:root{
  --bg:#e9f3f2; --sidebar:#0e2a2b; --sidebar-2:#12383a;
  --card:#ffffff; --ink:#143331; --muted:#6b7f7d;
  --accent:#0f3d3a; --soft:#6f9a97; --soft-2:#5c8a86;
  --border:#d9e7e5; --gold:#8a6d3b; --tabbar:#d6ebe8;
  --danger:#b23c3c; --radius:14px;
  --font:'Segoe UI',system-ui,-apple-system,Roboto,Arial,sans-serif;
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);font-size:14px;
  display:flex;flex-direction:column;min-height:100vh}
.app{display:flex;gap:18px;padding:18px;flex:1;align-items:flex-start}

/* ---------- sidebar ---------- */
.sidebar{width:330px;flex:0 0 330px;background:var(--sidebar);color:#eaf5f3;
  border-radius:var(--radius);padding:16px;position:sticky;top:18px}
.sb-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.sb-title{font-weight:600;font-size:15px;display:flex;align-items:center;gap:8px}
.sb-ico{opacity:.8}
.sb-add{width:34px;height:34px;border:none;border-radius:9px;background:var(--sidebar-2);
  color:#eaf5f3;font-size:20px;cursor:pointer}
.sb-add:hover{background:#164648}
.sb-search input{width:100%;padding:11px 12px;border-radius:9px;border:1px solid #24494a;
  background:#0c2324;color:#eaf5f3;font-size:13px}
.sb-search input::placeholder{color:#7fa3a1}
.sb-filters{display:grid;grid-template-columns:1fr 1fr;gap:9px;margin:12px 0}
.sb-filters select{padding:9px 10px;border-radius:9px;border:1px solid #24494a;
  background:#0c2324;color:#dcefec;font-size:12.5px}
.sb-list{display:flex;flex-direction:column;gap:10px;margin-top:6px}
.set-item{background:#0b2122;border:1px solid #1d4344;border-radius:11px;padding:12px;cursor:pointer;
  display:flex;justify-content:space-between;gap:8px;transition:border-color .12s,background .12s}
.set-item:hover{border-color:#2f6163}
.set-item.active{background:#12383a;border-color:#3a7173}
.set-item .si-name{font-weight:600;color:#f2fbf9;margin-bottom:4px;line-height:1.25}
.set-item .si-sub{color:#9fc0bd;font-size:12px}
.set-item .si-crumb{color:#7fa3a1;font-size:11.5px;margin-top:2px}
.si-badge{align-self:flex-start;font-size:11px;padding:3px 9px;border-radius:20px;
  background:#0f3d3a;color:#bfe8e2;white-space:nowrap}
.sb-empty{color:#8fb2af;font-size:13px;padding:8px 2px}

/* ---------- detail ---------- */
.detail{flex:1;display:flex;flex-direction:column;gap:16px;min-width:0}
.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);
  box-shadow:0 1px 2px rgba(20,51,49,.04);padding:22px}
.head-top{display:flex;justify-content:space-between;gap:20px;align-items:flex-start}
h1{font-size:22px;margin:0 0 10px;font-weight:650}
.head-meta{color:var(--muted);font-size:12.5px;margin-top:4px}
.badge{display:inline-block;background:var(--accent);color:#eafaf6;font-size:12px;
  padding:4px 12px;border-radius:7px;font-weight:600}
.badge.draft{background:#7a6a3c}.badge.inactive{background:#5b6b69}
.head-actions{display:flex;flex-direction:column;gap:9px;align-items:flex-end}
.pill-select{padding:8px 12px;border:1px solid var(--border);border-radius:9px;background:#fff;
  color:var(--ink);font-size:13px}
.btn{border:none;border-radius:9px;padding:9px 16px;font-size:13px;cursor:pointer;font-weight:600}
.btn-dark{background:var(--accent);color:#eafaf6}
.btn-dark:hover{background:#0b302e}
.btn-dark.on{background:#7a3b3b}
.btn-soft{background:var(--soft);color:#fff}
.btn-soft:hover{background:var(--soft-2)}
.btn:disabled{opacity:.5;cursor:not-allowed}
.btn-ghost{background:#eef5f4;color:var(--ink);border:1px solid var(--border)}
.btn-line{background:#fff;border:1px solid var(--border);color:var(--ink);font-weight:500}

.validation{margin-top:18px;border-left:4px solid var(--accent);background:#f4faf8;
  border-radius:0 8px 8px 0;padding:12px 16px;display:flex;justify-content:space-between;align-items:center}
.validation.has-error{border-left-color:var(--danger);background:#fbf3f3}
.v-title{color:var(--gold);font-size:12.5px;margin-bottom:2px}
.v-body{font-weight:600}
.v-ok{background:var(--accent);color:#eafaf6;font-size:12px;font-weight:700;padding:4px 12px;border-radius:7px}
.validation.has-error .v-ok{background:var(--danger)}

/* ---------- tabs ---------- */
.tabs{display:flex;background:var(--tabbar);border-radius:11px;padding:6px;gap:4px;flex-wrap:wrap}
.tabs button{flex:1;border:none;background:transparent;padding:10px 8px;border-radius:8px;
  font-size:13.5px;font-weight:600;color:#274d4b;cursor:pointer;min-width:90px}
.tabs button.active{background:#fff;box-shadow:0 1px 2px rgba(0,0,0,.06)}

/* ---------- tab content ---------- */
.tab-card h2{font-size:17px;margin:0 0 4px}
.tab-lead{color:var(--muted);margin:0 0 20px;font-size:13.5px}
.field-label{font-weight:600;font-size:13px;margin-bottom:6px;display:block}
.field-label .req{color:var(--danger)}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.grid-3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:22px}
input[type=text],input[type=number],select,textarea{
  width:100%;padding:11px 12px;border:1px solid var(--border);border-radius:9px;
  font-size:13.5px;font-family:inherit;color:var(--ink);background:#fff}
input:disabled,select:disabled,textarea:disabled{background:#f3f7f6;color:#8aa4a1}
textarea{min-height:120px;resize:vertical}
.stored{border-left:4px solid var(--accent);padding:10px 14px;color:#4a2f6b;
  background:#f7f5fb;border-radius:0 8px 8px 0;margin-top:14px;font-size:13.5px}

.subcard{border:1px solid var(--border);border-radius:12px;padding:18px;margin-top:16px}
.row-actions{display:flex;gap:9px;margin-top:12px;flex-wrap:wrap}

/* tables */
table{width:100%;border-collapse:collapse;margin-top:8px}
th{text-align:left;font-size:12.5px;color:#274d4b;padding:10px 12px;border-bottom:1px solid var(--border);font-weight:700}
td{padding:12px;border-bottom:1px solid #eef4f3;font-size:13.5px}
tr:last-child td{border-bottom:none}
.muted{color:var(--muted)}
.tag{font-size:11.5px;padding:3px 9px;border-radius:20px;background:#dceeeb;color:#255}
.tag.primary{background:var(--accent);color:#eafaf6}
.empty{color:var(--muted);text-align:center;padding:60px 20px}
.pflicht{float:right;background:#dceeeb;color:#255;font-size:11.5px;padding:4px 10px;border-radius:20px}
.text-pair{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.toast{position:fixed;bottom:22px;left:50%;transform:translateX(-50%);
  background:var(--accent);color:#eafaf6;padding:12px 20px;border-radius:10px;
  box-shadow:0 6px 20px rgba(0,0,0,.18);z-index:50;font-size:13.5px}
.toast.err{background:var(--danger)}

@media(max-width:880px){
  .app{flex-direction:column}
  .sidebar{width:100%;flex:1 1 auto;position:static}
  .grid-2,.grid-3,.text-pair{grid-template-columns:1fr}
}

/* ---------- account footer (sidebar) ---------- */
.sb-user{display:flex;align-items:center;justify-content:space-between;gap:10px;
  margin-top:16px;padding-top:14px;border-top:1px solid #1d4344}
.sb-user-name{font-weight:600;color:#f2fbf9;font-size:13.5px}
.sb-user-role{color:#9fc0bd;font-size:11.5px;margin-top:2px}
.sb-logout{color:#bfe8e2;font-size:12.5px;text-decoration:none;border:1px solid #2f6163;
  padding:6px 12px;border-radius:8px;white-space:nowrap}
.sb-logout:hover{background:#12383a}

/* ---------- login page ---------- */
.login-body{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:100vh;margin:0}
.login-card{background:#fff;border:1px solid var(--border);border-radius:18px;
  box-shadow:0 8px 30px rgba(20,51,49,.10);padding:40px 38px;width:360px;text-align:center}
.login-logo{width:56px;height:56px;border-radius:14px;background:var(--accent);color:#eafaf6;
  font-weight:800;font-size:20px;display:flex;align-items:center;justify-content:center;margin:0 auto 18px}
.login-card h1{font-size:20px;margin:0 0 6px}
.login-sub{color:var(--muted);font-size:13.5px;margin:0 0 22px}
.login-btn{display:block;width:100%;text-align:center;text-decoration:none;padding:12px}
.login-error{background:#fbf3f3;border:1px solid #eabcbc;color:var(--danger);
  border-radius:9px;padding:10px 12px;font-size:12.5px;margin-bottom:16px;text-align:left}

/* ---------- app header + footer ---------- */
.topbar{display:flex;align-items:center;justify-content:space-between;
  background:var(--sidebar);color:#eaf5f3;padding:14px 22px}
.topbar-brand{display:flex;align-items:center;gap:14px}
.topbar-logo{width:44px;height:44px;border-radius:11px;background:#12383a;color:#eafaf6;
  font-weight:800;font-size:15px;letter-spacing:.5px;display:flex;align-items:center;justify-content:center}
.topbar-titles{line-height:1.22}
.topbar-title{font-size:19px;font-weight:700;letter-spacing:.3px}
.topbar-sub{font-size:12.5px;color:#9fc0bd;margin-top:2px}
.footer{text-align:center;color:var(--muted);font-size:12.5px;padding:16px;
  border-top:1px solid var(--border)}

/* brand additions on the login screen */
.login-brand{color:var(--ink);font-weight:600;font-size:13px;margin:0 0 4px}
.login-footer{position:fixed;bottom:16px;left:0;right:0;text-align:center;
  color:var(--muted);font-size:12px}

@media(max-width:880px){
  .topbar{padding:12px 16px}
  .topbar-sub{font-size:11.5px}
}

/* ---------- Dateien tab: list + preview ---------- */
.files-wrap{display:flex;gap:16px;align-items:flex-start}
.files-list{flex:0 0 300px;display:flex;flex-direction:column;gap:10px;max-height:560px;overflow:auto}
.file-row{border:1px solid var(--border);border-radius:11px;padding:12px;cursor:pointer;
  display:flex;justify-content:space-between;gap:10px;transition:border-color .12s,background .12s}
.file-row:hover{border-color:var(--soft)}
.file-row.active{border-color:var(--accent);background:#f4faf8}
.file-row-label{font-weight:600;font-size:13.5px}
.file-row-sub{color:var(--muted);font-size:12px;margin-top:2px;word-break:break-all}
.file-row-meta{color:var(--muted);font-size:11.5px;margin-top:4px}
.file-row-tags{display:flex;flex-direction:column;gap:6px;align-items:flex-end;white-space:nowrap}
.files-preview{flex:1;min-width:0;border:1px solid var(--border);border-radius:12px;
  background:#fbfdfd;min-height:440px;display:flex;flex-direction:column}
.file-ph{margin:auto;color:var(--muted);font-size:13.5px;padding:30px;text-align:center}
.file-bar{display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:12px 14px;border-bottom:1px solid var(--border)}
.file-bar-name{font-weight:600;font-size:13px;word-break:break-all}
.file-view{flex:1;display:flex;align-items:center;justify-content:center;padding:14px;min-height:0}
.file-img{max-width:100%;max-height:540px;border-radius:8px;object-fit:contain}
.file-frame{width:100%;height:560px;border:none;border-radius:8px;background:#fff}
@media(max-width:880px){
  .files-wrap{flex-direction:column}
  .files-list{flex:1 1 auto;width:100%;max-height:none}
  .files-preview{width:100%}
}

/* ---------- Dateien tab: upload ---------- */
.upload-card{border:1px solid var(--border);border-radius:12px;padding:16px;margin-bottom:16px;background:#fbfdfd}
.upload-row{display:flex;align-items:center;gap:12px;margin-top:14px;flex-wrap:wrap}
.upload-row input[type=file]{flex:1;min-width:220px;font-size:13px}
.upload-hint{color:var(--muted);font-size:12px}
.upload-locked{border:1px dashed var(--border);border-radius:12px;padding:14px 16px;margin-bottom:16px;
  color:var(--muted);font-size:13px;background:#f7fafa}
.checkbox{display:inline-flex;align-items:center;gap:8px;font-size:13.5px;font-weight:500;padding-bottom:10px}
.checkbox input{width:auto}
.file-del{padding:5px 10px;font-size:12px;margin-top:2px}