:root {
  --primary-bg: #f5f4ed;
  --secondary-bg: #ffc62f;
  --accent-yellow: #ffdb4d;
  --dark-text: #2c2c2c;
  --light-text: #5a5a5a;
  --border-color: #e8e6d9;
  --shadow-light: rgba(255, 198, 47, 0.1);
  --shadow-medium: rgba(255, 198, 47, 0.2);
  --shadow-dark: rgba(0, 0, 0, 0.1);
}

.tools-parent-container {
  background: linear-gradient(135deg, #fff9e6 0%, #ffe8a3 50%, #ffd966 100%);
}

.tools-parent-container .container {
  max-width: 1200px;
  margin: 0 auto;
  background: var(--primary-bg);
  border-radius: 25px;
  box-shadow: 0 20px 60px var(--shadow-dark);
  overflow: hidden;
}
.tools-parent-container .header {
  background: linear-gradient(135deg, var(--secondary-bg) 0%, var(--accent-yellow) 100%);
  padding: 50px 40px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.tools-parent-container .header::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -10%;
  width: 300px;
  height: 300px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
}
.tools-parent-container .header::after {
  content: "";
  position: absolute;
  bottom: -30%;
  left: -5%;
  width: 200px;
  height: 200px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
}
.tools-parent-container .title {
  font-size: 2.8rem;
  font-weight: 700;
  margin-bottom: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  color: var(--dark-text);
  position: relative;
  z-index: 1;
}
.tools-parent-container .title i {
  font-size: 2.5rem;
  color: #ff6b35;
}
.tools-parent-container .subtitle {
  font-size: 1.1rem;
  font-weight: 400;
  color: var(--dark-text);
  max-width: 700px;
  margin: 0 auto;
  line-height: 1.7;
  position: relative;
  z-index: 1;
}
.tools-parent-container .settings-toggle {
  padding: 25px 40px;
  background: var(--primary-bg);
  border-bottom: 3px solid var(--border-color);
}
.tools-parent-container .settings-btn {
  background: var(--secondary-bg);
  color: var(--dark-text);
  border: none;
  padding: 15px 30px;
  border-radius: 30px;
  cursor: pointer;
  font-size: 1.05rem;
  font-weight: 600;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  gap: 10px;
  box-shadow: 0 5px 15px var(--shadow-medium);
}
.tools-parent-container .settings-btn:hover {
  background: var(--accent-yellow);
  transform: translateY(-3px);
  box-shadow: 0 8px 25px var(--shadow-medium);
}
.tools-parent-container .settings-btn i {
  font-size: 1.2rem;
}
.tools-parent-container .settings-panel {
  background: #fffef8;
  padding: 35px 40px;
  border-bottom: 3px solid var(--border-color);
  display: none;
  animation: slideDown 0.4s ease;
}
.tools-parent-container .settings-panel.active {
  display: block;
}
.tools-parent-container .settings-panel h3 {
  margin-bottom: 25px;
  color: var(--dark-text);
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.4rem;
}
.tools-parent-container .settings-panel h3 i {
  color: var(--secondary-bg);
}
.tools-parent-container .settings-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}
.tools-parent-container .setting-group {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.tools-parent-container .setting-group label {
  font-weight: 600;
  color: var(--dark-text);
  font-size: 0.95rem;
}
.tools-parent-container .setting-group select {
  padding: 12px 18px;
  border: 2px solid var(--border-color);
  border-radius: 12px;
  font-size: 1rem;
  background: white;
  cursor: pointer;
  transition: all 0.3s ease;
  font-family: "Poppins", sans-serif;
}
.tools-parent-container .setting-group select:focus {
  outline: none;
  border-color: var(--secondary-bg);
  box-shadow: 0 0 0 3px var(--shadow-light);
}
.tools-parent-container .calculator-form {
  padding: 45px 40px;
  background: var(--primary-bg);
}
.tools-parent-container .form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-bottom: 35px;
}
.tools-parent-container .form-group {
  display: flex;
  flex-direction: column;
}
.tools-parent-container .form-group label {
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--dark-text);
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1rem;
}
.tools-parent-container .form-group label i {
  color: var(--secondary-bg);
  width: 20px;
  font-size: 1.1rem;
}
.tools-parent-container .form-group input,
.tools-parent-container .form-group select {
  padding: 15px 18px;
  border: 2px solid var(--border-color);
  border-radius: 12px;
  font-size: 1rem;
  transition: all 0.3s ease;
  background: white;
  font-family: "Poppins", sans-serif;
}
.tools-parent-container .form-group input:focus,
.tools-parent-container .form-group select:focus {
  outline: none;
  border-color: var(--secondary-bg);
  box-shadow: 0 0 0 4px var(--shadow-light);
  transform: translateY(-2px);
}
.tools-parent-container .form-group small {
  margin-top: 8px;
  color: var(--light-text);
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  gap: 5px;
}
.tools-parent-container .form-group small i {
  color: var(--secondary-bg);
}
.tools-parent-container .height-feet {
  display: flex;
  gap: 12px;
}
.tools-parent-container .height-feet input {
  flex: 1;
}
.tools-parent-container .activity-group select {
  cursor: pointer;
}
.tools-parent-container .button-container {
  display: flex;
  gap: 15px;
  flex-wrap: wrap;
}
.tools-parent-container .calculate-btn,
.tools-parent-container .clear-btn {
  flex: 1;
  min-width: 200px;
  padding: 18px 35px;
  border: none;
  border-radius: 15px;
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  font-family: "Poppins", sans-serif;
}
.tools-parent-container .calculate-btn {
  background: linear-gradient(135deg, var(--secondary-bg) 0%, var(--accent-yellow) 100%);
  color: var(--dark-text);
  box-shadow: 0 8px 20px var(--shadow-medium);
}
.tools-parent-container .calculate-btn:hover:not(:disabled) {
  transform: translateY(-3px);
  box-shadow: 0 12px 30px var(--shadow-medium);
}
.tools-parent-container .calculate-btn:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}
.tools-parent-container .clear-btn {
  background: #ff6b6b;
  color: white;
  box-shadow: 0 8px 20px rgba(255, 107, 107, 0.3);
}
.tools-parent-container .clear-btn:hover {
  background: #ff5252;
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(255, 107, 107, 0.4);
}
.tools-parent-container .results-section {
  padding: 45px 40px;
  background: #fffef8;
  border-top: 3px solid var(--border-color);
  animation: fadeInUp 0.6s ease;
}
.tools-parent-container .results-section h2 {
  text-align: center;
  margin-bottom: 35px;
  color: var(--dark-text);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  font-size: 2rem;
}
.tools-parent-container .results-section h2 i {
  color: var(--secondary-bg);
}
.tools-parent-container .result-card {
  background: white;
  border-radius: 20px;
  padding: 40px;
  box-shadow: 0 10px 40px var(--shadow-dark);
  border: 3px solid var(--border-color);
}
.tools-parent-container .bmr-result {
  text-align: center;
  padding: 35px;
  background: linear-gradient(135deg, var(--secondary-bg) 0%, var(--accent-yellow) 100%);
  border-radius: 18px;
  margin-bottom: 30px;
  position: relative;
  overflow: hidden;
}
.tools-parent-container .bmr-result::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -20%;
  width: 200px;
  height: 200px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
}
.tools-parent-container .result-icon {
  font-size: 3.5rem;
  margin-bottom: 15px;
  color: #ff6b35;
}
.tools-parent-container .bmr-result h3 {
  color: var(--dark-text);
  font-size: 1.4rem;
  font-weight: 600;
  margin-bottom: 15px;
  position: relative;
  z-index: 1;
}
.tools-parent-container .bmr-result p {
  color: var(--dark-text);
  font-size: 2.2rem;
  font-weight: 700;
  margin-bottom: 10px;
  position: relative;
  z-index: 1;
}
.tools-parent-container .result-note {
  display: block;
  margin-top: 15px;
  color: var(--dark-text);
  font-size: 0.9rem;
  font-style: italic;
  opacity: 0.8;
  position: relative;
  z-index: 1;
}
.tools-parent-container .result-note i {
  margin-right: 5px;
}
.tools-parent-container .tdee-result {
  background: var(--primary-bg);
  padding: 30px;
  border-radius: 15px;
  margin-bottom: 30px;
  border: 2px solid var(--border-color);
}
.tools-parent-container .tdee-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
  padding-bottom: 15px;
  border-bottom: 2px solid var(--border-color);
}
.tools-parent-container .tdee-header i {
  font-size: 1.5rem;
  color: var(--secondary-bg);
}
.tools-parent-container .tdee-header h3 {
  color: var(--dark-text);
  font-size: 1.3rem;
  font-weight: 600;
}
.tools-parent-container .tdee-content p {
  margin-bottom: 12px;
  font-size: 1.1rem;
  color: var(--dark-text);
}
.tools-parent-container .tdee-content p:last-of-type {
  font-size: 1.8rem;
  font-weight: 700;
  color: #ff6b35;
}
.tools-parent-container .download-btn {
  width: 100%;
  background: linear-gradient(135deg, #51cf66 0%, #37b24d 100%);
  color: white;
  border: none;
  padding: 18px 30px;
  border-radius: 15px;
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  box-shadow: 0 8px 20px rgba(55, 178, 77, 0.3);
}
.tools-parent-container .download-btn:hover {
  background: linear-gradient(135deg, #37b24d 0%, #2b8a3e 100%);
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(55, 178, 77, 0.4);
}
@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-15px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
.tools-parent-container {
  /* Responsive Design */
}
@media (max-width: 768px) {
  .tools-parent-container body {
    padding: 10px;
  }
  .tools-parent-container .container {
    border-radius: 20px;
  }
  .tools-parent-container .header {
    padding: 35px 25px;
  }
  .tools-parent-container .title {
    font-size: 2rem;
    flex-direction: column;
    gap: 10px;
  }
  .tools-parent-container .subtitle {
    font-size: 1rem;
  }
  .tools-parent-container .settings-toggle,
  .tools-parent-container .settings-panel,
  .tools-parent-container .calculator-form,
  .tools-parent-container .results-section {
    padding: 25px 20px;
  }
  .tools-parent-container .form-grid,
  .tools-parent-container .settings-grid {
    grid-template-columns: minmax(0,1fr);
    gap: 20px;
  }
  .tools-parent-container .result-card {
    padding: 25px;
  }
  .tools-parent-container .button-container {
    flex-direction: column;
  }
  .tools-parent-container .calculate-btn,
  .tools-parent-container .clear-btn {
    width: 100%;
  }
  .tools-parent-container .bmr-result p {
    font-size: 1.8rem;
  }
  .tools-parent-container .tdee-content p:last-of-type {
    font-size: 1.5rem;
  }
}
@media (max-width: 480px) {
  .tools-parent-container .title {
    font-size: 1.7rem;
  }
  .tools-parent-container .title i {
    font-size: 2rem;
  }
  .tools-parent-container .form-group input,
  .tools-parent-container .form-group select {
    padding: 12px 15px;
  }
  .tools-parent-container .calculate-btn,
  .tools-parent-container .clear-btn {
    padding: 15px 25px;
    font-size: 1rem;
  }
  .tools-parent-container .height-feet {
    flex-direction: column;
    gap: 10px;
  }
  .tools-parent-container .result-icon {
    font-size: 2.5rem;
  }
}
@media print {
  .tools-parent-container body {
    background: white;
    color: black;
  }
  .tools-parent-container .container {
    box-shadow: none;
    background: white;
  }
  .tools-parent-container .settings-toggle,
  .tools-parent-container .calculate-btn,
  .tools-parent-container .clear-btn,
  .tools-parent-container .download-btn {
    display: none;
  }
  .tools-parent-container .header {
    background: #f0f0f0;
    color: black;
  }
}