/* Signage Hub – Website (Marketing + Doku) */
:root {
  --navy: #0f172a;
  --navy-2: #1e293b;
  --teal: #0d9488;
  --teal-light: #5eead4;
  --teal-dark: #0f766e;
  --text: #1e293b;
  --muted: #64748b;
  --bg: #ffffff;
  --bg-soft: #f1f5f9;
  --border: #e2e8f0;
  --warn-bg: #fef3c7;
  --warn: #b45309;
  --radius: 14px;
  --maxw: 1080px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.65;
  font-size: 16.5px;
}
a { color: var(--teal-dark); }
img { max-width: 100%; height: auto; }

/* ---------- Topbar ---------- */
.topbar {
  position: sticky; top: 0; z-index: 50;
  background: rgba(15, 23, 42, 0.92);
  backdrop-filter: blur(8px);
  color: #fff;
}
.topbar-inner {
  max-width: var(--maxw); margin: 0 auto; padding: 0 20px;
  height: 60px; display: flex; align-items: center; gap: 10px;
}
.brand { display: flex; align-items: center; gap: 9px; font-weight: 800; font-size: 19px; color: #fff; text-decoration: none; letter-spacing: .01em; }
.brand .dot { width: 11px; height: 11px; border-radius: 50%; background: var(--teal); box-shadow: 0 0 10px var(--teal); }
.topbar nav { margin-left: auto; display: flex; gap: 4px; }
.topbar nav a {
  color: #cbd5e1; text-decoration: none; font-size: 15px; font-weight: 600;
  padding: 8px 14px; border-radius: 9px; transition: background .15s, color .15s;
}
.topbar nav a:hover { background: rgba(255,255,255,.09); color: #fff; }
.topbar nav a.active { background: var(--teal); color: #fff; }

/* ---------- Hero (Marketing) ---------- */
.hero {
  background:
    radial-gradient(ellipse 90% 70% at 70% -10%, rgba(13,148,136,.35), transparent 60%),
    radial-gradient(ellipse 60% 50% at 10% 110%, rgba(13,148,136,.18), transparent 60%),
    var(--navy);
  color: #fff;
  padding: 92px 20px 84px;
  text-align: center;
}
.hero .eyebrow {
  display: inline-block; font-size: 13.5px; font-weight: 700; letter-spacing: .14em;
  text-transform: uppercase; color: var(--teal-light);
  border: 1px solid rgba(94,234,212,.4); border-radius: 999px; padding: 6px 16px; margin-bottom: 26px;
}
.hero h1 { font-size: clamp(34px, 5.4vw, 58px); line-height: 1.12; margin: 0 auto 20px; max-width: 850px; font-weight: 800; letter-spacing: -0.015em; }
.hero h1 em { font-style: normal; color: var(--teal-light); }
.hero p.sub { font-size: clamp(17px, 2vw, 21px); color: #cbd5e1; max-width: 680px; margin: 0 auto 38px; }
.cta-row { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.btn {
  display: inline-block; padding: 14px 28px; border-radius: 12px; font-weight: 700; font-size: 16.5px;
  text-decoration: none; transition: transform .15s, box-shadow .15s, background .15s;
}
.btn-primary { background: var(--teal); color: #fff; box-shadow: 0 8px 24px rgba(13,148,136,.35); }
.btn-primary:hover { background: #0ca496; transform: translateY(-2px); }
.btn-ghost { color: #e2e8f0; border: 1.5px solid rgba(226,232,240,.35); }
.btn-ghost:hover { border-color: #e2e8f0; transform: translateY(-2px); }
.hero .note { margin-top: 26px; font-size: 14px; color: #94a3b8; }

/* ---------- Sections ---------- */
.section { padding: 76px 20px; }
.section.soft { background: var(--bg-soft); }
.section.dark { background: var(--navy); color: #fff; }
.section-inner { max-width: var(--maxw); margin: 0 auto; }
.section h2 { font-size: clamp(26px, 3.4vw, 36px); margin: 0 0 10px; letter-spacing: -0.01em; text-align: center; }
.section .lead { text-align: center; color: var(--muted); max-width: 640px; margin: 0 auto 48px; font-size: 18px; }
.section.dark .lead { color: #94a3b8; }

/* Nutzen-Grid */
.grid { display: grid; gap: 20px; }
.grid.g3 { grid-template-columns: repeat(3, 1fr); }
.grid.g4 { grid-template-columns: repeat(4, 1fr); }
.card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 26px 24px; box-shadow: 0 1px 3px rgba(15,23,42,.05);
}
.card .icon { font-size: 30px; margin-bottom: 12px; }
.card h3 { margin: 0 0 8px; font-size: 18.5px; }
.card p { margin: 0; color: var(--muted); font-size: 15.5px; }

/* Einsatzorte */
.place { text-align: center; padding: 28px 18px; }
.place .icon { font-size: 40px; }
.place h3 { margin: 12px 0 6px; font-size: 17.5px; }
.place p { font-size: 14.5px; }

/* Schritte */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; counter-reset: step; }
.step { position: relative; background: #fff; border-radius: var(--radius); padding: 34px 26px 26px; border: 1px solid var(--border); }
.step .num {
  position: absolute; top: -22px; left: 24px; width: 44px; height: 44px; border-radius: 50%;
  background: var(--teal); color: #fff; font-weight: 800; font-size: 20px;
  display: flex; align-items: center; justify-content: center; box-shadow: 0 6px 16px rgba(13,148,136,.4);
}
.step h3 { margin: 6px 0 8px; font-size: 18px; }
.step p { margin: 0; color: var(--muted); font-size: 15.5px; }

/* Screenshots */
.shot { border-radius: 14px; box-shadow: 0 20px 50px rgba(15,23,42,.25); border: 1px solid rgba(255,255,255,.12); }
.shots { display: grid; grid-template-columns: 1.4fr 1fr; gap: 26px; align-items: start; }
.shot-caption { text-align: center; font-size: 14px; color: #94a3b8; margin-top: 12px; }

/* Vertrauen */
.trust { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.trust .card { background: var(--navy-2); border-color: rgba(148,163,184,.2); color: #e2e8f0; }
.trust .card h3 { color: var(--teal-light); }
.trust .card p { color: #94a3b8; }

/* FAQ (Landing) */
details.faq {
  background: #fff; border: 1px solid var(--border); border-radius: 12px;
  padding: 4px 22px; margin-bottom: 12px;
}
details.faq summary { cursor: pointer; font-weight: 700; padding: 14px 0; font-size: 16.5px; list-style: none; position: relative; padding-right: 30px; }
details.faq summary::-webkit-details-marker { display: none; }
details.faq summary::after { content: '+'; position: absolute; right: 2px; top: 50%; transform: translateY(-50%); font-size: 22px; color: var(--teal); font-weight: 400; }
details.faq[open] summary::after { content: '–'; }
details.faq p { margin: 0 0 16px; color: var(--muted); }

/* Footer */
.footer { background: var(--navy); color: #94a3b8; padding: 34px 20px; font-size: 14px; }
.footer-inner { max-width: var(--maxw); margin: 0 auto; display: flex; gap: 16px; flex-wrap: wrap; align-items: center; }
.footer a { color: #cbd5e1; }
.footer .spacer { flex: 1; }

/* Reveal-Animation */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; }
.reveal.visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; transition: none; } }

/* ---------- Doku-Bereich ---------- */
.doc-wrap { max-width: var(--maxw); margin: 0 auto; padding: 40px 20px 90px; display: grid; grid-template-columns: 230px 1fr; gap: 44px; }
.doc-nav { position: sticky; top: 84px; align-self: start; }
.doc-nav .group { font-size: 12.5px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); margin: 0 0 8px; }
.doc-nav a { display: block; padding: 7px 12px; border-radius: 8px; color: var(--text); text-decoration: none; font-size: 15px; margin-bottom: 2px; }
.doc-nav a:hover { background: var(--bg-soft); }
.doc-nav a.active { background: #e0f2f1; color: var(--teal-dark); font-weight: 700; }
.doc-content { min-width: 0; }
.doc-content h1 { font-size: 32px; margin: 6px 0 6px; letter-spacing: -0.01em; }
.doc-content .doc-sub { color: var(--muted); margin: 0 0 34px; font-size: 17px; }
.doc-content h2 { font-size: 22px; margin: 42px 0 12px; padding-bottom: 8px; border-bottom: 2px solid var(--teal); }
.doc-content h3 { font-size: 17.5px; margin: 28px 0 8px; color: var(--teal-dark); }
.doc-content ul { padding-left: 22px; }
.doc-content li { margin-bottom: 6px; }

/* Tabellen */
.tbl-scroll { overflow-x: auto; margin: 18px 0; }
table.doc { border-collapse: collapse; width: 100%; font-size: 15px; }
table.doc th {
  background: var(--teal); color: #fff; text-align: left; font-weight: 700;
  padding: 10px 14px; border: 1px solid var(--teal-dark);
}
table.doc td { padding: 10px 14px; border: 1px solid var(--border); vertical-align: top; }
table.doc tr:nth-child(even) td { background: #f8fafc; }
table.doc code { white-space: nowrap; }

/* Code */
pre.code {
  background: var(--navy); color: #e2e8f0; border-radius: 10px; padding: 16px 18px;
  overflow-x: auto; font-size: 14px; line-height: 1.55; position: relative; margin: 14px 0 22px;
}
pre.code code { font-family: "SF Mono", Consolas, Menlo, monospace; }
code { font-family: "SF Mono", Consolas, Menlo, monospace; font-size: .92em; background: var(--bg-soft); padding: 2px 6px; border-radius: 5px; }
pre.code .copy {
  position: absolute; top: 8px; right: 8px; background: rgba(255,255,255,.1); color: #cbd5e1;
  border: 1px solid rgba(255,255,255,.2); border-radius: 7px; font-size: 12.5px; padding: 4px 10px; cursor: pointer;
}
pre.code .copy:hover { background: rgba(255,255,255,.2); color: #fff; }

/* Boxen */
.box { border-radius: 12px; padding: 16px 20px; margin: 20px 0; border-left: 5px solid var(--teal-dark); background: #e0f2f1; }
.box.warn { border-left-color: var(--warn); background: var(--warn-bg); }
.box h4 { margin: 0 0 6px; font-size: 16px; }
.box p { margin: 0; font-size: 15px; }
.box.warn h4 { color: var(--warn); }
.box h4 { color: var(--teal-dark); }

/* Doku-Karten (Übersicht) */
.doc-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 26px; }
.doc-card { display: block; text-decoration: none; color: var(--text); background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 22px; transition: transform .15s, box-shadow .15s, border-color .15s; }
.doc-card:hover { transform: translateY(-3px); box-shadow: 0 10px 26px rgba(15,23,42,.09); border-color: var(--teal); }
.doc-card .icon { font-size: 26px; }
.doc-card h3 { margin: 10px 0 6px; font-size: 17px; }
.doc-card p { margin: 0; color: var(--muted); font-size: 14.5px; }

/* Download-Kachel */
.download-tile {
  display: flex; gap: 18px; align-items: center; background: var(--navy); color: #fff;
  border-radius: var(--radius); padding: 22px 26px; margin: 26px 0; text-decoration: none;
  transition: transform .15s;
}
.download-tile:hover { transform: translateY(-2px); }
.download-tile .icon { font-size: 36px; }
.download-tile h3 { margin: 0 0 4px; font-size: 17px; color: #fff; }
.download-tile p { margin: 0; color: #94a3b8; font-size: 14px; }

/* Kontaktformular */
.contact-form { margin: 22px 0 8px; }
.contact-form .row { display: flex; gap: 16px; }
.contact-form .field { display: block; flex: 1; margin-bottom: 16px; }
.contact-form .field > span { display: block; font-size: 14px; font-weight: 600; color: #334155; margin-bottom: 6px; }
.contact-form input[type=text],
.contact-form input[type=email],
.contact-form textarea {
  width: 100%; padding: 11px 13px; font: inherit; font-size: 15px; color: var(--text);
  background: #fff; border: 1px solid var(--border); border-radius: 10px; box-sizing: border-box;
}
.contact-form textarea { resize: vertical; min-height: 120px; }
.contact-form input:focus, .contact-form textarea:focus {
  outline: 2px solid rgba(13,148,136,.35); border-color: var(--teal);
}
.contact-form .hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form-foot { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; margin-top: 4px; }
.btn-submit {
  background: var(--teal); color: #fff; border: 0; border-radius: 10px; padding: 12px 26px;
  font-size: 15.5px; font-weight: 700; cursor: pointer; transition: background .15s, transform .15s;
}
.btn-submit:hover:not(:disabled) { background: #0ca496; transform: translateY(-1px); }
.btn-submit:disabled { opacity: .6; cursor: not-allowed; }
.form-status { font-size: 14.5px; font-weight: 600; }
.form-status.ok { color: var(--teal-dark); }
.form-status.err { color: #dc2626; }
.form-hint { font-size: 13px; color: var(--muted); margin: 14px 0 0; }
@media (max-width: 600px) { .contact-form .row { flex-direction: column; gap: 0; } }

/* Checkliste */
ul.checklist { list-style: none; padding: 0; }
ul.checklist li { padding: 10px 14px 10px 40px; border: 1px solid var(--border); border-radius: 9px; margin-bottom: 8px; position: relative; background: #fff; }
ul.checklist li::before { content: '☐'; position: absolute; left: 14px; font-size: 18px; color: var(--teal-dark); }

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .grid.g3, .grid.g4, .steps, .trust, .doc-cards { grid-template-columns: repeat(2, 1fr); }
  .shots { grid-template-columns: 1fr; }
  .doc-wrap { grid-template-columns: 1fr; }
  .doc-nav { position: static; display: flex; flex-wrap: wrap; gap: 6px; border-bottom: 1px solid var(--border); padding-bottom: 14px; }
  .doc-nav .group { display: none; }
}
@media (max-width: 600px) {
  .grid.g3, .grid.g4, .steps, .trust, .doc-cards { grid-template-columns: 1fr; }
  .hero { padding: 64px 18px 58px; }
  .topbar nav a { padding: 8px 9px; font-size: 14px; }
}

/* Druck (Checkliste) */
@media print {
  .topbar, .doc-nav, .footer, pre.code .copy { display: none !important; }
  .doc-wrap { display: block; padding: 0; }
  body { font-size: 12pt; }
}