/* ju-ser.de – single stylesheet, mobile-first, no framework. */
@font-face{font-family:Montserrat;font-style:normal;font-weight:400;font-display:swap;src:url(/fonts/montserrat-400.woff2) format("woff2")}
@font-face{font-family:Montserrat;font-style:normal;font-weight:700;font-display:swap;src:url(/fonts/montserrat-700.woff2) format("woff2")}

:root{
  --brand:#275fa3;        /* Juser blue, AA (>=4.5:1) on white and on both tints */
  --brand-strong:#1f508a;
  --brand-bright:#4189e0; /* original logo blue, decorative use */
  --tint:#e3edfa;
  --tint-2:#f3f7fc;
  --ink:#1f2933;
  --muted:#4b5563;
  --line:#d9e2ec;
  --bg:#fff;
  --accent:var(--brand);
  --accent-tint:var(--tint);
  --radius:10px;
  --wrap:1120px;
  --todo:#fff4c2;
}
/* KI section: violet accent, primary buttons stay Juser blue */
.section-ki,.ki-accent{--accent:#6d46c9;--accent-tint:#efe9fb}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font:400 1rem/1.6 Montserrat,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
img,picture,svg{max-width:100%;height:auto;display:block}
figure{margin:0}
a{color:var(--brand);text-underline-offset:.15em}
a:hover{color:var(--brand-strong)}
:focus-visible{outline:3px solid var(--brand-bright);outline-offset:2px}
h1,h2,h3,h4{line-height:1.2;margin:0 0 .6em;font-weight:700;letter-spacing:-.01em}
h1{font-size:clamp(1.85rem,1.2rem + 2.6vw,2.8rem)}
h2{font-size:clamp(1.45rem,1.1rem + 1.4vw,2rem)}
h3{font-size:1.2rem}
p,ul,ol{margin:0 0 1em}
ul,ol{padding-left:1.25em}
small,.small{font-size:.9rem}
.muted{color:var(--muted)}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 1.25rem}
.skip{position:absolute;left:-999px;top:0;background:var(--ink);color:#fff;padding:.6rem 1rem;z-index:100}
.skip:focus{left:1rem;top:1rem}

/* ---- header / nav ---- */
.site-header{border-bottom:1px solid var(--line);background:#fff;position:relative;z-index:50}
.header-inner{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:.5rem 1.5rem;min-height:68px}
.brand img{width:132px;height:36px}
.nav-btn{display:inline-flex;align-items:center;gap:.5rem;background:none;border:1px solid var(--line);border-radius:6px;padding:.45rem .8rem;font:inherit;font-weight:700;color:var(--ink);cursor:pointer}
.nav-btn-bars{width:18px;height:2px;background:currentColor;box-shadow:0 -5px 0 currentColor,0 5px 0 currentColor}
.site-nav{display:none;flex-basis:100%;padding:.5rem 0 1rem}
.nav-open .site-nav,.no-js .site-nav{display:block}
.site-nav ul{list-style:none;margin:0;padding:0}
.site-nav a{display:block;padding:.5rem .25rem;text-decoration:none;color:var(--ink);font-weight:700}
.site-nav li li a{font-weight:400;padding-left:1.25rem;color:var(--muted)}
.site-nav a:hover{color:var(--brand)}
.nav-cta{margin-top:.75rem}
.nav-cta .btn{display:inline-block}
@media (min-width:900px){
  .nav-btn{display:none}
  .site-nav{display:block;flex-basis:auto;padding:0}
  .site-nav>ul{display:flex;align-items:center;gap:.25rem}
  .site-nav a{padding:.6rem .7rem;font-size:.95rem}
  .has-sub{position:relative}
  .has-sub>ul{position:absolute;top:100%;left:0;min-width:240px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 12px 30px rgba(31,41,51,.12);padding:.4rem;display:none}
  .has-sub:hover>ul,.has-sub:focus-within>ul{display:block}
  .site-nav li li a{padding:.5rem .75rem;border-radius:6px;color:var(--ink)}
  .site-nav li li a:hover{background:var(--tint-2)}
  .nav-cta{margin:0 0 0 .5rem}
  .nav-cta .btn{padding:.55rem 1rem;color:#fff}
  .nav-cta .btn:hover{color:#fff}
}

/* ---- buttons ---- */
.btn{display:inline-block;background:var(--brand);color:#fff;font-weight:700;text-decoration:none;padding:.8rem 1.3rem;border-radius:8px;border:2px solid var(--brand);line-height:1.2}
.btn:hover{background:var(--brand-strong);border-color:var(--brand-strong);color:#fff}
.btn-secondary{background:transparent;color:var(--brand)}
.btn-secondary:hover{background:var(--tint);color:var(--brand-strong)}
.btn-light{background:#fff;color:var(--brand);border-color:#fff}
.btn-light:hover{background:var(--tint);border-color:var(--tint);color:var(--brand-strong)}
.btn-row{display:flex;flex-wrap:wrap;gap:.75rem;margin:1.5rem 0 0}

/* ---- sections ---- */
.section{padding:3rem 0}
.section-tint{background:var(--tint-2)}
.section-accent{background:var(--accent-tint)}
.eyebrow{display:inline-block;font-size:.8rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--accent);margin-bottom:.6rem}
.lead{font-size:1.15rem;color:var(--muted)}
.intro{max-width:70ch}
.hero{padding:2.5rem 0 3rem;background:linear-gradient(180deg,var(--accent-tint),#fff)}
.hero-grid{display:grid;gap:2rem;align-items:center}
.hero .shot{margin-top:.5rem}
@media (min-width:900px){.hero{padding:4rem 0}.hero-grid{grid-template-columns:1.05fr 1fr;gap:3rem}}
.facts{display:grid;grid-template-columns:repeat(2,1fr);gap:1rem;list-style:none;padding:0;margin:2rem 0 0}
.facts li{border-left:3px solid var(--accent);padding:.1rem 0 .1rem .8rem;font-size:.95rem}
.facts strong{display:block;font-size:1.05rem}


.cards{display:grid;gap:1.25rem;list-style:none;padding:0;margin:1.5rem 0 0}
@media (min-width:640px){.cards{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1000px){.cards-4{grid-template-columns:repeat(4,1fr)}.cards-3{grid-template-columns:repeat(3,1fr)}}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:1.5rem;display:flex;flex-direction:column}
.card h3{font-size:1.1rem;margin-bottom:.5rem}
.card h3 a{text-decoration:none;color:var(--ink)}
.card h3 a::after{content:"";position:absolute;inset:0}
.card{position:relative}
.card:hover{border-color:var(--accent);box-shadow:0 8px 24px rgba(31,41,51,.08)}
.card p{margin:0;color:var(--muted);font-size:.95rem}
.card .more{margin-top:auto;padding-top:1rem;color:var(--accent);font-weight:700;font-size:.9rem}
.section-tint .card,.section-accent .card{border-color:transparent}

.split{display:grid;gap:2rem;align-items:center;padding-top:2.5rem;padding-bottom:2.5rem}
@media (min-width:900px){.split{grid-template-columns:1fr 1fr;gap:3.5rem}.split.reverse>:first-child{order:2}}
.shot{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff;box-shadow:0 14px 40px rgba(31,41,51,.10)}
.shot img{width:100%}
figcaption{font-size:.85rem;color:var(--muted);margin-top:.5rem}

.checklist{list-style:none;padding:0;margin:1rem 0}
.checklist li{position:relative;padding-left:1.8rem;margin-bottom:.55rem}
.checklist li::before{content:"";position:absolute;left:0;top:.3em;width:1.15rem;height:1.15rem;background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Ccircle cx='12' cy='12' r='12' fill='%23275fa3'/%3E%3Cpath d='M7 12.5l3 3 7-7' fill='none' stroke='%23fff' stroke-width='2.6'/%3E%3C/svg%3E") center/contain no-repeat}
.section-ki .checklist li::before,.ki-accent .checklist li::before{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Ccircle cx='12' cy='12' r='12' fill='%236d46c9'/%3E%3Cpath d='M7 12.5l3 3 7-7' fill='none' stroke='%23fff' stroke-width='2.6'/%3E%3C/svg%3E")}

.steps{counter-reset:s;list-style:none;padding:0;display:grid;gap:1rem}
@media (min-width:700px){.steps{grid-template-columns:repeat(3,1fr)}}
.steps li{counter-increment:s;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:1.25rem 1.25rem 1.25rem 3.4rem;position:relative}
.steps li::before{content:counter(s);position:absolute;left:1rem;top:1.1rem;width:1.7rem;height:1.7rem;border-radius:50%;background:var(--accent);color:#fff;font-weight:700;display:grid;place-items:center;font-size:.95rem}

.cta-band{background:var(--brand);color:#fff;padding:3rem 0}
.cta-band h2{color:#fff}
.cta-band p{color:#e3edfa;max-width:60ch}
.cta-band .inner{display:grid;gap:1.5rem;align-items:center}
@media (min-width:900px){.cta-band .inner{grid-template-columns:1fr auto}}

.faq details{border-top:1px solid var(--line);padding:.25rem 0}
.faq details:last-child{border-bottom:1px solid var(--line)}
.faq summary{cursor:pointer;font-weight:700;padding:.9rem 2rem .9rem 0;list-style:none;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:.25rem;top:.7rem;font-size:1.4rem;color:var(--accent);line-height:1}
.faq details[open] summary::after{content:"–"}
.faq details>div{padding:0 0 1rem;color:var(--muted);max-width:75ch}

.crumbs{font-size:.85rem;padding:1rem 1.25rem 0;max-width:var(--wrap);margin:0 auto}
.crumbs ol{list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:.25rem}
.crumbs li+li::before{content:"›";margin:0 .45rem;color:var(--muted)}
.crumbs a{color:var(--muted)}
.crumbs [aria-current]{color:var(--ink)}

.prose{max-width:74ch}
.prose h2{margin-top:2.2rem;font-size:1.45rem}
.prose h3{margin-top:1.6rem;font-size:1.15rem}
.prose li{margin-bottom:.35rem}
.prose table{border-collapse:collapse;width:100%;font-size:.95rem;margin:1rem 0}
.prose th,.prose td{border-bottom:1px solid var(--line);padding:.55rem .4rem;text-align:left;vertical-align:top}
.table-wrap{overflow-x:auto}
address{font-style:normal}
.page-head{padding:1.25rem 0 0}
.page-head .lead{max-width:70ch}
.linkbox{background:var(--tint-2);border-radius:var(--radius);padding:1.25rem 1.5rem;margin:2rem 0}
.linkbox p{margin:0 0 .5rem;font-weight:700}
.linkbox ul{margin:0}
.contact-grid{display:grid;gap:1.5rem;margin-top:1.5rem}
@media (min-width:800px){.contact-grid{grid-template-columns:1fr 1fr}}
.contact-card{background:var(--tint-2);border-radius:var(--radius);padding:1.5rem}
.contact-card .big{font-size:1.3rem;font-weight:700;text-decoration:none;display:inline-block;margin:.25rem 0}
.tags{display:flex;flex-wrap:wrap;gap:.5rem;list-style:none;padding:0;margin:1rem 0}
.tags li{background:var(--accent-tint);color:var(--accent);font-weight:700;font-size:.8rem;padding:.3rem .7rem;border-radius:999px}

/* TODO placeholders – deliberately loud so they are caught on staging */
.todo{background:var(--todo);border:2px dashed #d9a400;border-radius:var(--radius);padding:1rem 1.25rem;margin:1.5rem 0;font-size:.95rem}
.todo::before{content:"TODO(alex)";display:block;font-weight:700;font-size:.8rem;letter-spacing:.06em;margin-bottom:.3rem}

/* ---- footer ---- */
.site-footer{background:var(--ink);color:#cbd2d9;margin-top:3rem;font-size:.95rem}
.site-footer a{color:#fff}
.footer-grid{display:grid;gap:2rem;padding:3rem 1.25rem 2rem}
@media (min-width:800px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr}}
.footer-about img{width:132px;height:36px;margin-bottom:1rem}
.footer-title{font-weight:700;color:#fff;margin-bottom:.6rem}
.site-footer ul{list-style:none;padding:0;margin:0}
.site-footer li{margin-bottom:.4rem}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:1rem;border-top:1px solid #3e4c59;padding:1.25rem;font-size:.85rem}
.footer-bottom p{margin:0}
.footer-bottom ul{display:flex;flex-wrap:wrap;gap:1.25rem}
.footer-bottom li{margin:0}

/* ---- chat demo ---- */
.sr-only{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.chatdemo{background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:0 14px 40px rgba(31,41,51,.10);overflow:hidden;font-size:.95rem}
.chat-bar{display:flex;align-items:center;gap:.4rem;padding:.7rem .9rem;border-bottom:1px solid var(--line);background:var(--tint-2)}
.chat-bar span{width:.6rem;height:.6rem;border-radius:50%;background:#cbd2d9}
.chat-bar em{margin-left:.5rem;font-style:normal;font-size:.8rem;color:var(--muted);font-weight:700}
.chat-stream{padding:1rem;min-height:15rem;display:flex;flex-direction:column;gap:.7rem}
.chat-stream .msg{max-width:88%;padding:.65rem .9rem;border-radius:14px;line-height:1.45;word-wrap:break-word}
.chat-stream .user{align-self:flex-end;background:var(--accent);color:#fff;border-bottom-right-radius:4px}
.chat-stream .bot{align-self:flex-start;background:var(--accent-tint);color:var(--ink);border-bottom-left-radius:4px}
.chat-stream .tag{display:block;font-size:.7rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--accent);margin-bottom:.25rem}
.chat-stream .caret{display:inline-block;width:2px;height:1em;background:currentColor;vertical-align:-.15em;margin-left:1px;animation:blink 1s steps(1) infinite}
.chat-stream .typing{display:flex;gap:.3rem;padding:.8rem 1rem}
.chat-stream .typing i{width:.45rem;height:.45rem;border-radius:50%;background:var(--accent);opacity:.5;animation:bounce 1.2s infinite}
.chat-stream .typing i:nth-child(2){animation-delay:.15s}.chat-stream .typing i:nth-child(3){animation-delay:.3s}
@keyframes blink{50%{opacity:0}}
@keyframes bounce{0%,80%,100%{transform:translateY(0)}40%{transform:translateY(-4px);opacity:1}}
.chat-input{display:flex;justify-content:space-between;align-items:center;margin:0 1rem 1rem;padding:.6rem .9rem;border:1px solid var(--line);border-radius:10px;color:var(--muted);font-size:.9rem}
.chat-input b{width:1.7rem;height:1.7rem;border-radius:8px;background:var(--accent);color:#fff;display:grid;place-items:center;font-weight:400}
.chatdemo-note{font-size:.8rem;color:var(--muted);margin:.5rem 0 0}

/* ---- forms ---- */
.form{display:grid;gap:1rem}
@media (min-width:640px){.form{grid-template-columns:1fr 1fr}.form .full{grid-column:1/-1}}
.form label{display:block;font-weight:700;font-size:.9rem;margin-bottom:.3rem}
.form input[type=text],.form input[type=email],.form input[type=tel],.form textarea{width:100%;font:inherit;padding:.7rem .8rem;border:1px solid #9aa5b1;border-radius:8px;background:#fff;color:var(--ink)}
.form textarea{min-height:8rem;resize:vertical}
.form input:focus,.form textarea:focus{outline:3px solid var(--brand-bright);outline-offset:1px;border-color:var(--brand)}
.form .check{display:flex;gap:.6rem;align-items:flex-start;font-weight:400;font-size:.9rem}
.form .check input{margin-top:.3rem;width:1.1rem;height:1.1rem;flex:none}
.form .hp{position:absolute;left:-9999px;top:auto;width:1px;height:1px;overflow:hidden}
.form .hint{font-size:.85rem;color:var(--muted);margin:0}
.form-msg{display:none;background:#fde8e8;border:1px solid #e02424;color:#7a1414;border-radius:8px;padding:.8rem 1rem;margin-bottom:1rem}
.form-msg:target{display:block}
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:1.5rem;position:relative}
.demo-grid{display:grid;gap:2rem;margin-top:1rem}
@media (min-width:900px){.demo-grid{grid-template-columns:1.4fr 1fr;align-items:start}}