/* Trébol Books — tienda. Usa los tokens de identidad/tokens.css */

*{box-sizing:border-box;margin:0}
html{scroll-behavior:smooth}
body{background:var(--tb-bg);color:var(--tb-text);font-family:var(--tb-font-body);font-size:17px;line-height:1.6;overflow-x:clip}
img{max-width:100%;height:auto;display:block}
h1,h2,h3{font-family:var(--tb-font-display);line-height:1.1;letter-spacing:-.01em}
::selection{background:var(--tb-sol);color:var(--tb-tinta)}
.trampa{position:absolute;left:-9999px}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;font-family:var(--tb-font-display);font-weight:700;
  background:var(--tb-verde);color:#fff;border:0;cursor:pointer;text-decoration:none;
  padding:14px 26px;border-radius:var(--tb-radio-pill);font-size:17px;transition:transform .2s,background .2s}
.btn:hover{background:var(--tb-verde-oscuro);transform:translateY(-2px)}
.btn-grande{padding:18px 36px;font-size:19px}
.btn-mini{padding:10px 20px;font-size:15px}
.btn-texto{background:none;color:var(--tb-verde-oscuro);padding:14px 4px;text-decoration:underline;text-underline-offset:4px}
.btn-texto:hover{background:none;color:var(--tb-coral)}

.cinta-top{background:var(--tb-verde-oscuro);color:#fff;text-align:center;font-size:14.5px;padding:9px 16px;font-weight:600}

.top{position:sticky;top:0;z-index:50;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:12px clamp(16px,4vw,48px);background:rgba(255,247,233,.93);backdrop-filter:blur(10px);border-bottom:1px solid var(--tb-border)}
.marca{display:inline-flex;align-items:center;gap:10px;text-decoration:none;color:var(--tb-verde-oscuro);
  font-family:var(--tb-font-display);font-weight:800;font-size:20px;white-space:nowrap}
.top nav{display:flex;align-items:center;gap:clamp(12px,2.4vw,28px)}
.top nav a{color:var(--tb-text);text-decoration:none;font-weight:600;font-size:16px}
.top nav a:hover{color:var(--tb-verde)}
.menu-btn{display:none;width:44px;height:44px;border:1px solid var(--tb-border);background:#fff;border-radius:14px;position:relative;cursor:pointer}
.menu-btn span,.menu-btn span::before,.menu-btn span::after{position:absolute;left:50%;width:20px;height:2px;background:var(--tb-tinta);border-radius:2px;translate:-50% 0}
.menu-btn span{top:50%}
.menu-btn span::before,.menu-btn span::after{content:"";left:0;translate:0 0}
.menu-btn span::before{top:-7px}.menu-btn span::after{top:7px}

/* ---------- Hero ---------- */
.hero{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(24px,5vw,64px);align-items:center;
  padding:clamp(32px,6vh,72px) clamp(16px,4vw,48px) clamp(40px,7vh,88px);max-width:1240px;margin:0 auto}
.hero h1{font-size:clamp(2.3rem,5.4vw,4rem);font-weight:800}
.hero h1 em{font-style:normal;color:var(--tb-coral)}
.hero-sub{margin-top:22px;font-size:clamp(16.5px,1.8vw,19px);color:var(--tb-text);max-width:46ch}
.hero-sub strong{color:var(--tb-verde-oscuro)}
.hero-ctas{display:flex;flex-wrap:wrap;gap:14px;align-items:center;margin-top:30px}
.hero-nota{margin-top:18px;font-size:14.5px;color:var(--tb-text-muted)}
.hero-img{position:relative;display:grid;place-items:center}
.hero-img img{border-radius:10px;box-shadow:0 26px 60px rgba(32,48,58,.24);rotate:-3deg}
.hero-img-2{position:absolute;right:-4%;bottom:-8%;width:46%;rotate:6deg!important;border:4px solid #fff}

/* ---------- Franja ---------- */
.franja{display:flex;flex-wrap:wrap;justify-content:center;gap:clamp(16px,4vw,52px);
  background:var(--tb-papel-2);border-block:1px solid var(--tb-border);padding:18px 20px;font-weight:600;font-size:15.5px}

/* ---------- Secciones ---------- */
section{padding:clamp(48px,8vh,100px) clamp(16px,4vw,48px)}
section>h2{font-size:clamp(1.9rem,4.4vw,3rem);text-align:center;text-wrap:balance}
.sub{text-align:center;color:var(--tb-text-muted);max-width:58ch;margin:14px auto 0;font-size:17px}

/* Cómo funciona */
.como{max-width:1120px;margin:0 auto}
.pasos{list-style:none;padding:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(270px,1fr));gap:24px;margin-top:clamp(32px,5vh,56px)}
.pasos li{background:var(--tb-surface);border:1px solid var(--tb-border);border-radius:var(--tb-radio);padding:28px 26px 26px;position:relative}
.num{position:absolute;top:-18px;left:26px;width:44px;height:44px;border-radius:50%;background:var(--tb-sol);
  color:var(--tb-tinta);display:grid;place-items:center;font-family:var(--tb-font-display);font-weight:800;font-size:21px;border:3px solid var(--tb-bg)}
.pasos h3{margin:14px 0 10px;font-size:1.35rem;color:var(--tb-verde-oscuro)}
.pasos p{color:var(--tb-text-muted);font-size:16px}
.enlace{display:inline-block;margin-top:14px;color:var(--tb-verde);font-weight:700;text-decoration:none;border-bottom:2px solid transparent}
.enlace:hover{border-color:var(--tb-verde)}
.aviso-honesto{margin-top:34px;text-align:center;font-family:var(--tb-font-mano);font-size:clamp(20px,2.6vw,26px);color:var(--tb-verde-oscuro)}

/* Libros */
.libros{background:var(--tb-papel-2);max-width:none}
.libro{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);gap:clamp(24px,4vw,52px);align-items:center;
  max-width:1120px;margin:clamp(36px,6vh,64px) auto 0}
.libro-inv .libro-galeria{order:2}
.libro-galeria{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.libro-galeria img{border-radius:12px;border:1px solid var(--tb-border);box-shadow:0 10px 28px rgba(32,48,58,.12);
  aspect-ratio:3/4;object-fit:cover;object-position:center top}
.etiqueta{display:inline-block;background:var(--tb-cielo);color:var(--tb-tinta);font-weight:700;font-size:13.5px;
  padding:5px 14px;border-radius:var(--tb-radio-pill);margin-bottom:12px}
.libro-info h3{font-size:clamp(1.5rem,3vw,2.1rem);color:var(--tb-verde-oscuro);margin-bottom:12px}
.libro-info p:last-child{color:var(--tb-text-muted)}

/* Precios */
.precios{max-width:1120px;margin:0 auto}
.formatos{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:22px;margin-top:clamp(32px,5vh,56px);align-items:stretch}
.formato{background:var(--tb-surface);border:2px solid var(--tb-border);border-radius:var(--tb-radio);padding:28px 24px;display:flex;flex-direction:column}
.formato.destacado{border-color:var(--tb-verde);box-shadow:0 18px 44px rgba(47,168,79,.18);transform:translateY(-10px)}
.formato-tag{font-size:13.5px;font-weight:700;color:var(--tb-text-muted);text-transform:uppercase;letter-spacing:.06em}
.formato.destacado .formato-tag{color:var(--tb-verde)}
.formato h3{margin:10px 0 6px;font-size:1.5rem;color:var(--tb-verde-oscuro)}
.precio{font-family:var(--tb-font-display);font-weight:800;font-size:2.2rem;color:var(--tb-tinta);margin-bottom:12px}
.formato-desc{color:var(--tb-text-muted);font-size:16px}
.nota-precio{text-align:center;margin-top:30px;color:var(--tb-text-muted);font-size:15px}

/* Pedido */
.pedido{background:var(--tb-verde-oscuro);color:#fff}
.pedido h2{color:#fff}
.pedido .sub{color:#CFE3D8}
.form{max-width:720px;margin:clamp(30px,5vh,48px) auto 0;display:grid;grid-template-columns:1fr 1fr;gap:22px 26px}
.campo{display:flex;flex-direction:column;gap:7px}
.campo-ancho{grid-column:1/-1}
.campo span{font-size:13.5px;font-weight:700;letter-spacing:.05em;text-transform:uppercase;color:var(--tb-sol)}
.campo input,.campo textarea{background:rgba(255,255,255,.08);border:1.5px solid rgba(255,255,255,.28);border-radius:14px;
  color:#fff;padding:13px 15px;font:inherit;font-size:16.5px;resize:vertical}
.campo input:focus,.campo textarea:focus{outline:none;border-color:var(--tb-sol);background:rgba(255,255,255,.13)}
.campo ::placeholder{color:rgba(255,255,255,.55)}
.cta-envio{grid-column:1/-1;justify-self:center;background:var(--tb-coral);min-width:240px}
.cta-envio:hover{background:#ff5546}
.form-nota{grid-column:1/-1;text-align:center;color:#CFE3D8;font-size:15px}
.form-nota a{color:var(--tb-sol)}
.gracias{grid-column:1/-1;text-align:center;font-family:var(--tb-font-display);font-size:1.4rem;padding:26px 0}

/* FAQ */
.faq{max-width:840px;margin:0 auto}
.faq-lista{margin-top:clamp(26px,4vh,42px)}
.faq details{border-bottom:1px solid var(--tb-border)}
.faq summary{cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:16px;
  font-family:var(--tb-font-display);font-weight:700;font-size:18px;padding:18px 2px;color:var(--tb-verde-oscuro)}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--tb-coral);font-size:26px;font-weight:700;line-height:1;transition:rotate .25s}
.faq details[open] summary::after{rotate:45deg}
.faq details p{padding:0 2px 20px;color:var(--tb-text-muted)}

/* Pie */
.pie{background:var(--tb-papel-2);border-top:1px solid var(--tb-border);text-align:center;padding:44px 20px 40px}
.pie img{margin:0 auto 12px}
.pie-marca{font-family:var(--tb-font-display);font-weight:700;color:var(--tb-verde-oscuro)}
.pie-nav{display:flex;flex-wrap:wrap;gap:20px;justify-content:center;margin:16px 0 14px}
.pie-nav a{color:var(--tb-text);text-decoration:none;font-weight:600;font-size:15.5px}
.pie-nav a:hover{color:var(--tb-verde)}
.pie-legal{color:var(--tb-text-muted);font-size:14px}

/* ---------- Responsive ---------- */
@media (max-width:900px){
  .hero{grid-template-columns:1fr;text-align:center}
  .hero-sub{margin-inline:auto}
  .hero-ctas{justify-content:center}
  .hero-img{margin-top:10px}
  .hero-img-2{width:40%;right:0}
  .libro,.libro-inv .libro-galeria{grid-template-columns:1fr;order:0}
}
@media (max-width:860px){
  .js .menu-btn{display:block}
  .js .top nav{display:none;position:absolute;top:100%;left:0;right:0;flex-direction:column;align-items:stretch;gap:0;
    background:var(--tb-bg);border-bottom:1px solid var(--tb-border);padding:6px 20px 20px;box-shadow:0 14px 30px rgba(32,48,58,.12)}
  .js body.menu-abierto .top nav,.js.menu-abierto .top nav{display:flex}
  .js .top nav a{padding:15px 2px;border-bottom:1px solid var(--tb-border);font-size:17px}
  .js .btn-mini{margin-top:14px;border-bottom:0}
}
@media (max-width:560px){.form{grid-template-columns:1fr}.formato.destacado{transform:none}}
@media (prefers-reduced-motion:reduce){.btn:hover{transform:none}*{transition:none!important}}