/* ============================================================
   Tremb Labs — steel blue & safety orange theme
   Theme variables: edit these to retheme the whole site.
   ============================================================ */
:root {
  color-scheme: light;
  --ink: #243846;          /* steel slate */
  --ink-soft: #5b7184;
  --accent: #2e4a62;       /* steel blue */
  --accent-dark: #223a4e;
  --safety: #e8762d;       /* safety orange */
  --safety-dark: #c75f1d;
  --bg: #f7f9fa;
  --bg-tint: #ebf0f3;
  --bg-hero: #dde7ec;
  --bg-footer: #16242f;
  --border: #d3dde3;
  --card: #ffffff;
  --radius: 6px;           /* tight corners — civil-engineering feel */
  --shadow: 0 2px 8px rgba(36, 56, 70, 0.09);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: "Barlow", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  font-size: 16.5px;
}

.container { max-width: 1100px; margin: 0 auto; padding: 0 24px; }

h1, h2, h3, h4 { line-height: 1.15; font-weight: 800; }
h2 { font-size: 2rem; margin-bottom: 12px; }

/* ============ Buttons ============ */
.btn {
  display: inline-block;
  padding: 13px 26px;
  border-radius: var(--radius);
  font-weight: 700;
  font-size: 0.95rem;
  text-decoration: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  transition: background 0.15s ease, transform 0.1s ease;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--safety); color: #fff; }
.btn-primary:hover { background: var(--safety-dark); }
.btn-ghost { background: transparent; color: var(--accent); border: 2px solid var(--accent); }
.btn-ghost:hover { background: var(--accent); color: #fff; }
.btn-light { background: #fff; color: var(--accent-dark); }   /* for dark CTA panel */
.btn-light:hover { background: var(--bg-tint); }
.btn-sm { padding: 9px 18px; font-size: 0.85rem; }

/* ============ Nav ============ */
.nav {
  background: rgba(247, 249, 250, 0.93);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 50;
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 66px; gap: 24px; }
.logo { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.2rem; color: var(--ink); text-decoration: none; }
.nav-links { display: flex; gap: 28px; }
.nav-links a { color: var(--ink-soft); text-decoration: none; font-weight: 600; font-size: 0.95rem; }
.nav-links a:hover { color: var(--ink); }

/* ============ Hero ============ */
.hero {
  background:
    /* hazard-stripe underlay, very faint, along the bottom edge feel */
    repeating-linear-gradient(135deg, transparent 0, transparent 28px, rgba(46, 74, 98, 0.05) 28px, rgba(46, 74, 98, 0.05) 34px),
    var(--bg-hero);
  padding: 72px 0 96px;
  border-bottom: 4px solid var(--safety);
}
.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 56px;
  align-items: center;
}
.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.09em;
  font-size: 0.78rem;
  font-weight: 800;
  color: var(--safety-dark);
  margin-bottom: 14px;
}
.hero h1 { font-size: 2.7rem; margin-bottom: 18px; }
.lead { font-size: 1.1rem; color: var(--ink-soft); margin-bottom: 28px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-note { margin-top: 18px; font-size: 0.85rem; color: var(--ink-soft); font-weight: 600; }

/* ---- Hero visual: asset map + alert feed ---- */
.ops {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 12px;
}
.ops-map {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.ops-map-head {
  padding: 10px 14px;
  font-size: 0.76rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--ink-soft);
  border-bottom: 1px solid var(--border);
  background: var(--bg-tint);
}
.map-grid {
  position: relative;
  height: 230px;
  background:
    linear-gradient(rgba(46, 74, 98, 0.07) 1px, transparent 1px) 0 0 / 24px 24px,
    linear-gradient(90deg, rgba(46, 74, 98, 0.07) 1px, transparent 1px) 0 0 / 24px 24px,
    #f2f6f8;
}
.map-roads { position: absolute; inset: 0; width: 100%; height: 100%; }
.map-roads path { stroke: rgba(46, 74, 98, 0.22); stroke-width: 2.5; }
.pin {
  position: absolute;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  border: 2.5px solid #fff;
  box-shadow: 0 1px 4px rgba(36, 56, 70, 0.35);
  z-index: 2;
}
.pin.ok { background: #3f8f5a; }
.pin.warn { background: #e2a728; }
.pin.crit {
  background: #cb4434;
  animation: ping 1.8s ease-in-out infinite;
}
@keyframes ping {
  0%, 100% { box-shadow: 0 1px 4px rgba(36,56,70,0.35), 0 0 0 0 rgba(203, 68, 52, 0.4); }
  50% { box-shadow: 0 1px 4px rgba(36,56,70,0.35), 0 0 0 8px rgba(203, 68, 52, 0); }
}
.map-legend {
  display: flex;
  gap: 16px;
  padding: 9px 14px;
  border-top: 1px solid var(--border);
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--ink-soft);
}
.map-legend span { display: flex; align-items: center; gap: 6px; }
.dot { width: 9px; height: 9px; border-radius: 50%; display: inline-block; }
.dot.ok { background: #3f8f5a; }
.dot.warn { background: #e2a728; }
.dot.crit { background: #cb4434; }

.ops-feed {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.feed-head {
  font-size: 0.76rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--ink-soft);
}
.feed-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 12px;
  box-shadow: var(--shadow);
}
.feed-item p { font-size: 0.76rem; color: var(--ink-soft); line-height: 1.5; }
.feed-tag {
  display: inline-block;
  font-size: 0.62rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  padding: 2px 8px;
  border-radius: 3px;
  margin-bottom: 5px;
}
.feed-item.crit { border-left: 4px solid #cb4434; }
.feed-item.crit .feed-tag { background: #f9e2df; color: #a33327; }
.feed-item.warn { border-left: 4px solid #e2a728; }
.feed-item.warn .feed-tag { background: #faf0d4; color: #966c12; }
.feed-item.done { border-left: 4px solid #3f8f5a; }
.feed-item.done .feed-tag { background: #e0efe5; color: #2e6b43; }

/* ============ Sections ============ */
.section { padding: 80px 0; }
.section-tint { background: var(--bg-tint); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section-lead { color: var(--ink-soft); font-size: 1.06rem; max-width: 660px; margin-bottom: 44px; }

/* ============ Cards ============ */
.cards { display: grid; gap: 22px; }
.cards-3 { grid-template-columns: repeat(3, 1fr); }
.cards-4 { grid-template-columns: repeat(2, 1fr); }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
  box-shadow: var(--shadow);
}
.card h3 { font-size: 1.1rem; margin-bottom: 8px; }
.card p { color: var(--ink-soft); font-size: 0.94rem; }

.card-icon {
  width: 46px;
  height: 46px;
  border-radius: var(--radius);
  background: #fbe9dc;
  color: var(--safety-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}
.card-icon svg { width: 24px; height: 24px; }

/* ============ Steps ============ */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-top: 44px; }
.step {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
  box-shadow: var(--shadow);
}
.step-num {
  width: 38px;
  height: 38px;
  border-radius: var(--radius);
  background: var(--accent);
  color: #fff;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}
.step h3 { font-size: 1.08rem; margin-bottom: 8px; }
.step p { color: var(--ink-soft); font-size: 0.94rem; }

/* ============ Stats ============ */
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin: 44px 0; }
.stat {
  background: var(--card);
  border: 1px solid var(--border);
  border-top: 4px solid var(--safety);
  border-radius: var(--radius);
  padding: 26px;
  text-align: center;
  box-shadow: var(--shadow);
}
.stat-num { font-size: 2.3rem; font-weight: 800; color: var(--accent); margin-bottom: 4px; }
.stat p { color: var(--ink-soft); font-size: 0.92rem; }

/* ============ Testimonial ============ */
.quote-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 40px;
  box-shadow: var(--shadow);
  max-width: 800px;
  margin: 0 auto;
}
.quote-card blockquote p { font-size: 1.1rem; margin-bottom: 22px; }
.quote-card footer { display: flex; align-items: center; gap: 14px; }
.avatar {
  width: 46px;
  height: 46px;
  border-radius: var(--radius);
  background: var(--safety);
  color: #fff;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
}
.quote-card footer strong { display: block; font-size: 0.95rem; }
.quote-card footer span { color: var(--ink-soft); font-size: 0.85rem; }

/* ============ Trust badges ============ */
.trust-row { display: flex; justify-content: center; flex-wrap: wrap; gap: 12px; margin-top: 36px; }
.trust-badge {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--ink-soft);
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 8px 18px;
}

/* ============ CTA (dark panel, light button) ============ */
.section-cta { background: var(--accent-dark); color: #fff; padding: 80px 0; }
.cta-inner { text-align: center; max-width: 620px; }
.section-cta h2 { color: #fff; }
.section-cta p { color: rgba(255, 255, 255, 0.75); margin: 12px 0 28px; }
.cta-form { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.cta-form input {
  flex: 1;
  min-width: 240px;
  padding: 13px 18px;
  border-radius: var(--radius);
  border: none;
  font-family: inherit;
  font-size: 0.95rem;
  background: #fff;
  color: var(--ink);
}
.cta-form input:focus { outline: 3px solid rgba(232, 118, 45, 0.55); }
.cta-confirm { font-weight: 700; color: #f4b384 !important; }

/* ============ Footer ============ */
.footer { background: var(--bg-footer); color: rgba(255, 255, 255, 0.7); padding: 56px 0 28px; }
.footer .logo { color: #fff; }
.footer-inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 36px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}
.footer-brand p { font-size: 0.9rem; margin-top: 12px; max-width: 280px; }
.footer-col h4 {
  color: #fff;
  font-size: 0.83rem;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  margin-bottom: 14px;
}
.footer-col a, .footer-col span {
  display: block;
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  font-size: 0.92rem;
  margin-bottom: 9px;
}
.footer-col a:hover { color: #fff; }
.footer-bottom { padding-top: 24px; font-size: 0.82rem; }

/* ============ Responsive ============ */
@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; gap: 44px; }
  .hero h1 { font-size: 2.2rem; }
  .cards-3, .cards-4, .steps, .stats { grid-template-columns: 1fr 1fr; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .nav-links { display: none; }
}
@media (max-width: 600px) {
  .cards-3, .cards-4, .steps, .stats { grid-template-columns: 1fr; }
  .ops { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
  .hero { padding: 52px 0 64px; }
  h2 { font-size: 1.6rem; }
}