:root {
  --primary-bg: #f5f4ed;
  --secondary-bg: #ffc62f;
  --accent-yellow: #ffb800;
  --dark-yellow: #e6a800;
  --text-dark: #4a4a4a;
  --text-light: #6b6b6b;
}

.tools-parent-container {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  background: var(--primary-bg);
  min-height: 100vh;
  padding: 20px;
  position: relative;
}

.tools-parent-container .time-period-selector {
  display: flex;
  gap: 10px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}
.tools-parent-container .period-btn {
  flex: 1;
  min-width: 80px;
  padding: 10px 16px;
  border: 2px solid var(--secondary-bg);
  border-radius: 10px;
  background: white;
  cursor: pointer;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-dark);
  transition: all 0.3s ease;
}
.tools-parent-container .period-btn:hover {
  border-color: var(--dark-yellow);
  background: rgba(255, 198, 47, 0.1);
}
.tools-parent-container .period-btn.active {
  background: var(--secondary-bg);
  color: var(--text-dark);
  border-color: var(--secondary-bg);
  box-shadow: 0 4px 12px rgba(255, 198, 47, 0.3);
}
.tools-parent-container .history-actions {
  display: flex;
  gap: 8px;
  align-items: center;
}
.tools-parent-container .container {
  max-width: 1200px;
  margin: 0 auto;
  background: white;
  border-radius: 25px;
  box-shadow: 0 10px 40px rgba(255, 198, 47, 0.2);
  overflow: hidden;
  border: 3px solid var(--secondary-bg);
}
.tools-parent-container .btn-edit {
  padding: 10px 12px;
  background: #28a745;
  color: white;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-size: 1.2rem;
  font-weight: 700;
  transition: all 0.3s ease;
  min-width: 45px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.tools-parent-container .btn-edit:hover {
  background: #218838;
  transform: scale(1.1);
}
.tools-parent-container .header {
  background: var(--secondary-bg);
  color: var(--text-dark);
  padding: 40px 30px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.tools-parent-container .header::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -10%;
  width: 200px;
  height: 200px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
}
.tools-parent-container .header::after {
  content: "";
  position: absolute;
  bottom: -30%;
  left: -5%;
  width: 150px;
  height: 150px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
}
.tools-parent-container .header h1 {
  font-size: 2.8rem;
  margin-bottom: 10px;
  font-weight: 800;
  position: relative;
  z-index: 1;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
}
.tools-parent-container .header p {
  font-size: 1.1rem;
  opacity: 0.85;
  position: relative;
  z-index: 1;
  font-weight: 500;
}
.tools-parent-container .main-content {
  padding: 35px;
  background: var(--primary-bg);
}
.tools-parent-container .unit-selector {
  display: flex;
  margin-bottom: 30px;
  background: white;
  border-radius: 15px;
  padding: 6px;
  box-shadow: 0 4px 15px rgba(255, 198, 47, 0.15);
  border: 2px solid var(--secondary-bg);
}
.tools-parent-container .unit-btn {
  flex: 1;
  padding: 16px;
  border: none;
  background: transparent;
  border-radius: 12px;
  cursor: pointer;
  font-size: 1.05rem;
  font-weight: 700;
  transition: all 0.3s ease;
  color: var(--text-dark);
}
.tools-parent-container .unit-btn:hover {
  background: rgba(255, 198, 47, 0.1);
}
.tools-parent-container .unit-btn.active {
  background: var(--secondary-bg);
  color: var(--text-dark);
  box-shadow: 0 4px 12px rgba(255, 198, 47, 0.4);
  transform: translateY(-2px);
}
.tools-parent-container .form-section {
  display: none;
}
.tools-parent-container .form-section.active {
  display: block;
  animation: fadeIn 0.4s ease;
}
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
.tools-parent-container .form-group {
  margin-bottom: 25px;
}
.tools-parent-container .form-group label {
  display: block;
  margin-bottom: 10px;
  font-weight: 700;
  color: var(--text-dark);
  font-size: 1.05rem;
}
.tools-parent-container .input-container {
  position: relative;
}
.tools-parent-container .form-group input,
.tools-parent-container .form-group select {
  width: 100%;
  padding: 16px;
  border: 2px solid var(--secondary-bg);
  border-radius: 12px;
  font-size: 1rem;
  transition: all 0.3s ease;
  background: white;
  color: var(--text-dark);
  font-weight: 500;
}
.tools-parent-container .form-group input:focus,
.tools-parent-container .form-group select:focus {
  outline: none;
  border-color: var(--accent-yellow);
  box-shadow: 0 0 0 4px rgba(255, 198, 47, 0.2);
  transform: translateY(-2px);
}
.tools-parent-container .form-group select {
  cursor: pointer;
}
.tools-parent-container .height-inputs {
  display: flex;
  gap: 12px;
}
.tools-parent-container .height-inputs input {
  flex: 1;
}
.tools-parent-container .range-text {
  font-size: 0.9rem;
  color: var(--text-light);
  margin-top: 6px;
  font-weight: 500;
}
.tools-parent-container .error-message {
  color: #dc3545;
  font-size: 0.9rem;
  margin-top: 6px;
  display: none;
  font-weight: 600;
}
.tools-parent-container .buttons {
  display: flex;
  gap: 15px;
  margin-top: 35px;
}
.tools-parent-container .btn {
  flex: 1;
  padding: 18px;
  border: none;
  border-radius: 12px;
  font-size: 1.1rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.3s ease;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.tools-parent-container .btn-calculate {
  background: var(--secondary-bg);
  color: var(--text-dark);
  box-shadow: 0 6px 20px rgba(255, 198, 47, 0.3);
}
.tools-parent-container .btn-calculate:hover {
  background: var(--accent-yellow);
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(255, 198, 47, 0.4);
}
.tools-parent-container .btn-calculate:active {
  transform: translateY(-1px);
}
.tools-parent-container .btn-clear {
  background: white;
  color: var(--text-dark);
  border: 2px solid var(--secondary-bg);
}
.tools-parent-container .btn-clear:hover {
  background: var(--primary-bg);
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
}
.tools-parent-container .result-section {
  display: none;
  flex: 1;
  padding: 35px;
  background: white;
  border-radius: 20px;
  border: 3px solid var(--secondary-bg);
  box-shadow: 0 8px 25px rgba(255, 198, 47, 0.2);
}
.tools-parent-container .result-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 30px;
  padding-bottom: 20px;
  border-bottom: 3px solid var(--secondary-bg);
}
.tools-parent-container .result-header h2 {
  color: var(--text-dark);
  font-size: 2.2rem;
  font-weight: 800;
}
.tools-parent-container .save-btn {
  display: none !important;
  background: var(--secondary-bg);
  color: var(--text-dark);
  border: none;
  padding: 14px 20px;
  border-radius: 12px;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(255, 198, 47, 0.3);
}
.tools-parent-container .save-btn:hover {
  background: var(--accent-yellow);
  display: none;
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(255, 198, 47, 0.4);
}
.tools-parent-container .save-btn span {
  font-size: 1.2rem;
  display: none;
}
.tools-parent-container .bmi-result {
  text-align: center;
  margin-bottom: 30px;
  padding: 25px;
  background: var(--primary-bg);
  border-radius: 15px;
  border: 2px solid var(--secondary-bg);
}
.tools-parent-container .bmi-value {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--text-dark);
  margin-bottom: 12px;
}
.tools-parent-container .bmi-category {
  font-size: 1.5rem;
  font-weight: 700;
  padding: 12px 25px;
  border-radius: 30px;
  display: inline-block;
}
.tools-parent-container .bmi-info {
  background: var(--primary-bg);
  padding: 28px;
  border-radius: 15px;
  margin-top: 20px;
  border: 2px solid var(--secondary-bg);
}
.tools-parent-container .info-item {
  margin-bottom: 16px;
  padding: 14px;
  background: white;
  border-radius: 10px;
  font-size: 1rem;
  border-left: 4px solid var(--secondary-bg);
  transition: all 0.3s ease;
}
.tools-parent-container .info-item:hover {
  transform: translateX(5px);
  box-shadow: 0 4px 12px rgba(255, 198, 47, 0.2);
}
.tools-parent-container .info-item strong {
  color: var(--text-dark);
  font-weight: 700;
}
.tools-parent-container .toast {
  position: fixed;
  top: 20px;
  right: 20px;
  background: white;
  color: var(--text-dark);
  padding: 18px 24px;
  border-radius: 12px;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 600;
  font-size: 1rem;
  z-index: 10000;
  border: 2px solid var(--secondary-bg);
  transform: translateX(400px);
  opacity: 0;
  transition: all 0.3s ease;
}
.tools-parent-container .toast.show {
  transform: translateX(0);
  opacity: 1;
}
.tools-parent-container .toast-icon {
  font-size: 1.5rem;
}
.tools-parent-container .toast-error {
  border-left: 5px solid #dc3545;
}
.tools-parent-container .toast-success {
  border-left: 5px solid #28a745;
}
.tools-parent-container .toast-info {
  border-left: 5px solid var(--secondary-bg);
}
.tools-parent-container .severe-thinness {
  background: linear-gradient(135deg, #ff6b6b 0%, #ee5a6f 100%);
  color: white;
}
.tools-parent-container .moderate-thinness {
  background: linear-gradient(135deg, #ff8787 0%, #ff6b6b 100%);
  color: white;
}
.tools-parent-container .mild-thinness {
  background: linear-gradient(135deg, #ffa07a 0%, #ff8787 100%);
  color: white;
}
.tools-parent-container .normal {
  background: linear-gradient(135deg, var(--secondary-bg) 0%, var(--accent-yellow) 100%);
  color: var(--text-dark);
}
.tools-parent-container .overweight {
  background: linear-gradient(135deg, #ffd93d 0%, var(--secondary-bg) 100%);
  color: var(--text-dark);
}
.tools-parent-container .obese-1 {
  background: linear-gradient(135deg, #ffb347 0%, #ffa500 100%);
  color: white;
}
.tools-parent-container .obese-2 {
  background: linear-gradient(135deg, #ff8c42 0%, #ff7f50 100%);
  color: white;
}
.tools-parent-container .obese-3 {
  background: linear-gradient(135deg, #ff6b6b 0%, #c92a2a 100%);
  color: white;
}
.tools-parent-container .underweight-child {
  background: linear-gradient(135deg, #ff8787 0%, #ff6b6b 100%);
  color: white;
}
.tools-parent-container .healthy-child {
  background: linear-gradient(135deg, var(--secondary-bg) 0%, #6bcf7f 100%);
  color: var(--text-dark);
}
.tools-parent-container .at-risk-child {
  background: linear-gradient(135deg, #ffd93d 0%, var(--secondary-bg) 100%);
  color: var(--text-dark);
}
.tools-parent-container .overweight-child {
  background: linear-gradient(135deg, #ffb347 0%, #ff8c42 100%);
  color: white;
}
.tools-parent-container .result-header-buttons {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
@media (max-width: 1024px) {
  .tools-parent-container .results-container {
    flex-direction: column;
  }
}
.tools-parent-container {
  /* Responsive Design */
}
@media (max-width: 768px) {
  .tools-parent-container .time-period-selector {
    flex-direction: column;
  }
  .tools-parent-container .period-btn {
    min-width: auto;
    width: 100%;
  }
  .tools-parent-container .history-actions {
    width: 100%;
    flex-direction: row;
    justify-content: center;
  }
  .tools-parent-container .btn-edit,
  .tools-parent-container .btn-delete {
    flex: 1;
  }
  .tools-parent-container .results-container {
    gap: 15px;
    margin-top: 30px;
  }
  .tools-parent-container .result-section,
  .tools-parent-container .trend-section {
    padding: 25px;
  }
  .tools-parent-container .trend-header {
    flex-direction: column;
    text-align: center;
  }
  .tools-parent-container .trend-controls {
    width: 100%;
    flex-direction: column;
  }
  .tools-parent-container .btn-trend {
    width: 100%;
  }
  .tools-parent-container .history-item {
    flex-direction: column;
    gap: 15px;
    text-align: center;
  }
  .tools-parent-container .btn-delete {
    width: 100%;
  }
  .tools-parent-container .container {
    margin: 10px;
    border-radius: 20px;
  }
  .tools-parent-container .header h1 {
    font-size: 2.2rem;
  }
  .tools-parent-container .header p {
    font-size: 1rem;
  }
  .tools-parent-container .main-content {
    padding: 25px;
  }
  .tools-parent-container .unit-selector {
    flex-direction: column;
    gap: 8px;
  }
  .tools-parent-container .height-inputs {
    flex-direction: column;
  }
  .tools-parent-container .buttons {
    flex-direction: column;
  }
  .tools-parent-container .result-header {
    flex-direction: column;
    gap: 15px;
    text-align: center;
  }
  .tools-parent-container .toast {
    right: 10px;
    left: 10px;
    top: 10px;
  }
  .tools-parent-container .result-header {
    flex-direction: column;
    gap: 20px;
    text-align: center;
  }
  .tools-parent-container .result-header-buttons {
    width: 100%;
    flex-direction: column;
  }
  .tools-parent-container .save-btn {
    width: 100%;
    justify-content: center;
    display: none;
  }
}
@media (max-width: 480px) {
  .tools-parent-container body {
    padding: 10px;
  }
  .tools-parent-container .header {
    padding: 30px 20px;
  }
  .tools-parent-container .header h1 {
    font-size: 1.9rem;
  }
  .tools-parent-container .main-content {
    padding: 20px;
  }
  .tools-parent-container .bmi-value {
    font-size: 2rem;
  }
  .tools-parent-container .bmi-category {
    font-size: 1.2rem;
  }
}
.tools-parent-container .trend-section {
  flex: 1;
  padding: 35px;
  background: white;
  border-radius: 20px;
  border: 3px solid var(--secondary-bg);
  box-shadow: 0 8px 25px rgba(255, 198, 47, 0.2);
}
.tools-parent-container .trend-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 30px;
  padding-bottom: 20px;
  border-bottom: 3px solid var(--secondary-bg);
  flex-wrap: wrap;
  gap: 15px;
}
.tools-parent-container .results-container {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-top: 40px;
}
.tools-parent-container .trend-header h2 {
  color: var(--text-dark);
  font-size: 2.2rem;
  font-weight: 800;
}
.tools-parent-container .trend-controls {
  display: flex;
  gap: 12px;
}
.tools-parent-container .btn-trend {
  padding: 12px 20px;
  background: var(--secondary-bg);
  color: var(--text-dark);
  border: none;
  border-radius: 10px;
  cursor: pointer;
  font-size: 0.95rem;
  font-weight: 700;
  transition: all 0.3s ease;
  box-shadow: 0 4px 12px rgba(255, 198, 47, 0.3);
}
.tools-parent-container .btn-trend:hover {
  background: var(--accent-yellow);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(255, 198, 47, 0.4);
}
.tools-parent-container .chart-container {
  background: var(--primary-bg);
  padding: 40px;
  border-radius: 15px;
  margin-bottom: 25px;
  border: 2px solid var(--secondary-bg);
  position: relative;
  min-height: 700px;
}
.tools-parent-container .btn-edit img,
.tools-parent-container .btn-delete img {
  width: 20px;
  height: 20px;
  display: block;
  transition: all 0.3s ease;
}
.tools-parent-container .btn-edit:hover img,
.tools-parent-container .btn-delete:hover img {
  transform: scale(1.15);
}
.tools-parent-container .history-list {
  background: var(--primary-bg);
  padding: 20px;
  border-radius: 15px;
  max-height: 450px;
  overflow-y: auto;
  border: 2px solid var(--secondary-bg);
}
.tools-parent-container .history-item {
  background: white;
  padding: 18px;
  margin-bottom: 12px;
  border-radius: 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: 0 3px 10px rgba(255, 198, 47, 0.15);
  transition: all 0.3s ease;
  border-left: 4px solid var(--secondary-bg);
}
.tools-parent-container .history-item:hover {
  transform: translateX(5px);
  box-shadow: 0 5px 15px rgba(255, 198, 47, 0.25);
}
.tools-parent-container .history-item-info {
  flex: 1;
}
.tools-parent-container .history-date {
  font-size: 0.9rem;
  color: var(--text-light);
  margin-bottom: 8px;
  font-weight: 600;
}
.tools-parent-container .history-details {
  font-size: 0.95rem;
  color: var(--text-dark);
  margin-top: 6px;
}
.tools-parent-container .btn-delete {
  padding: 10px 12px;
  background: #ff6b6b;
  color: white;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-size: 1.2rem;
  font-weight: 700;
  transition: all 0.3s ease;
  min-width: 45px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.tools-parent-container .btn-delete:hover {
  background: #ff5252;
  transform: scale(1.1);
}
.tools-parent-container .empty-state {
  text-align: center;
  padding: 40px 20px;
  color: var(--text-dark);
  opacity: 0.6;
}
.tools-parent-container .empty-state-icon {
  font-size: 3rem;
  margin-bottom: 15px;
}
.tools-parent-container .empty-state-text {
  font-size: 1.1rem;
  font-weight: 500;
}
.tools-parent-container .history-list::-webkit-scrollbar {
  width: 10px;
}
.tools-parent-container .history-list::-webkit-scrollbar-track {
  background: var(--primary-bg);
  border-radius: 10px;
}
.tools-parent-container .history-list::-webkit-scrollbar-thumb {
  background: var(--secondary-bg);
  border-radius: 10px;
}
.tools-parent-container .history-list::-webkit-scrollbar-thumb:hover {
  background: var(--dark-yellow);
}
.tools-parent-container .date-time-input-section {
  background: linear-gradient(135deg, #fff9e6 0%, #fffbf0 100%);
  padding: 25px;
  border-radius: 15px;
  margin-top: 25px;
  border: 2px solid var(--secondary-bg);
}
.tools-parent-container .date-time-input-section h3 {
  color: var(--text-dark);
  font-size: 1.4rem;
  margin-bottom: 18px;
  font-weight: 700;
}
.tools-parent-container .datetime-group {
  display: flex;
  gap: 15px;
  margin-bottom: 12px;
}
.tools-parent-container .datetime-item {
  flex: 1;
}
.tools-parent-container .datetime-item label {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
  color: var(--text-dark);
  font-size: 0.95rem;
}
.tools-parent-container .datetime-item input {
  width: 100%;
  padding: 12px;
  border: 2px solid var(--secondary-bg);
  border-radius: 10px;
  font-size: 1rem;
  font-weight: 500;
  background: white;
  transition: all 0.3s ease;
}
.tools-parent-container .datetime-item input:focus {
  outline: none;
  border-color: var(--accent-yellow);
  box-shadow: 0 0 0 4px rgba(255, 198, 47, 0.2);
}
.tools-parent-container .datetime-note {
  font-size: 0.9rem;
  color: var(--text-light);
  font-weight: 500;
  margin-top: 10px;
}
@media (max-width: 768px) {
  .tools-parent-container .datetime-group {
    flex-direction: column;
  }
}
.tools-parent-container .month-dropdown {
  flex: 1;
  min-width: 150px;
  padding: 10px 16px;
  border: 2px solid var(--secondary-bg);
  border-radius: 10px;
  background: white;
  cursor: pointer;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-dark);
  transition: all 0.3s ease;
}
.tools-parent-container .month-dropdown:hover {
  border-color: var(--dark-yellow);
  background: rgba(255, 198, 47, 0.1);
}
.tools-parent-container .month-dropdown:focus {
  outline: none;
  border-color: var(--accent-yellow);
  box-shadow: 0 0 0 4px rgba(255, 198, 47, 0.2);
}
.tools-parent-container .required-star {
  color: #dc3545;
  font-weight: bold;
  margin-left: 3px;
}
.tools-parent-container .date-time-input-section {
  margin-bottom: 25px;
  transition: all 0.3s ease;
}
.tools-parent-container .datetime-note strong {
  color: #dc3545;
}
@keyframes shake {
  0%, 100% {
    transform: translateX(0);
  }
  10%, 30%, 50%, 70%, 90% {
    transform: translateX(-5px);
  }
  20%, 40%, 60%, 80% {
    transform: translateX(5px);
  }
}
.tools-parent-container .toast-confirm {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: white;
  color: var(--text-dark);
  padding: 25px;
  border-radius: 15px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
  z-index: 10001;
  border: 3px solid #ff6b6b;
  min-width: 400px;
  max-width: 90%;
}
.tools-parent-container .toast-confirm-content {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
  font-weight: 600;
  font-size: 1.05rem;
}
.tools-parent-container .toast-confirm-buttons {
  display: flex;
  gap: 12px;
  justify-content: flex-end;
}
.tools-parent-container .toast-btn {
  padding: 12px 24px;
  border: none;
  border-radius: 10px;
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.3s ease;
  text-transform: uppercase;
}
.tools-parent-container .toast-btn-yes {
  background: #ff6b6b;
  color: white;
}
.tools-parent-container .toast-btn-yes:hover {
  background: #ff5252;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(255, 107, 107, 0.4);
}
.tools-parent-container .toast-btn-no {
  background: #e9ecef;
  color: var(--text-dark);
}
.tools-parent-container .toast-btn-no:hover {
  background: #dee2e6;
  transform: translateY(-2px);
}
@media (max-width: 480px) {
  .tools-parent-container .toast-confirm {
    min-width: auto;
    width: 90%;
    padding: 20px;
  }
  .tools-parent-container .toast-confirm-content {
    font-size: 0.95rem;
  }
  .tools-parent-container .toast-confirm-buttons {
    flex-direction: column;
  }
  .tools-parent-container .toast-btn {
    width: 100%;
  }
}