/* Rheintalforge Solutions — shared stylesheet
   Identität: "Forge" — Ink / Messing (brass) auf Papier.
   Basis extrahiert aus der ursprünglichen One-Page, erweitert für Mehrseiten-Architektur. */

:root{
  --ink:#0E1D22;--deep:#13303A;--paper:#E9EBE7;--paper-2:#DFE3DE;
  --brass:#B8873F;--brass-lite:#D9AE68;--rule:rgba(14,29,34,.16);
  --display:"Archivo","Helvetica Neue",Arial,sans-serif;
  --body:"IBM Plex Sans",system-ui,-apple-system,sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,Menlo,monospace;
  --wrap:1140px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--body);font-size:17px;line-height:1.62;-webkit-font-smoothing:antialiased}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 28px}
img{max-width:100%;display:block}

.dim{position:relative;height:1px;background:var(--brass);opacity:.75}
.dim::before,.dim::after{content:"";position:absolute;top:-5px;width:1px;height:11px;background:var(--brass)}
.dim::before{left:0}.dim::after{right:0}

.eyebrow{font-family:var(--mono);font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--brass);margin:0 0 18px}

.top{position:sticky;top:0;z-index:20;background:rgba(233,235,231,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--rule)}
.top .wrap{display:flex;align-items:center;justify-content:space-between;height:66px;gap:18px}
.mark{font-family:var(--display);font-weight:800;letter-spacing:-.02em;font-size:19px;white-space:nowrap;text-decoration:none;color:var(--ink)}
.mark span{color:var(--brass)}
.navlinks{display:flex;gap:24px;align-items:center}
.navlinks a{font-family:var(--mono);font-size:12.5px;letter-spacing:.06em;text-transform:uppercase;color:var(--ink);text-decoration:none;opacity:.72}
.navlinks a:hover{opacity:1;color:var(--brass)}
.navlinks a.active{opacity:1;color:var(--brass)}
.btn-mini{border:1px solid var(--ink);padding:9px 16px;border-radius:2px;opacity:1 !important}
.btn-mini:hover{background:var(--ink);color:var(--paper) !important}

.nav-toggle{display:none;background:none;border:1px solid var(--rule);border-radius:2px;width:40px;height:34px;cursor:pointer;align-items:center;justify-content:center}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{content:"";display:block;width:18px;height:2px;background:var(--ink);position:relative;transition:transform .2s ease,opacity .2s ease}
.nav-toggle span::before{position:absolute;top:-6px}
.nav-toggle span::after{position:absolute;top:6px}
.nav-toggle[aria-expanded="true"] span{background:transparent}
.nav-toggle[aria-expanded="true"] span::before{transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span::after{transform:translateY(-6px) rotate(-45deg)}

.lang{display:inline-flex;align-items:center;gap:5px;font-family:var(--mono);font-size:12px;letter-spacing:.06em}
.lang svg{width:14px;height:14px;opacity:.55;flex:none}
.lang button{background:none;border:none;cursor:pointer;font:inherit;color:var(--ink);opacity:.5;padding:2px 1px}
.lang button.active{opacity:1;color:var(--brass);font-weight:500}
.lang .sep{opacity:.35}

@media(max-width:820px){
  .nav-toggle{display:inline-flex}
  .navlinks{position:fixed;left:0;right:0;top:66px;flex-direction:column;align-items:flex-start;gap:20px;background:var(--paper);border-bottom:1px solid var(--rule);padding:26px 28px 32px;transform:translateY(-130%);transition:transform .26s ease;box-shadow:0 20px 40px rgba(14,29,34,.08)}
  .navlinks.open{transform:none}
  .navlinks a{font-size:14px}
  .btn-mini{align-self:stretch;text-align:center}
}

.hero{padding:104px 0 72px}
.hero h1{font-family:var(--display);font-weight:800;letter-spacing:-.035em;font-size:clamp(38px,6.8vw,76px);line-height:1;margin:0 0 26px;max-width:16ch}
.hero h1 em{font-style:normal;color:var(--brass)}
.lede{font-size:clamp(18px,2.1vw,21px);max-width:62ch;margin:0 0 38px;color:rgba(14,29,34,.82)}
.cta-row{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.btn{display:inline-block;font-family:var(--mono);font-size:13px;letter-spacing:.08em;text-transform:uppercase;text-decoration:none;padding:15px 28px;border-radius:2px;border:1px solid var(--ink);transition:transform .15s ease,background .15s ease,color .15s ease;cursor:pointer}
.btn-solid{background:var(--ink);color:var(--paper)}
.btn-solid:hover{background:var(--deep);transform:translateY(-2px)}
.btn-ghost{color:var(--ink);background:none}
.btn-ghost:hover{background:var(--ink);color:var(--paper);transform:translateY(-2px)}

/* Kleinerer Seiten-Kopf für Unterseiten */
.page-hero{padding:72px 0 20px}
.page-hero h1{font-family:var(--display);font-weight:800;letter-spacing:-.035em;font-size:clamp(32px,5.4vw,58px);line-height:1.02;margin:0 0 20px;max-width:20ch}
.page-hero h1 em{font-style:normal;color:var(--brass)}
.page-hero .lede{margin-bottom:0}

.region{background:var(--deep);color:var(--paper);padding:66px 0}
.region .eyebrow{color:var(--brass-lite)}
.region h2{font-family:var(--display);font-weight:800;font-size:clamp(24px,3.6vw,36px);letter-spacing:-.03em;margin:0 0 12px;color:var(--paper)}
.region .sub{color:rgba(233,235,231,.74);margin:0 0 40px;max-width:58ch}
.geo{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:0;border-top:1px solid rgba(233,235,231,.2)}
.geo div{padding:22px 22px 22px 0;border-right:1px solid rgba(233,235,231,.2)}
.geo div:last-child{border-right:0}
@media(max-width:820px){.geo div{border-right:0;border-bottom:1px solid rgba(233,235,231,.2)}}
.geo .place{font-family:var(--display);font-weight:700;font-size:19px;letter-spacing:-.01em;margin:0 0 6px}
.geo .country{font-family:var(--mono);font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;color:rgba(233,235,231,.55);margin:0 0 10px}
.geo .dist{font-family:var(--mono);font-size:13px;color:var(--brass-lite);margin:0}

section{padding:92px 0}
.sec-head{margin-bottom:52px;max-width:62ch}
.sec-head h2{font-family:var(--display);font-weight:800;letter-spacing:-.03em;font-size:clamp(28px,4.4vw,44px);line-height:1.05;margin:0 0 16px}
.sec-head p{margin:0;color:rgba(14,29,34,.78);font-size:18px}

.svc-band{background:var(--paper-2)}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:0;border-top:1px solid var(--rule)}
.card{padding:34px 30px 38px;border-bottom:1px solid var(--rule);border-right:1px solid var(--rule)}
.card:last-child{border-right:0}
@media(max-width:960px){.card{border-right:0}}
.card .dim{width:44px;margin-bottom:20px}
.card h3{font-family:var(--display);font-weight:700;font-size:22px;letter-spacing:-.02em;margin:0 0 12px}
.card p{margin:0 0 20px;color:rgba(14,29,34,.8);font-size:16px}
.card ul{list-style:none;margin:0;padding:0}
.card li{font-family:var(--mono);font-size:13px;line-height:1.9;color:rgba(14,29,34,.72);padding-left:18px;position:relative}
.card li::before{content:"\2014";position:absolute;left:0;color:var(--brass)}
.card.plain p{margin-bottom:0}

.work-item{display:grid;grid-template-columns:190px 1fr;gap:34px;padding:34px 0;border-top:1px solid var(--rule)}
.work-item:last-of-type{border-bottom:1px solid var(--rule)}
@media(max-width:820px){.work-item{grid-template-columns:1fr;gap:14px}}
.work-meta{font-family:var(--mono);font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--brass);padding-top:6px}
.work-body h3{font-family:var(--display);font-weight:700;font-size:23px;letter-spacing:-.02em;margin:0 0 10px}
.work-body p{margin:0;color:rgba(14,29,34,.8);max-width:66ch}
.work-body ul{margin:16px 0 0;padding:0;list-style:none;display:flex;flex-wrap:wrap;gap:8px}
.work-body li{font-family:var(--mono);font-size:11.5px;letter-spacing:.08em;text-transform:uppercase;color:rgba(14,29,34,.66);border:1px solid var(--rule);border-radius:2px;padding:5px 10px}

.proc-band{background:var(--ink);color:var(--paper)}
.proc-band .sec-head h2{color:var(--paper)}
.proc-band .sec-head p{color:rgba(233,235,231,.72)}
.proc-band .eyebrow{color:var(--brass-lite)}
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:34px}
.step-n{font-family:var(--mono);font-size:12px;letter-spacing:.16em;color:var(--brass-lite);display:block;margin-bottom:14px}
.step h3{font-family:var(--display);font-weight:700;font-size:20px;margin:0 0 10px;letter-spacing:-.01em}
.step p{margin:0;color:rgba(233,235,231,.74);font-size:15.5px}

.founder{margin-top:8px;margin-bottom:52px;max-width:66ch}
.founder .lead{font-family:var(--display);font-weight:700;font-size:clamp(19px,2.4vw,24px);letter-spacing:-.02em;line-height:1.3;margin:0 0 16px}
.founder p{margin:0;color:rgba(14,29,34,.8);font-size:17px}

.stack-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:28px 44px}
.stack-line{font-family:var(--mono);font-size:14px;line-height:2.3;color:rgba(14,29,34,.74);margin:0}
.stack-line b{color:var(--ink);font-weight:500}

.contact-band{background:var(--deep);color:var(--paper)}
.contact-band h2{font-family:var(--display);font-weight:800;letter-spacing:-.03em;font-size:clamp(30px,5vw,52px);line-height:1.03;margin:0 0 22px;max-width:18ch}
.contact-band .eyebrow{color:var(--brass-lite)}
.contact-band p{color:rgba(233,235,231,.78);max-width:56ch;margin:0 0 34px}
.contact-links{display:flex;flex-wrap:wrap;gap:40px;margin-top:46px;padding-top:30px;border-top:1px solid rgba(233,235,231,.18)}
.cl dt{font-family:var(--mono);font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;color:rgba(233,235,231,.5);margin-bottom:6px}
.cl dd{margin:0;font-size:17px}
.cl a{color:var(--paper);text-decoration:none;border-bottom:1px solid var(--brass)}
.cl a:hover{color:var(--brass-lite)}
.btn-brass{background:var(--brass);border-color:var(--brass);color:var(--ink)}
.btn-brass:hover{background:var(--brass-lite);border-color:var(--brass-lite);transform:translateY(-2px)}

/* Kontaktformular */
.form{display:grid;gap:20px;max-width:620px}
.form .field{display:flex;flex-direction:column;gap:7px}
.form label{font-family:var(--mono);font-size:11.5px;letter-spacing:.12em;text-transform:uppercase;color:rgba(233,235,231,.62)}
.form input,.form textarea,.form select{font-family:var(--body);font-size:16px;color:var(--paper);background:rgba(233,235,231,.06);border:1px solid rgba(233,235,231,.24);border-radius:2px;padding:13px 14px}
.form input:focus,.form textarea:focus,.form select:focus{outline:none;border-color:var(--brass);background:rgba(233,235,231,.1)}
.form textarea{min-height:140px;resize:vertical}
.form .form-actions{display:flex;align-items:center;gap:18px;flex-wrap:wrap;margin-top:4px}
.form-note{font-family:var(--mono);font-size:12px;color:rgba(233,235,231,.5);margin:0}
.form-status{font-family:var(--mono);font-size:13px;margin:0}
.form-status.ok{color:var(--brass-lite)}
.form-status.err{color:#E7A17A}

/* Referenzen / Galerie */
.gallery{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:1px;background:var(--rule);border:1px solid var(--rule)}
.tile{background:var(--paper-2);padding:30px 26px;min-height:190px;display:flex;flex-direction:column;justify-content:flex-end;position:relative}
.tile .tile-tag{font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--brass);margin:0 0 10px}
.tile h3{font-family:var(--display);font-weight:700;font-size:20px;letter-spacing:-.02em;margin:0 0 8px}
.tile p{margin:0;font-size:14.5px;color:rgba(14,29,34,.74)}

/* Rechtstexte (Impressum / Datenschutz) */
.legal{max-width:760px}
.legal h2{font-family:var(--display);font-weight:700;font-size:22px;letter-spacing:-.02em;margin:38px 0 12px}
.legal h2:first-of-type{margin-top:0}
.legal p{margin:0 0 14px;color:rgba(14,29,34,.82)}
.legal a{color:var(--ink);border-bottom:1px solid var(--brass);text-decoration:none}
.legal .muted{font-family:var(--mono);font-size:13px;color:rgba(14,29,34,.55)}

footer{padding:34px 0;font-family:var(--mono);font-size:12px;color:rgba(14,29,34,.55);border-top:1px solid var(--rule)}
footer .wrap{display:flex;flex-wrap:wrap;gap:16px;justify-content:space-between}
footer a{color:inherit;text-decoration:none}
footer a:hover{color:var(--brass)}
.foot-nav{display:flex;gap:16px;flex-wrap:wrap}

.rise{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}
.rise.in{opacity:1;transform:none}

/* ── RF Assistent (Chatbot) ─────────────────────────────── */
.rf-fab{position:fixed;right:22px;bottom:22px;z-index:60;display:inline-flex;align-items:center;gap:10px;background:var(--brass);color:var(--ink);border:none;border-radius:40px;padding:13px 20px 13px 16px;font-family:var(--mono);font-size:13px;letter-spacing:.04em;cursor:pointer;box-shadow:0 10px 30px rgba(14,29,34,.28);transition:transform .16s ease,background .16s ease}
.rf-fab:hover{background:var(--brass-lite);transform:translateY(-2px)}
.rf-fab svg{width:20px;height:20px;flex:none}
.rf-fab .rf-fab-label{white-space:nowrap}
@media(max-width:520px){.rf-fab .rf-fab-label{display:none}.rf-fab{padding:14px;border-radius:50%}}

.rf-panel{position:fixed;right:22px;bottom:22px;z-index:61;width:min(380px,calc(100vw - 32px));height:min(560px,calc(100vh - 40px));background:var(--paper);border:1px solid var(--rule);border-radius:10px;box-shadow:0 24px 60px rgba(14,29,34,.32);display:flex;flex-direction:column;overflow:hidden;transform:translateY(16px) scale(.98);opacity:0;pointer-events:none;transition:transform .2s ease,opacity .2s ease}
.rf-panel.open{transform:none;opacity:1;pointer-events:auto}
.rf-head{background:var(--ink);color:var(--paper);padding:15px 16px;display:flex;align-items:center;gap:11px}
.rf-avatar{width:34px;height:34px;border-radius:50%;background:var(--brass);color:var(--ink);display:flex;align-items:center;justify-content:center;font-family:var(--display);font-weight:800;font-size:14px;flex:none}
.rf-head .rf-title{font-family:var(--display);font-weight:700;font-size:15px;line-height:1.1}
.rf-head .rf-status{font-family:var(--mono);font-size:11px;color:var(--brass-lite);display:flex;align-items:center;gap:6px;margin-top:2px}
.rf-head .rf-status::before{content:"";width:7px;height:7px;border-radius:50%;background:#5FBE7E;box-shadow:0 0 0 0 rgba(95,190,126,.6);animation:rfpulse 2.2s infinite}
@keyframes rfpulse{0%{box-shadow:0 0 0 0 rgba(95,190,126,.55)}70%{box-shadow:0 0 0 7px rgba(95,190,126,0)}100%{box-shadow:0 0 0 0 rgba(95,190,126,0)}}
.rf-close{margin-left:auto;background:none;border:none;color:rgba(233,235,231,.7);cursor:pointer;font-size:20px;line-height:1;padding:4px}
.rf-close:hover{color:var(--paper)}
.rf-log{flex:1;overflow-y:auto;padding:18px 16px;display:flex;flex-direction:column;gap:12px}
.rf-msg{max-width:82%;padding:11px 13px;border-radius:12px;font-size:14.5px;line-height:1.5;white-space:pre-wrap;word-wrap:break-word}
.rf-msg.bot{background:var(--paper-2);color:var(--ink);border-bottom-left-radius:3px;align-self:flex-start}
.rf-msg.user{background:var(--ink);color:var(--paper);border-bottom-right-radius:3px;align-self:flex-end}
.rf-msg a{color:var(--brass)}
.rf-typing{align-self:flex-start;display:inline-flex;gap:4px;padding:13px}
.rf-typing span{width:7px;height:7px;border-radius:50%;background:var(--brass);opacity:.5;animation:rfdot 1.2s infinite}
.rf-typing span:nth-child(2){animation-delay:.2s}.rf-typing span:nth-child(3){animation-delay:.4s}
@keyframes rfdot{0%,60%,100%{transform:translateY(0);opacity:.4}30%{transform:translateY(-4px);opacity:1}}
.rf-quick{display:flex;flex-wrap:wrap;gap:7px;padding:0 16px 12px}
.rf-quick button{font-family:var(--mono);font-size:11.5px;letter-spacing:.03em;background:none;border:1px solid var(--rule);border-radius:20px;padding:7px 12px;cursor:pointer;color:var(--ink)}
.rf-quick button:hover{border-color:var(--brass);color:var(--brass)}
.rf-input-row{display:flex;gap:8px;padding:12px;border-top:1px solid var(--rule);background:var(--paper)}
.rf-input-row input{flex:1;font-family:var(--body);font-size:14.5px;border:1px solid var(--rule);border-radius:20px;padding:11px 14px;background:#fff;color:var(--ink)}
.rf-input-row input:focus{outline:none;border-color:var(--brass)}
.rf-send{background:var(--ink);color:var(--paper);border:none;border-radius:50%;width:40px;height:40px;flex:none;cursor:pointer;display:flex;align-items:center;justify-content:center}
.rf-send:hover{background:var(--deep)}
.rf-send svg{width:17px;height:17px}
.rf-consent{font-family:var(--mono);font-size:10.5px;color:rgba(14,29,34,.5);text-align:center;padding:0 14px 10px;margin:0}
.rf-consent a{color:var(--brass)}

@media(prefers-reduced-motion:reduce){
  .rise{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
  .btn:hover{transform:none}
  .rf-fab:hover{transform:none}
  .rf-status::before,.rf-typing span{animation:none}
}
a:focus-visible,.btn:focus-visible,.lang button:focus-visible,.nav-toggle:focus-visible,.rf-fab:focus-visible{outline:2px solid var(--brass);outline-offset:3px}