:root{
  --bg:#0f1216; --panel:#171b21; --panel2:#1e232b; --line:#2a313b;
  --txt:#e6e9ee; --muted:#8b95a3; --accent:#c9a227; --accent2:#e0b84a;
  --danger:#e5484d; --ok:#3fb950; --warn:#d29922; --info:#4493f8;
}
*{box-sizing:border-box}
body{margin:0;font-family:system-ui,Segoe UI,Roboto,Arial,sans-serif;
  background:var(--bg);color:var(--txt);font-size:14px}
a{color:var(--accent2);text-decoration:none}
a:hover{text-decoration:underline}

/* Layout */
.layout{display:flex;min-height:100vh}
.sidebar{width:230px;background:var(--panel);border-right:1px solid var(--line);
  display:flex;flex-direction:column;padding:16px 12px}
.brand{padding:6px 8px 18px;font-weight:700;font-size:17px;color:var(--accent2)}
.brand img{max-width:100%;max-height:40px}
.sidebar nav{display:flex;flex-direction:column;gap:2px;flex:1}
.sidebar nav a{color:var(--txt);padding:9px 12px;border-radius:8px}
.sidebar nav a:hover{background:var(--panel2);text-decoration:none}
.sidebar nav a.active{background:var(--accent);color:#1a1a1a;font-weight:600}
.nav-group{color:var(--muted);text-transform:uppercase;font-size:11px;
  letter-spacing:.06em;margin:14px 12px 4px}
.sidebar-foot{border-top:1px solid var(--line);padding-top:12px;margin-top:8px;
  display:flex;align-items:center;gap:8px}
.foot-btn{display:flex;align-items:center;justify-content:center;width:38px;height:38px;
  border-radius:9px;color:var(--muted);flex:0 0 auto}
.foot-btn:hover{background:var(--panel2);color:var(--txt);text-decoration:none}
.foot-btn svg{width:19px;height:19px}
.foot-ava{display:flex;align-items:center;justify-content:center;width:30px;height:30px;
  border-radius:50%;background:var(--accent);color:#1a1a1a;font-weight:700;font-size:12px}
.foot-btn.foot-logout{margin-left:auto}
.foot-btn.foot-logout:hover{background:rgba(229,72,77,.15);color:var(--danger)}

/* Content */
.content{flex:1;padding:26px 32px;max-width:1100px}
h1{font-size:22px;margin:0 0 18px}
h2{font-size:17px;margin:24px 0 12px}

/* Cards / stats */
.cards{display:flex;gap:16px;flex-wrap:wrap}
.card{background:var(--panel);border:1px solid var(--line);border-radius:12px;
  padding:18px 20px;min-width:170px}
.card .num{font-size:30px;font-weight:700;color:var(--accent2)}
.card .lbl{color:var(--muted);margin-top:4px}

/* Tables */
table{width:100%;border-collapse:collapse;background:var(--panel);
  border:1px solid var(--line);border-radius:12px;overflow:hidden}
th,td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line)}
th{background:var(--panel2);color:var(--muted);font-weight:600;font-size:12px;
  text-transform:uppercase;letter-spacing:.04em}
tr:last-child td{border-bottom:none}

/* Forms */
form.stack{max-width:640px}
.field{margin-bottom:14px}
.field label{display:block;color:var(--muted);margin-bottom:5px}
input[type=text],input[type=email],input[type=password],input[type=date],
input[type=number],select,textarea{width:100%;padding:9px 11px;background:var(--panel2);
  border:1px solid var(--line);border-radius:8px;color:var(--txt);font-size:14px}
textarea{min-height:90px;resize:vertical}
.row{display:flex;gap:14px}.row>*{flex:1}
.check{display:flex;align-items:center;gap:8px}
.check input{width:auto}

/* Buttons */
.btn{display:inline-block;padding:9px 16px;border-radius:8px;border:none;
  background:var(--accent);color:#1a1a1a;font-weight:600;cursor:pointer;font-size:14px}
.btn:hover{background:var(--accent2);text-decoration:none}
.btn-ghost{background:transparent;border:1px solid var(--line);color:var(--txt)}
.btn-danger{background:var(--danger);color:#fff}
.btn-sm{padding:5px 10px;font-size:12px}
.toolbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;gap:12px}

/* Flash */
.flash{padding:11px 14px;border-radius:8px;margin-bottom:14px;border:1px solid}
.flash-success{background:rgba(63,185,80,.12);border-color:var(--ok)}
.flash-danger{background:rgba(229,72,77,.12);border-color:var(--danger)}
.flash-warning{background:rgba(210,153,34,.12);border-color:var(--warn)}
.flash-info{background:rgba(68,147,248,.12);border-color:var(--info)}

/* Auth */
.auth-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;
  background:radial-gradient(1200px 600px at 50% -10%,#1c2330,var(--bg))}
.auth-box{background:var(--panel);border:1px solid var(--line);border-radius:16px;
  padding:34px 32px;width:340px}
.auth-box h1{text-align:center;color:var(--accent2)}
.badge{display:inline-block;padding:2px 8px;border-radius:6px;font-size:12px;
  background:var(--panel2);border:1px solid var(--line);color:var(--muted)}
.badge.on{color:var(--ok);border-color:var(--ok)}
.perm-grid{display:grid;grid-template-columns:1fr 1fr;gap:6px 18px}
.muted{color:var(--muted)}

/* Mandanten-Switcher */
.tenant-switch{margin:0 4px 10px;border:1px solid var(--line);border-radius:8px;background:var(--panel2)}
.tenant-switch summary{list-style:none;cursor:pointer;padding:8px 10px;display:flex;flex-direction:column;gap:1px}
.tenant-switch summary::-webkit-details-marker{display:none}
.tenant-switch .ts-label{font-size:10px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted)}
.tenant-switch .ts-current{font-weight:600;color:var(--accent2)}
.tenant-switch[open] summary .ts-current::after{content:' ▾'}
.ts-menu{border-top:1px solid var(--line);padding:4px;max-height:240px;overflow:auto}
.ts-menu form{margin:0}
.ts-menu button{width:100%;text-align:left;background:transparent;border:none;color:var(--txt);padding:6px 8px;border-radius:6px;cursor:pointer;font-size:13px}
.ts-menu button:hover{background:var(--panel)}
.ts-menu button.active{background:var(--accent);color:#1a1a1a;font-weight:600}
.tenant-badge{margin:0 4px 10px;padding:6px 10px;border:1px solid var(--line);border-radius:8px;background:var(--panel2);color:var(--accent2);font-weight:600;font-size:13px}

/* Tab-Control */
.tabs{display:flex;gap:2px;border-bottom:1px solid var(--line);margin-bottom:20px}
.tabs .tab{background:transparent;border:none;border-bottom:2px solid transparent;color:var(--muted);padding:10px 18px;cursor:pointer;font-size:14px;font-weight:600}
.tabs .tab:hover{color:var(--txt)}
.tabs .tab.active{color:var(--accent2);border-bottom-color:var(--accent)}
.tab-panel{display:none}

/* Settings-eigene Sidebar */
.sidebar nav a.nav-back{color:var(--muted);font-size:13px;margin-bottom:6px}
.sidebar nav a.nav-back:hover{color:var(--txt)}