/* =========================================================
   Digital Data Systems GmbH — Corporate Website
   Design im Stil der ATRON Group (Muttergesellschaft)
   ========================================================= */

/* ---------- Tokens ---------- */
:root {
  --blue:        #0B57A4;
  --blue-dark:   #06376B;
  --blue-hover:  #0A4A8D;
  --navy:        #062440;
  --cyan:        #12A5DC;

  --ink:         #10202E;
  --ink-2:       #4A5C6D;
  --ink-3:       #7A8A99;

  --tint:        #EFF5FA;
  --tint-2:      #E2EDF6;
  --line:        #D8E3EC;
  --white:       #FFFFFF;

  --hex: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);

  --wrap: 1200px;
  --gut: 24px;

  --f-head: "Barlow Semi Condensed", "Barlow", "Segoe UI", Roboto, sans-serif;
  --f-body: "Barlow", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  --shadow-sm: 0 2px 10px rgba(6, 36, 64, .07);
  --shadow-md: 0 12px 34px rgba(6, 36, 64, .12);

  --header-h: 84px;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 120px; }
body {
  margin: 0;
  font-family: var(--f-body);
  font-size: 17px;
  line-height: 1.65;
  color: var(--ink);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}
img, svg { max-width: 100%; display: block; }
a { color: var(--blue); text-decoration: none; }
a:hover { color: var(--blue-hover); text-decoration: underline; }
button { font: inherit; }
ul { margin: 0; padding: 0; }

:focus-visible {
  outline: 3px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 2px;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; transition-duration: .001ms !important; }
}

/* ---------- Typografie ---------- */
h1, h2, h3, h4 {
  font-family: var(--f-head);
  font-weight: 600;
  line-height: 1.12;
  letter-spacing: -.005em;
  color: var(--navy);
  margin: 0 0 .5em;
}
h1 { font-size: clamp(2.3rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.8rem, 3.4vw, 2.6rem); }
h3 { font-size: clamp(1.25rem, 2vw, 1.5rem); }
h4 { font-size: 1.12rem; }
p  { margin: 0 0 1.1em; max-width: 72ch; }
.lead { font-size: 1.18rem; color: var(--ink-2); max-width: 68ch; }
strong { font-weight: 600; }

.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 999;
  background: var(--navy); color: #fff; padding: 12px 20px;
}
.skip-link:focus { left: 0; }

/* ---------- Layout ---------- */
.wrap { width: 100%; max-width: var(--wrap); margin-inline: auto; padding-inline: var(--gut); }
.section { padding: 88px 0; }
.section--tight { padding: 60px 0; }
.section--tint { background: var(--tint); }
.section--navy { background: var(--navy); color: #C9DAE8; }
.section--navy h2, .section--navy h3 { color: #fff; }

.grid { display: grid; gap: 28px; }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); }

.section-head { max-width: 760px; margin-bottom: 46px; }
.section-head .lead { margin-bottom: 0; }

/* Kleine Rautenmarke über Überschriften (statt Versalien-Label) */
.mark {
  width: 26px; height: 30px; margin-bottom: 18px;
  background: linear-gradient(150deg, var(--cyan), var(--blue));
  clip-path: var(--hex);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 28px;
  font-family: var(--f-head);
  font-size: 1.02rem; font-weight: 600; letter-spacing: .01em;
  border: 2px solid var(--blue);
  background: var(--blue); color: #fff;
  cursor: pointer;
  transition: background .18s ease, border-color .18s ease, color .18s ease;
}
.btn:hover { background: var(--blue-hover); border-color: var(--blue-hover); color: #fff; text-decoration: none; }
.btn--ghost { background: transparent; color: var(--blue); }
.btn--ghost:hover { background: var(--blue); color: #fff; }
.btn--light { background: transparent; border-color: rgba(255,255,255,.7); color: #fff; }
.btn--light:hover { background: #fff; border-color: #fff; color: var(--navy); }
.btn-row { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 30px; }

/* ---------- Kopfbereich ---------- */
.topbar {
  background: var(--navy); color: #A9C2D6;
  font-size: .87rem;
}
.topbar .wrap { display: flex; align-items: center; justify-content: flex-end; gap: 26px; min-height: 40px; flex-wrap: wrap; }
.topbar a { color: #DCE9F3; }
.topbar a:hover { color: #fff; }
.topbar .parent { margin-right: auto; color: #8EAAC2; }

.site-header {
  position: sticky; top: 0; z-index: 60;
  background: rgba(255,255,255,.96);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.site-header .wrap {
  display: flex; align-items: center; gap: 30px;
  min-height: var(--header-h);
}
.brand { display: flex; align-items: center; gap: 14px; text-decoration: none; }
.brand:hover { text-decoration: none; }
.brand-mark { width: 46px; height: auto; flex: none; }
.brand-text { display: flex; flex-direction: column; line-height: 1.05; }
.brand-name {
  font-family: var(--f-head); font-weight: 700; font-size: 1.55rem;
  color: var(--navy); letter-spacing: .02em;
}
.brand-sub { font-size: .74rem; color: var(--ink-3); letter-spacing: .06em; }

.nav { margin-left: auto; }
.nav ul { display: flex; gap: 4px; list-style: none; }
.nav a {
  display: block; padding: 10px 14px;
  font-family: var(--f-head); font-size: 1.05rem; font-weight: 500;
  color: var(--ink); border-bottom: 3px solid transparent;
}
.nav a:hover { color: var(--blue); text-decoration: none; border-bottom-color: var(--tint-2); }
.nav a[aria-current="page"] { color: var(--blue); border-bottom-color: var(--blue); }
.nav .nav-cta { margin-left: 12px; }
.nav .nav-cta a {
  background: var(--blue); color: #fff; padding: 11px 22px; border-bottom: none;
}
.nav .nav-cta a:hover { background: var(--blue-hover); border-bottom: none; }

.nav-toggle {
  display: none; margin-left: auto;
  width: 46px; height: 46px; padding: 0;
  background: var(--blue); border: none; color: #fff; cursor: pointer;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
  display: block; width: 20px; height: 2px; background: #fff; margin-inline: auto; position: relative;
}
.nav-toggle span::before { content: ""; position: absolute; top: -6px; }
.nav-toggle span::after  { content: ""; position: absolute; top: 6px; }
.nav-toggle[aria-expanded="true"] span { background: transparent; }
.nav-toggle[aria-expanded="true"] span::before { top: 0; transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] span::after  { top: 0; transform: rotate(-45deg); }

@media (max-width: 980px) {
  .nav-toggle { display: block; }
  .nav {
    position: absolute; top: 100%; left: 0; right: 0;
    background: #fff; border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow-md);
    display: none;
  }
  .nav.open { display: block; }
  .nav ul { flex-direction: column; padding: 10px var(--gut) 22px; }
  .nav a { padding: 13px 0; border-bottom: 1px solid var(--line); font-size: 1.15rem; }
  .nav a[aria-current="page"] { border-bottom-color: var(--blue); }
  .nav .nav-cta { margin: 14px 0 0; }
  .nav .nav-cta a { text-align: center; }
}

/* ---------- Hero ---------- */
.hero {
  position: relative; overflow: hidden;
  background:
    radial-gradient(900px 520px at 82% 8%, rgba(18,165,220,.30), transparent 62%),
    linear-gradient(120deg, #04203A 0%, #0A4682 58%, #0B57A4 100%);
  color: #E6F0F8;
}
.hero::after {
  content: ""; position: absolute; inset: 0; opacity: .16; pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='56' height='97' viewBox='0 0 56 97'%3E%3Cpath d='M28 0 56 16v32L28 64 0 48V16z' fill='none' stroke='%23ffffff' stroke-width='1'/%3E%3Cpath d='M28 64 56 80v32L28 128 0 112V80z' fill='none' stroke='%23ffffff' stroke-width='1'/%3E%3C/svg%3E");
}
.hero .wrap { position: relative; z-index: 1; }
.hero-inner {
  display: grid; grid-template-columns: 1.15fr .85fr; gap: 60px; align-items: center;
  padding: 96px 0 100px;
}
.hero h1 { color: #fff; max-width: 15ch; }
.hero p { color: #C6DCEE; font-size: 1.2rem; max-width: 54ch; }
.hero-kicker {
  display: inline-flex; align-items: center; gap: 12px;
  margin-bottom: 26px; color: #9FC6E4; font-size: .95rem;
}
.hero-kicker::before {
  content: ""; width: 16px; height: 18px; background: var(--cyan); clip-path: var(--hex); flex: none;
}

/* Hexagon-Cluster als Hero-Grafik */
.hexfield { display: grid; grid-template-columns: repeat(2, 150px); gap: 14px 18px; justify-content: end; }
.hexfield .hx:nth-child(even) { transform: translateY(46px); }
.hx {
  width: 150px; height: 172px;
  clip-path: var(--hex);
  background: rgba(255,255,255,.10);
  border: 0;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center; padding: 18px 14px; gap: 4px;
  color: #fff;
}
.hx--solid { background: linear-gradient(160deg, var(--cyan), var(--blue)); }
.hx strong { font-family: var(--f-head); font-size: 1.18rem; font-weight: 600; letter-spacing: .01em; }
.hx small { font-size: .78rem; color: #CBE3F3; line-height: 1.3; }

@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; gap: 48px; padding: 66px 0 76px; }
  .hexfield { justify-content: start; grid-template-columns: repeat(2, 128px); }
  .hx { width: 128px; height: 148px; }
  .hexfield .hx:nth-child(even) { transform: translateY(38px); }
}
@media (max-width: 420px) {
  .hexfield { grid-template-columns: repeat(2, 112px); }
  .hx { width: 112px; height: 130px; padding: 10px; }
  .hx strong { font-size: 1rem; }
}

/* ---------- Seitenkopf (Unterseiten) ---------- */
.pagehead {
  background: linear-gradient(115deg, #06376B 0%, #0B57A4 100%);
  color: #DCEAF6; padding: 62px 0 58px;
  position: relative; overflow: hidden;
}
.pagehead::after {
  content: ""; position: absolute; right: -60px; top: -40px;
  width: 320px; height: 368px; clip-path: var(--hex);
  background: rgba(255,255,255,.07);
}
.pagehead h1 { color: #fff; margin-bottom: .25em; }
.pagehead p { color: #BDD6EA; max-width: 62ch; margin: 0; }
.breadcrumb { font-size: .88rem; color: #9FC0DA; margin-bottom: 18px; position: relative; z-index: 1; }
.breadcrumb a { color: #CFE3F2; }
.breadcrumb span { padding: 0 8px; opacity: .6; }

/* ---------- Karten ---------- */
.card {
  background: #fff; border: 1px solid var(--line);
  padding: 34px 30px 32px;
  display: flex; flex-direction: column;
  transition: border-color .18s ease, box-shadow .18s ease;
}
.card:hover { border-color: #B7CFE2; box-shadow: var(--shadow-md); }
.card h3 { margin-bottom: .35em; }
.card p { color: var(--ink-2); font-size: .98rem; }
.card .card-link { margin-top: auto; padding-top: 14px; font-family: var(--f-head); font-weight: 600; }
.card-hex {
  width: 52px; height: 60px; margin-bottom: 20px; flex: none;
  background: linear-gradient(155deg, var(--cyan), var(--blue));
  clip-path: var(--hex);
  display: flex; align-items: center; justify-content: center;
}
.card-hex svg { width: 24px; height: 24px; stroke: #fff; fill: none; stroke-width: 1.7; }
.card--flat { border: none; background: var(--tint); }
.card--flat:hover { box-shadow: none; }

/* ---------- Modul-Blöcke (Vertriebssystem) ---------- */
.module { border-top: 3px solid var(--blue); padding-top: 30px; scroll-margin-top: 140px; }
.module + .module { margin-top: 66px; }
.module-grid { display: grid; grid-template-columns: 300px 1fr; gap: 48px; align-items: start; }
.module-grid h2 { margin-top: -6px; }
.module-note { font-size: .95rem; color: var(--ink-2); }
@media (max-width: 860px) { .module-grid { grid-template-columns: 1fr; gap: 20px; } }

/* ---------- Listen ---------- */
.ticklist { list-style: none; display: grid; gap: 11px; }
.ticklist li { position: relative; padding-left: 30px; color: var(--ink-2); }
.ticklist li::before {
  content: ""; position: absolute; left: 0; top: .52em;
  width: 11px; height: 13px; background: var(--blue); clip-path: var(--hex);
}
.section--navy .ticklist li { color: #C9DAE8; }
.section--navy .ticklist li::before { background: var(--cyan); }

/* ---------- Kennzahlen ---------- */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 20px; }
.stat { text-align: center; padding: 8px 6px; }
.stat b {
  display: block; font-family: var(--f-head); font-size: 2.7rem; font-weight: 600;
  color: var(--cyan); line-height: 1;
}
.stat span { display: block; margin-top: 8px; font-size: .95rem; color: #A9C6DD; }

/* ---------- Referenzen ---------- */
.refs { display: flex; flex-wrap: wrap; gap: 12px; }
.ref {
  padding: 12px 20px; background: #fff; border: 1px solid var(--line);
  font-family: var(--f-head); font-weight: 500; color: var(--navy); font-size: 1.02rem;
}

/* ---------- Akkordeon ---------- */
.accordion { border-top: 1px solid var(--line); max-width: 900px; }
.acc-item { border-bottom: 1px solid var(--line); }
.acc-btn {
  width: 100%; text-align: left; background: none; border: 0; cursor: pointer;
  padding: 22px 46px 22px 0; position: relative;
  font-family: var(--f-head); font-size: 1.2rem; font-weight: 600; color: var(--navy);
}
.acc-btn:hover { color: var(--blue); }
.acc-btn::after {
  content: ""; position: absolute; right: 6px; top: 50%;
  width: 12px; height: 12px; margin-top: -8px;
  border-right: 2px solid var(--blue); border-bottom: 2px solid var(--blue);
  transform: rotate(45deg); transition: transform .2s ease;
}
.acc-btn[aria-expanded="true"]::after { transform: rotate(-135deg); margin-top: -2px; }
.acc-panel { display: none; padding: 0 0 24px; }
.acc-panel.open { display: block; }
.acc-panel p:last-child, .acc-panel ul:last-child { margin-bottom: 0; }
.acc-panel .ticklist { margin-top: 4px; }

/* ---------- Kontakt / Formular ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: start; }
@media (max-width: 900px) { .contact-grid { grid-template-columns: 1fr; gap: 40px; } }

.form-field { margin-bottom: 20px; }
.form-field label { display: block; font-size: .92rem; font-weight: 600; color: var(--navy); margin-bottom: 7px; }
.form-field input, .form-field textarea, .form-field select {
  width: 100%; padding: 13px 15px;
  font: inherit; font-size: 1rem; color: var(--ink);
  background: #fff; border: 1px solid var(--line);
}
.form-field input:focus, .form-field textarea:focus, .form-field select:focus { border-color: var(--blue); }
.form-field textarea { min-height: 150px; resize: vertical; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
@media (max-width: 560px) { .form-row { grid-template-columns: 1fr; gap: 0; } }
.form-check { display: flex; gap: 12px; align-items: flex-start; margin-bottom: 24px; font-size: .93rem; color: var(--ink-2); }
.form-check input { margin-top: 4px; width: 18px; height: 18px; flex: none; }
.form-hint { font-size: .86rem; color: var(--ink-3); margin-top: 16px; }
.form-status { margin-top: 18px; padding: 14px 18px; background: var(--tint); border-left: 3px solid var(--blue); font-size: .95rem; display: none; }
.form-status.show { display: block; }

.infobox { background: var(--tint); padding: 34px 32px; }
.infobox + .infobox { margin-top: 22px; }
.infobox h3 { margin-bottom: .5em; }
.infobox address { font-style: normal; color: var(--ink-2); }
.dl { display: grid; grid-template-columns: 120px 1fr; gap: 8px 16px; font-size: .98rem; }
.dl dt { color: var(--ink-3); }
.dl dd { margin: 0; color: var(--ink); }
@media (max-width: 480px) { .dl { grid-template-columns: 1fr; gap: 2px 0; } .dl dd { margin-bottom: 10px; } }

/* ---------- CTA-Band ---------- */
.cta-band {
  background: linear-gradient(115deg, #06376B 0%, #0B57A4 100%);
  color: #D7E7F4; padding: 66px 0;
}
.cta-band .wrap { display: flex; align-items: center; justify-content: space-between; gap: 34px; flex-wrap: wrap; }
.cta-band h2 { color: #fff; margin-bottom: .25em; }
.cta-band p { margin: 0; color: #BFD8EC; }

/* ---------- Fließtextseiten (Impressum/Datenschutz) ---------- */
.prose { max-width: 760px; }
.prose h2 { margin-top: 2em; font-size: 1.6rem; }
.prose h3 { margin-top: 1.6em; font-size: 1.2rem; }
.prose ol, .prose ul { margin: 0 0 1.2em; padding-left: 22px; color: var(--ink-2); }
.prose li { margin-bottom: 8px; }

/* ---------- Footer ---------- */
.site-footer { background: var(--navy); color: #A9C2D6; padding-top: 66px; font-size: .96rem; }
.site-footer h4 { color: #fff; font-size: 1.05rem; margin-bottom: 18px; }
.site-footer a { color: #C9DDEC; }
.site-footer a:hover { color: #fff; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 40px; padding-bottom: 52px; }
@media (max-width: 900px) { .footer-grid { grid-template-columns: 1fr 1fr; gap: 34px; } }
@media (max-width: 560px) { .footer-grid { grid-template-columns: 1fr; } }
.site-footer ul { list-style: none; display: grid; gap: 10px; }
.site-footer address { font-style: normal; line-height: 1.8; }
.footer-brand { display: flex; align-items: center; gap: 12px; margin-bottom: 20px; }
.footer-brand .brand-name { color: #fff; }
.footer-brand .brand-sub { color: #7FA0BC; }
.footer-parent {
  margin-top: 22px; padding: 16px 18px;
  border: 1px solid rgba(255,255,255,.16); font-size: .9rem; color: #B7CFE2;
}
.footer-bar {
  border-top: 1px solid rgba(255,255,255,.13); padding: 20px 0 26px;
  display: flex; flex-wrap: wrap; gap: 8px 26px; align-items: center;
  font-size: .88rem; color: #7FA0BC;
}
.footer-bar ul { display: flex; flex-wrap: wrap; gap: 22px; margin-left: auto; }

/* ---------- Cookie-Hinweis ---------- */
.cookiebar {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 90;
  background: #fff; border-top: 3px solid var(--blue); box-shadow: 0 -8px 30px rgba(6,36,64,.14);
  padding: 20px 0;
}
.cookiebar[hidden] { display: none; }
.cookiebar .wrap { display: flex; gap: 24px; align-items: center; flex-wrap: wrap; }
.cookiebar p { margin: 0; font-size: .94rem; color: var(--ink-2); flex: 1 1 420px; }