/* =====================================================================
   ARFA DIGITAL CONSULTING — components
   ===================================================================== */

/* =====================================================================
   HEADER — centred wordmark, small pill groups at both corners
   ===================================================================== */
.site-header{
  position:sticky;top:0;z-index:100;
  background:color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--rule);
}
.header-inner{
  display:grid;grid-template-columns:1fr auto 1fr;align-items:center;
  gap:var(--s-4);min-height:var(--header-h);
}

.wordmark{
  grid-column:2;justify-self:center;text-align:center;
  font-family:var(--font-display);color:var(--ink);line-height:1.1;
}
.wordmark-name{
  display:block;font-size:15px;font-weight:300;
  letter-spacing:.24em;text-transform:uppercase;
}
.wordmark-sub{
  display:block;font-size:9px;font-weight:500;font-family:var(--font-body);
  letter-spacing:.3em;text-transform:uppercase;color:var(--ink-faint);
  margin-top:3px;
}

.pill-group{display:flex;gap:6px;align-items:center}
.pill-group--start{grid-column:1;justify-self:start}
.pill-group--end{grid-column:3;justify-self:end}

.pill{
  display:inline-flex;align-items:center;justify-content:center;
  padding:7px 14px;font-size:10px;font-weight:500;
  letter-spacing:.13em;text-transform:uppercase;color:var(--ink);
  background:color-mix(in srgb, var(--paper-raise) 80%, transparent);
  border:1px solid var(--rule);
  transition:background .25s var(--ease),border-color .25s var(--ease),color .25s var(--ease);
  white-space:nowrap;
}
.pill:hover{border-color:var(--ink)}
.pill[aria-current="page"],.pill.is-active{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.pill--solid{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.pill--solid:hover{background:transparent;color:var(--ink)}

@media (max-width:640px){
  .pill{padding:6px 12px;font-size:9px;letter-spacing:.1em}
  .wordmark-name{font-size:13px;letter-spacing:.2em}
}

/* =====================================================================
   MENU PANEL — slides in from the left
   ===================================================================== */
.menu-backdrop{
  position:fixed;inset:0;z-index:150;background:rgba(31,42,68,.3);
  opacity:0;visibility:hidden;transition:opacity .4s var(--ease),visibility .4s;
  backdrop-filter:blur(2px);
}
.menu-backdrop.is-open{opacity:1;visibility:visible}

.menu-panel{
  position:fixed;top:0;left:0;bottom:0;z-index:160;
  width:min(360px,86vw);background:var(--paper-raise);
  border-right:1px solid var(--rule);
  transform:translateX(-100%);transition:transform .45s var(--ease);
  display:flex;flex-direction:column;overflow-y:auto;
}
.menu-panel.is-open{transform:none}

.menu-head{
  display:flex;align-items:center;justify-content:space-between;
  padding:var(--s-5) var(--s-6);border-bottom:1px solid var(--rule);
}
.menu-close{
  width:34px;height:34px;display:grid;place-items:center;
  font-size:20px;line-height:1;color:var(--ink);
  border:1px solid var(--rule);transition:border-color .25s var(--ease);
}
.menu-close:hover{border-color:var(--ink)}

.menu-body{padding:var(--s-6);flex:1}
.menu-body > * + *{margin-top:var(--s-7)}

.menu-group-label{
  font-family:var(--font-display);font-style:italic;font-weight:300;
  font-size:var(--t-small);color:var(--ink-faint);
  padding-bottom:var(--s-3);margin-bottom:var(--s-4);
  border-bottom:1px dotted var(--rule-strong);
}
.menu-links{display:flex;flex-direction:column;gap:var(--s-3)}
.menu-links a{
  font-size:var(--t-small);color:var(--ink);width:max-content;
  border-bottom:1px solid transparent;padding-bottom:2px;
  transition:border-color .25s var(--ease);
}
.menu-links a:hover{border-bottom-color:var(--accent)}
.menu-links .note{color:var(--ink-faint);font-size:13px;max-width:34ch;margin-top:var(--s-1)}

.menu-foot{
  padding:var(--s-5) var(--s-6);border-top:1px solid var(--rule);
  background:var(--paper-deep);text-align:center;
}

/* =====================================================================
   HERO
   ===================================================================== */
.hero{position:relative;z-index:2;padding-block:clamp(72px,11vw,150px) clamp(56px,8vw,110px)}
/* 13ch suits English, but DATENINFRASTRUKTUR is 18 characters on its
   own — the cap would force a mid-word break. min-content is the width
   of the longest unbreakable word, so the line box grows to fit it and
   the cap applies only when the copy actually allows it. Purely
   declarative: no per-language override, and it holds for whatever the
   next translation turns out to be. */
.hero .display{max-width:13ch;min-width:min-content}
@media (max-width:560px){ .hero .display{max-width:none} }
.hero-lead{margin-top:var(--s-7)}

/* Facts strip — hairline separated, aligned to the grid */
.facts{
  margin-top:clamp(56px,8vw,104px);
  border-top:1px solid var(--rule);border-bottom:1px solid var(--rule);
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
}
.fact{padding:var(--s-5) 0 var(--s-5) var(--s-5);border-right:1px solid var(--rule)}
.fact:first-child{padding-left:0}
.fact:last-child{border-right:0}
.fact dt{font-size:var(--t-label);font-weight:500;letter-spacing:.14em;
  text-transform:uppercase;color:var(--ink-faint);margin-bottom:var(--s-2)}
.fact dd{margin:0;color:var(--ink);font-size:var(--t-small)}
.dot{
  display:inline-block;width:6px;height:6px;border-radius:50%;
  background:var(--accent);margin-right:var(--s-2);vertical-align:1px;
}
@media (max-width:720px){
  .facts{grid-template-columns:1fr}
  .fact{border-right:0;border-bottom:1px solid var(--rule);padding-left:0}
  .fact:last-child{border-bottom:0}
}

/* =====================================================================
   ACCORDION
   ===================================================================== */
.accordion{border-top:1px solid var(--rule)}
.accordion-item{border-bottom:1px solid var(--rule)}
.accordion-trigger{
  width:100%;display:flex;align-items:center;justify-content:space-between;
  gap:var(--s-5);padding:var(--s-5) 0;text-align:left;
  font-size:var(--t-label);font-weight:500;letter-spacing:.14em;
  text-transform:uppercase;color:var(--ink);
}
.accordion-trigger .icon{
  flex:none;width:20px;height:20px;position:relative;
}
.accordion-trigger .icon::before,
.accordion-trigger .icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--ink);
  transform:translate(-50%,-50%);transition:transform .35s var(--ease),opacity .35s var(--ease);
}
.accordion-trigger .icon::before{width:13px;height:1px}
.accordion-trigger .icon::after{width:1px;height:13px}
.accordion-trigger[aria-expanded="true"] .icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}

/* Open by default so the content is reachable without JavaScript; the
   .js class (set in <head>) collapses them before first paint. */
.accordion-panel{overflow:hidden;transition:height .4s var(--ease)}
.js .accordion-panel{height:0}
.accordion-panel > .inner{padding:0 0 var(--s-6)}
.accordion-panel p{max-width:56ch}
.accordion-panel .tags{margin-top:var(--s-4)}

/* =====================================================================
   PILL NAV — bottom sibling-page navigator
   ===================================================================== */
.pill-nav{
  display:flex;flex-wrap:wrap;gap:6px;justify-content:center;
  margin-top:clamp(56px,7vw,96px);
}

/* =====================================================================
   PROJECT / AFFILIATION ENTRIES
   ===================================================================== */
.entry-list{border-top:1px solid var(--rule)}
.entry{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.4fr);
  gap:var(--s-6) var(--gutter);
  padding-block:clamp(40px,5vw,72px);
  border-bottom:1px solid var(--rule);
}
.entry-aside > * + *{margin-top:var(--s-4)}
.entry-num{
  font-family:var(--font-display);font-size:clamp(40px,5vw,68px);
  font-weight:200;line-height:1;color:var(--ink);letter-spacing:.02em;
}
.entry-role{display:block}
.entry h3{margin-bottom:var(--s-3)}
.entry .kicker{
  font-family:var(--font-display);font-style:italic;font-weight:300;
  color:var(--ink-faint);font-size:var(--t-small);margin-bottom:var(--s-4);
}
.entry-body > * + *{margin-top:var(--s-4)}
.entry-foot{
  margin-top:var(--s-6);display:flex;align-items:center;
  justify-content:space-between;gap:var(--s-5);flex-wrap:wrap;
}
.tags{display:flex;flex-wrap:wrap;gap:var(--s-2)}

/* An entry with nothing to link to yet. Sits in the same slot as
   .link-arrow and matches its baseline, but the dashed rule and the
   absent arrow say it is a status, not somewhere to click. */
.entry-status{
  padding-bottom:8px;border-bottom:1px dashed var(--rule-strong);
  white-space:nowrap;
}
.tag{
  font-size:10px;font-weight:500;letter-spacing:.12em;text-transform:uppercase;
  color:var(--ink-faint);border:1px solid var(--rule);padding:5px 10px;
}
@media (max-width:820px){
  .entry{grid-template-columns:1fr}
}

/* =====================================================================
   SIMPLE CARD GRID (services, involvement, blog)
   ===================================================================== */
.cards{display:grid;gap:1px;background:var(--rule);border:1px solid var(--rule)}
.cards--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.cards--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.card{background:var(--paper);padding:clamp(24px,3vw,40px);display:flex;flex-direction:column;gap:var(--s-4)}
.card .label{color:var(--ink-faint)}
.card h3{margin:0}
.card p{margin:0;font-size:var(--t-small)}
.card .spacer{flex:1}
@media (max-width:980px){.cards--3{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:720px){.cards--3,.cards--2{grid-template-columns:1fr}}

/* =====================================================================
   FORM
   ===================================================================== */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:var(--s-5)}
.form-grid .full{grid-column:1 / -1}
@media (max-width:720px){.form-grid{grid-template-columns:1fr}}

.field label{
  display:block;font-size:var(--t-label);font-weight:500;letter-spacing:.14em;
  text-transform:uppercase;color:var(--ink-faint);margin-bottom:var(--s-2);
}
.field input,.field textarea,.field select{
  width:100%;background:var(--paper-raise);border:1px solid var(--rule);
  color:var(--ink);padding:14px 16px;font-size:var(--t-small);
  transition:border-color .25s var(--ease);border-radius:0;
}
.field input:focus,.field textarea:focus,.field select:focus{
  outline:none;border-color:var(--ink);
}
.field textarea{resize:vertical;min-height:150px}
.field input::placeholder,.field textarea::placeholder{color:var(--ink-faint)}

.fs-success{
  border:1px solid var(--ink);padding:14px 18px;color:var(--ink);
  font-size:var(--t-small);margin-bottom:var(--s-5);
}
.fs-error{color:var(--danger);font-size:var(--t-small);margin-bottom:var(--s-4)}
.fs-success:empty,.fs-error:empty{display:none}
.fs-field-error{color:var(--danger);font-size:13px;display:block;margin-top:6px}
.field [aria-invalid="true"]{border-color:var(--danger)}

/* Definition rows — contact details, office, hours */
.detail-list{border-top:1px solid var(--rule)}
.detail-row{
  display:flex;justify-content:space-between;align-items:baseline;gap:var(--s-5);
  padding:var(--s-4) 0;border-bottom:1px solid var(--rule);
}
.detail-row .k{font-size:var(--t-label);font-weight:500;letter-spacing:.14em;
  text-transform:uppercase;color:var(--ink-faint);flex:none}
.detail-row .v{color:var(--ink);font-size:var(--t-small);text-align:right;overflow-wrap:anywhere}
a.detail-row:hover .v{border-bottom:1px solid var(--accent)}

/* =====================================================================
   ARTICLE
   ===================================================================== */
.article{max-width:68ch;margin-inline:auto}
.article-body{font-size:17px;line-height:1.8}
.article-body > * + *{margin-top:var(--s-5)}
.article-body h2{font-size:clamp(22px,2.6vw,30px);margin-top:var(--s-8)}
.article-body h3{margin-top:var(--s-7)}
.article-body ul,.article-body ol{padding-left:var(--s-5);list-style:revert}
.article-body li + li{margin-top:var(--s-2)}
.article-body a{color:var(--ink);border-bottom:1px solid var(--rule)}
.article-body a:hover{border-bottom-color:var(--accent)}
.article-body blockquote{
  border-left:1px solid var(--rule-strong);padding-left:var(--s-5);
  font-family:var(--font-display);font-style:italic;color:var(--ink);
}
.article-body code{font-family:var(--font-mono);font-size:14px;background:var(--paper-raise);
  border:1px solid var(--rule);padding:2px 6px}
.article-body pre{background:var(--paper-raise);border:1px solid var(--rule);
  padding:var(--s-5);overflow-x:auto;font-family:var(--font-mono);font-size:13px;line-height:1.6}
.article-body pre code{background:none;border:0;padding:0}

/* =====================================================================
   FOOTER
   ===================================================================== */
.site-footer{
  position:relative;z-index:2;
  border-top:1px solid var(--rule);
  padding-block:clamp(56px,7vw,96px) var(--s-7);
}
.footer-grid{
  display:grid;grid-template-columns:2fr 1fr 1fr 1fr;
  gap:var(--s-7) var(--gutter);
}
.footer-grid h4{
  font-family:var(--font-body);font-size:var(--t-label);font-weight:500;
  letter-spacing:.14em;text-transform:uppercase;color:var(--ink);
  margin-bottom:var(--s-4);
}
.footer-grid p{font-size:var(--t-small);max-width:34ch}
.footer-grid ul{display:flex;flex-direction:column;gap:var(--s-3)}
.footer-grid ul a{font-size:var(--t-small);border-bottom:1px solid transparent;
  padding-bottom:1px;transition:border-color .25s var(--ease);width:max-content}
.footer-grid ul a:hover{border-bottom-color:var(--accent)}

.footer-base{
  margin-top:clamp(48px,6vw,80px);padding-top:var(--s-5);
  border-top:1px solid var(--rule);
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:var(--s-4);
  font-size:13px;color:var(--ink-faint);
}
@media (max-width:980px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.footer-grid{grid-template-columns:1fr}}

/* =====================================================================
   THEME TOGGLE · LANGUAGE SWITCH · SHARE ROW
   ===================================================================== */

.pill--icon{padding:6px 10px;line-height:0}
.pill--icon svg{display:block}
/* One icon per theme: sun while dark is available, moon while light is. */
.icon-moon{display:none}
:root[data-theme="dark"] .icon-sun{display:none}
:root[data-theme="dark"] .icon-moon{display:inline}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]) .icon-sun{display:none}
  :root:not([data-theme="light"]) .icon-moon{display:inline}
}

.lang-switch{display:flex;gap:4px}
.pill--lang{padding:7px 9px;letter-spacing:.1em}
.pill--lang[aria-current="true"]{
  border-color:var(--ink);color:var(--ink);
  box-shadow:inset 0 -2px 0 0 var(--accent);
}

.share-row{
  display:flex;align-items:center;gap:var(--s-5);flex-wrap:wrap;
  margin-top:clamp(40px,5vw,64px);padding-top:var(--s-5);
  border-top:1px solid var(--rule);
}
.share-link{
  font-size:var(--t-label);font-weight:500;letter-spacing:.14em;
  text-transform:uppercase;color:var(--ink);
  border-bottom:1px solid var(--rule);padding-bottom:3px;
  transition:border-color .25s var(--ease);
}
.share-link:hover{border-bottom-color:var(--accent)}

.blog-controls{
  display:flex;flex-wrap:wrap;gap:var(--s-5);align-items:center;
  justify-content:space-between;margin-bottom:var(--s-7);
}
.blog-controls .field{min-width:min(320px,100%)}

/* Header is dense at desktop now: menu + 2 links | wordmark | 3 langs +
   toggle + CTA. Shed the least important items first as it narrows. */
@media (max-width:1180px){
  .pill-group--start .pill:not([data-menu-open]){display:none}
}
@media (max-width:880px){
  .lang-switch{gap:2px}
  .pill--lang{padding:6px 7px}
}
@media (max-width:640px){
  .pill-group--end .pill:not(.pill--solid):not(.pill--icon):not(.pill--lang){display:none}
}

/* The header cannot hold three language pills, a toggle and the CTA on a
   phone; the panel carries the only copy below 560px. */
.menu-lang{display:none;margin-bottom:var(--s-4);justify-content:center}
@media (max-width:560px){
  .site-header .lang-switch{display:none}
  .menu-lang{display:flex}
}