/* ==========================================================================
   MCR — Multi Civil & Rail Services
   Brand: navy #1d1a55 · orange #d64200 · Roboto
   ========================================================================== */

:root {
  --navy: #1d1a55;
  --navy-900: #12103a;
  --orange: #d64200;
  --orange-600: #b83900;
  --ink: #1c1c28;
  --muted: #54595f;
  --line: #e4e5ee;
  --bg: #ffffff;
  --bg-alt: #f4f5fb;
  --wrap: 1180px;
  --radius: 8px;
  --shadow: 0 10px 30px rgba(29, 26, 85, 0.10);
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Roboto", system-ui, -apple-system, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 { font-weight: 900; line-height: 1.15; color: var(--navy); margin: 0 0 .5em; }
h1 { font-size: clamp(2rem, 5vw, 3.25rem); }
h2 { font-size: clamp(1.5rem, 3.2vw, 2.25rem); }
h3 { font-size: 1.25rem; }
p { margin: 0 0 1rem; }
a { color: var(--orange); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; height: auto; display: block; }

.wrap { width: min(var(--wrap), 92%); margin-inline: auto; }
.section { padding-block: clamp(2.5rem, 6vw, 5rem); }
.section--alt { background: var(--bg-alt); }
.lede { font-size: 1.2rem; color: var(--muted); max-width: 60ch; }

.skip {
  position: absolute; left: -9999px; top: 0; z-index: 1000;
  background: var(--navy); color: #fff; padding: .75rem 1rem;
}
.skip:focus { left: 1rem; top: 1rem; }

/* -------- Buttons ------------------------------------------------------- */
.btn {
  display: inline-block; background: var(--orange); color: #fff;
  padding: .8rem 1.6rem; border-radius: var(--radius); font-weight: 700;
  letter-spacing: .02em; transition: background .15s, transform .15s;
}
.btn:hover { background: var(--orange-600); text-decoration: none; transform: translateY(-1px); }
.btn--ghost { background: transparent; border: 2px solid #fff; }
.btn--ghost:hover { background: rgba(255,255,255,.14); }
.btn--navy { background: var(--navy); }
.btn--navy:hover { background: var(--navy-900); }

/* -------- Header / nav -------------------------------------------------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: var(--navy); color: #fff;
  box-shadow: 0 2px 10px rgba(0,0,0,.15);
}
.header-inner { display: flex; align-items: center; gap: 1.5rem; min-height: 74px; }
.brand img { height: 46px; width: auto; }
.nav { margin-left: auto; display: flex; flex-wrap: wrap; gap: .25rem 1.1rem; align-items: center; }
.nav a {
  color: #e9eaf5; font-weight: 500; font-size: .95rem; padding: .35rem 0;
  border-bottom: 2px solid transparent;
}
.nav a:hover { color: #fff; text-decoration: none; border-color: var(--orange); }
.nav a[aria-current="page"] { color: #fff; border-color: var(--orange); }

.navtoggle, .navbtn { display: none; }

/* -------- Hero --------------------------------------------------------- */
.hero { position: relative; color: #fff; background: var(--navy); overflow: hidden; }
.hero-bg {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; opacity: .32;
}
.hero-inner { position: relative; padding-block: clamp(4rem, 12vw, 8rem); max-width: 780px; }
.hero h1 { color: #fff; }
.hero-kicker {
  text-transform: uppercase; letter-spacing: .18em; font-weight: 700;
  color: #ffb894; margin-bottom: .75rem; font-size: .9rem;
}
.hero-sub { font-size: 1.2rem; color: #d9daec; margin-bottom: 1.75rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 1rem; }

/* -------- Page header (interior pages) --------------------------------- */
.pagehead { position: relative; background: var(--navy); color: #fff; overflow: hidden; }
.pagehead .wrap { position: relative; padding-block: clamp(2.5rem, 7vw, 4.5rem); }
.pagehead h1 { color: #fff; margin: 0; }
.pagehead--img .pagehead-bg {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: .35;
}

/* -------- Generic content / prose -------------------------------------- */
.prose { max-width: 780px; }
.prose h2 { margin-top: 2rem; }
.prose ul, .prose ol { padding-left: 1.25rem; }
.prose li { margin-bottom: .4rem; }
.eyebrow {
  text-transform: uppercase; letter-spacing: .16em; font-weight: 700;
  color: var(--orange); font-size: .85rem; margin-bottom: .5rem;
}

/* -------- Home: intro video block -------------------------------------- */
.logo-intro { background: var(--navy-900); color: #fff; text-align: center; padding-block: clamp(2rem,5vw,3.5rem); }
.logo-intro video { width: min(560px, 90%); margin-inline: auto; border-radius: var(--radius); }
.logo-intro p { text-transform: uppercase; letter-spacing: .3em; margin-top: 1rem; color: #b9bace; }

/* -------- Cards / grids ------------------------------------------------ */
.grid { display: grid; gap: 1.5rem; }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }
.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 2.5rem; box-shadow: var(--shadow);
}
.card h3 { color: var(--navy); }
.card img { border-radius: 6px; margin-bottom: 1rem; }

/* Principles / values */
.principles { display: grid; grid-template-columns: repeat(4, max-content); justify-content: center; gap: 2rem; text-align: center; }
.principles img { width: 200px; margin: 0 auto .75rem; }

/* Stats */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; text-align: center; }
.stat .num { font-size: clamp(2rem, 5vw, 3rem); font-weight: 900; color: var(--orange); line-height: 1; }
.stat .label { color: var(--muted); font-weight: 500; }

/* -------- Client logo wall & marquee ----------------------------------- */
.logo-wall { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; align-items: center; }
.logo-wall img { filter: grayscale(1); opacity: .8; transition: .2s; margin-inline: auto; max-height: 90px; }
.logo-wall img:hover { filter: none; opacity: 1; }

.logo-marquee { overflow: hidden; }
.logo-track {
  display: flex; gap: 3rem; align-items: center; width: max-content;
  animation: scroll-x 40s linear infinite;
}
.logo-track img { height: 60px; filter: grayscale(1); opacity: .75; }
.logo-marquee:hover .logo-track { animation-play-state: paused; }
@keyframes scroll-x { to { transform: translateX(-50%); } }
@media (prefers-reduced-motion: reduce) { .logo-track { animation: none; flex-wrap: wrap; } }

/* -------- Media (responsive video/map embeds) -------------------------- */
.embed { position: relative; aspect-ratio: 16 / 9; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.embed iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.embed--map { aspect-ratio: 4 / 3; }

/* -------- Projects list ------------------------------------------------ */
.project { display: grid; grid-template-columns: 1fr 1.2fr; gap: 2rem; align-items: center; }
.project:nth-child(even) .project-media { order: 2; }
.project img { border-radius: var(--radius); box-shadow: var(--shadow); }

/* -------- Contact / offices -------------------------------------------- */
.office { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.office-body { padding: 1.5rem; }
.office-body h3 { margin-bottom: .75rem; }
.office-body dt { font-weight: 700; color: var(--navy); margin-top: .6rem; }
.office-body dd { margin: 0; }

/* -------- Policies ----------------------------------------------------- */
.policy { margin-bottom: 2.5rem; }
.policy h3 { display: flex; align-items: baseline; gap: .5rem; }
.policy .embed { aspect-ratio: 3 / 4; }
.policy-list a { display: inline-block; margin: .25rem .75rem .25rem 0; }

/* -------- Acknowledgement of country ----------------------------------- */
.acknowledgement { background: var(--navy); color: #fff; text-align: center; padding-block: 2.75rem; }
.acknowledgement h2 { color: #fff; font-size: 1.15rem; text-transform: uppercase; letter-spacing: .1em; }
.acknowledgement p { max-width: 70ch; margin-inline: auto; color: #d9daec; }

/* -------- Footer ------------------------------------------------------- */
.site-footer { background: var(--navy-900); color: #cfd0e2; font-size: .95rem; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 2.5rem; padding-block: 3rem; }
.footer-brand img { margin-bottom: 1rem; }
.site-footer h3 { color: #fff; font-size: 1rem; margin-bottom: 1rem; }
.footer-nav ul { list-style: none; margin: 0; padding: 0; }
.footer-nav li { margin-bottom: .4rem; }
.site-footer a { color: #cfd0e2; }
.site-footer a:hover { color: #fff; }
.footer-bar { border-top: 1px solid rgba(255,255,255,.12); }
.footer-bar .wrap { padding-block: 1.25rem; }
.footer-bar p { margin: 0; font-size: .85rem; color: #9a9bb5; }

/* -------- Staff area --------------------------------------------------- */
.staff-banner { background: var(--orange); color: #fff; }
.staff-banner .wrap { display: flex; align-items: center; gap: 1rem; padding-block: .6rem; }
.staff-badge { font-weight: 700; text-transform: uppercase; letter-spacing: .1em; font-size: .8rem; }
.staff-home { color: #fff; margin-left: auto; font-weight: 500; }
.staff-list { list-style: none; padding: 0; display: grid; gap: 1rem; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }
.staff-list a { display: block; padding: 1.25rem 1.5rem; border: 1px solid var(--line); border-radius: var(--radius); color: var(--navy); font-weight: 700; box-shadow: var(--shadow); }
.staff-list a:hover { text-decoration: none; border-color: var(--orange); }

/* -------- Responsive --------------------------------------------------- */
@media (max-width: 900px) {
  .grid--3, .grid--4, .logo-wall, .principles, .stats { grid-template-columns: repeat(2, 1fr); }
  .project, .grid--2 { grid-template-columns: 1fr; }
  .project:nth-child(even) .project-media { order: 0; }
  .footer-grid { grid-template-columns: 1fr; gap: 1.75rem; }
}

@media (max-width: 780px) {
  .navbtn {
    display: inline-flex; margin-left: auto; width: 44px; height: 44px;
    align-items: center; justify-content: center; cursor: pointer; color: #fff;
  }
  .navbtn span, .navbtn span::before, .navbtn span::after {
    content: ""; display: block; width: 24px; height: 2px; background: #fff; position: relative;
  }
  .navbtn span::before { position: absolute; top: -7px; }
  .navbtn span::after { position: absolute; top: 7px; }
  .nav {
    flex-basis: 100%; flex-direction: column; align-items: stretch; gap: 0;
    max-height: 0; overflow: hidden; transition: max-height .25s ease; margin-left: 0;
  }
  .navtoggle:checked ~ .nav { max-height: 34rem; padding-block: .5rem; }
  .nav a { padding: .75rem .25rem; border-bottom: 1px solid rgba(255,255,255,.1); }
  .header-inner { flex-wrap: wrap; }
}

@media (max-width: 560px) {
  .grid--3, .grid--4, .logo-wall, .principles, .stats { grid-template-columns: 1fr 1fr; }
}