/* A · Obsidian: dark, refined, hairline details taken from the SVE logo */
:root {
  --bg: #0a0b0d;
  --bg-2: #101215;
  --line: rgb(232 236 241 / 0.12);
  --line-strong: rgb(232 236 241 / 0.28);
  --text: #e8ecf1;
  --muted: #9aa3ad;
  --accent: #a9d2ec;          /* ice blue, sampled from the hero rim light */
  --accent-ink: #08131b;
  --radius: 14px;
  --display: "Fira Sans Condensed", "Arial Narrow", sans-serif;
  --sans: "Geist", system-ui, sans-serif;
  --mono: "Geist Mono", ui-monospace, monospace;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --z-nav: 40;
  --z-grain: 60;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 400 1rem/1.6 var(--sans);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }
::selection { background: var(--accent); color: var(--accent-ink); }

.wrap { width: min(1320px, 100% - 2rem); margin-inline: auto; }
@media (min-width: 768px) { .wrap { width: min(1320px, 100% - 4rem); } }

.skip { position: absolute; left: 1rem; top: -4rem; z-index: 100; background: var(--text); color: var(--bg); padding: .6rem 1rem; border-radius: 8px; }
.skip:focus { top: 1rem; }

.grain {
  position: fixed; inset: 0; z-index: var(--z-grain); pointer-events: none; opacity: .05;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: .55rem; white-space: nowrap;
  min-height: 44px; padding: 0 1.25rem; border-radius: 999px; border: 0; background: transparent;
  font: 500 .95rem/1 var(--sans); letter-spacing: .01em;
  transition: background .3s var(--ease), color .3s var(--ease), border-color .3s var(--ease), transform .2s var(--ease);
  cursor: pointer;
}
.btn:active { transform: scale(.98); }
.btn--primary { background: var(--text); color: var(--bg); }
.btn--primary:hover { background: var(--accent); color: var(--accent-ink); }
.btn--primary i { transition: transform .3s var(--ease); }
.btn--primary:hover i { transform: translate(2px, -2px); }
.btn--ghost { border: 1px solid var(--line-strong); }
.btn--ghost:hover { border-color: var(--text); }
.btn--text { padding-inline: .25rem; color: var(--muted); }
.btn--text:hover { color: var(--text); }
.btn--lg { min-height: 56px; padding: 0 1.75rem; font-size: 1.05rem; }

/* ---------- Nav ---------- */
.nav {
  position: fixed; inset: 0 0 auto; z-index: var(--z-nav);
  height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding-inline: max(1rem, calc((100% - 1320px) / 2));
  transition: background .4s var(--ease), border-color .4s var(--ease), transform .5s var(--ease);
  border-bottom: 1px solid transparent;
}
@media (min-width: 768px) { .nav { padding-inline: max(2rem, calc((100% - 1320px) / 2)); } }
.nav.is-scrolled { background: rgb(10 11 13 / .72); backdrop-filter: blur(14px) saturate(140%); -webkit-backdrop-filter: blur(14px) saturate(140%); border-color: var(--line); }
.nav.is-hidden { transform: translateY(-100%); }
.nav__logo img { width: 78px; height: auto; }
.nav__links { display: none; gap: 2rem; font-size: .92rem; color: var(--muted); }
.nav__links a { position: relative; padding-block: .5rem; transition: color .25s; }
.nav__links a::after { content: ""; position: absolute; left: 0; right: 0; bottom: .2rem; height: 1px; background: currentColor; transform: scaleX(0); transform-origin: right; transition: transform .4s var(--ease); }
.nav__links a:hover { color: var(--text); }
.nav__links a:hover::after { transform: scaleX(1); transform-origin: left; }
.nav__right { display: flex; align-items: center; gap: .75rem; }
.nav__cta { display: none; }
@media (min-width: 900px) { .nav__links, .nav__cta { display: flex; } }

/* language switch: sliding thumb */
.lang { position: relative; display: grid; grid-template-columns: 1fr 1fr; border: 1px solid var(--line-strong); border-radius: 999px; padding: 3px; }
.lang button { position: relative; z-index: 1; min-width: 40px; min-height: 36px; border: 0; background: none; font: 500 .75rem/1 var(--mono); letter-spacing: .08em; color: var(--muted); cursor: pointer; transition: color .3s var(--ease); }
.lang button.is-active { color: var(--bg); }
.lang__thumb { position: absolute; top: 3px; bottom: 3px; left: 3px; width: calc(50% - 3px); border-radius: 999px; background: var(--text); transition: transform .45s var(--ease); }
html[lang="de"] .lang__thumb { transform: translateX(100%); }

/* ---------- Hero ---------- */
.hero { position: relative; min-height: 100dvh; display: grid; align-content: end; padding-bottom: clamp(3rem, 8vh, 6rem); isolation: isolate; overflow: hidden; }
.hero__media { position: absolute; inset: 0; z-index: -1; }
.hero__media img { width: 100%; height: 100%; object-fit: cover; object-position: 70% 50%; transform: scale(1.08); }
.hero__field { position: absolute; inset: 0; width: 100%; height: 100%; mix-blend-mode: screen; }
.hero__shade { position: absolute; inset: 0; background:
  linear-gradient(90deg, rgb(10 11 13 / .92) 0%, rgb(10 11 13 / .55) 45%, rgb(10 11 13 / 0) 75%),
  linear-gradient(0deg, var(--bg) 0%, rgb(10 11 13 / 0) 40%); }
.hero__title {
  margin: 0; max-width: 13ch;
  font: 300 clamp(2.9rem, 7.4vw, 6.4rem)/0.98 var(--display);
  letter-spacing: -0.01em;
}
.hero__title .w { display: inline-block; overflow: hidden; vertical-align: top; padding-bottom: .06em; }
.hero__title .w > span { display: inline-block; }
.hero__sub { margin: 1.5rem 0 0; max-width: 42ch; color: var(--muted); font-size: clamp(1rem, 1.3vw, 1.15rem); }
.hero__ctas { margin-top: 2.25rem; display: flex; flex-wrap: wrap; align-items: center; gap: 1.25rem; }
.hero__rule { position: absolute; left: 0; right: 0; bottom: 0; height: 1px; }
.hero__rule span { display: block; height: 1px; background: var(--line-strong); transform-origin: left; }

@media (max-width: 767px) {
  .hero { align-content: end; padding-bottom: 2.5rem; }
  .hero__media img { object-position: 78% 40%; }
  .hero__shade { background: linear-gradient(0deg, var(--bg) 8%, rgb(10 11 13 / .7) 55%, rgb(10 11 13 / .25) 100%); }
}

/* ---------- Intro ---------- */
.intro { padding-block: clamp(6rem, 14vw, 11rem) clamp(4rem, 9vw, 7rem); }
.intro__lead { margin: 0; max-width: 26ch; font: 300 clamp(1.8rem, 3.6vw, 3.2rem)/1.15 var(--display); }
.intro__lead .w { opacity: .18; transition: opacity .2s linear; }
.intro__row { margin-top: clamp(3rem, 6vw, 5rem); padding-top: 2rem; border-top: 1px solid var(--line); display: grid; gap: 2rem; }
.intro__body { margin: 0; max-width: 52ch; color: var(--muted); font-size: 1.05rem; }
.intro__kw { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: .5rem; }
.intro__kw li { border: 1px solid var(--line-strong); border-radius: 999px; padding: .45rem .95rem; font: 400 .8rem/1 var(--mono); letter-spacing: .06em; color: var(--text); }
@media (min-width: 900px) { .intro__row { grid-template-columns: 1.2fr 1fr; align-items: start; } .intro__kw { justify-content: flex-end; } }

/* ---------- Expertise bento ---------- */
.exp { padding-block: clamp(3rem, 7vw, 6rem); }
.h2 { margin: 0 0 2.5rem; font: 300 clamp(2.2rem, 4.4vw, 3.8rem)/1 var(--display); }
.bento { display: grid; gap: 1rem; grid-template-columns: 1fr; }
@media (min-width: 900px) {
  .bento { grid-template-columns: 1.05fr 1fr; grid-template-rows: auto auto; gap: 1.25rem; }
  .card--tall { grid-row: span 2; }
}
.card {
  position: relative; overflow: hidden; border-radius: var(--radius);
  background: var(--bg-2); border: 1px solid var(--line);
  display: grid;
}
.card__body { position: relative; z-index: 1; padding: clamp(1.5rem, 2.6vw, 2.25rem); align-self: end; }
.card h3 { margin: 0 0 .6rem; font: 400 clamp(1.5rem, 2.2vw, 2rem)/1.1 var(--display); }
.card p { margin: 0; color: var(--muted); max-width: 44ch; }
.card__img { overflow: hidden; }
.card__img img { width: 100%; height: 100%; object-fit: cover; transition: transform 1.2s var(--ease); }
.card:hover .card__img img { transform: scale(1.04); }
.card--tall { grid-template-rows: 1fr auto; }
.card--tall .card__img { aspect-ratio: 4 / 3; }
@media (min-width: 900px) { .card--tall .card__img { aspect-ratio: auto; min-height: 380px; } }
.card--wide { grid-template-columns: 1fr; }
.card__img--side { aspect-ratio: 16 / 10; }
@media (min-width: 600px) {
  .card--wide { grid-template-columns: 1.25fr 1fr; min-height: 300px; }
  .card__img--side { aspect-ratio: auto; }
  .card--wide:last-child { grid-template-columns: 1fr 1.25fr; }
}
@media (max-width: 599px) { .card--wide:last-child .card__img { order: -1; } .card--wide:nth-child(2) .card__img { order: -1; } }

/* spotlight border (21st.dev "spotlight card" pattern, vanilla) */
.spot::before, .spot::after {
  content: ""; position: absolute; inset: 0; border-radius: inherit; pointer-events: none; opacity: 0; transition: opacity .4s var(--ease);
}
.spot::before { z-index: 2; padding: 1px; background: radial-gradient(260px circle at var(--mx, 50%) var(--my, 50%), rgb(169 210 236 / .9), transparent 70%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0); -webkit-mask-composite: xor; mask-composite: exclude; }
.spot::after { z-index: 0; background: radial-gradient(420px circle at var(--mx, 50%) var(--my, 50%), rgb(169 210 236 / .07), transparent 70%); }
.spot:hover::before, .spot:hover::after { opacity: 1; }

/* ---------- Closing ---------- */
.closing { position: relative; margin-top: clamp(4rem, 8vw, 7rem); min-height: 100dvh; display: grid; align-items: end; overflow: hidden; isolation: isolate; }
.closing__media { position: absolute; inset: 0; z-index: -1; clip-path: inset(12% 8% 12% 8% round 24px); }
.closing__media img { width: 100%; height: 100%; object-fit: cover; object-position: 50% 45%; }
.closing__media::after { content: ""; position: absolute; inset: 0; background: linear-gradient(0deg, var(--bg) 5%, rgb(10 11 13 / .2) 60%); }
.closing__text { padding-bottom: clamp(3rem, 9vh, 6rem); }
.closing__title { margin: 0; max-width: 16ch; font: 300 clamp(2.4rem, 5.6vw, 5rem)/1.02 var(--display); }
.closing__p { margin: 1.5rem 0 0; max-width: 50ch; color: var(--muted); font-size: 1.05rem; }
@media (max-width: 767px) { .closing { min-height: 80dvh; } .closing__media img { object-position: 35% 50%; } }

/* ---------- CTA ---------- */
.cta { padding-block: clamp(6rem, 14vw, 10rem); display: grid; gap: 2.5rem; justify-items: start; border-bottom: 1px solid var(--line); }
.cta__text { margin: 0; max-width: 18ch; font: 300 clamp(2.4rem, 6vw, 5.4rem)/1 var(--display); }

/* ---------- Footer ---------- */
.foot { padding-block: 3rem 2.5rem; display: grid; gap: 2rem; align-items: center; }
.foot img { width: 96px; }
.foot__links { display: flex; flex-wrap: wrap; gap: 1.5rem; color: var(--muted); font-size: .92rem; }
.foot__links a { min-height: 44px; display: inline-flex; align-items: center; }
.foot__links a:hover { color: var(--text); }
.foot__meta { margin: 0; display: flex; flex-wrap: wrap; gap: .25rem 1.5rem; color: var(--muted); font: 400 .78rem/1.6 var(--mono); }
@media (min-width: 900px) { .foot { grid-template-columns: auto 1fr auto; } .foot__links { justify-content: center; } }

/* ---------- Reveal defaults (JS adds .is-in) ---------- */
.js [data-reveal], .js [data-fade] { opacity: 0; transform: translateY(24px); }
.js .is-in { opacity: 1 !important; transform: none !important; transition: opacity 1s var(--ease), transform 1s var(--ease); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
  .js [data-reveal], .js [data-fade] { opacity: 1; transform: none; }
  .intro__lead .w { opacity: 1; }
  .hero__media img { transform: none; }
  .closing__media { clip-path: none; }
}

/* =====================================================================
   Site additions: mobile menu, sub-pages (contact, imprint), form
   ===================================================================== */

/* ---------- burger + mobile menu ---------- */
.burger { display: inline-grid; place-content: center; gap: 6px; width: 44px; height: 44px; border: 1px solid var(--line-strong); border-radius: 999px; background: none; cursor: pointer; }
.burger span { display: block; width: 16px; height: 1px; background: var(--text); transition: transform .4s var(--ease); }
.menu-open .burger span:first-child { transform: translateY(3.5px) rotate(45deg); }
.menu-open .burger span:last-child { transform: translateY(-3.5px) rotate(-45deg); }
@media (min-width: 900px) { .burger { display: none; } }
.menu { position: fixed; inset: 0; z-index: calc(var(--z-nav) - 1); background: rgb(10 11 13 / .96); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); display: grid; align-content: center; padding: 6rem 1.5rem 3rem; opacity: 0; transition: opacity .35s var(--ease); }
.menu[hidden] { display: none; }
.menu-open .menu { opacity: 1; }
.menu__links { display: grid; gap: .25rem; }
.menu__links a { font: 300 clamp(2.4rem, 11vw, 3.4rem)/1.15 var(--display); padding-block: .2rem; border-bottom: 1px solid var(--line); transform: translateY(16px); opacity: 0; transition: transform .6s var(--ease), opacity .6s var(--ease), color .2s; }
.menu-open .menu__links a { transform: none; opacity: 1; }
.menu-open .menu__links a:nth-child(2) { transition-delay: .05s; }
.menu-open .menu__links a:nth-child(3) { transition-delay: .1s; }
.menu-open .menu__links a:nth-child(4) { transition-delay: .15s; }
.menu__links a:hover, .menu__links a[aria-current="page"] { color: var(--accent); }
.menu-open { overflow: hidden; }
.menu-open .nav { background: transparent; border-color: transparent; backdrop-filter: none; -webkit-backdrop-filter: none; }

/* ---------- sub-page hero ---------- */
.page { position: relative; padding-top: calc(72px + clamp(3rem, 8vw, 6rem)); padding-bottom: clamp(4rem, 9vw, 7rem); isolation: isolate; }
.page__field { position: absolute; inset: 0 0 auto; height: min(70vh, 640px); z-index: -1; -webkit-mask-image: linear-gradient(180deg, #000 30%, transparent); mask-image: linear-gradient(180deg, #000 30%, transparent); }
.page__field canvas { width: 100%; height: 100%; display: block; }
.page__title { margin: 0; max-width: 14ch; font: 300 clamp(2.8rem, 6.4vw, 5.6rem)/0.98 var(--display); }
.page__title .w { display: inline-block; overflow: hidden; vertical-align: top; padding-bottom: .06em; }
.page__title .w > span { display: inline-block; }
.page__lead { margin: 1.75rem 0 0; max-width: 46ch; color: var(--muted); font-size: clamp(1.05rem, 1.4vw, 1.2rem); }

/* ---------- contact layout ---------- */
.contact { display: grid; gap: clamp(3rem, 6vw, 5rem); }
@media (min-width: 1000px) { .contact { grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); align-items: start; } .contact__aside { position: sticky; top: 110px; } }
.direct { margin: clamp(2.5rem, 5vw, 4rem) 0 0; list-style: none; display: grid; gap: 1.25rem; border-top: 1px solid var(--line); padding: 2rem 0 0; }
.direct li { display: grid; grid-template-columns: 44px 1fr; gap: 1rem; align-items: center; }
.direct i { width: 44px; height: 44px; display: grid; place-items: center; border: 1px solid var(--line-strong); border-radius: 999px; font-size: 1.15rem; color: var(--accent); }
.direct .k { display: block; font: 400 .72rem/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--muted); margin-bottom: .35rem; }
.direct .v { color: var(--text); }
.direct a.v:hover { color: var(--accent); }
.ph-slot { color: var(--muted); font-style: italic; }

/* ---------- form ---------- */
.form-card { position: relative; border: 1px solid var(--line); border-radius: var(--radius); background: var(--bg-2); padding: clamp(1.5rem, 3.5vw, 2.75rem); }
.form-card::before { content: ""; position: absolute; inset: -1px; border-radius: inherit; padding: 1px; pointer-events: none; background: radial-gradient(420px circle at var(--mx, 85%) var(--my, 0%), rgb(169 210 236 / .55), transparent 70%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0); -webkit-mask-composite: xor; mask-composite: exclude; }
.form { display: grid; gap: 1.5rem; }
.form[hidden] { display: none; }
.form__row { display: grid; gap: 1.5rem; }
@media (min-width: 640px) { .form__row { grid-template-columns: 1fr 1fr; } }
.field { display: grid; gap: .5rem; align-content: start; }
.field label, .field legend { font: 500 .9rem/1.3 var(--sans); color: var(--text); padding: 0; }
.req { color: var(--accent); margin-left: .15rem; }
.input { width: 100%; min-height: 52px; padding: .85rem 1rem; border-radius: 10px; border: 1px solid var(--line-strong); background: var(--bg); color: var(--text); font: 400 1rem/1.4 var(--sans); transition: border-color .2s var(--ease), box-shadow .2s var(--ease); }
.input::placeholder { color: #737c87; }
.input:hover { border-color: rgb(232 236 241 / .45); }
.input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgb(169 210 236 / .2); }
textarea.input { min-height: 160px; resize: vertical; }
.help { margin: 0; font-size: .82rem; color: var(--muted); }
.err { margin: 0; font-size: .85rem; color: #ff9b9b; display: none; align-items: center; gap: .4rem; }
.field.is-invalid .input { border-color: #ff9b9b; }
.field.is-invalid .input:focus { box-shadow: 0 0 0 3px rgb(255 155 155 / .2); }
.field.is-invalid .err { display: flex; }

fieldset.field { border: 0; margin: 0; padding: 0; min-width: 0; }
.chips { display: flex; flex-wrap: wrap; gap: .5rem; margin-top: .25rem; }
.chip { position: relative; }
.chip input { position: absolute; opacity: 0; inset: 0; margin: 0; cursor: pointer; }
.chip span { display: inline-flex; align-items: center; min-height: 44px; padding: 0 1rem; border: 1px solid var(--line-strong); border-radius: 999px; font-size: .9rem; color: var(--muted); transition: background .25s var(--ease), color .25s var(--ease), border-color .25s var(--ease); }
.chip input:hover + span { color: var(--text); border-color: rgb(232 236 241 / .45); }
.chip input:checked + span { background: var(--text); border-color: var(--text); color: var(--bg); }
.chip input:focus-visible + span { outline: 2px solid var(--accent); outline-offset: 2px; }

.check { display: grid; grid-template-columns: 22px 1fr; gap: .85rem; align-items: start; font-size: .9rem; color: var(--muted); cursor: pointer; }
.check input { appearance: none; -webkit-appearance: none; width: 22px; height: 22px; margin: 1px 0 0; border: 1px solid var(--line-strong); border-radius: 6px; background: var(--bg); display: grid; place-content: center; cursor: pointer; transition: background .2s, border-color .2s; }
.check input::after { content: ""; width: 10px; height: 6px; border: solid var(--bg); border-width: 0 0 2px 2px; transform: rotate(-45deg) scale(0); transition: transform .2s var(--ease); margin-top: -2px; }
.check input:checked { background: var(--accent); border-color: var(--accent); }
.check input:checked::after { transform: rotate(-45deg) scale(1); }
.check a { color: var(--text); text-decoration: underline; text-underline-offset: 3px; }
.field.is-invalid .check input { border-color: #ff9b9b; }

.form__foot { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 1rem; padding-top: .5rem; }
.form__note { margin: 0; font-size: .82rem; color: var(--muted); }
.form__alert { margin: 0; padding: .9rem 1rem; border-radius: 10px; border: 1px solid rgb(255 155 155 / .4); background: rgb(255 155 155 / .08); color: #ffc9c9; font-size: .9rem; }
.form__alert[hidden] { display: none; }
.btn[aria-busy="true"] { pointer-events: none; opacity: .85; }
.btn .dots { display: none; gap: 3px; }
.btn[aria-busy="true"] .dots { display: inline-flex; }
.btn[aria-busy="true"] i { display: none; }
.dots b { width: 4px; height: 4px; border-radius: 50%; background: currentColor; animation: dot 1s infinite ease-in-out; }
.dots b:nth-child(2) { animation-delay: .15s; }
.dots b:nth-child(3) { animation-delay: .3s; }
@keyframes dot { 0%, 100% { opacity: .25; transform: translateY(0); } 50% { opacity: 1; transform: translateY(-3px); } }

.success { display: grid; justify-items: start; gap: 1rem; padding-block: 2rem; }
.success[hidden] { display: none; }
.success__icon { width: 64px; height: 64px; }
.success__icon circle { stroke: var(--accent); stroke-dasharray: 176; stroke-dashoffset: 176; animation: draw .9s var(--ease) forwards; }
.success__icon path { stroke: var(--accent); stroke-dasharray: 40; stroke-dashoffset: 40; animation: draw .5s .6s var(--ease) forwards; }
@keyframes draw { to { stroke-dashoffset: 0; } }
.success h2 { margin: 0; font: 300 clamp(2rem, 4vw, 3rem)/1 var(--display); }
.success p { margin: 0; color: var(--muted); max-width: 42ch; }

/* ---------- imprint ---------- */
.legal { max-width: 860px; }
.legal__note { display: inline-flex; margin: 2rem 0 0; padding: .55rem .9rem; border: 1px dashed var(--line-strong); border-radius: 8px; font: 400 .8rem/1.3 var(--mono); color: var(--muted); }
.legal__body { margin-top: clamp(2.5rem, 5vw, 4rem); }
.legal__body section { display: grid; gap: .5rem; padding-block: 1.5rem; border-top: 1px solid var(--line); }
@media (min-width: 768px) { .legal__body section { grid-template-columns: 220px 1fr; gap: 2rem; } }
.legal__body h2 { margin: 0; font: 400 .78rem/1.6 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.legal__body p { margin: 0; }
.legal__body p + p { margin-top: .75rem; }
.legal__body a { text-decoration: underline; text-underline-offset: 3px; }
.legal__body a:hover { color: var(--accent); }
[data-lang-block] { display: none; }
html[lang="en"] [data-lang-block="en"], html[lang="de"] [data-lang-block="de"] { display: block; }

.nav__links a[aria-current="page"], .foot__links a[aria-current="page"] { color: var(--text); }

/* ---------- back to top (ring shows scroll progress) ---------- */
.totop {
  position: fixed; z-index: 30;
  right: max(1rem, env(safe-area-inset-right)); bottom: max(1rem, env(safe-area-inset-bottom));
  width: 48px; height: 48px; border-radius: 999px; border: 0; padding: 0;
  display: grid; place-items: center; cursor: pointer; color: var(--text);
  background: rgb(16 18 21 / .72); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  box-shadow: inset 0 0 0 1px var(--line-strong), 0 10px 30px rgb(0 0 0 / .35);
  opacity: 0; transform: translateY(12px) scale(.9); pointer-events: none;
  transition: opacity .4s var(--ease), transform .4s var(--ease), background .25s var(--ease), color .25s var(--ease);
}
.totop.is-visible { opacity: 1; transform: none; pointer-events: auto; }
.totop i { font-size: 1.1rem; transition: transform .3s var(--ease); }
.totop:hover { background: var(--text); color: var(--bg); }
.totop:hover i { transform: translateY(-2px); }
.totop:active { transform: scale(.95); }
.totop__ring { position: absolute; inset: 0; width: 100%; height: 100%; transform: rotate(-90deg); pointer-events: none; }
.totop__ring circle { fill: none; stroke: var(--accent); stroke-width: 1.5; stroke-dasharray: 100; stroke-dashoffset: var(--p, 100); stroke-linecap: round; }
@media (min-width: 768px) { .totop { right: 2rem; bottom: 2rem; width: 52px; height: 52px; } }
.menu-open .totop { opacity: 0; pointer-events: none; }

@media (prefers-reduced-motion: reduce) {
  .success__icon circle, .success__icon path { stroke-dashoffset: 0; animation: none; }
  .menu__links a { transform: none; opacity: 1; }
}