/* ========================
   ALA Flight Dashboard CSS
   Dark glassmorphism theme
   ======================== */

:root {
  --bg-deep:       #050b18;
  --bg-card:       rgba(255,255,255,0.04);
  --bg-card-hover: rgba(255,255,255,0.07);
  --border:        rgba(255,255,255,0.08);
  --border-accent: rgba(99,179,237,0.4);

  --text-primary:  #f0f4ff;
  --text-secondary:#94a3b8;
  --text-muted:    #4a5568;

  --accent-blue:   #63b3ed;
  --accent-cyan:   #4fd1c5;
  --accent-green:  #68d391;
  --accent-orange: #f6ad55;
  --accent-purple: #b794f4;
  --accent-pink:   #fc8181;

  --grad-live:     linear-gradient(135deg,#1a3a2a,#0d4a3a);
  --grad-arr:      linear-gradient(135deg,#1a2a3a,#0d3a5a);
  --grad-dep:      linear-gradient(135deg,#2a1a3a,#3a0d5a);
  --grad-air:      linear-gradient(135deg,#2a2a1a,#3a3a0d);
  --grad-routes:   linear-gradient(135deg,#1a2a3a,#0a2a40);

  --radius:        16px;
  --shadow:        0 8px 32px rgba(0,0,0,0.4);
  --shadow-card:   0 4px 24px rgba(0,0,0,0.3);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', system-ui, sans-serif;
  background: var(--bg-deep);
  color: var(--text-primary);
  min-height: 100vh;
  background-image:
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(99,179,237,0.06) 0%, transparent 60%),
    radial-gradient(ellipse 60% 40% at 80% 80%, rgba(79,209,197,0.04) 0%, transparent 50%);
  background-attachment: fixed;
}

/* ============ HEADER ============ */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(5,11,24,0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  gap: 20px;
}

.header-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 1;
}

.logo-icon {
  font-size: 28px;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: drop-shadow(0 0 12px rgba(99,179,237,0.5));
}

.logo-title {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.3px;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.logo-sub {
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 0.5px;
  margin-top: 1px;
}

.header-status {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-secondary);
}

.status-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--text-muted);
  transition: background 0.3s;
}
.status-dot.online  { background: var(--accent-green); box-shadow: 0 0 8px var(--accent-green); animation: pulse 2s infinite; }
.status-dot.error   { background: var(--accent-pink); }
.status-dot.loading { background: var(--accent-orange); }

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

.divider { color: var(--border); }

.btn-refresh {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 18px;
  border: 1px solid var(--border-accent);
  border-radius: 8px;
  background: rgba(99,179,237,0.08);
  color: var(--accent-blue);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  font-family: inherit;
}
.btn-refresh:hover {
  background: rgba(99,179,237,0.15);
  border-color: var(--accent-blue);
  box-shadow: 0 0 12px rgba(99,179,237,0.2);
}
.btn-refresh:active { transform: scale(0.97); }
.btn-refresh.spinning .refresh-icon { animation: spin 0.8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ============ HERO ============ */
.hero {
  padding: 28px 0 0;
}

.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 24px;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

@media (max-width: 900px) { .stats-grid { grid-template-columns: repeat(2,1fr); } }
@media (max-width: 540px) { .stats-grid { grid-template-columns: 1fr; } }

.stat-card {
  border-radius: var(--radius);
  padding: 22px 24px;
  display: flex;
  align-items: center;
  gap: 18px;
  border: 1px solid var(--border);
  position: relative;
  overflow: hidden;
  transition: transform 0.2s, box-shadow 0.2s;
}
.stat-card::before {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.2s;
}
.stat-card:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.stat-card:hover::before { opacity: 1; }

.stat-live       { background: var(--grad-live); }
.stat-arrivals   { background: var(--grad-arr); }
.stat-departures { background: var(--grad-dep); }
.stat-airlines   { background: var(--grad-air); }
.stat-routes     { background: var(--grad-routes); }

.stat-icon { font-size: 36px; flex-shrink: 0; }

.stat-value {
  font-size: 38px;
  font-weight: 800;
  letter-spacing: -1px;
  line-height: 1;
  background: linear-gradient(135deg, #fff, rgba(255,255,255,0.7));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  margin-top: 4px;
}

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

/* ============ MAIN GRID ============ */
.main-grid {
  display: grid;
  grid-template-columns: 1fr 380px;
  grid-template-rows: auto auto auto auto;
  gap: 20px;
  padding-top: 20px;
  padding-bottom: 40px;
}

@media (max-width: 1100px) {
  .main-grid { grid-template-columns: 1fr; }
}

/* ============ CARDS ============ */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: border-color 0.2s, box-shadow 0.2s;
}
.card:hover {
  border-color: rgba(99,179,237,0.2);
  box-shadow: var(--shadow-card);
}

.card-map {
  grid-row: 1;
}

.card-region {
  grid-column: 1;
  grid-row: 2;
}

.charts-column {
  grid-column: 2;
  grid-row: 1 / 3;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

@media (max-width: 1100px) {
  .charts-column { grid-column: 1; grid-row: auto; }
  .card-region   { grid-column: 1; grid-row: auto; }
}

.card-wide {
  grid-column: 1 / -1;
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
  gap: 12px;
}

.card-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
}

/* ============ MAP ============ */
#map {
  height: 380px;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--border);
}

/* Leaflet dark override */
.leaflet-container { background: #0a1628; }
.leaflet-tile { filter: brightness(0.7) saturate(0.5); }

.map-legend {
  display: flex;
  gap: 20px;
  margin-top: 12px;
  flex-wrap: wrap;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text-secondary);
}

.dot {
  width: 10px; height: 10px;
  border-radius: 50%;
}
.dot-green  { background: var(--accent-green); box-shadow: 0 0 6px var(--accent-green); }
.dot-blue   { background: var(--accent-blue);  box-shadow: 0 0 6px var(--accent-blue); }
.dot-gray   { background: var(--text-muted); }

/* ============ BADGES ============ */
.badge {
  padding: 3px 10px;
  border-radius: 6px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.badge-live {
  background: rgba(104,211,145,0.15);
  border: 1px solid rgba(104,211,145,0.4);
  color: var(--accent-green);
}

.badge-pulse {
  background: rgba(104,211,145,0.15);
  border: 1px solid rgba(104,211,145,0.4);
  color: var(--accent-green);
  animation: badgePulse 2s infinite;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 3px 10px;
  border-radius: 6px;
}
@keyframes badgePulse {
  0%,100% { box-shadow: 0 0 0 0 rgba(104,211,145,0.4); }
  50% { box-shadow: 0 0 0 4px rgba(104,211,145,0); }
}

/* ============ TABS ============ */
.tab-group {
  display: flex;
  background: rgba(255,255,255,0.05);
  border-radius: 8px;
  padding: 3px;
}

.tab {
  padding: 5px 14px;
  border-radius: 6px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  font-family: inherit;
}

.tab.active {
  background: rgba(99,179,237,0.2);
  color: var(--accent-blue);
}

/* ============ CHARTS ============ */
.chart-wrap {
  position: relative;
  height: 200px;
}
.chart-wrap-donut {
  height: 180px;
}

/* ============ TABLE ============ */
.table-wrap {
  overflow-x: auto;
  border-radius: 10px;
}

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

.flights-table th {
  text-align: left;
  padding: 10px 14px;
  color: var(--text-muted);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

.flights-table td {
  padding: 11px 14px;
  border-bottom: 1px solid rgba(255,255,255,0.03);
  color: var(--text-primary);
  transition: background 0.15s;
}

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

.flights-table tbody tr:hover td {
  background: rgba(255,255,255,0.03);
}

.loading-cell {
  text-align: center;
  color: var(--text-muted);
  padding: 30px !important;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.spinner {
  width: 16px; height: 16px;
  border: 2px solid var(--border);
  border-top-color: var(--accent-blue);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  flex-shrink: 0;
}

.flight-callsign {
  font-weight: 600;
  color: var(--accent-blue);
  font-family: 'Courier New', monospace;
  letter-spacing: 0.5px;
}

.airline-tag {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  background: rgba(99,179,237,0.1);
  border: 1px solid rgba(99,179,237,0.2);
  font-size: 11px;
  color: var(--accent-blue);
}

.airport-code {
  font-family: 'Courier New', monospace;
  font-weight: 600;
  color: var(--accent-cyan);
}

.time-val {
  font-family: 'Courier New', monospace;
  color: var(--text-secondary);
}

.status-tag {
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 600;
}
.status-descend { background: rgba(104,211,145,0.15); color: var(--accent-green); }
.status-climb   { background: rgba(99,179,237,0.15);  color: var(--accent-blue); }
.status-cruise  { background: rgba(148,163,184,0.15); color: var(--text-secondary); }
.status-ground  { background: rgba(246,173,85,0.15);  color: var(--accent-orange); }

/* Region tags */
.region-tag   { padding: 2px 8px; border-radius: 4px; font-size: 11px; font-weight: 600; }
.region-kz    { background: rgba(104,211,145,0.15); color: #68d391; }
.region-cis   { background: rgba(182,148,244,0.15); color: #b794f4; }
.region-me    { background: rgba(246,173,85,0.15);  color: #f6ad55; }
.region-eu    { background: rgba(99,179,237,0.15);  color: #63b3ed; }
.region-as    { background: rgba(252,129,129,0.15); color: #fc8181; }

/* ============ DATA NOTE ============ */
.data-note {
  background: rgba(246,173,85,0.08);
  border: 1px solid rgba(246,173,85,0.25);
  border-radius: 8px;
  padding: 12px 16px;
  font-size: 12px;
  color: var(--accent-orange);
  margin-top: 12px;
  line-height: 1.6;
}
.data-note.hidden { display: none; }

/* ============ AIRCRAFT POPUP ============ */
.ac-popup {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 300px;
  background: rgba(10,22,44,0.95);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-accent);
  border-radius: 14px;
  padding: 18px;
  z-index: 1000;
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
  animation: slideUp 0.25s ease;
}
.ac-popup.hidden { display: none; }

@keyframes slideUp {
  from { transform: translateY(20px); opacity: 0; }
  to   { transform: translateY(0);    opacity: 1; }
}

.ac-popup-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.pop-callsign {
  font-size: 18px;
  font-weight: 700;
  color: var(--accent-blue);
  font-family: 'Courier New', monospace;
}

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

.pop-body { font-size: 13px; line-height: 1.8; color: var(--text-secondary); }
.pop-row { display: flex; justify-content: space-between; }
.pop-key { color: var(--text-muted); }
.pop-val { color: var(--text-primary); font-weight: 500; }

/* ============ FOOTER ============ */
.footer {
  text-align: center;
  padding: 24px;
  color: var(--text-muted);
  font-size: 12px;
  line-height: 1.8;
  border-top: 1px solid var(--border);
  margin-top: 20px;
}
.footer a {
  color: var(--accent-blue);
  text-decoration: none;
}
.footer a:hover { text-decoration: underline; }