*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--bg: #f8fafc;--surface: #ffffff;--text: #1e293b;--text2: #64748b;--primary: #2563eb;--primary-hover: #1d4ed8;--border: #e2e8f0;--radius: 16px;--radius-sm: 10px;--shadow: 0 1px 3px rgba(0,0,0,.08);--shadow-lg: 0 4px 12px rgba(0,0,0,.1)}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text);line-height:1.5;-webkit-font-smoothing:antialiased;min-height:100dvh}button{font:inherit;cursor:pointer;border:none;border-radius:var(--radius-sm);padding:12px 20px;font-weight:600;transition:all .15s}button:active{transform:scale(.97)}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-hover)}.btn-secondary{background:var(--border);color:var(--text)}input{font:inherit;width:100%;padding:12px 16px;border:1.5px solid var(--border);border-radius:var(--radius-sm);outline:none;transition:border-color .15s}input:focus{border-color:var(--primary)}.container{max-width:480px;margin:0 auto;padding:24px 16px}@media(min-width:768px){.container{max-width:600px;padding:32px 24px}}