:root,
[data-theme="brass"] {
  --accent:      #b08d57;
  --accent-dim:  #8a6c3e;
  --text:        #f1e5c8;
  --panel-bg:    linear-gradient(180deg, #2a1408, #1a0904);
  --tooltip-bg:  linear-gradient(180deg, #2a1408ee, #1a0904ee);
  --page-bg:     radial-gradient(ellipse at center, #1a0d05, #050200);
  --input-bg:    #0d0703;
  --font-ui:     "Garamond", "Times New Roman", serif;
  --tracking:    0.22em;
  --transform:   uppercase;
  --border-w:    2px;
  --shadow:      0 6px 24px rgba(0,0,0,0.7),
                 inset 0 0 14px rgba(176,141,87,0.18);
}

[data-theme="modern"] {
  --accent:      #6cd4ff;
  --accent-dim:  #3d7e9a;
  --text:        #e6e8ea;
  --panel-bg:    linear-gradient(180deg, rgba(20,24,32,0.88), rgba(10,12,18,0.88));
  --tooltip-bg:  linear-gradient(180deg, rgba(20,24,32,0.94), rgba(10,12,18,0.94));
  --page-bg:     linear-gradient(180deg, #04060b, #0a0c12);
  --input-bg:    rgba(0,0,0,0.4);
  --font-ui:     system-ui, -apple-system, "Segoe UI", sans-serif;
  --tracking:    0;
  --transform:   none;
  --border-w:    1px;
  --shadow:      0 6px 32px rgba(0,0,0,0.55),
                 0 0 0 1px rgba(108,212,255,0.10);
}

* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body {
  background: var(--page-bg);
  color: var(--text);
  font-family: var(--font-ui);
  overflow: hidden;
}
#cabinet { position: fixed; inset: 0; }
#stage { width: 100%; height: 100%; display: block; }

#panel {
  position: absolute;
  top: 16px;
  left: 16px;
  background: var(--panel-bg);
  border: var(--border-w) solid var(--accent);
  border-radius: 4px;
  padding: 12px 14px;
  min-width: 320px;
  box-shadow: var(--shadow);
}
#panel h1 {
  font-size: 18px;
  margin: 0 0 10px;
  letter-spacing: var(--tracking);
  text-transform: var(--transform);
  color: var(--accent);
  border-bottom: 1px solid var(--accent-dim);
  padding-bottom: 6px;
  cursor: pointer;
  user-select: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
#panel h1 .chevron {
  display: inline-block;
  font-size: 0.85em;
  transition: transform 0.3s ease;
  text-transform: none;
  letter-spacing: 0;
}
#panel.collapsed h1 {
  margin-bottom: 0;
  border-bottom-color: transparent;
  padding-bottom: 0;
}
#panel.collapsed h1 .chevron {
  transform: rotate(-90deg);
}
[data-id="panelBody"] {
  max-height: 800px;
  overflow: hidden;
  transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}
#panel.collapsed [data-id="panelBody"] {
  max-height: 0;
}
.collapsed-time {
  display: none;
  font-size: 12px;
  letter-spacing: var(--tracking);
  text-transform: var(--transform);
  color: var(--accent);
  margin-top: 6px;
  padding-top: 6px;
  border-top: 1px solid var(--accent-dim);
  text-align: center;
  font-variant-numeric: tabular-nums;
}
#panel.collapsed .collapsed-time {
  display: block;
}
.row {
  display: flex;
  gap: 8px;
  margin: 6px 0;
  flex-wrap: wrap;
  align-items: center;
}
.section { margin: 10px 0; }
.section-title {
  font-size: 11px;
  letter-spacing: var(--tracking);
  text-transform: var(--transform);
  color: var(--accent);
  border-bottom: 1px solid var(--accent-dim);
  padding-bottom: 3px;
  margin-bottom: 6px;
}
.checkbox-column {
  display: flex;
  flex-direction: column;
  gap: 3px;
}
.checkbox-column .satellite,
.checkbox-column .suboption { padding-left: 18px; }
.checkbox-column .suboption input:disabled + * { opacity: 0.4; }
.checkbox-column .suboption input:disabled { opacity: 0.4; }
.size-row {
  display: flex;
  align-items: center;
  gap: 8px;
}
.size-row label { flex-shrink: 0; }
.size-row input[type="range"] {
  flex: 1;
  min-width: 0;
  accent-color: var(--accent);
}
.size-row input[type="range"]:disabled { opacity: 0.4; }
.checkbox-column .master {
  color: var(--accent);
  border-bottom: 1px dashed var(--accent-dim);
  padding-bottom: 3px;
  margin-bottom: 3px;
}
label {
  font-size: 12px;
  display: flex;
  gap: 4px;
  align-items: center;
  color: var(--text);
}
input:not([type="checkbox"]), select, button {
  background: var(--input-bg);
  color: var(--text);
  border: 1px solid var(--accent);
  padding: 3px 6px;
  font-family: inherit;
  font-size: 13px;
}
input[type="checkbox"] {
  accent-color: var(--accent);
  margin: 0 4px 0 0;
}
input[data-id="year"]  { width: 70px; }
input[data-id="month"], input[data-id="day"] { width: 50px; }
input.time-part        { width: 48px; text-align: center; }
.time-sep              { color: var(--accent-dim); margin: 0 1px; }
input[data-id="jd"]    { width: 140px; }
button { cursor: pointer; }
button:hover { background: var(--accent); color: var(--input-bg); }
.icon-button {
  width: 28px;
  height: 28px;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.icon-button svg {
  width: 14px;
  height: 14px;
  fill: currentColor;
}
.icon-button .icon-pause { display: none; }
.icon-button.playing .icon-play { display: none; }
.icon-button.playing .icon-pause { display: inline; }
.note { font-size: 11px; color: var(--accent-dim); margin: 8px 0 0; }
.footer {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  margin-top: 8px;
}
.footer .note { flex: 1; margin: 0; }
.footer-buttons {
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex-shrink: 0;
}
.footer-buttons button { width: 100%; }

#tooltip,
#info-box,
#credits-box {
  position: fixed;
  display: none;
  z-index: 100;
  min-width: 220px;
  max-width: 300px;
  background: var(--tooltip-bg);
  border: var(--border-w) solid var(--accent);
  border-radius: 4px;
  padding: 8px 12px 10px;
  color: var(--text);
  font-family: var(--font-ui);
  font-size: 12px;
  line-height: 1.5;
  box-shadow: var(--shadow);
}
#tooltip { pointer-events: none; }
#tooltip.visible,
#info-box.visible,
#credits-box.visible { display: block; }
#tooltip h3,
#info-box h3,
#credits-box h3 {
  margin: 0 0 6px;
  padding-bottom: 4px;
  border-bottom: 1px solid var(--accent-dim);
  color: var(--accent);
  font-size: 14px;
  letter-spacing: var(--tracking);
  text-transform: var(--transform);
}
#tooltip dl,
#info-box dl,
#credits-box dl {
  margin: 0;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 2px 12px;
}
#tooltip dt,
#info-box dt,
#credits-box dt { color: var(--accent-dim); }
#tooltip dd,
#info-box dd,
#credits-box dd { margin: 0; color: var(--text); }
#tooltip sup,
#info-box sup { font-size: 0.8em; }
#credits-box {
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  min-width: 280px;
}
#credits-box a { color: var(--accent); text-decoration: underline; }
#credits-box a:hover { color: var(--text); }
#credits-box .credits-note {
  margin: 10px 0 0;
  padding-top: 6px;
  border-top: 1px solid var(--accent-dim);
  font-size: 11px;
  color: var(--accent-dim);
  text-align: center;
}

#labels {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 5;
}
.label {
  position: absolute;
  pointer-events: auto;
  cursor: pointer;
  white-space: nowrap;
  font-family: var(--font-ui);
  font-size: 11px;
  letter-spacing: var(--tracking);
  text-transform: var(--transform);
  color: var(--accent);
  background: var(--tooltip-bg);
  border: 1px solid var(--accent-dim);
  border-radius: 2px;
  padding: 1px 6px;
  user-select: none;
}
.label:hover { border-color: var(--accent); }
#label-lines {
  position: absolute;
  top: 0;
  left: 0;
  pointer-events: none;
  z-index: 4;
}
.label-line {
  stroke: var(--accent-dim);
  stroke-width: 1;
}
#panel { z-index: 50; }