/* Saniet Spa - estilos limpios y modernos */
:root{
  --bg:#f6f7f8;
  --fg:#0f1b17;
  --primary:#6a8f84; /* verde agua del logo */
  --primary-700:#4e6f66;
  --muted:#8a8f94;
  --card:#ffffff;
  --alt:#eef2ef;
  --radius:18px;
  --shadow:0 10px 30px rgba(0,0,0,.08);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{font-family:system-ui,-apple-system,Segoe UI,Roboto,Inter,Arial,sans-serif;color:var(--fg);background:var(--bg);line-height:1.6}
img{max-width:100%;height:auto;display:block;border-radius:var(--radius)}
.container{max-width:1120px;margin:auto;padding:0 20px}
.section{padding:64px 0}
.section.alt{background:var(--alt)}
h1,h2,h3{line-height:1.2;margin:.2em 0 .4em}
h1{font-size:clamp(2rem,4vw,3.4rem)}
h2{font-size:clamp(1.6rem,3vw,2.2rem)}
h3{font-size:1.25rem}
.lead{color:var(--muted)}

.topnav{display:flex;gap:18px;align-items:center;justify-content:center;padding:14px 0;position:sticky;top:0;background:rgba(246,247,248,.8);backdrop-filter:saturate(180%) blur(8px);z-index:9}
.topnav a{text-decoration:none;color:var(--fg);font-weight:600;padding:8px 10px;border-radius:10px}
.topnav a:hover{background:var(--card);box-shadow:var(--shadow)}

/* hero */
.hero{position:relative;height:min(78vh,780px);display:grid;place-items:center;overflow:hidden;background:#000}
.hero-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;filter:brightness(.7)}
.overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,.15),rgba(0,0,0,.55))}
.hero-content{position:relative;color:#fff;text-align:center}
.brand-mark{width:84px;height:auto;margin:0 auto 10px;border-radius:14px;box-shadow:var(--shadow)}
.subtitle{opacity:.9}
.cta-row{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-top:12px}
.btn{display:inline-block;padding:12px 18px;border-radius:999px;text-decoration:none;cursor:pointer;font-weight:700;border:2px solid transparent;transition:.2s}
.btn.primary{background:var(--primary);color:#fff}
.btn.primary:hover{background:var(--primary-700)}
.btn.outline{border-color:#fff;color:#fff}
.btn.outline:hover{background:rgba(255,255,255,.12)}

/* cards */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:26px}
.card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;display:flex;flex-direction:column}
.card-body{padding:16px}

/* gallery */
.grid-gallery{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.grid-gallery img{border-radius:16px}

/* rehab */
.flex{display:grid;grid-template-columns:1.1fr .9fr;gap:24px;align-items:center}
.rounded{border-radius:16px}
.bullets{list-style: none;padding-left:0}
.bullets li{padding-left:22px;position:relative;margin:6px 0}
.bullets li::before{content:'✓';position:absolute;left:0;color:var(--primary)}

/* video */
.video-wrapper{position:relative;width:100%;aspect-ratio:16/9;border-radius:16px;overflow:hidden;box-shadow:var(--shadow)}
.video-placeholder{display:grid;place-items:center;background:linear-gradient(135deg,#dfe6e1,#e9efea);color:var(--primary-700);height:100%;text-align:center;padding:20px}
.video-placeholder code{background:#fff;padding:2px 6px;border-radius:6px}

/* social */
.social-grid{display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:18px;align-items:start}
.social-card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:16px}
.social-card.link{text-decoration:none;color:inherit;display:block}
.fb-embed iframe{width:100%;height:480px}

/* map */
.map-wrapper{border-radius:16px;overflow:hidden;box-shadow:var(--shadow);height:420px}
.map-wrapper iframe{border:0;width:100%;height:100%}

/* form */
.contact-form{background:var(--card);padding:18px;border-radius:var(--radius);box-shadow:var(--shadow)}
.grid-form{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.grid-form input,.grid-form select,.grid-form textarea{width:100%;padding:12px 14px;border:1px solid #dde2e0;border-radius:12px;font:inherit}
.grid-form textarea{grid-column:1/-1}

/* footer */
.footer{background:#0f1b17;color:#dce5e1;padding:28px 0;margin-top:40px}
.footer-grid{display:flex;align-items:center;justify-content:space-between;gap:18px}
.footer a{color:#d3f1e6}
.footer-logo{width:54px;border-radius:10px;margin-bottom:8px}

/* WhatsApp floating button */
.whatsapp-float{position:fixed;right:18px;bottom:18px;background:#25D366;color:#fff;width:56px;height:56px;border-radius:50%;display:grid;place-items:center;box-shadow:0 10px 24px rgba(37,211,102,.5);z-index:99;text-decoration:none}
.whatsapp-float svg{width:28px;height:28px}

/* responsive */
@media (max-width: 980px){
  .cards{grid-template-columns:1fr 1fr}
  .grid-gallery{grid-template-columns:repeat(2,1fr)}
  .flex{grid-template-columns:1fr}
  .social-grid{grid-template-columns:1fr}
  .fb-embed iframe{height:420px}
  .hero{height:68vh}
}
@media (max-width:600px){
  .grid-form{grid-template-columns:1fr}
}