:root {
  --bg: #f5f7fb;
  --bg-grad: linear-gradient(180deg, #f9fbff 0%, #edf2fb 100%);
  --blob-primary: radial-gradient(50% 50% at 50% 50%, rgba(118, 169, 250, .35) 0%, rgba(255,255,255,0) 65%);
  --blob-secondary: radial-gradient(50% 50% at 50% 50%, rgba(59, 130, 246, .18) 0%, rgba(255,255,255,0) 65%);
  --panel: #ffffff;
  --panel-grad: linear-gradient(180deg, #ffffff 0%, #f4f7fc 100%);
  --fg: #111827;
  --muted: #6b7280;
  --accent: #2563eb;
  --accent-2: #0ea5e9;
  --danger: #ef4444;
  --ok: #16a34a;
  --shadow: 0 18px 40px rgba(15, 23, 42, 0.08);
  --glass: rgba(255, 255, 255, 0.85);
  --radius: 16px;
  --radius-sm: 12px;
  --ease: cubic-bezier(.22,.61,.36,1);
  --fast: .18s;
  --normal: .28s;
  --topbar-bg: rgba(255, 255, 255, 0.92);
  --topbar-border: rgba(15, 23, 42, 0.08);
  --topbar-shadow: 0 6px 30px rgba(15, 23, 42, 0.08);
  --brand-gradient: linear-gradient(90deg, #2563eb, #7c3aed 70%, #111827);
  --chip-bg: rgba(15, 23, 42, 0.04);
  --chip-border: rgba(15,23,42,0.08);
  --chip-shadow: 0 8px 24px rgba(15, 23, 42, 0.06);
  --avatar-gradient: linear-gradient(180deg, #2563eb, #7c3aed);
  --input-bg: rgba(15, 23, 42, 0.03);
  --input-border: rgba(15, 23, 42, 0.12);
  --input-focus-border: rgba(37, 99, 235, .6);
  --input-focus-shadow: 0 0 0 3px rgba(37, 99, 235, .18);
  --card-border: rgba(15, 23, 42, 0.08);
  --card-muted-bg: rgba(15,23,42,.03);
  --card-muted-border: rgba(15,23,42,.08);
  --chat-dot-bg: rgba(15,23,42,0.2);
  --chat-dot-ring: rgba(37,99,235,.15);
  --chat-dot-ring-online: rgba(16,163,74,.15);
  --chat-msg-bg: rgba(15,23,42,.03);
  --chat-msg-border: rgba(15,23,42,.05);
  --chat-msg-me-bg: rgba(37, 99, 235, .08);
  --chat-msg-me-border: rgba(37, 99, 235, .24);
  --button-bg: #fff;
  --button-border: rgba(15, 23, 42, 0.12);
  --button-shadow: 0 10px 20px rgba(15, 23, 42, 0.08);
  --button-hover-bg: rgba(37, 99, 235, 0.08);
  --button-hover-border: rgba(37, 99, 235, 0.3);
  --button-primary-bg: linear-gradient(135deg, #2563eb, #7c3aed);
  --button-primary-border: transparent;
  --button-primary-shadow: 0 14px 30px rgba(79, 70, 229, 0.35);
  --tile-border: rgba(15, 23, 42, 0.08);
  --tile-hover-shadow: 0 18px 36px rgba(15, 23, 42, .15);
  --action-bubble-bg: rgba(255, 255, 255, 0.85);
  --action-bubble-border: rgba(15,23,42,0.1);
  --action-bubble-shadow: 0 6px 20px rgba(15,23,42,0.15);
  --icon-btn-bg: rgba(15,23,42,0.05);
  --icon-btn-border: rgba(15,23,42,0.1);
  --icon-btn-hover-bg: rgba(37,99,235,0.08);
  --icon-btn-danger-bg: rgba(239, 68, 68, 0.18);
  --icon-btn-danger-border: rgba(239, 68, 68, 0.4);
  --icon-btn-danger-text: #b91c1c;
  --slider-track-bg: rgba(15,23,42,0.1);
  --slider-track-border: rgba(15,23,42,0.12);
  --status-bg: rgba(255, 255, 255, .9);
  --status-border: rgba(15,23,42,.08);
  --status-shadow: 0 8px 24px rgba(15,23,42,.15);
  --overlay-bg: rgba(238, 242, 255, 0.8);
  --overlay-panel-border: rgba(15,23,42,0.12);
  --ghost-border: rgba(15,23,42,.18);
  --ghost-hover-bg: rgba(15,23,42,.04);
  --video-bg: #000000;
}

body[data-theme="dark"] {
  --bg: #0c0f18;
  --bg-grad: radial-gradient(1200px 700px at 10% -10%, rgba(28, 51, 120, 0.18), transparent 60%),
               radial-gradient(900px 600px at 100% 0%, rgba(39, 94, 143, 0.15), transparent 60%),
               #0c0f18;
  --blob-primary: radial-gradient(50% 50% at 50% 50%, rgba(88, 139, 255, .14) 0%, rgba(0,0,0,0) 60%);
  --blob-secondary: radial-gradient(50% 50% at 50% 50%, rgba(61, 220, 151, .10) 0%, rgba(0,0,0,0) 60%);
  --panel: #121726;
  --panel-grad: linear-gradient(180deg, rgba(28, 35, 60, .6), rgba(20, 25, 40, .65));
  --fg: #e8ecf1;
  --muted: #9aa3b2;
  --accent: #6bb6ff;
  --accent-2: #5ac8fa;
  --danger: #ff5f56;
  --ok: #3ddc97;
  --shadow: 0 12px 36px rgba(0,0,0,0.4);
  --glass: rgba(20, 24, 39, 0.6);
  --topbar-bg: linear-gradient(135deg, rgba(21,27,46,.8) 0%, rgba(18,22,41,.8) 100%);
  --topbar-border: #1f2640;
  --topbar-shadow: 0 18px 40px rgba(0,0,0,0.35);
  --brand-gradient: linear-gradient(90deg, #d8e7ff, #a7caff 50%, #e8ecf1);
  --chip-bg: linear-gradient(180deg, rgba(20,25,40,.7), rgba(14,18,30,.7));
  --chip-border: rgba(60,72,120,.5);
  --chip-shadow: 0 8px 24px rgba(0,0,0,.25);
  --avatar-gradient: linear-gradient(180deg, #628bff, #3d66e8);
  --input-bg: rgba(13, 16, 32, .7);
  --input-border: #2a2f45;
  --input-focus-border: rgba(113, 153, 255, .7);
  --input-focus-shadow: 0 0 0 3px rgba(109, 149, 255, .15);
  --card-border: rgba(43, 51, 84, .9);
  --card-muted-bg: rgba(255,255,255,.03);
  --card-muted-border: rgba(255,255,255,.08);
  --chat-dot-bg: rgba(154,163,178,.8);
  --chat-dot-ring: rgba(255,255,255,.08);
  --chat-dot-ring-online: rgba(61,220,151,.15);
  --chat-msg-bg: rgba(255,255,255,.03);
  --chat-msg-border: rgba(255,255,255,.06);
  --chat-msg-me-bg: rgba(98, 139, 255, .08);
  --chat-msg-me-border: rgba(98, 139, 255, .22);
  --button-bg: linear-gradient(180deg, rgba(23, 28, 42, .92), rgba(17, 21, 33, .92));
  --button-border: rgba(58, 69, 106, .8);
  --button-shadow: 0 1px 0 rgba(255,255,255,.03) inset, 0 10px 20px rgba(0,0,0,.25);
  --button-hover-bg: #1a2136;
  --button-hover-border: #3a456a;
  --button-primary-bg: linear-gradient(180deg, rgba(44, 83, 204, .9), rgba(29, 61, 160, .9));
  --button-primary-border: rgba(98, 139, 255, .6);
  --button-primary-shadow: 0 14px 30px rgba(30,64,175,.5);
  --tile-border: rgba(43, 51, 84, .9);
  --tile-hover-shadow: 0 16px 36px rgba(0,0,0,.45);
  --action-bubble-bg: rgba(8, 10, 18, 0.45);
  --action-bubble-border: rgba(255,255,255,0.08);
  --action-bubble-shadow: 0 6px 20px rgba(0,0,0,0.35);
  --icon-btn-bg: rgba(255,255,255,0.06);
  --icon-btn-border: rgba(255,255,255,0.15);
  --icon-btn-hover-bg: rgba(255,255,255,0.1);
  --icon-btn-danger-bg: rgba(255, 95, 86, 0.12);
  --icon-btn-danger-border: rgba(255, 95, 86, 0.26);
  --icon-btn-danger-text: #ffd3cf;
  --slider-track-bg: rgba(255,255,255,0.15);
  --slider-track-border: rgba(255,255,255,0.12);
  --status-bg: rgba(15, 20, 35, .75);
  --status-border: rgba(255,255,255,.08);
  --status-shadow: 0 8px 24px rgba(0,0,0,.35);
  --overlay-bg: rgba(5, 7, 12, 0.6);
  --overlay-panel-border: #2b3354;
  --ghost-border: rgba(60,72,120,.45);
  --ghost-hover-bg: rgba(255,255,255,.06);
}

[hidden] { display: none !important; }

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  min-height: 100vh;
  color: var(--fg);
  background: var(--bg-grad);
  font: 14px/1.5 "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
body.modal-open { overflow: hidden; }
body::before, body::after {
  content: "";
  position: fixed;
  inset: -20% -10% auto auto;
  z-index: -1;
  width: 60vmax;
  height: 60vmax;
  pointer-events: none;
  background: var(--blob-primary);
  filter: blur(45px);
  animation: float 16s ease-in-out infinite;
}
body::after {
  inset: auto auto -25% -15%;
  width: 55vmax;
  height: 55vmax;
  background: var(--blob-secondary);
  animation-duration: 20s;
}
@keyframes float {
  0% { transform: translateY(0) rotate(0); opacity: .85; }
  50% { transform: translateY(-14px) rotate(6deg); opacity: 1; }
  100% { transform: translateY(0) rotate(0); opacity: .85; }
}

.topbar {
  display: flex;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
  padding: 14px clamp(16px, 4vw, 40px);
  background: var(--topbar-bg);
  border-bottom: 1px solid var(--topbar-border);
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: saturate(120%) blur(14px);
  box-shadow: var(--topbar-shadow);
}
.top-actions { display: flex; gap: 12px; align-items: center; }
.auth-controls {
  display: flex;
  gap: 8px;
  align-items: center;
}
.auth-controls a {
  text-decoration: none;
  color: inherit;
}
.brand {
  font-weight: 800;
  letter-spacing: 0.3px;
  font-size: 18px;
  background: var(--brand-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.room-link { display: flex; gap: 8px; align-items: center; }
.room-link input {
  width: 320px;
  max-width: 60vw;
  background: var(--input-bg);
  color: var(--fg);
  border: 1px solid var(--input-border);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  transition: border-color var(--fast) var(--ease), box-shadow var(--fast) var(--ease), background var(--fast) var(--ease);
}
.room-link button { padding: 10px 12px; }

.me-badge {
  display: flex;
  gap: 10px;
  align-items: center;
  background: var(--chip-bg);
  border: 1px solid var(--chip-border);
  padding: 8px 12px;
  border-radius: 999px;
  box-shadow: var(--chip-shadow);
}
.me-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-weight: 700;
  background: var(--avatar-gradient);
  color: #f9fbff;
  font-size: 15px;
  overflow: hidden;
  position: relative;
}
.me-avatar.has-image {
  background: rgba(0,0,0,0.2);
  color: transparent;
}
.me-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.me-meta { line-height: 1.05; }
.me-name { font-weight: 700; font-size: 13px; }
.me-status { font-size: 11px; color: var(--muted); text-transform: lowercase; }
.me-badge.online .me-status { color: var(--ok); }

.theme-toggle {
  width: 40px;
  height: 36px;
  padding: 0;
  display: grid;
  place-items: center;
  font-size: 18px;
}

.wrap {
  padding: clamp(16px, 3vw, 32px);
  display: grid;
  gap: 24px;
  width: min(1500px, 100%);
  margin: 0 auto 40px;
}
.layout {
  display: grid;
  gap: 24px;
  grid-template-columns: 1fr;
}
.layout > * { min-width: 0; }
.layout .content {
  /* display: grid; */
  gap: 16px;
  align-items: start;
  grid-template-columns: 1fr;
  grid-column: 1 / -1;
}
@media (min-width: 768px) {
  .layout {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .layout .content { grid-column: 1 / -1; }
}
@media (min-width: 1024px) {
  .layout .content {
    grid-template-columns: minmax(420px, 1.6fr) minmax(320px, 1fr);
  }
}
@media (min-width: 1200px) {
  .layout {
    grid-template-columns: minmax(260px, 1.9fr) minmax(290px, 1.2fr) minmax(350px, 2.1fr);
    grid-template-areas:
      "rooms control stage"
      "rooms control stage";
    align-items: start;
  }
  .static-rooms { grid-area: rooms; }
  .control-panel { grid-area: control; }
  .layout .content { grid-area: stage; }
  .static-rooms,
  .control-panel {
    position: sticky;
    top: 90px;
    align-self: start;
  }
}

.engage-column {
  display: flex;
  flex-direction: column;
  gap: 16px;
  align-items: stretch;
}
.engage-column .chat { order: 1; }
.engage-column .screens { order: 2; }

.static-rooms {
  display: grid;
  gap: 12px;
  align-content: start;
}
.rooms-card {
  background: var(--panel);
  border: 1px solid var(--card-border);
  border-radius: 24px;
  padding: clamp(16px, 3vw, 28px);
  box-shadow: var(--shadow);
  display: grid;
  gap: 16px;
}
.rooms-head { display: grid; gap: 4px; }
.rooms-label {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--accent-2);
  font-weight: 700;
}
.rooms-head p { margin: 0; color: var(--muted); font-size: 13px; }
.rooms-list { display: grid; gap: 10px; }
.rooms-empty {
  text-align: center;
  font-size: 13px;
  color: var(--muted);
  padding: 12px;
  border-radius: var(--radius-sm);
  border: 1px dashed var(--card-border);
  background: var(--card-muted-bg);
}
.rooms-foot {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
  font-size: 12px;
  color: var(--muted);
}
.room-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .05em;
  text-transform: uppercase;
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--chip-bg);
  border: 1px solid var(--chip-border);
  width: fit-content;
}
.quick-room {
  border: 1px solid var(--tile-border);
  border-radius: 18px;
  padding: 12px 14px;
  background: var(--card-muted-bg);
  display: grid;
  gap: 10px;
  transition: border-color var(--normal) var(--ease), box-shadow var(--normal) var(--ease), transform var(--normal) var(--ease);
}
.quick-room:hover {
  border-color: var(--button-hover-border);
  box-shadow: var(--tile-hover-shadow);
  transform: translateY(-2px);
}
.quick-room .room-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.room-icon {
  width: 38px;
  height: 38px;
  border-radius: 14px;
  background: var(--action-bubble-bg);
  border: 1px solid var(--action-bubble-border);
  display: grid;
  place-items: center;
  font-size: 18px;
  box-shadow: var(--action-bubble-shadow);
}
.room-main {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}
.room-meta { display: grid; gap: 2px; min-width: 0; }
.room-name {
  font-weight: 700;
  font-size: 15px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.room-desc {
  font-size: 12px;
  color: var(--muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.room-presence {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.room-names {
  font-size: 12px;
  color: var(--fg);
  flex: 1 1 auto;
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.room-avatars {
  display: flex;
  align-items: center;
}
.room-avatars span {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--avatar-gradient);
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  color: #fff;
  font-weight: 600;
  font-size: 12px;
  display: grid;
  place-items: center;
  border: 2px solid var(--panel);
  margin-left: -8px;
  overflow: hidden;
  transition: transform var(--fast) var(--ease), box-shadow var(--fast) var(--ease);
}
.room-avatars span.has-image {
  color: transparent;
  background-color: transparent;
}
.room-avatars span:hover {
  transform: scale(3);
  z-index: 5;
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.5);
}
.room-avatars span:first-child { margin-left: 0; }
.room-avatars span.empty {
  background: transparent;
  color: var(--muted);
  border-color: var(--card-border);
}
.room-avatars span.more {
  background: var(--chip-bg);
  color: var(--fg);
}
.room-count {
  font-size: 12px;
  color: var(--muted);
}
.room-participants {
  display: flex;
  flex-direction: column;
  width: 100%;
  gap: 4px;
  min-width: 0;
  padding: 4px 0;
}
.room-participant {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 8px;
  border-radius: 10px;
  background: rgba(15, 23, 42, 0.04);
  font-size: 13px;
  color: var(--fg);
  transition: background var(--fast) var(--ease), color var(--fast) var(--ease);
}
.room-participant .room-participant-name {
  flex: 1 1 auto;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.room-participant-avatar {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--avatar-gradient);
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  color: #fff;
  font-size: 11px;
  font-weight: 600;
  display: grid;
  place-items: center;
  overflow: hidden;
  transition: transform var(--fast) var(--ease), box-shadow var(--fast) var(--ease);
}
.room-participant-avatar.has-image {
  color: transparent;
  background-color: transparent;
}
.room-participant-avatar:hover {
  transform: scale(3);
  box-shadow: 0 14px 32px rgba(0, 0, 0, 0.45);
  z-index: 4;
}
.room-participant.empty {
  justify-content: center;
  color: var(--muted);
  background: transparent;
}
.room-participant.speaking {
  background: rgba(37, 99, 235, 0.15);
  color: var(--accent);
}
.room-participant-controls {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-left: auto;
}
.room-participant-vol {
  -webkit-appearance: none;
  appearance: none;
  width: 100px;
  height: 6px;
  border-radius: 999px;
  background: var(--slider-track-bg);
  border: 1px solid var(--slider-track-border);
}
.room-participant-vol::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  border: none;
}
.room-participant-vol::-moz-range-thumb {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  border: none;
}
.room-participant-mute {
  padding: 4px 8px;
  border-radius: 8px;
  min-width: 34px;
}
.room-join {
  border-radius: 999px;
  padding: 8px 14px;
  font-weight: 600;
}
.quick-room.active {
  border-color: var(--accent);
  background: rgba(37, 99, 235, 0.08);
}
.quick-room.active .room-count { color: var(--accent); }
.quick-room.current {
  border-color: var(--accent-2);
  box-shadow: var(--button-primary-shadow);
}
.quick-room.joined {
  border-color: var(--accent-2);
  background: rgba(37, 99, 235, 0.12);
  box-shadow: var(--button-primary-shadow);
}
.quick-room.joined .room-count,
.quick-room.joined .room-name { color: var(--accent-2); }
.room-join.leave {
  background: var(--button-primary-bg);
  border-color: var(--button-primary-border);
  color: #fff;
  box-shadow: var(--button-primary-shadow);
}
.room-join.leave:hover {
  opacity: 0.9;
}
.quick-room.private {
  border-color: var(--danger);
  background: rgba(239, 68, 68, 0.12);
  box-shadow: 0 12px 28px rgba(239, 68, 68, 0.25);
}
.quick-room.private .room-name,
.quick-room.private .room-count {
  color: var(--danger);
}
.quick-room.private .room-participant-avatar:not(.has-image) {
  background: linear-gradient(135deg, #f87171, #ef4444);
}
.quick-room.private .room-join {
  background: linear-gradient(135deg, #f87171, #ef4444);
  border-color: transparent;
  color: #fff;
  box-shadow: 0 12px 28px rgba(239, 68, 68, 0.35);
}
.quick-room.private .room-join.leave {
  background: linear-gradient(135deg, #f87171, #ef4444);
}

.control-panel {
  display: grid;
  gap: 12px;
  align-content: start;
}
.control-card {
  background: var(--panel);
  border: 1px solid var(--card-border);
  border-radius: 24px;
  padding: clamp(16px, 3vw, 28px);
  box-shadow: var(--shadow);
  display: grid;
  gap: 16px;
}
.control-title { display: grid; gap: 4px; }
.control-label {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--accent);
  font-weight: 700;
}
.control-title p { margin: 0; color: var(--muted); font-size: 13px; }
.control-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: stretch;
}
.control-row.primary { flex-direction: column; }
.control-row.primary input { width: 100%; }
.control-row.secondary { justify-content: flex-start; }
.control-row.secondary button { flex: 1 1 160px; }
body.connected .control-card .control-title,
body.connected .control-card .control-row.primary,
body.connected #joinBtn {
  display: none;
}

.chat {
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: 10px;
  background: var(--panel);
  border: 1px solid var(--card-border);
  border-radius: 20px;
  box-shadow: var(--shadow);
  padding: 14px;
}
.chat-header { font-weight: 700; color: var(--fg); letter-spacing: .2px; display: flex; align-items: center; justify-content: space-between; }
.chat-header .presence { display: inline-flex; gap: 6px; align-items: center; font-size: 12px; color: var(--muted); }
.chat-header .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--chat-dot-bg); display: inline-block; box-shadow: 0 0 0 2px var(--chat-dot-ring); }
.chat.online .chat-header .dot { background: var(--ok); box-shadow: 0 0 0 2px var(--chat-dot-ring-online); }
.chat-messages {
  min-height: 180px;
  max-height: 40vh;
  overflow: auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-right: 2px;
}
.chat-input { display: grid; grid-template-columns: 1fr auto; gap: 8px; align-items: center; }
.chat-input input { border-radius: 999px; }
.chat-input button { border-radius: 999px; }
.chat-msg { display: grid; gap: 4px; padding: 8px 10px; border-radius: 12px; background: var(--chat-msg-bg); border: 1px solid var(--chat-msg-border); }
.chat-msg.me { background: var(--chat-msg-me-bg); border-color: var(--chat-msg-me-border); }
.chat-msg .meta { color: var(--muted); font-size: 12px; display: flex; gap: 8px; align-items: baseline; }
.chat-msg .text { white-space: pre-wrap; word-break: break-word; }
.chat-msg.system { background: transparent; border: 0; text-align: center; color: var(--muted); font-size: 12px; }

@media (max-width: 1024px) {
  .chat-messages { max-height: 32vh; }
}

button {
  cursor: pointer;
  border: 1px solid var(--button-border);
  background: var(--button-bg);
  color: var(--fg);
  padding: 11px 14px;
  border-radius: var(--radius-sm);
  transition: transform var(--fast) var(--ease), background var(--fast) var(--ease), border-color var(--fast) var(--ease), opacity .2s;
  box-shadow: var(--button-shadow);
  font-weight: 600;
}
button:hover { background: var(--button-hover-bg); border-color: var(--button-hover-border); transform: translateY(-1px); }
button:active { transform: translateY(0); }
button.primary {
  background: var(--button-primary-bg);
  border-color: var(--button-primary-border);
  color: #fff;
  box-shadow: var(--button-primary-shadow);
}
button.full-width, .full-width button {
  width: 100%;
}
button:disabled { opacity: 0.6; cursor: not-allowed; }

input[type="text"],
input[type="password"],
input[type="email"] {
  background: var(--input-bg);
  color: var(--fg);
  border: 1px solid var(--input-border);
  border-radius: var(--radius-sm);
  padding: 11px 14px;
  transition: border-color var(--fast) var(--ease), box-shadow var(--fast) var(--ease), background var(--fast) var(--ease);
}
input[type="text"]:focus,
input[type="password"]:focus,
input[type="email"]:focus {
  outline: none;
  border-color: var(--input-focus-border);
  box-shadow: var(--input-focus-shadow);
  background: var(--panel);
}

.tiles, .screens { display: none; gap: 12px; }
.tiles { grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); align-content: start; }
.screens { grid-template-columns: repeat(auto-fill, minmax(520px, 1fr)); display: block; }

.tile, .screen {
  background: var(--panel);
  border: 1px solid var(--tile-border);
  border-radius: var(--radius);
  padding: 8px;
  box-shadow: var(--shadow);
  transition: transform var(--normal) var(--ease), box-shadow var(--normal) var(--ease), border-color var(--fast) var(--ease);
}
.tile { position: relative; }
.tile:hover, .screen:hover { transform: translateY(-2px); box-shadow: var(--tile-hover-shadow); }
.tile-header {
  display: flex;
  gap: 10px;
  align-items: center;
  padding: 4px 2px 6px;
}
.tile-avatar {
  width: 36px;
  height: 36px;
  border-radius: 12px;
  background: var(--avatar-gradient);
  display: grid;
  place-items: center;
  overflow: hidden;
  font-weight: 700;
  font-size: 15px;
  color: #fff;
  flex-shrink: 0;
  transition: transform var(--fast) var(--ease), box-shadow var(--fast) var(--ease);
}
.tile-avatar:hover {
  transform: scale(3);
  box-shadow: 0 14px 32px rgba(0, 0, 0, 0.45);
  z-index: 5;
}
.tile-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.tile-avatar span {
  font-size: 15px;
}
.tile .name {
  color: var(--muted);
  font-size: 13px;
  text-overflow: ellipsis;
  white-space: nowrap;
  overflow: hidden;
}
.tile.speaking, .screen.speaking {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.35), var(--tile-hover-shadow);
}
.tile.speaking .name, .screen.speaking .name {
  color: var(--accent);
}

video, audio { width: 100%; height: auto; background: var(--video-bg); border-radius: 12px; display: block; }
video.fade-in { animation: media-in .25s var(--ease) both; }

.screen { position: relative; overflow: hidden; }
.tile .actions, .screen .actions {
  position: absolute;
  right: 10px;
  top: 10px;
  display: flex;
  gap: 8px;
  align-items: center;
  background: var(--action-bubble-bg);
  padding: 6px;
  border-radius: 999px;
  border: 1px solid var(--action-bubble-border);
  box-shadow: var(--action-bubble-shadow);
  opacity: 0;
  transform: translateY(-6px);
  transition: opacity var(--normal) var(--ease), transform var(--normal) var(--ease);
}
.screen:hover .actions, .tile:hover .actions { opacity: 1; transform: translateY(0); }
.icon-btn { background: var(--icon-btn-bg); border: 1px solid var(--icon-btn-border); color: var(--fg); padding: 6px 10px; border-radius: 999px; font-size: 13px; }
.icon-btn:hover { background: var(--icon-btn-hover-bg); }
.icon-btn.danger { background: var(--icon-btn-danger-bg); border-color: var(--icon-btn-danger-border); color: var(--icon-btn-danger-text); }

.actions .vol {
  -webkit-appearance: none;
  appearance: none;
  width: 120px;
  height: 6px;
  border-radius: 999px;
  background: var(--slider-track-bg);
  outline: none;
  border: 1px solid var(--slider-track-border);
}
.actions .vol::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  border: none;
}
.actions .vol::-moz-range-thumb {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  border: none;
}

.hint { color: var(--muted); font-size: 13px; }
.status {
  color: var(--fg);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  position: fixed;
  right: 16px;
  bottom: 16px;
  z-index: 50;
  background: var(--status-bg);
  border: 1px solid var(--status-border);
  border-radius: 12px;
  padding: 10px 12px;
  box-shadow: var(--status-shadow);
  pointer-events: none;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity var(--normal) var(--ease), transform var(--normal) var(--ease);
}
.status:not(:empty) { opacity: 1; transform: translateY(0); }

.rooms {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: grid;
  place-items: center;
  backdrop-filter: blur(10px) saturate(120%);
  background: var(--overlay-bg);
}
.rooms .panel {
  width: min(780px, 95vw);
  background: var(--panel);
  border: 1px solid var(--overlay-panel-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 16px;
  display: grid;
  gap: 12px;
  animation: pop-in .28s var(--ease) both;
}
.rooms .r-header { display: flex; align-items: center; justify-content: space-between; }
.rooms .r-header .title { font-weight: 800; }
.rooms .r-header .actions { display: flex; gap: 8px; }
.rooms .r-list { display: grid; gap: 10px; max-height: 60vh; overflow: auto; }
.rooms .r-empty { color: var(--muted); text-align: center; padding: 12px; }
.room-card {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 10px;
  align-items: center;
  background: var(--card-muted-bg);
  border: 1px solid var(--card-muted-border);
  border-radius: 12px;
  padding: 10px;
}
.room-card .meta { color: var(--muted); font-size: 12px; }
.room-card .actions { display: flex; gap: 8px; }

.gate {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: grid;
  place-items: center;
  backdrop-filter: blur(10px) saturate(120%);
  background: var(--overlay-bg);
  animation: fade-in .25s var(--ease) both;
}
.gate .panel {
  width: min(420px, 92vw);
  background: var(--panel);
  border: 1px solid var(--overlay-panel-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px;
  display: grid;
  gap: 12px;
  animation: pop-in .28s var(--ease) both;
}
.gate .title { font-weight: 700; }
.ghost,
a.ghost {
  border: 1px solid var(--ghost-border);
  background: transparent;
}
.ghost:hover,
a.ghost:hover { background: var(--ghost-hover-bg); }
.ghost:where(button),
.ghost:where(a) {
  border-radius: var(--radius-sm);
  padding: 10px 14px;
}
a.ghost {
  text-decoration: none;
  color: inherit;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
}
.ghost.danger {
  border-color: rgba(239, 68, 68, 0.5);
  color: var(--danger);
}
.ghost.danger:hover {
  background: rgba(239, 68, 68, 0.12);
}
.gate .row { display: grid; gap: 8px; }
.gate .err { color: var(--danger); min-height: 1em; }
.gate .actions { display: flex; gap: 8px; justify-content: flex-end; }

.appear { animation: pop-in .28s var(--ease) both; }
.leaving { animation: fade-out-down .2s var(--ease) forwards; }

.auth-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
.auth-shell {
  flex: 1;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  min-height: 0;
}
.auth-pane.hero {
  position: relative;
  padding: clamp(32px, 6vw, 64px);
  display: flex;
  align-items: flex-end;
  background: radial-gradient(circle at top left, rgba(88,139,255,.18), transparent 55%), var(--panel);
  border-right: 1px solid var(--card-border);
}
.auth-pane.hero::after {
  content: "";
  position: absolute;
  inset: 20px;
  border-radius: 32px;
  border: 1px solid rgba(255,255,255,.05);
  pointer-events: none;
}
.hero-inner {
  max-width: 420px;
  z-index: 1;
}
.auth-home-link {
  width: max-content;
  margin-bottom: 24px;
}
.hero-inner h1 {
  font-size: clamp(26px, 4vw, 40px);
  margin-bottom: 12px;
}
.auth-points {
  list-style: none;
  padding: 0;
  margin: 24px 0 0;
  display: grid;
  gap: 10px;
  color: var(--muted);
}
.auth-points li {
  display: flex;
  gap: 10px;
  align-items: center;
}
.auth-pane.card {
  padding: clamp(24px, 5vw, 60px);
  display: flex;
  align-items: center;
  justify-content: center;
}
.auth-card {
  width: min(420px, 100%);
  background: var(--panel);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: clamp(20px, 4vw, 32px);
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.auth-card-head .eyebrow {
  font-size: 12px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 6px;
}
.auth-card-head h2 {
  margin: 0 0 6px;
  font-size: 26px;
}
.auth-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.auth-form label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 13px;
  color: var(--muted);
}
.auth-form button {
  border-radius: 999px;
}
.auth-status {
  min-height: 18px;
  font-size: 13px;
  color: var(--danger);
}
.auth-status.success { color: var(--ok); }
.auth-card-foot {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 13px;
  color: var(--muted);
  text-align: center;
}
.auth-card-foot a {
  color: inherit;
  text-decoration: underline;
}

.profile-shell {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
.profile-main {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 16px;
}
.profile-page .topbar { position: sticky; top: 0; }
.profile-card {
  width: min(640px, 96vw);
  background: var(--panel);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 32px;
  display: grid;
  gap: 16px;
}
.profile-card .title {
  font-size: 26px;
  font-weight: 700;
}
.profile-head {
  display: flex;
  gap: 24px;
  align-items: center;
  flex-wrap: wrap;
}
.profile-avatar {
  width: 96px;
  height: 96px;
  border-radius: 32px;
  border: 1px solid var(--card-border);
  background: var(--avatar-gradient);
  display: grid;
  place-items: center;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow);
}
.profile-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.profile-avatar .fallback {
  font-size: 36px;
  font-weight: 700;
  color: #fff;
}
.profile-avatar label {
  position: absolute;
  inset: auto 8px 8px;
  background: rgba(0,0,0,0.6);
  color: #fff;
  font-size: 11px;
  padding: 4px 8px;
  border-radius: 999px;
  cursor: pointer;
}
.profile-summary .eyebrow {
  text-transform: uppercase;
  letter-spacing: .12em;
  font-size: 11px;
  color: var(--muted);
}
.profile-summary h1 {
  margin: 6px 0;
  font-size: 28px;
}
.profile-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.profile-avatar-controls {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  padding: 12px 0;
  border-top: 1px solid var(--card-border);
  border-bottom: 1px solid var(--card-border);
}
.profile-avatar-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.profile-audio {
  display: grid;
  gap: 8px;
  padding: 14px 0;
  border-bottom: 1px solid var(--card-border);
}
.profile-audio-meta span {
  font-weight: 600;
}
.profile-audio-body {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.profile-audio-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.profile-audio-actions button {
  flex: 0 0 auto;
}
.profile-audio-body audio {
  width: 100%;
  border-radius: var(--radius);
  background: var(--panel);
}
.profile-status {
  min-height: 18px;
  font-size: 13px;
}
.profile-meta {
  display: grid;
  gap: 6px;
  font-size: 15px;
}
.profile-meta-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 12px;
}
.profile-meta-grid > div {
  padding: 8px 0;
  border-bottom: 1px solid var(--card-border);
}
.profile-meta-grid strong {
  font-size: 18px;
}
.profile-meta-grid span { color: var(--muted); font-size: 12px; }
.profile-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.profile-actions a,
.profile-actions button {
  flex: 1;
  text-align: center;
  border-radius: 999px;
}
.muted { color: var(--muted); }
.full-width { width: 100%; }

@media (max-width: 900px) {
  .auth-shell {
    grid-template-columns: minmax(0, 1fr);
  }
  .auth-pane.hero {
    border-right: none;
    border-bottom: 1px solid var(--card-border);
    align-items: flex-start;
  }
  .auth-card {
    width: 100%;
  }
  .profile-head {
    flex-direction: column;
    align-items: flex-start;
  }
  .profile-avatar {
    width: 84px;
    height: 84px;
  }
}

@keyframes pop-in {
  from { opacity: 0; transform: translateY(10px) scale(.98); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}
@keyframes fade-out-down {
  from { opacity: 1; transform: translateY(0); }
  to { opacity: 0; transform: translateY(6px); }
}
@keyframes media-in {
  from { opacity: 0; filter: blur(4px); }
  to { opacity: 1; filter: blur(0); }
}
@keyframes fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

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