:root {
  color-scheme: light;
  --bg: #f4f1ec;
  --panel: #ffffff;
  --ink: #1f1b16;
  --muted: #6f665e;
  --accent: #f07f4f;
  --me: #ffe8d6;
  --other: #e6f2ff;
  --border: #e5ded6;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "IBM Plex Sans", "Segoe UI", sans-serif;
  background: linear-gradient(135deg, #f8f3ec 0%, #f0e7dd 100%);
  color: var(--ink);
  min-height: 100vh;
}

.app {
  max-width: 860px;
  margin: 0 auto;
  padding: 32px 20px 48px;
}

.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

h1 {
  margin: 0;
  font-size: 28px;
  letter-spacing: 0.5px;
}

.sub {
  margin: 4px 0 0;
  color: var(--muted);
}

.status {
  font-weight: 600;
  padding: 8px 14px;
  border-radius: 999px;
  background: #e9e4dd;
  color: var(--muted);
}

.status[data-state="connected"] {
  background: #d4f5e1;
  color: #0f5132;
}

.status[data-state="reconnecting"] {
  background: #fff3cd;
  color: #664d03;
}

.logout {
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: #fff;
  color: var(--ink);
  font-weight: 600;
  cursor: pointer;
}

.logout:hover {
  background: #f6f0e8;
}

.modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  z-index: 10;
}

.modal-card {
  background: #fff;
  border-radius: 16px;
  padding: 20px;
  max-width: 420px;
  width: 100%;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.2);
}

.modal-card h2 {
  margin: 0 0 10px;
  font-size: 20px;
}

.modal-card p {
  margin: 0 0 16px;
  color: var(--muted);
}

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

.modal-actions button {
  padding: 8px 14px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #fff;
  cursor: pointer;
  font-weight: 600;
}

.modal-actions .danger {
  background: #d92d20;
  color: #fff;
  border-color: transparent;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 20px;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.08);
}

.auth-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
}

.tab {
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: #f6f0e8;
  color: #3d332a;
  cursor: pointer;
  font-weight: 600;
}

.tab.active {
  background: #2f6fed;
  color: white;
  border-color: transparent;
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.hidden {
  display: none;
}

.auth-error {
  min-height: 18px;
  color: #b42318;
  font-size: 13px;
}

.password-hint {
  padding: 10px 12px;
  border-radius: 12px;
  background: #f6f0e8;
  font-size: 13px;
  color: var(--muted);
}

.password-hint ul {
  margin: 8px 0 0;
  padding-left: 18px;
}

.password-hint li.ok {
  color: #0f5132;
  font-weight: 600;
}

.fields {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
  margin-bottom: 12px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 14px;
  color: var(--muted);
}

.field input {
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  font-size: 15px;
}

.field button {
  height: 41px;
  padding: 0 18px;
  border-radius: 12px;
  border: none;
  background: #2f6fed;
  color: white;
  font-weight: 600;
  cursor: pointer;
}

.field button:disabled {
  opacity: 0.6;
  cursor: default;
}

.toggle {
  display: inline-flex;
  gap: 10px;
  align-items: center;
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 8px;
}

.toggle input {
  width: 16px;
  height: 16px;
}

.chat {
  height: 360px;
  overflow-y: auto;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 14px;
  background: #faf7f2;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.msg {
  padding: 10px 12px;
  border-radius: 14px;
  max-width: 75%;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.msg.me {
  align-self: flex-end;
  background: var(--me);
}

.msg.other {
  align-self: flex-start;
  background: var(--other);
}

.msg.system {
  align-self: center;
  background: #f2efe9;
  color: var(--muted);
  max-width: 90%;
}

.meta {
  font-size: 12px;
  color: var(--muted);
}

.muted {
  color: var(--muted);
  font-size: 13px;
}

.meta .tag {
  display: inline-block;
  margin-left: 6px;
  padding: 2px 6px;
  border-radius: 999px;
  font-size: 11px;
  background: #eee7df;
  color: var(--muted);
}

.meta .tag.ok {
  background: #d4f5e1;
  color: #0f5132;
}

.meta .tag.fail {
  background: #fde2e2;
  color: #a01313;
}

.content {
  font-size: 15px;
  white-space: pre-wrap;
}

.composer {
  display: flex;
  gap: 12px;
  align-items: stretch;
  margin-top: 14px;
}

textarea {
  flex: 1;
  padding: 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  resize: vertical;
  min-height: 60px;
  font-size: 15px;
}

button {
  padding: 0 18px;
  border-radius: 12px;
  border: none;
  background: var(--accent);
  color: white;
  font-weight: 600;
  cursor: pointer;
}

button:hover {
  filter: brightness(0.95);
}

.hint {
  margin-top: 10px;
  font-size: 12px;
  color: var(--muted);
}

.voice-call-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
  margin: 16px 0 12px;
}

.voice-panel,
.call-panel,
.roster {
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 14px;
  background: #fffaf5;
}

.panel-title {
  font-weight: 700;
  margin-bottom: 10px;
}

.voice-controls,
.call-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 10px;
}

.voice-controls button,
.call-controls button {
  padding: 8px 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #fff;
  color: var(--ink);
  cursor: pointer;
  font-weight: 600;
}

.voice-controls button:disabled,
.call-controls button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.call-controls .danger {
  background: #d92d20;
  color: #fff;
  border-color: transparent;
}

.voice-status {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 13px;
  color: var(--muted);
}

.voice-warning {
  color: #b42318;
  font-weight: 600;
}

.voice-participants {
  margin-top: 12px;
  display: grid;
  gap: 6px;
}

.voice-participant {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 6px 10px;
  border-radius: 10px;
  background: #fff;
  border: 1px solid var(--border);
  font-size: 13px;
}

.voice-participant .state {
  font-size: 12px;
  color: var(--muted);
}

.voice-participant.speaking {
  border-color: #2f6fed;
  box-shadow: 0 0 0 1px rgba(47, 111, 237, 0.2);
}

.call-status {
  font-size: 14px;
  margin-bottom: 10px;
  color: var(--muted);
}

.meter {
  height: 8px;
  border-radius: 999px;
  background: #f0e7dd;
  overflow: hidden;
  margin: 6px 0 10px;
}

.meter-fill {
  height: 100%;
  width: 0%;
  background: #2f6fed;
  transition: width 120ms linear;
}

.call-security {
  font-size: 12px;
  color: var(--muted);
  display: grid;
  gap: 4px;
  margin-bottom: 8px;
}

.call-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 8px 10px;
  margin-bottom: 8px;
}

.call-banner button {
  padding: 6px 10px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: #f6f0e8;
  color: var(--ink);
  cursor: pointer;
  font-weight: 600;
}

.sound-unlock {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  background: #fff3cd;
  border: 1px solid #f8d97e;
  border-radius: 12px;
  padding: 8px 10px;
  font-size: 12px;
  color: #664d03;
  margin-bottom: 8px;
}

.sound-unlock button {
  padding: 6px 10px;
  border-radius: 8px;
  border: 1px solid #f8d97e;
  background: #fff;
  color: var(--ink);
  cursor: pointer;
  font-weight: 600;
}

.roster {
  margin-bottom: 12px;
}

.user-list {
  display: grid;
  gap: 6px;
}

.user-row {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 8px;
  align-items: center;
  padding: 6px 10px;
  border-radius: 10px;
  background: #fff;
  border: 1px solid var(--border);
  font-size: 13px;
}

.user-row button {
  padding: 6px 10px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: #f6f0e8;
  color: var(--ink);
  cursor: pointer;
  font-weight: 600;
}

.user-row button.danger {
  background: #d92d20;
  color: #fff;
  border-color: transparent;
}

.user-row.blocked {
  opacity: 0.6;
}

@media (max-width: 720px) {
  .voice-call-grid {
    grid-template-columns: 1fr;
  }

  .user-row {
    grid-template-columns: 1fr;
    justify-items: start;
  }
}

@media (max-width: 700px) {
  .composer {
    flex-direction: column;
  }

  button {
    height: 44px;
  }

  .msg {
    max-width: 100%;
  }
}