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

:root {
  --paper: #f7f5f0;
  --card: #fff;
  --ink: #1a1814;
  --muted: #6b675e;
  --line: #d8d1c0;
  --tea: #0e5e54;
  --tea-dark: #0b4a43;
  --danger: #b8341f;
}

body {
  font-family: -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--paper);
  color: var(--ink);
  min-height: 100vh;
}

.hidden {
  display: none !important;
}

/* 顶部栏 */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  background: var(--card);
  border-bottom: 1px solid var(--line);
}

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

.brand h1 {
  font-size: 18px;
  font-weight: 600;
}

.status {
  font-size: 12px;
  padding: 3px 10px;
  border-radius: 999px;
}

.status.ok {
  background: var(--tea);
  color: #fff;
}

.status.bad {
  background: #e0dbd0;
  color: var(--muted);
}

.room-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
}

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

.room-meta strong {
  font-size: 20px;
  letter-spacing: 3px;
  color: var(--tea);
}

/* 通用按钮/输入 */
.btn {
  padding: 10px 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--card);
  font-size: 14px;
  cursor: pointer;
  color: var(--ink);
}

.btn:hover {
  background: #efece4;
}

.btn.primary {
  background: var(--tea);
  border-color: var(--tea);
  color: #fff;
}

.btn.primary:hover {
  background: var(--tea-dark);
}

.btn.ghost {
  padding: 6px 12px;
  font-size: 13px;
}

.btn.danger {
  color: var(--danger);
  border-color: #f0c4bd;
}

.btn.block {
  width: 100%;
}

input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  font-size: 14px;
  background: var(--card);
  outline: none;
}

input:focus {
  border-color: var(--tea);
}

/* 首页（未入房） */
.home {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: calc(100vh - 65px);
  padding: 24px;
}

.card {
  width: 100%;
  max-width: 420px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.card h2 {
  font-size: 20px;
  font-weight: 600;
  text-align: center;
}

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

.divider {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--muted);
  font-size: 12px;
}

.divider::before,
.divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--line);
}

.join-row {
  display: flex;
  gap: 8px;
}

.join-row input {
  flex: 1;
}

.hint {
  font-size: 12px;
  color: var(--muted);
  line-height: 1.6;
  text-align: center;
}

.error {
  padding: 10px 12px;
  background: #fdecea;
  border: 1px solid #f0c4bd;
  color: var(--danger);
  border-radius: 8px;
  font-size: 13px;
  line-height: 1.4;
}

/* 房间视图：左侧成员 + 右侧聊天 */
.room {
  display: flex;
  height: calc(100vh - 65px);
}

.members-panel {
  width: 240px;
  flex-shrink: 0;
  border-right: 1px solid var(--line);
  padding: 20px;
  background: var(--card);
  overflow-y: auto;
}

.members-panel h3 {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--muted);
}

.members-panel h3 span {
  color: var(--ink);
}

.member {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 8px 10px;
  border-radius: 8px;
  font-size: 14px;
  margin-bottom: 4px;
}

.member-name {
  display: flex;
  align-items: center;
  gap: 8px;
}

.member .tag {
  font-size: 11px;
  padding: 1px 6px;
  border-radius: 999px;
  background: #efece4;
  color: var(--muted);
}

.member .tag.leader {
  background: var(--tea);
  color: #fff;
}

.member .tag.me {
  background: #e0f0ec;
  color: var(--tea);
}

.chat-panel {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.chat {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.msg {
  max-width: 70%;
  line-height: 1.5;
  font-size: 14px;
  align-self: flex-start;
}

.msg .name {
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 2px;
}

.msg .bubble {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 8px 12px;
  word-break: break-all;
}

.msg.mine {
  align-self: flex-end;
}

.msg.mine .name {
  text-align: right;
}

.msg.mine .bubble {
  background: var(--tea);
  border-color: var(--tea);
  color: #fff;
}

.chat-input {
  display: flex;
  gap: 10px;
  padding: 16px 20px;
  border-top: 1px solid var(--line);
  background: var(--card);
}

.chat-input input {
  flex: 1;
}

/* 成员实时状态 */
.presence {
  font-size: 12px;
  color: var(--muted);
  display: inline-flex;
  align-items: center;
  gap: 3px;
}

.presence.playing {
  color: var(--tea);
}

.presence.paused {
  color: #b8860b;
}

.presence.offline {
  color: var(--muted);
  opacity: 0.6;
}

.presence-title {
  display: block;
  font-size: 12px;
  color: var(--muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}

/* 活动事件流 */
.ev-heading {
  margin-top: 16px;
}

.events {
  display: flex;
  flex-direction: column;
  gap: 4px;
  max-height: 180px;
  overflow-y: auto;
}

.event {
  font-size: 12px;
  color: var(--ink);
  line-height: 1.5;
}

.event .ev-time {
  color: var(--muted);
  margin-right: 6px;
  font-variant-numeric: tabular-nums;
}

/* 表情按钮 */
.react-btns {
  display: flex;
  gap: 2px;
  align-items: center;
}

.react-btn {
  border: none;
  background: transparent;
  font-size: 20px;
  cursor: pointer;
  padding: 4px 6px;
  border-radius: 8px;
  line-height: 1;
}

.react-btn:hover {
  background: #efece4;
}