/* ============================================================
   maxilofacial.ai — hoja de estilos global
   Identidad: IA + cirugía maxilofacial. Moderno, tech, confiable.
   ============================================================ */
:root{
  --bg:#0b1020;            /* fondo oscuro (hero, footer) */
  --bg2:#111834;
  --ink:#0f172a;          /* texto sobre claro */
  --mut:#5b667a;          /* texto secundario */
  --line:#e6eaf2;
  --line2:#d3dae7;
  --paper:#ffffff;
  --soft:#f5f7fc;
  --brand:#4f46e5;        /* índigo */
  --brand2:#6366f1;
  --accent:#06b6d4;       /* cian */
  --accent2:#22d3ee;
  --grad:linear-gradient(135deg,#4f46e5 0%,#06b6d4 100%);
  --grad-soft:linear-gradient(135deg,rgba(79,70,229,.12),rgba(6,182,212,.12));
  --ok:#0f9d6b;
  --radius:18px;
  --shadow:0 24px 50px -30px rgba(15,23,42,.5);
  --wrap:1180px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Inter,Arial,sans-serif;
  color:var(--ink);background:var(--paper);line-height:1.6;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
a{color:var(--brand);text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}
[hidden]{display:none!important}

/* ---------- botones ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:12px;padding:12px 20px;font-weight:650;font-size:15px;cursor:pointer;transition:.18s;white-space:nowrap}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 12px 26px -12px rgba(79,70,229,.7)}
.btn-primary:hover{transform:translateY(-1px);filter:brightness(1.06)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.28)}
.btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.08)}
.btn-line{background:#fff;color:var(--ink);border-color:var(--line2)}
.btn-line:hover{border-color:var(--brand);color:var(--brand)}
.btn-sm{padding:9px 15px;font-size:13.5px;border-radius:10px}

/* ---------- header ---------- */
.site-head{position:sticky;top:0;z-index:50;background:rgba(11,16,32,.82);backdrop-filter:saturate(140%) blur(12px);border-bottom:1px solid rgba(255,255,255,.08)}
.site-head .wrap{display:flex;align-items:center;justify-content:space-between;height:66px}
.brand{display:flex;align-items:center;gap:11px;color:#fff}
.brand .logo{width:38px;height:38px;border-radius:11px;background:var(--grad);display:grid;place-items:center;font-weight:800;color:#fff;font-size:19px;box-shadow:0 8px 20px -8px rgba(6,182,212,.8)}
.brand b{font-size:17px;letter-spacing:-.02em;font-weight:750;line-height:1}
.brand span.dom{display:block;font-size:11.5px;color:#8ea2c9;font-weight:500;margin-top:2px}
.nav{display:flex;align-items:center;gap:6px}
.nav a{color:#c7d2e8;font-size:14.5px;font-weight:550;padding:8px 12px;border-radius:9px;transition:.15s}
.nav a:hover{color:#fff;background:rgba(255,255,255,.07)}
.nav .btn-primary{color:#fff;margin-left:8px}
.burger{display:none;background:none;border:0;color:#fff;cursor:pointer;padding:8px}
.burger svg{width:26px;height:26px}
@media(max-width:900px){
  .nav{position:fixed;inset:66px 0 auto 0;flex-direction:column;align-items:stretch;gap:2px;background:var(--bg);padding:14px 18px 22px;border-bottom:1px solid rgba(255,255,255,.1);transform:translateY(-140%);transition:.28s;box-shadow:var(--shadow)}
  .nav.open{transform:translateY(0)}
  .nav a{padding:12px 10px;font-size:16px}
  .nav .btn-primary{margin:8px 0 0}
  .burger{display:block}
}

/* ---------- hero ---------- */
.hero{position:relative;background:radial-gradient(1200px 600px at 15% -10%,rgba(79,70,229,.4),transparent 55%),radial-gradient(900px 500px at 100% 0,rgba(6,182,212,.32),transparent 55%),var(--bg);color:#fff;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);background-size:44px 44px;mask-image:radial-gradient(700px 400px at 50% 0,#000,transparent 75%);opacity:.6}
.hero .wrap{position:relative;padding:76px 24px 88px;text-align:center}
.pill{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);color:#cfe3ff;font-size:13px;font-weight:600;padding:7px 14px;border-radius:999px;margin-bottom:22px}
.pill .dot{width:7px;height:7px;border-radius:50%;background:var(--accent2);box-shadow:0 0 0 4px rgba(34,211,238,.25)}
.hero h1{font-size:clamp(34px,6vw,58px);line-height:1.05;letter-spacing:-.03em;font-weight:800;max-width:16ch;margin:0 auto 20px}
.hero h1 .grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p.lead{font-size:clamp(17px,2.4vw,20px);color:#b9c6e3;max-width:60ch;margin:0 auto 34px}
.hero .cta{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.hero .stats{display:flex;gap:34px;justify-content:center;flex-wrap:wrap;margin-top:52px;color:#93a4c6}
.hero .stats b{display:block;font-size:28px;color:#fff;font-weight:800;letter-spacing:-.02em}
.hero .stats span{font-size:13.5px}

/* ---------- barra "última hora" (noticiario) ---------- */
.newsbar{background:#0e142c;border-bottom:1px solid rgba(255,255,255,.08);color:#c7d2e8;overflow:hidden}
.newsbar .wrap{display:flex;align-items:center;gap:14px;height:44px}
.newsbar .live{flex:none;display:inline-flex;align-items:center;gap:7px;background:var(--grad);color:#fff;font-size:11.5px;font-weight:800;letter-spacing:.08em;padding:5px 12px;border-radius:999px}
.newsbar .live .d{width:7px;height:7px;border-radius:50%;background:#fff;animation:blink 1.4s infinite}
@keyframes blink{0%,100%{opacity:1}50%{opacity:.25}}
.newsbar .items{display:flex;gap:26px;overflow:hidden;white-space:nowrap;mask-image:linear-gradient(90deg,#000 92%,transparent)}
.newsbar .items a{color:#c7d2e8;font-size:13.5px}
.newsbar .items a:hover{color:#fff}
.newsbar .items b{color:var(--accent2);font-weight:750;margin-right:6px}

/* ---------- hero compacto (noticiario) ---------- */
.hero-mini{background:radial-gradient(900px 340px at 20% -40%,rgba(79,70,229,.45),transparent 60%),radial-gradient(700px 300px at 95% -30%,rgba(6,182,212,.35),transparent 60%),var(--bg);color:#fff}
.hero-mini .wrap{padding:38px 24px 34px;display:flex;align-items:flex-end;justify-content:space-between;gap:18px;flex-wrap:wrap}
.hero-mini h1{font-size:clamp(24px,3.6vw,36px);letter-spacing:-.02em;font-weight:800;line-height:1.1}
.hero-mini h1 .grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-mini p{color:#9fb0d4;font-size:15px;margin-top:6px;max-width:60ch}
.hero-mini .date-chip{flex:none;font-size:13px;color:#9fb0d4;border:1px solid rgba(255,255,255,.16);padding:8px 14px;border-radius:999px}

/* ---------- portada: nota principal + laterales ---------- */
.lead-grid{display:grid;grid-template-columns:1.65fr 1fr;gap:24px;align-items:stretch}
@media(max-width:900px){.lead-grid{grid-template-columns:1fr}}
.lead-main{position:relative;border-radius:var(--radius);overflow:hidden;min-height:420px;display:flex;align-items:flex-end;background:var(--bg2);transition:.2s}
.lead-main:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.lead-main img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.lead-main .ov{position:relative;width:100%;padding:120px 28px 26px;background:linear-gradient(180deg,transparent,rgba(8,12,26,.92) 62%);color:#fff}
.lead-main .cat{display:inline-block;font-size:11.5px;font-weight:800;letter-spacing:.06em;text-transform:uppercase;background:var(--grad);padding:5px 12px;border-radius:999px;margin-bottom:12px}
.lead-main h2{font-size:clamp(22px,3vw,32px);line-height:1.15;letter-spacing:-.02em;margin-bottom:10px}
.lead-main p{color:#c3cfe8;font-size:15px;max-width:60ch}
.lead-main .dt{font-size:12.5px;color:#8ea2c9;margin-top:12px}
.side-list{display:flex;flex-direction:column;gap:14px}
.side-item{display:grid;grid-template-columns:118px 1fr;gap:14px;background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:.18s;flex:1}
.side-item:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.side-item .th{background:var(--grad-soft) center/cover;min-height:92px}
.side-item .th img{width:100%;height:100%;object-fit:cover}
.side-item .tx{padding:10px 14px 10px 0;display:flex;flex-direction:column;justify-content:center}
.side-item .k{font-size:10.5px;font-weight:800;letter-spacing:.07em;text-transform:uppercase;color:var(--brand);margin-bottom:4px}
.side-item h3{font-size:14.5px;line-height:1.3;color:var(--ink);letter-spacing:-.01em}
.side-item .dt{font-size:11.5px;color:var(--mut);margin-top:5px}

/* ---------- secciones ---------- */
section{padding:74px 0}
.sec-head{text-align:center;max-width:64ch;margin:0 auto 44px}
.eyebrow{text-transform:uppercase;letter-spacing:.14em;font-size:12.5px;font-weight:750;color:var(--brand)}
.sec-head h2{font-size:clamp(26px,4vw,38px);letter-spacing:-.02em;font-weight:800;margin:10px 0 12px}
.sec-head p{color:var(--mut);font-size:17px}
.sec-alt{background:var(--soft)}

/* ---------- grid de features / apps ---------- */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
@media(max-width:900px){.cards{grid-template-columns:1fr 1fr}}
@media(max-width:620px){.cards{grid-template-columns:1fr}}
.card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:26px;transition:.2s}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--line2)}
.card .ic{width:50px;height:50px;border-radius:14px;background:var(--grad-soft);display:grid;place-items:center;margin-bottom:16px;font-size:24px}
.card h3{font-size:19px;letter-spacing:-.01em;margin-bottom:8px}
.card p{color:var(--mut);font-size:15px}

/* ---------- categorías chips ---------- */
.cats{display:flex;gap:10px;flex-wrap:wrap;justify-content:center;margin-top:30px}
.chip{font-size:14px;font-weight:600;padding:9px 18px;border-radius:999px;border:1px solid var(--line2);color:var(--ink);background:#fff;transition:.15s;cursor:pointer}
.chip:hover,.chip.on{background:var(--grad);color:#fff;border-color:transparent}

/* ---------- listado de posts ---------- */
.posts{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
@media(max-width:900px){.posts{grid-template-columns:1fr 1fr}}
@media(max-width:620px){.posts{grid-template-columns:1fr}}
.pcard{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;transition:.2s}
.pcard:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.pcard .cover{aspect-ratio:16/10;background:var(--grad-soft) center/cover;position:relative;overflow:hidden}
.pcard .cover img{width:100%;height:100%;object-fit:cover;transition:.3s}
.pcard:hover .cover img{transform:scale(1.04)}
.pcard .cat{position:absolute;top:12px;left:12px;font-size:11.5px;font-weight:700;color:#fff;background:rgba(11,16,32,.72);backdrop-filter:blur(4px);padding:5px 11px;border-radius:999px}
.pcard .body{padding:18px 20px 22px;display:flex;flex-direction:column;flex:1}
.pcard .date{font-size:12.5px;color:var(--mut);margin-bottom:8px}
.pcard h3{font-size:18px;line-height:1.3;letter-spacing:-.01em;color:var(--ink);margin-bottom:8px}
.pcard p{font-size:14.5px;color:var(--mut);flex:1}
.pcard .more{margin-top:14px;font-weight:650;color:var(--brand);font-size:14px}
.empty{grid-column:1/-1;text-align:center;color:var(--mut);padding:50px 0}

/* ---------- newsletter ---------- */
.news{background:var(--bg);color:#fff;border-radius:26px;padding:52px 40px;text-align:center;position:relative;overflow:hidden}
.news::before{content:"";position:absolute;inset:0;background:radial-gradient(600px 300px at 100% 0,rgba(6,182,212,.35),transparent 60%),radial-gradient(500px 260px at 0 100%,rgba(79,70,229,.4),transparent 60%)}
.news>*{position:relative}
.news h2{font-size:clamp(24px,3.5vw,34px);letter-spacing:-.02em;margin-bottom:10px}
.news p{color:#b9c6e3;max-width:52ch;margin:0 auto 26px}
.news form{display:flex;gap:10px;max-width:460px;margin:0 auto;flex-wrap:wrap}
.news input{flex:1;min-width:200px;border:1px solid rgba(255,255,255,.2);background:rgba(255,255,255,.08);color:#fff;border-radius:12px;padding:13px 16px;font-size:15px}
.news input::placeholder{color:#8ea2c9}
.news input:focus{outline:none;border-color:var(--accent2)}

/* ---------- forms genéricos ---------- */
.form-card{max-width:640px;margin:0 auto;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow)}
.form-row{margin-bottom:16px}
.form-row label{display:block;font-size:13.5px;font-weight:650;color:var(--mut);margin-bottom:6px}
.form-row input,.form-row textarea{width:100%;border:1px solid var(--line2);border-radius:11px;padding:12px 14px;font-size:15px;font-family:inherit;color:var(--ink)}
.form-row input:focus,.form-row textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(79,70,229,.14)}
.form-row textarea{resize:vertical;min-height:120px}
.hp{position:absolute;left:-9999px}

/* ---------- footer ---------- */
.site-foot{background:var(--bg);color:#c7d2e8;padding:56px 0 30px;margin-top:20px}
.site-foot .top{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:34px}
@media(max-width:760px){.site-foot .top{grid-template-columns:1fr}}
.site-foot .brand{margin-bottom:14px}
.site-foot p.desc{font-size:14.5px;color:#93a4c6;max-width:36ch}
.site-foot h4{color:#fff;font-size:14px;margin-bottom:14px;letter-spacing:.02em}
.site-foot .col a{display:block;color:#a9b7d6;font-size:14.5px;padding:5px 0}
.site-foot .col a:hover{color:#fff}
.site-foot .bottom{border-top:1px solid rgba(255,255,255,.1);margin-top:36px;padding-top:22px;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:13px;color:#7e8fb3}
.disc{font-size:12.5px;color:#7e8fb3;max-width:70ch;margin-top:10px;line-height:1.55}

/* ---------- artículo ---------- */
.crumb{font-size:13px;color:var(--mut);padding:24px 0 0}
.crumb a{color:var(--brand)}
.article{max-width:760px;margin:0 auto;padding:0 24px 40px}
.article .cat-tag{display:inline-block;font-size:12px;font-weight:700;color:#fff;background:var(--grad);padding:5px 13px;border-radius:999px;margin:22px 0 14px}
.article h1{font-size:clamp(28px,5vw,44px);line-height:1.12;letter-spacing:-.02em;margin-bottom:14px}
.article .meta{color:var(--mut);font-size:14.5px;margin-bottom:26px}
.article-cover{border-radius:var(--radius);overflow:hidden;margin-bottom:28px;border:1px solid var(--line)}
.tldr{background:var(--grad-soft);border:1px solid rgba(79,70,229,.2);border-radius:14px;padding:18px 20px;margin-bottom:28px}
.tldr .tag{display:inline-block;font-size:11px;font-weight:800;letter-spacing:.1em;text-transform:uppercase;color:var(--brand);margin-bottom:6px}
.article-body{font-size:17.5px;line-height:1.75;color:#1f2a3d}
.article-body h2{font-size:26px;letter-spacing:-.01em;margin:34px 0 12px}
.article-body h3{font-size:21px;margin:26px 0 10px}
.article-body p{margin:0 0 18px}
.article-body ul,.article-body ol{margin:0 0 18px 22px}
.article-body li{margin-bottom:8px}
.article-body img{border-radius:12px;margin:22px 0}
.article-body figure{margin:24px 0}
.article-body figcaption{font-size:13.5px;color:var(--mut);text-align:center;margin-top:8px}
.article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:2px}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin:30px 0 4px}
.tag-pill{font-size:13px;font-weight:600;color:var(--brand);background:var(--grad-soft);border:1px solid rgba(79,70,229,.18);padding:5px 12px;border-radius:999px;transition:.15s}
.tag-pill:hover{background:var(--grad);color:#fff;border-color:transparent}
.pcard .cat.feat{background:var(--grad)}
.article-cta{background:var(--bg);color:#fff;border-radius:var(--radius);padding:30px;text-align:center;margin:40px 0}
.article-cta h3{font-size:22px;margin-bottom:14px}
.related{margin-top:50px}
.related h2{font-size:22px;margin-bottom:18px}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
@media(max-width:620px){.related-grid{grid-template-columns:1fr}}
.related-grid a{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:.2s}
.related-grid a:hover{box-shadow:var(--shadow);transform:translateY(-2px)}
.related-grid .rc-cover{aspect-ratio:16/10;background:var(--grad-soft) center/cover}
.related-grid .rc-cover img{width:100%;height:100%;object-fit:cover}
.related-grid .rc-b{padding:12px 14px}
.related-grid h3{font-size:15px;line-height:1.3;color:var(--ink)}

/* ---------- página listado blog ---------- */
.page-head{background:var(--bg);color:#fff;padding:56px 0 46px;text-align:center;position:relative;overflow:hidden}
.page-head::before{content:"";position:absolute;inset:0;background:radial-gradient(700px 320px at 50% -20%,rgba(6,182,212,.3),transparent 60%)}
.page-head>*{position:relative}
.page-head h1{font-size:clamp(30px,5vw,46px);letter-spacing:-.02em;margin-bottom:10px}
.page-head p{color:#b9c6e3;font-size:17px}