:root {
  --bg: #081018;
  --bg-deep: #050a11;
  --panel: rgba(11, 18, 28, 0.84);
  --panel-strong: rgba(15, 24, 36, 0.94);
  --panel-border: rgba(173, 205, 219, 0.12);
  --text: #eef6ff;
  --muted: #9db3c4;
  --accent: #7ef3dc;
  --accent-2: #ffbf72;
  --accent-3: #8fb8ff;
  --good: #96f0c4;
  --shadow: 0 28px 70px rgba(0, 0, 0, 0.34);
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  color: var(--text);
  font-family: Inter, system-ui, sans-serif;
  background:
    radial-gradient(circle at top left, rgba(126, 243, 220, 0.14), transparent 28%),
    radial-gradient(circle at top right, rgba(255, 191, 114, 0.16), transparent 30%),
    linear-gradient(180deg, rgba(4, 11, 18, 0.9), rgba(3, 8, 14, 0.98)),
    var(--bg);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(circle at center, rgba(0, 0, 0, 0.7), transparent 92%);
  opacity: 0.22;
}

.page-shell {
  width: min(1520px, calc(100vw - 28px));
  margin: 0 auto;
  padding: 18px 0 28px;
}

.topbar,
.topbar-status,
.layout,
.invite-head,
.invite-row,
.panel-head,
.composer-actions,
.action-cluster {
  display: flex;
  gap: 12px;
}

.topbar,
.invite-head,
.panel-head,
.composer-actions {
  align-items: center;
  justify-content: space-between;
}

.topbar {
  position: sticky;
  top: 12px;
  z-index: 20;
  padding: 14px 18px;
  border: 1px solid var(--panel-border);
  border-radius: 24px;
  backdrop-filter: blur(18px);
  background: linear-gradient(180deg, rgba(12, 20, 31, 0.92), rgba(8, 14, 22, 0.86));
  box-shadow: var(--shadow);
}

.back-link {
  color: var(--text);
  text-decoration: none;
  font-weight: 700;
}

.brand-block {
  min-width: 0;
}

.brand-block strong,
h1,
h2 {
  font-family: "Space Grotesk", Inter, sans-serif;
}

.brand-block strong {
  display: block;
  font-size: 1.15rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.topbar-status {
  flex-wrap: wrap;
  justify-content: flex-end;
}

.status-pill {
  padding: 0.55rem 0.82rem;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.04);
}

.status-pill.ghost {
  color: var(--muted);
}

.status-pill[data-tone="online"] {
  color: #062317;
  border-color: rgba(126, 243, 220, 0.5);
  background: linear-gradient(135deg, var(--accent), #dafcf1);
}

.status-pill[data-tone="connecting"] {
  color: #201004;
  border-color: rgba(255, 191, 114, 0.5);
  background: linear-gradient(135deg, rgba(255, 191, 114, 0.92), rgba(255, 231, 203, 0.96));
}

.status-pill[data-tone="offline"] {
  color: var(--muted);
}

.layout {
  align-items: start;
  margin-top: 16px;
  display: grid;
  grid-template-columns: minmax(280px, 340px) minmax(0, 1fr) minmax(260px, 320px);
}

.control-rail,
.feed-column,
.sidebar {
  display: grid;
  gap: 14px;
}

.panel {
  border: 1px solid var(--panel-border);
  border-radius: 28px;
  padding: 18px;
  background:
    radial-gradient(circle at top, rgba(255, 255, 255, 0.04), transparent 34%),
    linear-gradient(180deg, var(--panel), var(--panel-strong));
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.eyebrow,
.label {
  margin: 0;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
}

h1,
h2,
.lede,
.status-text,
.helper-copy,
.mini-status,
.metric-card strong,
.metric-card span,
.invite-card p,
.message-time,
.message-bubble p,
.player-card p {
  margin: 0;
}

h1 {
  margin-top: 12px;
  font-size: clamp(2.4rem, 5vw, 3.7rem);
  line-height: 0.98;
  letter-spacing: -0.03em;
}

h2 {
  font-size: 1.28rem;
  line-height: 1.1;
}

.lede,
.status-text,
.helper-copy,
.mini-status {
  color: var(--muted);
  line-height: 1.55;
}

.lede {
  margin-top: 10px;
}

.step-list {
  display: grid;
  gap: 10px;
  margin: 18px 0;
}

.step-card,
.metric-card,
.player-card {
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.03);
}

.step-card {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 12px;
  padding: 12px 14px;
}

.step-card span {
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border-radius: 999px;
  color: #05110d;
  background: linear-gradient(135deg, var(--accent), #dffcf3);
  font-weight: 800;
}

.step-card p,
.player-card p {
  margin-top: 4px;
  color: var(--muted);
  line-height: 1.45;
}

.field-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

label {
  display: grid;
  gap: 7px;
  font-size: 0.88rem;
  color: var(--muted);
}

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

input,
select,
textarea {
  width: 100%;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 16px;
  padding: 0.92rem 0.98rem;
  color: var(--text);
  background: rgba(4, 10, 18, 0.76);
  outline: none;
  transition: border-color 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

input:focus,
select:focus,
textarea:focus {
  border-color: rgba(126, 243, 220, 0.48);
  box-shadow: 0 0 0 4px rgba(126, 243, 220, 0.12);
  background: rgba(7, 14, 23, 0.9);
}

input[readonly] {
  color: rgba(238, 246, 255, 0.78);
}

textarea {
  min-height: 108px;
  resize: vertical;
}

button {
  border: none;
  border-radius: 16px;
  padding: 0.92rem 1rem;
  color: var(--text);
  background: rgba(255, 255, 255, 0.07);
  cursor: pointer;
  font-weight: 700;
  transition: transform 140ms ease, box-shadow 140ms ease, background 140ms ease;
}

button:hover,
button:focus-visible {
  transform: translateY(-1px);
  background: rgba(255, 255, 255, 0.11);
}

button.primary {
  color: #06130e;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 18px 40px rgba(126, 243, 220, 0.15);
}

button.secondary {
  background: rgba(255, 255, 255, 0.06);
}

button:disabled {
  cursor: not-allowed;
  transform: none;
  opacity: 0.55;
}

.action-cluster {
  flex-wrap: wrap;
  margin-top: 14px;
}

.action-cluster button {
  flex: 1 1 180px;
}

.invite-box,
.advanced-panel,
.status-text {
  margin-top: 16px;
}

.invite-head {
  align-items: start;
}

.invite-row {
  align-items: stretch;
  flex-wrap: wrap;
  margin-top: 10px;
}

.invite-row input {
  flex: 1 1 260px;
}

.invite-row button {
  flex: 0 0 auto;
}

.advanced-panel {
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 20px;
  padding: 10px 12px;
  background: rgba(255, 255, 255, 0.03);
}

.advanced-panel summary {
  cursor: pointer;
  font-weight: 700;
  color: var(--text);
}

.advanced-panel label {
  margin-top: 12px;
}

.overview-panel {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(280px, 0.85fr);
  gap: 16px;
  align-items: stretch;
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.metric-card {
  padding: 14px;
}

.metric-card span {
  display: block;
  color: var(--muted);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.metric-card strong {
  display: block;
  margin-top: 8px;
  font-size: 1.3rem;
}

.chat-panel,
.sidebar-panel,
.share-panel {
  display: grid;
  gap: 14px;
}

.message-list {
  min-height: 420px;
  max-height: 58vh;
  overflow: auto;
  padding-right: 4px;
  display: grid;
  gap: 12px;
  scrollbar-gutter: stable;
}

.message-empty,
.invite-empty,
.player-empty {
  padding: 18px;
  border: 1px dashed rgba(255, 255, 255, 0.1);
  border-radius: 18px;
  color: var(--muted);
  text-align: center;
  background: rgba(255, 255, 255, 0.02);
}

.message {
  display: grid;
  gap: 6px;
}

.message.system {
  justify-items: center;
}

.message.system .message-bubble {
  padding: 0.7rem 0.95rem;
  border-radius: 999px;
  background: rgba(126, 243, 220, 0.08);
  border: 1px solid rgba(126, 243, 220, 0.16);
  color: #d7fff3;
}

.message-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.message-author {
  font-weight: 700;
}

.message-time {
  font-size: 0.78rem;
  color: var(--muted);
}

.message-bubble {
  padding: 14px 16px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.06);
  line-height: 1.55;
}

.message.chat.self {
  justify-items: end;
}

.message.chat.self .message-bubble {
  background: linear-gradient(135deg, rgba(126, 243, 220, 0.14), rgba(255, 191, 114, 0.16));
  border-color: rgba(126, 243, 220, 0.16);
}

.message a,
.invite-card a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 700;
}

.composer {
  display: grid;
  gap: 10px;
}

.composer-field {
  gap: 0;
}

.composer-actions {
  flex-wrap: wrap;
}

.composer-meta {
  display: grid;
  gap: 4px;
}

.composer-actions p {
  color: var(--muted);
  font-size: 0.86rem;
}

.composer-button-row {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
}

.voice-status {
  min-height: 1.25em;
}

.voice-status[data-tone="recording"] {
  color: var(--accent-2);
}

.voice-status[data-tone="processing"] {
  color: var(--accent);
}

.voice-status[data-tone="ready"] {
  color: var(--good);
}

.voice-status[data-tone="live"] {
  color: var(--accent);
}

.voice-status[data-tone="error"] {
  color: #ff9b9b;
}

.voice-lab-panel {
  display: grid;
  gap: 14px;
}

.voice-preset-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.voice-preset-btn {
  display: grid;
  gap: 4px;
  min-height: 88px;
  padding: 14px;
  text-align: left;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 18px;
  background:
    radial-gradient(circle at top, rgba(255, 255, 255, 0.04), transparent 42%),
    rgba(255, 255, 255, 0.035);
}

.voice-preset-btn strong,
.voice-preset-btn span {
  display: block;
}

.voice-preset-btn strong {
  font-size: 0.95rem;
}

.voice-preset-btn span {
  color: var(--muted);
  font-size: 0.8rem;
  line-height: 1.35;
}

.voice-preset-btn.is-active {
  color: #04100d;
  border-color: rgba(126, 243, 220, 0.42);
  background: linear-gradient(145deg, rgba(126, 243, 220, 0.98), rgba(255, 191, 114, 0.92));
  box-shadow: 0 16px 30px rgba(126, 243, 220, 0.16);
}

.voice-preset-btn.is-active span {
  color: rgba(7, 17, 29, 0.82);
}

.voice-meter-stack,
.voice-slider-grid {
  display: grid;
  gap: 12px;
}

.voice-meter-stack {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.voice-meter-block {
  padding: 12px 14px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.07);
}

.voice-meter-head,
.voice-slider-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.voice-meter-head span,
.voice-slider-head span {
  color: var(--muted);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.voice-meter-head strong,
.voice-slider-head strong {
  font-size: 0.82rem;
}

.voice-meter {
  position: relative;
  height: 12px;
  margin-top: 10px;
  border-radius: 999px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.06);
}

.voice-meter span {
  display: block;
  height: 100%;
  width: 0%;
  border-radius: inherit;
  background: linear-gradient(90deg, rgba(126, 243, 220, 0.92), rgba(255, 191, 114, 0.94));
  box-shadow: 0 0 18px rgba(126, 243, 220, 0.24);
  transition: width 80ms linear;
}

.voice-meter-output span {
  background: linear-gradient(90deg, rgba(143, 184, 255, 0.94), rgba(255, 191, 114, 0.94));
  box-shadow: 0 0 18px rgba(143, 184, 255, 0.22);
}

.voice-slider {
  display: grid;
  gap: 8px;
  padding: 12px 14px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.07);
}

.voice-slider input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  padding: 0;
  background: transparent;
  border: 0;
  box-shadow: none;
}

.voice-slider input[type="range"]::-webkit-slider-runnable-track {
  height: 8px;
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(126, 243, 220, 0.12), rgba(143, 184, 255, 0.18));
}

.voice-slider input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  margin-top: -5px;
  border: 0;
  border-radius: 50%;
  background: linear-gradient(145deg, #effbff, var(--accent-2));
  box-shadow: 0 0 0 3px rgba(126, 243, 220, 0.12);
}

.voice-slider input[type="range"]::-moz-range-track {
  height: 8px;
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(126, 243, 220, 0.12), rgba(143, 184, 255, 0.18));
}

.voice-slider input[type="range"]::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border: 0;
  border-radius: 50%;
  background: linear-gradient(145deg, #effbff, var(--accent-2));
  box-shadow: 0 0 0 3px rgba(126, 243, 220, 0.12);
}

.voice-lab-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.voice-lab-actions button {
  flex: 1 1 170px;
}

.sample-voice-btn[data-state="recording"],
.sample-voice-btn[data-state="playing"] {
  color: #06130e;
  background: linear-gradient(135deg, rgba(143, 184, 255, 0.98), rgba(126, 243, 220, 0.94));
  box-shadow: 0 16px 34px rgba(143, 184, 255, 0.16);
}

.sample-voice-btn[data-state="preparing"] {
  background: linear-gradient(135deg, rgba(143, 184, 255, 0.18), rgba(126, 243, 220, 0.18));
}

.voice-preview-status {
  min-height: 1.35em;
}

.voice-preview-status[data-tone="processing"] {
  color: var(--accent);
}

.voice-preview-status[data-tone="recording"] {
  color: var(--accent-2);
}

.voice-preview-status[data-tone="ready"] {
  color: var(--good);
}

.voice-preview-status[data-tone="error"] {
  color: #ff9b9b;
}

.voice-btn[data-state="live"] {
  color: #04140f;
  background: linear-gradient(135deg, var(--accent), #dffcf3);
  box-shadow: 0 16px 34px rgba(126, 243, 220, 0.18);
}

.voice-btn[data-state="processing"] {
  background: linear-gradient(135deg, rgba(126, 243, 220, 0.22), rgba(143, 184, 255, 0.2));
}

.mute-voice-btn[data-muted="true"] {
  color: #221003;
  background: linear-gradient(135deg, var(--accent-2), #ffe1be);
  box-shadow: 0 14px 28px rgba(255, 191, 114, 0.16);
}

.share-grid,
.note-field {
  margin-top: 0;
}

.player-list,
.invite-list {
  display: grid;
  gap: 12px;
}

.player-card {
  padding: 14px 16px;
}

.player-card.voice-active {
  border-color: rgba(126, 243, 220, 0.18);
  background: linear-gradient(180deg, rgba(126, 243, 220, 0.08), rgba(255, 255, 255, 0.03));
}

.player-card strong {
  display: block;
}

.player-meta {
  margin-top: 6px;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 0.3rem 0.62rem;
  border-radius: 999px;
  font-size: 0.76rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.chip.voice-live {
  color: #062317;
  border-color: rgba(126, 243, 220, 0.42);
  background: linear-gradient(135deg, rgba(126, 243, 220, 0.96), rgba(219, 255, 244, 0.96));
}

.chip.voice-muted {
  color: #2b1707;
  border-color: rgba(255, 191, 114, 0.45);
  background: linear-gradient(135deg, rgba(255, 191, 114, 0.94), rgba(255, 226, 185, 0.98));
}

.chip.voice-preset-chip {
  color: #d9f4ff;
  border-color: rgba(143, 184, 255, 0.32);
  background: rgba(143, 184, 255, 0.12);
}

.invite-card {
  padding: 14px;
  border-radius: 22px;
  background: linear-gradient(145deg, rgba(143, 184, 255, 0.1), rgba(126, 243, 220, 0.08));
  border: 1px solid rgba(143, 184, 255, 0.16);
  display: grid;
  gap: 10px;
}

.invite-card-head,
.invite-card-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.invite-card strong {
  display: block;
}

.invite-card .room-chip {
  color: #e9f4ff;
}

.invite-card-note,
.invite-card-meta {
  color: var(--muted);
  line-height: 1.45;
}

.invite-card-actions {
  flex-wrap: wrap;
}

.invite-card-actions a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 122px;
  padding: 0.74rem 0.94rem;
  border-radius: 14px;
  color: #06130e;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.voice-audio-host {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
  pointer-events: none;
}

@media (max-width: 1220px) {
  .layout {
    grid-template-columns: minmax(280px, 320px) minmax(0, 1fr);
  }

  .sidebar {
    grid-column: 1 / -1;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .overview-panel {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 920px) {
  .page-shell {
    width: min(100%, calc(100vw - 18px));
    padding-top: 10px;
  }

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

  .field-grid,
  .metrics-grid,
  .sidebar {
    grid-template-columns: 1fr;
  }

  .topbar {
    position: static;
    flex-wrap: wrap;
  }

  .brand-block {
    order: -1;
    width: 100%;
  }

  .message-list {
    max-height: none;
  }

  .voice-preset-grid,
  .voice-meter-stack {
    grid-template-columns: 1fr;
  }
}