/* Grundfarben und Maße */
:root {
  --bg: linear-gradient(135deg, #191a1f); /* NEU: Verlauf als Hintergrund */
  --fg: #fff; /* Helleres Schwarz für besseren Kontrast */
  --brand: #1a2f8a;
  --brand-2: #c861ee;
  --maxw: 72rem;
  --space: 1rem;
}

/* Grundlayout */
* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font: 16px/1.6 system-ui, Arial, sans-serif;
  color: var(--fg);
  background: var(--bg); /* NEU: Verlauf */
}

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

a {
  color: var(--brand);
  text-decoration: none;
}

a:focus,
button:focus,
input:focus,
textarea:focus {
  outline: 2px solid var(--brand);
  outline-offset: 2px;
}

.container {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--space);
}

/* Skip-Link */
.skip {
  position: absolute;
  left: -9999px;
}
.skip:focus {
  left: var(--space);
  top: var(--space);
  background: #fff;
  padding: .25rem .5rem;
  border: 2px solid var(--brand);
}

/* Kopfbereich */
.site-header {
  position: sticky;
  top: 0;
  background: #9999a0;
  border-bottom: 1px solid #9999a0;
}

.site-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: .75rem var(--space);
}

.brand {
  font-weight: bold;
}

.navlist {
  display: flex;
  gap: 1rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-toggle {
  display: none;
}

/* Hero-Bereich */
.hero {
  padding: 3rem 0;
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  color: #111;
}

.hero .container {
  display: grid;
  gap: 1.5rem;
  align-items: center;
}

.portrait {
  width: 160px;
  height: 160px;
  object-fit: cover;
  border-radius: 50%;
  border: 4px solid #fff;
}

/* Allgemeine Sektionen */
.section {
  padding: 2rem 0;
}

/* Lebenslauf */
.cv {
  display: grid;
  gap: 1rem;
}
.cv article {
  padding: 1rem;
  border: 1px solid #e5e7eb;
  border-radius: .75rem;
  background: #1a1a1a; /* Weißer Hintergrund für gute Lesbarkeit */
}

/* Fähigkeiten */
.skills {
  display: grid;
  gap: 1rem;
  padding: 0;
  list-style: none;
}

.skills li {
  display: grid;
  gap: .25rem;
}

.bar {
  height: .6rem;
  background: #e5e7eb;
  border-radius: 10px;
  overflow: hidden;
}

.bar span {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--brand), var(--brand-2));
  border-radius: 999px;
  transform: translateZ(0);
}

/* Projekte */
.cards {
  display: grid;
  gap: 1rem;
}

.card {
  padding: 1rem;
  border: 1px solid #e5e7eb;
  border-radius: .75rem;
  background: #1a1a1a; /* Weißer Hintergrund für Projekte */
  box-shadow: 0 4px 12px rgba(0,0,0,.05);
}

/* Kontaktformular */
.contact-form {
  display: grid;
  gap: .5rem;
  max-width: 32rem;
  background: #1a1a1a; /* Weißer Hintergrund für Formular */
  padding: 1rem;
  border-radius: .75rem;
  border: 2px solid #fff;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: .6rem 1rem;
  border-radius: .6rem;
  background: #111;
  color: #fff;
  font-weight: bold;
}

.btn:hover {
  opacity: .9;
}

/* Fußbereich */
.site-footer {
  padding: 1.5rem 0;
  border-top: 1px solid #e5e7eb;
  color: var(--fg);
  background: rgba(255, 255, 255, 0.5); /* Leicht transparenter Footer */
}

/* Mobile Navigation */
@media (max-width: 767px) {
  .nav-toggle {
    display: inline-block;
    padding: .4rem .7rem;
    border: 1px solid #e5e7eb;
    border-radius: .5rem;
    background: #fff;
  }

  .navlist {
    display: none;
    flex-direction: column;
    position: absolute;
    right: var(--space);
    top: 3rem;
    padding: .75rem;
    border: 1px solid #e5e7eb;
    border-radius: .75rem;
    background: #fff;
  }

  .navlist.is-open {
    display: flex;
  }
}

/* Desktop Layout */
@media (min-width: 768px) {
  .hero .container {
    grid-template-columns: 160px 1fr;
  }

  .cv {
    grid-template-columns: 1fr 1fr;
  }

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

/* Druckansicht */
@media print {
  .site-header,
  .site-footer,
  .navlist,
  .btn {
    display: none;
  }

  a {
    color: inherit;
    text-decoration: underline;
  }
}