:root {
  --primary: #1f4e79;
  --primary-2: #3a7ca5;
  --accent: #79c2d0;
  --soft: #f3f5f7;
  --pearl: #fafafa;
  --white: #ffffff;
  --text: #1c2b33;
  --muted: #61707a;
  --line: rgba(31, 78, 121, .14);
  --shadow: 0 24px 70px rgba(31, 78, 121, .13);
  --radius: 28px;
  --container: 1160px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: 'Montserrat', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--text);
  background: var(--pearl);
  line-height: 1.6;
}
body.menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }
button, input, textarea { font: inherit; }

.skip-link {
  position: absolute;
  left: -999px;
  top: 1rem;
  background: var(--primary);
  color: white;
  padding: .75rem 1rem;
  border-radius: 999px;
  z-index: 9999;
}
.skip-link:focus { left: 1rem; }
.container { width: min(100% - 2rem, var(--container)); margin-inline: auto; }
.section-pad { padding: 6rem 0; }

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 1000;
  padding: 1rem;
  transition: .25s ease;
}
.site-header.scrolled { background: rgba(250, 250, 250, .86); backdrop-filter: blur(18px); box-shadow: 0 10px 40px rgba(31, 78, 121, .08); }
.navbar {
  width: min(100%, var(--container));
  margin: 0 auto;
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: .6rem .75rem .6rem 1rem;
  border: 1px solid rgba(255,255,255,.65);
  border-radius: 999px;
  background: rgba(255,255,255,.78);
  backdrop-filter: blur(18px);
  box-shadow: 0 20px 60px rgba(31, 78, 121, .08);
}
.brand { display: inline-flex; align-items: center; gap: .75rem; font-weight: 800; }
.brand-mark { width: 46px; height: 46px; display: grid; place-items: center; border-radius: 50%; background: linear-gradient(135deg, var(--primary), var(--primary-2)); box-shadow: 0 10px 25px rgba(31, 78, 121, .24); }
.brand-mark svg { width: 30px; height: 30px; fill: none; stroke: white; stroke-width: 3; stroke-linecap: round; stroke-linejoin: round; }
.brand strong { display:block; font-size: 1.05rem; line-height: 1; }
.brand small { display:block; color: var(--muted); font-size: .74rem; letter-spacing: .08em; text-transform: uppercase; margin-top: .2rem; }
.nav-menu { display: flex; align-items: center; gap: 1.1rem; font-weight: 700; font-size: .9rem; }
.nav-menu a:not(.nav-cta) { color: #3b4b55; }
.nav-menu a:hover { color: var(--primary); }
.nav-cta { padding: .85rem 1.1rem; border-radius: 999px; color: white; background: var(--primary); box-shadow: 0 12px 28px rgba(31, 78, 121, .24); }
.menu-toggle { display: none; width: 48px; height: 48px; border: 0; border-radius: 50%; background: var(--primary); cursor: pointer; padding: 13px; }
.menu-toggle span { display:block; height: 2px; background: white; margin: 5px 0; border-radius: 999px; transition: .25s; }
.menu-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle.active span:nth-child(2) { opacity: 0; }
.menu-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.hero { position: relative; min-height: 100vh; display: flex; align-items: center; overflow: hidden; padding-top: 9rem; }
.hero-bg { position: absolute; inset: 0; background: radial-gradient(circle at 12% 18%, rgba(121,194,208,.34), transparent 32%), radial-gradient(circle at 85% 25%, rgba(58,124,165,.18), transparent 34%), linear-gradient(135deg, #ffffff 0%, #f4f8fb 48%, #e7f2f6 100%); z-index: -2; }
.hero::after { content:""; position:absolute; right:-18vw; bottom:-24vw; width: 55vw; height: 55vw; background: rgba(31,78,121,.06); border-radius: 50%; z-index:-1; }
.hero-grid { display: grid; grid-template-columns: 1.02fr .98fr; align-items: center; gap: 4rem; }
.eyebrow { display: inline-flex; color: var(--primary-2); font-size: .78rem; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; margin-bottom: 1rem; }
.eyebrow.light { color: rgba(255,255,255,.75); }
h1, h2 { font-family: 'Playfair Display', Georgia, serif; line-height: 1.05; margin: 0 0 1rem; color: #122d44; }
h1 { font-size: clamp(3rem, 8vw, 6.8rem); letter-spacing: -.04em; }
h2 { font-size: clamp(2.1rem, 4vw, 4rem); letter-spacing: -.03em; }
h3 { margin: 0 0 .6rem; font-size: 1.15rem; }
p { margin: 0; color: var(--muted); }
.hero-content > p { font-size: 1.12rem; max-width: 650px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: .9rem; margin: 2rem 0; }
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 52px; padding: .9rem 1.25rem; border-radius: 999px; border: 0; cursor: pointer; font-weight: 800; transition: .25s ease; }
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: linear-gradient(135deg, var(--primary), var(--primary-2)); color: white; box-shadow: 0 16px 34px rgba(31,78,121,.24); }
.btn-ghost { border: 1px solid var(--line); background: rgba(255,255,255,.72); color: var(--primary); }
.btn-whatsapp { background: #25d366; color: white; box-shadow: 0 18px 35px rgba(37,211,102,.26); }
.trust-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: .9rem; max-width: 640px; }
.trust-row div { padding: 1rem; border-radius: 20px; background: rgba(255,255,255,.72); border: 1px solid rgba(255,255,255,.8); }
.trust-row strong { display:block; color: var(--primary); font-size: 1.25rem; }
.trust-row span { display:block; color: var(--muted); font-size: .8rem; }
.hero-card { position: relative; }
.image-frame { min-height: 420px; border-radius: var(--radius); box-shadow: var(--shadow); background-size: cover; background-position: center; overflow: hidden; }
.hero-photo { min-height: 620px; background-image: linear-gradient(180deg, rgba(31,78,121,.05), rgba(31,78,121,.34)), url('https://images.unsplash.com/photo-1629909613654-28e377c37b09?auto=format&fit=crop&w=1200&q=80'); }
.team-photo { background-image: linear-gradient(180deg, rgba(31,78,121,.02), rgba(31,78,121,.16)), url('https://images.unsplash.com/photo-1606811971618-4486d14f3f99?auto=format&fit=crop&w=1200&q=80'); }
.appointment-card { position: absolute; left: -28px; bottom: 34px; width: min(310px, 86%); padding: 1.3rem; border-radius: 24px; background: rgba(255,255,255,.88); backdrop-filter: blur(14px); box-shadow: 0 20px 55px rgba(31,78,121,.16); border: 1px solid rgba(255,255,255,.9); }
.appointment-card span { color: var(--primary-2); font-weight: 800; font-size: .78rem; text-transform: uppercase; letter-spacing: .1em; }
.appointment-card strong { display:block; font-size: 1.25rem; color: var(--text); }
.appointment-card small { color: var(--muted); }

.section-head { max-width: 720px; margin: 0 auto 3rem; text-align: center; }
.cards-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.1rem; }
.service-card, .testimonial, .result-card, .contact-form, .tech-item { background: white; border: 1px solid var(--line); border-radius: 26px; padding: 1.5rem; box-shadow: 0 16px 45px rgba(31,78,121,.07); transition: .25s ease; }
.service-card:hover, .testimonial:hover { transform: translateY(-7px); box-shadow: 0 24px 65px rgba(31,78,121,.12); }
.service-card span { display: grid; place-items: center; width: 54px; height: 54px; border-radius: 18px; margin-bottom: 1rem; background: var(--soft); font-size: 1.5rem; }
.split-section { background: var(--white); }
.split-grid, .tech-grid, .contact-grid { display: grid; grid-template-columns: .95fr 1.05fr; gap: 4rem; align-items: center; }
.check-list { margin: 1.5rem 0; padding: 0; list-style: none; display: grid; gap: .8rem; }
.check-list li { position: relative; padding-left: 2rem; font-weight: 700; }
.check-list li::before { content: "✓"; position: absolute; left: 0; color: var(--primary-2); font-weight: 900; }
.text-link { color: var(--primary); font-weight: 800; }
.tech { background: linear-gradient(135deg, #eef7fa, #ffffff); }
.tech-list { display: grid; gap: 1rem; }
.tech-item { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.tech-item strong { color: var(--primary-2); font-size: 1.4rem; }
.tech-item span { color: #20333f; font-weight: 800; }
.results-grid, .testimonial-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.1rem; }
.result-card { text-align: center; }
.result-card span { display:block; font-size: 2.5rem; font-weight: 900; color: var(--primary); margin-bottom: .4rem; }
.stars { color: #f2b84b; letter-spacing: .08em; margin-bottom: 1rem; }
.testimonial strong { display:block; margin-top: 1rem; color: var(--primary); }
.cta-band { background: var(--white); }
.cta-box { display: flex; justify-content: space-between; align-items: center; gap: 2rem; padding: clamp(2rem, 5vw, 4rem); border-radius: 38px; background: linear-gradient(135deg, var(--primary), #143a5d); color: white; box-shadow: 0 30px 80px rgba(31,78,121,.22); }
.cta-box h2 { color: white; }
.cta-box p { color: rgba(255,255,255,.76); }
.contact { background: var(--soft); }
.info-list { margin-top: 1.5rem; display: grid; gap: .8rem; }
.info-list p { color: var(--text); }
.contact-form { display: grid; gap: .7rem; }
.contact-form label { font-weight: 800; color: var(--primary); }
.contact-form input, .contact-form textarea { width: 100%; border: 1px solid var(--line); border-radius: 16px; padding: .95rem 1rem; background: #fbfdfe; outline: none; }
.contact-form input:focus, .contact-form textarea:focus { border-color: var(--primary-2); box-shadow: 0 0 0 4px rgba(58,124,165,.12); }
.contact-form small { color: var(--muted); }
.footer { padding: 2rem 0; background: #0f2538; color: white; }
.footer-content { display: flex; justify-content: space-between; align-items: center; gap: 1rem; }
.footer p, .footer small { color: rgba(255,255,255,.72); }
.footer .brand strong { color: white; }
.floating-whatsapp { position: fixed; right: 1.2rem; bottom: 1.2rem; z-index: 999; display: grid; place-items: center; width: 62px; height: 62px; border-radius: 50%; background: #25d366; box-shadow: 0 16px 35px rgba(37,211,102,.35); transition: .25s ease; }
.floating-whatsapp:hover { transform: translateY(-4px) scale(1.03); }
.floating-whatsapp svg { width: 34px; fill: white; }
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.reveal.visible { opacity: 1; transform: none; }

@media (max-width: 980px) {
  .site-header { padding: .75rem; }
  .navbar { border-radius: 28px; min-height: 66px; }
  .menu-toggle { display: block; position: relative; z-index: 1002; }
  .nav-menu {
    position: fixed;
    inset: .75rem;
    min-height: calc(100dvh - 1.5rem);
    z-index: 1001;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    justify-content: center;
    gap: .65rem;
    padding: 6rem 1.2rem 2rem;
    border-radius: 30px;
    background: rgba(15, 37, 56, .97);
    backdrop-filter: blur(20px);
    transform: translateY(-105%);
    opacity: 0;
    pointer-events: none;
    transition: .28s ease;
  }
  .nav-menu.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
  .nav-menu a { color: white !important; padding: 1rem; border-radius: 18px; text-align: center; background: rgba(255,255,255,.08); }
  .nav-menu .nav-cta { background: #25d366; box-shadow: none; }
  .hero-grid, .split-grid, .tech-grid, .contact-grid { grid-template-columns: 1fr; gap: 2.2rem; }
  .hero { padding-top: 8rem; }
  .hero-card { max-width: 620px; margin-inline: auto; width: 100%; }
  .hero-photo { min-height: 520px; }
  .cards-grid, .results-grid, .testimonial-grid { grid-template-columns: repeat(2, 1fr); }
  .cta-box { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 640px) {
  .container { width: min(100% - 1.2rem, var(--container)); }
  .section-pad { padding: 4.2rem 0; }
  .brand strong { font-size: .95rem; }
  .brand small { font-size: .65rem; }
  .brand-mark { width: 42px; height: 42px; }
  h1 { font-size: clamp(2.7rem, 16vw, 4.2rem); }
  .hero-content > p { font-size: 1rem; }
  .hero-actions, .trust-row { grid-template-columns: 1fr; display: grid; }
  .btn { width: 100%; }
  .hero-photo { min-height: 430px; }
  .appointment-card { left: .8rem; right: .8rem; bottom: 1rem; width: auto; }
  .cards-grid, .results-grid, .testimonial-grid { grid-template-columns: 1fr; }
  .image-frame { min-height: 360px; border-radius: 24px; }
  .cta-box { border-radius: 28px; }
  .footer-content { flex-direction: column; align-items: flex-start; }
  .floating-whatsapp { width: 56px; height: 56px; right: .9rem; bottom: .9rem; }
}

/* Nuevas secciones inspiradas en clínicas odontológicas premium */
.process { background: linear-gradient(180deg, var(--white), #eef7fa); }
.process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }
.process-card, .faq-item { background: var(--white); border: 1px solid var(--line); border-radius: 26px; padding: 1.4rem; box-shadow: 0 16px 45px rgba(31,78,121,.07); }
.process-card strong { display: inline-grid; place-items: center; width: 48px; height: 48px; border-radius: 16px; margin-bottom: 1rem; color: var(--primary); background: #e8f4f8; font-weight: 900; }
.why-us { background: var(--white); }
.office-photo { background-image: linear-gradient(180deg, rgba(31,78,121,.03), rgba(31,78,121,.18)), url('https://images.unsplash.com/photo-1609840114035-3c981b782dfe?auto=format&fit=crop&w=1200&q=80'); }
.feature-list { margin: 1.5rem 0 0; padding: 0; list-style: none; display: grid; gap: 1rem; }
.feature-list li { padding: 1rem; border: 1px solid var(--line); border-radius: 20px; background: #fbfdfe; }
.feature-list strong { display: block; color: var(--primary); margin-bottom: .2rem; }
.feature-list span { display: block; color: var(--muted); }
.faq { background: var(--soft); }
.faq-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 3rem; align-items: start; }
.faq-list { display: grid; gap: 1rem; }
.faq-item { padding: 0; overflow: hidden; }
.faq-item summary { cursor: pointer; padding: 1.2rem 1.4rem; font-weight: 800; color: var(--primary); list-style: none; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: '+'; float: right; font-size: 1.2rem; }
.faq-item[open] summary::after { content: '–'; }
.faq-item p { padding: 0 1.4rem 1.3rem; }

@media (max-width: 980px) {
  .process-grid { grid-template-columns: repeat(2, 1fr); }
  .faq-grid { grid-template-columns: 1fr; gap: 2rem; }
}
@media (max-width: 640px) {
  .process-grid { grid-template-columns: 1fr; }
}