/* ═══════════════════════════════════════════════════════════════
   IAGRATUITA — Sistema de diseño compartido (categorías + blog)
   Mismo lenguaje visual que la home: Instrument Serif + DM Sans
═══════════════════════════════════════════════════════════════ */

:root{
  --bg:#0A0A12;--bg-soft:#0F0F1A;
  --surface:rgba(255,255,255,0.035);--surface-2:rgba(255,255,255,0.05);
  --border:rgba(255,255,255,0.08);--border-strong:rgba(255,255,255,0.15);
  --violet:#8B5CF6;--violet-deep:#7C3AED;--violet-soft:rgba(139,92,246,0.14);
  --cyan:#22D3EE;--emerald:#34D399;--amber:#FBBF24;
  --text:#F1F5F9;--text-body:#CBD5E1;--text-muted:#94A3B8;--text-dim:#64748B;
  --font-display:'Instrument Serif',Georgia,serif;
  --font-sans:'DM Sans',system-ui,sans-serif;
  --font-mono:'JetBrains Mono',ui-monospace,monospace;
  --r-sm:10px;--r:14px;--r-lg:20px;--r-pill:100px;
  --shadow-hover:0 22px 48px -16px rgba(0,0,0,0.55);
  --nav-h:66px;--ease:cubic-bezier(0.4,0,0.2,1);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{font-size:16px;overflow-x:clip;scroll-behavior:smooth;}
body{background:var(--bg);color:var(--text-body);font-family:var(--font-sans);font-size:1.0625rem;line-height:1.75;overflow-x:clip;-webkit-font-smoothing:antialiased;}
body::before{content:'';position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:radial-gradient(720px circle at 12% -5%,rgba(124,58,237,0.16),transparent 55%),
             radial-gradient(620px circle at 95% 8%,rgba(34,211,238,0.08),transparent 55%);}
a{color:var(--violet);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:#A78BFA;}
button{font-family:inherit;}
img{max-width:100%;}
h1,h2,h3,h4{color:var(--text);line-height:1.15;letter-spacing:-0.02em;}
strong{color:var(--text);font-weight:600;}

/* ── NAV ── */
.nav{position:fixed;top:0;left:0;right:0;z-index:100;height:var(--nav-h);display:flex;align-items:center;
  padding:0 clamp(1rem,4vw,3rem);background:rgba(10,10,18,0.72);
  backdrop-filter:blur(18px) saturate(140%);-webkit-backdrop-filter:blur(18px) saturate(140%);
  border-bottom:1px solid var(--border);}
.nav-logo{font-size:1.2rem;font-weight:800;letter-spacing:-0.04em;color:var(--text);flex-shrink:0;}
.nav-logo .cyan{color:var(--cyan);}
.nav-links{display:flex;gap:1.5rem;margin-left:auto;align-items:center;}
.nav-links a{position:relative;font-size:0.875rem;font-weight:500;color:var(--text-muted);}
.nav-links a:not(.nav-cta)::after{content:'';position:absolute;left:0;right:0;bottom:-6px;height:2px;background:var(--violet);border-radius:2px;transform:scaleX(0);transform-origin:left;transition:transform .25s var(--ease);}
.nav-links a:not(.nav-cta):hover{color:var(--text);}
.nav-links a:not(.nav-cta):hover::after{transform:scaleX(1);}
.nav-cta{background:var(--violet-deep);color:#fff;padding:0.45rem 1.05rem;border-radius:var(--r-pill);font-weight:600;font-size:0.82rem;transition:background .2s var(--ease);}
.nav-cta:hover{background:var(--violet);color:#fff;}
.nav-burger{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:0.4rem;margin-left:auto;background:none;border:none;line-height:0;}
.nav-burger span{display:block;width:22px;height:2px;background:var(--text);border-radius:2px;}
@media (max-width:820px){
  .nav-links{display:none;}
  .nav-burger{display:flex;}
  .nav.open .nav-links{display:flex;flex-direction:column;align-items:flex-start;position:absolute;top:var(--nav-h);left:0;right:0;background:rgba(10,10,18,0.98);backdrop-filter:blur(20px);padding:1.5rem 2rem;gap:1.2rem;border-bottom:1px solid var(--border);}
}

/* ── LAYOUT ── */
.wrap{max-width:1200px;margin:0 auto;padding:clamp(3rem,6vw,5rem) clamp(1rem,4vw,2.5rem);}
.wrap-narrow{max-width:760px;margin:0 auto;padding:clamp(2.5rem,5vw,4rem) clamp(1rem,4vw,2rem);}
.page-head{padding-top:calc(var(--nav-h) + clamp(2.5rem,6vw,4.5rem));}
.eyebrow{font-family:var(--font-mono);font-size:0.7rem;font-weight:500;letter-spacing:0.18em;text-transform:uppercase;color:var(--violet);margin-bottom:0.7rem;}
.page-title{font-family:var(--font-display);font-style:italic;font-weight:400;font-size:clamp(2.2rem,5.5vw,3.8rem);line-height:1.05;margin-bottom:1rem;}
.page-title .hl{background:linear-gradient(120deg,var(--violet),var(--cyan));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:transparent;}
.page-intro{font-size:1.05rem;color:var(--text-muted);max-width:64ch;line-height:1.75;margin-bottom:0.8rem;}

/* ── BREADCRUMB ── */
.breadcrumb{font-family:var(--font-mono);font-size:0.72rem;color:var(--text-dim);margin-bottom:1.4rem;display:flex;gap:0.5rem;flex-wrap:wrap;align-items:center;}
.breadcrumb a{color:var(--text-dim);}
.breadcrumb a:hover{color:var(--violet);}
.breadcrumb .sep{opacity:0.5;}

/* ── CARDS (idénticas a la home) ── */
.cards-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(265px,1fr));gap:1.25rem;margin-top:2rem;}
@media (max-width:600px){.cards-grid{grid-template-columns:1fr;}}
.ai-card{position:relative;display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);padding:1.5rem;overflow:hidden;transition:transform .3s var(--ease),border-color .3s var(--ease),box-shadow .3s var(--ease);}
.ai-card:hover{transform:translateY(-5px);border-color:var(--card-color,rgba(139,92,246,0.6));box-shadow:var(--shadow-hover);}
.card-head{display:flex;flex-direction:column;align-items:flex-start;}
.card-icon{width:48px;height:48px;border-radius:12px;margin-bottom:0.9rem;flex-shrink:0;display:flex;align-items:center;justify-content:center;}
.card-icon img,.card-icon svg{width:44px;height:44px;border-radius:11px;display:block;object-fit:contain;}
.card-name{font-size:1.1rem;font-weight:700;letter-spacing:-0.02em;color:var(--text);margin-bottom:0.25rem;}
.card-cat{font-family:var(--font-mono) !important;font-size:0.64rem !important;letter-spacing:0.12em;text-transform:uppercase;color:var(--text-dim) !important;margin-bottom:0.9rem;}
.card-desc{font-size:0.9rem;color:var(--text-muted);line-height:1.6;flex:1;margin-bottom:1.1rem;}
.card-limit{display:inline-flex;align-items:center;gap:0.4rem;align-self:flex-start;background:rgba(52,211,153,0.1);border:1px solid rgba(52,211,153,0.28);color:var(--emerald);font-size:0.72rem;font-weight:500;padding:0.28rem 0.7rem;border-radius:var(--r-pill);margin-bottom:1.1rem;}
.card-limit::before{content:'✓';font-weight:700;}
.card-footer{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:1rem;border-top:1px solid var(--border);}
.card-btn{font-size:0.85rem;font-weight:600;color:var(--violet);}
.card-btn:hover{color:#C4B5FD;}
.card-stars{font-size:0.74rem;color:var(--text-dim);}
.card-stars .s{color:var(--amber);}

/* ── PROSE (blog y páginas de texto) ── */
.prose h2{font-family:var(--font-display);font-style:italic;font-weight:400;font-size:clamp(1.6rem,3.2vw,2.2rem);margin:2.6rem 0 1rem;}
.prose h3{font-size:1.2rem;font-weight:700;margin:2rem 0 0.8rem;}
.prose p{margin-bottom:1.3rem;color:var(--text-body);}
.prose ul,.prose ol{margin:0 0 1.4rem 1.4rem;color:var(--text-body);}
.prose li{margin-bottom:0.5rem;}
.prose a{text-decoration:underline;text-decoration-color:rgba(139,92,246,0.4);text-underline-offset:3px;}
.prose blockquote{border-left:3px solid var(--violet);background:var(--violet-soft);border-radius:0 var(--r-sm) var(--r-sm) 0;padding:1rem 1.4rem;margin:1.6rem 0;color:var(--text-body);}
.prose table{width:100%;border-collapse:collapse;margin:1.8rem 0;font-size:0.9rem;background:var(--surface);border-radius:var(--r-sm);overflow:hidden;}
.prose th{background:rgba(139,92,246,0.1);color:var(--text);font-weight:600;padding:0.8rem 1rem;text-align:left;border-bottom:2px solid var(--border);}
.prose td{padding:0.75rem 1rem;border-bottom:1px solid var(--border);vertical-align:top;}
.prose tr:last-child td{border-bottom:none;}
.t-yes{color:var(--emerald);}
.t-no{color:#F87171;}
.t-lim{color:var(--amber);}
.callout{border-left:3px solid var(--violet);background:var(--violet-soft);border-radius:0 var(--r-sm) var(--r-sm) 0;padding:1.1rem 1.4rem;margin:1.6rem 0;font-size:0.95rem;}
.callout.green{border-left-color:var(--emerald);background:rgba(52,211,153,0.08);}
.callout.amber{border-left-color:var(--amber);background:rgba(251,191,36,0.08);}

/* ── LISTADO DE POSTS (blog index) ── */
.post-list{display:flex;flex-direction:column;gap:1.25rem;margin-top:2rem;}
.post-item{display:block;background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);padding:1.6rem;transition:transform .3s var(--ease),border-color .3s var(--ease);}
.post-item:hover{transform:translateY(-3px);border-color:rgba(139,92,246,0.5);}
.post-item-title{font-family:var(--font-display);font-style:italic;font-size:1.45rem;color:var(--text);margin-bottom:0.4rem;line-height:1.2;}
.post-item-desc{font-size:0.92rem;color:var(--text-muted);line-height:1.6;margin-bottom:0.7rem;}
.post-item-meta{font-family:var(--font-mono);font-size:0.7rem;color:var(--text-dim);letter-spacing:0.05em;}

/* ── FICHA RÁPIDA / RECURSOS ── */
.box{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);padding:1.5rem;margin:1.8rem 0;}
.box h3{margin-top:0 !important;}
.box ul{margin-bottom:0 !important;}

/* ── FOOTER ── */
.footer{border-top:1px solid var(--border);padding:3.5rem clamp(1rem,4vw,2.5rem) 2rem;background:var(--bg-soft);margin-top:4rem;}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:2rem;max-width:1200px;margin:0 auto 2.5rem;}
@media (max-width:768px){.footer-grid{grid-template-columns:1fr 1fr;}}
@media (max-width:480px){.footer-grid{grid-template-columns:1fr;}}
.footer-logo{font-size:1.3rem;font-weight:800;letter-spacing:-0.04em;color:var(--text);margin-bottom:0.6rem;}
.footer-logo .cyan{color:var(--cyan);}
.footer-desc{font-size:0.85rem;color:var(--text-muted);line-height:1.65;max-width:28ch;}
.footer-col h4{font-family:var(--font-mono);font-size:0.7rem;font-weight:500;letter-spacing:0.08em;text-transform:uppercase;color:var(--violet);margin-bottom:0.9rem;}
.footer-col a{display:block;font-size:0.86rem;color:var(--text-muted);margin-bottom:0.45rem;}
.footer-col a:hover{color:var(--text);}
.footer-bottom{max-width:1200px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:0.75rem;padding-top:1.6rem;border-top:1px solid var(--border);font-family:var(--font-mono);font-size:0.74rem;color:var(--text-dim);}
.footer-bottom a{color:var(--text-dim);}
.footer-bottom a:hover{color:var(--text-muted);}

/* ── AD SLOT ── */
.ad-slot{margin:2.5rem auto;max-width:1200px;padding:0 clamp(1rem,4vw,2.5rem);min-height:90px;}

/* ── ACCESIBILIDAD ── */
:focus-visible{outline:2px solid var(--violet);outline-offset:3px;border-radius:4px;}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
}