/* =========================================================
   HAPPY AQUA — Design tokens
   Palette pulled from the badge logo: deep navy shield,
   sky-blue droplet gradient, brushed-steel ring.
========================================================= */
:root{
  --navy-900:#081b30;
  --navy-800:#0d2847;
  --navy-700:#123457;
  --blue-600:#1c8fd4;
  --blue-500:#2ba3e6;
  --blue-300:#6fcdf7;
  --blue-100:#e2f5fd;
  --silver-300:#dbe4ec;
  --silver-500:#aebccb;
  --silver-700:#7c8ea3;
  --ink:#0f2338;
  --ink-soft:#4c5f74;
  --mist:#f4f9fc;
  --white:#ffffff;
  --amber:#f2a93b;

  --font-display:'Space Grotesk', 'Segoe UI', sans-serif;
  --font-body:'Inter', 'Segoe UI', sans-serif;
  --font-mono:'IBM Plex Mono', monospace;

  --radius-s:8px;
  --radius-m:16px;
  --radius-l:28px;
  --shadow-soft:0 20px 50px -25px rgba(8,27,48,0.35);
  --shadow-card:0 10px 30px -12px rgba(8,27,48,0.22);
  --maxw:1180px;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;overflow-x:hidden;}
body{
  margin:0;
  font-family:var(--font-body);
  color:var(--ink);
  background:var(--white);
  -webkit-font-smoothing:antialiased;
  line-height:1.6;
  overflow-x:hidden;
  max-width:100vw;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
ul{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{
  font-family:var(--font-display);
  color:var(--navy-800);
  line-height:1.12;
  margin:0 0 .5em;
  letter-spacing:-0.01em;
}
p{margin:0 0 1em;}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px;}
.eyebrow{
  font-family:var(--font-mono);
  font-size:.72rem;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--blue-600);
  display:flex;align-items:center;gap:10px;
  margin-bottom:14px;
}
.eyebrow::before{
  content:"";width:22px;height:2px;background:var(--blue-500);display:inline-block;
}
.section{padding:88px 0;}
.section-tight{padding:56px 0;}
.section-mist{background:var(--mist);}
.section-navy{background:var(--navy-800);color:var(--silver-300);}
.section-navy h2,.section-navy h3{color:var(--white);}
.section-navy .eyebrow{color:var(--blue-300);}
.section-navy .eyebrow::before{background:var(--blue-300);}

.grid{display:grid;gap:28px;}
.grid-2{grid-template-columns:repeat(2,1fr);}
.grid-3{grid-template-columns:repeat(3,1fr);}
.grid-4{grid-template-columns:repeat(4,1fr);}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;border-radius:999px;
  font-family:var(--font-body);font-weight:600;font-size:.95rem;
  border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease, box-shadow .18s ease, background .18s ease, color .18s ease;
  white-space:nowrap;
}
.btn:hover{transform:translateY(-2px);}
.btn-primary{background:var(--blue-500);color:var(--white);box-shadow:0 14px 28px -12px rgba(43,163,230,.55);}
.btn-primary:hover{background:var(--blue-600);}
.btn-ghost{background:transparent;color:var(--white);border-color:rgba(255,255,255,.4);}
.btn-ghost:hover{border-color:var(--white);}
.btn-outline-navy{background:transparent;color:var(--navy-800);border-color:var(--navy-800);}
.btn-outline-navy:hover{background:var(--navy-800);color:var(--white);}
.btn-amber{background:var(--amber);color:var(--navy-900);box-shadow:0 14px 28px -12px rgba(242,169,59,.5);}
.btn-sm{padding:10px 18px;font-size:.85rem;}
.btn-block{width:100%;}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(8,27,48,.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.header-row{
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:nowrap;
  padding:13px 12px;max-width:var(--maxw);margin:0 auto;
}
.brand{display:flex;align-items:center;gap:12px;color:var(--white);flex:0 1 auto;min-width:0;overflow:hidden;}
.brand img{width:90px;height:90px;border-radius:14px;object-fit:cover;flex:0 0 auto;}
.brand-name{font-family:var(--font-display);font-weight:700;font-size:1.05rem;letter-spacing:.01em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;display:block;max-width:46vw;}
.brand-name span{color:var(--blue-300);}
.brand-tag{display:block;font-family:var(--font-mono);font-size:.58rem;letter-spacing:.12em;color:var(--silver-500);text-transform:uppercase;white-space:nowrap;}
.nav-links{
  display:flex;gap:18px;align-items:center;flex:1 1 auto;justify-content:center;
  min-width:0;overflow:hidden;
}
.nav-links a{color:var(--silver-300);font-size:.86rem;font-weight:500;transition:color .15s;position:relative;white-space:nowrap;}
.nav-links a:hover,.nav-links a.active{color:var(--white);}
.nav-links a.active::after{content:"";position:absolute;left:0;right:0;bottom:-8px;height:2px;background:var(--blue-300);}
.header-cta{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.header-phone{color:var(--white);font-family:var(--font-mono);font-size:.8rem;display:flex;align-items:center;gap:6px;white-space:nowrap;}
.nav-toggle{display:none;background:none;border:1px solid rgba(255,255,255,.3);color:var(--white);width:42px;height:42px;border-radius:8px;font-size:1.2rem;cursor:pointer;flex:0 0 auto;}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background:radial-gradient(120% 140% at 80% 0%, #123a63 0%, var(--navy-800) 45%, var(--navy-900) 100%);
  color:var(--white);
  padding:90px 0 70px;
}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center;}
.hero h1{color:var(--white);font-size:clamp(2.2rem,4vw,3.4rem);}
.hero .lead{color:var(--silver-300);font-size:1.08rem;max-width:52ch;}
.hero-actions{display:flex;gap:14px;margin-top:28px;flex-wrap:wrap;}
.hero-stats{display:flex;gap:32px;margin-top:44px;flex-wrap:wrap;}
.hero-stat b{display:block;font-family:var(--font-display);font-size:1.7rem;color:var(--blue-300);}
.hero-stat span{font-size:.78rem;color:var(--silver-500);font-family:var(--font-mono);text-transform:uppercase;letter-spacing:.08em;}

.droplet-wrap{position:relative;display:flex;align-items:center;justify-content:center;}
.ripple{position:absolute;border:1px solid rgba(111,205,247,.25);border-radius:50%;}
.ripple.r1{width:260px;height:260px;animation:pulse 4s ease-in-out infinite;}
.ripple.r2{width:360px;height:360px;animation:pulse 4s ease-in-out infinite .6s;}
.ripple.r3{width:460px;height:460px;animation:pulse 4s ease-in-out infinite 1.2s;}
@keyframes pulse{0%,100%{opacity:.35;transform:scale(1);}50%{opacity:.9;transform:scale(1.04);}}
@media (prefers-reduced-motion: reduce){.ripple{animation:none;}}

/* ---------- Page header (inner pages) ---------- */
.page-header{
  background:linear-gradient(180deg, var(--navy-900), var(--navy-800));
  color:var(--white);padding:64px 0 48px;
}
.page-header h1{color:var(--white);font-size:clamp(1.9rem,3vw,2.6rem);}
.breadcrumb{font-family:var(--font-mono);font-size:.75rem;color:var(--silver-500);margin-bottom:14px;letter-spacing:.05em;}
.breadcrumb a{color:var(--blue-300);}

/* ---------- Cards ---------- */
.card{
  background:var(--white);border-radius:var(--radius-m);
  box-shadow:var(--shadow-card);padding:28px;
  border:1px solid rgba(15,35,56,.05);
}
.icon-tile{
  width:52px;height:52px;border-radius:14px;
  background:linear-gradient(135deg,var(--blue-500),var(--navy-700));
  display:flex;align-items:center;justify-content:center;color:var(--white);
  margin-bottom:18px;font-size:1.3rem;
}

/* ---------- Stage flow (filtration) — signature element ---------- */
.stage-flow{display:flex;gap:0;align-items:stretch;overflow-x:auto;padding-bottom:8px;}
.stage{
  flex:1 0 150px;position:relative;padding:26px 18px;border-radius:var(--radius-m);
  color:var(--white);text-align:left;margin-right:14px;
}
.stage:last-child{margin-right:0;}
.stage .num{font-family:var(--font-mono);font-size:.75rem;opacity:.85;display:block;margin-bottom:10px;}
.stage h4{color:var(--white);font-size:1rem;margin-bottom:6px;}
.stage p{font-size:.82rem;color:rgba(255,255,255,.82);margin:0;}
.stage-arrow{align-self:center;color:var(--blue-300);font-size:1.4rem;padding:0 4px;flex:0 0 auto;display:flex;align-items:center;}

/* ---------- Product card ---------- */
.product-card{
  background:var(--white);border-radius:var(--radius-m);overflow:hidden;
  box-shadow:var(--shadow-card);border:1px solid rgba(15,35,56,.06);
  display:flex;flex-direction:column;
}
.product-media{
  background:linear-gradient(160deg,var(--blue-100),var(--silver-300));
  height:190px;display:flex;align-items:center;justify-content:center;position:relative;
}
.product-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.tag-row{display:flex;gap:8px;flex-wrap:wrap;}
.tag{
  font-family:var(--font-mono);font-size:.68rem;letter-spacing:.04em;
  background:var(--blue-100);color:var(--blue-600);padding:4px 10px;border-radius:999px;
}
.price-row{display:flex;align-items:baseline;gap:8px;margin-top:auto;flex-wrap:wrap;}
.price{font-family:var(--font-display);font-size:1.4rem;color:var(--navy-800);font-weight:700;}
.price-old{font-size:.85rem;color:var(--silver-700);text-decoration:line-through;}

/* ---------- Spec table ---------- */
.spec-table{width:100%;border-collapse:collapse;font-size:.92rem;}
.spec-table tr{border-bottom:1px solid var(--silver-300);}
.spec-table td{padding:12px 4px;}
.spec-table td:first-child{color:var(--ink-soft);font-family:var(--font-mono);font-size:.78rem;width:42%;}
.spec-table td:last-child{font-weight:600;color:var(--navy-800);}

/* ---------- Testimonial ---------- */
.testimonial{background:var(--white);border-radius:var(--radius-m);padding:28px;box-shadow:var(--shadow-card);}
.stars{color:var(--amber);letter-spacing:2px;margin-bottom:10px;}
.t-author{display:flex;align-items:center;gap:12px;margin-top:16px;}
.t-avatar{width:42px;height:42px;border-radius:50%;background:var(--navy-700);color:var(--white);display:flex;align-items:center;justify-content:center;font-family:var(--font-display);font-weight:700;}

/* ---------- Forms ---------- */
.form-field{margin-bottom:18px;display:flex;flex-direction:column;gap:6px;}
.form-field label{font-size:.8rem;font-weight:600;color:var(--navy-800);}
.form-field input,.form-field select,.form-field textarea{
  padding:13px 14px;border-radius:var(--radius-s);border:1.5px solid var(--silver-300);
  font-family:var(--font-body);font-size:.95rem;color:var(--ink);background:var(--white);
}
.form-field input:focus,.form-field select:focus,.form-field textarea:focus{
  outline:none;border-color:var(--blue-500);box-shadow:0 0 0 4px var(--blue-100);
}
.form-card{background:var(--white);border-radius:var(--radius-l);padding:36px;box-shadow:var(--shadow-soft);}
.form-note{font-size:.78rem;color:var(--ink-soft);margin-top:10px;}
.form-success{display:none;background:var(--blue-100);border:1px solid var(--blue-300);color:var(--navy-800);padding:16px;border-radius:var(--radius-s);font-size:.9rem;}

/* ---------- Plan / pricing ---------- */
.plan-card{
  background:var(--white);border-radius:var(--radius-m);padding:30px;box-shadow:var(--shadow-card);
  border:2px solid transparent;display:flex;flex-direction:column;gap:14px;
}
.plan-card.featured{border-color:var(--blue-500);position:relative;transform:translateY(-6px);}
.plan-badge{position:absolute;top:-13px;left:50%;transform:translateX(-50%);background:var(--blue-500);color:var(--white);font-family:var(--font-mono);font-size:.68rem;padding:5px 14px;border-radius:999px;letter-spacing:.05em;}
.plan-price{font-family:var(--font-display);font-size:2.1rem;color:var(--navy-800);}
.plan-price small{font-size:.9rem;font-weight:400;color:var(--ink-soft);}
.plan-list li{display:flex;gap:10px;align-items:flex-start;font-size:.9rem;padding:6px 0;color:var(--ink-soft);}
.plan-list li b{color:var(--navy-800);}
.check{color:var(--blue-600);flex:0 0 auto;}

/* ---------- FAQ accordion ---------- */
.faq-item{border-bottom:1px solid var(--silver-300);}
.faq-q{
  width:100%;text-align:left;background:none;border:none;padding:20px 0;
  font-family:var(--font-display);font-size:1.02rem;color:var(--navy-800);
  display:flex;justify-content:space-between;align-items:center;cursor:pointer;gap:16px;
}
.faq-q .plus{font-size:1.3rem;color:var(--blue-500);transition:transform .2s;flex:0 0 auto;}
.faq-item.open .faq-q .plus{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .25s ease;color:var(--ink-soft);font-size:.92rem;}
.faq-a p{padding-bottom:18px;margin:0;}

/* ---------- Footer ---------- */
.site-footer{background:var(--navy-900);color:var(--silver-500);padding:60px 0 24px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:36px;}
.footer-brand .brand-name{color:var(--white);}
.footer-col h4{color:var(--white);font-size:.85rem;text-transform:uppercase;letter-spacing:.08em;font-family:var(--font-mono);margin-bottom:16px;}
.footer-col li{margin-bottom:10px;font-size:.88rem;}
.footer-col a:hover{color:var(--blue-300);}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);margin-top:44px;padding-top:22px;display:flex;justify-content:space-between;font-size:.8rem;flex-wrap:wrap;gap:10px;}

/* ---------- Floating WhatsApp ---------- */
.float-whatsapp{
  position:fixed;bottom:24px;right:24px;z-index:200;
  width:58px;height:58px;border-radius:50%;background:#25D366;
  display:flex;align-items:center;justify-content:center;color:#fff;font-size:1.6rem;
  box-shadow:0 12px 26px -8px rgba(37,211,102,.6);
  transition:transform .2s;
}
.float-whatsapp:hover{transform:scale(1.08);}

/* ---------- Utility ---------- */
.text-center{text-align:center;}
.mx-auto{margin-left:auto;margin-right:auto;}
.mt-0{margin-top:0;}
.max-56{max-width:56ch;}
.divider{height:1px;background:var(--silver-300);border:none;margin:0;}
.badge-strip{display:flex;gap:26px;flex-wrap:wrap;align-items:center;justify-content:center;opacity:.85;}
.badge-strip span{font-family:var(--font-mono);font-size:.72rem;color:var(--ink-soft);letter-spacing:.05em;text-transform:uppercase;border:1px solid var(--silver-300);padding:6px 14px;border-radius:999px;}

/* ---------- Responsive ---------- */
@media (max-width:1180px){
  .nav-links,.header-phone{display:none;}
  .nav-toggle{display:block;}
}
@media (max-width:600px){
  .brand-tag{display:none;}
  .brand-name{display:none;}
  .brand img{width:60px;height:60px;border-radius:14px;}
  .header-cta .btn-primary{display:none;}
  .header-row{padding:20px 16px;gap:10px;}
  .header-cta{gap:8px;}
}
@media (max-width:980px){
  .hero-grid{grid-template-columns:1fr;}
  .droplet-wrap{order:-1;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .grid-3,.grid-4{grid-template-columns:1fr 1fr;}
}
@media (max-width:720px){
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr;}
  .hero-stats{gap:24px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
  .section{padding:60px 0;}
  .form-card{padding:24px;}
}

/* Mobile nav drawer */
.mobile-nav{
  display:none;position:fixed;inset:0;background:var(--navy-900);z-index:300;
  padding:24px;flex-direction:column;overflow-y:auto;
}
.mobile-nav.open{display:flex;}
.mobile-nav .close-btn{align-self:flex-end;background:none;border:none;color:#fff;font-size:1.6rem;cursor:pointer;}
.mobile-nav a{color:var(--silver-300);font-size:1.2rem;padding:14px 0;border-bottom:1px solid rgba(255,255,255,.08);font-family:var(--font-display);}