/* === Theme === */
:root {
  --bg: #0b1220;
  --bg-elev: #121a2b;
  --bg-elev-2: #18223a;
  --border: #243049;
  --text: #e6ecf5;
  --text-dim: #93a3bf;
  --accent: #4cc9f0;
  --accent-2: #7c5cff;
  --visited: #4cc9f0;
  --visited-hover: #82dcfb;
  --unvisited: #1f2a44;
  --unvisited-stroke: #2c3a5a;
  --route: #7c5cff;
  --danger: #ff5d6a;
  --success: #4ade80;
  --shadow: 0 6px 24px rgba(0, 0, 0, 0.35);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--bg); color: var(--text); min-height: 100vh; }

/* === Header / Tabs === */
.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 28px;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg, #0e1626 0%, #0b1220 100%);
  position: sticky; top: 0; z-index: 10;
}
.brand { display: flex; align-items: baseline; gap: 12px; }
.brand h1 { margin: 0; font-size: 20px; letter-spacing: 0.2px; }
.brand .sub { color: var(--text-dim); font-size: 13px; }

.tabs { display: flex; gap: 4px; }
.tab {
  background: transparent; color: var(--text-dim); border: 1px solid transparent;
  padding: 8px 14px; border-radius: 8px; cursor: pointer; font-size: 14px; font-weight: 500;
}
.tab:hover { color: var(--text); background: var(--bg-elev); }
.tab.active { color: var(--text); background: var(--bg-elev); border-color: var(--border); }

.toolbar { display: flex; gap: 8px; }
.btn {
  background: var(--bg-elev); color: var(--text); border: 1px solid var(--border);
  padding: 8px 12px; border-radius: 8px; cursor: pointer; font-size: 13px;
}
.btn:hover { background: var(--bg-elev-2); }
.btn-primary { background: var(--accent); color: #0b1220; border-color: transparent; font-weight: 600; }
.btn-primary:hover { background: var(--visited-hover); }
.btn-danger { background: transparent; color: var(--danger); border-color: rgba(255,93,106,0.4); }
.btn-danger:hover { background: rgba(255,93,106,0.12); }
.btn-sm { padding: 4px 10px; font-size: 12px; }

/* === Panels === */
.panel { display: none; padding: 22px 28px 60px; }
.panel.active { display: block; }

/* === Map panel === */
.map-bar {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 16px; gap: 12px; flex-wrap: wrap;
}
.btn-share {
  background: var(--accent-2); color: #0b1220; border-color: transparent; font-weight: 600;
}
.btn-share:hover { background: #9b82ff; }
.map-toggle {
  display: inline-flex; background: var(--bg-elev); border: 1px solid var(--border);
  border-radius: 10px; padding: 4px;
}
.map-toggle button {
  background: transparent; color: var(--text-dim); border: none; padding: 6px 14px;
  border-radius: 7px; cursor: pointer; font-size: 13px; font-weight: 500;
}
.map-toggle button.active { background: var(--accent); color: #0b1220; }

.map-wrap {
  background: var(--bg-elev); border: 1px solid var(--border); border-radius: 14px;
  padding: 12px; box-shadow: var(--shadow); margin-bottom: 22px;
}
.map-wrap.hidden { display: none; }
.map-wrap svg { width: 100%; height: auto; display: block; }

.sphere { fill: #0d172a; stroke: var(--border); stroke-width: 0.6; }
.graticule { fill: none; stroke: #1c2842; stroke-width: 0.4; stroke-dasharray: 1,2; }
.country, .state { stroke: #0b1220; stroke-width: 0.5; transition: fill 0.15s ease; cursor: default; }
.country--unvisited, .state--unvisited { fill: var(--unvisited); }
.country--visited, .state--visited { fill: var(--visited); }
.country--manual, .state--manual { fill: #5b8bbd; }
.country:hover, .state:hover { fill: var(--visited-hover); cursor: pointer; }
.country--unvisited:hover, .state--unvisited:hover { fill: #2c3a5a; cursor: default; }

.route { fill: none; stroke: var(--route); stroke-opacity: 0.55; pointer-events: none; }
.airport-dot { fill: #ffe45e; stroke: #0b1220; stroke-width: 0.6; pointer-events: none; }

/* === Stat cards === */
.stat-cards {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px;
}
.stat-card {
  background: linear-gradient(140deg, var(--bg-elev) 0%, var(--bg-elev-2) 100%);
  border: 1px solid var(--border); border-radius: 14px; padding: 18px 20px; box-shadow: var(--shadow);
}
.stat-label { color: var(--text-dim); font-size: 12px; text-transform: uppercase; letter-spacing: 0.8px; }
.stat-value { font-size: 32px; font-weight: 700; margin-top: 6px; color: var(--accent); }
.stat-value--small { font-size: 18px; word-break: break-word; }
.stat-sub { color: var(--text-dim); font-size: 12px; margin-top: 4px; }
.stat-divider { color: var(--text-dim); font-weight: 400; }

/* === Forms === */
.form-card {
  max-width: 720px; background: var(--bg-elev); border: 1px solid var(--border);
  border-radius: 14px; padding: 24px; box-shadow: var(--shadow);
}
.form-card h2 { margin-top: 0; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-bottom: 12px; }
.form-row.full { grid-template-columns: 1fr; }
label.field { display: flex; flex-direction: column; gap: 4px; font-size: 13px; color: var(--text-dim); }
input[type=text], input[type=date] {
  background: #0d172a; color: var(--text); border: 1px solid var(--border);
  border-radius: 8px; padding: 8px 10px; font-size: 14px; font-family: inherit;
}
input.code { text-transform: uppercase; letter-spacing: 1px; font-family: "SF Mono", Consolas, monospace; }
input:focus { outline: 2px solid var(--accent); outline-offset: 0; }
.form-actions { display: flex; gap: 10px; margin-top: 8px; }
.helper { color: var(--text-dim); font-size: 12px; margin-top: 6px; }

/* === Edit table === */
.edit-toolbar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 14px; flex-wrap: wrap; gap: 8px; }
.edit-toolbar .toolbar { gap: 8px; }
.edit-toolbar .note { color: var(--text-dim); font-size: 13px; }

.edit-table-wrap { background: var(--bg-elev); border: 1px solid var(--border); border-radius: 14px; overflow: auto; box-shadow: var(--shadow); }
.edit-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.edit-table th, .edit-table td { padding: 8px 10px; text-align: left; border-bottom: 1px solid var(--border); }
.edit-table th { background: var(--bg-elev-2); color: var(--text-dim); font-weight: 500; font-size: 12px; text-transform: uppercase; letter-spacing: 0.6px; position: sticky; top: 0; }
.edit-table input { width: 100%; }

/* === Tooltip === */
#tooltip {
  position: fixed; display: none; pointer-events: none; z-index: 1000;
  background: rgba(13, 23, 42, 0.97); border: 1px solid var(--border); border-radius: 10px;
  padding: 10px 12px; max-width: 320px; box-shadow: var(--shadow); font-size: 12.5px;
  color: var(--text);
}
.tt-title { font-weight: 600; font-size: 14px; margin-bottom: 2px; }
.tt-meta { color: var(--text-dim); font-size: 11.5px; margin-bottom: 6px; }
.tt-list { list-style: none; margin: 0; padding: 0; max-height: 220px; overflow: auto; }
.tt-list li { display: flex; justify-content: space-between; gap: 10px; padding: 2px 0; }
.tt-date { color: var(--text-dim); }
.tt-route { font-family: "SF Mono", Consolas, monospace; font-size: 11.5px; }
.tt-more { color: var(--text-dim); font-size: 11.5px; margin-top: 4px; font-style: italic; }
.tt-empty { color: var(--text-dim); font-style: italic; }
.tt-manual { color: #c9d6ea; font-size: 11.5px; margin-top: 6px; padding-top: 6px; border-top: 1px dashed var(--border); }

/* === Places tab === */
.places-intro {
  background: var(--bg-elev); border: 1px solid var(--border); border-radius: 12px;
  padding: 14px 18px; margin-bottom: 18px; color: var(--text-dim); font-size: 13.5px;
  max-width: 920px; line-height: 1.5;
}
.places-intro strong { color: var(--text); }
.places-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(360px, 1fr)); gap: 18px; max-width: 1100px; }
.places-section {
  background: var(--bg-elev); border: 1px solid var(--border); border-radius: 14px;
  padding: 18px 18px 14px; box-shadow: var(--shadow);
}
.places-section h2 { margin: 0 0 12px; font-size: 16px; font-weight: 600; }
.place-add-form { display: flex; gap: 8px; margin-bottom: 14px; }
.place-add-form input { flex: 1; }
.places-list { display: flex; flex-direction: column; gap: 6px; max-height: 480px; overflow-y: auto; }
.place-row {
  display: grid; grid-template-columns: 160px 1fr auto; gap: 10px; align-items: center;
  padding: 6px 10px; background: #0d172a; border: 1px solid var(--border); border-radius: 8px;
}
.place-row .place-name { font-weight: 500; color: var(--text); font-size: 13.5px; }
.place-row input[type=text] { font-size: 13px; padding: 6px 8px; }
.empty-state {
  color: var(--text-dim); font-size: 13px; font-style: italic; padding: 12px 4px;
  text-align: center; border: 1px dashed var(--border); border-radius: 8px;
}

/* === Toast === */
#toast {
  position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%) translateY(10px);
  background: var(--bg-elev-2); border: 1px solid var(--border); color: var(--text);
  padding: 10px 16px; border-radius: 10px; font-size: 13px; opacity: 0;
  transition: opacity 0.2s ease, transform 0.2s ease; box-shadow: var(--shadow); z-index: 2000;
}
#toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* === Auth overlay === */
body.auth-locked { overflow: hidden; }
.auth-overlay {
  position: fixed; inset: 0; z-index: 5000;
  background: radial-gradient(ellipse at center, #0e1626 0%, #06090f 100%);
  display: flex; align-items: center; justify-content: center; padding: 20px;
}
.auth-overlay.hidden { display: none; }
.auth-card {
  background: var(--bg-elev); border: 1px solid var(--border); border-radius: 18px;
  padding: 40px 44px; max-width: 420px; width: 100%; box-shadow: 0 20px 60px rgba(0,0,0,0.6);
  text-align: center;
}
.auth-logo { font-size: 48px; margin-bottom: 4px; }
.auth-card h2 { margin: 8px 0 6px; font-size: 22px; }
.auth-sub { color: var(--text-dim); font-size: 13.5px; margin: 0 0 20px; line-height: 1.5; }
.auth-sub code {
  background: #0d172a; border: 1px solid var(--border); border-radius: 6px;
  padding: 1px 6px; font-size: 12.5px; color: var(--text);
}
.auth-state.hidden { display: none; }
.auth-actions { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }
.btn-lg { padding: 12px 22px; font-size: 14px; font-weight: 600; }
.auth-error { color: var(--danger); font-size: 13px; margin-top: 14px; }
.auth-error.hidden { display: none; }

.user-badge {
  background: var(--bg-elev-2); border: 1px solid var(--border); color: var(--text-dim);
  padding: 6px 10px; border-radius: 8px; font-size: 12px; max-width: 220px;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.user-badge.hidden { display: none; }
#btn-sign-out.hidden { display: none; }

/* === Responsive === */
@media (max-width: 720px) {
  .header { flex-direction: column; align-items: flex-start; gap: 10px; padding: 14px 16px; }
  .panel { padding: 16px; }
  .form-row { grid-template-columns: 1fr; }
  .map-bar { flex-direction: column; align-items: stretch; }
  .map-bar .btn-share { align-self: flex-end; }
  .auth-card { padding: 28px 24px; }
}

/* Airport hint shown beneath each IATA field in the Add Flight form. */
.airport-hint {
  font-size: 11.5px;
  color: var(--text-dim);
  margin-top: 4px;
  min-height: 1em;
  line-height: 1.35;
}
.airport-hint.hint-found   { color: #5fd49b; }
.airport-hint.hint-missing { color: #f1b545; }