/* =========================================================
   EZ Grader — tool-specific styles.
   Layered on /tools/_shared/tool.css.
   ========================================================= */

/* ---------- Inputs ---------- */
.grader-inputs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
  margin-bottom: var(--space-5);
}
.grader-field {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.grader-field label {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--text-muted);
}
.grader-field input {
  width: 100%;
  padding: 14px 18px;
  background: var(--surface-inset);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font: inherit;
  font-size: 24px;
  font-weight: 700;
  color: var(--text);
  text-align: center;
  font-variant-numeric: tabular-nums;
  transition: var(--transition-colors);
}
.grader-field input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-ring);
}

/* ---------- Result ---------- */
.grader-result {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-6);
  margin-bottom: var(--space-5);
  background: var(--surface-inset);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: var(--transition-colors);
}

.grader-percent {
  display: flex;
  align-items: baseline;
  gap: 4px;
  font-variant-numeric: tabular-nums;
}
.grader-percent-value {
  font-size: clamp(48px, 12vw, 80px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--text);
  transition: color 0.18s ease;
}
.grader-percent-pct {
  font-size: clamp(28px, 6vw, 40px);
  font-weight: 600;
  color: var(--text-muted);
  line-height: 1;
}

.grader-letter {
  font-size: clamp(56px, 14vw, 96px);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
  padding: 4px 18px;
  border-left: 1px solid var(--border);
}

.grader-fraction {
  grid-column: 1 / -1;
  font-size: 14px;
  color: var(--text-muted);
  text-align: center;
  font-variant-numeric: tabular-nums;
  padding-top: var(--space-2);
  border-top: 1px dashed var(--border);
}

/* Tone the result by grade band */
.grader-result[data-band="A"] .grader-letter { color: var(--success, #16A34A); }
.grader-result[data-band="B"] .grader-letter { color: var(--accent); }
.grader-result[data-band="C"] .grader-letter { color: #CA8A04; }
.grader-result[data-band="D"] .grader-letter { color: #EA580C; }
.grader-result[data-band="F"] .grader-letter { color: var(--danger, #DC2626); }

/* ---------- Customize scale ---------- */
.grader-scale {
  margin-bottom: var(--space-5);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface-inset);
}
.grader-scale > summary {
  cursor: pointer;
  padding: 12px 16px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  list-style: none;
  display: flex;
  align-items: center;
  gap: 8px;
}
.grader-scale > summary::-webkit-details-marker { display: none; }
.grader-scale > summary::before {
  content: '+';
  display: inline-block;
  width: 14px;
  text-align: center;
  font-weight: 700;
  color: var(--accent);
  transition: transform 0.18s ease;
}
.grader-scale[open] > summary::before { content: '−'; }

.grader-scale-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
  padding: 0 16px 16px;
}
@media (min-width: 540px) {
  .grader-scale-grid {
    grid-template-columns: repeat(4, 1fr) auto;
    align-items: center;
  }
}
.grader-scale-grid label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
}
.grader-scale-grid input {
  width: 64px;
  padding: 6px 8px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  font: inherit;
  font-size: 13px;
  font-weight: 600;
  text-align: center;
  color: var(--text);
  font-variant-numeric: tabular-nums;
}
.grader-scale-grid input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-ring);
}

.btn-link {
  background: none;
  border: none;
  color: var(--accent);
  font-size: 13px;
  font-weight: 600;
  padding: 0;
  cursor: pointer;
}
.btn-link:hover { color: var(--accent-hover); text-decoration: underline; }

/* ---------- Reference table ---------- */
.grader-table-wrap { margin-top: var(--space-2); }
.grader-table-wrap .section-eyebrow { margin-bottom: var(--space-3); }

.grader-table-scroll {
  max-height: 320px;
  overflow-y: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
}

.grader-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  font-variant-numeric: tabular-nums;
}
.grader-table th,
.grader-table td {
  padding: 8px 12px;
  text-align: center;
  color: var(--text);
  border-bottom: 1px solid var(--border);
}
.grader-table thead th {
  position: sticky;
  top: 0;
  background: var(--surface-inset);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
}
.grader-table tbody tr.is-current {
  background: var(--accent-soft-bg);
  font-weight: 700;
}
.grader-table tbody tr.is-current td { color: var(--text); }
.grader-table .grade-cell[data-band="A"] { color: var(--success, #16A34A); font-weight: 700; }
.grader-table .grade-cell[data-band="B"] { color: var(--accent); font-weight: 700; }
.grader-table .grade-cell[data-band="C"] { color: #CA8A04; font-weight: 700; }
.grader-table .grade-cell[data-band="D"] { color: #EA580C; font-weight: 700; }
.grader-table .grade-cell[data-band="F"] { color: var(--danger, #DC2626); font-weight: 700; }

@media print {
  .tool-header,
  .tool-footer,
  .grader-inputs,
  .grader-scale,
  .article,
  .attenda-cta,
  .skip-link { display: none !important; }
  body { background: #fff !important; color: #000 !important; }
  .widget-card {
    box-shadow: none !important;
    border: none !important;
    padding: 0 !important;
  }
  .grader-result {
    background: #fff !important;
    border: 1px solid #999 !important;
  }
  .grader-table-scroll {
    max-height: none !important;
    overflow: visible !important;
    border: 1px solid #999 !important;
  }
  .grader-table th,
  .grader-table td {
    background: #fff !important;
    color: #000 !important;
    border-color: #999 !important;
  }
}