/* ==========================================================================
   KS Die Casting — site stylesheet
   Palette: slate #0E1116 / steel #1B222B / accent #E2552A / paper #F6F7F9
   ========================================================================== */

:root{
  --ink:#0E1116;
  --steel:#1B222B;
  --steel-2:#2A3340;
  --line:#DDE1E7;
  --line-dark:rgba(255,255,255,.12);
  --paper:#F6F7F9;
  --white:#fff;
  --accent:#E2552A;
  --accent-dim:#C4471F;
  --muted:#5C6773;
  --muted-inv:#9AA6B2;
  --radius:4px;
  --maxw:1180px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Inter","Helvetica Neue",Helvetica,Arial,"Segoe UI",system-ui,sans-serif;
  color:var(--ink);
  background:var(--white);
  font-size:16px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}

h1,h2,h3,h4{margin:0;line-height:1.18;letter-spacing:-.015em;font-weight:650}
h1{font-size:clamp(2rem,4.2vw,3.35rem)}
h2{font-size:clamp(1.5rem,2.6vw,2.1rem)}
h3{font-size:1.16rem}
p{margin:0 0 1em}
ul{margin:0 0 1em;padding-left:1.15em}
li{margin:.3em 0}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.eyebrow{
  font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;
  color:var(--accent);font-weight:700;margin:0 0 .8em
}
.lead{font-size:1.09rem;color:var(--muted);max-width:62ch}
.small{font-size:.87rem;color:var(--muted)}
.rule{width:44px;height:3px;background:var(--accent);margin:0 0 22px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:rgba(14,17,22,.96);
  backdrop-filter:blur(8px);border-bottom:1px solid var(--line-dark)
}
.header-inner{display:flex;align-items:center;gap:28px;height:72px}
.brand{display:flex;align-items:center;gap:12px;color:#fff;margin-right:auto}
.brand-logo{height:44px;width:auto;display:block;background:#fff;padding:3px 5px;border-radius:4px}
.brand-mark{
  width:38px;height:38px;background:var(--accent);color:#fff;border-radius:3px;
  display:grid;place-items:center;font-weight:800;font-size:.95rem;letter-spacing:.02em
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text b{font-size:.94rem;font-weight:650;letter-spacing:.01em}
.brand-text span{font-size:.66rem;letter-spacing:.14em;text-transform:uppercase;color:var(--muted-inv)}
.nav{display:flex;gap:26px;align-items:center}
.nav a{color:#D5DBE2;font-size:.9rem;padding:6px 0;border-bottom:2px solid transparent}
.nav a:hover,.nav a.active{color:#fff;border-bottom-color:var(--accent)}
.nav-cta{
  border:1px solid var(--line-dark);padding:9px 18px !important;border-radius:var(--radius);
  color:#fff !important
}
.nav-cta:hover{background:var(--accent);border-color:var(--accent)}
.burger{display:none;background:none;border:0;color:#fff;font-size:1.5rem;cursor:pointer}

/* ---------- hero ---------- */
.hero{
  background:
    radial-gradient(900px 420px at 78% 8%, #EEF1F5 0%, rgba(238,241,245,0) 62%),
    linear-gradient(180deg,#FBFCFD 0%,#F1F3F6 100%);
  border-bottom:1px solid var(--line);
  overflow:hidden
}
.hero-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:56px;align-items:center;padding:76px 0 64px}
.hero h1{margin-bottom:20px}
.hero h1 em{font-style:normal;color:var(--accent)}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:26px}
.hero-figure{position:relative}
.hero-figure img{width:100%;filter:drop-shadow(0 26px 40px rgba(14,17,22,.16))}
.hero-figure::after{
  content:"";position:absolute;inset:auto -30px -18px 40px;height:70%;
  background:linear-gradient(90deg,rgba(226,85,42,.10),rgba(226,85,42,0));
  z-index:-1
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:9px;padding:13px 24px;border-radius:var(--radius);
  font-weight:600;font-size:.92rem;border:1px solid transparent;cursor:pointer;transition:.18s
}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-dim)}
.btn-ghost{border-color:#C9D0D9;color:var(--ink);background:#fff}
.btn-ghost:hover{border-color:var(--ink)}
.btn-inv{background:#fff;color:var(--ink)}
.btn-inv:hover{background:#E9ECF1}

/* ---------- stats strip ---------- */
.strip{background:var(--ink);color:#fff}
.strip-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.strip-cell{padding:28px 26px;border-right:1px solid var(--line-dark)}
.strip-cell:last-child{border-right:0}
.strip-cell b{display:block;font-size:1.6rem;font-weight:700;letter-spacing:-.02em}
.strip-cell span{font-size:.8rem;color:var(--muted-inv);letter-spacing:.04em}

/* ---------- sections ---------- */
.section{padding:78px 0}
.section.alt{background:var(--paper);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:70ch;margin-bottom:40px}
.section-head h2{margin-bottom:14px}

/* ---------- series cards ---------- */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.card{
  border:1px solid var(--line);border-radius:6px;overflow:hidden;background:#fff;
  display:flex;flex-direction:column;transition:.2s;position:relative
}
.card:hover{box-shadow:0 14px 34px rgba(14,17,22,.10);transform:translateY(-2px)}
.card-media{background:#F2F4F7;height:212px;display:grid;place-items:center;padding:14px;overflow:hidden}
.card-media img{max-height:190px;width:auto;object-fit:contain}
.card-body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1}
.card-tag{
  font-size:.66rem;letter-spacing:.14em;text-transform:uppercase;font-weight:700;
  color:var(--accent);margin-bottom:8px
}
.card h3{margin-bottom:8px}
.card p{font-size:.9rem;color:var(--muted);margin-bottom:16px}
.card ul{font-size:.86rem;color:var(--muted);margin:0 0 18px}
.card .card-cta{margin-top:auto;font-size:.86rem;font-weight:650;color:var(--ink)}
.card .card-cta::after{content:" →"}

/* ---------- feature list ---------- */
.features{display:grid;grid-template-columns:repeat(2,1fr);gap:26px 44px}
.feature{display:flex;gap:16px}
.feature-num{
  flex:0 0 34px;height:34px;border:1px solid var(--line);border-radius:50%;
  display:grid;place-items:center;font-size:.78rem;font-weight:700;color:var(--accent)
}
.feature h3{font-size:1rem;margin-bottom:6px}
.feature p{font-size:.89rem;color:var(--muted);margin:0}

/* ---------- split ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.split-media{background:#F2F4F7;border:1px solid var(--line);border-radius:6px;padding:26px}
.split-media img{margin:0 auto}

/* ---------- table ---------- */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:6px}
table{border-collapse:collapse;width:100%;font-size:.87rem;background:#fff}
th,td{padding:11px 14px;text-align:left;border-bottom:1px solid var(--line);white-space:nowrap}
th{background:#F2F4F7;font-weight:650;font-size:.78rem;letter-spacing:.03em;text-transform:uppercase;color:var(--steel-2)}
tr:last-child td{border-bottom:0}
td.num,th.num{text-align:right;font-variant-numeric:tabular-nums}

/* ---------- calculator ---------- */
.calc{display:grid;grid-template-columns:1.05fr .95fr;gap:0;border:1px solid var(--line);border-radius:8px;overflow:hidden;background:#fff}
.calc-form{padding:30px 32px}
.calc-out{background:var(--ink);color:#fff;padding:30px 32px;display:flex;flex-direction:column;justify-content:center}
.field{margin-bottom:18px}
.field label{display:block;font-size:.78rem;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);margin-bottom:7px;font-weight:650}
.field input,.field select{
  width:100%;padding:11px 13px;border:1px solid #C9D0D9;border-radius:var(--radius);
  font-size:.95rem;font-family:inherit;background:#fff;color:var(--ink)
}
.field input:focus,.field select:focus{outline:2px solid rgba(226,85,42,.25);border-color:var(--accent)}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.hint{font-size:.78rem;color:var(--muted);margin-top:6px}
.result-kn{font-size:2.6rem;font-weight:750;letter-spacing:-.03em;line-height:1}
.result-kn span{font-size:1rem;font-weight:500;color:var(--muted-inv)}
.result-model{
  margin-top:18px;padding:14px 16px;background:rgba(255,255,255,.07);
  border-left:3px solid var(--accent);border-radius:3px
}
.result-model b{font-size:1.35rem;display:block;letter-spacing:-.01em}
.result-note{font-size:.8rem;color:var(--muted-inv);margin-top:14px;line-height:1.55}

/* ---------- CTA band ---------- */
.cta-band{background:var(--steel);color:#fff;padding:64px 0}
.cta-band h2{color:#fff;margin-bottom:14px}
.cta-band p{color:var(--muted-inv);max-width:58ch}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:26px}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:#C7CFD8;padding:56px 0 30px;font-size:.86rem}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}
.site-footer h4{color:#fff;font-size:.76rem;letter-spacing:.12em;text-transform:uppercase;margin-bottom:14px}
.site-footer a{color:#C7CFD8}
.site-footer a:hover{color:#fff}
.site-footer ul{list-style:none;padding:0;margin:0}
.site-footer li{margin:.45em 0}
.footer-bottom{border-top:1px solid var(--line-dark);margin-top:38px;padding-top:20px;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;font-size:.78rem;color:#8A96A3}

/* ---------- page header (inner pages) ---------- */
.page-head{background:linear-gradient(180deg,#F8F9FB,#EFF2F6);border-bottom:1px solid var(--line);padding:58px 0 44px}
.page-head .eyebrow{margin-bottom:10px}
.page-head p{max-width:66ch;color:var(--muted);margin:14px 0 0}
.crumbs{font-size:.78rem;color:var(--muted);margin-bottom:16px}
.crumbs a:hover{color:var(--accent)}

/* ---------- product detail ---------- */
.pd{display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:start}
.pd-media{background:#F2F4F7;border:1px solid var(--line);border-radius:6px;padding:30px;position:sticky;top:96px}
.spec-list{list-style:none;padding:0;margin:0;border-top:1px solid var(--line)}
.spec-list li{display:flex;justify-content:space-between;gap:20px;padding:10px 0;border-bottom:1px solid var(--line);font-size:.9rem}
.spec-list li b{font-weight:650}
.spec-list li span{color:var(--muted)}

/* ---------- misc ---------- */
.note{background:#FFF6F2;border-left:3px solid var(--accent);padding:14px 18px;font-size:.87rem;color:#7A3A25;border-radius:3px}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:36px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.pill{display:inline-block;font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;
  border:1px solid var(--line);border-radius:100px;padding:4px 11px;color:var(--muted);margin:0 6px 6px 0}

@media (max-width:960px){
  .hero-grid,.split,.pd,.calc,.grid-2{grid-template-columns:1fr}
  .cards,.grid-3{grid-template-columns:1fr}
  .features{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .strip-grid{grid-template-columns:1fr 1fr}
  .pd-media{position:static}
  .nav{display:none;position:absolute;top:72px;left:0;right:0;background:var(--ink);
       flex-direction:column;gap:0;padding:12px 24px 20px;border-bottom:1px solid var(--line-dark)}
  .nav.open{display:flex}
  .nav a{width:100%;padding:12px 0}
  .burger{display:block}
}
@media (max-width:560px){
  .footer-grid{grid-template-columns:1fr}
  .field-row{grid-template-columns:1fr}
  .section{padding:56px 0}
}

/* image treatment: white-background renders blend into the page */
.hero-figure img{mix-blend-mode:multiply}
.split-media img{mix-blend-mode:multiply;max-height:420px;width:auto}
.card-media img{width:100%;height:auto;max-height:176px;object-fit:contain}

/* ---------- application cards ---------- */
.app-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.app-card{border:1px solid var(--line);border-radius:6px;background:#fff;overflow:hidden;display:flex;flex-direction:column}
.app-media{background:#F2F4F7;padding:16px;display:grid;place-items:center}
.app-media img{width:100%;max-width:230px;height:auto}
.app-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.app-body h3{margin:2px 0 8px;font-size:1.05rem}
.app-body p{font-size:.88rem;color:var(--muted);margin-bottom:12px}
.app-machine{margin-top:auto !important;font-size:.8rem;color:var(--ink) !important;
  border-top:1px solid var(--line);padding-top:12px;margin-bottom:0 !important}
.app-machine span{color:var(--muted);text-transform:uppercase;letter-spacing:.1em;font-size:.66rem;
  display:block;margin-bottom:2px}

/* ---------- home application strip ---------- */
.app-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.app-strip a{display:flex;gap:16px;align-items:center;border:1px solid var(--line);border-radius:6px;
  padding:16px 18px;background:#fff;transition:.18s}
.app-strip a:hover{border-color:var(--accent);box-shadow:0 8px 20px rgba(14,17,22,.06)}
.app-strip img{width:86px;height:auto;flex:0 0 86px}
.app-strip b{display:block;font-size:.92rem;margin-bottom:2px}
.app-strip span{font-size:.78rem;color:var(--muted)}

@media (max-width:960px){
  .app-grid,.app-strip{grid-template-columns:1fr}
}