/* ==========================================================================
   krx theme - reconstruction of the last published krx.one appearance.

   Measurements taken from the original Kraft theme:
     container .wrap   max-width 1170px (970 / 750 at smaller breakpoints)
     header            logo left, menu right, uppercase, sticky
     project page      media 66.66% left, details 33.33% right, 50px gutter
     project title     38px / 44px, subtitle 20px
     body text         left aligned, full container width
   All design tokens live here; content files never carry styling.
   ========================================================================== */

:root {
  --ink: #000;
  --paper: #fff;
  --muted: #707070;
  --line: #e4e4e4;
  --accent: #dd3333;

  --font: 'Barlow', 'Helvetica Neue', Helvetica, 'Segoe UI', Arial, sans-serif;
  --w-body: 400;
  --w-med: 500;
  --w-bold: 600;

  --wrap: 1170px;            /* the original container width */
  --gap: 30px;               /* the original grid gap        */
  --gutter: 50px;            /* media / details gutter       */
  --pad: 15px;
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font);
  font-weight: var(--w-body);
  font-size: 17px;
  line-height: 1.65;
  text-align: left;
  font-synthesis-weight: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }

.wrap {
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--pad);
  width: 100%;
}

.skip { position: absolute; left: -9999px; top: 0; background: var(--ink);
        color: var(--paper); padding: .6rem 1rem; z-index: 100; }
.skip:focus { left: 0; }

/* ---------------------------------------------------------------- header */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: var(--paper);
  border-bottom: 1px solid var(--line);
}
.site-header .wrap {
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--gutter);
}

.brand { display: block; line-height: 0; padding: 25px 0 21px; flex: 0 0 auto; }
.brand .logo { width: 320px; height: auto; max-width: 100%; }

.site-nav { display: flex; flex-wrap: wrap; gap: 1.9rem; justify-content: flex-end; }
.site-nav a {
  text-decoration: none;
  text-transform: uppercase;
  font-weight: var(--w-med);
  font-size: .82rem;
  letter-spacing: 1px;
  color: var(--muted);
  padding: .35rem 0;
  transition: color .15s, font-weight .15s;
  white-space: nowrap;
}
.site-nav a:hover, .site-nav a:focus-visible { color: var(--ink); }
.site-nav a.is-active { color: var(--ink); font-weight: var(--w-bold); }

/* Reserve the bold width up front so switching weight never reflows the bar. */
.site-nav a::after {
  content: attr(data-label);
  display: block; height: 0; overflow: hidden; visibility: hidden;
  font-weight: var(--w-bold); pointer-events: none;
}

.nav-checkbox { position: absolute; opacity: 0; width: 0; height: 0;
                pointer-events: none; }
.nav-toggle {
  display: none;
  font-size: .8rem; font-weight: var(--w-med);
  text-transform: uppercase; letter-spacing: 1px;
  border: 1px solid var(--line); border-radius: 2px;
  padding: .4rem .7rem; cursor: pointer; color: var(--muted);
  user-select: none;
}
.nav-checkbox:focus-visible ~ .nav-toggle { outline: 2px solid var(--accent);
                                            outline-offset: 2px; }

/* ---------------------------------------------------------------- layout */
main { padding-block: 45px 70px; }

.page-head { margin-bottom: 34px; }
.page-head h1, .project-text h1 {
  font-size: 38px; line-height: 44px;
  font-weight: var(--w-med);
  margin: 0 0 2px;
}
.subtitle { margin: 0 0 0; font-size: 20px; line-height: 1.4; color: var(--muted); }
.project-text .subtitle { margin-bottom: 18px; }

/* ---------------------------------------------------------------- prose */
.prose { text-align: left; }
.prose > :first-child { margin-top: 0; }

.prose h2 {
  font-size: 1.35rem; font-weight: var(--w-bold);
  margin: 2.4rem 0 .7rem; line-height: 1.3;
}

/* h3 and everything deeper render identically on purpose: mis-nested
   headings can never make the page look broken. */
.prose h3, .prose h4, .prose h5, .prose h6 {
  font-size: 1.05rem; font-weight: var(--w-bold);
  margin: 1.9rem 0 .45rem; line-height: 1.35;
}

.prose p { margin: 0 0 1.1rem; }
.prose ul, .prose ol { margin: 0 0 1.1rem; padding-left: 1.25rem; }
.prose li { margin: .22rem 0; }
.prose li > ul, .prose li > ol { margin: .22rem 0; }

.prose a { color: var(--ink); text-decoration: underline;
           text-underline-offset: 2px; text-decoration-thickness: 1px;
           text-decoration-color: var(--muted); }
.prose a:hover { color: var(--accent); text-decoration-color: var(--accent); }

.prose hr { border: 0; border-top: 1px solid var(--line); margin: 2.4rem 0; }
.prose blockquote { margin: 1.4rem 0; padding-left: 1.1rem;
                    border-left: 2px solid var(--line); color: var(--muted); }
.prose code { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
              font-size: .88em; background: #f3f3f3; padding: .1em .35em; }
.prose pre { background: #f6f6f6; padding: 1rem; overflow-x: auto; }
.prose pre code { background: none; padding: 0; }

.md-figure { margin: 0 0 var(--gap); }
.md-figure img { width: 100%; }
.md-figure .zoom { display: block; cursor: zoom-in; }

/* -------------------------------------------------- click to enlarge
   Pure CSS. The small picture is a link to a hidden overlay; the overlay is
   shown only while it is the :target of the URL. Clicking it sets the hash to
   something that matches nothing, so it closes again. No JavaScript.        */
.lightbox {
  display: none;
  position: fixed; inset: 0; z-index: 200;
  background: rgba(0, 0, 0, .92);
  padding: 2.5vmin;
  align-items: center; justify-content: center;
}
.lightbox:target { display: flex; }
.lightbox > img {
  max-width: 100%; max-height: 95vh;
  width: auto; height: auto;
  object-fit: contain;
  cursor: zoom-out;
}
/* clicking anywhere on the darkened backdrop closes it again - no visible
   close button needed, and right-click > Save Image still works on the img */
.lightbox-close {
  position: absolute; inset: 0; cursor: zoom-out;
}
.md-figure figcaption, .md-figure em { color: var(--muted); font-size: .85rem; }

.md-broken-link { color: var(--muted); border-bottom: 1px dotted var(--muted); }
.md-missing-image {
  display: block; padding: 2rem 1rem; text-align: center; color: var(--muted);
  background: #f6f6f6; border: 1px dashed var(--line); font-size: .85rem;
}

.callout { margin: 1.4rem 0; padding: .9rem 1.1rem;
           border-left: 3px solid var(--muted); background: #f7f7f7; }
.callout-title { font-weight: var(--w-bold); margin-bottom: .3rem; }
.callout-warning, .callout-danger, .callout-caution { border-left-color: var(--accent); }

.tags { margin: 1.8rem 0 0; display: flex; flex-wrap: wrap; gap: .4rem; }
.tag { text-decoration: none; text-transform: uppercase; letter-spacing: 1px;
       font-size: .68rem; font-weight: var(--w-med); color: var(--muted);
       border: 1px solid var(--line); padding: .25rem .55rem; }
.tag:hover { color: var(--ink); border-color: var(--muted); }

.back { margin-top: 2.2rem; font-size: .78rem; text-transform: uppercase;
        letter-spacing: 1px; }
.back a { color: var(--muted); text-decoration: none; }
.back a:hover { color: var(--ink); }

/* ------------------------------------------------- project: media + text */
.project.has-media {
  display: grid;
  grid-template-columns: 66.66% 33.34%;
  align-items: start;
}
.project.has-media .project-text { padding-left: var(--gutter); }
.project.has-media .project-media { min-width: 0; }

/* the media column holds only imagery, so drop its section headings */
.project-media h2 { position: absolute; width: 1px; height: 1px;
                    overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.project-media .prose, .project-media > * { margin-top: 0; }
.project-media ul { list-style: none; margin: 0 0 var(--gap); padding: 0; }
.project-media li { margin: 0 0 .4rem; }

/* videos linked in the media column */
.project-media a { color: var(--muted); font-size: .9rem; }

/* ---------------------------------------------------------------- home */
.intro { margin: 0 0 42px; text-align: left; }
.intro p:last-child { margin-bottom: 0; }

/* the radio inputs that drive the CSS-only category filter */
.cat-radio { position: absolute; opacity: 0; width: 0; height: 0;
             pointer-events: none; }

.filters { display: flex; flex-wrap: wrap; gap: 1.4rem; margin: 0 0 32px; }
.filters label {
  position: relative;
  cursor: pointer; user-select: none;
  text-transform: uppercase; letter-spacing: 1px;
  font-size: .8rem; font-weight: var(--w-med); color: var(--muted);
  padding: .3rem 0;
  transition: color .15s;
}
/* same width-reservation trick, so the bar does not jump when bolding */
.filters label::after {
  content: attr(data-label);
  display: block; height: 0; overflow: hidden; visibility: hidden;
  font-weight: var(--w-bold); pointer-events: none;
}
.filters label:hover { color: var(--ink); }
.cat-radio:focus-visible ~ .filters label { outline: 2px solid var(--accent);
                                            outline-offset: 3px; }

/* -------------------------------------------------- bento / masonry grid
   Equal column width, every tile keeps its own height, no cropping.
   CSS multi-column packs the tiles with no gaps and needs no JavaScript. */
.grid {
  list-style: none; margin: 0; padding: 0;
  columns: 3;
  column-gap: var(--gap);
}

.tile {
  break-inside: avoid;
  -webkit-column-break-inside: avoid;
  page-break-inside: avoid;
  margin: 0 0 var(--gap);
  display: block;
}
.tile.is-hidden { display: none; }

.tile > a { display: block; text-decoration: none; color: inherit; }
/* Both the link and the image default to being natively draggable in every
   browser (you can normally drag a picture out to your desktop). That native
   gesture starts on pointerdown and swallows the event before our own
   pointer-based reorder script below ever sees it - which is what silently
   broke "click and drag anywhere on the tile". draggable="false" is set on
   both elements in the HTML (it does not inherit from a parent), and this
   -webkit- property is a belt-and-suspenders extra for Chrome/Safari. */
.tile > a, .tile img { -webkit-user-drag: none; }

/* the image keeps its natural aspect ratio - nothing is cropped */
.tile img {
  width: 100%; height: auto; display: block;
  background: #f2f2f2;
  transition: opacity .25s;
}
.tile > a:hover img { opacity: .82; }

/* Explicitly transparent (not just "unset") so that while a tile is being
   dragged over the others, its title/subtitle area never paints an opaque
   box over whatever is underneath. */
/* Explicitly transparent, not just left unset, on every element in this
   chain - <li>, its link, the caption block and both lines of text - so
   there is no possible spot for an opaque fill to sneak in from a browser
   default or an inherited value. */
.tile, .tile > a, .tile-body, .tile-title, .tile-sub { background: transparent; }
.tile-body { display: block; padding: .7rem 0 0; }
.tile-title { display: block; font-weight: var(--w-med); font-size: .97rem;
              line-height: 1.3; }
.tile-sub { display: block; margin-top: .15rem; color: var(--muted);
            font-size: .82rem; line-height: 1.4; }
.tile > a:hover .tile-title { color: var(--accent); }

/* drag-to-reorder (only if the optional script is loaded).
   iOS-style: the dragged tile lifts, the others glide out of its way. */
.tile { touch-action: manipulation; }
.tile.dragging {
  position: relative;
  z-index: 20;
  cursor: grabbing;
  box-shadow: 0 18px 40px -12px rgba(0, 0, 0, .35);
  will-change: transform;
}
.tile.dragging a { pointer-events: none; }
.tile.dragging img { opacity: 1; }

/* the grid animates its height while filtering */
.grid { will-change: height; }

/* ---------------------------------------------------------------- footer */
.site-footer { border-top: 1px solid var(--line); padding-block: 26px 34px; }
.site-footer .wrap {
  display: flex; flex-wrap: wrap; gap: 1rem 1.6rem;
  align-items: center; justify-content: space-between;
}
.footer-nav { display: flex; flex-wrap: wrap; gap: 1.4rem; }
.footer-nav a, .colophon {
  text-transform: uppercase; letter-spacing: 1px;
  font-size: .72rem; font-weight: var(--w-med); color: var(--muted);
  text-decoration: none;
}
.footer-nav a:hover { color: var(--ink); }
.colophon { margin: 0; }

/* ------------------------------------------------------- breakpoints */
@media (max-width: 1199px) { :root { --wrap: 970px; } }

@media (max-width: 991px) {
  :root { --wrap: 750px; --gutter: 30px; }
  .grid { columns: 2; }
  .project.has-media { grid-template-columns: 1fr; }
  .project.has-media .project-text { padding-left: 0; padding-top: 34px; }
  .project-media h2 { position: static; width: auto; height: auto;
                      clip: auto; overflow: visible; }
}

@media (max-width: 767px) {
  body { font-size: 16px; }
  .nav-toggle { display: block; }
  .site-header .wrap { flex-wrap: wrap; gap: 1rem; }
  .brand { padding: 16px 0 12px; }
  .brand .logo { width: 240px; }
  .site-nav { display: none; width: 100%; flex-direction: column;
              gap: .2rem; justify-content: flex-start; padding-bottom: .8rem; }
  .nav-checkbox:checked ~ .site-nav { display: flex; }
  .grid { columns: 1; }
  .page-head h1, .project-text h1 { font-size: 30px; line-height: 36px; }
  .subtitle { font-size: 18px; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}

/* ---------------------------------------------------------------- print */
@page { size: A4; margin: 18mm 16mm; }

@media print {
  .site-header, .site-footer, .filters, .back, .skip, .nav-toggle { display: none; }
  /* the enlarge overlay must never appear on paper */
  .lightbox, .lightbox:target { display: none !important; }
  body { font-size: 10.5pt; line-height: 1.45; color: #000; background: #fff; }
  main { padding: 0; }
  .wrap { max-width: none; padding: 0; }
  .project.has-media { display: block; }
  .project.has-media .project-text { padding-left: 0; }
  .project-media h2 { position: static; width: auto; height: auto;
                      clip: auto; overflow: visible; }
  .page-head h1, .project-text h1 { font-size: 20pt; line-height: 1.2; }
  .subtitle { font-size: 12pt; }
  .prose h2 { font-size: 13pt; }
  .prose h3, .prose h4, .prose h5, .prose h6 { font-size: 11pt; }
  .prose a { text-decoration: none; color: #000; }
  .prose a[href^="http"]::after {
    content: " (" attr(href) ")"; font-size: 8pt; color: #555;
    word-break: break-all;
  }
  .md-figure, .tile { break-inside: avoid; }
  .prose h2, .prose h3 { break-after: avoid; }
  .grid { columns: 2; }
  img { max-width: 100% !important; }
}

/* reset button for the optional drag-to-reorder script */
.reset-wrap { margin: 1.5rem 0 0; }
.reset-order {
  font: inherit; background: none; border: 0; cursor: pointer;
  text-transform: uppercase; letter-spacing: 1px;
  font-size: .75rem; font-weight: var(--w-med); color: var(--accent);
  padding: .3rem 0;
}
.reset-order[hidden] { display: none; }