/* ─── Variables ────────────────────────────────────────────────────────────── */
:root {
  --c-bg:          #0d1117;
  --c-surface:     #161b22;
  --c-surface-2:   #21262d;
  --c-accent:      #f5a623;
  --c-accent-dark: #d4891a;
  --c-text:        #e6edf3;
  --c-muted:       #8b949e;
  --c-border:      #30363d;
  --c-white:       #ffffff;
  --c-black:       #000000;

  --font:          'Segoe UI', system-ui, -apple-system, Arial, sans-serif;
  --radius:        8px;
  --radius-lg:     16px;
  --transition:    0.28s ease;
  --header-h:      68px;
  --section-py:    88px;
  --container-max: 1200px;
  --container-px:  24px;
}

/* ─── Reset ────────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font);
  background: var(--c-bg);
  color: var(--c-text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; }
a { color: inherit; }
button { font-family: inherit; }

/* ─── Utilities ────────────────────────────────────────────────────────────── */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-px);
}

.section-header {
  text-align: center;
  margin-bottom: 56px;
}
.section-label {
  display: inline-block;
  color: var(--c-accent);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  margin-bottom: 12px;
}
.section-title {
  font-size: clamp(1.75rem, 4vw, 2.6rem);
  font-weight: 800;
  color: var(--c-text);
  line-height: 1.15;
}
.section-subtitle {
  margin-top: 14px;
  color: var(--c-muted);
  font-size: 1.05rem;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border: 2px solid transparent;
  transition: var(--transition);
  white-space: nowrap;
}
.btn-primary {
  background: var(--c-accent);
  color: var(--c-black);
  border-color: var(--c-accent);
}
.btn-primary:hover {
  background: var(--c-accent-dark);
  border-color: var(--c-accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(245, 166, 35, 0.25);
}
.btn-outline {
  background: transparent;
  color: var(--c-text);
  border-color: var(--c-border);
}
.btn-outline:hover {
  border-color: var(--c-accent);
  color: var(--c-accent);
}

/* fade-in */
.fade-in {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ─── Header ───────────────────────────────────────────────────────────────── */
#header {
  position: fixed;
  top: 0;
  inset-inline: 0;
  height: var(--header-h);
  z-index: 900;
  background: rgba(13, 17, 23, 0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), background var(--transition);
}
#header.scrolled {
  background: rgba(13, 17, 23, 0.97);
  border-bottom-color: var(--c-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.header-logo {
  text-decoration: none;
}
.header-logo__main {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--c-text);
  letter-spacing: 0.01em;
}
.header-logo__sub {
  font-size: 0.65rem;
  font-weight: 500;
  color: var(--c-accent);
  text-transform: uppercase;
  letter-spacing: 0.14em;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}
#nav-links {
  display: flex;
  gap: 4px;
  list-style: none;
  justify-content: center;
  align-items: center;
}

.nav-link {
  display: block;
  padding: 7px 14px;
  border-radius: 6px;
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--c-muted);
  transition: color var(--transition), background var(--transition);
  text-align: center;
}

.nav-link:hover,
.nav-link.active {
  color: var(--c-text);
  background: rgba(255, 255, 255, 0.06);
}
.nav-link.active {
  color: var(--c-accent);
}

#nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  border-radius: var(--radius);
  transition: background var(--transition);
  padding: 0;
}
#nav-hamburger:hover { background: rgba(255,255,255,0.06); }
#nav-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--c-text);
  border-radius: 2px;
  transition: var(--transition);
  transform-origin: center;
}
#nav-hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
#nav-hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
#nav-hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 768px) {
  .header-logo__main { font-size: 0.95rem; }
  .header-logo__sub { display: none; }
  .header-logo__icon { width: 30px; height: 30px; }

  #nav-hamburger { display: flex; }
  #nav-links {
    position: fixed;
    top: var(--header-h);
    inset-inline: 0;
    background: var(--c-surface);
    flex-direction: column;
    padding: 20px var(--container-px) 28px;
    gap: 4px;
    border-bottom: 1px solid var(--c-border);
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
  }
  #nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .nav-link {
    padding: 10px 14px;
    font-size: 1rem;
  }
}

/* ─── Language switcher ─────────────────────────────────────────────────────── */
.nav-lang-item {
  display: flex;
  align-items: center;
  margin-left: 8px;
  list-style: none;
}
.lang-switcher {
  display: flex;
  gap: 2px;
  background: rgba(255, 255, 255, 0.07);
  border-radius: 7px;
  padding: 3px;
}
.lang-btn {
  background: none;
  border: none;
  color: var(--c-muted);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  padding: 4px 9px;
  border-radius: 5px;
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
  line-height: 1;
}
.lang-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--c-text);
}
.lang-btn.active {
  background: var(--c-accent);
  color: #000;
}

@media (max-width: 768px) {
  .nav-lang-item {
    margin-left: 0;
    margin-top: 16px;
    padding-top: 20px;
    border-top: 1px solid var(--c-border);
    width: 100%;
    justify-content: center;
  }
  .lang-btn { padding: 6px 14px; font-size: 0.8rem; }
}

/* ─── Hero ─────────────────────────────────────────────────────────────────── */
#hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding-top: var(--header-h);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}
.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(to right, rgba(13,17,23,0.88) 50%, rgba(13,17,23,0.35) 100%),
    linear-gradient(to top, rgba(13,17,23,0.9) 0%, transparent 60%);
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
  padding-top: 60px;
  padding-bottom: 60px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(245, 166, 35, 0.12);
  border: 1px solid rgba(245, 166, 35, 0.35);
  border-radius: 100px;
  padding: 6px 16px 6px 12px;
  color: var(--c-accent);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.13em;
  margin-bottom: 24px;
}
.hero-badge__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--c-accent);
  animation: dot-pulse 2s ease-in-out infinite;
}
@keyframes dot-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.45; transform: scale(0.75); }
}

.hero-title {
  font-size: clamp(1rem, 4vw, 5.2rem);
  font-weight: 900;
  color: var(--c-white);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin-bottom: 6px;
}
.hero-company {
  font-size: clamp(0.95rem, 1.5vw, 1.2rem);
  color: var(--c-accent);
  font-weight: 500;
  margin-bottom: 22px;
  opacity: 0.9;
}
.hero-desc {
  font-size: clamp(1rem, 1.3vw, 1.15rem);
  color: rgba(230, 237, 243, 0.78);
  line-height: 1.7;
  margin-bottom: 40px;
  max-width: 500px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

/* ─── About ────────────────────────────────────────────────────────────────── */
#about {
  padding: var(--section-py) 0;
  background: var(--c-surface);
}

.about-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.about-text {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.about-text p {
  color: var(--c-muted);
  font-size: 1.05rem;
  line-height: 1.8;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 36px;
}
.stat-card {
  background: var(--c-surface-2);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: 20px 16px;
  text-align: center;
  transition: border-color var(--transition);
}
.stat-card:hover { border-color: var(--c-accent); }
.stat-value {
  font-size: 1.9rem;
  font-weight: 800;
  color: var(--c-accent);
  line-height: 1;
}
.stat-label {
  font-size: 0.78rem;
  color: var(--c-muted);
  margin-top: 6px;
  line-height: 1.3;
}

.about-visual {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 210px 210px;
  gap: 10px;
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.about-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.about-visual img:hover { transform: scale(1.03); }
.about-visual img:first-child { grid-row: span 2; }

@media (max-width: 900px) {
  .about-inner { grid-template-columns: 1fr; }
  .about-visual { display: none; }
}

/* ─── Services ─────────────────────────────────────────────────────────────── */
#services {
  padding: var(--section-py) 0;
  background: var(--c-bg);
}

#services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.service-card {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: 32px 26px;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}
.service-card:hover {
  border-color: var(--c-accent);
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.28);
}
.service-card__num {
  font-size: 2.8rem;
  font-weight: 900;
  color: rgba(245, 166, 35, 0.18);
  line-height: 1;
  margin-bottom: 18px;
  font-variant-numeric: tabular-nums;
}
.service-card__title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--c-text);
  margin-bottom: 10px;
}
.service-card__desc {
  font-size: 0.88rem;
  color: var(--c-muted);
  line-height: 1.65;
}

@media (max-width: 992px) {
  #services-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 540px) {
  #services-grid { grid-template-columns: 1fr; }
}

/* ─── Railway ──────────────────────────────────────────────────────────────── */
#railway {
  padding: var(--section-py) 0;
  background: var(--c-surface);
}

.railway-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: start;
}

.railway-desc {
  color: var(--c-muted);
  font-size: 1.05rem;
  line-height: 1.8;
  margin-bottom: 28px;
}

.railway-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 32px;
}
.railway-feature {
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding: 16px 18px;
  background: var(--c-surface-2);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  border-left: 3px solid var(--c-accent);
}
.railway-feature__title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--c-text);
}
.railway-feature__desc {
  font-size: 0.85rem;
  color: var(--c-muted);
  line-height: 1.5;
}

.railway-images {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.railway-img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--radius-lg);
  border: 1px solid var(--c-border);
  transition: transform 0.4s ease;
}
.railway-img:hover { transform: scale(1.02); }

@media (max-width: 900px) {
  .railway-inner { grid-template-columns: 1fr; }
  .railway-images { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 480px) {
  .railway-images { grid-template-columns: 1fr; }
}

/* ─── Projects ─────────────────────────────────────────────────────────────── */
#projects {
  padding: var(--section-py) 0;
  background: var(--c-bg);
}

#projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.project-card {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
  outline: none;
  display: flex;
  flex-direction: column;
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}
.project-card:hover {
  border-color: var(--c-accent);
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(0,0,0,0.3);
}
.project-card:focus-visible {
  box-shadow: 0 0 0 3px var(--c-accent);
}

.project-card__img-wrap {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  flex-shrink: 0;
}
.project-card__img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.45s ease;
}
.project-card:hover .project-card__img-wrap img,
.project-card:focus-visible .project-card__img-wrap img {
  transform: scale(1.06);
}
.project-card__view-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  background: var(--c-accent);
  color: var(--c-black);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 5px 12px;
  border-radius: 100px;
  opacity: 0;
  transform: translateY(-4px);
  transition: opacity var(--transition), transform var(--transition);
}
.project-card:hover .project-card__view-badge,
.project-card:focus-visible .project-card__view-badge {
  opacity: 1;
  transform: translateY(0);
}

.project-card__body {
  padding: 18px 20px;
  display: flex;
  flex-direction: column;
  gap: 5px;
  flex: 1;
}
.project-card__name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--c-text);
  line-height: 1.3;
}
.project-card__address {
  font-size: 0.78rem;
  color: var(--c-accent);
  font-weight: 500;
}
.project-card__desc {
  font-size: 0.84rem;
  color: var(--c-muted);
  line-height: 1.55;
  margin-top: 2px;
  flex: 1;
}
.project-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--c-border);
}
.project-card__count {
  font-size: 0.78rem;
  color: var(--c-muted);
}
.project-card__view-link {
  font-size: 0.78rem;
  color: var(--c-accent);
  font-weight: 600;
}

@media (max-width: 900px) {
  #projects-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 540px) {
  #projects-grid { grid-template-columns: 1fr; }
}

/* ─── Lightbox ─────────────────────────────────────────────────────────────── */
#lightbox {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(5, 8, 13, 0.97);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  padding: 16px;
}
#lightbox[hidden] { display: none; }

.lb-top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: 920px;
  gap: 16px;
}
.lb-title-group {
  display: flex;
  align-items: center;
  gap: 12px;
}
#lb-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--c-text);
}
#lb-counter {
  font-size: 0.85rem;
  color: var(--c-muted);
}
#lb-close {
  background: rgba(255,255,255,0.1);
  border: none;
  color: var(--c-text);
  font-size: 1.3rem;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition);
  flex-shrink: 0;
  line-height: 1;
}
#lb-close:hover { background: rgba(255,255,255,0.2); }

.lb-main {
  display: flex;
  align-items: center;
  gap: 14px;
  max-width: 100%;
}
#lb-img {
  max-width: min(860px, 88vw);
  max-height: 62vh;
  object-fit: contain;
  border-radius: var(--radius);
  display: block;
}
.lb-nav {
  background: rgba(255,255,255,0.1);
  border: none;
  color: var(--c-text);
  font-size: 1.6rem;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition);
  flex-shrink: 0;
}
.lb-nav:hover { background: rgba(255,255,255,0.2); }

#lb-thumbs {
  display: flex;
  gap: 8px;
  max-width: min(860px, 90vw);
  overflow-x: auto;
  padding: 4px 0 8px;
  scrollbar-width: thin;
}
#lb-thumbs::-webkit-scrollbar { height: 4px; }
#lb-thumbs::-webkit-scrollbar-track { background: transparent; }
#lb-thumbs::-webkit-scrollbar-thumb { background: var(--c-border); border-radius: 2px; }

.lb-thumb {
  width: 62px;
  height: 50px;
  object-fit: cover;
  border-radius: 5px;
  cursor: pointer;
  opacity: 0.45;
  border: 2px solid transparent;
  transition: opacity var(--transition), border-color var(--transition);
  flex-shrink: 0;
}
.lb-thumb.active,
.lb-thumb:hover {
  opacity: 1;
  border-color: var(--c-accent);
}

@media (max-width: 600px) {
  .lb-nav { display: none; }
  #lb-img { max-height: 52vh; }
}

/* ─── Tariffs ──────────────────────────────────────────────────────────────── */
#tariffs {
  padding: var(--section-py) 0;
  background: var(--c-bg);
}

#tariffs-list {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.tariff-card {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.tariff-card__embed-wrap {
  width: 100%;
  height: 560px;
  background: var(--c-surface-2);
  overflow: hidden;
}
.tariff-card__embed {
  width: 100%;
  height: 100%;
  border: none;
  display: block;
}
.tariff-card__fallback {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 16px;
  color: var(--c-muted);
  font-size: 0.95rem;
}
.tariff-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 24px 28px;
  flex-wrap: wrap;
  border-top: 1px solid var(--c-border);
}
.tariff-card__title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--c-text);
}
.tariff-card__desc {
  font-size: 0.85rem;
  color: var(--c-muted);
  margin-top: 3px;
}
.tariff-card__actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

@media (max-width: 600px) {
  .tariff-card__embed-wrap { height: 380px; }
  .tariff-card__footer { flex-direction: column; align-items: flex-start; }
}

/* ─── Report ───────────────────────────────────────────────────────────────── */
#report {
  padding: var(--section-py) 0;
  background: var(--c-surface);
}

#report-list {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 36px;
}

.report-group__header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 12px;
}
.report-group__year {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--c-accent);
  flex-shrink: 0;
  line-height: 1;
}
.report-group__line {
  flex: 1;
  height: 1px;
  background: var(--c-border);
}

.report-doc-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.report-doc-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 18px;
  background: var(--c-surface-2);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  transition: border-color var(--transition);
}
.report-doc-item:hover { border-color: var(--c-accent); }
.report-doc__icon {
  color: var(--c-accent);
  flex-shrink: 0;
  display: flex;
}
.report-doc__label {
  flex: 1;
  font-size: 0.95rem;
  color: var(--c-text);
  line-height: 1.4;
}
.report-doc__actions {
  display: flex;
  gap: 8px;
  flex-shrink: 0;
}

.btn-sm {
  padding: 7px 14px;
  font-size: 0.8rem;
}

@media (max-width: 600px) {
  .report-doc-item { flex-wrap: wrap; }
  .report-doc__actions { width: 100%; justify-content: flex-end; }
}

/* ─── Contacts ─────────────────────────────────────────────────────────────── */
#contacts {
  padding: var(--section-py) 0;
  background: var(--c-surface);
}

.contacts-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: start;
}

.contacts-info {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.contact-item__label {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--c-accent);
  margin-bottom: 6px;
}
.contact-item__value {
  font-size: 1rem;
  color: var(--c-text);
}
a.contact-item__value:hover { color: var(--c-accent); }

.contact-address-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

#phones-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.phone-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 16px 18px;
  background: var(--c-surface-2);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  flex-wrap: wrap;
  transition: border-color var(--transition);
}
.phone-item:hover { border-color: var(--c-accent); }
.phone-item__info {
  display: flex;
  flex-direction: column;
  gap: 3px;
}
.phone-item__label {
  font-size: 0.75rem;
  color: var(--c-muted);
  font-weight: 500;
}
.phone-item__number {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--c-text);
  text-decoration: none;
  transition: color var(--transition);
}
.phone-item__number:hover { color: var(--c-accent); }
.phone-item__actions {
  display: flex;
  gap: 8px;
}

.phone-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 8px 14px;
  border-radius: var(--radius);
  font-size: 0.8rem;
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition);
}
.phone-btn--call {
  background: var(--c-accent);
  color: var(--c-black);
}
.phone-btn--call:hover {
  background: var(--c-accent-dark);
  transform: translateY(-1px);
}
.phone-btn--wa {
  background: #25D366;
  color: var(--c-white);
}
.phone-btn--wa:hover {
  background: #1daa4e;
  transform: translateY(-1px);
}

.contacts-map {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--c-border);
  height: 380px;
  background: var(--c-surface-2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--c-muted);
  font-size: 0.9rem;
  text-align: center;
  gap: 8px;
  flex-direction: column;
}

@media (max-width: 900px) {
  .contacts-grid { grid-template-columns: 1fr; }
  .contacts-map { height: 280px; }
}

/* ─── Footer ───────────────────────────────────────────────────────────────── */
footer {
  background: var(--c-bg);
  border-top: 1px solid var(--c-border);
  padding: 28px 0;
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 14px;
}
.footer-brand {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--c-text);
}
.footer-sub {
  font-size: 0.78rem;
  color: var(--c-muted);
  margin-top: 2px;
}
.footer-copy {
  font-size: 0.82rem;
  color: var(--c-muted);
  text-align: right;
}

/* ─── Header logo icon ─────────────────────────────────────────────────────── */
.header-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}
.header-logo__icon {
  width: 36px;
  height: 36px;
  object-fit: contain;
  flex-shrink: 0;
}
.header-logo > div {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

/* ─── About highlights ─────────────────────────────────────────────────────── */
.about-highlights {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin: 20px 0 0;
}
.about-highlight {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--c-muted);
  line-height: 1.5;
}
.about-highlight__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--c-accent);
  flex-shrink: 0;
  margin-top: 6px;
}

/* ─── Infrastructure ───────────────────────────────────────────────────────── */
#infrastructure {
  padding: var(--section-py) 0;
  background: var(--c-bg);
}

.infra-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
  margin-bottom: 72px;
}
.infra-block--reverse .infra-text { order: 2; }
.infra-block--reverse .infra-photo-stack { order: 1; }

.infra-text__title {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--c-text);
  margin-bottom: 16px;
}
.infra-text__desc {
  font-size: 0.95rem;
  color: var(--c-muted);
  line-height: 1.8;
}

/* Stacked photo collage */
.infra-photo-stack {
  position: relative;
  height: 380px;
}
.infra-photo-stack img {
  position: absolute;
  object-fit: cover;
  border-radius: var(--radius-lg);
  border: 2px solid var(--c-border);
  transition: transform 0.4s ease, z-index 0s;
}
.infra-photo-stack img:nth-child(1) {
  width: 68%; height: 55%;
  top: 0; left: 0;
  transform: rotate(-2deg);
  z-index: 1;
}
.infra-photo-stack img:nth-child(2) {
  width: 60%; height: 50%;
  top: 20%; right: 0;
  transform: rotate(1.5deg);
  z-index: 2;
}
.infra-photo-stack img:nth-child(3) {
  width: 55%; height: 44%;
  bottom: 0; left: 12%;
  transform: rotate(-1deg);
  z-index: 3;
}
.infra-photo-stack img:nth-child(4) {
  width: 42%; height: 36%;
  bottom: 8%; right: 4%;
  transform: rotate(2deg);
  z-index: 4;
}
.infra-photo-stack img:hover {
  z-index: 10;
  transform: rotate(0deg) scale(1.04);
}

/* Equipment strip */
.infra-equipment-row {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 12px;
  margin-bottom: 72px;
}
.infra-equip-card {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color var(--transition);
}
.infra-equip-card:hover { border-color: var(--c-accent); }
.infra-equip-card img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  display: block;
}
.infra-equip-card__caption {
  font-size: 0.72rem;
  color: var(--c-muted);
  padding: 8px 10px;
  line-height: 1.3;
  text-align: center;
}

@media (max-width: 900px) {
  .infra-block { grid-template-columns: 1fr; gap: 32px; }
  .infra-block--reverse .infra-text { order: 0; }
  .infra-block--reverse .infra-photo-stack { order: 0; }
  .infra-photo-stack { height: 280px; }
  .infra-equipment-row { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 540px) {
  .infra-equipment-row { grid-template-columns: repeat(2, 1fr); }
  .infra-photo-stack { height: 220px; }
}

/* ─── License ──────────────────────────────────────────────────────────────── */
#license {
  padding: var(--section-py) 0;
  background: var(--c-surface);
}

.license-layout {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 48px;
  align-items: start;
}

.license-main-label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--c-accent);
  margin-bottom: 12px;
}
.license-main-img {
  width: 100%;
  border-radius: var(--radius-lg);
  border: 1px solid var(--c-border);
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.5);
  display: block;
  transition: transform 0.4s ease;
  cursor: pointer;
}
.license-main-img:hover { transform: scale(1.02); }

.license-desc {
  font-size: 0.95rem;
  color: var(--c-muted);
  line-height: 1.8;
  margin-bottom: 28px;
}
.license-appendices-label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--c-accent);
  margin-bottom: 12px;
}
.license-appendices {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}
.license-appendix {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--c-border);
  transition: border-color var(--transition), transform var(--transition);
  cursor: pointer;
}
.license-appendix:hover {
  border-color: var(--c-accent);
  transform: translateY(-2px);
}
.license-appendix img {
  width: 100%;
  aspect-ratio: 3/4;
  object-fit: cover;
  display: block;
}

@media (max-width: 768px) {
  .license-layout { grid-template-columns: 1fr; }
  .license-appendices { grid-template-columns: repeat(3, 1fr); }
}

/* ─── Rewards carousel ─────────────────────────────────────────────────────── */
#rewards {
  padding: var(--section-py) 0;
  background: var(--c-bg);
}
#rewards .container { margin-bottom: 40px; }

.rewards-carousel {
  overflow: hidden;
  mask-image: linear-gradient(to right, transparent 0%, black 8%, black 92%, transparent 100%);
  -webkit-mask-image: linear-gradient(to right, transparent 0%, black 8%, black 92%, transparent 100%);
}
.rewards-track {
  display: flex;
  gap: 20px;
  width: max-content;
  animation: rewards-scroll 80s linear infinite;
  padding: 8px 0 16px;
}
.rewards-track:hover { animation-play-state: paused; }

@keyframes rewards-scroll {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

.reward-item {
  flex-shrink: 0;
  width: 180px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}
.reward-item img {
  width: 100%;
  height: 240px;
  object-fit: contain;
  border-radius: var(--radius);
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  padding: 10px;
  cursor: pointer;
  transition: border-color var(--transition), transform var(--transition);
}
.reward-item img:hover {
  border-color: var(--c-accent);
  transform: translateY(-4px);
}
.reward-item__label {
  font-size: 0.72rem;
  color: var(--c-muted);
  text-align: center;
  line-height: 1.4;
  max-width: 160px;
}

/* ─── Scrollbar ────────────────────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--c-bg); }
::-webkit-scrollbar-thumb { background: var(--c-border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--c-muted); }

/* ─── Hero: responsive font (covers 480–768px where the base clamp hits 2.6rem min) */
@media (max-width: 768px) {
  .hero-title { font-size: clamp(1.2rem, 6vw, 2.2rem); }
  .hero-desc  { font-size: clamp(0.88rem, 3vw, 1rem); }
}

/* ─── Media: mobile ────────────────────────────────────────────────────────── */
@media (max-width: 480px) {
  :root { --section-py: 56px; }

  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; }

  .about-text p { padding-right: 12px; }

  .about-stats { grid-template-columns: repeat(3, 1fr); }
  .stat-card   { padding: 12px 8px; }
  .stat-value  { font-size: 1.35rem; }
  .stat-label  { font-size: 0.63rem; }

  .tariff-card__footer { padding: 18px; }
}