/* ============================================================
   WATCH PARTY — "stage" design
   Immersive dark theater: big rounded video tiles with floating
   labels, a floating top bar, docked glass chat. Orange + teal.
   System fonts only (no external font requests).
   ============================================================ */
:root{
  --bg:#07070B;
  --surface:#101118;
  --surface-2:#171923;
  --line:rgba(255,255,255,0.08);
  --line-strong:rgba(255,255,255,0.16);

  --accent:#FF7A3D;
  --accent-2:#FFA24D;
  --teal:#2DD4BF;
  --red:#FF5A6A;

  --text:#F3F4F8;
  --text-dim:#A1A8B8;
  --text-faint:#666D7E;

  --r-lg:24px;
  --r-md:16px;
  --glass:rgba(16,17,24,0.62);
  --shadow:0 24px 70px rgba(0,0,0,0.55);

  --font:'Inter', ui-sans-serif, system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --chat-w:380px;
}

*{ box-sizing:border-box; -webkit-tap-highlight-color:transparent; }
html,body{ margin:0; padding:0; }
html{ background:var(--bg); }
body{
  font-family:var(--font);
  color:var(--text);
  background:
    radial-gradient(1100px 600px at -5% -15%, rgba(255,122,61,0.20), transparent 60%),
    radial-gradient(900px 600px at 105% 110%, rgba(45,212,191,0.10), transparent 60%),
    var(--bg);
  background-attachment:fixed;
  min-height:100vh; min-height:100dvh;
  -webkit-font-smoothing:antialiased;
  overflow:hidden;
}

/* ---------- app grid ---------- */
.app{
  height:100vh; height:100dvh;
  display:grid;
  grid-template-columns:minmax(0,1fr) var(--chat-w);
  grid-template-rows:auto minmax(0,1fr);
  grid-template-areas:
    "bar   bar"
    "stage chat";
  transition:grid-template-columns .28s cubic-bezier(.2,.8,.2,1);
}
.app.chat-closed{ grid-template-columns:minmax(0,1fr) 0; }

/* ---------- top bar ---------- */
.bar{
  grid-area:bar;
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:16px;
  padding:14px 18px;
}
.brand{ display:flex; align-items:center; gap:12px; min-width:0; }
.brand-icon{
  width:40px; height:40px; border-radius:50%; flex-shrink:0; object-fit:cover; object-position:center;
  border:2px solid var(--accent);
  box-shadow:0 6px 20px rgba(255,122,61,0.38);
}
.brand-name{ font-size:16px; font-weight:800; letter-spacing:-0.02em; line-height:1.1; white-space:nowrap; }
.brand-channel{ font-size:12px; font-weight:600; color:var(--text-faint); }

.views{
  display:flex; gap:4px; padding:4px;
  background:var(--glass); border:1px solid var(--line);
  border-radius:999px;
  backdrop-filter:blur(14px); -webkit-backdrop-filter:blur(14px);
}
.view-btn{
  font-family:inherit; font-size:13px; font-weight:600;
  display:inline-flex; align-items:center; gap:8px;
  padding:9px 18px; border-radius:999px; border:none; cursor:pointer;
  background:transparent; color:var(--text-dim);
  transition:background .15s, color .15s;
}
.view-btn:hover{ color:var(--text); }
.view-btn.active{
  color:#fff;
  background:linear-gradient(135deg,var(--accent),var(--accent-2));
  box-shadow:0 6px 18px rgba(255,122,61,0.35);
}
.dot{ width:7px; height:7px; border-radius:50%; background:transparent; flex-shrink:0; }
.dot.live{ background:var(--red); animation:pulse 1.8s ease-out infinite; }
.view-btn.active .dot.live{ background:#fff; }
@keyframes pulse{
  0%{ box-shadow:0 0 0 0 rgba(255,90,106,0.6); }
  70%{ box-shadow:0 0 0 7px rgba(255,90,106,0); }
  100%{ box-shadow:0 0 0 0 rgba(255,90,106,0); }
}

.bar-right{ display:flex; align-items:center; justify-content:flex-end; gap:8px; }
.live-pill{
  display:flex; align-items:center; gap:8px;
  font-size:12px; font-weight:700; color:var(--text-dim);
  padding:8px 12px; border-radius:999px; background:var(--glass); border:1px solid var(--line);
}
.live-dot{ width:7px; height:7px; border-radius:50%; background:var(--teal); }
.chip-btn{
  font-family:inherit; font-size:12px; font-weight:700; letter-spacing:0.04em;
  display:inline-flex; align-items:center; justify-content:center;
  height:36px; padding:0 14px; border-radius:999px; cursor:pointer;
  background:var(--glass); border:1px solid var(--line); color:var(--text-dim);
  backdrop-filter:blur(14px); -webkit-backdrop-filter:blur(14px);
  transition:background .15s, color .15s, border-color .15s;
}
.chip-btn.icon{ width:36px; padding:0; }
.chip-btn:hover{ color:var(--text); border-color:var(--line-strong); }
.chip-btn.active{ color:var(--accent-2); border-color:rgba(255,122,61,0.5); background:rgba(255,122,61,0.1); }
#host-btn.active{ color:var(--teal); border-color:rgba(45,212,191,0.5); background:rgba(45,212,191,0.1); }

/* ---------- stage + tiles ---------- */
.stage{
  grid-area:stage;
  min-width:0; min-height:0;
  display:grid;
  grid-template-columns:minmax(0,var(--sa,1fr)) 16px minmax(0,var(--sb,1fr));
  grid-template-rows:minmax(0,1fr);
  gap:0;
  padding:0 16px 16px 18px;
}
.stage[data-view="screen"]{ grid-template-columns:minmax(0,1fr); }
.stage[data-view="screen"] #tile-stream:not(.floating),
.stage[data-view="screen"] .split{ display:none; }

.tile{
  position:relative;
  min-width:0; min-height:0;
  border-radius:var(--r-lg);
  overflow:hidden;
  background:#000;
  border:1px solid var(--line);
  box-shadow:var(--shadow);
}
.tile:fullscreen{ border-radius:0; border:none; }
.tile-media{ position:absolute; inset:0; background:#000; display:flex; align-items:center; justify-content:center; }
#twitch-embed{ width:100%; height:100%; }
#twitch-embed iframe{ width:100%; height:100%; border:0; display:block; }
#screen-video{ width:100%; height:100%; display:none; background:#000; object-fit:contain; }

.empty{
  text-align:center; padding:24px;
  font-size:14px; font-weight:500; color:var(--text-faint); line-height:1.6;
}
.empty::before{
  content:''; display:block; width:64px; height:64px; margin:0 auto 14px; border-radius:20px;
  background:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23A1A8B8' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round'%3E%3Crect x='2.5' y='4' width='19' height='13' rx='2.5'/%3E%3Cpath d='M8 21h8M12 17v4'/%3E%3C/svg%3E") center/32px no-repeat,
    var(--surface-2);
  border:1px solid var(--line);
}

/* floating label + fullscreen button */
.tile-label{
  position:absolute; top:14px; left:14px; z-index:5;
  display:flex; align-items:center; gap:8px;
  padding:6px 8px 6px 12px; border-radius:999px;
  background:var(--glass); border:1px solid var(--line);
  backdrop-filter:blur(14px); -webkit-backdrop-filter:blur(14px);
  pointer-events:none;
}
.tile-name{ font-size:12.5px; font-weight:700; }
.sync-pill{
  font-size:10.5px; font-weight:700; letter-spacing:0.05em; text-transform:uppercase;
  padding:3px 9px; border-radius:999px; color:var(--text-faint); border:1px solid var(--line);
}
.sync-pill.is-live{ color:#FF9AA5; border-color:rgba(255,90,106,0.5); background:rgba(255,90,106,0.12); }
.sync-pill.is-watching{ color:var(--teal); border-color:rgba(45,212,191,0.5); background:rgba(45,212,191,0.1); }
.sync-pill.is-twitch{ color:#C7A8FF; border-color:rgba(167,125,255,0.45); background:rgba(167,125,255,0.1); }

.tile-tools{
  position:absolute; top:14px; right:14px; z-index:6;
  display:flex; gap:6px;
  opacity:0; transition:opacity .15s;
}
.tile:hover .tile-tools, .tile-tools:focus-within, .floating .tile-tools{ opacity:1; }
@media (hover:none){ .tile-tools{ opacity:1; } }
.tile-btn{
  width:36px; height:36px; border-radius:12px; cursor:pointer;
  display:flex; align-items:center; justify-content:center;
  color:var(--text); background:var(--glass); border:1px solid var(--line);
  backdrop-filter:blur(14px); -webkit-backdrop-filter:blur(14px);
  transition:background .15s, border-color .15s;
}
.tile-btn:hover{ background:rgba(40,42,56,0.9); border-color:var(--line-strong); }
.tile-btn .ic-dock{ display:none; }
.floating .tile-btn .ic-pop{ display:none; }
.floating .tile-btn .ic-dock{ display:block; }
.only-floating{ display:none; }
.floating .only-floating{ display:flex; }

/* drag strip + resize grip (floating windows only) */
.tile-drag{ display:none; position:absolute; left:0; top:0; right:140px; height:56px; z-index:4; cursor:grab; touch-action:none; }
.floating .tile-drag{ display:block; }
.tile-resize{
  display:none; position:absolute; right:0; bottom:0; width:26px; height:26px; z-index:7; cursor:nwse-resize; touch-action:none;
  background:linear-gradient(135deg, transparent 0 52%, rgba(255,255,255,0.45) 52% 60%, transparent 60% 72%, rgba(255,255,255,0.45) 72% 80%, transparent 80%);
}
.floating:not(.minimized) .tile-resize{ display:block; }

/* ---- floating window ---- */
.floating{
  position:fixed; z-index:60;
  border-radius:20px;
  border:1px solid var(--line-strong);
  box-shadow:0 30px 90px rgba(0,0,0,0.7), 0 0 0 1px rgba(255,255,255,0.04);
}
.floating:fullscreen{ left:0 !important; top:0 !important; width:100% !important; height:100% !important; border-radius:0; }
.floating.dragging{ box-shadow:0 40px 110px rgba(0,0,0,0.8), 0 0 0 2px rgba(255,122,61,0.55); }

/* ---- minimized floating icon (bubble) ---- */
.bubble{ display:none; position:absolute; inset:0; align-items:center; justify-content:center; color:#fff; background:linear-gradient(135deg,var(--accent),var(--accent-2)); z-index:9; cursor:grab; }
.bubble-dot{ position:absolute; top:9px; right:9px; width:11px; height:11px; border-radius:50%; background:transparent; border:2px solid transparent; }
.bubble-dot.live{ background:var(--red); border-color:#fff; animation:pulse 1.8s ease-out infinite; }
.floating.minimized{ border-radius:50%; overflow:hidden; border:2px solid rgba(255,255,255,0.25); box-shadow:0 14px 40px rgba(255,122,61,0.5); }
.floating.minimized .bubble{ display:flex; }
.floating.minimized .tile-media{ visibility:hidden; }
.floating.minimized .tile-label,
.floating.minimized .tile-tools,
.floating.minimized .tile-drag,
.floating.minimized .dock,
.floating.minimized .toast,
.floating.minimized .toast-btn,
.floating.minimized .play-overlay{ display:none !important; }

/* stage layout while a tile is floating: the remaining tile takes the whole area */
.stage.has-float{ grid-template-columns:minmax(0,1fr); grid-template-rows:minmax(0,1fr); }
.stage.has-float .split{ display:none; }
.stage[data-view="screen"] #tile-stream.floating{ display:block; }
body.moving{ cursor:grabbing; }

/* host controls (floating dock) */
.dock{
  position:absolute; left:16px; right:16px; bottom:16px; z-index:6;
  flex-direction:column; gap:8px;
  padding:14px; border-radius:var(--r-md);
  background:var(--glass); border:1px solid var(--line-strong);
  backdrop-filter:blur(18px); -webkit-backdrop-filter:blur(18px);
}
.dock-main{ display:flex; flex-wrap:wrap; align-items:center; gap:12px; }
.dock-status{ font-size:12.5px; font-weight:500; color:var(--text-dim); }
.dock-tip{ font-size:11.5px; line-height:1.5; color:var(--text-faint); }

/* viewer status (floating) */
.toast{
  display:none;
  position:absolute; left:16px; bottom:16px; z-index:6;
  max-width:calc(100% - 150px);
  padding:10px 14px; border-radius:14px;
  font-size:12.5px; line-height:1.5; font-weight:500; color:var(--text-dim);
  background:var(--glass); border:1px solid var(--line);
  backdrop-filter:blur(14px); -webkit-backdrop-filter:blur(14px);
}
.toast-btn{ position:absolute; right:16px; bottom:16px; z-index:6; }

.play-overlay{ position:absolute; z-index:7; left:50%; top:50%; transform:translate(-50%,-50%); padding:14px 22px; font-size:14px; }

/* ---------- buttons / inputs ---------- */
.btn{
  font-family:inherit; font-size:13px; font-weight:700;
  padding:11px 18px; border-radius:999px; border:none; cursor:pointer; white-space:nowrap;
  color:#fff; background:linear-gradient(135deg,var(--accent),var(--accent-2));
  box-shadow:0 8px 22px rgba(255,122,61,0.3);
  transition:filter .15s, transform .05s;
}
.btn:hover{ filter:brightness(1.1); }
.btn:active{ transform:scale(0.98); }
.btn.ghost{ background:rgba(255,255,255,0.06); border:1px solid var(--line); color:var(--text-dim); box-shadow:none; }
.btn.ghost:hover{ color:var(--text); background:rgba(255,255,255,0.1); filter:none; }
.btn.danger{ background:rgba(255,90,106,0.16); border:1px solid rgba(255,90,106,0.5); color:#FF9AA5; box-shadow:none; }
.btn.danger:hover{ background:rgba(255,90,106,0.28); filter:none; }
.btn:disabled{ opacity:.6; cursor:default; }

.input{
  width:100%; font-family:inherit; font-size:16px; font-weight:500; color:var(--text);
  background:var(--surface); border:1px solid var(--line); border-radius:14px;
  padding:13px 14px; outline:none;
}
.input::placeholder{ color:var(--text-faint); }
.input:focus{ border-color:rgba(255,122,61,0.7); box-shadow:0 0 0 3px rgba(255,122,61,0.16); }

/* ---------- chat (docked column) ---------- */
.chat{
  grid-area:chat;
  min-width:0; min-height:0;
  display:flex; flex-direction:column;
  margin:0 16px 16px 0;
  position:relative;
  border-radius:var(--r-lg);
  background:var(--surface);
  border:1px solid var(--line);
  box-shadow:var(--shadow);
}
.chat.closed{ display:none; }
.app.chat-closed .chat{ margin:0; border:none; }
.chat-head{
  display:flex; align-items:center; justify-content:space-between;
  padding:12px 14px; border-bottom:1px solid var(--line);
}
.chat-title{ font-size:14px; font-weight:800; letter-spacing:-0.01em; }
.chat-head{ border-radius:var(--r-lg) var(--r-lg) 0 0; background:var(--surface); }
.chat-body{ flex:1; min-height:0; background:var(--surface); overflow:hidden; border-radius:0 0 var(--r-lg) var(--r-lg); }
#twitch-chat{ width:100%; height:100%; border:0; display:block; }

#chat-sidebar-tab{ display:none; }

/* ---------- resize handles ---------- */
.split{
  position:relative; display:flex; align-items:center; justify-content:center;
  cursor:col-resize; touch-action:none; outline:none; user-select:none; -webkit-user-select:none;
}
.split span, .split-chat span{
  display:block; width:4px; height:56px; border-radius:99px;
  background:var(--line-strong);
  transition:background .15s, height .15s, width .15s, box-shadow .15s;
}
.split:hover span, .split:focus-visible span, .split.dragging span,
.split-chat:hover span, .split-chat:focus-visible span, .split-chat.dragging span{
  height:84px; background:var(--accent); box-shadow:0 0 14px rgba(255,122,61,0.65);
}
.stage[data-view="both"] .split{ }
@media (max-width:1200px){
  .split{ cursor:row-resize; }
  .split span{ width:56px; height:4px; }
  .split:hover span, .split:focus-visible span, .split.dragging span{ width:84px; height:4px; }
}
.split-chat{
  position:absolute; left:-16px; top:0; bottom:0; width:16px; z-index:8;
  display:flex; align-items:center; justify-content:center;
  cursor:col-resize; touch-action:none; outline:none;
}
body.resizing{ cursor:col-resize; user-select:none; -webkit-user-select:none; }
body.resizing iframe, body.resizing video{ pointer-events:none; }
body.resizing .app{ transition:none; }

/* ---------- twitch menu ---------- */
.menu-wrap{ position:relative; }
.twitch-btn{ gap:8px; letter-spacing:0.02em; }
.twitch-btn[aria-expanded="true"]{ color:#C7A8FF; border-color:rgba(167,125,255,0.5); }
.menu{
  position:absolute; right:0; top:calc(100% + 8px); z-index:90; min-width:270px;
  padding:6px; border-radius:16px;
  background:var(--surface-2); border:1px solid var(--line-strong); box-shadow:var(--shadow);
  display:flex; flex-direction:column; gap:2px;
}
.menu[hidden]{ display:none; }
.menu-item{
  text-align:left; font-family:inherit; font-size:13.5px; font-weight:600; color:var(--text);
  background:transparent; border:none; border-radius:11px; padding:11px 12px; cursor:pointer;
  display:flex; flex-direction:column; gap:2px;
}
.menu-item small{ font-size:11.5px; font-weight:500; color:var(--text-faint); }
.menu-item:hover{ background:rgba(255,255,255,0.07); }

/* ---------- small toast ---------- */
.app-toast{
  position:fixed; left:50%; bottom:24px; transform:translateX(-50%); z-index:120;
  max-width:min(92vw,460px); padding:12px 18px; border-radius:14px;
  font-size:13px; font-weight:600; line-height:1.5; text-align:center;
  background:var(--surface-2); border:1px solid var(--line-strong); box-shadow:var(--shadow);
}
.app-toast[hidden]{ display:none; }

/* ---------- host login modal ---------- */
.modal{
  position:fixed; inset:0; z-index:100;
  display:flex; align-items:center; justify-content:center; padding:20px;
  background:rgba(4,5,9,0.65); backdrop-filter:blur(8px); -webkit-backdrop-filter:blur(8px);
}
.modal[hidden]{ display:none; }
.modal-card{
  width:100%; max-width:380px; display:flex; flex-direction:column; gap:12px;
  padding:24px; border-radius:var(--r-lg);
  background:var(--surface); border:1px solid var(--line-strong); box-shadow:var(--shadow);
}
.modal-title{ font-size:19px; font-weight:800; letter-spacing:-0.02em; }
.modal-sub{ font-size:13px; color:var(--text-dim); line-height:1.5; }
.modal-error{ min-height:18px; font-size:12.5px; font-weight:600; color:#FF9AA5; }
.modal-actions{ display:flex; justify-content:flex-end; gap:8px; }

/* ---------- narrower desktop: stack the two tiles ---------- */
@media (max-width:1200px){
  .stage[data-view="both"]{
    grid-template-columns:minmax(0,1fr);
    grid-template-rows:minmax(0,var(--sa,1fr)) 16px minmax(0,var(--sb,1fr));
  }
}


/* ============================================================
   EDIT-LAYOUT MODE  (handles & window tools are hidden until you press "Upravit rozložení")
   ============================================================ */
.split, .split-chat{ opacity:0; pointer-events:none; transition:opacity .2s; }
.editing .split, .editing .split-chat{ opacity:1; pointer-events:auto; }
.editing .split span, .editing .split-chat span{ background:rgba(255,122,61,0.55); }
.tile-tools [data-float], .tile-tools [data-min]{ display:none !important; }
.editing .tile-drag{ display:block; }
.editing .floating.minimized .tile-drag{ display:none !important; }
.tile-tools [data-float]{ display:none !important; }
.editing .floating .tile-tools [data-min]{ display:flex !important; }
.floating .tile-drag, .floating .tile-resize{ display:none !important; }
.editing .floating .tile-drag{ display:block !important; }
.editing .floating:not(.minimized) .tile-resize{ display:block !important; }
.editing .tile, .editing .chat{ border-color:rgba(255,122,61,0.5); }
.editing .floating .tile-tools, .editing .tile-tools{ opacity:1; }
/* corner grips on docked windows (visible only while editing) */
.dock-grip{
  display:none; position:absolute; width:34px; height:34px; z-index:8; touch-action:none;
  background:
    linear-gradient(135deg, transparent 0 46%, var(--accent) 46% 54%, transparent 54% 66%, var(--accent) 66% 74%, transparent 74% 86%, var(--accent) 86% 94%, transparent 94%);
  filter:drop-shadow(0 0 6px rgba(255,122,61,0.7));
}
.editing .dock-grip{ display:block; }
.grip-br{ right:0; bottom:0; cursor:nwse-resize; border-radius:0 0 20px 0; }
.grip-bl{ left:0; bottom:0; cursor:nesw-resize; border-radius:0 0 0 20px; transform:scaleX(-1); }
.stage[data-view="screen"] .dock-grip, .stage.has-float .dock-grip, .floating .dock-grip{ display:none !important; }
.chat.floating .dock-grip{ display:none !important; }
.app.chat-floating #grip-chat{ display:none !important; }
@media (max-width:1200px){
  #grip-stream{ bottom:auto; top:0; border-radius:20px 0 0 0; transform:scale(-1,-1); cursor:nwse-resize; }
}
.editing .split span, .editing .split-chat span{ width:6px; height:84px; box-shadow:0 0 14px rgba(255,122,61,0.6); }
@media (max-width:1200px){ .editing .split span{ width:84px; height:6px; } }
#edit-layout.active{ color:#fff; border-color:transparent; background:linear-gradient(135deg,var(--accent),var(--accent-2)); }

/* chat as a floating window */
.chat .tile-tools.chat-tools{ position:static; opacity:1; margin-left:auto; margin-right:8px; }
.chat .tile-btn{ width:32px; height:32px; border-radius:10px; }
.chat .tile-drag{ right:150px; height:58px; }
.chat.floating{
  position:fixed; z-index:60; margin:0; display:flex; border-radius:20px;
  border:1px solid var(--line-strong);
  box-shadow:0 30px 90px rgba(0,0,0,0.7), 0 0 0 1px rgba(255,255,255,0.04);
}
.app.chat-closed .chat.floating{ border:1px solid var(--line-strong); }
.chat.floating.minimized{ border-radius:50%; overflow:hidden; border:2px solid rgba(255,255,255,0.25); box-shadow:0 14px 40px rgba(255,122,61,0.5); }
.chat.floating.dragging{ box-shadow:0 40px 110px rgba(0,0,0,0.8), 0 0 0 2px rgba(255,122,61,0.55); }
.chat.floating.closed{ display:none; }
.chat.floating .split-chat{ display:none; }
.app.chat-floating{ grid-template-columns:minmax(0,1fr) 0; }
.chat.floating.minimized .chat-head, .chat.floating.minimized .chat-body{ visibility:hidden; }
.chat.floating.minimized .tile-drag{ display:none !important; }

.app-toast{ display:flex; align-items:center; gap:14px; }
.app-toast[hidden]{ display:none; }
.app-toast .btn{ padding:8px 14px; font-size:12px; flex-shrink:0; }
.app-toast .btn[hidden]{ display:none; }
/* ============================================================
   PHONE / TABLET  (< 900px)
   Page scrolls, tiles stack at 16:9 with their controls below
   the picture, chat is a bottom sheet from a floating button.
   ============================================================ */
@media (max-width:899px){
  body{ overflow:auto; }
  .app{ display:block; height:auto; min-height:100dvh; }

  .bar{
    grid-template-columns:1fr auto;
    grid-template-areas:"brand right" "views views";
    gap:10px 8px;
    padding:12px 14px 6px;
    padding-left:max(14px, env(safe-area-inset-left));
    padding-right:max(14px, env(safe-area-inset-right));
  }
  .brand{ grid-area:brand; }
  .bar-right{ grid-area:right; }
  .views{ grid-area:views; width:100%; }
  .view-btn{ flex:1; justify-content:center; padding:10px 8px; }
  #chat-toggle, #edit-layout, #reset-layout{ display:none !important; }
  .chip-btn{ height:40px; }

  .stage{
    display:flex; flex-direction:column; gap:14px;
    padding:8px 12px 110px;
    padding-left:max(12px, env(safe-area-inset-left));
    padding-right:max(12px, env(safe-area-inset-right));
  }
  .stage[data-view="both"]{ display:flex; }
  .split, .split-chat{ display:none; }
  .tile.floating{ position:relative !important; left:auto !important; top:auto !important; width:auto !important; height:auto !important; border-radius:var(--r-lg); z-index:auto; }
  .tile.floating.minimized{ border-radius:var(--r-lg); border:1px solid var(--line); box-shadow:none; overflow:visible; }
  .tile.floating.minimized .bubble{ display:none; }
  .tile.floating.minimized .tile-media{ visibility:visible; }
  .tile.floating.minimized .tile-label, .tile.floating.minimized .tile-tools{ display:flex !important; }
  .stage.has-float{ display:flex; }
  .menu{ right:-4px; }

  .tile{ display:flex; flex-direction:column; background:var(--surface); }
  .tile-media{ position:relative; inset:auto; aspect-ratio:16 / 9; width:100%; flex:none; }
  .empty{ padding:12px; font-size:13px; }
  .empty::before{ width:48px; height:48px; margin-bottom:8px; background-size:26px, auto; }

  .tile-label{ top:10px; left:10px; }
  .tile-tools{ top:10px; right:10px; }
  [data-float], [data-min], .tile-drag, .tile-resize{ display:none !important; }

  .dock, .toast{ position:static; max-width:none; margin:12px; backdrop-filter:none; -webkit-backdrop-filter:none; }
  .toast-btn{ position:static; margin:0 12px 12px; align-self:flex-start; }

  .btn{ min-height:44px; }

  /* chat -> bottom sheet */
  .chat{
    position:fixed; left:0; right:0; bottom:0; z-index:80;
    height:78vh; height:78dvh; margin:0;
    border-radius:22px 22px 0 0; border:1px solid var(--line-strong); border-bottom:none;
    box-shadow:0 -24px 70px rgba(0,0,0,0.6);
    padding-bottom:env(safe-area-inset-bottom);
  }
  .app.chat-closed .chat{ margin:0; border:1px solid var(--line-strong); border-bottom:none; }
  .chat.closed{ display:none; }
  .chat-head .chip-btn{ width:40px; height:40px; }

  #chat-sidebar-tab{
    position:fixed; right:16px; bottom:max(18px, env(safe-area-inset-bottom)); z-index:70;
    display:flex; align-items:center; gap:8px;
    padding:14px 20px; border:none; border-radius:999px; cursor:pointer;
    font-family:inherit; font-size:14px; font-weight:700; color:#fff;
    background:linear-gradient(135deg,var(--accent),var(--accent-2));
    box-shadow:0 12px 32px rgba(255,122,61,0.5);
  }
  .app:not(.chat-closed) #chat-sidebar-tab{ display:none; }
}

@media (max-width:380px){
  .brand-channel{ display:none; }
}

@media (prefers-reduced-motion:reduce){
  *{ animation:none !important; transition:none !important; }
}

/* quality dropdown: readable options in the native popup */
#screen-quality{ color-scheme:dark; }
#screen-quality option{ background:#16161d; color:#f5f5f7; }