/* ============================================================
 * FGZ Design System – ML Lernplattform Kapitel 1
 * Hausschrift: Lab Grotesque · Primary: FGZ Blau (#2350AC)
 * ============================================================ */

@font-face {
  font-family: "Lab Grotesque";
  src: url("assets/fonts/LabGrotesque-Regular.otf") format("opentype");
  font-weight: 400; font-style: normal; font-display: swap;
}
@font-face {
  font-family: "Lab Grotesque";
  src: url("assets/fonts/LabGrotesque-Italic.otf") format("opentype");
  font-weight: 400; font-style: italic; font-display: swap;
}
@font-face {
  font-family: "Lab Grotesque";
  src: url("assets/fonts/LabGrotesque-Bold.otf") format("opentype");
  font-weight: 700; font-style: normal; font-display: swap;
}
@font-face {
  font-family: "Lab Grotesque";
  src: url("assets/fonts/LabGrotesque-Black.otf") format("opentype");
  font-weight: 900; font-style: normal; font-display: swap;
}

:root {
  --fgz-blau:            #2350AC;
  --fgz-blau-pastell:    #BCD5F4;
  --fgz-nachtblau:       #002F71;
  --fgz-nachtblau-pastell:#BFCCDC;
  --fgz-seegruen:        #1C6979;
  --fgz-seegruen-pastell:#90BBC9;
  --fgz-himmelblau:      #00C3F5;
  --fgz-himmelblau-pastell:#AFEEFF;
  --fgz-aprikose:        #FF8766;
  --fgz-aprikose-pastell:#FFE8DE;
  --fgz-pflaume:         #9B7AED;
  --fgz-pflaume-pastell: #E0D6FF;
  --fgz-pistazie:        #B9D668;
  --fgz-pistazie-pastell:#EDFDC3;
  --fgz-minzgruen:       #28C7B5;
  --fgz-minzgruen-pastell:#B3EDE3;
  --fgz-honig:           #FFB54D;
  --fgz-honig-pastell:   #FFE0C0;

  --bg-page:        #FFFFFF;
  --bg-soft:        #F5F8FD;
  --bg-elevated:    #FFFFFF;
  --bg-tint:        var(--fgz-blau-pastell);
  --bg-code:        #0E1B3A;
  --bg-code-soft:   #F1F4F9;

  --border:         #DCE3EE;
  --border-strong:  #B9C6DA;

  --text:           #0E1B3A;
  --text-soft:      #4A556B;
  --text-muted:     #7E8AA0;
  --text-inverse:   #FFFFFF;

  --primary:        var(--fgz-blau);
  --primary-hover:  var(--fgz-nachtblau);
  --accent:         var(--fgz-himmelblau);

  --success:        var(--fgz-pistazie);
  --warn:           var(--fgz-honig);
  --danger:         var(--fgz-aprikose);

  --font-sans: "Lab Grotesque", Arial, "Helvetica Neue", Helvetica, sans-serif;
  --font-mono: "JetBrains Mono", "Fira Code", Consolas, Monaco, monospace;

  --fs-h1: 40px;
  --fs-h2: 26px;
  --fs-h3: 20px;
  --fs-lead: 18px;
  --fs-body: 16px;
  --fs-small: 13px;

  --shadow-sm: 0 1px 2px rgba(14,27,58,0.06);
  --shadow-md: 0 4px 16px rgba(14,27,58,0.08);
  --shadow-lg: 0 16px 48px rgba(14,27,58,0.12);

  --radius: 6px;
  --radius-lg: 10px;
}

/* ---------- Resets & base ---------- */
* { box-sizing: border-box; }
html, body {
  margin: 0; padding: 0;
  height: 100%;
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  line-height: 1.5;
  color: var(--text);
  background: var(--bg-page);
  overflow: hidden;
}
body { display: flex; flex-direction: column; }

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---------- Header ---------- */
.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 32px;
  background: #FFFFFF;
  border-bottom: 2px solid var(--fgz-blau);
  flex-shrink: 0;
  position: relative;
}
.brand { display: flex; align-items: center; gap: 18px; }
.brand-logo { height: 48px; width: auto; display: block; }
.brand-divider { width: 1px; height: 36px; background: var(--border-strong); }
.brand-text h1 {
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: 18px;
  margin: 0;
  color: var(--fgz-nachtblau);
  letter-spacing: -0.01em;
}
.subtitle { font-size: 13px; color: var(--text-muted); margin: 2px 0 0; font-weight: 400; }

.header-actions { display: flex; align-items: center; gap: 10px; }

/* ---------- Buttons ---------- */
.btn {
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 700;
  padding: 8px 16px;
  border: 1px solid var(--border);
  background: #FFFFFF;
  color: var(--text);
  border-radius: var(--radius);
  cursor: pointer;
  transition: all 0.15s ease;
  line-height: 1.2;
}
.btn:hover  { background: var(--bg-soft); border-color: var(--border-strong); }
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: 0.4; cursor: not-allowed; }

.btn-primary {
  background: var(--fgz-blau);
  border-color: var(--fgz-blau);
  color: #FFFFFF;
}
.btn-primary:hover {
  background: var(--fgz-nachtblau);
  border-color: var(--fgz-nachtblau);
}
.btn-secondary {
  background: #FFFFFF;
  border-color: var(--fgz-blau);
  color: var(--fgz-blau);
}
.btn-secondary:hover { background: var(--fgz-blau-pastell); }
.btn-ghost {
  background: transparent;
  border-color: transparent;
  color: var(--text-soft);
  font-weight: 700;
}
.btn-ghost:hover { background: var(--bg-soft); color: var(--fgz-blau); }

/* ---------- Layout ---------- */
.app-body { display: flex; flex: 1; overflow: hidden; }

.sidebar {
  width: 280px;
  flex-shrink: 0;
  background: var(--bg-soft);
  border-right: 1px solid var(--border);
  overflow-y: auto;
  padding: 18px 10px;
}

.main-content {
  flex: 1;
  overflow-y: auto;
  padding: 40px 48px 60px;
  position: relative;
}

.app-footer {
  padding: 10px 32px;
  background: #FFFFFF;
  border-top: 1px solid var(--border);
  font-size: 12px;
  color: var(--text-muted);
  text-align: center;
  flex-shrink: 0;
}

/* ---------- Sidebar ---------- */
.sidebar-title {
  padding: 4px 12px 14px;
  font-size: 11px;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  color: var(--fgz-nachtblau);
  border-bottom: 1px solid var(--border);
  margin-bottom: 8px;
}
#chapter-nav { display: flex; flex-direction: column; gap: 1px; }
.nav-chapter {
  display: block;
  padding: 9px 12px;
  margin: 0 4px;
  border-radius: var(--radius);
  color: var(--text-soft);
  cursor: pointer;
  font-family: var(--font-sans);
  font-size: 13.5px;
  font-weight: 400;
  line-height: 1.4;
  user-select: none;
  border: none;
  background: none;
  text-align: left;
  width: calc(100% - 8px);
  transition: background 0.12s, color 0.12s;
}
.nav-chapter:hover { background: #FFFFFF; color: var(--fgz-nachtblau); }
.nav-chapter.active {
  background: var(--fgz-blau);
  color: #FFFFFF;
  font-weight: 700;
}
.nav-chapter.done::before {
  content: "✓ ";
  color: var(--fgz-pistazie);
  font-weight: 900;
}
.nav-chapter.active.done::before { color: #FFFFFF; }

.sidebar-info {
  margin: 18px 6px 60px;
  padding: 12px 14px;
  background: #FFFFFF;
  border: 1px solid var(--border);
  border-left: 3px solid var(--fgz-himmelblau);
  border-radius: var(--radius-lg);
  font-size: 12.5px;
  color: var(--text-soft);
  line-height: 1.55;
}
.sidebar-info strong { color: var(--fgz-nachtblau); }

/* ---------- Panels ---------- */
.panel.hidden { display: none; }
.panel-header { margin-bottom: 22px; }
.panel-header h2 {
  margin: 0 0 6px;
  font-size: var(--fs-h2);
  font-weight: 900;
  color: var(--fgz-nachtblau);
  letter-spacing: -0.01em;
}
.muted { color: var(--text-muted); font-size: 14px; }

/* ---------- Theory ---------- */
#theory-content { max-width: 880px; }
#theory-content h1 {
  font-size: var(--fs-h1);
  font-weight: 900;
  color: var(--fgz-nachtblau);
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin: 0 0 18px;
}
#theory-content h2 {
  font-size: var(--fs-h2);
  font-weight: 900;
  color: var(--fgz-blau);
  letter-spacing: -0.01em;
  margin: 36px 0 10px;
}
#theory-content h3 {
  font-size: var(--fs-h3);
  font-weight: 700;
  color: var(--fgz-nachtblau);
  margin: 22px 0 8px;
}
#theory-content p, #theory-content li {
  font-size: var(--fs-body);
  line-height: 1.65;
  color: var(--text);
}
#theory-content code {
  font-family: var(--font-mono);
  background: var(--bg-code-soft);
  padding: 2px 6px;
  border-radius: 3px;
  font-size: 13.5px;
  color: var(--fgz-nachtblau);
  border: 1px solid var(--border);
}
#theory-content table {
  width: auto;
  border-collapse: collapse;
  margin: 14px 0;
  font-size: 14px;
  background: #FFFFFF;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
#theory-content th, #theory-content td {
  padding: 9px 14px;
  border-bottom: 1px solid var(--border);
  border-right: 1px solid var(--border);
  text-align: left;
}
#theory-content tr:last-child td { border-bottom: none; }
#theory-content th:last-child, #theory-content td:last-child { border-right: none; }
#theory-content th {
  background: var(--fgz-blau-pastell);
  color: var(--fgz-nachtblau);
  font-weight: 700;
}
#theory-content table.target-highlight th:last-child,
#theory-content table.target-highlight td:last-child {
  background: var(--fgz-pistazie-pastell);
  color: var(--fgz-nachtblau);
  font-weight: 700;
}

#theory-content blockquote {
  margin: 16px 0;
  padding: 12px 16px;
  border-left: 4px solid var(--fgz-himmelblau);
  background: var(--fgz-himmelblau-pastell);
  border-radius: var(--radius);
  color: #064f73;
  font-style: italic;
}

/* Info-Boxen */
.info-box {
  padding: 14px 16px;
  border-radius: var(--radius-lg);
  margin: 16px 0;
  border-left: 4px solid;
  font-size: 14px;
  line-height: 1.6;
}
.info-box.tip    { background: var(--fgz-himmelblau-pastell); border-color: var(--fgz-himmelblau); color: #064f73; }
.info-box.warn   { background: var(--fgz-honig-pastell);      border-color: var(--fgz-honig);      color: #7a4400; }
.info-box.danger { background: var(--fgz-aprikose-pastell);   border-color: var(--fgz-aprikose);   color: #a13b1c; }
.info-box.note   { background: var(--fgz-pflaume-pastell);    border-color: var(--fgz-pflaume);    color: #2a1d5a; }
.info-box > strong:first-child { display: block; margin-bottom: 6px; color: inherit; font-size: 15px; }
.info-box p { margin: 6px 0; }
.info-box ul { margin: 6px 0; padding-left: 20px; }

/* Aufgabe-Box */
.aufgabe {
  margin: 18px 0;
  padding: 14px 18px;
  background: var(--fgz-aprikose-pastell);
  border-left: 4px solid var(--fgz-aprikose);
  border-radius: var(--radius-lg);
}
.aufgabe-header {
  font-weight: 900;
  color: #a13b1c;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  font-size: 12px;
  margin-bottom: 6px;
}
.aufgabe p { margin: 4px 0; }
.aufgabe textarea {
  width: 100%;
  min-height: 70px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-family: var(--font-sans);
  font-size: 14px;
  margin-top: 8px;
  background: #FFFFFF;
  resize: vertical;
}
.aufgabe textarea:focus { outline: none; border-color: var(--fgz-aprikose); box-shadow: 0 0 0 3px rgba(255,135,102,0.2); }

.merkzettel {
  margin: 32px 0 12px;
  padding: 18px 22px;
  background: var(--fgz-blau-pastell);
  border-left: 6px solid var(--fgz-blau);
  border-radius: var(--radius-lg);
}
.merkzettel h3 {
  margin: 0 0 10px;
  color: var(--fgz-nachtblau);
  font-size: 13px;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 1.2px;
}
.merkzettel ul {
  margin: 0;
  padding-left: 20px;
  line-height: 1.75;
  font-size: 14px;
}
.merkzettel li { margin-bottom: 4px; }

/* ---------- Lesson Nav ---------- */
.lesson-nav {
  margin-top: 50px;
  padding-top: 24px;
  border-top: 2px solid var(--fgz-blau-pastell);
  display: flex;
  justify-content: space-between;
  gap: 10px;
}
.lesson-nav .btn { padding: 11px 22px; font-size: 14px; }

/* ============================================================
 * Tree Builder Specific
 * ============================================================ */

.builder-section {
  margin-top: 32px;
  padding-top: 22px;
  border-top: 2px solid var(--fgz-blau-pastell);
}
.builder-section:first-of-type { border-top: none; padding-top: 0; margin-top: 18px; }
.builder-section h3 {
  margin: 0 0 8px;
  font-size: var(--fs-h3);
  color: var(--fgz-blau);
  font-weight: 900;
}

.db-picker {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  margin-bottom: 20px;
  flex-wrap: wrap;
}
.db-picker select {
  font-family: var(--font-sans);
  background: #FFFFFF;
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 7px 10px;
  font-size: 14px;
  min-width: 220px;
}

/* ---------- Editierbare Datentabelle ---------- */
.data-table-wrapper {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: auto;
  background: #FFFFFF;
  max-height: 360px;
}
table.data-table {
  border-collapse: collapse;
  width: 100%;
  font-size: 13.5px;
}
table.data-table th, table.data-table td {
  padding: 0;
  border-bottom: 1px solid var(--border);
  border-right: 1px solid var(--border);
  text-align: left;
}
table.data-table th:last-child, table.data-table td:last-child { border-right: none; }
table.data-table tr:last-child td { border-bottom: none; }
table.data-table th {
  background: var(--fgz-blau-pastell);
  color: var(--fgz-nachtblau);
  font-weight: 700;
  position: sticky;
  top: 0;
  z-index: 2;
}
table.data-table th .col-head {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 8px 12px;
}
table.data-table th .col-name {
  flex: 1;
  background: transparent;
  border: none;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 13.5px;
  color: var(--fgz-nachtblau);
  outline: none;
  min-width: 60px;
}
table.data-table th .col-name:focus { background: #FFFFFF; border-radius: 3px; padding: 0 4px; }
table.data-table th .col-del {
  background: transparent;
  border: none;
  color: var(--fgz-nachtblau);
  cursor: pointer;
  font-size: 14px;
  padding: 0 4px;
  opacity: 0.5;
}
table.data-table th .col-del:hover { opacity: 1; color: var(--fgz-aprikose); }
table.data-table th.target-col { background: var(--fgz-pistazie-pastell); color: #4a6a00; }
table.data-table th.target-col .col-name { color: #4a6a00; }
table.data-table td.target-col { background: rgba(237, 253, 195, 0.5); font-weight: 700; }

table.data-table .cell-input {
  width: 100%;
  padding: 8px 12px;
  border: none;
  background: transparent;
  font-family: var(--font-sans);
  font-size: 13.5px;
  color: var(--text);
  outline: none;
}
table.data-table .cell-input:focus { background: var(--fgz-himmelblau-pastell); }
table.data-table .row-del {
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  font-size: 14px;
  width: 32px;
  text-align: center;
}
table.data-table .row-del:hover { color: var(--fgz-aprikose); }
table.data-table tr.selected-row td { background: var(--fgz-himmelblau-pastell); }
table.data-table tr.selected-row td.target-col { background: var(--fgz-pistazie-pastell); }

/* ---------- Vorschlags-Panel ---------- */
.suggestion-panel {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 14px 16px;
  min-height: 80px;
}
.suggestion-empty {
  color: var(--text-muted);
  font-style: italic;
  text-align: center;
  padding: 18px;
}
.suggestion-context {
  font-size: 13px;
  color: var(--text-soft);
  margin-bottom: 10px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
  font-family: var(--font-mono);
}
.suggestion-context .target-mix {
  display: inline-flex;
  gap: 6px;
  margin-left: 8px;
}
.suggestion-context .badge-yes,
.suggestion-context .badge-no {
  padding: 1px 8px;
  border-radius: 10px;
  font-weight: 700;
}
.suggestion-context .badge-yes { background: var(--fgz-pistazie-pastell); color: #4a6a00; }
.suggestion-context .badge-no  { background: var(--fgz-aprikose-pastell); color: #a13b1c; }
.suggestion-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 10px;
}
.suggestion-card {
  background: #FFFFFF;
  border: 2px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 10px 12px;
  cursor: pointer;
  transition: border-color 0.15s, transform 0.1s;
  position: relative;
}
.suggestion-card:hover {
  border-color: var(--fgz-blau);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}
.suggestion-card.best {
  border-color: var(--fgz-pistazie);
  background: linear-gradient(135deg, #FFFFFF 0%, var(--fgz-pistazie-pastell) 140%);
}
.suggestion-card.best::after {
  content: "★ Beste";
  position: absolute;
  top: -8px;
  right: 8px;
  background: var(--fgz-pistazie);
  color: #FFFFFF;
  padding: 2px 8px;
  font-size: 10px;
  border-radius: 10px;
  font-weight: 900;
  letter-spacing: 0.4px;
}
.suggestion-card.pure {
  border-color: var(--fgz-himmelblau);
  background: var(--fgz-himmelblau-pastell);
  cursor: default;
}
.suggestion-card.pure:hover { transform: none; box-shadow: none; }
.suggestion-card .question {
  font-weight: 700;
  color: var(--fgz-nachtblau);
  font-size: 14px;
  margin-bottom: 4px;
  font-family: var(--font-mono);
}
.suggestion-card .gini-bar {
  height: 6px;
  background: var(--bg-soft);
  border-radius: 3px;
  overflow: hidden;
  margin: 6px 0 6px;
}
.suggestion-card .gini-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--fgz-pistazie), var(--fgz-honig), var(--fgz-aprikose));
  transition: width 0.3s;
}
.suggestion-card .gini-value {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-soft);
}
.suggestion-card .split-preview {
  display: flex;
  gap: 8px;
  margin-top: 6px;
  font-size: 11px;
  font-family: var(--font-mono);
  color: var(--text-muted);
}
.suggestion-card .split-side {
  flex: 1;
  padding: 4px 6px;
  background: var(--bg-soft);
  border-radius: 3px;
}
.suggestion-card .split-side .side-label { font-weight: 700; color: var(--fgz-blau); }

/* ---------- Tree Canvas ---------- */
.tree-toolbar {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
  padding: 10px 12px;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.tree-toolbar .spacer { flex: 1; }
.tree-stats {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-soft);
}
.tree-stats strong { color: var(--fgz-nachtblau); }

.tree-canvas {
  background: #FFFFFF;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: auto;
  min-height: 280px;
  padding: 18px;
  box-shadow: var(--shadow-sm);
}
.tree-canvas svg { display: block; margin: 0 auto; min-width: 100%; }

/* SVG node groups */
.tree-canvas .node-group { cursor: pointer; }
.tree-canvas .node-group.leaf { cursor: default; }
.tree-canvas .node-rect {
  stroke-width: 2;
  transition: filter 0.15s;
}
.tree-canvas .node-rect.open {
  fill: var(--fgz-blau-pastell);
  stroke: var(--fgz-blau);
  stroke-dasharray: 4 3;
}
.tree-canvas .node-rect.question {
  fill: var(--fgz-blau-pastell);
  stroke: var(--fgz-blau);
}
.tree-canvas .node-rect.leaf-yes {
  fill: var(--fgz-pistazie-pastell);
  stroke: var(--fgz-pistazie);
}
.tree-canvas .node-rect.leaf-no {
  fill: var(--fgz-aprikose-pastell);
  stroke: var(--fgz-aprikose);
}
.tree-canvas .node-rect.leaf-mixed {
  fill: var(--fgz-honig-pastell);
  stroke: var(--fgz-honig);
}
.tree-canvas .node-group.selected .node-rect {
  filter: drop-shadow(0 0 6px var(--fgz-himmelblau));
  stroke-width: 3;
}
.tree-canvas .node-group:hover:not(.leaf) .node-rect {
  filter: brightness(0.97);
}
.tree-canvas .node-text {
  font-family: var(--font-sans);
  font-size: 13px;
  fill: var(--fgz-nachtblau);
  text-anchor: middle;
  pointer-events: none;
}
.tree-canvas .node-text.label-bold { font-weight: 700; }
.tree-canvas .node-text.small { font-size: 11px; fill: var(--text-soft); font-family: var(--font-mono); }
.tree-canvas .edge {
  stroke: var(--fgz-blau);
  stroke-width: 2;
  fill: none;
}
.tree-canvas .edge-label {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  fill: var(--fgz-nachtblau);
  text-anchor: middle;
}
.tree-canvas .edge-label-bg {
  fill: #FFFFFF;
  stroke: var(--border);
}
.tree-canvas .node-delete {
  cursor: pointer;
  fill: var(--fgz-aprikose);
  opacity: 0;
  transition: opacity 0.12s;
}
.tree-canvas .node-group:hover .node-delete { opacity: 1; }
.tree-canvas .node-delete-text {
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 900;
  fill: #FFFFFF;
  text-anchor: middle;
  pointer-events: none;
}

/* ---------- Predict Panel ---------- */
.predict-panel {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 16px 18px;
}
.predict-row {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 10px;
  align-items: center;
  margin-bottom: 10px;
}
.predict-row label {
  font-weight: 700;
  font-size: 14px;
  color: var(--fgz-nachtblau);
}
.predict-row input, .predict-row select {
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-family: var(--font-sans);
  font-size: 14px;
  background: #FFFFFF;
}
.predict-row input:focus, .predict-row select:focus {
  outline: none;
  border-color: var(--fgz-blau);
  box-shadow: 0 0 0 3px var(--fgz-blau-pastell);
}
.predict-result {
  margin-top: 14px;
  padding: 12px 16px;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 700;
  border-left: 4px solid;
}
.predict-result.yes { background: var(--fgz-pistazie-pastell); border-color: var(--fgz-pistazie); color: #3d5800; }
.predict-result.no  { background: var(--fgz-aprikose-pastell); border-color: var(--fgz-aprikose); color: #a13b1c; }
.predict-result.unknown { background: var(--fgz-honig-pastell); border-color: var(--fgz-honig); color: #7a4400; }
.predict-result .path {
  display: block;
  font-weight: 400;
  margin-top: 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-soft);
}

/* ---------- Mini-Tree (within theory) ---------- */
.mini-tree {
  display: inline-block;
  margin: 8px 12px 8px 0;
  padding: 8px 12px;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  text-align: center;
  vertical-align: top;
  min-width: 160px;
}
.mini-tree .root {
  display: inline-block;
  padding: 6px 12px;
  background: var(--fgz-blau-pastell);
  border: 1px solid var(--fgz-blau);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--fgz-nachtblau);
  margin-bottom: 6px;
}
.mini-tree .branches { display: flex; justify-content: space-around; gap: 8px; }
.mini-tree .branch {
  font-size: 11px;
  color: var(--text-muted);
  font-family: var(--font-mono);
}
.mini-tree .leaf {
  display: block;
  padding: 4px 8px;
  background: var(--fgz-pistazie-pastell);
  border: 1px solid var(--fgz-pistazie);
  border-radius: var(--radius);
  margin-top: 4px;
  font-family: var(--font-sans);
  font-size: 12px;
  color: #3d5800;
}

/* ---------- Responsive ---------- */
@media (max-width: 1100px) {
  .main-content { padding: 24px 28px; }
}
@media (max-width: 900px) {
  .sidebar { width: 240px; }
  html, body { overflow: auto; }
  .app-body { overflow: visible; }
  .predict-row { grid-template-columns: 1fr; }
  .predict-row label { margin-bottom: -4px; }
}
@media (max-width: 640px) {
  .app-header { flex-direction: column; align-items: flex-start; gap: 10px; padding: 14px 18px; }
  .sidebar { width: 100%; height: auto; border-right: none; border-bottom: 1px solid var(--border); }
  .app-body { flex-direction: column; }
  .main-content { padding: 18px; }
  .brand-logo { height: 36px; }
  #theory-content h1 { font-size: 28px; }
  #theory-content h2 { font-size: 22px; }
}