:root {
  --bg: #0a0a0f;
  --surface: #14141f;
  --surface-2: #1b1b2b;
  --border: rgba(255, 255, 255, 0.08);
  --text: #e2e8f0;
  --muted: #94a3b8;
  --accent: #6366f1;
  --danger: #ef4444;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  width: 100%;
  min-height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

#app {
  min-height: 100vh;
}

.view {
  display: none;
  min-height: 100vh;
}

.view.active {
  display: flex;
}

#landing {
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.landing-card {
  width: 100%;
  max-width: 520px;
  background: linear-gradient(160deg, rgba(99, 102, 241, 0.08), rgba(20, 20, 31, 0.95));
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 48px 32px;
  text-align: center;
  box-shadow: 0 16px 60px rgba(0, 0, 0, 0.35);
}

.brand {
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(226, 232, 240, 0.76);
  font-size: 0.8rem;
  margin-bottom: 18px;
}

h1 {
  margin: 0;
  font-size: 2rem;
}

p {
  color: var(--muted);
  margin: 14px 0 24px;
}

.primary-btn,
.secondary-btn {
  border: none;
  border-radius: 999px;
  padding: 12px 18px;
  font-weight: 600;
  cursor: pointer;
}

.primary-btn {
  background: var(--accent);
  color: white;
}

.secondary-btn {
  background: var(--surface-2);
  color: var(--text);
  border: 1px solid var(--border);
}

.secondary-btn.active-danger {
  background: rgba(239, 68, 68, 0.2);
  border-color: rgba(239, 68, 68, 0.45);
  color: #fecaca;
}

#callView {
  flex-direction: column;
  padding: 14px;
  gap: 12px;
}

.topbar {
  display: grid;
  grid-template-columns: 1fr 1.8fr auto;
  gap: 12px;
  align-items: center;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 10px 14px;
}

.room-label {
  font-size: 0.85rem;
  color: var(--muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 320px;
}

.room-share {
  display: flex;
  gap: 8px;
}

.room-share input {
  width: 100%;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #0f0f18;
  color: var(--text);
  padding: 10px 12px;
}

.participant-count {
  color: var(--muted);
  font-size: 0.9rem;
}

.video-grid {
  flex: 1;
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  align-content: start;
}

.jitsi-wrap {
  flex: 1;
  min-height: 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
}

#jitsiContainer {
  width: 100%;
  height: calc(100vh - 140px);
  min-height: 520px;
}

.participant-tile {
  position: relative;
  min-height: 180px;
  max-height: 34vh;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.participant-tile video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  background: #09090f;
}

.avatar-placeholder {
  width: 74px;
  height: 74px;
  border-radius: 999px;
  background: rgba(99, 102, 241, 0.2);
  color: #c7d2fe;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  font-weight: 700;
  border: 1px solid rgba(99, 102, 241, 0.4);
}

.tile-meta {
  position: absolute;
  left: 10px;
  bottom: 10px;
  font-size: 0.85rem;
  background: rgba(10, 10, 15, 0.6);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px 9px;
  z-index: 2;
}

.name-edit-input {
  background: rgba(10, 10, 15, 0.9);
  border: 1px solid var(--accent);
  border-radius: 6px;
  color: var(--text);
  font-size: 0.85rem;
  padding: 2px 6px;
  width: 120px;
  outline: none;
}

.fullscreen-btn {
  position: absolute;
  top: 8px;
  right: 8px;
  width: 32px;
  height: 32px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: rgba(10, 10, 15, 0.75);
  color: var(--text);
  font-size: 1.1rem;
  cursor: pointer;
  opacity: 1;
  z-index: 5;
}

.participant-tile:fullscreen {
  background: #000;
}

.participant-tile:fullscreen video {
  object-fit: contain;
  width: 100%;
  height: 100%;
}

.participant-tile:fullscreen .fullscreen-btn {
  opacity: 1;
  position: fixed;
  top: 16px;
  right: 16px;
}

.settings-panel {
  position: fixed;
  right: 14px;
  bottom: 92px;
  width: min(360px, calc(100vw - 28px));
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.42);
  z-index: 50;
}

.settings-panel[aria-hidden="true"] {
  display: none;
}

.settings-panel h3 {
  margin: 0 0 14px;
}

.settings-panel label {
  display: block;
  font-size: 0.88rem;
  margin-bottom: 12px;
}

.settings-panel select {
  width: 100%;
  margin-top: 6px;
  border-radius: 10px;
  border: 1px solid var(--border);
  padding: 10px;
  background: #0f0f18;
  color: var(--text);
}

.notice {
  color: #fbbf24;
  font-size: 0.84rem;
  margin: 10px 0 0;
}

.hidden {
  display: none !important;
}

.controls {
  position: sticky;
  bottom: 10px;
  margin: 0 auto;
  background: rgba(20, 20, 31, 0.86);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 8px;
  display: flex;
  gap: 8px;
  backdrop-filter: blur(8px);
}

.control-btn {
  width: 44px;
  height: 44px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text);
  font-size: 1.15rem;
  cursor: pointer;
}

.control-btn.active {
  background: var(--accent);
  border-color: rgba(99, 102, 241, 0.5);
}

.control-btn.danger {
  background: rgba(239, 68, 68, 0.2);
  border-color: rgba(239, 68, 68, 0.4);
  color: #fecaca;
}

.status-toast {
  position: fixed;
  left: 50%;
  top: 20px;
  transform: translateX(-50%);
  background: #111827;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 14px;
  color: var(--text);
  z-index: 100;
}

.audio-main {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 12px;
}

.devices-card,
.status-card,
.participants-card {
  background: linear-gradient(180deg, rgba(27, 27, 43, 0.7), rgba(20, 20, 31, 1));
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px;
}

.devices-card h3,
.status-card h3,
.participants-card h3 {
  margin-top: 0;
}

.devices-card label {
  display: block;
  margin-bottom: 12px;
  font-size: 0.9rem;
}

.devices-card select {
  width: 100%;
  margin-top: 6px;
  border-radius: 10px;
  border: 1px solid var(--border);
  padding: 10px;
  background: #0f0f18;
  color: var(--text);
}

.audio-processing {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 10px;
  margin: 8px 0 4px;
  background: rgba(16, 22, 40, 0.45);
}

.audio-processing-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}

.processing-note {
  margin: 0;
  color: var(--muted);
  font-size: 0.82rem;
}

#remoteAudioMount audio {
  display: none;
}

.participants-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.participants-meta {
  color: var(--muted);
  font-size: 0.82rem;
}

.participants-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 10px;
}

.participant-card {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px;
  background: rgba(11, 16, 32, 0.55);
}

.participant-card-local {
  border-color: rgba(99, 102, 241, 0.4);
  background: rgba(99, 102, 241, 0.08);
}

.participant-card-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}

.participant-card-head span {
  color: var(--muted);
  font-size: 0.8rem;
}

.participant-card-body {
  font-size: 0.88rem;
}

.participant-card-body.muted {
  color: var(--muted);
}

.participant-controls {
  display: grid;
  gap: 10px;
}

.participant-mute-btn {
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text);
  border-radius: 10px;
  padding: 8px 10px;
  font-weight: 600;
  cursor: pointer;
}

.participant-mute-btn.active {
  border-color: rgba(239, 68, 68, 0.5);
  background: rgba(239, 68, 68, 0.2);
}

.participant-volume-wrap {
  color: var(--muted);
  font-size: 0.82rem;
}

.participant-volume-row {
  margin-top: 6px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
  align-items: center;
}

.participant-volume-row input[type="range"] {
  width: 100%;
}

.participant-volume-value {
  font-size: 0.78rem;
  color: var(--text);
  min-width: 44px;
  text-align: right;
}

.screen-mount {
  display: grid;
  gap: 10px;
  margin-top: 10px;
}

.screen-tile {
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  background: #0f0f18;
}

.screen-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
}

.screen-title {
  font-size: 0.8rem;
  color: var(--muted);
}

.screen-fs-btn {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface-2);
  color: var(--text);
  padding: 6px 10px;
  cursor: pointer;
  font-size: 0.8rem;
}

.screen-tile video {
  width: 100%;
  max-height: 360px;
  object-fit: contain;
  background: #000;
}

.screen-tile:fullscreen {
  background: #000;
}

.screen-tile:fullscreen video {
  width: 100%;
  height: calc(100vh - 44px);
  max-height: none;
}

.chat-card {
  background: linear-gradient(180deg, rgba(27, 27, 43, 0.7), rgba(20, 20, 31, 1));
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px;
}

.chat-header {
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 8px;
}

.chat-messages {
  max-height: 220px;
  overflow-y: auto;
  display: grid;
  gap: 8px;
}

.chat-message {
  padding: 7px 9px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: rgba(15, 20, 36, 0.45);
}

.chat-message.self {
  border-color: rgba(99, 102, 241, 0.45);
  background: rgba(99, 102, 241, 0.12);
}

.chat-meta {
  font-size: 0.72rem;
  color: var(--muted);
  margin-bottom: 2px;
}

.chat-body {
  font-size: 0.88rem;
  line-height: 1.35;
  white-space: pre-wrap;
}

.chat-form {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
  margin-top: 10px;
}

.chat-form input {
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #0f0f18;
  color: var(--text);
  padding: 9px 10px;
}

@media (max-width: 860px) {
  .topbar {
    grid-template-columns: 1fr;
  }

  .participant-tile {
    min-height: 150px;
    max-height: none;
  }
}