:root {
  color-scheme: light;
  --ink: #18201b;
  --muted: #5f6d65;
  --line: #d8e3db;
  --paper: #fbfcf8;
  --panel: #ffffff;
  --green: #126b4e;
  --green-dark: #0c4938;
  --amber: #e5a11a;
  --blue: #2f6fa3;
  --soft-green: #e7f3ec;
  --soft-blue: #e8f1f8;
  --shadow: 0 24px 70px rgba(20, 43, 33, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.5;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 72px;
  padding: 14px clamp(18px, 4vw, 56px);
  background: rgba(251, 252, 248, 0.92);
  border-bottom: 1px solid rgba(216, 227, 219, 0.8);
  backdrop-filter: blur(16px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  min-width: max-content;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 7px;
  color: #ffffff;
  background: var(--green);
  font-size: 13px;
}

.nav {
  display: flex;
  gap: 22px;
  color: var(--muted);
  font-size: 14px;
}

.nav a:hover,
.header-cta:hover,
.footer a:hover {
  color: var(--green);
}

.header-cta {
  min-width: max-content;
  color: var(--green-dark);
  font-weight: 700;
  font-size: 14px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, 0.78fr);
  align-items: center;
  gap: clamp(32px, 5vw, 78px);
  min-height: calc(100vh - 72px);
  padding: clamp(56px, 8vw, 104px) clamp(18px, 5vw, 72px) clamp(36px, 5vw, 64px);
  border-bottom: 1px solid var(--line);
}

.hero-copy {
  max-width: 760px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--green);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

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

h1 {
  max-width: 780px;
  margin-bottom: 20px;
  font-size: clamp(44px, 7vw, 82px);
  line-height: 0.96;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 16px;
  font-size: clamp(32px, 4vw, 52px);
  line-height: 1.02;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 21px;
  line-height: 1.2;
}

.hero-text,
.section-heading p,
.pilot p {
  color: var(--muted);
  font-size: 18px;
}

.hero-text {
  max-width: 670px;
  margin-bottom: 30px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 13px 18px;
  border: 1px solid var(--green);
  border-radius: 7px;
  font-weight: 800;
  font-size: 15px;
}

.button.primary {
  color: #ffffff;
  background: var(--green);
}

.button.primary:hover {
  background: var(--green-dark);
}

.button.secondary {
  color: var(--green-dark);
  background: transparent;
}

.button.secondary:hover {
  background: var(--soft-green);
}

.button.full {
  width: 100%;
}

.proof-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  width: min(100%, 680px);
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--line);
}

.proof-strip div {
  padding: 16px;
  background: var(--panel);
}

.proof-strip dt {
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.proof-strip dd {
  margin: 4px 0 0;
  font-weight: 800;
}

.flow-panel {
  display: grid;
  gap: 18px;
  align-content: center;
  max-width: 520px;
  margin-left: auto;
}

.phone-card,
.summary-card,
.price-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.phone-card {
  padding: 18px;
}

.phone-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 18px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.status-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #d94d35;
}

.message {
  width: fit-content;
  max-width: 88%;
  margin-top: 12px;
  padding: 12px 14px;
  border-radius: 8px;
  font-size: 14px;
}

.message.inbound {
  color: var(--ink);
  background: #f0f2ee;
}

.message.outbound {
  margin-left: auto;
  color: #ffffff;
  background: var(--blue);
}

.summary-card {
  padding: 22px;
}

.card-label {
  display: block;
  margin-bottom: 10px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.summary-card h2 {
  margin-bottom: 14px;
  font-size: 28px;
}

.summary-card ul {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.summary-card li {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  padding: 11px 0;
  border-top: 1px solid var(--line);
  font-weight: 800;
  text-align: right;
}

.summary-card li span {
  color: var(--muted);
  font-weight: 700;
  text-align: left;
}

.section {
  padding: clamp(58px, 8vw, 96px) clamp(18px, 5vw, 72px);
  border-bottom: 1px solid var(--line);
}

.section-heading {
  max-width: 780px;
  margin-bottom: 34px;
}

.section-heading.compact {
  margin-bottom: 0;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.feature {
  min-height: 190px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.feature:nth-child(2) {
  background: var(--soft-green);
}

.feature:nth-child(3) {
  background: var(--soft-blue);
}

.feature p,
.steps li,
.fine-print,
.monthly {
  color: var(--muted);
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 0.78fr) minmax(340px, 1fr);
  gap: clamp(28px, 5vw, 76px);
  align-items: start;
}

.steps {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.steps li {
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr);
  gap: 16px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.steps span {
  grid-row: span 2;
  color: var(--amber);
  font-size: 22px;
  font-weight: 900;
}

.steps strong {
  display: block;
  color: var(--ink);
  font-size: 18px;
}

.pilot {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 420px);
  gap: clamp(28px, 5vw, 76px);
  align-items: center;
  background: #edf5ef;
}

.pilot > div:first-child {
  max-width: 760px;
}

.price-card {
  padding: 28px;
}

.price {
  margin-bottom: 2px;
  color: var(--green-dark);
  font-size: 42px;
  font-weight: 900;
  line-height: 1;
}

.monthly {
  margin-bottom: 20px;
  font-weight: 800;
}

.fine-print {
  margin-bottom: 22px;
  font-size: 14px;
}

.footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 30px clamp(18px, 5vw, 72px);
  color: var(--muted);
  background: var(--ink);
}

.footer strong,
.footer a {
  color: #ffffff;
}

.footer p {
  margin: 4px 0 0;
}

@media (max-width: 980px) {
  .hero,
  .split,
  .pilot {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .flow-panel {
    width: 100%;
    max-width: none;
    margin: 0;
  }

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

@media (max-width: 720px) {
  .site-header {
    position: static;
    flex-wrap: wrap;
    align-items: flex-start;
  }

  .nav {
    order: 3;
    width: 100%;
    gap: 14px;
    overflow-x: auto;
    padding-top: 4px;
  }

  .header-cta {
    padding-top: 8px;
  }

  h1 {
    font-size: 44px;
  }

  h2 {
    font-size: 32px;
  }

  .proof-strip,
  .feature-grid {
    grid-template-columns: 1fr;
  }

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

  .steps span {
    grid-row: auto;
  }

  .footer {
    display: grid;
  }
}

@media (max-width: 430px) {
  .brand {
    font-size: 15px;
  }

  .hero,
  .section {
    padding-left: 16px;
    padding-right: 16px;
  }

  .hero-actions,
  .button {
    width: 100%;
  }

  .summary-card li {
    display: grid;
    text-align: left;
  }
}