/* =====================================================================
   Latent Data — Design tokens + component styles
   ===================================================================== */

@import url("https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500;700&display=swap");

:root {
  /* Brand */
  --ld-teal-50:  #ECFEFA;
  --ld-teal-100: #CCFBF1;
  --ld-teal-200: #99F6E4;
  --ld-teal-300: #5EEAD4;
  --ld-teal-400: #2DD4BF;
  --ld-teal-500: #14B8A6;
  --ld-teal-600: #0F9488;
  --ld-teal-700: #0E7570;
  --ld-teal-800: #115E59;
  --ld-teal-900: #134E4A;

  --ld-amber-300: #FCD34D;
  --ld-amber-400: #FBBF24;
  --ld-amber-500: #F59E0B;
  --ld-amber-600: #D97706;

  --ld-magenta-500: #E11D74;
  --ld-lime-400:    #A3E635;

  /* Dark surfaces */
  --ld-abyss:    #050D1A;
  --ld-midnight: #0A1628;
  --ld-slate-1:  #0F1E33;
  --ld-slate-2:  #1A2A40;
  --ld-slate-3:  #2A3F5C;
  --ld-slate-4:  #3D5573;

  /* Foreground */
  --ld-fg-0: #F5F7FA;
  --ld-fg-1: #C7D0DC;
  --ld-fg-2: #8A98AB;
  --ld-fg-3: #5A6878;

  /* Semantic */
  --ld-bg:           var(--ld-midnight);
  --ld-bg-deep:      var(--ld-abyss);
  --ld-bg-raised:    var(--ld-slate-1);

  --ld-border:       var(--ld-slate-2);
  --ld-border-strong:var(--ld-slate-3);

  --ld-text:         var(--ld-fg-0);
  --ld-text-body:    var(--ld-fg-1);
  --ld-text-muted:   var(--ld-fg-2);
  --ld-text-subtle:  var(--ld-fg-3);

  --ld-primary:      var(--ld-teal-500);
  --ld-primary-hover:var(--ld-teal-600);
  --ld-primary-fg:   #052028;
  --ld-link:         var(--ld-teal-300);
  --ld-link-hover:   var(--ld-teal-200);

  /* Type */
  --ld-font-display: "Space Grotesk", ui-sans-serif, system-ui, sans-serif;
  --ld-font-body:    "Inter", ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  --ld-font-mono:    "JetBrains Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;

  /* Motion */
  --ld-ease-out:    cubic-bezier(0.16, 1, 0.3, 1);
  --ld-ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --ld-dur-micro:   120ms;
  --ld-dur-fast:    180ms;

  /* Layout */
  --ld-page-max: 1280px;
}

/* =====================================================================
   Base
   ===================================================================== */

*, *::before, *::after { box-sizing: border-box; }

html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--ld-font-body);
  font-size: 14px;
  font-weight: 400;
  line-height: 1.5;
  color: var(--ld-text-body);
  background: var(--ld-bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

::selection { background: rgba(20,184,166,0.35); color: var(--ld-fg-0); }

h1, h2, h3, h4, p { margin: 0; }

a {
  color: var(--ld-link);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--ld-dur-fast) var(--ld-ease-out),
              border-color var(--ld-dur-fast) var(--ld-ease-out);
}
a:hover { color: var(--ld-link-hover); }

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

/* =====================================================================
   Primitives
   ===================================================================== */

.eyebrow {
  font-family: var(--ld-font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ld-teal-300);
}

.ld-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 36px;
  padding: 0 16px;
  border-radius: 6px;
  font-family: var(--ld-font-body);
  font-size: 14px;
  font-weight: 500;
  line-height: 1;
  white-space: nowrap;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition:
    background var(--ld-dur-fast) var(--ld-ease-out),
    border-color var(--ld-dur-fast) var(--ld-ease-out),
    color var(--ld-dur-fast) var(--ld-ease-out),
    transform var(--ld-dur-micro) var(--ld-ease-out);
}
.ld-btn:active { transform: scale(0.98); }
.ld-btn:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px var(--ld-bg), 0 0 0 4px var(--ld-teal-300);
}

.ld-btn--primary {
  background: var(--ld-primary);
  color: var(--ld-primary-fg);
}
.ld-btn--primary:hover { background: var(--ld-primary-hover); }

.ld-btn--secondary {
  background: transparent;
  color: var(--ld-text);
  border-color: var(--ld-border-strong);
}
.ld-btn--secondary:hover {
  background: rgba(255,255,255,0.04);
  border-color: var(--ld-slate-4);
}

.ld-btn--sm { height: 28px; padding: 0 12px; font-size: 13px; }
.ld-btn--lg { height: 44px; padding: 0 20px; font-size: 15px; }

.ld-card {
  background: var(--ld-bg-raised);
  border: 1px solid var(--ld-border);
  border-radius: 8px;
  padding: 24px;
}

/* Pulse */
.ld-pulse {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--ld-amber-500);
  position: relative;
  flex-shrink: 0;
}
.ld-pulse::after {
  content: "";
  position: absolute;
  inset: -2px;
  border-radius: 50%;
  border: 1px solid var(--ld-amber-500);
  animation: ld-pulse 1.6s var(--ld-ease-in-out) infinite;
}
.ld-pulse--lime { background: var(--ld-lime-400); }
.ld-pulse--lime::after { border-color: var(--ld-lime-400); }
.ld-pulse--teal { background: var(--ld-teal-400); }
.ld-pulse--teal::after { border-color: var(--ld-teal-400); }

@keyframes ld-pulse {
  0%   { transform: scale(1);   opacity: 0.9; }
  70%  { transform: scale(2.2); opacity: 0;   }
  100% { transform: scale(2.2); opacity: 0;   }
}

.ld-bg-grid {
  background-image:
    linear-gradient(var(--ld-slate-2) 1px, transparent 1px),
    linear-gradient(90deg, var(--ld-slate-2) 1px, transparent 1px);
  background-size: 64px 64px;
  background-position: -1px -1px;
}

/* =====================================================================
   Layout
   ===================================================================== */

.section {
  padding: 120px 64px;
  position: relative;
}
.container {
  max-width: var(--ld-page-max);
  margin: 0 auto;
}

/* =====================================================================
   Nav
   ===================================================================== */

.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 64px;
  background: rgba(10,22,40,0.72);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--ld-slate-2);
}
.nav__brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--ld-fg-0);
  border-bottom: none;
}
.nav__brand img { height: 28px; }
.nav__brand span {
  font-family: var(--ld-font-display);
  font-weight: 700;
  font-size: 17px;
  letter-spacing: -0.01em;
}
.nav__links {
  display: flex;
  gap: 32px;
  font-size: 14px;
}
.nav__links a {
  color: var(--ld-fg-1);
  border-bottom: none;
}
.nav__cta {
  display: flex;
  gap: 10px;
  align-items: center;
}
.nav__cta a:not(.ld-btn) {
  color: var(--ld-fg-1);
  font-size: 14px;
  border-bottom: none;
}

/* =====================================================================
   Hero
   ===================================================================== */

.hero {
  position: relative;
  padding: 96px 64px 88px;
  overflow: hidden;
  background: var(--ld-midnight);
}
.hero__video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
  opacity: 0.55;
  filter: saturate(0.85) contrast(1.05);
}
.hero__scrim {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
}
.hero__scrim--dark   { background: linear-gradient(180deg, rgba(10,22,40,0.55) 0%, rgba(10,22,40,0.35) 40%, rgba(10,22,40,0.85) 100%); }
.hero__scrim--teal   { background: radial-gradient(70% 55% at 50% 0%, rgba(20,184,166,0.18), transparent 70%); }
.hero__scrim--vignette { background: radial-gradient(120% 80% at 50% 50%, transparent 40%, rgba(5,13,26,0.65) 100%); }
.hero__scrim--grid   { opacity: 0.25; }

.hero__inner {
  position: relative;
  z-index: 2;
  max-width: 1100px;
  margin: 0 auto;
  text-align: center;
}

.hero__pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--ld-font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ld-teal-300);
  padding: 5px 12px;
  border: 1px solid rgba(94,234,212,0.25);
  border-radius: 999px;
  background: rgba(20,184,166,0.06);
  white-space: nowrap;
}

.hero__title {
  font-family: var(--ld-font-display);
  font-size: 80px;
  font-weight: 700;
  letter-spacing: -0.035em;
  line-height: 1.02;
  color: var(--ld-fg-0);
  margin: 24px 0 22px;
}

.hero__lead {
  font-size: 19px;
  color: var(--ld-fg-1);
  max-width: 720px;
  margin: 0 auto;
  line-height: 1.55;
}

.hero__product {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: center;
  gap: 10px;
  margin: -8px auto 22px;
  max-width: 720px;
}

.hero__product-eyebrow {
  font-family: var(--ld-font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ld-fg-1);
  opacity: 0.7;
}

.hero__product-name {
  font-family: var(--ld-font-display);
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--ld-teal-300);
}

.hero__product-tag {
  font-family: var(--ld-font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--ld-fg-1);
}

.hero__ctas {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin-top: 32px;
}

/* Hero proof strip */
.proof {
  margin-top: 56px;
  max-width: 880px;
  margin-left: auto;
  margin-right: auto;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  border: 1px solid var(--ld-slate-2);
  border-radius: 10px;
  background: rgba(5,13,26,0.55);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  overflow: hidden;
  text-align: left;
}
.proof__lead {
  text-decoration: none;
  color: inherit;
  padding: 20px 22px;
  border-right: 1px solid var(--ld-slate-2);
  background: linear-gradient(180deg, rgba(20,184,166,0.06), transparent);
  display: flex;
  flex-direction: column;
  gap: 4px;
  border-bottom: none;
}
.proof__lead:hover { background: linear-gradient(180deg, rgba(20,184,166,0.12), transparent); }
.proof__label {
  font-family: var(--ld-font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.proof__lead .proof__label { color: var(--ld-teal-300); }
.proof__big {
  font-family: var(--ld-font-display);
  font-size: 32px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--ld-fg-0);
  line-height: 1;
}
.proof__big-unit { font-size: 14px; color: var(--ld-fg-2); font-weight: 500; letter-spacing: 0; }
.proof__sub { font-size: 12px; color: var(--ld-fg-2); line-height: 1.4; }

.proof__stat {
  padding: 20px 18px;
  border-right: 1px solid var(--ld-slate-2);
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.proof__stat:last-child { border-right: none; }
.proof__stat .proof__label { color: var(--ld-fg-3); }
.proof__num {
  font-family: var(--ld-font-display);
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.015em;
  color: var(--ld-fg-0);
  line-height: 1.1;
}
.proof__unit { font-size: 11px; color: var(--ld-fg-2); font-weight: 500; letter-spacing: 0; }

.proof__caveat {
  max-width: 880px;
  margin: 10px auto 0;
  font-family: var(--ld-font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  color: var(--ld-fg-3);
  text-align: left;
}

.connectors {
  max-width: 880px;
  margin: 20px auto 0;
  padding: 16px 22px;
  border: 1px solid var(--ld-slate-2);
  border-radius: 10px;
  background: rgba(5,13,26,0.4);
  text-align: left;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 22px;
  align-items: center;
}
.connectors__label {
  font-family: var(--ld-font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ld-teal-300);
  white-space: nowrap;
}
.connectors__list {
  font-family: var(--ld-font-mono);
  font-size: 12px;
  color: var(--ld-fg-1);
  letter-spacing: 0.04em;
  line-height: 1.6;
}

/* Hero visual SVG card */
.hero-visual {
  position: relative;
  max-width: 980px;
  margin: 56px auto 0;
  border-radius: 12px;
  overflow: hidden;
  background: linear-gradient(180deg, rgba(15,30,51,0.55), rgba(5,13,26,0.92));
  border: 1px solid var(--ld-slate-2);
}
.hero-visual svg { display: block; width: 100%; }

/* =====================================================================
   Problem
   ===================================================================== */

.problem {
  padding: 120px 64px;
  border-top: 1px solid var(--ld-slate-2);
}
.problem__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}
.problem h2,
.platform h2,
.solutions h2,
.technology h2 {
  font-family: var(--ld-font-display);
  font-size: 52px;
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--ld-fg-0);
  margin: 12px 0 24px;
  line-height: 1.05;
}
.problem h2 .muted,
.platform h2 .muted,
.solutions h2 .muted,
.technology h2 .muted {
  color: var(--ld-text-muted);
}
.problem p {
  font-size: 17px;
  color: var(--ld-fg-1);
  line-height: 1.6;
  margin-bottom: 20px;
  max-width: 520px;
}
.problem ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
  max-width: 520px;
}
.problem li {
  display: flex;
  align-items: center;
  gap: 14px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--ld-slate-2);
  color: var(--ld-fg-1);
  font-size: 15px;
}
.problem li .num {
  font-family: var(--ld-font-mono);
  font-size: 11px;
  color: var(--ld-fg-3);
  letter-spacing: 0.08em;
  width: 28px;
}

.callout {
  margin-top: 28px;
  padding: 20px 22px;
  border: 1px solid var(--ld-slate-2);
  border-left: 2px solid var(--ld-amber-400);
  border-radius: 6px;
  background: rgba(245,158,11,0.04);
  max-width: 520px;
}
.callout__label {
  font-family: var(--ld-font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ld-amber-400);
  margin-bottom: 10px;
}
.callout p {
  font-size: 14px;
  color: var(--ld-fg-1);
  line-height: 1.55;
  margin: 0;
  max-width: none;
}

.problem__sticky { position: sticky; top: 96px; }

.problem-viz {
  position: relative;
  background: var(--ld-abyss);
  border: 1px solid var(--ld-slate-2);
  border-radius: 12px;
  height: 100%;
  min-height: 720px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.problem-viz__top {
  padding: 20px 22px 22px;
  border-bottom: 1px solid var(--ld-slate-2);
}
.problem-viz__head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--ld-font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ld-fg-2);
  padding-bottom: 12px;
  margin-bottom: 14px;
  border-bottom: 1px solid var(--ld-slate-2);
}
.problem-viz__head--alert { color: var(--ld-amber-400); display: flex; align-items: center; gap: 8px; }

.tx-table { font-family: var(--ld-font-mono); font-size: 11px; color: var(--ld-fg-1); }
.tx-table__row {
  display: grid;
  grid-template-columns: 70px 1fr 1fr 70px;
  gap: 10px;
  padding: 7px 0;
  align-items: center;
  border-bottom: 1px solid rgba(26,42,64,0.55);
}
.tx-table__row:last-child { border-bottom: none; }
.tx-table__head {
  display: grid;
  grid-template-columns: 70px 1fr 1fr 70px;
  gap: 10px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--ld-slate-2);
  color: var(--ld-fg-3);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 9px;
}
.tx-table__amt { text-align: right; font-variant-numeric: tabular-nums; }
.tx-table__id { color: var(--ld-fg-2); }
.tx-note {
  margin-top: 14px;
  font-family: var(--ld-font-mono);
  font-size: 10px;
  color: var(--ld-fg-2);
  letter-spacing: 0.06em;
  padding: 8px 10px;
  background: rgba(26,42,64,0.4);
  border-radius: 4px;
}
.tx-note--alert {
  margin-top: 8px;
  background: rgba(245,158,11,0.06);
  border: 1px solid rgba(245,158,11,0.25);
}
.tx-note--alert b { color: var(--ld-amber-400); font-weight: 400; }

.problem-viz__bottom {
  padding: 22px 22px 24px;
  flex: 1;
  position: relative;
  background: radial-gradient(80% 60% at 60% 50%, rgba(20,184,166,0.08), transparent 70%);
}
.problem-viz__bottom svg { display: block; width: 100%; }

/* =====================================================================
   Platform
   ===================================================================== */

.platform {
  padding: 120px 64px;
  background: var(--ld-abyss);
  border-top: 1px solid var(--ld-slate-2);
  border-bottom: 1px solid var(--ld-slate-2);
}
.platform__intro { margin-bottom: 64px; max-width: 820px; }
.platform__intro p,
.solutions__intro p,
.technology__intro p {
  font-size: 17px;
  color: var(--ld-fg-1);
  line-height: 1.6;
}

.cap-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 80px;
}
.cap {
  padding: 28px;
}
.cap__head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 24px;
}
.cap__icon {
  width: 44px;
  height: 44px;
  border-radius: 8px;
  background: rgba(20,184,166,0.08);
  border: 1px solid rgba(20,184,166,0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--ld-teal-300);
}
.cap__num {
  font-family: var(--ld-font-mono);
  font-size: 11px;
  color: var(--ld-fg-3);
  letter-spacing: 0.12em;
}
.cap h3,
.sol h3 {
  font-family: var(--ld-font-display);
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--ld-fg-0);
  margin-bottom: 10px;
}
.cap p,
.sol p {
  font-size: 14px;
  color: var(--ld-fg-1);
  line-height: 1.6;
}

.arch {
  background: var(--ld-midnight);
  border: 1px solid var(--ld-slate-2);
  border-radius: 12px;
  padding: 32px;
}
.arch__head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  font-family: var(--ld-font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ld-fg-2);
}
.arch__row {
  border: 1px solid var(--ld-slate-2);
  border-radius: 8px;
  padding: 18px 20px;
  background: var(--ld-bg-raised);
}
.arch__row--accent {
  background: rgba(20,184,166,0.04);
  border-color: rgba(20,184,166,0.35);
}
.arch__row-head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}
.arch__row .eyebrow { color: var(--ld-fg-2); }
.arch__row--accent .eyebrow { color: var(--ld-teal-300); }
.arch__items {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.arch__chip {
  font-family: var(--ld-font-mono);
  font-size: 12px;
  padding: 5px 10px;
  border-radius: 4px;
  background: var(--ld-bg-deep);
  color: var(--ld-fg-1);
  border: 1px solid var(--ld-slate-2);
}
.arch__row--accent .arch__chip {
  background: rgba(20,184,166,0.10);
  color: var(--ld-teal-200);
  border-color: rgba(20,184,166,0.25);
}
.arch__arrow {
  display: flex;
  justify-content: center;
  padding: 8px 0;
  color: var(--ld-fg-3);
}
.arch__foot {
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--ld-slate-2);
  font-family: var(--ld-font-mono);
  font-size: 11px;
  color: var(--ld-fg-2);
  letter-spacing: 0.06em;
  line-height: 1.6;
}

/* =====================================================================
   Solutions
   ===================================================================== */

.solutions { padding: 120px 64px; }
.solutions__intro { margin-bottom: 64px; max-width: 760px; }

.sol-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.sol {
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.sol__head {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.sol__num {
  font-family: var(--ld-font-mono);
  font-size: 11px;
  color: var(--ld-fg-3);
  letter-spacing: 0.12em;
}
.sol__viz {
  border-radius: 6px;
  background: var(--ld-bg-deep);
  border: 1px solid var(--ld-slate-2);
  padding: 18px 16px;
  display: flex;
  justify-content: center;
}
.sol__foot {
  border-top: 1px solid var(--ld-slate-2);
  padding-top: 14px;
  font-family: var(--ld-font-mono);
  font-size: 11px;
  color: var(--ld-fg-2);
  letter-spacing: 0.08em;
  display: flex;
  justify-content: space-between;
}
.sol__foot-arrow { color: var(--ld-teal-300); }

/* =====================================================================
   Technology
   ===================================================================== */

.technology {
  padding: 120px 64px;
  border-top: 1px solid var(--ld-slate-2);
  background: var(--ld-midnight);
}
.technology__intro { margin-bottom: 64px; max-width: 760px; }

.pillars { margin-bottom: 96px; }
.pillar {
  padding: 24px 0;
  border-top: 1px solid var(--ld-slate-2);
  display: grid;
  grid-template-columns: 60px 1fr 1.2fr;
  gap: 24px;
  align-items: baseline;
}
.pillar:last-of-type { border-bottom: 1px solid var(--ld-slate-2); }
.pillar__k {
  font-family: var(--ld-font-mono);
  font-size: 11px;
  color: var(--ld-fg-3);
  letter-spacing: 0.14em;
}
.pillar__label {
  font-family: var(--ld-font-display);
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--ld-fg-0);
}
.pillar__body {
  font-size: 15px;
  color: var(--ld-fg-1);
  line-height: 1.6;
}

.bench-intro { margin-bottom: 28px; }
.bench-intro h3,
.prov h3 {
  font-family: var(--ld-font-display);
  font-size: 28px;
  font-weight: 600;
  letter-spacing: -0.015em;
  color: var(--ld-fg-0);
  margin: 10px 0 8px;
}
.bench-intro p,
.prov p {
  font-size: 15px;
  color: var(--ld-fg-1);
  line-height: 1.6;
  max-width: 720px;
}

.bench-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-bottom: 16px;
}
.bench {
  padding: 22px 22px 20px;
  border: 1px solid var(--ld-slate-2);
  border-radius: 8px;
  background: var(--ld-bg-raised);
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.bench__kind {
  font-family: var(--ld-font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ld-teal-300);
}
.bench__num {
  display: flex;
  align-items: baseline;
  gap: 6px;
}
.bench__val {
  font-family: var(--ld-font-display);
  font-size: 36px;
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--ld-fg-0);
  font-variant-numeric: tabular-nums;
}
.bench__unit {
  font-family: var(--ld-font-mono);
  font-size: 13px;
  color: var(--ld-fg-2);
}
.bench__label { font-size: 13px; color: var(--ld-fg-1); line-height: 1.5; }
.bench__sub {
  font-family: var(--ld-font-mono);
  font-size: 10px;
  color: var(--ld-fg-3);
  letter-spacing: 0.06em;
  padding-top: 8px;
  border-top: 1px solid var(--ld-slate-2);
}

.bench-note {
  margin-bottom: 96px;
  padding: 16px 20px;
  background: var(--ld-bg-raised);
  border: 1px solid var(--ld-slate-2);
  border-radius: 6px;
  font-family: var(--ld-font-mono);
  font-size: 11px;
  color: var(--ld-fg-2);
  letter-spacing: 0.04em;
  line-height: 1.6;
}

/* =====================================================================
   Research
   ===================================================================== */

.research {
  padding: 120px 64px;
  border-top: 1px solid var(--ld-slate-2);
  background: var(--ld-abyss);
}
.research h2 {
  font-family: var(--ld-font-display);
  font-size: 52px;
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--ld-fg-0);
  margin: 12px 0 24px;
  line-height: 1.05;
}
.research__intro {
  margin-bottom: 56px;
  max-width: 760px;
}
.research__intro p {
  font-size: 17px;
  color: var(--ld-fg-1);
  line-height: 1.6;
}

/* ---- Featured cards (2 large) ---- */
.research__featured {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 48px;
}
.research__feat {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 0;
  background: var(--ld-midnight);
  border: 1px solid var(--ld-slate-2);
  border-radius: 16px;
  overflow: hidden;
  transition: border-color var(--ld-dur-fast) var(--ld-ease-out);
}
.research__feat:hover { border-color: var(--ld-slate-3); }
.research__feat-cover {
  background: var(--ld-abyss);
  display: block;
}
.research__feat-cover svg {
  display: block;
  width: 100%;
  height: 100%;
}
.research__feat-body {
  padding: 36px 36px 32px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.research__feat-body h3 {
  font-family: var(--ld-font-display);
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--ld-fg-0);
  line-height: 1.2;
  margin: 0;
}
.research__feat-desc {
  font-size: 14px;
  color: var(--ld-fg-1);
  line-height: 1.55;
}
.research__link {
  margin-top: auto;
  font-family: var(--ld-font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ld-teal-300);
  text-transform: none;
  border-bottom: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  width: fit-content;
}
.research__link:hover { color: var(--ld-teal-200); }

/* ---- List rows ---- */
.research__list {
  border-top: 1px solid var(--ld-slate-2);
  border-bottom: 1px solid var(--ld-slate-2);
}
.research__row {
  display: grid;
  grid-template-columns: 220px 1fr 24px;
  gap: 32px;
  align-items: center;
  padding: 22px 4px;
  border-bottom: 1px solid var(--ld-slate-2);
  text-decoration: none;
  color: inherit;
  border-left: none;
  border-right: none;
  border-top: none;
  transition: background var(--ld-dur-fast) var(--ld-ease-out);
}
.research__row:last-child { border-bottom: none; }
.research__row:hover { background: rgba(20,184,166,0.04); }
.research__row-venue {
  /* eyebrow class already provides color/font/spacing — just stretch its line */
  line-height: 1.4;
}
.research__row-title {
  font-family: var(--ld-font-body);
  font-size: 15px;
  color: var(--ld-fg-0);
  line-height: 1.5;
}
.research__row-arrow {
  font-family: var(--ld-font-mono);
  font-size: 16px;
  color: var(--ld-teal-300);
  text-align: right;
  transition: transform var(--ld-dur-fast) var(--ld-ease-out);
}
.research__row:hover .research__row-arrow {
  transform: translateX(3px);
}

.research__note {
  margin-top: 24px;
  font-family: var(--ld-font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--ld-fg-3);
}

/* =====================================================================
   Contact
   ===================================================================== */

.contact {
  padding: 120px 64px 140px;
  border-top: 1px solid var(--ld-slate-2);
  background: var(--ld-midnight);
}
.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  gap: 80px;
  align-items: start;
}
.contact h2 {
  font-family: var(--ld-font-display);
  font-size: 60px;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--ld-fg-0);
  margin: 12px 0 26px;
  line-height: 1.02;
}
.contact__lead {
  font-size: 17px;
  color: var(--ld-fg-1);
  line-height: 1.6;
  max-width: 460px;
  margin-bottom: 32px;
}
.contact__loc {
  font-family: var(--ld-font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ld-fg-2);
  display: flex;
  align-items: center;
  gap: 10px;
}

.contact__form {
  background: linear-gradient(180deg, rgba(20,184,166,0.04), rgba(5,13,26,0.6));
  border: 1px solid var(--ld-slate-2);
  border-radius: 14px;
  padding: 32px 32px 30px;
  box-shadow: 0 30px 80px -40px rgba(20,184,166,0.18);
}
.field-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin-bottom: 18px;
}
.field { margin-bottom: 18px; }
.field-label {
  display: block;
  font-family: var(--ld-font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ld-fg-2);
  margin-bottom: 8px;
}
.field-input,
.field-textarea {
  width: 100%;
  background: rgba(5,13,26,0.6);
  border: 1px solid var(--ld-slate-2);
  border-radius: 8px;
  padding: 11px 14px;
  color: var(--ld-fg-0);
  font-family: var(--ld-font-body);
  font-size: 14px;
  outline: none;
  box-sizing: border-box;
  transition: border-color 120ms ease;
}
.field-textarea {
  padding: 12px 14px;
  line-height: 1.5;
  resize: vertical;
}
.field-input:focus,
.field-textarea:focus { border-color: var(--ld-teal-400); }

.pills { display: flex; flex-wrap: wrap; gap: 8px; }
.pill {
  font-family: var(--ld-font-body);
  font-size: 13px;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: 999px;
  cursor: pointer;
  transition: all 120ms ease;
  background: transparent;
  border: 1px solid var(--ld-slate-2);
  color: var(--ld-fg-1);
}
.pill:hover { border-color: var(--ld-slate-4); }
.pill.is-active {
  background: var(--ld-teal-500);
  border-color: var(--ld-teal-500);
  color: var(--ld-midnight);
}

.contact__submit { width: 100%; justify-content: center; }
.contact__alert {
  margin-bottom: 18px;
  padding: 12px 14px;
  border-radius: 6px;
  font-size: 13px;
  border: 1px solid;
}
.contact__alert--ok {
  border-color: rgba(52,211,153,0.35);
  background: rgba(52,211,153,0.06);
  color: #34D399;
}
.contact__alert--err {
  border-color: rgba(248,113,113,0.35);
  background: rgba(248,113,113,0.06);
  color: #F87171;
}

/* =====================================================================
   Footer
   ===================================================================== */

.footer {
  padding: 80px 64px 32px;
  background: var(--ld-abyss);
  border-top: 1px solid var(--ld-slate-2);
}
.footer__grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(4, 1fr);
  gap: 48px;
  margin-bottom: 56px;
}
.footer__brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}
.footer__brand img { height: 26px; }
.footer__brand span {
  font-family: var(--ld-font-display);
  font-weight: 700;
  font-size: 16px;
  color: var(--ld-fg-0);
}
.footer__about {
  font-size: 13px;
  color: var(--ld-fg-2);
  line-height: 1.55;
  max-width: 280px;
}
.footer__status {
  margin-top: 18px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--ld-font-mono);
  font-size: 11px;
  color: var(--ld-fg-2);
}
.footer__col h4 {
  font-family: var(--ld-font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ld-fg-2);
  margin-bottom: 14px;
}
.footer__col ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.footer__col a {
  color: var(--ld-fg-1);
  font-size: 13px;
  border-bottom: none;
}
.footer__link--soon {
  color: var(--ld-fg-3);
  font-size: 13px;
  cursor: default;
}
.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 24px;
  border-top: 1px solid var(--ld-slate-2);
  font-family: var(--ld-font-mono);
  font-size: 11px;
  color: var(--ld-fg-3);
}

/* =====================================================================
   Legal modal
   ===================================================================== */

.modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  padding: 32px;
  display: grid;
  place-items: center;
}
.modal[hidden] { display: none; }

.modal__backdrop {
  position: absolute;
  inset: 0;
  border: 0;
  padding: 0;
  cursor: pointer;
  background: rgba(5,13,26,0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.modal__panel {
  position: relative;
  width: 100%;
  max-width: 720px;
  max-height: calc(100vh - 64px);
  background: var(--ld-midnight);
  border: 1px solid var(--ld-slate-2);
  border-radius: 16px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: 0 30px 80px rgba(0,0,0,0.6);
}

.modal__head {
  position: relative;
  padding: 28px 64px 22px 32px;
  border-bottom: 1px solid var(--ld-slate-2);
}
.modal__head .eyebrow { display: block; margin-bottom: 8px; }
.modal__head h2 {
  font-family: var(--ld-font-display);
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--ld-fg-0);
  margin: 0 0 8px;
  line-height: 1.15;
}
.modal__updated {
  font-family: var(--ld-font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--ld-fg-3);
  margin: 0;
}

.modal__close {
  position: absolute;
  top: 22px;
  right: 22px;
  width: 32px;
  height: 32px;
  border: 1px solid var(--ld-slate-2);
  border-radius: 50%;
  background: transparent;
  color: var(--ld-fg-1);
  cursor: pointer;
  display: grid;
  place-items: center;
  font-family: var(--ld-font-body);
  font-size: 20px;
  line-height: 1;
  transition: all 120ms ease;
}
.modal__close:hover {
  border-color: var(--ld-slate-4);
  color: var(--ld-fg-0);
  background: rgba(255,255,255,0.04);
}
.modal__close:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px var(--ld-bg), 0 0 0 4px var(--ld-teal-300);
}

.modal__body {
  padding: 28px 32px 32px;
  overflow-y: auto;
  flex: 1;
}
.modal__body::-webkit-scrollbar { width: 10px; }
.modal__body::-webkit-scrollbar-track { background: transparent; }
.modal__body::-webkit-scrollbar-thumb {
  background: var(--ld-slate-2);
  border-radius: 5px;
}
.modal__body::-webkit-scrollbar-thumb:hover { background: var(--ld-slate-3); }

/* ---- Legal-doc typography ---- */

.legal-doc__lead {
  font-size: 15px;
  color: var(--ld-fg-1);
  line-height: 1.65;
  margin: 0 0 28px;
}
.legal-doc h3 {
  font-family: var(--ld-font-display);
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--ld-fg-0);
  margin: 28px 0 10px;
}
.legal-doc h3:first-of-type,
.legal-doc__lead + h3 { margin-top: 0; }
.legal-doc p,
.legal-doc li {
  font-size: 14px;
  line-height: 1.65;
  color: var(--ld-fg-1);
  margin: 0 0 12px;
}
.legal-doc ul {
  padding-left: 20px;
  margin: 0 0 12px;
}
.legal-doc strong {
  color: var(--ld-fg-0);
  font-weight: 600;
}
.legal-doc__caveat {
  margin-top: 32px;
  padding: 12px 14px;
  border: 1px solid rgba(245,158,11,0.25);
  background: rgba(245,158,11,0.06);
  border-radius: 6px;
  font-family: var(--ld-font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--ld-amber-400);
  line-height: 1.5;
}

/* =====================================================================
   Responsive
   ===================================================================== */

@media (max-width: 1100px) {
  .nav, .hero, .problem, .platform, .solutions, .technology, .contact, .footer { padding-left: 32px; padding-right: 32px; }
  .hero { padding-top: 80px; padding-bottom: 72px; }
  .hero__title { font-size: 64px; }
  .contact h2 { font-size: 48px; }

  .cap-grid { grid-template-columns: repeat(2, 1fr); }
  .sol-grid { grid-template-columns: repeat(2, 1fr); }
  .bench-grid { grid-template-columns: repeat(2, 1fr); }
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .problem__grid { grid-template-columns: 1fr; gap: 56px; }
  .problem__sticky { position: static; }
  .contact__grid { grid-template-columns: 1fr; gap: 56px; }

  .research { padding-left: 32px; padding-right: 32px; }
  .research__featured { grid-template-columns: 1fr; }
  .research__feat { grid-template-columns: 160px 1fr; }
}

@media (max-width: 720px) {
  .nav { padding: 0 20px; height: 56px; }
  .nav__links { display: none; }
  .hero, .problem, .platform, .solutions, .technology, .contact, .footer { padding-left: 20px; padding-right: 20px; }
  .hero__title { font-size: 44px; }
  .hero__lead { font-size: 16px; }
  .problem h2, .platform h2, .solutions h2, .technology h2 { font-size: 36px; }
  .contact h2 { font-size: 36px; }

  .proof { grid-template-columns: 1fr 1fr; }
  .proof__lead { grid-column: 1 / -1; border-right: none; border-bottom: 1px solid var(--ld-slate-2); }
  .proof__stat:nth-child(2) { border-right: 1px solid var(--ld-slate-2); }
  .proof__stat:nth-child(3) { border-right: none; }

  .connectors { grid-template-columns: 1fr; gap: 8px; }

  .cap-grid { grid-template-columns: 1fr; }
  .sol-grid { grid-template-columns: 1fr; }
  .bench-grid { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr; gap: 32px; }
  .field-grid { grid-template-columns: 1fr; }
  .pillar { grid-template-columns: 40px 1fr; gap: 16px; }
  .pillar__body { grid-column: 1 / -1; }

  .problem-viz { min-height: 0; }

  .research { padding-left: 20px; padding-right: 20px; }
  .research h2 { font-size: 36px; }
  .research__feat { grid-template-columns: 1fr; }
  .research__feat-cover { aspect-ratio: 16 / 7; }
  .research__feat-cover svg { width: 100%; height: 100%; }
  .research__feat-body { padding: 24px 22px 22px; }
  .research__feat-body h3 { font-size: 20px; }
  .research__row {
    grid-template-columns: 1fr;
    gap: 8px;
    padding: 18px 4px;
  }
  .research__row-arrow { display: none; }

  .modal { padding: 12px; }
  .modal__panel { max-height: calc(100vh - 24px); border-radius: 12px; }
  .modal__head { padding: 22px 56px 18px 22px; }
  .modal__head h2 { font-size: 22px; }
  .modal__close { top: 18px; right: 18px; }
  .modal__body { padding: 22px 22px 26px; }
}