:root {
  --bg: #05070d;
  --bg-soft: #080d16;
  --panel: rgba(255, 255, 255, 0.055);
  --panel-strong: rgba(255, 255, 255, 0.09);
  --line: rgba(207, 225, 255, 0.14);
  --line-strong: rgba(137, 190, 255, 0.28);
  --text: #f6f8fb;
  --muted: #9eaabd;
  --muted-strong: #c9d3e3;
  --accent: #55b8ff;
  --accent-strong: #8bd0ff;
  --success: #79e0c2;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.42);
  --radius: 8px;
  --max-width: 1160px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
}

body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 78% 8%, rgba(85, 184, 255, 0.16), transparent 28rem),
    radial-gradient(circle at 10% 18%, rgba(121, 224, 194, 0.08), transparent 24rem),
    linear-gradient(180deg, #05070d 0%, #070910 45%, #05070d 100%);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -2;
  content: "";
  background:
    linear-gradient(115deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px) 0 0 / 72px 72px,
    linear-gradient(rgba(255, 255, 255, 0.028) 1px, transparent 1px) 0 0 / 48px 48px,
    linear-gradient(90deg, rgba(255, 255, 255, 0.022) 1px, transparent 1px) 0 0 / 48px 48px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.92), transparent 86%);
}

body::after {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  content: "";
  background: linear-gradient(180deg, transparent 0%, rgba(5, 7, 13, 0.72) 68%, #05070d 100%);
}

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

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

p {
  color: var(--muted);
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  font: inherit;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 28px;
  align-items: center;
  width: min(100% - 40px, var(--max-width));
  min-height: 76px;
  margin: 0 auto;
  padding: 14px 0;
  background: rgba(5, 7, 13, 0.78);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  gap: 10px;
  align-items: center;
  font-size: 1.05rem;
  font-weight: 760;
  letter-spacing: 0;
}

.brand-mark {
  display: block;
  width: 26px;
  height: 26px;
  border-radius: 6px;
  box-shadow: 0 0 28px rgba(85, 184, 255, 0.28);
}

.site-nav {
  justify-self: center;
  display: flex;
  gap: 26px;
  align-items: center;
  color: var(--muted-strong);
  font-size: 0.94rem;
}

.site-nav a,
.footer-meta a {
  transition:
    color 160ms ease,
    opacity 160ms ease;
}

.site-nav a:hover,
.footer-meta a:hover {
  color: var(--accent-strong);
}

/* Keyboard focus: visible on every interactive element, hidden for mouse users. */
a:focus-visible,
button:focus-visible,
input:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid var(--accent-strong);
  outline-offset: 3px;
  border-radius: 4px;
}

.header-cta,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border-radius: var(--radius);
  font-weight: 720;
  line-height: 1;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    background 180ms ease,
    color 180ms ease,
    box-shadow 180ms ease;
}

.header-cta {
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--line);
}

.header-cta:hover,
.button-secondary:hover {
  transform: translateY(-1px);
  border-color: rgba(139, 208, 255, 0.45);
  background: rgba(139, 208, 255, 0.1);
}

.nav-toggle {
  display: none;
}

.section-shell {
  width: min(100% - 40px, var(--max-width));
  margin: 0 auto;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.04fr) minmax(340px, 0.76fr);
  gap: 40px;
  align-items: center;
  min-height: calc(100svh - 112px);
  padding: 34px 0 40px;
}

.hero-copy {
  max-width: 780px;
}

.eyebrow,
.section-kicker,
.sample-label {
  margin-bottom: 16px;
  color: var(--accent-strong);
  font-size: 0.78rem;
  font-weight: 780;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

h1 {
  max-width: 820px;
  margin-bottom: 24px;
  font-size: 4.35rem;
  line-height: 0.95;
  letter-spacing: 0;
}

.hero-subhead {
  max-width: 680px;
  margin-bottom: 32px;
  color: var(--muted-strong);
  font-size: 1.18rem;
}

.hero-actions,
.offer-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
}

.button-primary {
  color: #04101d;
  background: linear-gradient(135deg, #c4ebff, #55b8ff);
  box-shadow: 0 16px 42px rgba(85, 184, 255, 0.28);
}

.button-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 20px 54px rgba(85, 184, 255, 0.36);
}

.button-secondary {
  color: var(--text);
  background: rgba(255, 255, 255, 0.045);
  border: 1px solid var(--line);
}

.credibility-note {
  position: relative;
  margin: 22px 0 0;
  padding-left: 22px;
  color: var(--muted);
  font-size: 0.95rem;
}

.credibility-note::before {
  position: absolute;
  top: 0.7em;
  left: 0;
  width: 10px;
  height: 10px;
  content: "";
  background: var(--success);
  border-radius: 999px;
  box-shadow: 0 0 20px rgba(121, 224, 194, 0.5);
  transform: translateY(-50%);
}

.hero-visual {
  position: relative;
  overflow: clip;
  contain: layout paint;
  min-height: 360px;
  padding: 20px;
}

.market-grid {
  position: absolute;
  inset: 0;
  border: 1px solid rgba(139, 208, 255, 0.14);
  border-radius: 8px;
  background:
    linear-gradient(105deg, rgba(85, 184, 255, 0.16), transparent 31%),
    repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.04) 0 1px, transparent 1px 46px),
    repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.035) 0 1px, transparent 1px 42px),
    rgba(255, 255, 255, 0.028);
  box-shadow: var(--shadow);
  transform: perspective(900px) rotateY(-6deg) rotateX(2deg);
}

.market-grid::before,
.market-grid::after {
  position: absolute;
  content: "";
  border-radius: 8px;
}

.market-grid::before {
  right: 12%;
  bottom: 15%;
  width: 68%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(139, 208, 255, 0.85), transparent);
  box-shadow:
    -80px -86px 0 rgba(139, 208, 255, 0.16),
    46px -172px 0 rgba(121, 224, 194, 0.12),
    96px -42px 0 rgba(139, 208, 255, 0.18);
}

.market-grid::after {
  top: 20%;
  left: 14%;
  width: 62%;
  height: 52%;
  border: 1px solid rgba(139, 208, 255, 0.12);
  background:
    linear-gradient(140deg, transparent 0 26%, rgba(85, 184, 255, 0.18) 27% 28%, transparent 29% 46%, rgba(121, 224, 194, 0.14) 47% 48%, transparent 49%),
    rgba(0, 0, 0, 0.1);
}

.brief-panel {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  gap: 22px;
  max-width: 390px;
  margin: 32px auto 0;
  padding: 24px;
  background:
    linear-gradient(180deg, rgba(10, 18, 31, 0.88), rgba(6, 10, 18, 0.92)),
    rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(207, 225, 255, 0.15);
  border-radius: 8px;
  box-shadow: 0 28px 90px rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(18px);
}

.panel-topline,
.source-strip,
.sample-card-header {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
}

.panel-topline {
  color: var(--muted);
  font-size: 0.78rem;
  text-transform: uppercase;
}

.ticker-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.ticker-pill {
  padding: 7px 10px;
  color: var(--muted-strong);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(207, 225, 255, 0.11);
  border-radius: 999px;
  font-size: 0.82rem;
}

.signal-chart {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 10px;
  align-items: end;
  height: 130px;
  padding: 18px;
  background:
    linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px) 0 0 / 100% 33%,
    rgba(255, 255, 255, 0.035);
  border: 1px solid rgba(207, 225, 255, 0.1);
  border-radius: 8px;
}

.signal-chart span {
  display: block;
  min-height: 24px;
  background: linear-gradient(180deg, #8bd0ff, #287bb7);
  border-radius: 6px 6px 2px 2px;
  box-shadow: 0 0 18px rgba(85, 184, 255, 0.28);
}

.brief-lines {
  display: grid;
  gap: 9px;
}

.brief-lines span {
  height: 9px;
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.28), rgba(255, 255, 255, 0.05));
  border-radius: 999px;
}

.brief-lines span:nth-child(2) {
  width: 82%;
}

.brief-lines span:nth-child(3) {
  width: 62%;
}

.source-strip {
  padding-top: 12px;
  color: var(--muted);
  border-top: 1px solid rgba(207, 225, 255, 0.12);
  font-size: 0.82rem;
}

.problem,
.solution,
.process,
.sample,
.offer {
  padding: 86px 0;
  scroll-margin-top: 96px;
}

.problem {
  padding-top: 30px;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(300px, 0.8fr);
  gap: 56px;
  align-items: start;
}

h2 {
  margin-bottom: 0;
  font-size: 3.1rem;
  line-height: 1.04;
  letter-spacing: 0;
}

.body-stack p {
  margin-bottom: 18px;
  color: var(--muted-strong);
  font-size: 1.04rem;
}

.body-stack p:last-child {
  margin-bottom: 0;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 34px;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.feature-card,
.step,
.sample-card,
.offer-panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.075), rgba(255, 255, 255, 0.035)),
    rgba(4, 8, 15, 0.7);
  box-shadow: 0 18px 52px rgba(0, 0, 0, 0.18);
}

.feature-card {
  min-height: 252px;
  padding: 26px;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    background 180ms ease;
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: var(--line-strong);
  background:
    linear-gradient(180deg, rgba(85, 184, 255, 0.1), rgba(255, 255, 255, 0.04)),
    rgba(4, 8, 15, 0.74);
}

.card-index {
  display: inline-flex;
  margin-bottom: 62px;
  color: var(--accent-strong);
  font-size: 0.84rem;
  font-weight: 800;
}

h3 {
  margin-bottom: 12px;
  color: var(--text);
  font-size: 1.25rem;
  line-height: 1.2;
}

.feature-card p,
.step p,
.sample-copy p,
.sample-section p,
.offer-panel p,
.site-footer p {
  margin-bottom: 0;
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--line);
}

.step {
  min-height: 285px;
  padding: 28px;
  border: 0;
  border-radius: 0;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.026)),
    #060a12;
}

.step span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  margin-bottom: 64px;
  color: #07131f;
  background: var(--accent-strong);
  border-radius: 999px;
  font-size: 0.95rem;
  font-weight: 800;
}

.sample {
  display: grid;
  grid-template-columns: minmax(0, 0.74fr) minmax(360px, 0.9fr);
  gap: 48px;
  align-items: start;
}

.sample-copy {
  position: sticky;
  top: 120px;
}

.sample-copy p {
  max-width: 500px;
  margin-top: 22px;
  color: var(--muted-strong);
}

.sample-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 28px;
}

.sample-tab {
  min-height: 38px;
  padding: 0 12px;
  color: var(--muted-strong);
  cursor: pointer;
  background: rgba(255, 255, 255, 0.045);
  border: 1px solid var(--line);
  border-radius: 999px;
  transition:
    color 160ms ease,
    border-color 160ms ease,
    background 160ms ease;
}

.sample-tab:hover,
.sample-tab.active {
  color: var(--text);
  background: rgba(85, 184, 255, 0.12);
  border-color: rgba(139, 208, 255, 0.38);
}

.sample-card {
  padding: 28px;
  background:
    linear-gradient(140deg, rgba(85, 184, 255, 0.1), transparent 33%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.085), rgba(255, 255, 255, 0.035)),
    #060a12;
}

.sample-card-header {
  padding-bottom: 22px;
  margin-bottom: 22px;
  border-bottom: 1px solid rgba(207, 225, 255, 0.12);
}

.sample-card-header h3 {
  margin-bottom: 0;
}

.sample-card-header > span {
  flex: 0 0 auto;
  padding: 8px 10px;
  color: var(--accent-strong);
  background: rgba(85, 184, 255, 0.08);
  border: 1px solid rgba(85, 184, 255, 0.22);
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 720;
}

.sample-label {
  margin-bottom: 7px;
}

.sample-meta {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin-bottom: 18px;
}

.sample-meta div {
  display: grid;
  gap: 3px;
  padding: 12px 14px;
  background: rgba(255, 255, 255, 0.045);
  border: 1px solid rgba(207, 225, 255, 0.1);
  border-radius: var(--radius);
}

.sample-meta span {
  color: var(--muted);
  font-size: 0.75rem;
  font-weight: 760;
  text-transform: uppercase;
}

.sample-meta strong {
  color: var(--muted-strong);
  font-size: 0.94rem;
  line-height: 1.45;
}

.sample-disclaimer {
  padding: 12px 14px;
  margin: 0 0 18px;
  color: var(--muted-strong);
  background: rgba(85, 184, 255, 0.075);
  border: 1px solid rgba(85, 184, 255, 0.16);
  border-radius: var(--radius);
  font-size: 0.92rem;
}

.sample-section {
  padding: 18px 0;
  border-bottom: 1px solid rgba(207, 225, 255, 0.1);
}

.sample-section:first-of-type {
  padding-top: 0;
}

.sample-section h4 {
  margin-bottom: 10px;
  color: var(--text);
  font-size: 0.95rem;
}

.metric-list {
  display: grid;
  gap: 8px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.metric-list li {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 10px 0;
  color: var(--muted-strong);
  border-bottom: 1px solid rgba(207, 225, 255, 0.07);
}

.metric-list li:last-child {
  border-bottom: 0;
}

.metric-list strong {
  max-width: 58%;
  color: var(--text);
  font-size: 0.92rem;
  line-height: 1.45;
  text-align: right;
}

.case-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
  border-bottom: 1px solid rgba(207, 225, 255, 0.1);
}

.case-grid .sample-section {
  border-bottom: 0;
}

.content-angle {
  padding-bottom: 0;
  border-bottom: 0;
}

/* Sample brief page (sample.html) */
.sample-card-header h2 {
  margin-bottom: 0;
  font-size: 1.3rem;
  line-height: 1.2;
  letter-spacing: 0;
}

.sample-page-intro {
  padding: 48px 0 12px;
}

.sample-page-intro h1 {
  max-width: 760px;
  font-size: clamp(2.2rem, 6vw, 3.2rem);
  line-height: 1.02;
}

.sample-lead {
  max-width: 720px;
  margin: 0 0 28px;
  color: var(--muted-strong);
  font-size: 1.1rem;
}

.sample-lead strong {
  color: var(--text);
}

.sample-page-body {
  padding: 24px 0 96px;
}

.sample-page-body .sample-card {
  max-width: 820px;
}

/* 404 page (404.html) */
.notfound {
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: calc(100svh - 200px);
  padding: 60px 0;
}

.notfound h1 {
  max-width: 640px;
  font-size: clamp(2.4rem, 7vw, 4rem);
  line-height: 0.98;
}

.notfound-lead {
  max-width: 520px;
  margin: 0 0 30px;
  color: var(--muted-strong);
  font-size: 1.1rem;
}

.offer {
  padding-bottom: 104px;
}

.offer-panel {
  position: relative;
  overflow: hidden;
  contain: layout paint;
  padding: clamp(30px, 6vw, 58px);
}

.offer-panel::after {
  position: absolute;
  right: 0;
  bottom: -120px;
  width: 330px;
  height: 330px;
  content: "";
  background: radial-gradient(circle, rgba(85, 184, 255, 0.18), transparent 62%);
  pointer-events: none;
}

.offer-panel h2,
.offer-panel p,
.offer-list,
.offer-actions {
  position: relative;
  z-index: 1;
}

.offer-panel p {
  max-width: 690px;
  margin: 22px 0 24px;
  color: var(--muted-strong);
}

.offer-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  max-width: 870px;
  padding: 0;
  margin: 0 0 30px;
  list-style: none;
}

.offer-list li {
  position: relative;
  padding: 12px 14px 12px 34px;
  color: var(--muted-strong);
  background: rgba(255, 255, 255, 0.045);
  border: 1px solid rgba(207, 225, 255, 0.1);
  border-radius: var(--radius);
}

.offer-list li::before {
  position: absolute;
  top: 1.1em;
  left: 14px;
  width: 8px;
  height: 8px;
  content: "";
  background: var(--accent-strong);
  border-radius: 999px;
  box-shadow: 0 0 18px rgba(85, 184, 255, 0.34);
}

.email-row {
  display: inline-flex;
  gap: 10px;
  align-items: center;
  min-height: 44px;
}

.email-input {
  min-height: 42px;
  width: 230px;
  padding: 0 13px;
  color: var(--muted-strong);
  background: rgba(255, 255, 255, 0.045);
  border: 1px solid rgba(207, 225, 255, 0.14);
  border-radius: var(--radius);
  font: inherit;
  font-weight: 680;
}

.email-input:focus {
  border-color: rgba(139, 208, 255, 0.5);
  outline: 0;
  box-shadow: 0 0 0 3px rgba(85, 184, 255, 0.12);
}

.copy-button {
  min-height: 34px;
  padding: 0 11px;
  color: var(--accent-strong);
  cursor: pointer;
  background: rgba(85, 184, 255, 0.08);
  border: 1px solid rgba(85, 184, 255, 0.22);
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 760;
  transition:
    color 160ms ease,
    border-color 160ms ease,
    background 160ms ease;
}

.copy-button:hover {
  color: var(--text);
  border-color: rgba(139, 208, 255, 0.44);
  background: rgba(85, 184, 255, 0.14);
}

.copy-button.is-copied {
  color: #062017;
  background: var(--success);
  border-color: var(--success);
}

.sample-fulllink {
  display: inline-flex;
  align-items: center;
  margin-top: 22px;
  color: var(--accent-strong);
  font-size: 0.95rem;
  font-weight: 720;
  border-bottom: 1px solid transparent;
  transition: color 160ms ease, border-color 160ms ease;
}

.sample-fulllink:hover {
  color: var(--text);
  border-bottom-color: var(--line-strong);
}

.request-template {
  margin: 0 0 28px;
}

.request-template h3 {
  margin-bottom: 12px;
  font-size: 1.05rem;
}

.request-list {
  display: grid;
  gap: 10px;
  max-width: 870px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.request-list li {
  padding: 12px 14px;
  color: var(--muted-strong);
  background: rgba(255, 255, 255, 0.045);
  border: 1px solid rgba(207, 225, 255, 0.1);
  border-radius: var(--radius);
  font-size: 0.96rem;
}

.request-list span {
  display: block;
  margin-bottom: 2px;
  color: var(--text);
  font-weight: 720;
}

.contact-status {
  max-width: 520px;
  margin-top: 16px !important;
  color: var(--muted);
  font-size: 0.92rem;
}

.offer-disclaimer {
  position: relative;
  z-index: 1;
  max-width: 690px;
  margin: 18px 0 0;
  padding-top: 16px;
  color: var(--muted);
  border-top: 1px solid var(--line);
  font-size: 0.86rem;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 28px;
  width: min(100% - 40px, var(--max-width));
  padding: 34px 0 46px;
  margin: 0 auto;
  color: var(--muted);
  border-top: 1px solid var(--line);
}

.footer-brand {
  margin-bottom: 12px;
}

.footer-meta {
  display: grid;
  gap: 10px;
  align-content: start;
  justify-items: end;
  text-align: right;
}

.footer-meta a {
  color: var(--muted-strong);
}

/* ====================================================================== *
 * NVIDIA sample brief page (sample-nvidia-q1-fy2027.html)
 * ====================================================================== */

/* Scroll progress indicator */
.read-progress {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 30;
  width: 100%;
  height: 3px;
  background: transparent;
  pointer-events: none;
}

.read-progress span {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, #55b8ff, #8bd0ff);
  box-shadow: 0 0 14px rgba(85, 184, 255, 0.5);
  transition: width 80ms linear;
}

.brief-hero {
  padding: 48px 0 8px;
}

.brief-hero h1 {
  max-width: 880px;
  font-size: clamp(2.3rem, 6vw, 3.4rem);
  line-height: 1.02;
}

.brief-lead {
  max-width: 760px;
  margin: 0 0 26px;
  color: var(--muted-strong);
  font-size: 1.1rem;
}

.brief-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  max-width: 760px;
  margin: 0 0 28px;
}

.brief-facts div {
  padding: 12px 14px;
  background: rgba(255, 255, 255, 0.045);
  border: 1px solid rgba(207, 225, 255, 0.1);
  border-radius: var(--radius);
}

.brief-facts dt {
  margin-bottom: 3px;
  color: var(--muted);
  font-size: 0.74rem;
  font-weight: 760;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.brief-facts dd {
  margin: 0;
  color: var(--muted-strong);
  font-size: 0.95rem;
}

/* Two-column layout with sticky TOC on desktop */
.brief-layout {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 48px;
  align-items: start;
  padding-bottom: 96px;
}

.brief-toc {
  position: sticky;
  top: 104px;
  align-self: start;
}

.toc-title {
  margin: 0 0 12px;
  color: var(--muted);
  font-size: 0.74rem;
  font-weight: 780;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.brief-toc nav {
  display: grid;
  gap: 2px;
  padding-left: 12px;
  border-left: 1px solid var(--line);
}

.brief-toc nav a {
  padding: 6px 0 6px 14px;
  margin-left: -13px;
  color: var(--muted);
  font-size: 0.9rem;
  border-left: 2px solid transparent;
  transition:
    color 160ms ease,
    border-color 160ms ease;
}

.brief-toc nav a:hover {
  color: var(--muted-strong);
}

.brief-toc nav a.is-active {
  color: var(--accent-strong);
  border-left-color: var(--accent-strong);
  font-weight: 680;
}

.brief-main {
  min-width: 0;
}

.brief-block {
  padding: 30px 0;
  border-bottom: 1px solid var(--line);
  scroll-margin-top: 96px;
}

.brief-block:first-child {
  padding-top: 0;
}

.brief-block:last-child {
  border-bottom: 0;
}

.brief-block h2 {
  margin-bottom: 14px;
  font-size: 2rem;
  line-height: 1.08;
}

.brief-block-lead {
  max-width: 680px;
  margin: 0 0 22px;
  color: var(--muted-strong);
}

.block-head-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 4px;
}

.block-head-row h2 {
  margin-bottom: 0;
}

/* KPI cards */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.kpi-card {
  padding: 20px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.075), rgba(255, 255, 255, 0.03)),
    rgba(4, 8, 15, 0.7);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    background 180ms ease;
}

.kpi-card:hover {
  transform: translateY(-3px);
  border-color: var(--line-strong);
  background:
    linear-gradient(180deg, rgba(85, 184, 255, 0.1), rgba(255, 255, 255, 0.035)),
    rgba(4, 8, 15, 0.74);
}

.kpi-card-wide {
  grid-column: 1 / -1;
  background:
    linear-gradient(135deg, rgba(85, 184, 255, 0.12), transparent 46%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.075), rgba(255, 255, 255, 0.03)),
    rgba(4, 8, 15, 0.7);
}

.kpi-label {
  margin: 0 0 10px;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 760;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.kpi-value {
  margin: 0 0 8px;
  color: var(--text);
  font-size: 2.1rem;
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.01em;
}

.kpi-pm {
  color: var(--muted);
  font-size: 1rem;
  font-weight: 600;
}

.kpi-sub {
  margin: 0;
  color: var(--muted-strong);
  font-size: 0.88rem;
}

/* Hook */
.brief-hook {
  margin: 0 0 18px;
  padding: 18px 22px;
  color: var(--text);
  background: rgba(85, 184, 255, 0.075);
  border-left: 3px solid var(--accent-strong);
  border-radius: 0 var(--radius) var(--radius) 0;
  font-size: 1.12rem;
  line-height: 1.5;
}

/* Bull / bear lens */
.lens-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-bottom: 14px;
}

.lens-card {
  padding: 20px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition:
    transform 180ms ease,
    border-color 180ms ease;
}

.lens-card:hover {
  transform: translateY(-3px);
  border-color: var(--line-strong);
}

.lens-card h3 {
  margin-bottom: 10px;
  font-size: 1.05rem;
}

.lens-bull {
  border-top: 2px solid var(--success);
}

.lens-bear {
  border-top: 2px solid #f0a48b;
}

.watch-card {
  padding: 20px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.watch-card h3 {
  margin-bottom: 12px;
  font-size: 1.05rem;
}

.watch-list {
  display: grid;
  gap: 8px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.watch-list li {
  position: relative;
  padding-left: 22px;
  color: var(--muted-strong);
}

.watch-list li::before {
  position: absolute;
  top: 0.66em;
  left: 2px;
  width: 7px;
  height: 7px;
  content: "";
  background: var(--accent-strong);
  border-radius: 999px;
  box-shadow: 0 0 14px rgba(85, 184, 255, 0.34);
}

/* X thread */
.copy-thread-button {
  min-height: 40px;
  padding: 0 16px;
  color: var(--accent-strong);
  cursor: pointer;
  background: rgba(85, 184, 255, 0.08);
  border: 1px solid rgba(85, 184, 255, 0.28);
  border-radius: 999px;
  font-size: 0.88rem;
  font-weight: 760;
  transition:
    color 160ms ease,
    border-color 160ms ease,
    background 160ms ease;
}

.copy-thread-button:hover {
  color: var(--text);
  border-color: rgba(139, 208, 255, 0.5);
  background: rgba(85, 184, 255, 0.16);
}

.copy-thread-button.is-copied {
  color: #062017;
  background: var(--success);
  border-color: var(--success);
}

.thread {
  display: grid;
  gap: 12px;
  padding: 0;
  margin: 0 0 12px;
  list-style: none;
  counter-reset: tweet;
}

.tweet {
  padding: 16px 18px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: border-color 180ms ease, background 180ms ease;
}

.tweet:hover {
  border-color: var(--line-strong);
  background: rgba(255, 255, 255, 0.055);
}

.tweet p {
  margin: 0;
  color: var(--muted-strong);
  line-height: 1.5;
}

.copy-thread-status {
  min-height: 1.2em;
  margin: 0;
  color: var(--success);
  font-size: 0.88rem;
}

/* Newsletter */
.newsletter-card {
  padding: 24px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.025)),
    rgba(4, 8, 15, 0.7);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.newsletter-card h3 {
  margin-bottom: 14px;
  font-size: 1.2rem;
}

.newsletter-card p {
  margin: 0 0 14px;
  color: var(--muted-strong);
}

.newsletter-card p:last-child {
  margin-bottom: 0;
}

/* Collapsible sections (native <details>) */
.collapsible {
  background: rgba(255, 255, 255, 0.035);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.collapsible + .collapsible {
  margin-top: 12px;
}

.collapsible summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
  color: var(--text);
  font-weight: 700;
  transition: background 160ms ease;
}

.collapsible summary::-webkit-details-marker {
  display: none;
}

.collapsible summary:hover {
  background: rgba(255, 255, 255, 0.03);
  border-radius: var(--radius);
}

.summary-icon {
  position: relative;
  flex: 0 0 auto;
  width: 14px;
  height: 14px;
}

.summary-icon::before,
.summary-icon::after {
  position: absolute;
  top: 50%;
  left: 50%;
  content: "";
  background: var(--accent-strong);
  border-radius: 2px;
  transform: translate(-50%, -50%);
  transition: transform 180ms ease, opacity 180ms ease;
}

.summary-icon::before {
  width: 14px;
  height: 2px;
}

.summary-icon::after {
  width: 2px;
  height: 14px;
}

.collapsible[open] .summary-icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
  opacity: 0;
}

.collapsible-body {
  padding: 0 18px 18px;
}

.talking-points {
  display: grid;
  gap: 12px;
  padding: 0;
  margin: 8px 0 0;
  list-style: none;
}

.talking-points li {
  padding: 12px 14px;
  color: var(--muted-strong);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(207, 225, 255, 0.08);
  border-radius: var(--radius);
  line-height: 1.5;
}

.talking-points strong {
  color: var(--text);
}

.source-list {
  display: grid;
  gap: 10px;
  padding: 0;
  margin: 8px 0 0;
  counter-reset: src;
  list-style: none;
}

.source-list li {
  display: grid;
  gap: 4px;
  padding: 12px 14px 12px 40px;
  position: relative;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(207, 225, 255, 0.08);
  border-radius: var(--radius);
}

.source-list li::before {
  counter-increment: src;
  content: counter(src);
  position: absolute;
  top: 12px;
  left: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  color: var(--accent-strong);
  background: rgba(85, 184, 255, 0.1);
  border: 1px solid rgba(85, 184, 255, 0.22);
  border-radius: 999px;
  font-size: 0.74rem;
  font-weight: 800;
}

.source-claim {
  color: var(--text);
  font-weight: 700;
  font-size: 0.94rem;
}

.source-ref {
  color: var(--muted);
  font-size: 0.86rem;
  word-break: break-word;
}

/* Disclaimer + closing CTA */
.brief-disclaimer-block {
  display: grid;
  gap: 22px;
}

.brief-disclaimer {
  margin: 0;
  padding: 16px 18px;
  color: var(--muted-strong);
  background: rgba(85, 184, 255, 0.06);
  border: 1px solid rgba(85, 184, 255, 0.16);
  border-radius: var(--radius);
  font-size: 0.9rem;
}

.brief-cta {
  padding: 28px;
  text-align: center;
  background:
    linear-gradient(135deg, rgba(85, 184, 255, 0.12), transparent 60%),
    rgba(4, 8, 15, 0.7);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.brief-cta h3 {
  margin-bottom: 8px;
  font-size: 1.3rem;
}

.brief-cta p {
  margin: 0 0 18px;
  color: var(--muted-strong);
}

/* Summary callout */
.summary-card {
  padding: 22px 24px;
  background:
    linear-gradient(135deg, rgba(85, 184, 255, 0.1), transparent 52%),
    rgba(4, 8, 15, 0.7);
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent-strong);
  border-radius: var(--radius);
}

.summary-card p {
  margin: 0;
  color: var(--muted-strong);
  font-size: 1.04rem;
  line-height: 1.65;
}

.summary-card strong {
  color: var(--text);
}

/* Reusable info block (number detail, what-changed) */
.num-detail-stack,
.changed-stack {
  display: grid;
  gap: 12px;
  margin-top: 22px;
}

.info-block {
  padding: 18px 20px;
  background: rgba(255, 255, 255, 0.035);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: border-color 180ms ease, background 180ms ease;
}

.info-block:hover {
  border-color: var(--line-strong);
  background: rgba(255, 255, 255, 0.05);
}

.info-block h3 {
  margin-bottom: 8px;
  font-size: 1.05rem;
}

.info-block p {
  margin: 0 0 8px;
  color: var(--muted-strong);
}

.info-block p:last-child {
  margin-bottom: 0;
}

.source-cite {
  color: var(--muted) !important;
  font-size: 0.82rem;
}

/* Creator hooks */
.hook-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.hook-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 20px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.025)),
    rgba(4, 8, 15, 0.7);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: transform 180ms ease, border-color 180ms ease;
}

.hook-card:hover {
  transform: translateY(-3px);
  border-color: var(--line-strong);
}

.hook-tag {
  color: var(--accent-strong);
  font-size: 0.76rem;
  font-weight: 780;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.hook-card p {
  margin: 0;
  color: var(--muted-strong);
  font-size: 0.98rem;
  line-height: 1.55;
}

/* Bull / bear bullet lists */
.lens-list {
  display: grid;
  gap: 12px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.lens-list li {
  position: relative;
  padding-left: 18px;
  color: var(--muted-strong);
  font-size: 0.95rem;
  line-height: 1.5;
}

.lens-list li::before {
  position: absolute;
  top: 0.62em;
  left: 0;
  width: 6px;
  height: 6px;
  content: "";
  background: var(--muted);
  border-radius: 999px;
}

.lens-bull .lens-list li::before {
  background: var(--success);
}

.lens-bear .lens-list li::before {
  background: #f0a48b;
}

.lens-list strong {
  color: var(--text);
}

/* What everyone might miss */
.miss-card {
  margin-top: 14px;
  padding: 24px;
  background:
    linear-gradient(135deg, rgba(121, 224, 194, 0.1), transparent 55%),
    rgba(4, 8, 15, 0.7);
  border: 1px solid rgba(121, 224, 194, 0.24);
  border-radius: var(--radius);
}

.miss-tag {
  margin: 0 0 8px;
  color: var(--success);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.miss-card h3 {
  margin-bottom: 12px;
  font-size: 1.2rem;
}

.miss-card p {
  margin: 0 0 12px;
  color: var(--muted-strong);
}

.miss-card p:last-child {
  margin-bottom: 0;
}

/* Multi-line tweets: preserve intentional line breaks */
.tweet p {
  white-space: pre-line;
}

/* Newsletter sub-headings */
.newsletter-card h4 {
  margin: 18px 0 8px;
  color: var(--text);
  font-size: 1rem;
}

.source-ref a {
  color: var(--accent-strong);
  border-bottom: 1px solid transparent;
  transition: border-color 160ms ease;
}

.source-ref a:hover {
  border-bottom-color: var(--line-strong);
}

@media (max-width: 960px) {
  .site-header {
    grid-template-columns: auto auto;
  }

  .nav-toggle {
    justify-self: end;
    display: inline-flex;
    flex-direction: column;
    gap: 5px;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    color: var(--text);
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--line);
    border-radius: var(--radius);
  }

  .nav-toggle span:not(.sr-only) {
    width: 18px;
    height: 2px;
    background: currentColor;
    border-radius: 999px;
    transition:
      transform 160ms ease,
      opacity 160ms ease;
  }

  .site-header.nav-open .nav-toggle span:nth-child(2) {
    transform: translateY(3.5px) rotate(45deg);
  }

  .site-header.nav-open .nav-toggle span:nth-child(3) {
    transform: translateY(-3.5px) rotate(-45deg);
  }

  .site-nav,
  .header-cta {
    display: none;
  }

  .site-header.nav-open .site-nav {
    position: absolute;
    top: 76px;
    left: 0;
    display: grid;
    width: 100%;
    padding: 16px;
    background: rgba(5, 7, 13, 0.96);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
  }

  .site-header.nav-open .site-nav a {
    padding: 12px;
  }

  .hero,
  .split,
  .sample {
    grid-template-columns: 1fr;
  }

  .hero {
    gap: 34px;
    min-height: auto;
    padding-top: 42px;
  }

  .hero-visual {
    min-height: 360px;
  }

  .card-grid,
  .steps {
    grid-template-columns: 1fr;
  }

  .feature-card,
  .step {
    min-height: auto;
  }

  .offer-list {
    grid-template-columns: 1fr;
  }

  .card-index,
  .step span {
    margin-bottom: 34px;
  }

  .sample-copy {
    position: static;
  }

  /* Brief page: collapse the sticky TOC into a horizontal scroller on top */
  .brief-layout {
    grid-template-columns: 1fr;
    gap: 26px;
  }

  .brief-toc {
    position: static;
    top: auto;
  }

  .brief-toc nav {
    display: flex;
    flex-wrap: nowrap;
    gap: 6px;
    overflow-x: auto;
    padding-left: 0;
    border-left: 0;
    -webkit-overflow-scrolling: touch;
  }

  .brief-toc nav a {
    flex: 0 0 auto;
    margin-left: 0;
    padding: 8px 12px;
    color: var(--muted-strong);
    white-space: nowrap;
    background: rgba(255, 255, 255, 0.045);
    border: 1px solid var(--line);
    border-left: 1px solid var(--line);
    border-radius: 999px;
  }

  .brief-toc nav a.is-active {
    border-left-color: rgba(139, 208, 255, 0.38);
    border-color: rgba(139, 208, 255, 0.38);
    background: rgba(85, 184, 255, 0.12);
  }
}

@media (max-width: 640px) {
  .site-header,
  .section-shell,
  .site-footer {
    width: min(100% - 28px, var(--max-width));
  }

  h1 {
    margin-bottom: 18px;
    font-size: 2.55rem;
    line-height: 0.98;
  }

  h2 {
    font-size: 2.05rem;
  }

  .hero {
    gap: 22px;
    padding: 24px 0 32px;
  }

  .hero-subhead {
    margin-bottom: 22px;
    font-size: 1rem;
  }

  .hero-actions,
  .offer-actions {
    align-items: stretch;
  }

  .button,
  .email-row {
    width: 100%;
  }

  .button {
    min-height: 46px;
  }

  .email-row {
    display: grid;
    gap: 10px;
  }

  .email-input {
    width: 100%;
  }

  .hero-visual {
    display: none;
  }

  .market-grid {
    transform: none;
  }

  .brief-panel {
    max-width: none;
    gap: 12px;
    margin-top: 12px;
    padding: 14px;
  }

  .signal-chart {
    height: 74px;
    padding: 10px;
  }

  .ticker-pill {
    padding: 5px 8px;
    font-size: 0.74rem;
  }

  .panel-topline,
  .source-strip {
    font-size: 0.68rem;
  }

  .credibility-note {
    margin-top: 14px;
  }

  .problem,
  .solution,
  .process,
  .sample,
  .offer {
    padding: 58px 0;
  }

  .feature-card,
  .step,
  .sample-card {
    padding: 22px;
  }

  .sample-card-header,
  .case-grid,
  .metric-list li,
  .site-footer {
    display: grid;
  }

  .sample-card-header > span,
  .metric-list strong,
  .footer-meta {
    justify-self: start;
    text-align: left;
  }

  .metric-list strong {
    max-width: none;
  }

  .case-grid {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .site-footer {
    gap: 22px;
  }

  .footer-meta {
    justify-items: start;
  }

  /* Brief page: single-column cards and tighter spacing */
  .brief-facts,
  .kpi-grid,
  .lens-grid,
  .hook-grid {
    grid-template-columns: 1fr;
  }

  .kpi-value {
    font-size: 1.8rem;
  }

  .brief-block h2 {
    font-size: 1.65rem;
  }

  .block-head-row {
    align-items: stretch;
  }

  .copy-thread-button {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}