:root {
  --ink: #16191c;
  --paper: #fbfaf7;
  --rule: #dcd9d1;
  --rule-soft: #ebe8e1;
  --dim: #6a706f;
  --solar: #c2871a;
  --solar-weich: #f4e9d0;
  --grid: #3f6d8c;
  --grid-weich: #dfe8ee;
  --alarm: #a8321f;
  --ok: #3d6b3f;
  --sans: ui-sans-serif, system-ui, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.55;
  font-variant-numeric: tabular-nums;
}

a { color: var(--ink); text-decoration: none; border-bottom: 1px solid var(--rule); }
a:hover { border-bottom-color: var(--ink); }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible {
  outline: 2px solid var(--grid);
  outline-offset: 2px;
}

.shell { display: grid; grid-template-columns: 190px minmax(0, 1fr); min-height: 100vh; }

.rail {
  border-right: 1px solid var(--rule);
  padding: 22px 18px;
  position: sticky;
  top: 0;
  align-self: start;
  height: 100vh;
}
.rail .marke { font-family: var(--mono); font-size: 13px; letter-spacing: .04em; }
.rail .marke b { font-weight: 500; }
.rail nav { margin-top: 26px; display: flex; flex-direction: column; gap: 2px; }
.rail nav a {
  border: 0; padding: 5px 8px; margin-left: -8px; font-size: 14px; color: var(--dim);
  border-left: 2px solid transparent;
}
.rail nav a.aktiv, .rail nav a:hover { color: var(--ink); border-left-color: var(--solar); }
.rail .fuss { position: absolute; bottom: 20px; font-size: 11px; color: var(--dim); font-family: var(--mono); }

main { padding: 26px 32px 80px; max-width: 1440px; }

h1 { font-size: 21px; font-weight: 500; margin: 0 0 2px; letter-spacing: -.01em; }
h2 { font-size: 15px; font-weight: 500; margin: 34px 0 10px; }
h3 { font-size: 13px; font-weight: 500; margin: 22px 0 8px; color: var(--dim); }
.unterzeile { color: var(--dim); font-size: 13px; font-family: var(--mono); margin-bottom: 22px; }

.mono, td.num, th.num { font-family: var(--mono); }
td.num, th.num { text-align: right; }

table { width: 100%; border-collapse: collapse; font-size: 14px; }
th {
  text-align: left; font-weight: 400; font-size: 10.5px; letter-spacing: .08em;
  text-transform: uppercase; color: var(--dim); padding: 0 10px 6px 0;
  border-bottom: 1px solid var(--rule);
}
td { padding: 8px 10px 8px 0; border-bottom: 1px solid var(--rule-soft); vertical-align: top; }
tr.summe td { border-top: 1px solid var(--rule); border-bottom: 0; font-family: var(--mono); }

.kennzahlen { display: flex; flex-wrap: wrap; gap: 0; border-top: 1px solid var(--rule); }
.kennzahl { padding: 14px 26px 14px 0; margin-right: 26px; border-right: 1px solid var(--rule-soft); }
.kennzahl:last-child { border-right: 0; }
.kennzahl .wert { font-family: var(--mono); font-size: 22px; line-height: 1.1; }
.kennzahl .titel { font-size: 10.5px; letter-spacing: .08em; text-transform: uppercase; color: var(--dim); }

.marke-status {
  font-family: var(--mono); font-size: 11px; padding: 1px 6px; border: 1px solid var(--rule);
  white-space: nowrap;
}
.s-aktiv { border-color: var(--ok); color: var(--ok); }
.s-warn { border-color: var(--solar); color: #8a5f10; background: var(--solar-weich); }
.s-fehler { border-color: var(--alarm); color: var(--alarm); }
.s-neutral { color: var(--dim); }

.band { display: block; width: 100%; height: 34px; }
.band-legende { display: flex; gap: 18px; font-size: 11px; color: var(--dim); margin-top: 4px; }
.band-legende i { display: inline-block; width: 9px; height: 9px; margin-right: 5px; }
.legende-solar { background: var(--solar); }
.legende-grid { background: var(--grid); }

.befund { border-left: 2px solid var(--rule); padding: 8px 0 8px 12px; margin-bottom: 8px; font-size: 14px; }
.befund.fehler { border-left-color: var(--alarm); }
.befund.warnung { border-left-color: var(--solar); }
.befund .art { font-family: var(--mono); font-size: 11px; color: var(--dim); }

form.stack { max-width: 560px; }
fieldset { border: 0; border-top: 1px solid var(--rule); padding: 16px 0 4px; margin: 0 0 8px; }
legend { font-size: 10.5px; letter-spacing: .08em; text-transform: uppercase; color: var(--dim); padding-right: 10px; }
label { display: block; font-size: 13px; margin: 12px 0 3px; }
input[type=text], input[type=email], input[type=number], input[type=date], select, textarea {
  width: 100%; padding: 7px 9px; border: 1px solid var(--rule); background: #fff;
  font: inherit; font-size: 14px; border-radius: 2px;
}
input[type=file] { font-size: 13px; }
.zweispaltig { display: grid; grid-template-columns: 1fr 1fr; gap: 0 14px; }
.hinweis { font-size: 12px; color: var(--dim); margin-top: 3px; }
.zustimmung { display: flex; gap: 9px; align-items: flex-start; margin: 14px 0; font-size: 13.5px; }
.zustimmung input { margin-top: 4px; }

button, .knopf {
  font: inherit; font-size: 14px; padding: 7px 16px; border: 1px solid var(--ink);
  background: var(--ink); color: var(--paper); border-radius: 2px; cursor: pointer;
}
button.leise, .knopf.leise { background: transparent; color: var(--ink); border-color: var(--rule); }
button.leise:hover { border-color: var(--ink); }
.knopfreihe { display: flex; gap: 8px; flex-wrap: wrap; margin: 16px 0; align-items: center; }

.meldung { border: 1px solid var(--rule); border-left-width: 2px; padding: 10px 14px; margin-bottom: 18px; font-size: 14px; }
.meldung.ok { border-left-color: var(--ok); }
.meldung.fehler { border-left-color: var(--alarm); }

.leer { color: var(--dim); font-size: 14px; padding: 18px 0; }

.pdf-ansicht { width: 100%; height: 82vh; border: 1px solid var(--rule); margin-top: 8px; background: #fff; }

/* Rechte Spalte wächst mit der Fensterbreite (40 %), bleibt aber nie kleiner
   als 480px, bis der Breakpoint unten sie ganz unter die Liste stellt. */
.mail-layout { display: grid; grid-template-columns: minmax(0, 1fr) minmax(480px, 40%); gap: 0 26px; align-items: start; }
.mail-viewer { position: sticky; top: 20px; }
.mail-viewer .pdf-ansicht { height: calc(100vh - 130px); }

@media (max-width: 1200px) {
  .mail-layout { grid-template-columns: minmax(0, 1fr) minmax(380px, 44%); }
}

@media (max-width: 980px) {
  .mail-layout { grid-template-columns: 1fr; }
  .mail-viewer { position: static; }
  .mail-viewer .pdf-ansicht { height: 75vh; }
}

.portal { max-width: 780px; margin: 0 auto; padding: 40px 22px 70px; }
.portal header { border-bottom: 1px solid var(--rule); padding-bottom: 14px; margin-bottom: 26px; }

@media (max-width: 780px) {
  .shell { grid-template-columns: 1fr; }
  .rail { position: static; height: auto; border-right: 0; border-bottom: 1px solid var(--rule); }
  .rail nav { flex-direction: row; flex-wrap: wrap; gap: 10px; margin-top: 12px; }
  .rail .fuss { display: none; }
  main { padding: 20px 18px 60px; }
  .zweispaltig { grid-template-columns: 1fr; }
  /* Breite Tabellen (Belege, Zahlungen, Buchhaltung ...) laufen sonst aus
     dem Rahmen - display:block macht die Tabelle selbst horizontal
     scrollbar, thead/tbody/tr behalten ihr eigenes Tabellen-Layout. */
  table { display: block; overflow-x: auto; white-space: nowrap; font-size: 13px; }
  .kennzahlen { gap: 10px 0; }
  .kennzahl { flex: 1 1 45%; margin-right: 0; padding-right: 14px; }
}

@media (prefers-reduced-motion: no-preference) {
  .band rect { transition: opacity .2s; }
}

/* ------------------------------------------------------------ Anmeldung */
.anmelde-seite {
  display: grid;
  place-items: center;
  min-height: 100vh;
  padding: 24px;
  background:
    linear-gradient(var(--paper), var(--paper)),
    repeating-linear-gradient(90deg, var(--rule-soft) 0 1px, transparent 1px 64px);
  background-blend-mode: multiply;
}

.anmeldung {
  width: 100%;
  max-width: 360px;
  background: #fff;
  border: 1px solid var(--rule);
  border-radius: 3px;
  padding: 34px 32px 26px;
}

.anmeldung-marke { display: flex; align-items: center; gap: 12px; margin-bottom: 30px; }
.anmeldung-titel { font-family: var(--mono); font-size: 15px; letter-spacing: .02em; }
.anmeldung-untertitel { font-size: 11.5px; color: var(--dim); letter-spacing: .02em; }

.anmeldung form { display: block; }
.anmeldung label {
  font-size: 10.5px; letter-spacing: .08em; text-transform: uppercase;
  color: var(--dim); margin: 16px 0 5px;
}
.anmeldung input { width: 100%; padding: 9px 10px; }
.anmeldung button { width: 100%; margin-top: 24px; padding: 10px; }
.anmeldung .meldung { margin-bottom: 18px; }
.anmeldung-fuss {
  margin: 26px 0 0; padding-top: 16px; border-top: 1px solid var(--rule-soft);
  font-size: 12px; color: var(--dim);
}

/* ------------------------------------------------- Formulare, Bearbeiten */
.abschnitt { border-top: 1px solid var(--rule); padding-top: 4px; margin-top: 30px; }
.dreispaltig { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 0 14px; }
.schalter { display: flex; align-items: center; gap: 9px; margin: 14px 0 4px; font-size: 14px; }
.schalter input { width: auto; }
.mail-vorschau {
  border: 1px solid var(--rule); border-left: 2px solid var(--solar);
  padding: 14px 16px; margin-bottom: 14px; background: #fff;
}
.mail-kopf { font-family: var(--mono); font-size: 11.5px; color: var(--dim); line-height: 1.7; }
.mail-betreff { font-weight: 500; margin: 8px 0 6px; }
.mail-text {
  font-family: var(--mono); font-size: 12px; white-space: pre-wrap;
  background: var(--paper); border: 1px solid var(--rule-soft); padding: 10px 12px;
  max-height: 230px; overflow: auto;
}
.fehlt-hinweis { border-left-color: var(--alarm) !important; }

@media (max-width: 780px) {
  .dreispaltig { grid-template-columns: 1fr; }
}