/* ==========================================================================
   Bremen SysCom – gemeinsamer Rahmen aller Seiten (Startseite, Kontakt, Team, Impressum, Datenschutz):
   Kopfzeile mit Hauptmenü und Untermenüs, Buttons, Kontaktlinks, Fuß, Schnellzugriff (mobil).
   Reihenfolge: tokens.css (Farben, Schriften, Maße) → base.css (Grundlage) → site.css → Seiten-CSS
   (scroll.css nur Startseite mit 3D-Inszenierung, seiten.css Kontakt/Team, legal.css Rechtstexte).
   ========================================================================== */

/* ---------- Kopfzeile ---------- */
.site-header {
  position: fixed; inset: 0 0 auto; z-index: 50;
  height: var(--header-h);
}
.site-header::before {
  content: ""; position: absolute; inset: 0 0 -28px;
  background: linear-gradient(180deg, rgba(7, 9, 19, .94) 0%, rgba(7, 9, 19, .72) 60%, rgba(7, 9, 19, 0) 100%);
  pointer-events: none;
}
.site-header__inner {
  position: relative; height: 100%;
  display: flex; align-items: center; gap: clamp(12px, 2.4vw, 36px);
  padding-inline: var(--margin);
  padding-left: max(var(--margin), env(safe-area-inset-left));
  padding-right: max(var(--margin), env(safe-area-inset-right));
}
.brand { display: inline-flex; align-items: center; gap: .6rem; font-family: var(--font-display); font-weight: 620; font-size: 1.14rem; letter-spacing: -.01em; white-space: nowrap; }
.brand__mark { width: 30px; height: 30px; color: var(--signal); }
.primary-nav { margin-left: auto; }
.primary-nav ul { display: flex; align-items: center; gap: clamp(14px, 2vw, 30px); }
.primary-nav a { font-size: .93rem; font-weight: 560; color: var(--bone); padding: .4rem 0; position: relative; }
.primary-nav a::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 1px; background: var(--signal); transform: scaleX(0); transform-origin: left; transition: transform .3s var(--ease); }
.primary-nav a:hover::after, .primary-nav a[aria-current]::after { transform: scaleX(1); }
.motion-toggle { display: inline-flex; align-items: center; gap: .45rem; font-size: .82rem; color: var(--mist); padding: .45rem .6rem; border: 1px solid var(--line); border-radius: 999px; }
.motion-toggle .icon { width: 12px; height: 12px; }
.motion-toggle:hover { color: var(--bone); border-color: var(--line-strong); }
.motion-toggle__label { white-space: nowrap; }
.site-header__tools { display: flex; align-items: center; gap: clamp(10px, 1.6vw, 20px); }
.header-tel { display: inline-flex; align-items: center; gap: .5rem; font-weight: 640; font-size: .93rem; color: var(--bone); white-space: nowrap; }
.header-tel .icon { color: var(--signal); }
.btn-support {
  display: inline-flex; align-items: center; gap: .5rem;
  font-weight: 680; font-size: .92rem; color: var(--ink); background: var(--signal);
  padding: .6rem 1rem; border-radius: var(--radius); white-space: nowrap;
}
.btn-support:hover { background: var(--signal-soft); }
.nav-toggle { width: 44px; height: 44px; display: grid; place-items: center; border: 1px solid var(--line-strong); border-radius: var(--radius); }
.nav-toggle__bars, .nav-toggle__bars::before, .nav-toggle__bars::after { display: block; width: 18px; height: 1.5px; background: var(--bone); position: relative; transition: transform .25s var(--ease); }
.nav-toggle__bars::before, .nav-toggle__bars::after { content: ""; position: absolute; left: 0; }
.nav-toggle__bars::before { top: -6px; } .nav-toggle__bars::after { top: 6px; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars { background: transparent; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before { transform: translateY(6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after { transform: translateY(-6px) rotate(-45deg); }
@media (min-width: 900px) { .nav-toggle { display: none !important; } }
/* Platz für Leistungen, Miteinander, Das Team, Kontakt, Kunden, Weiteres (einzeilig, ohne Überlappung ab 900 px):
   Telefonnummer als Text erst ab 1366 px (das Symbol mit Beschriftung bleibt), Pause-Schalter der Startseite bis
   1599 px nur als Symbol (Beschriftung für Screenreader und als Tooltip), zwischen 900 und 1179 px engere Abstände,
   zwischen 900 und 999 px nur das Bojen-Symbol ohne Schriftzug */
.brand, .site-header__tools { flex: none; }
.primary-nav a { white-space: nowrap; }
@media (max-width: 1365px) { .header-tel__number { display: none; } }
@media (max-width: 1599px) and (min-width: 900px) {
  .motion-toggle__label { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
  .motion-toggle { padding: .5rem; }
}
@media (max-width: 1179px) and (min-width: 900px) {
  .site-header__inner { gap: 14px; }
  .primary-nav ul { gap: 16px; }
  .site-header__tools { gap: 10px; }
}
@media (max-width: 999px) and (min-width: 900px) {
  .site-header .brand__name { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
}

/* ---------- Untermenüs im Hauptmenü (nav.js; ohne JavaScript nur der einfache Link) ---------- */
.subnav { position: relative; }
.subnav__toggle { display: inline-flex; align-items: center; gap: .3rem; font-size: .93rem; font-weight: 560; color: var(--bone); padding: .4rem 0; position: relative; white-space: nowrap; }
.subnav__toggle::after { content: ""; position: absolute; left: 0; right: 1.2em; bottom: 0; height: 1px; background: var(--signal); transform: scaleX(0); transform-origin: left; transition: transform .3s var(--ease); }
.subnav__toggle:hover::after, .subnav__toggle.is-current::after, .subnav__toggle[aria-expanded="true"]::after { transform: scaleX(1); }
.subnav__chev { width: 1em; height: 1em; color: var(--signal); transition: transform .2s var(--ease); }
.subnav__toggle[aria-expanded="true"] .subnav__chev { transform: rotate(180deg); }
.primary-nav .subnav__list { display: none; }
.primary-nav [data-sub-open] > .subnav__list { display: grid; }
.subnav__n { font-family: var(--font-mono); font-size: .72rem; font-weight: 600; color: var(--signal); min-width: 1.5rem; }
.subnav__icon { width: 1em; height: 1em; color: var(--signal); }
html:not(.nav-ready) .subnav__toggle { display: none; }
@media (min-width: 900px) {
  .primary-nav .subnav__list {
    position: absolute; top: calc(100% + 14px); left: -.9rem; z-index: 5;
    min-width: 15.5rem; padding: .45rem; gap: 0;
    background: rgba(8, 10, 21, .97); border: 1px solid var(--line-strong); border-radius: var(--radius);
    box-shadow: 0 26px 50px -22px rgba(0, 0, 0, .85);
  }
  .primary-nav .subnav__list::before { content: ""; position: absolute; left: -1px; top: -1px; width: 56px; height: 2px; background: var(--signal); }
  .primary-nav .subnav__list--more { min-width: 13.5rem; }
  .primary-nav .subnav__list a { display: flex; align-items: center; gap: .55rem; padding: .6rem .7rem; font-size: .93rem; color: var(--bone-dim); border-radius: var(--radius); }
  .primary-nav .subnav__list a::after { display: none; }
  .primary-nav .subnav__list a:hover, .primary-nav .subnav__list a:focus-visible { color: var(--bone); background: rgba(95, 228, 200, .08); }
  .primary-nav .subnav__list a[aria-current] { color: var(--bone); box-shadow: inset 2px 0 0 var(--signal); }
  .primary-nav .subnav__list :focus-visible { outline-offset: -2px; }
}

/* ---------- Überzeile, Buttons ---------- */
.eyebrow { display: flex; align-items: center; gap: .7em; font-family: var(--font-mono); font-size: var(--text-label); font-weight: 600; letter-spacing: .1em; text-transform: uppercase; color: var(--signal-soft); margin-bottom: 1rem; }
.eyebrow::before { content: ""; width: 1.75rem; height: 1px; background: currentColor; }
.btn { display: inline-flex; align-items: center; gap: .6rem; min-height: 48px; padding: .75rem 1.35rem; font-weight: 680; font-size: .96rem; border-radius: var(--radius); transition: background .2s ease, border-color .2s ease; }
.btn--signal { background: var(--signal); color: var(--ink); }
.btn--signal:hover { background: var(--signal-soft); }
.btn--line { border: 1px solid var(--line-strong); color: var(--bone); background: rgba(7, 9, 19, .5); }
.btn--line:hover { border-color: var(--bone-dim); }

/* ---------- Kontaktwege (Startseite: Station Kontakt; Kontaktseite) ---------- */
.contact__big { display: grid; gap: .5rem; margin: 1.4rem 0 1.6rem; }
.contact__link { display: inline-flex; align-items: center; gap: .8rem; font-family: var(--font-display); font-weight: 600; font-size: clamp(1.5rem, 1rem + 1.6vw, 2.3rem); line-height: 1.15; border-bottom: 1px solid transparent; }
.contact__link .icon { color: var(--signal); width: .8em; height: .8em; }
.contact__link:hover { border-bottom-color: var(--signal); }
.contact__details { display: grid; grid-template-columns: 1fr 1fr; gap: 1.2rem; padding-top: 1.2rem; border-top: 1px solid var(--line); font-size: .92rem; color: var(--mist); }
.contact__details h2, .contact__details h3 { display: flex; align-items: center; gap: .45rem; font-family: var(--font-mono); font-weight: 600; font-size: .7rem; letter-spacing: .1em; text-transform: uppercase; color: var(--bone-dim); margin-bottom: .4rem; }
.contact__details .icon { color: var(--signal); width: 1.1em; height: 1.1em; }

/* ---------- Fuß ----------
   Eine Gestaltung für alle Seiten (Vorlage: Startseite); die Seiten-Stylesheets ändern daran nichts. Nur die
   Startseite ordnet den Fuß zusätzlich in ihre letzte Station ein (scroll.css: füllt den Schirm, Platz für die
   Kapitel-Leiste). Unten bleibt Platz für den Schnellzugriff (--dock-h, mobil). */
.site-footer { position: relative; background: #05060d; border-top: 1px solid var(--line); padding: 2.4rem 0 calc(2rem + var(--dock-h)); font-size: .92rem; color: var(--mist); }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 2rem; }
.footer-grid h2 { font-family: var(--font-mono); font-weight: 600; font-size: .7rem; letter-spacing: .1em; text-transform: uppercase; color: var(--bone-dim); margin-bottom: .8rem; }
.footer-grid ul { display: grid; gap: .4rem; }
.footer-grid a:hover { color: var(--bone); }
.footer-grid a[aria-current] { color: var(--bone); }
.footer-claim { font-family: var(--font-display); font-style: italic; font-size: 1.1rem; color: var(--bone); margin: .9rem 0; }
.footer-note { margin-top: 1.8rem; font-size: .8rem; color: var(--mist-dim); max-width: 60em; }
.footer-bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1rem; margin-top: 1.4rem; padding-top: 1.2rem; border-top: 1px solid var(--line); font-size: .78rem; color: var(--mist-dim); }
.footer-bottom a { text-decoration: underline; text-underline-offset: 3px; }

/* ---------- Schnellzugriff (mobil) ---------- */
.dock { display: none; }

/* ==========================================================================
   Hochformat / schmale Fenster
   ========================================================================== */
@media (max-width: 899px) {
  :root { --header-h: 60px; --dock-h: 64px; }
  .brand__name { font-size: 1.02rem; }
  .btn-support { padding: .55rem .8rem; }
  .header-tel { display: none; }
  .nav-ready .primary-nav {
    position: fixed; inset: var(--header-h) 0 auto; margin: 0;
    background: var(--panel-strong); border-bottom: 1px solid var(--line);
    padding: .5rem var(--margin) 1.2rem; transform: translateY(-8px); opacity: 0; visibility: hidden;
    transition: opacity .2s ease, transform .2s ease, visibility 0s .2s;
  }
  .nav-ready:not(.nav-used) .primary-nav { transition: none; }
  .nav-ready .primary-nav[data-open] { opacity: 1; transform: none; visibility: visible; transition: opacity .2s ease, transform .2s ease; }
  .nav-ready .primary-nav ul { flex-direction: column; align-items: stretch; gap: 0; }
  .nav-ready .primary-nav a { display: block; padding: .9rem 0; font-size: 1.05rem; border-bottom: 1px solid var(--line); }
  .primary-nav__motion { padding-top: .9rem; }
  /* Längeres Menü (Untermenüs, Querformat, kleine Geräte): scrollt in sich, die Seite dahinter bleibt stehen */
  .nav-ready .primary-nav { max-height: calc(100vh - var(--header-h)); max-height: calc(100dvh - var(--header-h)); overflow-y: auto; overscroll-behavior: contain; }
  /* Unten Platz für den Schnellzugriff (Anrufen/Support), damit die letzten Einträge nicht darunter liegen */
  .nav-ready .primary-nav[data-open] { padding-bottom: calc(1.2rem + var(--dock-h) + env(safe-area-inset-bottom)); }
  /* Untermenüs mobil: aufgeklappt, Einträge in zwei Spalten (schmal: eine), Touchflächen ≥ 44 px */
  .nav-ready .subnav__toggle { display: flex; width: 100%; justify-content: space-between; padding: .9rem 0; font-size: 1.05rem; border-bottom: 1px solid var(--line); }
  .nav-ready .subnav__toggle::after { display: none; }
  .nav-ready .primary-nav .subnav__list { grid-template-columns: repeat(auto-fill, minmax(min(100%, 9.5rem), 1fr)); column-gap: 1rem; padding: .3rem 0 .5rem; border-bottom: 1px solid var(--line); }
  .nav-ready .primary-nav .subnav__list a { display: flex; align-items: center; gap: .5rem; min-height: 44px; padding: .45rem 0; font-size: .97rem; color: var(--bone-dim); border-bottom: 0; }
  .nav-ready .primary-nav .subnav__list a[aria-current] { color: var(--bone); }
  .nav-ready .primary-nav .subnav__list--more { grid-template-columns: repeat(auto-fill, minmax(min(100%, 8.5rem), 1fr)); }
  html:not(.nav-ready) .primary-nav ul { gap: 14px; flex-wrap: wrap; }
  html:not(.nav-ready) .site-header { position: absolute; }
  /* Ohne JavaScript (kein Menüknopf): Navigation in eigener Zeile unter Marke und Support */
  html:not(.nav-ready) .site-header, html:not(.nav-ready) .site-header__inner { height: auto; }
  html:not(.nav-ready) .site-header__inner { flex-wrap: wrap; row-gap: 2px; padding-block: 10px 6px; }
  html:not(.nav-ready) .primary-nav { order: 3; width: 100%; margin: 0; }

  .dock {
    display: grid; grid-template-columns: 1fr 1fr; gap: 8px;
    position: fixed; left: 0; right: 0; bottom: 0; z-index: 60;
    padding: 8px var(--margin) calc(8px + env(safe-area-inset-bottom));
    background: rgba(7, 9, 19, .94); border-top: 1px solid var(--line);
    transition: transform .3s var(--ease);
  }
  .dock-hidden .dock { transform: translateY(110%); }
  .dock__btn { display: flex; align-items: center; justify-content: center; gap: .5rem; min-height: 46px; font-weight: 680; font-size: .95rem; border: 1px solid var(--line-strong); border-radius: var(--radius); }
  .dock__btn--call { background: var(--signal); color: var(--ink); border-color: var(--signal); }

  .contact__details { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  /* Schnellzugriff liegt fest am unteren Rand (Unterseiten: immer): Die letzte Zeile des Fußes endet darüber,
     auch bei Geräten mit Bedienleiste am unteren Rand (der Schnellzugriff wächst dort um denselben Abstand) */
  .site-footer { padding-bottom: calc(2rem + var(--dock-h) + env(safe-area-inset-bottom)); }
}
@media (max-width: 380px) {
  .brand__name { display: none; }
}