:root {
  --bg: #f3f5f8;
  --panel: #ffffff;
  --border: #d9dee6;
  --text: #1f2933;
  --muted: #5f6b7a;
  --primary: #1f5fa8;
  --primary-dark: #174a83;
  --danger: #b42318;
  --danger-bg: #fdecea;
  --warn: #8a5a00;
  --warn-bg: #fff4d6;
  --ok: #1a7f37;
  --ok-bg: #e6f4ea;
  --radius: 8px;
  --shadow: 0 1px 3px rgba(16, 24, 40, 0.08), 0 1px 2px rgba(16, 24, 40, 0.04);
  --font: "Segoe UI", system-ui, -apple-system, Roboto, Arial, sans-serif;
  --mono: Consolas, "Courier New", monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.45;
}

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

/* ---------- Kopfzeile ---------- */

.topbar {
  background: #14304f;
  color: #fff;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
  box-shadow: var(--shadow);
}

.topbar .brand {
  font-weight: 600;
  font-size: 17px;
  letter-spacing: 0.2px;
}

.topbar .brand small {
  display: block;
  font-weight: 400;
  font-size: 12px;
  opacity: 0.8;
}

.topbar nav a, .topbar nav button {
  color: #dbe6f3;
  text-decoration: none;
  margin-left: 18px;
  background: none;
  border: 0;
  font: inherit;
  cursor: pointer;
  padding: 6px 0;
  border-bottom: 2px solid transparent;
}

.topbar nav a.active { color: #fff; border-bottom-color: #fff; }
.topbar nav a:hover, .topbar nav button:hover { color: #fff; }

/* ---------- Layout ---------- */

main.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 24px;
}

section.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px 24px;
  margin-bottom: 20px;
}

section.panel h2 {
  margin: 0 0 14px;
  font-size: 18px;
  display: flex;
  align-items: center;
  gap: 10px;
}

section.panel h2 .step {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
}

.hint { color: var(--muted); font-size: 13px; }

.hidden { display: none !important; }

/* ---------- Formulare ---------- */

label { font-size: 13px; color: var(--muted); display: block; margin-bottom: 4px; }

input[type="text"], input[type="password"], input[type="date"], input[type="number"], select, textarea {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font: inherit;
  background: #fff;
  color: var(--text);
}

input:focus, select:focus, textarea:focus {
  outline: 2px solid rgba(31, 95, 168, 0.35);
  border-color: var(--primary);
}

textarea { font-family: var(--mono); font-size: 13px; resize: vertical; }

.options-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px 18px;
  margin-top: 16px;
}

.check { display: flex; align-items: center; gap: 8px; margin-top: 22px; font-size: 14px; color: var(--text); }
.check input { width: auto; }

button.btn {
  background: var(--primary);
  color: #fff;
  border: 0;
  border-radius: 6px;
  padding: 9px 16px;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}

button.btn:hover { background: var(--primary-dark); }
button.btn:disabled { opacity: 0.5; cursor: not-allowed; }
button.btn.secondary { background: #fff; color: var(--primary); border: 1px solid var(--primary); }
button.btn.secondary:hover { background: #eef4fb; }
button.btn.small { padding: 5px 10px; font-size: 13px; font-weight: 500; }
button.btn.danger { background: #fff; color: var(--danger); border: 1px solid var(--danger); }

.actions { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin-top: 16px; }

/* ---------- Upload ---------- */

.dropzone {
  border: 2px dashed #9fb3cc;
  border-radius: var(--radius);
  padding: 28px;
  text-align: center;
  color: var(--muted);
  background: #f8fafc;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
}

.dropzone.dragover { background: #e8f0fa; border-color: var(--primary); }
.dropzone strong { color: var(--text); }
.dropzone .filename { margin-top: 10px; color: var(--primary); font-weight: 600; }

/* ---------- Meldungen ---------- */

.message { padding: 10px 14px; border-radius: 6px; margin: 10px 0; font-size: 14px; }
.message.error { background: var(--danger-bg); color: var(--danger); border: 1px solid #f5c2be; }
.message.warn { background: var(--warn-bg); color: var(--warn); border: 1px solid #f2d78a; }
.message.ok { background: var(--ok-bg); color: var(--ok); border: 1px solid #b7e0c2; }
.message ul { margin: 6px 0 0 18px; padding: 0; }

/* ---------- Stapelinfo ---------- */

.info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 12px;
  margin-bottom: 14px;
}

.info-card {
  background: #f8fafc;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 10px 12px;
}

.info-card .k { font-size: 12px; color: var(--muted); }
.info-card .v { font-size: 15px; font-weight: 600; margin-top: 2px; word-break: break-word; }

/* ---------- Tabelle ---------- */

.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: 6px; }

table.rows { border-collapse: collapse; width: 100%; font-size: 13px; }
table.rows th, table.rows td { padding: 6px 8px; border-bottom: 1px solid var(--border); vertical-align: top; white-space: nowrap; }
table.rows th { background: #f1f4f8; text-align: left; font-weight: 600; position: sticky; top: 0; }
table.rows tr.inaktiv td { opacity: 0.45; }
table.rows td input, table.rows td select { padding: 4px 6px; font-size: 13px; min-width: 70px; }
table.rows td input.w-sm { width: 80px; }
table.rows td input.w-md { width: 120px; }
table.rows td input.w-lg { width: 160px; }
table.rows td input.num { text-align: right; }
table.rows td.num { text-align: right; font-variant-numeric: tabular-nums; }
table.rows td.pk { white-space: normal; min-width: 220px; color: var(--muted); font-size: 12px; }
table.rows td.pk b { color: var(--text); }
table.rows td.hinweise { white-space: normal; min-width: 260px; font-size: 12px; color: var(--warn); }
table.rows tr:hover td { background: #fbfcfe; }

.badge { display: inline-block; padding: 1px 7px; border-radius: 10px; font-size: 11px; font-weight: 600; }
.badge.ks { background: var(--ok-bg); color: var(--ok); }
.badge.bi { background: var(--warn-bg); color: var(--warn); }

/* ---------- Vorschau ---------- */

pre.preview {
  background: #0f172a;
  color: #e2e8f0;
  padding: 14px 16px;
  border-radius: 6px;
  font-family: var(--mono);
  font-size: 12.5px;
  line-height: 1.5;
  overflow: auto;
  max-height: 420px;
  margin: 0;
  white-space: pre;
}

.preview-meta { display: flex; gap: 18px; color: var(--muted); font-size: 13px; margin: 10px 0; flex-wrap: wrap; }

/* ---------- Login ---------- */

body.login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: linear-gradient(160deg, #14304f 0%, #1f5fa8 100%);
}

.login-card {
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.25);
  padding: 32px 36px;
  width: 100%;
  max-width: 400px;
}

.login-card h1 { margin: 0 0 4px; font-size: 20px; }
.login-card p.sub { margin: 0 0 22px; color: var(--muted); font-size: 13px; }
.login-card .field { margin-bottom: 16px; }
.login-card button.btn { width: 100%; }

/* ---------- Kundenstamm ---------- */

table.rows td input.w-full { width: 100%; min-width: 120px; }

footer.foot { text-align: center; color: var(--muted); font-size: 12px; padding: 20px; }

@media (max-width: 720px) {
  .topbar { padding: 0 14px; }
  main.container { padding: 14px; }
  section.panel { padding: 16px; }
}