/* ==========================================================================
   site.css — sistema unificado calculadorapensionalimenticia.com
   Reemplaza: article.css + estilo.css + CSS inline de home/kit
   Paleta: cream paper + ink dark + accent turquesa + gold
   Breakpoints: 480 / 640 / 768 / 900
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=DM+Serif+Display:ital@0;1&family=DM+Sans:wght@300;400;500;600&family=JetBrains+Mono:wght@400;500;600&display=swap');

/* ---------- Reset & tokens ---------- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --ink:#1a1a2e;
  --ink-soft:#4a4a6a;
  --paper:#f7f5f0;
  --cream:#eeeae0;
  --accent:#c0392b;
  --turquoise:#0d9488;
  --gold:#d4a843;
  --white:#fff;
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 8px 40px rgba(26,26,46,.10);
  --shadow-sm:0 2px 12px rgba(26,26,46,.06);
  --maxw:1080px;
  --maxw-article:760px;
  --header-h:64px;
  --font-body:'DM Sans',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  --font-display:'DM Serif Display',Georgia,serif;
  --font-mono:'JetBrains Mono',ui-monospace,SFMono-Regular,Menlo,monospace;
}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--font-body);background:var(--paper);color:var(--ink);line-height:1.6;min-height:100vh;overflow-x:hidden}
img,svg,video{max-width:100%;height:auto;display:block}
a{color:var(--accent);text-decoration:none;transition:color .15s}
a:hover{color:#a93226}

/* ---------- Breadcrumb ---------- */
.breadcrumb{padding:1rem 2rem;font-size:.78rem;color:var(--ink-soft);max-width:1080px;margin:0 auto;background:var(--paper);border-bottom:1px solid var(--cream)}
.breadcrumb a{color:var(--accent);text-decoration:none}
.breadcrumb a:hover{text-decoration:underline}
.breadcrumb span.sep{margin:0 .4rem;color:var(--ink-soft)}
.breadcrumb span.current{color:var(--ink);font-weight:500}

/* ---------- Header ---------- */
header{
  background:var(--ink);
  padding:0 1.5rem;
  display:flex;align-items:center;justify-content:space-between;
  height:var(--header-h);
  position:sticky;top:0;z-index:100;
  box-shadow:0 2px 20px rgba(0,0,0,.25);
}
header nav{display:flex;gap:1.2rem;align-items:center;flex-wrap:wrap}
header nav a{color:rgba(255,255,255,.72);font-size:.85rem;font-weight:500;white-space:nowrap}
header nav a:hover{color:var(--gold)}
.logo{font-family:var(--font-body);font-size:.95rem;font-weight:300;letter-spacing:.06em;text-transform:uppercase;color:rgba(255,255,255,.6);display:flex;align-items:center;gap:.2rem}
.logo strong{font-weight:700;color:#fff}
.logo .tld{color:var(--gold);font-weight:400;font-size:.9em}

/* ---------- Hero (blog / artículo) ---------- */
.hero{background:var(--ink);color:#fff;padding:3.5rem 1.5rem 5rem;position:relative;overflow:hidden}
.hero::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse at 70% 50%,rgba(13,148,136,.18) 0%,transparent 70%);pointer-events:none}
.hero-cat{display:inline-block;font-size:.72rem;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--gold);border:1px solid rgba(212,168,67,.4);padding:5px 14px;border-radius:20px;margin-bottom:1.2rem}
.hero h1{font-family:var(--font-display);font-size:clamp(1.8rem,4vw,3rem);line-height:1.15;max-width:var(--maxw-article);margin-bottom:1rem}
.hero-meta{font-size:.82rem;color:rgba(255,255,255,.55);display:flex;flex-wrap:wrap;gap:1.2rem;align-items:center}
.hero-meta .author{display:flex;align-items:center;gap:.5rem}
.hero-meta .author-avatar{width:28px;height:28px;border-radius:50%;background:linear-gradient(135deg,var(--gold) 0%,#b8902e 100%);color:var(--ink);display:flex;align-items:center;justify-content:center;font-family:var(--font-display);font-size:.85rem;font-weight:700}
.hero-meta a{color:var(--gold)}
.hero-meta a:hover{text-decoration:underline}

/* ---------- Layout contenedor artículo (blog) ---------- */
.article-wrap{max-width:var(--maxw-article);margin:-2.5rem auto 4rem;padding:0 1.5rem;position:relative;z-index:10}
.article-card{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);padding:2.5rem 3rem}
.article-card h2{font-family:var(--font-display);font-size:1.5rem;color:var(--ink);margin:2.2rem 0 .8rem;padding-top:1.5rem;border-top:1px solid var(--cream)}
.article-card h2:first-child{border-top:none;padding-top:0;margin-top:0}
.article-card h3{font-family:var(--font-display);font-size:1.15rem;color:var(--ink);margin:1.5rem 0 .6rem}
.article-card p{font-size:.97rem;color:var(--ink-soft);line-height:1.85;margin-bottom:1rem}
.article-card ul,.article-card ol{font-size:.97rem;color:var(--ink-soft);line-height:1.85;margin:.5rem 0 1rem 1.5rem}
.article-card li{margin-bottom:.4rem}
.article-card strong{color:var(--ink)}
.article-card a{color:var(--accent)}
.article-card blockquote{border-left:4px solid var(--gold);padding:.8rem 1.2rem;margin:1.4rem 0;background:var(--paper);border-radius:0 12px 12px 0;font-style:italic;color:var(--ink-soft);font-size:.95rem;line-height:1.7}
p.intro{font-size:1.06rem;line-height:1.8;color:var(--ink);border-left:4px solid var(--gold);padding-left:1.1rem;margin-bottom:1.8rem}
.info-box{background:var(--paper);border-left:4px solid var(--gold);border-radius:0 12px 12px 0;padding:1.2rem 1.5rem;margin:1.5rem 0;font-size:.92rem;line-height:1.7;color:var(--ink-soft)}
.info-box strong{color:var(--ink)}
.warn-box{background:rgba(192,57,43,.05);border:1px solid rgba(192,57,43,.15);border-radius:12px;padding:1.2rem 1.5rem;margin:1.5rem 0;font-size:.92rem;line-height:1.7;color:var(--ink-soft)}
.warn-box strong{color:var(--accent)}
table{width:100%;border-collapse:collapse;margin:1rem 0;font-size:.88rem}
th,td{padding:.7rem .8rem;text-align:left;border-bottom:1px solid var(--cream);color:var(--ink-soft)}
th{background:var(--paper);color:var(--ink);font-weight:600;font-size:.82rem;text-transform:uppercase;letter-spacing:.04em}
.formula{background:var(--paper);border-left:4px solid var(--turquoise);border-radius:0 12px 12px 0;padding:1.1rem 1.4rem;margin:1.4rem 0;font-family:var(--font-mono);font-size:.9rem;line-height:1.8;color:var(--ink)}

/* ---------- CTA + relacionados + autor ---------- */
.cta-box{background:linear-gradient(135deg,var(--ink) 0%,#2c2c54 100%);border-radius:var(--radius);padding:2rem;margin:2.5rem 0;text-align:center;color:#fff}
.cta-box p{color:rgba(255,255,255,.7);margin-bottom:1rem;font-size:.92rem}
.cta-box a,.btn-primary{display:inline-block;background:var(--turquoise);color:#fff;padding:.85rem 2rem;border-radius:var(--radius-sm);font-weight:600;font-size:.95rem;transition:background .2s,transform .15s;text-decoration:none}
.cta-box a:hover,.btn-primary:hover{background:#0f766e;color:#fff;transform:translateY(-1px)}
.related{margin-top:3rem;padding-top:2rem;border-top:1px solid var(--cream)}
.related h3{font-family:var(--font-display);font-size:1.2rem;margin-bottom:1rem;color:var(--ink)}
.related-links{display:flex;flex-direction:column;gap:.6rem}
.related-links a{font-size:.92rem;color:var(--accent);padding:.5rem 0;border-bottom:1px solid var(--cream)}
.author-bio{display:flex;gap:1rem;align-items:flex-start;background:var(--paper);border-radius:12px;padding:1.2rem;margin-top:2.5rem;font-size:.88rem;line-height:1.6}
.author-bio .avatar{width:50px;height:50px;border-radius:50%;background:linear-gradient(135deg,var(--ink) 0%,#2c2c54 100%);color:var(--gold);display:flex;align-items:center;justify-content:center;font-family:var(--font-display);font-size:1.3rem;flex-shrink:0}
.author-bio strong{display:block;color:var(--ink);margin-bottom:.2rem}
.author-bio span{color:var(--ink-soft);font-size:.82rem;display:block;margin-bottom:.3rem}
.fecha-actualizacion{font-size:.8rem;color:var(--ink-soft);opacity:.8;margin-top:2rem;padding-top:1rem;border-top:1px solid var(--cream)}

/* ---------- Footer (unificado) ---------- */
footer{background:var(--ink);color:rgba(255,255,255,.5);padding:2.5rem 1.5rem 2rem;font-size:.82rem;line-height:2}
footer a{color:var(--gold);text-decoration:none}
footer a:hover{text-decoration:underline}
.footer-inner{max-width:var(--maxw);margin:0 auto}
.footer-grid{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:2rem;margin-bottom:1.8rem}
.footer-brand .logo{margin-bottom:.6rem}
.footer-brand p{font-size:.8rem;color:rgba(255,255,255,.45);line-height:1.6}
.footer-col h4{color:#fff;font-size:.82rem;text-transform:uppercase;letter-spacing:.06em;margin-bottom:.7rem;font-weight:600}
.footer-col ul{list-style:none;margin:0;padding:0}
.footer-col li{margin-bottom:.35rem;font-size:.82rem}
.footer-legal{text-align:center;font-size:.78rem;line-height:1.9;border-top:1px solid rgba(255,255,255,.1);padding-top:1.2rem}
.footer-links{display:flex;justify-content:center;gap:1.2rem;margin-bottom:.5rem;flex-wrap:wrap}
.legal-links{display:flex!important;flex-wrap:wrap;justify-content:center;gap:.3rem .8rem;margin-top:.4rem}
.legal-links a{margin:0!important;white-space:normal;word-break:break-word}

/* ---------- Botones / chips ---------- */
.btn{display:inline-block;padding:.65rem 1.4rem;border-radius:var(--radius-sm);font-weight:600;font-size:.92rem;text-decoration:none;transition:all .15s;cursor:pointer;border:0;font-family:inherit}
.btn-ghost{background:transparent;color:var(--ink);border:1px solid var(--cream)}
.btn-ghost:hover{background:var(--cream)}

/* ==========================================================================
   HOME (index.html) — secciones calculadora
   ========================================================================== */
.home-main{padding:0 1.5rem}
.home-wrap{max-width:var(--maxw);margin:0 auto}
.hero-home{padding:4rem 0 3rem;text-align:center}
.hero-home h1{font-family:var(--font-display);font-size:clamp(2rem,5vw,3.4rem);line-height:1.1;margin-bottom:1.2rem;color:var(--ink)}
.hero-home h1 em{color:var(--turquoise);font-style:normal}
.hero-home .lead{font-size:1.1rem;color:var(--ink-soft);max-width:640px;margin:0 auto 2rem;line-height:1.7}
.card{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow-sm);padding:1.8rem;margin-bottom:1.5rem}
.card h2{font-family:var(--font-display);font-size:1.5rem;color:var(--ink);margin-bottom:1rem}
.card p{color:var(--ink-soft);line-height:1.7;margin-bottom:.8rem}
.section{padding:2.5rem 0}
.section h2{font-family:var(--font-display);font-size:1.8rem;text-align:center;margin-bottom:.6rem;color:var(--ink)}
.section .subtitle{text-align:center;color:var(--ink-soft);margin-bottom:2rem;max-width:560px;margin-left:auto;margin-right:auto}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:1.5rem}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem}
.chip{display:inline-block;background:var(--cream);color:var(--ink);font-size:.78rem;font-weight:500;padding:.3rem .8rem;border-radius:20px;margin-right:.4rem;margin-bottom:.4rem}

/* ==========================================================================
   KIT INFORME — tema oscuro consistente con la marca
   ========================================================================== */
.kit-page{background:#fafafa;color:var(--ink)}
.kit-page header{background:#0a0a18}
.kit-hero{background:linear-gradient(135deg,#0a0a18 0%,#1a1a2e 100%);color:#fff;padding:3.5rem 1.5rem 4rem;text-align:center;position:relative;overflow:hidden}
.kit-hero::after{content:'';position:absolute;inset:0;background:radial-gradient(ellipse at 50% 100%,rgba(13,148,136,.25) 0%,transparent 60%);pointer-events:none}
.kit-hero h1{font-family:var(--font-display);font-size:clamp(1.8rem,4vw,2.6rem);margin-bottom:1rem;line-height:1.15}
.kit-hero p{color:rgba(255,255,255,.72);max-width:560px;margin:0 auto;font-size:1.02rem}
.kit-section{max-width:760px;margin:0 auto;padding:2.5rem 1.5rem}
.kit-section h2{font-family:var(--font-display);font-size:1.45rem;color:var(--ink);margin:1.8rem 0 .8rem;padding-top:1.2rem;border-top:1px solid var(--cream)}
.kit-section h2:first-child{border-top:0;padding-top:0;margin-top:0}
.kit-section p{color:var(--ink-soft);line-height:1.8;margin-bottom:1rem}
.kit-section ul,.kit-section ol{color:var(--ink-soft);line-height:1.8;margin:.5rem 0 1rem 1.5rem}
.kit-section li{margin-bottom:.4rem}
.toast{position:fixed;bottom:1.5rem;right:1.5rem;background:var(--ink);color:#fff;padding:.9rem 1.2rem;border-radius:var(--radius-sm);box-shadow:0 10px 30px rgba(0,0,0,.25);display:flex;gap:.7rem;align-items:center;max-width:340px;z-index:1000;font-size:.88rem;transform:translateX(120%);transition:transform .35s cubic-bezier(.4,0,.2,1)}
.toast.show{transform:translateX(0)}
.toast-icon{width:24px;height:24px;border-radius:50%;background:var(--turquoise);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;flex-shrink:0}

/* ==========================================================================
   Breakpoints — mobile first overrides
   ========================================================================== */
@media (max-width:900px){
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .hero{padding:3rem 1.5rem 4.5rem}
}
@media (max-width:768px){
  .grid-2{grid-template-columns:1fr}
  .article-card{padding:2rem 1.5rem}
  .article-wrap{padding:0 1rem}
  .footer-grid{grid-template-columns:1fr 1fr;gap:1.5rem}
  .hero-home{padding:2.5rem 0 2rem}
  .kit-section{padding:2rem 1rem}
}
@media (max-width:640px){
  header{padding:0 1rem;height:56px;flex-wrap:nowrap}
  header nav{gap:.5rem;font-size:.78rem;flex-wrap:wrap;justify-content:flex-end;row-gap:.2rem}
  header nav a{font-size:.78rem;padding:.2rem 0}
  .logo{font-size:.82rem;letter-spacing:.04em}
  .hero{padding:2.5rem 1rem 4rem}
  .hero-cat{font-size:.68rem;padding:4px 10px}
  .breadcrumb{padding:.65rem 1rem;font-size:.74rem}
  .article-wrap{padding:0 .75rem;margin-top:-2rem}
  .article-card{padding:1.5rem 1.2rem}
  .article-card h2{font-size:1.3rem}
  .article-card table{display:block;overflow-x:auto;-webkit-overflow-scrolling:touch;font-size:.78rem}
  .article-card th,.article-card td{padding:.5rem .55rem;white-space:nowrap}
  .author-bio{flex-direction:column;align-items:center;text-align:center}
  .footer-grid{grid-template-columns:1fr;gap:1.4rem;text-align:center}
  .footer-inner{text-align:center}
  .footer-brand .logo{justify-content:center}
  .footer-col li{text-align:center}
  .footer-links{gap:.8rem}
  .legal-links a{margin:0 .25rem}
  .cta-box{padding:1.5rem 1.2rem}
  .toast{left:1rem;right:1rem;bottom:1rem;max-width:none;transform:translateY(150%)}
  .toast.show{transform:translateY(0)}
}
@media (max-width:480px){
  .hero-home h1{font-size:1.8rem}
  .grid-3{grid-template-columns:1fr}
  .section h2{font-size:1.4rem}
  .card{padding:1.3rem 1rem}
  footer{padding:2rem 1rem 1.5rem}
  .kit-hero{padding:2.5rem 1rem 3rem}
}

/* ---------- Print ---------- */
@media print{
  header,footer,.toast,.cta-box{display:none !important}
  body{background:#fff}
  .article-card{box-shadow:none;border:1px solid #ccc;padding:1rem}
}