/* ==========================================================================
   Walker Pools — site.css
   Palette derived from the build itself: wet gunite, oxidized rebar, Katy clay.
   ========================================================================== */

:root{
  --ink:#16191c;
  --steel:#2e353b;
  --steel-2:#454e56;
  --concrete:#d9d6d0;
  --bone:#f3f2ef;
  --rust:#a34428;
  --rust-lt:#c65b35;
  --water:#1c6f80;
  --line:rgba(255,255,255,.14);
  --line-dk:rgba(22,25,28,.16);

  --display:"Archivo",system-ui,sans-serif;
  --body:"IBM Plex Sans",system-ui,sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,monospace;

  --wrap:1220px;
  --gut:clamp(20px,5vw,64px);
  --sp:clamp(56px,9vw,132px);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bone);color:var(--ink);
  font-family:var(--body);font-size:17px;line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit}

.wrap{max-width:var(--wrap);margin-inline:auto;padding-inline:var(--gut)}
.sec{padding-block:var(--sp)}
.sec--ink{background:var(--ink);color:var(--concrete)}
.sec--steel{background:var(--steel);color:var(--concrete)}
.sec--concrete{background:var(--concrete)}

/* ---------- type ---------- */
h1,h2,h3,h4{font-family:var(--display);font-weight:800;margin:0;line-height:.98;
  letter-spacing:-.015em;font-stretch:112%;text-transform:uppercase}
h1{font-size:clamp(2.6rem,7vw,5.1rem)}
h2{font-size:clamp(2rem,4.6vw,3.4rem)}
h3{font-size:clamp(1.25rem,2vw,1.6rem);letter-spacing:0}
h4{font-size:1.02rem;letter-spacing:.02em}
p{margin:0 0 1.1em}
.lede{font-size:clamp(1.08rem,1.5vw,1.28rem);line-height:1.6;max-width:62ch}
.measure{max-width:70ch}

/* stamped drawing callout — the structural eyebrow used site-wide */
.stamp{
  font-family:var(--mono);font-size:.7rem;font-weight:600;
  letter-spacing:.2em;text-transform:uppercase;
  display:inline-flex;align-items:center;gap:.6rem;margin-bottom:1.4rem;color:var(--rust-lt)
}
.stamp::before{content:"";width:34px;height:2px;background:currentColor}
.sec--concrete .stamp,.on-light .stamp{color:var(--rust)}

.rule{height:3px;background:var(--ink);border:0;margin:0 0 2.4rem}
.sec--ink .rule,.sec--steel .rule{background:var(--rust)}

/* ---------- header ---------- */
.hdr{position:sticky;top:0;z-index:60;background:var(--ink);border-bottom:1px solid var(--line)}
.hdr__in{display:flex;align-items:center;gap:1.5rem;min-height:74px}
.brand{font-family:var(--display);font-weight:800;font-stretch:118%;text-transform:uppercase;
  color:var(--bone);text-decoration:none;font-size:1.32rem;letter-spacing:-.01em;line-height:1}
.brand span{color:var(--rust-lt)}
.nav{margin-left:auto;display:flex;gap:1.35rem;align-items:center}
.nav a{font-family:var(--mono);font-size:.73rem;letter-spacing:.1em;text-transform:uppercase;white-space:nowrap;
  color:var(--concrete);text-decoration:none;padding-block:.4rem;border-bottom:2px solid transparent}
.nav a:hover,.nav a[aria-current="page"]{color:#fff;border-bottom-color:var(--rust)}
.hdr__tel{font-family:var(--display);font-weight:800;font-stretch:110%;color:var(--bone);
  text-decoration:none;font-size:1.05rem;white-space:nowrap}
.hdr__tel:hover{color:var(--rust-lt)}
.burger{display:none;margin-left:auto;background:none;border:1px solid var(--line);
  color:var(--bone);padding:.55rem .8rem;font-family:var(--mono);font-size:.72rem;
  letter-spacing:.12em;text-transform:uppercase;cursor:pointer}

@media(max-width:940px){
  .nav{position:fixed;inset:74px 0 auto;background:var(--ink);flex-direction:column;
    align-items:stretch;gap:0;padding:.5rem var(--gut) 1.6rem;border-bottom:1px solid var(--line);
    display:none}
  .nav.open{display:flex}
  .nav a{padding:.85rem 0;border-bottom:1px solid var(--line)}
  .burger{display:block}
  /* phone lives in the sticky call bar on mobile — no need to duplicate it here */
  .hdr__tel{display:none}
  .hdr__in{gap:1rem}
}

/* ---------- buttons ---------- */
.btn{display:inline-block;font-family:var(--mono);font-size:.78rem;font-weight:600;
  letter-spacing:.14em;text-transform:uppercase;text-decoration:none;padding:1.05rem 1.9rem;
  border:2px solid var(--rust);background:var(--rust);color:#fff;cursor:pointer;
  transition:background .18s,color .18s,transform .18s}
.btn:hover{background:var(--rust-lt);border-color:var(--rust-lt);transform:translateY(-2px)}
.btn--ghost{background:transparent;color:inherit;border-color:currentColor}
.btn--ghost:hover{background:var(--rust);border-color:var(--rust);color:#fff}
.btns{display:flex;flex-wrap:wrap;gap:.9rem;margin-top:2rem}

/* ---------- hero ---------- */
.hero{background:var(--ink);color:var(--bone);position:relative;overflow:hidden;
  padding-block:clamp(56px,9vw,104px) 0}
.hero__photo{position:absolute;inset:0;background:#0f1113 center/cover no-repeat;opacity:.26;
  filter:grayscale(.4) contrast(1.08)}
.hero__in{position:relative;z-index:2}
.hero h1{max-width:16ch}
.hero h1 em{font-style:normal;color:var(--rust-lt)}
.hero .lede{margin-top:1.7rem;color:#cfcbc4}

/* signature: shell cross-section */
.xsec{margin-top:clamp(38px,6vw,64px);position:relative;z-index:2}
.xsec svg{width:100%;height:auto;display:block;overflow:visible}
@media(max-width:640px){.xsec{margin-left:calc(var(--gut)*-1);margin-right:calc(var(--gut)*-1);width:100vw}}
.xsec-line{fill:none;stroke:var(--rust);stroke-width:2.5;
  stroke-dasharray:1400;stroke-dashoffset:1400;animation:draw 2.1s .25s ease-out forwards}
.xsec-grid{fill:none;stroke:rgba(217,214,208,.26);stroke-width:1}
.xsec-dim{stroke:rgba(217,214,208,.5);stroke-width:1}
.xsec-txt{font-family:var(--mono);font-size:12px;fill:var(--concrete);letter-spacing:.08em}
.xsec-txt--r{fill:var(--rust-lt)}
.xsec-water{fill:rgba(28,111,128,.3)}
@keyframes draw{to{stroke-dashoffset:0}}

/* ---------- trust strip ---------- */
.strip{background:var(--rust);color:#fff}
.strip__in{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:rgba(255,255,255,.28)}
.strip__i{background:var(--rust);padding:1.5rem 1.3rem}
.strip__i b{display:block;font-family:var(--display);font-weight:800;font-stretch:112%;
  font-size:1.5rem;line-height:1;text-transform:uppercase}
.strip__i span{font-family:var(--mono);font-size:.68rem;letter-spacing:.14em;
  text-transform:uppercase;opacity:.86;display:block;margin-top:.45rem}
@media(max-width:760px){.strip__in{grid-template-columns:repeat(2,1fr)}}

/* ---------- grids & cards ---------- */
.grid{display:grid;gap:2px;background:var(--line-dk)}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.sec--ink .grid,.sec--steel .grid{background:var(--line)}
@media(max-width:900px){.g3{grid-template-columns:1fr}.g2{grid-template-columns:1fr}}

.card{background:var(--bone);padding:2.3rem 2rem;display:flex;flex-direction:column}
.sec--ink .card{background:var(--ink)}
.sec--steel .card{background:var(--steel)}
.sec--concrete .card{background:var(--concrete)}
.card h3{margin-bottom:.85rem}
.card p{font-size:.97rem;opacity:.88}
.card__more{margin-top:auto;padding-top:1.2rem;font-family:var(--mono);font-size:.74rem;
  letter-spacing:.14em;text-transform:uppercase;color:var(--rust);text-decoration:none;font-weight:600}
.sec--ink .card__more,.sec--steel .card__more{color:var(--rust-lt)}
.card__more:hover{text-decoration:underline}

/* split layout */
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(32px,5vw,72px);align-items:start}
.split--narrow{grid-template-columns:minmax(0,1fr) minmax(0,.85fr)}
@media(max-width:900px){.split,.split--narrow{grid-template-columns:1fr}}

/* ---------- spec table (used for pool specs / comparisons) ---------- */
.spec{width:100%;border-collapse:collapse;font-size:.94rem}
.spec th,.spec td{text-align:left;padding:.95rem 1rem;border-bottom:1px solid var(--line-dk);
  vertical-align:top}
.sec--ink .spec th,.sec--ink .spec td{border-color:var(--line)}
.spec th{font-family:var(--mono);font-size:.7rem;letter-spacing:.14em;text-transform:uppercase;
  font-weight:600;width:34%;color:var(--rust)}
.sec--ink .spec th{color:var(--rust-lt)}
.spec tr:last-child th,.spec tr:last-child td{border-bottom:0}

/* ---------- sequence (build process — order is real information) ---------- */
.seq{border-top:2px solid var(--line)}
.seq__i{display:grid;grid-template-columns:88px 1fr;gap:1.6rem;padding:1.9rem 0;
  border-bottom:1px solid var(--line);align-items:start}
.seq__n{font-family:var(--display);font-weight:800;font-stretch:118%;font-size:2.2rem;
  line-height:1;color:var(--rust-lt)}
.seq__i h3{margin-bottom:.5rem}
.seq__i p{margin:0;opacity:.85;font-size:.97rem}
.seq__d{font-family:var(--mono);font-size:.7rem;letter-spacing:.13em;text-transform:uppercase;
  opacity:.6;margin-top:.55rem;display:block}
@media(max-width:640px){.seq__i{grid-template-columns:56px 1fr;gap:1rem}.seq__n{font-size:1.6rem}}

/* ---------- gallery ---------- */
.gal{display:grid;grid-template-columns:repeat(3,1fr);gap:2px}
.gal figure{margin:0;position:relative;aspect-ratio:4/3;background:var(--steel);overflow:hidden}
.gal img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.gal figure:hover img{transform:scale(1.04)}
.gal figcaption{position:absolute;left:0;bottom:0;right:0;padding:1.4rem 1.1rem .95rem;
  font-family:var(--mono);font-size:.71rem;letter-spacing:.1em;text-transform:uppercase;color:#fff;
  background:linear-gradient(transparent,rgba(0,0,0,.82))}
.gal .ph{position:absolute;inset:0;display:grid;place-content:center;text-align:center;
  font-family:var(--mono);font-size:.68rem;letter-spacing:.14em;text-transform:uppercase;
  color:rgba(217,214,208,.45);padding:1rem;
  background:repeating-linear-gradient(45deg,#2e353b,#2e353b 12px,#333b42 12px,#333b42 24px)}
@media(max-width:820px){.gal{grid-template-columns:repeat(2,1fr)}}

/* ---------- faq ---------- */
.faq details{border-bottom:1px solid var(--line-dk);padding:1.35rem 0}
.sec--ink .faq details{border-color:var(--line)}
.faq summary{font-family:var(--display);font-weight:800;font-stretch:108%;text-transform:uppercase;
  font-size:1.08rem;cursor:pointer;list-style:none;display:flex;gap:1rem;align-items:flex-start}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";margin-left:auto;color:var(--rust);font-size:1.5rem;line-height:.8}
.faq details[open] summary::after{content:"–"}
.faq details p{margin:.95rem 0 0;opacity:.88;max-width:74ch;font-size:.98rem}

/* ---------- form ---------- */
.form{display:grid;gap:1.05rem}
.field label{display:block;font-family:var(--mono);font-size:.7rem;letter-spacing:.14em;
  text-transform:uppercase;margin-bottom:.45rem;font-weight:600}
.field input,.field select,.field textarea{
  width:100%;padding:.9rem 1rem;font:inherit;font-size:1rem;background:#fff;color:var(--ink);
  border:2px solid rgba(22,25,28,.22);border-radius:0}
.field input:focus,.field select:focus,.field textarea:focus{outline:3px solid var(--rust);outline-offset:1px}
.f2{display:grid;grid-template-columns:1fr 1fr;gap:1.05rem}
@media(max-width:600px){.f2{grid-template-columns:1fr}}
.form__note{font-family:var(--mono);font-size:.71rem;letter-spacing:.06em;opacity:.7;line-height:1.6}

/* ---------- area chips ---------- */
.chips{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:1.6rem;padding:0;list-style:none}
.chips a{display:block;font-family:var(--mono);font-size:.74rem;letter-spacing:.1em;
  text-transform:uppercase;padding:.6rem 1rem;border:1px solid var(--line-dk);text-decoration:none}
.sec--ink .chips a{border-color:var(--line)}
.chips a:hover{background:var(--rust);color:#fff;border-color:var(--rust)}

/* ---------- reviews ---------- */
.rev{background:var(--bone);padding:2.2rem 2rem;display:flex;flex-direction:column;gap:1rem}
.rev p{font-size:1.02rem;margin:0}
.rev cite{font-family:var(--mono);font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;
  font-style:normal;opacity:.7;margin-top:auto}
.stars{color:var(--rust);letter-spacing:.18em;font-size:.95rem}

/* ---------- breadcrumb ---------- */
.crumb{font-family:var(--mono);font-size:.7rem;letter-spacing:.12em;text-transform:uppercase;
  padding-block:1.1rem;opacity:.72}
.crumb a{text-decoration:none}
.crumb a:hover{color:var(--rust)}

/* ---------- cta band ---------- */
.band{background:var(--rust);color:#fff;text-align:center}
.band h2{max-width:20ch;margin-inline:auto}
.band p{max-width:56ch;margin-inline:auto;opacity:.94}
.band .btns{justify-content:center}
.band .btn{background:var(--ink);border-color:var(--ink)}
.band .btn:hover{background:#000;border-color:#000}
.band .btn--ghost{background:transparent;border-color:#fff}
.band .btn--ghost:hover{background:#fff;color:var(--rust)}

/* ---------- footer ---------- */
.ftr{background:var(--ink);color:var(--concrete);padding-block:clamp(48px,6vw,76px) 2rem;font-size:.93rem}
.ftr__g{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:2.4rem}
@media(max-width:860px){.ftr__g{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.ftr__g{grid-template-columns:1fr}}
.ftr h4{color:#fff;margin-bottom:1.1rem;font-family:var(--mono);font-size:.7rem;
  letter-spacing:.16em;font-weight:600}
.ftr ul{list-style:none;margin:0;padding:0;display:grid;gap:.6rem}
.ftr a{text-decoration:none;opacity:.82}
.ftr a:hover{opacity:1;color:var(--rust-lt)}
.ftr address{font-style:normal;line-height:1.9;opacity:.82}
.ftr__btm{margin-top:3rem;padding-top:1.5rem;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:1rem;justify-content:space-between;
  font-family:var(--mono);font-size:.68rem;letter-spacing:.1em;text-transform:uppercase;opacity:.6}

/* ---------- sticky mobile call bar ---------- */
.callbar{display:none}
@media(max-width:760px){
  .callbar{display:grid;grid-template-columns:1fr 1fr;position:fixed;bottom:0;left:0;right:0;z-index:70}
  .callbar a{padding:1.05rem;text-align:center;text-decoration:none;font-family:var(--mono);
    font-size:.76rem;letter-spacing:.12em;text-transform:uppercase;font-weight:600}
  .callbar a:first-child{background:var(--ink);color:#fff}
  .callbar a:last-child{background:var(--rust);color:#fff}
  body{padding-bottom:56px}
}

/* ---------- a11y ---------- */
.skip{position:absolute;left:-9999px}
.skip:focus{left:var(--gut);top:.5rem;z-index:99;background:#fff;color:var(--ink);padding:.7rem 1.1rem}
:focus-visible{outline:3px solid var(--rust);outline-offset:2px}
.vh{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s,transform .7s}
.reveal.in{opacity:1;transform:none}

@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important}
  .xsec-line{stroke-dashoffset:0}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}