body {
  font-family: 'Poppins', sans-serif;
  background: #e9f0f5;
  color: #1f2428;
  margin: 0;
  padding: 20px;
}

main {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

header {
  background: #ffffff;
  padding: 20px;
  border-radius: 16px;
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.06);
}

header h1 {
  margin: 6px 0;
  font-size: 2.4rem;
}

header .lede {
  color: #4d5a65;
  margin: 0;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 1px;
  font-size: 0.8rem;
  color: #5ca0d3;
  margin: 0;
}

.card {
  background: #ffffff;
  border-radius: 16px;
  padding: 18px;
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.06);
}

.card-header {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  margin-bottom: 12px;
}

.card-header h2 {
  margin: 2px 0 4px;
}

.card-header .meta {
  margin: 0;
}

label {
  font-weight: 600;
  display: block;
  margin-bottom: 6px;
}

.input-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

input[type="password"],
textarea,
select {
  border-radius: 10px;
  border: 1px solid #d5dce4;
  padding: 10px 12px;
  font-size: 1rem;
  font-family: 'Poppins', sans-serif;
  width: 100%;
  box-sizing: border-box;
  color: #1f2428;
  background: #fbfdff;
}

textarea {
  resize: vertical;
  min-height: 120px;
}

button {
  border: none;
  border-radius: 10px;
  padding: 10px 16px;
  font-weight: 700;
  cursor: pointer;
  font-size: 1rem;
  transition: all 0.2s ease;
}

button.primary {
  background: #66c2b0;
  color: #ffffff;
}

button.primary:hover {
  background: #5ca0d3;
}

button.ghost {
  background: #eef3f7;
  color: #1f2428;
}

button.ghost:hover {
  background: #dfe9f2;
}

.select-group {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
}

.output {
  min-height: 120px;
  background: #f6f8fb;
  border: 1px solid #e0e7f0;
  border-radius: 12px;
  padding: 12px;
  color: #1f2428;
  white-space: pre-wrap;
}

#history {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

#history li {
  border: 1px solid #e0e7f0;
  border-radius: 12px;
  padding: 12px;
  background: #fbfdff;
}

#history .meta {
  color: #6c7681;
  margin-top: 6px;
  font-size: 0.9rem;
}

.grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

iframe {
  width: 100%;
  min-height: 300px;
  border: 1px solid #e0e7f0;
  border-radius: 12px;
  background: #ffffff;
}

.meta {
  color: #6c7681;
  margin-top: 4px;
}

@media (min-width: 960px) {
  .grid {
    grid-template-columns: 1fr 1fr;
  }
}