/* ============================================================
   Isar-Gulf^ai Industrial — Company Site
   Bone on ink, IBM Plex Sans + Mono, rust accent.
   ============================================================ */

:root {
  /* brand palette — taken from marketing.jsx */
  --ink:       #0E1116;
  --bone:      #F2EEE6;
  --steel:     #1E2B3F;
  --accent:    #C96442;   /* rust */
  --blueprint: #1E3A5F;
  --bp-ink:    #CFE4FF;

  /* derived */
  --ink-soft:  #2A2F36;
  --bone-soft: #E7E2D7;
  --line:      rgba(14, 17, 22, 0.12);
  --line-2:    rgba(14, 17, 22, 0.06);
  --mute:      rgba(14, 17, 22, 0.55);
  --mute-2:    rgba(14, 17, 22, 0.35);

  --sans:  "IBM Plex Sans", system-ui, sans-serif;
  --mono:  "IBM Plex Mono", ui-monospace, monospace;

  --pad-x: clamp(24px, 5vw, 80px);
  --max:   1480px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0; padding: 0;
  background: var(--bone);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
::selection { background: var(--accent); color: var(--bone); }
a { color: inherit; text-decoration: none; }

/* mono micro-label */
.mono {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--mute);
  font-weight: 400;
}
.accent { color: var(--accent); }

/* ─────────── top nav ─────────── */
.topbar {
  position: sticky; top: 0; z-index: 50;
  background: rgba(242, 238, 230, 0.86);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.topbar-inner {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  height: 64px;
  padding-inline: var(--pad-x);
  max-width: var(--max);
  margin: 0 auto;
  gap: 32px;
}
.brand-lockup {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}
.brand-lockup .mark {
  width: 26px; height: 26px;
  color: var(--ink);
}
.brand-lockup .word {
  font-family: var(--sans);
  font-weight: 600;
  font-size: 17px;
  letter-spacing: -0.01em;
  display: inline-flex;
  align-items: flex-start;
  line-height: 1;
}
.brand-lockup .word sup {
  font-size: 0.5em;
  font-weight: 500;
  margin-left: 2px;
  margin-top: 2px;
  letter-spacing: -0.02em;
  color: var(--accent);
  vertical-align: top;
}
.brand-lockup .sub {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--mute);
  margin-left: 14px;
  padding-left: 14px;
  border-left: 1px solid var(--line);
  align-self: stretch;
  display: inline-flex;
  align-items: center;
}
.topbar nav { display: flex; gap: 28px; justify-self: center; }
.topbar nav a {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.topbar nav a:hover { color: var(--accent); }
.topbar .right { display: inline-flex; align-items: center; gap: 14px; }
.topbar .right .pill {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--mute);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.topbar .right .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 10px var(--accent);
}
.topbar .right .cta {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 9px 16px;
  border: 1px solid var(--ink);
  color: var(--ink);
  transition: background 0.2s ease, color 0.2s ease;
}
.topbar .right .cta:hover { background: var(--ink); color: var(--bone); }

/* ─────────── hero ─────────── */
.hero {
  padding-inline: var(--pad-x);
  max-width: var(--max);
  margin: 0 auto;
  padding-top: clamp(48px, 7vw, 96px);
  padding-bottom: clamp(48px, 6vw, 80px);
  position: relative;
}
.hero-meta {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 24px;
  align-items: center;
  margin-bottom: clamp(48px, 6vw, 80px);
}
.hero-meta .dotline { border-top: 1px solid var(--line); height: 1px; }

.hero h1 {
  font-family: var(--sans);
  font-weight: 600;
  font-size: clamp(40px, 6.2vw, 104px);
  line-height: 0.98;
  letter-spacing: -0.03em;
  margin: 0;
  max-width: 18ch;
}
.hero h1 .accent { color: var(--accent); }
.hero h1 .mono-sup {
  font-family: var(--mono);
  font-weight: 500;
  font-size: 0.42em;
  letter-spacing: -0.01em;
  vertical-align: super;
  color: var(--accent);
}

.hero-lede {
  font-family: var(--sans);
  font-size: clamp(17px, 1.3vw, 21px);
  line-height: 1.5;
  color: var(--ink-soft);
  max-width: 56ch;
  margin: 36px 0 0 0;
}
.hero-cta-row {
  display: inline-flex;
  gap: 14px;
  margin-top: 40px;
  flex-wrap: wrap;
}
.btn {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  padding: 14px 22px;
  border: 1px solid var(--ink);
  transition: background 0.2s, color 0.2s, transform 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.btn.primary { background: var(--ink); color: var(--bone); }
.btn.primary:hover { background: var(--accent); border-color: var(--accent); }
.btn.ghost:hover  { background: var(--ink); color: var(--bone); }
.btn .arrow { font-family: var(--sans); font-size: 14px; }

/* hero schematic — placed at top-right, drawn in SVG */
.hero-schematic {
  position: absolute;
  top: clamp(72px, 8vw, 130px);
  right: var(--pad-x);
  width: clamp(280px, 28vw, 460px);
  height: auto;
  color: var(--ink);
  opacity: 0.85;
  pointer-events: none;
}
@media (max-width: 1080px) {
  .hero-schematic { position: static; opacity: 1; margin: 36px 0 0 0; width: 100%; max-width: 460px; }
}

/* credential / KPI strip */
.kpis {
  margin-top: clamp(48px, 6vw, 88px);
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--line);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}
.kpis .cell {
  padding: 26px 22px 24px 22px;
  border-right: 1px solid var(--line);
  display: flex; flex-direction: column; gap: 8px;
  min-height: 110px;
}
.kpis .cell:last-child { border-right: 0; }
.kpis .num {
  font-family: var(--sans);
  font-weight: 600;
  font-size: clamp(26px, 2.6vw, 36px);
  line-height: 1;
  letter-spacing: -0.02em;
}
.kpis .num .accent { color: var(--accent); }
.kpis .lbl {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--mute);
}

/* ─────────── section base ─────────── */
.section {
  padding-block: clamp(80px, 9vw, 140px);
  padding-inline: var(--pad-x);
  max-width: var(--max);
  margin: 0 auto;
}
.section.dark {
  max-width: 100%;
  margin: 0;
  background: var(--ink);
  color: var(--bone);
}
.section.dark .section-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding-inline: var(--pad-x);
}
.section-head {
  display: grid;
  grid-template-columns: 200px 1fr auto;
  gap: 32px;
  align-items: baseline;
  margin-bottom: clamp(40px, 5vw, 72px);
  padding-bottom: 28px;
  border-bottom: 1px solid var(--line);
}
.section.dark .section-head { border-bottom-color: rgba(242, 238, 230, 0.18); }
.section-head .num {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
}
.section-head h2 {
  font-family: var(--sans);
  font-weight: 600;
  font-size: clamp(32px, 3.6vw, 56px);
  letter-spacing: -0.02em;
  margin: 0;
  line-height: 1.02;
  max-width: 24ch;
}
.section-head h2 .accent { color: var(--accent); }
.section-head .meta {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--mute);
}
.section.dark .section-head .meta { color: rgba(242, 238, 230, 0.5); }