/* ── GOES Satellite Viewer — Dark Meteorological Theme ── */

:root {
  --bg-primary:    #0a0e1a;
  --bg-secondary:  #111827;
  --bg-panel:      #0d1424;
  --bg-card:       #131d2e;
  --border:        #1e3a5f;
  --border-bright: #2a5298;
  --accent-blue:   #3b82f6;
  --accent-cyan:   #06b6d4;
  --accent-green:  #10b981;
  --accent-yellow: #f59e0b;
  --accent-red:    #ef4444;
  --text-primary:  #e2e8f0;
  --text-secondary:#94a3b8;
  --text-dim:      #475569;
  --panel-width:   320px;
  --header-height: 56px;
}

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

html, body {
  width: 100%; height: 100%;
  overflow: hidden;
  font-family: 'Inter', 'JetBrains Mono', 'Consolas', monospace;
  background: var(--bg-primary);
  color: var(--text-primary);
}

/* ── Header ── */
#header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--header-height);
  background: rgba(10,14,26,0.95);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  z-index: 100;
  backdrop-filter: blur(10px);
}

#header .logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--accent-cyan);
}

#header .logo svg { width: 28px; height: 28px; }

#header .status-bar {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 11px;
  color: var(--text-secondary);
}

#header .status-indicator {
  display: flex;
  align-items: center;
  gap: 6px;
}

.status-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--accent-green);
  box-shadow: 0 0 6px var(--accent-green);
  animation: blink 2s infinite;
}

.status-dot.loading { background: var(--accent-yellow); box-shadow: 0 0 6px var(--accent-yellow); }
.status-dot.error   { background: var(--accent-red);    box-shadow: 0 0 6px var(--accent-red);    animation: none; }

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

#obs-time {
  font-size: 11px;
  color: var(--accent-cyan);
  font-family: 'JetBrains Mono', monospace;
}

/* ── Map container ── */
#map {
  position: fixed;
  top: var(--header-height);
  left: var(--panel-width);
  right: 0;
  bottom: 0;
}

/* ── Side Panel ── */
#panel {
  position: fixed;
  top: var(--header-height);
  left: 0;
  width: var(--panel-width);
  bottom: 0;
  background: var(--bg-panel);
  border-right: 1px solid var(--border);
  overflow-y: auto;
  z-index: 50;
  display: flex;
  flex-direction: column;
}

#panel::-webkit-scrollbar { width: 4px; }
#panel::-webkit-scrollbar-track { background: var(--bg-panel); }
#panel::-webkit-scrollbar-thumb { background: var(--border-bright); border-radius: 2px; }

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

.panel-section-title {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.panel-section-title::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

/* ── Satellite Toggle ── */
.sat-toggle {
  display: flex;
  gap: 6px;
}

.sat-btn {
  flex: 1;
  padding: 9px 8px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg-card);
  color: var(--text-secondary);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.5px;
  cursor: pointer;
  transition: all 0.2s;
  text-align: center;
}

.sat-btn:hover {
  border-color: var(--accent-blue);
  color: var(--text-primary);
}

.sat-btn.active {
  background: rgba(59,130,246,0.15);
  border-color: var(--accent-blue);
  color: var(--accent-blue);
  box-shadow: 0 0 12px rgba(59,130,246,0.2);
}

.sat-btn .sat-label { font-size: 10px; display: block; color: var(--text-dim); margin-top: 2px; }
.sat-btn.active .sat-label { color: var(--accent-cyan); }

/* ── Sector Buttons ── */
.sector-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
}

.sector-btn {
  padding: 8px 4px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg-card);
  color: var(--text-secondary);
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  text-align: center;
}

.sector-btn:hover { border-color: var(--accent-cyan); color: var(--text-primary); }

.sector-btn.active {
  background: rgba(6,182,212,0.15);
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  box-shadow: 0 0 10px rgba(6,182,212,0.2);
}

.sector-btn .sector-sub { font-size: 9px; color: var(--text-dim); display: block; margin-top: 2px; }
.sector-btn.active .sector-sub { color: var(--accent-cyan); opacity: 0.7; }

/* ── Band Selector ── */
.band-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 5px;
}

.band-btn {
  padding: 7px 4px;
  border: 1px solid var(--border);
  border-radius: 5px;
  background: var(--bg-card);
  color: var(--text-secondary);
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
  text-align: center;
  position: relative;
}

.band-btn:hover { border-color: var(--accent-blue); color: var(--text-primary); }

.band-btn.active {
  background: rgba(59,130,246,0.2);
  border-color: var(--accent-blue);
  color: var(--accent-blue);
}

.band-btn.visible  { border-color: rgba(255,220,100,0.3); }
.band-btn.nir      { border-color: rgba(100,200,100,0.3); }
.band-btn.ir       { border-color: rgba(255,100,100,0.3); }
.band-btn.wv       { border-color: rgba(100,150,255,0.3); }

.band-btn.visible.active  { background: rgba(255,220,100,0.15); border-color: #ffd700; color: #ffd700; }
.band-btn.nir.active      { background: rgba(100,200,100,0.15); border-color: #64c864; color: #64c864; }
.band-btn.ir.active       { background: rgba(255,100,100,0.15); border-color: #ff6464; color: #ff6464; }
.band-btn.wv.active       { background: rgba(100,150,255,0.15); border-color: #6496ff; color: #6496ff; }

/* ── Opacity Slider ── */
.slider-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
}

.slider-wrap label { font-size: 11px; color: var(--text-secondary); min-width: 55px; }
.slider-wrap span  { font-size: 11px; color: var(--accent-cyan); min-width: 30px; text-align: right; }

input[type=range] {
  flex: 1;
  height: 4px;
  -webkit-appearance: none;
  background: var(--border);
  border-radius: 2px;
  outline: none;
}

input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--accent-cyan);
  cursor: pointer;
  box-shadow: 0 0 6px rgba(6,182,212,0.5);
}

/* ── Load Button ── */
.load-btn {
  width: 100%;
  padding: 11px;
  background: linear-gradient(135deg, #1d4ed8, #0891b2);
  border: none;
  border-radius: 8px;
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1px;
  cursor: pointer;
  transition: all 0.2s;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.load-btn:hover { transform: translateY(-1px); box-shadow: 0 4px 20px rgba(29,78,216,0.4); }
.load-btn:active { transform: none; }
.load-btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

.load-btn .spinner {
  width: 14px; height: 14px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  display: none;
}

.load-btn.loading .spinner { display: block; }
.load-btn.loading .btn-text { opacity: 0.7; }

@keyframes spin { to { transform: rotate(360deg); } }

/* ── Metadata Card ── */
.meta-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
}

.meta-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 7px 9px;
}

.meta-item .meta-label {
  font-size: 9px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 2px;
}

.meta-item .meta-value {
  font-size: 11px;
  color: var(--text-primary);
  font-family: 'JetBrains Mono', monospace;
}

/* ── Colorbar ── */
#colorbar-section {
  padding: 12px 16px;
}

#colorbar-canvas {
  width: 100%;
  height: 18px;
  border-radius: 4px;
  border: 1px solid var(--border);
  margin-bottom: 4px;
}

.colorbar-labels {
  display: flex;
  justify-content: space-between;
  font-size: 10px;
  color: var(--text-secondary);
}

/* ── Pixel Info ── */
#pixel-info {
  padding: 10px 16px;
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  font-size: 11px;
  font-family: 'JetBrains Mono', monospace;
  color: var(--text-secondary);
  min-height: 42px;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

#pixel-info .pi-row { display: flex; gap: 12px; }
#pixel-info .pi-label { color: var(--text-dim); min-width: 50px; }
#pixel-info .pi-val   { color: var(--accent-cyan); }

/* ── Mapbox overrides ── */
.mapboxgl-ctrl-logo { display: none !important; }
.mapboxgl-ctrl-attrib { font-size: 9px !important; opacity: 0.4 !important; }

/* ── Loading overlay ── */
#loading-overlay {
  position: fixed;
  inset: 0;
  background: rgba(10,14,26,0.85);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 200;
  gap: 16px;
  backdrop-filter: blur(4px);
}

#loading-overlay.hidden { display: none; }

.loading-spinner {
  width: 48px; height: 48px;
  border: 3px solid var(--border);
  border-top-color: var(--accent-cyan);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

#loading-text {
  font-size: 13px;
  color: var(--text-secondary);
  letter-spacing: 1px;
}

/* ── Band legend ── */
.band-legend {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 8px;
}

.band-legend-item {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 10px;
  color: var(--text-dim);
}

.band-legend-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
}

/* ── Error message ── */
#error-msg {
  display: none;
  background: rgba(239,68,68,0.1);
  border: 1px solid rgba(239,68,68,0.3);
  border-radius: 6px;
  padding: 10px 12px;
  font-size: 12px;
  color: #fca5a5;
  margin: 12px 16px;
}

#error-msg.visible { display: block; }

/* ── Responsive ── */
@media (max-width: 768px) {
  :root { --panel-width: 100%; }
  #map { left: 0; top: calc(var(--header-height) + 300px); bottom: 0; }
  #panel { height: 300px; bottom: auto; }
}