* { box-sizing: border-box; }

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

.container {
  max-width: 1080px;
  margin: auto;
  padding: 48px 22px;
}

.hero { padding: 60px 0; }

h1 {
  font-size: 46px;
  line-height: 1.05;
  margin-bottom: 18px;
}

h2 {
  font-size: 28px;
  margin-top: 48px;
}

p {
  font-size: 18px;
  color: #cbd5e1;
  line-height: 1.6;
}

.button {
  display: inline-block;
  background: #38bdf8;
  color: #0f172a;
  padding: 14px 22px;
  border-radius: 10px;
  text-decoration: none;
  font-weight: bold;
  margin-top: 16px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
  margin-top: 25px;
}

.card {
  background: #1e293b;
  padding: 24px;
  border-radius: 16px;
  border: 1px solid #334155;
}

.small {
  font-size: 14px;
  color: #94a3b8;
}

.demo-section {
  margin-top: 70px;
  padding-top: 35px;
  border-top: 1px solid #334155;
}

.phone {
  max-width: 430px;
  margin: 30px auto;
  background: #000;
  border-radius: 32px;
  padding: 18px;
  border: 1px solid #374151;
}

.screen {
  background: #111827;
  border-radius: 24px;
  min-height: 620px;
  padding: 18px;
  display: flex;
  flex-direction: column;
}

.top {
  border-bottom: 1px solid #374151;
  padding-bottom: 12px;
  margin-bottom: 12px;
  font-weight: bold;
}

.chat {
  flex: 1;
  overflow-y: auto;
}

.msg {
  padding: 11px 14px;
  border-radius: 18px;
  margin: 10px 0;
  max-width: 85%;
  line-height: 1.4;
  font-size: 15px;
}

.bot {
  background: #1f2937;
  color: #f9fafb;
}

.user {
  background: #2563eb;
  color: white;
  margin-left: auto;
}

.input {
  display: flex;
  gap: 8px;
  margin-top: 12px;
}

input {
  flex: 1;
  padding: 12px;
  border-radius: 999px;
  border: 1px solid #374151;
  background: #030712;
  color: white;
}

button {
  border: none;
  border-radius: 999px;
  padding: 12px 16px;
  background: #38bdf8;
  color: #082f49;
  font-weight: bold;
  cursor: pointer;
}

.quick {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.quick button {
  background: #374151;
  color: #f9fafb;
  font-size: 13px;
}

.leadbox {
  margin-top: 24px;
  background: #1f2937;
  border: 1px solid #374151;
  border-radius: 16px;
  padding: 18px;
}

pre {
  white-space: pre-wrap;
  color: #d1d5db;
}