:root {
  --bg-1: #c8f2de;
  --bg-2: #a8e1c4;
  --bg-3: #8fd7b8;
  --text: #1f3229;
  --muted: #3d5a4f;
  --card: rgba(255, 255, 255, 0.64);
  --card-strong: rgba(255, 255, 255, 0.84);
  --accent: #f4b400;
  --border: rgba(255, 255, 255, 0.5);
  --space-16: 16px;
  --space-24: 24px;
  --space-32: 32px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Lato", Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 24px 24px, rgba(255, 255, 255, 0.14) 0 11px, transparent 12px 100%),
    radial-gradient(circle at 48px 48px, rgba(255, 255, 255, 0.1) 0 11px, transparent 12px 100%),
    linear-gradient(180deg, var(--bg-1), var(--bg-2) 52%, var(--bg-3));
  background-size: 80px 80px, 80px 80px, auto;
}

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

.page {
  width: min(1200px, calc(100% - 30px));
  margin: 0 auto;
  padding: var(--space-32) 0 var(--space-24);
}

.hero {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: var(--space-24);
}

.hero h1 {
  margin: 0;
  font-size: clamp(1.8rem, 3.5vw, 3.6rem);
  line-height: 1.08;
}

.hero-logo {
  width: min(260px, 38vw);
}

.step {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: var(--space-24);
  margin-bottom: var(--space-16);
}

.step__title {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: var(--space-16);
}

.step__title h2 {
  margin: 0;
  font-size: clamp(1.22rem, 2.35vw, 2rem);
  line-height: 1.15;
}

.badge {
  width: 42px;
  height: 42px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  background: linear-gradient(180deg, #ffd65f, var(--accent));
  color: #503300;
  flex: 0 0 auto;
}

.badge--small {
  width: 34px;
  height: 34px;
  margin-right: 8px;
}

.step__grid {
  display: grid;
  gap: var(--space-24);
  align-items: start;
}

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

.step__grid--send {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

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

.visual-stack {
  display: grid;
  gap: var(--space-16);
}

.visual {
  margin: 0;
  background: var(--card-strong);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 10px;
}

.visual img {
  width: 100%;
  border-radius: 12px;
}

.visual figcaption {
  margin-top: 10px;
  color: var(--muted);
  font-size: 0.98rem;
}

.visual--phone {
  max-width: 360px;
  margin-inline: auto;
}

.visual--console {
  max-width: 360px;
  margin-inline: auto;
}

.info-box,
.note-box {
  background: rgba(33, 84, 68, 0.92);
  border-radius: 16px;
  color: #fff;
  padding: 18px;
  font-size: 1.05rem;
  line-height: 1.35;
}

.note-box {
  margin-top: var(--space-24);
  background: var(--card-strong);
  color: var(--text);
  border: 1px solid var(--border);
}

.footer {
  width: min(1200px, calc(100% - 30px));
  margin: 0 auto 24px;
  background: rgba(18, 44, 36, 0.95);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 16px;
  padding: 14px 16px;
}

.footer__links {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.footer__social,
.footer__promos {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.footer a {
  color: #fff;
  text-decoration: none;
  font-weight: 700;
}

.footer a:hover {
  color: #ffd65f;
}

@media (max-width: 980px) {
  .step__grid--pairing,
  .step__grid--send,
  .step__grid--result {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .page,
  .footer {
    width: min(1200px, calc(100% - 18px));
  }

  .hero {
    flex-direction: column;
    align-items: flex-start;
  }
}