/* =====================================================
   K&V Netzwerkdienste — Public Site CSS
   ===================================================== */

:root, :root[data-theme="hell"]{
  --bg:#f7f6f1; --bg-2:#efeee9;
  --panel:#ffffff; --panel-line:#e0dccf;
  --ink:#0f172a; --mute:#6b7280; --soft:#334155;
  --accent:#1f4ed8; --accent-soft:#1e3a8a;
  --btn-ink:#ffffff; --input-bg:#ffffff;
  --grid-line:rgba(15,23,42,.04);
  --glow:rgba(31,78,216,.16);
}
*{border-color:var(--panel-line)}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;-webkit-font-smoothing:antialiased}
.grid-bg{
  background-image:
    linear-gradient(transparent calc(100% - 1px), var(--grid-line) calc(100% - 1px)),
    linear-gradient(90deg, transparent calc(100% - 1px), var(--grid-line) calc(100% - 1px));
  background-size:32px 32px;
}
.mono{font-family:ui-monospace,SFMono-Regular,"JetBrains Mono",Menlo,Consolas,monospace}

/* Karten */
.card{background:var(--panel);border:1px solid var(--panel-line);border-radius:12px;padding:14px 18px !important;box-shadow:0 1px 2px rgba(15,23,42,.04)}
.card h3{font-size:1.02rem;font-weight:600;margin:0;line-height:1.2}
.card .card-eyebrow{margin-bottom:4px;font-size:10.5px}
.card p, .card li{color:var(--soft);font-size:.92rem;line-height:1.5}
.card .prose-card p{margin:0 0 .35rem}
.card strong{color:var(--ink);font-weight:600}
.card-frame{background:var(--panel);border:1px solid var(--panel-line);border-radius:12px;overflow:hidden;box-shadow:0 1px 2px rgba(15,23,42,.04)}

.eyebrow{display:inline-flex;align-items:center;gap:.6rem;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--mute)}
.eyebrow::before{content:"";width:24px;height:1px;background:currentColor;opacity:.6}
.eyebrow.num::before{display:none}
.eyebrow .n{color:var(--accent);font-weight:600}
.card-eyebrow{display:flex;align-items:center;gap:.6rem;font-family:ui-monospace,Menlo,Consolas,monospace;font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--mute);margin-bottom:4px}
.card-eyebrow .n{color:var(--accent);font-weight:600}

section.sec{padding:28px 0;border-top:1px solid var(--panel-line)}
section.sec:first-of-type{border-top:0;padding-top:36px}
.sec-head{display:grid;gap:10px;max-width:780px;margin-bottom:20px}
.sec-head h2{font-size:clamp(28px,3.6vw,40px);line-height:1.1;letter-spacing:-.02em;font-weight:600;margin:0}
.sec-head p{color:var(--mute);font-size:16px;margin:0;max-width:60ch}

.input{width:100%;background:var(--input-bg);color:var(--ink);border:1px solid var(--panel-line);border-radius:10px;padding:.625rem .75rem;font:inherit;outline:none}
.input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--glow)}

.btn{display:inline-flex;align-items:center;gap:.5rem;padding:.7rem 1.1rem;border-radius:10px;font-weight:600;font-size:.9rem;line-height:1;border:1px solid var(--accent);background:var(--accent);color:var(--btn-ink);transition:filter .15s, box-shadow .15s}
.btn:hover{filter:brightness(1.08);box-shadow:0 0 0 4px var(--glow)}
.btn-ghost{display:inline-flex;align-items:center;gap:.5rem;padding:.7rem 1.1rem;border-radius:10px;font-weight:500;font-size:.9rem;line-height:1;border:1px solid var(--panel-line);background:transparent;color:var(--ink)}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent)}

.link-u{border-bottom:1px solid var(--panel-line);padding-bottom:1px}
.link-u:hover{color:var(--accent);border-color:var(--accent)}

details > summary{list-style:none;cursor:pointer}
details > summary::-webkit-details-marker{display:none}
.lst-summary{display:flex;align-items:flex-start;justify-content:space-between;gap:1rem}
.lst-summary .chev{font-size:1.25rem;line-height:1;margin-top:.25rem;transition:transform .2s;color:var(--mute)}
details[open] .lst-summary .chev{transform:rotate(45deg);color:var(--accent)}
.leistung > summary:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:8px}
.leistung{padding:14px 18px !important}
.leistung .card-eyebrow{margin-bottom:2px;font-size:10px}
.leistung h3{font-size:1.02rem;line-height:1.2}
.leistung .lst-summary{align-items:center;gap:.5rem}
.leistung .lst-summary .chev{margin-top:0;font-size:1.1rem}
.leistung[open] > div{margin-top:10px}
#leistungen .grid{gap:10px}
@media (max-width:767px){
  .leistung{padding:12px 14px !important}
  .leistung h3{font-size:.98rem}
  #leistungen .grid{gap:8px}
}

.row-strip{display:grid;gap:0}
.row-strip > *{padding:18px 18px;border-right:1px solid var(--panel-line)}
.row-strip > *:last-child{border-right:0}
@media (max-width:767px){
  .row-strip > *{border-right:0;border-bottom:1px solid var(--panel-line)}
  .row-strip > *:last-child{border-bottom:0}
}
.row-strip h3{font-size:1.02rem;font-weight:600;margin:0;line-height:1.2}
.row-strip p{color:var(--soft);font-size:.92rem;line-height:1.5;margin:.4rem 0 0}

.tool-groups{padding:18px 22px}
.tool-group{padding-top:14px;margin-top:14px;border-top:1px solid var(--panel-line)}
.tool-group:first-child{padding-top:0;margin-top:0;border-top:0}
.tool-group h3{font-size:1rem;font-weight:600;margin:0 0 8px;line-height:1.2}
.tool-group ul{margin:0;padding:0;list-style:none;display:grid;gap:6px}
@media(min-width:768px){.tool-group ul{grid-template-columns:repeat(2,1fr);gap:6px 28px}}
@media(min-width:1024px){.tool-group ul{grid-template-columns:repeat(3,1fr)}}
.tool-group li{color:var(--soft);font-size:.92rem;line-height:1.4}
.tool-group li strong{color:var(--ink)}

.cta-band{background:linear-gradient(180deg,var(--accent),var(--accent-soft));color:#fff;border-radius:14px;padding:22px 24px;box-shadow:0 10px 30px -10px var(--glow)}
.cta-band-inner{display:flex;flex-wrap:wrap;gap:18px;align-items:center;justify-content:space-between}
.cta-band .card-eyebrow{color:rgba(255,255,255,.85);margin-bottom:6px}
.cta-band .card-eyebrow .n{color:#fff}
.cta-band-title{font-size:1.25rem;font-weight:600;line-height:1.25;margin:0;color:#fff}
.cta-band-sub{margin:.35rem 0 0;color:rgba(255,255,255,.85);font-size:.92rem}
.cta-band-actions{display:flex;gap:10px;flex-wrap:wrap}
.cta-band .btn{background:#fff;color:var(--accent-soft);border-color:#fff}
.cta-band .btn:hover{filter:brightness(1);box-shadow:0 0 0 4px rgba(255,255,255,.25)}
.cta-band .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.5)}
.cta-band .btn-ghost:hover{color:#fff;border-color:#fff}

/* Prose-Container (Lede, Card-Body, Legal) */
.prose-public p{margin:0 0 .65rem}
.prose-public p:last-child{margin-bottom:0}
.prose-public strong{color:var(--ink);font-weight:600}
.prose-public ul{margin:0 0 .65rem 1.1rem;list-style:disc}
.prose-card p{margin:0}
.prose h2{font-size:1.35rem;font-weight:600;line-height:1.2;margin:1.6rem 0 .6rem;color:var(--ink)}
.prose h2:first-child{margin-top:0}
.prose h3{font-size:1.05rem;font-weight:600;line-height:1.25;margin:1.1rem 0 .35rem;color:var(--ink)}
.prose p,.prose li{color:var(--soft);font-size:.95rem;line-height:1.6}
.prose p{margin:0 0 .65rem}
.prose ul{margin:0 0 .65rem 1.1rem;list-style:disc}
.prose a{color:inherit;border-bottom:1px solid var(--panel-line);padding-bottom:1px}
.prose a:hover{color:var(--accent);border-color:var(--accent)}

/* Terminal */
.term{background:#0d1117;border:1px solid #1f2630;border-radius:12px;overflow:hidden;box-shadow:0 10px 30px -10px rgba(0,0,0,.4);font-family:ui-monospace,SFMono-Regular,"JetBrains Mono",Menlo,Consolas,monospace;color:#cdd6e3}
.term-bar{display:flex;align-items:center;gap:8px;padding:10px 14px;background:#161b22;border-bottom:1px solid #1f2630}
.term-dot{width:11px;height:11px;border-radius:999px;display:inline-block}
.term-title{margin-left:8px;font-size:12px;color:#8b96a8;letter-spacing:.02em}
.term-body{padding:16px 18px;font-size:13.5px;line-height:1.5}
.term-body p{margin:0}
.term-prompt{color:#5b9bf7;font-weight:600;margin-right:6px}
.term-out{color:#cdd6e3}
.term-mute{color:#7a8595}
.term-link{color:#a8c5ec;text-decoration:underline;text-decoration-color:#2a3a55;text-underline-offset:3px}
.term-link:hover{color:#5b9bf7;text-decoration-color:#5b9bf7}
.term-strong{color:#e7eef6;font-weight:600}
.term-caret{display:inline-block;width:8px;background:#5b9bf7;color:transparent;animation:blink 1s steps(2,start) infinite}
@keyframes blink{to{visibility:hidden}}

/* A11y-Toggle + Panel */
.a11y-toggle{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:10px;background:transparent;color:var(--ink);border:1px solid var(--panel-line);cursor:pointer;transition:background .2s,color .2s,border-color .2s}
.a11y-toggle:hover{border-color:var(--accent);color:var(--accent)}
.a11y-toggle[aria-expanded="true"]{background:var(--accent);color:var(--btn-ink);border-color:var(--accent)}
.a11y-toggle:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

.a11y-panel{position:fixed;top:72px;right:16px;z-index:60;width:380px;max-width:calc(100vw - 24px);background:var(--panel);color:var(--ink);border:1px solid var(--panel-line);border-radius:14px;box-shadow:0 30px 80px -20px rgba(15,23,42,.25);padding:20px;transform:translateY(-8px);opacity:0;pointer-events:none;transition:transform .25s,opacity .25s}
.a11y-panel.open{transform:none;opacity:1;pointer-events:auto}
.a11y-panel[hidden]{display:none}
.a11y-panel-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;padding-bottom:12px;border-bottom:1px solid var(--panel-line)}
.a11y-panel h2{font-size:18px;font-weight:600;letter-spacing:-.01em;margin:0;color:var(--ink)}
.a11y-close{width:34px;height:34px;border-radius:8px;cursor:pointer;background:transparent;color:var(--ink);border:1px solid var(--panel-line);display:inline-flex;align-items:center;justify-content:center}
.a11y-close:hover{border-color:var(--accent);color:var(--accent)}
.a11y-section{margin-bottom:14px}
.a11y-section:last-of-type{margin-bottom:0}
.a11y-label{display:block;font-family:ui-monospace,Menlo,Consolas,monospace;font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--mute);margin-bottom:8px;font-weight:600}
.a11y-row{display:flex;flex-wrap:wrap;gap:6px}
.a11y-btn{flex:1 1 auto;min-width:0;display:inline-flex;align-items:center;justify-content:center;gap:6px;flex-direction:column;background:transparent;color:var(--ink);border:1px solid var(--panel-line);border-radius:8px;padding:10px 8px;font-size:13px;font-weight:600;cursor:pointer;line-height:1.2;transition:background .15s,border-color .15s,color .15s}
.a11y-btn small{font-size:10.5px;color:var(--mute);font-weight:500;letter-spacing:.04em;margin-top:2px}
.a11y-btn:hover{border-color:var(--accent);color:var(--accent)}
.a11y-btn[aria-pressed="true"]{background:var(--accent);color:var(--btn-ink);border-color:var(--accent)}
.a11y-btn[aria-pressed="true"] small{color:rgba(255,255,255,.85)}
.a11y-btn[hidden]{display:none !important}
.a11y-row > .a11y-btn:not([data-font]){flex-direction:row;justify-content:flex-start;text-align:left;padding:10px 12px}
.a11y-reset{width:100%;background:transparent;color:var(--ink);border:1.5px dashed var(--panel-line);border-radius:8px;padding:11px;font-size:13px;font-weight:600;cursor:pointer;transition:color .2s,border-color .2s,background .2s}
.a11y-reset:hover{color:#b91c1c;border-color:#b91c1c;background:rgba(185,28,28,.06)}
.a11y-foot{font-size:12.5px;color:var(--mute);margin:14px 0 0;padding-top:12px;border-top:1px solid var(--panel-line);line-height:1.55}
.a11y-foot a{color:var(--accent);border-bottom:1px solid var(--accent);padding-bottom:1px}

html.a11y-font-1{font-size:112.5%}
html.a11y-font-2{font-size:125%}
html.a11y-contrast{
  --bg:#000 !important;--bg-2:#0a0a0a !important;
  --panel:#000 !important;--panel-line:rgba(255,255,255,.7) !important;
  --ink:#fff !important;--mute:#fff !important;--soft:#fff !important;
  --accent:#ffd54a !important;--accent-soft:#ffd54a !important;
  --btn-ink:#000 !important;--input-bg:#000 !important;
  --grid-line:rgba(255,255,255,.18) !important;
}
html.a11y-contrast body{background:#000 !important;color:#fff !important}
html.a11y-contrast .card,html.a11y-contrast .card-frame{background:#000 !important;border-color:#fff !important;box-shadow:none !important}
html.a11y-contrast a:not(.btn):not(.a11y-btn):not(.a11y-close){text-decoration:underline}
html.a11y-contrast .term{background:#000 !important;border-color:#fff !important}
html.a11y-contrast .term-bar{background:#111 !important;border-color:#fff !important}
html.a11y-contrast .term-prompt,html.a11y-contrast .term-link,html.a11y-contrast .term-strong{color:#ffd54a !important}
html.a11y-readable body{line-height:1.85;letter-spacing:.015em;word-spacing:.05em}
html.a11y-readable p,html.a11y-readable li{line-height:1.9;margin-bottom:.5rem}
html.a11y-no-motion *,html.a11y-no-motion *::before,html.a11y-no-motion *::after{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important;scroll-behavior:auto !important}
html.a11y-no-motion .term-caret{animation:none !important;background:transparent !important}
.a11y-speaking{outline:3px solid var(--accent);outline-offset:6px;border-radius:8px}

::selection{background:var(--accent);color:var(--btn-ink)}

/* ===== Header-Navigation: Dropdowns (Desktop) ===== */
.nav-dd{position:relative}
.nav-dd-btn{display:inline-flex;align-items:center;gap:.35rem;background:none;border:0;border-bottom:1px solid var(--panel-line);padding:0 0 1px;font:inherit;color:inherit;cursor:pointer}
.nav-dd-btn:hover,.nav-dd-btn[aria-expanded="true"]{color:var(--accent);border-color:var(--accent)}
.nav-dd-btn:focus-visible{outline:2px solid var(--accent);outline-offset:4px;border-radius:3px}
.nav-dd-caret{transition:transform .15s}
.nav-dd-btn[aria-expanded="true"] .nav-dd-caret,.m-acc-btn[aria-expanded="true"] .nav-dd-caret{transform:rotate(180deg)}
.nav-dd-panel{position:absolute;left:-14px;top:calc(100% + 14px);min-width:16rem;background:var(--panel);border:1px solid var(--panel-line);border-radius:12px;box-shadow:0 12px 32px rgba(15,23,42,.12);padding:.5rem;z-index:50}
.nav-dd-panel::before{content:"";position:absolute;left:0;right:0;top:-14px;height:14px}
.nav-dd-list{list-style:none;margin:0;padding:0}
.nav-dd-link{display:block;padding:.5rem .7rem;border-radius:8px;color:var(--ink);text-decoration:none;white-space:nowrap}
.nav-dd-link:hover,.nav-dd-link:focus-visible{background:var(--bg-2);color:var(--accent);outline:none}
.nav-dd-overview{font-weight:600;border-bottom:1px solid var(--panel-line);border-radius:8px 8px 0 0;margin-bottom:.25rem}
.nav-dd-sub{list-style:none;margin:0 0 .25rem;padding:0 0 0 .9rem}
.nav-dd-sublink{font-size:.9em;color:var(--soft);padding-top:.35rem;padding-bottom:.35rem}
.nav-dd-sublink::before{content:"·";margin-right:.45rem;color:var(--mute)}

/* ===== Header-Navigation: Akkordeon (Mobil) ===== */
#mobile-nav{max-height:calc(100vh - 4rem);overflow-y:auto}
.m-acc-btn{background:none;border:0;font:inherit;color:inherit;cursor:pointer}
.m-acc-btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.m-acc-list{list-style:none;margin:0;padding:0 0 0 .5rem}
.m-acc-link{display:block;padding:.55rem .5rem;border-radius:6px;color:var(--ink)}
.m-acc-link:hover,.m-acc-link:focus-visible{background:var(--bg-2);color:var(--accent);outline:none}
.m-acc-sublink{padding-left:1.4rem;font-size:.92em;color:var(--soft)}
.m-acc-sublink::before{content:"·";margin-right:.45rem;color:var(--mute)}

html.a11y-contrast .nav-dd-panel{background:#000 !important;border-color:#fff !important;box-shadow:none !important}
html.a11y-contrast .nav-dd-link,html.a11y-contrast .m-acc-link{color:#fff !important}
html.a11y-contrast .nav-dd-link:hover,html.a11y-contrast .nav-dd-link:focus-visible,html.a11y-contrast .m-acc-link:hover,html.a11y-contrast .m-acc-link:focus-visible{background:#111 !important;color:#ffd54a !important}

@media (max-width:480px){
  .a11y-panel{right:8px;left:8px;width:auto;top:68px}
}