:root {
  --ink: #1c1a17;
  --ink-soft: #4a463e;
  --paper: #f0f1ec;
  --panel: #e4e5de;
  --track: #b23a2e;
  --brass: #a9832e;
  --line: rgba(28, 26, 23, 0.16);
  --max: 960px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; background: #ffffff; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: 'IBM Plex Sans', system-ui, sans-serif;
  font-size: 17px;
  line-height: 1.6;
}

h1, h2, h3 {
  font-family: 'Big Shoulders Display', sans-serif;
  font-weight: 700;
  line-height: 0.98;
  margin: 0;
  letter-spacing: 0.2px;
}

h1 { font-size: clamp(2.6rem, 6vw, 4.6rem); font-weight: 800; }
h2 { font-size: clamp(1.8rem, 3.4vw, 2.6rem); }
h3 { font-size: 1.35rem; font-weight: 600; }

p { margin: 0 0 1em; max-width: 62ch; color: var(--ink-soft); }

a { color: inherit; }

.mono {
  font-family: 'IBM Plex Mono', monospace;
}

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 28px;
}

/* Header */
header.site {
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  background: var(--paper);
  z-index: 10;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 28px;
  max-width: var(--max);
  margin: 0 auto;
}

.wordmark {
  font-family: 'Big Shoulders Display', sans-serif;
  font-weight: 800;
  font-size: 1.5rem;
  text-decoration: none;
  color: var(--ink);
}

.wordmark span { color: var(--track); }

.navlinks {
  display: flex;
  gap: 28px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.navlinks a {
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--ink-soft);
  border-bottom: 2px solid transparent;
  padding-bottom: 3px;
}

.navlinks a:hover,
.navlinks a.active {
  color: var(--ink);
  border-bottom-color: var(--track);
}

/* Hero */
.hero {
  padding: 88px 0 64px;
}

.hero p.lede {
  font-size: 1.15rem;
  max-width: 46ch;
}

.cta-row {
  display: flex;
  gap: 16px;
  margin-top: 28px;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 13px 26px;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: 3px;
  border: 1px solid var(--ink);
}

.btn.primary {
  background: var(--track);
  border-color: var(--track);
  color: #fdf9f4;
}

.btn.ghost {
  background: transparent;
  color: var(--ink);
}

/* Readout panel — decorative, ties hero to the speed-reading product */
.readout {
  background: var(--ink);
  color: #f0f1ec;
  padding: 32px;
  border-radius: 4px;
  position: relative;
}

.readout .label {
  font-size: 0.8rem;
  color: #b7b3a8;
  margin-bottom: 6px;
}

.readout .digits {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 3.6rem;
  font-weight: 600;
  color: #f0f1ec;
  line-height: 1;
}

.readout .digits .unit {
  font-size: 1.1rem;
  color: var(--brass);
  margin-left: 8px;
}

.readout .sub {
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px solid rgba(255,255,255,0.14);
  font-size: 0.85rem;
  color: #b7b3a8;
}

/* Lane divider */
.lane {
  border: none;
  border-top: 1px solid var(--line);
  margin: 0;
}

section { padding: 64px 0; }

.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 36px;
  flex-wrap: wrap;
}

.kicker {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.82rem;
  color: var(--track);
}

/* Pillars / three-column */
.grid3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 36px;
}

.grid4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.pillar .num {
  font-family: 'IBM Plex Mono', monospace;
  color: var(--brass);
  font-size: 0.9rem;
  margin-bottom: 10px;
  display: block;
}

/* Product feature block */
.product-feature {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.spec-list {
  list-style: none;
  padding: 0;
  margin: 20px 0 0;
  display: grid;
  gap: 12px;
}

.spec-list li {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 12px;
  font-size: 0.92rem;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

.spec-list .k {
  font-family: 'IBM Plex Mono', monospace;
  color: var(--ink-soft);
  font-size: 0.82rem;
  text-transform: none;
}

/* Numbered steps (How it works) */
.steps-list {
  list-style: none;
  counter-reset: step;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  gap: 18px;
}

.steps-list li {
  counter-increment: step;
  display: grid;
  grid-template-columns: 32px 1fr;
  gap: 14px;
  align-items: baseline;
}

.steps-list li::before {
  content: counter(step);
  font-family: 'IBM Plex Mono', monospace;
  color: var(--brass);
  font-size: 1rem;
}

/* Feature checklist */
.feature-grid {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px 28px;
}

.feature-grid li {
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
  font-size: 0.95rem;
}

@media (max-width: 640px) {
  .feature-grid { grid-template-columns: 1fr; }
}

/* Numbered steps (How it works) end */

.roadmap-row {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 24px;
  padding: 26px 0;
  border-top: 1px solid var(--line);
}

.roadmap-row:last-child { border-bottom: 1px solid var(--line); }

.roadmap-row .status {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.78rem;
  color: var(--track);
}

/* Contact panel — single consolidated block */
.contact-panel {
  margin-top: 36px;
  border: 1px solid var(--line);
  padding: 32px;
  max-width: 620px;
}

.contact-panel .spec-list {
  margin: 0 0 28px;
}

.contact-panel .spec-list li:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.contact-panel .spec-list li {
  grid-template-columns: 170px 1fr;
}

/* Audience cards (contact) */
.audience {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  margin-top: 36px;
}

.audience > div {
  background: var(--paper);
  padding: 28px;
}

.audience h3 { margin-bottom: 8px; }

.audience a.mailto {
  display: inline-block;
  margin-top: 10px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.88rem;
  color: var(--track);
  text-decoration: none;
  border-bottom: 1px solid var(--track);
}

/* Footer */
footer.site {
  border-top: 1px solid var(--line);
  padding: 32px 0;
  margin-top: 40px;
}

.footer-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.85rem;
  color: var(--ink-soft);
}

.footer-links {
  display: flex;
  gap: 20px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-links a {
  text-decoration: none;
  color: var(--ink-soft);
  border-bottom: 1px solid transparent;
}

.footer-links a:hover {
  color: var(--ink);
  border-bottom-color: var(--track);
}

/* Floating WhatsApp chat link */
.whatsapp-float {
  position: fixed;
  right: 22px;
  bottom: 22px;
  display: flex;
  align-items: center;
  gap: 10px;
  background: #1c1a17;
  color: #f0f1ec;
  text-decoration: none;
  padding: 12px 18px 12px 14px;
  border-radius: 999px;
  font-size: 0.88rem;
  font-weight: 600;
  box-shadow: 0 6px 18px rgba(28, 26, 23, 0.28);
  z-index: 50;
}

.whatsapp-float:hover {
  background: var(--track);
}

.whatsapp-float svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

@media (max-width: 480px) {
  .whatsapp-float span { display: none; }
  .whatsapp-float {
    padding: 12px;
    border-radius: 50%;
  }
}

@media (max-width: 900px) {
  .grid4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 760px) {
  .product-feature { grid-template-columns: 1fr; }
  .grid3, .grid4, .audience { grid-template-columns: 1fr; }
  .roadmap-row { grid-template-columns: 1fr; }
  .navlinks { gap: 16px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}