/* ARTSAN site layout. Colours only through semantic tokens; components come from components.css (.ar-*). */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bordo);color:var(--white);font-family:var(--font-sans);font-size:16px;line-height:1.65;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img,svg{display:block;max-width:100%}
a{color:inherit}
p{margin:0}
h1,h2,h3,h4{margin:0;font-weight:inherit}
ul,ol{margin:0;padding:0;list-style:none}

.skip-link{position:absolute;left:-9999px;top:0;z-index:100;padding:var(--space-3) var(--space-4);background:var(--tarcin);color:var(--night);font-weight:600}
.skip-link:focus{left:var(--space-4);top:var(--space-4)}
.vh{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* Grounds and container */
.sec{background:var(--ground);color:var(--text);padding-block:var(--section-y)}
.sec--tight{padding-block:var(--space-24)}
.sec--flush{padding-block:0}
.sec--raised{background:var(--ground-raised)}
.wrap{width:100%;max-width:calc(var(--container-max) + 2 * var(--gutter-lg));margin-inline:auto;padding-inline:var(--gutter-lg)}
.stack{display:grid;gap:var(--space-8)}
.stack--lg{gap:var(--space-16)}
.row-actions{display:flex;flex-wrap:wrap;gap:var(--space-4)}
.rule{height:1px;background:var(--line);border:0;margin:0}

/* Type roles (tokens.json type groups) */
.t-display-xl{font-family:var(--font-display);font-weight:400;font-size:88px;line-height:.98;letter-spacing:-.005em;text-wrap:balance}
.t-display-l{font-family:var(--font-display);font-weight:400;font-size:60px;line-height:1.04;text-wrap:balance}
.t-figure{font-weight:300;font-size:56px;line-height:1;letter-spacing:.01em;font-variant-numeric:lining-nums}
.t-headline-xl{font-weight:300;font-size:44px;line-height:1.14;letter-spacing:.06em;text-transform:uppercase;text-wrap:balance}
.t-headline-l{font-weight:300;font-size:32px;line-height:1.2;letter-spacing:.05em;text-transform:uppercase;text-wrap:balance}
.t-headline-m{font-weight:500;font-size:20px;line-height:1.35;letter-spacing:.02em;text-transform:uppercase}
.t-kicker{font-weight:500;font-size:14px;line-height:1.35;letter-spacing:.02em;text-transform:uppercase;color:var(--accent-text)}
.t-label{font-weight:600;font-size:12px;line-height:1.3;letter-spacing:.14em;text-transform:uppercase}
.t-lede{font-size:19px;line-height:1.6;color:var(--text-muted);max-width:var(--measure)}
.t-body{font-size:16px;line-height:1.65;max-width:var(--measure)}
.t-small{font-size:14px;line-height:1.55}
.c-accent{color:var(--accent)}
.c-accent-text{color:var(--accent-text)}
.c-muted{color:var(--text-muted)}
.prose{display:grid;gap:var(--space-6);max-width:var(--measure)}
.prose p{font-size:17px;line-height:1.7}

/* Nav: sticky, raised once scrolled */
.site-head{position:sticky;top:0;z-index:50}
.site-head .ar-nav{transition:background-color .2s}
.site-head.is-scrolled .ar-nav{background:var(--ground-raised)}
.ar-nav__brand img{height:26px}
.ar-nav__links a{white-space:nowrap}
.menu-panel{display:none}
@media (max-width:1080px){.ar-nav__links{gap:var(--space-4)}}
@media (max-width:980px){.ar-nav .ar-btn{display:none}}
@media (max-width:860px){
  .menu-panel{display:block;position:fixed;inset:80px 0 0 0;overflow-y:auto;background:var(--ground-raised);padding:var(--space-8) var(--gutter-sm) var(--space-16);transform:translateY(-8px);opacity:0;visibility:hidden;transition:opacity .2s,transform .2s,visibility 0s .2s}
  .menu-panel.is-open{opacity:1;visibility:visible;transform:none;transition:opacity .2s,transform .2s}
  .menu-panel a.menu-link{display:flex;justify-content:space-between;align-items:center;min-height:56px;border-bottom:1px solid var(--line);color:var(--text);text-decoration:none;font-weight:300;font-size:24px;letter-spacing:.05em;text-transform:uppercase}
  .menu-panel a.menu-link[aria-current="page"]{color:var(--accent)}
  .menu-panel .ar-btn{margin-top:var(--space-8)}
  body.menu-open{overflow:hidden}
}

/* Hero */
.hero{position:relative;overflow:hidden;background:var(--ground);color:var(--text)}
.hero__inner{position:relative;z-index:1;display:grid;align-content:center;gap:var(--space-8);min-height:min(820px,calc(100svh - 80px));padding-block:var(--space-24) var(--space-24)}
.hero__copy{display:grid;gap:var(--space-8);max-width:600px}
.hero__lockup{width:min(520px,100%);height:auto}
.hero__art{position:absolute;top:0;right:0;bottom:0;width:min(46vw,680px);pointer-events:none}
.hero__art svg{width:100%;height:100%}
.k-accent{fill:var(--accent)}.k-night{fill:var(--night)}.k-paper{fill:var(--paper)}.k-bordo{fill:var(--bordo)}
@media (max-width:960px){
  .hero__art{position:relative;width:100%;height:220px;inset:auto}
  .hero__inner{min-height:0;padding-block:var(--space-16) var(--space-12)}
}

/* Page head (inner pages) */
.page-head{padding-block:var(--space-24) var(--space-16)}
.page-head .ar-head{max-width:920px}
.crumbs{display:flex;flex-wrap:wrap;gap:var(--space-2);margin-bottom:var(--space-8);font-weight:600;font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--text-muted)}
.crumbs a{color:var(--accent-text);text-decoration:none}
.crumbs a:hover{text-decoration:underline}

/* Capacity band */
.figures{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:var(--space-12)}
.figures--3{grid-template-columns:repeat(3,minmax(0,1fr))}
@media (max-width:960px){.figures,.figures--3{grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--space-8)}}
@media (max-width:480px){.figures,.figures--3{grid-template-columns:1fr}}

/* Two-column split (kicker left, content right) */
.split{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,7fr);gap:var(--space-12) var(--space-16);align-items:start}
.split--even{grid-template-columns:repeat(2,minmax(0,1fr))}
@media (max-width:960px){.split,.split--even{grid-template-columns:1fr}}

/* Technique list header */
.tech-list{border-top:1px solid var(--line)}
.tech-list__head{display:flex;justify-content:space-between;gap:var(--space-4);padding-block:var(--space-3);border-bottom:1px solid var(--line);color:var(--text-muted)}
.ar-tech__img{background:var(--ground-raised)}

/* Technique detail */
.tech-hero{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,6fr);gap:var(--space-16);align-items:center}
.tech-hero__photo{margin:0;justify-self:start}
.tech-hero__photo img{width:auto;max-width:100%;max-height:640px;height:auto}
.tech-hero__photo figcaption{margin-top:var(--space-3);font-size:14px;color:var(--text-muted)}
@media (max-width:960px){.tech-hero{grid-template-columns:1fr;gap:var(--space-8)}.tech-hero__photo img{max-height:440px}}
.facts{display:grid;border-top:1px solid var(--line)}
.facts div{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,2fr);gap:var(--space-6);padding-block:var(--space-4);border-bottom:1px solid var(--line)}
.facts dt{font-weight:600;font-size:12px;line-height:1.5;letter-spacing:.14em;text-transform:uppercase;color:var(--accent-text);padding-top:2px}
.facts dd{margin:0;font-size:16px;line-height:1.6}
@media (max-width:560px){.facts div{grid-template-columns:1fr;gap:var(--space-1)}}
.pager{display:grid;grid-template-columns:1fr 1fr;border-top:1px solid var(--line)}
.pager a{display:grid;gap:var(--space-2);padding-block:var(--space-8);text-decoration:none;color:var(--text)}
.pager a + a{text-align:right;border-left:1px solid var(--line);padding-left:var(--space-6)}
.pager .t-label{color:var(--accent-text)}
.pager a:hover .t-headline-m{color:var(--accent-text)}

/* Lists in columns */
.cols{columns:3 220px;column-gap:var(--space-12)}
.cols li{break-inside:avoid;padding-block:var(--space-3);border-bottom:1px solid var(--line);font-size:16px}
.steps{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));border-top:1px solid var(--line)}
.steps li{display:grid;gap:var(--space-3);align-content:start;padding:var(--space-6) var(--space-6) var(--space-8) 0;border-bottom:1px solid var(--line)}
.steps li:not(:nth-child(5n+1)){padding-left:var(--space-6);border-left:1px solid var(--line)}
.steps .n{font-weight:300;font-size:32px;line-height:1;color:var(--accent);font-variant-numeric:lining-nums}
@media (max-width:960px){.steps{grid-template-columns:repeat(2,minmax(0,1fr))}.steps li:not(:nth-child(5n+1)){padding-left:0;border-left:0}.steps li:nth-child(even){padding-left:var(--space-6);border-left:1px solid var(--line)}}
.trio{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--space-12);border-top:1px solid var(--line);padding-top:var(--space-8)}
.trio > *{display:grid;gap:var(--space-4);align-content:start}
@media (max-width:960px){.trio{grid-template-columns:1fr;gap:var(--space-8)}}

/* Statement block (display serif) */
.statement{display:grid;gap:var(--space-8);max-width:1040px}

/* Map */
.map{margin:0}
.map img{width:100%;height:auto}
.map figcaption{margin-top:var(--space-3);font-size:14px;color:var(--text-muted)}

/* Paper sub-brand */
.sub-lockup{display:flex;align-items:center;gap:var(--space-4)}
.sub-lockup img{height:34px;width:auto}
.sub-lockup__rule{width:1px;align-self:stretch;background:var(--line-strong)}
.sub-lockup__name{font-weight:600;font-size:18px;line-height:1;letter-spacing:.32em;text-transform:uppercase;color:var(--accent)}
.note{display:flex;gap:var(--space-3);align-items:baseline;padding:var(--space-3) var(--space-4);border:1px solid var(--line-strong);font-size:14px;line-height:1.5;max-width:var(--measure)}
.note .t-label{flex:none;color:var(--accent-text)}
.gallery{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--space-6)}
.gallery figure{margin:0;display:grid;gap:var(--space-3)}
.gallery img{width:100%;aspect-ratio:4/5;object-fit:cover}
.gallery figcaption{font-size:14px;line-height:1.5}
@media (max-width:860px){.gallery{grid-template-columns:1fr}}
.range{display:grid;border-top:1px solid var(--line)}
.range li{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,7fr);gap:var(--space-8);padding-block:var(--space-8);border-bottom:1px solid var(--line)}
@media (max-width:760px){.range li{grid-template-columns:1fr;gap:var(--space-3)}}

/* Quote form */
.form-panel{background:var(--ground-raised);padding:var(--space-12)}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--space-8) var(--space-12)}
.form-grid .full{grid-column:1/-1}
@media (max-width:760px){.form-panel{padding:var(--space-8) var(--gutter-sm)}.form-grid{grid-template-columns:1fr}}
select.ar-field__input{appearance:none;background-image:linear-gradient(45deg,transparent 50%,currentColor 50%),linear-gradient(135deg,currentColor 50%,transparent 50%);background-position:calc(100% - 14px) 55%,calc(100% - 9px) 55%;background-size:5px 5px;background-repeat:no-repeat;padding-right:32px}
select.ar-field__input option{color:#171615;background:#faf8f2}
textarea.ar-field__input{min-height:132px;resize:vertical}
.check{display:flex;gap:var(--space-3);align-items:flex-start;font-size:14px;line-height:1.55}
.check input{width:22px;height:22px;margin:1px 0 0;flex:none;accent-color:var(--bordo)}
.form-status{margin-top:var(--space-6);padding:var(--space-4);border-left:2px solid var(--line-strong);font-size:16px}
.form-status[hidden]{display:none}

/* CTA */
.cta{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:var(--space-8);align-items:end}
@media (max-width:860px){.cta{grid-template-columns:1fr}}

/* Footer */
.site-foot{background:var(--ground-raised);color:var(--text);padding-block:var(--space-24) var(--space-12)}
.foot-grid{display:grid;grid-template-columns:minmax(0,5fr) repeat(3,minmax(0,2fr));gap:var(--space-12)}
.foot-grid h2{margin-bottom:var(--space-4);font-weight:600;font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--accent-text)}
.foot-grid li{padding-block:var(--space-1)}
.foot-grid a{text-decoration:none}
.foot-grid a:hover{text-decoration:underline;text-underline-offset:3px}
.foot-lockup{width:min(300px,100%);height:auto;margin-bottom:var(--space-8)}
.foot-legal{display:flex;flex-wrap:wrap;justify-content:space-between;gap:var(--space-4);margin-top:var(--space-16);padding-top:var(--space-6);border-top:1px solid var(--line);font-size:14px}
.foot-legal a{color:var(--accent-text)}
@media (max-width:960px){.foot-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.foot-grid > :first-child{grid-column:1/-1}}
@media (max-width:480px){.foot-grid{grid-template-columns:1fr}}

/* Reveal: resting state is visible; only JS-enabled pages animate in (never gated on timing) */
@media (prefers-reduced-motion:no-preference){
  .js .reveal{animation:rise .6s cubic-bezier(.2,.7,.2,1) both}
  @keyframes rise{from{opacity:.001;transform:translateY(12px)}to{opacity:1;transform:none}}
}

/* Phone sizes (README → Type) */
@media (max-width:860px){.wrap{padding-inline:var(--gutter-sm)}}
@media (max-width:640px){
  .sec{padding-block:var(--section-y-sm)}
  .sec--tight{padding-block:var(--space-16)}
  .t-display-xl{font-size:56px}.t-display-l{font-size:44px}.t-figure{font-size:44px}
  .t-headline-xl{font-size:30px}.t-headline-l{font-size:26px}.t-lede{font-size:17px}
  .page-head{padding-block:var(--space-16) var(--space-12)}
  .pager{grid-template-columns:1fr}.pager a + a{text-align:left;border-left:0;padding-left:0;border-top:1px solid var(--line)}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.menu-panel,.site-head .ar-nav{transition:none}}
@media print{.site-head,.menu-panel{display:none}.sec{padding-block:32px}}

/* Fixes after first render check */
[data-theme="night"] .map img{mix-blend-mode:lighten} /* map ground #060807 → blends into night #0b0704 */
@media (max-width:640px){.ar-partners{grid-template-columns:repeat(2,minmax(0,1fr));column-gap:var(--space-4)}.ar-partners li{font-size:12px;letter-spacing:.1em}}
.gallery img{height:auto} /* width/height attrs would otherwise pin the height and defeat aspect-ratio */