-border);
}

.railway__train-body {
  inset: 0;
  border-radius: 13px 13px 22px 22px;
  background: var(--railway-train-body);
  border: 1px solid var(--railway-train-border);
}

.railway__train-roof {
  left: 11px;
  right: 11px;
  top: 12px;
  height: 54px;
  border-radius: 9px;
  background: var(--railway-train-roof);
}

.railway__train-glass {
  left: 12px;
  right: 12px;
  top: 72px;
  height: 15px;
  border-radius: 8px;
  background: var(--railway-train-glass);
  opacity: 0.92;
}

.railway__train-light {
  top: 84px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--railway-train-light);
  box-shadow: 0 0 8px var(--railway-train-light);
}

.railway__train-light--l { left: 8px; }
.railway__train-light--r { right: 8px; }

/* Smoke layer — JS spawns short-lived puffs at the locomotive's rear while it
   moves; each puff drifts up and fades via the railwaySmokeRise keyframe. */
.railway__smoke {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  overflow: visible;
}

.railway__smoke-puff {
  position: absolute;
  left: 50%;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--railway-smoke);
  filter: blur(3px);
  will-change: transform, opacity;
  transform: translate(-50%, 0) scale(0.5);
  animation-name: railwaySmokeRise;
  animation-timing-function: ease-out;
  animation-fill-mode: forwards;
}

@keyframes railwaySmokeRise {
  0%   { transform: translate(-50%, 0) scale(0.5); opacity: 0.5; }
  100% { transform: translate(calc(-50% + var(--dx)), -72px) scale(2.4); opacity: 0; }
}

@media (prefers-reduced-motion: reduce) {
  .railway__smoke { display: none; }
}

.railway__rail-line {
  fill: none;
  stroke-linecap: square;
  vector-effect: non-scaling-stroke;
}

.railway__rail-line--muted {
  stroke: var(--railway-muted);
  stroke-width: 2;
}

.railway__rail-line--active {
  stroke: var(--railway-active);
  stroke-width: 2.5;
  stroke-dasharray: 1;
  stroke-dashoffset: calc(1 - var(--railway-progress));
  /* no filter here: an SVG drop-shadow re-rasterises the full-height rail
     on every scroll frame while --railway-progress is scrubbed */
}

.railway__sleepers-group line {
  stroke-linecap: butt;
  vector-effect: non-scaling-stroke;
}

.railway__sleepers-group--muted line {
  stroke: var(--railway-muted);
  stroke-width: 3;
}

.railway__sleepers-group--active line {
  stroke: var(--color-primary);
  stroke-width: 3.5;
  transform-box: fill-box;
  transform-origin: center;
  opacity: 0;
  transform: scaleX(0);
  transition: opacity 0.18s ease, transform 0.32s cubic-bezier(0.22, 1, 0.36, 1);
}

.railway__sleepers-group--active line.is-laid {
  opacity: 1;
  transform: scaleX(1);
}

.railway__stations {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: clamp(4rem, 10vw, 7rem);
  padding-block: clamp(1.5rem, 3vw, 2.5rem);
  padding-left: calc(var(--railway-rail-col) + clamp(1rem, 4vw, 2.5rem));
}

.railway-station {
  position: relative;
}

.railway-station__marker {
  position: absolute;
  top: 50%;
  left: calc(-1 * (var(--railway-rail-col) / 2 + clamp(1rem, 4vw, 2.5rem)));
  transform: translate(-50%, -50%);
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  pointer-events: none;
  z-index: 2;
}

.railway-station__dot {
  position: relative;
  width: 14px;
  height: 14px;
  background: var(--color-bg);
  border: 2px solid var(--color-accent);
  border-radius: 50%;
  transform: scale(0);
  transition: transform 0.45s cubic-bezier(0.34, 1.56, 0.64, 1), background-color 0.3s ease;
  z-index: 2;
}

.railway-station.is-active .railway-station__dot {
  transform: scale(1);
  background: var(--color-accent);
  box-shadow: 0 0 0 4px rgba(200, 146, 42, 0.18);
}

.railway-station__pulse {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 1.5px solid var(--color-accent);
  opacity: 0;
  transform: scale(0.5);
}

.railway-station.is-active .railway-station__pulse {
  animation: railwayPulse 1.6s ease-out 0.15s 1;
}

@keyframes railwayPulse {
  0%   { opacity: 0.55; transform: scale(0.6); }
  100% { opacity: 0;    transform: scale(2.4); }
}

.railway-station__card {
  position: relative;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: clamp(1.25rem, 2.4vw, 2rem);
  box-shadow: 0 18px 48px -32px rgba(26, 26, 26, 0.4);
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.55s cubic-bezier(0.22, 1, 0.36, 1) 0.05s,
              transform 0.55s cubic-bezier(0.22, 1, 0.36, 1) 0.05s,
              border-color 0.3s ease;
  max-width: 560px;
}

.railway-station__card::before {
  content: '';
  position: absolute;
  top: 50%;
  left: -1px;
  width: 3px;
  height: 36px;
  background: var(--color-accent);
  border-radius: 2px;
  transform: translateY(-50%) scaleY(0);
  transform-origin: center;
  transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1) 0.2s;
}

.railway-station.is-active .railway-station__card {
  opacity: 1;
  transform: translateY(0);
  border-color: rgba(200, 146, 42, 0.35);
}

.railway-station.is-active .railway-station__card::before {
  transform: translateY(-50%) scaleY(1);
}

.railway-station__num {
  display: block;
  font-size: 0.85rem;
  letter-spacing: 0.15em;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
  font-weight: 700;
}

.railway-station__title {
  font-size: clamp(1.4rem, 2.2vw, 1.9rem);
  margin-bottom: var(--space-sm);
}

.railway-station__desc {
  color: var(--color-muted);
  font-size: clamp(0.95rem, 1.15vw, 1.05rem);
  line-height: 1.6;
}

/* Wide-screen: rail centered, cards alternate left/right */
@media (min-width: 960px) {
  .railway__rail {
    left: 50%;
    transform: translateX(-50%);
  }
  .railway__stations {
    padding-left: 0;
    row-gap: clamp(4rem, 10vw, 8rem);
  }
  .railway-station {
    width: 100%;
    display: grid;
    grid-template-columns: minmax(0, 1fr) var(--railway-rail-col) minmax(0, 1fr);
    column-gap: clamp(1.5rem, 4vw, 4rem);
    align-items: center;
  }
  .railway-station__card {
    max-width: none;
  }
  .railway-station:nth-child(odd) .railway-station__card {
    grid-column: 1;
    text-align: right;
    transform: translate(28px, 0);
  }
  .railway-station:nth-child(odd) .railway-station__card::before {
    left: auto;
    right: -1px;
  }
  .railway-station:nth-child(even) .railway-station__card {
    grid-column: 3;
    transform: translate(-28px, 0);
  }
  .railway-station.is-active .railway-station__card {
    transform: translate(0, 0);
  }
  .railway-station__marker {
    position: relative;
    inset: auto;
    left: auto;
    top: auto;
    transform: none;
    grid-column: 2;
    justify-self: center;
    align-self: center;
  }
}

@media (max-width: 540px) {
  .railway {
    --railway-rail-col: 56px;
    --railway-sleeper-gap: 22px;
  }
  .railway-station__marker {
    left: calc(-1 * clamp(0.75rem, 4vw, 2rem) - var(--railway-rail-col) / 2);
  }
}

@media (prefers-reduced-motion: reduce) {
  .railway {
    --railway-progress: 1;
  }
  .railway-station,
  .railway-station__card,
  .railway-station__dot {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
  .railway-station__card::before {
    transform: translateY(-50%) scaleY(1) !important;
  }
  .railway__sleepers-group--active line {
    opacity: 1 !important;
    transform: scaleX(1) !important;
  }
  .railway-station__pulse {
    animation: none !important;
  }
}

/* ============================================
   METRO SERVICES — interactive route scheme
   ============================================ */

.metro {
  --metro-progress: 0;
  --metro-muted: rgba(255, 255, 255, 0.14);
  --metro-active: var(--color-accent);
  --metro-surface: #161616;
  --metro-bg: var(--color-dark);
  position: relative;
  background: var(--metro-bg);
  color: var(--color-surface);
  padding-block: var(--section-pad);
  overflow: hidden;
}

.metro::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 12% 18%, rgba(200, 146, 42, 0.10), transparent 45%),
    radial-gradient(circle at 88% 82%, rgba(200, 146, 42, 0.05), transparent 50%),
    linear-gradient(180deg, rgba(255,255,255,0.015), rgba(0,0,0,0.06));
  pointer-events: none;
}

.metro__head {
  position: relative;
  text-align: center;
  max-width: 760px;
  margin-bottom: clamp(2.5rem, 6vw, 5rem);
}

.metro__eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-md);
}

.metro__eyebrow::before {
  content: '— ';
  opacity: 0.6;
}

.metro__title {
  font-size: clamp(2rem, 4.5vw, 3.5rem);
  color: var(--color-surface);
  margin-bottom: var(--space-lg);
}

.metro__lead {
  color: rgba(255, 255, 255, 0.65);
  font-size: clamp(0.95rem, 1.2vw, 1.05rem);
  max-width: 560px;
  margin-inline: auto;
}

.metro__board {
  position: relative;
}

/* --- ROUTE --- */

.metro-route {
  position: relative;
  aspect-ratio: 1200 / 320;
  width: 100%;
  margin-bottom: clamp(2rem, 5vw, 4rem);
}

.metro-route__svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  overflow: visible;
}

.metro-route__path {
  fill: none;
  stroke-linejoin: round;
  stroke-linecap: round;
}

.metro-route__path--muted {
  stroke: var(--metro-muted);
  stroke-width: 4;
}

.metro-route__path--active {
  stroke: var(--metro-active);
  stroke-width: 5;
  stroke-dasharray: 1;
  stroke-dashoffset: calc(1 - var(--metro-progress));
  filter: drop-shadow(0 0 6px rgba(200, 146, 42, 0.45));
}

.metro-route__ring {
  fill: var(--metro-bg);
  stroke: rgba(255, 255, 255, 0.4);
  stroke-width: 2.5;
  transition: stroke 0.35s ease, r 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.metro-route__core {
  fill: rgba(255, 255, 255, 0.5);
  transition: fill 0.35s ease, r 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.metro-route__node.is-active .metro-route__ring {
  stroke: var(--metro-active);
  r: 18;
}

.metro-route__node.is-active .metro-route__core {
  fill: var(--metro-active);
}

.metro-route__train {
  fill: var(--metro-active);
  stroke: var(--color-surface);
  stroke-width: 2;
  filter: drop-shadow(0 0 10px rgba(200, 146, 42, 0.6));
  pointer-events: none;
}

/* --- BUTTONS (HTML overlay for keyboard a11y) --- */

.metro-route__buttons {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.metro-btn {
  position: absolute;
  left: var(--metro-x);
  top: var(--metro-y);
  transform: translate(-50%, -50%);
  width: 48px;
  height: 48px;
  background: transparent;
  border: 0;
  padding: 0;
  border-radius: 50%;
  color: rgba(255, 255, 255, 0.75);
  font: inherit;
  cursor: pointer;
  pointer-events: auto;
}

.metro-btn:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 6px;
}

.metro-btn__label-wrap {
  position: absolute;
  left: 50%;
  bottom: calc(100% + 14px);
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  white-space: nowrap;
  pointer-events: none;
  transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}

.metro-btn__index {
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  color: var(--color-accent);
  opacity: 0;
  transform: translateY(3px);
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.metro-btn__name {
  font-size: clamp(0.78rem, 1vw, 0.92rem);
  font-weight: 600;
  letter-spacing: 0.01em;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.45);
  transition: color 0.25s ease;
}

.metro-btn:hover .metro-btn__name {
  color: var(--color-surface);
}

.metro-btn:hover .metro-btn__index {
  opacity: 0.85;
  transform: translateY(0);
}

.metro-btn.is-active .metro-btn__label-wrap {
  transform: translate(-50%, -4px);
}

.metro-btn.is-active .metro-btn__name {
  color: var(--color-surface);
}

.metro-btn.is-active .metro-btn__index {
  opacity: 1;
  transform: translateY(0);
}

/* --- ONBOARDING HINT — figure above the next station --- */

.metro-hint {
  position: absolute;
  /* left/top are set by JS from the target button's --metro-x / --metro-y */
  transform: translate(-50%, calc(-100% - clamp(2.75rem, 5vw, 3.5rem)));
  pointer-events: none;
  z-index: 3;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.45s ease, visibility 0.45s ease,
              left 0.6s cubic-bezier(0.22, 1, 0.36, 1),
              top 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}

.metro-hint.is-visible {
  opacity: 1;
  visibility: visible;
}

.metro-hint__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  animation: metroHintBob 1.5s ease-in-out infinite;
}

.metro-hint__figure {
  width: 17px;
  height: auto;
  fill: var(--color-accent);
  filter: drop-shadow(0 0 6px rgba(200, 146, 42, 0.5));
}

.metro-hint__chevron {
  width: 10px;
  height: auto;
  stroke: var(--color-accent);
  opacity: 0.85;
}

@keyframes metroHintBob {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-6px); }
}

@media (max-width: 720px) {
  .metro-hint__figure { width: 14px; }
  .metro-hint__chevron { width: 8px; }
}

/* --- PANELS --- */

.metro-panels {
  position: relative;
  display: grid;
  max-width: 760px;
  margin-inline: auto;
}

.metro-panel {
  grid-area: 1 / 1;
  background: var(--metro-surface);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-lg);
  padding: clamp(1.75rem, 3vw, 2.5rem);
  opacity: 0;
  transform: translateY(16px);
  pointer-events: none;
  transition: opacity 0.45s cubic-bezier(0.22, 1, 0.36, 1),
              transform 0.45s cubic-bezier(0.22, 1, 0.36, 1);
  position: relative;
  overflow: hidden;
}

.metro-panel[hidden] {
  display: grid;
}

.metro-panel::before {
  content: '';
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: var(--color-accent);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 0.55s cubic-bezier(0.22, 1, 0.36, 1) 0.1s;
}

.metro-panel.is-active {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
  z-index: 1;
}

.metro-panel.is-active::before {
  transform: scaleY(1);
}

.metro-panel__num {
  display: inline-block;
  font-size: 0.75rem;
  letter-spacing: 0.22em;
  color: var(--color-accent);
  margin-bottom: var(--space-md);
}

.metro-panel__title {
  font-size: clamp(1.5rem, 2.4vw, 2.1rem);
  color: var(--color-surface);
  margin-bottom: var(--space-md);
}

.metro-panel__desc {
  color: rgba(255, 255, 255, 0.7);
  font-size: clamp(0.95rem, 1.15vw, 1.05rem);
  line-height: 1.65;
  margin-bottom: var(--space-lg);
}

.metro-panel__tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
}

.metro-panel__tags li {
  display: inline-flex;
  align-items: center;
  padding: 6px 12px;
  background: rgba(200, 146, 42, 0.08);
  border: 1px solid rgba(200, 146, 42, 0.25);
  border-radius: 999px;
  font-size: 0.78rem;
  letter-spacing: 0.05em;
  color: rgba(255, 255, 255, 0.85);
}

/* --- RESPONSIVE --- */

@media (max-width: 720px) {
  .metro-route {
    aspect-ratio: 1200 / 360;
  }
  .metro-btn__name {
    font-size: 0.72rem;
  }
  .metro-btn__label-wrap {
    bottom: calc(100% + 8px);
  }
  .metro-btn__index { display: none; }
}

@media (max-width: 480px) {
  .metro-route {
    aspect-ratio: 1200 / 440;
  }
  /* Let long station names wrap so neighbouring labels don't collide */
  .metro-btn__label-wrap {
    white-space: normal;
    width: 76px;
  }
  .metro-btn__name {
    font-size: 0.64rem;
    letter-spacing: -0.005em;
    line-height: 1.25;
    text-align: center;
  }
  /* Keep edge labels inside the viewport */
  .metro-btn[data-metro-btn="0"] .metro-btn__label-wrap {
    transform: translateX(-15%);
  }
  .metro-btn[data-metro-btn="0"].is-active .metro-btn__label-wrap {
    transform: translate(-15%, -4px);
  }
  .metro-btn[data-metro-btn="4"] .metro-btn__label-wrap {
    transform: translateX(-85%);
  }
  .metro-btn[data-metro-btn="4"].is-active .metro-btn__label-wrap {
    transform: translate(-85%, -4px);
  }
}

/* --- REDUCED MOTION --- */

@media (prefers-reduced-motion: reduce) {
  .metro-route__path--active,
  .metro-route__ring,
  .metro-route__core,
  .metro-route__train,
  .metro-btn,
  .metro-btn__index,
  .metro-panel,
  .metro-panel::before,
  .metro-hint {
    transition: none !important;
  }

  .metro-hint__inner {
    animation: none !important;
  }
}