@import url('https://fonts.googleapis.com/css2?family=Rubik:ital,wght@0,300..900;1,300..900&display=swap');
/* Ein einziger Link lädt alle Material Symbols (inkl. android, ios, laptop_windows etc.) */
@import url('https://fonts.googleapis.com/css2?family=Material+Symbols+Outlined:opsz,wght,FILL,GRAD@20..48,100..700,0..1,-50..200');

:root {
  --bg-dark: #121212;
  --bg-panel: #1d1d1f;
  --bg-hover: #2a2a2e;
  --text-main: #f5f5f7;
  --text-muted: #a1a1a6;
  --border-color: rgba(255, 255, 255, 0.1);
  --accent: #0071e3;
  --success: #34c759;
  --danger: #ff3b30;
  --warning: #ff9f0a;
  --radius: 12px;
  --font: 'Rubik', -apple-system, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: var(--font); background-color: var(--bg-dark); color: var(--text-main); overflow: hidden; }
.material-symbols-outlined { vertical-align: middle; font-size: 20px; }

/* --- App Layout --- */
.app-container { display: flex; height: 100vh; width: 100vw; }

/* --- Sidebar --- */
.sidebar { width: 260px; background-color: var(--bg-panel); border-right: 1px solid var(--border-color); display: flex; flex-direction: column; }
.sidebar-header { padding: 20px; display: flex; align-items: center; gap: 12px; font-weight: 600; font-size: 16px; border-bottom: 1px solid var(--border-color); }
.sidebar-logo { height: 24px; border-radius: 4px; }
.sidebar-nav { flex: 1; padding: 20px 0; display: flex; flex-direction: column; gap: 4px; overflow-y: auto; }
.nav-item { padding: 12px 24px; color: var(--text-muted); cursor: pointer; display: flex; align-items: center; gap: 12px; font-size: 14px; transition: 0.2s; border-left: 3px solid transparent; }
.nav-item:hover, .nav-item.active { background-color: var(--bg-hover); color: var(--text-main); border-left-color: var(--accent); }

/* --- Main Content --- */
.main-wrapper { flex: 1; display: flex; flex-direction: column; height: 100vh; }
.topbar { height: 65px; background-color: var(--bg-panel); border-bottom: 1px solid var(--border-color); display: flex; justify-content: space-between; align-items: center; padding: 0 32px; }
.topbar-title { font-size: 18px; font-weight: 500; }
.header-actions { display: flex; gap: 16px; }
.header-btn { background: none; border: none; color: var(--text-muted); cursor: pointer; display: flex; align-items: center; transition: 0.2s; }
.header-btn:hover { color: var(--text-main); }
@keyframes spin-fast { 100% { transform: rotate(360deg); } }
.is-spinning .material-symbols-outlined { animation: spin-fast 1s linear infinite; color: var(--accent); }

.content-area { flex: 1; padding: 32px; overflow-y: auto; background: var(--bg-dark); }
.content-section { display: none; } /* SPA Logic */
.content-section.active { display: block; animation: fadeIn 0.3s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

/* --- Grids & Tables --- */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 20px; margin-bottom: 32px; }
.stat-card { background: var(--bg-panel); border: 1px solid var(--border-color); border-radius: var(--radius); padding: 20px; display: flex; align-items: center; gap: 16px; }
.stat-icon { width: 48px; height: 48px; border-radius: 8px; background: rgba(255,255,255,0.05); display: flex; align-items: center; justify-content: center; }
.stat-info h3 { font-size: 12px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.05em; font-weight: 500; }
.stat-info p { font-size: 24px; font-weight: 600; margin-top: 4px; }

.table-container { background: var(--bg-panel); border: 1px solid var(--border-color); border-radius: var(--radius); overflow-x: auto; margin-bottom: 32px; }
.data-table { width: 100%; border-collapse: collapse; text-align: left; }
.data-table th, .data-table td { padding: 14px 20px; border-bottom: 1px solid var(--border-color); font-size: 14px; }
.data-table th { font-size: 11px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.05em; font-weight: 600; background: rgba(255,255,255,0.02); }
.data-table tr:hover td { background: var(--bg-hover); }
.data-table tr:last-child td { border-bottom: none; }

.badge { display: inline-flex; align-items: center; gap: 4px; padding: 4px 8px; border-radius: 6px; font-size: 12px; font-weight: 600; }
.badge.success { background: rgba(52, 199, 89, 0.15); color: var(--success); }
.badge.danger { background: rgba(255, 59, 48, 0.15); color: var(--danger); }
.badge.warning { background: rgba(255, 159, 10, 0.15); color: var(--warning); }
.badge.neutral { background: rgba(255, 255, 255, 0.1); color: var(--text-muted); }
.detail-sub { display: block; font-size: 12px; color: var(--text-muted); margin-top: 4px; }

.admin-footer { padding: 20px; text-align: center; font-size: 12px; color: var(--text-muted); border-top: 1px solid var(--border-color); }
.admin-footer a { color: var(--accent); text-decoration: none; }