/* ============================================================
   Suditek Bath — homepage
   Design system: cool stone ground, ink, deep teal (LINE)
   Display: Newsreader (serif) · Text: Instrument Sans
   Family: same system as Suditek Garden, cooled for wet rooms
   ============================================================ */

:root{
  --stone:      #F4F3F0;
  --stone-2:    #EAE9E4;
  --stone-3:    #DEDDD7;
  --ink:        #14181A;
  --ink-soft:   #3E4448;
  --muted:      #7A8082;
  --line:       #2F4A52;
  --level:      #5A6B70;
  --point:      #8A8F8C;
  --wall:       #3C4A4F;
  --rule:       rgba(20,24,26,.14);
  --rule-soft:  rgba(20,24,26,.08);

  --serif: "Newsreader", "Iowan Old Style", "Songti SC", "Noto Serif SC", Georgia, serif;
  --sans: "Instrument Sans", "PingFang SC", "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Helvetica Neue", sans-serif;

  --gutter: clamp(20px, 4.2vw, 56px);
  --maxw: 1280px;
  --sec-y: clamp(72px, 8.6vw, 140px);
  --r: 3px;
}

*,*::before,*::after{ box-sizing:border-box; }

html{ -webkit-text-size-adjust:100%; scroll-behavior:smooth; }
@media (prefers-reduced-motion:reduce){ html{ scroll-behavior:auto; } }

body{
  margin:0;
  background:var(--stone);
  color:var(--ink);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

img{ display:block; max-width:100%; height:auto; }
a{ color:inherit; text-decoration:none; }
h1,h2,h3,h4{ margin:0; font-weight:400; }
p{ margin:0; }
ul,dl,ol{ margin:0; padding:0; list-style:none; }

::selection{ background:var(--line); color:var(--stone); }

:focus-visible{ outline:2px solid var(--line); outline-offset:3px; }

.skip{
  position:absolute; left:-9999px; top:0; z-index:200;
  background:var(--ink); color:var(--stone); padding:12px 18px;
}
.skip:focus{ left:12px; top:12px; }

section[id], .quote__inner[id]{ scroll-margin-top:92px; }

/* ---------- type ---------- */
.eyebrow{
  font-size:11px;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--muted);
  font-weight:500;
  margin:0 0 20px;
}

h2{
  font-family:var(--serif);
  font-size:clamp(1.95rem, 4.4vw, 3.3rem);
  line-height:1.07;
  letter-spacing:-.015em;
  font-weight:300;
}
h2 em{ font-style:italic; color:var(--line); }

.lede{ font-size:clamp(15px,1.5vw,17px); color:var(--ink-soft); max-width:46ch; }

/* ---------- buttons ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center;
  gap:10px;
  padding:14px 26px;
  border-radius:var(--r);
  border:1px solid transparent;
  font-size:14px;
  font-weight:500;
  letter-spacing:.01em;
  line-height:1;
  cursor:pointer;
  transition:background .25s ease, color .25s ease, border-color .25s ease, transform .25s ease;
}
.btn--sm{ padding:11px 20px; font-size:13px; }
.btn--light{ background:var(--stone); color:var(--ink); }
.btn--light:hover{ background:#fff; }
.btn--dark{ background:var(--ink); color:var(--stone); }
.btn--dark:hover{ background:var(--line); }
.btn--ghost-light{
  border-color:rgba(244,243,240,.42);
  color:var(--stone);
  backdrop-filter:blur(2px);
}
.btn--ghost-light:hover{
  background:rgba(244,243,240,.13);
  border-color:rgba(244,243,240,.78);
}
.btn--ghost{ border-color:var(--rule); color:var(--ink); }
.btn--ghost:hover{ border-color:var(--ink); }

/* ============================================================
   NAV
   ============================================================ */
.nav{
  position:fixed; inset:0 0 auto 0; z-index:100;
  border-bottom:1px solid transparent;
  transition:background .35s ease, border-color .35s ease;
}
.nav__inner{
  max-width:var(--maxw);
  margin:0 auto;
  padding:0 var(--gutter);
  height:78px;
  display:flex; align-items:center; justify-content:space-between; gap:24px;
  transition:height .3s ease;
}
.nav a, .nav button{ color:var(--stone); }

.brand{ display:flex; align-items:baseline; gap:8px; white-space:nowrap; }
.brand__mark{
  font-family:var(--sans);
  font-size:15px; font-weight:500;
  letter-spacing:.26em;
  text-transform:uppercase;
}
.brand__sub{
  font-family:var(--serif);
  font-size:14px; font-style:italic;
  letter-spacing:.02em;
  opacity:.82;
}

.nav__links{ display:flex; align-items:center; gap:clamp(16px,2.4vw,34px); }
.nav__links a{
  position:relative; padding:6px 0;
  font-size:13.5px; letter-spacing:.01em;
  opacity:.86; transition:opacity .2s ease;
}
.nav__links a::after{
  content:""; position:absolute; left:0; right:0; bottom:0; height:1px;
  background:currentColor; transform:scaleX(0); transform-origin:left;
  transition:transform .3s ease;
}
.nav__links a:hover{ opacity:1; }
.nav__links a:hover::after{ transform:scaleX(1); }

.nav__end{ display:flex; align-items:center; gap:14px; }
.nav__cta-mobile{ display:none; }

.burger{
  display:none; width:44px; height:44px;
  background:none; border:0; padding:0;
  position:relative; cursor:pointer;
}
.burger span{
  position:absolute; left:12px; right:12px; height:1px;
  background:currentColor; transition:transform .3s ease, top .3s ease;
}
.burger span:nth-child(1){ top:19px; }
.burger span:nth-child(2){ top:25px; }

.nav.is-solid{
  background:rgba(244,243,240,.94);
  backdrop-filter:saturate(140%) blur(10px);
  border-bottom-color:var(--rule-soft);
}
.nav.is-solid a, .nav.is-solid button{ color:var(--ink); }
.nav.is-solid .nav__inner{ height:70px; }
.nav.is-solid .btn--sm{ background:var(--ink); color:var(--stone); }
.nav:not(.is-solid) .btn--sm{ border-color:rgba(244,243,240,.42); color:var(--stone); }
.nav:not(.is-solid) .btn--sm:hover{ background:rgba(244,243,240,.14); }

.nav.is-open{ background:var(--stone); border-bottom-color:transparent; }
.nav.is-open a, .nav.is-open button{ color:var(--ink); }
.nav.is-open .burger span:nth-child(1){ transform:translateY(3px) rotate(45deg); }
.nav.is-open .burger span:nth-child(2){ transform:translateY(-3px) rotate(-45deg); }

/* ============================================================
   HERO
   ============================================================ */
.hero{
  position:relative;
  min-height:100svh;
  display:flex; flex-direction:column;
  justify-content:flex-end;
  overflow:hidden;
}
.hero__media{ position:absolute; inset:0; }
.hero__media img{
  width:100%; height:100%;
  object-fit:cover;
  object-position:50% 58%;
  transform:scale(1.02);
}
.hero__veil{
  position:absolute; inset:0;
  background:
    linear-gradient(180deg, rgba(12,16,18,.52) 0%, rgba(12,16,18,.10) 34%, rgba(12,16,18,.52) 100%),
    linear-gradient(96deg, rgba(12,16,18,.55) 0%, rgba(12,16,18,.14) 52%, rgba(12,16,18,0) 78%);
}
.hero__content{
  position:relative;
  max-width:var(--maxw); width:100%;
  margin:0 auto;
  padding:0 var(--gutter) clamp(64px,8vw,110px);
}
.hero .eyebrow{ color:rgba(244,243,240,.74); margin-bottom:22px; }
.hero h1{
  font-family:var(--serif);
  font-size:clamp(2.9rem, 8.4vw, 6.6rem);
  line-height:.98;
  letter-spacing:-.028em;
  font-weight:300;
  color:var(--stone);
  max-width:15ch;
}
.hero h1 em{ font-style:italic; color:#B9CDD1; }
.hero__lede{
  margin-top:26px;
  max-width:52ch;
  font-size:clamp(15px,1.7vw,17.5px);
  line-height:1.65;
  color:rgba(244,243,240,.82);
}
.hero__actions{ display:flex; flex-wrap:wrap; gap:12px; margin-top:34px; }

.hero__scroll{
  position:absolute; right:var(--gutter); bottom:clamp(64px,8vw,110px);
  display:flex; align-items:center; gap:10px;
  font-size:10.5px; letter-spacing:.2em; text-transform:uppercase;
  color:rgba(244,243,240,.72);
  padding-right:4px;
}
.hero__scroll svg{ animation:drop 2.6s ease-in-out infinite; }
@keyframes drop{
  0%,100%{ transform:translateY(0); opacity:.5; }
  50%{ transform:translateY(5px); opacity:1; }
}
@media (prefers-reduced-motion:reduce){
  .hero__scroll svg{ animation:none; }
}

/* ============================================================
   SECTION SHELL
   ============================================================ */
.sec{ padding:var(--sec-y) 0; }
.sec--tint{ background:var(--stone-2); }
.sec--flush{ padding-bottom:0; }
.sec--ink{ background:var(--ink); color:var(--stone); }
.sec--ink h2{ color:var(--stone); }
.sec--ink h2 em{ color:#9FB8BD; }
.sec--ink .eyebrow{ color:rgba(244,243,240,.55); }
.sec--ink .lede{ color:rgba(244,243,240,.76); }

.wrap{ max-width:var(--maxw); margin:0 auto; padding:0 var(--gutter); }

.sec__head{
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:clamp(24px,5vw,72px);
  align-items:end;
  margin-bottom:clamp(40px,5.5vw,76px);
}
.sec__head--tight{ grid-template-columns:1fr; }
.sec__head--tight .sec__note{ margin-top:22px; }
.sec__note{
  font-size:14.5px; color:var(--ink-soft); max-width:38ch;
  justify-self:end;
}
.sec--ink .sec__note{ color:rgba(244,243,240,.72); }

/* ============================================================
   SPLIT (text + image)
   ============================================================ */
.split{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:clamp(28px,5vw,72px);
  align-items:center;
}
.split__media img{ width:100%; border-radius:var(--r); }
.split__body h2{ margin-bottom:20px; }
.split__body p{ font-size:15px; color:var(--ink-soft); max-width:44ch; }
.split__body p + p{ margin-top:16px; }

.facts{
  margin-top:34px;
  border-top:1px solid var(--rule);
}
.fact{
  display:grid;
  grid-template-columns:auto 1fr;
  gap:18px;
  align-items:baseline;
  padding:15px 0;
  border-bottom:1px solid var(--rule);
}
.fact dt{
  font-family:var(--serif);
  font-size:16px;
  color:var(--ink);
  white-space:nowrap;
}
.fact dd{ font-size:13.5px; color:var(--ink-soft); }
.sec--ink .fact, .sec--ink .facts{ border-color:rgba(244,243,240,.18); }
.sec--ink .fact dt{ color:var(--stone); }
.sec--ink .fact dd{ color:rgba(244,243,240,.66); }

/* ============================================================
   COLLECTIONS (series rows)
   ============================================================ */
.colls{ border-top:1px solid var(--rule); }
.coll{
  position:relative;
  display:grid;
  grid-template-columns:56px minmax(140px,.72fr) 1.72fr auto;
  gap:clamp(16px,3vw,40px);
  align-items:center;
  padding:clamp(22px,2.6vw,30px) 0;
  border-bottom:1px solid var(--rule);
  transition:padding-left .35s ease, background .35s ease;
}
.coll::before{
  content:"";
  position:absolute; left:0; top:0; bottom:0; width:3px;
  background:var(--chip,var(--line));
  transform:scaleY(0); transform-origin:top;
  transition:transform .35s ease;
}
.coll:hover{ background:rgba(255,255,255,.5); padding-left:clamp(18px,2.4vw,30px); }
.coll--soon{ cursor:default; }
.coll--soon:hover{ background:transparent; padding-left:0; }
.coll--soon:hover::before{ transform:scaleY(0); }
.coll:hover::before{ transform:scaleY(1); }

.coll__idx{
  font-size:11px; letter-spacing:.16em; color:var(--muted);
  font-variant-numeric:tabular-nums;
}
.coll__name h3{
  font-family:var(--serif);
  font-size:clamp(1.35rem,2.3vw,1.9rem);
  letter-spacing:-.01em;
  line-height:1.1;
}
.coll__cn{ display:block; margin-top:6px; font-size:11.5px; letter-spacing:.1em; color:var(--muted); }
.coll__desc{ font-size:14px; color:var(--ink-soft); max-width:54ch; }
.coll__meta{ display:flex; gap:6px; flex-wrap:wrap; justify-content:flex-end; }

.chip{
  font-size:10.5px; letter-spacing:.09em; text-transform:uppercase;
  padding:6px 10px;
  border:1px solid var(--rule);
  border-radius:2px;
  color:var(--ink-soft);
  white-space:nowrap;
  font-variant-numeric:tabular-nums;
}

/* ============================================================
   SPEC TABLE
   ============================================================ */
.spec{
  width:100%;
  border-collapse:collapse;
  font-variant-numeric:tabular-nums;
}
.spec caption{
  text-align:left;
  font-size:12px; letter-spacing:.12em; text-transform:uppercase;
  color:var(--muted);
  padding-bottom:14px;
}
.spec th, .spec td{
  text-align:left;
  padding:15px 14px 15px 0;
  border-bottom:1px solid var(--rule);
  font-size:13.5px;
  vertical-align:baseline;
}
.spec th{
  font-size:10.5px; letter-spacing:.13em; text-transform:uppercase;
  color:var(--muted); font-weight:500;
  border-bottom-color:var(--ink);
  padding-bottom:10px;
}
.spec td:first-child{
  font-family:var(--sans);
  font-weight:500;
  color:var(--ink);
  white-space:nowrap;
}
.spec tbody tr:hover{ background:rgba(255,255,255,.5); }
.spec .t-muted{ color:var(--ink-soft); }

.table-note{
  margin-top:18px;
  font-size:12.5px;
  color:var(--muted);
  max-width:66ch;
}

/* ============================================================
   SECTION DIAGRAM (build-up)
   ============================================================ */
.buildup{
  display:grid;
  grid-template-columns:1.45fr .55fr;
  gap:clamp(28px,5vw,64px);
  align-items:start;
}
.buildup__fig{ margin:0; }
.buildup__fig svg{ width:100%; height:auto; display:block; }
.buildup__legend{ counter-reset:leg; }
.buildup__legend li{
  display:grid;
  grid-template-columns:26px 1fr;
  gap:14px;
  padding:14px 0;
  border-bottom:1px solid rgba(244,243,240,.16);
  font-size:13.5px;
  color:rgba(244,243,240,.74);
}
.buildup__legend li::before{
  counter-increment:leg;
  content:counter(leg);
  font-family:var(--serif);
  font-size:14px;
  color:#9FB8BD;
  line-height:1.5;
}
.buildup__legend strong{
  display:block;
  color:var(--stone);
  font-weight:500;
  font-size:13px;
  letter-spacing:.02em;
  margin-bottom:3px;
}

/* ============================================================
   KITS
   ============================================================ */
.kits{
  display:grid;
  grid-template-columns:1.1fr .9fr;
  gap:clamp(28px,5vw,72px);
  align-items:center;
}
.kits__media img{ width:100%; border-radius:var(--r); }
.kits__body h2{ margin-bottom:20px; }
.kits__body .lede{ margin-bottom:30px; }

.kitlist{ border-top:1px solid var(--rule); margin-bottom:30px; }
.kitlist li{
  border-bottom:1px solid var(--rule);
  padding:14px 0;
  font-size:14px;
  color:var(--ink-soft);
  display:grid;
  grid-template-columns:auto 1fr;
  gap:14px;
  align-items:baseline;
}
.kitlist li span:first-child{
  font-size:10.5px; letter-spacing:.12em; color:var(--muted);
  font-variant-numeric:tabular-nums;
}

/* ============================================================
   TOOLS / DOWNLOADS
   ============================================================ */
.tools{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:1px;
  background:var(--rule);
  border-top:1px solid var(--rule);
  border-bottom:1px solid var(--rule);
}
.tool{
  background:var(--stone);
  padding:clamp(22px,2.6vw,32px);
  display:flex; flex-direction:column;
  transition:background .3s ease, transform .3s ease;
}
.tool:hover{ background:#fff; }
.tool__ico{
  width:30px; height:30px;
  margin-bottom:26px;
  color:var(--line);
}
.tool__ico svg{ width:100%; height:100%; }
.tool h3{ font-size:15px; font-weight:500; margin-bottom:8px; }
.tool p{ font-size:13px; color:var(--ink-soft); flex:1; }
.tool__go{
  margin-top:22px;
  font-size:11px; letter-spacing:.14em; text-transform:uppercase;
  color:var(--muted);
  display:flex; align-items:center; gap:8px;
}
.tool:hover .tool__go{ color:var(--line); }

/* ============================================================
   QUOTE
   ============================================================ */
.quote{ background:var(--stone-2); }
.quote__inner{
  max-width:var(--maxw); margin:0 auto; padding:var(--sec-y) var(--gutter);
  display:grid;
  grid-template-columns:1.1fr .9fr;
  gap:clamp(28px,5vw,72px);
  align-items:start;
}
.quote h2{ max-width:16ch; }
.quote__form{ display:grid; gap:12px; }
.field{
  display:grid;
  gap:6px;
}
.field label{
  font-size:10.5px; letter-spacing:.14em; text-transform:uppercase; color:var(--muted);
}
.field input, .field textarea, .field select{
  width:100%;
  font-family:inherit; font-size:14px; color:var(--ink);
  background:rgba(255,255,255,.6);
  border:1px solid var(--rule);
  border-radius:2px;
  padding:13px 14px;
  transition:border-color .2s ease, background .2s ease;
}
.field input:focus, .field textarea:focus, .field select:focus{
  outline:none; border-color:var(--line); background:#fff;
}
.field textarea{ min-height:96px; resize:vertical; }
.quote__form .btn{ margin-top:8px; }
.quote__alt{
  margin-top:16px; font-size:12.5px; color:var(--muted);
}
.quote__alt a{ border-bottom:1px solid var(--rule); }
.quote__alt a:hover{ border-color:var(--line); color:var(--ink); }

/* ============================================================
   REVEAL
   ============================================================ */
.rv{ opacity:0; transform:translateY(16px); transition:opacity .8s ease, transform .8s ease; }
.rv.in{ opacity:1; transform:none; }
@media (prefers-reduced-motion:reduce){
  .rv{ opacity:1; transform:none; transition:none; }
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width:1080px){
  .coll{ grid-template-columns:44px minmax(120px,.9fr) 1.4fr; }
  .coll__meta{ grid-column:2 / -1; justify-content:flex-start; padding-top:6px; }
  .tools{ grid-template-columns:repeat(2,1fr); }
}

@media (max-width:900px){
  .sec__head{ grid-template-columns:1fr; align-items:start; }
  .sec__note{ justify-self:start; max-width:52ch; }
  .split{ grid-template-columns:1fr; }
  .split__media{ order:-1; }
  .buildup{ grid-template-columns:1fr; }
  .kits{ grid-template-columns:1fr; }
  .kits__media{ order:-1; }
  .quote__inner{ grid-template-columns:1fr; }
}

@media (max-width:760px){
  .nav__inner{ height:66px; }
  .nav__links{
    position:fixed; inset:66px 0 auto 0;
    background:var(--stone);
    flex-direction:column; align-items:flex-start; gap:0;
    padding:8px var(--gutter) 26px;
    border-bottom:1px solid var(--rule);
    transform:translateY(-120%);
    transition:transform .38s cubic-bezier(.22,.8,.3,1);
    max-height:calc(100dvh - 66px);
    overflow-y:auto;
  }
  .nav__links a{
    width:100%;
    padding:15px 0;
    border-bottom:1px solid var(--rule-soft);
    font-size:16px;
    color:var(--ink) !important;
    opacity:1;
  }
  .nav__links a::after{ display:none; }
  .nav.is-open .nav__links{ transform:translateY(0); }
  .nav__cta-mobile{ display:block; padding-top:22px; border:0 !important; }
  .nav__cta-mobile .btn{ width:100%; }
  .nav__end .btn{ display:none; }
  .burger{ display:block; }
  .nav.is-open .burger span{ color:var(--ink); }

  .hero{ min-height:88svh; }
  .hero__scroll{ display:none; }
  .hero h1{ max-width:100%; }
  .hero__lede{ margin-top:20px; }
  .hero__actions .btn{ flex:1 1 auto; }

  .coll{ grid-template-columns:1fr; gap:8px; padding:22px 0; }
  .coll__idx{ display:none; }
  .coll__meta{ grid-column:1; }
  .coll__desc{ font-size:13.5px; }

  .spec th:nth-child(5), .spec td:nth-child(5){ display:none; }
  .spec th, .spec td{ padding:13px 8px 13px 0; font-size:12.5px; }

  .tools{ grid-template-columns:1fr; }
}

@media (max-width:430px){
  .spec th:nth-child(2), .spec td:nth-child(2){ display:none; }
  .hero h1{ font-size:clamp(2.4rem,11vw,3.2rem); }
}

/* ---------- footer (Purity style) ---------- */
.foot{ background:var(--stone-2); padding:clamp(38px,4vw,56px) 0 24px; }

.foot__in{
  max-width:var(--maxw); margin:0 auto; padding:0 var(--gutter);
  display:grid; grid-template-columns:1.3fr repeat(3,.9fr); gap:clamp(18px,3vw,40px);
}

.foot h4{
  font-family:var(--sans); font-size:10px; letter-spacing:.12em; text-transform:uppercase;
  color:var(--muted); margin-bottom:12px; font-weight:500;
}

.foot ul{ list-style:none; margin:0; padding:0; }

.foot li{ font-size:12.5px; color:var(--ink-soft); padding:3px 0; }

.foot li a{ color:inherit; text-decoration:none; }

.foot li a:hover{ color:var(--wall); }

.foot__line{ font-size:12.5px; color:var(--ink-soft); margin-top:12px; max-width:32ch; line-height:1.65; }

.lock{ display:flex; align-items:baseline; gap:7px; }

.lock__a{ font-size:13px; font-weight:600; letter-spacing:.24em; text-transform:uppercase; }

.lock__b{ font-size:11px; letter-spacing:.14em; text-transform:uppercase; color:var(--wall); }

.foot__btm{
  max-width:var(--maxw); margin:28px auto 0; padding:16px var(--gutter) 0;
  border-top:1px solid var(--rule);
  display:flex; flex-wrap:wrap; gap:12px; justify-content:space-between;
  font-size:10.5px; letter-spacing:.05em; color:var(--muted);
}

@media (max-width:1024px){ .foot__in{ grid-template-columns:1fr 1fr; } }

@media (max-width:640px){ .foot__in{ grid-template-columns:1fr; gap:26px; } .foot__btm{ flex-direction:column; gap:8px; } }

.foot__social{ display:flex; gap:8px; margin-top:20px; flex-wrap:wrap; }
.foot__social a{
  width:36px; height:36px;
  display:grid; place-items:center;
  border:1px solid var(--rule); border-radius:50%;
  color:var(--ink-soft);
  transition:background .3s ease, color .3s ease, border-color .3s ease, transform .3s ease;
}
.foot__social a:hover{ background:var(--wall); border-color:var(--wall); color:var(--stone); transform:translateY(-2px); }
.foot__social svg{ width:15px !important; height:15px !important; display:block; fill:currentColor; }
.foot__social .ico-stroke{ fill:none !important; stroke:currentColor; stroke-width:1.3; }