:root {
  color-scheme: light;
  --bg: #eef1f4;
  --surface: #ffffff;
  --surface-strong: #eef6f8;
  --ink: #172125;
  --muted: #617076;
  --line: #d9e0df;
  --brand: #0f7f7a;
  --brand-dark: #0b5c59;
  --accent: #ef7d2d;
  --ok: #1f7a4d;
  --warn: #b45a18;
  --bad: #b33a3a;
  --neon-cyan: #42d7d2;
  --neon-amber: #ffb64c;
  --neon-pink: #ff6ca8;
  --shadow: 0 16px 40px rgba(23, 33, 37, 0.09);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  position: relative;
  min-height: 100vh;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 15% 5%, rgba(66, 215, 210, 0.22), transparent 24%),
    radial-gradient(circle at 82% 12%, rgba(255, 182, 76, 0.2), transparent 22%),
    radial-gradient(circle at 45% 100%, rgba(255, 108, 168, 0.12), transparent 28%),
    linear-gradient(180deg, #eef5f8 0%, #f6f7f2 42%, #eef4ef 100%);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic", "Yu Gothic UI", sans-serif;
  line-height: 1.5;
}

body::before,
body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
}

body::before {
  z-index: 0;
  background:
    radial-gradient(circle at 20% 20%, rgba(20, 108, 104, 0.12), transparent 36%),
    radial-gradient(circle at 78% 18%, rgba(225, 183, 44, 0.12), transparent 32%),
    radial-gradient(circle at 50% 85%, rgba(214, 66, 131, 0.08), transparent 28%);
  filter: blur(18px);
  animation: bgFloat 16s ease-in-out infinite alternate;
}

body::after {
  z-index: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.18) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.12) 1px, transparent 1px);
  background-size: 100% 28px, 28px 100%;
  opacity: 0.28;
  mix-blend-mode: soft-light;
  animation: scanlines 10s linear infinite;
}

button,
input,
select {
  font: inherit;
}

button,
select,
input {
  border: 1px solid var(--line);
  border-radius: 7px;
  background: #fff;
  color: var(--ink);
}

button {
  min-height: 36px;
  padding: 0 12px;
  cursor: pointer;
  transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease, background-color 160ms ease, color 160ms ease;
}

button:hover {
  border-color: var(--brand);
  transform: translateY(-1px) scale(1.01);
  box-shadow: 0 6px 16px rgba(20, 108, 104, 0.12);
}

button:active {
  transform: translateY(0) scale(0.985);
}

button:focus-visible,
input:focus-visible,
select:focus-visible {
  outline: 2px solid rgba(66, 215, 210, 0.5);
  outline-offset: 2px;
}

.app-shell {
  width: min(3200px, calc(100vw - 16px));
  margin: 0 auto;
  padding: 24px 0 32px;
  position: relative;
  z-index: 1;
}

.topbar {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(245, 251, 251, 0.96));
  box-shadow: var(--shadow), 0 0 0 1px rgba(66, 215, 210, 0.06) inset;
}

.eyebrow {
  margin: 0 0 4px;
  color: var(--brand);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2 {
  margin: 0;
  letter-spacing: 0;
}

h1 {
  font-size: clamp(22px, 3vw, 34px);
  line-height: 1.15;
}

h2 {
  font-size: 18px;
}

.controls {
  display: grid;
  grid-template-columns: minmax(190px, 260px) minmax(92px, 108px) minmax(116px, 128px) minmax(72px, auto);
  gap: 10px;
  align-items: end;
}

.menu-control {
  position: relative;
  display: grid;
  align-content: end;
  min-width: 0;
}

.menu-control > .tree-option {
  justify-content: center;
  width: 100%;
  min-height: 36px;
}

.course-menu-control {
  gap: 8px;
}

.course-actions {
  display: grid;
  grid-template-columns: auto 1fr 1fr;
  align-items: center;
  gap: 8px;
}

.course-actions-label {
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  white-space: nowrap;
}

.course-actions button {
  min-height: 32px;
  padding: 0 12px;
  white-space: nowrap;
}

.settings-menu {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  z-index: 30;
  display: grid;
  gap: 8px;
  min-width: 260px;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow), 0 0 0 1px rgba(66, 215, 210, 0.08) inset;
}

.settings-menu[hidden] {
  display: none !important;
}

.course-selection-menu {
  min-width: 560px;
}

.course-menu-row {
  display: grid;
  grid-template-columns: minmax(94px, 0.7fr) minmax(0, 1.7fr);
  align-items: center;
  gap: 6px;
  padding: 6px;
  border-left: 6px solid transparent;
  border-radius: 7px;
  background: #f7faf8;
}

.course-menu-course-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-width: 0;
}

.course-menu-row span {
  min-width: 0;
  color: var(--ink);
  font-size: 12px;
  font-weight: 800;
}

.course-menu-swatch {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: var(--tree-accent, var(--brand));
  box-shadow: 0 0 0 1px rgba(23, 33, 37, 0.08) inset;
  flex: 0 0 auto;
}

.course-menu-actions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 6px;
  min-width: 0;
}

.course-menu-row button,
.course-menu-unselected {
  min-height: 30px;
  padding: 0 8px;
  font-size: 11px;
  line-height: 1.2;
  overflow-wrap: anywhere;
  white-space: normal;
}

.course-menu-unselected {
  display: inline-flex;
  align-items: center;
  justify-content: flex-start;
  gap: 6px;
  justify-self: stretch;
  border-left: 6px solid transparent;
}

.course-menu-row.tree-section-common,
.course-menu-unselected.tree-section-common {
  background: #eef0f1;
  border-left-color: #7c878b;
}

.course-menu-row.tree-section-system {
  background: #e3f4ef;
  border-left-color: #26947b;
}

.course-menu-row.tree-section-sound {
  background: #fff8bd;
  border-left-color: #e1b72c;
}

.course-menu-row.tree-section-design {
  background: #fde8c7;
  border-left-color: #d69332;
}

.course-menu-row.tree-section-movie {
  background: #edf7d9;
  border-left-color: #8dbd3d;
}

.effects-menu {
  min-width: 180px;
}

.gpa-menu {
  min-width: 220px;
}

.gpa-menu label {
  gap: 4px;
}

.effects-menu .switch {
  justify-content: flex-start;
}

label {
  display: grid;
  gap: 5px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

select,
input {
  min-height: 36px;
  padding: 0 10px;
}

.switch {
  display: flex;
  align-items: center;
  gap: 8px;
  justify-content: center;
  min-height: 36px;
  padding: 0 10px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: #fff;
  color: var(--ink);
  box-shadow: 0 0 0 0 rgba(0, 0, 0, 0);
  transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease;
}

.switch span {
  white-space: nowrap;
}

.switch:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 18px rgba(20, 108, 104, 0.1);
}

.audio-switch {
  min-width: 72px;
  justify-content: center;
  background: linear-gradient(180deg, #fff, #f2fbfb);
}

.audio-switch span {
  letter-spacing: 0.04em;
}

.switch input {
  flex: 0 0 auto;
  min-height: auto;
}

.bgm-roll-panel {
  margin-top: 12px;
  padding: 12px 14px 14px;
  border: 1px solid rgba(66, 215, 210, 0.28);
  border-radius: 8px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(238, 248, 247, 0.94)),
    linear-gradient(90deg, rgba(66, 215, 210, 0.08), rgba(255, 182, 76, 0.08));
  box-shadow: var(--shadow), 0 0 0 1px rgba(66, 215, 210, 0.08) inset;
  overflow: hidden;
}

.bgm-roll-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
}

.bgm-roll-head h2 {
  font-size: 16px;
}

.bgm-roll-stats,
.bgm-roll-legend {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 6px;
}

.bgm-roll-stats span,
.bgm-roll-legend span {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 0 8px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.78);
  color: var(--muted);
  font-size: 11px;
  font-weight: 800;
  white-space: nowrap;
}

.bgm-roll-controls {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 8px;
}

.bgm-roll-controls label {
  display: inline-grid;
  grid-template-columns: auto minmax(72px, 1fr) auto;
  align-items: center;
  gap: 8px;
  min-height: 30px;
  padding: 4px 8px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.76);
  color: var(--muted);
  font-size: 11px;
  font-weight: 800;
}

.bgm-roll-controls input[type="number"] {
  width: 82px;
  min-height: 24px;
  padding: 0 6px;
  font-size: 12px;
}

.bgm-roll-controls button {
  min-height: 24px;
  padding: 0 8px;
  border-radius: 6px;
  font-size: 11px;
  white-space: nowrap;
}

.bgm-roll-controls input[type="range"] {
  width: 132px;
  min-height: 24px;
  padding: 0;
}

.bgm-roll-controls output {
  min-width: 32px;
  color: var(--ink);
  text-align: right;
}

.bgm-roll-legend {
  justify-content: flex-start;
  margin-bottom: 8px;
}

.bgm-roll-legend .legend-base {
  border-color: #cfdad8;
}

.bgm-roll-legend .legend-subtle {
  border-color: rgba(15, 127, 122, 0.35);
  background: rgba(66, 215, 210, 0.12);
  color: var(--brand-dark);
}

.bgm-roll-legend .legend-radical {
  border-color: rgba(179, 58, 58, 0.36);
  background: rgba(255, 108, 168, 0.13);
  color: var(--bad);
}

.bgm-roll-grid {
  display: grid;
  grid-template-columns: minmax(52px, 74px) repeat(16, minmax(22px, 1fr));
  gap: 3px;
  align-items: stretch;
  width: 100%;
  min-width: 0;
}

.bgm-roll-label,
.bgm-roll-step,
.bgm-roll-cell {
  min-height: 25px;
  border-radius: 5px;
  font-size: 10px;
  font-weight: 700;
  line-height: 1;
}

.bgm-roll-label {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding: 0 7px;
  color: var(--muted);
}

.bgm-roll-step {
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(97, 112, 118, 0.18);
  background: rgba(255, 255, 255, 0.62);
  color: #7b888c;
}

.bgm-roll-cell {
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  border: 1px solid rgba(97, 112, 118, 0.16);
  background: rgba(255, 255, 255, 0.54);
  color: #6c777b;
  text-align: center;
}

.bgm-roll-cell.is-active {
  border-color: rgba(15, 127, 122, 0.28);
  background: rgba(15, 127, 122, 0.1);
  color: var(--brand-dark);
}

.bgm-roll-cell.is-subtle {
  border-color: rgba(66, 215, 210, 0.62);
  background: linear-gradient(180deg, rgba(66, 215, 210, 0.28), rgba(255, 255, 255, 0.7));
  color: #075f5d;
  box-shadow: 0 0 0 1px rgba(66, 215, 210, 0.12) inset;
}

.bgm-roll-cell.is-radical {
  border-color: rgba(179, 58, 58, 0.48);
  background:
    linear-gradient(135deg, rgba(255, 108, 168, 0.3), rgba(255, 182, 76, 0.22)),
    rgba(255, 255, 255, 0.56);
  color: #8f233f;
  box-shadow: 0 0 0 1px rgba(255, 108, 168, 0.18) inset, 0 0 12px rgba(255, 108, 168, 0.12);
}

.bgm-roll-cell.is-empty {
  color: transparent;
  background: rgba(245, 249, 248, 0.52);
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin: 14px 0;
}

.meter-card {
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(240, 248, 247, 0.94));
  box-shadow: var(--shadow);
}

.meter-head {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 10px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.meter-head strong {
  color: var(--ink);
}

.meter {
  height: 9px;
  overflow: hidden;
  border-radius: 999px;
  background: #e7ecea;
}

.meter-fill {
  display: flex;
  width: 100%;
  height: 100%;
  transition: width 160ms ease;
}

.meter-segment {
  position: relative;
  display: block;
  height: 100%;
  min-width: 2px;
  overflow: hidden;
  transition: width 560ms cubic-bezier(0.16, 0.82, 0.24, 1), filter 360ms ease;
  will-change: width;
}

.meter-segment.is-growing {
  filter: saturate(1.18) brightness(1.05);
}

.meter-segment.is-growing::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.62), transparent);
  transform: translateX(-120%);
  animation: meterSegmentShine 680ms cubic-bezier(0.16, 0.82, 0.24, 1) both;
}

.meter-segment.is-shrinking {
  filter: saturate(0.9) brightness(0.98);
}

.meter-segment.is-shrinking::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(29, 48, 50, 0.2), rgba(255, 255, 255, 0.48), transparent);
  transform: translateX(120%);
  animation: meterSegmentRecede 680ms cubic-bezier(0.24, 0.72, 0.2, 1) both;
}

.meter-segment:first-child {
  border-radius: 999px 0 0 999px;
}

.meter-segment:last-child {
  border-radius: 0 999px 999px 0;
}

.meter-segment:only-child {
  border-radius: 999px;
}

.meter-segment-default {
  background: var(--brand);
}

.meter-segment-basic {
  background: #4a91bd;
}

.meter-segment-professional {
  background: #26947b;
}

.meter-segment-other {
  background: #b5a052;
}

.meter-segment-basic-required {
  background: #4a91bd;
}

.meter-segment-basic-elective {
  background: #89b9d4;
}

.meter-segment-common {
  background: #7c878b;
}

.meter-segment-system {
  background: #26947b;
}

.meter-segment-movie {
  background: #8dbd3d;
}

.meter-segment-sound {
  background: #e1b72c;
}

.meter-segment-design {
  background: #d69332;
}

.meter-detail {
  margin-top: 8px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

#professionalDetail {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  line-height: 1.35;
}

.professional-breakdown-title,
.professional-breakdown-separator {
  color: var(--muted);
  white-space: nowrap;
}

.professional-breakdown-parts {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 6px;
}

.professional-breakdown-chip,
.professional-breakdown-empty {
  display: inline-flex;
  align-items: center;
  min-height: 22px;
  padding: 0 8px 0 7px;
  border: 1px solid var(--line);
  border-left: 5px solid transparent;
  border-radius: 999px;
  color: var(--ink);
  font-size: 11px;
  font-weight: 800;
  white-space: nowrap;
}

.professional-breakdown-empty {
  background: #f4f6f7;
  color: var(--muted);
}

.professional-breakdown-chip.tree-section-common {
  background: #eef0f1;
  border-left-color: #7c878b;
}

.professional-breakdown-chip.tree-section-system {
  background: #e3f4ef;
  border-left-color: #26947b;
}

.professional-breakdown-chip.tree-section-sound {
  background: #fff8bd;
  border-left-color: #e1b72c;
}

.professional-breakdown-chip.tree-section-design {
  background: #fde8c7;
  border-left-color: #d69332;
}

.professional-breakdown-chip.tree-section-movie {
  background: #edf7d9;
  border-left-color: #8dbd3d;
}

.workspace {
  display: grid;
  grid-template-columns: minmax(380px, 1.25fr) minmax(460px, 1fr) minmax(280px, 0.75fr);
  gap: 14px;
  align-items: start;
}

.workspace.catalog-tree-mode {
  grid-template-areas:
    "catalog catalog"
    "plan status";
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.7fr);
  align-items: start;
}

.workspace.catalog-tree-mode .catalog-panel,
.workspace.catalog-tree-mode .plan-panel,
.workspace.catalog-tree-mode .status-panel {
  width: auto;
  max-width: none;
  min-width: 0;
}

.workspace.catalog-tree-mode .catalog-panel {
  grid-area: catalog;
  position: static;
  display: flex;
  flex-direction: column;
  max-height: none;
  overflow: visible;
}

.workspace.catalog-tree-mode .plan-panel {
  grid-area: plan;
}

.workspace.catalog-tree-mode .status-panel {
  grid-area: status;
  position: static;
  max-height: none;
}

.catalog-panel,
.plan-panel,
.status-panel {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(244, 250, 250, 0.96));
  box-shadow: var(--shadow), 0 0 0 1px rgba(66, 215, 210, 0.05) inset;
}

.catalog-panel {
  position: sticky;
  top: 12px;
  max-height: calc(100vh - 24px);
  overflow: auto;
  padding: 14px;
}

.status-panel {
  padding: 14px;
}

.panel-head,
.plan-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.catalog-panel .panel-head {
  justify-content: flex-start;
  flex-wrap: wrap;
}

.panel-head select {
  width: 132px;
}

.catalog-tools {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  flex-wrap: wrap;
  gap: 8px;
}

.filter-toggle {
  background: #f7faf8;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.filter-toggle[aria-expanded="true"] {
  border-color: rgba(20, 108, 104, 0.3);
  background: #e1f0ed;
  color: var(--brand-dark);
}

.tree-option {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  min-height: 34px;
  padding: 0 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f7faf8;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.tree-option[hidden] {
  display: none !important;
}

.tree-option input {
  min-height: auto;
  padding: 0;
}

.catalog-list {
  display: block;
  column-count: var(--catalog-column-count, 1);
  column-gap: 12px;
  column-fill: balance;
}

.catalog-list[hidden] {
  display: none;
}

.catalog-group {
  display: inline-block;
  width: 100%;
  margin: 0 0 12px;
  padding: 0 0 10px;
  break-inside: avoid-column;
}

.catalog-group-title {
  display: flex;
  align-items: center;
  min-height: 30px;
  margin: 0 0 8px;
  padding: 0 10px;
  border-left: 6px solid var(--brand);
  border-radius: 7px;
  background: rgba(15, 127, 122, 0.08);
  color: var(--brand-dark);
  font-size: 13px;
  font-weight: 800;
}

.catalog-subgroup {
  break-inside: avoid-column;
  margin-bottom: 8px;
}

.catalog-subgroup-title {
  display: flex;
  align-items: center;
  min-height: 28px;
  margin: 0 0 6px;
  padding: 0 10px;
  border-left: 6px solid transparent;
  border-radius: 7px;
  color: var(--ink);
  font-size: 12px;
  font-weight: 800;
}

.catalog-subgroup-title.tree-section-common {
  background: #eef0f1;
  border-left-color: #7c878b;
}

.catalog-subgroup-title.tree-section-basic-required {
  background: #e9f3fb;
  border-left-color: #4a91bd;
}

.catalog-subgroup-title.tree-section-basic-elective {
  background: #f2f6df;
  border-left-color: #9cae42;
}

.catalog-subgroup-title.tree-section-system {
  background: #e3f4ef;
  border-left-color: #26947b;
}

.catalog-subgroup-title.tree-section-movie {
  background: #edf7d9;
  border-left-color: #8dbd3d;
}

.catalog-subgroup-title.tree-section-sound {
  background: #fff8bd;
  border-left-color: #e1b72c;
}

.catalog-subgroup-title.tree-section-design {
  background: #fde8c7;
  border-left-color: #d69332;
}

.catalog-subgroup-title.tree-section-specialized {
  background: #ece8f7;
  border-left-color: #7364b8;
}

.catalog-subgroup-title.tree-section-teacher {
  background: #f0e8ff;
  border-left-color: #8a61c6;
}

.catalog-subgroup-title.tree-section-other {
  background: #edf0fa;
  border-left-color: #7281cf;
}

.catalog-subgroup-body {
  display: grid;
  gap: 8px;
}

.catalog-filters {
  flex: 1 0 100%;
  margin: 12px 0;
}

.catalog-filters[hidden] {
  display: none !important;
}

.catalog-filters fieldset {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 5px;
  margin: 0;
  padding: 7px 8px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfb;
}

.catalog-filters legend {
  padding: 0 4px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.catalog-filters label {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 3px;
  min-width: 40px;
  min-height: 26px;
  padding: 2px 6px;
  border-radius: 999px;
  background: #e7ecea;
  color: var(--ink);
  font-size: 11px;
  font-weight: 800;
}

.catalog-filters input {
  min-height: auto;
  padding: 0;
}

.course-card {
  --course-card-border: var(--line);
  --course-card-bg: var(--surface-strong);
  --course-card-planned-border: var(--brand);
  --course-card-planned-bg: #e7fbf7;
  display: grid;
  gap: 8px;
  padding: 10px;
  border: 1px solid var(--course-card-border);
  border-left: 6px solid var(--course-card-border);
  border-radius: 8px;
  background: var(--course-card-bg);
  break-inside: avoid-column;
  width: 100%;
  margin: 0 0 8px;
  transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease, background-color 160ms ease;
}

.course-card.tree-section-common {
  --course-card-border: #7c878b;
  --course-card-bg: #f4f6f6;
  --course-card-planned-border: #5f6a6e;
  --course-card-planned-bg: #dfe5e6;
}

.course-card.tree-section-basic-required {
  --course-card-border: #4a91bd;
  --course-card-bg: #edf6fc;
  --course-card-planned-border: #2f79a9;
  --course-card-planned-bg: #d3e9f7;
}

.course-card.tree-section-basic-elective {
  --course-card-border: #9cae42;
  --course-card-bg: #f5f8e7;
  --course-card-planned-border: #7f9227;
  --course-card-planned-bg: #e8efc4;
}

.course-card.tree-section-system {
  --course-card-border: #26947b;
  --course-card-bg: #e8f6f2;
  --course-card-planned-border: #147a63;
  --course-card-planned-bg: #c9eadd;
}

.course-card.tree-section-movie {
  --course-card-border: #8dbd3d;
  --course-card-bg: #f0f8df;
  --course-card-planned-border: #6f9e22;
  --course-card-planned-bg: #dcedb7;
}

.course-card.tree-section-sound {
  --course-card-border: #e1b72c;
  --course-card-bg: #fff8d6;
  --course-card-planned-border: #c29212;
  --course-card-planned-bg: #f7e294;
}

.course-card.tree-section-design {
  --course-card-border: #d69332;
  --course-card-bg: #fff1dd;
  --course-card-planned-border: #b87216;
  --course-card-planned-bg: #f6d1a0;
}

.course-card.tree-section-specialized {
  --course-card-border: #7364b8;
  --course-card-bg: #f0ecfb;
  --course-card-planned-border: #5c4ba1;
  --course-card-planned-bg: #ddd3f3;
}

.course-card.tree-section-common-soft {
  --course-card-border: #a9b2b5;
  --course-card-bg: #f4f7f6;
  --course-card-planned-border: #7c878b;
  --course-card-planned-bg: #e1e7e7;
}

.course-card.tree-section-system-soft {
  --course-card-border: #77b7a6;
  --course-card-bg: #edf8f4;
  --course-card-planned-border: #26947b;
  --course-card-planned-bg: #cfeee3;
}

.course-card.tree-section-movie-soft {
  --course-card-border: #b9d97f;
  --course-card-bg: #f4f9e7;
  --course-card-planned-border: #8dbd3d;
  --course-card-planned-bg: #e2f0bf;
}

.course-card.tree-section-sound-soft {
  --course-card-border: #edd46c;
  --course-card-bg: #fffbe9;
  --course-card-planned-border: #e1b72c;
  --course-card-planned-bg: #f9e9a8;
}

.course-card.tree-section-design-soft {
  --course-card-border: #e4b77c;
  --course-card-bg: #fff6e8;
  --course-card-planned-border: #d69332;
  --course-card-planned-bg: #f8d8ae;
}

.course-card.tree-section-other {
  --course-card-border: #7281cf;
  --course-card-bg: #f0f2fb;
  --course-card-planned-border: #5868ba;
  --course-card-planned-bg: #dce2f6;
}

.course-card.tree-section-teacher {
  --course-card-border: #d64283;
  --course-card-bg: #fff0f6;
  --course-card-planned-border: #b92b69;
  --course-card-planned-bg: #ffd9e8;
}

.course-card:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 22px rgba(23, 33, 37, 0.12);
}

.course-card.is-planned {
  border-color: var(--course-card-planned-border);
  border-left-color: var(--course-card-planned-border);
  background: var(--course-card-planned-bg);
  box-shadow: 0 0 0 1px rgba(66, 215, 210, 0.14) inset, 0 0 20px rgba(66, 215, 210, 0.12);
  animation: arcadeCollect 320ms ease-out;
}

.course-card.is-prereq-missing {
  border-color: #8a61c6;
  border-left-color: #8a61c6;
  background: #ede0ff;
  box-shadow: 0 0 0 1px rgba(138, 97, 198, 0.18) inset, 0 0 20px rgba(138, 97, 198, 0.1);
}

.course-card.is-missing-required {
  border-color: #c74f4a;
  border-left-color: #c74f4a;
  background: #ffe6e4;
  box-shadow: 0 0 0 1px rgba(199, 79, 74, 0.18) inset, 0 0 20px rgba(199, 79, 74, 0.1);
}

.course-card.fx-activate {
  animation: nodeActivate 720ms cubic-bezier(0.15, 0.9, 0.2, 1.1) both;
  animation-delay: var(--fx-delay, 0ms);
}

.course-card.fx-filter-reveal {
  animation: filterCourseReveal 420ms cubic-bezier(0.16, 0.82, 0.24, 1) both;
  animation-delay: var(--filter-reveal-delay, 0ms);
}

.course-card.fx-filter-hide,
.course-card.fx-clear-release {
  pointer-events: none;
  animation: filterCourseHide 340ms cubic-bezier(0.55, 0, 0.7, 0.35) both;
  animation-delay: var(--fx-exit-delay, 0ms);
}

.course-main {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 8px;
}

.course-info {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 8px;
  min-width: 0;
}

.course-title {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 6px;
  min-width: 0;
  max-width: 100%;
  font-size: 14px;
  font-weight: 800;
}

.course-title span {
  min-width: 0;
  overflow-wrap: anywhere;
}

.course-title small {
  flex: 0 0 auto;
  color: var(--brand);
  font-size: 12px;
}

.tags {
  display: flex;
  flex: 1 1 190px;
  flex-wrap: nowrap;
  gap: 5px;
  min-width: 0;
  overflow: hidden;
}

.tag {
  flex: 0 0 auto;
  padding: 2px 7px;
  border-radius: 999px;
  background: #e4e9e8;
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
}

.tag.teacher,
.tag.qualification {
  background: #e4e9e8;
  color: var(--muted);
}

.course-actions {
  display: flex;
  flex: 0 0 auto;
  gap: 6px;
  align-items: center;
}

.course-actions button {
  padding: 0 8px;
  min-height: 32px;
  font-size: 12px;
  line-height: 1;
  white-space: nowrap;
}

.course-actions .plan-button[aria-expanded="true"] {
  border-color: var(--brand);
  background: linear-gradient(180deg, #d9f5f1, #c8ece7);
  color: var(--brand-dark);
}

.course-card.is-planned .plan-button {
  min-width: 58px;
  border-color: rgba(20, 108, 104, 0.35);
  background: linear-gradient(180deg, #d6f2ec, #c8e8e1);
  color: var(--brand-dark);
  font-size: 11px;
  font-weight: 800;
}

.course-menu {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(84px, 1fr));
  gap: 5px;
  padding-top: 2px;
}

.planned-option-button {
  min-height: 30px;
  padding: 0 8px;
  border-color: rgba(20, 108, 104, 0.2);
  background: #f8fbfa;
  color: var(--ink);
  font-size: 11px;
  line-height: 1.1;
  white-space: nowrap;
}

.planned-option-button.is-selected {
  border-color: rgba(20, 108, 104, 0.55);
  background: linear-gradient(180deg, #d9f5f1, #c8ece7);
  color: var(--brand-dark);
  box-shadow: 0 0 0 1px rgba(20, 108, 104, 0.12) inset;
}

.plan-panel {
  padding: 14px;
}


.view-mode-tabs {
  display: inline-grid;
  grid-template-columns: repeat(3, minmax(54px, 1fr));
  gap: 3px;
  min-height: 34px;
  padding: 3px;
  border: 1px solid rgba(20, 108, 104, 0.18);
  border-radius: 999px;
  background: linear-gradient(180deg, #eef8f6, #ddebe8);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.72) inset;
}

.view-mode-tab {
  min-height: 26px;
  padding: 0 9px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.view-mode-tab.is-active {
  background: linear-gradient(180deg, #ffffff, #cfece8);
  color: var(--brand-dark);
  box-shadow: 0 5px 13px rgba(20, 108, 104, 0.16), 0 0 0 1px rgba(20, 108, 104, 0.08) inset;
}

.view-mode-tab:focus-visible {
  outline: 2px solid rgba(20, 108, 104, 0.3);
  outline-offset: 2px;
}

.plan-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  align-items: start;
  margin-top: 14px;
}

.plan-grid[hidden] {
  display: none;
}

.tree-view {
  --tree-section-left-offset: 15px;
  --tree-section-right-offset: 8px;
  position: relative;
  display: grid;
  flex: 1 1 auto;
  min-width: 0;
  min-height: 0;
  width: 100%;
  gap: 10px;
  max-width: 100%;
  margin-top: 14px;
  overflow: visible;
  padding: 8px 8px 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: linear-gradient(180deg, rgba(247, 252, 251, 0.96), rgba(242, 248, 247, 0.96));
  box-shadow: 0 18px 40px rgba(23, 33, 37, 0.08), 0 0 0 1px rgba(66, 215, 210, 0.05) inset;
}

.catalog-panel .tree-view {
  min-width: 1400px;
}

.catalog-tree {
  max-height: none;
}

.tree-view[hidden] {
  display: none;
}

.tree-view.layer-tree {
  display: block;
  min-width: 1320px;
  padding: 22px;
  overflow: visible;
  background:
    radial-gradient(circle at 70% 2%, rgba(255, 255, 255, 0.86), transparent 18%),
    radial-gradient(circle at 18% 94%, rgba(35, 75, 88, 0.2), transparent 28%),
    linear-gradient(160deg, #dcefed 0%, #f8f1dc 48%, #dce8ee 100%);
  box-shadow: none;
  perspective: 1400px;
  perspective-origin: 50% 18%;
}

.tree-layer-stage {
  position: relative;
  min-width: 1260px;
  min-height: var(--layer-stage-height, calc(520px + (var(--layer-count, 6) * 38px)));
  padding: 40px 92px 120px 42px;
  border-radius: 24px;
  background:
    linear-gradient(150deg, rgba(9, 63, 68, 0.12) 0 1px, transparent 1px 34px),
    linear-gradient(30deg, rgba(9, 63, 68, 0.11) 0 1px, transparent 1px 34px),
    radial-gradient(ellipse at center, rgba(255, 255, 255, 0.52), rgba(255, 255, 255, 0.12) 58%, rgba(11, 53, 59, 0.1));
  background-size: 64px 64px, 64px 64px, auto;
  isolation: isolate;
  transform-style: preserve-3d;
}

.tree-layer {
  position: relative;
  z-index: calc(20 + var(--layer-depth, 0));
  box-sizing: border-box;
  width: min(100%, 1080px);
  min-height: 188px;
  margin-top: var(--layer-overlap-offset, -132px);
  margin-left: 0;
  padding: 14px 34px 34px 30px;
  border: 1px solid rgba(23, 33, 37, 0.16);
  border-left: 8px solid var(--brand);
  border-radius: 16px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.82), rgba(255, 255, 255, 0.6)),
    var(--tree-layer-bg, #eef8f6);
  transform:
    translateY(calc(var(--layer-index, 0) * 4px))
    skewX(10deg);
  transform-origin: 50% 0;
  transition: opacity 180ms ease, filter 180ms ease, transform 180ms ease, border-color 180ms ease;
}

.tree-layer:nth-of-type(1) {
  --layer-reveal-delay: 0ms;
}

.tree-layer:nth-of-type(2) {
  --layer-reveal-delay: 150ms;
}

.tree-layer:nth-of-type(3) {
  --layer-reveal-delay: 300ms;
}

.tree-layer:nth-of-type(4) {
  --layer-reveal-delay: 450ms;
}

.tree-layer:nth-of-type(5) {
  --layer-reveal-delay: 600ms;
}

.tree-layer:nth-of-type(6) {
  --layer-reveal-delay: 750ms;
}

.tree-layer:nth-of-type(7) {
  --layer-reveal-delay: 900ms;
}

.tree-layer:nth-of-type(8) {
  --layer-reveal-delay: 1050ms;
}

.tree-layer:nth-of-type(9) {
  --layer-reveal-delay: 1200ms;
}

.tree-layer:nth-of-type(10) {
  --layer-reveal-delay: 1350ms;
}

.tree-layer:first-of-type {
  margin-top: 0;
}

.tree-layer::before {
  content: none;
}

.tree-layer::after {
  content: none;
}

.tree-layer.is-focused-layer {
  z-index: 90;
  opacity: 1;
  border-color: rgba(20, 108, 104, 0.44);
  filter: saturate(1.08) contrast(1.03);
}

.tree-layer.has-open-node {
  z-index: 110;
}

.tree-layer.is-occluding-focused {
  opacity: 0.22;
  filter: grayscale(0.35) blur(0.2px);
}

.tree-layer-stage.has-focused-layer .tree-layer:not(.is-focused-layer):not(.is-occluding-focused) {
  opacity: 0.72;
}

.tree-view.layer-tree .tree-edges {
  z-index: 80;
}

.tree-view.layer-tree .tree-edge {
  stroke: rgba(13, 94, 91, 0.42);
  stroke-width: 1.8;
  filter: none;
}

.tree-layer.tree-section-common {
  --tree-layer-bg: #eef0f1;
}

.tree-layer.tree-section-basic-required {
  --tree-layer-bg: #e9f3fb;
}

.tree-layer.tree-section-basic-elective {
  --tree-layer-bg: #f2f6df;
}

.tree-layer.tree-section-system {
  --tree-layer-bg: #e3f4ef;
}

.tree-layer.tree-section-movie {
  --tree-layer-bg: #edf7d9;
}

.tree-layer.tree-section-sound {
  --tree-layer-bg: #fff8bd;
}

.tree-layer.tree-section-design {
  --tree-layer-bg: #fde8c7;
}

.tree-layer.tree-section-specialized {
  --tree-layer-bg: #ece8f7;
}

.tree-layer.tree-section-other {
  --tree-layer-bg: #f0edf0;
}

.tree-layer.tree-section-teacher {
  --tree-layer-bg: #fde0ed;
}

.tree-layer-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  min-height: 32px;
  margin-bottom: 10px;
  transform: skewX(-10deg);
  transform-origin: left center;
}

.tree-layer-head p {
  display: none;
}

.tree-layer-head h3 {
  margin: 0;
  color: var(--ink);
  font-size: 17px;
  line-height: 1.2;
}

.tree-layer-head > span {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 10px;
  border: 1px solid rgba(23, 33, 37, 0.12);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.72);
  color: var(--muted);
  font-size: 12px;
  font-weight: 900;
  white-space: nowrap;
}

.tree-layer-grid {
  display: grid;
  grid-template-columns: repeat(var(--layer-term-count, 8), minmax(108px, 1fr));
  gap: 9px;
  align-items: stretch;
  margin-left: 0;
  padding-left: 0;
  overflow: visible;
  transform: skewX(-10deg);
  transform-origin: left top;
}

.tree-layer-column {
  display: grid;
  position: relative;
  align-content: start;
  gap: 7px;
  min-height: 76px;
  padding: 7px;
  border: 1px solid rgba(23, 33, 37, 0.08);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.36);
  overflow: visible;
  transform: skewX(10deg);
  transform-origin: center top;
}

.tree-layer-column.has-open-node {
  z-index: 180;
}

.tree-layer-term {
  padding: 5px 6px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.68);
  color: var(--brand-dark);
  font-size: 10px;
  font-weight: 900;
  text-align: center;
  transform: skewX(-10deg);
  transform-origin: center;
}

.tree-layer-lane {
  margin-top: 1px;
  color: rgba(23, 33, 37, 0.56);
  font-size: 9px;
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: 0.02em;
  transform: skewX(-10deg);
  transform-origin: left center;
}

.tree-layer-node {
  transform: skewX(10deg);
  transform-origin: center top;
}

.tree-layer-node .tree-node-button {
  align-items: center;
  grid-template-columns: minmax(0, 1fr);
  min-height: 28px;
  padding: 4px 7px;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.44);
  transform: skewX(-10deg);
  transform-origin: center;
}

.tree-layer-node.has-code .tree-node-button,
.tree-layer-node.has-meta .tree-node-button {
  grid-template-columns: auto minmax(0, 1fr);
}

.tree-layer-node:not(.has-meta) .tree-node-button {
  padding-top: 4px;
  padding-bottom: 4px;
}

.tree-layer-node:not(.has-meta) .tree-node-code,
.tree-layer-node:not(.has-meta) .tree-node-meta {
  display: none;
}

.tree-layer-node:not(.has-meta) .tree-node-name {
  align-self: center;
  grid-column: 1 / -1;
  line-height: 1.08;
}

.tree-layer-node.has-meta .tree-node-button {
  min-height: 42px;
}

.tree-layer-node.is-open {
  z-index: 220;
}

.tree-layer-node.is-open .tree-node-button {
  min-height: 36px;
  padding: 7px 9px;
  border-color: rgba(20, 108, 104, 0.5);
  background: rgba(255, 255, 255, 0.94);
  box-shadow: inset 0 0 0 1px rgba(20, 108, 104, 0.2);
  transform: skewX(-10deg) scale(1.02);
}

.tree-layer-node.is-open .tree-node-name {
  color: var(--ink);
  font-size: max(9.6px, var(--tree-name-fit-size, var(--tree-name-render-size)));
  line-height: 1.18;
  letter-spacing: 0;
}

.tree-layer-node.is-open .tree-node-menu {
  z-index: 320;
  min-width: 300px;
  transform: skewX(-10deg);
  transform-origin: top left;
}

.tree-layer-node .tree-node-button:hover {
  transform: skewX(-10deg) translateY(-1px);
}

.tree-view.layer-tree .tree-layer-node.required-basic .tree-node-button {
  box-shadow: inset 0 0 0 1px rgba(74, 145, 189, 0.18);
}

.tree-view.layer-tree .tree-layer-node.required-common .tree-node-button {
  box-shadow: inset 0 0 0 1px rgba(124, 135, 139, 0.18);
}

.tree-view.layer-tree .tree-layer-node.required-system .tree-node-button {
  box-shadow: inset 0 0 0 1px rgba(38, 148, 123, 0.18);
}

.tree-view.layer-tree .tree-layer-node.required-movie .tree-node-button {
  box-shadow: inset 0 0 0 1px rgba(141, 189, 61, 0.2);
}

.tree-view.layer-tree .tree-layer-node.required-sound .tree-node-button {
  box-shadow: inset 0 0 0 1px rgba(225, 183, 44, 0.2);
}

.tree-view.layer-tree .tree-layer-node.required-design .tree-node-button,
.tree-view.layer-tree .tree-layer-node.recommended-design .tree-node-button {
  box-shadow: inset 0 0 0 1px rgba(214, 147, 50, 0.2);
}

.tree-view.layer-tree .tree-layer-node.is-prereq-missing .tree-node-button {
  box-shadow: inset 0 0 0 1px rgba(138, 97, 198, 0.22);
}

.tree-view.layer-tree .tree-layer-node.is-missing-required .tree-node-button {
  box-shadow: inset 0 0 0 1px rgba(199, 79, 74, 0.22);
}

.tree-view.layer-tree .tree-layer-node .tree-node-button[aria-expanded="true"] {
  box-shadow: inset 0 0 0 2px rgba(20, 108, 104, 0.18);
}

.tree-header,
.tree-row {
  display: grid;
  grid-template-columns: var(--tree-grid-template, 136px repeat(8, minmax(152px, 1fr)));
  gap: 12px;
  min-width: 0;
  width: 100%;
}

.tree-header {
  position: sticky;
  top: 0;
  z-index: 4;
  align-items: end;
  padding-left: var(--tree-section-left-offset);
  padding-right: var(--tree-section-right-offset);
  padding-bottom: 2px;
  background: #f8faf8;
  box-sizing: border-box;
}

.tree-term {
  padding: 6px;
  border-radius: 6px;
  background: linear-gradient(180deg, #d9f3f1, #cfece8);
  color: var(--brand-dark);
  font-size: 12px;
  font-weight: 700;
  text-align: center;
}

.tree-section {
  position: relative;
  z-index: auto;
  display: grid;
  gap: 12px;
  min-width: 0;
  width: 100%;
  padding: 10px 12px 12px;
  border-radius: 8px;
  border-left: 7px solid var(--brand);
  background: linear-gradient(180deg, rgba(239, 248, 246, 0.92), rgba(231, 242, 241, 0.92));
}

.tree-section-common {
  background: #eef0f1;
  border-left-color: #7c878b;
}

.tree-section-basic-required {
  background: #e9f3fb;
  border-left-color: #4a91bd;
  gap: 8px;
}

.tree-section-basic-elective {
  background: #f2f6df;
  border-left-color: #9cae42;
}

.tree-section-system {
  background: #e3f4ef;
  border-left-color: #26947b;
}

.tree-section-movie {
  background: #edf7d9;
  border-left-color: #8dbd3d;
}

.tree-section-sound {
  background: #fff8bd;
  border-left-color: #e1b72c;
}

.tree-section-design {
  background: #fde8c7;
  border-left-color: #d69332;
}

.tree-section-specialized {
  background: #ece8f7;
  border-left-color: #7364b8;
}

.tree-section-intensive {
  background: #fff0d8;
  border-left-color: #c87922;
}

.tree-section-other {
  background: #f0edf0;
  border-left-color: #8a7f8e;
}

.tree-section-teacher {
  background: #fde0ed;
  border-left-color: #d64283;
}

.tree-section-title {
  color: var(--ink);
  font-size: 14px;
  font-weight: 700;
  cursor: help;
}

.tree-lane {
  position: relative;
  z-index: 3;
  display: grid;
  align-content: center;
  min-height: 44px;
  padding: 6px;
  border: 1px solid rgba(23, 33, 37, 0.16);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.76);
  font-size: 12px;
  font-weight: 700;
  cursor: help;
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.36) inset;
}

.tree-cell {
  display: grid;
  align-content: start;
  gap: 12px;
  min-height: 56px;
}

.tree-slot {
  display: grid;
  align-content: start;
  min-height: 34px;
}

.tree-section-basic-required .tree-cell {
  gap: 6px;
  min-height: 40px;
}

.tree-section-basic-required .tree-slot {
  min-height: 23px;
}

.tree-section-common .tree-cell,
.tree-section-system .tree-cell,
.tree-section-movie .tree-cell,
.tree-section-sound .tree-cell,
.tree-section-design .tree-cell,
.tree-section-specialized .tree-cell {
  gap: 6px;
  min-height: 40px;
}

.tree-section-common .tree-slot,
.tree-section-system .tree-slot,
.tree-section-movie .tree-slot,
.tree-section-sound .tree-slot,
.tree-section-design .tree-slot,
.tree-section-specialized .tree-slot {
  min-height: 23px;
}

.tree-row.is-centered-lane .tree-cell {
  display: flex;
  align-items: center;
  min-height: 44px;
}

.tree-section-basic-required .tree-row.is-centered-lane .tree-cell {
  min-height: 36px;
}

.tree-row.is-centered-lane .tree-slot {
  width: 100%;
  min-height: 0;
}

.tree-node {
  --tree-node-border: rgba(23, 33, 37, 0.3);
  --tree-node-bg: #fff;
  --tree-node-planned-border: var(--brand);
  --tree-node-planned-bg: #d9f7f2;
  position: relative;
  z-index: 3;
}

.tree-node.is-open {
  z-index: 20;
}

.tree-node-button {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 3px 6px;
  width: 100%;
  min-height: 0;
  padding: 5px 7px;
  border: 1.5px solid var(--tree-node-border);
  border-color: var(--tree-node-border);
  border-radius: 6px;
  background: var(--tree-node-bg);
  text-align: left;
  align-items: start;
  cursor: default;
  transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease, background-color 160ms ease;
}

.tree-node.tree-section-common {
  --tree-node-border: #7c878b;
  --tree-node-bg: #f4f6f6;
  --tree-node-planned-border: #5f6a6e;
  --tree-node-planned-bg: #dfe5e6;
}

.tree-node.tree-section-basic-required {
  --tree-node-border: #4a91bd;
  --tree-node-bg: #edf6fc;
  --tree-node-planned-border: #2f79a9;
  --tree-node-planned-bg: #d3e9f7;
}

.tree-node.tree-section-basic-elective {
  --tree-node-border: #9cae42;
  --tree-node-bg: #f5f8e7;
  --tree-node-planned-border: #7f9227;
  --tree-node-planned-bg: #e8efc4;
}

.tree-node.tree-section-system {
  --tree-node-border: #26947b;
  --tree-node-bg: #e8f6f2;
  --tree-node-planned-border: #147a63;
  --tree-node-planned-bg: #c9eadd;
}

.tree-node.tree-section-movie {
  --tree-node-border: #8dbd3d;
  --tree-node-bg: #f0f8df;
  --tree-node-planned-border: #6f9e22;
  --tree-node-planned-bg: #dcedb7;
}

.tree-node.tree-section-sound {
  --tree-node-border: #e1b72c;
  --tree-node-bg: #fff8d6;
  --tree-node-planned-border: #c29212;
  --tree-node-planned-bg: #f7e294;
}

.tree-node.tree-section-design {
  --tree-node-border: #d69332;
  --tree-node-bg: #fff1dd;
  --tree-node-planned-border: #b87216;
  --tree-node-planned-bg: #f6d1a0;
}

.tree-node.tree-section-specialized {
  --tree-node-border: #7364b8;
  --tree-node-bg: #f0ecfb;
  --tree-node-planned-border: #5c4ba1;
  --tree-node-planned-bg: #ddd3f3;
}

.tree-node.tree-section-common-soft {
  --tree-node-border: #a9b2b5;
  --tree-node-bg: #f4f7f6;
  --tree-node-planned-border: #7c878b;
  --tree-node-planned-bg: #e1e7e7;
}

.tree-node.tree-section-system-soft {
  --tree-node-border: #77b7a6;
  --tree-node-bg: #edf8f4;
  --tree-node-planned-border: #26947b;
  --tree-node-planned-bg: #cfeee3;
}

.tree-node.tree-section-movie-soft {
  --tree-node-border: #b9d97f;
  --tree-node-bg: #f4f9e7;
  --tree-node-planned-border: #8dbd3d;
  --tree-node-planned-bg: #e2f0bf;
}

.tree-node.tree-section-sound-soft {
  --tree-node-border: #edd46c;
  --tree-node-bg: #fffbe9;
  --tree-node-planned-border: #e1b72c;
  --tree-node-planned-bg: #f9e9a8;
}

.tree-node.tree-section-design-soft {
  --tree-node-border: #e4b77c;
  --tree-node-bg: #fff6e8;
  --tree-node-planned-border: #d69332;
  --tree-node-planned-bg: #f8d8ae;
}

.tree-node.tree-section-other {
  --tree-node-border: #7281cf;
  --tree-node-bg: #f0f2fb;
  --tree-node-planned-border: #5868ba;
  --tree-node-planned-bg: #dce2f6;
}

.tree-node.tree-section-teacher {
  --tree-node-border: #d64283;
  --tree-node-bg: #fff0f6;
  --tree-node-planned-border: #b92b69;
  --tree-node-planned-bg: #ffd9e8;
}

.tree-node.has-tooltip .tree-node-button {
  cursor: help;
}

.tree-node-button:hover {
  transform: translateY(-1px);
  box-shadow: 0 9px 20px rgba(23, 33, 37, 0.14);
}

.tree-node.required-basic .tree-node-button {
  border-color: #4a91bd;
  box-shadow: 0 0 0 1px rgba(74, 145, 189, 0.18);
}

.tree-node.required-common .tree-node-button {
  border-color: #7c878b;
  box-shadow: 0 0 0 1px rgba(124, 135, 139, 0.18);
}

.tree-node.required-system .tree-node-button {
  border-color: #26947b;
  box-shadow: 0 0 0 1px rgba(38, 148, 123, 0.18);
}

.tree-node.required-movie .tree-node-button {
  border-color: #8dbd3d;
  box-shadow: 0 0 0 1px rgba(141, 189, 61, 0.2);
}

.tree-node.recommended-design .tree-node-button {
  border-color: #d69332;
  box-shadow: 0 0 0 1px rgba(214, 147, 50, 0.16);
}

.tree-node.required-sound .tree-node-button {
  border-color: #e1b72c;
  box-shadow: 0 0 0 1px rgba(225, 183, 44, 0.2);
}

.tree-node.required-design .tree-node-button {
  border-color: #d69332;
  box-shadow: 0 0 0 1px rgba(214, 147, 50, 0.2);
}

.tree-node.is-planned .tree-node-button {
  border-color: var(--tree-node-planned-border);
  background: var(--tree-node-planned-bg);
  animation: arcadeCollect 320ms ease-out;
}

.tree-node-button[aria-expanded="true"] {
  box-shadow: 0 0 0 2px rgba(20, 108, 104, 0.16);
}

.tree-node.is-prereq-missing .tree-node-button {
  border-color: #8a61c6;
  background: #eadfff;
  box-shadow: 0 0 0 1px rgba(138, 97, 198, 0.22);
}

.tree-node.is-missing-required .tree-node-button {
  border-color: #c74f4a;
  background: #ffe1de;
  box-shadow: 0 0 0 1px rgba(199, 79, 74, 0.22);
}

.tree-node.fx-activate .tree-node-button {
  animation: nodeActivate 720ms cubic-bezier(0.15, 0.9, 0.2, 1.1) both;
  animation-delay: var(--fx-delay, 0ms);
}

.tree-node.fx-filter-reveal .tree-node-button {
  animation: filterCourseReveal 420ms cubic-bezier(0.16, 0.82, 0.24, 1) both;
  animation-delay: var(--filter-reveal-delay, 0ms);
}

.tree-node.fx-filter-hide .tree-node-button,
.tree-node.fx-clear-release .tree-node-button {
  pointer-events: none;
  animation: filterCourseHide 340ms cubic-bezier(0.55, 0, 0.7, 0.35) both;
  animation-delay: var(--fx-exit-delay, 0ms);
}

.tree-view.is-revealing .tree-node.is-tree-reveal .tree-node-button {
  animation: treeNodeReveal 700ms cubic-bezier(0.16, 0.88, 0.18, 1.05) both;
  animation-delay: var(--tree-reveal-delay, 0ms);
}

.tree-view.layer-tree.is-revealing .tree-node.is-tree-reveal .tree-node-button {
  animation: none;
}

.tree-view.layer-tree.is-revealing .tree-layer {
  animation: layerPanelReveal 860ms cubic-bezier(0.18, 0.88, 0.22, 1.04) both;
  animation-delay: var(--layer-reveal-delay, 0ms);
  will-change: transform, opacity, filter;
}

.tree-node-code {
  color: var(--muted);
  font-size: 9px;
  font-weight: 700;
  line-height: 1.15;
  white-space: nowrap;
}

.tree-node-name {
  --tree-name-render-size: var(--tree-name-size, 10.5px);
  min-width: 0;
  overflow: hidden;
  font-size: var(--tree-name-fit-size, var(--tree-name-render-size));
  font-weight: 700;
  line-height: 1.22;
  letter-spacing: -0.02em;
  white-space: nowrap;
  -webkit-text-size-adjust: 100%;
}

.tree-node-meta {
  grid-column: 1 / -1;
  color: var(--muted);
  font-size: 9px;
  font-weight: 600;
  line-height: 1.2;
  padding-top: 1px;
}

.tree-node:not(.has-meta) .tree-node-button {
  padding-bottom: 4px;
}

.tree-node.has-meta .tree-node-button {
  padding-top: 5px;
  padding-bottom: 5px;
}

.level-初級 .tree-node-code,
.level-初中級 .tree-node-code {
  color: #13684f;
}

.level-中級 .tree-node-code,
.level-中上級 .tree-node-code {
  color: #4d4698;
}

.level-上級 .tree-node-code {
  color: #a02d9a;
}

@supports (-webkit-touch-callout: none) {
  .course-selection-menu {
    min-width: 620px;
  }

  .course-menu-row {
    grid-template-columns: minmax(96px, 0.58fr) minmax(0, 2fr);
  }

  .course-menu-row button,
  .course-menu-unselected {
    padding: 0 6px;
    font-size: 10px;
    line-height: 1.05;
    overflow-wrap: normal;
    white-space: nowrap;
    word-break: keep-all;
  }

  .catalog-panel .tree-view {
    min-width: 1480px;
  }

  .tree-node-button {
    gap: 3px 6px;
    padding-inline: 7px;
  }

  .tree-node-name {
    --tree-name-render-size: max(7.2px, calc(var(--tree-name-size, 10.5px) - 0.25px));
    line-height: 1.16;
  }
}

.tree-node-menu {
  position: absolute;
  z-index: 6;
  top: calc(100% + 4px);
  left: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(92px, 1fr));
  gap: 5px;
  min-width: 260px;
  padding: 6px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: #fff;
  box-shadow: var(--shadow);
}

.tree-node-menu.open-up {
  top: auto;
  bottom: calc(100% + 4px);
}

.tree-node-menu button {
  min-height: 32px;
  font-size: 11px;
}

.tree-node.is-disabled {
  opacity: 0.55;
}

.tree-edges {
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
}

.tree-edge {
  fill: none;
  stroke: rgba(20, 108, 104, 0.54);
  stroke-width: 2.3;
  stroke-linecap: round;
  stroke-linejoin: round;
  filter: drop-shadow(0 0 3px rgba(66, 215, 210, 0.2));
}

.tree-edge-arrow {
  fill: rgba(20, 108, 104, 0.7);
}

.tree-view.is-revealing .tree-edge {
  animation: treeEdgeReveal 980ms ease-out both;
}

.year-column {
  display: grid;
  align-content: start;
  gap: 10px;
  min-width: 0;
}

.year-title {
  padding: 8px 10px;
  border-radius: 7px;
  background: var(--brand-dark);
  color: #fff;
  font-size: 14px;
  font-weight: 800;
  text-align: center;
}

.term-box {
  min-height: 0;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: linear-gradient(180deg, rgba(251, 253, 252, 0.98), rgba(245, 248, 247, 0.98));
  transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease;
}

.term-box:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 22px rgba(23, 33, 37, 0.08);
}

.term-box.fx-batch {
  animation: planCellActivate 460ms cubic-bezier(0.2, 0.88, 0.24, 1) both;
  animation-delay: var(--plan-cell-delay, 0ms);
}

.term-head {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 4px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.term-head strong {
  color: var(--ink);
}

.term-credit-breakdown {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 6px;
  margin-bottom: 8px;
}

.term-credit-breakdown span {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: baseline;
  gap: 4px;
  min-width: 0;
  padding: 4px 7px;
  border-radius: 6px;
  background: #e7ecea;
  color: var(--muted);
  font-weight: 800;
}

.term-credit-breakdown b {
  color: var(--ink);
  font-size: 13px;
}

.term-credit-breakdown small {
  overflow: hidden;
  font-size: 10px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.term-credit-breakdown span:last-child {
  background: #eef2f0;
  color: var(--muted);
}

.term-credit-breakdown span:last-child b {
  color: var(--muted);
}

.term-box.limit-exceeded {
  border-color: rgba(179, 58, 58, 0.5);
  background: #fffafa;
}

.term-box.limit-exceeded .limit-counted {
  background: #fdecec;
  color: var(--bad);
}

.term-box.limit-exceeded .limit-counted b {
  color: var(--bad);
}

.planned-list {
  display: grid;
  gap: 6px;
}

.planned-course {
  --planned-course-bg: var(--surface-strong);
  --planned-course-border: var(--brand);
  display: grid;
  gap: 3px;
  padding: 7px;
  border-left: 3px solid var(--planned-course-border);
  border-radius: 5px;
  background: var(--planned-course-bg);
  font-size: 12px;
}

.planned-course.tree-section-common {
  --planned-course-border: #7c878b;
  --planned-course-bg: #eef3f2;
}

.planned-course.tree-section-basic-required {
  --planned-course-border: #4a91bd;
  --planned-course-bg: #edf6fc;
}

.planned-course.tree-section-basic-elective {
  --planned-course-border: #9cae42;
  --planned-course-bg: #f4f8e9;
}

.planned-course.tree-section-system {
  --planned-course-border: #26947b;
  --planned-course-bg: #edf8f4;
}

.planned-course.tree-section-movie {
  --planned-course-border: #8dbd3d;
  --planned-course-bg: #f4f9e7;
}

.planned-course.tree-section-sound {
  --planned-course-border: #e1b72c;
  --planned-course-bg: #fffbe9;
}

.planned-course.tree-section-design {
  --planned-course-border: #d69332;
  --planned-course-bg: #fff6e8;
}

.planned-course.tree-section-specialized {
  --planned-course-border: #7364b8;
  --planned-course-bg: #f1eefb;
}

.planned-course.tree-section-common-soft {
  --planned-course-border: #a9b2b5;
  --planned-course-bg: #f4f7f6;
}

.planned-course.tree-section-system-soft {
  --planned-course-border: #77b7a6;
  --planned-course-bg: #edf8f4;
}

.planned-course.tree-section-movie-soft {
  --planned-course-border: #b9d97f;
  --planned-course-bg: #f4f9e7;
}

.planned-course.tree-section-sound-soft {
  --planned-course-border: #edd46c;
  --planned-course-bg: #fffbe9;
}

.planned-course.tree-section-design-soft {
  --planned-course-border: #e4b77c;
  --planned-course-bg: #fff6e8;
}

.planned-course.tree-section-other {
  --planned-course-border: #7281cf;
  --planned-course-bg: #eef1fb;
}

.planned-course.tree-section-teacher {
  --planned-course-border: #d64283;
  --planned-course-bg: #fff0f6;
}

.planned-course {
  cursor: pointer;
}

.planned-course:hover {
  filter: brightness(0.985);
}

.planned-course:focus-visible {
  outline: 2px solid rgba(20, 108, 104, 0.34);
  outline-offset: 2px;
}

.planned-course.is-open {
  box-shadow: inset 0 0 0 1px rgba(20, 108, 104, 0.18);
}

.planned-course-menu {
  display: grid;
  grid-template-columns: repeat(2, minmax(82px, 1fr));
  gap: 5px;
  margin-top: 2px;
}

.planned-course-menu button {
  min-height: 32px;
  font-size: 11px;
}

.planned-course.fx-activate {
  animation: planCourseActivate 420ms cubic-bezier(0.15, 0.9, 0.2, 1.04) both;
  animation-delay: var(--fx-delay, 0ms);
}

.planned-course.fx-clear-release {
  pointer-events: none;
  animation: planCourseRelease 380ms cubic-bezier(0.55, 0, 0.72, 0.38) both;
  animation-delay: var(--fx-exit-delay, 0ms);
}

.planned-course.cap-excluded {
  border-left-color: #8a9a9a;
  background:
    linear-gradient(180deg, rgba(243, 246, 245, 0.4), rgba(243, 246, 245, 0.4)),
    var(--planned-course-bg);
}

.planned-course.qualification-recognition {
  border-left-color: #3f5f99;
  background:
    linear-gradient(180deg, rgba(243, 246, 255, 0.28), rgba(243, 246, 255, 0.28)),
    var(--planned-course-bg);
}

.qualification-box {
  grid-column: 1 / -1;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfb;
}

.planned-course span {
  font-weight: 800;
}

.planned-course small {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px;
  color: var(--muted);
  line-height: 1.25;
}

.planned-course-credit {
  font-weight: 800;
}

.status-panel h2 {
  margin-bottom: 12px;
}

.requirements {
  display: grid;
  gap: 8px;
}

.requirement {
  padding: 10px;
  border-radius: 8px;
  background: var(--surface-strong);
  border: 1px solid var(--line);
}

.requirement strong {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  font-size: 13px;
}

.requirement .status {
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 12px;
}

.requirement p {
  margin: 5px 0 0;
  color: var(--muted);
  font-size: 12px;
}

.requirement.ok {
  border-color: rgba(31, 122, 77, 0.45);
  background: #eaf6ee;
}

.requirement.ok .status {
  background: var(--ok);
  color: #fff;
}

.requirement.missing {
  border-color: rgba(179, 58, 58, 0.42);
  background: #fdecec;
}

.requirement.missing .status {
  background: var(--bad);
  color: #fff;
}

.requirement.info {
  border-color: rgba(97, 112, 118, 0.28);
  background: #f3f6f5;
}

.requirement.info .status {
  background: #617076;
  color: #fff;
}

.manual-credits {
  margin: 14px 0;
}

.alerts {
  display: grid;
  gap: 8px;
}

.alert {
  padding: 10px;
  border-radius: 8px;
  font-size: 13px;
  transition: transform 160ms ease, box-shadow 160ms ease;
}

.alert:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 18px rgba(23, 33, 37, 0.08);
}

.alert.ok {
  background: #eaf6ee;
  color: var(--ok);
}

.alert.warn {
  background: #fff3e8;
  color: var(--warn);
}

.alert.info {
  background: #e8f1f7;
  color: #315c74;
}

.alert.bad {
  background: #fdecec;
  color: var(--bad);
}

@media (max-width: 1180px) {
  .topbar,
  .workspace {
    grid-template-columns: 1fr;
  }

  .topbar {
    display: grid;
  }

  .controls,
  .summary-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .workspace {
    display: grid;
  }

  .catalog-panel,
  .status-panel {
    position: static;
    max-height: none;
  }
}

@media (min-width: 2200px) {
  .workspace.catalog-tree-mode {
    grid-template-areas: "catalog plan status";
    grid-template-columns: minmax(1420px, 1.6fr) minmax(460px, 1fr) minmax(340px, 0.85fr);
  }
}

@media (max-width: 1180px) {
  .workspace.catalog-tree-mode {
    grid-template-areas:
      "catalog"
      "plan"
      "status";
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .app-shell {
    width: min(100vw - 12px, 1500px);
    padding-top: 10px;
  }

  .topbar,
  .bgm-roll-panel {
    padding-left: 10px;
    padding-right: 10px;
  }

  .controls,
  .summary-grid,
  .plan-grid {
    grid-template-columns: 1fr;
  }

  .controls {
    gap: 8px;
  }

  .settings-menu {
    position: static;
    margin-top: 6px;
    min-width: 0;
    width: 100%;
  }

  .course-menu-row {
    grid-template-columns: 1fr;
    align-items: stretch;
  }

  .course-selection-menu {
    min-width: 0;
  }

  .course-actions {
    grid-template-columns: auto minmax(0, 1fr) minmax(0, 1fr);
  }

  .bgm-roll-head {
    align-items: flex-start;
    flex-direction: column;
  }

  .bgm-roll-stats,
  .bgm-roll-legend {
    justify-content: flex-start;
  }

  .bgm-roll-grid {
    grid-template-columns: minmax(46px, 56px) repeat(16, minmax(18px, 1fr));
    gap: 2px;
    min-width: 0;
    overflow-x: auto;
    overflow-y: hidden;
    padding-bottom: 2px;
  }

  .bgm-roll-label,
  .bgm-roll-step,
  .bgm-roll-cell {
    min-height: 22px;
    font-size: 9px;
    border-radius: 4px;
  }

  .catalog-panel {
    overflow-x: auto;
    overflow-y: auto;
  }

  .catalog-panel .tree-view {
    min-width: 1285px;
  }

  .tree-header,
  .tree-row {
    grid-template-columns: var(--tree-grid-template, 120px repeat(8, minmax(136px, 1fr)));
    gap: 8px;
  }

  .tree-view {
    min-width: 1285px;
    overflow-x: auto;
    overflow-y: visible;
  }

  .tree-node-button {
    padding: 4px 7px;
  }

  .tree-node-name {
    --tree-name-render-size: max(7.1px, calc(var(--tree-name-size, 9.5px) - 0.2px));
  }

  .workspace.catalog-tree-mode {
    grid-template-areas:
      "catalog"
      "plan"
      "status";
    grid-template-columns: 1fr;
  }
}

@supports (-webkit-touch-callout: none) {
  @media (max-width: 900px) {
    .course-selection-menu {
      min-width: min(620px, calc(100vw - 24px));
    }

    .course-menu-row {
      grid-template-columns: minmax(82px, 0.52fr) minmax(0, 2fr);
    }

    .course-menu-row button,
    .course-menu-unselected {
      padding: 0 5px;
      font-size: 9.5px;
      white-space: nowrap;
    }

    .catalog-panel .tree-view,
    .tree-view {
      min-width: 1320px;
    }

    .tree-node-name {
      --tree-name-render-size: max(6.9px, calc(var(--tree-name-size, 9.5px) - 0.35px));
    }
  }
}

#fxLayer {
  position: fixed;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  overflow: hidden;
}

.fx-particle {
  position: absolute;
  width: var(--size);
  height: var(--size);
  margin-left: calc(var(--size) / -2);
  margin-top: calc(var(--size) / -2);
  border-radius: 999px;
  background: hsl(var(--hue) 96% 62% / 0.96);
  box-shadow: 0 0 14px hsl(var(--hue) 96% 62% / 0.55);
  transform: translate(0, 0) scale(1);
  animation: fxParticle 620ms cubic-bezier(0.18, 0.88, 0.28, 1) forwards;
}

.fx-particle.fx-star {
  clip-path: polygon(50% 0%, 63% 36%, 100% 50%, 63% 64%, 50% 100%, 37% 64%, 0% 50%, 37% 36%);
}

body.fx-shake {
  animation: screenShake 240ms linear 1;
}

body.is-animation-muted *,
body.is-animation-muted *::before,
body.is-animation-muted *::after {
  animation: none !important;
  transition-duration: 0.01ms !important;
}

body.is-animation-muted::before,
body.is-animation-muted::after {
  animation: none !important;
}

body.is-animation-muted .fx-particle {
  display: none !important;
}

@keyframes bgFloat {
  0% {
    transform: translate3d(0, 0, 0) scale(1);
  }

  100% {
    transform: translate3d(0, -10px, 0) scale(1.02);
  }
}

@keyframes scanlines {
  0% {
    background-position: 0 0, 0 0;
  }

  100% {
    background-position: 0 28px, 28px 0;
  }
}

@keyframes fxParticle {
  0% {
    opacity: 0.95;
    transform: translate(0, 0) scale(0.7);
  }

  100% {
    opacity: 0;
    transform: translate(var(--dx), var(--dy)) scale(0.1);
  }
}

@keyframes arcadeCollect {
  0% {
    transform: scale(0.96);
    box-shadow: 0 0 0 rgba(66, 215, 210, 0);
  }

  55% {
    transform: scale(1.02);
    box-shadow: 0 0 24px rgba(66, 215, 210, 0.22);
  }

  100% {
    transform: scale(1);
    box-shadow: inherit;
  }
}

@keyframes nodeActivate {
  0% {
    opacity: 0.35;
    transform: translateX(-12px) scale(0.88) rotate(-1deg);
    filter: saturate(1.4) brightness(1.12);
    box-shadow: 0 0 0 rgba(66, 215, 210, 0);
  }

  35% {
    opacity: 1;
    transform: translateX(4px) scale(1.08) rotate(0.6deg);
    filter: saturate(1.7) brightness(1.2);
    box-shadow: 0 0 26px rgba(66, 215, 210, 0.36), 0 0 0 2px rgba(66, 215, 210, 0.25);
  }

  72% {
    transform: translateX(0) scale(0.98);
  }

  100% {
    opacity: 1;
    transform: translateX(0) scale(1) rotate(0);
    filter: none;
  }
}

@keyframes treeNodeReveal {
  0% {
    opacity: 0;
    transform: translateX(-18px) scale(0.86);
    filter: blur(2px) saturate(1.5);
  }

  48% {
    opacity: 1;
    transform: translateX(5px) scale(1.05);
    filter: blur(0) saturate(1.35);
    box-shadow: 0 0 24px rgba(66, 215, 210, 0.24);
  }

  100% {
    opacity: 1;
    transform: translateX(0) scale(1);
    filter: none;
  }
}

@keyframes treeEdgeReveal {
  0% {
    opacity: 0;
    stroke-dashoffset: 28;
  }

  35% {
    opacity: 0.25;
  }

  100% {
    opacity: 1;
    stroke-dashoffset: 0;
  }
}

@keyframes layerPanelReveal {
  0% {
    opacity: 0;
    transform:
      translateX(-88px)
      translateY(calc(var(--layer-index, 0) * 4px + 14px))
      skewX(4deg);
    filter: blur(1.6px) saturate(1.08);
  }

  42% {
    opacity: 1;
    transform:
      translateX(12px)
      translateY(calc(var(--layer-index, 0) * 4px - 3px))
      skewX(12.8deg);
    filter: blur(0) saturate(1.05);
  }

  68% {
    opacity: 1;
    transform:
      translateX(-5px)
      translateY(calc(var(--layer-index, 0) * 4px + 1px))
      skewX(8.8deg);
    filter: none;
  }

  100% {
    opacity: 1;
    transform:
      translateX(0)
      translateY(calc(var(--layer-index, 0) * 4px))
      skewX(10deg);
    filter: none;
  }
}

@keyframes meterSegmentShine {
  0% {
    transform: translateX(-120%);
  }

  100% {
    transform: translateX(120%);
  }
}

@keyframes meterSegmentRecede {
  0% {
    opacity: 0.85;
    transform: translateX(120%);
  }

  100% {
    opacity: 0;
    transform: translateX(-120%);
  }
}

@keyframes planCourseActivate {
  0% {
    opacity: 0.25;
    transform: translateX(-10px) scale(0.94);
    filter: saturate(1.2);
  }

  40% {
    opacity: 1;
    transform: translateX(4px) scale(1.03);
    box-shadow: 0 0 18px rgba(66, 215, 210, 0.18);
  }

  100% {
    opacity: 1;
    transform: translateX(0) scale(1);
    filter: none;
  }
}

@keyframes planCellActivate {
  0% {
    border-color: rgba(70, 139, 122, 0.16);
    box-shadow: 0 0 0 rgba(79, 193, 154, 0);
    transform: translateY(0) scale(0.992);
  }

  35% {
    border-color: rgba(79, 193, 154, 0.6);
    box-shadow: 0 0 0 3px rgba(79, 193, 154, 0.12), 0 12px 28px rgba(52, 120, 104, 0.12);
    transform: translateY(-1px) scale(1);
  }

  100% {
    border-color: var(--line);
    box-shadow: 0 0 0 rgba(79, 193, 154, 0);
    transform: translateY(0) scale(1);
  }
}

@keyframes filterCourseReveal {
  0% {
    opacity: 0;
    transform: translateY(7px) scale(0.97);
    filter: saturate(1.25) brightness(1.08);
  }

  46% {
    opacity: 1;
    transform: translateY(-1px) scale(1.015);
    box-shadow: 0 0 18px rgba(66, 215, 210, 0.18);
  }

  100% {
    opacity: 1;
    transform: translateY(0) scale(1);
    filter: none;
  }
}

@keyframes filterCourseHide {
  0% {
    opacity: 1;
    transform: translateY(0) scale(1);
    filter: none;
  }

  35% {
    opacity: 0.92;
    transform: translateY(-1px) scale(1.01);
    filter: saturate(1.2) brightness(1.08);
  }

  100% {
    opacity: 0;
    transform: translateY(8px) scale(0.95);
    filter: saturate(0.75) brightness(0.92);
  }
}

@keyframes planCourseRelease {
  0% {
    opacity: 1;
    transform: translateX(0) scale(1);
    filter: none;
  }

  42% {
    opacity: 0.9;
    transform: translateX(3px) scale(1.015);
    box-shadow: 0 0 18px rgba(226, 102, 86, 0.16);
    filter: saturate(1.18);
  }

  100% {
    opacity: 0;
    transform: translateX(12px) scale(0.96);
    filter: saturate(0.72) brightness(0.94);
  }
}

@keyframes screenShake {
  0% {
    transform: translate(0, 0);
  }

  20% {
    transform: translate(-1px, 1px);
  }

  40% {
    transform: translate(1px, -1px);
  }

  60% {
    transform: translate(-1px, -1px);
  }

  80% {
    transform: translate(1px, 1px);
  }

  100% {
    transform: translate(0, 0);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  body::before,
  body::after,
  .fx-particle {
    animation: none !important;
  }
}