* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background:
    radial-gradient(circle at top left, #17324a, transparent 30%),
    linear-gradient(135deg, #05070a, #0b1118 55%, #020305);
  color: #ffffff;
}

.page {
  min-height: 100vh;
  padding: 40px 24px;
}

.hero {
  max-width: 1180px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 34px;
  align-items: center;
}

.badge {
  display: inline-block;
  padding: 8px 14px;
  border: 1px solid rgba(255,255,255,0.16);
  border-radius: 999px;
  color: #8ed7ff;
  background: rgba(255,255,255,0.06);
  font-size: 14px;
}

h1 {
  font-size: 76px;
  margin: 18px 0 6px;
  letter-spacing: -2px;
}

.subtitle {
  font-size: 24px;
  color: #d7e7f3;
  max-width: 620px;
}

.info-grid {
  margin-top: 28px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.card {
  min-height: 160px;
  padding: 20px;
  border-radius: 18px;
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.10);
  box-shadow: 0 18px 50px rgba(0,0,0,0.28);
}

.card h3 {
  margin: 0 0 10px;
  color: #ffffff;
}

.card p {
  margin: 0;
  color: #b8c7d3;
  line-height: 1.45;
}

.chat-panel {
  background: rgba(10, 12, 16, 0.94);
  border: 1px solid rgba(255,255,255,0.10);
  border-radius: 24px;
  padding: 22px;
  box-shadow: 0 24px 80px rgba(0,0,0,0.55);
}

.chat-header {
  display: flex;
  gap: 14px;
  align-items: center;
  margin-bottom: 18px;
}

.avatar {
  width: 74px;
  height: 74px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid rgba(255,255,255,0.75);
}

.chat-header h2 {
  margin: 0;
  font-size: 30px;
}

.chat-header p {
  margin: 4px 0 0;
  color: #a9b8c4;
}

.chatlog {
  height: 430px;
  overflow-y: auto;
  padding: 16px;
  border-radius: 18px;
  background: #07090c;
  border: 1px solid rgba(255,255,255,0.09);
  line-height: 1.45;
}

.user-msg,
.bot-msg {
  margin-bottom: 14px;
  white-space: pre-wrap;
}

.user-msg {
  color: #ffffff;
}

.bot-msg {
  color: #d7ecff;
}

.input-row {
  display: flex;
  gap: 10px;
  margin-top: 14px;
}

input {
  flex: 1;
  padding: 15px;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,0.12);
  background: #ffffff;
  color: #111;
  font-size: 16px;
  outline: none;
}

button {
  padding: 0 22px;
  border-radius: 14px;
  border: none;
  background: linear-gradient(135deg, #00aaff, #0066ff);
  color: #fff;
  font-weight: bold;
  cursor: pointer;
}

button:hover {
  filter: brightness(1.08);
}

.notice {
  margin-top: 10px;
  color: #7f8b96;
  font-size: 12px;
  text-align: center;
}

@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
  }

  h1 {
    font-size: 52px;
  }

  .info-grid {
    grid-template-columns: 1fr;
  }

  .chatlog {
    height: 360px;
  }
}