/* Emberline Power — concept build. Direction: "After dark" (near-black, warm amber glow, battery shot like a product). */
:root{
  --bg:#0b0c0e;--panel:#141518;--panel-2:#1b1c20;--ink:#ece8df;--ink-2:#b9b4a8;--mute:#8d887d;--line:rgba(236,232,223,.09);
  --amber:#ffb347;--amber-deep:#ff8a1f;--glow:rgba(255,179,71,.35);
  --f-head:"Fraunces",Georgia,serif;--f-body:"Geist",system-ui,sans-serif;
  --r:30px;--r-in:24px;--maxw:1220px;--gut:clamp(16px,4vw,40px);--ease:cubic-bezier(.32,.72,0,1);
  color-scheme:dark;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:100px}
body{margin:0;background:var(--bg);color:var(--ink);font:400 17px/1.65 var(--f-body);-webkit-font-smoothing:antialiased;overflow-x:hidden}
body::before{content:"";position:fixed;inset:0;pointer-events:none;z-index:0;background:radial-gradient(60% 40% at 80% -10%,rgba(255,179,71,.09),transparent 70%),radial-gradient(40% 30% at 0% 100%,rgba(255,138,31,.05),transparent 70%)}
img{max-width:100%;height:auto;display:block}
a{color:inherit}
p{margin:0}
h1,h2,h3{margin:0;font-family:var(--f-head);font-weight:400;font-optical-sizing:auto;letter-spacing:-.02em;line-height:1.02}
h1 em,h2 em{font-style:italic;color:var(--amber)}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 var(--gut);position:relative;z-index:1}
.skip{position:absolute;left:-999px;top:0;background:var(--amber);color:#000;padding:10px 14px;border-radius:0 0 12px 0;z-index:60}
.skip:focus{left:0}
:focus-visible{outline:2px solid var(--amber);outline-offset:3px;border-radius:8px}
.eyebrow{display:inline-flex;align-items:center;gap:12px;font:500 13px/1 var(--f-head);font-style:italic;letter-spacing:.02em;color:var(--amber)}
.eyebrow::before{content:"";width:28px;height:1px;background:var(--amber);box-shadow:0 0 8px var(--amber)}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:10px;border-radius:14px;padding:8px 18px 8px 22px;min-height:52px;font:600 16px/1 var(--f-body);text-decoration:none;border:0;cursor:pointer;transition:transform .5s var(--ease),box-shadow .5s var(--ease)}
.btn:active{transform:scale(.98)}
.btn .ic{width:20px;height:20px;display:grid;place-items:center;transition:transform .5s var(--ease)}
.btn:hover .ic{transform:translate(2px,-2px) scale(1.05)}
.btn-amber{background:var(--amber);color:#1a1206;box-shadow:0 10px 40px -10px var(--glow)}
.btn-amber:hover{box-shadow:0 14px 50px -8px rgba(255,179,71,.55)}
.btn-amber .ic{color:#1a1206}
.btn-ghost{background:rgba(236,232,223,.06);color:var(--ink);box-shadow:inset 0 0 0 1px var(--line)}

.i{width:18px;height:18px;flex:none}

/* Nav: split — wordmark left, glass pill right */
.nav{position:fixed;left:0;right:0;top:calc(var(--bar,36px) + 12px);z-index:40;transition:transform .6s var(--ease);pointer-events:none}
.nav.up{transform:translateY(calc(-1 * var(--bar,36px)))}
.nav-in{max-width:var(--maxw);margin:0 auto;padding:0 var(--gut);display:flex;align-items:center;gap:16px}
.logo{pointer-events:auto;display:inline-flex;align-items:center;gap:10px;font:500 26px/1 var(--f-head);letter-spacing:-.02em;text-decoration:none;padding:10px 16px 10px 12px;border-radius:999px;background:rgba(11,12,14,.85);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);box-shadow:inset 0 0 0 1px var(--line)}
.ember{width:12px;height:12px;border-radius:50%;background:var(--amber);box-shadow:0 0 0 4px rgba(255,179,71,.15),0 0 18px var(--amber)}
.pill{pointer-events:auto;margin-left:auto;display:flex;align-items:center;gap:4px;padding:6px;border-radius:999px;background:rgba(20,21,24,.66);backdrop-filter:blur(18px) saturate(1.3);-webkit-backdrop-filter:blur(18px) saturate(1.3);box-shadow:inset 0 1px 0 rgba(255,255,255,.06),0 0 0 1px var(--line),0 18px 40px -20px #000}
.pill a.lk{text-decoration:none;font:500 15px/1 var(--f-body);color:var(--ink-2);padding:13px 14px;border-radius:999px;transition:background .4s var(--ease),color .4s var(--ease)}
.pill a.lk:hover,.pill a.lk[aria-current="page"]{background:rgba(236,232,223,.07);color:var(--ink)}
.pill .btn{min-height:44px;padding:5px 14px 5px 18px;font-size:15px;border-radius:999px}
.burger{display:none;width:48px;height:48px;border-radius:50%;border:0;background:var(--amber);cursor:pointer;position:relative}
.burger span{position:absolute;left:15px;right:15px;height:2px;border-radius:2px;background:#1a1206;transition:transform .5s var(--ease)}
.burger span:nth-child(1){top:19px}.burger span:nth-child(2){top:27px}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(4px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){transform:translateY(-4px) rotate(-45deg)}
.menu{position:fixed;inset:0;z-index:35;background:rgba(11,12,14,.9);backdrop-filter:blur(26px);-webkit-backdrop-filter:blur(26px);padding:150px var(--gut) 40px;display:flex;flex-direction:column;gap:4px;opacity:0;visibility:hidden;transition:opacity .5s var(--ease),visibility 0s .5s}
.menu.open{opacity:1;visibility:visible;transition:opacity .5s var(--ease)}
.menu a{font:400 40px/1.15 var(--f-head);text-decoration:none;padding:8px 0;transform:translateY(24px);opacity:0;transition:transform .7s var(--ease),opacity .7s var(--ease)}
.menu.open a{transform:none;opacity:1}
.menu.open a:nth-child(2){transition-delay:.05s}.menu.open a:nth-child(3){transition-delay:.1s}.menu.open a:nth-child(4){transition-delay:.15s}.menu.open a:nth-child(5){transition-delay:.2s}
.menu .btn{margin-top:18px;align-self:flex-start;font:600 17px/1 var(--f-body)}

/* Hero: full-bleed night photo, calculator cascades over its base */
.hero{position:relative;min-height:min(86dvh,820px);display:flex;align-items:flex-end;padding:calc(var(--bar,36px) + 120px) 0 0}
.hero-img{position:absolute;inset:0;z-index:0}
.hero-img img{width:100%;height:100%;object-fit:cover}
.hero-img img{object-position:50% 45%;filter:brightness(1.25) saturate(1.1)}
.hero-img::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,12,14,.45) 0%,rgba(11,12,14,0) 30%,rgba(11,12,14,.35) 60%,rgba(11,12,14,.92) 88%,var(--bg) 100%),linear-gradient(90deg,rgba(11,12,14,.55),transparent 60%)}
.hero > .wrap{width:100%}
.hero-copy{position:relative;z-index:1;max-width:760px;padding-bottom:40px}
.hero h1{font-size:clamp(46px,7vw,104px);margin:20px 0 22px;text-wrap:balance}
.lede{font-size:19px;color:var(--ink-2);max-width:36em}
.hero .lede{color:#d8d3c8}

/* Double bezel */
.shell{padding:7px;border-radius:var(--r);background:rgba(236,232,223,.035);box-shadow:inset 0 0 0 1px var(--line)}
.core{border-radius:var(--r-in);background:var(--panel);box-shadow:inset 0 1px 0 rgba(255,255,255,.05),0 40px 80px -40px #000}

/* Outage calculator */
.calc-wrap{position:relative;z-index:2;margin-top:-10px}
.calc .core{padding:clamp(20px,3vw,34px);display:grid;grid-template-columns:1.25fr .75fr;gap:28px}
.calc h2{font-size:clamp(28px,3vw,38px)}
.calc p.sub{color:var(--mute);margin-top:6px;font-size:15px}
.loads{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin:20px 0 16px;padding:0;border:0}
.load{position:relative}
.loads .load:last-child:nth-child(odd){grid-column:1/-1}
.load input{position:absolute;opacity:0;inset:0;width:100%;height:100%;margin:0;cursor:pointer}
.load > span{display:flex;align-items:center;gap:12px;min-height:56px;padding:12px 16px;border-radius:16px;background:var(--panel-2);box-shadow:inset 0 0 0 1px var(--line);font-size:15px;transition:box-shadow .4s var(--ease),background .4s var(--ease)}
.load > span::before{content:"";flex:none;width:20px;height:20px;border-radius:6px;box-shadow:inset 0 0 0 1.5px var(--mute);transition:all .4s var(--ease)}
.load input:checked + span{background:rgba(255,179,71,.08);box-shadow:inset 0 0 0 1px rgba(255,179,71,.5)}
.load input:checked + span::before{background:var(--amber) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231a1206' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12.5l4.5 4.5L19 7.5'/%3E%3C/svg%3E") center/14px no-repeat;box-shadow:0 0 12px var(--glow)}
.load input:focus-visible + span{outline:2px solid var(--amber);outline-offset:2px}
.load small{display:block;color:var(--mute);font-size:12px}
.stepper{display:flex;align-items:center;gap:10px}
.stepper button{width:48px;height:48px;border-radius:50%;border:0;background:var(--panel-2);color:var(--ink);font:500 22px/1 var(--f-body);cursor:pointer;box-shadow:inset 0 0 0 1px var(--line)}
.stepper output{min-width:120px;text-align:center;font:500 18px/1 var(--f-body)}
.readout{border-radius:22px;background:radial-gradient(120% 90% at 50% 0%,rgba(255,179,71,.16),rgba(255,179,71,0) 70%),var(--panel-2);box-shadow:inset 0 0 0 1px rgba(255,179,71,.18);padding:26px;display:flex;flex-direction:column;gap:10px;justify-content:center}
.readout .label{font:600 12px/1 var(--f-body);letter-spacing:.16em;text-transform:uppercase;color:var(--mute)}
.readout b{font:400 clamp(44px,5vw,64px)/1 var(--f-head);color:var(--amber);text-shadow:0 0 30px var(--glow)}
.readout .avg{color:var(--ink-2);font-size:15px}
.calc-msg{color:#ffb4a1;font-size:15px;min-height:1.5em}
.how{font-size:14px;color:var(--mute);margin-top:8px}
.how summary{cursor:pointer;font-weight:600;color:var(--ink-2);min-height:44px;display:flex;align-items:center}
.how ul{margin:6px 0 0;padding-left:18px}
.how a{color:var(--ink-2)}
.calc .btn{align-self:flex-start;margin-top:6px}

/* Sections */
.sec{padding:clamp(90px,12vw,160px) 0 0;position:relative}
.sec-head{max-width:780px;margin-bottom:48px}
.sec-head h2{font-size:clamp(36px,4.6vw,64px);margin-top:18px;text-wrap:balance}
.sec-head p{margin-top:16px;font-size:18px;color:var(--ink-2)}

/* Stays-on cards: Z-axis cascade */
.tiers{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;align-items:start}
.tier .core{padding:28px;min-height:280px;display:flex;flex-direction:column;gap:12px}
.tier:nth-child(2){transform:translateY(-18px)}
.tier h3{font-size:30px}
.tier p{color:var(--ink-2)}
.tier ul{margin:auto 0 0;padding:0;list-style:none;display:flex;flex-wrap:wrap;gap:8px}
.tier li{font-size:13px;padding:6px 11px;border-radius:999px;background:rgba(236,232,223,.06)}
.tier.hot .core{background:linear-gradient(180deg,#221a10,var(--panel));box-shadow:inset 0 0 0 1px rgba(255,179,71,.28),0 40px 80px -40px #000}

/* Product */
.product{display:grid;grid-template-columns:.9fr 1.1fr;gap:clamp(24px,5vw,72px);align-items:center}
.product .shell{border-radius:36px}
.product .core{overflow:hidden;border-radius:30px}
.product img{width:100%;aspect-ratio:3/4;object-fit:cover}
.spec{display:grid;gap:1px;margin-top:28px;border-radius:20px;overflow:hidden;background:var(--line)}
.spec div{display:grid;grid-template-columns:1fr auto;gap:16px;padding:16px 20px;background:var(--panel)}
.spec dt{color:var(--mute)}
.spec dd{margin:0;font:500 18px/1.3 var(--f-body);text-align:right}

/* Storm band */
.band{position:relative;margin-top:clamp(90px,12vw,160px);min-height:560px;display:flex;align-items:center}
.band img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.85}
.band::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,var(--bg) 0%,rgba(11,12,14,.55) 45%,rgba(11,12,14,0) 100%),linear-gradient(0deg,var(--bg),transparent 25%,transparent 75%,var(--bg))}
.band .wrap{width:100%}
.band-copy{max-width:600px;position:relative;z-index:1}
.band h2{font-size:clamp(36px,4.6vw,62px);margin:18px 0 18px}
.band p{color:var(--ink-2);margin-bottom:12px}
.src{font-size:13px;color:var(--mute)}
.src a{color:var(--mute);display:inline-block;padding:6px 0}

/* Process */
.steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,1fr);gap:16px;counter-reset:s}
.steps{gap:0;border-top:1px solid rgba(255,179,71,.35)}
.steps .shell{padding:0;background:none;box-shadow:none;border-radius:0}
.steps .core{padding:28px 24px 0 0;height:100%;background:none;box-shadow:none;border-radius:0}
.steps li + li .core{padding-left:24px;border-left:1px solid var(--line)}
.steps .n{font:400 44px/1 var(--f-head);color:var(--amber);font-style:italic}
.steps .n::before{counter-increment:s;content:counter(s)}
.steps h3{font-size:24px;margin:24px 0 8px}
.steps p{color:var(--ink-2);font-size:16px}

/* FAQ */
.faq{max-width:880px}
.faq details{border-top:1px solid var(--line)}
.faq details:last-child{border-bottom:1px solid var(--line)}
.faq summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;gap:20px;align-items:center;padding:24px 0;font:400 24px/1.25 var(--f-head);min-height:44px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"";flex:none;width:34px;height:34px;border-radius:50%;background:rgba(255,179,71,.1) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23ffb347' stroke-width='1.6' stroke-linecap='round'%3E%3Cpath d='M12 6v12M6 12h12'/%3E%3C/svg%3E") center/16px no-repeat;transition:transform .5s var(--ease)}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details p{padding:0 0 24px;color:var(--ink-2);max-width:46em}

/* Close */
.close{padding:clamp(90px,12vw,160px) 0 60px}
.close .core{padding:clamp(28px,5vw,64px);display:grid;grid-template-columns:1fr 1fr;gap:40px;background:radial-gradient(80% 120% at 100% 0%,rgba(255,179,71,.18),transparent 60%),var(--panel)}
.close h2{font-size:clamp(36px,4.4vw,58px);margin-top:18px}
.close .lede{margin-top:16px}
.close form{display:grid;gap:12px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.field label{display:block;font:600 13px/1.2 var(--f-body);color:var(--ink-2);margin-bottom:8px}
.field input,.field select{width:100%;font:500 17px/1.2 var(--f-body);color:var(--ink);background:var(--panel-2);border:0;border-radius:14px;padding:15px 16px;min-height:52px;box-shadow:inset 0 0 0 1px var(--line);transition:box-shadow .4s var(--ease)}
.field input:focus,.field select:focus{outline:0;box-shadow:inset 0 0 0 1.5px var(--amber)}
.fine{font-size:13px;color:var(--mute)}

/* Footer */
.foot{padding:30px 0 60px;color:var(--ink-2);font-size:15px;position:relative;z-index:1}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:28px;border-top:1px solid var(--line);padding-top:36px}
.foot a{text-decoration:none;display:block;padding:6px 0;color:var(--ink-2)}
.foot a:hover{color:var(--amber)}
.foot h4{font:600 12px/1 var(--f-body);letter-spacing:.16em;text-transform:uppercase;color:var(--mute);margin:0 0 10px}

/* Inner pages */
.crumbs{font-size:14px;color:var(--ink-2)}
.crumbs a{color:var(--ink-2);display:inline-block;padding:10px 0}
.cmp{width:100%;border-collapse:separate;border-spacing:0;border-radius:20px;overflow:hidden;box-shadow:inset 0 0 0 1px var(--line)}
.cmp th,.cmp td{padding:16px 20px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
.cmp thead th{background:var(--panel-2);font:600 12px/1.2 var(--f-body);letter-spacing:.14em;text-transform:uppercase;color:var(--amber)}
.cmp tbody th{color:var(--mute);font-weight:500;width:28%}
.cmp td{background:var(--panel)}
.cmp tbody th{background:var(--panel)}
.pills{display:flex;flex-wrap:wrap;gap:10px}
.pills span{padding:10px 16px;border-radius:999px;background:var(--panel);box-shadow:inset 0 0 0 1px var(--line);font-size:15px}
.split{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start}
.prose p{color:var(--ink-2);margin-bottom:14px}
.prose h2{font-size:clamp(30px,3.6vw,46px);margin:18px 0 16px}

/* Reveal. Gated on html.js so content shows with JS off */
html.js .rv{opacity:0;transform:translateY(32px);filter:blur(8px);transition:opacity 1s var(--ease),transform 1s var(--ease),filter 1s var(--ease)}
html.js .rv.in{opacity:1;transform:none;filter:none}
html.js .tier.rv.in:nth-child(2){transform:translateY(-18px)}

@media (max-width:1000px){
  .pill a.lk{display:none}
  .steps{grid-template-columns:1fr 1fr}
}
@media (max-width:860px){
  .calc .core,.product,.close .core,.split,.foot-grid{grid-template-columns:1fr}
  .tiers{grid-template-columns:1fr}
  .tier:nth-child(n),html.js .tier.rv.in:nth-child(n){transform:none}
  .hero{min-height:auto;padding-top:calc(var(--bar,36px) + 110px)}
  .hero-img::after{background:linear-gradient(180deg,rgba(11,12,14,.6) 0%,rgba(11,12,14,.35) 40%,rgba(11,12,14,.9) 80%,var(--bg) 100%)}
  .band{min-height:auto;padding:80px 0}
}
@media (max-width:640px){
  .nav-in{background:rgba(11,12,14,.88);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-radius:999px;margin:0 12px;padding:6px}
  .logo{background:none;box-shadow:none;backdrop-filter:none;-webkit-backdrop-filter:none}
  .pill .btn{display:none}
  .burger{display:block}
  .pill{padding:0;background:none;box-shadow:none;backdrop-filter:none;-webkit-backdrop-filter:none}
  .loads{grid-template-columns:1fr}
  .grid2{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .steps li + li .core{padding-left:0;border-left:0;border-top:1px solid var(--line)}
  .steps .core{padding:22px 0}
  .cmp thead{display:none}
  .cmp tr{display:grid}
  .cmp tbody th{width:auto;padding-bottom:4px}
  body{font-size:16px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none!important;animation:none!important}
  html.js .rv{opacity:1;filter:none}
  html.js .rv:not(.tier){transform:none}
  .menu a{transform:none;opacity:1}
}

/* Hero video: sits over the still (same box, no layout shift), fades in once playing */
.hero-video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block}
html.js .hero-video{opacity:0;transition:opacity .6s ease}
html.js .hero-video.on{opacity:1}
.hero-pause{position:absolute;z-index:3;display:none;align-items:center;justify-content:center;width:44px;height:44px;cursor:pointer;border:0;padding:0}
html.js .hero-pause{display:flex}
.hero-pause svg{width:14px;height:14px;fill:currentColor}
.hero-pause .ic-play,.hero-pause.is-paused .ic-pause{display:none}
.hero-pause.is-paused .ic-play{display:block}
.hero-pause:focus-visible{outline:2px solid currentColor;outline-offset:3px}
@media (prefers-reduced-motion:reduce){.hero-video,.hero-pause{display:none!important}}
.hero-img .hero-video{object-position:50% 45%;filter:brightness(1.25) saturate(1.1)}
.hero-pause{right:var(--gut);top:calc(var(--bar,36px) + 84px);border-radius:50%;background:rgba(20,21,24,.7);color:var(--ink);border:1px solid var(--line);backdrop-filter:blur(8px)}
.hero-pause:hover{color:var(--amber);border-color:var(--amber)}