/* ============================================================
   CCWATT — B2B Energy Systems
   Design tokens: graphite base, charge-lime signal, copper(solar)
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@500;600;700&family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

:root{
  --bg:        #0B0E11;
  --bg-soft:   #11151A;
  --panel:     #161B21;
  --panel-2:   #1C2229;
  --line:      #2A323B;
  --text:      #E8ECEF;
  --text-dim:  #9BA3AC;
  --text-faint:#5C6470;

  --charge:    #D4FF3D;   /* signature: charge-lime */
  --charge-dim:#9CC22C;
  --solar:     #FF7A33;   /* copper / solar accent */
  --solar-dim: #C75A22;

  --radius:    2px;
  --radius-lg: 4px;

  --font-display: 'Space Grotesk', sans-serif;
  --font-body:    'Inter', sans-serif;
  --font-mono:    'JetBrains Mono', monospace;

  --maxw: 1240px;
  --gutter: 32px;
}

*{ box-sizing:border-box; margin:0; padding:0; }
html{ scroll-behavior:smooth; }
body{
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
ul{ list-style:none; }
button{ font-family:inherit; cursor:pointer; }

.wrap{
  max-width:var(--maxw);
  margin:0 auto;
  padding:0 var(--gutter);
}

h1,h2,h3,h4{
  font-family:var(--font-display);
  font-weight:600;
  letter-spacing:-0.01em;
  line-height:1.15;
  color:#fff;
}
h1{ font-size:clamp(2.4rem,5vw,4.4rem); font-weight:700; }
h2{ font-size:clamp(1.8rem,3.2vw,2.6rem); }
h3{ font-size:1.3rem; }

.eyebrow{
  font-family:var(--font-mono);
  font-size:0.74rem;
  letter-spacing:0.18em;
  text-transform:uppercase;
  color:var(--charge);
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:16px;
}
.eyebrow::before{
  content:'';
  width:18px; height:2px;
  background:var(--charge);
  display:inline-block;
}

.lede{
  color:var(--text-dim);
  font-size:1.08rem;
  max-width:560px;
}

/* focus visibility */
a:focus-visible, button:focus-visible, .dropdown:focus-visible{
  outline:2px solid var(--charge);
  outline-offset:3px;
}

@media (prefers-reduced-motion: reduce){
  *{ animation-duration:0.001ms !important; transition-duration:0.001ms !important; }
}

/* ---------------- Charge-gauge motif (signature) ---------------- */
.gauge{
  display:flex;
  gap:4px;
  height:6px;
}
.gauge i{
  flex:1;
  background:var(--line);
  border-radius:1px;
}
.gauge.is-on i{ background:var(--charge); }
.gauge[data-level="3"] i:nth-child(-n+3),
.gauge[data-level="5"] i:nth-child(-n+5),
.gauge[data-level="6"] i:nth-child(-n+6),
.gauge[data-level="8"] i:nth-child(-n+8){ background:var(--charge); }

.divider{
  display:flex;
  gap:4px;
  height:3px;
  margin:0;
}
.divider i{ flex:1; background:var(--line); }
.divider i:nth-child(4n+1){ background:var(--charge-dim); }

/* ============================== HEADER ============================== */
.site-header{
  position:fixed; top:0; left:0; right:0;
  z-index:1000;
  background:rgba(11,14,17,0.86);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.nav{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:72px;
  max-width:var(--maxw);
  margin:0 auto;
  padding:0 var(--gutter);
  position:relative;
}
.brand{
  font-family:var(--font-display);
  font-weight:700;
  font-size:1.25rem;
  letter-spacing:0.01em;
  display:flex;
  align-items:center;
  gap:8px;
}
.brand .mark{
  width:10px;height:18px;
  background:var(--charge);
  border-radius:1px;
  position:relative;
  box-shadow:0 0 14px rgba(212,255,61,0.55);
}
.nav-list{
  display:flex;
  align-items:center;
  gap:6px;
  font-size:0.92rem;
  font-weight:500;
}
.nav-list > li{ position:relative; }
.nav-list > li > a, .nav-list > li > button.nav-link{
  display:flex; align-items:center; gap:6px;
  padding:10px 16px;
  color:var(--text-dim);
  background:none; border:none;
  font-size:0.92rem; font-weight:500; font-family:inherit;
  transition:color .15s ease;
}
.nav-list > li > a:hover,
.nav-list > li > button.nav-link:hover,
.nav-list > li.is-open > button.nav-link{ color:var(--text); }
.nav-list > li.current > a{ color:var(--charge); }
.caret{ width:8px; height:8px; flex:none; transition:transform .2s ease; }
.nav-list > li.is-open .caret{ transform:rotate(180deg); }

.dropdown{
  position:absolute;
  top:calc(100% + 10px);
  left:0;
  min-width:300px;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:10px;
  opacity:0; visibility:hidden;
  transform:translateY(-6px);
  transition:opacity .16s ease, transform .16s ease, visibility .16s;
  box-shadow:0 18px 40px rgba(0,0,0,0.45);
}
.nav-list > li.is-open .dropdown{
  opacity:1; visibility:visible; transform:translateY(0);
}
.dropdown a{
  display:flex;
  flex-direction:column;
  gap:3px;
  padding:11px 14px;
  border-radius:var(--radius);
  color:var(--text);
}
.dropdown a:hover{ background:var(--panel-2); }
.dropdown a span.label{ font-weight:600; font-size:0.92rem; }
.dropdown a span.sub{ font-size:0.78rem; color:var(--text-faint); font-family:var(--font-mono); }

.nav-right{
  display:flex;
  align-items:center;
  gap:18px;
}
#translate{ min-width:1px; }

.btn{
  font-family:var(--font-mono);
  font-size:0.8rem;
  letter-spacing:0.04em;
  padding:11px 20px;
  border-radius:var(--radius);
  border:1px solid var(--line);
  display:inline-flex;
  align-items:center;
  gap:8px;
  transition:border-color .15s ease, background .15s ease, color .15s ease;
}
.btn-primary{
  background:var(--charge);
  color:#0B0E11;
  border-color:var(--charge);
  font-weight:600;
}
.btn-primary:hover{ background:#c2eb2c; }
.btn-ghost{ color:var(--text); }
.btn-ghost:hover{ border-color:var(--text-dim); }

.nav-toggle{
  display:none;
  flex-direction:column;
  gap:5px;
  background:none; border:none;
  padding:8px;
}
.nav-toggle span{ width:22px; height:2px; background:var(--text); display:block; }

/* ============================== MOBILE NAV ============================== */
@media (max-width:920px){
  .nav-list{
    position:fixed; inset:72px 0 0 0;
    background:var(--bg);
    flex-direction:column;
    align-items:stretch;
    padding:18px;
    gap:0;
    overflow-y:auto;
    display:none;
    border-top:1px solid var(--line);
  }
  .nav-list.is-open{ display:flex; }
  .nav-list > li{ border-bottom:1px solid var(--line); }
  .nav-list > li > a, .nav-list > li > button.nav-link{ width:100%; justify-content:space-between; padding:16px 6px; font-size:1rem; }
  .dropdown{ position:static; width:100%; min-width:0; box-shadow:none; display:none; opacity:1; visibility:visible; transform:none; border:none; padding:0 0 10px 0; }
  .nav-list > li.is-open .dropdown{ display:flex; flex-direction:column; }
  .nav-right .btn-ghost{ display:none; }
  .nav-toggle{ display:flex; }
}

/* ============================== HERO ============================== */
.hero{
  padding:188px 0 120px;
  position:relative;
  overflow:hidden;
  background:
    radial-gradient(620px 420px at 82% -10%, rgba(212,255,61,0.10), transparent 70%),
    radial-gradient(500px 360px at 10% 110%, rgba(255,122,51,0.08), transparent 70%);
}
.hero-grid{
  display:grid;
  grid-template-columns:minmax(0,1.1fr) minmax(0,0.9fr);
  gap:60px;
  align-items:center;
}
.hero h1{ margin-bottom:24px; }
.hero h1 em{ color:var(--charge); font-style:normal; }
.hero-actions{ display:flex; gap:14px; margin-top:36px; flex-wrap:wrap; }
.hero-stats{ display:flex; gap:36px; margin-top:56px; }
.hero-stats .stat-num{ font-family:var(--font-mono); font-size:1.6rem; color:#fff; }
.hero-stats .stat-label{ font-size:0.78rem; color:var(--text-faint); margin-top:4px; }

.hero-visual{
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  background:var(--panel);
  aspect-ratio:4/3.4;
  display:flex; align-items:center; justify-content:center;
  position:relative;
  overflow:hidden;
}
.placeholder{
  width:100%; height:100%;
  display:flex; flex-direction:column; align-items:center; justify-content:center;
  gap:10px;
  color:var(--text-faint);
  font-family:var(--font-mono);
  font-size:0.78rem;
  letter-spacing:0.05em;
  background:
    linear-gradient(135deg, rgba(255,255,255,0.025) 25%, transparent 25%, transparent 50%, rgba(255,255,255,0.025) 50%, rgba(255,255,255,0.025) 75%, transparent 75%, transparent);
  background-size:18px 18px;
  text-align:center;
  padding:20px;
}
.placeholder svg{ width:34px; height:34px; opacity:0.5; }

@media (max-width:920px){
  .hero{ padding:148px 0 80px; }
  .hero-grid{ grid-template-columns:1fr; }
  .hero-stats{ flex-wrap:wrap; gap:28px; }
}

/* ============================== SECTIONS ============================== */
section{ padding:100px 0; }
.section-head{ max-width:680px; margin-bottom:56px; }
.section-head.center{ margin-left:auto; margin-right:auto; text-align:center; }

.bg-soft{ background:var(--bg-soft); }
.bg-panel{ background:var(--panel); border-top:1px solid var(--line); border-bottom:1px solid var(--line); }

/* product grid / cards */
.grid{ display:grid; gap:24px; }
.grid-3{ grid-template-columns:repeat(3,minmax(0,1fr)); }
.grid-2{ grid-template-columns:repeat(2,minmax(0,1fr)); }
.grid-4{ grid-template-columns:repeat(4,minmax(0,1fr)); }
@media (max-width:920px){
  .grid-3, .grid-4{ grid-template-columns:repeat(2,minmax(0,1fr)); }
}
@media (max-width:640px){
  .grid-3, .grid-4, .grid-2{ grid-template-columns:minmax(0,1fr); }
}

.card{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:30px;
  display:flex; flex-direction:column; gap:14px;
  transition:border-color .2s ease, transform .2s ease;
}
.card:hover{ border-color:var(--charge-dim); transform:translateY(-3px); }
.card .tag{
  font-family:var(--font-mono); font-size:0.7rem; letter-spacing:0.1em;
  color:var(--solar); text-transform:uppercase;
}
.card p{ color:var(--text-dim); font-size:0.93rem; }
/* prevent grid/flex children from blowing out their track on long content */
.grid > *{ min-width:0; }
.hero-grid > *, .product-detail > *, .contact-grid > *, .footer-grid > *{ min-width:0; }

.card .spec-row{
  display:flex; justify-content:space-between;
  font-family:var(--font-mono); font-size:0.78rem; color:var(--text-faint);
  border-top:1px solid var(--line); padding-top:14px; margin-top:auto;
  gap:8px; flex-wrap:wrap;
}
.card .spec-row b{ color:var(--text); font-weight:500; }

.product-thumb{
  border:1px solid var(--line);
  border-radius:var(--radius);
  aspect-ratio:16/10;
  margin-bottom:4px;
}

/* product detail block */
.product-detail{
  display:grid;
  grid-template-columns:minmax(0,0.9fr) minmax(0,1.1fr);
  gap:56px;
  align-items:start;
  padding:64px 0;
  border-top:1px solid var(--line);
}
.product-detail:first-of-type{ border-top:none; }
.product-detail.reverse{ direction:rtl; }
.product-detail.reverse > *{ direction:ltr; }
@media (max-width:920px){
  .product-detail, .product-detail.reverse{ grid-template-columns:1fr; direction:ltr; }
}
.spec-list{ display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:14px 28px; margin-top:28px; }
.spec-list .spec{ border-top:1px solid var(--line); padding-top:10px; }
.spec-list .spec .k{ font-family:var(--font-mono); font-size:0.7rem; color:var(--text-faint); letter-spacing:0.06em; text-transform:uppercase; }
.spec-list .spec .v{ font-family:var(--font-mono); font-size:1.05rem; color:var(--text); margin-top:4px; }

/* solutions */
.solution-row{
  display:grid;
  grid-template-columns:64px 1fr 1fr;
  gap:30px;
  align-items:flex-start;
  padding:38px 0;
  border-top:1px solid var(--line);
}
.solution-row .num{ font-family:var(--font-mono); color:var(--charge-dim); font-size:0.9rem; }
@media (max-width:780px){ .solution-row{ grid-template-columns:1fr; gap:14px; } }

/* logo strip */
.logo-strip{ display:flex; flex-wrap:wrap; gap:18px; }
.logo-pill{
  flex:1; min-width:140px;
  border:1px dashed var(--line);
  border-radius:var(--radius);
  padding:22px;
  text-align:center;
  font-family:var(--font-mono);
  font-size:0.78rem;
  color:var(--text-faint);
}

/* case studies */
.case-card{
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  overflow:hidden;
  background:var(--panel);
}
.case-card .placeholder{ aspect-ratio:16/9; }
.case-body{ padding:26px; }
.case-meta{ display:flex; gap:14px; font-family:var(--font-mono); font-size:0.72rem; color:var(--text-faint); margin-top:14px; }

.quote{
  border-left:2px solid var(--charge);
  padding-left:24px;
  font-family:var(--font-display);
  font-size:1.3rem;
  font-weight:500;
  color:#fff;
  max-width:760px;
}
.quote .who{ font-family:var(--font-mono); font-size:0.78rem; color:var(--text-faint); margin-top:18px; }

/* FAQ */
.faq-item{
  border-bottom:1px solid var(--line);
}
.faq-q{
  width:100%;
  display:flex; justify-content:space-between; align-items:center;
  padding:24px 0;
  background:none; border:none; text-align:left;
  font-family:var(--font-display); font-size:1.05rem; color:var(--text);
}
.faq-q .plus{
  font-family:var(--font-mono); color:var(--charge); flex:none; margin-left:20px;
  transition:transform .2s ease;
}
.faq-item.is-open .plus{ transform:rotate(45deg); }
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .25s ease;
  color:var(--text-dim);
  font-size:0.95rem;
}
.faq-a-inner{ padding:0 0 26px 0; max-width:760px; }
.faq-cat{ font-family:var(--font-mono); font-size:0.74rem; letter-spacing:0.1em; color:var(--solar); text-transform:uppercase; margin:48px 0 4px; }
.faq-cat:first-child{ margin-top:0; }

/* contact */
.contact-grid{ display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:60px; }
@media (max-width:880px){ .contact-grid{ grid-template-columns:1fr; } }
.field{ margin-bottom:20px; }
.field label{ display:block; font-family:var(--font-mono); font-size:0.74rem; letter-spacing:0.06em; text-transform:uppercase; color:var(--text-faint); margin-bottom:8px; }
.field input, .field select, .field textarea{
  width:100%;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:13px 14px;
  color:var(--text);
  font-family:var(--font-body);
  font-size:0.95rem;
}
.field input:focus, .field select:focus, .field textarea:focus{ outline:none; border-color:var(--charge-dim); }
.contact-info-item{ display:flex; gap:16px; padding:20px 0; border-top:1px solid var(--line); }
.contact-info-item .k{ font-family:var(--font-mono); font-size:0.72rem; color:var(--text-faint); width:90px; flex:none; text-transform:uppercase; letter-spacing:0.06em; padding-top:3px;}

/* about */
.timeline-row{ display:grid; grid-template-columns:120px 1fr; gap:24px; padding:26px 0; border-top:1px solid var(--line); }
.timeline-row .yr{ font-family:var(--font-mono); color:var(--charge); font-size:1.1rem; }
.value-card{ padding:0; border:none; background:none; }
.value-card .idx{ font-family:var(--font-mono); color:var(--text-faint); font-size:0.78rem; }

/* CTA band */
.cta-band{
  border-top:1px solid var(--line);
  background:var(--panel);
  padding:80px 0;
  text-align:center;
}
.cta-band h2{ margin-bottom:18px; }
.cta-band .hero-actions{ justify-content:center; margin-top:32px; }

/* breadcrumb / page hero (sub pages) */
.page-hero{
  padding:172px 0 70px;
}
.page-hero .eyebrow{ margin-bottom:18px; }
.page-hero .lede{ max-width:640px; }

/* ============================== FOOTER ============================== */
.site-footer{
  border-top:1px solid var(--line);
  padding:70px 0 30px;
  background:var(--bg-soft);
}
.footer-grid{
  display:grid;
  grid-template-columns:minmax(0,1.4fr) minmax(0,1fr) minmax(0,1fr) minmax(0,1fr);
  gap:40px;
  padding-bottom:50px;
}
.footer-grid h4{ font-size:0.78rem; letter-spacing:0.08em; text-transform:uppercase; color:var(--text-faint); margin-bottom:18px; font-family:var(--font-mono); }
.footer-grid ul{ display:flex; flex-direction:column; gap:11px; }
.footer-grid a{ color:var(--text-dim); font-size:0.92rem; }
.footer-grid a:hover{ color:var(--charge); }
.footer-brand p{ color:var(--text-dim); margin-top:14px; max-width:280px; font-size:0.92rem; }
.footer-bottom{
  display:flex; justify-content:space-between; align-items:center;
  border-top:1px solid var(--line);
  padding-top:24px;
  font-family:var(--font-mono);
  font-size:0.74rem;
  color:var(--text-faint);
  flex-wrap:wrap;
  gap:12px;
}
@media (max-width:880px){
  .footer-grid{ grid-template-columns:repeat(2,minmax(0,1fr)); }
}
@media (max-width:540px){
  .footer-grid{ grid-template-columns:1fr; }
}

/* reveal on scroll */
.reveal{ opacity:0; transform:translateY(18px); transition:opacity .6s ease, transform .6s ease; }
.reveal.is-visible{ opacity:1; transform:translateY(0); }

/* breadcrumb pills used across product/solution category nav */
.pill-row{ display:flex; gap:10px; flex-wrap:wrap; margin-bottom:48px; }
.pill{
  font-family:var(--font-mono); font-size:0.78rem;
  padding:9px 16px; border:1px solid var(--line); border-radius:20px;
  color:var(--text-dim);
}
.pill.active{ border-color:var(--charge); color:var(--charge); }