:root {
  --navy: #1f3a5f;
  --navy-2: #2c4e7a;
  --akzent: #0f8b8d;
  --akzent-hell: #e3f4f4;
  --text: #1d2733;
  --gedimmt: #64707d;
  --linie: #e1e6ec;
  --flaeche: #f4f6f9;
  --karte: #ffffff;
  --ok: #1e8e4e;
  --ok-hell: #e6f5ec;
  --warn: #b26a00;
  --warn-hell: #fff4e0;
  --fehler: #c0392b;
  --fehler-hell: #fdecea;
  --radius: 10px;
  --schatten: 0 1px 2px rgba(16, 24, 40, .06), 0 1px 3px rgba(16, 24, 40, .08);
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 14.5px; line-height: 1.5; color: var(--text); background: var(--flaeche);
}
a { color: var(--navy-2); text-decoration: none; }
a:hover { text-decoration: underline; }
h1 { font-size: 1.55rem; margin: 0 0 .25rem; letter-spacing: -.01em; }
h2 { font-size: 1.1rem; margin: 0 0 .75rem; }
h3 { font-size: .95rem; margin: 0 0 .5rem; }
.gedimmt { color: var(--gedimmt); }
.klein { font-size: .85em; }
.rechts { text-align: right; }
.nowrap { white-space: nowrap; }
.mono { font-family: ui-monospace, "SF Mono", Menlo, monospace; font-size: .9em; }

/* ---------- Layout Verwaltung ---------- */
.app { display: grid; grid-template-columns: 232px 1fr; min-height: 100vh; }
.sidebar { background: var(--navy); color: #cfd9e6; padding: 18px 12px; position: sticky; top: 0; height: 100vh; overflow-y: auto; }
.marke { display: flex; align-items: center; gap: 10px; color: #fff; font-weight: 700; font-size: 1.05rem; padding: 4px 10px 18px; }
.marke .logo { width: 32px; height: 32px; border-radius: 8px; background: var(--akzent); display: grid; place-items: center; font-size: .8rem; letter-spacing: .02em; }
.sidebar nav a { display: flex; justify-content: space-between; align-items: center; color: #cfd9e6; padding: 8px 12px; border-radius: 8px; margin-bottom: 2px; }
.sidebar nav a:hover { background: rgba(255,255,255,.08); text-decoration: none; color: #fff; }
.sidebar nav a.aktiv { background: rgba(255,255,255,.14); color: #fff; font-weight: 600; }
.sidebar .gruppe { font-size: .72rem; text-transform: uppercase; letter-spacing: .08em; color: #8ea3bd; padding: 16px 12px 6px; }
.sidebar .zahl { background: var(--akzent); color: #fff; border-radius: 99px; font-size: .75rem; padding: 0 8px; font-weight: 600; }
.sidebar .zahl.rot { background: var(--fehler); }
.sidebar .fuss { border-top: 1px solid rgba(255,255,255,.12); margin-top: 18px; padding: 14px 12px 0; font-size: .85rem; }
.haupt { padding: 26px 32px 60px; max-width: 1400px; width: 100%; }
.kopf { display: flex; justify-content: space-between; align-items: flex-end; gap: 16px; margin-bottom: 20px; flex-wrap: wrap; }

/* ---------- Bausteine ---------- */
.karte { background: var(--karte); border: 1px solid var(--linie); border-radius: var(--radius); box-shadow: var(--schatten); padding: 18px 20px; margin-bottom: 18px; }
.karte.eng { padding: 0; overflow: hidden; }
.karte.eng > h2 { padding: 16px 20px 0; }
.raster { display: grid; gap: 18px; }
.raster.k4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.raster.k3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.raster.k2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.raster.split { grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); align-items: start; }
.kennzahl { display: block; color: inherit; }
.kennzahl:hover { text-decoration: none; border-color: var(--akzent); }
.kennzahl .wert { font-size: 1.9rem; font-weight: 700; letter-spacing: -.02em; }
.kennzahl .label { color: var(--gedimmt); font-size: .88rem; }
.kennzahl.warn .wert { color: var(--warn); }
.kennzahl.rot .wert { color: var(--fehler); }

table { width: 100%; border-collapse: collapse; }
th, td { padding: 9px 12px; text-align: left; border-bottom: 1px solid var(--linie); vertical-align: top; }
th { font-size: .78rem; text-transform: uppercase; letter-spacing: .04em; color: var(--gedimmt); font-weight: 600; background: #fafbfc; }
tr:last-child td { border-bottom: 0; }
tbody tr:hover td { background: #fafcff; }
td.zahl, th.zahl { text-align: right; white-space: nowrap; font-variant-numeric: tabular-nums; }
tfoot td { font-weight: 700; border-top: 2px solid var(--linie); background: #fafbfc; }
.tabelle-scroll { overflow-x: auto; }

.badge { display: inline-block; padding: 2px 9px; border-radius: 99px; font-size: .76rem; font-weight: 600; background: var(--flaeche); color: var(--gedimmt); white-space: nowrap; }
.badge.ok { background: var(--ok-hell); color: var(--ok); }
.badge.warn { background: var(--warn-hell); color: var(--warn); }
.badge.rot { background: var(--fehler-hell); color: var(--fehler); }
.badge.blau { background: #e8eef7; color: var(--navy-2); }
.badge.akzent { background: var(--akzent-hell); color: var(--akzent); }

.btn { display: inline-flex; align-items: center; gap: 6px; border: 1px solid var(--linie); background: #fff; color: var(--text); padding: 8px 14px; border-radius: 8px; font: inherit; font-weight: 600; cursor: pointer; text-decoration: none; line-height: 1.2; }
.btn:hover { text-decoration: none; border-color: #c5ced9; background: #fafbfc; }
.btn.primaer { background: var(--akzent); border-color: var(--akzent); color: #fff; }
.btn.primaer:hover { background: #0b7476; }
.btn.navy { background: var(--navy); border-color: var(--navy); color: #fff; }
.btn.gefahr { color: var(--fehler); }
.btn.klein { padding: 4px 10px; font-size: .85rem; }
.btn-reihe { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }

.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--linie); margin-bottom: 16px; flex-wrap: wrap; }
.tabs a { padding: 8px 14px; color: var(--gedimmt); border-bottom: 2px solid transparent; margin-bottom: -1px; font-weight: 500; }
.tabs a.aktiv { color: var(--navy); border-color: var(--akzent); font-weight: 600; }
.tabs a:hover { text-decoration: none; color: var(--navy); }

form p { margin: 0 0 12px; }
label { display: block; font-weight: 600; font-size: .85rem; margin-bottom: 4px; }
input[type=text], input[type=email], input[type=number], input[type=date], input[type=password], select, textarea {
  width: 100%; padding: 8px 10px; border: 1px solid #cdd5df; border-radius: 8px; font: inherit; background: #fff; color: var(--text);
}
input:focus, select:focus, textarea:focus { outline: 2px solid rgba(15,139,141,.25); border-color: var(--akzent); }
.helptext { display: block; color: var(--gedimmt); font-size: .8rem; margin-top: 2px; }
.errorlist { color: var(--fehler); margin: 4px 0; padding-left: 18px; font-size: .85rem; }
.formraster { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 16px; }
.formraster .voll { grid-column: 1 / -1; }

.meldungen { list-style: none; padding: 0; margin: 0 0 18px; }
.meldungen li { padding: 10px 14px; border-radius: 8px; margin-bottom: 8px; background: #e8eef7; border-left: 4px solid var(--navy-2); }
.meldungen li.success { background: var(--ok-hell); border-color: var(--ok); }
.meldungen li.warning { background: var(--warn-hell); border-color: var(--warn); }
.meldungen li.error { background: var(--fehler-hell); border-color: var(--fehler); }

.hinweis { padding: 10px 14px; border-radius: 8px; background: var(--warn-hell); color: #6b4300; margin-bottom: 12px; white-space: pre-line; }
.hinweis.info { background: #e8eef7; color: var(--navy); }
.hinweis.ok { background: var(--ok-hell); color: #11522c; }
.hinweis.rot { background: var(--fehler-hell); color: #7a1d14; }
.leer { padding: 28px; text-align: center; color: var(--gedimmt); }

.dropzone { border: 2px dashed #c5ced9; border-radius: var(--radius); padding: 22px; text-align: center; background: #fafbfc; transition: .15s; }
.dropzone.aktiv { border-color: var(--akzent); background: var(--akzent-hell); }
.dropzone input[type=file] { margin: 10px auto 0; display: block; }

/* Rechnung prüfen */
.pruefen { display: grid; grid-template-columns: minmax(0, 1fr) minmax(420px, 560px); gap: 18px; align-items: start; }
.vorschau { position: sticky; top: 16px; height: calc(100vh - 120px); background: #525659; border-radius: var(--radius); overflow: hidden; }
.vorschau iframe, .vorschau img { width: 100%; height: 100%; border: 0; object-fit: contain; background: #fff; }
.positionen td { padding: 6px 6px; border: 0; }
.positionen select, .positionen input { padding: 6px 8px; }
.summe-zeile { display: flex; justify-content: space-between; padding: 10px 6px; border-top: 1px solid var(--linie); font-weight: 600; }
.summe-zeile.falsch { color: var(--fehler); }
.ki-grund { font-size: .78rem; color: var(--gedimmt); padding: 0 6px 6px; }
.konfidenz-hoch { color: var(--ok); } .konfidenz-mittel { color: var(--warn); } .konfidenz-niedrig { color: var(--fehler); }

.verlauf { display: flex; flex-direction: column; gap: 10px; }
.nachricht { padding: 10px 14px; border-radius: 10px; background: var(--flaeche); max-width: 85%; }
.nachricht.verwaltung { background: #e8eef7; align-self: flex-end; }
.nachricht.intern { background: var(--warn-hell); border: 1px dashed var(--warn); align-self: flex-end; }
.nachricht .meta { font-size: .78rem; color: var(--gedimmt); margin-bottom: 2px; }
.fotos { display: flex; gap: 8px; flex-wrap: wrap; }
.fotos a img { width: 110px; height: 110px; object-fit: cover; border-radius: 8px; border: 1px solid var(--linie); }

/* ---------- Login ---------- */
.login-seite { min-height: 100vh; display: grid; place-items: center; padding: 20px; background: linear-gradient(160deg, var(--navy) 0%, #2b5a87 100%); }
.login-box { background: #fff; border-radius: 14px; padding: 32px; width: 100%; max-width: 400px; box-shadow: 0 20px 50px rgba(0,0,0,.25); }
.login-box .marke { color: var(--navy); padding: 0 0 18px; }

/* ---------- Mieterportal ---------- */
.portal-kopf { background: var(--navy); color: #fff; }
.portal-kopf .innen { max-width: 880px; margin: 0 auto; padding: 14px 16px; display: flex; justify-content: space-between; align-items: center; gap: 10px; }
.portal-kopf .marke { padding: 0; }
.portal-kopf a { color: #cfd9e6; }
.portal-nav { background: #fff; border-bottom: 1px solid var(--linie); }
.portal-nav .innen { max-width: 880px; margin: 0 auto; padding: 0 8px; display: flex; overflow-x: auto; }
.portal-nav a { padding: 12px 12px; color: var(--gedimmt); border-bottom: 2px solid transparent; white-space: nowrap; font-weight: 500; }
.portal-nav a.aktiv { color: var(--navy); border-color: var(--akzent); font-weight: 600; }
.portal-nav a:hover { text-decoration: none; color: var(--navy); }
.portal-haupt { max-width: 880px; margin: 0 auto; padding: 20px 16px 60px; }
.gross-btn { display: flex; align-items: center; gap: 14px; padding: 16px 18px; background: var(--akzent); color: #fff; border-radius: var(--radius); font-weight: 600; font-size: 1.05rem; margin-bottom: 18px; }
.gross-btn:hover { text-decoration: none; background: #0b7476; }
.gross-btn .icon { font-size: 1.5rem; }
.liste-link { display: flex; justify-content: space-between; align-items: center; gap: 10px; padding: 12px 0; border-bottom: 1px solid var(--linie); color: inherit; }
.liste-link:last-child { border-bottom: 0; }
.liste-link:hover { text-decoration: none; background: #fafcff; }
.radio-liste ul { list-style: none; padding: 0; margin: 0; }
.radio-liste li label { font-weight: 500; display: flex; gap: 8px; align-items: center; padding: 6px 0; }
.checkbox label { display: flex; gap: 8px; align-items: center; font-weight: 500; }

@media (max-width: 1100px) {
  .raster.k4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .pruefen { grid-template-columns: 1fr; }
  .vorschau { position: static; height: 70vh; }
}
@media (max-width: 800px) {
  .app { grid-template-columns: 1fr; }
  .sidebar { position: static; height: auto; }
  .haupt { padding: 18px 16px 50px; }
  .raster.k3, .raster.k2, .raster.split, .formraster { grid-template-columns: 1fr; }
}
@media (max-width: 520px) {
  .raster.k4 { grid-template-columns: 1fr 1fr; }
}