:root {
  --bg: #0f1115;
  --panel: #151823;
  --text: #e6e7eb;
  --muted: #aab0c0;
  --brand: #6aa0ff;
  --brand-2: #9b6bff;
  --border: #262a36;
  --ok: #34c759;
  --warn: #ff9f0a;
}

* { box-sizing: border-box; }

html, body { height: 100%; }

body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  background: linear-gradient(180deg, #0e1014 0%, #0f1115 100%);
  color: var(--text);
}

.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 24px 16px 64px;
}

header { margin-bottom: 16px; }
h1 { margin: 0 0 4px; font-size: 28px; }
header p { margin: 0; color: var(--muted); }

.prompt, .providers, .run {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 14px;
  margin-top: 14px;
}

.label { display: block; font-weight: 600; margin-bottom: 8px; }
textarea {
  width: 100%;
  color: var(--text);
  background: #0e121b;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px;
  outline: none;
  resize: vertical;
}
textarea:focus { border-color: #334155; box-shadow: 0 0 0 2px rgba(106,160,255,.15); }

.prompt-tools { display: flex; align-items: center; gap: 8px; margin-top: 8px; flex-wrap: wrap; }
.prompt-tools .spacer { flex: 1; }
#charCount { color: var(--muted); font-size: 12px; }

.providers-header { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.providers-header .h { margin: 0; font-size: 18px; }
.providers-header .actions { display: flex; gap: 6px; }

.providers-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 8px; margin-top: 10px; }
.provider-item {
  display: flex; align-items: flex-start; gap: 10px; flex-wrap: wrap;
  padding: 10px;
  background: #0f131d;
  border: 1px solid var(--border);
  border-radius: 10px;
}
.provider-item.clickable { cursor: pointer; }
.provider-item.clickable:hover { border-color: #334155; box-shadow: 0 0 0 2px rgba(106,160,255,.08) inset; }
.provider-item.drag-over { outline: 2px dashed var(--brand); }
.provider-item.dragging { opacity: .6; }
.provider-item .grow { flex: 1; }
.provider-item .meta { color: var(--muted); font-size: 12px; }
.provider-item .row { display: flex; align-items: center; gap: 8px; }

.provider-controls { display: flex; gap: 6px; margin-left: auto; flex-wrap: wrap; }
.provider-controls button { padding: 4px 8px; }
.provider-controls .icon { width: 28px; height: 28px; padding: 0; display: grid; place-items: center; }
.drag-handle { cursor: grab; user-select: none; }
.drag-handle:active { cursor: grabbing; }

.customize { margin-top: 10px; }
.provider-form { margin-top: 8px; background: #0e121b; border: 1px dashed var(--border); border-radius: 10px; padding: 10px; }
.provider-form .grid { display: grid; grid-template-columns: 1fr 2fr; gap: 8px; }
.provider-form label { display: grid; gap: 6px; font-size: 14px; }
.provider-form input {
  width: 100%;
  color: var(--text);
  background: #0b0f17;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 10px;
  outline: none;
}
.provider-form input:focus { border-color: #334155; }
.hint { color: var(--muted); font-size: 12px; margin: 8px 0; }
.form-actions { display: flex; justify-content: flex-end; }

.options { display: grid; gap: 6px; margin-bottom: 10px; }
.checkbox { display: flex; align-items: center; gap: 8px; font-size: 14px; }

button {
  appearance: none; border: 1px solid var(--border); border-radius: 10px; padding: 10px 14px; background: #0e121b; color: var(--text);
  cursor: pointer; font-weight: 600;
}
button.primary { background: linear-gradient(90deg, var(--brand), var(--brand-2)); border: none; }
button.secondary { background: #0e121b; }
button.small { padding: 6px 10px; font-size: 12px; }
button:disabled { opacity: 0.6; cursor: not-allowed; }

.note { color: var(--muted); font-size: 12px; }

footer { margin-top: 16px; color: var(--muted); font-size: 12px; }

.toast {
  position: fixed;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  background: #101522;
  border: 1px solid var(--border);
  color: var(--text);
  padding: 10px 14px;
  border-radius: 10px;
  opacity: 0;
  pointer-events: none;
  transition: opacity .2s ease, transform .2s ease;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(-4px); }

/* Trash drop zone */
.trash-zone {
  margin-top: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
  justify-content: center;
  padding: 10px;
  border: 1px dashed var(--border);
  border-radius: 10px;
  color: var(--muted);
  background: #0e121b;
}
.trash-zone.drag-over { border-color: #ef4444; color: #fca5a5; background: rgba(239,68,68,.06); }
.trash-zone .trash-emoji { filter: grayscale(.2); }

@media (max-width: 640px) {
  .provider-form .grid { grid-template-columns: 1fr; }
  .providers-list { grid-template-columns: 1fr; }
}