/* ── Reset & Tokens ─────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:        #0a0a0f;
  --surface:   rgba(255,255,255,0.04);
  --border:    rgba(255,255,255,0.08);
  --accent:    #7c6af7;
  --accent-lo: rgba(124,106,247,0.15);
  --text:      #e2e2e8;
  --muted:     #6b6b80;
  --danger:    #f06565;
  --success:   #56d98a;
  --warning:   #f0c265;
  --radius:    12px;
  --blur:      blur(20px);
  --sidebar-w: 220px;
  --transition: 0.18s ease;
}

html, body { height: 100%; background: var(--bg); color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 15px; line-height: 1.55; }

/* ── Layout ─────────────────────────────────────────────── */
#app { display: flex; height: 100vh; overflow: hidden; }

#sidebar {
  width: var(--sidebar-w); flex-shrink: 0;
  background: rgba(255,255,255,0.03);
  border-right: 1px solid var(--border);
  backdrop-filter: var(--blur);
  display: flex; flex-direction: column;
  overflow-y: auto; overflow-x: hidden;
  padding: 1.25rem 0.75rem;
  gap: 0.25rem;
}

#main-content {
  flex: 1; overflow-y: auto; padding: 2rem;
}

/* ── Glass Card ─────────────────────────────────────────── */
.glass {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  backdrop-filter: var(--blur);
}

/* ── Sidebar ────────────────────────────────────────────── */
.sidebar-logo {
  font-size: 1.2rem; font-weight: 700;
  color: var(--accent); letter-spacing: -0.02em;
  padding: 0 0.5rem 1rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 0.5rem;
}

.nav-section-label {
  font-size: 0.7rem; font-weight: 600; text-transform: uppercase;
  letter-spacing: 0.08em; color: var(--muted);
  padding: 0.75rem 0.5rem 0.25rem;
}

.nav-item {
  display: flex; align-items: center; gap: 0.6rem;
  padding: 0.55rem 0.75rem; border-radius: 8px;
  cursor: pointer; color: var(--muted);
  transition: background var(--transition), color var(--transition);
  font-size: 0.9rem; text-decoration: none;
  border: none; background: transparent; width: 100%; text-align: left;
}
.nav-item:hover { background: var(--surface); color: var(--text); }
.nav-item.active { background: var(--accent-lo); color: var(--accent); }

/* ── Page header ────────────────────────────────────────── */
.page-header { margin-bottom: 1.75rem; }
.page-header h1 { font-size: 1.5rem; font-weight: 700; letter-spacing: -0.02em; }
.page-header p { color: var(--muted); font-size: 0.9rem; margin-top: 0.25rem; }

/* ── Grid ───────────────────────────────────────────────── */
.grid-2 { display: grid; grid-template-columns: repeat(auto-fill, minmax(340px, 1fr)); gap: 1rem; }
.grid-3 { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 1rem; }

/* ── Radar Category Pills ───────────────────────────────── */
.cat-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}
.cat-pill {
  padding: 0.35rem 0.9rem;
  border-radius: 999px;
  border: 1px solid rgba(124,106,247,0.25);
  background: transparent;
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s;
}
.cat-pill:hover { border-color: var(--accent); color: var(--text); }
.cat-pill.active { background: var(--accent); border-color: var(--accent); color: #fff; }

/* ── Radar Grouping ─────────────────────────────────────── */
.group-separator {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: 0.5rem;
}
.group-separator::before, .group-separator::after {
  content: '';
  flex: 1;
  height: 1px;
  background: rgba(124,106,247,0.2);
}
.group-label {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  opacity: 0.7;
  white-space: nowrap;
}

/* ── Trend Card ─────────────────────────────────────────── */
.trend-card {
  padding: 1.25rem;
  transition: border-color var(--transition), transform var(--transition);
  cursor: default;
}
.trend-card:hover { border-color: rgba(124,106,247,0.35); transform: translateY(-2px); }

.trend-card-header { display: flex; justify-content: space-between; align-items: flex-start; gap: 0.5rem; margin-bottom: 0.75rem; }
.trend-card-title { font-weight: 600; font-size: 1rem; line-height: 1.35; }
.trend-card-meta { color: var(--muted); font-size: 0.8rem; margin-bottom: 0.6rem; }
.trend-card-summary { font-size: 0.88rem; color: var(--muted); line-height: 1.55; }

.trend-card-sources {
  margin-top: 0.9rem; padding-top: 0.75rem;
  border-top: 1px solid var(--border);
  display: flex; flex-wrap: wrap; gap: 0.4rem;
}
.source-chip {
  font-size: 0.72rem; padding: 0.2rem 0.55rem;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 20px; color: var(--muted);
}

/* ── Heat Badge ─────────────────────────────────────────── */
.heat-badge {
  display: inline-flex; align-items: center;
  font-size: 0.72rem; font-weight: 700;
  padding: 0.2rem 0.6rem; border-radius: 20px;
  white-space: nowrap; flex-shrink: 0;
}
.heat-badge.heat-critical { background: rgba(240,101,101,0.2); color: var(--danger); border: 1px solid rgba(240,101,101,0.3); }
.heat-badge.heat-high     { background: rgba(240,194,101,0.2); color: var(--warning); border: 1px solid rgba(240,194,101,0.3); }
.heat-badge.heat-medium   { background: rgba(124,106,247,0.2); color: var(--accent);  border: 1px solid rgba(124,106,247,0.3); }
.heat-badge.heat-low      { background: var(--surface); color: var(--muted); border: 1px solid var(--border); }

/* ── Source count badge ─────────────────────────────────── */
.src-count {
  font-size: 0.75rem; color: var(--muted);
  background: var(--surface); border: 1px solid var(--border);
  padding: 0.15rem 0.5rem; border-radius: 20px;
}

/* ── Weekly digest ──────────────────────────────────────── */
.digest-section { margin-bottom: 2rem; }
.digest-section h2 { font-size: 1.1rem; font-weight: 600; margin-bottom: 1rem; }
.digest-item { padding: 1rem 1.25rem; margin-bottom: 0.6rem; }
.digest-item-title { font-weight: 600; margin-bottom: 0.3rem; }
.digest-item-meta { font-size: 0.8rem; color: var(--muted); }

/* ── Category view tabs ─────────────────────────────────── */
.cat-tabs { display: flex; gap: 0.5rem; flex-wrap: wrap; margin-bottom: 1.5rem; }
.cat-tab {
  padding: 0.35rem 0.85rem; border-radius: 20px;
  border: 1px solid var(--border); background: transparent;
  color: var(--muted); cursor: pointer; font-size: 0.85rem;
  transition: all var(--transition);
}
.cat-tab:hover { border-color: var(--accent); color: var(--text); }
.cat-tab.active { background: var(--accent-lo); border-color: var(--accent); color: var(--accent); }

/* ── Forms / Settings ───────────────────────────────────── */
.settings-section { margin-bottom: 2rem; }
.settings-section h2 { font-size: 1rem; font-weight: 600; margin-bottom: 1rem; }
.form-group { margin-bottom: 1rem; }
.form-label { display: block; font-size: 0.85rem; color: var(--muted); margin-bottom: 0.4rem; }
.form-input {
  width: 100%; padding: 0.6rem 0.85rem;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 8px; color: var(--text); font-size: 0.9rem;
  outline: none; transition: border-color var(--transition);
}
.form-input:focus { border-color: var(--accent); }
.form-input::placeholder { color: var(--muted); }

.btn {
  display: inline-flex; align-items: center; gap: 0.4rem;
  padding: 0.55rem 1.1rem; border-radius: 8px;
  border: none; cursor: pointer; font-size: 0.875rem; font-weight: 500;
  transition: all var(--transition);
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: #6a59e0; }
.btn-ghost { background: var(--surface); border: 1px solid var(--border); color: var(--text); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }
.btn-danger { background: rgba(240,101,101,0.15); border: 1px solid rgba(240,101,101,0.3); color: var(--danger); }
.btn-danger:hover { background: rgba(240,101,101,0.25); }

/* ── Feeds table ────────────────────────────────────────── */
.feeds-table { width: 100%; border-collapse: collapse; font-size: 0.875rem; }
.feeds-table th { text-align: left; padding: 0.6rem 0.85rem; color: var(--muted); font-weight: 500;
  border-bottom: 1px solid var(--border); font-size: 0.8rem; }
.feeds-table td { padding: 0.65rem 0.85rem; border-bottom: 1px solid rgba(255,255,255,0.04); }
.feeds-table tr:hover td { background: var(--surface); }
.feeds-table .feed-url { color: var(--muted); font-size: 0.8rem; max-width: 300px;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* ── Status badge ───────────────────────────────────────── */
.status-dot {
  display: inline-block; width: 7px; height: 7px; border-radius: 50%;
  margin-right: 5px; vertical-align: middle;
}
.status-dot.active { background: var(--success); }
.status-dot.paused { background: var(--muted); }
.status-dot.error  { background: var(--danger); }

/* ── Pipeline control ───────────────────────────────────── */
.pipeline-card { padding: 1.25rem; margin-bottom: 1rem; display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.pipeline-info h3 { font-size: 0.95rem; font-weight: 600; }
.pipeline-info p { font-size: 0.82rem; color: var(--muted); margin-top: 0.2rem; }

/* ── Empty / loading states ─────────────────────────────── */
.empty-state {
  text-align: center; padding: 4rem 2rem; color: var(--muted);
}
.empty-state svg { opacity: 0.25; margin-bottom: 1rem; }
.empty-state p { font-size: 0.9rem; }

.spinner {
  width: 28px; height: 28px; border: 3px solid var(--border);
  border-top-color: var(--accent); border-radius: 50%;
  animation: spin 0.7s linear infinite; margin: 3rem auto;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Toast ──────────────────────────────────────────────── */
#toast-container {
  position: fixed; bottom: 1.5rem; right: 1.5rem;
  display: flex; flex-direction: column; gap: 0.5rem; z-index: 9999;
}
.toast {
  padding: 0.75rem 1.1rem; border-radius: 10px; font-size: 0.875rem;
  backdrop-filter: var(--blur); border: 1px solid var(--border);
  animation: slide-in 0.2s ease;
  max-width: 320px;
}
.toast.success { background: rgba(86,217,138,0.15); border-color: rgba(86,217,138,0.3); color: var(--success); }
.toast.error   { background: rgba(240,101,101,0.15); border-color: rgba(240,101,101,0.3); color: var(--danger); }
.toast.info    { background: var(--surface); color: var(--text); }
@keyframes slide-in { from { opacity:0; transform: translateX(20px); } to { opacity:1; transform: none; } }

/* ── Login page ─────────────────────────────────────────── */
.login-wrap {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  background: var(--bg);
}
.login-card {
  width: 100%; max-width: 380px; padding: 2.5rem 2rem;
}
.login-card h1 { font-size: 1.5rem; font-weight: 700; color: var(--accent); margin-bottom: 0.25rem; }
.login-card p  { font-size: 0.85rem; color: var(--muted); margin-bottom: 1.75rem; }

/* ── Scrollbar ──────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.2); }

/* ── Responsive ─────────────────────────────────────────── */
@media (max-width: 768px) {
  :root { --sidebar-w: 0px; }
  #sidebar { display: none; }
  #main-content { padding: 1.25rem; }
}