:root {
  --bg: #07111f;
  --surface: #0d1728;
  --raised: #111e33;
  --soft: #15243b;
  --border: #24324a;
  --border-strong: #334766;
  --text: #ecf2ff;
  --text-secondary: #9aabc7;
  --text-muted: #71829e;
  --accent: #29d3c0;
  --accent-strong: #61f0df;
  --accent-deep: #1aae9d;
  --accent-ink: #05211e;
  --success: #32c48d;
  --warning: #e8b14c;
  --danger: #e06d6d;
  --shadow: 0 16px 40px rgba(2, 6, 12, 0.22);
  --radius-xs: 8px;
  --radius-sm: 12px;
  --radius-md: 16px;
  --radius-lg: 20px;
  --radius-xl: 24px;
  --max: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at 15% -10%, rgba(41, 211, 192, 0.08), transparent 32%),
    linear-gradient(180deg, #07111f 0%, #081321 42%, #050b14 100%);
  color: var(--text);
  line-height: 1.6;
}

a {
  color: inherit;
}

p {
  margin: 0;
  color: var(--text-secondary);
}

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

.container {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 18px;
}

.nav {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(7, 17, 31, 0.9);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 72px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 11px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: var(--accent-ink);
  font-weight: 900;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.94rem;
  font-weight: 650;
}

.nav-links a:hover,
.nav-links a:focus-visible {
  color: var(--text);
}

.hero {
  padding: 56px 0 34px;
}

.hero-grid,
.split,
.topline,
.cards,
.definition-grid,
.demo-shell,
.demo-grid,
.flow-grid,
.inputs-grid,
.systems-grid,
.faq-grid,
.next-step-grid,
.story-grid,
.trust-grid,
.metrics-grid {
  display: grid;
  gap: 18px;
}

.grid {
  display: grid;
  gap: 18px;
}

.section {
  padding: 52px 0;
}

.section-tight {
  padding-top: 28px;
}

.card,
.panel,
.metric-card,
.panel-muted,
.demo-panel,
.channel-card,
.step-card,
.faq-card,
.system-card,
.inline-stat,
.selector-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: rgba(17, 30, 51, 0.92);
  box-shadow: var(--shadow);
}

.card,
.panel,
.metric-card,
.demo-panel,
.channel-card,
.step-card,
.faq-card,
.system-card,
.selector-card {
  padding: 22px;
}

.panel {
  background: linear-gradient(180deg, rgba(21, 36, 59, 0.96), rgba(13, 23, 40, 0.98));
}

.panel-muted {
  padding: 18px;
  border-radius: var(--radius-md);
  background: rgba(13, 23, 40, 0.82);
}

.eyebrow {
  display: inline-flex;
  width: fit-content;
  align-items: center;
  gap: 8px;
  border: 1px solid rgba(41, 211, 192, 0.24);
  border-radius: 999px;
  background: rgba(41, 211, 192, 0.08);
  color: var(--accent-strong);
  padding: 8px 11px;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

h1,
h2,
h3,
h4 {
  margin: 0;
  color: var(--text);
  line-height: 1.08;
  letter-spacing: -0.025em;
}

h1 {
  font-size: clamp(2.35rem, 9vw, 4.8rem);
  max-width: 15ch;
}

h2 {
  font-size: clamp(1.65rem, 5vw, 2.5rem);
}

h3 {
  font-size: 1.14rem;
}

h4 {
  font-size: 1rem;
}

.lede {
  max-width: 63ch;
  font-size: 1.05rem;
}

.support-line,
.muted,
.note,
.helper,
.status-note {
  color: var(--text-muted);
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.button,
button.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 13px 17px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  background: var(--accent);
  color: var(--accent-ink);
  text-decoration: none;
  font-weight: 800;
  cursor: pointer;
  transition: background-color 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.button:hover,
.button:focus-visible,
button.button:hover,
button.button:focus-visible {
  background: var(--accent-strong);
}

.button.secondary,
button.button.secondary {
  background: rgba(13, 23, 40, 0.94);
  color: var(--text);
  border-color: var(--border-strong);
}

.button.secondary:hover,
.button.secondary:focus-visible,
button.button.secondary:hover,
button.button.secondary:focus-visible {
  background: rgba(17, 30, 51, 1);
}

.button.ghost {
  background: transparent;
  border-color: var(--border-strong);
  color: var(--text);
}

.button.full {
  width: 100%;
}

.chips,
.input-chips,
.output-chips,
.status-row,
.tag-row,
.demo-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chip,
.status-pill,
.output-chip,
.input-chip,
.tag,
.channel-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border-radius: 999px;
  padding: 8px 11px;
  font-size: 0.87rem;
  border: 1px solid var(--border);
  background: rgba(13, 23, 40, 0.82);
  color: var(--text-secondary);
}

.status-pill.active,
.channel-status.active,
.selector-card.active .channel-status {
  background: rgba(41, 211, 192, 0.14);
  color: var(--accent-strong);
  border-color: rgba(41, 211, 192, 0.34);
}

.channel-status.soon {
  color: var(--warning);
  border-color: rgba(232, 177, 76, 0.24);
  background: rgba(232, 177, 76, 0.08);
}

.selector-card.active {
  border-color: rgba(41, 211, 192, 0.44);
  background: rgba(17, 30, 51, 1);
}

.selector-card button {
  all: unset;
  display: grid;
  gap: 12px;
  cursor: pointer;
}

.selector-card h3,
.selector-card p {
  margin: 0;
}

.list,
.bullet-list,
.detail-list,
.result-list,
.faq-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.list li,
.bullet-list li,
.result-list li,
.faq-list li {
  position: relative;
  padding-left: 18px;
  color: var(--text-secondary);
}

.list li::before,
.bullet-list li::before,
.result-list li::before,
.faq-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.68em;
  width: 7px;
  height: 7px;
  border-radius: 99px;
  background: var(--accent);
}

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

.steps li,
.step-card {
  position: relative;
}

.steps li {
  counter-increment: step;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: rgba(13, 23, 40, 0.72);
  padding: 15px 15px 15px 48px;
  color: var(--text-secondary);
}

.steps li::before {
  content: counter(step);
  position: absolute;
  left: 15px;
  top: 15px;
  width: 24px;
  height: 24px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  background: var(--accent);
  color: var(--accent-ink);
  font-weight: 900;
}

.inline-stat {
  padding: 18px;
}

.inline-stat strong,
.metric-card strong {
  display: block;
  color: var(--accent-strong);
  font-size: 1.4rem;
  margin-bottom: 6px;
}

form {
  display: grid;
  gap: 14px;
}

.field {
  display: grid;
  gap: 7px;
}

label,
.label {
  color: var(--text);
  font-size: 0.94rem;
  font-weight: 760;
}

input,
select,
textarea {
  width: 100%;
  min-height: 48px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: #0b1322;
  color: var(--text);
  font: inherit;
  padding: 13px 14px;
}

textarea {
  min-height: 104px;
  resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
  outline: 2px solid rgba(41, 211, 192, 0.35);
  border-color: var(--accent);
}

.progress {
  height: 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface);
  overflow: hidden;
}

.progress span {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent-strong));
  transition: width 0.25s ease;
}

.step,
.result {
  display: none;
}

.step.active,
.result.show {
  display: grid;
  gap: 16px;
}

.option {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  cursor: pointer;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: rgba(13, 23, 40, 0.72);
  padding: 14px;
  color: var(--text-secondary);
}

.option input {
  width: auto;
  min-height: auto;
  margin-top: 5px;
}

.hero-proof {
  display: grid;
  gap: 16px;
}

.hero-proof-grid {
  display: grid;
  gap: 12px;
}

.proof-note {
  font-size: 0.95rem;
  color: var(--text-muted);
}

.pain-grid,
.six-step-grid,
.systems-grid,
.faq-grid,
.flow-grid,
.inputs-grid,
.selector-grid,
.output-grid {
  display: grid;
  gap: 14px;
}

.pain-card p,
.step-card p,
.system-card p,
.faq-card p,
.demo-panel p,
.selector-card p,
.metric-card p {
  color: var(--text-secondary);
}

.lead-brain-layout {
  display: grid;
  gap: 14px;
}

.lead-brain-core {
  border: 1px solid rgba(41, 211, 192, 0.24);
  background: rgba(21, 36, 59, 0.96);
}

.walkthrough-number {
  display: inline-grid;
  place-items: center;
  width: 34px;
  height: 34px;
  margin-bottom: 14px;
  border-radius: 10px;
  background: rgba(41, 211, 192, 0.14);
  color: var(--accent-strong);
  font-weight: 800;
}

.demo-preview {
  display: grid;
  gap: 14px;
}

.demo-preview .selector-card {
  padding: 16px;
}

.diagram-card {
  display: grid;
  gap: 14px;
}

.diagram-arrow {
  text-align: center;
  color: var(--accent-strong);
  font-weight: 800;
}

.faq details {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: rgba(17, 30, 51, 0.82);
  padding: 16px;
}

.faq summary {
  cursor: pointer;
  color: var(--text);
  font-weight: 800;
}

.faq details p {
  margin-top: 10px;
}

.footer {
  border-top: 1px solid var(--border);
  background: #050b14;
  padding: 30px 0 42px;
}

.footer-grid {
  display: grid;
  gap: 14px;
}

.footer a {
  color: var(--text-secondary);
}

.demo-shell {
  align-items: start;
}

.demo-sidebar {
  display: grid;
  gap: 14px;
}

.demo-sidebar .selector-grid {
  grid-template-columns: 1fr;
}

.demo-panel {
  display: grid;
  gap: 14px;
}

.demo-panel h2,
.demo-panel h3 {
  margin-bottom: 0;
}

.panel-label {
  color: var(--text-muted);
  font-size: 0.81rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-weight: 700;
}

.source-card,
.message-card,
.record-list,
.summary-list {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: rgba(13, 23, 40, 0.8);
  padding: 16px;
}

.message-card pre {
  margin: 0;
  white-space: pre-wrap;
  font-family: inherit;
  color: var(--text-secondary);
}

.record-list,
.summary-list,
.details-grid {
  display: grid;
  gap: 10px;
}

.record-row,
.detail-row,
.summary-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  border-bottom: 1px solid rgba(51, 71, 102, 0.38);
  padding-bottom: 10px;
}

.record-row:last-child,
.detail-row:last-child,
.summary-row:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.record-row span:first-child,
.detail-row span:first-child,
.summary-row span:first-child {
  color: var(--text-muted);
}

.record-row span:last-child,
.detail-row span:last-child,
.summary-row span:last-child {
  color: var(--text);
  text-align: right;
}

.callout {
  border-left: 4px solid var(--accent);
  border-radius: var(--radius-sm);
  background: rgba(41, 211, 192, 0.08);
  padding: 14px;
}

.mini-note {
  font-size: 0.92rem;
}

.survey-shell {
  display: grid;
  gap: 18px;
}

.survey-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.demo-cta-panel {
  background: linear-gradient(180deg, rgba(21, 36, 59, 1), rgba(13, 23, 40, 1));
}

.no-shadow {
  box-shadow: none;
}

@media (max-width: 919px) {
  .nav-links a:not(.button) {
    display: none;
  }

  .nav-links .button {
    min-width: auto;
    padding: 10px 12px;
    font-size: 0.88rem;
  }
}

@media (min-width: 760px) {
  .hero {
    padding: 82px 0 46px;
  }

  .section {
    padding: 68px 0;
  }

  .hero-grid {
    grid-template-columns: 1.18fr 0.82fr;
    align-items: start;
  }

  .definition-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .pain-grid,
  .cards,
  .systems-grid,
  .six-step-grid,
  .faq-grid,
  .topline,
  .metrics-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .flow-grid,
  .split,
  .trust-grid,
  .next-step-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .lead-brain-layout {
    grid-template-columns: 1fr minmax(260px, 0.9fr) 1fr;
    align-items: start;
  }

  .selector-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .output-grid,
  .demo-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .demo-shell {
    grid-template-columns: 0.9fr 1.1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr auto;
    align-items: center;
  }
}

@media (min-width: 980px) {
  .selector-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .six-step-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}