html, body { margin: 0; height: 100%; overflow-x: hidden; overflow-y: auto; background:#020712; color:#eee; }
    .collapsible {
      padding: 0;
    }
    .section-header {
      display: flex;
      align-items: center;
      justify-content: flex-start;
      gap: 6px;
      padding: 10px 10px 8px;
      cursor: pointer;
      user-select: none;
    }
    .section-header span {
      font-size: 13px;
      color: #9dc5ff;
    }
    .section-header .chevron {
      font-size: 12px;
      color: #cfdcff;
      order: -1;
    }
    .section-body {
      padding: 0 10px 10px;
    }
    .collapsed .section-body { display: none; }
    .collapsed .chevron { transform: rotate(-90deg); }
    .segment-group button.active {
      background: #2a89ff;
      color: #fff;
    }
    .floating-btn {
      position: fixed;
      z-index: 30;
      padding: 6px 10px;
      background: rgba(0,0,0,0.7);
      border: 1px solid #2a89ff;
      color: #e6e6e6;
      border-radius: 8px;
      font-family: Arial, sans-serif;
      font-size: 12px;
      cursor: pointer;
      white-space: nowrap;
      max-width: 140px;
      text-align: center;
    }
    #langSwitcher {
      position: fixed;
      left: 50%;
      transform: translateX(-50%);
      top: 8px;
      z-index: 65;
      padding: 6px 10px;
      background: rgba(0,0,0,0.7);
      border: 1px solid #2a89ff;
      border-radius: 8px;
      font-family: Arial, sans-serif;
      font-size: 12px;
      color: #cfdcff;
      white-space: nowrap;
    }
    #langSwitcher a {
      color: #9dc5ff;
      text-decoration: none;
      font-weight: 600;
    }
    #langSwitcher a.active {
      color: #fff;
      cursor: default;
      text-decoration: none;
    }
    #langSwitcher a:hover { text-decoration: underline; }
    #toggleInfoBtn { left: 12px; top: 12px; }
    #toggleControlsBtn { right: 12px; bottom: 12px; }
    @media (min-width: 901px) {
      #toggleControlsBtn { right: 12px; top: 12px; bottom: auto; }
    }
    @media (max-width: 900px) {
      #sidePanels {
        position: fixed;
        left: 8px;
        right: 8px;
        bottom: 8px;
        top: auto;
        width: auto;
        max-height: 50vh;
        overflow-y: auto;
        gap: 8px;
        pointer-events: auto;
      }
      #controls, #dataPanel {
        width: 100%;
      }
      #desktopHint { display: none; }
    }
    #infoPanel {
      position: absolute;
      left: 12px;
      top: 44px;
      width: 340px;
      box-sizing: border-box;
      background: rgba(0,0,0,0.6);
      padding: 10px 12px;
      border: 1px solid #2a89ff;
      border-radius: 8px;
      font-family: Arial, sans-serif;
      font-size: 13px;
      color: #e6e6e6;
      line-height: 1.5;
    }
    #infoPanel h2 {
      margin: 0 0 6px;
      font-size: 15px;
      color: #9dc5ff;
    }
    #infoPanel ul {
      margin: 6px 0 0 16px;
      padding: 0;
    }
    #infoPanel li { margin-bottom: 4px; }
    html[dir="rtl"] #infoPanel ul {
      margin: 6px 0 0 0;
      padding-right: 16px;
      padding-left: 0;
      list-style-position: inside;
    }
    #faq {
      margin-top: 10px;
      font-size: 12px;
      color: #e6e6e6;
      line-height: 1.45;
    }
    #faq .q { font-weight: bold; color: #cfe2ff; }
    #faq .a { margin-left: 6px; color: #cfdcff; }
    #dataPanel {
      background: rgba(0,0,0,0.6);
      padding: 10px 12px;
      border: 1px solid #2a89ff;
      border-radius: 8px;
      font-family: Arial, sans-serif;
      font-size: 13px;
      color: #e6e6e6;
      line-height: 1.5;
      width: 100%;
      box-sizing: border-box;
    }
    #dataPanel h3 {
      margin: 0 0 6px;
      font-size: 14px;
      color: #9dc5ff;
    }
    footer {
      position: fixed;
      left: 12px;
      bottom: 52px;
      padding: 8px 10px;
      background: rgba(0,0,0,0.8);
      border: 1px solid #2a89ff;
      border-radius: 8px;
      font-family: Arial, sans-serif;
      font-size: 12px;
      color: #cfdcff;
      box-shadow: 0 8px 24px rgba(0,0,0,0.35);
      display: none;
      z-index: 40;
      max-width: 280px;
    }
    footer.show { display: block; }
    #creditsToggle {
      position: fixed;
      left: 12px;
      bottom: 12px;
      padding: 7px 12px;
      background: rgba(0,0,0,0.8);
      border: 1px solid #2a89ff;
      border-radius: 20px;
      font-family: Arial, sans-serif;
      font-size: 12px;
      color: #cfdcff;
      cursor: pointer;
      z-index: 42;
      display: block;
      box-shadow: 0 6px 14px rgba(0,0,0,0.25);
    }
    footer a {
      color: #8fb5ff;
      text-decoration: none;
    }
    footer a:hover { text-decoration: underline; }
    #tourPanel {
      position: fixed;
      left: 12px;
      top: 64px;
      width: 374px;
      max-width: calc(100vw - 24px);
      box-sizing: border-box;
      background: rgba(4,9,18,0.9);
      border: 1px solid #2a89ff;
      border-radius: 10px;
      padding: 12px 14px;
      font-family: Arial, sans-serif;
      font-size: 13px;
      color: #e6e6e6;
      display: block;
      z-index: 15;
      box-shadow: 0 8px 24px rgba(0,0,0,0.5);
    }
    #tourPanel .tour-title {
      font-size: 14px;
      font-weight: bold;
      margin-bottom: 6px;
      color: #cfe2ff;
    }
    #tourPanel .tour-body {
      line-height: 1.45;
      margin-bottom: 6px;
    }
    .seo-blurb-ar{padding:10px 12px;color:#cfdcff;font-size:13px;line-height:1.6;direction:rtl;text-align:right}
    .faq-ar{padding:10px 12px;color:#cfdcff;font-size:13px;line-height:1.6;direction:rtl;text-align:right}
    .sr-only{position:absolute;left:-9999px;top:auto;width:1px;height:1px;overflow:hidden}
    .seo-blurb-ar{padding:10px 12px;color:#cfdcff;font-size:13px;line-height:1.6;direction:rtl;text-align:right}
    #sky3dContainer {
      width: 100%;
      height: 360px;
      background: #0b1222;
      border: 1px solid #2a89ff;
      border-radius: 8px;
      overflow: hidden;
      position: relative;
      box-sizing: border-box;
    }
    #skyHint {
      position: absolute;
      inset: 0;
      display: flex;
      align-items: center;
      justify-content: center;
      text-align: center;
      padding: 10px;
      font-size: 12px;
      color: #cfdcff;
      background: rgba(11, 18, 34, 0.65);
      pointer-events: none;
      z-index: 2;
    }
    #skySunWarning {
      position: absolute;
      top: 8px;
      left: 8px;
      padding: 4px 8px;
      border-radius: 999px;
      background: rgba(255, 190, 80, 0.2);
      border: 1px solid rgba(255, 190, 80, 0.6);
      color: #ffd9a6;
      font-size: 11px;
      letter-spacing: 0.2px;
      display: none;
      z-index: 2;
      pointer-events: none;
    }
    #sky3dContainer.sun-visible {
      box-shadow: inset 0 0 30px rgba(255, 170, 80, 0.35);
    }
    .planets-page #sky3dContainer { height: 360px; }
@media (min-width: 901px) {
      .venus-page #tourPanel { width: 440px; }
      .venus-page #infoPanel { width: 440px; }
      .planets-page #tourPanel { width: 440px; }
      .planets-page #sidePanels { width: 360px; }
    }
    #orbitCanvas {
      box-sizing: border-box;
      width: 100% !important;
      max-width: 100%;
      height: auto !important;
      display: block;
    }
    #venusReadout, #planetsReadout {
      margin-top: 6px;
      font-size: 13px;
      color: #cfe2ff;
      line-height: 1.5;
    }
    #skyView {
      font-size: 12px;
      line-height: 1.4;
      margin-top: 6px;
      color: #cfdcff;
    }
    @media (max-width: 900px) {
      html, body { overflow-y: auto; }
      #toggleControlsBtn, #toggleInfoBtn { display: none; }
      body {
        display: flex;
        flex-direction: column;
        align-items: stretch;
      }
      #scene { order: 1; width: 100%; height: 60vh; min-height: 280px; position: relative; margin: 0 auto; }
      #sidePanels { order: 2; }
      #tourPanel { order: 3; }
      #infoPanel { order: 4; }
      footer { order: 5; }
      #tourPanel, #infoPanel, #sidePanels, footer {
        position: static;
        width: calc(100% - 16px);
        max-width: calc(100% - 16px);
        margin: 8px;
        left: auto;
        top: auto;
      }
      #tourPanel { max-width: calc(100% - 16px); width: calc(100% - 16px); }
      #sidePanels { display: block; max-height: none; overflow: visible; }
      #controls, #dataPanel { width: 100%; }
      #sky3dContainer { height: 116px; }
      .planets-page #sky3dContainer { height: 240px; }
    }
    /* Tour button removed; inset is always shown */