/* ==========================================================================
   Anderson Columbia — Homepage Redesign
   Restrained industrial design: white / charcoal / neutral grays, red accent.
   ========================================================================== */

:root {
  --ac-red: #C8102E;
  --ac-red-dark: #A30E26;
  --charcoal: #1C1D1F;
  --charcoal-soft: #2A2C2F;
  --gray-900: #16171A;
  --gray-700: #4B4F54;
  --gray-500: #74787D;
  --gray-300: #C8CBCE;
  --gray-100: #F2F3F4;
  --white: #FFFFFF;
  --font-display: 'Oswald', 'Inter', Arial, sans-serif;
  --font-body: 'Inter', Arial, sans-serif;
  --header-h: 76px;
  --max-width: 1240px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--charcoal);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.15;
  margin: 0 0 0.5em;
  color: var(--charcoal);
}

p { margin: 0 0 1em; }
img { max-width: 100%; display: block; }
a { color: var(--ac-red); text-decoration: none; }
a:hover { text-decoration: underline; }

.skip-link {
  position: absolute;
  left: -999px;
  top: auto;
  background: var(--ac-red);
  color: #fff;
  padding: 10px 16px;
  z-index: 2000;
}
.skip-link:focus {
  left: 10px;
  top: 10px;
}

:focus-visible {
  outline: 3px solid var(--ac-red);
  outline-offset: 2px;
}

/* ============ Buttons ============ */
.btn {
  display: inline-block;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  padding: 0.75em 1.5em;
  border-radius: 2px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: background .15s ease, color .15s ease, border-color .15s ease;
  text-decoration: none;
}
.btn-primary {
  background: var(--ac-red);
  color: #fff;
}
.btn-primary:hover { background: var(--ac-red-dark); text-decoration: none; }
.btn-outline {
  background: transparent;
  color: var(--charcoal);
  border-color: var(--charcoal);
}
.btn-outline:hover { background: var(--charcoal); color: #fff; text-decoration: none; }
.btn-outline-light {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,0.7);
}
.btn-outline-light:hover { background: rgba(255,255,255,0.12); text-decoration: none; }
.btn-lg { padding: 0.9em 1.9em; font-size: 1rem; }

/* ============ Header ============ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.97);
  border-bottom: 1px solid var(--gray-300);
  backdrop-filter: saturate(140%) blur(4px);
}
.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
}
.brand { display: flex; align-items: center; }
.brand-logo { height: 48px; width: auto; }

.main-nav ul {
  display: flex;
  gap: 28px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.main-nav a {
  color: var(--charcoal);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  padding: 8px 0;
  border-bottom: 2px solid transparent;
}
.main-nav a:hover {
  color: var(--ac-red);
  text-decoration: none;
  border-bottom-color: var(--ac-red);
}

.header-actions { display: flex; align-items: center; gap: 16px; }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
}
.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--charcoal);
  width: 100%;
  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); }

.mobile-nav {
  background: var(--white);
  border-top: 1px solid var(--gray-300);
}
.mobile-nav ul {
  list-style: none;
  margin: 0;
  padding: 8px 24px 20px;
  display: flex;
  flex-direction: column;
}
.mobile-nav a {
  display: block;
  padding: 14px 0;
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--charcoal);
  border-bottom: 1px solid var(--gray-100);
}
.mobile-contact-btn {
  margin-top: 10px;
  text-align: center;
  border-bottom: none !important;
  color: #fff !important;
}

/* ============ Hero ============ */
.hero {
  position: relative;
  min-height: 86vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  color: #fff;
}
.hero-media {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-video, .hero-fallback-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.hero-video { z-index: 1; }
.hero-fallback-img { z-index: 0; }
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(16,17,20,0.55) 0%, rgba(16,17,20,0.55) 40%, rgba(16,17,20,0.8) 100%);
  z-index: 2;
}
.hero-content {
  position: relative;
  z-index: 3;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  width: 100%;
}
.hero-eyebrow {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.85rem;
  color: var(--gray-300);
  margin-bottom: 18px;
}
.hero h1 {
  font-size: clamp(2.1rem, 5vw, 3.6rem);
  color: #fff;
  max-width: 820px;
  margin-bottom: 20px;
}
.hero-sub {
  font-size: 1.15rem;
  max-width: 620px;
  color: var(--gray-100);
  margin-bottom: 32px;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }

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

/* ============ Facts strip ============ */
.facts-strip {
  background: var(--charcoal);
  border-bottom: 4px solid var(--ac-red);
}
.facts-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 36px 24px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}
.fact-number {
  display: block;
  font-family: var(--font-display);
  font-size: 2.6rem;
  font-weight: 700;
  color: var(--ac-red);
  line-height: 1;
}
.fact-label {
  display: block;
  color: var(--gray-300);
  font-size: 0.92rem;
  margin-top: 8px;
}

/* ============ Sections ============ */
.section { padding: 88px 0; }
.section-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}
.section-dark { background: var(--charcoal); color: var(--gray-100); }
.section-dark h2, .section-dark h3 { color: #fff; }
.section-dark p { color: var(--gray-300); }
.section-alt { background: var(--gray-100); }

.section-kicker {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.85rem;
  color: var(--ac-red);
  margin-bottom: 10px;
  font-weight: 600;
}
.section h2 {
  font-size: clamp(1.7rem, 3vw, 2.4rem);
  max-width: 760px;
}
.section-intro {
  max-width: 700px;
  color: var(--gray-700);
  font-size: 1.05rem;
}
.section-dark .section-intro { color: var(--gray-300); }
.section-cta { margin-top: 40px; }

/* ============ Capability grid ============ */
.capability-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-top: 40px;
}
.capability-card {
  background: var(--white);
  border: 1px solid var(--gray-300);
}
.capability-card img {
  width: 100%;
  height: 190px;
  object-fit: cover;
}
.capability-body { padding: 20px; }
.capability-body h3 {
  font-size: 1.15rem;
  margin-bottom: 8px;
}
.capability-body p {
  color: var(--gray-700);
  font-size: 0.95rem;
  margin-bottom: 12px;
}
.capability-link {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.88rem;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  color: var(--ac-red);
}

/* ============ Project grid / cards ============ */
.project-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-top: 40px;
}
.project-card {
  background: var(--charcoal-soft);
  border: 1px solid #3a3d41;
  cursor: pointer;
  transition: border-color .15s ease;
}
.project-card:hover,
.project-card:focus-visible {
  border-color: var(--ac-red);
}
.project-card img {
  width: 100%;
  height: 190px;
  object-fit: cover;
}
.project-body { padding: 20px; }
.project-tag {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ac-red);
  background: rgba(200,16,46,0.12);
  padding: 4px 10px;
  margin-bottom: 10px;
}
.project-body h3 { color: #fff; font-size: 1.2rem; margin-bottom: 4px; }
.project-loc { color: var(--gray-300); font-size: 0.88rem; margin-bottom: 10px; }
.project-body p { color: var(--gray-300); font-size: 0.93rem; }
.project-metric {
  font-weight: 600;
  color: #fff !important;
}
.project-open {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.85rem;
  text-transform: uppercase;
  color: var(--ac-red);
  margin-top: 8px;
}

/* ============ Project overlay ============ */
.overlay-root {
  position: fixed;
  inset: 0;
  z-index: 3000;
  display: none;
}
.overlay-root.is-open { display: block; }
.overlay-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(10,10,12,0.78);
}
.overlay-dialog {
  position: relative;
  z-index: 1;
  max-width: 860px;
  margin: 4vh auto;
  max-height: 92vh;
  overflow-y: auto;
  background: var(--white);
  border-top: 6px solid var(--ac-red);
  padding: 40px;
}
.overlay-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: none;
  background: var(--gray-100);
  color: var(--charcoal);
  font-size: 1.1rem;
  cursor: pointer;
}
.overlay-close:hover { background: var(--ac-red); color: #fff; }

.overlay-tag {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ac-red);
  background: rgba(200,16,46,0.1);
  padding: 4px 10px;
  margin-bottom: 12px;
}
.overlay-content h3 { font-size: 1.9rem; margin-bottom: 4px; }
.overlay-meta { color: var(--gray-500); margin-bottom: 20px; font-size: 0.95rem; }
.overlay-gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-bottom: 24px;
}
.overlay-gallery img {
  width: 100%;
  height: 150px;
  object-fit: cover;
}
.overlay-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-top: 20px;
}
.overlay-grid h4 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--ac-red);
  margin-bottom: 6px;
}
.overlay-grid p { color: var(--gray-700); font-size: 0.95rem; }

/* ============ Materials ============ */
.materials-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 40px;
}
.materials-card {
  border-top: 3px solid var(--ac-red);
  padding-top: 18px;
}
.materials-icon {
  font-size: 1.6rem;
  color: var(--ac-red);
  margin-bottom: 14px;
}
.materials-card h3 { font-size: 1.05rem; margin-bottom: 8px; }
.materials-card p { color: var(--gray-700); font-size: 0.92rem; }

.materials-image-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-top: 44px;
}
.materials-image-row img { width: 100%; height: 280px; object-fit: cover; }

/* ============ Locations ============ */
.region-tabs {
  display: flex;
  gap: 4px;
  margin: 40px 0 0;
  border-bottom: 2px solid var(--gray-300);
}
.region-tab {
  font-family: var(--font-display);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-size: 0.95rem;
  background: transparent;
  border: none;
  padding: 14px 24px;
  cursor: pointer;
  color: var(--gray-700);
  border-bottom: 3px solid transparent;
  margin-bottom: -2px;
}
.region-tab.is-active {
  color: var(--ac-red);
  border-bottom-color: var(--ac-red);
}
.region-panels { margin-top: 32px; }
.region-panel {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 36px;
}
.region-panel[hidden] { display: none; }
.region-map {
  min-height: 360px;
  background: var(--gray-300);
}
.region-map iframe {
  width: 100%;
  height: 100%;
  min-height: 360px;
  border: 0;
}
.location-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 18px;
}
.location-list li {
  border-bottom: 1px solid var(--gray-300);
  padding-bottom: 14px;
}
.location-list h4 {
  font-size: 1rem;
  margin-bottom: 4px;
}
.loc-tag {
  display: inline-block;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: var(--ac-red);
  color: #fff;
  padding: 2px 8px;
  margin-left: 8px;
  font-family: var(--font-display);
  vertical-align: middle;
}
.location-list p { margin-bottom: 2px; font-size: 0.93rem; color: var(--gray-700); }
.loc-ext { font-size: 0.82rem; color: var(--gray-500); }

/* ============ Company / Safety ============ */
.company-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 48px;
  align-items: start;
}
.safety-subhead { margin-top: 30px; }
.company-media img {
  width: 100%;
  height: 230px;
  object-fit: cover;
  margin-bottom: 8px;
}
.company-media-caption {
  color: var(--gray-500);
  font-size: 0.85rem;
  margin-bottom: 24px;
}
.safety-photo { margin-top: 4px; }

/* ============ Careers ============ */
.careers-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  margin-top: 40px;
  align-items: start;
}
.careers-photos {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.careers-photos img {
  width: 100%;
  height: 100%;
  min-height: 220px;
  object-fit: cover;
}
.benefits-list { list-style: none; margin: 0 0 30px; padding: 0; display: grid; gap: 22px; }
.benefits-list li { display: flex; gap: 16px; align-items: flex-start; }
.benefits-list i { color: var(--ac-red); font-size: 1.4rem; margin-top: 3px; }
.benefits-list strong { display: block; font-family: var(--font-display); margin-bottom: 2px; }
.benefits-list p { margin: 0; color: var(--gray-700); font-size: 0.93rem; }
.careers-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 14px; }
.careers-note { font-size: 0.85rem; color: var(--gray-500); }

/* ============ News ============ */
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-top: 40px;
}
.news-card {
  background: var(--white);
  border: 1px solid var(--gray-300);
  padding: 24px;
}
.news-date {
  display: inline-block;
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--ac-red);
  margin-bottom: 10px;
  font-size: 0.9rem;
}
.news-card h3 { font-size: 1.1rem; margin-bottom: 8px; }
.news-card p { color: var(--gray-700); font-size: 0.93rem; }
.news-link {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.85rem;
  text-transform: uppercase;
  color: var(--ac-red);
}

/* ============ Contact ============ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 56px;
}
.contact-channels { list-style: none; margin: 30px 0 0; padding: 0; display: grid; gap: 20px; }
.contact-channels strong { display: block; font-family: var(--font-display); color: #fff; margin-bottom: 4px; }
.contact-channels p { margin: 0; color: var(--gray-300); font-size: 0.95rem; }
.contact-channels a { color: var(--gray-300); }
.contact-channels a:hover { color: var(--ac-red); }

.contact-form {
  background: var(--charcoal-soft);
  padding: 32px;
  border: 1px solid #3a3d41;
}
.form-row { margin-bottom: 18px; }
.form-row label {
  display: block;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.88rem;
  color: var(--gray-100);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}
.form-row input,
.form-row select,
.form-row textarea {
  width: 100%;
  padding: 11px 14px;
  background: #fff;
  border: 1px solid var(--gray-300);
  border-radius: 2px;
  font-family: var(--font-body);
  font-size: 0.97rem;
  color: var(--charcoal);
}
.form-row input:focus,
.form-row select:focus,
.form-row textarea:focus {
  border-color: var(--ac-red);
}
.field-error {
  color: #ff9d9d;
  font-size: 0.83rem;
  margin: 6px 0 0;
  min-height: 1em;
}
.form-status {
  margin-top: 16px;
  font-size: 0.95rem;
  color: var(--gray-300);
}
.form-status.is-success { color: #8de08d; }
.form-status.is-error { color: #ff9d9d; }

/* ============ Footer ============ */
.site-footer { background: var(--gray-900); color: var(--gray-300); padding: 60px 0 0; }
.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 32px;
}
.footer-brand img { height: 40px; margin-bottom: 14px; }
.footer-brand p { font-size: 0.9rem; color: var(--gray-500); }
.footer-social { display: flex; gap: 14px; margin-top: 12px; }
.footer-social a {
  color: var(--gray-300);
  font-size: 1.15rem;
  width: 36px;
  height: 36px;
  border: 1px solid var(--gray-700);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.footer-social a:hover { color: #fff; border-color: var(--ac-red); background: var(--ac-red); text-decoration: none; }

.site-footer h4 {
  color: #fff;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 14px;
}
.footer-nav ul, .footer-utility ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.footer-nav a, .footer-utility a { color: var(--gray-300); font-size: 0.92rem; }
.footer-nav a:hover, .footer-utility a:hover { color: var(--ac-red); }
.footer-contact p { font-size: 0.92rem; margin-bottom: 14px; }
.footer-contact a { color: var(--gray-300); }
.footer-contact a:hover { color: var(--ac-red); }

.footer-bottom {
  margin-top: 48px;
  border-top: 1px solid var(--gray-700);
  padding: 20px 24px;
  text-align: center;
  font-size: 0.82rem;
  color: var(--gray-500);
}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 1024px) {
  .capability-grid, .project-grid, .news-grid { grid-template-columns: repeat(2, 1fr); }
  .materials-grid { grid-template-columns: repeat(2, 1fr); }
  .company-grid, .careers-grid, .contact-grid { grid-template-columns: 1fr; }
  .region-panel { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 820px) {
  .main-nav { display: none; }
  .nav-toggle { display: flex; }
  .facts-inner { grid-template-columns: repeat(2, 1fr); }
  .header-actions .btn-primary { display: none; }
}

@media (max-width: 680px) {
  .section { padding: 56px 0; }
  .capability-grid, .project-grid, .news-grid, .materials-grid { grid-template-columns: 1fr; }
  .overlay-gallery { grid-template-columns: 1fr 1fr; }
  .overlay-grid { grid-template-columns: 1fr; }
  .overlay-dialog { padding: 26px; margin: 0; max-height: 100vh; min-height: 100vh; border-radius: 0; }
  .hero h1 { font-size: 2rem; }
  .careers-photos { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
}