/* ============================================================
   DCS Analytics — Product pages
   "Signal": pure white, true-black type, electric blue accent,
   coral for emphasis. High contrast by design.
   ============================================================ */

:root {
  --white:   #FFFFFF;
  --ink:     #0A0A0A;
  --ink-2:   #24262B;
  --muted:   #55596A;
  --line:    #E3E7EF;
  --line-2:  #CDD4E2;
  --wash:    #F4F6FB;
  --wash-2:  #EDF1F9;

  --blue:    #2563EB;
  --blue-dk: #1D4ED8;
  --blue-hi: #3B82F6;
  --blue-gh: #EFF4FF;

  --coral:   #FF4D4D;
  --coral-dk:#DC2626;
  --coral-gh:#FFF0F0;

  --green:   #059669;

  --radius:    12px;
  --radius-lg: 20px;
  --maxw:      1180px;

  --sh-sm: 0 1px 2px rgba(10,10,10,.05), 0 1px 3px rgba(10,10,10,.08);
  --sh-md: 0 10px 28px -8px rgba(10,10,10,.16), 0 3px 8px rgba(10,10,10,.06);
  --sh-lg: 0 40px 80px -24px rgba(10,20,60,.34), 0 10px 24px -8px rgba(10,20,60,.16);
  --sh-blue: 0 12px 28px -10px rgba(37,99,235,.55);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: 'IBM Plex Sans', system-ui, -apple-system, Segoe UI, sans-serif;
  color: var(--ink);
  background: var(--white);
  font-size: 17px;
  line-height: 1.62;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: var(--blue); }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.narrow { max-width: 780px; }

/* ---------- top bar ---------- */
.topbar {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.topbar .wrap { display: flex; align-items: center; gap: 28px; height: 68px; }
.brand {
  font-weight: 700; letter-spacing: -.025em; font-size: 1.08rem;
  color: var(--ink); text-decoration: none; white-space: nowrap;
}
.brand span { color: var(--blue); }
.topnav { margin-left: auto; display: flex; gap: 26px; align-items: center; }
.topnav a { color: var(--muted); text-decoration: none; font-size: .93rem; font-weight: 500; }
.topnav a:hover { color: var(--ink); }
.topnav a.active { color: var(--ink); font-weight: 600; }
.topnav a.cta {
  background: var(--blue); color: #fff; padding: 9px 17px; border-radius: 8px;
  font-weight: 600; transition: background .15s ease;
}
.topnav a.cta:hover { background: var(--blue-dk); color: #fff; }

/* ---------- hero ---------- */
.hero { position: relative; overflow: hidden; background: var(--white); padding: 84px 0 0; }
.hero::before {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 620px; pointer-events: none;
  background:
    radial-gradient(720px 340px at 88% -6%, rgba(37,99,235,.13), transparent 70%),
    radial-gradient(520px 280px at 4% 2%, rgba(255,77,77,.07), transparent 70%);
}
.hero .wrap { position: relative; z-index: 1; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 9px;
  font-family: 'IBM Plex Mono', ui-monospace, monospace;
  font-size: .73rem; letter-spacing: .15em; text-transform: uppercase;
  color: var(--blue-dk); background: var(--blue-gh); border: 1px solid #D6E4FF;
  padding: 6px 13px; border-radius: 999px; margin-bottom: 24px; font-weight: 500;
}
.eyebrow.coral { color: var(--coral-dk); background: var(--coral-gh); border-color: #FFD9D9; }

h1 {
  font-size: clamp(2.4rem, 5.6vw, 4.05rem);
  line-height: 1.02; letter-spacing: -.04em; font-weight: 700;
  margin: 0 0 22px; color: var(--ink);
}
h1 em { font-style: normal; color: var(--blue); }
.hero .lede {
  font-size: clamp(1.08rem, 1.9vw, 1.32rem);
  color: var(--muted); max-width: 660px; margin: 0 0 34px; line-height: 1.55;
}

/* price */
.pricetag { display: flex; align-items: baseline; gap: 14px; flex-wrap: wrap; margin-bottom: 30px; }
.pricetag .amount { font-size: 2.7rem; font-weight: 700; letter-spacing: -.04em; }
.pricetag .terms { color: var(--muted); font-size: .94rem; }

.btnrow { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }
.btn {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 14px 26px; border-radius: 9px; font-weight: 600; font-size: .97rem;
  text-decoration: none; border: 1.5px solid transparent; cursor: pointer;
  transition: transform .14s ease, box-shadow .14s ease, background .14s ease, border-color .14s ease;
}
.btn-primary { background: var(--blue); color: #fff; box-shadow: var(--sh-blue); }
.btn-primary:hover { background: var(--blue-dk); transform: translateY(-2px); }
.btn-ghost { border-color: var(--line-2); color: var(--ink); background: #fff; }
.btn-ghost:hover { border-color: var(--ink); transform: translateY(-2px); }

.notice {
  margin-top: 24px; font-size: .88rem; color: var(--muted);
  display: flex; align-items: flex-start; gap: 10px; max-width: 580px;
  background: var(--wash); border: 1px solid var(--line); border-left: 3px solid var(--blue);
  padding: 13px 16px; border-radius: 8px;
}

/* hero screenshot */
.heroshot { margin-top: 58px; padding-bottom: 8px; }
.heroshot img {
  border-radius: var(--radius-lg);
  box-shadow: var(--sh-lg);
  border: 1px solid var(--line-2);
}

/* ---------- sections ---------- */
section { padding: 92px 0; }
section.tight { padding: 62px 0; }
.band { background: var(--wash); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.band-ink { background: var(--ink); color: #fff; }
.band-ink .sechead h2 { color: #fff; }
.band-ink .sechead p { color: rgba(255,255,255,.72); }
.band-ink .kicker { color: var(--blue-hi); }

.sechead { max-width: 730px; margin-bottom: 48px; }
.sechead h2 {
  font-size: clamp(1.8rem, 3.4vw, 2.5rem); letter-spacing: -.035em;
  line-height: 1.12; margin: 0 0 14px; font-weight: 700;
}
.sechead p { color: var(--muted); margin: 0; font-size: 1.07rem; }
.kicker {
  font-family: 'IBM Plex Mono', monospace; font-size: .72rem;
  letter-spacing: .16em; text-transform: uppercase; color: var(--blue);
  margin-bottom: 13px; font-weight: 500;
}

/* ---------- grids ---------- */
.grid { display: grid; gap: 20px; }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(272px, 1fr)); }

.card {
  background: var(--white); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 26px;
  transition: transform .16s ease, box-shadow .16s ease, border-color .16s ease;
}
.card:hover { transform: translateY(-3px); box-shadow: var(--sh-md); border-color: var(--line-2); }
.card h3 { margin: 0 0 9px; font-size: 1.08rem; letter-spacing: -.02em; }
.card p { margin: 0; color: var(--muted); font-size: .95rem; line-height: 1.58; }
.card .ico {
  width: 38px; height: 38px; border-radius: 9px; margin-bottom: 16px;
  display: grid; place-items: center; background: var(--blue-gh); color: var(--blue-dk);
  font-family: 'IBM Plex Mono', monospace; font-weight: 600; font-size: .9rem;
}
.band-ink .card { background: #131417; border-color: #26282E; }
.band-ink .card h3 { color: #fff; }
.band-ink .card p { color: rgba(255,255,255,.66); }
.band-ink .card .ico { background: rgba(59,130,246,.16); color: var(--blue-hi); }

/* ---------- showcase ---------- */
.showcase { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; margin-bottom: 78px; }
.showcase:last-child { margin-bottom: 0; }
.showcase.flip .sc-text { order: 2; }
.showcase img { border-radius: var(--radius); border: 1px solid var(--line-2); box-shadow: var(--sh-md); }
.showcase h3 { font-size: 1.5rem; letter-spacing: -.03em; margin: 0 0 14px; line-height: 1.2; }
.showcase p { color: var(--muted); margin: 0 0 15px; }
@media (max-width: 900px) {
  .showcase { grid-template-columns: 1fr; gap: 26px; }
  .showcase.flip .sc-text { order: 0; }
}

/* ---------- spec table ---------- */
.specs { width: 100%; border-collapse: collapse; background: var(--white);
  border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.specs td { padding: 15px 20px; border-bottom: 1px solid var(--line); font-size: .95rem; vertical-align: top; }
.specs tr:last-child td { border-bottom: 0; }
.specs td:first-child { font-weight: 600; width: 34%; }
.specs td:last-child { color: var(--muted); }

/* ---------- checklist ---------- */
.checks { list-style: none; padding: 0; margin: 0; display: grid; gap: 11px; }
.checks li { display: flex; gap: 12px; align-items: flex-start; color: var(--muted); font-size: .97rem; }
.checks li::before {
  content: "✓"; color: #fff; font-weight: 700; flex: none;
  width: 20px; height: 20px; border-radius: 50%; background: var(--blue);
  display: grid; place-items: center; font-size: .68rem; margin-top: 3px;
}
.band-ink .checks li { color: rgba(255,255,255,.74); }

/* ---------- catalogue cards ---------- */
.prodcard {
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius-lg);
  overflow: hidden; display: flex; flex-direction: column;
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
  text-decoration: none; color: inherit;
}
.prodcard:hover { transform: translateY(-6px); box-shadow: var(--sh-lg); border-color: var(--line-2); }
.prodcard .thumb { aspect-ratio: 16/10; overflow: hidden; background: var(--wash); border-bottom: 1px solid var(--line); }
.prodcard .thumb img { width: 100%; height: 100%; object-fit: cover; object-position: top left; }
.prodcard .body { padding: 24px; display: flex; flex-direction: column; flex: 1; }
.prodcard .tag {
  font-family: 'IBM Plex Mono', monospace; font-size: .67rem; letter-spacing: .14em;
  text-transform: uppercase; font-weight: 600; margin-bottom: 11px; display: inline-block;
}
.tag.lab { color: var(--blue-dk); }
.tag.chess { color: var(--coral-dk); }
.tag.photo { color: #6D28D9; }
.prodcard h3 { margin: 0 0 8px; font-size: 1.24rem; letter-spacing: -.028em; }
.prodcard p { margin: 0 0 20px; color: var(--muted); font-size: .94rem; flex: 1; line-height: 1.55; }
.prodcard .foot { display: flex; align-items: baseline; justify-content: space-between; gap: 12px;
  border-top: 1px solid var(--line); padding-top: 16px; }
.prodcard .price { font-size: 1.3rem; font-weight: 700; letter-spacing: -.03em; }
.prodcard .once { font-size: .78rem; color: var(--muted); font-weight: 400; }
.prodcard .more { font-size: .9rem; font-weight: 600; color: var(--blue); }

/* ---------- callout ---------- */
.callout {
  background: var(--ink); color: #fff; border-radius: var(--radius-lg); padding: 46px 46px;
}
.callout h3 { margin: 0 0 12px; font-size: 1.5rem; letter-spacing: -.03em; color: #fff; }
.callout p { margin: 0 0 22px; color: rgba(255,255,255,.74); max-width: 660px; }
.callout .btn-primary { box-shadow: none; }

/* stat strip */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px,1fr)); gap: 1px;
  background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.stat { background: #fff; padding: 26px 24px; }
.stat .n { font-size: 2rem; font-weight: 700; letter-spacing: -.04em; color: var(--blue); line-height: 1.1; }
.stat .l { font-size: .88rem; color: var(--muted); margin-top: 5px; }

/* ---------- footer ---------- */
footer.site { background: var(--ink); color: rgba(255,255,255,.6); padding: 60px 0 40px; font-size: .92rem; }
footer.site a { color: rgba(255,255,255,.84); text-decoration: none; }
footer.site a:hover { color: var(--blue-hi); }
footer.site .cols { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; margin-bottom: 36px; }
footer.site h4 { color: #fff; font-size: .8rem; letter-spacing: .13em; text-transform: uppercase;
  font-family: 'IBM Plex Mono', monospace; font-weight: 500; margin: 0 0 15px; }
footer.site ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 9px; }
footer.site .legal { border-top: 1px solid rgba(255,255,255,.13); padding-top: 22px;
  display: flex; justify-content: space-between; gap: 18px; flex-wrap: wrap; font-size: .85rem; }
@media (max-width: 760px) { footer.site .cols { grid-template-columns: 1fr; gap: 28px; } }

@media (max-width: 640px) {
  body { font-size: 16px; }
  section { padding: 62px 0; }
  .hero { padding: 56px 0 0; }
  .callout { padding: 32px 26px; }
  .topnav { gap: 15px; }
  .topnav a.hide-sm { display: none; }
}