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

:root {
  --bg:          #0f1117;
  --bg-card:     #1a1d27;
  --bg-card2:    #22263a;
  --bg-input:    #2a2f44;
  --border:      #2e3348;
  --border-light:#3d4460;
  --text:        #e2e6f0;
  --text-muted:  #8892b0;
  --text-dim:    #4a5278;
  --accent:      #4f8ef7;
  --accent-dark: #3a6fd8;
  --green:       #36d399;
  --yellow:      #fbbd23;
  --red:         #f87272;
  --orange:      #f97316;
  --purple:      #a855f7;
  --radius:      10px;
  --radius-sm:   6px;
  --shadow:      0 4px 24px rgba(0,0,0,0.4);
  --font:        'Segoe UI', system-ui, sans-serif;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.5;
  min-height: 100vh;
}

/* ── Header ──────────────────────────────────────────────────────────────── */
.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  height: 72px;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  overflow: hidden;
}

/* Hero image fills the header as a background */
.app-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('watchtower.jpg') center 30% / cover no-repeat;
  opacity: 0.18;
  pointer-events: none;
}

/* Gradient vignette so edges fade to card colour */
.app-header::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to right,
    var(--bg-card) 0%,
    transparent 30%,
    transparent 70%,
    var(--bg-card) 100%
  );
  pointer-events: none;
}

.header-left,
.header-right {
  position: relative;
  z-index: 1;
}

/* Logo */
.logo-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: url('watchtower.jpg') center 25% / cover no-repeat;
  border: 1px solid var(--border-light);
  box-shadow: 0 2px 8px rgba(0,0,0,0.4);
  flex-shrink: 0;
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.logo-name {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--text);
  text-shadow: 0 1px 6px rgba(0,0,0,0.6);
}

.logo-sub {
  font-size: 11px;
  color: var(--text-muted);
  font-weight: 400;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.header-right {
  display: flex;
  gap: 8px;
  align-items: center;
}

/* ── Buttons ─────────────────────────────────────────────────────────────── */
.btn {
  padding: 7px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  transition: all 0.15s;
  white-space: nowrap;
}

.btn-primary   { background: var(--accent); color: #fff; border-color: var(--accent-dark); }
.btn-primary:hover { background: var(--accent-dark); }
.btn-secondary { background: var(--bg-card2); color: var(--text); border-color: var(--border-light); }
.btn-secondary:hover { background: var(--bg-input); }
.btn-ghost     { background: transparent; color: var(--text-muted); border-color: var(--border); }
.btn-ghost:hover { color: var(--text); background: var(--bg-card2); }
.btn-danger    { background: transparent; color: var(--red); border-color: var(--red); }
.btn-danger:hover { background: var(--red); color: #fff; }
.btn-sm        { padding: 4px 10px; font-size: 12px; }
.btn:disabled  { opacity: 0.5; cursor: not-allowed; }

/* ── Classification banner ────────────────────────────────────────────────── */
.classification-banner {
  text-align: center;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  padding: 4px 12px;
  position: sticky;
  top: 72px;
  z-index: 99;
  width: 100%;
  display: block;
}

/* ── Main layout ─────────────────────────────────────────────────────────── */
.app-main {
  padding: 24px;
  max-width: 1600px;
  margin: 0 auto;
}

/* ── Alert banner ─────────────────────────────────────────────────────────── */
.global-alert {
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  margin-bottom: 16px;
  font-size: 13px;
}
.global-alert.error   { background: rgba(248,114,114,0.15); border: 1px solid var(--red);    color: var(--red); }
.global-alert.success { background: rgba(54,211,153,0.12);  border: 1px solid var(--green);  color: var(--green); }
.global-alert.info    { background: rgba(79,142,247,0.12);  border: 1px solid var(--accent); color: var(--accent); }
.hidden { display: none !important; }

/* ── Dashboard toolbar ───────────────────────────────────────────────────── */
.dash-toolbar {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
  flex-wrap: wrap;
  position: sticky;
  top: 72px;          /* sits just below the 72px header */
  z-index: 90;
  background: var(--bg);
  padding: 12px 0;
  margin-top: -12px;
  border-bottom: 1px solid var(--border);
}

.dash-search-wrap {
  position: relative;
  flex: 1;
  min-width: 220px;
  max-width: 400px;
}

.dash-search {
  width: 100%;
  padding: 8px 32px 8px 34px;
  background: var(--bg-card) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%238892b0' stroke-width='2'%3E%3Ccircle cx='11' cy='11' r='8'/%3E%3Cpath d='m21 21-4.35-4.35'/%3E%3C/svg%3E") no-repeat 10px center;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 13px;
  transition: border-color 0.15s;
}

.dash-search-clear {
  position: absolute;
  right: 6px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 14px;
  cursor: pointer;
  padding: 4px 6px;
  border-radius: 4px;
  line-height: 1;
  transition: color 0.15s, background 0.15s;
}
.dash-search-clear:hover {
  color: var(--text);
  background: var(--bg-input);
}
.dash-search:focus { outline: none; border-color: var(--accent); }
.dash-search::placeholder { color: var(--text-dim); }

.dash-filter-pills {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.pill {
  padding: 5px 12px;
  border-radius: 20px;
  border: 1px solid var(--border-light);
  background: transparent;
  color: var(--text-muted);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s;
  white-space: nowrap;
}
.pill:hover { color: var(--text); border-color: var(--text-muted); }
.pill.active           { background: var(--bg-card2); color: var(--text); border-color: var(--border-light); }
.pill.active[data-filter="critical"] { background: rgba(248,114,114,0.15); color: var(--red);    border-color: var(--red); }
.pill.active[data-filter="warning"]  { background: rgba(251,189,35,0.12);  color: var(--yellow); border-color: var(--yellow); }
.pill.active[data-filter="ok"]       { background: rgba(54,211,153,0.12);  color: var(--green);  border-color: var(--green); }
.pill.active[data-filter="polling"]  { background: rgba(79,142,247,0.12);  color: var(--accent); border-color: var(--accent); }

.dash-count {
  font-size: 12px;
  color: var(--text-muted);
  white-space: nowrap;
  margin-left: auto;
}

/* ── Dashboard grid ──────────────────────────────────────────────────────── */
.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 16px;
}

.loading-state {
  color: var(--text-muted);
  grid-column: 1/-1;
  padding: 48px;
  text-align: center;
}

/* ── PDU Card ────────────────────────────────────────────────────────────── */
.pdu-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.2s;
}
.pdu-card:hover { border-color: var(--border-light); }
.pdu-card.has-critical { border-color: var(--red); }
.pdu-card.has-warning  { border-color: var(--yellow); }

.card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  padding: 14px 16px 10px;
  border-bottom: 1px solid var(--border);
}

.card-title { font-size: 15px; font-weight: 600; }
.card-subtitle { font-size: 11px; color: var(--text-muted); margin-top: 2px; }
.card-subtitle .pdu-host-link {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px dotted var(--accent);
  transition: color 0.15s;
}
.card-subtitle .pdu-host-link:hover {
  color: var(--text);
  border-bottom-color: var(--text);
}

.card-badges { display: flex; gap: 6px; flex-shrink: 0; }
.badge {
  font-size: 11px;
  font-weight: 600;
  padding: 2px 7px;
  border-radius: 20px;
  white-space: nowrap;
}
.badge-critical { background: rgba(248,114,114,0.2); color: var(--red); }
.badge-warning  { background: rgba(251,189,35,0.15); color: var(--yellow); }
.badge-ok       { background: rgba(54,211,153,0.15); color: var(--green); }
.badge-offline  { background: rgba(79,82,99,0.3);    color: var(--text-muted); }

.card-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
}

.metric-cell {
  padding: 12px 14px;
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.metric-cell:nth-child(3n) { border-right: none; }

.metric-value {
  font-size: 20px;
  font-weight: 700;
  line-height: 1.2;
  color: var(--text);
}
.metric-value.dim { color: var(--text-muted); font-size: 16px; }
.metric-label { font-size: 11px; color: var(--text-muted); margin-top: 2px; }
.metric-sub   { font-size: 11px; color: var(--text-dim); }

.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  gap: 8px;
}

.poll-status {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text-muted);
}
.poll-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--text-dim);
}
.poll-dot.poll-green { background: var(--green); box-shadow: 0 0 6px var(--green); animation: pulse 2s infinite; }
.poll-dot.poll-yellow { background: var(--yellow); box-shadow: 0 0 6px var(--yellow); animation: pulse 1.5s infinite; }
.poll-dot.poll-red { background: var(--red); box-shadow: 0 0 6px var(--red); }
.poll-dot.poll-waiting { background: var(--accent); animation: pulse 2s infinite; }

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.4; }
}

.card-actions { display: flex; gap: 6px; }

/* Alert preview strip */
.alert-strip {
  padding: 8px 14px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 4px;
  max-height: 100px;
  overflow-y: auto;
}
.alert-row {
  font-size: 12px;
  display: flex;
  gap: 6px;
  align-items: flex-start;
}
.alert-icon { flex-shrink: 0; }
.alert-row.critical .alert-icon { color: var(--red); }
.alert-row.warning  .alert-icon { color: var(--yellow); }
.alert-row.info     .alert-icon { color: var(--accent); }

/* ── Modals ──────────────────────────────────────────────────────────────── */
.modal-backdrop {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(2px);
  z-index: 200;
}

.modal {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 300;
  padding: 16px;
}

.modal-box {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 24px;
  width: 100%;
  max-width: 520px;
  max-height: 90vh;
  overflow-y: auto;
}

.modal-wide .modal-box { max-width: 960px; }
.modal-box-sm { max-width: 420px; }

.modal-box h2 { font-size: 18px; font-weight: 600; margin-bottom: 8px; }
.modal-desc   { color: var(--text-muted); font-size: 13px; margin-bottom: 16px; }

.modal-detail-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

/* ── Forms ───────────────────────────────────────────────────────────────── */
.form-group { display: flex; flex-direction: column; gap: 5px; margin-bottom: 14px; }
.form-group label { font-size: 12px; color: var(--text-muted); font-weight: 500; }
.form-group-sm { max-width: 180px; }
.form-row { display: flex; gap: 12px; flex-wrap: wrap; }
.form-row .form-group { flex: 1; min-width: 120px; }
.form-check-group { justify-content: flex-end; padding-bottom: 0; }
.form-actions { display: flex; gap: 8px; justify-content: flex-end; margin-top: 20px; }

input[type="text"],
input[type="password"],
input[type="number"],
input[type="datetime-local"],
input[type="file"],
select {
  background: var(--bg-input);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  color: var(--text);
  padding: 8px 10px;
  font-size: 13px;
  width: 100%;
  transition: border-color 0.15s;
}
input:focus, select:focus { outline: none; border-color: var(--accent); }
input::placeholder { color: var(--text-dim); }

.check-label {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-size: 13px;
  color: var(--text);
  padding-top: 20px;
}
input[type="checkbox"] { width: 16px; height: 16px; accent-color: var(--accent); cursor: pointer; }

.checkbox-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 160px;
  overflow-y: auto;
  background: var(--bg-input);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
}
.checkbox-list label {
  display: flex; align-items: center; gap: 8px;
  cursor: pointer; font-size: 13px; color: var(--text);
}

/* ── Tabs ────────────────────────────────────────────────────────────────── */
.detail-tabs {
  display: flex;
  gap: 2px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 16px;
}

.tab-btn {
  background: none;
  border: none;
  padding: 8px 14px;
  cursor: pointer;
  color: var(--text-muted);
  font-size: 13px;
  font-weight: 500;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: all 0.15s;
}
.tab-btn:hover  { color: var(--text); }
.tab-btn.active { color: var(--accent); border-bottom-color: var(--accent); }

.tab-content { animation: fadeIn 0.15s ease; }
@keyframes fadeIn { from { opacity:0; transform:translateY(4px); } to { opacity:1; transform:translateY(0); } }

/* ── Data table ──────────────────────────────────────────────────────────── */
.table-toolbar {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.search-input {
  flex: 1;
  min-width: 180px;
  max-width: 320px;
  padding: 7px 10px;
  background: var(--bg-input);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 13px;
}

.table-wrap { overflow-x: auto; border-radius: var(--radius-sm); }

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.data-table th {
  background: var(--bg-card2);
  padding: 10px 12px;
  text-align: left;
  font-size: 11px;
  font-weight: 600;
  color: var(--text-muted);
  white-space: nowrap;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  user-select: none;
}
.data-table th:hover { color: var(--text); }
.data-table th.sorted-asc::after  { content: ' ↑'; color: var(--accent); }
.data-table th.sorted-desc::after { content: ' ↓'; color: var(--accent); }

.data-table td {
  padding: 9px 12px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}
.data-table tbody tr:hover { background: rgba(79,142,247,0.04); }
.data-table tbody tr:last-child td { border-bottom: none; }

.state-on  { color: var(--green); font-weight: 600; }
.state-off { color: var(--text-dim); }
.val-warn  { color: var(--yellow); font-weight: 600; }
.val-crit  { color: var(--red);    font-weight: 600; }
.val-ok    { color: var(--text); }
.val-dim   { color: var(--text-muted); }
.outlet-name-empty { color: var(--text-dim); font-style: italic; }

/* ── Inlet / phase display ───────────────────────────────────────────────── */
.inlet-section { margin-bottom: 20px; }
.inlet-section h3 { font-size: 14px; font-weight: 600; color: var(--text-muted); margin-bottom: 12px; }

.phase-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 10px;
  margin-bottom: 16px;
}

.phase-card {
  background: var(--bg-card2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
}
.phase-card .phase-label { font-size: 11px; color: var(--text-muted); font-weight: 600; margin-bottom: 8px; }
.phase-metric { display: flex; justify-content: space-between; font-size: 13px; padding: 2px 0; }
.phase-metric .pm-val { font-weight: 600; }

/* ── Environment toolbar ─────────────────────────────────────────────────── */
.env-toolbar {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}

.unit-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  min-width: 20px;
}

/* Toggle switch */
.unit-toggle {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
  cursor: pointer;
}
.unit-toggle input { opacity: 0; width: 0; height: 0; }
.unit-slider {
  position: absolute;
  inset: 0;
  background: var(--bg-input);
  border: 1px solid var(--border-light);
  border-radius: 24px;
  transition: background 0.2s;
}
.unit-slider::before {
  content: '';
  position: absolute;
  width: 18px; height: 18px;
  left: 2px; top: 2px;
  background: var(--accent);
  border-radius: 50%;
  transition: transform 0.2s;
}
.unit-toggle input:checked + .unit-slider { background: var(--bg-card2); }
.unit-toggle input:checked + .unit-slider::before { transform: translateX(20px); }

/* ── Environment display ─────────────────────────────────────────────────── */
.env-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 12px;
}

.env-card {
  background: var(--bg-card2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  text-align: center;
}
.env-value { font-size: 28px; font-weight: 700; }
.env-label { font-size: 12px; color: var(--text-muted); margin-top: 4px; }
.env-name  { font-size: 11px; color: var(--text-dim); margin-top: 2px; }
.env-card.temp-ok   .env-value { color: var(--green); }
.env-card.temp-warn .env-value { color: var(--yellow); }
.env-card.temp-crit .env-value { color: var(--red); }
.env-card.humid-ok   .env-value { color: var(--accent); }
.env-card.humid-warn .env-value { color: var(--yellow); }
.env-card.humid-crit .env-value { color: var(--red); }

/* ── Trend chart ─────────────────────────────────────────────────────────── */
.trend-controls {
  display: flex;
  gap: 12px;
  align-items: flex-end;
  flex-wrap: wrap;
  margin-bottom: 16px;
}
.chart-wrap {
  background: var(--bg-card2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 16px;
  position: relative;
  min-height: 300px;
}

/* ── Export capability card ──────────────────────────────────────────────── */
.export-capability-card {
  background: var(--bg-card2);
  border: 1px solid var(--border);
  border-left: 3px solid var(--text-dim);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  margin-bottom: 16px;
}

.export-cap-header {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  margin-bottom: 10px;
}

.export-cap-icon { font-size: 18px; flex-shrink: 0; }

.export-cap-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
}

.export-cap-detail {
  font-size: 12px;
  color: var(--text-dim);
  margin-top: 3px;
}

.family-tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.family-tag {
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 4px;
  background: var(--bg-input);
  color: var(--text-dim);
  border: 1px solid var(--border);
  font-family: monospace;
}

/* ── Alerts panel ────────────────────────────────────────────────────────── */
.alerts-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.alert-card {
  background: var(--bg-card2);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  display: flex;
  gap: 12px;
  align-items: flex-start;
}
.alert-card.critical { border-left: 3px solid var(--red); }
.alert-card.warning  { border-left: 3px solid var(--yellow); }
.alert-card.info     { border-left: 3px solid var(--accent); }

.alert-severity-icon { font-size: 16px; flex-shrink: 0; margin-top: 1px; }
.alert-card.critical .alert-severity-icon { color: var(--red); }
.alert-card.warning  .alert-severity-icon { color: var(--yellow); }
.alert-card.info     .alert-severity-icon { color: var(--accent); }

.alert-body .alert-title  { font-size: 13px; font-weight: 600; }
.alert-body .alert-detail { font-size: 12px; color: var(--text-muted); margin-top: 2px; }
.alert-body .alert-meta   { font-size: 11px; color: var(--text-dim); margin-top: 4px; }

.no-alerts {
  text-align: center;
  padding: 32px;
  color: var(--text-muted);
  font-size: 14px;
}
.no-alerts .no-alerts-icon { font-size: 32px; display: block; margin-bottom: 8px; }

/* ── Scrollbars ──────────────────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-light); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-dim); }

/* ── Responsive ──────────────────────────────────────────────────────────── */
@media (max-width: 600px) {
  .app-header { padding: 0 12px; }
  .header-right .btn-ghost:not(#btn-refresh) { display: none; }
  .app-main { padding: 12px; }
  .dashboard-grid { grid-template-columns: 1fr; }
  .card-metrics { grid-template-columns: repeat(2,1fr); }
}