/* ==========================================================================
   File Vault Studio - LAN Transfer (P2P 直连互传专属样式)
   继承主设计系统 Token，专注于 P2P 拓扑、流控仪表、分块矩阵与声学频谱
   ========================================================================== */

/* 主工作区两栏布局 */
.p2p-layout {
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 20px;
  width: 100%;
  padding-bottom: 32px;
}

/* 侧边栏卡片自包含并纵向排列，防止被全局 .side-panel 覆盖 */
.p2p-layout .side-panel {
  display: flex;
  flex-direction: column;
  gap: 16px;
  position: sticky;
  top: 16px;
  min-width: 0;
}

/* 连接雷达卡片 */
.radar-card {
  position: relative;
  overflow: hidden;
}

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

.role-switch-group {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
  background: var(--bg-input);
  padding: 4px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  margin-bottom: 16px;
}

.role-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 0.88rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
}

.role-btn.active {
  background: var(--color-primary);
  color: #ffffff;
  box-shadow: var(--shadow-sm);
}

/* 状态指示徽标与呼吸灯 */
.status-badge-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 14px;
  background: var(--bg-input);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  margin-bottom: 16px;
}

.status-indicator {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.88rem;
  font-weight: 600;
}

.pulse-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--text-dim);
  position: relative;
  transition: background 0.3s ease;
}

.pulse-dot.connecting {
  background: var(--color-warning);
  box-shadow: 0 0 10px var(--color-warning);
  animation: pulse-ring 1.5s infinite;
}

.pulse-dot.connected {
  background: var(--color-primary);
  box-shadow: 0 0 12px var(--color-primary);
  animation: pulse-ring 2s infinite;
}

@keyframes pulse-ring {
  0% { transform: scale(0.95); opacity: 0.8; }
  50% { transform: scale(1.2); opacity: 1; }
  100% { transform: scale(0.95); opacity: 0.8; }
}

.rtt-info {
  font-size: 0.8rem;
  color: var(--text-dim);
  font-family: var(--font-mono);
}

/* 信令互通 Tab 切换 */
.signal-tabs {
  display: flex;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 16px;
  gap: 4px;
}

.signal-tab-btn {
  padding: 8px 12px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-size: 0.82rem;
  font-weight: 500;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.signal-tab-btn:hover {
  color: var(--text-main);
}

.signal-tab-btn.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

/* 信令交互面板 */
.signal-panel {
  display: none;
}

.signal-panel.active {
  display: block;
}

/* 二维码卡片展示 */
.qr-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 16px;
  background: #ffffff;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  margin: 12px 0;
  min-height: 220px;
}

.qr-canvas {
  max-width: 100%;
  height: auto;
  image-rendering: pixelated;
}

.qr-caption {
  font-size: 0.78rem;
  color: #475569;
  margin-top: 8px;
  text-align: center;
}

/* 剪贴板文本框 */
.signal-textarea {
  width: 100%;
  min-height: 80px;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-main);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  padding: 10px;
  resize: vertical;
  line-height: 1.4;
  outline: none;
  transition: var(--transition);
}

.signal-textarea:focus {
  border-color: var(--border-focus);
}

/* 剪贴板分步流转卡片与 Offer/Answer 语义标识 */
.clip-flow {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.step-card {
  padding: 12px 14px;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: var(--transition);
}

.step-card:focus-within {
  border-color: var(--color-primary);
}

.step-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
}

.step-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 9999px;
  letter-spacing: 0.02em;
}

.step-badge.step-1 {
  background: rgba(16, 185, 129, 0.15);
  color: var(--color-primary);
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.step-badge.step-2 {
  background: rgba(59, 130, 246, 0.15);
  color: #3b82f6;
  border: 1px solid rgba(59, 130, 246, 0.3);
}

.step-title {
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.step-desc {
  font-size: 0.74rem;
  color: var(--text-muted);
  margin-bottom: 8px;
  line-height: 1.4;
}

/* Offer / Answer 语义胶囊标签 */
.badge-tag {
  display: inline-block;
  padding: 1px 7px;
  border-radius: 4px;
  font-size: 0.72rem;
  font-family: var(--font-mono);
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.badge-tag.offer-tag {
  background: rgba(16, 185, 129, 0.2);
  color: #10b981;
  border: 1px solid rgba(16, 185, 129, 0.4);
}

.badge-tag.answer-tag {
  background: rgba(99, 102, 241, 0.2);
  color: #818cf8;
  border: 1px solid rgba(99, 102, 241, 0.4);
}

body.theme-light .badge-tag.offer-tag {
  background: #ecfdf5;
  color: #047857;
  border: 1px solid #a7f3d0;
}

body.theme-light .badge-tag.answer-tag {
  background: #eef2ff;
  color: #4338ca;
  border: 1px solid #c7d2fe;
}

/* 右侧传输主舞台 */
.transfer-stage {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* 引擎与环境提示条 */
.engine-status-strip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding: 12px 18px;
  background: var(--bg-card);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

.engine-tags {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.engine-tag {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 0.75rem;
  padding: 4px 8px;
  border-radius: 4px;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
}

.engine-tag.highlight {
  color: var(--color-primary);
  border-color: rgba(16, 185, 129, 0.4);
  background: var(--color-primary-bg);
}

.engine-tag.unsupported {
  opacity: 0.4;
  text-decoration: line-through;
}

/* 桌面专享指定目录控件 */
.dir-picker-wrap {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-outline-dir {
  background: var(--bg-input);
  border: 1px dashed var(--border-color);
  color: var(--text-main);
  font-size: 0.76rem;
  padding: 5px 12px;
  border-radius: var(--radius-sm, 6px);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition);
}

.btn-outline-dir:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-primary-bg, rgba(16, 185, 129, 0.08));
}

.btn-outline-dir.active {
  background: rgba(16, 185, 129, 0.15);
  border: 1px solid var(--color-primary);
  color: var(--color-primary);
  font-weight: 600;
}

/* 待发文件队列卡片 */
.file-queue-card {
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 14px;
  margin-top: 14px;
}

.queue-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-color);
}

.queue-summary {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}

.queue-title {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-main);
  white-space: nowrap;
}

.file-queue-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 250px;
  overflow-y: auto;
  padding-right: 4px;
}

.queue-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 10px 12px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.queue-item.transferring {
  border-color: var(--color-primary);
  background: var(--color-primary-bg);
}

.queue-item.completed {
  border-color: rgba(16, 185, 129, 0.35);
  opacity: 0.9;
}

.queue-item-main {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.queue-item-info {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
  flex: 1;
}

.queue-item-icon {
  flex-shrink: 0;
  color: var(--text-dim);
  display: flex;
  align-items: center;
}

.queue-item.transferring .queue-item-icon {
  color: var(--color-primary);
}

.queue-item.completed .queue-item-icon {
  color: var(--color-primary);
}

.queue-item-name {
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-main);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.queue-item-size {
  font-size: 0.75rem;
  color: var(--text-dim);
  font-family: var(--font-mono);
  flex-shrink: 0;
}

.queue-item-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.queue-status-badge {
  font-size: 0.72rem;
  font-weight: 600;
  padding: 2px 7px;
  border-radius: 9999px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.queue-status-badge.waiting {
  background: rgba(148, 163, 184, 0.15);
  color: var(--text-muted);
  border: 1px solid rgba(148, 163, 184, 0.25);
}

.queue-status-badge.clickable {
  cursor: pointer;
  user-select: none;
  transition: var(--transition);
}

.queue-status-badge.clickable:hover {
  background: rgba(239, 68, 68, 0.15);
  color: #ef4444;
  border-color: rgba(239, 68, 68, 0.4);
}

.queue-status-badge.transferring {
  background: var(--color-primary-bg);
  color: var(--color-primary);
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.queue-status-badge.completed {
  background: rgba(16, 185, 129, 0.2);
  color: var(--color-primary);
  border: 1px solid rgba(16, 185, 129, 0.35);
}

.queue-status-badge.paused {
  background: rgba(245, 158, 11, 0.15);
  color: var(--color-warning);
  border: 1px solid rgba(245, 158, 11, 0.3);
}

.queue-status-badge.aborted,
.queue-status-badge.error {
  background: rgba(239, 68, 68, 0.15);
  color: var(--color-danger);
  border: 1px solid rgba(239, 68, 68, 0.3);
}

.btn-remove-queue-item {
  background: transparent;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  padding: 2px;
  border-radius: 4px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: color 0.2s ease, transform 0.15s ease;
}

.btn-remove-queue-item:hover {
  color: var(--color-danger);
  transform: scale(1.15);
}

.queue-item-progress-track {
  width: 100%;
  height: 4px;
  background: rgba(0, 0, 0, 0.2);
  border-radius: 9999px;
  overflow: hidden;
  margin-top: 2px;
}

.queue-item-progress-bar {
  height: 100%;
  background: var(--color-primary);
  width: 0%;
  transition: width 0.15s ease;
}

/* 传输度量仪表盘 (HUD) */
.metrics-hud {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-top: 12px;
}

.metric-item {
  background: var(--bg-input);
  padding: 14px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  text-align: center;
}

.metric-label {
  font-size: 0.75rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 6px;
}

.metric-value {
  font-size: 1.35rem;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--text-main);
}

.metric-value.speed {
  color: var(--color-primary);
}

/* 背压水位指示条 */
.backpressure-gauge {
  margin-top: 14px;
  background: var(--bg-input);
  padding: 12px 16px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

.gauge-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
  font-size: 0.8rem;
}

.gauge-track {
  height: 8px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 4px;
  overflow: hidden;
  position: relative;
}

.gauge-fill {
  height: 100%;
  width: 0%;
  background: var(--color-primary);
  transition: width 0.15s ease, background-color 0.2s ease;
}

.gauge-fill.warning {
  background: var(--color-warning);
}

.gauge-fill.danger {
  background: var(--color-danger);
}

/* 分片传输流可视化矩阵 (Quantum Chunk Matrix) */
.chunk-matrix-container {
  margin-top: 16px;
  padding: 14px;
  background: var(--bg-input);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

.chunk-matrix-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  margin-bottom: 10px;
}

.chunk-matrix-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(10px, 1fr));
  gap: 3px;
  max-height: 120px;
  overflow-y: auto;
  padding: 2px;
}

.chunk-block {
  width: 100%;
  aspect-ratio: 1 / 1;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 2px;
  transition: background-color 0.1s ease;
}

.chunk-block.done {
  background: var(--color-primary);
}

.chunk-block.current {
  background: var(--color-accent);
  box-shadow: 0 0 6px var(--color-accent);
}

/* 传输控制按钮组 */
.transfer-controls {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 16px;
}

/* 模态框 - 摄像头扫码器 */
.camera-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(11, 15, 25, 0.88);
  backdrop-filter: blur(8px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.camera-card {
  width: 100%;
  max-width: 480px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
}

.camera-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-color);
}

.camera-viewport-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
  background: #000000;
  overflow: hidden;
}

.camera-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* 扫描准星与激光扫描线 */
.scan-target-box {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 65%;
  height: 65%;
  transform: translate(-50%, -50%);
  border: 2px solid rgba(16, 185, 129, 0.6);
  border-radius: var(--radius-md);
  box-shadow: 0 0 0 9999px rgba(0, 0, 0, 0.5);
  pointer-events: none;
}

.scan-laser-line {
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, transparent, #10b981, transparent);
  box-shadow: 0 0 8px #10b981;
  position: absolute;
  top: 0;
  animation: laser-sweep 2.2s infinite ease-in-out;
}

@keyframes laser-sweep {
  0% { top: 0%; opacity: 0.3; }
  50% { top: 98%; opacity: 1; }
  100% { top: 0%; opacity: 0.3; }
}

.camera-footer {
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 14px 24px;
  background: var(--bg-surface);
  border-top: 1px solid var(--border-color);
}

.camera-footer .hint {
  font-size: 0.82rem;
  color: var(--text-muted);
  text-align: center;
  line-height: 1.4;
  margin: 0;
}

/* 实时动态战报控制台 */
.log-card {
  margin-top: 16px;
}

.activity-log {
  max-height: 220px;
  overflow-y: auto;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 10px 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.76rem;
  line-height: 1.5;
}

.log-item {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  word-break: break-all;
}

.log-time {
  color: var(--text-dim);
  flex-shrink: 0;
  font-family: var(--font-mono);
}

.log-msg {
  color: var(--text-main);
  flex: 1;
}

.log-item.info .log-msg { color: var(--text-muted); }
.log-item.success .log-msg { color: var(--color-primary); font-weight: 500; }
.log-item.warning .log-msg { color: var(--color-warning); }
.log-item.error .log-msg { color: var(--color-danger); }

/* 连接打通后的常驻提示栏 */
.connected-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  background: var(--color-primary-bg);
  border: 1px solid rgba(16, 185, 129, 0.35);
  border-radius: var(--radius-md);
  margin-bottom: 14px;
}

.connected-text {
  font-size: 0.82rem;
  color: var(--color-primary);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
}

/* 响应式断点适配 */
@media (max-width: 1024px) {
  .p2p-layout {
    grid-template-columns: 320px 1fr;
    gap: 16px;
  }
  .p2p-layout .side-panel {
    position: static;
    flex-direction: column;
    flex-wrap: nowrap;
  }
  .metrics-hud {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 840px) {
  .p2p-layout {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .p2p-layout .side-panel {
    position: static;
    display: contents;
  }
  .radar-card {
    order: 1;
  }
  .transfer-stage {
    order: 2;
  }
  .log-card {
    order: 3;
    margin-top: 0;
  }
}

@media (max-width: 640px) {
  .metrics-hud {
    grid-template-columns: 1fr 1fr;
    gap: 8px;
  }
  .metric-value {
    font-size: 1.15rem;
  }
  .transfer-controls {
    flex-direction: column;
  }
  .transfer-controls .btn {
    width: 100%;
  }
}

@media (max-width: 480px) {
  .role-btn {
    padding: 8px 6px;
    font-size: 0.8rem;
    gap: 4px;
  }
  .status-badge-row {
    flex-wrap: wrap;
    gap: 8px;
    padding: 10px 12px;
  }
  .status-indicator {
    font-size: 0.82rem;
  }
  .rtt-info {
    font-size: 0.75rem;
  }
  .qr-container {
    padding: 12px 8px;
  }
  .step-card {
    padding: 10px 12px;
  }
  .signal-tab-btn {
    padding: 8px 10px;
    font-size: 0.8rem;
  }
}