/* ============================================================
   Encool — design system
   Brand: ink #0B181F · blue #259AF7 · Plus Jakarta Sans
   Headlines: sentence case
   ============================================================ */
:root{
  --ink:#0B181F;
  --ink-80:#22313A;
  --ink-60:#4A5A64;
  --blue:#259AF7;
  --blue-dark:#0F7FDD;
  --blue-tint:#E9F5FE;
  --paper:#FFFFFF;
  --mist:#F4F7F9;
  --line:#DEE6EB;
  --radius:14px;
  --radius-sm:8px;
  --shadow:0 10px 30px rgba(11,24,31,.10);
  --shadow-sm:0 3px 12px rgba(11,24,31,.08);
  --max:1180px;
  --font:'Plus Jakarta Sans',system-ui,-apple-system,'Segoe UI',Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--font);color:var(--ink);background:var(--paper);
  font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--blue-dark);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{line-height:1.15;font-weight:700;margin:0 0 .5em}
h1{font-size:clamp(2rem,4.5vw,3.4rem);letter-spacing:-.02em}
h2{font-size:clamp(1.5rem,3vw,2.2rem);letter-spacing:-.015em}
h3{font-size:1.25rem}
h4{font-size:1.05rem}
p{margin:0 0 1em}
.container{max-width:var(--max);margin:0 auto;padding:0 24px}
.eyebrow{display:inline-block;font-size:.78rem;font-weight:700;letter-spacing:.14em;
  text-transform:uppercase;color:var(--blue-dark);margin-bottom:12px}
.lead{font-size:1.15rem;color:var(--ink-60);max-width:62ch}
.section{padding:72px 0}
.section--tight{padding:48px 0}
.section--mist{background:var(--mist)}
.section--ink{background:var(--ink);color:#fff}
.section--ink .eyebrow{color:var(--blue)}
.section--ink p{color:#C4D2DA}
.center{text-align:center}
.center .lead{margin-inline:auto}
.skip-link{position:absolute;left:-999px;top:0;background:var(--blue);color:#fff;
  padding:10px 16px;z-index:200;border-radius:0 0 8px 0}
.skip-link:focus{left:0}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:8px;font-family:var(--font);font-weight:700;
  font-size:.95rem;padding:13px 26px;border-radius:999px;border:2px solid transparent;
  cursor:pointer;transition:.18s;text-decoration:none !important;line-height:1.2}
.btn-primary{background:var(--blue);color:#fff}
.btn-primary:hover{background:var(--blue-dark)}
.btn-outline{border-color:var(--ink);color:var(--ink);background:transparent}
.btn-outline:hover{background:var(--ink);color:#fff}
.btn-outline-light{border-color:#fff;color:#fff;background:transparent}
.btn-outline-light:hover{background:#fff;color:var(--ink)}
.btn-sm{padding:9px 18px;font-size:.85rem}

/* Header */
.site-header{position:sticky;top:0;z-index:100;background:#fff;
  border-bottom:1px solid var(--line)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;
  max-width:var(--max);margin:0 auto;padding:14px 24px}
.brand img{width:132px;height:auto}
.nav{display:flex;align-items:center;gap:4px;list-style:none;margin:0;padding:0}
.nav>li{position:relative}
.nav a{display:block;padding:10px 14px;color:var(--ink);font-weight:600;font-size:.95rem;border-radius:8px}
.nav a:hover{background:var(--mist);text-decoration:none}
.nav .dropdown-toggle{background:none;border:0;font:inherit;font-weight:600;color:var(--ink);
  padding:10px 14px;border-radius:8px;cursor:pointer;display:flex;align-items:center;gap:6px}
.nav .dropdown-toggle::after{content:"";width:8px;height:8px;border-right:2px solid currentColor;
  border-bottom:2px solid currentColor;transform:rotate(45deg) translateY(-2px)}
.nav .dropdown-toggle:hover{background:var(--mist)}
.dropdown{position:absolute;top:100%;left:0;min-width:280px;background:#fff;border:1px solid var(--line);
  border-radius:12px;box-shadow:var(--shadow);padding:8px;display:none;z-index:110}
.nav li.open>.dropdown{display:block}
.dropdown a{padding:10px 14px;font-weight:500;border-radius:8px}
.nav-cta{margin-left:8px}
.nav-toggle{display:none;background:none;border:0;cursor:pointer;padding:8px}
.nav-toggle span{display:block;width:24px;height:2px;background:var(--ink);margin:5px 0;transition:.2s}

/* Hero */
.hero{position:relative;background:var(--ink);color:#fff;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background:var(--hero-img) center/cover no-repeat;opacity:.38}
.hero::after{content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(11,24,31,.92) 25%,rgba(11,24,31,.45) 70%,rgba(11,24,31,.65))}
.hero .container{position:relative;z-index:2;padding-top:96px;padding-bottom:96px}
.hero h1{max-width:16ch}
.hero p{font-size:1.2rem;color:#D6E2E9;max-width:56ch;margin-bottom:28px}
.hero-ctas{display:flex;flex-wrap:wrap;gap:14px}
.hero--sub .container{padding-top:72px;padding-bottom:72px}

/* USP strip */
.usp-strip{background:var(--ink);border-top:1px solid rgba(255,255,255,.08)}
.usp-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;padding:28px 0}
.usp{display:flex;gap:12px;align-items:flex-start;color:#D6E2E9;font-size:.92rem;line-height:1.45}
.usp svg{flex:none;width:26px;height:26px;stroke:var(--blue)}

/* Cards */
.grid{display:grid;gap:28px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;display:flex;flex-direction:column;transition:.2s;position:relative}
.card:hover{box-shadow:var(--shadow);transform:translateY(-3px)}
.card-img{aspect-ratio:4/3;object-fit:cover;width:100%;background:var(--mist)}
.card-img--contain{object-fit:contain;padding:18px;background:var(--mist)}
.card-body{padding:22px 24px 26px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3 a{color:var(--ink)}
.card-body p{color:var(--ink-60);font-size:.95rem;flex:1;margin:0}
.card-tag{position:absolute;top:14px;left:14px;background:var(--blue);color:#fff;
  font-size:.72rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;
  padding:5px 12px;border-radius:999px;z-index:2}
.card .btn{align-self:flex-start;margin-top:6px}
.stretch-link::after{content:"";position:absolute;inset:0}

/* Spec list (system comparison + product) */
.spec-list{display:grid;grid-template-columns:1fr 1fr;gap:2px;margin:0;font-size:.9rem}
.spec-list>div{background:var(--mist);padding:10px 14px;border-radius:6px}
.spec-list dt{font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--ink-60)}
.spec-list dd{margin:2px 0 0;font-weight:600}

/* Spec table (product pages) */
.spec-table{width:100%;border-collapse:collapse;font-size:.93rem}
.spec-table caption{text-align:left;font-weight:700;font-size:1.05rem;padding-bottom:12px}
.spec-table th,.spec-table td{text-align:left;padding:11px 14px;border-bottom:1px solid var(--line)}
.spec-table th{font-weight:700;background:var(--mist);white-space:nowrap}
.spec-table tr:nth-child(even) td{background:#FAFCFD}

/* Split feature rows */
.feature-row{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.feature-row img{border-radius:var(--radius);box-shadow:var(--shadow-sm)}
.feature-row--rev>.feature-media{order:2}

/* Breadcrumbs */
.breadcrumbs{font-size:.85rem;color:var(--ink-60);padding:18px 0}
.breadcrumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:6px;margin:0;padding:0}
.breadcrumbs li+li::before{content:"/";margin-right:6px;color:var(--line)}
.breadcrumbs a{color:var(--ink-60)}
.breadcrumbs [aria-current]{color:var(--ink);font-weight:600}

/* FAQ accordion */
.faq-group{max-width:820px;margin:0 auto}
.faq-item{border:1px solid var(--line);border-radius:var(--radius-sm);margin-bottom:12px;background:#fff}
.faq-item summary{cursor:pointer;font-weight:700;padding:18px 22px;list-style:none;
  display:flex;justify-content:space-between;align-items:center;gap:16px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-size:1.4rem;color:var(--blue);flex:none;font-weight:400}
.faq-item[open] summary::after{content:"–"}
.faq-item .faq-a{padding:0 22px 20px;color:var(--ink-60)}

/* Forms */
.form{display:grid;gap:18px;max-width:640px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field label{display:block;font-weight:600;font-size:.9rem;margin-bottom:6px}
.field input,.field select,.field textarea{width:100%;padding:12px 14px;border:1px solid var(--line);
  border-radius:var(--radius-sm);font:inherit;background:#fff;color:var(--ink)}
.field input:focus,.field select:focus,.field textarea:focus{outline:2px solid var(--blue);border-color:var(--blue)}
.checkbox{display:flex;gap:10px;align-items:flex-start;font-size:.9rem;color:var(--ink-60)}
.checkbox input{width:auto;margin-top:3px}

/* Calculator */
.calc-panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:32px;box-shadow:var(--shadow-sm);max-width:720px;margin:0 auto}
.calc-result{margin-top:24px;padding:24px;border-radius:var(--radius-sm);background:var(--blue-tint);display:none}
.calc-result.show{display:block}
.calc-result strong{font-size:1.2rem}

/* Testimonials */
.quote-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:30px;display:flex;flex-direction:column;gap:14px}
.stars{color:var(--blue);letter-spacing:3px;font-size:1.05rem}
.quote-card blockquote{margin:0;font-size:1rem;color:var(--ink-80);flex:1}
.quote-card cite{font-style:normal;font-weight:700}

/* Gallery */
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.gallery img{border-radius:var(--radius-sm);aspect-ratio:1;object-fit:cover;background:var(--mist)}

/* Prose (blog / long copy) */
.prose{max-width:760px;margin:0 auto}
.prose h2{margin-top:1.6em}
.prose h3{margin-top:1.3em}
.prose ul,.prose ol{padding-left:1.3em;color:var(--ink-80)}
.prose li{margin-bottom:.4em}
.prose img{border-radius:var(--radius);margin:1.5em 0}
.meta-line{font-size:.85rem;color:var(--ink-60);margin-bottom:2em}

/* Download list */
.dl-list{list-style:none;padding:0;margin:0;display:grid;gap:12px;max-width:760px}
.dl-list a{display:flex;justify-content:space-between;align-items:center;gap:16px;background:#fff;
  border:1px solid var(--line);border-radius:var(--radius-sm);padding:16px 20px;font-weight:600;color:var(--ink)}
.dl-list a:hover{border-color:var(--blue);text-decoration:none;box-shadow:var(--shadow-sm)}
.dl-list .tag{font-size:.72rem;font-weight:700;color:var(--blue-dark);background:var(--blue-tint);
  padding:4px 10px;border-radius:999px;flex:none}

/* CTA band */
.cta-band{background:linear-gradient(115deg,var(--ink) 40%,#12303F);color:#fff;
  border-radius:var(--radius);padding:56px;display:flex;flex-wrap:wrap;gap:24px;
  align-items:center;justify-content:space-between}
.cta-band h2{margin:0}
.cta-band p{color:#C4D2DA;margin:8px 0 0;max-width:52ch}

/* Video */
.video-embed{position:relative;padding-top:56.25%;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.video-embed iframe{position:absolute;inset:0;width:100%;height:100%;border:0}

/* Footer */
.site-footer{background:var(--ink);color:#B9C7CF;margin-top:72px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:40px;padding:64px 0 48px}
.site-footer h4{color:#fff;font-size:.85rem;text-transform:uppercase;letter-spacing:.1em;margin-bottom:16px}
.site-footer ul{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.site-footer a{color:#B9C7CF;font-size:.93rem}
.site-footer a:hover{color:#fff}
.footer-brand img{width:140px;filter:brightness(0) invert(1)}
.footer-brand p{font-size:.9rem;margin-top:16px;max-width:34ch}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:20px 0;font-size:.83rem;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between}
address{font-style:normal;font-size:.93rem;line-height:1.7}

/* Utility */
.mt-0{margin-top:0}.mb-0{margin-bottom:0}
.badge-row{display:flex;flex-wrap:wrap;gap:10px;margin:14px 0}
.badge{background:var(--blue-tint);color:var(--blue-dark);font-size:.78rem;font-weight:700;
  padding:6px 14px;border-radius:999px}

/* Responsive */
@media (max-width:960px){
  .grid-4,.grid-3{grid-template-columns:repeat(2,1fr)}
  .usp-grid{grid-template-columns:repeat(2,1fr)}
  .feature-row{grid-template-columns:1fr;gap:28px}
  .feature-row--rev>.feature-media{order:0}
  .footer-grid{grid-template-columns:1fr 1fr}
  .nav-toggle{display:block}
  .nav-menu{position:fixed;top:67px;left:0;right:0;bottom:0;background:#fff;padding:20px 24px;overflow:auto;display:none;z-index:98}
  .nav-menu.open{display:block}
  .nav{flex-direction:column;align-items:stretch;gap:2px}
  .dropdown{position:static;box-shadow:none;border:0;padding-left:16px;min-width:0}
  .nav-cta{margin:12px 0 0}
}
@media (max-width:600px){
  .grid-2,.grid-3,.grid-4,.usp-grid,.form-row{grid-template-columns:1fr}
  .section{padding:52px 0}
  .hero .container{padding-top:64px;padding-bottom:64px}
  .cta-band{padding:36px 28px}
  .gallery{grid-template-columns:repeat(2,1fr)}
  .spec-list{grid-template-columns:1fr}
}