.gpa-page {
  display: grid;
  gap: 24px;
}

.gpa-hero {
  padding: 28px;
  background: linear-gradient(135deg, #eef3ff 0%, #f8fbff 100%);
  border: 1px solid rgba(49, 87, 246, 0.14);
}

.gpa-hero-copy h1 {
  margin: 0 0 8px;
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.05;
}

.gpa-hero-copy p {
  margin: 0;
  max-width: 700px;
  font-size: 1.02rem;
  color: #52607a;
}

.gpa-shell {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.8fr);
  gap: 22px;
  align-items: start;
}

.gpa-panel,
.gpa-results,
.gpa-info-card,
.gpa-content-card,
.gpa-formula-card,
.gpa-example-card,
.gpa-related-card,
.gpa-note-card,
.gpa-highlight-box {
  background: #fff;
  border: 1px solid #e4e8f4;
  border-radius: 24px;
  box-shadow: 0 18px 45px rgba(15, 23, 42, 0.05);
}

.gpa-panel,
.gpa-results,
.gpa-content-card {
  padding: 24px;
}

.gpa-settings-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 18px;
}

.gpa-setting-field {
  display: grid;
  gap: 8px;
}

.gpa-setting-field span,
.gpa-table-head span,
.gpa-row-label {
  font-size: 0.9rem;
  font-weight: 700;
  color: #243145;
}

.gpa-setting-field input,
.gpa-setting-field select,
.gpa-field,
.gpa-select {
  width: 100%;
  min-height: 48px;
  border: 1px solid #d7def0;
  border-radius: 14px;
  padding: 12px 14px;
  font: inherit;
  color: #101828;
  background: #fff;
}

.gpa-setting-field input:focus,
.gpa-setting-field select:focus,
.gpa-field:focus,
.gpa-select:focus {
  outline: 0;
  border-color: #3157f6;
  box-shadow: 0 0 0 4px rgba(49, 87, 246, 0.12);
}

.gpa-table {
  display: grid;
  gap: 12px;
}

.gpa-table-head,
.gpa-row {
  display: grid;
  grid-template-columns: minmax(160px, 1.4fr) minmax(110px, 1fr) minmax(90px, 0.8fr) minmax(110px, 1fr) 52px;
  gap: 10px;
  align-items: center;
}

.gpa-table-head {
  padding: 0 8px;
}

.gpa-row {
  padding: 12px;
  border: 1px solid #ebeff7;
  border-radius: 18px;
  background: #fbfcff;
}

.gpa-grade-wrap,
.gpa-level-wrap {
  display: block;
}

.gpa-head-action {
  text-align: center;
}

.gpa-remove {
  width: 40px;
  height: 40px;
  border: 0;
  border-radius: 999px;
  background: #eef2ff;
  color: #3157f6;
  font-size: 1.2rem;
  font-weight: 700;
  cursor: pointer;
}

.gpa-remove:hover {
  background: #dde7ff;
}

.gpa-controls {
  margin-top: 14px;
}

.gpa-add-btn,
.gpa-calc-btn,
.gpa-reset-btn {
  border: 0;
  border-radius: 14px;
  min-height: 48px;
  padding: 0 18px;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

.gpa-add-btn,
.gpa-reset-btn {
  background: #eef2ff;
  color: #2640be;
}

.gpa-calc-btn {
  background: #3157f6;
  color: #fff;
  box-shadow: 0 14px 30px rgba(49, 87, 246, 0.24);
}

.gpa-action-row {
  display: flex;
  gap: 12px;
  margin-top: 16px;
  flex-wrap: wrap;
}

.gpa-results {
  display: grid;
  gap: 16px;
  position: sticky;
  top: 92px;
}

.gpa-results-title {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 12px;
}

.gpa-results-title span {
  height: 1px;
  background: linear-gradient(90deg, rgba(49, 87, 246, 0), rgba(49, 87, 246, 0.28), rgba(49, 87, 246, 0));
}

.gpa-results-title h2 {
  margin: 0;
  font-size: 1rem;
}

.gpa-results-large,
.gpa-results-mini,
.gpa-info-grid,
.gpa-formula-grid,
.gpa-example-grid,
.gpa-related-grid,
.gpa-scale-notes {
  display: grid;
  gap: 14px;
}

.gpa-results-large {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.gpa-results-mini {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.gpa-result-card {
  padding: 18px;
  border-radius: 20px;
  background: linear-gradient(180deg, #fcfdff 0%, #f5f8ff 100%);
  border: 1px solid #e3eaff;
}

.gpa-result-card h3 {
  margin: 0 0 10px;
  font-size: 0.92rem;
  color: #31415f;
}

.gpa-result-value {
  margin: 0;
  font-size: clamp(2rem, 5vw, 2.6rem);
  line-height: 1;
  font-weight: 800;
  color: #0f172a;
}

.gpa-result-sub,
.gpa-summary-note,
.gpa-content-head p,
.gpa-info-card p,
.gpa-formula-card p,
.gpa-example-card p,
.gpa-related-card p,
.gpa-faq-item p,
.gpa-highlight-box li,
.gpa-note-card p,
.gpa-reference-list a {
  color: #52607a;
}

.gpa-result-sub {
  margin: 10px 0 0;
  font-size: 0.92rem;
}

.gpa-result-mini-value {
  margin: 0;
  font-size: 1.45rem;
  font-weight: 800;
  color: #0f172a;
}

.gpa-summary-note {
  padding: 16px 18px;
  border-radius: 18px;
  background: #f7f9ff;
  border: 1px solid #e6ecff;
  font-size: 0.96rem;
}

.gpa-info-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.gpa-info-card {
  padding: 20px;
}

.gpa-info-card h2,
.gpa-content-head h2,
.gpa-formula-card h3,
.gpa-example-card h3,
.gpa-related-card h3,
.gpa-highlight-box h3 {
  margin: 0 0 10px;
  color: #111827;
}

.gpa-info-card h2 {
  font-size: 1.02rem;
}

.gpa-info-card p,
.gpa-content-head p,
.gpa-formula-card p,
.gpa-example-card p,
.gpa-related-card p,
.gpa-highlight-box ul,
.gpa-faq-item p,
.gpa-step-list,
.gpa-example-card ol,
.gpa-reference-list {
  margin: 0;
}

.gpa-content-head {
  margin-bottom: 18px;
}

.gpa-two-col {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 0.9fr);
  gap: 18px;
}

.gpa-step-list {
  padding-left: 18px;
  display: grid;
  gap: 10px;
  color: #243145;
}

.gpa-highlight-box {
  padding: 18px;
}

.gpa-highlight-box ul {
  padding-left: 18px;
  display: grid;
  gap: 10px;
}

.gpa-formula-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.gpa-formula-card {
  padding: 20px;
}

.gpa-formula-card pre {
  margin: 0 0 12px;
  padding: 14px;
  white-space: pre-wrap;
  font: 700 0.98rem/1.55 'Inter', sans-serif;
  color: #12203c;
  background: #f5f8ff;
  border: 1px solid #e2e9ff;
  border-radius: 16px;
}

.gpa-table-wrap {
  overflow-x: auto;
  border: 1px solid #e8edf7;
  border-radius: 20px;
}

.gpa-grade-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 720px;
}

.gpa-grade-table th,
.gpa-grade-table td {
  padding: 14px 16px;
  text-align: left;
  border-bottom: 1px solid #ecf0f7;
}

.gpa-grade-table th {
  background: #f7f9ff;
  color: #22304a;
  font-size: 0.92rem;
}

.gpa-grade-table td {
  color: #31415f;
}

.gpa-scale-notes {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 16px;
}

.gpa-note-card {
  padding: 18px;
}

.gpa-example-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.gpa-example-card {
  padding: 20px;
}

.gpa-example-card ol {
  padding-left: 18px;
  display: grid;
  gap: 8px;
  color: #243145;
}

.gpa-example-result {
  margin-top: 14px !important;
  font-weight: 700;
  color: #172554 !important;
}

.gpa-faq-list {
  display: grid;
  gap: 12px;
}

.gpa-faq-item {
  border: 1px solid #e5eaf6;
  border-radius: 18px;
  background: #fbfcff;
  padding: 0 18px;
}

.gpa-faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 18px 0;
  font-weight: 700;
  color: #111827;
}

.gpa-faq-item summary::-webkit-details-marker {
  display: none;
}

.gpa-faq-item p {
  padding: 0 0 18px;
}

.gpa-related-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.gpa-related-card {
  padding: 20px;
  text-decoration: none;
}

.gpa-related-card:hover {
  border-color: #ccd7ff;
  transform: translateY(-1px);
}

.gpa-reference-list {
  padding-left: 18px;
  display: grid;
  gap: 8px;
}

.gpa-reference-list a {
  text-decoration: none;
}

.gpa-reference-list a:hover {
  color: #3157f6;
}

.gpa-hidden {
  display: none !important;
}

@media (max-width: 1120px) {
  .gpa-shell,
  .gpa-two-col,
  .gpa-formula-grid,
  .gpa-example-grid,
  .gpa-related-grid,
  .gpa-scale-notes,
  .gpa-info-grid {
    grid-template-columns: 1fr;
  }

  .gpa-results {
    position: static;
  }
}

@media (max-width: 820px) {
  .gpa-settings-grid,
  .gpa-results-large,
  .gpa-results-mini {
    grid-template-columns: 1fr;
  }

  .gpa-table-head {
    display: none;
  }

  .gpa-row {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .gpa-row .gpa-remove {
    justify-self: end;
  }

  .gpa-field,
  .gpa-select,
  .gpa-setting-field input,
  .gpa-setting-field select {
    min-height: 46px;
  }
}