/* 账号菜单 / 完成标记 / 学习进度弹窗 */

/* ---------- 账号菜单 ---------- */
.user-area {
  position: relative;
}

.user-chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  height: 34px;
  padding: 0 10px 0 4px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--paper-3);
  color: var(--ink-2);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  max-width: 180px;
  transition: border-color 0.2s ease, background-color 0.2s ease, color 0.2s ease;
}

.user-chip:hover {
  border-color: var(--accent-1);
  background: var(--accent-3);
  color: var(--ink-1);
}

.user-avatar {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--accent-1), var(--accent-2));
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  flex-shrink: 0;
}

.user-name {
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.user-chevron {
  color: var(--ink-3);
  flex-shrink: 0;
}

.user-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 176px;
  padding: 6px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: var(--glass-strong);
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow-md);
  z-index: 80;
}

.user-menu[hidden] {
  display: none;
}

.user-menu button,
.user-menu a {
  display: block;
  width: 100%;
  padding: 9px 12px;
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--ink-2);
  font-size: 13px;
  font-weight: 600;
  text-align: left;
  text-decoration: none;
  cursor: pointer;
}

.user-menu button:hover,
.user-menu a:hover {
  background: var(--accent-3);
  color: var(--accent-1);
}

/* ---------- 标记完成按钮 ---------- */
.mark-done-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  height: var(--control-h);
  padding: 0 10px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--paper-3);
  color: var(--ink-2);
  font-size: 12px;
  font-weight: 700;
  white-space: nowrap;
  cursor: pointer;
  flex-shrink: 0;
  transition: transform 0.2s ease, border-color 0.2s ease, background-color 0.2s ease, color 0.2s ease;
}

.mark-done-btn:hover {
  background: var(--accent-3);
  border-color: var(--accent-1);
  color: var(--accent-1);
}

.mark-done-btn:active {
  transform: scale(0.96);
}

.mark-done-btn.done {
  background: rgba(31, 138, 122, 0.14);
  border-color: var(--teal);
  color: var(--teal);
}

/* ---------- 课程完成徽标 ---------- */
.unit-item.done {
  position: relative;
  padding-right: 26px;
}

.unit-item.done::after {
  content: "✓";
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 12px;
  font-weight: 800;
  color: var(--teal);
}

/* ---------- 弹窗 ---------- */
.nce-modal {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  background: rgba(10, 10, 10, 0.48);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}

.nce-modal.open {
  opacity: 1;
  pointer-events: auto;
}

.nce-modal-card {
  position: relative;
  width: min(560px, 100%);
  max-height: min(82vh, 720px);
  overflow-y: auto;
  padding: 22px 22px 18px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--paper-1);
  box-shadow: var(--shadow-xl);
  transform: translateY(8px);
  transition: transform 0.2s ease;
}

.nce-modal.open .nce-modal-card {
  transform: translateY(0);
}

.nce-modal-close {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--paper-3);
  color: var(--ink-2);
  font-size: 16px;
  line-height: 1;
  cursor: pointer;
}

.nce-modal-close:hover {
  border-color: var(--accent-1);
  color: var(--accent-1);
}

.nce-modal-card h3 {
  margin: 0 26px 14px 0;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--ink-1);
}

/* ---------- 进度内容 ---------- */
.progress-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.stat-card {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 10px 8px;
  border-radius: var(--radius-md);
  background: var(--paper-2);
  border: 1px solid var(--border);
  text-align: center;
}

.stat-value {
  font-size: 15px;
  font-weight: 700;
  color: var(--ink-1);
}

.stat-label {
  font-size: 11px;
  color: var(--ink-3);
}

.progress-books {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 14px;
}

.progress-book {
  padding: 12px;
  border-radius: var(--radius-md);
  background: var(--paper-2);
  border: 1px solid var(--border);
}

.progress-book-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
}

.progress-book-name {
  font-size: 13px;
  font-weight: 700;
  color: var(--ink-1);
}

.progress-book-count {
  font-size: 11px;
  font-family: var(--font-mono);
  color: var(--ink-3);
  flex-shrink: 0;
}

.progress-bar-line {
  height: 6px;
  margin: 8px 0 6px;
  border-radius: 999px;
  background: var(--paper-3);
  overflow: hidden;
}

.progress-bar-fill {
  display: block;
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent-1), var(--accent-2));
  transition: width 0.3s ease;
}

.progress-book-last {
  margin: 0;
  font-size: 12px;
  color: var(--ink-2);
  line-height: 1.5;
}

.progress-book-last.muted {
  color: var(--ink-3);
}

.progress-hint {
  margin: 14px 0 0;
  font-size: 11px;
  color: var(--ink-3);
  text-align: center;
}

.progress-loading,
.progress-empty {
  margin: 18px 0 4px;
  font-size: 13px;
  color: var(--ink-3);
  text-align: center;
}

/* ---------- 响应式 ---------- */
@media (max-width: 640px) {
  .user-name,
  .user-chevron {
    display: none;
  }

  .user-chip {
    padding: 0 4px;
  }

  .mark-label {
    display: none;
  }

  .mark-done-btn {
    width: var(--control-h);
    padding: 0;
  }

  .stat-value {
    font-size: 13px;
  }

  .nce-modal-card {
    padding: 18px 14px 14px;
  }
}