:root {
  --fs-26-60: clamp(26px, 2.5297vw + 11.43px, 60px) !important;
  --fs-20-42: clamp(20px, 1.636vw + 10.5766px, 42px) !important;
  --fs-16-32: clamp(16px, 9.15px + 1.19vw, 32px) !important;
  --fs-12-24: clamp(12px, 6.8576px + 0.8928vw, 24px) !important;
  --fs-12-20: clamp(12px, 0.595vw + 8.57px, 20px) !important;
  --fs-12-18: clamp(12px, 0.44vw + 9.43px, 18px) !important;
  --fs-12-16: clamp(12px, 10.29px + 0.297vw, 16px) !important;
  --fs-10-16: clamp(10px, 8.525px + 0.3703vw, 16px) !important;
  --primary-bg: #f5f4ed;
  --secondary-bg: #ffc62f;
  --accent-color: #ffb300;
  --text-dark: #2c2c2c;
  --text-light: #5a5a5a;
  --border-color: #e6d89f;
  --success-color: #ffa500;
}

.tools-parent-container {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  background: var(--primary-bg);
  color: var(--text-dark);
  line-height: 1.6;
  padding: var(--fs-12-24);
}

.tools-parent-container .container {
  max-width: 1200px;
  margin: 0 auto;
  background: var(--primary-bg);
}
.tools-parent-container .header {
  text-align: center;
  margin-bottom: var(--fs-16-32);
  padding: var(--fs-12-24);
  background: linear-gradient(135deg, var(--secondary-bg), var(--accent-color));
  border-radius: var(--fs-10-16);
  box-shadow: 0 8px 20px rgba(255, 198, 47, 0.3);
}
.tools-parent-container h1 {
  font-size: var(--fs-26-60);
  color: var(--text-dark);
  margin-bottom: var(--fs-12-16);
  font-weight: 700;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
}
.tools-parent-container .description {
  font-size: var(--fs-12-18);
  color: var(--text-light);
  max-width: 900px;
  margin: 0 auto;
  padding: 0 var(--fs-12-16);
  line-height: 1.8;
}
.tools-parent-container .calculator-wrapper {
  background: white;
  border-radius: var(--fs-12-16);
  padding: var(--fs-16-32);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  margin-bottom: var(--fs-12-24);
}
.tools-parent-container .form-group {
  margin-bottom: var(--fs-12-24);
}
.tools-parent-container label {
  display: block;
  font-size: var(--fs-12-20);
  font-weight: 600;
  margin-bottom: var(--fs-10-16);
  color: var(--text-dark);
}
.tools-parent-container select,
.tools-parent-container input {
  width: 100%;
  padding: var(--fs-12-16);
  font-size: var(--fs-12-18);
  border: 2px solid var(--border-color);
  border-radius: var(--fs-10-16);
  background: var(--primary-bg);
  color: var(--text-dark);
  transition: all 0.3s ease;
}
.tools-parent-container select:focus,
.tools-parent-container input:focus {
  outline: none;
  border-color: var(--secondary-bg);
  box-shadow: 0 0 0 3px rgba(255, 198, 47, 0.2);
}
.tools-parent-container select {
  cursor: pointer;
}
.tools-parent-container .duration-group {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--fs-12-16);
}
.tools-parent-container .weight-container {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--fs-12-16);
  align-items: end;
}
.tools-parent-container .toggle-unit {
  display: flex;
  background: var(--secondary-bg);
  border-radius: var(--fs-10-16);
  overflow: hidden;
  border: 2px solid var(--border-color);
}
.tools-parent-container .toggle-unit button {
  flex: 1;
  padding: var(--fs-12-16);
  font-size: var(--fs-12-16);
  border: none;
  background: transparent;
  color: var(--text-dark);
  cursor: pointer;
  font-weight: 600;
  transition: all 0.3s ease;
}
.tools-parent-container .toggle-unit button.active {
  background: var(--accent-color);
  color: white;
}
.tools-parent-container .button-group {
  display: flex;
  gap: var(--fs-12-16);
  margin-top: var(--fs-12-24);
  flex-wrap: wrap;
}
.tools-parent-container button.calculate-btn,
.tools-parent-container button.clear-btn,
.tools-parent-container button.download-btn {
  flex: 1;
  min-width: 150px;
  padding: var(--fs-12-18);
  font-size: var(--fs-12-20);
  font-weight: 700;
  border: none;
  border-radius: var(--fs-10-16);
  cursor: pointer;
  transition: all 0.3s ease;
  text-transform: uppercase;
  letter-spacing: 1px;
}
.tools-parent-container button.calculate-btn {
  background: linear-gradient(135deg, var(--secondary-bg), var(--accent-color));
  color: var(--text-dark);
  box-shadow: 0 4px 15px rgba(255, 198, 47, 0.4);
}
.tools-parent-container button.calculate-btn:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255, 198, 47, 0.6);
}
.tools-parent-container button.calculate-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}
.tools-parent-container button.clear-btn {
  background: #ff6b6b;
  color: white;
}
.tools-parent-container button.clear-btn:hover {
  background: #ff5252;
  transform: translateY(-2px);
}
.tools-parent-container button.download-btn {
  background: var(--success-color);
  color: white;
}
.tools-parent-container button.download-btn:hover {
  background: #ff8c00;
  transform: translateY(-2px);
}
.tools-parent-container .result-section {
  background: linear-gradient(135deg, var(--secondary-bg), var(--accent-color));
  border-radius: var(--fs-12-16);
  padding: var(--fs-16-32);
  margin-top: var(--fs-12-24);
  display: none;
  animation: slideIn 0.5s ease;
  box-shadow: 0 10px 30px rgba(255, 198, 47, 0.3);
}
.tools-parent-container .result-section.show {
  display: block;
}
.tools-parent-container .result-section h2 {
  font-size: var(--fs-20-42);
  margin-bottom: var(--fs-12-20);
  color: var(--text-dark);
  text-align: center;
  font-weight: 700;
}
.tools-parent-container .result-content {
  background: white;
  padding: var(--fs-12-24);
  border-radius: var(--fs-10-16);
  font-size: var(--fs-12-20);
  line-height: 1.8;
  color: var(--text-dark);
  text-align: center;
  box-shadow: inset 0 2px 10px rgba(0, 0, 0, 0.05);
}
.tools-parent-container .hidden {
  display: none !important;
}
.tools-parent-container .toast {
  position: fixed;
  bottom: var(--fs-12-24);
  right: var(--fs-12-24);
  background: var(--text-dark);
  color: white;
  padding: var(--fs-12-18);
  border-radius: var(--fs-10-16);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
  z-index: 1000;
  animation: toastIn 0.3s ease;
  font-size: var(--fs-12-16);
  max-width: 400px;
}
@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
@keyframes toastIn {
  from {
    opacity: 0;
    transform: translateX(100px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}
@media (max-width: 768px) {
  .tools-parent-container .duration-group {
    grid-template-columns: 1fr;
  }
  .tools-parent-container .weight-container {
    grid-template-columns: 1fr;
  }
  .tools-parent-container .button-group {
    flex-direction: column;
  }
  .tools-parent-container button.calculate-btn,
  .tools-parent-container button.clear-btn,
  .tools-parent-container button.download-btn {
    width: 100%;
  }
  .tools-parent-container .toast {
    right: var(--fs-12-16);
    left: var(--fs-12-16);
    bottom: var(--fs-12-16);
  }
}
.tools-parent-container input::-webkit-outer-spin-button,
.tools-parent-container input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}
.tools-parent-container input[type=number] {
  -moz-appearance: textfield;
}
.tools-parent-container .input-hint {
  font-size: var(--fs-10-16);
  color: var(--text-light);
  margin-top: var(--fs-10-16);
  font-style: italic;
}