:root{--primary: #1a365d;--primary-light: #2a4365;--primary-dark: #102a4e;--secondary: #d69e2e;--accent: #e53e3e;--bg-body: #f7fafc;--bg-card: #ffffff;--text-main: #2d3748;--text-muted: #718096;--text-light: #f7fafc;--border-color: #cbd5e0;--font-family: "Inter", system-ui, -apple-system, sans-serif;--h1: 2.5rem;--h2: 2rem;--h3: 1.75rem;--body: 1rem;--small: .875rem;--spacing-xs: .5rem;--spacing-sm: 1rem;--spacing-md: 2rem;--spacing-lg: 4rem;--spacing-xl: 8rem;--radius: 12px;--shadow-sm: 0 1px 3px rgba(0, 0, 0, .12);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -1px rgba(0, 0, 0, .06);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1), 0 4px 6px -2px rgba(0, 0, 0, .05);--transition: all .3s ease}@media(max-width:768px){:root{--h1: 2rem;--h2: 1.75rem;--h3: 1.5rem;--spacing-lg: 2.5rem;--spacing-xl: 4rem}}[data-theme=dark]{--primary: #63b3ed;--primary-light: #90cdf4;--primary-dark: #2c5282;--secondary: #f6ad55;--bg-body: #1a202c;--bg-card: #2d3748;--text-main: #f7fafc;--text-muted: #a0aec0;--text-light: #1a202c;--border-color: #4a5568;--shadow-sm: 0 1px 3px rgba(0, 0, 0, .4);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .4);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .5)}html{font-size:62.5%}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-family);background-color:var(--bg-body);color:var(--text-main);line-height:1.6}h1,h2,h3,h4,h5,h6{color:var(--primary);line-height:1.2;margin-bottom:var(--spacing-sm)}h1{font-size:var(--h1);font-weight:800}h2{font-size:var(--h2);font-weight:700}h3{font-size:var(--h3);font-weight:600}a{text-decoration:none;color:inherit;transition:var(--transition)}ul{list-style:none}button{cursor:pointer;font-family:inherit;border:none;background:none}.app-container{display:flex;flex-direction:column;min-height:100vh}.main-content{flex:1}.container{max-width:1200px;margin:0 auto;padding:0 var(--spacing-md)}@media(max-width:480px){.container{padding:0 var(--spacing-sm)}}.section{padding:var(--spacing-lg) 0}.btn{display:inline-flex;align-items:center;justify-content:center;padding:.75rem 1.5rem;border-radius:var(--radius);font-weight:600;transition:var(--transition);gap:.5rem}.btn-primary{background-color:var(--primary);color:#fff}.btn-primary:hover{background-color:var(--primary-light);transform:translateY(-2px);box-shadow:var(--shadow-md)}.btn-secondary{background-color:var(--secondary);color:var(--primary)}.btn-secondary:hover{filter:brightness(1.1);transform:translateY(-2px)}.btn-outline{border:2px solid var(--primary);color:var(--primary)}.btn-outline:hover{background-color:var(--primary);color:#fff}.btn-sm{padding:.5rem 1rem;font-size:.9rem}.btn-lg{padding:1rem 2rem;font-size:1.1rem}.card{background:var(--bg-card);border-radius:var(--radius);padding:var(--spacing-md);box-shadow:var(--shadow-sm);transition:var(--transition)}.card:hover{box-shadow:var(--shadow-md)}.grid{display:grid;gap:var(--spacing-md)}.two-col-grid{grid-template-columns:repeat(2,1fr)}.three-col-grid{grid-template-columns:repeat(3,1fr)}.four-col-grid{grid-template-columns:repeat(4,1fr)}@media(max-width:1024px){.three-col-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:768px){.two-col-grid,.three-col-grid,.four-col-grid{grid-template-columns:1fr}}.flex{display:flex;gap:var(--spacing-sm)}.items-center{align-items:center}.justify-between{justify-content:space-between}.justify-center{justify-content:center}.flex-col{flex-direction:column}.text-center{text-align:center}.text-primary{color:var(--primary)}.text-secondary{color:var(--secondary)}.page-header{background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);color:#fff;padding:var(--spacing-lg) 0;text-align:center;margin-bottom:var(--spacing-md)}.page-header h1{color:#fff;margin-bottom:.5rem}.page-header p{font-size:1.25rem;opacity:.9;max-width:600px;margin:0 auto;padding:0 var(--spacing-sm)}@media(max-width:768px){.page-header{padding:3rem 0}.page-header p{font-size:1.1rem}}.form-group{margin-bottom:1rem}.form-control{width:100%;padding:.75rem;border:1px solid #cbd5e0;border-radius:var(--radius);font-family:inherit;transition:var(--transition)}.form-control:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #1a365d1a}@keyframes fadeIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.animate-fade-in{animation:fadeIn .6s ease-out forwards}#root{max-width:1280px;margin:0 auto;padding:2rem;text-align:center}.logo{height:6em;padding:1.5em;will-change:filter;transition:filter .3s}.logo:hover{filter:drop-shadow(0 0 2em #646cffaa)}.logo.react:hover{filter:drop-shadow(0 0 2em #61dafbaa)}@keyframes logo-spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@media(prefers-reduced-motion:no-preference){a:nth-of-type(2) .logo{animation:logo-spin infinite 20s linear}}.card{padding:2em}.read-the-docs{color:#888}