@import url('https://fonts.googleapis.com/css2?family=Syne:wght@400;600;700;800&family=JetBrains+Mono:wght@300;400;500&display=swap');

:root {
  --bg:         #080c12;
  --bg2:        #0d1420;
  --bg3:        #111827;
  --surface:    #141c2b;
  --surface2:   #1a2438;
  --border:     #1e2d44;
  --border2:    #263650;

  --amber:      #f59e0b;
  --amber-dim:  #b45309;
  --amber-glow: rgba(245,158,11,0.12);

  --green:      #10b981;
  --red:        #ef4444;
  --orange:     #f97316;
  --blue:       #3b82f6;
  --purple:     #8b5cf6;
  --pink:       #ec4899;

  --text:       #e2e8f0;
  --text2:      #94a3b8;
  --text3:      white;

  --sidebar-w:  240px;
  --header-h:   64px;

  --font-head:  'Syne', sans-serif;
  --font-mono:  'JetBrains Mono', monospace;

  --radius:     8px;
  --radius-lg:  12px;
  --shadow:     0 4px 24px rgba(0,0,0,0.5);
}

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

html, body {
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.6;
  overflow-x: hidden;
}

/* ── LAYOUT ── */
.app-shell {
  display: flex;
  height: 100vh;
  overflow: hidden;
}

/* ── SIDEBAR ── */
.sidebar {
  width: var(--sidebar-w);
  min-width: var(--sidebar-w);
  background: var(--bg2);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  z-index: 10;
}

.sidebar-logo {
  padding: 20px 20px 16px;
  border-bottom: 1px solid var(--border);
}

.logo-mark {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.logo-icon-wrap {
  width: 36px; height: 36px;
  background: var(--amber-glow);
  border: 1px solid var(--amber-dim);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  color: var(--amber);
}

.logo-text { font-family: var(--font-head); font-size: 15px; font-weight: 800; color: var(--text); }
.logo-sub  { font-size: 10px; color: var(--text3); letter-spacing: 0.1em; text-transform: uppercase; }

.nav-section {
  padding: 16px 12px 8px;
  font-size: 10px; font-weight: 500;
  color: var(--text3); letter-spacing: 0.12em; text-transform: uppercase;
}

.nav-item {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 12px;
  margin: 2px 8px;
  border-radius: var(--radius);
  color: var(--text2);
  text-decoration: none;
  font-size: 12px;
  font-family: var(--font-mono);
  transition: all 0.15s;
}
.nav-item:hover { background: var(--surface); color: var(--text); }
.nav-item.active { background: var(--amber-glow); color: var(--amber); border: 1px solid rgba(245,158,11,0.2); }
.nav-item svg { flex-shrink: 0; opacity: 0.7; }
.nav-item.active svg { opacity: 1; }

.sidebar-footer {
  margin-top: auto;
  padding: 16px;
  border-top: 1px solid var(--border);
  font-size: 10px;
  color: var(--text3);
}

/* ── MAIN CONTENT ── */
.main {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.topbar {
  height: var(--header-h);
  min-height: var(--header-h);
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
  display: flex; align-items: center; justify-content: space-between;
}

.topbar-title h1 {
  font-family: var(--font-head);
  font-size: 18px; font-weight: 700;
  color: var(--text);
}
.topbar-title p { font-size: 11px; color: var(--text3); }

.topbar-right { display: flex; align-items: center; gap: 16px; }

.status-pill {
  display: flex; align-items: center; gap: 6px;
  padding: 4px 10px;
  background: rgba(16,185,129,0.1);
  border: 1px solid rgba(16,185,129,0.3);
  border-radius: 20px;
  font-size: 11px; color: var(--green);
}
.status-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--green); animation: pulse 2s infinite; }

.airport-selector {
  background: var(--surface);
  border: 1px solid var(--border2);
  color: var(--text);
  padding: 6px 12px;
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 12px;
  cursor: pointer;
  outline: none;
}

.page-body {
  flex: 1;
  overflow-y: auto;
  padding: 24px;
  background: var(--bg);
}

/* ── CARDS ── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
}

.card-head {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 16px;
}

.card-title {
  font-family: var(--font-head);
  font-size: 13px; font-weight: 700;
  color: var(--text2);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* ── KPI GRID ── */
.kpi-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; margin-bottom: 20px; }

.kpi-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 16px;
  position: relative;
  overflow: hidden;
}
.kpi-card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: var(--kpi-color, var(--amber));
}
.kpi-label { font-size: 10px; color: var(--text3); text-transform: uppercase; letter-spacing: 0.1em; }
.kpi-value { font-family: var(--font-head); font-size: 28px; font-weight: 800; color: var(--text); margin: 4px 0; line-height: 1; }
.kpi-sub   { font-size: 10px; color: var(--text3); }
.kpi-badge { display: inline-block; margin-top: 4px; padding: 2px 7px; border-radius: 10px; font-size: 10px; }

/* ── AIRPORT TABS ── */
.airport-tabs { display: flex; gap: 4px; margin-bottom: 20px; flex-wrap: wrap; }
.airport-tab {
  padding: 6px 14px; border-radius: var(--radius);
  font-family: var(--font-mono); font-size: 12px;
  background: var(--surface); border: 1px solid var(--border);
  color: var(--text2); cursor: pointer; transition: all 0.15s;
}
.airport-tab:hover { border-color: var(--border2); color: var(--text); }
.airport-tab.active { background: var(--amber-glow); border-color: rgba(245,158,11,0.3); color: var(--amber); }

/* ── TABLES ── */
.data-table { width: 100%; border-collapse: collapse; }
.data-table th {
  padding: 8px 12px; text-align: left;
  font-size: 10px; font-weight: 500; letter-spacing: 0.1em;
  color: var(--text3); text-transform: uppercase;
  border-bottom: 1px solid var(--border);
}
.data-table td {
  padding: 10px 12px;
  font-size: 12px; color: var(--text2);
  border-bottom: 1px solid var(--border);
}
.data-table tr:last-child td { border-bottom: none; }
.data-table tr:hover td { background: rgba(255,255,255,0.02); }

/* ── STATUS BADGES ── */
.badge {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 2px 8px; border-radius: 20px;
  font-size: 10px; font-weight: 500;
}
.badge-green  { background: rgba(16,185,129,0.12); color: var(--green); }
.badge-red    { background: rgba(239,68,68,0.12);  color: var(--red); }
.badge-orange { background: rgba(249,115,22,0.12); color: var(--orange); }
.badge-amber  { background: rgba(245,158,11,0.12); color: var(--amber); }
.badge-blue   { background: rgba(59,130,246,0.12); color: var(--blue); }

/* ── PROGRESS BAR ── */
.progress-wrap { background: var(--bg3); border-radius: 3px; height: 6px; overflow: hidden; }
.progress-fill { height: 100%; border-radius: 3px; transition: width 0.8s ease; }

/* ── CHARTS (canvas wrapper) ── */
.chart-wrap { position: relative; }
canvas { display: block; }

/* ── GRID LAYOUTS ── */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px; }
.grid-2-1 { display: grid; grid-template-columns: 2fr 1fr; gap: 16px; }
.grid-1-2 { display: grid; grid-template-columns: 1fr 2fr; gap: 16px; }

/* ── ANIMATIONS ── */
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:0.4} }
@keyframes fadeIn { from{opacity:0;transform:translateY(8px)} to{opacity:1;transform:none} }
.fade-in { animation: fadeIn 0.4s ease forwards; }

/* ── SCROLLBAR ── */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: var(--bg2); }
::-webkit-scrollbar-thumb { background: var(--border2); border-radius: 3px; }

/* ── RESPONSIVE ── */
@media (max-width: 1100px) {
  .kpi-grid { grid-template-columns: repeat(3, 1fr); }
  .grid-2, .grid-2-1, .grid-1-2 { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .sidebar { display: none; }
  .kpi-grid { grid-template-columns: repeat(2, 1fr); }
}