:root {
  /* HIDPL brand palette */
  --navy: #0b2f6b;        /* deep corporate blue */
  --navy-dark: #082450;   /* darker navy for the top bar */
  --orange: #f7941d;      /* brand accent */
  --orange-dark: #e07d0a;

  --bg: #ffffff;          /* light page */
  --bg-soft: #f4f6fb;     /* section / card background */
  --card: #ffffff;
  --line: #e2e6ef;        /* subtle borders */
  --text: #16233d;        /* near-navy body text */
  --muted: #667089;       /* secondary text */
  --radius: 14px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Inter", system-ui, -apple-system, sans-serif;
  -webkit-font-smoothing: antialiased;
}

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

/* ===== Top contact bar ===== */
.topbar {
  background: var(--navy-dark);
  color: #dfe6f5;
  font-size: 13px;
}
.topbar__inner {
  max-width: 1200px; margin: 0 auto; padding: 10px 24px;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
.topbar a { color: #dfe6f5; transition: color .15s ease; }
.topbar a:hover { color: var(--orange); }
.topbar__contact { display: flex; align-items: center; gap: 22px; }
.topbar__contact span { display: inline-flex; align-items: center; gap: 7px; }
.topbar__socials { display: flex; gap: 8px; }
.topbar__socials a {
  width: 26px; height: 26px; border-radius: 50%;
  background: var(--orange); color: #fff;
  display: grid; place-items: center; font-size: 12px; font-weight: 700;
}
.topbar__socials a:hover { background: var(--orange-dark); color: #fff; }

/* ===== Navigation / masthead ===== */
.masthead {
  background: #fff;
  border-bottom: 1px solid var(--line);
  position: sticky; top: 0; z-index: 40;
}
.masthead__inner {
  max-width: 1200px; margin: 0 auto; padding: 16px 24px;
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
}
.brand { display: flex; align-items: center; }
.brand__logo {
  height: 48px; width: auto; display: block;
}
@media (max-width: 640px) {
  .brand__logo { height: 38px; }
}
.nav { display: flex; align-items: center; gap: 26px; }
.nav > a, .nav__toplink {
  font-size: 15px; font-weight: 600; color: var(--navy);
  transition: color .15s ease;
}
.nav > a:hover, .nav__toplink:hover { color: var(--orange); }
.caret { font-size: 10px; }

/* Dropdowns (Services / Projects) */
.nav__item--drop { position: relative; }
.nav__menu {
  position: absolute; top: calc(100% + 10px); left: 0;
  min-width: 250px; background: #fff; border: 1px solid var(--line);
  border-radius: 12px; box-shadow: 0 18px 40px rgba(11,47,107,.16);
  padding: 8px; display: flex; flex-direction: column;
  opacity: 0; visibility: hidden; transform: translateY(6px);
  transition: opacity .16s ease, transform .16s ease, visibility .16s;
  z-index: 45;
}
.nav__item--drop:hover .nav__menu,
.nav__item--drop:focus-within .nav__menu {
  opacity: 1; visibility: visible; transform: translateY(0);
}
.nav__menu a {
  font-size: 14px; font-weight: 500; color: var(--text);
  padding: 9px 12px; border-radius: 8px; transition: background .12s ease, color .12s ease;
}
.nav__menu a:hover { background: var(--bg-soft); color: var(--navy); }
.btn-quote {
  display: inline-block; white-space: nowrap;
  background: var(--navy); color: #fff; font-weight: 700; font-size: 15px;
  padding: 12px 26px; border-radius: 999px; border: none; cursor: pointer;
  transition: background .18s ease, transform .18s ease;
}
.btn-quote:hover { background: var(--orange); transform: translateY(-1px); color: #fff; }

.masthead__right { display: flex; align-items: center; gap: 12px; }

/* Hamburger (hidden on desktop) */
.nav-toggle {
  display: none; width: 42px; height: 42px; border: 1px solid var(--line);
  background: #fff; border-radius: 10px; cursor: pointer; padding: 0;
  flex-direction: column; align-items: center; justify-content: center; gap: 5px;
}
.nav-toggle span {
  display: block; width: 20px; height: 2px; background: var(--navy);
  border-radius: 2px; transition: transform .2s ease, opacity .2s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===== Hero banner ===== */
.hero {
  position: relative;
  background:
    linear-gradient(180deg, rgba(11,47,107,.82), rgba(11,47,107,.88)),
    url("https://images.unsplash.com/photo-1541888946425-d81bb19240f5?auto=format&fit=crop&w=1600&q=60") center/cover no-repeat;
  color: #fff;
}
.hero__inner {
  max-width: 1200px; margin: 0 auto; padding: 90px 24px 80px;
}
.hero__crumb { font-size: 15px; color: #cdd7ee; margin-bottom: 16px; }
.hero__crumb b { color: #fff; font-weight: 600; }
.hero h1 {
  margin: 0; font-size: 44px; font-weight: 800; letter-spacing: .01em;
}
.hero p { margin: 14px 0 0; font-size: 16px; color: #d5def1; max-width: 620px; }

/* ===== Section heading ===== */
.section-head {
  max-width: 1200px; margin: 56px auto 0; padding: 0 24px;
}
.section-head__kicker {
  width: 54px; height: 4px; background: var(--orange); border-radius: 2px;
  margin-bottom: 16px;
}
.section-head h2 {
  margin: 0; font-size: 34px; font-weight: 800; line-height: 1.15;
  color: var(--navy); text-transform: uppercase; letter-spacing: .01em;
}
.section-head h2 b { color: var(--orange); font-weight: 800; }
.section-head p { margin: 12px 0 0; color: var(--muted); font-size: 15px; max-width: 640px; }

/* ===== Grid ===== */
.grid {
  max-width: 1200px; margin: 30px auto 70px; padding: 0 24px;
  display: grid; gap: 22px;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
}

.card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; cursor: pointer;
  transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease;
}
.card:hover {
  transform: translateY(-5px);
  border-color: var(--orange);
  box-shadow: 0 16px 34px rgba(11,47,107,.18);
}
.card__thumb {
  aspect-ratio: 4 / 3; position: relative;
  background:
    radial-gradient(420px 220px at 50% 25%, rgba(247,148,29,.20), transparent 70%),
    linear-gradient(180deg, #123a7d, #0b2f6b);
  display: grid; place-items: center;
}
.card__thumb img {
  position: absolute; inset: 0;
  width: 100%; height: 100%; object-fit: cover;
  z-index: 1;
}
.card__badge, .card__play { z-index: 2; }
.card__badge {
  position: absolute; top: 10px; left: 10px;
  background: var(--orange);
  color: #fff; font-size: 11px; font-weight: 700;
  padding: 4px 10px; border-radius: 999px; letter-spacing: .03em;
}
.card__play {
  position: absolute; inset: 0; display: grid; place-items: center;
  opacity: 0; transition: opacity .18s ease;
}
.card:hover .card__play { opacity: 1; }
.card__play span {
  width: 54px; height: 54px; border-radius: 50%;
  background: var(--orange); color: #fff; display: grid; place-items: center;
  font-size: 20px; box-shadow: 0 8px 22px rgba(11,47,107,.4);
}
.card__body { padding: 14px 16px; }
.card__title { font-weight: 700; font-size: 16px; color: var(--navy); }
.card__meta { color: var(--muted); font-size: 12px; margin-top: 4px; }

/* ===== Footer ===== */
.site-footer {
  background: var(--navy-dark); color: #c6d0e6;
  padding: 26px 24px; text-align: center; font-size: 13px;
}
.site-footer b { color: #fff; }
.site-footer .orange { color: var(--orange); }

/* ===== Viewer ===== */
.viewer {
  position: fixed; inset: 0; z-index: 60;
  background: rgba(6,15,35,.94); backdrop-filter: blur(4px);
  display: none; flex-direction: column;
}
.viewer.open { display: flex; }

.viewer__bar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 20px; border-bottom: 1px solid rgba(255,255,255,.12);
  gap: 12px; background: var(--navy-dark); color: #fff;
}
.viewer__info { display: flex; flex-direction: column; }
.viewer__info strong { font-size: 16px; color: #fff; }
.viewer__info span { font-size: 12px; color: #b9c4de; }

.viewer__actions { display: flex; gap: 8px; }
.vbtn {
  background: rgba(255,255,255,.08); color: #fff; border: 1px solid rgba(255,255,255,.16);
  padding: 8px 12px; border-radius: 9px; font-size: 13px; font-weight: 600;
  cursor: pointer; font-family: inherit;
  transition: background .15s ease, border-color .15s ease;
}
.vbtn:hover { background: rgba(247,148,29,.18); border-color: var(--orange); }
.vbtn.active { background: var(--orange); border-color: var(--orange); color: #fff; }
.vbtn--close:hover { background: #7a1f24; border-color: #ff5d5d; }

.viewer__stage { flex: 1; position: relative; overflow: hidden; }
.viewer__stage canvas {
  display: block; width: 100% !important; height: 100% !important;
  touch-action: none; /* let OrbitControls own touch gestures, not page scroll */
}

.viewer__loader {
  position: absolute; inset: 0; display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 14px; color: #c6d0e6;
}
.spinner {
  width: 38px; height: 38px; border-radius: 50%;
  border: 3px solid rgba(255,255,255,.18); border-top-color: var(--orange);
  animation: spin .8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ===== Responsive ===== */

/* Tablet / small laptop */
@media (max-width: 980px) {
  .nav-toggle { display: flex; }

  /* Desktop nav becomes a slide-down mobile panel */
  .nav {
    position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: #fff; border-bottom: 1px solid var(--line);
    box-shadow: 0 18px 30px rgba(11,47,107,.14);
    max-height: 0; overflow: hidden; transition: max-height .28s ease;
  }
  .nav.open { max-height: 80vh; overflow-y: auto; }

  /* Top-level links and dropdown headers */
  .nav > a, .nav__toplink {
    display: block; padding: 15px 24px;
    border-bottom: 1px solid var(--line); font-size: 16px;
  }

  /* Dropdowns flatten: header shown, submenu always expanded inline */
  .nav__item--drop { position: static; }
  .caret { display: none; }
  .nav__toplink { font-weight: 700; }
  .nav__menu {
    position: static; opacity: 1; visibility: visible; transform: none;
    min-width: 0; border: none; border-radius: 0; box-shadow: none;
    padding: 0; background: var(--bg-soft);
  }
  .nav__menu a {
    padding: 13px 24px 13px 38px; border-bottom: 1px solid var(--line);
    border-radius: 0; font-size: 14.5px;
  }

  .hero__inner { padding: 64px 22px 58px; }
  .hero h1 { font-size: 34px; }
}

/* Phones */
@media (max-width: 640px) {
  /* Hide the top contact bar and the Get-A-Quote button on mobile —
     keeps the header clean (logo + hamburger only). */
  .topbar { display: none; }
  .btn-quote { display: none; }

  .masthead__inner { padding: 12px 18px; gap: 12px; }

  .hero__inner { padding: 48px 18px 44px; }
  .hero h1 { font-size: 27px; }
  .hero p { font-size: 15px; }
  .hero__crumb { font-size: 13px; }

  .section-head { margin-top: 40px; }
  .section-head h2 { font-size: 23px; }

  .grid {
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 14px; padding: 0 18px; margin: 24px auto 50px;
  }

  /* Viewer: stack the bar so title + buttons both fit on narrow screens */
  .viewer__bar { flex-direction: column; align-items: stretch; gap: 10px; padding: 12px 14px; }
  .viewer__info span { display: none; }
  .viewer__actions { justify-content: space-between; }
  .vbtn { flex: 1; text-align: center; padding: 10px 8px; }
}

/* Very small phones — single-column gallery */
@media (max-width: 380px) {
  .grid { grid-template-columns: 1fr; }
}

/* Respect reduced-motion preference */
@media (prefers-reduced-motion: reduce) {
  * { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}