/* ZEN Systems Group — public site styles
   Brand: monochrome graphite/white, Alumni Sans (display) + IBM Plex Sans (text) + IBM Plex Mono (technical data). */

@font-face { font-family: 'Alumni Sans'; font-style: normal; font-weight: 100 900; font-display: swap;
  src: url('../fonts/alumni-sans-latin-ext-wght-normal.woff2') format('woff2');
  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; }
@font-face { font-family: 'Alumni Sans'; font-style: normal; font-weight: 100 900; font-display: swap;
  src: url('../fonts/alumni-sans-latin-wght-normal.woff2') format('woff2');
  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: 'IBM Plex Sans'; font-weight: 400; font-display: swap; src: url('../fonts/ibm-plex-sans-latin-400-normal.woff2') format('woff2'); 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: 'IBM Plex Sans'; font-weight: 400; font-display: swap; src: url('../fonts/ibm-plex-sans-latin-ext-400-normal.woff2') format('woff2'); 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; }
@font-face { font-family: 'IBM Plex Sans'; font-weight: 500; font-display: swap; src: url('../fonts/ibm-plex-sans-latin-500-normal.woff2') format('woff2'); 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: 'IBM Plex Sans'; font-weight: 500; font-display: swap; src: url('../fonts/ibm-plex-sans-latin-ext-500-normal.woff2') format('woff2'); 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; }
@font-face { font-family: 'IBM Plex Sans'; font-weight: 600; font-display: swap; src: url('../fonts/ibm-plex-sans-latin-600-normal.woff2') format('woff2'); 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: 'IBM Plex Sans'; font-weight: 600; font-display: swap; src: url('../fonts/ibm-plex-sans-latin-ext-600-normal.woff2') format('woff2'); 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; }
@font-face { font-family: 'IBM Plex Mono'; font-weight: 400; font-display: swap; src: url('../fonts/ibm-plex-mono-latin-400-normal.woff2') format('woff2'); 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: 'IBM Plex Mono'; font-weight: 400; font-display: swap; src: url('../fonts/ibm-plex-mono-latin-ext-400-normal.woff2') format('woff2'); 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; }
@font-face { font-family: 'IBM Plex Mono'; font-weight: 500; font-display: swap; src: url('../fonts/ibm-plex-mono-latin-500-normal.woff2') format('woff2'); 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: 'IBM Plex Mono'; font-weight: 500; font-display: swap; src: url('../fonts/ibm-plex-mono-latin-ext-500-normal.woff2') format('woff2'); 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 {
  --ink: #1d1d1b;
  --black: #0d0d0c;
  --paper: #f4f3f0;
  --paper-2: #e8e6e1;
  --white: #ffffff;
  --mute: #6a6862;
  --line: rgba(29, 29, 27, .18);
  --line-strong: rgba(29, 29, 27, .55);
  --f-display: 'Alumni Sans', 'Arial Narrow', 'Helvetica Neue', Arial, sans-serif;
  --f-body: 'IBM Plex Sans', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --f-mono: 'IBM Plex Mono', ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  --gutter: clamp(16px, 4vw, 48px);
  --max: 1320px;
  --header-h: 68px;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--f-body); font-size: 1.0625rem; line-height: 1.6; -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; }
img, svg { max-width: 100%; }
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: .18em; }
:focus-visible { outline: 2px solid var(--ink); outline-offset: 3px; }
.sec-dark :focus-visible, .hero :focus-visible, .cta-band :focus-visible, .site-footer :focus-visible { outline-color: var(--white); }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; left: 8px; top: -60px; background: var(--ink); color: #fff; padding: .6rem 1rem; z-index: 100; }
.skip:focus { top: 8px; }
.wrap { width: 100%; max-width: var(--max); margin-inline: auto; padding-inline: var(--gutter); }
.narrow { max-width: 820px; }
.mono { font-family: var(--f-mono); }
.small { font-size: .8125rem; }
.tiny { font-size: .75rem; line-height: 1.5; }
.muted { color: var(--mute); }
svg.logo, .foot-mark, .ph-mark { fill: currentColor; }

/* ---------- type ---------- */
h1, h2, h3, .display { font-family: var(--f-display); font-weight: 800; text-transform: uppercase; letter-spacing: .005em; line-height: .95; margin: 0; text-wrap: balance; }
h1 { font-size: clamp(3.4rem, 8.5vw, 8rem); }
h2 { font-size: clamp(2.4rem, 5vw, 4.2rem); }
h3 { font-size: clamp(1.6rem, 2.4vw, 2rem); line-height: 1; }
p { margin: 0 0 1em; }
.eyebrow { font-family: var(--f-mono); font-size: .75rem; letter-spacing: .09em; text-transform: uppercase; color: var(--mute); margin: 0 0 1rem; font-weight: 400; line-height: 1.4; }
.eyebrow a { text-decoration: none; }
.eyebrow a:hover { text-decoration: underline; }
.lead { font-size: clamp(1.1rem, 1.6vw, 1.3rem); line-height: 1.5; max-width: 58ch; color: var(--mute); }
.lead-body { font-size: 1.25rem; line-height: 1.5; }
.link-arrow { font-family: var(--f-mono); font-size: .8125rem; letter-spacing: .06em; text-transform: uppercase; text-decoration: none; border-bottom: 1px solid currentColor; padding-bottom: 2px; }
.link-arrow::after { content: ' →'; }
.link-arrow:hover { border-bottom-width: 2px; }
.more, .link-row { margin-top: 2.2rem; }
.empty { padding: 3rem 0; color: var(--mute); font-size: 1.15rem; }

/* ---------- buttons ---------- */
.btn { display: inline-flex; align-items: center; gap: .7rem; padding: .78rem 1.4rem .7rem; font-family: var(--f-display); font-weight: 700; font-size: 1.35rem; letter-spacing: .05em; text-transform: uppercase; text-decoration: none; border: 1px solid var(--ink); background: transparent; color: var(--ink); cursor: pointer; line-height: 1; transition: background .2s, color .2s, border-color .2s; border-radius: 0; }
.btn .mono { font-size: .7rem; letter-spacing: .04em; opacity: .7; text-transform: none; font-weight: 400; }
.btn-dark { background: var(--ink); color: #fff; }
.btn-dark:hover { background: #000; }
.btn-line:hover { background: var(--ink); color: #fff; }
.btn-light { background: #fff; color: var(--ink); border-color: #fff; }
.btn-light:hover { background: transparent; color: #fff; }
.btn-ghost { border-color: rgba(255,255,255,.55); color: #fff; }
.btn-ghost:hover { background: #fff; color: var(--ink); }

/* ---------- header ---------- */
.site-header { position: sticky; top: env(safe-area-inset-top, 0px); z-index: 50; background: rgba(244, 243, 240, .92); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.bar { display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; height: var(--header-h); }
.brand { display: block; color: var(--ink); line-height: 0; }
.brand .logo { height: 40px; width: auto; aspect-ratio: 141.55 / 64.18; }
.nav { display: flex; align-items: center; gap: clamp(1rem, 2vw, 2rem); margin-left: auto; }
.nav a { font-family: var(--f-display); font-weight: 700; font-size: 1.45rem; letter-spacing: .04em; text-transform: uppercase; text-decoration: none; line-height: 1; padding: .3rem 0; border-bottom: 2px solid transparent; }
.nav a:hover, .nav a[aria-current] { border-bottom-color: var(--ink); }
.nav .nav-cta { background: var(--ink); color: #fff; padding: .6rem 1rem .5rem; border: 1px solid var(--ink); }
.nav .nav-cta:hover { background: transparent; color: var(--ink); }
.bar-tools { display: flex; align-items: center; gap: 1rem; }
.lang { font-family: var(--f-mono); font-size: .75rem; letter-spacing: .06em; text-decoration: none; display: inline-flex; gap: .3rem; color: var(--mute); }
.lang .on { color: var(--ink); font-weight: 500; }
.lang:hover { color: var(--ink); }
.burger { display: none; width: 44px; height: 44px; background: none; border: 0; position: relative; cursor: pointer; padding: 0; }
.burger span:not(.sr) { position: absolute; left: 10px; right: 10px; height: 2px; background: var(--ink); transition: transform .25s, top .25s; }
.burger span:nth-child(1) { top: 17px; } .burger span:nth-child(2) { top: 25px; }
.nav-open .burger span:nth-child(1) { top: 21px; transform: rotate(45deg); }
.nav-open .burger span:nth-child(2) { top: 21px; transform: rotate(-45deg); }
@media (max-width: 1080px) {
  .burger { display: block; }
  .nav { position: fixed; inset: calc(var(--header-h) + env(safe-area-inset-top, 0px)) 0 0 0; background: var(--black); flex-direction: column; align-items: flex-start; justify-content: flex-start; gap: 0; padding: 1.5rem var(--gutter) 2rem; margin: 0; overflow-y: auto; transform: translateY(-8px); opacity: 0; visibility: hidden; transition: opacity .2s, transform .2s, visibility .2s; }
  .nav-open .nav { opacity: 1; transform: none; visibility: visible; }
  .nav a { color: #fff; font-size: 2.6rem; padding: .7rem 0; width: 100%; border-bottom: 1px solid rgba(255,255,255,.14); }
  .nav a:hover, .nav a[aria-current] { border-bottom-color: #fff; }
  .nav .nav-cta { margin-top: 1.5rem; background: #fff; color: var(--ink); text-align: center; border: 1px solid #fff; padding: 1rem; font-size: 1.9rem; }
  .nav-open { overflow: hidden; }
}

/* ---------- hero ---------- */
.hero { position: relative; background: var(--black); color: #fff; overflow: hidden; }
.hero-photo { position: absolute; inset: 0; background-size: cover; background-position: center; opacity: .5; }
.hero-photo::after { content: ''; position: absolute; inset: 0; background: linear-gradient(90deg, var(--black) 8%, rgba(13,13,12,.55)); }
.hero-grid { position: relative; display: grid; gap: 2rem; padding-block: clamp(3rem, 7vw, 6rem) clamp(2rem, 4vw, 3rem); align-items: center; }
@media (min-width: 900px) { .hero-grid { grid-template-columns: 1.15fr .85fr; } }
.hero .eyebrow { color: rgba(255,255,255,.62); }
.hero h1 { font-size: clamp(3.2rem, 6.8vw, 7rem); line-height: .9; max-width: 14ch; }
.hero-sub { font-size: clamp(1.1rem, 1.6vw, 1.4rem); max-width: 34ch; color: rgba(255,255,255,.78); margin: 1.6rem 0 2rem; line-height: 1.45; }
.hero-cta { display: flex; flex-wrap: wrap; gap: .8rem; }
.hero-art { position: relative; color: rgba(255,255,255,.62); }
.schematic { width: 100%; height: auto; display: block; max-height: 560px; }
.schematic .ln, .schematic .ln-d, .schematic .air { fill: none; stroke: #fff; stroke-width: 1.3; stroke-linecap: square; stroke-linejoin: miter; }
.schematic .ln-d { stroke-opacity: .28; }
.schematic .ln { stroke-opacity: .92; }
.schematic .air { stroke-opacity: .7; stroke-dasharray: 3 8; }
.schematic .tag { font-family: var(--f-mono); font-size: 10.5px; letter-spacing: .04em; fill: rgba(255,255,255,.66); }
.hero-index { position: relative; display: grid; gap: 0; grid-template-columns: repeat(3, 1fr); padding-block: 0; }
.hero-index > div { padding: 1.1rem 1rem 1.3rem 0; border-top: 1px solid rgba(255,255,255,.18); }
.hero-index > div + div { padding-left: 1rem; border-left: 1px solid rgba(255,255,255,.18); }
.hero-index p { margin: .25rem 0 0; font-size: .95rem; color: rgba(255,255,255,.85); }
.hero-index .mono { color: rgba(255,255,255,.55); text-transform: uppercase; letter-spacing: .08em; font-size: .7rem; }
@media (max-width: 700px) { .hero-index { grid-template-columns: 1fr; } .hero-index > div + div { padding-left: 0; border-left: 0; border-top: 1px solid rgba(255,255,255,.18); } }

@media (prefers-reduced-motion: no-preference) {
  .schematic .draw > * { animation: draw 1.7s cubic-bezier(.4, 0, .2, 1) both; }
  .schematic .draw > *:nth-child(3n) { animation-delay: .25s; }
  .schematic .draw > *:nth-child(3n+1) { animation-delay: .5s; }
  .schematic .draw > *:nth-child(5n) { animation-delay: .8s; }
  .schematic .air { animation: flow 2.2s linear infinite; }
}
@keyframes draw { from { stroke-dasharray: 1400; stroke-dashoffset: 1400; } to { stroke-dasharray: 1400; stroke-dashoffset: 0; } }
@keyframes flow { to { stroke-dashoffset: -22; } }

/* ---------- sections ---------- */
.sec { padding-block: clamp(3.5rem, 7vw, 6.5rem); }
.sec-tone { background: var(--paper-2); }
.sec-dark { background: var(--black); color: #fff; }
.sec-dark .eyebrow { color: rgba(255,255,255,.6); }
.sec-dark .lead { color: rgba(255,255,255,.75); }
.sec-head { margin-bottom: clamp(2rem, 4vw, 3.2rem); max-width: 900px; }
.sec-head h2 { margin-bottom: 1rem; }
.page-head { padding-block: clamp(3rem, 6vw, 5.5rem) clamp(1.5rem, 3vw, 2.5rem); border-bottom: 1px solid var(--line); }
.page-head h1 { max-width: 16ch; margin-bottom: 1.2rem; }
.page-head .lead { margin-bottom: 0; }
.two-col h2 { margin-bottom: 1rem; }
.two-col { display: grid; gap: clamp(2rem, 5vw, 5rem); }
@media (min-width: 900px) { .two-col { grid-template-columns: 1fr 1fr; } }

/* ---------- cards & media ---------- */
.grid { display: grid; gap: clamp(1.4rem, 2.5vw, 2.2rem); }
.grid-3 { grid-template-columns: repeat(auto-fill, minmax(min(100%, 320px), 1fr)); }
.card { border-top: 1px solid var(--ink); padding-top: 1rem; }
.card-link { display: block; text-decoration: none; }
.card-body { padding-top: 1rem; }
.card h3 { margin: .5rem 0 .6rem; }
.card p { color: var(--mute); font-size: .98rem; margin-bottom: .6rem; }
.card-link:hover h3 { text-decoration: underline; text-decoration-thickness: 2px; text-underline-offset: 5px; }
.card .meta { display: flex; flex-wrap: wrap; gap: .5rem; align-items: center; }
.media { position: relative; overflow: hidden; background: var(--paper-2); width: 100%; }
.media img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .6s ease; }
.card-link:hover .media img { transform: scale(1.03); }
.ratio-16x9 { aspect-ratio: 16 / 9; } .ratio-4x3 { aspect-ratio: 4 / 3; } .ratio-21x9 { aspect-ratio: 21 / 9; }
@media (max-width: 700px) { .ratio-21x9 { aspect-ratio: 16 / 9; } }
.ph { background: var(--ink) repeating-linear-gradient(135deg, rgba(255,255,255,.05) 0 1px, transparent 1px 14px); display: grid; place-items: center; color: rgba(255,255,255,.2); }
.ph-mark { width: 22%; min-width: 46px; height: auto; aspect-ratio: 1; }
.brand-name { font-family: var(--f-mono); font-size: .75rem; letter-spacing: .07em; text-transform: uppercase; font-weight: 500; }
.brand-logo { height: 22px; width: auto; display: inline-block; vertical-align: middle; }
.chip { font-family: var(--f-mono); font-size: .68rem; letter-spacing: .07em; text-transform: uppercase; border: 1px solid var(--line-strong); padding: .12rem .45rem; line-height: 1.4; }
.chip-demo { border-style: dashed; color: var(--mute); }
.meta-line { display: flex; flex-wrap: wrap; gap: .8rem 1rem; align-items: center; margin: 0; }

/* ---------- ruled grid (services) ---------- */
.ruled { display: grid; grid-template-columns: 1fr; border-top: 1px solid var(--ink); }
@media (min-width: 640px) { .ruled { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 980px) { .ruled { grid-template-columns: repeat(3, 1fr); } }
.ruled-cell { display: block; padding: 1.8rem 1.6rem 2rem; text-decoration: none; border-bottom: 1px solid var(--ink); transition: background .2s, color .2s; }
@media (min-width: 640px) { .ruled-cell:nth-child(2n) { border-left: 1px solid var(--ink); } }
@media (min-width: 980px) { .ruled-cell:nth-child(2n) { border-left: 0; } .ruled-cell:not(:nth-child(3n+1)) { border-left: 1px solid var(--ink); } }
.ruled-cell h3 { font-size: clamp(2rem, 3vw, 2.6rem); margin-bottom: .8rem; }
.ruled-cell p { color: var(--mute); margin-bottom: 1rem; max-width: 34ch; }
.ruled-cell .mono { color: var(--ink); }
.ruled-cell:hover { background: var(--ink); color: #fff; }
.ruled-cell:hover p { color: rgba(255,255,255,.72); } .ruled-cell:hover .mono { color: #fff; }

/* ---------- process ---------- */
.steps { list-style: none; margin: 0; padding: 0; display: grid; gap: 1.6rem; grid-template-columns: repeat(2, 1fr); }
@media (min-width: 700px) { .steps { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 1100px) { .steps { grid-template-columns: repeat(6, 1fr); } }
.steps li { border-top: 1px solid var(--ink); padding-top: 1rem; }
.steps h3 { margin: .3rem 0 .6rem; }
.steps p { color: var(--mute); font-size: .95rem; margin: 0; }
.step-n { font-size: .8rem; letter-spacing: .08em; color: var(--mute); }
.steps-long { list-style: none; margin: 0; padding: 0; }
.steps-long li { display: grid; gap: .4rem 2rem; padding: 2.2rem 0; border-bottom: 1px solid var(--line-strong); }
@media (min-width: 800px) { .steps-long li { grid-template-columns: 90px 1fr 1.1fr; align-items: start; } .steps-long .value { grid-column: 3; } .steps-long p:not(.value) { grid-column: 3; } .steps-long h2 { grid-column: 2; grid-row: 1 / span 2; } .steps-long .step-n { grid-row: 1 / span 2; } }
.steps-long h2 { font-size: clamp(2.4rem, 4vw, 3.6rem); }
.steps-long .value { margin: 0; color: var(--ink); }
.steps-long .value .eyebrow { display: block; margin-bottom: .2rem; }

/* ---------- industries ---------- */
.ind-list { list-style: none; margin: 0; padding: 0; border-top: 1px solid rgba(255,255,255,.22); }
.ind-list a { display: flex; justify-content: space-between; align-items: baseline; gap: 1rem; padding: 1.1rem 0; border-bottom: 1px solid rgba(255,255,255,.22); text-decoration: none; transition: padding-left .25s, background .25s; }
.ind-list a span:first-child { font-family: var(--f-display); font-weight: 800; text-transform: uppercase; font-size: clamp(2rem, 4vw, 3.4rem); line-height: 1; }
.ind-list .mono { color: rgba(255,255,255,.55); text-align: right; max-width: 46ch; line-height: 1.4; }
.ind-list a:hover { padding-left: 1rem; background: rgba(255,255,255,.05); }
@media (max-width: 700px) { .ind-list .mono { display: none; } }
.ind-detail { border-top: 1px solid var(--ink); }
.ind-row { display: grid; gap: 1rem 2.5rem; padding: 2.2rem 0; border-bottom: 1px solid var(--line-strong); scroll-margin-top: calc(var(--header-h) + 16px); }
@media (min-width: 900px) { .ind-row { grid-template-columns: 1fr 1fr 1fr; } }
.ind-row p { margin: 0 0 .8rem; }
.ind-row .eyebrow { margin-bottom: .5rem; }

/* ---------- brands, why, stats ---------- */
.brand-wall { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: .4rem 1.6rem; align-content: center; }
.brand-wall li { font-family: var(--f-display); font-weight: 800; text-transform: uppercase; font-size: clamp(2rem, 3.6vw, 3rem); line-height: 1.05; }
.brand-wall li:not(:last-child)::after { content: '/'; margin-left: 1.6rem; color: var(--line-strong); font-weight: 400; }
.partner-list { border-top: 1px solid var(--ink); }
.partner { display: grid; gap: .3rem 1.5rem; padding: 1.4rem 0; border-bottom: 1px solid var(--line-strong); }
@media (min-width: 700px) { .partner { grid-template-columns: 1fr 1fr; } .partner .notice, .partner a.link-arrow { grid-column: 1 / -1; } }
.partner h3 { margin-bottom: .2rem; }
.partner p { margin: 0; }
.notice { margin-top: .6rem; color: var(--mute); }
.notice p { margin: 0; }
.why { display: grid; gap: 2rem; grid-template-columns: repeat(auto-fit, minmax(min(100%, 240px), 1fr)); margin-bottom: 4rem; }
.why-item { border-top: 1px solid var(--ink); padding-top: 1rem; }
.why-item h3 { margin-bottom: .7rem; }
.why-item p { color: var(--mute); margin: 0; }
.stats { display: grid; gap: 2rem; grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr)); border-top: 1px solid var(--ink); padding-top: 2rem; }
.stat-n { display: block; font-family: var(--f-display); font-weight: 800; font-size: clamp(4.5rem, 10vw, 8rem); line-height: .85; font-variant-numeric: tabular-nums; }
.stat-l { display: block; margin-top: .6rem; max-width: 26ch; color: var(--mute); font-size: .95rem; }

/* ---------- lists: services / tags / checks ---------- */
.svc-list { border-top: 1px solid var(--ink); }
.svc { display: grid; gap: 1rem 2rem; padding: 2rem 0; border-bottom: 1px solid var(--ink); text-decoration: none; align-items: center; transition: padding .25s, background .25s; }
@media (min-width: 900px) { .svc { grid-template-columns: 1fr 1.1fr 40px; } .svc:hover { padding-inline: 1.2rem; background: var(--paper-2); } }
.svc h2 { font-size: clamp(2.2rem, 4vw, 3.4rem); margin-bottom: .5rem; }
.svc p { margin: 0; color: var(--mute); max-width: 44ch; }
.svc .arrow { font-family: var(--f-mono); font-size: 1.4rem; justify-self: end; }
.tags { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: .4rem; }
.tags li { font-family: var(--f-mono); font-size: .75rem; letter-spacing: .04em; border: 1px solid var(--line-strong); padding: .3rem .6rem; line-height: 1.3; }
.tags li a { text-decoration: none; }
.tags.big li { font-size: .85rem; padding: .5rem .8rem; }
.pill-row { display: flex; flex-wrap: wrap; gap: .5rem; margin-top: .5rem; }
.pill { font-family: var(--f-mono); font-size: .75rem; letter-spacing: .06em; text-transform: uppercase; padding: .5rem .9rem; border: 1px solid var(--ink); background: transparent; color: var(--ink); cursor: pointer; text-decoration: none; line-height: 1.2; }
.pill:hover, .pill.on { background: var(--ink); color: #fff; }
.filters { display: flex; flex-wrap: wrap; gap: .5rem; margin-bottom: 2rem; }
.check, ul.plain { list-style: none; margin: 0 0 1.4rem; padding: 0; }
.check li { display: grid; grid-template-columns: 1.6rem 1fr; gap: .2rem; padding: .3rem 0; }
.check li::before { content: ''; width: .9rem; height: 2px; background: var(--ink); margin-top: .85em; }
label.check { display: grid; grid-template-columns: 1.6rem 1fr; gap: .4rem; align-items: start; cursor: pointer; padding: 0; }
label.check::before { display: none; }
ul.plain li { padding: .1rem 0; }

/* ---------- prose / facts ---------- */
.prose { max-width: 68ch; }
.prose h2 { font-size: clamp(1.9rem, 3vw, 2.6rem); margin: 2.2rem 0 .9rem; }
.prose h2:first-child, .prose h3:first-child { margin-top: 0; }
.prose h3 { margin: 1.6rem 0 .6rem; }
.prose ul:not(.check):not(.tags):not(.plain):not(.doc-list) { padding-left: 1.2rem; }
.prose li { margin-bottom: .3rem; }
.proj-grid { display: grid; gap: 2.4rem 4rem; }
@media (min-width: 900px) { .proj-grid { grid-template-columns: 340px 1fr; } .spec { position: sticky; top: calc(var(--header-h) + 24px); align-self: start; } }
.proj-cover { padding-top: 2rem; }
.facts { margin: 0; display: grid; grid-template-columns: 1fr; border-top: 1px solid var(--ink); }
.facts dt { font-family: var(--f-mono); font-size: .7rem; letter-spacing: .08em; text-transform: uppercase; color: var(--mute); padding-top: .9rem; }
.facts dd { margin: 0; padding: .2rem 0 .9rem; border-bottom: 1px solid var(--line); }
.doc-list { list-style: none; padding: 0; margin: 0; }
.doc-list li { padding: .5rem 0; border-bottom: 1px solid var(--line); }
.gallery { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fill, minmax(min(100%, 260px), 1fr)); }
.gallery a { display: block; }
.archive { margin-top: 3rem; border-top: 1px solid var(--line-strong); padding-top: 1rem; }
.archive summary { cursor: pointer; font-family: var(--f-mono); font-size: .8rem; letter-spacing: .06em; text-transform: uppercase; }
.archive-list { list-style: none; padding: 0; margin: 1rem 0 0; }
.archive-list li { display: flex; justify-content: space-between; gap: 1rem; padding: .6rem 0; border-bottom: 1px solid var(--line); color: var(--mute); }

/* ---------- downloads ---------- */
.mat-group { margin-bottom: 3rem; }
.mat-group h2 { font-size: clamp(2rem, 3.4vw, 3rem); margin-bottom: 1rem; }
.mat-list { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--ink); }
.mat-row { display: flex; justify-content: space-between; align-items: center; gap: 1.5rem; padding: 1.2rem 0; border-bottom: 1px solid var(--line-strong); flex-wrap: wrap; }
.mat-row h3 { font-size: 1.9rem; margin: .25rem 0; }
.mat-row p { margin: 0; }

/* ---------- CTA band + footer ---------- */
.cta-band { background: var(--black); color: #fff; padding-block: clamp(3.5rem, 7vw, 6rem); }
.cta-inner h2 { font-size: clamp(3rem, 8vw, 7rem); max-width: 14ch; margin-bottom: 1.2rem; line-height: .9; }
.cta-inner p { color: rgba(255,255,255,.75); max-width: 50ch; font-size: 1.15rem; }
.cta-row { display: flex; flex-wrap: wrap; gap: .8rem; margin-top: 1.6rem; }
.site-footer { background: var(--black); color: #fff; border-top: 1px solid rgba(255,255,255,.14); padding-block: clamp(3rem, 5vw, 4.5rem) 2rem; }
.foot-top { display: flex; align-items: flex-end; justify-content: space-between; flex-wrap: wrap; gap: 1.5rem; margin-bottom: 3rem; }
.foot-mark { width: min(340px, 60vw); height: auto; aspect-ratio: 141.56 / 41.32; color: #fff; }
.foot-line { font-family: var(--f-display); font-weight: 700; font-size: 1.6rem; text-transform: uppercase; letter-spacing: .05em; margin: 0; color: rgba(255,255,255,.75); }
.foot-grid { display: grid; gap: 2rem; grid-template-columns: repeat(auto-fit, minmax(min(100%, 220px), 1fr)); border-top: 1px solid rgba(255,255,255,.18); padding-top: 2rem; }
.site-footer .eyebrow { color: rgba(255,255,255,.5); }
.site-footer p { font-size: .95rem; color: rgba(255,255,255,.85); }
.site-footer .muted { color: rgba(255,255,255,.55); }
.foot-links { list-style: none; margin: 0; padding: 0; }
.foot-links li { margin-bottom: .4rem; }
.foot-links a, .site-footer p a { text-decoration: none; }
.foot-links a:hover, .site-footer p a:hover { text-decoration: underline; }
.social { display: flex; gap: 1rem; flex-wrap: wrap; }
.foot-legal { margin-top: 3rem; padding-top: 1.4rem; border-top: 1px solid rgba(255,255,255,.14); display: grid; gap: .4rem; }
.foot-legal p { margin: 0; font-size: .82rem; color: rgba(255,255,255,.55); }

/* ---------- forms ---------- */
.contact-grid { display: grid; gap: 3rem 5rem; }
@media (min-width: 960px) { .contact-grid { grid-template-columns: 1.5fr 1fr; } }
.form { display: grid; gap: 1.3rem; }
.f-row { display: grid; gap: 1.3rem; }
@media (min-width: 640px) { .f-row { grid-template-columns: 1fr 1fr; } }
.f { display: block; min-width: 0; border: 0; padding: 0; margin: 0; }
.f label:not(.check), .f legend { display: block; font-family: var(--f-mono); font-size: .72rem; letter-spacing: .08em; text-transform: uppercase; color: var(--mute); margin-bottom: .4rem; padding: 0; }
.f input:not([type=checkbox]):not([type=file]), .f select, .f textarea { width: 100%; font: inherit; color: var(--ink); background: #fff; border: 1px solid var(--line-strong); border-radius: 0; padding: .8rem .9rem; min-height: 48px; }
.f textarea { resize: vertical; }
.f input:focus, .f select:focus, .f textarea:focus { outline: 2px solid var(--ink); outline-offset: 0; }
.f input[type=file] { font: inherit; font-size: .9rem; width: 100%; padding: .6rem; background: #fff; border: 1px dashed var(--line-strong); }
.checks { display: grid; gap: .4rem 1.2rem; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); }
input[type=checkbox] { width: 1.15rem; height: 1.15rem; accent-color: var(--ink); margin-top: .3rem; }
.hint { font-size: .8rem; color: var(--mute); margin: .4rem 0 0; }
.field-err { color: #a3241b; font-size: .85rem; margin: .4rem 0 0; }
.err-box, .ok-box { padding: 1.2rem 1.4rem; border: 1px solid var(--ink); margin-bottom: 1.4rem; }
.err-box { border-color: #a3241b; color: #a3241b; }
.err-box p, .ok-box p { margin: 0; }
.ok-box h2 { font-size: 2.4rem; margin-bottom: .6rem; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.contact-side h2 { font-size: clamp(2.2rem, 3.4vw, 3rem); margin-bottom: 1rem; }
.contact-side h3.eyebrow { margin-top: 1.6rem; font-family: var(--f-mono); font-size: .72rem; line-height: 1.4; }
.big-link { font-family: var(--f-display); font-weight: 700; font-size: 2.1rem; text-decoration: none; line-height: 1.15; }
.big-link:hover { text-decoration: underline; }

/* ---------- lightbox ---------- */
.lb { position: fixed; inset: 0; background: rgba(13,13,12,.94); z-index: 200; display: grid; place-items: center; padding: 2rem; cursor: zoom-out; }
.lb img { max-width: min(96vw, 1600px); max-height: 90vh; object-fit: contain; }

@media print { .site-header, .cta-band, .site-footer, .burger { display: none; } }

/* project card system tags */
.card-tags { display: flex; flex-wrap: wrap; gap: .35rem; margin: .75rem 0 0; padding: 0; }
.card-tags span { font: 500 .66rem/1 var(--f-mono); letter-spacing: .06em; text-transform: uppercase; padding: .3rem .45rem; border: 1px solid var(--line-strong); color: var(--ink); }

/* mobile menu: backdrop-filter would make the fixed .nav relative to the header — drop it while open */
.nav-open .site-header { backdrop-filter: none; -webkit-backdrop-filter: none; background: var(--paper); }

/* manufacturer news feed (partner pages) */
.feed-list { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--ink); }
.feed-item { padding: 1.2rem 0; border-bottom: 1px solid var(--line-strong); display: grid; gap: .3rem; }
.feed-item h3 { margin: 0; font-size: 1.9rem; }
.feed-item h3 a { text-decoration: none; }
.feed-item h3 a:hover { text-decoration: underline; text-decoration-thickness: 2px; text-underline-offset: 5px; }
.feed-item p { margin: 0; color: var(--mute); max-width: 70ch; }