/* GC50plus Theme (abgeleitet aus Screenshot) */
:root{
  --gc-bg:#686363; --gc-panel:rgba(255,255,255,.06); --gc-panel2:rgba(255,255,255,.10);
  --gc-text:#fff; --gc-muted:rgba(255,255,255,.7); --gc-border:rgba(255,255,255,.18);
  --gc-line:rgba(230,230,230,.65); --gc-red:#c52d2d; --gc-sidebar:#979798;
  --gc-radius:14px; --gc-shadow:0 10px 30px rgba(0,0,0,.25);
}
html,body{height:100%} body{margin:0;background:var(--gc-bg);color:var(--gc-text);
  font-family:system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;}
.gc-layout{display:grid;grid-template-columns:280px 1fr;min-height:100vh}
.gc-sidebar{background:var(--gc-sidebar);padding:18px 16px;box-shadow:inset -1px 0 0 rgba(0,0,0,.15)}
.gc-nav-toggle{
  display:none;
  border:1px solid rgba(255,255,255,.45);
  background:rgba(255,255,255,.10);
  color:#fff;
  font-weight:800;
  border-radius:10px;
  padding:8px 12px;
  cursor:pointer;
}
.gc-mobile-topbar{display:none}
.gc-mobile-logo{
  display:inline-block;
  text-decoration:none;
  color:#fff;
  background:var(--gc-red);
  border-radius:10px;
  padding:8px 12px;
  font-weight:900;
}
.gc-sidebar .logo{background:var(--gc-red);color:#fff;padding:18px 16px;margin:-18px -16px 18px;
  font-weight:900;font-size:34px;text-shadow:0 2px 0 rgba(0,0,0,.25);display:block;text-decoration:none}
.gc-sidebar a{display:block;color:#f3f3f3;text-decoration:none;padding:10px;border-radius:10px;font-weight:800}
.gc-sidebar a:hover{background:rgba(255,255,255,.10)}
.gc-sidebar a.sub{margin-left:14px;font-weight:700;font-size:.93rem;padding:8px 10px}
.gc-sidebar a.active{
  background:var(--gc-red);
  border:1px solid rgba(255,255,255,.55);
  color:#fff;
  font-weight:900;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.12);
}
.gc-main{padding:26px 20px} .gc-container{max-width:1200px;margin:0 auto}
h1,h2{margin:0 0 10px;font-family:"Comic Sans MS","Trebuchet MS","Segoe Print","Bradley Hand",cursive;
  font-weight:900;text-shadow:0 2px 0 rgba(0,0,0,.35)}
h1{font-size:54px} h2{font-size:34px}
@media(max-width:900px){h1{font-size:38px}h2{font-size:26px}}
.gc-hr{height:1px;background:var(--gc-line);border:0;margin:18px 0}
.gc-card{background:var(--gc-panel);border:1px solid var(--gc-border);border-radius:var(--gc-radius);
  box-shadow:var(--gc-shadow);padding:16px}
.gc-card.soft{background:var(--gc-panel2)} .gc-muted{color:var(--gc-muted)}
.gc-top{display:flex;gap:10px;align-items:center;flex-wrap:wrap} .gc-spacer{flex:1}
.gc-btn{display:inline-block;border:1px solid rgba(255,255,255,.20);background:rgba(255,255,255,.10);color:#fff;
  padding:.62rem .95rem;border-radius:12px;text-decoration:none;cursor:pointer}
.gc-btn:hover{background:rgba(255,255,255,.16)} .gc-btn.primary{background:var(--gc-red);border-color:rgba(0,0,0,.15)}
.gc-btn.danger{background:#8f1e1e}
label{display:block;margin:.7rem 0 .25rem;color:var(--gc-muted)}
input,select,textarea{width:100%;box-sizing:border-box;padding:.62rem .75rem;border-radius:12px;
  border:1px solid rgba(255,255,255,.22);background:rgba(0,0,0,.18);color:#fff;outline:none;
  font:inherit;font-size:1.05rem;line-height:1.25;min-height:44px}
input:focus,select:focus,textarea:focus{border-color:rgba(255,255,255,.45);box-shadow:0 0 0 3px rgba(197,45,45,.25)}
input[type="checkbox"]{
  width:20px;
  min-height:20px;
  height:20px;
  padding:0;
  margin-right:8px;
  vertical-align:middle;
  accent-color:#1f7aec;
}
table{width:100%;border-collapse:collapse;margin-top:14px;background:rgba(0,0,0,.10);border:1px solid rgba(255,255,255,.18);
  border-radius:12px;overflow:hidden}
th,td{padding:11px 10px;border-bottom:1px solid rgba(255,255,255,.12);text-align:left;vertical-align:top}
th{background:rgba(255,255,255,.08);color:rgba(255,255,255,.85);font-weight:900}
tr:hover td{background:rgba(255,255,255,.05)}
.gc-redbar{background:var(--gc-red);padding:10px 14px;border-radius:10px;font-weight:900;
  text-shadow:0 1px 0 rgba(0,0,0,.25);box-shadow:0 10px 30px rgba(0,0,0,.20)}
.gc-kpi{font-size:34px;font-weight:900;margin-top:4px}
.gc-grid{display:grid;gap:12px} .gc-grid.kpi{grid-template-columns:repeat(5,minmax(0,1fr))}
@media(max-width:1200px){.gc-grid.kpi{grid-template-columns:repeat(2,minmax(0,1fr))}}
.gc-grid.bday{grid-template-columns:repeat(3,minmax(0,1fr))}
@media(max-width:1200px){.gc-grid.bday{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:700px){.gc-grid.bday{grid-template-columns:1fr}}
.gc-link{color:rgba(255,255,255,.92);text-decoration:none;border-bottom:1px dotted rgba(255,255,255,.35)}
.gc-link:hover{border-bottom-color:rgba(255,255,255,.8)}
.gc-chip{display:inline-flex;align-items:center;justify-content:center;width:22px;height:22px;border-radius:999px;
  font-weight:900;margin-right:8px;border:1px solid rgba(255,255,255,.2)}
.gc-chip.paid{background:#29c46b} .gc-chip.unpaid{background:#e25555}

@media(max-width:900px){
  .gc-layout{grid-template-columns:1fr;display:block}
  .gc-mobile-topbar{
    display:flex;
    align-items:center;
    gap:10px;
    position:sticky;
    top:0;
    z-index:1200;
    background:var(--gc-sidebar);
    border-bottom:1px solid rgba(255,255,255,.16);
    padding:10px;
  }
  .gc-sidebar{
    position:fixed;
    left:0;
    top:0;
    bottom:0;
    width:min(84vw,290px);
    min-height:100vh;
    overflow:auto;
    z-index:1300;
    padding:12px 10px 14px;
    box-shadow:0 14px 32px rgba(0,0,0,.35);
    transform:translateX(-108%);
    transition:transform .22s ease;
  }
  .gc-sidebar.mobile-open{transform:translateX(0)}
  .gc-sidebar .logo{
    margin:0;
    font-size:22px;
    padding:10px 12px;
    border-radius:10px;
    margin-bottom:12px;
  }
  .gc-nav-toggle{display:inline-block;min-height:40px}
  .gc-sidebar a{
    display:block;
    margin:0 0 8px 0;
    padding:10px 12px;
    font-size:15px;
    line-height:1.2;
    border-radius:10px;
    min-height:42px;
  }
  .gc-sidebar a.sub{margin-left:12px;padding:9px 11px}
  .gc-sidebar hr{margin:10px 0}
  .gc-sidebar.mobile-collapsed .gc-nav-links{display:block}
  .gc-main{padding:14px 10px}
}