:root{--primary-color:#3b82f6;--primary-dark:#2563eb;--secondary-color:#8b5cf6;--text-main:#1f2937;--text-secondary:#6b7280;--bg-light:#f9fafb;--bg-white:#fff;--border-color:#e5e7eb;--shadow:0 1px 3px #0000001a;--shadow-lg:0 10px 15px -3px #0000001a}*{box-sizing:border-box;margin:0;padding:0}body{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;color:var(--text-main);flex-direction:column;min-height:100vh;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;line-height:1.6;display:flex}#root{flex-direction:column;flex:1;display:flex}a{color:var(--primary-color);text-decoration:none;transition:color .2s}a:hover{color:var(--primary-dark)}button{cursor:pointer;font-family:inherit}.container{max-width:1200px;margin:0 auto;padding:0 20px}.btn{border:none;border-radius:8px;justify-content:center;align-items:center;padding:12px 24px;font-size:16px;font-weight:500;transition:all .2s;display:inline-flex}.btn-primary{background:linear-gradient(135deg,var(--primary-color),var(--secondary-color));color:#fff}.btn-primary:hover{box-shadow:var(--shadow-lg);transform:translateY(-2px)}.btn-primary:active{transform:translateY(0)}.btn-secondary{color:var(--primary-color);border:2px solid var(--primary-color);background:#fff}.btn-secondary:hover{background:var(--bg-light)}.btn-large{padding:16px 32px;font-size:18px}.btn-disabled{opacity:.6;cursor:not-allowed}.btn-disabled:hover{box-shadow:none;transform:none}