/* ============================================================
   SOLAR ONE — Nike-inspired design system (shared stylesheet)
   Pure black / white / single-gray. Photography-first.
   Pill CTAs. Flat zero-radius cards. 8px grid.
   ============================================================ */
:root{
  --ink:#111111; --on-ink:#ffffff; --canvas:#ffffff; --cloud:#f5f5f5;
  --charcoal:#39393b; --ash:#4b4b4d; --mute:#707072; --stone:#9e9ea0;
  --hairline:#cacacb; --hairline-soft:#e5e5e5;
  --sale:#d30005; --success:#007d48; --success-bright:#1eaa52; --info:#1151ff;
  --display:"Bebas Neue", "Arial Narrow", sans-serif;
  --sans:"Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --maxw:1440px;
  --sec:48px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--canvas);color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.5;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
::selection{background:var(--ink);color:#fff}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 40px}
@media (max-width:640px){ .wrap{padding:0 18px} }

/* ---------- Type ---------- */
.campaign{font-family:var(--display);font-weight:400;text-transform:uppercase;line-height:.88;letter-spacing:-.5px;font-size:clamp(54px,10vw,116px);margin:0}
.h-xl{font-weight:600;font-size:clamp(26px,3.4vw,32px);line-height:1.15;letter-spacing:-.3px;margin:0}
.h-lg{font-weight:600;font-size:24px;line-height:1.2;margin:0}
.h-md{font-weight:600;font-size:16px;line-height:1.6;margin:0}
.eyebrow{font-weight:600;font-size:12px;letter-spacing:1.6px;text-transform:uppercase;color:var(--mute);margin:0}
.body{font-size:16px;line-height:1.55;color:var(--charcoal)}
.lead{font-size:18px;line-height:1.5;color:var(--charcoal)}
.cap{font-size:14px;font-weight:500;color:var(--mute)}
.strong{font-weight:600}
.ink{color:var(--ink)} .mute{color:var(--mute)}

/* ---------- Buttons (pill only) ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-family:var(--sans);font-size:16px;font-weight:600;line-height:1;cursor:pointer;border:0;border-radius:9999px;padding:16px 32px;min-height:48px;transition:transform .08s ease,background .15s ease,color .15s ease,border-color .15s ease;white-space:nowrap}
.btn:active{transform:scale(.97)}
.btn:focus-visible{outline:2px solid var(--ink);outline-offset:3px}
.btn-primary{background:var(--ink);color:var(--on-ink)}
.btn-primary:hover{background:#000}
.btn-secondary{background:var(--cloud);color:var(--ink)}
.btn-secondary:hover{background:#ececec}
.btn-on-image{background:var(--canvas);color:var(--ink);padding:13px 26px}
.btn-on-image:hover{background:#f2f2f2}
.btn-sm{font-size:14px;padding:11px 22px;min-height:40px}
.btn-icon{width:44px;height:44px;min-height:44px;padding:0;border-radius:9999px;background:var(--cloud)}
.btn-block{width:100%}
.link{font-weight:500;text-decoration:underline;text-underline-offset:3px}
.link:hover{color:var(--mute)}

/* ---------- Badges ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--hairline);background:var(--canvas);color:var(--ink);font-size:12px;font-weight:600;letter-spacing:.4px;text-transform:uppercase;border-radius:9999px;padding:5px 13px}
.badge-ink{background:var(--ink);color:#fff;border-color:var(--ink)}

/* ---------- Utility bar ---------- */
.util{background:var(--cloud);font-size:12px;font-weight:500;color:var(--ink)}
.util .wrap{display:flex;align-items:center;justify-content:space-between;height:36px}
.util .left{color:var(--mute)}
.util .right{display:flex;gap:18px}
.util a:hover{color:var(--mute)}
@media (max-width:640px){ .util .left{display:none} .util .wrap{justify-content:flex-end} }

/* ---------- Primary nav ---------- */
.nav{position:sticky;top:0;z-index:60;background:var(--canvas);box-shadow:inset 0 -1px 0 var(--hairline-soft)}
.nav .wrap{display:flex;align-items:center;gap:24px;height:76px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:18px;letter-spacing:-.3px}
.brand .mark{width:30px;height:30px}
.brand b{font-weight:700}
.nav-center{display:flex;gap:6px;margin:0 auto}
.nav-center a{font-weight:600;font-size:15px;padding:8px 12px;position:relative;color:var(--ink)}
.nav-center a:hover{color:var(--mute)}
.nav-center a.active{box-shadow:inset 0 -2px 0 var(--ink)}
.nav-right{display:flex;align-items:center;gap:12px}
.nav-cta{display:inline-flex}
.hamburger{display:none;width:44px;height:44px;align-items:center;justify-content:center;background:none;border:0;cursor:pointer}
.hamburger svg{width:24px;height:24px;stroke:var(--ink);stroke-width:2;fill:none}
@media (max-width:1080px){
  .nav-center{display:none}
  .hamburger{display:flex}
  .nav .wrap{gap:12px}
  .brand{margin-right:auto}
}
/* mobile drawer */
.drawer{position:fixed;inset:0;z-index:70;background:var(--canvas);transform:translateX(-100%);transition:transform .25s ease;display:flex;flex-direction:column;padding:18px}
.drawer.open{transform:none}
.drawer .dh{display:flex;align-items:center;justify-content:space-between;height:46px;margin-bottom:16px}
.drawer .dh button{background:none;border:0;cursor:pointer;width:44px;height:44px}
.drawer .dh svg{width:26px;height:26px;stroke:var(--ink);stroke-width:2;fill:none}
.drawer nav a{display:block;font-family:var(--display);font-size:40px;text-transform:uppercase;letter-spacing:-.5px;line-height:1;padding:16px 0;border-bottom:1px solid var(--hairline-soft)}
.drawer .dcta{margin-top:auto;display:flex;flex-direction:column;gap:10px;padding-top:18px}

/* ---------- Section rhythm ---------- */
section{padding:var(--sec) 0}
.sec-tight{padding:24px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:24px}
.section-head .h-xl{text-transform:uppercase}

/* ---------- Campaign tile (signature) ---------- */
.campaign-tile{position:relative;overflow:hidden;background:var(--ink);min-height:78vh;display:flex;align-items:flex-end}
.campaign-tile.short{min-height:54vh}
.campaign-tile img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.campaign-tile .scrim{position:absolute;inset:0;background:linear-gradient(to top,rgba(0,0,0,.62) 0%,rgba(0,0,0,.18) 45%,rgba(0,0,0,0) 72%),linear-gradient(to right,rgba(0,0,0,.62) 0%,rgba(0,0,0,.28) 42%,rgba(0,0,0,0) 78%)}
.campaign-tile .ct-inner{position:relative;z-index:2;padding:48px 40px;color:#fff;max-width:1040px}
.campaign-tile .eyebrow{color:rgba(255,255,255,.85)}
.campaign-tile .campaign{color:#fff;margin:10px 0 22px}
.campaign-tile .sub{color:rgba(255,255,255,.92);font-size:18px;max-width:48ch;margin:0 0 26px;line-height:1.45}
.ct-actions{display:flex;gap:12px;flex-wrap:wrap}
@media (max-width:640px){ .campaign-tile{min-height:64vh} .campaign-tile .ct-inner{padding:26px 18px} }

/* ---------- Product / category cards ---------- */
.grid{display:grid;gap:8px}
.cols-3{grid-template-columns:repeat(3,1fr)}
.cols-4{grid-template-columns:repeat(4,1fr)}
.cols-2{grid-template-columns:repeat(2,1fr)}
.card{background:var(--canvas)}
.card .ph{position:relative;aspect-ratio:1/1;background:var(--cloud);overflow:hidden;display:flex;align-items:center;justify-content:center}
.card .ph img{width:100%;height:100%;object-fit:cover}
.card .ph .promo{position:absolute;top:12px;left:12px}
.card .meta{padding-top:10px;display:flex;flex-direction:column;gap:4px}
.card .meta .name{font-weight:600;font-size:16px}
.card .meta .sub{font-size:14px;color:var(--mute)}
.card .meta .price{font-weight:600;font-size:16px;margin-top:2px}
@media (max-width:1023px){ .cols-3{grid-template-columns:repeat(2,1fr)} .cols-4{grid-template-columns:repeat(2,1fr)} }
@media (max-width:599px){ .cols-3,.cols-4,.cols-2{grid-template-columns:1fr} }

/* category/need card with photo + on-image pill */
.need-card{position:relative;aspect-ratio:4/5;overflow:hidden;background:var(--ink);display:flex;align-items:flex-end}
.need-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.need-card .scrim{position:absolute;inset:0;background:linear-gradient(to top,rgba(0,0,0,.62) 0%,rgba(0,0,0,.2) 40%,rgba(0,0,0,0) 68%)}
.need-card .nc-in{position:relative;z-index:2;padding:18px;color:#fff;width:100%}
.need-card .nc-in .t{font-family:var(--display);font-size:34px;text-transform:uppercase;line-height:.95;letter-spacing:-.5px;margin:0 0 12px}

/* ---------- Filter chips ---------- */
.chips{display:flex;gap:10px;flex-wrap:wrap}
.chip{background:var(--canvas);color:var(--ink);border:1px solid var(--hairline);border-radius:9999px;padding:9px 18px;font-weight:600;font-size:14px;cursor:pointer;transition:background .15s,color .15s,border-color .15s}
.chip:hover{border-color:var(--ink)}
.chip.active{background:var(--ink);color:#fff;border-color:var(--ink)}

/* ---------- Disclosure rows ---------- */
.disclosure{border-top:1px solid var(--hairline)}
.disclosure:last-child{border-bottom:1px solid var(--hairline)}
.disclosure .row{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:22px 0;cursor:pointer;background:none;border:0;width:100%;text-align:left;font:inherit}
.disclosure .row .h-md{font-weight:600}
.disclosure .row .chev{width:20px;height:20px;stroke:var(--ink);stroke-width:2;fill:none;transition:transform .2s ease;flex:0 0 20px}
.disclosure.open .chev{transform:rotate(180deg)}
.disclosure .panel{max-height:0;overflow:hidden;transition:max-height .3s ease}
.disclosure.open .panel{max-height:600px}
.disclosure .panel .inner{padding:0 0 24px;color:var(--charcoal);font-size:15px;line-height:1.6}

/* spec table */
.spec{width:100%;border-collapse:collapse;margin-top:6px}
.spec td{padding:9px 0;border-bottom:1px solid var(--hairline-soft);font-size:14px;vertical-align:top}
.spec td:first-child{color:var(--mute);width:42%;font-weight:500}
.spec td:last-child{font-weight:500}

/* ---------- Stats strip ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;border-top:1px solid var(--hairline);border-bottom:1px solid var(--hairline)}
.stats .s{padding:28px 0}
.stats .s b{display:block;font-family:var(--display);font-size:clamp(40px,5vw,64px);line-height:1;letter-spacing:-.5px}
.stats .s span{font-size:13px;color:var(--mute);font-weight:500}
@media (max-width:599px){ .stats{grid-template-columns:1fr 1fr} }

/* ---------- Forms ---------- */
.form{display:grid;grid-template-columns:1fr 1fr;gap:18px}
@media (max-width:600px){ .form{grid-template-columns:1fr;gap:14px} }
.field{display:flex;flex-direction:column;gap:7px;min-width:0}
.field.full{grid-column:1/-1}
.field label{font-size:13px;font-weight:600}
.field .hint{font-size:12px;color:var(--mute);font-weight:500}
.field .req{color:var(--sale)}
input,select,textarea{font-family:var(--sans);font-size:16px;color:var(--ink);background:var(--canvas);border:1px solid var(--hairline);border-radius:24px;padding:13px 18px;min-height:48px;width:100%;max-width:100%;min-width:0;transition:border-color .15s,box-shadow .15s}
textarea{border-radius:18px;min-height:120px;resize:vertical}
input:focus,select:focus,textarea:focus{outline:0;border-color:var(--ink);box-shadow:0 0 0 4px var(--cloud)}
input.invalid,select.invalid,textarea.invalid{border-color:var(--sale)}
.err{color:var(--sale);font-size:12px;font-weight:600;display:none}
.err.show{display:block}
/* checkbox/radio pill groups */
.optset{display:flex;gap:10px;flex-wrap:wrap}
.opt{position:relative}
.opt input{position:absolute;opacity:0;inset:0;cursor:pointer}
.opt span{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--hairline);border-radius:9999px;padding:10px 18px;font-weight:600;font-size:14px;cursor:pointer;min-height:44px}
.opt input:checked + span{background:var(--ink);color:#fff;border-color:var(--ink)}
.opt input:focus-visible + span{outline:2px solid var(--ink);outline-offset:2px}

/* ---------- Footer ---------- */
footer{border-top:1px solid var(--hairline);padding:48px 0 32px;background:var(--canvas)}
.fcols{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px}
.fcols h5{font-size:14px;font-weight:600;margin:0 0 16px;text-transform:uppercase;letter-spacing:.6px}
.fcols a{display:block;font-size:14px;color:var(--mute);padding:5px 0}
.fcols a:hover{color:var(--ink)}
.fbrand{display:flex;align-items:center;gap:10px;margin-bottom:14px;font-weight:700;font-size:18px}
.fcols p{color:var(--mute);font-size:14px;max-width:34ch;margin:0 0 16px}
.members{display:flex;gap:8px;flex-wrap:wrap}
.members span{font-size:11px;font-weight:600;letter-spacing:.4px;text-transform:uppercase;border:1px solid var(--hairline);border-radius:9999px;padding:6px 12px}
.socials{display:flex;gap:10px;margin-top:14px}
.socials a{width:42px;height:42px;border-radius:9999px;background:var(--cloud);display:flex;align-items:center;justify-content:center}
.socials a:hover{background:#ececec}
.socials svg{width:18px;height:18px;fill:var(--ink)}
.fine{border-top:1px solid var(--hairline-soft);margin-top:36px;padding-top:20px;font-size:11px;color:var(--mute);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
@media (max-width:768px){ .fcols{grid-template-columns:1fr 1fr} }
@media (max-width:480px){ .fcols{grid-template-columns:1fr} }

/* reveal */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .55s ease,transform .55s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){ .reveal{opacity:1;transform:none;transition:none} *{scroll-behavior:auto!important} }

/* ============================================================
   ADD-ONS: WhatsApp bubble · File upload · Motion
   ============================================================ */

/* ---------- WhatsApp floating bubble ---------- */
.wa-fab{position:fixed;right:22px;bottom:22px;z-index:55;display:flex;align-items:center;gap:0;background:#25D366;color:#fff;border-radius:9999px;height:58px;width:58px;box-shadow:0 8px 24px rgba(0,0,0,.22);overflow:hidden;transition:width .28s cubic-bezier(.2,.7,.2,1),box-shadow .2s;will-change:width}
.wa-fab svg{width:30px;height:30px;flex:0 0 58px;margin:0 auto;fill:#fff}
.wa-fab .wa-label{white-space:nowrap;font-weight:600;font-size:15px;opacity:0;transition:opacity .2s;padding-right:4px}
.wa-fab:hover{width:206px;box-shadow:0 10px 28px rgba(0,0,0,.28)}
.wa-fab:hover .wa-label{opacity:1}
.wa-fab:focus-visible{outline:3px solid #128C7E;outline-offset:3px}
.wa-fab::after{content:"";position:absolute;inset:0;border-radius:9999px;box-shadow:0 0 0 0 rgba(37,211,102,.5);animation:waPulse 2.6s ease-out infinite}
@keyframes waPulse{0%{box-shadow:0 0 0 0 rgba(37,211,102,.45)}70%{box-shadow:0 0 0 16px rgba(37,211,102,0)}100%{box-shadow:0 0 0 0 rgba(37,211,102,0)}}
@media (max-width:640px){ .wa-fab{right:16px;bottom:16px} }

/* ---------- File upload dropzone ---------- */
.drop{border:1.5px dashed var(--hairline);border-radius:18px;padding:24px;text-align:center;cursor:pointer;transition:border-color .15s,background .15s}
.drop:hover{border-color:var(--ink);background:var(--cloud)}
.drop.drag{border-color:var(--ink);background:var(--cloud)}
.drop .di{width:44px;height:44px;margin:0 auto 10px;border-radius:9999px;background:var(--cloud);display:flex;align-items:center;justify-content:center}
.drop .di svg{width:22px;height:22px;stroke:var(--ink);stroke-width:1.8;fill:none}
.drop b{font-weight:600;font-size:15px;display:block;margin-bottom:2px}
.drop span{font-size:13px;color:var(--mute)}
.drop input[type=file]{display:none}
.filelist{display:flex;flex-direction:column;gap:8px;margin-top:12px}
.filechip{display:flex;align-items:center;gap:10px;background:var(--cloud);border-radius:12px;padding:10px 12px;font-size:14px;font-weight:500}
.filechip svg{width:18px;height:18px;stroke:var(--ink);stroke-width:1.8;fill:none;flex:0 0 18px}
.filechip .nm{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.filechip .sz{color:var(--mute);font-size:12px}
.filechip .rm{background:none;border:0;cursor:pointer;color:var(--mute);font-weight:700;font-size:18px;line-height:1;padding:0 4px}
.filechip .rm:hover{color:var(--sale)}

/* ---------- Motion ---------- */
/* headline line-rise */
.campaign .lmask{display:block;overflow:hidden}
.campaign .line{display:block;transform:translateY(112%);opacity:0;transition:transform .85s cubic-bezier(.2,.75,.2,1),opacity .85s ease}
.campaign.in .line{transform:none;opacity:1}
/* parallax base — slight overscale so translate never reveals edges */
.campaign-tile img{transform:scale(1.12);will-change:transform}
/* generic fade/zoom-in for images flagged */
.img-rise{clip-path:inset(0 0 0 0);overflow:hidden}
.img-rise img{transform:scale(1.06);transition:transform 1.2s cubic-bezier(.2,.7,.2,1)}
.img-rise.in img{transform:scale(1)}
@media (prefers-reduced-motion:reduce){
  .campaign .line{transform:none;opacity:1;transition:none}
  .campaign-tile img{transform:none}
  .img-rise img{transform:none;transition:none}
}

/* ---------- Brand logo (real Solar One lockup) ---------- */
.brand-logo{height:54px;width:auto;display:block}
.drawer .dh .brand-logo{height:42px}
.fbrand .brand-logo{height:52px}
@media (max-width:640px){ .brand-logo{height:44px} }

.video-embed{position:relative;aspect-ratio:16/9;overflow:hidden;background:#000;cursor:pointer;display:block}
.video-embed img{width:100%;height:100%;object-fit:cover;opacity:.82;transition:opacity .3s ease,transform .6s cubic-bezier(.2,.7,.2,1)}
.video-embed:hover img{opacity:1;transform:scale(1.03)}
.video-embed .play{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;pointer-events:none}
.video-embed .play span{width:84px;height:84px;border-radius:50%;background:rgba(255,255,255,.95);display:flex;align-items:center;justify-content:center;transition:transform .2s ease,background .2s ease;box-shadow:0 6px 24px rgba(0,0,0,.3)}
.video-embed:hover .play span{transform:scale(1.08)}
.video-embed .play svg{width:32px;height:32px;fill:var(--ink);margin-left:5px}
.video-embed:focus-visible{outline:3px solid #fff;outline-offset:3px}
.video-embed iframe{position:absolute;inset:0;width:100%;height:100%;border:0}

/* ---------- Home estimator teaser band ---------- */
.est-teaser{background:var(--ink);color:#fff;padding:48px 40px;display:grid;grid-template-columns:1fr auto;gap:28px;align-items:center}
.est-teaser .btn{justify-self:start;white-space:nowrap}
@media (max-width:760px){
  .est-teaser{grid-template-columns:1fr;padding:32px 22px;gap:20px}
}