:root {
  color-scheme: light dark;
  font-family: "Segoe UI", Tahoma, Arial, sans-serif;
}

body {
  margin: 0;
  background: #0f1115;
  color: #e6e6e6;
}

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 32px 20px 48px;
}

h1 {
  margin-bottom: 24px;
  font-size: 28px;
}

.card {
  background: #171a21;
  border: 1px solid #2b2f3a;
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 20px;
}

.row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  margin-bottom: 12px;
}

button {
  border: none;
  border-radius: 8px;
  padding: 10px 16px;
  background: #3a7afe;
  color: #fff;
  cursor: pointer;
  font-weight: 600;
}

button[disabled] {
  opacity: 0.6;
  cursor: not-allowed;
}

select,
input[type="file"] {
  background: #10131a;
  color: #e6e6e6;
  border: 1px solid #2b2f3a;
  border-radius: 6px;
  padding: 6px 8px;
}

textarea {
  background: #10131a;
  color: #e6e6e6;
  border: 1px solid #2b2f3a;
  border-radius: 6px;
  padding: 8px;
  resize: vertical;
}

.status {
  font-size: 13px;
  color: #aeb6c2;
  margin-bottom: 8px;
}

.status.warn {
  color: #f5a623;
}

.output {
  min-height: 120px;
  white-space: pre-wrap;
  background: #0c0e12;
  border-radius: 8px;
  padding: 12px;
  border: 1px solid #2b2f3a;
}

.output-title {
  font-size: 13px;
  color: #aeb6c2;
  margin: 8px 0 6px;
}

.batch-input {
  width: 100%;
  min-height: 140px;
}

.flex-1 {
  flex: 1;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.output-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin: 8px 0 6px;
}

.copy-btn {
  background: #2a2f3a;
  color: #e6e6e6;
  border: 1px solid #3a414f;
  padding: 6px 12px;
  font-size: 12px;
}

.copy-btn:hover {
  background: #333a47;
}

.muted {
  color: #aeb6c2;
  margin-top: 0;
}