/* Imprecision Systems LLC — site styles */

:root {
  --navy-900: #011c2b;
  --navy-800: #032b41;
  --navy-700: #06405d;
  --cyan-500: #00b3e3;
  --cyan-600: #0093bd;
  --ink: #10222c;
  --ink-muted: #526472;
  --rule: #dde5ea;
  --bg: #ffffff;
  --bg-alt: #f4f8fa;
  --bg-deep: var(--navy-900);
  --radius: 10px;
  --maxw: 1120px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue",
    Arial, "Noto Sans", sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.62;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; }

a { color: var(--cyan-600); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3 { line-height: 1.2; letter-spacing: -0.015em; margin: 0 0 0.5em; }
h1 { font-size: clamp(2.1rem, 5.2vw, 3.4rem); font-weight: 700; }
h2 { font-size: clamp(1.5rem, 3.2vw, 2.1rem); font-weight: 700; }
h3 { font-size: 1.08rem; font-weight: 650; }
p { margin: 0 0 1em; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.76rem;
  font-weight: 700;
  color: var(--cyan-600);
  margin: 0 0 0.9em;
}

/* ---------- header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--rule);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 68px;
}

.brand img { height: 40px; width: auto; display: block; }

.site-nav { display: flex; gap: 26px; align-items: center; flex-wrap: wrap; }
.site-nav a {
  color: var(--ink);
  font-size: 0.94rem;
  font-weight: 550;
}
.site-nav a:hover { color: var(--cyan-600); text-decoration: none; }

/* ---------- buttons ---------- */

.btn {
  display: inline-block;
  padding: 12px 22px;
  border-radius: var(--radius);
  font-weight: 650;
  font-size: 0.96rem;
  border: 1px solid transparent;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--cyan-500); color: #00222e; }
.btn-primary:hover { background: var(--cyan-600); color: #fff; }
.btn-ghost { border-color: rgba(255, 255, 255, 0.38); color: #fff; }
.btn-ghost:hover { border-color: #fff; background: rgba(255, 255, 255, 0.1); }
.btn-outline { border-color: var(--rule); color: var(--ink); background: #fff; }
.btn-outline:hover { border-color: var(--cyan-500); color: var(--cyan-600); }

/* ---------- hero ---------- */

.hero {
  position: relative;
  isolation: isolate;
  background: linear-gradient(180deg, var(--navy-900), var(--navy-800));
  color: #eaf3f8;
  padding: 92px 0 84px;
  overflow: hidden;
}

/* photograph, then the tint that keeps the type readable over it */
.hero::before,
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
}
.hero::before {
  background: url("img/hero-board.jpg") center / cover no-repeat;
  opacity: 0.34;
}
.hero::after {
  background:
    radial-gradient(900px 420px at 82% -12%, rgba(0, 179, 227, 0.3), transparent 62%),
    linear-gradient(105deg, rgba(1, 28, 43, 0.95) 34%, rgba(1, 28, 43, 0.62) 100%);
}
.hero h1 { color: #fff; max-width: 17ch; }
.hero .lede {
  font-size: clamp(1.05rem, 2.1vw, 1.28rem);
  color: #b6cfdd;
  max-width: 62ch;
  margin-bottom: 1.9em;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

.hero-facts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 20px 32px;
  margin-top: 64px;
  padding-top: 34px;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
}
.hero-facts dt {
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.13em;
  color: #7fa8bd;
  font-weight: 700;
  margin-bottom: 6px;
}
.hero-facts dd { margin: 0; font-size: 1.02rem; color: #e6f2f8; font-weight: 550; }

/* ---------- sections ---------- */

section { padding: 84px 0; }

/* the header is sticky, so an anchored section must clear it */
section[id] { scroll-margin-top: 76px; }
section.alt { background: var(--bg-alt); border-block: 1px solid var(--rule); }
.section-head { max-width: 66ch; margin-bottom: 48px; }
.section-head p { color: var(--ink-muted); font-size: 1.06rem; margin-bottom: 0; }

/* ---------- service cards ---------- */

/* min(100%, N) rather than a bare N: a bare track floor is a MINIMUM the grid
   refuses to go under, so on a viewport narrower than N + the wrap padding it
   pushes the page wider than the screen and the whole body scrolls sideways.
   Measured at 320px before this: body scrollWidth 348 vs 320 viewport. */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 288px), 1fr));
  gap: 22px;
}

.card {
  background: #fff;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.15s ease, transform 0.15s ease;
  display: flex;
  flex-direction: column;
}
.card:hover { border-color: var(--cyan-500); transform: translateY(-2px); }

.card-media {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  background: var(--bg-alt);
  border-bottom: 1px solid var(--rule);
  filter: saturate(0.92);
}
.card:hover .card-media { filter: saturate(1); }

.card-body { padding: 22px 24px 24px; }
.card h3 { margin-bottom: 0.45em; color: var(--navy-800); }
.card p { color: var(--ink-muted); font-size: 0.96rem; margin-bottom: 0.9em; }
.card ul { margin: 0; padding-left: 1.15em; color: var(--ink-muted); font-size: 0.92rem; }
.card li { margin-bottom: 0.3em; }

.card-num {
  display: block;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  color: var(--cyan-600);
  margin-bottom: 12px;
}

/* ---------- full-bleed statement band ---------- */

.band {
  position: relative;
  isolation: isolate;
  padding: 96px 0;
  color: #eaf3f8;
  background: var(--navy-900);
  overflow: hidden;
  border-block: none;
}
.band::before,
.band::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
}
.band::before {
  background: url("img/band-circuit.jpg") center / cover no-repeat;
  opacity: 0.55;
}
.band::after {
  background: linear-gradient(100deg, rgba(1, 28, 43, 0.94) 30%, rgba(1, 28, 43, 0.55) 100%);
}
.band blockquote {
  margin: 0;
  max-width: 26ch;
  font-size: clamp(1.4rem, 3.1vw, 2.05rem);
  line-height: 1.28;
  font-weight: 650;
  letter-spacing: -0.015em;
  color: #fff;
}
.band .band-note {
  margin: 20px 0 0;
  max-width: 56ch;
  color: #b6cfdd;
}

/* ---------- engagement / two-col ---------- */

.split {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr));
  gap: 44px;
  align-items: start;
}

.steps { list-style: none; margin: 0; padding: 0; counter-reset: step; }
.steps li {
  counter-increment: step;
  position: relative;
  padding: 0 0 22px 52px;
  border-left: 2px solid var(--rule);
  margin-left: 15px;
}
.steps li:last-child { border-left-color: transparent; padding-bottom: 0; }
.steps li::before {
  content: counter(step);
  position: absolute;
  left: -16px;
  top: -2px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--navy-800);
  color: #fff;
  font-size: 0.85rem;
  font-weight: 700;
  display: grid;
  place-items: center;
}
.steps strong { display: block; color: var(--navy-800); margin-bottom: 2px; }
.steps span { color: var(--ink-muted); font-size: 0.95rem; }

.tags { display: flex; flex-wrap: wrap; gap: 9px; padding: 0; margin: 0; list-style: none; }
.tags li {
  border: 1px solid var(--rule);
  background: #fff;
  border-radius: 999px;
  padding: 6px 14px;
  font-size: 0.88rem;
  color: var(--ink-muted);
}

/* ---------- brands ---------- */

.brand-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr));
  gap: 22px;
}
.brand-card {
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  padding: 26px 24px;
  background: #fff;
}
.brand-card h3 { color: var(--navy-800); }
.brand-card p { color: var(--ink-muted); font-size: 0.96rem; }
.brand-card p:last-child { margin-bottom: 0; }
.brand-card ul {
  margin: 0;
  padding-left: 1.15em;
  color: var(--ink-muted);
  font-size: 0.92rem;
}
.brand-card li { margin-bottom: 0.3em; }

/* wide image introducing a section */
.section-media {
  display: block;
  width: 100%;
  aspect-ratio: 21 / 6;
  object-fit: cover;
  border-radius: var(--radius);
  border: 1px solid var(--rule);
  margin-bottom: 34px;
}

/* ---------- contact ---------- */

.contact {
  background: linear-gradient(180deg, var(--navy-800), var(--navy-900));
  color: #eaf3f8;
}
.contact h2 { color: #fff; }
.contact p { color: #b6cfdd; }
.contact .section-head p { color: #b6cfdd; }
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 240px), 1fr));
  gap: 32px;
  margin-top: 8px;
}
.contact-grid h3 { color: #fff; font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.13em; }
.contact-grid a { color: var(--cyan-500); }
.contact-grid address { font-style: normal; color: #b6cfdd; }

/* ---------- footer ---------- */

.site-footer {
  background: var(--navy-900);
  color: #7fa8bd;
  padding: 30px 0;
  font-size: 0.88rem;
  border-top: 1px solid rgba(255, 255, 255, 0.09);
}
.site-footer .wrap {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.site-footer a { color: #9fc4d6; }

/* ---------- 404 ---------- */

.notfound {
  min-height: 62vh;
  display: grid;
  place-items: center;
  text-align: center;
  padding: 80px 24px;
}

/* ---------- responsive ---------- */

@media (max-width: 720px) {
  .wrap { padding: 0 20px; }
  .site-header .wrap { min-height: 60px; flex-wrap: wrap; padding-block: 10px; }
  /* Drop the two longest items so the nav is one row on a phone. Both
     sections stay reachable by scrolling; only the shortcut goes. */
  .site-nav .nav-wide { display: none; }
  /* Must be `.site-nav a`, not `.site-nav`: the base rule is `.site-nav a`
     (0,1,1) and outranks a bare `.site-nav` (0,1,0) here, so setting the size
     on the container silently does nothing. */
  .site-nav { gap: 13px; }
  .site-nav a { font-size: 0.85rem; }
  .hero { padding: 62px 0 58px; }
  section { padding: 60px 0; }
  /* header is 107px here: one logo row + one nav row (measured at 320 and 390) */
  section[id] { scroll-margin-top: 115px; }
  .hero-facts { margin-top: 44px; }
  .section-media { aspect-ratio: 16 / 9; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .card, .btn { transition: none; }
}