.elements-loading {
      display: flex;
      align-items: center;
      justify-content: center;
      min-height: 100vh;
    }
    .elements-app {
      min-height: 100%;
      min-width: 320px;
      height: auto;
      overflow: visible;
      box-sizing: border-box;
    }
    .elements-app * {
      box-sizing: border-box;
    }
    .elements-page {
      overflow-x: auto;
      box-sizing: border-box;
      max-width: 100%;
    }

    .elements-bg-gray-50 { background-color: var(--bgColor); }

    .elements-text-black { color: var(--fontColor); }
    .elements-text-white { color: var(--ButtonFontColor); }
    .elements-text-gray-600 { color: var(--entryConColor); }
    .elements-text-gray-700 { color: var(--fontColor); }
    .elements-text-gray-500 { color: var(--entryConColor); }
    .elements-text-blue-900 { color: var(--themeColor); }
    .elements-text-left { text-align: left; }
    .elements-text-right { text-align: right; }
    .elements-text-center { text-align: center; }
    .elements-font-bold { font-weight: 700; }
    .elements-font-medium { font-weight: 500; }
    .elements-font-mono { font-family: monospace; }
    .elements-text-base { font-size: 1rem; }
    .elements-text-lg { font-size: 1.125rem; }
    .elements-text-sm { font-size: 0.875rem; }
    .elements-text-xs { font-size: 0.75rem; }
    .elements-leading-tight { line-height: 1.25; }
    .elements-leading-none { line-height: 1; }
    .elements-leading-snug { line-height: 1.375; }
    .elements-tabular-nums { font-variant-numeric: tabular-nums; }

    .elements-p-1 { padding: 0.25rem; }
    .elements-p-2 { padding: 0.5rem; }
    .elements-px-2 { padding-left: 0.5rem; padding-right: 0.5rem; }
    .elements-px-2\.5 { padding-left: 0.625rem; padding-right: 0.625rem; }
    .elements-px-3 { padding-left: 0.75rem; padding-right: 0.75rem; }
    .elements-py-0\.5 { padding-top: 0.125rem; padding-bottom: 0.125rem; }
    .elements-py-1 { padding-top: 0.25rem; padding-bottom: 0.25rem; }
    .elements-py-1\.5 { padding-top: 0.375rem; padding-bottom: 0.375rem; }
    .elements-pt-1 { padding-top: 0.25rem; }
    .elements-mb-1 { margin-bottom: 0.25rem; }
    .elements-mb-2 { margin-bottom: 0.5rem; }
    .elements-mb-3 { margin-bottom: 0.75rem; }
    .elements-mt-0\.5 { margin-top: 0.125rem; }
    .elements-mt-1 { margin-top: 0.25rem; }
    .elements-mt-2 { margin-top: 0.5rem; }
    .elements-mr-1 { margin-right: 0.25rem; }
    .elements-ml-0\.5 { margin-left: 0.125rem; }
    .elements-mx-auto { margin-left: auto; margin-right: auto; }

    .elements-flex { display: flex; }
    .elements-grid { display: grid; }
    .elements-flex-col { flex-direction: column; }
    .elements-flex-row { flex-direction: row; }
    .elements-flex-shrink-0 { flex-shrink: 0; }
    .elements-flex-1 { flex: 1 1 0%; }
    .elements-items-center { align-items: center; }
    .elements-items-start { align-items: flex-start; }
    .elements-justify-center { justify-content: center; }
    .elements-justify-between { justify-content: space-between; }
    .elements-gap-0\.5 { gap: 0.125rem; }
    .elements-gap-1 { gap: 0.25rem; }
    .elements-gap-1\.5 { gap: 0.375rem; }
    .elements-gap-2 { gap: 0.5rem; }
    .elements-gap-3 { gap: 0.75rem; }
    .elements-gap-4 { gap: 1rem; }
    .elements-gap-10 { gap: 2.5rem; }
    .elements-content-start { align-content: flex-start; }

    .elements-relative { position: relative; }
    .elements-absolute { position: absolute; }
    .elements-top-0 { top: 0; }
    .elements-pointer-events-none { pointer-events: none; }
    .elements-z-10 { z-index: 10; }

    .elements-bg-orange-100 { background-color: #ffedd5; }
    .elements-border-orange-600 { border-color: #ea580c; }
    .elements-hover-bg-orange-200:hover { background-color: #fed7aa; }

    .elements-bg-yellow-100 { background-color: #fef9c3; }
    .elements-border-yellow-600 { border-color: #ca8a04; }
    .elements-hover-bg-yellow-200:hover { background-color: #fef08a; }

    .elements-bg-purple-100 { background-color: #f3e8ff; }
    .elements-border-purple-600 { border-color: #9333ea; }
    .elements-hover-bg-purple-200:hover { background-color: #e9d5ff; }

    .elements-bg-pink-100 { background-color: #fce7f3; }
    .elements-border-pink-600 { border-color: #db2777; }
    .elements-hover-bg-pink-200:hover { background-color: #fbcfe8; }

    .elements-bg-amber-100 { background-color: #fef3c7; }
    .elements-border-amber-600 { border-color: #d97706; }
    .elements-hover-bg-amber-200:hover { background-color: #fde68a; }

    .elements-bg-red-100 { background-color: #fee2e2; }
    .elements-border-red-600 { border-color: #dc2626; }
    .elements-hover-bg-red-200:hover { background-color: #fecaca; }

    .elements-bg-green-100 { background-color: #dcfce7; }
    .elements-border-green-600 { border-color: #16a34a; }
    .elements-hover-bg-green-200:hover { background-color: #bbf7d0; }

    .elements-bg-blue-100 { background-color: #dbeafe; }
    .elements-border-blue-600 { border-color: #2563eb; }
    .elements-hover-bg-blue-200:hover { background-color: #bfdbfe; }

    .elements-bg-lime-100 { background-color: #ecfccb; }
    .elements-border-lime-600 { border-color: #65a30d; }
    .elements-hover-bg-lime-200:hover { background-color: #d9f99d; }

    .elements-bg-cyan-100 { background-color: #cffafe; }
    .elements-border-cyan-600 { border-color: #0891b2; }
    .elements-hover-bg-cyan-200:hover { background-color: #a5f3fc; }

    .dark .elements-bg-orange-100,
    .dark .elements-bg-yellow-100,
    .dark .elements-bg-purple-100,
    .dark .elements-bg-pink-100,
    .dark .elements-bg-amber-100,
    .dark .elements-bg-red-100,
    .dark .elements-bg-green-100,
    .dark .elements-bg-blue-100,
    .dark .elements-bg-lime-100,
    .dark .elements-bg-cyan-100 { color: #1f2937; }

    .elements-bg-gray-100 { background-color: var(--footerColor); }
    .elements-bg-gray-200 { background-color: var(--footerColor); }
    .elements-bg-white { background-color: var(--cardBg); }
    .elements-bg-blue-900 { background-color: var(--themeColor); }
    .elements-border-gray-100 { border-color: var(--borderColor); }
    .elements-border-gray-200 { border-color: var(--borderColor); }
    .elements-border-gray-300 { border-color: var(--borderColor); }
    .elements-border-gray-400 { border-color: var(--borderColor); }

    .elements-hover-bg-gray-100:hover { background-color: var(--footerColor); }
    .elements-hover-bg-gray-300:hover { background-color: var(--borderColor); }

    .elements-opacity-30 { opacity: 0.3; }
    .elements-opacity-25 { opacity: 0.25; }

    .elements-rounded { border-radius: 0.25rem; }
    .elements-rounded-sm { border-radius: 0.125rem; }
    .elements-rounded-full { border-radius: 9999px; }
    .elements-border { border-width: 1px; border-style: solid; }
    .elements-border-t { border-top-width: 1px; border-top-style: solid; }

    .elements-shadow-sm { box-shadow: var(--cardShadow); }
    .elements-shadow-md { box-shadow: var(--cardShadow); }
    .elements-ring-2 { box-shadow: 0 0 0 2px var(--themeColor); }

    .elements-transition-colors { transition-property: background-color, border-color, color, fill, stroke; transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1); transition-duration: 150ms; }
    .elements-transition-all { transition-property: all; transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1); transition-duration: 150ms; }
    .elements-duration-200 { transition-duration: 200ms; }

    .elements-cursor-pointer { cursor: pointer; }
    .elements-select-none { user-select: none; }

    .elements-w-full { width: 100%; }
    .elements-w-3\.5 { width: 0.875rem; }
    .elements-w-1\.5 { width: 0.375rem; }
    .elements-h-6 { height: 1.5rem; }
    .elements-h-3\.5 { height: 0.875rem; }
    .elements-min-w-0 { min-width: 0px; }
    .elements-min-w-\[80px\] { min-width: 80px; }

    .elements-element-btn {
      transition: all 0.2s ease;
    }
    .elements-element-btn:focus {
      outline: none;
      box-shadow: 0 0 0 2px var(--themeColor);
    }
    .elements-element-btn.elements-selected {
      transform: scale(1.05);
      box-shadow: var(--hoverShadow);
      z-index: 10;
    }

    .elements-phase-solid { background-color: #1a365d; }
    .elements-phase-liquid { background-color: #2563eb; }
    .elements-phase-gas { background-color: #ef4444; }
    .elements-phase-unknown { background-color: #9ca3af; }

    .elements-temp-slider {
      background: linear-gradient(to right,
        #1e3a5f 0%,
        #2563eb 8%,
        #60a5fa 15%,
        #93c5fd 20%,
        #fbbf24 40%,
        #f97316 60%,
        #ef4444 80%,
        #dc2626 100%);
    }
    .elements-temp-slider:focus {
      outline: none;
      box-shadow: 0 0 0 3px var(--themeColor);
    }

    @media (max-width: 640px) {
      .elements-mobile-text-small {
        font-size: 0.7rem;
      }
    }

    .elements-whitespace-nowrap { white-space: nowrap; }
    .elements-overflow-hidden { overflow: hidden; }
    .elements-break-words { word-break: break-word; }
    .elements-content-start { align-content: flex-start; }
    .elements-grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
    .elements-grid-rows-3 { grid-template-rows: repeat(3, 1fr); }