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1023px){.stats-grid{grid-template-columns:repeat(2,1fr)}}@media (min-width: 1024px){.stats-grid{grid-template-columns:repeat(4,1fr)}}:focus-visible{outline:2px solid var(--color-primary-500);outline-offset:2px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border-width:0}@media (prefers-reduced-motion: reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}[data-theme=dark]{--color-primary-50: #00305e;--color-primary-100: #00427e;--color-primary-200: #0055a3;--color-primary-300: #0071e3;--color-primary-400: #2997ff;--color-primary-500: #4db4ff;--color-primary-600: #66c0ff;--color-primary-700: #a2d9ff;--color-primary-800: #d0ecff;--color-primary-900: #e8f4ff;--color-secondary-50: #0c0c0d;--color-secondary-100: #1d1d1f;--color-secondary-200: #2c2c2e;--color-secondary-300: #3a3a3c;--color-secondary-400: #48484a;--color-secondary-500: #636366;--color-secondary-600: #86868b;--color-secondary-700: #a1a1a6;--color-secondary-800: #c7c7cc;--color-secondary-900: #e5e5ea;--color-bg-primary: #000000;--color-bg-secondary: #1d1d1f;--color-bg-tertiary: #2c2c2e;--color-text-primary: #f5f5f7;--color-text-secondary: #c7c7cc;--color-text-tertiary: #86868b;--color-text-placeholder: #636366;--color-border: #3a3a3c;--color-border-light: #2c2c2e;--color-border-dark: #48484a;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .5);--shadow-md: 0 8px 24px rgba(0, 0, 0, .5);--shadow-lg: 0 12px 32px rgba(0, 0, 0, .6);--shadow-xl: 0 20px 50px rgba(0, 0, 0, .7)}[data-theme=dark] body{background-color:var(--color-bg-primary);color:var(--color-text-primary)}[data-theme=dark] .card{background-color:var(--color-bg-secondary);border-color:var(--color-border)}[data-theme=dark] .card:hover{box-shadow:var(--shadow-lg)}[data-theme=dark] .form-input{background-color:var(--color-bg-tertiary);border-color:var(--color-border);color:var(--color-text-primary)}[data-theme=dark] .form-input:focus{border-color:var(--color-primary-400);box-shadow:0 0 0 3px #60a5fa33}[data-theme=dark] .form-label{color:var(--color-text-secondary)}[data-theme=dark] .btn-secondary{background-color:var(--color-bg-tertiary);color:var(--color-text-primary);border-color:var(--color-border)}[data-theme=dark] .btn-secondary:hover{background-color:var(--color-border)}[data-theme=dark] .table th{background-color:var(--color-bg-secondary);color:var(--color-text-secondary);border-bottom-color:var(--color-border)}[data-theme=dark] .table td{color:var(--color-text-primary);border-bottom-color:var(--color-border-light)}[data-theme=dark] .table tr:hover{background-color:var(--color-bg-tertiary)}[data-theme=dark] .modal-overlay{background-color:#000000b3}[data-theme=dark] .modal-container{background-color:var(--color-bg-secondary);color:var(--color-text-primary)}[data-theme=dark] .empty-state-icon{color:var(--color-text-placeholder)}[data-theme=dark] .empty-state-title{color:var(--color-text-primary)}[data-theme=dark] .empty-state-description{color:var(--color-text-tertiary)}[data-theme=dark] .loading-spinner{border-color:var(--color-border);border-top-color:var(--color-primary-400)}[data-theme=dark] .skeleton{background:linear-gradient(90deg,var(--color-bg-tertiary) 25%,var(--color-border) 50%,var(--color-bg-tertiary) 75%)}.theme-toggle{position:fixed;bottom:24px;right:24px;width:48px;height:48px;border-radius:50%;background:linear-gradient(135deg,var(--color-primary-500) 0%,var(--color-primary-700) 100%);color:#fff;border:none;cursor:pointer;font-size:1.5rem;display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-lg);transition:all var(--transition-normal);z-index:1000}.theme-toggle:hover{transform:scale(1.1);box-shadow:var(--shadow-xl)}[data-theme=dark] .theme-toggle{background:linear-gradient(135deg,#f59e0b,#d97706)}.design-system-demo{min-height:100vh;background:var(--color-bg-primary);color:var(--color-text-primary)}.demo-header{padding:48px 24px;background:linear-gradient(135deg,var(--color-primary-500) 0%,var(--color-primary-700) 100%);color:#fff;text-align:center}.demo-header h1{font-size:2.5rem;font-weight:700;margin-bottom:12px}.demo-header p{font-size:1.1rem;opacity:.95;margin-bottom:24px}.demo-content{max-width:1400px;margin:0 auto;padding:32px 24px}.demo-section{margin-bottom:48px}.demo-section h2{font-size:1.75rem;font-weight:600;color:var(--color-text-primary);margin-bottom:24px;padding-bottom:12px;border-bottom:2px solid var(--color-border)}.color-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:24px}.color-group 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th{padding:12px;text-align:left;font-weight:600;color:var(--color-text-secondary);background:var(--color-bg-tertiary);border-bottom:2px solid var(--color-border)}.table td{padding:12px;border-bottom:1px solid var(--color-border-light);color:var(--color-text-primary)}.table tr:hover{background:var(--color-bg-tertiary)}.badge-demo{display:flex;gap:8px;flex-wrap:wrap}.loading-demo{display:flex;flex-direction:column;gap:24px;align-items:center}@media (max-width: 768px){.demo-header h1{font-size:1.75rem}.color-grid,.card-grid{grid-template-columns:1fr}.button-row{flex-direction:column;align-items:stretch}}:root{--color-brand-primary: #0071e3;--color-brand-primary-light: #2997ff;--color-brand-primary-dark: #0066cc;--color-brand-blue: #0071e3;--color-brand-blue-light: #2997ff;--color-brand-blue-dark: #0066cc;--color-success: #00b96b;--color-warning: #ff8800;--color-error: #ef4444;--color-info: #2997ff;--color-text-primary: #1d1d1f;--color-text-secondary: #6e6e73;--color-text-placeholder: #a1a1a6;--color-border: #d2d2d7;--color-bg-page: #f5f5f7;--color-bg-card: #ffffff;--spacing-xs: 4px;--spacing-sm: 8px;--spacing-md: 12px;--spacing-lg: 16px;--spacing-xl: 24px;--radius-sm: 8px;--radius-md: 8px;--radius-lg: 9999px;--font-size-xs: 10px;--font-size-sm: 12px;--font-size-md: 14px;--font-size-lg: 16px;--font-size-xl: 20px;--font-size-xxl: 24px}@media screen and (max-width: 400px){.MuiCard-root,.MuiButton-root{border-radius:var(--radius-md)!important}.MuiTypography-h6{font-size:var(--font-size-lg)!important}.MuiCardContent-root{padding:var(--spacing-sm)!important}}@media screen and (max-width: 375px){.MuiTextField-root{font-size:var(--font-size-sm)!important}.MuiChip-root{font-size:var(--font-size-xs)!important;height:22px!important}}@supports (padding-bottom: env(safe-area-inset-bottom)){.fixed-bottom{padding-bottom:calc(var(--spacing-lg) + 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