/* Height Calculator Styles */
.calculator-form {
  max-width: 600px;
  margin: 0 auto;
  padding: 20px;
  background: #f9f9f9;
  border-radius: 8px;
}

.form-group {
  margin-bottom: 15px;
}

.form-group label {
  display: block;
  margin-bottom: 5px;
  font-weight: bold;
}

.form-group input,
.form-group select {
  width: 100%;
  padding: 8px;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-size: 16px;
}

.height-inputs {
  display: flex;
  gap: 10px;
}

.height-inputs input {
  flex: 1;
}

.unit-toggle {
  display: flex;
  border: 1px solid #ddd;
  border-radius: 4px;
  overflow: hidden;
}

.unit-btn {
  flex: 1;
  padding: 10px;
  border: none;
  background: #fff;
  cursor: pointer;
  transition: background-color 0.2s;
}

.unit-btn.active {
  background: #007bff;
  color: white;
}

.calc-btn {
  width: 100%;
  padding: 12px;
  background: #28a745;
  color: white;
  border: none;
  border-radius: 4px;
  font-size: 16px;
  cursor: pointer;
  margin-top: 10px;
}

.calc-btn:hover {
  background: #218838;
}

.error-msg {
  color: #dc3545;
  margin-top: 10px;
  font-weight: bold;
}

.result-section {
  margin-top: 20px;
  padding: 20px;
  background: #e9ecef;
  border-radius: 8px;
}

.result-value {
  font-size: 24px;
  font-weight: bold;
  color: #28a745;
  margin: 10px 0;
}

/* Grade calculator layout */
.grade-calculator {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.grade-calculator .card {
  background: #fff;
  border-radius: 18px;
  padding: 1.5rem;
  box-shadow: 0 20px 45px rgb(15 23 42 / 10%);
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}

.section-header h3 {
  margin: 0;
  font-size: 1.1rem;
}

.mode-toggle {
  display: inline-flex;
  border: 1px solid var(--border-color);
  border-radius: 999px;
  overflow: hidden;
  margin-bottom: 0.5rem;
}

.mode-btn {
  padding: 0.6rem 1.25rem;
  border: none;
  background: transparent;
  cursor: pointer;
  font-weight: 600;
  color: var(--muted-color);
}

.mode-btn.active {
  background: var(--accent-color);
  color: #fff;
}

.mode-description {
  color: var(--muted-color);
  margin: 0;
}

.actions {
  display: flex;
  gap: 0.5rem;
}

.ghost {
  background: transparent;
  border: 1px solid var(--border-color);
  border-radius: 999px;
  padding: 0.4rem 1rem;
  cursor: pointer;
  color: var(--muted-color);
}

.ghost.danger {
  border-color: #f87171;
  color: #dc2626;
}

.table-wrapper {
  overflow-x: auto;
}

.table-wrapper table {
  width: 100%;
  border-collapse: collapse;
}

.table-wrapper th,
.table-wrapper td {
  padding: 0.5rem;
  border-bottom: 1px solid var(--border-color);
}

.table-wrapper input {
  width: 100%;
  padding: 0.35rem 0.5rem;
  border-radius: 6px;
  border: 1px solid var(--border-color);
}

tr.invalid input {
  border-color: #f97316;
  background: #fff7ed;
}

.warning {
  background: #fff7ed;
  color: #c2410c;
  padding: 0.8rem 1rem;
  border-radius: 10px;
  margin-bottom: 1rem;
  border: 1px solid #fdba74;
}

.category-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.category-card {
  background: #f9fafb;
  border-radius: 14px;
  padding: 1rem;
  border: 1px solid var(--border-color);
}

.category-header {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.category-fields {
  display: flex;
  gap: 0.75rem;
}

.category-fields input {
  padding: 0.35rem 0.5rem;
  border-radius: 6px;
  border: 1px solid var(--border-color);
}

.target-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
}

.target-grid input {
  width: 100%;
  padding: 0.55rem 0.75rem;
  border-radius: 8px;
  border: 1px solid var(--border-color);
}

.results-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.25rem;
}

.result-card {
  border-radius: 16px;
  padding: 1.5rem;
  color: #fff;
}

.result-card.success {
  background: linear-gradient(135deg, #10b981, #059669);
}

.result-card.warning {
  background: linear-gradient(135deg, #f97316, #ea580c);
}

.result-card.danger {
  background: linear-gradient(135deg, #ef4444, #dc2626);
}

.result-card.info {
  background: linear-gradient(135deg, #6366f1, #4f46e5);
}

.result-label {
  text-transform: uppercase;
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}

.result-value {
  font-size: 2.5rem;
  font-weight: 700;
}

.result-badge {
  display: inline-block;
  margin-top: 0.5rem;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.5);
  font-weight: 600;
}

.result-list {
  list-style: none;
  margin: 1rem 0 0;
  padding: 0;
  font-size: 0.9rem;
}

.result-list li {
  margin-bottom: 0.35rem;
  opacity: 0.9;
}

.category-breakdown {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.category-result-header {
  display: flex;
  justify-content: space-between;
}

.progress {
  height: 8px;
  background: #e5e7eb;
  border-radius: 999px;
  overflow: hidden;
  margin: 0.4rem 0;
}

.progress span {
  display: block;
  height: 100%;
  background: var(--accent-color);
}

.category-weight {
  font-size: 0.85rem;
  color: var(--muted-color);
}

.actions-bar {
  display: flex;
  gap: 1rem;
  align-items: center;
  flex-wrap: wrap;
}

.copy-status {
  font-size: 0.9rem;
  color: var(--muted-color);
  opacity: 0;
  transition: opacity 0.2s ease;
}

.copy-status.visible {
  opacity: 1;
}

.muted {
  color: var(--muted-color);
}

@media (max-width: 640px) {
  .category-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .category-fields {
    width: 100%;
    flex-direction: column;
  }

  .actions-bar {
    flex-direction: column;
    align-items: stretch;
  }
}

.percentile-info,
.mid-parental-info {
  margin: 10px 0;
}

.info-text {
  margin-top: 15px;
  font-size: 14px;
  color: #666;
}

.info-text p {
  margin: 5px 0;
}

/* Mobile responsive */
@media (max-width: 480px) {
  .calculator-form {
    padding: 15px;
  }

  .height-inputs {
    flex-direction: column;
  }

  .result-value {
    font-size: 20px;
  }
}

/* Calorie deficit calculator */
.calculator-widget.calorie-deficit {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.calorie-deficit .calculator-form {
  max-width: none;
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: 16px;
}

.calorie-deficit .form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
}

.calorie-deficit .form-field label {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-weight: 600;
  color: var(--text-color);
}

.calorie-deficit .form-field input,
.calorie-deficit .form-field select {
  width: 100%;
  padding: 0.55rem 0.75rem;
  border-radius: 10px;
  border: 1px solid var(--border-color);
  font-size: 0.95rem;
}

.calorie-deficit .checkbox-field {
  display: flex;
  align-items: center;
}

.calorie-deficit .checkbox-field input {
  width: auto;
  margin-right: 0.5rem;
}

.calorie-deficit .field-error {
  color: #dc2626;
  font-size: 0.8rem;
  margin-top: 0.35rem;
}

.calorie-deficit .hint {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--bg-color);
  border: 1px solid var(--border-color);
  font-size: 0.75rem;
  color: var(--muted-color);
  cursor: help;
}

.calorie-deficit .macro-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem;
}

.calorie-deficit .calculator-results {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.calorie-deficit .results-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.calorie-deficit .results-header h2 {
  margin: 0;
  font-size: 1.25rem;
}

.calorie-deficit .results-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
}

.calorie-deficit .result-card {
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 1.25rem;
  color: var(--text-color);
}

.calorie-deficit .result-card h3 {
  margin-top: 0;
  margin-bottom: 0.5rem;
  font-size: 1.05rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.calorie-deficit .result-card ul {
  margin: 0.75rem 0 0;
  padding-left: 1.1rem;
  color: var(--muted-color);
}

.calorie-deficit canvas {
  width: 100%;
  height: auto;
  border-radius: 12px;
  background: var(--bg-color);
}

.calorie-deficit .info-btn {
  border: 1px solid var(--border-color);
  background: #fff;
  color: var(--muted-color);
  width: 20px;
  height: 20px;
  border-radius: 50%;
  font-size: 0.75rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.calorie-deficit .info-btn::after {
  content: attr(data-tooltip);
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  bottom: calc(100% + 10px);
  background: #111827;
  color: #fff;
  font-size: 0.75rem;
  padding: 0.45rem 0.6rem;
  border-radius: 8px;
  width: 220px;
  text-align: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
  z-index: 5;
}

.calorie-deficit .info-btn.open::after,
.calorie-deficit .info-btn:hover::after {
  opacity: 1;
}

/* Calories burned calculator */
.calculator-widget.calories-burned {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.calories-burned .calculator-form {
  max-width: none;
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: 16px;
}

.calories-burned .form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
}

.calories-burned .form-field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.calories-burned .form-field label {
  display: block;
  font-weight: 600;
  margin: 0;
}

.calories-burned .form-field input,
.calories-burned .form-field select {
  width: 100%;
  padding: 0.55rem 0.75rem;
  border-radius: 10px;
  border: 1px solid var(--border-color);
  font-size: 0.95rem;
}

.calories-burned .actions {
  display: flex;
  gap: 0.75rem;
  margin-top: 1rem;
}

.calories-burned .calc-btn {
  background: var(--accent-color);
  color: #fff;
}

.calories-burned .field-error {
  color: #dc2626;
  font-size: 0.8rem;
  margin-top: 0.35rem;
}

.calories-burned .calculator-results {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 2rem;
}

.calories-burned .results-header h2 {
  margin: 0;
  font-size: 1.25rem;
}

.calories-burned .result-card {
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 1.25rem;
}

.calories-burned .result-card p {
  margin: 0.5rem 0;
  color: var(--text-color);
}

.calories-burned .result-card strong {
  color: var(--accent-color);
  font-size: 1.1rem;
}

.calories-burned .baseline-hint {
  margin-top: 1rem;
  padding: 0.75rem;
  background: #fef3c7;
  border-left: 3px solid #f59e0b;
  border-radius: 8px;
  color: #92400e;
  font-size: 0.9rem;
}

/* GPA calculator */
.gpa-calculator {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.gpa-calculator .calculator-header h2 {
  margin: 0;
}

.gpa-calculator .mode-toggle {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  font-weight: 600;
}

.gpa-calculator .mode-toggle label {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.gpa-calculator .settings-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
}

.gpa-calculator .form-field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.gpa-calculator .form-field small {
  color: var(--muted-color);
}

.gpa-calculator .course-table {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.gpa-calculator .table-header,
.gpa-calculator .course-row {
  display: grid;
  grid-template-columns: 1.5fr 1fr 0.8fr 0.3fr;
  gap: 0.75rem;
  align-items: center;
}

.gpa-calculator .table-header {
  font-weight: 600;
  color: var(--muted-color);
}

.gpa-calculator .course-row input,
.gpa-calculator .course-row select {
  width: 100%;
}

.gpa-calculator .remove-row {
  border: none;
  background: transparent;
  color: var(--muted-color);
  font-size: 1.1rem;
  cursor: pointer;
}

.gpa-calculator .cumulative-fields {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
}

.gpa-calculator .field-error {
  color: #dc3545;
  font-size: 0.85rem;
  min-height: 1rem;
}

.gpa-calculator .invalid {
  border-color: #dc3545;
}

.gpa-calculator .calculator-results {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.gpa-calculator .result-card {
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 1.25rem;
  color: var(--text-color);
}

.gpa-calculator .result-card p {
  margin: 0.45rem 0;
}

.gpa-calculator .result-card strong {
  color: var(--accent-color);
}

/* Semester grade calculator */
.semester-grade {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.semester-grade .calculator-header h2 {
  margin: 0;
}

.semester-grade .settings-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.semester-grade .toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
}

.semester-grade .table {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.semester-grade .table-header,
.semester-grade .table-row {
  display: grid;
  grid-template-columns: 1.5fr 0.8fr 0.9fr 0.6fr 0.3fr;
  gap: 0.75rem;
  align-items: center;
}

.semester-grade .table-header {
  font-weight: 600;
  color: var(--muted-color);
}

.semester-grade .table-row input[type="text"],
.semester-grade .table-row input[type="number"] {
  width: 100%;
}

.semester-grade .remaining-cell {
  display: flex;
  justify-content: center;
}

.semester-grade .remove-row {
  border: none;
  background: transparent;
  color: var(--muted-color);
  font-size: 1.1rem;
  cursor: pointer;
}

.semester-grade .target-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
}

.semester-grade .letter-settings {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.semester-grade .letter-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 0.75rem;
}

.semester-grade .form-field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.semester-grade .field-error {
  color: #dc3545;
  font-size: 0.85rem;
  min-height: 1rem;
}

.semester-grade .invalid {
  border-color: #dc3545;
}

.semester-grade .calculator-results {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.semester-grade .result-card {
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 1.25rem;
  color: var(--text-color);
}

.semester-grade .result-card strong {
  color: var(--accent-color);
}

.semester-grade .warning {
  margin-top: 0.75rem;
  color: #b45309;
  background: #fff7ed;
  padding: 0.6rem 0.75rem;
  border-radius: 8px;
}

.semester-grade .status-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  font-weight: 600;
  background: #e2e8f0;
  color: #334155;
  margin: 0.5rem 0;
}

.semester-grade .status-pill.good {
  background: #dcfce7;
  color: #166534;
}

.semester-grade .status-pill.warn {
  background: #fef3c7;
  color: #92400e;
}

.semester-grade .status-pill.bad {
  background: #fee2e2;
  color: #991b1b;
}

.semester-grade .result-pill {
  padding: 0.6rem 0.75rem;
  border-radius: 8px;
  background: #f8fafc;
  border: 1px solid var(--border-color);
  font-weight: 600;
  text-align: center;
}

/* Mortgage calculator */
.mortgage-calculator {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.mortgage-calculator .form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
}

.mortgage-calculator .form-field {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.mortgage-calculator .form-field label {
  font-weight: 600;
}

.mortgage-calculator .input-with-symbol {
  position: relative;
  display: flex;
  align-items: center;
}

.mortgage-calculator .input-with-symbol .symbol {
  position: absolute;
  left: 0.75rem;
  color: var(--muted-color);
  pointer-events: none;
}

.mortgage-calculator .input-with-symbol input {
  padding-left: 1.8rem;
  width: 100%;
}

.mortgage-calculator .input-group {
  display: flex;
  gap: 0.5rem;
}

.mortgage-calculator .input-group select {
  width: auto;
  min-width: 60px;
}

.mortgage-calculator .presets {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.35rem;
}

.mortgage-calculator .preset-btn {
  padding: 0.25rem 0.6rem;
  border: 1px solid var(--border-color);
  background: #fff;
  border-radius: 6px;
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.2s;
}

.mortgage-calculator .preset-btn:hover {
  border-color: var(--accent-color);
  color: var(--accent-color);
}

.mortgage-calculator .loan-amount-display {
  padding: 0.75rem;
  background: #f8fafc;
  border-radius: 10px;
  text-align: center;
  font-size: 1.05rem;
  border: 1px dashed var(--border-color);
}

.mortgage-calculator .advanced-section {
  border-top: 1px solid var(--border-color);
  padding-top: 1rem;
}

.mortgage-calculator .advanced-toggle {
  background: none;
  border: none;
  padding: 0;
  font: inherit;
  font-weight: 600;
  color: var(--accent-color);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.mortgage-calculator .advanced-content {
  margin-top: 1rem;
  padding: 1rem;
  background: #f8fafc;
  border-radius: 12px;
}

.mortgage-calculator .result-card {
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 1.5rem;
}

.mortgage-calculator .main-result {
  text-align: center;
  margin-bottom: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-color);
}

.mortgage-calculator .main-result .label {
  display: block;
  font-size: 1.1rem;
  color: var(--muted-color);
  margin-bottom: 0.5rem;
}

.mortgage-calculator .main-result strong {
  font-size: 2.25rem;
  color: var(--accent-color);
}

.mortgage-calculator .secondary-results {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1.5rem;
  text-align: center;
}

.mortgage-calculator .secondary-results p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--muted-color);
}

.mortgage-calculator .secondary-results strong {
  display: block;
  font-size: 1.2rem;
  color: var(--text-color);
  margin-top: 0.25rem;
}

.mortgage-calculator .breakdown-list {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.mortgage-calculator .breakdown-item {
  display: flex;
  justify-content: space-between;
  font-size: 0.95rem;
  padding: 0.4rem 0;
  border-bottom: 1px solid #f1f5f9;
}

.mortgage-calculator .breakdown-item span:first-child {
  color: var(--muted-color);
}

/* Loan calculator */
.loan-calculator {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.loan-calculator .form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
}

.loan-calculator .form-field {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.loan-calculator .form-field label {
  font-weight: 600;
}

.loan-calculator .input-with-symbol {
  position: relative;
  display: flex;
  align-items: center;
}

.loan-calculator .input-with-symbol .symbol {
  position: absolute;
  left: 0.75rem;
  color: var(--muted-color);
  pointer-events: none;
}

.loan-calculator .input-with-symbol input {
  padding-left: 1.8rem;
  width: 100%;
}

.loan-calculator .field-error {
  color: #dc2626;
  font-size: 0.8rem;
  margin-top: 0.2rem;
}

.loan-calculator .result-card {
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 1.5rem;
}

.loan-calculator .main-result {
  text-align: center;
  margin-bottom: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-color);
}

.loan-calculator .main-result .label {
  display: block;
  font-size: 1.1rem;
  color: var(--muted-color);
  margin-bottom: 0.5rem;
}

.loan-calculator .main-result strong {
  font-size: 2.25rem;
  color: var(--accent-color);
}

.loan-calculator .secondary-results {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  text-align: center;
}

.loan-calculator .secondary-results span {
  display: block;
  font-size: 0.95rem;
  color: var(--muted-color);
  margin-bottom: 0.25rem;
}

.loan-calculator .secondary-results strong {
  font-size: 1.2rem;
  color: var(--text-color);
}

/* Interest calculator */
.interest-calculator {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.interest-calculator .form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
}

.interest-calculator .form-field-group {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

.interest-calculator .form-field {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.interest-calculator .form-field label {
  font-weight: 600;
}

.interest-calculator .input-with-symbol {
  position: relative;
  display: flex;
  align-items: center;
}

.interest-calculator .input-with-symbol .symbol {
  position: absolute;
  left: 0.75rem;
  color: var(--muted-color);
  pointer-events: none;
}

.interest-calculator .input-with-symbol input {
  padding-left: 1.8rem;
  width: 100%;
}

.interest-calculator .field-error {
  color: #dc2626;
  font-size: 0.8rem;
  margin-top: 0.2rem;
}

.interest-calculator .result-card {
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.interest-calculator .result-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.5rem 0;
  border-bottom: 1px solid #f1f5f9;
}

.interest-calculator .result-item span {
  color: var(--muted-color);
  font-size: 0.95rem;
}

.interest-calculator .result-item strong {
  font-size: 1.15rem;
  color: var(--text-color);
}

.interest-calculator .result-item.total-result {
  border-bottom: none;
  margin-top: 0.5rem;
  padding-top: 1rem;
  border-top: 2px solid var(--border-color);
}

.interest-calculator .result-item.total-result strong {
  font-size: 1.5rem;
  color: var(--accent-color);
}

/* BMI calculator */
.bmi-calculator {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.bmi-calculator .unit-tabs {
  display: flex;
  gap: 0.5rem;
  background: #f1f5f9;
  padding: 0.35rem;
  border-radius: 12px;
  width: fit-content;
}

.bmi-calculator .tab-btn {
  padding: 0.5rem 1.25rem;
  border: none;
  background: none;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 600;
  color: var(--muted-color);
  transition: all 0.2s;
}

.bmi-calculator .tab-btn.active {
  background: #fff;
  color: var(--accent-color);
  box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.bmi-calculator .form-container {
  min-height: 120px;
}

.bmi-calculator .input-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.bmi-calculator .form-field-group {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

.bmi-calculator .form-field {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.bmi-calculator .form-field label {
  font-weight: 600;
  font-size: 0.95rem;
}

.bmi-calculator .result-card {
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 2rem;
  text-align: center;
}

.bmi-calculator .main-result {
  margin-bottom: 1.5rem;
}

.bmi-calculator .main-result .label {
  display: block;
  color: var(--muted-color);
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.bmi-calculator .main-result strong {
  font-size: 3rem;
  color: var(--text-color);
}

.bmi-calculator .category-display {
  margin-bottom: 2rem;
}

.bmi-calculator .status-text {
  display: block;
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.bmi-calculator .status-text.underweight { color: #3b82f6; }
.bmi-calculator .status-text.normal { color: #10b981; }
.bmi-calculator .status-text.overweight { color: #f59e0b; }
.bmi-calculator .status-text.obese { color: #ef4444; }

.bmi-calculator #range-info {
  color: var(--muted-color);
  font-size: 0.9rem;
}

.bmi-calculator .bmi-gauge {
  margin-top: 1rem;
  padding: 0 10px;
}

.bmi-calculator .gauge-bar {
  height: 12px;
  background: #f1f5f9;
  border-radius: 6px;
  display: flex;
  position: relative;
  overflow: visible;
  margin-bottom: 0.75rem;
}

.bmi-calculator .gauge-segment {
  height: 100%;
}

.bmi-calculator .gauge-segment.underweight { width: 18.5%; background: #3b82f6; border-radius: 6px 0 0 6px; opacity: 0.3; }
.bmi-calculator .gauge-segment.normal { width: 21.5%; background: #10b981; opacity: 0.3; }
.bmi-calculator .gauge-segment.overweight { width: 16.5%; background: #f59e0b; opacity: 0.3; }
.bmi-calculator .gauge-segment.obese { width: 43.5%; background: #ef4444; border-radius: 0 6px 6px 0; opacity: 0.3; }

.bmi-calculator .gauge-marker {
  position: absolute;
  top: -4px;
  width: 20px;
  height: 20px;
  background: var(--accent-color);
  border: 3px solid #fff;
  border-radius: 50%;
  box-shadow: 0 2px 4px rgba(0,0,0,0.2);
  transform: translateX(-50%);
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  z-index: 2;
}

.bmi-calculator .gauge-labels {
  display: flex;
  justify-content: space-between;
  padding: 0 5%;
  font-size: 0.75rem;
  color: var(--muted-color);
  position: relative;
}

.bmi-calculator .gauge-labels span {
  position: absolute;
  transform: translateX(-50%);
}

.bmi-calculator .gauge-labels span:nth-child(1) { left: 28%; }
.bmi-calculator .gauge-labels span:nth-child(2) { left: 50%; }
.bmi-calculator .gauge-labels span:nth-child(3) { left: 66.5%; }

.bmi-calculator .error-msg {
  color: #ef4444;
  margin-top: 1.5rem;
  font-size: 0.9rem;
}

/* Percentage calculator */
.percentage-calculator {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.percentage-calculator .mode-tabs {
  display: flex;
  gap: 0.5rem;
  background: #f1f5f9;
  padding: 0.35rem;
  border-radius: 12px;
  overflow-x: auto;
  scrollbar-width: none;
}

.percentage-calculator .mode-tabs::-webkit-scrollbar {
  display: none;
}

.percentage-calculator .tab-btn {
  padding: 0.6rem 1rem;
  border: none;
  background: none;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 600;
  color: var(--muted-color);
  transition: all 0.2s;
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.percentage-calculator .tab-btn.active {
  background: #fff;
  color: var(--accent-color);
  box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.percentage-calculator .help-icon {
  width: 16px;
  height: 16px;
  background: var(--border-color);
  color: var(--muted-color);
  border-radius: 50%;
  font-size: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: help;
}

.percentage-calculator .form-container {
  min-height: 80px;
}

.percentage-calculator .mode-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.percentage-calculator .form-field {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.percentage-calculator .form-field label {
  font-weight: 600;
  font-size: 0.95rem;
}

.percentage-calculator .field-error {
  grid-column: 1 / -1;
  color: #ef4444;
  font-size: 0.85rem;
}

.percentage-calculator .result-card {
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 1.75rem;
  text-align: center;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
}

.percentage-calculator .main-result strong {
  font-size: 2.75rem;
  color: var(--accent-color);
  display: block;
  margin-bottom: 0.75rem;
}

.percentage-calculator .result-phrase {
  font-size: 1.1rem;
  color: var(--muted-color);
  margin: 0;
  padding: 0.75rem;
  background: #f8fafc;
  border-radius: 12px;
  display: inline-block;
}

@media (max-width: 600px) {
  .percentage-calculator .mode-section {
    grid-template-columns: 1fr;
  }
}

/* Day counter */
.day-counter {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.day-counter .input-card {
  padding: 1.5rem;
  background: #fff;
  border-radius: 20px;
  box-shadow: 0 15px 35px rgba(15, 23, 42, 0.08);
}

.day-counter .form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
}

.day-counter .form-field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.day-counter label {
  font-weight: 600;
  font-size: 0.95rem;
}

.day-counter input[type="date"] {
  padding: 0.65rem 0.75rem;
  border-radius: 12px;
  border: 1px solid var(--border-color);
  font-size: 1rem;
}

.day-counter .checkbox-group {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: 0.75rem;
}

.day-counter .checkbox-group label {
  font-weight: 500;
  font-size: 0.9rem;
  cursor: pointer;
}

.day-counter .holidays-section {
  margin-top: 1rem;
  border-top: 1px solid #e2e8f0;
  padding-top: 1rem;
}

.day-counter .holiday-input {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.day-counter .holiday-input input {
  flex: 1;
  border-radius: 10px;
  border: 1px solid var(--border-color);
  padding: 0.5rem;
}

.day-counter .holiday-input button {
  border: none;
  background: var(--accent-color);
  color: #fff;
  padding: 0 0.9rem;
  border-radius: 10px;
  cursor: pointer;
}

.day-counter .holiday-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.75rem;
}

.day-counter .holiday-tag {
  background: #f3f4f6;
  padding: 0.3rem 0.6rem;
  border-radius: 999px;
  font-size: 0.85rem;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.day-counter .holiday-tag button {
  border: none;
  background: none;
  cursor: pointer;
  color: #ef4444;
}

.day-counter .helper-text {
  color: var(--muted-color);
  font-size: 0.85rem;
}

.day-counter .result-card {
  background: #fff;
  padding: 1.5rem;
  border-radius: 22px;
  box-shadow: 0 20px 45px rgba(15, 23, 42, 0.1);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.day-counter .result-row {
  display: flex;
  justify-content: space-between;
  font-size: 1.05rem;
  border-bottom: 1px solid #f1f5f9;
  padding-bottom: 0.35rem;
}

.day-counter .result-row:last-child {
  border-bottom: none;
}

.day-counter .result-row strong {
  font-weight: 700;
  color: #1f2937;
}

.day-counter .field-error {
  color: #ef4444;
  font-size: 0.8rem;
  min-height: 1rem;
}

@media (max-width: 720px) {
  .day-counter .checkbox-group {
    flex-direction: column;
  }
  .day-counter .holiday-input {
    flex-direction: column;
  }
  .day-counter .result-row {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* Percentage calculator */
.percentage-calculator {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.percentage-calculator .mode-tabs {
  display: flex;
  gap: 0.5rem;
  background: #f1f5f9;
  padding: 0.35rem;
  border-radius: 12px;
  width: 100%;
  overflow-x: auto;
}

.percentage-calculator .tab-btn {
  flex: 1;
  padding: 0.6rem 0.5rem;
  border: none;
  background: none;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 600;
  color: var(--muted-color);
  transition: all 0.2s;
  white-space: nowrap;
  font-size: 0.9rem;
}

.percentage-calculator .tab-btn.active {
  background: #fff;
  color: var(--accent-color);
  box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.percentage-calculator .form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.25rem;
}

.percentage-calculator .form-field {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.percentage-calculator .form-field label {
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.percentage-calculator .info-icon {
  display: inline-flex;
  width: 16px;
  height: 16px;
  background: #e2e8f0;
  color: var(--muted-color);
  border-radius: 50%;
  font-size: 0.7rem;
  align-items: center;
  justify-content: center;
  cursor: help;
}

.percentage-calculator .result-card {
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 2rem;
  text-align: center;
}

.percentage-calculator .main-result {
  margin-bottom: 1rem;
}

.percentage-calculator .main-result strong {
  font-size: 3rem;
  color: var(--accent-color);
}

.percentage-calculator .result-phrase {
  font-size: 1.15rem;
  color: var(--text-color);
}

.percentage-calculator .field-error {
  color: #ef4444;
  font-size: 0.8rem;
  margin-top: 0.2rem;
}

@media (max-width: 600px) {
  .percentage-calculator .mode-tabs {
    flex-wrap: nowrap;
  }
}

/* Percentage calculator */
.percentage-calculator {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.percentage-calculator .mode-tabs {
  display: flex;
  gap: 0.5rem;
  background: #f1f5f9;
  padding: 0.35rem;
  border-radius: 12px;
  flex-wrap: wrap;
}

.percentage-calculator .tab-btn {
  padding: 0.5rem 1rem;
  border: none;
  background: none;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 600;
  color: var(--muted-color);
  transition: all 0.2s;
  font-size: 0.9rem;
}

.percentage-calculator .tab-btn.active {
  background: #fff;
  color: var(--accent-color);
  box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.percentage-calculator .form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.25rem;
}

.percentage-calculator .form-field {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.percentage-calculator .form-field label {
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.percentage-calculator .result-card {
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 1.5rem;
  text-align: center;
}

.percentage-calculator .main-result strong {
  font-size: 2.5rem;
  color: var(--accent-color);
}

.percentage-calculator .result-phrase {
  margin-top: 1rem;
  color: var(--muted-color);
  font-size: 1.1rem;
}

.percentage-calculator .info-btn {
  display: inline-flex;
  width: 18px;
  height: 18px;
  background: #e2e8f0;
  color: #64748b;
  border-radius: 50%;
  font-size: 0.75rem;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  position: relative;
}

.percentage-calculator .info-btn:hover::after,
.percentage-calculator .info-btn.open::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: calc(100% + 10px);
  left: 50%;
  transform: translateX(-50%);
  background: #1e293b;
  color: #fff;
  padding: 0.5rem 0.75rem;
  border-radius: 6px;
  font-size: 0.8rem;
  width: 200px;
  text-align: center;
  z-index: 10;
}

@media (max-width: 600px) {
  .bmi-calculator .input-row {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 600px) {
  .loan-calculator .secondary-results {
    grid-template-columns: 1fr;
  }
}

.mortgage-calculator .field-error {
  color: #dc2626;
  font-size: 0.8rem;
  margin-top: 0.2rem;
}

@media (max-width: 600px) {
  .mortgage-calculator .secondary-results {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .semester-grade .table-header {
    display: none;
  }

  .semester-grade .table-row {
    grid-template-columns: 1fr;
    gap: 0.5rem;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 12px;
  }

  .semester-grade .remaining-cell {
    justify-content: flex-start;
  }

  .semester-grade .remove-row {
    justify-self: flex-end;
  }
}
@media (max-width: 720px) {
  .gpa-calculator .table-header {
    display: none;
  }

  .gpa-calculator .course-row {
    grid-template-columns: 1fr;
    gap: 0.5rem;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 12px;
  }

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

.calories-burned .baseline-hint {
  margin-top: 0.75rem;
  color: var(--muted-color);
  font-size: 0.9rem;
}