/* EPISTÉRIA · portal consolidado · azul petróleo, marfil, cobre */
:root{
  --ink:#16394F; --ink-deep:#0A2B3A; --accent:#9A4B29; --accent-deep:#853A1E; --accent-soft:#F5E9DC;
  --copper:#B5602F; --copper-light:#F6AD72; --terra:#A35139; --ivory:#EDE7DF; --paper:#F8F5F0; --white:#fffdf9;
  --muted:#485C67; --line:#D2C7BA; --ok:#176641; --serif:'Playfair Display',Georgia,serif; --sans:'Montserrat',Arial,Helvetica,sans-serif; --max:1200px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:96px}
body{margin:0;background:var(--paper);color:var(--ink);font:400 17px/1.7 var(--sans);-webkit-font-smoothing:antialiased}
h1,h2,h3,p{margin-top:0}
a{color:inherit}
img,svg{max-width:100%}
:focus-visible{outline:3px solid var(--accent);outline-offset:3px}
::selection{background:#F5C49A}
[hidden]{display:none!important}
.wrap{width:min(calc(100% - 48px),var(--max));margin-inline:auto}
.skip{position:absolute;left:12px;top:-100px;background:var(--ivory);padding:10px 16px;z-index:999}.skip:focus{top:12px}
.eyebrow{font:700 12.5px/1.4 var(--sans);letter-spacing:.16em;text-transform:uppercase;color:var(--accent);margin-bottom:12px}
.eyebrow a{text-decoration:none}.eyebrow.light{color:var(--copper-light)}
.intro{font-size:18.5px;line-height:1.75;color:#3E5764;max-width:760px}
.meta{font-size:14px;color:var(--muted)}
.link{color:var(--accent);font-weight:700;font-size:15px;text-decoration:none}.link:hover{text-decoration:underline}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:50px;padding:13px 22px;border:1px solid var(--ink);background:var(--ink);color:#fff;font:700 14.5px var(--sans);text-decoration:none;border-radius:8px;cursor:pointer;transition:background .2s,transform .2s}
.btn:hover{background:var(--ink-deep);transform:translateY(-2px)}
.btn-outline{background:transparent;color:var(--ink)}.btn-outline:hover{background:var(--ink);color:#fff}
.btn-accent{background:var(--accent);border-color:var(--accent)}.btn-accent:hover{background:var(--accent-deep)}
.btn:disabled{opacity:.6;cursor:wait}
/* cabecera */
.topline{background:var(--ink-deep);color:#F2EAE4}.topline .wrap{display:flex;justify-content:space-between;gap:12px;padding:9px 0;font-size:11.5px;font-weight:600;letter-spacing:.12em;text-transform:uppercase}
.header{position:sticky;top:0;z-index:50;background:rgba(250,248,244,.97);border-bottom:1px solid var(--line);backdrop-filter:blur(12px)}
.nav{display:flex;justify-content:space-between;align-items:center;min-height:82px;gap:24px;position:relative}
.brand{display:flex;flex-direction:column;line-height:1;text-decoration:none}
.brand-name{font:500 clamp(26px,2.6vw,33px)/1 var(--serif);letter-spacing:-.04em}.brand-name .acute{color:var(--accent)}
.brand-sub{font:700 8.5px/1.3 var(--sans);letter-spacing:.2em;margin-top:8px}
.nav-list{display:flex;gap:clamp(14px,2vw,30px);align-items:center}
.nav-list a:not(.btn){font-weight:600;font-size:14.5px;text-decoration:none}
.nav-list a:not(.btn):hover,.nav-list a[aria-current=page]{color:var(--accent)}
.menu-button{display:none;border:1px solid var(--line);background:none;width:46px;height:46px;border-radius:8px;color:var(--ink);cursor:pointer;align-items:center;justify-content:center}
/* portada */
.hero{background:var(--ivory);padding:clamp(60px,8vw,110px) 0 clamp(56px,7vw,90px);overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(32px,5vw,80px);align-items:center}
.hero h1{font:400 clamp(46px,6vw,86px)/1.06 var(--serif);letter-spacing:-.045em;margin:6px 0 24px}.hero h1 em{color:var(--accent)}
.actions{display:flex;flex-wrap:wrap;gap:12px;margin:28px 0 36px}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px 26px;padding-top:18px;border-top:1px solid #C7BBAF;font-size:12.5px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}
.hero-art{position:relative;margin:0;background:#C9C1B1;border:8px solid #E1D8CC;border-radius:5px;overflow:hidden;box-shadow:16px 17px 0 rgba(22,57,79,.09);aspect-ratio:1.07}
.hero-art img{display:block;width:100%;height:100%;object-fit:cover;object-position:67% center}
.hero-art figcaption{position:absolute;bottom:0;left:0;right:0;background:linear-gradient(transparent,rgba(10,43,58,.82));color:#FFF5E8;padding:25px 15px 13px;font-size:11px;font-weight:600;letter-spacing:.03em}

/* secciones */
.section{padding:clamp(60px,7vw,100px) 0}.section.tight{padding-top:36px}.section.alt{background:var(--ivory)}
.section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:20px;flex-wrap:wrap;margin-bottom:32px}
.section-head h2,.page-head h1{font:400 clamp(32px,4.2vw,54px)/1.15 var(--serif);letter-spacing:-.035em;margin:0}
.section-head h2 em,.page-head h1 em{color:var(--terra)}
.section-head.compact h2{font-size:clamp(28px,3vw,38px)}
.page-head{background:var(--ivory);padding:clamp(48px,6vw,80px) 0 clamp(36px,4vw,56px)}.page-head h1{margin-bottom:18px}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:18px}
.card{background:var(--white);border:1px solid var(--line);border-radius:14px;padding:24px 24px 20px;display:flex;flex-direction:column;transition:transform .2s,box-shadow .2s,border-color .2s}
.card:hover{transform:translateY(-3px);border-color:var(--accent);box-shadow:0 16px 32px rgba(27,30,61,.08)}
.card h3{font:400 23px/1.3 var(--serif);letter-spacing:-.02em;margin:16px 0 8px}.card h3 a{text-decoration:none}.card h3 a:hover{color:var(--accent)}
.card p{font-size:15.5px;color:var(--muted);margin-bottom:16px}
.card-top{display:flex;justify-content:space-between;align-items:center;gap:10px}
.card-foot{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;margin-top:auto;padding-top:14px;border-top:1px solid var(--line)}
.tag{display:inline-block;font-size:11.5px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);background:var(--ivory);border-radius:999px;padding:4px 10px;margin:0 6px 6px 0}
.estado{font-size:12px;font-weight:700;border-radius:999px;padding:4px 10px}.estado.abierta{background:#DDF3E7;color:var(--ok)}.estado.proxima{background:var(--accent-soft);color:var(--accent)}
.cierre{font-size:14px;font-weight:600}.cierre.urgente{color:var(--terra)}
.price{font-size:17px;font-weight:700;color:var(--accent)}
.vacio{background:var(--white);border:1px dashed #BDB6AA;border-radius:14px;padding:28px;color:var(--muted)}.vacio p:last-child{margin-bottom:0}
.aviso-servicio{margin-top:28px;background:var(--accent-soft);border-left:4px solid var(--accent);border-radius:0 12px 12px 0;padding:18px 22px;font-size:16px;color:#453C34}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:clamp(32px,5vw,72px)}
.lista-eventos,.lista-noticias{list-style:none;padding:0;margin:0}
.lista-eventos li,.lista-noticias li{display:grid;gap:4px;padding:16px 0;border-top:1px solid #CFC8BC}
.lista-eventos a,.lista-noticias a{font:400 21px/1.35 var(--serif);text-decoration:none}.lista-eventos a:hover,.lista-noticias a:hover{color:var(--accent)}
.fecha-bloque{font-size:13px;font-weight:700;color:var(--terra);text-transform:uppercase;letter-spacing:.06em}
.pilares{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.pilares div{border-top:3px solid var(--accent);padding-top:18px}.pilares h3{font:400 23px var(--serif);margin-bottom:8px}.pilares p{font-size:15.5px;color:var(--muted)}
/* filtros */
.filtros{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:14px;background:var(--white);border:1px solid var(--line);border-radius:14px;padding:18px;margin-bottom:14px}
label{display:block;font-size:12.5px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;margin-bottom:6px}
input,select,textarea{width:100%;font:400 16px var(--sans);color:var(--ink);background:#fff;border:1px solid #C6C3BF;border-radius:8px;padding:12px}
input:focus,select:focus,textarea:focus{outline:2px solid #9A4B2944;border-color:var(--accent)}
textarea{min-height:140px;resize:vertical}
.contador{font-size:14px;color:var(--muted);margin:0 0 14px}
/* fichas */
.ficha{padding:clamp(40px,6vw,80px) 0}
.ficha-grid{display:grid;grid-template-columns:1.5fr 1fr;gap:clamp(28px,5vw,64px);align-items:start}
.ficha h1{font:400 clamp(32px,4vw,50px)/1.15 var(--serif);letter-spacing:-.03em}
.ficha h2{font:400 26px var(--serif);margin-top:28px}
.pre{white-space:pre-line}
.nota{font-size:14.5px;color:var(--muted);border-top:1px solid var(--line);padding-top:14px;margin:28px 0}
.ficha-datos{background:var(--white);border:1px solid var(--line);border-radius:14px;padding:22px;position:sticky;top:110px}
.ficha-datos dl{margin:0 0 18px}.ficha-datos dt{font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin-top:12px}.ficha-datos dd{margin:2px 0 0;font-weight:600}
.cta-box{background:var(--accent-soft);border-radius:12px;padding:18px}.cta-box p{font-size:15px;color:#453C34;margin:8px 0 14px}
.lectura{max-width:760px}.lectura h2{font:400 28px var(--serif);margin-top:32px}
/* eventos */
.eventos{display:grid;gap:0}
.evento{display:grid;grid-template-columns:200px 1fr;gap:24px;padding:24px 0;border-top:1px solid var(--line)}
.evento h2{font:400 24px/1.3 var(--serif);margin-bottom:6px}.evento h2 a{text-decoration:none}.evento h2 a:hover{color:var(--accent)}
.evento-fecha{display:grid;align-content:start;gap:2px;font-weight:700;color:var(--terra)}
/* servicios */
.grupo{margin-bottom:44px}.grupo-titulo{font:400 30px var(--serif);border-top:1px solid var(--ink);padding-top:14px;margin-bottom:18px}
.compromisos{margin-top:44px}.compromisos h2{font:400 30px var(--serif)}.compromisos li{margin-bottom:8px}
/* formularios */
.form-wrap{display:grid;grid-template-columns:1.4fr .6fr;gap:40px;align-items:start}
.form-card{display:grid;gap:18px;background:var(--white);border:1px solid var(--line);border-radius:16px;padding:clamp(20px,4vw,40px)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.check{display:flex;gap:10px;align-items:flex-start;text-transform:none;letter-spacing:0;font-weight:500;font-size:14.5px;line-height:1.6}
.check input{width:18px;height:18px;margin-top:3px;flex-shrink:0}.check a{color:var(--accent)}
.form-status{font-size:15px;font-weight:600;color:var(--accent);min-height:1.4em;margin:0}
.hp{position:absolute;left:-10000px;width:1px;height:1px;overflow:hidden}
.contacto-aside h2{font:400 26px var(--serif)}
/* boletín */
.boletin{background:var(--ink);color:#F3EFE7;padding:clamp(56px,7vw,90px) 0}
.boletin-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(28px,5vw,64px);align-items:center}
.boletin h2{font:400 clamp(28px,3.4vw,42px)/1.2 var(--serif);letter-spacing:-.03em}
.boletin p{color:#E6DCD3}
.boletin-form{position:relative;background:#214659;border-radius:16px;padding:24px;display:grid;gap:12px}
.boletin-form label{color:#F3EFE7}.boletin-form .check a{color:var(--copper-light)}
.boletin-row{display:flex;gap:10px}.boletin-row input{flex:1}
.boletin .form-status{color:var(--copper-light)}
/* pie */
.footer{background:#0B2736;color:#E9E5E0;padding:52px 0 22px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;padding-bottom:36px;border-bottom:1px solid #456070}
.footer .brand-name{font-size:34px}.slogan{font:italic 400 19px var(--serif);color:#CED8D8;margin-top:20px}
.foot-label{font-size:12px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--copper-light);margin-bottom:12px}
.footer a:not(.brand){display:block;text-decoration:none;font-size:14.5px;margin-bottom:9px}.footer a:hover{color:var(--copper-light)}
.footer-bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;font-size:12.5px;color:#C6D0D1;padding-top:20px}
/* adaptable */
@media(max-width:1000px){.pilares{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1fr 1fr}.filtros{grid-template-columns:1fr 1fr}}
@media(max-width:820px){
  .menu-button{display:inline-flex}
  .nav-list{display:none;position:absolute;top:100%;left:-24px;right:-24px;flex-direction:column;align-items:stretch;gap:4px;background:var(--paper);border-bottom:1px solid var(--line);padding:14px 24px 22px;box-shadow:0 16px 24px rgba(27,30,61,.1)}
  .nav-list.open{display:flex}.nav-list a:not(.btn){font-size:17px;padding:8px 4px}
  .hero-grid,.two-col,.ficha-grid,.form-wrap,.boletin-grid{grid-template-columns:1fr}
  .hero-art{max-width:600px;aspect-ratio:1.25}
  .ficha-datos{position:static}
  .evento{grid-template-columns:1fr;gap:8px}
  .topline .wrap span:last-child{display:none}
}
@media(max-width:560px){
  body{font-size:16.5px}.wrap{width:min(calc(100% - 36px),var(--max))}
  .pilares,.filtros,.form-row,.footer-grid{grid-template-columns:1fr}
  .boletin-row{flex-direction:column}
  .cards{grid-template-columns:1fr}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}

/* Ajustes de legibilidad y accesibilidad */
:focus-visible{outline-color:#B5602F}
.boletin-form .check a{color:#FFD9B4}
@media(max-width:560px){.hero-art{aspect-ratio:1.15}.hero-art figcaption{font-size:10px}}


/* EPISTÉRIA Proyectos · editorial azul petróleo / cobre */
.proyectos-home{background:var(--ink);color:#F7F0E5;position:relative;overflow:hidden}
.proyectos-home:before{content:"";position:absolute;top:-220px;right:-230px;width:520px;height:520px;border:1px solid rgba(247,240,229,.18);border-radius:50%;pointer-events:none}
.proyectos-home-intro{display:grid;grid-template-columns:1.45fr 1fr;gap:clamp(22px,5vw,70px);align-items:end;margin-bottom:34px}
.proyectos-home h2{font:400 clamp(34px,4vw,54px)/1.15 var(--serif);letter-spacing:-.035em;margin:0}
.proyectos-home h2 em{color:var(--copper-light)}
.proyectos-home-intro p:not(.eyebrow){font-size:16px;color:#E4EAE9;line-height:1.8}
.proyectos-home .proyectos-more{color:#FFD1A9}
.proyectos-home-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}
.proyectos-home-card{min-width:0;display:flex;flex-direction:column;padding:23px 20px;background:rgba(255,253,249,.065);border:1px solid rgba(255,253,249,.23);border-radius:10px}
.proyecto-num{display:block;font:700 12px var(--sans);letter-spacing:.13em;color:var(--copper)}
.proyectos-home-card .proyecto-num{color:var(--copper-light)}
.proyectos-home-card h3{font:400 21px/1.28 var(--serif);margin:22px 0 12px}
.proyectos-home-card p{font-size:14px;line-height:1.65;color:#D8E4E4;flex:1}
.proyectos-home-card-foot{display:grid;gap:8px;border-top:1px solid rgba(255,253,249,.27);padding-top:12px;font-size:13px;font-weight:700}
.proyectos-home-card-foot span{color:#FFD6B6}.proyectos-home-card-foot a{color:#fff;text-decoration:none}.proyectos-home-card-foot a:hover{text-decoration:underline}
.proyectos-home-nota{font-size:13px;color:#CAD7D9;margin:20px 0 0}
.proyectos-head-inner{display:grid;grid-template-columns:1.5fr .6fr;gap:55px;align-items:center}
.proyectos-aside{align-self:stretch;min-height:280px;background:var(--ink);color:var(--ivory);border-radius:12px;padding:32px;display:flex;flex-direction:column;justify-content:space-between;box-shadow:13px 14px 0 #C9C1B1}
.proyectos-aside-number{font:400 60px var(--serif);color:var(--copper-light)}
.proyectos-aside p{font:400 22px/1.5 var(--serif)}
.proyectos-aside-foot{font:700 11px var(--sans);letter-spacing:.15em;text-transform:uppercase}
.proyectos-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.proyecto-card{display:flex;flex-direction:column;background:var(--white);border:1px solid var(--line);border-radius:12px;padding:30px;min-height:270px}
.proyecto-card h3{font:400 clamp(23px,2.5vw,29px)/1.25 var(--serif);margin:18px 0 12px}
.proyecto-card p{color:var(--muted);font-size:15.5px}
.proyecto-foot{display:flex;justify-content:space-between;gap:20px;align-items:center;flex-wrap:wrap;margin-top:auto;padding-top:15px;border-top:1px solid var(--line)}
.pasos-proyectos{display:grid;gap:12px}
.pasos-proyectos>div{display:grid;grid-template-columns:48px 1fr;gap:12px;border-bottom:1px solid var(--line);padding:10px 0}
.pasos-proyectos span{color:var(--accent);font-weight:700}
.pasos-proyectos p{margin:0;font-size:15px;color:var(--muted)}
.pasos-proyectos strong{color:var(--ink)}
.proyectos-cta{display:flex;justify-content:space-between;align-items:center;gap:40px;border-top:3px solid var(--accent);padding-top:40px}
.proyectos-cta h2{font:400 clamp(29px,3.6vw,42px) var(--serif);max-width:780px}
.proyectos-cta p{max-width:780px;color:var(--muted)}
.proyectos-cta .btn{white-space:nowrap}
@media(max-width:1080px){.menu-button{display:inline-flex}.nav-list{display:none;position:absolute;top:100%;left:-24px;right:-24px;flex-direction:column;align-items:stretch;gap:4px;background:var(--paper);border-bottom:1px solid var(--line);padding:14px 24px 22px;box-shadow:0 16px 24px rgba(27,30,61,.1)}.nav-list.open{display:flex}.nav-list a:not(.btn){font-size:17px;padding:8px 4px}}
@media(max-width:900px){.proyectos-home-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.proyectos-head-inner{grid-template-columns:1fr}.proyectos-aside{min-height:220px}}
@media(max-width:700px){.proyectos-home-intro{grid-template-columns:1fr}.proyectos-cta{flex-direction:column;align-items:stretch}.proyectos-grid{grid-template-columns:1fr}}
@media(max-width:560px){.proyectos-home-grid{grid-template-columns:1fr}.proyectos-home-card{min-height:unset}}