/* ---------- tokens ---------- */
:root{
  --bg: #14181d;
  --panel: #1c222a;
  --panel-2: #232b34;
  --copper: #c1793d;
  --copper-2: #e2a868;
  --volt: #f4c94a;
  --ink: #eee9e1;
  --muted: #98a2ad;
  --line: #333d48;
  --danger: #d1553f;
  --radius-sm: 3px;
  --font-display: "Space Grotesk", "Noto Sans Devanagari", sans-serif;
  --font-body: "Inter", "Noto Sans Devanagari", sans-serif;
}

*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin:0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
body.lang-mr{ font-family: "Noto Sans Devanagari", var(--font-body); }
body.lang-mr h1, body.lang-mr h2, body.lang-mr h3{ font-family: "Noto Sans Devanagari", var(--font-display); }

img,svg{ display:block; max-width:100%; }
a{ color: inherit; text-decoration:none; }
h1,h2,h3{ font-family: var(--font-display); margin: 0 0 .5em; font-weight: 600; letter-spacing: -0.01em; }
h1{ font-size: clamp(2.2rem, 4.5vw, 3.6rem); line-height: 1.08; }
h2{ font-size: clamp(1.6rem, 3vw, 2.3rem); margin-bottom: 1.4rem; }
h3{ font-size: 1.15rem; }
p{ margin: 0 0 1em; color: var(--muted); }
.wrap{ max-width: 1160px; margin: 0 auto; padding: 0 28px; }

:focus-visible{ outline: 2px solid var(--volt); outline-offset: 3px; }

@media (prefers-reduced-motion: reduce){
  *{ animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
}

/* ---------- spine (ambient current) ---------- */
.spine{
  position: fixed; top:0; left: 22px; height: 100vh; width: 2px;
  z-index: 0; opacity: .35; display:none;
}
@media (min-width: 1300px){ .spine{ display:block; } }
.spine svg{ width:2px; height:100%; }
.spine path{ stroke: var(--line); stroke-width: 2; fill:none; }
.spine-dot{
  position:absolute; left:-3px; top:0; width:8px; height:8px; border-radius:50%;
  background: var(--volt); box-shadow: 0 0 10px 2px var(--volt);
  animation: travel 7s linear infinite;
}
@keyframes travel{
  0%{ top: 0%; opacity: 0; }
  5%{ opacity: 1; }
  95%{ opacity: 1; }
  100%{ top: 100%; opacity: 0; }
}

/* ---------- header ---------- */
.site-header{
  position: sticky; top:0; z-index: 50;
  background: rgba(20,24,29,.86);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.header-row{ display:flex; align-items:center; justify-content:space-between; height:74px; gap: 24px; }
.brand{ display:flex; align-items:center; gap:10px; flex-shrink:0; }
.brand-mark{ color: var(--copper); display:flex; }
.brand-text{ display:flex; flex-direction:column; line-height:1.1; font-family: var(--font-display); font-weight:600; }
.brand-sub{ color: var(--copper-2); font-size: .78em; font-weight:500; letter-spacing:.02em; }

.main-nav{ display:flex; gap: 28px; flex:1; justify-content:center; }
.main-nav a{ color: var(--muted); font-size: .95rem; padding: 6px 2px; border-bottom: 2px solid transparent; transition: color .18s ease, border-color .18s ease; }
.main-nav a:hover{ color: var(--ink); border-color: var(--copper); }

.header-actions{ display:flex; align-items:center; gap: 14px; }

.lang-switch{
  position: relative; display:flex; align-items:center; width: 86px; height: 34px;
  background: var(--panel-2); border: 1px solid var(--line); border-radius: 999px;
  cursor:pointer; padding: 3px; font-family: var(--font-display); font-size: .72rem; font-weight:600;
  color: var(--muted);
}
.lang-opt{ flex:1; text-align:center; z-index:1; pointer-events:none; transition: color .2s ease; }
.lang-knob{
  position:absolute; top:3px; left:3px; width: 38px; height: 26px; border-radius: 999px;
  background: linear-gradient(180deg, var(--copper-2), var(--copper));
  box-shadow: 0 1px 3px rgba(0,0,0,.4);
  transition: transform .28s cubic-bezier(.5,1.6,.4,1);
}
.lang-switch[aria-checked="true"] .lang-knob{ transform: translateX(44px); }
.lang-switch[aria-checked="true"] .lang-opt.lang-mr{ color: var(--bg); font-weight:700; }
.lang-switch[aria-checked="false"] .lang-opt.lang-en{ color: var(--bg); font-weight:700; }
.lang-switch[aria-checked="true"] .lang-opt.lang-en,
.lang-switch[aria-checked="false"] .lang-opt.lang-mr{ color: var(--muted); }

.burger{ display:none; flex-direction:column; justify-content:center; gap:4px; width:34px; height:34px; background:none; border:none; cursor:pointer; }
.burger span{ display:block; height:2px; width:100%; background: var(--ink); border-radius:2px; }

/* ---------- buttons ---------- */
.btn{ display:inline-flex; align-items:center; justify-content:center; padding: 13px 26px; border-radius: var(--radius-sm); font-weight: 600; font-size: .95rem; font-family: var(--font-display); border:1px solid transparent; cursor:pointer; transition: transform .15s ease, box-shadow .15s ease, background .15s ease; }
.btn-primary{ background: var(--copper); color: #14181d; }
.btn-primary:hover{ background: var(--copper-2); box-shadow: 0 0 0 3px rgba(193,121,61,.25); }
.btn-ghost{ border-color: var(--line); color: var(--ink); }
.btn-ghost:hover{ border-color: var(--copper); color: var(--copper-2); }

/* ---------- hero ---------- */
.hero{
  display:grid; grid-template-columns: 1.15fr 0.85fr; gap: 56px; align-items:center;
  padding: 84px 28px 70px;
}
.eyebrow{ color: var(--copper-2); font-size: .9rem; margin-bottom: .9rem; font-weight:500; }
.hero-sub{ max-width: 46ch; font-size: 1.05rem; }
.hero-actions{ display:flex; gap: 14px; margin-top: 1.6rem; flex-wrap:wrap; }

.hero-panel{ display:flex; justify-content:center; }
.panel-frame{
  width: 100%; max-width: 340px; background: var(--panel);
  border: 1px solid var(--line); border-radius: 10px; padding: 20px;
  box-shadow: 0 20px 50px -20px rgba(0,0,0,.6);
}
.panel-header{ display:flex; gap:6px; margin-bottom: 16px; }
.panel-dot{ width:7px; height:7px; border-radius:50%; background: var(--line); }
.switch-grid{ display:grid; grid-template-columns: repeat(3,1fr); gap: 12px; margin-bottom: 16px; }
.rocker{
  aspect-ratio: 1; background: var(--panel-2); border: 1px solid var(--line); border-radius: 6px;
  position: relative;
}
.rocker::after{
  content:""; position:absolute; left:50%; top: 62%; transform: translate(-50%,-50%); width: 46%; height: 26%;
  background: #2c333c; border-radius: 3px; border: 1px solid #3a434f;
}
.rocker.on::after{ top: 38%; background: var(--copper); border-color: var(--copper-2); }
.rocker.on{ box-shadow: inset 0 0 12px rgba(244,201,74,.12); }
.rocker.on::before{
  content:""; position:absolute; inset: 4px; border-radius:4px; background: radial-gradient(circle at 50% 30%, rgba(244,201,74,.18), transparent 70%);
}
.rocker.auto-flip{ animation: flip 4.5s ease-in-out infinite; }
@keyframes flip{
  0%, 38%{ }
  40%{ }
  42%{ }
  0%,100%{ }
}
.rocker.auto-flip::after{ animation: flipknob 4.5s ease-in-out infinite; }
@keyframes flipknob{
  0%, 45%{ top: 38%; background: var(--copper); border-color: var(--copper-2); }
  50%, 95%{ top: 62%; background:#2c333c; border-color:#3a434f; }
  100%{ top: 38%; background: var(--copper); border-color: var(--copper-2); }
}
.panel-footer{ font-size: .78rem; color: var(--muted); text-align:center; border-top: 1px dashed var(--line); padding-top: 12px; }

/* ---------- ticker ---------- */
.ticker{ border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--panel); overflow:hidden; }
.ticker-track{
  display:flex; gap: 14px; white-space:nowrap; padding: 13px 0; width: max-content;
  font-family: var(--font-display); font-size: .82rem; color: var(--copper-2); letter-spacing: .01em;
  animation: scroll-left 32s linear infinite;
}
.ticker-track .sep{ color: var(--line); }
@keyframes scroll-left{
  from{ transform: translateX(0); }
  to{ transform: translateX(-50%); }
}

/* ---------- sections ---------- */
.section{ padding: 88px 0; }
.section.alt{ background: var(--panel); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }

/* about */
.about-grid{ display:grid; grid-template-columns: 1.3fr 1fr; gap: 56px; align-items:start; }
.about-text p{ max-width: 56ch; font-size: 1.02rem; }
.about-stats{ display:grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.stat{ border-left: 2px solid var(--copper); padding-left: 14px; }
.stat-num{ display:block; font-family: var(--font-display); font-size: 2rem; font-weight:700; color: var(--ink); }
.stat-label{ font-size: .85rem; color: var(--muted); }

/* module grid (products) */
.module-grid{ display:grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.module{
  position:relative; background: var(--bg); border: 1px solid var(--line);
  padding: 26px 22px 24px; clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 0 100%);
}
.module::before, .module::after{
  content:""; position:absolute; width:5px; height:5px; border-radius:50%; background: var(--line); top:10px;
}
.module::before{ left:10px; }
.module::after{ right:10px; }
.module-code{ position:absolute; top:10px; right:22px; font-family: var(--font-display); font-size: .72rem; color: var(--muted); }
.module-icon{ width: 40px; height:40px; color: var(--copper-2); margin: 6px 0 16px; }
.module h3{ margin-bottom:.4em; }
.module p{ font-size: .92rem; margin-bottom:0; }

/* services / circuit path */
.circuit-path{ position:relative; display:grid; grid-template-columns: repeat(4,1fr); gap: 30px; }
.circuit-path::before{
  content:""; position:absolute; top:7px; left: calc(12.5% ); right: calc(12.5%); height:2px;
  background: repeating-linear-gradient(to right, var(--copper) 0 8px, transparent 8px 14px);
}
.cp-node{ position:relative; padding-top: 30px; }
.cp-marker{ position:absolute; top:0; left:0; width:16px; height:16px; border-radius:50%; background: var(--panel); border: 2px solid var(--copper); }
.cp-marker::after{ content:""; position:absolute; inset:3px; border-radius:50%; background: var(--copper); }
.cp-node p{ font-size: .92rem; }

/* breaker panel (why choose us) */
.breaker-row{ display:grid; grid-template-columns: repeat(4,1fr); gap: 18px; }
.breaker{ background: var(--bg); border: 1px solid var(--line); border-radius: 6px; padding: 18px 18px 20px; }
.breaker-top{ display:flex; align-items:center; justify-content:space-between; margin-bottom: 14px; }
.breaker-id{ font-family: var(--font-display); font-size: .72rem; color: var(--muted); letter-spacing: .03em; }
.breaker-lever{ width: 16px; height: 24px; border-radius: 3px; background: var(--panel-2); border: 1px solid var(--line); position:relative; }
.breaker-lever::after{ content:""; position:absolute; left:2px; right:2px; top:2px; height: 10px; border-radius:2px; background: #3a434f; }
.breaker-lever.on::after{ top: auto; bottom:2px; background: var(--copper); }
.breaker h3{ font-size: 1.02rem; }
.breaker p{ font-size: .9rem; margin-bottom:0; }

/* reviews */
.reviews-grid{ display:grid; grid-template-columns: repeat(3,1fr); gap: 22px; }
.review{ margin:0; padding: 24px; background: var(--panel-2); border-left: 3px solid var(--copper); border-radius: 0 6px 6px 0; }
.review p{ color: var(--ink); font-size: .98rem; margin-bottom: 12px; }
.review cite{ font-style:normal; font-size: .84rem; color: var(--copper-2); font-family: var(--font-display); }

/* contact */
.contact-grid{ display:grid; grid-template-columns: 1fr 1fr; gap: 60px; }
.contact-list{ list-style:none; margin: 1.4rem 0 0; padding:0; display:flex; flex-direction:column; gap: 16px; }
.contact-list li{ display:flex; flex-direction:column; gap:2px; border-bottom: 1px dashed var(--line); padding-bottom: 14px; font-size: .96rem; }
.ci-label{ font-family: var(--font-display); font-size: .78rem; color: var(--copper-2); text-transform: none; }

.contact-form{ display:flex; flex-direction:column; gap: 6px; }
.contact-form label{ font-size: .85rem; color: var(--muted); margin-top: 10px; }
.contact-form input, .contact-form textarea{
  background: var(--bg); border: 1px solid var(--line); color: var(--ink);
  padding: 12px 14px; border-radius: var(--radius-sm); font-family: var(--font-body); font-size: .96rem; resize: vertical;
}
.contact-form input:focus, .contact-form textarea:focus{ border-color: var(--copper); }
.contact-form .btn{ margin-top: 18px; align-self:flex-start; }

/* footer */
.site-footer{ border-top: 1px solid var(--line); padding: 34px 0; }
.footer-row{ display:flex; flex-wrap:wrap; align-items:center; justify-content:space-between; gap: 12px; }
.footer-brand{ font-family: var(--font-display); font-weight:600; color: var(--copper-2); }
.footer-note, .footer-copy{ color: var(--muted); font-size: .85rem; margin:0; }

/* ---------- whatsapp float ---------- */
.wa-float{
  position: fixed; right: 22px; bottom: 22px; z-index: 60;
  width: 56px; height: 56px; border-radius: 50%;
  background: #25D366; color: #0b3d1f;
  display:flex; align-items:center; justify-content:center;
  box-shadow: 0 10px 24px -8px rgba(0,0,0,.6);
  transition: transform .18s ease;
}
.wa-float:hover{ transform: translateY(-2px) scale(1.04); }
.wa-ring{
  position:absolute; inset:0; border-radius:50%; border: 2px solid #25D366;
  animation: wa-pulse 2.4s ease-out infinite;
}
@keyframes wa-pulse{
  0%{ transform: scale(1); opacity: .6; }
  100%{ transform: scale(1.6); opacity: 0; }
}
@media (prefers-reduced-motion: reduce){ .wa-ring{ animation: none; display:none; } }

/* ---------- responsive ---------- */
@media (max-width: 900px){
  .main-nav{ position: fixed; top:74px; left:0; right:0; background: var(--bg); border-bottom: 1px solid var(--line);
    flex-direction:column; padding: 10px 28px 20px; gap: 4px; transform: translateY(-8px); opacity:0; pointer-events:none; transition: .2s ease; }
  .main-nav.open{ transform: translateY(0); opacity:1; pointer-events:auto; }
  .main-nav a{ padding: 10px 0; border-bottom: 1px solid var(--line); }
  .burger{ display:flex; }

  .hero{ grid-template-columns: 1fr; padding-top: 48px; }
  .hero-panel{ order:-1; }
  .about-grid, .contact-grid{ grid-template-columns: 1fr; gap: 34px; }
  .about-stats{ grid-template-columns: 1fr 1fr; }
  .module-grid{ grid-template-columns: 1fr 1fr; }
  .circuit-path{ grid-template-columns: 1fr; gap: 26px; }
  .circuit-path::before{ display:none; }
  .breaker-row{ grid-template-columns: 1fr 1fr; }
  .reviews-grid{ grid-template-columns: 1fr; }
}
@media (max-width: 560px){
  .module-grid{ grid-template-columns: 1fr; }
  .breaker-row{ grid-template-columns: 1fr; }
  .about-stats{ grid-template-columns: 1fr 1fr; }
  .header-row{ height:64px; }
}