:root {
  color-scheme: dark;
  --bg: #05070c;
  --bg-elevated: #0e121b;
  --bg-card: #12161f;
  --bg-hover: #1a2030;
  --border: #232838;
  --border-soft: #1b202e;
  --text: #e8eaf0;
  --text-dim: #8b93a7;
  --text-faint: #5b6273;
  --blue: #3b9dff;
  --blue-dim: rgba(59, 157, 255, 0.14);
  --orange: #ff8a3d;
  --orange-dim: rgba(255, 138, 61, 0.14);
  --danger: #ff5470;
  --danger-dim: rgba(255, 84, 112, 0.14);
  --yellow: #e8c547;
  --yellow-dim: rgba(232, 197, 71, 0.14);
  --gray: #8b93a7;
  --gray-dim: rgba(139, 147, 167, 0.14);
  --radius: 12px;
  --shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
  --shadow-hover: 0 14px 32px rgba(0, 0, 0, 0.45);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* { box-sizing: border-box; }

html, body {
  height: 100%;
}

html {
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 999px;
  border: 2px solid var(--bg-elevated);
}
::-webkit-scrollbar-thumb:hover { background: var(--text-faint); }

body {
  margin: 0;
  font-family: "Segoe UI", -apple-system, Roboto, Arial, sans-serif;
  background:
    radial-gradient(circle at 15% -10%, rgba(59, 157, 255, 0.08), transparent 40%),
    radial-gradient(circle at 90% 0%, rgba(255, 138, 61, 0.07), transparent 35%),
    var(--bg);
  color: var(--text);
  display: flex;
  min-height: 100vh;
  animation: page-fade-in 0.35s var(--ease);
}

@keyframes page-fade-in {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes pulse-dot {
  0%, 100% { box-shadow: 0 0 0 0 currentColor; opacity: 1; }
  70% { box-shadow: 0 0 0 5px transparent; opacity: 0.7; }
}

/* ---------- Sidebar ---------- */

.sidebar {
  width: 240px;
  flex-shrink: 0;
  background: var(--bg-elevated);
  border-right: 1px solid var(--border-soft);
  display: flex;
  flex-direction: column;
  padding: 1.4rem 1rem;
  position: sticky;
  top: 0;
  height: 100vh;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0 0.4rem 1.6rem;
  margin-bottom: 1rem;
  border-bottom: 1px solid var(--border-soft);
}

.brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 9px;
  background: linear-gradient(135deg, var(--orange), var(--blue));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.95rem;
  color: #04060a;
  flex-shrink: 0;
  box-shadow: 0 4px 16px rgba(255, 138, 61, 0.3);
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.brand-text strong {
  font-size: 0.95rem;
  letter-spacing: 0.02em;
}

.brand-text span {
  font-size: 0.72rem;
  color: var(--text-faint);
}

.nav-links {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  overflow-y: auto;
}

.nav-group-label {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-faint);
  padding: 0.9rem 0.7rem 0.3rem;
}

.nav-group-label:first-child { padding-top: 0.2rem; }

.nav-links a {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.6rem 0.7rem;
  border-radius: 9px;
  color: var(--text-dim);
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 500;
  position: relative;
  transition: background 0.15s var(--ease), color 0.15s var(--ease), transform 0.15s var(--ease);
}

.nav-links a svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  opacity: 0.85;
  transition: opacity 0.15s var(--ease), transform 0.15s var(--ease);
}

.nav-links a:hover {
  background: var(--bg-hover);
  color: var(--text);
  transform: translateX(2px);
}

.nav-links a:hover svg { transform: scale(1.08); }

.nav-links a.active {
  background: var(--orange-dim);
  color: var(--orange);
}

.nav-links a.active::before {
  content: "";
  position: absolute;
  left: -1rem;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 60%;
  border-radius: 0 3px 3px 0;
  background: var(--orange);
}

.nav-links a.active svg { opacity: 1; }

.sidebar-footer {
  margin-top: auto;
  padding-top: 1rem;
  border-top: 1px solid var(--border-soft);
  font-size: 0.72rem;
  color: var(--text-faint);
}

/* ---------- Main ---------- */

main {
  flex: 1;
  padding: 2rem 2.5rem 3rem;
  max-width: 1180px;
}

.page-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 1.6rem;
}

.page-header h1 {
  font-size: 1.4rem;
  margin: 0;
  letter-spacing: -0.01em;
}

.page-header .subtitle {
  color: var(--text-faint);
  font-size: 0.85rem;
  margin-top: 0.15rem;
}

.section-title {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-faint);
  margin: 2rem 0 0.9rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.section-title:first-of-type { margin-top: 0; }

/* ---------- KPI tiles (resumo executivo) ---------- */

.kpi-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-bottom: 1.8rem;
}

.kpi-tile {
  background: linear-gradient(160deg, var(--bg-card), var(--bg-elevated));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.3rem 1.4rem;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease), border-color 0.2s var(--ease);
}

.kpi-tile:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
  border-color: var(--border-soft);
}

.kpi-value {
  font-size: 2.1rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text);
}

.kpi-accent-blue .kpi-value { color: var(--blue); }
.kpi-accent-orange .kpi-value { color: var(--orange); }

.kpi-label {
  font-size: 0.78rem;
  color: var(--text-faint);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.uptime-big {
  font-size: 2rem;
  font-weight: 800;
  color: var(--blue);
  margin: 0.4rem 0 0.1rem;
}

/* ---------- Controle de link manual ---------- */

.link-control-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.link-control-buttons form { margin: 0; }

.btn-small {
  font-size: 0.78rem;
  font-weight: 700;
  padding: 0.4rem 0.7rem;
  border-radius: 7px;
  border: 1px solid var(--border);
  background: var(--blue-dim);
  color: var(--blue);
  cursor: pointer;
  transition: filter 0.15s var(--ease), transform 0.15s var(--ease);
}

.btn-small:hover { filter: brightness(1.15); transform: translateY(-1px); }
.btn-small:active { transform: translateY(0); }

.btn-small-warn {
  background: var(--orange-dim);
  color: var(--orange);
}

.btn-small-ghost {
  background: transparent;
  color: var(--text-faint);
}

/* ---------- Cards ---------- */

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1rem;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.1rem 1.2rem;
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
  transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease), border-color 0.2s var(--ease);
}

.card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
  border-color: var(--border-soft);
}

.card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: var(--text-faint);
  transition: width 0.2s var(--ease);
}

.card:hover::before { width: 4px; }

.card-ok::before { background: var(--blue); }
.card-down::before { background: var(--danger); }

.card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.7rem;
}

.card h2 {
  font-size: 1rem;
  margin: 0;
  font-weight: 600;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.22rem 0.55rem;
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.badge::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}

.badge-ok { background: var(--blue-dim); color: var(--blue); }
.badge-down { background: var(--danger-dim); color: var(--danger); }
.badge-warn { background: var(--orange-dim); color: var(--orange); }

.badge-ok::before, .equip-status-ONLINE::before {
  animation: pulse-dot 1.8s infinite;
}

.metric-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem 1rem;
  margin-top: 0.6rem;
}

.metric {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
}

.metric .label {
  font-size: 0.68rem;
  color: var(--text-faint);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.metric .value {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text);
}

.metric .value.accent-blue { color: var(--blue); }
.metric .value.accent-orange { color: var(--orange); }

.link-pill {
  display: inline-block;
  margin-top: 0.5rem;
  font-size: 0.78rem;
  font-weight: 600;
  padding: 0.25rem 0.6rem;
  border-radius: 7px;
  background: var(--blue-dim);
  color: var(--blue);
  text-decoration: none;
  transition: filter 0.15s var(--ease), transform 0.15s var(--ease);
}

a.link-pill:hover { filter: brightness(1.15); transform: translateY(-1px); }

.link-pill.warn { background: var(--orange-dim); color: var(--orange); }

.muted { color: var(--text-faint); font-size: 0.78rem; margin-top: 0.7rem; }

/* ---------- Table ---------- */

.table-wrap {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

table.events {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

table.events th {
  text-align: left;
  padding: 0.65rem 0.9rem;
  background: var(--bg-elevated);
  color: var(--text-faint);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
  border-bottom: 1px solid var(--border);
}

table.events td {
  padding: 0.6rem 0.9rem;
  border-bottom: 1px solid var(--border-soft);
  color: var(--text-dim);
}

table.events tr:last-child td { border-bottom: none; }
table.events td { transition: background 0.12s var(--ease), color 0.12s var(--ease); }
table.events tr:hover td { background: var(--bg-hover); color: var(--text); }
table.events a { color: var(--blue); text-decoration: none; font-weight: 600; }
table.events a:hover { text-decoration: underline; }

.evt-tag {
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.15rem 0.5rem;
  border-radius: 6px;
  text-transform: uppercase;
}

.evt-QUEDA { background: var(--danger-dim); color: var(--danger); }
.evt-VOLTOU { background: var(--blue-dim); color: var(--blue); }
.evt-TROCA_LINK { background: var(--orange-dim); color: var(--orange); }
.evt-NOVO_DISPOSITIVO { background: var(--yellow-dim); color: var(--yellow); }

/* ---------- Forms ---------- */

.settings-form, .filter-bar {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  max-width: 460px;
}

.settings-form label {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  font-size: 0.85rem;
  color: var(--text-dim);
}

.settings-form label.checkbox {
  flex-direction: row;
  align-items: center;
  gap: 0.5rem;
}

.settings-form input[type="text"],
.settings-form input[type="password"],
.settings-form input[type="number"] {
  padding: 0.55rem 0.7rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.88rem;
  background: var(--bg-elevated);
  color: var(--text);
}

.settings-form input:focus {
  outline: none;
  border-color: var(--blue);
  box-shadow: 0 0 0 3px var(--blue-dim);
}

.settings-form button {
  align-self: flex-start;
  padding: 0.6rem 1.4rem;
  background: linear-gradient(135deg, var(--orange), #ff6a3d);
  color: #17100a;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 700;
  box-shadow: 0 6px 18px rgba(255, 138, 61, 0.25);
  transition: filter 0.15s var(--ease), transform 0.15s var(--ease);
}

.settings-form button:hover { filter: brightness(1.07); transform: translateY(-1px); }
.settings-form button:active { transform: translateY(0); }

.flash {
  padding: 0.65rem 1rem;
  border-radius: 8px;
  margin-bottom: 1.2rem;
  font-size: 0.85rem;
  border: 1px solid transparent;
}

.flash-success {
  background: var(--blue-dim);
  color: var(--blue);
  border-color: rgba(59, 157, 255, 0.3);
}

.flash-error {
  background: var(--danger-dim);
  color: var(--danger);
  border-color: rgba(255, 84, 112, 0.3);
}

/* ---------- Auth pages ---------- */

.auth-body {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
}

.auth-card {
  width: 100%;
  max-width: 340px;
  background: linear-gradient(160deg, var(--bg-card), var(--bg-elevated));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  text-align: center;
  box-shadow: var(--shadow-hover);
  animation: page-fade-in 0.4s var(--ease);
}

.auth-card h1 {
  font-size: 1.2rem;
  margin: 0 0 0.3rem;
}

.auth-card .subtitle {
  color: var(--text-faint);
  font-size: 0.85rem;
  margin-bottom: 1.2rem;
}

.auth-card .settings-form {
  max-width: none;
}

.auth-card button {
  align-self: stretch;
  text-align: center;
}

/* ---------- Incident status pills ---------- */

.status-pill {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
}

.status-ABERTO { background: var(--danger-dim); color: var(--danger); }
.status-RECONHECIDO { background: var(--yellow-dim); color: var(--yellow); }
.status-RESOLVIDO { background: var(--blue-dim); color: var(--blue); }

.wg-ONLINE { color: var(--blue); font-weight: 700; }
.wg-DEGRADADO { color: var(--orange); font-weight: 700; }
.wg-OFFLINE { color: var(--danger); font-weight: 700; }

/* ---------- Severidade ---------- */

.sev-pill {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  white-space: nowrap;
}

.sev-CRITICO { background: var(--danger-dim); color: var(--danger); }
.sev-ALTO { background: var(--orange-dim); color: var(--orange); }
.sev-MEDIO { background: var(--yellow-dim); color: var(--yellow); }
.sev-BAIXO { background: var(--gray-dim); color: var(--gray); }

/* ---------- Estado do equipamento (alem de online/offline) ---------- */

.equip-status-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  white-space: nowrap;
}

.equip-status-pill::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  flex-shrink: 0;
}

.equip-status-ONLINE { background: var(--blue-dim); color: var(--blue); }
.equip-status-OFFLINE { background: var(--danger-dim); color: var(--danger); }
.equip-status-DEGRADADO { background: var(--orange-dim); color: var(--orange); }
.equip-status-MANUTENCAO { background: var(--gray-dim); color: var(--gray); }
.equip-status-DESCONHECIDO { background: var(--gray-dim); color: var(--gray); }

/* ---------- Busca global ---------- */

.global-search {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1.4rem;
  max-width: 420px;
}
.global-search input {
  flex: 1;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.5rem 0.8rem;
  color: var(--text);
  font-size: 0.85rem;
  transition: border-color 0.15s var(--ease), box-shadow 0.15s var(--ease);
}
.global-search input:focus {
  outline: none;
  border-color: var(--blue);
  box-shadow: 0 0 0 3px var(--blue-dim);
}
.global-search button {
  background: var(--blue-dim);
  color: var(--blue);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.5rem 1rem;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: filter 0.15s var(--ease), transform 0.15s var(--ease);
}
.global-search button:hover { filter: brightness(1.15); transform: translateY(-1px); }

/* ---------- Topologia ---------- */

.topo { display: flex; flex-direction: column; align-items: center; margin-bottom: 2.4rem; }
.topo-row { display: flex; justify-content: center; gap: 1.2rem; flex-wrap: wrap; }
.topo-connector {
  width: 2px;
  height: 28px;
  background: linear-gradient(var(--border), var(--text-faint));
  position: relative;
}
.topo-connector::after {
  content: "";
  position: absolute;
  bottom: -1px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 0;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 5px solid var(--text-faint);
}
.topo-node {
  padding: 0.7rem 1.3rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  font-weight: 700;
  font-size: 0.82rem;
  text-align: center;
  min-width: 140px;
  box-shadow: var(--shadow);
  transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease);
}
.topo-node:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: var(--shadow-hover);
}