/* ==========================================================================
   BH2O — Hydro power and industrial solutions
   Stylesheet. Single file, no build step required.
   ========================================================================== */

:root{
  --ink:#08192C;
  --navy:#0E2C4B;
  --navy-2:#143C66;
  --blue:#1A6FC4;
  --blue-600:#155CA5;
  --blue-light:#4A9FE0;
  --steel:#5C6E82;
  --steel-light:#8A9AAC;
  --line:#DCE3EC;
  --line-strong:#C3CEDC;
  --bg:#FFFFFF;
  --soft:#F4F7FA;
  --soft-2:#E9EFF6;

  --ff-head:"Barlow Condensed","Arial Narrow",Impact,sans-serif;
  --ff-body:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;

  --wrap:1200px;
  --pad:24px;
  --radius:4px;
  --shadow:0 1px 2px rgba(8,25,44,.06),0 8px 24px rgba(8,25,44,.07);
  --shadow-lg:0 2px 4px rgba(8,25,44,.08),0 20px 48px rgba(8,25,44,.12);
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:var(--ff-body);font-size:16px;line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--blue-600);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{font-family:var(--ff-head);font-weight:700;line-height:1.08;margin:0 0 .5em;letter-spacing:.005em}
h1{font-size:clamp(38px,5.6vw,68px)}
h2{font-size:clamp(30px,3.6vw,44px)}
h3{font-size:clamp(21px,2.1vw,26px)}
h4{font-size:19px}
p{margin:0 0 1em}
ul{margin:0 0 1em;padding-left:1.15em}
li{margin-bottom:.3em}
:focus-visible{outline:3px solid var(--blue-light);outline-offset:2px}

.wrap{max-width:var(--wrap);margin:0 auto;padding:0 var(--pad)}
.wrap-narrow{max-width:900px;margin:0 auto;padding:0 var(--pad)}
.section{padding:76px 0}
.section--tight{padding:52px 0}
.section--soft{background:var(--soft)}
.section--dark{background:var(--navy);color:#E8EFF7}
.section--dark h2,.section--dark h3{color:#fff}
.section--dark a{color:var(--blue-light)}

.eyebrow{
  font-family:var(--ff-body);font-size:12px;font-weight:700;letter-spacing:.16em;
  text-transform:uppercase;color:var(--blue);margin:0 0 12px;
}
.section--dark .eyebrow{color:var(--blue-light)}
.lead{font-size:clamp(17px,1.6vw,19px);color:var(--steel);max-width:62ch}
.section--dark .lead{color:#B9CBDD}
.section-head{max-width:70ch;margin-bottom:40px}
.rule{height:3px;width:56px;background:var(--blue);border:0;margin:0 0 20px}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:9px;
  font-family:var(--ff-body);font-size:14px;font-weight:600;letter-spacing:.02em;
  padding:13px 24px;border-radius:var(--radius);border:1.5px solid transparent;
  cursor:pointer;transition:background .15s,color .15s,border-color .15s;
  text-decoration:none;
}
.btn:hover{text-decoration:none}
.btn--primary{background:var(--blue);color:#fff}
.btn--primary:hover{background:var(--blue-600);color:#fff}
.btn--ghost{border-color:rgba(255,255,255,.5);color:#fff}
.btn--ghost:hover{background:rgba(255,255,255,.12);color:#fff}
.btn--outline{border-color:var(--line-strong);color:var(--navy);background:#fff}
.btn--outline:hover{border-color:var(--blue);color:var(--blue-600)}
.btn svg{width:15px;height:15px;flex:none}

/* ---------- Header ---------- */
.header{
  position:sticky;top:0;z-index:60;background:rgba(255,255,255,.97);
  border-bottom:1px solid var(--line);backdrop-filter:saturate(160%) blur(8px);
}
.header__inner{display:flex;align-items:center;gap:22px;height:78px}
.brand{display:flex;align-items:center;gap:11px;flex:none}
.brand:hover{text-decoration:none}
.brand img.brand__mark{height:46px;width:auto}
.brand img.brand__word{height:26px;width:auto}
.nav{margin-left:auto;display:flex;align-items:center;gap:4px}
.nav a{
  font-size:14px;font-weight:600;color:var(--navy);padding:9px 13px;border-radius:var(--radius);
  letter-spacing:.01em;white-space:nowrap;
}
.nav a:hover{background:var(--soft-2);text-decoration:none}
.nav a.is-active{color:var(--blue-600);box-shadow:inset 0 -2px 0 var(--blue)}
.header__cta{margin-left:8px}

.langs{display:flex;align-items:center;gap:0;border:1px solid var(--line-strong);border-radius:var(--radius);overflow:hidden;flex:none}
.langs button{
  font-family:var(--ff-body);font-size:11.5px;font-weight:700;letter-spacing:.08em;
  padding:7px 10px;background:#fff;border:0;color:var(--steel);cursor:pointer;
  border-right:1px solid var(--line);
}
.langs button:last-child{border-right:0}
.langs button:hover{background:var(--soft-2);color:var(--navy)}
.langs button[aria-pressed="true"]{background:var(--navy);color:#fff}

.burger{
  display:none;margin-left:auto;background:#fff;border:1px solid var(--line-strong);
  border-radius:var(--radius);width:44px;height:40px;cursor:pointer;padding:0;
}
.burger span{display:block;width:20px;height:2px;background:var(--navy);margin:4px auto}

/* ---------- Hero ---------- */
.hero{position:relative;background:var(--ink);color:#fff;overflow:hidden}
.hero__bg{position:absolute;inset:0}
.hero__bg img{width:100%;height:100%;object-fit:cover;opacity:.42}
.hero__bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(105deg,rgba(8,25,44,.94) 0%,rgba(8,25,44,.78) 46%,rgba(14,44,75,.42) 100%);
}
.hero__inner{position:relative;padding:104px 0 92px;max-width:820px}
.hero h1{color:#fff;margin-bottom:20px}
.hero h1 em{font-style:normal;color:var(--blue-light)}
.hero__sub{font-size:clamp(17px,1.8vw,20px);color:#C9DAEA;max-width:60ch;margin-bottom:32px}
.hero__actions{display:flex;flex-wrap:wrap;gap:12px}
.hero__facts{
  position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  background:rgba(255,255,255,.16);border-top:1px solid rgba(255,255,255,.16);
}
.hero__facts div{background:rgba(8,25,44,.72);padding:22px var(--pad)}
.hero__facts b{display:block;font-family:var(--ff-head);font-size:30px;color:#fff;line-height:1.1}
.hero__facts span{font-size:12.5px;letter-spacing:.09em;text-transform:uppercase;color:#9FB6CC}

/* page hero (inner pages) */
.phero{background:var(--navy);color:#fff;position:relative;overflow:hidden}
.phero::after{
  content:"";position:absolute;right:-90px;top:-140px;width:420px;height:420px;border-radius:50%;
  border:70px solid rgba(255,255,255,.045);
}
.phero__inner{position:relative;padding:62px 0 58px;max-width:780px}
.phero h1{color:#fff;font-size:clamp(34px,4.6vw,54px);margin-bottom:14px}
.phero p{color:#B9CBDD;font-size:17px;max-width:62ch;margin:0}
.crumb{font-size:12.5px;letter-spacing:.1em;text-transform:uppercase;color:#7E9AB6;margin-bottom:14px}
.crumb a{color:#7E9AB6}

/* ---------- Grids & cards ---------- */
.grid{display:grid;gap:22px}
/* grid and flex items must be allowed to shrink below their content width,
   otherwise a wide table pushes the whole page sideways on small screens */
.grid > *,.pblock__grid > *,.contact-grid > *,.footer__grid > *,.steps > *{min-width:0}
.table-scroll{max-width:100%}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}

.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:26px;transition:border-color .15s,box-shadow .15s,transform .15s;
}
.card:hover{border-color:var(--line-strong);box-shadow:var(--shadow)}
.card h3{margin-bottom:8px}
.card p{color:var(--steel);font-size:15px;margin-bottom:0}
.card__num{
  font-family:var(--ff-head);font-size:15px;font-weight:700;color:var(--blue);
  letter-spacing:.1em;display:block;margin-bottom:10px;
}

.pcard{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);overflow:hidden;transition:border-color .15s,box-shadow .15s;
}
.pcard:hover{border-color:var(--blue-light);box-shadow:var(--shadow);text-decoration:none}
.pcard__fig{background:var(--soft-2);padding:16px;display:flex;align-items:center;justify-content:center;border-bottom:1px solid var(--line)}
.pcard__fig img{width:100%;max-width:250px}
.pcard__body{padding:20px 22px 22px}
.pcard__body h3{font-size:21px;margin-bottom:6px;color:var(--navy)}
.pcard__body p{font-size:14.5px;color:var(--steel);margin-bottom:10px}
.pcard__meta{font-size:12.5px;letter-spacing:.06em;text-transform:uppercase;color:var(--blue);font-weight:700}

.tile{border-left:3px solid var(--blue);padding:2px 0 2px 18px}
.tile h4{margin-bottom:6px;font-family:var(--ff-body);font-size:16px;font-weight:700}
.tile p{font-size:14.5px;color:var(--steel);margin:0}

/* ---------- Product block (valves page) ---------- */
.pblock{border-top:1px solid var(--line);padding:60px 0}
.pblock:first-of-type{border-top:0}
.pblock__grid{display:grid;grid-template-columns:minmax(0,1fr) 380px;gap:48px;align-items:start}
.pblock__fig{
  background:var(--soft);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px;position:sticky;top:100px;
}
.pblock__fig img{width:100%}
.pblock__fig figcaption{
  font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--steel-light);
  margin-top:12px;text-align:center;
}
.pblock h2{margin-bottom:6px}
.pblock__alt{
  font-family:var(--ff-body);font-size:13px;font-weight:600;letter-spacing:.05em;
  text-transform:uppercase;color:var(--steel-light);margin:0 0 16px;
}

/* ---------- Tables ---------- */
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;margin:0 0 14px}
table.spec{border-collapse:collapse;width:100%;font-size:14.5px;min-width:520px;background:#fff}
table.spec th,table.spec td{border:1px solid var(--line);padding:11px 14px;text-align:left;vertical-align:top}
table.spec th{
  width:33%;background:var(--soft);font-weight:600;color:var(--navy);
  font-size:13px;letter-spacing:.02em;
}
table.spec caption{
  caption-side:top;text-align:left;font-size:12px;letter-spacing:.11em;text-transform:uppercase;
  color:var(--steel-light);font-weight:700;padding-bottom:9px;
}
.note{font-size:13px;color:var(--steel-light);margin:0}

/* ---------- Strips ---------- */
.strip{background:var(--soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:26px 0}
.strip__items{display:flex;flex-wrap:wrap;gap:10px 30px;align-items:center;justify-content:center}
.strip__items span{
  font-size:12.5px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--steel);
}

.cta{background:var(--navy);color:#fff;padding:64px 0}
.cta__inner{display:flex;flex-wrap:wrap;gap:26px;align-items:center;justify-content:space-between}
.cta h2{color:#fff;margin-bottom:6px}
.cta p{color:#B9CBDD;margin:0;max-width:52ch}

/* ---------- Steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line)}
.steps > div{background:#fff;padding:26px 24px}
.steps b{
  display:block;font-family:var(--ff-head);font-size:34px;color:var(--blue-light);line-height:1;margin-bottom:10px;
}
.steps h4{margin-bottom:6px}
.steps p{font-size:14.5px;color:var(--steel);margin:0}

/* ---------- Contact ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:start}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;font-weight:600;color:var(--navy);margin-bottom:6px}
.field input,.field textarea,.field select{
  width:100%;font-family:var(--ff-body);font-size:15px;color:var(--ink);
  padding:11px 13px;border:1px solid var(--line-strong);border-radius:var(--radius);background:#fff;
}
.field textarea{min-height:150px;resize:vertical}
.field input:focus,.field textarea:focus,.field select:focus{border-color:var(--blue);outline:none;box-shadow:0 0 0 3px rgba(26,111,196,.15)}
.infolist{list-style:none;padding:0;margin:0}
.infolist li{display:flex;gap:14px;padding:16px 0;border-bottom:1px solid var(--line)}
.infolist li:first-child{padding-top:0}
.infolist svg{width:19px;height:19px;flex:none;color:var(--blue);margin-top:3px}
.infolist b{display:block;font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--steel-light);font-weight:700}

.placeholder{
  background:#FFF8E6;border:1px solid #F0DCA6;border-left:3px solid #D9A520;
  padding:14px 18px;border-radius:var(--radius);font-size:13.5px;color:#6B5411;margin:0 0 26px;
}
.placeholder b{color:#4E3D08}

/* ---------- Footer ---------- */
.footer{background:var(--ink);color:#93A9BF;padding:60px 0 26px;font-size:14.5px}
.footer h4{
  color:#fff;font-family:var(--ff-body);font-size:12px;letter-spacing:.13em;text-transform:uppercase;margin-bottom:14px;
}
.footer a{color:#93A9BF}
.footer a:hover{color:#fff}
.footer__grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px}
.footer ul{list-style:none;padding:0;margin:0}
.footer li{margin-bottom:8px}
.footer__word{font-family:var(--ff-head);font-size:40px;color:#fff;line-height:1;margin:0 0 10px;letter-spacing:.01em}
.footer__word span{color:var(--blue-light)}
.footer__tag{font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;color:#6E86A0;margin-bottom:16px}
.footer__bottom{
  border-top:1px solid rgba(255,255,255,.1);margin-top:44px;padding-top:20px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:#6E86A0;
}

/* ---------- Utility ---------- */
.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}
.skip{position:absolute;left:-9999px;top:0;background:#fff;padding:12px 18px;z-index:100}
.skip:focus{left:8px;top:8px}
.mt-0{margin-top:0}.mb-0{margin-bottom:0}

/* ---------- Responsive ---------- */
@media (max-width:1080px){
  .pblock__grid{grid-template-columns:minmax(0,1fr) 320px;gap:34px}
  .footer__grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:900px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .hero__facts{grid-template-columns:repeat(2,1fr)}
  .contact-grid{grid-template-columns:1fr;gap:40px}
  .pblock__grid{grid-template-columns:1fr}
  .pblock__fig{position:static;max-width:460px}

  .burger{display:block}
  .nav{
    position:absolute;left:0;right:0;top:78px;background:#fff;border-bottom:1px solid var(--line);
    flex-direction:column;align-items:stretch;gap:0;padding:8px var(--pad) 18px;display:none;
    box-shadow:var(--shadow);
  }
  .nav.is-open{display:flex}
  .nav a{padding:13px 4px;border-bottom:1px solid var(--line);border-radius:0}
  .nav a.is-active{box-shadow:none;background:var(--soft-2)}
  .header__cta{margin:14px 0 0}
  .header__inner{gap:12px}
}
@media (max-width:640px){
  :root{--pad:18px}
  .section{padding:52px 0}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .hero__inner{padding:72px 0 62px}
  .footer__grid{grid-template-columns:1fr}
  .brand img.brand__word{display:none}
  table.spec th{width:44%}
  table.spec{min-width:460px}
  .hero__facts b{font-size:25px}
  .hero__facts div{padding:18px var(--pad)}
}

@media print{
  .header,.footer,.cta,.burger,.langs{display:none}
  body{font-size:12pt}
}