:root {
  color-scheme: light;
  --bg: #f8f6f4;
  --surface: #fdfbfa;
  --surface-2: #f1eeeb;
  --text: #0b2038;
  --muted: #425266;
  --accent: #006d70;
  --accent-soft: #e2edeb;
  --border: #e3dedb;
  --line: #ded9d5;
  --field-border: #8394a5;
  --button-text: #fff;
  --button-fill: linear-gradient(171deg, #137783, #073e50 78%);
  --button-hover: #063b49;
  --error: #9f252e;
  --contact-bg: #eef4f7;
  --contact-form: #f8fbfd;
  --contact-field: #f5f8fa;
  --shadow: 0 16px 36px -22px #26394b44;
  --card-shadow: 0 12px 24px -18px #4a34284d;
  --sans: "Work Sans", system-ui, sans-serif;
  --serif: "Source Serif 4", Georgia, serif;
  --radius-lg: 28px;
  --radius-md: 16px;
  --gutter: clamp(20px, 6.2vw, 80px);
  --header-height: 64px;
  --header-logo-size: 62px;
}

html[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0b1825;
  --surface: #122333;
  --surface-2: #192d3e;
  --text: #eff5fa;
  --muted: #b8c8d8;
  --accent: #76dcd2;
  --accent-soft: #19373c;
  --border: #2b4052;
  --line: #32485b;
  --field-border: #6c859a;
  --button-text: #09272c;
  --button-fill: linear-gradient(171deg, #a4ebe0, #6acfc6 80%);
  --button-hover: #a8e9df;
  --error: #ffafb5;
  --contact-bg: #112635;
  --contact-form: #182e3e;
  --contact-field: #112534;
  --shadow: 0 16px 36px -22px #0009;
  --card-shadow: 0 12px 24px -18px #0009;
}

*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-height) + 16px); }
body { margin: 0; font: 1rem/1.5 var(--sans); color: var(--text); background: var(--bg); }
.page { min-height: 100vh; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
a:hover { color: var(--accent); }
button, input, textarea, select { font: inherit; }
button, summary { cursor: pointer; }
:where(a, button, input, textarea, select, summary, [tabindex]):focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
}
p { margin: 0; }
h1, h2, h3 { margin: 0; }
h1, h2 { font-family: var(--serif); line-height: 1.04; letter-spacing: -.04em; text-wrap: balance; }
h2 { font-size: clamp(1.95rem, 3.35vw, 2.65rem); font-weight: 600; }
.icon { display: block; width: 1.25em; height: 1.25em; flex: none; fill: none; stroke: currentColor; stroke-width: 1.65; stroke-linecap: round; stroke-linejoin: round; }
.accent { color: var(--accent); }
.muted { color: var(--muted); }
.sr-only, .skip-link:not(:focus) {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}
.skip-link {
  position: fixed;
  top: 8px;
  left: 12px;
  z-index: 20;
  padding: .6rem 1rem;
  background: var(--surface);
  border-radius: 999px;
}
.container { width: min(1180px, calc(100% - 2 * var(--gutter))); margin-inline: auto; }

.site-header {
  position: sticky;
  z-index: 10;
  top: 0;
  background: var(--bg);
  background: color-mix(in srgb, var(--bg) 94%, transparent);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(16px);
}
.header-inner { min-height: calc(var(--header-height) - 1px); display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 1rem; }
.brand { display: inline-grid; place-items: center; width: 48px; height: 48px; border-radius: 7px; }
.brand-mark { object-fit: contain; }
.header-inner .brand { width: var(--header-logo-size); height: var(--header-logo-size); }
.header-inner .brand-mark { width: 100%; height: auto; }
.main-nav, .header-actions { display: flex; align-items: center; }
.main-nav { gap: clamp(1.25rem, 3.5vw, 3.25rem); font-weight: 500; font-size: .94rem; }
.main-nav a { display: flex; align-items: center; min-height: 44px; }
.main-nav a:hover { text-decoration: underline; text-underline-offset: .3em; }
.header-actions { justify-self: end; gap: clamp(.5rem, 1.5vw, 1.125rem); }
.lang-switch { display: inline-flex; align-items: stretch; border-radius: 999px; border: 1px solid var(--border); font-size: .76rem; font-weight: 600; }
.lang-label { display: grid; place-items: center; min-height: 32px; min-width: 40px; border-radius: 999px; }
.lang-switch.is-de .lang-label:first-child, .lang-switch.is-en .lang-label:last-child { background: var(--button-fill); color: var(--button-text); }
.theme-toggle, .menu-toggle {
  display: inline-grid;
  place-items: center;
  width: 40px;
  height: 40px;
  padding: 0;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 50%;
  box-shadow: var(--card-shadow);
}
.theme-toggle:hover, .menu-toggle:hover { color: var(--accent); border-color: var(--accent); }
.theme-toggle .icon { grid-area: 1 / 1; }
.theme-toggle .icon-moon, [data-theme="dark"] .theme-toggle .icon-sun, .menu-toggle, .mobile-nav, .menu-toggle .icon-close { display: none; }
[data-theme="dark"] .theme-toggle .icon-moon { display: block; }
.site-header.is-menu-open .menu-toggle .icon-menu { display: none; }
.site-header.is-menu-open .menu-toggle .icon-close { display: block; }

.eyebrow {
  margin: 0 0 .9rem;
  color: var(--text);
  font: 700 .73rem/1.4 var(--sans);
  letter-spacing: .17em;
  text-transform: uppercase;
}
.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, .38fr) minmax(0, .62fr);
  align-items: center;
  padding-inline-start: max(var(--gutter), calc((100% - 1180px) / 2));
}
.hero-copy {
  padding-block: clamp(2rem, 3.4vw, 3.5rem);
  padding-inline-end: 1.25rem;
}
.hero h1 {
  font-size: clamp(2.3rem, 4.3vw, 3.5rem);
  font-weight: 600;
  letter-spacing: -.045em;
  line-height: 1.04;
}
.hero-lead {
  margin-top: .5rem;
  font: 400 clamp(1.05rem, 1.6vw, 1.28rem)/1.35 var(--serif);
  color: var(--muted);
  text-wrap: pretty;
}
.hero-actions, .not-found-actions { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: clamp(1.2rem, 2.35vw, 1.8rem); }
.hero-actions { margin-top: 1.25rem; }
.cta, .ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .65rem;
  min-height: 46px;
  padding: .6rem clamp(1rem, 2.35vw, 1.8rem);
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: .93rem;
  line-height: 1.3;
  font-weight: 600;
  text-align: center;
}
.cta { background: var(--button-fill); color: var(--button-text); }
.cta:hover { background: var(--button-hover); color: var(--button-text); }
.cta:disabled { cursor: not-allowed; opacity: .64; }
.ghost { background: var(--surface); color: var(--text); border-color: var(--field-border); }
.ghost:hover { color: var(--accent); border-color: var(--accent); }
.hero-visual {
  position: relative;
  align-self: stretch;
  min-height: clamp(235px, 24.5vw, 345px);
  clip-path: url("#hero-outline");
}
.hero-visual img, .hero-glass {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}
.hero-visual img {
  object-fit: cover;
  object-position: center 55%;
  filter: saturate(1.2) contrast(1.035);
}
.hero-glass { pointer-events: none; }
.hero-glass-side { fill: var(--bg); opacity: .36; }
.hero-glass-top { fill: #deedf6; opacity: .66; }
[data-theme="dark"] .hero-visual img { filter: brightness(.9) saturate(1.12); }
[data-theme="dark"] .hero-glass-side { fill: #b6cbd7; opacity: .24; }
[data-theme="dark"] .hero-glass-top { fill: #8daebf; opacity: .31; }

.section { margin-top: clamp(2rem, 3.4vw, 3.25rem); }
.section-head { margin-bottom: 1rem; }
.about { display: grid; grid-template-columns: 1.26fr .94fr; gap: clamp(2rem, 6vw, 5rem); align-items: start; }
.about-copy h2 { text-wrap: pretty; }
.profile-prose { max-width: 59ch; }
.profile-prose p { margin-top: .9rem; }
.about-portrait { position: relative; isolation: isolate; margin: 1.45rem 1.9rem .75rem .55rem; }
.about-portrait::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 16% -8% -10% -6%;
  border-radius: 2.2rem;
  transform: skewX(-16deg);
  background: linear-gradient(145deg, var(--surface), var(--accent-soft) 65%, color-mix(in srgb, var(--accent) 23%, var(--bg)));
}
.about-portrait img { width: 100%; height: auto; aspect-ratio: 1.72; object-fit: cover; object-position: 50% 39%; border-radius: 1.35rem; }
.bio-details[open] { display: flex; flex-direction: column; }
.bio-details summary { display: flex; align-items: center; gap: .5rem; width: fit-content; min-height: 32px; font-weight: 600; color: var(--accent); list-style: none; }
summary::-webkit-details-marker { display: none; }
.bio-details summary:hover { text-decoration: underline; text-underline-offset: .2em; }
.bio-details summary { margin-top: .5rem; font-size: .89rem; }
.bio-details[open] summary { order: 1; }
.bio-details[open] summary .icon { rotate: 180deg; }
.bio-details:not([open]) .when-open,
.bio-details[open] .when-closed { display: none; }

.tech { position: relative; }
.tech-header {
  display: flex;
  flex-wrap: wrap;
  align-items: end;
  justify-content: space-between;
  gap: .6rem 1.25rem;
  margin-bottom: 1rem;
}
.tech-header h2 { text-wrap: wrap; }
.tech-controls { display: flex; gap: .4rem; margin-inline-start: auto; }
.tech-control {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  padding: 0;
  color: var(--accent);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 50%;
}
.tech-control:hover { background: var(--accent-soft); border-color: var(--accent); }
.tech-control[aria-disabled="true"] { opacity: .45; cursor: default; }
.tech-rotation { margin-inline-end: .25rem; background: var(--accent-soft); }
.tech-prev .icon { rotate: 180deg; }
.tech-rotation:not([data-playing]) .tech-pause,
.tech-rotation[data-playing] .tech-play { display: none; }
.tech-grid {
  --tech-columns: 8;
  --tech-gap: clamp(.5rem, 1vw, .8rem);
  display: grid;
  grid-template-columns: repeat(var(--tech-columns), minmax(0, 1fr));
  gap: var(--tech-gap);
  margin: 0;
  padding: 0;
  list-style: none;
}
.tech.is-slider .tech-viewport {
  overflow-x: auto;
  overscroll-behavior-inline: contain;
  scrollbar-width: none;
  padding-bottom: .6rem;
}
.tech.is-slider .tech-viewport::-webkit-scrollbar { display: none; }
.tech.is-slider .tech-grid {
  grid-template-columns: none;
  grid-auto-flow: column;
  grid-auto-columns: calc((100% - (var(--tech-columns) - 1) * var(--tech-gap)) / var(--tech-columns));
}
.tech-card {
  display: grid;
  place-items: center;
  align-content: center;
  gap: .25rem;
  min-height: 96px;
  padding: .65rem .25rem;
  text-align: center;
  overflow-wrap: anywhere;
  font-size: .86rem;
  line-height: 1.2;
  font-weight: 500;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--card-shadow);
}
.tech-icon { display: flex; align-items: center; justify-content: center; width: min(100%, 78px); height: 48px; overflow: hidden; border-radius: 10px; }
.tech-icon img { flex: none; width: 93px; height: 44px; max-width: none; object-fit: contain; }
[data-theme="dark"] .tech-icon { background: #e3eaee; }
.skills, .resume { border-top: 1px solid var(--border); padding-top: 1.1rem; }
.skills { padding-top: clamp(1.5rem, 2.5vw, 2.1rem); }
.skills-layout { display: grid; grid-template-columns: 1fr 1fr; align-items: start; }
.skills-copy { padding-right: clamp(1.5rem, 4vw, 3.6rem); }
.skills-copy h2 { font-size: clamp(1.72rem, 2.6vw, 2.2rem); text-wrap: pretty; }
.skills-copy .profile-prose { margin-top: clamp(1.2rem, 2vw, 1.5rem); }
.skills-copy .profile-prose p { margin-top: 0; }
.skills-copy .bio-details[open],
.skills-copy .bio-details p + p { margin-top: 1.25rem; }
.skills-copy .bio-details summary { margin-top: .75rem; }
.skills-copy .bio-details[open] summary { margin-top: 1rem; }
.skill-stats, .skill-meters { padding: 0; margin: 0; list-style: none; }
.skill-stats { display: flex; flex-wrap: wrap; gap: 1rem clamp(.8rem, 2.3vw, 2rem); margin-top: 1.5rem; }
.skill-stats li { display: flex; align-items: start; gap: .55rem; font-size: .88rem; line-height: 1.25; }
.skill-stats li .icon, .skill-meters li > .icon { width: 1.65rem; height: 1.65rem; color: var(--accent); }
.skill-stats small { display: block; margin-top: .2rem; font-size: .81rem; color: var(--muted); }
.skill-meters { display: grid; gap: 1.05rem; margin-top: clamp(1rem, 2.4vw, 2.2rem); border-left: 1px solid var(--line); padding: .15rem 0 .15rem clamp(1.5rem, 4vw, 3.5rem); }
.skill-meters li { display: grid; grid-template-columns: auto 1fr; align-items: center; gap: clamp(.7rem, 2vw, 1.5rem); }
.skill-meter { display: grid; grid-template-columns: 1fr auto; gap: .35rem .5rem; font-size: .91rem; font-weight: 500; }
.skill-meter > span:nth-child(2) { font-variant-numeric: tabular-nums; }
.skill-bar { grid-column: 1 / -1; height: .48rem; background: var(--line); border-radius: 999px; overflow: hidden; }
.skill-bar span { display: block; height: 100%; border-radius: inherit; background: linear-gradient(90deg, #0e8382, #075966); }
[data-theme="dark"] .skill-bar span { background: linear-gradient(90deg, #2c9c9c, #76dcd2); }

.timeline {
  --timeline-gap: .5rem;
  --timeline-marker-x: .9rem;
  --timeline-marker-y: 50%;
  display: grid;
  gap: var(--timeline-gap);
  margin: 0;
  padding: 0;
  list-style: none;
}
.timeline-item { position: relative; display: grid; grid-template-columns: minmax(145px, 22%) minmax(0, 1fr); align-items: stretch; }
.timeline-item::before {
  content: "";
  position: absolute;
  inset: calc(-1 * var(--timeline-gap)) auto 0 var(--timeline-marker-x);
  width: 1px;
  transform: translateX(-50%);
  background: var(--accent);
  pointer-events: none;
}
.timeline-item:first-child::before { top: var(--timeline-marker-y); }
.timeline-item:last-child::before { bottom: calc(100% - var(--timeline-marker-y)); }
.timeline-time { display: grid; align-content: center; gap: .1rem; padding: .65rem .5rem .65rem 2.9rem; line-height: 1.25; font-size: .88rem; }
.timeline-time span { font-size: .82rem; color: var(--muted); }
.timeline-time::before {
  content: "";
  position: absolute;
  top: var(--timeline-marker-y);
  left: var(--timeline-marker-x);
  width: .72rem;
  height: .72rem;
  transform: translate(-50%, -50%);
  border: 1.5px solid var(--accent);
  border-radius: 50%;
  background: var(--bg);
}
.timeline-item.is-active .timeline-time::before { width: 1.1rem; height: 1.1rem; background: var(--accent); box-shadow: inset 0 0 0 3px var(--bg); }
.timeline-card {
  display: grid;
  grid-template-columns: clamp(3rem, 7vw, 5.5rem) minmax(0, 1fr) auto;
  align-items: stretch;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface);
  box-shadow: var(--card-shadow);
  transition: background-color .18s ease, border-color .18s ease;
}
.timeline-item.is-active .timeline-card { background: var(--accent-soft); border-color: color-mix(in srgb, var(--accent) 25%, var(--border)); }
.timeline-icon { display: grid; place-items: center; border-right: 1px solid var(--border); background: color-mix(in srgb, var(--surface-2) 40%, transparent); }
.timeline-icon .icon { width: 1.7rem; height: 1.7rem; }
.timeline-item.is-active :is(.timeline-icon, h3) { color: var(--accent); }
.timeline-copy { min-width: 0; padding: .7rem 1rem; font-size: .85rem; line-height: 1.3; color: var(--muted); }
.timeline-company { font-size: .81rem; font-weight: 600; color: var(--text); }
.timeline-copy h3 { font-size: 1.02rem; color: var(--text); }
.timeline-logo {
  display: block;
  align-self: center;
  width: clamp(5.5rem, 11vw, 8rem);
  height: 3.25rem;
  margin: .45rem .8rem .45rem 0;
  padding: .25rem .45rem;
  border-radius: .5rem;
  background: #fff;
}
.timeline-logo img { width: 100%; height: 100%; object-fit: contain; }

.contact-section { width: min(1220px, calc(100% - max(32px, 2 * var(--gutter) - 40px))); }
.contact-panel {
  position: relative;
  isolation: isolate;
  overflow: clip;
  padding: clamp(1.35rem, 3vw, 2.25rem) clamp(1.35rem, 4.3vw, 3.5rem);
  border: 1px solid #285b63;
  border-radius: var(--radius-lg);
  background: #174e59;
  color: #fff;
}
.contact-panel::before, .contact-panel::after { content: ""; position: absolute; inset: 0; z-index: -1; pointer-events: none; }
.contact-panel::before {
  background: linear-gradient(105deg, #16434d 4%, #154b55 39%, #205c63b3 63%, #132c3a19 100%), url("/assets/Potsdam-1600.jpg") 85% 54% / cover;
}
.contact-panel::after { background: #d2f2ec24; clip-path: polygon(78% 0, 84% 0, 65% 100%, 59% 100%); }
.contact-copy { position: relative; }
.contact-panel h2 { font-size: clamp(2.1rem, 4.1vw, 3.35rem); text-wrap: wrap; }
.contact-intro { margin-top: .55rem; }
.contact-section:not(.is-open) .contact-eyebrow { display: none; }
.contact-section:not(.is-open) .contact-copy .accent { color: inherit; }
.contact-section:not(.is-open) .contact-toggle { margin-top: .85rem; background: #f8f6f4; color: #0b2038; }
.contact-section:not(.is-open) .contact-toggle:hover { background: #dceeed; }
.contact-toggle-open, .contact-toggle-close { display: inline-flex; align-items: center; gap: .65rem; }
.contact-toggle-close, .is-open .contact-toggle-open { display: none; }
.contact-toggle:focus-visible { outline-color: #fff; }

.contact-section.is-open .contact-panel {
  display: grid;
  grid-template-columns: minmax(0, .85fr) minmax(0, 1.35fr);
  grid-template-rows: auto 1fr;
  gap: 1.7rem clamp(1.5rem, 4vw, 3.5rem);
  align-items: start;
  padding: clamp(2.2rem, 5.3vw, 4.7rem) clamp(1.25rem, 3.9vw, 3.3rem);
  background: var(--contact-bg);
  border-color: var(--border);
  color: var(--text);
  box-shadow: var(--shadow);
}
.is-open .contact-panel::before {
  inset: -23% -17% auto auto;
  width: 73%;
  height: 112%;
  border-radius: 53% 29% 64% 38%;
  transform: rotate(-24deg);
  background: linear-gradient(145deg, transparent 16%, color-mix(in srgb, var(--accent) 17%, transparent), transparent);
}
.is-open .contact-panel::after {
  inset: auto auto -2% -2%;
  width: 44%;
  height: min(25%, 174px);
  background: url("/assets/potsdam-line.svg") left bottom / contain no-repeat;
  clip-path: none;
  opacity: .43;
}
[data-theme="dark"] .is-open .contact-panel::after { opacity: .28; }
.is-open .contact-copy { grid-column: 1; grid-row: 1; }
.is-open .contact-copy h2 { font-family: var(--sans); font-weight: 700; letter-spacing: -.065em; line-height: 1; font-size: clamp(2.5rem, 5.1vw, 4.15rem); text-wrap: balance; }
.is-open .contact-copy h2 .accent { display: block; }
.is-open .contact-intro { margin-top: 1.25rem; max-width: 31ch; font-size: clamp(1.05rem, 1.7vw, 1.24rem); line-height: 1.44; color: var(--muted); }
.contact-eyebrow { display: flex; align-items: center; gap: .65rem; margin-bottom: 1.1rem; }
.contact-eyebrow::before { content: ""; width: .57rem; height: .57rem; border-radius: 50%; background: var(--accent); }
.is-open .contact-toggle {
  position: absolute;
  z-index: 1;
  top: .7rem;
  right: .7rem;
  width: 42px;
  min-height: 42px;
  padding: 0;
  color: var(--text);
  background: var(--contact-form);
  border-color: var(--border);
}
.is-open .contact-toggle:hover { color: var(--accent); border-color: var(--accent); }
.is-open .contact-toggle:focus-visible { outline-color: var(--accent); }
.is-open .contact-toggle-close { display: inline-flex; }
.is-open .contact-details { display: contents; }
.contact-reasons {
  grid-row: 2;
  grid-column: 1;
  display: grid;
  gap: 1.25rem;
  padding: 0;
  margin: 0;
  list-style: none;
}
.contact-reasons li { display: grid; grid-template-columns: auto 1fr; align-items: start; gap: .9rem; }
.contact-reason-icon {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border: 1px solid color-mix(in srgb, var(--accent) 20%, var(--border));
  border-radius: 13px;
  background: var(--accent-soft);
  color: var(--accent);
  box-shadow: var(--card-shadow);
}
.contact-reason-icon .icon { width: 1.4rem; height: 1.4rem; }
.contact-reasons strong { font-size: .98rem; }
.contact-reasons p { font-size: .88rem; color: var(--muted); }
.contact-form {
  grid-column: 2;
  grid-row: 1 / 3;
  min-width: 0;
  margin-top: .75rem;
  padding: clamp(1rem, 2.8vw, 2.35rem);
  border: 1px solid var(--border);
  border-radius: clamp(1rem, 2vw, 1.5rem);
  background: var(--contact-form);
  box-shadow: var(--shadow);
}
.contact-fields { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.05rem .85rem; }
.contact-field--wide { grid-column: 1 / -1; }
.contact-field label { display: block; margin-bottom: .34rem; font-weight: 600; font-size: .93rem; }
.contact-control { position: relative; }
.contact-control > .icon { position: absolute; top: 1rem; left: .85rem; color: var(--muted); pointer-events: none; }
.contact-control--select > .icon { left: auto; right: .85rem; }
.contact-control :is(input, select, textarea) {
  display: block;
  width: 100%;
  min-height: 49px;
  padding: .7rem .85rem .7rem 2.6rem;
  border: 1px solid var(--field-border);
  border-radius: 11px;
  color: var(--text);
  background: var(--contact-field);
  box-shadow: 0 3px 7px -5px #24394955;
  line-height: 1.35;
}
.contact-control :is(input, textarea)::placeholder { opacity: 1; color: var(--muted); }
.contact-control select { appearance: none; padding-inline: .95rem 2.6rem; cursor: pointer; }
.contact-control select:invalid { color: var(--muted); }
.contact-control textarea { resize: vertical; min-height: 125px; }
.contact-control [aria-invalid="true"] { border-color: var(--error); }
.message-meta { display: flex; justify-content: space-between; align-items: start; gap: .5rem; margin-top: .3rem; }
.field-hint, .char-counter, .field-error, .contact-status, .contact-privacy { font-size: .81rem; color: var(--muted); }
.char-counter { white-space: nowrap; font-variant-numeric: tabular-nums; }
.char-counter.is-invalid, .field-error, .contact-status.is-error { color: var(--error); }
.field-error { margin-top: .35rem; }
.contact-status:not(:empty) { margin-top: .65rem; }
.contact-status.is-success { color: var(--accent); }
.contact-submit { width: 100%; margin-top: 1.15rem; min-height: 49px; border-radius: 13px; }
.contact-privacy { display: flex; gap: .55rem; align-items: start; margin-top: 1rem; }
.contact-privacy .icon { margin-top: .15em; }
.contact-privacy a, .legal-content a:not(.cta):not(.ghost) { color: var(--accent); text-decoration: underline; text-underline-offset: .15em; }
[data-turnstile-site-key] { max-width: 100%; }
[data-turnstile-site-key]:not(:empty) { margin-top: .5rem; }
.toast {
  position: fixed;
  z-index: 20;
  bottom: 1rem;
  left: 50%;
  width: max-content;
  max-width: calc(100% - 2rem);
  transform: translate(-50%, .5rem);
  opacity: 0;
  pointer-events: none;
  padding: .65rem 1rem;
  border-radius: 12px;
  background: #0a6463;
  color: #fff;
  box-shadow: var(--shadow);
  transition: opacity .2s, transform .2s;
}
.toast.is-visible { opacity: 1; transform: translate(-50%, 0); }
.toast.is-error { background: #9f252e; }

.site-footer { padding-block: 1.15rem; }
.footer-inner { display: flex; flex-wrap: wrap; align-items: center; gap: .6rem clamp(.9rem, 3.6vw, 3rem); font-size: .82rem; }
.footer-links { display: flex; flex-wrap: wrap; gap: .15rem clamp(1rem, 3.5vw, 2.9rem); margin-left: auto; }
.footer-links a { display: inline-flex; align-items: center; min-height: 32px; }
.footer-links a:hover { text-decoration: underline; text-underline-offset: .18em; }
.legal {
  padding: 90px 0 80px;
}

.legal-content {
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: clamp(16px, 5vw, 40px);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  color: var(--muted);
  line-height: 1.7;
  overflow-wrap: anywhere;
}

.legal-content h1,
.legal-content h2,
.legal-content h3,
.legal-content h4 {
  color: var(--text);
}

.legal-table-scroll {
  max-width: 100%;
  overflow-x: auto;
}

.legal-content table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 16px;
  overflow-wrap: normal;
}

.legal-content th,
.legal-content td {
  border: 1px solid var(--line);
  padding: 10px;
  text-align: left;
}

.legal-note {
  margin-top: 20px;
  font-style: italic;
}

.legal-consent-actions {
  margin-top: 12px;
  margin-bottom: 8px;
}

.not-found-actions {
  margin-top: 20px;
}

.consent-bar,
.consent-modal {
  position: fixed;
  max-height: calc(100dvh - 2rem);
  padding: 0;
  border: 0;
  color: var(--text);
  background: var(--surface);
  overflow: auto;
  overscroll-behavior: contain;
}

.consent-bar {
  inset: auto 0 0;
  width: 100%;
  max-width: none;
  margin: 0;
  border-top: 1px solid var(--line);
  box-shadow: 0 -18px 40px rgba(15, 23, 42, 0.14);
}

.consent-bar::backdrop,
.consent-modal::backdrop {
  background: rgba(7, 10, 14, 0.56);
}

html:has(.consent-bar[open], .consent-modal[open]) {
  overflow: hidden;
}

.consent-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 18px 0;
}

.consent-copy h2 {
  margin: 0 0 6px;
  font-size: 1rem;
}

.consent-copy p {
  margin: 0;
  color: var(--muted);
  max-width: 760px;
}

.consent-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.consent-modal {
  width: min(640px, 92vw);
  border: 1px solid var(--border);
  border-radius: 18px;
  box-shadow: var(--shadow);
  scroll-padding-block: 8px;
}

.consent-dialog {
  position: relative;
  padding: 22px 22px 18px;
}

.consent-close {
  position: absolute;
  top: 8px;
  right: 10px;
  border: 0;
  background: transparent;
  color: var(--muted);
  font-size: 1.4rem;
  cursor: pointer;
}

.consent-option {
  margin-top: 14px;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 14px;
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: center;
}

.consent-option--stack {
  display: block;
}

.consent-option-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.consent-option-controls {
  display: flex;
  align-items: center;
  gap: 12px;
}

.consent-option h3 {
  margin: 0 0 4px;
  font-size: 1rem;
}

.consent-option p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.consent-accordion-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: transparent;
  border: 0;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 600;
  padding: 2px 4px;
  cursor: pointer;
}

.consent-accordion-toggle svg {
  width: 16px;
  height: 16px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: transform 0.22s ease;
}

.consent-option--stack.is-open .consent-accordion-toggle svg {
  transform: rotate(180deg);
}

.consent-accordion-panel {
  margin-top: 12px;
}

.consent-accordion-panel p {
  margin: 0;
  color: var(--muted);
}

.consent-definition-list {
  margin: 12px 0 0;
  padding: 12px 0 0;
  border-top: 1px solid var(--border);
  display: grid;
  grid-template-columns: minmax(130px, 170px) 1fr;
  row-gap: 8px;
  column-gap: 12px;
}

.consent-definition-list div {
  display: contents;
}

.consent-definition-list dt {
  color: var(--muted);
  font-weight: 600;
}

.consent-definition-list dd {
  margin: 0;
}

.consent-switch {
  display: inline-flex;
  align-items: center;
  position: relative;
  --switch-width: 46px;
  --switch-height: 26px;
  --switch-padding: 3px;
  --thumb-size: 20px;
  --thumb-shift: calc(var(--switch-width) - var(--thumb-size) - (var(--switch-padding) * 2));
}

.consent-switch input {
  position: absolute;
  opacity: 0;
  width: 1px;
  height: 1px;
  pointer-events: none;
}

.consent-switch span {
  width: var(--switch-width);
  height: var(--switch-height);
  background: #b9bec8;
  border: 1px solid #b9bec8;
  border-radius: 999px;
  position: relative;
  cursor: pointer;
  transition: background-color 0.24s ease, border-color 0.24s ease;
}

.consent-switch span::after {
  content: "";
  position: absolute;
  width: var(--thumb-size);
  height: var(--thumb-size);
  left: var(--switch-padding);
  top: 50%;
  border-radius: 50%;
  background: #ffffff;
  border: 1px solid rgba(15, 23, 42, 0.12);
  box-shadow: 0 1px 4px rgba(15, 23, 42, 0.22);
  transform: translate(0, -50%);
  transition: transform 0.28s cubic-bezier(0.22, 0.8, 0.26, 1);
}

.consent-switch input:checked + span {
  background: var(--accent);
  border-color: var(--accent);
}

.consent-switch input:checked + span::after {
  transform: translate(var(--thumb-shift), -50%);
}

.consent-switch input:focus-visible + span {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.consent-switch--disabled span {
  cursor: not-allowed;
  opacity: 0.9;
}

.consent-switch--disabled input:checked + span {
  background: color-mix(in oklab, var(--accent) 76%, #ffffff 24%);
  border-color: color-mix(in oklab, var(--accent) 76%, #ffffff 24%);
}

.consent-switch--disabled input:checked + span::after {
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.2);
}

.consent-modal-actions {
  margin-top: 18px;
  display: flex;
  justify-content: flex-end;
}


.legal { padding: clamp(2rem, 5vw, 4.5rem) 0; }
.legal-content { display: flow-root; }
.legal-content h1 { margin-bottom: 1rem; font-size: clamp(2rem, 5vw, 3.6rem); }
.legal-content h2 { margin-top: 1.5em; font-size: clamp(1.3rem, 3vw, 1.9rem); }
.legal-content h3 { margin-top: 1.1em; }
.legal-content p { margin-top: .5rem; }

@media (max-width: 900px) {
  :root { --header-height: 58px; --header-logo-size: 54px; }
  .header-inner { grid-template-columns: 1fr auto; }
  .main-nav { display: none; }
  .menu-toggle { display: inline-grid; }
  .site-header.is-menu-open .mobile-nav {
    display: grid;
    position: absolute;
    inset: 100% 0 auto;
    padding: .35rem var(--gutter);
    border-bottom: 1px solid var(--line);
    background: var(--surface);
    box-shadow: var(--shadow);
  }
  .mobile-nav a { padding: .6rem 0; }
  .mobile-nav a + a { border-top: 1px solid var(--border); }
  .tech-grid { --tech-columns: 4; }
  .tech-card { min-height: 84px; }
  .contact-section.is-open .contact-panel { padding-top: 3rem; gap: 1.2rem; }
}

@media (max-width: 820px) {
  .contact-section.is-open .contact-panel { grid-template-columns: minmax(0, 1fr); grid-template-rows: auto; }
  .is-open .contact-copy, .contact-reasons, .contact-form { grid-column: 1; grid-row: auto; }
  .contact-reasons { gap: .75rem; }
  .contact-form { margin-top: 0; }
  .is-open .contact-panel::after { inset: 0 -5% auto auto; height: 290px; width: 58%; background-position: right top; opacity: .22; }
}

@media (max-width: 760px) {
  .hero-inner { grid-template-columns: minmax(0, 1fr); }
  .hero-copy { padding-block: 1.65rem 1.35rem; padding-inline-end: var(--gutter); }
  .hero-visual { min-height: 0; aspect-ratio: 2.35; }
}

@media (max-width: 720px) {
  .about, .skills-layout { grid-template-columns: 1fr; }
  .about { gap: .75rem; }
  .about-portrait { margin-top: 0; margin-right: 1.1rem; width: min(88%, 450px); justify-self: center; }
  .about-portrait::before { right: -4%; transform: skewX(-12deg); }
  .skills-copy { padding-right: 0; }
  .skill-meters { margin-top: 1.65rem; border-left: 0; border-top: 1px solid var(--border); padding: 1.25rem 0 0; }
  .contact-panel::before { background: linear-gradient(105deg, #16434d 8%, #154b55ee 54%, #16434d9e 100%), url("/assets/Potsdam-1600.jpg") 65% 52% / cover; }
  .footer-links { margin-left: 0; }
}

@media (max-width: 620px) {
  .timeline-card { grid-template-columns: 3rem minmax(0, 1fr); }
  .timeline-card:has(.timeline-logo) .timeline-icon { grid-row: span 2; }
  .timeline-logo { grid-column: 2; margin: 0 1rem .65rem; }
}

@media (max-width: 460px) {
  :root { --gutter: 17px; }
  .tech-grid { --tech-columns: 2; }
  .timeline { --timeline-marker-x: .38rem; --timeline-marker-y: .93rem; }
  .timeline-item { display: block; padding-left: 1.45rem; }
  .timeline-time { display: flex; flex-wrap: wrap; align-items: baseline; gap: .3rem; padding: .3rem 0 .4rem; }
  .timeline-card { grid-template-columns: 2.5rem minmax(0, 1fr); }
  .timeline-icon .icon { width: 1.35rem; height: 1.35rem; }
  .contact-section.is-open .contact-panel { padding-inline: .8rem; }
  .is-open .contact-copy, .contact-reasons { padding-inline: .4rem; }
  .contact-fields { grid-template-columns: minmax(0, 1fr); }
  .contact-form { padding: .85rem; }
  .footer-inner { gap: .25rem .6rem; }
}

@media (max-width: 900px) {
  .consent-inner, .consent-option-top { flex-direction: column; align-items: flex-start; }
  .consent-actions { width: 100%; justify-content: flex-start; }
  .consent-option-controls { width: 100%; justify-content: space-between; }
  .consent-definition-list { grid-template-columns: 1fr; gap: 4px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}