/* KERF Technology Ltd — Machined theme
   ------------------------------------------------------------------ */
:root{
  --ink:#1B2022;
  --ink-2:#2E3538;
  --teal:#1C9AA1;
  --teal-d:#158389;
  --teal-l:#7ED4DA;
  --gold:#D9A441;
  --ground:#F2F3F3;
  --line:#D3D7D8;
  --text:#454F52;
  --muted:#6A7578;
  --white:#FFFFFF;
  --rail:88px;
  --cut:14px;
  --ease:cubic-bezier(.2,.8,.2,1);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--ground);color:var(--ink);font-family:'Barlow',system-ui,sans-serif;font-size:16px;line-height:1.5;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:var(--teal-d)}
a:hover{color:var(--teal)}
h1,h2,h3{margin:0;font-family:'Barlow Condensed',sans-serif;text-transform:uppercase;letter-spacing:.01em;font-weight:800;line-height:.95}
p{margin:0}
.cond{font-family:'Barlow Condensed',sans-serif;text-transform:uppercase;letter-spacing:.01em}
.lab{font-family:'Barlow Condensed',sans-serif;text-transform:uppercase;letter-spacing:.14em;font-size:13px;font-weight:600;color:var(--muted)}
.cut{clip-path:polygon(0 0,calc(100% - var(--cut)) 0,100% var(--cut),100% 100%,var(--cut) 100%,0 calc(100% - var(--cut)))}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:12px;height:52px;padding:0 26px;font-family:'Barlow Condensed',sans-serif;text-transform:uppercase;font-size:18px;font-weight:700;letter-spacing:.06em;text-decoration:none;border:0;cursor:pointer;transition:all .25s var(--ease);background:var(--teal);color:#fff;clip-path:polygon(0 0,calc(100% - 12px) 0,100% 12px,100% 100%,12px 100%,0 calc(100% - 12px))}
.btn:hover,.btn:focus-visible{background:var(--gold);color:var(--ink);padding-right:34px;outline:none}
.btn.o{background:var(--ink)}.btn.o:hover,.btn.o:focus-visible{background:var(--gold);color:var(--ink)}
.btn.sm{height:44px;font-size:16px;padding:0 20px}

/* Layout */
.page{display:grid;grid-template-columns:var(--rail) minmax(0,1fr);min-height:100vh}
.main{min-width:0;display:flex;flex-direction:column}
.wrap{padding-left:56px;padding-right:56px}

/* Side rail */
.rail{position:sticky;top:0;height:100vh;background:var(--ink);border-right:4px solid var(--teal);display:flex;flex-direction:column;align-items:center;justify-content:space-between;padding:24px 0}
.rail__logo{width:56px;height:200px;overflow:visible;display:flex;align-items:center;justify-content:center}
.rail__logo img{width:180px;max-width:none;height:auto;transform:rotate(-90deg);flex-shrink:0}
.rail__nav{display:flex;flex-direction:column;gap:34px;align-items:center}
.rail__nav a,.rail__foot{color:#7C878A;text-decoration:none;font-family:'Barlow Condensed',sans-serif;text-transform:uppercase;font-size:13px;letter-spacing:.14em;writing-mode:vertical-rl;transform:rotate(180deg);transition:color .25s}
.rail__nav a:hover,.rail__nav a.is-active{color:#fff}
.rail__foot{font-size:12px}

/* Top bar */
.top{position:sticky;top:0;z-index:20;height:76px;display:flex;align-items:center;justify-content:space-between;border-bottom:2px solid var(--ink);background:rgba(242,243,243,.92);backdrop-filter:blur(8px)}
.top__logo img{height:44px;width:auto}
.top__right{display:flex;align-items:center;gap:28px}
.top__nav{display:none;gap:22px}
.top__nav a{color:var(--ink);text-decoration:none;font-family:'Barlow Condensed',sans-serif;text-transform:uppercase;font-size:15px;letter-spacing:.1em;font-weight:600;position:relative;padding:4px 0}
.top__nav a::after{content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--teal);transition:width .3s var(--ease)}
.top__nav a:hover::after{width:100%}
.burger{display:none;width:44px;height:44px;background:transparent;border:2px solid var(--ink);cursor:pointer;padding:0;align-items:center;justify-content:center;flex-direction:column;gap:5px}
.burger span{display:block;width:20px;height:2px;background:var(--ink);transition:transform .3s,opacity .3s}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mobile-menu{display:none;position:fixed;inset:76px 0 0 0;background:var(--ink);z-index:19;padding:40px 24px;flex-direction:column;gap:6px}
.mobile-menu.is-open{display:flex}
.mobile-menu a{color:#fff;text-decoration:none;font-family:'Barlow Condensed',sans-serif;text-transform:uppercase;font-size:34px;font-weight:700;letter-spacing:.04em;padding:10px 0;border-bottom:1px solid var(--ink-2)}
.mobile-menu a:hover{color:var(--teal-l)}

/* Hero */
.hero{display:grid;grid-template-columns:minmax(0,1fr) 480px;min-height:620px}
.hero__copy{padding-top:72px;padding-bottom:56px;display:flex;flex-direction:column;gap:28px;justify-content:center}
.hero h1{font-size:clamp(56px,8.5vw,112px);line-height:.88}
.hero h1 em{font-style:normal;color:var(--teal)}
.hero__lead{font-size:19px;line-height:1.5;color:var(--text);max-width:540px}
.hero__cta{display:flex;gap:14px;flex-wrap:wrap}
.hero__img{margin:40px 56px 40px 0;position:relative;overflow:hidden;background:var(--ink);display:flex;align-items:flex-end;padding:28px;min-height:420px}
.hero__img img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center 45%;filter:saturate(.85) contrast(1.05)}
.hero__img::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(27,32,34,.35) 0%,rgba(27,32,34,.15) 40%,rgba(27,32,34,.88) 100%),linear-gradient(90deg,rgba(28,154,161,.18),transparent 60%);z-index:1;pointer-events:none}
.hero__img::after{content:"";position:absolute;top:0;bottom:0;left:-40%;width:40%;z-index:2;background:linear-gradient(90deg,transparent,rgba(28,154,161,.45),transparent);animation:sweep 5s ease-in-out infinite;pointer-events:none}
@keyframes sweep{0%{left:-40%}60%,100%{left:120%}}
.hero__tag{position:relative;color:#fff;font-size:26px;font-weight:700;line-height:1;border-left:4px solid var(--teal);padding-left:14px}
.hero__tag,.hero__cap{z-index:1}
.hero__cap{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;text-align:center;padding:40px;color:#7C878A;font-size:12px;line-height:1.6}

/* Numbers */
.numbers{background:var(--ink);color:#fff;display:grid;grid-template-columns:repeat(4,minmax(0,1fr))}
.tile{padding:32px 40px;border-right:1px solid var(--ink-2);display:flex;flex-direction:column;gap:6px;transition:all .3s}
.tile:last-child{border-right:0}
.tile .cond{font-size:64px;font-weight:800;line-height:1}
.tile .lab{color:#9AA5A8}
.tile:hover{background:var(--teal)}
.tile:hover .lab{color:#D3F3F5}

/* Sections */
.section{padding-top:64px;padding-bottom:48px}
.section__head{display:flex;align-items:flex-end;justify-content:space-between;gap:40px;margin-bottom:24px}
.section__head h2{font-size:clamp(40px,4.5vw,56px)}
.section__head p{max-width:400px;font-size:15px;color:var(--text);line-height:1.5}

/* Services rows */
.rows{border-top:2px solid var(--ink)}
.row{display:grid;grid-template-columns:120px 320px minmax(0,1fr);gap:24px;padding:28px 20px;border-bottom:1px solid var(--line);align-items:center;border-left:6px solid transparent;transition:transform .35s var(--ease),background .35s,border-color .35s;text-decoration:none;color:inherit}
.row:last-child{border-bottom:2px solid var(--ink)}
.row:hover{transform:translateX(10px);border-left-color:var(--teal);background:#fff}
.row__n{font-size:54px;font-weight:800;color:var(--line);transition:color .3s}
.row:hover .row__n{color:var(--teal)}
.row__t{font-size:30px;font-weight:700}
.row__d{font-size:15px;line-height:1.5;color:var(--text)}

/* Why grid */
.why{display:grid;grid-template-columns:380px minmax(0,1fr);gap:40px;padding-top:24px;padding-bottom:64px}
.why__copy{display:flex;flex-direction:column;gap:18px}
.why__copy h2{font-size:clamp(40px,4.5vw,56px)}
.why__copy p{font-size:15px;line-height:1.55;color:var(--text)}
.grid2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.card{background:#fff;padding:24px;display:flex;flex-direction:column;gap:8px;border:2px solid var(--ink);transition:all .3s}
.card strong{font-family:'Barlow Condensed',sans-serif;text-transform:uppercase;font-size:24px;font-weight:700;line-height:1.05}
.card span{font-size:14px;line-height:1.5}
.card:hover{background:var(--teal);color:#fff;border-color:var(--teal)}
.card:hover .lab{color:#D3F3F5}

/* About */
.about{background:var(--ink);color:#fff;padding-top:56px;padding-bottom:56px;display:grid;grid-template-columns:300px minmax(0,1fr);gap:40px;align-items:center}
.about__img{height:340px;background:#fff;overflow:hidden;border-bottom:6px solid var(--teal)}
.about__img img{width:100%;height:100%;object-fit:cover;object-position:center top}
.about__copy{display:flex;flex-direction:column;gap:14px}
.about__copy h2{font-size:clamp(34px,3.6vw,44px)}
.about__copy p{font-size:15px;line-height:1.55;color:#B8C1C4}
.about .lab{color:var(--teal-l)}

/* Contact */
.contact{padding-top:56px;padding-bottom:56px;display:grid;grid-template-columns:minmax(0,1fr) 520px;gap:48px}
.contact__copy{display:flex;flex-direction:column;gap:18px}
.contact__copy h2{font-size:clamp(40px,4.5vw,56px)}
.contact__copy p{font-size:15px;line-height:1.55;color:var(--text)}
.contact__links{display:flex;flex-direction:column;gap:8px;font-size:16px;font-weight:500}
.form{display:flex;flex-direction:column;gap:12px}
.form__grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.field{display:flex;flex-direction:column;gap:4px}
.in{background:#fff;border:2px solid var(--line);height:48px;padding:0 14px;font-family:inherit;font-size:15px;color:var(--ink);width:100%;transition:border-color .25s;border-radius:0;-webkit-appearance:none;appearance:none}
textarea.in{height:100px;padding:10px 14px;resize:vertical}
.in:focus{outline:none;border-color:var(--teal)}
.form__note{font-size:12px;color:var(--muted)}
.form__ok{display:none;background:#fff;border:2px solid var(--teal);padding:20px;font-size:15px}
.form.is-sent .form__ok{display:block}
.form.is-sent .form__grid,.form.is-sent .field,.form.is-sent .btn,.form.is-sent .form__note{display:none}

/* Footer */
.foot{margin-top:auto;background:var(--ink);padding:20px 56px;display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;color:#9AA5A8}
.foot img{height:34px;width:auto}
.foot a{color:#9AA5A8;text-decoration:none}.foot a:hover{color:#fff}
.foot__links{display:flex;gap:18px}

/* Scroll reveal */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.reveal.is-in{opacity:1;transform:none}
.reveal[data-delay="1"]{transition-delay:.1s}.reveal[data-delay="2"]{transition-delay:.2s}.reveal[data-delay="3"]{transition-delay:.3s}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}.hero__img::after{animation:none}html{scroll-behavior:auto}}

/* Responsive */
@media (max-width:1100px){
  .hero{grid-template-columns:minmax(0,1fr) 380px}
  .row{grid-template-columns:90px 240px minmax(0,1fr)}
  .why{grid-template-columns:1fr}
  .contact{grid-template-columns:1fr}
}
@media (max-width:900px){
  :root{--rail:0px}
  .page{grid-template-columns:1fr}
  .rail{display:none}
  .wrap{padding-left:24px;padding-right:24px}
  .top{height:68px}
  .top__logo img{height:36px}
  .top__right .lab,.top__right .btn{display:none}
  .burger{display:flex}
  .mobile-menu{inset:68px 0 0 0}
  .hero{grid-template-columns:1fr;min-height:0}
  .hero__copy{padding-top:48px;padding-bottom:32px}
  .hero__img{margin:0 0 40px 0;min-height:320px}
  .numbers{grid-template-columns:repeat(2,minmax(0,1fr))}
  .tile{padding:24px;border-bottom:1px solid var(--ink-2)}
  .tile:nth-child(2n){border-right:0}
  .tile .cond{font-size:48px}
  .section__head{flex-direction:column;align-items:flex-start;gap:12px}
  .row{grid-template-columns:1fr;gap:8px;padding:22px 16px}
  .row__n{font-size:36px}
  .row__t{font-size:26px}
  .grid2{grid-template-columns:1fr}
  .about{grid-template-columns:1fr}
  .about__img{height:300px;max-width:320px}
  .form__grid{grid-template-columns:1fr}
  .foot{padding:20px 24px;flex-direction:column;align-items:flex-start}
}
@media (min-width:901px){
  .top__nav{display:flex}
}