@font-face { font-family: "Figtree"; font-weight: 400; font-display: swap; src: url(fonts/figtree-latin-400-normal.woff2) format("woff2"); }
@font-face { font-family: "Figtree"; font-weight: 500; font-display: swap; src: url(fonts/figtree-latin-500-normal.woff2) format("woff2"); }
@font-face { font-family: "Figtree"; font-weight: 600; font-display: swap; src: url(fonts/figtree-latin-600-normal.woff2) format("woff2"); }
@font-face { font-family: "Figtree"; font-weight: 700; font-display: swap; src: url(fonts/figtree-latin-700-normal.woff2) format("woff2"); }

/* --t runs 0 (midday) to 1 (midnight) and mixes every surface colour. Text uses --tc, a steeper
   curve of the same value, so copy flips quickly at the midpoint instead of fading to grey. */
:root {
  --t: 0;
  --tc: 0;
  --p: calc(var(--t) * 100%);
  --pc: calc(var(--tc) * 100%);
  --bg: color-mix(in oklab, #f3eee6, #0c1222 var(--p));
  --bg-2: color-mix(in oklab, #ebe4d8, #121a2e var(--p));
  --card: color-mix(in oklab, #fffaf2, #161e33 var(--p));
  --ink: color-mix(in oklab, #1c1a16, #eef1f6 var(--pc));
  --ink-2: color-mix(in oklab, #5f584d, #9ba5b8 var(--pc));
  --line: color-mix(in oklab, rgb(28 26 22 / .13), rgb(238 241 246 / .13) var(--p));
  --sky: color-mix(in oklab, #c4d6ea, #071d43 var(--p));
  --amber: #e5a03a;
  --teal: #3fd2bf;
  --accent: color-mix(in oklab, var(--amber), var(--teal) var(--p));
  --accent-ink: color-mix(in oklab, #2a1d06, #04201c var(--pc));
  --glass: color-mix(in oklab, rgb(255 251 244 / .72), rgb(14 22 40 / .6) var(--p));
  --ease: cubic-bezier(.16, 1, .3, 1);
  --pad: clamp(1.25rem, 3.4vw, 3rem);
  --r: 24px;
  color-scheme: light;
}
:root.is-night { color-scheme: dark; }

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; background: var(--bg); }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body { margin: 0; font-family: "Figtree", system-ui, sans-serif; font-size: 1.0625rem; line-height: 1.55; color: var(--ink); background: var(--bg); overflow-x: hidden; }
img { display: block; max-width: 100%; }
a { color: inherit; }
h1, h2, h3 { margin: 0; font-weight: 700; letter-spacing: -.025em; line-height: 1.04; text-wrap: balance; }
p { margin: 0; }
.skip { position: absolute; left: -999px; top: 1rem; z-index: 50; background: var(--ink); color: var(--bg); padding: .6rem 1rem; border-radius: 999px; }
.skip:focus { left: 1rem; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

.btn { display: inline-flex; align-items: center; justify-content: center; border: 0; border-radius: 12px; padding: .9rem 1.35rem; font: 600 .9375rem/1 "Figtree", sans-serif; text-decoration: none; cursor: pointer; transition: transform 220ms var(--ease), filter 220ms; }
.btn:hover { transform: translateY(-1px); filter: brightness(1.06); }
.btn--sm { padding: .68rem 1.05rem; font-size: .875rem; border-radius: 10px; }
.btn--ink { background: var(--ink); color: var(--bg); }
.btn--accent { background: var(--accent); color: var(--accent-ink); }

/* Nav */
.nav { position: absolute; inset: 0 0 auto 0; z-index: 10; display: flex; align-items: center; justify-content: space-between; gap: 2rem; padding: 1.15rem var(--pad); }
.nav__mark { display: inline-flex; align-items: center; gap: .5rem; text-decoration: none; font-weight: 700; font-size: 1.3rem; letter-spacing: -.03em; }
.nav__mark svg { width: 1.7rem; height: 1.7rem; }
.m-house { fill: none; stroke: currentColor; stroke-width: 2.2; stroke-linejoin: round; }
.m-sun { fill: var(--accent); }
.nav__links { display: flex; gap: 2rem; list-style: none; margin: 0; padding: 0; }
.nav__links a { text-decoration: none; font-size: .9063rem; font-weight: 500; color: var(--ink-2); transition: color 200ms; }
.nav__links a:hover { color: var(--ink); }

/* Hero */
.hero { position: relative; height: 100svh; min-height: 640px; display: grid; grid-template-rows: auto 1fr auto; justify-items: center; padding: 5.4rem var(--pad) 2.5rem; overflow: hidden; isolation: isolate; text-align: center; }
.hero__media { position: absolute; inset: 0; z-index: -1; background: var(--sky); }
.still { position: absolute; inset: 0; transition: opacity 900ms var(--ease); }
.still img { position: absolute; bottom: 0; left: 50%; width: max(100%, 117svh); max-width: none; height: auto; transform: translate(-47%, 4%); }
@media (min-aspect-ratio: 13/10) { .still img { transform: translate(-47%, 14%); } }
.still img { -webkit-mask-image: linear-gradient(180deg, transparent 0, #000 22%); mask-image: linear-gradient(180deg, transparent 0, #000 22%); }
.still--night { opacity: var(--t); }
.hero__film { position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0; transition: opacity 700ms var(--ease); }
.hero__film.is-on { opacity: 1; }
.hero__sky { position: absolute; inset: 0; background: linear-gradient(180deg, var(--sky) 0, color-mix(in oklab, var(--sky), transparent 25%) 14%, color-mix(in oklab, var(--sky), transparent 100%) 36%); }
.hero__fog { position: absolute; left: 0; right: 0; bottom: 0; height: 42%; background: linear-gradient(0deg, var(--bg) 4%, color-mix(in oklab, var(--bg), transparent 30%) 38%, color-mix(in oklab, var(--bg), transparent 100%) 100%); overflow: hidden; }
.hero__fog span { position: absolute; left: -25%; width: 150%; height: 70%; bottom: 8%; border-radius: 50%; background: radial-gradient(closest-side, color-mix(in oklab, var(--bg), transparent 35%), transparent); filter: blur(18px); animation: drift 26s ease-in-out infinite alternate; }
.hero__fog span:last-child { bottom: -12%; left: -40%; animation-duration: 34s; animation-direction: alternate-reverse; opacity: .8; }
@keyframes drift { from { transform: translateX(-6%); } to { transform: translateX(8%); } }

.hero__copy h1 { font-size: clamp(2.6rem, 5vw, 4.6rem); line-height: 1.02; letter-spacing: -.035em; }
.hero__copy h1 span { display: block; }
.hero__copy .h-2 { color: color-mix(in oklab, var(--ink), var(--sky) 42%); }

.hero__control { grid-row: 3; display: grid; justify-items: center; gap: 1.1rem; max-width: 40rem; }
.toggle { position: relative; display: grid; grid-template-columns: 1fr 1fr; padding: .3rem; border-radius: 14px; background: var(--glass); border: 1px solid var(--line); -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px); box-shadow: 0 18px 40px -22px rgb(0 0 0 / .45); }
.toggle button { position: relative; z-index: 1; display: grid; gap: .1rem; min-width: 9.5rem; padding: .7rem 1.4rem; border: 0; border-radius: 10px; background: transparent; color: var(--ink-2); font-family: inherit; cursor: pointer; transition: color 300ms; }
.toggle button strong { font-size: 1rem; font-weight: 700; color: var(--ink); }
.toggle button small { font-size: .75rem; }
.toggle button[aria-checked="true"] small { color: var(--accent-ink); }
.toggle button[aria-checked="true"] strong { color: var(--accent-ink); }
.toggle__thumb { position: absolute; top: .3rem; bottom: .3rem; left: .3rem; width: calc(50% - .3rem); border-radius: 10px; background: var(--accent); transform: translateX(calc(var(--t) * 100%)); box-shadow: 0 6px 16px -6px color-mix(in oklab, var(--accent), transparent 30%); }
.hero__lede { font-size: 1rem; color: var(--ink); max-width: 52ch; }

/* Energy flow */
.flow { position: absolute; right: var(--pad); bottom: 2.5rem; width: 300px; padding: 1rem 1rem .9rem; border-radius: 20px; background: var(--glass); border: 1px solid var(--line); -webkit-backdrop-filter: blur(16px); backdrop-filter: blur(16px); text-align: left; box-shadow: 0 24px 50px -28px rgb(0 0 0 / .5); }
.flow__head { display: flex; justify-content: space-between; align-items: center; gap: .5rem; font-size: .8125rem; font-weight: 600; margin-bottom: .2rem; }
.flow__tag { font-size: .6875rem; font-weight: 500; color: var(--ink-2); border: 1px solid var(--line); border-radius: 999px; padding: .12rem .5rem; }
.flow__svg { width: 100%; height: auto; display: block; overflow: visible; }
.wire { fill: none; stroke: var(--line); stroke-width: 2; }
.wire.is-live { stroke: var(--accent); stroke-dasharray: 3 7; stroke-linecap: round; animation: flowing 900ms linear infinite; }
@keyframes flowing { to { stroke-dashoffset: -10; } }
.node circle { fill: var(--card); stroke: var(--line); stroke-width: 1.5; }
.node--hub circle { stroke: var(--accent); }
.node .ico { fill: none; stroke: var(--ink); stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }
.node text, .val { font: 500 10.5px "Figtree", sans-serif; fill: var(--ink-2); text-anchor: middle; }
.val { font-weight: 600; fill: var(--ink); transition: opacity 400ms; }
.val.is-off { opacity: 0; }
.batt-fill { fill: var(--accent); transform-box: fill-box; transform-origin: bottom; }
.flow__soc { font-size: .8125rem; color: var(--ink-2); margin-top: .35rem; }
.flow__soc strong { color: var(--ink); font-weight: 700; }

/* Estimator */
.estimate { display: grid; grid-template-columns: .8fr 1.2fr; gap: clamp(2rem, 5vw, 5rem); padding: clamp(4.5rem, 10vw, 8rem) var(--pad) clamp(3rem, 6vw, 5rem); align-items: start; }
.estimate__intro h2 { font-size: clamp(2.2rem, 4.4vw, 3.8rem); margin-bottom: 1.1rem; }
.estimate__intro p { color: var(--ink-2); max-width: 42ch; }
.estimate__card { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem 2.5rem; padding: clamp(1.4rem, 3vw, 2.2rem); border-radius: var(--r); background: var(--card); border: 1px solid var(--line); }
.sliders { display: grid; gap: 1.6rem; align-content: start; }
.slider { display: grid; gap: .6rem; }
.slider__top { display: flex; justify-content: space-between; font-size: .9375rem; color: var(--ink-2); }
.slider output { font-weight: 700; color: var(--ink); }
input[type="range"] { appearance: none; width: 100%; height: 6px; border-radius: 6px; background: linear-gradient(90deg, var(--accent) var(--fill, 50%), var(--line) var(--fill, 50%)); cursor: pointer; }
input[type="range"]::-webkit-slider-thumb { appearance: none; width: 22px; height: 22px; border-radius: 50%; background: var(--card); border: 2px solid var(--accent); box-shadow: 0 2px 8px rgb(0 0 0 / .2); }
input[type="range"]::-moz-range-thumb { width: 20px; height: 20px; border-radius: 50%; background: var(--card); border: 2px solid var(--accent); }
.seg { border: 0; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: .35rem; }
.seg legend { font-size: .9375rem; color: var(--ink-2); margin-bottom: .6rem; padding: 0; }
.seg label { position: relative; }
.seg input { position: absolute; opacity: 0; inset: 0; cursor: pointer; }
.seg span { display: block; text-align: center; padding: .6rem .2rem; border-radius: 10px; border: 1px solid var(--line); font-size: .875rem; font-weight: 600; transition: background-color 200ms, color 200ms; }
.seg input:checked + span { background: var(--ink); color: var(--bg); border-color: var(--ink); }
.seg input:focus-visible + span { outline: 2px solid var(--accent); outline-offset: 2px; }
.results { margin: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 1.1rem 1.5rem; align-content: start; }
.results div { border-top: 1px solid var(--line); padding-top: .7rem; }
.results dt { font-size: .8125rem; color: var(--ink-2); }
.results dd { margin: .15rem 0 0; font-size: 1.35rem; font-weight: 700; letter-spacing: -.02em; font-variant-numeric: tabular-nums; }
.results__big { grid-column: 1 / -1; border-top: 0 !important; padding-top: 0 !important; }
.results__big dd { font-size: clamp(2.6rem, 5vw, 3.6rem); color: var(--ink); line-height: 1; }
.results__big dd::after { content: ""; display: block; width: 3rem; height: 4px; border-radius: 4px; background: var(--accent); margin-top: .7rem; }
.estimate__note { grid-column: 1 / -1; font-size: .8125rem; color: var(--ink-2); border-top: 1px solid var(--line); padding-top: 1rem; }

/* Install */
.install { padding: clamp(3rem, 7vw, 6rem) var(--pad); }
.install h2 { font-size: clamp(2.1rem, 4.2vw, 3.6rem); max-width: 18ch; margin-bottom: clamp(2rem, 4vw, 3rem); }
.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.25rem; position: relative; }
.steps::before { content: ""; position: absolute; top: 1.6rem; left: 1.6rem; right: 1.6rem; height: 2px; background: repeating-linear-gradient(90deg, var(--line) 0 6px, transparent 6px 12px); z-index: -1; }
.steps li { display: grid; gap: .6rem; align-content: start; }
.steps svg { width: 3.2rem; height: 3.2rem; padding: .75rem; border-radius: 50%; background: var(--card); border: 1px solid var(--line); fill: none; stroke: var(--ink); stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; margin-bottom: .4rem; }
.steps h3 { font-size: 1.2rem; letter-spacing: -.015em; }
.steps p { font-size: .9688rem; color: var(--ink-2); }

/* Kit */
.kit { padding: clamp(3rem, 7vw, 6rem) var(--pad); }
.kit__head { display: flex; justify-content: space-between; align-items: end; gap: 2rem; margin-bottom: clamp(1.5rem, 3vw, 2.5rem); }
.kit__head h2 { font-size: clamp(2.1rem, 4.2vw, 3.6rem); }
.kit__head p { color: var(--ink-2); max-width: 40ch; }
.kit__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; }
.card { padding: 1.4rem; border-radius: var(--r); background: var(--card); border: 1px solid var(--line); display: grid; gap: .65rem; align-content: start; transition: transform 400ms var(--ease); }
.card:hover { transform: translateY(-4px); }
.card h3 { font-size: 1.35rem; }
.card > p { color: var(--ink-2); font-size: .9688rem; }
.card__art { height: 9rem; border-radius: 16px; background: var(--bg-2); margin-bottom: .5rem; position: relative; overflow: hidden; }
.card__art--panel { display: grid; grid-template-columns: repeat(4, 1fr); gap: 4px; padding: 1.4rem 1.6rem; transform: perspective(600px) rotateX(28deg); }
.card__art--panel i { border-radius: 3px; background: linear-gradient(135deg, #1d2433, #0e121b 60%, #2a3550); box-shadow: inset 0 0 0 1px rgb(255 255 255 / .08); }
.card__art--batt { display: grid; place-items: center; }
.card__art--batt::before { content: ""; width: 4.6rem; height: 6.8rem; border-radius: 10px; background: var(--card); border: 1px solid var(--line); box-shadow: 0 10px 24px -14px rgb(0 0 0 / .5); }
.card__art--batt b { position: absolute; left: 50%; top: 50%; width: .9rem; height: .2rem; border-radius: 2px; background: var(--teal); box-shadow: 0 0 10px var(--teal); transform: translate(-50%, -1.8rem); }
.card__art--hub svg { position: absolute; inset: 10% 6%; width: 88%; height: 80%; fill: none; stroke: var(--accent); stroke-width: 2.5; stroke-linecap: round; stroke-dasharray: 200; stroke-dashoffset: 200; transition: stroke-dashoffset 1600ms var(--ease); }
.card.is-in .card__art--hub svg, :not(.js-motion) .card__art--hub svg { stroke-dashoffset: 0; }
.specs { list-style: none; margin: .4rem 0 0; padding: 0; display: grid; }
.specs li { display: flex; justify-content: space-between; gap: 1rem; padding: .55rem 0; border-top: 1px solid var(--line); font-size: .9063rem; font-weight: 600; }
.specs span { color: var(--ink-2); font-weight: 400; }

/* FAQ */
.faq { display: grid; grid-template-columns: 1fr 1.3fr; gap: 2rem clamp(2rem, 6vw, 5rem); padding: clamp(3rem, 7vw, 6rem) var(--pad); }
.faq h2 { font-size: clamp(2.1rem, 4.2vw, 3.6rem); margin-bottom: 1.1rem; }
.faq__finance > p { color: var(--ink-2); max-width: 44ch; }
.faq__example { margin-top: 1.2rem; padding: 1rem 1.1rem; border-radius: 16px; background: var(--card); border: 1px solid var(--line); font-size: .9063rem; }
.faq__example strong { color: var(--ink); }
.faq__list details { border-bottom: 1px solid var(--line); }
.faq__list details:first-child { border-top: 1px solid var(--line); }
.faq__list summary { list-style: none; cursor: pointer; padding: 1.15rem 2.5rem 1.15rem 0; position: relative; font-size: 1.1rem; font-weight: 600; }
.faq__list summary::-webkit-details-marker { display: none; }
.faq__list summary::after { content: "+"; position: absolute; right: .2rem; top: 50%; transform: translateY(-50%); font-size: 1.5rem; font-weight: 400; color: var(--ink-2); transition: transform 300ms var(--ease); }
.faq__list details[open] summary::after { transform: translateY(-50%) rotate(45deg); }
.faq__list p { padding: 0 2.5rem 1.3rem 0; color: var(--ink-2); max-width: 60ch; }

/* Quote */
.quote { margin: clamp(2rem, 5vw, 4rem) var(--pad) clamp(4rem, 8vw, 6rem); padding: clamp(2rem, 5vw, 4rem); border-radius: 28px; background: var(--ink); color: var(--bg); display: grid; gap: 2rem; }
.quote h2 { font-size: clamp(2rem, 4.4vw, 3.8rem); max-width: 16ch; }
.qform { display: grid; grid-template-columns: 1fr 1.3fr 1fr auto; gap: .75rem; align-items: end; }
.qform label { display: grid; gap: .35rem; font-size: .8125rem; color: color-mix(in oklab, var(--bg), transparent 30%); }
.qform input, .qform select { font: 500 1rem "Figtree", sans-serif; padding: .85rem 1rem; border-radius: 12px; border: 1px solid color-mix(in oklab, var(--bg), transparent 75%); background: color-mix(in oklab, var(--bg), transparent 92%); color: var(--bg); min-width: 0; }
.qform input::placeholder { color: color-mix(in oklab, var(--bg), transparent 55%); }
.qform select option { color: #1c1a16; }
.qform .btn { padding: 1rem 1.4rem; }
.qform input.is-bad { border-color: var(--accent); }
.qform__note { grid-column: 1 / -1; font-size: .8125rem; color: color-mix(in oklab, var(--bg), transparent 35%); }

/* Footer + credit */
.foot { display: flex; justify-content: space-between; align-items: flex-end; gap: 2rem; padding: 2.5rem var(--pad) calc(2.5rem + 8dvh); border-top: 1px solid var(--line); }
.foot__brand { font-size: 1.4rem; font-weight: 700; letter-spacing: -.03em; }
.foot__credit { color: var(--ink-2); font-size: .875rem; max-width: 62ch; }
.credit { position: fixed; right: 1rem; bottom: 1rem; z-index: 20; display: inline-flex; align-items: center; gap: .5rem; padding: .55rem .9rem; border-radius: 999px; background: rgb(20 22 30 / .84); color: #eef0f4; font-size: .8125rem; text-decoration: none; -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px); transition: background-color 180ms var(--ease); }
.credit svg { width: .85rem; height: .85rem; }
.credit:hover { background: #2a3550; }

/* Entrances */
.js-motion [data-reveal] { opacity: 0; transform: translateY(28px); transition: opacity 950ms var(--ease), transform 950ms var(--ease); }
.js-motion [data-reveal].is-in { opacity: 1; transform: none; }
.js-motion .hero__copy, .js-motion .hero__control, .js-motion .flow { opacity: 0; transform: translateY(24px); transition: opacity 1000ms var(--ease), transform 1000ms var(--ease); }
.js-motion.is-loaded .hero__copy, .js-motion.is-loaded .hero__control, .js-motion.is-loaded .flow { opacity: 1; transform: none; }
.js-motion.is-loaded .hero__control { transition-delay: 150ms; }
.js-motion.is-loaded .flow { transition-delay: 350ms; }

@media (max-width: 1180px) {
  .flow { position: relative; right: auto; bottom: auto; grid-row: 4; margin-top: 1.5rem; display: none; }
}
@media (max-width: 1000px) {
  .nav__links { display: none; }
  .estimate, .faq { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr 1fr; row-gap: 2rem; }
  .steps::before { display: none; }
  .qform { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 767px) {
  .nav { padding: 1rem 1.25rem; }
  .hero { padding: 5.6rem 1.25rem 1.75rem; min-height: 620px; }
  .still img { width: max(100%, 130svh); }
  .hero { padding-bottom: calc(8dvh + 3.25rem); }
  .hero__copy h1 { font-size: clamp(2.3rem, 10.5vw, 3rem); }
  .toggle button { min-width: 0; padding: .65rem .9rem; }
  .hero__lede { font-size: .9375rem; }
  .estimate__card { grid-template-columns: 1fr; }
  .kit__grid { grid-template-columns: 1fr; }
  .kit__head { flex-direction: column; align-items: flex-start; }
  .steps { grid-template-columns: 1fr; }
  .qform { grid-template-columns: 1fr; }
  .quote { margin-left: 1rem; margin-right: 1rem; }
  .foot { flex-direction: column; align-items: flex-start; padding-bottom: calc(8dvh + 4rem); }
  .credit { left: 1rem; right: auto; }
}
/* Flow card shown below the hero on narrower screens */
.flow-band { display: none; }
@media (max-width: 1180px) {
  .flow-band { display: block; padding: 1.5rem var(--pad) 0; }
  .flow-band .flow { display: block; position: static; width: min(100%, 420px); margin: 0 auto; }
}