:root {
  --tracker-bg: #fff;
  --tracker-border: rgba(15, 23, 42, 0.08);
  --tracker-text: #0f172a;
  --tracker-text-muted: #64748b;
  --tracker-primary: #2563eb;
  --tracker-primary-glow: rgba(37, 99, 235, 0.04);
  --tracker-success: #10b981;
  --tracker-success-bg: rgba(16, 185, 129, 0.1);
  --tracker-warning: #d97706;
  --tracker-warning-bg: rgba(245, 158, 11, 0.1);
  --tracker-danger: #dc2626;
  --tracker-danger-bg: rgba(239, 68, 68, 0.1);
  --tracker-radius-md: 8px;
  --tracker-white: #fff;
}

.theme-dark :root,
.theme-dark .curriculum-progress-tracker,
.theme-dark:root {
  --tracker-bg: #090d16;
  --tracker-border: rgba(255, 255, 255, 0.06);
  --tracker-text: #f8fafc;
  --tracker-text-muted: #64748b;
  --tracker-primary: #3b82f6;
  --tracker-primary-glow: rgba(59, 130, 246, 0.06);
  --tracker-success: #34d399;
  --tracker-success-bg: rgba(52, 211, 153, 0.15);
  --tracker-warning: #fbbf24;
  --tracker-warning-bg: rgba(251, 191, 36, 0.15);
  --tracker-danger: #f87171;
  --tracker-danger-bg: rgba(248, 113, 113, 0.15);
}

.curriculum-progress-tracker {
  background-color: var(--tracker-bg);
  color: var(--tracker-text);
  padding: 1.5rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 3.5rem;
  width: 100%;
  box-sizing: border-box;
}

@media (min-width: 768px) {
  .curriculum-progress-tracker {
    padding: 3rem 2.5rem;
  }
}

.tracker-status-banner {
  color: var(--tracker-danger);
  font-size: 0.8125rem;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--tracker-danger);
}

.tracker-header {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  padding-top: 1rem;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid var(--tracker-border);
}

@media (min-width: 1024px) {
  .tracker-header {
    flex-direction: row;
    justify-content: space-between;
    align-items: flex-end;
  }
}

.tracker-header-title-section {
  flex-grow: 1;
}

.tracker-header-controls {
  display: flex;
  gap: 2rem;
  align-items: flex-end;
}

.tracker-input-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.tracker-input-group label {
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--tracker-text-muted);
}

.tracker-title-input {
  font-size: 2rem;
  font-weight: 800;
  background: transparent;
  border: none;
  border-bottom: 1px solid transparent;
  color: var(--tracker-text);
  outline: none;
  padding: 0.25rem 0;
  width: 100%;
  max-width: 350px;
  transition: border-color 0.2s;
}

.tracker-title-input:focus {
  border-color: var(--tracker-primary);
}

.tracker-number-input {
  font-size: 1.125rem;
  font-weight: 600;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--tracker-border);
  color: var(--tracker-text);
  padding: 0.25rem 0;
  outline: none;
  width: 90px;
  transition: border-color 0.2s;
}

.tracker-number-input:focus {
  border-color: var(--tracker-primary);
}

.tracker-header-actions {
  display: flex;
  gap: 1rem;
}

.tracker-btn {
  font-size: 0.8125rem;
  font-weight: 600;
  padding: 0.625rem 1.25rem;
  border-radius: var(--tracker-radius-md);
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  border: none;
}

.tracker-btn-primary {
  background-color: var(--tracker-primary);
  color: var(--tracker-white);
}

.tracker-btn-primary:hover {
  opacity: 0.9;
  transform: translateY(-0.5px);
}

.tracker-btn-ghost {
  background-color: transparent;
  border: 1px solid var(--tracker-border);
  color: var(--tracker-text);
}

.tracker-btn-ghost:hover {
  background-color: var(--tracker-primary-glow);
  border-color: var(--tracker-primary);
}

.tracker-btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.75rem;
}

.tracker-precision-dashboard {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.tracker-kpi-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 2rem;
}

.tracker-kpi {
  display: flex;
  flex-direction: column;
}

.tracker-kpi-label {
  font-size: 0.6875rem;
  font-weight: 700;
  color: var(--tracker-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.tracker-kpi-value {
  font-size: 3.5rem;
  font-weight: 400;
  letter-spacing: -0.04em;
  color: var(--tracker-text);
  margin-top: 0.25rem;
  line-height: 1;
}

.tracker-progress-section {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding-top: 1rem;
}

.tracker-progress-info {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}

.tracker-progress-info-label {
  font-size: 0.6875rem;
  font-weight: 700;
  color: var(--tracker-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.tracker-progress-info-value {
  font-size: 0.875rem;
  color: var(--tracker-text);
}

.tracker-dynamic-progress {
  width: 100%;
}

.tracker-progress-svg {
  width: 100%;
  height: 2px;
  display: block;
}

.tracker-progress-svg-track {
  stroke: var(--tracker-border);
  stroke-width: 2;
}

.tracker-progress-svg-fill {
  stroke: var(--tracker-primary);
  stroke-width: 2;
  transition: x2 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.tracker-advisor-banner {
  font-size: 0.8125rem;
  padding: 0.5rem 1rem;
  border-left: 2px solid transparent;
  display: inline-block;
  width: fit-content;
}

.advisor-success {
  border-color: var(--tracker-success);
  color: var(--tracker-success);
}

.advisor-warning {
  border-color: var(--tracker-warning);
  color: var(--tracker-warning);
}

.advisor-impossible {
  border-color: var(--tracker-danger);
  color: var(--tracker-danger);
}

.tracker-workspace {
  display: flex;
  flex-direction: column;
  gap: 3.5rem;
}

.tracker-semesters-container {
  display: flex;
  flex-direction: column;
  gap: 3.5rem;
}

.tracker-semester-card {
  background: transparent;
  border: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.tracker-semester-card:hover .tracker-btn-delete {
  opacity: 1;
}

.tracker-semester-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--tracker-border);
  padding-bottom: 0.75rem;
}

.tracker-semester-title-input {
  font-size: 1.25rem;
  font-weight: 700;
  background: transparent;
  border: none;
  color: var(--tracker-text);
  outline: none;
  flex-grow: 1;
  padding: 0.25rem 0;
}

.tracker-btn-delete {
  background: none;
  border: none;
  font-size: 1.25rem;
  color: var(--tracker-text-muted);
  cursor: pointer;
  opacity: 0;
  transition: opacity 0.2s ease, color 0.2s ease;
  padding: 0 0.5rem;
}

.tracker-btn-delete:hover {
  color: var(--tracker-danger);
}

.tracker-courses-list {
  display: flex;
  flex-direction: column;
}

.tracker-course-row {
  border-bottom: 1px solid var(--tracker-border);
  padding: 0.75rem 1rem;
  border-radius: var(--tracker-radius-md);
  transition: background-color 0.2s;
}

.tracker-course-row:hover {
  background-color: var(--tracker-primary-glow);
}

.tracker-course-row:hover .tracker-btn-delete-course {
  opacity: 1;
}

.tracker-course-row-grid {
  display: grid;
  grid-template-columns: 3.5fr 1fr 1.5fr 1fr auto;
  gap: 1rem;
  align-items: center;
}

.tracker-course-name {
  font-size: 0.875rem;
  font-weight: 500;
  background: transparent;
  border: none;
  color: var(--tracker-text);
  outline: none;
  width: 100%;
}

.tracker-course-credits {
  font-size: 0.875rem;
  background: transparent;
  border: none;
  border-bottom: 1px solid transparent;
  color: var(--tracker-text);
  outline: none;
  text-align: center;
  width: 100%;
  padding-bottom: 2px;
}

.tracker-course-credits:focus {
  border-color: var(--tracker-primary);
}

.tracker-course-status {
  font-size: 0.75rem;
  font-weight: 700;
  background: transparent;
  border: none;
  outline: none;
  width: 100%;
  cursor: pointer;
  padding: 0.25rem 0;
}

.tracker-course-status.status-completed {
  color: var(--tracker-success);
}

.tracker-course-status.status-in-progress {
  color: var(--tracker-warning);
}

.tracker-course-status.status-planned {
  color: var(--tracker-text-muted);
}

.tracker-course-grade {
  font-size: 0.875rem;
  background: transparent;
  border: none;
  border-bottom: 1px solid transparent;
  color: var(--tracker-text);
  outline: none;
  text-align: center;
  width: 100%;
  padding-bottom: 2px;
}

.tracker-course-grade:focus {
  border-color: var(--tracker-primary);
}

.tracker-btn-delete-course {
  background: none;
  border: none;
  font-size: 1.125rem;
  color: var(--tracker-text-muted);
  cursor: pointer;
  opacity: 0;
  transition: opacity 0.2s ease, color 0.2s ease;
  padding: 0 0.5rem;
}

.tracker-btn-delete-course:hover {
  color: var(--tracker-danger);
}

.tracker-semester-card-footer {
  display: flex;
  justify-content: flex-start;
  padding-top: 1rem;
}

.tracker-workspace-actions {
  display: flex;
  justify-content: center;
  padding-top: 2rem;
}

.tracker-security-hint {
  font-size: 0.75rem;
  color: var(--tracker-text-muted);
  text-align: center;
}