/* File: Solar-System/styles.css */
body { margin: 0; overflow: hidden; background-color: #000; color: white; }
canvas { display: block; touch-action: none; -webkit-touch-callout: none; -webkit-tap-highlight-color: transparent; }
:root { --border-color:#555; --groove-bg:#333; --handle-bg:#555; --handle-border:#2a82da; --handle-hover:#3d8fe0; --bg-color:#333; --text-color:white; --highlight-color:#2a82da; --highlighted-text:white; --indicator-bg:#333; --checked-bg:#2a82da; --hover-bg:#444; --pressed-bg:#2a82da; --pressed-text:white; --track-bg:#333; }
:root {
  --font-ui: "Chakra Petch", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas,
    "Liberation Mono", monospace;
  --bg-color: rgba(10, 12, 22, 0.9);
  --text-color: rgba(240, 246, 255, 0.95);
  --muted-text: rgba(220, 230, 255, 0.78);
  --border-color: rgba(196, 215, 255, 0.18);
  --hover-bg: rgba(255, 255, 255, 0.08);
  --pressed-bg: rgba(91, 188, 255, 0.18);
  --pressed-text: rgba(240, 246, 255, 0.96);
  --highlight-color: #5bbcff;
  --highlighted-text: rgba(7, 16, 31, 0.95);
  --track-bg: rgba(255, 255, 255, 0.14);
  --handle-bg: rgba(91, 188, 255, 0.92);
  --handle-border: rgba(255, 255, 255, 0.38);
  --handle-hover: rgba(155, 220, 255, 0.98);
  --section-bg: rgba(255, 255, 255, 0.03);
  --section-border: rgba(196, 215, 255, 0.14);
  --section-shadow: 0 16px 30px rgba(0, 0, 0, 0.35);
  --section-heading: rgba(235, 244, 255, 0.92);
  --coolfact-bg: rgba(255, 187, 68, 0.12);
  --coolfact-border: rgba(255, 200, 120, 0.22);
}
body {
  font-family: var(--font-ui);
  font-synthesis: none;
  text-rendering: geometricPrecision;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  color-scheme: dark;
}
#menuContainer{ position:absolute; left:0; top:15px; z-index:1000; transition:transform .3s cubic-bezier(.4,0,.2,1); transform:translateX(0)}
#menuContainer.collapsed{ transform:translateX(-100%) }
#menuToggle{ position:absolute; top:50%; right:-44px; background:linear-gradient(180deg,rgba(255,255,255,.12) 0%,rgba(255,255,255,.04) 100%); color:var(--text-color); border:1px solid var(--border-color); border-left:none; border-radius:0 16px 16px 0; width:44px; height:56px; cursor:pointer; display:flex; justify-content:center; align-items:center; transform:translateY(-50%); transition:transform .18s ease, box-shadow .18s ease, filter .18s ease; box-shadow:8px 0 22px rgba(0,0,0,.46); backdrop-filter:blur(14px) saturate(1.2) }
#menuToggle:hover{ background:linear-gradient(180deg,rgba(255,255,255,.16) 0%,rgba(255,255,255,.06) 100%); transform:translateY(-50%) translateX(2px); box-shadow:10px 0 26px rgba(0,0,0,.52) }
#menuToggle:active{ transform:translateY(-50%) translateX(1px); filter:brightness(.98) }
#menuToggle:focus-visible{ outline:2px solid rgba(91,188,255,.55); outline-offset:2px }
#menuToggle::after{ content:"\25C0"; font-size:18px; font-weight:600; font-family:var(--font-ui); transition:transform .18s ease }
#menuContainer.collapsed #menuToggle::after{ content:"\25B6"; transform:scale(1.1) }
#controls,#planetNavContainer,#moonNavContainer,#additionalControls{ position:relative; margin:0 0 12px 14px; width:252px; color:var(--text-color); font-family:var(--font-ui); background:linear-gradient(180deg,rgba(24,28,46,.82) 0%,rgba(10,12,22,.72) 100%); padding:14px 14px; border-radius:18px; font-size:.92em; border:1px solid var(--border-color); box-shadow:0 18px 40px rgba(0,0,0,.46), inset 0 1px 0 rgba(255,255,255,.06); backdrop-filter:blur(16px) saturate(1.25); transition:transform .2s ease, box-shadow .2s ease, border-color .2s ease, background .2s ease }
#controls:hover,#planetNavContainer:hover,#moonNavContainer:hover,#additionalControls:hover{ transform:translateY(-2px); box-shadow:0 22px 52px rgba(0,0,0,.56), inset 0 1px 0 rgba(255,255,255,.08); border-color:rgba(196,215,255,.28); background:linear-gradient(180deg,rgba(28,34,56,.86) 0%,rgba(10,12,22,.74) 100%) }
#controls label{ display:grid; grid-template-columns:auto 1fr auto; align-items:center; gap:12px; font-weight:500 }
#controls .control-label{ font-size:.78em; letter-spacing:.9px; text-transform:uppercase; color:var(--muted-text) }
#speedValue{ font-family:var(--font-mono); font-size:.92em; letter-spacing:.2px; padding:4px 10px; border-radius:999px; background:rgba(255,255,255,.06); border:1px solid rgba(196,215,255,.16); color:rgba(230,242,255,.92) }
#controls input[type=range]{ flex-grow:1; width:100%; height:20px; background:transparent; -webkit-appearance:none; appearance:none; cursor:pointer }
#controls input[type=range]:focus-visible{ outline:2px solid rgba(91,188,255,.55); outline-offset:4px }
#controls input[type=range]::-webkit-slider-runnable-track{ height:6px; background:var(--track-bg); border-radius:999px; box-shadow:inset 0 0 0 1px rgba(196,215,255,.18) }
#controls input[type=range]::-webkit-slider-thumb{ -webkit-appearance:none; appearance:none; width:16px; height:16px; border-radius:50%; background:var(--handle-bg); border:1px solid var(--handle-border); margin-top:-5px; box-shadow:0 10px 18px rgba(0,0,0,.4),0 0 0 6px rgba(91,188,255,.10); transition:transform .12s ease, filter .12s ease }
#controls input[type=range]:hover::-webkit-slider-thumb{ filter:brightness(1.05) }
#controls input[type=range]:active::-webkit-slider-thumb{ transform:scale(1.08); filter:brightness(1.02) }
#controls input[type=range]::-moz-range-track{ height:6px; background:var(--track-bg); border-radius:999px; border:1px solid rgba(196,215,255,.18) }
#controls input[type=range]::-moz-range-progress{ height:6px; background:rgba(91,188,255,.35); border-radius:999px }
#controls input[type=range]::-moz-range-thumb{ width:16px; height:16px; border-radius:50%; background:var(--handle-bg); border:1px solid var(--handle-border); box-shadow:0 10px 18px rgba(0,0,0,.4),0 0 0 6px rgba(91,188,255,.10); transition:transform .12s ease, filter .12s ease }
#controls input[type=range]:hover::-moz-range-thumb{ filter:brightness(1.05) }
#controls input[type=range]:active::-moz-range-thumb{ transform:scale(1.08); filter:brightness(1.02) }
#controls .speed-actions{ margin-top:12px }
#controls .speed-actions .controlBtn{ min-height:40px }
#togglePlaybackBtn[aria-pressed="true"] {
  border-color: rgba(160, 255, 205, 0.42);
  background: linear-gradient(
    180deg,
    rgba(54, 146, 120, 0.35) 0%,
    rgba(36, 100, 83, 0.18) 100%
  );
}
#togglePlaybackBtn[aria-pressed="false"] {
  border-color: rgba(255, 214, 150, 0.38);
  background: linear-gradient(
    180deg,
    rgba(136, 102, 40, 0.28) 0%,
    rgba(102, 74, 22, 0.16) 100%
  );
}
#additionalControls .btnRow{ display:flex; gap:8px }
.controlBtn{ background:linear-gradient(180deg,rgba(255,255,255,.10) 0%,rgba(255,255,255,.03) 100%); color:var(--text-color); border:1px solid var(--border-color); padding:10px 12px; border-radius:14px; cursor:pointer; text-align:center; font-size:.92em; font-weight:600; letter-spacing:.2px; transition:transform .14s ease, box-shadow .14s ease, background .14s ease, border-color .14s ease, filter .14s ease; margin:6px 0; display:block; width:100%; box-sizing:border-box; box-shadow:0 14px 30px rgba(0,0,0,.42), inset 0 1px 0 rgba(255,255,255,.08); backdrop-filter:blur(8px) saturate(1.1) }
.controlBtn:hover{ filter:brightness(1.04); border-color:rgba(196,215,255,.30); box-shadow:0 16px 34px rgba(0,0,0,.48), inset 0 1px 0 rgba(255,255,255,.10) }
.controlBtn:active{ transform:translateY(1px); filter:brightness(.99) }
.controlBtn:focus-visible{ outline:2px solid rgba(91,188,255,.55); outline-offset:2px }
.btnRow .controlBtn{ flex:1 }
#toggleScaleModeBtn {
  border-color: rgba(100, 205, 255, 0.4);
  background: linear-gradient(
    180deg,
    rgba(56, 130, 190, 0.28) 0%,
    rgba(40, 92, 147, 0.14) 100%
  );
}
#toggleScaleModeBtn[aria-pressed="true"] {
  border-color: rgba(160, 255, 205, 0.45);
  background: linear-gradient(
    180deg,
    rgba(54, 146, 120, 0.35) 0%,
    rgba(36, 100, 83, 0.18) 100%
  );
}
#toggleFocusModeBtn {
  border-color: rgba(214, 196, 255, 0.36);
  background: linear-gradient(
    180deg,
    rgba(92, 80, 157, 0.26) 0%,
    rgba(62, 52, 116, 0.14) 100%
  );
}
#toggleFocusModeBtn[aria-pressed="true"] {
  border-color: rgba(255, 222, 149, 0.45);
  background: linear-gradient(
    180deg,
    rgba(136, 102, 40, 0.34) 0%,
    rgba(102, 74, 22, 0.18) 100%
  );
}
#planetNavContainer label, #moonNavContainer label{ display:block; margin:0 0 10px; font-size:.78em; letter-spacing:.9px; text-transform:uppercase; color:var(--muted-text) }
select#planetNav, select#moonNav{ width:100%; appearance:none; -webkit-appearance:none; -moz-appearance:none; background:rgba(255,255,255,.06); color:var(--text-color); border:1px solid var(--border-color); border-radius:14px; padding:10px 38px 10px 12px; font-family:var(--font-ui); font-weight:600; letter-spacing:.2px; box-shadow:inset 0 1px 0 rgba(255,255,255,.08); background-image: linear-gradient(45deg,transparent 50%,rgba(230,242,255,.78) 50%),linear-gradient(135deg,rgba(230,242,255,.78) 50%,transparent 50%); background-position: calc(100% - 18px) 50%, calc(100% - 12px) 50%; background-size:6px 6px,6px 6px; background-repeat:no-repeat }
select#planetNav:hover, select#moonNav:hover:not(:disabled){ border-color:rgba(196,215,255,.30); background-color:rgba(255,255,255,.08) }
select#planetNav:focus-visible, select#moonNav:focus-visible{ outline:2px solid rgba(91,188,255,.55); outline-offset:2px }
select#moonNav:disabled{ opacity:0.5; cursor:not-allowed }

.btnRow {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-top: 4px;
}
.btnRow .controlBtn {
  flex: 1;
  margin: 0;
} /* Override margin for row buttons */

#additionalControls label {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 10px;
  border-radius: 12px;
  font-weight: 500;
  color: rgba(220, 229, 255, 0.85);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(154, 180, 235, 0.18);
  transition: all 0.25s ease;
}
#additionalControls label:hover {
  border-color: rgba(170, 200, 255, 0.35);
  background: rgba(160, 190, 255, 0.08);
}
#additionalControls label input[type="checkbox"] {
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 6px;
  border: 1.5px solid rgba(160, 190, 255, 0.5);
  background: rgba(30, 40, 76, 0.6);
  position: relative;
  transition: all 0.2s ease;
}
#additionalControls label input[type="checkbox"]:focus-visible {
  outline: 2px solid rgba(150, 190, 255, 0.5);
  outline-offset: 2px;
}
#additionalControls label input[type="checkbox"]:checked {
  background: linear-gradient(145deg, #4a4a4a 0%, #2a2a2a 100%);
  border-color: rgba(255, 255, 255, 0.4);
  box-shadow: 0 0 6px rgba(255, 255, 255, 0.2);
}
#additionalControls label input[type="checkbox"]:checked::after {
  content: "";
  position: absolute;
  left: 4px;
  top: 1px;
  width: 6px;
  height: 10px;
  border: solid #ffffff;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

/* ---- Info card ---- */
#info {
  position: absolute;
  width: 480px;
  max-height: 72vh;
  overflow-y: auto;
  z-index: 1500;
  color: var(--text-color);
  font-family: var(--font-ui);
  padding: 28px 30px;
  border-radius: 22px;
  display: none;
  transform: translateY(14px) scale(0.94);
  opacity: 0;
  transition:
    transform 0.45s cubic-bezier(0.16, 1, 0.3, 1),
    opacity 0.3s ease;
  background: linear-gradient(155deg, rgba(22, 26, 48, 0.92), rgba(12, 15, 28, 0.88));
  box-shadow:
    -10px 24px 48px rgba(5, 7, 21, 0.65),
    0 18px 36px rgba(6, 10, 24, 0.45);
  border: none;
  backdrop-filter: blur(24px);
  pointer-events: auto;
  overscroll-behavior: contain;
  scrollbar-gutter: stable;
}

#info.show {
  transform: translateY(0) scale(1);
  opacity: 1;
}

#info::before,
#info::after {
  display: none;
}

.info-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin-bottom: 22px;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

#info-title {
  margin: 0;
  font-size: 1.6em;
  font-weight: 600;
  letter-spacing: 0.4px;
  color: #ffffff;
  text-shadow: 0 10px 22px rgba(0, 0, 0, 0.6);
}

.info-type-badge {
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 0.82em;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  background: rgba(115, 164, 255, 0.14);
  color: #8ab6ff;
  border: 1px solid rgba(115, 164, 255, 0.35);
  box-shadow: inset 0 0 0 0.5px rgba(255, 255, 255, 0.08);
}

.info-type-badge.star {
  background: rgba(255, 215, 0, 0.18);
  color: #ffd15c;
  border-color: rgba(255, 215, 0, 0.34);
}

.info-type-badge.planet {
  background: rgba(98, 255, 196, 0.1);
  color: #62ffc4;
  border-color: rgba(98, 255, 196, 0.34);
}

.info-type-badge.moon {
  background: rgba(172, 193, 255, 0.12);
  color: #b8c9ff;
  border-color: rgba(172, 193, 255, 0.32);
}

.info-quick-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 28px;
}

.quick-stat {
  text-align: center;
  padding: 14px 10px;
  border-radius: 14px;
  background: linear-gradient(155deg, rgba(102, 127, 255, 0.18), rgba(43, 77, 205, 0.12));
  border: 1px solid rgba(120, 150, 255, 0.25);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.08),
    0 10px 24px rgba(6, 12, 40, 0.35);
  color: var(--muted-text);
}

.stat-label {
  font-size: 0.78em;
  color: rgba(226, 233, 255, 0.75);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.6px;
}

.stat-value {
  font-size: 1.05em;
  font-weight: 600;
  color: #c6dcff;
  font-family: "JetBrains Mono", "Courier New", monospace;
}

.info-section {
  position: relative;
  margin-bottom: 22px;
  padding: 18px 18px 20px;
  background: var(--section-bg);
  border-radius: 18px;
  border: 1px solid var(--section-border);
  box-shadow: var(--section-shadow);
  overflow: hidden;
  overscroll-behavior: contain;
}

.info-section::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(120deg, rgba(118, 193, 255, 0.12), rgba(118, 193, 255, 0));
  opacity: 0.5;
  pointer-events: none;
}

.info-section h4 {
  margin: 0 0 14px 0;
  font-size: 1.05em;
  font-weight: 600;
  color: var(--section-heading);
  letter-spacing: 0.4px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.info-content {
  color: var(--muted-text);
  line-height: 1.55;
}

.info-content p {
  margin: 9px 0;
  font-size: 0.95em;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 18px;
  letter-spacing: 0.1px;
}

.info-content p strong {
  color: rgba(149, 199, 255, 0.95);
  font-weight: 600;
  min-width: 140px;
  text-transform: uppercase;
  font-size: 0.82em;
  letter-spacing: 0.6px;
}

.cool-facts {
  background: var(--coolfact-bg);
  padding: 16px 18px;
  border-radius: 14px;
  border: 1px solid var(--coolfact-border);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.2),
    0 12px 24px rgba(129, 86, 0, 0.25);
}

.cool-facts p {
  position: relative;
  margin: 10px 0;
  padding-left: 16px;
  font-style: italic;
  color: #ffe8a6;
  display: block !important;
  text-align: left;
  letter-spacing: 0.2px;
}

.cool-facts p::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: rgba(255, 230, 140, 0.95);
  box-shadow: 0 0 12px rgba(255, 220, 124, 0.8);
  transform: translateY(-50%);
}
#info hr {
  border-color: rgba(255, 255, 255, 0.12);
  margin: 12px 0;
}

/* ---- Scrollbar (for #info) ---- */
#info::-webkit-scrollbar {
  width: 10px;
}
#info::-webkit-scrollbar-track {
  background: var(--track-bg);
  border-radius: 0 8px 8px 0;
}
#info::-webkit-scrollbar-thumb {
  background: var(--handle-bg);
  border-radius: 5px;
  border: 1px solid var(--border-color);
}
#info::-webkit-scrollbar-thumb:hover {
  background: var(--handle-hover);
}
/* Basic Firefox scrollbar styling */
#info {
  scrollbar-width: thin;
  scrollbar-color: var(--handle-bg) var(--track-bg);
}

#simMetadata {
  position: absolute;
  top: 12px;
  right: 12px;
  z-index: 1500;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
  max-width: min(92vw, 560px);
  pointer-events: none;
}
.meta-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text-color);
  font-family: var(--font-mono);
  background: rgba(12, 16, 28, 0.58);
  padding: 7px 11px;
  border-radius: 999px;
  border: 1px solid rgba(196, 215, 255, 0.2);
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(14px) saturate(1.25);
  letter-spacing: 0.2px;
  max-width: min(92vw, 520px);
  white-space: nowrap;
  pointer-events: auto;
}
.meta-label {
  font-size: 10px;
  color: rgba(214, 228, 255, 0.72);
  text-transform: uppercase;
}
.meta-value {
  font-size: 12px;
  color: rgba(240, 246, 255, 0.96);
}
.meta-pill-strong {
  font-weight: 600;
  letter-spacing: 0.28px;
  border-color: rgba(196, 215, 255, 0.24);
}
#dayCounter,
#scaleIndicator {
  position: static;
  right: auto;
  z-index: auto;
  margin: 0;
}
#scaleIndicator[data-scale-mode="enhanced"] {
  border-color: rgba(91, 188, 255, 0.32);
  color: rgba(210, 239, 255, 0.96);
}
#scaleIndicator[data-scale-mode="relative"] {
  border-color: rgba(159, 255, 195, 0.34);
  color: rgba(201, 255, 225, 0.96);
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 900;
  opacity: 0;
  transition: opacity 0.35s ease;
  background:
    radial-gradient(circle at 50% 46%, rgba(3, 6, 12, 0) 32%, rgba(3, 6, 12, 0.58) 100%),
    linear-gradient(180deg, rgba(0, 0, 0, 0.06), rgba(0, 0, 0, 0.24));
}
body.focus-mode::after {
  opacity: 1;
}
body.focus-mode #controls,
body.focus-mode #planetNavContainer,
body.focus-mode #moonNavContainer,
body.focus-mode #datePickerContainer,
body.focus-mode #additionalControls,
body.focus-mode #simMetadata,
body.focus-mode #dayCounter,
body.focus-mode #scaleIndicator,
body.focus-mode .planet-label {
  opacity: 0.72;
}
body.focus-mode .planet-label-line {
  opacity: 0.28 !important;
}
body.focus-mode #info {
  border: 1px solid rgba(189, 225, 255, 0.22);
  box-shadow:
    -10px 26px 56px rgba(4, 6, 18, 0.72),
    0 20px 42px rgba(5, 8, 20, 0.52);
}

.planet-label-layer {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1190;
  overflow: visible;
}

.planet-label-line {
  display: block;
  fill: none;
  stroke: rgba(196, 220, 255, 0.5);
  stroke-width: 1.2;
  stroke-linecap: round;
  stroke-dasharray: 3 5;
  filter: drop-shadow(0 0 8px rgba(91, 188, 255, 0.28));
  transition: opacity 0.2s ease;
}

.planet-label {
  position: absolute;
  color: rgba(240, 246, 255, 0.95);
  font-family: var(--font-ui);
  font-size: 14px;
  font-weight: 600;
  pointer-events: auto;
  z-index: 1200;
  text-shadow:
    0 12px 26px rgba(0, 0, 0, 0.55),
    0 0 12px rgba(91, 188, 255, 0.22);
  transition:
    opacity 0.2s ease,
    transform 0.2s ease,
    background 0.2s ease,
    border-color 0.2s ease;
  white-space: nowrap;
  letter-spacing: 0.6px;
  cursor: pointer;
  transform-origin: center center;
  background: rgba(12, 16, 28, 0.55);
  backdrop-filter: blur(10px) saturate(1.2);
  border-radius: 12px;
  border: 1px solid rgba(196, 215, 255, 0.16);
  padding: 4px 8px;
}

.planet-label:hover {
  transform: scale(1.1) translateY(-2px);
  background: rgba(0, 0, 0, 0.9);
  text-shadow:
    0 0 15px rgba(255, 255, 255, 0.8),
    2px 2px 4px rgba(0, 0, 0, 0.9),
    0 0 25px rgba(255, 255, 255, 0.5);
}

.planet-label.sun {
  color: #ffd700;
  text-shadow:
    0 0 15px rgba(255, 215, 0, 0.8),
    2px 2px 4px rgba(0, 0, 0, 0.9),
    0 0 30px rgba(255, 215, 0, 0.6);
  font-size: 16px;
  background: rgba(255, 215, 0, 0.2);
}

.planet-label.sun:hover {
  background: rgba(255, 215, 0, 0.3);
}

.planet-label.moon {
  color: #cccccc;
  font-size: 11px;
  font-weight: 500;
  display: inline-flex;
  background: rgba(204, 204, 204, 0.1);
  text-shadow:
    0 0 8px rgba(204, 204, 204, 0.4),
    1px 1px 3px rgba(0, 0, 0, 0.8);
}

/* Extended info panel on hover */
.planet-label-extended {
  position: absolute;
  background: rgba(0, 0, 0, 0.9);
  color: #ffffff;
  padding: 12px 16px;
  border-radius: 8px;
  font-size: 12px;
  font-weight: 400;
  backdrop-filter: blur(10px);
  opacity: 0;
  pointer-events: none;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 1001;
  min-width: 180px;
  line-height: 1.5;
  transform: translateY(10px);
}

.planet-label:hover .planet-label-extended {
  opacity: 1;
  transform: translateY(0);
}

/* Planet-specific label colors */
.planet-label[data-planet="Mercury"] {
  background: rgba(166, 166, 166, 0.15);
}

.planet-label[data-planet="Venus"] {
  background: rgba(255, 165, 0, 0.15);
}

.planet-label[data-planet="Earth"] {
  background: rgba(100, 149, 237, 0.15);
}

.planet-label[data-planet="Mars"] {
  background: rgba(205, 92, 92, 0.15);
}

.planet-label[data-planet="Jupiter"] {
  background: rgba(255, 140, 0, 0.15);
}

.planet-label[data-planet="Saturn"] {
  background: rgba(218, 165, 32, 0.15);
}

.planet-label[data-planet="Uranus"] {
  background: rgba(64, 224, 208, 0.15);
}

.planet-label[data-planet="Neptune"] {
  background: rgba(30, 144, 255, 0.15);
}

/* ---- Loading Screen ---- */
#loadingScreen {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 2000;
  background: rgba(0, 0, 0, 0.8);
  color: #fff;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 24px;
  font-family: Arial, sans-serif;
  opacity: 1;
}

/* ---- Error Overlay ---- */
#errorOverlay {
  position: fixed;
  top: 10px;
  left: 10px;
  right: 10px;
  z-index: 2001;
  background: rgba(200, 0, 0, 0.9);
  color: #fff;
  padding: 15px;
  border: 1px solid darkred;
  border-radius: 5px;
  font-family: Arial, sans-serif;
  font-size: 16px;
  text-align: center;
  display: none;
}
/* ---- Date Picker ---- */
#datePickerContainer {
  position: relative;
  margin: 0 0 12px 14px;
  width: 252px;
  color: var(--text-color);
  font-family: var(--font-ui);
  background: linear-gradient(180deg, rgba(24, 28, 46, 0.82) 0%, rgba(10, 12, 22, 0.72) 100%);
  padding: 14px;
  border-radius: 18px;
  font-size: 0.92em;
  border: 1px solid var(--border-color);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.46), inset 0 1px 0 rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(16px) saturate(1.25);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}
#datePickerContainer:hover {
  transform: translateY(-2px);
  box-shadow: 0 22px 52px rgba(0, 0, 0, 0.56), inset 0 1px 0 rgba(255, 255, 255, 0.08);
  border-color: rgba(196, 215, 255, 0.28);
}
#datePickerContainer label {
  display: block;
  margin: 0 0 10px;
  font-size: 0.78em;
  letter-spacing: 0.9px;
  text-transform: uppercase;
  color: var(--muted-text);
}
#datePicker {
  width: 100%;
  appearance: none;
  -webkit-appearance: none;
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-color);
  border: 1px solid var(--border-color);
  border-radius: 14px;
  padding: 10px 12px;
  font-family: var(--font-mono);
  font-size: 0.92em;
  font-weight: 500;
  box-sizing: border-box;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08);
  color-scheme: dark;
}
#datePicker:hover {
  border-color: rgba(196, 215, 255, 0.30);
  background: rgba(255, 255, 255, 0.08);
}
#datePicker:focus-visible {
  outline: 2px solid rgba(91, 188, 255, 0.55);
  outline-offset: 2px;
}

/* ---- Keyboard Shortcuts Help ---- */
.shortcuts-help {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 2500;
  background: linear-gradient(155deg, rgba(22, 26, 48, 0.95), rgba(12, 15, 28, 0.92));
  border: 1px solid var(--border-color);
  border-radius: 22px;
  padding: 28px 32px;
  min-width: 320px;
  max-width: 420px;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(24px) saturate(1.2);
  font-family: var(--font-ui);
  color: var(--text-color);
  display: none;
}
.shortcuts-help h4 {
  margin: 0 0 18px;
  font-size: 1.15em;
  font-weight: 600;
  letter-spacing: 0.4px;
  color: #fff;
  text-align: center;
}
.shortcuts-grid {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 10px 20px;
  align-items: center;
}
.shortcuts-grid kbd {
  display: inline-block;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(196, 215, 255, 0.25);
  border-radius: 8px;
  padding: 4px 10px;
  font-family: var(--font-mono);
  font-size: 0.85em;
  font-weight: 600;
  color: var(--highlight-color);
  text-align: center;
  min-width: 32px;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
}
.shortcuts-grid span {
  color: var(--muted-text);
  font-size: 0.92em;
}

/* Mobile responsiveness additions */
@media (max-width: 768px) {
  #menuToggle { width: 56px; height: 56px; right: -56px; }
  #menuContainer {
    padding-left: env(safe-area-inset-left, 0);
    padding-bottom: calc(12px + env(safe-area-inset-bottom, 0));
    max-height: calc(100dvh - 24px);
    overflow-y: auto;
    overscroll-behavior: contain;
    -webkit-overflow-scrolling: touch;
  }
  #controls, #planetNavContainer, #moonNavContainer, #datePickerContainer, #additionalControls { width: min(90vw, 420px); margin: 0 0 12px 12px; font-size: 1em; }
  .controlBtn { padding: 14px 16px; font-size: 1em; min-height: 44px; }
  select#planetNav, select#moonNav { min-height: 44px; }
  #controls input[type=range] { height: 28px; }
  #controls input[type=range]::-webkit-slider-thumb { width: 24px; height: 24px; margin-top: -9px; }
  #controls input[type=range]::-moz-range-thumb { width: 24px; height: 24px; }
  #additionalControls label { padding: 12px; }
  #additionalControls label input[type="checkbox"] { width: 22px; height: 22px; }
  #simMetadata {
    top: calc(10px + env(safe-area-inset-top, 0));
    right: 10px;
    max-width: calc(100vw - 20px);
    gap: 6px;
  }
  .meta-pill {
    padding: 6px 10px;
    max-width: calc(100vw - 20px);
    text-overflow: ellipsis;
    overflow: hidden;
  }
  #info { position: fixed; left: 12px; right: 12px; top: auto; bottom: calc(12px + env(safe-area-inset-bottom, 0)); width: auto; max-height: 60dvh; overflow: auto; margin-right: env(safe-area-inset-right, 0); }
  .info-quick-stats { grid-template-columns: repeat(2, 1fr); }
  .planet-label { font-size: 16px; padding: 6px 10px; }
  body.focus-mode::after {
    opacity: 0.45;
  }
  body.focus-mode #controls,
  body.focus-mode #planetNavContainer,
  body.focus-mode #moonNavContainer,
  body.focus-mode #datePickerContainer,
  body.focus-mode #additionalControls,
  body.focus-mode #simMetadata,
  body.focus-mode #dayCounter,
  body.focus-mode #scaleIndicator,
  body.focus-mode .planet-label {
    opacity: 0.86;
  }
  #menuContainer:not(.collapsed) ~ .planet-label,
  #menuContainer:not(.collapsed) ~ .planet-label-extended,
  #menuContainer:not(.collapsed) ~ .planet-label-layer {
    opacity: 0;
    pointer-events: none;
  }
}
@media (hover: none) {
  .planet-label-extended { display: none !important; }
}