/* =========================================================
   FR A Long Distance Rail Study — stylesheet
   Organized by: variables, base, layout helpers, header/nav,
   hero, sections, cards, footer, responsive.
   ========================================================= */

:root{
  --navy:#0b2545;
  --navy-light:#1b4f8a;
  --accent:#c8862b;
  --accent-dark:#a86c1c;
  --bg:#f7f9fc;
  --bg-alt:#eef2f8;
  --card:#ffffff;
  --text:#20293b;
  --muted:#5a6b82;
  --border:#dde5ef;
  --radius:3px;
  --shadow:0 1px 3px rgba(11,37,69,0.07);
  --max-width:1180px;
}

*{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  font-family:Arial, Helvetica, sans-serif;
  color:var(--text);
  background:var(--bg);
  line-height:1.65;
}
h1,h2,h3{
  font-family:Georgia, 'Times New Roman', serif;
  color:var(--navy);
  line-height:1.25;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--navy-light);text-decoration:none;}
ul{list-style:none;}
dl dt, dl dd{margin:0;}

.container{
  width:100%;
  max-width:var(--max-width);
  margin:0 auto;
  padding:0 24px;
}

/* Skip link for accessibility */
.skip-link{
  position:absolute;
  left:-999px;
  top:auto;
  background:var(--navy);
  color:#fff;
  padding:10px 18px;
  z-index:1000;
  border-radius:0 0 8px 0;
}
.skip-link:focus{
  left:0;
  top:0;
}

/* =========================================================
   Header / Navigation (CSS-only mobile toggle)
   ========================================================= */
.nav-toggle-checkbox{
  position:absolute;
  opacity:0;
  pointer-events:none;
}

.site-header{
  background:#ffffff;
  border-bottom:1px solid var(--border);
  position:sticky;
  top:0;
  z-index:100;
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:14px 24px;
  gap:20px;
}
.brand{
  display:flex;
  align-items:center;
  gap:12px;
}
.brand-text{
  display:flex;
  flex-direction:column;
  line-height:1.2;
}
.brand-text strong{
  font-family:Georgia, serif;
  color:var(--navy);
  font-size:1.05rem;
}
.brand-text small{
  color:var(--muted);
  font-size:.75rem;
  letter-spacing:.3px;
}

.nav-toggle-btn{
  display:none;
  flex-direction:column;
  justify-content:center;
  gap:5px;
  width:34px;
  height:34px;
  cursor:pointer;
}
.nav-toggle-btn span{
  display:block;
  width:100%;
  height:3px;
  background:var(--navy);
  border-radius:2px;
}

.main-nav{
  display:flex;
  align-items:center;
  gap:24px;
  font-weight:600;
  font-size:.92rem;
}
.main-nav a{
  color:var(--text);
  padding:6px 2px;
  border-bottom:2px solid transparent;
  transition:color .2s, border-color .2s;
}
.main-nav a:hover,
.main-nav a:focus{
  color:var(--navy-light);
  border-bottom-color:var(--accent);
}
.nav-cta{
  background:var(--navy);
  color:#fff !important;
  padding:9px 18px !important;
  border-radius:999px;
  border-bottom:none !important;
}
.nav-cta:hover,
.nav-cta:focus{
  background:var(--accent-dark);
}

/* =========================================================
   Buttons
   ========================================================= */
.btn{
  display:inline-block;
  padding:13px 28px;
  border-radius:999px;
  font-weight:700;
  font-size:.95rem;
  border:2px solid transparent;
  cursor:pointer;
  transition:background-color .2s, color .2s, border-color .2s, transform .15s;
}
.btn:hover{transform:translateY(-2px);}
.btn-primary{
  background:var(--accent);
  color:#fff;
}
.btn-primary:hover{background:var(--accent-dark);}
.btn-outline{
  background:transparent;
  border-color:#fff;
  color:#fff;
}
.btn-outline:hover{background:#fff;color:var(--navy);}
.btn-block{display:block;text-align:center;width:100%;}

/* =========================================================
   Hero
   ========================================================= */
.hero{
  position:relative;
  min-height:88vh;
  display:flex;
  align-items:flex-end;
  background-size:cover;
  background-position:center 32%;
  background-color:var(--navy);
  color:#fff;
  padding-bottom:0;
  overflow:hidden;
}
/* Bottom-anchored scrim: reads as photographic lighting, not a decorative gradient card */
.hero-scrim{
  position:absolute;
  inset:0;
  background:linear-gradient(to top,
    rgba(6,20,40,0.92) 0%,
    rgba(6,20,40,0.62) 32%,
    rgba(6,20,40,0.18) 60%,
    rgba(6,20,40,0.05) 100%);
}
.hero-inner{
  position:relative;
  max-width:720px;
  padding-top:60px;
  padding-bottom:64px;
}
.hero-rule{
  width:56px;
  height:3px;
  background:var(--accent);
  margin-bottom:22px;
}
.eyebrow{
  text-transform:uppercase;
  letter-spacing:2px;
  font-size:.8rem;
  font-weight:700;
  color:#e8c98a;
  margin-bottom:14px;
}
.hero h1{
  color:#fff;
  font-size:2.75rem;
  margin-bottom:20px;
}
.hero-lede{
  color:#dfe7f2;
  font-size:1.1rem;
  margin-bottom:30px;
  max-width:600px;
}
.hero-actions{
  display:flex;
  gap:16px;
  flex-wrap:wrap;
}

/* =========================================================
   Section framework
   ========================================================= */
.section{padding:78px 0;}
.section-alt{background:var(--bg-alt);}
.section-head{
  max-width:680px;
  margin:0 auto 44px;
  text-align:center;
}
.section-kicker{
  text-transform:uppercase;
  letter-spacing:1.6px;
  font-size:.78rem;
  font-weight:700;
  color:var(--accent-dark);
  margin-bottom:10px;
}
.section-head h2{font-size:2rem;margin-bottom:12px;}
.section-sub{color:var(--muted);font-size:1.02rem;}

/* Split layout (media + text) */
.split-layout{
  display:grid;
  grid-template-columns:1fr 1.1fr;
  gap:48px;
  align-items:center;
}
.split-layout.reverse{grid-template-columns:1.1fr 1fr;}
.split-layout.reverse .split-media{order:2;}

/* Editorial figure treatment: fixed aspect ratio, full-bleed crop, no card chrome */
.figure-photo{
  margin:0;
}
.figure-photo img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  object-position:center;
  border-top:3px solid var(--navy);
}
.figure-photo figcaption{
  margin-top:10px;
  font-size:.82rem;
  color:var(--muted);
  border-left:2px solid var(--border);
  padding-left:10px;
}
.split-text .section-kicker{margin-top:0;}
.split-text h2{margin-bottom:16px;}
.split-text p{color:var(--muted);margin-bottom:16px;}
.split-text p em{color:var(--text);}

.check-list{margin:18px 0 22px;}
.check-list li{
  position:relative;
  padding-left:28px;
  margin-bottom:10px;
  color:var(--text);
  font-weight:600;
  font-size:.95rem;
}
.check-list li::before{
  content:"✓";
  position:absolute;
  left:0;
  color:var(--accent-dark);
  font-weight:800;
}

/* =========================================================
   Community section — full-bleed photo with an overlapping
   text panel, an asymmetric editorial composition rather
   than a boxed split-card layout.
   ========================================================= */
.community-section{padding:0 0 78px;}
.community-media{
  position:relative;
  width:100%;
}
.community-media img{
  width:100%;
  aspect-ratio:21/9;
  object-fit:cover;
  object-position:center;
}
.community-panel{
  background:var(--card);
  max-width:560px;
  margin-top:-90px;
  position:relative;
  z-index:2;
  padding:40px 44px;
  border-top:3px solid var(--navy);
  box-shadow:0 10px 30px rgba(11,37,69,0.12);
}
.community-panel p{color:var(--muted);margin-bottom:16px;}
.community-panel h2{margin-bottom:16px;}

/* =========================================================
   Process line (Study Overview) — a horizontal rail-line motif
   with numbered stops, in place of a generic card grid.
   ========================================================= */
.process-line{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:32px;
  position:relative;
  padding-top:34px;
}
.process-line::before{
  content:"";
  position:absolute;
  top:8px;
  left:0;
  right:0;
  height:2px;
  background:var(--border);
}
.process-stop{
  position:relative;
  padding-top:6px;
}
.process-stop::before{
  content:"";
  position:absolute;
  top:-30px;
  left:0;
  width:12px;
  height:12px;
  border-radius:50%;
  background:var(--accent);
  border:2px solid var(--card);
  box-shadow:0 0 0 2px var(--navy);
}
.process-num{
  display:block;
  font-family:Georgia, serif;
  font-weight:700;
  font-size:.9rem;
  color:var(--navy-light);
  margin-bottom:10px;
}
.process-stop h3{font-size:1.05rem;margin-bottom:8px;}
.process-stop p{color:var(--muted);font-size:.92rem;}

/* =========================================================
   Corridor documentation plates — route-dossier treatment
   (wide banner image + specification strip), not product cards.
   ========================================================= */
.corridor-list{
  display:flex;
  flex-direction:column;
  gap:56px;
}
.corridor-plate{
  display:grid;
  grid-template-columns:1.35fr 1fr;
  gap:0 40px;
  align-items:stretch;
  border-top:1px solid var(--border);
  padding-top:32px;
}
.corridor-plate.reverse{grid-template-columns:1fr 1.35fr;}
.corridor-plate.reverse .corridor-media{order:2;}
.corridor-plate.reverse .corridor-meta{order:1;}

.corridor-media{
  position:relative;
}
.corridor-media img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  object-position:center;
}
.plate-tag{
  position:absolute;
  left:0;
  bottom:0;
  font-family:'Courier New', Courier, monospace;
  font-size:.72rem;
  letter-spacing:.4px;
  text-transform:uppercase;
  color:#fff;
  background:rgba(11,37,69,0.82);
  padding:6px 12px;
}

.corridor-meta{
  display:flex;
  flex-direction:column;
  justify-content:center;
  padding:24px 0;
}
.corridor-meta h3{font-size:1.3rem;margin-bottom:16px;}
.corridor-specs{
  display:flex;
  flex-wrap:wrap;
  gap:20px 28px;
  margin-bottom:16px;
  padding-bottom:16px;
  border-bottom:1px solid var(--border);
}
.corridor-specs > div{min-width:120px;}
.corridor-specs dt{
  text-transform:uppercase;
  font-size:.68rem;
  letter-spacing:.6px;
  color:var(--muted);
  margin-bottom:3px;
}
.corridor-specs dd{
  font-weight:700;
  font-size:.9rem;
  color:var(--navy);
}
.corridor-meta p{color:var(--muted);font-size:.94rem;margin-bottom:14px;}
.text-link{font-weight:700;font-size:.9rem;}

/* =========================================================
   Stats (Findings) — a divided data strip, not boxed cards
   ========================================================= */
.stat-strip{
  display:flex;
  flex-wrap:wrap;
  border-top:1px solid var(--border);
  border-bottom:1px solid var(--border);
  margin-bottom:44px;
}
.stat-item{
  flex:1 1 0;
  min-width:180px;
  text-align:center;
  padding:28px 16px;
  border-left:1px solid var(--border);
  display:flex;
  flex-direction:column;
  gap:6px;
}
.stat-item:first-child{border-left:none;}
.stat-value{
  font-family:Georgia, serif;
  font-size:2.1rem;
  font-weight:700;
  color:var(--navy-light);
}
.stat-label{color:var(--muted);font-weight:600;font-size:.85rem;}

.findings-note{
  border-left:3px solid var(--accent);
  padding:6px 0 6px 26px;
  max-width:780px;
  margin:0 auto;
}
.findings-note h3{font-size:1.1rem;margin-bottom:10px;}
.findings-note p{color:var(--muted);}

/* =========================================================
   Updates timeline — a document-style list with date stamps,
   not boxed notification cards.
   ========================================================= */
.updates-list{
  max-width:760px;
  margin:0 auto;
  display:flex;
  flex-direction:column;
}
.update-item{
  display:flex;
  gap:24px;
  padding:24px 0;
  border-bottom:1px solid var(--border);
  align-items:flex-start;
}
.update-item:first-child{border-top:1px solid var(--border);}
.update-date{
  flex:0 0 auto;
  width:60px;
  text-align:center;
  border-right:1px solid var(--border);
  padding-right:16px;
}
.update-month{color:var(--muted);}
.update-day{color:var(--navy);}
.update-month{
  display:block;
  text-transform:uppercase;
  font-size:.7rem;
  letter-spacing:1px;
  opacity:.85;
}
.update-day{
  display:block;
  font-family:Georgia, serif;
  font-size:1.4rem;
  font-weight:700;
}
.update-body h3{font-size:1.05rem;margin-bottom:6px;}
.update-body p{color:var(--muted);font-size:.93rem;}

/* =========================================================
   Resources — a publications/document list, like a real
   agency document repository rather than product cards.
   ========================================================= */
.doc-list{
  max-width:820px;
  margin:0 auto;
  border-top:1px solid var(--border);
}
.doc-item{border-bottom:1px solid var(--border);}
.doc-item a{
  display:flex;
  align-items:center;
  gap:20px;
  padding:20px 6px;
  transition:background-color .15s;
}
.doc-item a:hover{background:var(--bg-alt);}
.doc-item a:hover .doc-arrow{transform:translateX(4px);}
.doc-type{
  flex:0 0 auto;
  width:48px;
  text-align:center;
  font-size:.68rem;
  font-weight:800;
  letter-spacing:.5px;
  color:var(--navy-light);
  border:1px solid var(--navy-light);
  padding:4px 0;
}
.doc-info{
  flex:1 1 auto;
  display:flex;
  flex-direction:column;
  gap:3px;
}
.doc-info strong{color:var(--navy);font-size:1rem;}
.doc-info span{color:var(--muted);font-size:.88rem;}
.doc-arrow{
  flex:0 0 auto;
  color:var(--accent-dark);
  font-weight:700;
  transition:transform .15s;
}

/* =========================================================
   Contact
   ========================================================= */
.contact-layout{
  display:grid;
  grid-template-columns:1.1fr 1fr;
  gap:48px;
  align-items:start;
}
.contact-info p{color:var(--muted);margin-bottom:20px;max-width:520px;}
.contact-list{margin-top:20px;}
.contact-list dt{
  font-weight:700;
  color:var(--navy);
  font-size:.85rem;
  text-transform:uppercase;
  letter-spacing:.5px;
  margin-top:16px;
}
.contact-list dd{color:var(--muted);margin-top:4px;}

.contact-card{
  background:var(--card);
  border:1px solid var(--border);
  border-top:3px solid var(--navy);
  padding:32px 28px;
}
.contact-card h3{font-size:1.2rem;margin-bottom:12px;}
.contact-card p{color:var(--muted);margin-bottom:14px;font-size:.94rem;}
.contact-card-note{
  background:var(--bg-alt);
  border-radius:8px;
  padding:14px 16px;
  font-size:.82rem;
  margin-bottom:20px;
}

/* =========================================================
   Footer
   ========================================================= */
.site-footer{
  background:var(--navy);
  color:#c6d2e4;
  padding:46px 0 30px;
}
.footer-inner{
  display:flex;
  flex-direction:column;
  align-items:center;
  text-align:center;
  gap:16px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-family:Georgia, serif;
  font-size:1.05rem;
  color:#fff;
}
.footer-nav{
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  gap:18px;
  font-size:.88rem;
}
.footer-nav a{color:#c6d2e4;}
.footer-nav a:hover{color:#fff;}
.footer-note{
  max-width:640px;
  font-size:.8rem;
  color:#9fb0c9;
}
.footer-credits{
  max-width:640px;
  font-size:.7rem;
  color:#7688a5;
  border-top:1px solid rgba(255,255,255,0.08);
  padding-top:14px;
}
.footer-copy{
  font-size:.8rem;
  color:#8496b3;
  margin-top:6px;
}

/* =========================================================
   Responsive
   ========================================================= */
@media (max-width:980px){
  .process-line{grid-template-columns:repeat(2,1fr);row-gap:44px;}
  .stat-item{min-width:45%;}
  .split-layout,
  .split-layout.reverse{grid-template-columns:1fr;}
  .split-layout.reverse .split-media{order:0;}
  .contact-layout{grid-template-columns:1fr;}

  .corridor-plate,
  .corridor-plate.reverse{grid-template-columns:1fr;gap:24px 0;}
  .corridor-plate.reverse .corridor-media{order:0;}
  .corridor-plate.reverse .corridor-meta{order:1;}
  .corridor-meta{padding:0;}

  .community-panel{
    max-width:none;
    margin-top:-60px;
    margin-left:24px;
    margin-right:24px;
  }
}

@media (max-width:768px){
  .nav-toggle-btn{display:flex;}

  .main-nav{
    position:absolute;
    top:100%;
    left:0;
    right:0;
    background:#fff;
    flex-direction:column;
    align-items:flex-start;
    gap:4px;
    padding:10px 24px 20px;
    border-bottom:1px solid var(--border);
    box-shadow:0 10px 20px rgba(11,37,69,0.08);

    max-height:0;
    overflow:hidden;
    opacity:0;
    transition:max-height .3s ease, opacity .25s ease;
  }
  .main-nav a{
    width:100%;
    padding:10px 0;
    border-bottom:1px solid var(--border);
  }
  .nav-cta{
    margin-top:8px;
    width:auto;
    display:inline-block;
  }

  .nav-toggle-checkbox:checked ~ .site-header .main-nav{
    max-height:480px;
    opacity:1;
  }

  .hero{min-height:70vh;}
  .hero-inner{padding-top:40px;padding-bottom:44px;}
  .hero h1{font-size:2rem;}

  .section{padding:56px 0;}
  .process-line{grid-template-columns:1fr 1fr;row-gap:40px;}
  .stat-strip{flex-direction:column;}
  .stat-item{border-left:none;border-top:1px solid var(--border);}
  .stat-item:first-child{border-top:none;}

  .community-media img{aspect-ratio:4/3;}
  .community-panel{
    margin-top:-48px;
    padding:28px 26px;
  }

  .update-item{flex-direction:row;}
  .doc-item a{align-items:flex-start;}
}

@media (max-width:480px){
  .hero h1{font-size:1.6rem;}
  .hero-lede{font-size:1rem;}
  .process-line{grid-template-columns:1fr;}
  .header-inner{padding:12px 16px;}
  .brand-text small{display:none;}
  .community-panel{margin-left:16px;margin-right:16px;padding:24px 20px;}
  .corridor-specs{gap:14px 20px;}
  .doc-item a{gap:14px;padding:16px 4px;}
  .doc-info span{font-size:.84rem;}
}