/* AIchitecture Webauftritt - Styles
   Farben und Typografie laut AIchitecture_Brand (Inter, #006fee / #1D4ED8 / #09102c / #020617) */
:root{
  --blue:#006fee; --blue-btn:#1D4ED8; --blue-hover:#1E40AF; --blue-deep:#1a158c;
  --navy:#09102c; --muted:#4B5563; --bg:#f3f0f7; --header:#f7f1f8; --white:#fff;
  --line:#E5E7EB; --dark:#020617; --dark2:#0B1120; --teal:#06B6D4; --teal-l:#22D3EE;
  --radius:12px; --max:1120px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;font-family:Inter,"DM Sans",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;font-size:17px;line-height:1.6;color:var(--navy);background:#fff}
img{max-width:100%;height:auto;display:block}
a{color:var(--blue-btn)}
a:hover{color:var(--blue-hover)}
:focus-visible{outline:3px solid var(--teal);outline-offset:3px;border-radius:4px}
h1,h2,h3{font-weight:700;color:var(--navy)}
p{margin:0 0 1rem}
.container{width:min(100% - 2.5rem,var(--max));margin-inline:auto}
.skip{position:absolute;left:-9999px;top:0;background:var(--blue-btn);color:#fff;padding:.6rem 1rem;z-index:100}
.skip:focus{left:1rem;top:1rem}

/* Sprachumschaltung: Inhalte liegen zweisprachig vor, sichtbar ist nur die aktive Sprache */
html[lang="de"] .en{display:none!important}
html[lang="en"] .de{display:none!important}

/* Kopfbereich */
.site-header{position:sticky;top:0;z-index:50;background:var(--header);border-bottom:1px solid var(--line)}
.nav-wrap{position:relative;display:flex;align-items:center;justify-content:space-between;gap:1rem;min-height:76px}
.brand{display:inline-block;line-height:0}
.brand img{height:46px;width:auto}
.nav-list{display:flex;align-items:center;gap:1.4rem;list-style:none;margin:0;padding:0}
.nav-list a{color:var(--navy);text-decoration:none;font-weight:500;font-size:15px;padding:.35rem 0;border-bottom:2px solid transparent}
.nav-list a:hover,.nav-list a[aria-current="page"]{color:var(--blue-btn);border-bottom-color:var(--blue-btn)}
.header-tools{display:flex;align-items:center;gap:.75rem}
.lang-switch{display:inline-flex;border:1px solid #D1D5DB;border-radius:999px;overflow:hidden;background:#fff}
.lang-switch button{border:0;background:none;padding:.4rem .85rem;font:600 13px Inter,system-ui,sans-serif;color:var(--muted);cursor:pointer}
.lang-switch button[aria-pressed="true"]{background:var(--blue-btn);color:#fff}
.nav-toggle{display:none;border:1px solid #D1D5DB;background:#fff;border-radius:8px;padding:.45rem .8rem;font:600 14px Inter,system-ui,sans-serif;color:var(--navy);cursor:pointer}
@media (max-width:960px){
  .nav-toggle{display:inline-flex}
  #site-nav{display:none;position:absolute;top:100%;left:0;right:0;background:var(--header);border-bottom:1px solid var(--line);padding:1rem 1.25rem 1.25rem;box-shadow:0 12px 24px rgba(2,6,23,.08)}
  .site-header.nav-open #site-nav{display:block}
  .nav-list{flex-direction:column;align-items:flex-start;gap:.25rem}
  .nav-list a{display:block;padding:.6rem 0;font-size:16px}
}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.8rem 1.25rem;border-radius:8px;font:600 16px Inter,system-ui,sans-serif;text-decoration:none;border:2px solid transparent;cursor:pointer;transition:background-color .2s,color .2s,border-color .2s;min-height:48px}
.btn-primary{background:var(--blue-btn);color:#fff}
.btn-primary:hover{background:var(--blue-hover);color:#fff}
.btn-ghost{border-color:#CBD5F5;color:#F9FAFB;background:transparent}
.btn-ghost:hover{border-color:var(--teal-l);color:#fff}
.btn-outline{border-color:var(--blue-btn);color:var(--blue-btn);background:#fff}
.btn-outline:hover{background:var(--bg);color:var(--blue-hover)}
.btn-row{display:flex;flex-wrap:wrap;gap:.75rem;margin-top:2rem}

/* Hero (dunkel) */
.hero{background:var(--dark);color:#F9FAFB;padding:4.5rem 0 4rem}
.hero-grid{display:grid;gap:3rem;align-items:center}
@media (min-width:900px){.hero-grid{grid-template-columns:1.15fr 1fr}}
.eyebrow{color:var(--teal-l);font-size:14px;font-weight:600;letter-spacing:.04em;text-transform:uppercase;margin:0 0 .75rem}
.hero h1{color:#F9FAFB;font-size:clamp(2.1rem,4.6vw,3.1rem);line-height:1.12;margin:0 0 1.1rem;letter-spacing:-.02em}
.lead{color:#CBD5F5;font-size:1.125rem;max-width:40rem}
.hero .btn-row{margin-top:2rem}
.hero-card{background:var(--header);border-radius:16px;padding:clamp(1.25rem,4vw,2.5rem);border:1px solid rgba(203,213,245,.25)}
.hero-card img{width:100%}
.bullets{list-style:none;padding:0;margin:2.5rem 0 0;display:grid;gap:1rem}
.bullets li{padding-left:1.1rem;border-left:3px solid var(--teal)}
.bullets strong{display:block;color:#F9FAFB;font-size:16px}
.bullets span{color:#CBD5F5;font-size:15px}

/* Seitenkopf (Unterseiten) */
.page-head{background:var(--bg);padding:3.5rem 0 2.5rem;border-bottom:1px solid var(--line)}
.page-head h1{font-size:clamp(2rem,4vw,2.8rem);line-height:1.15;margin:0 0 .75rem;letter-spacing:-.02em}
.page-head .intro{color:var(--muted);font-size:1.125rem;max-width:44rem;margin:0}
.page-head-logo{width:min(100%,720px);margin-bottom:2rem}
.page-head-logo img{width:100%}

/* Abschnitte */
.section{padding:4.5rem 0}
.section-alt{background:var(--bg)}
.section h2{font-size:clamp(1.7rem,3vw,2.1rem);line-height:1.2;margin:0 0 .75rem;letter-spacing:-.01em}
.section-intro{color:var(--muted);max-width:46rem;margin:0 0 2.5rem;font-size:1.05rem}
.section-head{margin-bottom:2.5rem}
.section-head .section-intro{margin-bottom:0}
.scroll-offset{scroll-margin-top:90px}

.grid{display:grid;gap:1.25rem}
@media (min-width:640px){.grid-2{grid-template-columns:repeat(2,1fr)}}
@media (min-width:960px){.grid-3{grid-template-columns:repeat(3,1fr)}.grid-4{grid-template-columns:repeat(4,1fr)}}

.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:1.5rem;margin:0}
.card h3{font-size:19px;line-height:1.3;margin:.6rem 0 .5rem}
.card p{margin:0;color:var(--muted);font-size:16px}
.card ul{margin:0;padding-left:1.1rem;color:var(--muted)}
.num{display:inline-grid;place-items:center;width:38px;height:38px;border-radius:50%;background:var(--blue-btn);color:#fff;font-weight:700;font-size:15px}
.steps{list-style:none;padding:0;margin:0;display:grid;gap:1.25rem;counter-reset:step}
@media (min-width:800px){.steps{grid-template-columns:repeat(3,1fr)}}

/* Hybrid-Abschnitt */
.hybrid{display:grid;gap:2rem;align-items:center}
@media (min-width:900px){.hybrid{grid-template-columns:1.1fr 1fr}}
.panel{background:#fff;border:1px solid var(--line);border-radius:16px;padding:2rem}
.panel-row{display:flex;gap:1rem;align-items:flex-start;padding:.9rem 0;border-bottom:1px solid var(--line)}
.panel-row:last-child{border-bottom:0}
.tag{display:inline-block;font-size:12px;font-weight:600;padding:.2rem .6rem;border-radius:999px;background:var(--bg);color:var(--blue-hover);white-space:nowrap}
.tag-teal{background:#ECFEFF;color:#0E7490}

/* CTA (dunkel) */
.cta{background:var(--dark2);color:#F9FAFB;border-radius:16px;padding:clamp(1.75rem,4vw,3rem)}
.cta h2{color:#F9FAFB;margin-bottom:.5rem}
.cta p{color:#CBD5F5;margin:0;max-width:40rem}
.cta .btn-row{margin-top:1.5rem}

/* Profil */
.profile-intro{display:grid;gap:2rem;align-items:start}
@media (min-width:900px){.profile-intro{grid-template-columns:1.2fr 1fr}}
.profile-intro .lead-text{font-size:1.1rem;color:var(--navy)}
.checklist{list-style:none;padding:0;margin:0;display:grid;gap:.6rem}
.checklist li{position:relative;padding:.7rem 1rem .7rem 2.9rem;background:#fff;border:1px solid var(--line);border-radius:10px;font-weight:500}
.checklist li::before{content:"";position:absolute;left:1rem;top:50%;transform:translateY(-50%);width:1.1rem;height:1.1rem;border-radius:50%;background:var(--teal);box-shadow:inset 0 0 0 4px #fff}
.chips{display:flex;flex-wrap:wrap;gap:.6rem;margin:0;padding:0;list-style:none}
.chips li{background:#fff;border:1px solid var(--line);border-radius:999px;padding:.5rem 1rem;font-weight:600;font-size:15px}

/* Team */
.member{display:grid;gap:1.5rem;align-items:center;padding:2.25rem 0;border-bottom:1px solid var(--line)}
.member:first-child{padding-top:0}
@media (min-width:800px){.member{grid-template-columns:1fr 260px}}
.member-media{order:-1}
@media (min-width:800px){.member-media{order:0}}
.member-text h2{font-size:1.5rem;margin:.6rem 0 .25rem}
.member-role{color:var(--blue-hover);font-weight:600;margin:0 0 .75rem}
.member-text p{color:var(--muted);margin:0}
.avatar{position:relative;aspect-ratio:1/1;border-radius:16px;background:linear-gradient(145deg,var(--blue) 0%,var(--blue-deep) 100%);display:grid;place-items:center;color:#fff;font-size:clamp(3.5rem,8vw,5rem);font-weight:700;letter-spacing:-.02em;margin:0}
.avatar .kind{position:absolute;left:12px;bottom:12px;background:#fff;color:var(--navy);font-size:13px;font-weight:600;padding:.25rem .65rem;border-radius:999px}
.avatar-human{background:linear-gradient(145deg,#0B1120 0%,var(--blue-deep) 100%)}

/* Blog */
.article{padding:2.5rem 0;border-bottom:1px solid var(--line)}
.article:first-child{padding-top:0}
.article h2{font-size:clamp(1.4rem,2.6vw,1.75rem);line-height:1.25;margin:.6rem 0 1rem}
.article p{color:#1F2937;max-width:46rem}
.meta{color:var(--muted);font-size:14px;margin:0}

/* Rechtliches */
.legal-nav{display:flex;flex-wrap:wrap;gap:.6rem;margin:0 0 2.5rem;padding:0;list-style:none}
.legal-nav a{display:inline-block;padding:.5rem .95rem;border:1px solid #D1D5DB;border-radius:999px;text-decoration:none;color:var(--navy);font-weight:500;font-size:15px;background:#fff}
.legal-nav a:hover{border-color:var(--blue-btn);color:var(--blue-btn)}
.legal{max-width:52rem}
.legal section{padding-bottom:2.5rem;margin-bottom:2.5rem;border-bottom:1px solid var(--line);scroll-margin-top:90px}
.legal section:last-child{border-bottom:0}
.legal h2{font-size:1.6rem;margin:0 0 1rem}
.legal h3{font-size:1.1rem;margin:1.5rem 0 .4rem}
.legal p,.legal li{color:#1F2937}
.legal ul{padding-left:1.2rem}
.todo{background:#FEF3C7;color:#78350F;padding:.05rem .4rem;border-radius:4px;font-weight:600;white-space:nowrap}

/* Kontakt */
.contact-grid{display:grid;gap:2.5rem}
@media (min-width:900px){.contact-grid{grid-template-columns:1.5fr 1fr;align-items:start}}
.form{background:#fff;border:1px solid var(--line);border-radius:16px;padding:clamp(1.25rem,3vw,2rem)}
.form-grid{display:grid;gap:0 1rem}
@media (min-width:640px){.form-grid{grid-template-columns:1fr 1fr}.form-grid .full{grid-column:1/-1}}
.field{display:grid;gap:.4rem;margin-bottom:1.1rem}
.label{font-weight:600;font-size:15px}
.req{color:#B91C1C}
input,select,textarea{font:inherit;font-size:16px;padding:.75rem .9rem;border:1px solid #D1D5DB;border-radius:8px;background:#fff;color:var(--navy);width:100%;min-height:48px}
textarea{min-height:150px;resize:vertical}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--blue-btn);box-shadow:0 0 0 3px rgba(29,78,216,.18)}
input[aria-invalid="true"],textarea[aria-invalid="true"]{border-color:#B91C1C}
.check{display:flex;gap:.6rem;align-items:flex-start;font-size:15px;color:var(--muted)}
.check input{width:1.1rem;min-height:1.1rem;margin-top:.3rem;flex:none}
.captcha-box{min-height:65px}
.captcha-math{background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:1rem;display:grid;gap:.5rem}
.captcha-math p{margin:0;font-weight:600}
.captcha-math input{max-width:12rem}
.hp{position:absolute!important;left:-10000px!important;width:1px!important;height:1px!important;overflow:hidden!important}
.status{margin-top:1rem;padding:.9rem 1rem;border-radius:8px;display:none;font-size:15px}
.status.ok{display:block;background:#ECFDF5;color:#065F46}
.status.err{display:block;background:#FEF2F2;color:#991B1B}
.info-card{background:var(--bg);border-radius:16px;padding:1.75rem}
.info-card h3{margin:0 0 .75rem;font-size:1.15rem}
.info-card p{margin:0 0 .9rem;color:#1F2937}
.info-card a{font-weight:600}

/* Fußbereich */
.site-footer{background:var(--dark);color:#9CA3AF;padding:3.25rem 0 2rem;font-size:15px}
.footer-grid{display:grid;gap:2rem}
@media (min-width:800px){.footer-grid{grid-template-columns:2fr 1fr 1fr}}
.site-footer h2{font-size:14px;color:#E5E7EB;text-transform:uppercase;letter-spacing:.06em;margin:0 0 .75rem}
.site-footer ul{list-style:none;padding:0;margin:0;display:grid;gap:.45rem}
.site-footer a{color:#E5E7EB;text-decoration:none}
.site-footer a:hover{color:#93C5FD;text-decoration:underline}
.wordmark{font-size:22px;font-weight:700;color:#F9FAFB;letter-spacing:-.01em}
.wordmark span{color:#60A5FA}
.footer-bottom{margin-top:2.5rem;padding-top:1.25rem;border-top:1px solid #1F2937;font-size:14px}

@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important;animation:none!important}}
.article h3{font-size:1.2rem;margin:1.75rem 0 .5rem}
.article ul{color:#1F2937;max-width:46rem;padding-left:1.2rem}
.teaser{font-size:1.1rem;color:var(--muted)}
/* Ergänzungen nach Prüfung (Faramir / Elrond) */
.avatar-ai{background:linear-gradient(145deg,var(--blue-btn) 0%,var(--blue-hover) 100%)}
.avatar .ai-icon{width:42%;height:auto}
.ai-note{background:#fff;border:1px solid var(--line);border-left:4px solid var(--teal);border-radius:var(--radius);padding:1.25rem 1.5rem;margin:0 0 2rem}
.ai-note p{margin:0 0 .5rem;color:#1F2937}
.ai-note p:last-child{margin:0}
.small-note{font-size:14px;color:var(--muted);margin:1rem 0 0}
.card,.info-card,.form{box-shadow:0 1px 2px rgba(2,6,23,.06)}
.avatar img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:50% 20%;border-radius:16px}
.profile-photo{width:100%;max-width:220px;aspect-ratio:4/5;object-fit:cover;object-position:50% 20%;border-radius:14px;margin:0 0 1rem}
.avatar .gen{position:absolute;left:12px;top:12px;background:rgba(2,6,23,.78);color:#fff;font-size:12px;font-weight:600;padding:.25rem .6rem;border-radius:999px}