/* Discord-ish dark theme (POC) */
:root {
  --bg-0: #1e1f22;   /* rail */
  --bg-1: #2b2d31;   /* sidebar */
  --bg-2: #313338;   /* main */
  --bg-3: #383a40;   /* hover */
  --bg-4: #404249;
  --text-0: #f2f3f5;
  --text-1: #b5bac1;
  --text-2: #80848e;
  --brand: #5865f2;
  --green: #23a55a;
  --red: #f23f43;
  --yellow: #f0b232;
  --radius: 8px;
}
* { box-sizing: border-box; margin: 0; }
html, body { height: 100%; }
body {
  font: 14px/1.4 "gg sans", "Segoe UI", system-ui, -apple-system, sans-serif;
  background: var(--bg-2);
  color: var(--text-0);
  overflow: hidden;
}
#app { display: flex; height: 100vh; }

/* rail */
#rail {
  width: 68px; background: var(--bg-0); padding: 12px 0;
  display: flex; flex-direction: column; align-items: center; gap: 8px; flex-shrink: 0;
}
.rail-icon {
  width: 44px; height: 44px; border-radius: 50%; background: var(--bg-3);
  display: grid; place-items: center; font-weight: 700; color: var(--text-1);
  cursor: pointer; transition: border-radius .15s, background .15s;
}
.rail-icon:hover, .rail-icon.home { border-radius: 16px; background: var(--brand); color: #fff; }
.rail-sep { width: 28px; height: 2px; background: var(--bg-3); border-radius: 1px; }

/* sidebar */
#sidebar {
  width: 250px; background: var(--bg-1); display: flex; flex-direction: column; flex-shrink: 0;
  position: relative; z-index: 10;
}
#server-name {
  padding: 14px 16px; font-weight: 700; font-size: 15px;
  border-bottom: 1px solid rgba(0,0,0,.25); box-shadow: 0 1px 0 rgba(0,0,0,.06);
}
.poc-tag {
  font-size: 10px; background: var(--yellow); color: #000; border-radius: 4px;
  padding: 1px 5px; vertical-align: 2px; margin-left: 6px; font-weight: 800;
}
.channel-group-label {
  padding: 18px 8px 4px 16px; font-size: 11px; font-weight: 700;
  letter-spacing: .4px; color: var(--text-2); text-transform: uppercase;
}
.channel {
  margin: 1px 8px; padding: 7px 8px; border-radius: 6px; color: var(--text-1);
  cursor: pointer; white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.channel:hover { background: var(--bg-3); color: var(--text-0); }
.channel.text { cursor: not-allowed; color: var(--text-2); }
.channel.text .hint { font-size: 10px; margin-left: 4px; }
.channel.voice.active { background: rgba(88,101,242,.25); color: var(--text-0); }
.channel .count { float: right; color: var(--text-2); font-size: 12px; }

#user-panel {
  margin-top: auto; background: var(--bg-0); padding: 8px;
  display: flex; align-items: center; gap: 8px;
}
.me { display: flex; align-items: center; gap: 8px; flex: 1; min-width: 0; }
.me-meta { display: flex; flex-direction: column; min-width: 0; }
#nick {
  background: transparent; border: none; color: var(--text-0); font: inherit;
  font-weight: 600; width: 100%; padding: 0; outline: none; border-bottom: 1px dashed transparent;
}
#nick:hover, #nick:focus { border-bottom-color: var(--text-2); }
#voice-status { font-size: 11px; color: var(--text-2); }
.user-buttons { display: flex; gap: 2px; }
.ctl {
  background: transparent; border: none; color: var(--text-1); font-size: 16px;
  width: 32px; height: 32px; border-radius: 6px; cursor: pointer; position: relative;
}
.ctl:hover { background: var(--bg-3); color: var(--text-0); }
.ctl.off { color: var(--red); }
.ctl.off::after {
  content: ""; position: absolute; left: 7px; top: 15px; width: 18px; height: 2px;
  background: var(--red); transform: rotate(-40deg); border-radius: 1px;
}
.ctl:disabled { opacity: .35; cursor: not-allowed; }
.ctl.active { color: var(--green); }

/* main */
#main { flex: 1; display: flex; flex-direction: column; min-width: 0; }
#stage {
  flex: 1; display: flex; flex-direction: column; padding: 16px; gap: 16px;
  overflow: auto; position: relative;
}
#stage-empty {
  position: absolute; inset: 0; display: grid; place-content: center;
  text-align: center; gap: 8px; color: var(--text-1); padding: 24px;
}
#stage-empty .big-icon { font-size: 56px; }
#stage-empty h2 { font-size: 20px; color: var(--text-0); }
#stage-empty p { max-width: 420px; color: var(--text-2); }
#stage.empty #stage-empty { display: grid; }
#stage:not(.empty) #stage-empty { display: none; }

#screens { display: flex; gap: 12px; flex-wrap: wrap; flex: 1; min-height: 0; align-items: stretch; }
#screens.multi { display: grid; grid-template-columns: repeat(auto-fit, minmax(400px, 1fr)); align-content: stretch; }
#screens.multi .screen-card { flex: none; }
.screen-card.popped {
  min-height: 120px; display: grid; place-items: center;
  background: var(--bg-0); box-shadow: none; border: 1px dashed var(--bg-4);
}
.pop-btn {
  position: absolute; right: 8px; top: 8px; z-index: 2;
  background: rgba(0,0,0,.65); color: var(--text-0); border: none; cursor: pointer;
  border-radius: 5px; padding: 3px 8px; font-size: 13px; font-weight: 600;
}
.pop-btn:hover { background: var(--brand); }
.screen-card {
  position: relative; background: #000; border-radius: var(--radius); overflow: hidden;
  flex: 1 1 480px; max-width: 100%; box-shadow: 0 8px 24px rgba(0,0,0,.4);
}
.screen-card video { width: 100%; height: 100%; display: block; max-height: 100%; object-fit: contain; }
.screen-card .label {
  position: absolute; left: 8px; bottom: 8px; background: rgba(0,0,0,.65);
  padding: 3px 8px; border-radius: 5px; font-size: 12px; font-weight: 600;
}
.screen-card .label .live { color: var(--red); font-weight: 800; margin-right: 5px; }

/* channel user lines */
.channel-users {
  margin: 2px 8px 8px 16px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.channel-user-item {
  position: relative;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 8px;
  border-radius: 4px;
  color: var(--text-1);
  font-size: 13px;
  cursor: default;
}
.channel-user-item:hover {
  background: var(--bg-3);
  color: var(--text-0);
}
.channel-user-item.speaking .user-line-avatar {
  box-shadow: 0 0 0 2px var(--green);
}
.user-line-avatar {
  width: 22px;
  height: 22px;
  font-size: 11px;
}
.user-line-name {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.user-line-badges {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
}
.badge-conn {
  color: var(--yellow);
  font-weight: bold;
}
.badge-mute {
  font-size: 11px;
}
.badge-share {
  font-size: 11px;
}

/* hover volume popup */
.volume-popup {
  position: absolute;
  left: calc(100% + 6px);
  top: 50%;
  transform: translateY(-50%);
  background: var(--bg-0);
  border: 1px solid var(--bg-4);
  border-radius: var(--radius);
  padding: 8px 12px;
  width: 150px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.45);
  display: none;
  z-index: 100;
  pointer-events: auto;
}
.channel-user-item:hover .volume-popup {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.volume-popup .vol-title {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-1);
  white-space: nowrap;
}
.volume-popup input[type=range] {
  width: 100%;
  accent-color: var(--brand);
}

.avatar {
  width: 36px; height: 36px; border-radius: 50%; display: grid; place-items: center;
  font-weight: 700; color: #fff; flex-shrink: 0; user-select: none;
}

/* spatial plane */
#spatial-wrap {
  height: 34vh; min-height: 220px; background: var(--bg-1);
  border-top: 1px solid rgba(0,0,0,.35); display: flex; flex-direction: column;
}
.spatial-label {
  padding: 8px 16px 0; font-size: 11px; font-weight: 700; color: var(--text-2);
  letter-spacing: .5px; display: flex; gap: 16px;
}
.spatial-label .hint { font-weight: 400; letter-spacing: 0; text-transform: none; }
#spatial { flex: 1; width: 100%; cursor: grab; touch-action: none; }
#spatial.dragging { cursor: grabbing; }

/* modal */
#modal-backdrop {
  position: fixed; inset: 0; background: rgba(0,0,0,.7); display: grid;
  place-items: center; z-index: 50;
}
#modal-backdrop.hidden { display: none; }
#settings-modal {
  width: min(620px, 92vw); max-height: 90vh; overflow: auto;
  background: var(--bg-1); border-radius: 8px; padding: 20px;
  box-shadow: 0 12px 40px rgba(0,0,0,.6);
}
#settings-modal h2 { font-size: 18px; margin-bottom: 6px; }
#settings-modal h3 { font-size: 13px; margin: 16px 0 4px; color: var(--text-1); }
#settings-modal p { margin-bottom: 10px; }
#ice-json {
  width: 100%; background: var(--bg-0); color: var(--text-0); border: 1px solid var(--bg-4);
  border-radius: 6px; padding: 10px; font: 12px/1.5 ui-monospace, "Cascadia Code", monospace;
  resize: vertical;
}
#ice-json:focus { outline: none; border-color: var(--brand); }
#ice-server-default {
  background: var(--bg-0); padding: 8px 10px; border-radius: 6px;
  font: 11px/1.5 ui-monospace, monospace; white-space: pre-wrap;
}
.toggle-row { display: flex; gap: 8px; align-items: center; margin-bottom: 8px; cursor: pointer; }
.toggle-row input { accent-color: var(--brand); width: 16px; height: 16px; }
.modal-actions { display: flex; gap: 8px; margin-top: 12px; align-items: center; }
.modal-actions .spacer { flex: 1; }
.modal-actions button {
  padding: 8px 16px; border-radius: 6px; border: none; cursor: pointer;
  font-weight: 600; font-size: 13px;
}
.modal-actions button:not(.ghost) { background: var(--brand); color: #fff; }
.modal-actions button.ghost { background: transparent; color: var(--text-1); }
.modal-actions button.ghost:hover { text-decoration: underline; }

/* toasts */
#toasts {
  position: fixed; bottom: 16px; right: 16px; display: flex; flex-direction: column;
  gap: 8px; z-index: 60; max-width: 380px;
}
.toast {
  background: var(--bg-0); border-left: 3px solid var(--brand); border-radius: 6px;
  padding: 10px 14px; box-shadow: 0 8px 20px rgba(0,0,0,.5); font-size: 13px;
  animation: slide-in .18s ease-out;
}
.toast.error { border-left-color: var(--red); }
.toast.warn { border-left-color: var(--yellow); }
.toast.ok { border-left-color: var(--green); }
@keyframes slide-in { from { transform: translateX(30px); opacity: 0; } }

.hint { color: var(--text-2); font-size: 12px; }
code { font-family: ui-monospace, monospace; font-size: 12px; }