/* BitBooks-Build 2026-10-27.3 – Design im Stil von BitOffice & netDesk · responsiv für Handy, Tablet und Desktop */
:root{
  --bg:#f3f4f7;--card:#fff;--ink:#1f2530;--sub:#69727f;--line:#e3e6ec;--soft:#f7f8fa;
  --side:#161b24;--side-2:#1d2430;--side-ink:#c9ced8;--side-mute:#7d8594;
  --accent:#e2455a;--accent-2:#c93549;--accent-soft:#fdecef;
  --ok:#14865c;--ok-soft:#e5f6ee;--warn:#9a5d0f;--warn-soft:#fff3e1;--bad:#b42f3f;--bad-soft:#fdebed;
  --radius:16px;--shadow:0 10px 30px #1b243310;
  color-scheme:light;font-synthesis:none;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:14px/1.55 Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif}
a{color:var(--accent-2);text-decoration:none}
a:hover{text-decoration:underline}
img,svg{max-width:100%}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:3px solid #7aa7ff;outline-offset:2px}
h1,h2,h3{color:var(--ink);margin-top:0}
p{margin:0 0 12px}
code{font:12px/1.4 ui-monospace,SFMono-Regular,Consolas,monospace;background:var(--soft);border:1px solid var(--line);border-radius:6px;padding:2px 6px;overflow-wrap:anywhere}
small,.muted{color:var(--sub)}
td small,th small{display:block;font-size:12px;margin-top:2px}

/* ---------- App-Rahmen ---------- */
.app-shell{display:grid;grid-template-columns:264px minmax(0,1fr);min-height:100vh;background:linear-gradient(to right,var(--side-2) 0 264px,transparent 264px)}
.sidebar{position:sticky;top:0;height:100vh;display:flex;flex-direction:column;background:linear-gradient(180deg,var(--side),var(--side-2));color:var(--side-ink);padding:24px 16px;overflow-y:auto}
.sidebar-top{display:flex;align-items:center;justify-content:space-between;gap:10px;margin:0 8px 26px}
.sidebar .logo img{display:block;height:31px;width:auto}
.menu-toggle{display:none;background:#ffffff14;color:#fff;border:1px solid #ffffff26;border-radius:10px;padding:8px 14px;font-weight:700;font-size:13px;cursor:pointer}
.sidebar nav{display:flex;flex-direction:column;gap:2px}
.sidebar-label{color:var(--side-mute);font-size:10px;font-weight:800;letter-spacing:.16em;padding:16px 12px 6px}
.nav-link,.nav-logout{display:flex;align-items:center;justify-content:flex-start;min-height:0;gap:11px;width:100%;padding:10px 12px;border-radius:10px;color:var(--side-ink);font-weight:600;font-size:14px;background:none;border:0;text-align:left;cursor:pointer;text-decoration:none}
.nav-link:hover,.nav-logout:hover{background:#ffffff0f;color:#fff;text-decoration:none}
.nav-link.active{background:#ffffff14;color:#fff;box-shadow:inset 3px 0 0 var(--accent)}
.nav-ico{width:18px;height:18px;flex:none;opacity:.9}
.logout-form{margin:6px 0 0}
.side-bottom{margin-top:auto;padding:18px 12px 4px;font-size:12px;color:var(--side-mute);border-top:1px solid #ffffff14}
.side-dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:#2fc48d;margin-right:6px;vertical-align:middle}
.app-main{min-width:0;display:flex;flex-direction:column}
.topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px clamp(16px,3.5vw,44px);border-bottom:1px solid var(--line);background:#fffffff0;backdrop-filter:saturate(1.4) blur(6px);position:sticky;top:0;z-index:5}
.topbar-title{font-size:13px;font-weight:700}
.topbar-title span{color:var(--sub);font-weight:500}
.user-chip{display:flex;align-items:center;gap:10px;min-width:0}
.user-chip strong,.user-chip small{display:block;font-size:12px;line-height:1.3;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:200px}
.user-avatar{display:grid;place-items:center;width:36px;height:36px;flex:none;border-radius:11px;background:var(--accent-soft);color:var(--accent-2);font-weight:800}
.content{width:100%;max-width:1380px;margin:0 auto;padding:clamp(20px,3.5vw,44px);flex:1}
.page-intro{margin-bottom:26px}
.eyebrow{font-size:10px;font-weight:800;letter-spacing:.16em;text-transform:uppercase;color:var(--accent-2)}
.page-intro h1{font-size:clamp(28px,3.4vw,40px);line-height:1.12;letter-spacing:-.035em;margin:8px 0 8px}
.page-subtitle{color:var(--sub);margin:0;max-width:720px}
.site-footer{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;padding:20px clamp(16px,3.5vw,44px);font-size:12px;color:var(--sub);border-top:1px solid var(--line)}
.site-footer a{color:var(--sub)}

/* ---------- Karten & Raster ---------- */
section,.card,.auth-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:clamp(18px,2.4vw,28px);margin:0 0 18px;box-shadow:var(--shadow)}
section h2,.card h2{font-size:19px;letter-spacing:-.02em;margin-bottom:12px}
section h3{font-size:15px;margin:20px 0 8px}
.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;align-items:start;margin-bottom:18px}
.grid>section,.grid>.card{margin:0}
.section-heading{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:12px;margin-bottom:16px}
.section-heading h2{font-size:22px;margin:4px 0 0}
.collection-count{font-size:12px;color:var(--sub)}
.stats-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin:0 0 22px}
.stat-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow)}
.stat-card:first-child{background:var(--side);border-color:var(--side);color:#fff}
.stat-card:first-child span,.stat-card:first-child small{color:#aab1bd}
.stat-card:first-child strong{color:#fff}
.stat-card span,.stat-card small{display:block;font-size:12px;color:var(--sub)}
.stat-card strong{display:block;font-size:32px;letter-spacing:-.04em;line-height:1.15;margin:6px 0}

/* ---------- Formulare & Buttons ---------- */
label{display:block;font-size:12px;font-weight:700;color:#4f5867;margin:14px 0 6px}
input,select,textarea{display:block;width:100%;min-width:0;min-height:44px;background:#fff;border:1px solid #d6dbe3;border-radius:10px;padding:10px 12px;margin-top:6px;color:var(--ink)}
textarea{min-height:110px;resize:vertical}
input:focus,select:focus,textarea:focus{border-color:#9db8f0;outline:none;box-shadow:0 0 0 3px #7aa7ff33}
input::placeholder{color:#a3abb7}
input[type=checkbox],input[type=radio]{display:inline-block;width:18px;height:18px;min-height:0;margin:0 8px 0 0;vertical-align:middle;accent-color:var(--accent)}
.bb-check{display:flex;gap:10px;align-items:flex-start;font-weight:500;color:var(--ink);font-size:13px;margin:18px 0}
.bb-check input{margin-top:2px;flex:none}
button,.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:10px 18px;border:1px solid transparent;border-radius:10px;background:var(--accent);color:#fff;font-weight:700;cursor:pointer;text-decoration:none;line-height:1.2}
button:hover,.btn:hover{background:var(--accent-2);color:#fff;text-decoration:none}
.btn-quiet,.inline button{background:#eff1f5;color:#3b4352;min-height:34px;padding:6px 11px;font-size:12px}
.btn-quiet:hover,.inline button:hover{background:#e3e7ee;color:var(--ink)}
.full-button,.download-button{width:100%;margin-top:14px}
form.inline{display:inline-flex;margin:0 6px 6px 0}
.bb-actions{white-space:nowrap}
.bb-copy{font:12px ui-monospace,SFMono-Regular,Consolas,monospace;background:var(--soft)}
.error{color:var(--bad)}.success{color:var(--ok)}.warning{color:var(--warn)}

/* ---------- Tabellen ---------- */
.table-wrap{width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;border-radius:12px}
table{width:100%;border-collapse:collapse;font-size:13px;display:block;overflow-x:auto}
.table-wrap table{display:table}
th,td{padding:12px;border-bottom:1px solid #edf0f4;text-align:left;vertical-align:middle}
th{background:var(--soft);color:#7b8492;font-size:11px;font-weight:800;letter-spacing:.05em;text-transform:uppercase;white-space:nowrap}
tr:last-child td{border-bottom:0}
td strong{color:#333c4b}
td code{white-space:nowrap}
.empty-cell{text-align:center;color:var(--sub);padding:28px}

/* ---------- Status ---------- */
.status-pill{display:inline-flex;align-items:center;padding:4px 10px;border-radius:99px;font-size:11px;font-weight:800;white-space:nowrap}
.status-live{background:var(--ok-soft);color:var(--ok)}
.status-inactive{background:var(--warn-soft);color:var(--warn)}
.status-open{background:#eef2ff;color:#3550b5}
.bb-message{display:block;background:var(--card);border:1px solid var(--line);border-left:4px solid var(--accent);border-radius:12px;padding:16px 18px;margin:0 0 18px}
.bb-message-error{border-left-color:var(--bad);background:var(--bad-soft);color:#7c1f2a}
.bb-message-icon{display:inline-grid;place-items:center;width:28px;height:28px;border-radius:50%;background:var(--accent-soft);color:var(--accent-2);font-weight:900;margin-bottom:8px}
.bb-result{border-left:4px solid var(--ok)}
.bb-health{display:flex;flex-wrap:wrap;justify-content:space-between;gap:14px;align-items:flex-start;border-radius:12px;padding:14px 18px;margin:0 0 18px;border:1px solid var(--line)}
.bb-health-ok{background:var(--ok-soft);border-color:#c5ebd8}
.bb-health-alert{background:var(--warn-soft);border-color:#f3d9b0}
.bb-health p{margin:4px 0 0;color:inherit;opacity:.85}

/* ---------- Admin-Reiter ---------- */
.bb-hidden{display:none!important}
.bb-admin-nav{display:flex;gap:6px;overflow-x:auto;padding:5px;margin:0 0 18px;background:#e9ecf1;border-radius:12px;scrollbar-width:none}
.bb-admin-nav::-webkit-scrollbar{display:none}
.bb-admin-nav button{background:transparent;color:#4b5462;min-height:38px;padding:8px 14px;border-radius:9px;font-size:13px;white-space:nowrap}
.bb-admin-nav button:hover{background:#ffffffa8;color:var(--ink)}
.bb-admin-nav button[aria-selected=true]{background:#fff;color:var(--ink);box-shadow:0 2px 8px #1b243314}
.bb-shortcuts{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 18px}
.bb-shortcuts a{background:#fff;border:1px solid var(--line);border-radius:10px;padding:9px 14px;font-weight:700;font-size:13px;color:var(--ink)}
.bb-shortcuts a:hover{border-color:var(--accent);text-decoration:none}
.bb-admin-search{margin:0 0 14px}

/* ---------- Bibliothek ---------- */
.welcome-panel{position:relative;overflow:hidden;display:flex;align-items:center;justify-content:space-between;gap:24px;background:linear-gradient(120deg,var(--side),#2a2f3d 60%,#5b2533);color:#fff;border:0;border-radius:20px;padding:clamp(22px,3.5vw,38px)}
.welcome-panel h2{color:#fff;font-size:clamp(22px,3vw,32px);letter-spacing:-.03em;margin:6px 0 10px}
.welcome-panel p{color:#d9dde6;max-width:620px}
.welcome-panel .eyebrow{color:#ff9fac}
.book-count{background:#ffffff14;border:1px solid #ffffff2a;border-radius:14px;padding:16px 22px;text-align:center;min-width:130px}
.book-count strong{display:block;font-size:36px;line-height:1.1}
.book-count span{font-size:12px;color:#e7d9dd}
.book-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,260px),1fr));gap:18px;margin:0 0 20px}
.book-card{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);border-radius:18px;overflow:hidden;box-shadow:var(--shadow);transition:transform .16s,box-shadow .16s}
.book-card:hover{transform:translateY(-3px);box-shadow:0 16px 36px #1b24331c}
.book-art{position:relative;display:grid;place-items:center;min-height:170px;background:linear-gradient(135deg,#1f2633,#3a2a3a 65%,var(--accent))}
.book-art-symbol{font-size:72px;font-weight:900;color:#fff;letter-spacing:-.04em}
.book-art-symbol span{color:#ff8a9a}
.book-art-top,.book-art-bottom{position:absolute;left:20px;font-size:10px;font-weight:800;letter-spacing:.14em;color:#ffffffa6}
.book-art-top{top:16px}.book-art-bottom{bottom:16px}
.book-details{display:flex;flex-direction:column;flex:1;padding:20px}
.book-details h3{font-size:17px;line-height:1.35;margin:8px 0 12px}
.book-meta{display:grid;gap:5px;font-size:12px;color:var(--sub);margin-bottom:14px}
.book-meta strong{color:#444d5c}
.book-details .btn,.book-details .download-button{margin-top:auto}
.inactive-message{font-size:13px;color:var(--warn);margin-top:auto}
.empty-state{grid-column:1/-1;text-align:center;padding:48px 24px}
.empty-icon{font-size:40px;margin-bottom:8px}
.info-strip{display:flex;align-items:center;gap:14px}
.info-symbol{display:grid;place-items:center;width:38px;height:38px;flex:none;border-radius:11px;background:var(--ok-soft);color:var(--ok);font-weight:900}
.info-strip p{margin:3px 0 0;color:var(--sub);font-size:13px}
.profile-panel{max-width:760px}
.manual-issue{max-width:760px}
.bb-book-list{display:grid;gap:10px}
.bb-book-row{display:flex;align-items:center;gap:12px;padding:10px;border:1px solid var(--line);border-radius:12px;background:var(--soft)}
.bb-book-row strong{display:block;font-size:14px}
.bb-book-mark{display:grid;place-items:center;width:38px;height:46px;flex:none;border-radius:8px;background:linear-gradient(135deg,#1f2633,var(--accent));color:#fff;font-weight:900}
.bb-legal h2{font-size:17px;margin:26px 0 8px}
.bb-legal p,.bb-legal li{line-height:1.75}

/* ---------- Öffentliche Seiten (Login, Aktivierung) ---------- */
.public-header{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px clamp(16px,5vw,64px);background:#fff;border-bottom:1px solid var(--line)}
.public-header .logo img{display:block;height:33px;width:auto}
.public-header>span{font-size:11px;font-weight:800;letter-spacing:.14em;color:#9aa2ae}
.auth-view{background:radial-gradient(circle at 80% 0%,#fde6ea 0,transparent 42%),var(--bg)}
.auth-view .content{max-width:560px;padding:clamp(28px,7vw,64px) 16px}
.auth-view .page-intro{text-align:center}
.auth-card{padding:clamp(22px,5vw,34px)}
.auth-card-top{display:flex;align-items:center;gap:14px;margin-bottom:18px}
.auth-icon{display:grid;place-items:center;width:52px;height:52px;flex:none;border-radius:14px;background:var(--accent-soft);font-size:22px}
.auth-card h2{font-size:21px;margin:0}
.auth-bottom{text-align:center;margin:18px 0 0}
.auth-note{text-align:center;font-size:12px;color:var(--sub)}

/* ---------- Tablet ---------- */
@media (max-width:1100px){
  .app-shell{grid-template-columns:230px minmax(0,1fr);background:linear-gradient(to right,var(--side-2) 0 230px,transparent 230px)}
  .stats-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid{grid-template-columns:1fr}
}
/* ---------- Handy & kleines Tablet: Menü klappt ein ---------- */
@media (max-width:900px){
  .app-shell{display:block;background:none}
  .sidebar{position:sticky;top:0;z-index:20;height:auto;max-height:100vh;padding:12px 16px}
  .sidebar-top{margin:0}
  .sidebar .logo img{height:27px}
  .menu-toggle{display:inline-flex;min-height:38px}
  .sidebar nav,.side-bottom{display:none}
  .sidebar.open nav{display:flex;padding:10px 0 6px}
  .topbar{position:static;padding:12px 16px}
  .topbar-title{display:none}
  .user-chip{margin-left:auto}
}
@media (max-width:600px){
  body{font-size:15px}
  .content{padding:18px 14px}
  .stats-grid{gap:10px}
  .stat-card{padding:16px}
  .stat-card strong{font-size:26px}
  .welcome-panel{flex-direction:column;align-items:flex-start}
  .book-count{min-width:0;width:100%}
  section,.card{border-radius:14px;padding:18px}
  .public-header>span{display:none}
  .site-footer{flex-direction:column}
  /* Tabellen werden zu Karten */
  .table-wrap table,table{display:block;overflow:visible}
  table tr:first-child:has(th){display:none}
  table tr{display:block;border:1px solid var(--line);border-radius:12px;padding:10px 12px;margin:0 0 10px;background:#fff}
  table td{display:block;border:0;padding:4px 0}
  .bb-actions{white-space:normal}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
@media print{.sidebar,.topbar,.site-footer,.menu-toggle{display:none!important}.app-shell{display:block}body{background:#fff}section,.card{box-shadow:none}}

/* ===== Angleichung an BitOffice: Seitenleiste & Kopfzeile ===== */
.sidebar{background:#171b22;padding:28px 16px 18px}
.app-shell{background:linear-gradient(to right,#171b22 0 264px,transparent 264px)}
.sidebar-top{margin:0 8px 22px}
.sidebar .logo{display:flex;flex-direction:column;gap:6px}
.logo-sub{font:700 8px ui-monospace,SFMono-Regular,monospace;letter-spacing:3px;color:#8d96a7;padding-left:40px}
.nav-quick{display:flex;gap:8px;margin:0 4px 8px}
.nav-quick a{flex:1;display:inline-flex;align-items:center;justify-content:center;min-height:40px;padding:8px 10px;border-radius:10px;border:1px solid #ffffff2e;color:#fff;font-size:12px;font-weight:800;text-decoration:none;white-space:nowrap}
.nav-quick a:hover{background:#ffffff12;text-decoration:none}
.nav-quick .nav-quick-primary{background:var(--accent);border-color:var(--accent)}
.nav-quick .nav-quick-primary:hover{background:var(--accent-2)}
.sidebar-label{color:#929eae;font-size:10px;letter-spacing:.1em;padding:18px 12px 6px}
.nav-link{font-size:14px;color:#c0c6d0}
.nav-link:hover,.nav-link.active{background:#2c3039;color:#fff}
.nav-link.active{box-shadow:inset 3px 0 #ff7057}
.side-user{margin-top:auto;display:flex;align-items:center;gap:10px;padding:16px 8px 0;border-top:1px solid #ffffff14}
.side-user .user-avatar{border-radius:50%;background:#ff7057;color:#171b22}
.side-who{display:flex;flex-direction:column;min-width:0;flex:1;font-size:12px;line-height:1.3}
.side-who strong{color:#fff;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.side-who small{color:#8e98a8}
.side-user .logout-form{margin:0}
.side-logout{display:grid;place-items:center;width:36px;height:36px;min-height:0;padding:0;border-radius:9px;background:#ffffff0d;color:#c0c6d0}
.side-logout:hover{background:#ffffff1f;color:#fff}
.side-logout .nav-ico{width:18px;height:18px}
.topbar{position:static;background:transparent;backdrop-filter:none;border-bottom:1px solid #e1e5ec;margin:0 clamp(20px,3.5vw,44px);padding:22px 0;font-size:12px;color:#788192}
.topbar-title{font-size:12px;font-weight:500;color:#788192}
.topbar-date b{color:#4ba583;margin-left:10px}
.content{padding-top:28px}
/* Doppelte Navigation entfernen: Bereiche kommen aus der Seitenleiste */
.admin-view .bb-admin-nav{display:none!important}
/* Cockpit-Schnellzugriffe als Kacheln */
.bb-shortcuts{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:14px}
.bb-shortcuts a{display:flex;align-items:center;min-height:72px;padding:16px 18px;border-radius:14px;font-size:14px;box-shadow:var(--shadow)}
.bb-shortcuts a:first-child{background:var(--accent);border-color:var(--accent);color:#fff}
.bb-health-ok{display:none}
@media (max-width:1100px){.app-shell{background:linear-gradient(to right,#171b22 0 230px,transparent 230px)}}
@media (max-width:900px){
  .app-shell{background:none}
  .sidebar{padding:12px 16px}
  .sidebar-top{margin:0}
  .logo-sub{display:none}
  .nav-quick,.side-user{display:none}
  .sidebar.open .nav-quick{display:flex;margin-top:12px}
  .sidebar.open .side-user{display:flex;padding-bottom:6px}
  .topbar{margin:0 16px;padding:14px 0}
  .topbar-title{display:inline}
}

.nav-hub{margin-bottom:12px;color:#fff}
.nav-hub .nav-ico{color:#ff7057}