/* ============================================
   PROF. DR. DAVID FEIERABEND — PERSONAL WEBSITE
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Playfair+Display:ital,wght@0,400;0,500;0,600;0,700;1,400;1,500&display=swap');

/* ── Variables ── */
:root {
  --navy:        #1A3D5C;
  --navy-dark:   #102840;
  --navy-mid:    #1A4E7A;
  --navy-light:  #EBF2F9;
  --off-white:   #F7F9FB;
  --white:       #FFFFFF;
  --text:        #1C2B3A;
  --text-muted:  #5B6B7E;
  --text-light:  #8A9AB0;
  --border:      #D9E8F2;
  --border-dark: #B8CDD8;

  --font-serif: 'Playfair Display', Georgia, serif;
  --font-sans:  'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  --container-max: 1160px;
  --container-pad: clamp(1.25rem, 5vw, 2.5rem);
  --section-py:    clamp(4rem, 8vw, 6.5rem);

  --radius:    6px;
  --radius-md: 10px;
  --radius-lg: 16px;

  --shadow-xs: 0 1px 4px rgba(26,61,92,0.07);
  --shadow-sm: 0 2px 10px rgba(26,61,92,0.09), 0 1px 3px rgba(26,61,92,0.05);
  --shadow-md: 0 8px 28px rgba(26,61,92,0.11), 0 2px 8px rgba(26,61,92,0.06);
  --shadow-lg: 0 20px 50px rgba(26,61,92,0.13), 0 6px 18px rgba(26,61,92,0.07);

  --nav-height: 70px;
  --ease: 200ms ease;
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}
img, video { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; background: none; border: none; }

/* ── Typography ── */
h1 { font-family: var(--font-serif); font-size: clamp(2rem, 5vw, 3.25rem); font-weight: 600; line-height: 1.2; letter-spacing: -0.02em; }
h2 { font-family: var(--font-serif); font-size: clamp(1.75rem, 4vw, 2.5rem); font-weight: 600; line-height: 1.25; }
h3 { font-family: var(--font-sans); font-size: clamp(1.05rem, 2.5vw, 1.3rem); font-weight: 600; line-height: 1.35; }
h4 { font-family: var(--font-sans); font-size: 1rem; font-weight: 600; line-height: 1.4; }
p { max-width: 70ch; }

/* ── Layout ── */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad);
}
.section { padding: var(--section-py) 0; }
.section--alt { background: var(--off-white); }
.section--light { background: var(--navy-light); }
.section--navy { background: var(--navy); color: var(--white); }

/* ── Section Headers ── */
.section-label {
  display: inline-block;
  font-size: 0.725rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--navy-mid);
  margin-bottom: 0.75rem;
}
.section-label--light { color: rgba(235,242,249,0.85); }

.section-header { margin-bottom: clamp(2.5rem, 5vw, 4rem); }
.section-header h2 { margin-bottom: 0.875rem; }
.section-header p { font-size: 1.0625rem; color: var(--text-muted); max-width: 62ch; }
.section-header--center { text-align: center; }
.section-header--center p { margin: 0 auto; }
.section-header--light h2 { color: var(--white); }
.section-header--light p { color: rgba(235,242,249,0.8); }
.section-header--light .section-label { color: rgba(235,242,249,0.7); }

/* ── Navigation ── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow var(--ease);
}
.site-header.scrolled { box-shadow: var(--shadow-sm); }

.nav {
  display: flex;
  align-items: center;
  height: var(--nav-height);
  gap: 1.5rem;
}

.nav-logo {
  display: flex;
  flex-direction: column;
  gap: 1px;
  margin-right: auto;
  flex-shrink: 0;
}
.nav-logo-pre {
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-light);
  line-height: 1;
}
.nav-logo-name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--navy);
  letter-spacing: -0.01em;
  line-height: 1.1;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.125rem;
}
.nav-links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-muted);
  padding: 0.4rem 0.7rem;
  border-radius: var(--radius);
  transition: color var(--ease), background var(--ease);
  white-space: nowrap;
}
.nav-links a:hover { color: var(--navy); background: var(--navy-light); }
.nav-links a.active { color: var(--navy); font-weight: 600; }
.nav-links .nav-cta {
  background: var(--navy-mid);
  color: var(--white) !important;
  padding: 0.5rem 1.125rem;
  border-radius: var(--radius);
  font-weight: 600;
  margin-left: 0.5rem;
}
.nav-links .nav-cta:hover { background: var(--navy-dark) !important; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 0.5rem;
  z-index: 200;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--navy);
  border-radius: 2px;
  transition: transform var(--ease), opacity var(--ease);
}
.nav-toggle.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 880px) {
  .nav-toggle { display: flex; }
  .nav-links {
    display: none;
    position: fixed;
    top: var(--nav-height);
    left: 0; right: 0; bottom: 0;
    background: var(--white);
    flex-direction: column;
    align-items: flex-start;
    padding: 1.5rem var(--container-pad) 2rem;
    gap: 0.25rem;
    border-top: 1px solid var(--border);
    overflow-y: auto;
  }
  .nav-links.is-open { display: flex; }
  .nav-links a { font-size: 1.0625rem; padding: 0.8rem 1rem; width: 100%; border-radius: var(--radius); }
  .nav-links .nav-cta { width: 100%; text-align: center; margin-left: 0; margin-top: 0.5rem; }
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.8125rem 1.875rem;
  border-radius: var(--radius);
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1;
  transition: background var(--ease), color var(--ease), box-shadow var(--ease), transform var(--ease);
  cursor: pointer;
  white-space: nowrap;
}
.btn-primary {
  background: var(--navy-mid);
  color: var(--white);
  box-shadow: var(--shadow-xs);
}
.btn-primary:hover {
  background: var(--navy-dark);
  box-shadow: var(--shadow-sm);
  transform: translateY(-1px);
}
.btn-secondary {
  background: transparent;
  color: var(--navy-mid);
  border: 1.5px solid var(--navy-mid);
}
.btn-secondary:hover { background: var(--navy-light); }
.btn-white {
  background: var(--white);
  color: var(--navy);
}
.btn-white:hover { background: var(--navy-light); transform: translateY(-1px); }
.btn-white-outline {
  background: transparent;
  color: var(--white);
  border: 1.5px solid rgba(255,255,255,0.55);
}
.btn-white-outline:hover { background: rgba(255,255,255,0.1); border-color: var(--white); }
.btn-lg { padding: 1rem 2.25rem; font-size: 1rem; }

/* ── Hero (Homepage) ── */
.hero {
  padding: clamp(4rem, 9vw, 7rem) 0 clamp(3.5rem, 7vw, 6rem);
  overflow: hidden;
}
.hero-inner {
  display: grid;
  grid-template-columns: 57fr 43fr;
  gap: clamp(2.5rem, 6vw, 5rem);
  align-items: center;
}
.hero-label {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--navy-mid);
  margin-bottom: 1.375rem;
}
.hero h1 { margin-bottom: 1.375rem; color: var(--text); }
.hero-sub {
  font-size: 1.125rem;
  color: var(--text-muted);
  margin-bottom: 2.25rem;
  max-width: 52ch;
  line-height: 1.7;
}
.hero-cta { margin-bottom: 2.75rem; }

.hero-image { position: relative; }
.hero-image-frame {
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4/5;
  background: var(--navy-light);
  position: relative;
}
.hero-image-frame img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: top center;
}
.hero-image-accent {
  position: absolute;
  bottom: -0.75rem;
  left: -0.75rem;
  width: 100px;
  height: 100px;
  background: var(--navy-light);
  border-radius: var(--radius-lg);
  z-index: -1;
}
.hero-image-accent2 {
  position: absolute;
  top: -0.75rem;
  right: -0.75rem;
  width: 60px;
  height: 60px;
  background: var(--border);
  border-radius: var(--radius-md);
  z-index: -1;
}

@media (max-width: 820px) {
  .hero-inner { grid-template-columns: 1fr; gap: 2.5rem; }
  .hero-image { order: -1; max-width: 280px; margin: 0 auto; }
  .hero-image-frame { aspect-ratio: 3/4; }
  .hero-content { text-align: center; }
  .hero-sub { margin: 0 auto 2rem; }
  .hero-cta { display: flex; justify-content: center; }
  .credential-bar { justify-content: center; }
}

/* ── Credential Bar ── */
.credential-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}
.credential-item {
  font-size: 0.74rem;
  font-weight: 600;
  color: var(--navy);
  background: var(--white);
  padding: 0.3rem 0.75rem;
  border-radius: 100px;
  border: 1px solid var(--border-dark);
  white-space: nowrap;
}

/* ── Intro Block ── */
.intro-section { background: var(--off-white); }
.intro-lead {
  font-size: 1.125rem;
  color: var(--text-muted);
  line-height: 1.8;
  max-width: 75ch;
}
.intro-lead p + p { margin-top: 1.125rem; }

/* ── Service / Arbeitsfeld Cards ── */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.125rem;
}
.card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.875rem 2rem;
  transition: box-shadow var(--ease), transform var(--ease), border-color var(--ease);
}
.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
  border-color: var(--border-dark);
}
.card-num {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--navy-mid);
  display: block;
  margin-bottom: 0.875rem;
}
.card h3 { color: var(--text); margin-bottom: 0.75rem; }
.card p { font-size: 0.9375rem; color: var(--text-muted); line-height: 1.65; margin-bottom: 1.375rem; }
.card-link {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--navy-mid);
  transition: gap var(--ease);
}
.card-link:hover { gap: 0.625rem; }
.card-link::after { content: '→'; }

@media (max-width: 600px) { .cards-grid { grid-template-columns: 1fr; } }

/* ── Principles / Three Columns ── */
.principles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.5rem;
}
.principle-num {
  font-family: var(--font-serif);
  font-size: 3rem;
  font-weight: 600;
  color: var(--border-dark);
  line-height: 1;
  margin-bottom: 1rem;
}
.principle h3 { margin-bottom: 0.625rem; }
.principle p { font-size: 0.9375rem; color: var(--text-muted); line-height: 1.65; }

@media (max-width: 768px) { .principles-grid { grid-template-columns: 1fr; gap: 2rem; } }

/* ── CTA Banner ── */
.cta-banner {
  background: var(--navy);
  text-align: center;
  padding: var(--section-py) var(--container-pad);
}
.cta-banner h2 { color: var(--white); margin-bottom: 1rem; }
.cta-banner p { font-size: 1.0625rem; color: rgba(235,242,249,0.8); margin: 0 auto 2.25rem; max-width: 52ch; }

/* ── Page Hero (inner pages) ── */
.page-hero {
  background: var(--off-white);
  padding: 4.5rem 0 3.5rem;
  border-bottom: 1px solid var(--border);
}
.page-hero .section-label { display: block; margin-bottom: 0.75rem; }
.page-hero h1 { margin-bottom: 1rem; }
.page-hero-sub { font-size: 1.125rem; color: var(--text-muted); max-width: 66ch; line-height: 1.7; }

/* ── Profile Bio Grid ── */
.bio-grid {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 4rem;
  align-items: start;
}
.bio-image {
  position: sticky;
  top: calc(var(--nav-height) + 2rem);
}
.bio-image-frame {
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 3/4;
  background: var(--navy-light);
}
.bio-image-frame img { width: 100%; height: 100%; object-fit: cover; object-position: top center; }
.bio-text p { font-size: 1.0625rem; color: var(--text-muted); line-height: 1.8; max-width: none; }
.bio-text p + p { margin-top: 1rem; }
.bio-tags { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 1.75rem; }
.tag {
  font-size: 0.74rem;
  font-weight: 600;
  color: var(--navy);
  background: var(--navy-light);
  padding: 0.3rem 0.75rem;
  border-radius: 100px;
  border: 1px solid var(--border);
}

@media (max-width: 800px) {
  .bio-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .bio-image { position: static; max-width: 240px; margin: 0 auto; }
}

/* ── Timeline ── */
.timeline { position: relative; padding-left: 1.875rem; }
.timeline::before {
  content: '';
  position: absolute;
  left: 0; top: 8px; bottom: 8px;
  width: 2px;
  background: var(--border);
}
.timeline-item { position: relative; padding-bottom: 2.75rem; }
.timeline-item:last-child { padding-bottom: 0; }
.timeline-item::before {
  content: '';
  position: absolute;
  left: -1.875rem;
  top: 7px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--navy-mid);
  border: 2px solid var(--white);
  box-shadow: 0 0 0 2px var(--navy-mid);
  transform: translateX(-4px);
}
.timeline-date {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--navy-mid);
  margin-bottom: 0.2rem;
}
.timeline-role {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.5rem;
  line-height: 1.35;
}
.timeline-body {
  font-size: 0.9375rem;
  color: var(--text-muted);
  line-height: 1.65;
  max-width: none;
}

/* ── Credentials Grid ── */
.creds-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.5rem;
}
.cred-group h4 {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--navy-mid);
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 2px solid var(--navy-light);
}
.cred-group ul { display: flex; flex-direction: column; gap: 0.625rem; }
.cred-group li {
  font-size: 0.9375rem;
  color: var(--text-muted);
  line-height: 1.5;
  padding-left: 1.125rem;
  position: relative;
}
.cred-group li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--border-dark);
  font-weight: 700;
}

@media (max-width: 768px) { .creds-grid { grid-template-columns: 1fr; gap: 2rem; } }

/* ── Arbeitsfeld Detail ── */
.arbeitsfeld-section { padding: clamp(3rem, 6vw, 5rem) 0; border-bottom: 1px solid var(--border); }
.arbeitsfeld-section:last-of-type { border-bottom: none; }
.arbeitsfeld-header {
  display: flex;
  align-items: flex-start;
  gap: 1.375rem;
  margin-bottom: 2.25rem;
}
.arbeitsfeld-num {
  flex-shrink: 0;
  width: 46px;
  height: 46px;
  background: var(--navy);
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.875rem;
  font-weight: 700;
  margin-top: 0.25rem;
}
.arbeitsfeld-header h2 { font-size: clamp(1.35rem, 3vw, 1.875rem); }
.arbeitsfeld-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3.5rem;
}
.arbeitsfeld-intro p {
  font-size: 1.0625rem;
  color: var(--text-muted);
  line-height: 1.8;
  max-width: none;
}
.arbeitsfeld-intro p + p { margin-top: 1rem; }
.arbeitsfeld-side-label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--navy-mid);
  margin-bottom: 1rem;
  display: block;
}
.leistungen-list { display: flex; flex-direction: column; gap: 0.5rem; margin-bottom: 2rem; }
.leistungen-list li {
  font-size: 0.9375rem;
  color: var(--text-muted);
  padding-left: 1.25rem;
  position: relative;
  line-height: 1.5;
}
.leistungen-list li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--navy-mid);
  font-weight: 700;
}
.situation-list { display: flex; flex-direction: column; gap: 0.75rem; }
.situation-item {
  font-size: 0.9375rem;
  color: var(--text-muted);
  font-style: italic;
  padding: 0.75rem 1rem 0.75rem 1.125rem;
  background: var(--off-white);
  border-left: 3px solid var(--border-dark);
  border-radius: 0 var(--radius) var(--radius) 0;
  line-height: 1.55;
}

@media (max-width: 768px) {
  .arbeitsfeld-grid { grid-template-columns: 1fr; gap: 2rem; }
  .arbeitsfeld-header { flex-direction: column; gap: 1rem; }
}

/* ── Case Studies (Wirkung) ── */
.fallstudie {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 2rem 2.25rem;
  margin-bottom: 1.25rem;
}
.fallstudie-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.75rem;
  flex-wrap: wrap;
  gap: 0.75rem;
}
.fallstudie-title {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text);
}
.fallstudie-badge {
  font-size: 0.73rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--navy-mid);
  background: var(--navy-light);
  padding: 0.3rem 0.8rem;
  border-radius: 100px;
  border: 1px solid var(--border);
}
.fallstudie-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}
.fallstudie-col label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--navy-mid);
  display: block;
  margin-bottom: 0.5rem;
}
.fallstudie-col p { font-size: 0.9375rem; color: var(--text-muted); line-height: 1.6; max-width: none; }
.fallstudie-footer {
  margin-top: 1.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border);
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

@media (max-width: 720px) { .fallstudie-grid { grid-template-columns: 1fr; gap: 1.5rem; } }

/* ── Testimonials ── */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.125rem;
}
.testimonial {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 2rem 2rem 1.75rem;
  position: relative;
}
.testimonial::before {
  content: '\201C';
  position: absolute;
  top: 0.875rem;
  left: 1.5rem;
  font-family: var(--font-serif);
  font-size: 4.5rem;
  color: var(--navy-light);
  line-height: 1;
}
.testimonial-text {
  font-size: 1.0625rem;
  color: var(--text);
  font-style: italic;
  line-height: 1.72;
  margin-top: 1.75rem;
  margin-bottom: 1.25rem;
  max-width: none;
}
.testimonial-author { font-size: 0.875rem; font-weight: 600; color: var(--text-muted); }

@media (max-width: 600px) { .testimonials-grid { grid-template-columns: 1fr; } }

/* ── Mandatsformate ── */
.formate-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.125rem;
}
.format-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 2rem 2.25rem;
  transition: box-shadow var(--ease), transform var(--ease);
}
.format-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.format-head {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1.25rem;
}
.format-num {
  flex-shrink: 0;
  width: 38px;
  height: 38px;
  background: var(--navy-light);
  color: var(--navy);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.875rem;
  font-weight: 700;
  margin-top: 0.1rem;
}
.format-card h3 { font-size: 1.125rem; }
.format-desc { font-size: 1rem; color: var(--text-muted); line-height: 1.65; margin-bottom: 1.25rem; max-width: none; }
.format-details {
  border-top: 1px solid var(--border);
  padding-top: 1.25rem;
  font-size: 0.9rem;
  color: var(--text-muted);
}
.format-details ul { display: flex; flex-direction: column; gap: 0.4rem; }
.format-details li { padding-left: 1.125rem; position: relative; line-height: 1.55; }
.format-details li::before { content: '—'; position: absolute; left: 0; color: var(--navy-mid); }
.format-badge {
  display: inline-block;
  font-size: 0.73rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--navy-mid);
  background: var(--navy-light);
  padding: 0.25rem 0.7rem;
  border-radius: 100px;
  margin-top: 0.875rem;
}

@media (max-width: 768px) { .formate-grid { grid-template-columns: 1fr; } }

/* ── Process Steps ── */
.prozess-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  position: relative;
}
.prozess-grid::before {
  content: '';
  position: absolute;
  top: 19px;
  left: calc(16.6% + 1rem);
  right: calc(16.6% + 1rem);
  height: 2px;
  background: var(--border);
}
.prozess-step { text-align: center; }
.prozess-num {
  width: 40px;
  height: 40px;
  background: var(--navy);
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.875rem;
  font-weight: 700;
  margin: 0 auto 1.25rem;
  position: relative;
  z-index: 1;
}
.prozess-step h3 { font-size: 1.05rem; margin-bottom: 0.625rem; }
.prozess-step p { font-size: 0.9375rem; color: var(--text-muted); line-height: 1.6; margin: 0 auto; }

@media (max-width: 600px) {
  .prozess-grid { grid-template-columns: 1fr; gap: 1.75rem; }
  .prozess-grid::before { display: none; }
  .prozess-step { text-align: left; display: flex; gap: 1.25rem; align-items: flex-start; }
  .prozess-num { flex-shrink: 0; margin: 0; }
}

/* ── Article Cards (Insights) ── */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.125rem;
}
.article-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: box-shadow var(--ease), transform var(--ease);
}
.article-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
.article-card-visual {
  background: var(--navy-light);
  height: 90px;
  display: flex;
  align-items: center;
  padding: 1.5rem 1.75rem;
}
.article-icon {
  font-size: 1.75rem;
  line-height: 1;
}
.article-card-body {
  padding: 1.5rem 1.75rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.article-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}
.article-cat {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--navy-mid);
}
.article-time { font-size: 0.75rem; color: var(--text-light); }
.article-card h3 { font-size: 1.1rem; margin-bottom: 0.75rem; line-height: 1.35; }
.article-card p { font-size: 0.9375rem; color: var(--text-muted); line-height: 1.62; flex: 1; margin-bottom: 1.375rem; }

@media (max-width: 768px) { .articles-grid { grid-template-columns: 1fr; } }

/* ── Newsletter Form ── */
.newsletter-wrap {
  max-width: 500px;
}
.newsletter-form {
  display: flex;
  gap: 0.75rem;
  margin-top: 1.25rem;
}
.newsletter-form input {
  flex: 1;
  padding: 0.8rem 1rem;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  background: var(--white);
  font-size: 0.9375rem;
  transition: border-color var(--ease);
}
.newsletter-form input:focus { outline: none; border-color: var(--navy-mid); }
.newsletter-form input::placeholder { color: var(--text-light); }

@media (max-width: 480px) { .newsletter-form { flex-direction: column; } }

/* ── Contact Layout ── */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 4rem;
  align-items: start;
}
.contact-sidebar {
  position: sticky;
  top: calc(var(--nav-height) + 2rem);
}
.contact-detail { margin-bottom: 2rem; }
.contact-detail-label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--navy-mid);
  display: block;
  margin-bottom: 0.375rem;
}
.contact-detail p, .contact-detail a {
  font-size: 0.9375rem;
  color: var(--text-muted);
  line-height: 1.55;
  max-width: none;
}
.contact-detail a:hover { color: var(--navy); text-decoration: underline; }

.expect-boxes {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-bottom: 3.5rem;
}
.expect-box {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.375rem 1.5rem;
}
.expect-box h4 { font-size: 0.875rem; color: var(--navy); margin-bottom: 0.5rem; }
.expect-box p { font-size: 0.875rem; color: var(--text-muted); line-height: 1.55; max-width: none; }

@media (max-width: 880px) {
  .contact-layout { grid-template-columns: 1fr; gap: 3rem; }
  .contact-sidebar { position: static; }
  .expect-boxes { grid-template-columns: 1fr; }
}
@media (max-width: 600px) { .expect-boxes { grid-template-columns: 1fr; } }

/* ── Contact Form ── */
.form { display: flex; flex-direction: column; gap: 1.25rem; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-group { display: flex; flex-direction: column; gap: 0.375rem; }
.form-group label { font-size: 0.875rem; font-weight: 600; color: var(--text); }
.form-group label .req { color: var(--navy-mid); }
.form-group input,
.form-group select,
.form-group textarea {
  padding: 0.8rem 1rem;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  background: var(--white);
  font-size: 0.9375rem;
  transition: border-color var(--ease), box-shadow var(--ease);
  line-height: 1.5;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--navy-mid);
  box-shadow: 0 0 0 3px rgba(26,78,122,0.1);
}
.form-group input::placeholder, .form-group textarea::placeholder { color: var(--text-light); }
.form-group textarea { resize: vertical; min-height: 130px; }
.form-group select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%235B6B7E' stroke-width='1.5' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
}
.form-privacy { font-size: 0.8125rem; color: var(--text-light); line-height: 1.55; }
.form-success {
  display: none;
  text-align: center;
  padding: 3.5rem 2rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--white);
}
.form-success.is-visible { display: block; }
.form-success-icon {
  width: 56px; height: 56px;
  background: #dcfce7;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 1.25rem;
  font-size: 1.5rem;
}
.form-success h3 { font-size: 1.375rem; font-family: var(--font-serif); color: var(--text); margin-bottom: 0.5rem; }
.form-success p { color: var(--text-muted); font-size: 0.9375rem; margin: 0 auto; }

@media (max-width: 600px) { .form-row { grid-template-columns: 1fr; } }

/* ── Footer ── */
.site-footer {
  background: var(--navy);
  color: rgba(255,255,255,0.65);
  padding: 4rem 0 2rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1.5fr 1.5fr;
  gap: 3.5rem;
  margin-bottom: 3rem;
}
.footer-name { font-size: 1rem; font-weight: 700; color: var(--white); margin-bottom: 0.375rem; }
.footer-tagline { font-size: 0.875rem; color: rgba(255,255,255,0.45); }
.footer-col-title {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.35);
  margin-bottom: 1rem;
}
.footer-nav-links { display: flex; flex-direction: column; gap: 0.5rem; }
.footer-nav-links a {
  font-size: 0.9375rem;
  color: rgba(255,255,255,0.6);
  transition: color var(--ease);
}
.footer-nav-links a:hover { color: var(--white); }
.footer-contact-row { margin-bottom: 0.875rem; }
.footer-contact-row label {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.35);
  display: block;
  margin-bottom: 0.2rem;
}
.footer-contact-row a, .footer-contact-row p {
  font-size: 0.9375rem;
  color: rgba(255,255,255,0.6);
  max-width: none;
  transition: color var(--ease);
}
.footer-contact-row a:hover { color: var(--white); }
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255,255,255,0.1);
  flex-wrap: wrap;
}
.footer-bottom p { font-size: 0.8125rem; color: rgba(255,255,255,0.35); max-width: none; }
.footer-legal { display: flex; gap: 1.5rem; }
.footer-legal a { font-size: 0.8125rem; color: rgba(255,255,255,0.35); transition: color var(--ease); }
.footer-legal a:hover { color: rgba(255,255,255,0.65); }

@media (max-width: 768px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
  .footer-brand { grid-column: 1 / -1; }
}
@media (max-width: 480px) {
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

/* ── Divider ── */
.divider {
  width: 44px;
  height: 3px;
  background: var(--navy-mid);
  border-radius: 2px;
  margin: 1.125rem 0 2rem;
}

/* ── 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;
}
.text-center { text-align: center; }
.text-muted { color: var(--text-muted); }
.mt-sm { margin-top: 1rem; }
.mt-md { margin-top: 1.5rem; }
.mt-lg { margin-top: 2.5rem; }
.mt-xl { margin-top: 4rem; }