:root {
  --bg: #0b1220; --bg2: #0f172a; --panel: #161f36; --panel2: #101a30; --text: #e5e9f2; --muted: #8e9bb3;
  --accent: #34d399; --accent-dark: #052e1c; --accent2: #38bdf8; --warn: #f59e0b; --danger: #f87171; --border: #26314d;
  --radius: 14px; --radius-sm: 9px;
  --shadow: 0 1px 2px rgba(0,0,0,.25), 0 8px 24px -12px rgba(0,0,0,.5);
}
* { box-sizing: border-box; }
body {
  margin:0;
  font-family: 'Segoe UI', system-ui, -apple-system, Roboto, Arial, sans-serif;
  background: radial-gradient(1200px 600px at 20% -10%, #14213f 0%, transparent 60%), var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}
a { color: #7dd3fc; transition: color .15s ease; }
a:visited { color: #a5b4fc; }
a:hover { color: #bae6fd; }

/* --- Sidebar-Layout --- */
.sidebar-toggle-state { display:none; }
.sidebar-toggle-btn { display:none; }
.sidebar-overlay { display:none; }

.sidebar {
  position: fixed; top:0; left:0; bottom:0; width: 236px;
  background: rgba(16,23,42,.92); backdrop-filter: blur(10px);
  border-right:1px solid var(--border); padding: 20px 14px; overflow-y:auto; z-index: 20;
}
.brand { font-weight:800; font-size:1.05rem; letter-spacing:-.01em; padding: 0 10px 18px; }
.nav { display:flex; flex-direction:column; gap:2px; }
.nav-group-label {
  color: var(--muted); font-size:.68rem; text-transform:uppercase; letter-spacing:.08em; font-weight:700;
  padding: 14px 10px 4px;
}
.nav a {
  color: var(--muted); text-decoration:none; padding: 8px 10px;
  border-radius: var(--radius-sm); font-size:.9rem; font-weight:500; transition: background .15s ease, color .15s ease;
}
.nav a:hover { background: var(--panel2); color: var(--text); }
.nav a.active { background: var(--accent); color: var(--accent-dark); font-weight:700; }
.nav-logout-btn {
  width:100%; text-align:left; color: var(--muted); background:none; border:none; cursor:pointer;
  padding: 8px 10px; border-radius: var(--radius-sm); font-size:.9rem; font-weight:500; font-family:inherit;
}
.nav-logout-btn:hover { background: var(--panel2); color: var(--danger); }

.content { max-width: 980px; margin: 0 auto; padding: 24px 24px 60px; margin-left: calc(236px + max(0px, (100vw - 236px - 980px) / 2)); }

.tabstrip { display:flex; gap:4px; margin-bottom:16px; border-bottom:1px solid var(--border); padding-bottom:0; flex-wrap:wrap; }
.tabstrip a {
  color: var(--muted); text-decoration:none; padding: 9px 14px; font-size:.86rem; font-weight:600;
  border-bottom: 2px solid transparent; margin-bottom:-1px; transition: color .15s ease, border-color .15s ease;
}
.tabstrip a:hover { color: var(--text); }
.tabstrip a.active { color: var(--accent); border-bottom-color: var(--accent); }

@media (max-width: 900px) {
  .content { margin-left:0; max-width: 100%; }
  .sidebar {
    transform: translateX(-100%); transition: transform .2s ease; width: 260px; box-shadow: 0 0 40px rgba(0,0,0,.5);
  }
  .sidebar-toggle-btn {
    display:flex; align-items:center; justify-content:center; position: fixed; top:12px; left:12px; z-index: 30;
    width:40px; height:40px; border-radius: var(--radius-sm); background: var(--panel); border:1px solid var(--border);
    color: var(--text); font-size:1.1rem; cursor:pointer;
  }
  .sidebar-toggle-state:checked ~ .sidebar { transform: translateX(0); }
  .sidebar-overlay {
    display:none; position: fixed; inset:0; background: rgba(0,0,0,.5); z-index: 19;
  }
  .sidebar-toggle-state:checked ~ .sidebar-overlay { display:block; }
  .content { padding-top: 64px; }
}

.card {
  background: linear-gradient(180deg, var(--panel) 0%, var(--panel2) 100%);
  border:1px solid var(--border); border-radius: var(--radius); padding: 18px 22px; margin-bottom: 16px;
  box-shadow: var(--shadow);
}
.card h2, .card h3 { margin-top:0; letter-spacing:-.01em; }
.grid { display:grid; grid-template-columns: repeat(auto-fit, minmax(220px,1fr)); gap:14px; }
.big-number { font-size: 2.2rem; font-weight: 800; color: var(--accent); letter-spacing:-.02em; }
.hero {
  background: linear-gradient(135deg, #0f3d28 0%, #0b1220 75%);
  border:1px solid rgba(52,211,153,.35);
}
.hero .label { color: var(--muted); font-size:.82rem; text-transform:uppercase; letter-spacing:.07em; font-weight:600; }
.kv { display:flex; justify-content:space-between; align-items:baseline; padding:8px 0; border-bottom: 1px solid var(--border); gap:12px; }
.kv:last-child { border-bottom:none; }
.kv .v { font-weight:600; text-align:right; }
.section-title { font-size:.78rem; text-transform:uppercase; color: var(--muted); letter-spacing:.07em; font-weight:700; margin: 20px 0 8px; }
.section-title:first-child { margin-top:0; }

.badge { display:inline-block; padding:3px 10px; border-radius: 999px; font-size:.74rem; font-weight:700; letter-spacing:.01em; }
.badge.offen { background:#4a2410; color:#fdba74; }
.badge.vorgesehen { background:#432a08; color:#fcd34d; }
.badge.ausgezahlt { background:#0f3d28; color:#86efac; }
.badge.warn { background: #4a2410; color:#fdba74; }
.badge.ok { background:#0f3d28; color:#86efac; }
.badge.erstattung { background:#0f3d28; color:#86efac; }
.badge.nachzahlung { background:#4a1414; color:#fca5a5; }
.badge.gering { background:#432a08; color:#fcd34d; }

table { width:100%; border-collapse: collapse; font-size:.92rem; }
th, td { text-align:left; padding: 10px 12px; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-weight:700; font-size:.76rem; text-transform:uppercase; letter-spacing:.04em; }
tbody tr { transition: background .12s ease; }
tr:hover td { background: rgba(148,163,184,.06); }

form.stack { display:flex; flex-direction:column; gap:13px; max-width: 480px; }
label { font-size:.83rem; color: var(--muted); display:block; margin-bottom:5px; font-weight:500; }
input, select, textarea {
  width:100%; padding: 10px 12px; border-radius: var(--radius-sm); border:1px solid var(--border);
  background: rgba(11,18,32,.6); color: var(--text); font-size: .96rem; transition: border-color .15s ease, box-shadow .15s ease;
}
input:focus, select:focus, textarea:focus {
  outline:none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(52,211,153,.18);
}
button, .btn {
  background: linear-gradient(180deg, #3ee0a4, var(--accent)); color: var(--accent-dark); border:none;
  padding:10px 20px; border-radius: var(--radius-sm); font-weight:700; cursor:pointer; text-decoration:none;
  display:inline-block; font-size:.94rem; transition: transform .1s ease, filter .15s ease;
}
button:hover, .btn:hover { filter: brightness(1.06); }
button:active, .btn:active { transform: translateY(1px); }
button.secondary, .btn.secondary { background: var(--panel2); color: var(--text); border:1px solid var(--border); }
.btn.small { padding:6px 13px; font-size:.82rem; }

.warning-box { background:#3a2308; border:1px solid var(--warn); color:#fde68a; padding:13px 16px; border-radius: var(--radius-sm); margin-bottom:14px; }
.warning-box ul { margin:6px 0 0; padding-left:18px; }
.muted { color: var(--muted); }
.pos { color: var(--accent); }
.detail-toggle summary { cursor:pointer; color: var(--accent2); font-size:.85rem; font-weight:600; }

.cal-grid { display:grid; grid-template-columns: repeat(7, 1fr); gap:5px; }
.cal-cell { min-height: 68px; background: var(--panel2); border-radius: var(--radius-sm); padding:6px; font-size:.78rem; border:1px solid var(--border); transition: border-color .15s ease; }
.cal-cell:hover { border-color: #3a4666; }
.cal-cell.today { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent) inset; }
.cal-cell .daynum { color: var(--muted); display:flex; align-items:center; gap:5px; }
.cal-shift { background: var(--accent); color: var(--accent-dark); border-radius:6px; padding:2px 5px; margin-top:3px; font-size:.72rem; display:block; text-decoration:none; font-weight:700;}
.ampel { display:inline-block; width:8px; height:8px; border-radius:50%; vertical-align:middle; }
.ampel-gruen { background:#22c55e; }
.ampel-gelb { background:#eab308; }
.cal-abwesenheit { color:#0f172a; }
.cal-abwesenheit-urlaub { background: var(--accent2); }
.cal-abwesenheit-fortbildung { background: #a78bfa; }
.cal-abwesenheit-krankheit { background: var(--danger); color:#fff; }
.cal-head { text-align:center; color: var(--muted); font-size:.72rem; font-weight:600; text-transform:uppercase; letter-spacing:.05em; padding-bottom:6px;}

@media (max-width: 640px) {
  .big-number { font-size: 1.7rem; }
  .cal-cell { min-height: 52px; font-size:.7rem;}
}