:root {
  --bg: #0A0A0E;
  --panel: #121218;
  --panel-2: #16161F;
  --border: rgba(156, 124, 255, 0.14);
  --accent: #9C7CFF;
  --accent-soft: rgba(156, 124, 255, 0.12);
  --text: #EDEDF5;
  --muted: #8A8A9E;
  --ok: #4ADE80;
  --err: #F87171;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { background: var(--bg); color: var(--text); font-family: 'Segoe UI', 'Inter', system-ui, sans-serif; }
body { min-height: 100vh; }
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 28px; border-bottom: 1px solid var(--border);
  position: sticky; top: 0; background: rgba(10, 10, 14, 0.85); backdrop-filter: blur(10px); z-index: 10;
}
.brand { display: flex; align-items: center; gap: 10px; font-size: 19px; font-weight: 700; letter-spacing: 0.4px; }
.brand-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 12px var(--accent); }
.topbar-note { color: var(--muted); font-size: 13px; }
.wrap { max-width: 1180px; margin: 0 auto; padding: 28px 20px 40px; }
.grid { display: grid; grid-template-columns: 1.6fr 1fr; gap: 18px; }
@media (max-width: 900px) { .grid { grid-template-columns: 1fr; } }
.panel {
  background: var(--panel); border: 1px solid var(--border); border-radius: 16px;
  padding: 18px; transition: border-color 0.25s ease, box-shadow 0.25s ease;
}
.panel:hover { border-color: rgba(156, 124, 255, 0.3); }
.panel-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.panel-head h2 { font-size: 14px; font-weight: 600; letter-spacing: 0.8px; text-transform: uppercase; color: var(--muted); }
.panel-actions { display: flex; gap: 8px; }
.editor-shell { border: 1px solid var(--border); border-radius: 12px; overflow: hidden; background: var(--panel-2); transition: border-color 0.25s ease; }
.editor-shell.drag { border-color: var(--accent); box-shadow: 0 0 0 2px var(--accent-soft); }
textarea {
  width: 100%; min-height: 380px; resize: vertical; border: 0; outline: none;
  background: transparent; color: var(--text); padding: 14px;
  font-family: ui-monospace, 'Cascadia Code', 'JetBrains Mono', Consolas, monospace;
  font-size: 13px; line-height: 1.55; tab-size: 4;
}
.panel-foot { display: flex; justify-content: space-between; margin-top: 10px; color: var(--muted); font-size: 12px; }
.hint { opacity: 0.8; }
.btn {
  border: 1px solid var(--border); background: var(--panel-2); color: var(--text);
  border-radius: 10px; padding: 9px 16px; font-size: 13px; cursor: pointer;
  transition: background 0.2s ease, border-color 0.2s ease, transform 0.15s ease, opacity 0.2s ease;
}
.btn:hover { border-color: var(--accent); background: var(--accent-soft); }
.btn:active { transform: scale(0.97); }
.btn:disabled { opacity: 0.55; cursor: not-allowed; }
.btn-primary { background: var(--accent); border-color: var(--accent); color: #0A0A0E; font-weight: 700; }
.btn-primary:hover { background: #B3A0FF; border-color: #B3A0FF; }
.btn-wide { width: 100%; padding: 13px; font-size: 15px; margin-top: 16px; }
.control-row { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.control-label { width: 84px; flex: none; color: var(--muted); font-size: 13px; }
.select, .textinput {
  flex: 1; background: var(--panel-2); border: 1px solid var(--border); color: var(--text);
  border-radius: 10px; padding: 9px 12px; font-size: 13px; outline: none;
  transition: border-color 0.2s ease; min-width: 0;
}
.select:focus, .textinput:focus { border-color: var(--accent); }
.chips { display: flex; gap: 8px; flex-wrap: wrap; }
.chip {
  border: 1px solid var(--border); background: transparent; color: var(--muted);
  border-radius: 999px; padding: 7px 14px; font-size: 13px; cursor: pointer;
  transition: all 0.2s ease;
}
.chip:hover { color: var(--text); border-color: var(--accent); }
.chip.is-active { background: var(--accent); border-color: var(--accent); color: #0A0A0E; font-weight: 600; }
.methods { display: flex; flex-direction: column; gap: 4px; margin-bottom: 6px; max-height: 240px; overflow-y: auto; padding-right: 4px; }
.method {
  display: flex; align-items: center; gap: 10px; padding: 7px 10px;
  border-radius: 10px; transition: background 0.2s ease; cursor: pointer;
}
.method:hover { background: var(--accent-soft); }
.method.is-disabled { opacity: 0.4; pointer-events: none; }
.method input { accent-color: var(--accent); width: 15px; height: 15px; cursor: pointer; }
.method-name { font-size: 13px; font-weight: 500; }
.method-desc { font-size: 11.5px; color: var(--muted); margin-left: auto; text-align: right; }
.switch { position: relative; width: 40px; height: 22px; flex: none; }
.switch input { opacity: 0; width: 0; height: 0; }
.slider {
  position: absolute; inset: 0; background: var(--panel-2); border: 1px solid var(--border);
  border-radius: 999px; cursor: pointer; transition: background 0.25s ease;
}
.slider:before {
  content: ""; position: absolute; width: 14px; height: 14px; left: 3px; top: 3px;
  border-radius: 50%; background: var(--muted); transition: transform 0.25s ease, background 0.25s ease;
}
.switch input:checked + .slider { background: var(--accent-soft); border-color: var(--accent); }
.switch input:checked + .slider:before { transform: translateX(18px); background: var(--accent); }
.status { margin-top: 12px; color: var(--muted); font-size: 13px; text-align: center; }
.alert { margin-top: 12px; border-radius: 10px; padding: 11px 13px; font-size: 13px; line-height: 1.5; word-break: break-word; }
.alert-error { background: rgba(248, 113, 113, 0.08); border: 1px solid rgba(248, 113, 113, 0.3); color: var(--err); }
.alert-ok { background: rgba(74, 222, 128, 0.07); border: 1px solid rgba(74, 222, 128, 0.3); color: var(--ok); }
.panel-output { margin-top: 18px; }
.foot { margin-top: 22px; text-align: center; color: var(--muted); font-size: 12.5px; }