body {
  margin: 0;
  font-family: 'Sarabun', sans-serif;
  background: #121212;
  color: white;
  display: flex;
  flex-direction: column;
  height: 100vh;
}

.splash-screen {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  flex: 1;
  background: #121212;
  animation: fadein 1s;
}
.logo {
  width: 96px;
  height: 96px;
  margin-bottom: 20px;
}
h1 {
  font-size: 24px;
}

@keyframes fadein {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.input-bar {
  padding: 1rem;
  background: #222;
  display: flex;
  gap: 10px;
}
input {
  flex: 1;
  padding: 10px;
  border-radius: 6px;
  border: none;
  font-size: 16px;
}
button {
  padding: 10px 20px;
  background: #00b894;
  color: white;
  border: none;
  border-radius: 6px;
}
iframe {
  flex: 1;
  border: none;
}
.header {
  padding: 1rem;
  background: #1f1f1f;
  font-weight: bold;
}