:root{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,system-ui,sans-serif;line-height:1.6;font-weight:400;color:#f8fafc;background:linear-gradient(135deg,#0f172a,#1e293b,#334155);min-height:100vh;--primary-color: #60a5fa;--secondary-color: #a78bfa;--accent-color: #f472b6;--text-primary: #f8fafc;--text-secondary: #cbd5e1;--text-muted: #94a3b8;--background-dark: #0f172a;--background-card: #1e293b;--background-elevated: #334155;--background-input: #475569;--border-light: #334155;--border-medium: #475569;--border-accent: #64748b;--shadow-sm: 0 1px 2px 0 rgb(0 0 0 / .3);--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .4), 0 2px 4px -2px rgb(0 0 0 / .4);--shadow-lg: 0 20px 25px -5px rgb(0 0 0 / .4), 0 10px 10px -5px rgb(0 0 0 / .2);--shadow-glow: 0 0 20px rgb(96 165 250 / .2);--border-radius: 16px;--border-radius-sm: 12px;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh;background:inherit}h1,h2,h3,h4,h5,h6{color:var(--text-primary);font-weight:600;line-height:1.25;margin:0 0 .5em}h1{font-size:2.5rem;font-weight:700;background:linear-gradient(135deg,var(--primary-color),var(--secondary-color),var(--accent-color));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;text-align:center;margin-bottom:1rem;text-shadow:0 0 30px rgba(96,165,250,.3)}h2{font-size:1.5rem;color:var(--text-primary)}p{color:var(--text-secondary);margin:0 0 1rem}a{color:var(--primary-color);text-decoration:none;font-weight:500;transition:color .2s ease}a:hover{color:var(--secondary-color)}button{font-family:inherit;font-size:.875rem;font-weight:500;line-height:1;border:none;border-radius:var(--border-radius-sm);padding:.625rem 1.25rem;cursor:pointer;transition:all .3s ease;background:linear-gradient(135deg,var(--primary-color),var(--secondary-color));color:var(--text-primary);box-shadow:var(--shadow-md);position:relative;overflow:hidden}button:hover{box-shadow:var(--shadow-lg),var(--shadow-glow);transform:translateY(-2px)}button:active{transform:translateY(-1px);box-shadow:var(--shadow-md)}button:focus,button:focus-visible{outline:2px solid var(--primary-color);outline-offset:2px}button:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.1),transparent);transition:left .5s}button:hover:before{left:100%}button.secondary{background:var(--background-card);color:var(--text-secondary);border:1px solid var(--border-medium)}button.secondary:hover{background:var(--background-elevated);border-color:var(--border-accent);color:var(--text-primary)}input[type=checkbox]{accent-color:var(--primary-color);width:1.125rem;height:1.125rem}.card{background:var(--background-card);border-radius:var(--border-radius);padding:1.5rem;box-shadow:var(--shadow-lg);border:1px solid var(--border-light);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}