/* =====================================================
   OBC CORE V1.1 — LIVE DASHBOARD
   Brand palette pulled from oldbainbridgecapital.com
   ===================================================== */

:root {
  --text:        #202020;
  --text-muted:  #5f5f5f;
  --text-soft:   #878787;
  --border:      #e2e2e2;
  --border-soft: #ededed;
  --bg:          #ffffff;
  --bg-soft:     #f8f8f8;
  --bg-panel:    #f4f4f4;
  --navy:        #10296e;
  --blue:        #0b35db;
  --blue-bright: #0a3eff;
  --blue-light:  #6f9dff;

  --container-max: 1180px;
  --gutter: 32px;

  --font: "Switzer", -apple-system, "Segoe UI", Roboto, Inter, sans-serif;

  --radius-sm: 6px;
  --radius:    12px;
  --radius-lg: 20px;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

body {
  font-family: var(--font);
  font-weight: 400;
  color: var(--text);
  background: var(--bg);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: inherit;
  text-decoration: none;
}

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

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

/* =====================================================
   NAV
   ===================================================== */
.nav {
  border-bottom: 1px solid var(--border-soft);
  background: var(--bg);
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: saturate(160%) blur(8px);
  background-color: rgba(255,255,255,0.92);
}
.nav-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 18px var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text);
}
.brand-mark {
  height: 32px;
  width: 32px;
  object-fit: contain;
  display: block;
}
.nav-cta {
  font-size: 14px;
  font-weight: 600;
  padding: 10px 18px;
  border-radius: 999px;
  background: var(--blue);
  color: #fff;
  transition: background 0.15s ease, transform 0.15s ease;
}
.nav-cta:hover {
  background: var(--blue-bright);
  transform: translateY(-1px);
}

/* =====================================================
   HERO
   ===================================================== */
.hero {
  padding: 96px 0 56px;
  background: var(--bg);
  text-align: center;
}
.eyebrow {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--blue);
  padding: 6px 12px;
  border: 1px solid rgba(11,53,219,0.18);
  background: rgba(11,53,219,0.06);
  border-radius: 999px;
  margin-bottom: 24px;
}
h1 {
  font-size: clamp(44px, 6vw, 72px);
  line-height: 1.05;
  letter-spacing: -0.025em;
  font-weight: 700;
  margin: 0 0 24px;
  color: var(--text);
  text-align: center;
}
.h1-sub {
  display: block;
  font-size: 0.5em;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: -0.015em;
  margin-top: 12px;
  line-height: 1.2;
}
.lede {
  font-size: 19px;
  line-height: 1.6;
  color: var(--text-muted);
  max-width: 760px;
  margin: 0 auto 32px;
}
.meta {
  font-size: 14px;
  color: var(--text-soft);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 14px;
}
.meta strong {
  color: var(--text);
  font-weight: 600;
}
.dot {
  width: 4px;
  height: 4px;
  background: var(--text-soft);
  border-radius: 50%;
  display: inline-block;
}

/* "You can build this" pill — orient the visitor before they scroll */
.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-top: 36px;
  padding: 10px 10px 10px 18px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 14px;
  color: var(--text);
  font-weight: 500;
  letter-spacing: -0.005em;
  transition:
    border-color 0.2s ease,
    transform 0.2s cubic-bezier(0.2, 0.8, 0.2, 1),
    box-shadow 0.2s ease;
}
.hero-pill:hover {
  border-color: rgba(11,53,219,0.50);
  transform: translateY(-2px);
  box-shadow: 0 6px 22px rgba(11,53,219,0.10);
}
.hero-pill-arrow {
  width: 6px;
  height: 6px;
  background: var(--blue-bright);
  border-radius: 50%;
  flex-shrink: 0;
  position: relative;
  animation: pulse-dot 2s ease-in-out infinite;
}
.hero-pill-arrow::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: var(--blue-bright);
  opacity: 0.45;
  animation: pulse-ring 2s ease-out infinite;
}
.hero-pill-text {
  color: var(--text);
}
.hero-pill-cta {
  display: inline-flex;
  align-items: center;
  background: var(--blue);
  color: #fff;
  font-weight: 600;
  font-size: 13px;
  padding: 6px 14px;
  border-radius: 999px;
  transition: background 0.15s ease;
}
.hero-pill:hover .hero-pill-cta {
  background: var(--blue-bright);
}

/* =====================================================
   CHART (interactive — TradingView Lightweight Charts)
   ===================================================== */
.chart-section {
  padding: 24px 0 64px;
}
.chart {
  margin: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg);
  box-shadow: 0 1px 2px rgba(16,41,110,0.04), 0 8px 32px rgba(16,41,110,0.06);
}
.chart-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 28px 18px;
  border-bottom: 1px solid var(--border-soft);
  flex-wrap: wrap;
  gap: 16px;
}
.chart-title {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text);
}
.chart-legend {
  display: flex;
  gap: 22px;
}
.legend-item {
  display: inline-flex;
  align-items: center;
  font-size: 13px;
  color: var(--text-muted);
  font-weight: 500;
}
.legend-swatch {
  width: 22px;
  height: 3px;
  border-radius: 2px;
  margin-right: 8px;
  display: inline-block;
}
.swatch-backtest { background: var(--navy); }
.swatch-live     { background: var(--blue-bright); }

.chart-wrap {
  position: relative;
  width: 100%;
  height: 460px;
  background: var(--bg);
}
.chart-canvas {
  position: absolute;
  inset: 0;
}
.chart-wrap img {
  width: 100%;
  height: auto;
  display: block;
}
.chart-fallback {
  padding: 80px 24px;
  text-align: center;
  color: var(--text-muted);
  font-size: 15px;
}

.chart-tooltip {
  position: absolute;
  pointer-events: none;
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 14px;
  font-family: var(--font);
  font-size: 13px;
  line-height: 1.4;
  color: var(--text);
  box-shadow: 0 4px 16px rgba(16,41,110,0.12);
  z-index: 5;
  min-width: 130px;
}
.chart-tooltip[hidden] { display: none; }
.tt-tag {
  display: inline-block;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 2px 8px;
  border-radius: 999px;
  margin-bottom: 6px;
}
.tt-tag-backtest {
  background: rgba(16,41,110,0.10);
  color: var(--navy);
}
.tt-tag-live {
  background: rgba(10,62,255,0.12);
  color: var(--blue-bright);
}
.tt-date {
  font-size: 12px;
  color: var(--text-soft);
  margin-bottom: 2px;
}
.tt-value {
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.01em;
}

.chart figcaption {
  padding: 16px 24px;
  font-size: 13px;
  color: var(--text-muted);
  border-top: 1px solid var(--border-soft);
  background: var(--bg-soft);
}

@media (max-width: 640px) {
  .chart-wrap { height: 360px; }
  .chart-header { padding: 18px 20px 14px; }
  .chart-title { font-size: 15px; }
  .legend-item { font-size: 12px; }
}

/* =====================================================
   METRICS GRID
   ===================================================== */
.metrics-section {
  padding: 32px 0 64px;
}
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg);
}
.metric {
  padding: 28px 24px;
  border-right: 1px solid var(--border-soft);
}
.metric:last-child { border-right: none; }
.metric-label {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-soft);
  margin-bottom: 10px;
}
.metric-value {
  font-size: 30px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
}
.metrics-footnote {
  margin: 18px 0 0;
  font-size: 13px;
  color: var(--text-soft);
}

/* =====================================================
   CALLOUT (LIVE TRACKING)
   ===================================================== */
.callout-section {
  padding: 16px 0 64px;
}
.callout {
  background: var(--navy);
  color: #ffffff;
  padding: 36px 40px;
  border-radius: var(--radius);
  position: relative;
  overflow: hidden;
}
.callout::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 100% 0%, rgba(111,157,255,0.18), transparent 60%);
  pointer-events: none;
}
.callout-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--blue-light);
  padding: 4px 10px;
  border: 1px solid rgba(111,157,255,0.4);
  border-radius: 999px;
  margin-bottom: 16px;
}
.callout p {
  margin: 0;
  font-size: 18px;
  line-height: 1.55;
  color: rgba(255,255,255,0.92);
  max-width: 780px;
}
.callout strong {
  color: #fff;
}

/* =====================================================
   SOFT CTA
   ===================================================== */
.soft-cta-section {
  padding: 28px 0 56px;
}
.soft-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 22px 32px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-left: 3px solid var(--blue);
  border-radius: var(--radius);
  flex-wrap: wrap;
}
.soft-cta p {
  margin: 0;
  font-size: 17px;
  font-weight: 500;
  color: var(--text);
  letter-spacing: -0.01em;
}

/* =====================================================
   COMPOSITION
   ===================================================== */
.composition-section {
  padding: 64px 0;
  background: var(--bg-soft);
  border-top: 1px solid var(--border-soft);
  border-bottom: 1px solid var(--border-soft);
}
h2 {
  font-size: clamp(34px, 4.5vw, 56px);
  line-height: 1.15;
  letter-spacing: -0.025em;
  font-weight: 700;
  margin: 0 0 16px;
  color: var(--text);
  text-align: center;
}
.section-lede {
  font-size: 18px;
  color: var(--text-muted);
  max-width: 720px;
  margin: 0 auto 48px;
  text-align: center;
}
.composition-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.comp-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 28px;
}
.comp-instrument {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
}
.comp-market {
  font-size: 13px;
  color: var(--blue);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin: 4px 0 24px;
}
.comp-stats {
  display: flex;
  gap: 32px;
  border-top: 1px solid var(--border-soft);
  padding-top: 18px;
}
.comp-stats > div {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.comp-stats span {
  font-size: 12px;
  color: var(--text-soft);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.comp-stats strong {
  font-size: 19px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.01em;
}

/* =====================================================
   METHODOLOGY
   ===================================================== */
.method-section {
  padding: 96px 0;
}

/* Claude → NT8 logo strip — emphasizes the AI-to-deployment pipeline */
.stack-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 40px;
  margin: 8px auto 56px;
  padding: 8px 0;
}
.stack-logo {
  height: 72px;
  width: auto;
  object-fit: contain;
  display: block;
  transition: transform 0.25s cubic-bezier(0.2, 0.8, 0.2, 1), filter 0.25s ease;
}
.stack-logo:hover {
  transform: translateY(-2px) scale(1.04);
}
.stack-logo-claude {
  height: 64px;
}
.stack-logo-nt8 {
  height: 96px;
}
.stack-arrow {
  font-size: 36px;
  font-weight: 300;
  color: var(--text-soft);
  letter-spacing: 0;
  line-height: 1;
}

@media (max-width: 640px) {
  .stack-row { gap: 24px; margin-bottom: 40px; }
  .stack-logo-claude { height: 48px; }
  .stack-logo-nt8 { height: 72px; }
  .stack-arrow { font-size: 28px; }
}
.method-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px 32px;
}
.method-list li {
  display: flex;
  gap: 20px;
  padding: 28px 28px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.method-list .num {
  font-size: 14px;
  font-weight: 700;
  color: var(--blue);
  letter-spacing: 0.06em;
  flex-shrink: 0;
}
.method-list strong {
  display: block;
  font-size: 17px;
  color: var(--text);
  margin-bottom: 6px;
  letter-spacing: -0.01em;
}
.method-list p {
  margin: 0;
  font-size: 15px;
  line-height: 1.55;
  color: var(--text-muted);
}

/* =====================================================
   SELECTIVITY
   ===================================================== */
.selectivity-section {
  padding: 80px 0 96px;
  background: var(--navy);
  color: #fff;
  position: relative;
  overflow: hidden;
}
.selectivity-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 80% 20%, rgba(10,62,255,0.24), transparent 55%);
  pointer-events: none;
}
.selectivity {
  text-align: center;
  position: relative;
}
.selectivity-eyebrow {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--blue-light);
  margin-bottom: 32px;
}
.selectivity-stat {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 28px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}
.stat-cell {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
}
.stat-label {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.55);
  text-align: center;
  line-height: 1.3;
  max-width: 14ch;
}
@media (max-width: 720px) {
  .selectivity-stat { gap: 14px; }
  .stat-cell { gap: 10px; }
}
.huge {
  font-size: clamp(72px, 11vw, 150px);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1;
  color: #fff;
}
.huge-mid {
  font-size: clamp(40px, 6vw, 80px);
  color: rgba(255,255,255,0.4);
  position: relative;
  /* Offset down so the arrow sits at the visual middle of the number row */
  margin-top: 0.55em;
}
.huge-blue {
  color: var(--blue-bright);
  text-shadow: 0 0 60px rgba(10,62,255,0.4);
}
.huge-suffix {
  font-size: 0.5em;
  font-weight: 700;
  vertical-align: top;
  color: rgba(255,255,255,0.55);
  margin-left: 0.05em;
  letter-spacing: 0;
}
.selectivity-caption {
  font-size: 15px;
  letter-spacing: 0.08em;
  color: rgba(255,255,255,0.6);
  margin-bottom: 36px;
}
.selectivity-body {
  font-size: 17px;
  line-height: 1.65;
  color: rgba(255,255,255,0.85);
  max-width: 720px;
  margin: 0 auto;
}

/* =====================================================
   CTA
   ===================================================== */
.cta-section {
  padding: 96px 0;
  text-align: center;
}
.scope-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  max-width: 880px;
  margin: 0 auto 48px;
  text-align: left;
}
.scope-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 28px;
}
.scope-card.scope-include {
  border-color: rgba(11,53,219,0.25);
  background: rgba(11,53,219,0.03);
}
.scope-card.scope-exclude {
  background: var(--bg-soft);
}
.scope-tag {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 18px;
}
.scope-include .scope-tag { color: var(--blue); }
.scope-exclude .scope-tag { color: var(--text-soft); }
.scope-card ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.scope-card li {
  position: relative;
  padding-left: 26px;
  font-size: 15px;
  line-height: 1.5;
  color: var(--text);
}
.scope-include li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 7px;
  width: 14px;
  height: 8px;
  border-left: 2px solid var(--blue);
  border-bottom: 2px solid var(--blue);
  transform: rotate(-45deg);
}
.scope-exclude li {
  color: var(--text-muted);
}
.scope-exclude li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 9px;
  width: 12px;
  height: 2px;
  background: var(--text-soft);
  transform: rotate(-45deg);
  box-shadow: 0 0 0 0 var(--text-soft);
}
.scope-exclude li::after {
  content: "";
  position: absolute;
  left: 2px;
  top: 9px;
  width: 12px;
  height: 2px;
  background: var(--text-soft);
  transform: rotate(45deg);
}
.founding-callout {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  padding: 12px 22px;
  background: rgba(11,53,219,0.05);
  border: 1px solid rgba(11,53,219,0.2);
  border-radius: 999px;
  margin: 0 auto 32px;
  flex-wrap: wrap;
  justify-content: center;
}
.founding-tag {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #fff;
  background: var(--blue);
  padding: 4px 10px;
  border-radius: 999px;
}
.founding-text {
  font-size: 14px;
  color: var(--text);
  font-weight: 500;
}
.cta-launch-note {
  font-size: 14px;
  color: var(--text-soft);
  max-width: 540px;
  margin: 0 auto 28px;
  line-height: 1.55;
}
.cta-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 16px 32px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 16px;
  transition: transform 0.15s ease, background 0.15s ease, border-color 0.15s ease;
}
.btn-primary {
  background: var(--blue);
  color: #fff;
}
.btn-primary:hover {
  background: var(--blue-bright);
  transform: translateY(-1px);
}
.btn-sm {
  padding: 12px 22px;
  font-size: 14px;
  flex-shrink: 0;
}
.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-ghost:hover {
  border-color: var(--blue);
  color: var(--blue);
}

/* =====================================================
   DISCLOSURE / FOOTER
   ===================================================== */
.disclosure {
  padding: 48px 0 64px;
  border-top: 1px solid var(--border-soft);
  background: var(--bg-soft);
}
.disclosure p {
  font-size: 13px;
  color: var(--text-soft);
  line-height: 1.6;
  max-width: 880px;
  margin: 0 0 16px;
}
.disclosure .copyright {
  font-size: 13px;
  color: var(--text-soft);
  margin-top: 24px;
  font-weight: 500;
}

/* =====================================================
   ANIMATIONS — pulse, scroll fade-ups, hover lifts
   ===================================================== */

/* Pulsing live indicator dot in the eyebrow */
.eyebrow-live {
  display: inline-flex;
  align-items: center;
}
.pulse-dot {
  position: relative;
  width: 8px;
  height: 8px;
  background: var(--blue);
  border-radius: 50%;
  margin-right: 10px;
  flex-shrink: 0;
  animation: pulse-dot 2s ease-in-out infinite;
}
.pulse-dot::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: var(--blue);
  opacity: 0.5;
  animation: pulse-ring 2s ease-out infinite;
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%      { opacity: 0.85; transform: scale(0.92); }
}
@keyframes pulse-ring {
  0%   { transform: scale(1);   opacity: 0.55; }
  80%  { transform: scale(2.6); opacity: 0;    }
  100% { transform: scale(2.6); opacity: 0;    }
}

/* Hover lifts on cards / interactive surfaces */
.chart {
  transition: box-shadow 0.35s ease;
}
.chart:hover {
  box-shadow: 0 4px 8px rgba(16,41,110,0.05), 0 18px 56px rgba(16,41,110,0.10);
}

.comp-card {
  transition:
    transform 0.25s cubic-bezier(0.2, 0.8, 0.2, 1),
    border-color 0.25s ease,
    box-shadow 0.25s ease;
}
.comp-card:hover {
  transform: translateY(-4px);
  border-color: rgba(11,53,219,0.40);
  box-shadow: 0 12px 36px rgba(16,41,110,0.10);
}

.method-list li {
  transition:
    transform 0.22s cubic-bezier(0.2, 0.8, 0.2, 1),
    border-color 0.22s ease,
    box-shadow 0.22s ease;
}
.method-list li:hover {
  transform: translateY(-3px);
  border-color: rgba(11,53,219,0.30);
  box-shadow: 0 8px 24px rgba(16,41,110,0.08);
}

.scope-card {
  transition: transform 0.22s cubic-bezier(0.2, 0.8, 0.2, 1), box-shadow 0.22s ease;
}
.scope-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(16,41,110,0.06);
}

.metric {
  transition: background 0.25s ease;
}
.metric:hover {
  background: rgba(11,53,219,0.025);
}

/* Scroll fade-up animations (only when motion is OK) */
@media (prefers-reduced-motion: no-preference) {
  .chart,
  .callout,
  .soft-cta,
  .composition-section h2,
  .composition-section .section-lede,
  .method-section h2,
  .method-section .section-lede,
  .selectivity,
  .founding-callout,
  .cta-section h2,
  .cta-section > .container > p,
  .disclosure p {
    opacity: 0;
    transform: translateY(28px);
    transition:
      opacity 0.7s cubic-bezier(0.2, 0.8, 0.2, 1),
      transform 0.7s cubic-bezier(0.2, 0.8, 0.2, 1);
    will-change: opacity, transform;
  }

  .chart.in-view,
  .callout.in-view,
  .soft-cta.in-view,
  .composition-section h2.in-view,
  .composition-section .section-lede.in-view,
  .method-section h2.in-view,
  .method-section .section-lede.in-view,
  .selectivity.in-view,
  .founding-callout.in-view,
  .cta-section h2.in-view,
  .cta-section > .container > p.in-view,
  .disclosure p.in-view {
    opacity: 1;
    transform: translateY(0);
  }

  /* Staggered children inside in-view grids */
  .metrics-grid .metric,
  .composition-grid .comp-card,
  .method-list li,
  .scope-grid .scope-card,
  .cta-buttons .btn {
    opacity: 0;
    transform: translateY(20px);
    transition:
      opacity 0.55s cubic-bezier(0.2, 0.8, 0.2, 1),
      transform 0.55s cubic-bezier(0.2, 0.8, 0.2, 1),
      background 0.25s ease,
      border-color 0.25s ease,
      box-shadow 0.25s ease;
  }

  .metrics-grid.in-view .metric,
  .composition-grid.in-view .comp-card,
  .method-list.in-view li,
  .scope-grid.in-view .scope-card,
  .cta-buttons.in-view .btn {
    opacity: 1;
    transform: translateY(0);
  }

  .metrics-grid .metric:nth-child(1) { transition-delay: 0ms; }
  .metrics-grid .metric:nth-child(2) { transition-delay: 60ms; }
  .metrics-grid .metric:nth-child(3) { transition-delay: 120ms; }
  .metrics-grid .metric:nth-child(4) { transition-delay: 180ms; }
  .metrics-grid .metric:nth-child(5) { transition-delay: 240ms; }
  .metrics-grid .metric:nth-child(6) { transition-delay: 300ms; }

  .composition-grid .comp-card:nth-child(1) { transition-delay: 0ms; }
  .composition-grid .comp-card:nth-child(2) { transition-delay: 90ms; }
  .composition-grid .comp-card:nth-child(3) { transition-delay: 180ms; }

  .method-list li:nth-child(1) { transition-delay: 0ms; }
  .method-list li:nth-child(2) { transition-delay: 70ms; }
  .method-list li:nth-child(3) { transition-delay: 140ms; }
  .method-list li:nth-child(4) { transition-delay: 210ms; }
  .method-list li:nth-child(5) { transition-delay: 280ms; }
  .method-list li:nth-child(6) { transition-delay: 350ms; }

  .scope-grid .scope-card:nth-child(1) { transition-delay: 0ms; }
  .scope-grid .scope-card:nth-child(2) { transition-delay: 100ms; }

  .cta-buttons .btn:nth-child(1) { transition-delay: 0ms; }
  .cta-buttons .btn:nth-child(2) { transition-delay: 80ms; }
}

/* =====================================================
   RESPONSIVE
   ===================================================== */
@media (max-width: 1080px) {
  .metrics-grid { grid-template-columns: repeat(3, 1fr); }
  .metric:nth-child(3n) { border-right: none; }
  .metric { border-bottom: 1px solid var(--border-soft); }
  .metric:nth-last-child(-n+3) { border-bottom: none; }
}
@media (max-width: 820px) {
  .composition-grid { grid-template-columns: 1fr; }
  .method-list { grid-template-columns: 1fr; }
  .scope-grid { grid-template-columns: 1fr; }
  .soft-cta { flex-direction: column; align-items: flex-start; gap: 16px; padding: 20px 22px; }
  .soft-cta p { font-size: 16px; }
}
@media (max-width: 640px) {
  :root { --gutter: 20px; }
  .hero { padding: 64px 0 40px; }
  .nav-cta { font-size: 13px; padding: 8px 14px; }
  .brand span { display: none; }
  .brand-mark { height: 28px; width: 28px; }
  .metrics-grid { grid-template-columns: repeat(2, 1fr); }
  .metric:nth-child(2n) { border-right: none; }
  .metric:nth-child(odd) { border-right: 1px solid var(--border-soft); }
  .metric:nth-last-child(-n+2) { border-bottom: none; }
  .metric:not(:nth-last-child(-n+2)) { border-bottom: 1px solid var(--border-soft); }
  .callout { padding: 28px 24px; }
  .callout p { font-size: 16px; }
  .selectivity-stat { gap: 16px; }
}