/* OSECH Probanza — estilos compartidos (landing, FAQ, aviso, blog) */
:root{
  --bg:#F6F4EF; --bg-2:#ECE7DC; --card:#FFFFFF; --ink:#13293A; --ink-soft:#374C58;
  --mut:#6A777C; --blue:#176A9C; --blue-deep:#0F5374; --line:rgba(19,41,58,.13);
  --footer:#0E2433; --on-dark:#E7ECF1; --on-dark-mut:#9DB0BC; --line-dark:rgba(231,236,241,.16);
  --ok:#1F8A4C; --bad:#B3432B;
  --display:'Playfair Display',Georgia,serif; --body:'Barlow',system-ui,sans-serif;
  --util:'Barlow Semi Condensed','Barlow',sans-serif; --mono:'IBM Plex Mono',ui-monospace,monospace;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--body);color:var(--ink);background:var(--bg);line-height:1.55;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
.wrap{max-width:1120px;margin:0 auto;padding:0 24px}
.eyebrow{font-family:var(--util);text-transform:uppercase;letter-spacing:.22em;font-size:.74rem;font-weight:600;color:var(--blue-deep)}

header{position:sticky;top:0;z-index:50;background:rgba(246,244,239,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{display:flex;flex-direction:column;line-height:1}
.brand .mark{font-family:var(--display);font-weight:700;letter-spacing:.16em;font-size:1.35rem;color:var(--ink)}
.brand .mark span{color:var(--blue)}
.brand .sub{font-family:var(--util);text-transform:uppercase;letter-spacing:.18em;font-size:.58rem;color:var(--mut);margin-top:5px}
.nav-links{display:flex;align-items:center;gap:26px}
.nav-links a{font-family:var(--util);text-transform:uppercase;letter-spacing:.12em;font-size:.82rem;color:var(--ink);opacity:.78;transition:opacity .2s,color .2s}
.nav-links a:hover{opacity:1;color:var(--blue-deep)}
.btn{display:inline-block;font-family:var(--util);text-transform:uppercase;letter-spacing:.1em;font-size:.82rem;font-weight:600;padding:11px 20px;border-radius:2px;cursor:pointer;border:0;transition:transform .15s,background .2s,color .2s,border-color .2s}
.btn-primary{background:var(--blue);color:#fff}
.btn-primary:hover{background:var(--blue-deep);transform:translateY(-1px)}
.btn-ghost{background:transparent;border:1px solid var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--blue);color:var(--blue-deep)}
.nav .btn{padding:9px 16px}

section{padding:80px 0}
.sec-head{max-width:62ch;margin-bottom:44px}
.sec-head h2{font-family:var(--display);font-weight:600;font-size:clamp(1.7rem,3.2vw,2.4rem);line-height:1.12;margin:12px 0}
.sec-head p{color:var(--mut);font-size:1.03rem;max-width:58ch}

.hero{background:radial-gradient(780px 420px at 84% -10%, rgba(23,106,156,.14), transparent 60%),var(--bg);padding:88px 0 72px}
.hero-inner{display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center}
.hero h1{font-family:var(--display);font-weight:600;font-size:clamp(2.2rem,4.8vw,3.6rem);line-height:1.08;letter-spacing:-.01em;max-width:16ch;margin:16px 0 20px}
.hero h1 em{font-style:italic;color:var(--blue-deep)}
.hero .lede{font-size:1.14rem;font-weight:300;color:var(--ink-soft);max-width:50ch;margin-bottom:30px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.privacy{margin-top:36px;display:flex;gap:12px;align-items:flex-start;background:var(--card);border:1px solid var(--line);border-left:3px solid var(--blue);border-radius:3px;padding:15px 18px;max-width:58ch;box-shadow:0 14px 40px -28px rgba(19,41,58,.5)}
.privacy svg{flex:none;margin-top:2px}
.privacy p{font-size:.94rem;color:var(--ink-soft)}
.privacy b{color:var(--ink)}

.hashcard{background:var(--card);border:1px solid var(--line);border-radius:6px;box-shadow:0 30px 60px -34px rgba(19,41,58,.55);overflow:hidden}
.hashcard .hd{display:flex;justify-content:space-between;align-items:center;padding:14px 18px;border-bottom:1px solid var(--line);background:var(--bg-2)}
.hashcard .hd .t{font-family:var(--util);text-transform:uppercase;letter-spacing:.14em;font-size:.7rem;font-weight:600;color:var(--blue-deep)}
.hashcard .hd .dots{display:flex;gap:5px}
.hashcard .hd .dots i{width:8px;height:8px;border-radius:50%;background:var(--line);display:block}
.hashcard .bd{padding:20px 18px 22px}
.hrow{display:flex;gap:12px;align-items:center;padding:10px 0;border-bottom:1px dashed var(--line)}
.hrow:last-child{border-bottom:0}
.hrow .lbl{font-family:var(--util);text-transform:uppercase;letter-spacing:.12em;font-size:.64rem;color:var(--mut);min-width:92px}
.hrow .val{font-size:.92rem;color:var(--ink)}
.hero-hash{font-family:var(--mono);font-size:.78rem;line-height:1.7;color:var(--blue-deep);word-break:break-all;background:rgba(23,106,156,.06);border:1px solid rgba(23,106,156,.18);border-radius:4px;padding:12px 14px;margin-top:12px}
.sealtag{display:inline-flex;align-items:center;gap:8px;font-family:var(--util);text-transform:uppercase;letter-spacing:.12em;font-size:.68rem;font-weight:600;color:#fff;background:var(--blue);border-radius:2px;padding:5px 10px}

.how-grid{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line)}
.how{padding:30px 26px 34px;border-bottom:1px solid var(--line);border-right:1px solid var(--line)}
.how:nth-child(3n){border-right:0}
.how .num{font-family:var(--util);color:var(--blue-deep);letter-spacing:.16em;font-size:.76rem;font-weight:600}
.how h3{font-family:var(--display);font-weight:600;font-size:1.28rem;margin:13px 0 9px}
.how p{color:var(--mut);font-size:.95rem}

.uses-grid{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line)}
.use{padding:28px 24px 32px;border-bottom:1px solid var(--line);border-right:1px solid var(--line)}
.use:nth-child(4n){border-right:0}
.use .num{font-family:var(--util);color:var(--blue-deep);letter-spacing:.16em;font-size:.72rem;font-weight:600}
.use h3{font-family:var(--display);font-weight:600;font-size:1.18rem;margin:12px 0 8px}
.use p{color:var(--mut);font-size:.92rem}

.reg{background:var(--bg-2)}
.reg-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:40px}
.reg-col h3{font-family:var(--display);font-weight:600;font-size:1.3rem;margin:14px 0 10px}
.reg-col p{color:var(--ink-soft);font-size:.96rem}
.reg-col p + p{margin-top:10px}
.reg-col .tagline{font-family:var(--util);text-transform:uppercase;letter-spacing:.14em;font-size:.7rem;font-weight:600;color:var(--blue-deep);border-bottom:1px solid var(--line);padding-bottom:10px;display:block}

.sec-strip{background:var(--footer);color:var(--on-dark-mut);padding:64px 0}
.sec-strip .eyebrow{color:#5FA7CE}
.sec-strip h2{font-family:var(--display);font-weight:600;font-size:clamp(1.6rem,3vw,2.2rem);color:var(--on-dark);margin:12px 0 26px;max-width:24ch}
.sec-points{display:grid;grid-template-columns:repeat(3,1fr);gap:34px}
.sec-pt h4{font-family:var(--util);text-transform:uppercase;letter-spacing:.12em;font-size:.78rem;font-weight:600;color:var(--on-dark);margin-bottom:8px;display:flex;align-items:center;gap:9px}
.sec-pt p{font-size:.92rem}

.final{background:radial-gradient(640px 360px at 18% 130%, rgba(23,106,156,.15), transparent 60%),var(--bg);border-top:2px solid var(--blue);text-align:center}
.final h2{font-family:var(--display);font-weight:600;font-size:clamp(1.9rem,3.8vw,2.8rem);line-height:1.1;margin:0 auto 14px;max-width:22ch}
.final p{color:var(--mut);max-width:52ch;margin:0 auto 28px;font-size:1.04rem}
.final .hero-cta{justify-content:center}

footer{background:var(--footer);color:var(--on-dark-mut);padding:46px 0 36px}
.foot{display:flex;justify-content:space-between;gap:26px;flex-wrap:wrap;align-items:flex-start}
.foot .mark{font-family:var(--display);font-weight:700;letter-spacing:.16em;font-size:1.2rem;color:var(--on-dark)}
.foot .mark span{color:var(--blue)}
.foot p{font-size:.88rem;max-width:38ch;margin-top:10px}
.foot a{display:block;font-size:.92rem;margin-bottom:8px;color:var(--on-dark);opacity:.85}
.foot a:hover{opacity:1}
.foot h4{font-family:var(--util);text-transform:uppercase;letter-spacing:.14em;font-size:.72rem;color:#5FA7CE;margin-bottom:12px}
.foot-bottom{border-top:1px solid var(--line-dark);margin-top:34px;padding-top:20px;font-size:.8rem;display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px}

/* FAQ */
.faq-item{background:var(--card);border:1px solid var(--line);border-radius:6px;margin-bottom:14px;overflow:hidden}
.faq-item summary{cursor:pointer;padding:18px 22px;font-family:var(--display);font-weight:600;font-size:1.08rem;list-style:none;display:flex;justify-content:space-between;gap:14px;align-items:center}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:'+';font-family:var(--util);color:var(--blue);font-size:1.3rem;flex:none}
.faq-item[open] summary::after{content:'–'}
.faq-item .a{padding:0 22px 20px;color:var(--ink-soft);font-size:.97rem}
.faq-item .a p + p{margin-top:10px}

/* Artículos / prosa legal */
.article{max-width:760px;margin:0 auto;padding:64px 24px 80px}
.article h1{font-family:var(--display);font-weight:600;font-size:clamp(1.9rem,4vw,2.7rem);line-height:1.12;margin:14px 0 10px}
.article .meta{font-family:var(--util);text-transform:uppercase;letter-spacing:.14em;font-size:.72rem;color:var(--mut);margin-bottom:34px}
.article h2{font-family:var(--display);font-weight:600;font-size:1.5rem;margin:38px 0 12px}
.article h3{font-family:var(--display);font-weight:600;font-size:1.2rem;margin:28px 0 10px}
.article p{margin-bottom:16px;color:var(--ink-soft);font-size:1.02rem}
.article strong{color:var(--ink)}
.article ul,.article ol{margin:0 0 16px 22px;color:var(--ink-soft)}
.article li{margin-bottom:8px}
.article .callout{background:var(--card);border:1px solid var(--line);border-left:3px solid var(--blue);border-radius:3px;padding:16px 20px;margin:24px 0}
.article .callout p{margin-bottom:0;font-size:.96rem}
.article a{color:var(--blue-deep);text-decoration:underline;text-underline-offset:3px}

/* Blog índice */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.post-card{background:var(--card);border:1px solid var(--line);border-radius:6px;padding:26px 24px 28px;display:flex;flex-direction:column;transition:transform .15s,box-shadow .2s}
.post-card:hover{transform:translateY(-3px);box-shadow:0 20px 44px -30px rgba(19,41,58,.5)}
.post-card .k{font-family:var(--util);text-transform:uppercase;letter-spacing:.16em;font-size:.68rem;font-weight:600;color:var(--blue-deep)}
.post-card h3{font-family:var(--display);font-weight:600;font-size:1.22rem;line-height:1.25;margin:12px 0 10px}
.post-card p{color:var(--mut);font-size:.93rem;flex:1}
.post-card .more{font-family:var(--util);text-transform:uppercase;letter-spacing:.1em;font-size:.76rem;font-weight:600;color:var(--blue-deep);margin-top:16px}

@media(max-width:1000px){
  .uses-grid{grid-template-columns:1fr 1fr}
  .use:nth-child(2n){border-right:0}
  .post-grid{grid-template-columns:1fr}
}
@media(max-width:900px){
  .hero-inner{grid-template-columns:1fr;gap:30px}
  .how-grid,.uses-grid,.reg-grid,.sec-points{grid-template-columns:1fr}
  .how,.use{border-right:0}
  .nav-links a:not(.btn){display:none}
  section{padding:60px 0}
  .hero{padding:64px 0 56px}
}
@media(prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important;scroll-behavior:auto!important}}
:focus-visible{outline:2px solid var(--blue);outline-offset:3px}