/* NemoFleet site. Left-aligned 12-col grid, floor-plan texture, thermal ramp used only as gradients. */
:root {
  --bg: #EEF0F2; --surface: #FFFFFF; --surface-2: #E3E7EB; --line: #C8CED6;
  --ink: #12171C; --ink-2: #46505B; --ink-3: #78828E;
  --s1: #3F7D1E; --s15: #0E8579; --s2: #6A3FD0;
  --ok: #2E8A4A; --warn: #B58A00; --crit: #C4303A;
  --cold: #3A6EA5; --heat: #D9622B;
  --img-op: .09; --img-blend: multiply; --img-filter: none;
  --f-display: "Barlow Semi Condensed", "Barlow", "Helvetica Neue", Arial, sans-serif;
  --f-body: "Barlow", "Helvetica Neue", Arial, sans-serif;
  --f-mono: "JetBrains Mono", "SF Mono", Menlo, Consolas, monospace;
}
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) {
  --bg: #0C0F12; --surface: #141920; --surface-2: #1B2128; --line: #2A323B;
  --ink: #E5E9ED; --ink-2: #A1ACB8; --ink-3: #687583;
  --s1: #79BC4A; --s15: #2BC0AE; --s2: #9C7FF2; --ok: #4CC273; --warn: #E2B93B; --crit: #F0626B;
  --cold: #5B95D1; --heat: #F08A4B; --img-op: .12; --img-blend: screen; --img-filter: invert(1); color-scheme: dark; } }
:root[data-theme="dark"] {
  --bg: #0C0F12; --surface: #141920; --surface-2: #1B2128; --line: #2A323B;
  --ink: #E5E9ED; --ink-2: #A1ACB8; --ink-3: #687583;
  --s1: #79BC4A; --s15: #2BC0AE; --s2: #9C7FF2; --ok: #4CC273; --warn: #E2B93B; --crit: #F0626B;
  --cold: #5B95D1; --heat: #F08A4B; --img-op: .12; --img-blend: screen; --img-filter: invert(1); color-scheme: dark; }

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font-family: var(--f-body); font-size: 17px; line-height: 1.6; }
img, video { max-width: 100%; display: block; }
a { color: inherit; }
:focus-visible { outline: 2px solid var(--s15); outline-offset: 3px; }
.mono { font-family: var(--f-mono); }
.eyebrow { font-family: var(--f-mono); font-size: 12px; font-weight: 500; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-3); }
h1, h2, h3 { margin: 0; text-wrap: balance; }
.display { font-family: var(--f-display); font-weight: 600; font-size: clamp(40px, 6vw, 60px); line-height: 1.04; letter-spacing: -.015em; }
h2 { font-family: var(--f-display); font-weight: 600; font-size: clamp(28px, 3.4vw, 40px); line-height: 1.1; }
h3 { font-family: var(--f-body); font-weight: 600; font-size: 20px; line-height: 1.3; }
p { margin: 0; max-width: 68ch; }
.lead { font-size: 19px; color: var(--ink-2); }
.small { font-size: 14px; color: var(--ink-2); }

.wrap { max-width: 1240px; margin: 0 auto; padding-inline: 24px; }
@media (max-width: 600px) { .wrap { padding-inline: 16px; } }

/* floor-plan grid texture */
.grid-tex { background-image:
  linear-gradient(to right, color-mix(in srgb, var(--ink) 8%, transparent) 1px, transparent 1px),
  linear-gradient(to bottom, color-mix(in srgb, var(--ink) 8%, transparent) 1px, transparent 1px),
  linear-gradient(to right, color-mix(in srgb, var(--ink) 4%, transparent) .5px, transparent .5px),
  linear-gradient(to bottom, color-mix(in srgb, var(--ink) 4%, transparent) .5px, transparent .5px);
  background-size: 96px 96px, 96px 96px, 24px 24px, 24px 24px; }

/* wordmark */
.wordmark { display: inline-grid; gap: 3px; text-decoration: none; font-family: var(--f-display); font-size: 24px; line-height: 1; letter-spacing: -.01em; color: var(--ink); }
.wordmark b { font-weight: 600; } .wordmark span { font-weight: 400; }
.wordmark i { display: block; height: 1.5px; background: linear-gradient(90deg, var(--cold), var(--heat)); }
.wordmark i + i { background: linear-gradient(90deg, var(--heat), var(--cold)); }
.lanes { height: 7px; position: relative; }
.lanes::before, .lanes::after { content: ""; position: absolute; left: 0; right: 0; height: 1.5px; }
.lanes::before { top: 0; background: linear-gradient(90deg, var(--cold), var(--heat)); }
.lanes::after { bottom: 0; background: linear-gradient(90deg, var(--heat), var(--cold)); }

/* nav */
.nav { position: sticky; top: env(safe-area-inset-top, 0px); z-index: 10; background: color-mix(in srgb, var(--bg) 92%, transparent); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
.nav .wrap { display: flex; align-items: center; gap: 12px 28px; padding-block: 14px; flex-wrap: wrap; }
.nav ul { list-style: none; display: flex; gap: 4px 20px; margin: 0; padding: 0; flex-wrap: wrap; font-size: 15px; }
.nav ul a { text-decoration: none; color: var(--ink-2); font-weight: 500; }
.nav ul a:hover, .nav ul a[aria-current="page"] { color: var(--ink); }
.nav .gh { margin-left: auto; font-family: var(--f-mono); font-size: 13px; text-decoration: none; color: var(--ink-2); border: 1px solid var(--line); padding: 5px 10px; border-radius: 2px; }

/* buttons */
.cta { display: flex; gap: 12px; flex-wrap: wrap; }
.btn { display: inline-block; text-decoration: none; font-weight: 600; font-size: 16px; padding: 11px 18px; border-radius: 2px; border: 1px solid var(--ink); }
.btn.primary { background: var(--ink); color: var(--bg); }
.btn.ghost { color: var(--ink); }
.btn:hover { opacity: .88; }

/* sections */
section.band { padding-block: 72px; border-top: 1px solid var(--line); position: relative; }
section.band > .wrap { display: grid; gap: 28px; }
section.band > .wrap > *, .prose > *, .prose li { min-width: 0; }
.sec-head { display: grid; gap: 10px; max-width: 760px; }

/* hero */
.hero { position: relative; overflow: hidden; padding-block: 88px 72px; }
.hero .wrap { position: relative; display: grid; gap: 22px; }
.hero h1 { max-width: 15ch; }
.hero .lead { max-width: 58ch; }
.overlay-img { position: absolute; inset: 0; background-repeat: no-repeat; pointer-events: none; opacity: var(--img-op); mix-blend-mode: var(--img-blend); filter: var(--img-filter); }
.hero .overlay-img { background-image: url(img/rete-plate.jpg); background-size: cover; background-position: right center;
  -webkit-mask-image: linear-gradient(90deg, transparent 0%, #000 55%); mask-image: linear-gradient(90deg, transparent 0%, #000 55%); }

/* tier strip */
.tiers { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border: 1px solid var(--line); background: var(--surface); }
.tier { padding: 20px 22px; display: grid; gap: 8px; border-left: 1px solid var(--line); align-content: start; }
.tier:first-child { border-left: 0; }
.tier .k { font-family: var(--f-mono); font-size: 12px; letter-spacing: .08em; font-weight: 600; }
.tier.t1 .k { color: var(--s1); } .tier.t15 .k { color: var(--s15); } .tier.t2 .k { color: var(--s2); }
.tier dl { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 4px 14px; margin: 4px 0 0; font-size: 14.5px; }
.tier dt { color: var(--ink-3); font-family: var(--f-mono); font-size: 12px; text-transform: uppercase; letter-spacing: .06em; padding-top: 3px; }
.tier dd { margin: 0; font-variant-numeric: tabular-nums; }
@media (max-width: 860px) { .tiers { grid-template-columns: minmax(0, 1fr); } .tier { border-left: 0; border-top: 1px solid var(--line); } .tier:first-child { border-top: 0; } }

/* figure with canvas */
.fig { display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr); gap: 32px; align-items: start; }
.fig figure { margin: 0; border: 1px solid var(--line); background: var(--surface); }
.fig canvas { display: block; width: 100%; height: auto; }
.fig figcaption { border-top: 1px solid var(--line); padding: 10px 14px; font-size: 14.5px; color: var(--ink-2); display: grid; gap: 4px; }
.fig .side { display: grid; gap: 16px; align-content: start; }
.fig ul { margin: 0; padding-left: 18px; display: grid; gap: 6px; color: var(--ink-2); }
.tag { font-family: var(--f-mono); font-size: 11.5px; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-3); }
@media (max-width: 900px) { .fig { grid-template-columns: minmax(0, 1fr); } }

/* night shift */
.ns { position: relative; overflow: hidden; }
.ns .overlay-img { background-image: url(img/thermograph.jpg); background-size: 520px auto; background-position: right top; opacity: .1; filter: saturate(.4);
  -webkit-mask-image: radial-gradient(circle at 85% 10%, #000 0%, transparent 60%); mask-image: radial-gradient(circle at 85% 10%, #000 0%, transparent 60%); }
.pipeline { position: relative; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border: 1px solid var(--line); background: var(--surface); }
.stage { padding: 18px 20px; display: grid; gap: 6px; border-left: 1px solid var(--line); align-content: start; }
.stage:first-child { border-left: 0; }
.stage .n { font-family: var(--f-mono); font-size: 12px; color: var(--s2); letter-spacing: .08em; font-weight: 600; }
.stage .svc { font-family: var(--f-mono); font-size: 12.5px; color: var(--ink-3); }
@media (max-width: 900px) { .pipeline { grid-template-columns: repeat(2, minmax(0, 1fr)); } .stage:nth-child(3) { border-left: 0; } .stage:nth-child(n+3) { border-top: 1px solid var(--line); } }
@media (max-width: 520px) { .pipeline { grid-template-columns: minmax(0, 1fr); } .stage { border-left: 0; border-top: 1px solid var(--line); } .stage:first-child { border-top: 0; } }

/* tables */
.tbl { overflow-x: auto; border: 1px solid var(--line); background: var(--surface); }
table { width: 100%; border-collapse: collapse; font-size: 15px; min-width: 620px; }
th { text-align: left; font-family: var(--f-mono); font-size: 11.5px; letter-spacing: .07em; text-transform: uppercase; color: var(--ink-3); font-weight: 500; padding: 10px 14px; border-bottom: 1px solid var(--line); }
td { padding: 10px 14px; border-bottom: 1px solid var(--line); vertical-align: top; }
tr:last-child td { border-bottom: 0; }
.chip { display: inline-block; width: 9px; height: 9px; border-radius: 2px; margin-right: 8px; vertical-align: 0; }

/* invariants */
.inv { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 0; border: 1px solid var(--line); background: var(--surface); }
.inv div { padding: 18px 20px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); display: grid; gap: 6px; }
.inv b { font-family: var(--f-display); font-size: 20px; font-weight: 600; }

/* prose pages */
.prose { max-width: 820px; display: grid; gap: 14px; }
.prose h1 { font-family: var(--f-display); font-weight: 600; font-size: clamp(34px, 5vw, 48px); line-height: 1.08; }
.prose h2 { margin-top: 18px; }
.prose h3 { margin-top: 8px; }
.prose ul, .prose ol { margin: 0; padding-left: 22px; display: grid; gap: 4px; }
.prose code { font-family: var(--f-mono); font-size: .86em; background: var(--surface-2); padding: 1px 5px; border-radius: 2px; }
.prose table { min-width: 0; }
.prose .tbl table { min-width: 560px; }

/* video + docs */
.video { border: 1px solid var(--line); background: #000; }
.docs { display: grid; gap: 0; border: 1px solid var(--line); background: var(--surface); }
.doc { display: grid; grid-template-columns: 120px minmax(0, 1fr) auto; gap: 16px; padding: 16px 20px; border-top: 1px solid var(--line); align-items: baseline; text-decoration: none; }
.doc:first-child { border-top: 0; }
.doc:hover { background: var(--surface-2); }
.doc .tag { color: var(--s15); }
.doc b { font-weight: 600; display: block; }
.doc span.small { display: block; }
@media (max-width: 600px) { .doc { grid-template-columns: minmax(0, 1fr); gap: 4px; } }

/* footer */
footer.foot { position: relative; overflow: hidden; border-top: 1px solid var(--line); padding-block: 48px; }
footer.foot .overlay-img { background-image: url(img/vessel-band.jpg); background-size: cover; background-position: center; --img-op: .1; mix-blend-mode: screen; filter: none;
  -webkit-mask-image: linear-gradient(180deg, transparent 0%, #000 30%, #000 70%, transparent 100%); mask-image: linear-gradient(180deg, transparent 0%, #000 30%, #000 70%, transparent 100%); }
:root:not([data-theme="dark"]) footer.foot .overlay-img { mix-blend-mode: multiply; filter: invert(1); }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) footer.foot .overlay-img { mix-blend-mode: screen; filter: none; } }
footer.foot .wrap { position: relative; display: grid; gap: 14px; }

@media (prefers-reduced-motion: reduce) { * { scroll-behavior: auto !important; } }