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spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@media (prefers-color-scheme: dark){body{background-color:#121212}.container{background-color:#1a1a1a;box-shadow:0 4px 15px #0000004d}.main-title{color:#fff}.options-input{background-color:#2a2a2a;border-color:#444;color:#fff}.result{background:linear-gradient(135deg,#2a2a2a,#1a1a1a);box-shadow:0 4px 15px #0000004d}.result.spinning{background:linear-gradient(135deg,#2a2a2a,#222)}.result-label{color:#aaa}.result-value{color:#fff}.loading-text{color:#aaa}.default-text{color:#888}.help-text{color:#aaa}.action-button{background-color:#2a2a2ae6;color:#fff}.action-button:hover:not(:disabled){background-color:#2a2a2a}@keyframes pulse{0%{box-shadow:0 4px 15px #0000004d}50%{box-shadow:0 4px 20px #4caf504d}to{box-shadow:0 4px 15px #0000004d}}}@media screen and (max-width: 480px){body{padding:.5rem}.container{width:100%;margin:0;padding:10px;max-width:none;border-radius:8px}.main-title{font-size:1.5rem;margin:0 0 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#666)}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}@media (prefers-color-scheme: dark){:root{--color-background: #1a1a1a;--color-text: #e0e0e0;--color-text-secondary: #a0a0a0;--color-border: #333;--color-surface: #2a2a2a;--color-hover: #333;--color-danger: #ff5555;--color-danger-dark: #cc3333}}