/* ==========================================================================
   Apex Sauna Steam — PK Technical Services Co.
   Design system: charred timber ground, ember heat, vapour blue.
   Dry-heat services carry amber. Wet-steam services carry blue.
   ========================================================================== */

:root{
  --ink:#16110E;
  --ink-2:#201812;
  --ink-3:#2C2119;
  --bone:#F5EEE5;
  --bone-dim:#CFC1B0;
  --muted:#A28F7C;
  --ember:#E39B3D;
  --ember-deep:#B96F1E;
  --vapour:#57A7D4;
  --brand-red:#E1382A;
  --brand-blue:#1B7FC4;
  --line:rgba(245,238,229,.13);
  --line-strong:rgba(245,238,229,.28);

  --display:"Archivo",system-ui,sans-serif;
  --body:"Newsreader",Georgia,serif;

  --wrap:1220px;
  --gut:clamp(20px,5vw,56px);
  --sp:clamp(64px,8vw,116px);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{animation-duration:.01ms!important;transition-duration:.01ms!important}
}
body{
  margin:0;background:var(--ink);color:var(--bone);
  font-family:var(--body);font-size:1.0625rem;line-height:1.72;
  font-optical-sizing:auto;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit}
:focus-visible{outline:2px solid var(--ember);outline-offset:3px;border-radius:2px}

h1,h2,h3,h4,.u-display{
  font-family:var(--display);font-weight:700;line-height:1.08;
  letter-spacing:-.022em;margin:0 0 .5em;font-variation-settings:"wdth" 105;
}
h1{font-size:clamp(2.3rem,5.4vw,4.05rem);font-weight:800;letter-spacing:-.032em}
h2{font-size:clamp(1.75rem,3.4vw,2.6rem)}
h3{font-size:clamp(1.15rem,1.8vw,1.42rem);letter-spacing:-.012em}
p{margin:0 0 1.15em;max-width:72ch}
.lede{font-size:clamp(1.1rem,1.6vw,1.28rem);color:var(--bone-dim);max-width:60ch}

.wrap{max-width:var(--wrap);margin-inline:auto;padding-inline:var(--gut)}
.section{padding-block:var(--sp)}
.section--tint{background:var(--ink-2)}
.stack>*+*{margin-top:1.1rem}

/* ---------- topbar + header ---------- */
.topbar{
  background:#0F0B09;border-bottom:1px solid var(--line);
  font-family:var(--display);font-size:.815rem;color:var(--muted);
}
.topbar__in{display:flex;gap:1.6rem;flex-wrap:wrap;align-items:center;justify-content:space-between;padding-block:.55rem}
.topbar a{text-decoration:none}
.topbar a:hover{color:var(--bone)}

.site-header{position:sticky;top:0;z-index:60;background:rgba(22,17,14,.93);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.header__in{display:flex;align-items:center;gap:1.4rem;padding-block:.7rem}
.brand{display:flex;align-items:center;gap:.7rem;text-decoration:none;flex:0 0 auto}
.brand img{width:46px;height:auto;background:#fff;border-radius:7px;padding:4px}
.brand b{font-family:var(--display);font-size:1.02rem;font-weight:800;letter-spacing:-.02em;line-height:1.1;display:block}
.brand span{font-family:var(--display);font-size:.68rem;color:var(--muted);letter-spacing:.06em;display:block}

.nav{margin-left:auto;display:flex;align-items:center;gap:1.5rem;font-family:var(--display);font-size:.925rem}
.nav a{text-decoration:none;color:var(--bone-dim);padding-block:.4rem}
.nav a:hover,.nav a[aria-current="page"]{color:var(--bone)}
.nav__drop{position:relative}
.nav__drop>button{
  font:inherit;color:var(--bone-dim);background:none;border:0;cursor:pointer;
  display:inline-flex;align-items:center;gap:.35rem;padding-block:.4rem;
}
.nav__drop>button:hover,.nav__drop[data-open="true"]>button{color:var(--bone)}
.nav__drop>button::after{
  content:"";width:6px;height:6px;border-right:1.6px solid currentColor;
  border-bottom:1.6px solid currentColor;transform:rotate(45deg) translateY(-2px);
  transition:transform .18s ease
}
.nav__drop[data-open="true"]>button::after{transform:rotate(-135deg) translateY(0)}

/* The panel is a positioning shell with a transparent top strip. That strip is
   the bridge the pointer travels through, so it never leaves .nav__drop and the
   menu does not close on the way to the links. */
.nav__panel{
  position:absolute;top:100%;left:-16px;min-width:300px;
  padding-top:14px;display:none;
}
.nav__card{
  background:var(--ink-2);border:1px solid var(--line-strong);border-radius:12px;
  padding:.5rem;box-shadow:0 26px 60px rgba(0,0,0,.55);
  max-height:min(70vh,560px);overflow-y:auto;
}
.nav__drop[data-open="true"] .nav__panel{display:block}
.nav__panel a{display:block;padding:.5rem .7rem;border-radius:8px;font-size:.9rem;color:var(--bone-dim)}
.nav__panel a:hover{background:var(--ink-3);color:var(--bone)}
.nav__card>a:first-child{border-bottom:1px solid var(--line);border-radius:8px 8px 0 0;margin-bottom:.3rem;padding-bottom:.6rem;color:var(--bone)}
.nav-toggle{display:none;margin-left:auto;background:none;border:1px solid var(--line-strong);border-radius:9px;color:var(--bone);padding:.55rem .9rem;font:inherit;font-family:var(--display);font-size:.9rem;line-height:1.2;cursor:pointer;min-width:74px}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.55rem;font-family:var(--display);
  font-weight:600;font-size:.94rem;text-decoration:none;padding:.82rem 1.4rem;
  border-radius:10px;border:1px solid transparent;cursor:pointer;line-height:1;
  transition:background .18s ease,border-color .18s ease,color .18s ease;
}
.btn--primary{background:var(--brand-red);color:#fff}
.btn--primary:hover{background:#c72e21}
.btn--ghost{border-color:var(--line-strong);color:var(--bone)}
.btn--ghost:hover{border-color:var(--ember);color:var(--ember)}
.btn--wa{background:#1FA855;color:#fff}
.btn--wa:hover{background:#178f47}

/* ---------- hero ---------- */
.hero{position:relative;isolation:isolate;min-height:min(88vh,760px);display:flex;align-items:flex-end}
.hero__media{position:absolute;inset:0;z-index:-2;overflow:hidden}
.hero__media img{width:100%;height:100%;object-fit:cover}
.hero::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(180deg,rgba(12,9,7,.82) 0%,rgba(12,9,7,.55) 38%,rgba(12,9,7,.94) 100%);
}
.hero__in{padding-block:clamp(90px,13vw,150px) clamp(38px,5vw,60px);width:100%}
.hero h1{max-width:17ch;text-shadow:0 2px 24px rgba(0,0,0,.5)}
.hero .lede{max-width:56ch}
.hero__cta{display:flex;flex-wrap:wrap;gap:.8rem;margin-top:1.9rem}

/* signature: climate strip — the physics of each room type */
.climate{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;margin-top:3rem;
  background:var(--line-strong);border:1px solid var(--line-strong);border-radius:12px;overflow:hidden;
}
.climate div{background:rgba(15,11,9,.85);padding:1rem 1.05rem}
.climate dt{font-family:var(--display);font-size:.7rem;letter-spacing:.07em;color:var(--muted);margin-bottom:.35rem}
.climate dd{margin:0;font-family:var(--display);font-weight:700;font-size:clamp(1rem,1.6vw,1.22rem);letter-spacing:-.02em}
.climate dd small{display:block;font-weight:400;font-size:.76rem;color:var(--bone-dim);letter-spacing:0;margin-top:.15rem;font-family:var(--body)}
.t-dry{color:var(--ember)}
.t-wet{color:var(--vapour)}

/* ---------- section heads ---------- */
.head{max-width:64ch;margin-bottom:clamp(2.2rem,4vw,3.4rem)}
.head p{color:var(--bone-dim)}

/* ---------- service tiles ---------- */
.tiles{display:grid;grid-template-columns:repeat(auto-fill,minmax(288px,1fr));gap:1px;background:var(--line);border:1px solid var(--line);border-radius:14px;overflow:hidden}
.tile{background:var(--ink);padding:1.6rem 1.5rem 1.7rem;text-decoration:none;display:flex;flex-direction:column;transition:background .18s ease}
.tile:hover{background:var(--ink-3)}
.tile__chip{
  font-family:var(--display);font-size:.7rem;letter-spacing:.05em;
  display:inline-flex;align-items:center;gap:.45rem;margin-bottom:.9rem;color:var(--muted)
}
.tile__chip i{width:7px;height:7px;border-radius:50%;background:var(--ember);display:block}
.tile--wet .tile__chip i{background:var(--vapour)}
.tile h3{margin-bottom:.45rem}
.tile p{font-size:.945rem;color:var(--bone-dim);margin:0;line-height:1.6}
.tile__more{margin-top:auto;padding-top:1.1rem;font-family:var(--display);font-size:.86rem;color:var(--ember)}
.tile--wet .tile__more{color:var(--vapour)}

/* ---------- tables ---------- */
.table-scroll{overflow-x:auto;border:1px solid var(--line);border-radius:12px}
table{width:100%;border-collapse:collapse;font-size:.95rem;min-width:560px}
th,td{text-align:left;padding:.92rem 1.1rem;border-bottom:1px solid var(--line)}
th{font-family:var(--display);font-size:.8rem;letter-spacing:.05em;color:var(--muted);font-weight:600;background:var(--ink-2)}
tbody tr:last-child td{border-bottom:0}
td b{font-family:var(--display);font-weight:700}
.note{font-size:.9rem;color:var(--muted);margin-top:1rem}

/* ---------- split ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(2rem,5vw,4.4rem);align-items:start}
.compare{border:1px solid var(--line);border-radius:12px;padding:1.7rem 1.6rem;background:var(--ink)}
.compare--wet{border-color:rgba(87,167,212,.32)}
.compare--dry{border-color:rgba(227,155,61,.32)}
.compare h3{margin-bottom:1rem}
.compare ul{margin:0;padding-left:1.1rem;color:var(--bone-dim)}
.compare li{margin-bottom:.55rem}

/* ---------- process ---------- */
.steps{counter-reset:s;display:grid;gap:0;border-top:1px solid var(--line)}
.step{counter-increment:s;display:grid;grid-template-columns:auto 1fr;gap:1.5rem;padding:1.5rem 0;border-bottom:1px solid var(--line);align-items:baseline}
.step::before{content:counter(s,decimal-leading-zero);font-family:var(--display);font-weight:800;font-size:1.05rem;color:var(--ember-deep)}
.step h3{margin-bottom:.3rem}
.step p{margin:0;color:var(--bone-dim);font-size:.96rem}

/* ---------- gallery ---------- */
.gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:.6rem}
.gallery figure{margin:0;position:relative;border-radius:10px;overflow:hidden;background:var(--ink-2)}
.gallery img{aspect-ratio:4/5;object-fit:cover;width:100%}
.gallery figcaption{position:absolute;inset:auto 0 0 0;padding:.9rem .85rem .75rem;font-family:var(--display);font-size:.78rem;background:linear-gradient(180deg,transparent,rgba(10,7,5,.9))}
.gallery--wide figure:first-child{grid-column:span 2}

/* ---------- location chips ---------- */
.places{display:flex;flex-wrap:wrap;gap:.55rem}
.places a{
  text-decoration:none;font-family:var(--display);font-size:.9rem;
  border:1px solid var(--line-strong);border-radius:999px;padding:.6rem 1.05rem;color:var(--bone-dim)
}
.places a:hover{border-color:var(--ember);color:var(--ember)}

/* ---------- faq ---------- */
.faq{border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{
  cursor:pointer;list-style:none;padding:1.15rem 2.4rem 1.15rem 0;position:relative;
  font-family:var(--display);font-weight:600;font-size:1.03rem;letter-spacing:-.012em;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"";position:absolute;right:.35rem;top:1.55rem;width:11px;height:11px;border-right:1.8px solid var(--ember);border-bottom:1.8px solid var(--ember);transform:rotate(45deg);transition:transform .2s ease}
.faq details[open] summary::after{transform:rotate(-135deg)}
.faq details p{color:var(--bone-dim);padding-bottom:1.1rem;margin:0;font-size:.99rem}

/* ---------- contact ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1.15fr;gap:clamp(1.6rem,4vw,3rem);align-items:stretch}
.card{background:var(--ink-2);border:1px solid var(--line-strong);border-radius:14px;padding:clamp(1.6rem,3vw,2.2rem)}
.card dl{margin:0;display:grid;gap:1.15rem}
.card dt{font-family:var(--display);font-size:.72rem;letter-spacing:.07em;color:var(--muted)}
.card dd{margin:.3rem 0 0;font-size:1.02rem}
.card dd a{text-decoration:none;border-bottom:1px solid var(--line-strong)}
.card dd a:hover{color:var(--ember);border-color:var(--ember)}
.map{border-radius:14px;overflow:hidden;border:1px solid var(--line-strong);min-height:340px}
.map iframe{width:100%;height:100%;min-height:340px;border:0;display:block;filter:grayscale(.35) contrast(1.05)}

/* ---------- footer ---------- */
.site-footer{background:#0F0B09;border-top:1px solid var(--line);padding-block:clamp(3rem,6vw,4.6rem) 2rem;font-size:.93rem}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:2.2rem}
.foot-grid h4{font-size:.78rem;letter-spacing:.08em;color:var(--muted);margin-bottom:1rem;font-weight:600}
.foot-grid ul{list-style:none;margin:0;padding:0}
.foot-grid li{margin-bottom:.5rem}
.foot-grid a{text-decoration:none;color:var(--bone-dim)}
.foot-grid a:hover{color:var(--ember)}
.foot-bottom{margin-top:2.8rem;padding-top:1.4rem;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:1rem;justify-content:space-between;color:var(--muted);font-size:.85rem}

/* ---------- floating whatsapp ---------- */
.wa-float{
  position:fixed;right:18px;bottom:18px;z-index:80;width:56px;height:56px;border-radius:50%;
  background:#1FA855;display:grid;place-items:center;box-shadow:0 10px 28px rgba(0,0,0,.45);
}
.wa-float svg{width:29px;height:29px;fill:#fff}

/* ---------- responsive ---------- */
@media (max-width:980px){
  .split,.contact-grid,.foot-grid{grid-template-columns:1fr}
  .climate{grid-template-columns:repeat(2,1fr)}
  .nav-toggle{display:block}
  .nav{
    position:absolute;top:100%;left:0;right:0;flex-direction:column;align-items:stretch;
    gap:0;background:var(--ink-2);border-bottom:1px solid var(--line-strong);
    padding:.4rem var(--gut) 1.4rem;display:none;
    max-height:calc(100vh - 4.75rem);max-height:calc(100dvh - 4.75rem);
    overflow-y:auto;-webkit-overflow-scrolling:touch;
    overscroll-behavior:contain;
  }
  .site-header[data-nav="open"] .nav{display:flex}
  .nav>a,.nav__drop>button{padding:.85rem 0;border-bottom:1px solid var(--line);width:100%;text-align:left}
  .nav__drop{width:100%}
  .nav__drop>button{justify-content:space-between}
  /* collapsed by default on mobile — the panel only opens when its button is tapped */
  .nav__panel{position:static;display:none!important;padding:0;min-width:0}
  .nav__drop[data-open="true"]>.nav__panel{display:block!important}
  .nav__card{border:0;background:none;box-shadow:none;padding:.2rem 0 .7rem .9rem;max-height:none;overflow:visible}
  .nav__panel a{padding:.62rem .4rem}
  .nav__card>a:first-child{border-bottom:0;margin-bottom:0;padding-bottom:.62rem}
  .nav .btn{margin-top:1rem;justify-content:center}
  .gallery--wide figure:first-child{grid-column:span 1}
}
@media (max-width:560px){
  .climate{grid-template-columns:1fr}
  .topbar__in{font-size:.75rem;gap:.6rem}
  .step{grid-template-columns:1fr;gap:.3rem}
}

/* ==========================================================================
   Calculators and charts
   ========================================================================== */
.calc{
  background:var(--ink-2);border:1px solid var(--line-strong);border-radius:14px;
  padding:clamp(1.4rem,3vw,2rem);display:grid;grid-template-columns:1fr 1fr;
  gap:clamp(1.5rem,3vw,2.6rem);align-items:start;
}
.calc__fields{display:grid;gap:1.05rem}
.field{display:grid;gap:.4rem}
.field label{font-family:var(--display);font-size:.78rem;letter-spacing:.05em;color:var(--muted)}
.field input,.field select{
  font:inherit;font-family:var(--display);font-size:1rem;color:var(--bone);
  background:var(--ink);border:1px solid var(--line-strong);border-radius:9px;
  padding:.72rem .85rem;width:100%;appearance:none;
}
.field select{background-image:linear-gradient(45deg,transparent 50%,var(--ember) 50%),linear-gradient(135deg,var(--ember) 50%,transparent 50%);background-position:calc(100% - 20px) 50%,calc(100% - 14px) 50%;background-size:6px 6px,6px 6px;background-repeat:no-repeat;padding-right:2.4rem}
.field input:focus,.field select:focus{border-color:var(--ember);outline:none}
.field small{color:var(--muted);font-size:.82rem;line-height:1.45}
.field--row{grid-template-columns:repeat(3,1fr);gap:.6rem}
.field--row>div{display:grid;gap:.4rem}

.calc__out{
  background:var(--ink);border:1px solid var(--line-strong);border-radius:12px;
  padding:clamp(1.3rem,2.5vw,1.7rem);position:sticky;top:96px;
}
.calc__headline{font-family:var(--display);font-weight:800;letter-spacing:-.03em;
  font-size:clamp(2rem,4.4vw,2.9rem);line-height:1;margin:.15rem 0 .2rem}
.calc__headline.t-wet{color:var(--vapour)}
.calc__headline.t-dry{color:var(--ember)}
.calc__label{font-family:var(--display);font-size:.72rem;letter-spacing:.07em;color:var(--muted)}
.calc__rows{margin-top:1.3rem;display:grid;gap:.7rem}
.calc__row{display:flex;justify-content:space-between;gap:1rem;font-size:.93rem;
  padding-bottom:.7rem;border-bottom:1px solid var(--line)}
.calc__row:last-child{border-bottom:0;padding-bottom:0}
.calc__row span:first-child{color:var(--muted)}
.calc__row span:last-child{font-family:var(--display);font-weight:600;text-align:right}
.calc__note{margin-top:1.2rem;font-size:.89rem;color:var(--bone-dim);line-height:1.6}
.calc__flag{margin-top:.9rem;font-size:.89rem;line-height:1.55;padding:.75rem .9rem;
  border-radius:9px;border:1px solid rgba(227,155,61,.35);background:rgba(227,155,61,.08);color:var(--bone-dim)}
.calc__flag:empty{display:none}

.tool-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1px;
  background:var(--line);border:1px solid var(--line);border-radius:14px;overflow:hidden}

@media (max-width:860px){
  .calc{grid-template-columns:1fr}
  .calc__out{position:static}
}