/* =====================================================================
   CONCEPT 04 — "BLUEPRINT"
   Technical drawing / spec sheet · paper + blueprint blue
   IBM Plex Sans / IBM Plex Mono
   ===================================================================== */

:root {
  --paper:   #eef2f6;
  --paper-2: #ffffff;
  --tint:    #e3eaf1;
  --ink:     #0d1b28;
  --ink-2:   #33475a;
  --muted:   #6b7f92;
  --line:    #c3d2e0;
  --line-2:  #d8e2ec;

  --blue:    #0b5fa5;
  --blue-d:  #07487a;
  --acc:     #00a3b8;
  --dark:    #0a1723;

  --f-disp: 'IBM Plex Sans', system-ui, sans-serif;
  --f-body: 'IBM Plex Sans', system-ui, sans-serif;
  --f-mono: 'IBM Plex Mono', ui-monospace, monospace;

  --pad: clamp(4rem, 7.5vw, 7rem);
  --gut: clamp(1.5rem, 3vw, 2.6rem);
}

body {
  background: var(--paper);
  color: var(--ink-2);
  font: 400 16px/1.68 var(--f-body);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
::selection { background: var(--acc); color: #fff; }

.mono { font: 400 .7rem/1.5 var(--f-mono); letter-spacing: .1em; text-transform: uppercase; }

/* ------------------------------------------------------------------- grid */
.grid-bg {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background-image:
    linear-gradient(var(--line-2) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-2) 1px, transparent 1px),
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 24px 24px, 24px 24px, 120px 120px, 120px 120px;
  opacity: .55;
  mask-image: radial-gradient(130% 100% at 50% 0%, #000 10%, rgba(0,0,0,.35) 70%, transparent 100%);
  -webkit-mask-image: radial-gradient(130% 100% at 50% 0%, #000 10%, rgba(0,0,0,.35) 70%, transparent 100%);
}
main, .ft { position: relative; z-index: 1; }

/* ----------------------------------------------------------------- header */
.hd { position: fixed; inset: 0 0 auto; z-index: 90; background: rgba(238,242,246,.82); backdrop-filter: blur(12px); border-bottom: 1px solid var(--line); transition: box-shadow .3s, background .3s; }
.hd.is-stuck { background: rgba(238,242,246,.95); box-shadow: 0 6px 24px rgba(13,27,40,.07); }
.hd__in { display: flex; align-items: center; gap: 1.4rem; height: 68px; }
.hd__logo { flex: none; display: flex; align-items: center; gap: .7rem; }
.hd__logo img { height: 26px; width: auto; }
.hd__rev { color: var(--muted); }
.hd__nav { display: flex; gap: 1.5rem; margin-left: auto; }
.hd__nav a {
  color: var(--ink-2); text-decoration: none; position: relative;
  font: 500 .74rem/1 var(--f-mono); letter-spacing: .1em; text-transform: uppercase;
  padding: .5rem 0; transition: color .25s;
}
.hd__nav a::after { content: ''; position: absolute; left: 0; right: 100%; bottom: .1rem; height: 2px; background: var(--acc); transition: right .3s; }
.hd__nav a:hover { color: var(--blue); }
.hd__nav a:hover::after { right: 0; }

.hd__act { display: flex; align-items: center; gap: .8rem; flex: none; }
.hd__tel { color: var(--ink); text-decoration: none; }

.seg { display: inline-flex; border: 1px solid var(--line); background: var(--paper-2); }
.seg span { padding: .48rem .68rem; font: 500 .7rem/1 var(--f-mono); letter-spacing: .08em; color: var(--muted); }
.seg__on { background: var(--ink); color: #fff !important; }
html[data-lang="en"] .seg__on { background: var(--line-2) !important; color: var(--muted) !important; }
html[data-lang="en"] .seg__off { background: var(--ink); color: #fff !important; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .4rem;
  text-decoration: none; cursor: pointer; border: 1px solid var(--ink); background: transparent; color: var(--ink);
  font: 500 .72rem/1 var(--f-mono); letter-spacing: .1em; text-transform: uppercase; padding: .78rem 1.1rem;
  transition: background .22s, color .22s, border-color .22s;
}
.btn:hover { background: var(--ink); color: #fff; }
.btn--fill { background: var(--ink); color: #fff; }
.btn--fill:hover { background: var(--blue); border-color: var(--blue); }
.btn--acc { background: var(--acc); border-color: var(--acc); color: #04252a; }
.btn--acc:hover { background: #fff; border-color: #fff; color: var(--ink); }
.btn--sm { padding: .6rem .9rem; font-size: .66rem; }

.burger { display: none; width: 40px; height: 40px; padding: 10px; }
.burger span { display: block; height: 2px; background: var(--ink); margin: 4px 0; transition: transform .3s, opacity .3s; }
html.nav-open .burger span:nth-child(1) { transform: translateY(5px) rotate(45deg); }
html.nav-open .burger span:nth-child(2) { opacity: 0; }
html.nav-open .burger span:nth-child(3) { transform: translateY(-5px) rotate(-45deg); }

/* ------------------------------------------------------------- mobile nav */
.mnav {
  position: fixed; inset: 0; z-index: 200; background: var(--paper);
  display: flex; align-items: center; clip-path: inset(0 0 100% 0);
  transition: clip-path .55s cubic-bezier(.7,0,.2,1); visibility: hidden;
}
.mnav.is-open { clip-path: inset(0 0 0 0); visibility: visible; }
.mnav__x { position: absolute; top: 1.2rem; right: 1.4rem; font-size: 2rem; color: var(--ink); }
.mnav__grid { width: 100%; }
.mnav__nav { display: grid; grid-template-columns: 1fr 1fr; gap: 0 2.5rem; border-top: 1px solid var(--line); }
.mnav__nav a {
  display: flex; gap: 1rem; align-items: baseline; text-decoration: none; color: var(--ink);
  padding: .9rem 0; border-bottom: 1px solid var(--line-2);
  font: 500 1.25rem/1.2 var(--f-disp); letter-spacing: -.01em;
}
.mnav__nav a span:first-child { color: var(--acc); font-size: .7rem; }

/* ------------------------------------------------------------------- hero */
.hero { padding: clamp(6.5rem, 10vw, 9rem) 0 clamp(3rem, 5vw, 4.5rem); }
.sheet {
  background: var(--paper-2); border: 1px solid var(--line);
  box-shadow: 0 1px 0 rgba(13,27,40,.05), 0 20px 50px -30px rgba(13,27,40,.3);
}
.sheet__head {
  display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap;
  padding: .7rem 1.2rem; border-bottom: 1px solid var(--line); color: var(--muted);
  background: var(--tint);
}
.sheet__body { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr); gap: var(--gut); padding: clamp(1.5rem, 3.5vw, 3rem) clamp(1.2rem, 3vw, 2.4rem); }
.sheet__foot { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); }
.sheet__foot li { display: flex; gap: .7rem; align-items: baseline; padding: .85rem 1.2rem; border-right: 1px solid var(--line); font-size: .8rem; color: var(--ink-2); }
.sheet__foot li:last-child { border-right: 0; }
.sheet__foot .mono { color: var(--acc); }

.hero__title { margin: 0 0 1.4rem; color: var(--ink); font: 600 clamp(2.3rem, 5.4vw, 4.5rem)/1 var(--f-disp); letter-spacing: -.04em; }
.hero__title > span { display: block; }
.hero__t2 { color: var(--blue); }
.hero__lead { margin: 0 0 1.8rem; max-width: 50ch; font-size: 1rem; }
.hero__cta { display: flex; flex-wrap: wrap; gap: .6rem; }

.hero__fig { margin: 0; }
.plate { position: relative; aspect-ratio: 4/3; border: 1px solid var(--line); background: var(--tint); overflow: hidden; }
.plate__img { position: absolute; inset: 0; }
.hero__slide { position: absolute; inset: 0; background-size: cover; background-position: center; opacity: 0; transform: scale(1.04); transition: opacity 1.1s ease, transform 7s linear; }
.hero__slide.is-active { opacity: 1; transform: scale(1); }
.dim { position: absolute; background: var(--acc); }
.dim--h { left: 6%; right: 6%; top: 12px; height: 1px; }
.dim--h::before, .dim--h::after { content: ''; position: absolute; top: -4px; width: 1px; height: 9px; background: var(--acc); }
.dim--h::before { left: 0; } .dim--h::after { right: 0; }
.dim--v { top: 8%; bottom: 8%; right: 12px; width: 1px; }
.dim--v::before, .dim--v::after { content: ''; position: absolute; left: -4px; width: 9px; height: 1px; background: var(--acc); }
.dim--v::before { top: 0; } .dim--v::after { bottom: 0; }
.dim--ht { position: absolute; left: 6%; top: 16px; color: var(--acc); background: rgba(10,23,35,.9); padding: 2px 5px; }
.dim--vt { position: absolute; right: 15px; bottom: 8%; color: var(--acc); writing-mode: vertical-rl; background: rgba(10,23,35,.9); padding: 4px 2px; }
.ctr { position: absolute; left: 12px; bottom: 10px; color: #fff; background: rgba(13,27,40,.6); padding: .2rem .4rem; letter-spacing: .18em; }
.hero__fig figcaption { display: flex; justify-content: space-between; align-items: center; margin-top: .6rem; color: var(--muted); }
.hero__dots { display: flex; gap: .3rem; }
.hero__dots button { width: 16px; height: 3px; background: var(--line); }
.hero__dots button.is-active { background: var(--acc); }

/* ----------------------------------------------------------------- ticker */
.tk { background: var(--ink); color: #cddceb; padding: .85rem 0; overflow: hidden; white-space: nowrap; }
.tk span { font: 400 .74rem/1 var(--f-mono); letter-spacing: .14em; text-transform: uppercase; padding: 0 1.2rem; }
.tk i { font-style: normal; color: var(--acc); }

/* --------------------------------------------------------------- section */
.sec { padding: var(--pad) 0; }
.sec--tint { background: var(--tint); }
.sec--dark { background: var(--dark); color: #a8bccd; }
.sec--dark .sh__t { color: #fff; }
.sec--dark .sh__l { color: #93a9bb; }

.sh { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: var(--gut); align-items: start; padding-bottom: 1.2rem; margin-bottom: clamp(2rem, 4vw, 3.2rem); border-bottom: 2px solid var(--ink); }
.sec--dark .sh { border-bottom-color: rgba(255,255,255,.2); }
.sh__n { display: grid; place-items: center; width: 44px; height: 44px; border: 1px solid var(--ink); color: var(--ink); font-weight: 600; letter-spacing: .06em; }
.sec--dark .sh__n { border-color: rgba(255,255,255,.35); color: #fff; }
.sh__k { margin: 0 0 .55rem; color: var(--acc); letter-spacing: .2em; }
.sh__k--acc { color: var(--acc); }
.sh__t { margin: 0; color: var(--ink); max-width: 24ch; font: 600 clamp(1.7rem, 3.3vw, 2.9rem)/1.06 var(--f-disp); letter-spacing: -.035em; }
.sh__t--inv { color: #fff; }
.sh__l { margin: .9rem 0 0; max-width: 58ch; }

/* ----------------------------------------------------------------- about */
.ab { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: var(--gut); align-items: start; }
.ab__t p { margin: 0 0 1.1rem; }
.ab__lead { color: var(--ink); font-size: 1.08rem; }
.ab__note { border-left: 3px solid var(--acc); padding: .3rem 0 .3rem 1rem; color: var(--ink); }
.ab__fig { margin: 0 0 1.6rem; }
.ab__fig img { width: 100%; aspect-ratio: 4/3; object-fit: cover; border: 1px solid var(--line); }
.ab__fig figcaption { margin-top: .5rem; color: var(--muted); }
.ab__l { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line); }
.ab__l li { display: grid; grid-template-columns: 3rem minmax(0, 1fr); gap: .2rem 1rem; padding: .85rem 0; border-bottom: 1px solid var(--line-2); }
.ab__l .mono { color: var(--acc); }
.ab__l b { color: var(--ink); font: 600 .95rem/1.3 var(--f-disp); }
.ab__l em { grid-column: 2; font-style: normal; font-size: .84rem; color: var(--muted); }

/* ------------------------------------------------------------------ table */
.tb { list-style: none; margin: 0; padding: 0; border: 1px solid var(--line); background: var(--paper-2); }
.tb li { display: grid; grid-template-columns: 3.6rem minmax(0, 1fr) minmax(0, 1.5fr) 8rem; gap: 1.2rem; align-items: baseline; padding: 1.2rem 1.3rem; border-bottom: 1px solid var(--line-2); transition: background .25s; }
.tb li:last-child { border-bottom: 0; }
.tb li:hover { background: var(--tint); }
.tb__n { color: var(--acc); }
.tb b { color: var(--ink); font: 600 1.05rem/1.3 var(--f-disp); letter-spacing: -.01em; }
.tb__d { font-size: .87rem; color: var(--ink-2); }
.tb a { color: var(--blue); text-decoration: none; text-align: right; letter-spacing: .12em; }
.tb a:hover { text-decoration: underline; }

/* -------------------------------------------------------------- services */
.sv { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--gut); }
.sv__h { display: flex; align-items: center; gap: .7rem; margin: 0 0 1.1rem; padding-bottom: .8rem; border-bottom: 2px solid var(--ink); color: var(--ink); font: 600 1.05rem/1 var(--f-disp); letter-spacing: -.01em; }
.sv__h .mono { color: var(--acc); }
.sv ul { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line-2); }
.sv li { display: grid; grid-template-columns: 2.8rem minmax(0, 1fr); gap: .8rem; padding: .65rem 0; border-bottom: 1px solid var(--line-2); font-size: .87rem; line-height: 1.5; }
.sv li .mono { color: var(--muted); }
.sv li:hover { color: var(--ink); }
.sv__box { margin-top: 1.3rem; border: 1px solid var(--line); background: var(--paper-2); padding: 1rem; }
.sv__box h4 { margin: 0 0 .5rem; color: var(--acc); letter-spacing: .16em; }
.sv__box p { margin: 0; font-size: .81rem; line-height: 1.6; color: var(--ink-2); }
.sv .btn { margin-top: 1.3rem; }

/* --------------------------------------------------------------- numbers */
.dgm { list-style: none; margin: 0 0 2.2rem; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: rgba(255,255,255,.14); }
.dgm li { position: relative; background: var(--dark); padding: 1.5rem 1.2rem; }
.dgm b { display: block; color: #fff; font: 600 clamp(1.9rem, 3.6vw, 3.1rem)/1 var(--f-mono); letter-spacing: -.04em; }
.dgm i { position: absolute; right: 1.2rem; top: 1.5rem; color: var(--acc); font-style: normal; }
.dgm span { display: block; margin-top: .6rem; color: #7e93a6; letter-spacing: .1em; }

.why { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: 0 2.4rem; }
.why li { display: grid; grid-template-columns: 3.2rem minmax(0, 1fr); gap: 1rem; align-items: baseline; padding: .8rem 0; border-bottom: 1px solid rgba(255,255,255,.12); font-size: .92rem; }
.why .mono { color: var(--acc); }

/* --------------------------------------------------------------- clients */
.cl { padding: clamp(2.2rem, 4vw, 3.2rem) 0; border-block: 1px solid var(--line); background: var(--paper-2); }
.cl__in { display: flex; align-items: center; gap: 1.5rem 3rem; flex-wrap: wrap; }
.cl__k { margin: 0; color: var(--muted); flex: none; }
.cl__l { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; align-items: center; gap: 1.5rem 2.6rem; }
.cl__l li { display: grid; place-items: center; height: 24px; }
.cl__l img { max-height: 100%; width: auto; opacity: .45; filter: grayscale(1); transition: opacity .3s, filter .3s; }
.cl__l li:hover img { opacity: 1; filter: grayscale(0); }

/* ------------------------------------------------------------ capabilities */
.cap { border: 1px solid var(--line); background: var(--paper-2); }
.cap__h, .cap__r { display: grid; grid-template-columns: 3.6rem minmax(0, 1fr) minmax(0, 1fr) 9rem; gap: 1.2rem; align-items: baseline; }
.cap__h { padding: .8rem 1.3rem; background: var(--ink); color: #9fb5c8; }
.cap__hcap { text-align: right; }
.cap__r { position: relative; padding: 1.05rem 1.3rem; border-bottom: 1px solid var(--line-2); }
.cap__r:last-child { border-bottom: 0; }
.cap__r:hover { background: var(--tint); }
.cap__n { color: var(--acc); }
.cap__a { color: var(--ink); font-weight: 500; font-size: .95rem; }
.cap__b { color: var(--ink-2); font: 400 .84rem/1.5 var(--f-mono); }
.cap__bar { position: absolute; right: 1.3rem; bottom: .6rem; width: 9rem; height: 3px; background: var(--line-2); }
.cap__bar i { display: block; height: 100%; width: var(--v, 0); background: var(--acc); transition: width 1.2s cubic-bezier(.2,.8,.2,1); }

/* ---------------------------------------------------------------- plates */
.pl { display: grid; grid-template-columns: repeat(6, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.pl__i { position: relative; display: block; overflow: hidden; background: var(--tint); }
.pl__i img { width: 100%; height: 100%; object-fit: cover; aspect-ratio: 4/3; transition: transform 1s cubic-bezier(.2,.7,.3,1), filter .4s; }
.pl__i:hover img { transform: scale(1.06); filter: saturate(1.15); }
.pl__n { position: absolute; left: 0; bottom: 0; padding: .28rem .55rem; background: var(--ink); color: #fff; font-size: .62rem; letter-spacing: .14em; }
.pl__i:nth-child(1) { grid-column: span 3; }
.pl__i:nth-child(2) { grid-column: span 3; }
.pl__i:nth-child(3) { grid-column: span 2; }
.pl__i:nth-child(4) { grid-column: span 2; }
.pl__i:nth-child(5) { grid-column: span 1; }
.pl__i:nth-child(6) { grid-column: span 1; }
.pl__i:nth-child(5) img, .pl__i:nth-child(6) img { aspect-ratio: 1; }

/* ------------------------------------------------------------------ certs */
.cr { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); gap: var(--gut); align-items: center; }
.cr .btn { margin-top: 1.6rem; }
.cr__sc { list-style: none; margin: 1.6rem 0 0; padding: 0; border-top: 1px solid rgba(255,255,255,.18); }
.cr__sc li { display: grid; grid-template-columns: 2.4rem minmax(0, 1fr); gap: .15rem .9rem; padding: .8rem 0; border-bottom: 1px solid rgba(255,255,255,.12); }
.cr__sc .mono { color: var(--acc); }
.cr__sc b { color: #fff; font: 500 1rem/1.25 var(--f-disp); }
.cr__sc em { grid-column: 2; font-style: normal; font-size: .82rem; line-height: 1.55; color: #8fa5b8; }
.cr__d { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.cr__d a { display: block; text-decoration: none; background: #f4f5f6; border: 1px solid rgba(255,255,255,.16); padding: .7rem; transition: border-color .3s, transform .3s; }
.cr__d a:hover { border-color: var(--acc); transform: translateY(-4px); }
.cr__dn { display: block; margin-bottom: .5rem; color: var(--muted); }
.cr__d img { width: 100%; aspect-ratio: 3/4; object-fit: contain; }

/* ---------------------------------------------------------------- contact */
.con { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr); gap: var(--gut); align-items: start; }
.ff { background: var(--paper-2); border: 1px solid var(--line); padding: clamp(1.3rem, 3vw, 2.2rem); }
.ff__h { display: flex; justify-content: space-between; padding-bottom: .8rem; margin-bottom: 1.3rem; border-bottom: 2px solid var(--ink); color: var(--muted); }
.ff__h span:last-child { color: var(--ink); }
.ff__two { display: grid; grid-template-columns: 1fr 1fr; gap: 1.1rem; }
.fld { display: block; margin-bottom: 1.05rem; }
.fld > span { display: block; margin-bottom: .4rem; color: var(--muted); }
.fld input, .fld select, .fld textarea {
  width: 100%; background: var(--paper); color: var(--ink);
  border: 1px solid var(--line); border-radius: 0; padding: .72rem .8rem;
  font-size: .9rem; transition: border-color .22s, background .22s;
}
.fld textarea { resize: vertical; min-height: 120px; }
.fld input:focus, .fld select:focus, .fld textarea:focus { outline: none; border-color: var(--acc); background: #fff; }
.fld input::placeholder, .fld textarea::placeholder { color: #9dadbd; }
.fld input.is-error, .fld textarea.is-error { border-color: #cc2b2b; }
.chk { display: flex; gap: .6rem; align-items: flex-start; margin: 0 0 1.2rem; cursor: pointer; }
.chk input { margin-top: 3px; accent-color: var(--acc); flex: none; width: 15px; height: 15px; }
.chk span { color: var(--ink-2); font-size: .72rem; line-height: 1.55; text-transform: none; letter-spacing: 0; }

.con__db { background: var(--paper-2); border: 1px solid var(--line); padding: clamp(1.3rem, 3vw, 2rem); }
.con__db h3 { margin: 0 0 .3rem; color: var(--ink); font: 600 1.3rem/1.1 var(--f-disp); letter-spacing: -.02em; }
.con__dlead { margin: 0 0 1.3rem; color: var(--acc); letter-spacing: .18em; }
.con__db dl { margin: 0; }
.con__db dl > div { display: grid; grid-template-columns: 5rem minmax(0, 1fr); gap: 1rem; align-items: baseline; padding: .8rem 0; border-top: 1px solid var(--line-2); }
.con__db dt { color: var(--muted); }
.con__db dd { margin: 0; color: var(--ink); font: 500 1rem/1.5 var(--f-disp); }
.con__db dd a { color: var(--ink); text-decoration: none; }
.con__db dd a:hover { color: var(--blue); }
.con__db address { font-style: normal; font-size: .92rem; font-family: var(--f-body); }
.con__map { position: relative; display: block; margin-top: 1rem; border: 1px solid var(--line); overflow: hidden; }
.con__map img { width: 100%; aspect-ratio: 16/9; object-fit: cover; filter: saturate(.5) contrast(1.02); transition: filter .4s; }
.con__map:hover img { filter: none; }
.con__map span { position: absolute; left: 0; bottom: 0; background: var(--ink); color: #fff; padding: .5rem .8rem; }

/* ----------------------------------------------------------------- footer */
.ft { background: var(--dark); color: #8ea5b8; padding: clamp(3rem, 5.5vw, 4.5rem) 0 1.4rem; }
.ft__top { display: grid; grid-template-columns: 1.7fr 1fr 1fr 1.2fr; gap: var(--gut); padding-bottom: 2.2rem; border-bottom: 1px solid rgba(255,255,255,.14); }
.ft__b img { height: 28px; width: auto; margin-bottom: 1rem; }
.ft__b p { margin: 0 0 1rem; font-size: .86rem; max-width: 34ch; }
.ft__r { color: #5f7385; line-height: 1.7; }
.ft__c { display: flex; flex-direction: column; gap: .5rem; align-items: flex-start; }
.ft__c h3 { margin: 0 0 .4rem; color: #fff; letter-spacing: .18em; }
.ft__c a { color: #8ea5b8; text-decoration: none; font-size: .88rem; transition: color .25s; }
.ft__c a:hover { color: var(--acc); }
.ft__c address { font-style: normal; color: #6d8296; }
.ft__bot { display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; padding-top: 1.2rem; color: #5f7385; }

.totop {
  position: fixed; right: 1.1rem; bottom: 1.1rem; z-index: 80;
  width: 40px; height: 40px; display: grid; place-items: center;
  background: var(--ink); color: #fff;
  opacity: 0; pointer-events: none; transform: translateY(8px); transition: opacity .3s, transform .3s, background .25s;
}
body:has(.ft) .totop { opacity: 1; pointer-events: auto; transform: none; }
.totop:hover { background: var(--acc); color: var(--ink); }

/* ------------------------------------------------------------ responsive */
@media (max-width: 1080px) {
  .sheet__body, .ab, .cr, .con { grid-template-columns: minmax(0, 1fr); }
  .sv { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .sv article:last-child { grid-column: span 2; }
  .dgm { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 900px) {
  .hd__nav, .hd__tel, .hd__act .btn { display: none; }
  .burger { display: block; }
  .hd__act { margin-left: auto; }
  .sheet__foot { grid-template-columns: 1fr; }
  .sheet__foot li { border-right: 0; border-bottom: 1px solid var(--line-2); }
  .sheet__foot li:last-child { border-bottom: 0; }
  .tb li { grid-template-columns: 3rem minmax(0, 1fr); }
  .tb__d, .tb a { grid-column: 2; text-align: left; }
  .pl { grid-template-columns: repeat(4, 1fr); }
  .pl__i:nth-child(n) { grid-column: span 2; }
  .ft__top { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  .sv { grid-template-columns: minmax(0, 1fr); }
  .sv article:last-child { grid-column: auto; }
  .dgm, .why { grid-template-columns: minmax(0, 1fr); }
  .sh { grid-template-columns: minmax(0, 1fr); gap: .7rem; }
  .cap__h, .cap__r { grid-template-columns: 2.6rem minmax(0, 1fr); }
  .cap__b, .cap__hcap { grid-column: 2; text-align: left; }
  .cap__bar { position: static; grid-column: 2; width: 100%; margin-top: .5rem; }
  .ff__two { grid-template-columns: 1fr; }
  .con__db dl > div { grid-template-columns: 1fr; gap: .2rem; }
  .pl { grid-template-columns: repeat(2, 1fr); }
  .pl__i:nth-child(n) { grid-column: span 2; }
  .ft__top { grid-template-columns: 1fr; }
  .mnav__nav { grid-template-columns: 1fr; }
}