:root {
  --bg: #090b18;
  --bg-soft: #120b2e;
  --bg-deep: #0b1338;
  --surface: rgba(16, 20, 42, 0.82);
  --card-bg: linear-gradient(180deg, rgba(20, 24, 48, 0.88), rgba(12, 16, 36, 0.92));
  --text: #f4f6fb;
  --text-secondary: rgba(244, 246, 251, 0.68);
  --text-muted: rgba(244, 246, 251, 0.55);
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.14);
  --brand-magenta: #cf168f;
  --brand-violet: #5f2bd8;
  --brand-blue: #075bff;
  --brand-gradient: linear-gradient(135deg, var(--brand-magenta) 0%, var(--brand-violet) 48%, var(--brand-blue) 100%);
  --accent: var(--brand-violet);
  --success: #9debbd;
  --success-bg: rgba(36, 150, 96, 0.14);
  --success-border: rgba(36, 150, 96, 0.22);
  --warning: rgba(244, 246, 251, 0.88);
  --warning-bg: rgba(255, 255, 255, 0.06);
  --warning-border: rgba(255, 255, 255, 0.12);
  --danger: #ffb4ab;
  --danger-bg: rgba(180, 35, 24, 0.18);
  --danger-border: rgba(180, 35, 24, 0.35);
  --danger-solid: #b42318;
  --shadow: 0 12px 28px rgba(0, 0, 0, 0.16), inset 0 1px 0 rgba(255, 255, 255, 0.04);
  --shadow-soft: 0 18px 50px rgba(0, 0, 0, 0.06);
  --radius-lg: 28px;
  --radius-md: 18px;
  --radius-sm: 14px;
  --radius-pill: 999px;
  --space-1: 6px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-7: 28px;
  --control-height: 48px;
  --max-width: 1050px;
  --focus-ring: rgba(244, 246, 251, 0.55);
  --shell-bg:
    radial-gradient(circle at 12% 0%, rgba(207, 22, 143, 0.14), transparent 28%),
    radial-gradient(circle at 88% 8%, rgba(7, 91, 255, 0.12), transparent 32%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-soft) 42%, var(--bg-deep) 100%);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  overflow-x: hidden;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family:
    -apple-system,
    BlinkMacSystemFont,
    "SF Pro Text",
    "SF Pro Display",
    "Segoe UI",
    sans-serif;
  background: var(--shell-bg);
  color: var(--text);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

.app {
  width: 100%;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-7);
}

.card {
  width: 100%;
  max-width: var(--max-width);
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-7);
  box-shadow: var(--shadow);
}

.brand {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-5);
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-5);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.brand-lockup {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
  min-width: 0;
}

.brand-logo {
  display: block;
  width: 156px;
  height: auto;
}

.brand-copy {
  min-width: 0;
  padding-left: calc(156px * 0.338 + 8px);
}

.brand-subtitle {
  margin: 0;
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.015em;
  line-height: 1.2;
  color: rgba(244, 246, 251, 0.62);
}

h1 {
  margin: 4px 0 0;
  font-size: 1.65rem;
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1.15;
  color: var(--text);
}

.brand-tagline {
  margin: 8px 0 0;
  font-size: 0.95rem;
  line-height: 1.5;
  color: var(--text-secondary);
}

.ui-lang {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: var(--space-2);
  flex: 0 0 auto;
}

.ui-lang label {
  margin: 0;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: none;
  color: var(--text-muted);
  white-space: nowrap;
}

.ui-lang select {
  width: auto;
  min-width: 92px;
  min-height: 42px;
  margin-top: 0;
  padding: 8px 12px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.045);
  color: var(--text);
  border-color: var(--border-strong);
}

.setup {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr auto;
  gap: 14px;
  align-items: end;
  margin-bottom: var(--space-5);
}

label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
}

input,
select,
textarea {
  width: 100%;
  margin-top: var(--space-2);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  padding: 13px 14px;
  min-height: var(--control-height);
  font: inherit;
  font-size: 0.9375rem;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  transition:
    border-color 0.2s ease,
    box-shadow 0.2s ease,
    background 0.2s ease;
}

input:hover,
select:hover,
textarea:hover {
  border-color: rgba(255, 255, 255, 0.2);
}

input:focus,
select:focus,
textarea:focus,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
.ui-lang select:focus-visible,
button:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: 2px;
}

input:focus,
select:focus,
textarea:focus {
  border-color: rgba(95, 43, 216, 0.45);
  box-shadow: 0 0 0 4px rgba(95, 43, 216, 0.12);
  background: rgba(255, 255, 255, 0.06);
}

textarea {
  min-height: 170px;
  resize: vertical;
  line-height: 1.5;
}

.btn,
button {
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  padding: 12px 18px;
  min-height: 42px;
  font: inherit;
  font-size: 0.875rem;
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: 0.01em;
  white-space: normal;
  cursor: pointer;
  color: var(--text);
  background: rgba(255, 255, 255, 0.03);
  border-color: rgba(255, 255, 255, 0.1);
  transition:
    transform 0.2s ease,
    opacity 0.2s ease,
    background 0.2s ease,
    border-color 0.2s ease,
    box-shadow 0.2s ease,
    color 0.2s ease;
}

button:hover:not(:disabled) {
  transform: translateY(-1px);
  border-color: rgba(207, 22, 143, 0.28);
  background: rgba(255, 255, 255, 0.05);
  box-shadow: 0 0 16px rgba(95, 43, 216, 0.1);
}

button:active:not(:disabled) {
  transform: translateY(0);
}

button:disabled {
  opacity: 0.5;
  cursor: wait;
  transform: none;
  box-shadow: none;
}

.btn-primary,
#joinBtn {
  min-height: var(--control-height);
  padding: 0 22px;
  border: 0;
  background: var(--brand-gradient);
  color: #ffffff;
  box-shadow: 0 8px 24px rgba(95, 43, 216, 0.22);
}

.btn-primary:hover:not(:disabled),
#joinBtn:hover:not(:disabled) {
  border: 0;
  opacity: 0.94;
  box-shadow: 0 12px 28px rgba(95, 43, 216, 0.28);
}

.btn-danger,
#endMeetingBtn {
  background: var(--danger-bg);
  border-color: var(--danger-border);
  color: var(--danger);
}

.btn-danger:hover:not(:disabled),
#endMeetingBtn:hover:not(:disabled) {
  background: rgba(180, 35, 24, 0.28);
  border-color: rgba(180, 35, 24, 0.5);
  color: #ffffff;
}

#audioBtn[data-ready="true"] {
  background: var(--success-bg);
  border-color: var(--success-border);
  color: var(--success);
}

#micBtn[data-busy="true"] {
  background: rgba(7, 91, 255, 0.16);
  border-color: rgba(7, 91, 255, 0.32);
  color: var(--text);
}

.room-info {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  margin: 0 0 var(--space-5);
  padding: 12px 14px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.025);
  color: var(--text-secondary);
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.status-dot {
  width: 8px;
  height: 8px;
  flex: 0 0 auto;
  border-radius: var(--radius-pill);
  background: var(--text-muted);
}

.status-copy {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.status-label {
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-muted);
}

#status {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text);
  overflow-wrap: anywhere;
}

.participants {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.participants strong {
  color: var(--text);
  font-weight: 600;
}

.room-info[data-tone="connecting"] .status-dot,
.room-info[data-tone="translating"] .status-dot,
.room-info[data-tone="generating"] .status-dot {
  background: var(--brand-blue);
}

.room-info[data-tone="connected"] {
  border-color: var(--success-border);
  background: var(--success-bg);
}

.room-info[data-tone="connected"] .status-dot {
  background: var(--success);
}

.room-info[data-tone="listening"] {
  border-color: rgba(207, 22, 143, 0.28);
  background: rgba(207, 22, 143, 0.08);
}

.room-info[data-tone="listening"] .status-dot {
  background: var(--brand-magenta);
}

.room-info[data-tone="warning"] {
  border-color: var(--warning-border);
  background: var(--warning-bg);
}

.room-info[data-tone="warning"] .status-dot {
  background: #f5d56a;
}

.room-info[data-tone="error"] {
  border-color: var(--danger-border);
  background: var(--danger-bg);
}

.room-info[data-tone="error"] .status-dot {
  background: var(--danger);
}

.workspace {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.panel {
  min-height: 260px;
}

.panel-title,
.panel > span {
  display: block;
  margin-bottom: var(--space-2);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text);
}

.result-panel {
  padding: 0;
}

.messages {
  min-height: 222px;
  max-height: 360px;
  overflow-y: auto;
  margin-top: var(--space-2);
  padding: var(--space-4);
  border-radius: var(--radius-md);
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid rgba(255, 255, 255, 0.04);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.04);
}

.empty {
  display: grid;
  place-items: center;
  min-height: 190px;
  margin: 0;
  padding: var(--space-4);
  text-align: center;
  color: var(--text-muted);
  line-height: 1.6;
  font-size: 0.95rem;
}

.message {
  margin-bottom: var(--space-3);
  padding: 12px 14px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  color: var(--text);
  line-height: 1.5;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.message:last-child {
  margin-bottom: 0;
}

.message strong {
  display: block;
  margin-bottom: 4px;
  font-size: 0.8125rem;
  font-weight: 600;
  color: rgba(244, 246, 251, 0.88);
}

.own-message {
  background: var(--success-bg);
  border-color: var(--success-border);
}

.message small {
  display: block;
  margin-top: 6px;
  color: var(--text-secondary);
  font-size: 0.75rem;
}

.message-play {
  margin-top: 10px;
  min-height: 36px;
  padding: 0 14px;
  width: auto;
  border-radius: var(--radius-pill);
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--text-secondary);
  font-size: 0.75rem;
  font-weight: 600;
}

.message-play:hover:not(:disabled) {
  color: var(--text);
  border-color: rgba(207, 22, 143, 0.28);
}

.message-play:disabled {
  opacity: 0.6;
}

.actions {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 14px;
  margin-top: 18px;
}

.actions button {
  min-height: 48px;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }

  button:hover:not(:disabled) {
    transform: none;
  }
}

@media (max-width: 1024px) {
  .setup {
    grid-template-columns: 1fr 1fr;
  }

  #joinBtn {
    grid-column: 1 / -1;
  }
}

@media (max-width: 850px) {
  .app {
    padding: var(--space-4);
    align-items: flex-start;
  }

  .setup,
  .workspace,
  .actions {
    grid-template-columns: 1fr;
  }

  .card {
    padding: 22px;
    border-radius: var(--radius-md);
  }

  h1 {
    font-size: 1.35rem;
  }

  .brand {
    flex-wrap: wrap;
    align-items: flex-start;
  }

  .brand-copy {
    padding-left: 0;
  }

  .ui-lang {
    width: 100%;
    align-items: stretch;
  }

  .ui-lang select {
    width: 100%;
    min-height: var(--control-height);
  }

  input,
  select,
  textarea,
  button,
  .actions button,
  #joinBtn {
    min-height: var(--control-height);
  }
}

@media (max-width: 390px) {
  .app {
    padding: 12px;
  }

  .card {
    padding: 16px;
  }

  .brand-logo {
    width: 132px;
  }
}