/* 2K Buchhaltung – Layout: ruhige Seiten im Logo-Navy mit grünem Haken als einzigem Akzent; Kontobuch-Zeile im Kopf. Keine externen Ressourcen. */
:root {
  --bg: #f6f7f5;
  --surface: #ffffff;
  --ink: #17304f;
  --text: #1d2a36;
  --muted: #56657a;
  --line: #dde3e6;
  --navy: #17304f;
  --on-navy: #ffffff;
  --green: #6dbb8c;
  --green-text: #2f6b49;
  --green-soft: #e6f3eb;
  --todo: #fff1b8;
  --danger: #a3302a;
  --font: "Manrope", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --radius: 8px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0d1724; --surface: #13223a; --ink: #e9eff6; --text: #d6dee8; --muted: #9aabbf;
    --line: #253752; --navy: #2a4a74; --on-navy: #ffffff; --green: #6dbb8c; --green-text: #8fd3a9;
    --green-soft: #173327; --todo: #5a4a12; --danger: #f08a83;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0d1724; --surface: #13223a; --ink: #e9eff6; --text: #d6dee8; --muted: #9aabbf;
  --line: #253752; --navy: #2a4a74; --on-navy: #ffffff; --green: #6dbb8c; --green-text: #8fd3a9;
  --green-soft: #173327; --todo: #5a4a12; --danger: #f08a83;
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body { margin: 0; background: var(--bg); color: var(--text); font-family: var(--font); font-size: 1.0625rem; line-height: 1.65; }
img, svg { max-width: 100%; }
a { color: var(--green-text); text-underline-offset: 3px; }
:focus-visible { outline: 2px solid var(--green); outline-offset: 3px; border-radius: 2px; }
h1, h2, h3 { color: var(--ink); font-weight: 800; line-height: 1.18; letter-spacing: -0.015em; text-wrap: balance; margin: 0; }
h1 { font-size: clamp(2.1rem, 5vw, 3.1rem); }
h2 { font-size: clamp(1.55rem, 3.2vw, 2.05rem); }
h3 { font-size: 1.2rem; letter-spacing: -0.005em; }
p { margin: 0; }
.todo { background: var(--todo); padding: 0 .2em; border-radius: 2px; }

.wrap { max-width: 1060px; margin: 0 auto; padding-left: max(20px, env(safe-area-inset-left, 0px)); padding-right: max(20px, env(safe-area-inset-right, 0px)); }
.prose { max-width: 66ch; }
.eyebrow { font-size: .78rem; text-transform: uppercase; letter-spacing: .14em; color: var(--green-text); font-weight: 700; }

/* Kopfzeile */
.site-header { border-bottom: 1px solid var(--line); background: var(--surface); }
.site-header .wrap { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px 28px; padding-block: 16px; }
.brand { display: flex; align-items: center; gap: 12px; color: var(--ink); text-decoration: none; }
.brand svg { width: 42px; height: 42px; flex: none; }
.brand-name { font-size: 1.2rem; line-height: 1; letter-spacing: -0.01em; }
.brand-name b { font-weight: 800; }
.brand-name span { font-weight: 600; }
.site-nav { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 22px; font-size: .95rem; font-weight: 600; }
.site-nav a { color: var(--muted); text-decoration: none; padding-block: 6px; border-bottom: 2px solid transparent; }
.site-nav a:hover { color: var(--ink); }
.site-nav a[aria-current="page"] { color: var(--ink); border-bottom-color: var(--green); }
.site-nav a.nav-cta { color: var(--on-navy); background: var(--navy); padding: 8px 16px; border-radius: var(--radius); border: 0; }
.site-nav a.nav-cta:hover { filter: brightness(1.15); }

/* Seitenkopf */
.hero .wrap { display: grid; grid-template-columns: 1.15fr .85fr; gap: 48px; align-items: center; padding-block: 72px 64px; }
.hero-text { display: grid; gap: 20px; min-width: 0; }
.lead { font-size: 1.2rem; color: var(--muted); max-width: 54ch; }
.page-head .wrap { padding-block: 64px 40px; display: grid; gap: 16px; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 8px; }
.btn { display: inline-block; padding: 12px 22px; border-radius: var(--radius); font-weight: 700; text-decoration: none; border: 1px solid var(--navy); font-family: inherit; font-size: 1rem; cursor: pointer; }
.btn-primary { background: var(--navy); color: var(--on-navy); }
.btn-primary:hover { filter: brightness(1.15); }
.btn-ghost { color: var(--ink); background: transparent; border-color: var(--line); }
.btn-ghost:hover { border-color: var(--ink); }

.ledger { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); font-family: var(--font-mono); font-size: .85rem; overflow: hidden; min-width: 0; }
.ledger-head { display: flex; justify-content: space-between; padding: 12px 16px; border-bottom: 1px solid var(--line); color: var(--muted); }
.ledger-scroll { overflow-x: auto; }
.ledger table { width: 100%; border-collapse: collapse; font-variant-numeric: tabular-nums; }
.ledger th, .ledger td { padding: 9px 16px; text-align: left; border-bottom: 1px solid var(--line); white-space: nowrap; }
.ledger th { font-weight: 500; color: var(--muted); font-size: .75rem; text-transform: uppercase; letter-spacing: .08em; }
.ledger td.num, .ledger th.num { text-align: right; }
.ledger tr:last-child td { border-bottom: 0; }
.ledger-foot { padding: 10px 16px; background: var(--green-soft); color: var(--green-text); display: flex; justify-content: space-between; font-weight: 600; }
.ledger-foot .sum { border-bottom: 3px double currentColor; padding-bottom: 1px; }

/* Abschnitte */
.section { padding-block: 72px; border-top: 1px solid var(--line); }
.section-head { display: grid; gap: 10px; margin-bottom: 36px; max-width: 66ch; }
.section-head p { color: var(--muted); }

.cards { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.card { background: var(--surface); padding: 28px; display: grid; gap: 10px; align-content: start; }
.card p { color: var(--muted); }
.card a { font-weight: 700; }
.more { margin-top: 24px; font-weight: 700; }
.note { margin-top: 20px; font-size: .9rem; color: var(--muted); max-width: 80ch; }

.benefits { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 32px 40px; list-style: none; margin: 0; padding: 0; }
.benefits li { display: grid; gap: 6px; padding-top: 16px; border-top: 2px solid var(--green); }
.benefits strong { color: var(--ink); font-size: 1.1rem; font-weight: 800; }
.benefits span { color: var(--muted); }

.steps { list-style: none; margin: 0; padding: 0; display: grid; counter-reset: step; max-width: 760px; }
.steps li { counter-increment: step; display: grid; grid-template-columns: 56px 1fr; gap: 16px; padding-block: 18px; border-bottom: 1px solid var(--line); }
.steps li::before { content: counter(step, decimal-leading-zero); font-family: var(--font-mono); color: var(--green-text); font-size: .95rem; padding-top: 3px; }
.steps strong { display: block; color: var(--ink); font-size: 1.05rem; }
.steps span { color: var(--muted); }

.cta-band { background: var(--navy); color: var(--on-navy); }
.cta-band .wrap { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 20px 40px; padding-block: 48px; }
.cta-band h2 { color: var(--on-navy); }
.cta-band p { opacity: .85; margin-top: 6px; }
.cta-band .btn { background: var(--green); border-color: var(--green); color: #10251a; }

/* Leistungsseite */
.service-detail { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: 40px; padding-block: 48px; border-top: 1px solid var(--line); }
.service-detail:first-child { border-top: 0; padding-top: 8px; }
.service-detail .intro { display: grid; gap: 12px; align-content: start; }
.service-detail .intro p { color: var(--muted); }
.checklist { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.checklist li { position: relative; padding-left: 30px; }
.checklist li::before { content: ""; position: absolute; left: 4px; top: .45em; width: 12px; height: 7px; border-left: 3px solid var(--green); border-bottom: 3px solid var(--green); transform: rotate(-45deg); }
.tags { display: flex; flex-wrap: wrap; gap: 8px; list-style: none; margin: 0; padding: 0; }
.tags li { border: 1px solid var(--line); background: var(--surface); border-radius: 999px; padding: 4px 14px; font-size: .92rem; }

/* Über uns */
.about { display: grid; grid-template-columns: 1.2fr .8fr; gap: 48px; align-items: start; }
.about .prose { display: grid; gap: 16px; min-width: 0; }
.facts { margin: 0; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
.facts div { display: grid; grid-template-columns: 110px 1fr; gap: 12px; padding: 12px 16px; border-bottom: 1px solid var(--line); }
.facts div:last-child { border-bottom: 0; }
.facts dt { color: var(--muted); font-size: .9rem; }
.facts dd { margin: 0; }
.timeline { list-style: none; margin: 0; padding: 0; display: grid; max-width: 760px; }
.timeline li { display: grid; grid-template-columns: 130px 1fr; gap: 16px; padding-block: 14px; border-bottom: 1px solid var(--line); }
.timeline time { font-family: var(--font-mono); font-size: .9rem; color: var(--green-text); padding-top: 2px; }

/* Kontakt */
.contact { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: 48px; align-items: start; }
.contact-list { margin: 0; display: grid; gap: 16px; }
.contact-list div { display: grid; gap: 2px; }
.contact-list dt { font-size: .78rem; text-transform: uppercase; letter-spacing: .12em; color: var(--muted); font-weight: 700; }
.contact-list dd { margin: 0; font-size: 1.08rem; }
.form { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; display: grid; gap: 18px; }
.field { display: grid; gap: 6px; }
.field label { font-weight: 700; font-size: .95rem; color: var(--ink); }
.field .hint { font-weight: 400; color: var(--muted); }
.field input, .field textarea { font: inherit; color: var(--text); background: var(--bg); border: 1px solid var(--line); border-radius: 6px; padding: 11px 12px; width: 100%; }
.field input:focus, .field textarea:focus { outline: 2px solid var(--green); outline-offset: 0; border-color: var(--green); }
.field textarea { min-height: 160px; resize: vertical; }
.field-row { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.check { display: grid; grid-template-columns: 22px 1fr; gap: 10px; align-items: start; font-size: .95rem; }
.check input { width: 18px; height: 18px; margin-top: 3px; accent-color: var(--navy); }
.hp { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.form-error { color: var(--danger); font-size: .9rem; font-weight: 600; }
.alert { border-radius: var(--radius); padding: 16px 18px; font-weight: 600; }
.alert-ok { background: var(--green-soft); color: var(--green-text); }
.alert-err { background: var(--surface); border: 1px solid var(--danger); color: var(--danger); }

/* Rechtstexte */
.legal { padding-block: 56px 72px; }
.legal .prose { display: grid; gap: 14px; }
.legal h1 { margin-bottom: 12px; }
.legal h2 { font-size: 1.3rem; margin-top: 22px; }
.legal h3 { font-size: 1.02rem; margin-top: 8px; }
.legal ul { margin: 0; padding-left: 1.2em; display: grid; gap: 6px; }

.feature-list { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px 40px; }
.feature-list li { display: grid; gap: 4px; }
.feature-list strong { color: var(--ink); font-size: 1.08rem; font-weight: 800; }
.feature-list span { color: var(--muted); }
.panel { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px 28px; display: grid; gap: 10px; }

/* Fußzeile */
.site-footer { border-top: 1px solid var(--line); font-size: .9rem; color: var(--muted); background: var(--surface); }
.site-footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 12px 24px; padding-block: 28px; }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 6px 20px; }
.site-footer a { color: var(--muted); }

@media (max-width: 860px) {
  .hero .wrap, .about, .contact, .service-detail { grid-template-columns: 1fr; }
  .benefits { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .hero .wrap { padding-block: 48px; gap: 36px; }
  .service-detail { gap: 20px; }
}
@media (max-width: 560px) {
  .cards, .benefits, .feature-list, .field-row { grid-template-columns: 1fr; }
  .section { padding-block: 56px; }
  .facts div, .timeline li { grid-template-columns: 1fr; gap: 2px; }
  .form { padding: 20px; }
}
.section.flush { border-top: 0; padding-top: 0; }

/* Grafiken: Kontenblatt, Symbole, Datenfluss (Farben aus den Tokens, damit Hell und Dunkel stimmen) */
.hero-art { margin: 0; min-width: 0; }
.hero-art svg { display: block; width: 100%; height: auto; max-width: 460px; margin-inline: auto; }
.a-sheet { fill: var(--surface); stroke: var(--line); stroke-width: 1.5; }
.a-back { fill: var(--bg); }
.a-ink { fill: none; stroke: var(--ink); stroke-width: 2.5; }
.a-rule { fill: none; stroke: var(--muted); stroke-width: 1.5; }
.a-double { fill: none; stroke: var(--green); stroke-width: 2.5; }
.a-check { fill: none; stroke: var(--green); stroke-width: 13; stroke-linecap: butt; stroke-linejoin: miter; stroke-miterlimit: 1.5; }
.hero-art text { font-family: var(--font-mono); font-size: 15px; fill: var(--text); }
.hero-art .a-label { font-family: var(--font); font-size: 13px; font-weight: 700; letter-spacing: .06em; fill: var(--muted); text-transform: uppercase; }
.hero-art .a-sum text { font-weight: 700; fill: var(--ink); }
@media (prefers-reduced-motion: no-preference) {
  .a-check { stroke-dasharray: 160; stroke-dashoffset: 0; animation: draw-check .9s .3s ease-out both; }
  @keyframes draw-check { from { stroke-dashoffset: 160; } to { stroke-dashoffset: 0; } }
}

.icon { width: 48px; height: 48px; display: block; }
.icon .i-ink { fill: none; stroke: var(--ink); stroke-width: 2.5; stroke-linecap: round; stroke-linejoin: round; }
.icon .i-green { fill: none; stroke: var(--green); stroke-width: 3; stroke-linecap: butt; }
.icon .i-box { fill: none; stroke: var(--ink); stroke-width: 2; }
.icon .i-done { fill: var(--green); stroke: var(--green); }
.service-detail .intro .icon { margin-bottom: 4px; }

.flow-scroll { overflow-x: auto; margin-bottom: 40px; }
.flow { display: block; width: 100%; min-width: 620px; height: auto; }
.f-src rect { fill: var(--surface); stroke: var(--line); stroke-width: 1.5; }
.f-src text { fill: var(--ink); font-family: var(--font); font-size: 16px; font-weight: 700; }
.f-line { fill: none; stroke: var(--muted); stroke-width: 2; }
.f-arrowhead { fill: var(--muted); }
.f-core { fill: var(--navy); }
.f-core-t { fill: var(--on-navy); font-family: var(--font); font-size: 17px; font-weight: 800; }
.f-out { fill: var(--surface); stroke: var(--ink); stroke-width: 2; }
.f-out-t { fill: var(--ink); font-family: var(--font); font-size: 16px; font-weight: 700; }
.f-check { fill: none; stroke: var(--green); stroke-width: 7; stroke-linejoin: miter; stroke-miterlimit: 1.5; }
.f-double { fill: none; stroke: var(--green); stroke-width: 2.5; }
.f-cap { fill: var(--muted); font-family: var(--font); font-size: 13px; }

/* Summenstrich unter Abschnittsüberschriften */
.section-head h2::after { content: ""; display: block; width: 56px; height: 8px; margin-top: 14px; border-top: 2.5px solid var(--green); border-bottom: 2.5px solid var(--green); }

/* Fläche "Lernen wir uns kennen": großer, blasser Haken aus dem Logo */
.cta-band { position: relative; overflow: hidden; }
.cta-band::after { content: ""; position: absolute; right: -30px; top: 50%; width: 260px; height: 260px; transform: translateY(-50%); pointer-events: none;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 100'%3E%3Cpath d='M30 20 V70 L90 2' fill='none' stroke='%236DBB8C' stroke-width='14' stroke-linejoin='miter' stroke-miterlimit='1.5'/%3E%3C/svg%3E") no-repeat center / contain; opacity: .18; }
.cta-band .wrap { position: relative; z-index: 1; }

/* Nach oben */
.to-top { position: fixed; z-index: 20; right: calc(18px + env(safe-area-inset-right, 0px)); bottom: calc(18px + env(safe-area-inset-bottom, 0px));
  width: 46px; height: 46px; border-radius: 50%; display: grid; place-items: center;
  background: var(--navy); color: var(--on-navy); box-shadow: 0 4px 14px rgb(0 0 0 / .18); }
.to-top svg { width: 22px; height: 22px; fill: none; stroke: currentColor; stroke-width: 2.5; stroke-linecap: round; stroke-linejoin: round; }
.to-top:hover { filter: brightness(1.2); }
@supports (animation-timeline: scroll()) {
  .to-top { animation: show-top linear both; animation-timeline: scroll(root); animation-range: 0 320px; }
  @keyframes show-top { from { opacity: 0; visibility: hidden; transform: translateY(12px); } to { opacity: 1; visibility: visible; transform: none; } }
}
.card-wide { grid-column: 1 / -1; grid-template-columns: 48px minmax(0, 1fr); column-gap: 20px; background: var(--green-soft); }
.card-wide .card-body { display: grid; gap: 10px; max-width: 72ch; }
.card-wide .card-body p { color: var(--text); }
.icon .i-check { fill: none; stroke: var(--green); stroke-width: 4; stroke-linecap: butt; }
@media (max-width: 560px) { .card-wide { grid-template-columns: 1fr; } }

/* Sprachwahl DE | TR */
.lang-switch { display: inline-flex; border: 1px solid var(--line); border-radius: 999px; overflow: hidden; font-size: .82rem; font-weight: 700; letter-spacing: .04em; }
.site-nav .lang-switch a { padding: 5px 10px; border: 0; color: var(--muted); text-decoration: none; }
.site-nav .lang-switch a:hover { color: var(--ink); }
.site-nav .lang-switch a[aria-current="true"] { background: var(--navy); color: var(--on-navy); }