* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: #f8fafc;
  color: #1e293b;
  line-height: 1.6;
}

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

.site-header {
  background: rgba(255,255,255,0.95);
  border-bottom: 1px solid #e2e8f0;
  position: sticky;
  top: 0;
}

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

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: #0f172a;
}

.main-nav a {
  margin-left: 18px;
  text-decoration: none;
  color: #334155;
}

.hero {
  padding: 90px 0;
  text-align: center;
  background: linear-gradient(#ffffff,#edf6fb);
}

.hero h1 {
  font-size: 2.4rem;
  margin-bottom: 15px;
}

.hero-text {
  max-width: 760px;
  margin: auto;
}

.btn {
  display: inline-block;
  padding: 12px 22px;
  border-radius: 10px;
  background: #0f766e;
  color: white;
  text-decoration: none;
  margin: 10px;
}

.btn-outline {
  background: white;
  border: 1px solid #0f766e;
  color: #0f766e;
}

.features {
  padding: 70px 0;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3,1fr);
  gap: 25px;
}

.card {
  background: white;
  border-radius: 12px;
  padding: 25px;
  box-shadow: 0 4px 15px rgba(0,0,0,0.05);
}

.section-title {
  text-align: center;
  margin-bottom: 40px;
}

.how-it-works {
  padding: 70px 0;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4,1fr);
  gap: 20px;
}

.step-card {
  text-align: center;
}

.step-number {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: #0f766e;
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: auto;
  margin-bottom: 15px;
}

.languages {
  padding: 70px 0;
}

.language-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
}

.language-list span {
  background: #ecfeff;
  border: 1px solid #67e8f9;
  padding: 8px 12px;
  border-radius: 20px;
}

.pricing-preview {
  padding: 70px 0;
}

.pricing-box {
  display: flex;
  justify-content: space-between;
  background: white;
  border-radius: 12px;
  padding: 35px;
}

.price-main {
  font-size: 2rem;
  font-weight: bold;
}

.cta {
  text-align: center;
  padding: 70px 0;
  background: linear-gradient(#ecfeff,#cffafe);
}

.site-footer {
  background: #0f172a;
  color: white;
  padding: 25px 0;
}

.footer-flex {
  display: flex;
  justify-content: space-between;
}