/* ═══════════════════════════════════════════════════════════════════════════════
   DB_OPS // PostgreSQL Cluster Observability Console
   Modern Light Theme (SRE Operations Command Center)
   Supports Light Mode (Default) & Dark Mode via [data-theme="dark"]
   ═══════════════════════════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600;700&display=swap');

/* ─── Light Mode Variables (Default) ────────────────────────────────────────── */
:root, [data-theme="light"] {
  --bg-core:          #f8fafc;
  --bg-core-gradient: radial-gradient(at 10% 10%, rgba(37, 99, 235, 0.05) 0px, transparent 40%),
                      radial-gradient(at 90% 85%, rgba(16, 185, 129, 0.04) 0px, transparent 40%),
                      radial-gradient(at 50% 0%, rgba(241, 245, 249, 0.8) 0px, transparent 60%);
  --bg-card:          #ffffff;
  --bg-card-hover:    #fcfcfd;
  --bg-subtle:        #f1f5f9;
  --bg-glass:         rgba(255, 255, 255, 0.85);

  --border-subtle:    #e2e8f0;
  --border-hover:     #cbd5e1;
  --border-glow:      rgba(37, 99, 235, 0.25);

  --primary:          #2563eb;
  --primary-hover:    #1d4ed8;
  --primary-subtle:   #eff6ff;

  --cyan-primary:     #0284c7;
  --cyan-bright:      #0369a1;
  --cyan-bg:          #e0f2fe;

  --emerald-live:     #059669;
  --emerald-bg:       #ecfdf5;
  --emerald-border:   #a7f3d0;
  --emerald-text:     #047857;

  --amber-warn:       #d97706;
  --amber-bg:         #fffbeb;
  --amber-border:     #fde68a;
  --amber-text:       #b45309;

  --rose-crit:        #e11d48;
  --rose-bg:          #fff1f2;
  --rose-border:      #fecdd3;
  --rose-text:        #b91c1c;

  --text-main:        #0f172a;
  --text-secondary:   #334155;
  --text-muted:       #64748b;
  --text-dim:         #94a3b8;

  --nav-bg:           #e2e8f0;
  --nav-btn-text:     #475569;
  --nav-btn-active-bg: #ffffff;
  --nav-btn-active-text: #0f172a;

  --table-head-bg:    #f8fafc;
  --table-border:     #f1f5f9;
  --table-hover:      #f8fafc;

  --shadow-sm:        0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-card:      0 1px 3px rgba(0, 0, 0, 0.05), 0 10px 25px -5px rgba(0, 0, 0, 0.04);
  --shadow-modal:     0 20px 45px -10px rgba(15, 23, 42, 0.15);

  --input-bg:         #ffffff;
  --input-border:     #cbd5e1;
  --input-text:       #0f172a;

  --font-sans:        'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono:        'JetBrains Mono', monospace;

  --radius-sm:        6px;
  --radius-md:        10px;
  --radius-lg:        16px;

  --transition:       0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ─── Dark Mode Overrides (Available via Toggle) ────────────────────────────── */
[data-theme="dark"] {
  --bg-core:          #06080e;
  --bg-core-gradient: radial-gradient(at 15% 10%, rgba(6, 182, 212, 0.08) 0px, transparent 45%),
                      radial-gradient(at 85% 85%, rgba(16, 185, 129, 0.05) 0px, transparent 50%),
                      radial-gradient(at 50% 0%, rgba(30, 41, 59, 0.4) 0px, transparent 60%);
  --bg-card:          #0c101b;
  --bg-card-hover:    #101625;
  --bg-subtle:        rgba(255, 255, 255, 0.04);
  --bg-glass:         rgba(12, 16, 27, 0.85);

  --border-subtle:    rgba(255, 255, 255, 0.08);
  --border-hover:     rgba(255, 255, 255, 0.16);
  --border-glow:      rgba(6, 182, 212, 0.35);

  --primary:          #06b6d4;
  --primary-hover:    #22d3ee;
  --primary-subtle:   rgba(6, 182, 212, 0.15);

  --cyan-primary:     #06b6d4;
  --cyan-bright:      #22d3ee;
  --cyan-bg:          rgba(6, 182, 212, 0.15);

  --emerald-live:     #10b981;
  --emerald-bg:       rgba(16, 185, 129, 0.15);
  --emerald-border:   rgba(16, 185, 129, 0.4);
  --emerald-text:     #34d399;

  --amber-warn:       #f59e0b;
  --amber-bg:         rgba(245, 158, 11, 0.15);
  --amber-border:     rgba(245, 158, 11, 0.4);
  --amber-text:       #fbbf24;

  --rose-crit:        #f43f5e;
  --rose-bg:          rgba(244, 63, 94, 0.15);
  --rose-border:      rgba(244, 63, 94, 0.4);
  --rose-text:        #fb7185;

  --text-main:        #f8fafc;
  --text-secondary:   #cbd5e1;
  --text-muted:       #94a3b8;
  --text-dim:         #475569;

  --nav-bg:           rgba(12, 16, 27, 0.8);
  --nav-btn-text:     #94a3b8;
  --nav-btn-active-bg: linear-gradient(135deg, rgba(6, 182, 212, 0.2), rgba(16, 185, 129, 0.15));
  --nav-btn-active-text: #ffffff;

  --table-head-bg:    rgba(255, 255, 255, 0.02);
  --table-border:     rgba(255, 255, 255, 0.04);
  --table-hover:      rgba(6, 182, 212, 0.03);

  --shadow-sm:        0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-card:      0 10px 30px -10px rgba(0, 0, 0, 0.7);
  --shadow-modal:     0 0 50px rgba(6, 182, 212, 0.2);

  --input-bg:         rgba(255, 255, 255, 0.04);
  --input-border:     rgba(255, 255, 255, 0.08);
  --input-text:       #f8fafc;
}

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

body {
  font-family: var(--font-sans);
  background: var(--bg-core);
  background-image: var(--bg-core-gradient);
  background-attachment: fixed;
  color: var(--text-main);
  min-height: 100vh;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  transition: background-color 0.25s ease, color 0.25s ease;
}

/* ─── Scrollbars ────────────────────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(148, 163, 184, 0.4); border-radius: 99px; }
::-webkit-scrollbar-thumb:hover { background: rgba(37, 99, 235, 0.6); }

/* ─── App Container (Wide Command Center) ───────────────────────────────────── */
.console-container {
  max-width: 1560px;
  margin: 0 auto;
  padding: 0 24px 60px;
}

/* ─── Top Command Bar ───────────────────────────────────────────────────────── */
.console-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0;
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 16px;
}
.brand-box {
  display: flex;
  align-items: center;
  gap: 14px;
}
.brand-icon-wrap {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.12), rgba(16, 185, 129, 0.08));
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  box-shadow: var(--shadow-sm);
}
.brand-title {
  font-size: 19px;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 8px;
}
.brand-title .tag {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 4px;
  background: var(--primary-subtle);
  color: var(--primary);
  border: 1px solid rgba(37, 99, 235, 0.2);
}
.brand-sub {
  font-size: 12px;
  color: var(--text-muted);
  font-family: var(--font-mono);
  margin-top: 2px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

/* ─── Cluster Topology Ribbon ───────────────────────────────────────────────── */
.cluster-ribbon {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 18px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  margin-bottom: 24px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-muted);
  box-shadow: var(--shadow-sm);
}
.ribbon-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--emerald-live);
  box-shadow: 0 0 10px rgba(16, 185, 129, 0.6);
  animation: pulseDot 2s infinite;
}
@keyframes pulseDot {
  0%, 100% { opacity: 0.8; transform: scale(0.95); }
  50% { opacity: 1; transform: scale(1.2); }
}
.ribbon-stream {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--cyan-bright);
  font-size: 11.5px;
  font-weight: 600;
}
.ribbon-node-label {
  color: var(--text-main);
  font-weight: 700;
}

/* ─── Segmented Nav Tabs ────────────────────────────────────────────────────── */
.nav-segmented {
  display: flex;
  gap: 6px;
  background: var(--nav-bg);
  padding: 4px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  margin-bottom: 24px;
  overflow-x: auto;
}
.nav-tab-btn {
  background: transparent;
  border: none;
  color: var(--nav-btn-text);
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 600;
  padding: 8px 18px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
  transition: var(--transition);
}
.nav-tab-btn:hover {
  color: var(--text-main);
}
.nav-tab-btn.active {
  color: var(--nav-btn-active-text);
  background: var(--nav-btn-active-bg);
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-sm);
  font-weight: 700;
}
.tab-badge {
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 1px 7px;
  border-radius: 99px;
  background: rgba(100, 116, 139, 0.15);
  color: var(--text-secondary);
}
.nav-tab-btn.active .tab-badge {
  background: var(--primary);
  color: #ffffff;
  font-weight: 700;
}

/* ─── Buttons ───────────────────────────────────────────────────────────────── */
.btn {
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition);
  border: 1px solid transparent;
}
.btn-primary {
  background: linear-gradient(135deg, #2563eb, #1d4ed8);
  color: #ffffff;
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.25);
}
.btn-primary:hover {
  background: linear-gradient(135deg, #3b82f6, #2563eb);
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35);
  transform: translateY(-1px);
}
.btn-ghost {
  background: var(--bg-card);
  color: var(--text-secondary);
  border-color: var(--border-subtle);
  box-shadow: var(--shadow-sm);
}
.btn-ghost:hover {
  background: var(--bg-subtle);
  color: var(--text-main);
  border-color: var(--border-hover);
}
.btn-danger {
  background: var(--rose-bg);
  color: var(--rose-text);
  border-color: var(--rose-border);
}
.btn-danger:hover {
  background: #fee2e2;
}
.btn-sm {
  font-size: 12px;
  padding: 5px 12px;
}

/* ─── Node Cards (Cluster Overview) ─────────────────────────────────────────── */
.nodes-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 24px;
}
@media (max-width: 1024px) {
  .nodes-grid { grid-template-columns: 1fr; }
}

.node-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 24px 26px;
  box-shadow: var(--shadow-card);
  position: relative;
  overflow: hidden;
  transition: var(--transition);
}
.node-card:hover {
  border-color: var(--border-glow);
  box-shadow: 0 10px 30px -5px rgba(0, 0, 0, 0.08);
  transform: translateY(-2px);
}
.node-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
}
.node-card.master::before {
  background: linear-gradient(90deg, #2563eb, #059669);
}
.node-card.replica::before {
  background: linear-gradient(90deg, #0284c7, #3b82f6);
}

.node-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 20px;
}
.node-info {
  display: flex;
  align-items: center;
  gap: 12px;
}
.node-role-icon {
  font-size: 26px;
}
.node-name {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-main);
}
.node-addr {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--cyan-bright);
  margin-top: 2px;
  font-weight: 500;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: 99px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 600;
  text-transform: uppercase;
}
.status-badge.healthy { background: var(--emerald-bg); color: var(--emerald-text); border: 1px solid var(--emerald-border); }
.status-badge.degraded { background: var(--amber-bg); color: var(--amber-text); border: 1px solid var(--amber-border); }
.status-badge.offline { background: var(--rose-bg); color: var(--rose-text); border: 1px solid var(--rose-border); }
.status-badge.pending { background: var(--bg-subtle); color: var(--text-muted); border: 1px solid var(--border-subtle); }

.node-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 20px;
}
@media (max-width: 600px) {
  .node-metrics { grid-template-columns: 1fr 1fr; }
}

.telemetry-cell {
  background: var(--bg-subtle);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 12px 14px;
}
.cell-value {
  font-family: var(--font-mono);
  font-size: 19px;
  font-weight: 700;
  color: var(--text-main);
  display: flex;
  align-items: baseline;
  gap: 4px;
}
.cell-value.highlight-cyan { color: var(--cyan-bright); }
.cell-value.highlight-rose { color: var(--rose-crit); }
.cell-value.highlight-emerald { color: var(--emerald-live); }
.cell-value .unit {
  font-size: 11px;
  color: var(--text-muted);
  font-weight: 500;
}
.cell-label {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-top: 4px;
}

.capacity-meter {
  margin-top: 10px;
}
.meter-header {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  font-family: var(--font-mono);
  color: var(--text-muted);
  margin-bottom: 6px;
  font-weight: 500;
}
.meter-bar {
  height: 7px;
  background: var(--border-subtle);
  border-radius: 99px;
  overflow: hidden;
}
.meter-fill {
  height: 100%;
  border-radius: 99px;
  transition: width 0.3s ease;
}
.meter-fill.normal { background: linear-gradient(90deg, #10b981, #0284c7); }
.meter-fill.warning { background: linear-gradient(90deg, #f59e0b, #fbbf24); }
.meter-fill.critical { background: linear-gradient(90deg, #ef4444, #f87171); }

/* ─── Data Tables & Filter Toolbar ──────────────────────────────────────────── */
.filter-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 12px 18px;
  margin-bottom: 16px;
  flex-wrap: wrap;
  gap: 12px;
  box-shadow: var(--shadow-sm);
}
.filter-group {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.input-select, .input-search {
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: var(--radius-sm);
  color: var(--input-text);
  font-family: var(--font-sans);
  font-size: 13px;
  padding: 7px 12px;
  outline: none;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}
.input-select:focus, .input-search:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}
.input-select option {
  background: var(--bg-card);
  color: var(--text-main);
}

.table-wrapper {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}
.console-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}
.console-table th {
  background: var(--table-head-bg);
  color: var(--text-muted);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border-subtle);
}
.console-table td {
  padding: 14px 18px;
  border-bottom: 1px solid var(--table-border);
  font-size: 13px;
  vertical-align: middle;
  color: var(--text-secondary);
}
.console-table tbody tr:hover {
  background: var(--table-hover);
}

.pill-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  padding: 2px 7px;
  border-radius: 4px;
}
.pill-tag.master { background: var(--cyan-bg); color: var(--cyan-bright); border: 1px solid rgba(2, 132, 199, 0.2); }
.pill-tag.replica { background: #eff6ff; color: #1d4ed8; border: 1px solid rgba(37, 99, 235, 0.2); }
.pill-tag.active { background: var(--emerald-bg); color: var(--emerald-text); border: 1px solid var(--emerald-border); }
.pill-tag.idle-tx { background: var(--amber-bg); color: var(--amber-text); border: 1px solid var(--amber-border); }
.pill-tag.running { background: #fef3c7; color: #b45309; border: 1px solid #fde68a; font-weight: 700; }
.pill-tag.finished { background: var(--bg-subtle); color: var(--text-muted); border: 1px solid var(--border-subtle); }

.dur-pill {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 12px;
}
.dur-pill.slow { color: var(--rose-crit); }
.dur-pill.medium { color: var(--amber-warn); }
.dur-pill.fast { color: var(--emerald-live); }

.code-snippet {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-main);
  max-width: 440px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  display: block;
  cursor: pointer;
}
.code-snippet:hover {
  color: var(--primary);
  text-decoration: underline;
}

/* ─── Modal / Query Inspector ───────────────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.5);
  backdrop-filter: blur(6px);
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.modal-window {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 900px;
  padding: 28px;
  box-shadow: var(--shadow-modal);
  max-height: 90vh;
  overflow-y: auto;
}
.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}
.modal-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 10px;
}
.modal-meta-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-bottom: 20px;
}
@media (max-width: 768px) {
  .modal-meta-grid { grid-template-columns: 1fr 1fr; }
}
.modal-meta-box {
  background: var(--bg-subtle);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
}
.meta-box-label {
  font-size: 10.5px;
  color: var(--text-muted);
  text-transform: uppercase;
  font-weight: 600;
}
.meta-box-val {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  color: var(--text-main);
  margin-top: 3px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.sql-view-container {
  position: relative;
  margin-bottom: 20px;
}
.sql-box {
  background: #0f172a;
  border: 1px solid #1e293b;
  border-radius: var(--radius-md);
  padding: 16px;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.6;
  color: #f1f5f9;
  max-height: 320px;
  overflow-y: auto;
  white-space: pre-wrap;
  word-break: break-all;
}

/* ─── Security Lock Screen ──────────────────────────────────────────────────── */
.lock-screen-wrapper {
  position: fixed;
  inset: 0;
  background: var(--bg-core);
  background-image: var(--bg-core-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10000;
  padding: 24px;
}
.lock-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 38px 34px;
  max-width: 440px;
  width: 100%;
  box-shadow: 0 20px 50px -10px rgba(15, 23, 42, 0.12);
  text-align: center;
}
.lock-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--primary-subtle);
  border: 1px solid rgba(37, 99, 235, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  margin: 0 auto 18px;
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.15);
}
.lock-title {
  font-size: 20px;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 6px;
}
.lock-desc {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 24px;
  line-height: 1.5;
}
.lock-desc code {
  background: var(--bg-subtle);
  padding: 2px 5px;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  border: 1px solid var(--border-subtle);
}
.lock-input {
  width: 100%;
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: var(--radius-md);
  color: var(--input-text);
  font-family: var(--font-mono);
  font-size: 15px;
  padding: 12px 16px;
  margin-bottom: 16px;
  outline: none;
  text-align: center;
  letter-spacing: 2px;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}
.lock-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.18);
}
.lock-error {
  color: var(--rose-crit);
  font-size: 12.5px;
  margin-bottom: 14px;
  font-weight: 500;
}

.hidden { display: none !important; }