:root {
  --bg: #f4efe8;
  --card: #fffaf3;
  --ink: #1e1c1a;
  --muted: #5d554d;
  --accent: #b95c2f;
  --accent-strong: #8f401d;
  --border: #dfd1bf;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Pretendard", "Noto Sans KR", system-ui, sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 20% 10%, #f8e5ca 0%, transparent 25%),
    radial-gradient(circle at 90% 90%, #ead8c4 0%, transparent 25%),
    var(--bg);
}

.container {
  width: min(1520px, 98vw);
  margin: 30px auto 48px;
}

h1 {
  margin: 0;
  font-size: clamp(1.4rem, 2.6vw, 2.2rem);
}

.sub {
  margin-top: 10px;
  color: var(--muted);
}

.workspace {
  margin-top: 18px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  align-items: start;
}

.left-input-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.right-input-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.panel {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 14px;
}

label {
  display: block;
  margin-bottom: 8px;
  font-weight: 700;
}

textarea {
  width: 100%;
  border: 1px solid #ccb79f;
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 15px;
  line-height: 1.5;
  resize: vertical;
}

#sttInput {
  min-height: 300px;
}

#cleanPrompt,
#hintPrompt {
  min-height: 640px;
}

#refinedTextInput {
  min-height: 640px;
}

.actions-row {
  margin-top: 14px;
}

button {
  border: 0;
  border-radius: 10px;
  background: var(--accent);
  color: #fff;
  font-weight: 700;
  padding: 12px 18px;
  cursor: pointer;
}

button:hover {
  background: var(--accent-strong);
}

button:disabled {
  opacity: 0.65;
  cursor: not-allowed;
}

.output {
  margin-top: 14px;
}

.output pre {
  margin: 0;
  min-height: 180px;
  white-space: pre-wrap;
  word-break: break-word;
  font-size: 15px;
  line-height: 1.5;
}

@media (max-width: 1100px) {
  .workspace {
    grid-template-columns: 1fr;
  }

  .left-input-grid {
    grid-template-columns: 1fr;
  }

  .right-input-grid {
    grid-template-columns: 1fr;
  }

  #cleanPrompt,
  #hintPrompt,
  #refinedTextInput {
    min-height: 460px;
  }
}