:root{
  --pg-blue:#010d6e;
  --pg-cyan:#00b2fe;
  --pg-magenta:#d4004b;
  --pg-offwhite:#f6f3ee;
  --ink:#172033;
  --muted:#5f6b7a;
  --line:#d9e3ee;
  --soft:#eef8ff;
  --card:#fff;
  --good:#0a7a3d;
  --warn:#b24a00;
  --danger:#a10f32;
  --shadow:0 14px 35px rgba(1,13,110,.10);
  --radius:22px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;
  color:var(--ink);
  line-height:1.5;
  background:
    linear-gradient(90deg,rgba(0,178,254,.12) 1px,transparent 1px),
    linear-gradient(rgba(0,178,254,.12) 1px,transparent 1px),
    linear-gradient(180deg,#fff 0%,#f7fbff 48%,var(--pg-offwhite) 100%);
  background-size:32px 32px,32px 32px,auto;
}
a{color:var(--pg-blue)}
button,input,select,textarea{font:inherit}
.wrap{width:min(1180px,100%);margin:0 auto;padding-left:18px;padding-right:18px}
.site-header{
  color:#fff;
  padding:34px 0 28px;
  background:linear-gradient(135deg,var(--pg-blue),#043b91 58%,var(--pg-cyan));
  border-bottom:8px solid rgba(255,255,255,.74);
  box-shadow:0 15px 38px rgba(1,13,110,.18);
}
.hero{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(260px,.75fr);gap:22px;align-items:center}
h1{margin:0 0 8px;font-size:clamp(2rem,5vw,4rem);line-height:1.03;letter-spacing:-.04em}
.subtitle{margin:0;color:rgba(255,255,255,.9);font-size:clamp(1rem,2vw,1.22rem);max-width:820px}
.hero-note{background:rgba(255,255,255,.13);border:1px solid rgba(255,255,255,.28);border-radius:22px;padding:16px 18px;backdrop-filter:blur(8px);font-weight:780}
.hero-note small{display:block;margin-top:5px;color:rgba(255,255,255,.82);font-weight:600}
main.wrap{padding-top:28px;padding-bottom:58px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:clamp(18px,3vw,28px);margin:0 0 24px;min-width:0}
.card h2,.card h3{color:var(--pg-blue);line-height:1.15}.card h2{margin:0 0 10px}.card h3{margin:0 0 8px}
.area-nav{display:flex;flex-wrap:wrap;gap:9px;margin:0 0 24px}
.pill-link,.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;border:1px solid var(--line);border-radius:999px;padding:9px 13px;background:#fff;color:var(--pg-blue);text-decoration:none;font-weight:850;cursor:pointer;box-shadow:0 6px 16px rgba(1,13,110,.06)}
.pill-link.active,.btn-primary{background:linear-gradient(135deg,var(--pg-blue),#1235b8);color:#fff;border-color:transparent}
.btn-secondary{background:#eaf6ff}.btn-danger{color:var(--danger);border-color:rgba(161,15,50,.25);background:#fff8fb}.btn-small{padding:6px 9px;font-size:.88rem}
.btn:hover,.pill-link:hover{transform:translateY(-1px);outline:3px solid rgba(0,178,254,.20);outline-offset:1px}
.area-block{margin-bottom:34px}.area-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:14px}.area-title{margin:0;color:var(--pg-blue);font-size:clamp(1.55rem,3vw,2.25rem)}.area-subtitle{margin:5px 0 0;color:var(--muted)}
.category-title{display:flex;align-items:center;gap:10px;margin:22px 0 12px;color:var(--pg-blue);font-size:1.18rem}.category-title:after{content:"";height:1px;background:var(--line);flex:1}
.page-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.page-card{display:flex;flex-direction:column;min-height:150px;border:1px solid var(--line);border-left:6px solid var(--pg-cyan);border-radius:18px;background:linear-gradient(135deg,#f8fbff,#fff);padding:16px 17px;box-shadow:0 9px 22px rgba(1,13,110,.06);text-decoration:none;color:var(--ink)}
.page-card:hover{transform:translateY(-2px);box-shadow:0 14px 28px rgba(1,13,110,.10);border-left-color:var(--pg-magenta)}
.page-card strong{display:block;color:var(--pg-blue);font-size:1.08rem;line-height:1.2;margin-bottom:7px}.page-card span{color:var(--muted)}.page-card .open-label{margin-top:auto;padding-top:12px;color:var(--pg-magenta);font-weight:850}
.empty{border:1px dashed rgba(1,13,110,.24);border-radius:18px;padding:18px;color:var(--muted);background:rgba(255,255,255,.8)}
.admin-bar{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;margin-bottom:18px}.admin-links{display:flex;flex-wrap:wrap;gap:8px}.admin-user{color:var(--muted);font-weight:700}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.form-full{grid-column:1/-1}.field label{display:block;font-weight:800;color:var(--pg-blue);margin-bottom:5px}.field input,.field select,.field textarea{width:100%;border:1px solid #cfd7e3;border-radius:13px;background:#fff;color:var(--ink);padding:10px 11px}.field textarea{min-height:88px;resize:vertical}.field input:focus,.field select:focus,.field textarea:focus{outline:3px solid rgba(0,178,254,.24);border-color:var(--pg-cyan)}.hint{margin-top:5px;color:var(--muted);font-size:.88rem}
.actions{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-top:14px}.inline-form{display:inline-flex;margin:0}.checkbox-row{display:flex;align-items:center;gap:8px}.checkbox-row input{width:1.1rem;height:1.1rem;accent-color:var(--pg-magenta)}
.flash{border-radius:15px;padding:11px 13px;margin:0 0 14px;font-weight:750;border-left:6px solid var(--pg-cyan);background:#f2fbff}.flash-success{border-left-color:var(--good);background:#eefbf4;color:#063b20}.flash-warning{border-left-color:#f59e0b;background:#fff7ed;color:#6a3600}.flash-error{border-left-color:var(--pg-magenta);background:#fff3f7;color:#6f0b2e}
.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:16px;background:#fff}.admin-table{width:100%;border-collapse:collapse;min-width:760px}.admin-table th,.admin-table td{padding:10px 11px;border-bottom:1px solid var(--line);vertical-align:top;text-align:left}.admin-table th{background:var(--pg-blue);color:#fff}.admin-table tr:last-child td{border-bottom:0}.admin-table .muted{color:var(--muted);font-size:.88rem}.status{display:inline-flex;border-radius:999px;padding:3px 8px;font-size:.8rem;font-weight:850}.status-on{background:#eefbf4;color:var(--good)}.status-off{background:#fff2f7;color:var(--pg-magenta)}
.category-admin{border:1px solid var(--line);border-radius:18px;margin:0 0 14px;background:#fff;overflow:hidden}.category-admin-head{display:flex;align-items:center;justify-content:space-between;gap:10px;background:#f7fbff;padding:11px 13px;border-bottom:1px solid var(--line)}.category-admin-head strong{color:var(--pg-blue)}.sort-actions{display:flex;gap:5px;flex-wrap:wrap}.page-admin-row{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:12px;align-items:center;padding:11px 13px;border-bottom:1px solid #edf2f7}.page-admin-row:last-child{border-bottom:0}.page-admin-row .page-title{font-weight:850;color:var(--pg-blue)}.page-admin-row .page-meta{font-size:.87rem;color:var(--muted);margin-top:2px}
.login-shell{width:min(520px,calc(100% - 28px));margin:7vh auto}.login-card{background:#fff;border:1px solid var(--line);border-radius:24px;box-shadow:var(--shadow);overflow:hidden}.login-head{padding:24px;background:linear-gradient(135deg,var(--pg-blue),#1235b8);color:#fff}.login-head h1{font-size:2rem}.login-body{padding:24px}.login-body .field{margin-bottom:13px}
footer{padding:26px 18px 38px;text-align:center;color:var(--muted);font-size:.92rem}.footer-login{display:inline-block;margin-top:8px;color:var(--muted);text-decoration:none}.footer-login:hover{color:var(--pg-blue)}
.code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;background:#f2f5f8;border-radius:7px;padding:2px 5px}
@media(max-width:900px){.hero{grid-template-columns:1fr}.page-grid{grid-template-columns:1fr}.form-grid{grid-template-columns:1fr}.form-full{grid-column:auto}}
@media(max-width:640px){.wrap{padding-left:12px;padding-right:12px}.site-header{padding-top:26px}.card{border-radius:18px;padding:16px}.area-head{flex-direction:column}.page-admin-row{grid-template-columns:1fr}.admin-bar{align-items:flex-start}}

/* Öffentliche Hauptseite: Oberbereiche */
.topbar-public{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px}
.admin-entry,.public-back{display:inline-flex;align-items:center;justify-content:center;gap:7px;padding:8px 12px;border-radius:999px;background:rgba(255,255,255,.96);color:var(--pg-blue);border:1px solid rgba(255,255,255,.60);text-decoration:none;font-weight:850;box-shadow:0 8px 20px rgba(1,13,110,.14)}
.admin-entry:hover,.public-back:hover{transform:translateY(-1px);outline:3px solid rgba(0,178,254,.30);outline-offset:1px}
.public-intro{margin:0 0 18px}.public-intro h2{margin:0 0 5px;color:var(--pg-blue);font-size:clamp(1.45rem,2.7vw,2rem)}.public-intro p{margin:0;color:var(--muted)}
.area-card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.area-card{display:flex;flex-direction:column;min-height:210px;padding:20px 21px;border-radius:22px;border:1px solid var(--line);border-top:7px solid var(--pg-cyan);background:linear-gradient(145deg,#fff,#f5fbff);box-shadow:var(--shadow);text-decoration:none;color:var(--ink);transition:transform .15s ease,box-shadow .15s ease,border-color .15s ease}
.area-card:hover{transform:translateY(-3px);box-shadow:0 18px 38px rgba(1,13,110,.14);border-top-color:var(--pg-magenta)}
.area-card-kicker{font-size:.78rem;text-transform:uppercase;letter-spacing:.09em;color:var(--pg-cyan);font-weight:950;margin-bottom:8px}
.area-card strong{display:block;color:var(--pg-blue);font-size:clamp(1.3rem,2.3vw,1.75rem);line-height:1.15;margin-bottom:8px}
.area-card-description{color:var(--muted);margin-bottom:14px}.area-card-meta{color:var(--muted);font-size:.88rem;font-weight:750;margin-top:auto}.area-card .open-label{color:var(--pg-magenta);font-weight:900;padding-top:10px}
.public-category-title{font-size:clamp(1.25rem,2.3vw,1.55rem);margin-top:0}.area-public-header .hero{align-items:end}
.admin-details{border:1px solid var(--line);border-radius:16px;background:#f8fbff;overflow:hidden}.admin-details>summary{cursor:pointer;padding:12px 14px;color:var(--pg-blue);font-weight:900}.admin-details-body{padding:0 14px 14px}
@media(max-width:900px){.area-card-grid{grid-template-columns:1fr}}
@media(max-width:640px){.topbar-public{margin-bottom:13px}.admin-entry,.public-back{padding:7px 10px;font-size:.9rem}.area-card{min-height:180px;padding:17px}.area-card-grid{gap:13px}}

/* Version 1.1: Benutzerverwaltung, lokaler Passwortspeicher, Materialsammlung */
.version-tag{display:inline-flex;align-items:center;margin-top:7px;padding:2px 7px;border-radius:999px;background:rgba(1,13,110,.06);border:1px solid rgba(1,13,110,.10);color:var(--muted);font-size:.72rem;font-weight:800;letter-spacing:.02em}
.password-panel{border:1px solid #d9e3ee;border-radius:16px;padding:12px;background:linear-gradient(180deg,#fff,#f8fbff)}
.password-input-row{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:8px;align-items:center}.password-input-row input{min-width:0}
.compact-actions{margin-top:8px}.password-save-row{margin-top:9px;color:var(--muted);font-size:.9rem}
.compact-password-panel{min-width:min(100%,470px);padding:10px}.reset-password-form{display:flex;flex-wrap:wrap;gap:8px;align-items:flex-end;margin:0}
.admin-account-actions{display:flex;flex-wrap:wrap;align-items:flex-end;gap:10px;margin-top:14px}
.password-vault-table{min-width:820px}.vault-password{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;color:var(--pg-blue);font-weight:850;white-space:nowrap}
.material-library-filter{margin:14px 0}.material-library{border:1px solid var(--line);border-radius:18px;overflow:hidden;background:#fff}
.material-library-row{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:14px;align-items:center;padding:13px 14px;border-bottom:1px solid #edf2f7}.material-library-row:last-child{border-bottom:0}.material-library-row[hidden]{display:none}
.material-library-main{min-width:0}.material-library-main strong{display:block;color:var(--pg-blue);font-size:1.02rem}.material-library-main span{display:block;color:var(--muted);font-size:.9rem;margin-top:3px}.material-library-main small{display:block;color:var(--ink);margin-top:5px}
.source-material-summary{display:flex;flex-direction:column;gap:4px;padding:13px 14px;border:1px solid var(--line);border-left:6px solid var(--pg-cyan);border-radius:16px;background:#f8fbff;margin:14px 0}.source-material-summary strong{color:var(--pg-blue)}.source-material-summary span{color:var(--muted)}
@media(max-width:760px){.password-input-row{grid-template-columns:1fr}.material-library-row{grid-template-columns:1fr}.reset-password-form{display:block}.compact-password-panel{margin-bottom:8px}.admin-account-actions{align-items:stretch}}

/* Version 1.2: Sicherheitsbereich und 2FA */
.recovery-code-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;margin:12px 0}.recovery-code-grid code{display:block;padding:9px 10px;border:1px solid var(--line);border-radius:12px;background:#f8fbff;color:var(--pg-blue);font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-weight:900;text-align:center;letter-spacing:.04em}.metric-box{background:#fff8fb;color:var(--pg-blue);border:1px solid rgba(212,0,75,.20);border-radius:16px;padding:.65rem .75rem;font-weight:850;min-width:0}.metric-label{color:var(--muted);display:block;font-size:.82rem;line-height:1.15;margin-bottom:.2rem;font-weight:800}.metric-value{display:block;font-size:clamp(1.25rem,2.4vw,1.75rem);line-height:1.05;font-weight:950}.grid3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:.7rem;margin:.85rem 0}.muted{color:var(--muted)}
@media(max-width:760px){.recovery-code-grid,.grid3{grid-template-columns:1fr}}

/* Version 1.7.2: Smartphone-Adminnavigation mit sticky Kopfzeile */
.admin-mobile-header,
.admin-mobile-drawer,
.admin-mobile-overlay{display:none}
.admin-nav-active{background:linear-gradient(135deg,var(--pg-blue),#1235b8)!important;color:#fff!important;border-color:transparent!important}

@media(max-width:760px){
  .admin-page .admin-desktop-hero,
  .admin-page .admin-desktop-nav{display:none!important}

  .admin-page main.wrap{padding-top:18px}

  .admin-mobile-header{
    position:sticky;
    top:0;
    z-index:1000;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:12px;
    min-height:64px;
    padding:calc(9px + env(safe-area-inset-top)) 14px 9px;
    color:#fff;
    background:linear-gradient(135deg,var(--pg-blue),#043b91 62%,var(--pg-cyan));
    border-bottom:1px solid rgba(255,255,255,.24);
    box-shadow:0 9px 24px rgba(1,13,110,.22);
  }
  .admin-mobile-header-text{min-width:0;display:flex;flex-direction:column;line-height:1.15}
  .admin-mobile-header-text strong{
    overflow:hidden;
    text-overflow:ellipsis;
    white-space:nowrap;
    font-size:1.02rem;
    font-weight:900;
  }
  .admin-mobile-header-text span{margin-top:3px;color:rgba(255,255,255,.78);font-size:.75rem;font-weight:750}

  .admin-menu-toggle{
    flex:0 0 46px;
    width:46px;
    height:46px;
    display:grid;
    place-content:center;
    gap:5px;
    border:1px solid rgba(255,255,255,.34);
    border-radius:14px;
    background:rgba(255,255,255,.13);
    color:#fff;
    cursor:pointer;
    box-shadow:none;
  }
  .admin-menu-toggle span{display:block;width:22px;height:2.5px;border-radius:999px;background:#fff}
  .admin-menu-toggle:focus-visible,.admin-menu-close:focus-visible,.admin-mobile-nav-link:focus-visible{outline:3px solid rgba(0,178,254,.45);outline-offset:2px}

  .admin-mobile-overlay{
    position:fixed;
    inset:0;
    z-index:1080;
    display:block;
    background:rgba(5,13,55,.48);
    opacity:0;
    pointer-events:none;
    transition:opacity .2s ease;
    backdrop-filter:blur(2px);
  }
  .admin-mobile-overlay[hidden]{display:none}
  .admin-mobile-overlay.is-open{opacity:1;pointer-events:auto}

  .admin-mobile-drawer{
    position:fixed;
    z-index:1100;
    top:0;
    right:0;
    bottom:0;
    display:flex;
    flex-direction:column;
    width:min(88vw,370px);
    max-width:100%;
    padding:calc(14px + env(safe-area-inset-top)) 14px calc(14px + env(safe-area-inset-bottom));
    background:linear-gradient(180deg,#fff 0%,#f7fbff 100%);
    box-shadow:-18px 0 45px rgba(1,13,110,.22);
    transform:translateX(105%);
    visibility:hidden;
    transition:transform .22s ease,visibility 0s linear .22s;
    overflow-y:auto;
    overscroll-behavior:contain;
  }
  .admin-mobile-drawer.is-open{
    transform:translateX(0);
    visibility:visible;
    transition:transform .22s ease,visibility 0s;
  }
  .admin-mobile-drawer-head{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:12px;
    padding:3px 2px 14px;
    border-bottom:1px solid var(--line);
  }
  .admin-mobile-drawer-head>div{min-width:0;display:flex;flex-direction:column}
  .admin-mobile-drawer-head strong{color:var(--pg-blue);font-size:1.35rem;line-height:1.1}
  .admin-mobile-drawer-head span{margin-top:4px;color:var(--muted);font-size:.88rem;font-weight:700;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
  .admin-menu-close{
    flex:0 0 44px;
    width:44px;
    height:44px;
    border:1px solid var(--line);
    border-radius:14px;
    background:#fff;
    color:var(--pg-blue);
    font-size:1.7rem;
    line-height:1;
    font-weight:500;
    cursor:pointer;
  }

  .admin-mobile-nav{display:grid;gap:8px;padding:15px 0}
  .admin-mobile-nav-link{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:10px;
    min-height:48px;
    padding:11px 13px;
    border:1px solid var(--line);
    border-radius:14px;
    background:#fff;
    color:var(--pg-blue);
    text-decoration:none;
    font-weight:880;
    box-shadow:0 5px 13px rgba(1,13,110,.045);
  }
  .admin-mobile-nav-link:active{transform:scale(.99)}
  .admin-mobile-logout{margin-top:auto;padding-top:12px;border-top:1px solid var(--line)}
  .admin-mobile-logout .btn{width:100%;min-height:48px}

  body.admin-menu-open{overflow:hidden;touch-action:none}
}

@media(prefers-reduced-motion:reduce){
  .admin-mobile-drawer,.admin-mobile-overlay{transition:none!important}
}

/* Version 1.7.3: Sticky Admin-Kopfzeile und Navigation auf Desktop */
@media(min-width:761px){
  .admin-desktop-sticky{
    position:sticky;
    top:0;
    z-index:950;
    box-shadow:0 10px 28px rgba(1,13,110,.12);
  }
  .admin-desktop-hero{
    padding:14px 0 12px;
    border-bottom:0;
    box-shadow:none;
  }
  .admin-desktop-hero .hero{
    grid-template-columns:minmax(0,1fr) auto;
    gap:18px;
  }
  .admin-desktop-hero h1{
    margin:0 0 3px;
    font-size:clamp(1.45rem,2.4vw,2rem);
    line-height:1.08;
    letter-spacing:-.025em;
  }
  .admin-desktop-hero .subtitle{
    font-size:.95rem;
  }
  .admin-desktop-hero .hero-note{
    min-width:230px;
    padding:9px 13px;
    border-radius:15px;
    font-size:.9rem;
  }
  .admin-desktop-hero .hero-note small{
    margin-top:2px;
    font-size:.78rem;
  }
  .admin-desktop-nav-shell{
    background:rgba(255,255,255,.97);
    border-bottom:1px solid var(--line);
    backdrop-filter:blur(12px);
  }
  .admin-desktop-nav{
    margin:0;
    padding:9px 0;
  }
  .admin-desktop-nav .btn{
    padding:7px 11px;
    font-size:.9rem;
  }
  .admin-page main.wrap{
    padding-top:22px;
  }
}

@media(max-width:760px){
  .admin-mobile-header-text strong{
    font-size:clamp(.92rem,4.1vw,1.08rem);
    white-space:nowrap;
    overflow:hidden;
    text-overflow:ellipsis;
  }
  .admin-mobile-drawer-head strong{
    font-size:1.08rem;
    line-height:1.22;
  }
}

/* Version 1.7.5: HTTPS-Prüfung der HTML-Materialien */
.https-audit-details{margin-top:7px;border:1px solid var(--line);border-radius:12px;background:#fbfdff;overflow:hidden}
.https-audit-details summary{cursor:pointer;padding:7px 9px;color:var(--pg-blue);font-weight:850;font-size:.84rem}
.https-audit-list{display:grid;gap:6px;padding:8px 9px 10px;border-top:1px solid var(--line)}
.https-audit-list code{display:block;white-space:normal;overflow-wrap:anywhere;color:#6f0b2e;background:#fff3f7;border-radius:8px;padding:6px 7px;font-size:.78rem}
.https-status-list{display:grid;gap:8px;margin-top:12px}
.https-status-row{display:flex;gap:10px;align-items:flex-start;justify-content:space-between;border:1px solid var(--line);border-radius:14px;padding:10px 12px;background:#fff}
.https-status-row>div{min-width:0}.https-status-row strong{display:block;color:var(--pg-blue)}.https-status-row small{display:block;color:var(--muted);margin-top:2px}
@media(max-width:760px){.https-status-row{display:block}.https-status-row .status{margin-top:7px}}