:root {
  --bg: #0b0c10;
  --fg: #e5e7eb;
  --muted: #9aa0a6;
  --panel: #111318;
  --accent: #8ab4f8;
  --accent-2: #10b981;
  --danger: #ef4444;
  --border: #23262d;
  --focus: #2563eb;
  --shadow: 0 10px 30px rgba(0,0,0,.35);
  --radius: 12px;
  --radius-sm: 8px;
}

* { box-sizing: border-box; }
html, body { margin: 0;
  padding: 0;
  height: 100%;
  overflow: hidden; /* Prevent scrollbars */
  background: radial-gradient(1200px 700px at 20% -10%, #13151b 0%, var(--bg) 60%) no-repeat;
}

body {
  margin: 0;
  background: radial-gradient(1200px 700px at 20% -10%, #13151b 0%, var(--bg) 60%);
  color: var(--fg);
  font: 16px/1.5 system-ui, -apple-system, Segoe UI, Roboto, Inter, Arial, sans-serif;
}

.wrap {
  max-width: 760px;
  margin: 7vh auto;
  padding: 28px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.title {
  margin: 0 0 4px;
  font-size: 28px;
  letter-spacing: 0.2px;
}

.subtitle {
  margin: 0 0 20px;
  color: var(--muted);
}

.label {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
}

.input {
  width: 100%;
  min-height: 110px;
  padding: 14px 16px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: #0f1116;
  color: var(--fg);
  resize: vertical;
  outline: none;
  transition: border-color .15s ease, box-shadow .15s ease;
}

.input:focus {
  border-color: var(--focus);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, .25);
}

.hint {
  margin: 8px 2px 14px;
  color: var(--muted);
  font-size: 13px;
}

.options {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin: 12px 0 16px;
  padding: 14px;
  border: 1px dashed var(--border);
  border-radius: var(--radius-sm);
}

.legend {
  padding: 0 6px;
  color: var(--muted);
  font-size: 13px;
}

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

.buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 30px; /* Increase spacing between buttons */
  justify-content: center; /* Center buttons horizontally */
  margin-top: 40px; /* Add more space above buttons */
}

.btn {
  appearance: none;
  border: 1px solid var(--border);
  background: #151822;
  color: var(--fg);
  padding: 10px 40px; /* Increase button size */
  padding-bottom: 28px;
  border-radius: var(--radius); /* Keep consistent border radius */
  font-weight: 600;
  cursor: pointer;
  transition: transform .05s ease, filter .15s ease, background .15s ease, border-color .15s ease;
}

/* format shortcut hints on buttons */
.shortcut {
  color: var(--muted);
  font-size: 13px;
}



.btn:disabled {
  opacity: .5;
  cursor: not-allowed;
}

.btn:hover:not(:disabled) {
  filter: brightness(1.03);
}

.btn:active:not(:disabled) {
  transform: translateY(1px);
}

.btn.google {
  border-color: #3b82f6;
}

.btn.google:hover:not(:disabled) {
  background: #3b82f6;
  /* color: #000000; */
  color: #ffffff;
}

.btn.chatgpt {
  border-color: #22c55e;
}

.btn.chatgpt:hover:not(:disabled) {
  background: #22c55e;
  color: #ffffff;
}

.btn.url {
  border-color: #facc15; /* Yellow for URL */
}

.btn.url:hover:not(:disabled) {
  background: #facc15;
  color: #000000;
}

.btn.youtube {
  border-color: #ef4444; /* Red for YouTube */
}

.btn.youtube:hover:not(:disabled) {
  background: #ef4444;
  color: #fff;
}

.btn.active {
  transform: scale(1.05);
  transition: transform 0.1s ease, filter 0.1s ease, background 0.1s ease;
}

.btn.google.active {
  filter: brightness(1.03);
  background: #3b82f6; /* Google hover color */
}

.btn.chatgpt.active {
  filter: brightness(1.03);
  background: #22c55e; /* ChatGPT hover color */
}

.btn.url.active {
  filter: brightness(1.03);
  background: #facc15; /* URL hover color */
}

.btn.youtube.active {
  filter: brightness(1.03);
  background: #ef4444; /* YouTube hover color */
}

.error {
  min-height: 20px;
  margin-top: 10px;
  color: var(--danger);
  font-size: 14px;
}

/* Responsive */
@media (max-width: 520px) {
  .wrap { margin: 4vh 10px; padding: 18px; }
  .title { font-size: 22px; }
  .input { min-height: 90px; }
}