/* ===== 主持人端（大屏）样式 ===== */
:root {
  --bg: #0d1117;
  --panel: #161b22;
  --panel-2: #1c2330;
  --border: #2d333b;
  --text: #e6edf3;
  --text-dim: #8b949e;
  --accent: #f6a623;
  --danger: #f85149;
  --ok: #3fb950;
  --radius: 10px;
}

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

html, body {
  height: 100%;
  overflow: hidden;
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  background: var(--bg);
  color: var(--text);
}

.hidden { display: none !important; }

/* ===== 顶部栏 ===== */
.topbar {
  display: flex;
  align-items: center;
  gap: 20px;
  height: 60px;
  padding: 0 20px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  user-select: none;
}
.brand { display: flex; align-items: center; gap: 8px; font-size: 18px; font-weight: 700; }
.brand-icon { font-size: 22px; }
.room-info { display: flex; align-items: center; gap: 10px; }
.room-code-box {
  display: flex; align-items: center; gap: 8px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 5px 14px;
  cursor: pointer;
}
.room-code-label { font-size: 12px; color: var(--text-dim); }
.room-code { font-size: 22px; font-weight: 800; letter-spacing: 3px; color: var(--accent); }
.stats { display: flex; align-items: center; gap: 16px; margin-left: auto; }
.stat { text-align: center; min-width: 52px; }
.stat-num { display: block; font-size: 22px; font-weight: 800; line-height: 1.1; }
.stat-label { font-size: 12px; color: var(--text-dim); }
.stat-divider { width: 1px; height: 28px; background: var(--border); }
.top-actions { display: flex; align-items: center; gap: 8px; }

/* ===== 按钮 ===== */
.btn {
  border: 1px solid var(--border);
  background: var(--panel-2);
  color: var(--text);
  border-radius: var(--radius);
  padding: 8px 16px;
  font-size: 14px;
  cursor: pointer;
  transition: all .15s;
  white-space: nowrap;
}
.btn:hover { background: #2a3242; border-color: #3d444d; }
.btn:active { transform: scale(.97); }
.btn-primary { background: var(--accent); border-color: var(--accent); color: #17100b; font-weight: 700; }
.btn-primary:hover { background: #ffb84a; border-color: #ffb84a; }
.btn-danger { background: transparent; border-color: #f8514977; color: var(--danger); }
.btn-danger:hover { background: #f8514918; }
.btn-pause { background: transparent; border-color: var(--ok); color: var(--ok); font-weight: 600; }
.btn-pause.paused { border-color: var(--accent); color: var(--accent); }
.btn-sm { padding: 5px 12px; font-size: 13px; }
.btn-ghost { background: transparent; }

/* ===== 词云画布区 ===== */
.stage {
  position: relative;
  height: calc(100vh - 60px - 56px);
  display: flex;
  flex-direction: column;
}
.stage-head {
  text-align: center;
  padding: 14px 20px 4px;
  position: relative;
  z-index: 2;
}
.stage-title {
  font-size: 30px;
  font-weight: 800;
  letter-spacing: 2px;
  text-shadow: 0 2px 12px rgba(0,0,0,.5);
}
.stage-sub { font-size: 14px; color: var(--text-dim); }
.canvas-wrap {
  flex: 1;
  margin: 0 20px 12px;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--border);
  background: #17100b;
  position: relative;
}
#wcCanvas { width: 100%; height: 100%; display: block; }

/* ===== 底部控制栏 ===== */
.controlbar {
  height: 56px;
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 0 20px;
  background: var(--panel);
  border-top: 1px solid var(--border);
  user-select: none;
}
.ctrl-group { display: flex; align-items: center; gap: 8px; }
.ctrl-label { font-size: 13px; color: var(--text-dim); }
.ctrl-right { margin-left: auto; }

.seg {
  display: flex;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.seg-item {
  padding: 6px 14px;
  font-size: 13px;
  cursor: pointer;
  color: var(--text-dim);
  border-right: 1px solid var(--border);
  transition: all .15s;
  white-space: nowrap;
}
.seg-item:last-child { border-right: none; }
.seg-item:hover { color: var(--text); background: #2a3242; }
.seg-item.active {
  background: var(--accent);
  color: #17100b;
  font-weight: 700;
}
.seg-item.active-color { background: var(--accent); color: #17100b; font-weight: 700; }

/* ===== 弹窗 ===== */
.modal-mask {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.65);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  backdrop-filter: blur(4px);
}
.modal {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px;
  position: relative;
  max-width: 92vw;
  max-height: 90vh;
  overflow: auto;
  box-shadow: 0 24px 60px rgba(0,0,0,.5);
}
.modal h2 { font-size: 20px; margin-bottom: 18px; }
.modal-close {
  position: absolute; top: 14px; right: 14px;
  width: 32px; height: 32px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--panel-2);
  color: var(--text-dim);
  cursor: pointer;
  font-size: 14px;
}
.modal-close:hover { color: var(--text); }

.qr-modal { text-align: center; width: 360px; }
.qr-box {
  width: 260px; height: 260px;
  margin: 0 auto 16px;
  background: #fff;
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
}
.qr-box img { width: 240px; height: 240px; }
.qr-url-row { display: flex; gap: 8px; margin-bottom: 12px; }
.qr-url {
  flex: 1;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-dim);
  font-size: 12px;
  padding: 8px 10px;
  outline: none;
}
.qr-tip { font-size: 13px; color: var(--text-dim); }

.settings-modal { width: 420px; }
.form-row { margin-bottom: 16px; }
.form-row label { display: block; font-size: 13px; color: var(--text-dim); margin-bottom: 6px; }
.form-row input, .form-row textarea {
  width: 100%;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  padding: 10px 12px;
  font-size: 14px;
  font-family: inherit;
  outline: none;
  resize: vertical;
}
.form-row input:focus, .form-row textarea:focus { border-color: var(--accent); }
.modal-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 20px; }

.confirm-modal { width: 360px; text-align: center; }
.confirm-modal p { color: var(--text-dim); font-size: 14px; margin-top: 8px; }

/* ===== Toast ===== */
.toast {
  position: fixed;
  left: 50%; bottom: 80px;
  transform: translateX(-50%);
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 12px 24px;
  border-radius: 12px;
  font-size: 14px;
  z-index: 200;
  box-shadow: 0 8px 30px rgba(0,0,0,.4);
  animation: toastIn .25s ease;
}
@keyframes toastIn {
  from { opacity: 0; transform: translate(-50%, 12px); }
  to { opacity: 1; transform: translate(-50%, 0); }
}

/* ===== 响应式（小屏兜底） ===== */
@media (max-width: 1100px) {
  .stats { display: none; }
  .topbar { gap: 10px; padding: 0 10px; }
  .stage { height: calc(100vh - 60px - 96px); }
  .controlbar { height: auto; flex-wrap: wrap; padding: 8px 10px; gap: 10px; }
  .stage-head { padding-top: 8px; }
  .stage-title { font-size: 22px; }
}