/* ============================================================
   Justen iT GmbH – Corporate Stylesheet
   Design: Corporate & Trustworthy | Colors: Classic Blue + KI Purple
   ============================================================ */

/* ---------- CSS Custom Properties ---------- */
:root {
  --blue-900: #0A1F3C;
  --blue-800: #0F2A4A;
  --blue-700: #1A3F6F;
  --blue-600: #1B4F8A;
  --blue-500: #2363A8;
  --blue-400: #3A7FCC;
  --blue-300: #5B9FE8;
  --blue-100: #D6E8FA;
  --blue-50:  #EEF5FC;

  /* KI / AI Accent Colors — leicht entsättigt (-15%) */
  --ai-900: #130A2A;
  --ai-800: #22154E;
  --ai-700: #3B1F7F;
  --ai-600: #5730B3;
  --ai-500: #7958E2;
  --ai-400: #9880EE;
  --ai-300: #B5A8F5;
  --ai-100: #E5E0FB;
  --ai-50:  #EFECFD;

  --gray-900: #111827;
  --gray-700: #374151;
  --gray-600: #4B5563;
  --gray-400: #9CA3AF;
  --gray-200: #E5E7EB;
  --gray-100: #F3F4F6;
  --gray-50:  #F9FAFB;

  --white: #FFFFFF;
  --accent: #F97316;    /* Orange accent for CTAs */
  --accent-dark: #C2540A;

  --shadow-sm: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.05);
  --shadow-md: 0 4px 12px rgba(0,0,0,.10), 0 2px 6px rgba(0,0,0,.07);
  --shadow-lg: 0 12px 32px rgba(0,0,0,.12), 0 4px 12px rgba(0,0,0,.08);
  --shadow-blue: 0 8px 24px rgba(27,79,138,.25);

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  --transition: 0.25s ease;
  --nav-height: 72px;
}

/* ---------- Reset & Base ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
  color: var(--gray-700);
  background: var(--white);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a  { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* ---------- Typography ---------- */
h1, h2, h3, h4, h5 {
  font-weight: 700;
  line-height: 1.25;
  color: var(--gray-900);
  letter-spacing: -0.02em;
}
h1 { font-size: clamp(2rem, 4.5vw, 3.25rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.4rem); }
h3 { font-size: clamp(1.1rem, 2vw, 1.4rem); }
h4 { font-size: 1.05rem; }

p { color: var(--gray-600); max-width: 68ch; }

.text-center { text-align: center; }
.text-center p { margin-left: auto; margin-right: auto; }

/* ---------- Layout Helpers ---------- */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 96px 0;
}
.section--gray { background: var(--gray-50); }
.section--blue { background: var(--blue-800); }
.section--dark { background: var(--blue-900); }

.section-label {
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--blue-400);
  margin-bottom: 12px;
}
.section-label--light { color: var(--blue-300); }

.section-title {
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--gray-600);
  margin-bottom: 56px;
}
.section-subtitle--light { color: var(--blue-100); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius-md);
  font-size: .95rem;
  font-weight: 600;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all var(--transition);
  white-space: nowrap;
  text-decoration: none;
}

.btn-primary {
  background: var(--blue-600);
  color: var(--white);
  border-color: var(--blue-600);
}
.btn-primary:hover {
  background: var(--blue-700);
  border-color: var(--blue-700);
  transform: translateY(-1px);
  box-shadow: var(--shadow-blue);
}

.btn-outline {
  background: transparent;
  color: var(--blue-600);
  border-color: var(--blue-400);
}
.btn-outline:hover {
  background: var(--blue-50);
  border-color: var(--blue-600);
  transform: translateY(-1px);
}

.btn-outline-white {
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,.4);
}
.btn-outline-white:hover {
  background: rgba(255,255,255,.1);
  border-color: var(--white);
}

.btn-accent {
  background: var(--accent);
  color: var(--white);
  border-color: var(--accent);
}
.btn-accent:hover {
  background: var(--accent-dark);
  border-color: var(--accent-dark);
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(249,115,22,.3);
}

.btn-sm { padding: 10px 20px; font-size: .875rem; }
.btn-lg { padding: 18px 36px; font-size: 1rem; }

/* ---------- Navigation ---------- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  background: rgba(255,255,255,.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--gray-200);
  transition: box-shadow var(--transition), background var(--transition);
}
.navbar.scrolled {
  box-shadow: var(--shadow-md);
}

.navbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.navbar__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.2rem;
  color: var(--blue-800);
  text-decoration: none;
  flex-shrink: 0;
}
.navbar__logo .logo-icon {
  width: 38px;
  height: 38px;
  background: var(--blue-600);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: .85rem;
  font-weight: 800;
  letter-spacing: -.02em;
}
.navbar__logo .logo-img {
  height: 52px;
  width: auto;
  display: block;
  flex-shrink: 0;
}
.navbar__logo .logo-name {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}
.navbar__logo .logo-name span:first-child {
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--blue-900);
  letter-spacing: -.02em;
}
.navbar__logo .logo-name span:last-child {
  font-size: .65rem;
  font-weight: 500;
  color: var(--gray-400);
  letter-spacing: .05em;
  text-transform: uppercase;
}

.navbar__nav {
  display: flex;
  align-items: center;
  gap: 4px;
}
.navbar__nav a {
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: .9rem;
  font-weight: 500;
  color: var(--gray-700);
  transition: all var(--transition);
}
.navbar__nav a:hover,
.navbar__nav a.active {
  color: var(--blue-600);
  background: var(--blue-50);
}
.navbar__nav a.active { font-weight: 600; }

.navbar__actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Language Toggle */
.lang-toggle {
  display: flex;
  align-items: center;
  background: var(--gray-100);
  border-radius: 20px;
  padding: 3px;
  gap: 2px;
}
.lang-btn {
  padding: 4px 12px;
  border-radius: 16px;
  font-size: .8rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  background: transparent;
  color: var(--gray-600);
  transition: all var(--transition);
}
.lang-btn.active {
  background: var(--blue-600);
  color: var(--white);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 8px;
  border-radius: var(--radius-sm);
  transition: background var(--transition);
}
.hamburger:hover { background: var(--gray-100); }
.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--gray-700);
  border-radius: 2px;
  transition: all var(--transition);
}
.hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* Mobile Nav */
.mobile-nav {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  background: var(--white);
  border-bottom: 1px solid var(--gray-200);
  padding: 16px 24px 24px;
  z-index: 999;
  box-shadow: var(--shadow-md);
  flex-direction: column;
  gap: 4px;
}
.mobile-nav.open { display: flex; }
.mobile-nav a {
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-weight: 500;
  color: var(--gray-700);
  transition: all var(--transition);
}
.mobile-nav a:hover, .mobile-nav a.active {
  color: var(--blue-600);
  background: var(--blue-50);
}
.mobile-nav .lang-toggle {
  margin-top: 12px;
  width: fit-content;
}

/* Page body offset for fixed nav */
body { padding-top: var(--nav-height); }

/* ---------- Hero ---------- */
.hero {
  padding: 100px 0 80px;
  background: linear-gradient(135deg, var(--blue-900) 0%, var(--blue-700) 60%, var(--blue-500) 100%);
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.hero__inner {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.2);
  border-radius: 20px;
  padding: 6px 14px;
  font-size: .8rem;
  font-weight: 600;
  color: var(--blue-100);
  letter-spacing: .06em;
  text-transform: uppercase;
  margin-bottom: 24px;
}
.hero__badge::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #4ADE80;
  flex-shrink: 0;
}

.hero__title {
  color: var(--white);
  margin-bottom: 20px;
  font-size: clamp(2.2rem, 4.5vw, 3.4rem);
}
.hero__title span {
  background: linear-gradient(90deg, var(--blue-300), #7DD3FC);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__text {
  color: var(--blue-100);
  font-size: 1.1rem;
  max-width: 52ch;
  margin-bottom: 36px;
  line-height: 1.75;
}

.hero__actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero__visual {
  display: flex;
  justify-content: center;
}

.hero__card-stack {
  position: relative;
  width: 100%;
  max-width: 420px;
}

.stats-card {
  background: rgba(255,255,255,.08);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,.15);
  border-radius: var(--radius-lg);
  padding: 28px;
  color: white;
}
.stats-card__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.stat-item__value {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--white);
  line-height: 1;
}
.stat-item__label {
  font-size: .8rem;
  color: var(--blue-200, #BFDBFE);
  margin-top: 4px;
  font-weight: 500;
}

.cert-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid rgba(255,255,255,.1);
}
.cert-badge {
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.2);
  border-radius: 6px;
  padding: 5px 10px;
  font-size: .75rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: .04em;
}

/* ---------- Cards ---------- */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 28px;
}

.cards-grid--3 { grid-template-columns: repeat(3, 1fr); }
.cards-grid--2 { grid-template-columns: repeat(2, 1fr); }

.card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: all var(--transition);
}
.card:hover {
  border-color: var(--blue-300);
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
}

.card__icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: var(--blue-50);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 1.4rem;
}
.card__icon svg {
  width: 26px;
  height: 26px;
  stroke: var(--blue-600);
  fill: none;
}

.card__title {
  margin-bottom: 10px;
  color: var(--gray-900);
}

.card__text {
  font-size: .92rem;
  line-height: 1.7;
  color: var(--gray-600);
  max-width: none;
}

.card--featured {
  background: var(--blue-600);
  border-color: var(--blue-600);
}
.card--featured .card__icon {
  background: rgba(255,255,255,.15);
}
.card--featured .card__icon svg { stroke: white; }
.card--featured .card__title { color: white; }
.card--featured .card__text { color: var(--blue-100); }

/* ---------- Service Blocks (detail page) ---------- */
.service-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: center;
  padding: 72px 0;
  border-bottom: 1px solid var(--gray-200);
}
.service-block:last-child { border-bottom: none; }
.service-block:nth-child(even) .service-block__visual { order: -1; }

.service-block__label {
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--blue-500);
  margin-bottom: 12px;
}

.service-block__title { margin-bottom: 16px; }

.service-block__text {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--gray-600);
  margin-bottom: 28px;
  max-width: none;
}

.feature-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 32px;
}
.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: .9rem;
  color: var(--gray-700);
  font-weight: 500;
}
.feature-list li::before {
  content: '';
  width: 18px;
  height: 18px;
  min-width: 18px;
  border-radius: 50%;
  background: var(--blue-100);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='8' viewBox='0 0 10 8'%3E%3Cpath d='M1 4l2.5 2.5L9 1' stroke='%231B4F8A' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round' fill='none'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center;
  margin-top: 2px;
}

.service-visual-box {
  background: linear-gradient(135deg, var(--blue-50) 0%, var(--blue-100) 100%);
  border-radius: var(--radius-xl);
  padding: 40px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.tech-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--white);
  border: 1px solid var(--blue-200, #BFDBFE);
  border-radius: var(--radius-md);
  padding: 10px 16px;
  font-size: .875rem;
  font-weight: 600;
  color: var(--blue-700);
  box-shadow: var(--shadow-sm);
}
.tech-tag__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--blue-500);
  flex-shrink: 0;
}

/* ---------- About Page ---------- */
.profile-grid {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 72px;
  align-items: start;
}

.profile-card {
  background: linear-gradient(145deg, var(--blue-800) 0%, var(--blue-700) 100%);
  border-radius: var(--radius-xl);
  padding: 40px 32px;
  color: var(--white);
  position: sticky;
  top: calc(var(--nav-height) + 24px);
}

.profile-card__avatar {
  width: 96px;
  height: 96px;
  border-radius: 50%;
  background: rgba(255,255,255,.15);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.2rem;
  font-weight: 800;
  color: white;
  margin: 0 auto 20px;
  border: 3px solid rgba(255,255,255,.2);
}

.profile-card__name {
  text-align: center;
  font-size: 1.3rem;
  font-weight: 700;
  color: white;
  margin-bottom: 4px;
}
.profile-card__role {
  text-align: center;
  font-size: .85rem;
  color: var(--blue-200, #BFDBFE);
  margin-bottom: 28px;
}

.profile-card__info { display: flex; flex-direction: column; gap: 14px; }

.info-row {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: .85rem;
}
.info-row__icon {
  font-size: 1rem;
  opacity: .8;
  flex-shrink: 0;
  margin-top: 1px;
}
.info-row__value { color: var(--blue-100); line-height: 1.5; }
.info-row__value a { color: var(--blue-200, #BFDBFE); }
.info-row__value a:hover { color: var(--white); text-decoration: underline; }

.certs-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,.12);
}
.cert-chip {
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.2);
  border-radius: 6px;
  padding: 5px 12px;
  font-size: .75rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: .04em;
}

.about-content { display: flex; flex-direction: column; gap: 48px; }

.about-block__title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--blue-100);
}

.timeline { display: flex; flex-direction: column; gap: 0; }
.timeline-item {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 24px;
  position: relative;
  padding-bottom: 32px;
}
.timeline-item:last-child { padding-bottom: 0; }
.timeline-item::before {
  content: '';
  position: absolute;
  left: 120px;
  top: 10px;
  bottom: 0;
  width: 2px;
  background: var(--gray-200);
  transform: translateX(11px);
}
.timeline-item:last-child::before { display: none; }

.timeline-date {
  font-size: .8rem;
  font-weight: 700;
  color: var(--blue-500);
  padding-top: 4px;
  text-align: right;
}

.timeline-body {
  padding-left: 32px;
  position: relative;
}
.timeline-body::before {
  content: '';
  position: absolute;
  left: -1px;
  top: 5px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--blue-500);
  border: 3px solid var(--white);
  box-shadow: 0 0 0 2px var(--blue-400);
}

.timeline-role { font-weight: 700; color: var(--gray-900); margin-bottom: 2px; }
.timeline-org { font-size: .875rem; color: var(--blue-600); font-weight: 600; margin-bottom: 8px; }
.timeline-desc { font-size: .875rem; color: var(--gray-600); line-height: 1.7; max-width: none; }

.skills-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.skill-area {
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  padding: 20px;
}
.skill-area__title {
  font-size: .85rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 12px;
}
.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.skill-tag {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: 20px;
  padding: 4px 10px;
  font-size: .75rem;
  font-weight: 600;
  color: var(--gray-700);
}

/* ---------- Contact Page ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 64px;
  align-items: start;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}
.contact-item__icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--blue-50);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.contact-item__icon svg { width:24px; height:24px; stroke:var(--blue-600); fill:none; stroke-width:1.8; }
.contact-item__label {
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--gray-400);
  margin-bottom: 4px;
}
.contact-item__value {
  font-weight: 600;
  color: var(--gray-900);
  font-size: .95rem;
}
.contact-item__value a {
  color: var(--blue-600);
}
.contact-item__value a:hover {
  text-decoration: underline;
}

/* Contact Form */
.contact-form {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-xl);
  padding: 40px;
  box-shadow: var(--shadow-md);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form-group { display: flex; flex-direction: column; gap: 6px; margin-bottom: 20px; }
.form-group:last-of-type { margin-bottom: 24px; }

.form-label {
  font-size: .85rem;
  font-weight: 600;
  color: var(--gray-700);
}
.form-label span { color: var(--blue-500); }

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--gray-200);
  border-radius: var(--radius-md);
  font-size: .95rem;
  color: var(--gray-900);
  background: var(--white);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
  font-family: inherit;
}
.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  border-color: var(--blue-400);
  box-shadow: 0 0 0 3px rgba(59,130,246,.12);
}
.form-textarea { resize: vertical; min-height: 130px; }

/* ---------- Footer ---------- */
.footer {
  background: var(--blue-900);
  color: var(--blue-100);
  padding: 64px 0 32px;
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,.08);
  margin-bottom: 32px;
}

.footer__brand .logo-text {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--white);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.footer__brand .logo-icon {
  width: 34px;
  height: 34px;
  background: var(--blue-600);
  border-radius: 7px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .8rem;
  font-weight: 800;
  color: white;
}
.footer__brand .logo-text {
  font-size: 1.15rem;
  font-weight: 800;
  color: white;
  letter-spacing: -.02em;
  margin-bottom: 12px;
}
.footer__brand p {
  font-size: .875rem;
  color: var(--blue-200, #BFDBFE);
  line-height: 1.7;
  max-width: 30ch;
}

.footer__col h4 {
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--white);
  margin-bottom: 16px;
}
.footer__col ul { display: flex; flex-direction: column; gap: 10px; }
.footer__col ul li a {
  font-size: .875rem;
  color: var(--blue-200, #BFDBFE);
  transition: color var(--transition);
}
.footer__col ul li a:hover { color: var(--white); }

.footer__contact p {
  font-size: .875rem;
  color: var(--blue-200, #BFDBFE);
  line-height: 2;
  max-width: none;
}
.footer__contact a {
  color: var(--blue-300);
}
.footer__contact a:hover { color: var(--white); text-decoration: underline; }

.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}
.footer__bottom p {
  font-size: .8rem;
  color: var(--blue-300);
  max-width: none;
}
.footer__legal {
  display: flex;
  gap: 20px;
}
.footer__legal a {
  font-size: .8rem;
  color: var(--blue-300);
  transition: color var(--transition);
}
.footer__legal a:hover { color: var(--white); }

/* ---------- Page Hero (inner pages) ---------- */
.page-hero {
  background: linear-gradient(135deg, var(--blue-900) 0%, var(--blue-700) 100%);
  padding: 72px 0;
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.page-hero__inner { position: relative; }
.page-hero__eyebrow {
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--blue-300);
  margin-bottom: 12px;
}
.page-hero h1 { color: var(--white); margin-bottom: 16px; font-size: clamp(1.8rem, 3vw, 2.6rem); }
.page-hero p { color: var(--blue-100); font-size: 1.05rem; max-width: 60ch; }

/* ---------- Trust Strip ---------- */
.trust-strip {
  background: var(--gray-50);
  border-top: 1px solid var(--gray-200);
  border-bottom: 1px solid var(--gray-200);
  padding: 24px 0;
}
.trust-strip__inner {
  display: flex;
  align-items: center;
  gap: 40px;
  flex-wrap: wrap;
  justify-content: center;
}
.trust-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: .85rem;
  font-weight: 600;
  color: var(--gray-600);
}
.trust-item__icon { font-size: 1.1rem; display:flex; align-items:center; }
.trust-item__icon svg { width:16px; height:16px; stroke:var(--blue-500); fill:none; stroke-width:2; }

/* ---------- CTA Section ---------- */
.cta-section {
  background: linear-gradient(135deg, var(--blue-700) 0%, var(--blue-500) 100%);
  padding: 80px 0;
  text-align: center;
}
.cta-section h2 { color: var(--white); margin-bottom: 16px; }
.cta-section p { color: var(--blue-100); font-size: 1.05rem; margin: 0 auto 36px; max-width: 55ch; }
.cta-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* ---------- Animations ---------- */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

.animate-in {
  animation: fadeInUp .6s ease both;
}
.animate-in:nth-child(2) { animation-delay: .1s; }
.animate-in:nth-child(3) { animation-delay: .2s; }
.animate-in:nth-child(4) { animation-delay: .3s; }

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .5s ease, transform .5s ease;
}
.reveal.visible {
  opacity: 1;
  transform: none;
}

/* ---------- Utilities ---------- */
.mb-4  { margin-bottom: 16px; }
.mb-6  { margin-bottom: 24px; }
.mb-8  { margin-bottom: 32px; }
.mb-12 { margin-bottom: 48px; }
.mt-6  { margin-top: 24px; }
.mt-8  { margin-top: 32px; }
.flex  { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.gap-2 { gap: 8px; }
.gap-4 { gap: 16px; }

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .cards-grid--3 { grid-template-columns: repeat(2, 1fr); }
  .footer__grid  { grid-template-columns: 1fr 1fr; }
  .profile-grid  { grid-template-columns: 1fr; }
  .profile-card  { position: static; }
  .service-block { grid-template-columns: 1fr; gap: 40px; }
  .service-block:nth-child(even) .service-block__visual { order: 0; }
}

@media (max-width: 768px) {
  .section { padding: 64px 0; }
  .navbar__nav  { display: none; }
  .navbar__actions .btn { display: none; }
  .hamburger    { display: flex; }
  .hero { padding: 64px 0 56px; }
  .hero__inner  { grid-template-columns: 1fr; gap: 40px; }
  .hero__visual { display: none; }
  .cards-grid--3 { grid-template-columns: 1fr; }
  .cards-grid--2 { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .form-row     { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr; gap: 32px; }
  .footer__bottom { flex-direction: column; text-align: center; }
  .skills-grid  { grid-template-columns: 1fr; }
  .trust-strip__inner { gap: 20px; }
  .cta-actions  { flex-direction: column; align-items: center; }
}

@media (max-width: 480px) {
  h1 { font-size: 1.9rem; }
  h2 { font-size: 1.5rem; }
  .section { padding: 48px 0; }
  .contact-form { padding: 28px 20px; }
  .profile-card { padding: 28px 20px; }
}


/* ============================================================
   KI / AI SOLUTIONS – Extended Styles
   ============================================================ */

/* ---------- Navbar: KI-Highlight Link ---------- */
.navbar__nav a.nav-ai {
  color: var(--ai-600);
  font-weight: 600;
}
.navbar__nav a.nav-ai:hover,
.navbar__nav a.nav-ai.active {
  color: var(--ai-700);
  background: var(--ai-50);
}

/* ---------- Hub Hero (main landing page) ---------- */
.hub-hero {
  padding: 100px 0 0;
  background: linear-gradient(150deg, var(--blue-900) 0%, #0E1D42 55%, #1E1858 100%);
  position: relative;
  overflow: hidden;
}
.hub-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 80% 60% at 70% 40%, rgba(100,75,210,.09) 0%, transparent 60%);
  pointer-events: none;
}
.hub-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.025'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.hub-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  padding-bottom: 80px;
}

.hub-hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(139,92,246,.2);
  border: 1px solid rgba(139,92,246,.4);
  border-radius: 20px;
  padding: 6px 14px;
  font-size: .8rem;
  font-weight: 700;
  color: var(--ai-300);
  letter-spacing: .08em;
  text-transform: uppercase;
  margin-bottom: 24px;
}
.hub-hero__eyebrow::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--ai-400);
  animation: pulse-dot 2s infinite;
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: .5; transform: scale(.7); }
}

.hub-hero__title {
  color: var(--white);
  font-size: clamp(2.2rem, 4.5vw, 3.4rem);
  margin-bottom: 20px;
  line-height: 1.2;
}
.hub-hero__title .highlight-blue {
  background: linear-gradient(90deg, var(--blue-300), #7DD3FC);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.hub-hero__title .highlight-ai {
  background: linear-gradient(90deg, var(--ai-300), #C8A4F0);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}

.hub-hero__text {
  color: rgba(255,255,255,.75);
  font-size: 1.1rem;
  line-height: 1.8;
  max-width: 52ch;
  margin-bottom: 36px;
}

.hub-hero__actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* ---------- Hub bottom wave ---------- */
.hub-hero__wave {
  position: relative;
  z-index: 1;
  line-height: 0;
}
.hub-hero__wave svg { display: block; width: 100%; }

/* ---------- Hub floating visual ---------- */
.hub-visual {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.hub-card {
  background: rgba(255,255,255,.16);
  backdrop-filter: blur(16px);
  border: 1px solid rgba(255,255,255,.28);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  color: white;
  transition: transform .3s ease, border-color .3s ease, background .3s ease, box-shadow .3s ease;
  box-shadow: 0 4px 20px rgba(0,0,0,.18);
  cursor: pointer;
  text-decoration: none;
  display: block;
}
.hub-card:hover {
  transform: translateX(6px);
  border-color: rgba(255,255,255,.5);
  background: rgba(255,255,255,.24);
  box-shadow: 0 8px 28px rgba(0,0,0,.25);
}

.hub-card--ai {
  border-color: rgba(121,88,226,.45);
  background: rgba(87,48,179,.22);
}
.hub-card--ai:hover { border-color: rgba(121,88,226,.7); background: rgba(87,48,179,.32); }

.hub-card__row {
  display: flex;
  align-items: center;
  gap: 14px;
}
.hub-card__icon {
  width: 40px; height: 40px;
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}
.hub-card__icon--blue { background: rgba(59,130,246,.25); }
.hub-card__icon--ai   { background: rgba(139,92,246,.3); }
.hub-card__icon--green{ background: rgba(34,197,94,.2); }
.hub-card__icon svg { width:20px; height:20px; fill:none; stroke-width:2; }
.hub-card__icon--blue svg  { stroke: #93C5FD; }
.hub-card__icon--green svg { stroke: #4ADE80; }
.hub-card__icon--ai svg    { stroke: var(--ai-300); }

.hub-card__label {
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .09em;
  text-transform: uppercase;
  color: rgba(255,255,255,.65);
  margin-bottom: 3px;
  max-width: none;
}
.hub-card__value {
  font-size: .95rem;
  font-weight: 600;
  color: #ffffff;
  max-width: none;
}
.hub-card__text { flex: 1; min-width: 0; }
.hub-card__desc {
  font-size: .82rem;
  color: rgba(255,255,255,.72);
  margin-top: 4px;
  max-width: none;
}
.hub-card__arrow {
  width: 20px; height: 20px;
  flex-shrink: 0;
  stroke: rgba(255,255,255,.55);
  stroke-width: 2;
  fill: none;
  transition: transform .3s ease;
}
.hub-card:hover .hub-card__arrow { transform: translateX(3px); }
.hub-card--ai .hub-card__arrow { stroke: var(--ai-300); }

/* ---------- Pillar Section (3 columns) ---------- */
.pillars-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.pillar {
  padding: 48px 36px;
  background: var(--white);
  border-right: 1px solid var(--gray-200);
  position: relative;
  transition: background var(--transition), transform var(--transition);
  display: flex;
  flex-direction: column;
}
.pillar:last-child { border-right: none; }

.pillar:hover { background: var(--gray-50); }

.pillar--ai {
  background: linear-gradient(160deg, var(--ai-50) 0%, #fff 60%);
}
.pillar--ai:hover { background: var(--ai-50); }

.pillar__icon {
  width: 56px; height: 56px;
  border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 24px;
  flex-shrink: 0;
}
.pillar__icon--blue  { background: var(--blue-50); }
.pillar__icon--red   { background: #FEF2F2; }
.pillar__icon--ai    { background: var(--ai-100); }
.pillar__icon svg { width:28px; height:28px; fill:none; stroke-width:1.8; }
.pillar__icon--blue svg { stroke: var(--blue-600); }
.pillar__icon--red svg  { stroke: #DC2626; }
.pillar__icon--ai svg   { stroke: var(--ai-600); }

.pillar__tag {
  display: inline-block;
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  padding: 3px 10px;
  border-radius: 20px;
  margin-bottom: 16px;
  width: fit-content;
}
.pillar__tag--blue { background: var(--blue-100); color: var(--blue-700); }
.pillar__tag--red  { background: #FEE2E2; color: #991B1B; }
.pillar__tag--ai   { background: var(--ai-100); color: var(--ai-700); }

.pillar__title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 12px;
  line-height: 1.3;
}

.pillar__text {
  font-size: .9rem;
  color: var(--gray-600);
  line-height: 1.75;
  flex-grow: 1;
  margin-bottom: 28px;
  max-width: none;
}

.pillar__list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 28px;
}
.pillar__list li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: .85rem;
  font-weight: 500;
  color: var(--gray-700);
}
.pillar__list li::before {
  content: '→';
  font-size: .75rem;
  color: var(--blue-400);
  font-weight: 700;
  flex-shrink: 0;
}
.pillar--ai .pillar__list li::before { color: var(--ai-500); }

.pillar__cta {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: .875rem;
  font-weight: 700;
  color: var(--blue-600);
  transition: gap var(--transition), color var(--transition);
  text-decoration: none;
}
.pillar--ai .pillar__cta { color: var(--ai-600); }
.pillar__cta:hover { gap: 12px; }

/* ---------- KI Section (spotlight) ---------- */
.ki-section {
  background: linear-gradient(135deg, var(--ai-900) 0%, var(--ai-800) 50%, #0F2A4A 100%);
  padding: 96px 0;
  position: relative;
  overflow: hidden;
}
.ki-section::before {
  content: '';
  position: absolute;
  top: -40%;
  right: -10%;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(139,92,246,.2) 0%, transparent 70%);
  pointer-events: none;
}

.ki-section__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: center;
}

.ki-section__label {
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ai-300);
  margin-bottom: 14px;
}

.ki-section__title {
  color: var(--white);
  margin-bottom: 20px;
  font-size: clamp(1.8rem, 3vw, 2.6rem);
}
.ki-section__title span {
  background: linear-gradient(90deg, var(--ai-300), #C8A4F0);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}

.ki-section__text {
  color: rgba(255,255,255,.7);
  font-size: 1rem;
  line-height: 1.8;
  margin-bottom: 36px;
  max-width: none;
}

.ki-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 36px;
}
.ki-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  background: rgba(139,92,246,.2);
  border: 1px solid rgba(139,92,246,.4);
  border-radius: 20px;
  font-size: .8rem;
  font-weight: 600;
  color: var(--ai-200, #DDD6FE);
}

/* ---------- KI Workflow Visual ---------- */
.workflow-visual {
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
}

.workflow-step {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 20px;
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  transition: background var(--transition), border-color var(--transition);
  cursor: default;
}
.workflow-step:hover {
  background: rgba(139,92,246,.15);
  border-color: rgba(139,92,246,.4);
}

.workflow-step__num {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: rgba(139,92,246,.3);
  border: 1px solid rgba(139,92,246,.5);
  display: flex; align-items: center; justify-content: center;
  font-size: .8rem;
  font-weight: 800;
  color: var(--ai-200, #DDD6FE);
  flex-shrink: 0;
}

.workflow-step__content h4 {
  color: white;
  font-size: .95rem;
  margin-bottom: 4px;
}
.workflow-step__content p {
  font-size: .82rem;
  color: rgba(255,255,255,.55);
  line-height: 1.6;
  max-width: none;
}

.workflow-connector {
  width: 2px;
  height: 16px;
  background: linear-gradient(180deg, rgba(139,92,246,.5) 0%, transparent 100%);
  margin: 0 0 0 37px;
}

/* ---------- KI Service Cards ---------- */
.ki-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 32px;
  position: relative;
  overflow: hidden;
  transition: all var(--transition);
}
.ki-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--ai-600), var(--ai-400));
  opacity: 0;
  transition: opacity var(--transition);
}
.ki-card:hover {
  border-color: var(--ai-300);
  box-shadow: 0 12px 32px rgba(107,33,200,.12), 0 4px 12px rgba(0,0,0,.06);
  transform: translateY(-3px);
}
.ki-card:hover::before { opacity: 1; }

.ki-card__icon {
  width: 52px; height: 52px;
  border-radius: var(--radius-md);
  background: var(--ai-50);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 20px;
}
.ki-card__icon svg { width:26px; height:26px; stroke:var(--ai-600); fill:none; stroke-width:1.8; }

.ki-card__title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 10px;
}

.ki-card__text {
  font-size: .88rem;
  color: var(--gray-600);
  line-height: 1.75;
  max-width: none;
  margin-bottom: 20px;
}

.ki-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.ki-tag {
  background: var(--ai-50);
  border: 1px solid var(--ai-100);
  border-radius: 20px;
  padding: 3px 10px;
  font-size: .72rem;
  font-weight: 600;
  color: var(--ai-700);
}

/* ---------- btn-ai ---------- */
.btn-ai {
  background: linear-gradient(135deg, var(--ai-600) 0%, var(--ai-500) 100%);
  color: var(--white);
  border: none;
}
.btn-ai:hover {
  background: linear-gradient(135deg, var(--ai-700) 0%, var(--ai-600) 100%);
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(87,48,179,.25);
}

/* ---------- Use-Case Block ---------- */
.usecase-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.usecase-card {
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  padding: 28px;
  transition: all var(--transition);
}
.usecase-card:hover {
  border-color: var(--ai-300);
  background: var(--ai-50);
  box-shadow: var(--shadow-md);
}
.usecase-card__emoji { font-size: 1.8rem; margin-bottom: 12px; line-height: 1; }
.usecase-card__emoji svg { width:36px; height:36px; stroke:var(--ai-500); fill:none; stroke-width:1.6; }
.usecase-card__title { font-size: 1rem; font-weight: 700; margin-bottom: 8px; color: var(--gray-900); }
.usecase-card__text  { font-size: .85rem; color: var(--gray-600); line-height: 1.7; max-width: none; }

/* ---------- Section: page-hero for KI ---------- */
.page-hero--ai {
  background: linear-gradient(135deg, var(--ai-900) 0%, var(--ai-800) 50%, var(--blue-900) 100%);
}
.page-hero--ai .page-hero__eyebrow { color: var(--ai-300); }

/* ---------- Hub Nav CTA für KI ---------- */
.btn-ai-outline {
  background: transparent;
  color: var(--ai-400);
  border: 2px solid rgba(121,88,226,.35);
}
.btn-ai-outline:hover {
  background: rgba(121,88,226,.08);
  border-color: var(--ai-400);
  color: var(--ai-300);
}

/* ---------- Responsive Ergänzungen ---------- */
@media (max-width: 1024px) {
  .pillars-grid { grid-template-columns: 1fr; }
  .pillar { border-right: none; border-bottom: 1px solid var(--gray-200); }
  .pillar:last-child { border-bottom: none; }
  .ki-section__inner { grid-template-columns: 1fr; gap: 48px; }
  .hub-hero__inner { grid-template-columns: 1fr; gap: 40px; }
  .usecase-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .hub-hero { padding-top: 64px; }
  .hub-visual { display: flex; }
  .ki-section { padding: 64px 0; }
}