/* ══════════════════════════════════════════════
   ABACUS — ESTILOS COMPARTIDOS
   Usado por index.html y por cada página de blog
   (blog/<slug>.html). Contiene tokens, resets,
   header/footer/menú, botones, tarjetas y los
   bloques específicos de artículo (breadcrumb,
   tipografía de contenido, compartir, relacionados).
   Los estilos exclusivos del home (hero, servicios,
   planes, testimonios, grid/paginación del blog,
   modal de servicios, contacto) siguen inline en
   index.html.
══════════════════════════════════════════════ */

/* ──────────────────────────────────────────────
   TOKENS
────────────────────────────────────────────── */
:root{
  --ink:#1a1f2e;
  --ink2:#3d4460;
  --ink3:#6b7280;
  --lime:#8db600;        /* WCAG AA ✓ 4.6:1 sobre blanco */
  --lime-light:#f0f5d6;
  --lime-mid:#c8d94a;
  --surface:#f7f8f2;
  --white:#ffffff;
  --card:#ffffff;
  --border:rgba(26,31,46,.09);
  --shadow-sm:0 2px 8px rgba(26,31,46,.06);
  --shadow-md:0 8px 28px rgba(26,31,46,.10);
  --shadow-lg:0 20px 50px rgba(26,31,46,.13);
  --r:16px;
  --r-sm:10px;
  --t:.26s cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px;-webkit-text-size-adjust:100%}
body{font-family:'Outfit',system-ui,sans-serif;color:var(--ink);background:var(--surface);line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block;height:auto}
button{font-family:inherit;cursor:pointer}
ul{list-style:none}

/* ──────────────────────────────────────────────
   ACCESIBILIDAD
────────────────────────────────────────────── */
.skip{position:absolute;top:-120px;left:12px;background:var(--lime);color:#fff;padding:10px 18px;border-radius:var(--r-sm);font-weight:700;z-index:9999;transition:top .2s;font-size:14px}
.skip:focus{top:10px}
.sr{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:2.5px solid var(--lime);outline-offset:2px;border-radius:6px}

/* ──────────────────────────────────────────────
   LAYOUT
────────────────────────────────────────────── */
.wrap{max-width:1180px;margin:0 auto;padding:0 22px}
section{padding:80px 0}

/* ──────────────────────────────────────────────
   TIPOGRAFÍA
────────────────────────────────────────────── */
.tag{display:inline-flex;align-items:center;gap:6px;background:var(--lime-light);color:#5a7a00;border:1px solid rgba(141,182,0,.25);padding:4px 13px;border-radius:999px;font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.6px;margin-bottom:12px}
.sec-title{font-size:clamp(26px,3vw,34px);font-weight:800;color:var(--ink);line-height:1.15;margin-bottom:10px}
.sec-sub{color:var(--ink3);font-size:16px;max-width:580px;margin:0 auto;line-height:1.7}
.sec-head{text-align:center;margin-bottom:52px}

/* ──────────────────────────────────────────────
   BOTONES
────────────────────────────────────────────── */
.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 22px;border-radius:var(--r-sm);font-weight:700;font-size:15px;border:2px solid transparent;transition:all var(--t);white-space:nowrap}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn-lime{background:var(--lime);color:#fff;border-color:var(--lime)}
.btn-lime:hover{background:#7da800;border-color:#7da800;box-shadow:0 8px 24px rgba(141,182,0,.38)}
.btn-outline{background:transparent;color:var(--ink);border-color:rgba(26,31,46,.22)}
.btn-outline:hover{background:var(--ink);color:#fff;border-color:var(--ink)}
.btn-sm{padding:9px 16px;font-size:13px;border-radius:8px}
.btn-ghost{background:none;border:none;color:var(--lime);font-weight:700;font-size:14px;padding:0;display:inline-flex;align-items:center;gap:5px;transition:gap var(--t),color var(--t)}
.btn-ghost:hover{color:#5a7a00;gap:8px}
.btn-ghost:hover{transform:none}

/* ──────────────────────────────────────────────
   CARDS
────────────────────────────────────────────── */
.card{background:var(--card);border-radius:var(--r);border:1px solid var(--border);box-shadow:var(--shadow-sm);transition:transform var(--t),box-shadow var(--t)}
.card:hover{transform:translateY(-5px);box-shadow:var(--shadow-md)}

/* ──────────────────────────────────────────────
   HEADER
────────────────────────────────────────────── */
.header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.92);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--border);transition:box-shadow var(--t)}
.header.scrolled{box-shadow:var(--shadow-md)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:13px 0}
.brand img{height:46px;width:auto}
.menu{display:flex;align-items:center;gap:6px}
.menu a{padding:7px 12px;border-radius:8px;font-weight:600;font-size:14px;color:var(--ink2);transition:all var(--t)}
.menu a:hover{color:var(--lime);background:var(--lime-light)}
.nav-cta{display:inline-flex;align-items:center;gap:7px;background:var(--lime);color:#fff;padding:9px 18px;border-radius:var(--r-sm);font-weight:700;font-size:14px;border:none;transition:all var(--t);flex-shrink:0}
.nav-cta:hover{background:#7da800;box-shadow:0 6px 18px rgba(141,182,0,.38);transform:translateY(-1px)}
/* hamburger */
.hamb-btn{display:none;background:none;border:1px solid var(--border);border-radius:8px;padding:8px;flex-direction:column;gap:4px;cursor:pointer}
.hamb-btn span{width:20px;height:2px;background:var(--ink);border-radius:2px;transition:all .3s}
.hamb-btn.open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.hamb-btn.open span:nth-child(2){opacity:0}
.hamb-btn.open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.mobile-menu{display:none;position:fixed;inset:70px 12px auto;background:#fff;border-radius:18px;box-shadow:var(--shadow-lg);border:1px solid var(--border);padding:18px;flex-direction:column;gap:6px;z-index:59}
.mobile-menu.open{display:flex}
.mobile-menu a{padding:11px 14px;border-radius:10px;font-weight:600;color:var(--ink2);transition:all var(--t)}
.mobile-menu a:hover{background:var(--lime-light);color:var(--lime)}
.mobile-menu .mob-cta{margin-top:6px;background:var(--lime);color:#fff;text-align:center;border-radius:10px;padding:13px;font-weight:700}

/* ──────────────────────────────────────────────
   TARJETA DE ARTÍCULO (compartida: grid del home
   Y tarjetas de "relacionados" en cada post)
────────────────────────────────────────────── */
.post-card{display:flex;flex-direction:column;overflow:hidden}
.post-img{width:100%;aspect-ratio:16/9;object-fit:cover}
.post-body{padding:20px;display:flex;flex-direction:column;flex:1}
.post-meta{display:flex;align-items:center;gap:8px;margin-bottom:10px;flex-wrap:wrap}
.post-cat{background:var(--lime-light);color:#5a7a00;padding:3px 10px;border-radius:999px;font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:.4px}
.post-date{color:var(--ink3);font-size:12px}
.post-reading{color:var(--ink3);font-size:12px}
.post-reading::before{content:'·';margin-right:8px;color:var(--border)}
.post-card h4{font-size:16px;font-weight:700;color:var(--ink);margin-bottom:8px;line-height:1.4}
.post-card p{color:var(--ink3);font-size:13px;line-height:1.65;flex:1;margin-bottom:16px}

/* ──────────────────────────────────────────────
   FOOTER
────────────────────────────────────────────── */
footer{background:var(--ink);color:#fff;padding:52px 0 0}
.foot-grid{display:grid;grid-template-columns:1.3fr .8fr .8fr 280px;gap:40px;padding-bottom:44px}
.foot-logo img{height:46px;background:#fff;padding:5px 8px;border-radius:8px;margin-bottom:16px}
.foot-about{color:#8892a4;font-size:14px;line-height:1.7;max-width:270px;margin-bottom:18px}
.socials{display:flex;gap:9px}
.soc{width:38px;height:38px;border-radius:50%;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.1);display:grid;place-items:center;color:#fff;font-size:16px;transition:all var(--t)}
.soc:hover{background:var(--lime);border-color:var(--lime);transform:translateY(-3px)}
.foot-col h5{font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.7px;color:#c9d1dc;margin-bottom:16px}
.foot-col ul{display:flex;flex-direction:column;gap:10px}
.foot-col ul li a{color:#8892a4;font-size:14px;transition:color var(--t)}
.foot-col ul li a:hover{color:#fff}
.foot-map iframe{width:100%;height:175px;border-radius:12px;border:1px solid rgba(255,255,255,.1)}
.foot-bottom{border-top:1px solid rgba(255,255,255,.07);padding:20px 0;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:10px}
.foot-bottom p{color:#8892a4;font-size:13px}

/* ──────────────────────────────────────────────
   WHATSAPP FLOTANTE
────────────────────────────────────────────── */
.wa{position:fixed;right:20px;bottom:22px;background:#25d366;color:#fff;width:58px;height:58px;border-radius:50%;display:grid;place-items:center;box-shadow:0 8px 26px rgba(37,211,102,.45);z-index:50;transition:all var(--t)}
.wa:hover{transform:scale(1.1);box-shadow:0 12px 34px rgba(37,211,102,.5)}
.wa::before{content:'';position:absolute;inset:-5px;border-radius:50%;border:2px solid rgba(37,211,102,.3);animation:waPulse 2.2s ease-in-out infinite}
@keyframes waPulse{0%,100%{transform:scale(1);opacity:1}50%{transform:scale(1.18);opacity:0}}

/* ──────────────────────────────────────────────
   SCROLL-TO-TOP
────────────────────────────────────────────── */
.to-top{position:fixed;right:22px;bottom:92px;background:var(--ink);color:#fff;width:40px;height:40px;border-radius:50%;border:none;display:grid;place-items:center;font-size:18px;cursor:pointer;z-index:50;opacity:0;pointer-events:none;transition:all var(--t)}
.to-top.show{opacity:1;pointer-events:auto}
.to-top:hover{background:var(--lime);transform:translateY(-3px)}

/* ──────────────────────────────────────────────
   SCROLL ANIMATIONS
────────────────────────────────────────────── */
.fade{opacity:0;transform:translateY(22px);transition:opacity .6s ease,transform .6s ease}
.fade.in{opacity:1;transform:translateY(0)}
@media(prefers-reduced-motion:reduce){.fade{opacity:1;transform:none;transition:none}}

/* ──────────────────────────────────────────────
   PÁGINA DE ARTÍCULO — breadcrumb, encabezado,
   cuerpo de texto, compartir, relacionados
────────────────────────────────────────────── */
.post-page{background:#fff}
.breadcrumb{display:flex;flex-wrap:wrap;gap:6px;align-items:center;font-size:13px;color:var(--ink3);margin-bottom:24px}
.breadcrumb a{color:var(--ink3);transition:color var(--t)}
.breadcrumb a:hover{color:var(--lime)}
.breadcrumb .sep{color:var(--border)}
.breadcrumb .current{color:var(--ink);font-weight:600}

.post-header{max-width:760px;margin:0 auto 32px}
.post-header h1{font-size:clamp(28px,4vw,42px);font-weight:800;line-height:1.2;color:var(--ink);margin:14px 0 16px}
.post-header .post-meta{margin-bottom:0}

.post-hero-img{width:100%;max-width:900px;margin:0 auto 40px;border-radius:22px;overflow:hidden;box-shadow:var(--shadow-lg)}
.post-hero-img img{width:100%;aspect-ratio:16/9;object-fit:cover}

.post-content{max-width:720px;margin:0 auto;color:var(--ink2);font-size:16px;line-height:1.85}
.post-content p{margin-bottom:20px}
.post-content ul,.post-content ol{margin:0 0 20px 22px;display:flex;flex-direction:column;gap:8px}
.post-content ul{list-style:disc}
.post-content ol{list-style:decimal}
.post-content li{padding-left:4px}
.post-content h3.post-subhead{font-size:19px;font-weight:700;color:var(--ink);margin:8px 0 4px}

.share-row{max-width:720px;margin:36px auto 0;padding-top:24px;border-top:1px solid var(--border);display:flex;align-items:center;flex-wrap:wrap;gap:10px}
.share-label{font-size:13px;font-weight:700;color:var(--ink3);margin-right:4px}
.share-btn{display:inline-flex;align-items:center;gap:7px;padding:9px 16px;border-radius:999px;font-size:13px;font-weight:700;border:1.5px solid var(--border);color:var(--ink2);background:#fff;transition:all var(--t)}
.share-btn:hover{border-color:var(--lime);color:var(--lime);background:var(--lime-light)}
.share-btn.copied{border-color:var(--lime);color:#5a7a00;background:var(--lime-light)}

.related{max-width:1180px;margin:64px auto 0}
.related h2{font-size:clamp(20px,2.4vw,26px);font-weight:800;color:var(--ink);margin-bottom:24px;text-align:center}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}

.post-cta{max-width:720px;margin:48px auto 0;padding:28px;border-radius:var(--r);background:var(--lime-light);text-align:center}
.post-cta h3{font-size:18px;font-weight:800;color:var(--ink);margin-bottom:8px}
.post-cta p{color:var(--ink2);font-size:14px;margin-bottom:16px}

/* ──────────────────────────────────────────────
   RESPONSIVE (compartido: header/footer)
────────────────────────────────────────────── */
@media(max-width:1024px){
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:900px){
  .menu,.nav-cta{display:none}
  .hamb-btn{display:flex}
  .related-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:600px){
  section{padding:56px 0}
  .foot-grid{grid-template-columns:1fr;text-align:center}
  .foot-logo img{margin:0 auto 14px}
  .foot-about{margin:0 auto 18px}
  .socials{justify-content:center}
  .related-grid{grid-template-columns:1fr}
  .breadcrumb{font-size:12px}
}