:root {
  --primary-bg: #f5f4ed;
  --secondary-bg: #ffc62f;
  --accent-color: #fdbe5f;
  --dark-accent: #ff9800;
  --text-dark: #333333;
  --text-medium: #555555;
  --text-light: #666666;
  --card-bg: #ffffff;
  --border-color: #e0e0e0;
  --success-green: #4caf50;
  --warning-orange: #ff9800;
  --danger-red: #f44336;
  --fluid-min-width: 320px;
  --fluid-max-width: 1400px;
  --fluid-min-font: 14px;
  --fluid-max-font: 18px;
  --fluid-min-heading: 1.25rem;
  --fluid-max-heading: 2.5rem;
  --fluid-min-spacing: 1rem;
  --fluid-max-spacing: 2rem;
  --border-radius: 15px;
  --box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
  --transition: all 0.3s ease;
}

html {
  font-size: clamp(var(--fluid-min-font), 1.5vw, var(--fluid-max-font));
  -webkit-text-size-adjust: 100%;
}

.tools-parent-container {
  background-color: var(--primary-bg);
  color: var(--text-dark);
  line-height: 1.6;
  min-height: 100vh;
  flex-direction: column;
  overflow-x: hidden;
}

.tools-parent-container .container {
  width: min(100% - 2rem, var(--fluid-max-width));
  margin: 0 auto;
  padding: clamp(0.5rem, 2vw, 1rem);
}
.tools-parent-container header {
  background: linear-gradient(135deg, var(--secondary-bg) 0%, #ffb300 100%);
  color: var(--text-dark);
  padding: clamp(1rem, 3vw, 1.5rem) 0;
  border-radius: 0 0 var(--border-radius) var(--border-radius);
  margin-bottom: clamp(1rem, 3vw, 1.875rem);
  box-shadow: var(--box-shadow);
  position: relative;
  overflow: hidden;
}
.tools-parent-container header::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, #ffd95b, var(--secondary-bg), #ffb300);
  z-index: 1;
}
.tools-parent-container .header-content {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 3vw, 1.5rem);
  flex-wrap: wrap;
  position: relative;
  z-index: 2;
  justify-content: center;
  flex-direction: column;
  text-align: center;
  width: 100%;
}
.tools-parent-container .doctor-icon {
  font-size: clamp(2rem, 5vw, 3.5rem);
  background-color: rgba(255, 255, 255, 0.3);
  padding: clamp(0.75rem, 2vw, 1.25rem);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  backdrop-filter: blur(10px);
  border: 2px solid rgba(255, 255, 255, 0.5);
  color: var(--text-dark);
}
.tools-parent-container .header-text h1 {
  font-size: clamp(1.5rem, 4vw, 2.2rem);
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  line-height: 1.3;
  color: var(--text-dark);
  justify-content: center;
  flex-direction: column;
  text-align: center;
  width: 100%;
}
.tools-parent-container .subtitle {
  font-size: clamp(0.875rem, 2vw, 1.1rem);
  color: var(--text-medium);
  margin-bottom: 0.25rem;
}
.tools-parent-container .who-notice {
  background-color: rgba(255, 255, 255, 0.3);
  padding: clamp(0.375rem, 1vw, 0.5rem) clamp(0.75rem, 2vw, 1rem);
  border-radius: 100px;
  display: inline-block;
  font-size: clamp(0.75rem, 1.5vw, 0.9rem);
  margin-top: 0.5rem;
  backdrop-filter: blur(5px);
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: var(--text-dark);
}
.tools-parent-container .tool-container {
  display: flex;
  flex-direction: column;
  gap: clamp(1.25rem, 3vw, 1.875rem);
  margin-bottom: clamp(1.5rem, 4vw, 2.5rem);
}
@container (min-width: 768px) {
  .tools-parent-container .tool-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-areas: "input results" "chart chart";
    gap: clamp(1.25rem, 3vw, 1.875rem);
  }
  .tools-parent-container .input-section {
    grid-area: input;
  }
  .tools-parent-container .results-section {
    grid-area: results;
  }
  .tools-parent-container .chart-section {
    grid-area: chart;
  }
}
.tools-parent-container .input-section,
.tools-parent-container .results-section,
.tools-parent-container .chart-section {
  background-color: var(--card-bg);
  border-radius: var(--border-radius);
  padding: clamp(1rem, 3vw, 1.5rem);
  box-shadow: var(--box-shadow);
  border: 1px solid var(--border-color);
}
.tools-parent-container h2 {
  color: var(--dark-accent);
  margin-bottom: clamp(1rem, 2.5vw, 1.5rem);
  font-size: clamp(1.25rem, 3vw, 1.6rem);
  display: flex;
  align-items: center;
  gap: 0.625rem;
  position: relative;
  padding-bottom: 0.5rem;
}
.tools-parent-container h2::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 3rem;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-color), transparent);
  border-radius: 3px;
}
.tools-parent-container .input-group {
  display: flex;
  flex-direction: column;
  gap: clamp(1rem, 2.5vw, 1.5rem);
}
.tools-parent-container .input-row {
  display: flex;
  gap: clamp(1rem, 2.5vw, 1.5rem);
  flex-wrap: wrap;
}
.tools-parent-container .input-field {
  flex: 1;
  min-width: min(100%, 250px);
}
.tools-parent-container .input-field label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: var(--dark-accent);
  font-size: clamp(0.95rem, 2vw, 1.1rem);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.tools-parent-container .gender-buttons {
  display: flex;
  gap: clamp(0.75rem, 2vw, 1rem);
}
.tools-parent-container .gender-btn {
  flex: 1;
  padding: clamp(0.75rem, 2vw, 1rem);
  border: 2px solid var(--border-color);
  background-color: #f9f9f9;
  border-radius: 10px;
  font-size: clamp(0.95rem, 2vw, 1.1rem);
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 54px;
  color: var(--text-dark);
}
.tools-parent-container .gender-btn.active {
  background: linear-gradient(135deg, var(--accent-color), var(--dark-accent));
  color: white;
  border-color: var(--accent-color);
  box-shadow: 0 4px 12px rgba(74, 144, 226, 0.3);
}
.tools-parent-container .gender-btn:hover:not(.active) {
  border-color: var(--accent-color);
  background-color: rgba(74, 144, 226, 0.1);
  transform: translateY(-2px);
}
.tools-parent-container .age-inputs {
  display: flex;
  align-items: center;
  gap: clamp(0.5rem, 1.5vw, 1rem);
  flex-wrap: wrap;
}
.tools-parent-container .age-inputs > div {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.tools-parent-container .age-inputs input {
  width: clamp(80px, 15vw, 100px);
  padding: clamp(0.75rem, 2vw, 1rem);
  border: 2px solid var(--border-color);
  border-radius: 10px;
  font-size: clamp(0.95rem, 2vw, 1.1rem);
  text-align: center;
  transition: var(--transition);
  background-color: #f9f9f9;
}
.tools-parent-container .age-inputs input:focus {
  outline: none;
  border-color: var(--accent-color);
  box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.1);
  background-color: white;
}
.tools-parent-container .age-inputs span {
  font-weight: 600;
  color: var(--text-medium);
  white-space: nowrap;
}
.tools-parent-container .age-separator {
  color: var(--text-light);
  font-weight: 500;
}
.tools-parent-container .measurement-input {
  display: flex;
  gap: 0.5rem;
}
.tools-parent-container .measurement-input input {
  flex: 1;
  padding: clamp(0.75rem, 2vw, 1rem);
  border: 2px solid var(--border-color);
  border-radius: 10px;
  font-size: clamp(0.95rem, 2vw, 1.1rem);
  transition: var(--transition);
  background-color: #f9f9f9;
}
.tools-parent-container .measurement-input input:focus {
  outline: none;
  border-color: var(--accent-color);
  box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.1);
  background-color: white;
}
.tools-parent-container .unit-selector select {
  width: 100%;
  padding: clamp(0.75rem, 2vw, 1rem);
  border: 2px solid var(--border-color);
  border-radius: 10px;
  font-size: clamp(0.95rem, 2vw, 1.1rem);
  background-color: white;
  color: var(--text-dark);
  min-width: clamp(80px, 15vw, 100px);
  cursor: pointer;
  transition: var(--transition);
}
.tools-parent-container .unit-selector select:focus {
  outline: none;
  border-color: var(--accent-color);
  box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.1);
}
.tools-parent-container .input-hint {
  font-size: clamp(0.75rem, 1.5vw, 0.85rem);
  color: var(--text-light);
  margin-top: 0.25rem;
  font-style: italic;
}
.tools-parent-container .calculate-btn,
.tools-parent-container .reset-btn {
  width: 100%;
  padding: clamp(0.875rem, 2vw, 1.125rem);
  border: none;
  border-radius: 10px;
  font-size: clamp(1rem, 2.5vw, 1.2rem);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  margin-top: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.625rem;
  min-height: 56px;
}
.tools-parent-container .calculate-btn {
  background: linear-gradient(135deg, var(--secondary-bg), #ffb300);
  color: var(--text-dark);
  position: relative;
  overflow: hidden;
}
.tools-parent-container .calculate-btn:hover {
  background: linear-gradient(135deg, #ffb300, var(--secondary-bg));
  transform: translateY(-3px);
  box-shadow: 0 5px 15px rgba(255, 198, 47, 0.3);
}
.tools-parent-container .calculate-btn:active {
  transform: translateY(-1px);
}
.tools-parent-container .reset-btn {
  background-color: #f5f5f5;
  color: var(--text-light);
  border: 2px solid #ddd;
}
.tools-parent-container .reset-btn:hover {
  background-color: #e0e0e0;
  color: var(--text-dark);
  transform: translateY(-2px);
}
.tools-parent-container .disclaimer {
  background-color: rgba(255, 198, 47, 0.1);
  padding: clamp(1rem, 2.5vw, 1.25rem);
  border-radius: 10px;
  margin-top: 1rem;
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
  border-left: 4px solid var(--secondary-bg);
}
.tools-parent-container .disclaimer i {
  color: var(--secondary-bg);
  font-size: clamp(1.25rem, 2.5vw, 1.5rem);
  flex-shrink: 0;
}
.tools-parent-container .disclaimer p {
  font-size: clamp(0.85rem, 2vw, 1rem);
  line-height: 1.5;
  color: var(--text-medium);
}
.tools-parent-container .percentile-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr));
  gap: clamp(1rem, 2.5vw, 1.5rem);
  margin-bottom: clamp(1.25rem, 3vw, 1.875rem);
}
.tools-parent-container .percentile-card {
  background-color: white;
  border-radius: var(--border-radius);
  padding: clamp(1rem, 2.5vw, 1.5rem);
  border: 2px solid var(--border-color);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.05);
}
.tools-parent-container .percentile-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--success-green), #8bc34a);
}
.tools-parent-container .percentile-card.length-card::before {
  background: linear-gradient(90deg, var(--accent-color), #03a9f4);
}
.tools-parent-container .percentile-card.hc-card::before {
  background: linear-gradient(90deg, #9c27b0, #e91e63);
}
.tools-parent-container .percentile-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}
.tools-parent-container .card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: clamp(0.75rem, 2vw, 1.25rem);
  flex-wrap: wrap;
  gap: 0.5rem;
}
.tools-parent-container .card-header h3 {
  font-size: clamp(1rem, 2.5vw, 1.3rem);
  color: var(--dark-accent);
  display: flex;
  align-items: center;
  gap: 0.625rem;
}
.tools-parent-container .percentile-value {
  font-size: clamp(1.5rem, 4vw, 2.2rem);
  font-weight: 700;
  color: var(--dark-accent);
  line-height: 1;
}
.tools-parent-container .card-body .measurement {
  font-size: clamp(0.95rem, 2vw, 1.1rem);
  color: var(--text-medium);
  margin-bottom: clamp(0.75rem, 2vw, 1rem);
  font-weight: 500;
}
.tools-parent-container .percentile-bar {
  height: clamp(16px, 3vw, 20px);
  background-color: #e0e0e0;
  border-radius: 10px;
  overflow: hidden;
  margin-bottom: 0.5rem;
  position: relative;
}
.tools-parent-container .percentile-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--success-green), #8bc34a);
  border-radius: 10px;
  width: 0%;
  transition: width 1s cubic-bezier(0.34, 1.56, 0.64, 1);
  position: relative;
  overflow: hidden;
}
.tools-parent-container .percentile-label {
  text-align: center;
  font-weight: 600;
  color: var(--text-dark);
  font-size: clamp(0.85rem, 2vw, 1rem);
  margin-top: 0.25rem;
}
.tools-parent-container .interpretation {
  background-color: #f9f9f9;
  border-radius: var(--border-radius);
  padding: clamp(1rem, 2.5vw, 1.5rem);
  border-left: 5px solid var(--accent-color);
}
.tools-parent-container .interpretation-text {
  margin-bottom: clamp(1.25rem, 3vw, 1.5rem);
  font-size: clamp(0.9rem, 2vw, 1.05rem);
  line-height: 1.7;
  color: var(--text-medium);
}
.tools-parent-container .interpretation-text p {
  margin-bottom: 0.75rem;
}
.tools-parent-container .interpretation-text ul {
  padding-left: 1.25rem;
  margin: 0.75rem 0;
}
.tools-parent-container .interpretation-text li {
  margin-bottom: 0.5rem;
}
.tools-parent-container .growth-status {
  display: flex;
  gap: clamp(1rem, 2.5vw, 1.25rem);
  align-items: center;
  background-color: white;
  padding: clamp(1rem, 2.5vw, 1.25rem);
  border-radius: 10px;
  border: 2px solid var(--border-color);
  flex-wrap: wrap;
}
.tools-parent-container .status-icon {
  font-size: clamp(2rem, 5vw, 3rem);
  color: var(--accent-color);
  flex-shrink: 0;
}
.tools-parent-container .status-text {
  flex: 1;
  min-width: 200px;
}
.tools-parent-container .status-text h4 {
  color: var(--dark-accent);
  margin-bottom: 0.5rem;
  font-size: clamp(1.1rem, 2.5vw, 1.3rem);
}
.tools-parent-container .status-text p {
  font-size: clamp(0.9rem, 2vw, 1rem);
  line-height: 1.5;
  color: var(--text-medium);
}
.tools-parent-container .chart-container {
  height: clamp(300px, 60vh, 500px);
  margin-bottom: clamp(1rem, 2.5vw, 1.5rem);
  position: relative;
}
.tools-parent-container .chart-controls {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(1rem, 2.5vw, 1.5rem);
  justify-content: space-between;
  align-items: center;
  background-color: #f9f9f9;
  padding: clamp(1rem, 2.5vw, 1.25rem);
  border-radius: 10px;
}
.tools-parent-container .chart-type,
.tools-parent-container .percentile-lines {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(0.5rem, 1.5vw, 0.75rem);
  align-items: center;
}
.tools-parent-container .chart-type span,
.tools-parent-container .percentile-lines span {
  font-weight: 600;
  color: var(--dark-accent);
  font-size: clamp(0.9rem, 2vw, 1rem);
  white-space: nowrap;
}
.tools-parent-container .chart-btn {
  padding: clamp(0.5rem, 1.5vw, 0.625rem) clamp(1rem, 2vw, 1.25rem);
  border: 2px solid var(--border-color);
  background-color: white;
  border-radius: 8px;
  cursor: pointer;
  transition: var(--transition);
  font-size: clamp(0.85rem, 2vw, 0.95rem);
  white-space: nowrap;
  color: var(--text-dark);
}
.tools-parent-container .chart-btn.active {
  background-color: var(--accent-color);
  color: white;
  border-color: var(--accent-color);
}
.tools-parent-container .chart-btn:hover:not(.active) {
  border-color: var(--accent-color);
  background-color: rgba(74, 144, 226, 0.1);
}
.tools-parent-container .percentile-lines label {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  cursor: pointer;
  font-size: clamp(0.85rem, 2vw, 0.95rem);
  white-space: nowrap;
  color: var(--text-medium);
}
.tools-parent-container .percentile-lines input[type=checkbox] {
  width: clamp(16px, 3vw, 18px);
  height: clamp(16px, 3vw, 18px);
  cursor: pointer;
  accent-color: var(--accent-color);
}
.tools-parent-container footer {
  background: linear-gradient(135deg, var(--dark-accent), #f5b404);
  color: rgb(19, 18, 18);
  padding: var(--fs-12-24);
  border-radius: var(--border-radius) var(--border-radius) 0 0;
  margin-top: auto;
  position: relative;
}
.tools-parent-container footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, #f7c641, var(--accent-color), #fdbb06);
}
.tools-parent-container .footer-content {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(1.5rem, 4vw, 2.5rem);
  margin-bottom: clamp(1.5rem, 4vw, 2rem);
  border-radius: var(--border-radius);
}
.tools-parent-container .footer-content h3 {
  font-size: clamp(1.1rem, 2.5vw, 1.4rem);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.625rem;
}
.tools-parent-container .footer-content p {
  margin-bottom: 0.75rem;
  line-height: 1.7;
  opacity: 0.9;
  font-size: clamp(0.9rem, 2vw, 1rem);
}
.tools-parent-container .copyright {
  text-align: center;
  padding-top: clamp(1rem, 3vw, 1.25rem);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: clamp(0.8rem, 1.5vw, 0.9rem);
  opacity: 0.8;
}
@media (max-width: 767px) {
  .tools-parent-container .header-content {
    justify-content: center;
    text-align: center;
  }
  .tools-parent-container .doctor-icon {
    margin: 0 auto;
  }
  .tools-parent-container .header-text h1 {
    justify-content: center;
  }
  .tools-parent-container .input-field {
    min-width: 100%;
  }
  .tools-parent-container .measurement-input {
    flex-direction: column;
  }
  .tools-parent-container .unit-selector select {
    width: 100%;
    min-width: 100%;
  }
  .tools-parent-container .chart-controls {
    flex-direction: column;
    align-items: flex-start;
  }
  .tools-parent-container .growth-status {
    text-align: center;
    justify-content: center;
  }
  .tools-parent-container .status-text {
    text-align: center;
  }
  .tools-parent-container .chart-container {
    height: 60vh;
  }
}
@media (min-width: 768px) and (max-width: 1024px) {
  .tools-parent-container .percentile-cards {
    grid-template-columns: repeat(2, 1fr);
  }
  .tools-parent-container .percentile-card:nth-child(3) {
    grid-column: span 2;
    max-width: 50%;
    justify-self: center;
  }
  .tools-parent-container .chart-controls {
    flex-direction: column;
    align-items: stretch;
  }
  .tools-parent-container .chart-type,
  .tools-parent-container .percentile-lines {
    justify-content: center;
  }
}
@media (min-width: 1025px) {
  .tools-parent-container .container {
    width: min(95%, var(--fluid-max-width));
  }
  .tools-parent-container .percentile-cards {
    grid-template-columns: repeat(3, 1fr);
  }
}
/* @media (prefers-color-scheme: dark) {
  .tools-parent-container :root {
    --primary-bg: #1a1a1a;
    --text-dark: #e3e3e3;
    --text-medium: #b0b0b0;
    --text-light: #8a8a8a;
    --card-bg: #2d2d2d;
    --border-color: #404040;
  }
  .tools-parent-container body {
    background-color: var(--primary-bg);
    color: var(--text-dark);
  }
  .tools-parent-container .input-section,
  .tools-parent-container .results-section,
  .tools-parent-container .chart-section {
    background-color: var(--card-bg);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
  }
  .tools-parent-container .input-field label {
    color: #bbdefb;
  }
  .tools-parent-container .gender-btn:not(.active) {
    background-color: #3d3d3d;
    border-color: #555;
    color: var(--text-dark);
  }
  .tools-parent-container .age-inputs input,
  .tools-parent-container .measurement-input input,
  .tools-parent-container .unit-selector select {
    background-color: #3d3d3d;
    border-color: #555;
    color: var(--text-dark);
  }
  .tools-parent-container .disclaimer {
    background-color: #3d3d3d;
  }
  .tools-parent-container .percentile-card {
    background-color: #3d3d3d;
    border-color: #555;
  }
  .tools-parent-container .percentile-bar {
    background-color: #555;
  }
  .tools-parent-container .interpretation {
    background-color: #3d3d3d;
  }
  .tools-parent-container .growth-status {
    background-color: #3d3d3d;
    border-color: #555;
  }
  .tools-parent-container .chart-controls {
    background-color: #3d3d3d;
  }
  .tools-parent-container .chart-btn:not(.active) {
    background-color: #3d3d3d;
    border-color: #555;
    color: var(--text-dark);
  }
} */
@media (prefers-reduced-motion: reduce) {
  .tools-parent-container *,
  .tools-parent-container *::before,
  .tools-parent-container *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}
@media print {
  .tools-parent-container .calculate-btn,
  .tools-parent-container .reset-btn,
  .tools-parent-container .chart-controls,
  .tools-parent-container .gender-btn:not(.active),
  .tools-parent-container footer {
    display: none !important;
  }
  .tools-parent-container .tool-container {
    display: block !important;
  }
  .tools-parent-container .input-section,
  .tools-parent-container .results-section,
  .tools-parent-container .chart-section {
    break-inside: avoid;
    margin-bottom: 2rem;
  }
  .tools-parent-container .chart-container {
    height: 400px;
  }
}
@media (hover: none) and (pointer: coarse) {
  .tools-parent-container .gender-btn,
  .tools-parent-container .chart-btn,
  .tools-parent-container .calculate-btn,
  .tools-parent-container .reset-btn {
    min-height: 44px;
    padding: 0.75rem 1rem;
  }
  .tools-parent-container input,
  .tools-parent-container select,
  .tools-parent-container button {
    font-size: 16px !important;
  }
  .tools-parent-container .chart-container {
    height: 50vh;
  }
}
@media (max-width: 360px) {
  .tools-parent-container .container {
    padding: 0.5rem;
  }
  .tools-parent-container .header-text h1 {
    font-size: 1.25rem;
  }
  .tools-parent-container .gender-buttons {
    flex-direction: column;
  }
  .tools-parent-container .age-inputs {
    flex-direction: column;
    align-items: flex-start;
  }
  .tools-parent-container .age-separator {
    display: none;
  }
  .tools-parent-container .percentile-cards {
    grid-template-columns: 1fr;
  }
}
.tools-parent-container {
  /* Toast notification */
}
.tools-parent-container .toast {
  visibility: hidden;
  min-width: 250px;
  background-color: #333;
  color: #fff;
  text-align: center;
  border-radius: 5px;
  padding: 16px;
  position: fixed;
  z-index: 1000;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 1rem;
  opacity: 0;
  transition: opacity 0.3s, visibility 0.3s;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}
.tools-parent-container .toast.show {
  visibility: visible;
  opacity: 1;
}
.tools-parent-container .toast.error {
  background-color: #f44336;
}
.tools-parent-container .toast.success {
  background-color: #4caf50;
}
.tools-parent-container .toast.warning {
  background-color: #ff9800;
}
.tools-parent-container .error-message {
  color: var(--danger-red);
  font-size: clamp(0.75rem, 1.5vw, 0.85rem);
  margin-top: 0.25rem;
  min-height: 1.2rem;
  font-weight: 500;
  display: none;
}
.tools-parent-container .error-message.show {
  display: block;
}
.tools-parent-container .input-field input.error,
.tools-parent-container .input-field select.error {
  border-color: var(--danger-red);
  background-color: rgba(244, 67, 54, 0.05);
}