* {
  box-sizing: border-box;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: 'Segoe UI', Tahoma, sans-serif;
  background: #f7f8fa;
  color: #1d232c;
}

.container {
  width: 92%;
  max-width: 1200px;
  margin: 0 auto;
}

header {
  position: sticky;
  top: 0;
  background: #fff;
  z-index: 1000;
  border-bottom: 1px solid #e0e0e0;
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 0 14px 0;
}

.logo {
  max-height: 54px;
}

nav ul {
  list-style: none;
  display: flex;
  gap: 26px;
  margin: 0;
  padding: 0;
}

nav a {
  text-decoration: none;
  color: #004b91;
  font-weight: 600;
  transition: .2s;
  font-size: 1.04em;
}

nav a:hover {
  border-bottom: 2px solid #2bb8c8;
}

.wave-section {
  padding: 60px 0 70px 0;
  margin: 0;
  position: relative;
  overflow: hidden;
  border-radius: 64px;
  margin-bottom: 30px;
  box-shadow: 0 6px 24px 0 rgba(20,50,80,0.04);
  background: #fff;
}

.wave-section.blue {
  background: linear-gradient(120deg, #e7f0fa 20%, #b5e1fa 80%);
}

.wave-section.teal {
  background: linear-gradient(110deg, #e6f9f7 10%, #b4efe5 80%);
}

.wave-section.orange {
  background: linear-gradient(120deg, #fff7ea 10%, #ffddb1 80%);
}

.wave-section.green {
  background: linear-gradient(110deg, #eaf6f0 10%, #b2efdb 90%);
}

.wave-section.cyan {
  background: linear-gradient(120deg, #eafafd 10%, #c0f6fa 90%);
}

.wave-content {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 38px;
}

.wave-content.reverse {
  flex-direction: row-reverse;
}

.wave-number {
  min-width: 90px;
  min-height: 90px;
  border-radius: 100px;
  background: #fff;
  box-shadow: 0 4px 20px rgba(0,0,0,0.03);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.4em;
  font-weight: 800;
  color: #04a8c6;
  margin-right: 12px;
  margin-left: 10px;
}

.wave-section.orange .wave-number { color: #fd9913; }
.wave-section.green .wave-number { color: #099267; }
.wave-section.cyan .wave-number { color: #2bb8c8; }
.wave-section.teal .wave-number { color: #0f9685; }

.wave-section h1, .wave-section h2 {
  margin: 0 0 18px 0;
  font-size: 2em;
  color: #263c6b;
}
.wave-section h3 {
  margin-top: 20px;
  margin-bottom: 8px;
  font-weight: 700;
  color: #009ea8;
}
.wave-section p, .wave-section ul {
  font-size: 1.1em;
  color: #2e3a53;
  margin-bottom: 14px;
}
.wave-section ul {
  padding-left: 20px;
}

.btn {
  background: #009ee3;
  color: white;
  padding: 13px 32px;
  text-decoration: none;
  border-radius: 7px;
  font-size: 1.14em;
  font-weight: 600;
  display: inline-block;
  margin-top: 18px;
  box-shadow: 0 2px 12px rgba(0,60,100,0.08);
  transition: .2s;
}

.btn:hover {
  background: #04a8c6;
}

footer {
  background: #fff;
  text-align: center;
  padding: 32px 0 14px 0;
  font-size: 1em;
  color: #4a5e73;
  margin-top: 30px;
}

/* Анимация */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(40px);
  transition: all 0.9s cubic-bezier(.19,1,.22,1);
}
.animate-on-scroll.visible {
  opacity: 1;
  transform: none;
}

@media (max-width: 1000px) {
  .wave-content, .wave-content.reverse {
    flex-direction: column !important;
    align-items: flex-start;
    gap: 16px;
  }
  .wave-number {
    margin: 0 0 12px 0;
    align-self: flex-start;
  }
}

@media (max-width: 600px) {
  .header-content { flex-direction: column; gap: 8px; }
  .logo { max-height: 40px; }
  nav ul { gap: 16px; }
  .wave-section {
    border-radius: 18px;
    padding: 36px 0 42px 0;
  }
  .wave-number {
    min-width: 54px; min-height: 54px; font-size: 1.3em;
  }
  .wave-section h1, .wave-section h2 { font-size: 1.17em; }
}