:root {
  --bg: #f6f7f9;
  --panel: #ffffff;
  --text: #222;
  --muted: #6b7280;
  --brand: #2b6cb0;
  --active: #16a34a;
  --border: #e5e7eb;
}

* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body { background: var(--bg); color: var(--text); font: 16px/1.5 system-ui, -apple-system, Segoe UI, Roboto, "Helvetica Neue", Arial; }

.layout { min-height: 100vh; display: grid; grid-template-columns: 260px 1fr; }

.sidebar {
  background: var(--panel);
  border-right: 1px solid var(--border);
  padding: 20px 16px;
  position: sticky; top: 0; height: 100vh;
  display: flex; flex-direction: column; gap: 16px;
}
.brand a { font-weight: 700; text-decoration: none; color: var(--brand); font-size: 18px; }
.nav { display: flex; flex-direction: column; gap: 8px; }
.nav a { text-decoration: none; color: var(--text); padding: 10px 12px; border-radius: 10px; }
.nav a.active { background: #e7f7ec; color: var(--active); font-weight: 600; }

.content { padding: 24px; }

@media (max-width: 900px) {
  .layout { grid-template-columns: 1fr; }
  .sidebar { position: static; height: auto; border-right: 0; border-bottom: 1px solid var(--border); }
}

@media (max-width: 600px) {
  body { font-size: 15px; }
  .sidebar {
    padding: 12px;
    gap: 12px;
  }
  .brand a { font-size: 20px; }
  .nav {
    flex-direction: row;
    gap: 6px;
    overflow-x: auto;
    scrollbar-width: none;
  }
  .nav::-webkit-scrollbar { display: none; }
  .nav a {
    flex: 0 0 auto;
    padding: 8px 10px;
    font-size: 14px;
  }
  .content { padding: 16px 12px 32px; }
  .container { padding: 8px 0; }
  .form-grid { gap: 10px; }
  .actions { grid-template-columns: 1fr; }
}

/* -------- Helpers / Cards / Form -------- */
.container { max-width: 1100px; margin: 0 auto; padding: 12px 16px; }
.stack { display: flex; flex-direction: column; gap: 16px; }

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 18px;
  box-shadow: 0 1px 2px rgba(0,0,0,.04);
}

.section-title { margin: 0 0 14px; font-size: 22px; font-weight: 700; }
.kicker { color: var(--muted); font-size: 13px; }

.form-grid { display: grid; grid-template-columns: repeat(2, minmax(260px, 1fr)); gap: 14px 20px; }
@media (max-width: 900px) { .form-grid { grid-template-columns: 1fr; } }
.field { display: flex; flex-direction: column; gap: 8px; }
.field label { font-size: 13px; color: var(--muted); }
.field input[type="text"], .field input[type="number"], .field select, .field textarea {
  width: 100%; padding: 8px 10px; border: 1px solid var(--border); border-radius: 10px; background: #fff;
}
.col-span-2 { grid-column: 1 / -1; }

.actions { display: grid; grid-template-columns: repeat(3, minmax(160px, 1fr)); gap: 12px; margin-top: 12px; }
@media (max-width: 900px) { .actions { grid-template-columns: 1fr 1fr; } }

.header-inline { display: flex; flex-direction: column; gap: 4px; }
.option-row { display: flex; flex-wrap: wrap; gap: 16px; align-items: center; }
.option-row__item { display: flex; align-items: center; gap: 8px; font-weight: 500; }
.option-row__item input { margin: 0; }

.btn{
  appearance:none;border:1px solid var(--border);
  border-radius:10px;padding:10px 14px;font-weight:600;cursor:pointer;
  background:#fff;color:var(--text);
}
.btn:hover{box-shadow:0 1px 2px rgba(0,0,0,.06)}
.btn-primary{background:#22c55e;color:#fff;border-color:#22c55e}
.btn-primary:hover{filter:brightness(0.98)}
.btn-secondary{background:#10b981;color:#fff;border-color:#10b981}
.btn-warn{background:#ef4444;color:#fff;border-color:#ef4444}
.btn:disabled{opacity:.6;cursor:not-allowed}

.ergebnis-highlight { font-weight: 700; }

body.modal-open { overflow: hidden; }

.modal-overlay {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  z-index: 2000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

.modal-overlay.is-visible {
  opacity: 1;
  pointer-events: auto;
}

.modal-overlay[hidden] {
  display: none !important;
}

.modal-overlay__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.65);
  backdrop-filter: blur(2px);
}

.modal-overlay__panel {
  position: relative;
  width: min(960px, 100%);
  max-height: 90vh;
  overflow-y: auto;
  background: var(--panel);
  border-radius: 18px;
  box-shadow: 0 30px 60px rgba(15, 23, 42, 0.3);
  padding: 24px;
  z-index: 1;
}

.modal-overlay__body {
  overflow-y: auto;
}

.modal-overlay__close {
  position: absolute;
  top: 12px;
  right: 12px;
  border: none;
  background: transparent;
  font-size: 24px;
  line-height: 1;
  cursor: pointer;
  color: var(--muted);
}

.modal-overlay__loading {
  padding: 60px 20px;
  text-align: center;
  color: var(--muted);
}