:root {
  --rv-red: #e2001a;
  --rv-red-dark: #b80016;
  --grey: #4a4a4a;
  --grey-light: #f4f4f5;
  --grey-mid: #d9d9dc;
  --text: #1f1f1f;
  --low: #fff4cc;     /* gelb: niedrige Konfidenz */
  --low-border: #f0c419;
  --empty: #ffe0e0;   /* rot: leer */
  --empty-border: #e2001a;
  --ok: #1f9d55;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font);
  color: var(--text);
  background: #fafafa;
  font-size: 15px;
  line-height: 1.45;
}

/* ---------- Login ---------- */
.login-body {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: linear-gradient(135deg, #f4f4f5 0%, #e9e9eb 100%);
}
.login-card {
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 8px 40px rgba(0,0,0,0.10);
  padding: 40px 36px;
  width: 360px;
  max-width: 92vw;
}
.login-logo { text-align: center; margin-bottom: 24px; }
.login-logo h1 { font-size: 20px; margin: 14px 0 0; color: var(--grey); }
.logo-box {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--rv-red);
  color: #fff;
  font-weight: 800;
  letter-spacing: 1px;
  border-radius: 8px;
  width: 64px; height: 48px;
  font-size: 22px;
}
.login-card label { display: block; font-size: 13px; color: var(--grey); margin: 14px 0 5px; font-weight: 600; }
.login-card input {
  width: 100%; padding: 11px 12px;
  border: 1px solid var(--grey-mid); border-radius: 8px; font-size: 15px;
}
.login-card input:focus { outline: none; border-color: var(--rv-red); }
.login-card button {
  width: 100%; margin-top: 22px; padding: 12px;
  background: var(--rv-red); color: #fff; border: none; border-radius: 8px;
  font-size: 15px; font-weight: 600; cursor: pointer;
}
.login-card button:hover { background: var(--rv-red-dark); }
.login-card button:disabled { opacity: .6; cursor: default; }
.login-footer { text-align: center; color: #999; font-size: 12px; margin-top: 20px; }
.error { color: var(--rv-red); font-size: 13px; min-height: 18px; margin: 10px 0 0; }

/* ---------- App Header ---------- */
.app-header {
  display: flex; align-items: center; justify-content: space-between;
  background: #fff; border-bottom: 3px solid var(--rv-red);
  padding: 12px 22px; box-shadow: 0 1px 4px rgba(0,0,0,.06);
}
.header-left { display: flex; align-items: center; gap: 14px; }
.header-left .logo-box { width: 52px; height: 38px; font-size: 17px; }
.header-title { font-size: 18px; font-weight: 700; color: var(--grey); }
.header-right { display: flex; align-items: center; gap: 14px; }
#userLabel { color: var(--grey); font-size: 14px; }

/* ---------- Tabs ---------- */
.tabs {
  display: flex; gap: 2px; background: #fff;
  border-bottom: 1px solid var(--grey-mid);
  padding: 0 14px; overflow-x: auto;
}
.tab {
  background: none; border: none; padding: 14px 18px;
  font-size: 14px; font-weight: 600; color: var(--grey);
  cursor: pointer; border-bottom: 3px solid transparent; white-space: nowrap;
}
.tab:hover { color: var(--rv-red); }
.tab.active { color: var(--rv-red); border-bottom-color: var(--rv-red); }

main { max-width: 1100px; margin: 0 auto; padding: 26px 22px 80px; }
.tab-panel { display: none; }
.tab-panel.active { display: block; }
h2 { font-size: 20px; color: var(--grey); margin: 0 0 18px; }
h3 { font-size: 15px; color: var(--grey); margin: 0 0 8px; }
.subtle { font-weight: 400; font-size: 13px; color: #999; }

/* ---------- Buttons ---------- */
.btn-primary, .btn-secondary, .btn-ghost, .btn-download {
  font-family: var(--font); font-size: 14px; font-weight: 600;
  border-radius: 8px; cursor: pointer; border: 1px solid transparent;
  padding: 10px 18px;
}
.btn-primary { background: var(--rv-red); color: #fff; }
.btn-primary:hover { background: var(--rv-red-dark); }
.btn-primary:disabled { background: var(--grey-mid); color: #fff; cursor: default; }
.btn-secondary { background: #fff; color: var(--rv-red); border-color: var(--rv-red); }
.btn-secondary:hover { background: #fff3f3; }
.btn-ghost { background: transparent; color: var(--grey); border-color: var(--grey-mid); }
.btn-ghost:hover { border-color: var(--grey); }
.btn-download {
  display: inline-block; background: var(--grey); color: #fff; text-decoration: none;
  padding: 11px 18px;
}
.btn-download:hover { background: #333; }

/* ---------- Dropzone ---------- */
.dropzone {
  border: 2px dashed var(--grey-mid); border-radius: 12px;
  padding: 44px 20px; text-align: center; background: #fff;
  cursor: pointer; transition: all .15s;
}
.dropzone.dragover { border-color: var(--rv-red); background: #fff5f5; }
.dz-text { font-size: 16px; color: var(--grey); margin: 0 0 6px; }
.dz-link { color: var(--rv-red); text-decoration: underline; }
.dz-hint { font-size: 12px; color: #999; margin: 0; }

.file-list { list-style: none; padding: 0; margin: 18px 0 0; }
.file-list li {
  display: flex; align-items: center; gap: 12px;
  background: #fff; border: 1px solid var(--grey-mid); border-radius: 8px;
  padding: 10px 14px; margin-bottom: 8px;
}
.file-icon { font-size: 20px; }
.file-name { flex: 1; font-size: 14px; word-break: break-all; }
.file-size { color: #999; font-size: 12px; }
.file-remove { background: none; border: none; color: var(--rv-red); cursor: pointer; font-size: 18px; }

.action-row { display: flex; align-items: center; gap: 16px; margin-top: 20px; flex-wrap: wrap; }
.provider-hint { color: #777; font-size: 13px; }

/* ---------- Progress ---------- */
.progress { margin-top: 26px; background: #fff; border: 1px solid var(--grey-mid); border-radius: 12px; padding: 24px; }
.spinner {
  width: 36px; height: 36px; border: 4px solid var(--grey-mid);
  border-top-color: var(--rv-red); border-radius: 50%;
  animation: spin .8s linear infinite; margin: 0 auto 16px;
}
@keyframes spin { to { transform: rotate(360deg); } }
.steps { list-style: none; padding: 0; margin: 0; max-width: 420px; margin: 0 auto; }
.steps li { padding: 7px 0 7px 28px; position: relative; color: #aaa; font-size: 14px; }
.steps li::before { content: "○"; position: absolute; left: 4px; }
.steps li.done { color: var(--ok); }
.steps li.done::before { content: "✓"; color: var(--ok); }
.steps li.active { color: var(--rv-red); font-weight: 600; }
.steps li.active::before { content: "●"; color: var(--rv-red); }
.progress-note { text-align: center; color: #999; font-size: 12px; margin: 14px 0 0; }

/* ---------- Result ---------- */
.result-box { margin-top: 26px; background: #fff; border: 1px solid var(--grey-mid); border-radius: 12px; padding: 22px; }
.result-summary { font-size: 15px; margin: 0 0 14px; }
.cost-line { display: inline-block; margin-top: 6px; color: var(--grey); background: var(--grey-light); padding: 4px 10px; border-radius: 6px; }
.download-row { display: flex; gap: 12px; flex-wrap: wrap; }
.warning {
  background: #fff4cc; border: 1px solid var(--low-border); color: #7a5c00;
  border-radius: 8px; padding: 10px 14px; font-size: 13px; margin: 0 0 14px;
}
.hint { color: #888; font-size: 13px; }
.hint code { background: var(--grey-light); padding: 1px 5px; border-radius: 4px; font-size: 12px; }

/* ---------- Vorschau-Tabellen ---------- */
.legend { display: flex; gap: 22px; margin-bottom: 16px; font-size: 13px; color: var(--grey); }
.legend-item { display: flex; align-items: center; gap: 7px; }
.swatch { width: 16px; height: 16px; border-radius: 4px; display: inline-block; }
.swatch.low { background: var(--low); border: 1px solid var(--low-border); }
.swatch.empty { background: var(--empty); border: 1px solid var(--empty-border); }

.table-block { margin-bottom: 30px; }
.table-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 10px; }
.table-scroll { overflow-x: auto; border: 1px solid var(--grey-mid); border-radius: 8px; background: #fff; }
table { border-collapse: collapse; width: 100%; font-size: 13px; }
th, td { border: 1px solid var(--grey-mid); padding: 7px 10px; text-align: left; white-space: nowrap; }
th { background: var(--grey-light); font-weight: 700; color: var(--grey); position: sticky; top: 0; }
td[contenteditable] { min-width: 80px; cursor: text; }
td[contenteditable]:focus { outline: 2px solid var(--rv-red); outline-offset: -2px; }
td.cell-low { background: var(--low); }
td.cell-empty { background: var(--empty); }
.empty-hint { color: #999; font-style: italic; }

/* ---------- Kriterien ---------- */
.field-card { background: #fff; border: 1px solid var(--grey-mid); border-radius: 12px; padding: 20px; margin-bottom: 20px; }
.field-card > label { display: block; font-weight: 700; color: var(--grey); margin-bottom: 8px; }
select, textarea, .felder-editor input {
  font-family: var(--font); font-size: 14px;
  border: 1px solid var(--grey-mid); border-radius: 8px; padding: 9px 11px;
}
select { min-width: 240px; }
textarea { width: 100%; resize: vertical; line-height: 1.5; }
.provider-status { margin-top: 12px; font-size: 14px; }
.provider-status .badge { display: inline-flex; align-items: center; gap: 7px; padding: 6px 12px; border-radius: 8px; }
.badge.ok { background: #e6f6ec; color: var(--ok); }
.badge.missing { background: var(--empty); color: var(--rv-red); }
.provider-status .keyhint { color: var(--rv-red); font-size: 13px; margin-top: 8px; }

.felder-editor { display: flex; flex-direction: column; gap: 8px; margin-bottom: 10px; }
.feld-row { display: flex; gap: 8px; align-items: center; }
.feld-row .f-name { width: 220px; flex: none; }
.feld-row .f-desc { flex: 1; }
.feld-row .f-del { background: none; border: none; color: var(--rv-red); font-size: 18px; cursor: pointer; }

.sticky-save {
  position: sticky; bottom: 0; background: #fafafa;
  padding: 14px 0; border-top: 1px solid var(--grey-mid);
}
.save-status { color: var(--ok); font-size: 14px; }

/* ---------- Verlauf ---------- */
.cost-summary {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 14px; margin: 16px 0 22px;
}
.cost-card {
  background: #fff; border: 1px solid var(--grey-mid); border-radius: 12px;
  padding: 16px 18px; display: flex; flex-direction: column; gap: 4px;
}
.cost-card-label { font-size: 12px; color: #888; text-transform: uppercase; letter-spacing: .04em; }
.cost-card-value { font-size: 22px; font-weight: 700; color: var(--grey); }
.cost-card:nth-child(2) .cost-card-value { color: var(--rv-red); }
.cost-card-sub { font-size: 12px; color: #999; }

#historyTable td a { color: var(--rv-red); text-decoration: none; margin-right: 8px; }
#historyTable td a:hover { text-decoration: underline; }

/* ---------- Utils ---------- */
.hidden { display: none !important; }

@media (max-width: 640px) {
  .header-title { font-size: 15px; }
  .feld-row { flex-wrap: wrap; }
  .feld-row .f-name { width: 100%; }
  main { padding: 18px 14px 80px; }
}