/* =========================================================
   Godel Analytics — Organisational Network Analysis
   Aesthetic: refined dark "intelligence observatory"
   ========================================================= */

/* ---- Reset ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { min-height: 100%; }
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ol, ul { list-style: none; }

/* ---- Tokens ---- */
:root {
  --ink:      #070810;
  --ink-1:    #0a0c16;
  --ink-2:    #0e1120;
  --ink-3:    #141931;
  --panel:    rgba(255, 255, 255, 0.022);
  --panel-2:  rgba(255, 255, 255, 0.035);

  --text:     #edeef5;
  --text-dim: #b2b7c8;
  --muted:    #757c92;
  --line:     rgba(255, 255, 255, 0.10);
  --line-soft:rgba(255, 255, 255, 0.055);

  --gold:     #ffc24b;
  --gold-soft:#ffdd92;
  --gold-deep:#e0962a;
  --blue:     #5d8bf4;
  --cyan:     #54d6e0;

  --font-display: 'Fraunces', Georgia, 'Times New Roman', serif;
  --font-body:    'Hanken Grotesk', system-ui, -apple-system, sans-serif;
  --font-mono:    'JetBrains Mono', ui-monospace, 'SFMono-Regular', monospace;

  --maxw: 1180px;
  --pad: clamp(1.25rem, 5vw, 3rem);
  --section-y: clamp(5rem, 11vw, 9rem);

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

/* ---- Base ---- */
body {
  font-family: var(--font-body);
  background: var(--ink);
  color: var(--text);
  line-height: 1.65;
  font-size: clamp(1rem, 0.97rem + 0.2vw, 1.075rem);
  font-weight: 400;
  letter-spacing: 0.002em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  position: relative;
}

/* Atmospheric glow + grain over the whole page */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(60vw 60vw at 78% -8%, rgba(255, 194, 75, 0.10), transparent 60%),
    radial-gradient(55vw 55vw at 8% 8%, rgba(93, 139, 244, 0.10), transparent 60%),
    radial-gradient(70vw 50vw at 50% 108%, rgba(84, 214, 224, 0.05), transparent 60%);
}
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  opacity: 0.04;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
main, .nav, .footer { position: relative; z-index: 2; }

.container {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--pad);
}

.display { font-family: var(--font-display); font-optical-sizing: auto; }
.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--gold);
  font-weight: 500;
}
.nowrap { white-space: nowrap; }
em { font-style: italic; }

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.01em;
  padding: 0.85em 1.5em;
  border-radius: 100px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.4s var(--ease), background 0.3s, border-color 0.3s, color 0.3s, box-shadow 0.4s;
  white-space: nowrap;
}
.btn--sm { padding: 0.6em 1.1em; font-size: 0.85rem; }
.btn--lg { padding: 1.05em 2em; font-size: 1.05rem; }
.btn--solid {
  background: var(--gold);
  color: #1a1304;
  box-shadow: 0 0 0 0 rgba(255, 194, 75, 0.5);
}
.btn--solid:hover {
  transform: translateY(-2px);
  background: var(--gold-soft);
  box-shadow: 0 14px 38px -12px rgba(255, 194, 75, 0.55);
}
.btn--ghost {
  border-color: var(--line);
  color: var(--text);
  background: rgba(255, 255, 255, 0.015);
}
.btn--ghost:hover {
  border-color: rgba(255, 194, 75, 0.5);
  color: var(--gold-soft);
  transform: translateY(-2px);
}

/* ---- Brand mark ---- */
.brand { display: inline-flex; align-items: center; gap: 0.6rem; }
.brand__mark { width: 30px; height: 30px; overflow: visible; }
.brand__mark line { stroke: rgba(255, 255, 255, 0.28); stroke-width: 1.1; }
.brand__mark .m-dim  { fill: #59617b; }
.brand__mark .m-cool { fill: var(--blue); }
.brand__mark .m-hub  { fill: var(--gold); filter: drop-shadow(0 0 5px rgba(255, 194, 75, 0.7)); }
.brand__name {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.32rem;
  letter-spacing: -0.01em;
  line-height: 1;
  color: var(--text);
}
.brand__sub {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
  display: block;
  margin-top: 3px;
}

/* ============ NAV ============ */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  padding: 1.1rem 0;
  transition: background 0.4s, backdrop-filter 0.4s, border-color 0.4s, padding 0.4s;
  border-bottom: 1px solid transparent;
}
.nav.is-scrolled {
  background: rgba(7, 8, 16, 0.72);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom-color: var(--line-soft);
  padding: 0.7rem 0;
}
.nav__inner { display: flex; align-items: center; justify-content: space-between; gap: 2rem; }
.nav__links { display: flex; gap: 2rem; }
.nav__links a {
  font-size: 0.92rem;
  color: var(--text-dim);
  position: relative;
  transition: color 0.25s;
}
.nav__links a::after {
  content: "";
  position: absolute;
  left: 0; bottom: -5px;
  width: 0; height: 1px;
  background: var(--gold);
  transition: width 0.3s var(--ease);
}
.nav__links a:hover { color: var(--text); }
.nav__links a:hover::after { width: 100%; }
.nav__right { display: flex; align-items: center; gap: 1rem; }

.pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-dim);
  padding: 0.4em 0.85em;
  border: 1px solid var(--line);
  border-radius: 100px;
}
.pill__dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 8px var(--gold);
  animation: pulse-dot 2.4s ease-in-out infinite;
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.8); }
}

/* ============ HERO ============ */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: 6rem;
  padding-bottom: 4rem;
}
.hero__canvas { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 0; }
.hero__scrim {
  position: absolute; inset: 0; z-index: 1;
  pointer-events: none;
  background:
    linear-gradient(105deg, var(--ink) 0%, rgba(7, 8, 16, 0.92) 30%, rgba(7, 8, 16, 0.55) 52%, rgba(7, 8, 16, 0.1) 78%, transparent 100%),
    linear-gradient(0deg, var(--ink) 0%, transparent 22%);
}
.hero__inner { position: relative; z-index: 2; }
.hero__eyebrow { margin-bottom: 1.5rem; }

.hero__title {
  font-family: var(--font-display);
  font-optical-sizing: auto;
  font-weight: 400;
  font-size: clamp(2.6rem, 1.4rem + 5.4vw, 5.6rem);
  line-height: 0.98;
  letter-spacing: -0.025em;
  max-width: 16ch;
  margin-bottom: 1.8rem;
}
.hero__title em {
  font-style: italic;
  color: var(--gold);
  font-weight: 400;
}
.hero__lede {
  max-width: 50ch;
  color: var(--text-dim);
  font-size: clamp(1.05rem, 1rem + 0.4vw, 1.25rem);
  line-height: 1.6;
  margin-bottom: 2.5rem;
}
.hero__lede .nowrap { color: var(--text); }
.hero__cta { display: flex; flex-wrap: wrap; gap: 1rem; margin-bottom: 3rem; }

.hero__legend {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.4rem;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.06em;
  color: var(--muted);
}
.legend__item { display: inline-flex; align-items: center; gap: 0.5em; }
.dot { width: 9px; height: 9px; border-radius: 50%; display: inline-block; }
.dot--cool { background: var(--blue); box-shadow: 0 0 6px rgba(93,139,244,0.7); }
.dot--hub  { background: var(--gold); box-shadow: 0 0 7px rgba(255,194,75,0.8); }
.dot--edge { width: 14px; height: 0; border-top: 1px solid rgba(255,255,255,0.4); border-radius: 0; }
.legend__hint { color: var(--gold); margin-left: auto; }

.hero__scroll {
  position: absolute;
  bottom: 2rem; left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex; flex-direction: column; align-items: center; gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.65rem; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--muted);
}
.hero__scroll i {
  width: 1px; height: 38px;
  background: linear-gradient(var(--muted), transparent);
  animation: scroll-line 2.2s ease-in-out infinite;
  transform-origin: top;
}
@keyframes scroll-line {
  0% { transform: scaleY(0); opacity: 0; }
  40% { transform: scaleY(1); opacity: 1; }
  100% { transform: scaleY(1) translateY(38px); opacity: 0; }
}

/* ============ SECTIONS ============ */
.section { padding-block: var(--section-y); position: relative; }
.section__head { margin-bottom: clamp(2.5rem, 5vw, 4rem); }
.section__head .eyebrow { margin-bottom: 1rem; }
.section__title {
  font-weight: 400;
  font-size: clamp(2rem, 1.3rem + 2.6vw, 3.4rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  max-width: 18ch;
}

/* ---- What is ONA ---- */
.ona { border-top: 1px solid var(--line-soft); }
.ona__grid {
  display: grid;
  grid-template-columns: 1.25fr 1fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: start;
}
.ona__statement {
  font-weight: 400;
  font-size: clamp(1.7rem, 1.1rem + 2.4vw, 3rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
}
.ona__statement em { color: var(--gold); font-style: italic; }
.ona__body { color: var(--text-dim); padding-top: 0.6rem; }
.ona__body p + p { margin-top: 1.1rem; }

.compare {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: clamp(1rem, 3vw, 2.5rem);
  margin-top: clamp(3rem, 6vw, 5rem);
  padding: clamp(1.5rem, 4vw, 3rem);
  border: 1px solid var(--line-soft);
  border-radius: 18px;
  background: var(--panel);
}
.compare__panel { text-align: center; }
.compare__svg { width: 100%; max-width: 280px; margin: 0 auto 1.2rem; height: auto; }
.compare__svg .edges line { stroke-width: 1.4; }
.compare__svg--tree .edges line { stroke: rgba(255,255,255,0.16); }
.compare__svg--tree .nodes circle { fill: #4a5170; }
.compare__svg--net .edges line { stroke: rgba(255,194,75,0.28); }
.compare__svg--net .nodes circle { fill: var(--blue); }
.compare__svg--net .nodes circle.hub {
  fill: var(--gold);
  filter: drop-shadow(0 0 6px rgba(255,194,75,0.8));
}
.compare__panel--live .compare__svg--net .edges line {
  animation: edge-shimmer 3s ease-in-out infinite;
}
@keyframes edge-shimmer { 0%,100% { opacity: 0.5; } 50% { opacity: 1; } }
.compare figcaption {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text);
}
.compare__tag {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 400;
  margin-bottom: 0.35rem;
}
.compare__tag--accent { color: var(--gold); }
.compare__arrow {
  display: flex; flex-direction: column; align-items: center; gap: 0.4rem;
  color: var(--muted);
}
.compare__arrow span {
  font-family: var(--font-mono); font-size: 0.62rem;
  letter-spacing: 0.18em; text-transform: uppercase;
}
.compare__arrow svg { width: 54px; }
.compare__arrow svg path { fill: none; stroke: var(--gold); stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }

/* ---- Capabilities ---- */
.capabilities { border-top: 1px solid var(--line-soft); }
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
  border-radius: 18px;
  overflow: hidden;
}
.card {
  position: relative;
  padding: clamp(1.6rem, 3vw, 2.3rem);
  background: var(--ink-1);
  transition: background 0.4s;
  overflow: hidden;
}
.card::before {
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(120% 80% at 100% 0%, rgba(255,194,75,0.10), transparent 55%);
  opacity: 0; transition: opacity 0.4s;
}
.card:hover { background: var(--ink-2); }
.card:hover::before { opacity: 1; }
.card__glyph { display: block; width: 52px; height: 52px; margin-bottom: 1.6rem; }
.card__glyph svg { width: 100%; height: 100%; overflow: visible; }
.card__glyph line  { stroke: rgba(255,255,255,0.22); stroke-width: 1.3; transition: stroke 0.4s; }
.card__glyph line.g-bridge { stroke: rgba(255,194,75,0.5); }
.card__glyph circle { transition: fill 0.4s, filter 0.4s; }
.card__glyph .g-dim  { fill: #4d5470; }
.card__glyph .g-cool { fill: var(--blue); }
.card__glyph .g-edge { fill: transparent; stroke: var(--cyan); stroke-width: 1.4; }
.card__glyph .g-hub  { fill: var(--gold); filter: drop-shadow(0 0 5px rgba(255,194,75,0.6)); }
.card__glyph .g-warn { fill: var(--gold); filter: drop-shadow(0 0 6px rgba(255,194,75,0.75)); }
.card:hover .card__glyph line { stroke: rgba(255,194,75,0.45); }
.card__index {
  position: absolute; top: 1.5rem; right: 1.6rem;
  font-family: var(--font-mono);
  font-size: 0.75rem; letter-spacing: 0.1em;
  color: var(--muted);
}
.card__title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.4rem;
  letter-spacing: -0.01em;
  margin-bottom: 0.7rem;
}
.card__text { color: var(--text-dim); font-size: 0.97rem; line-height: 1.6; }

/* ---- Measures ---- */
.measures { border-top: 1px solid var(--line-soft); }
.measures__list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: clamp(1.5rem, 3vw, 2.5rem);
}
.measure {
  padding-top: 1.6rem;
  border-top: 1px solid var(--line);
}
.measure__term {
  display: flex; align-items: center; gap: 0.7rem;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.5rem;
  letter-spacing: -0.01em;
  margin-bottom: 0.6rem;
}
.measure__sym {
  display: inline-grid; place-items: center;
  width: 2.1rem; height: 2.1rem;
  flex: none;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-style: italic;
  color: var(--gold);
  border: 1px solid rgba(255,194,75,0.35);
  border-radius: 8px;
  background: rgba(255,194,75,0.06);
}
.measure__def { color: var(--text-dim); font-size: 0.97rem; }

/* ---- Approach ---- */
.approach { border-top: 1px solid var(--line-soft); }
.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1px;
  background: var(--line-soft);
}
.step {
  position: relative;
  padding: 2rem clamp(1.2rem, 3vw, 2rem) 2.2rem 0;
  background: var(--ink);
}
.step__num {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  color: var(--gold);
  display: block;
  margin-bottom: 1.4rem;
  padding-top: 1.4rem;
  border-top: 1px solid var(--gold);
  width: 2.6rem;
}
.step__title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.6rem;
  margin-bottom: 0.7rem;
}
.step__text { color: var(--text-dim); font-size: 0.96rem; }

/* ---- Contact ---- */
.contact {
  border-top: 1px solid var(--line-soft);
  text-align: center;
}
.contact__inner { max-width: 760px; }
.contact .eyebrow { margin-bottom: 1.2rem; }
.contact__title {
  font-weight: 400;
  font-size: clamp(2rem, 1.2rem + 3vw, 3.6rem);
  line-height: 1.06;
  letter-spacing: -0.02em;
  margin-bottom: 1.5rem;
}
.contact__text {
  color: var(--text-dim);
  font-size: 1.1rem;
  max-width: 48ch;
  margin: 0 auto 2.5rem;
}
.contact__cta { margin-bottom: 1.6rem; }
.contact__cta .btn--solid { font-family: var(--font-mono); letter-spacing: 0.01em; }
.contact__meta {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

/* ============ FOOTER ============ */
.footer {
  border-top: 1px solid var(--line-soft);
  padding-top: clamp(3rem, 6vw, 4.5rem);
  background: var(--ink-1);
}
.footer__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  padding-bottom: 3rem;
}
.footer__tag {
  color: var(--text-dim);
  margin-top: 1.2rem;
  max-width: 32ch;
  font-size: 0.98rem;
}
.footer__godel {
  color: var(--muted);
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.05rem;
  line-height: 1.5;
  max-width: 42ch;
  justify-self: end;
}
.footer__base {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding-block: 1.6rem;
  border-top: 1px solid var(--line-soft);
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.06em;
  color: var(--muted);
}
.footer__base a:hover { color: var(--gold); }

/* ============ REVEAL ANIMATIONS ============ */
[data-reveal] {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
  transition-delay: calc(var(--i, 0) * 75ms);
}
[data-reveal].is-visible { opacity: 1; transform: none; }

/* Hero entrance (load) */
.hero__eyebrow, .hero__title, .hero__lede, .hero__cta, .hero__legend {
  opacity: 0;
  animation: rise 1s var(--ease) forwards;
}
.hero__eyebrow { animation-delay: 0.15s; }
.hero__title   { animation-delay: 0.3s; }
.hero__lede    { animation-delay: 0.5s; }
.hero__cta     { animation-delay: 0.7s; }
.hero__legend  { animation-delay: 0.9s; }
@keyframes rise {
  from { opacity: 0; transform: translateY(28px); }
  to   { opacity: 1; transform: none; }
}

/* ============ RESPONSIVE ============ */
@media (max-width: 880px) {
  .nav__links { display: none; }
  .ona__grid { grid-template-columns: 1fr; gap: 1.5rem; }
  .compare { grid-template-columns: 1fr; }
  .compare__arrow { flex-direction: row; transform: rotate(90deg); margin: 0.5rem auto; }
  .footer__inner { grid-template-columns: 1fr; }
  .footer__godel { justify-self: start; }
}
@media (max-width: 600px) {
  .nav__right .btn { display: none; }
  .hero__legend { font-size: 0.68rem; gap: 1rem; }
  .legend__hint { margin-left: 0; flex-basis: 100%; }
  .hero__scroll { display: none; }
}

/* ---- Scrollbar ---- */
::-webkit-scrollbar { width: 11px; }
::-webkit-scrollbar-track { background: var(--ink); }
::-webkit-scrollbar-thumb { background: var(--ink-3); border-radius: 10px; border: 3px solid var(--ink); }
::-webkit-scrollbar-thumb:hover { background: #232a48; }
::selection { background: rgba(255, 194, 75, 0.28); color: #fff; }

/* ---- Reduced motion ---- */
@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;
  }
  [data-reveal] { opacity: 1; transform: none; }
  .hero__eyebrow, .hero__title, .hero__lede, .hero__cta, .hero__legend { opacity: 1; }
}