:root {
  --bg-main: #0a0e27;
  --bg-secondary: #1a1f3a;
  --panel: #2d3a5e;
  --panel-light: #e8eaf6;
  --accent: #6c8eff;
  --accent-strong: #4a6eff;
  --accent-glow: rgba(108, 142, 255, 0.3);
  --danger: #ff6b6b;
  --success: #51cf66;
  --text-main: #ffffff;
  --text-secondary: #b8c5e8;
  --text-muted: #7a8bb8;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  min-height: 100vh;
  background: linear-gradient(135deg, #0a0e27 0%, #1a1f3a 50%, #0f1629 100%);
  color: var(--text-main);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  overflow-x: hidden;
  position: relative;
}

/* Анимированный фон с градиентами */
.background-aurora {
  position: fixed;
  inset: 0;
  background: 
    radial-gradient(circle at 20% 30%, rgba(108, 142, 255, 0.15) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(255, 107, 107, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 50% 50%, rgba(81, 207, 102, 0.08) 0%, transparent 60%);
  animation: aurora 20s ease-in-out infinite;
  pointer-events: none;
  z-index: 0;
}

@keyframes aurora {
  0%, 100% {
    transform: translate(0, 0) scale(1);
    opacity: 1;
  }
  33% {
    transform: translate(30px, -30px) scale(1.1);
    opacity: 0.8;
  }
  66% {
    transform: translate(-20px, 20px) scale(0.9);
    opacity: 0.9;
  }
}

.background-noise {
  position: fixed;
  inset: 0;
  background-image: 
    repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(255, 255, 255, 0.01) 2px, rgba(255, 255, 255, 0.01) 4px);
  pointer-events: none;
  z-index: 1;
  opacity: 0.3;
}

.app-root {
  position: relative;
  z-index: 2;
  width: 100vw;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Topbar */
.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 40px;
  background: rgba(26, 31, 58, 0.6);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  position: sticky;
  top: 0;
  z-index: 100;
}

.brand {
  display: flex;
  align-items: center;
  gap: 16px;
}

.brand-logo {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 20px;
  color: white;
  box-shadow: 0 8px 24px var(--accent-glow);
}

.brand-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-main);
}

.brand-sub {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 2px;
}

.copy-id-btn {
  padding: 6px 12px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: var(--text-main);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  display: none;
  align-items: center;
  justify-content: center;
  white-space: nowrap;
}

.copy-id-btn:hover {
  background: rgba(255, 255, 255, 0.15);
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.copy-id-btn.copied {
  background: linear-gradient(135deg, var(--success), #40c057);
  border-color: var(--success);
  box-shadow: 0 2px 8px rgba(81, 207, 102, 0.3);
}

.top-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-secondary);
  font-size: 14px;
}

.top-actions.link-back {
  cursor: pointer;
  padding: 8px 16px;
  border-radius: 8px;
  transition: all 0.2s ease;
}

.top-actions.link-back:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-main);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 8px var(--success);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.7;
    transform: scale(1.2);
  }
}

/* Glass эффект */
.glass {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 
    0 8px 32px rgba(0, 0, 0, 0.3),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.glass-tile {
  background: rgba(255, 255, 255, 0.03);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

/* Главный экран */
.main-screen {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 20px;
  min-height: calc(100vh - 88px);
}

.hero {
  max-width: 1200px;
  width: 100%;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-content {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.eyebrow {
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.hero-content h1 {
  font-size: clamp(32px, 5vw, 56px);
  font-weight: 700;
  line-height: 1.2;
  background: linear-gradient(135deg, var(--text-main) 0%, var(--text-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.lede {
  font-size: 18px;
  line-height: 1.6;
  color: var(--text-secondary);
  max-width: 540px;
}

.cta-row {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 8px;
}

/* Кнопки */
.btn {
  padding: 14px 32px;
  border-radius: 12px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: white;
  box-shadow: 0 4px 16px var(--accent-glow);
}

.btn-primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--accent-strong), var(--accent));
  opacity: 0;
  transition: opacity 0.3s ease;
}

.btn-primary:hover::before {
  opacity: 1;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px var(--accent-glow);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-primary span {
  position: relative;
  z-index: 1;
}

.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-main);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

.hero-panel {
  padding: 32px;
  border-radius: 20px;
}

.hero-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-bottom: 20px;
}

.hero-tile {
  padding: 20px;
  background: rgba(255, 255, 255, 0.03);
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.05);
  text-align: center;
}

.tile-label {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.tile-value {
  font-size: 20px;
  font-weight: 700;
  color: var(--accent);
}

.hero-note {
  font-size: 13px;
  color: var(--text-muted);
  text-align: center;
  line-height: 1.5;
}

/* Регистрация */
.register-screen {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 20px;
  min-height: calc(100vh - 88px);
}

.auth-card {
  max-width: 480px;
  width: 100%;
  padding: 40px;
  border-radius: 24px;
  margin: 0 auto;
}

.auth-header {
  text-align: center;
  margin-bottom: 32px;
}

.auth-header h2 {
  font-size: 28px;
  font-weight: 700;
  margin: 12px 0;
  color: var(--text-main);
}

.form-group {
  margin-bottom: 24px;
}

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.input-shell {
  position: relative;
}

.input-shell input {
  width: 100%;
  padding: 14px 18px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  color: var(--text-main);
  font-size: 16px;
  transition: all 0.3s ease;
}

.input-shell input:focus {
  outline: none;
  border-color: var(--accent);
  background: rgba(255, 255, 255, 0.08);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.input-shell input::placeholder {
  color: var(--text-muted);
}

.media-row {
  display: flex;
  gap: 16px;
  justify-content: center;
  align-items: center;
  margin: 32px 0;
}

.media-row--compact {
  margin: 24px 0;
}

.media-button {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.3s ease;
}

.media-button svg {
  width: 28px;
  height: 28px;
  stroke: var(--text-secondary);
  transition: stroke 0.3s ease;
}

.media-button:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

.media-button.active {
  background: linear-gradient(135deg, var(--success), #40c057);
  border-color: var(--success);
  box-shadow: 0 4px 16px rgba(81, 207, 102, 0.3);
}

.media-button.active svg {
  stroke: white;
}

.media-control-group {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  position: relative;
}

.camera-preview-container {
  width: 200px;
  height: 150px;
  border-radius: 12px;
  overflow: hidden;
  background: rgba(0, 0, 0, 0.3);
  border: 2px solid rgba(255, 255, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
}

.camera-preview-container.hidden {
  display: none;
}

.camera-preview-container video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.mic-volume-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  min-width: 150px;
  transition: all 0.3s ease;
}

.mic-volume-container.hidden {
  display: none;
}

.volume-slider {
  width: 100%;
  height: 6px;
  border-radius: 3px;
  background: rgba(255, 255, 255, 0.2);
  outline: none;
  -webkit-appearance: none;
  appearance: none;
}

.volume-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.volume-slider::-moz-range-thumb {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  border: none;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.volume-label {
  font-size: 11px;
  color: var(--text-muted);
  text-align: center;
}

.hint {
  font-size: 12px;
  color: var(--text-muted);
  text-align: center;
  margin-top: 8px;
}

.reg-footer {
  margin-top: 32px;
}

.reg-footer .btn {
  width: 100%;
}

/* Комната */
.room-root {
  height: 100vh;
  overflow: hidden;
}

.room-screen {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.top-banner {
  padding: 12px 24px;
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
  font-size: 14px;
  color: var(--text-secondary);
}

.room-layout {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: 20px;
  gap: 20px;
  overflow: hidden;
}

.room-view-default {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.room-row {
  flex: 1;
  display: flex;
  gap: 20px;
  min-height: 0;
  transition: all 0.3s ease;
  justify-content: center;
  align-items: center;
}

/* Состояние когда один участник - по центру с фиксированным размером */
.room-row--single {
  gap: 0;
}

.room-row--single .room-participant--me {
  flex: 0 0 auto;
  max-width: 800px;
  max-height: 600px;
  width: 100%;
  aspect-ratio: 16 / 9;
}

.room-participant {
  flex: 0 0 auto;
  max-width: 800px;
  max-height: 600px;
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: 16px;
  overflow: hidden;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 200px;
  transition: all 0.3s ease;
}

/* Полноэкранный режим для одного участника */
.room-participant--fullscreen {
  flex: 1;
  width: 100%;
  border-radius: 0;
  min-height: 100%;
}

.room-participant video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: absolute;
  inset: 0;
}

.room-participant--me {
  border: 2px solid var(--success);
  box-shadow: 0 0 20px rgba(81, 207, 102, 0.3);
}

.room-name {
  position: absolute;
  bottom: 12px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(10px);
  padding: 6px 12px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  z-index: 10;
}

.participant-me-large,
.participant-guest-large {
  min-height: 300px;
}

/* Чат */
.room-view-chat {
  flex: 1;
  display: flex;
  gap: 20px;
  min-height: 0;
}

.participants-column {
  display: flex;
  flex-direction: column;
  gap: 20px;
  flex: 0 0 320px;
  justify-content: center;
  align-items: center;
}

.participants-column .room-participant--me {
  flex: 0 0 auto;
  max-width: 600px;
  max-height: 450px;
  width: 100%;
  aspect-ratio: 16 / 9;
}

.participant-guest-small {
  min-height: 200px;
}

.chat-panel {
  flex: 1;
  display: flex;
  flex-direction: column;
  border-radius: 16px;
  overflow: hidden;
  min-height: 0;
}

.chat-header {
  padding: 16px 20px;
  background: rgba(255, 255, 255, 0.05);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  font-weight: 600;
  font-size: 16px;
}

.chat-messages {
  flex: 1;
  padding: 20px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.chat-message {
  max-width: 75%;
  padding: 12px 16px;
  border-radius: 16px;
  font-size: 14px;
  line-height: 1.5;
  animation: messageSlide 0.3s ease;
}

@keyframes messageSlide {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.chat-message--guest {
  align-self: flex-start;
  background: rgba(255, 255, 255, 0.08);
  border-bottom-left-radius: 4px;
}

.chat-message--me {
  align-self: flex-end;
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  border-bottom-right-radius: 4px;
}

.chat-author {
  font-size: 12px;
  opacity: 0.7;
  margin-bottom: 4px;
  font-weight: 600;
}

.chat-input-row {
  padding: 16px 20px;
  background: rgba(255, 255, 255, 0.05);
  display: flex;
  gap: 12px;
  align-items: center;
}

.chat-input-row input {
  flex: 1;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  color: var(--text-main);
  font-size: 14px;
  outline: none;
  transition: all 0.3s ease;
}

.chat-input-row input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.chat-input-row input::placeholder {
  color: var(--text-muted);
}

.chat-send-btn {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  border: none;
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: white;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
}

.chat-send-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 16px var(--accent-glow);
}

.chat-send-btn svg {
  width: 20px;
  height: 20px;
}

/* Демонстрация экрана */
.room-view-screen {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.screen-main {
  flex: 1;
  min-height: 400px;
  position: relative;
  border-radius: 16px;
  overflow: hidden;
}

#screen-share-video {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.screen-share-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  font-size: 18px;
}

.participants-row {
  display: flex;
  gap: 20px;
  height: 200px;
  justify-content: center;
  align-items: center;
}

.participants-row .room-participant {
  flex: 0 0 auto;
  max-width: 300px;
  min-height: 200px;
  aspect-ratio: 16 / 9;
}

/* Управление комнатой */
.room-controls-wrapper {
  padding: 20px;
  border-radius: 16px;
  margin-top: auto;
}

.room-controls {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.room-controls .small-rect {
  margin: 0;
}

.circle-btn {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
}

.circle-btn svg {
  width: 24px;
  height: 24px;
  stroke: var(--text-main);
  transition: stroke 0.3s ease;
}

.circle-btn:hover {
  background: rgba(255, 255, 255, 0.15);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
}

.circle-btn.active {
  background: linear-gradient(135deg, var(--success), #40c057);
  border-color: var(--success);
  box-shadow: 0 4px 16px rgba(81, 207, 102, 0.4);
}

.circle-btn.active svg {
  stroke: white;
}

.circle-btn--hangup {
  background: linear-gradient(135deg, var(--danger), #ff5252);
  border-color: var(--danger);
}

.circle-btn--hangup:hover {
  background: linear-gradient(135deg, #ff5252, var(--danger));
  box-shadow: 0 4px 16px rgba(255, 107, 107, 0.4);
}

.circle-btn--screen-share-on {
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  border-color: var(--accent);
  box-shadow: 0 4px 16px var(--accent-glow);
}


.small-rect {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.3s ease;
}

.small-rect svg {
  width: 20px;
  height: 20px;
  stroke: var(--text-main);
}

.small-rect:hover {
  background: rgba(255, 255, 255, 0.15);
  transform: translateY(-2px);
}

.small-rect--active {
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  border-color: var(--accent);
  box-shadow: 0 4px 16px var(--accent-glow);
}

/* Всплывающие подсказки */
[data-tip] {
  position: relative;
}

[data-tip]::after {
  content: attr(data-tip);
  position: absolute;
  left: 50%;
  bottom: calc(100% + 8px);
  transform: translateX(-50%) translateY(4px);
  padding: 8px 12px;
  border-radius: 8px;
  background: rgba(0, 0, 0, 0.9);
  color: white;
  font-size: 12px;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 1000;
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

[data-tip]::before {
  content: '';
  position: absolute;
  left: 50%;
  bottom: calc(100% + 2px);
  transform: translateX(-50%);
  width: 0;
  height: 0;
  border-left: 6px solid transparent;
  border-right: 6px solid transparent;
  border-top: 6px solid rgba(0, 0, 0, 0.9);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
  z-index: 1001;
}

[data-tip]:hover::after,
[data-tip]:hover::before {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* Модальные окна */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10000;
  padding: 20px;
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.modal {
  background: linear-gradient(135deg, rgba(26, 31, 58, 0.95), rgba(15, 22, 41, 0.95));
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 20px;
  padding: 32px;
  width: min(95%, 440px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
  animation: slideUp 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.modal-title {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-main);
}

.modal-sub {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 24px;
  line-height: 1.5;
}

.modal-input {
  width: 100%;
  padding: 14px 18px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  color: var(--text-main);
  font-size: 16px;
  margin-bottom: 20px;
  transition: all 0.3s ease;
}

.modal-input:focus {
  outline: none;
  border-color: var(--accent);
  background: rgba(255, 255, 255, 0.08);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.modal-input::placeholder {
  color: var(--text-muted);
}

.modal-actions {
  display: flex;
  gap: 12px;
  justify-content: flex-end;
}

.modal-btn {
  padding: 12px 24px;
  border-radius: 12px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all 0.3s ease;
}

.modal-btn--ghost {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-main);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.modal-btn--ghost:hover {
  background: rgba(255, 255, 255, 0.1);
}

/* Модальное окно выбора устройств */
.modal-content {
  padding: 20px 0;
}

.device-select-group {
  margin-bottom: 20px;
}

.device-label {
  display: block;
  margin-bottom: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-main);
}

.device-select {
  width: 100%;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  color: var(--text-main);
  font-size: 14px;
  cursor: pointer;
  transition: all 0.3s ease;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23ffffff' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
}

.device-select:focus {
  outline: none;
  border-color: var(--accent);
  background-color: rgba(255, 255, 255, 0.08);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.device-select option {
  background: var(--bg-dark);
  color: var(--text-main);
  padding: 8px;
}

.modal-btn--secondary {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-main);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.modal-btn--secondary:hover {
  background: rgba(255, 255, 255, 0.1);
}

.modal-btn--primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: white;
  box-shadow: 0 4px 16px var(--accent-glow);
}

.modal-btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px var(--accent-glow);
}

.hidden {
  display: none !important;
}

/* Кнопка копирования ID комнаты */
.copy-room-id-btn {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 56px;
  height: 56px;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  display: none;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.3s ease;
  z-index: 1000;
  padding: 0;
}

.copy-room-id-btn svg {
  width: 24px;
  height: 24px;
  stroke: var(--text-main);
  transition: stroke 0.3s ease;
}

.copy-room-id-btn:hover {
  background: rgba(255, 255, 255, 0.15);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
}

.copy-room-id-btn:active {
  transform: translateY(0);
}

.copy-room-id-btn.copied {
  background: linear-gradient(135deg, var(--success), #40c057);
  border-color: var(--success);
  box-shadow: 0 4px 16px rgba(81, 207, 102, 0.4);
}

.copy-room-id-btn.copied svg {
  stroke: white;
}

@media (max-width: 768px) {
  .copy-room-id-btn {
    width: 48px;
    height: 48px;
    bottom: 20px;
    right: 20px;
  }

  .copy-room-id-btn svg {
    width: 20px;
    height: 20px;
  }
}

/* Скроллбар */
.chat-messages::-webkit-scrollbar {
  width: 6px;
}

.chat-messages::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.05);
  border-radius: 3px;
}

.chat-messages::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.2);
  border-radius: 3px;
}

.chat-messages::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.3);
}

/* Адаптивность */
@media (max-width: 1024px) {
  .hero {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }

  .hero-content {
    align-items: center;
  }

  .room-view-chat {
    flex-direction: column;
  }

  .participants-column {
    flex: 0 0 auto;
    flex-direction: row;
    height: 200px;
  }
}

@media (max-width: 768px) {
  .topbar {
    padding: 16px 20px;
  }

  .brand-logo {
    width: 40px;
    height: 40px;
    font-size: 18px;
  }

  .brand-title {
    font-size: 16px;
  }

  .brand-sub {
    font-size: 12px;
  }

  .hero-content h1 {
    font-size: 32px;
  }

  .lede {
    font-size: 16px;
  }

  .auth-card {
    padding: 32px 24px;
  }

  .room-row {
    flex-direction: column;
  }

  .room-controls {
    gap: 12px;
  }

  .circle-btn {
    width: 48px;
    height: 48px;
  }

  .circle-btn svg {
    width: 20px;
    height: 20px;
  }
}

@media (max-width: 480px) {
  .cta-row {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }

  .hero-grid {
    grid-template-columns: 1fr;
  }

  .modal {
    padding: 24px 20px;
  }

  .modal-actions {
    flex-direction: column;
  }

  .modal-btn {
    width: 100%;
  }
}