@import"https://fonts.googleapis.com/css2?family=Inter:wght@350;400;450;500;550;600&display=swap";:root{--accent: #6366f1;--accent-hover: #4f46e5;--accent-light: #818cf8;--accent-muted: rgba(99, 102, 241, .12);--accent-subtle: rgba(99, 102, 241, .06);--success: #10b981;--success-muted: rgba(16, 185, 129, .1);--warning: #f59e0b;--warning-muted: rgba(245, 158, 11, .1);--danger: #ef4444;--danger-muted: rgba(239, 68, 68, .1);--white: #ffffff;--gray-25: #fafafa;--gray-50: #f9fafb;--gray-100: #f3f4f6;--gray-200: #e5e7eb;--gray-300: #d1d5db;--gray-400: #9ca3af;--gray-500: #6b7280;--gray-600: #4b5563;--gray-700: #374151;--gray-800: #1f2937;--gray-900: #111827;--text: #111827;--text-secondary: #4b5563;--text-muted: #6b7280;--text-subtle: #9ca3af;--font-sans: "Inter", system-ui, -apple-system, sans-serif;--letter-spacing-tight: -.025em;--letter-spacing-base: -.015em;--weight-medium: 500;--weight-semibold: 600;--weight-bold: 700;--bg-page: #f1f5f9;--bg-gradient: linear-gradient(180deg, #e2e8f0 0%, #f1f5f9 100%);--glass-bg: #ffffff;--glass-border: #e5e7eb;--card-bg: #ffffff;--card-bg-rgb: 255, 255, 255;--card-bg-gradient: linear-gradient(145deg, #ffffff 0%, #f9fafb 100%);--card-border: #e5e7eb;--card-hover-bg: #ffffff;--sidebar-bg: #f8fafc;--header-bg: #ffffff;--header-border: #e2e8f0;--bg: var(--white);--bg-subtle: var(--gray-50);--bg-muted: var(--gray-100);--border: var(--gray-200);--border-subtle: var(--gray-100);--border-strong: var(--gray-300);--shadow-xs: 0 1px 2px rgba(0, 0, 0, .04);--shadow-sm: 0 1px 2px rgba(0, 0, 0, .04), 0 2px 4px rgba(0, 0, 0, .04);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .08), 0 2px 4px -1px rgba(0, 0, 0, .04), 0 0 0 1px rgba(0, 0, 0, .02);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .08), 0 4px 6px -2px rgba(0, 0, 0, .04), 0 0 0 1px rgba(0, 0, 0, .01);--shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, .1), 0 10px 10px -5px rgba(0, 0, 0, .04), 0 0 0 1px rgba(0, 0, 0, .01);--shadow-glow: 0 0 20px rgba(99, 102, 241, .25);--shadow-focus: 0 0 0 3px rgba(99, 102, 241, .15);--radius-xs: .25rem;--radius-sm: .375rem;--radius-md: .5rem;--radius-lg: .75rem;--radius-xl: 1rem;--radius-2xl: 1.5rem;--space-0: 0px;--space-1: .25rem;--space-2: .5rem;--space-3: .75rem;--space-4: 1rem;--space-5: 1.5rem;--space-6: 2rem;--space-7: 2.5rem;--space-8: 3rem;--space-9: 4rem;--ease-out: cubic-bezier(.16, 1, .3, 1);--ease-in-out: cubic-bezier(.45, 0, .55, 1);--ease-spring: cubic-bezier(.34, 1.56, .64, 1);--duration-fast: .12s;--duration-normal: .22s;--duration-slow: .35s;--transition: var(--duration-normal) var(--ease-out);--transition-fast: var(--duration-fast) var(--ease-out);--transition-slow: var(--duration-slow) var(--ease-out);--toggle-knob-color: #FFFFFF;--toggle-knob-shadow: 0 1px 3px rgba(0, 0, 0, .15), 0 1px 2px rgba(0, 0, 0, .1);--shadow-card: 0 0 0 1px rgba(0, 0, 0, .03), 0 2px 4px rgba(0, 0, 0, .05), 0 12px 24px rgba(0, 0, 0, .05);--shadow-card-hover: 0 0 0 1px rgba(0, 0, 0, .03), 0 4px 8px rgba(0, 0, 0, .06), 0 24px 48px rgba(0, 0, 0, .08);--shadow-elevated: 0 0 0 1px rgba(0, 0, 0, .02), 0 4px 8px rgba(0, 0, 0, .04), 0 16px 32px rgba(0, 0, 0, .06);--shadow-accent-glow: 0 4px 20px -4px rgba(99, 102, 241, .3);--glass-bg: rgba(255, 255, 255, .7);--glass-border: rgba(255, 255, 255, .4);--glass-blur: 16px;--surface-glass: inset 0 1px 1px rgba(255, 255, 255, .4), 0 1px 2px rgba(0, 0, 0, .05);--dot-color: rgba(0, 0, 0, .035)}[data-theme=dark]{--accent: #818cf8;--accent-hover: #a5b4fc;--accent-light: #c7d2fe;--accent-muted: rgba(129, 140, 248, .15);--accent-subtle: rgba(129, 140, 248, .08);--success: #34d399;--success-muted: rgba(52, 211, 153, .15);--warning: #fbbf24;--warning-muted: rgba(251, 191, 36, .15);--danger: #f87171;--danger-muted: rgba(248, 113, 113, .15);--text: #f9fafb;--text-secondary: #d1d5db;--text-muted: #9ca3af;--text-subtle: #6b7280;--bg-page: #020617;--bg-gradient: linear-gradient(180deg, #0f172a 0%, #020617 100%);--glass-bg: #0f172a;--glass-border: #334155;--card-bg: #1e293b;--card-bg-rgb: 30, 41, 59;--card-bg-gradient: linear-gradient(145deg, #1e293b 0%, #0f172a 100%);--card-border: #334155;--card-hover-bg: #334155;--sidebar-bg: #111827;--header-bg: #1e293b;--header-border: #334155;--bg: #1e293b;--bg-subtle: #334155;--bg-muted: #475569;--border: #334155;--border-subtle: #1e293b;--border-strong: #475569;--shadow-xs: 0 1px 2px rgba(0, 0, 0, .4);--shadow-sm: 0 2px 4px rgba(0, 0, 0, .4);--shadow-md: 0 4px 8px rgba(0, 0, 0, .4), 0 0 0 1px rgba(255, 255, 255, .02);--shadow-lg: 0 8px 16px rgba(0, 0, 0, .5), 0 0 0 1px rgba(255, 255, 255, .02);--shadow-xl: 0 16px 32px rgba(0, 0, 0, .6), 0 0 0 1px rgba(255, 255, 255, .02);--shadow-glow: 0 0 25px rgba(129, 140, 248, .2);--shadow-focus: 0 0 0 3px rgba(129, 140, 248, .2);--toggle-knob-color: #F3F4F6;--toggle-knob-shadow: 0 1px 3px rgba(0, 0, 0, .3), 0 1px 2px rgba(0, 0, 0, .2);--shadow-card: 0 0 0 1px rgba(255, 255, 255, .03), 0 2px 4px rgba(0, 0, 0, .2), 0 12px 24px rgba(0, 0, 0, .25);--shadow-card-hover: 0 0 0 1px rgba(255, 255, 255, .05), 0 4px 8px rgba(0, 0, 0, .25), 0 24px 48px rgba(0, 0, 0, .35);--shadow-elevated: 0 0 0 1px rgba(255, 255, 255, .03), 0 4px 8px rgba(0, 0, 0, .2), 0 16px 32px rgba(0, 0, 0, .3);--shadow-accent-glow: 0 4px 20px -4px rgba(129, 140, 248, .4);--glass-bg-translucent: rgba(15, 23, 42, .8);--glass-border-translucent: rgba(255, 255, 255, .08);--dot-color: rgba(255, 255, 255, .02)}[data-high-contrast=true]{--success: #648fff;--success-muted: rgba(100, 143, 255, .15);--warning: #b45309;--warning-muted: rgba(180, 83, 9, .15);--danger: #dc267f;--danger-muted: rgba(220, 38, 127, .15);--accent: #785ef0;--accent-hover: #5e46d0;--accent-light: #9480f4;--accent-muted: rgba(120, 94, 240, .25);--text: #000000;--text-secondary: #1f2937;--text-muted: #374151;--text-subtle: #4b5563;--border: #9ca3af;--border-subtle: #d1d5db;--border-strong: #6b7280}[data-theme=dark][data-high-contrast=true]{--success: #78a9ff;--warning: #ffc133;--danger: #e85e9c;--text: #ffffff;--text-secondary: #f3f4f6;--text-muted: #e5e7eb;--text-subtle: #d1d5db;--border: #6b7280;--border-subtle: #4b5563;--border-strong: #9ca3af;--bg-subtle: #0f172a}@media(prefers-contrast:high){:root{--border: rgba(0, 0, 0, .2);--border-subtle: rgba(0, 0, 0, .15);--border-strong: rgba(0, 0, 0, .3)}[data-theme=dark]{--border: rgba(255, 255, 255, .2);--border-subtle: rgba(255, 255, 255, .15);--border-strong: rgba(255, 255, 255, .3)}}*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}html{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility;font-size:15px;scroll-behavior:smooth;overflow-x:clip}body{font-family:var(--font-sans);font-size:1rem;line-height:1.6;font-weight:400;letter-spacing:var(--letter-spacing-base);color:var(--text);background:var(--bg-page);background-image:var(--bg-gradient);min-height:100vh;font-feature-settings:"cv11","ss01";position:relative;overflow-x:clip}body:before{content:"";position:fixed;top:0;left:0;width:100%;height:100%;background-image:radial-gradient(circle at 1px 1px,var(--dot-color) 1px,transparent 0);background-size:24px 24px;pointer-events:none;opacity:.6;z-index:-1;will-change:transform;transform:translateZ(0)}@media(max-width:768px){body:before{background-size:32px 32px;opacity:.4}}@media(prefers-reduced-motion:reduce){body:before{display:none}}::selection{background:var(--accent-muted);color:var(--text)}@keyframes fadeIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}@keyframes copiedFlash{0%{background-color:var(--accent-muted);transform:scale(1.05)}to{background-color:transparent;transform:scale(1)}}@keyframes fadeInScale{0%{opacity:0;transform:scale(.98)}to{opacity:1;transform:scale(1)}}@keyframes shimmer{0%{background-position:-200% 0}to{background-position:200% 0}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}body:before{display:none}}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border-strong);border-radius:10px;border:3px solid transparent;background-clip:content-box}::-webkit-scrollbar-thumb:hover{background:var(--gray-400);background-clip:content-box}[data-theme=dark] ::-webkit-scrollbar-thumb{background:var(--gray-700)}[data-theme=dark] ::-webkit-scrollbar-thumb:hover{background:var(--gray-600)}.container{max-width:1650px;margin:0 auto;padding:var(--space-6) var(--space-7) var(--space-2)}.main-layout{display:flex;flex-direction:column;gap:var(--space-5)}.main-content-grid{display:grid;grid-template-columns:320px 1fr;gap:var(--space-6);align-items:stretch}.header{background:var(--header-bg);border-radius:var(--radius-xl);padding:var(--space-3) var(--space-5);box-shadow:var(--shadow-md);border:1px solid var(--header-border);display:flex;justify-content:space-between;align-items:center;gap:var(--space-5);margin-bottom:var(--space-3);position:relative;transition:all var(--transition)}.header:hover{box-shadow:var(--shadow-lg);border-color:var(--border-strong);transform:translateY(-1px)}.header-content{display:flex;align-items:center;gap:var(--space-4)}.header h1{font-size:1.25rem;font-weight:650;letter-spacing:-.02em;background:linear-gradient(135deg,var(--text) 0%,var(--text-secondary) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin:0}[data-theme=dark] .header h1{background:linear-gradient(135deg,#FFFFFF 0%,var(--gray-300) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.header-subtitle{font-size:.875rem;font-weight:400;color:var(--text-muted);margin:0;padding-left:var(--space-4);border-left:1px solid var(--border);letter-spacing:-.01em}.input-sidebar{background:var(--sidebar-bg);border-radius:var(--radius-xl);padding:var(--space-5);box-shadow:var(--shadow-elevated);border:1px solid var(--card-border);z-index:10;transition:box-shadow var(--transition),border-color var(--transition)}.input-sidebar:hover{box-shadow:var(--shadow-card-hover);border-color:var(--border)}.sidebar-section-title{font-size:.8rem;font-weight:600;text-transform:uppercase;letter-spacing:.08em;color:var(--text);margin-bottom:var(--space-3);margin-top:0}.sidebar-section-title:not(:first-child){margin-top:var(--space-8);padding-top:var(--space-6);border-top:2px solid var(--border-strong)}.calculator-section{background:var(--card-bg);border-radius:var(--radius-xl);padding:var(--space-6);box-shadow:var(--shadow-card);border:1px solid var(--card-border);transition:transform var(--transition),box-shadow var(--transition),border-color var(--transition);animation:fadeInScale .5s var(--ease-out) forwards}.calculator-section:hover{transform:translateY(-2px);box-shadow:var(--shadow-card-hover);border-color:var(--border)}.calculator-main{display:flex;flex-direction:column;gap:var(--space-6);flex:1}.calculator-main .calculator-section:last-child{flex:1;display:flex;flex-direction:column;justify-content:center}.site-footer{grid-column:1 / -1;text-align:center;padding:var(--space-2) 0;margin-top:0;border-top:1px solid var(--border-subtle)}.footer-content{display:flex;flex-direction:column;align-items:center;gap:var(--space-1)}.footer-row{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:var(--space-2);font-size:.8125rem;line-height:1.6}.copyright-row{margin-top:var(--space-1)}.copyright{font-weight:550;color:var(--text-muted);font-size:.75rem;letter-spacing:-.01em}.footer-text{font-weight:450;color:var(--text-muted)}.footer-link{color:var(--accent);text-decoration:none;font-weight:550;transition:all .15s ease;border-bottom:1px solid transparent}.footer-link:hover{color:var(--accent-light);border-bottom-color:var(--accent-light)}.footer-divider{color:var(--border-subtle);font-size:.75rem;padding:0 var(--space-1);opacity:.6}@media(max-width:1100px){.container{padding:var(--space-5) var(--space-5)}.main-content-grid{grid-template-columns:300px 1fr;gap:var(--space-5)}}@media(max-width:900px){.container{padding:var(--space-4)}.main-content-grid{grid-template-columns:1fr;gap:var(--space-5)}.input-sidebar{position:static;padding:var(--space-5)}.critical-properties-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:600px){.container{padding:var(--space-3);width:100%;box-sizing:border-box}.header{padding:var(--space-3);flex-direction:column;align-items:stretch;gap:var(--space-3);border-radius:var(--radius-lg)}.header-content{flex-direction:column;align-items:flex-start;gap:4px}.header-subtitle{padding-left:0;border-left:none;font-size:.8125rem}.header h1{font-size:1.125rem}.header-actions{display:flex!important;gap:6px!important;justify-content:flex-end;flex-wrap:wrap}.calculator-section{padding:var(--space-4);border-radius:var(--radius-lg)}.input-sidebar{padding:var(--space-4);border-radius:var(--radius-lg);width:100%}.main-content-grid{display:flex;flex-direction:column;gap:var(--space-4)}.critical-properties-grid{grid-template-columns:1fr;gap:var(--space-3)}.property-card{padding:var(--space-4);overflow:hidden}.main-value{font-size:1.25rem;word-break:break-all;overflow-wrap:anywhere}.sidebar-section-title{font-size:.625rem}}@media(max-width:768px){.segment-btn,.radio-label{min-height:44px}input[type=number],input[type=text],select{min-height:44px;font-size:16px}.theme-toggle{min-height:44px}}@media(max-width:480px){.header{padding:var(--space-2)}.header h1{font-size:1rem}.header-subtitle{font-size:.75rem}.theme-toggle{min-width:auto;width:44px;padding:0;justify-content:center}.theme-toggle span:not(.theme-toggle-icon){display:none}.theme-toggle-icon{margin:0}}.text-secondary{color:var(--text-secondary)}.input-group{margin-bottom:var(--space-4)}.input-group:last-child{margin-bottom:0}.input-group input[type=number]::-webkit-inner-spin-button,.input-group input[type=number]::-webkit-outer-spin-button{-webkit-appearance:none;margin:0}.input-group input[type=number]{-moz-appearance:textfield;-webkit-appearance:textfield;appearance:textfield}.input-group label{display:block;font-size:.8125rem;font-weight:var(--weight-medium);color:var(--text-secondary);margin-bottom:6px;letter-spacing:var(--letter-spacing-tight);transition:color var(--transition-fast)}.input-group:focus-within label{color:var(--accent)}.input-group input,.input-group select,.geometry-dropdown-compact{width:100%;height:40px;padding:0 var(--space-4);font-size:.9375rem;font-family:inherit;font-feature-settings:"tnum";font-weight:400;letter-spacing:var(--letter-spacing-base);color:var(--text);background:var(--bg-subtle);border:1px solid var(--border);border-radius:var(--radius-sm);transition:var(--transition-fast)}.input-group input::placeholder{color:var(--text-subtle)}.input-group input:hover,.input-group select:hover,.geometry-dropdown-compact:hover{border-color:var(--border-strong);background:var(--bg)}.input-group input:focus,.input-group select:focus,.geometry-dropdown-compact:focus{outline:2px solid var(--accent);outline-offset:2px;border-color:var(--accent);box-shadow:0 0 0 4px var(--accent-subtle),0 4px 12px -4px var(--accent-muted);background:var(--bg)}.input-group small{display:block;font-size:.75rem;color:var(--text-muted);margin-top:6px;letter-spacing:-.01em}.input-warning{display:flex;align-items:center;gap:4px;font-size:.7rem;color:var(--warning);margin-top:4px;padding:4px 8px;background:var(--warning-muted);border-radius:var(--radius-sm);animation:fadeInWarning .2s ease-out}.input-warning:before{content:"⚠";font-size:.8rem}@keyframes fadeInWarning{0%{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}.input-group input.has-warning{border-color:var(--warning);border-left:3px solid var(--warning);padding-left:calc(var(--space-4) - 2px)}.input-group select,.geometry-dropdown-compact{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23737373' d='M6 8L2 4h8z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center;background-size:12px;padding-right:32px;cursor:pointer;-webkit-appearance:none;-moz-appearance:none;appearance:none}.input-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:4px}.radio-button-group{display:flex;gap:0;margin-top:8px;background:var(--bg-subtle);border-radius:var(--radius-sm);padding:3px;border:1px solid var(--border-subtle)}.radio-option{flex:1;position:relative}.radio-option input[type=radio]{position:absolute;opacity:0;pointer-events:none}.radio-label{display:flex;align-items:center;justify-content:center;gap:6px;height:32px;padding:0 var(--space-3);font-size:.8125rem;font-weight:500;color:var(--text-secondary);background:transparent;border:none;border-radius:calc(var(--radius-sm) - 2px);cursor:pointer;transition:all var(--transition-fast)}.radio-label:hover{color:var(--text);background:var(--bg-muted)}.radio-option input[type=radio]:checked+.radio-label{color:var(--text);background:var(--bg);box-shadow:var(--shadow-sm)}.radio-option input[type=radio]:focus-visible+.radio-label{box-shadow:var(--shadow-focus)}.radio-icon{font-size:.875rem;line-height:1;opacity:.8}.segmented-control{display:flex;background:var(--bg-subtle);padding:3px;border-radius:var(--radius-sm);border:1px solid var(--border-subtle)}.segment-btn{border:none;background:transparent;padding:6px 12px;font-size:.75rem;font-family:inherit;font-weight:var(--weight-medium);color:var(--text-secondary);letter-spacing:var(--letter-spacing-tight);border-radius:calc(var(--radius-sm) - 2px);cursor:pointer;transition:all var(--transition-fast)}.segment-btn:hover{color:var(--text);background:var(--bg-muted)}.segment-btn:active{transform:scale(.96)}.segment-btn.active{background:var(--bg);color:var(--text);box-shadow:var(--shadow-sm),0 0 12px -2px var(--accent-subtle);font-weight:550}[data-theme=dark] .segmented-control{background:var(--gray-800);border-color:var(--gray-700)}[data-theme=dark] .segment-btn{color:var(--gray-400)}[data-theme=dark] .segment-btn:hover{color:var(--gray-200);background:var(--gray-700)}[data-theme=dark] .segment-btn.active{background:var(--accent);color:#fff;box-shadow:0 0 12px -2px var(--accent)}.segment-btn:focus-visible{box-shadow:var(--shadow-focus);z-index:1}.segmented-control-sm{padding:2px}.segment-btn-sm{padding:3px 8px;font-size:.6875rem}.toggle-container{display:flex;align-items:center;gap:var(--space-3)}.toggle-switch{position:relative;width:44px;height:24px;flex-shrink:0}.toggle-switch input{opacity:0;width:0;height:0}.toggle-slider{position:absolute;cursor:pointer;top:0;right:0;bottom:0;left:0;background:var(--bg-muted);border-radius:12px;transition:background var(--transition);border:1px solid var(--border)}.toggle-slider:before{content:"";position:absolute;width:18px;height:18px;left:2px;top:50%;transform:translateY(-50%);background:var(--toggle-knob-color);border-radius:50%;transition:left var(--transition);box-shadow:var(--toggle-knob-shadow)}input:checked+.toggle-slider{background:var(--success);border-color:var(--success)}input:checked+.toggle-slider:before{left:calc(100% - 20px)}.toggle-switch input:focus-visible+.toggle-slider{box-shadow:var(--shadow-focus)}.advanced-toggle-group{margin-top:var(--space-4);padding-top:var(--space-4);border-top:1px solid var(--border-subtle)}.toggle-label-text{font-size:.8125rem}.geometry-panel{display:none}.geometry-panel.active{display:block}#geometry-dimensions{margin-top:6px;margin-bottom:2px}#geometry-dimensions .geometry-panel{animation:panelFadeIn .15s var(--ease-out)}@keyframes panelFadeIn{0%{opacity:0;transform:translateY(4px)}to{opacity:1;transform:translateY(0)}}#geometry-dimensions .thin-film-info,#geometry-dimensions .infinite-rod-info{padding:var(--space-3) 0;text-align:center}#geometry-dimensions .limit-case-header{font-size:.9375rem;font-weight:600;color:var(--text);margin-bottom:4px}#geometry-dimensions .limit-case-description{font-size:.8125rem;color:var(--text-muted);margin:0}.result{color:var(--text);line-height:1.5;min-height:200px;transition:opacity var(--transition-slow)}.result.is-updating{opacity:.95}.section-header-compact{color:var(--text-secondary);font-size:.75rem;font-weight:var(--weight-bold);letter-spacing:.05em;text-transform:uppercase;border-bottom:1px solid var(--border-subtle);padding-bottom:6px;margin-bottom:12px;margin-top:var(--space-4)}.demagnetization-summary{background:var(--bg-subtle);border:1px solid var(--border);border-radius:var(--radius-md);padding:var(--space-3);margin-bottom:10px}.demag-values-enhanced{display:flex;justify-content:space-around}.demag-item-enhanced{text-align:center;flex:1}.demag-item-enhanced strong{display:block;font-size:.875rem;font-weight:500;color:var(--text);margin-bottom:4px}.demag-value-clickable{display:inline-block;font-size:1.1rem;font-weight:600;font-family:inherit;font-feature-settings:"tnum";color:var(--text);cursor:pointer;padding:4px 8px;border-radius:var(--radius-sm);transition:background var(--transition-fast)}.demag-value-clickable:hover{background:var(--bg-muted)}.axis-label-small{display:inline-flex;align-items:center;gap:4px;font-size:.6875rem;font-weight:700;text-transform:uppercase;letter-spacing:.03em;margin-top:6px;padding:4px 10px;border-radius:12px}.axis-label-small.easy-axis:before{content:"▼";font-size:.6em}.axis-label-small.hard-axis:before{content:"▲";font-size:.6em}.axis-label-small.intermediate-axis:before{content:"◆";font-size:.55em}.axis-label-small.easy-axis{color:#166534;background:#dcfce7;border:1px solid #86efac}.axis-label-small.hard-axis{color:#991b1b;background:#fee2e2;border:1px solid #fca5a5}.axis-label-small.intermediate-axis{color:#92400e;background:#fef3c7;border:1px solid #fcd34d}[data-theme=dark] .axis-label-small.easy-axis{color:#86efac;background:#86efac26;border-color:#86efac4d}[data-theme=dark] .axis-label-small.hard-axis{color:#fca5a5;background:#fca5a526;border-color:#fca5a54d}[data-theme=dark] .axis-label-small.intermediate-axis{color:#fcd34d;background:#fcd34d26;border-color:#fcd34d4d}.critical-properties-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--space-4);margin-bottom:var(--space-4)}.property-card{background:var(--card-bg);border:1px solid var(--card-border);border-radius:var(--radius-lg);padding:var(--space-5);transition:var(--transition);position:relative;overflow:hidden;box-shadow:var(--shadow-card),var(--surface-glass);animation:cardFadeIn .4s var(--ease-out) backwards}@keyframes cardFadeIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.is-updating .property-card{animation:none}.property-card:hover{border-color:var(--accent-light);background:var(--card-hover-bg);transform:translateY(-2px);box-shadow:var(--shadow-card-hover),var(--shadow-accent-glow)}.property-card:hover .property-symbol{color:var(--accent)}.property-card.result-updated,.is-updating .property-card.result-updated{animation:resultPulse .6s var(--ease-out)}.result-updated .main-value{animation:valueHighlight .8s var(--ease-out)}@keyframes resultPulse{0%{box-shadow:var(--shadow-card),0 0 0 0 var(--accent-muted)}40%{box-shadow:var(--shadow-card),0 0 0 4px var(--accent-muted)}to{box-shadow:var(--shadow-card),0 0 0 0 transparent}}@keyframes valueHighlight{0%{background-color:var(--accent-subtle);border-radius:var(--radius-sm)}to{background-color:transparent}}.demagnetization-summary.result-updated,.energy-breakdown-table.result-updated{animation:resultPulse .6s var(--ease-out)}.property-card:nth-child(1){animation-delay:0ms}.property-card:nth-child(2){animation-delay:60ms}.property-card:nth-child(3){animation-delay:.12s}.property-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}.property-header h5{font-size:.9rem;font-weight:600;color:var(--text-secondary);margin:0}.property-symbol{font-size:1rem;font-weight:500;color:var(--text-muted);font-style:italic;font-family:inherit;transition:color var(--transition-fast)}.property-value{text-align:center;padding:4px 0}.main-value{display:inline;font-size:1.1rem;font-weight:400;font-feature-settings:"tnum";color:var(--text)}.unit{display:inline;font-size:1rem;font-weight:400;color:var(--text-secondary);margin-left:4px}.property-formula{background:var(--bg-subtle);border:2px solid var(--border-subtle);border-radius:var(--radius-sm);padding:4px 10px;text-align:center;font-size:1.1rem;margin-top:16px}.property-value-clickable{cursor:pointer;transition:all var(--transition-fast);padding:3px 6px;margin:-2px -6px;border-radius:var(--radius-xs);display:inline-block}.property-value-clickable:hover{background:var(--accent-subtle);color:var(--accent)}.property-value-clickable:active{transform:scale(.96);background:var(--accent-muted)}.preferred-direction{display:inline-block;font-size:.9rem;font-weight:600;padding:2px 8px;border-radius:4px;margin-top:4px;color:var(--white);white-space:nowrap}.preferred-direction.pma,.preferred-direction.ipa{background:transparent;color:var(--text);padding-left:0}.effective-anisotropy-summary{margin-top:0}.energy-breakdown-table{margin:0;overflow-x:auto}.energy-table{width:100%;border-collapse:collapse;font-size:.875rem;background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-md);overflow:hidden}.energy-table thead{background:var(--bg-muted)}.energy-table th{padding:6px 8px;text-align:center;font-weight:600;font-size:.75rem;text-transform:uppercase;letter-spacing:.03em;color:var(--text);border-bottom:1px solid var(--border);background:var(--bg-subtle)}.energy-table td{padding:10px 12px;text-align:center;border-bottom:1px solid var(--border);font-family:inherit;font-feature-settings:"tnum";font-size:.9rem}.energy-table tbody tr:last-child td{border-bottom:none}.energy-table tbody tr:hover{background:var(--bg-subtle)}.energy-state-description{display:block;font-size:.6875rem;color:var(--text-muted);font-weight:400;margin-top:2px}.energy-axis-cell{font-weight:600;color:var(--text)}.energy-value-cell{font-family:inherit;font-feature-settings:"tnum";font-size:.9rem;color:var(--text-secondary)}.energy-total-cell{font-family:inherit;font-feature-settings:"tnum";font-weight:600;font-size:.9rem;color:var(--text);background:var(--bg-muted)}.theory-collapsible{margin-top:var(--space-2);background:var(--bg-subtle);border:1px solid var(--border);border-radius:var(--radius-md);overflow:hidden;max-width:100%}.theory-collapsible.collapsed .theory-content{display:none}.theory-collapsible.collapsed .theory-toggle{transform:rotate(-90deg)}.theory-header{cursor:pointer;padding:var(--space-3) var(--space-4);display:flex;justify-content:space-between;align-items:center;-webkit-user-select:none;user-select:none;background:var(--bg);transition:background var(--transition)}.theory-header:hover{background:var(--bg-muted)}.theory-title{font-size:.8125rem;font-weight:600;color:var(--text)}.theory-toggle{font-size:.75rem;color:var(--text-muted);transition:transform var(--transition)}.theory-content{padding:var(--space-4);overflow-x:auto;max-width:100%;word-break:break-word}.theory-section{margin-bottom:var(--space-4)}.theory-section:last-child{margin-bottom:0}.theory-subtitle{font-size:.875rem;font-weight:600;color:var(--text);margin:0 0 8px}.theory-text{font-size:.875rem;color:var(--text-secondary);line-height:1.6}.theory-formula-box{padding:var(--space-3) var(--space-4);background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-sm);font-size:.875rem;overflow-x:auto;max-width:100%}.theory-formula-grid{display:grid;grid-template-columns:auto 1fr;gap:6px 12px;align-items:baseline}.theory-formula-grid strong{color:var(--text);font-size:.8125rem}.theory-list{margin:8px 0 0 20px;padding:0;font-size:.875rem}.theory-list li{margin-bottom:4px}.theory-highlight{padding:8px 12px;border-radius:var(--radius-sm);margin:8px 0;font-size:.875rem}.theory-highlight.blue{background:var(--accent-muted);border-left:2px solid var(--accent)}.theme-toggle{display:flex;align-items:center;gap:8px;height:36px;padding:0 var(--space-4);font-size:.8125rem;font-weight:var(--weight-medium);color:var(--text-secondary);background:var(--bg-subtle);border:1px solid var(--border);border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-fast);flex-shrink:0;min-width:140px;letter-spacing:var(--letter-spacing-tight)}.theme-toggle:hover{color:var(--text);background:var(--bg-muted);border-color:var(--border-strong);transform:translateY(-2px);box-shadow:var(--shadow-md)}.theme-toggle:active{transform:translateY(1px) scale(.97);box-shadow:inset 0 2px 4px #0000001a}.theme-toggle:focus-visible{box-shadow:var(--shadow-focus);border-color:var(--accent)}.theme-toggle.share-copied{background:var(--success);border-color:var(--success);color:#fff;animation:shareCopiedPulse .3s var(--ease-spring)}.theme-toggle.share-copied:hover{background:var(--success);border-color:var(--success);transform:none;box-shadow:var(--shadow-sm)}.theme-toggle.share-copied .theme-toggle-icon{color:#fff}@keyframes shareCopiedPulse{0%{transform:scale(1)}50%{transform:scale(1.05)}to{transform:scale(1)}}.theme-toggle-icon{width:16px;height:16px;flex-shrink:0;opacity:.8}.toast-container{position:fixed;bottom:var(--space-6);left:50%;transform:translate(-50%);z-index:10000;display:flex;flex-direction:column;gap:var(--space-3);pointer-events:none}.toast{display:flex;align-items:center;gap:var(--space-3);padding:var(--space-3) var(--space-5);background:var(--gray-900);color:var(--gray-100);border-radius:var(--radius-lg);box-shadow:0 4px 12px #00000026,0 16px 32px #0003;font-size:.875rem;font-weight:500;pointer-events:auto;animation:toastSlideIn .3s var(--ease-spring) forwards;border:1px solid rgba(255,255,255,.1)}.toast.toast-exit{animation:toastSlideOut .2s var(--ease-out) forwards}.toast-icon{width:18px;height:18px;flex-shrink:0}.toast-success{background:linear-gradient(135deg,var(--gray-900) 0%,#064e3b 100%);border-color:var(--success)}.toast-success .toast-icon{color:var(--success)}.toast-error{background:linear-gradient(135deg,var(--gray-900) 0%,#7f1d1d 100%);border-color:var(--danger)}.toast-error .toast-icon{color:var(--danger)}.toast-info{background:linear-gradient(135deg,var(--gray-900) 0%,#1e3a5f 100%);border-color:var(--accent)}.toast-info .toast-icon{color:var(--accent-light)}@keyframes toastSlideIn{0%{opacity:0;transform:translateY(16px) scale(.95)}to{opacity:1;transform:translateY(0) scale(1)}}@keyframes toastSlideOut{0%{opacity:1;transform:translateY(0) scale(1)}to{opacity:0;transform:translateY(-8px) scale(.95)}}[data-theme=dark] .toast{background:var(--gray-800);border-color:#ffffff1a}[data-theme=dark] .toast-success{background:linear-gradient(135deg,var(--gray-800) 0%,#064e3b 100%)}[data-theme=dark] .toast-error{background:linear-gradient(135deg,var(--gray-800) 0%,#7f1d1d 100%)}[data-theme=dark] .toast-info{background:linear-gradient(135deg,var(--gray-800) 0%,#1e3a5f 100%)}.tooltip-container{position:relative;display:inline-flex;align-items:center;margin-left:8px;vertical-align:middle}.tooltip-icon{display:inline-flex;align-items:center;justify-content:center;width:15px;height:15px;border-radius:50%;background:var(--bg-subtle);color:var(--text-muted);font-size:9px;font-weight:500;font-family:inherit;text-transform:none;cursor:help;border:1px solid var(--border-subtle);transition:all var(--transition-fast);flex-shrink:0}.tooltip-icon:hover{background:var(--accent-muted);color:var(--accent);border-color:var(--accent)}.tooltip-text{visibility:hidden;width:260px;max-width:90vw;background-color:var(--gray-900);color:var(--gray-100);text-align:left;text-transform:none;border-radius:var(--radius-md);padding:var(--space-3) var(--space-4);position:absolute;z-index:100;bottom:calc(100% + 10px);left:50%;transform:translate(-50%) translateY(4px);opacity:0;transition:opacity var(--transition-fast),transform var(--transition-fast);font-size:.8125rem;font-weight:400;line-height:1.6;letter-spacing:-.005em;box-shadow:0 4px 6px -1px #0000001a,0 10px 15px -3px #00000026,0 20px 25px -5px #0000001a;pointer-events:none;border:1px solid rgba(255,255,255,.1)}.tooltip-text:after{content:"";position:absolute;top:100%;left:50%;margin-left:-6px;border-width:6px;border-style:solid;border-color:var(--gray-900) transparent transparent transparent}.tooltip-container:hover .tooltip-text{visibility:visible;opacity:1;transform:translate(-50%) translateY(0)}.MathJax{color:inherit!important}.MathJax_Display{margin:.4em 0!important;overflow-x:auto}mjx-container{font-size:100%!important}@media(max-width:600px){.tooltip-text{position:fixed;left:50%;bottom:20px;transform:translate(-50%) translateY(0);width:90%;max-width:400px}.tooltip-text:after{display:none}}.equation-source-container{margin-top:16px;padding-top:12px;border-top:1px solid var(--border-subtle);width:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px}.equation-citation{font-size:.75rem;color:var(--text-secondary);line-height:1.4;text-align:center;width:100%}.equation-citation:hover{color:var(--accent)}.citation-doi{font-family:inherit;font-size:.7rem;color:var(--text-muted);margin-left:4px}.visualizer-card,.equation-card,.demag-factors-card{position:relative;background:var(--card-bg);border-radius:var(--radius-xl);border:1px solid var(--card-border);transition:transform var(--transition),box-shadow var(--transition),border-color var(--transition);box-shadow:var(--shadow-card)}.visualizer-card{overflow:hidden}.equation-card,.demag-factors-card{padding:var(--space-5);display:flex;flex-direction:column;justify-content:center;align-items:center;min-height:100%}.visualizer-card:hover,.equation-card:hover,.demag-factors-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-card-hover),var(--shadow-accent-glow);border-color:var(--accent-muted)}.demag-row{text-align:center;display:flex;justify-content:center;align-items:center;gap:6px}.demag-label{font-weight:550;font-size:1.1em;color:var(--text)}.demag-values-overlay{position:absolute;bottom:12px;left:12px;display:flex;flex-direction:column;gap:4px;background:rgba(var(--card-bg-rgb),.85);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);padding:12px;border-radius:var(--radius-lg);border:1px solid var(--card-border);box-shadow:var(--shadow-sm);z-index:10;min-width:120px}.viz-tabs{display:flex;gap:4px;background:var(--bg-subtle);padding:3px;border-radius:var(--radius-sm);border:1px solid var(--border-subtle)}.viz-tab{border:none;background:transparent;padding:4px 10px;font-size:11px;font-family:inherit;font-weight:var(--weight-medium);color:var(--text-secondary);letter-spacing:var(--letter-spacing-tight);border-radius:calc(var(--radius-sm) - 2px);cursor:pointer;transition:all var(--transition-fast)}.viz-tab:hover{color:var(--text);background:var(--bg-muted)}.viz-tab.active{background:var(--accent);color:#fff;box-shadow:0 0 8px -2px var(--accent)}.viz-view{width:100%;height:100%}.field-controls{display:flex;gap:4px;background:rgba(var(--card-bg-rgb),.9);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);padding:4px;border-radius:var(--radius-sm);border:1px solid var(--border-subtle)}.plane-btn{border:none;background:transparent;padding:3px 8px;font-size:10px;font-family:inherit;font-weight:var(--weight-bold);color:var(--text-secondary);letter-spacing:.02em;border-radius:calc(var(--radius-sm) - 2px);cursor:pointer;transition:all var(--transition-fast)}.plane-btn:hover{color:var(--text);background:var(--bg-muted)}.plane-btn.active{background:var(--accent);color:#fff}[data-theme=dark] .viz-tabs{background:var(--gray-800);border-color:var(--gray-700)}[data-theme=dark] .viz-tab{color:var(--gray-400)}[data-theme=dark] .viz-tab:hover{color:var(--gray-200);background:var(--gray-700)}[data-theme=dark] .field-controls{background:#1a1a2ee6;border-color:var(--gray-700)}[data-theme=dark] .plane-btn{color:var(--gray-400)}[data-theme=dark] .plane-btn:hover{color:var(--gray-200);background:var(--gray-700)}@media print{.header-actions,.theme-toggle,.input-sidebar,.visualizer-card,.toast-container,.theory-toggle,.share-button{display:none!important}body{background:#fff!important;color:#000!important}.container{max-width:100%!important;padding:0!important;margin:0!important}.main-layout,.main-content-grid{display:block!important}.calculator-main{padding:0!important}.equation-card,.property-card{border:1px solid #eee!important;box-shadow:none!important;background:#fff!important;page-break-inside:avoid}.calculator-section{box-shadow:none!important;border:1px solid #eee!important;margin-bottom:20px!important}.theory-collapsible.collapsed .theory-content{display:block!important}.sidebar-section-title{color:#000!important;border-bottom:2px solid black!important}}@media print{.theme-toggle,.advanced-toggle-group{display:none}*{animation:none!important;transition:none!important}body{background:#fff;color:#000;font-size:10pt}.container{max-width:100%;padding:0}.main-content-grid{display:block}.input-sidebar{position:static;page-break-after:always;background:#f5f5f5;border:1px solid #ddd}.calculator-section,.header{box-shadow:none;border:1px solid #ddd;background:#fff}.property-card{break-inside:avoid;box-shadow:none;border:1px solid #ddd}a{text-decoration:underline;color:#000}a[href^=http]:after{content:" (" attr(href) ")";font-size:.8em;color:#666}a[href^=mailto]:after{content:none}}