* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: #f8fafc;
  color: #0f172a;
}

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

.navbar {
  width: 100%;
  padding: 18px 7%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: white;
  border-bottom: 1px solid #e2e8f0;
  position: sticky;
  top: 0;
  z-index: 10;
}

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

.logo {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  background: #2563eb;
  color: white;
  display: grid;
  place-items: center;
  font-weight: 800;
}

.brand span {
  display: block;
  color: #64748b;
  font-size: 13px;
}

nav {
  display: flex;
  gap: 22px;
  color: #334155;
  font-weight: 600;
}

.hero {
  padding: 80px 7%;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 50px;
  align-items: center;
  background: linear-gradient(135deg, #eff6ff, #f8fafc);
}

.badge {
  display: inline-block;
  padding: 8px 14px;
  border-radius: 999px;
  background: #dbeafe;
  color: #1d4ed8;
  font-weight: 700;
  font-size: 14px;
  margin-bottom: 18px;
}

h1 {
  font-size: clamp(38px, 6vw, 64px);
  line-height: 1.02;
  margin: 0 0 22px;
}

h2 {
  font-size: clamp(30px, 4vw, 44px);
  margin: 0 0 16px;
}

h3 {
  margin: 0 0 10px;
}

.hero p,
.section-text,
.dark p,
.contact p {
  font-size: 18px;
  line-height: 1.6;
  color: #475569;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 28px;
}

.btn {
  padding: 14px 20px;
  border-radius: 14px;
  font-weight: 800;
}

.primary {
  background: #2563eb;
  color: white;
}

.secondary {
  background: white;
  color: #2563eb;
  border: 1px solid #bfdbfe;
}

.hero-card {
  background: white;
  border-radius: 28px;
  padding: 24px;
  box-shadow: 0 20px 60px rgba(15, 23, 42, 0.12);
}

.chat {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.msg {
  padding: 14px 16px;
  border-radius: 16px;
  max-width: 85%;
  line-height: 1.4;
}

.bot {
  background: #e0f2fe;
  align-self: flex-start;
}

.user {
  background: #2563eb;
  color: white;
  align-self: flex-end;
}

.section {
  padding: 80px 7%;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  margin-top: 36px;
}

.card,
.step {
  background: white;
  padding: 28px;
  border-radius: 22px;
  border: 1px solid #e2e8f0;
}

.card p,
.step p {
  color: #64748b;
  line-height: 1.5;
}

.dark {
  background: #0f172a;
  color: white;
}

.dark p {
  color: #cbd5e1;
}

.split {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 40px;
  align-items: start;
}

.features {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 14px;
}

.features li {
  background: rgba(255,255,255,0.08);
  padding: 16px;
  border-radius: 14px;
}

.features li::before {
  content: "✓ ";
  color: #38bdf8;
  font-weight: 900;
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  margin-top: 36px;
}

.step span {
  width: 42px;
  height: 42px;
  background: #2563eb;
  color: white;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-weight: 900;
  margin-bottom: 16px;
}

.contact {
  padding: 80px 7%;
  background: #dbeafe;
  text-align: center;
}

.contact-box {
  max-width: 560px;
  margin: 28px auto 0;
  background: white;
  border-radius: 22px;
  padding: 28px;
  text-align: left;
}

.contact-box a {
  color: #2563eb;
  font-weight: 700;
}

footer {
  padding: 28px 7%;
  background: #020617;
  color: #cbd5e1;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

footer a {
  margin-left: 18px;
  color: white;
}

@media (max-width: 850px) {
  .navbar {
    align-items: flex-start;
    gap: 14px;
  }

  nav {
    display: none;
  }

  .hero,
  .split,
  .grid,
  .steps {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 50px;
  }

  footer a {
    margin-left: 0;
    margin-right: 14px;
  }
}