:root{--primary: #646cff;--primary-hover: #535bf2;--bg-dark: #242424;--bg-card: #2f2f2f;--text-main: rgba(255, 255, 255, .87);--text-muted: #a1a1aa;font-family:Inter,system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:var(--text-main);background-color:var(--bg-dark);font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh}#root{width:100%;max-width:1280px;margin:0 auto;padding:2rem;text-align:center}.btn{border-radius:8px;border:1px solid transparent;padding:.8em 1.2em;font-size:1.1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;transition:border-color .25s;min-height:44px;min-width:44px;margin:.25rem;display:inline-flex;align-items:center;justify-content:center}.btn:hover{border-color:var(--primary)}.btn:focus,.btn:focus-visible{outline:4px auto -webkit-focus-ring-color}.btn-primary{background-color:var(--primary);color:#fff;font-weight:700}.btn-primary:hover{background-color:var(--primary-hover)}button,input,select,textarea{min-height:44px;font-size:16px}.card{padding:2em;background-color:var(--bg-card);border-radius:12px;box-shadow:0 4px 6px -1px #0000001a}.input-group{display:flex;flex-direction:column;gap:.5rem;text-align:left;margin-bottom:1rem}input,select,textarea{padding:.8rem;border-radius:6px;border:1px solid #555;background-color:#1a1a1a;color:#fff;font-size:1.1rem;min-height:44px;margin:.25rem 0}input:focus,select:focus,textarea:focus{outline:2px solid var(--primary);border-color:transparent}h1{font-size:2rem;font-weight:700}h2{font-size:1.7rem;font-weight:700}h3{font-size:1.4rem;font-weight:700}p,div{font-size:1rem}nav{display:flex;justify-content:space-between;align-items:center;padding:8px 16px;background:#1a1a1a;border-bottom:1px solid #333;position:fixed;top:0;left:0;right:0;z-index:1000;height:56px;box-sizing:border-box}nav a{color:var(--text-main);text-decoration:none;font-weight:700;padding:.6rem 1rem;border-radius:6px;transition:background .2s;min-height:44px;display:inline-flex;align-items:center}nav a:hover,nav a.active{background:#ffffff1a}.nav-brand{font-size:1.5rem;font-weight:700;color:var(--primary)}.main-content{margin-top:64px}.nav-links{display:flex;align-items:center;gap:.5rem}.hamburger{display:none;background:none;border:none;color:#fff;font-size:1.5rem;min-height:44px;min-width:44px;cursor:pointer;padding:0;margin:0}.nav-overlay{display:none}@media(max-width:768px){.hamburger{display:flex;align-items:center;justify-content:center}.nav-links{position:fixed;top:56px;right:-100%;width:250px;height:calc(100vh - 56px);background:#1a1a1a;flex-direction:column;align-items:stretch;padding:1rem;gap:.25rem;transition:right .3s ease;box-shadow:-4px 0 15px #00000080;z-index:999;overflow-y:auto}.nav-links.open{right:0}.nav-links a,.nav-links button{display:flex;width:100%;justify-content:flex-start;padding:1rem;margin:0;box-sizing:border-box;border-radius:6px}.nav-overlay{display:block;position:fixed;inset:56px 0 0;background:#00000080;z-index:998;opacity:0;pointer-events:none;transition:opacity .3s ease}.nav-overlay.open{opacity:1;pointer-events:auto}}