:root{--cream:#f4eee3;--paper:#faf6ef;--ink:#1e1d1b;--char:#2a2826;--mute:#6c655c;--line:#ddd3c3;--copper:#b8743a;--rust:#7a3a2c;--volt:#2be3c8;--volt-ink:#0d7d6e;
--serif:"Fraunces",Georgia,"Times New Roman",serif;--sans:"Manrope",system-ui,-apple-system,"Segoe UI",sans-serif;--mono:"JetBrains Mono",ui-monospace,Menlo,monospace;--r:14px}
*{box-sizing:border-box}html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--cream);color:var(--ink);font:400 17px/1.6 var(--sans);overflow-x:hidden}
img,svg{max-width:100%;display:block}
a{color:inherit}
h1,h2,h3{font-family:var(--serif);font-weight:600;line-height:1.08;letter-spacing:-.01em;margin:0 0 .5em}
h2{font-size:clamp(2rem,4.2vw,3.3rem);max-width:20ch}
h3{font-size:1.3rem}
p{margin:0 0 1em}
.wrap{width:min(1180px,100% - 48px);margin-inline:auto}
.skip{position:absolute;left:-999px;top:8px;background:var(--ink);color:#fff;padding:8px 12px;z-index:100}.skip:focus{left:8px}
:focus-visible{outline:3px solid var(--volt);outline-offset:3px;border-radius:4px}
.proto{position:fixed;right:14px;bottom:14px;z-index:60;font:500 11px/1 var(--mono);letter-spacing:.08em;text-transform:uppercase;background:rgba(30,29,27,.86);color:#f4eee3;padding:8px 11px;border-radius:999px;border:1px solid rgba(43,227,200,.5);backdrop-filter:blur(6px)}
.proto::before{content:"";display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--volt);margin-right:7px;vertical-align:1px}
/* nav */
.nav{position:absolute;top:0;left:0;right:0;z-index:20;display:flex;align-items:center;justify-content:space-between;padding:22px clamp(20px,4vw,48px);color:#fbf5ea}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;font:600 1.35rem/1 var(--serif);letter-spacing:-.01em}
.brand b{font-family:var(--sans);font-weight:700;font-size:.8em;letter-spacing:.06em;margin-left:2px;color:var(--volt)}
.nav nav{display:flex;align-items:center;gap:26px;font-size:.92rem;font-weight:500}
.nav nav a{text-decoration:none;opacity:.88}.nav nav a:hover{opacity:1}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--volt);color:#06221e;font:700 .98rem/1 var(--sans);padding:16px 24px;border-radius:999px;text-decoration:none;border:0;cursor:pointer;transition:transform .15s,box-shadow .15s}
.btn:hover{transform:translateY(-1px);box-shadow:0 8px 24px -8px rgba(43,227,200,.7)}
.btn-sm{padding:10px 16px;font-size:.88rem;opacity:1!important}
.btn-ghost{background:transparent;color:inherit;box-shadow:inset 0 0 0 1.5px currentColor}.btn-ghost:hover{box-shadow:inset 0 0 0 1.5px var(--volt)}
/* hero */
.hero{position:relative;min-height:min(100svh,920px);display:flex;align-items:flex-end;color:#fbf5ea;overflow:hidden;background:#2a2238}
.hero-art{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:70% 50%}
.hero-shade{position:absolute;inset:0;background:linear-gradient(90deg,rgba(20,16,20,.78) 0%,rgba(20,16,20,.45) 38%,rgba(20,16,20,0) 62%),linear-gradient(0deg,rgba(20,16,20,.55),transparent 40%)}
.hero-copy{position:relative;padding:140px 0 72px}
.eyebrow,.kicker{font:500 .78rem/1.3 var(--mono);letter-spacing:.14em;text-transform:uppercase;margin-bottom:18px}
.eyebrow{color:var(--volt)}
.kicker{color:var(--copper)}
.hero h1{font-size:clamp(2.7rem,7vw,5.6rem);font-weight:400;max-width:14ch}
.hero h1 em{font-style:italic;color:#ffd9a0}
.lede{font-size:clamp(1.05rem,1.6vw,1.22rem);max-width:36rem;color:#efe5d6}
.cta-row{display:flex;flex-wrap:wrap;gap:12px;margin:28px 0 18px}
.fine{font-size:.84rem;color:var(--mute)}.hero .fine{color:#cbbfae}.center{text-align:center}
/* sections */
section{scroll-margin-top:20px}
.sec-head{margin-bottom:44px}.sec-head>p:last-child{max-width:44rem;color:var(--mute);font-size:1.08rem}
.how{padding:120px 0 100px}
.diagram{margin:0 0 56px;background:var(--paper);border:1px solid var(--line);border-radius:22px;padding:clamp(14px,3vw,36px)}
.diagram .outline{fill:none;stroke:var(--ink);stroke-width:2.5;stroke-dasharray:2 0}
.diagram .outline.faint{stroke:var(--line);stroke-width:1.5;stroke-dasharray:6 6}
.comp rect{fill:var(--char);stroke:var(--char);stroke-width:2}
.comp.house rect{fill:#efe6d6;stroke:var(--copper)}
.comp.batt rect:first-of-type{fill:url(#hatch);stroke:none}
.comp.batt rect:last-of-type{fill:none;stroke:var(--volt-ink);stroke-width:2.5}
.comp.gen rect{fill:#3a3733}
.bays rect{fill:var(--paper);stroke:#cdbfa8;stroke-width:1.5}.bays path{fill:none;stroke:#cdbfa8;stroke-width:2;stroke-linecap:round}
.comp.solar rect{fill:#1f3a5a;stroke:var(--volt-ink);stroke-width:2}
.comp.axle rect{fill:var(--volt);stroke:var(--volt-ink)}
.wheel circle{fill:var(--ink)}.wheel .hub{fill:#bdb3a3}
.lbl{font:600 15px var(--mono);letter-spacing:.06em;fill:#f4eee3}
.house .lbl,.batt .lbl,.lbl.dark{fill:var(--ink)}
.sub{font:500 13px var(--sans);fill:#cfc6b6}.house .sub,.sub.dark{fill:var(--mute)}
.flow{fill:none;stroke:var(--volt-ink);stroke-width:3.5;stroke-dasharray:8 8;animation:flow 1.2s linear infinite}
.flow.regen{stroke:var(--copper);animation-direction:reverse}
@keyframes flow{to{stroke-dashoffset:-32}}
.tag circle{fill:var(--copper)}.tag text{font:700 15px var(--sans);fill:#fff}
.steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(5,1fr);gap:24px;counter-reset:s}
.steps li{border-top:2px solid var(--ink);padding-top:20px}
.steps .n{display:inline-grid;place-items:center;width:30px;height:30px;border-radius:50%;background:var(--copper);color:#fff;font-weight:700;font-size:.9rem;margin-bottom:14px}
.steps p{color:var(--mute);font-size:.98rem}
.why{background:var(--ink);color:#f1e9dc;padding:110px 0}
.why h2{color:#fbf5ea}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:#3a3733;border:1px solid #3a3733;border-radius:22px;overflow:hidden}
.cards article{background:var(--ink);padding:34px 30px 30px}
.cards svg{width:40px;height:40px;fill:none;stroke:var(--volt);stroke-width:2;stroke-linecap:round;stroke-linejoin:round;margin-bottom:22px}
.cards p{color:#b9b0a2;font-size:.98rem;margin:0}
.coaches{padding:120px 0 90px}
.coach-list{list-style:none;padding:0;margin:0 0 28px;display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:18px}
.coach-list li{position:relative;background:var(--paper);border:1px solid var(--line);border-radius:var(--r);padding:28px}
.coach-list li:first-child{grid-row:span 2;background:linear-gradient(160deg,#2a2826,#1e1d1b);color:#f4eee3;border-color:transparent;display:flex;flex-direction:column;justify-content:flex-end;min-height:260px}
.coach-list li:first-child h3{font-size:2.1rem}.coach-list li:first-child p{color:#cbbfae}
.coach-list li p{color:var(--mute);margin:0;font-size:.97rem}
.coach-list .other{border-style:dashed;background:transparent}
.badge{position:absolute;top:22px;left:28px;font:500 .72rem/1 var(--mono);letter-spacing:.12em;text-transform:uppercase;color:#06221e;background:var(--volt);padding:7px 10px;border-radius:999px}
.disclaimer{font-size:.82rem;color:var(--mute);max-width:56rem}
.process{background:var(--paper);border-block:1px solid var(--line);padding:110px 0}
.timeline{list-style:none;padding:0;margin:0 0 30px;display:grid;grid-template-columns:repeat(5,1fr);gap:0;position:relative}
.timeline::before{content:"";position:absolute;left:0;right:0;top:22px;height:2px;background:linear-gradient(90deg,var(--copper),var(--volt))}
.timeline li{position:relative;padding:0 18px 0 0}
.timeline span{position:relative;display:inline-grid;place-items:center;width:46px;height:46px;border-radius:50%;background:var(--cream);border:2px solid var(--ink);font:500 .85rem var(--mono);margin-bottom:20px}
.timeline li:last-child span{background:var(--volt);border-color:var(--volt-ink)}
.timeline p{color:var(--mute);font-size:.96rem}
.faq{padding:120px 0}
.qa{border-top:1px solid var(--line);max-width:860px}
.qa details{border-bottom:1px solid var(--line)}
.qa summary{list-style:none;cursor:pointer;padding:24px 44px 24px 0;font:600 1.25rem/1.3 var(--serif);position:relative}
.qa summary::-webkit-details-marker{display:none}
.qa summary::after{content:"";position:absolute;right:6px;top:50%;width:14px;height:14px;margin-top:-10px;border-right:2px solid var(--copper);border-bottom:2px solid var(--copper);transform:rotate(45deg);transition:transform .2s}
.qa details[open] summary::after{transform:rotate(225deg);margin-top:-2px}
.qa details p{color:var(--mute);max-width:44rem;padding-bottom:12px}
.signup{background:linear-gradient(135deg,#1e1d1b 0%,#2c2522 60%,#3b2a22 100%);color:#f1e9dc;padding:110px 0}
.signup h2{color:#fbf5ea}.signup p{color:#c8bdac}
.signup-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:64px;align-items:start}
form,.thanks{background:var(--paper);color:var(--ink);border-radius:22px;padding:clamp(22px,3.5vw,40px);box-shadow:0 30px 60px -30px rgba(0,0,0,.6)}
.field{margin-bottom:16px}
label,legend{display:block;font-weight:600;font-size:.9rem;margin-bottom:6px}
label span{font-weight:400;color:var(--mute)}
input:not([type=radio]),textarea{width:100%;font:inherit;font-size:1rem;color:var(--ink);background:#fff;border:1.5px solid var(--line);border-radius:10px;padding:12px 14px}
input:focus,textarea:focus{outline:none;border-color:var(--volt-ink);box-shadow:0 0 0 3px rgba(43,227,200,.3)}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.choice{border:0;padding:0;margin:0 0 16px}.choice label{display:flex;gap:10px;align-items:center;font-weight:500;margin:6px 0}
.choice input{accent-color:var(--volt-ink);width:18px;height:18px}
form .btn{width:100%;margin-top:6px}
form .fine{margin:12px 0 0;text-align:center}
.err{color:#a3341f;font-weight:600;font-size:.92rem}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.thanks h3{font-size:1.8rem}.thanks p{color:var(--mute)!important}
[hidden]{display:none!important}
.foot{background:#151413;color:#a69d90;padding:56px 0 80px;font-size:.92rem}
.foot-grid{display:grid;grid-template-columns:1fr 1.6fr 1fr;gap:40px;align-items:start}
.foot .brand{color:#f4eee3;margin-bottom:10px}.small{font-size:.82rem}
.reveal{opacity:0;transform:translateY(18px);transition:opacity .7s ease,transform .7s ease}.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}.reveal{opacity:1;transform:none}}
@media (max-width:980px){.nav nav a:not(.btn){display:none}.steps{grid-template-columns:1fr 1fr}.cards{grid-template-columns:1fr 1fr}.coach-list{grid-template-columns:1fr 1fr}.coach-list li:first-child{grid-column:span 2;grid-row:auto;min-height:220px}.signup-grid{grid-template-columns:1fr;gap:36px}.foot-grid{grid-template-columns:1fr}
.timeline{grid-template-columns:1fr;gap:6px}.timeline::before{left:22px;right:auto;top:0;bottom:0;width:2px;height:auto;background:linear-gradient(180deg,var(--copper),var(--volt))}.timeline li{display:grid;grid-template-columns:46px 1fr;column-gap:20px;padding:0 0 18px}.timeline li span{grid-row:span 2;margin:0}.timeline h3{margin:10px 0 4px}}
@media (max-width:600px){body{font-size:16px}.wrap{width:calc(100% - 36px)}.how,.coaches,.faq{padding:80px 0}.why,.process,.signup{padding:80px 0}
.steps,.cards,.coach-list,.row2{grid-template-columns:1fr}.coach-list li:first-child{grid-column:auto}
.hero{min-height:auto}.hero-art{object-position:68% 50%}.hero-shade{background:linear-gradient(0deg,rgba(20,16,20,.92) 0%,rgba(20,16,20,.7) 55%,rgba(20,16,20,.25) 100%)}.hero-copy{padding:120px 0 56px}.cta-row .btn{flex:1 1 100%}
.brand span{font-size:1.2rem}.nav{padding:18px}.cards article{padding:28px 22px}.qa summary{font-size:1.1rem}}
.signup .kicker{color:var(--copper)}.signup form p.fine{color:var(--mute)}
@media (max-width:600px){
.hero{flex-direction:column;align-items:stretch;background:#211a20}
.hero-art{position:relative;order:2;height:250px;object-position:74% 80%}
.hero-shade{display:none}
.hero-copy{padding:104px 0 36px}
.diagram{overflow-x:auto;-webkit-overflow-scrolling:touch;padding:14px}
.diagram svg{min-width:760px;max-width:none}
.diagram::after{content:"Swipe to explore the diagram →";display:block;font:500 .72rem var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--mute);margin-top:8px;position:sticky;left:0}
.proto{font-size:10px;padding:7px 9px;right:10px;bottom:10px}}

/* drivetrain options: slide deck (2026-10-23) */
.drivetrain{background:var(--paper);border-block:1px solid var(--line);padding:110px 0}
.dt-legend{list-style:none;padding:0;margin:-20px 0 30px;display:flex;flex-wrap:wrap;gap:10px 24px;font-size:.88rem;color:var(--mute)}
.tag-claim,.tag-indep,.tag-np,.tag-est{display:inline-block;font:500 .66rem/1 var(--mono);letter-spacing:.08em;text-transform:uppercase;padding:4px 7px;border-radius:999px;margin-right:4px;vertical-align:1px;white-space:nowrap}
.tag-claim{background:#f3e2cf;color:#7a4a1f}
.tag-indep{background:rgba(43,227,200,.2);color:var(--volt-ink)}
.tag-np{background:#ebe6dd;color:#5a544c;border:1px dashed #b9b0a2}
.tag-est{background:#e6e3f3;color:#4a3f7a}
.deck{position:relative}
.deck-track{display:grid;gap:22px}
.slide{background:#fff;border:1px solid var(--line);border-radius:22px;padding:clamp(22px,3.4vw,44px);font-size:.95rem;color:var(--char)}
.slide h3{font-size:clamp(1.4rem,2.4vw,2rem);margin:0 0 18px;max-width:44ch}
.slide h4{font:600 .78rem/1.3 var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--volt-ink);margin:0 0 8px}
.slide h4 small{display:block;font-weight:500;color:var(--mute);letter-spacing:.04em;text-transform:none;margin-top:3px;font-family:var(--sans,inherit)}
.slide ul{padding-left:18px;margin:0 0 12px}.slide li{margin:0 0 7px}
.slide p{margin:0 0 12px}
.sl-k{font:500 .72rem/1.3 var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--copper);margin-bottom:10px!important}
.sl-lede{font-size:1.08rem;max-width:62rem}
.sl-small{font-size:.86rem;color:var(--mute)}
.sl-hint{font:500 .72rem var(--mono);letter-spacing:.08em;text-transform:uppercase;opacity:.7;margin-top:8px!important}
.sl-cols2{display:grid;grid-template-columns:1fr 1fr;gap:26px}
.sl-cols3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.sl-cols2.tight{gap:20px}
.sl-cols3>div,.sl-cols2>div{min-width:0}
.sl-split{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);gap:28px;align-items:start}
.sl-photo{margin:0;background:var(--cream);border-radius:var(--r);overflow:hidden;border:1px solid var(--line)}
.sl-photo img{display:block;width:100%;height:auto}
.sl-photo figcaption{font-size:.78rem;color:var(--mute);padding:10px 12px}
.sl-photo a,.sl-src a,.sl-credits a{color:var(--volt-ink);overflow-wrap:anywhere}
.sl-photo-dia{padding:14px 10px 0;background:#fff}
.sl-fig{margin:10px 0 4px}
.dt-dia{width:100%;height:auto;display:block}
.dt-dia .b rect{fill:var(--cream);stroke:#bfb39f;stroke-width:1.4}
.dt-dia .b.volt rect{fill:rgba(43,227,200,.16);stroke:var(--volt-ink)}
.dt-dia .b.batt rect{fill:#f3e2cf;stroke:var(--copper)}
.dt-dia .t{font:600 15px var(--sans,Manrope,sans-serif);fill:var(--ink)}
.dt-dia .s{font:500 12px var(--sans,Manrope,sans-serif);fill:var(--mute)}
.dt-dia .s.d{font-style:italic}
.dt-dia .n{font:500 10px var(--mono);fill:#9a9184;letter-spacing:.06em;text-transform:uppercase}
.dt-dia .ar{stroke:var(--volt-ink);stroke-width:2;fill:none}
.sl-pc{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-bottom:16px}
.sl-pc>div{border-radius:var(--r);padding:16px 18px 6px}
.sl-pc .pro{background:rgba(43,227,200,.09);border:1px solid rgba(13,125,110,.25)}
.sl-pc .con{background:#fbf1e6;border:1px solid #ecd4ba}
.sl-pc .con h4{color:#8a5426}
.sl-facts{border-top:1px solid var(--line);padding-top:14px}
.sl-facts p{margin-bottom:9px}
.sl-spec{border-collapse:collapse;font-size:.86rem;margin:6px 0 12px;width:100%}
.sl-spec th,.sl-spec td{border-bottom:1px solid var(--line);padding:6px 8px;text-align:left;vertical-align:top}
.sl-spec thead th,.sl-spec tbody th{font:600 .7rem/1.3 var(--mono);letter-spacing:.05em;text-transform:uppercase;color:var(--mute)}
.sl-src{font-size:.78rem;color:var(--mute);border-top:1px dashed var(--line);padding-top:10px;margin:16px 0 0!important}
.sl-credits{font-size:.86rem}
.slide.sl-dark{background:var(--ink);color:#e8dfd0;border-color:var(--ink)}
.sl-dark h3{color:#fbf5ea}.sl-dark h4{color:var(--volt)}.sl-dark b{color:#fff}.sl-dark p,.sl-dark li{color:#cfc6b6}
.sl-fig.light{background:#f4eee3;border-radius:10px;padding:8px}
.dt-table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid var(--line);border-radius:var(--r);background:#fff;margin-bottom:12px}
.dt-table{width:100%;border-collapse:collapse;font-size:.85rem;min-width:900px}
.dt-table th,.dt-table td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line);vertical-align:top}
.dt-table thead th{font:600 .68rem/1.3 var(--mono);letter-spacing:.07em;text-transform:uppercase;color:var(--mute);background:var(--cream)}
.dt-table tbody th{font-family:var(--serif);font-weight:600}
.dt-table tbody tr:last-child>*{border-bottom:0}
.dt-table .row-odyne>*{background:rgba(43,227,200,.08)}
/* JS-enhanced deck */
.deck-bar{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px}
.deck-bar[hidden],.deck-dots[hidden]{display:none}
.deck-count{margin:0;font:500 .78rem var(--mono);letter-spacing:.06em;text-transform:uppercase;color:var(--mute);text-align:center;flex:1}
.deck-btn{width:46px;height:46px;border-radius:50%;border:1px solid var(--line);background:#fff;color:var(--ink);font-size:1.2rem;cursor:pointer;flex:none}
.deck-btn:hover:not(:disabled){background:var(--ink);color:#fff}
.deck-btn:disabled{opacity:.35;cursor:default}
.deck-btn:focus-visible,.deck-dots button:focus-visible{outline:2px solid var(--volt-ink);outline-offset:2px}
.deck-dots{list-style:none;padding:0;margin:18px 0 0;display:flex;flex-wrap:wrap;justify-content:center;gap:8px}
.deck-dots button{width:11px;height:11px;border-radius:50%;border:0;padding:0;background:#d2c7b5;cursor:pointer}
.deck-dots button[aria-current="true"]{background:var(--volt-ink);transform:scale(1.25)}
.deck-js .slide{display:none}
.deck-js .slide.is-active{display:block;animation:dtIn .28s ease}
.deck-js .deck-track{display:block}
.deck-js .sl-hint{display:block}
.sl-hint{display:none}
@keyframes dtIn{from{opacity:0;transform:translateX(12px)}to{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){.deck-js .slide.is-active{animation:none}}
@media (max-width:980px){.sl-split,.sl-cols3{grid-template-columns:1fr}.nav nav a.nav-dt{display:inline}}
@media (max-width:700px){.sl-cols2,.sl-pc{grid-template-columns:1fr}}
@media (max-width:600px){.drivetrain{padding:80px 0}.slide{padding:20px 16px;border-radius:16px}.nav nav{gap:14px}.nav nav a.nav-dt{font-size:.82rem}.deck-bar{position:sticky;top:0;z-index:5;background:var(--paper);padding:8px 0;margin-bottom:8px}.deck-btn{width:42px;height:42px}.deck-dots{gap:5px}.deck-dots button{width:9px;height:9px}.dt-table-wrap::after{content:"Swipe the table →";display:block;font:500 .72rem var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--mute);padding:8px 16px;position:sticky;left:0}}