/* ============================================================
   plan.css — 培养计划面板样式
   翻转卡片 / 学期Tab / 课程列表 / 状态按钮
   ============================================================ */

/* ---- Flip Cards Grid ---- */
.plan-flip-cards {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 14px;
  margin-bottom: 20px;
}

/* Hide the old circles container (now merged into flip cards) */
.plan-circles {
  display: none !important;
}

/* ---- Flip Card ---- */
.flip-card {
  perspective: 800px;
  height: 170px;
  cursor: pointer;
}

.flip-card-inner {
  position: relative;
  width: 100%;
  height: 100%;
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  transform-style: preserve-3d;
}

.flip-card.flipped .flip-card-inner {
  transform: rotateY(180deg);
}

.flip-card-front,
.flip-card-back {
  position: absolute;
  inset: 0;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  border-radius: var(--radius-md);
}

.flip-card-front {
  z-index: 2;
}

.flip-card-back {
  transform: rotateY(180deg);
  z-index: 1;
  padding: 14px 8px 10px;
}

/* Flip hint */
.flip-hint {
  position: absolute;
  bottom: 6px;
  right: 8px;
  font-size: 0.6rem;
  color: var(--color-text-muted);
  opacity: 0;
  transition: opacity var(--transition);
}

.flip-card:hover .flip-hint {
  opacity: 0.7;
}

.flip-hint-back {
  right: auto;
  left: 8px;
}

/* ---- Stat Card (used inside flip card front) ---- */
.stat-card {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  border-left: 4px solid var(--color-border);
  padding: 16px 18px;
  background-color: var(--color-surface);
  border-radius: var(--radius-md);
  box-shadow: var(--color-card-shadow);
  transition: background-color var(--transition), box-shadow var(--transition);
  height: 100%;
  box-sizing: border-box;
}

.stat-card:hover {
  box-shadow: var(--color-card-shadow-md);
}

.stat-card-blue   { border-left-color: var(--color-primary); }
.stat-card-green  { border-left-color: var(--color-success); }
.stat-card-amber  { border-left-color: var(--color-warning); }
.stat-card-slate  { border-left-color: var(--color-text-muted); }
.stat-card-purple { border-left-color: var(--color-info); }

/* ---- Percentage Circle Card (used inside flip card back) ---- */
.progress-circle-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  box-shadow: var(--color-card-shadow);
  height: 100%;
  box-sizing: border-box;
}

.progress-circle-wrap {
  position: relative;
  width: 90px;
  height: 90px;
  flex-shrink: 0;
}

.progress-circle-svg {
  width: 100%;
  height: 100%;
}

.progress-circle-center {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  pointer-events: none;
}

.progress-circle-value {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.2;
}

.progress-circle-label {
  font-size: 0.76rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  text-align: center;
  margin-top: 1px;
}

.progress-circle-sub {
  font-size: 0.68rem;
  color: var(--color-text-muted);
  text-align: center;
}

.stat-card-icon {
  font-size: 1.5rem;
  line-height: 1;
  flex-shrink: 0;
}

.stat-card-body {
  flex: 1;
  min-width: 0;
}

.stat-card-label {
  font-size: 0.78rem;
  color: var(--color-text-muted);
  font-weight: 500;
  margin-bottom: 2px;
}

.stat-card-value {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.3;
}

.stat-card-sub {
  font-size: 0.7rem;
  color: var(--color-text-muted);
  margin-top: 2px;
}

/* ---- Semester Tabs ---- */
.plan-semester-tabs {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  padding: 4px 0 12px;
  margin-bottom: 16px;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  position: sticky;
  top: calc(var(--header-height) + var(--tabs-height));
  z-index: 10;
  background-color: var(--color-bg);
}

.plan-tab {
  flex: 0 0 auto;
  min-width: 130px;
  padding: 10px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background-color: var(--color-surface);
  cursor: pointer;
  text-align: left;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.plan-tab:hover {
  border-color: var(--color-primary);
  box-shadow: var(--color-card-shadow);
}

.plan-tab-active {
  border-color: var(--color-primary);
  background-color: var(--color-primary-bg);
  box-shadow: 0 0 0 3px var(--color-primary-border);
}

.plan-tab-name {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text);
}

.plan-tab-meta {
  font-size: 0.7rem;
  color: var(--color-text-muted);
  white-space: nowrap;
}

.plan-tab-progress {
  height: 7px;
  background-color: var(--color-border);
  border-radius: 4px;
  margin-top: 4px;
  overflow: hidden;
}

.plan-tab-progress-bar {
  height: 100%;
  background-color: var(--color-primary);
  border-radius: 4px;
  transition: width 0.5s ease;
}

.plan-tab-progress-text {
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--color-primary);
  align-self: flex-end;
}

.plan-tab-flexible {
  border-style: dashed;
  background-color: var(--color-info-bg);
}

/* ---- Flexible Section ---- */
.plan-flexible-section {
  margin-bottom: 16px;
}

.flexible-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background-color: var(--color-info-bg);
  border: 1px dashed var(--color-info);
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: 14px;
}

.flexible-icon {
  font-size: 1.2rem;
}

/* ---- Course List ---- */
.plan-course-list {
  margin-bottom: 20px;
}

.course-list-header {
  margin-bottom: 14px;
}

.course-list-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--color-text);
}

.course-list-summary {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.course-list-progress {
  font-size: 0.82rem;
  color: var(--color-text-muted);
  font-weight: 500;
}

/* ---- Course Group ---- */
.course-group {
  margin-bottom: 16px;
}

.course-group-header {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  padding: 6px 0 8px;
  border-bottom: 1px solid var(--color-border-light);
  margin-bottom: 8px;
}

.course-empty {
  text-align: center;
  padding: 40px 20px;
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

/* ---- Course Row ---- */
.course-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  margin-bottom: 6px;
  transition: all var(--transition);
}

.course-row:hover {
  box-shadow: var(--color-card-shadow);
}

.course-row-done {
  opacity: 0.75;
}

.course-row-indicator {
  width: 4px;
  height: 36px;
  border-radius: 2px;
  flex-shrink: 0;
}

.course-row-indicator.status-pending     { background-color: var(--color-text-muted); }
.course-row-indicator.status-in-progress { background-color: var(--color-warning); }
.course-row-indicator.status-completed   { background-color: var(--color-success); }

.course-row-main {
  flex: 1;
  min-width: 0;
}

.course-row-name {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--color-text);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  line-height: 1.4;
}

.course-row-meta {
  display: flex;
  gap: 12px;
  margin-top: 3px;
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

.course-row-id {
  font-family: var(--font-mono);
  font-size: 0.72rem;
}

.course-row-hours {
  color: var(--color-text-muted);
}

.course-row-right {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.course-credits-badge {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  white-space: nowrap;
}

/* ---- Status Button ---- */
.btn-status {
  min-width: 90px;
  justify-content: center;
}

.btn-status.status-pending {
  background-color: var(--color-surface-hover);
  color: var(--color-text-muted);
  border-color: var(--color-border);
}

.btn-status.status-pending:hover {
  border-color: var(--color-warning);
  color: var(--color-warning);
}

.btn-status.status-in-progress {
  background-color: var(--color-warning-bg);
  color: var(--color-warning);
  border-color: var(--color-warning-border);
}

.btn-status.status-in-progress:hover {
  background-color: var(--color-warning);
  color: #fff;
}

.btn-status.status-completed {
  background-color: var(--color-success-bg);
  color: var(--color-success);
  border-color: var(--color-success-border);
}

.btn-status.status-completed:hover {
  background-color: var(--color-success);
  color: #fff;
}

/* ---- Reset Actions ---- */
.plan-reset-actions {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
  padding: 16px 0;
  border-top: 1px solid var(--color-border);
  flex-wrap: wrap;
}

/* ---- Badge Size Variant ---- */
.badge-xs {
  padding: 1px 6px;
  font-size: 0.68rem;
}

/* ---- Responsive ---- */
@media (max-width: 1023px) {
  .plan-flip-cards {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 767px) {
  .plan-flip-cards {
    grid-template-columns: 1fr 1fr;
    gap: 8px;
  }

  .flip-card {
    height: 155px;
  }

  .stat-card {
    padding: 12px 14px;
  }

  .stat-card-value {
    font-size: 1.1rem;
  }

  .progress-circle-wrap {
    width: 72px;
    height: 72px;
  }

  .plan-tab {
    min-width: 105px;
    padding: 8px 10px;
  }

  .plan-tab-name {
    font-size: 0.82rem;
  }

  .course-row {
    flex-wrap: wrap;
    gap: 8px;
    padding: 10px 12px;
  }

  .course-row-right {
    width: 100%;
    justify-content: flex-start;
    flex-wrap: wrap;
  }

  .course-row-indicator {
    display: none;
  }

  .course-row-meta {
    flex-wrap: wrap;
    gap: 6px;
  }

  /* Score input mobile */
  .course-score-input {
    flex-wrap: wrap;
    gap: 4px;
    margin-top: 6px;
  }

  .course-score-value,
  .course-score-max {
    width: 52px !important;
    padding: 3px 4px !important;
    font-size: 0.8rem !important;
  }
}

/* ---- Score Input ---- */
.course-score-input {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-top: 6px;
  padding: 6px 10px;
  background: var(--color-surface-hover);
  border-radius: var(--radius-sm);
  border: 1px dashed var(--color-border);
  animation: scoreIn 0.3s ease;
}

@keyframes scoreIn {
  from { opacity: 0; transform: translateY(-4px); }
  to   { opacity: 1; transform: translateY(0); }
}

.course-score-label {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  white-space: nowrap;
}

.course-score-value,
.course-score-max {
  padding: 3px 6px;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  background: var(--color-surface);
  color: var(--color-text);
  font-size: 0.82rem;
  text-align: center;
  font-family: var(--font-mono);
  transition: border-color var(--transition);
}

.course-score-value:focus,
.course-score-max:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px var(--color-primary-bg);
}

.course-score-sep {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-muted);
}

.course-score-pct {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--color-success);
  margin-left: 4px;
}
.btn-icon-only {
  padding: 4px 8px;
  font-size: 0.9rem;
  line-height: 1;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition);
}

.btn-icon-only:hover {
  background-color: var(--color-surface-hover);
  border-color: var(--color-primary);
}

.btn-notes-has {
  background-color: var(--color-warning-bg);
  border-color: var(--color-warning);
}

.badge-notes {
  background-color: var(--color-warning-bg);
  color: var(--color-warning);
  font-size: 0.65rem;
}

.notes-course-name {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 10px;
  padding: 8px 12px;
  background-color: var(--color-surface-hover);
  border-radius: var(--radius-sm);
}

#notes-modal-textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-family: inherit;
  line-height: 1.6;
  resize: vertical;
  background-color: var(--color-surface);
  color: var(--color-text);
  min-height: 120px;
}

#notes-modal-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-border);
}

/* Responsive rules are consolidated above */