* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, sans-serif;
  background: linear-gradient(135deg,#eef2ff,#f5f3ff);
  color: #111;
  overflow-x: hidden;
}

/* =========================
   NAVBAR
========================= */
.site-header {
  background: #ffffff;
  border-bottom: 1px solid #e5e7eb;
}

.navbar {
  max-width: 1100px;
  margin: auto;
  padding: 14px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
}

.logo {
  font-weight: 700;
  text-decoration: none;
  color: #111;
  font-size: 18px;
}

.logo span {
  color: #6366f1;
}

.nav-list {
  list-style: none;
  display: flex;
  gap: 14px;
  margin: 0;
  padding: 0;
  flex-wrap: wrap;
}

.nav-list a {
  text-decoration: none;
  color: #111;
  font-size: 14px;
}

.btn-primary {
  background: #6366f1;
  color: white;
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 14px;
}

/* =========================
   HERO
========================= */
.hero {
  text-align: center;
  padding: 60px 16px;
}

.hero h1 {
  font-size: 28px;
  line-height: 1.3;
}

.hero span {
  color: #6366f1;
}

.hero p {
  font-size: 15px;
  max-width: 500px;
  margin: auto;
}

.cta-btn {
  display: inline-block;
  margin-top: 18px;
  padding: 13px 22px;
  background: #111;
  color: #fff;
  text-decoration: none;
  border-radius: 10px;
  font-weight: 600;
}

/* =========================
   FEATURES
========================= */
.features {
  max-width: 1100px;
  margin: auto;
  padding: 20px 16px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.feature {
  background: #fff;
  padding: 22px;
  border-radius: 14px;
  text-align: center;
  border: 1px solid #e5e7eb;
  box-shadow: 0 8px 20px rgba(0,0,0,0.05);
}

/* =========================
   HOW SECTION
========================= */
.how {
  max-width: 700px;
  margin: 40px auto;
  text-align: center;
  padding: 0 16px;
}

/* =========================
   FOOTER
========================= */
.site-footer {
  background: #111827;
  padding: 30px 16px;
  text-align: center;
}

.footer-copy {
  color: #fff;
  font-size: 14px;
  margin-bottom: 12px;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}

.footer-links a {
  color: #fff;
  text-decoration: underline;
  font-size: 14px;
}

/* =========================
   TABLET
========================= */
@media (min-width: 768px) {

  .hero h1 {
    font-size: 36px;
  }

  .hero p {
    font-size: 17px;
  }

  .features {
    grid-template-columns: repeat(2, 1fr);
  }

  .navbar {
    padding: 16px 20px;
  }
}

/* =========================
   DESKTOP
========================= */
@media (min-width: 1024px) {

  .features {
    grid-template-columns: repeat(3, 1fr);
  }

  .hero {
    padding: 90px 20px;
  }

  .hero h1 {
    font-size: 44px;
  }
}