:root{
  --panel: rgba(12, 12, 14, .78);
  --panel2: rgba(12, 12, 14, .62);
  --text: #f3f4f6;
  --muted: rgba(243,244,246,.75);
  --line: rgba(255,255,255,.12);
  --shadow: 0 10px 30px rgba(0,0,0,.35);
  --radius: 18px;

  /* Atmosphere lighting controls */
  --scene-brightness: 1;
  --scene-dim: 0.72;
}

*{ box-sizing:border-box; }
html, body{ height:100%; }
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, "Apple Color Emoji","Segoe UI Emoji";
  color: var(--text);
  overflow-x:hidden;
}

/* Background */
#bgA,
#bgB{
  position:fixed; inset:0;
  background-size:cover;
  background-position:center;
  background-repeat:no-repeat;
  transform: scale(1.02);
  transition: opacity .45s ease, filter .2s ease;
  filter: brightness(var(--scene-brightness));
}
#bgA{ z-index:-4; opacity: 1; }
#bgB{ z-index:-3; opacity: 0; }
#bgVideo{
  position:fixed; inset:0;
  width:100%; height:100%;
  object-fit:cover;
  z-index:-5;
  display:none;
  filter: brightness(var(--scene-brightness));
  transition: filter .2s ease;
}
.bgOverlay{
  position:fixed; inset:0;
  background:
    radial-gradient(ellipse at top, rgba(0,0,0,.30), rgba(0,0,0,.80)),
    linear-gradient(to bottom, rgba(0,0,0,.25), rgba(0,0,0,.65));
  z-index:-2;
  opacity: var(--scene-dim);
  transition: opacity .2s ease;
}

/* Top bar */
.topbar{
  position:sticky; top:0;
  display:flex; gap:16px;
  align-items:center;
  justify-content:space-between;
  padding:14px 18px;
  border-bottom:1px solid var(--line);
  background: rgba(0,0,0,.35);
  backdrop-filter: blur(10px);
}

.brand__title{ font-weight:800; letter-spacing:.3px; }
.brand__subtitle{ color:var(--muted); font-size:13px; margin-top:2px; }

.tabs{ display:flex; gap:8px; }
.tab{
  border:1px solid var(--line);
  background: rgba(0,0,0,.25);
  color: var(--text);
  padding:9px 12px;
  border-radius: 999px;
  cursor:pointer;
}
.tab.is-active{
  background: rgba(255,255,255,.10);
  border-color: rgba(255,255,255,.22);
}

.actions{ display:flex; gap:10px; }
.btn{
  border:1px solid var(--line);
  background: rgba(0,0,0,.25);
  color: var(--text);
  padding:9px 12px;
  border-radius: 999px;
  cursor:pointer;
}
.btn:hover, .tab:hover{ background: rgba(255,255,255,.08); }

.main{
  padding: 18px;
  max-width: 1200px;
  margin: 0 auto;
}

.panel{
  display:none;
  background: var(--panel2);
  border:1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow:hidden;
}
.panel.is-active{ display:block; }

.panelHeader{
  padding: 16px 18px;
  border-bottom: 1px solid var(--line);
  background: rgba(0,0,0,.18);
}
.panelHeaderRow{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 12px;
}
.panelHeader h1{ margin:0 0 6px 0; font-size: 22px; }
.panelHeader p{ margin:0; color: var(--muted); }

/* When a section is toggled to "Hide", keep only the header bar */
.panel.is-overlay-hidden .panelHeader{
  padding: 12px 18px;
}
.panel.is-overlay-hidden .panelHeader h1{
  margin:0;
  font-size: 18px;
}
.panel.is-overlay-hidden .panelHeader p{
  display:none;
}

.panel.is-hidden{ display:none !important; }

/* Gallery grid */
.grid{
  padding: 14px;
  display:grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 12px;
}
.thumb{
  border-radius: 14px;
  overflow:hidden;
  border:1px solid var(--line);
  background: rgba(0,0,0,.25);
  cursor:pointer;
  position:relative;
  min-height: 150px;
}
.thumb img{
  width:100%;
  height: 170px;
  object-fit: cover;
  display:block;
}
.thumb .cap{
  padding: 10px 10px 12px 10px;
  color: var(--muted);
  font-size: 12px;
  border-top: 1px solid rgba(255,255,255,.08);
  background: rgba(0,0,0,.25);
  word-break: break-word;
}

/* Atmosphere cards */
.cards{
  display:grid;
  grid-template-columns: 1fr;
  gap: 12px;
  padding: 14px;
}
@media (min-width: 900px){
  .cards{ grid-template-columns: 1fr 1fr; }
}
.card{
  background: var(--panel);
  border:1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px;
}
.card h2{
  margin: 0 0 10px 0;
  font-size: 16px;
}
.row{
  display:flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items:center;
  margin: 10px 0;
}
.hint{
  margin: 10px 0 0 0;
  color: var(--muted);
  font-size: 12px;
}

.bgPicker{
  display:grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 10px;
  margin-top: 10px;
}
.bgOption{
  border:1px solid var(--line);
  border-radius: 14px;
  overflow:hidden;
  cursor:pointer;
  background: rgba(0,0,0,.25);
}
.bgOption img{
  width:100%;
  height: 90px;
  object-fit:cover;
  display:block;
}
.bgOption .label{
  padding: 8px 10px;
  font-size: 12px;
  color: var(--muted);
  border-top: 1px solid rgba(255,255,255,.08);
}

.videoControls{
  margin-top: 10px;
  border-top: 1px dashed rgba(255,255,255,.16);
  padding-top: 10px;
}

.fileBtn{
  border:1px solid var(--line);
  background: rgba(0,0,0,.25);
  color: var(--text);
  padding:9px 12px;
  border-radius: 999px;
  cursor:pointer;
}
.fileBtn input{ display:none; }

.slider{
  width: 180px;
}
.volLabel{
  color: var(--muted);
  font-size: 13px;
}

/* Switch */
.switch{
  display:flex;
  align-items:center;
  gap:10px;
  user-select:none;
}
.switch--compact{ gap:8px; }
.switch--compact .switch__label{ font-size: 12px; color: rgba(243,244,246,.82); }
.switch--compact .switch__ui{ width:40px; height:24px; }
.switch--compact .switch__ui::after{ width:18px; height:18px; }
.switch--compact input:checked + .switch__ui::after{ transform: translateX(16px); }
.switch input{ display:none; }
.switch__ui{
  width:44px; height:26px;
  border-radius: 999px;
  border:1px solid var(--line);
  background: rgba(0,0,0,.25);
  position:relative;
  display:inline-block;
}
.switch__ui::after{
  content:"";
  width:20px; height:20px;
  border-radius: 999px;
  background: rgba(255,255,255,.85);
  position:absolute;
  top:2px; left:2px;
  transition: transform .18s ease;
}
.switch input:checked + .switch__ui::after{
  transform: translateX(18px);
}
.switch__label{ color: var(--muted); font-size: 13px; }

/* Lightbox */
.lightbox{
  position:fixed; inset:0;
  background: rgba(0,0,0,.85);
  display:none;
  align-items:center;
  justify-content:center;
  z-index: 999;
  padding: 18px;
}
.lightbox.is-open{ display:flex; }
.lbFigure{
  margin:0;
  max-width: min(1100px, 92vw);
  max-height: 84vh;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap: 10px;
}
.lbFigure img{
  max-width: 100%;
  max-height: 76vh;
  border-radius: 18px;
  border: 1px solid rgba(255,255,255,.18);
  box-shadow: var(--shadow);
}
#lbCaption{
  color: rgba(255,255,255,.78);
  font-size: 13px;
  text-align:center;
  word-break: break-word;
}

.lbClose{
  position:fixed;
  top: 14px; right: 16px;
  width:44px; height:44px;
  border-radius: 999px;
  border:1px solid rgba(255,255,255,.20);
  background: rgba(0,0,0,.35);
  color: white;
  font-size: 26px;
  cursor:pointer;
}

.lbNav{
  position:fixed;
  top: 50%;
  transform: translateY(-50%);
  width:54px; height:54px;
  border-radius: 999px;
  border:1px solid rgba(255,255,255,.20);
  background: rgba(0,0,0,.35);
  color:white;
  font-size: 34px;
  cursor:pointer;
}
.lbPrev{ left: 14px; }
.lbNext{ right: 14px; }

.footer{
  padding: 14px 18px 22px 18px;
  color: rgba(255,255,255,.55);
  font-size: 12px;
  text-align:center;
}

.showPanel{
  position: fixed;
  right: 16px;
  bottom: 16px;
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.20);
  background: rgba(0,0,0,.28);
  color: rgba(255,255,255,.92);
  cursor: pointer;
  backdrop-filter: blur(10px);
  box-shadow: 0 10px 30px rgba(0,0,0,.28);
}
.showPanel:hover{ background: rgba(255,255,255,.08); }

/* Atmosphere fullscreen "scene mode": UI can fade away */
body.is-scene #topbar,
body.is-scene #panelAtmosphere .panelHeader,
body.is-scene #panelAtmosphere .cards,
body.is-scene #footer{
  transition: opacity .35s ease;
}

body.is-scene.ui-hidden #topbar,
body.is-scene.ui-hidden #panelAtmosphere .panelHeader,
body.is-scene.ui-hidden #panelAtmosphere .cards,
body.is-scene.ui-hidden #footer{
  opacity: 0;
  pointer-events: none;
}

/* Keep the panel itself visible in scene mode */
body.is-scene #main{ transition: opacity .35s ease; }

/* Mini controls shown in Atmosphere fullscreen */
.musicMini{
  position: fixed;
  left: 16px;
  bottom: 16px;
  width: 56px;
  height: 56px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.22);
  background: rgba(0,0,0,.18);
  color: rgba(255,255,255,.92);
  display:none;
  align-items:center;
  justify-content:center;
  cursor:pointer;
  backdrop-filter: blur(8px);
  box-shadow: 0 10px 30px rgba(0,0,0,.28);
}
.musicMini:hover{
  background: rgba(255,255,255,.08);
}
.musicMini__icon{
  font-size: 20px;
  transform: translateX(1px);
}
body.is-scene .musicMini{ display:flex; }

.uiMini{
  position: fixed;
  right: 16px;
  bottom: 16px;
  width: 56px;
  height: 56px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.22);
  background: rgba(0,0,0,.18);
  color: rgba(255,255,255,.92);
  display:none;
  align-items:center;
  justify-content:center;
  cursor:pointer;
  backdrop-filter: blur(8px);
  box-shadow: 0 10px 30px rgba(0,0,0,.28);
}
.uiMini:hover{ background: rgba(255,255,255,.08); }
.uiMini__icon{ font-size: 18px; }
body.is-scene .uiMini{ display:flex; }

/* Dungeon Master layout */
.dmStage{
  position: relative;
  padding: 14px;
}
.dmVideo{
  width: 100%;
  max-height: 68vh;
  border-radius: 18px;
  border: 1px solid rgba(255,255,255,.18);
  box-shadow: 0 10px 30px rgba(0,0,0,.28);
  background: rgba(0,0,0,.35);
}
.dmPlay{
  position: absolute;
  inset: 0;
  margin: auto;
  width: min(320px, 86vw);
  height: 68px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.22);
  background: rgba(0,0,0,.35);
  color: rgba(255,255,255,.95);
  display:flex;
  align-items:center;
  justify-content:center;
  gap: 12px;
  cursor:pointer;
  backdrop-filter: blur(8px);
  box-shadow: 0 10px 30px rgba(0,0,0,.30);
}
.dmPlay:hover{ background: rgba(255,255,255,.10); }
.dmPlay__icon{ font-size: 22px; transform: translateX(1px); }
.dmPlay__text{ font-weight: 650; }
.dmStage.is-playing .dmPlay{ display:none; }
.dmHint{
  padding: 0 14px 14px 14px;
  color: rgba(255,255,255,.60);
  font-size: 12px;
}

/* When Dungeon Master video is fullscreen, fade away site UI */
body.is-dm-fullscreen #topbar,
body.is-dm-fullscreen #main,
body.is-dm-fullscreen #footer{
  opacity: 0;
  pointer-events:none;
}