:root {
  /* Night-road world: deep dusk blue, sodium-lamp amber as the single accent. Layout: one strong hero lamp, then quiet ruled sections like a spec sheet. */
  --night: #0b1226;
  --dusk: #142046;
  --line: #2a3766;
  --ink: #e9ecf6;
  --muted: #9aa5c7;
  --sodium: #ffb547;
  --sodium-deep: #e08a12;
  --ok: #7fd1a3;
  --display: "Big Shoulders Display", "Arial Narrow", Impact, sans-serif;
  --body: "Public Sans", "Segoe UI", Arial, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, Menlo, monospace;
  color-scheme: dark;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--night); color: var(--ink); font: 400 17px/1.6 var(--body); }
img, svg { max-width: 100%; }
a { color: var(--sodium); }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 3px solid var(--sodium); outline-offset: 2px;
}
.wrap { width: min(1120px, 100% - 40px); margin-inline: auto; }
h1, h2, h3 { font-family: var(--display); line-height: 1; margin: 0; text-wrap: balance; letter-spacing: .01em; }
h2 { font-size: clamp(36px, 5vw, 56px); font-weight: 900; text-transform: uppercase; }
h3 { font-size: 26px; font-weight: 700; text-transform: uppercase; }
p { margin: 0; }
.eyebrow { font: 500 13px/1 var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--sodium); }

/* Header */
header.top { position: sticky; top: 0; z-index: 10; background: color-mix(in srgb, var(--night) 88%, transparent); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
header.top .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 14px 0; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); }
.brand b { font: 900 24px/1 var(--display); letter-spacing: .04em; }
.brand span { font: 400 12px/1.2 var(--mono); color: var(--muted); }
nav { display: flex; gap: 22px; align-items: center; flex-wrap: wrap; }
nav a { color: var(--muted); text-decoration: none; font-size: 15px; }
nav a:hover { color: var(--ink); }
.btn { display: inline-flex; align-items: center; gap: 8px; background: var(--sodium); color: #1a1205; font: 700 16px/1 var(--body); padding: 14px 20px; border-radius: 4px; border: 0; text-decoration: none; cursor: pointer; }
.btn:hover { background: #ffc66d; }
.btn.ghost { background: transparent; color: var(--ink); border: 1px solid var(--line); }
.btn.ghost:hover { border-color: var(--sodium); }
nav .btn { padding: 10px 16px; font-size: 15px; color: #1a1205; }

/* Hero */
.hero { position: relative; overflow: hidden; background: radial-gradient(120% 90% at 78% 10%, var(--dusk) 0%, var(--night) 60%); border-bottom: 1px solid var(--line); }
.hero .wrap { display: grid; grid-template-columns: 1.15fr .85fr; gap: 32px; align-items: end; padding: 72px 0 0; }
.hero h1 { font-size: clamp(54px, 8.4vw, 112px); font-weight: 900; text-transform: uppercase; line-height: .9; }
.hero h1 em { font-style: normal; color: var(--sodium); }
.hero .lede { margin-top: 24px; max-width: 34em; color: var(--muted); font-size: 19px; }
.hero .ctas { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 32px; }
.hero .copy { padding-bottom: 72px; }
.readout { margin-top: 40px; display: grid; grid-template-columns: repeat(3, auto); gap: 8px 28px; justify-content: start; font-family: var(--mono); font-size: 13px; color: var(--muted); }
.readout strong { display: block; font: 700 30px/1 var(--display); color: var(--ink); letter-spacing: .02em; }
.lamp { align-self: stretch; display: flex; align-items: flex-end; justify-content: center; }
.lamp svg { width: 100%; max-width: 420px; height: auto; display: block; }
.glow { animation: on 2.4s ease-out both; transform-origin: 50% 0; }
@keyframes on { 0% { opacity: .55; } 12% { opacity: .2; } 22% { opacity: .9; } 30% { opacity: .5; } 100% { opacity: 1; } }
@media (prefers-reduced-motion: reduce) { .glow { animation: none; } html { scroll-behavior: auto; } }

section { padding: 88px 0; border-bottom: 1px solid var(--line); }
.sec-head { display: grid; grid-template-columns: 1fr 1fr; gap: 24px 48px; align-items: end; margin-bottom: 48px; }
.sec-head p { color: var(--muted); max-width: 34em; }
.sec-head .eyebrow { display: block; margin-bottom: 14px; }

/* Who it's for */
.uses { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.use { padding: 28px 26px 30px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); display: grid; gap: 10px; align-content: start; }
.use .n { font: 500 12px/1 var(--mono); color: var(--sodium); letter-spacing: .1em; }
.use p { color: var(--muted); font-size: 16px; }

/* Products */
.models { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
.model { border: 1px solid var(--line); border-radius: 6px; background: linear-gradient(180deg, var(--dusk), var(--night)); padding: 30px; display: grid; gap: 20px; align-content: start; }
.model.feature { border-color: var(--sodium-deep); }
.model .top { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; flex-wrap: wrap; }
.model .watt { font: 900 72px/.9 var(--display); color: var(--sodium); }
.model .watt small { font-size: 28px; }
.model .code { font: 500 13px/1 var(--mono); color: var(--muted); }
.model .fit { color: var(--muted); font-size: 16px; }
table.spec { width: 100%; border-collapse: collapse; font-size: 15px; }
table.spec th, table.spec td { text-align: left; padding: 9px 0; border-top: 1px solid var(--line); vertical-align: top; }
table.spec th { color: var(--muted); font-weight: 400; width: 44%; padding-right: 16px; }
table.spec td { font-family: var(--mono); font-size: 14px; font-variant-numeric: tabular-nums; }
.note { color: var(--muted); font-size: 14px; margin-top: 20px; }
.custom { margin-top: 28px; border: 1px dashed var(--sodium-deep); border-radius: 6px; padding: 28px 30px; display: flex; gap: 24px 40px; align-items: center; justify-content: space-between; flex-wrap: wrap; }
.custom > div { max-width: 46em; }
.custom p { color: var(--muted); margin-top: 10px; }

/* Proof */
.proof { display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: start; }
.certs { display: grid; gap: 0; border-top: 1px solid var(--line); }
.cert { display: grid; grid-template-columns: 190px 1fr; gap: 16px; padding: 18px 0; border-bottom: 1px solid var(--line); }
.cert code { font: 500 14px/1.4 var(--mono); color: var(--sodium); }
.cert p { color: var(--muted); font-size: 15px; }
.why { display: grid; gap: 22px; }
.why div { border-left: 3px solid var(--sodium); padding-left: 18px; }
.why b { display: block; font: 700 22px/1.1 var(--display); text-transform: uppercase; margin-bottom: 6px; }
.why p { color: var(--muted); font-size: 16px; }

/* Steps */
ol.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(5, 1fr); gap: 0; counter-reset: s; border-top: 2px solid var(--sodium); }
ol.steps li { counter-increment: s; padding: 22px 20px 0 0; display: grid; gap: 8px; align-content: start; }
ol.steps li::before { content: counter(s, decimal-leading-zero); font: 900 40px/1 var(--display); color: var(--sodium); }
ol.steps b { font-size: 16px; }
ol.steps p { color: var(--muted); font-size: 15px; }

/* Quote */
.quote { display: grid; grid-template-columns: .8fr 1.2fr; gap: 48px; align-items: start; }
.contact { display: grid; gap: 18px; }
.contact div { border-top: 1px solid var(--line); padding-top: 14px; }
.contact span { display: block; font: 500 12px/1 var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--muted); margin-bottom: 6px; }
.contact strong { font-size: 18px; }
.contact strong a { color: var(--ink); text-decoration: none; border-bottom: 1px solid var(--line); }
.contact strong a:hover { border-color: var(--sodium); }
.contact .links { margin-top: 6px; font-size: 14px; color: var(--muted); }
form { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; background: var(--dusk); border: 1px solid var(--line); border-radius: 6px; padding: 28px; }
form .full { grid-column: 1 / -1; }
label { display: grid; gap: 6px; font-size: 14px; color: var(--muted); }
input, select, textarea { font: 400 16px/1.4 var(--body); color: var(--ink); background: var(--night); border: 1px solid var(--line); border-radius: 4px; padding: 11px 12px; width: 100%; }
textarea { min-height: 96px; resize: vertical; }
label.check { display: flex; gap: 10px; align-items: center; color: var(--ink); font-size: 15px; cursor: pointer; }
label.check input { width: 20px; height: 20px; accent-color: var(--sodium); margin: 0; }
.customfs { border: 1px dashed var(--sodium-deep); border-radius: 6px; padding: 18px 18px 20px; margin: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.customfs legend { padding: 0 8px; font: 700 18px/1.2 var(--display); text-transform: uppercase; color: var(--sodium); }
.customfs legend span { display: block; font: 400 13px/1.4 var(--body); text-transform: none; color: var(--muted); margin-top: 4px; }
.customfs .full { grid-column: 1 / -1; }
input[type="file"] { padding: 8px; }
.hint { font-size: 12px; color: var(--muted); }
.incl { display: grid; gap: 8px; align-content: start; }
.plabel { font-size: 14px; color: var(--muted); }

.out { grid-column: 1 / -1; display: none; gap: 12px; }
.out.show { display: grid; }
.ok { color: var(--ok); font-weight: 600; margin: 0; }
.formerr { color: #ff9b8a; margin: 0; font-size: 14px; }
.ok[hidden] { display: none; }
.out pre { margin: 0; white-space: pre-wrap; font: 400 14px/1.5 var(--mono); background: var(--night); border: 1px solid var(--line); border-radius: 4px; padding: 14px; color: var(--ink); }
.out .row { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.out .msg { color: var(--ok); font-size: 14px; }

footer { padding: 36px 0 48px; color: var(--muted); font-size: 14px; }
footer .wrap { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }

@media (max-width: 900px) {
  .hero .wrap, .sec-head, .models, .proof, .quote { grid-template-columns: 1fr; }
  .hero .copy { padding-bottom: 0; }
  .lamp svg { max-width: 300px; }
  .uses { grid-template-columns: 1fr 1fr; }
  ol.steps { grid-template-columns: 1fr 1fr; gap: 0 20px; }
  header.top { position: static; }
  header.top .wrap { flex-wrap: wrap; row-gap: 10px; padding: 12px 0 10px; }
  nav { width: 100%; display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
  nav a { text-align: center; justify-content: center; padding: 9px 10px; border: 1px solid var(--line); border-radius: 4px; font-size: 14px; white-space: nowrap; }
  nav a[aria-current="page"] { border-color: var(--sodium); padding-bottom: 8px; }
  nav .btn { padding: 8px 12px; font-size: 14px; border: 0; }
}
@media (max-width: 560px) {
  body { font-size: 16px; }
  .uses { grid-template-columns: 1fr; }
  ol.steps { grid-template-columns: 1fr; }
  form, .customfs { grid-template-columns: 1fr; padding: 20px; }
  .cert { grid-template-columns: 1fr; gap: 6px; }
  .readout { grid-template-columns: repeat(2, auto); }
  section { padding: 64px 0; }
}

nav a[aria-current="page"] { color: var(--ink); border-bottom: 2px solid var(--sodium); padding-bottom: 2px; }
.band { padding: 64px 0; border-bottom: 1px solid var(--line); background: linear-gradient(90deg, var(--dusk), var(--night)); }
.band .wrap { display: flex; justify-content: space-between; align-items: center; gap: 20px 40px; flex-wrap: wrap; }
.band h2 { font-size: clamp(30px, 4vw, 44px); }
.band p { color: var(--muted); margin-top: 10px; max-width: 40em; }
.band .ctas { display: flex; gap: 12px; flex-wrap: wrap; }
.next { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; border-top: 1px solid var(--line); border-left: 1px solid var(--line); margin-top: 0; }
.next a { display: grid; gap: 8px; padding: 26px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); text-decoration: none; color: var(--ink); }
.next a:hover { background: var(--dusk); }
.next a b { font: 700 24px/1.1 var(--display); text-transform: uppercase; }
.next a span { color: var(--muted); font-size: 15px; }
.next a em { font-style: normal; color: var(--sodium); font-size: 14px; }
@media (max-width: 900px) { .next { grid-template-columns: 1fr; } }