/* ============================================================
   Dr. Juan Miguel Fernández — Periodoncia e Implantes
   Identidad visual (extendida del mockup original)
   ============================================================ */
:root{
  --navy:#1F3251; --navy-deep:#16253D; --navy-soft:#5A6B85;
  --cream:#FAF8F4; --cream-warm:#F3EFE7; --line:#E5E0D6;
  --gold:#8A7B5E; --gold-light:#C9B98A; --steel:#AEBBD1;
  --white:#FFFFFF; --ink:#243447;
  --wa:#25D366;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  background:var(--cream);color:var(--navy);
  font-family:Georgia,'Times New Roman',serif;line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
.sans{font-family:Arial,Helvetica,sans-serif;}
.container{max-width:1100px;margin:0 auto;padding:0 24px;}
.narrow{max-width:760px;}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}

/* ---------- Header / navegación ---------- */
header{
  border-bottom:1px solid var(--line);background:rgba(250,248,244,.94);
  backdrop-filter:blur(6px);position:sticky;top:0;z-index:50;
}
.nav{display:flex;justify-content:space-between;align-items:center;padding:12px 0;gap:16px;}
.brand{display:flex;align-items:center;gap:12px;}
.brand img{width:44px;height:44px;}
.brand .bn{font-family:Arial,sans-serif;font-size:12.5px;letter-spacing:2px;color:var(--navy);line-height:1.3;}
.brand .bn small{display:block;font-size:9.5px;letter-spacing:2px;color:var(--gold);margin-top:2px;}
nav.menu{display:flex;gap:22px;align-items:center;font-family:Arial,sans-serif;font-size:13px;color:var(--navy-soft);}
nav.menu a{padding:4px 0;border-bottom:2px solid transparent;transition:.2s;}
nav.menu a:hover,nav.menu a.active{color:var(--navy);border-bottom-color:var(--gold);}
.nav-phone{font-family:Arial,sans-serif;font-size:13px;color:var(--navy);display:flex;align-items:center;gap:6px;font-weight:bold;}
.nav-phone span{font-size:10px;color:var(--gold);font-weight:normal;display:block;letter-spacing:1px;}
.btn{
  background:var(--navy);color:var(--cream);padding:10px 20px;border-radius:2px;
  font-family:Arial,sans-serif;font-size:13px;display:inline-block;transition:.2s;cursor:pointer;border:none;
}
.btn:hover{background:var(--navy-deep);}
.btn-gold{background:var(--gold);}
.btn-gold:hover{background:#75694f;}
.btn-ghost{background:transparent;color:var(--navy);border:1px solid var(--navy);}
.btn-ghost:hover{background:var(--navy);color:var(--cream);}
.menu-toggle{display:none;background:none;border:none;font-size:24px;color:var(--navy);cursor:pointer;}

/* ---------- Bloques base ---------- */
section{padding:72px 0;}
.eyebrow{font-family:Arial,sans-serif;font-size:11px;letter-spacing:3px;color:var(--gold);margin-bottom:16px;text-transform:uppercase;}
h1{font-size:44px;font-weight:400;line-height:1.18;letter-spacing:-.5px;}
h2{font-size:30px;font-weight:400;line-height:1.25;margin-bottom:10px;}
h3{font-size:21px;font-weight:400;margin-bottom:10px;}
.lead{font-family:Arial,sans-serif;font-size:16px;line-height:1.7;color:var(--navy-soft);}
p.body{font-family:Arial,sans-serif;font-size:15px;line-height:1.75;color:var(--ink);margin-bottom:16px;}
.sec-intro{font-family:Arial,sans-serif;font-size:15px;color:var(--navy-soft);margin-bottom:36px;max-width:62ch;line-height:1.7;}
.link-under{font-family:Arial,sans-serif;font-size:13px;color:var(--navy);border-bottom:1px solid var(--gold);padding-bottom:2px;transition:.2s;}
.link-under:hover{color:var(--gold);}

/* ---------- Hero ---------- */
.hero{display:grid;grid-template-columns:1.12fr 1fr;gap:48px;align-items:center;padding:72px 0 84px;}
.hero .lead{margin:18px 0 30px;max-width:46ch;}
.hero-actions{display:flex;gap:18px;align-items:center;flex-wrap:wrap;}
.portrait{position:relative;}
.portrait .frame{border-radius:4px;overflow:hidden;border:1px solid var(--line);background:#E9E4D8;box-shadow:0 20px 50px -30px rgba(31,50,81,.5);aspect-ratio:4/5;}
.portrait .frame img{width:100%;height:100%;object-fit:cover;object-position:center top;}
.portrait .plate{position:absolute;bottom:-1px;left:-1px;background:var(--navy);color:var(--cream);padding:14px 20px;border-radius:0 4px 0 4px;font-family:Arial,sans-serif;}
.portrait .plate p:first-child{font-size:14px;}
.portrait .plate p:last-child{font-size:10px;color:var(--steel);letter-spacing:1.5px;margin-top:4px;}

/* ---------- Stats ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.stat{padding:30px 12px;text-align:center;border-right:1px solid var(--line);}
.stat:last-child{border-right:none;}
.stat .num{font-size:30px;color:var(--navy);}
.stat .lbl{font-family:Arial,sans-serif;font-size:11px;color:var(--gold);margin-top:8px;letter-spacing:.5px;}

/* ---------- Tarjetas ---------- */
.cards2{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.cards3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.card{background:var(--white);border:1px solid var(--line);padding:32px;border-radius:4px;transition:.25s;}
.card:hover{border-color:var(--gold-light);transform:translateY(-3px);box-shadow:0 16px 40px -28px rgba(31,50,81,.45);}
.card .kicker{font-family:Arial,sans-serif;font-size:11px;letter-spacing:2px;color:var(--gold);margin-bottom:12px;}
.card p{font-family:Arial,sans-serif;font-size:14px;line-height:1.7;color:var(--navy-soft);}
.card .more{display:inline-block;margin-top:18px;font-family:Arial,sans-serif;font-size:12px;color:var(--navy);border-bottom:1px solid var(--gold);padding-bottom:2px;}

/* ---------- Banda oscura (Criterio Clínico) ---------- */
.dark{background:var(--navy);color:var(--cream);}
.dark .eyebrow{color:var(--gold-light);}
.dark h2{color:var(--cream);}
.dark p{font-family:Arial,sans-serif;font-size:15px;color:var(--steel);line-height:1.75;max-width:62ch;}
.dark .link-gold{font-family:Arial,sans-serif;font-size:13px;color:var(--gold-light);border-bottom:1px solid var(--gold-light);padding-bottom:2px;}

/* ---------- Lista de artículos ---------- */
.article-list{display:grid;gap:2px;}
.article-item{background:var(--white);border:1px solid var(--line);padding:26px 30px;display:flex;justify-content:space-between;align-items:center;gap:24px;transition:.2s;}
.article-item:hover{border-color:var(--gold-light);}
.article-item .meta{font-family:Arial,sans-serif;font-size:11px;letter-spacing:1.5px;color:var(--gold);margin-bottom:8px;}
.article-item h3{font-size:20px;margin-bottom:0;}
.article-item .excerpt{font-family:Arial,sans-serif;font-size:13.5px;color:var(--navy-soft);margin-top:8px;line-height:1.6;}

/* ---------- Proceso (pasos) ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:step;}
.step{padding-top:20px;border-top:2px solid var(--gold-light);}
.step .n{font-family:Arial,sans-serif;font-size:12px;color:var(--gold);letter-spacing:2px;margin-bottom:10px;}
.step h4{font-size:17px;font-weight:400;margin-bottom:8px;}
.step p{font-family:Arial,sans-serif;font-size:13.5px;color:var(--navy-soft);line-height:1.6;}

/* ---------- FAQ ---------- */
.faq{border-top:1px solid var(--line);}
.faq details{border-bottom:1px solid var(--line);padding:20px 0;}
.faq summary{font-size:18px;cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:16px;}
.faq summary::-webkit-details-marker{display:none;}
.faq summary::after{content:'+';font-family:Arial,sans-serif;color:var(--gold);font-size:22px;transition:.2s;}
.faq details[open] summary::after{content:'–';}
.faq p{font-family:Arial,sans-serif;font-size:14.5px;color:var(--ink);line-height:1.7;margin-top:14px;max-width:66ch;}

/* ---------- Casos (antes/después) ---------- */
.case{background:var(--white);border:1px solid var(--line);border-radius:4px;overflow:hidden;}
.case .imgs{display:grid;grid-template-columns:1fr 1fr;gap:2px;background:var(--line);}
.case .imgs figure{position:relative;background:var(--cream-warm);aspect-ratio:4/3;display:flex;align-items:center;justify-content:center;}
.case .imgs figcaption{position:absolute;top:10px;left:10px;background:var(--navy);color:var(--cream);font-family:Arial,sans-serif;font-size:10px;letter-spacing:1.5px;padding:4px 10px;border-radius:2px;}
.case .placeholder{font-family:Arial,sans-serif;font-size:12px;color:var(--navy-soft);text-align:center;padding:20px;}
.case .body-txt{padding:26px 30px;}
.case .tag{font-family:Arial,sans-serif;font-size:11px;letter-spacing:1.5px;color:var(--gold);margin-bottom:10px;}
.case .body-txt p{font-family:Arial,sans-serif;font-size:14px;color:var(--navy-soft);line-height:1.7;}

/* ---------- Reseñas ---------- */
.reviews{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.review{background:var(--white);border:1px solid var(--line);border-radius:4px;padding:28px;}
.review .stars{color:var(--gold);letter-spacing:3px;font-size:15px;margin-bottom:14px;}
.review q{font-family:Georgia,serif;font-size:16px;line-height:1.6;color:var(--ink);display:block;margin-bottom:16px;}
.review .who{font-family:Arial,sans-serif;font-size:12.5px;color:var(--navy-soft);}
.review .who b{color:var(--navy);font-weight:normal;}

/* ---------- Chat de Ericka (integración) ---------- */
.ericka-band{background:var(--cream-warm);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.ericka-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;}
.chat-mock{background:var(--white);border:1px solid var(--line);border-radius:12px;padding:20px;box-shadow:0 20px 50px -30px rgba(31,50,81,.5);max-width:380px;}
.chat-head{display:flex;align-items:center;gap:12px;padding-bottom:14px;border-bottom:1px solid var(--line);margin-bottom:16px;}
.chat-head .av{width:40px;height:40px;border-radius:50%;background:var(--navy);color:var(--cream);display:flex;align-items:center;justify-content:center;font-family:Arial,sans-serif;font-size:13px;font-weight:bold;letter-spacing:.5px;}
.chat-head .nm{font-family:Arial,sans-serif;}
.chat-head .nm b{font-size:14px;color:var(--navy);display:block;}
.chat-head .nm span{font-size:11px;color:var(--wa);}
.bubble{font-family:Arial,sans-serif;font-size:13.5px;line-height:1.5;padding:10px 14px;border-radius:12px;margin-bottom:10px;max-width:82%;}
.bubble.them{background:var(--cream-warm);color:var(--ink);border-bottom-left-radius:3px;}
.bubble.me{background:var(--navy);color:var(--cream);margin-left:auto;border-bottom-right-radius:3px;}

/* ---------- CTA band ---------- */
.cta-band{background:var(--white);border-top:1px solid var(--line);}
.cta-inner{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:20px;}
.cta-inner .q{font-size:22px;}
.cta-inner .s{font-family:Arial,sans-serif;font-size:12.5px;color:var(--gold);margin-top:6px;}
.btn-wa{display:inline-flex;align-items:center;gap:8px;background:var(--wa);color:#fff;}
.btn-wa:hover{background:#1eb257;}

/* ---------- WhatsApp flotante ---------- */
.wa-float{position:fixed;bottom:24px;right:24px;z-index:60;background:var(--wa);color:#fff;width:58px;height:58px;border-radius:50%;display:flex;align-items:center;justify-content:center;box-shadow:0 8px 24px rgba(37,211,102,.45);transition:.2s;}
.wa-float:hover{transform:scale(1.06);}
.wa-float svg{width:30px;height:30px;}

/* ---------- Footer ---------- */
footer{border-top:1px solid var(--line);padding:40px 0 32px;background:var(--cream-warm);}
.foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:32px;margin-bottom:28px;}
.foot-grid h5{font-family:Arial,sans-serif;font-size:11px;letter-spacing:2px;color:var(--gold);margin-bottom:14px;text-transform:uppercase;}
.foot-grid a,.foot-grid p{font-family:Arial,sans-serif;font-size:13px;color:var(--navy-soft);line-height:2;}
.foot-grid a:hover{color:var(--navy);}
.foot-brand{font-family:Arial,sans-serif;font-size:13px;letter-spacing:1px;color:var(--navy);margin-bottom:10px;}
.foot-bottom{border-top:1px solid var(--line);padding-top:20px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;font-family:Arial,sans-serif;font-size:11.5px;color:var(--navy-soft);}

/* ---------- Utilidades ---------- */
.center{text-align:center;}
.mt-s{margin-top:16px;}.mt-m{margin-top:28px;}.mt-l{margin-top:44px;}
.disclaimer{font-family:Arial,sans-serif;font-size:11px;color:var(--navy-soft);font-style:italic;margin-top:12px;}

/* ---------- Responsive ---------- */
@media (max-width:860px){
  nav.menu{display:none;}
  .menu-toggle{display:block;}
  .nav-phone span{display:none;}
  .hero{grid-template-columns:1fr;padding:44px 0 56px;gap:32px;}
  h1{font-size:33px;}
  h2{font-size:25px;}
  .stats{grid-template-columns:repeat(2,1fr);}
  .stat:nth-child(2){border-right:none;}
  .stat:nth-child(-n+2){border-bottom:1px solid var(--line);}
  .cards2,.cards3,.reviews,.ericka-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr 1fr;}
  .foot-grid{grid-template-columns:1fr;gap:24px;}
  .article-item{flex-direction:column;align-items:flex-start;}
  section{padding:52px 0;}
}
@media (max-width:480px){
  .steps{grid-template-columns:1fr;}
  .case .imgs{grid-template-columns:1fr;}
}


/* ---------- Marcos de imagen que llenan sin margen (object-fit cover) ---------- */
.img-frame{border-radius:4px;overflow:hidden;border:1px solid var(--line);box-shadow:0 20px 50px -34px rgba(31,50,81,.5);aspect-ratio:4/3;}
.img-frame img{width:100%;height:100%;object-fit:cover;object-position:center;display:block;}
.img-frame.dark-border{border-color:rgba(201,185,138,.3);}