:root {
  --bg: #14161c;
  --bg-2: #1b1e27;
  --bg-3: #232735;
  --border: #2c3142;
  --text: #e6e8ee;
  --text-dim: #99a0b3;
  --accent: #6c8cff;
  --accent-2: #8a6cff;
  --green: #36c98b;
  --red: #ef5d6b;
  --amber: #f0b400;
  --radius: 10px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: "Segoe UI", system-ui, -apple-system, Roboto, sans-serif;
  font-size: 14px;
}

.app { display: flex; height: 100vh; }

/* ---- sidebar ---- */
.sidebar {
  width: 240px;
  flex-shrink: 0;
  background: var(--bg-2);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  padding: 18px 14px;
}
.brand { display: flex; align-items: center; gap: 12px; padding: 4px 6px 22px; }
.brand .spark { font-size: 26px; }
.brand-title { font-weight: 700; font-size: 16px; }
.brand-sub { color: var(--text-dim); font-size: 12px; }

nav { display: flex; flex-direction: column; gap: 4px; }
.nav-item {
  display: flex; align-items: center; gap: 10px;
  background: transparent; color: var(--text-dim);
  border: none; border-radius: 8px;
  padding: 10px 12px; font-size: 14px; text-align: left;
  cursor: pointer; transition: background .12s, color .12s;
}
.nav-item:hover { background: var(--bg-3); color: var(--text); }
.nav-item.active {
  background: linear-gradient(90deg, rgba(108,140,255,.18), rgba(138,108,255,.12));
  color: var(--text);
}
.nav-ico { width: 18px; text-align: center; opacity: .85; }
.sidebar-foot {
  margin-top: auto; color: var(--text-dim); font-size: 11px;
  word-break: break-all; padding: 8px 6px 0;
}

/* ---- content ---- */
.content { flex: 1; overflow-y: auto; padding: 26px 32px; }
.view { display: none; }
.view.active { display: block; }
.view-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; }
.view-head h1 { font-size: 22px; margin: 0; }
.head-actions { display: flex; gap: 10px; }
.subhead { font-size: 15px; color: var(--text-dim); margin: 28px 0 12px; }
.subhead.first { margin-top: 0; }

/* ---- inputs/buttons ---- */
input, select {
  background: var(--bg-3); color: var(--text);
  border: 1px solid var(--border); border-radius: 8px;
  padding: 9px 11px; font-size: 14px; width: 100%;
}
input:focus, select:focus { outline: none; border-color: var(--accent); }
input[type=search] { width: 200px; }
label { display: block; margin: 14px 0 6px; color: var(--text-dim); font-size: 13px; }

.btn {
  background: var(--bg-3); color: var(--text);
  border: 1px solid var(--border); border-radius: 8px;
  padding: 9px 16px; font-size: 14px; cursor: pointer;
  transition: background .12s, border-color .12s;
}
.btn:hover { background: #2a3042; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #0c1020; font-weight: 600; }
.btn.primary:hover { background: #5b7dff; }
.btn.danger { color: var(--red); border-color: transparent; background: transparent; padding: 6px 10px; }
.btn.danger:hover { background: rgba(239,93,107,.12); }
.btn:disabled { opacity: .5; cursor: not-allowed; }

/* ---- cards ---- */
.card {
  background: var(--bg-2); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 20px; margin-bottom: 18px;
}
.form-card { max-width: 720px; }
.row { display: flex; gap: 18px; }
.col { flex: 1; }
.hint { color: var(--text-dim); font-size: 12px; margin-top: 6px; }
.source-hint { font-size: 12px; margin-top: 8px; min-height: 16px; color: var(--accent); }
.form-actions { display: flex; align-items: center; gap: 14px; margin-top: 20px; }
.form-msg { font-size: 13px; }
.form-msg.ok { color: var(--green); }
.form-msg.err { color: var(--red); }
.badge { font-size: 11px; padding: 1px 8px; border-radius: 10px; margin-left: 6px; }
.badge.set { background: rgba(54,201,139,.18); color: var(--green); }
.badge.unset { background: var(--bg-3); color: var(--text-dim); }
code { background: var(--bg-3); padding: 1px 5px; border-radius: 4px; font-size: 12px; }

/* ---- installed models ---- */
.models-container { display: flex; flex-direction: column; gap: 22px; }
.type-group h3 {
  font-size: 13px; text-transform: uppercase; letter-spacing: .04em;
  color: var(--text-dim); margin: 0 0 10px; font-weight: 600;
}
.model-grid {
  display: grid; gap: 12px;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
}
.model-card {
  background: var(--bg-2); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 14px;
  display: flex; flex-direction: column; gap: 6px;
}
.model-card .name { font-weight: 600; word-break: break-all; }
.model-card .meta { color: var(--text-dim); font-size: 12px; }
.model-card .card-foot { display: flex; justify-content: space-between; align-items: center; margin-top: 4px; }
.empty { color: var(--text-dim); }

/* ---- downloads ---- */
.downloads-container { display: flex; flex-direction: column; gap: 10px; max-width: 860px; }
.dl-row {
  background: var(--bg-2); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 12px 14px;
}
.dl-top { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.dl-name { font-weight: 600; word-break: break-all; }
.dl-sub { color: var(--text-dim); font-size: 12px; margin-top: 2px; }
.dl-status { font-size: 12px; padding: 2px 9px; border-radius: 10px; white-space: nowrap; }
.dl-status.downloading { background: rgba(108,140,255,.18); color: var(--accent); }
.dl-status.completed { background: rgba(54,201,139,.18); color: var(--green); }
.dl-status.failed { background: rgba(239,93,107,.18); color: var(--red); }
.dl-status.canceled { background: var(--bg-3); color: var(--text-dim); }
.dl-status.queued { background: rgba(240,180,0,.16); color: var(--amber); }
.progress { height: 6px; background: var(--bg-3); border-radius: 4px; margin-top: 10px; overflow: hidden; }
.progress > span { display: block; height: 100%; background: linear-gradient(90deg, var(--accent), var(--accent-2)); width: 0; transition: width .3s; }
.dl-actions { display: flex; align-items: center; gap: 8px; }