/* InfraSen — lean, procurement-aligned, competitor-safe static site */

:root{
  --bg: #0b1220;
  --surface: #0f1a2e;
  --surface-2:#12213a;
  --text: #eaf0ff;
  --muted: #b8c3e6;
  --border: rgba(234,240,255,.12);
  --link: #cfe0ff;
  --accent: #6aa7ff;
  --accent-2:#9bd0ff;
  --shadow: 0 12px 30px rgba(0,0,0,.28);
  --radius: 16px;
  --radius-lg: 22px;
  --max: 1120px;
  --pad: 20px;
  --font: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji";
  --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono","Courier New", monospace;
}

*{ box-sizing:border-box; }
html,body{ height:100%; }
body{
  margin:0;
  font-family: var(--font);
  color: var(--text);
  background:
    radial-gradient(900px 450px at 12% 10%, rgba(106,167,255,.14), transparent 55%),
    radial-gradient(700px 380px at 92% 18%, rgba(155,208,255,.10), transparent 60%),
    linear-gradient(180deg, var(--bg), #070b14 80%);
  line-height:1.5;
}

a{ color: var(--link); text-decoration:none; }
a:hover{ text-decoration:underline; }
small{ color: var(--muted); }
p{ margin: 0 0 14px; color: rgba(234,240,255,.92); }
h1,h2,h3{ margin:0 0 10px; line-height:1.2; letter-spacing:-.01em; }
h1{ font-size: clamp(28px, 4vw, 46px); }
h2{ font-size: clamp(20px, 2.3vw, 28px); }
h3{ font-size: 18px; color: rgba(234,240,255,.96); }
ul{ margin: 10px 0 0 18px; padding:0; }
li{ margin: 6px 0; color: rgba(234,240,255,.90); }

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

.skip-link{
  position:absolute; left:-999px; top:auto;
  width:1px; height:1px; overflow:hidden;
}
.skip-link:focus{
  left: 14px; top: 14px;
  width:auto; height:auto;
  padding: 10px 12px;
  background: #111b30;
  border: 1px solid var(--border);
  border-radius: 10px;
  z-index: 9999;
}

.site-header{
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(12px);
  background: rgba(7, 11, 20, .65);
  border-bottom: 1px solid var(--border);
}

.nav{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 16px;
  padding: 14px 0;
}

.brand{
  display:flex;
  gap: 10px;
  align-items:center;
  min-width: 180px;
}
.logo{
  width: 34px; height: 34px;
  border-radius: 10px;
  background:
    linear-gradient(135deg, rgba(106,167,255,.8), rgba(155,208,255,.4)),
    radial-gradient(12px 12px at 70% 30%, rgba(255,255,255,.35), transparent 60%);
  border: 1px solid rgba(234,240,255,.14);
  box-shadow: 0 10px 20px rgba(0,0,0,.18);
}
.brand-name{
  font-weight: 700;
  letter-spacing: .02em;
  font-size: 14px;
  color: rgba(234,240,255,.92);
}
.brand-tag{
  font-size: 12px;
  color: var(--muted);
}

.nav-links{
  display:flex;
  flex-wrap:wrap;
  gap: 14px;
  align-items:center;
  justify-content:flex-end;
}

.nav-links a{
  font-size: 13px;
  padding: 8px 10px;
  border-radius: 10px;
  border: 1px solid transparent;
  color: rgba(234,240,255,.88);
}
.nav-links a[aria-current="page"]{
  background: rgba(234,240,255,.06);
  border-color: rgba(234,240,255,.10);
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: 12px;
  border: 1px solid rgba(234,240,255,.14);
  background: rgba(234,240,255,.06);
  color: rgba(234,240,255,.95);
  text-decoration:none;
  cursor:pointer;
  box-shadow: 0 6px 14px rgba(0,0,0,.20);
}
.btn:hover{
  background: rgba(234,240,255,.10);
  text-decoration:none;
}
.btn.primary{
  background: linear-gradient(135deg, rgba(106,167,255,.95), rgba(155,208,255,.55));
  border-color: rgba(155,208,255,.35);
  color: #071023;
  font-weight: 700;
}
.btn.primary:hover{
  filter: brightness(1.02);
}

.hero{
  padding: 40px 0 10px;
}
.hero-grid{
  display:grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 22px;
  align-items:stretch;
}
@media (max-width: 900px){
  .hero-grid{ grid-template-columns: 1fr; }
}
.card{
  background: linear-gradient(180deg, rgba(15,26,46,.92), rgba(15,26,46,.72));
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}
.card.pad{ padding: 22px; }

.hero-media{
  overflow:hidden;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  min-height: 280px;
  background:
    linear-gradient(90deg, rgba(0,0,0,.30), rgba(0,0,0,.12)),
    url("../assets/hero-corridor.png");
  background-size: cover;
  background-position: center;
  position:relative;
}

.hero-media-lidar{
  overflow:hidden;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  min-height: 280px;
  background:
    linear-gradient(90deg, rgba(0,0,0,.30), rgba(0,0,0,.12)),
    url("../assets/hero-lidar.png");
  background-size: cover;
  background-position: center;
  position:relative;
}

.hero-media::after{
  content:"";
  position:absolute; inset:0;
  background:
    linear-gradient(180deg, rgba(7,11,20,.10), rgba(7,11,20,.65));
  pointer-events:none;
}
.hero-kicker{
  display:inline-block;
  font-family: var(--mono);
  font-size: 12px;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid rgba(234,240,255,.14);
  background: rgba(234,240,255,.06);
  color: rgba(234,240,255,.90);
  margin-bottom: 12px;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap: 10px;
  margin-top: 14px;
}
.note{
  margin-top: 14px;
  font-size: 12px;
  color: var(--muted);
}

.section{
  padding: 26px 0;
}
.section-title{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap: 16px;
  margin-bottom: 14px;
}
.section-title p{
  margin: 0;
  color: var(--muted);
  max-width: 72ch;
}

.grid-3{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
@media (max-width: 980px){
  .grid-3{ grid-template-columns: 1fr; }
}

.tile{
  padding: 18px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(18,33,58,.70), rgba(18,33,58,.40));
}
.tile h3{ margin-bottom: 6px; }
.tile p{ color: rgba(234,240,255,.86); }

.hr{
  height: 1px;
  background: var(--border);
  margin: 18px 0;
}

.split{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
@media (max-width: 900px){
  .split{ grid-template-columns: 1fr; }
}
.media{
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  min-height: 230px;
  background:
    linear-gradient(90deg, rgba(0,0,0,.26), rgba(0,0,0,.12)),
    url("../assets/raw-vs-gis.png");
  background-size: cover;
  background-position: center;
  box-shadow: var(--shadow);
  position:relative;
  overflow:hidden;
}
.media .label{
  position:absolute;
  bottom: 14px;
  left: 14px;
  right: 14px;
  padding: 10px 12px;
  border-radius: 14px;
  border: 1px solid rgba(234,240,255,.14);
  background: rgba(7,11,20,.60);
  backdrop-filter: blur(10px);
  font-size: 13px;
  color: rgba(234,240,255,.90);
}

.page-hero{
  padding: 34px 0 10px;
}
.page-hero .banner{
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  overflow:hidden;
  box-shadow: var(--shadow);
  min-height: 220px;
  background:
    linear-gradient(90deg, rgba(0,0,0,.28), rgba(0,0,0,.10)),
    url("../assets/page2-banner.png");
  background-size: cover;
  background-position: center;
  position:relative;
}
.page-hero .banner::after{
  content:"";
  position:absolute; inset:0;
  background: linear-gradient(180deg, rgba(7,11,20,.10), rgba(7,11,20,.70));
  pointer-events:none;
}
.page-hero .banner-inner{
  position:relative;
  padding: 22px;
  max-width: 72ch;
}
.badge-row{
  display:flex; flex-wrap:wrap; gap: 8px;
  margin-top: 12px;
}
.badge{
  font-size: 12px;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid rgba(234,240,255,.14);
  background: rgba(234,240,255,.06);
  color: rgba(234,240,255,.90);
}

.form{
  display:grid;
  gap: 10px;
}
.field{
  display:grid;
  gap: 6px;
}
label{
  font-size: 12px;
  color: rgba(234,240,255,.88);
}
input, select, textarea{
  width: 100%;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid rgba(234,240,255,.14);
  background: rgba(234,240,255,.06);
  color: rgba(234,240,255,.95);
  outline:none;
}
textarea{ min-height: 120px; resize: vertical; }
input::placeholder, textarea::placeholder{ color: rgba(184,195,230,.75); }
input:focus, select:focus, textarea:focus{
  border-color: rgba(106,167,255,.55);
  box-shadow: 0 0 0 4px rgba(106,167,255,.18);
}

.form-grid{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
@media (max-width: 900px){
  .form-grid{ grid-template-columns: 1fr; }
}

.proc-note{
  margin-top: 12px;
  font-size: 12px;
  color: var(--muted);
  border-left: 3px solid rgba(106,167,255,.6);
  padding-left: 12px;
}

.site-footer{
  margin-top: 34px;
  border-top: 1px solid var(--border);
  background: rgba(7,11,20,.55);
}
.footer-inner{
  padding: 18px 0;
  display:grid;
  gap: 10px;
}
.footer-row{
  display:flex;
  flex-wrap:wrap;
  gap: 12px;
  justify-content:space-between;
  align-items:flex-start;
}
.footer-links{
  display:flex;
  flex-wrap:wrap;
  gap: 10px;
  font-size: 13px;
  color: var(--muted);
}
.footer-links a{ color: rgba(234,240,255,.82); }
.footer-meta{
  font-size: 12px;
  color: var(--muted);
}