:root{
  --primary:#0a4ea2;
  --secondary:#7ab51d;
  --bg:#f3f4f6;
  --card:#ffffff;
  --text:#1f2430;
  --muted:#6b7280;
  --border:#e4e7eb;
  --ok:#1f9d55;
  --warn:#d98c00;
  --err:#c0392b;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  background:var(--bg);color:var(--text);line-height:1.5;
  -webkit-text-size-adjust:100%;
}
.app-header{background:var(--primary);color:#fff}
.app-header__inner{max-width:880px;margin:0 auto;padding:12px 16px;display:flex;flex-direction:column;align-items:center;gap:8px;text-align:center}
.app-logo{max-height:56px;width:auto;max-width:100%;height:auto;background:#fff;border-radius:6px;padding:4px}
/* Logo-Vorschau im Backend: nie breiter als die Karte, Seitenverhältnis bleibt erhalten. */
.logo-preview{display:block;max-width:100%;height:auto;max-height:6rem;border:1px solid var(--border);border-radius:6px;background:#fff;padding:4px}
.app-title{display:flex;flex-direction:column;line-height:1.2}
.app-date{font-size:.8rem;opacity:.85}
.app-main{max-width:880px;margin:0 auto;padding:16px}
/* Breite Ansicht fuer Listen: nahezu volle verfuegbare Breite (bis 1600px). */
.app-main--wide{max-width:min(1600px, calc(100vw - 48px))}
.app-main--wide .card{max-width:none;width:100%}
.app-main--wide .admin-nav{max-width:none}
.app-footer{max-width:880px;margin:24px auto;padding:0 16px;color:var(--muted);text-align:center}

.card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:20px;margin:0 auto 16px;max-width:680px}
.card--narrow{max-width:420px}
.card--center{text-align:center}
.card--scan{max-width:520px}
h1{font-size:1.4rem;margin:.2em 0 .4em}
h2{font-size:1.05rem;margin:1.4em 0 .5em}
.lead{color:var(--muted);margin-top:0}
.muted{color:var(--muted)}
.small{font-size:.85rem}

label{display:block;margin:0 0 14px;font-weight:600;font-size:.92rem}
input,select,textarea{
  width:100%;padding:11px 12px;margin-top:5px;border:1px solid var(--border);
  border-radius:8px;font-size:1rem;font-weight:400;background:#fff;color:var(--text)
}
input[type=color]{height:46px;padding:4px}
input[type=file]{padding:8px}
.field-error{display:block;color:var(--err);font-weight:400;font-size:.85rem;margin-top:4px}

.btn{display:inline-block;border:none;border-radius:8px;padding:12px 18px;font-size:1rem;
  font-weight:600;cursor:pointer;text-decoration:none;text-align:center}
.btn--primary{background:var(--primary);color:#fff}
.btn--secondary{background:var(--secondary);color:#fff}
.btn--ghost{background:#eef1f5;color:var(--text)}
.btn--danger{color:var(--err)}
.btn--sm{padding:7px 12px;font-size:.85rem}
.btn-row{display:flex;flex-wrap:wrap;gap:10px;margin:14px 0}
.inline{display:inline}
.row-form{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.row-form input{width:auto;flex:1 1 160px;margin-top:0}

.alert{padding:12px 14px;border-radius:8px;margin:0 0 14px;font-size:.95rem}
.alert--info{background:#e8f1fb;color:#0a4ea2}
.alert--warn{background:#fff4e0;color:#8a5a00}
.alert--error{background:#fdecea;color:#a32519}

.review{display:grid;grid-template-columns:1fr 1fr;gap:6px 14px;margin:14px 0}
.review dt{color:var(--muted);font-size:.85rem}
.review dd{margin:0;font-weight:600}
.review__email{font-size:1.15rem;color:var(--primary);background:#eef5ff;padding:6px 10px;border-radius:6px;grid-column:span 1}

.qr-box{margin:18px auto;display:inline-block;padding:12px;background:#fff;border:1px solid var(--border);border-radius:12px}
.qr-img{display:block;width:260px;height:260px;max-width:80vw;max-height:80vw}

.stats{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin:14px 0}
.stat{background:#f7f9fc;border:1px solid var(--border);border-radius:10px;padding:14px;text-align:center}
.stat__num{display:block;font-size:1.8rem;font-weight:700;color:var(--primary)}
.stat__lbl{color:var(--muted);font-size:.85rem}
@media(min-width:560px){.stats{grid-template-columns:repeat(4,1fr)}}

.linkbox{margin:10px 0}
.linkbox label{font-size:.8rem;color:var(--muted);font-weight:600}
.linkbox input{font-family:monospace;font-size:.85rem}

/* QR-Code zu einem Link inkl. Download-Button */
.qr-link{display:flex;flex-direction:column;align-items:flex-start;gap:10px;margin-top:12px}
.qr-link__img{display:block;width:220px;max-width:100%;height:auto;background:#fff;border:1px solid var(--border);border-radius:8px;padding:8px}

.table{width:100%;border-collapse:collapse;font-size:.92rem}
.table th,.table td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--border);vertical-align:middle}
.table th{color:var(--muted);font-size:.78rem;text-transform:uppercase;letter-spacing:.03em;white-space:nowrap}
.table tbody tr:hover{background:#f7f9fc}
/* Auf kleinen Displays horizontal scrollen, statt Inhalte zu quetschen. */
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
.table-scroll .table{min-width:820px}
.actions{white-space:nowrap;text-align:right}
.table td.actions .btn{margin-left:6px}

.badge{display:inline-block;background:#eef1f5;color:var(--muted);border-radius:20px;padding:2px 9px;font-size:.75rem;font-weight:600}
.badge--ok{background:#e3f4ea;color:var(--ok)}
.badge--warn{background:#fdecd6;color:var(--warn)}

/* Admin-Navigation: links die Seiten, "Abmelden" rechts; auf allen Seiten identisch. */
.admin-nav{display:flex;flex-wrap:wrap;gap:6px;max-width:none;margin:0 0 16px;align-items:center}
.admin-nav a{padding:8px 12px;border-radius:8px;text-decoration:none;color:var(--text);background:#fff;border:1px solid var(--border);font-size:.9rem;font-weight:600}
.admin-nav a:hover{border-color:var(--primary);color:var(--primary)}
.admin-nav__logout{margin-left:auto}

/* Untergliederung breiter Seiten in Abschnitts-Karten. */
.panel-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:16px;align-items:start;margin:14px 0}
.panel{background:#f9fafb;border:1px solid var(--border);border-radius:10px;padding:16px}
.panel > h2:first-child,.panel > h1:first-child{margin-top:0}
.panel h2{font-size:1rem;margin:0 0 12px}
.panel :last-child{margin-bottom:0}

/* Scanner */
.scan-top{display:flex;justify-content:space-between;align-items:center;font-size:.9rem;margin-bottom:8px}
.scan-result{padding:18px;border-radius:10px;text-align:center;font-size:1.4rem;font-weight:700;margin:12px 0}
.scan-result--idle{background:#eef1f5;color:var(--muted);font-size:1rem;font-weight:600}
.scan-result--ok{background:#e3f4ea;color:var(--ok)}
.scan-result--already{background:#fff4e0;color:var(--warn)}
.scan-result--invalid{background:#fdecea;color:var(--err)}
.scan-video-wrap{position:relative;width:100%;aspect-ratio:1/1;background:#000;border-radius:12px;overflow:hidden}
#video{width:100%;height:100%;object-fit:cover}
.scan-frame{position:absolute;inset:18%;border:3px solid rgba(255,255,255,.8);border-radius:14px;pointer-events:none}
.manual{margin-top:14px}
.manual-form{display:flex;gap:8px;margin-top:8px}
.manual-form input{margin-top:0}

hr{border:none;border-top:1px solid var(--border);margin:20px 0}

/* Seitentexte-Editor */
.text-field{margin:0 0 18px;padding:0 0 14px;border-bottom:1px dashed var(--border)}
.text-field label{margin-bottom:4px}
.text-field textarea{margin-top:5px;resize:vertical;min-height:64px;font-family:inherit;line-height:1.45}
.field-help{display:block;color:var(--muted);font-size:.82rem;margin-top:5px}
.below-form{margin-top:14px}
textarea{width:100%;padding:11px 12px;border:1px solid var(--border);border-radius:8px;font-size:1rem;background:#fff;color:var(--text)}