/* Inverted Hex, LLC — shared styles
   Dark by default, light-mode aware. Monochrome identity,
   italic-serif headings echoing the logo, mono accents. */

:root {
  color-scheme: dark light;

  --bg:        #0a0b0d;
  --bg-elev:   #121418;
  --bg-card:   #16181d;
  --border:    #262a31;
  --border-hi: #3a404a;
  --fg:        #e9eaec;
  --fg-dim:    #a2a7b0;
  --fg-faint:  #6c727c;
  --accent:    #ffffff;
  --hex-line:  rgba(255,255,255,0.035);

  --serif: Georgia, "Times New Roman", "Iowan Old Style", serif;
  --mono:  ui-monospace, "SF Mono", "JetBrains Mono", "Fira Code", Menlo, Consolas, monospace;
  --sans:  system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  --maxw: 960px;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg:        #f7f7f5;
    --bg-elev:   #ffffff;
    --bg-card:   #ffffff;
    --border:    #e2e2df;
    --border-hi: #cfcfca;
    --fg:        #14161a;
    --fg-dim:    #4a4f57;
    --fg-faint:  #8a8f97;
    --accent:    #000000;
    --hex-line:  rgba(0,0,0,0.03);
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background-color: var(--bg);
  /* faint hex-grid motif */
  background-image:
    repeating-linear-gradient(60deg,  var(--hex-line) 0 1px, transparent 1px 46px),
    repeating-linear-gradient(-60deg, var(--hex-line) 0 1px, transparent 1px 46px);
  color: var(--fg);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

a { color: var(--fg); text-decoration-color: var(--border-hi); text-underline-offset: 3px; }
a:hover { text-decoration-color: var(--fg); }

/* ---------- Header ---------- */
.site-header {
  border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg) 86%, transparent);
  backdrop-filter: blur(8px);
  position: sticky; top: 0; z-index: 10;
}
.site-header .wrap {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; padding-top: 16px; padding-bottom: 16px;
}
.brand { display: inline-flex; align-items: center; }
.brand img { height: 40px; width: auto; display: block; }
.brand .logo-light { display: none; }
@media (prefers-color-scheme: light) {
  .brand .logo-dark  { display: none; }
  .brand .logo-light { display: block; }
}
.nav { display: flex; gap: 22px; font-family: var(--mono); font-size: 14px; }
.nav a { color: var(--fg-dim); text-decoration: none; }
.nav a:hover, .nav a[aria-current="page"] { color: var(--fg); }

/* ---------- Hero ---------- */
.hero { padding: 92px 0 64px; border-bottom: 1px solid var(--border); }
.eyebrow {
  font-family: var(--mono); font-size: 13px; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--fg-faint); margin: 0 0 18px;
}
.hero h1 {
  font-family: var(--serif); font-style: italic; font-weight: 700;
  font-size: clamp(2.4rem, 6vw, 4rem); line-height: 1.05;
  letter-spacing: -0.01em; margin: 0 0 20px;
}
.hero p.lede { font-size: clamp(1.05rem, 2.4vw, 1.3rem); color: var(--fg-dim); max-width: 40ch; margin: 0 0 32px; }

.btn-row { display: flex; flex-wrap: wrap; gap: 12px; }
.btn {
  font-family: var(--mono); font-size: 14px;
  display: inline-flex; align-items: center; gap: 8px;
  padding: 11px 18px; border-radius: 10px; text-decoration: none;
  border: 1px solid var(--border-hi); color: var(--fg);
}
.btn:hover { border-color: var(--fg); }
.btn.primary { background: var(--fg); color: var(--bg); border-color: var(--fg); }
.btn.primary:hover { opacity: 0.9; }

/* ---------- Sections ---------- */
section { padding: 64px 0; border-bottom: 1px solid var(--border); }
.section-label {
  font-family: var(--mono); font-size: 13px; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--fg-faint); margin: 0 0 8px;
}
h2 {
  font-family: var(--serif); font-style: italic; font-weight: 700;
  font-size: clamp(1.6rem, 3.5vw, 2.3rem); margin: 0 0 24px; letter-spacing: -0.01em;
}
h3 { font-size: 1.15rem; margin: 0 0 8px; }
p { margin: 0 0 16px; }

/* ---------- Pillar cards ---------- */
.pillars { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 18px; }
.card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 14px; padding: 26px 24px;
}
.card:hover { border-color: var(--border-hi); }
.card .idx { font-family: var(--mono); font-size: 13px; color: var(--fg-faint); margin-bottom: 14px; }
.card p { color: var(--fg-dim); margin: 0; font-size: 0.98rem; }

.prose { max-width: 68ch; }
.prose p { color: var(--fg-dim); }
.prose strong { color: var(--fg); font-weight: 650; }

/* ---------- Products ---------- */
.product-card { display: flex; flex-direction: column; text-decoration: none; color: var(--fg); }
.product-card:hover { border-color: var(--border-hi); }
.product-card .kicker {
  font-family: var(--mono); font-size: 12px; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--fg-faint); margin-bottom: 12px;
}
.product-card h3 { margin-bottom: 10px; }
.product-card p { color: var(--fg-dim); margin: 0 0 18px; font-size: 0.98rem; }
.product-card .more {
  font-family: var(--mono); font-size: 13px; color: var(--fg-dim);
  margin-top: auto; display: inline-flex; align-items: center; gap: 6px;
}
.product-card:hover .more { color: var(--fg); }
.product-card .more::after { content: "→"; transition: transform 0.15s ease; }
.product-card:hover .more::after { transform: translateX(3px); }

.badge {
  display: inline-block; font-family: var(--mono); font-size: 12px;
  letter-spacing: 0.06em; text-transform: uppercase; color: var(--fg-dim);
  border: 1px solid var(--border-hi); border-radius: 999px;
  padding: 3px 12px; margin-bottom: 18px;
}

/* Feature / spec lists on product pages */
.feature-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 18px; }
.feature {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 14px; padding: 24px 22px;
}
.feature h3 { font-size: 1.05rem; margin: 0 0 8px; }
.feature p { color: var(--fg-dim); margin: 0; font-size: 0.96rem; }

.specs { list-style: none; padding: 0; margin: 0; max-width: 68ch; }
.specs li {
  display: flex; gap: 16px; padding: 14px 0; border-bottom: 1px solid var(--border);
  color: var(--fg-dim);
}
.specs li:last-child { border-bottom: none; }
.specs .k {
  font-family: var(--mono); font-size: 13px; color: var(--fg-faint);
  flex: 0 0 160px; text-transform: uppercase; letter-spacing: 0.06em; padding-top: 2px;
}
.specs .v { flex: 1; }
.specs .v strong { color: var(--fg); font-weight: 600; }

.backlink { font-family: var(--mono); font-size: 13px; color: var(--fg-dim); text-decoration: none; }
.backlink:hover { color: var(--fg); }
.backlink::before { content: "← "; }

/* ---------- Privacy page ---------- */
.doc { padding: 56px 0 24px; }
.doc .meta { font-family: var(--mono); font-size: 13px; color: var(--fg-faint); margin-bottom: 8px; }
.doc h1 { font-family: var(--serif); font-style: italic; font-size: clamp(2rem, 5vw, 3rem); margin: 0 0 10px; }
.doc-body { max-width: 72ch; }
.doc-body h2 { font-size: 1.35rem; margin-top: 44px; }
.doc-body h2:first-of-type { margin-top: 24px; }
.doc-body p, .doc-body li { color: var(--fg-dim); }
.doc-body ul { padding-left: 22px; }
.doc-body li { margin-bottom: 8px; }

.placeholder {
  font-family: var(--mono); font-size: 0.9em;
  background: color-mix(in srgb, var(--fg) 12%, transparent);
  border: 1px dashed var(--border-hi); border-radius: 5px;
  padding: 1px 6px; color: var(--fg); white-space: nowrap;
}

.callout {
  background: var(--bg-card); border: 1px solid var(--border);
  border-left: 3px solid var(--fg); border-radius: 10px;
  padding: 20px 24px; margin: 28px 0;
}
.callout p:last-child { margin-bottom: 0; }

/* ---------- Footer ---------- */
.site-footer { padding: 40px 0 56px; }
.site-footer .wrap { display: flex; flex-wrap: wrap; gap: 16px 32px; align-items: baseline; justify-content: space-between; }
.site-footer .fine { font-family: var(--mono); font-size: 13px; color: var(--fg-faint); }
.site-footer nav { display: flex; gap: 22px; font-family: var(--mono); font-size: 13px; }
.site-footer nav a { color: var(--fg-dim); text-decoration: none; }
.site-footer nav a:hover { color: var(--fg); }

/* ---------- Motion / a11y ---------- */
@media (prefers-reduced-motion: reduce) { * { scroll-behavior: auto !important; } }
:focus-visible { outline: 2px solid var(--fg); outline-offset: 3px; border-radius: 4px; }