:root {
  --wsc-ink: #1d1730;
  --wsc-muted: #746a89;
  --wsc-line: #e7dcfb;
  --wsc-soft: #f7f1ff;
  --wsc-purple: #7b54df;
  --wsc-purple-dark: #5730b8;
  --wsc-purple-light: #b78dff;
  --wsc-red: #d94a55;
  --wsc-amber: #d8891b;
  --wsc-white: #fff;
}

.wsc-app,
.wsc-admin {
  color: var(--wsc-ink);
  font-family: Inter, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
}

.wsc-student-app {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: 24px;
  margin: 0 auto;
  padding: 28px;
  background:
    linear-gradient(180deg, rgba(247, 241, 255, 0.92), rgba(255, 255, 255, 0.96)),
    radial-gradient(circle at 18% 16%, rgba(183, 141, 255, 0.2), transparent 32%);
}

.wsc-sidebar,
.wsc-card,
.wsc-panel,
.wsc-admin-hero,
.wsc-admin-stats > div,
.wsc-stat-grid > div,
.wsc-course-card,
.wsc-module-grid button {
  border: 1px solid var(--wsc-line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.92);
}

.wsc-sidebar {
  min-height: calc(100vh - 56px);
  padding: 22px;
  box-shadow: 0 18px 48px rgba(50, 27, 95, 0.08);
}

.wsc-brand {
  display: grid;
  grid-template-columns: 54px 1fr;
  column-gap: 14px;
  align-items: center;
  margin-bottom: 32px;
}

.wsc-brand span {
  width: 54px;
  height: 54px;
  display: grid;
  place-items: center;
  border-radius: 16px;
  color: #fff;
  font-size: 26px;
  font-weight: 900;
  background: linear-gradient(145deg, var(--wsc-purple), var(--wsc-purple-light));
}

.wsc-brand strong,
.wsc-brand small {
  display: block;
}

.wsc-brand strong {
  font-size: 20px;
}

.wsc-brand small {
  color: var(--wsc-muted);
}

.wsc-sidebar button {
  width: 100%;
  min-height: 46px;
  border: 0;
  border-radius: 8px;
  margin-bottom: 8px;
  padding: 0 16px;
  color: #51465f;
  background: transparent;
  text-align: left;
  cursor: pointer;
}

.wsc-sidebar button:hover,
.wsc-sidebar button.is-active {
  color: var(--wsc-purple-dark);
  background: #eee6ff;
  font-weight: 800;
}

.wsc-main {
  min-width: 0;
}

.wsc-card {
  padding: 30px;
  box-shadow: 0 20px 50px rgba(51, 30, 98, 0.08);
}

.wsc-auth-view {
  min-height: 680px;
  padding: 46px 52px;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.96), rgba(250, 246, 255, 0.98)),
    radial-gradient(circle at 88% 12%, rgba(123, 84, 223, 0.12), transparent 30%);
}

.wsc-card h1,
.wsc-card h2,
.wsc-dashboard-head h1,
.wsc-panel h2 {
  margin: 6px 0 16px;
  line-height: 1.2;
}

.wsc-card h1,
.wsc-dashboard-head h1 {
  font-size: 36px;
}

.wsc-card h2,
.wsc-panel h2 {
  font-size: 24px;
}

.wsc-lead,
.wsc-prompt,
.wsc-current-meta,
.wsc-muted {
  color: var(--wsc-muted);
}

.wsc-lead {
  max-width: 680px;
  margin: 0 0 24px;
  font-size: 17px;
  line-height: 1.8;
}

.wsc-kicker {
  margin: 0;
  color: var(--wsc-purple-dark);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.wsc-auth-tabs {
  display: inline-flex;
  gap: 8px;
  padding: 6px;
  border-radius: 8px;
  background: #efe8ff;
  margin-bottom: 22px;
}

.wsc-auth-tabs button {
  min-height: 38px;
  border: 0;
  border-radius: 8px;
  padding: 0 16px;
  color: var(--wsc-purple-dark);
  background: transparent;
  font-weight: 800;
  cursor: pointer;
}

.wsc-auth-tabs button.is-active {
  color: #fff;
  background: var(--wsc-purple);
}

.wsc-form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin: 20px 0;
}

.wsc-app label,
.wsc-admin label {
  display: grid;
  gap: 8px;
  color: #4c415e;
  font-weight: 800;
  margin-bottom: 14px;
}

.wsc-app input,
.wsc-app textarea,
.wsc-admin input,
.wsc-admin textarea,
.wsc-admin select {
  width: 100%;
  border: 1px solid #d9c9f8;
  border-radius: 8px;
  padding: 13px 15px;
  color: var(--wsc-ink);
  background: #fff;
  box-sizing: border-box;
}

.wsc-app input:focus,
.wsc-app textarea:focus,
.wsc-admin input:focus,
.wsc-admin textarea:focus,
.wsc-admin select:focus {
  border-color: var(--wsc-purple);
  box-shadow: 0 0 0 4px rgba(118, 81, 216, 0.12);
  outline: none;
}

.wsc-primary,
.wsc-secondary {
  min-height: 44px;
  border-radius: 8px;
  padding: 0 18px;
  border: 1px solid transparent;
  font-weight: 900;
  text-decoration: none;
  cursor: pointer;
}

.wsc-primary {
  color: #fff;
  background: linear-gradient(135deg, var(--wsc-purple), var(--wsc-purple-dark));
  box-shadow: 0 12px 26px rgba(118, 81, 216, 0.24);
}

.wsc-primary:disabled {
  opacity: 0.52;
  cursor: not-allowed;
}

.wsc-secondary {
  color: var(--wsc-purple-dark);
  background: #fff;
  border-color: var(--wsc-line);
}

a.wsc-secondary {
  display: inline-flex;
  align-items: center;
}

.wsc-message {
  min-height: 24px;
  color: var(--wsc-muted);
  font-weight: 700;
}

.wsc-message[data-kind="error"] {
  color: var(--wsc-red);
}

.wsc-dashboard-head,
.wsc-section-head,
.wsc-practice-head,
.wsc-action-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.wsc-dashboard-head {
  margin-bottom: 20px;
}

.wsc-stat-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 18px;
}

.wsc-stat-grid.compact {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.wsc-stat-grid > div,
.wsc-admin-stats > div {
  padding: 18px;
}

.wsc-stat-grid span,
.wsc-admin-stats span {
  display: block;
  color: var(--wsc-muted);
  font-weight: 700;
}

.wsc-stat-grid strong,
.wsc-admin-stats strong {
  display: block;
  margin-top: 5px;
  font-size: 30px;
}

.wsc-module-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin: 18px 0;
}

.wsc-module-grid button {
  min-height: 116px;
  padding: 20px;
  text-align: left;
  cursor: pointer;
}

.wsc-module-grid strong,
.wsc-module-grid span {
  display: block;
}

.wsc-module-grid strong {
  font-size: 21px;
  margin-bottom: 10px;
}

.wsc-module-grid span {
  color: var(--wsc-muted);
}

.wsc-course-list {
  display: grid;
  gap: 12px;
}

.wsc-course-card {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
  padding: 18px;
}

.wsc-course-card span {
  display: inline-flex;
  margin-bottom: 6px;
  padding: 4px 9px;
  border-radius: 999px;
  color: var(--wsc-purple-dark);
  background: #eee6ff;
  font-size: 12px;
  font-weight: 900;
}

.wsc-course-card h3 {
  margin: 0 0 6px;
  font-size: 20px;
}

.wsc-course-card p,
.wsc-empty {
  margin: 0;
  color: var(--wsc-muted);
}

.wsc-detail-panel {
  margin-top: 18px;
}

.wsc-word-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.wsc-word-cloud span {
  padding: 9px 12px;
  border-radius: 8px;
  color: var(--wsc-purple-dark);
  background: #eee6ff;
  font-weight: 900;
}

.wsc-prompt {
  margin: 10px 0 0;
  font-size: 18px;
}

.wsc-progress-label {
  flex: 0 0 auto;
  color: var(--wsc-purple-dark);
  font-weight: 900;
}

.wsc-player {
  display: flex;
  align-items: center;
  gap: 16px;
  margin: 26px 0;
  padding: 18px;
  border: 1px solid var(--wsc-line);
  border-radius: 8px;
  background: var(--wsc-soft);
}

.wsc-play {
  width: 84px;
  height: 84px;
  border: 0;
  border-radius: 50%;
  color: #fff;
  background: linear-gradient(145deg, var(--wsc-purple), var(--wsc-purple-light));
  font-weight: 900;
  cursor: pointer;
}

.wsc-player strong,
.wsc-player span {
  display: block;
}

.wsc-player span {
  color: var(--wsc-muted);
}

.wsc-slots {
  border: 1px solid var(--wsc-line);
  border-radius: 8px;
  padding: 18px;
  background: linear-gradient(180deg, #fff, #fbf8ff);
  display: flex;
  flex-wrap: wrap;
  align-items: end;
  gap: 10px;
  margin-bottom: 18px;
}

.wsc-slot {
  min-width: 70px;
  min-height: 56px;
  display: grid;
  place-items: center;
  color: #59406f;
  border-bottom: 3px solid #bca9dd;
  font-size: 28px;
  font-weight: 900;
}

.wsc-slot.is-filled {
  border-bottom-color: var(--wsc-purple-dark);
}

.wsc-space {
  margin-bottom: 8px;
  color: #a397b4;
  font-size: 10px;
  font-weight: 900;
  text-transform: uppercase;
}

.wsc-answer-label {
  margin-top: 18px;
}

.wsc-answer {
  min-height: 130px;
  font-size: 18px;
  line-height: 1.7;
}

.wsc-action-row {
  margin: 16px 0;
  padding: 14px 16px;
  border: 1px solid var(--wsc-line);
  border-radius: 8px;
  background: #fff;
}

.wsc-fill-state {
  color: var(--wsc-muted);
}

.wsc-result {
  margin-top: 20px;
}

.wsc-result-card {
  border: 1px solid var(--wsc-line);
  border-radius: 8px;
  padding: 18px;
  background: #fff;
}

.wsc-result-card h3 {
  margin: 0 0 12px;
}

.wsc-token-line {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
}

.wsc-token {
  border-radius: 8px;
  padding: 9px 11px;
  font-weight: 900;
}

.wsc-token.ok {
  color: var(--wsc-purple-dark);
  background: #eee6ff;
}

.wsc-token.wrong {
  color: var(--wsc-red);
  background: #fff0f1;
}

.wsc-token.missing {
  color: var(--wsc-amber);
  background: #fff7e8;
}

.wsc-admin-hero {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  padding: 22px;
  margin: 18px 0;
}

.wsc-admin-hero h1 {
  margin: 3px 0;
}

.wsc-admin-hero p {
  color: var(--wsc-muted);
}

.wsc-admin-stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 18px;
}

.wsc-admin-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(340px, 0.85fr);
  gap: 18px;
  margin-bottom: 18px;
}

.wsc-panel {
  padding: 20px;
}

.wsc-record-row,
.wsc-inline-form {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 12px 0 18px;
}

.wsc-record-status {
  color: var(--wsc-muted);
}

.wsc-inline-form select,
.wsc-inline-form input {
  width: auto;
  min-width: 150px;
}

@media (max-width: 980px) {
  .wsc-student-app,
  .wsc-admin-grid,
  .wsc-admin-stats,
  .wsc-stat-grid,
  .wsc-module-grid {
    grid-template-columns: 1fr;
  }

  .wsc-form-grid,
  .wsc-dashboard-head,
  .wsc-section-head,
  .wsc-practice-head,
  .wsc-action-row,
  .wsc-admin-hero,
  .wsc-course-card {
    display: block;
  }

  .wsc-sidebar {
    min-height: auto;
  }

  .wsc-card,
  .wsc-auth-view {
    padding: 22px;
  }
}