:root {
  --bg: #0f1419;
  --panel: #1a212b;
  --panel-2: #232c38;
  --border: #2c3543;
  --text: #e6edf3;
  --muted: #8b97a7;
  --accent: #3b82f6;
  --accent-2: #2563eb;
  --green: #22c55e;
  --red: #ef4444;
  --yellow: #eab308;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
}

.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 0.8rem 1.4rem;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 10;
}
.brand { display: flex; align-items: center; gap: 0.8rem; }
.logo { font-size: 1.8rem; }
.brand h1 { margin: 0; font-size: 1.1rem; }
.brand small { color: var(--muted); }
.topbar-actions { display: flex; align-items: center; gap: 0.6rem; }
.lang-select { width: auto; margin-top: 0; padding: 0.45rem 0.5rem; cursor: pointer; }
.feed-toolbar { display: flex; gap: 0.5rem; flex-wrap: wrap; }

.tabs { display: flex; gap: 0.3rem; padding: 0 1.4rem; background: var(--panel); border-bottom: 1px solid var(--border); }
.tab {
  background: none; border: none; color: var(--muted);
  padding: 0.8rem 1rem; cursor: pointer; font-size: 0.95rem;
  border-bottom: 2px solid transparent;
}
.tab:hover { color: var(--text); }
.tab.active { color: var(--text); border-bottom-color: var(--accent); }

main { padding: 1.4rem; max-width: 1100px; margin: 0 auto; }
.tab-panel { display: none; }
.tab-panel.active { display: block; }

.cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; margin-bottom: 1.4rem; }
.card { background: var(--panel); border: 1px solid var(--border); border-radius: 10px; padding: 1.1rem; }
.card-val { font-size: 1.8rem; font-weight: 700; }
.card-lbl { color: var(--muted); margin-top: 0.2rem; }

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.panel { background: var(--panel); border: 1px solid var(--border); border-radius: 10px; padding: 1.2rem; }
.panel h2 { margin: 0 0 0.8rem; font-size: 1rem; }
.panel-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 1rem; }
.panel-head h2 { margin: 0; }

.kv { width: 100%; border-collapse: collapse; }
.kv td { padding: 0.4rem 0; border-bottom: 1px solid var(--border); }
.kv td:first-child { color: var(--muted); width: 45%; }

.log {
  background: #0b0e13; border: 1px solid var(--border); border-radius: 8px;
  padding: 0.6rem; height: 360px; overflow-y: auto;
  font-family: "SFMono-Regular", Consolas, monospace; font-size: 12px; line-height: 1.5;
}
.log .line { white-space: pre-wrap; word-break: break-word; padding: 1px 0; }
.log .INFO { color: var(--text); }
.log .WARNING { color: var(--yellow); }
.log .ERROR { color: var(--red); }
.log .time { color: var(--muted); }

.btn {
  background: var(--panel-2); color: var(--text); border: 1px solid var(--border);
  padding: 0.5rem 0.9rem; border-radius: 8px; cursor: pointer; font-size: 0.9rem;
}
.btn:hover { background: #2b3543; }
.btn-primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-2); }
.btn-danger { color: #fff; background: var(--red); border-color: var(--red); }
.btn-sm { padding: 0.3rem 0.6rem; font-size: 0.8rem; }

.pill { padding: 0.25rem 0.7rem; border-radius: 999px; font-size: 0.8rem; font-weight: 600; }
.pill-on { background: rgba(34,197,94,0.15); color: var(--green); }
.pill-off { background: rgba(234,179,8,0.15); color: var(--yellow); }
.pill-muted { background: var(--panel-2); color: var(--muted); }

.row { display: flex; gap: 0.8rem; }
.row > * { flex: 1; }
.row input { width: 100%; }

label { display: block; margin-bottom: 0.8rem; color: var(--muted); font-size: 0.85rem; }
label.check { display: flex; align-items: center; gap: 0.5rem; color: var(--text); }
label.check input { width: auto; }
input, select {
  width: 100%; margin-top: 0.3rem; padding: 0.55rem 0.7rem;
  background: #0e131a; border: 1px solid var(--border); border-radius: 8px;
  color: var(--text); font-size: 0.9rem;
}
input:focus { outline: none; border-color: var(--accent); }

/* Feeds list */
.feed-row {
  background: var(--panel); border: 1px solid var(--border); border-radius: 10px;
  padding: 0.9rem 1.1rem; margin-bottom: 0.7rem;
  display: flex; align-items: center; gap: 1rem;
}
.feed-main { flex: 1; min-width: 0; }
.feed-name { font-weight: 600; }
.feed-url { color: var(--muted); font-size: 0.8rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.feed-badges { display: flex; gap: 0.4rem; flex-wrap: wrap; margin-top: 0.3rem; }
.badge { background: var(--panel-2); color: var(--muted); padding: 0.1rem 0.5rem; border-radius: 6px; font-size: 0.72rem; }
.badge.topic { background: rgba(59,130,246,0.18); color: #93c5fd; }
.feed-actions { display: flex; gap: 0.4rem; }
.icon-btn { background: none; border: none; color: var(--muted); cursor: pointer; font-size: 1rem; }
.icon-btn:hover { color: var(--text); }

.switch { position: relative; display: inline-block; width: 40px; height: 22px; }
.switch input { display: none; }
.slider { position: absolute; inset: 0; background: var(--border); border-radius: 999px; transition: .2s; cursor: pointer; }
.slider::before { content: ""; position: absolute; height: 16px; width: 16px; left: 3px; top: 3px; background: #fff; border-radius: 50%; transition: .2s; }
.switch input:checked + .slider { background: var(--green); }
.switch input:checked + .slider::before { transform: translateX(18px); }

/* Modal */
.modal { position: fixed; inset: 0; background: rgba(0,0,0,0.6); display: flex; align-items: flex-start; justify-content: center; padding: 3rem 1rem; z-index: 50; overflow-y: auto; }
.modal.hidden { display: none; }
.modal-box { background: var(--panel); border: 1px solid var(--border); border-radius: 12px; width: 100%; max-width: 560px; padding: 1.4rem; }
.modal-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1rem; }
.modal-head h2 { margin: 0; }
.modal-actions { display: flex; align-items: center; gap: 0.6rem; margin-top: 0.5rem; }
.spacer { flex: 1; }
.preview { margin-top: 1rem; font-size: 0.82rem; color: var(--muted); }
.preview .ok { color: var(--green); }
.preview .err { color: var(--red); }
.preview ul { margin: 0.4rem 0 0; padding-left: 1.1rem; }

.toast {
  position: fixed; bottom: 1.5rem; left: 50%; transform: translateX(-50%);
  background: var(--panel-2); border: 1px solid var(--border); color: var(--text);
  padding: 0.7rem 1.2rem; border-radius: 10px; z-index: 100;
}
.toast.hidden { display: none; }
.toast.err { border-color: var(--red); }
.toast.ok { border-color: var(--green); }

.hidden { display: none; }
.empty { color: var(--muted); text-align: center; padding: 2rem; }

@media (max-width: 760px) {
  .cards { grid-template-columns: repeat(2, 1fr); }
  .grid-2 { grid-template-columns: 1fr; }
  .row { flex-direction: column; }
}