/* ------------------------------------------------------------------
   Schriften: lokal einbinden (keine Google-Fonts-Requests).
   Dateien z. B. von https://github.com/IBM/plex herunterladen und
   unter /fonts/ ablegen. Fällt sauber auf Systemschriften zurück.
   ------------------------------------------------------------------ */
@font-face{font-family:"IBM Plex Sans";font-weight:400;font-style:normal;font-display:swap;src:url("fonts/ibm-plex-sans-regular.woff2") format("woff2")}
@font-face{font-family:"IBM Plex Sans";font-weight:500;font-style:normal;font-display:swap;src:url("fonts/ibm-plex-sans-medium.woff2") format("woff2")}
@font-face{font-family:"IBM Plex Sans";font-weight:600;font-style:normal;font-display:swap;src:url("fonts/ibm-plex-sans-semibold.woff2") format("woff2")}

:root{
  --ink:#1B1A2E;          /* Fließtext */
  --ink-soft:#575470;     /* Nebentext */
  --indigo:#352E81;       /* Marke: Überschriften, Nav, Kontakt */
  --blue:#1604D6;         /* Marke: Links, Buttons, Akzent */
  --blue-dark:#1103A8;
  --green:#04D666;        /* Marke: nur als Ampel-Marker */
  --yellow:#D6B704;
  --red:#D61804;
  --paper:#FFFFFF;
  --paper-alt:#F2F1F8;    /* Wechselflächen, Indigo-Tint */
  --line:#D9D6E8;
  --todo:#FFF3C4;         /* Markierung offener Stellen – vor Livegang entfernen */
  --max:72rem;
  --measure:38rem;
  --font:"IBM Plex Sans","Segoe UI",system-ui,-apple-system,Roboto,Arial,sans-serif;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:5rem}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;font-family:var(--font);font-size:1.0625rem;line-height:1.6;color:var(--ink);background:var(--paper);-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--blue);text-decoration-thickness:1px;text-underline-offset:3px}
a:hover{color:var(--blue-dark)}
:focus-visible{outline:3px solid var(--blue);outline-offset:3px}
h1,h2,h3{color:var(--indigo);line-height:1.15;margin:0 0 .75rem;font-weight:600;letter-spacing:-.01em}
h1{font-size:clamp(2.4rem,5.5vw,4.25rem);line-height:1.02;letter-spacing:-.02em}
h2{font-size:clamp(1.6rem,3vw,2.25rem)}
h3{font-size:1.3rem;margin-top:2.5rem}
p{margin:0 0 1rem;max-width:var(--measure)}
ul{margin:0 0 1rem;padding-left:1.25rem;max-width:var(--measure)}
li{margin-bottom:.4rem}
strong{font-weight:600}
.wrap{max-width:var(--max);margin:0 auto;padding:0 1.5rem}
section{padding:5rem 0}
section.alt{background:var(--paper-alt)}
.lead{font-size:1.2rem;color:var(--ink-soft)}
.todo{background:var(--todo);padding:0 .2em;border-radius:2px}

/* Buttons */
.btn{display:inline-block;padding:.85rem 1.4rem;border-radius:4px;font-weight:500;text-decoration:none;border:1.5px solid var(--blue);line-height:1.2}
.btn-primary{background:var(--blue);color:#fff}
.btn-primary:hover{background:var(--blue-dark);border-color:var(--blue-dark);color:#fff}
.btn-secondary{background:transparent;color:var(--blue)}
.btn-secondary:hover{background:rgba(22,4,214,.06)}
.actions{display:flex;flex-wrap:wrap;gap:.75rem;margin-top:1.75rem}

/* Kopf */
.site-header{position:sticky;top:0;z-index:10;background:rgba(255,255,255,.94);backdrop-filter:blur(6px);border-bottom:1px solid var(--line)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;gap:1rem;height:4.25rem}
.brand{display:flex;align-items:center;gap:.6rem;color:var(--indigo);text-decoration:none;font-weight:600;font-size:1.1rem}
.brand img{height:2.1rem;width:auto}
.nav{display:flex;gap:1.5rem;list-style:none;margin:0;padding:0}
.nav a{color:var(--indigo);text-decoration:none;font-size:.95rem}
.nav a:hover{color:var(--blue)}
.nav-toggle{display:none;background:none;border:1.5px solid var(--line);border-radius:4px;padding:.45rem .7rem;color:var(--indigo);font:inherit}
@media (max-width:820px){
  .nav-toggle{display:block}
  .nav{display:none;position:absolute;left:0;right:0;top:4.25rem;background:#fff;border-bottom:1px solid var(--line);flex-direction:column;gap:0;padding:.5rem 1.5rem 1rem}
  .nav.open{display:flex}
  .nav a{display:block;padding:.6rem 0}
}

/* Hero: Das eine markante Element – die dreiteilige Zeile als gestapelte Wortmarke */
.hero {
  background-image: url("images/hero_informationssicherheit.png");
  background-size: cover;
  background-position: center right;
  padding:6.5rem 0 5.5rem;
	border-bottom:1px solid var(--line);
	}
.hero .wrap{display:grid;grid-template-columns:minmax(0,1fr);gap:2rem}
.hero h1{font-size:clamp(2.75rem,7vw,5.5rem);max-width:22ch}
.hero h1 span{display:block}
.hero h1 span:nth-child(2){color:var(--blue)}
.hero .intro{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:2rem 3rem;margin-top:1.5rem;padding-top:2rem;border-top:2px solid var(--indigo)}
.hero .intro p{margin-top:0}
@media (max-width:820px){.hero{padding:4.5rem 0 4rem}.hero .intro{grid-template-columns:1fr;gap:1rem}}

/* Zweispaltige Aussagen */
.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.6fr);gap:3rem}
@media (max-width:820px){.split{grid-template-columns:1fr;gap:1rem}}

/* Für wen – Situationen als Liste mit Rule statt Karten */
.situations{list-style:none;padding:0;margin:1.5rem 0 0;max-width:none;display:grid;grid-template-columns:repeat(auto-fit,minmax(18rem,1fr));gap:1.25rem 2.5rem}
.situations li{border-top:2px solid var(--blue);padding-top:.75rem;margin:0}

/* Leistungen */
.service{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.8fr);gap:2rem 3rem;padding:3rem 0;border-top:1px solid var(--line)}
.service:first-of-type{border-top:0;padding-top:1rem}
.service h3{margin-top:0}
.service .kicker{color:var(--ink-soft);font-size:.95rem;margin:0}
.service ul{columns:1}
@media (max-width:820px){.service{grid-template-columns:1fr;gap:.5rem}}

/* Ampel-Marker – einzige Verwendung von Grün, Gelb, Rot */
.mark{display:inline-block;width:.7em;height:.7em;border-radius:50%;margin:0 .35em 0 .1em;vertical-align:-.05em}
.mark-green{background:var(--green)}.mark-yellow{background:var(--yellow)}.mark-red{background:var(--red)}

/* Tabelle */
.table-wrap{overflow-x:auto;margin:1.5rem 0 1rem}
table{border-collapse:collapse;width:100%;min-width:38rem;font-size:.98rem}
th,td{text-align:left;padding:.8rem .9rem;border-bottom:1px solid var(--line);vertical-align:top}
th{color:var(--indigo);font-weight:600;border-bottom:2px solid var(--indigo)}
td:last-child,th:last-child{white-space:nowrap}
.small{font-size:.9rem;color:var(--ink-soft)}

/* Vorgehen – echte Sequenz, daher nummeriert */
.steps{list-style:none;padding:0;margin:2rem 0 0;max-width:none;display:grid;grid-template-columns:repeat(auto-fit,minmax(15rem,1fr));gap:2rem;counter-reset:step}
.steps li{counter-increment:step;margin:0}
.steps li::before{content:counter(step);display:block;font-size:2.5rem;font-weight:600;color:var(--blue);line-height:1;margin-bottom:.5rem}
.steps strong{display:block;color:var(--indigo);margin-bottom:.25rem}

/* Über uns */
.about{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(0,1fr);gap:3rem;align-items:start}
.about img{border-radius:4px;aspect-ratio:4/5;object-fit:cover;width:100%}
.about .person{margin-top:2rem}
@media (max-width:820px){.about{grid-template-columns:1fr}}

/* FAQ */
details{border-top:1px solid var(--line);padding:1rem 0}
details:last-of-type{border-bottom:1px solid var(--line)}
summary{cursor:pointer;font-weight:500;color:var(--indigo);list-style:none;display:flex;justify-content:space-between;gap:1rem}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";color:var(--blue);font-size:1.4rem;line-height:1}
details[open] summary::after{content:"–"}
details p{margin-top:.75rem}

/* Blog */
.posts{list-style:none;padding:0;margin:1.5rem 0 0;max-width:none;display:grid;grid-template-columns:repeat(auto-fit,minmax(16rem,1fr));gap:2rem}
.posts li{margin:0}
.posts time{display:block;font-size:.9rem;color:var(--ink-soft);margin-bottom:.35rem}
.posts a{color:var(--indigo);font-weight:500;text-decoration:none}
.posts a:hover{color:var(--blue)}

/* Kontakt */
.contact{background:var(--indigo);color:#fff}
.contact h2,.contact p,.contact address{color:#fff}
.contact .lead{color:rgba(255,255,255,.8)}
.contact address{font-style:normal;line-height:1.7}
.contact a{color:#fff}
.contact .btn-primary{background:#fff;color:var(--indigo);border-color:#fff}
.contact .btn-primary:hover{background:var(--paper-alt);color:var(--indigo)}

/* Fuß */
.site-footer{padding:2rem 0;font-size:.9rem;color:var(--ink-soft)}
.site-footer .wrap{display:flex;flex-wrap:wrap;gap:1rem 2rem;justify-content:space-between}
.site-footer ul{list-style:none;display:flex;flex-wrap:wrap;gap:1.25rem;margin:0;padding:0;max-width:none}
.site-footer a{color:var(--ink-soft)}

/* Rechtstexte / Unterseiten */
.legal{padding:4rem 0 5rem}
.legal h1{font-size:clamp(2rem,4vw,3rem);margin-bottom:2rem}
.legal h2{font-size:1.3rem;margin:2.5rem 0 .5rem}
.legal address{font-style:normal;line-height:1.7;margin-bottom:1.5rem}
.legal dl{margin:0 0 1.5rem;max-width:var(--measure)}
.legal dt{font-weight:600;color:var(--indigo);margin-top:1rem}
.legal dd{margin:0}
.legal .back{display:inline-block;margin-top:2.5rem}


/* ==================================================================
   Blog
   ================================================================== */

/* Beitragsseite */
.post{padding:0 0 4rem}
.post-hero{margin:0 0 2.5rem}
.post-hero img{width:100%;aspect-ratio:21/9;object-fit:cover;border-radius:4px}
.post-hero figcaption{font-size:.85rem;color:var(--ink-soft);margin-top:.5rem}
.post-header{padding:3rem 0 1.5rem}
.post-header h1{font-size:clamp(2rem,4.5vw,3.25rem);max-width:24ch;margin-bottom:1rem}
.post-meta{display:flex;flex-wrap:wrap;align-items:center;gap:.75rem;font-size:.9rem;color:var(--ink-soft);margin:0}
.post-body{max-width:var(--measure)}
.post-body h2{font-size:1.5rem;margin:2.75rem 0 .75rem}
.post-body h3{font-size:1.2rem;margin:2rem 0 .5rem}
.post-body ul,.post-body ol{margin-bottom:1.25rem}
.post-body blockquote{margin:2rem 0;padding:.25rem 0 .25rem 1.5rem;border-left:3px solid var(--blue);color:var(--ink-soft);font-size:1.1rem}
.post-body blockquote p:last-child{margin-bottom:0}
.post-body figure{margin:2rem 0}
.post-body figure img{border-radius:4px}
.post-body figcaption{font-size:.85rem;color:var(--ink-soft);margin-top:.5rem}
.post-body code{background:var(--paper-alt);padding:.1em .35em;border-radius:3px;font-size:.92em}
.post-body pre{background:var(--paper-alt);padding:1rem;border-radius:4px;overflow-x:auto;font-size:.92rem}
.post-body pre code{background:none;padding:0}
.post-footer{margin-top:3rem;padding-top:2rem;border-top:1px solid var(--line);max-width:var(--measure)}

/* Kategorie-Chips */
.cat{display:inline-block;font-size:.8rem;line-height:1;padding:.4em .7em;border:1px solid var(--line);border-radius:999px;color:var(--indigo);text-decoration:none;background:var(--paper)}
a.cat:hover{border-color:var(--blue);color:var(--blue)}

/* Filterleiste */
.filters{display:flex;flex-wrap:wrap;gap:.5rem;margin:1.5rem 0 2.5rem;padding:0;list-style:none;max-width:none}
.filters li{margin:0}
.filters button{font:inherit;font-size:.9rem;cursor:pointer;padding:.5em .9em;border:1.5px solid var(--line);background:transparent;border-radius:999px;color:var(--indigo)}
.filters button:hover{border-color:var(--blue);color:var(--blue)}
.filters button[aria-pressed="true"]{background:var(--indigo);border-color:var(--indigo);color:#fff}

/* Beitragsliste */
.post-list{list-style:none;padding:0;margin:0;max-width:none;display:grid;grid-template-columns:repeat(auto-fill,minmax(19rem,1fr));gap:2.5rem}
.post-list li{margin:0}
.post-card{display:flex;flex-direction:column;height:100%}
.post-card img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:4px;margin-bottom:1rem}
.post-card .post-meta{margin-bottom:.5rem}
.post-card h3{font-size:1.15rem;margin:0 0 .5rem}
.post-card h3 a{color:var(--indigo);text-decoration:none}
.post-card h3 a:hover{color:var(--blue)}
.post-card p{font-size:.95rem;color:var(--ink-soft);margin:0}
.empty{color:var(--ink-soft)}