*,*:before,*:after{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:#f4f5f7;color:#1a1a2e}.header{background:#1a1a2e;padding:0 1.5rem;box-shadow:0 2px 8px #00000026}.header__nav{display:flex;gap:.75rem;max-width:1200px;margin:0 auto;padding:.75rem 0}.header__btn{display:inline-flex;align-items:center;padding:.6rem 1.4rem;border-radius:8px;font-size:.95rem;font-weight:600;text-decoration:none;color:#e0e0e0;background:transparent;border:2px solid transparent;transition:background .2s,color .2s,border-color .2s}.header__btn:hover{background:#ffffff14;color:#fff}.header__btn--active{background:#4f46e5;color:#fff;border-color:#4f46e5}.main{max-width:1200px;margin:0 auto;padding:2rem 1.5rem}.page--home{text-align:center;padding:4rem 1rem}.page--home h1{font-size:2rem;margin-bottom:.5rem}.page--home p{color:#6b7280}.page--embed{display:flex;flex-direction:column;gap:1rem}.page__title{font-size:1.5rem;margin:0}