:root {
  --railco-navy: #06182d;
  --railco-navy-2: #0b2340;
  --railco-navy-3: #102f51;
  --railco-orange: #f28a25;
  --railco-orange-2: #d86d13;
  --railco-ink: #142033;
  --railco-muted: #5d6b7d;
  --railco-line: #dce3ec;
  --railco-bg: #f6f8fb;
  --railco-ivory: #fff9f0;
  --railco-white: #ffffff;
  --railco-shadow: 0 24px 70px rgba(6, 24, 45, 0.16);
  --railco-radius: 8px;
  --railco-container: min(1180px, calc(100% - 32px));
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  margin: 0;
  direction: rtl;
  color: var(--railco-ink);
  background: var(--railco-bg);
  font-family: "Vazirmatn", Tahoma, Arial, sans-serif;
  line-height: 1.85;
  text-align: right;
  overflow-x: hidden;
}

body.nav-open {
  overflow: hidden;
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

svg {
  width: 1.25em;
  height: 1.25em;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

button,
input,
textarea {
  font: inherit;
}

:focus-visible {
  outline: 3px solid rgba(242, 138, 37, 0.45);
  outline-offset: 3px;
}

.container {
  width: var(--railco-container);
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  inset-block-start: 12px;
  inset-inline-start: 12px;
  z-index: 1000;
  padding: 10px 16px;
  color: var(--railco-white);
  background: var(--railco-orange-2);
  border-radius: var(--railco-radius);
  transform: translateY(-140%);
  transition: transform 180ms ease;
}

.skip-link:focus {
  transform: translateY(0);
}

.top-strip {
  color: rgba(255, 255, 255, 0.78);
  background: #041326;
  font-size: 0.86rem;
}

.top-strip__inner {
  display: flex;
  justify-content: flex-start;
  gap: 24px;
  padding-block: 7px;
}

.site-header {
  position: sticky;
  inset-block-start: 0;
  z-index: 100;
  color: var(--railco-white);
  background: rgba(6, 24, 45, 0.94);
  border-block-end: 1px solid rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(18px);
}

.nav-shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  min-height: 76px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex: 0 0 auto;
}

.brand__mark {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  color: var(--railco-navy);
  background: linear-gradient(135deg, #f9a64a, var(--railco-orange));
  border-radius: 6px;
  font-weight: 900;
  font-size: 1.45rem;
}

.brand__text {
  display: grid;
  gap: 1px;
}

.brand__text strong {
  font-size: 1.15rem;
  line-height: 1.2;
}

.brand__text small {
  color: rgba(255, 255, 255, 0.68);
  font-size: 0.78rem;
}

.primary-nav {
  display: flex;
  align-items: center;
}

.menu {
  display: flex;
  align-items: center;
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.menu a {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  padding-inline: 13px;
  color: rgba(255, 255, 255, 0.78);
  border-radius: 6px;
  font-size: 0.94rem;
  transition: color 180ms ease, background 180ms ease;
}

.menu a:hover,
.menu a:focus-visible {
  color: var(--railco-white);
  background: rgba(255, 255, 255, 0.08);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  color: var(--railco-white);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 6px;
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  margin: 5px auto;
  background: currentColor;
  border-radius: 999px;
}

.hero {
  position: relative;
  overflow: hidden;
}

.hero-slide {
  position: relative;
  min-height: clamp(620px, 88vh, 780px);
  display: grid;
  align-items: center;
  color: var(--railco-white);
  overflow: hidden;
  background:
    linear-gradient(90deg, rgba(5, 18, 34, 0.96) 0%, rgba(6, 24, 45, 0.84) 40%, rgba(6, 24, 45, 0.45) 78%),
    var(--hero-image, linear-gradient(135deg, var(--railco-navy), var(--railco-navy-3))) center / cover no-repeat;
}

.hero--slider.is-enhanced .hero-slide {
  display: none;
}

.hero--slider:not(.is-enhanced) .hero-slide + .hero-slide {
  display: none;
}

.hero--slider.is-enhanced .hero-slide.is-active {
  display: grid;
}

.hero-slide::after {
  content: "";
  position: absolute;
  inset-inline: 0;
  inset-block-end: 0;
  height: 110px;
  background: linear-gradient(0deg, var(--railco-bg), transparent);
}

.hero__inner {
  position: relative;
  z-index: 1;
  max-width: 760px;
  margin-inline-start: auto;
  margin-inline-end: 0;
  padding-block: 96px 132px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--railco-orange);
  font-weight: 800;
  font-size: 0.88rem;
}

.hero h1,
.section-heading h2,
.why-copy h2,
.about-panel h2,
.contact-copy h2 {
  margin: 0;
  font-weight: 900;
  line-height: 1.45;
  letter-spacing: 0;
}

.hero h1 {
  max-width: 820px;
  font-size: clamp(2.15rem, 4.6vw, 4.75rem);
  overflow-wrap: anywhere;
}

.hero__lead {
  max-width: 680px;
  margin: 22px 0 0;
  color: rgba(255, 255, 255, 0.82);
  font-size: clamp(1rem, 1.6vw, 1.22rem);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-block-start: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding-inline: 22px;
  border: 1px solid transparent;
  border-radius: 6px;
  font-weight: 800;
  transition: transform 180ms ease, background 180ms ease, border-color 180ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button--primary {
  color: #281403;
  background: var(--railco-orange);
  box-shadow: 0 18px 36px rgba(242, 138, 37, 0.26);
}

.button--primary:hover {
  background: #ff9c37;
}

.button--ghost {
  color: var(--railco-white);
  border-color: rgba(255, 255, 255, 0.28);
  background: rgba(255, 255, 255, 0.07);
}

.section {
  padding-block: clamp(72px, 8vw, 112px);
}

.section--light {
  background: var(--railco-bg);
}

.section-heading {
  max-width: 760px;
  margin-block-end: 34px;
}

.section-heading h2,
.why-copy h2,
.about-panel h2,
.contact-copy h2 {
  color: var(--railco-navy);
  font-size: clamp(1.8rem, 3vw, 3rem);
}

.section-heading p:not(.eyebrow),
.why-copy > p,
.about-panel > p,
.contact-copy > p {
  margin: 14px 0 0;
  color: var(--railco-muted);
  font-size: 1.03rem;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 14px;
}

.service-card {
  min-height: 280px;
  padding: 24px 20px;
  background: var(--railco-white);
  border: 1px solid var(--railco-line);
  border-radius: var(--railco-radius);
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.service-card:hover {
  transform: translateY(-6px);
  border-color: rgba(242, 138, 37, 0.42);
  box-shadow: var(--railco-shadow);
}

.icon-badge {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  color: var(--railco-orange);
  background: #fff1e2;
  border: 1px solid #ffd5ad;
  border-radius: 8px;
}

.service-card h3,
.project-card h3,
.news-card h3 {
  margin: 20px 0 9px;
  color: var(--railco-navy);
  font-size: 1.05rem;
  line-height: 1.6;
}

.service-card p,
.project-card p,
.news-card p {
  margin: 0;
  color: var(--railco-muted);
  font-size: 0.94rem;
}

.why-section {
  padding-block: clamp(78px, 9vw, 124px);
  color: var(--railco-white);
  background:
    linear-gradient(135deg, rgba(6, 24, 45, 0.98), rgba(9, 39, 72, 0.94)),
    var(--why-image, linear-gradient(135deg, var(--railco-navy), var(--railco-navy-3))) center / cover fixed;
}

.why-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(340px, 0.9fr);
  gap: 54px;
  align-items: center;
}

.why-copy h2,
.why-copy > p {
  color: var(--railco-white);
}

.why-copy > p {
  color: rgba(255, 255, 255, 0.72);
}

.benefit-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px 18px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.benefit-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  color: rgba(255, 255, 255, 0.9);
}

.benefit-list svg {
  flex: 0 0 auto;
  color: var(--railco-orange);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.stat-card {
  min-height: 152px;
  display: grid;
  align-content: center;
  padding: 22px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: var(--railco-radius);
}

.stat-card strong {
  color: var(--railco-orange);
  font-size: clamp(2rem, 4vw, 3.6rem);
  line-height: 1;
  font-weight: 900;
}

.stat-card span {
  margin-block-start: 10px;
  color: rgba(255, 255, 255, 0.78);
  font-weight: 600;
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.project-card {
  overflow: hidden;
  background: var(--railco-white);
  border: 1px solid var(--railco-line);
  border-radius: var(--railco-radius);
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.project-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--railco-shadow);
}

.project-card img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.project-card__body {
  padding: 20px;
}

.project-card h3 {
  margin-block-start: 0;
}

.project-card a,
.news-card a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-block-start: 18px;
  color: var(--railco-orange-2);
  font-weight: 800;
}

.about-section {
  padding-block: clamp(78px, 9vw, 124px);
  background: var(--railco-white);
}

.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(340px, 0.95fr);
  gap: 36px;
  align-items: stretch;
}

.about-panel {
  padding: clamp(28px, 5vw, 54px);
  color: var(--railco-ink);
  background: var(--railco-ivory);
  border: 1px solid #f0dfc7;
  border-radius: var(--railco-radius);
}

.timeline {
  display: grid;
  gap: 14px;
  margin-block-start: 28px;
}

.timeline div {
  padding-inline-start: 18px;
  border-inline-start: 3px solid var(--railco-orange);
}

.timeline strong,
.timeline span {
  display: block;
}

.timeline strong {
  color: var(--railco-navy);
}

.timeline span {
  color: var(--railco-muted);
}

.about-image {
  min-height: 100%;
  overflow: hidden;
  border-radius: var(--railco-radius);
}

.about-image img {
  width: 100%;
  height: 100%;
  min-height: 520px;
  object-fit: cover;
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.news-card {
  padding: 26px;
  background: var(--railco-white);
  border: 1px solid var(--railco-line);
  border-radius: var(--railco-radius);
}

.news-card > span {
  display: inline-flex;
  padding: 5px 10px;
  color: var(--railco-orange-2);
  background: #fff1e2;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 800;
}

.contact-section {
  padding-block: clamp(78px, 9vw, 124px);
  color: var(--railco-white);
  background: var(--railco-navy);
}

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(340px, 0.7fr);
  gap: 28px;
  align-items: start;
}

.contact-copy h2,
.contact-copy > p {
  color: var(--railco-white);
}

.contact-copy > p {
  color: rgba(255, 255, 255, 0.72);
}

.contact-lines {
  display: grid;
  gap: 8px;
  margin-block: 28px;
  color: rgba(255, 255, 255, 0.82);
}

.social-links {
  display: flex;
  gap: 10px;
}

.social-links a {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  color: var(--railco-white);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 6px;
  font-size: 0.8rem;
  font-weight: 800;
}

.contact-form {
  display: grid;
  gap: 14px;
  padding: 24px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--railco-radius);
}

.contact-form label {
  display: grid;
  gap: 7px;
  color: rgba(255, 255, 255, 0.76);
  font-weight: 700;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  color: var(--railco-white);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 6px;
  padding: 12px 14px;
}

.contact-form textarea {
  resize: vertical;
}

.map-panel {
  grid-column: 1 / -1;
  display: grid;
  min-height: 220px;
  align-content: end;
  padding: 28px;
  color: var(--railco-white);
  background:
    linear-gradient(135deg, rgba(6, 24, 45, 0.92), rgba(242, 138, 37, 0.38)),
    repeating-linear-gradient(45deg, rgba(255, 255, 255, 0.08) 0 1px, transparent 1px 18px);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--railco-radius);
}

.map-panel span {
  color: rgba(255, 255, 255, 0.7);
}

.map-panel strong {
  font-size: 1.5rem;
}

.site-footer {
  color: rgba(255, 255, 255, 0.75);
  background: #041326;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.7fr 1fr;
  gap: 34px;
  padding-block: 54px;
}

.footer-grid h2 {
  margin: 0 0 14px;
  color: var(--railco-white);
  font-size: 1.05rem;
}

.footer-grid a:not(.brand) {
  display: block;
  margin-block: 8px;
}

.brand--footer {
  color: var(--railco-white);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding-block: 18px;
  border-block-start: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.9rem;
}

.archive-shell {
  padding-block: 80px;
}

.content-card {
  margin-block-end: 18px;
  padding: 26px;
  background: var(--railco-white);
  border: 1px solid var(--railco-line);
  border-radius: var(--railco-radius);
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 650ms ease, transform 650ms ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}

@media (max-width: 1120px) {
  .service-grid {
    grid-template-columns: repeat(3, 1fr);
  }

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

@media (max-width: 860px) {
  .top-strip {
    display: none;
  }

  .nav-shell {
    min-height: 68px;
  }

  .nav-toggle {
    display: block;
  }

  .primary-nav {
    position: fixed;
    inset: 68px 0 auto 0;
    display: none;
    padding: 18px;
    background: rgba(6, 24, 45, 0.98);
    border-block-start: 1px solid rgba(255, 255, 255, 0.1);
  }

  .primary-nav.is-open {
    display: block;
  }

  .menu {
    display: grid;
    gap: 8px;
  }

  .menu a {
    width: 100%;
    min-height: 48px;
  }

  .hero-slide {
    min-height: 640px;
    background:
      linear-gradient(180deg, rgba(5, 18, 34, 0.92) 0%, rgba(6, 24, 45, 0.86) 55%, rgba(6, 24, 45, 0.72) 100%),
      var(--hero-image, linear-gradient(135deg, var(--railco-navy), var(--railco-navy-3))) center / cover no-repeat;
  }

  .hero__inner {
    margin-inline: auto;
    padding-block: 82px 118px;
  }

  .why-grid,
  .about-grid,
  .contact-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .benefit-list,
  .stats-grid {
    grid-template-columns: 1fr;
  }

  .about-image img {
    min-height: 340px;
  }
}

@media (max-width: 680px) {
  :root {
    --railco-container: min(1180px, calc(100% - 24px));
  }

  .brand__text small {
    display: none;
  }

  .hero__actions,
  .button {
    width: 100%;
  }

  .hero-slide {
    min-height: 620px;
  }

  .hero__inner {
    width: 100%;
    max-width: 100%;
    text-align: center;
  }

  .hero h1 {
    font-size: clamp(1.85rem, 9vw, 2.45rem);
    line-height: 1.55;
  }

  .hero__lead {
    max-width: 100%;
    font-size: 0.98rem;
  }

  .section-heading h2,
  .why-copy h2,
  .about-panel h2,
  .contact-copy h2 {
    font-size: clamp(1.55rem, 8vw, 2rem);
  }

  .service-grid,
  .project-grid,
  .news-grid {
    grid-template-columns: 1fr;
  }

  .service-card {
    min-height: auto;
  }

  .footer-bottom {
    display: grid;
  }
}