:root {
  color-scheme: light;
  --ink: #082747;
  --blue: #12669a;
  --muted: #526b7d;
  --paper: #ffffff;
  --foam: #ffffff;
  --line: #d9e2e4;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, sans-serif;
  color: var(--ink);
  background: var(--paper);
  font-size: 15px;
  line-height: 1.55;
}
* { box-sizing: border-box; }
body { max-width: 1500px; margin: auto; padding: 24px 36px; }
h1, h2, h3, p { margin: 0; }
h1 { font-size: clamp(1.35rem, 2.7vw, 2rem); font-weight: 650; letter-spacing: -.04em; line-height: 1.2; }
h2 { font-size: 1.15rem; font-weight: 650; letter-spacing: -.02em; }
h3 { font-size: .9rem; font-weight: 650; margin-bottom: 4px; }
a { color: var(--blue); text-underline-offset: 3px; }
a:hover { color: var(--ink); }
button, input, select { font: inherit; color: var(--ink); accent-color: var(--blue); }
button, select, input[type=number] { border: 1px solid #bacbd4; border-radius: 6px; background: var(--foam); padding: 7px 10px; }
button, select, summary { cursor: pointer; }
button:hover, select:hover { border-color: var(--blue); background: #edf4f7; }
button:focus-visible, input:focus-visible, select:focus-visible, a:focus-visible, summary:focus-visible { outline: 3px solid #63a8c9; outline-offset: 3px; }
input[type=number] { width: 76px; }
label { display: inline-flex; align-items: center; gap: 8px; color: var(--muted); font-size: .9rem; }
.site-header { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding-bottom: 20px; border-bottom: 1px solid var(--line); }
.brand { display: flex; align-items: center; gap: 18px; min-width: 0; }
.site-logo { display: block; width: 80px; height: 80px; object-fit: contain; flex: none; }
.eyebrow { font-size: .72rem; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); margin-bottom: 6px; }
.header-actions { display: flex; align-items: flex-end; gap: 16px; flex-wrap: wrap; }
.download-actions { display: flex; align-items: center; gap: 12px; min-height: 44px; }
.download-help { display: inline-flex; align-items: center; gap: 5px; min-height: 44px; font-size: .8rem; text-decoration: none; white-space: nowrap; }
.help-icon { display: inline-flex; align-items: center; justify-content: center; width: 17px; height: 17px; border: 1px solid currentColor; border-radius: 50%; font-size: .72rem; font-weight: 650; }
.help-format { font-size: .62rem; letter-spacing: .05em; color: var(--muted); }
.day-control { flex-direction: column; align-items: flex-start; gap: 3px; font-size: .72rem; }
.day-control select { font-size: .9rem; height: 44px; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 18px; border-radius: 6px; padding: 10px 16px; font-size: .9rem; text-decoration: none; font-weight: 600; white-space: nowrap; }
.button-primary { background: var(--ink); color: var(--foam); border: 1px solid var(--ink); }
.header-actions .button-primary { height: 44px; }
.button-primary:hover { background: var(--blue); color: var(--foam); border-color: var(--blue); }
.button[aria-disabled=true] { opacity: .45; pointer-events: none; }
.observation-status { display: flex; align-items: center; gap: 10px; padding: 14px 0; }
.status-dot { width: 6px; height: 6px; background: var(--blue); border-radius: 50%; flex: none; }
.status, .legend, .plot-note, .section-description, .section-note, .details { font-size: .84rem; color: var(--muted); }
.warn { color: #8b5d25; }
.view-toolbar { display: flex; align-items: flex-start; justify-content: space-between; flex-wrap: wrap; gap: 12px; padding: 12px 0 18px; }
.settings { min-width: 190px; text-align: right; }
.settings summary { padding: 7px 0; color: var(--blue); font-size: .9rem; }
.settings-content { text-align: left; padding: 18px; margin-top: 10px; background: var(--foam); border: 1px solid var(--line); border-radius: 8px; }
.settings-content p { font-size: .8rem; color: var(--muted); }
.settings-content > div + div { margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--line); }
.control-row { display: flex; flex-wrap: wrap; gap: 10px 20px; margin-top: 12px; }
.control-row label { font-size: .8rem; }
.control-row span { color: var(--muted); }
.hsv-settings { display: none; }
body[data-display=hsv] .hsv-settings { display: block; }
.plot-section { padding: 24px 0 28px; border-top: 1px solid var(--line); }
.section-heading { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 10px; margin-bottom: 8px; }
.section-note { font-size: .75rem; }
.controls { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.legend, .section-description { margin: 6px 0 14px; }
.plot-note { display: flex; align-items: center; gap: 8px; margin-top: 10px; font-size: .75rem; }
.key { width: 9px; height: 9px; display: inline-block; border-radius: 2px; }
.key.missing { background: #9eacb5; }
.key.censored { background: var(--ink); margin-left: 14px; }
#rti, #rd, #timeDoppler, #imagePlot { background: var(--paper); border: 1px solid var(--line); border-radius: 8px; padding: 12px 8px; overflow: auto; }
#imagePlot:empty { display: none; }
#imagePlot { max-width: 860px; margin-top: 12px; }
.imaging-controls { margin: 14px 0; }
.imaging-controls > .controls { margin-top: 12px; }
.imaging-controls [hidden], [hidden]#reweightControl { display: none; }
.experimental { font-size: .67rem; letter-spacing: .03em; color: var(--blue); border: 1px solid var(--line); padding: 1px 5px; border-radius: 4px; }
.imaging-references { color: var(--muted); font-size: .78rem; margin-top: 16px; max-width: 860px; }
.imaging-references summary { color: var(--blue); }
.imaging-references p { margin-top: 10px; }
#imageDiagnostics { display: block; overflow-wrap: anywhere; }
#imagePlot[aria-busy=true] { opacity: .5; }
.playback { margin: 14px 0 18px; }
.playback input { display: block; width: 100%; margin: 0 0 8px; }
.support-section { border-top: 1px solid var(--line); }
.support-section > summary { padding: 18px 0; font-size: .95rem; font-weight: 550; }
.support-content { padding: 0 0 24px; }
.support-content p + p { margin-top: 12px; }
.support-content .status { margin: 12px 0; }
.figure-scroll { overflow: auto; background: var(--paper); border-radius: 6px; }
.figure-scroll img { display: block; }
.figure-scroll img[hidden] { display: none; }
.diagnostic-plot { background: #fff; border: 1px solid var(--line); border-radius: 8px; padding: 12px 8px; margin: 14px 0; }
.diagnostic-plot:empty { display: none; }
#error { white-space: pre-wrap; overflow-wrap: anywhere; color: #a13c35; font-size: .85rem; }
#error:empty { display: none; }
footer { color: var(--muted); font-size: .73rem; padding-top: 24px; margin-top: 8px; border-top: 1px solid var(--line); }
.embedded .site-header, .embedded .support-section, .embedded footer { display: none; }
.embedded { padding: 5px; }
@media(max-width: 760px) {
  body { padding: 18px 16px; }
  .site-header { align-items: flex-start; flex-direction: column; gap: 18px; }
  .site-logo { width: 64px; height: 64px; }
  .brand { gap: 14px; }
  .header-actions { width: 100%; justify-content: space-between; }
  .view-toolbar { flex-direction: column; }
  .settings { width: 100%; text-align: left; }
  .settings-content { padding: 14px; }
  .control-row { flex-direction: column; }
  .plot-section { padding: 20px 0; }
  .section-heading { align-items: flex-start; }
}
.load-progress:not([hidden]) { display: grid; gap: 8px; padding: 14px 16px; margin-bottom: 16px; border: 1px solid #cbd5df; border-radius: 8px; }
.load-progress progress { width: 100%; height: 10px; accent-color: #173e62; }
#loadDetail { font-size: .85rem; color: #526b7d; }