:root {
  --background-color: #F2F7FA;
  --text-color: #333333;
  --card-background: #FFFFFF;
  --primary-blue: #0073e6;
  --primary-blue-dark: #005bb5;
  --primary-blue-light: #e6f1ff;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-900: #111827;
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
}

.pushup-calculator-container {
  color: var(--text-color);
  font-family: var(--font-family);
  max-width: 1290px;
  margin: 0 auto;
}

.calculator-layout {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

@media (min-width: 768px) {
  .calculator-layout {
    flex-direction: row;
  }
  .pushup-calculator-container {
     padding: 0;
  }
}

.form-column {
  flex: 1 1 40%;
}

.results-column {
  flex: 1 1 60%;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.card {
  background-color: var(--card-background);
  padding: 1.5rem;
  border-radius: 1rem;
  box-shadow: var(--shadow-lg);
}

.form-section {
  margin-bottom: 1.5rem;
}
.form-section:last-child {
  margin-bottom: 0;
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--gray-700);
  margin-bottom: 0.75rem;
}

.input-wrapper {
  position: relative;
}

.weight-input {
  width: 100%;
  background-color: var(--card-background);
  border: 1px solid var(--gray-300);
  border-radius: 0.5rem;
  padding: 0.75rem 1rem;
  color: var(--gray-900);
  transition: border-color 0.2s, box-shadow 0.2s;
}
.weight-input::placeholder {
  color: var(--gray-400);
}
.weight-input:focus {
  outline: none;
  border-color: var(--primary-blue);
  box-shadow: 0 0 0 2px var(--primary-blue-light);
}
.weight-input[type="number"] {
    -moz-appearance: textfield;
}
.weight-input::-webkit-outer-spin-button,
.weight-input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}


.unit-toggle {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  display: flex;
  align-items: center;
  padding-right: 0.375rem;
}

.unit-toggle-inner {
  background-color: var(--gray-200);
  border-radius: 0.375rem;
  padding: 0.25rem;
  display: flex;
}

.unit-button {
  border: none;
  padding: 0.25rem 0.75rem;
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: 0.375rem;
  cursor: pointer;
  transition: background-color 0.2s, color 0.2s;
  background-color: transparent;
  color: var(--gray-600);
}
.unit-button:hover {
  background-color: var(--gray-300);
}
.unit-button.selected {
  background-color: var(--primary-blue);
  color: white;
}
.unit-button.selected:hover {
  background-color: var(--primary-blue-dark);
}

.pushup-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
}
@media (min-width: 640px) {
  .pushup-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.pushup-type-label {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 0.75rem;
  border-radius: 0.5rem;
  cursor: pointer;
  transition: all 0.2s;
  border: 2px solid transparent;
  background-color: var(--gray-100);
  height: 100%;
}
.pushup-type-label:hover {
  background-color: var(--gray-200);
}
.pushup-type-label.selected {
  background-color: var(--primary-blue-light);
  border-color: var(--primary-blue);
}

.pushup-type-label input[type="radio"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}
.pushup-type-label .icon {
  width: 2.5rem;
  height: 2.5rem;
  margin-bottom: 0.5rem;
  color: var(--gray-500);
}
.pushup-type-label.selected .icon {
  color: var(--primary-blue);
}
.pushup-type-label .pushup-name {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--gray-700);
}
.pushup-type-label.selected .pushup-name {
  color: var(--primary-blue-dark);
}

.description-box {
  margin-top: 1rem;
  padding: 1rem;
  background-color: var(--gray-100);
  border-radius: 0.5rem;
  min-height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s;
}
.description-text {
  font-size: 0.875rem;
  color: var(--gray-600);
  text-align: center;
}

.results-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  height: 100%;
}

.results-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.results-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--gray-900);
}
.results-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.action-button {
  padding: 0.5rem 1rem;
  border-radius: 0.5rem;
  color: var(--gray-600);
  background-color: transparent;
  border: 1px solid var(--gray-300);
  cursor: pointer;
  transition: background-color 0.2s, color 0.2s, border-color 0.2s;
  font-weight: 500;
  font-size: 0.875rem;
}
.action-button:hover {
  background-color: var(--gray-200);
  color: var(--gray-900);
  border-color: var(--gray-400);
}

.results-body {
  text-align: center;
  margin: 1.5rem 0;
}
.results-subtitle {
  color: var(--gray-500);
  font-size: 0.875rem;
}
.results-value, .results-value-placeholder {
  font-size: 3rem;
  line-height: 1;
  font-weight: 800;
  margin-top: 0.5rem;
}
@media (min-width: 1024px) {
    .results-value, .results-value-placeholder {
        font-size: 3.75rem;
    }
}
.results-value {
  color: var(--primary-blue);
}
.results-value-placeholder {
  color: var(--gray-400);
}
.results-unit {
  font-size: 1.875rem;
  font-weight: 600;
  color: var(--gray-500);
}
@media (min-width: 1024px) {
    .results-unit {
        font-size: 2.25rem;
    }
}
.results-disclaimer {
  text-align: center;
  font-size: 0.75rem;
  color: var(--gray-500);
  margin-top: auto;
}

.chart-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--gray-900);
  margin-bottom: 1rem;
}

.chart-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 12rem;
  background-color: var(--gray-100);
  border-radius: 0.5rem;
}
.chart-placeholder p {
  color: var(--gray-500);
}

.chart-bars-container {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.chart-bar-item {
  display: flex;
  align-items: center;
  gap: 1rem;
}
.chart-bar-label {
  width: 25%;
  font-size: 0.875rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--gray-600);
  font-weight: 500;
}
.chart-bar-label.selected {
  font-weight: 700;
  color: var(--gray-900);
}

.chart-bar-wrapper {
  width: 75%;
  display: flex;
  align-items: center;
}
.chart-bar-background {
  width: 100%;
  background-color: var(--gray-200);
  border-radius: 9999px;
  height: 1.5rem;
}
.chart-bar-foreground {
  height: 1.5rem;
  border-radius: 9999px;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding: 0 0.5rem;
  transition: width 0.5s ease-out;
  background-color: var(--primary-blue);
  opacity: 0.8;
}
.chart-bar-item:hover .chart-bar-foreground {
  opacity: 1;
}
.chart-bar-item.selected .chart-bar-foreground {
  background-color: var(--primary-blue);
  opacity: 1;
}

.chart-bar-percentage {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--primary-blue-light);
  opacity: 0;
  transition: opacity 0.2s;
  white-space: nowrap;
}
.chart-bar-item:hover .chart-bar-percentage {
  opacity: 1;
}

.chart-bar-value {
  margin-left: 0.75rem;
  font-size: 1rem;
  width: 6rem;
  text-align: right;
  color: var(--gray-700);
  font-weight: 600;
}
.chart-bar-value.selected {
  font-weight: 700;
  color: var(--gray-900);
}

@keyframes fadeInScaleUp {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}
.animate-result {
  animation: fadeInScaleUp 0.4s ease-out forwards;
}

/* Print Styles */
@media print {
  body {
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
  }
  .no-print {
    display: none !important;
  }
  .print-only {
    display: block !important;
  }
  .pushup-calculator-container {
      box-shadow: none !important;
      border: none !important;
      padding: 0 !important;
      margin: 0 !important;
      background-color: white !important;
      color: black !important;
  }
  .print-container {
      box-shadow: none !important;
      border: none !important;
      padding: 0 !important;
      margin: 0 !important;
      background-color: white !important;
  }
  .print-text-black {
      color: black !important;
  }
  .chart-bar-background {
    background-color: #e5e7eb !important;
  }
  .chart-bar-foreground {
    background-color: #0073e6 !important;
  }
}