/* ── CSS-Variablen & Reset ────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --imi-dark:    #05263d;
  --imi-navy:    #0b3c5d;
  --imi-navy-l:  #1a5a85;
  --imi-navy-ll: #2272a0;
  --imi-teal:    #00bfae;
  --imi-teal-d:  #00897b;
  --imi-bg:      #f8fafc;
  --imi-border:  #d1dce6;
  --imi-muted:   #5a7080;
  --imi-light:   #e3f2fd;
  --imi-text:    #1a2634;
  --imi-error:   #dc2626;
  --imi-error-bg:#fef2f2;
  --imi-warn-bg: #fff8e1;
  --imi-warn-bd: #ffe082;
  --imi-warn-acc:#f9a825;
  --radius:      8px;
  --shadow-card: 0 4px 12px rgba(0,0,0,.05);
  --transition:  .2s ease;
}

/* ── Base & Layout ───────────────────────────────────────────────────────── */
body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: var(--imi-bg);
  color: var(--imi-text);
  line-height: 1.6;
  font-size: 15px;
}
.container {
  max-width: 1060px;
  margin: 30px auto;
  padding: 0 20px;
}

/* FIX-10: noscript-Warnung – standardmässig hidden, via <noscript><style> eingeblendet */
.noscript-warn {
  display: none;
  background: var(--imi-error-bg);
  border: 2px solid var(--imi-error);
  border-radius: var(--radius);
  color: var(--imi-error);
  font-weight: 700;
  font-size: 15px;
  padding: 16px 24px;
  margin: 16px;
  text-align: center;
}

/* Utility */
.hidden { display: none !important; }
.mt14   { margin-top: 14px; }

/* ── Header ──────────────────────────────────────────────────────────────── */
header {
  background: linear-gradient(90deg, var(--imi-dark) 0%, var(--imi-navy) 100%);
  padding: 15px 25px;
  color: #fff;
  box-shadow: 0 2px 8px rgba(0,0,0,.3);
}
.sitename {
  font-size: 24px;
  font-weight: 700;
  text-decoration: none;
  color: #fff;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
#headerLogo { height: 32px; width: auto; }

/* ── Navigation / Breadcrumb ─────────────────────────────────────────────── */
/* FIX-10: nav statt div – Landmark-Semantik */
.breadcrumb { margin-top: 8px; font-size: 12px; color: #cbd5e1; }
.breadcrumb a { color: #fff; text-decoration: none; }
.breadcrumb a:hover { color: var(--imi-teal); }
.breadcrumb a:focus-visible {
  outline: 3px solid var(--imi-teal);
  outline-offset: 2px;
  border-radius: 2px;
}
.back-link {
  display: inline-block;
  margin-bottom: 15px;
  text-decoration: none;
  color: var(--imi-navy);
  font-size: 14px;
  font-weight: 700;
}
.back-link:hover { color: var(--imi-teal-d); }
.back-link:focus-visible {
  outline: 3px solid var(--imi-teal);
  outline-offset: 2px;
  border-radius: 3px;
}

/* ── Intro-Box ───────────────────────────────────────────────────────────── */
.imi-intro {
  background: linear-gradient(105deg, var(--imi-light) 0%, rgba(0,191,174,.06) 100%);
  border: 1px solid rgba(21,101,160,.18);
  border-left: 4px solid var(--imi-navy);
  border-radius: var(--radius);
  padding: 24px 28px;
  margin-bottom: 22px;
}
.imi-intro h2 { margin-bottom: 10px; color: var(--imi-navy); font-size: 20px; font-weight: 700; }
.imi-intro p  { font-size: 15px; color: var(--imi-muted); }

/* ── Main Tool Tabs ──────────────────────────────────────────────────────── */
.main-tabs {
  display: flex;
  gap: 0;
  margin-bottom: -1px;
  position: relative;
  z-index: 2;
}
.main-tab {
  padding: 11px 28px;
  border: 1px solid var(--imi-border);
  border-bottom: none;
  border-radius: var(--radius) var(--radius) 0 0;
  background: #eef2f7;
  cursor: pointer;
  font-size: 14px;
  font-weight: 700;
  color: var(--imi-muted);
  transition: background var(--transition), color var(--transition);
  letter-spacing: .02em;
  font-family: inherit;
}
.main-tab.active  { background: var(--imi-navy); color: #fff; border-color: var(--imi-navy); }
.main-tab:hover:not(.active) { background: #dbe9f5; color: var(--imi-navy); }
.main-tab:focus-visible {
  outline: 3px solid var(--imi-teal);
  outline-offset: -3px;
  border-radius: var(--radius) var(--radius) 0 0;
}

/* ── Main Panel ──────────────────────────────────────────────────────────── */
.main-panel {
  border: 1px solid var(--imi-border);
  border-radius: 0 var(--radius) var(--radius) var(--radius);
  background: #fff;
  box-shadow: var(--shadow-card);
  margin-bottom: 22px;
}
.panel-section {
  padding: 24px 28px;
  border-bottom: 1px solid #f0f4f8;
}
.panel-section:last-child { border-bottom: none; }

/* ── Content-Box ─────────────────────────────────────────────────────────── */
.content-box {
  background: #fff;
  border: 1px solid var(--imi-border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  margin-bottom: 22px;
}
.box-header {
  background: linear-gradient(90deg, var(--imi-navy) 0%, var(--imi-navy-l) 45%, var(--imi-navy-ll) 100%);
  color: #fff;
  padding: 12px 20px;
  font-size: 14px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .07em;
  position: relative;
}
.box-header::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--imi-teal) 0%, rgba(0,191,174,.3) 55%, transparent 100%);
}
.box-body { padding: 24px 28px; }

/* ── Section Title ───────────────────────────────────────────────────────── */
.section-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--imi-navy);
  text-transform: uppercase;
  letter-spacing: .06em;
  margin-bottom: 12px;
  padding-bottom: 6px;
  border-bottom: 2px solid var(--imi-light);
}
.optional-hint { font-weight: 400; text-transform: none; font-size: 12px; color: #94a3b8; }

/* ── Formular-Elemente ───────────────────────────────────────────────────── */
label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--imi-muted);
  margin-bottom: 5px;
  margin-top: 14px;
}
label:first-of-type { margin-top: 0; }
.inline-label { display: inline; margin-top: 0; font-weight: 400; cursor: pointer; }

textarea,
select,
input[type="text"],
input[type="number"] {
  width: 100%;
  padding: 9px 12px;
  border: 1px solid var(--imi-border);
  border-radius: 6px;
  font-size: 14px;
  color: var(--imi-text);
  background: #fff;
  transition: border-color var(--transition), box-shadow var(--transition);
  font-family: inherit;
}
textarea {
  font-family: 'Cascadia Code', 'Consolas', monospace;
  resize: vertical;
  min-height: 100px;
}
textarea:focus, select:focus, input:focus {
  outline: none;
  border-color: var(--imi-teal);
  box-shadow: 0 0 0 3px rgba(0,191,174,.15);
}
input[type="text"].sm,
input[type="number"].sm,
select.sm { padding: 7px 10px; font-size: 13px; }

/* FIX-20: code-Elemente im Hint-Text sauber stylen */
code {
  font-family: 'Cascadia Code', 'Consolas', monospace;
  font-size: 12px;
  background: #eef2f7;
  border: 1px solid #d1dce6;
  border-radius: 3px;
  padding: 1px 5px;
  color: var(--imi-navy);
}

/* ── Checkbox ────────────────────────────────────────────────────────────── */
.checkbox-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 10px;
  font-size: 14px;
  color: var(--imi-text);
}
.checkbox-row input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--imi-teal);
  cursor: pointer;
  flex-shrink: 0;
}

/* ── Buttons ─────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 10px 20px;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 700;
  transition: background var(--transition), color var(--transition),
              border-color var(--transition);
  font-family: inherit;
  min-height: 44px; /* WCAG 2.5.5 Touch-Target */
}
.btn:focus-visible { outline: 3px solid var(--imi-teal); outline-offset: 2px; }
.btn-primary   { background: var(--imi-navy); color: #fff; }
.btn-primary:hover   { background: #1565a0; }
.btn-secondary { background: var(--imi-teal); color: #fff; }
.btn-secondary:hover { background: var(--imi-teal-d); }
.btn-outline   { background: #fff; color: var(--imi-navy); border: 1px solid var(--imi-navy); }
.btn-outline:hover   { background: var(--imi-light); }
.btn-danger    { background: #fff; color: #c0392b; border: 1px solid #e0b0aa; }
.btn-danger:hover    { background: var(--imi-error-bg); border-color: #c0392b; }

.btn-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 18px;
  align-items: center;
}

.add-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 6px 14px;
  background: #f0f7ff;
  border: 1px dashed #90bfe0;
  border-radius: 5px;
  cursor: pointer;
  font-size: 13px;
  color: var(--imi-navy);
  font-weight: 600;
  transition: background var(--transition), border-style var(--transition);
  margin-top: 4px;
  font-family: inherit;
  min-height: 36px;
}
.add-btn:hover { background: var(--imi-light); border-style: solid; }
.add-btn:focus-visible { outline: 3px solid var(--imi-teal); outline-offset: 2px; }

.del-btn {
  background: transparent;
  border: 1px solid #fca5a5;
  color: var(--imi-error);
  border-radius: 4px;
  cursor: pointer;
  padding: 5px 10px;
  font-size: 12px;
  font-weight: 700;
  transition: background var(--transition), border-color var(--transition);
  white-space: nowrap;
  font-family: inherit;
  min-height: 36px;
}
.del-btn:hover { background: var(--imi-error-bg); border-color: var(--imi-error); }
.del-btn:focus-visible { outline: 3px solid var(--imi-teal); outline-offset: 2px; }

/* ── Grid-Helpers ────────────────────────────────────────────────────────── */
.two-col   { display: grid; grid-template-columns: 1fr 1fr;         gap: 16px; }
.three-col { display: grid; grid-template-columns: 1fr 1fr 1fr;     gap: 16px; }
.four-col  { display: grid; grid-template-columns: 1fr 1fr 1fr 1fr; gap: 12px; }

/* ── Tool-spezifische Styles ─────────────────────────────────────────────── */

/* Output area */
.output-area {
  background: #f4f6f9;
  border: 1px solid #d8dfe8;
  border-left: 3px solid #2196d3;
  border-radius: var(--radius);
  padding: 18px 22px;
  min-height: 160px;
  font-family: 'Cascadia Code', 'Fira Code', 'Consolas', monospace;
  font-size: 13px;
  line-height: 1.8;
  color: #2d3e50;
  white-space: pre-wrap;
  word-break: break-all;
  max-height: 460px;
  overflow: auto;
}
/* Flush-Variante: kein Radius oben (für Tab-Panel-Content) */
.output-area--flush {
  border-radius: 0 0 6px 6px;
  border: none;
  border-top: 1px solid var(--imi-border);
}

/* Info strip / badges */
.info-strip {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 14px;
}
.info-badge {
  background: var(--imi-light);
  border: 1px solid #2196d3;
  border-radius: 6px;
  padding: 5px 12px;
  font-size: 12px;
  font-weight: 600;
  color: var(--imi-navy);
}

/* Error / status */
.error {
  background: var(--imi-error-bg);
  border: 1px solid #fca5a5;
  border-left: 3px solid var(--imi-error);
  border-radius: 6px;
  padding: 10px 16px;
  font-size: 14px;
  color: var(--imi-error);
  margin-top: 12px;
}
.stat-line  { margin-top: 10px; font-size: 13px; color: var(--imi-muted); }
.hint-text  { font-size: 13px; color: var(--imi-muted); margin-bottom: 12px; }

/* Inline-Erklärung unter Label-Text */
.field-hint {
  display: block;
  font-size: 11px;
  font-weight: 400;
  color: #94a3b8;
  margin-top: 1px;
  line-height: 1.4;
}

/* WHERE / condition builder */
.condition-row {
  display: grid;
  grid-template-columns: 2fr 1fr 2fr auto;
  gap: 8px;
  align-items: start;
  margin-bottom: 8px;
}
.cond-logic-box { margin-top: 10px; margin-bottom: 10px; }
.cond-logic-label { font-size: 12px; color: var(--imi-muted); margin-bottom: 6px; }
.cond-logic {
  display: flex;
  border: 1px solid var(--imi-border);
  border-radius: 6px;
  overflow: hidden;
  width: fit-content;
}
.cond-logic-btn {
  padding: 6px 20px;
  background: var(--imi-bg);
  border: none;
  cursor: pointer;
  font-size: 12px;
  font-weight: 700;
  color: var(--imi-muted);
  transition: background var(--transition), color var(--transition);
  font-family: inherit;
  min-height: 36px;
}
.cond-logic-btn.active { background: var(--imi-navy); color: #fff; }
.cond-logic-btn:focus-visible { outline: 3px solid var(--imi-teal); outline-offset: -2px; }
.cond-val-wrap { display: grid; grid-template-columns: 1fr; gap: 4px; }
.cond-hint { font-size: 11px; color: #94a3b8; }

/* JOIN builder */
.join-row {
  display: grid;
  grid-template-columns: 1fr 1.5fr 1.5fr auto;
  gap: 8px;
  align-items: center;
  margin-bottom: 8px;
}

/* ORDER BY */
.order-row {
  display: grid;
  grid-template-columns: 1.5fr 1fr auto;
  gap: 8px;
  align-items: center;
  margin-bottom: 8px;
}

/* CREATE TABLE rows – eigene Klasse (nicht .four-col) für saubere Abgrenzung */
.create-row {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr auto;
  gap: 12px;
  align-items: center;
  margin-bottom: 8px;
}

/* INSERT / UPDATE rows – span-Hack via CSS-Klasse statt inline style */
.span2 { grid-column: span 2; }

/* Leere CSV-Zellen in der Vorschau */
.cell-empty { color: #94a3b8; font-style: italic; font-size: 12px; }

/* Output inner tabs */
.tab-row {
  display: flex;
  gap: 2px;
  margin-bottom: -1px;
  position: relative;
  z-index: 1;
}
.tab {
  padding: 8px 20px;
  border: 1px solid var(--imi-border);
  border-bottom: none;
  border-radius: 6px 6px 0 0;
  background: var(--imi-bg);
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
  color: var(--imi-muted);
  transition: background var(--transition), color var(--transition);
  font-family: inherit;
}
.tab.active {
  background: #fff;
  color: var(--imi-navy);
  border-color: var(--imi-navy);
  border-bottom-color: #fff;
}
.tab:hover:not(.active) { background: var(--imi-light); color: var(--imi-navy); }
.tab:focus-visible { outline: 3px solid var(--imi-teal); outline-offset: -2px; }
.tab-content { border: 1px solid var(--imi-border); border-radius: 0 6px 6px 6px; }
.preview-wrap { padding: 14px; overflow-x: auto; }

/* Copy flash */
.copy-flash {
  position: fixed;
  top: 24px;
  right: 24px;
  background: var(--imi-teal-d);
  color: #fff;
  padding: 12px 22px;
  border-radius: var(--radius);
  font-weight: 700;
  font-size: 14px;
  box-shadow: 0 4px 16px rgba(0,0,0,.18);
  opacity: 0;
  transition: opacity .3s;
  pointer-events: none;
  z-index: 999;
}
.copy-flash.show { opacity: 1; }

/* Preview table */
.preview-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  border-radius: var(--radius);
  overflow: hidden;
  font-size: 13px;
  margin-top: 14px;
  border: 1px solid var(--imi-border);
}
.preview-table th {
  background: #4a5c6a;
  color: rgba(255,255,255,.92);
  padding: 8px 14px;
  font-weight: 600;
  text-align: left;
  font-size: 12px;
  letter-spacing: .03em;
}
.preview-table td {
  background: #fff;
  border-bottom: 1px solid rgba(209,220,230,.5);
  padding: 7px 14px;
  vertical-align: top;
}
.preview-table tr:nth-child(even) td { background: #f7fafd; }
.table-scroll { overflow-x: auto; }

/* Disclaimer */
.disclaimer {
  background: linear-gradient(105deg, var(--imi-warn-bg) 0%, #fffde7 100%);
  border: 1px solid var(--imi-warn-bd);
  border-left: 4px solid var(--imi-warn-acc);
  border-radius: var(--radius);
  padding: 18px 22px;
  margin-bottom: 22px;
}
.disclaimer strong { color: #b37a00; display: block; margin-bottom: 6px; font-size: 14px; }
.disclaimer p { font-size: 13px; color: #7a6000; line-height: 1.7; }

/* Info list */
.info-list { margin: 0 0 0 20px; line-height: 2; }

/* Ref links */
.ref-links { margin-top: 14px; font-size: 14px; color: var(--imi-muted); }
.ref-links a { color: var(--imi-navy); font-weight: 600; text-decoration: none; }
.ref-links a:hover { color: var(--imi-teal-d); text-decoration: underline; }
.ref-links a:focus-visible {
  outline: 3px solid var(--imi-teal);
  outline-offset: 2px;
  border-radius: 2px;
}

/* ── Footer ──────────────────────────────────────────────────────────────── */
footer {
  text-align: center;
  font-size: 13px;
  color: #64748b;
  margin-top: 40px;
  padding-bottom: 30px;
}
footer a { color: var(--imi-navy); text-decoration: none; margin: 0 10px; }
footer a:hover { color: var(--imi-teal-d); }
footer a:focus-visible {
  outline: 3px solid var(--imi-teal);
  outline-offset: 2px;
  border-radius: 2px;
}

/* ── Responsive ──────────────────────────────────────────────────────────── */
@media (max-width: 700px) {
  .two-col, .three-col, .four-col { grid-template-columns: 1fr; }
  .condition-row { grid-template-columns: 1fr 1fr; gap: 6px; }
  .join-row      { grid-template-columns: 1fr 1fr; gap: 6px; }
  .order-row     { grid-template-columns: 1fr 1fr; gap: 6px; }
  .create-row    { grid-template-columns: 1fr 1fr; gap: 6px; }
  .panel-section, .box-body { padding: 16px; }
  .main-tab { padding: 10px 14px; font-size: 13px; }
  .imi-intro { padding: 18px 16px; }
  .copy-flash { top: auto; bottom: 16px; right: 16px; left: 16px; text-align: center; }
}
@media (max-width: 400px) {
  .btn-row { flex-direction: column; align-items: stretch; }
  .btn { justify-content: center; }
}

/* FIX-22: Smooth-Scroll nur wenn kein prefers-reduced-motion */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}