/* --- Global Styles --- */
:root {
  --portal-radius: 3px;
}

.rounded-2xl,
.rounded-xl,
.rounded-lg,
.rounded-md,
.rounded {
  border-radius: var(--portal-radius) !important;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: linear-gradient(180deg, #f1f5f9 0%, #e2e8f0 100%);
  margin: 0;
  color: #0f172a;
}

a {
  color: #0284c7;
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: #0369a1;
}

h1 {
  font-size: 2rem;
  margin: 0;
  color: #0f172a;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.courseplan-table {
  width: 100%;
  margin: 0 auto;
}

/* --- Course Plan Specific Styles --- */


.guidance-box {
  background: linear-gradient(135deg, rgba(14, 165, 233, 0.14) 0%, rgba(240, 249, 255, 0.92) 100%);
  border: 1px solid rgba(14, 165, 233, 0.28);
  border-radius: var(--portal-radius);
  overflow: hidden;
}

.guidance-toggle {
  width: 100%;
  background: transparent;
  border: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  cursor: pointer;
  font: inherit;
  color: #0f172a;
}

.guidance-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  font-size: 1.05rem;
  letter-spacing: 0.02em;
  color: #0284c7;
}

.guidance-title::before {
  content: "📋";
  font-size: 1.1rem;
}

.guidance-hint {
  font-size: 0.75rem;
  color: #64748b;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.guidance-arrow {
  transition: transform 0.2s ease;
  color: #64748b;
}

.guidance-box[data-open="true"] .guidance-arrow {
  transform: rotate(180deg);
}

.guidance-content-wrapper {
  overflow: hidden;
  transition: max-height 0.3s ease;
  max-height: 0;
  border-top: 1px solid rgba(148, 163, 184, 0.18);
}

.guidance-content {
  padding: 16px 20px 20px 20px;
  color: #475569;
  font-size: 0.95rem;
  line-height: 1.6;
}

.guidance-content ul {
  margin: 0;
  padding-left: 20px;
}

.guidance-content li {
  margin-bottom: 10px;
}

.guidance-content a {
  color: #0284c7;
  text-decoration: underline;
}

.guidance-content a:hover {
  color: #0369a1;
}

.guidance-content strong {
  color: #be185d;
  font-weight: 600;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 24px;
}

table th,
table td {
  border: 1px solid rgba(148, 163, 184, 0.35);
  padding: 12px 14px;
  text-align: left;
}

table th {
  background: rgba(148, 197, 239, 0.28);
  font-weight: 600;
  color: #0f172a;
  letter-spacing: 0.04em;
}

table tr:nth-child(even) {
  background: rgba(248, 250, 252, 0.82);
}

table tr:hover {
  background: rgba(14, 165, 233, 0.12);
}


.course-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 28px;
  background: rgba(255, 255, 255, 0.97);
  border-radius: var(--portal-radius);
  overflow: hidden;
  border: 1px solid rgba(148, 163, 184, 0.22);
}

.course-table th {
  background: rgba(241, 245, 249, 0.92);
  color: #0f172a;
  padding: 10px 8px;
  text-align: center;
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  text-transform: none;
}

.course-table td {
  padding: 10px 8px;
  border: 1px solid rgba(148, 163, 184, 0.22);
  vertical-align: top;
  min-height: 46px;
  background: rgba(248, 250, 252, 0.85);
}

.course-table tr:nth-child(even) {
  background: rgba(241, 245, 249, 0.9);
}

.category-header {
  background: rgba(226, 232, 240, 0.6) !important;
  font-weight: 600;
  color: #0369a1;
  letter-spacing: 0.03em;
  padding: 10px 8px;
  border-right: 2px solid rgba(148, 163, 184, 0.25);
}

.course-item {
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid rgba(148, 163, 184, 0.28);
  border-radius: var(--portal-radius);
  padding: 6px 8px;
  margin: 2px 0;
  font-size: 0.82rem;
  color: #0f172a;
  transition: border-color 0.2s ease;
}

.course-item:hover {
  border-color: rgba(14, 165, 233, 0.5);
}

.course-item.required {
  background: rgba(148, 163, 184, 0.18);
  border-color: rgba(148, 163, 184, 0.4);
  color: #1e293b;
}

.course-item.method {
  background: rgba(196, 181, 253, 0.22);
  border-color: rgba(124, 58, 237, 0.35);
  color: #5b21b6;
}

.course-item.practice {
  background: rgba(191, 219, 254, 0.24);
  border-color: rgba(2, 132, 199, 0.35);
  color: #0369a1;
}

.course-item.other {
  background: rgba(226, 232, 240, 0.32);
  border-color: rgba(148, 163, 184, 0.3);
  color: #475569;
}

.course-item.selected {
  background: rgba(16, 185, 129, 0.16) !important;
  border-color: rgba(5, 150, 105, 0.45) !important;
  color: #065f46 !important;
}

.course-name {
  font-weight: 600;
  margin-bottom: 1px;
  font-size: 0.82rem;
}

.course-teacher {
  font-size: 0.74rem;
  color: #64748b;
  font-style: italic;
  margin-top: 0;
}

.course-info {
  color: #0284c7;
  cursor: pointer;
  transition: color 0.2s ease;
}

.course-info:hover {
  color: #0369a1;
}

.course-tooltip {
  position: fixed;
  background: rgba(15, 23, 42, 0.92);
  color: #f8fafc;
  border: 1px solid rgba(148, 163, 184, 0.3);
  border-radius: var(--portal-radius);
  padding: 10px 14px;
  font-size: 0.8rem;
  box-shadow: 0 20px 40px -30px rgba(15, 23, 42, 0.5);
  z-index: 9999;
  max-width: 280px;
  word-wrap: break-word;
  backdrop-filter: blur(12px);
}

@media (max-width: 768px) {
  .guidance-toggle {
    padding: 14px 16px;
  }

  .guidance-content {
    padding: 14px 16px 16px 16px;
  }

  .course-table {
    font-size: 0.78rem;
  }

  .course-table th,
  .course-table td {
    padding: 10px 8px;
  }

  .course-item {
    font-size: 0.75rem;
    padding: 6px 8px;
  }
}