/* ==========================================================================
   DuraFlux — KPS Volt Systems Pvt. Ltd.
   Single shared stylesheet. Design tokens + base + components.
   Tokens sourced from design.md (do not alter hex values).
   ========================================================================== */

/* ---------------------------------------------------------------- Tokens -- */
:root{
  --df-blue:#1E6FE8;   --df-blue-bright:#2E9BFF; --df-blue-deep:#0B4FC2;
  --df-navy:#0E2540;   --df-navy-900:#081A30;
  --df-ink:#13161C;    --df-ink-700:#2B313B;
  --df-steel-600:#5A6B82; --df-steel-400:#8E9BAD;
  --df-line:#D8DEE7;
  --df-surface:#FFFFFF; --df-bg:#F4F6F9; --df-bg-2:#EAEEF3;
  --df-success:#1FA463; --df-warn:#E0A100;
  --df-on-dark:#E7EDF5; --df-on-dark-mut:#9FB1C7;

  --df-grad-brand:linear-gradient(135deg,#2E9BFF 0%,#1E6FE8 55%,#0B4FC2 100%);
  --df-grad-hero:linear-gradient(90deg,rgba(11,30,54,.92) 0%,rgba(11,30,54,.55) 45%,rgba(11,30,54,.15) 100%);

  /* spacing 8pt */
  --s-1:4px; --s-2:8px; --s-3:12px; --s-4:16px; --s-5:24px; --s-6:32px;
  --s-7:48px; --s-8:64px; --s-9:96px; --s-10:128px;
  --container:1200px; --container-wide:1320px;
  --radius:6px; --radius-lg:10px;
  --shadow-sm:0 1px 2px rgba(13,22,40,.06),0 1px 3px rgba(13,22,40,.08);
  --shadow-md:0 8px 24px rgba(13,22,40,.10);
  --shadow-lg:0 18px 48px rgba(13,22,40,.16);
  --ease:cubic-bezier(.2,.7,.2,1);
  --dur:.28s;

  --font-display:"Saira Condensed",-apple-system,"Segoe UI",sans-serif;
  --font-body:"Inter",-apple-system,"Segoe UI",Roboto,sans-serif;

  --header-h:72px;
}

/* ----------------------------------------------------------------- Reset -- */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-behavior:smooth;}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto;}}
body{
  margin:0;
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.65;
  color:var(--df-ink-700);
  background:var(--df-surface);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img,svg,picture{display:block;max-width:100%;}
img{height:auto;}
a{color:var(--df-blue);text-decoration:none;}
button{font-family:inherit;cursor:pointer;}
ul{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{
  outline:3px solid rgba(46,155,255,.45);
  outline-offset:2px;
  border-radius:3px;
}

/* --------------------------------------------------------------- Layout -- */
.container{
  width:100%;
  max-width:var(--container);
  margin-inline:auto;
  padding-inline:var(--s-5);
}
@media (min-width:768px){.container{padding-inline:var(--s-6);}}

.section{padding-block:48px;}
@media (min-width:640px){.section{padding-block:64px;}}
@media (min-width:1024px){.section{padding-block:96px;}}
.section--tight{padding-block:40px;}
.bg-alt{background:var(--df-bg);}
.bg-alt-2{background:var(--df-bg-2);}

.skip-link{
  position:absolute;left:var(--s-4);top:-100px;z-index:1000;
  background:var(--df-blue);color:#fff;padding:var(--s-3) var(--s-5);
  border-radius:var(--radius);font-weight:600;
  transition:top var(--dur) var(--ease);
}
.skip-link:focus{top:var(--s-4);}

/* ------------------------------------------------------------ Typography -- */
.display{font-family:var(--font-display);text-transform:uppercase;color:var(--df-ink);}

.hero h1,.h1{
  font-family:var(--font-display);font-weight:800;text-transform:uppercase;
  font-size:clamp(2.4rem,9vw,4rem);line-height:.98;letter-spacing:-.01em;margin:0;
}
.h1--sm{font-size:clamp(2rem,6vw,3rem);line-height:1.02;}
.h2{
  font-family:var(--font-display);font-weight:700;text-transform:uppercase;
  font-size:clamp(1.7rem,5vw,2.125rem);line-height:1.06;letter-spacing:.01em;
  color:var(--df-ink);margin:0;
}
.h3{
  font-family:var(--font-display);font-weight:700;text-transform:uppercase;
  font-size:1.5rem;line-height:1.1;letter-spacing:.02em;color:var(--df-ink);margin:0;
}
.h4{
  font-family:var(--font-display);font-weight:600;text-transform:uppercase;
  font-size:1.1875rem;line-height:1.15;letter-spacing:.02em;color:var(--df-ink);margin:0;
}
.lead{font-size:1.125rem;line-height:1.6;color:var(--df-steel-600);max-width:68ch;}
.muted{color:var(--df-steel-600);}
.measure{max-width:68ch;}

.eyebrow{
  display:inline-flex;align-items:center;gap:var(--s-2);
  font-size:.8125rem;font-weight:700;text-transform:uppercase;letter-spacing:.16em;
  color:var(--df-blue);margin:0 0 var(--s-4);
}
.eyebrow svg{width:16px;height:16px;flex:none;}
.eyebrow--light{color:var(--df-blue-bright);}

.section-head{text-align:center;max-width:760px;margin:0 auto var(--s-7);}
.section-head .eyebrow{justify-content:center;}
.section-head .lead{margin-inline:auto;}

.on-dark{color:var(--df-on-dark);}
.on-dark .h2,.on-dark .h3,.on-dark .h4,.on-dark h1,.on-dark h2,.on-dark h3{color:#fff;}
.on-dark .lead,.on-dark p{color:var(--df-on-dark);}
.on-dark .muted{color:var(--df-on-dark-mut);}

/* -------------------------------------------------------------- Buttons -- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:var(--s-2);
  min-height:48px;padding:0 var(--s-5);border:1.5px solid transparent;
  border-radius:var(--radius);
  font-family:var(--font-body);font-size:.9375rem;font-weight:600;
  text-transform:uppercase;letter-spacing:.06em;line-height:1;
  transition:transform var(--dur) var(--ease),background var(--dur) var(--ease),
             box-shadow var(--dur) var(--ease),color var(--dur) var(--ease),
             border-color var(--dur) var(--ease);
}
.btn svg{width:18px;height:18px;flex:none;transition:transform var(--dur) var(--ease);}
.btn .arrow{transition:transform var(--dur) var(--ease);}
.btn:hover .arrow{transform:translateX(3px);}

.btn--primary{background:var(--df-blue);color:#fff;box-shadow:var(--shadow-sm);}
.btn--primary:hover{background:var(--df-blue-deep);transform:translateY(-2px);box-shadow:var(--shadow-md);}
.btn--primary:active{transform:translateY(0);background:var(--df-blue-deep);}

.btn--outline{background:transparent;border-color:var(--df-blue);color:var(--df-blue);}
.btn--outline:hover{background:var(--df-blue);color:#fff;transform:translateY(-2px);}

.btn--outline-light{background:transparent;border-color:rgba(255,255,255,.65);color:#fff;}
.btn--outline-light:hover{background:#fff;color:var(--df-navy);border-color:#fff;transform:translateY(-2px);}

.btn--lg{min-height:54px;padding:0 var(--s-6);font-size:1rem;}
.btn--block{width:100%;}

@media (prefers-reduced-motion:reduce){
  .btn,.btn:hover,.btn:active{transform:none;}
}

/* ------------------------------------------------------------- Header --- */
.df-header{
  position:sticky;top:0;z-index:100;
  background:#fff;border-bottom:1px solid var(--df-line);
  transition:box-shadow var(--dur) var(--ease);
}
.df-header.is-scrolled{box-shadow:var(--shadow-sm);}
.df-nav{
  display:flex;align-items:center;gap:var(--s-5);
  height:var(--header-h);
}
.df-nav__brand{display:flex;align-items:center;margin-right:auto;}
.df-nav__brand img{height:40px;width:auto;}
.df-nav__links{
  display:none;align-items:center;gap:var(--s-5);
}
.df-nav__link{
  position:relative;
  font-size:.9375rem;font-weight:600;text-transform:uppercase;letter-spacing:.04em;
  color:var(--df-ink-700);padding:var(--s-2) 0;
  display:inline-flex;align-items:center;min-height:44px;
}
.df-nav__link::after{
  content:"";position:absolute;left:0;bottom:6px;height:2px;width:0;
  background:var(--df-blue);transition:width var(--dur) var(--ease);
}
.df-nav__link:hover::after,
.df-nav__link.is-active::after{width:100%;}
.df-nav__link.is-active{color:var(--df-blue);}
.df-nav__cta{display:none;}

.df-burger{
  display:inline-flex;flex-direction:column;justify-content:center;gap:5px;
  width:44px;height:44px;border:1px solid var(--df-line);border-radius:var(--radius);
  background:#fff;padding:0 11px;margin-left:var(--s-3);
}
.df-burger span{display:block;height:2px;width:100%;background:var(--df-ink);
  transition:transform var(--dur) var(--ease),opacity var(--dur) var(--ease);}
.df-burger[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.df-burger[aria-expanded="true"] span:nth-child(2){opacity:0;}
.df-burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* mobile drawer */
.df-drawer{
  position:fixed;inset:var(--header-h) 0 0 auto;z-index:99;
  width:min(82vw,360px);background:var(--df-navy-900);
  transform:translateX(100%);transition:transform var(--dur) var(--ease);
  padding:var(--s-6) var(--s-5);overflow-y:auto;
  display:flex;flex-direction:column;gap:var(--s-2);
}
.df-drawer.is-open{transform:translateX(0);}
.df-drawer a{
  display:flex;align-items:center;min-height:48px;
  font-family:var(--font-display);font-size:1.25rem;text-transform:uppercase;
  letter-spacing:.03em;color:var(--df-on-dark);border-bottom:1px solid rgba(255,255,255,.08);
}
.df-drawer a.is-active{color:var(--df-blue-bright);}
.df-drawer .btn{margin-top:var(--s-5);}
.df-backdrop{
  position:fixed;inset:var(--header-h) 0 0 0;z-index:98;
  background:rgba(8,26,48,.5);opacity:0;visibility:hidden;
  transition:opacity var(--dur) var(--ease),visibility var(--dur) var(--ease);
}
.df-backdrop.is-open{opacity:1;visibility:visible;}

@media (min-width:1024px){
  .df-nav__links{display:flex;}
  .df-nav__cta{display:inline-flex;}
  .df-burger{display:none;}
  .df-drawer,.df-backdrop{display:none;}
}

/* ----------------------------------------------- Products dropdown (desktop) */
.df-nav__item--menu{position:relative;}
.df-nav__toggle{
  background:none;border:0;cursor:pointer;gap:var(--s-1);
}
.df-nav__caret{width:15px;height:15px;flex:none;transition:transform var(--dur) var(--ease);}
.df-menu{
  position:absolute;top:calc(100% + 8px);left:0;z-index:120;
  min-width:248px;
  background:var(--df-navy-900);
  border:1px solid rgba(255,255,255,.08);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-lg);
  padding:var(--s-2);
  display:flex;flex-direction:column;gap:2px;
  opacity:0;visibility:hidden;transform:translateY(6px);
  transition:opacity var(--dur) var(--ease),transform var(--dur) var(--ease),
             visibility var(--dur) var(--ease);
}
/* invisible bridge so the menu doesn't drop while moving the cursor onto it */
.df-menu::before{content:"";position:absolute;top:-10px;left:0;right:0;height:10px;}
.df-nav__item--menu:hover .df-menu,
.df-nav__item--menu:focus-within .df-menu,
.df-nav__toggle[aria-expanded="true"] + .df-menu{
  opacity:1;visibility:visible;transform:translateY(0);
}
.df-nav__item--menu:hover .df-nav__caret,
.df-nav__item--menu:focus-within .df-nav__caret,
.df-nav__toggle[aria-expanded="true"] .df-nav__caret{transform:rotate(180deg);}
.df-menu__link{
  display:flex;align-items:center;gap:var(--s-3);
  padding:var(--s-3);min-height:46px;border-radius:var(--radius);
  font-size:1rem;font-weight:600;letter-spacing:.01em;text-transform:none;
  color:var(--df-on-dark);
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease);
}
.df-menu__icon{width:22px;height:22px;flex:none;color:var(--df-blue-bright);
  transition:color var(--dur) var(--ease);}
.df-menu__link:hover,
.df-menu__link:focus-visible,
.df-menu__link.is-active{background:var(--df-blue);color:#fff;}
.df-menu__link:hover .df-menu__icon,
.df-menu__link:focus-visible .df-menu__icon,
.df-menu__link.is-active .df-menu__icon{color:#fff;}

/* ----------------------------------------------- Products group (drawer) --- */
.df-drawer__group{display:flex;flex-direction:column;}
.df-drawer__toggle{
  display:flex;align-items:center;justify-content:space-between;gap:var(--s-3);
  width:100%;min-height:48px;background:none;border:0;
  border-bottom:1px solid rgba(255,255,255,.08);
  font-family:var(--font-display);font-size:1.25rem;text-transform:uppercase;
  letter-spacing:.03em;color:var(--df-on-dark);cursor:pointer;
}
.df-drawer__toggle.is-active{color:var(--df-blue-bright);}
.df-drawer__toggle .df-nav__caret{width:18px;height:18px;}
.df-drawer__toggle[aria-expanded="true"] .df-nav__caret{transform:rotate(180deg);}
.df-drawer__sub{display:flex;flex-direction:column;padding-left:var(--s-4);}
.df-drawer__sub[hidden]{display:none;}
.df-drawer__sub a{font-size:1.1rem;}

/* --------------------------------------------------------------- Hero --- */
.hero{
  position:relative;
  min-height:70vh;display:flex;align-items:center;
  color:#fff;overflow:hidden;
}
@media (min-width:1024px){.hero{min-height:88vh;}}
.hero--inner{min-height:56vh;}
@media (min-width:1024px){.hero--inner{min-height:62vh;}}
.hero__media{
  position:absolute;inset:0;z-index:0;
  background:var(--df-navy);
  background-size:cover;background-position:center;
  filter:saturate(.8);
}
.hero__media::after{
  content:"";position:absolute;inset:0;background:var(--df-grad-hero);
}
.hero__media--transformers{background-image:linear-gradient(120deg,#0c1f38,#163a63 60%,#1E6FE8);}
.hero__media--batteries{background-image:linear-gradient(120deg,#0c1f38,#10324f 55%,#1FA463);}
.hero__media--inverters{background-image:linear-gradient(120deg,#0c1f38,#15355a 55%,#2E9BFF);}
.hero__media--about{background-image:linear-gradient(120deg,#081A30,#102a4a 70%,#1E6FE8);}
.hero__media--contact{background-image:linear-gradient(120deg,#0c1f38,#123056 65%,#0B4FC2);}
.hero__media--quality{background-image:linear-gradient(120deg,#081A30,#10324f 60%,#1FA463);}
/* faint engineered grid texture */
.hero__media::before{
  content:"";position:absolute;inset:0;z-index:1;opacity:.18;
  background-image:linear-gradient(rgba(255,255,255,.08) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.08) 1px,transparent 1px);
  background-size:48px 48px;
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 70%);
          mask-image:linear-gradient(90deg,transparent,#000 70%);
}
.hero__inner{position:relative;z-index:2;width:100%;padding-block:var(--s-9) var(--s-8);}
.hero__content{max-width:640px;}
.hero h1{margin-bottom:var(--s-4);}
.hero h1 .block{display:block;}
.hero h1 .accent{color:var(--df-blue-bright);}
.hero__sub{font-size:1.125rem;line-height:1.6;color:var(--df-on-dark);margin-bottom:var(--s-4);max-width:52ch;}
.hero__spec{
  display:inline-flex;align-items:center;gap:var(--s-2);
  font-weight:600;color:var(--df-blue-bright);letter-spacing:.02em;margin-bottom:var(--s-6);
}
.hero__spec svg{width:18px;height:18px;}
.hero__actions{display:flex;flex-wrap:wrap;gap:var(--s-3);margin-bottom:var(--s-7);}
.hero__stats{
  display:flex;flex-wrap:wrap;gap:var(--s-5) 0;
  border-top:1px solid rgba(255,255,255,.14);padding-top:var(--s-5);max-width:560px;
}
.hero__stat{padding-inline:var(--s-5);position:relative;flex:1;min-width:120px;}
.hero__stat:first-child{padding-left:0;}
.hero__stat + .hero__stat::before{
  content:"";position:absolute;left:0;top:4px;bottom:4px;width:1px;background:rgba(255,255,255,.18);
}
.hero__stat b{
  display:block;font-family:var(--font-display);font-weight:800;font-size:1.75rem;
  line-height:1;color:#fff;
}
.hero__stat span{font-size:.75rem;text-transform:uppercase;letter-spacing:.1em;color:var(--df-on-dark-mut);}

/* --------------------------------------------------------- Stat band ---- */
.stat-band{
  position:relative;background:var(--df-navy-900);color:#fff;overflow:hidden;
  padding-block:var(--s-8);
}
.stat-band::before{
  content:"";position:absolute;inset:0;opacity:.06;
  background:linear-gradient(2deg,transparent 45%,var(--df-blue-bright) 50%,transparent 55%);
}
.stat-grid{
  position:relative;display:grid;grid-template-columns:repeat(2,1fr);gap:var(--s-6) var(--s-4);
}
@media (min-width:768px){.stat-grid{grid-template-columns:repeat(4,1fr);}}
.stat{text-align:center;position:relative;}
@media (min-width:768px){
  .stat + .stat::before{
    content:"";position:absolute;left:0;top:10%;bottom:10%;width:1px;background:rgba(255,255,255,.14);
  }
}
.stat__num{
  font-family:var(--font-display);font-weight:800;
  font-size:clamp(2.4rem,8vw,3.5rem);line-height:1;letter-spacing:-.01em;
  color:var(--df-blue-bright);
}
.stat__label{
  display:block;margin-top:var(--s-2);font-size:.8125rem;font-weight:600;
  text-transform:uppercase;letter-spacing:.12em;color:var(--df-on-dark-mut);
}

/* ----------------------------------------------------- Division cards --- */
.divisions{
  display:grid;gap:var(--s-5);
  grid-template-columns:1fr;
}
@media (min-width:768px){.divisions{grid-template-columns:repeat(3,1fr);}}

.dcard{
  position:relative;display:flex;flex-direction:column;
  background:var(--df-surface);border:1px solid var(--df-line);
  overflow:hidden;border-radius:var(--radius);
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.dcard::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:var(--df-grad-brand);transform:scaleX(0);transform-origin:left;
  transition:transform var(--dur) var(--ease);z-index:2;
}
.dcard:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);}
.dcard:hover::before{transform:scaleX(1);}
.dcard__media{
  position:relative;aspect-ratio:16/10;overflow:hidden;
  display:flex;align-items:flex-end;padding:var(--s-4);
  clip-path:polygon(0 0,100% 0,100% 100%,0 92%);
}
.dcard__media--t{background:linear-gradient(135deg,#13315a,#1E6FE8);}
.dcard__media--b{background:linear-gradient(135deg,#0f3a2e,#1FA463);}
.dcard__media--i{background:linear-gradient(135deg,#10355c,#2E9BFF);}
.dcard__media svg{width:96px;height:96px;opacity:.9;color:rgba(255,255,255,.9);
  position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);transition:transform var(--dur) var(--ease);}
.dcard:hover .dcard__media svg{transform:translate(-50%,-50%) scale(1.06);}
.dcard__tag{
  position:relative;z-index:1;font-size:.75rem;font-weight:600;text-transform:uppercase;
  letter-spacing:.12em;color:#fff;background:rgba(8,26,48,.55);
  padding:var(--s-1) var(--s-3);border-radius:100px;backdrop-filter:blur(2px);
}
.dcard__body{padding:var(--s-5);display:flex;flex-direction:column;gap:var(--s-3);flex:1;}
.dcard__body .h3{margin-bottom:var(--s-1);}
.dcard__spec{
  display:inline-block;font-family:var(--font-display);font-weight:700;
  color:var(--df-blue);letter-spacing:.02em;font-size:1.05rem;
}
.dcard__list{display:flex;flex-direction:column;gap:var(--s-2);}
.dcard__list li{display:flex;gap:var(--s-2);font-size:.9375rem;color:var(--df-steel-600);}
.dcard__list svg{width:18px;height:18px;color:var(--df-blue);flex:none;margin-top:3px;}
.dcard__link{
  margin-top:auto;display:inline-flex;align-items:center;gap:var(--s-2);
  font-weight:600;text-transform:uppercase;letter-spacing:.04em;font-size:.875rem;
  color:var(--df-blue);
}
.dcard__link svg{width:18px;height:18px;transition:transform var(--dur) var(--ease);}
.dcard:hover .dcard__link svg{transform:translateX(3px);}

/* ----------------------------------------------------- Split / about --- */
.split{display:grid;gap:var(--s-7);align-items:center;}
@media (min-width:900px){.split{grid-template-columns:1fr 1fr;gap:var(--s-8);}}
.split--rev .split__media{order:-1;}
@media (min-width:900px){.split--rev .split__media{order:0;}}
.split__body p{margin-bottom:var(--s-4);}
.split__body .btn{margin-top:var(--s-3);}
.story__logo{display:block;width:auto;height:auto;max-width:260px;margin:0 0 var(--s-5);}
.split__media{
  position:relative;aspect-ratio:4/3;border-radius:var(--radius);overflow:hidden;
  clip-path:polygon(0 8%,8% 0,100% 0,100% 100%,0 100%);
  background:linear-gradient(135deg,#0e2540,#1E6FE8);
  display:flex;align-items:center;justify-content:center;
}
.split__media--factory{background:linear-gradient(135deg,#13315a,#3b5474);}
.split__media svg{width:120px;height:120px;color:rgba(255,255,255,.85);}
.split__media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 55%,rgba(8,26,48,.45));
}

/* ----------------------------------------------- Why-choose feature grid */
.features{
  display:grid;gap:var(--s-6) var(--s-7);
  grid-template-columns:1fr;
}
@media (min-width:640px){.features{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.features{grid-template-columns:repeat(3,1fr);}}
.feature{display:flex;flex-direction:column;gap:var(--s-3);
  padding-bottom:var(--s-5);border-bottom:1px solid var(--df-line);}
.feature__icon{
  width:48px;height:48px;display:flex;align-items:center;justify-content:center;
  border:1.5px solid var(--df-line);border-radius:var(--radius);color:var(--df-blue);
  background:var(--df-bg);
}
.feature__icon svg{width:26px;height:26px;}
.feature p{font-size:.9375rem;color:var(--df-steel-600);}

/* ----------------------------------------------------- Quality band ---- */
.quality{position:relative;background:var(--df-navy);color:#fff;overflow:hidden;}
.quality__wedge{
  position:absolute;inset:0 0 0 auto;width:42%;z-index:0;display:none;
  background:linear-gradient(135deg,#13315a,#1E6FE8);
  clip-path:polygon(22% 0,100% 0,100% 100%,0 100%);
}
.quality__wedge svg{position:absolute;top:50%;right:18%;transform:translateY(-50%);
  width:120px;height:120px;color:rgba(255,255,255,.85);}
.quality__wedge img{filter:saturate(.85);}
.quality__wedge::after{content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(90deg,var(--df-navy) 0%,rgba(14,37,64,.55) 30%,rgba(14,37,64,.2) 100%);}
@media (min-width:900px){.quality__wedge{display:block;}}
.quality__inner{position:relative;z-index:1;}
@media (min-width:900px){.quality__inner{max-width:54%;}}
.chips{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--s-4);margin-top:var(--s-6);}
.chip{display:flex;align-items:center;gap:var(--s-3);
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);
  border-radius:var(--radius);padding:var(--s-4);}
.chip__ic{
  width:42px;height:42px;flex:none;border-radius:50%;
  border:1.5px solid var(--df-blue-bright);color:var(--df-blue-bright);
  display:flex;align-items:center;justify-content:center;
}
.chip__ic svg{width:22px;height:22px;}
.chip b{font-family:var(--font-display);text-transform:uppercase;letter-spacing:.03em;
  color:#fff;font-size:1.0625rem;display:block;}
.chip span{font-size:.8125rem;color:var(--df-on-dark-mut);}

/* ----------------------------------------------------- Industries grid - */
.industries{
  display:grid;gap:var(--s-4);grid-template-columns:repeat(2,1fr);
}
@media (min-width:640px){.industries{grid-template-columns:repeat(3,1fr);}}
@media (min-width:1024px){.industries{grid-template-columns:repeat(4,1fr);}}
.ind{
  display:flex;flex-direction:column;align-items:center;text-align:center;gap:var(--s-3);
  padding:var(--s-5) var(--s-3);background:var(--df-surface);
  border:1px solid var(--df-line);border-radius:var(--radius);
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.ind:hover{transform:translateY(-3px);border-color:var(--df-blue);}
.ind__ic{
  width:56px;height:56px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  background:var(--df-bg);color:var(--df-blue);border:1px solid var(--df-line);
}
.ind__ic svg{width:30px;height:30px;}
.ind span{font-size:.875rem;font-weight:600;color:var(--df-ink-700);line-height:1.3;}

/* -------------------------------------------------------- Spec / list --- */
.spec-grid{display:grid;gap:var(--s-5);grid-template-columns:1fr;}
@media (min-width:768px){.spec-grid{grid-template-columns:repeat(2,1fr);}}
.spec-card{
  background:var(--df-surface);border:1px solid var(--df-line);border-radius:var(--radius);
  padding:var(--s-6);position:relative;overflow:hidden;
}
.spec-card::before{
  content:"";position:absolute;top:0;left:0;width:6px;height:100%;background:var(--df-grad-brand);
}
.spec-card__photo{
  position:relative;margin:calc(-1 * var(--s-6)) calc(-1 * var(--s-6)) var(--s-5);
  aspect-ratio:16/9;overflow:hidden;background:var(--df-navy);
}
.spec-card__photo img{position:absolute;inset:0;width:100%;height:100%;
  object-fit:cover;object-position:center;filter:saturate(.85);
  transition:transform var(--dur) var(--ease);}
.spec-card:hover .spec-card__photo img{transform:scale(1.04);}
.spec-card .h3{margin-bottom:var(--s-3);}
.spec-card__range{
  display:inline-block;font-family:var(--font-display);font-weight:700;color:var(--df-blue);
  font-size:1.25rem;margin-bottom:var(--s-4);letter-spacing:.02em;
}
.ticks{display:flex;flex-direction:column;gap:var(--s-3);}
.ticks li{display:flex;gap:var(--s-3);align-items:flex-start;color:var(--df-ink-700);}
.ticks svg{width:20px;height:20px;color:var(--df-blue);flex:none;margin-top:3px;}

.pill-grid{display:flex;flex-wrap:wrap;gap:var(--s-3);}
.pill{
  display:inline-flex;align-items:center;gap:var(--s-2);
  background:var(--df-surface);border:1px solid var(--df-line);border-radius:100px;
  padding:var(--s-3) var(--s-5);font-weight:500;color:var(--df-ink-700);font-size:.9375rem;
}
.pill svg{width:18px;height:18px;color:var(--df-blue);}

/* ------------------------------------------------------------ CTA band -- */
.cta-band{position:relative;background:var(--df-navy-900);color:#fff;overflow:hidden;}
.cta-band::before{content:"";position:absolute;inset:0;background:var(--df-grad-hero);opacity:.4;}
.cta-band__inner{
  position:relative;z-index:1;display:flex;flex-direction:column;gap:var(--s-5);
  align-items:flex-start;
}
@media (min-width:900px){
  .cta-band__inner{flex-direction:row;align-items:center;justify-content:space-between;gap:var(--s-7);}
}
.cta-band .h2{color:#fff;max-width:22ch;}
.cta-band__actions{display:flex;flex-wrap:wrap;gap:var(--s-3);}

/* --------------------------------------------------------------- Footer - */
.df-footer{background:var(--df-navy-900);color:var(--df-on-dark);}
.df-footer__top{
  display:grid;gap:var(--s-7);padding-block:var(--s-8);
  grid-template-columns:1fr;
}
@media (min-width:768px){.df-footer__top{grid-template-columns:1fr 1fr;}}
@media (min-width:1024px){.df-footer__top{grid-template-columns:1.1fr 1fr 1.3fr;}}
.df-footer__brand img{height:44px;margin-bottom:var(--s-4);}
.df-footer__brand p{color:var(--df-on-dark-mut);font-size:.9375rem;margin-bottom:var(--s-4);max-width:34ch;}
.kps-badge{
  display:inline-flex;align-items:center;gap:var(--s-2);
  font-size:.75rem;text-transform:uppercase;letter-spacing:.1em;font-weight:600;
  color:var(--df-on-dark);border:1px solid rgba(255,255,255,.16);
  border-radius:100px;padding:var(--s-2) var(--s-4);
}
.kps-badge svg{width:16px;height:16px;color:var(--df-blue-bright);}
.foot-title{
  font-family:var(--font-display);text-transform:uppercase;letter-spacing:.04em;
  font-size:1.0625rem;color:#fff;margin-bottom:var(--s-4);
}
.foot-contact li{display:flex;gap:var(--s-3);margin-bottom:var(--s-4);font-size:.9375rem;}
.foot-contact a{color:var(--df-on-dark);}
.foot-contact a:hover{color:var(--df-blue-bright);}
.foot-contact svg{width:20px;height:20px;color:var(--df-blue-bright);flex:none;margin-top:2px;}

.df-footer__bottom{
  border-top:1px solid rgba(255,255,255,.1);padding-block:var(--s-5);
  display:flex;flex-direction:column;gap:var(--s-3);
  font-size:.8125rem;color:var(--df-on-dark-mut);
}
@media (min-width:768px){
  .df-footer__bottom{flex-direction:row;align-items:center;justify-content:space-between;}
}
.df-footer__bottom nav{display:flex;flex-wrap:wrap;gap:var(--s-4);}
.df-footer__bottom a{color:var(--df-on-dark-mut);}
.df-footer__bottom a:hover{color:#fff;}

/* ----------------------------------------------------------------- Form - */
.form{display:flex;flex-direction:column;gap:var(--s-4);}
.form__row{display:grid;gap:var(--s-4);grid-template-columns:1fr;}
@media (min-width:560px){.form__row--2{grid-template-columns:1fr 1fr;}}
.field{display:flex;flex-direction:column;gap:var(--s-2);}
.field label{
  font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.08em;
  color:var(--df-steel-600);
}
.field .req{color:var(--df-blue);}
.field input,.field select,.field textarea{
  width:100%;min-height:48px;padding:0 var(--s-4);
  background:var(--df-surface);border:1px solid var(--df-line);border-radius:var(--radius);
  font-family:var(--font-body);font-size:.9375rem;color:var(--df-ink);
  transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.field textarea{min-height:120px;padding-block:var(--s-3);resize:vertical;line-height:1.5;}
.field select{appearance:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='none' stroke='%235A6B82' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M4 6l4 4 4-4'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right var(--s-4) center;padding-right:var(--s-7);}
.field input::placeholder,.field textarea::placeholder{color:var(--df-steel-400);}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--df-blue);box-shadow:0 0 0 3px rgba(46,155,255,.2);
}
.field.has-error input,.field.has-error select,.field.has-error textarea{
  border-color:var(--df-warn);box-shadow:0 0 0 3px rgba(224,161,0,.18);
}
.field__error{font-size:.8125rem;color:var(--df-warn);min-height:1em;display:none;}
.field.has-error .field__error{display:block;}

.form__status{
  display:none;align-items:center;gap:var(--s-2);padding:var(--s-3) var(--s-4);
  border-radius:var(--radius);font-size:.9375rem;font-weight:500;
}
.form__status svg{width:20px;height:20px;flex:none;}
.form__status.is-success{display:flex;background:rgba(31,164,99,.12);color:var(--df-success);
  border:1px solid rgba(31,164,99,.4);}
.form__status.is-error{display:flex;background:rgba(224,161,0,.12);color:#9a6f00;
  border:1px solid rgba(224,161,0,.4);}

/* footer-variant (form on navy) */
.form--dark .field label{color:var(--df-on-dark-mut);}
.form--dark .field input,.form--dark .field select,.form--dark .field textarea{
  background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.16);color:#fff;
}
.form--dark .field input::placeholder,.form--dark .field textarea::placeholder{color:var(--df-on-dark-mut);}
.form--dark .field select{color:#fff;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='none' stroke='%239FB1C7' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M4 6l4 4 4-4'/%3E%3C/svg%3E");}
.form--dark .field select option{color:var(--df-ink);}
.form--dark .field input:focus,.form--dark .field select:focus,.form--dark .field textarea:focus{
  border-color:var(--df-blue-bright);box-shadow:0 0 0 3px rgba(46,155,255,.25);
}

/* ---------------------------------------------------- Contact page bits - */
.contact-grid{display:grid;gap:var(--s-7);grid-template-columns:1fr;}
@media (min-width:900px){.contact-grid{grid-template-columns:1.1fr .9fr;}}
.info-card{background:var(--df-surface);border:1px solid var(--df-line);border-radius:var(--radius);
  padding:var(--s-6);}
.info-list li{display:flex;gap:var(--s-3);margin-bottom:var(--s-5);}
.info-list li:last-child{margin-bottom:0;}
.info-list__ic{width:44px;height:44px;flex:none;border-radius:var(--radius);
  background:var(--df-bg);border:1px solid var(--df-line);color:var(--df-blue);
  display:flex;align-items:center;justify-content:center;}
.info-list__ic svg{width:22px;height:22px;}
.info-list b{display:block;font-family:var(--font-display);text-transform:uppercase;
  letter-spacing:.03em;color:var(--df-ink);font-size:1rem;margin-bottom:2px;}
.info-list a,.info-list p{color:var(--df-steel-600);font-size:.9375rem;}
.info-list a:hover{color:var(--df-blue);}
.quick-actions{display:flex;flex-wrap:wrap;gap:var(--s-3);margin-top:var(--s-5);}
.contact-photo{
  position:relative;margin:var(--s-7) 0 0;aspect-ratio:16/8;overflow:hidden;
  border:1px solid var(--df-line);border-radius:var(--radius);background:var(--df-navy);
}
.contact-photo img{position:absolute;inset:0;width:100%;height:100%;
  object-fit:cover;object-position:center;filter:saturate(.85);}
.map-embed{border:1px solid var(--df-line);border-radius:var(--radius);overflow:hidden;
  margin-top:var(--s-5);aspect-ratio:16/7;}
.map-embed iframe{width:100%;height:100%;border:0;display:block;}

/* ----------------------------------------------------- Floating WhatsApp */
.wa-float{
  position:fixed;right:18px;bottom:18px;z-index:90;
  width:56px;height:56px;border-radius:50%;
  background:#25D366;color:#fff;display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 22px rgba(37,211,102,.4);
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.wa-float:hover{transform:scale(1.08);box-shadow:0 10px 26px rgba(37,211,102,.5);}
.wa-float svg{width:30px;height:30px;}
@media (min-width:1024px){.wa-float{right:28px;bottom:28px;}}

/* -------------------------------------------------------- Misc helpers -- */
.lead-list{display:flex;flex-direction:column;gap:var(--s-3);margin-top:var(--s-4);}
.lead-list li{display:flex;gap:var(--s-3);align-items:flex-start;color:var(--df-steel-600);}
.lead-list svg{width:20px;height:20px;color:var(--df-blue);flex:none;margin-top:3px;}
.client-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--s-3);}
@media (min-width:640px){.client-grid{grid-template-columns:repeat(4,1fr);}}
.client{
  display:flex;align-items:center;justify-content:center;text-align:center;
  font-family:var(--font-display);font-weight:700;letter-spacing:.04em;
  color:var(--df-ink);background:var(--df-surface);border:1px solid var(--df-line);
  border-radius:var(--radius);padding:var(--s-5) var(--s-3);min-height:72px;
  transition:border-color var(--dur) var(--ease),color var(--dur) var(--ease);
}
.client:hover{border-color:var(--df-blue);color:var(--df-blue);}

.vm-grid{display:grid;gap:var(--s-5);grid-template-columns:1fr;}
@media (min-width:768px){.vm-grid{grid-template-columns:1fr 1fr;}}
@media (min-width:992px){.vm-grid--3{grid-template-columns:repeat(3,1fr);}}
.vm-card{background:var(--df-surface);border:1px solid var(--df-line);border-radius:var(--radius);
  padding:var(--s-6);position:relative;}
.vm-card .feature__icon{margin-bottom:var(--s-4);}
.vm-card__intro{font-size:.9375rem;color:var(--df-steel-600);margin-bottom:var(--s-4);}

/* ----------------------------------------------------- Process steps ---- */
.steps{display:grid;gap:var(--s-5);grid-template-columns:1fr;}
@media (min-width:640px){.steps{grid-template-columns:1fr 1fr;}}
@media (min-width:992px){.steps{grid-template-columns:repeat(4,1fr);}}
.step{position:relative;text-align:center;padding:var(--s-6) var(--s-5);
  background:var(--df-surface);border:1px solid var(--df-line);border-radius:var(--radius);}
.step__num{font-family:var(--font-head,inherit);font-size:.8125rem;font-weight:700;
  letter-spacing:.16em;text-transform:uppercase;color:var(--df-blue);margin-bottom:var(--s-3);}
.step .feature__icon{margin:0 auto var(--s-4);}
.step .h3{margin-bottom:var(--s-2);}
.step p{font-size:.9375rem;color:var(--df-steel-600);}

.crosslink{display:grid;gap:var(--s-4);grid-template-columns:1fr;}
@media (min-width:640px){.crosslink{grid-template-columns:1fr 1fr;}}
.crosslink a{
  display:flex;align-items:center;justify-content:space-between;gap:var(--s-4);
  padding:var(--s-5);background:var(--df-surface);border:1px solid var(--df-line);
  border-radius:var(--radius);color:var(--df-ink);
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.crosslink a:hover{transform:translateY(-3px);border-color:var(--df-blue);}
.crosslink b{font-family:var(--font-display);text-transform:uppercase;letter-spacing:.03em;font-size:1.125rem;}
.crosslink span{color:var(--df-steel-600);font-size:.875rem;}
.crosslink svg{width:24px;height:24px;color:var(--df-blue);flex:none;}

/* ----------------------------------------------------- Scroll reveal ---- */
.reveal{opacity:0;transform:translateY(16px);
  transition:opacity .5s var(--ease),transform .5s var(--ease);}
.reveal.is-visible{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none;}
  .dcard,.ind,.crosslink a,.btn{transition:none;}
}

/* ===================================================== Hero slideshow ==== */
.hero-slider{
  position:relative;min-height:70vh;overflow:hidden;
  background:var(--df-navy);color:#fff;
}
@media (min-width:1024px){.hero-slider{min-height:88vh;}}

.hero-slide{
  position:absolute;inset:0;
  display:flex;align-items:center;
  opacity:0;visibility:hidden;
  transition:opacity .7s var(--ease),visibility .7s var(--ease);
}
.hero-slide.is-active{opacity:1;visibility:visible;z-index:1;}

.hero-slide__img{
  position:absolute;inset:0;width:100%;height:100%;
  object-fit:cover;object-position:center;
  filter:saturate(.85);z-index:0;
}
.hero-slide--mobility .hero-slide__img{object-position:35% 55%;}
.hero-slide::after{
  content:"";position:absolute;inset:0;z-index:1;background:var(--df-grad-hero);
}
.hero-slide__inner{position:relative;z-index:2;width:100%;
  padding-block:var(--s-9) var(--s-8);}
.hero-slide__content{max-width:640px;}
.hero-slide__content h1,.hero-slide__content .hero-h1{
  font-family:var(--font-display);font-weight:800;text-transform:uppercase;
  font-size:clamp(2.4rem,9vw,4rem);line-height:.98;letter-spacing:-.01em;
  margin:0 0 var(--s-4);color:#fff;
}
.hero-slide__content .block{display:block;}
.hero-slide__content .accent{color:var(--df-blue-bright);}
.hero-slide__content .hero__sub{margin-bottom:var(--s-6);}

/* Slider controls */
.hero-slider__controls{
  position:absolute;left:0;right:0;bottom:var(--s-6);z-index:5;
  display:flex;align-items:center;justify-content:center;gap:var(--s-4);
}
.hero-slider__dots{display:flex;align-items:center;gap:var(--s-3);}
.hero-dot{
  width:36px;height:6px;padding:0;border:0;border-radius:100px;
  background:rgba(255,255,255,.28);
  transition:background var(--dur) var(--ease),width var(--dur) var(--ease);
}
.hero-dot[aria-current="true"]{background:var(--df-blue-bright);width:48px;}
.hero-dot:hover{background:rgba(255,255,255,.55);}

.hero-arrow{
  width:48px;height:48px;flex:none;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:rgba(8,26,48,.4);border:1.5px solid rgba(255,255,255,.4);color:#fff;
  -webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);
  transition:background var(--dur) var(--ease),border-color var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.hero-arrow:hover{background:var(--df-blue);border-color:var(--df-blue);transform:scale(1.06);}
.hero-arrow svg{width:22px;height:22px;}

@media (max-width:639px){
  .hero-arrow{width:42px;height:42px;}
  .hero-slider__controls{gap:var(--s-3);bottom:var(--s-5);}
  .hero-dot{width:28px;}
  .hero-dot[aria-current="true"]{width:38px;}
}

@media (prefers-reduced-motion:reduce){
  .hero-slide{transition:none;}
  .hero-arrow:hover{transform:none;}
}

/* ===================================================== Image media ======= */
/* Environmental/field shots: cover, navy overlay OK for legibility. */
.img-cover{
  position:absolute;inset:0;width:100%;height:100%;
  object-fit:cover;object-position:center;
}

/* Replaces the CSS-gradient hero on inner pages with a real photo. */
.hero__media img{
  position:absolute;inset:0;width:100%;height:100%;
  object-fit:cover;object-position:center;z-index:0;filter:saturate(.85);
}
.hero__media--photo{background:var(--df-navy);background-image:none;}
.hero__media--photo::before{display:none;}

/* Division/split cards now hold real photos behind the chevron clip. */
.dcard__media{padding:0;}
.dcard__media img{position:absolute;inset:0;width:100%;height:100%;
  object-fit:cover;object-position:center;z-index:0;
  transition:transform var(--dur) var(--ease);}
.dcard:hover .dcard__media img{transform:scale(1.04);}
.dcard__media::after{content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(180deg,rgba(8,26,48,.05) 40%,rgba(8,26,48,.55));}
.dcard__media .dcard__tag{position:absolute;left:var(--s-4);bottom:var(--s-4);z-index:2;}

.split__media img{position:absolute;inset:0;width:100%;height:100%;
  object-fit:cover;object-position:center;z-index:0;}
.split__media--photo{background:var(--df-navy);}

/* WHITE-bg studio shots: contain on a light/steel panel, never duotone. */
.studio-panel{
  position:relative;display:flex;align-items:center;justify-content:center;
  background:radial-gradient(120% 120% at 50% 25%,#fff 0%,var(--df-bg) 70%,var(--df-bg-2) 100%);
  border:1px solid var(--df-line);border-radius:var(--radius);overflow:hidden;
  padding:var(--s-6);
}
.studio-panel img{
  width:100%;height:100%;object-fit:contain;object-position:center;
}
.dcard__media.studio-panel{aspect-ratio:16/10;clip-path:polygon(0 0,100% 0,100% 100%,0 92%);}
.dcard__media.studio-panel::after{display:none;}
.dcard__media.studio-panel img{position:static;transition:transform var(--dur) var(--ease);}
.dcard:hover .dcard__media.studio-panel img{transform:scale(1.04);}
.split__media.studio-panel{aspect-ratio:4/3;}
.split__media.studio-panel::after{display:none;}
.split__media.studio-panel img{position:static;}

/* ===================================================== Product gallery === */
.gallery{
  display:grid;gap:var(--s-4);grid-template-columns:repeat(2,1fr);
}
@media (min-width:640px){.gallery{grid-template-columns:repeat(3,1fr);}}
@media (min-width:1024px){.gallery{grid-template-columns:repeat(4,1fr);}}
.gallery__item{
  position:relative;aspect-ratio:4/3;overflow:hidden;
  border:1px solid var(--df-line);border-radius:var(--radius);background:var(--df-navy);
}
.gallery__item img{position:absolute;inset:0;width:100%;height:100%;
  object-fit:cover;object-position:center;
  transition:transform var(--dur) var(--ease);}
.gallery__item:hover img{transform:scale(1.05);}
.gallery__item--studio{background:radial-gradient(120% 120% at 50% 25%,#fff 0%,var(--df-bg) 70%,var(--df-bg-2) 100%);}
.gallery__item--studio img{object-fit:contain;padding:var(--s-4);}

/* Product card with a studio photo + caption (battery packs, EV, inverter). */
.product-grid{display:grid;gap:var(--s-5);grid-template-columns:repeat(2,1fr);}
@media (min-width:640px){.product-grid{grid-template-columns:repeat(3,1fr);}}
@media (min-width:1024px){.product-grid--4{grid-template-columns:repeat(4,1fr);}}
@media (min-width:1024px){.product-grid--5{grid-template-columns:repeat(5,1fr);}}
.product-card{
  display:flex;flex-direction:column;
  background:var(--df-surface);border:1px solid var(--df-line);border-radius:var(--radius);
  overflow:hidden;transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.product-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);}
.product-card__media{
  aspect-ratio:1;display:flex;align-items:center;justify-content:center;padding:var(--s-5);
  background:radial-gradient(120% 120% at 50% 25%,#fff 0%,var(--df-bg) 72%,var(--df-bg-2) 100%);
  border-bottom:1px solid var(--df-line);
}
.product-card__media img{width:100%;height:100%;object-fit:contain;object-position:center;
  transition:transform var(--dur) var(--ease);}
.product-card:hover .product-card__media img{transform:scale(1.04);}
.product-card__body{padding:var(--s-4) var(--s-5) var(--s-5);}
.product-card__body b{display:block;font-family:var(--font-display);text-transform:uppercase;
  letter-spacing:.02em;color:var(--df-ink);font-size:1.0625rem;line-height:1.15;}
.product-card__body span{display:block;margin-top:var(--s-1);font-size:.875rem;color:var(--df-steel-600);}

/* Two-up image strip (manufacturing accents, etc.). */
.img-duo{display:grid;gap:var(--s-4);grid-template-columns:1fr;margin-bottom:var(--s-6);}
@media (min-width:768px){.img-duo{grid-template-columns:1fr 1fr;}}
.img-duo figure{position:relative;aspect-ratio:16/10;overflow:hidden;
  border-radius:var(--radius);background:var(--df-navy);margin:0;}
.img-duo img{position:absolute;inset:0;width:100%;height:100%;
  object-fit:cover;object-position:center;filter:saturate(.85);
  transition:transform var(--dur) var(--ease);}
.img-duo figure:hover img{transform:scale(1.04);}

/* Logo knockout for navy footer/hero surfaces. */
.logo-knockout{filter:brightness(0) invert(1);}

/* ===================================================== Batteries page ==== */

/* At-a-glance key specs (mini grid) */
.keyspecs{display:grid;gap:var(--s-4);grid-template-columns:repeat(2,1fr);margin-top:var(--s-6);}
@media (min-width:768px){.keyspecs{grid-template-columns:repeat(3,1fr);}}
.keyspec{
  padding:var(--s-4);background:var(--df-surface);border:1px solid var(--df-line);
  border-radius:var(--radius);border-left:3px solid var(--df-blue);
}
.keyspec b{
  display:block;font-size:.6875rem;font-weight:700;text-transform:uppercase;
  letter-spacing:.1em;color:var(--df-steel-600);margin-bottom:var(--s-1);
}
.keyspec span{
  font-family:var(--font-display);font-weight:700;font-size:1.0625rem;
  letter-spacing:.01em;color:var(--df-ink);line-height:1.15;display:block;
}

/* Navy highlight strip (icon + label) */
.highlight-band{position:relative;background:var(--df-navy-900);color:#fff;overflow:hidden;}
.highlight-band::before{
  content:"";position:absolute;inset:0;opacity:.06;
  background:linear-gradient(2deg,transparent 45%,var(--df-blue-bright) 50%,transparent 55%);
}
.highlight-grid{
  position:relative;display:grid;gap:var(--s-6) var(--s-4);
  grid-template-columns:repeat(2,1fr);
}
@media (min-width:640px){.highlight-grid{grid-template-columns:repeat(3,1fr);}}
@media (min-width:1024px){.highlight-grid{grid-template-columns:repeat(5,1fr);}}
.highlight{display:flex;flex-direction:column;align-items:center;text-align:center;gap:var(--s-3);}
.highlight__ic{
  width:58px;height:58px;border-radius:50%;flex:none;
  display:flex;align-items:center;justify-content:center;
  border:1.5px solid var(--df-blue-bright);color:var(--df-blue-bright);background:rgba(46,155,255,.08);
}
.highlight__ic svg{width:28px;height:28px;}
.highlight b{font-family:var(--font-display);text-transform:uppercase;letter-spacing:.03em;
  color:#fff;font-size:1.0625rem;line-height:1.1;}
.highlight span{font-size:.8125rem;color:var(--df-on-dark-mut);}

/* spec-grid 3-up + studio photo header (product / application cards) */
.spec-grid--3{grid-template-columns:1fr;}
@media (min-width:640px){.spec-grid--3{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.spec-grid--3{grid-template-columns:repeat(3,1fr);}}
.spec-card__photo--studio{
  background:radial-gradient(120% 120% at 50% 25%,#fff 0%,var(--df-bg) 72%,var(--df-bg-2) 100%);
}
.spec-card__photo--studio img{object-fit:contain;padding:var(--s-4);filter:none;}

/* Data table (model range) */
.table-wrap{overflow-x:auto;border:1px solid var(--df-line);border-radius:var(--radius-lg);
  -webkit-overflow-scrolling:touch;}
.df-table{width:100%;border-collapse:collapse;min-width:680px;font-size:.9375rem;}
.df-table thead th{
  background:var(--df-navy);color:#fff;font-family:var(--font-display);
  text-transform:uppercase;letter-spacing:.04em;font-weight:600;font-size:.8125rem;
  text-align:left;padding:var(--s-3) var(--s-4);white-space:nowrap;
}
.df-table tbody td{padding:var(--s-3) var(--s-4);border-top:1px solid var(--df-line);color:var(--df-ink-700);}
.df-table tbody tr:nth-child(even){background:var(--df-bg);}
.df-table tbody tr:hover{background:rgba(30,111,232,.06);}
.df-table td:first-child{font-weight:700;color:var(--df-ink);
  font-family:var(--font-display);letter-spacing:.02em;white-space:nowrap;}
.table-note{margin-top:var(--s-4);font-size:.8125rem;color:var(--df-steel-600);}

/* Spec sheet (definition rows) */
.specsheet{border:1px solid var(--df-line);border-radius:var(--radius-lg);
  overflow:hidden;background:var(--df-surface);}
.specsheet__row{
  display:grid;grid-template-columns:1fr;gap:var(--s-1);
  padding:var(--s-3) var(--s-4);border-bottom:1px solid var(--df-line);
}
@media (min-width:480px){
  .specsheet__row{grid-template-columns:minmax(150px,42%) 1fr;gap:var(--s-4);align-items:baseline;}
}
.specsheet__row:last-child{border-bottom:0;}
.specsheet__row:nth-child(even){background:var(--df-bg);}
.specsheet__row dt{margin:0;font-size:.75rem;font-weight:700;text-transform:uppercase;
  letter-spacing:.06em;color:var(--df-steel-600);}
.specsheet__row dd{margin:0;color:var(--df-ink);font-weight:500;}

/* Use-case cards (4-up) */
.usecases{display:grid;gap:var(--s-4);grid-template-columns:repeat(2,1fr);}
@media (min-width:900px){.usecases{grid-template-columns:repeat(4,1fr);}}
.usecase{
  display:flex;flex-direction:column;gap:var(--s-2);padding:var(--s-5);
  background:var(--df-surface);border:1px solid var(--df-line);border-radius:var(--radius);
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.usecase:hover{transform:translateY(-3px);border-color:var(--df-blue);}
.usecase__ic{
  width:48px;height:48px;border-radius:var(--radius);margin-bottom:var(--s-2);
  display:flex;align-items:center;justify-content:center;
  background:var(--df-bg);border:1px solid var(--df-line);color:var(--df-blue);
}
.usecase__ic svg{width:26px;height:26px;}
.usecase b{font-family:var(--font-display);text-transform:uppercase;letter-spacing:.03em;
  color:var(--df-ink);font-size:1.0625rem;line-height:1.15;}
.usecase span{font-size:.875rem;color:var(--df-steel-600);}