/* ==========================================================================
   PlantillaFactura — hoja de estilos compartida
   Concepto: papel de factura + tinta azul noche + verde contable
   ========================================================================== */

:root{
  --bg:#F3F0E7;
  --bg-2:#EAE6DA;
  --surface:#FFFFFF;
  --ink:#16222E;
  --ink-soft:#5A6573;
  --accent:#2F6F62;
  --accent-dark:#1F5147;
  --accent-tint:#E4EFEB;
  --gold:#C9962E;
  --gold-tint:#F7EDD3;
  --line:#DDD7C6;
  --radius:14px;
  --shadow:0 18px 40px -24px rgba(22,34,46,.35);
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"Inter",system-ui,sans-serif;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3{
  font-family:"Fraunces",Georgia,serif;
  font-weight:600;
  color:var(--ink);
  letter-spacing:-.015em;
  margin:0 0 .5em;
}
a{color:var(--accent);}
img{max-width:100%;}
:focus-visible{outline:2px solid var(--gold);outline-offset:3px;border-radius:4px;}

.wrap{max-width:1040px;margin:0 auto;padding-left:1.5rem;padding-right:1.5rem;}
article.wrap{max-width:760px;}

/* ---------- Cabecera ---------- */
header{
  position:sticky;top:0;z-index:50;
  background:rgba(243,240,231,.86);
  -webkit-backdrop-filter:saturate(1.4) blur(10px);
  backdrop-filter:saturate(1.4) blur(10px);
  border-bottom:1px solid var(--line);
}
.nav{
  display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;row-gap:.4rem;
  max-width:1040px;margin:0 auto;padding:.95rem 1.5rem;
}
.brand{
  font-family:"Fraunces",serif;font-weight:600;font-size:1.25rem;letter-spacing:-.01em;
  color:var(--ink);text-decoration:none;
}
.brand span{color:var(--accent);}
.nav nav a{
  margin-left:1.6rem;color:var(--ink-soft);text-decoration:none;font-size:.94rem;font-weight:500;
  padding:.3rem 0;border-bottom:2px solid transparent;transition:color .15s,border-color .15s;
}
.nav nav a:hover{color:var(--accent);border-color:var(--gold);}

/* ---------- Hero ---------- */
.hero{position:relative;padding-top:5rem;padding-bottom:3.6rem;border-bottom:1px solid var(--line);}
.kicker,.eyebrow{
  display:inline-flex;align-items:center;gap:.6rem;
  font-size:.74rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--accent);
  margin:0 0 1.1rem;
}
.kicker::before,.eyebrow::before{content:"";width:26px;height:2px;background:var(--gold);border-radius:2px;}
.hero h1{font-size:clamp(2.2rem,5vw,3.6rem);line-height:1.08;max-width:17ch;margin-bottom:1rem;}
.hero p{max-width:56ch;color:var(--ink-soft);font-size:1.08rem;margin:0;}

.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:3rem;align-items:center;}

/* Hoja de factura decorativa */
.sheet{
  position:relative;background:var(--surface);border:1px solid var(--line);border-radius:6px;
  padding:1.6rem 1.6rem 1.3rem;box-shadow:var(--shadow);transform:rotate(1.6deg);
  font-size:.82rem;color:var(--ink-soft);
}
.sheet::before{
  content:"";position:absolute;inset:8px -8px -8px 8px;z-index:-1;
  background:var(--bg-2);border:1px solid var(--line);border-radius:6px;transform:rotate(-2.4deg);
}
.sheet-head{display:flex;justify-content:space-between;align-items:baseline;border-bottom:2px solid var(--ink);padding-bottom:.6rem;margin-bottom:.9rem;}
.sheet-head b{font-family:"Fraunces",serif;font-size:1.05rem;color:var(--ink);letter-spacing:.02em;}
.sheet-row{display:flex;justify-content:space-between;padding:.42rem 0;border-bottom:1px dashed var(--line);}
.sheet-row span:last-child{font-variant-numeric:tabular-nums;color:var(--ink);}
.sheet-row.minus span:last-child{color:#A2402F;}
.sheet-total{display:flex;justify-content:space-between;align-items:baseline;margin-top:.9rem;padding-top:.7rem;border-top:2px solid var(--ink);}
.sheet-total b{font-family:"Fraunces",serif;font-size:1.5rem;color:var(--accent);}
.sheet-note{margin:.8rem 0 0;font-size:.72rem;color:var(--ink-soft);}

/* Cifras de referencia */
.ledger-mark{
  display:flex;margin-top:2.2rem;max-width:520px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);
}
.ledger-mark div{flex:1;padding:1.05rem 1.2rem;border-right:1px solid var(--line);}
.ledger-mark div:last-child{border-right:0;}
.ledger-mark strong{display:block;font-family:"Fraunces",serif;font-size:1.5rem;color:var(--accent);line-height:1.2;}
.ledger-mark small{color:var(--ink-soft);font-size:.78rem;}

/* ---------- Secciones ---------- */
section.cats,section.why,section.guides,section.steps{padding-top:4rem;padding-bottom:1rem;}
section h2{font-size:clamp(1.6rem,3vw,2.15rem);}
.section-intro{color:var(--ink-soft);max-width:60ch;margin:0 0 1.8rem;}

/* Lista de plantillas como tarjetas */
.cat-list{list-style:none;margin:1.8rem 0 0;padding:0;display:grid;grid-template-columns:repeat(2,1fr);gap:1rem;}
.cat-list li{
  position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:1.4rem 1.5rem 1.3rem;display:flex;flex-direction:column;gap:.35rem;
  transition:transform .2s,box-shadow .2s,border-color .2s;
}
.cat-list li:hover{transform:translateY(-3px);border-color:var(--gold);box-shadow:var(--shadow);}
.cat-list a{
  font-family:"Fraunces",serif;font-weight:600;font-size:1.15rem;color:var(--ink);text-decoration:none;line-height:1.3;
}
.cat-list a::after{content:"";position:absolute;inset:0;}       /* toda la tarjeta clicable */
.cat-list .desc{color:var(--ink-soft);font-size:.92rem;}
.cat-list .soon{color:var(--ink-soft);font-size:.85rem;font-style:italic;}

/* Bloques "por qué" / pasos */
.why-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;margin-top:1.8rem;}
.why-grid > div{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:1.5rem;
}
.why-grid h3{font-size:1.1rem;margin-bottom:.4rem;}
.why-grid p{margin:0;color:var(--ink-soft);font-size:.93rem;}
.num{
  display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:9px;
  background:var(--ink);color:var(--gold);font-family:"Fraunces",serif;font-weight:600;margin-bottom:.9rem;
}

/* Guías */
.guides-head{display:flex;justify-content:space-between;align-items:baseline;flex-wrap:wrap;gap:.5rem;}
.guides-head a{font-size:.92rem;font-weight:600;text-decoration:none;white-space:nowrap;}
.guide-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;margin-top:1.6rem;}
.guide-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:1.4rem;
  text-decoration:none;display:block;transition:transform .2s,box-shadow .2s,border-color .2s;
}
.guide-card:hover{transform:translateY(-3px);border-color:var(--gold);box-shadow:var(--shadow);}
.guide-card .tag{color:var(--accent);font-size:.7rem;font-weight:700;text-transform:uppercase;letter-spacing:.09em;}
.guide-card h3{font-size:1.08rem;margin:.55rem 0 .45rem;line-height:1.3;}
.guide-card p{margin:0;color:var(--ink-soft);font-size:.88rem;}

/* ---------- Artículos y páginas de contenido ---------- */
article{padding-top:3.5rem;padding-bottom:4rem;}
article h1{font-size:clamp(2rem,4.4vw,2.9rem);line-height:1.12;margin:0 0 .7rem;}
article h2{margin:2.4em 0 .5em;font-size:clamp(1.4rem,2.6vw,1.8rem);}
article h3{margin:1.8em 0 .4em;font-size:1.2rem;}
article p,article li{font-size:1.02rem;}
.lede{color:var(--ink-soft);font-size:1.12rem;max-width:58ch;}
.meta{color:var(--ink-soft);font-size:.86rem;margin:0 0 1.6rem;}

/* Cajas */
.download-box,.cta,.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:1.6rem;margin:2rem 0;
  box-shadow:var(--shadow);
}
.download-box p,.card p{margin:0 0 1rem;color:var(--ink-soft);font-size:.93rem;}
.card h2{font-size:1.2rem;margin:0 0 .5rem;}
.card{margin:0;}
.grid{display:grid;grid-template-columns:1.1fr .9fr;gap:1.25rem;margin-top:1.5rem;}
.email{display:inline-block;font-weight:600;word-break:break-all;}

.btn-row{display:flex;gap:.75rem;flex-wrap:wrap;}
.btn{
  display:inline-block;background:var(--accent);color:#fff;padding:.75rem 1.4rem;border-radius:999px;
  text-decoration:none;font-weight:600;font-size:.94rem;border:1px solid var(--accent);
  transition:background .2s,transform .15s;
}
.btn:hover{background:var(--accent-dark);transform:translateY(-1px);}
.btn.alt{background:transparent;color:var(--ink);border-color:var(--ink);}
.btn.alt:hover{background:var(--ink);color:#fff;}

/* Tablas */
.table-wrap{overflow-x:auto;margin:1.5rem 0;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);}
table{width:100%;border-collapse:collapse;font-size:.93rem;}
table.rate{margin:1.5rem 0;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--surface);}
th,td{padding:.75rem 1rem;text-align:left;border-bottom:1px solid var(--line);}
th{background:var(--bg-2);color:var(--ink);font-weight:600;font-size:.82rem;text-transform:uppercase;letter-spacing:.05em;}
tr:last-child td{border-bottom:0;}
tbody tr:nth-child(even) td,table.rate tr:nth-child(even) td{background:#FBFAF6;}

/* Lista de requisitos */
.req-list{list-style:none;margin:1.5rem 0;padding:0;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;}
.req-list li{border-bottom:1px solid var(--line);padding:1rem 1.3rem;display:flex;gap:1.2rem;}
.req-list li:last-child{border-bottom:0;}
.req-list b{flex:0 0 12rem;color:var(--ink);}
.req-list span{color:var(--ink-soft);}

/* FAQ */
.faq{margin-top:3rem;}
.faq dt{font-weight:600;margin-top:1.4rem;padding-left:1rem;border-left:3px solid var(--gold);}
.faq dd{margin:.35rem 0 0 1rem;color:var(--ink-soft);}

/* Aviso informativo */
.note{background:var(--gold-tint);border:1px solid #E6D3A0;border-radius:var(--radius);padding:1rem 1.2rem;font-size:.92rem;color:#5A4514;margin:1.5rem 0;}

/* ---------- Pie ---------- */
footer{margin-top:4rem;background:var(--ink);color:#AEB8C4;padding:2.4rem 0;font-size:.86rem;}
footer .wrap{display:flex;justify-content:space-between;flex-wrap:wrap;gap:1rem;max-width:1040px;}
footer a{color:#AEB8C4;text-decoration:none;margin-right:1.2rem;}
footer a:hover{color:var(--gold);}

/* ---------- Responsive ---------- */
@media (max-width:820px){
  .hero-grid{grid-template-columns:1fr;gap:2.4rem;}
  .sheet{transform:none;max-width:420px;}
  .sheet::before{display:none;}
  .grid{grid-template-columns:1fr;}
}
@media (max-width:680px){
  .hero{padding-top:3.2rem;padding-bottom:2.6rem;}
  .cat-list,.why-grid,.guide-grid{grid-template-columns:1fr;}
  .req-list li{flex-direction:column;gap:.2rem;}
  .nav nav a{margin:0 1.1rem 0 0;}
  .ledger-mark{flex-direction:column;}
  .ledger-mark div{border-right:0;border-bottom:1px solid var(--line);}
  .ledger-mark div:last-child{border-bottom:0;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;scroll-behavior:auto !important;}
}

/* ---------- Ajustes del hero (paso 2) ---------- */
.kicker,.eyebrow{display:flex;width:fit-content;}
.hero .kicker{margin:0 0 1.1rem;}
.hero .sheet-note{font-size:.72rem;max-width:none;margin:.8rem 0 0;}
.sheet{box-shadow:9px 9px 0 -1px var(--bg-2),9px 9px 0 0 var(--line),var(--shadow);}
.sheet::before{display:none;}
@media (max-width:820px){
  .sheet{box-shadow:var(--shadow);}
}