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

body {
  font-family: system-ui, sans-serif;
  font-size: 1rem;
  line-height: 1.6;
  color: #1a1a2e;
  background: #fff;
}

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

/* === Layout === */
.container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* === Nav === */
nav {
  background: #1a1a2e;
  position: sticky;
  top: 0;
  z-index: 10;
}

nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
}

.nav-logo {
  font-weight: 700;
  font-size: 1.1rem;
  color: #fff;
}

.nav-links {
  display: flex;
  gap: 0.25rem;
}

.nav-links a {
  color: rgba(255,255,255,.7);
  padding: 0.35rem 0.8rem;
  border-radius: 6px;
  font-size: 0.9rem;
}

.nav-links a:hover,
.nav-links a.active { color: #fff; background: rgba(255,255,255,.1); }

/* === Abschnitte === */
section { padding: 3.5rem 0; }

.bg-white  { background: #fff; }
.bg-gray   { background: #f4f5f7; }
.bg-dark   { background: #1a1a2e; color: #fff; }
.bg-dark p { color: rgba(255,255,255,.6); }

section h2 {
  font-size: 1.6rem;
  margin-bottom: 0.5rem;
}

section p {
  color: #555;
  max-width: 580px;
  margin-bottom: 1.5rem;
}

/* === Phasen-Kreise === */
.circles {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  justify-content: center;
  margin-top: 2rem;
}

.circle-link {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6rem;
}

.circle {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  font-weight: 700;
  color: #fff;
}

.circle-link span {
  font-size: 0.85rem;
  color: #555;
  font-weight: 600;
  text-align: center;
}

.c1 { background: #4a7fc1; }
.c2 { background: #4aab6d; }
.c3 { background: #d49a2d; }
.c4 { background: #8f5ec1; }
.c5 { background: #c1524a; }

/* === Karten === */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1.25rem;
}

.card {
  background: #fff;
  border-radius: 10px;
  padding: 1.5rem;
  border: 1px solid #e0e3ea;
}

.card h3 { font-size: 1rem; margin-bottom: 0.35rem; }
.card p  { font-size: 0.9rem; margin: 0; }

/* === Phase-Header === */
.phase-header {
  padding: 3.5rem 0 2.5rem;
  color: #fff;
  text-align: center;
}

.phase-header h1 { font-size: 2rem; margin-bottom: 0.4rem; }
.phase-header p  { color: rgba(255,255,255,.7); max-width: 480px; margin: 0 auto; }

.ph1 { background: #4a7fc1; }
.ph2 { background: #4aab6d; }
.ph3 { background: #d49a2d; }
.ph4 { background: #8f5ec1; }
.ph5 { background: #c1524a; }

/* === Profil === */
.profile-header {
  background: #1a1a2e;
  color: #fff;
  padding: 3.5rem 0;
}

.profile-inner {
  display: flex;
  align-items: center;
  gap: 2rem;
  flex-wrap: wrap;
}

.avatar {
  width: 90px;
  height: 90px;
  border-radius: 50%;
  background: rgba(255,255,255,.12);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  flex-shrink: 0;
}

.profile-info h1 { font-size: 1.6rem; }
.profile-info p  { color: rgba(255,255,255,.55); margin: 0; }

/* === Footer === */
footer {
  background: #1a1a2e;
  color: rgba(255,255,255,.4);
  text-align: center;
  padding: 1.5rem 0;
  font-size: 0.85rem;
}

/* === Responsive === */
@media (max-width: 600px) {
  .circle { width: 80px; height: 80px; font-size: 1.4rem; }
}