:root {
  --bg: #0A0A0B;
  --card: #141416;
  --card-raised: #1A1A1D;
  --border: #232326;
  --text: #EDEDEF;
  --text-secondary: #8A8A8F;
  --text-tertiary: #5C5C61;
  --accent: #6366F1;
  --accent-hover: #5253d6;
  --accent-glow: rgba(99, 102, 241, 0.08);
  --accent-light: #A5B4FC;
  --db-accent: #22D3EE;
  --db-accent-light: #67E8F9;
  --green: #22C55E;
  --yellow: #EAB308;
  --red: #EF4444;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Arial, sans-serif;
  min-height: 100vh;
}

.app { display: flex; flex-direction: column; min-height: 100vh; }

/* ---------- Header ---------- */
.top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 1.5rem;
  border-bottom: 1px solid var(--border);
  background: var(--card);
  flex-wrap: wrap;
}

.top-left { display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; }

.back-btn {
  display: inline-flex; align-items: center; gap: 0.4rem;
  background: var(--bg); border: 1px solid var(--border); color: var(--text-secondary);
  padding: 0.45rem 0.8rem; border-radius: 8px; text-decoration: none; font-size: 0.8rem;
  font-weight: 500; transition: all 0.2s; flex-shrink: 0;
}
.back-btn:hover { border-color: var(--accent); color: var(--accent); }

.top-divider { width: 1px; height: 26px; background: var(--border); flex-shrink: 0; }

.title-block { min-width: 0; }
.eyebrow {
  font-size: 0.65rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.06em;
  color: var(--accent-light); opacity: 0.85; margin-bottom: 0.1rem;
}
.top-bar h1 { font-size: 1.1rem; font-weight: 700; letter-spacing: -0.01em; }

.env-badge {
  font-size: 0.65rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase;
  background: rgba(239, 68, 68, 0.12); color: #FCA5A5; border: 1px solid rgba(239, 68, 68, 0.3);
  padding: 0.3rem 0.6rem; border-radius: 999px;
}

.status-pill {
  display: inline-flex; align-items: center; gap: 0.4rem;
  font-size: 0.75rem; font-weight: 600; color: var(--green);
  background: rgba(34, 197, 94, 0.1); border: 1px solid rgba(34, 197, 94, 0.25);
  padding: 0.3rem 0.7rem; border-radius: 999px;
}
.status-pill .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 3px rgba(34,197,94,.15); }
.status-pill.degraded { color: var(--yellow); background: rgba(234,179,8,.1); border-color: rgba(234,179,8,.25); }
.status-pill.degraded .dot { background: var(--yellow); box-shadow: 0 0 0 3px rgba(234,179,8,.15); }
.status-pill.down { color: var(--red); background: rgba(239,68,68,.1); border-color: rgba(239,68,68,.25); }
.status-pill.down .dot { background: var(--red); box-shadow: 0 0 0 3px rgba(239,68,68,.15); }

.top-right { display: flex; align-items: center; gap: 0.6rem; }

.icon-btn {
  background: var(--bg); border: 1px solid var(--border); color: var(--text-secondary);
  width: 36px; height: 36px; border-radius: 9px; cursor: pointer;
  display: flex; align-items: center; justify-content: center; transition: all 0.15s;
}
.icon-btn:hover { border-color: var(--accent); color: var(--accent); transform: rotate(45deg); }

/* ---------- Sim banner ---------- */
.sim-banner {
  display: flex; align-items: center; gap: 0.6rem;
  background: rgba(99,102,241,.08); border-bottom: 1px solid rgba(99,102,241,.2);
  color: var(--accent-light); font-size: 0.78rem; padding: 0.55rem 1.5rem;
}
.sim-banner svg { flex-shrink: 0; }

/* ---------- Content ---------- */
.content { max-width: 1320px; margin: 0 auto; padding: 1.5rem; width: 100%; }

/* ---------- Topology: two server nodes + connection ---------- */
.topology {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: stretch;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.server-node {
  background: var(--card); border: 1px solid var(--border); border-radius: 16px;
  padding: 1.1rem 1.25rem;
  display: flex; flex-direction: column; gap: 0.85rem;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
  position: relative;
  overflow: hidden;
}
.server-node::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: var(--accent-light); opacity: 0.5;
}
.server-node.db::before { background: var(--db-accent); }
.server-node:hover { border-color: var(--border); background: var(--card-raised); }
.server-node.active { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent), 0 8px 24px -8px var(--accent-glow); }
.server-node.db.active { border-color: var(--db-accent); box-shadow: 0 0 0 1px var(--db-accent), 0 8px 24px -8px rgba(34,211,238,.2); }

.server-node-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 0.6rem; }
.server-node-id { display: flex; align-items: center; gap: 0.7rem; min-width: 0; }
.server-icon {
  width: 38px; height: 38px; border-radius: 10px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  background: rgba(99,102,241,.12); color: var(--accent-light);
}
.server-node.db .server-icon { background: rgba(34,211,238,.12); color: var(--db-accent-light); }
.server-name-block { min-width: 0; }
.server-name { font-size: 0.95rem; font-weight: 700; letter-spacing: -0.01em; }
.server-role { font-size: 0.72rem; color: var(--text-secondary); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.server-meta {
  display: flex; flex-wrap: wrap; gap: 0.4rem 0.8rem;
  font-size: 0.7rem; color: var(--text-tertiary); font-family: 'SF Mono', Consolas, monospace;
}
.server-meta span { white-space: nowrap; }

.server-gauges { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.6rem; }
.gauge { display: flex; flex-direction: column; gap: 0.3rem; }
.gauge-label { font-size: 0.62rem; text-transform: uppercase; letter-spacing: 0.04em; color: var(--text-tertiary); display: flex; justify-content: space-between; }
.gauge-bar { height: 5px; border-radius: 999px; background: var(--bg); overflow: hidden; }
.gauge-fill { height: 100%; border-radius: 999px; background: var(--accent); transition: width 0.4s ease; }
.gauge-fill.warn { background: var(--yellow); }
.gauge-fill.danger { background: var(--red); }

.topology-link {
  display: flex; align-items: center; justify-content: center;
  color: var(--text-tertiary);
  padding: 0 0.25rem;
}
.topology-link svg { display: block; }
.topology-link .link-label {
  font-size: 0.6rem; text-transform: uppercase; letter-spacing: 0.05em;
  color: var(--text-tertiary); writing-mode: vertical-lr; text-orientation: mixed;
}

/* ---------- Tabs ---------- */
.view-tabs {
  display: flex; gap: 0.4rem; margin-bottom: 1.25rem;
  border-bottom: 1px solid var(--border); padding-bottom: 0;
}
.view-tab {
  display: flex; align-items: center; gap: 0.5rem;
  background: none; border: none; color: var(--text-secondary);
  padding: 0.65rem 0.9rem; font-size: 0.82rem; font-weight: 600; cursor: pointer;
  border-bottom: 2px solid transparent; margin-bottom: -1px; transition: all 0.15s;
}
.view-tab:hover { color: var(--text); }
.view-tab.active { color: var(--accent-light); border-bottom-color: var(--accent); }
.view-tab.active.db-tab { color: var(--db-accent-light); border-bottom-color: var(--db-accent); }
.view-tab .tab-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--green); }
.view-tab .tab-dot.degraded { background: var(--yellow); }
.view-tab .tab-dot.down { background: var(--red); }

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

.stats-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 0.9rem;
  margin-bottom: 1.25rem;
}
.stat-card {
  background: var(--card); border: 1px solid var(--border); border-radius: 12px;
  padding: 0.9rem 1rem;
}
.stat-label { font-size: 0.68rem; color: var(--text-secondary); text-transform: uppercase; letter-spacing: 0.04em; margin-bottom: 0.4rem; }
.stat-value { font-size: 1.4rem; font-weight: 700; letter-spacing: -0.01em; }
.stat-value.good { color: var(--green); }
.stat-value.warn { color: var(--yellow); }
.stat-value.danger { color: var(--red); }
.stat-sub { font-size: 0.68rem; color: var(--text-tertiary); margin-top: 0.15rem; }

.columns { display: grid; grid-template-columns: 1fr 340px; gap: 1.25rem; align-items: start; }
.main-col, .side-col { display: flex; flex-direction: column; gap: 1.25rem; min-width: 0; }

.panel {
  background: var(--card); border: 1px solid var(--border); border-radius: 14px;
  padding: 1.1rem 1.25rem;
}
.panel-title {
  font-size: 0.85rem; font-weight: 700; margin-bottom: 0.9rem;
  display: flex; align-items: center; justify-content: space-between; gap: 0.5rem;
}
.panel-sub { font-size: 0.7rem; font-weight: 500; color: var(--text-secondary); }

#traffic-chart, #db-chart { width: 100%; height: 180px; display: block; }

/* ---------- Table ---------- */
.table-wrap { overflow-x: auto; }
.data-table { width: 100%; border-collapse: collapse; font-size: 0.8rem; }
.data-table th {
  text-align: left; font-size: 0.68rem; text-transform: uppercase; letter-spacing: 0.04em;
  color: var(--text-secondary); padding: 0.5rem 0.6rem; border-bottom: 1px solid var(--border);
  font-weight: 600;
}
.data-table td { padding: 0.6rem 0.6rem; border-bottom: 1px solid var(--border); }
.data-table tr:last-child td { border-bottom: none; }
.method-tag {
  font-size: 0.65rem; font-weight: 700; padding: 0.15rem 0.45rem; border-radius: 5px;
  background: rgba(99,102,241,.12); color: var(--accent-light);
}
.method-tag.post { background: rgba(34,197,94,.12); color: #86EFAC; }
.method-tag.update { background: rgba(234,179,8,.12); color: #FDE047; }
.method-tag.delete { background: rgba(239,68,68,.12); color: #FCA5A5; }
.route { font-family: 'SF Mono', Consolas, monospace; font-size: 0.76rem; color: var(--text); }
.dot-status { display: inline-flex; align-items: center; gap: 0.4rem; font-size: 0.75rem; font-weight: 600; }
.dot-status::before { content: ''; width: 7px; height: 7px; border-radius: 50%; }
.dot-status.ok { color: var(--green); } .dot-status.ok::before { background: var(--green); }
.dot-status.atencion { color: var(--yellow); } .dot-status.atencion::before { background: var(--yellow); }
.dot-status.critico { color: var(--red); } .dot-status.critico::before { background: var(--red); }
.empty { color: var(--text-tertiary); font-size: 0.8rem; text-align: center; padding: 1.25rem 0; }

/* ---------- Deploy / backup list ---------- */
.deploy-list { display: flex; flex-direction: column; gap: 0.65rem; }
.deploy-row { display: flex; align-items: baseline; gap: 0.7rem; font-size: 0.8rem; padding-bottom: 0.65rem; border-bottom: 1px solid var(--border); }
.deploy-row:last-child { border-bottom: none; padding-bottom: 0; }
.deploy-version { font-family: 'SF Mono', Consolas, monospace; color: var(--accent-light); font-weight: 700; flex-shrink: 0; }
.deploy-row.backup .deploy-version { color: var(--db-accent-light); }
.deploy-note { color: var(--text); flex: 1; }
.deploy-time { color: var(--text-tertiary); font-size: 0.72rem; flex-shrink: 0; white-space: nowrap; }
.backup-type-tag {
  font-size: 0.62rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.03em;
  padding: 0.1rem 0.4rem; border-radius: 5px; background: rgba(255,255,255,.06); color: var(--text-secondary);
  flex-shrink: 0;
}

/* ---------- Actions ---------- */
.actions-panel { display: flex; flex-direction: column; gap: 0.6rem; }
.action-btn {
  display: flex; align-items: center; gap: 0.55rem;
  background: var(--bg); border: 1px solid var(--border); color: var(--text);
  padding: 0.65rem 0.9rem; border-radius: 10px; font-size: 0.82rem; font-weight: 500;
  cursor: pointer; transition: all 0.15s; text-align: left;
}
.action-btn:hover { border-color: var(--accent); color: var(--accent-light); }
.action-btn:disabled { opacity: 0.5; cursor: not-allowed; }
.action-btn.db-action:hover { border-color: var(--db-accent); color: var(--db-accent-light); }

/* ---------- Incidents ---------- */
.incident-list { display: flex; flex-direction: column; gap: 0.6rem; max-height: 260px; overflow-y: auto; }
.incident-row { padding: 0.55rem 0.7rem; border-radius: 9px; background: var(--bg); border: 1px solid var(--border); font-size: 0.78rem; }
.incident-row.critical { border-color: rgba(239,68,68,.35); }
.incident-row.warning { border-color: rgba(234,179,8,.35); }
.incident-title { font-weight: 600; margin-bottom: 0.2rem; }
.incident-meta { color: var(--text-tertiary); font-size: 0.7rem; display: flex; gap: 0.5rem; align-items: center; }
.badge-resolved { color: var(--green); }
.badge-open { color: var(--red); }

/* ---------- Live requests / queries ---------- */
.requests-panel .panel-title { margin-bottom: 0.7rem; }
.live-dot {
  width: 8px; height: 8px; border-radius: 50%; background: var(--green);
  box-shadow: 0 0 0 3px rgba(34,197,94,.15);
  animation: pulse-live 1.6s ease-in-out infinite;
}
.live-dot.db-dot { background: var(--db-accent); box-shadow: 0 0 0 3px rgba(34,211,238,.15); }
@keyframes pulse-live { 0%,100% { opacity: 1; } 50% { opacity: .35; } }

.request-log { display: flex; flex-direction: column; gap: 0.4rem; max-height: 420px; overflow-y: auto; }
.request-row {
  display: flex; align-items: center; gap: 0.5rem; font-size: 0.74rem;
  padding: 0.4rem 0.55rem; border-radius: 8px; background: var(--bg);
}
.request-row .method-tag { flex-shrink: 0; }
.request-row .route { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--text-secondary); }
.request-row .status-code { font-weight: 700; flex-shrink: 0; }
.request-row .status-code.ok2 { color: var(--green); }
.request-row .status-code.err2 { color: var(--red); }
.request-row .latency { color: var(--text-tertiary); flex-shrink: 0; font-size: 0.7rem; }

.query-row {
  display: flex; align-items: center; gap: 0.5rem; font-size: 0.72rem;
  padding: 0.4rem 0.55rem; border-radius: 8px; background: var(--bg);
}
.query-row .kind-tag { flex-shrink: 0; }
.query-row .query-text {
  flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
  color: var(--text-secondary); font-family: 'SF Mono', Consolas, monospace; font-size: 0.68rem;
}
.query-row.lock_wait { border: 1px solid rgba(234,179,8,.3); }
.query-row .app-name { color: var(--text-tertiary); font-size: 0.66rem; flex-shrink: 0; white-space: nowrap; }
.query-row .latency { color: var(--text-tertiary); flex-shrink: 0; font-size: 0.7rem; }
.query-row .lock-badge { color: var(--yellow); font-weight: 700; flex-shrink: 0; font-size: 0.66rem; }

/* ---------- Toast ---------- */
#toast {
  position: fixed; bottom: 1.5rem; right: 1.5rem;
  background: var(--card-raised); border: 1px solid var(--border);
  color: var(--text); font-size: 0.8rem;
  padding: 0.8rem 1.2rem; border-radius: 10px;
  display: none; z-index: 99; box-shadow: 0 8px 24px rgba(0,0,0,.4);
}
#toast.ok { border-color: var(--green); color: var(--green); }
#toast.err { border-color: var(--red); color: var(--red); }

@media (max-width: 1000px) {
  .topology { grid-template-columns: 1fr; }
  .topology-link { transform: rotate(90deg); padding: 0.5rem 0; }
}
@media (max-width: 900px) {
  .stats-grid { grid-template-columns: repeat(3, 1fr); }
  .columns { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .server-gauges { grid-template-columns: 1fr 1fr 1fr; }
}