:root{
  --bg:#0b1220;
  --panel:#0f172a;
  --card:rgba(255,255,255,0.06);
  --text:#e6eef8;
  --muted:#9fb3c8;
  --primary:#0ea5e9;      /* aqua accent */
  --primary-2:#2563eb;    /* deep blue */
  --ring:rgba(14,165,233,0.35);
  --success:#22c55e;
  --danger:#ef4444;
  --border:rgba(255,255,255,0.12);
  --shadow:0 10px 30px rgba(0,0,0,0.35), 0 1px 0 rgba(255,255,255,0.04) inset;
  --radius:14px;
  --radius-sm:10px;
  --radius-lg:18px;
  --container:1200px;
}

*{box-sizing:border-box}
html{overflow-x:hidden}
body{
  margin:0;
  overflow-x:hidden;
  font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;
  color:var(--text);
  background:linear-gradient(180deg,#07101d 0%, #0b1220 40%, #0b1220 100%);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;overflow-wrap:anywhere}

/* Scroll reveal (kept early in cascade so component :hover transforms below always win) */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s cubic-bezier(.2,.7,.2,1), transform .7s cubic-bezier(.2,.7,.2,1)}
.reveal.is-visible{opacity:1;transform:none}
.container{width:100%;max-width:var(--container);margin-inline:auto;padding:0 20px}
.section{padding:72px 0}
.section-header{max-width:760px;margin:0 auto 36px auto;text-align:center}
.section-header.compact{margin-bottom:20px;text-align:left}
.section-header h2{margin:0 0 10px 0;font-size:32px;line-height:1.2}
.section-header p{margin:0;color:var(--muted)}

/* Accessibility */
.skip-link{
  position:absolute;left:-9999px;top:auto;width:1px;height:1px;overflow:hidden;
}
.skip-link:focus{
  position:fixed;left:16px;top:16px;width:auto;height:auto;padding:10px 14px;background:#fff;color:#000;border-radius:8px;z-index:9999
}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* Header */
.site-header{
  position:sticky;top:0;z-index:50;background:rgba(11,18,32,0.6);backdrop-filter:blur(12px);border-bottom:1px solid var(--border);
  transition:box-shadow .3s ease, background .3s ease;
}
.site-header.scrolled{box-shadow:0 6px 20px rgba(0,0,0,0.35);background:rgba(11,18,32,0.8)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:68px}

.brand{display:inline-flex;align-items:center;gap:10px}
.logo{filter:drop-shadow(0 6px 12px rgba(14,165,233,0.35))}
.brand-text{font-weight:600;letter-spacing:.2px}
.brand-footer .brand-text{font-weight:600}

.nav{position:fixed;inset:68px 0 auto 0;background:rgba(11,18,32,0.98);backdrop-filter:blur(8px);transform:translateY(-8px);opacity:0;pointer-events:none;transition:opacity .25s ease; }
.nav.open{opacity:1;pointer-events:auto}
.nav ul{list-style:none;margin:0;padding:14px 20px;display:flex;flex-direction:column;gap:8px}
.nav a{display:block;padding:10px 12px;border-radius:10px;color:var(--text)}
.nav a:hover{background:rgba(255,255,255,0.06)}
.nav .btn{padding:10px 14px}

.nav-toggle{
  background:transparent;border:1px solid var(--border);color:var(--text);width:42px;height:38px;border-radius:10px;display:grid;place-items:center
}
.nav-toggle-bar{position:relative;display:block;width:20px;height:2px;background:var(--text)}
.nav-toggle-bar::before,.nav-toggle-bar::after{
  content:"";position:absolute;left:0;width:20px;height:2px;background:var(--text);transition:transform .25s ease, top .25s ease, opacity .25s ease
}
.nav-toggle-bar::before{top:-6px}
.nav-toggle-bar::after{top:6px}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar{background:transparent}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar::before{top:0;transform:rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar::after{top:0;transform:rotate(-45deg)}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 16px;border-radius:12px;border:1px solid transparent;
  font-weight:600;letter-spacing:.2px;transition:transform .06s ease, box-shadow .25s ease, background .25s ease, border-color .25s ease
}
.btn:active{transform:translateY(1px)}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-2));box-shadow:0 10px 20px rgba(14,165,233,0.25)}
.btn-primary:hover{box-shadow:0 12px 28px rgba(14,165,233,0.35)}
.btn-secondary{background:rgba(255,255,255,0.08);border-color:var(--border)}
.btn-secondary:hover{background:rgba(255,255,255,0.12)}
.btn-ghost{background:transparent;border-color:var(--border)}
.btn-ghost:hover{background:rgba(255,255,255,0.06)}
.btn-whatsapp{background:rgba(37,211,102,0.12);border-color:rgba(37,211,102,0.4);color:#25D366}
.btn-whatsapp:hover{background:rgba(37,211,102,0.2)}
.btn[disabled]{opacity:.7;cursor:progress}

.eyebrow{color:var(--muted);text-transform:uppercase;letter-spacing:.16em;font-size:12px;margin:0 0 14px 0}

/* Hero */
.hero{position:relative;padding:32px 0 24px 0;overflow:hidden}
.hero-inner{display:grid;gap:28px;align-items:center}
.hero-copy h1{margin:0 0 12px 0;font-size:36px;line-height:1.1}
.lead{color:var(--muted);margin:0 0 18px 0}
.hero-ctas{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:14px}
.trust-badges{display:flex;flex-wrap:wrap;gap:10px;padding:0;margin:0;list-style:none}
.trust-badges li{padding:8px 12px;border:1px solid var(--border);border-radius:999px;color:var(--muted);background:rgba(255,255,255,0.04)}

.hero-media{position:relative}
.glass-card{
  background:linear-gradient(180deg,rgba(255,255,255,0.08),rgba(255,255,255,0.04));
  border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow);overflow:hidden
}
.glass-card img{aspect-ratio:4/3;object-fit:cover;transition:transform .6s cubic-bezier(.2,.7,.2,1)}
.glass-card:hover img{transform:scale(1.03)}
.floating-stats{position:absolute;right:0;bottom:-12px;display:flex;gap:10px}
.stat{background:rgba(11,18,32,0.9);border:1px solid var(--border);backdrop-filter:blur(8px);padding:10px 12px;border-radius:12px;box-shadow:var(--shadow)}
.stat-value{font-weight:700}
.stat-label{display:block;color:var(--muted);font-size:12px}
.hero-gradient{position:absolute;inset:auto -10% -25% -10%;height:50%;background:
 radial-gradient(60% 60% at 70% 20%, rgba(14,165,233,0.18), transparent 60%),
 radial-gradient(60% 60% at 30% 80%, rgba(37,99,235,0.18), transparent 60%);
 filter:blur(40px);pointer-events:none}

/* Solutions */
.features-grid{display:grid;gap:14px}
.feature{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:18px;transition:transform .2s ease, background .2s ease}
.feature:hover{transform:translateY(-2px);background:rgba(255,255,255,0.08)}
.icon-wrap{width:42px;height:42px;display:grid;place-items:center;border-radius:10px;background:linear-gradient(135deg,rgba(14,165,233,0.18),rgba(37,99,235,0.18));color:#bfe8ff;margin-bottom:8px}
.feature h3{margin:4px 0 6px 0;font-size:18px}
.feature p{margin:0;color:var(--muted)}

/* Products */
.cards{display:grid;gap:16px}
.card{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:transform .3s ease, box-shadow .3s ease}
.card:hover{transform:translateY(-6px);box-shadow:0 20px 40px rgba(0,0,0,0.4)}
.card-media img{aspect-ratio:16/10;object-fit:cover;transition:transform .5s cubic-bezier(.2,.7,.2,1)}
.card:hover .card-media img{transform:scale(1.05)}
.card-media.bottle-media{aspect-ratio:16/10;overflow:hidden}
.bottle-illustration{width:100%;height:100%;display:block;transition:transform .5s cubic-bezier(.2,.7,.2,1)}
.card:hover .bottle-illustration{transform:scale(1.04)}
.bottle-illustration .bottle-water{animation:waterShimmer 4s ease-in-out infinite}
@keyframes waterShimmer{0%,100%{opacity:.9}50%{opacity:.72}}
.card-body{padding:16px}
.card-body h3{margin:0 0 6px 0}
.card-body p{margin:0 0 12px 0;color:var(--muted)}
.specs{list-style:none;padding:0;margin:0 0 14px 0;display:grid;gap:6px;color:var(--muted)}
.specs li{position:relative;padding-left:18px}
.specs li::before{content:"";position:absolute;left:0;top:.6em;width:8px;height:2px;background:linear-gradient(90deg,var(--primary),var(--primary-2));border-radius:2px}

/* Labeling */
.labeling-grid{display:grid;gap:18px;align-items:center}
.bullets{list-style:none;margin:14px 0 18px 0;padding:0;display:grid;gap:8px}
.bullets li{padding-left:22px;position:relative}
.bullets li::before{content:"✓";position:absolute;left:0;top:0;color:var(--success)}
.stack-cta{display:flex;gap:10px;flex-wrap:wrap}
.labeling-media img{aspect-ratio:16/10;object-fit:cover}

/* Logos */
.logos{padding:48px 0}
.logo-row{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:12px;opacity:.85}
.logo-row span{display:grid;place-items:center;height:56px;border:1px dashed var(--border);border-radius:12px;color:var(--muted);background:rgba(255,255,255,0.03)}

/* About */
.about-grid{display:grid;gap:18px;align-items:center}
.pill-stats{display:flex;gap:10px;flex-wrap:wrap;margin:10px 0 12px 0}
.pill{border:1px solid var(--border);border-radius:999px;padding:8px 12px;background:rgba(255,255,255,0.04)}
.pill strong{margin-right:6px}
.ro-plant-card{position:relative;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--border);box-shadow:var(--shadow)}
.ro-plant-card img{aspect-ratio:4/3;object-fit:cover;transition:transform .6s cubic-bezier(.2,.7,.2,1)}
.ro-plant-card:hover img{transform:scale(1.04)}
.ro-plant-badge{
  position:absolute;left:16px;bottom:16px;display:inline-flex;align-items:center;gap:8px;
  padding:9px 14px;border-radius:999px;background:rgba(11,18,32,0.75);backdrop-filter:blur(8px);
  border:1px solid var(--border);font-size:13px;font-weight:600;color:#fff;
}
.badge-dot{width:8px;height:8px;border-radius:50%;background:var(--success);animation:pulseDot 2s infinite}
@keyframes pulseDot{
  0%{box-shadow:0 0 0 0 rgba(34,197,94,.6)}
  70%{box-shadow:0 0 0 8px rgba(34,197,94,0)}
  100%{box-shadow:0 0 0 0 rgba(34,197,94,0)}
}

/* Filtration process */
.process{margin-top:64px}
.process-head{max-width:640px;margin:0 auto;text-align:center}
.process-head h3{margin:0 0 8px 0;font-size:24px}
.process-head p{margin:0;color:var(--muted)}
.process-track{
  display:flex;gap:0;margin-top:40px;padding:14px 4px 24px 4px;
  overflow-x:auto;scroll-snap-type:x proximity;-webkit-overflow-scrolling:touch;
}
.process-stage{
  position:relative;flex:0 0 auto;width:150px;padding:0 8px;
  display:flex;flex-direction:column;align-items:center;text-align:center;gap:8px;
  scroll-snap-align:start;
}
.process-stage:not(:last-child)::after{
  content:"";position:absolute;top:28px;left:calc(50% + 30px);width:calc(100% - 12px);height:2px;
  background:linear-gradient(90deg, rgba(56,189,248,.55), rgba(37,99,235,.12));
}
.process-stage .stage-icon{
  position:relative;z-index:1;width:56px;height:56px;border-radius:50%;
  display:grid;place-items:center;color:#bfe8ff;
  background:linear-gradient(135deg, rgba(14,165,233,.2), rgba(37,99,235,.2));
  border:1px solid var(--border);box-shadow:0 8px 20px rgba(14,165,233,.18);
}
.process-stage .stage-num{
  position:absolute;top:-4px;left:calc(50% + 14px);z-index:2;
  width:20px;height:20px;border-radius:50%;background:var(--primary);color:#04121b;
  font-size:11px;font-weight:700;display:grid;place-items:center;
}
.process-stage h4{margin:0;font-size:13px;font-weight:600}
.process-stage p{margin:0;color:var(--muted);font-size:11.5px;line-height:1.4}
.process-droplet{
  position:absolute;top:26px;left:calc(50% + 30px);width:6px;height:6px;border-radius:50%;
  background:#bfe8ff;box-shadow:0 0 8px 3px rgba(56,189,248,.7);
  animation:processFlow 2.4s linear infinite;
}
@keyframes processFlow{
  0%{transform:translateX(0);opacity:0}
  12%{opacity:1}
  88%{opacity:1}
  100%{transform:translateX(calc(150px - 42px));opacity:0}
}

/* FAQ */
.accordion details{background:var(--card);border:1px solid var(--border);border-radius:12px;margin-bottom:10px;overflow:hidden}
.accordion summary{cursor:pointer;padding:14px 16px;font-weight:600;list-style:none}
.accordion p{padding:0 16px 16px 16px;margin:0;color:var(--muted)}
.accordion details[open] summary{border-bottom:1px solid var(--border)}

/* Contact */
.contact-grid{display:grid;gap:18px;align-items:start}
.contact-copy p{color:var(--muted);margin:6px 0 12px 0}
.contact-points{list-style:none;padding:0;margin:0;display:grid;gap:8px}
.contact-points a.wa{color:#25D366}
.form{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:16px;box-shadow:var(--shadow)}
.form .form-row{display:grid;gap:12px}
.field{display:grid;gap:6px}
label{font-weight:600}
input,select,textarea{
  background:rgba(255,255,255,0.04);
  color:var(--text);
  border:1px solid var(--border);
  border-radius:10px;
  padding:12px 12px;
  outline:none;
  transition:border-color .2s ease, box-shadow .2s ease, background .2s ease
}
input:focus,select:focus,textarea:focus{border-color:var(--primary);box-shadow:0 0 0 4px var(--ring)}
select{
  appearance:none;
  -webkit-appearance:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%239fb3c8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat:no-repeat;
  background-position:right 12px center;
  background-size:18px;
  padding-right:36px;
}
select option{
  background:var(--panel);
  color:var(--text);
}
.error{color:var(--danger);font-size:12px;min-height:16px}
.form-note{color:var(--muted);font-size:12px;margin:8px 0 0 0}
.form-success{margin-top:10px;color:#a7f3d0;animation:fadeUp .4s ease}
.form-error{margin-top:10px;color:#fca5a5;animation:fadeUp .4s ease}
@keyframes fadeUp{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}

.actions{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-top:8px}

.map-card{
  margin-top:32px;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);
}
.map-card iframe{width:100%;height:340px;border:0;display:block;filter:invert(90%) hue-rotate(180deg) contrast(85%)}

/* Footer */
.site-footer{border-top:1px solid var(--border);background:#0a101c;padding-top:32px}
.footer-grid{display:grid;gap:18px}
.footer-nav{display:grid;grid-template-columns:1fr;gap:24px}
.footer-nav h4{margin:0 0 8px 0}
.footer-nav ul{list-style:none;padding:0;margin:0;display:grid;gap:6px}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:10px 16px;border-top:1px solid var(--border);padding:12px 0;margin-top:16px}
.footer-bottom p{margin:0;color:var(--muted)}
.footer-bottom .legal{display:flex;gap:12px;flex-wrap:wrap}
.footer-bottom .legal a{color:var(--muted);white-space:nowrap}
.brand-footer{display:inline-flex;align-items:center;gap:8px;margin-bottom:8px}
.social-links{display:flex;gap:10px;margin-top:14px}
.social-links a{
  display:grid;place-items:center;width:36px;height:36px;border-radius:50%;
  background:rgba(255,255,255,0.06);border:1px solid var(--border);color:var(--text);
  transition:background .2s ease, transform .2s ease, color .2s ease;
}
.social-links a:hover{background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#fff;transform:translateY(-2px)}

/* WhatsApp FAB */
.whatsapp-fab{
  position:fixed;right:18px;bottom:18px;width:56px;height:56px;border-radius:50%;
  background:linear-gradient(135deg,#25D366,#128C7E);color:#fff;border:none;display:grid;place-items:center;
  box-shadow:0 12px 30px rgba(18,140,126,0.4);cursor:pointer;z-index:60;transition:transform .08s ease
}
.whatsapp-fab:active{transform:translateY(1px)}

/* Call FAB */
.call-fab{
  position:fixed;right:18px;bottom:86px;width:56px;height:56px;border-radius:50%;
  background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#fff;border:none;display:grid;place-items:center;
  box-shadow:0 12px 30px rgba(14,165,233,0.4);cursor:pointer;z-index:60;transition:transform .08s ease
}
.call-fab:active{transform:translateY(1px)}
.call-fab svg{animation:ringWiggle 3.5s ease-in-out infinite}
@keyframes ringWiggle{
  0%,80%,100%{transform:rotate(0)}
  82%{transform:rotate(-15deg)}
  84%{transform:rotate(13deg)}
  86%{transform:rotate(-10deg)}
  88%{transform:rotate(7deg)}
  90%{transform:rotate(0)}
}

/* Modal */
.modal[hidden]{display:none}
.modal{position:fixed;inset:0;z-index:70}
.modal-backdrop{position:absolute;inset:0;background:rgba(0,0,0,0.6);backdrop-filter:blur(4px)}
.modal:not([hidden]) .modal-backdrop{animation:modalFade .25s ease}
.modal-panel{
  position:relative;z-index:1;background:var(--panel);border:1px solid var(--border);border-radius:16px;box-shadow:var(--shadow);
  margin:8vh auto 0 auto;max-width:900px;padding:20px;
  max-height:82vh;overflow-y:auto;overscroll-behavior:contain;
  scrollbar-width:thin;scrollbar-color:var(--primary) rgba(255,255,255,0.06);
}
.modal:not([hidden]) .modal-panel{animation:modalIn .3s cubic-bezier(.2,.8,.2,1)}
.modal-panel::-webkit-scrollbar{width:8px}
.modal-panel::-webkit-scrollbar-track{background:rgba(255,255,255,0.04);border-radius:8px}
.modal-panel::-webkit-scrollbar-thumb{background:linear-gradient(var(--primary),var(--primary-2));border-radius:8px}
@keyframes modalFade{from{opacity:0}to{opacity:1}}
@keyframes modalIn{from{opacity:0;transform:translateY(18px) scale(.98)}to{opacity:1;transform:none}}
.modal-close{
  position:sticky;float:right;top:0;right:0;margin-left:12px;width:36px;height:36px;border-radius:8px;border:1px solid var(--border);background:rgba(15,23,42,0.9);backdrop-filter:blur(4px);color:var(--text);font-size:22px;cursor:pointer;transition:background .2s ease, transform .2s ease;z-index:2
}
.modal-close:hover{background:rgba(255,255,255,0.1);transform:rotate(90deg)}
.modal-gallery{display:grid;gap:14px;margin-top:8px;grid-template-columns:repeat(auto-fit,minmax(200px,1fr))}
.modal-gallery figure{margin:0;position:relative;border-radius:14px;overflow:hidden;border:1px solid var(--border);box-shadow:var(--shadow)}
.modal-gallery img{border-radius:0;aspect-ratio:4/3;object-fit:cover;transition:transform .5s cubic-bezier(.2,.7,.2,1)}
.modal-gallery figure:hover img{transform:scale(1.08)}
.modal-gallery figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:10px 12px 8px 12px;
  background:linear-gradient(0deg, rgba(0,0,0,0.75), transparent);
  font-size:13px;font-weight:600;color:#fff;
}

@media (prefers-reduced-motion: reduce){
  .reveal{opacity:1;transform:none;transition:none}
  .process-droplet, .bottle-illustration .bottle-water, .glass-card img, .card, .card-media img, .bottle-illustration,
  .modal:not([hidden]) .modal-panel, .modal:not([hidden]) .modal-backdrop, .form-success, .form-error, .call-fab svg, .badge-dot{
    animation:none!important;transition:none!important
  }
}

/* Responsive */
@media (min-width:600px){
  .hero-inner{grid-template-columns:1.1fr .9fr;gap:36px}
  .features-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
  .cards{grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
  .labeling-grid{grid-template-columns:1.1fr .9fr;gap:20px}
  .about-grid{grid-template-columns:1.1fr .9fr;gap:20px}
  .contact-grid{grid-template-columns:1fr 1.2fr;gap:20px}
  .form .form-row{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-nav{grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
}

@media (min-width:980px){
  .hero-copy h1{font-size:46px}
  .section{padding:90px 0}
  .logo-row{gap:16px}
  .process-track{overflow-x:visible;justify-content:space-between}
}

/* Focus styles */
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{
  outline:2px solid var(--primary);outline-offset:2px
}