/* SignalScout — crafted B2B intelligence. Own identity. Not an AI wrapper. */
:root {
  --bg: #f4f3ef;
  --surface: #fffcf7;
  --ink: #12141a;
  --ink-2: #5c616c;
  --line: #e3e0d8;
  --line-2: #efece5;
  --accent: #141c24;
  --accent-2: #243040;
  --signal: #1f6b63;
  --signal-soft: rgba(31, 107, 99, 0.16);
  --link: #1a5c56;
  --chip: #ece8e0;
  --max: 72rem;
  --text: 38rem;
  --radius: 14px;
  --shadow: 0 18px 40px -28px rgba(18, 20, 26, 0.42);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Plus Jakarta Sans", "Segoe UI", system-ui, sans-serif;
  font-size: 1rem;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
img, svg { display: block; }
a { color: var(--link); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--accent); }
h1, h2, h3 {
  font-family: "Plus Jakarta Sans", "Segoe UI", system-ui, sans-serif;
  font-weight: 600;
  line-height: 1.12;
  letter-spacing: -0.034em;
  margin: 0 0 0.75rem;
  color: var(--ink);
}
h1 { font-size: clamp(2.05rem, 4.6vw, 3.2rem); }
h2 { font-size: clamp(1.45rem, 2.5vw, 1.95rem); }
h3 { font-size: 1.06rem; letter-spacing: -0.02em; }
p { margin: 0 0 1rem; color: var(--ink); }
p.lede, .muted { color: var(--ink-2); }
.wrap { width: min(100% - 2.5rem, var(--max)); margin-inline: auto; }
.wrap-text { width: min(100% - 2.5rem, var(--text)); margin-inline: auto; }

.page-overlays {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    linear-gradient(rgba(18, 20, 26, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(18, 20, 26, 0.035) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 20%, #000 35%, transparent 80%);
  animation: grid-shift 48s linear infinite;
}
body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  box-shadow: inset 0 0 120px rgba(18, 20, 26, 0.06);
}
header, main, footer { position: relative; z-index: 2; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  border-bottom: 1px solid transparent;
  background: rgba(244, 243, 239, 0.55);
  backdrop-filter: blur(8px);
  transition: background 220ms var(--ease), border-color 220ms var(--ease), box-shadow 220ms var(--ease);
}
.site-header.is-scrolled {
  background: rgba(244, 243, 239, 0.78);
  border-bottom-color: var(--line);
  box-shadow: 0 8px 24px -22px rgba(18, 20, 26, 0.5);
}
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 3.55rem;
}
.wordmark {
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: -0.04em;
}
nav { display: flex; align-items: center; gap: 1.2rem; font-size: 0.9rem; }
nav a { color: var(--ink-2); text-decoration: none; font-weight: 500; transition: color 180ms var(--ease); }
nav a:hover { color: var(--ink); }
nav .btn { color: #fff; }
.cta-short { display: none; }

.btn {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  border: 1px solid var(--accent);
  border-radius: 9px;
  padding: 0.74rem 1.12rem;
  font: 600 0.92rem/1 "Plus Jakarta Sans", "Segoe UI", system-ui, sans-serif;
  cursor: pointer;
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.08) inset;
  transition: transform 180ms var(--ease), background 180ms var(--ease), box-shadow 180ms var(--ease), border-color 180ms var(--ease);
}
.btn:hover {
  background: var(--accent-2);
  border-color: var(--accent-2);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 10px 22px -14px rgba(20, 28, 36, 0.55);
}
.btn:active { transform: translateY(0); }
.btn-secondary {
  display: inline-block;
  background: var(--surface);
  color: var(--ink);
  text-decoration: none;
  border: 1px solid var(--line);
  border-radius: 9px;
  padding: 0.74rem 1.12rem;
  font: 600 0.92rem/1 "Plus Jakarta Sans", "Segoe UI", system-ui, sans-serif;
  transition: border-color 180ms var(--ease), transform 180ms var(--ease), box-shadow 180ms var(--ease);
}
.btn-secondary:hover {
  border-color: var(--ink);
  color: var(--ink);
  transform: translateY(-1px);
  box-shadow: var(--shadow);
}
.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem 0.8rem;
  align-items: center;
  margin-top: 1.55rem;
}
.btn-row .price-note { flex: 1 0 100%; }
.text-link { font-weight: 600; font-size: 0.92rem; }

.hero {
  position: relative;
  padding: 3.5rem 0 3.6rem;
  overflow: hidden;
}
.hero-glow {
  position: absolute;
  width: 42rem;
  height: 42rem;
  right: -6rem;
  top: -4rem;
  background: radial-gradient(circle, rgba(31, 107, 99, 0.14), transparent 68%);
  pointer-events: none;
}
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(21rem, 27.5rem);
  gap: 3rem 3.25rem;
  align-items: center;
}
.kicker {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-2);
  margin-bottom: 0.85rem;
  font-weight: 600;
}
.hero p.lede { font-size: 1.08rem; max-width: 34rem; margin-bottom: 0; }
.price-note { font-size: 0.86rem; color: var(--ink-2); margin: 0.85rem 0 0; }

.rise {
  animation: rise 360ms var(--ease) both;
}
.rise-delay { animation-delay: 90ms; }

.product-ui {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  min-width: 0;
  overflow: hidden;
}
.preview-ui { position: relative; }
.ui-chrome {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
  padding: 0.72rem 1rem;
  background: var(--accent);
  color: #fff;
}
.ui-app {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}
.ui-chip {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  background: rgba(255, 255, 255, 0.1);
  padding: 0.22rem 0.48rem;
  border-radius: 999px;
  white-space: nowrap;
}
.ui-banner {
  margin: 0;
  padding: 0.5rem 1rem;
  font-size: 0.74rem;
  color: var(--ink-2);
  background: var(--line-2);
  border-bottom: 1px solid var(--line);
}
.ui-fields { margin: 0; }
.ui-fields > div {
  padding: 0.7rem 1rem;
  border-top: 1px solid var(--line-2);
}
.ui-fields > div:first-child { border-top: 0; }
.ui-fields dt,
.signal-deep dt {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 0.64rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-2);
  margin-bottom: 0.2rem;
}
.ui-fields dd,
.signal-deep dd {
  margin: 0;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--ink);
}
.ui-fields a,
.signal-deep a { font-weight: 600; }
.ui-foot {
  margin: 0;
  padding: 0.65rem 1rem 0.8rem;
  border-top: 1px solid var(--line);
  background: rgba(244, 243, 239, 0.7);
  font-size: 0.75rem;
  color: var(--ink-2);
}

.reveal-rows > div {
  opacity: 0;
  transform: translateY(8px);
  animation: rise 280ms var(--ease) forwards;
}
.reveal-rows > div:nth-child(1) { animation-delay: 140ms; }
.reveal-rows > div:nth-child(2) { animation-delay: 180ms; }
.reveal-rows > div:nth-child(3) { animation-delay: 220ms; }
.reveal-rows > div:nth-child(4) { animation-delay: 260ms; }
.reveal-rows > div:nth-child(5) { animation-delay: 300ms; }
.reveal-rows > div:nth-child(6) { animation-delay: 340ms; }
.reveal-rows > div:nth-child(7) { animation-delay: 380ms; }
.reveal-rows > div:nth-child(8) { animation-delay: 420ms; }

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #3ec7b8;
  box-shadow: 0 0 0 0 rgba(62, 199, 184, 0.45);
  animation: pulse 2.6s var(--ease) infinite;
  flex: 0 0 auto;
}
.ui-chrome .status-dot { background: #7ee0d4; }

.section { padding: 3.25rem 0; }
.section-head { margin-bottom: 1.75rem; max-width: 42rem; }
.section-head-tight { margin-bottom: 1.15rem; }

.story-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 0;
  margin: 1.1rem 0 0;
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 0.66rem;
  font-weight: 600;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--ink-2);
}
.story-legend span + span::before {
  content: "→";
  display: inline-block;
  margin: 0 0.45rem;
  color: #c8c4bb;
}

.loop {
  padding: 3.4rem 0;
  border-top: 1px solid var(--line);
}
.flow {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  position: relative;
}
.flow-step {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.15rem 1.15rem 1.2rem;
  min-width: 0;
  box-shadow: 0 10px 28px -24px rgba(18, 20, 26, 0.4);
}
.flow-step + .flow-step { margin-left: 0.85rem; }
.flow-step:not(:last-child)::after {
  content: "";
  position: absolute;
  top: 1.45rem;
  right: -0.85rem;
  width: 0.85rem;
  height: 1px;
  background: var(--line);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 320ms var(--ease);
}
.flow-step.in-view:not(:last-child)::after { transform: scaleX(1); }
.loop-num {
  display: block;
  margin-bottom: 0.7rem;
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--ink-2);
}
.flow-step h3 { margin-bottom: 0.4rem; }
.flow-step p { margin: 0 0 0.9rem; color: var(--ink-2); font-size: 0.92rem; }
.mini-ui {
  margin: 0;
  padding: 0.7rem 0.8rem;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 8px;
}
.mini-ui figcaption {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--ink-2);
  margin-bottom: 0.3rem;
}
.mini-ui p { margin: 0; color: var(--ink); font-weight: 600; font-size: 0.9rem; }
.signal-types,
.deliverable {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}
.signal-types li,
.deliverable li {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--ink);
  background: var(--chip);
  border-radius: 999px;
  padding: 0.28rem 0.55rem;
}

.signals {
  padding: 3.25rem 0 3.4rem;
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255, 252, 247, 0.55), transparent 40%);
}
.record-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  align-items: start;
}
.signal-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 10px 28px -24px rgba(18, 20, 26, 0.4);
  overflow: hidden;
  transition: transform 220ms var(--ease), box-shadow 220ms var(--ease), border-color 220ms var(--ease);
}
.signal-card:hover,
.signal-card:focus-within {
  transform: translateY(-3px);
  box-shadow: 0 18px 36px -24px rgba(18, 20, 26, 0.5);
  border-color: #d4d0c7;
}
.signal-face { padding: 1.05rem 1.05rem 0.95rem; }
.signal-meta {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  margin-bottom: 0.7rem;
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 0.66rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-2);
}
.signal-meta time { margin-left: auto; font-weight: 500; }
.signal-card h3 { margin: 0 0 0.2rem; overflow-wrap: anywhere; }
.signal-loc,
.signal-line { margin: 0; font-size: 0.9rem; color: var(--ink-2); }
.signal-line { color: var(--ink); font-weight: 600; margin-top: 0.35rem; }
.signal-deep {
  display: grid;
  grid-template-rows: 0fr;
  opacity: 0;
  transition: grid-template-rows 280ms var(--ease), opacity 240ms var(--ease);
}
.signal-deep > * { min-height: 0; overflow: hidden; }
.signal-card:hover .signal-deep,
.signal-card:focus-within .signal-deep,
.signal-card.is-open .signal-deep {
  grid-template-rows: 1fr;
  opacity: 1;
}
.signal-deep dl { margin: 0; }
.signal-deep dl > div {
  padding: 0.7rem 1.05rem;
  border-top: 1px solid var(--line-2);
}

.proof-note {
  margin: 1.1rem 0 0;
  font-size: 0.82rem;
  color: var(--ink-2);
  max-width: 46rem;
}

.diff {
  padding: 3.25rem 0;
  border-top: 1px solid var(--line);
}
.diff-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
.diff-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.3rem 1.35rem;
  transition: transform 220ms var(--ease), box-shadow 220ms var(--ease);
}
.diff-card:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.diff-card-on { border-color: #c9d8d5; box-shadow: 0 0 0 1px var(--signal-soft); }
.diff-card h3 { margin-bottom: 0.45rem; }
.diff-card p { margin: 0; color: var(--ink-2); }

.pricing {
  padding: 3.25rem 0;
  border-top: 1px solid var(--line);
}
.pricing-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(18rem, 22rem);
  gap: 2.5rem;
  align-items: center;
}
.price-facts {
  margin: 1.2rem 0 0;
  padding: 0 0 0 1.1rem;
  color: var(--ink-2);
}
.price-facts li { margin-bottom: 0.45rem; }
.price-ui { padding-bottom: 1.15rem; }
.price-ui .btn { display: block; text-align: center; margin: 0 1rem; }
.price-ui .price-note { margin: 0.7rem 1rem 0; }
.price-block { padding: 1.15rem 1rem 1rem; }
.price-amount {
  margin: 0;
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1;
}
.price-caption {
  margin: 0.35rem 0 0.4rem;
  color: var(--ink-2);
  font-size: 0.9rem;
}

.trust {
  padding: 2.75rem 0;
  border-top: 1px solid var(--line);
}
.trust-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.85rem;
}
.trust-list li {
  margin: 0;
  padding: 1rem 1rem 1.05rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font-size: 0.88rem;
  color: var(--ink-2);
}
.trust-list li span {
  display: block;
  margin-bottom: 0.35rem;
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--ink);
}
.founder {
  margin: 1.15rem 0 0;
  font-size: 0.88rem;
  color: var(--ink-2);
}

.faq { border-top: 1px solid var(--line); background: var(--surface); }
.faq details {
  border-top: 1px solid var(--line);
  padding: 0.95rem 0;
}
.faq details:last-child { border-bottom: 1px solid var(--line); }
.faq summary {
  cursor: pointer;
  font-weight: 600;
  list-style: none;
  padding-right: 1.5rem;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  float: right;
  color: var(--ink-2);
  font-weight: 500;
}
.faq details[open] summary::after { content: "–"; }
.faq details p { margin: 0.55rem 0 0.15rem; color: var(--ink-2); max-width: 38rem; }

.site-footer {
  padding: 1.35rem 0 1.85rem;
  font-size: 0.86rem;
  color: var(--ink-2);
  background: var(--surface);
  border-top: 1px solid var(--line);
}
.site-footer .wrap { display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
.site-footer a { color: var(--ink-2); text-decoration: none; }
.site-footer a:hover { color: var(--ink); }

.page-form { padding: 3rem 0 3.4rem; }
.form-layout {
  display: grid;
  grid-template-columns: minmax(0, 32rem) minmax(16rem, 22rem);
  gap: 2.25rem;
  align-items: start;
}
.form-layout .lede { max-width: 36rem; }
form { display: grid; gap: 1rem; max-width: 32rem; }
label { display: grid; gap: 0.35rem; font-size: 0.88rem; font-weight: 600; }
input, textarea {
  font: 1rem/1.4 "Plus Jakarta Sans", "Segoe UI", system-ui, sans-serif;
  padding: 0.7rem 0.75rem;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: var(--surface);
  color: var(--ink);
  width: 100%;
  transition: border-color 180ms var(--ease), box-shadow 180ms var(--ease);
}
input:focus, textarea:focus {
  outline: none;
  border-color: var(--signal);
  box-shadow: 0 0 0 3px var(--signal-soft);
}
textarea { min-height: 7rem; resize: vertical; }
.form-note { font-size: 0.85rem; color: var(--ink-2); font-weight: 400; }
.notice {
  display: none;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 9px;
  padding: 0.85rem 1rem;
  margin-bottom: 1.15rem;
  max-width: 32rem;
}
.notice.show { display: block; }

.reveal {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 320ms var(--ease), transform 320ms var(--ease);
}
.reveal.in-view {
  opacity: 1;
  transform: none;
}

@keyframes rise {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: none; }
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(62, 199, 184, 0.45); }
  70% { box-shadow: 0 0 0 6px rgba(62, 199, 184, 0); }
  100% { box-shadow: 0 0 0 0 rgba(62, 199, 184, 0); }
}
@keyframes grid-shift {
  from { background-position: 0 0; }
  to { background-position: 56px 56px; }
}

@media (max-width: 1080px) {
  .flow { grid-template-columns: 1fr 1fr; gap: 0.85rem; }
  .flow-step + .flow-step { margin-left: 0; }
  .flow-step:not(:last-child)::after { display: none; }
  .trust-list { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 960px) {
  .hero-grid,
  .pricing-grid,
  .form-layout,
  .diff-grid { grid-template-columns: 1fr; }
  .hero-grid { gap: 1.75rem; }
  .record-grid { grid-template-columns: 1fr; max-width: 36rem; }
  .hero { padding: 2rem 0 2.15rem; }
  .ui-chrome { flex-wrap: wrap; }
}

@media (max-width: 800px) {
  nav .nav-hide { display: none; }
  .cta-short { display: inline; }
  .cta-long { display: none; }
  .wrap, .wrap-text { width: min(100% - 1.5rem, var(--max)); }
  .hero p.lede { font-size: 1rem; }
  .loop,
  .signals,
  .diff,
  .pricing,
  .trust,
  .section { padding: 2rem 0; }
  .flow { grid-template-columns: 1fr; }
  .trust-list { grid-template-columns: 1fr; }
  .btn-row .btn,
  .btn-row .btn-secondary { width: 100%; text-align: center; }
  .site-header .wrap { min-height: 3.15rem; }
  .signal-deep {
    grid-template-rows: 1fr;
    opacity: 1;
  }
}

@media (max-width: 420px) {
  h1 { font-size: 1.72rem; }
}

@media (prefers-reduced-motion: reduce) {
  .page-overlays { animation: none; }
  .rise,
  .reveal-rows > div,
  .status-dot { animation: none; }
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .signal-deep,
  .flow-step:not(:last-child)::after,
  .btn,
  .btn-secondary,
  .signal-card,
  .diff-card {
    transition: none;
  }
  .btn:hover,
  .btn-secondary:hover,
  .signal-card:hover { transform: none; }
}