/* ============================================================
   styles.css — Base responsive (mobile-first).
   Variables de color se inyectan desde head.php (:root).
   Sistema de espaciado en grid de 8px. Margenes y grids
   AJUSTADOS por separado para movil y desktop.
   ============================================================ */

:root{
  --space-1:8px; --space-2:16px; --space-3:24px; --space-4:32px;
  --space-5:48px; --space-6:64px; --space-7:96px;
  --radius:12px; --radius-sm:8px;
  --container:1140px; --container-pad:16px;      /* px FIX, mai % (regla d'or) */
  --fs-base:16px; --lh:1.6;
  --ring:0 0 0 3px color-mix(in srgb, var(--color-primary) 40%, transparent);
}

*,*::before,*::after{box-sizing:border-box}
html{font-size:var(--fs-base);scroll-behavior:smooth}
body{margin:0;font-family:'Google Sans Text','Onest',system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  line-height:var(--lh);color:var(--color-dark);background:var(--color-light);
  -webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--color-primary)}
h1,h2,h3{line-height:1.2;margin:0 0 var(--space-2)}
h1{font-size:clamp(1.9rem,5vw,3rem)}
h2{font-size:clamp(1.5rem,3.5vw,2.2rem)}
h3{font-size:1.2rem}
p{margin:0 0 var(--space-2)}

/* ── Layout ───────────────────────────────────────────────── */
.container{width:100%;max-width:var(--container);margin-inline:auto;
  padding-inline:var(--container-pad)}
.narrow{max-width:720px}
.center{text-align:center}
.section{padding-block:var(--space-5)}          /* movil: respiracion contenida */
.section-alt{background:#f4f5f7}

/* Grids: 1 columna en movil, se expanden en desktop */
.grid{display:grid;gap:var(--space-2)}
.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}

/* ── Skip link (accesibilidad) ────────────────────────────── */
.skip-link{position:absolute;left:-9999px;top:0;background:var(--color-primary);
  color:#fff;padding:var(--space-1) var(--space-2);z-index:1000;border-radius:0 0 var(--radius-sm) 0}
.skip-link:focus{left:0}

/* ── Header / nav ─────────────────────────────────────────── */
.site-header{position:sticky;top:0;z-index:50;background:#fff;
  border-bottom:1px solid #eee}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;
  min-height:64px}
.brand{font-weight:800;font-size:1.15rem;text-decoration:none;color:var(--color-dark)}
.main-nav ul{list-style:none;margin:0;padding:0}
.main-nav a{display:block;padding:var(--space-1) 0;text-decoration:none;color:var(--color-dark)}
.main-nav a[aria-current="page"]{color:var(--color-primary);font-weight:700}
.nav-toggle{display:inline-flex;flex-direction:column;gap:5px;background:none;
  border:0;cursor:pointer;padding:10px}
.nav-toggle span{width:24px;height:2px;background:var(--color-dark);transition:.25s}

/* nav movil desplegable */
.main-nav{position:absolute;left:0;right:0;top:64px;background:#fff;
  border-bottom:1px solid #eee;max-height:0;overflow:hidden;transition:max-height .3s ease}
.main-nav.open{max-height:calc(100dvh - 64px);overflow-y:auto;overscroll-behavior:contain}
.main-nav ul{padding:var(--space-2) var(--container-pad)}
.main-nav li+li{border-top:1px solid #f1f1f1}
.main-nav a{padding:var(--space-2) 0}

/* ── Hero ─────────────────────────────────────────────────── */
.hero{padding-block:var(--space-5);background:linear-gradient(135deg,
  var(--color-primary),color-mix(in srgb,var(--color-primary) 60%,#000))}
.hero h1,.hero .lead{color:#fff}
.hero .lead{font-size:1.15rem;max-width:48ch}
.hero-cta{display:flex;flex-wrap:wrap;gap:var(--space-2);margin-top:var(--space-3)}

/* ── Botones (tap target >=44px) ──────────────────────────── */
.btn{display:inline-flex;align-items:center;justify-content:center;
  min-height:44px;padding:0 var(--space-3);border-radius:var(--radius-sm);
  font-weight:600;text-decoration:none;border:2px solid transparent;cursor:pointer;
  transition:transform .15s ease,background .2s ease,opacity .2s ease}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--color-primary);color:#fff}
.btn-primary:hover{opacity:.92}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.6)}
.section .btn-ghost{color:var(--color-primary);border-color:var(--color-primary)}

/* ── Cards ────────────────────────────────────────────────── */
.card{background:#fff;border:1px solid #ececec;border-radius:var(--radius);
  padding:var(--space-3)}

/* ── Breadcrumbs ──────────────────────────────────────────── */
.breadcrumbs ol{display:flex;flex-wrap:wrap;gap:var(--space-1);list-style:none;
  margin:0;padding-block:var(--space-2);font-size:.9rem}
.breadcrumbs li+li::before{content:"›";margin-right:var(--space-1);color:#999}
.breadcrumbs a{text-decoration:none}

/* ── Formularios ──────────────────────────────────────────── */
.form{margin-top:var(--space-3)}
.field{margin-bottom:var(--space-3)}
.field label{display:block;font-weight:600;margin-bottom:6px}
.field input,.field textarea{width:100%;padding:12px 14px;font-size:1rem;
  border:1px solid #cbd5e1;border-radius:var(--radius-sm);font-family:inherit}
.field input:focus,.field textarea:focus{outline:2px solid var(--color-primary);outline-offset:2px;
  border-color:var(--color-primary);box-shadow:var(--ring)}
.field [aria-invalid="true"]{border-color:#f87171}
.err{display:block;color:#f87171;font-size:.85rem;margin-top:4px}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.alert{padding:var(--space-2);border-radius:var(--radius-sm);margin-bottom:var(--space-3)}
.alert-ok{background:#dcfce7;color:#166534;border:1px solid #86efac}

/* ── Footer ───────────────────────────────────────────────── */
.site-footer{background:var(--color-dark);color:#cbd5e1;padding-block:var(--space-5) var(--space-3);margin-top:var(--space-6)}
.site-footer a{color:#cbd5e1;text-decoration:none}
.site-footer a:hover{color:#fff}
.footer-grid{display:grid;gap:var(--space-3);grid-template-columns:1fr}
.footer-brand{color:#fff;font-weight:800;font-size:1.1rem}
.site-footer ul{list-style:none;margin:0;padding:0}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);margin-top:var(--space-3);
  padding-top:var(--space-3);font-size:.85rem}

/* ── Volver arriba ────────────────────────────────────────── */
.back-to-top{position:fixed;right:18px;bottom:18px;z-index:60;
  width:48px;height:48px;border-radius:50%;border:0;cursor:pointer;
  background:var(--color-primary);color:#fff;display:grid;place-items:center;
  box-shadow:0 4px 14px rgba(0,0,0,.25);opacity:0;transform:translateY(12px);
  transition:opacity .25s,transform .25s}
.back-to-top.show{opacity:1;transform:none}
.back-to-top:focus-visible{outline:none;box-shadow:var(--ring),0 4px 14px rgba(0,0,0,.25)}

/* ── Banner cookies ───────────────────────────────────────── */
.cookie-banner{position:fixed;left:12px;right:12px;bottom:12px;z-index:70;
  background:#fff;border:1px solid #e5e7eb;border-radius:var(--radius);
  box-shadow:0 8px 30px rgba(0,0,0,.18);padding:var(--space-2);
  display:flex;flex-direction:column;gap:var(--space-2)}
.cookie-banner[hidden]{display:none}
.cookie-banner p{margin:0;font-size:.9rem}
.cookie-actions{display:flex;flex-wrap:wrap;gap:var(--space-1);justify-content:flex-end}
.cookie-actions .btn{min-height:40px;padding:0 var(--space-2);font-size:.9rem}
.cookie-actions .btn-ghost{color:var(--color-dark);border-color:#cbd5e1}

/* =============================================================
   DESKTOP / TABLET — se ajustan margenes, grids y espaciados
   (NO se hereda tal cual del movil; cada version compensada).
   ============================================================= */
@media (min-width:768px){
  :root{--container-pad:24px}                 /* desktop: padding fijo, no % */
  .section{padding-block:var(--space-7)}      /* mas aire en pantalla grande */
  .hero{padding-block:var(--space-7)}
  .grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}  /* 2 col a tablet, evita targetes estretes 768-900 */
  .grid{gap:var(--space-3)}
  .footer-grid{grid-template-columns:2fr 1fr 1fr;gap:var(--space-5)}

  /* nav horizontal: desactiva el desplegable movil */
  .nav-toggle{display:none}
  .main-nav{position:static;max-height:none;border:0;background:none}
  .main-nav ul{display:flex;gap:var(--space-3);padding:0}
  .main-nav li+li{border:0}
  .main-nav a{padding:var(--space-1) 0}

  .cookie-banner{left:auto;right:24px;bottom:24px;max-width:420px}
  .back-to-top{right:24px;bottom:24px}
}
@media (min-width:1024px){
  .grid-4{grid-template-columns:repeat(4,minmax(0,1fr));gap:var(--space-4)}  /* 4 col nomes en desktop ample */
}

/* Respeta usuarios que prefieren menos movimiento */
@media (prefers-reduced-motion:reduce){
  *{scroll-behavior:auto!important;transition:none!important}
}

/* ============================================================
   XERPIA — Tema fosc (capa per sobre de la base).
   Fons fosc, accent teal + violeta de marca. Mobile-first.
   Padding lateral FIX en px (regla d'or): 16px mobil / 24px tablet+.
   ============================================================ */
:root{
  --bg:#0a0e17;
  --bg-2:#0e1422;
  --card:#141c2e;
  --card-2:#182238;
  --text:#e6ebf5;
  --muted:#93a0b8;
  --brand:#7c5cff;         /* violeta */
  --accent:#2dd4bf;        /* teal */
  --border:rgba(255,255,255,.08);
}

body{background:var(--bg);color:var(--text)}
a{color:var(--accent)}
h1,h2,h3,h4{color:#fff}

/* Fons amb un lleuger degradat radial de marca */
body{
  background:
    radial-gradient(700px 380px at 12% -5%, rgba(124,92,255,.16), transparent 60%),
    radial-gradient(620px 340px at 92% 4%, rgba(45,212,191,.12), transparent 55%),
    var(--bg);
  background-attachment:fixed;
}

/* ── Header fosc ─────────────────────────────────────────── */
.site-header{background:rgba(10,14,23,.82);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--border)}
.brand{color:#fff;letter-spacing:.5px}
.brand::after{content:"";display:inline-block;width:7px;height:7px;margin-left:6px;
  border-radius:50%;background:var(--accent);vertical-align:middle;
  box-shadow:0 0 10px var(--accent)}
.main-nav a{color:var(--text)}
.main-nav a:hover{color:#fff}
.main-nav a[aria-current="page"]{color:var(--accent)}
.nav-toggle span{background:#fff}
@media (max-width:767px){
  .main-nav{background:var(--bg-2);border-bottom:1px solid var(--border)}
  .main-nav li+li{border-top:1px solid var(--border)}
  /* Menu tancat: fora de l'ordre de tabulacio (no nomes max-height:0) */
  .main-nav:not(.open){visibility:hidden}
  .main-nav.open{visibility:visible}
}
/* Hamburguesa: tap target >=44px */
.nav-toggle{padding:12px;min-width:44px;min-height:44px;align-items:center}

/* ── Tipografia utilitaria ──────────────────────────────── */
.eyebrow{display:inline-flex;align-items:center;gap:8px;
  border:1px solid rgba(45,212,191,.25);background:rgba(45,212,191,.08);
  color:var(--accent);font-size:.8rem;font-weight:600;
  padding:6px 14px;border-radius:999px;margin-bottom:16px}
.eyebrow.brand{border-color:rgba(124,92,255,.3);background:rgba(124,92,255,.1);color:#b7a6ff}
.gradient-text{background:linear-gradient(100deg,var(--accent),var(--brand));
  -webkit-background-clip:text;background-clip:text;color:transparent}
.lead{color:var(--muted)}
.muted{color:var(--muted)}
.center-block{max-width:640px;margin-inline:auto}

/* ── Hero fosc ──────────────────────────────────────────── */
.hero{background:none;padding-block:var(--space-6) var(--space-5);text-align:center;
  position:relative;overflow:hidden}
.hero h1{font-size:clamp(2.1rem,7vw,3.6rem);margin-bottom:16px}
.hero .lead{color:var(--muted);font-size:1.1rem;margin-inline:auto;max-width:44ch}
.hero-cta{justify-content:center}
.chips{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:28px}
.chip{display:inline-flex;align-items:center;gap:8px;font-size:.85rem;color:var(--text);
  border:1px solid var(--border);background:rgba(255,255,255,.04);
  padding:9px 14px;border-radius:12px}
.chip svg{width:16px;height:16px;color:var(--accent);flex:0 0 auto}

/* ── Botons ─────────────────────────────────────────────── */
.btn-primary{background:linear-gradient(100deg,var(--accent),var(--brand));color:#000;
  font-weight:700;border:0;box-shadow:0 8px 24px -8px rgba(124,92,255,.6)}
.btn-primary:hover{opacity:1;filter:brightness(1.08)}
.btn-ghost{color:var(--text);border-color:var(--border);background:rgba(255,255,255,.03)}
.section .btn-ghost{color:var(--text);border-color:var(--border)}
.btn-ghost:hover{border-color:var(--accent);color:#fff}

/* ── Seccions ───────────────────────────────────────────── */
.section-alt{background:var(--bg-2)}
.section-head{text-align:center;max-width:640px;margin:0 auto var(--space-4)}
.section-head p{color:var(--muted)}

/* ── Targetes / glass ───────────────────────────────────── */
.card{background:var(--card);border:1px solid var(--border);border-radius:16px;
  padding:var(--space-3);transition:transform .2s ease,border-color .2s ease}
.card:hover{transform:translateY(-3px);border-color:rgba(45,212,191,.35)}
.card h3{font-size:1.1rem;margin-bottom:8px}
.card p{color:var(--muted);margin:0}
.icon-box{display:grid;place-items:center;width:44px;height:44px;border-radius:12px;
  background:rgba(45,212,191,.1);color:var(--accent);margin-bottom:16px}
.icon-box svg{width:22px;height:22px}
.card.brand-accent .icon-box{background:rgba(124,92,255,.12);color:#b7a6ff}
.card.row{display:flex;gap:16px;align-items:flex-start}
.card.row .icon-box{margin-bottom:0;flex:0 0 auto}
/* Targeta-enllac (area) */
a.card{text-decoration:none;color:inherit;display:flex;flex-direction:column}
a.card.row{flex-direction:row}
a.card h2,a.card h3{color:#fff}
.area-card{position:relative}
.card-link{margin-top:auto;padding-top:14px;display:inline-flex;align-items:center;gap:6px;
  color:var(--accent);font-weight:600;font-size:.9rem}
a.card:hover .card-link{gap:9px}
a.card:hover .card-link svg{transform:translateX(1px)}

/* ── Llista numerada (estructura web) ───────────────────── */
.steplist{list-style:none;margin:0;padding:0;display:grid;gap:16px;max-width:760px;margin-inline:auto}
.steplist li{display:flex;gap:16px;align-items:flex-start;background:var(--card);
  border:1px solid var(--border);border-radius:14px;padding:var(--space-3)}
.step-num{flex:0 0 auto;width:40px;height:40px;border-radius:50%;display:grid;place-items:center;
  font-weight:800;color:var(--accent);border:1px solid rgba(45,212,191,.35);
  background:rgba(45,212,191,.08)}
.step-num.brand{color:#b7a6ff;border-color:rgba(124,92,255,.4);background:rgba(124,92,255,.1)}
.step-body h3{font-size:1.05rem;margin-bottom:4px}
.step-body p{color:var(--muted);margin:0}
.tag{display:inline-block;font-size:.68rem;font-weight:800;letter-spacing:.06em;
  text-transform:uppercase;color:var(--accent);background:rgba(45,212,191,.12);
  border-radius:999px;padding:3px 9px;margin-left:8px;vertical-align:middle}

/* ── Nota destacada ─────────────────────────────────────── */
.note{max-width:760px;margin:var(--space-3) auto 0;border-radius:14px;
  border:1px solid rgba(45,212,191,.18);background:rgba(45,212,191,.05);
  padding:var(--space-3);color:#cdeee7}
.note strong{color:#fff}

/* ── Timeline de terminis ───────────────────────────────── */
.timeline{max-width:760px;margin-inline:auto;display:grid;gap:20px}
.tl-item{display:flex;gap:16px;align-items:flex-start}
.tl-dot{flex:0 0 auto;width:46px;height:46px;border-radius:50%;display:grid;place-items:center;
  font-weight:800;font-size:.8rem;color:var(--accent);
  border:1px solid rgba(45,212,191,.35);background:rgba(45,212,191,.08)}

/* ── Preus ──────────────────────────────────────────────── */
.price-card{max-width:640px;margin-inline:auto;background:var(--card);
  border:1px solid rgba(45,212,191,.35);border-radius:20px;padding:var(--space-4);
  text-align:center;position:relative}
.price-badge{position:absolute;top:-14px;left:50%;transform:translateX(-50%);
  background:linear-gradient(100deg,var(--accent),var(--brand));color:#000;
  font-size:.7rem;font-weight:800;text-transform:uppercase;letter-spacing:.05em;
  padding:5px 14px;border-radius:999px;white-space:nowrap}
.price{font-size:clamp(2.6rem,9vw,3.4rem);font-weight:800;line-height:1;color:var(--text)}
.price small{display:block;font-size:.8rem;font-weight:500;color:var(--muted);margin-top:6px}
.price-list{list-style:none;margin:var(--space-3) 0 0;padding:0;display:grid;gap:10px;text-align:left}
.price-list li{display:flex;gap:10px;align-items:flex-start;color:var(--text);font-size:.95rem}
.price-list li::before{content:"";flex:0 0 auto;width:18px;height:18px;margin-top:2px;border-radius:50%;
  background:rgba(45,212,191,.15) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%232dd4bf' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E") center/12px no-repeat}
@media (min-width:768px){.price-list{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}}

.upsells{max-width:820px;margin:var(--space-4) auto 0;display:grid;gap:14px}
@media (min-width:768px){.upsells{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}}
.upsell{display:flex;gap:12px;align-items:flex-start;background:var(--card);
  border:1px solid var(--border);border-radius:14px;padding:var(--space-3)}
.upsell .icon-box{background:rgba(124,92,255,.12);color:#b7a6ff;width:40px;height:40px}
.upsell h4{margin:0 0 3px;font-size:.98rem;color:#fff;display:flex;justify-content:space-between;gap:8px}
.upsell .u-price{color:var(--accent);font-weight:800;white-space:nowrap}
.upsell p{margin:0;color:var(--muted);font-size:.85rem}

/* ── Banda CTA ──────────────────────────────────────────── */
.cta-band{text-align:center;max-width:640px;margin-inline:auto}
.cta-band .hero-cta{justify-content:center;margin-top:var(--space-3)}

/* ── Feed placeholder ───────────────────────────────────── */
.feed-ph{border:1px dashed var(--border);border-radius:16px;background:rgba(255,255,255,.02);
  padding:var(--space-4);text-align:center;color:var(--muted);max-width:760px;margin-inline:auto}
.feed-ph svg{width:32px;height:32px;color:var(--accent);margin-bottom:10px}

/* ── Formularis foscos ──────────────────────────────────── */
.field label{color:var(--text)}
.field input,.field textarea{background:var(--card);border-color:var(--border);color:var(--text)}
.field input::placeholder,.field textarea::placeholder{color:#8a97ad}
.alert-ok{background:rgba(45,212,191,.12);color:#8ff0e0;border-color:rgba(45,212,191,.4)}
.alert-err{background:rgba(248,113,113,.12);color:#fecaca;border:1px solid rgba(248,113,113,.4)}
.consent{display:flex;gap:10px;align-items:flex-start;font-size:.85rem;color:var(--muted)}
.consent input[type="checkbox"]{width:22px;height:22px;flex:0 0 auto;margin-top:1px}

/* ── Footer fosc ────────────────────────────────────────── */
.site-footer{background:#070a11;border-top:1px solid var(--border);margin-top:var(--space-6)}
.site-footer a{color:var(--muted)}
.site-footer a:hover{color:#fff}
.footer-brand{color:#fff}
@media (min-width:768px){
  :root{--container-pad:24px}
  .footer-grid{grid-template-columns:2fr 1fr 1fr 1fr}
}

/* ── Breadcrumbs foscos ─────────────────────────────────── */
.breadcrumbs a{color:var(--muted)}
.breadcrumbs li+li::before{color:#4a5568}

/* ── Banda d'institucions ───────────────────────────────── */
.logo-band{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:12px;
  justify-content:center}
.logo-band li{border:1px solid var(--border);background:rgba(255,255,255,.03);
  border-radius:10px;padding:10px 16px;font-size:.9rem;color:var(--muted);font-weight:600}

/* ── Testimonis ─────────────────────────────────────────── */
.testi{margin:0;background:var(--card);border:1px solid var(--border);border-radius:16px;
  padding:var(--space-3);display:flex;flex-direction:column;gap:14px}
.testi blockquote{margin:0;color:var(--text);font-size:.95rem;line-height:1.6;position:relative;
  padding-top:22px}
.testi blockquote::before{content:"\201C";position:absolute;top:-6px;left:-2px;
  font-size:2.4rem;line-height:1;color:var(--accent);opacity:.6}
.testi figcaption{display:flex;flex-direction:column;gap:2px;border-top:1px solid var(--border);
  padding-top:12px}
.testi figcaption strong{color:#fff;font-size:.95rem}
.testi figcaption span{color:var(--muted);font-size:.82rem}

/* ── Llista d'objectius amb check ───────────────────────── */
.check-list{list-style:none;margin:0 auto;padding:0;max-width:760px;display:grid;gap:12px}
@media (min-width:768px){.check-list{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}}
.check-list li{display:flex;gap:10px;align-items:flex-start;color:var(--text);font-size:.95rem;
  background:var(--card);border:1px solid var(--border);border-radius:12px;padding:14px 16px}
.check-list li svg{flex:0 0 auto;color:var(--accent);margin-top:2px}

/* ── IA Labs (video cards) ──────────────────────────────── */
.video-card{padding:0;overflow:hidden}
.video-card h3,.video-card p{padding-inline:var(--space-3)}
.video-card h3{margin-top:var(--space-2)}
.video-card p{padding-bottom:var(--space-3)}
.video-thumb{aspect-ratio:16/9;display:grid;place-items:center;
  background:linear-gradient(135deg,rgba(124,92,255,.25),rgba(45,212,191,.2));color:#fff}
.video-thumb svg{opacity:.9}

/* ── Banner de cookies (fosc, llegible) ─────────────────── */
.cookie-banner{background:var(--card);border:1px solid var(--border);color:var(--text);
  box-shadow:0 8px 30px rgba(0,0,0,.5)}
.cookie-banner p{color:var(--text)}
.cookie-banner a{color:var(--brand);text-decoration:underline}  /* lima: llegible sobre el banner navy */
.cookie-actions .btn{min-height:44px}          /* tap target */
.cookie-actions .btn-ghost{color:var(--text);border-color:var(--border)}
.cookie-actions .btn-primary{color:#000}

/* ── Tap targets del footer (>=44px comodes) ────────────── */
.site-footer nav a{display:inline-block;padding:8px 0}

/* ── Boto "tornar amunt": invisible = fora de tabulacio ─── */
.back-to-top{visibility:hidden}
.back-to-top.show{visibility:visible}

/* Focus visible coherent en fosc */
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{
  outline:2px solid var(--accent);outline-offset:2px}