/* ===========================================================
   KG75 · Admin UI Base
   - Dark, klar, mobile-first
   - Komponenten: Container, Cards, Buttons, Forms, Grid, Table,
     Cover-Grid, Navbar, Usermenu, Alerts, Login
   - Farbwerte über CSS-Variablen -> Theme-blöcke überschreiben diese
   =========================================================== */

:root{
  /* Fallback-Basis (wird von Themes überschrieben) */
  --bg:#0e1114; --text:#f2f6f8; --muted:#c7d1d8;
  --surface:#14181d; --surface-muted:#171c22; --border:#1f2630;

  --primary:#f59e0b; --primary-2:#ffb23a; --primary-3:#a86d07; /* Orange */
  --accent:#06b6d4; --accent-2:#22d3ee; --accent-3:#0a7080;   /* Türkis */

  --success:#22c55e; --warning:#f59e0b; --danger:#ef4444;

  --ring: 2px solid color-mix(in oklab, var(--accent-2) 60%, white);
  --shadow-sm: 0 1px 2px rgba(0,0,0,.35);
  --shadow:    0 8px 22px rgba(0,0,0,.45);
  --shadow-lg: 0 18px 36px rgba(0,0,0,.55), 0 2px 8px rgba(0,0,0,.35);

  --grad-soft:
    radial-gradient(1000px 600px at 10% -10%, rgba(245,158,11,.10), transparent 55%),
    radial-gradient(900px 600px at 100% 0%, rgba(6,182,212,.12), transparent 60%),
    linear-gradient(180deg, #0e1114 0%, #0c1013 100%);
  --grad-primary: linear-gradient(135deg, var(--primary) 0%, var(--primary-2) 100%);
  --grad-accent:  linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 100%);
  --grad-nav: linear-gradient( to right,
                 color-mix(in oklab, #0b0e11 70%, var(--accent) 30%),
                 color-mix(in oklab, #0b0e11 70%, var(--primary) 30%) );
}

@media (prefers-reduced-motion: reduce){
  :root{ --ring: 2px solid var(--accent); }
}

/* ===== Base ===== */
*,
*::before,
*::after { box-sizing: border-box; }

html, body { height: 100%; }

body{
  margin: 0;
  background: var(--grad-soft);
  color: var(--text);
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Arial, sans-serif;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  animation: page-fade .25s ease both;
}
@keyframes page-fade { from { opacity:.0 } to { opacity:1 } }

a{ color: inherit; }

.container{ max-width: 1200px; margin: 0 auto; padding: 16px; }
.small{ font-size: .92rem; opacity: .85; }

/* ===== Cards ===== */
.card{
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 14px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow .2s ease, border-color .2s ease, transform .12s ease;
}
.card.glass{
  background:
    linear-gradient(180deg, rgba(6,182,212,.06), rgba(0,0,0,0) 40%),
    color-mix(in oklab, var(--surface) 86%, black 14%);
  backdrop-filter: saturate(140%) blur(6px);
  border: 1px solid color-mix(in oklab, var(--border) 70%, var(--accent) 30%);
}
.card.glow{ box-shadow: var(--shadow); }
.card:hover{ border-color: color-mix(in oklab, var(--border) 40%, var(--accent) 60%); }

/* ===== Topbar ===== */
.topbar{ display:flex; align-items:center; justify-content:space-between; gap:12px; }

/* ===== Buttons ===== */
.btn{
  display:inline-block;
  padding: 10px 12px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: inherit;
  text-decoration: none;
  border-radius: 10px;
  cursor: pointer;
  user-select: none;
  transition: transform .12s ease, background .15s ease, border-color .15s ease, box-shadow .15s ease;
}
.btn:hover{ background: var(--surface-muted); transform: translateY(-1px); }
.btn:active{ transform: translateY(0); }
.btn:focus-visible{ outline: var(--ring); outline-offset: 2px; }

.btn.secondary{
  background: color-mix(in oklab, var(--surface) 85%, black 15%);
  border-color: color-mix(in oklab, var(--border) 60%, var(--accent) 40%);
}
.btn.primary{
  background: var(--grad-primary);
  color: #2a1703;
  font-weight: 700;
  border: 1px solid color-mix(in oklab, var(--primary) 55%, var(--accent) 45%);
  box-shadow: 0 10px 26px rgba(245,158,11,.25);
}
.btn.info{
  background: var(--grad-accent);
  color: #031318;
  border: 1px solid color-mix(in oklab, var(--accent) 70%, white 30%);
  font-weight: 700;
}
.btn.danger{
  border-color: color-mix(in oklab, var(--danger) 35%, var(--border));
  color: #ffd7db;
  background: color-mix(in oklab, var(--danger) 9%, var(--surface));
}
.btn.danger:hover{ background: color-mix(in oklab, var(--danger) 13%, var(--surface)); }

/* ===== Forms ===== */
label{ display:block; font-size: .92rem; margin: 0 0 6px; opacity: .9; }
input, select, textarea{
  width: 100%;
  padding: 10px 12px;
  border: 1px solid color-mix(in oklab, var(--border) 70%, var(--accent) 30%);
  border-radius: 10px;
  background: color-mix(in oklab, var(--surface) 90%, black 10%);
  color: var(--text);
  transition: border-color .15s ease, box-shadow .15s ease, background .15s ease;
}
input::placeholder, textarea::placeholder{ opacity: .6; }
input:focus, select:focus, textarea:focus{
  border-color: color-mix(in oklab, var(--accent) 60%, var(--primary) 40%);
  box-shadow: 0 0 0 3px color-mix(in oklab, var(--accent) 20%, transparent);
  outline: none;
}

/* ===== Grid ===== */
.grid{ display: grid; gap: 12px; }
.grid-2{ grid-template-columns: repeat(2, 1fr); }
.grid-3{ grid-template-columns: repeat(3, 1fr); }
.grid-4{ grid-template-columns: repeat(4, 1fr); }
@media (max-width: 1024px){ .grid-4{ grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 860px){ .grid-3, .grid-4{ grid-template-columns: 1fr; } }

/* ===== Tables ===== */
.table-wrap{
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--border);
  border-radius: 12px;
}
.table{ width: 100%; border-collapse: collapse; border-spacing: 0; }
.table thead th{
  text-align: left;
  font-weight: 800;
  font-size: .92rem;
  border-bottom: 1px solid var(--border);
  padding: 10px 12px;
  color: #f9fafb;
  background:
    linear-gradient(180deg, rgba(245,158,11,.12) 0%, rgba(6,182,212,.10) 100%),
    color-mix(in oklab, var(--surface) 85%, black 15%);
  position: sticky; top: 0; z-index: 1;
}
.table tbody td{
  border-bottom: 1px solid var(--border);
  padding: 10px 12px; vertical-align: middle;
  background: var(--surface);
}
.table .thumb{
  width: 44px; height: 62px; object-fit: cover;
  border-radius: 6px; border: 1px solid rgba(6,182,212,.25);
  background: #0f171b;
}

/* Badges */
.badge{
  display: inline-block; padding: 4px 8px; font-size: 12px;
  border: 1px solid color-mix(in oklab, var(--border) 60%, var(--accent) 40%);
  border-radius: 999px;
  background: color-mix(in oklab, var(--surface) 85%, black 15%);
  color: var(--text);
  transition: transform .12s ease, background .15s ease, border-color .15s ease;
}
.badge:hover{ transform: translateY(-1px); }
.badge.badge-icon{ display:inline-flex; align-items:center; gap:6px; }
.badge.shelf{
  color: color-mix(in oklab, var(--text) 85%, var(--success) 15%);
  border-color: color-mix(in oklab, var(--success) 30%, var(--border) 70%);
  background: color-mix(in oklab, var(--surface) 80%, #0e2616 20%);
}
.badge.borrowed{
  color: color-mix(in oklab, var(--text) 80%, var(--warning) 20%);
  border-color: color-mix(in oklab, var(--warning) 40%, var(--border) 60%);
  background: color-mix(in oklab, var(--surface) 80%, #2a1d07 20%);
}

/* ===== Cover Grid ===== */
.grid.grid-covers{
  display: grid; gap: 12px;
  grid-template-columns: repeat(6, minmax(0, 1fr));
}
@media (max-width: 1280px) { .grid.grid-covers{ grid-template-columns: repeat(5, 1fr); } }
@media (max-width: 1024px) { .grid.grid-covers{ grid-template-columns: repeat(4, 1fr); } }
@media (max-width: 860px)  { .grid.grid-covers{ grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 640px)  { .grid.grid-covers{ grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 380px)  { .grid.grid-covers{ grid-template-columns: 1fr; } }

.cover-card{
  border-radius: 14px; overflow: hidden; text-decoration: none; color: inherit;
  border: 1px solid color-mix(in oklab, var(--border) 70%, var(--accent) 30%);
  background: color-mix(in oklab, var(--surface) 88%, black 12%);
  transition: transform .12s ease, box-shadow .16s ease, border-color .16s ease, filter .16s ease;
}
.cover-card:hover{
  transform: translateY(-2px);
  box-shadow: var(--shadow);
  border-color: color-mix(in oklab, var(--accent) 55%, var(--primary) 45%);
  filter: saturate(1.04);
}
.cover-thumb{ position: relative; aspect-ratio: 3/4; background: #0e171b; }
.cover-thumb img{ width: 100%; height: 100%; object-fit: cover; display: block; }
.cover-placeholder{ width: 100%; height: 100%; display: grid; place-items: center; font-size: 42px; opacity: .25; }

.chip{
  position: absolute; left: 8px; bottom: 8px;
  padding: 6px 10px; font-size: 12px; border-radius: 999px;
  background: color-mix(in oklab, #000 35%, #fff 65%);
  border: 1px solid color-mix(in oklab, var(--border) 60%, var(--accent) 40%);
  color: #07282e;
  backdrop-filter: blur(4px);
}
.chip.shelf { color: #0fd47b; }
.chip.borrowed { color: var(--warning); }

/* ===== Navbar ===== */
.navbar{
  position: sticky; top: 0; z-index: 1000;
  backdrop-filter: saturate(150%) blur(8px);
  border-bottom: 1px solid color-mix(in oklab, var(--border) 55%, var(--accent) 45%);
  background: var(--grad-nav);
  color: #ecfeff;
  box-shadow: 0 1px 0 rgba(255,255,255,.02);
}
.nav-inner{
  max-width: 1200px; margin: 0 auto;
  padding: clamp(10px, 1.6vw, 14px) 16px;
  display:flex; align-items:center; justify-content:space-between; gap:12px;
}
.brand{ display:inline-flex; align-items:center; gap:10px; text-decoration:none; color:inherit; }
.logo{
  width:36px; height:36px; object-fit:contain; border-radius:8px;
  border:1px solid rgba(255,255,255,.25); background: rgba(255,255,255,.08);
}
.brand-title{ font-weight:900; letter-spacing:.3px; text-shadow: 0 1px 0 rgba(0,0,0,.25); }

.nav-links{ display:flex; align-items:center; gap:10px; }
.nav-links a{
  padding:8px 12px; border-radius:10px; text-decoration:none; color:#ecfeff;
  background: color-mix(in oklab, #0f1418 70%, var(--accent) 30%);
  border: 1px solid color-mix(in oklab, var(--accent-3) 60%, var(--accent) 40%);
  transition: transform .12s ease, background .15s ease, border-color .15s ease;
}
.nav-links a:hover{
  background: color-mix(in oklab, var(--accent) 55%, #0f1418 45%);
  transform: translateY(-1px);
}
.nav-links a.active{
  font-weight: 800;
  border-color: color-mix(in oklab, var(--primary) 55%, var(--accent) 45%);
  box-shadow: inset 0 0 0 1px rgba(255,255,255,.06), 0 8px 22px rgba(6,182,212,.18);
}

/* Burger & mobile Nav */
.nav-toggle{
  display:none; appearance:none; border:1px solid color-mix(in oklab, var(--border) 60%, var(--accent) 40%);
  background: color-mix(in oklab, #0f1418 60%, var(--accent) 40%);
  padding:10px 12px; border-radius:12px; cursor:pointer; line-height:0; color:#ecfeff;
  box-shadow: 0 2px 8px rgba(0,0,0,.28);
}
.burger, .burger::before, .burger::after{
  content:""; display:block; width:22px; height:2px; background: currentColor; transition: transform .25s ease, opacity .25s ease;
}
.burger::before{ transform: translateY(-6px); }
.burger::after{ transform: translateY(4px); }
.nav-toggle.open .burger{ transform: rotate(45deg); }
.nav-toggle.open .burger::before{ transform: rotate(-90deg) translateX(-6px); }
.nav-toggle.open .burger::after{ opacity:0; }

.user-menu { position: relative; display: inline-block; margin-left: 2px; }
.user-btn{
  display:inline-flex; align-items:center; gap:8px;
  padding:8px 10px; border-radius:12px;
  border:1px solid color-mix(in oklab, var(--border) 60%, var(--accent) 40%);
  background: color-mix(in oklab, #0f1418 60%, var(--accent) 40%);
  cursor:pointer; color:#ecfeff;
}
.user-btn:hover{ background: color-mix(in oklab, var(--accent) 55%, #0f1418 45%); }
.avatar{
  width:28px; height:28px; border-radius:50%;
  display:grid; place-items:center; font-weight:800;
  background: color-mix(in oklab, var(--accent) 28%, #0f1418 72%);
  border:1px solid color-mix(in oklab, var(--accent) 50%, var(--border) 50%);
}
.user-menu-list{
  position:absolute; right:0; top:calc(100% + 8px);
  display:none; min-width:220px; padding:10px; border-radius:12px;
  background: var(--surface);
  border:1px solid color-mix(in oklab, var(--border) 70%, var(--accent) 30%);
  box-shadow: var(--shadow-lg); z-index: 80; color: var(--text);
}
.user-menu-list.open{ display:block; }

/* Mobile Navbar */
@media (max-width: 980px){
  .nav-toggle{ display:inline-flex; }
  .nav-links{
    position: fixed; inset: 56px 0 0 0;
    transform: translateY(-8px);
    opacity: 0; visibility: hidden;
    display: block; overflow:auto;
    padding: 12px 16px env(safe-area-inset-bottom);
    background:
      radial-gradient(800px 400px at 10% 0%, rgba(6,182,212,.12), transparent 60%),
      var(--grad-nav);
    border-top: 1px solid color-mix(in oklab, var(--border) 55%, var(--accent) 45%);
    transition: opacity .18s ease, transform .18s ease, visibility 0s linear .18s;
    z-index: 1100; /* sicher über Content */
  }
  .nav-links.open{ transform: translateY(0); opacity: 1; visibility: visible; }
  .nav-links a{ display:block; margin: 4px 0; padding: 12px; border-radius:12px; }
  .user-menu{ width:100%; margin-top:8px; }
  .user-btn{ width:100%; justify-content:space-between; }
  .nav-links.open .user-menu-list{
    position: static; display:none; box-shadow:none; border:1px solid var(--border); margin-top:8px;
  }
  /* Sichtbar, wenn geöffnet (Fix für Spezifität, funktioniert parallel zu aria-expanded) */
  .nav-links.open .user-menu-list.open { display:block; }
  .nav-links.open .user-menu[aria-expanded="true"] .user-menu-list { display:block; }
}

/* ===== Mobile Table Optimierungen ===== */
@media (max-width: 980px) { .table th, .table td { padding: 8px 10px; } }
@media (max-width: 720px) {
  .table-mobile th:nth-child(3),
  .table-mobile th:nth-child(4),
  .table-mobile th:nth-child(5),
  .table-mobile th:nth-child(6),
  .table-mobile td:nth-child(3),
  .table-mobile td:nth-child(4),
  .table-mobile td:nth-child(5),
  .table-mobile td:nth-child(6) { display: none; }
  .table-mobile td:nth-child(2) { max-width: 0; white-space: normal; }
  .table-mobile td:last-child{
    min-width: 180px;
    display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 8px;
  }
  .table-mobile td:last-child .btn{ margin: 0; text-align: center; padding: 10px 8px; }
  .badge.badge-icon { padding: 6px 10px; font-size: 13px; }
  .table .thumb { width: 40px; height: 56px; }
}
@media (max-width: 420px) { .table-mobile td:last-child { grid-template-columns: 1fr; } }

/* ===== Alerts ===== */
.alert{
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--surface-muted);
}
.alert.error{
  border-color: color-mix(in oklab, var(--danger) 35%, var(--border));
  background: color-mix(in oklab, var(--danger) 10%, var(--surface-muted));
  color: #ffd7db;
}

/* ===== Login ===== */
.login-wrap{ min-height: calc(100vh - 80px); display: grid; place-items: center; }
.login-card .logo-big{ width: 72px; height: 72px; border-radius: 14px; border:1px solid rgba(255,255,255,.2); }
.password-field{ display:flex; gap:8px; align-items:center; }
.password-field .btn{ min-width: 44px; }

/* ===========================================================
   THEMES (einfach am <body> die Klasse setzen)
   - theme-admin-slate
   - theme-nordic-blue
   - theme-light-admin
   =========================================================== */

/* THEME: Admin Slate (dark) – Türkis Leitfarbe, Orange CTA */
body.theme-admin-slate{
  --bg:#0c0f12; --text:#f2f7fa; --muted:#c9d4dc;
  --surface:#12171c; --surface-muted:#151b21; --border:#1e2630;

  --primary:#06b6d4; --primary-2:#22d3ee; --primary-3:#0a7080; /* Türkis */
  --accent:#f59e0b;  --accent-2:#ffb23a;  --accent-3:#a86d07;  /* Orange */

  --success:#22c55e; --warning:#f59e0b; --danger:#ef4444;

  --grad-soft:
    radial-gradient(900px 520px at 10% -10%, rgba(6,182,212,.10), transparent 55%),
    radial-gradient(800px 520px at 100% 0%, rgba(245,158,11,.10), transparent 55%),
    linear-gradient(180deg,#0c0f12 0%,#0a0d10 100%);
  --grad-primary: linear-gradient(135deg, var(--primary) 0%, var(--primary-2) 100%);
  --grad-accent:  linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 100%);
  --grad-nav: linear-gradient( to right,
               color-mix(in oklab,#0b0e11 65%, var(--primary) 35%),
               color-mix(in oklab,#0b0e11 65%, var(--accent) 35%) );
}

/* THEME: Nordic Blue (dark) – kühl, professionell (Standard im Dashboard) */
body.theme-nordic-blue{
  --bg:#0b1014; --text:#ecf4f8; --muted:#c5d3dc;
  --surface:#11171c; --surface-muted:#131b21; --border:#1a2530;

  --primary:#60a5fa; --primary-2:#93c5fd; --primary-3:#1e3a8a; /* Blau */
  --accent:#06b6d4;  --accent-2:#22d3ee; --accent-3:#0c7688;  /* Türkis */

  --success:#10b981; --warning:#f59e0b; --danger:#ef4444;

  --grad-soft:
    radial-gradient(900px 520px at 15% -10%, rgba(96,165,250,.10), transparent 60%),
    radial-gradient(800px 520px at 100% 0%, rgba(6,182,212,.10), transparent 60%),
    linear-gradient(180deg,#0b1014 0%, #091016 100%);
  --grad-primary: linear-gradient(135deg, var(--primary) 0%, var(--primary-2) 100%);
  --grad-accent:  linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 100%);
  --grad-nav: linear-gradient( to right,
               color-mix(in oklab,#0b1014 70%, var(--primary) 30%),
               color-mix(in oklab,#0b1014 70%, var(--accent) 30%) );
}

/* THEME: Light Admin (hell) – Orange CTA, Türkis Akzent */
body.theme-light-admin{
  --bg:#f7fafc; --text:#0f1720; --muted:#334155;

  --surface:#ffffff; --surface-muted:#f3f6f9; --border:#dbe3ea;

  --primary:#f59e0b; --primary-2:#ffb23a; --primary-3:#a86d07;
  --accent:#06b6d4;  --accent-2:#22d3ee; --accent-3:#0a7080;

  --success:#16a34a; --warning:#f59e0b; --danger:#dc2626;

  --grad-soft:
    radial-gradient(900px 520px at 10% -10%, rgba(245,158,11,.14), transparent 60%),
    radial-gradient(800px 520px at 100% 0%, rgba(6,182,212,.12), transparent 60%),
    linear-gradient(180deg,#f7fafc 0%, #f1f5f9 100%);
  --grad-primary: linear-gradient(135deg, var(--primary) 0%, var(--primary-2) 100%);
  --grad-accent:  linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 100%);
  --grad-nav: linear-gradient( to right,
               color-mix(in oklab,#ffffff 75%, var(--accent) 25%),
               color-mix(in oklab,#ffffff 75%, var(--primary) 25%) );
}

/* ===========================================================
   KG75 · Dashboard Patches (mobile-safe)
   =========================================================== */

/* Typo/Spacing in Cards */
.card h3 { color: var(--text); font-weight: 800; }

/* Verhindert Layout-Overflow bei sehr langen Titeln/Buttons */
.card { min-width: 0; }
.grid > * { min-width: 0; }

/* Cover-Metadaten klarer und einzeilig mit Ellipsis */
.cover-meta { padding: 8px 10px; }
.cover-title { font-weight: 800; line-height: 1.25; }
.cover-author { opacity: .85; }
.cover-title, .cover-author { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* Mobile-Navbar sicher ganz oben */
@media (max-width: 980px){
  .nav-links{ z-index: 1100; }
}

/* Mobile User-Dropdown sichtbar, wenn geöffnet (Fix für Spezifität) */
@media (max-width: 980px){
  .nav-links.open .user-menu-list.open { display:block; }
}

/* Optional: weniger Bewegung für Nutzer mit "Bewegung reduzieren" */
@media (prefers-reduced-motion: reduce){
  .nav-links{ transition: none; }
  .burger, .burger::before, .burger::after{ transition: none; }
}