/* =========================================================
   FLEETKAM — Design tokens
   Palette drawn from brand material: deep navy chassis,
   signal cyan (sensor/detection color used throughout the
   PDFs), amber for alerts, warm steel for neutrals.
   ========================================================= */
:root{
  --navy-950:#081226;
  --navy-900:#0b1f3a;
  --navy-800:#123258;
  --navy-700:#194077;
  --blue-600:#1c5fb0;
  --cyan-400:#17c3d6;
  --cyan-300:#5fe3ef;
  --amber-500:#f2a71b;
  --steel-700:#3c4657;
  --steel-500:#657182;
  --steel-300:#aab3bf;
  --cloud-100:#f4f6f9;
  --cloud-50:#fbfcfd;
  --white:#ffffff;
  --line:#e3e8ee;

  --font-display:"Space Grotesk", "Segoe UI", sans-serif;
  --font-body:"IBM Plex Sans", "Segoe UI", sans-serif;
  --font-mono:"IBM Plex Mono", "Courier New", monospace;

  --container:1220px;
  --radius:10px;
  --shadow-sm:0 1px 2px rgba(11,31,58,.06), 0 1px 1px rgba(11,31,58,.04);
  --shadow-md:0 8px 24px rgba(11,31,58,.10);
  --shadow-lg:0 20px 48px rgba(11,31,58,.16);
}

@media (prefers-reduced-motion: no-preference){
  :root{ --transition:180ms ease; }
}
@media (prefers-reduced-motion: reduce){
  *{ animation-duration:.001ms !important; animation-iteration-count:1 !important; transition-duration:.001ms !important; scroll-behavior:auto !important; }
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  font-family:var(--font-body);
  color:var(--steel-700);
  background:var(--white);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
h1,h2,h3,h4{ font-family:var(--font-display); color:var(--navy-900); margin:0 0 .5em; line-height:1.15; letter-spacing:-.01em; }
p{ margin:0 0 1em; }
.container{ max-width:var(--container); margin:0 auto; padding:0 24px; }
.mono{ font-family:var(--font-mono); }

:focus-visible{ outline:3px solid var(--cyan-400); outline-offset:2px; border-radius:4px; }

/* ---------- Skip link ---------- */
.skip-link{
  position:absolute; left:-9999px; top:0; background:var(--navy-900); color:#fff;
  padding:12px 18px; z-index:200; border-radius:0 0 8px 0;
}
.skip-link:focus{ left:0; }

/* ---------- Eyebrow / labels ---------- */
.eyebrow{
  display:inline-flex; align-items:center; gap:8px;
  font-family:var(--font-mono); font-size:.72rem; letter-spacing:.14em; text-transform:uppercase;
  color:var(--cyan-400); font-weight:600; margin-bottom:14px;
}
.eyebrow::before{ content:""; width:18px; height:2px; background:var(--cyan-400); display:inline-block; }

/* ---------- Header ---------- */
.site-header{
  position:sticky; top:0; z-index:100; background:rgba(255,255,255,.94);
  backdrop-filter:saturate(140%) blur(8px);
  border-bottom:1px solid var(--line);
}
.header-inner{ display:flex; align-items:center; justify-content:space-between; padding:12px 24px; max-width:var(--container); margin:0 auto; }
.brand{ display:flex; align-items:center; gap:10px; }
.brand img{ height:24px; width:auto; }
.brand-text{ font-family:var(--font-display); font-weight:700; font-size:1.05rem; color:var(--navy-900); }

.nav-toggle{
  display:none; background:none; border:1px solid var(--line); border-radius:8px;
  width:42px; height:42px; align-items:center; justify-content:center; cursor:pointer;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after{
  content:""; display:block; width:20px; height:2px; background:var(--navy-900); position:relative; transition:transform var(--transition);
}
.nav-toggle span::before{ position:absolute; top:-6px; }
.nav-toggle span::after{ position:absolute; top:6px; }

.main-nav{ display:flex; align-items:center; gap:2px; }
.main-nav a{
  padding:10px 14px; font-size:.92rem; font-weight:500; color:var(--steel-700); border-radius:8px;
  transition:color var(--transition), background var(--transition);
}
.main-nav a:hover{ color:var(--navy-900); background:var(--cloud-100); }
.main-nav a[aria-current="page"]{ color:var(--navy-900); font-weight:700; }
.main-nav a[aria-current="page"]::after{ content:""; }
.nav-cta{
  margin-left:8px; background:var(--navy-900); color:#fff !important; padding:10px 18px !important;
  border-radius:999px; font-weight:600 !important;
}
.nav-cta:hover{ background:var(--blue-600); }

@media (max-width:900px){
  .nav-toggle{ display:flex; }
  .main-nav{
    position:fixed; inset:64px 0 0 0; background:#fff; flex-direction:column; align-items:stretch;
    padding:12px; gap:4px; transform:translateY(-8px); opacity:0; pointer-events:none;
    transition:opacity var(--transition), transform var(--transition); overflow:auto;
  }
  .main-nav.open{ opacity:1; transform:translateY(0); pointer-events:auto; }
  .main-nav a{ padding:16px; font-size:1.05rem; border-bottom:1px solid var(--line); border-radius:0; }
  .nav-cta{ margin:12px 0 0; text-align:center; border-radius:8px; }
}

/* ---------- Breadcrumbs ---------- */
.breadcrumbs{ font-size:.82rem; color:var(--steel-500); padding:16px 0 0; }
.breadcrumbs a{ color:var(--steel-500); }
.breadcrumbs a:hover{ color:var(--navy-900); text-decoration:underline; }
.breadcrumbs span[aria-current]{ color:var(--navy-900); font-weight:600; }

/* ---------- Hero ---------- */
.hero{
  position:relative; overflow:hidden; background:var(--navy-950); color:#fff; padding:72px 0 88px;
}
.hero .container{ position:relative; z-index:2; }
.hero-rings{
  position:absolute; inset:0; z-index:1; pointer-events:none; opacity:.55;
}
.hero-grid{ display:grid; grid-template-columns:1.05fr .95fr; gap:48px; align-items:center; }
.hero h1{ color:#fff; font-size:clamp(2rem,4.2vw,3.1rem); max-width:16ch; }
.hero p.lead{ color:#c9d3e2; font-size:1.12rem; max-width:52ch; }
.hero-media{ border-radius:16px; overflow:hidden; box-shadow:var(--shadow-lg); border:1px solid rgba(255,255,255,.12); }
.hero-actions{ display:flex; gap:14px; flex-wrap:wrap; margin-top:28px; }

@media (max-width:900px){ .hero-grid{ grid-template-columns:1fr; } .hero{ padding:48px 0 56px; } }

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex; align-items:center; gap:8px; padding:13px 22px; border-radius:999px;
  font-weight:600; font-size:.95rem; border:1px solid transparent; cursor:pointer;
  transition:transform var(--transition), background var(--transition), border-color var(--transition), color var(--transition);
}
.btn:hover{ transform:translateY(-1px); }
.btn-primary{ background:var(--cyan-400); color:var(--navy-950); }
.btn-primary:hover{ background:var(--cyan-300); }
.btn-outline{ border-color:rgba(255,255,255,.4); color:#fff; }
.btn-outline:hover{ border-color:#fff; background:rgba(255,255,255,.08); }
.btn-dark{ background:var(--navy-900); color:#fff; }
.btn-dark:hover{ background:var(--blue-600); }
.btn[disabled], .btn.is-disabled{ opacity:.45; cursor:not-allowed; pointer-events:none; }

/* ---------- Sections ---------- */
.section{ padding:88px 0; }
.section-tight{ padding:56px 0; }
.section-alt{ background:var(--cloud-100); }
.section-dark{ background:var(--navy-950); color:#dfe6f0; }
.section-dark h2, .section-dark h3{ color:#fff; }
.section-head{ max-width:760px; margin-bottom:44px; }
.section-head.center{ margin-left:auto; margin-right:auto; text-align:center; }

/* ---------- Cards ---------- */
.grid{ display:grid; gap:28px; }
.grid-3{ grid-template-columns:repeat(3,1fr); }
.grid-2{ grid-template-columns:repeat(2,1fr); }
.grid-4{ grid-template-columns:repeat(4,1fr); }
@media (max-width:980px){ .grid-3,.grid-4{ grid-template-columns:repeat(2,1fr); } }
@media (max-width:640px){ .grid-3,.grid-4,.grid-2{ grid-template-columns:1fr; } }

.card{
  background:#fff; border:1px solid var(--line); border-radius:var(--radius); overflow:hidden;
  transition:box-shadow var(--transition), transform var(--transition), border-color var(--transition);
  display:flex; flex-direction:column;
}
.card:hover{ box-shadow:var(--shadow-md); transform:translateY(-2px); border-color:transparent; }
.card-media{ aspect-ratio:16/10; overflow:hidden; background:var(--cloud-100); }
.card-media img{ width:100%; height:100%; object-fit:cover; }
.card-body{ padding:22px; flex:1; display:flex; flex-direction:column; }
.card-body h3{ font-size:1.12rem; }
.card-tag{ font-family:var(--font-mono); font-size:.7rem; letter-spacing:.08em; text-transform:uppercase; color:var(--cyan-400); font-weight:700; margin-bottom:8px; }
.card-body p{ color:var(--steel-500); font-size:.93rem; margin-bottom:0; }
.card-link{ margin-top:16px; font-weight:600; color:var(--navy-900); font-size:.9rem; display:inline-flex; align-items:center; gap:6px; }
.card-link .arrow{ transition:transform var(--transition); }
.card:hover .card-link .arrow{ transform:translateX(3px); }

/* Application (solution) cards - larger */
.app-card{
  position:relative; border-radius:14px; overflow:hidden; color:#fff; min-height:340px;
  display:flex; flex-direction:column; justify-content:flex-end; box-shadow:var(--shadow-sm);
}
.app-card img{ position:absolute; inset:0; width:100%; height:100%; object-fit:cover; z-index:0; }
.app-card::after{ content:""; position:absolute; inset:0; background:linear-gradient(180deg, rgba(8,18,38,.05) 20%, rgba(8,18,38,.92) 100%); z-index:1; }
.app-card-body{ position:relative; z-index:2; padding:26px; }
.app-card h3{ color:#fff; font-size:1.4rem; margin-bottom:8px; }
.app-card p{ color:#d7deea; font-size:.92rem; }
.app-card .card-link{ color:#fff; }

/* ---------- Spec / product tiles ---------- */
.spec-tile{
  border:1px solid var(--line); border-radius:var(--radius); padding:20px; background:#fff;
}
.spec-tile .model{ font-family:var(--font-mono); font-size:.82rem; color:var(--cyan-400); font-weight:700; letter-spacing:.02em; }
.spec-tile h4{ font-family:var(--font-display); color:var(--navy-900); margin:.2em 0 .5em; font-size:1.02rem; }
.spec-tile ul{ margin:0; padding-left:1.1em; color:var(--steel-500); font-size:.88rem; }
.spec-tile ul li{ margin-bottom:4px; }
.spec-tile .area-tag{
  display:inline-block; font-size:.68rem; text-transform:uppercase; letter-spacing:.06em; font-weight:700;
  padding:3px 9px; border-radius:999px; margin-bottom:10px;
}
.tag-trucks{ background:#e7f1fc; color:var(--blue-600); }
.tag-public{ background:#e6faf9; color:#0d9aa0; }
.tag-machinery{ background:#fff2e0; color:#b8710a; }
.tag-tech{ background:#eef0fb; color:var(--navy-700); }

/* ---------- Feature row (icon + text) ---------- */
.feature{ display:flex; gap:16px; align-items:flex-start; }
.feature-icon{
  flex:none; width:46px; height:46px; border-radius:12px; background:var(--navy-900); color:var(--cyan-400);
  display:flex; align-items:center; justify-content:center; font-family:var(--font-mono); font-weight:700;
}
.feature h4{ margin-bottom:4px; font-size:1rem; }
.feature p{ font-size:.9rem; color:var(--steel-500); margin-bottom:0; }

/* ---------- Diagram figure ---------- */
.diagram-figure{ border:1px solid var(--line); border-radius:var(--radius); overflow:hidden; background:#fff; }
.diagram-figure img{ width:100%; }
.diagram-figure figcaption{ padding:16px 20px; font-size:.85rem; color:var(--steel-500); border-top:1px solid var(--line); }
.diagram-block{ display:grid; grid-template-columns:.9fr 1.1fr; gap:36px; align-items:center; margin-bottom:64px; }
.diagram-block:nth-child(even){ grid-template-columns:1.1fr .9fr; }
.diagram-block:nth-child(even) .diagram-text{ order:2; }
@media (max-width:900px){
  .diagram-block, .diagram-block:nth-child(even){ grid-template-columns:1fr; }
  .diagram-block:nth-child(even) .diagram-text{ order:0; }
}
.diagram-text .kicker{ font-family:var(--font-mono); font-size:.72rem; color:var(--cyan-400); letter-spacing:.1em; text-transform:uppercase; font-weight:700; }

/* ---------- Problem / approach panel ---------- */
.problem-panel{
  display:grid; grid-template-columns:1fr 1fr; gap:32px; background:var(--cloud-100); border-radius:16px; padding:36px;
}
@media (max-width:800px){ .problem-panel{ grid-template-columns:1fr; } }
.problem-panel h3{ font-size:1.05rem; }
.problem-panel .col p{ color:var(--steel-700); font-size:.96rem; }

/* ---------- Placeholder (pending assets) ---------- */
.placeholder{
  border:2px dashed var(--steel-300); border-radius:var(--radius); background:var(--cloud-100);
  display:flex; align-items:center; justify-content:center; text-align:center; padding:28px;
  color:var(--steel-500); font-size:.85rem; min-height:160px;
}

/* ---------- Regulation chips ---------- */
.chip-row{ display:flex; flex-wrap:wrap; gap:10px; margin:18px 0; }
.chip{
  font-family:var(--font-mono); font-size:.76rem; font-weight:700; padding:7px 12px; border-radius:8px;
  border:1px solid var(--line); color:var(--navy-800); background:#fff;
}

/* ---------- Footer ---------- */
.site-footer{ background:var(--navy-950); color:#aab3c2; padding:56px 0 28px; }
.footer-grid{ display:grid; grid-template-columns:1.4fr repeat(3,1fr); gap:32px; margin-bottom:40px; }
@media (max-width:800px){ .footer-grid{ grid-template-columns:1fr 1fr; } }
@media (max-width:520px){ .footer-grid{ grid-template-columns:1fr; } }
.footer-grid h5{ color:#fff; font-family:var(--font-display); font-size:.85rem; letter-spacing:.06em; text-transform:uppercase; margin-bottom:14px; }
.footer-grid ul{ list-style:none; margin:0; padding:0; display:flex; flex-direction:column; gap:9px; }
.footer-grid a{ color:#aab3c2; font-size:.9rem; }
.footer-grid a:hover{ color:#fff; }
.footer-brand{ display:flex; align-items:center; gap:10px; margin-bottom:14px; }
.footer-brand img{ height:40px; width:auto; background:#fff; padding:6px 10px; border-radius:8px; }
.footer-note{ font-size:.82rem; color:#7c879b; max-width:46ch; }
.footer-bottom{ border-top:1px solid rgba(255,255,255,.1); padding-top:22px; font-size:.8rem; display:flex; justify-content:space-between; flex-wrap:wrap; gap:10px; color:#7c879b; }

/* ---------- Icon strip (from source material) ---------- */
.icon-strip{ display:flex; flex-wrap:wrap; gap:26px; justify-content:center; padding:28px 0; border-top:1px solid var(--line); border-bottom:1px solid var(--line); }
.icon-strip .item{ display:flex; flex-direction:column; align-items:center; gap:8px; width:88px; text-align:center; }
.icon-strip .item span{ font-size:.72rem; color:var(--steel-500); }
.icon-strip .item svg{ width:30px; height:30px; color:var(--cyan-400); }

/* ---------- 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:6px; }
.field.full{ grid-column:1/-1; }
.field label{ font-size:.85rem; font-weight:600; color:var(--navy-900); }
.field .req{ color:var(--amber-500); }
.field input, .field select, .field textarea{
  font-family:var(--font-body); font-size:.95rem; padding:12px 14px; border:1px solid var(--line);
  border-radius:8px; background:#fff; color:var(--steel-700); transition:border-color var(--transition), box-shadow var(--transition);
}
.field input:focus, .field select:focus, .field textarea:focus{ border-color:var(--cyan-400); box-shadow:0 0 0 3px rgba(23,195,214,.18); outline:none; }
.field .error-msg{ color:#c23b3b; font-size:.8rem; min-height:1.1em; }
.field.has-error input, .field.has-error select, .field.has-error textarea{ border-color:#c23b3b; }
.form-status{ padding:14px 16px; border-radius:8px; font-size:.9rem; margin-top:18px; display:none; }
.form-status.visible{ display:block; }
.form-status.pending{ background:#fff6e0; color:#8a5c00; display:block; }
.form-status.disabled-note{ background:var(--cloud-100); color:var(--steel-500); }

/* ---------- Filter bar ---------- */
.filter-bar{ display:flex; flex-wrap:wrap; gap:10px; margin-bottom:36px; }
.filter-bar button{
  font-family:var(--font-body); font-weight:600; font-size:.86rem; padding:9px 18px; border-radius:999px;
  border:1px solid var(--line); background:#fff; color:var(--steel-700); cursor:pointer; transition:all var(--transition);
}
.filter-bar button[aria-pressed="true"]{ background:var(--navy-900); color:#fff; border-color:var(--navy-900); }
.filter-bar button:hover{ border-color:var(--navy-900); }

/* ---------- Utility ---------- */
.mt-0{ margin-top:0; } .mb-0{ margin-bottom:0; }
.text-center{ text-align:center; }
.small{ font-size:.85rem; color:var(--steel-500); }
.pending-note{
  display:inline-flex; align-items:center; gap:6px; font-size:.72rem; font-weight:700; letter-spacing:.04em;
  text-transform:uppercase; color:#8a5c00; background:#fff6e0; padding:4px 10px; border-radius:999px;
}
.contact-email{
  display:inline-flex; align-items:center; gap:8px; font-family:var(--font-mono); font-weight:600;
  font-size:.95rem; color:var(--navy-900); background:var(--cloud-100); padding:10px 16px; border-radius:8px;
  border:1px solid var(--line);
}
.contact-email:hover{ border-color:var(--cyan-400); color:var(--blue-600); }
.footer-email{ color:#dfe6f0 !important; font-weight:600; }
.footer-email:hover{ color:#fff !important; text-decoration:underline; }
.sr-only{ position:absolute; width:1px; height:1px; padding:0; margin:-1px; overflow:hidden; clip:rect(0,0,0,0); border:0; }

.toc{ display:flex; flex-wrap:wrap; gap:10px; margin:28px 0 0; }
.toc a{ border:1px solid var(--line); border-radius:999px; padding:9px 16px; font-size:.85rem; font-weight:600; color:var(--navy-800); }
.toc a:hover{ background:var(--cloud-100); }

.back-top{
  position:fixed; right:20px; bottom:20px; background:var(--navy-900); color:#fff; width:46px; height:46px;
  border-radius:50%; display:flex; align-items:center; justify-content:center; box-shadow:var(--shadow-md);
  opacity:0; pointer-events:none; transition:opacity var(--transition), transform var(--transition); z-index:80;
}
.back-top.visible{ opacity:1; pointer-events:auto; }
.back-top:hover{ transform:translateY(-3px); }

/* CARD COMPONENT */
.card{
  background:#fff; border:1px solid var(--line); border-radius:8px; overflow:hidden;
  transition:border-color .2s, box-shadow .2s;
}
.card:hover{ border-color:var(--cyan-400); box-shadow:0 4px 12px rgba(23,195,214,.12); }
.card-media{ height:120px; background:#f0f2f5; }
.card-body{ padding:20px; }
.card-body h3{ font-size:1.1rem; margin:0 0 10px; color:var(--navy-900); }
.card-body p{ margin:8px 0; font-size:.95rem; color:var(--steel-700); }
.card-body a{ color:var(--cyan-400); text-decoration:none; font-weight:600; }
.card-body a:hover{ text-decoration:underline; }