:root{--color-bg:#fff;--color-bg-alt:#f8f9fa;--color-text:#1a1a1a;--color-text-light:#666;--color-primary:#000;--color-border:#e0e0e0;--color-accent:#06f;--transition:all .3s cubic-bezier(.4, 0, .2, 1);--spacing-xs:.5rem;--spacing-sm:1rem;--spacing-md:1.5rem;--spacing-lg:2rem;--spacing-xl:3rem;--spacing-2xl:4rem;--border-radius:8px;--max-width:1500px}@media (prefers-color-scheme:dark){:root{--color-bg:#0f0f0f;--color-bg-alt:#1a1a1a;--color-text:#f5f5f5;--color-text-light:#b0b0b0;--color-primary:#fff;--color-border:#333}}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{background-color:var(--color-bg);color:var(--color-text);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;font-size:16px;line-height:1.6}#root{flex-direction:column;min-height:100vh;display:flex}.app{flex-direction:column;min-height:100vh;display:flex;overflow-x:hidden}.main-content{flex:1}h1,h2,h3,h4,h5,h6{font-weight:600;line-height:1.2}h1{font-size:3rem}h2{font-size:2.25rem}h3{font-size:1.5rem}a{color:var(--color-accent);transition:var(--transition);text-decoration:none}a:hover{opacity:.8}p{margin:0}.btn{padding:var(--spacing-sm) var(--spacing-lg);border-radius:var(--border-radius);cursor:pointer;transition:var(--transition);white-space:nowrap;border:2px solid #0000;outline:none;justify-content:center;align-items:center;font-size:1rem;font-weight:600;text-decoration:none;display:inline-flex}.btn-primary{background-color:var(--color-primary);color:var(--color-bg);border-color:var(--color-primary)}.btn-primary:hover{background-color:var(--color-text);border-color:var(--color-text);transform:translateY(-2px);box-shadow:0 4px 12px #00000026}.btn-secondary{color:var(--color-primary);border-color:var(--color-border);background-color:#0000}.btn-secondary:hover{background-color:var(--color-bg-alt);border-color:var(--color-primary);transform:translateY(-2px)}.section-header{text-align:center;margin-bottom:var(--spacing-2xl)}.section-header h2{margin-bottom:var(--spacing-sm);color:var(--color-primary);font-size:clamp(2rem,5vw,2.5rem)}.section-header p{color:var(--color-text-light);max-width:500px;margin:0 auto;font-size:1.1rem}@media (width<=768px){:root{--spacing-xl:2rem;--spacing-2xl:2.5rem}h1{font-size:2rem}h2{font-size:1.75rem}h3{font-size:1.25rem}.btn{padding:var(--spacing-xs) var(--spacing-md);font-size:.95rem}}@media (width<=480px){body{font-size:15px}h1{font-size:1.75rem}h2{font-size:1.5rem}h3{font-size:1.25rem}}.footer{background-color:var(--color-bg-alt);border-top:1px solid var(--color-border);padding:var(--spacing-lg) var(--spacing-md);margin-top:auto}.footer-container{max-width:var(--max-width);margin:0 auto}.footer-content{text-align:center}.footer-content p{color:var(--color-text-light);margin:var(--spacing-xs) 0;font-size:.95rem;line-height:1.6}.footer-credit{margin-top:var(--spacing-sm);font-size:.9rem}.footer-link-button{border:1px solid var(--color-border);color:var(--color-text-light);letter-spacing:.01em;background:0 0;border-radius:10px;align-items:center;gap:.35rem;padding:.55rem .95rem;font-weight:500;text-decoration:none;transition:border-color .16s,background-color .16s,color .16s;display:inline-flex}.footer-link-button:after{content:"→";font-size:.9rem;line-height:1}.footer-link-button:hover{border-color:var(--color-text-light);color:var(--color-text);background:#ffffff08}.footer-link-button:focus-visible{outline:2px solid var(--color-border);outline-offset:3px}@media (width<=768px){.footer{padding:var(--spacing-md)}.footer-content p{font-size:.9rem}}