* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  font-family: Arial, Helvetica, sans-serif;
  background: #f4f4f5;
  color: #111827;
}

.page {
  min-height: 100vh;
  padding: 32px 16px;
  display: flex;
  justify-content: center;
  align-items: flex-start;
}

.card {
  width: 100%;
  max-width: 1100px;
  background: #ffffff;
  border-radius: 18px;
  box-shadow: 0 18px 45px rgba(15, 23, 42, 0.08);
  overflow: hidden;
}

.header {
  padding: 28px 28px 16px;
  text-align: center;
}

.badge {
  display: inline-flex;
  margin-bottom: 12px;
  padding: 6px 12px;
  border-radius: 999px;
  background: #111827;
  color: white;
  font-size: 13px;
  font-weight: 700;
}

h1 {
  margin: 0 0 8px;
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.1;
}

p {
  margin: 0;
  color: #4b5563;
  font-size: 16px;
}

.booker-frame {
  width: 100%;
  min-height: 820px;
}

.booker-frame iframe {
  display: block;
  width: 100%;
  height: 820px;
  border: 0;
  background: #ffffff;
}

@media (max-width: 640px) {
  .page {
    padding: 0;
  }

  .card {
    border-radius: 0;
    box-shadow: none;
  }

  .header {
    padding: 22px 16px 12px;
  }

  .booker-frame,
  .booker-frame iframe {
    height: 780px;
    min-height: 780px;
  }
}