/* ============================================================
   Unidad Médica del Centro — Design System
   Palette: deep clinical navy + warm sand + a single vital-sign teal
   Type: Fraunces (display, warm serif) / Inter (body) / IBM Plex Mono (data/labels)
   Signature element: the heartbeat / vital-sign line, echoing the
   clinic's own logomark, used as a recurring structural device.
   ============================================================ */

:root{
  --navy-900:#11193F;
  --navy-800:#1B2A6B;
  --navy-700:#283a8c;
  --teal-600:#1F8A78;
  --teal-500:#2D9C8A;
  --sand-100:#F7F4EE;
  --sand-50:#FCFBF8;
  --white:#FFFFFF;
  --ink-900:#1C1C28;
  --ink-600:#4B4F62;
  --ink-400:#7A7E91;
  --line:#E4E0D6;
  --shadow: 0 18px 40px -22px rgba(17,25,63,0.35);

  --font-display:'Fraunces', Georgia, serif;
  --font-body:'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono:'IBM Plex Mono', monospace;

  --container: 1180px;
  --radius: 14px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
html, body{margin:0;padding:0;}
body{
  font-family:var(--font-body);
  color:var(--ink-900);
  background:var(--sand-50);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
ul{margin:0;padding:0;}
button{font-family:inherit;}

.wrap{
  max-width:var(--container);
  margin:0 auto;
  padding:0 28px;
}

/* Focus visibility */
a:focus-visible, button:focus-visible, .nav-link:focus-visible{
  outline:3px solid var(--teal-500);
  outline-offset:3px;
  border-radius:4px;
}

/* ============ Topbar ============ */
.topbar{
  background:var(--navy-900);
  color:#cdd3e8;
  font-family:var(--font-mono);
  font-size:0.78rem;
  letter-spacing:0.01em;
}
.topbar .wrap{
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:9px 28px;
  gap:18px;
  flex-wrap:wrap;
}
.topbar-info{display:flex;gap:22px;flex-wrap:wrap;align-items:center;}
.topbar-info a, .topbar-info > span{display:inline-flex;align-items:center;gap:6px;color:#cdd3e8;white-space:nowrap;}
.topbar-info a:hover{color:var(--teal-500);}
.topbar-info svg{width:15px;height:15px;flex-shrink:0;stroke:currentColor;fill:none;stroke-width:1.8;}
.topbar-social{display:flex;gap:10px;}
.topbar-social a{
  width:26px;height:26px;border-radius:50%;
  background:rgba(255,255,255,0.08);
  display:flex;align-items:center;justify-content:center;
  transition:background .2s;
}
.topbar-social a:hover{background:var(--teal-500);}
.topbar-social svg{width:13px;height:13px;}

/* ============ Header / Nav ============ */
.site-header{
  background:var(--white);
  border-bottom:1px solid var(--line);
  position:sticky;top:0;z-index:50;
}
.site-header .wrap{
  display:flex;align-items:center;justify-content:space-between;
  padding:16px 28px;
  gap:24px;
}
.logo{display:flex;align-items:center;gap:10px;}
.logo svg{width:38px;height:38px;flex-shrink:0;}
.logo-img{height:48px;width:auto;display:block;}
@media (max-width:600px){.logo-img{height:40px;}}
.logo-text{font-family:var(--font-display);line-height:1.05;}
.logo-text .top{display:block;font-size:1.28rem;font-weight:700;color:var(--navy-800);}
.logo-text .bottom{display:block;font-size:0.74rem;color:var(--ink-600);letter-spacing:0.04em;}

.main-nav{display:flex;align-items:center;gap:4px;}
.nav-link{
  font-size:0.93rem;font-weight:600;color:var(--navy-900);
  padding:10px 14px;border-radius:8px;position:relative;
  white-space:nowrap;
}
.nav-link:hover, .nav-link.active{color:var(--teal-600);}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;
  background:var(--teal-500);border-radius:2px;
}
.has-dropdown{position:relative;}
.has-dropdown > .nav-link{display:flex;align-items:center;gap:5px;}
.caret{width:9px;height:9px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:rotate(45deg);margin-top:-3px;}
.dropdown{
  position:absolute;top:calc(100% + 8px);left:0;
  background:var(--white);border:1px solid var(--line);
  border-radius:10px;box-shadow:var(--shadow);
  min-width:230px;padding:8px;
  opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:all .18s ease;
  z-index:60;
}
.has-dropdown:hover .dropdown,
.has-dropdown:focus-within .dropdown{
  opacity:1;visibility:visible;transform:translateY(0);
}
.dropdown a{
  display:block;padding:9px 12px;border-radius:7px;font-size:0.9rem;font-weight:500;color:var(--ink-900);
}
.dropdown a:hover{background:var(--sand-100);color:var(--teal-600);}

.nav-toggle{display:none;background:none;border:none;cursor:pointer;padding:6px;}
.nav-toggle span{display:block;width:24px;height:2px;background:var(--navy-900);margin:5px 0;border-radius:2px;}

/* ============ Hero ============ */
.hero{
  background:linear-gradient(160deg, var(--navy-900) 0%, var(--navy-800) 55%, var(--navy-700) 100%);
  color:var(--white);
  position:relative;
  overflow:hidden;
  padding:84px 0 96px;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(circle at 85% 18%, rgba(45,156,138,0.18), transparent 55%);
  pointer-events:none;
}
.hero .wrap{position:relative;z-index:2;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:0.78rem;letter-spacing:0.06em;
  color:#cfe8e2;background:rgba(45,156,138,0.16);
  border:1px solid rgba(45,156,138,0.4);
  padding:7px 14px;border-radius:30px;margin-bottom:26px;
}
.hero h1{
  font-family:var(--font-display);
  font-size:clamp(2.6rem, 5.4vw, 4.4rem);
  font-weight:600;
  line-height:1.04;
  margin:0 0 22px;
  max-width:780px;
  letter-spacing:-0.01em;
}
.hero .lede{
  font-size:1.15rem;color:#cdd3e8;max-width:540px;margin:0 0 36px;
}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:54px;}

/* heartbeat line — signature element */
.pulse-line{width:100%;max-width:620px;display:block;opacity:0.85;}
.pulse-line path{
  stroke:var(--teal-500);stroke-width:2.4;fill:none;
  stroke-linecap:round;stroke-linejoin:round;
}

/* ============ Buttons ============ */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  font-weight:700;font-size:0.94rem;
  padding:13px 24px;border-radius:9px;
  transition:transform .15s, box-shadow .15s, background .15s;
  border:1.5px solid transparent;
}
.btn-primary{background:var(--teal-500);color:var(--white);}
.btn-primary:hover{background:var(--teal-600);transform:translateY(-2px);box-shadow:0 12px 24px -10px rgba(45,156,138,0.55);}
.btn-ghost{background:transparent;color:var(--white);border-color:rgba(255,255,255,0.4);}
.btn-ghost:hover{border-color:var(--white);background:rgba(255,255,255,0.08);}
.btn-dark{background:var(--navy-800);color:var(--white);}
.btn-dark:hover{background:var(--navy-900);transform:translateY(-2px);}

/* ============ Section basics ============ */
.section{padding:84px 0;}
.section-tight{padding:56px 0;}
.section-alt{background:var(--sand-100);}
.section-head{max-width:660px;margin:0 0 48px;}
.section-head.center{margin-inline:auto;text-align:center;}
.kicker{
  font-family:var(--font-mono);font-size:0.78rem;letter-spacing:0.07em;
  color:var(--teal-600);text-transform:uppercase;display:block;margin-bottom:12px;
}
.section-head h2{
  font-family:var(--font-display);font-size:clamp(1.9rem,3.4vw,2.6rem);
  color:var(--navy-900);margin:0 0 14px;line-height:1.12;font-weight:600;
}
.section-head p{color:var(--ink-600);font-size:1.05rem;margin:0;}

/* ============ Services grid ============ */
.grid-services{
  display:grid;grid-template-columns:repeat(3,1fr);gap:26px;
}
.service-card{
  background:var(--white);border:1px solid var(--line);
  border-radius:var(--radius);padding:32px 26px;
  text-align:center;transition:transform .2s, box-shadow .2s, border-color .2s;
}
.service-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:transparent;}
.icon-circle{
  width:64px;height:64px;border-radius:50%;
  background:var(--navy-800);
  display:flex;align-items:center;justify-content:center;
  margin:0 auto 18px;
}
.icon-circle svg{width:30px;height:30px;stroke:var(--white);fill:none;stroke-width:1.6;}
.service-card h3{font-family:var(--font-display);font-size:1.18rem;color:var(--navy-900);margin:0 0 10px;font-weight:600;}
.service-card p{color:var(--ink-600);font-size:0.93rem;margin:0;}
.service-card a.card-link{display:block;}

/* ============ Two-col layout ============ */
.two-col{display:grid;grid-template-columns:1.1fr 0.9fr;gap:56px;align-items:start;}

/* ============ Mission / Vision ============ */
.mv-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:28px;}
.mv-card{
  background:var(--white);border-left:3px solid var(--teal-500);
  border-radius:0 10px 10px 0;padding:22px 24px;
}
.mv-card h4{font-family:var(--font-mono);font-size:0.78rem;letter-spacing:0.06em;text-transform:uppercase;color:var(--teal-600);margin:0 0 8px;}
.mv-card p{margin:0;color:var(--ink-900);font-size:0.97rem;}

/* ============ List styles ============ */
.check-list{list-style:none;display:grid;grid-template-columns:1fr 1fr;gap:10px 28px;margin-top:18px;}
.check-list li{display:flex;gap:10px;align-items:flex-start;font-size:0.97rem;color:var(--ink-900);}
.check-list li::before{
  content:"";flex-shrink:0;width:18px;height:18px;margin-top:3px;border-radius:50%;
  background:var(--teal-500);
  -webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='%23fff' d='M9 16.2l-3.5-3.5L4 14.2 9 19.2 20 8.2l-1.5-1.5z'/%3E%3C/svg%3E") center/12px no-repeat;
  mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='%23fff' d='M9 16.2l-3.5-3.5L4 14.2 9 19.2 20 8.2l-1.5-1.5z'/%3E%3C/svg%3E") center/12px no-repeat;
}
.bullet-list{list-style:none;margin-top:14px;}
.bullet-list li{padding-left:20px;position:relative;margin-bottom:10px;font-size:0.97rem;}
.bullet-list li::before{
  content:"";position:absolute;left:0;top:10px;width:6px;height:6px;border-radius:50%;background:var(--teal-500);
}
.numbered-list{list-style:none;counter-reset:n;margin-top:18px;display:flex;flex-direction:column;gap:20px;}
.numbered-list > li{counter-increment:n;position:relative;padding-left:46px;}
.numbered-list > li::before{
  content:counter(n);position:absolute;left:0;top:-2px;
  width:32px;height:32px;border-radius:50%;background:var(--navy-800);color:var(--white);
  font-family:var(--font-mono);font-size:0.85rem;display:flex;align-items:center;justify-content:center;
}
.numbered-list h4{margin:0 0 4px;font-size:1.02rem;color:var(--navy-900);font-family:var(--font-body);font-weight:700;}
.numbered-list p{margin:0;color:var(--ink-600);font-size:0.94rem;}
.numbered-list ul{list-style:none;margin-top:8px;display:flex;flex-direction:column;gap:6px;}
.numbered-list ul li{padding-left:16px;position:relative;font-size:0.93rem;color:var(--ink-900);}
.numbered-list ul li::before{content:"–";position:absolute;left:0;color:var(--teal-600);}

/* ============ Contact / Citas ============ */
.contact-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:36px;}
.contact-card{text-align:center;}
.contact-card .icon-circle{background:var(--white);border:1.6px solid var(--teal-500);}
.contact-card .icon-circle svg{stroke:var(--teal-600);}
.contact-card h4{font-family:var(--font-display);font-size:1.05rem;margin:14px 0 6px;color:var(--navy-900);}
.contact-card p{margin:0;color:var(--ink-600);font-size:0.95rem;}
.map-frame{
  margin-top:48px;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);
  height:340px;
}
.map-frame iframe{width:100%;height:100%;border:0;display:block;}

/* ============ Sub-page (Servicios detail) layout ============ */
.subpage-hero{
  background:var(--navy-900);color:var(--white);padding:46px 0 56px;position:relative;overflow:hidden;
}
.subpage-hero::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(circle at 90% 10%, rgba(45,156,138,0.2), transparent 50%);
}
.breadcrumb{
  font-family:var(--font-mono);font-size:0.78rem;color:#aab2cf;margin-bottom:18px;position:relative;z-index:2;
}
.breadcrumb a{color:#aab2cf;}
.breadcrumb a:hover{color:var(--teal-500);}
.subpage-hero .icon-circle{background:var(--teal-500);width:56px;height:56px;margin:0 0 18px;}
.subpage-hero .icon-circle svg{width:26px;height:26px;}
.subpage-hero h1{font-family:var(--font-display);font-size:clamp(2rem,4vw,2.7rem);margin:0 0 8px;position:relative;z-index:2;font-weight:600;}
.subpage-hero .tagline{font-size:1.1rem;color:var(--teal-500);font-family:var(--font-display);font-style:italic;position:relative;z-index:2;}

.service-layout{display:grid;grid-template-columns:250px 1fr;gap:48px;align-items:start;}
.service-sidebar{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
  padding:10px;position:sticky;top:96px;
}
.service-sidebar a{
  display:block;padding:11px 14px;border-radius:8px;font-size:0.92rem;font-weight:600;color:var(--ink-900);
  margin-bottom:2px;
}
.service-sidebar a:hover{background:var(--sand-100);color:var(--teal-600);}
.service-sidebar a.active{background:var(--navy-800);color:var(--white);}

.content-block{margin-bottom:34px;}
.content-block h2{font-family:var(--font-display);font-size:1.5rem;color:var(--navy-900);margin:0 0 14px;font-weight:600;}
.content-block h3{font-family:var(--font-mono);font-size:0.8rem;letter-spacing:0.06em;text-transform:uppercase;color:var(--teal-600);margin:0 0 12px;}
.content-block p{color:var(--ink-900);font-size:0.99rem;margin:0 0 14px;}

.commitment-box{
  background:var(--sand-100);border-radius:var(--radius);padding:28px 30px;margin-top:8px;
  border-left:4px solid var(--teal-500);
}

/* ============ Placeholder / coming soon ============ */
.placeholder-box{
  text-align:center;padding:64px 30px;background:var(--sand-100);border-radius:var(--radius);
  border:1.5px dashed var(--line);
}
.placeholder-box svg{width:48px;height:48px;stroke:var(--teal-600);margin:0 auto 18px;fill:none;stroke-width:1.5;}
.placeholder-box h2{font-family:var(--font-display);color:var(--navy-900);margin:0 0 10px;}
.placeholder-box p{color:var(--ink-600);max-width:440px;margin:0 auto;}

/* ============ Footer ============ */
.site-footer{background:var(--navy-900);color:#c4cae1;margin-top:0;}
.footer-top{padding:64px 0 40px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;}
.footer-grid h4{font-family:var(--font-mono);font-size:0.78rem;letter-spacing:0.06em;text-transform:uppercase;color:var(--teal-500);margin:0 0 16px;}
.footer-grid p, .footer-grid a{color:#aab2cf;font-size:0.92rem;}
.footer-grid ul{list-style:none;display:flex;flex-direction:column;gap:9px;}
.footer-grid a:hover{color:var(--white);}
.footer-logo{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-logo svg{width:32px;height:32px;}
.footer-logo span{font-family:var(--font-display);font-size:1.1rem;color:var(--white);font-weight:600;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,0.1);padding:20px 0;
  display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;
}
.footer-bottom small{color:#8b92b3;font-size:0.85rem;}
.footer-social{display:flex;gap:10px;}
.footer-social a{
  width:32px;height:32px;border-radius:50%;background:rgba(255,255,255,0.08);
  display:flex;align-items:center;justify-content:center;transition:background .2s;
}
.footer-social a:hover{background:var(--teal-500);}
.footer-social svg{width:15px;height:15px;}
.back-to-top{
  position:fixed;right:24px;bottom:84px;width:46px;height:46px;border-radius:50%;
  background:var(--teal-500);color:var(--white);display:flex;align-items:center;justify-content:center;
  box-shadow:var(--shadow);opacity:0;visibility:hidden;transition:opacity .2s, visibility .2s;z-index:80;border:none;cursor:pointer;
}
.back-to-top.show{opacity:1;visibility:visible;}
.back-to-top svg{width:18px;height:18px;}

/* ============ Floating WhatsApp button ============ */
.wa-float{
  position:fixed;right:24px;bottom:24px;width:54px;height:54px;border-radius:50%;
  background:#25D366;color:var(--white);display:flex;align-items:center;justify-content:center;
  box-shadow:0 10px 26px -8px rgba(37,211,102,0.6);z-index:80;
  transition:transform .15s, box-shadow .15s;
}
.wa-float:hover{transform:translateY(-2px) scale(1.04);box-shadow:0 14px 30px -8px rgba(37,211,102,0.7);}
.wa-float svg{width:30px;height:30px;}
@media (max-width:600px){
  .wa-float{width:50px;height:50px;}
  .wa-float svg{width:27px;height:27px;}
}

/* ============ Responsive ============ */
@media (max-width:980px){
  .main-nav{position:fixed;top:0;right:-100%;height:100vh;width:78%;max-width:320px;
    background:var(--white);flex-direction:column;align-items:flex-start;padding:90px 24px 24px;
    transition:right .25s ease;overflow-y:auto;box-shadow:-10px 0 30px rgba(0,0,0,0.15);}
  .main-nav.open{right:0;}
  .nav-link{width:100%;padding:13px 14px;}
  .has-dropdown{width:100%;}
  .dropdown{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;border:none;display:none;width:100%;margin-left:8px;}
  .has-dropdown.open .dropdown{display:block;}
  .nav-toggle{display:block;}
  .grid-services{grid-template-columns:1fr 1fr;}
  .two-col{grid-template-columns:1fr;}
  .mv-grid, .check-list, .contact-grid{grid-template-columns:1fr;}
  .service-layout{grid-template-columns:1fr;}
  .service-sidebar{position:static;}
  .footer-grid{grid-template-columns:1fr;}
}
@media (max-width:600px){
  .grid-services{grid-template-columns:1fr;}
  .hero{padding:56px 0 64px;}
  .section{padding:56px 0;}
}

/* ============ Reduced motion ============ */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:0.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:0.01ms !important;
    scroll-behavior:auto !important;
  }
}