:root {
  --bg: #ffffff;
  --bg-soft: #f4f5f7;
  --ink: #0b0d12;
  --ink-soft: #4a505c;
  --line: #e1e3e8;
  --brand: #02050a;
  --brand-2: #171a22;
  --accent: #e3201b;
  --accent-ink: #ffffff;
  --accent-bright: #ff4a40;
  --accent-text: #c8140f;
  --warn: #ff7a45;
  --radius: 14px;
  --shadow: 0 8px 30px rgba(2, 5, 10, .12);
  --max: 1160px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img, svg { max-width: 100%; display: block; }
a { color: inherit; }
h1, h2, h3 { line-height: 1.2; margin: 0 0 .5em; letter-spacing: -.01em; }
h1 { font-size: clamp(2.1rem, 5vw, 3.4rem); }
h2 { font-size: clamp(1.6rem, 3.2vw, 2.3rem); }
h3 { font-size: 1.15rem; }
p { margin: 0 0 1em; }

.wrap { width: min(1200px, 100% - 48px); margin-inline: auto; } /* wie syncfuse.de */
.section { padding: 72px 0; }
.section.soft { background: var(--bg-soft); }
.section.dark { background: var(--brand); color: #fff; }
.section-head { max-width: 680px; margin-bottom: 40px; }
.section-head.center { margin-inline: auto; text-align: center; }
.eyebrow { color: var(--accent-text); font-weight: 700; font-size: .85rem; letter-spacing: .08em; text-transform: uppercase; margin-bottom: .6em; }
.lead { font-size: 1.15rem; color: var(--ink-soft); }
.dark .lead { color: #c2c5cc; }
.dark .eyebrow, .hero .eyebrow, .page-head .eyebrow { color: var(--accent-bright); }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: .5em; justify-content: center;
  padding: .8em 1.4em; border-radius: 999px; border: 2px solid transparent;
  font: inherit; font-weight: 650; text-decoration: none; cursor: pointer;
  transition: transform .15s, box-shadow .15s, background .15s;
}
.btn:hover { transform: translateY(-1px); }
.btn:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible, summary:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }
.btn-primary { background: var(--accent); color: var(--accent-ink); }
.btn-primary:hover { box-shadow: 0 6px 18px rgba(227, 32, 27, .4); }
.btn-ghost { border-color: currentColor; background: transparent; }
.btn-dark { background: var(--brand); color: #fff; }
.btn-block { width: 100%; }
.btn-sm { padding: .5em 1em; font-size: .92rem; }

/* Header */
.topbar { background: var(--brand); color: #cdd0d6; font-size: .85rem; }
.topbar .wrap { display: flex; gap: 24px; justify-content: center; padding-block: 8px; flex-wrap: wrap; }
.topbar span::before { content: "✓ "; color: var(--accent); font-weight: 700; }
.header { position: sticky; top: 0; z-index: 50; background: rgba(255, 255, 255, .94); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.header .wrap { display: flex; align-items: center; justify-content: space-between; height: 76px; gap: 16px; }
.logo img { height: 46px; width: auto; }
@media (max-width: 560px) { .logo img { height: 34px; } }
.logo { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.35rem; text-decoration: none; letter-spacing: -.02em; }
.logo b { color: var(--accent); }
.nav { display: flex; align-items: center; gap: 6px; }
.nav a { text-decoration: none; padding: .5em .8em; border-radius: 8px; font-weight: 550; }
.nav a:hover, .nav a[aria-current="page"] { background: var(--bg-soft); }
.nav .btn { padding: .5em 1.1em; }
.nav a.btn-dark, .nav a.btn-dark:hover { color: #fff; }
.nav a.btn-dark { background: var(--brand); }
.nav a.btn-dark:hover, .nav a.btn-dark:focus-visible { background: var(--accent); }
.cart-link { position: relative; }
.cart-count { background: var(--accent); color: var(--accent-ink); border-radius: 999px; font-size: .75rem; font-weight: 800; padding: 1px 7px; margin-left: 4px; }
.cart-count[data-n="0"] { display: none; }
.burger { display: none; background: none; border: 0; padding: 8px; cursor: pointer; }
.burger span { display: block; width: 24px; height: 2px; background: var(--ink); margin: 5px 0; }

@media (max-width: 880px) {
  .burger { display: block; }
  .nav { display: none; position: absolute; top: 76px; left: 0; right: 0; background: #fff; flex-direction: column; align-items: stretch; padding: 12px 20px 20px; border-bottom: 1px solid var(--line); box-shadow: var(--shadow); }
  .nav.open { display: flex; }
  .nav a { padding: .8em; }
}

/* Hero */
.hero { background: radial-gradient(1200px 500px at 85% -10%, #3b1012 0%, transparent 60%), var(--brand); color: #fff; padding: 80px 0 90px; overflow: hidden; }
.hero .wrap { display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: center; }
.hero h1 em { font-style: normal; color: var(--accent-bright); }
.hero .lead { color: #cdd0d6; max-width: 540px; }
.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 28px; }
.hero-points { display: flex; gap: 22px; flex-wrap: wrap; margin-top: 30px; padding: 0; list-style: none; color: #cdd0d6; font-size: .95rem; }
.hero-points li::before { content: "✓ "; color: var(--accent); font-weight: 800; }
.map-card { background: #fff; color: var(--ink); border-radius: 20px; box-shadow: 0 30px 60px rgba(0, 0, 0, .35); overflow: hidden; }
.map-card .bar { display: flex; justify-content: space-between; align-items: center; padding: 12px 16px; font-size: .85rem; border-bottom: 1px solid var(--line); }
.live { color: var(--accent-text); font-weight: 700; }
.live::before { content: ""; display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: var(--accent); margin-right: 6px; animation: pulse 1.6s infinite; }
@keyframes pulse { 0% { box-shadow: 0 0 0 0 rgba(227, 32, 27, .6); } 100% { box-shadow: 0 0 0 10px rgba(227, 32, 27, 0); } }
.route { stroke-dasharray: 700; stroke-dashoffset: 700; animation: draw 3.5s ease-out .3s forwards; }
@keyframes draw { to { stroke-dashoffset: 0; } }
.map-stats { display: grid; grid-template-columns: repeat(3, 1fr); text-align: center; padding: 14px; gap: 8px; border-top: 1px solid var(--line); }
.map-stats b { display: block; font-size: 1.15rem; }
.map-stats span { font-size: .78rem; color: var(--ink-soft); }
@media (max-width: 880px) { .hero .wrap { grid-template-columns: 1fr; } .hero { padding: 56px 0 64px; } }
@media (prefers-reduced-motion: reduce) { .route { animation: none; stroke-dashoffset: 0; } .live::before { animation: none; } html { scroll-behavior: auto; } }

/* Grids & cards */
.grid { display: grid; gap: 22px; }
.g2 { grid-template-columns: repeat(2, 1fr); }
.g3 { grid-template-columns: repeat(3, 1fr); }
.g4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 980px) { .g4 { grid-template-columns: repeat(2, 1fr); } .g3 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .g2, .g3, .g4 { grid-template-columns: 1fr; } .section { padding: 52px 0; } }

.card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }
.soft .card { border-color: transparent; }
.feature .ico { width: 46px; height: 46px; border-radius: 12px; background: #fdeceb; color: var(--accent-text); display: grid; place-items: center; margin-bottom: 14px; }
.feature p { color: var(--ink-soft); margin: 0; }

.steps { counter-reset: s; }
.step { position: relative; padding-top: 8px; }
.step::before { counter-increment: s; content: counter(s); display: grid; place-items: center; width: 40px; height: 40px; border-radius: 50%; background: var(--accent); color: var(--accent-ink); font-weight: 800; margin-bottom: 14px; }
.step p { color: #c2c5cc; }

/* Product */
.product { display: flex; flex-direction: column; padding: 0; overflow: hidden; }
.product .pic { background: linear-gradient(160deg, #f1f2f5, #e6e8ec); padding: 22px; display: grid; place-items: center; height: 170px; }
.product .pic svg { height: 100%; width: auto; }
.product .body { padding: 20px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.product .tag { font-size: .8rem; color: var(--accent-text); font-weight: 700; text-transform: uppercase; letter-spacing: .05em; }
.product p { color: var(--ink-soft); margin: 0; font-size: .95rem; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chip { font-size: .75rem; background: var(--bg-soft); border-radius: 999px; padding: 3px 10px; color: var(--ink-soft); }
.ticks { list-style: none; padding: 0; margin: 0; font-size: .92rem; }
.ticks li { padding-left: 1.5em; position: relative; margin: .35em 0; }
.ticks li::before { content: "✓"; position: absolute; left: 0; color: var(--accent-bright); font-weight: 800; }
.price { font-size: 1.6rem; font-weight: 800; }
.price small { font-size: .8rem; font-weight: 500; color: var(--ink-soft); }
.product .buy { margin-top: auto; display: grid; gap: 10px; }

/* Plans */
.plan { display: flex; flex-direction: column; gap: 14px; position: relative; }
.plan.featured { border: 2px solid var(--accent); box-shadow: var(--shadow); }
.plan .badge { position: absolute; top: -13px; left: 24px; background: var(--accent); color: var(--accent-ink); font-size: .75rem; font-weight: 800; padding: 3px 12px; border-radius: 999px; }
.plan .pitch { color: var(--ink-soft); margin: 0; }
.plan .price span { font-size: .9rem; font-weight: 500; color: var(--ink-soft); }

.toggle { display: inline-flex; background: #fff; border: 1px solid var(--line); border-radius: 999px; padding: 3px; }
.toggle button { border: 0; background: none; padding: .45em 1.1em; border-radius: 999px; font: inherit; font-weight: 600; cursor: pointer; color: var(--ink-soft); }
.toggle button[aria-pressed="true"] { background: var(--brand); color: #fff; }

table.pt { width: 100%; border-collapse: collapse; background: #fff; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); }
.pt th, .pt td { padding: 14px 16px; text-align: left; border-bottom: 1px solid var(--line); vertical-align: top; }
.pt thead th { background: var(--brand); color: #fff; font-weight: 650; }
.pt tbody tr:last-child td { border-bottom: 0; }
.pt td.n, .pt th.n { text-align: right; white-space: nowrap; }
.pt .yes { color: var(--accent-text); font-weight: 800; }
.pt .no { color: #a3b0be; }
.table-scroll { overflow-x: auto; }

/* Misc */
.usecase { padding: 22px; border-radius: var(--radius); background: #fff; border: 1px solid var(--line); }
.usecase h3 { display: flex; align-items: center; gap: 10px; }
.usecase p { color: var(--ink-soft); margin: 0; }
.cta-band { background: linear-gradient(120deg, var(--brand-2), var(--brand)); color: #fff; border-radius: 22px; padding: 44px; display: flex; justify-content: space-between; align-items: center; gap: 24px; flex-wrap: wrap; }
.cta-band h2 { margin: 0 0 .3em; }
.cta-band p { margin: 0; color: #c2c5cc; }
details { border-bottom: 1px solid var(--line); padding: 16px 0; }
summary { cursor: pointer; font-weight: 650; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
summary::after { content: "+"; font-size: 1.4rem; line-height: 1; color: var(--accent-text); }
details[open] summary::after { content: "–"; }
details p { color: var(--ink-soft); margin: .8em 0 0; }
.note { font-size: .88rem; color: var(--ink-soft); }
.page-head { background: var(--brand); color: #fff; padding: 56px 0; }
.page-head p { color: #c2c5cc; max-width: 640px; margin: 0; font-size: 1.1rem; }
.page-head h1 { font-size: clamp(1.9rem, 4vw, 2.7rem); }

/* Add-to-cart row */
.picker { display: grid; grid-template-columns: 1fr 76px; gap: 8px; }
select, input[type=text], input[type=email], input[type=tel], input[type=number] {
  width: 100%; padding: .7em .8em; border: 1px solid #c4cfdb; border-radius: 10px; font: inherit; background: #fff; color: var(--ink);
}

/* Cart / checkout */
.checkout { display: grid; grid-template-columns: 1.3fr 1fr; gap: 32px; align-items: start; }
@media (max-width: 880px) { .checkout { grid-template-columns: 1fr; } }
.line { display: grid; grid-template-columns: 1fr auto; gap: 8px 16px; padding: 16px 0; border-bottom: 1px solid var(--line); }
.line .meta { color: var(--ink-soft); font-size: .9rem; }
.line .qty { display: flex; gap: 8px; align-items: center; }
.line .qty button { width: 30px; height: 30px; border-radius: 50%; border: 1px solid var(--line); background: #fff; cursor: pointer; font-size: 1rem; }
.link-btn { background: none; border: 0; color: var(--ink-soft); text-decoration: underline; cursor: pointer; font: inherit; font-size: .88rem; }
.sum-row { display: flex; justify-content: space-between; padding: 6px 0; }
.sum-row.total { font-weight: 800; font-size: 1.2rem; border-top: 2px solid var(--ink); margin-top: 8px; padding-top: 12px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form-grid .full { grid-column: 1 / -1; }
label { display: block; font-weight: 600; font-size: .9rem; margin-bottom: 4px; }
.check { display: flex; gap: 10px; align-items: flex-start; font-weight: 400; }
.check input { margin-top: .35em; }
.empty { text-align: center; padding: 48px 20px; }
.alert { background: #fdeceb; border: 1px solid #f5b5b2; padding: 16px; border-radius: 12px; }

/* Footer */
.footer { background: var(--brand); color: #c2c5cc; padding: 56px 0 28px; font-size: .95rem; }
.footer .cols { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 32px; }
@media (max-width: 760px) { .footer .cols { grid-template-columns: 1fr 1fr; } }
.footer h4 { color: #fff; margin: 0 0 12px; }
.footer a { text-decoration: none; display: block; padding: 3px 0; }
.footer a:hover { color: #fff; }
.footer .logo { color: #fff; }
.footer .legal { border-top: 1px solid #2a2d36; margin-top: 36px; padding-top: 20px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; font-size: .85rem; }
.prose { max-width: 760px; }
.prose h2 { font-size: 1.4rem; margin-top: 1.6em; }
.todo { background: #fff4e5; border: 1px solid #ffd59e; padding: 14px 16px; border-radius: 10px; font-size: .92rem; }

.plans-grid { grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); }
.plans-grid .price { font-size: 1.5rem; }
.fact { display: flex; gap: 14px; align-items: flex-start; }
.fact b { font-size: 1.6rem; color: var(--accent-text); line-height: 1.1; }

.grid.single { grid-template-columns: minmax(0, 880px); }
.single .product { flex-direction: row; }
.single .product .pic { height: auto; width: 320px; flex-shrink: 0; }
.single .product .body { padding: 28px; }
@media (max-width: 760px) { .single .product { flex-direction: column; } .single .product .pic { width: auto; height: 170px; } }

.pp { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: start; }
.pp-gallery .pic { height: 360px; background: linear-gradient(160deg, #f1f2f5, #e6e8ec); border-radius: 10px; display: grid; place-items: center; padding: 30px; }
.pp-gallery .pic svg { height: 100%; width: auto; }
.pp-info > * + * { margin-top: 14px; }
.buybox { display: grid; gap: 12px; background: var(--bg-soft); border-color: transparent; }
.tablist { display: flex; gap: 4px; border-bottom: 2px solid var(--line); }
.tablist button { background: none; border: 0; padding: .8em 1.2em; font: inherit; font-weight: 650; cursor: pointer; color: var(--ink-soft); border-bottom: 3px solid transparent; margin-bottom: -2px; }
.tablist button[aria-selected="true"] { color: var(--ink); border-bottom-color: var(--accent); }
.tabpanel { padding: 28px 0; max-width: 820px; }
.tabpanel h3 { margin-top: 1.4em; }
.tabpanel h3:first-child { margin-top: 0; }
.tabpanel ol { padding-left: 1.3em; }
@media (max-width: 880px) { .pp { grid-template-columns: 1fr; } .pp-gallery .pic { height: 240px; } }