:root {
  --rglc-primary: #0284c7;
  --rglc-primary-hover: #0369a1;
  --rglc-bg-card: #ffffff;
  --rglc-border: #e2e8f0;
  --rglc-text: #1e293b;
  --rglc-muted: #64748b;
  --rglc-success: #16a34a;
  --rglc-warning: #b45309;
  --rglc-danger: #dc2626;
  --rglc-badge-bg: #dcfce7;
  --rglc-badge-text: #15803d;
}

.rglc-main {
  padding: 1.5rem 1rem 3rem 1rem;
  max-width: 1200px;
  margin: 0 auto;
  color: var(--rglc-text);
  font-family: inherit;
}

.rglc-wrap {
  width: 100%;
}

.rglc-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 992px) {
  .rglc-grid {
    grid-template-columns: 1.05fr 0.95fr;
  }
}

.rglc-card {
  background: var(--rglc-bg-card);
  border: 1px solid var(--rglc-border);
  border-radius: 12px;
  padding: 1.5rem;
  box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

.rglc-card-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.rglc-card-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin: 0;
  color: var(--rglc-text);
}

.rglc-sub-title {
  font-size: 0.95rem;
  font-weight: 700;
  margin: 0 0 0.75rem 0;
  color: var(--rglc-text);
}

.rglc-head-btns {
  display: flex;
  gap: 0.5rem;
}

.rglc-form-group {
  margin-bottom: 1.25rem;
}

.rglc-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
  color: var(--rglc-text);
}

.rglc-textarea {
  width: 100%;
  box-sizing: border-box;
  padding: 0.75rem 0.85rem;
  border: 1px solid var(--rglc-border);
  border-radius: 6px;
  background: transparent;
  color: var(--rglc-text);
  font-family: inherit;
  font-size: 0.95rem;
  line-height: 1.6;
}

.rglc-textarea:focus {
  outline: none;
  border-color: var(--rglc-primary);
  box-shadow: 0 0 0 3px rgba(2, 132, 199, 0.15);
}

.rglc-stats-strip {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.5rem;
  background: rgba(0,0,0,0.02);
  border: 1px solid var(--rglc-border);
  border-radius: 8px;
  padding: 0.75rem;
}

@media (min-width: 576px) {
  .rglc-stats-strip {
    grid-template-columns: repeat(5, 1fr);
  }
}

.rglc-stat-item {
  display: flex;
  flex-direction: column;
}

.rglc-stat-label {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--rglc-muted);
  margin-bottom: 0.2rem;
}

.rglc-stat-val {
  font-size: 0.95rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--rglc-text);
}

/* Hero Score Card */
.rglc-hero-score {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  background: rgba(0,0,0,0.015);
  border: 1px solid var(--rglc-border);
  border-radius: 8px;
  padding: 1.25rem;
  margin-bottom: 1.25rem;
}

@media (min-width: 576px) {
  .rglc-hero-score {
    flex-direction: row;
    align-items: center;
  }
}

.rglc-hero-left {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.rglc-hero-label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--rglc-muted);
  margin-bottom: 0.25rem;
}

.rglc-score-num {
  font-size: 2.75rem;
  font-weight: 900;
  line-height: 1.1;
  color: var(--rglc-text);
  font-variant-numeric: tabular-nums;
  margin-bottom: 0.4rem;
}

.rglc-score-badge {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  background: var(--rglc-badge-bg);
  color: var(--rglc-badge-text);
}

.rglc-badge-easy {
  background: #dcfce7;
  color: #15803d;
}

.rglc-badge-standard {
  background: #eff6ff;
  color: #1d4ed8;
}

.rglc-badge-difficult {
  background: #fffbeb;
  color: #b45309;
}

.rglc-badge-academic {
  background: #fee2e2;
  color: #b91c1c;
}

.rglc-hero-right {
  flex: 1.2;
  border-top: 1px solid var(--rglc-border);
  padding-top: 0.75rem;
}

@media (min-width: 576px) {
  .rglc-hero-right {
    border-top: none;
    border-left: 1px solid var(--rglc-border);
    padding-top: 0;
    padding-left: 1rem;
  }
}

.rglc-grade-pill {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  margin-bottom: 0.35rem;
}

.rglc-grade-lbl {
  font-size: 0.8rem;
  color: var(--rglc-muted);
}

.rglc-grade-val {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--rglc-primary);
}

.rglc-grade-desc {
  font-size: 0.825rem;
  color: var(--rglc-text);
  margin: 0;
  line-height: 1.4;
}

/* Formula Table */
.rglc-table-wrap {
  margin-bottom: 1.25rem;
  overflow-x: auto;
}

.rglc-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

.rglc-table th,
.rglc-table td {
  padding: 0.6rem 0.75rem;
  text-align: left;
  border-bottom: 1px solid var(--rglc-border);
}

.rglc-table th {
  background: rgba(0,0,0,0.02);
  color: var(--rglc-muted);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
}

/* Audience Box */
.rglc-audience-box {
  background: #f0f9ff;
  border: 1px solid #bae6fd;
  border-radius: 8px;
  padding: 1rem;
  margin-bottom: 1.25rem;
}

.rglc-audience-content {
  font-size: 0.85rem;
  line-height: 1.5;
}

.rglc-audience-p {
  margin: 0;
  color: var(--rglc-text);
}

/* Time Grid */
.rglc-time-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

.rglc-time-card {
  background: rgba(0,0,0,0.02);
  border: 1px solid var(--rglc-border);
  border-radius: 8px;
  padding: 0.75rem;
  display: flex;
  flex-direction: column;
}

.rglc-time-lbl {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--rglc-muted);
  margin-bottom: 0.2rem;
}

.rglc-time-val {
  font-size: 1.2rem;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  line-height: 1.2;
}

.rglc-time-sub {
  font-size: 0.7rem;
  color: var(--rglc-muted);
  margin-top: 0.2rem;
}

/* Action Buttons */
.rglc-btn-ghost {
  background: transparent;
  color: var(--rglc-text);
  border: 1px solid var(--rglc-border);
  border-radius: 6px;
  padding: 0.35rem 0.65rem;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
}

.rglc-btn-ghost:hover {
  background: var(--rglc-border);
}

.rglc-btn-action {
  background: var(--rglc-primary);
  color: #ffffff;
  border: none;
  border-radius: 6px;
  padding: 0.55rem 1rem;
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  min-height: 40px;
}

.rglc-btn-action:hover {
  background: var(--rglc-primary-hover);
}

.rglc-action-bar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.rglc-status-msg {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--rglc-success);
}
/* tf:dark-palette — generated by migrate_chrome.py */
/* Neutrals inherit the shared chrome tokens so all tools share one
   ground; brand hues are kept and lightened, never inverted. */
[data-theme="dark"] {
  --rglc-primary: #81bcda;
  --rglc-primary-hover: #69aed4;
  --rglc-bg-card: var(--tf-surface);
  --rglc-border: var(--tf-surface);
  --rglc-text: var(--tf-ink);
  --rglc-muted: var(--tf-ink-faint);
  --rglc-success: #7ad89d;
  --rglc-warning: #d9a57d;
  --rglc-danger: #da8181;
  --rglc-badge-bg: var(--tf-surface);
  --rglc-badge-text: #5ed089;
}