/* ============================================================
   KS TECH GROUP — Design System
   Tokens: Ivory / Graphite / Deep Space / Titanium / Chrome / Deep Navy
   Type: Fraunces (serif display, major headlines) + Bricolage Grotesque
         (refined sans, subheads/UI) + Space Grotesk (technical/labels)
         + Inter (body)

   Note on typography: the brand reference is Klim Type Foundry's
   Domaine Sans Fine — a paid commercial typeface. It cannot be loaded
   from a free CDN. Fraunces was chosen as the serif half of the
   approved serif+sans pairing: a free, variable, editorial display
   serif built for warm, premium, magazine-style use. Bricolage
   Grotesque carries the "refined sans serif" role for subheads and UI.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,300;0,9..144,400;0,9..144,500;1,9..144,400&family=Bricolage+Grotesque:opsz,wght@12..96,200..800&family=Space+Grotesk:wght@400;500;600&family=Inter:wght@400;500;600&display=swap');

:root {
  /* Color tokens */
  --ivory: #F7F6F2;
  --graphite: #111214;
  --deep-space: #080A0D;
  --titanium: #C6CBD2;
  --chrome: #E6E8EB;
  --soft-gray: #8C929A;
  --deep-navy: #111A2E;

  /* Accent palette — pulled from data-center facility lighting: magenta,
     amber, electric cyan, violet, glowing against the dark base rather
     than replacing it. Used sparingly (hero glow, badge, hover states) —
     never as a section background. */
  --iri-blue: #4FC3E8;
  --iri-violet: #A855D9;
  --iri-cyan: #2FE0C4;
  --iri-gold: #F5B942;
  --iri-magenta: #E8368F;

  --line: rgba(198, 203, 210, 0.28);
  --line-soft: rgba(198, 203, 210, 0.14);

  /* Type */
  --font-serif: 'Fraunces', 'Georgia', serif;
  --font-display: 'Bricolage Grotesque', 'Helvetica Neue', sans-serif;
  --font-label: 'Space Grotesk', 'Helvetica Neue', sans-serif;
  --font-body: 'Inter', -apple-system, sans-serif;

  --container: 1240px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  margin: 0;
  background: var(--ivory);
  color: var(--graphite);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

body.dark {
  background: var(--deep-space);
  color: var(--ivory);
}

img { max-width: 100%; display: block; }
a { color: inherit; }

/* ---------- Skip link ---------- */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--graphite);
  color: var(--ivory);
  padding: 12px 20px;
  z-index: 1000;
  font-family: var(--font-label);
  font-size: 13px;
}
.skip-link:focus {
  left: 16px;
  top: 16px;
}

/* ---------- Focus states ---------- */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 2px solid var(--iri-blue);
  outline-offset: 3px;
}

/* ---------- Layout ---------- */
.wrap {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 32px;
}
@media (max-width: 640px) {
  .wrap { padding: 0 20px; }
}

section { padding: 96px 0; }
@media (max-width: 780px) {
  section { padding: 64px 0; }
}

/* ---------- Eyebrow / technical labels ---------- */
.eyebrow {
  font-family: var(--font-label);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--soft-gray);
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 20px;
}
.eyebrow::before {
  content: '';
  width: 22px;
  height: 2px;
  background: linear-gradient(90deg, var(--iri-cyan), var(--soft-gray) 85%);
  display: inline-block;
}

/* ---------- Typography ---------- */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 300;
  line-height: 1.02;
  margin: 0 0 0.4em;
  letter-spacing: -0.01em;
}
h1 {
  font-family: var(--font-serif);
  font-size: clamp(2.7rem, 6.2vw, 5.2rem);
  font-weight: 400;
  font-style: normal;
  text-transform: none;
  letter-spacing: -0.01em;
  line-height: 1.05;
}
h2 {
  font-size: clamp(1.9rem, 3.6vw, 3rem);
  font-weight: 340;
  text-transform: none;
  letter-spacing: -0.01em;
}
h3 { font-size: clamp(1.3rem, 2vw, 1.7rem); font-weight: 500; text-transform: none; }
h4 { font-size: 1.1rem; font-family: var(--font-label); font-weight: 500; letter-spacing: 0.01em; text-transform: none; }

p { margin: 0 0 1.1em; }
.lede {
  font-size: clamp(1.05rem, 1.6vw, 1.3rem);
  color: var(--graphite);
  opacity: 0.82;
  max-width: 640px;
}
body.dark .lede { color: var(--ivory); }

.label-sm {
  font-family: var(--font-label);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--soft-gray);
}

/* ---------- Header / Nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(247, 246, 242, 0.86);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line-soft);
}
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 84px;
}
.nav-right {
  display: flex;
  align-items: center;
  gap: 22px;
}
.logo {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: 1.2rem;
  letter-spacing: 0.01em;
  text-decoration: none;
  color: var(--graphite);
  display: flex;
  align-items: baseline;
  gap: 8px;
}
.logo .degree { font-size: 0.6em; vertical-align: super; opacity: 0.6; }
.logo .mark {
  font-family: var(--font-label);
  font-size: 10px;
  letter-spacing: 0.16em;
  color: var(--soft-gray);
  border: 1px solid var(--line);
  padding: 3px 6px;
}
.nav-circle-btn {
  display: none;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid var(--line);
  text-decoration: none;
  color: var(--graphite);
  font-family: var(--font-label);
  font-size: 15px;
  transition: background .2s ease, color .2s ease, transform .2s ease;
  flex-shrink: 0;
}
.nav-circle-btn:hover { background: var(--graphite); color: var(--ivory); transform: rotate(45deg); }
@media (min-width: 1081px) {
  .nav-circle-btn { display: inline-flex; }
}

.nav-cs-btn {
  display: none;
  align-items: center;
  font-family: var(--font-label);
  font-size: 11.5px;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--graphite);
  border: 1px solid var(--graphite);
  padding: 10px 16px;
  white-space: nowrap;
  transition: background .2s ease, color .2s ease;
}
.nav-cs-btn:hover { background: var(--graphite); color: var(--ivory); }
@media (min-width: 1081px) {
  .nav-cs-btn { display: inline-flex; }
}
.mobile-cs-link { display: none; }
@media (max-width: 1080px) {
  nav.primary a.mobile-cs-link {
    display: block;
    text-transform: uppercase;
    text-decoration: none;
    color: var(--graphite);
    border: 1px solid var(--graphite);
    padding: 12px 18px;
    margin-top: 8px;
    opacity: 1;
  }
}
nav.primary {
  display: flex;
  align-items: center;
  gap: 34px;
}
nav.primary a {
  font-family: var(--font-label);
  font-size: 12.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--graphite);
  opacity: 0.72;
  transition: opacity .2s ease;
  padding: 6px 0;
  border-bottom: 1px solid transparent;
}
nav.primary a:hover,
nav.primary a[aria-current="page"] { opacity: 1; border-bottom-color: var(--graphite); }

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--line);
  padding: 8px 10px;
  font-family: var(--font-label);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
}

@media (max-width: 1080px) {
  nav.primary {
    position: fixed;
    inset: 84px 0 0 0;
    background: var(--ivory);
    flex-direction: column;
    align-items: flex-start;
    padding: 32px;
    gap: 22px;
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: opacity .25s ease, transform .25s ease;
  }
  nav.primary.open {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }
  nav.primary a { font-size: 15px; }
  .nav-toggle { display: block; }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-label);
  font-size: 12.5px;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 15px 26px;
  border: 1px solid var(--graphite);
  color: var(--graphite);
  background: transparent;
  cursor: pointer;
  transition: background .2s ease, color .2s ease, border-color .2s ease;
}
.btn-primary { background: var(--graphite); color: var(--ivory); }
.btn-primary:hover { background: var(--deep-navy); border-color: var(--deep-navy); }
.btn-ghost:hover { background: var(--graphite); color: var(--ivory); }
body.dark .btn { border-color: var(--titanium); color: var(--ivory); }
body.dark .btn-primary { background: var(--ivory); color: var(--deep-space); }
body.dark .btn-primary:hover { background: var(--chrome); }
body.dark .btn-ghost:hover { background: var(--ivory); color: var(--deep-space); }
.btn-row { display: flex; gap: 14px; flex-wrap: wrap; }

/* ---------- Hero ---------- */
.hero {
  background: var(--deep-space);
  color: var(--ivory);
  position: relative;
  overflow: hidden;
  padding: 130px 0 110px;
}

/* Layered iridescent backdrop — soft chrome/liquid-metal light, not photography */
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}
.hero-bg::before,
.hero-bg::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  filter: blur(70px);
  opacity: 0.55;
  mix-blend-mode: screen;
}
.hero-bg::before {
  width: 620px;
  height: 620px;
  top: -220px;
  right: -140px;
  background: conic-gradient(from 140deg, var(--iri-blue), var(--iri-violet), var(--iri-magenta), var(--iri-gold), var(--iri-blue));
  animation: driftA 42s ease-in-out infinite alternate;
  opacity: 0.62;
}
.hero-bg::after {
  width: 480px;
  height: 480px;
  bottom: -200px;
  left: -120px;
  background: conic-gradient(from 300deg, var(--iri-gold), var(--iri-cyan), var(--iri-magenta), var(--iri-blue), var(--iri-gold));
  animation: driftB 55s ease-in-out infinite alternate;
  opacity: 0.5;
}
@keyframes driftA {
  from { transform: translate(0,0) scale(1); }
  to { transform: translate(-40px, 30px) scale(1.08); }
}
@keyframes driftB {
  from { transform: translate(0,0) scale(1); }
  to { transform: translate(30px, -20px) scale(1.05); }
}
/* Third glow layer — a warm magenta pool near center, like a status-light
   reflection on a facility floor. Reuses the existing .grain span already
   present in every hero-bg block, so no HTML changes are required. */
.hero-bg .grain {
  position: absolute;
  width: 520px;
  height: 340px;
  left: 50%;
  top: 62%;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  background: radial-gradient(ellipse at center, var(--iri-magenta) 0%, var(--iri-violet) 45%, transparent 72%);
  filter: blur(90px);
  opacity: 0.32;
  mix-blend-mode: screen;
  animation: driftC 65s ease-in-out infinite alternate;
}
@keyframes driftC {
  from { transform: translate(-50%, -50%) scale(1); }
  to { transform: translate(-46%, -54%) scale(1.12); }
}
@media (prefers-reduced-motion: reduce) {
  .hero-bg::before, .hero-bg::after, .hero-bg .grain { animation: none; }
}

.hero .wrap {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
  position: relative;
  z-index: 2;
}
@media (max-width: 900px) {
  .hero .wrap { grid-template-columns: 1fr; }
  .hero { padding: 96px 0 72px; }
}
.hero h1 { color: var(--ivory); }
.hero .lede { color: var(--titanium); opacity: 1; }

/* Technical corner labels, bottom of hero — index / caption / locale */
.hero-foot {
  position: relative;
  z-index: 2;
  margin-top: 64px;
  padding-top: 22px;
  border-top: 1px solid rgba(230,232,235,0.14);
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 24px;
  flex-wrap: wrap;
}
.hero-foot .label-sm { color: var(--soft-gray); }
.hero-foot .cap {
  font-family: var(--font-body);
  font-size: 12.5px;
  color: var(--titanium);
  opacity: 0.75;
  max-width: 480px;
  margin: 0;
}
@media (max-width: 640px) {
  .hero-foot { margin-top: 44px; }
}

/* Glass panel — frosted, translucent, floating over the iridescent backdrop */
.glass-panel {
  background: rgba(17, 18, 20, 0.42);
  backdrop-filter: blur(22px) saturate(140%);
  -webkit-backdrop-filter: blur(22px) saturate(140%);
  border: 1px solid rgba(230, 232, 235, 0.14);
  border-radius: 18px;
  padding: 48px;
  box-shadow: 0 24px 60px rgba(0,0,0,0.35), inset 0 1px 0 rgba(255,255,255,0.06);
}
@media (max-width: 640px) {
  .glass-panel { padding: 32px 26px; border-radius: 14px; }
}

/* Signature visual: wireframe particle dune + rotating identity badge */
.mesh-visual {
  width: 100%;
  aspect-ratio: 1 / 1;
  max-width: 480px;
  margin: 0 auto;
  border-radius: 18px;
  overflow: hidden;
  border: 1px solid rgba(230, 232, 235, 0.14);
  box-shadow: 0 24px 60px rgba(0,0,0,0.35);
}
.mesh-visual svg { width: 100%; height: 100%; display: block; }
.badge-spin { transform-origin: 180px 200px; animation: badgeSpin 40s linear infinite; }
@keyframes badgeSpin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) {
  .badge-spin { animation: none; }
}

/* Legacy orbital visual (kept for reuse elsewhere if needed) */
.orbital {
  width: 100%;
  aspect-ratio: 1 / 1;
  max-width: 480px;
  margin: 0 auto;
}
.orbital svg { width: 100%; height: 100%; }
.orbit-ring {
  fill: none;
  stroke: url(#ringGrad);
  stroke-width: 0.6;
  opacity: 0.55;
}
.orbit-ring-alt { fill:none; stroke: var(--titanium); stroke-width: 0.4; opacity: 0.35; }
.orbit-dot { fill: var(--iri-cyan); }
.orbit-node { transform-origin: 250px 250px; animation: spin 60s linear infinite; }
.orbit-node.slow { animation-duration: 90s; animation-direction: reverse; }
.orbit-node.slower { animation-duration: 130s; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- Grids / cards ---------- */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; }
@media (max-width: 900px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}
@media (min-width: 901px) and (max-width: 1100px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

.card {
  border: 1px solid var(--line);
  padding: 32px;
  background: var(--ivory);
  transition: border-color .2s ease, transform .2s ease;
}
.card:hover { border-color: var(--graphite); }
.card .label-sm { margin-bottom: 14px; display: block; }
.card ul { margin: 16px 0 0; padding-left: 18px; }
.card li { margin-bottom: 6px; color: var(--graphite); opacity: 0.85; font-size: 0.95rem; }

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 32px;
  margin-bottom: 56px;
}
@media (max-width: 780px) {
  .section-head { flex-direction: column; align-items: flex-start; gap: 16px; }
}

.divider {
  border: none;
  border-top: 1px solid var(--line);
  margin: 0;
}

/* ---------- Bands ---------- */
.band-navy { background: var(--deep-navy); color: var(--ivory); }
.band-navy .eyebrow, .band-navy .label-sm { color: var(--titanium); }
.band-graphite { background: var(--graphite); color: var(--ivory); }
.band-chrome { background: var(--chrome); }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--deep-space);
  color: var(--titanium);
  padding: 72px 0 32px;
}
.site-footer .wrap {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
}
@media (max-width: 780px) {
  .site-footer .wrap { grid-template-columns: 1fr 1fr; }
}
.site-footer h4 { color: var(--ivory); font-size: 13px; letter-spacing: 0.1em; margin-bottom: 18px; }
.site-footer a {
  display: block;
  text-decoration: none;
  color: var(--titanium);
  font-size: 14px;
  margin-bottom: 10px;
  opacity: 0.85;
}
.site-footer a:hover { opacity: 1; color: var(--iri-cyan); }
.footer-bottom {
  margin-top: 56px;
  padding-top: 24px;
  border-top: 1px solid rgba(198,203,210,0.15);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 12px;
  color: var(--soft-gray);
  font-family: var(--font-label);
}

/* ---------- Disclaimer / notice blocks ---------- */
.notice {
  border-left: 2px solid var(--soft-gray);
  padding: 18px 24px;
  background: var(--chrome);
  font-size: 0.92rem;
  color: var(--graphite);
  opacity: 0.9;
}
body.dark .notice { background: rgba(255,255,255,0.05); color: var(--ivory); border-color: var(--titanium); }
.page-hero .notice { background: rgba(255,255,255,0.06); color: var(--ivory); border-color: var(--titanium); }

.placeholder {
  color: #A9532F;
  font-family: var(--font-label);
  font-size: 0.82em;
  letter-spacing: 0.02em;
}

/* ---------- Table ---------- */
table.data-table { width: 100%; border-collapse: collapse; font-size: 0.95rem; }
.data-table th, .data-table td {
  text-align: left;
  padding: 14px 18px;
  border-bottom: 1px solid var(--line);
}
.data-table th { font-family: var(--font-label); font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--soft-gray); }

/* ---------- Forms ---------- */
.form-field { margin-bottom: 22px; }
.form-field label {
  display: block;
  font-family: var(--font-label);
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 8px;
  color: var(--soft-gray);
}
.form-field input,
.form-field textarea,
.form-field select {
  width: 100%;
  padding: 13px 14px;
  border: 1px solid var(--line);
  background: var(--ivory);
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--graphite);
}
.form-field input:focus,
.form-field textarea:focus,
.form-field select:focus { border-color: var(--graphite); }
.form-field .hint { font-size: 12px; color: var(--soft-gray); margin-top: 6px; }
.form-error { color: #A93F3F; font-size: 12px; margin-top: 6px; display: none; }
.form-field.invalid input,
.form-field.invalid textarea,
.form-field.invalid select { border-color: #A93F3F; }
.form-field.invalid .form-error { display: block; }
.consent { display: flex; align-items: flex-start; gap: 10px; font-size: 13px; color: var(--soft-gray); }
.consent input { width: auto; margin-top: 3px; }
.form-status { margin-top: 18px; font-size: 14px; font-family: var(--font-label); }

/* ---------- Breadcrumb / meta rows ---------- */
.meta-row {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  font-family: var(--font-label);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--soft-gray);
  text-transform: uppercase;
  margin-bottom: 18px;
}

.status-tag {
  display: inline-block;
  font-family: var(--font-label);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 5px 10px;
  border: 1px solid var(--line);
  color: var(--soft-gray);
}

/* ---------- Page hero (non-home) ---------- */
.page-hero {
  position: relative;
  overflow: hidden;
  background: var(--deep-space);
  color: var(--ivory);
  padding: 78px 0 68px;
}
.page-hero .wrap { position: relative; z-index: 2; }
.page-hero .glass-panel { max-width: 760px; }
.page-hero .lede { color: var(--titanium); opacity: 1; }
.page-hero .eyebrow { margin-bottom: 20px; color: var(--titanium); }
.page-hero .eyebrow::before { background: linear-gradient(90deg, var(--iri-cyan), var(--titanium) 85%); }
.page-hero h1 { color: var(--ivory); }
.page-hero .hero-bg::before { width: 420px; height: 420px; top: -160px; right: -100px; }
.page-hero .hero-bg::after { width: 340px; height: 340px; bottom: -160px; left: -100px; }
.page-hero .hero-bg .grain { width: 360px; height: 220px; opacity: 0.24; }
.page-hero .meta-row { color: var(--titanium); }

/* ---------- Founder portrait ---------- */
.portrait-frame {
  border: 1px solid var(--line);
  padding: 10px;
  background: var(--ivory);
}
.portrait-frame img { width: 100%; height: auto; filter: grayscale(6%); }

/* ---------- Article ---------- */
.article-body h2 { margin-top: 1.6em; }
.article-body h3 { margin-top: 1.3em; }
.article-body p { max-width: 720px; }
.article-body ul, .article-body ol { max-width: 720px; padding-left: 22px; }

/* ---------- Utility ---------- */
.mt-0 { margin-top: 0; }
.center { text-align: center; }
.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}