/* ============================================================
   Variables & Reset
   ============================================================ */
:root {
  --clr-bg:           #ffffff;
  --clr-surface:      #f4f7fb;
  --clr-border:       #dce5f0;
  --clr-txt:          #1e2d45;
  --clr-muted:        #5a6e88;
  --clr-accent:       #1a6bc8;
  --clr-accent-dark:  #1356a6;
  --clr-accent-light: #e6f0fb;
  --radius:           0.5rem;
  --shadow-sm:        0 1px 3px rgba(0,0,0,.07);
  --shadow:           0 4px 20px rgba(0,0,0,.08);
  --transition:       0.2s ease;
  --container:        1100px;
  --font:             -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--clr-txt);
  background: var(--clr-bg);
}

img { max-width: 100%; height: auto; display: block; }
a   { color: var(--clr-accent); text-decoration: none; }
a:hover { color: var(--clr-accent-dark); }
ul, ol { list-style: none; }

/* ============================================================
   Layout
   ============================================================ */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: 1.5rem;
}

.section { padding: 5rem 0; }
.section--gray { background: var(--clr-surface); }

.section__header {
  text-align: center;
  margin-bottom: 3rem;
}

.section__title {
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.section__subtitle {
  color: var(--clr-muted);
  font-size: 1.05rem;
}

/* ============================================================
   Typography
   ============================================================ */
h1, h2, h3 { line-height: 1.2; font-weight: 700; }
p { margin-bottom: 1rem; }
p:last-child { margin-bottom: 0; }

.link {
  color: var(--clr-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.link:hover { color: var(--clr-accent-dark); }

/* ============================================================
   Buttons
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius);
  font-size: 1rem;
  font-weight: 600;
  border: 2px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
  white-space: nowrap;
}

.btn--primary {
  background: var(--clr-accent);
  color: #fff;
  border-color: var(--clr-accent);
}
.btn--primary:hover {
  background: var(--clr-accent-dark);
  border-color: var(--clr-accent-dark);
  color: #fff;
}

.btn--outline {
  background: transparent;
  color: var(--clr-accent);
  border-color: var(--clr-accent);
}
.btn--outline:hover {
  background: var(--clr-accent);
  color: #fff;
}

.btn--full { width: 100%; }

/* ============================================================
   Header / Navigation
   ============================================================ */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--clr-border);
  transition: box-shadow var(--transition);
}
.header.scrolled { box-shadow: var(--shadow-sm); }

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4rem;
}

.nav__logo { display: flex; align-items: center; }
.nav__logo-img { height: 2.25rem; width: auto; }

.nav__menu {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav__link {
  color: var(--clr-txt);
  font-weight: 500;
  font-size: 0.95rem;
  transition: color var(--transition);
}
.nav__link:hover { color: var(--clr-accent); }

.nav__link--cta {
  background: var(--clr-accent);
  color: #fff;
  padding: 0.4rem 1.1rem;
  border-radius: var(--radius);
}
.nav__link--cta:hover {
  background: var(--clr-accent-dark);
  color: #fff;
}

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.25rem;
}
.nav__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--clr-txt);
  border-radius: 2px;
  transition: all var(--transition);
}

/* ============================================================
   Hero
   ============================================================ */
.hero {
  padding: 5rem 0 4rem;
  background: linear-gradient(135deg, #fff 55%, var(--clr-accent-light) 100%);
  border-bottom: 1px solid var(--clr-border);
}

.hero__inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 3rem;
  align-items: center;
}

.hero__title {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 1rem;
}

.hero__subtitle {
  font-size: 1.125rem;
  color: var(--clr-muted);
  margin-bottom: 2rem;
  max-width: 480px;
}

.hero__actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.hero__logo-img {
  width: 210px;
  height: auto;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

/* ============================================================
   About
   ============================================================ */
.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

.about__text p {
  color: var(--clr-muted);
  font-size: 1.05rem;
}
.about__text p strong { color: var(--clr-txt); }

.about__highlights {
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
}

.highlight {
  display: flex;
  align-items: center;
  gap: 0.875rem;
  padding: 1rem 1.25rem;
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  font-weight: 500;
  font-size: 0.95rem;
}

.highlight::before {
  content: '';
  display: block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--clr-accent);
  flex-shrink: 0;
}

/* ============================================================
   Cards (Services)
   ============================================================ */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1.25rem;
}

.card {
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  padding: 1.75rem;
  transition: box-shadow var(--transition), transform var(--transition);
}
.card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-3px);
}

.card__badge {
  display: inline-block;
  width: 2.5rem;
  height: 2.5rem;
  background: var(--clr-accent-light);
  border-radius: var(--radius);
  margin-bottom: 1rem;
}

.card__title {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.card__text {
  color: var(--clr-muted);
  font-size: 0.9rem;
  line-height: 1.65;
}

/* ============================================================
   Portfolio
   ============================================================ */
.portfolio__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.25rem;
  margin-bottom: 1.25rem;
}

.portfolio__card {
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: box-shadow var(--transition);
  background: var(--clr-bg);
}
.portfolio__card:hover { box-shadow: var(--shadow); }

.portfolio__thumb {
  height: 180px;
  background: linear-gradient(135deg, var(--clr-accent-light) 0%, #dbeafe 100%);
  display: flex;
  align-items: center;
  justify-content: center;
}

.portfolio__thumb-label {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--clr-accent);
  opacity: 0.7;
}

.portfolio__info { padding: 1.25rem; }

.portfolio__title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.375rem;
}

.portfolio__desc {
  font-size: 0.875rem;
  color: var(--clr-muted);
  margin-bottom: 0.75rem;
}

.portfolio__tags { display: flex; flex-wrap: wrap; gap: 0.375rem; }

.portfolio__tag {
  display: inline-block;
  background: var(--clr-accent-light);
  color: var(--clr-accent);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.2rem 0.6rem;
  border-radius: 99px;
}

.portfolio__note {
  text-align: center;
  color: var(--clr-muted);
  font-size: 0.875rem;
  font-style: italic;
}

/* ============================================================
   Contact
   ============================================================ */
.contact__grid {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 3rem;
  align-items: start;
}

.form__group { margin-bottom: 1.25rem; }

.form__group--check {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
}

.form__label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 0.375rem;
}

.form__label--check {
  font-size: 0.85rem;
  font-weight: 400;
  color: var(--clr-muted);
  margin-bottom: 0;
  line-height: 1.55;
}

.form__required { color: #dc2626; }

.form__input,
.form__textarea {
  width: 100%;
  padding: 0.625rem 0.875rem;
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  font-family: var(--font);
  font-size: 1rem;
  color: var(--clr-txt);
  background: var(--clr-bg);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.form__input:focus,
.form__textarea:focus {
  outline: none;
  border-color: var(--clr-accent);
  box-shadow: 0 0 0 3px rgba(29,78,216,.12);
}

.form__textarea { resize: vertical; min-height: 130px; }

.form__checkbox {
  flex-shrink: 0;
  margin-top: 0.2rem;
  width: 1rem;
  height: 1rem;
  accent-color: var(--clr-accent);
  cursor: pointer;
}

.form__status {
  display: none;
  margin-top: 1rem;
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  font-size: 0.875rem;
}
.form__status.success {
  display: block;
  background: #dcfce7;
  color: #166534;
  border: 1px solid #bbf7d0;
}
.form__status.error {
  display: block;
  background: #fee2e2;
  color: #991b1b;
  border: 1px solid #fecaca;
}

.contact__info-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
}

.contact__list { margin-bottom: 1.25rem; }

.contact__item {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
  margin-bottom: 1rem;
  font-size: 0.9rem;
  color: var(--clr-muted);
}

.contact__item-label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--clr-muted);
  margin-bottom: 0.125rem;
}

.contact__item-value {
  color: var(--clr-txt);
  font-size: 0.9rem;
}

.contact__block {
  padding: 1.25rem;
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  margin-bottom: 0.875rem;
}

.contact__note {
  font-size: 0.8rem;
  color: var(--clr-muted);
  font-style: italic;
}

/* ============================================================
   Footer
   ============================================================ */
.footer {
  background: var(--clr-surface);
  border-top: 1px solid var(--clr-border);
  padding: 2rem 0;
}

.footer__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  text-align: center;
}

.footer__brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--clr-txt);
}

.footer__logo { height: 1.75rem; width: auto; }

.footer__nav { display: flex; gap: 1.5rem; }

.footer__link {
  color: var(--clr-muted);
  font-size: 0.875rem;
  transition: color var(--transition);
}
.footer__link:hover { color: var(--clr-accent); }

.footer__copy {
  font-size: 0.8rem;
  color: var(--clr-muted);
}

/* ============================================================
   Legal Pages (Impressum / Datenschutz)
   ============================================================ */
.page-hero {
  padding: 2.5rem 0;
  border-bottom: 1px solid var(--clr-border);
  background: var(--clr-surface);
}

.page-hero__back {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-size: 0.875rem;
  color: var(--clr-muted);
  margin-bottom: 0.75rem;
  transition: color var(--transition);
}
.page-hero__back:hover { color: var(--clr-accent); }

.page-hero__title {
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  font-weight: 800;
}

.legal-content {
  max-width: 720px;
  padding: 3rem 0 5rem;
}

.legal-content h2 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-top: 2.5rem;
  margin-bottom: 0.625rem;
  padding-top: 2.5rem;
  border-top: 1px solid var(--clr-border);
}
.legal-content h2:first-of-type {
  border-top: none;
  padding-top: 0;
  margin-top: 0;
}

.legal-content h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-top: 1.5rem;
  margin-bottom: 0.5rem;
}

.legal-content p { color: var(--clr-muted); margin-bottom: 0.75rem; }
.legal-content strong { color: var(--clr-txt); }

.legal-content ul {
  list-style: disc;
  padding-left: 1.5rem;
  margin-bottom: 0.75rem;
  color: var(--clr-muted);
}
.legal-content li { margin-bottom: 0.375rem; }
.legal-content a { color: var(--clr-accent); word-break: break-all; }
.legal-content a:hover { text-decoration: underline; }

.notice-box {
  background: #fefce8;
  border: 1px solid #fde68a;
  border-radius: var(--radius);
  padding: 0.875rem 1.1rem;
  margin: 1.25rem 0;
  font-size: 0.875rem;
  color: #92400e;
}

/* ============================================================
   404
   ============================================================ */
.not-found {
  text-align: center;
  padding: 6rem 1.5rem;
}
.not-found__code {
  font-size: clamp(5rem, 20vw, 9rem);
  font-weight: 800;
  color: var(--clr-border);
  line-height: 1;
  margin-bottom: 1rem;
}
.not-found__title {
  font-size: 1.5rem;
  margin-bottom: 0.75rem;
}
.not-found__text {
  color: var(--clr-muted);
  margin-bottom: 2rem;
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 768px) {
  .nav__toggle { display: flex; }

  .nav__menu {
    display: none;
    position: absolute;
    top: 4rem;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--clr-bg);
    border-bottom: 1px solid var(--clr-border);
    box-shadow: var(--shadow);
    padding: 0.5rem 0;
  }
  .nav__menu.open { display: flex; }

  .nav__link {
    display: block;
    padding: 0.75rem 1.5rem;
  }
  .nav__link--cta {
    background: none;
    color: var(--clr-accent);
    border-radius: 0;
  }

  .hero { padding: 3rem 0; }
  .hero__inner { grid-template-columns: 1fr; }
  .hero__logo { display: none; }

  .about__grid { grid-template-columns: 1fr; }
  .contact__grid { grid-template-columns: 1fr; }
  .section { padding: 3.5rem 0; }
}

@media (max-width: 480px) {
  .hero__actions { flex-direction: column; }
  .btn { width: 100%; }
}