:root{
  --teal-a:#0C3B3D;
  --teal-b:#1F6F68;
  --mint:#EAF4F2;
  --coral:#FF8A5B;
  --ink:#16302E;
  --muted:#6f8a86;
  --line:#DCEAE7;
  --white:#FFFFFF;
}
*{box-sizing:border-box;}
body{
  margin:0;
  font-family:'Plus Jakarta Sans',sans-serif;
  background:var(--mint);
  color:var(--ink);
  position:relative;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  top:-180px; right:-160px;
  width:520px;height:520px;
  background:radial-gradient(circle at 30% 30%,var(--teal-b),transparent 70%);
  opacity:.30;
  border-radius:50%;
  z-index:0;
  pointer-events:none;
}
a{color:inherit;}

/* Topbar */
.topbar{
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:1.6rem 3rem;
  position:relative;
  z-index:1;
  flex-wrap:wrap;
  gap:1rem;
}
.logo{
  font-weight:800;
  font-size:1.15rem;
  color:var(--teal-a);
  text-decoration:none;
}
.logo span{color:var(--coral);}
.tabs{
  display:flex;
  gap:.4rem;
  background:var(--white);
  padding:.35rem;
  border-radius:99px;
  box-shadow:0 6px 20px -12px rgba(12,59,61,.25);
}
.tabs a{
  text-decoration:none;
  color:#5b6f6c;
  font-size:.85rem;
  font-weight:600;
  padding:.5rem 1.1rem;
  border-radius:99px;
}
.tabs a.active{
  background:linear-gradient(120deg,var(--teal-a),var(--teal-b));
  color:var(--white);
}

main{
  position:relative;
  z-index:1;
  max-width:1100px;
  margin:0 auto;
  padding:1rem 1.5rem 4rem;
}
@media(min-width:640px){
  main{padding:1rem 3rem 4rem;}
}

/* Hero */
.hero{
  background:linear-gradient(120deg,var(--teal-a) 0%,var(--teal-b) 100%);
  border-radius:28px;
  padding:2.2rem 2rem;
  color:var(--white);
  display:flex;
  flex-wrap:wrap;
  gap:1rem;
  justify-content:space-between;
  align-items:center;
  margin-bottom:2rem;
}
.hero h1{font-size:1.6rem;margin:0 0 .4rem;font-weight:800;}
.hero p{margin:0;opacity:.85;font-size:.95rem;max-width:40ch;}

/* Buttons */
.btn{
  border:none;
  font-family:'Plus Jakarta Sans',sans-serif;
  font-weight:700;
  font-size:.88rem;
  border-radius:14px;
  padding:.8rem 1.4rem;
  cursor:pointer;
  display:inline-flex;
  align-items:center;
  gap:.4rem;
  text-decoration:none;
}
.btn-coral{background:var(--coral);color:var(--white);}
.btn-teal{background:linear-gradient(120deg,var(--teal-a),var(--teal-b));color:var(--white);}
.btn-ghost{background:var(--white);color:var(--teal-a);box-shadow:0 6px 16px -10px rgba(12,59,61,.3);}
.btn-small{padding:.45rem .9rem;font-size:.78rem;border-radius:10px;}
.btn:disabled{opacity:.5;cursor:not-allowed;}

/* Card grid (Gruppenübersicht) */
.grid{
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(280px,1fr));
  gap:1.2rem;
}
.card{
  background:var(--white);
  border-radius:20px;
  padding:1.3rem 1.4rem;
  box-shadow:0 12px 30px -20px rgba(12,59,61,.3);
  text-decoration:none;
  color:var(--ink);
  display:flex;
  flex-direction:column;
  gap:.55rem;
  transition:transform .15s ease, box-shadow .15s ease;
}
.card:hover{
  transform:translateY(-2px);
  box-shadow:0 16px 34px -18px rgba(12,59,61,.4);
}
.card-head{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:.6rem;
  margin-bottom:.3rem;
}
.card h3{margin:0;font-size:1.05rem;font-weight:700;}
.badge{
  font-size:.7rem;
  font-weight:700;
  padding:.3rem .6rem;
  border-radius:99px;
  background:var(--mint);
  color:var(--teal-a);
  white-space:nowrap;
}
.badge.warn{background:#FFE7DA;color:var(--coral);}
.badge.muted{background:#F0F0EC;color:var(--muted);}

.info-row{
  display:flex;
  align-items:center;
  gap:.5rem;
  font-size:.85rem;
  color:var(--ink);
}
.info-row .material-symbols-outlined{
  font-variation-settings:'FILL' 0,'wght' 400,'GRAD' 0,'opsz' 24;
  font-size:18px;
  color:var(--teal-b);
  flex-shrink:0;
}
.avatar{
  width:34px;height:34px;
  border-radius:50%;
  background:linear-gradient(135deg,var(--teal-b),var(--teal-a));
  color:var(--white);
  font-size:.75rem;
  font-weight:700;
  display:flex;align-items:center;justify-content:center;
  border:2px solid var(--white);
  margin-left:-10px;
}
.avatar:first-child{margin-left:0;}
.more{
  width:34px;height:34px;border-radius:50%;
  background:var(--mint);color:var(--teal-a);
  font-size:.7rem;font-weight:700;
  display:flex;align-items:center;justify-content:center;
  border:2px solid var(--white);margin-left:-10px;
}
.empty-state{
  background:var(--white);
  border-radius:20px;
  padding:3rem 2rem;
  text-align:center;
  color:var(--muted);
}
.empty-state strong{display:block;color:var(--ink);font-size:1.1rem;margin-bottom:.4rem;}

/* Sections (Gruppendetail) */
.section{
  background:var(--white);
  border-radius:20px;
  padding:1.6rem 1.7rem;
  margin-bottom:1.4rem;
  box-shadow:0 12px 30px -22px rgba(12,59,61,.3);
}
.section h2{
  font-size:1.05rem;
  margin:0 0 1rem;
  font-weight:700;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:1rem;
  flex-wrap:wrap;
}
.section h2 small{font-weight:500;font-size:.78rem;color:var(--muted);}

.back-link{
  display:inline-flex;
  align-items:center;
  gap:.35rem;
  font-size:.85rem;
  font-weight:600;
  color:var(--teal-a);
  text-decoration:none;
  margin-bottom:1.2rem;
}

/* Tables */
table.list{width:100%;border-collapse:collapse;}
table.list th{
  text-align:left;
  font-size:.72rem;
  text-transform:uppercase;
  letter-spacing:.06em;
  color:var(--muted);
  padding:.6rem .5rem;
  border-bottom:2px solid var(--line);
}
table.list td{
  padding:.7rem .5rem;
  border-bottom:1px solid var(--line);
  font-size:.88rem;
  vertical-align:middle;
}
table.list tr:last-child td{border-bottom:none;}
.exemplar-pill{
  display:inline-block;
  font-weight:700;
  font-size:.78rem;
  background:var(--mint);
  color:var(--teal-a);
  padding:.2rem .55rem;
  border-radius:8px;
}

/* Forms */
form.inline-form{
  display:flex;
  flex-wrap:wrap;
  gap:.8rem;
  align-items:flex-end;
}
.field{
  display:flex;
  flex-direction:column;
  gap:.35rem;
}
.field label{font-size:.75rem;font-weight:700;color:var(--teal-a);}
.field input,.field select{
  font-family:'Plus Jakarta Sans',sans-serif;
  padding:.6rem .8rem;
  border-radius:10px;
  border:1.5px solid var(--line);
  font-size:.88rem;
  background:var(--white);
  color:var(--ink);
  min-width:150px;
}
.field input:focus,.field select:focus{
  outline:none;
  border-color:var(--teal-b);
}
.hint{font-size:.8rem;color:var(--muted);margin-top:-.4rem;margin-bottom:1rem;}

/* Flash messages */
.flash{
  border-radius:14px;
  padding:.9rem 1.2rem;
  font-size:.88rem;
  font-weight:600;
  margin-bottom:1.2rem;
}
.flash.ok{background:#E4F3EE;color:#1F6F58;}
.flash.error{background:#FDEAE3;color:#B8532B;}

/* Modal */
.modal-overlay{
  position:fixed;inset:0;
  background:rgba(15,45,44,.45);
  display:none;
  align-items:center;
  justify-content:center;
  z-index:50;
  padding:1rem;
}
.modal-overlay.open{display:flex;}
.modal{
  background:var(--white);
  border-radius:22px;
  padding:1.8rem;
  width:100%;
  max-width:380px;
  box-shadow:0 30px 60px -20px rgba(12,59,61,.5);
}
.modal h3{margin:0 0 .3rem;font-size:1.2rem;font-weight:800;color:var(--teal-a);}
.modal p{margin:0 0 1.2rem;font-size:.85rem;color:var(--muted);}
.modal .field{width:100%;margin-bottom:1rem;}
.modal .field input{width:100%;}
.modal-actions{display:flex;justify-content:flex-end;gap:.6rem;margin-top:.4rem;}

@media(max-width:640px){
  .topbar{padding:1.2rem 1.2rem;}
  .tabs a{padding:.45rem .8rem;}
  .hero{padding:1.6rem 1.4rem;}
  form.inline-form{flex-direction:column;align-items:stretch;}
  .field input,.field select{min-width:0;}
}