:root {
  --bg: #f6f7f9;
  --surface: #ffffff;
  --text: #1d2330;
  --muted: #5d6677;
  --border: #dfe3ea;
  --accent: #1f6feb;
  --accent-text: #ffffff;
  --ok: #2f9e44;
  --subst: #e8b923;
  --missing: #d6336c;
  --pending: #7950f2;
  --none: #e9ecef;
  --error-bg: #fde8ef;
  --warning-bg: #fff6d6;
  --info-bg: #e7f0fd;
  --success-bg: #e3f6e8;
  --radius: 8px;
  /* Diagrammrollen, mit validate_palette geprüft (alle Paare, hell auf #ffffff) */
  --c-coverage: #1baf7a;   /* aus der Gemeinschaft */
  --c-grid: #e34948;       /* Netzbezug */
  --c-generation: #eda100; /* Einspeisung */
  --c-surplus: #2a78d6;    /* Restüberschuss */
  --c-a: #2a78d6;          /* Vergleich Zeitraum A */
  --c-b: #eb6834;          /* Vergleich Zeitraum B */
  --c-ink: #1d2330;        /* Verbrauch gesamt (neutrale Linie) */
  /* Kostenbestandteile (Slots 1–4 der Referenzpalette, benachbart geprüft) */
  --k-network: #2a78d6; --k-levy: #eb6834; --k-tax: #1baf7a; --k-energy: #eda100;
  /* Erzeugungsanlagen in fester Reihenfolge (Speicher zuerst), gestapelt neben Netzbezug geprüft */
  --g-1: #2a78d6; --g-2: #eda100; --g-3: #e87ba4; --g-4: #6250d6;
  --c-axis: #898781;
  --c-gridline: #e6e8ec;
  --c-gap: rgba(137, 135, 129, 0.16);
  --seq-0: #cde2fb; --seq-1: #86b6ef; --seq-2: #3987e5; --seq-3: #1c5cab; --seq-4: #0d366b;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #12151b;
    --surface: #1b2029;
    --text: #e6e9ef;
    --muted: #9aa3b2;
    --border: #2c3340;
    --accent: #4c8dff;
    --ok: #40c057;
    --subst: #f0c43a;
    --missing: #f06595;
    --pending: #9775fa;
    --none: #2a303b;
    --error-bg: #3a1f2a;
    --warning-bg: #3a3420;
    --info-bg: #1e2b40;
    --success-bg: #1d3325;
    --c-coverage: #199e70;
    --c-grid: #e66767;
    --c-generation: #c98500;
    --c-surplus: #3987e5;
    --c-a: #3987e5;
    --c-b: #d95926;
    --c-ink: #e6e9ef;
    --k-network: #3987e5; --k-levy: #d95926; --k-tax: #199e70; --k-energy: #c98500;
    --g-1: #3987e5; --g-2: #c98500; --g-3: #d55181; --g-4: #9085e9;
    --c-axis: #898781;
    --c-gridline: #2c3340;
    --c-gap: rgba(200, 200, 200, 0.12);
    --seq-0: #184f95; --seq-1: #256abf; --seq-2: #3987e5; --seq-3: #86b6ef; --seq-4: #cde2fb;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
}
a { color: var(--accent); }
h1 { font-size: 1.5rem; margin: 0 0 1rem; }
h2 { font-size: 1.15rem; margin: 1.75rem 0 .75rem; }
.muted { color: var(--muted); }
.small { font-size: .85rem; }
.mono { font-family: ui-monospace, Consolas, monospace; font-size: .85rem; }

.topbar {
  display: flex; flex-wrap: wrap; align-items: center; gap: .5rem 1.5rem;
  padding: .6rem 1rem; background: var(--surface); border-bottom: 1px solid var(--border);
}
.brand { font-weight: 650; color: var(--text); text-decoration: none; }
.nav { display: flex; flex-wrap: wrap; gap: .25rem 1rem; flex: 1; }
.nav a { color: var(--text); text-decoration: none; }
.nav a:hover { color: var(--accent); }
.usermenu { display: flex; align-items: center; gap: .75rem; }
.usermenu form { margin: 0; }

.container { max-width: 1200px; margin: 0 auto; padding: 1.25rem 16px 3rem; }
.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 1rem 1.25rem; margin-bottom: 1rem;
}
.narrow { max-width: 460px; margin: 2rem auto; }
.grid { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.stat .value { font-size: 1.6rem; font-weight: 650; }
.stat .label { color: var(--muted); font-size: .85rem; }

.messages { list-style: none; padding: 0; margin: 0 0 1rem; }
.msg { padding: .6rem .9rem; border-radius: var(--radius); margin-bottom: .5rem; background: var(--info-bg); }
.msg-success { background: var(--success-bg); }
.msg-warning { background: var(--warning-bg); }
.msg-error { background: var(--error-bg); }

table { border-collapse: collapse; width: 100%; }
th, td { text-align: left; padding: .45rem .6rem; border-bottom: 1px solid var(--border); vertical-align: top; }
th { font-weight: 600; color: var(--muted); font-size: .85rem; }
.table-wrap { overflow-x: auto; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }

form p { margin: 0 0 .8rem; }
label { display: block; font-weight: 550; margin-bottom: .2rem; }
input[type=text], input[type=password], input[type=email], input[type=number], input[type=date],
input[type=time], select, textarea {
  width: 100%; padding: .45rem .6rem; border: 1px solid var(--border); border-radius: 6px;
  background: var(--bg); color: var(--text); font: inherit;
}
input[type=checkbox] { margin-right: .4rem; }
.helptext, .form-help { display: block; color: var(--muted); font-size: .8rem; margin-top: .15rem; }
.errorlist { color: var(--missing); margin: .2rem 0; padding-left: 1rem; }
ul#id_metering_points, .checklist { list-style: none; padding: 0; }
ul#id_metering_points label, .checklist label { font-weight: 400; display: inline; }
button, .button {
  display: inline-block; padding: .45rem 1rem; border-radius: 6px; border: 1px solid var(--accent);
  background: var(--accent); color: var(--accent-text); font: inherit; cursor: pointer; text-decoration: none;
}
button.secondary, .button.secondary { background: transparent; color: var(--accent); }
button.danger { background: transparent; color: var(--missing); border-color: var(--missing); }
button.link { background: none; border: none; color: var(--accent); padding: 0; }
.actions { display: flex; flex-wrap: wrap; gap: .5rem; align-items: center; }
.actions form { margin: 0; }

.badge { display: inline-block; padding: .05rem .5rem; border-radius: 999px; font-size: .78rem; font-weight: 600; }
.sev-error { background: var(--error-bg); color: var(--missing); }
.sev-warning { background: var(--warning-bg); color: var(--text); }
.sev-info { background: var(--info-bg); color: var(--text); }
.badge-ok { background: var(--success-bg); }

/* Kalender-Matrix Datenqualität */
.matrix { border-collapse: separate; border-spacing: 2px; width: auto; }
.matrix th, .matrix td { border: none; padding: 0; }
.matrix th.zp { padding-right: .6rem; white-space: nowrap; font-weight: 500; color: var(--text); font-size: .85rem; }
.matrix th.day { font-size: .7rem; text-align: center; width: 18px; color: var(--muted); }
.matrix td span { display: block; width: 18px; height: 18px; border-radius: 3px; }
.q-ok { background: var(--ok); }
.q-subst { background: var(--subst); }
.q-missing { background: var(--missing); }
.q-pending { background: var(--pending); }
.q-none { background: var(--none); }
.legend { display: flex; flex-wrap: wrap; gap: .4rem 1rem; font-size: .85rem; margin-top: .6rem; }
.legend span.swatch { display: inline-block; width: 12px; height: 12px; border-radius: 2px; margin-right: .3rem; vertical-align: -1px; }

/* Fehlerübersicht der letzten 12 Monate (Seite Datenqualität) */
.error-overview h2 { margin: 0; }
.eo-head { display: flex; justify-content: space-between; align-items: baseline; gap: .75rem; flex-wrap: wrap; }
.eo-counts { display: flex; gap: 1rem; font-size: .9rem; }
.eo-counts strong { font-size: 1.15rem; }
.eo-open { color: var(--missing); }
.eo-months { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: 4px; margin: .8rem 0 .6rem; }
.eo-month { display: block; text-align: center; font-size: .75rem; color: var(--muted); border: 1px solid var(--border);
            border-radius: 6px; padding: .25rem 0; text-decoration: none; }
.eo-month b { display: block; font-size: .95rem; font-weight: 600; }
.eo-month.has-errors { background: var(--error-bg); border-color: var(--missing); color: var(--missing); }
.eo-month.current { outline: 2px solid var(--accent); outline-offset: 1px; }
.eo-month.empty { opacity: .55; }
.eo-row { display: grid; grid-template-columns: 4.5rem minmax(0, 1fr) auto; gap: .75rem; padding: .55rem 0;
          border-top: 1px solid var(--border); align-items: start; }
.eo-row.done { color: var(--muted); }
.eo-status { text-align: right; display: flex; flex-direction: column; gap: .2rem; align-items: flex-end; }
.error-overview details { margin-top: .4rem; }
@media (max-width: 640px) {
  .eo-months { grid-template-columns: repeat(6, minmax(0, 1fr)); }
  .eo-row { grid-template-columns: 1fr; }
  .eo-status { flex-direction: row; justify-content: flex-start; align-items: center; }
}
.issue { border-left: 4px solid var(--border); }
.issue.sev-error-border { border-left-color: var(--missing); }
.issue.sev-warning-border { border-left-color: var(--subst); }
.issue.sev-info-border { border-left-color: var(--accent); }
.issue h3 { font-size: 1rem; margin: 0 0 .25rem; }
.issue .meta { color: var(--muted); font-size: .85rem; margin-bottom: .4rem; }
.issue details { margin-top: .5rem; }
.issue pre { white-space: pre-wrap; background: var(--bg); padding: .6rem; border-radius: 6px; font-size: .85rem; }
.issue-form { display: grid; grid-template-columns: minmax(160px, 220px) 1fr auto; gap: .5rem; align-items: start; margin-top: .6rem; }
.issue-form .actions { padding-top: 1.6rem; }
.issue-form textarea { min-height: 2.4rem; height: 2.4rem; }
.issue-form p { margin: 0; }
@media (max-width: 640px) { .issue-form { grid-template-columns: 1fr; } }

/* Auswertungen */
.tabs { display: flex; flex-wrap: wrap; gap: .25rem; margin-bottom: .75rem; border-bottom: 1px solid var(--border); }
.tabs a { padding: .4rem .8rem; text-decoration: none; color: var(--muted); border-bottom: 2px solid transparent; margin-bottom: -1px; }
.tabs a[aria-current="page"] { color: var(--text); border-bottom-color: var(--accent); font-weight: 600; }
.filters { display: grid; gap: .6rem; }
.filters p { margin: 0; }
.presets { display: flex; flex-wrap: wrap; gap: .4rem; }
.chip { background: transparent; color: var(--text); border: 1px solid var(--border); border-radius: 999px; padding: .25rem .8rem; font-size: .85rem; }
.chip.active { border-color: var(--accent); color: var(--accent); font-weight: 600; }
.filter-fields { display: flex; flex-wrap: wrap; gap: .6rem; align-items: end; }
.filter-fields label { font-weight: 500; font-size: .85rem; margin: 0; }
.filter-fields input, .filter-fields select { width: auto; min-width: 9rem; display: block; margin-top: .15rem; }
.kpis { display: grid; gap: .75rem; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); margin-bottom: 1rem; }
.kpi { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: .8rem 1rem; }
.kpi .label { color: var(--muted); font-size: .82rem; display: flex; align-items: center; gap: .4rem; }
.kpi .swatch { width: 10px; height: 10px; border-radius: 2px; display: inline-block; }
.kpi .value { font-size: 1.5rem; font-weight: 650; margin-top: .15rem; }
.kpi .sub { color: var(--muted); font-size: .82rem; }
.chart-card h2 { margin-top: .25rem; }
.chart { width: 100%; height: 320px; }
.chart-tall { height: 400px; }
.two-col { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(420px, 1fr)); }
.two-col .card { margin-bottom: 0; }
@media (max-width: 520px) { .two-col { grid-template-columns: 1fr; } .chart-tall { height: 340px; } }
.table-view { margin-top: .5rem; }
.table-view summary { cursor: pointer; color: var(--accent); font-size: .9rem; }
.table-view .table-wrap { max-height: 360px; overflow: auto; margin-top: .5rem; }
.chart-status { color: var(--muted); padding: 2rem 0; text-align: center; }
.sw-coverage { background: var(--c-coverage); } .sw-grid { background: var(--c-grid); }
.sw-generation { background: var(--c-generation); } .sw-surplus { background: var(--c-surplus); }
.sw-ink { background: var(--c-ink); }
.sw-g1 { background: var(--g-1); } .sw-g2 { background: var(--g-2); }
.sw-g3 { background: var(--g-3); } .sw-g4 { background: var(--g-4); }
#analysis.loading { opacity: .55; }

.qr svg { width: 220px; height: 220px; background: #fff; padding: 6px; border-radius: 6px; }
.codes { columns: 2; font-family: ui-monospace, Consolas, monospace; font-size: 1.05rem; }