:root {
  --bg: #f4f7fb;
  --surface: #ffffff;
  --dark: #0f151a;
  --text: #1f2a33;
  --muted: #4f5f6a;
  --accent: #11a9b5;
  --accent-strong: #0a8a94;
  --max-width: 1080px;
  --shadow: 0 12px 34px rgba(0, 0, 0, 0.08);
  --radius: 14px;
  --radius-sm: 9px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
}

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

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover,
a:focus {
  color: var(--accent-strong);
}

h1,
h2,
h3 {
  margin: 0 0 0.4em 0;
  line-height: 1.2;
  color: var(--text);
}

p {
  margin: 0 0 1em 0;
  color: var(--muted);
}

.hero {
  background: linear-gradient(135deg, rgba(17, 169, 181, 0.18), rgba(17, 169, 181, 0.04)), #eaf7fa;
  padding: 56px 20px 48px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.04);
}

.hero__brand {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  gap: 28px;
  align-items: center;
}

.hero__logo {
  width: 210px;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow);
  background: #fff;
  padding: 10px;
}

.hero__text h1 {
  font-size: clamp(28px, 4vw, 36px);
}

.hero__tag {
  color: var(--accent-strong);
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  font-size: 14px;
  margin-bottom: 8px;
}

.hero__lead {
  color: var(--text);
  max-width: 760px;
}

.hero__cta {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 16px;
}

.section {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 48px 20px;
}

.section--muted {
  background: #e9f3f7;
  border-top: 1px solid rgba(0, 0, 0, 0.04);
  border-bottom: 1px solid rgba(0, 0, 0, 0.04);
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px;
  margin-top: 20px;
}

.card {
  background: var(--surface);
  border: 1px solid rgba(0, 0, 0, 0.04);
  border-radius: var(--radius);
  padding: 18px 18px 14px;
  box-shadow: var(--shadow);
}

.card h3 {
  color: var(--accent-strong);
  font-size: 18px;
  margin-bottom: 10px;
}

.card ul {
  padding-left: 18px;
  margin: 0;
  color: var(--muted);
}

.card li + li {
  margin-top: 6px;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.tag {
  background: rgba(17, 169, 181, 0.18);
  color: var(--accent-strong);
  border: 1px solid rgba(17, 169, 181, 0.32);
  border-radius: var(--radius-sm);
  padding: 6px 10px;
  font-weight: 600;
  font-size: 14px;
}

.muted {
  color: var(--muted);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 18px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  transition: transform 0.12s ease, box-shadow 0.12s ease, background 0.2s ease;
  border: 1px solid transparent;
  cursor: pointer;
}

.btn--primary {
  background: var(--accent);
  color: #0a1117;
  border-color: var(--accent);
  box-shadow: var(--shadow);
}

.btn--primary:hover,
.btn--primary:focus {
  background: var(--accent-strong);
  transform: translateY(-1px);
}

.btn--ghost {
  background: var(--surface);
  color: var(--text);
  border-color: rgba(0, 0, 0, 0.08);
}

.btn--ghost:hover,
.btn--ghost:focus {
  border-color: var(--accent);
  color: var(--accent-strong);
}

.footer {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 44px 20px 60px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 18px;
  border-top: 1px solid rgba(0, 0, 0, 0.06);
}

.footer p {
  margin: 4px 0;
  color: var(--muted);
}

.footer__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

@media (max-width: 640px) {
  .hero__brand {
    text-align: left;
  }

  .hero__logo {
    width: 180px;
  }

  .footer {
    flex-direction: column;
  }
}