:root {
  --bg: #0b1120;
  --panel: #111827;
  --panel2: #0f172a;
  --border: #334155;
  --text: #e5e7eb;
  --muted: #94a3b8;
  --blue: #2563eb;
  --blue2: #1d4ed8;
  --danger: #b91c1c;
  --warn: #7c2d12;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, Segoe UI, Arial, sans-serif;
}
.app { display: flex; min-height: 100vh; }
.sidebar {
  width: 280px;
  background: #020617;
  border-right: 1px solid var(--border);
  padding: 20px;
  display: flex;
  flex-direction: column;
}
.brand { display: flex; gap: 12px; align-items: center; margin-bottom: 24px; }
.logo {
  width: 42px; height: 42px; border-radius: 12px;
  background: linear-gradient(135deg, #2563eb, #14b8a6);
  display: grid; place-items: center; font-weight: 800;
}
.brand-name { font-size: 19px; font-weight: 800; }
.brand-sub { font-size: 13px; color: var(--muted); }
.nav {
  display: block; width: 100%;
  background: transparent; color: var(--text);
  border: 0; border-radius: 10px;
  padding: 12px; text-align: left;
  margin: 3px 0; cursor: pointer;
  font-size: 15px;
}
.nav:hover, .nav.active { background: #1e293b; }
.version {
  margin-top: auto;
  color: var(--muted);
  border-top: 1px solid var(--border);
  padding-top: 16px;
  font-size: 13px;
}
.main { flex: 1; padding: 28px; overflow: auto; }
.page { display: none; }
.page.show { display: block; }
.topbar {
  display: flex; justify-content: space-between; gap: 16px;
  align-items: center; margin-bottom: 20px;
}
h1 { margin: 0 0 6px; font-size: 30px; }
p { color: var(--muted); line-height: 1.5; }
.grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}
.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 18px;
}
.card.warning { border-color: #f97316; background: rgba(124, 45, 18, 0.25); }
button {
  background: var(--blue);
  color: white;
  border: 0;
  border-radius: 10px;
  padding: 10px 14px;
  cursor: pointer;
  font-weight: 700;
}
button:hover { background: var(--blue2); }
button.danger { background: var(--danger); }
.pill {
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 8px 12px;
  color: var(--muted);
  font-size: 13px;
}
.drive-layout {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 16px;
}
.drive-left {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 12px;
  align-self: start;
}
.drive-folder {
  width: 100%;
  text-align: left;
  background: transparent;
  margin-bottom: 6px;
}
.drive-folder:hover, .drive-folder.active { background: #1e293b; }
.drive-main {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 16px;
}
.toolbar {
  display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 12px;
}
input {
  background: #020617;
  color: var(--text);
  border: 1px solid #475569;
  border-radius: 10px;
  padding: 10px;
  min-width: 300px;
}
.dropzone {
  border: 2px dashed #64748b;
  border-radius: 16px;
  background: #020617;
  text-align: center;
  padding: 34px;
  margin: 12px 0;
  color: #cbd5e1;
}
.dropzone.dragover {
  border-color: #60a5fa;
  background: #0b1220;
}
.drop-icon { font-size: 34px; margin-bottom: 8px; }
.status {
  color: #cbd5e1;
  white-space: pre-wrap;
  min-height: 22px;
  margin: 12px 0;
  font-size: 14px;
}
.file-table {
  width: 100%;
  border-collapse: collapse;
}
.file-table th, .file-table td {
  border-bottom: 1px solid var(--border);
  padding: 10px;
  text-align: left;
}
.file-table th { color: #cbd5e1; font-size: 13px; text-transform: uppercase; }
@media (max-width: 800px) {
  .app { flex-direction: column; }
  .sidebar { width: 100%; }
  .drive-layout { grid-template-columns: 1fr; }
}