:root {
  --bg: #ffffff;
  --text: #17202a;
  --muted: #607080;
  --line: #dfe7ee;
  --soft: #f4f8fb;
  --panel: #ffffff;
  --accent: #169b62;
  --accent-dark: #0c6c43;
  --warn: #c78914;
  --ink: #0f1720;
  --shadow: 0 24px 70px rgba(16, 32, 44, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  background: var(--bg);
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  letter-spacing: 0;
}

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: 24px;
  min-height: 72px;
  padding: 0 48px;
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  color: var(--ink);
}

.brand-mark {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  color: #fff;
  background: var(--accent);
  border-radius: 8px;
}

.nav {
  display: flex;
  gap: 24px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 600;
}

.header-cta,
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid transparent;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 750;
  cursor: pointer;
}

.header-cta,
.btn.primary {
  color: #fff;
  background: var(--accent);
  box-shadow: 0 12px 26px rgba(22, 155, 98, 0.22);
}

.btn.secondary {
  color: var(--ink);
  background: #fff;
  border-color: var(--line);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 470px;
  gap: 48px;
  align-items: center;
  max-width: 1180px;
  min-height: calc(100vh - 72px);
  margin: 0 auto;
  padding: 72px 32px 84px;
}

.hero-copy h1 {
  max-width: 780px;
  margin: 0;
  color: var(--ink);
  font-size: clamp(38px, 5vw, 64px);
  line-height: 1.02;
  font-weight: 820;
}

.hero-copy p {
  max-width: 650px;
  margin: 26px 0 0;
  color: var(--muted);
  font-size: 19px;
  line-height: 1.65;
}

.hero-actions {
  display: flex;
  gap: 12px;
  margin-top: 32px;
}

.hero-proof {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  max-width: 630px;
  margin: 42px 0 0;
}

.hero-proof div {
  padding: 18px;
  background: var(--soft);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.hero-proof dt {
  color: var(--ink);
  font-size: 24px;
  font-weight: 800;
}

.hero-proof dd {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 13px;
  font-weight: 600;
}

.monitor-card {
  padding: 22px;
  background: #101820;
  border: 1px solid #243240;
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.monitor-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: #c6d2dd;
  font-size: 13px;
  font-weight: 700;
}

.monitor-topbar strong {
  color: #77d69f;
}

.status-grid {
  display: grid;
  gap: 10px;
  margin-top: 18px;
}

.status-grid article {
  display: grid;
  grid-template-columns: 12px 1fr auto;
  gap: 12px;
  align-items: center;
  padding: 14px;
  color: #eaf1f5;
  background: #17232d;
  border: 1px solid #263746;
  border-radius: 8px;
}

.status-grid p {
  margin: 0;
  font-size: 14px;
  font-weight: 650;
}

.status-grid strong {
  color: #8be0aa;
  font-size: 13px;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.dot.ok {
  background: #65d889;
}

.dot.warn {
  background: var(--warn);
}

.chart {
  display: flex;
  align-items: end;
  gap: 8px;
  height: 160px;
  margin-top: 18px;
  padding: 16px;
  background: linear-gradient(180deg, #14212b 0%, #111b23 100%);
  border: 1px solid #263746;
  border-radius: 8px;
}

.chart span {
  flex: 1;
  background: linear-gradient(180deg, #79dfa1 0%, #1d8d5a 100%);
  border-radius: 4px 4px 0 0;
}

.alert-preview {
  margin-top: 18px;
  padding: 16px;
  color: #dce6ee;
  background: rgba(199, 137, 20, 0.16);
  border: 1px solid rgba(199, 137, 20, 0.42);
  border-radius: 8px;
}

.alert-preview span {
  color: #ffd47a;
  font-size: 12px;
  font-weight: 800;
}

.alert-preview p {
  margin: 6px 0 0;
  font-size: 13px;
  line-height: 1.45;
}

.section {
  max-width: 1180px;
  margin: 0 auto;
  padding: 84px 32px;
}

.section-heading {
  max-width: 680px;
  margin-bottom: 34px;
}

h2 {
  margin: 0;
  color: var(--ink);
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.08;
  font-weight: 820;
}

.section-heading p,
.calculator p,
.lead-copy p {
  color: var(--muted);
  font-size: 17px;
  line-height: 1.65;
}

.service-grid,
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.service-card,
.price-card,
.lead-form,
.calc-box {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 16px 38px rgba(16, 32, 44, 0.07);
}

.service-card {
  padding: 26px;
}

.service-card span {
  color: var(--accent);
  font-size: 13px;
  font-weight: 850;
}

.service-card h3,
.price-card h3 {
  margin: 16px 0 10px;
  color: var(--ink);
  font-size: 22px;
}

.service-card p,
.price-card li {
  color: var(--muted);
  line-height: 1.6;
}

.calculator {
  display: grid;
  grid-template-columns: 1fr 430px;
  gap: 44px;
  align-items: center;
  background: var(--soft);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  max-width: none;
  padding-inline: max(32px, calc((100vw - 1180px) / 2 + 32px));
}

.calc-box {
  display: grid;
  gap: 16px;
  padding: 24px;
}

label {
  display: grid;
  gap: 7px;
  color: var(--ink);
  font-size: 13px;
  font-weight: 750;
}

input,
select {
  width: 100%;
  min-height: 44px;
  padding: 0 13px;
  color: var(--ink);
  background: #fff;
  border: 1px solid #cfdbe5;
  border-radius: 8px;
  font: inherit;
  font-size: 14px;
}

input:focus,
select:focus {
  outline: 3px solid rgba(22, 155, 98, 0.16);
  border-color: var(--accent);
}

.calc-result {
  display: block;
  padding-top: 10px;
  color: var(--accent-dark);
  font-size: 34px;
  font-weight: 850;
}

.price-card {
  padding: 28px;
}

.price-card.featured {
  border-color: rgba(22, 155, 98, 0.45);
  box-shadow: 0 24px 70px rgba(22, 155, 98, 0.12);
}

.price {
  margin: 0 0 18px;
  color: var(--ink);
  font-size: 38px;
  font-weight: 850;
}

.price span {
  color: var(--muted);
  font-size: 14px;
}

.price-card ul {
  margin: 0;
  padding-left: 18px;
}

.lead-section {
  display: grid;
  grid-template-columns: 1fr 460px;
  gap: 46px;
  align-items: start;
  max-width: 1180px;
  margin: 0 auto 84px;
  padding: 84px 32px;
  background: #fff;
}

.lead-form {
  display: grid;
  gap: 16px;
  padding: 26px;
}

.form-note {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
}

.form-note.success {
  color: var(--accent-dark);
  font-weight: 750;
}

.footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 28px 48px;
  color: #d7e0e6;
  background: var(--ink);
}

.footer span {
  font-weight: 850;
}

.footer p {
  margin: 0;
  color: #9fb0bd;
  font-size: 13px;
}

@media (max-width: 900px) {
  .site-header {
    padding: 0 20px;
  }

  .nav {
    display: none;
  }

  .hero,
  .calculator,
  .lead-section {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 48px;
  }

  .monitor-card {
    max-width: 520px;
  }

  .service-grid,
  .pricing-grid,
  .hero-proof {
    grid-template-columns: 1fr;
  }

  .footer {
    display: block;
    padding: 26px 24px;
  }

  .footer p {
    margin-top: 8px;
  }
}

@media (max-width: 560px) {
  .header-cta {
    display: none;
  }

  .hero-actions {
    flex-direction: column;
  }

  .hero,
  .section,
  .lead-section {
    padding-inline: 20px;
  }

  .calculator {
    padding-inline: 20px;
  }
}