:root {
  --bg: #12141a;
  --bg-alt: #191c24;
  --panel: #1d212b;
  --border: #2b2f3a;
  --text: #e4e6eb;
  --text-dim: #8b909c;
  --accent: #5b8cff;
  --accent-dim: #34406b;
  --green: #4caf7d;
  --red: #e2574c;
  --yellow: #d9a441;
  font-size: 15px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

.topbar {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 10px 20px;
  background: var(--bg-alt);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}

.brand {
  font-weight: 700;
  font-size: 18px;
  letter-spacing: 0.5px;
}
.brand span { color: var(--accent); font-weight: 400; }

.tabs { display: flex; gap: 8px; flex: 1; }

.tab-btn {
  background: transparent;
  border: none;
  color: var(--text-dim);
  padding: 8px 14px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 14px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.tab-btn:hover { background: var(--panel); color: var(--text); }
.tab-btn.active { background: var(--accent-dim); color: var(--text); }

.badge {
  background: var(--accent);
  color: #fff;
  font-size: 11px;
  padding: 1px 6px;
  border-radius: 10px;
}
.badge.hidden { display: none; }

.conn { font-size: 12px; color: var(--text-dim); }
.conn.ok { color: var(--green); }
.conn.err { color: var(--red); }

main { max-width: 1100px; margin: 0 auto; padding: 20px; }

.tab-panel { display: none; }
.tab-panel.active { display: block; }

.search-bar { display: flex; gap: 10px; margin-bottom: 12px; }
.search-bar input {
  flex: 1;
  background: var(--panel);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 10px 14px;
  border-radius: 6px;
  font-size: 15px;
}
.search-bar input:focus { outline: none; border-color: var(--accent); }
.search-bar button, .downloads-toolbar button {
  background: var(--accent);
  color: #fff;
  border: none;
  padding: 10px 18px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
}
.search-bar button:disabled { background: var(--accent-dim); cursor: default; }

.filter-bar { display: flex; gap: 18px; margin-bottom: 10px; }
.filter-toggle { display: flex; align-items: center; gap: 6px; font-size: 13px; color: var(--text-dim); cursor: pointer; user-select: none; }
.filter-toggle input { accent-color: var(--accent); cursor: pointer; }

.status-line { color: var(--text-dim); font-size: 13px; margin-bottom: 14px; min-height: 18px; }

.results { display: flex; flex-direction: column; gap: 10px; }

.user-group {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}

.user-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  cursor: pointer;
  user-select: none;
}
.user-header:hover { background: #232733; }
.user-header .username { font-weight: 600; }
.user-header .fname { font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.user-header .fname .fpath { font-weight: 400; color: var(--text-dim); font-size: 11px; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.user-header .meta { color: var(--text-dim); font-size: 12px; display: flex; gap: 12px; margin-left: auto; flex-shrink: 0; }
.user-header .slot-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--red); flex-shrink: 0; }
.user-header .slot-dot.free { background: var(--green); }
.user-header .chevron { color: var(--text-dim); transition: transform 0.15s; flex-shrink: 0; }
.user-header button {
  flex-shrink: 0;
  background: var(--accent-dim);
  color: var(--text);
  border: none;
  padding: 6px 12px;
  border-radius: 5px;
  cursor: pointer;
  font-size: 12px;
  font-weight: 600;
  white-space: nowrap;
}
.user-header button:hover { background: var(--accent); }
.user-header button:disabled { opacity: 0.5; cursor: default; }
.user-group.collapsed .chevron { transform: rotate(-90deg); }
.user-group.collapsed .file-list { display: none; }

.file-list { border-top: 1px solid var(--border); }
.file-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px;
  border-top: 1px solid var(--border);
  font-size: 13px;
}
.file-row:first-child { border-top: none; }
.file-row .fname {
  flex: 1;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.file-row .fpath { color: var(--text-dim); font-size: 11px; }
.file-row .fsize, .file-row .fattr { color: var(--text-dim); white-space: nowrap; }
.file-row button {
  background: var(--accent-dim);
  color: var(--text);
  border: none;
  padding: 5px 12px;
  border-radius: 5px;
  cursor: pointer;
  font-size: 12px;
  white-space: nowrap;
}
.file-row button:hover { background: var(--accent); }
.file-row button:disabled { opacity: 0.5; cursor: default; }

.downloads-toolbar { display: flex; align-items: center; gap: 14px; margin-bottom: 14px; }
.downloads-toolbar h2 { margin: 0; font-size: 18px; flex: 1; }

.downloads { display: flex; flex-direction: column; gap: 14px; }
.dl-user { background: var(--panel); border: 1px solid var(--border); border-radius: 8px; padding: 12px 14px; }
.dl-user .username { font-weight: 600; margin-bottom: 8px; }
.dl-dir { color: var(--text-dim); font-size: 12px; margin: 8px 0 4px; }
.dl-file { padding: 8px 0; border-top: 1px solid var(--border); }
.dl-file:first-of-type { border-top: none; }
.dl-file-top { display: flex; align-items: center; gap: 10px; font-size: 13px; }
.dl-file-top .fname { flex: 1; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.dl-file-top .state { font-size: 11px; padding: 2px 8px; border-radius: 10px; background: var(--border); white-space: nowrap; }
.state.completed { background: #1f3d2c; color: var(--green); }
.state.errored, .state.cancelled { background: #3d2020; color: var(--red); }
.state.inprogress, .state.queued { background: #2a3550; color: var(--accent); }
.dl-file-top button {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-dim);
  padding: 3px 9px;
  border-radius: 5px;
  cursor: pointer;
  font-size: 11px;
}
.dl-file-top button:hover { color: var(--text); border-color: var(--text-dim); }
.progress-bar { height: 4px; background: var(--border); border-radius: 2px; margin-top: 6px; overflow: hidden; }
.progress-bar-fill { height: 100%; background: var(--accent); }
.dl-file-sub { color: var(--text-dim); font-size: 11px; margin-top: 4px; }
.empty { color: var(--text-dim); padding: 30px; text-align: center; }

.toast {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--panel);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 10px 18px;
  border-radius: 6px;
  font-size: 13px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.4);
}
.toast.hidden { display: none; }
.toast.error { border-color: var(--red); color: var(--red); }