/* SCADA-style: fundo escuro, painéis com borda, alto contraste para leitura à distância */
:root {
  --bg-deep: #0a0e14;
  --bg-panel: #121820;
  --bg-panel2: #0d1218;
  --border: #2a3544;
  --text: #c8d0dc;
  --text-dim: #6b7788;
  --accent: #00a8cc;
  --accent-dim: #006080;
  --ok: #2ecc71;
  --warn: #f1c40f;
  --alarm: #e74c3c;
  --pump-on: #27ae60;
  --pump-off: #34495e;
  --pipe: #3d4f63;
  --font-ui: "Segoe UI", system-ui, -apple-system, sans-serif;
  --font-mono: "Consolas", "Cascadia Mono", monospace;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  min-height: 100%;
  background: var(--bg-deep);
  color: var(--text);
  font-family: var(--font-ui);
  font-size: 14px;
}

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

/* Barra superior estilo SCADA */
.top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding: 10px 16px;
  background: linear-gradient(180deg, #151c26 0%, var(--bg-panel) 100%);
  border-bottom: 2px solid var(--border);
}

.brand {
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.brand h1 {
  margin: 0;
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: #e8ecf0;
}

.brand span {
  font-size: 0.75rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

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

.clock {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--accent);
  padding: 6px 12px;
  background: var(--bg-panel2);
  border: 1px solid var(--border);
  border-radius: 4px;
}

.btn {
  font: inherit;
  cursor: pointer;
  padding: 8px 14px;
  border-radius: 4px;
  border: 1px solid var(--border);
  background: var(--bg-panel2);
  color: var(--text);
}

.btn:hover {
  border-color: var(--accent);
  color: #fff;
}

.btn-primary {
  background: var(--accent-dim);
  border-color: var(--accent);
  color: #fff;
}

.btn-primary:hover {
  background: var(--accent);
}

.conn-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border-radius: 4px;
  font-size: 0.8rem;
  border: 1px solid var(--border);
  background: var(--bg-panel2);
}

.conn-pill .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--text-dim);
}

.conn-pill.connected .dot {
  background: var(--ok);
  box-shadow: 0 0 8px var(--ok);
}

.conn-pill.sim .dot {
  background: var(--warn);
}

/* Painel IHM (ESP32): on-line / off-line conforme heartbeat MQTT */
.panel-pill.panel-on .dot {
  background: var(--ok);
  box-shadow: 0 0 8px var(--ok);
}

.panel-pill.panel-off .dot {
  background: #e74c3c;
  box-shadow: 0 0 6px rgba(231, 76, 60, 0.45);
}

.panel-pill.panel-wait .dot {
  background: var(--warn);
}

.panel-pill.panel-na .dot {
  background: var(--text-dim);
}

/* PIC / RS-485 (via heartbeat ESP32) */
.pic-pill.pic-on .dot {
  background: var(--ok);
  box-shadow: 0 0 8px var(--ok);
}

.pic-pill.pic-off .dot {
  background: #e74c3c;
  box-shadow: 0 0 6px rgba(231, 76, 60, 0.45);
}

.pic-pill.pic-stub .dot {
  background: var(--warn);
}

.pic-pill.pic-wait .dot {
  background: #7f8c8d;
}

.pic-pill.pic-na .dot {
  background: var(--text-dim);
}

/* Faixa de alarmes */
.alarm-strip {
  min-height: 36px;
  padding: 8px 16px;
  background: #1a1518;
  border-bottom: 1px solid #3d2528;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.alarm-strip.empty {
  background: var(--bg-panel2);
  border-bottom-color: var(--border);
}

.alarm-strip .label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--alarm);
  font-weight: 700;
}

.alarm-item {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  padding: 4px 10px;
  background: rgba(231, 76, 60, 0.15);
  border: 1px solid rgba(231, 76, 60, 0.45);
  border-radius: 3px;
  color: #f5a9a0;
}

.alarm-strip.empty .alarm-placeholder {
  color: var(--text-dim);
  font-size: 0.85rem;
}

/* Corpo principal */
.main-grid {
  flex: 1;
  display: grid;
  grid-template-columns: 1fr minmax(280px, 340px);
  gap: 12px;
  padding: 12px 16px 16px;
  max-width: 1400px;
  margin: 0 auto;
  width: 100%;
}

@media (max-width: 960px) {
  .main-grid {
    grid-template-columns: 1fr;
  }
}

.panel {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
}

.panel-header {
  padding: 8px 12px;
  background: var(--bg-panel2);
  border-bottom: 1px solid var(--border);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  font-weight: 600;
}

.panel-body {
  padding: 14px;
}

/* Mimic: reservatório, tubulação, bombas */
.mimic {
  position: relative;
  min-height: 320px;
  background:
    linear-gradient(180deg, #0e1318 0%, #0a0d12 100%);
  border: 1px solid var(--border);
  border-radius: 4px;
}

.mimic-svg {
  width: 100%;
  height: auto;
  display: block;
}

/* Fotos das bombas no P&ID (fundo branco da foto integra melhor com recorte arredondado) */
.mimic-svg image.pump-photo {
  image-rendering: auto;
}

/* Fluxo d’água animado (inferior → superior) quando bomba ligada */
.mimic-svg .flow-trace {
  opacity: 0;
  transition: opacity 0.35s ease;
  pointer-events: none;
}

.mimic-svg .flow-trace.flow-on {
  opacity: 0.95;
  animation: mimic-flow-dash 0.65s linear infinite;
}

@keyframes mimic-flow-dash {
  to {
    stroke-dashoffset: -20;
  }
}

.tag-float {
  position: absolute;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-dim);
  pointer-events: none;
}

/* Tabela de tags SCADA */
.tag-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

.tag-table th {
  text-align: left;
  padding: 8px 10px;
  color: var(--text-dim);
  font-weight: 600;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  border-bottom: 1px solid var(--border);
}

.tag-table td {
  padding: 10px;
  border-bottom: 1px solid rgba(42, 53, 68, 0.6);
  font-family: var(--font-mono);
}

.tag-table tr:last-child td {
  border-bottom: none;
}

.tag-name {
  color: var(--accent);
}

.tag-value {
  text-align: right;
  color: #e8ecf0;
}

.quality-bad {
  color: var(--alarm);
}

.quality-good {
  color: var(--ok);
}

/* Modo operação */
.mode-badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.mode-manual {
  background: rgba(241, 196, 15, 0.2);
  color: var(--warn);
  border: 1px solid rgba(241, 196, 15, 0.5);
}

.mode-auto {
  background: rgba(46, 204, 113, 0.15);
  color: var(--ok);
  border: 1px solid rgba(46, 204, 113, 0.45);
}

.mode-reversao {
  background: rgba(0, 168, 204, 0.15);
  color: var(--accent);
  border: 1px solid rgba(0, 168, 204, 0.45);
}

/* Rodapé */
.status-bar {
  padding: 8px 16px;
  border-top: 1px solid var(--border);
  background: var(--bg-panel2);
  font-size: 0.75rem;
  color: var(--text-dim);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}

.hint {
  font-size: 0.72rem;
  color: var(--text-dim);
  margin-top: 10px;
  line-height: 1.5;
}

/* Fases L1 L2 L3 */
.phase-leds {
  display: flex;
  gap: 8px;
  margin-top: 12px;
  justify-content: center;
}

.phase-led {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 2px solid var(--border);
  background: var(--pump-off);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.65rem;
  font-weight: 700;
  color: var(--text-dim);
}

.phase-led.ok {
  background: rgba(46, 204, 113, 0.35);
  border-color: var(--ok);
  color: var(--ok);
  box-shadow: 0 0 12px rgba(46, 204, 113, 0.25);
}

.phase-led.bad {
  background: rgba(231, 76, 60, 0.35);
  border-color: var(--alarm);
  color: var(--alarm);
}

.boia-indicator {
  margin-top: 8px;
  text-align: center;
  font-size: 0.8rem;
}

.boia-indicator span.on {
  color: var(--ok);
}

.boia-indicator span.off {
  color: var(--text-dim);
}

/* Arquitetura: PIC — RS485 — ESP32 — MQTT */
.arch-strip {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px 14px;
  padding: 8px 16px;
  background: #0c1016;
  border-bottom: 1px solid var(--border);
  font-size: 0.78rem;
  color: var(--text-dim);
}

.arch-strip strong {
  color: #9aa5b5;
  font-weight: 600;
}

.arch-flow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  font-family: var(--font-mono);
}

.arch-node {
  padding: 3px 8px;
  background: var(--bg-panel2);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text);
}

.arch-link {
  color: var(--accent);
  font-size: 0.7rem;
  letter-spacing: 0.04em;
}

/* MQTT */
.mqtt-bar {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px 14px;
  padding: 10px 16px;
  background: var(--bg-panel2);
  border-bottom: 1px solid var(--border);
}

.mqtt-bar label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  color: var(--text-dim);
}

.mqtt-bar input[type="text"] {
  min-width: 220px;
  padding: 6px 10px;
  border-radius: 4px;
  border: 1px solid var(--border);
  background: var(--bg-deep);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.8rem;
}

.mqtt-bar input#mqtt-topic {
  min-width: 180px;
}

#mqtt-status {
  font-size: 0.72rem;
  color: var(--text-dim);
  max-width: 280px;
}

#mqtt-status.err {
  color: var(--alarm);
}

#mqtt-status.ok {
  color: var(--ok);
}

/* Mimic: P&ID em largura total */
.mimic-layout {
  display: flex;
  flex-direction: column;
  gap: 14px;
  align-items: stretch;
}

.mimic-pid-wide .mimic-svg {
  min-height: 200px;
}

.mimic-pid {
  min-width: 0;
}