/* Framework, version B: light Swiss-engineering / architectural monograph.
   Light theme locked. One accent (brand orange #f26323) used for fills and rules;
   a darker orange (#b8430f) is used wherever orange carries text, for AA contrast.
   Square corners everywhere. Strict 12-column grid, shown as faint guides. */

@font-face {
  font-family: "Archivo";
  src: url("../fonts/archivo-normal-latin.woff2") format("woff2");
  font-style: normal; font-weight: 100 900; font-stretch: 62% 125%; font-display: swap;
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "Archivo";
  src: url("../fonts/archivo-normal-latin-ext.woff2") format("woff2");
  font-style: normal; font-weight: 100 900; font-stretch: 62% 125%; font-display: swap;
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

:root {
  color-scheme: light;
  --paper: #f3f4f5;
  --paper-2: #e8eaec;
  --plate: #dfe2e5;
  --ink: #121416;
  --ink-2: #33393e;
  --muted: #5f666c;
  --rule: #c5cacf;
  --rule-strong: #121416;
  --accent: #f26323;
  --accent-text: #b8430f;
  --max: 1440px;
  --gutter: clamp(16px, 3.4vw, 48px);
  --gap: clamp(14px, 1.8vw, 28px);
  --nav-h: 72px;
  --ease: cubic-bezier(.2, .7, .1, 1);
  --sans: "Archivo", "Helvetica Neue", Arial, sans-serif;
  /* z-index scale */
  --z-guides: 0;
  --z-main: 1;
  --z-nav: 40;
  --z-menu: 50;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: calc(var(--nav-h) + 24px); }
body { margin: 0; background: var(--paper); color: var(--ink); font: 400 17px/1.6 var(--sans); font-stretch: 100%; -webkit-font-smoothing: antialiased; overflow-x: hidden; }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
p { margin: 0 0 1em; }
h1, h2, h3, h4 { margin: 0; font-weight: 800; }
:focus-visible { outline: 2px solid var(--accent-text); outline-offset: 3px; }
::selection { background: var(--accent); color: var(--ink); }
.skip { position: absolute; left: -9999px; top: 8px; background: var(--ink); color: var(--paper); padding: 10px 14px; z-index: 100; font-weight: 700; }
.skip:focus { left: 8px; }

.wrap { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 var(--gutter); }
.grid { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); column-gap: var(--gap); }
main { position: relative; z-index: var(--z-main); }

/* Column guides: the grid made visible, very faint, behind the content */
.guides { position: fixed; inset: 0; z-index: var(--z-guides); pointer-events: none; }
.guides .wrap, .guides .grid { height: 100%; }
.guides span { background: rgb(18 20 22 / .02); border-left: 1px solid rgb(18 20 22 / .03); border-right: 1px solid rgb(18 20 22 / .03); }

/* Column placement (start / end lines on the 12-col grid) */
.s1-5 { grid-column: 1 / 5; } .s1-6 { grid-column: 1 / 6; } .s1-7 { grid-column: 1 / 7; } .s1-8 { grid-column: 1 / 8; }
.s1-9 { grid-column: 1 / 9; } .s1-10 { grid-column: 1 / 10; } .s1-11 { grid-column: 1 / 11; } .s1-13 { grid-column: 1 / 13; }
.s4-13 { grid-column: 4 / 13; } .s5-13 { grid-column: 5 / 13; } .s6-13 { grid-column: 6 / 13; } .s7-13 { grid-column: 7 / 13; }
.s8-13 { grid-column: 8 / 13; } .s9-13 { grid-column: 9 / 13; } .s5-11 { grid-column: 5 / 11; } .s7-10 { grid-column: 7 / 10; }
.s10-13 { grid-column: 10 / 13; } .s5-9 { grid-column: 5 / 9; }

/* Type */
.display { font-stretch: 66%; font-weight: 800; letter-spacing: -.012em; line-height: .9; text-transform: none; }
.display-lg { font-size: clamp(50px, 10.4vw, 172px); }
.display-md { font-size: clamp(38px, 5.6vw, 92px); font-stretch: 68%; font-weight: 800; line-height: .94; letter-spacing: -.01em; }
.display-sm { font-size: clamp(30px, 3.4vw, 52px); font-stretch: 70%; font-weight: 800; line-height: .98; }
.lede { font-size: clamp(18px, 1.45vw, 21px); line-height: 1.55; color: var(--ink-2); max-width: 46ch; }
.muted { color: var(--muted); }
.tnum { font-variant-numeric: tabular-nums lining-nums; }
.eyebrow { display: block; font-size: 13px; font-weight: 700; font-stretch: 80%; letter-spacing: .14em; text-transform: uppercase; color: var(--accent-text); margin-bottom: 20px; }
.src { font-size: 13px; color: var(--muted); }
.src a { text-decoration: underline; text-decoration-color: var(--accent); text-underline-offset: 3px; }
.src a:hover { color: var(--ink); }

/* Buttons: square. Primary is orange with ink text (6:1). Secondary is an ink outline. */
.btn { display: inline-flex; align-items: center; gap: 12px; height: 52px; padding: 0 22px; font: 700 15px/1 var(--sans); font-stretch: 92%; letter-spacing: .02em; white-space: nowrap; border: 1px solid var(--ink); transition: background-color .3s var(--ease), color .3s var(--ease), border-color .3s var(--ease), transform .2s var(--ease); }
.btn svg { width: 18px; height: 18px; fill: currentColor; transition: transform .3s var(--ease); }
.btn:hover svg { transform: translateX(3px); }
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--accent); border-color: var(--accent); color: var(--ink); }
.btn-primary:hover { background: var(--ink); border-color: var(--ink); color: var(--paper); }
.btn-line { background: transparent; color: var(--ink); }
.btn-line:hover { background: var(--ink); color: var(--paper); }
.text-link { display: inline-flex; gap: 8px; align-items: center; font-weight: 700; font-stretch: 92%; border-bottom: 2px solid var(--accent); padding-bottom: 3px; }
.text-link svg { width: 16px; height: 16px; fill: currentColor; transition: transform .3s var(--ease); }
.text-link:hover svg { transform: translate(2px, -2px); }
.icon { width: 24px; height: 24px; display: inline-block; flex: none; fill: currentColor; }

/* Header */
.nav { position: sticky; top: 0; z-index: var(--z-nav); height: var(--nav-h); background: rgb(243 244 245 / .92); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); border-bottom: 1px solid var(--rule); }
.nav .wrap { height: 100%; }
.nav .grid { height: 100%; align-items: center; }
.mark { display: inline-flex; align-items: center; gap: 12px; grid-column: 1 / 4; }
.mark svg { width: 22px; height: 31px; flex: none; }
.mark b { font-weight: 800; font-stretch: 112%; font-size: 15px; line-height: .95; letter-spacing: .02em; }
.nav-links { grid-column: 5 / 10; display: flex; gap: clamp(18px, 2.4vw, 36px); list-style: none; margin: 0; padding: 0; }
.nav-links a { font-size: 15px; font-weight: 600; color: var(--ink-2); position: relative; padding: 6px 0; }
.nav-links a::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 2px; background: var(--accent); transform: scaleX(0); transform-origin: left; transition: transform .35s var(--ease); }
.nav-links a:hover::after, .nav-links a[aria-current="page"]::after { transform: scaleX(1); }
.nav-links a[aria-current="page"] { color: var(--ink); }
.nav .btn { grid-column: 10 / 13; justify-self: end; height: 44px; padding: 0 18px; font-size: 14px; }
.menu-btn { display: none; grid-column: 11 / 13; justify-self: end; width: 44px; height: 44px; align-items: center; justify-content: center; background: none; border: 1px solid var(--ink); color: var(--ink); cursor: pointer; }
.menu-btn svg { width: 22px; height: 22px; fill: currentColor; }
.progress { position: absolute; left: 0; right: 0; bottom: -1px; height: 2px; background: var(--accent); transform-origin: left; transform: scaleX(0); display: none; }
@supports (animation-timeline: scroll()) {
  @media (prefers-reduced-motion: no-preference) {
    .progress { display: block; animation: progress linear both; animation-timeline: scroll(root); }
    @keyframes progress { to { transform: scaleX(1); } }
  }
}
.mobile-menu { display: none; }
@media (max-width: 960px) {
  .nav-links, .nav .btn { display: none; }
  .menu-btn { display: inline-flex; }
  .mark { grid-column: 1 / 9; }
  .mobile-menu { position: fixed; inset: var(--nav-h) 0 0; z-index: var(--z-menu); background: var(--paper); padding: 24px var(--gutter) 40px; display: flex; flex-direction: column; opacity: 0; visibility: hidden; transform: translateY(-6px); transition: opacity .3s var(--ease), transform .3s var(--ease), visibility .3s; }
  .mobile-menu.open { opacity: 1; visibility: visible; transform: none; transition: opacity .3s var(--ease), transform .3s var(--ease), visibility 0s; }
  .mobile-menu a:not(.btn) { font-size: 40px; font-weight: 800; font-stretch: 68%; padding: 10px 0; border-bottom: 1px solid var(--rule); }
  .mobile-menu .btn { margin-top: 24px; justify-content: center; }
}

/* Sections */
.sec { padding: clamp(80px, 10vw, 148px) 0; border-top: 1px solid var(--rule); overflow-x: clip; }
.sec.alt { background: rgb(232 234 236 / .82); }
.sec-head { margin-bottom: clamp(40px, 5vw, 72px); row-gap: 0; }

/* Plates: images framed like plates in a monograph */
.plate { margin: 0; }
.plate .frame { position: relative; overflow: hidden; background: var(--plate); aspect-ratio: 16 / 9; }
.plate .frame img { width: 100%; height: 100%; object-fit: cover; }
.plate figcaption { display: flex; justify-content: space-between; gap: 24px; padding-top: 12px; margin-top: 12px; border-top: 1px solid var(--ink); font-size: 14px; color: var(--ink-2); }
.plate figcaption .r { color: var(--muted); white-space: nowrap; }

/* Hero */
.hero { padding: clamp(36px, 6vh, 72px) 0 clamp(64px, 8vw, 120px); }
.hero h1 { margin-bottom: clamp(28px, 4vh, 52px); }
.hero h1 .ln { display: block; overflow: hidden; padding-bottom: .03em; }
.hero h1 .ln > span { display: block; }
.hero h1 .ln:last-child > span { color: var(--ink-2); }
.hero .row { row-gap: 32px; align-items: start; }
.hero .intro { grid-column: 1 / 5; padding-top: 4px; }
.hero .intro p { font-size: clamp(18px, 1.35vw, 20px); color: var(--ink-2); margin-bottom: 30px; }
.hero .ctas { display: flex; flex-wrap: wrap; align-items: flex-start; gap: 12px; }
.hero .plate { grid-column: 5 / 13; }

/* Principles: offset definition list */
.principles-h { grid-column: 1 / 10; }
.principles { grid-column: 4 / 13; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); column-gap: var(--gap); margin: clamp(48px, 6vw, 88px) 0 0; }
.principles > div { border-top: 2px solid var(--ink); padding-top: 18px; }
.principles dt { display: flex; align-items: center; gap: 10px; font-weight: 800; font-stretch: 80%; font-size: 22px; margin-bottom: 10px; }
.principles dt .icon { color: var(--accent); width: 22px; height: 22px; }
.principles dd { margin: 0; color: var(--ink-2); font-size: 16px; }

/* Building types: index list with a single plate that follows the active row */
.types-body { align-items: start; }
.type-list { grid-column: 1 / 7; list-style: none; margin: 0; padding: 0; border-top: 2px solid var(--ink); }
.type-row { border-bottom: 1px solid var(--rule); padding: clamp(22px, 2.4vw, 32px) 0; cursor: default; transition: padding-left .4s var(--ease); position: relative; }
.type-row::before { content: ""; position: absolute; left: 0; top: -1px; height: 3px; width: 0; background: var(--accent); transition: width .5s var(--ease); }
.type-row.active::before, .type-row:focus-visible::before { width: 100%; }
.type-row .t-head { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; }
.type-row h3 { font-size: clamp(34px, 4vw, 60px); font-stretch: 66%; font-weight: 800; line-height: .95; color: var(--muted); transition: color .35s var(--ease); }
.type-row .icon { width: 28px; height: 28px; color: var(--rule); transition: color .35s var(--ease); }
.type-row.active h3, .type-row:hover h3 { color: var(--ink); }
.type-row.active .icon { color: var(--accent); }
.type-row .t-body { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); gap: var(--gap); margin-top: 14px; }
.type-row p { color: var(--ink-2); font-size: 16px; margin: 0; }
.type-row ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; font-size: 14.5px; color: var(--muted); }
.type-row li { padding-left: 16px; position: relative; }
.type-row li::before { content: ""; position: absolute; left: 0; top: .72em; width: 8px; height: 2px; background: var(--accent); }
.type-row .m-plate { display: none; }
.type-plate { grid-column: 7 / 13; position: sticky; top: calc(var(--nav-h) + 32px); }
.type-plate .frame { aspect-ratio: 4 / 3; }
.type-plate .frame img { position: absolute; inset: 0; clip-path: inset(0 0 100% 0); transition: clip-path .9s var(--ease); }
.type-plate .frame img.on { clip-path: inset(0 0 0 0); z-index: 1; }
html:not(.js) .type-plate .frame img:first-child { clip-path: inset(0 0 0 0); }
@media (max-width: 960px) {
  .type-list { grid-column: 1 / 13; }
  .type-plate { display: none; }
  .type-row .m-plate { display: block; margin-top: 18px; }
  .type-row h3 { color: var(--ink); }
  .type-row .icon { color: var(--accent); }
}
@media (max-width: 600px) { .type-row .t-body { grid-template-columns: 1fr; } }

/* Spec sheet figures */
.figures { margin: clamp(40px, 5vw, 72px) 0; row-gap: 40px; }
.figure { border-top: 2px solid var(--ink); padding-top: 22px; }
.fig-num { font-size: clamp(80px, 9vw, 156px); font-weight: 800; font-stretch: 62%; line-height: .82; letter-spacing: -.02em; font-variant-numeric: tabular-nums lining-nums; margin-bottom: 22px; }
.fig-num .unit { font-size: .3em; font-stretch: 80%; color: var(--accent-text); margin-left: 8px; letter-spacing: 0; }
.figure h3 { font-size: 22px; font-stretch: 82%; margin-bottom: 8px; line-height: 1.15; }
.figure p { color: var(--ink-2); max-width: 48ch; margin-bottom: 10px; }
.pair { margin-top: clamp(48px, 6vw, 88px); row-gap: 40px; align-items: start; }
.pair h3 { font-size: clamp(26px, 2.6vw, 38px); font-stretch: 70%; line-height: 1; margin-bottom: 12px; }
.pair p { color: var(--ink-2); max-width: 46ch; }
.steel-more { margin-top: clamp(40px, 5vw, 64px); }
#steel .plate.wide + .src { margin-top: 8px; }

/* Envelope: exploding sandwich panel (carried over from version A, restyled for the light theme) */
.panel-top { row-gap: 40px; align-items: end; }
.xsec { margin-top: clamp(56px, 7vw, 104px); row-gap: 36px; align-items: center; }
.explode { grid-column: 1 / 9; position: relative; height: clamp(380px, 40vw, 560px); perspective: 1400px; }
.explode .stage { position: absolute; inset: 0; transform-style: preserve-3d; transform: rotateX(56deg) rotateZ(-34deg); }
.explode .layer { position: absolute; left: 16%; top: 18%; width: 60%; height: 58%; transform-style: preserve-3d; transition: transform 1.1s var(--ease); }
.explode .face { position: absolute; inset: 0; }
.explode .skin-out .face { background-image: repeating-linear-gradient(90deg, transparent 0 15.5%, rgb(255 255 255 / .08) 15.5% 16%), linear-gradient(135deg, #3b4247, #24292d); box-shadow: inset 0 0 0 1px rgb(255 255 255 / .1), 0 40px 60px -24px rgb(18 20 22 / .4); }
.explode .core .face { background-color: #e4d39a; background-image: radial-gradient(rgb(120 92 24 / .28) 1px, transparent 1.4px); background-size: 8px 8px; box-shadow: inset 0 0 0 1px rgb(18 20 22 / .14), 0 32px 50px -24px rgb(18 20 22 / .3); }
.explode .skin-in .face { background: linear-gradient(135deg, #ffffff, #c4cacf); box-shadow: inset 0 0 0 1px rgb(18 20 22 / .14), 0 32px 50px -24px rgb(18 20 22 / .26); }
.explode .skin-out { transform: translateZ(24px); }
.explode .core { transform: translateZ(0); }
.explode .skin-in { transform: translateZ(-24px); }
.explode.open .skin-out { transform: translateZ(150px); }
.explode.open .skin-in { transform: translateZ(-150px); }
.explode .callouts { list-style: none; margin: 0; padding: 0; position: absolute; inset: 0; pointer-events: none; }
.explode .callout { position: absolute; display: flex; align-items: center; opacity: 0; transform: translateX(-6px); transition: opacity .6s var(--ease) .55s, transform .6s var(--ease) .55s; }
.explode .callout i { display: block; width: 44px; height: 1px; background: var(--ink); }
.explode .callout b { display: inline-flex; width: 26px; height: 26px; align-items: center; justify-content: center; background: var(--ink); color: var(--paper); font: 800 13px/1 var(--sans); font-stretch: 80%; }
.explode .callout.c2 b { background: var(--accent); color: var(--ink); }
.explode.open .callout { opacity: 1; transform: none; }
.explode .c1 { left: 64%; top: 7%; }
.explode .c2 { left: 73%; top: 41%; }
.explode .c3 { left: 61%; top: 80%; }
.xsec-key { grid-column: 9 / 13; margin: 0; display: grid; gap: 18px; }
.xsec-key > div { display: grid; grid-template-columns: 34px 1fr; gap: 12px; }
.xsec-key dt b { display: inline-flex; width: 26px; height: 26px; align-items: center; justify-content: center; background: var(--ink); color: var(--paper); font-weight: 800; font-size: 13px; }
.xsec-key > div:nth-child(2) dt b { background: var(--accent); color: var(--ink); }
.xsec-key dd { margin: 0; }
.xsec-key dd strong { display: block; font-stretch: 82%; font-size: 18px; }
.xsec-key dd span { color: var(--muted); font-size: 15px; }

.spec-row { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); column-gap: var(--gap); row-gap: 36px; margin-top: clamp(56px, 7vw, 104px); }
.spec { border-top: 2px solid var(--ink); padding-top: 18px; }
.spec .num { font-size: clamp(48px, 5vw, 80px); font-weight: 800; font-stretch: 62%; line-height: .9; font-variant-numeric: tabular-nums lining-nums; }
.spec .num small { font-size: .38em; font-stretch: 80%; color: var(--accent-text); margin-left: 4px; }
.spec p { color: var(--ink-2); font-size: 15.5px; margin: 12px 0 8px; }

/* Comparison table */
.compare { margin-top: clamp(56px, 7vw, 104px); border-top: 2px solid var(--ink); }
.compare .crow { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: var(--gap); padding: 14px 0; }
.compare .crow:nth-child(even) { background: rgb(18 20 22 / .035); }
.compare .crow.headrow { padding: 18px 0; }
.compare .crow.headrow div { font-weight: 800; font-stretch: 80%; font-size: 20px; }
.compare .crow.headrow div:last-child { color: var(--ink); }
.compare .cell { display: grid; grid-template-columns: 22px 1fr; gap: 12px; font-size: 15.5px; color: var(--muted); padding: 0 12px; }
.compare .cell.us { color: var(--ink); }
.compare .cell .icon { width: 18px; height: 18px; margin-top: 4px; }
.compare .cell.us .icon { color: var(--accent-text); }
.compare .cell { position: relative; }
.compare .cell .lbl { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.compare .cell .txt { grid-column: 2; }

/* Process: steps with a scroll-drawn rule */
.steps { margin: clamp(40px, 5vw, 72px) 0 0; position: relative; }
.steps ol { list-style: none; margin: 0; padding: 0; }
.steps::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 2px; background: var(--rule); }
.steps .fill { position: absolute; left: 0; top: 0; bottom: 0; width: 2px; background: var(--accent); transform-origin: top; transform: scaleY(1); }
.step { padding: clamp(26px, 3vw, 40px) 0; border-bottom: 1px solid var(--rule); align-items: baseline; }
.step:first-child { padding-top: 6px; }
.step h3 { grid-column: 2 / 6; font-size: clamp(40px, 5vw, 80px); font-stretch: 64%; line-height: .9; }
.step p { grid-column: 6 / 12; color: var(--ink-2); margin: 0; max-width: 54ch; }
.step .icon { grid-column: 12 / 13; justify-self: end; width: 30px; height: 30px; color: var(--accent-text); }
@supports (animation-timeline: view()) {
  @media (prefers-reduced-motion: no-preference) {
    .js .steps .fill { animation: draw linear both; animation-timeline: view(); animation-range: entry 40% cover 70%; }
    @keyframes draw { from { transform: scaleY(0); } to { transform: scaleY(1); } }
  }
}
@media (max-width: 760px) {
  .step h3 { grid-column: 2 / 13; margin-bottom: 10px; }
  .step p { grid-column: 2 / 13; }
  .step .icon { display: none; }
}

/* Business parks */
.parks .plate .frame { aspect-ratio: 21 / 9; }
.parks .grid { margin-top: clamp(40px, 5vw, 64px); row-gap: 24px; }
.offer { grid-column: 5 / 13; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); column-gap: var(--gap); list-style: none; margin: 24px 0 0; padding: 0; }
.offer li { border-top: 2px solid var(--accent); padding-top: 14px; font-weight: 800; font-stretch: 76%; font-size: clamp(22px, 2.2vw, 30px); }

/* CTA */
.cta h2 { grid-column: 1 / 11; }
.cta .grid + .grid { margin-top: clamp(40px, 5vw, 72px); row-gap: 32px; align-items: start; }
.cta .act { grid-column: 1 / 6; }
.cta .act p { color: var(--ink-2); max-width: 44ch; margin-bottom: 26px; }
.cta .meta { border-top: 2px solid var(--ink); padding-top: 14px; font-size: 15.5px; color: var(--ink-2); }
.cta .meta strong { display: block; color: var(--ink); font-stretch: 82%; font-size: 17px; margin-bottom: 4px; }
.cta .meta a:hover { color: var(--accent-text); }
.cta .m1 { grid-column: 7 / 10; } .cta .m2 { grid-column: 10 / 13; }

/* Footer */
.footer { border-top: 2px solid var(--ink); padding: clamp(48px, 6vw, 80px) 0 32px; position: relative; z-index: var(--z-main); background: var(--paper); }
.footer .grid { row-gap: 36px; }
.footer .f-brand { grid-column: 1 / 5; }
.footer .f-brand p { color: var(--muted); max-width: 36ch; margin-top: 16px; font-size: 15.5px; }
.footer .f-h { font-size: 14px; font-stretch: 86%; font-weight: 800; letter-spacing: .02em; margin-bottom: 14px; }
.footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.footer ul a, .footer address { color: var(--ink-2); font-style: normal; font-size: 15.5px; }
.footer ul a:hover { color: var(--accent-text); }
.footer .f1 { grid-column: 6 / 8; } .footer .f2 { grid-column: 8 / 10; } .footer .f3 { grid-column: 10 / 13; }
.footer .f3 a { overflow-wrap: anywhere; }
.footer .bottom { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-top: 56px; padding-top: 18px; border-top: 1px solid var(--rule); font-size: 13.5px; color: var(--muted); }
.footer .bottom a:hover { color: var(--ink); }

/* Responsive collapse: every multi-column block goes to one column under 760px */
@media (max-width: 960px) {
  .hero .intro { grid-column: 1 / 13; }
  .hero .plate { grid-column: 1 / 13; }
  .hero .ctas { flex-direction: row; flex-wrap: wrap; }
  .principles-h { grid-column: 1 / 13; }
  .principles { grid-column: 1 / 13; }
  .explode { grid-column: 1 / 13; height: 440px; }
  .xsec-key { grid-column: 1 / 13; }
  .spec-row { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer .f-brand { grid-column: 1 / 13; }
  .footer .f1 { grid-column: 1 / 5; } .footer .f2 { grid-column: 5 / 9; } .footer .f3 { grid-column: 9 / 13; }
  .guides .grid span:nth-child(n+7) { display: none; }
  .guides .grid { grid-template-columns: repeat(6, minmax(0, 1fr)); }
}
@media (max-width: 760px) {
  .s5-9, .s1-5, .s1-6, .s1-7, .s1-8, .s1-9, .s1-10, .s1-11, .s1-13, .s4-13, .s5-13, .s6-13, .s7-13, .s8-13, .s9-13, .s5-11, .s7-10, .s10-13 { grid-column: 1 / 13; }
  .principles { grid-template-columns: 1fr; row-gap: 28px; }
  .offer { grid-column: 1 / 13; grid-template-columns: 1fr; row-gap: 16px; }
  .compare .crow { grid-template-columns: 1fr; row-gap: 12px; }
  .compare .crow.headrow { display: none; }
  .compare .crow:nth-child(2) .cell .lbl { position: static; width: auto; height: auto; overflow: visible; clip-path: none; white-space: normal; display: block; grid-column: 2; font-size: 12.5px; font-weight: 700; font-stretch: 86%; color: var(--muted); }
  .spec-row { grid-template-columns: 1fr; }
  .cta .m1, .cta .m2, .cta .act { grid-column: 1 / 13; }
  .footer .f1, .footer .f2, .footer .f3 { grid-column: 1 / 13; }
  .plate figcaption { flex-direction: column; gap: 4px; }
  .parks .plate .frame { aspect-ratio: 4 / 3; }
  .guides { display: none; }
}

/* Motion: calm and precise. Everything is gated on the .js class and reduced motion. */
@media (prefers-reduced-motion: no-preference) {
  .js .reveal { opacity: 0; transform: translateY(18px); transition: opacity .8s var(--ease), transform .8s var(--ease); transition-delay: calc(var(--i, 0) * 70ms); }
  .js .reveal.in { opacity: 1; transform: none; }
  .js .plate.clip .frame img { clip-path: inset(0 0 100% 0); transition: clip-path 1.3s var(--ease); }
  .js .plate.clip.in .frame img { clip-path: inset(0 0 0 0); }
  .js .plate.clip figcaption { opacity: 0; transition: opacity .8s var(--ease) .5s; }
  .js .plate.clip.in figcaption { opacity: 1; }
  .js .hero h1 .ln > span { transform: translateY(102%); transition: transform 1s var(--ease); transition-delay: calc(.1s + var(--i, 0) * .12s); }
  .js.loaded .hero h1 .ln > span { transform: none; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition-duration: .001ms !important; scroll-behavior: auto !important; }
  .type-plate .frame img { transition: none; }
  .explode .skin-out { transform: translateZ(150px); }
  .explode .skin-in { transform: translateZ(-150px); }
  .explode .callout { opacity: 1; transform: none; }
}
.render-note { font-size: 13px; color: var(--muted); flex: 1 1 320px; text-align: center; }
@media (max-width: 760px) { .render-note { text-align: left; } }

/* Dark plate (the dusk render) reads as a deliberate contrast moment on the light page */
.plate.dark .frame { background: #1a1f24; }
@media (max-width: 520px) {
  .explode { height: 360px; }
  .explode .stage { transform: rotateX(56deg) rotateZ(-34deg) scale(.82); }
  .explode .c1 { left: 56%; top: 4%; } .explode .c2 { left: 70%; top: 41%; } .explode .c3 { left: 58%; top: 86%; }
}

/* ---------- Inner pages ---------- */
.page-hero { padding: clamp(40px, 7vh, 88px) 0 clamp(48px, 6vw, 96px); }
.page-title { font-size: clamp(52px, 8.6vw, 144px); }
.page-title .ln { display: block; overflow: hidden; padding-bottom: .03em; }
.page-title .ln > span { display: block; }
.page-lede { grid-column: 1 / 8; margin-top: clamp(20px, 3vh, 36px); }
.hero-plate { margin-top: clamp(40px, 5vw, 72px); }
.hero-plate .plate .frame { aspect-ratio: 21 / 9; }
@media (prefers-reduced-motion: no-preference) {
  .js .page-title .ln > span { transform: translateY(102%); transition: transform 1s var(--ease) .1s; }
  .js.loaded .page-title .ln > span { transform: none; }
}

/* Split: sticky heading left, prose right */
.split { align-items: start; row-gap: 28px; }
.split .side { grid-column: 1 / 5; position: sticky; top: calc(var(--nav-h) + 32px); }
.split .main { grid-column: 6 / 13; }
.prose p, .prose li { color: var(--ink-2); }
.prose p { max-width: 66ch; }
.prose h3 { font-size: 22px; font-stretch: 82%; margin: 40px 0 10px; line-height: 1.15; }
.prose h3:first-child { margin-top: 0; }
.prose a { text-decoration: underline; text-decoration-color: var(--accent); text-underline-offset: 3px; }
.prose a:hover { color: var(--accent-text); }
.prose > ul { list-style: none; padding: 0; margin: 0 0 1em; display: grid; gap: 10px; }
.prose > ul:not(.sources) li { position: relative; padding-left: 22px; }
.prose > ul:not(.sources) li::before { content: ""; position: absolute; left: 0; top: .78em; width: 12px; height: 2px; background: var(--accent); }
.prose .src { display: block; margin-top: 6px; }

/* Numbered claims with their sources */
.claims { list-style: none; margin: 32px 0 0; padding: 0; border-top: 2px solid var(--ink); }
.claims li { display: grid; grid-template-columns: 44px 1fr; gap: 14px; padding: 18px 0; border-bottom: 1px solid var(--rule); color: var(--ink-2); }
.claims .n { font-weight: 800; font-stretch: 66%; font-size: 22px; line-height: 1.2; color: var(--accent-text); font-variant-numeric: tabular-nums lining-nums; }
.sources { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; counter-reset: s; }
.sources li { counter-increment: s; display: grid; grid-template-columns: 34px 1fr; gap: 10px; font-size: 15.5px; }
.sources li::before { content: counter(s, decimal-leading-zero); font-weight: 800; font-stretch: 70%; color: var(--muted); }

/* Buildings: two-column plate grid with an offset second column */
.tgrid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: clamp(56px, 6vw, 96px) var(--gap); }
.tcard .plate { margin-bottom: 24px; }
.tcard .plate .frame { aspect-ratio: 16 / 10; }
.tcard h2 { margin-bottom: 12px; }
.tcard p { color: var(--ink-2); max-width: 52ch; margin: 0; }
.tcard:nth-child(2n) { margin-top: clamp(0px, 9vw, 140px); }

/* Services */
.svcs .svc { padding: clamp(36px, 4.4vw, 64px) 0; border-top: 2px solid var(--ink); row-gap: 20px; align-items: start; }
.svcs .svc + .svc { border-top: 1px solid var(--rule); }
.svc .head { grid-column: 1 / 5; display: flex; flex-direction: column; gap: 16px; }
.svc .head .icon { width: 34px; height: 34px; color: var(--accent-text); }
.svc .body { grid-column: 6 / 13; }
.svc .lede { max-width: 60ch; }
.svc .tags { list-style: none; margin: 24px 0 0; padding: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: var(--gap); }
.svc .tags li { border-top: 1px solid var(--ink); padding: 12px 0 14px; font-weight: 700; font-stretch: 86%; font-size: 15.5px; }

/* Contact */
.contact { align-items: start; row-gap: 40px; }
.contact-info { grid-column: 1 / 5; margin: 0; display: grid; gap: 26px; }
.contact-info > div { border-top: 2px solid var(--ink); padding-top: 14px; }
.contact-info dt { display: flex; align-items: center; gap: 10px; font-weight: 800; font-stretch: 82%; font-size: 18px; margin-bottom: 6px; }
.contact-info dt .icon { width: 20px; height: 20px; color: var(--accent-text); }
.contact-info dd { margin: 0; color: var(--ink-2); }
.contact-info a:hover { color: var(--accent-text); }
form.quote { grid-column: 6 / 13; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px var(--gap); border-top: 2px solid var(--ink); padding-top: 28px; }
.field { display: grid; gap: 8px; align-content: start; }
.field.full { grid-column: 1 / -1; }
.field label { font-size: 14px; font-weight: 700; font-stretch: 90%; color: var(--ink); }
.field label .opt { color: var(--muted); font-weight: 400; }
.field input, .field select, .field textarea { width: 100%; background: #fff; color: var(--ink); border: 1px solid #767e85; border-radius: 0; padding: 13px 14px; font: 400 16px/1.4 var(--sans); -webkit-appearance: none; appearance: none; transition: border-color .2s, box-shadow .2s; }
.field select { background-image: linear-gradient(45deg, transparent 50%, var(--ink-2) 50%), linear-gradient(135deg, var(--ink-2) 50%, transparent 50%); background-position: calc(100% - 20px) 55%, calc(100% - 15px) 55%; background-size: 5px 5px; background-repeat: no-repeat; padding-right: 40px; }
.field textarea { min-height: 150px; resize: vertical; }
.field input::placeholder, .field textarea::placeholder { color: #6c747a; }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--ink); box-shadow: 0 0 0 2px var(--accent); }
.field .err { font-size: 13.5px; color: #a3330b; }
.field.invalid input, .field.invalid select, .field.invalid textarea { border-color: #a3330b; }
.hp { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.form-foot { grid-column: 1 / -1; display: flex; align-items: center; justify-content: space-between; gap: 18px; flex-wrap: wrap; }
.form-foot small { color: var(--muted); font-size: 13.5px; max-width: 44ch; }
.form-foot small a { text-decoration: underline; text-decoration-color: var(--accent); text-underline-offset: 2px; }
.form-status { grid-column: 1 / -1; padding: 14px 16px; border: 1px solid var(--ink); background: #fff; }
.form-status:not(.show) { position: absolute; width: 1px; height: 1px; padding: 0; border: 0; overflow: hidden; clip-path: inset(50%); }
.form-status.ok { border-color: var(--accent); }
.form-status.bad { border-color: #a3330b; color: #7d270a; }
.btn[disabled] { opacity: .6; cursor: progress; }

@media (max-width: 960px) {
  .split .side { grid-column: 1 / 13; position: static; }
  .split .main { grid-column: 1 / 13; }
  .page-lede { grid-column: 1 / 13; }
  .svc .head, .svc .body { grid-column: 1 / 13; }
  .contact-info, form.quote { grid-column: 1 / 13; }
}
@media (max-width: 760px) {
  .tgrid { grid-template-columns: 1fr; }
  .tcard:nth-child(2n) { margin-top: 0; }
  .hero-plate .plate .frame { aspect-ratio: 4 / 3; }
}
@media (max-width: 560px) {
  form.quote { grid-template-columns: 1fr; }
  .svc .tags { grid-template-columns: 1fr; }
}

/* Screen-reader-only text (final values behind the count-ups) */
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }

/* Hero benefits: medium-size row under the one-line headline */
.hero h1 .ln:only-child > span { color: var(--ink); }
.hero .benefits { list-style: none; margin: 0 0 clamp(36px, 5vh, 64px); padding: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); column-gap: var(--gap); row-gap: 22px; }
.hero .benefits li { border-top: 2px solid var(--accent); padding-top: 14px; font-size: clamp(22px, 2.1vw, 34px); font-weight: 800; font-stretch: 72%; line-height: 1.06; letter-spacing: -.005em; color: var(--ink-2); }
@media (max-width: 960px) { .hero .benefits { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 560px) { .hero .benefits { grid-template-columns: 1fr; row-gap: 14px; } .hero .benefits li { font-size: 24px; } }