/* =========================================================
   GPA Calculator — tool-specific styles.
   Layered on /tools/_shared/tool.css.
   ========================================================= */

/* ---------- Scale toggle ---------- */
.gpa-scale {
  margin-bottom: var(--space-5);
}
.gpa-scale-toggle {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2);
  padding: 4px;
  background: var(--surface-inset);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.gpa-scale-option {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  transition: var(--transition-colors);
}
.gpa-scale-option:hover { color: var(--text); }
.gpa-scale-option input {
  position: absolute;
  opacity: 0;
  inset: 0;
  width: 100%;
  height: 100%;
  margin: 0;
  cursor: pointer;
}
.gpa-scale-option:has(input:checked) {
  background: var(--surface);
  color: var(--text);
  box-shadow: var(--shadow-sm);
}
.gpa-scale-option:has(input:focus-visible) {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ---------- Courses section ---------- */
.gpa-courses {
  margin-bottom: var(--space-6);
}
.gpa-courses-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}
.gpa-courses-header .section-eyebrow {
  margin-bottom: 0;
}

.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; }

/* ---------- Row layout ---------- */
.gpa-rows-head,
.gpa-row {
  display: grid;
  grid-template-columns: 1fr 110px 80px 36px;
  gap: var(--space-2);
  align-items: center;
}

.gpa-rows-head {
  padding: 0 var(--space-2) var(--space-2);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
}
.gpa-rows-head .gpa-col-credits {
  text-align: center;
}

.gpa-rows {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
}

.gpa-row {
  padding: var(--space-2);
  background: var(--surface-inset);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: var(--transition-colors);
}

.gpa-row input[type="text"],
.gpa-row select,
.gpa-row input[type="number"] {
  width: 100%;
  padding: 10px 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font: inherit;
  font-size: 14px;
  color: var(--text);
  transition: var(--transition-colors);
}
.gpa-row input[type="text"]::placeholder {
  color: var(--text-subtle);
}
.gpa-row input[type="number"] {
  text-align: center;
  font-variant-numeric: tabular-nums;
  font-weight: 600;
}
.gpa-row select {
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12' fill='none' stroke='%2371717A' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'><polyline points='3 5 6 8 9 5'/></svg>");
  background-repeat: no-repeat;
  background-position: right 8px center;
  background-size: 12px 12px;
  padding-right: 26px;
}
.gpa-row input:focus,
.gpa-row select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-ring);
}

.gpa-row-remove {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  border: 1px solid transparent;
  background: transparent;
  transition: var(--transition-colors);
}
.gpa-row-remove:hover:not(:disabled) {
  color: var(--danger);
  border-color: var(--border);
  background: var(--danger-soft-bg);
}
.gpa-row-remove:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}
.gpa-row-remove svg {
  width: 16px;
  height: 16px;
}

@media (max-width: 560px) {
  .gpa-rows-head { display: none; }
  .gpa-row {
    grid-template-columns: 1fr 36px;
    grid-template-areas:
      "name remove"
      "grade grade"
      "credits credits";
    gap: var(--space-2);
  }
  .gpa-row .gpa-col-name { grid-area: name; }
  .gpa-row .gpa-col-grade { grid-area: grade; }
  .gpa-row .gpa-col-credits { grid-area: credits; }
  .gpa-row .gpa-col-action { grid-area: remove; }
}

/* ---------- Result ---------- */
.gpa-result {
  margin-top: var(--space-2);
  padding: var(--space-6);
  background: var(--surface-inset);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: var(--transition-colors);
}

.gpa-result-main {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-1);
  padding-bottom: var(--space-5);
  border-bottom: 1px dashed var(--border);
}
.gpa-result-label {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--text-muted);
}
.gpa-result-value {
  font-size: clamp(56px, 14vw, 88px);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}

.gpa-result-totals {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
  margin-top: var(--space-5);
}
.gpa-result-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  text-align: center;
}
.gpa-result-stat-label {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
}
.gpa-result-stat-value {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  font-variant-numeric: tabular-nums;
}

@media print {
  .tool-header,
  .tool-footer,
  .gpa-courses-header .btn-link,
  #btn-add-course,
  .gpa-row-remove,
  .gpa-scale,
  .article,
  .skip-link { display: none !important; }
  body { background: #fff !important; color: #000 !important; }
  .widget-card {
    box-shadow: none !important;
    border: none !important;
    padding: 0 !important;
  }
  .gpa-row,
  .gpa-result {
    background: #fff !important;
    border: 1px solid #999 !important;
  }
  .gpa-result-value { color: #000 !important; }
}