:root {
  --ink: #121826;
  --muted: #5a6678;
  --line: rgba(18, 24, 38, 0.14);
  --paper: #ffffff;
  --soft: #f5f7f7;
  --teal: #0f766e;
  --teal-dark: #134e4a;
  --gold: #a96818;
  --coral: #a94835;
  --graphite: #17202b;
  --shadow: 0 18px 54px rgba(16, 24, 40, 0.16);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, "Segoe UI", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.48;
}

a {
  color: inherit;
}

.topbar {
  position: fixed;
  z-index: 20;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 12px clamp(18px, 4vw, 46px);
  color: #fff;
  background: linear-gradient(180deg, rgba(7, 12, 20, 0.78), rgba(7, 12, 20, 0));
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  text-decoration: none;
  font-weight: 800;
}

.brand__mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border: 1px solid rgba(255,255,255,0.42);
  background: rgba(255,255,255,0.12);
  border-radius: 8px;
}

.brand__text {
  white-space: nowrap;
}

.nav {
  display: flex;
  align-items: center;
  gap: clamp(12px, 2vw, 24px);
  font-size: 14px;
}

.nav a {
  text-decoration: none;
  color: rgba(255,255,255,0.9);
}

.hero {
  position: relative;
  min-height: 86vh;
  display: grid;
  align-items: center;
  overflow: hidden;
  color: #fff;
}

.hero__image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero__shade {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(7, 12, 22, 0.90) 0%, rgba(7, 12, 22, 0.72) 38%, rgba(7, 12, 22, 0.18) 74%, rgba(7, 12, 22, 0.08) 100%),
    linear-gradient(180deg, rgba(7, 12, 22, 0.34), rgba(7, 12, 22, 0.62));
}

.hero__content {
  position: relative;
  z-index: 1;
  width: min(690px, calc(100% - 36px));
  margin-left: clamp(18px, 6vw, 76px);
  padding-top: 62px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--teal);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero .eyebrow,
.section--contact .eyebrow {
  color: #7dd3c7;
}

h1, h2, h3, p, li {
  overflow-wrap: anywhere;
}

h1 {
  margin: 0;
  max-width: 680px;
  font-size: clamp(29px, 3.7vw, 48px);
  line-height: 1.08;
  letter-spacing: 0;
}

h2 {
  margin: 0;
  font-size: clamp(23px, 2.6vw, 32px);
  line-height: 1.12;
  letter-spacing: 0;
}

h3 {
  margin: 0 0 8px;
  font-size: 17px;
  line-height: 1.22;
}

.hero__lead {
  margin: 18px 0 0;
  max-width: 620px;
  color: rgba(255,255,255,0.88);
  font-size: clamp(15px, 1.35vw, 18px);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 17px;
  border: 1px solid transparent;
  border-radius: 8px;
  font-weight: 800;
  text-decoration: none;
  cursor: pointer;
  transition: transform .16s ease, background .16s ease, border-color .16s ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button--primary {
  color: #fff;
  background: var(--teal);
}

.button--secondary {
  color: #fff;
  border-color: rgba(255,255,255,0.32);
  background: rgba(255,255,255,0.10);
}

.hero__metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin: 30px 0 0;
  max-width: 680px;
}

.hero__metrics div {
  min-height: 78px;
  padding: 12px;
  border: 1px solid rgba(255,255,255,0.20);
  border-radius: 8px;
  background: rgba(7, 12, 22, 0.36);
}

.hero__metrics dt {
  font-size: 22px;
  font-weight: 900;
}

.hero__metrics dd {
  margin: 3px 0 0;
  color: rgba(255,255,255,0.78);
  font-size: 12px;
}

.section {
  padding: clamp(42px, 5.4vw, 68px) clamp(18px, 4vw, 46px);
}

.section--intro {
  padding-top: 36px;
  background: var(--paper);
}

.section--money {
  background: #f0f6f5;
}

.section--demo {
  background: #f6f1e9;
}

.section--pilot {
  background: #eef3f7;
}

.section--builder {
  background: #fff;
}

.section--contact {
  background: var(--graphite);
  color: #fff;
}

.section__inner {
  width: min(1120px, 100%);
  margin: 0 auto;
}

.section-head {
  max-width: 760px;
  margin-bottom: 24px;
}

.intro-grid,
.money-layout,
.demo-layout,
.pilot-grid,
.builder-layout,
.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr);
  gap: clamp(24px, 5vw, 62px);
  align-items: start;
}

.intro-copy,
.builder-copy {
  color: var(--muted);
  font-size: 17px;
}

.intro-copy p:first-child,
.builder-copy p:first-child,
.money-copy p:first-child,
.demo-copy p:first-child {
  margin-top: 0;
}

.flow {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.flow__item,
.features article,
.demo-panel,
.lead-form,
.signal-panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  box-shadow: 0 10px 30px rgba(16, 24, 40, 0.06);
}

.flow__item {
  padding: 16px;
  min-height: 170px;
}

.flow__num {
  display: inline-block;
  margin-bottom: 18px;
  color: var(--gold);
  font-weight: 900;
}

.flow__item p,
.features p,
.money-copy p,
.demo-copy p,
.timeline li,
.contact-note,
.signal-card span,
.manager-note span {
  color: var(--muted);
}

.money-copy p,
.demo-copy p {
  font-size: 16px;
}

.signal-panel,
.demo-panel {
  padding: 20px;
  box-shadow: var(--shadow);
}

.signal-card {
  display: grid;
  gap: 4px;
  margin-top: 12px;
  padding: 14px;
  border: 1px solid rgba(18, 24, 38, 0.10);
  border-radius: 8px;
  background: #f7faf9;
}

.signal-card strong {
  color: var(--teal-dark);
}

.signal-card--accent {
  border-color: rgba(15, 118, 110, 0.28);
  background: #edf9f7;
}

.features {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.features article {
  padding: 18px;
  min-height: 142px;
}

.demo-panel__chat {
  display: grid;
  gap: 9px;
}

.chat-line {
  margin: 0;
  padding: 11px 13px;
  border-radius: 8px;
  font-size: 15px;
}

.chat-line--client {
  background: #eef2f7;
}

.chat-line--ai {
  margin-left: 24px;
  color: #fff;
  background: var(--teal-dark);
}

.manager-note {
  display: grid;
  gap: 5px;
  margin-top: 14px;
  padding: 14px;
  border-radius: 8px;
  color: #fff;
  background: #101820;
}

.manager-note span {
  color: rgba(255,255,255,0.76);
}

.timeline {
  margin: 0;
  padding-left: 22px;
  color: var(--muted);
}

.timeline li {
  padding-left: 8px;
  margin-bottom: 14px;
  font-size: 16px;
}

.timeline strong {
  color: var(--ink);
}

.contact-layout {
  align-items: center;
}

.section--contact h2 {
  color: #fff;
}

.contact-note {
  max-width: 560px;
  color: rgba(255,255,255,0.72);
  font-size: 16px;
}

.lead-form {
  display: grid;
  gap: 14px;
  padding: 22px;
  color: var(--ink);
}

.lead-form label,
.lead-form legend {
  display: grid;
  gap: 6px;
  font-size: 13px;
  font-weight: 800;
}

.lead-form input,
.lead-form select {
  width: 100%;
  min-height: 44px;
  padding: 0 12px;
  border: 1px solid rgba(17, 24, 39, 0.18);
  border-radius: 8px;
  background: #fff;
  font: inherit;
}

.lead-form fieldset {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  margin: 0;
  padding: 0;
  border: 0;
}

.lead-form legend {
  flex-basis: 100%;
}

.lead-form .radio {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
}

.lead-form .radio input {
  width: 16px;
  min-height: 16px;
}

.form-status {
  min-height: 22px;
  margin: 0;
  color: var(--teal-dark);
  font-size: 14px;
}

.footer {
  padding: 24px clamp(18px, 4vw, 46px);
  color: rgba(255,255,255,0.72);
  background: #101820;
}

.footer__inner {
  width: min(1120px, 100%);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  font-size: 13px;
}

@media (max-width: 980px) {
  .nav {
    display: none;
  }

  .hero {
    min-height: 84vh;
  }

  .hero__content {
    margin-left: 18px;
    padding-right: 18px;
  }

  .hero__metrics,
  .flow,
  .features,
  .intro-grid,
  .money-layout,
  .demo-layout,
  .pilot-grid,
  .builder-layout,
  .contact-layout {
    grid-template-columns: 1fr;
  }

  .flow__item,
  .features article {
    min-height: auto;
  }
}

@media (max-width: 640px) {
  .topbar {
    padding: 12px 16px;
  }

  .brand__text {
    display: none;
  }

  .hero {
    min-height: 88vh;
  }

  .hero__shade {
    background:
      linear-gradient(90deg, rgba(7, 12, 22, 0.92), rgba(7, 12, 22, 0.58)),
      linear-gradient(180deg, rgba(7, 12, 22, 0.28), rgba(7, 12, 22, 0.78));
  }

  h1 {
    font-size: 29px;
  }

  h2 {
    font-size: 23px;
  }

  .hero__metrics {
    gap: 8px;
  }

  .hero__metrics div {
    min-height: 72px;
    padding: 11px;
  }

  .hero__metrics dt {
    font-size: 21px;
  }

  .button {
    width: 100%;
  }

  .section {
    padding: 44px 16px;
  }

  .chat-line--ai {
    margin-left: 0;
  }

  .footer__inner {
    display: grid;
  }
}