:root{--primary: #4f46e5;--secondary: #7c3aed;--bg: #0f172a;--text: #0f172a;--muted: #64748b}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,system-ui,sans-serif;color:var(--text);background:#fff}h1,h2,h3{letter-spacing:-.03em}.container{max-width:1200px;margin:0 auto;padding:0 24px}.btn-primary{display:inline-block;padding:.9rem 1.75rem;border-radius:999px;background:#4338ca;color:#fff;font-size:.95rem;font-weight:600;border:none;cursor:pointer;transition:background .15s ease,transform .15s ease}.btn-primary:hover{background:#4f46e5;transform:translateY(-1px)}.btn-secondary{border:1px solid #e5e7eb;padding:14px 26px;border-radius:12px;text-decoration:none;color:var(--text);font-weight:500}.fade-up{opacity:0;transform:translateY(30px);transition:all .8s ease}.fade-up.visible{opacity:1;transform:translateY(0)}img{max-width:100%;height:auto;display:block}#back-to-top{position:fixed;bottom:24px;right:24px;width:42px;height:42px;border-radius:999px;border:none;background:#4338ca;color:#fff;font-size:1.1rem;cursor:pointer;opacity:0;pointer-events:none;transform:translateY(10px);transition:all .2s ease}#back-to-top.visible{opacity:1;pointer-events:auto;transform:translateY(0)}#back-to-top:hover{background:#4f46e5}.lang-switch[data-astro-cid-a2mxz4y6]{display:flex;align-items:center;gap:8px;font-size:.85rem}.lang-switch[data-astro-cid-a2mxz4y6] a[data-astro-cid-a2mxz4y6]{color:#6b7280;text-decoration:none;padding:4px 8px;border-radius:999px;transition:all .15s ease}.lang-switch[data-astro-cid-a2mxz4y6] a[data-astro-cid-a2mxz4y6]:hover{color:#111827;background-color:#f9fafb}.lang-switch[data-astro-cid-a2mxz4y6] a[data-astro-cid-a2mxz4y6].active{color:#4338ca;font-weight:600;background-color:#eef2ff}.top-nav[data-astro-cid-ugcunkw7]{position:sticky;top:0;z-index:50;background:#fffffff2;backdrop-filter:blur(8px);border-bottom:1px solid transparent}.top-nav[data-astro-cid-ugcunkw7].scrolled{box-shadow:0 4px 12px #0f172a0f;border-color:#e5e7eb}.top-nav-inner[data-astro-cid-ugcunkw7]{max-width:1200px;margin:0 auto;padding:1.25rem 1.5rem;display:flex;align-items:center;justify-content:space-between}.top-nav-logo[data-astro-cid-ugcunkw7]{font-size:1.15rem;font-weight:600;text-decoration:none;white-space:nowrap}.logo-e[data-astro-cid-ugcunkw7],.logo-hyphen[data-astro-cid-ugcunkw7]{color:#4f46e5}.logo-learning[data-astro-cid-ugcunkw7]{color:#000}.logo-platform[data-astro-cid-ugcunkw7]{color:#7c3aed;margin-left:.25rem}.top-nav-menu-wrapper[data-astro-cid-ugcunkw7]{display:flex;align-items:center;gap:2rem}.top-nav-menu[data-astro-cid-ugcunkw7]{display:flex;gap:1.75rem}.top-nav-menu[data-astro-cid-ugcunkw7] a[data-astro-cid-ugcunkw7]{font-size:.95rem;color:#475569;text-decoration:none}.top-nav-menu[data-astro-cid-ugcunkw7] a[data-astro-cid-ugcunkw7]:hover{color:#0f172a}.nav-toggle[data-astro-cid-ugcunkw7]{display:none;background:none;border:none;font-size:1.5rem;cursor:pointer}@media(max-width:900px){.nav-toggle[data-astro-cid-ugcunkw7]{display:block}.top-nav-menu-wrapper[data-astro-cid-ugcunkw7]{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;flex-direction:column;align-items:center;gap:1.25rem;padding:1.5rem 1rem;border-bottom:1px solid #e5e7eb}.top-nav-menu-wrapper[data-astro-cid-ugcunkw7].open{display:flex}.top-nav-menu[data-astro-cid-ugcunkw7]{flex-direction:column;align-items:center;gap:1rem}.top-nav-lang[data-astro-cid-ugcunkw7]{margin-top:.5rem}}.nav-dropdown[data-astro-cid-ugcunkw7]{position:relative}.dropdown-toggle[data-astro-cid-ugcunkw7]{background:none;border:none;font-size:.95rem;color:#475569;cursor:pointer;padding:0;display:flex;align-items:center;gap:4px}.dropdown-toggle[data-astro-cid-ugcunkw7]:hover{color:#0f172a}.dropdown-menu[data-astro-cid-ugcunkw7]{position:absolute;top:calc(100% + 4px);left:0;background:#fff;border:1px solid #e5e7eb;box-shadow:0 10px 25px #0f172a14;border-radius:10px;padding:.75rem 1rem;display:none;flex-direction:column;gap:.75rem;min-width:220px;z-index:100}.nav-dropdown[data-astro-cid-ugcunkw7]:after{content:"";position:absolute;top:100%;left:0;height:12px;width:100%}.nav-dropdown[data-astro-cid-ugcunkw7]:hover .dropdown-menu[data-astro-cid-ugcunkw7]{display:flex}.hp[data-astro-cid-svshx33u]{display:none}.contact-form[data-astro-cid-svshx33u]{display:grid;gap:1rem}.contact-form[data-astro-cid-svshx33u] label[data-astro-cid-svshx33u]{display:flex;flex-direction:column;font-size:.85rem;color:#334155}.contact-form[data-astro-cid-svshx33u] input[data-astro-cid-svshx33u],.contact-form[data-astro-cid-svshx33u] textarea[data-astro-cid-svshx33u]{margin-top:.25rem;padding:.6rem .7rem;border-radius:8px;border:1px solid #e5e7eb;font-size:.9rem}.form-feedback[data-astro-cid-svshx33u]{margin-top:1rem;font-size:.9rem}.form-feedback[data-astro-cid-svshx33u].success{color:#16a34a}.form-feedback[data-astro-cid-svshx33u].error{color:#dc2626}.modal[data-astro-cid-nxxydibx]{position:fixed;inset:0;display:none;z-index:100}.modal[data-astro-cid-nxxydibx].open{display:block}.modal-backdrop[data-astro-cid-nxxydibx]{position:absolute;inset:0;background:#0f172a80}.modal-content[data-astro-cid-nxxydibx]{position:relative;max-width:420px;margin:10vh auto;background:#fff;border-radius:16px;padding:2rem}.modal-close[data-astro-cid-nxxydibx]{position:absolute;top:12px;right:12px;border:none;background:none;font-size:1.2rem;cursor:pointer}