/* American Valve & Hydrant — layout + responsive helpers */
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:#fff;color:var(--text-body);font-family:var(--font-sans)}
a{color:var(--text-link)}
a:hover{color:var(--text-link-hover)}
img{max-width:100%}

.avh-container{max-width:1200px;margin:0 auto;padding:0 24px;width:100%}
.avh-narrow{max-width:940px;margin:0 auto;padding:0 24px;width:100%}

/* split image + text */
.avh-grid2{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.avh-grid2.top{align-items:start}
/* product cards 2-up */
.avh-prodgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;row-gap:32px}
.avh-grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.avh-tiles{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.avh-tile{width:100%;height:170px;object-fit:cover;border-radius:2px;display:block}

.avh-hero{position:relative;min-height:520px;display:flex;align-items:center;overflow:hidden}
.avh-hero--page{min-height:340px}
.avh-hero__scrim{position:absolute;inset:0;background:var(--scrim-dark)}
.avh-hero__img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}

.avh-section{padding:72px 0}
.avh-band-dark{background:var(--color-ink)}
.avh-band-alt{background:var(--surface-alt)}

.avh-eyebrow-yellow{color:var(--color-yellow);font-family:var(--font-display);font-weight:700;text-transform:uppercase;letter-spacing:.12em;font-size:13px;margin-bottom:10px}

/* header */
.avh-header{background:#fff;border-bottom:1px solid var(--border);position:sticky;top:0;z-index:50}
.avh-utility{max-width:1200px;margin:0 auto;padding:10px 24px;display:flex;justify-content:flex-end;align-items:center;gap:20px;font-size:12px;font-weight:700;letter-spacing:.06em;text-transform:uppercase}
.avh-utility a{color:var(--color-ink);text-decoration:none}
.avh-utility a.red{color:var(--color-red)}
.avh-mainbar{max-width:1200px;margin:0 auto;padding:0 24px 16px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.avh-nav{display:flex;gap:34px;font-family:var(--font-display);text-transform:uppercase;font-weight:600;font-size:17px;letter-spacing:.03em}
.avh-nav a{color:var(--color-ink);text-decoration:none;padding-bottom:4px;border-bottom:3px solid transparent;white-space:nowrap}
.avh-nav a:hover{color:var(--color-red)}
.avh-nav a.active{color:var(--color-red);border-bottom-color:var(--color-red)}
.avh-menu-btn{display:none;background:none;border:none;cursor:pointer;padding:6px;flex:0 0 auto}
.avh-menu-btn span{display:block;width:26px;height:3px;background:var(--color-ink);margin:5px 0}

/* footer */
.avh-footer-grid{max-width:1200px;margin:0 auto;padding:0 24px;display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px}
.avh-cta-band{display:flex;align-items:center;justify-content:space-between;gap:40px}

/* belief list */
.avh-beliefs{display:grid;grid-template-columns:1fr 1fr;gap:6px 40px;list-style:none;padding:0;margin:0}
.avh-beliefs li{position:relative;padding:8px 0 8px 26px;font-size:15px;line-height:1.5;border-bottom:1px solid var(--border)}
.avh-beliefs li::before{content:"";position:absolute;left:0;top:15px;width:9px;height:9px;background:var(--color-red)}

/* roomier line spacing for all display headings (per hero spacing) */
:root{--display-leading:1.18}

/* fluid display type so DS headings scale down on tablet/mobile */
@media(max-width:900px){:root{--fs-display-1:46px;--fs-display-2:36px;--fs-display-3:28px}}
@media(max-width:600px){:root{--fs-display-1:34px;--fs-display-2:28px;--fs-display-3:23px}}
.avh-hero-title{font-size:clamp(30px,6vw,50px);line-height:calc(1.08em - 14px)}

/* product-card icon disc: sit inside the photo rather than hanging off the edge */
.avh-prodgrid img[style*="92px"]{right:auto !important;left:72px !important}

@media(max-width:900px){
  .avh-grid2,.avh-grid3{grid-template-columns:1fr;gap:36px}
  .avh-prodgrid{grid-template-columns:1fr 1fr;gap:24px}
  .avh-footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .avh-cta-band{flex-direction:column;align-items:flex-start}
  .avh-cta-band img{height:100px !important}
  .avh-hero{min-height:440px}
  .avh-beliefs{grid-template-columns:1fr}
  .avh-nav{position:absolute;top:100%;left:0;right:0;flex-direction:column;gap:0;background:#fff;border-top:1px solid var(--border);box-shadow:var(--shadow-md);padding:8px 0;display:none}
  .avh-nav.open{display:flex}
  .avh-nav a{padding:14px 24px;border-bottom:1px solid var(--border);font-size:18px}
  .avh-nav a.active{border-bottom-color:var(--border);background:var(--surface-alt)}
  .avh-menu-btn{display:block}
  .avh-header{position:relative}
}
@media(max-width:600px){
  .avh-utility{gap:12px;flex-wrap:wrap;justify-content:center;font-size:11px}
  .avh-footer-grid{grid-template-columns:1fr}
  .avh-prodgrid{grid-template-columns:1fr}
  .avh-section{padding:52px 0}
  .avh-tiles{grid-template-columns:1fr 1fr}
}

/* history timeline */
.avh-history-cols{columns:2;column-gap:48px;max-width:1000px;margin:0 auto}
.avh-history-cols p{break-inside:avoid}
.avh-tl-nav{display:flex;align-items:center;justify-content:center;gap:10px;margin:34px 0 0;flex-wrap:wrap}
.avh-tl-arrow{width:44px;height:44px;border-radius:50%;border:1px solid rgba(255,255,255,.5);background:transparent;color:#fff;display:inline-flex;align-items:center;justify-content:center;cursor:pointer;transition:background .2s cubic-bezier(.4,0,.2,1),border-color .2s cubic-bezier(.4,0,.2,1)}
.avh-tl-arrow:hover:not(:disabled){background:var(--color-red);border-color:var(--color-red)}
.avh-tl-arrow:disabled{opacity:.3;cursor:default}
.avh-tl-year{background:transparent;border:none;border-bottom:3px solid transparent;padding:10px 18px 8px;font-family:var(--font-sans);font-weight:700;font-size:16px;letter-spacing:.04em;color:rgba(255,255,255,.45);cursor:pointer;transition:color .2s cubic-bezier(.4,0,.2,1)}
.avh-tl-year:hover{color:#fff}
.avh-tl-year.active{color:#fff;border-bottom-color:var(--color-red)}
.avh-tl-rule{border-top:1px solid rgba(255,255,255,.25);margin:26px 0 40px}
.avh-tl-big{font-family:var(--font-display);font-weight:700;font-size:clamp(64px,9vw,120px);line-height:1;color:#fff;margin-bottom:18px}
@media (max-width:700px){.avh-history-cols{columns:1}.avh-tl-year{padding:10px 10px 8px;font-size:14px}}

/* mobile scaling refinements */
@media(max-width:600px){
  .avh-grid2 img,.avh-grid2 a>img{height:auto !important;max-height:280px;aspect-ratio:4/3;object-fit:cover}
  .avh-grid2>div>div>img{max-height:220px}
  .avh-tile{height:120px}
  .avh-hero{min-height:380px;padding:48px 0}
  .avh-hero--page{min-height:280px;padding:36px 0}
  .avh-tl-nav{gap:4px;margin-top:24px}
  .avh-tl-arrow{width:38px;height:38px}
  .avh-tl-rule{margin:18px 0 28px}
  .avh-tl-big{margin-bottom:12px}
  .avh-narrow,.avh-container{padding-left:18px;padding-right:18px}
  h1,h2,h3{overflow-wrap:break-word}
}
@media(max-width:400px){.avh-tl-year{padding:8px 6px;font-size:13px}.avh-tl-arrow{width:34px;height:34px}}