/* MSEC 50K main-design page. Builds on the shared theme.css tokens; copper accent.
   All interaction state (road/camp, drive option, spec tabs) is CSS radio state so it
   works without JavaScript under the site's strict CSP. */

body.kit { --accent: #e39a62; --accent-2: #f4c690; --accent-ink: #1b0d03; --accent-soft: rgba(227, 154, 98, .13); --glow: rgba(227, 154, 98, .34); }
[data-theme="light"] body.kit { --accent: #9c4f17; --accent-2: #b8691f; --accent-ink: #ffffff; --accent-soft: rgba(156, 79, 23, .1); --glow: rgba(156, 79, 23, .22); }
.kit .k-dark {
  color-scheme: dark;
  --bg: #07090b; --bg-raised: #0b0f12; --surface: #10161a; --surface-2: #151d22; --surface-3: #1c262c;
  --line: rgba(214, 232, 238, .085); --line-strong: rgba(214, 232, 238, .17);
  --text: #eef3f5; --text-2: #b9c5ca; --muted: #84939a;
  --accent: #e39a62; --accent-2: #f4c690; --accent-ink: #1b0d03; --accent-soft: rgba(227, 154, 98, .13);
  background: radial-gradient(80% 50% at 50% 0%, rgba(227, 154, 98, .07), transparent 70%), #07090b; color: var(--text);
}
.kit .k-dark + .band, .kit .band + .k-dark { border-top: 0; }
.kit img { height: auto; }

/* Hero */
.k-hero { position: relative; min-height: calc(100svh - 64px); min-height: max(620px, calc(100svh - 64px)); display: flex; flex-direction: column; justify-content: space-between; color: #fff; overflow: hidden; background: #0c0a08; isolation: isolate; }
.kit .k-hero-media { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: 50% 62%; z-index: -2; }
.k-hero::before { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(180deg, rgba(6, 8, 10, .66) 0%, rgba(6, 8, 10, .12) 30%, rgba(6, 8, 10, 0) 50%, rgba(6, 8, 10, .35) 70%, rgba(6, 8, 10, .82) 100%); }
.k-hero-top { text-align: center; padding: clamp(28px, 5.5vh, 64px) var(--gutter) 0; }
.k-kicker { margin: 0 0 14px; font: 500 12px/1.3 var(--font-mono); letter-spacing: .2em; text-transform: uppercase; color: #f4c690; }
.k-hero h1 { margin: 0; font-size: clamp(34px, 4.6vw, 70px); line-height: 1; letter-spacing: -.045em; font-weight: 640; text-shadow: 0 2px 30px rgba(0, 0, 0, .3); }
.k-hero-sub { grid-column: 1 / -1; max-width: 560px; margin: 0; font-size: clamp(15px, 1.4vw, 18px); line-height: 1.5; color: rgba(255, 255, 255, .88); }
.k-hero-bottom { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: end; gap: 24px 40px; padding: 0 var(--gutter) clamp(28px, 5vh, 52px); max-width: calc(var(--page) + var(--gutter) * 2); width: 100%; margin: 0 auto; }
.k-hero-stats { display: flex; flex-wrap: wrap; gap: 18px 48px; margin: 0; }
.k-hero-stats div { display: flex; flex-direction: column-reverse; }
.k-hero-stats dt { margin-top: 6px; font-size: 13px; color: rgba(255, 255, 255, .72); }
.k-hero-stats dd { margin: 0; font-size: clamp(28px, 3.2vw, 42px); line-height: 1; letter-spacing: -.035em; font-weight: 560; font-variant-numeric: tabular-nums; }
.k-hero-stats small { font-size: .5em; margin: 0 .2em; color: rgba(255, 255, 255, .7); letter-spacing: 0; }
.k-hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.k-hero .btn { min-width: 168px; justify-content: center; }
.k-btn-light { background: rgba(255, 255, 255, .92); color: #101418; box-shadow: none; }
.k-btn-light:hover { background: #fff; }
.k-tag { grid-column: 1 / -1; margin: 0; font: 500 10px/1 var(--font-mono); letter-spacing: .16em; text-transform: uppercase; color: rgba(255, 255, 255, .6); }
@media (max-width: 760px) {
  .k-hero::before { background: linear-gradient(180deg, rgba(6, 8, 10, .66) 0%, rgba(6, 8, 10, .1) 28%, rgba(6, 8, 10, .25) 45%, rgba(6, 8, 10, .86) 62%, rgba(6, 8, 10, .92) 100%); }
  .k-hero-bottom { grid-template-columns: 1fr; }
  .k-hero-stats { gap: 16px 28px; }
  .k-hero-actions .btn { flex: 1 1 140px; }
  /* Phones: the whole hero render shows between the title and the stats instead of being cropped behind them. */
  .k-hero { min-height: 0; justify-content: flex-start; }
  .k-hero::before { display: none; }
  .kit .k-hero-media { position: static; order: 1; z-index: 0; width: 100%; height: auto; object-fit: contain; margin: 18px 0 4px; }
  .k-hero-top { order: 0; }
  .k-hero-bottom { order: 2; padding-top: 18px; }
}

/* Section sub-navigation */
.k-subnav { position: sticky; top: 64px; z-index: 40; background: var(--header-bg); -webkit-backdrop-filter: saturate(160%) blur(18px); backdrop-filter: saturate(160%) blur(18px); border-bottom: 1px solid var(--line); }
.k-subnav .wrap { display: flex; align-items: center; gap: 24px; height: 54px; }
.k-subnav-name { font-weight: 640; letter-spacing: -.02em; white-space: nowrap; }
.k-subnav-links { display: flex; gap: 22px; overflow-x: auto; scrollbar-width: none; margin-left: auto; mask-image: linear-gradient(90deg, transparent, #000 16px, #000 calc(100% - 16px), transparent); padding: 0 16px; }
.k-subnav-links::-webkit-scrollbar { display: none; }
.k-subnav-links a { font-size: 14px; color: var(--text-2); text-decoration: none; white-space: nowrap; padding: 6px 0; border-bottom: 2px solid transparent; }
.k-subnav-links a:hover { color: var(--text); }
.k-subnav-links a.is-active { color: var(--text); border-bottom-color: var(--accent); }
html:has(.k-subnav) { scroll-padding-top: 130px; }
@media (max-width: 760px) { .k-subnav-name, .k-subnav .btn { display: none; } .k-subnav-links { margin-left: 0; } }

/* Overview */
.k-specstrip { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); margin: 0 0 clamp(40px, 6vw, 72px); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.k-specstrip div { display: flex; flex-direction: column-reverse; padding: 26px 22px 26px 0; }
.k-specstrip div + div { padding-left: 22px; border-left: 1px solid var(--line); }
.k-specstrip dt { margin-top: 8px; font-size: 14px; color: var(--muted); }
.k-specstrip dd { margin: 0; font-size: clamp(30px, 3.4vw, 46px); line-height: 1; letter-spacing: -.04em; font-weight: 600; font-variant-numeric: tabular-nums; }
.k-specstrip small { font-size: .4em; margin-left: 6px; color: var(--muted); letter-spacing: 0; font-weight: 500; }
@media (max-width: 860px) { .k-specstrip { grid-template-columns: repeat(2, minmax(0, 1fr)); } .k-specstrip div:nth-child(3) { padding-left: 0; border-left: 0; } .k-specstrip div:nth-child(n+3) { border-top: 1px solid var(--line); } }
.k-studio, .k-feature { margin: 0; }
.k-studio img, .k-feature img, .k-stage img { width: 100%; border-radius: var(--r-xl); }
.k-studio figcaption, .k-feature figcaption, .k-card figcaption { margin-top: 14px; font-size: 14px; color: var(--muted); }

/* Radio-driven controls */
.k-radio { position: absolute; opacity: 0; width: 1px; height: 1px; pointer-events: none; }
.k-switch { display: inline-flex; gap: 4px; padding: 4px; margin: 0 0 26px; border-radius: 999px; background: var(--surface-2); border: 1px solid var(--line); }
.k-switch label { display: flex; flex-direction: column; align-items: center; gap: 2px; min-width: 132px; padding: 10px 22px; border-radius: 999px; cursor: pointer; color: var(--text-2); transition: background .25s var(--ease), color .25s var(--ease); }
.k-switch label b { font-weight: 600; font-size: 15px; }
.k-switch label span { font: 500 11px/1.2 var(--font-mono); letter-spacing: .04em; color: var(--muted); }
.k-switch label:hover { color: var(--text); }
.k-switch.small label { min-width: 110px; padding: 8px 16px; }
.k-switch.tabs { flex-wrap: wrap; border-radius: var(--r-lg); }
.k-switch.tabs label { min-width: 0; padding: 10px 18px; }
#mode-road:checked ~ .wrap label[for="mode-road"], #mode-camp:checked ~ .wrap label[for="mode-camp"],
#drive-mech:checked ~ .wrap label[for="drive-mech"], #drive-elec:checked ~ .wrap label[for="drive-elec"],
#spec-dim:checked ~ .wrap label[for="spec-dim"], #spec-chassis:checked ~ .wrap label[for="spec-chassis"],
#spec-body:checked ~ .wrap label[for="spec-body"], #spec-power:checked ~ .wrap label[for="spec-power"] { background: var(--text); color: var(--bg); }
#mode-road:checked ~ .wrap label[for="mode-road"] span, #mode-camp:checked ~ .wrap label[for="mode-camp"] span,
#drive-mech:checked ~ .wrap label[for="drive-mech"] span, #drive-elec:checked ~ .wrap label[for="drive-elec"] span { color: inherit; opacity: .7; }
#mode-road:focus-visible ~ .wrap label[for="mode-road"], #mode-camp:focus-visible ~ .wrap label[for="mode-camp"],
#drive-mech:focus-visible ~ .wrap label[for="drive-mech"], #drive-elec:focus-visible ~ .wrap label[for="drive-elec"],
#spec-dim:focus-visible ~ .wrap label[for="spec-dim"], #spec-chassis:focus-visible ~ .wrap label[for="spec-chassis"],
#spec-body:focus-visible ~ .wrap label[for="spec-body"], #spec-power:focus-visible ~ .wrap label[for="spec-power"] { outline: 2px solid var(--accent); outline-offset: 2px; }

/* Expand */
.k-stage { display: grid; }
.k-stage > figure { grid-area: 1 / 1; margin: 0; transition: opacity .6s var(--ease), transform .6s var(--ease); }
.k-stage-camp { opacity: 0; transform: scale(.985); }
#mode-camp:checked ~ .wrap .k-stage-camp { opacity: 1; transform: none; }
#mode-camp:checked ~ .wrap .k-stage-road { opacity: 0; }
.k-elevation { margin: clamp(28px, 4vw, 48px) 0 0; padding: clamp(18px, 3vw, 34px); border-radius: var(--r-xl); border: 1px solid var(--line); background: var(--surface); }
.k-elevation svg { width: 100%; height: auto; overflow: visible; }
.k-elevation figcaption { margin-top: 12px; font-size: 14px; color: var(--muted); }
.e-ground { stroke: var(--line-strong); stroke-width: .6; }
.e-body, .e-band { fill: var(--surface-3); stroke: var(--text-2); stroke-width: .6; }
.e-band { fill: var(--surface-2); }
.e-fairing { fill: none; stroke: var(--accent); stroke-width: .8; }
.e-seam { stroke: var(--muted); stroke-width: .35; stroke-dasharray: 2 2; }
.e-floor { stroke: var(--accent); stroke-width: .5; stroke-dasharray: 3 2; }
.e-wheels circle { fill: #20262a; stroke: var(--text-2); stroke-width: .5; }
.e-wheels .e-hub { fill: var(--surface-3); }
.e-dim { stroke: var(--accent); stroke-width: .45; }
.e-dim.thin { stroke-width: .35; stroke-dasharray: 1.5 1.5; }
.e-label { fill: var(--text); font: 600 6px var(--font-sans); }
.e-note { fill: var(--muted); font: 500 4.6px var(--font-mono); letter-spacing: .02em; }
.e-hatch { stroke: var(--line-strong); }
.e-stringer { fill: #4a3426; stroke: var(--accent); stroke-width: .5; }
.e-note.e-on { fill: #f3e2d3; }
.e-ring { fill: var(--surface-2); stroke: var(--text-2); stroke-width: .7; stroke-linejoin: round; }
.e-tire { fill: #20262a; stroke: var(--text-2); stroke-width: .5; }
.e-tub { fill: var(--surface-3); }
.e-housing { fill: none; stroke: var(--muted); stroke-width: .4; stroke-dasharray: 2 1.5; }
.e-bay { fill: rgba(196, 120, 74, .16); stroke: var(--accent); stroke-width: .45; stroke-dasharray: 2 1.5; }
.e-pane { fill: rgba(143, 184, 201, .5); stroke: var(--text-2); stroke-width: .3; }
.e-pane.blind { fill: var(--surface-2); stroke-dasharray: 1.5 1; }
.e-glass { fill: none; stroke: #8fb8c9; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.e-glass.blind { stroke: var(--muted); stroke-width: 1; stroke-dasharray: 2 1.5; }
.e-person { fill: none; stroke: var(--text); stroke-width: 1.1; stroke-linecap: round; }
.k-plan-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.k-plan-scroll svg { display: block; min-width: 640px; max-width: 1100px; margin: 0 auto; }
.k-plan .e-note { font-size: 9px; }
.k-plan .e-label { font-size: 11px; }
.k-plan-trio, .k-plan-duo { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px 18px; }
.k-plan-duo { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.k-plan-trio svg, .k-plan-duo svg { display: block; width: 100%; height: auto; overflow: hidden; }
.k-plan-duo > div { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.k-plan-set .e-note { font-size: 12.5px; }
.k-plan-set .e-label { font-size: 15px; }
@media (max-width: 900px) {
  .k-plan-trio { grid-template-columns: 1fr; }
  .k-plan-trio svg { max-width: 480px; margin: 0 auto; }
  .k-plan-duo { grid-template-columns: 1fr; }
  .k-plan-duo svg { min-width: 520px; }
}
.e-walk { fill: rgba(90, 167, 232, .16); }
.e-walk.strong { fill: rgba(90, 167, 232, .30); stroke: #5aa7e8; stroke-width: .8; }
.e-hblock { fill: var(--surface-3); stroke: var(--text-2); stroke-width: .6; }
.e-bay.solid { fill: rgba(196, 120, 74, .38); stroke: var(--accent); stroke-dasharray: none; stroke-width: .7; }
.e-arrow { stroke: var(--text); stroke-width: 1.1; }
.k-plan .e-big { fill: var(--text); font: 700 15px var(--font-sans); }
.e-furn { fill: var(--surface-3); stroke: var(--text-2); stroke-width: .6; }
.e-fold { fill: none; stroke: var(--accent); stroke-width: .9; stroke-dasharray: 4 3; }
.e-fold.faint { opacity: .4; }
.e-fold.bed { stroke: #8fb8c9; stroke-dasharray: 1.5 2.5; stroke-width: 1.1; }
.e-fold-label { fill: #8fb8c9; }
.e-bed { fill: rgba(143, 184, 201, .22); stroke: #8fb8c9; stroke-width: .9; }
.e-raised { fill: none; stroke: #8fb8c9; stroke-width: .8; stroke-dasharray: 5 3; }
.e-ceil { stroke: #5aa7e8; stroke-width: .9; }
.e-ceil.raised { stroke-dasharray: 5 3; }
.k-plan-mode { margin: 18px 0 6px; font-size: 14px; color: var(--muted); }
.k-plan-mode:first-child { margin-top: 0; }
.k-plan-mode b { color: var(--text); font-weight: 600; }
.e-bay.light { fill: rgba(196, 120, 74, .08); }
.e-lp { fill: rgba(217, 83, 79, .30); stroke: #d9534f; stroke-width: .7; }
.e-water { fill: rgba(90, 167, 232, .22); stroke: #5aa7e8; stroke-width: .6; stroke-dasharray: 2 1.2; }
.e-crash { fill: rgba(230, 190, 90, .28); stroke: #d9a93a; stroke-width: .6; }
.e-lock { fill: none; stroke: #d9a93a; stroke-width: .7; stroke-dasharray: 2 1.5; }
.e-wall { stroke: var(--text-2); stroke-width: 1; }
.e-door { stroke: var(--accent); stroke-width: 3.2; stroke-linecap: round; }
.e-win { stroke: #8fb8c9; stroke-width: 3.2; stroke-linecap: round; }
.e-win.blind { stroke: var(--muted); stroke-width: 2; stroke-dasharray: 3 2; }
.e-on-plan { fill: var(--text); }
.k-facts-wide { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 440px), 1fr)); column-gap: clamp(24px, 4vw, 56px); }
.k-facts-wide div:nth-child(2) { border-top: 1px solid var(--line); }
.k-section svg { display: block; max-width: 680px; margin: 0 auto; }
.e-camp, .e-road { transition: opacity .5s var(--ease); }
.e-camp { opacity: .16; }
.e-camp text, .e-camp .e-dim { opacity: 0; transition: opacity .5s var(--ease); }
#mode-camp:checked ~ .wrap .e-camp { opacity: 1; }
#mode-camp:checked ~ .wrap .e-camp text, #mode-camp:checked ~ .wrap .e-camp .e-dim { opacity: 1; }
#mode-camp:checked ~ .wrap .e-road { opacity: 0; }
.e-wheels { transition: opacity .5s var(--ease); }
#mode-camp:checked ~ .wrap .e-wheels { opacity: .18; }
.k-subhead { margin-top: clamp(56px, 8vw, 104px); }
.k-subhead .headline { font-size: clamp(28px, 3.4vw, 44px); }
.k-steps { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px; margin: clamp(36px, 5vw, 64px) 0 0; padding: 0; list-style: none; }
.k-steps img, .k-step img { width: 100%; aspect-ratio: 3 / 2; object-fit: cover; border-radius: var(--r-md); }
.k-steps b, .k-step b { display: flex; align-items: center; gap: 10px; margin: 16px 0 6px; font-weight: 620; letter-spacing: -.01em; }
.k-steps b span, .k-step b span { display: inline-grid; place-items: center; width: 26px; height: 26px; border-radius: 50%; border: 1px solid var(--accent); color: var(--accent); font: 600 12px/1 var(--font-mono); }
.k-steps p, .k-step p { margin: 0; font-size: 15px; color: var(--text-2); }
@media (max-width: 980px) { .k-steps { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
.k-steps.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
@media (max-width: 640px) { .k-steps.three { grid-template-columns: 1fr; } }
@media (max-width: 640px) { .k-steps { grid-template-columns: 1fr; } .k-switch label { min-width: 0; flex: 1; } .k-switch { display: flex; } .k-switch.tabs label { flex: 1 1 40%; padding: 10px 12px; } .k-specstrip dd { font-size: 28px; } }

/* Full-bleed photographs */
.k-bleed { position: relative; aspect-ratio: 3 / 2; max-height: 100svh; min-height: 520px; width: 100%; display: flex; align-items: flex-end; color: #fff; isolation: isolate; overflow: hidden; background: #0c0a08; }
.kit .k-bleed-media { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: -2; }
.k-bleed::before { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(180deg, rgba(6, 8, 10, 0) 62%, rgba(6, 8, 10, .86) 100%); }
.k-bleed-copy { padding-bottom: clamp(36px, 7vh, 80px); }
.k-bleed h2 { margin: 0; max-width: 900px; font-size: clamp(26px, 3.2vw, 46px); line-height: 1.04; letter-spacing: -.035em; font-weight: 620; }
.k-bleed p { max-width: 620px; margin: 16px 0 0; color: rgba(255, 255, 255, .82); font-size: clamp(15px, 1.4vw, 18px); }

/* Cards and features */
.k-cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; margin-top: clamp(28px, 4vw, 48px); }
.k-cards.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.k-card { margin: 0; padding: 14px 14px 24px; border-radius: var(--r-lg); background: var(--surface); border: 1px solid var(--line); }
.k-card img { width: 100%; border-radius: var(--r-md); }
.k-card h3 { margin: 18px 8px 8px; font-size: 20px; letter-spacing: -.02em; font-weight: 620; }
.k-card p, .k-card figcaption { margin: 0 8px; font-size: 15px; color: var(--text-2); }
.k-card figcaption { margin-top: 16px; }
.k-card figcaption b { color: var(--text); }
.k-card p + p { margin-top: 10px; }
@media (max-width: 980px) { .k-cards { grid-template-columns: 1fr 1fr; } }
@media (max-width: 640px) { .k-cards, .k-cards.two { grid-template-columns: 1fr; } }
.k-zoom { display: block; border-radius: var(--r-md); overflow: hidden; cursor: zoom-in; }
.k-zoom img { transition: transform .6s var(--ease); }
.k-zoom:hover img { transform: scale(1.025); }
.k-callout { display: grid; grid-template-columns: minmax(0, .5fr) minmax(0, 1.5fr); gap: 12px 40px; margin-top: clamp(28px, 4vw, 48px); padding: 28px 30px; border-radius: var(--r-lg); border: 1px solid var(--line-strong); background: linear-gradient(120deg, rgba(227, 154, 98, .1), transparent 60%); }
.k-callout p { margin: 0; color: var(--text-2); }
.k-callout .k-callout-title { color: var(--accent); font: 500 12px/1.4 var(--font-mono); letter-spacing: .14em; text-transform: uppercase; }
@media (max-width: 760px) { .k-callout { grid-template-columns: 1fr; } }
.k-split { display: grid; grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr); gap: clamp(24px, 4vw, 56px); align-items: center; }
.k-split.reverse { grid-template-columns: minmax(0, 1fr) minmax(0, 1.55fr); }
.k-split.reverse > :first-child { order: 2; }
@media (max-width: 900px) { .k-split, .k-split.reverse { grid-template-columns: 1fr; } .k-split.reverse > :first-child { order: 0; } }
.k-facts { margin: 0; }
.k-facts div { padding: 16px 0; border-bottom: 1px solid var(--line); }
.k-facts div:first-child { border-top: 1px solid var(--line); }
.k-facts dt { font: 500 11px/1.3 var(--font-mono); letter-spacing: .14em; text-transform: uppercase; color: var(--muted); }
.k-facts dd { margin: 6px 0 0; font-size: 16px; color: var(--text); }
.k-portal { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(24px, 4vw, 56px); align-items: center; margin-top: clamp(36px, 5vw, 64px); }
.k-portal img { width: 100%; border-radius: var(--r-lg); }
.k-portal h3 { margin: 0 0 18px; font-size: clamp(22px, 2.4vw, 30px); letter-spacing: -.02em; font-weight: 620; }
.k-pane p { margin: 0; color: var(--text-2); max-width: 520px; }
.k-pane-elec { display: none; }
#drive-elec:checked ~ .wrap .k-pane-elec { display: block; }
#drive-elec:checked ~ .wrap .k-pane-mech { display: none; }
@media (max-width: 860px) { .k-portal { grid-template-columns: 1fr; } }
.k-legend { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 10px; font-size: 13px !important; }
.k-key { display: inline-block; width: 10px; height: 10px; border-radius: 3px; margin-left: 6px; }
.k-key:first-child { margin-left: 0; }
.k-key.water { background: #5aa7e8; } .k-key.battery { background: #e39a62; } .k-key.fuel { background: #d9534f; }

/* Mass budget */
.k-mass { margin-top: clamp(48px, 7vw, 96px); padding: clamp(22px, 3vw, 40px); border-radius: var(--r-xl); border: 1px solid var(--line); background: var(--surface); }
.k-mass-head { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: 12px 40px; align-items: end; margin-bottom: 26px; }
.k-mass-head h3 { margin: 0; font-size: clamp(22px, 2.4vw, 30px); letter-spacing: -.02em; font-weight: 620; }
.k-mass-head p { margin: 0; color: var(--text-2); font-size: 15px; }
@media (max-width: 760px) { .k-mass-head { grid-template-columns: 1fr; } }
.k-meter { display: flex; gap: 2px; height: 14px; }
.k-meter-fill { flex: 46589 1 0; background: var(--accent); border-radius: 4px 0 0 4px; }
.k-meter-free { flex: 3411 1 0; border: 1px dashed var(--line-strong); border-radius: 0 4px 4px 0; }
.k-meter-scale { display: grid; grid-template-columns: 46589fr 3411fr; gap: 2px; margin: 8px 0 28px; font: 500 11px/1.2 var(--font-mono); color: var(--muted); }
.k-bars { width: 100%; border-collapse: collapse; font-size: 14px; }
.k-bars th { width: 38%; padding: 7px 16px 7px 0; text-align: left; font-weight: 450; color: var(--text-2); }
.k-bars td { display: flex; align-items: center; gap: 10px; padding: 7px 0; }
.k-bars tr:hover th { color: var(--text); }
.k-bars tr:hover .k-bar { background: var(--accent-2); }
.k-bar { display: block; height: 10px; border-radius: 0 4px 4px 0; background: var(--accent); transition: background .2s; }
.k-bars b { font: 500 13px/1 var(--font-mono); font-variant-numeric: tabular-nums; color: var(--text); white-space: nowrap; }
@media (max-width: 640px) { .k-bars th { width: 50%; font-size: 13px; } }
.k-w3 { width: calc((100% - 70px) * 0.03); }
.k-w5 { width: calc((100% - 70px) * 0.05); }
.k-w6 { width: calc((100% - 70px) * 0.06); }
.k-w7 { width: calc((100% - 70px) * 0.07); }
.k-w8 { width: calc((100% - 70px) * 0.08); }
.k-w9 { width: calc((100% - 70px) * 0.09); }
.k-w16 { width: calc((100% - 70px) * 0.16); }
.k-w21 { width: calc((100% - 70px) * 0.21); }
.k-w25 { width: calc((100% - 70px) * 0.25); }
.k-w35 { width: calc((100% - 70px) * 0.35); }
.k-w38 { width: calc((100% - 70px) * 0.38); }
.k-w40 { width: calc((100% - 70px) * 0.40); }
.k-w48 { width: calc((100% - 70px) * 0.48); }
.k-w57 { width: calc((100% - 70px) * 0.57); }
.k-w91 { width: calc((100% - 70px) * 0.91); }
.k-w100 { width: calc((100% - 70px) * 1.00); }
/* Build rail */
.k-rail-controls { display: flex; justify-content: flex-end; gap: 10px; margin: -12px 0 18px; }
.k-rail-controls[hidden] { display: none; }
.k-rail-btn { width: 44px; height: 44px; border-radius: 50%; border: 1px solid var(--line-strong); background: var(--surface); font-size: 18px; color: var(--text); }
.k-rail-btn:hover { border-color: var(--accent); }
.k-rail-btn:disabled { opacity: .35; cursor: default; }
.k-rail { display: grid; grid-auto-flow: column; grid-auto-columns: minmax(280px, 400px); gap: 20px; margin: 0; padding: 0 0 18px; list-style: none; overflow-x: auto; scroll-snap-type: x mandatory; overscroll-behavior-x: contain; scrollbar-width: thin; }
.k-step { scroll-snap-align: start; }
@media (max-width: 640px) { .k-rail { grid-auto-columns: 82vw; } }

/* Gallery */
.k-gallery { display: grid; grid-template-columns: 1fr; gap: 20px; }
.k-gallery img { width: 100%; }
.k-gallery .k-zoom { border-radius: var(--r-xl); }

/* Views */
.band.k-views { padding-top: clamp(48px, 6vw, 80px); }
.k-views .section-head { margin-bottom: clamp(24px, 3vw, 36px); }
.k-views-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.k-view { margin: 0; min-width: 0; }
.k-view.wide { grid-column: 1 / -1; }
.k-view img { width: 100%; height: auto; }
.k-view .k-zoom { border-radius: var(--r-xl); }
.k-view > figcaption, .k-view.wide figcaption { margin-top: 10px; font-size: 14px; color: var(--muted); }
.k-view figcaption b { color: var(--text); font-weight: 600; }
@media (max-width: 760px) { .k-views-grid { grid-template-columns: 1fr; gap: 16px; } }
details.k-more { margin-top: 10px; }
details.k-more summary { cursor: pointer; width: fit-content; font-size: 14px; color: var(--accent); list-style: none; }
details.k-more summary::-webkit-details-marker { display: none; }
details.k-more summary::before { content: "+ "; }
details.k-more[open] summary::before { content: "− "; }
details.k-more summary:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }
details.k-more p { margin: 10px 0 0; font-size: 14px; color: var(--text-2); }

/* Specs */
.k-spec { display: none; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 48px; margin: 0; }
#spec-dim:checked ~ .wrap .k-spec-dim, #spec-chassis:checked ~ .wrap .k-spec-chassis, #spec-body:checked ~ .wrap .k-spec-body, #spec-power:checked ~ .wrap .k-spec-power { display: grid; }
.k-spec div { padding: 18px 0; border-bottom: 1px solid var(--line); }
.k-spec dt { font-size: 14px; color: var(--muted); }
.k-spec dd { margin: 6px 0 0; font-size: 17px; }
@media (max-width: 760px) { .k-spec { grid-template-columns: 1fr; } }

/* Status */
.k-status { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: 32px 64px; }
.k-status .lede { margin-top: 0; }
.k-open { margin: 26px 0 0; padding: 0; list-style: none; }
.k-open li { padding: 14px 0; border-bottom: 1px solid var(--line); color: var(--text-2); }
.k-open li:first-child { border-top: 1px solid var(--line); }
.k-open b { color: var(--text); font-weight: 600; }
@media (max-width: 860px) { .k-status { grid-template-columns: 1fr; } }

/* Lightbox */
.k-lightbox { max-width: min(96vw, 1600px); width: auto; padding: 0; border: 0; border-radius: var(--r-lg); background: #000; overflow: hidden; }
.k-lightbox::backdrop { background: rgba(4, 6, 8, .88); }
.k-lightbox img { display: block; max-width: 96vw; max-height: 90vh; width: auto; height: auto; }
.k-close { position: absolute; top: 10px; right: 10px; width: 40px; height: 40px; border-radius: 50%; border: 0; background: rgba(0, 0, 0, .6); color: #fff; font-size: 22px; line-height: 1; }

@media (prefers-reduced-motion: reduce) { .k-zoom:hover img { transform: none; } }
.k-meter-scale span:nth-child(1) { display: none; }
.k-meter-scale span:nth-child(2) { text-align: right; }
.k-meter-scale span:nth-child(3) { text-align: right; }
@media (max-width: 760px) { .k-bleed { aspect-ratio: auto; min-height: 78svh; } .kit .k-bleed-media { object-position: 50% 30%; } }
.e-wet { fill: rgba(90, 167, 232, .14); stroke: #5aa7e8; stroke-width: .6; }
.e-exhaust { stroke: #d9534f; stroke-width: 1.6; stroke-linecap: round; }
.e-pole { fill: var(--text); stroke: var(--text); stroke-width: 1.2; }
.e-doorway { fill: none; stroke: var(--accent); stroke-width: .6; }