/* =========================================================
   Centro MDRS — Hoja de estilos principal
   Paleta basada en la identidad institucional
   ========================================================= */

:root{
  --azul:        #0F4C81;   /* Azul institucional */
  --azul-oscuro: #08345A;   /* Azul oscuro        */
  --celeste:     #4FB8E8;   /* Celeste médico     */
  --blanco:      #FFFFFF;
  --gris:        #F5F7FA;   /* Gris claro         */
  --texto:       #2c3a4b;
  --texto-suave: #5e6b7a;
  --radio:       14px;
  --sombra:      0 14px 40px rgba(8,52,90,.10);
  --sombra-sm:   0 6px 20px rgba(8,52,90,.08);
  --trans:       .35s cubic-bezier(.2,.7,.3,1);
  --max:         1200px;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:80px}
body{
  font-family:'Open Sans',system-ui,sans-serif;
  color:var(--texto);
  line-height:1.7;
  background:var(--blanco);
  overflow-x:hidden;
}
h1,h2,h3,h4{font-family:'Montserrat',sans-serif;line-height:1.2;color:var(--azul-oscuro)}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
ul{list-style:none}

.container{width:90%;max-width:var(--max);margin:0 auto}

/* ---------- Botones ---------- */
.btn{
  display:inline-block;border:none;cursor:pointer;font-family:'Montserrat',sans-serif;
  font-weight:600;font-size:.95rem;padding:.8rem 1.8rem;border-radius:50px;
  transition:var(--trans);text-align:center;
}
.btn-primary{background:linear-gradient(135deg,var(--celeste),var(--azul));color:#fff;box-shadow:0 8px 22px rgba(15,76,129,.3)}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 12px 28px rgba(15,76,129,.42)}
.btn-light{background:#fff;color:var(--azul)}
.btn-light:hover{transform:translateY(-3px);box-shadow:var(--sombra-sm)}
.btn-lg{padding:1rem 2.6rem;font-size:1.05rem}
.btn-block{width:100%}

/* ---------- Header / Nav ---------- */
.header{
  position:fixed;top:0;left:0;width:100%;z-index:1000;
  background:rgba(255,255,255,.96);backdrop-filter:blur(8px);
  box-shadow:0 2px 18px rgba(8,52,90,.06);transition:var(--trans);
}
.header.shrink{box-shadow:0 4px 22px rgba(8,52,90,.12)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:74px}
.brand{display:flex;align-items:center;gap:.6rem}
.brand-logo{height:46px;width:auto}
.brand-text{font-family:'Montserrat',sans-serif;font-weight:600;color:var(--azul-oscuro);font-size:1.25rem;letter-spacing:.5px}
.brand-text strong{color:var(--azul)}
.nav-list{display:flex;align-items:center;gap:1.5rem}
.nav-link{font-family:'Montserrat',sans-serif;font-weight:500;font-size:.92rem;color:var(--texto);position:relative;padding:.3rem 0}
.nav-link::after{content:'';position:absolute;left:0;bottom:-3px;width:0;height:2px;background:var(--celeste);transition:var(--trans)}
.nav-link:hover{color:var(--azul)}
.nav-link:hover::after{width:100%}
.nav-cta{background:var(--azul);color:#fff;padding:.55rem 1.3rem;border-radius:50px}
.nav-cta::after{display:none}
.nav-cta:hover{background:var(--azul-oscuro);color:#fff}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:6px}
.nav-toggle span{width:26px;height:3px;background:var(--azul);border-radius:3px;transition:var(--trans)}
.nav-toggle.active span:nth-child(1){transform:translateY(8px) rotate(45deg)}
.nav-toggle.active span:nth-child(2){opacity:0}
.nav-toggle.active span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}

/* ---------- Hero ---------- */
.hero{
  position:relative;min-height:100vh;display:flex;align-items:center;
  background:url('../images/hero.jpg') center/cover no-repeat;
  color:#fff;text-align:center;padding-top:74px;
}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(120deg,rgba(8,52,90,.92),rgba(15,76,129,.78) 55%,rgba(79,184,232,.55))}
.hero-content{position:relative;z-index:2;max-width:860px;margin:0 auto}
.hero-logo{height:96px;width:auto;margin:0 auto 1.2rem}
.hero-eyebrow{font-family:'Montserrat',sans-serif;letter-spacing:4px;text-transform:uppercase;font-size:.85rem;color:var(--celeste);font-weight:600;margin-bottom:.8rem}
.hero-title{color:#fff;font-size:clamp(2rem,5vw,3.4rem);font-weight:800;margin-bottom:1.1rem;text-shadow:0 2px 18px rgba(0,0,0,.25)}
.hero-subtitle{font-size:clamp(1rem,2vw,1.3rem);max-width:620px;margin:0 auto 2rem;opacity:.95}
.hero-scroll{position:absolute;bottom:26px;left:50%;transform:translateX(-50%);color:#fff;font-size:1.6rem;z-index:2;animation:bounce 1.8s infinite}
@keyframes bounce{0%,100%{transform:translate(-50%,0)}50%{transform:translate(-50%,10px)}}

/* ---------- Secciones genéricas ---------- */
.section{padding:5.5rem 0}
.section-alt{background:var(--gris)}
.eyebrow{display:block;font-family:'Montserrat',sans-serif;font-weight:600;letter-spacing:3px;text-transform:uppercase;font-size:.8rem;color:var(--celeste)}
.eyebrow.center{text-align:center}
.section-title{font-size:clamp(1.6rem,3.5vw,2.4rem);font-weight:700;text-align:center;margin:.4rem 0 1rem}
.section-title.left{text-align:left}
.section-title::after{content:'';display:block;width:70px;height:4px;border-radius:4px;background:linear-gradient(90deg,var(--celeste),var(--azul));margin:1rem auto 0}
.section-title.left::after{margin:1rem 0 0}
.section-lead{text-align:center;max-width:780px;margin:0 auto 2.8rem;color:var(--texto-suave)}

/* ---------- Dos columnas ---------- */
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:3rem;align-items:center}
.two-col.reverse .two-col-img{order:2}
.two-col-img img{border-radius:var(--radio);box-shadow:var(--sombra);width:100%;object-fit:cover}
.two-col-text p{margin-bottom:1rem;color:var(--texto-suave)}
.mv-grid{display:grid;grid-template-columns:1fr 1fr;gap:1.2rem;margin:1.4rem 0 1.6rem}
.mv-card{background:var(--gris);border-left:4px solid var(--celeste);padding:1.1rem 1.2rem;border-radius:10px}
.mv-card h3{color:var(--azul);font-size:1.05rem;margin-bottom:.4rem}
.mv-card p{font-size:.88rem;margin:0}

/* ---------- ¿Por qué elegirnos? ---------- */
.features{display:flex;flex-direction:column;gap:1.4rem}
.feature{display:flex;gap:1rem;align-items:flex-start}
.feature-icon{flex:0 0 52px;height:52px;border-radius:14px;display:grid;place-items:center;font-size:1.4rem;color:#fff;background:linear-gradient(135deg,var(--celeste),var(--azul))}
.feature h3{font-size:1.1rem;color:var(--azul);margin-bottom:.2rem}
.feature p{color:var(--texto-suave);font-size:.93rem}
.partners{text-align:center;margin-top:3.5rem;padding-top:2.4rem;border-top:1px solid #dde5ee}
.partners-label{font-family:'Montserrat',sans-serif;font-weight:600;color:var(--texto-suave);margin-bottom:1.4rem}
.partners-logos{display:flex;justify-content:center;align-items:center;gap:3rem;flex-wrap:wrap}
.partners-logos img{height:54px;width:auto;object-fit:contain;filter:saturate(.9)}

/* ---------- Tarjetas (grids) ---------- */
.cards-grid{display:grid;gap:1.8rem}
.cards-4{grid-template-columns:repeat(4,1fr)}
.cards-3{grid-template-columns:repeat(3,1fr)}
.card{background:#fff;border-radius:var(--radio);overflow:hidden;box-shadow:var(--sombra-sm);transition:var(--trans);display:flex;flex-direction:column}
.card:hover{transform:translateY(-8px);box-shadow:var(--sombra)}
.card-img{height:200px;overflow:hidden}
.card-img img{width:100%;height:100%;object-fit:cover;transition:var(--trans)}
.card:hover .card-img img{transform:scale(1.08)}
.card-body{padding:1.4rem;flex:1}
.card-body h3{font-size:1.12rem;color:var(--azul);margin-bottom:.7rem}
.card-body p{color:var(--texto-suave);font-size:.9rem}
.service-card ul{margin-top:.3rem}
.service-card li{position:relative;padding-left:1.3rem;margin-bottom:.45rem;color:var(--texto-suave);font-size:.9rem}
.service-card li::before{content:'✓';position:absolute;left:0;color:var(--celeste);font-weight:700}

/* ---------- Equipo médico ---------- */
.team-grid .doctor{
  background:#fff;border-radius:var(--radio);box-shadow:var(--sombra-sm);
  padding:1.8rem 1.4rem;text-align:center;transition:var(--trans);
}
.doctor:hover{transform:translateY(-8px);box-shadow:var(--sombra)}
.doctor-photo{width:128px;height:128px;margin:0 auto 1rem;border-radius:50%;overflow:hidden;border:4px solid var(--gris);box-shadow:0 6px 16px rgba(8,52,90,.15)}
.doctor-photo img{width:100%;height:100%;object-fit:cover}
.doctor h3{font-size:1.12rem;margin-bottom:.25rem}
.doctor-spec{display:block;color:var(--celeste);font-family:'Montserrat',sans-serif;font-weight:600;font-size:.82rem;margin-bottom:.8rem}
.doctor p{color:var(--texto-suave);font-size:.88rem}

/* ---------- Banner CTA ---------- */
.cta-banner{
  margin-top:3rem;background:linear-gradient(120deg,var(--azul),var(--celeste));
  border-radius:var(--radio);padding:2.2rem;text-align:center;color:#fff;
  display:flex;flex-direction:column;align-items:center;gap:1.2rem;
}
.cta-banner p{font-family:'Montserrat',sans-serif;font-weight:700;font-size:clamp(1.2rem,2.5vw,1.7rem)}

/* ---------- Galería ---------- */
.gallery{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem}
.gallery-item{border-radius:12px;overflow:hidden;cursor:pointer;position:relative;height:200px}
.gallery-item img{width:100%;height:100%;object-fit:cover;transition:var(--trans)}
.gallery-item::after{content:'+';position:absolute;inset:0;display:grid;place-items:center;font-size:2rem;color:#fff;background:rgba(15,76,129,.0);opacity:0;transition:var(--trans)}
.gallery-item:hover img{transform:scale(1.1)}
.gallery-item:hover::after{background:rgba(15,76,129,.45);opacity:1}

/* ---------- Lightbox ---------- */
.lightbox{position:fixed;inset:0;background:rgba(8,20,35,.92);z-index:2000;display:none;align-items:center;justify-content:center}
.lightbox.open{display:flex}
.lightbox img{max-width:88%;max-height:84%;border-radius:8px;box-shadow:0 20px 60px rgba(0,0,0,.6)}
.lightbox-close{position:absolute;top:20px;right:30px;color:#fff;font-size:2.6rem;cursor:pointer;line-height:1}
.lightbox-nav{position:absolute;top:50%;transform:translateY(-50%);color:#fff;font-size:2.4rem;cursor:pointer;padding:1rem;user-select:none}
.lb-prev{left:2%}.lb-next{right:2%}

/* ---------- Testimonios slider ---------- */
.slider{position:relative;max-width:820px;margin:0 auto;overflow:hidden;border-radius:var(--radio)}
.slides{display:flex;transition:transform .6s ease}
.slide{min-width:100%;background:#fff;box-shadow:var(--sombra-sm);padding:2.6rem 3rem;text-align:center;border-radius:var(--radio)}
.stars{color:#f5b50a;font-size:1.3rem;letter-spacing:2px;margin-bottom:1rem}
.quote{font-size:1.12rem;font-style:italic;color:var(--texto);margin-bottom:1.2rem}
.patient{font-family:'Montserrat',sans-serif;font-weight:600;color:var(--azul)}
.slider-btn{position:absolute;top:50%;transform:translateY(-50%);background:rgba(255,255,255,.9);border:none;width:44px;height:44px;border-radius:50%;cursor:pointer;color:var(--azul);font-size:1.1rem;box-shadow:var(--sombra-sm);transition:var(--trans)}
.slider-btn:hover{background:var(--azul);color:#fff}
.prev{left:8px}.next{right:8px}
.slider-dots{display:flex;justify-content:center;gap:.5rem;margin-top:1.4rem}
.dot{width:11px;height:11px;border-radius:50%;background:#cdd8e4;cursor:pointer;transition:var(--trans)}
.dot.active{background:var(--azul);transform:scale(1.2)}

/* ---------- Contacto ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:2.5rem;margin-bottom:2.5rem}
.contact-form{background:#fff;padding:2rem;border-radius:var(--radio);box-shadow:var(--sombra-sm)}
.field{margin-bottom:1.1rem}
.field label{display:block;font-family:'Montserrat',sans-serif;font-weight:600;font-size:.85rem;margin-bottom:.35rem;color:var(--azul-oscuro)}
.field input,.field textarea{width:100%;padding:.8rem 1rem;border:1.5px solid #dde5ee;border-radius:10px;font-family:inherit;font-size:.95rem;transition:var(--trans);background:var(--gris)}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--celeste);background:#fff;box-shadow:0 0 0 3px rgba(79,184,232,.15)}
.field.invalid input,.field.invalid textarea{border-color:#e15b5b;background:#fdeeee}
.error-msg{display:block;color:#e15b5b;font-size:.78rem;margin-top:.25rem;min-height:1em}
.form-success{display:none;margin-top:1rem;background:#e6f6ee;color:#1c7a4a;padding:.8rem 1rem;border-radius:10px;font-size:.9rem;text-align:center}
.form-success.show{display:block}
.contact-info{display:flex;flex-direction:column;gap:1.3rem}
.info-block h3{color:var(--azul);font-size:1.05rem;margin-bottom:.3rem}
.info-block p{color:var(--texto-suave);font-size:.92rem}
.info-social{display:flex;gap:.7rem;margin-top:.4rem}
.info-social a{width:42px;height:42px;border-radius:50%;display:grid;place-items:center;background:var(--azul);color:#fff;font-family:'Montserrat',sans-serif;font-weight:700;font-size:.85rem;transition:var(--trans)}
.info-social a:hover{background:var(--celeste);transform:translateY(-3px)}
.map{border-radius:var(--radio);overflow:hidden;box-shadow:var(--sombra-sm)}
.map iframe{display:block}

/* ---------- Footer ---------- */
.footer{background:var(--azul-oscuro);color:#cfdcec;padding:3.5rem 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1.2fr .8fr;gap:2rem;padding-bottom:2.5rem}
.footer-brand img{height:80px;width:auto;margin-bottom:1rem}
.footer-tag{font-family:'Montserrat',sans-serif;font-weight:600;color:#fff;line-height:1.5}
.footer h4{color:#fff;font-size:1rem;margin-bottom:1rem}
.footer-col p{font-size:.88rem;margin-bottom:.5rem;color:#aebfd2}
.footer-social{display:flex;gap:.6rem}
.footer-social a{width:40px;height:40px;border-radius:50%;display:grid;place-items:center;background:rgba(255,255,255,.1);color:#fff;font-weight:700;font-size:.85rem;transition:var(--trans)}
.footer-social a:hover{background:var(--celeste)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:1.2rem 0;text-align:center}
.footer-bottom p{font-size:.82rem;color:#9fb2c8}

/* ---------- Botones flotantes ---------- */
.float-wa{position:fixed;bottom:24px;right:24px;width:58px;height:58px;border-radius:50%;background:#25D366;display:grid;place-items:center;box-shadow:0 8px 24px rgba(37,211,102,.45);z-index:900;transition:var(--trans)}
.float-wa:hover{transform:scale(1.1)}
.float-top{position:fixed;bottom:24px;left:24px;width:48px;height:48px;border-radius:50%;border:none;background:var(--azul);color:#fff;font-size:1.3rem;cursor:pointer;box-shadow:var(--sombra-sm);opacity:0;visibility:hidden;transform:translateY(12px);transition:var(--trans);z-index:900}
.float-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.float-top:hover{background:var(--azul-oscuro)}

/* ---------- Animaciones reveal ---------- */
.reveal{opacity:0;transform:translateY(34px);transition:opacity .7s ease,transform .7s ease}
.reveal.visible{opacity:1;transform:none}

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media(max-width:992px){
  .cards-4{grid-template-columns:repeat(2,1fr)}
  .cards-3{grid-template-columns:repeat(2,1fr)}
  .gallery{grid-template-columns:repeat(3,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:768px){
  .nav{position:fixed;top:74px;right:-100%;width:78%;max-width:320px;height:calc(100vh - 74px);
    background:#fff;box-shadow:-8px 0 30px rgba(8,52,90,.12);transition:right .4s ease;padding:1.5rem}
  .nav.open{right:0}
  .nav-list{flex-direction:column;align-items:flex-start;gap:.4rem}
  .nav-link{display:block;width:100%;padding:.8rem 0;border-bottom:1px solid #eef2f7}
  .nav-cta{margin-top:.6rem}
  .nav-toggle{display:flex}
  .two-col,.two-col.reverse{grid-template-columns:1fr}
  .two-col.reverse .two-col-img{order:0}
  .mv-grid{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  .section{padding:3.8rem 0}
}
@media(max-width:560px){
  .cards-4,.cards-3{grid-template-columns:1fr}
  .gallery{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr;text-align:center}
  .footer-brand img{margin-inline:auto}
  .footer-social,.info-social{justify-content:center}
  .slide{padding:2rem 1.4rem}
  .partners-logos{gap:1.6rem}
  .hero-logo{height:74px}
}