/* ============ Variables ============ */

:root {
  --color-bg: #F7F3ED;
  --color-surface: #FFFFFF;
  --color-text: #1F2A2E;
  --color-text-muted: #5A6670;
  --color-primary: #2C5F5D;
  --color-primary-soft: #4A7F7C;
  --color-accent: #C77B5C;
  --color-accent-hover: #B36B4D;
  --color-border: #E5DDD0;

  --font-serif: 'Lora', Georgia, serif;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --line-height-body: 1.65;
  --max-width-text: 720px;
  --max-width-content: 1100px;

  --space-2xs: 0.5rem;
  --space-xs: 0.75rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;
  --space-3xl: 8rem;
}

/* ============ Reset & Base ============ */

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: var(--line-height-body);
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: var(--color-primary);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a:hover {
  color: var(--color-primary-soft);
}

button {
  font-family: inherit;
  font-size: inherit;
  cursor: pointer;
}

/* ============ Focus ============ */

:focus {
  outline: none;
}

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ============ Typography ============ */

h1,
h2,
h3 {
  font-family: var(--font-serif);
  font-weight: 500;
  line-height: 1.2;
  color: var(--color-text);
  margin: 0 0 var(--space-md) 0;
  letter-spacing: -0.01em;
}

h1 {
  font-size: clamp(2rem, 5vw, 3.25rem);
  line-height: 1.15;
}

h2 {
  font-size: clamp(1.625rem, 3.5vw, 2.25rem);
  margin-bottom: var(--space-lg);
}

h3 {
  font-size: 1.25rem;
  margin-bottom: var(--space-sm);
}

p {
  margin: 0 0 var(--space-md) 0;
  max-width: var(--max-width-text);
}

p:last-child {
  margin-bottom: 0;
}

.lead {
  font-size: 1.125rem;
  color: var(--color-text-muted);
}

.eyebrow {
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-sm);
  display: block;
}

/* ============ Layout ============ */

.container {
  width: 100%;
  max-width: var(--max-width-content);
  margin: 0 auto;
  padding-left: var(--space-md);
  padding-right: var(--space-md);
}

.container-narrow {
  max-width: var(--max-width-text);
  margin: 0 auto;
  padding-left: var(--space-md);
  padding-right: var(--space-md);
}

main {
  display: block;
}

section {
  padding-top: var(--space-2xl);
  padding-bottom: var(--space-2xl);
}

/* ============ Header ============ */

.site-header {
  border-bottom: 1px solid var(--color-border);
  background-color: var(--color-bg);
  position: sticky;
  top: 0;
  z-index: 50;
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  padding-top: var(--space-sm);
  padding-bottom: var(--space-sm);
  min-height: 64px;
}

.site-header__logo {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  flex-shrink: 0;
}

.site-header__logo img {
  height: 32px;
  width: auto;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.site-nav__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.site-nav__link {
  font-size: 0.95rem;
  color: var(--color-text);
  text-decoration: none;
  padding: var(--space-2xs) var(--space-2xs);
  display: inline-block;
}

.site-nav__link:hover {
  color: var(--color-primary);
}

.site-nav__actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.lang-switch {
  display: inline-flex;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  padding: 2px;
  background-color: var(--color-surface);
}

.lang-switch__option {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  min-height: 28px;
  padding: 0 12px;
  border-radius: 999px;
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.5px;
  line-height: 1;
  transition: background-color 0.15s ease, color 0.15s ease;
}

.lang-switch__option:hover {
  color: var(--color-text);
}

.lang-switch__option--active {
  background-color: var(--color-primary);
  color: #FFFFFF;
  pointer-events: none;
}

.lang-switch__option--active:hover {
  color: #FFFFFF;
}

.site-nav__cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0 1.25rem;
  background-color: var(--color-accent);
  color: #FFFFFF;
  border-radius: 2px;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 500;
  text-decoration: none;
  transition: background-color 0.15s ease;
  white-space: nowrap;
}

.site-nav__cta:hover {
  background-color: var(--color-accent-hover);
  color: #FFFFFF;
}

.burger {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: none;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: 0;
  color: var(--color-text);
}

.burger__icon,
.burger__icon::before,
.burger__icon::after {
  content: "";
  display: block;
  width: 20px;
  height: 1.5px;
  background-color: currentColor;
  transition: transform 0.2s ease;
}

.burger__icon {
  position: relative;
}

.burger__icon::before {
  position: absolute;
  top: -6px;
  left: 0;
}

.burger__icon::after {
  position: absolute;
  top: 6px;
  left: 0;
}

.burger[aria-expanded="true"] .burger__icon {
  background-color: transparent;
}

.burger[aria-expanded="true"] .burger__icon::before {
  transform: translateY(6px) rotate(45deg);
}

.burger[aria-expanded="true"] .burger__icon::after {
  transform: translateY(-6px) rotate(-45deg);
}

/* Mobile nav drawer */
.site-nav {
  position: fixed;
  top: 64px;
  left: 0;
  right: 0;
  background-color: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  flex-direction: column;
  align-items: stretch;
  gap: 0;
  padding: var(--space-md);
  transform: translateY(-110%);
  transition: transform 0.25s ease;
  visibility: hidden;
}

.site-nav.is-open {
  transform: translateY(0);
  visibility: visible;
}

.site-nav__list {
  flex-direction: column;
  align-items: stretch;
  gap: 0;
  margin-bottom: var(--space-md);
}

.site-nav__list li {
  border-bottom: 1px solid var(--color-border);
}

.site-nav__list li:last-child {
  border-bottom: none;
}

.site-nav__link {
  padding: var(--space-sm) 0;
  display: block;
  min-height: 44px;
}

.site-nav__actions {
  flex-direction: column;
  align-items: stretch;
  gap: var(--space-md);
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-md);
  margin-top: var(--space-2xs);
}

.site-nav__actions .lang-switch {
  align-self: center;
}

.site-nav__actions .site-nav__cta {
  width: 100%;
  min-height: 48px;
}

/* ============ Hero ============ */

.hero {
  padding-top: var(--space-2xl);
  padding-bottom: var(--space-2xl);
}

.hero__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
  align-items: center;
}

.hero__headline {
  font-size: clamp(2.25rem, 6vw, 3.75rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-md);
  max-width: 18ch;
}

.hero__sub {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  max-width: 38rem;
  margin-bottom: var(--space-lg);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  align-items: center;
}

.hero__image {
  aspect-ratio: 1 / 1;
  background-color: var(--color-border);
  overflow: hidden;
  border-radius: 2px;
  width: 100%;
}

.hero__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* ============ Buttons ============ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0.75rem 1.75rem;
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 500;
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: 2px;
  cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.btn--primary {
  background-color: var(--color-accent);
  color: #FFFFFF;
}

.btn--primary:hover {
  background-color: var(--color-accent-hover);
  color: #FFFFFF;
}

.btn--ghost {
  background-color: transparent;
  color: var(--color-primary);
  border-color: var(--color-border);
}

.btn--ghost:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.text-link {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-thickness: 1px;
  font-weight: 500;
}

.text-link:hover {
  color: var(--color-primary-soft);
}

/* ============ Sections ============ */

.section-intro {
  margin-bottom: var(--space-lg);
  max-width: var(--max-width-text);
}

/* People section */
.people {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
}

.person {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: var(--space-md);
  display: flex;
  flex-direction: column;
}

.person__photo {
  aspect-ratio: 4 / 5;
  width: 100%;
  background-color: var(--color-border);
  margin-bottom: var(--space-md);
  overflow: hidden;
}

.person__photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.person__name {
  margin-bottom: var(--space-2xs);
}

.person__role {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-sm);
  display: block;
}

.person__bio {
  flex: 1;
  margin-bottom: var(--space-md);
}

.person__link {
  align-self: flex-start;
}

/* Approach section (3 columns) */
.approach {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
}

.approach__item h3 {
  color: var(--color-primary);
}

/* CTA block */
.cta-block {
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-2xl);
  text-align: left;
}

.cta-block__text {
  margin-bottom: var(--space-lg);
  font-size: 1.0625rem;
}

/* ============ Form ============ */

.form {
  margin-top: var(--space-lg);
}

.form__field {
  margin-bottom: var(--space-md);
}

.form__label {
  display: block;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: var(--space-2xs);
}

.form__optional {
  color: var(--color-text-muted);
  font-weight: 400;
  font-size: 0.875rem;
}

.form__input,
.form__textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.5;
  color: var(--color-text);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 2px;
  min-height: 48px;
  transition: border-color 0.15s ease;
}

.form__textarea {
  resize: vertical;
  min-height: 9rem;
  font-family: var(--font-sans);
}

.form__input:hover,
.form__textarea:hover {
  border-color: var(--color-primary-soft);
}

.form__input:focus-visible,
.form__textarea:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  border-color: var(--color-primary);
}

.form__honeypot {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.form__submit {
  margin-top: var(--space-xs);
}

.form__privacy {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-top: var(--space-md);
}

.form__alt {
  margin-top: var(--space-xl);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-border);
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}

.form__error {
  margin-top: var(--space-md);
  padding: var(--space-sm) var(--space-md);
  background-color: #FBEEE7;
  border: 1px solid var(--color-accent);
  border-left-width: 3px;
  color: var(--color-text);
  font-size: 0.9375rem;
  border-radius: 2px;
}

.form__error a {
  color: var(--color-accent);
}

/* ============ Prose (Datenschutz, Impressum) ============ */

.prose p,
.prose ul,
.prose ol {
  max-width: var(--max-width-text);
}

.prose ul,
.prose ol {
  padding-left: 1.25rem;
  margin: 0 0 var(--space-md) 0;
}

.prose li {
  margin-bottom: var(--space-2xs);
  line-height: var(--line-height-body);
}

.prose li > strong {
  color: var(--color-text);
}

.prose h2 {
  margin-top: var(--space-xl);
  margin-bottom: var(--space-md);
  font-size: 1.375rem;
}

.prose h2:first-of-type {
  margin-top: var(--space-md);
}

.prose h3 {
  margin-top: var(--space-lg);
  margin-bottom: var(--space-2xs);
  font-size: 1.0625rem;
}

.prose__meta {
  color: var(--color-text-muted);
  font-size: 0.9375rem;
  margin-bottom: var(--space-lg);
}

/* ============ Article (Blog) ============ */

.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-sm) var(--space-md);
  margin: var(--space-md) 0 var(--space-lg) 0;
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--color-border);
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}

.article-meta__author {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2xs);
}

.article-meta__author-photo {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  object-fit: cover;
}

.article-meta__author a {
  color: var(--color-text);
  text-decoration: none;
  font-weight: 500;
}

.article-meta__author a:hover {
  color: var(--color-primary);
}

.article-meta__divider {
  color: var(--color-border);
  user-select: none;
}

.article-hero {
  margin: 0 0 var(--space-lg) 0;
}

.article-hero img {
  width: 100%;
  height: auto;
  border-radius: 2px;
  display: block;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.article-hero__caption {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-top: var(--space-2xs);
  text-align: center;
  font-style: italic;
}

.article-figure {
  margin: var(--space-lg) 0;
}

.article-figure img,
.article-figure svg {
  width: 100%;
  height: auto;
  border-radius: 2px;
  display: block;
}

.article-figure figcaption {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-top: var(--space-2xs);
  text-align: center;
}

.article-pullquote {
  margin: var(--space-xl) 0;
  padding: var(--space-2xs) 0 var(--space-2xs) var(--space-md);
  border-left: 3px solid var(--color-accent);
  font-family: var(--font-serif);
  font-size: 1.25rem;
  line-height: 1.4;
  color: var(--color-text);
  font-style: italic;
}

.article-pullquote p {
  margin: 0;
  max-width: none;
}

.article-author-box {
  margin-top: var(--space-2xl);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-border);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  align-items: flex-start;
}

.article-author-box__photo {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}

.article-author-box__content {
  flex: 1;
  min-width: 200px;
}

.article-author-box h3 {
  margin: 0 0 var(--space-2xs) 0;
  font-size: 1.0625rem;
  font-family: var(--font-serif);
}

.article-author-box p {
  margin: 0 0 var(--space-sm) 0;
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}

.article-author-box__role {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-xs) !important;
}

/* Blog listing on /blog/ */
.blog-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.blog-list__item {
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--color-border);
}

.blog-list__item:first-child {
  padding-top: 0;
}

.blog-list__date {
  display: block;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-2xs);
}

.blog-list__title {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 500;
  margin: 0 0 var(--space-2xs) 0;
}

.blog-list__title a {
  color: var(--color-text);
  text-decoration: none;
}

.blog-list__title a:hover {
  color: var(--color-primary);
}

.blog-list__excerpt {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  margin: 0;
}

/* ============ Footer ============ */

.site-footer {
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-xl);
  padding-bottom: var(--space-lg);
  margin-top: var(--space-2xl);
}

.site-footer__top {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
  margin-bottom: var(--space-lg);
}

.site-footer__brand img {
  height: 24px;
  width: auto;
  margin-bottom: var(--space-sm);
}

.site-footer__tagline {
  color: var(--color-text-muted);
  font-size: 0.9375rem;
  margin: 0;
}

.site-footer__col h4 {
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin: 0 0 var(--space-sm) 0;
}

.site-footer__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-footer__list li {
  margin-bottom: var(--space-2xs);
}

.site-footer__list a {
  color: var(--color-text);
  text-decoration: none;
  font-size: 0.9375rem;
}

.site-footer__list a:hover {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.site-footer__bottom {
  display: flex;
  flex-direction: column;
  gap: var(--space-2xs);
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-border);
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* ============ Utilities ============ */

.visually-hidden {
  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: absolute;
  top: -40px;
  left: var(--space-md);
  background-color: var(--color-primary);
  color: #FFFFFF;
  padding: var(--space-2xs) var(--space-sm);
  text-decoration: none;
  border-radius: 2px;
  z-index: 100;
}

.skip-link:focus {
  top: var(--space-2xs);
  color: #FFFFFF;
}

/* ============ Media Queries ============ */

@media (min-width: 768px) {
  section {
    padding-top: var(--space-3xl);
    padding-bottom: var(--space-3xl);
  }

  .hero {
    padding-top: var(--space-3xl);
    padding-bottom: var(--space-3xl);
  }

  .hero__inner {
    grid-template-columns: 1.1fr 1fr;
    gap: var(--space-2xl);
  }

  /* Desktop nav */
  .burger {
    display: none;
  }

  .site-nav {
    position: static;
    top: auto;
    background: none;
    border: none;
    padding: 0;
    flex-direction: row;
    justify-content: space-between;
    flex: 1;
    margin-left: var(--space-lg);
    transform: none;
    visibility: visible;
    transition: none;
  }

  .site-nav__list {
    flex-direction: row;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: 0;
  }

  .site-nav__list li {
    border-bottom: none;
  }

  .site-nav__link {
    padding: var(--space-2xs) var(--space-2xs);
    display: inline-block;
    min-height: auto;
  }

  .site-nav__actions {
    flex-direction: row;
    align-items: center;
    gap: var(--space-md);
    border-top: none;
    padding-top: 0;
    margin-top: 0;
  }

  .site-nav__actions .lang-switch {
    align-self: auto;
  }

  .site-nav__actions .site-nav__cta {
    width: auto;
    min-height: 40px;
  }

  .people {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
  }

  .approach {
    grid-template-columns: 1fr 1fr 1fr;
    gap: var(--space-lg);
  }

  .site-footer__top {
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: var(--space-xl);
  }

  .site-footer__bottom {
    flex-direction: row;
    justify-content: space-between;
  }
}

/* ============ Tablet adjustments (768-1023px) ============ */

@media (min-width: 768px) and (max-width: 1023px) {
  .site-nav {
    margin-left: var(--space-md);
  }

  .site-nav__list {
    gap: var(--space-sm);
  }

  .site-nav__link {
    font-size: 0.875rem;
    padding: var(--space-2xs);
  }

  .site-nav__actions {
    gap: var(--space-sm);
  }

  .site-nav__cta {
    padding: 0 1rem;
    font-size: 0.875rem;
    min-height: 38px;
  }

  .lang-switch__option {
    min-width: 32px;
    padding: 0 8px;
    font-size: 0.75rem;
  }

  .approach {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
  }
}

@media (min-width: 1100px) {
  section {
    padding-top: var(--space-3xl);
    padding-bottom: var(--space-3xl);
  }

  .approach {
    gap: var(--space-xl);
  }

  .site-nav {
    margin-left: var(--space-2xl);
  }
}

/* ============ Reduce Motion ============ */

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}