:root {
  --bg: #0b1020;
  --panel: #111831;
  --panel-2: #161f3d;
  --card: #0f1630;
  --border: #233059;
  --text: #e7ebf7;
  --muted: #8d97b8;
  --accent: #5b6cff;
  --accent-2: #8a5bff;
  --danger: #ff5b7a;
  --ok: #3ddc97;
  --radius: 14px;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body {
  background: var(--bg); color: var(--text);
  font: 14px/1.4 Inter, system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
}
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }
a { color: var(--accent); }

.app { display: grid; grid-template-columns: 300px 1fr; min-height: 100vh; }

/* Sidebar */
.sidebar {
  background: var(--panel); border-right: 1px solid var(--border);
  padding: 18px 16px; position: sticky; top: 0; height: 100vh; overflow-y: auto;
  display: flex; flex-direction: column; gap: 18px;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 16px; }
.brand .dot { width: 26px; height: 26px; border-radius: 8px; background: linear-gradient(135deg, var(--accent), var(--accent-2)); display: grid; place-items: center; }
.section-title { font-size: 11px; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); margin-bottom: 8px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field label { color: var(--muted); font-size: 12px; }
select, input[type=text], input[type=password], input[type=number], textarea {
  background: var(--panel-2); border: 1px solid var(--border); border-radius: 10px; padding: 9px 11px; outline: none; width: 100%;
}
select:focus, input:focus, textarea:focus { border-color: var(--accent); }
.modes { display: grid; grid-template-columns: repeat(2, 1fr); gap: 6px; }
.mode-btn {
  background: var(--panel-2); border: 1px solid var(--border); border-radius: 10px; padding: 8px; text-align: left;
}
.mode-btn.active { border-color: var(--accent); background: rgba(91,108,255,.15); }
.mode-btn b { display: block; font-size: 13px; }
.mode-btn span { color: var(--muted); font-size: 11px; }
.toggle { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.switch { position: relative; width: 38px; height: 22px; flex: none; }
.switch input { opacity: 0; width: 0; height: 0; }
.switch .slider { position: absolute; inset: 0; background: var(--border); border-radius: 22px; transition: .15s; }
.switch .slider::before { content: ''; position: absolute; width: 16px; height: 16px; left: 3px; top: 3px; background: #fff; border-radius: 50%; transition: .15s; }
.switch input:checked + .slider { background: var(--accent); }
.switch input:checked + .slider::before { transform: translateX(16px); }
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chip {
  display: flex; align-items: center; gap: 6px; background: var(--panel-2); border: 1px solid var(--border);
  border-radius: 10px; padding: 4px 6px 4px 4px; font-size: 12px; max-width: 100%;
}
.chip img { width: 28px; height: 28px; object-fit: contain; image-rendering: pixelated; border-radius: 6px; background: #0004; }
.chip button { background: none; border: 0; color: var(--muted); padding: 0 2px; }
.chip.edit { border-color: #f5a524; }
.chip.ref { border-color: var(--ok); }
.empty-hint { color: var(--muted); font-size: 12px; border: 1px dashed var(--border); border-radius: 10px; padding: 10px; }
.sidebar-footer { margin-top: auto; display: flex; gap: 8px; }
.btn {
  text-decoration: none; text-align: center;
  background: var(--panel-2); border: 1px solid var(--border); border-radius: 10px; padding: 8px 12px;
}
.btn:hover { border-color: #3a4a85; }
.btn.primary { background: linear-gradient(135deg, var(--accent), var(--accent-2)); border: 0; font-weight: 600; }
.btn.danger { color: var(--danger); }
.btn:disabled { opacity: .5; cursor: default; }

/* Main */
.main { padding: 20px 28px 60px; min-width: 0; }
.prompt-bar {
  background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 10px; display: flex; gap: 10px; align-items: flex-end; position: sticky; top: 12px; z-index: 5;
  box-shadow: 0 10px 30px #0008;
}
.prompt-bar textarea { border: 0; background: transparent; resize: none; min-height: 44px; max-height: 200px; }
.prompt-bar .actions { display: flex; gap: 8px; align-items: center; }
.prompt-context { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 8px; }
.toolbar { display: flex; justify-content: space-between; align-items: center; margin: 22px 0 12px; gap: 10px; flex-wrap: wrap; }
.toolbar h2 { margin: 0; font-size: 16px; }
.toolbar input { width: 220px; }

.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); gap: 14px; }
.card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; position: relative;
}
.card .thumb {
  aspect-ratio: 1; display: grid; place-items: center; cursor: zoom-in;
  background: radial-gradient(circle at 50% 40%, #1a2348, #0b1020 75%);
}
.card .thumb img { width: 88%; height: 88%; object-fit: contain; image-rendering: pixelated; }
.card .thumb img.smooth { image-rendering: auto; }
.card .meta { padding: 10px 12px 12px; }
.card .label { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; font-weight: 500; }
.badges { display: flex; gap: 6px; margin-top: 6px; }
.badge { font-size: 11px; color: var(--muted); background: var(--panel-2); border: 1px solid var(--border); border-radius: 7px; padding: 1px 7px; }
.card .hover-actions {
  position: absolute; top: 10px; right: 10px; display: flex; flex-direction: column; gap: 6px; align-items: flex-end;
  opacity: 0; transition: opacity .12s;
}
.card:hover .hover-actions, .card:focus-within .hover-actions { opacity: 1; }
.pill {
  display: inline-flex; align-items: center; gap: 6px; border-radius: 999px; padding: 6px 12px;
  background: #1b2030e6; border: 1px solid #ffffff22; font-size: 13px; backdrop-filter: blur(6px);
}
.pill.use { background: linear-gradient(135deg, var(--accent), var(--accent-2)); border: 0; font-weight: 600; }
.pill:hover { border-color: #ffffff55; }
.card .open-btn { position: absolute; left: 10px; top: 10px; opacity: 0; transition: opacity .12s; }
.card:hover .open-btn { opacity: 1; }
.card.pending .thumb { cursor: default; }
.card.pending .thumb::after {
  content: ''; width: 34px; height: 34px; border: 3px solid var(--border); border-top-color: var(--accent);
  border-radius: 50%; animation: spin 0.9s linear infinite;
}
.card.failed { border-color: var(--danger); }
.card.failed .thumb { color: var(--danger); padding: 12px; text-align: center; font-size: 12px; cursor: default; }
@keyframes spin { to { transform: rotate(360deg); } }
.load-more { display: flex; justify-content: center; margin-top: 20px; }
.empty { color: var(--muted); text-align: center; padding: 60px 0; }

/* Modal */
.modal-backdrop { position: fixed; inset: 0; background: #000b; display: none; align-items: center; justify-content: center; z-index: 50; padding: 20px; }
.modal-backdrop.open { display: flex; }
.modal { background: var(--panel); border: 1px solid var(--border); border-radius: 18px; max-width: 1000px; width: 100%; max-height: 92vh; overflow: auto; }
.viewer { display: grid; grid-template-columns: 1fr 320px; }
.viewer .stage {
  min-height: 420px; display: grid; place-items: center; padding: 24px;
  background-color: #1a2040;
  background-image: linear-gradient(45deg, #222a50 25%, transparent 25%), linear-gradient(-45deg, #222a50 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #222a50 75%), linear-gradient(-45deg, transparent 75%, #222a50 75%);
  background-size: 20px 20px; background-position: 0 0, 0 10px, 10px -10px, -10px 0;
}
.viewer .stage img { max-width: 100%; max-height: 70vh; image-rendering: pixelated; min-width: 256px; object-fit: contain; }
.viewer .stage img.smooth { image-rendering: auto; min-width: 0; }
.viewer .side { padding: 18px; display: flex; flex-direction: column; gap: 12px; border-left: 1px solid var(--border); }
.viewer .side .prompt { color: var(--muted); font-size: 13px; white-space: pre-wrap; background: var(--panel-2); border-radius: 10px; padding: 10px; }
.kv { display: grid; grid-template-columns: auto 1fr; gap: 4px 10px; font-size: 12px; color: var(--muted); }
.kv b { color: var(--text); font-weight: 500; word-break: break-all; }
.row { display: flex; gap: 8px; flex-wrap: wrap; }
.modal .head { display: flex; justify-content: space-between; align-items: center; padding: 16px 18px; border-bottom: 1px solid var(--border); }
.modal .head h3 { margin: 0; }
.modal .body { padding: 18px; }
code, pre { background: var(--panel-2); border: 1px solid var(--border); border-radius: 8px; }
code { padding: 1px 6px; }
pre { padding: 12px; overflow-x: auto; white-space: pre-wrap; word-break: break-all; }

.toast { position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%); background: var(--panel-2); border: 1px solid var(--border); padding: 10px 16px; border-radius: 10px; z-index: 60; display: none; }
.toast.show { display: block; }

/* Login */
.login-wrap { min-height: 100vh; display: grid; place-items: center; padding: 16px; }
.login { width: 100%; max-width: 360px; background: var(--panel); border: 1px solid var(--border); border-radius: 18px; padding: 28px; display: flex; flex-direction: column; gap: 14px; }
.login h1 { margin: 0; font-size: 20px; }
.error { color: var(--danger); font-size: 13px; min-height: 18px; }

@media (max-width: 860px) {
  .app { grid-template-columns: 1fr; }
  .sidebar { position: static; height: auto; order: 2; border-right: 0; border-top: 1px solid var(--border); }
  .main { padding: 16px; }
  .viewer { grid-template-columns: 1fr; }
  .viewer .side { border-left: 0; border-top: 1px solid var(--border); }
  .card .hover-actions, .card .open-btn { opacity: 1; }
  .grid { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); }
}