:root{
  --page-top:#d9f0fa;--page-mid:#eef8fc;--page-bottom:#d9f0fa;
  --surface:rgba(255,255,255,.90);--surface-solid:#fff;--surface-soft:#f7fbfd;
  --border:rgba(27,95,134,.13);--chart-grid:rgba(27,95,134,.13);
  --chart-text:#637888;--chart-cursor:#173f55;--tooltip-bg:rgba(20,48,64,.96);
  --history-missing-fill:#e0e4e7;--history-missing-stripe:#9ba7ad;
  --history-future-fill:#eef4f7;--history-future-stripe:#bdcbd2;
}
html[data-theme="twilight"]{
  --page-top:#b9cad8;--page-mid:#dce6ec;--page-bottom:#9fb6c7;
  --surface:rgba(241,247,250,.92);--surface-solid:#f3f8fa;--surface-soft:#e9f1f5;
  --border:rgba(37,76,99,.22);--chart-grid:rgba(38,75,98,.18);
  --chart-text:#4e6675;--chart-cursor:#173f55;
  --history-missing-fill:#d7dde1;--history-missing-stripe:#8c9aa2;
  --history-future-fill:#e8f0f4;--history-future-stripe:#afc0c9;
}
html[data-theme="night"]{
  --blue:#85c8ed;--light:#233e50;--card:#172b38;--text:#e7f1f6;--muted:#adbfca;
  --page-top:#081722;--page-mid:#102735;--page-bottom:#07141e;
  --surface:rgba(20,42,56,.94);--surface-solid:#172e3d;--surface-soft:#1c3748;
  --border:rgba(151,201,229,.18);--chart-grid:rgba(170,213,236,.16);
  --chart-text:#b6c9d4;--chart-cursor:#d9f2ff;--tooltip-bg:rgba(5,19,28,.97);
  --history-missing-fill:#3c454b;--history-missing-stripe:#7d898f;
  --history-future-fill:#263944;--history-future-stripe:#536b78;
  --shadow:0 10px 30px rgba(0,0,0,.28);
}
html,body{min-height:100%}
body{
  background:linear-gradient(180deg,var(--page-top) 0,var(--page-mid) 60%,var(--page-bottom));
  transition:background-color .9s ease,color .9s ease;
}
body:before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:-1;opacity:0;
  background-image:radial-gradient(circle at 12% 18%,rgba(255,255,255,.52) 0 1px,transparent 1.5px),radial-gradient(circle at 76% 9%,rgba(255,255,255,.4) 0 1px,transparent 1.4px),radial-gradient(circle at 58% 34%,rgba(255,255,255,.28) 0 1px,transparent 1.3px);
  background-size:180px 180px,260px 260px,330px 330px;transition:opacity .9s ease;
}
html[data-theme="night"] body:before{opacity:.42}
.card,.box,.recCard,.ratingBox,.historyChart,.advisorBox,.infoPopover,.radarConsent{
  transition:background-color .9s ease,border-color .9s ease,color .9s ease,box-shadow .9s ease;
}
.card{background:var(--surface);border-color:var(--border)}
.box,.recCard,.ratingBox,.historyChart{background:var(--surface-soft);border-color:var(--border)}
.recButton,.infoBtn,.infoPopover{background:var(--surface-solid);color:var(--text)}
.advisorBox{background:linear-gradient(135deg,var(--surface-soft),var(--surface-solid))}
html[data-theme="night"] .radarConsent{background:linear-gradient(135deg,#173242,#1b3544)}
html[data-theme="night"] .radar img,html[data-theme="night"] .radarFrame{background:#132c3b;border-color:var(--border)}
html[data-theme="night"] .windOverlay{background:linear-gradient(145deg,rgba(12,31,43,.76),rgba(22,51,67,.63));border-color:rgba(195,226,243,.25)}
html[data-theme="night"] .compass{background:radial-gradient(circle at center,rgba(219,239,249,.13) 0 52%,rgba(133,200,237,.12) 53% 100%);border-color:rgba(171,216,241,.34)}
html[data-theme="night"] .compass span{color:#cbe9f8}
.themeControls{display:flex;align-items:center;justify-content:flex-end;gap:8px;margin:-2px 0 12px}
.dayPhaseIndicator{font-size:13px;font-weight:800;color:var(--blue);white-space:nowrap}
.themeSelect,.historyToolbar button{
  border:1px solid var(--border);border-radius:999px;background:var(--surface-solid);color:var(--text);
  font:inherit;font-size:12px;font-weight:700;padding:6px 10px;cursor:pointer;
}
.historyToolbar{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin:12px 0}
.historyRange{display:flex;flex-wrap:wrap;gap:5px}
.historyToolbar button.active{background:var(--blue);color:#fff;border-color:var(--blue)}
.historyNowButton{margin-left:auto}
.historyDetailsToggle{
  display:inline-flex;align-items:center;gap:6px;min-height:40px;margin:0 0 2px;padding:7px 5px;
  border:0;border-radius:7px;background:transparent;color:var(--blue);font:inherit;font-size:13px;font-weight:700;
  line-height:1.2;cursor:pointer;touch-action:manipulation;
}
.historyDetailsToggle:hover{background:rgba(27,95,134,.07)}
.historyDetailsToggle:focus-visible{outline:3px solid rgba(27,95,134,.32);outline-offset:2px}
.historyDetailsArrow{display:inline-block;width:0.9em;text-align:center;font-size:14px;line-height:1}
.historyCursorPanel{
  --history-summary-line:1.25rem;
  border:1px solid var(--border);border-radius:14px;background:var(--surface-soft);padding:10px 12px;margin:10px 0 14px;
  color:var(--text);overflow:hidden;
}
.historySummaryHeader{height:var(--history-summary-line);line-height:var(--history-summary-line);color:var(--blue);font-weight:800;margin-bottom:7px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.historySummaryGrid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;align-items:start}
.historySummaryColumn{display:grid;grid-auto-flow:row;gap:8px;min-width:0}
.historySummaryBlock{
  display:grid;grid-template-rows:repeat(3,var(--history-summary-line));min-width:0;
  border-left:2px solid var(--border);padding-left:8px;font-size:12px;line-height:var(--history-summary-line);
}
.historySummaryBlock[data-summary-id="flightHistory"]{grid-template-rows:repeat(9,var(--history-summary-line))}
.historySummaryTitle,.historySummaryRow{display:block;min-width:0;height:var(--history-summary-line);line-height:var(--history-summary-line);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.historySummaryTitle{color:var(--blue);font-size:12px}
.historySummaryRow{display:flex;gap:4px;color:var(--muted)}
.historySummaryLabel{flex:0 0 auto}
.historySummaryValue{display:block;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--text)}
.historySummaryMissing{color:var(--muted);font-weight:400}
.historyChart canvas{touch-action:pan-y;outline:none;border-radius:10px}
.historyChart canvas:focus-visible{box-shadow:0 0 0 3px rgba(27,95,134,.28)}
@media(max-width:760px){
  .historySummaryGrid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .themeControls{justify-content:flex-start;margin-top:2px}
}
@media(max-width:480px){
  .historyDetailsToggle{min-height:44px;padding:9px 5px}
  .historyCursorPanel{height:24rem;overflow-y:auto;overscroll-behavior:contain}
  .historySummaryGrid{grid-template-columns:1fr}
  .historyNowButton{margin-left:0}
  body:before{display:none}
}
@media(prefers-reduced-motion:reduce){
  body,.card,.box,.recCard,.ratingBox,.historyChart,.advisorBox,.infoPopover,.radarConsent{transition:none}
}