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

:root {
  --bg:           #0d1117;
  --bg-card:      #161b22;
  --bg-card2:     #1c2230;
  --border:       #30363d;
  --border-light: #21262d;
  --text:         #e6edf3;
  --text-muted:   #8b949e;
  --accent-blue:  #388bfd;
  --accent-green: #3fb950;
  --accent-red:   #f85149;
  --accent-yellow:#e3b341;
  --accent-orange:#f0883e;
  --s1-color:     #388bfd;
  --s2-color:     #3fb950;
  --radius:       10px;
  --radius-sm:    6px;
  --shadow:       0 2px 16px rgba(0,0,0,0.4);
}

html, body {
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  font-size: 14px;
  line-height: 1.5;
}

/* ===== HEADER ===== */
.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 28px;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-left { display: flex; align-items: center; gap: 14px; }

.header-icon {
  font-size: 28px;
  color: var(--accent-blue);
  line-height: 1;
}

.header-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.3px;
}

.header-sub {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 1px;
}

.header-reset-countdown {
  font-size: 11px;
  color: var(--accent-yellow);
  margin-top: 3px;
  font-variant-numeric: tabular-nums;
  font-family: 'Consolas', monospace;
}

.header-right { text-align: right; }

.header-clock {
  font-size: 26px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--accent-blue);
  letter-spacing: 1px;
}

.header-date {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 1px;
}

/* ===== MAIN ===== */
.main {
  padding: 24px 28px;
  max-width: 1600px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* ===== SENSORS ROW ===== */
.sensors-row {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 16px;
  align-items: start;
}

/* ===== SENSOR CARD ===== */
.sensor-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
  transition: border-color 0.3s;
}

.sensor-card.online  { border-color: var(--accent-green); }
.sensor-card.offline { border-color: var(--accent-red); }

.sensor-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 6px;
}

.sensor-title-group { display: flex; flex-direction: column; gap: 2px; }

.sensor-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1.5px;
  color: var(--text-muted);
}

.sensor-name {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
}

.sensor-status-group {
  display: flex;
  align-items: center;
  gap: 6px;
}

.status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--text-muted);
  flex-shrink: 0;
  transition: background 0.3s;
}

.status-dot.online  { background: var(--accent-green); box-shadow: 0 0 6px var(--accent-green); }
.status-dot.offline { background: var(--accent-red);   box-shadow: 0 0 6px var(--accent-red); }
.status-dot.waiting { background: var(--accent-yellow); }

.status-text {
  font-size: 11px;
  color: var(--text-muted);
}

.sensor-ip {
  font-size: 11px;
  color: var(--text-muted);
  margin-bottom: 16px;
  font-family: 'Consolas', monospace;
}

/* Count Display */
.count-display {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 20px;
  padding: 16px;
  background: var(--bg-card2);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-light);
}

#card-1 .count-number { color: var(--s1-color); }
#card-2 .count-number { color: var(--s2-color); }

.count-number {
  font-size: 56px;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  line-height: 1;
  letter-spacing: -2px;
}

.count-unit {
  font-size: 16px;
  color: var(--text-muted);
  font-weight: 400;
}

/* Sensor Stats */
.sensor-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-bottom: 16px;
}

.stat-box {
  background: var(--bg-card2);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  padding: 10px 8px;
  text-align: center;
}

.stat-value {
  font-size: 18px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--text);
}

.stat-label {
  font-size: 10px;
  color: var(--text-muted);
  margin-top: 2px;
  letter-spacing: 0.5px;
}

/* Sensor Footer */
.sensor-footer {
  display: flex;
  gap: 8px;
}

/* ===== CENTER PANEL ===== */
.center-panel {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 16px 12px;
  min-width: 160px;
  justify-content: flex-start;
}

.combined-box, .delta-box {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 20px;
  text-align: center;
  width: 100%;
  box-shadow: var(--shadow);
}

.combined-label, .delta-label {
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 1.5px;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.combined-value {
  font-size: 40px;
  font-weight: 800;
  color: var(--accent-orange);
  font-variant-numeric: tabular-nums;
  letter-spacing: -1px;
}

.combined-sub, .delta-sub {
  font-size: 10px;
  color: var(--text-muted);
  margin-top: 2px;
}

.delta-value {
  font-size: 30px;
  font-weight: 700;
  color: var(--accent-yellow);
  font-variant-numeric: tabular-nums;
}

.poll-indicator {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  color: var(--text-muted);
}

.poll-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--text-muted);
  flex-shrink: 0;
}

.poll-dot.active {
  background: var(--accent-blue);
  animation: pulse 1s ease-in-out;
}

@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(56,139,253,0.6); }
  70%  { box-shadow: 0 0 0 8px rgba(56,139,253,0); }
  100% { box-shadow: 0 0 0 0 rgba(56,139,253,0); }
}

/* ===== BUTTONS ===== */
.btn-reset, .btn-secondary, .btn-primary, .btn-settings, .btn-reset-all {
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid;
  transition: opacity 0.15s, background 0.15s;
}

.btn-reset {
  background: rgba(248,81,73,0.12);
  border-color: rgba(248,81,73,0.4);
  color: var(--accent-red);
  flex: 1;
}
.btn-reset:hover { background: rgba(248,81,73,0.22); }

.btn-secondary {
  background: var(--bg-card2);
  border-color: var(--border);
  color: var(--text-muted);
  flex: 1;
}
.btn-secondary:hover { background: var(--border); color: var(--text); }

.btn-secondary.small {
  padding: 4px 10px;
  font-size: 11px;
  flex: none;
}

.btn-primary {
  background: var(--accent-blue);
  border-color: var(--accent-blue);
  color: #fff;
}
.btn-primary:hover { opacity: 0.85; }

.btn-settings {
  background: var(--bg-card2);
  border-color: var(--border);
  color: var(--text-muted);
  width: 100%;
  font-size: 12px;
}
.btn-settings:hover { background: var(--border); color: var(--text); }

.btn-reset-all {
  background: rgba(248,81,73,0.1);
  border-color: rgba(248,81,73,0.35);
  color: var(--accent-red);
  width: 100%;
  font-size: 12px;
}
.btn-reset-all:hover { background: rgba(248,81,73,0.2); }

/* ===== CHART ===== */
.chart-section {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
}

.chart-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 16px;
}

.chart-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
}

.chart-sub {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 2px;
}

.chart-legend {
  display: flex;
  align-items: center;
  font-size: 12px;
  color: var(--text-muted);
}

.legend-dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  margin-right: 5px;
}
.legend-dot.s1 { background: var(--s1-color); }
.legend-dot.s2 { background: var(--s2-color); }

.chart-container {
  position: relative;
  height: 220px;
}

/* ===== LOG ===== */
.log-section {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 20px;
  box-shadow: var(--shadow);
}

.log-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}

.log-body {
  max-height: 160px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 3px;
  font-family: 'Consolas', monospace;
  font-size: 12px;
}

.log-body::-webkit-scrollbar { width: 4px; }
.log-body::-webkit-scrollbar-track { background: transparent; }
.log-body::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }

.log-entry {
  padding: 4px 8px;
  border-radius: 4px;
  color: var(--text-muted);
  border-left: 2px solid var(--border);
}

.log-entry.info  { border-left-color: var(--accent-blue);   color: var(--text-muted); }
.log-entry.ok    { border-left-color: var(--accent-green);  color: var(--accent-green); }
.log-entry.error { border-left-color: var(--accent-red);    color: var(--accent-red); }
.log-entry.warn  { border-left-color: var(--accent-yellow); color: var(--accent-yellow); }

/* ===== MODAL ===== */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.65);
  z-index: 200;
  align-items: center;
  justify-content: center;
}

.modal-overlay.open { display: flex; }

.modal {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  width: 480px;
  max-width: 95vw;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 8px 40px rgba(0,0,0,0.6);
  display: flex;
  flex-direction: column;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 22px 14px;
  border-bottom: 1px solid var(--border);
}

.modal-title {
  font-size: 16px;
  font-weight: 700;
}

.modal-close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 18px;
  cursor: pointer;
  padding: 2px 6px;
  border-radius: 4px;
}
.modal-close:hover { background: var(--border); color: var(--text); }

.modal-body {
  padding: 20px 22px;
  flex: 1;
  overflow-y: auto;
}

.settings-section-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 12px;
}

.settings-group { margin-bottom: 4px; }

.settings-label {
  display: block;
  font-size: 11px;
  color: var(--text-muted);
  margin-bottom: 4px;
  font-weight: 600;
  letter-spacing: 0.3px;
}

.settings-input {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  padding: 8px 10px;
  font-size: 13px;
  font-family: 'Consolas', monospace;
  margin-bottom: 10px;
  outline: none;
  transition: border-color 0.15s;
}
.settings-input:focus { border-color: var(--accent-blue); }
.settings-input::placeholder { color: var(--text-muted); }

.settings-divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 8px 0 18px;
}

.modal-footer {
  padding: 14px 22px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

/* ===== SHIFT TABLE ===== */
.shift-table-wrap {
  overflow-x: auto;
}

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

.shift-table th {
  text-align: left;
  padding: 8px 12px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.6px;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  background: var(--bg-card2);
}

.shift-table td {
  padding: 9px 12px;
  border-bottom: 1px solid var(--border-light);
  color: var(--text);
  vertical-align: middle;
}

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

.shift-table tr:hover td { background: var(--bg-card2); }

.td-num {
  font-variant-numeric: tabular-nums;
  font-family: 'Consolas', monospace;
  font-size: 13px;
}

.text-muted { color: var(--text-muted); }

.shift-badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  background: rgba(56,139,253,0.15);
  color: var(--accent-blue);
  border: 1px solid rgba(56,139,253,0.3);
}

.table-empty {
  text-align: center;
  color: var(--text-muted);
  padding: 20px !important;
  font-style: italic;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
  .sensors-row {
    grid-template-columns: 1fr;
  }

  .center-panel {
    flex-direction: row;
    flex-wrap: wrap;
    min-width: unset;
    padding: 8px 0;
  }

  .combined-box, .delta-box {
    flex: 1;
    min-width: 120px;
  }

  .btn-settings, .btn-reset-all, .poll-indicator {
    flex: 1;
    min-width: 120px;
  }
}

/* ===== DEPARTMENT TABS (shared across dashboards) ===== */
.dept-nav {
  display: flex;
  gap: 2px;
  padding: 0 28px;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
}

.dept-tab {
  padding: 12px 22px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  text-decoration: none;
  border-bottom: 3px solid transparent;
  transition: color 0.15s, border-color 0.15s, background 0.15s;
}

.dept-tab:hover {
  color: var(--text);
  background: rgba(56,139,253,0.07);
}

.dept-tab.is-current {
  color: var(--text);
  border-bottom-color: var(--accent-blue);
}

.dept-tab:focus-visible {
  outline: 2px solid var(--accent-blue);
  outline-offset: -2px;
}

/* ===== BANNERS ===== */
.setup-banner,
.save-banner {
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  border: 1px solid;
}

.setup-banner {
  background: rgba(227,179,65,0.1);
  border-color: rgba(227,179,65,0.35);
  color: var(--accent-yellow);
}

.setup-banner a { color: inherit; font-weight: 600; }

.save-banner {
  background: rgba(63,185,80,0.1);
  border-color: rgba(63,185,80,0.35);
  color: var(--accent-green);
  margin-bottom: 18px;
}

.chart-fallback {
  color: var(--text-muted);
  font-size: 13px;
  padding: 24px 0;
  text-align: center;
}

/* ===== SETTINGS PAGE ===== */
.back-link {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 13px;
  align-self: flex-start;
}

.back-link:hover { color: var(--text); }

.settings-page {
  max-width: 620px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
}

.settings-intro {
  color: var(--text-muted);
  font-size: 13px;
  margin-bottom: 18px;
}

.mono {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  color: var(--text);
}

.reveal-toggle {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 13px;
  color: var(--text-muted);
  cursor: pointer;
  margin-bottom: 20px;
}

.settings-page .settings-group {
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  padding: 16px 18px 18px;
  margin-bottom: 18px;
}

.settings-page .settings-section-title {
  padding: 0 6px;
  margin: 0;
}

.settings-hint {
  color: var(--text-muted);
  font-size: 12px;
  margin-top: 6px;
}

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

/* Buttons used as links need the layout a <button> gets for free. */
a.btn-secondary, a.btn-settings, a.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
}

.settings-actions .btn-primary,
.settings-actions .btn-secondary { padding: 10px 18px; font-size: 13px; }

@media (max-width: 600px) {
  .dept-nav { padding: 0 12px; }
  .dept-tab { padding: 11px 14px; font-size: 12px; }
}