/* Solar Squad — brand palette taken from the company's own inverter sticker:
   navy #1b2a6b, panel green #2f9e44 / #7ed957 */
:root{
  --navy:#1b2a6b; --navy-d:#131d4a; --navy-l:#2a3d8f;
  --green:#2f9e44; --green-l:#7ed957;
  --ink:#12161f; --body:#4a5262; --line:#e3e7ee;
  --bg:#fff; --bg-alt:#f5f7fb;
  --wrap:1180px; --r:14px;
  --sh:0 1px 2px rgba(16,24,48,.06), 0 8px 24px rgba(16,24,48,.07);
  --sh-l:0 12px 40px rgba(16,24,48,.16);
  --f:'Segoe UI',system-ui,-apple-system,'Helvetica Neue',Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}
  *{animation-duration:.01ms!important;transition-duration:.01ms!important}}
body{margin:0;font-family:var(--f);color:var(--body);background:var(--bg);
  line-height:1.62;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
h1,h2,h3{color:var(--ink);line-height:1.15;margin:0}
a{color:inherit}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}
.skip{position:absolute;left:-9999px;top:0;background:#fff;padding:12px 18px;z-index:200}
.skip:focus{left:8px;top:8px}
:focus-visible{outline:3px solid var(--green-l);outline-offset:2px;border-radius:4px}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--green);color:#fff;text-decoration:none;font-weight:650;
  padding:13px 24px;border-radius:999px;border:0;cursor:pointer;font-size:.95rem;
  transition:transform .15s, box-shadow .15s, background .15s;white-space:nowrap;
  box-shadow:0 6px 18px rgba(47,158,68,.28)}
.btn:hover{background:#268a3a;transform:translateY(-1px);box-shadow:0 10px 26px rgba(47,158,68,.36)}
.btn--lg{padding:16px 32px;font-size:1.02rem}
.btn--sm{padding:9px 18px;font-size:.88rem}
.btn--ghost{background:rgba(255,255,255,.1);border:1.5px solid rgba(255,255,255,.5);
  color:#fff;box-shadow:none;backdrop-filter:blur(6px)}
.btn--ghost:hover{background:rgba(255,255,255,.2);box-shadow:none}

/* ---------- nav ---------- */
.nav{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.86);
  backdrop-filter:saturate(180%) blur(14px);border-bottom:1px solid transparent;
  transition:border-color .2s, box-shadow .2s}
.nav.is-stuck{border-color:var(--line);box-shadow:0 2px 14px rgba(16,24,48,.06)}
.nav__in{display:flex;align-items:center;gap:24px;min-height:70px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-size:1.16rem;
  color:var(--navy);letter-spacing:-.02em}
.brand__txt strong{color:var(--green)}
.nav__links{display:flex;gap:28px;margin-left:auto}
.nav__links a{text-decoration:none;font-size:.93rem;font-weight:550;color:var(--body);
  position:relative;padding:4px 0}
.nav__links a::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--green);transform:scaleX(0);transition:transform .18s}
.nav__links a:hover{color:var(--navy)}
.nav__links a:hover::after{transform:scaleX(1)}
.burger{display:none;flex-direction:column;gap:5px;background:0;border:0;cursor:pointer;padding:8px}
.burger span{width:22px;height:2px;background:var(--navy);border-radius:2px;transition:.2s}
.burger[aria-expanded=true] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger[aria-expanded=true] span:nth-child(2){opacity:0}
.burger[aria-expanded=true] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mobile{display:none;flex-direction:column;border-top:1px solid var(--line);background:#fff}
.mobile a{padding:15px 24px;text-decoration:none;font-weight:550;border-bottom:1px solid var(--line)}
.mobile.is-open{display:flex}

/* ---------- hero ---------- */
.hero{position:relative;min-height:min(86vh,720px);display:flex;align-items:center;
  overflow:hidden;background:var(--navy-d)}
.hero__bg{position:absolute;inset:0;background-size:cover;background-position:center;
  transition:opacity 1.1s ease;transform:scale(1.04)}
.hero__scrim{position:absolute;inset:0;
  background:linear-gradient(105deg,rgba(19,29,74,.93) 0%,rgba(19,29,74,.72) 45%,rgba(19,29,74,.35) 100%)}
.hero__in{position:relative;padding-top:84px;padding-bottom:84px;color:#fff}
.hero__eyebrow{margin:0 0 14px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;
  font-size:.74rem;color:var(--green-l)}
.hero__eyebrow span{opacity:.6;font-weight:500}
.hero__h1{color:#fff;font-size:clamp(2.1rem,5.4vw,3.9rem);letter-spacing:-.03em;font-weight:750}
.hero__h1 em{font-style:normal;color:var(--green-l)}
.hero__sub{max-width:52ch;font-size:clamp(1rem,1.6vw,1.17rem);color:rgba(255,255,255,.86);
  margin:20px 0 32px}
.hero__cta{display:flex;gap:14px;flex-wrap:wrap}
.hero__stats{list-style:none;display:flex;gap:40px;flex-wrap:wrap;margin:52px 0 0;padding:32px 0 0;
  border-top:1px solid rgba(255,255,255,.18)}
.hero__stats li{display:flex;flex-direction:column}
.hero__stats b{color:#fff;font-size:1.05rem}
.hero__stats span{color:rgba(255,255,255,.6);font-size:.86rem}

/* ---------- sections ---------- */
.sec{padding:96px 0}
.sec--alt{background:var(--bg-alt)}
.eyebrow{margin:0 0 12px;font-weight:700;letter-spacing:.15em;text-transform:uppercase;
  font-size:.74rem;color:var(--green)}
.eyebrow--light{color:var(--green-l)}
.h2{font-size:clamp(1.7rem,3.4vw,2.5rem);letter-spacing:-.025em;font-weight:730}
.h2--light{color:#fff}
.lede{max-width:62ch;font-size:1.06rem;margin:16px 0 0}
.lede--light{color:rgba(255,255,255,.82)}
.fineprint{font-size:.8rem;color:#8891a3;margin-top:20px}

/* ---------- cards ---------- */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(248px,1fr));gap:22px;margin-top:48px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:30px 26px;
  transition:transform .18s, box-shadow .18s, border-color .18s}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh);border-color:#cfd6e4}
.card__ico{width:46px;height:46px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--green-l),var(--green));color:#fff;margin-bottom:18px}
.card__ico svg{width:24px;height:24px}
.card h3{font-size:1.13rem;margin-bottom:9px;letter-spacing:-.01em}
.card p{margin:0;font-size:.945rem}

/* ---------- filters + grid ---------- */
.filters{display:flex;gap:10px;flex-wrap:wrap;margin:40px 0 26px}
.chip{background:#fff;border:1px solid var(--line);color:var(--body);border-radius:999px;
  padding:9px 18px;font:inherit;font-size:.88rem;font-weight:550;cursor:pointer;
  transition:.16s}
.chip:hover{border-color:var(--green);color:var(--navy)}
.chip.is-on{background:var(--navy);border-color:var(--navy);color:#fff}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(255px,1fr));gap:14px}
.tile{position:relative;border:0;padding:0;margin:0;background:#dfe4ee;cursor:zoom-in;
  border-radius:11px;overflow:hidden;aspect-ratio:4/3;display:block;
  animation:pop .3s ease both}
@keyframes pop{from{opacity:0;transform:scale(.97)}to{opacity:1;transform:none}}
.tile img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.tile:hover img{transform:scale(1.06)}
.tile__cap{position:absolute;left:0;right:0;bottom:0;padding:26px 14px 12px;color:#fff;
  font-size:.83rem;text-align:left;line-height:1.35;
  background:linear-gradient(transparent,rgba(10,15,35,.82));
  opacity:0;transform:translateY(6px);transition:.22s}
.tile:hover .tile__cap,.tile:focus-visible .tile__cap{opacity:1;transform:none}

/* ---------- brands ---------- */
.brands{list-style:none;display:flex;flex-wrap:wrap;gap:12px;padding:0;margin:36px 0 0}
.brands li{background:#fff;border:1px solid var(--line);border-radius:999px;padding:11px 24px;
  font-weight:640;color:var(--navy);font-size:.95rem}

/* ---------- why ---------- */
.why{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.ticks{list-style:none;padding:0;margin:30px 0 34px;display:grid;gap:15px}
.ticks li{position:relative;padding-left:32px;font-size:.98rem}
.ticks b{color:var(--ink)}
.ticks li::before{content:"";position:absolute;left:0;top:6px;width:19px;height:19px;
  border-radius:50%;background:var(--green);
  -webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M20 6 9 17l-5-5' fill='none' stroke='%23000' stroke-width='3.4' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/13px no-repeat,linear-gradient(#000,#000);
  -webkit-mask-composite:xor;mask-composite:exclude}
.why__img{margin:0}
.why__img img{border-radius:var(--r);box-shadow:var(--sh-l);width:100%;height:auto}
.why__img figcaption{font-size:.83rem;color:#8891a3;margin-top:12px;text-align:center}

/* ---------- cta ---------- */
.cta{background:linear-gradient(115deg,var(--navy-d),var(--navy-l));padding:88px 0}
.cta__in{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.cta__box{display:grid;gap:12px}
.ctaline{display:flex;align-items:center;gap:16px;background:rgba(255,255,255,.07);
  border:1px solid rgba(255,255,255,.16);border-radius:var(--r);padding:17px 20px;
  text-decoration:none;color:#fff;transition:.18s}
.ctaline:hover{background:rgba(255,255,255,.14);transform:translateX(4px);
  border-color:rgba(255,255,255,.32)}
.ctaline__ico{flex:0 0 42px;height:42px;border-radius:11px;display:grid;place-items:center;
  background:var(--green);color:#fff}
.ctaline__ico svg{width:21px;height:21px}
.ctaline b{display:block;font-size:1.02rem;letter-spacing:-.01em}
.ctaline small{color:rgba(255,255,255,.62);font-size:.83rem}

/* ---------- footer ---------- */
.foot{background:var(--ink);color:rgba(255,255,255,.62);padding:34px 0;font-size:.88rem}
.foot__in{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap}
.foot__brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:650}
.foot__brand small{font-weight:400;color:rgba(255,255,255,.5)}
.foot__c{margin:0}

/* ---------- lightbox ---------- */
.lb{position:fixed;inset:0;z-index:200;background:rgba(8,11,24,.95);
  display:grid;place-items:center;padding:28px;animation:fade .2s}
@keyframes fade{from{opacity:0}to{opacity:1}}
.lb[hidden]{display:none}
.lb__fig{margin:0;max-width:100%;max-height:100%;display:flex;flex-direction:column;gap:14px}
.lb__fig img{max-width:100%;max-height:82vh;object-fit:contain;border-radius:8px;margin:auto}
.lb__fig figcaption{color:rgba(255,255,255,.75);text-align:center;font-size:.9rem}
.lb__x{position:absolute;top:16px;right:20px;background:0;border:0;color:#fff;font-size:2.4rem;
  line-height:1;cursor:pointer;opacity:.7;padding:8px}
.lb__x:hover{opacity:1}
.lb__nav{position:absolute;top:50%;transform:translateY(-50%);background:rgba(255,255,255,.1);
  border:0;color:#fff;font-size:2.2rem;width:52px;height:52px;border-radius:50%;cursor:pointer;
  display:grid;place-items:center;transition:.16s}
.lb__nav:hover{background:rgba(255,255,255,.25)}
.lb__nav--p{left:20px} .lb__nav--n{right:20px}

/* ---------- back to top ---------- */
.totop{position:fixed;right:22px;bottom:22px;z-index:150;width:48px;height:48px;
  border:0;border-radius:50%;background:var(--green);color:#fff;cursor:pointer;
  display:grid;place-items:center;box-shadow:0 8px 22px rgba(47,158,68,.42);
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity .22s, transform .22s, visibility .22s, background .15s}
.totop.is-show{opacity:1;visibility:visible;transform:none}
.totop:hover{background:#268a3a}
.totop svg{width:22px;height:22px}

/* ---------- responsive ---------- */
@media (max-width:900px){
  .nav__links,.nav .btn--sm{display:none}
  .burger{display:flex;margin-left:auto}
  .why,.cta__in{grid-template-columns:1fr;gap:38px}
  .sec{padding:72px 0}
  .hero__stats{gap:26px}
}
@media (max-width:560px){
  .wrap{padding:0 24px}
  .hero{min-height:auto}
  .hero__in{padding:64px 0}
  .hero__cta .btn{flex:1 1 100%}
  .grid{grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:10px}
  .lb__nav{width:42px;height:42px;font-size:1.7rem}
  .lb__nav--p{left:6px} .lb__nav--n{right:6px}
  .totop{right:14px;bottom:14px;width:44px;height:44px}
}

/* ---------- dark mode ---------- */
@media (prefers-color-scheme:dark){
  :root{--ink:#f2f5fa;--body:#a8b2c6;--line:#2a3244;--bg:#0e1220;--bg-alt:#141a2b}
  .nav{background:rgba(14,18,32,.86)}
  .nav.is-stuck{box-shadow:0 2px 14px rgba(0,0,0,.4)}
  .brand{color:#fff}
  .mobile{background:var(--bg)}
  .card,.chip,.brands li{background:#161d2f}
  .card:hover{border-color:#3a4459}
  .chip:hover{color:#fff}
  .chip.is-on{background:var(--green);border-color:var(--green)}
  .foot{background:#080b14}
}