/* SolarKit.co — Apple/Xiaomi product language
   ENERGY 2 / RHYTHM 2 / MOTION 2
   Why B/W: owner brief. Why system sans: SF-like product familiarity.
   Why glass only on header: one frosted layer, not everywhere (Fountain #2).
   Why no cards on prose: whitespace groups content (Fountain #5).
*/
:root{
  --accent:#FF6A00;
  --accent-press:#E85E00;
  --accent-hover:#FF7A1A;
  --ok:#1F7A3F;
  --black:#000;
  --ink:#0a0a0a;
  --white:#fff;
  --wash:#f5f5f7;
  --muted:#6e6e73;
  --line:rgba(0,0,0,.08);
  --line-on-dark:rgba(255,255,255,.14);
  --max:980px;
  --wide:1120px;
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--white);color:var(--ink);font:17px/1.47 var(--font);-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:inherit}
.skip{position:absolute;left:-999px}
.skip:focus{left:1rem;top:1rem;z-index:99;background:#fff;padding:.5rem .75rem;border:2px solid #000}

/* Frosted sticky header — only glass element on site */
.top{
  position:sticky;top:0;z-index:40;
  background:rgba(255,255,255,.72);
  -webkit-backdrop-filter:saturate(180%) blur(20px);
  backdrop-filter:saturate(180%) blur(20px);
  border-bottom:1px solid var(--line);
}
.top.dark{
  background:rgba(0,0,0,.72);
  border-bottom-color:var(--line-on-dark);
  color:#fff;
}
.bar{width:min(100% - 2rem, var(--wide));margin:0 auto;min-height:48px;display:flex;align-items:center;justify-content:space-between;gap:1rem}
.logo{font-weight:600;letter-spacing:-.02em;text-decoration:none;font-size:1.05rem}
.logo b{font-weight:600}
.desk ul{list-style:none;margin:0;padding:0;display:flex;gap:1.35rem;flex-wrap:wrap}
.desk a{text-decoration:none;font-size:.78rem;color:var(--ink);opacity:.88}
.desk a:hover{opacity:1}
.top.dark .desk a{color:#fff}
.menu{display:none}
.menu summary{list-style:none;cursor:pointer;font-size:.85rem;padding:.4rem .55rem;border:1px solid var(--line);border-radius:980px;min-height:36px}
.menu summary::-webkit-details-marker{display:none}
.menu nav{position:absolute;right:1rem;margin-top:.4rem;background:#fff;border:1px solid var(--line);border-radius:14px;padding:.4rem;min-width:220px;box-shadow:0 12px 40px rgba(0,0,0,.08)}
.menu a{display:block;padding:.55rem .7rem;text-decoration:none;font-size:.9rem;border-radius:8px}
.menu a:hover{background:var(--wash)}
@media (max-width:860px){.desk{display:none}.menu{display:block;position:relative}}

.wrap{width:min(100% - 2.5rem, var(--wide));margin:0 auto}
.wrap.narrow{width:min(100% - 2.5rem, var(--max))}

/* Full-bleed bands */
.band{padding:clamp(4rem,10vw,7.5rem) 0}
.band.black{background:var(--black);color:#f5f5f7}
.band.wash{background:var(--wash);color:var(--ink)}
.band.white{background:var(--white);color:var(--ink)}
.band.tight{padding:clamp(2.5rem,6vw,4rem) 0}

.eyebrow{font-size:.78rem;font-weight:600;letter-spacing:.02em;color:var(--muted);margin:0 0 .85rem}
.band.black .eyebrow{color:rgba(255,255,255,.55)}

h1,h2,h3{font-weight:700;letter-spacing:-.035em;line-height:1.05;margin:0}
h1{font-size:clamp(2.6rem,7.2vw,5.2rem);max-width:12ch}
h2{font-size:clamp(1.9rem,4.6vw,3.2rem);max-width:16ch}
h3{font-size:clamp(1.2rem,2vw,1.55rem);letter-spacing:-.025em}
.lede{font-size:clamp(1.05rem,2vw,1.35rem);line-height:1.4;color:var(--muted);max-width:34rem;margin:1rem 0 0;font-weight:400}
.band.black .lede{color:rgba(255,255,255,.62)}
.center{text-align:center}
.center h1,.center h2,.center .lede{margin-left:auto;margin-right:auto}

.btn-row{display:flex;flex-wrap:wrap;gap:.75rem 1.25rem;margin-top:1.6rem;align-items:center}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:44px;padding:.7rem 1.25rem;border-radius:980px;
  text-decoration:none;font-size:1rem;font-weight:500;
  background:var(--ink);color:#fff;border:1px solid var(--ink);
}
.btn:hover{background:#333;border-color:#333}
.btn.light{background:#fff;color:#000;border-color:#fff}
.btn.light:hover{background:#e8e8ed;border-color:#e8e8ed}
.btn.ghost{background:transparent;color:var(--ink);border-color:rgba(0,0,0,.28)}
.btn.ghost:hover{background:rgba(0,0,0,.04)}
.band.black .btn.ghost,
.hero-fullbleed .btn.ghost{
  color:#fff;border-color:rgba(255,255,255,.85);background:transparent;
}
.band.black .btn.ghost:hover,
.hero-fullbleed .btn.ghost:hover{background:rgba(255,255,255,.12);border-color:#fff}
/* Apple-style text link on photo heroes */
.hero-fullbleed .text-link,
.band.black .text-link{
  color:#fff;text-decoration:none;font-size:1.05rem;font-weight:500;
  display:inline-flex;align-items:center;gap:.2rem;min-height:44px;
}
.hero-fullbleed .text-link:hover,
.band.black .text-link:hover{text-decoration:underline;text-underline-offset:3px}
.hero-fullbleed .text-link::after,
.band.black .text-link::after{content:" ›";font-weight:400}
.band.white .text-link,.band.wash .text-link{color:var(--ink)}
.band.white .text-link::after,.band.wash .text-link::after{content:" ›";font-weight:400}
.linkish{color:#06c;text-decoration:none;font-weight:500;font-size:1.05rem}
.linkish:hover{text-decoration:underline}
.band.black .linkish{color:#2997ff}
.pair{display:flex;gap:1.5rem;flex-wrap:wrap;margin-top:1rem}
.pair a{color:#06c;text-decoration:none;font-weight:500}
.pair a:hover{text-decoration:underline}
.band.black .pair a{color:#2997ff}

/* Hero with image */
.hero-stage{position:relative;overflow:hidden}
.hero-stage .copy{position:relative;z-index:2;padding-top:clamp(2rem,6vw,4rem)}
.hero-visual{margin:clamp(2rem,5vw,3.5rem) auto 0;width:min(100%,920px)}
.hero-visual img{width:100%;border-radius:18px}
.hero-fullbleed{min-height:min(88vh,820px);display:grid;align-items:end;position:relative;overflow:hidden}
.hero-fullbleed .bg{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
  transform:scale(1.04); will-change:transform;
}
.hero-fullbleed .veil{position:absolute;inset:0;background:linear-gradient(to top, rgba(0,0,0,.72) 0%, rgba(0,0,0,.25) 45%, rgba(0,0,0,.15) 100%)}
.hero-fullbleed .copy{position:relative;z-index:2;padding:0 0 clamp(3rem,8vw,5rem);color:#fff}
.hero-fullbleed .lede{color:rgba(255,255,255,.72)}

/* Big stats — not decorative dots; real labeled figures */
.stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;background:var(--line);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.stats > div{background:var(--white);padding:clamp(1.6rem,4vw,2.6rem) 1.2rem;text-align:center}
.stats .n{font-size:clamp(2rem,5vw,3.4rem);font-weight:700;letter-spacing:-.04em;line-height:1}
.stats .l{margin-top:.45rem;font-size:.9rem;color:var(--muted)}
@media (max-width:700px){.stats{grid-template-columns:1fr}}

/* Countdown as product launch timer */
.countdown{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:.5rem;max-width:28rem;margin:1.4rem auto 0}
.countdown .box{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);border-radius:12px;padding:.85rem .4rem;text-align:center}
.band.white .countdown .box,.band.wash .countdown .box{background:#fff;border-color:var(--line)}
.countdown .num{font-size:clamp(1.4rem,3vw,2rem);font-weight:700;letter-spacing:-.03em}
.countdown .lbl{font-size:.65rem;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin-top:.25rem}
@media (max-width:480px){.countdown{grid-template-columns:repeat(2,1fr)}}

/* Split storytelling */
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(1.5rem,5vw,3.5rem);align-items:center}
.split.reverse{direction:rtl}.split.reverse > *{direction:ltr}
.split .media img{width:100%;border-radius:16px;background:var(--wash)}
@media (max-width:800px){.split,.split.reverse{grid-template-columns:1fr;direction:ltr}}

/* Product tiles — cards ONLY here (actionable products) */
.tiles{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1.25rem;list-style:none;margin:2rem 0 0;padding:0}
.tile{background:var(--wash);border-radius:22px;padding:clamp(1.4rem,3vw,2.2rem);text-align:center;display:flex;flex-direction:column;min-height:100%}
.tile img{margin:0 auto 1.2rem;max-height:260px;object-fit:contain}
.tile h3{margin:.2rem 0 .35rem}
.tile p{color:var(--muted);font-size:.95rem;margin:0 0 1rem;flex:1}
.tile .actions{display:flex;justify-content:center;gap:1.25rem;margin-top:auto}
@media (max-width:700px){.tiles{grid-template-columns:1fr}}

/* City list — not cards; simple text rows */
.city-list{list-style:none;margin:1.5rem 0 0;padding:0;border-top:1px solid var(--line)}
.city-list li{border-bottom:1px solid var(--line)}
.city-list a{display:flex;justify-content:space-between;align-items:center;padding:1.1rem 0;text-decoration:none;font-size:1.15rem;font-weight:600;letter-spacing:-.02em;min-height:52px}
.city-list a span{font-weight:400;font-size:.9rem;color:var(--muted)}
.city-list a:hover{opacity:.7}

/* Sticky product subnav */
.subnav{
  position:sticky;top:48px;z-index:30;
  background:rgba(255,255,255,.86);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.subnav .inner{width:min(100% - 2rem,var(--wide));margin:0 auto;display:flex;align-items:center;justify-content:space-between;min-height:52px;gap:1rem}
.subnav .name{font-weight:600;font-size:.95rem}
.subnav nav{display:flex;gap:1.1rem;flex-wrap:wrap}
.subnav a{font-size:.78rem;text-decoration:none;color:var(--muted)}
.subnav a:hover{color:var(--ink)}
.subnav .buy{background:#000;color:#fff;padding:.45rem .95rem;border-radius:980px;font-size:.8rem;font-weight:500}
.subnav .buy:hover{background:#333;color:#fff}

/* Compare table — Apple style */
.compare-wrap{overflow-x:auto;margin-top:2rem;-webkit-overflow-scrolling:touch}
table.compare{width:100%;border-collapse:collapse;min-width:640px;font-size:.95rem}
table.compare th,table.compare td{padding:1rem .9rem;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
table.compare th{font-size:.75rem;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);font-weight:600}
table.compare td.price{font-size:1.25rem;font-weight:700;letter-spacing:-.02em}
.small{font-size:.85rem;color:var(--muted)}
.disclosure{font-size:.85rem;color:var(--muted);max-width:36rem;margin:1.2rem 0 0}
.content p{max-width:38rem}
.content ul,.content ol{max-width:38rem;padding-left:1.2rem}
.content li{margin:.35rem 0}
.faq details{border-bottom:1px solid var(--line);padding:.9rem 0}
.faq summary{cursor:pointer;font-weight:600;font-size:1.05rem;letter-spacing:-.015em;min-height:44px;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:1rem}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-weight:400;color:var(--muted);font-size:1.4rem}
.faq details[open] summary::after{content:"–"}
.faq details p{margin:.55rem 0 0;color:var(--muted);max-width:36rem}

.crumbs{font-size:.8rem;color:var(--muted);margin:0 0 1rem}
.crumbs a{color:var(--muted);text-decoration:none}
.crumbs a:hover{text-decoration:underline}

.foot{background:var(--wash);border-top:1px solid var(--line);padding:3rem 0 2.5rem;font-size:.85rem;color:var(--muted)}
.foot .cols{display:grid;grid-template-columns:2fr 1fr 1fr;gap:2rem;width:min(100% - 2.5rem,var(--wide));margin:0 auto}
.foot strong{display:block;color:var(--ink);margin-bottom:.5rem;font-size:.9rem}
.foot ul{list-style:none;margin:0;padding:0}
.foot a{color:var(--muted);text-decoration:none;display:inline-block;padding:.35rem 0;min-height:28px;line-height:1.4}
.foot a:hover{text-decoration:underline;color:var(--ink)}
.foot p{margin:.35rem 0;max-width:28rem}
@media (max-width:700px){.foot .cols{grid-template-columns:1fr}}

/* Motion — reveal on scroll; disabled when reduced-motion */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s cubic-bezier(.22,1,.36,1), transform .7s cubic-bezier(.22,1,.36,1)}
.reveal.in{opacity:1;transform:none}
.reveal-delay{transition-delay:.12s}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
  .hero-fullbleed .bg{transform:none}
}

:focus-visible{outline:2px solid #06c;outline-offset:3px}

/* Prose article spacing */
.content h2{margin:2.4rem 0 .8rem;max-width:20ch}
.content h2:first-child{margin-top:0}
.content > p,.content > ul,.content > ol{margin:.7rem 0}
.content .btn{margin-right:.5rem}
code{font-size:.9em;background:var(--wash);padding:.1em .35em;border-radius:4px}

table.compare tbody th{font-weight:600;letter-spacing:-.02em;text-transform:none;font-size:.95rem;color:var(--ink);}

/* Conversion accent — product / buy CTAs only (Fountain: one accent, no rainbow) */
.btn.buy,
a.btn.buy{
  background:var(--accent);color:#fff;border-color:var(--accent);
  min-height:48px;padding:.85rem 1.45rem;font-size:1.05rem;font-weight:600;
  box-shadow:none;
}
.btn.buy:hover,a.btn.buy:hover{background:var(--accent-hover);border-color:var(--accent-hover);color:#fff}
.btn.buy:active,a.btn.buy:active{background:var(--accent-press);border-color:var(--accent-press);transform:translateY(1px)}
.band.black .btn.buy{background:var(--accent);border-color:var(--accent);color:#fff}
.subnav .buy{background:var(--accent);color:#fff}
.subnav .buy:hover{background:var(--accent-hover);color:#fff}
.tile .btn.buy{width:100%;margin-top:.75rem}

.benefits{list-style:none;margin:1.25rem 0 0;padding:0;max-width:36rem}
.benefits li{
  position:relative;padding:.45rem 0 .45rem 1.7rem;color:var(--ink);font-size:1.02rem;
}
.benefits li::before{
  content:"";position:absolute;left:0;top:.7rem;width:.7rem;height:.7rem;
  border-radius:50%;background:var(--ok);
  box-shadow:inset 0 0 0 2px #fff, 0 0 0 1px var(--ok);
  /* green filled circle as benefit mark — not a status dot on chrome */
}
.benefits li::after{
  content:"";position:absolute;left:.22rem;top:.82rem;width:.28rem;height:.45rem;
  border:solid #fff;border-width:0 2px 2px 0;transform:rotate(45deg);
}

.small-kits{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1.5rem 1.75rem;margin:2rem 0 0;padding:0;list-style:none}
.small-kit{display:grid;grid-template-columns:140px 1fr;gap:1.1rem;align-items:center;padding:1.1rem 0;border-bottom:1px solid var(--line)}
.small-kit:last-child{border-bottom:0}
.small-kit .pic{background:var(--wash);border-radius:14px;aspect-ratio:1;display:flex;align-items:center;justify-content:center;overflow:hidden}
.small-kit .pic img{width:100%;height:100%;object-fit:contain;padding:.6rem}
.small-kit h3{font-size:1.15rem;margin:0 0 .25rem;letter-spacing:-.02em;max-width:20ch}
.small-kit .spec{font-size:.85rem;color:var(--muted);font-weight:600;margin:0 0 .35rem}
.small-kit p{margin:0;color:var(--muted);font-size:.92rem;max-width:32rem}
.small-kit .cta-row{display:flex;flex-wrap:wrap;gap:.75rem;align-items:center;margin-top:.85rem}
@media (max-width:700px){
  .small-kits{grid-template-columns:1fr}
  .small-kit{grid-template-columns:100px 1fr}
}
.note-box{margin-top:1.5rem;padding:1.1rem 0 0;border-top:1px solid var(--line);max-width:40rem;color:var(--muted);font-size:.92rem}
.note-box strong{color:var(--ink);font-weight:600}
.amz-disc{font-size:.8rem;color:var(--muted);margin-top:.75rem}