/* ═══════════════════════════════════════════════════════════════ FLOWSYNERGY — site.css : chrome (lifted from Meridian, fixed) + shared components. Tokens live in tokens.css. Per-type sheets extend; they never redefine chrome. ═══════════════════════════════════════════════════════════════ */ *,*::before,*::after{box-sizing:border-box} html{-webkit-text-size-adjust:100%; scroll-behavior:smooth; scroll-padding-top:calc(var(--rail-h) + 24px)} body{ margin:0; background:var(--bg); color:var(--txt); font-family:var(--body); font-size:16px; line-height:1.55; -webkit-font-smoothing:antialiased; overflow-x:hidden; padding-top:var(--rail-h); } img,svg{display:block; max-width:100%} img{height:auto} a{color:inherit; text-decoration:none} /* .98 is a DISPLAY leading -- right on a 74px h1, wrong on a 24px section heading, where it gives 23.5px of line box and descenders land on the next line's cap-line. The clamp on .prose h2 bottoms out at 1.5rem on a phone and this rule was never re-tuned for it, so ~20 pages set 5.8 lines average (eight on one) of colliding type. Leading tracks size. */ h1,h2,h3,h4{margin:0; font-family:var(--disp); font-weight:700; letter-spacing:-.03em; line-height:.98} /* 1180, not 900: `.prose h2`'s clamp does not leave its 24px floor until a 923px viewport, and 1180 is where both page shells break anyway. Keyed at 900 the fix missed the band it was written for. */ @media (max-width:1180px){ h2,h3,h4{line-height:1.14} .prose h2,.sechead h2{line-height:1.16} } p{margin:0} ul,ol{margin:0; padding:0} .mono{font-family:var(--mono); font-variant-numeric:tabular-nums; font-feature-settings:"tnum" 1} .ta-r{text-align:right} .sr{position:absolute; width:1px; height:1px; overflow:hidden; clip:rect(0 0 0 0); white-space:nowrap} /* C1-09: the focus ring lives HERE, with the chrome it has to decorate. It used to be declared in five per-type sheets, and in none of them were the header, the menu, the footer or the button in scope -- so the same chrome focused differently depending on which page you happened to be on. One declaration, everything focusable. */ a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible, select:focus-visible,textarea:focus-visible,[tabindex]:focus-visible{ outline:2px solid var(--sig); outline-offset:3px; border-radius:1px; } /* the skip link: no page had one. It stays off-canvas until focused. */ .skip{position:absolute; left:var(--gut); top:8px; z-index:200; padding:10px 16px; background:var(--bg-3); border:1px solid var(--sig); border-radius:var(--radius); color:var(--sig); font-family:var(--mono); font-size:12px; letter-spacing:.14em; text-transform:uppercase; transform:translateY(-180%); transition:transform .2s var(--ease); } .skip:focus{transform:none} /* film grain */ .grain{ position:fixed; inset:-50%; z-index:9999; pointer-events:none; opacity:.028; background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='180' height='180' filter='url(%23n)'/%3E%3C/svg%3E"); } /* ── persistent spec rail (header) ─────────────────────────── */ .rail{ position:fixed; top:0; left:0; right:0; z-index:100; height:var(--rail-h); display:flex; align-items:center; gap:clamp(16px,3vw,40px); padding:0 var(--gut); background:rgba(8,9,11,.82); backdrop-filter:blur(16px) saturate(140%); border-bottom:1px solid var(--line-struct); } /* delta #1: the rail is always visible (the concept hid it until JS + scroll) */ .rail__mark{display:flex; align-items:center; gap:9px; flex:none; color:var(--sig)} .rail__mark svg{width:18px; height:18px} .rail__mark span{font-family:var(--disp); font-weight:700; font-size:12px; letter-spacing:.16em; color:var(--txt)} .rail__state{display:flex; align-items:center; gap:clamp(14px,2.4vw,32px); margin-left:auto} .rail__cell{display:flex; flex-direction:column; gap:1px; line-height:1.1} .rail__cell .k{font-family:var(--mono); font-size:12px; letter-spacing:.18em; color:var(--dim)} .rail__cell .v{font-size:12px; font-weight:500; color:var(--txt-2); white-space:nowrap} .rail__cell--verdict .v{color:var(--sig); transition:color .3s} .rail__cell--verdict.is-bad .v{color:var(--bad)} .rail__cell--verdict.is-tbc .v{color:var(--warn)} .rail__nav{display:flex; gap:clamp(12px,1.8vw,26px); flex:none; padding-left:clamp(14px,2.4vw,32px); border-left:1px solid var(--line-struct)} .rail__nav a{font-family:var(--mono); font-size:12px; letter-spacing:.1em; text-transform:uppercase; color:var(--dim); transition:color .25s} .rail__nav a:hover,.rail__nav a[aria-current="page"]{color:var(--sig)} /* delta #2: CSS-only menu for ≤1180 */ .rail__menu{display:none; position:relative; flex:none} .rail__menu summary{ list-style:none; cursor:pointer; font-family:var(--mono); font-size:12px; letter-spacing:.14em; text-transform:uppercase; color:var(--txt-2); border:1px solid var(--line-struct); padding:11px 14px; border-radius:var(--radius); } .rail__menu summary::-webkit-details-marker{display:none} .rail__menu[open] summary{color:var(--sig); border-color:var(--sig)} .rail__menu ul{ list-style:none; position:absolute; right:0; top:calc(100% + 10px); min-width:220px; background:var(--bg-3); border:1px solid var(--line-struct); border-radius:var(--radius-frame); padding:8px 0; } .rail__menu li a{display:block; padding:14px 16px; font-family:var(--mono); font-size:12px; letter-spacing:.08em; text-transform:uppercase; color:var(--txt-2); border-left:2px solid transparent} .rail__menu li a:hover{color:var(--sig); background:var(--bg-2)} /* C1-06: the desktop nav carried aria-current into a rule inside `display:none`, so the only nav a phone ever sees never said where you were. The border is the non-colour cue. */ .rail__menu li a[aria-current="page"]{color:var(--sig); border-left-color:var(--sig); background:var(--bg-2)} /* the primary four, then everything else */ .rail__menu li.is-split a{border-top:1px solid var(--line-struct)} .rail__menu li.is-2nd a{color:var(--dim)} /* ── shell / section ───────────────────────────────────────── */ .sec{max-width:var(--wide); margin-inline:auto; padding:clamp(56px,9vh,120px) var(--gut); border-top:1px solid var(--line-struct)} .sec--first{border-top:0} .sechead{display:flex; gap:clamp(18px,3vw,52px); margin-bottom:clamp(30px,4.6vh,56px)} .sechead .num{flex:none; font-family:var(--mono); font-size:12px; letter-spacing:.12em; color:var(--txt-2); padding-top:.62em} .sechead h2{font-size:clamp(1.8rem,3.8vw,3.4rem); font-weight:700; text-wrap:balance} .lede{margin-top:14px; max-width:56ch; color:var(--txt-2); font-size:clamp(14.5px,1.1vw,16.5px); text-wrap:pretty} .eyebrow{ display:flex; align-items:center; gap:12px; font-family:var(--mono); font-size:12px; letter-spacing:.22em; text-transform:uppercase; color:var(--sig); margin-bottom:clamp(16px,2.6vh,28px); /* C6-02: 'ONE ADDRESS, ONE ROUTE / IN' -- a two-letter last line above the fold on the only conversion page. Balancing costs one property and the phrase stops orphaning. */ text-wrap:balance; } .eyebrow i{display:block; width:clamp(26px,4vw,64px); height:1px; background:currentColor; opacity:.5} .eyebrow a{color:inherit} .crumbs{display:flex; flex-wrap:wrap; gap:8px; list-style:none; font-family:var(--mono); font-size:12px; letter-spacing:.12em; text-transform:uppercase; color:var(--dim); margin-bottom:clamp(16px,2.6vh,28px)} .crumbs li+li::before{content:'/'; margin-right:8px; opacity:.5} .crumbs a:hover{color:var(--sig)} /* ── prose ─────────────────────────────────────────────────── */ .prose{max-width:var(--measure); font-size:17px; line-height:1.65; color:var(--txt-2)} .prose p+p,.prose p+ul,.prose ul+p,.prose ol+p,.prose p+ol{margin-top:1.1em} .prose h2{font-size:clamp(1.5rem,2.6vw,2.3rem); color:var(--txt); margin:2.6em 0 .7em; padding-top:.9em; border-top:1px solid var(--line-struct); display:flex; gap:18px; align-items:baseline} .prose h2 .num{font-family:var(--mono); font-size:12px; letter-spacing:.12em; color:var(--sig); flex:none} .prose h3{font-size:clamp(1.1rem,1.5vw,1.35rem); color:var(--txt); margin:1.8em 0 .5em; letter-spacing:-.02em} .prose a{color:var(--sig); border-bottom:1px solid rgba(133,224,255,.35)} .prose a:hover{border-bottom-color:var(--sig)} .prose strong{color:var(--txt); font-weight:600} /* Fenced off .steps. `.steps` is the hairline-grid technique -- its BACKGROUND is the line, showing through 1px gaps -- so a padding-left on it paints a solid bar of --line-struct down its left edge, and a margin between items paints bars across it. Invisible while the line measured 1.50:1; a 21px slab at 3.21:1. Raising the line revealed this, not caused it. */ .prose :is(ul,ol):not(.steps){padding-left:1.3em} .prose :is(ul,ol):not(.steps) > li + li{margin-top:.45em} .prose code,.prose .std{font-family:var(--mono); font-size:.9em; color:var(--txt)} .lead{font-size:clamp(17px,1.36vw,20px); line-height:1.55; color:var(--txt); max-width:var(--measure); text-wrap:pretty} .lead.is-dim{color:var(--txt-2)} .caveat{font-family:var(--mono); font-size:12px; letter-spacing:.04em; color:var(--dim); line-height:1.6; max-width:var(--measure); padding-top:12px; border-top:1px solid var(--line-struct); margin-top:1.4em} /* ── readout card (signature) ──────────────────────────────── */ .readout{background:var(--bg-3); border:1px solid var(--line-struct); border-radius:var(--radius-frame); padding:clamp(18px,2vw,26px); display:flex; flex-direction:column; gap:18px} .readout .k{display:block; font-family:var(--mono); font-size:12px; letter-spacing:.2em; text-transform:uppercase; color:var(--dim); margin-bottom:8px} .readout .big{display:flex; align-items:baseline; gap:9px; font-family:var(--disp); font-size:clamp(2.4rem,4vw,3.4rem); font-weight:600; letter-spacing:-.035em; color:var(--txt); line-height:1} .readout .big i{font-style:normal; font-size:13px; letter-spacing:.04em; color:var(--dim); font-weight:400; font-family:var(--mono)} .readout .row{display:grid; grid-template-columns:1fr 1fr; gap:14px; padding-bottom:16px; border-bottom:1px solid var(--line-struct)} .readout .v{font-size:15px; color:var(--txt-2)} .verdict{ display:flex; align-items:center; gap:10px; padding:10px 13px; border-radius:var(--radius); background:rgba(133,224,255,.07); border:1px solid rgba(133,224,255,.24); font-family:var(--mono); font-size:12px; letter-spacing:.08em; color:var(--sig); } .verdict .dot{width:6px; height:6px; border-radius:50%; background:currentColor; flex:none; box-shadow:0 0 0 4px rgba(133,224,255,.14)} .verdict.is-bad{background:rgba(255,122,99,.08); border-color:rgba(255,122,99,.30); color:var(--bad)} .verdict.is-bad .dot{box-shadow:0 0 0 4px rgba(255,122,99,.13)} .verdict.is-tbc{background:rgba(255,196,107,.07); border-color:rgba(255,196,107,.3); color:var(--warn)} .taglist{list-style:none; margin:0; padding:0; display:flex; flex-wrap:wrap; gap:5px} /* C5-03: the
  • was painted as a chip and the inside it was the only clickable part -- a 61x19 link in an 81x31 chip, so more than half of what reads as a button did nothing on tap. The padding belongs to whatever is being pressed. */ .taglist li{font-family:var(--mono); font-size:12px; letter-spacing:.04em; border-radius:var(--radius); background:rgba(255,255,255,.045); border:1px solid var(--line-struct); color:var(--txt-2)} .taglist li{padding:5px 9px} .taglist li:has(a){padding:0} /* no negative margin: it pulled the linked chips 2px smaller than the unlinked ones beside them. The
  • gives up its padding instead (above), so the box is unchanged. */ .taglist li > a{display:block; padding:5px 9px; border-radius:var(--radius)} .taglist--quiet li{background:transparent; color:var(--dim)} .taglist a:hover{color:var(--sig)} .note{font-size:13px; line-height:1.62; color:var(--txt-2); text-wrap:pretty} .tbc{ display:inline-block; font-family:var(--mono); font-size:12px; letter-spacing:.1em; text-transform:uppercase; color:var(--warn); border:1px dashed rgba(255,196,107,.45); padding:4px 10px; border-radius:var(--radius); white-space:nowrap; } /* ── hairline cell grid (signature) ────────────────────────── */ .cells{display:grid; gap:1px; background:var(--line-struct); border:1px solid var(--line-struct); border-radius:var(--radius-frame); overflow:hidden} .cells--2{grid-template-columns:repeat(2,1fr)} .cells--3{grid-template-columns:repeat(3,1fr)} .cells--4{grid-template-columns:repeat(4,1fr)} .cell{background:var(--bg-2); padding:clamp(20px,2.2vw,30px); display:flex; flex-direction:column; gap:12px; position:relative; min-width:0} .cell::after{content:''; position:absolute; left:0; top:0; width:100%; height:2px; background:var(--sig); transform:scaleX(0); transform-origin:left; transition:transform .45s var(--ease)} a.cell:hover,.cell:hover{background:var(--bg-3)} a.cell:hover::after{transform:none} .cell__ix{font-family:var(--mono); font-size:12px; letter-spacing:.18em; color:var(--txt-2); text-transform:uppercase} /* `.cell__t` is the card title for grids that live inside .prose, where an

    would be counted as a section heading and fail the heading-rhythm check on three words. It was declared in legal.css, which articles do not load -- the same wrong-sheet mistake as `.steps__h`, so it lives with the component this time. */ .cell h3,.cell .cell__t{font-size:clamp(1.05rem,1.4vw,1.3rem); font-weight:600; letter-spacing:-.02em; line-height:1.15; color:var(--txt); font-family:var(--disp); margin:0} .cell p{font-size:13px; line-height:1.62; color:var(--txt-2); text-wrap:pretty} .cell__foot{margin-top:auto; padding-top:12px; border-top:1px solid var(--line-struct); font-family:var(--mono); font-size:12px; letter-spacing:.1em; text-transform:uppercase; color:var(--dim)} .cell__foot b{color:var(--warn); font-weight:500} .cell__foot .ok{color:var(--txt-2); font-weight:500} /* ── standards / data table (signature) ─────────────────────── */ .tbl{width:100%; border-collapse:collapse; font-size:15px} .tbl th{text-align:left; font-family:var(--mono); font-size:12px; letter-spacing:.2em; text-transform:uppercase; color:var(--txt-2); font-weight:400; padding:0 16px 12px 0; border-bottom:1px solid var(--line-struct); vertical-align:bottom} .tbl td{padding:14px 16px 14px 0; border-bottom:1px solid var(--line-struct); vertical-align:top; color:var(--txt-2); line-height:1.5} .tbl td:first-child{font-family:var(--mono); font-size:13px; color:var(--txt); white-space:nowrap; width:1%} .tbl td:last-child,.tbl th:last-child{padding-right:0} .tbl tr.is-on td:first-child{color:var(--sig)} .tbl tr.is-on td{color:var(--txt-2)} .tbl td.hi{color:var(--sig)} .tbl td.lo{color:var(--dim)} .tbl--wrap td:first-child{white-space:normal; width:auto; min-width:9ch} .tbl--cols td:first-child{color:var(--txt); font-family:var(--mono); font-size:13px} .tbl--cols th:not(:first-child){color:var(--txt-2)} .tblwrap{overflow-x:auto; -webkit-overflow-scrolling:touch} /* R1-02: on narrow screens a wide table scrolls sideways — say so. Right-edge fade + a mono cue. Both are removed for tables that restack instead of scrolling (.tbl--duel ≤720, .stds ≤480, .tbl--wrap ≤480 — see below and service.css). */ @media (max-width:720px){ .tblwrap{ -webkit-mask-image:linear-gradient(90deg,#000 calc(100% - 44px),transparent); mask-image:linear-gradient(90deg,#000 calc(100% - 44px),transparent); } .tblwrap::before{ content:"scroll \2192"; display:block; font-family:var(--mono); font-size:12px; letter-spacing:.16em; text-transform:uppercase; color:var(--dim); padding-bottom:10px; } .tblwrap:has(.tbl--duel){-webkit-mask-image:none; mask-image:none} .tblwrap:has(.tbl--duel)::before{content:none} } @media (max-width:480px){ /* the standards tables restack as cards at ≤480: no sideways scroll, no cue */ .tblwrap:has(.stds),.tblwrap:has(.tbl--wrap){overflow-x:visible; -webkit-mask-image:none; mask-image:none} .tblwrap:has(.stds)::before,.tblwrap:has(.tbl--wrap)::before{content:none} .tbl.stds{min-width:0; font-size:13px} .tbl.stds thead{display:none} .tbl.stds tr{display:grid; grid-template-columns:minmax(0,1fr) auto; gap:4px 14px; padding:14px 0; border-bottom:1px solid var(--line-struct); align-items:baseline} .tbl.stds td{display:block; border-bottom:0; padding:0} .tbl.stds td:first-child{white-space:normal; width:auto; font-size:13px} .tbl.stds td:nth-child(2){grid-column:1 / -1; grid-row:2} .tbl.stds td:last-child{grid-column:2; grid-row:1; text-align:right} } .chip{display:inline-block; font-family:var(--mono); font-size:12px; letter-spacing:.14em; text-transform:uppercase; padding:4px 9px; border-radius:var(--radius); border:1px solid var(--line-struct); color:var(--txt-2); white-space:nowrap} .is-on .chip,.chip.is-on{border-color:rgba(133,224,255,.4); color:var(--sig); background:rgba(133,224,255,.07)} /* ── frames / images ───────────────────────────────────────── */ .frame{background:var(--bg-2); border:1px solid var(--line-struct); border-radius:var(--radius-frame); overflow:hidden; margin:0} /* GRADING HAPPENS ONCE, AT BUILD TIME -- deliberately not here (2026-08-21). This rule used to carry two CSS grades: a light one on every framed image and, on `.frame--photo`, a heavy cool cast built from sepia + hue-rotate(165deg) to pull raw client photography towards ice blue. Both are retired. Two reasons. First, `design-system/images.py grade()` now grades every image as it is written -- generated, client and catalogue plate alike -- so a CSS filter on top was a second, invisible grade stacked on the first, and the result was muddy. Second, and worse, hue-rotate is a hue ROTATION, not a tint: it turned the blue Pettinaroli balancing valve on the homepage card brass, so the picture contradicted its own alt text. Product colour is information on this site -- a blue body, a yellow lever, a brass manifold -- and CSS must not invent it. Change the grade in images.py, where it can be seen in the file on disk. */ .frame img{width:100%; height:auto; display:block} .frame figcaption{padding:12px 16px; border-top:1px solid var(--line-struct); font-family:var(--mono); font-size:12px; letter-spacing:.04em; color:var(--dim); line-height:1.6} .frame--ratio img{aspect-ratio:16/9; object-fit:cover} /* ── pull panel / key box ──────────────────────────────────── */ .panel{background:var(--bg-3); border:1px solid var(--line-struct); border-left:2px solid var(--sig); border-radius:var(--radius-frame); padding:clamp(18px,2vw,26px); max-width:var(--exhibit)} .panel .k{display:block; font-family:var(--mono); font-size:12px; letter-spacing:.2em; text-transform:uppercase; color:var(--txt-2); margin-bottom:10px} .panel p{font-size:15px; line-height:1.6; color:var(--txt)} .panel p+p{margin-top:.8em} .panel--warn{border-left-color:var(--warn)} .panel--warn .k{color:var(--warn)} /* ── step list ─────────────────────────────────────────────── */ .steps{list-style:none; counter-reset:s; display:grid; gap:1px; background:var(--line-struct); border:1px solid var(--line-struct); border-radius:var(--radius-frame); overflow:hidden} .steps li{counter-increment:s; background:var(--bg-2); padding:clamp(16px,1.8vw,22px) clamp(18px,2vw,26px); display:grid; grid-template-columns:3.2ch 1fr; gap:16px} .steps li::before{content:counter(s,decimal-leading-zero); font-family:var(--mono); font-size:12px; letter-spacing:.12em; color:var(--txt-2); padding-top:.35em} /* Every heading spelling this component has ever used, in the sheet that owns the component. `.steps` had drifted into three: `.steps h3` here, `.steps .steps__h` in article.css and `.steps .t` in about.css and contact.css separately -- so a page that emitted one spelling but did not load that sheet got an unstyled heading. about.html did exactly that. */ .steps h3,.steps .steps__h,.steps .t{display:block; font-family:var(--disp); font-size:1.05rem; font-weight:600; letter-spacing:-.02em; color:var(--txt); margin-bottom:6px} /* A4-01: the reading measure applies to the prose INSIDE an exhibit, not only to the page's own column. Capping it on one page in one sheet left every other ledger at ~126 characters. */ .steps p:not(.steps__h):not(.t){max-width:var(--measure)} /* B6-01: and so does the FRAME. Capping it on the article shell alone left one component rendering three widths -- 1,011px of frame around text stopping 320px short on both comparison pages. The band variant is a three-column row and genuinely needs the width; it opts back out below. */ .steps{max-width:calc(var(--measure) + 6ch)} /* ...but the measure caps a COLUMN of prose. A multi-column steps variant is a different object and opts out: capping it produced three 249px columns of 21-character lines. */ .steps--3,.steps--4{max-width:none} .steps p{font-size:15px; line-height:1.6; color:var(--txt-2)} /* ── sticky index (gutter device) ──────────────────────────── */ .index{position:sticky; top:calc(var(--rail-h) + 28px); align-self:start} .index .k{display:block; font-family:var(--mono); font-size:12px; letter-spacing:.2em; text-transform:uppercase; color:var(--dim); margin-bottom:12px} .index ol{list-style:none; border-left:1px solid var(--line-struct)} .index li a{display:block; padding:7px 0 7px 14px; margin-left:-1px; border-left:1px solid transparent; font-family:var(--mono); font-size:12px; letter-spacing:.06em; color:var(--dim); line-height:1.4} .index li a:hover{color:var(--sig); border-left-color:var(--sig)} .index li a .n{color:var(--sig); margin-right:8px} /* ── CTA (the one button) ──────────────────────────────────── */ .btn{ display:inline-flex; align-items:center; gap:10px; padding:13px 18px; border-radius:var(--radius); /*