:root {
  color-scheme: dark;
  --bg: #0b0f14;
  --surface: #111820;
  --surface-2: #17212b;
  --surface-3: #1d2935;
  --text: #f4f7fb;
  --muted: #94a3b8;
  --line: rgba(255, 255, 255, 0.1);
  --cyan: #25d0c8;
  --blue: #6d7cff;
  --red: #ff5e70;
  --green: #48d597;
  --shadow: 0 24px 90px rgba(0, 0, 0, 0.38);
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
}

body {
  background:
    radial-gradient(circle at 18% 18%, rgba(37, 208, 200, 0.16), transparent 26%),
    radial-gradient(circle at 82% 12%, rgba(109, 124, 255, 0.14), transparent 24%),
    var(--bg);
  color: var(--text);
  margin: 0;
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  border: 0;
  cursor: pointer;
}

input,
select,
textarea {
  background: rgba(255, 255, 255, 0.055);
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--text);
  min-height: 42px;
  outline: none;
  padding: 10px 12px;
  width: 100%;
}

textarea {
  min-height: 96px;
  resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
  border-color: rgba(37, 208, 200, 0.75);
}

label {
  color: var(--muted);
  display: grid;
  font-size: 0.88rem;
  gap: 8px;
}

.app-frame {
  margin: 0 auto;
  max-width: 1540px;
  min-height: 100vh;
  padding: 18px;
}

.topbar {
  align-items: center;
  display: flex;
  gap: 16px;
  justify-content: space-between;
  margin: 0 auto 18px;
}

.brand,
.top-actions button,
.back-link {
  align-items: center;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--text);
  display: inline-flex;
  gap: 10px;
  min-height: 40px;
  padding: 9px 13px;
}

.back-link {
  justify-self: start;
}

.brand {
  background: transparent;
  border: 0;
  font-weight: 900;
  font-size: 1.18rem;
  padding-left: 0;
}

.brand-icon {
  align-items: center;
  background: linear-gradient(135deg, var(--cyan), var(--blue));
  border-radius: 8px;
  color: #081012;
  display: inline-flex;
  font-size: 1.4rem;
  height: 34px;
  justify-content: center;
  width: 42px;
}

.top-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: flex-end;
}

.primary,
.ghost-wide,
.wide {
  background: linear-gradient(135deg, var(--cyan), var(--blue));
  border-radius: 8px;
  color: #061114;
  font-weight: 900;
}

.primary,
.wide {
  min-height: 42px;
  padding: 10px 16px;
}

.view {
  display: none;
}

.view.active {
  display: block;
}

.call-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: minmax(0, 1fr) 360px;
  height: calc(100vh - 92px);
  min-height: 0;
  min-width: 0;
}

.stage,
.chat-panel,
.glass-panel {
  background: rgba(17, 24, 32, 0.86);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.card-title,
.stats-strip,
.room-top,
.chat-head {
  align-items: center;
  display: flex;
  justify-content: space-between;
  gap: 12px;
}

.card-title span {
  color: var(--muted);
}

.card-title strong {
  color: var(--green);
}

.field-row {
  display: grid;
  gap: 10px;
  grid-template-columns: 0.8fr 1.2fr;
}

.check-line {
  align-items: start;
  display: grid;
  gap: 8px;
  grid-template-columns: 18px 1fr;
}

.check-line input {
  min-height: 18px;
}

.stage {
  display: grid;
  gap: 14px;
  grid-template-rows: minmax(0, 1fr) auto auto;
  min-height: 0;
  min-width: 0;
  padding: 14px;
}

.video-pair {
  display: grid;
  gap: 10px;
  grid-template-columns: 1fr 1fr;
  min-height: 0;
  min-width: 0;
}

.video-card {
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.015)),
    #070b10;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  position: relative;
  min-height: 0;
  min-width: 0;
}

.video-card video {
  display: block;
  height: 100%;
  object-fit: cover;
  width: 100%;
}

.local-pane video {
  opacity: 0;
  transition: opacity 0.2s ease;
}

.local-pane.has-video video {
  opacity: 1;
}

.local-pane.is-active .local-empty {
  display: none;
}

.video-empty {
  align-items: center;
  color: var(--muted);
  display: flex;
  flex-direction: column;
  inset: 0;
  justify-content: center;
  padding: 24px;
  position: absolute;
  text-align: center;
  z-index: 1;
}

.video-empty strong {
  color: var(--text);
  font-size: 1.3rem;
}

.video-empty small {
  line-height: 1.5;
  margin-top: 8px;
}

.pulse-logo {
  align-items: center;
  background: linear-gradient(135deg, var(--cyan), var(--blue));
  border-radius: 18px;
  color: #071114;
  display: inline-flex;
  font-weight: 900;
  height: 74px;
  justify-content: center;
  margin-bottom: 14px;
  width: 74px;
}

.video-label {
  background: rgba(6, 10, 15, 0.72);
  border: 1px solid var(--line);
  border-radius: 8px;
  left: 12px;
  padding: 7px 10px;
  position: absolute;
  top: 12px;
}

.video-label.stranger {
  color: var(--cyan);
}

.safety-note {
  align-items: center;
  background: rgba(255, 255, 255, 0.055);
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--muted);
  display: grid;
  gap: 12px;
  grid-template-columns: auto minmax(0, 1fr) auto;
  padding: 10px 12px;
}

.safety-note span {
  color: var(--cyan);
  font-weight: 800;
}

.safety-note p {
  margin: 0;
}

.safety-note button {
  background: transparent;
  color: var(--cyan);
}

.call-controls {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.call-controls button {
  align-items: center;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--text);
  display: flex;
  flex-direction: column;
  font-size: 0.9rem;
  font-weight: 700;
  gap: 8px;
  justify-content: center;
  min-height: 72px;
  padding: 12px 8px;
  transition: background 0.18s ease, border-color 0.18s ease, transform 0.18s ease;
}

.call-controls button:hover {
  background: rgba(255, 255, 255, 0.09);
  border-color: rgba(255, 255, 255, 0.18);
  transform: translateY(-1px);
}

.call-controls svg {
  fill: none;
  height: 26px;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2.2;
  width: 26px;
}

.call-controls button:nth-child(2) {
  color: var(--cyan);
}

.call-controls .control-start,
.danger {
  background: rgba(72, 213, 151, 0.16);
  border-color: rgba(72, 213, 151, 0.28);
  color: var(--green);
  font-weight: 900;
}

.call-controls .control-start:hover {
  background: rgba(72, 213, 151, 0.22);
}

.call-controls .control-start .icon-end {
  display: none;
}

.call-controls .control-start.is-running {
  background: rgba(255, 94, 112, 0.78);
  border-color: rgba(255, 94, 112, 0.34);
  color: #fff;
}

.call-controls .control-start.is-running:hover {
  background: rgba(255, 94, 112, 0.9);
}

.call-controls .control-start.is-running .icon-start {
  display: none;
}

.call-controls .control-start.is-running .icon-end {
  display: block;
}

.chat-panel {
  display: grid;
  grid-template-rows: auto auto minmax(0, 1fr) auto;
  min-height: 0;
  overflow: hidden;
  min-width: 0;
}

.chat-tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  padding: 10px;
}

.chat-tabs button {
  background: transparent;
  border-radius: 8px;
  color: var(--muted);
  min-height: 38px;
}

.chat-tabs button.active {
  background: rgba(37, 208, 200, 0.12);
  color: var(--cyan);
}

.chat-head {
  border-bottom: 1px solid var(--line);
  padding: 12px 14px;
}

.chat-head span {
  color: var(--muted);
  display: block;
  font-size: 0.84rem;
  margin-top: 3px;
}

.messages {
  display: flex;
  flex-direction: column;
  gap: 9px;
  overflow-y: auto;
  padding: 14px;
}

.message,
.system-message {
  border-radius: 8px;
  padding: 10px 11px;
}

.message {
  align-self: flex-start;
  background: rgba(255, 255, 255, 0.075);
  border: 1px solid var(--line);
  max-width: 88%;
}

.message strong {
  color: var(--cyan);
  display: block;
  font-size: 0.78rem;
  margin-bottom: 4px;
}

.system-message {
  background: rgba(37, 208, 200, 0.1);
  color: var(--muted);
  line-height: 1.45;
}

.chat-form {
  border-top: 1px solid var(--line);
  display: grid;
  gap: 8px;
  grid-template-columns: minmax(0, 1fr) auto;
  padding: 12px;
}

.chat-form button {
  background: var(--cyan);
  border-radius: 8px;
  color: #061114;
  font-weight: 900;
  padding: 0 14px;
}

.panel-grid,
.room-grid {
  display: grid;
  gap: 16px;
}

.panel-grid {
  grid-template-columns: minmax(300px, 500px) minmax(300px, 500px);
  justify-content: center;
  padding: clamp(22px, 5vh, 58px) clamp(10px, 4vw, 48px);
}

.room-grid {
  grid-template-columns: minmax(0, 1fr) 300px 360px;
  min-height: calc(100vh - 92px);
}

.glass-panel {
  padding: 22px;
}

#privateSetup .panel-grid {
  align-items: start;
  max-width: 1120px;
  margin: 0 auto;
  padding-bottom: 72px;
}

#privateSetup .glass-panel {
  display: grid;
  gap: 16px;
}

#privateSetup .glass-panel h2 {
  font-size: clamp(1.45rem, 2vw, 2rem);
  margin: 4px 0 0;
}

#privateSetup .glass-panel .muted {
  line-height: 1.55;
  margin: -4px 0 4px;
}

#privateSetup label {
  gap: 9px;
}

#privateSetup input,
#privateSetup select,
#privateSetup textarea {
  background: rgba(255, 255, 255, 0.07);
  min-height: 46px;
}

#privateSetup textarea {
  min-height: 96px;
}

#privateSetup .wide {
  margin-top: 4px;
}

.glass-panel h2,
.glass-panel h3 {
  margin: 0 0 12px;
}

.muted,
.waiting-text {
  color: var(--muted);
}

.wide {
  width: 100%;
}

.room-main {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
}

.invite-line {
  background: rgba(255, 255, 255, 0.055);
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--cyan);
  padding: 9px 10px;
}

.private-videos {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  min-height: 360px;
  overflow-y: auto;
}

.peer-tile {
  aspect-ratio: 16 / 10;
  background: #070b10;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  position: relative;
}

.peer-tile video {
  height: 100%;
  object-fit: cover;
  width: 100%;
}

.peer-tile span {
  background: rgba(6, 10, 15, 0.72);
  border-radius: 8px;
  left: 10px;
  padding: 6px 8px;
  position: absolute;
  top: 10px;
}

.list {
  display: grid;
  gap: 8px;
}

.list-item,
.admin-section {
  background: rgba(255, 255, 255, 0.055);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px;
}

.list-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 8px;
}

.list-actions button,
.small {
  border-radius: 8px;
  min-height: 32px;
  padding: 6px 9px;
}

.secondary {
  background: rgba(255, 255, 255, 0.075);
  color: var(--text);
}

.readable {
  line-height: 1.75;
  margin: 46px auto;
  max-width: 760px;
}

.admin-overview {
  display: grid;
  gap: 10px;
}

.error {
  color: var(--red);
  margin: 0;
  min-height: 18px;
}

.toast {
  background: #101820;
  border: 1px solid var(--line);
  border-radius: 8px;
  bottom: 18px;
  box-shadow: var(--shadow);
  color: var(--text);
  left: 50%;
  max-width: min(520px, calc(100vw - 24px));
  opacity: 0;
  padding: 12px 14px;
  pointer-events: none;
  position: fixed;
  transform: translate(-50%, 12px);
  transition: 0.2s ease;
  z-index: 40;
}

.toast.show {
  opacity: 1;
  transform: translate(-50%, 0);
}

@media (max-width: 1180px) {
  .call-grid,
  .room-grid {
    height: auto;
    grid-template-columns: 1fr;
  }

  .video-pair {
    min-height: 520px;
  }

  .chat-panel {
    min-height: 420px;
  }
}

@media (max-width: 760px) {
  .app-frame {
    padding: 10px;
  }

  .topbar {
    align-items: stretch;
    flex-direction: column;
  }

  .top-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }

  .brand {
    justify-content: center;
  }

  .video-pair,
  .panel-grid {
    grid-template-columns: 1fr;
  }

  .video-pair {
    min-height: 0;
  }

  .video-card {
    min-height: clamp(220px, 38vh, 320px);
  }

  .call-controls {
    gap: 8px;
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .call-controls button {
    font-size: 0.78rem;
    gap: 6px;
    min-height: 64px;
    padding: 8px 4px;
  }

  .call-controls svg {
    height: 22px;
    width: 22px;
  }

  .safety-note {
    grid-template-columns: 1fr;
    font-size: 0.88rem;
    gap: 8px;
  }

  .field-row {
    grid-template-columns: 1fr;
  }

  .chat-form {
    grid-template-columns: 1fr;
  }

  .chat-panel {
    min-height: 360px;
  }
}

@media (max-width: 430px) {
  .top-actions {
    grid-template-columns: 1fr;
  }

  .brand {
    font-size: 1rem;
  }

  .video-card {
    min-height: 210px;
  }

  .safety-note p {
    line-height: 1.4;
  }
}

.hidden-session {
  display: none;
}