:root {
    --ink: #1f302f;
    --ink-soft: #4f5e5b;
    --petrol-900: #123f3c;
    --petrol-800: #19524e;
    --petrol-700: #236762;
    --petrol-100: #dce9e6;
    --petrol-50: #edf4f2;
    --cream: #f7f3eb;
    --cream-deep: #eee6d8;
    --paper: #fffdf9;
    --terracotta: #a95c45;
    --terracotta-dark: #884632;
    --terracotta-soft: #f2ded6;
    --gold: #d5b878;
    --line: #d8ded9;
    --white: #ffffff;
    --success: #266b49;
    --error: #9c2f2f;
    --shadow-sm: 0 8px 24px rgba(20, 56, 52, .08);
    --shadow-lg: 0 24px 70px rgba(20, 56, 52, .15);
    --radius-sm: .65rem;
    --radius: 1.2rem;
    --radius-lg: 2rem;
    --container: 74rem;
    --reading: 48rem;
    --header-height: 5.25rem;
    --font-sans: "Aptos", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --font-serif: Georgia, "Times New Roman", serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    color: var(--ink);
    background: var(--paper);
    font-family: var(--font-sans);
    font-size: 1.05rem;
    line-height: 1.72;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
}
img, picture, video { display: block; max-width: 100%; }
img { height: auto; }
a { color: var(--petrol-700); text-decoration-thickness: .08em; text-underline-offset: .18em; }
a:hover { color: var(--terracotta-dark); }
button, input, textarea, select { font: inherit; }
button { cursor: pointer; }
address { font-style: normal; }

h1, h2, h3, h4 {
    margin: 0 0 .7em;
    color: var(--ink);
    font-family: var(--font-serif);
    font-weight: 700;
    line-height: 1.14;
    text-wrap: balance;
}
h1 { font-size: clamp(2.55rem, 7vw, 5.2rem); letter-spacing: -.045em; }
h2 { font-size: clamp(2rem, 4.5vw, 3.35rem); letter-spacing: -.03em; }
h3 { font-size: clamp(1.35rem, 2.4vw, 1.75rem); letter-spacing: -.015em; }
p { margin: 0 0 1.2rem; }
ul, ol { margin: 0 0 1.3rem; padding-left: 1.25rem; }
li + li { margin-top: .35rem; }
strong { color: var(--ink); }
hr { border: 0; border-top: 1px solid var(--line); margin: 2.5rem 0; }

.container { width: min(calc(100% - 2rem), var(--container)); margin-inline: auto; }
.reading-width { max-width: var(--reading); }
.section { padding: clamp(4.5rem, 9vw, 8rem) 0; }
.section--compact { padding: clamp(3rem, 6vw, 5.5rem) 0; }
.section--cream { background: var(--cream); }
.section--petrol { background: var(--petrol-900); color: rgba(255,255,255,.88); }
.section--petrol h2, .section--petrol h3, .section--petrol strong { color: var(--white); }
.section--pattern {
    background-color: var(--cream);
    background-image: radial-gradient(circle at 1px 1px, rgba(31, 82, 78, .11) 1px, transparent 0);
    background-size: 24px 24px;
}
.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: .7rem;
    margin-bottom: 1rem;
    color: var(--terracotta-dark);
    font-size: .78rem;
    font-weight: 800;
    letter-spacing: .13em;
    text-transform: uppercase;
}
.eyebrow::before { content: ""; width: 2.2rem; height: 2px; background: currentColor; }
.section--petrol .eyebrow { color: #f1c9bb; }
.lead { font-size: clamp(1.2rem, 2.2vw, 1.48rem); line-height: 1.6; color: var(--ink-soft); }
.section--petrol .lead { color: rgba(255,255,255,.78); }
.section-heading { max-width: 52rem; margin-bottom: 3rem; }
.section-heading p { max-width: 45rem; color: var(--ink-soft); }
.section--petrol .section-heading p { color: rgba(255,255,255,.78); }
.kicker { color: var(--terracotta-dark); font-weight: 750; }

.skip-link {
    position: fixed;
    z-index: 9999;
    top: .75rem;
    left: .75rem;
    transform: translateY(-180%);
    padding: .8rem 1rem;
    border-radius: .5rem;
    color: var(--white);
    background: var(--petrol-900);
}
.skip-link:focus { transform: translateY(0); }

.site-header {
    position: sticky;
    z-index: 1000;
    top: 0;
    min-height: var(--header-height);
    border-bottom: 1px solid rgba(18,63,60,.09);
    background: rgba(255,253,249,.93);
    backdrop-filter: blur(16px);
    transition: box-shadow .2s ease;
}
.site-header.is-scrolled { box-shadow: var(--shadow-sm); }
.header-inner { min-height: var(--header-height); display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; }
.brand { display: inline-flex; align-items: center; gap: .8rem; color: var(--ink); text-decoration: none; }
.brand:hover { color: var(--ink); }
.brand-mark {
    display: grid;
    width: 3rem;
    aspect-ratio: 1;
    place-items: center;
    border-radius: 50% 50% 50% 14%;
    color: var(--white);
    background: var(--petrol-800);
    font-family: var(--font-serif);
    font-size: 1.05rem;
    font-weight: 700;
    box-shadow: inset 0 0 0 1px rgba(255,255,255,.25);
}
.brand-mark span { color: var(--gold); }
.brand-copy { display: grid; line-height: 1.1; }
.brand-copy strong { font-family: var(--font-serif); font-size: 1.18rem; letter-spacing: -.02em; }
.brand-copy small { margin-top: .25rem; color: var(--ink-soft); font-size: .72rem; letter-spacing: .09em; text-transform: uppercase; }
.site-nav ul { display: flex; align-items: center; gap: .35rem; margin: 0; padding: 0; list-style: none; }
.site-nav li { margin: 0; }
.site-nav a { display: inline-flex; align-items: center; min-height: 2.7rem; padding: .6rem .72rem; border-radius: .7rem; color: var(--ink); font-size: .92rem; font-weight: 650; text-decoration: none; }
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--petrol-800); background: var(--petrol-50); }
.site-nav .button { color: var(--white); }
.site-nav .button:hover, .site-nav .button[aria-current="page"] { color: var(--white); background: var(--terracotta-dark); }
.nav-contact { margin-left: .35rem !important; }
.nav-toggle { display: none; border: 0; color: var(--ink); background: transparent; }
.nav-toggle-label { font-size: .9rem; font-weight: 700; }
.nav-toggle-icon { display: grid; gap: 4px; width: 1.35rem; }
.nav-toggle-icon i { display: block; height: 2px; border-radius: 2px; background: currentColor; transition: transform .2s, opacity .2s; }

.button-row { display: flex; flex-wrap: wrap; gap: .8rem; margin-top: 1.8rem; }
.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .55rem;
    min-height: 3.2rem;
    padding: .85rem 1.25rem;
    border: 2px solid transparent;
    border-radius: .8rem;
    color: var(--white);
    background: var(--terracotta);
    font-weight: 750;
    line-height: 1.2;
    text-decoration: none;
    box-shadow: 0 8px 18px rgba(137,70,50,.16);
    transition: transform .18s ease, box-shadow .18s ease, background .18s ease;
}
.button:hover { transform: translateY(-2px); color: var(--white); background: var(--terracotta-dark); box-shadow: 0 12px 25px rgba(137,70,50,.22); }
.button--secondary { color: var(--petrol-800); border-color: var(--petrol-800); background: transparent; box-shadow: none; }
.button--secondary:hover { color: var(--white); background: var(--petrol-800); box-shadow: none; }
.section--petrol .button--secondary { color: var(--white); border-color: rgba(255,255,255,.72); }
.section--petrol .button--secondary:hover { color: var(--petrol-900); border-color: var(--white); background: var(--white); }
.button--light { color: var(--petrol-900); background: var(--white); box-shadow: none; }
.button--light:hover { color: var(--petrol-900); background: var(--cream); }
.button--ghost-light { color: var(--white); border-color: rgba(255,255,255,.55); background: transparent; box-shadow: none; }
.button--ghost-light:hover { color: var(--petrol-900); background: var(--white); }
.button--small { min-height: 2.65rem; padding: .65rem .95rem; font-size: .9rem; }
.text-link { display: inline-flex; align-items: center; gap: .45rem; font-weight: 750; }
.text-link::after { content: "→"; transition: transform .2s; }
.text-link:hover::after { transform: translateX(.25rem); }

.hero { position: relative; overflow: hidden; background: var(--cream); }
.hero::before {
    content: "";
    position: absolute;
    width: 34rem;
    height: 34rem;
    top: -15rem;
    left: -12rem;
    border-radius: 50%;
    background: rgba(35,103,98,.08);
}
.hero-grid { min-height: min(49rem, calc(100vh - var(--header-height))); display: grid; grid-template-columns: 1.05fr .95fr; align-items: center; gap: clamp(2rem, 5vw, 5rem); padding-block: clamp(4rem, 8vw, 7rem); }
.hero-copy { position: relative; z-index: 2; max-width: 45rem; }
.hero-copy h1 span { color: var(--petrol-700); }
.hero-copy .lead { max-width: 41rem; }
.hero-credentials { margin: 1.7rem 0 0; color: var(--ink-soft); font-size: .95rem; font-weight: 650; }
.hero-visual { position: relative; align-self: end; }
.hero-portrait-wrap { position: relative; max-width: 36rem; margin-left: auto; }
.hero-portrait-wrap::before {
    content: "";
    position: absolute;
    inset: 5% -7% -4% 9%;
    border-radius: 48% 48% 12% 48%;
    background: var(--petrol-100);
    transform: rotate(3deg);
}
.hero-portrait { position: relative; width: 100%; border-radius: 48% 48% 12% 48%; filter: contrast(1.02); }
.hero-note {
    position: absolute;
    right: -1rem;
    bottom: 2rem;
    max-width: 15rem;
    padding: 1.1rem 1.25rem;
    border-radius: var(--radius);
    color: var(--white);
    background: var(--petrol-800);
    box-shadow: var(--shadow-lg);
    font-size: .9rem;
    line-height: 1.45;
}
.hero-note strong { display: block; margin-bottom: .25rem; color: var(--white); font-family: var(--font-serif); font-size: 1.15rem; }

.page-hero { position: relative; overflow: hidden; padding: clamp(4.2rem, 9vw, 8rem) 0 clamp(3.6rem, 7vw, 6.5rem); background: var(--cream); }
.page-hero::after { content: ""; position: absolute; right: -10rem; bottom: -18rem; width: 35rem; aspect-ratio: 1; border: 4rem solid rgba(35,103,98,.07); border-radius: 50%; }
.page-hero .container { position: relative; z-index: 1; }
.page-hero h1 { max-width: 58rem; font-size: clamp(2.8rem, 6vw, 4.8rem); }
.page-hero .lead { max-width: 52rem; }
.breadcrumb { display: flex; flex-wrap: wrap; gap: .5rem; margin-bottom: 1.4rem; color: var(--ink-soft); font-size: .86rem; }
.breadcrumb a { color: inherit; }

.grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: clamp(2rem, 5vw, 5rem); align-items: center; }
.grid-3 { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 1.25rem; }
.grid-4 { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 1.1rem; }
.cards { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 1.25rem; }
.card {
    position: relative;
    padding: clamp(1.45rem, 3vw, 2.1rem);
    border: 1px solid rgba(18,63,60,.12);
    border-radius: var(--radius);
    background: var(--white);
    box-shadow: var(--shadow-sm);
}
.card h3 { margin-bottom: .65rem; }
.card p:last-child { margin-bottom: 0; }

/* Helle Karten innerhalb dunkler Abschnitte */
.section--petrol .card {
    color: var(--ink);
}
.section--petrol .card h2,
.section--petrol .card h3,
.section--petrol .card h4,
.section--petrol .card strong {
    color: var(--ink);
}
.section--petrol .card p {
    color: var(--ink-soft);
}
.section--petrol .card .eyebrow {
    color: var(--terracotta-dark);
}
.card--accent { border-top: 4px solid var(--terracotta); }
.card--quiet { box-shadow: none; background: rgba(255,255,255,.65); }
.card-number { display: inline-grid; width: 2.5rem; aspect-ratio: 1; place-items: center; margin-bottom: 1.1rem; border-radius: 50%; color: var(--white); background: var(--petrol-700); font-family: var(--font-serif); font-weight: 700; }
.icon-badge { display: inline-grid; width: 3.2rem; aspect-ratio: 1; place-items: center; margin-bottom: 1.1rem; border-radius: 50% 50% 50% 16%; color: var(--petrol-800); background: var(--petrol-100); font-size: 1.35rem; }
.offer-grid { display: grid; grid-template-columns: repeat(6,minmax(0,1fr)); gap: 1.25rem; }
.offer-card { grid-column: span 2; display: flex; flex-direction: column; min-height: 100%; }
.offer-card:nth-child(4), .offer-card:nth-child(5) { grid-column: span 3; }
.offer-card .text-link { margin-top: auto; padding-top: 1rem; }

.split-image { position: relative; }
.split-image img { width: 100%; border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); }
.split-image::after { content: ""; position: absolute; right: -1rem; bottom: -1rem; z-index: -1; width: 45%; height: 45%; border-radius: var(--radius); background: var(--terracotta-soft); }
.quote {
    margin: 2rem 0;
    padding: 1.6rem 0 1.6rem 1.5rem;
    border-left: 4px solid var(--terracotta);
    color: var(--petrol-900);
    font-family: var(--font-serif);
    font-size: clamp(1.35rem, 2.8vw, 2rem);
    line-height: 1.4;
}
.quote cite { display: block; margin-top: .8rem; color: var(--ink-soft); font-family: var(--font-sans); font-size: .82rem; font-style: normal; }

.tag-list { display: flex; flex-wrap: wrap; gap: .55rem; margin: 1.4rem 0; padding: 0; list-style: none; }
.tag-list li { margin: 0; padding: .52rem .78rem; border: 1px solid rgba(35,103,98,.18); border-radius: 999px; color: var(--petrol-800); background: var(--petrol-50); font-size: .88rem; font-weight: 700; }
.section--petrol .tag-list li { color: var(--white); border-color: rgba(255,255,255,.25); background: rgba(255,255,255,.08); }

.feature-band { display: grid; grid-template-columns: .85fr 1.15fr; gap: clamp(2rem, 5vw, 5rem); align-items: center; }
.book-cover { max-width: 22rem; margin-inline: auto; filter: drop-shadow(0 24px 30px rgba(17,51,49,.18)); }
.book-meta { color: var(--ink-soft); font-size: .93rem; }
.book-meta strong { display: block; margin-bottom: .2rem; }

.timeline { position: relative; display: grid; gap: 0; margin-top: 2rem; }
.timeline::before { content: ""; position: absolute; top: .6rem; bottom: .6rem; left: .48rem; width: 2px; background: var(--petrol-100); }
.timeline-item { position: relative; display: grid; grid-template-columns: 8rem 1fr; gap: 1.5rem; padding: 0 0 2rem 2rem; }
.timeline-item::before { content: ""; position: absolute; top: .55rem; left: 0; width: 1rem; aspect-ratio: 1; border: 3px solid var(--paper); border-radius: 50%; background: var(--terracotta); box-shadow: 0 0 0 2px var(--terracotta); }
.timeline-date { color: var(--terracotta-dark); font-weight: 800; }
.timeline-content h3 { margin-bottom: .35rem; font-family: var(--font-sans); font-size: 1.05rem; }
.timeline-content p { margin-bottom: 0; color: var(--ink-soft); }

.stats { display: grid; grid-template-columns: repeat(3,1fr); gap: 1rem; }
.stat { padding: 1.4rem; border-radius: var(--radius); background: rgba(255,255,255,.1); }
.stat strong { display: block; margin-bottom: .3rem; font-family: var(--font-serif); font-size: 2.2rem; }
.stat span { color: rgba(255,255,255,.75); font-size: .9rem; }

.logo-list { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: .7rem; margin: 0; padding: 0; list-style: none; }
.logo-list li { display: grid; min-height: 7rem; place-items: center; margin: 0; padding: 1.1rem; border: 1px solid var(--line); border-radius: var(--radius-sm); color: var(--ink-soft); background: var(--white); text-align: center; font-weight: 700; line-height: 1.35; }

.cta {
    position: relative;
    overflow: hidden;
    padding: clamp(2.5rem, 6vw, 5rem);
    border-radius: var(--radius-lg);
    color: rgba(255,255,255,.84);
    background: var(--petrol-900);
}
.cta::after { content: ""; position: absolute; right: -7rem; top: -8rem; width: 22rem; aspect-ratio: 1; border: 3.5rem solid rgba(255,255,255,.06); border-radius: 50%; }
.cta > * { position: relative; z-index: 1; }
.cta h2 { max-width: 48rem; color: var(--white); }
.cta p { max-width: 44rem; }
.cta--flush { border-radius: 0; }
.cta,
.cta p,
.cta .lead {
    color: #f5f1e8;
}

.cta .eyebrow {
    color: #d9c99b;
}

.topic-columns { columns: 2 18rem; column-gap: 3rem; }
.topic-columns li { break-inside: avoid; margin-bottom: .45rem; }
.check-list { padding: 0; list-style: none; }
.check-list li { position: relative; padding-left: 1.75rem; }
.check-list li::before { content: "✓"; position: absolute; left: 0; color: var(--petrol-700); font-weight: 900; }

.notice { padding: 1.15rem 1.3rem; border-left: 4px solid var(--petrol-700); border-radius: .35rem var(--radius-sm) var(--radius-sm) .35rem; background: var(--petrol-50); }
.notice--warm { border-color: var(--terracotta); background: var(--terracotta-soft); }
.notice--success { border-color: var(--success); background: #e9f4ee; color: #164d32; }
.notice--error { border-color: var(--error); background: #f9eaea; color: #702020; }
.notice p:last-child { margin-bottom: 0; }

.media-list { display: grid; gap: 1rem; }
.media-item { display: grid; grid-template-columns: 9rem 1fr; gap: 1.25rem; align-items: center; padding: 1rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--white); }
.media-item img { width: 100%; aspect-ratio: 16/10; object-fit: cover; border-radius: .7rem; }
.media-item h3 { margin-bottom: .35rem; font-family: var(--font-sans); font-size: 1.12rem; }
.media-item p { margin: 0 0 .45rem; color: var(--ink-soft); font-size: .95rem; }
.document-list { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: .8rem; margin: 0; padding: 0; list-style: none; }
.document-list li { margin: 0; }
.document-link { display: flex; gap: .9rem; align-items: flex-start; height: 100%; padding: 1.1rem; border: 1px solid var(--line); border-radius: var(--radius-sm); color: var(--ink); background: var(--white); text-decoration: none; }
.document-link:hover { border-color: var(--petrol-700); color: var(--petrol-800); background: var(--petrol-50); }
.document-link::before { content: "PDF"; flex: 0 0 auto; padding: .18rem .35rem; border-radius: .25rem; color: var(--white); background: var(--terracotta); font-size: .62rem; font-weight: 900; letter-spacing: .05em; }

.accordion { display: grid; gap: .8rem; }
details { border: 1px solid var(--line); border-radius: var(--radius-sm); background: var(--white); }
summary { position: relative; padding: 1rem 3rem 1rem 1.15rem; color: var(--ink); font-weight: 750; cursor: pointer; list-style: none; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; position: absolute; right: 1.1rem; top: .8rem; color: var(--petrol-700); font-size: 1.5rem; font-weight: 400; }
details[open] summary::after { content: "−"; }
.details-content { padding: 0 1.15rem 1.2rem; color: var(--ink-soft); }
.details-content ul { margin-bottom: 0; }
.archive-list { display: grid; gap: .8rem; margin: 0; padding: 0; list-style: none; }
.archive-list > li { margin: 0; padding-bottom: .8rem; border-bottom: 1px solid var(--line); }
.archive-list > li:last-child { border-bottom: 0; }
.archive-list strong { display: block; }
.archive-list span { color: var(--ink-soft); font-size: .93rem; }

.contact-layout { display: grid; grid-template-columns: 1.25fr .75fr; gap: clamp(2rem, 5vw, 5rem); align-items: start; }
.contact-panel { padding: clamp(1.4rem, 4vw, 2.4rem); border: 1px solid var(--line); border-radius: var(--radius); background: var(--white); box-shadow: var(--shadow-sm); }
.form-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 1rem; }
.form-field { display: grid; gap: .42rem; }
.form-field--full { grid-column: 1/-1; }
.form-field label, .form-label { color: var(--ink); font-size: .9rem; font-weight: 750; }
.required { color: var(--terracotta-dark); }
input, textarea, select {
    width: 100%;
    border: 1px solid #aebbb6;
    border-radius: .6rem;
    color: var(--ink);
    background: var(--white);
    padding: .78rem .9rem;
    line-height: 1.35;
}
textarea { min-height: 12rem; resize: vertical; }
input:focus, textarea:focus, select:focus { outline: 3px solid rgba(35,103,98,.2); border-color: var(--petrol-700); }
.field-hint { margin: 0; color: var(--ink-soft); font-size: .78rem; }
.checkbox { display: grid; grid-template-columns: auto 1fr; gap: .65rem; align-items: start; }
.checkbox input { width: 1.15rem; height: 1.15rem; margin-top: .28rem; }
.honeypot { position: absolute !important; width: 1px !important; height: 1px !important; overflow: hidden !important; clip: rect(0 0 0 0) !important; white-space: nowrap !important; }
.frc-captcha { min-height: 78px; }
.contact-aside { display: grid; gap: 1rem; }
.contact-card { padding: 1.5rem; border-radius: var(--radius); background: var(--cream); }
.contact-card h2 { font-size: 1.45rem; }
.contact-card p:last-child { margin-bottom: 0; }
.contact-note { padding-top: .9rem; border-top: 1px solid var(--line); color: var(--ink-soft); font-size: .88rem; }

.legal { max-width: var(--reading); }
.legal h2 { margin-top: 2.7rem; font-size: 2rem; }
.legal h3 { margin-top: 2rem; font-family: var(--font-sans); font-size: 1.2rem; }
.legal dl { display: grid; grid-template-columns: max-content 1fr; gap: .4rem 1rem; }
.legal dt { font-weight: 750; }
.legal dd { margin: 0; }

.site-footer { padding: 4rem 0 1.2rem; color: rgba(255,255,255,.74); background: #102e2c; }
.site-footer a { color: rgba(255,255,255,.85); }
.site-footer a:hover { color: var(--white); }
.site-footer h2 { color: var(--white); font-family: var(--font-sans); font-size: .78rem; letter-spacing: .12em; text-transform: uppercase; }
.brand--footer { margin-bottom: 1.2rem; color: var(--white); }
.brand--footer:hover { color: var(--white); }
.brand--footer .brand-copy strong { color: var(--white); }
.brand--footer .brand-copy small { color: rgba(255,255,255,.65); }
.footer-grid { display: grid; grid-template-columns: 1.4fr .75fr 1fr; gap: clamp(2rem, 6vw, 6rem); }
.footer-grid p { max-width: 26rem; }
.footer-links { margin: 0; padding: 0; list-style: none; }
.footer-links li { margin: .35rem 0; }
.footer-bottom { display: flex; justify-content: space-between; gap: 1rem; margin-top: 3rem; padding-top: 1.2rem; border-top: 1px solid rgba(255,255,255,.15); font-size: .82rem; }
.footer-bottom p { margin: 0; }
.footer-bottom nav { display: flex; gap: 1rem; }
.back-to-top { position: fixed; z-index: 900; right: 1rem; bottom: 1rem; width: 3rem; aspect-ratio: 1; border: 0; border-radius: 50%; color: var(--white); background: var(--petrol-800); box-shadow: var(--shadow-sm); opacity: 0; pointer-events: none; transform: translateY(.5rem); transition: opacity .2s, transform .2s; }
.back-to-top.is-visible { opacity: 1; pointer-events: auto; transform: translateY(0); }

@media (max-width: 68rem) {
    .nav-toggle { display: inline-flex; align-items: center; gap: .6rem; padding: .6rem; }
    .site-nav { position: absolute; top: calc(100% + 1px); right: 1rem; left: 1rem; display: none; padding: .8rem; border: 1px solid var(--line); border-radius: 0 0 var(--radius) var(--radius); background: var(--paper); box-shadow: var(--shadow-lg); }
    .site-nav.is-open { display: block; }
    .site-nav ul { display: grid; align-items: stretch; }
    .site-nav a { width: 100%; }
    .nav-contact { margin-left: 0 !important; margin-top: .4rem !important; }
    .nav-contact .button { justify-content: center; }
    .nav-toggle[aria-expanded="true"] .nav-toggle-icon i:nth-child(1) { transform: translateY(6px) rotate(45deg); }
    .nav-toggle[aria-expanded="true"] .nav-toggle-icon i:nth-child(2) { opacity: 0; }
    .nav-toggle[aria-expanded="true"] .nav-toggle-icon i:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }
    .hero-grid { min-height: auto; grid-template-columns: 1fr 1fr; }
    .offer-card { grid-column: span 3; }
    .offer-card:nth-child(4), .offer-card:nth-child(5) { grid-column: span 3; }
    .cards { grid-template-columns: repeat(2,minmax(0,1fr)); }
    .grid-4, .logo-list { grid-template-columns: repeat(2,minmax(0,1fr)); }
}

@media (max-width: 48rem) {
    body { font-size: 1rem; }
    .container { width: min(calc(100% - 1.35rem), var(--container)); }
    .brand-copy small { display: none; }
    .hero-grid { grid-template-columns: 1fr; padding-top: 3.5rem; }
    .hero-copy { text-align: left; }
    .hero-visual { width: min(90%, 30rem); margin: 0 auto; }
    .hero-note { right: -.5rem; bottom: 1rem; }
    .grid-2, .grid-3, .cards, .feature-band, .contact-layout { grid-template-columns: 1fr; }
    .offer-grid { grid-template-columns: 1fr; }
    .offer-card, .offer-card:nth-child(4), .offer-card:nth-child(5) { grid-column: auto; }
    .stats { grid-template-columns: 1fr; }
    .timeline-item { grid-template-columns: 1fr; gap: .2rem; }
    .logo-list, .document-list { grid-template-columns: 1fr; }
    .media-item { grid-template-columns: 1fr; }
    .media-item img { max-height: 14rem; }
    .form-grid { grid-template-columns: 1fr; }
    .form-field--full { grid-column: auto; }
    .footer-grid { grid-template-columns: 1fr; }
    .footer-bottom { flex-direction: column; }
    .topic-columns { columns: 1; }
    .legal dl { grid-template-columns: 1fr; }
}

@media (max-width: 30rem) {
    h1 { font-size: 2.45rem; }
    .hero-note { position: relative; right: auto; bottom: auto; margin: -1rem .7rem 0; }
    .button-row { align-items: stretch; }
    .button-row .button { width: 100%; }
}

:focus-visible { outline: 3px solid var(--gold); outline-offset: 3px; }
@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}
code { padding: .12rem .3rem; border-radius: .25rem; background: rgba(18,63,60,.08); font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: .88em; }
button:disabled { cursor: not-allowed; opacity: .55; transform: none !important; }
@media (min-width: 48.01rem) { .hero-visual { align-self: center; } }

/* Petrolfarbene Karte: beide Klassen befinden sich auf demselben Element */
.card.section--petrol {
    color: rgba(255, 255, 255, .88);
    background: var(--petrol-900);
}

.card.section--petrol strong {
    color: var(--white);
}

.card.section--petrol .stat span {
    color: rgba(255, 255, 255, .75);
}

.program-section,
.program-accordion details[id] {
    scroll-margin-top: 7.5rem;
}

.program-layout {
    align-items: start;
}

.program-sidebar {
    align-self: start;
}

.program-accordion summary {
    padding-right: 3rem;
}

.program-event-heading,
.program-event-title,
.program-event-meta {
    display: block;
}

.program-event-heading {
    min-width: 0;
}

.program-event-title {
    line-height: 1.45;
}

.program-event-meta {
    margin-top: 0.35rem;
    font-size: 0.9rem;
    font-weight: 500;
    line-height: 1.4;
    opacity: 0.72;
}

@media (min-width: 901px) {
    .program-sidebar {
        position: sticky;
        top: 7.5rem;
    }
}