:root {
  --color-background: #f7f6f2;
  --color-surface: #efede7;
  --color-text: #1c1d1f;
  --color-text-muted: #62666a;
  --color-border: #d8d6cf;
  --color-accent: #23384d;
  --color-accent-hover: #314d68;
  --color-accent-soft: #e8edf1;
  --color-hero-text: #f7f6f2;
  --color-hero-muted: #d5dce3;
  --color-hero-border: rgba(255, 255, 255, 0.16);

  /* Alternative Akzentpalette Blaugruen:
  --color-accent: #193d3e;
  --color-accent-hover: #28575a;
  --color-accent-soft: #e5ecea;
  */

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  --page-gutter: clamp(1rem, 4vw, 4rem);
  --content-max: 1180px;
  --text-max: 70ch;
  --line: 1px solid var(--color-border);
  --line-subtle: 1px solid color-mix(in srgb, var(--color-border) 72%, transparent);
  --space-section-large: clamp(3.6rem, 6vw, 5.6rem);
  --space-section-medium: clamp(3.2rem, 5.5vw, 5rem);
  --space-section-small: clamp(2rem, 4vw, 3.25rem);
  --space-hero-after: clamp(0.35rem, 0.8vw, 0.55rem);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--color-background);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.62;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: var(--color-accent);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.24em;
}

a:hover {
  color: var(--color-accent-hover);
}

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 4px;
}

.hero a:focus-visible {
  outline-color: var(--color-hero-text);
}

button {
  font: inherit;
}

h1,
h2,
h3,
p {
  margin-block-start: 0;
}

h1,
h2,
h3 {
  line-height: 1.04;
  font-weight: 680;
}

h1 {
  max-width: 25ch;
  margin-block-end: 1.35rem;
  font-size: clamp(2.45rem, 5.4vw, 4.05rem);
}

h2 {
  max-width: 17ch;
  margin-block-end: 0.95rem;
  font-size: clamp(1.75rem, 3.1vw, 2.55rem);
}

h3 {
  margin-block-end: 0.55rem;
  font-size: clamp(1.18rem, 1.8vw, 1.46rem);
}

p {
  max-width: var(--text-max);
  margin-block-end: 1rem;
}

.skip-link {
  position: absolute;
  inset-block-start: 0.75rem;
  inset-inline-start: 0.75rem;
  z-index: 20;
  transform: translateY(-180%);
  background: var(--color-background);
  border: var(--line);
  color: var(--color-text);
  padding: 0.65rem 0.9rem;
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  border-block-end: var(--line);
}

.site-header__inner,
.section__inner,
.site-footer__inner {
  width: min(100% - (var(--page-gutter) * 2), var(--content-max));
  margin-inline: auto;
}

.site-header__inner {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.site-name {
  color: var(--color-text);
  font-weight: 660;
  text-decoration: none;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 2.4vw, 2rem);
}

.site-nav a {
  color: var(--color-text-muted);
  font-size: 0.96rem;
  text-decoration: none;
}

.site-nav a:hover {
  color: var(--color-text);
}

.site-nav a[aria-current="page"] {
  color: var(--color-text);
  text-decoration: underline;
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.35em;
}

.lang-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  color: var(--color-text-muted);
  font-size: 0.9rem;
  font-weight: 650;
  white-space: nowrap;
}

.lang-toggle a,
.lang-toggle .active {
  min-height: 32px;
  display: inline-flex;
  align-items: center;
  color: var(--color-text-muted);
  text-decoration: none;
}

.lang-toggle a:hover,
.lang-toggle .active {
  color: var(--color-text);
}

.nav-toggle {
  display: none;
}

.section {
  padding-block: var(--space-section-medium);
}

.hero {
  background: var(--color-accent);
  color: var(--color-hero-text);
  margin-block-end: var(--space-hero-after);
  padding-block: var(--space-section-large);
}

.section-heading {
  max-width: 820px;
}

.hero__intro,
.large-text,
.section-heading p {
  color: var(--color-text-muted);
  font-size: clamp(1.18rem, 2vw, 1.32rem);
  line-height: 1.58;
}

.hero__intro {
  max-width: 58ch;
  color: var(--color-hero-muted);
}

.text-action {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  margin-block-start: 0.35rem;
  font-weight: 650;
}

.text-action::after {
  content: "→";
  margin-inline-start: 0.45rem;
}

.hero .text-action {
  color: var(--color-hero-text);
  text-decoration-color: var(--color-hero-border);
}

.hero .text-action:hover {
  color: #ffffff;
  text-decoration-color: currentColor;
}

.work-steps {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  column-gap: clamp(2.4rem, 6vw, 5rem);
  row-gap: clamp(1.6rem, 3vw, 2.4rem);
  margin: clamp(1.8rem, 4vw, 3rem) 0 0;
  padding: 0;
  list-style: none;
}

.work-steps li {
  display: grid;
  grid-template-columns: minmax(3.4rem, 5rem) minmax(0, 1fr);
  gap: clamp(0.85rem, 1.6vw, 1.25rem);
  padding: 0;
}

.work-steps li:nth-child(n + 3) {
  border-block-start: var(--line-subtle);
  padding-block-start: clamp(1.4rem, 2.5vw, 2rem);
}

.work-steps__number {
  color: var(--color-accent);
  font-size: clamp(1.45rem, 3.2vw, 2.25rem);
  font-weight: 700;
  line-height: 1;
}

.work-steps p,
.topic-row p,
.project__copy p:not(.eyebrow),
.about__copy p,
.transparency p,
.contact p {
  color: var(--color-text-muted);
}

.project {
  background: var(--color-surface);
  border-block: var(--line);
  padding-block: var(--space-section-medium);
}

.project__inner {
  display: grid;
  grid-template-columns: minmax(0, 0.98fr) minmax(300px, 0.78fr);
  align-items: center;
  gap: clamp(2.3rem, 5vw, 4.6rem);
}

.eyebrow {
  margin-block-end: 1rem;
  color: var(--color-accent);
  font-size: 0.94rem;
  font-weight: 670;
}

.project__media {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  column-gap: clamp(0.75rem, 1.3vw, 1.25rem);
  align-items: start;
  max-width: 560px;
  justify-self: end;
}

.project__image {
  width: 100%;
  border: 1px solid color-mix(in srgb, var(--color-border) 74%, var(--color-text) 26%);
  border-radius: 6px;
  background: var(--color-background);
  box-shadow: 0 14px 34px rgba(28, 29, 31, 0.09);
}

.project__image--start {
  grid-column: 1 / span 7;
  grid-row: 1;
  z-index: 2;
}

.project__image--tutor {
  grid-column: 8 / span 5;
  grid-row: 1;
  margin-block-start: clamp(2rem, 4vw, 3.4rem);
  z-index: 1;
}

.topic-list {
  margin-block-start: clamp(1.6rem, 3.6vw, 2.8rem);
  border-block-start: var(--line-subtle);
}

.topic-row {
  display: grid;
  grid-template-columns: minmax(13rem, 0.48fr) minmax(0, 1fr);
  gap: clamp(1rem, 3vw, 3rem);
  padding-block: clamp(1.15rem, 2.4vw, 1.75rem);
  border-block-end: var(--line-subtle);
}

.topic-row h3 {
  margin-block-end: 0;
}

.topic-row p {
  margin-block-end: 0;
}

.photography-preview {
  padding-block: var(--space-section-small);
  border-block: var(--line-subtle);
}

.photography-preview__inner {
  display: grid;
  grid-template-columns: minmax(0, 0.72fr) minmax(320px, 0.6fr);
  align-items: center;
  gap: clamp(2rem, 5vw, 4.4rem);
}

.photography-preview__copy p {
  color: var(--color-text-muted);
}

.photography-preview__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(0.55rem, 1.2vw, 0.9rem);
}

.photography-preview__grid img {
  width: 100%;
  border: var(--line);
  border-radius: 4px;
  background: var(--color-surface);
}

.photography-preview__grid img:first-child {
  grid-column: 1 / -1;
}

.about__inner {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(220px, 0.46fr);
  align-items: center;
  gap: clamp(2rem, 5vw, 4.8rem);
}

.about {
  padding-block-start: var(--space-section-small);
}

.about__portrait {
  margin: 0;
}

.about__portrait img {
  aspect-ratio: 4 / 5;
  width: min(100%, 370px);
  margin-inline: auto;
  object-fit: cover;
  object-position: center 28%;
  border-radius: 4px;
}

.transparency {
  padding-block: var(--space-section-small);
  border-block: var(--line);
}

.transparency__inner {
  display: grid;
  grid-template-columns: minmax(9rem, 0.28fr) minmax(0, 1fr);
  gap: clamp(0.8rem, 2.8vw, 2.6rem);
}

.transparency h2 {
  max-width: none;
  margin-block-end: 0;
  font-size: clamp(1.15rem, 1.6vw, 1.35rem);
}

.transparency p {
  max-width: 66ch;
  font-size: 0.96rem;
  line-height: 1.58;
  margin-block-end: 0;
}

.contact {
  padding-block: var(--space-section-small);
}

.contact__inner {
  max-width: var(--content-max);
}

.contact h2 {
  max-width: none;
  font-size: clamp(1.65rem, 2.7vw, 2.25rem);
}

.contact p {
  max-width: 52ch;
}

.contact__mail {
  margin-block-start: 0.2rem;
  font-size: 0.96rem;
}

.page-header {
  background: var(--color-surface);
  border-block-end: var(--line);
  padding-block: clamp(2.6rem, 5vw, 4.4rem);
}

.page-header__inner {
  width: min(100% - (var(--page-gutter) * 2), var(--content-max));
  margin-inline: auto;
}

.page-header h1 {
  max-width: 18ch;
  margin-block-end: 1rem;
  font-size: clamp(2.25rem, 4.5vw, 3.45rem);
}

.page-lead {
  max-width: 62ch;
  color: var(--color-text-muted);
  font-size: clamp(1.16rem, 2vw, 1.32rem);
  line-height: 1.58;
}

.content-section {
  padding-block: var(--space-section-small);
}

.content-section--bordered {
  border-block-start: var(--line-subtle);
}

.content-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.72fr) minmax(240px, 0.36fr);
  gap: clamp(2rem, 5vw, 4.6rem);
  align-items: start;
}

.content-grid--media-left {
  grid-template-columns: minmax(220px, 0.36fr) minmax(0, 0.72fr);
}

.project-feature {
  display: grid;
  grid-template-columns: minmax(0, 0.78fr) minmax(230px, 0.36fr);
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: center;
}

.project-feature--reverse {
  grid-template-columns: minmax(220px, 0.34fr) minmax(0, 0.78fr);
}

.project-feature__media {
  margin: 0;
  width: min(100%, 320px);
  justify-self: end;
}

.project-feature--reverse .project-feature__media {
  justify-self: start;
}

.project-feature__media img {
  width: 100%;
  box-shadow: 0 14px 34px rgba(28, 29, 31, 0.09);
}

.project-feature__media--secondary {
  width: min(100%, 260px);
}

.prose {
  max-width: 74ch;
}

.content-standard {
  max-width: 74ch;
}

.photography-page {
  padding-block: var(--space-section-medium);
}

.photo-series {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(2rem, 5vw, 4rem) clamp(1.2rem, 3vw, 2rem);
}

.photo-entry {
  margin: 0;
}

.photo-entry--wide {
  grid-column: 1 / -1;
}

.photo-entry img {
  width: 100%;
  border: var(--line);
  border-radius: 4px;
  background: var(--color-surface);
}

.photo-entry figcaption {
  max-width: 66ch;
  margin-block-start: 0.85rem;
  color: var(--color-text-muted);
  font-size: 0.96rem;
  line-height: 1.55;
}

.photo-entry figcaption strong {
  display: block;
  margin-block-end: 0.1rem;
  color: var(--color-text);
  font-size: 1.02rem;
}

.content-legal {
  max-width: 78ch;
}

.prose h2 {
  max-width: 20ch;
  margin-block-start: clamp(2rem, 4vw, 3rem);
}

.prose h2:first-child {
  margin-block-start: 0;
}

.prose h3 {
  margin-block-start: 1.55rem;
}

.prose p,
.prose li {
  color: var(--color-text-muted);
}

.prose ul {
  margin: 0 0 1.2rem;
  padding-inline-start: 1.25rem;
}

.prose li + li {
  margin-block-start: 0.35rem;
}

.quiet-note {
  max-width: 70ch;
  color: var(--color-text-muted);
  font-size: 0.94rem;
}

.media-stack {
  display: grid;
  gap: 1rem;
}

.framed-image {
  border: var(--line);
  border-radius: 6px;
  background: var(--color-background);
}

.portrait-page img {
  aspect-ratio: 4 / 5;
  width: min(100%, 360px);
  object-fit: cover;
  object-position: center 28%;
  border-radius: 4px;
}

.store-links,
.link-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem 1rem;
  align-items: center;
  margin-block-start: 1rem;
}

.store-badge img {
  width: auto;
  height: 42px;
}

.store-badge img[src$="google-play-badge-de.png"],
.store-badge img[src$="google-play-badge-en.png"] {
  height: 48px;
}

.plain-action {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  font-weight: 650;
}

.recommendation {
  display: grid;
  grid-template-columns: minmax(190px, 0.34fr) minmax(0, 1fr);
  gap: clamp(1.4rem, 4vw, 3rem);
  padding-block: clamp(2rem, 4vw, 3rem);
  border-block-start: var(--line-subtle);
}

.recommendation:first-of-type {
  border-block-start: 0;
  padding-block-start: 0;
}

.recommendation__media img {
  aspect-ratio: 1;
  width: min(100%, 280px);
  object-fit: cover;
}

.recommendation__body h2 {
  max-width: none;
}

.recommendation__meta {
  color: var(--color-accent);
  font-size: 0.94rem;
  font-weight: 670;
}

.legal-prose {
  max-width: 78ch;
}

.legal-prose h2 {
  max-width: none;
  margin-block-start: 2rem;
  font-size: clamp(1.35rem, 2vw, 1.65rem);
}

.legal-prose h3 {
  font-size: clamp(1.12rem, 1.6vw, 1.3rem);
}

.legal-prose address {
  color: var(--color-text-muted);
  font-style: normal;
  margin-block-end: 1rem;
}

.contact-list {
  display: grid;
  gap: 1rem;
  margin-block-start: 1.4rem;
}

.contact-list p {
  margin-block-end: 0.25rem;
}

.language-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
}

.language-card {
  max-width: 680px;
}

.language-card h1 {
  max-width: none;
}

.language-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem 1.2rem;
  margin-block-start: 1.25rem;
}

.site-footer {
  border-block-start: var(--line);
}

.site-footer__inner {
  min-height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  color: var(--color-text-muted);
  font-size: 0.94rem;
}

.site-footer p {
  margin: 0;
}

.site-footer a {
  color: var(--color-text-muted);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem 1.1rem;
  justify-content: flex-end;
}

.footer-links a {
  white-space: nowrap;
}

@media (max-width: 760px) {
  html {
    scroll-behavior: auto;
  }

  h1 {
    max-width: 13.4ch;
    font-size: clamp(2.25rem, 9vw, 3rem);
  }

  h2 {
    max-width: 15.5ch;
    font-size: clamp(1.65rem, 7vw, 2.25rem);
  }

  .site-header__inner {
    min-height: 64px;
    flex-wrap: wrap;
    align-items: center;
    padding-block: 0.85rem;
  }

  .site-name {
    margin-inline-end: auto;
  }

  .lang-toggle {
    order: 2;
  }

  .nav-toggle {
    order: 3;
  }

  .js .nav-toggle {
    display: inline-flex;
    min-width: 44px;
    min-height: 44px;
    align-items: center;
    justify-content: center;
    gap: 0.55rem;
    padding: 0;
    border: 0;
    background: transparent;
    color: var(--color-text);
    cursor: pointer;
  }

  .nav-toggle__label {
    font-size: 0.95rem;
  }

  .nav-toggle__lines,
  .nav-toggle__lines::before,
  .nav-toggle__lines::after {
    display: block;
    width: 18px;
    height: 2px;
    background: currentColor;
  }

  .nav-toggle__lines {
    position: relative;
  }

  .nav-toggle__lines::before,
  .nav-toggle__lines::after {
    content: "";
    position: absolute;
    inset-inline-start: 0;
  }

  .nav-toggle__lines::before {
    inset-block-start: -6px;
  }

  .nav-toggle__lines::after {
    inset-block-start: 6px;
  }

  .site-nav {
    order: 4;
    flex-basis: 100%;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding-block-start: 0.7rem;
    border-block-start: var(--line);
  }

  .js .site-nav {
    display: none;
  }

  .js .site-nav.is-open {
    display: flex;
  }

  .site-nav a {
    width: 100%;
    min-height: 44px;
    display: flex;
    align-items: center;
    color: var(--color-text);
  }

  .section {
    padding-block: clamp(2.8rem, 10vw, 4.2rem);
  }

  .hero {
    padding-block: clamp(2.8rem, 9vw, 4rem);
  }

  .about {
    padding-block-start: var(--space-section-small);
  }

  .work-steps,
  .project__inner,
  .topic-row,
  .about__inner,
  .transparency__inner,
  .photography-preview__inner,
  .photo-series,
  .content-grid,
  .content-grid--media-left,
  .project-feature,
  .project-feature--reverse,
  .recommendation {
    grid-template-columns: 1fr;
  }

  .work-steps li,
  .work-steps li:nth-child(even) {
    padding-inline: 0;
  }

  .work-steps li:nth-child(odd) {
    border-inline-end: 0;
  }

  .project__inner {
    gap: 2rem;
  }

  .project__media {
    grid-template-columns: 1fr;
    gap: 1.2rem;
    width: min(100%, 360px);
    max-width: 390px;
    justify-self: start;
  }

  .project__image--start,
  .project__image--tutor {
    grid-column: 1;
    grid-row: auto;
  }

  .project__image--tutor {
    margin-block-start: 0;
  }

  .project-feature__media,
  .project-feature--reverse .project-feature__media {
    justify-self: start;
  }

  .project-feature--reverse .project-feature__copy {
    order: 1;
  }

  .project-feature--reverse .project-feature__media {
    order: 2;
  }

  .project-feature__media {
    width: min(100%, 300px);
  }

  .project-feature__media--secondary {
    width: min(100%, 260px);
  }

  .about__portrait {
    order: -1;
  }

  .about__portrait img {
    width: min(100%, 300px);
    margin-inline: 0;
  }

  .photography-preview__grid {
    max-width: 560px;
  }

  .photo-entry--wide {
    grid-column: auto;
  }

  .portrait-page {
    order: -1;
  }

  .recommendation__media img {
    width: min(100%, 260px);
  }

  .transparency h2 {
    margin-block-end: 0.5rem;
  }

  .site-footer__inner {
    min-height: 70px;
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    padding-block: 1rem;
  }

  .footer-links {
    justify-content: flex-start;
  }
}

@media (max-width: 420px) {
  :root {
    --page-gutter: 1rem;
  }

  .work-steps li {
    grid-template-columns: 1fr;
    gap: 0.75rem;
  }

  .store-links,
  .link-actions {
    align-items: flex-start;
    flex-direction: column;
  }

  .site-nav a,
  .site-footer a,
  .prose a,
  .legal-prose a {
    overflow-wrap: anywhere;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
  }
}