/* base.css — compartido por todas las páginas públicas (tokens, reset, nav, pie, fórmula de contacto)
   Generado a partir de style.css + CSS inline de las páginas (rebrand v2). */

*{margin:0;padding:0;box-sizing:border-box;}

:root{
    --bg: #0a0d12;
    --panel: #10141b;
    --panel-2: #141a23;
    --line: #1d2530;
    --line-soft: #161c26;
    --blue: #3d7fff;
    --blue-bright: #6b9fff;
    --blue-soft: rgba(61,127,255,.14);
    --blue-dim: #16233f;
    --text: #edf0f4;
    --text-dim: #a4acb9;
    --text-faint: #79828f;
    --mono: 'JetBrains Mono', monospace;
    --display: 'Space Grotesk', sans-serif;
    --body: 'Inter', sans-serif;
  }

*{margin:0;padding:0;box-sizing:border-box;}

html{scroll-behavior:smooth;}

/* Skip-link: oculto salvo con foco de teclado — deja saltar el <nav> sin tabular por todo. */
.skip-link{
    position:absolute; top:-40px; left:0; z-index:2000;
    background:var(--panel); color:var(--text);
    border:1px solid var(--line); border-radius:0 0 8px 0;
    padding:10px 18px; font-family:var(--body); font-size:14px; text-decoration:none;
    transition:top .15s ease;
  }

.skip-link:focus{ top:0; outline:2px solid var(--blue); outline-offset:-2px; }

body{
    background:var(--bg); color:var(--text); font-family:var(--body);
    -webkit-font-smoothing:antialiased; overflow-x:hidden;
  }

.grid-bg{
    position:fixed; inset:0; z-index:0; pointer-events:none;
    background-image:
      linear-gradient(var(--line-soft) 1px, transparent 1px),
      linear-gradient(90deg, var(--line-soft) 1px, transparent 1px);
    background-size: 64px 64px;
    mask-image: radial-gradient(ellipse 80% 60% at 50% 20%, black 40%, transparent 90%);
    opacity:.6;
  }

a{color:inherit;text-decoration:none;}

.wrap{max-width:1120px;margin:0 auto;padding:0 32px;position:relative;z-index:1;}

@keyframes blink-cursor{0%,100%{opacity:1;} 50%{opacity:0;}}

.eyebrow{
    font-family:var(--mono); font-size:12px; color:var(--blue-bright);
    letter-spacing:.5px; margin-bottom:16px; display:flex; align-items:center; gap:10px;
  }

.eyebrow::before{content:'';width:20px;height:1px;background:var(--blue-bright);}

h2.section-title{
    font-family:var(--display); font-weight:600; font-size:clamp(26px,3.6vw,40px);
    letter-spacing:-.01em; max-width:700px; line-height:1.18;
  }

@media (max-width:600px){
  .wrap{padding:0 20px;}
}

/* NAV */
nav{
    position:sticky; top:0; z-index:50;
    backdrop-filter:blur(10px);
    background:rgba(10,13,18,.7);
    border-bottom:1px solid var(--line);
  }

nav .wrap{display:flex;align-items:center;justify-content:space-between;height:68px;max-width:1120px;}

.nav-links{display:flex;gap:28px;font-size:14px;color:var(--text-dim); align-items:center;}

.nav-links a:hover{color:var(--text);}

/* Aviso del sitio (admin → Personalizar): franja arriba de todas las páginas, con vencimiento; la pone assets/js/sitio.js */
.aviso-sitio{
    display:flex; align-items:center; justify-content:center; gap:14px; flex-wrap:wrap; padding:9px 20px;
    background-color:var(--blue-soft); border-bottom:1px solid var(--blue-dim); color:var(--text);
    font-size:13.5px; line-height:1.4; text-align:center; position:relative; z-index:60;
  }
.aviso-sitio a{color:var(--blue-bright); font-weight:600; white-space:nowrap; text-decoration:underline; text-underline-offset:3px;}
.aviso-sitio a:hover{color:#fff;}

.nav-cta{
    font-family:var(--mono); font-size:12px; letter-spacing:.3px;
    border:1px solid var(--line); padding:8px 16px; border-radius:3px;
    color:var(--text); transition:border-color .2s, background .2s;
    display:inline-flex; align-items:center; gap:8px;
  }

.nav-cta svg{ color:var(--blue-bright); flex:none; }

.nav-cta:hover{border-color:var(--blue); background:var(--blue-soft);}

/* FOOTER / CONTACT */
footer{border-top:1px solid var(--line); padding:160px 0 60px; margin-top:20px;}

.contact-title{
    font-family:var(--display); font-weight:700; font-size:clamp(32px,5.4vw,50px);
    line-height:1.15; max-width:680px; margin-top:28px;
    display:flex; align-items:center; gap:16px; flex-wrap:wrap;
  }

.contact-title .accent{color:var(--blue-bright);}

.cafe-icon{width:0.85em; height:0.85em; color:var(--blue-bright); flex:none;}

.formula-bar-big{
    display:flex; align-items:stretch; margin-top:56px; border:1px solid var(--blue-dim);
    border-radius:6px; background:var(--panel); overflow-x:auto; max-width:100%; width:fit-content;
  }

.formula-fx-big{
    font-family:var(--mono); font-weight:700; font-style:italic; font-size:15px; color:var(--blue-bright);
    background:var(--blue-soft); padding:20px; border-right:1px solid var(--blue-dim); flex:none;
    display:flex; align-items:center;
  }

.formula-reveal{overflow:hidden; white-space:nowrap; width:0; transition:width 1.6s steps(39,end); flex:none;}

.formula-bar-big.in-view .formula-reveal{width:39ch;}

.formula-inner{
    display:inline-flex; align-items:center; font-family:var(--mono); font-size:15px; color:var(--text);
    padding:20px 22px; white-space:nowrap;
  }

.formula-inner::after{
    content:''; display:inline-block; width:2px; height:15px; background:var(--blue-bright);
    margin-left:4px; opacity:0;
  }

.formula-bar-big.in-view .formula-inner::after{opacity:1; animation:blink-cursor 1s step-end infinite; animation-delay:2.1s;}

.formula-arg{color:var(--blue-bright); text-decoration:underline; text-underline-offset:3px; text-decoration-color:var(--blue-dim); transition:color .2s, text-decoration-color .2s;}

.formula-arg:hover{color:#fff; text-decoration-color:#fff;}

@media (max-width:600px){
  .formula-reveal{width:auto !important; white-space:normal; transition:none;}
  .formula-inner{white-space:normal; padding:16px 18px;}
  .formula-inner::after{display:none;}
}

.contact-meta{
    display:flex; gap:14px; margin-top:56px; padding-top:26px; border-top:1px solid var(--line-soft);
    flex-wrap:wrap; align-items:center; font-size:13px; color:var(--text-faint); font-family:var(--mono);
  }

.contact-meta a{color:var(--text-dim);}

.contact-meta a:hover{color:var(--blue-bright);}

.contact-meta > *:not(:last-child)::after{content:'·'; margin-left:14px; color:var(--line);}
footer .contact-meta{justify-content:center;}

@media (max-width:600px){
  .nav-links{display:none;}
}

::selection{background:var(--blue); color:#fff;}
section{position:relative; z-index:1;}
section[id],header[id],footer[id]{scroll-margin-top:150px;}
/* ══ Marca v2 — navegación ══ */
.nav-logo{display:flex; align-items:center; flex:none;}
.nav-logo img{height:30px; width:auto; display:block;}
.nav-links a[aria-current="page"]{color:var(--text);}
.nav-hidden-note{
  font-family:var(--mono); font-size:10.5px; color:var(--text-faint);
  display:flex; align-items:center; gap:6px;
}
.nav-hidden-note svg{width:12px; height:12px; flex:none;}
.nav-toggle{
  display:none; width:38px; height:34px; align-items:center; justify-content:center; flex:none;
  background:none; border:1px solid var(--line); border-radius:3px; color:var(--text); cursor:pointer;
}
.nav-toggle svg{width:18px; height:18px;}
.nav-toggle:hover{border-color:var(--blue); background:var(--blue-soft);}
@media (max-width:600px){
  nav .wrap{gap:10px;}
  .nav-logo{margin-right:auto;}
  .nav-toggle{display:inline-flex;}
  nav.open .nav-links{
    display:flex; position:absolute; top:100%; left:0; right:0; flex-direction:column; align-items:stretch; gap:0;
    background:var(--bg); border-bottom:1px solid var(--line); padding:6px 20px 12px;
    max-height:calc(100vh - 68px); max-height:calc(100dvh - 68px); overflow-y:auto;
  }
  nav.open .nav-links a,nav.open .nav-hidden-note{padding:13px 0; border-bottom:1px solid var(--line-soft); font-size:15px;}
  nav.open .nav-links a:last-child{border-bottom:none;}
}
@media (max-width:420px){ .nav-logo img{height:24px;} .nav-cta{padding:7px 12px;} }

/* ══ Marca v2 — pie ══ */
footer.footer-min{padding:30px 0 40px; margin-top:10px; border-top-color:var(--line-soft);}
footer.footer-min .contact-meta{margin-top:0; padding-top:0; border-top:none;}
.footer-brand{
  display:flex; flex-direction:column; align-items:center; text-align:center; gap:16px;
  margin-top:26px; padding-top:26px; border-top:1px solid var(--line-soft);
}
footer.footer-min .footer-brand{margin-top:20px;}
.footer-id{display:flex; flex-direction:column; align-items:center; gap:10px;}
.footer-id img{height:24px; width:auto; display:block;}
.footer-id span,.footer-created{font-family:var(--mono); font-size:11.5px; color:var(--text-faint); letter-spacing:.2px;}
.footer-created{display:flex; align-items:center; gap:9px;}
.footer-created img{height:30px; width:auto; display:block; filter:brightness(1.9);}
@media (prefers-reduced-motion:reduce){
  .formula-inner::after,.formula-bar-big.in-view .formula-inner::after{animation:none !important;}
}

/* ══ Menú desplegable de Cursos ══ */
.nav-dd{position:relative;}
.nav-dd::after{content:''; position:absolute; left:-12px; right:-12px; top:100%; height:18px;}
.nav-dd-trigger{display:inline-flex; align-items:center; gap:6px;}
.nav-dd-chev{width:11px; height:11px; transition:transform .2s; flex:none;}
.nav-dd:hover .nav-dd-chev,.nav-dd:focus-within .nav-dd-chev{transform:rotate(180deg);}
.nav-dd-menu{
  position:absolute; top:calc(100% + 16px); left:-18px; min-width:236px; z-index:60;
  background:var(--panel); border:1px solid var(--line); border-radius:10px; padding:8px;
  box-shadow:0 18px 44px rgba(0,0,0,.5);
  opacity:0; visibility:hidden; transform:translateY(-6px);
  transition:opacity .18s ease, transform .18s ease, visibility .18s;
}
.nav-dd:hover .nav-dd-menu,.nav-dd:focus-within .nav-dd-menu{opacity:1; visibility:visible; transform:none;}
.nav-dd-menu a{display:flex; align-items:center; gap:12px; padding:10px 12px; border-radius:7px; font-size:13.5px; color:var(--text-dim); transition:background .15s, color .15s;}
.nav-dd-menu a:hover,.nav-dd-menu a:focus-visible{background:var(--panel-2); color:var(--text);}
.nav-dd-menu a svg{width:18px; height:18px; flex:none; color:var(--c, var(--blue-bright));}
@media (max-width:600px){
  nav.open .nav-dd::after{display:none;}
  nav.open .nav-dd-chev{display:none;}
  nav.open .nav-dd-menu{position:static; opacity:1; visibility:visible; transform:none; min-width:0; background:none; border:none; box-shadow:none; padding:0 0 4px 14px;}
  nav.open .nav-dd-menu a{padding:10px 0; border-bottom:1px solid var(--line-soft); font-size:14px;}
  nav.open .nav-dd-menu a:last-child{border-bottom:none;}
}