@import"https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap";:root{--color-bg-primary: #0a0a0f;--color-bg-secondary: #12121a;--color-bg-tertiary: #1a1a25;--color-bg-glass: rgba(20, 20, 30, .7);--color-bg-glass-hover: rgba(30, 30, 45, .8);--color-accent-primary: #4fc3f7;--color-accent-secondary: #7c4dff;--color-accent-success: #69f0ae;--color-accent-warning: #ffd54f;--color-accent-danger: #ff5252;--color-orbital-s: #42a5f5;--color-orbital-p: #66bb6a;--color-orbital-d: #ffa726;--color-orbital-f: #ab47bc;--color-text-primary: #ffffff;--color-text-secondary: rgba(255, 255, 255, .7);--color-text-tertiary: rgba(255, 255, 255, .5);--color-text-muted: rgba(255, 255, 255, .3);--color-border: rgba(255, 255, 255, .1);--color-border-hover: rgba(255, 255, 255, .2);--font-primary: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;--font-mono: "JetBrains Mono", "Fira Code", monospace;--spacing-xs: 4px;--spacing-sm: 8px;--spacing-md: 16px;--spacing-lg: 24px;--spacing-xl: 32px;--spacing-2xl: 48px;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 16px;--radius-xl: 24px;--radius-full: 9999px;--shadow-sm: 0 2px 8px rgba(0, 0, 0, .3);--shadow-md: 0 4px 16px rgba(0, 0, 0, .4);--shadow-lg: 0 8px 32px rgba(0, 0, 0, .5);--shadow-glow: 0 0 20px rgba(79, 195, 247, .3);--transition-fast: .15s ease;--transition-normal: .25s ease;--transition-slow: .4s ease}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body{width:100%;height:100%;overflow:hidden}body{font-family:var(--font-primary);font-size:14px;line-height:1.5;color:var(--color-text-primary);background:var(--color-bg-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}#app{position:relative;width:100%;height:100%}#viewer{position:absolute;top:0;left:0;width:100%;height:100%;display:block}#ui-overlay{position:absolute;top:0;left:0;width:100%;height:100%;pointer-events:none;z-index:10}#ui-overlay>*{pointer-events:auto}#element-info{position:absolute;top:var(--spacing-lg);left:var(--spacing-lg);min-width:280px;background:var(--color-bg-glass);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--spacing-lg);box-shadow:var(--shadow-lg)}.element-header{display:flex;align-items:flex-start;gap:var(--spacing-md);margin-bottom:var(--spacing-md)}.element-symbol{font-size:48px;font-weight:700;line-height:1;background:linear-gradient(135deg,var(--color-accent-primary),var(--color-accent-secondary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.element-details{flex:1}.element-name{font-size:20px;font-weight:600;margin-bottom:var(--spacing-xs)}.element-number{font-size:13px;color:var(--color-text-secondary);font-family:var(--font-mono)}.element-config{margin-top:var(--spacing-md);padding-top:var(--spacing-md);border-top:1px solid var(--color-border)}.config-label{font-size:11px;text-transform:uppercase;letter-spacing:.5px;color:var(--color-text-tertiary);margin-bottom:var(--spacing-sm)}.config-value{font-family:var(--font-mono);font-size:13px;color:var(--color-text-secondary);word-break:break-all}.ion-controls{display:flex;align-items:center;gap:var(--spacing-sm);margin-top:var(--spacing-md)}.ion-btn{width:32px;height:32px;border:1px solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-bg-tertiary);color:var(--color-text-primary);font-size:18px;font-weight:500;cursor:pointer;transition:all var(--transition-fast);display:flex;align-items:center;justify-content:center}.ion-btn:hover:not(:disabled){background:var(--color-bg-glass-hover);border-color:var(--color-accent-primary);box-shadow:var(--shadow-glow)}.ion-btn:disabled{opacity:.3;cursor:not-allowed}.ion-state{font-family:var(--font-mono);font-size:16px;font-weight:600;min-width:50px;text-align:center}.ion-state.positive{color:var(--color-accent-danger)}.ion-state.negative{color:var(--color-accent-primary)}.ion-state.neutral{color:var(--color-text-secondary)}#periodic-table{position:absolute;bottom:var(--spacing-sm);left:50%;transform:translate(-50%) scale(.7);transform-origin:bottom center;background:var(--color-bg-glass);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--spacing-sm);box-shadow:var(--shadow-lg);max-width:95vw;overflow-x:auto;opacity:.85;transition:opacity var(--transition-fast),transform var(--transition-normal)}#periodic-table:hover{opacity:1;transform:translate(-50%) scale(.8)}.periodic-grid{display:grid;grid-template-columns:repeat(18,1fr);gap:1px;min-width:540px}.element-cell{width:28px;height:28px;display:flex;flex-direction:column;align-items:center;justify-content:center;background:var(--color-bg-tertiary);border:1px solid transparent;border-radius:var(--radius-sm);cursor:pointer;transition:all var(--transition-fast);position:relative}.element-cell:hover{background:var(--color-bg-glass-hover);border-color:var(--color-accent-primary);transform:scale(1.15);z-index:10;box-shadow:var(--shadow-glow)}.element-cell.selected{background:var(--color-accent-primary);border-color:var(--color-accent-primary)}.element-cell.selected .cell-symbol{color:var(--color-bg-primary)}.element-cell.empty{visibility:hidden}.cell-number{font-size:6px;color:var(--color-text-muted);position:absolute;top:1px;left:2px}.cell-symbol{font-size:10px;font-weight:600;color:var(--color-text-primary)}.element-cell[data-category=alkali]{background:#ff575733}.element-cell[data-category=alkaline]{background:#ffa00033}.element-cell[data-category=transition]{background:#ffeb3b26}.element-cell[data-category=post-transition]{background:#4caf5033}.element-cell[data-category=metalloid]{background:#00bcd433}.element-cell[data-category=nonmetal]{background:#2196f333}.element-cell[data-category=halogen]{background:#9c27b033}.element-cell[data-category=noble]{background:#e91e6333}.element-cell[data-category=lanthanide]{background:#79554833}.element-cell[data-category=actinide]{background:#607d8b33}#orbital-legend{position:absolute;top:var(--spacing-lg);right:var(--spacing-lg);background:var(--color-bg-glass);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--spacing-md);box-shadow:var(--shadow-lg);min-width:140px}.legend-title{font-size:11px;text-transform:uppercase;letter-spacing:.5px;color:var(--color-text-tertiary);margin-bottom:var(--spacing-sm)}.legend-item{display:flex;align-items:center;gap:var(--spacing-sm);padding:var(--spacing-xs) 0;cursor:pointer;transition:opacity var(--transition-fast)}.legend-item.hidden{opacity:.3}.legend-color{width:12px;height:12px;border-radius:var(--radius-full);box-shadow:0 0 8px currentColor}.legend-color.s{background:var(--color-orbital-s);color:var(--color-orbital-s)}.legend-color.p{background:var(--color-orbital-p);color:var(--color-orbital-p)}.legend-color.d{background:var(--color-orbital-d);color:var(--color-orbital-d)}.legend-color.f{background:var(--color-orbital-f);color:var(--color-orbital-f)}.legend-label{font-size:13px;font-weight:500}#loading-screen{position:fixed;top:0;left:0;width:100%;height:100%;background:var(--color-bg-primary);display:flex;flex-direction:column;align-items:center;justify-content:center;z-index:1000;transition:opacity var(--transition-slow)}#loading-screen.hidden{opacity:0;pointer-events:none}.loader{width:60px;height:60px;border:3px solid var(--color-border);border-top-color:var(--color-accent-primary);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}#loading-screen p{margin-top:var(--spacing-lg);color:var(--color-text-secondary);font-size:14px}.tooltip{position:absolute;background:var(--color-bg-secondary);border:1px solid var(--color-border);border-radius:var(--radius-sm);padding:var(--spacing-sm) var(--spacing-md);font-size:12px;color:var(--color-text-primary);box-shadow:var(--shadow-md);pointer-events:none;z-index:100;white-space:nowrap}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--color-bg-secondary);border-radius:var(--radius-full)}::-webkit-scrollbar-thumb{background:var(--color-border);border-radius:var(--radius-full)}::-webkit-scrollbar-thumb:hover{background:var(--color-border-hover)}@media(max-width:768px){#element-info{top:var(--spacing-sm);left:var(--spacing-sm);right:var(--spacing-sm);min-width:auto}#orbital-legend{display:none}#periodic-table{bottom:var(--spacing-sm);padding:var(--spacing-sm)}.element-cell{width:28px;height:28px}.cell-symbol{font-size:10px}.cell-number{display:none}}#viz-controls{position:absolute;top:calc(var(--spacing-lg) + 180px);right:var(--spacing-lg);background:var(--color-bg-glass);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--spacing-md);box-shadow:var(--shadow-lg);min-width:180px}.controls-title{font-size:11px;text-transform:uppercase;letter-spacing:.5px;color:var(--color-text-tertiary);margin-bottom:var(--spacing-md)}.control-group{margin-bottom:var(--spacing-md)}.control-group:last-child{margin-bottom:0}.control-label{display:flex;justify-content:space-between;align-items:center;font-size:12px;color:var(--color-text-secondary);margin-bottom:var(--spacing-xs)}.control-value{font-family:var(--font-mono);font-size:11px;color:var(--color-accent-primary)}.control-slider{width:100%;height:4px;-webkit-appearance:none;-moz-appearance:none;appearance:none;background:var(--color-bg-tertiary);border-radius:var(--radius-full);outline:none;cursor:pointer}.control-slider::-webkit-slider-thumb{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:14px;height:14px;background:var(--color-accent-primary);border-radius:50%;cursor:pointer;transition:transform var(--transition-fast)}.control-slider::-webkit-slider-thumb:hover{transform:scale(1.2);box-shadow:var(--shadow-glow)}.control-slider::-moz-range-thumb{width:14px;height:14px;background:var(--color-accent-primary);border:none;border-radius:50%;cursor:pointer}.toggle-group{display:flex;gap:2px;background:var(--color-bg-tertiary);border-radius:var(--radius-sm);padding:2px}.toggle-btn{flex:1;padding:var(--spacing-xs) var(--spacing-sm);border:none;border-radius:var(--radius-sm);background:transparent;color:var(--color-text-tertiary);font-size:11px;font-weight:500;cursor:pointer;transition:all var(--transition-fast)}.toggle-btn:hover{color:var(--color-text-primary)}.toggle-btn.active{background:var(--color-accent-primary);color:var(--color-bg-primary)}@media(max-width:768px){#viz-controls{display:none}}