:root {
  --primary: #0b6b69;
  --primary-dark: #074e4c;
  --accent: #59c3b3;
  --text: #102027;
  --muted: #63757d;
  --light: #f4fbfa;
  --white: #ffffff;
  --border: #dcebea;
  --shadow: 0 24px 60px rgba(9, 64, 62, 0.12);
  --radius: 20px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--text);
  background: var(--white);
  line-height: 1.6;
}

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

.container {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

/* Header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.logo-mark {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: var(--white);
  display: grid;
  place-items: center;
  font-size: 22px;
  font-weight: 800;
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.logo-text strong {
  font-size: 17px;
  letter-spacing: 0.08em;
}

.logo-text small {
  color: var(--muted);
  font-size: 11px;
  letter-spacing: 0.18em;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  color: var(--muted);
  font-size: 15px;
}

.site-nav a:hover {
  color: var(--primary);
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--white);
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text);
  margin: 5px auto;
}

/* Hero */

.hero {
  padding: 96px 0;
  background:
    radial-gradient(circle at top right, rgba(89, 195, 179, 0.26), transparent 32%),
    linear-gradient(180deg, #f6fffe 0%, #ffffff 100%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 56px;
  align-items: center;
}

.eyebrow,
.section-label {
  color: var(--primary);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 13px;
}

.hero h1 {
  margin: 14px 0 20px;
  max-width: 680px;
  font-size: clamp(42px, 6vw, 68px);
  line-height: 1.04;
  letter-spacing: -0.04em;
}

.hero-text {
  max-width: 620px;
  color: var(--muted);
  font-size: 18px;
}

.hero-actions {
  margin-top: 34px;
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 999px;
  font-weight: 700;
  transition: 0.2s ease;
}

.btn-primary {
  color: var(--white);
  background: var(--primary);
}

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
}

.btn-secondary {
  color: var(--primary);
  background: var(--white);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.hero-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 28px;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.hero-card-top {
  padding: 18px 22px;
  color: var(--white);
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.16em;
}

.hero-card-body {
  padding: 34px;
}

.hero-card-body h2 {
  margin: 0 0 14px;
  font-size: 28px;
}

.hero-card-body p {
  color: var(--muted);
}

.hero-card-body ul {
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.hero-card-body li {
  padding: 12px 0;
  border-top: 1px solid var(--border);
}

.hero-card-body li::before {
  content: "✓";
  color: var(--primary);
  font-weight: 800;
  margin-right: 10px;
}

/* Sections */

.section {
  padding: 88px 0;
}

.section-light {
  background: var(--light);
}

.two-column {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 56px;
}

.section h2 {
  margin: 8px 0 0;
  font-size: clamp(30px, 4vw, 44px);
  line-height: 1.15;
  letter-spacing: -0.03em;
}

.two-column p,
.section-heading p,
.contact-section p {
  color: var(--muted);
  font-size: 17px;
}

.section-heading {
  max-width: 720px;
  margin-bottom: 40px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.card {
  padding: 30px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--white);
}

.card-icon {
  width: 48px;
  height: 48px;
  border-radius: 16px;
  background: var(--light);
  color: var(--primary);
  display: grid;
  place-items: center;
  font-weight: 800;
  margin-bottom: 22px;
}

.card h3 {
  margin: 0 0 12px;
  font-size: 22px;
}

.card p {
  margin: 0;
  color: var(--muted);
}

/* Quality */

.quality-box {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 46px;
  padding: 46px;
  border-radius: 28px;
  background: linear-gradient(135deg, #073f3d, #0b6b69);
  color: var(--white);
}

.quality-box .section-label {
  color: #9be3da;
}

.quality-list {
  display: grid;
  gap: 16px;
}

.quality-list div {
  padding: 18px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.1);
}

.quality-list strong {
  display: block;
  margin-bottom: 4px;
}

.quality-list span {
  color: rgba(255, 255, 255, 0.78);
}

/* Contact */

.contact-section {
  background: #ffffff;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 0.9fr;
  gap: 48px;
  align-items: start;
}

.contact-card {
  padding: 30px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--light);
}

.contact-card p {
  margin: 0 0 12px;
}

/* Footer */

.site-footer {
  padding: 28px 0;
  color: var(--muted);
  border-top: 1px solid var(--border);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  font-size: 14px;
}

.footer-inner p {
  margin: 0;
}

.footer-inner a {
  color: var(--primary);
}

/* Mobile */

@media (max-width: 860px) {
  .nav-toggle {
    display: block;
  }

  .site-nav {
    position: absolute;
    top: 76px;
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 14px 20px 24px;
    background: var(--white);
    border-bottom: 1px solid var(--border);
  }

  .site-nav.active {
    display: flex;
  }

  .site-nav a {
    width: 100%;
    padding: 14px 0;
  }

  .hero {
    padding: 68px 0;
  }

  .hero-grid,
  .two-column,
  .quality-box,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .cards {
    grid-template-columns: 1fr;
  }

  .quality-box {
    padding: 30px;
  }

  .footer-inner {
    flex-direction: column;
  }
}

@media (max-width: 520px) {
  .container {
    width: min(100% - 28px, 1120px);
  }

  .header-inner {
    height: 68px;
  }

  .site-nav {
    top: 68px;
  }

  .logo-text strong {
    font-size: 14px;
  }

  .logo-text small {
    font-size: 10px;
  }

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

  .btn {
    width: 100%;
  }

  .hero-card-body {
    padding: 24px;
  }

  .section {
    padding: 64px 0;
  }
}