:root{--bg-primary: #0f172a;--bg-secondary: #1e293b;--text-primary: #f8fafc;--text-secondary: #94a3b8;--accent-color: #38bdf8;--accent-hover: #0ea5e9;--success-color: #4ade80;--error-color: #f87171;--card-bg: #1e293b;--border-color: #334155;--font-family: "Inter", system-ui, Avenir, Helvetica, Arial, sans-serif}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-family);background-color:var(--bg-primary);color:var(--text-primary);line-height:1.5;-webkit-font-smoothing:antialiased}#root{min-height:100vh;display:flex;flex-direction:column}a{color:var(--accent-color);text-decoration:none;transition:color .2s}a:hover{color:var(--accent-hover)}button{cursor:pointer;border:none;font-family:inherit;transition:all .2s}.container{max-width:800px;margin:0 auto;padding:2rem;width:100%}.card{background-color:var(--card-bg);border-radius:1rem;padding:2rem;box-shadow:0 4px 6px -1px #0000001a,0 2px 4px -1px #0000000f;border:1px solid var(--border-color)}.btn-primary{background-color:var(--accent-color);color:#0f172a;padding:.75rem 1.5rem;border-radius:.5rem;font-weight:600;font-size:1rem}.btn-primary:hover{background-color:var(--accent-hover);transform:translateY(-1px)}.btn-secondary{background-color:transparent;border:1px solid var(--border-color);color:var(--text-primary);padding:.75rem 1.5rem;border-radius:.5rem;font-weight:600}.btn-secondary:hover{background-color:var(--bg-secondary);border-color:var(--accent-color)}.title{font-size:2.5rem;font-weight:800;margin-bottom:1rem;background:linear-gradient(to right,var(--accent-color),#818cf8);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.subtitle{color:var(--text-secondary);font-size:1.1rem;margin-bottom:2rem}.nav{display:flex;justify-content:space-between;align-items:center;padding:1rem 2rem;background-color:#0f172acc;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);position:sticky;top:0;z-index:100;border-bottom:1px solid var(--border-color)}.nav-logo{font-weight:800;font-size:1.5rem;color:var(--text-primary)}.nav-links{display:flex;gap:1.5rem}.nav-link{color:var(--text-secondary);font-weight:500}.nav-link:hover,.nav-link.active{color:var(--accent-color)}canvas{background-color:#fff;border-radius:.5rem;cursor:crosshair;touch-action:none}