/* ╔══════════════════════════════════════════════════════════════╗
   ║  SCHEDULER — Course Schedule Optimizer Styles                ║
   ╚══════════════════════════════════════════════════════════════╝ */

/* ── Section containers ─────────────────────────────────────── */
.sched-section {
  max-width: 1400px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
}

.sched-title {
  font-family: var(--font-display);
  font-size: 1.8rem;
  color: var(--gold);
  margin-bottom: .25rem;
}

.sched-subtitle {
  font-size: .85rem;
  color: var(--light-gray);
  margin-bottom: 1.5rem;
}

.section-heading {
  font-family: var(--font-display);
  font-size: 1.2rem;
  color: var(--gold);
  margin-bottom: 1rem;
  padding-bottom: .5rem;
  border-bottom: 2px solid var(--gold);
}

/* ── Upload cards ───────────────────────────────────────────── */
.upload-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.upload-card {
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 8px;
  padding: 1.2rem;
}

.upload-card h3 {
  font-family: var(--font-display);
  font-size: .9rem;
  color: var(--white);
  margin-bottom: .4rem;
}

.upload-desc {
  font-size: .75rem;
  color: var(--light-gray);
  margin-bottom: .8rem;
  line-height: 1.4;
}

.upload-btn {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  padding: .45rem .9rem;
  background: rgba(245,184,10,.12);
  border: 1px solid var(--gold);
  border-radius: 5px;
  color: var(--gold);
  font-size: .78rem;
  font-weight: 600;
  cursor: pointer;
  transition: background .15s, color .15s;
}

.upload-btn:hover {
  background: var(--gold);
  color: var(--dark-brown);
}

.upload-icon { font-size: 1rem; }

.upload-status {
  display: block;
  margin-top: .5rem;
  font-size: .7rem;
  color: var(--light-gray);
  font-family: var(--font-mono);
}

.upload-status.loaded { color: var(--teal); }

/* ── Optional badge ────────────────────────────────────────── */
.optional-badge {
  font-size: .6rem;
  color: var(--light-gray);
  font-weight: 400;
  font-family: var(--font-body);
  vertical-align: middle;
  margin-left: .3rem;
}

/* ── Weight sliders ────────────────────────────────────────── */
.weight-sliders {
  margin-bottom: 1.5rem;
}

.weight-slider-group {
  margin-bottom: 1rem;
  padding: .6rem .8rem;
  background: rgba(255,255,255,.03);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 6px;
}

.weight-slider-group label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: .8rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: .35rem;
  font-family: var(--font-body);
}

.slider-value {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.6rem;
  height: 1.6rem;
  background: rgba(245,184,10,.15);
  border: 1px solid var(--gold);
  border-radius: 4px;
  color: var(--gold);
  font-size: .72rem;
  font-weight: 700;
  font-family: var(--font-mono);
}

.weight-slider-group input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  background: rgba(255,255,255,.1);
  border-radius: 3px;
  outline: none;
  cursor: pointer;
}

.weight-slider-group input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 16px;
  height: 16px;
  background: var(--gold);
  border-radius: 50%;
  border: 2px solid var(--dark-brown);
  cursor: pointer;
  box-shadow: 0 0 4px rgba(245,184,10,.4);
}

.weight-slider-group input[type="range"]::-moz-range-thumb {
  width: 16px;
  height: 16px;
  background: var(--gold);
  border-radius: 50%;
  border: 2px solid var(--dark-brown);
  cursor: pointer;
  box-shadow: 0 0 4px rgba(245,184,10,.4);
}

.weight-slider-group input[type="range"]::-webkit-slider-runnable-track {
  height: 6px;
  border-radius: 3px;
}

.weight-slider-group input[type="range"]::-moz-range-track {
  height: 6px;
  background: rgba(255,255,255,.1);
  border-radius: 3px;
}

.weight-slider-group input[type="range"]:focus {
  outline: none;
}

.weight-slider-group input[type="range"]:focus::-webkit-slider-thumb {
  box-shadow: 0 0 0 3px rgba(245,184,10,.25);
}

.slider-desc {
  font-size: .68rem;
  color: var(--light-gray);
  margin-top: .3rem;
  line-height: 1.3;
}

/* ── Action buttons ─────────────────────────────────────────── */
.upload-actions {
  display: flex;
  gap: .8rem;
  margin-top: .5rem;
}

.action-btn {
  padding: .5rem 1.2rem;
  border-radius: 5px;
  font-size: .8rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid;
  transition: background .15s, color .15s, opacity .15s;
}

.action-btn:disabled {
  opacity: .4;
  cursor: not-allowed;
}

.action-btn.primary {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--dark-brown);
}

.action-btn.primary:hover:not(:disabled) {
  background: var(--yellow);
  border-color: var(--yellow);
}

.action-btn.secondary {
  background: transparent;
  border-color: var(--light-gray);
  color: var(--light-gray);
}

.action-btn.secondary:hover:not(:disabled) {
  border-color: var(--gold);
  color: var(--gold);
}

/* ── Filter bar ─────────────────────────────────────────────── */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 1rem;
  margin-bottom: 1.2rem;
  padding: .8rem 1rem;
  background: rgba(255,255,255,.04);
  border-radius: 6px;
  border: 1px solid rgba(255,255,255,.08);
}

.filter-group {
  display: flex;
  flex-direction: column;
  gap: .25rem;
}

.filter-group label {
  font-size: .65rem;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--gold);
  font-weight: 600;
}

.filter-group select {
  padding: .35rem .6rem;
  background: var(--dark-brown);
  border: 1px solid rgba(255,255,255,.2);
  border-radius: 4px;
  color: var(--white);
  font-size: .78rem;
  font-family: var(--font-body);
  min-width: 140px;
}

.filter-actions {
  display: flex;
  gap: .5rem;
  margin-left: auto;
}

/* ── Toggle buttons ─────────────────────────────────────────── */
.toggle-group {
  display: flex;
  border: 1px solid rgba(255,255,255,.2);
  border-radius: 4px;
  overflow: hidden;
}

.toggle-btn {
  padding: .35rem .7rem;
  background: transparent;
  border: none;
  color: var(--light-gray);
  font-size: .72rem;
  font-weight: 600;
  cursor: pointer;
  transition: background .15s, color .15s;
  font-family: var(--font-body);
}

.toggle-btn + .toggle-btn { border-left: 1px solid rgba(255,255,255,.2); }

.toggle-btn.active {
  background: var(--gold);
  color: var(--dark-brown);
}

.toggle-btn:hover:not(.active) {
  background: rgba(255,255,255,.08);
  color: var(--white);
}

/* ── Day tabs ───────────────────────────────────────────────── */
.day-tabs {
  display: flex;
  gap: 0;
  margin-bottom: 0;
  border-bottom: 2px solid var(--gold);
}

.day-tab {
  padding: .55rem 1.2rem;
  background: transparent;
  border: 1px solid rgba(255,255,255,.1);
  border-bottom: none;
  border-radius: 6px 6px 0 0;
  color: var(--light-gray);
  font-size: .78rem;
  font-weight: 600;
  cursor: pointer;
  transition: background .15s, color .15s;
  font-family: var(--font-body);
  margin-bottom: -2px;
}

.day-tab:hover:not(.active) {
  background: rgba(255,255,255,.06);
  color: var(--white);
}

.day-tab.active {
  background: rgba(245,184,10,.1);
  color: var(--gold);
  border-color: var(--gold);
  border-bottom: 2px solid rgba(0,0,0,.25);
}

/* ── Weekly grid ────────────────────────────────────────────── */
.grid-wrapper {
  overflow-x: auto;
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 8px;
  background: rgba(0,0,0,.25);
}

.weekly-grid {
  display: grid;
  grid-template-columns: 60px repeat(5, 1fr);
  min-width: 800px;
  position: relative;
}

.weekly-grid.single-day {
  grid-template-columns: 70px 1fr;
  min-width: 0;
}

/* Header row */
.grid-header {
  background: rgba(245,184,10,.1);
  padding: .5rem .3rem;
  text-align: center;
  font-size: .72rem;
  font-weight: 700;
  color: var(--gold);
  border-bottom: 2px solid var(--gold);
  position: sticky;
  top: 0;
  z-index: 5;
}

/* Time labels */
.grid-time {
  padding: .15rem .3rem;
  font-size: .6rem;
  font-family: var(--font-mono);
  color: var(--light-gray);
  text-align: right;
  border-right: 1px solid rgba(255,255,255,.08);
  min-height: 20px;
}

/* Day columns */
.grid-day-col {
  position: relative;
  border-right: 1px solid rgba(255,255,255,.05);
  min-height: 600px;
}

.grid-day-col:last-child { border-right: none; }

/* Half-hour line markers */
.grid-line {
  position: absolute;
  left: 0; right: 0;
  height: 1px;
  background: rgba(255,255,255,.06);
  pointer-events: none;
}

.grid-line.hour { background: rgba(255,255,255,.12); }

/* Course blocks */
.course-block {
  position: absolute;
  /* left and width set dynamically by JS overlap layout */
  border-radius: 4px;
  padding: .3rem .4rem;
  font-size: .65rem;
  line-height: 1.3;
  overflow: hidden;
  cursor: pointer;
  border: 1.5px solid transparent;
  transition: border-color .15s, opacity .15s;
  z-index: 2;
}

.course-block:hover {
  z-index: 10;
  border-color: var(--white);
}

.course-block .block-code {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: .62rem;
}

.course-block .block-instructor {
  font-size: .58rem;
  opacity: .8;
}

.course-block .block-time {
  font-size: .55rem;
  font-family: var(--font-mono);
  opacity: .7;
}

/* Tags on course blocks */
.block-tags {
  display: flex;
  gap: .2rem;
  margin-top: .15rem;
  flex-wrap: wrap;
}

.block-tag {
  font-size: .5rem;
  padding: .05rem .3rem;
  border-radius: 3px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .04em;
}

.block-tag.tag-fr  { background: #2d6a4f; color: #b7e4c7; }
.block-tag.tag-so  { background: #1b4965; color: #a9d6e5; }
.block-tag.tag-jr  { background: #6a2c70; color: #d4a5d6; }
.block-tag.tag-sr  { background: #7f4f24; color: #ddb892; }

.block-tag.tag-me  { background: rgba(245,184,10,.2); color: var(--gold); }
.block-tag.tag-be  { background: rgba(0,99,84,.2);    color: var(--light-blue); }
.block-tag.tag-ge  { background: rgba(199,105,23,.2); color: var(--orange); }

/* Conflict highlight */
.course-block.conflict {
  border-color: #ff4444 !important;
  box-shadow: 0 0 0 2px rgba(255,68,68,.3);
  animation: pulse-conflict 1.5s ease-in-out infinite;
}

@keyframes pulse-conflict {
  0%, 100% { box-shadow: 0 0 0 2px rgba(255,68,68,.3); }
  50%      { box-shadow: 0 0 0 4px rgba(255,68,68,.15); }
}

/* Locked course */
.course-block.locked {
  border-color: var(--teal) !important;
  box-shadow: 0 0 0 1.5px var(--teal);
}

.course-block.locked::after {
  content: "\1F512";
  position: absolute;
  top: 2px; right: 4px;
  font-size: .55rem;
}

/* External (frozen) courses — dimmer */
.course-block.external {
  opacity: .5;
  border-style: dashed;
  cursor: default;
}

.course-block.filtered-out {
  display: none;
}

/* ── Color palette for instructor assignment ────────────────── */
.course-block.color-0  { background: #1b4332; }
.course-block.color-1  { background: #1a3a5c; }
.course-block.color-2  { background: #5a1a5e; }
.course-block.color-3  { background: #5c3d1a; }
.course-block.color-4  { background: #1a5c5c; }
.course-block.color-5  { background: #5c1a2a; }
.course-block.color-6  { background: #2a1a5c; }
.course-block.color-7  { background: #3d5c1a; }

/* ── Constraint Satisfaction Report ────────────────────────── */
.analysis-subheading {
  font-family: var(--font-display);
  font-size: 1rem;
  color: var(--white);
  margin-bottom: .8rem;
  margin-top: 1.2rem;
}

.constraint-report {
  margin-bottom: 2rem;
}

/* Overall score gauge */
.overall-score {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.2rem;
}

.score-gauge {
  flex: 1;
  height: 12px;
  background: rgba(255,255,255,.08);
  border-radius: 6px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.1);
}

.score-gauge-fill {
  height: 100%;
  border-radius: 6px;
  background: linear-gradient(90deg, #ff4444, var(--gold), var(--teal));
  transition: width .6s ease;
}

.score-label {
  font-size: 1.2rem;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--gold);
  min-width: 3.5rem;
  text-align: right;
}

/* Per-objective constraint cards */
.constraint-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: .8rem;
}

.constraint-card {
  background: rgba(255,255,255,.04);
  border: 2px solid rgba(255,255,255,.1);
  border-radius: 8px;
  padding: .8rem 1rem;
  transition: border-color .2s;
}

.constraint-card.satisfied {
  border-color: var(--teal);
}

.constraint-card.partial {
  border-color: var(--gold);
}

.constraint-card.violated {
  border-color: #ff4444;
}

.constraint-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: .3rem;
}

.constraint-name {
  font-size: .8rem;
  font-weight: 600;
  color: var(--white);
}

.constraint-score {
  font-size: .9rem;
  font-weight: 700;
  font-family: var(--font-mono);
}

.constraint-card.satisfied .constraint-score { color: var(--teal); }
.constraint-card.partial .constraint-score   { color: var(--gold); }
.constraint-card.violated .constraint-score  { color: #ff6b6b; }

.constraint-violations-count {
  font-size: .7rem;
  color: var(--light-gray);
  margin-bottom: .3rem;
}

.constraint-violations {
  margin-top: .4rem;
  padding-top: .4rem;
  border-top: 1px solid rgba(255,255,255,.08);
}

.constraint-violations ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.constraint-violations li {
  font-size: .7rem;
  color: var(--light-gray);
  padding: .2rem 0;
  border-bottom: 1px solid rgba(255,255,255,.04);
}

.constraint-violations li:last-child {
  border-bottom: none;
}

.constraint-toggle {
  background: none;
  border: none;
  color: var(--gold);
  font-size: .68rem;
  font-weight: 600;
  cursor: pointer;
  padding: .2rem 0;
  margin-top: .2rem;
}

.constraint-toggle:hover {
  text-decoration: underline;
}

/* ── Student Conflict Analysis ─────────────────────────────── */
.student-conflict-analysis {
  margin-top: 1.5rem;
}

.cohort-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1rem;
}

.cohort-card {
  background: rgba(255,255,255,.04);
  border: 2px solid rgba(255,255,255,.1);
  border-radius: 8px;
  padding: .8rem 1rem;
  transition: border-color .2s;
}

.cohort-card.no-conflicts {
  border-color: var(--teal);
}

.cohort-card.has-conflicts {
  border-color: #ff4444;
}

.cohort-card-header {
  display: flex;
  align-items: center;
  gap: .5rem;
  margin-bottom: .5rem;
}

.cohort-year-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  font-size: .6rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .04em;
  flex-shrink: 0;
}

.cohort-year-badge.fr { background: #2d6a4f; color: #b7e4c7; }
.cohort-year-badge.so { background: #1b4965; color: #a9d6e5; }
.cohort-year-badge.jr { background: #6a2c70; color: #d4a5d6; }
.cohort-year-badge.sr { background: #7f4f24; color: #ddb892; }

.cohort-name {
  font-size: .82rem;
  font-weight: 600;
  color: var(--white);
}

.cohort-courses {
  display: flex;
  flex-wrap: wrap;
  gap: .3rem;
  margin-bottom: .5rem;
}

.cohort-course {
  font-size: .68rem;
  font-family: var(--font-mono);
  padding: .15rem .4rem;
  background: rgba(255,255,255,.06);
  border-radius: 3px;
  color: var(--light-gray);
}

.cohort-overlaps {
  border-top: 1px solid rgba(255,255,255,.08);
  padding-top: .4rem;
}

.overlap-pair {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: .25rem 0;
  border-bottom: 1px solid rgba(255,255,255,.04);
}

.overlap-pair:last-child { border-bottom: none; }

.overlap-courses {
  font-size: .72rem;
  font-weight: 600;
  color: #ff6b6b;
}

.overlap-time {
  font-size: .65rem;
  font-family: var(--font-mono);
  color: var(--light-gray);
}

.cohort-card.no-conflicts .cohort-overlaps {
  display: none;
}

/* ── Legacy conflict report (kept for backward compat) ─────── */
.conflict-summary {
  display: flex;
  gap: 1.5rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.conflict-stat {
  padding: .6rem 1rem;
  border-radius: 6px;
  font-size: .8rem;
  font-weight: 600;
}

.conflict-stat.good  { background: rgba(0,99,84,.15); color: var(--light-blue); border: 1px solid var(--teal); }
.conflict-stat.warn  { background: rgba(255,200,0,.1); color: var(--gold);       border: 1px solid var(--gold); }
.conflict-stat.bad   { background: rgba(255,68,68,.1); color: #ff6b6b;          border: 1px solid #ff4444; }

.conflict-list {
  display: flex;
  flex-direction: column;
  gap: .6rem;
}

.conflict-card {
  background: rgba(255,68,68,.06);
  border: 1px solid rgba(255,68,68,.2);
  border-radius: 6px;
  padding: .7rem 1rem;
}

.conflict-card .conflict-type {
  font-size: .65rem;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: #ff6b6b;
  font-weight: 700;
  margin-bottom: .2rem;
}

.conflict-card .conflict-detail {
  font-size: .78rem;
  color: var(--white);
}

.conflict-card .conflict-reason {
  font-size: .7rem;
  color: var(--light-gray);
  margin-top: .2rem;
}

/* ── Load summary table ─────────────────────────────────────── */
.load-table-wrap {
  overflow-x: auto;
  border-radius: 6px;
  border: 1px solid rgba(255,255,255,.1);
}

.load-table {
  width: 100%;
  border-collapse: collapse;
  font-size: .78rem;
}

.load-table th {
  background: rgba(245,184,10,.1);
  color: var(--gold);
  font-size: .68rem;
  text-transform: uppercase;
  letter-spacing: .06em;
  padding: .6rem .8rem;
  text-align: left;
  border-bottom: 2px solid var(--gold);
}

.load-table td {
  padding: .5rem .8rem;
  border-bottom: 1px solid rgba(255,255,255,.06);
  color: var(--white);
}

.load-table tr:hover td {
  background: rgba(255,255,255,.04);
}

.load-table .load-high {
  color: #ff6b6b;
  font-weight: 600;
}

.load-table .load-low {
  color: var(--light-blue);
}

/* Pref score column */
.pref-score {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: .75rem;
}

.pref-score.high { color: var(--teal); }
.pref-score.mid  { color: var(--gold); }
.pref-score.low  { color: #ff6b6b; }

/* Balance indicator column */
.balance-indicator {
  font-size: .72rem;
  font-weight: 600;
}

.balance-indicator.above {
  color: #ff6b6b;
}

.balance-indicator.below {
  color: var(--light-blue);
}

.balance-indicator.balanced {
  color: var(--teal);
}

/* ── Course detail panel (minimal-impact change) ───────────── */
.course-detail-panel {
  position: fixed;
  right: 0;
  top: 0;
  width: 380px;
  height: 100vh;
  background: var(--dark-brown);
  border-left: 2px solid var(--gold);
  transform: translateX(100%);
  transition: transform .3s;
  z-index: 100;
  overflow-y: auto;
  padding: 1.2rem;
}

.course-detail-panel.open {
  transform: translateX(0);
}

.course-detail-panel h3 {
  font-family: var(--font-display);
  font-size: 1rem;
  color: var(--gold);
  margin-bottom: .8rem;
  padding-bottom: .4rem;
  border-bottom: 1px solid rgba(255,255,255,.1);
}

.course-detail-panel .detail-row {
  display: flex;
  justify-content: space-between;
  padding: .3rem 0;
  font-size: .78rem;
  border-bottom: 1px solid rgba(255,255,255,.04);
}

.course-detail-panel .detail-label {
  color: var(--light-gray);
}

.course-detail-panel .detail-value {
  color: var(--white);
  font-weight: 600;
}

.course-detail-panel .panel-close {
  position: absolute;
  top: .8rem;
  right: .8rem;
  background: none;
  border: none;
  color: var(--light-gray);
  font-size: 1.2rem;
  cursor: pointer;
  padding: .2rem;
  line-height: 1;
}

.course-detail-panel .panel-close:hover {
  color: var(--white);
}

.move-options-heading {
  font-size: .8rem;
  font-weight: 600;
  color: var(--white);
  margin-top: 1rem;
  margin-bottom: .5rem;
}

/* ── Suggestion cards ─────────────────────────────────────── */
.suggestion-spinner {
  text-align: center;
  color: var(--gold);
  font-size: .8rem;
  padding: 1.5rem 0;
  animation: pulse-text 1.2s ease-in-out infinite;
}
@keyframes pulse-text {
  0%, 100% { opacity: .5; }
  50%      { opacity: 1; }
}

.move-option {
  display: flex;
  flex-direction: column;
  gap: .3rem;
  padding: .5rem .6rem;
  margin-bottom: .4rem;
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 6px;
  cursor: pointer;
  transition: border-color .15s, background .15s;
}

.move-option:hover {
  border-color: var(--gold);
  background: rgba(245,184,10,.06);
}

.move-option.best {
  border-color: var(--teal);
  background: rgba(0,99,84,.08);
}

.move-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.move-time {
  font-size: .78rem;
  font-family: var(--font-mono);
  color: var(--white);
}

.score-delta {
  font-size: .72rem;
  font-weight: 700;
  font-family: var(--font-mono);
}
.score-delta.negative { color: #4ecdc4; }
.score-delta.positive { color: #ff6b6b; }
.score-delta.neutral  { color: var(--light-gray); }

.move-impact {
  display: flex;
  align-items: center;
  gap: .4rem;
}

.impact-indicator {
  display: inline-flex;
  align-items: center;
  gap: .3rem;
  font-size: .68rem;
  font-weight: 600;
  padding: .15rem .5rem;
  border-radius: 3px;
}

.impact-indicator.impact-none {
  background: rgba(0,99,84,.15);
  color: var(--teal);
}

.impact-indicator.impact-low {
  background: rgba(245,184,10,.12);
  color: var(--gold);
}

.impact-indicator.impact-high {
  background: rgba(255,68,68,.12);
  color: #ff6b6b;
}

/* ── Cascade list (displaced courses) ────────────────────── */
.cascade-summary.free-move {
  font-size: .7rem;
  color: var(--teal);
  font-style: italic;
}

.cascade-list {
  padding-left: .4rem;
  border-left: 2px solid rgba(255,255,255,.08);
  margin-top: .2rem;
}

.cascade-item {
  font-size: .68rem;
  font-family: var(--font-mono);
  color: var(--light-gray);
  padding: .15rem 0 .15rem .4rem;
}

/* ── Flash animation for moved courses ───────────────────── */
@keyframes flash-gold {
  0%   { box-shadow: 0 0 0 0 rgba(245,184,10,.7); }
  50%  { box-shadow: 0 0 12px 4px rgba(245,184,10,.5); }
  100% { box-shadow: 0 0 0 0 rgba(245,184,10,0); }
}
.course-block.flash {
  animation: flash-gold .8s ease-out;
}

/* ── Blocked/impossible moves ──────────────────────────────── */
.move-option.blocked {
  opacity: 0.4;
  pointer-events: none;
  text-decoration: line-through;
}

/* ── Print styles ───────────────────────────────────────────── */
@media print {
  body { background: white; color: black; }
  .sched-title, .section-heading { color: #333; }
  .upload-grid, .upload-actions, .filter-actions, #btn-rerun { display: none; }
  .weight-sliders { display: none; }
  .course-detail-panel { display: none; }
  .grid-wrapper { border-color: #ccc; }
  .course-block { color: black; -webkit-print-color-adjust: exact; print-color-adjust: exact; }
  .filter-bar { background: #f5f5f5; border-color: #ddd; }
  .filter-group label { color: #333; }
}