/* Northline Transport Advisors — shared styles */

@import url('https://fonts.googleapis.com/css2?family=Barlow+Condensed:wght@500;600;700&family=Barlow:wght@400;500;600&family=IBM+Plex+Mono:wght@500&display=swap');

:root{
  --ink: #0E1826;
  --panel: #16253A;
  --panel-2: #1C2E47;
  --steel: #8497AC;
  --line: rgba(232,226,210,0.14);
  --line-strong: rgba(232,226,210,0.28);
  --paper: #ECE6D6;
  --paper-dim: #C9C2AE;
  --amber: #E7A23A;
  --amber-soft: rgba(231,162,58,0.16);
  --max: 1140px;
  --pad: clamp(20px, 5vw, 64px);
}

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

body{
  margin: 0;
  background: var(--ink);
  color: var(--paper);
  font-family: 'Barlow', Arial, sans-serif;
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4{
  font-family: 'Barlow Condensed', Arial, sans-serif;
  font-weight: 600;
  line-height: 1.05;
  margin: 0;
  letter-spacing: 0.002em;
}

h1{ font-size: clamp(2.6rem, 2rem + 3vw, 4.4rem); font-weight: 700; }
h2{ font-size: clamp(1.9rem, 1.5rem + 1.6vw, 2.7rem); }
h3{ font-size: clamp(1.25rem, 1.1rem + 0.5vw, 1.55rem); font-weight: 600; }

p{ margin: 0 0 1em; max-width: 62ch; }
a{ color: inherit; }

.mono{
  font-family: 'IBM Plex Mono', ui-monospace, monospace;
  letter-spacing: 0.01em;
}

.container{
  max-width: var(--max);
  margin: 0 auto;
  padding-left: var(--pad);
  padding-right: var(--pad);
}

/* ---------- Header / Nav ---------- */

.site-header{
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(14,24,38,0.92);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--line);
}

.header-row{
  max-width: var(--max);
  margin: 0 auto;
  padding: 18px var(--pad);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo{
  display: flex;
  flex-direction: column;
  line-height: 1;
  text-decoration: none;
  color: var(--paper);
  flex-shrink: 0;
}
.logo .mark{
  font-family: 'Barlow Condensed', sans-serif;
  font-weight: 700;
  font-size: 1.5rem;
  letter-spacing: 0.01em;
}
.logo .sub{
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.62rem;
  color: var(--amber);
  margin-top: 3px;
  letter-spacing: 0.06em;
}

nav.main-nav{ display: flex; align-items: center; gap: 4px; }
nav.main-nav a{
  text-decoration: none;
  color: var(--steel);
  font-size: 0.96rem;
  padding: 8px 14px;
  border-radius: 2px;
  transition: color 0.15s ease;
  white-space: nowrap;
}
nav.main-nav a:hover{ color: var(--paper); }
nav.main-nav a.active{ color: var(--amber); }

.nav-toggle{ display: none; }
.nav-toggle-label{ display: none; }

.header-cta{
  border: 1px solid var(--line-strong);
  padding: 8px 16px;
  font-size: 0.92rem;
  text-decoration: none;
  color: var(--paper);
  white-space: nowrap;
  transition: border-color 0.15s ease, background 0.15s ease;
}
.header-cta:hover{ border-color: var(--amber); background: var(--amber-soft); }

@media (max-width: 860px){
  nav.main-nav{
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--panel);
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    align-items: stretch;
    padding: 8px var(--pad) 18px;
    display: none;
  }
  nav.main-nav a{ padding: 12px 4px; border-bottom: 1px solid var(--line); }
  .nav-toggle:checked ~ nav.main-nav{ display: flex; }
  .nav-toggle-label{
    display: flex;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 6px;
  }
  .nav-toggle-label span{
    width: 22px; height: 2px; background: var(--paper); display: block;
  }
  .header-cta{ display: none; }
}

/* ---------- Sections ---------- */

section{ padding: clamp(52px, 8vw, 108px) 0; }
.section-border-top{ border-top: 1px solid var(--line); }

.eyebrow-route{
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--steel);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.8rem;
  margin-bottom: 18px;
}
.eyebrow-route::before{
  content: "";
  width: 26px; height: 1px; background: var(--amber);
}

.lede{
  font-size: clamp(1.05rem, 0.95rem + 0.3vw, 1.25rem);
  color: var(--paper-dim);
  max-width: 58ch;
}

/* Paper (light) contrast section */
.panel-paper{
  background: var(--paper);
  color: var(--ink);
}
.panel-paper .steel-text{ color: #5B5340; }
.panel-paper .eyebrow-route{ color: #6B6350; }
.panel-paper .eyebrow-route::before{ background: #B4762A; }

/* ---------- Buttons ---------- */

.btn{
  display: inline-block;
  padding: 13px 26px;
  text-decoration: none;
  font-size: 0.98rem;
  border: 1px solid var(--amber);
  color: var(--ink);
  background: var(--amber);
  transition: background 0.15s ease, color 0.15s ease;
}
.btn:hover{ background: transparent; color: var(--amber); }

.btn-ghost{
  display: inline-block;
  padding: 12px 25px;
  text-decoration: none;
  font-size: 0.98rem;
  border: 1px solid var(--line-strong);
  color: var(--paper);
  background: transparent;
  transition: border-color 0.15s ease, color 0.15s ease;
}
.btn-ghost:hover{ border-color: var(--amber); color: var(--amber); }

/* ---------- Route hero graphic ---------- */

.route-diagram{ width: 100%; height: auto; display: block; }
.route-diagram .path{
  fill: none;
  stroke: var(--amber);
  stroke-width: 2;
  stroke-dasharray: 6 6;
}
.route-diagram .node{ fill: var(--ink); stroke: var(--amber); stroke-width: 2; }
.route-diagram .node-fill{ fill: var(--amber); }
.route-diagram text{
  font-family: 'IBM Plex Mono', monospace;
  fill: var(--steel);
  font-size: 12px;
}
.route-diagram text.label{ fill: var(--paper); font-size: 13px; }

/* ---------- Grids / cards ---------- */

.grid{ display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); }
.grid > *{ background: var(--ink); }

.service-grid{
  grid-template-columns: repeat(3, 1fr);
}
@media (max-width: 900px){ .service-grid{ grid-template-columns: 1fr; } }

.service-cell{
  padding: 34px 30px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.service-cell h3{ color: var(--paper); }
.service-cell p{ color: var(--paper-dim); font-size: 0.96rem; margin-bottom: 0; }
.service-cell a.cell-link{
  margin-top: auto;
  font-size: 0.9rem;
  color: var(--amber);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}
.service-cell a.cell-link:hover{ border-bottom-color: var(--amber); }

/* Stat strip */
.stat-strip{
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
@media (max-width: 760px){ .stat-strip{ grid-template-columns: repeat(2, 1fr); } }
.stat-cell{
  background: var(--ink);
  padding: 28px 22px;
}
.stat-num{
  font-family: 'IBM Plex Mono', monospace;
  color: var(--amber);
  font-size: clamp(1.7rem, 1.4rem + 1vw, 2.3rem);
  display: block;
}
.stat-cell span.stat-label{
  color: var(--steel);
  font-size: 0.86rem;
  display: block;
  margin-top: 6px;
  max-width: 22ch;
}

/* Process / sequence list */
.process-list{
  list-style: none;
  margin: 0; padding: 0;
  border-top: 1px solid var(--line);
}
.process-list li{
  display: grid;
  grid-template-columns: 70px 1fr;
  gap: 24px;
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
}
.process-list .num{
  font-family: 'IBM Plex Mono', monospace;
  color: var(--amber);
  font-size: 1.1rem;
}
.process-list h4{ font-family: 'Barlow Condensed', sans-serif; font-size: 1.3rem; font-weight: 600; margin-bottom: 6px; color: var(--paper); }
.process-list p{ color: var(--paper-dim); margin-bottom: 0; font-size: 0.97rem; }

/* Two column detail block */
.detail-row{
  display: grid;
  grid-template-columns: 1.1fr 1.4fr;
  gap: clamp(30px, 6vw, 90px);
  padding: 44px 0;
  border-bottom: 1px solid var(--line);
}
.detail-row:first-of-type{ border-top: 1px solid var(--line); }
@media (max-width: 800px){ .detail-row{ grid-template-columns: 1fr; gap: 18px; } }
.detail-row h3{ color: var(--paper); }
.detail-row .detail-body p{ color: var(--paper-dim); }
.detail-row ul{ margin: 14px 0 0; padding-left: 18px; color: var(--paper-dim); }
.detail-row li{ margin-bottom: 8px; font-size: 0.96rem; }

/* Ledger table */
.ledger{
  width: 100%;
  border-collapse: collapse;
  font-size: 0.94rem;
}
.ledger th, .ledger td{
  text-align: left;
  padding: 14px 16px;
  border-bottom: 1px solid var(--line-strong);
}
.panel-paper .ledger th, .panel-paper .ledger td{ border-bottom: 1px solid rgba(14,24,38,0.15); }
.ledger th{
  font-family: 'IBM Plex Mono', monospace;
  font-weight: 500;
  font-size: 0.78rem;
  color: var(--steel);
}
.panel-paper .ledger th{ color: #6B6350; }
.ledger td.figure{ font-family: 'IBM Plex Mono', monospace; color: var(--amber); }

/* CTA band */
.cta-band{
  background: var(--panel);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: clamp(50px, 8vw, 90px) 0;
  text-align: center;
}
.cta-band h2{ margin-bottom: 16px; }
.cta-band p{ margin: 0 auto 30px; }

/* Footer */
footer.site-footer{
  border-top: 1px solid var(--line);
  padding: 50px 0 30px;
}
.footer-grid{
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 30px;
  padding-bottom: 36px;
}
@media (max-width: 760px){ .footer-grid{ grid-template-columns: 1fr 1fr; } }
.footer-grid h4{
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.78rem;
  color: var(--steel);
  font-weight: 500;
  margin-bottom: 14px;
}
.footer-grid a{
  display: block;
  color: var(--paper-dim);
  text-decoration: none;
  font-size: 0.92rem;
  margin-bottom: 10px;
}
.footer-grid a:hover{ color: var(--amber); }
.footer-bottom{
  border-top: 1px solid var(--line);
  padding-top: 22px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  color: var(--steel);
  font-size: 0.82rem;
}

/* Contact form */
.form-grid{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
@media (max-width: 700px){ .form-grid{ grid-template-columns: 1fr; } }
.field{ display: flex; flex-direction: column; gap: 8px; }
.field.full{ grid-column: 1 / -1; }
.field label{ font-size: 0.86rem; color: var(--steel); }
.field input, .field select, .field textarea{
  background: var(--panel);
  border: 1px solid var(--line-strong);
  color: var(--paper);
  padding: 12px 14px;
  font-family: 'Barlow', sans-serif;
  font-size: 0.98rem;
}
.field textarea{ resize: vertical; min-height: 120px; }
.field input:focus, .field select:focus, .field textarea:focus{
  outline: 2px solid var(--amber);
  outline-offset: 1px;
}
.form-note{ margin-top: 18px; color: var(--steel); font-size: 0.86rem; }
.form-success{
  display: none;
  border: 1px solid var(--amber);
  background: var(--amber-soft);
  padding: 18px 20px;
  margin-top: 20px;
  font-size: 0.95rem;
}
.form-success.visible{ display: block; }

.office-card{
  border: 1px solid var(--line);
  padding: 26px 24px;
}
.office-card h4{ font-family: 'Barlow Condensed', sans-serif; font-size: 1.15rem; font-weight: 600; margin-bottom: 10px; color: var(--paper); }
.office-card p{ color: var(--paper-dim); font-size: 0.94rem; margin-bottom: 4px; }

@media (prefers-reduced-motion: reduce){
  *{ scroll-behavior: auto !important; transition: none !important; animation: none !important; }
}

:focus-visible{ outline: 2px solid var(--amber); outline-offset: 2px; }