:root {
  --accent-green: #34c659;
  --accent-blue: #32ade6;
  --bg-white: #ffffff;
  --text-main: #15202b;
  --text-muted: #586174;
  --card-bg: #f5fbff;
  --line-soft: #dcecf5;
  --shadow-soft: 0 14px 36px rgba(21, 32, 43, 0.09);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  font-family: "Inter", "Segoe UI", Arial, sans-serif;
  color: var(--text-main);
  background: var(--bg-white);
  scroll-behavior: smooth;
}

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

img {
  max-width: 100%;
  display: block;
}

figure {
  margin: 0;
}

.container {
  width: min(1120px, 92%);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(9px);
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid var(--line-soft);
}

.header-inner {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.brand-dot {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: linear-gradient(140deg, var(--accent-green), var(--accent-blue));
  box-shadow: 0 0 0 5px rgba(50, 173, 230, 0.08);
}

.nav {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav a {
  font-size: 0.95rem;
  color: var(--text-muted);
  transition: 0.2s ease;
}

.nav a:hover,
.nav a:focus-visible {
  color: var(--text-main);
}

.btn-main {
  border: none;
  border-radius: 999px;
  padding: 11px 18px;
  font-weight: 600;
  cursor: pointer;
  background: linear-gradient(135deg, var(--accent-green), var(--accent-blue));
  color: #ffffff;
}

.hero {
  position: relative;
  overflow: hidden;
  padding: 72px 0 56px;
}

.hero::before,
.hero::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  z-index: -1;
}

.hero::before {
  width: 430px;
  height: 430px;
  right: -180px;
  top: -120px;
  background: radial-gradient(circle at center, rgba(52, 198, 89, 0.22), transparent 70%);
}

.hero::after {
  width: 520px;
  height: 520px;
  left: -220px;
  bottom: -250px;
  background: radial-gradient(circle at center, rgba(50, 173, 230, 0.2), transparent 70%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 34px;
  align-items: center;
}

.hero-copy {
  max-width: 700px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 7px 13px;
  border-radius: 999px;
  font-size: 0.82rem;
  color: #1a7e38;
  background: rgba(52, 198, 89, 0.11);
}

h1 {
  margin: 16px 0 10px;
  font-size: clamp(2rem, 3.3vw, 3.35rem);
  line-height: 1.08;
}

.subtitle {
  margin: 0;
  color: var(--accent-blue);
  font-size: 1.04rem;
  font-weight: 600;
}

.lead {
  margin: 18px 0 25px;
  line-height: 1.68;
  color: var(--text-muted);
  max-width: 65ch;
}

.keywords {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.keywords span {
  border-radius: 999px;
  border: 1px solid var(--line-soft);
  background: #ffffff;
  padding: 7px 12px;
  font-size: 0.82rem;
  color: var(--text-muted);
}

.pulse-board {
  position: relative;
  padding: 22px;
  border-radius: 26px;
  background: linear-gradient(155deg, rgba(50, 173, 230, 0.12), rgba(52, 198, 89, 0.13));
  box-shadow: var(--shadow-soft);
}

.pulse-title {
  margin: 0 0 16px;
  font-size: 0.95rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.pulse-svg {
  width: 100%;
  height: auto;
}

.screens {
  margin: 46px 0 10px;
  text-align: center;
  width: min(980px, 92%);
  margin-left: auto;
  margin-right: auto;
}

.section-title {
  margin: 0 0 8px;
  font-size: clamp(1.35rem, 2.5vw, 2rem);
}

.section-text {
  margin: 0 0 20px;
  color: var(--text-muted);
  line-height: 1.65;
}

.section-head {
  max-width: 760px;
  margin: 0 auto 24px;
  text-align: center;
}

.phone-wall {
  display: grid;
  grid-template-columns: repeat(3, minmax(170px, 1fr));
  gap: 16px;
  max-width: 980px;
  margin: 0 auto;
}

.phone-frame {
  border-radius: 26px;
  overflow: hidden;
  background: linear-gradient(180deg, #eff8fd, #ffffff);
  border: 1px solid var(--line-soft);
  box-shadow: var(--shadow-soft);
  padding: 12px;
}

.phone-frame img {
  border-radius: 19px;
  aspect-ratio: 9 / 19.5;
  object-fit: cover;
  width: 100%;
}

.note {
  margin-top: 14px;
  font-size: 0.85rem;
  color: var(--text-muted);
  max-width: 760px;
  margin-left: auto;
  margin-right: auto;
}

.features {
  margin: 56px 0;
  text-align: center;
  width: min(980px, 92%);
  margin-left: auto;
  margin-right: auto;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(220px, 1fr));
  gap: 16px;
  max-width: 980px;
  margin: 0 auto;
}

.feature {
  border-radius: 22px;
  border: 1px solid var(--line-soft);
  background: var(--card-bg);
  padding: 18px;
}

.feature h3 {
  margin: 0 0 8px;
  font-size: 1.03rem;
}

.feature p {
  margin: 0;
  color: var(--text-muted);
  line-height: 1.55;
}

.feature-track {
  margin-top: 12px;
  height: 7px;
  border-radius: 999px;
  background: #eaf3f8;
  overflow: hidden;
}

.feature-track i {
  display: block;
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent-green), var(--accent-blue));
}

.split {
  margin: 62px 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  max-width: 980px;
  text-align: center;
  width: min(980px, 92%);
  margin-left: auto;
  margin-right: auto;
}

.card {
  border-radius: 22px;
  border: 1px solid var(--line-soft);
  padding: 20px;
  background: #ffffff;
}

.card h2 {
  margin: 0 0 10px;
  font-size: 1.25rem;
}

.card p {
  margin: 0 0 10px;
  color: var(--text-muted);
  line-height: 1.62;
}

.card ul {
  margin: 0 auto;
  padding-left: 18px;
  color: var(--text-muted);
  text-align: left;
  max-width: 420px;
}

.footer {
  margin-top: 55px;
  border-top: 1px solid var(--line-soft);
  padding: 25px 0 32px;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.doc-page {
  padding: 48px 0 74px;
}

.doc-shell {
  max-width: 840px;
  margin: 0 auto;
  border-radius: 24px;
  border: 1px solid var(--line-soft);
  padding: 28px;
  background: #ffffff;
  box-shadow: var(--shadow-soft);
}

.doc-shell h1 {
  margin-top: 0;
  font-size: clamp(1.8rem, 3vw, 2.45rem);
}

.doc-shell h2 {
  margin-top: 30px;
  font-size: 1.2rem;
}

.doc-shell p,
.doc-shell li {
  color: var(--text-muted);
  line-height: 1.7;
}

.doc-shell ul {
  padding-left: 18px;
}

.back {
  display: inline-flex;
  margin-top: 26px;
  color: var(--accent-blue);
  font-weight: 600;
}

.contact-grid {
  margin-top: 16px;
  display: grid;
  grid-template-columns: repeat(2, minmax(230px, 1fr));
  gap: 16px;
}

.contact-item {
  border: 1px solid var(--line-soft);
  border-radius: 16px;
  padding: 15px;
  background: var(--card-bg);
}

.contact-item small {
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.contact-item p {
  margin: 6px 0 0;
  font-size: 1.04rem;
  color: var(--text-main);
}

.contact-form {
  margin-top: 22px;
  display: grid;
  gap: 12px;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  border: 1px solid var(--line-soft);
  border-radius: 12px;
  padding: 12px;
  font: inherit;
}

.contact-form textarea {
  min-height: 140px;
  resize: vertical;
}

@media (max-width: 920px) {
  .hero-grid,
  .split {
    grid-template-columns: 1fr;
  }

  .hero-copy {
    margin: 0 auto;
    text-align: center;
  }

  .keywords {
    justify-content: center;
  }

  .pulse-board {
    max-width: 760px;
    margin: 0 auto;
  }

  .phone-wall {
    grid-template-columns: repeat(3, minmax(120px, 1fr));
    max-width: 740px;
  }
}

@media (max-width: 680px) {
  .header-inner {
    min-height: 66px;
    justify-content: center;
    text-align: center;
    gap: 10px;
  }

  .nav {
    gap: 13px;
    justify-content: center;
  }

  .footer-inner {
    justify-content: center;
    text-align: center;
  }

  .phone-wall,
  .feature-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .screens,
  .features,
  .split,
  .phone-wall,
  .feature-grid {
    max-width: 420px;
    margin-left: auto;
    margin-right: auto;
  }

  .hero {
    padding-top: 48px;
  }
}