:root{--color-primary: #6366f1;--color-primary-dark: #4f46e5;--color-secondary: #8b5cf6;--color-bg: #0f172a;--color-surface: #1e293b;--color-surface-2: #334155;--color-text: #f1f5f9;--color-text-muted: #94a3b8;--color-accent: #38bdf8;--color-success: #22c55e;--color-error: #ef4444;--color-warning: #f59e0b;--radius: 12px;--shadow: 0 4px 24px rgba(0,0,0,.4);--transition: .2s ease}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;scroll-behavior:smooth}body{font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background-color:var(--color-bg);color:var(--color-text);line-height:1.6;min-height:100vh}a{color:inherit;text-decoration:none}button{cursor:pointer;font-family:inherit}img,svg{display:block;max-width:100%}.container{width:100%;max-width:1100px;margin:0 auto;padding:0 1.5rem}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.6rem 1.4rem;border-radius:var(--radius);border:none;font-size:1rem;font-weight:600;transition:all var(--transition);cursor:pointer}.btn-primary{background:var(--color-primary);color:#fff}.btn-primary:hover{background:var(--color-primary-dark);transform:translateY(-1px)}.btn-secondary{background:var(--color-surface-2);color:var(--color-text)}.btn-secondary:hover{background:#475569;transform:translateY(-1px)}.btn-danger{background:var(--color-error);color:#fff}.btn-danger:hover{background:#dc2626;transform:translateY(-1px)}.card{background:var(--color-surface);border-radius:var(--radius);box-shadow:var(--shadow);padding:1.5rem}.text-muted{color:var(--color-text-muted)}.text-center{text-align:center}.mt-1{margin-top:.5rem}.mt-2{margin-top:1rem}.mt-3{margin-top:1.5rem}.mt-4{margin-top:2rem}.footer{margin-top:4rem;padding:2rem 0;border-top:1px solid var(--color-surface-2)}.nav{position:sticky;top:0;z-index:100;background:#1e293bd9;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid rgba(255,255,255,.07)}.nav-inner{max-width:1100px;margin:0 auto;padding:0 1.5rem;height:60px;display:flex;align-items:center;justify-content:space-between;gap:2rem}.nav-logo{font-size:1.25rem;font-weight:700;color:var(--color-text);text-decoration:none;white-space:nowrap}.nav-links{display:flex;align-items:center;gap:.25rem;list-style:none}.nav-link{display:inline-block;padding:.4rem .85rem;border-radius:8px;color:var(--color-text-muted);font-weight:500;transition:all var(--transition);text-decoration:none}.nav-link:hover{color:var(--color-text);background:var(--color-surface-2)}.nav-link.active{color:var(--color-primary);background:#6366f126}.nav-toggle{display:none;flex-direction:column;justify-content:center;align-items:center;gap:5px;width:36px;height:36px;background:transparent;border:none;cursor:pointer;padding:4px}.nav-toggle span{display:block;width:22px;height:2px;background:var(--color-text);border-radius:2px;transition:all var(--transition)}.nav-toggle.nav-toggle-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}.nav-toggle.nav-toggle-open span:nth-child(2){opacity:0}.nav-toggle.nav-toggle-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}@media (max-width: 768px){.nav-toggle{display:flex}.nav-links{display:none;position:absolute;top:60px;left:0;right:0;flex-direction:column;background:var(--color-surface);padding:1rem;border-bottom:1px solid var(--color-surface-2);gap:.25rem}.nav-links.nav-open{display:flex}.nav-link{width:100%;padding:.75rem 1rem}}