/* ===========================
   MediaDevices page styles
   (match Canvas Filter page controls)
   =========================== */

/* --- Layout (與既有頁面一致) --- */
.demo-grid {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 16px;
  align-items: start;
}

.stage-container {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px;
  position: relative;
  display: grid;
  place-items: center;
  min-height: 420px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
  margin-bottom: 14px;
}

.performance-stage-wrapper {
  width: 100%;
  max-width: 100%;
}
.performance-stage {
  position: relative;
  width: 100%;
  height: auto;
  max-width: 900px;
  aspect-ratio: 3 / 2; /* 舞台比例與既有頁一致 */
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: inset 0 2px 8px rgba(0, 0, 0, 0.1);
  margin: 0 auto;
}

/* 舞台內放兩個預覽框 */
.performance-stage .video-grid {
  position: absolute;
  inset: 0;
  padding: 12px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  background: #0f1218;
}
.video-card {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px;
}
.video-label {
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 6px;
}
video {
  width: 100%;
  aspect-ratio: 16 / 9;
  background: #111;
  border-radius: 8px;
  display: block;
  object-fit: cover;
  transform-origin: center;
}

/* --- 狀態列（沿用效能頁尺寸） --- */
.status-display {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  width: 100%;
  max-width: 900px;
  margin: 16px auto 12px;
}
.status-item {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
  text-align: center;
  min-height: 80px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.status-label {
  font-size: 11px;
  color: var(--muted);
  margin-bottom: 8px;
  letter-spacing: 1px;
  font-weight: 600;
}
.status-value {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  font-family: "SF Mono", Monaco, ui-monospace, monospace;
  letter-spacing: -0.5px;
}

/* --- 右側控制面板（對齊現有 panel / panel-section） --- */
.control-panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 14px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 12px;
}
.control-section {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px;
}
.control-section h3 {
  margin: 0 0 8px 0;
  font-size: 13px;
  color: #cfd6e6;
  font-weight: 600;
  letter-spacing: 0.2px;
}
.control-section label {
  display: block;
  color: var(--muted);
  font-size: 12px;
  margin-bottom: 8px;
}

/* --- 表單元件外觀（複製 Canvas Filter 規格） --- */
/* 100% 寬、深色底、圓角 8px、hover 藍邊 */
:root {
  --control-h: 42px;
}

.control-section select,
.control-section input[type="range"],
.control-section button {
  width: 100%;
  background: #0f1218;
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 10px;
}

.control-section button {
  cursor: pointer;
}
.control-section button:hover {
  border-color: #3a82f6;
}

/* 等寬按鈕群（兩顆/三顆都平均） */
.btn-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 8px;
}
.btn-row button {
  flex: 1;
  min-width: 120px; /* 比原本 80px 稍加大，視覺穩定 */
}

/* 禁用態一致 */
button:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  filter: grayscale(0.15);
}

button:disabled:hover {
  border: 1px solid var(--border);
}

/* --- 錄音清單與 Log --- */
.recordings {
  display: grid;
  gap: 8px;
  margin-top: 8px;
}
.rec-item {
  background: #0f1218;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px;
}
.rec-item a {
  display: inline-block;
  margin-bottom: 6px;
  color: #93c5fd;
}
.rec-item audio {
  width: 100%;
  display: block;
  margin-top: 6px;
}

.log {
  max-height: 180px;
  overflow: auto;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas,
    "Liberation Mono", monospace;
  font-size: 12px;
  padding: 10px;
  background: #0f1218;
  border: 1px solid var(--border);
  border-radius: 10px;
}

/* --- Responsive --- */
@media (max-width: 1100px) {
  .demo-grid {
    grid-template-columns: 1fr 340px;
  }
}
@media (max-width: 900px) {
  .demo-grid {
    grid-template-columns: 1fr;
  }
  .control-panel {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  }
}
@media (max-width: 700px) {
  .performance-stage {
    aspect-ratio: 16 / 9;
  }
  .control-panel {
    grid-template-columns: 1fr;
  }
  .btn-row {
    flex-direction: column;
  }
  .status-display {
    grid-template-columns: 1fr;
    gap: 8px;
  }
  .status-item {
    padding: 14px;
    min-height: 70px;
  }
  .status-value {
    font-size: 16px;
  }
}