/* ============================================================
   HVAC Equipment Health Dashboard — Dark Theme
   Consistent with portfolio: similar color language to RAG project
   ============================================================ */

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

:root {
  --bg-page:      #0f1117;
  --bg-card:      #1a1d2e;
  --bg-card-alt:  #1e2135;
  --border:       #2a2d3e;
  --accent:       #3ecf8e;     /* healthy green */
  --accent-warn:  #f5a623;     /* warning amber */
  --accent-crit:  #e53e3e;     /* critical red */
  --accent-mon:   #63b3ed;     /* monitor blue */
  --text-primary: #e2e8f0;
  --text-muted:   #94a3b8;
  --text-dim:     #64748b;
  --font-mono:    "JetBrains Mono", "Fira Code", "Consolas", monospace;
  --radius:       8px;
  --shadow:       0 4px 16px rgba(0,0,0,0.4);
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 14px;
  line-height: 1.6;
  background: var(--bg-page);
  color: var(--text-primary);
  min-height: 100vh;
}

/* ── Header ── */
.header {
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  padding: 14px 24px;
}
.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.header-title { display: flex; align-items: center; gap: 14px; }
.header-icon  { font-size: 28px; }
.header-title h1 { font-size: 18px; font-weight: 700; }
.header-sub { font-size: 12px; color: var(--text-muted); margin-top: 1px; }

.header-status {
  display: flex; align-items: center; gap: 8px;
  font-size: 12px; color: var(--text-muted);
}
.status-dot {
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--text-dim);
  transition: background 0.3s;
}
.status-dot.ok      { background: var(--accent); box-shadow: 0 0 6px var(--accent); }
.status-dot.error   { background: var(--accent-crit); }
.status-dot.degraded { background: var(--accent-warn); }

/* ── Fleet Banner ── */
.fleet-banner {
  max-width: 1200px; margin: 20px auto 0; padding: 0 24px;
  display: flex; gap: 12px; flex-wrap: wrap;
}
.fleet-card {
  flex: 1; min-width: 100px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
  display: flex; flex-direction: column; align-items: center; gap: 4px;
  transition: border-color 0.2s;
}
.fleet-card.critical { border-color: rgba(229,62,62,0.4); }
.fleet-card.warning  { border-color: rgba(245,166,35,0.4); }
.fleet-card.monitor  { border-color: rgba(99,179,237,0.4); }
.fleet-card.healthy  { border-color: rgba(62,207,142,0.3); }
.fleet-count {
  font-size: 28px; font-weight: 700; font-family: var(--font-mono);
}
.fleet-card.critical .fleet-count { color: var(--accent-crit); }
.fleet-card.warning  .fleet-count { color: var(--accent-warn); }
.fleet-card.monitor  .fleet-count { color: var(--accent-mon); }
.fleet-card.healthy  .fleet-count { color: var(--accent); }
.fleet-card.total    .fleet-count { color: var(--text-primary); }
.fleet-label { font-size: 11px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.8px; }

/* ── Main Layout ── */
.main-layout {
  max-width: 1200px; margin: 20px auto 40px;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 280px 1fr 280px;
  gap: 16px;
}
@media (max-width: 900px) {
  .main-layout { grid-template-columns: 1fr; }
}

/* ── Card ── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
}
.panel-title {
  font-size: 13px; font-weight: 600; text-transform: uppercase;
  letter-spacing: 0.8px; color: var(--text-muted);
  margin-bottom: 16px;
  display: flex; align-items: center; gap: 8px;
}
.panel-note { font-size: 11px; font-weight: 400; color: var(--text-dim); }

/* ── Form ── */
.form-group { display: flex; flex-direction: column; gap: 4px; margin-bottom: 12px; }
.form-group label { font-size: 11px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.5px; }
.form-group select,
.form-group input {
  background: var(--bg-card-alt);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-primary);
  padding: 8px 10px;
  font-size: 13px;
  outline: none;
  transition: border-color 0.2s;
}
.form-group select:focus,
.form-group input:focus { border-color: var(--accent); }

.manual-input { margin-bottom: 12px; }
.manual-input summary {
  cursor: pointer; font-size: 12px; color: var(--text-muted);
  padding: 6px 0; user-select: none;
}
.manual-input summary:hover { color: var(--accent); }
.sensor-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 8px;
  margin-top: 10px;
}

/* ── Buttons ── */
.btn-primary {
  width: 100%; padding: 10px;
  background: var(--accent); color: #0a1a12;
  border: none; border-radius: 6px;
  font-size: 13px; font-weight: 600; cursor: pointer;
  transition: opacity 0.2s, transform 0.1s;
}
.btn-primary:hover { opacity: 0.88; }
.btn-primary:active { transform: scale(0.98); }
.btn-primary:disabled { opacity: 0.4; cursor: not-allowed; }

.btn-ghost {
  background: none; border: none; color: var(--text-muted);
  font-size: 16px; cursor: pointer; padding: 2px 6px;
  border-radius: 4px; transition: color 0.2s;
}
.btn-ghost:hover { color: var(--accent); }

.error-msg {
  margin-top: 8px; padding: 8px 10px;
  background: rgba(229,62,62,0.1); border: 1px solid rgba(229,62,62,0.3);
  border-radius: 6px; font-size: 12px; color: #fc8181;
}
.hidden { display: none !important; }

/* ── Gauge ── */
.gauge-container {
  display: flex; flex-direction: column; align-items: center;
  margin-top: 20px; gap: 8px;
}
.gauge-svg { width: 200px; height: 120px; }

.tier-badge {
  padding: 4px 14px;
  border-radius: 20px;
  font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: 1px;
}
.tier-badge.healthy  { background: rgba(62,207,142,0.15); color: var(--accent); border: 1px solid rgba(62,207,142,0.3); }
.tier-badge.monitor  { background: rgba(99,179,237,0.15); color: var(--accent-mon); border: 1px solid rgba(99,179,237,0.3); }
.tier-badge.warning  { background: rgba(245,166,35,0.15); color: var(--accent-warn); border: 1px solid rgba(245,166,35,0.3); }
.tier-badge.critical { background: rgba(229,62,62,0.15); color: var(--accent-crit); border: 1px solid rgba(229,62,62,0.3); }

.anomaly-flag {
  font-size: 11px; font-weight: 700; color: var(--accent-crit);
  letter-spacing: 1px; text-transform: uppercase; animation: pulse 1.4s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.45; }
}

/* ── SHAP Panel ── */
.shap-intro { font-size: 12px; color: var(--text-muted); margin-bottom: 14px; }
.shap-placeholder { color: var(--text-dim); font-size: 12px; padding: 20px 0; text-align: center; }

.shap-item {
  margin-bottom: 12px;
}
.shap-feature {
  display: flex; justify-content: space-between;
  font-size: 12px; margin-bottom: 4px;
}
.shap-feature-name { color: var(--text-primary); font-family: var(--font-mono); }
.shap-direction { font-size: 10px; }
.shap-direction.worsens  { color: var(--accent-crit); }
.shap-direction.improves { color: var(--accent); }
.shap-bar-bg {
  height: 6px; background: var(--border);
  border-radius: 3px; overflow: hidden;
}
.shap-bar-fill {
  height: 100%; border-radius: 3px;
  transition: width 0.5s ease;
}
.shap-bar-fill.worsens  { background: var(--accent-crit); }
.shap-bar-fill.improves { background: var(--accent); }
.shap-value {
  font-size: 10px; color: var(--text-dim);
  font-family: var(--font-mono); margin-top: 2px;
}

.score-stats { margin-top: 20px; border-top: 1px solid var(--border); padding-top: 14px; }
.stat-row {
  display: flex; justify-content: space-between;
  padding: 4px 0; font-size: 12px;
}
.stat-label { color: var(--text-muted); }
.stat-value { color: var(--text-primary); font-family: var(--font-mono); }

/* ── Alert Table ── */
.alert-intro { font-size: 12px; color: var(--text-muted); margin-bottom: 12px; }
.table-scroll { overflow-x: auto; }
.alert-table { width: 100%; border-collapse: collapse; font-size: 12px; }
.alert-table th {
  text-align: left; font-size: 10px; text-transform: uppercase;
  letter-spacing: 0.8px; color: var(--text-dim);
  padding: 6px 8px; border-bottom: 1px solid var(--border);
}
.alert-table td { padding: 7px 8px; border-bottom: 1px solid rgba(42,45,62,0.5); }
.alert-table tr:hover td { background: var(--bg-card-alt); cursor: pointer; }
.table-placeholder { color: var(--text-dim); text-align: center; padding: 20px 0; }

.tier-chip {
  display: inline-block; padding: 2px 8px;
  border-radius: 10px; font-size: 10px; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.5px;
}
.tier-chip.healthy  { background: rgba(62,207,142,0.12); color: var(--accent); }
.tier-chip.monitor  { background: rgba(99,179,237,0.12); color: var(--accent-mon); }
.tier-chip.warning  { background: rgba(245,166,35,0.12); color: var(--accent-warn); }
.tier-chip.critical { background: rgba(229,62,62,0.12); color: var(--accent-crit); }

.anomaly-dot { color: var(--accent-crit); font-size: 14px; }

/* ── Footer ── */
.footer {
  text-align: center; padding: 24px; font-size: 12px;
  color: var(--text-dim); border-top: 1px solid var(--border);
}
.footer a { color: var(--text-muted); text-decoration: none; }
.footer a:hover { color: var(--accent); }

/* ── Spinner ── */
.spinner {
  width: 18px; height: 18px; border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%; animation: spin 0.7s linear infinite;
  display: inline-block; vertical-align: middle; margin-right: 6px;
}
@keyframes spin { to { transform: rotate(360deg); } }