/* ============================================================
   FleetSense — Module Detail Pages (builds on styles.css)
   ============================================================ */

/* back link */
.back-link {
  display: flex; align-items: center; gap: 7px; width: fit-content;
  font-family: var(--mono); font-size: 12px; letter-spacing: .06em;
  color: var(--text-3); margin-bottom: 36px; transition: color .15s;
}
.back-link:hover { color: var(--text); }
.back-link svg { width: 14px; height: 14px; }

/* detail hero */
.dhero { position: relative; overflow: hidden; padding: 80px 0 88px; border-bottom: 1px solid var(--border); }
.dhero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(760px 480px at 80% -6%, var(--accent-soft), transparent 62%);
}
.dhero .wrap { position: relative; z-index: 1; }
.dhero-inner { display: grid; grid-template-columns: 1fr 1.06fr; gap: 64px; align-items: center; }
.dhero h1 {
  font-size: clamp(32px, 4.2vw, 52px); font-weight: 600;
  letter-spacing: -.035em; line-height: 1.02; margin: 14px 0 18px;
}
.dhero .lede { font-size: 19px; color: var(--text-2); max-width: 520px; margin: 0 0 30px; }
.dhero-visual {
  position: relative;
  padding: clamp(16px, 2.2vw, 28px); border-radius: 24px;
  background: linear-gradient(176deg, color-mix(in oklab, #ffffff 7%, var(--surface-2)) 0%, var(--bg-2) 72%);
  border: 1px solid var(--border);
  box-shadow: 0 1px 0 rgba(255,255,255,.04) inset, var(--shadow-soft);
}
.dhero-visual .mock { box-shadow: var(--shadow); }
@media (max-width: 900px) {
  .dhero-inner { grid-template-columns: 1fr; gap: 44px; }
  .dhero { padding: 64px 0 72px; }
  .dhero-visual { max-width: 100%; overflow: hidden; }
  .dhero-visual .mock { max-width: 100%; }
}
@media (max-width: 480px) {
  .dhero-visual .mock-body .kpi-row { grid-template-columns: 1fr !important; }
}

/* score tiers */
.tierset { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.tier {
  background: var(--surface); border: 1px solid var(--border); border-radius: 18px; padding: 28px 26px;
  transition: transform .25s cubic-bezier(.2,.7,.3,1), border-color .25s;
}
.tier:hover { transform: translateY(-3px); border-color: var(--accent-line); }
.tier .trange { font-family: var(--mono); font-size: 12.5px; color: var(--text-3); letter-spacing: .04em; }
.tier .tname2 { display: flex; align-items: center; gap: 10px; font-size: 19px; font-weight: 600; margin: 12px 0 8px; letter-spacing: -.01em; }
.tier .dotc { width: 9px; height: 9px; border-radius: 50%; flex-shrink: 0; }
.tier p { font-size: 14px; color: var(--text-2); margin: 0; }
@media (max-width: 760px) { .tierset { grid-template-columns: 1fr; } }

/* capability grid */
.capgrid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.capcard {
  background: var(--surface); border: 1px solid var(--border); border-radius: 18px; padding: 30px 28px;
  transition: transform .25s cubic-bezier(.2,.7,.3,1), border-color .25s;
}
.capcard:hover { transform: translateY(-3px); border-color: var(--accent-line); }
.capcard .ck { font-family: var(--mono); font-size: 12px; color: var(--on-surface-accent); letter-spacing: .06em; }
.capcard h4 { font-size: 17px; font-weight: 600; margin: 14px 0 8px; letter-spacing: -.01em; }
.capcard p { font-size: 14.5px; color: var(--text-2); margin: 0; line-height: 1.55; }
@media (max-width: 680px) { .capgrid { grid-template-columns: 1fr; } }

/* data sources */
.srcrow { display: flex; flex-wrap: wrap; gap: 12px; }
.src {
  display: flex; align-items: center; gap: 12px;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 14px; padding: 14px 20px 14px 14px;
}
.src .si2 {
  width: 34px; height: 34px; border-radius: 9px; background: var(--surface-3);
  display: grid; place-items: center;
  font-family: var(--mono); font-weight: 600; font-size: 13px; color: var(--text-2);
}
.src .sn { font-size: 14px; font-weight: 600; }
.src .ss { font-size: 11.5px; color: var(--text-3); font-family: var(--mono); display: block; margin-top: 1px; }

/* image band */
.imageband { position: relative; width: 100%; height: 520px; overflow: hidden; }
.imageband img {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover;
  filter: grayscale(.6) saturate(.7) brightness(.4);
}
.imageband .ib-overlay {
  position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(180deg, rgba(8,9,10,.55), transparent 30%, transparent 55%, rgba(8,9,10,.9));
}
.imageband .ib-cap { position: absolute; left: 0; right: 0; bottom: 0; pointer-events: none; }
.imageband .ib-cap .wrap { padding-bottom: 48px; }
.imageband .ib-eyebrow {
  font-family: var(--mono); font-size: 12px; letter-spacing: .16em;
  text-transform: uppercase; color: #cfd3da;
}
.imageband .ib-cap h3 {
  font-size: clamp(26px, 3.2vw, 40px); font-weight: 600; letter-spacing: -.03em;
  line-height: 1.08; margin: 12px 0 0; max-width: 640px; color: #fff; text-wrap: pretty;
}
@media (max-width: 760px) { .imageband { height: 380px; } }

/* section index label */
.sec-index { font-family: var(--mono); font-size: 12px; letter-spacing: .14em; text-transform: uppercase; color: var(--text-3); }

/* split 2-col layout */
.split2 { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; }
@media (max-width: 820px) { .split2 { grid-template-columns: 1fr; gap: 48px; } }

/* CTA card (flat lavender) */
.cta-card {
  position: relative; overflow: hidden;
  border-radius: 26px; padding: 64px 56px;
  background: linear-gradient(135deg, var(--accent-dim), var(--surface));
  border: 1px solid var(--accent-line);
  text-align: center;
}
.cta-card h2 { font-size: clamp(30px, 3.6vw, 46px); font-weight: 700; letter-spacing: -.022em; margin: 0 0 16px; }
.cta-card p { font-size: 18px; color: var(--text-2); max-width: 520px; margin: 0 auto 30px; }
.cta-card .hero-cta { justify-content: center; }
.cta-flat { background: #c9c2f5; border: none; }
.cta-flat h2, .cta-flat .eyebrow { color: #1a1830; }
.cta-flat p { color: #4a4570; }
.cta-flat .eyebrow::before { background: #6f67a6; }
.btn-cta-dark { background: #15132b; color: #fff; display: inline-flex; align-items: center; gap: 8px; font-family: var(--font); font-weight: 600; font-size: 15px; padding: 12px 20px; border-radius: 999px; border: 1px solid transparent; cursor: pointer; transition: transform .18s, background .18s; }
.btn-cta-dark:hover { background: #000; transform: translateY(-1px); }
.btn-cta-ghost { background: transparent; color: #1a1830; border: 1px solid rgba(26,24,48,.3); display: inline-flex; align-items: center; gap: 8px; font-family: var(--font); font-weight: 600; font-size: 15px; padding: 12px 20px; border-radius: 999px; cursor: pointer; transition: transform .18s, background .18s; }
.btn-cta-ghost:hover { background: rgba(26,24,48,.07); }
@media (max-width: 600px) { .cta-card { padding: 44px 24px; } }

/* hero CTA buttons */
.hero-cta { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
@media (max-width: 480px) { .hero-cta { flex-direction: column; align-items: flex-start; } }

/* active nav link */
.nav-links a.cur { color: var(--text); }
.nav-signin { font-size: 14px; color: var(--text-2); font-weight: 500; transition: color .15s; }
.nav-signin:hover { color: var(--text); }

/* ============================================================
   Lower-page depth — backgrounds for capability & config areas
   ============================================================ */

/* subtle accent glow behind the capability grid area */
.capgrid { position: relative; overflow: hidden; }
.capgrid::before {
  content: ""; position: absolute; top: -120px; left: 50%; transform: translateX(-50%);
  width: 900px; max-width: 200%; height: 500px; z-index: -1; pointer-events: none;
  background: radial-gradient(50% 50% at 50% 50%, var(--accent-soft), transparent 70%);
  opacity: .3; filter: blur(40px);
}

/* dot grid pattern behind config/split sections */
.split2 { position: relative; overflow: hidden; }
.split2::before {
  content: ""; position: absolute; inset: -60px -40px; z-index: -1; pointer-events: none;
  background-image: radial-gradient(circle, rgba(255,255,255,.06) 1px, transparent 1px);
  background-size: 28px 28px;
  -webkit-mask-image: radial-gradient(ellipse 70% 80% at 50% 50%, rgba(0,0,0,.5) 0%, transparent 70%);
  mask-image: radial-gradient(ellipse 70% 80% at 50% 50%, rgba(0,0,0,.5) 0%, transparent 70%);
}

/* alternating section tones on detail pages */
main > .section:nth-child(even) { background: var(--bg-2); }

/* CTA section gets a top glow */
.cta-card { position: relative; }
.section:has(.cta-card)::before {
  content: ""; position: absolute; top: -80px; left: 50%; transform: translateX(-50%);
  width: 700px; height: 350px; z-index: -1; pointer-events: none;
  background: radial-gradient(50% 50% at 50% 50%, var(--accent-soft), transparent 70%);
  opacity: .25;
}
.section:has(.cta-card) { position: relative; }