/* Vermietungscockpit — schlichtes Mobile-first-CSS, kein Framework */
:root {
  --accent: #1d4ed8;
  --accent-dark: #1e40af;
  --ink: #1f2937;
  --muted: #6b7280;
  --line: #e5e7eb;
  --bg: #f9fafb;
  --ok-bg: #ecfdf5;  --ok-ink: #065f46;
  --warn-bg: #fef2f2; --warn-ink: #991b1b;
  --info-bg: #eff6ff; --info-ink: #1e40af;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.55;
}
.wrap { max-width: 720px; margin: 0 auto; padding: 0 16px; }
a { color: var(--accent); }

.site-header { background: #fff; border-bottom: 1px solid var(--line); }
.site-header nav { display: flex; align-items: center; justify-content: space-between; padding: 12px 16px; }
.brand { font-weight: 700; text-decoration: none; color: var(--ink); }
.nav-links { display: flex; gap: 14px; align-items: center; flex-wrap: wrap; }
.nav-links a { text-decoration: none; font-size: 15px; }

main { padding: 28px 16px 48px; min-height: 60vh; }
h1 { font-size: 1.6rem; margin: 0 0 16px; }
h2 { font-size: 1.2rem; margin: 28px 0 10px; }
.muted { color: var(--muted); font-size: 0.92rem; }

.card { background: #fff; border: 1px solid var(--line); border-radius: 10px; padding: 18px; margin: 0 0 16px; }
.form-narrow { max-width: 420px; }

label { display: block; margin: 0 0 12px; font-weight: 600; font-size: 0.95rem; }
input, select, textarea {
  display: block; width: 100%; margin-top: 4px; padding: 9px 10px;
  border: 1px solid #cbd5e1; border-radius: 7px; font: inherit; background: #fff;
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }

button, .btn, .btn-small {
  display: inline-block; background: var(--accent); color: #fff; border: 0;
  border-radius: 7px; padding: 10px 18px; font: inherit; font-weight: 600;
  cursor: pointer; text-decoration: none;
}
button:hover, .btn:hover { background: var(--accent-dark); }
.btn-small { padding: 6px 12px; font-size: 14px; }
.btn-ghost { background: #fff; color: var(--accent); border: 1px solid var(--accent); }
.btn-danger { background: #b91c1c; }

.alert-ok   { background: var(--ok-bg);   color: var(--ok-ink);   border-radius: 8px; padding: 10px 14px; margin: 0 0 16px; }
.alert-warn { background: var(--warn-bg); color: var(--warn-ink); border-radius: 8px; padding: 10px 14px; margin: 0 0 16px; }
.alert-info { background: var(--info-bg); color: var(--info-ink); border-radius: 8px; padding: 10px 14px; margin: 0 0 16px; }

table { width: 100%; border-collapse: collapse; background: #fff; border: 1px solid var(--line); border-radius: 10px; overflow: hidden; }
th, td { text-align: left; padding: 9px 12px; border-bottom: 1px solid var(--line); font-size: 0.95rem; }
th { background: #f3f4f6; }
tr:last-child td { border-bottom: 0; }

.badge { display: inline-block; border-radius: 999px; padding: 2px 10px; font-size: 0.8rem; font-weight: 600; }
.badge-ok   { background: var(--ok-bg);   color: var(--ok-ink); }
.badge-warn { background: var(--warn-bg); color: var(--warn-ink); }
.badge-info { background: var(--info-bg); color: var(--info-ink); }

.site-footer { border-top: 1px solid var(--line); background: #fff; }
.site-footer .wrap { display: flex; justify-content: space-between; gap: 10px; flex-wrap: wrap; padding: 16px; font-size: 0.9rem; color: var(--muted); }
.site-footer a { color: var(--muted); }

.potential { font-size: 1.25rem; font-weight: 700; color: var(--ok-ink); }

@media (max-width: 540px) {
  .row2 { grid-template-columns: 1fr; }
  .site-header nav { flex-direction: column; gap: 8px; }
}