.guarani-main { min-height: 100vh; padding: 150px 24px 100px; position: relative; z-index: 2; }
.guarani-intro { max-width: 760px; margin: 0 auto 64px; text-align: center; }
.guarani-intro h1 { color: var(--hueso); font: 400 clamp(46px,8vw,88px)/.95 var(--display); letter-spacing: .05em; margin: 12px 0 24px; }
.guarani-intro p { color: var(--niebla); margin: 0; }
.guarani-grid { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: clamp(24px,3vw,44px); max-width: var(--ancho); margin: auto; }
.guarani-book { text-align: center; min-width: 0; }
.guarani-cover-link { display: block; border: 1px solid var(--borde); background: var(--piedra); box-shadow: 0 20px 45px rgba(0,0,0,.38); transition: transform .4s ease, box-shadow .4s ease, border-color .4s ease; }
.guarani-cover-link:hover { transform: translateY(-7px) scale(1.015); border-color: var(--runa-tenue); box-shadow: 0 28px 60px rgba(0,0,0,.5); }
.guarani-cover { width: 100%; aspect-ratio: 2/3; object-fit: cover; }
.guarani-book h2 { min-height: 2.5em; color: var(--hueso); font: 500 clamp(20px,2vw,27px)/1.15 var(--display); letter-spacing: .055em; margin: 24px 0 18px; }
.guarani-book .cta { justify-content: center; }
@media (max-width: 900px) { .guarani-grid { grid-template-columns: repeat(2,minmax(0,1fr)); max-width: 660px; } }
@media (max-width: 520px) { .guarani-main { padding: 120px 20px 70px; } .guarani-grid { grid-template-columns: 1fr; max-width: 300px; gap: 48px; } .guarani-intro { margin-bottom: 45px; } }
@media (prefers-reduced-motion: reduce) { .guarani-cover-link { transition: none; } .guarani-cover-link:hover { transform: none; } }