/* ==========================================================================
   KTS Global Solutions — NODE-16
   Apex black · Sovereign champagne · KQAS green
   ========================================================================== */

:root {
  --apex-black: #0a0a0a;
  --apex-black-2: #0c0c0c;
  --sovereign-champagne: #c8b57a;
  --sovereign-champagne-warm: #d4c089;
  --kqas-green: #4FC8A0;
  --ink: rgba(255, 255, 255, 0.92);
  --ink-muted: rgba(255, 255, 255, 0.55);
  --ink-faint: rgba(255, 255, 255, 0.32);
  --hairline: rgba(200, 181, 122, 0.18);
  --hairline-strong: rgba(200, 181, 122, 0.32);

  --font-display: 'Cormorant Garamond', 'EB Garamond', Georgia, serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  --font-editorial: 'Cabinet Grotesk', 'Geist', 'Inter', sans-serif;
  --font-mono: 'Geist Mono', 'JetBrains Mono', ui-monospace, SFMono-Regular, monospace;
  --font-arabic: 'Scheherazade New', 'Noto Naskh Arabic', serif;

  --max-width: 1200px;
  --gutter-desktop: 96px;
  --gutter-mobile: 24px;
  --rhythm-desktop: 160px;
  --rhythm-mobile: 96px;
}

/* Reset --------------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
body, h1, h2, h3, h4, h5, h6, p, figure, blockquote, dl, dd { margin: 0; }
ul, ol { margin: 0; padding: 0; }
img, svg { display: block; max-width: 100%; }
button { font: inherit; color: inherit; background: none; border: none; cursor: pointer; padding: 0; }
input, textarea, select { font: inherit; color: inherit; }

/* Document ------------------------------------------------------------------ */
html, body {
  background: var(--apex-black);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  font-weight: 400;
  letter-spacing: 0;
  min-height: 100vh;
}

::selection { background: var(--sovereign-champagne); color: var(--apex-black); }

/* Skip link ----------------------------------------------------------------- */
.skip-link {
  position: absolute;
  left: -10000px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
  z-index: 100;
}
.skip-link:focus {
  left: 24px;
  top: 24px;
  width: auto;
  height: auto;
  padding: 12px 18px;
  background: var(--apex-black);
  color: var(--sovereign-champagne);
  border: 1px solid var(--sovereign-champagne);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
}

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

/* Layout containers --------------------------------------------------------- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding-left: var(--gutter-desktop);
  padding-right: var(--gutter-desktop);
}
@media (max-width: 900px) {
  .container { padding-left: var(--gutter-mobile); padding-right: var(--gutter-mobile); }
}

.section {
  padding-top: var(--rhythm-desktop);
  padding-bottom: var(--rhythm-desktop);
  border-top: 1px solid var(--hairline);
}
.section:first-of-type { border-top: 0; }
@media (max-width: 900px) {
  .section { padding-top: var(--rhythm-mobile); padding-bottom: var(--rhythm-mobile); }
}

/* Header -------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(10, 10, 10, 0.88);
  backdrop-filter: saturate(140%) blur(12px);
  -webkit-backdrop-filter: saturate(140%) blur(12px);
  border-bottom: 1px solid var(--hairline);
}
.site-header__inner {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 32px;
  padding-top: 22px;
  padding-bottom: 22px;
}

.brand {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 22px;
  letter-spacing: 0.02em;
  color: var(--ink);
  text-decoration: none;
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
}
.brand .brand__mark {
  color: var(--sovereign-champagne);
  font-style: italic;
}
.brand:hover { opacity: 0.92; }

.primary-nav {
  display: flex;
  justify-content: center;
  gap: 28px;
  flex-wrap: wrap;
}
.primary-nav a {
  font-family: var(--font-body);
  font-size: 13.5px;
  font-weight: 400;
  letter-spacing: 0.02em;
  color: var(--ink-muted);
  text-decoration: none;
  transition: opacity 200ms ease, color 200ms ease;
}
.primary-nav a:hover, .primary-nav a[aria-current="page"] { color: var(--ink); }

.kqas-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--ink-muted);
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.kqas-tag .dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--kqas-green);
  display: inline-block;
  animation: kqas-pulse 2.4s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}
.kqas-tag.warning { color: var(--sovereign-champagne); }
.kqas-tag.warning .dot { background: var(--sovereign-champagne); animation: none; }

@keyframes kqas-pulse {
  0%, 100% { transform: scale(1.0); opacity: 0.7; }
  50%      { transform: scale(1.04); opacity: 1.0; }
}
@media (prefers-reduced-motion: reduce) {
  .kqas-tag .dot { animation: none; opacity: 1; }
}

@media (max-width: 900px) {
  .site-header__inner { grid-template-columns: 1fr auto; row-gap: 12px; }
  .primary-nav { grid-column: 1 / -1; justify-content: flex-start; }
  .kqas-tag { font-size: 10px; }
}

/* Typographic registers ----------------------------------------------------- */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--sovereign-champagne);
  margin-bottom: 28px;
}

.display {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(40px, 6vw, 84px);
  line-height: 1.04;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.display em { font-style: italic; color: var(--sovereign-champagne-warm); font-weight: 400; }

.headline {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(32px, 4.4vw, 56px);
  line-height: 1.08;
  letter-spacing: -0.005em;
  color: var(--ink);
}
.headline em { font-style: italic; color: var(--sovereign-champagne-warm); font-weight: 400; }

.subhead {
  font-family: var(--font-editorial), var(--font-body);
  font-weight: 500;
  font-size: clamp(18px, 1.8vw, 22px);
  line-height: 1.4;
  letter-spacing: 0.005em;
  color: var(--ink);
}

.lede {
  font-family: var(--font-body);
  font-weight: 300;
  font-size: clamp(18px, 1.6vw, 21px);
  line-height: 1.55;
  color: var(--ink);
  max-width: 56ch;
}

.prose p {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  color: var(--ink);
  max-width: 60ch;
}
.prose p + p { margin-top: 1.1em; }
.prose em { font-style: italic; color: var(--ink); }
.prose strong { font-weight: 500; color: var(--ink); }
.prose a { color: var(--sovereign-champagne); text-decoration: none; border-bottom: 1px solid var(--hairline-strong); transition: opacity 200ms ease; }
.prose a:hover { opacity: 0.92; }

.aside-italic {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 400;
  font-size: 19px;
  line-height: 1.5;
  color: var(--sovereign-champagne-warm);
  max-width: 52ch;
}

/* Quiet links (champagne underline) ----------------------------------------- */
.quiet-link {
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.01em;
  color: var(--ink);
  text-decoration: none;
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--sovereign-champagne);
  transition: opacity 200ms ease;
}
.quiet-link::after {
  content: "→";
  color: var(--sovereign-champagne);
  font-family: var(--font-mono);
  font-size: 13px;
  transition: opacity 200ms ease;
}
.quiet-link:hover { opacity: 0.92; }

.quiet-link-row {
  display: flex;
  flex-wrap: wrap;
  gap: 40px;
  align-items: center;
}

/* Hero ---------------------------------------------------------------------- */
.hero {
  padding-top: 140px;
  padding-bottom: 160px;
  position: relative;
}
.hero__inner { max-width: 980px; }
.hero__display { margin-bottom: 40px; }
.hero__sub {
  font-family: var(--font-body);
  font-weight: 300;
  font-size: clamp(17px, 1.5vw, 20px);
  line-height: 1.6;
  color: var(--ink-muted);
  max-width: 60ch;
  margin-bottom: 56px;
}
.hero__rebalance {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 400;
  font-size: 16px;
  color: var(--sovereign-champagne);
  margin-top: -16px;
  margin-bottom: 36px;
  max-width: 56ch;
  display: none;
}
.hero__rebalance.is-visible { display: block; }

@media (max-width: 900px) {
  .hero { padding-top: 80px; padding-bottom: 96px; }
}

/* Section header ------------------------------------------------------------ */
.section-head {
  display: grid;
  grid-template-columns: 5fr 7fr;
  gap: 80px;
  align-items: end;
  margin-bottom: 80px;
}
.section-head--reverse { grid-template-columns: 7fr 5fr; }
@media (max-width: 900px) {
  .section-head, .section-head--reverse { grid-template-columns: 1fr; gap: 28px; margin-bottom: 56px; }
}

/* Two-column editorial ------------------------------------------------------ */
.cols-57 { display: grid; grid-template-columns: 5fr 7fr; gap: 80px; }
.cols-75 { display: grid; grid-template-columns: 7fr 5fr; gap: 80px; }
.cols-half { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; }
@media (max-width: 900px) {
  .cols-57, .cols-75, .cols-half { grid-template-columns: 1fr; gap: 40px; }
}

/* Metric tile (mono) -------------------------------------------------------- */
.metric-tile {
  border: 1px solid var(--hairline);
  padding: 36px 36px 32px;
  background: var(--apex-black);
}
.metric-tile__head {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin-bottom: 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.metric-row {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: baseline;
  padding: 14px 0;
  border-bottom: 1px solid var(--hairline);
}
.metric-row:last-child { border-bottom: 0; }
.metric-row__label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--ink-muted);
  text-transform: lowercase;
}
.metric-row__value {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: 28px;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.metric-row__value.mono {
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 400;
  color: var(--kqas-green);
  letter-spacing: 0.02em;
}

/* Big number block ---------------------------------------------------------- */
.bignum {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(56px, 7vw, 96px);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--ink);
}
.bignum-cap {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin-top: 14px;
}

/* Format grid (3x2) --------------------------------------------------------- */
.format-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-top: 1px solid var(--hairline);
  border-left: 1px solid var(--hairline);
}
@media (max-width: 1000px) { .format-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px)  { .format-grid { grid-template-columns: 1fr; } }

.format-tile {
  border-right: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
  padding: 40px 36px 36px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  text-decoration: none;
  color: inherit;
  transition: background 200ms ease, opacity 200ms ease;
  min-height: 280px;
}
.format-tile:hover { background: rgba(200, 181, 122, 0.03); }
.format-tile__head {
  font-family: var(--font-editorial), var(--font-body);
  font-weight: 700;
  font-size: 16px;
  letter-spacing: 0.005em;
  color: var(--ink);
}
.format-tile__head .dot-sep { color: var(--sovereign-champagne); margin: 0 6px; font-weight: 400; }
.format-tile__sub {
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.55;
  color: var(--ink-muted);
}
.format-tile__sample {
  font-family: var(--font-mono);
  font-size: 11.5px;
  line-height: 1.55;
  color: var(--ink-faint);
  margin-top: auto;
  padding-top: 20px;
  border-top: 1px solid var(--hairline);
  white-space: pre;
  overflow: hidden;
}
.format-tile__sample .k { color: var(--sovereign-champagne); }
.format-tile__sample .v { color: var(--kqas-green); }

/* Tariff table -------------------------------------------------------------- */
.tariff {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--hairline);
  border-left: 1px solid var(--hairline);
}
@media (max-width: 900px) { .tariff { grid-template-columns: 1fr; } }

.tariff__col {
  border-right: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
  padding: 48px 36px 44px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.tariff__tier {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--sovereign-champagne);
}
.tariff__price {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(34px, 3.6vw, 46px);
  line-height: 1.05;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.tariff__price .unit {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin-top: 12px;
}
.tariff__name {
  font-family: var(--font-editorial), var(--font-body);
  font-weight: 700;
  font-size: 17px;
  color: var(--ink);
  margin-top: 4px;
}
.tariff__note {
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.6;
  color: var(--ink-muted);
}
.tariff-foot {
  margin-top: 36px;
  font-family: var(--font-display);
  font-style: italic;
  font-size: 17px;
  color: var(--sovereign-champagne-warm);
  max-width: 60ch;
}

/* Code blocks --------------------------------------------------------------- */
.code-frame {
  border: 1px solid var(--hairline);
  background: var(--apex-black);
  padding: 28px 32px;
  overflow-x: auto;
}
.code-frame__head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 18px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--hairline);
}
.code-frame__title {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-muted);
}
.code-frame__mime {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--sovereign-champagne);
}
.code-frame pre, .code-frame code {
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--ink);
  white-space: pre;
  margin: 0;
}
.code-frame .k { color: var(--sovereign-champagne); }
.code-frame .v { color: var(--kqas-green); }
.code-frame .c { color: var(--ink-faint); font-style: italic; }
.code-frame .p { color: var(--ink-muted); }

/* Two-path access cards ----------------------------------------------------- */
.path-card {
  border: 1px solid var(--hairline);
  padding: 48px 40px 44px;
  display: flex;
  flex-direction: column;
  gap: 22px;
  min-height: 100%;
}
.path-card__tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--sovereign-champagne);
}
.path-card__head {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: 32px;
  line-height: 1.1;
  letter-spacing: -0.005em;
}
.path-card ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 8px;
}
.path-card li {
  font-family: var(--font-body);
  font-size: 14.5px;
  line-height: 1.55;
  color: var(--ink-muted);
  padding-left: 22px;
  position: relative;
}
.path-card li::before {
  content: "·";
  color: var(--sovereign-champagne);
  position: absolute;
  left: 8px;
  top: -2px;
  font-size: 18px;
}

/* Form (token program) ------------------------------------------------------ */
.application-form {
  display: flex;
  flex-direction: column;
  gap: 28px;
  max-width: 640px;
  margin-top: 56px;
}
.application-form .field { display: flex; flex-direction: column; gap: 10px; }
.application-form label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-muted);
}
.application-form input,
.application-form textarea,
.application-form select {
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--hairline);
  padding: 12px 0;
  font-family: var(--font-body);
  font-size: 16px;
  color: var(--ink);
  outline: none;
  transition: border-color 200ms ease;
}
.application-form input:focus,
.application-form textarea:focus,
.application-form select:focus {
  border-bottom-color: var(--sovereign-champagne);
}
.application-form textarea { min-height: 140px; resize: vertical; }
.application-form button[type="submit"] {
  align-self: flex-start;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 500;
  color: var(--ink);
  padding: 14px 0;
  border-bottom: 1px solid var(--sovereign-champagne);
  margin-top: 12px;
}
.application-form button[type="submit"]::after {
  content: "  →";
  color: var(--sovereign-champagne);
  font-family: var(--font-mono);
}

/* Definition list (provenance, protocol) ------------------------------------ */
.deflist { display: flex; flex-direction: column; }
.deflist__row {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 48px;
  padding: 32px 0;
  border-top: 1px solid var(--hairline);
}
.deflist__row:last-child { border-bottom: 1px solid var(--hairline); }
.deflist__term {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--sovereign-champagne);
  padding-top: 4px;
}
.deflist__def {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  color: var(--ink);
  max-width: 60ch;
}
@media (max-width: 700px) {
  .deflist__row { grid-template-columns: 1fr; gap: 12px; }
}

/* Footer -------------------------------------------------------------------- */
.site-footer {
  border-top: 1px solid var(--hairline);
  padding-top: 80px;
  padding-bottom: 64px;
  margin-top: 0;
}
.site-footer__grid {
  display: grid;
  grid-template-columns: 4fr 3fr 3fr 2fr;
  gap: 56px;
  margin-bottom: 64px;
}
@media (max-width: 900px) {
  .site-footer__grid { grid-template-columns: 1fr 1fr; gap: 40px; }
}
@media (max-width: 540px) {
  .site-footer__grid { grid-template-columns: 1fr; }
}
.site-footer__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--sovereign-champagne);
  margin-bottom: 18px;
}
.site-footer__brand {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: 28px;
  line-height: 1.2;
  color: var(--ink);
  margin-bottom: 8px;
}
.site-footer__brand em { font-style: italic; color: var(--sovereign-champagne); font-weight: 400; }
.site-footer__line {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 16px;
  color: var(--ink-muted);
  max-width: 36ch;
}
.site-footer ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.site-footer a {
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--ink-muted);
  text-decoration: none;
  transition: color 200ms ease;
}
.site-footer a:hover { color: var(--ink); }

.site-footer__bottom {
  border-top: 1px solid var(--hairline);
  padding-top: 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--ink-muted);
}

/* Focus ring (champagne) ---------------------------------------------------- */
:focus-visible {
  outline: 1px solid var(--sovereign-champagne);
  outline-offset: 3px;
}

/* Page transitions ---------------------------------------------------------- */
@media (prefers-reduced-motion: no-preference) {
  body {
    animation: page-in 600ms cubic-bezier(0.16, 1, 0.3, 1) both;
  }
  @keyframes page-in {
    from { opacity: 0; transform: translateY(4px); }
    to   { opacity: 1; transform: translateY(0); }
  }
}

/* Reveal-on-scroll (single section per viewport) ---------------------------- */
.reveal { opacity: 0; transform: translateY(8px); transition: opacity 600ms cubic-bezier(0.16, 1, 0.3, 1), transform 600ms cubic-bezier(0.16, 1, 0.3, 1); }
.reveal.is-in { opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  body { animation: none; }
}

/* Utility ------------------------------------------------------------------- */
.muted { color: var(--ink-muted); }
.champagne { color: var(--sovereign-champagne); }
.green { color: var(--kqas-green); }
.italic { font-style: italic; }
.mono { font-family: var(--font-mono); }
.divider { height: 1px; background: var(--hairline); margin: 80px 0; border: 0; }

/* Tariff page table layout (single, machine-readable) ----------------------- */
.tariff-matrix { width: 100%; border-collapse: collapse; margin-top: 56px; }
.tariff-matrix th, .tariff-matrix td {
  text-align: left;
  padding: 22px 24px 22px 0;
  border-bottom: 1px solid var(--hairline);
  font-family: var(--font-body);
  font-size: 15px;
  vertical-align: top;
}
.tariff-matrix th {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-muted);
  font-weight: 500;
  border-bottom-color: var(--hairline-strong);
}
.tariff-matrix td.price {
  font-family: var(--font-mono);
  color: var(--kqas-green);
  font-size: 14px;
  letter-spacing: 0.02em;
}
.tariff-matrix td.tier {
  font-family: var(--font-editorial), var(--font-body);
  font-weight: 700;
  color: var(--ink);
}