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

:root {
  --bg:        #0d1117;
  --surface:   #161b22;
  --surface2:  #21262d;
  --border:    #30363d;
  --accent:    #388bfd;
  --accent-dim:#1f6feb;
  --danger:    #f85149;
  --success:   #3fb950;
  --warn:      #d29922;
  --text:      #c9d1d9;
  --text-dim:  #8b949e;
  --text-mute: #484f58;

  /* Service colours */
  --c-broadcast:  #ff7b54;
  --c-fixed:      #4fc3f7;
  --c-mobile:     #81c784;
  --c-maritime:   #4dd0e1;
  --c-aero:       #ce93d8;
  --c-satellite:  #ffd54f;
  --c-spectrum:   #90a4ae;

  --sidebar-w: 340px;
  --panel-gap: 12px;
}

html, body {
  height: 100%;
  font-family: 'Segoe UI', system-ui, sans-serif;
  font-size: 13px;
  background: var(--bg);
  color: var(--text);
  overflow: hidden;
}

/* ── Layout ──────────────────────────────────────────────────────────────── */
body {
  display: flex;
  height: 100vh;
}

#sidebar {
  width: var(--sidebar-w);
  min-width: var(--sidebar-w);
  height: 100vh;
  background: var(--surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  overflow-x: hidden;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}

#map-container {
  flex: 1;
  position: relative;
  height: 100vh;
}

#map {
  width: 100%;
  height: 100%;
  background: #0a0f14;
}

/* ── Header ──────────────────────────────────────────────────────────────── */
#app-header {
  padding: 14px 16px 10px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

#app-header h1 {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 2px;
  color: #e6edf3;
}

#app-header h1 span {
  color: var(--accent);
  margin-left: 2px;
}

#db-stats {
  font-size: 11px;
  color: var(--text-dim);
  margin-top: 3px;
  line-height: 1.5;
}

/* ── Panels ──────────────────────────────────────────────────────────────── */
.panel {
  padding: var(--panel-gap) 16px;
  border-bottom: 1px solid var(--border);
}

.panel h2 {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 6px;
}

/* ── Form elements ───────────────────────────────────────────────────────── */
.field-row {
  display: flex;
  gap: 6px;
  margin-bottom: 8px;
  align-items: center;
}

.coords-row label {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
  font-size: 11px;
  color: var(--text-dim);
}

.field-label {
  display: block;
  font-size: 11px;
  color: var(--text-dim);
  margin-bottom: 8px;
}

.field-label > *:not(:first-child) {
  margin-top: 4px;
}

input[type="text"],
input[type="number"],
select {
  width: 100%;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  padding: 6px 8px;
  font-size: 12px;
  outline: none;
  transition: border-color 0.15s;
}

input[type="text"]:focus,
input[type="number"]:focus,
select:focus {
  border-color: var(--accent);
}

select option { background: var(--surface2); }

.coords-row input[type="number"] { padding: 5px 6px; }

button {
  cursor: pointer;
  border: none;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 500;
  transition: background 0.15s, opacity 0.15s;
}

.primary-btn {
  width: 100%;
  padding: 8px;
  background: var(--accent);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.3px;
  margin-top: 4px;
}

.primary-btn:hover  { background: var(--accent-dim); }
.primary-btn:active { opacity: 0.8; }

#addr-btn, #go-btn {
  background: var(--surface2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 6px 10px;
  flex-shrink: 0;
}

#addr-btn:hover, #go-btn:hover { background: var(--border); }

.link-btn {
  background: none;
  color: var(--text-dim);
  padding: 0 4px;
  font-size: 11px;
  margin-left: auto;
}

.hint {
  font-size: 11px;
  color: var(--text-mute);
  margin-bottom: 8px;
}

.hint strong { color: var(--text-dim); }

/* Slider */
.slider-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 4px;
}

input[type="range"] {
  flex: 1;
  accent-color: var(--accent);
  cursor: pointer;
}

#radius-val {
  font-size: 12px;
  font-weight: 600;
  color: var(--accent);
  min-width: 54px;
  text-align: right;
}

/* Service checkboxes */
#service-checks {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px 8px;
  margin-top: 4px;
}

.check-label {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 12px;
  color: var(--text);
  cursor: pointer;
}

.check-label input[type="checkbox"] { accent-color: var(--accent); cursor: pointer; }

/* Filter collapse */
#filter-body { overflow: hidden; transition: max-height 0.2s ease; }
#filter-body.collapsed { max-height: 0 !important; }

/* ── Results list ────────────────────────────────────────────────────────── */
#results-panel {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
  overflow: hidden;
  padding-bottom: 0;
}

#results-panel h2 { flex-shrink: 0; }

#result-count {
  font-size: 11px;
  font-weight: 500;
  color: var(--accent);
  margin-left: 4px;
}

#sort-select {
  margin-left: auto;
  width: auto;
  padding: 2px 6px;
  font-size: 10px;
  border-radius: 4px;
}

#results-list {
  flex: 1;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}

.result-item {
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  transition: background 0.1s;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 2px 8px;
  align-items: start;
}

.result-item:hover { background: var(--surface2); }
.result-item.active { background: #1c2a3a; border-left: 3px solid var(--accent); }

.result-callsign {
  font-weight: 700;
  font-size: 13px;
  color: #e6edf3;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.result-dist {
  font-size: 12px;
  font-weight: 600;
  color: var(--accent);
  text-align: right;
  white-space: nowrap;
}

.result-sub {
  font-size: 11px;
  color: var(--text-dim);
  grid-column: 1 / -1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.result-freq {
  font-size: 12px;
  font-weight: 600;
  color: var(--warn);
}

.result-erp {
  font-size: 11px;
  color: var(--text-dim);
  text-align: right;
}

.svc-pill {
  display: inline-block;
  font-size: 10px;
  font-weight: 600;
  padding: 1px 5px;
  border-radius: 3px;
  margin-right: 4px;
  vertical-align: middle;
  letter-spacing: 0.3px;
}

/* ── Map overlay controls ────────────────────────────────────────────────── */
#map-controls {
  position: absolute;
  top: 12px;
  right: 12px;
  z-index: 1000;
  display: flex;
  align-items: center;
  gap: 8px;
}

#clear-btn {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 6px 12px;
  font-size: 12px;
}

#clear-btn:hover { background: var(--danger); color: #fff; border-color: var(--danger); }

#beam-toggle-wrap {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 5px 10px;
  font-size: 12px;
  color: var(--text-dim);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  user-select: none;
}

/* ── Detail panel ────────────────────────────────────────────────────────── */
#detail-panel {
  position: absolute;
  bottom: 0;
  right: 0;
  width: 420px;
  max-height: 70vh;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px 8px 0 0;
  overflow-y: auto;
  z-index: 1001;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
  transition: transform 0.2s ease;
}

#detail-panel.hidden { transform: translateY(100%); pointer-events: none; }

#detail-close {
  position: sticky;
  top: 0;
  float: right;
  background: var(--surface2);
  border: none;
  color: var(--text-dim);
  font-size: 18px;
  padding: 4px 10px;
  border-radius: 0 8px 0 6px;
  z-index: 1;
}

#detail-close:hover { color: var(--danger); }

#detail-content { padding: 14px 16px 20px; }

.detail-callsign {
  font-size: 22px;
  font-weight: 700;
  color: #e6edf3;
  margin-bottom: 2px;
}

.detail-location {
  font-size: 12px;
  color: var(--text-dim);
  margin-bottom: 12px;
}

.detail-section {
  margin-top: 12px;
}

.detail-section-title {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  color: var(--text-mute);
  border-bottom: 1px solid var(--border);
  padding-bottom: 4px;
  margin-bottom: 6px;
}

.detail-grid {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 4px 8px;
}

.detail-key {
  font-size: 11px;
  color: var(--text-dim);
  align-self: start;
  padding-top: 1px;
}

.detail-val {
  font-size: 12px;
  color: var(--text);
  word-break: break-word;
}

.detail-val.highlight {
  color: var(--warn);
  font-weight: 700;
  font-size: 14px;
}

.detail-val.ok   { color: var(--success); }
.detail-val.warn { color: var(--warn); }
.detail-val.bad  { color: var(--danger); }

/* ── Leaflet overrides ───────────────────────────────────────────────────── */
.leaflet-container { background: #0d1117; }

.leaflet-tile-pane { filter: brightness(0.75) saturate(0.5); }

.leaflet-popup-content-wrapper {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.6);
}

.leaflet-popup-tip { background: var(--surface); }

.leaflet-popup-content { margin: 10px 14px; font-size: 12px; }

/* Cluster colours */
.marker-cluster-small  div,
.marker-cluster-medium div,
.marker-cluster-large  div {
  background: rgba(56, 139, 253, 0.8) !important;
  color: #fff !important;
  font-weight: 700;
}

.marker-cluster-small,
.marker-cluster-medium,
.marker-cluster-large {
  background: rgba(56, 139, 253, 0.25) !important;
}

/* ── Cell tower markers ──────────────────────────────────────────────────── */
.cell-marker {
  width: 10px;
  height: 10px;
  border-radius: 2px;
  border: 1.5px solid;
  opacity: 0.9;
}

.cell-cluster {
  width: 32px;
  height: 32px;
  border-radius: 4px;
  background: rgba(120, 120, 120, 0.8);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255,255,255,0.3);
}

/* ── Loading overlay ─────────────────────────────────────────────────────── */
#loading {
  position: fixed;
  inset: 0;
  background: rgba(13,17,23,0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  font-size: 15px;
  color: var(--text-dim);
  letter-spacing: 1px;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.2s;
}

#loading.visible { opacity: 1; pointer-events: all; }
#loading span { animation: pulse 1.2s ease-in-out infinite; }

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

/* ── TSCM Mode ───────────────────────────────────────────────────────────── */
.tscm-section {
  padding-top: 8px;
  border-top: 1px solid var(--border);
  margin-top: 4px;
}

.tscm-label {
  font-weight: 700;
  color: var(--danger);
  letter-spacing: 0.4px;
}

#tscm-options {
  display: none;
  padding-top: 4px;
}

#tscm-options.tscm-active { display: block; }

#signal-filter-val {
  font-size: 12px;
  font-weight: 600;
  color: var(--warn);
  min-width: 72px;
  text-align: right;
}

/* Header tint when TSCM is active */
#app-header.tscm-active { border-bottom-color: var(--danger); }
#app-header.tscm-active h1 span { color: var(--danger); }

/* Results banner */
.tscm-banner {
  padding: 6px 12px;
  background: rgba(248, 81, 73, 0.08);
  border-bottom: 1px solid rgba(248, 81, 73, 0.2);
  font-size: 11px;
  color: var(--text-dim);
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.tscm-badge {
  background: var(--danger);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.8px;
  padding: 1px 5px;
  border-radius: 3px;
  flex-shrink: 0;
}

.tscm-legend {
  margin-left: auto;
  display: flex;
  gap: 6px;
  font-size: 10px;
}

/* Signal strength in result rows */
.result-signal {
  font-size: 11px;
  font-weight: 600;
  text-align: right;
  white-space: nowrap;
}

.result-erp-source {
  font-size: 10px;
  color: var(--text-mute);
}