/* Bauphysik Direct — Dashboard-Startseite
   Arbeitsfläche immer hell (dunkle Schrift, hoher Kontrast); nur die Seitenleiste ist hell/dunkel umschaltbar. */
:root{
  --bg:#E9EEF0; --surface:#FFFFFF; --surface-2:#F1F5F6; --surface-3:#E8EEF0;
  --sidebar:#12262B; --sidebar-2:#1C363C; --sidebar-line:#294449;
  --on-sidebar:#DCE8EA; --on-sidebar-dim:#89A2A7; --sidebar-strong:#FFFFFF;
  --ink:#152229; --ink-2:#51636C; --ink-3:#78868E;
  --line:#DAE3E6; --line-2:#C7D4D8;
  --accent:#0E6E66; --accent-ink:#0B564F; --accent-soft:#E0EEEC;
  --copper:#B0591F; --copper-ink:#8F4718; --copper-soft:#F4E7DC;
  --radius:12px; --radius-sm:9px;
  --shadow:0 1px 2px rgba(16,38,43,.05), 0 10px 28px -18px rgba(16,38,43,.22);
  --shadow-lift:0 2px 6px rgba(16,38,43,.08), 0 20px 44px -22px rgba(16,38,43,.28);
  --sidebar-w:264px;
  --f-display:"Archivo","Segoe UI",system-ui,sans-serif;
  --f-body:"IBM Plex Sans",system-ui,-apple-system,"Segoe UI",sans-serif;
  --f-mono:"IBM Plex Mono",ui-monospace,"SFMono-Regular",Consolas,monospace;
}
/* Seitenleiste hell (per Umschalter) */
:root[data-sidebar="light"]{
  --sidebar:#F6F9FA; --sidebar-2:#E9F0F1; --sidebar-line:#E0E8EA;
  --on-sidebar:#33424A; --on-sidebar-dim:#7A8890; --sidebar-strong:#142129;
}
*{box-sizing:border-box}
[hidden]{display:none!important}
html,body{height:100%}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--f-body);font-size:15px;line-height:1.55;-webkit-font-smoothing:antialiased}
img{max-width:100%}
a{color:inherit;text-decoration:none}
h1,h2,h3{font-family:var(--f-display);margin:0;text-wrap:balance}
button{font:inherit;cursor:pointer}
::selection{background:var(--accent-soft)}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

.app{height:100%;display:grid;grid-template-columns:var(--sidebar-w) 1fr}

/* ── Seitenleiste ── */
.sidebar{background:var(--sidebar);color:var(--on-sidebar);display:flex;flex-direction:column;min-height:0;border-right:1px solid var(--sidebar-line)}
.brand{display:flex;align-items:center;gap:11px;padding:20px 18px 16px}
.brand-mark{width:38px;height:38px;flex:none;border-radius:9px;object-fit:contain}
.brand-name{font-family:var(--f-display);font-weight:700;font-size:15.5px;letter-spacing:-.01em;display:block;color:var(--sidebar-strong)}
.brand-sub{font-family:var(--f-mono);font-size:10px;letter-spacing:.04em;color:var(--on-sidebar-dim);display:block;margin-top:2px}
.nav{flex:1;min-height:0;overflow-y:auto;padding:6px 10px 14px}
.nav-group{margin-top:14px}
.nav-group--soft{margin:14px 8px 0;padding:10px 10px 8px;background:rgba(176,89,31,.15);border:1px solid rgba(176,89,31,.34);border-radius:12px}
.nav-group--soft .nav-label{color:var(--copper)}
.nav-label{font-family:var(--f-mono);font-size:10px;letter-spacing:.16em;text-transform:uppercase;color:var(--on-sidebar-dim);padding:0 10px 6px}
.nav-item{display:flex;align-items:center;gap:10px;padding:8px 10px;border-radius:8px;color:var(--on-sidebar);font-size:13.5px;transition:background .15s,color .15s;background:none;border:0;width:100%;text-align:left;font-family:inherit;text-decoration:none}
.nav-item svg{width:16px;height:16px;flex:none;stroke:currentColor;fill:none;stroke-width:1.7;opacity:.8}
.nav-item .ext{margin-left:auto;opacity:.45;font-size:11px}
.nav-item:hover{background:var(--sidebar-2)}
.nav-item.is-active{background:var(--sidebar-2);color:var(--sidebar-strong);box-shadow:inset 2px 0 0 var(--accent)}
.side-foot{padding:12px 14px 16px;border-top:1px solid var(--sidebar-line);display:flex;flex-direction:column;gap:10px}
.side-cta{display:flex;align-items:center;justify-content:center;gap:8px;background:var(--accent);color:#fff;padding:10px;border-radius:9px;font-weight:600;font-size:13.5px}
.side-cta:hover{filter:brightness(1.07)}
.side-cta svg{width:16px;height:16px;flex:none;stroke:#fff;fill:none;stroke-width:1.8}
.side-switch{display:flex;align-items:center;justify-content:space-between;gap:8px}
.side-switch-l{font-family:var(--f-mono);font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:var(--on-sidebar-dim)}
.seg-sb{display:flex;border:1px solid var(--sidebar-line);border-radius:8px;overflow:hidden}
.seg-sb button{padding:5px 11px;border:0;background:transparent;color:var(--on-sidebar-dim);font-family:var(--f-mono);font-size:11px;cursor:pointer;transition:background .15s,color .15s}
.seg-sb button.on{background:var(--sidebar-2);color:var(--sidebar-strong)}
.side-meta{font-family:var(--f-mono);font-size:10.5px;color:var(--on-sidebar-dim);text-align:center;line-height:1.6}

/* ── Hauptbereich ── */
.main{min-width:0;overflow-y:auto;display:flex;flex-direction:column}
.topbar{position:sticky;top:0;z-index:20;display:flex;align-items:center;gap:14px;padding:0 clamp(16px,2.2vw,30px);height:60px;background:color-mix(in srgb,var(--bg) 82%,transparent);backdrop-filter:saturate(1.1) blur(8px);border-bottom:1px solid var(--line)}
.menu-btn{display:none;width:38px;height:38px;border:1px solid var(--line-2);border-radius:9px;background:var(--surface);color:var(--ink);align-items:center;justify-content:center}
.menu-btn svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:2}
.tb-title{font-family:var(--f-display);font-weight:600;font-size:15px;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.tb-actions{margin-left:auto;display:flex;align-items:center;gap:8px}
.tb-link{display:inline-flex;align-items:center;gap:7px;font-family:var(--f-mono);font-size:12px;color:var(--ink-2);padding:7px 11px;border:1px solid var(--line);border-radius:8px;background:var(--surface)}
.tb-link:hover{border-color:var(--line-2);color:var(--ink)}
.tb-link svg{width:14px;height:14px;stroke:var(--accent-ink);fill:none;stroke-width:1.8}
.seg{display:flex;border:1px solid var(--line);border-radius:8px;overflow:hidden;background:var(--surface)}
.lang-opt{padding:7px 11px;font-family:var(--f-mono);font-size:11.5px;color:var(--ink-3)}
.lang-opt.on{background:var(--accent-soft);color:var(--accent-ink)}
.content{padding-block:clamp(18px,2.4vw,30px);padding-left:clamp(16px,2.4vw,30px);padding-right:clamp(16px,2.4vw,30px);padding-bottom:60px;max-width:1240px;width:100%;margin:0 auto;display:flex;flex-direction:column;gap:clamp(26px,3vw,40px)}

/* ── Intro ── */
.intro{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(0,1fr);gap:clamp(18px,2.4vw,34px);align-items:start}
.intro-main{min-width:0}
.intro-eyebrow{font-family:var(--f-mono);font-size:11.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--copper-ink);margin:0}
.intro h1{font-size:clamp(28px,3.4vw,44px);line-height:1.05;letter-spacing:-.02em;margin:12px 0 0}
.intro h1 em{font-style:normal;color:var(--accent-ink)}
.intro-name{display:block;margin-top:12px;font-family:var(--f-mono);font-size:12.5px;letter-spacing:.05em;color:var(--ink-2)}
.intro-claim{margin:16px 0 0;color:var(--ink-2);font-size:16px;max-width:56ch}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.chip{font-family:var(--f-mono);font-size:11.5px;color:var(--ink-2);background:var(--surface);border:1px solid var(--line);border-radius:999px;padding:6px 12px}
.facts{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:6px 18px}
.fact{display:flex;justify-content:space-between;gap:14px;align-items:baseline;padding:12px 0;border-bottom:1px solid var(--line)}
.fact:last-child{border-bottom:0}
.fact-k{font-family:var(--f-mono);font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-3)}
.fact-v{font-size:13.5px;font-weight:500;text-align:right}
.fact-v b{color:var(--accent-ink);font-weight:600}
.fact-link{color:var(--accent-ink);font-weight:600}
.fact-link:hover{text-decoration:underline}

/* ── Abschnitte ── */
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:14px}
.sec-head h2{font-size:18px;letter-spacing:-.01em}
.sec-head .hint{font-family:var(--f-mono);font-size:11px;color:var(--ink-3);letter-spacing:.04em;white-space:nowrap}
.sec-head p{margin:3px 0 0;color:var(--ink-2);font-size:13.5px}
.grid{display:grid;gap:12px}
.grid-l{grid-template-columns:repeat(3,1fr)}
.grid-t{grid-template-columns:repeat(3,1fr)}

/* Karten */
.card{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:16px 16px 15px;display:flex;flex-direction:column;gap:6px;text-align:left;transition:border-color .18s,box-shadow .18s;min-height:118px}
.card:hover{border-color:var(--accent);box-shadow:var(--shadow-lift)}
.card-top{display:flex;align-items:center;gap:10px}
.card-ic{width:34px;height:34px;flex:none;border-radius:9px;background:var(--accent-soft);display:flex;align-items:center;justify-content:center}
.card-ic svg{width:18px;height:18px;stroke:var(--accent-ink);fill:none;stroke-width:1.7}
.card-eyebrow{font-family:var(--f-mono);font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-3)}
.card h3{font-size:15.5px;line-height:1.2;letter-spacing:-.01em;margin-top:2px}
.card p{margin:0;color:var(--ink-2);font-size:13px;line-height:1.5}
.card .go{margin-top:auto;padding-top:8px;display:flex;align-items:center;gap:6px;font-family:var(--f-mono);font-size:11px;letter-spacing:.06em;color:var(--accent-ink)}
.card .go svg{width:14px;height:14px;stroke:currentColor;fill:none;stroke-width:1.8;transition:transform .18s}
.card:hover .go svg{transform:translateX(3px)}
.tool .card-ic{background:var(--copper-soft)}
.tool .card-ic svg{stroke:var(--copper-ink)}
.tool .badge{margin-left:auto;font-family:var(--f-mono);font-size:9.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-3);border:1px solid var(--line);border-radius:999px;padding:3px 8px}
.tool .go{color:var(--copper-ink)}

/* Software */
.soft{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:clamp(18px,2vw,26px);display:grid;grid-template-columns:1fr auto;gap:22px;align-items:center}
.soft-main{min-width:0}
.soft-badge{font-family:var(--f-mono);font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--accent-ink);margin:0}
.soft h3{font-size:21px;letter-spacing:-.01em;margin-top:6px}
.soft p{margin:8px 0 0;color:var(--ink-2);font-size:14px;max-width:62ch}
.soft-meta{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}
.soft-actions{display:flex;flex-direction:column;gap:10px;align-items:stretch;min-width:210px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;border-radius:10px;padding:12px 18px;font-family:var(--f-display);font-weight:700;font-size:14px;border:1px solid transparent}
.btn svg{width:17px;height:17px;stroke:currentColor;fill:none;stroke-width:2}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{filter:brightness(1.07)}
.btn-ghost{background:transparent;border-color:var(--line-2);color:var(--ink)}
.btn-ghost:hover{background:var(--surface-2)}

/* Kontakt */
.contact-wrap{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.contact-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:18px 20px}
.contact-card h3{font-size:16px;margin-bottom:6px}
.contact-card .lead{color:var(--ink-2);font-size:14px;margin:0 0 12px}
.dial{display:flex;flex-direction:column}
.dial a{display:flex;align-items:center;gap:12px;padding:10px 0;border-bottom:1px solid var(--line)}
.dial a:last-child{border-bottom:0}
.dial a:hover .v{color:var(--accent-ink)}
.dial svg{width:18px;height:18px;flex:none;stroke:var(--accent-ink);fill:none;stroke-width:1.7}
.dial .v{display:flex;flex-direction:column;font-size:14.5px;font-weight:500;min-width:0;word-break:break-word}
.dial .k{font-family:var(--f-mono);font-size:9.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-3);font-weight:400}

footer{display:flex;flex-wrap:wrap;gap:10px 20px;align-items:center;justify-content:space-between;border-top:1px solid var(--line);padding-top:18px;font-family:var(--f-mono);font-size:11px;letter-spacing:.05em;color:var(--ink-3)}
.ftr-links{display:flex;gap:16px;flex-wrap:wrap}
.ftr-links a:hover{color:var(--ink)}

/* ── Detailebene ── */
.scrim{position:fixed;inset:0;background:rgba(10,20,24,.42);backdrop-filter:blur(2px);z-index:60;opacity:0;transition:opacity .22s}
.scrim.show{opacity:1}
.detail{position:fixed;top:0;right:0;height:100%;width:min(560px,94vw);z-index:70;background:var(--surface);border-left:1px solid var(--line);box-shadow:-30px 0 60px -30px rgba(0,0,0,.4);display:flex;flex-direction:column;transform:translateX(100%);transition:transform .26s cubic-bezier(.4,0,.2,1)}
.detail.show{transform:none}
.detail-head{display:flex;align-items:flex-start;justify-content:space-between;gap:14px;padding:22px 24px 14px;border-bottom:1px solid var(--line)}
.detail-eyebrow{font-family:var(--f-mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--copper-ink);margin:0}
.detail-head h2{font-size:22px;letter-spacing:-.015em;margin-top:6px}
.detail-x{width:36px;height:36px;flex:none;border:1px solid var(--line);border-radius:9px;background:var(--surface);color:var(--ink-2);display:flex;align-items:center;justify-content:center}
.detail-x:hover{color:var(--ink);border-color:var(--line-2)}
.detail-x svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:2}
.detail-body{overflow-y:auto;padding:20px 24px 34px}
.detail-body .lead{font-size:16px;color:var(--ink);border-left:3px solid var(--accent);padding-left:14px;margin:0 0 16px}
.detail-body h3{font-family:var(--f-display);font-size:14px;letter-spacing:.02em;text-transform:uppercase;color:var(--ink-3);margin:22px 0 8px}
.detail-body p{margin:0 0 12px;color:var(--ink-2);font-size:14.5px}
.detail-body ul{margin:0 0 14px;padding-left:0;list-style:none;display:flex;flex-direction:column;gap:7px}
.detail-body li{position:relative;padding-left:22px;color:var(--ink-2);font-size:14.5px}
.detail-body li::before{content:"";position:absolute;left:4px;top:9px;width:6px;height:6px;border-radius:2px;background:var(--accent)}
.detail-body a{color:var(--accent-ink);text-decoration:underline;text-underline-offset:2px}
.detail-body strong{color:var(--ink);font-weight:600}
.detail-body .warn{color:var(--copper-ink)}
.detail-body .note,.detail-body .src{font-size:13px;color:var(--ink-3)}
.detail-foot{margin-top:6px;padding-top:16px;border-top:1px solid var(--line);display:flex;gap:10px;flex-wrap:wrap}

/* ── Responsiv ── */
@media (max-width:1080px){ .grid-l,.grid-t{grid-template-columns:repeat(2,1fr)} .intro{grid-template-columns:1fr} }
@media (max-width:860px){
  .app{grid-template-columns:1fr}
  .sidebar{position:fixed;top:0;left:0;height:100%;width:280px;z-index:80;transform:translateX(-100%);transition:transform .24s}
  .sidebar.open{transform:none;box-shadow:30px 0 60px -30px rgba(0,0,0,.5)}
  .menu-btn{display:inline-flex}
  .soft{grid-template-columns:1fr}
  .soft-actions{min-width:0}
  .tb-link.wide{display:none}
}
@media (max-width:560px){
  .grid-l,.grid-t{grid-template-columns:1fr}
  .contact-wrap{grid-template-columns:1fr}
  .tb-title{display:none}
}
@media (prefers-reduced-motion:reduce){ *{transition:none!important} }