/* ── Final Grade Calculator — tool-specific styles ────────────────────────────
   Global styles are inherited from /css/style.css.
   All colours reference CSS custom properties where possible.
   ─────────────────────────────────────────────────────────────────────────── */

.grd-section-note {
  margin: -0.35rem 0 1rem;
  font-size: 0.9375rem;
  color: var(--text-secondary);
}

/* ── Weighted grade rows ──────────────────────────────────────────────────── */
.grd-rows-head {
  display: grid;
  grid-template-columns: 1fr 90px 90px 40px;
  gap: 0.5rem;
  padding: 0 0.1rem 0.35rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

@media (max-width: 640px) {
  .grd-rows-head {
    display: none;
  }
}

.grd-rows {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.grd-row {
  display: grid;
  grid-template-columns: 1fr 90px 90px 40px;
  gap: 0.5rem;
  align-items: center;
}

@media (max-width: 640px) {
  .grd-row {
    grid-template-columns: 1fr 1fr;
    grid-template-areas:
      "name name"
      "weight score"
      "remove remove";
    padding: 0.6rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-control, 6px);
  }
  .grd-row-name { grid-area: name; }
  .grd-row-weight { grid-area: weight; }
  .grd-row-score { grid-area: score; }
  .grd-row-remove { grid-area: remove; justify-self: end; }
}

.grd-row input {
  padding: 0.55rem 0.6rem;
  font-size: 0.9375rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-control, 6px);
  background: var(--bg-input, var(--bg-card));
  color: var(--text-primary);
  box-sizing: border-box;
  width: 100%;
}

.grd-row input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--focus-ring, rgba(37, 99, 235, 0.12));
}

.grd-row-weight,
.grd-row-score {
  text-align: center;
}

.grd-row-remove {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  padding: 0;
  font-size: 1.25rem;
  line-height: 1;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-control, 6px);
  background: var(--bg-card);
  color: var(--text-secondary);
  cursor: pointer;
  transition: background 0.12s, border-color 0.12s, color 0.12s;
}

.grd-row-remove:hover {
  border-color: var(--color-danger, #ef4444);
  color: var(--color-danger, #ef4444);
}

.grd-actions-row {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
  margin-top: 1rem;
}

/* ── Warning banner ───────────────────────────────────────────────────────── */
.grd-warning {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  margin: 1rem 0 0;
  padding: 0.65rem 0.85rem;
  font-size: 0.875rem;
  color: var(--text-primary);
  background: color-mix(in srgb, var(--color-warning, #eab308) 14%, var(--bg-card));
  border: 1px solid color-mix(in srgb, var(--color-warning, #eab308) 45%, var(--border-color));
  border-radius: var(--radius-control, 6px);
}

.grd-warning::before {
  content: "⚠";
  flex-shrink: 0;
  color: var(--color-warning, #eab308);
  font-weight: 700;
}

/* ── Weighted result card ─────────────────────────────────────────────────── */
.grd-result-card {
  margin-top: 1.25rem;
  padding: 1.1rem 1.25rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.25rem 2rem;
  background: var(--bg-secondary, var(--bg-card));
  border: 1px solid var(--border-color);
  border-radius: var(--radius-card, 8px);
}

.grd-result-main,
.grd-result-side {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.grd-result-label {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-secondary);
}

.grd-result-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.02em;
}

.grd-result-value--small {
  font-size: 1.25rem;
  color: var(--text-primary);
}

.grd-letter-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  font-size: 1.35rem;
  font-weight: 700;
  color: #fff;
  background: var(--color-success, #22c55e);
}

.grd-letter-badge[data-grade="B"] { background: var(--accent); }
.grd-letter-badge[data-grade="C"] { background: var(--color-warning, #eab308); color: #1a1a1a; }
.grd-letter-badge[data-grade="D"] { background: #f97316; }
.grd-letter-badge[data-grade="F"] { background: var(--color-danger, #ef4444); }

/* ── Letter grade scale table ─────────────────────────────────────────────── */
.grd-scale-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9375rem;
}

.grd-scale-table th,
.grd-scale-table td {
  padding: 0.5rem 0.75rem;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

.grd-scale-table th {
  font-weight: 600;
  color: var(--text-secondary);
}

/* ── Grade-needed calculator ──────────────────────────────────────────────── */
.grd-needed-fields {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

@media (max-width: 720px) {
  .grd-needed-fields {
    grid-template-columns: 1fr;
  }
}

.grd-field {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.grd-label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-primary);
}

.grd-needed-result {
  margin-top: 1.25rem;
  padding: 1.1rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  background: var(--bg-secondary, var(--bg-card));
  border: 1px solid var(--border-color);
  border-radius: var(--radius-card, 8px);
}

.grd-needed-message {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--text-secondary);
}

.grd-needed-result.grd-needed--danger .grd-result-value {
  color: var(--color-danger, #ef4444);
}

.grd-needed-result.grd-needed--danger {
  background: color-mix(in srgb, var(--color-danger, #ef4444) 10%, var(--bg-card));
  border-color: color-mix(in srgb, var(--color-danger, #ef4444) 40%, var(--border-color));
}

.grd-needed-result.grd-needed--success .grd-result-value {
  color: var(--color-success, #22c55e);
}

.grd-needed-result.grd-needed--error {
  background: color-mix(in srgb, var(--color-danger, #ef4444) 10%, var(--bg-card));
  border-color: color-mix(in srgb, var(--color-danger, #ef4444) 40%, var(--border-color));
}

.grd-needed-result.grd-needed--error .grd-needed-message {
  color: var(--color-danger, #ef4444);
}