:root {
  --bg: #f5f4ef;
  --primary: #616259;
  --primary-dark: #4b4d46;
  --secondary: #919f99;
  --accent: #9ad2c4;
  --accent-deep: #5f9f90;
  --highlight: #e4e5d1;
  --ink: #30322d;
  --muted: #70736b;
  --paper: #fbfaf6;
  --paper-strong: #fffefa;
  --line: rgba(97, 98, 89, .18);
  --line-strong: rgba(97, 98, 89, .29);
  --shadow-sm: 0 12px 34px rgba(71, 73, 67, .09);
  --shadow: 0 24px 70px rgba(71, 73, 67, .14);
  --shadow-strong: 0 34px 90px rgba(56, 59, 53, .18);
  --radius-sm: 12px;
  --radius: 24px;
  --radius-lg: 38px;
  --shell: min(1160px, calc(100% - 40px));
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 96px; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: system-ui, "Segoe UI", Roboto, Ubuntu, Cantarell, "Noto Sans", sans-serif;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
.shell { width: var(--shell); margin-inline: auto; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; left: 16px; top: 10px; z-index: 100; transform: translateY(-150%); background: var(--ink); color: #fff; padding: 10px 16px; border-radius: 10px; }
.skip-link:focus { transform: none; }

.site-header { position: fixed; inset: 0 0 auto; z-index: 50; transition: background .25s ease, box-shadow .25s ease; }
.site-header.scrolled { background: rgba(245,244,239,.92); backdrop-filter: blur(16px); box-shadow: 0 1px 0 var(--line); }
.nav-wrap { height: 84px; display: flex; align-items: center; justify-content: space-between; }
.brand img { width: 140px; height: auto; }
.main-nav { display: flex; align-items: center; gap: 28px; font-size: .93rem; font-weight: 700; }
.main-nav > a:not(.button) { color: #53564f; position: relative; }
.main-nav > a:not(.button)::after { content: ""; position: absolute; left: 0; right: 100%; bottom: -5px; height: 2px; background: var(--accent); transition: right .2s ease; }
.main-nav > a:not(.button):hover::after,
.main-nav > a:not(.button):focus-visible::after { right: 0; }
.menu-button { display: none; border: 0; background: transparent; padding: 8px; cursor: pointer; }
.menu-button > span:not(.sr-only) { display: block; width: 24px; height: 2px; background: var(--primary); margin: 5px; transition: transform .2s ease, opacity .2s ease; }

.button { display: inline-flex; align-items: center; justify-content: center; min-height: 52px; padding: 0 24px; border-radius: 999px; background: var(--accent); color: #2e3834; font-weight: 800; box-shadow: 0 12px 28px rgba(118, 170, 157, .25); transition: transform .2s ease, box-shadow .2s ease, background .2s ease; }
.button:hover { transform: translateY(-2px); box-shadow: 0 16px 34px rgba(118, 170, 157, .34); }
.button:focus-visible, .text-link:focus-visible, .principle-card:focus-visible, summary:focus-visible, .menu-button:focus-visible { outline: 3px solid rgba(95,159,144,.42); outline-offset: 4px; }
.button-small { min-height: 42px; padding-inline: 18px; }
.button-dark { background: var(--primary); color: #fff; box-shadow: 0 16px 38px rgba(53,55,50,.2); }
.button-dark:hover { background: var(--primary-dark); }
.text-link { display: inline-flex; gap: 8px; align-items: center; font-weight: 800; color: var(--primary); }
.text-link span { transition: transform .2s ease; }
.text-link:hover span { transform: translateY(3px); }

.eyebrow, .section-kicker { margin: 0 0 18px; text-transform: uppercase; letter-spacing: .14em; font-size: .73rem; font-weight: 850; color: var(--secondary); }
.eyebrow { display: flex; align-items: center; gap: 12px; }
.eyebrow span { width: 30px; height: 2px; background: var(--accent); }
h1, h2 { margin: 0 0 22px; color: var(--primary); letter-spacing: -.035em; }
h1 { font-family: Georgia, "Times New Roman", serif; font-size: clamp(3.8rem, 4.45vw, 4.65rem); font-weight: 600; line-height: .96; }
h1 em { display: block; font-style: normal; color: var(--ink); }
h2 { font-family: Georgia, "Times New Roman", serif; font-size: clamp(2.05rem, 2.9vw, 2.95rem); font-weight: 600; line-height: 1.05; letter-spacing: -.035em; }
.lead { margin: 0; max-width: 660px; color: var(--muted); font-size: 1.1rem; }
.section-heading { max-width: 820px; margin: 0 auto 58px; text-align: center; }
.section-heading > p:not(.section-kicker) { margin: 0; color: var(--muted); font-size: 1.04rem; }

/* Hero */
.hero { min-height: 720px; padding: 132px 0 78px; overflow: hidden; position: relative; }
.hero::before { content: ""; position: absolute; width: 590px; height: 590px; border-radius: 50%; background: rgba(154,210,196,.18); filter: blur(10px); right: -170px; top: -175px; }
.hero::after { content: ""; position: absolute; width: 340px; height: 340px; border-radius: 50%; background: rgba(228,229,209,.72); left: -190px; bottom: -150px; }
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.04fr .96fr; gap: 64px; align-items: start; }
.hero-actions { display: flex; align-items: center; gap: 26px; margin-top: 28px; }
.hero-principles { list-style: none; display: flex; flex-wrap: wrap; gap: 12px; margin: 26px 0 0; padding: 0; }
.hero-principles li { display: inline-flex; align-items: center; gap: 8px; min-height: 40px; padding: 0 15px; border: 1px solid var(--line); border-radius: 999px; background: rgba(251,250,246,.55); color: #5f625b; font-size: .82rem; font-weight: 690; }
.hero-principles svg { width: 18px; height: 18px; fill: none; stroke: var(--primary); stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.hero-visual { min-height: 535px; margin-top: 48px; position: relative; isolation: isolate; }
.product-frame { position: absolute; margin: 0; overflow: hidden; background: var(--paper-strong); border: 1px solid rgba(97,98,89,.18); border-radius: 12px; box-shadow: var(--shadow-strong); }
.product-cloud { width: min(95%, 620px); right: 0; top: -8px; z-index: 1; }
.product-mail { width: min(76%, 480px); left: -3%; bottom: 28px; z-index: 2; }
.product-context { min-height: 42px; padding: 0 15px; display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 10px; background: rgba(251,250,246,.98); border-bottom: 1px solid var(--line); color: #686b63; font-size: .7rem; }
.product-context strong { color: var(--primary); font-size: .68rem; letter-spacing: .1em; text-transform: uppercase; }
.context-mark { width: 9px; height: 9px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 6px rgba(154,210,196,.16); }
.product-frame picture, .product-frame img { display: block; width: 100%; }
.product-frame img { height: auto; object-fit: cover; object-position: top center; }
.product-cloud img { aspect-ratio: 1.36 / 1; }
.product-mail img { aspect-ratio: 1.43 / 1; }
/* Prinzip */
.statement { padding: 118px 0; background: var(--paper); }
.statement-grid { display: grid; grid-template-columns: 1fr; gap: 18px; align-items: start; justify-items: center; text-align: center; max-width: 1040px; margin: 0 auto 42px; }
.statement-grid h2 { max-width: 980px; }
.statement-grid > div { max-width: 1060px; }
.statement-grid > div > p:not(.interaction-hint) { max-width: 980px; margin: 0 auto; color: var(--muted); font-size: 1.05rem; }
.interaction-hint { display: inline-flex; align-items: center; gap: 9px; margin: 22px 0 0; color: var(--secondary); font-size: .76rem; font-weight: 850; letter-spacing: .08em; text-transform: uppercase; }
.interaction-hint svg { width: 17px; height: 17px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; }
.principle-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; }
.principle-card { appearance: none; width: 100%; padding: 0; border: 0; border-radius: var(--radius); background: transparent; color: inherit; text-align: left; cursor: pointer; perspective: 1100px; }
.principle-card-inner { position: relative; display: grid; min-height: 218px; transform-style: preserve-3d; transition: transform .62s cubic-bezier(.2,.72,.25,1); }
.principle-card.is-flipped .principle-card-inner { transform: rotateY(180deg); }
.principle-face { grid-area: 1 / 1; padding: 28px 30px; border: 1px solid rgba(95,159,144,.34); border-radius: var(--radius); background: var(--bg); backface-visibility: hidden; -webkit-backface-visibility: hidden; box-shadow: 0 16px 44px rgba(84,85,79,.04); }
.principle-front { display: grid; grid-template-columns: minmax(0, 2fr) minmax(96px, 1fr); grid-template-rows: auto 1fr auto; column-gap: 24px; align-items: stretch; }
.principle-back { display: flex; flex-direction: column; justify-content: space-between; transform: rotateY(180deg); background: var(--primary); color: #fff; border-color: var(--primary); }
.principle-icon { grid-column: 2; grid-row: 1 / span 3; justify-self: stretch; align-self: stretch; display: grid; place-items: center; min-width: 96px; min-height: 148px; border-radius: 21px; background: var(--highlight); }
.principle-icon svg { width: 54px; height: 54px; fill: none; stroke: var(--accent-deep); stroke-width: 1.65; stroke-linecap: round; stroke-linejoin: round; }
.principle-face strong { display: block; font-family: system-ui, "Segoe UI", Roboto, Ubuntu, Cantarell, "Noto Sans", sans-serif; line-height: 1.02; font-weight: 780; letter-spacing: -.035em; }
.principle-front strong { grid-column: 1; grid-row: 1; color: var(--primary); font-size: 1.48rem; }
.principle-front strong span { display: block; }
.principle-back strong { max-width: none; font-size: 1.42rem; color: #fff; }
.principle-face > span:not(.principle-icon) { color: #e4e6de; font-size: .93rem; line-height: 1.58; }
.principle-face small { display: inline-flex; gap: 6px; align-items: center; color: var(--secondary); font-size: .73rem; font-weight: 800; text-transform: uppercase; letter-spacing: .08em; }
.principle-front small { grid-column: 1; grid-row: 3; align-self: end; }
.principle-back small { margin-top: 18px; color: var(--accent); }
.principle-card:hover .principle-front { border-color: rgba(95,159,144,.62); box-shadow: var(--shadow-sm); }

/* Angebot */
.offers { padding: 118px 0; }
.access-card { display: grid; grid-template-columns: .92fr 1.08fr; overflow: hidden; border: 1px solid var(--line); border-radius: 30px; background: var(--paper-strong); box-shadow: var(--shadow-sm); }
.access-summary { padding: 52px 48px; text-align: center; border-right: 1px solid var(--line); background: linear-gradient(145deg, rgba(154,210,196,.09), rgba(251,250,246,.9)); }
.access-icon { display: grid; place-items: center; width: 62px; height: 62px; margin: 0 auto 14px; border: 1px solid rgba(95,159,144,.42); border-radius: 50%; }
.access-icon svg { width: 34px; height: 34px; fill: none; stroke: var(--accent-deep); stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }
.access-label { margin: 0; color: var(--accent-deep); text-transform: uppercase; letter-spacing: .1em; font-size: .75rem; font-weight: 850; }
.access-price { display: flex; align-items: baseline; justify-content: center; gap: 8px; margin: 5px 0 23px; color: var(--ink); }
.access-price span { font-size: 1rem; font-weight: 650; }
.access-price strong { font-family: Georgia, "Times New Roman", serif; color: var(--primary); font-size: 4.9rem; line-height: 1; font-weight: 600; letter-spacing: -.06em; }
.access-lead { color: var(--ink); font-size: 1.03rem; font-weight: 680; }
.access-summary > p:not(.access-label,.access-price,.access-lead,.access-footnote) { color: var(--muted); font-size: .91rem; }
.access-summary .button { width: min(100%, 390px); margin-top: 13px; }
.access-footnote { display: flex; align-items: flex-start; justify-content: center; gap: 9px; max-width: 390px; margin: 17px auto 0; color: var(--muted); font-size: .8rem; }
.access-footnote svg { flex: 0 0 auto; width: 17px; height: 17px; margin-top: 3px; fill: none; stroke: var(--accent-deep); stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.access-features { padding: 28px 42px; display: grid; align-content: center; }
.access-feature { display: grid; grid-template-columns: 58px 1fr; gap: 20px; align-items: start; padding: 20px 0; border-bottom: 1px solid var(--line); }
.access-feature:last-child { border-bottom: 0; }
.access-feature > span { display: grid; place-items: center; width: 50px; height: 50px; border-radius: 50%; background: rgba(154,210,196,.16); }
.access-feature svg { width: 25px; height: 25px; fill: none; stroke: var(--accent-deep); stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.access-feature h3 { margin: 0 0 4px; color: var(--ink); font-size: 1rem; }
.access-feature p { margin: 0; color: var(--muted); font-size: .9rem; }
.availability-note { max-width: 810px; margin: 26px auto 0; display: grid; grid-template-columns: 28px 1fr; gap: 15px; align-items: start; padding: 18px 22px; border-radius: 18px; background: rgba(145,159,153,.1); color: var(--muted); }
.availability-note svg { width: 23px; height: 23px; fill: none; stroke: var(--accent-deep); stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.availability-note p { margin: 0; font-size: .88rem; }
.availability-note strong { color: var(--primary); }

/* Verantwortung */
.infrastructure { padding: 104px 0 112px; background: var(--highlight); overflow: hidden; }
.infra-intro { max-width: 100%; margin-bottom: 42px; text-align: center; }
.infra-intro h2 { max-width: 1040px; margin: 0 auto; }
.infra-layout { display: grid; grid-template-columns: 1.04fr .96fr; gap: 68px; align-items: stretch; }
.infra-copy { display: flex; flex-direction: column; min-width: 0; }
.infra-copy > p { margin: 0 0 20px; color: #676a63; font-size: 1.02rem; }
.tech-list { display: grid; gap: 0; flex: 1; }
.tech-list article { display: grid; grid-template-columns: 54px 1fr; gap: 18px; align-items: start; padding: 21px 0; border-bottom: 1px solid rgba(97,98,89,.18); }
.tech-list article:first-child { padding-top: 14px; }
.tech-list article:last-child { border-bottom: 0; padding-bottom: 0; }
.tech-icon { display: grid; place-items: center; width: 48px; height: 48px; border: 1px solid rgba(95,159,144,.45); border-radius: 15px; background: rgba(251,250,246,.34); }
.tech-icon svg { width: 25px; height: 25px; fill: none; stroke: var(--accent-deep); stroke-width: 1.65; stroke-linecap: round; stroke-linejoin: round; }
.tech-list h3 { margin: 1px 0 4px; color: var(--primary); font-size: 1rem; }
.tech-list p { margin: 0; color: #676a63; font-size: .89rem; }
.infra-panel { display: flex; flex-direction: column; height: 100%; overflow: hidden; background: #464a44; color: #fff; border: 0; border-radius: 20px; box-shadow: 0 30px 72px rgba(71,73,66,.22); }
.infra-panel-head { display: grid; grid-template-columns: 58px 1fr; gap: 14px; align-items: center; padding: 17px 24px; background: #3f433e; border-bottom: 1px solid rgba(255,255,255,.08); }
.infra-panel-head img { width: 58px; height: auto; }
.infra-panel-head strong, .infra-panel-head small { display: block; }
.infra-panel-head strong { color: #fff; font-family: system-ui, "Segoe UI", Roboto, Ubuntu, Cantarell, "Noto Sans", sans-serif; font-size: 1.08rem; line-height: 1.2; font-weight: 600; letter-spacing: -.015em; }
.infra-panel-head small { margin-top: 4px; color: #bec3bb; font-size: .73rem; }
.infra-rows { flex: 1; padding: 0; display: grid; gap: 0; align-content: stretch; }
.infra-row { display: grid; grid-template-columns: 44px 112px 1fr; gap: 16px; align-items: center; padding: 22px 24px; border: 0; border-top: 1px solid rgba(255,255,255,.11); border-radius: 0; background: transparent; }
.infra-row:first-child { border-top: 0; }
.infra-row-icon { display: grid; place-items: center; width: 40px; height: 40px; }
.infra-row-icon svg { width: 23px; height: 23px; fill: none; stroke: var(--accent); stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.infra-key { color: var(--accent); font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: .72rem; font-weight: 800; letter-spacing: .04em; text-transform: uppercase; }
.infra-row strong, .infra-row small { display: block; }
.infra-row strong { margin-bottom: 2px; font-size: 1rem; font-weight: 600; }
.infra-row small { color: #c2c5bd; font-size: .73rem; line-height: 1.45; }
.panel-caption { display: flex; align-items: center; justify-content: center; gap: 9px; padding: 18px 24px; background: var(--accent); color: #35413d; font-size: .78rem; font-weight: 820; text-align: center; border: 0; box-shadow: none; }
.panel-caption svg { width: 19px; height: 19px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }

/* Ablauf */
.process { padding: 118px 0; background: var(--paper); }
.process-heading { margin-bottom: 68px; }
.process-list { position: relative; display: grid; grid-template-columns: repeat(4, 1fr); gap: 34px; list-style: none; padding: 0; margin: 0; }
.process-list::before { content: ""; position: absolute; top: 19px; left: 10.5%; right: 10.5%; height: 1px; background: rgba(95,159,144,.43); }
.process-step { position: relative; z-index: 1; display: flex; flex-direction: column; align-items: center; text-align: center; }
.step-number { display: grid; place-items: center; width: 40px; height: 40px; margin-bottom: 22px; border-radius: 50%; background: var(--accent-deep); color: #fff; font-size: .9rem; font-weight: 850; box-shadow: 0 0 0 8px var(--paper); }
.step-icon { display: grid; place-items: center; width: 88px; height: 88px; margin-bottom: 22px; border-radius: 50%; background: rgba(154,210,196,.17); }
.step-icon svg { width: 42px; height: 42px; fill: none; stroke: var(--accent-deep); stroke-width: 1.55; stroke-linecap: round; stroke-linejoin: round; }
.process-step h3 { margin: 0 0 10px; color: var(--primary); font-family: system-ui, "Segoe UI", Roboto, Ubuntu, Cantarell, "Noto Sans", sans-serif; font-size: 1.18rem; font-weight: 780; letter-spacing: -.02em; }
.process-step p { margin: 0; color: var(--muted); font-size: .9rem; }
.process-note { max-width: 830px; margin: 58px auto 0; display: grid; grid-template-columns: 52px 1fr; gap: 20px; align-items: center; padding: 22px 28px; border: 1px solid rgba(95,159,144,.18); border-radius: 20px; background: rgba(228,229,209,.46); }
.process-note > svg { width: 42px; height: 42px; fill: none; stroke: var(--accent-deep); stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.process-note strong { color: var(--primary); font-size: 1.02rem; }
.process-note p { margin: 2px 0 0; color: var(--muted); font-size: .88rem; }

/* Grenzen, FAQ, CTA */
.boundaries { padding: 82px 0; background: var(--primary); color: #fff; }
.boundaries-inner { display: grid; grid-template-columns: .92fr 1.08fr; gap: 88px; align-items: center; }
.boundaries-inner > div { grid-column: 2; grid-row: 1; text-align: right; }
.section-kicker.light { color: var(--accent); }
.boundaries h2 { color: #fff; margin-bottom: 0; }
.boundaries-inner > p { grid-column: 1; grid-row: 1; margin: 0; color: #dbddd5; font-size: 1.01rem; text-align: left; }
.faq { padding: 118px 0; background: var(--bg); }
.faq-grid { display: grid; grid-template-columns: .72fr 1.28fr; gap: 100px; align-items: start; }
.faq-intro { position: sticky; top: 130px; }
.faq-intro > p:not(.section-kicker) { color: var(--muted); }
.faq-list { border-top: 1px solid var(--line); }
details { border-bottom: 1px solid var(--line); }
summary { cursor: pointer; list-style: none; padding: 25px 44px 25px 0; color: var(--primary); font-size: 1.08rem; font-weight: 780; position: relative; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; position: absolute; right: 8px; top: 20px; font-size: 1.6rem; color: var(--secondary); font-weight: 400; transition: transform .2s ease; }
details[open] summary::after { transform: rotate(45deg); }
details p { margin: -5px 44px 25px 0; color: var(--muted); }
.cta { padding: 110px 0; }
.cta-inner { text-align: center; padding: 76px 40px; border-radius: var(--radius-lg); background: linear-gradient(145deg, var(--highlight), #d8e2d9); position: relative; overflow: hidden; }
.cta-inner::before, .cta-inner::after { content: ""; position: absolute; width: 260px; height: 260px; border-radius: 50%; background: rgba(154,210,196,.48); }
.cta-inner::before { left: -120px; top: -105px; }
.cta-inner::after { right: -130px; bottom: -150px; }
.cta-inner > * { position: relative; z-index: 1; }
.cta h2 { margin-bottom: 14px; }
.cta-inner > p:not(.section-kicker) { max-width: 700px; margin: 0 auto 28px; color: #64675f; font-size: 1.04rem; }
.cta small { display: block; margin-top: 15px; color: #777a72; }

/* Footer und Rechtliches */
.site-footer { padding: 68px 0 26px; background: #e9e8e0; }
.footer-grid { display: grid; grid-template-columns: 1.7fr repeat(3, 1fr); gap: 45px; padding-bottom: 55px; }
.footer-brand img { width: 230px; }
.footer-brand p { color: var(--muted); font-size: .9rem; }
.footer-grid > div:not(.footer-brand) { display: flex; flex-direction: column; align-items: flex-start; gap: 9px; }
.footer-grid strong { color: var(--primary); margin-bottom: 5px; font-size: .9rem; }
.footer-grid a { color: var(--muted); font-size: .85rem; }
.footer-grid a:hover { color: var(--primary); }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; padding-top: 22px; border-top: 1px solid var(--line); color: #7b7e76; font-size: .75rem; }

.reveal { opacity: 1; transform: none; }
.js .reveal { opacity: 0; transform: translateY(18px); transition: opacity .65s ease, transform .65s ease; }
.js .reveal.visible { opacity: 1; transform: none; }

.legal-page {
  padding: 110px 0 64px;
}

.legal-content {
  max-width: 820px;
}

.legal-content h1 {
  font-size: clamp(2.8rem, 6vw, 4.25rem);
  line-height: 1;
  margin-bottom: 2.5rem;
}

.legal-content h2 {
  margin-top: 3.25rem;
  margin-bottom: 1rem;
  color: var(--primary);
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  line-height: 1.15;
}

.legal-content p {
  font-size: 1.05rem;
  line-height: 1.65;
}

.legal-content a {
  color: var(--accent-deep);
  text-decoration: underline;
  text-underline-offset: .18em;
}

.legal-content a:hover {
  color: var(--primary-dark);
}

.legal-content a:focus-visible {
  outline: 3px solid rgba(95, 159, 144, .42);
  outline-offset: 3px;
  border-radius: 3px;
}

.todo-box {
  padding: 22px;
  margin: 30px 0;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--highlight);
}

@media (max-width: 1050px) {
  .hero-grid { gap: 38px; }
  .infra-layout { gap: 44px; grid-template-columns: 1fr 1fr; }
  .infra-row { grid-template-columns: 42px 94px 1fr; }
}

@media (max-width: 980px) {
  .hero-grid, .infra-layout, .boundaries-inner, .faq-grid { grid-template-columns: 1fr; }
  .hero { padding-top: 122px; }
  .hero-copy { max-width: 780px; }
  .hero-visual { margin-top: 18px; min-height: 610px; }
  .product-cloud { width: min(86%, 680px); right: 2%; }
  .product-mail { width: min(66%, 520px); left: 3%; }
  .principle-grid { grid-template-columns: 1fr; max-width: 720px; }
  .principle-card-inner { min-height: 198px; }
  .statement-grid { grid-template-columns: 1fr; gap: 16px; }
  .access-card { grid-template-columns: 1fr; }
  .access-summary { border-right: 0; border-bottom: 1px solid var(--line); }
  .infra-intro { margin-bottom: 34px; }
  .infra-layout { gap: 42px; }
  .infra-copy { order: 1; }
  .infra-panel { order: 2; max-width: 760px; width: 100%; }
  .process-list { grid-template-columns: repeat(2, 1fr); gap: 52px 44px; }
  .process-list::before { display: none; }
  .faq-grid { gap: 45px; }
  .faq-intro { position: static; }
  .boundaries-inner { gap: 28px; }
  .boundaries-inner > div, .boundaries-inner > p { grid-column: 1; }
  .boundaries-inner > div { grid-row: 1; text-align: left; }
  .boundaries-inner > p { grid-row: 2; }
  .footer-grid { grid-template-columns: 1.6fr 1fr 1fr; }
  .footer-grid > div:last-child { grid-column: 2; }
}

@media (max-width: 760px) {
  :root { --shell: min(100% - 28px, 1160px); --radius: 20px; --radius-lg: 28px; }
  html { scroll-padding-top: 80px; }
  .nav-wrap { height: 72px; }
  .brand img { width: 124px; }
  .menu-button { display: block; z-index: 2; }
  .main-nav { position: fixed; inset: 72px 14px auto; display: none; flex-direction: column; align-items: stretch; gap: 0; padding: 14px; background: var(--paper); border: 1px solid var(--line); border-radius: 20px; box-shadow: var(--shadow); }
  .main-nav.open { display: flex; }
  .main-nav a { padding: 12px 10px; }
  .main-nav .button { margin-top: 7px; }
  .hero { min-height: auto; padding: 108px 0 68px; }
  .hero-grid { gap: 28px; }
  h1 { font-size: clamp(3rem, 13vw, 4rem); }
  h2 { font-size: clamp(2rem, 9vw, 2.7rem); }
  .lead { font-size: 1rem; }
  .hero-actions { align-items: stretch; flex-direction: column; gap: 16px; }
  .text-link { justify-content: center; }
  .hero-principles { gap: 8px; }
  .hero-principles li { width: 100%; justify-content: center; }
  .hero-visual { min-height: 455px; margin-top: 0; }
  .product-cloud { width: 94%; right: -1%; top: -6px; border-radius: 10px; }
  .product-mail { width: 78%; left: -1%; bottom: 28px; border-radius: 10px; }
  .product-context { min-height: 34px; padding: 0 10px; font-size: .59rem; }
  .product-context strong { font-size: .56rem; }
  .context-mark { width: 7px; height: 7px; box-shadow: 0 0 0 4px rgba(154,210,196,.16); }
  .statement, .offers, .infrastructure, .process, .faq { padding: 82px 0; }
  .statement-grid { margin-bottom: 30px; }
  .statement-grid > div > p:not(.interaction-hint) { font-size: 1rem; }
  .principle-grid { gap: 14px; }
  .principle-card-inner { min-height: 190px; }
  .principle-face { padding: 22px; }
  .principle-front { grid-template-columns: minmax(0, 2fr) minmax(88px, 1fr); column-gap: 18px; }
  .principle-front strong { font-size: 1.48rem; }
  .principle-back strong { font-size: 1.22rem; }
  .principle-icon { min-width: 88px; min-height: 142px; border-radius: 18px; }
  .principle-icon svg { width: 48px; height: 48px; }
  .principle-face > span:not(.principle-icon) { font-size: .89rem; }
  .access-summary { padding: 42px 24px; }
  .access-features { padding: 12px 24px; }
  .access-feature { grid-template-columns: 46px 1fr; gap: 14px; padding: 18px 0; }
  .access-feature > span { width: 42px; height: 42px; }
  .access-feature svg { width: 22px; height: 22px; }
  .availability-note { grid-template-columns: 24px 1fr; padding: 17px; }
  .infra-intro { margin-bottom: 28px; }
  .infra-copy > p { font-size: 1rem; }
  .tech-list article { grid-template-columns: 46px 1fr; gap: 14px; padding: 20px 0; }
  .tech-icon { width: 42px; height: 42px; border-radius: 13px; }
  .infra-panel { border-radius: 18px; }
  .infra-panel-head { grid-template-columns: 56px 1fr; gap: 14px; padding: 17px 18px; }
  .infra-panel-head img { width: 56px; }
  .infra-panel-head strong { font-size: 1.02rem; }
  .infra-panel-head small { font-size: .68rem; }
  .infra-rows { padding: 14px; }
  .infra-row { grid-template-columns: 40px 1fr; gap: 10px 12px; padding: 14px; }
  .infra-key { grid-column: 2; }
  .infra-row > div { grid-column: 2; }
  .infra-row-icon { grid-row: 1 / span 2; align-self: stretch; height: auto; min-height: 64px; }
  .process-heading { margin-bottom: 46px; }
  .process-list { grid-template-columns: 1fr; gap: 0; padding-left: 56px; }
  .process-list::before { display: block; top: 20px; bottom: 20px; left: 20px; right: auto; width: 1px; height: auto; }
  .process-step { align-items: flex-start; text-align: left; padding: 0 0 44px; }
  .process-step:last-child { padding-bottom: 0; }
  .step-number { position: absolute; left: -56px; top: 0; margin: 0; box-shadow: 0 0 0 8px var(--paper); }
  .step-icon { width: 64px; height: 64px; margin-bottom: 17px; }
  .step-icon svg { width: 31px; height: 31px; }
  .process-note { grid-template-columns: 40px 1fr; gap: 14px; padding: 20px; }
  .process-note > svg { width: 34px; height: 34px; }
  .boundaries { padding: 64px 0; }
  .cta { padding: 70px 0; }
  .cta-inner { padding: 56px 22px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
  .footer-grid > div:last-child { grid-column: auto; }
  .footer-bottom { flex-direction: column; }
}


@media (max-width: 430px) {
  .hero-visual { min-height: 400px; }
  .product-cloud { width: 96%; }
  .product-mail { width: 82%; bottom: 18px; }
  .access-price { flex-wrap: wrap; }
  .access-price strong { font-size: 4rem; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-brand, .footer-grid > div:last-child { grid-column: auto; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
  .js .reveal { opacity: 1; transform: none; }
  .principle-card-inner { transform: none !important; }
  .principle-front, .principle-back { transform: none; }
  .principle-card:not(.is-flipped) .principle-back { visibility: hidden; }
  .principle-card.is-flipped .principle-front { visibility: hidden; }
}

/* AUTOMATISCHER DARKMODE
   Folgt ausschließlich der Betriebssystem-/Browserpräferenz.
   Keine Cookies, kein Local Storage und kein manueller Schalter. */

:root {
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #171a18;
    --primary: #d7ddd4;
    --primary-dark: #f0f3ee;
    --secondary: #9aa69f;
    --accent: #8fd3c1;
    --accent-deep: #71c3ae;
    --highlight: #29332e;
    --ink: #edf0ea;
    --muted: #adb4ad;
    --paper: #1e2320;
    --paper-strong: #242a26;
    --line: rgba(226, 235, 228, .14);
    --line-strong: rgba(226, 235, 228, .24);
    --shadow-sm: 0 12px 34px rgba(0, 0, 0, .22);
    --shadow: 0 24px 70px rgba(0, 0, 0, .34);
    --shadow-strong: 0 34px 90px rgba(0, 0, 0, .44);
  }

  body {
    background: var(--bg);
    color: var(--ink);
  }

  .skip-link {
    background: var(--ink);
    color: var(--bg);
  }

  .site-header.scrolled {
    background: rgba(23, 26, 24, .92);
  }

  .main-nav > a:not(.button) {
    color: #cbd1cb;
  }

  .menu-button > span:not(.sr-only) {
    background: var(--primary);
  }

  .button {
    color: #18211d;
    box-shadow: 0 12px 28px rgba(0, 0, 0, .24);
  }

  .button:hover {
    box-shadow: 0 16px 34px rgba(0, 0, 0, .34);
  }

  .button-dark {
    background: #d7ddd4;
    color: #18201c;
    box-shadow: 0 16px 38px rgba(0, 0, 0, .32);
  }

  .button-dark:hover {
    background: #f0f3ee;
  }

  .hero::before {
    background: rgba(111, 195, 173, .13);
  }

  .hero::after {
    background: rgba(75, 94, 84, .38);
  }

  .hero-principles li {
    background: rgba(36, 42, 38, .72);
    color: #cbd1cb;
  }

  .product-frame {
    border-color: var(--line-strong);
  }

  .product-context {
    background: rgba(30, 35, 32, .98);
    color: #b8c0ba;
  }

  .principle-face {
    border-color: rgba(143, 211, 193, .28);
    box-shadow: 0 16px 44px rgba(0, 0, 0, .18);
  }

  .principle-back {
    background: #303a35;
    border-color: rgba(143, 211, 193, .34);
    color: #f4f6f2;
  }

  .principle-back strong {
    color: #f4f6f2;
  }

  .principle-face > span:not(.principle-icon) {
    color: #d3d9d3;
  }

  .access-summary {
    background:
      linear-gradient(
        145deg,
        rgba(143, 211, 193, .08),
        rgba(30, 35, 32, .94)
      );
  }

  .access-feature > span,
  .step-icon {
    background: rgba(143, 211, 193, .12);
  }

  .availability-note {
    background: rgba(154, 166, 159, .1);
  }

  .infra-copy > p,
  .tech-list p {
    color: var(--muted);
  }

  .tech-list article {
    border-bottom-color: var(--line);
  }

  .tech-icon {
    background: rgba(36, 42, 38, .55);
  }

  .step-number {
    color: #18211d;
  }

  .process-note {
    background: rgba(41, 51, 46, .72);
    border-color: var(--line);
  }

  .boundaries {
    background: #29322e;
    color: #f1f4ef;
  }

  .boundaries h2 {
    color: #f1f4ef;
  }

  .boundaries-inner > p {
    color: #cbd2cc;
  }

  .cta-inner {
    background:
      linear-gradient(
        145deg,
        #29352f,
        #202a25
      );
  }

  .cta-inner::before,
  .cta-inner::after {
    background: rgba(111, 195, 173, .14);
  }

  .cta-inner > p:not(.section-kicker) {
    color: #c3cac4;
  }

  .cta small {
    color: #a8b0aa;
  }

  .site-footer {
    background: #121513;
  }

  .footer-bottom {
    color: #969e98;
  }

  .legal-content a:hover {
    color: var(--primary);
  }

  .todo-box {
    background: #29332e;
  }

  @media (max-width: 760px) {
    .main-nav {
      background: var(--paper);
    }
  }
}

/* Language switch */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-left: auto;
}

.language-switch {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  padding: 3px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: var(--paper);
  box-shadow: 0 6px 18px rgba(71, 73, 67, .08);
}

.language-switch a,
.language-switch span {
  display: inline-flex;
  min-width: 36px;
  min-height: 30px;
  align-items: center;
  justify-content: center;
  padding: 5px 9px;
  border-radius: 999px;
  color: var(--muted);
  font-size: .76rem;
  font-weight: 850;
  letter-spacing: .04em;
  line-height: 1;
}

.language-switch a {
  transition: background .2s ease, color .2s ease;
}

.language-switch a:hover {
  background: var(--highlight);
  color: var(--ink);
}

.language-switch [aria-current="page"] {
  background: var(--primary);
  color: var(--paper-strong);
}

.language-switch a:focus-visible {
  outline: 3px solid rgba(95, 159, 144, .42);
  outline-offset: 3px;
}

.main-nav .language-switch {
  margin-left: -8px;
}

.legal-header .nav-wrap {
  gap: 16px;
}

@media (max-width: 900px) and (min-width: 761px) {
  .main-nav {
    gap: 14px;
    font-size: .88rem;
  }

  .main-nav .button-small {
    padding-inline: 14px;
  }
}

@media (max-width: 760px) {
  .main-nav .language-switch {
    align-self: flex-start;
    margin: 8px 0 2px;
  }

  .main-nav .language-switch a,
  .main-nav .language-switch span {
    min-height: 34px;
    padding: 7px 11px;
  }
}

@media (max-width: 430px) {
  .legal-header .nav-wrap {
    gap: 8px;
  }

  .legal-header .brand img {
    width: 104px;
  }

  .legal-header .nav-actions {
    gap: 7px;
  }

  .legal-header .language-switch a,
  .legal-header .language-switch span {
    min-width: 30px;
    min-height: 28px;
    padding: 4px 6px;
    font-size: .7rem;
  }

  .legal-header .button-small {
    min-height: 36px;
    padding-inline: 10px;
    font-size: .82rem;
  }
}