:root {
    --bg: #f4f5f7;
    --card-bg: #ffffff;
    --fg: #1a1a1a;
    --fg-muted: #6b7280;
    --border: #e2e4e9;
    --accent: #2563eb;
    --accent-dark: #1d4ed8;
    --shadow: 0 1px 3px rgba(16, 24, 40, 0.08), 0 1px 2px rgba(16, 24, 40, 0.06);
    --radius: 10px;

    --green: #15803d;
    --green-bg: #dcfce7;
    --yellow: #a16207;
    --yellow-bg: #fef9c3;
    --red: #b91c1c;
    --red-bg: #fee2e2;
    --grey-bg: #eef0f3;
    --table-stripe: #fafbfc;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #0f1115;
        --card-bg: #1a1d23;
        --fg: #e6e6e6;
        --fg-muted: #9aa1ac;
        --border: #2a2e37;
        --shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
        --grey-bg: #23262d;
        --green: #4ade80;
        --green-bg: #10301f;
        --yellow: #facc15;
        --yellow-bg: #332a08;
        --red: #f87171;
        --red-bg: #3a1414;
        --table-stripe: #1e2128;
    }
}

* { box-sizing: border-box; }

body {
    font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
    background: var(--bg);
    color: var(--fg);
    margin: 0;
    line-height: 1.45;
}

header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.9rem 2rem;
    background: var(--card-bg);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 10;
    gap: 1.5rem;
}

header h1 { font-size: 1.15rem; margin: 0; letter-spacing: -0.01em; white-space: nowrap; }
header h1 a { color: inherit; text-decoration: none; }
header h1 a::before { content: "📊 "; }
header nav { display: flex; align-items: center; gap: 1.15rem; flex-wrap: wrap; }
header nav a:not(.button) {
    color: var(--fg-muted);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
}
header nav a:not(.button):hover { color: var(--accent); }
header nav a.aktiv { color: var(--fg); font-weight: 600; }

.badge-zahl {
    display: inline-block;
    background: var(--yellow-bg);
    color: var(--yellow);
    border-radius: 999px;
    padding: 0 0.45rem;
    font-size: 0.75rem;
    font-weight: 700;
    margin-left: 0.25rem;
}

main { padding: 1.75rem 2rem 4rem; max-width: 1400px; margin: 0 auto; }

h2 { font-size: 1.05rem; margin: 0 0 0.9rem; }
h3 { font-size: 0.95rem; margin: 1.5rem 0 0.6rem; color: var(--fg-muted); }

a { color: var(--accent); }

/* Kopfzeile einer Seite */
.seitenkopf {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 1.25rem;
}
.seitenkopf h2 { margin: 0; font-size: 1.35rem; letter-spacing: -0.02em; }
.seitenkopf .unterzeile { color: var(--fg-muted); font-size: 0.9rem; margin-top: 0.15rem; }
.werkzeuge { display: flex; gap: 0.6rem; align-items: center; flex-wrap: wrap; }

/* Buttons */
.button, button[type="submit"] {
    background: var(--accent);
    color: #fff;
    border: none;
    padding: 0.55rem 1.1rem;
    border-radius: 7px;
    text-decoration: none;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    transition: background 0.15s ease;
    display: inline-block;
}
.button:hover, button[type="submit"]:hover { background: var(--accent-dark); }
.button.sekundaer, button.sekundaer {
    background: var(--card-bg);
    color: var(--fg);
    border: 1px solid var(--border);
}
.button.sekundaer:hover, button.sekundaer:hover { background: var(--grey-bg); }
.button.klein, button.klein { padding: 0.32rem 0.7rem; font-size: 0.82rem; }
button[type="submit"]:disabled { background: var(--grey-bg); color: var(--fg-muted); cursor: not-allowed; }

/* Cards */
.card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 1.25rem 1.5rem;
    margin-bottom: 1.5rem;
}
.card.schmal { padding: 1rem 1.25rem; }

/* Kennzahlen */
.kennzahlen {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}
.kennzahl {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 1rem 1.15rem;
}
.kennzahl .beschriftung {
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--fg-muted);
    font-weight: 600;
}
.kennzahl .wert {
    font-size: 1.6rem;
    font-weight: 650;
    letter-spacing: -0.02em;
    margin-top: 0.3rem;
    font-variant-numeric: tabular-nums;
}
.kennzahl .zusatz { font-size: 0.82rem; color: var(--fg-muted); margin-top: 0.2rem; }
.kennzahl.gut .wert { color: var(--green); }
.kennzahl.schlecht .wert { color: var(--red); }
.kennzahl.warnung { border-color: var(--yellow); }
.kennzahl.warnung .wert { color: var(--yellow); }

/* Tabellen */
.tabellenrahmen { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
th, td { padding: 0.5rem 0.65rem; text-align: left; border-bottom: 1px solid var(--border); }
th {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--fg-muted);
    font-weight: 600;
    white-space: nowrap;
    position: sticky;
    top: 0;
    background: var(--card-bg);
}
tbody tr:nth-child(even) { background: var(--table-stripe); }
tbody tr:hover { background: var(--grey-bg); }
td.zahl, th.zahl { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
tr.summe td { font-weight: 700; border-top: 2px solid var(--border); background: var(--grey-bg); }
tr.zwischensumme td { font-weight: 600; background: var(--table-stripe); }
tr.gruppe td {
    font-weight: 700;
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--fg-muted);
    border-bottom: none;
    padding-top: 1rem;
}
td.positiv { color: var(--green); }
td.negativ { color: var(--red); }
td a { text-decoration: none; }
td a:hover { text-decoration: underline; }

/* Status */
.status {
    display: inline-block;
    padding: 0.1rem 0.5rem;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 600;
    white-space: nowrap;
}
.status.offen { background: var(--yellow-bg); color: var(--yellow); }
.status.fest { background: var(--green-bg); color: var(--green); }
.status.neutral { background: var(--grey-bg); color: var(--fg-muted); }
.status.rot { background: var(--red-bg); color: var(--red); }

/* Formulare */
label { display: block; margin-bottom: 0.75rem; font-size: 0.9rem; color: var(--fg-muted); }
label.inline { display: inline-flex; align-items: center; gap: 0.4rem; margin-bottom: 0; }
input[type="text"], input[type="password"], input[type="number"], input[type="file"], input[type="date"], select {
    display: block;
    margin-top: 0.3rem;
    padding: 0.5rem 0.6rem;
    border-radius: 7px;
    border: 1px solid var(--border);
    background: var(--card-bg);
    color: var(--fg);
    font-size: 0.9rem;
    font-family: inherit;
    max-width: 100%;
}
select.inline, input.inline { display: inline-block; margin-top: 0; }
.formularzeile {
    display: flex;
    gap: 1rem;
    align-items: flex-end;
    flex-wrap: wrap;
}
.formularzeile > label { margin-bottom: 0; }

/* Meldungen */
.meldung {
    padding: 0.7rem 1rem;
    border-radius: 8px;
    margin-bottom: 1.25rem;
    font-size: 0.9rem;
    border: 1px solid transparent;
}
.meldung.erfolg { background: var(--green-bg); color: var(--green); border-color: var(--green); }
.meldung.warnung { background: var(--yellow-bg); color: var(--yellow); border-color: var(--yellow); }

.hinweis {
    font-size: 0.85rem;
    color: var(--fg-muted);
    background: var(--grey-bg);
    border-left: 3px solid var(--border);
    padding: 0.7rem 0.9rem;
    border-radius: 0 7px 7px 0;
    margin: 1rem 0;
}

/* Abstimmbruecke */
.abstimmung { font-size: 0.88rem; }
.abstimmung td:first-child { color: var(--fg-muted); }
.abstimmung tr:last-child td { font-weight: 700; border-top: 2px solid var(--border); color: var(--fg); }

/* Balkendiagramm Monatsverlauf */
.verlauf {
    display: flex;
    align-items: flex-end;
    gap: 0.4rem;
    height: 170px;
    padding-top: 0.5rem;
}
.verlauf .monat {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    align-items: center;
    height: 100%;
    gap: 0.25rem;
    min-width: 0;
}
.verlauf .saeulen {
    display: flex;
    align-items: flex-end;
    gap: 2px;
    height: 100%;
    width: 100%;
    justify-content: center;
}
.verlauf .saeule { width: 42%; border-radius: 3px 3px 0 0; min-height: 2px; }
.verlauf .saeule.erloes { background: var(--accent); }
.verlauf .saeule.aufwand { background: #f59e0b; }
.verlauf .beschriftung { font-size: 0.7rem; color: var(--fg-muted); }
.legende { display: flex; gap: 1rem; font-size: 0.78rem; color: var(--fg-muted); margin-top: 0.6rem; }
.legende span::before {
    content: "";
    display: inline-block;
    width: 9px; height: 9px;
    border-radius: 2px;
    margin-right: 0.35rem;
}
.legende .erloes::before { background: var(--accent); }
.legende .aufwand::before { background: #f59e0b; }

/* Zwei Spalten */
.spalten { display: grid; grid-template-columns: 2fr 1fr; gap: 1.5rem; align-items: start; }
@media (max-width: 1000px) { .spalten { grid-template-columns: 1fr; } }

/* Blaetterleiste */
.blaettern { display: flex; gap: 0.5rem; align-items: center; margin-top: 1rem; font-size: 0.88rem; }
.blaettern .aktuell { color: var(--fg-muted); }

/* Aktionsleiste der Inbox */
.aktionsleiste {
    position: sticky;
    bottom: 0;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: 0 -2px 12px rgba(16, 24, 40, 0.1);
    padding: 0.85rem 1.15rem;
    display: flex;
    gap: 0.85rem;
    align-items: center;
    flex-wrap: wrap;
    margin-top: 1rem;
}

.leer { text-align: center; color: var(--fg-muted); padding: 2.5rem 1rem; }
.leer strong { display: block; font-size: 1.05rem; color: var(--fg); margin-bottom: 0.35rem; }

.klein { font-size: 0.82rem; color: var(--fg-muted); }
.nowrap { white-space: nowrap; }

/* Anmeldung und Ersteinrichtung */
main.anmeldung { max-width: 420px; margin: 9vh auto 3rem; padding: 0 1rem; }
.anmeldung-kopf {
    font-size: 1.2rem;
    font-weight: 650;
    letter-spacing: -0.01em;
    text-align: center;
    margin-bottom: 1.25rem;
}
.anmeldung input[type="text"], .anmeldung input[type="password"] { width: 100%; }
button.breit, .button.breit { width: 100%; margin-top: 0.4rem; padding: 0.65rem 1rem; }
.zentriert { text-align: center; }

/* Kontobereich in der Kopfzeile */
header .konto {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-size: 0.85rem;
    white-space: nowrap;
}
header .konto a { color: var(--fg-muted); text-decoration: none; font-weight: 500; }
header .konto a:hover { color: var(--accent); }
header .konto form { margin: 0; }
header .konto button, header .konto button[type="submit"] {
    background: none;
    border: 1px solid var(--border);
    color: var(--fg-muted);
    padding: 0.3rem 0.65rem;
    border-radius: 7px;
    font-size: 0.8rem;
    cursor: pointer;
}
header .konto button:hover, header .konto button[type="submit"]:hover {
    background: none;
    color: var(--accent);
    border-color: var(--accent);
}

/* Rechte in der Benutzerverwaltung */
.rechte-raster {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 0.55rem 1.25rem;
    margin: 0.4rem 0 0.9rem;
}
label.recht { align-items: flex-start; color: var(--fg); }
label.recht input { margin-top: 0.2rem; }
input:disabled + span { opacity: 0.45; }