@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;600&display=swap');

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Inter', sans-serif;
}

body {
  background: #0f172a;
  color: #e2e8f0;
  display: flex;
  flex-direction: column;
  align-items: center;
  min-height: 100vh;
  padding: 2rem;
}

header {
  text-align: center;
  margin-bottom: 2rem;
}

.logo {
  width: 70px;
  height: 70px;
  border-radius: 50%;
  margin-bottom: 0.5rem;
  box-shadow: 0 0 10px #38bdf8;
}

header h1 {
  color: #38bdf8;
}

main {
  width: 90%;
  max-width: 900px;
  background: #1e293b;
  border-radius: 16px;
  padding: 1.5rem;
  box-shadow: 0 4px 30px rgba(0,0,0,0.3);
}

textarea {
  width: 100%;
  height: 220px;
  background: #0f172a;
  color: #f8fafc;
  border: 1px solid #334155;
  border-radius: 10px;
  padding: 1rem;
  font-size: 14px;
  resize: none;
}

.buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 1rem;
}

button {
  background: #38bdf8;
  border: none;
  border-radius: 8px;
  padding: 0.6rem 1.2rem;
  cursor: pointer;
  color: #0f172a;
  font-weight: 600;
  transition: 0.3s;
}

button:hover {
  background: #0ea5e9;
  transform: scale(1.05);
}

.output, .markdown, .tips {
  margin-top: 2rem;
  background: #0f172a;
  padding: 1rem;
  border-radius: 10px;
  border: 1px solid #334155;
}

pre {
  color: #a5f3fc;
  overflow-x: auto;
  white-space: pre-wrap;
}

ul {
  list-style-type: disc;
  padding-left: 1.5rem;
  color: #94a3b8;
}

footer {
  margin-top: 2rem;
  text-align: center;
  font-size: 0.85rem;
  color: #94a3b8;
}