/* =============================================================================
   SengakujiWorks Design System v3.0 — "Bento Glow"
   -----------------------------------------------------------------------------
   Modern Tech Aesthetic 2026.
   - Dunkles Theme mit Glow-Effekten
   - Bento-Grid Layouts (asymmetrische Kacheln)
   - Sanfte Animationen, Hover-Tiefe
   - Behaelt alle Legacy-Klassennamen (sidebar, term-item, level-tabs, etc.)
     damit die 1.578 Glossar-Seiten + 18 Lernpfade automatisch profitieren.
   - Mobile-first, keine externen Fonts/CDNs.
   ============================================================================= */

:root {
  /* --- Basis Farben --- */
  --bg-color: #0a0b10;
  --bg-secondary: #11131a;
  --bg-ink: #0a0b10;
  --bg-ink-soft: #14161f;
  --bg-card: #151823;
  --bg-card-hover: #1c2030;
  --bg-elevated: #1a1d2a;
  --text-main: #e6edf3;
  --text-muted: #8b95a7;
  --text-dim: #5a6378;
  --text-highlight: #ffffff;
  --text-inverse: #e6edf3;

  /* --- Akzent: Kuehles Blau mit Glow --- */
  --primary: #5b8def;
  --primary-hover: #7aa3f7;
  --primary-soft: rgba(91, 141, 239, 0.12);
  --primary-glow: rgba(91, 141, 239, 0.4);
  --primary-glow-soft: rgba(91, 141, 239, 0.15);

  /* --- Sekundaere Akzente --- */
  --accent-purple: #a371f7;
  --accent-purple-glow: rgba(163, 113, 247, 0.3);
  --accent-green: #3fb950;
  --accent-green-glow: rgba(63, 185, 80, 0.3);
  --accent-amber: #d29922;
  --accent-amber-glow: rgba(210, 153, 34, 0.3);
  --accent-pink: #f778ba;
  --accent-pink-glow: rgba(247, 120, 186, 0.3);

  --border-color: #252a3a;
  --border-light: #323848;
  --border-glow: rgba(91, 141, 239, 0.4);

  /* --- Difficulty --- */
  --diff-s1: #3fb950;
  --diff-s2: #5b8def;
  --diff-s3: #d29922;
  --diff-s4: #f85149;
  --diff-s5: #a371f7;

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: "SFMono-Regular", ui-monospace, Consolas, "Liberation Mono", "Courier New", monospace;

  --radius: 16px;
  --radius-sm: 10px;
  --radius-xs: 6px;
  --radius-pill: 999px;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 24px var(--primary-glow-soft);
  --transition: 200ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
}

* { box-sizing: border-box; }
*::selection { background: var(--primary-glow); color: #fff; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg-color);
  color: var(--text-main);
  font-family: var(--font-sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  letter-spacing: -0.01em;
  overflow-x: hidden;
}

/* Ambient Background Glow */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(ellipse 80% 50% at 50% -10%, var(--primary-glow-soft), transparent 70%),
    radial-gradient(ellipse 60% 40% at 90% 100%, var(--accent-purple-glow), transparent 60%),
    radial-gradient(ellipse 60% 40% at 10% 90%, var(--accent-pink-glow), transparent 60%);
  pointer-events: none;
  opacity: 0.6;
}
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(91, 141, 239, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(91, 141, 239, 0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, black 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, black 30%, transparent 80%);
  pointer-events: none;
}

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

button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
  border-radius: var(--radius-xs);
}

/* =============================================================================
   APP LAYOUT
   ============================================================================= */
.app-layout { display: flex; min-height: 100vh; }

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--primary);
  color: #fff;
  padding: 0.75rem 1.25rem;
  border-radius: 0 0 var(--radius-sm) 0;
  z-index: 1000;
  font-weight: 600;
}
.skip-link:focus { left: 0; }

/* --- SIDEBAR (Glassmorphism) --- */
.sidebar {
  position: fixed;
  top: 0; left: 0; bottom: 0;
  width: 264px;
  background: rgba(10, 11, 16, 0.85);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-right: 1px solid var(--border-color);
  padding: 1.75rem 1.25rem;
  overflow-y: auto;
  z-index: 100;
}
.sidebar::-webkit-scrollbar { width: 6px; }
.sidebar::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 3px; }

.brand { display: flex; align-items: center; gap: 0.75rem; margin-bottom: 1.75rem; color: var(--text-inverse); }
.brand:hover { color: var(--text-inverse); }
.brand-mark {
  display: grid;
  width: 2.5rem; height: 2.5rem;
  place-items: center;
  background: linear-gradient(135deg, var(--primary), var(--accent-purple));
  color: #fff;
  font-weight: 800;
  font-size: 1.1rem;
  border-radius: 12px;
  flex-shrink: 0;
  box-shadow: 0 4px 16px var(--primary-glow);
}
.brand strong { font-size: 0.95rem; display: block; }
.brand small { color: var(--text-muted); font-size: 0.72rem; }

/* --- Preview Status Card --- */
.preview-status-card {
  display: block;
  padding: 1rem 1.1rem;
  margin-bottom: 1.75rem;
  background: linear-gradient(135deg, var(--accent-amber-glow), transparent);
  border: 1px solid rgba(210, 153, 34, 0.25);
  border-radius: var(--radius-sm);
}
.preview-status-card span { display: block; font-size: 0.68rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--accent-amber); font-weight: 700; }
.preview-status-card strong { display: block; margin: 0.25rem 0 0.5rem; color: var(--text-highlight); font-size: 0.92rem; }
.preview-status-card p { margin: 0; font-size: 0.76rem; color: var(--text-muted); line-height: 1.5; }

/* --- Suche --- */
.search-container { margin-bottom: 1.5rem; }
.search-label { display: block; margin-bottom: 0.4rem; color: var(--text-muted); font-size: 0.68rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em; }

#search {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--bg-ink-soft);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  font-size: 0.9rem;
  font-family: var(--font-sans);
  transition: all var(--transition);
}
#search::placeholder { color: var(--text-dim); }
#search:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-glow-soft), 0 0 20px var(--primary-glow-soft);
}

.search-status { margin: 0.5rem 0 0; font-size: 0.76rem; color: var(--text-muted); }
.search-status[data-search-tone="error"] { color: var(--diff-s4); }
.search-status[data-search-tone="loading"] { color: var(--diff-s2); }

/* --- Nav Links --- */
.nav-links { display: flex; flex-direction: column; gap: 0.2rem; }
.nav-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.7rem 0.9rem;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  transition: all var(--transition);
  position: relative;
}
.nav-item:hover { background: var(--primary-soft); color: var(--text-highlight); transform: translateX(2px); }
.nav-item[aria-current="page"],
.nav-item.active {
  background: var(--primary-soft);
  color: var(--primary);
}
.nav-item[aria-current="page"]::before,
.nav-item.active::before {
  content: "";
  position: absolute;
  left: 0; top: 25%; bottom: 25%;
  width: 3px;
  background: var(--primary);
  border-radius: 0 2px 2px 0;
  box-shadow: 0 0 8px var(--primary-glow);
}
.nav-icon {
  display: grid;
  width: 1.5rem; height: 1.5rem;
  place-items: center;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xs);
  color: var(--primary);
  font-size: 0.75rem;
  font-weight: 700;
  flex-shrink: 0;
}

/* --- Sidebar Footer --- */
.sidebar-footer { margin-top: 1.75rem; padding-top: 1.5rem; border-top: 1px solid var(--border-color); }
.settings-toggle {
  display: flex; align-items: center; gap: 0.75rem;
  width: 100%; padding: 0.7rem 0.9rem;
  background: transparent;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-muted); font-size: 0.9rem; font-weight: 500;
  cursor: pointer; transition: all var(--transition);
}
.settings-toggle:hover, .settings-toggle[aria-expanded="true"] {
  background: var(--primary-soft); border-color: var(--primary); color: var(--text-highlight);
}
.settings-panel {
  margin-top: 0.75rem; padding: 1rem;
  background: var(--bg-ink-soft);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
}
.settings-panel[hidden] { display: none; }
.settings-panel-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 0.75rem; }
.settings-panel-head strong { color: var(--text-highlight); }
.settings-panel-head button { background: transparent; border: none; color: var(--text-muted); font-size: 1.2rem; cursor: pointer; line-height: 1; }
.settings-panel-head button:hover { color: var(--text-highlight); }
.settings-status, .settings-credit-row, .settings-language {
  display: flex; justify-content: space-between; align-items: center;
  padding: 0.5rem 0; border-bottom: 1px solid var(--border-color); font-size: 0.85rem;
}
.settings-status span, .settings-credit-row span, .settings-language span { color: var(--text-muted); }
.settings-status strong, .settings-credit-row strong { color: var(--text-highlight); }
.settings-language { border-bottom: none; flex-wrap: wrap; gap: 0.5rem; }
.settings-language select {
  width: 100%; padding: 0.45rem 0.55rem;
  background: var(--bg-ink); border: 1px solid var(--border-color);
  border-radius: var(--radius-xs); color: var(--text-main); font-size: 0.85rem;
}
.settings-actions { display: flex; flex-direction: column; gap: 0.5rem; margin-top: 0.75rem; }
.settings-actions a, .settings-actions button {
  padding: 0.55rem 0.8rem; border-radius: var(--radius-xs); font-size: 0.85rem; font-weight: 600; text-align: center; transition: all var(--transition);
}
.settings-actions a { background: var(--primary); color: #fff; }
.settings-actions a:hover { background: var(--primary-hover); color: #fff; }
.settings-actions button { background: transparent; border: 1px solid var(--border-color); color: var(--text-muted); cursor: pointer; }
.settings-actions button:hover { border-color: var(--diff-s4); color: var(--diff-s4); }
.settings-profile-card {
  display: grid; grid-template-columns: 1fr 1fr; gap: 0.5rem;
  padding: 0.75rem 0; border-bottom: 1px solid var(--border-color); margin-bottom: 0.75rem;
}
.settings-profile-card > div { font-size: 0.78rem; }
.settings-profile-card span { color: var(--text-muted); display: block; }
.settings-profile-card strong { color: var(--text-highlight); }
.sidebar-version { display: block; margin-top: 1rem; font-size: 0.7rem; color: var(--text-dim); text-align: center; }
.sidebar-legal-links { display: flex; gap: 0.75rem; margin-top: 0.75rem; flex-wrap: wrap; font-size: 0.75rem; }
.sidebar-legal-links a { color: var(--text-muted); }
.sidebar-legal-links a:hover { color: var(--primary); }

/* =============================================================================
   MAIN CONTENT
   ============================================================================= */
.main-content { display: flex; flex: 1; flex-direction: column; margin-left: 264px; min-width: 0; }

.top-header {
  padding: 1rem 2.25rem;
  border-bottom: 1px solid var(--border-color);
  background: rgba(10, 11, 16, 0.7);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  position: sticky; top: 0; z-index: 50;
}
.breadcrumbs { color: var(--text-muted); font-family: var(--font-mono); font-size: 0.76rem; }
.breadcrumbs a { color: inherit; }
.breadcrumbs a:hover { color: var(--primary); }

.content-container { width: min(1200px, 100%); margin: 0 auto; padding: 2.5rem 2.25rem 4rem; }

/* --- Page Intro --- */
.page-intro { margin-bottom: 2.5rem; }
.eyebrow, .panel-kicker {
  display: block; margin: 0 0 0.5rem;
  color: var(--primary); font-size: 0.72rem; font-weight: 800;
  letter-spacing: 0.12em; text-transform: uppercase;
}
.term-title, h1.term-title {
  margin: 0 0 0.75rem;
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 800;
  color: var(--text-highlight);
  letter-spacing: -0.03em;
  line-height: 1.1;
}
.intro-text { color: var(--text-muted); font-size: 1.1rem; max-width: 68ch; }

/* --- Trust Strip / Stats --- */
.preview-trust-strip { display: flex; flex-wrap: wrap; gap: 0.5rem; margin: 1.25rem 0 0; }
.preview-trust-strip span {
  display: inline-flex; align-items: center;
  padding: 0.35rem 0.85rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-pill);
  font-size: 0.78rem; color: var(--text-muted); font-weight: 500;
}
.preview-trust-strip span:first-child {
  background: var(--primary-soft);
  border-color: var(--border-glow);
  color: var(--primary);
}

/* --- Action Row / Buttons --- */
.action-row { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 1.75rem; }
.button-primary, .button-secondary, .step-action {
  display: inline-flex; align-items: center; gap: 0.4rem;
  padding: 0.7rem 1.4rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem; font-weight: 600;
  cursor: pointer; border: 1px solid transparent;
  transition: all var(--transition);
}
.button-primary {
  background: var(--primary); color: #fff;
  box-shadow: 0 4px 16px var(--primary-glow-soft);
}
.button-primary:hover { background: var(--primary-hover); color: #fff; transform: translateY(-1px); box-shadow: 0 6px 24px var(--primary-glow); }
.button-secondary, .step-action {
  background: var(--bg-elevated); color: var(--text-main); border-color: var(--border-color);
}
.button-secondary:hover, .step-action:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-soft); }

/* =============================================================================
   BENTO GRID (Hauptlayout-Komponente)
   ============================================================================= */
.bento-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  margin: 2rem 0;
}
.bento-card {
  position: relative;
  padding: 1.75rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  background: var(--bg-card);
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: all var(--transition);
  text-decoration: none;
  color: var(--text-main);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.bento-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--primary-glow), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}
.bento-card::after {
  content: "";
  position: absolute;
  top: -50%; right: -50%;
  width: 200px; height: 200px;
  background: radial-gradient(circle, var(--primary-glow-soft), transparent 70%);
  opacity: 0;
  transition: opacity var(--transition-slow);
  pointer-events: none;
}
.bento-card:hover {
  border-color: var(--border-glow);
  background: var(--bg-card-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg), 0 0 32px var(--primary-glow-soft);
}
.bento-card:hover::before { opacity: 1; }
.bento-card:hover::after { opacity: 1; }

.bento-icon {
  display: grid;
  width: 3rem; height: 3rem;
  place-items: center;
  background: linear-gradient(135deg, var(--primary-soft), transparent);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-sm);
  color: var(--primary);
  font-size: 1.4rem;
  flex-shrink: 0;
}
.bento-card:hover .bento-icon {
  box-shadow: 0 0 20px var(--primary-glow-soft);
}
.bento-title {
  font-size: 1.15rem; font-weight: 700; color: var(--text-highlight);
  letter-spacing: -0.02em;
}
.bento-desc {
  color: var(--text-muted); font-size: 0.9rem; line-height: 1.5; margin: 0;
}
.bento-meta {
  display: flex; gap: 0.5rem; margin-top: auto; padding-top: 0.75rem;
  border-top: 1px solid var(--border-color); flex-wrap: wrap;
}
.bento-meta span {
  font-size: 0.72rem; color: var(--text-dim); font-weight: 600;
  padding: 0.15rem 0.5rem; background: var(--bg-ink);
  border-radius: var(--radius-xs);
}
.bento-badge {
  position: absolute; top: 1rem; right: 1rem;
  font-size: 0.65rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em;
  padding: 0.2rem 0.6rem; border-radius: var(--radius-pill);
  z-index: 2;
}
.bento-badge.live { background: var(--accent-green-glow); color: var(--accent-green); border: 1px solid rgba(63,185,80,0.3); }
.bento-badge.planned { background: var(--accent-amber-glow); color: var(--accent-amber); border: 1px solid rgba(210,153,34,0.3); }
.bento-badge.preview { background: var(--primary-soft); color: var(--primary); border: 1px solid var(--border-glow); }

/* Bento-Card Variants (Groessen) */
.bento-card.col-span-2 { grid-column: span 2; }
.bento-card.col-span-3 { grid-column: span 3; }
.bento-card.row-span-2 { grid-row: span 2; }
.bento-card.featured {
  background: linear-gradient(135deg, var(--bg-card), var(--bg-elevated));
  border-color: var(--border-glow);
}

/* =============================================================================
   PUBLIC HOME PAGE (zentrale Startseite - Bento Hero)
   ============================================================================= */
body.public-home-page { background: var(--bg-color); }
.public-home { max-width: 1200px; margin: 0 auto; padding: 0 1.5rem 4rem; }

.public-nav {
  display: flex; justify-content: space-between; align-items: center;
  padding: 1.5rem 0; border-bottom: 1px solid var(--border-color);
}
.public-brand { display: flex; align-items: center; gap: 0.75rem; color: var(--text-highlight); font-weight: 700; }
.public-brand:hover { color: var(--text-highlight); }
.public-nav > div { display: flex; gap: 1.25rem; align-items: center; }
.public-nav a { color: var(--text-muted); font-size: 0.9rem; font-weight: 500; transition: all var(--transition); }
.public-nav a:hover { color: var(--primary); }
.public-login-link { padding: 0.4rem 0.9rem; border: 1px solid var(--border-color); border-radius: var(--radius-pill); }
.public-login-link:hover { border-color: var(--primary); color: var(--primary); }

/* --- Hero Section (Bento Style) --- */
.hero-bento {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 1rem;
  padding: 3rem 0 2rem;
  align-items: stretch;
}
.hero-main {
  grid-column: span 2;
  padding: 3rem 2.5rem;
  background:
    radial-gradient(ellipse at top right, var(--primary-glow-soft), transparent 50%),
    linear-gradient(135deg, var(--bg-card), var(--bg-elevated));
  border: 1px solid var(--border-glow);
  border-radius: var(--radius);
  position: relative;
  overflow: hidden;
}
.hero-main::before {
  content: "";
  position: absolute;
  top: -100px; right: -100px;
  width: 300px; height: 300px;
  background: radial-gradient(circle, var(--primary-glow), transparent 70%);
  opacity: 0.4;
  animation: pulse 4s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 0.4; }
  50% { transform: scale(1.1); opacity: 0.6; }
}
.hero-main h1 {
  margin: 1rem 0 1rem;
  font-size: clamp(2rem, 4.5vw, 3.2rem);
  font-weight: 800;
  color: var(--text-highlight);
  letter-spacing: -0.03em;
  line-height: 1.05;
  position: relative;
  z-index: 1;
}
.hero-main p {
  margin: 0 0 1.5rem;
  color: var(--text-muted);
  font-size: 1.15rem;
  max-width: 52ch;
  position: relative;
  z-index: 1;
}
.hero-search-wrap {
  position: relative;
  max-width: 480px;
  z-index: 1;
}
.hero-search-wrap input {
  width: 100%;
  padding: 1rem 1.25rem;
  background: var(--bg-ink);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  font-size: 1rem;
  font-family: var(--font-sans);
  transition: all var(--transition);
}
.hero-search-wrap input::placeholder { color: var(--text-dim); }
.hero-search-wrap input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 4px var(--primary-glow-soft), 0 0 32px var(--primary-glow-soft);
}

.hero-side {
  display: flex; flex-direction: column; gap: 1rem;
}
.hero-side .bento-card { flex: 1; }

/* =============================================================================
   ROUTE CARDS (Startseite Bereiche)
   ============================================================================= */
.route-card {
  display: flex; flex-direction: column; gap: 0.35rem;
  padding: 1.75rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  background: var(--bg-card);
  box-shadow: var(--shadow);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.route-card::before {
  content: "";
  position: absolute;
  top: -1px; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}
.route-card:hover { border-color: var(--border-glow); transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.route-card:hover::before { opacity: 1; }
.route-card span:first-child {
  font-size: 0.68rem; text-transform: uppercase; letter-spacing: 0.1em;
  color: var(--text-dim); font-weight: 700;
}
.route-card strong { font-size: 1.4rem; color: var(--text-highlight); letter-spacing: -0.02em; }
.route-card p { margin: 0.35rem 0; color: var(--text-muted); font-size: 0.92rem; }
.route-card small { color: var(--text-dim); font-family: var(--font-mono); font-size: 0.74rem; }

/* =============================================================================
   LERNPFADE
   ============================================================================= */
/* Pfad-Such-Panel */
.path-search-panel {
  padding: 1.75rem;
  margin-bottom: 2rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  position: relative;
  overflow: hidden;
}
.path-search-panel::before {
  content: "";
  position: absolute;
  top: -50%; left: -20%;
  width: 60%; height: 200%;
  background: radial-gradient(ellipse, var(--primary-glow-soft), transparent 70%);
  opacity: 0.5;
  pointer-events: none;
}
.path-search-input-wrap { position: relative; margin-bottom: 1.25rem; }
.path-search-input-wrap input {
  width: 100%;
  padding: 1rem 1.25rem;
  background: var(--bg-ink);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  font-size: 1.05rem;
  font-family: var(--font-sans);
  transition: all var(--transition);
}
.path-search-input-wrap input::placeholder { color: var(--text-dim); }
.path-search-input-wrap input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 4px var(--primary-glow-soft), 0 0 24px var(--primary-glow-soft);
}
.path-search-count {
  display: block; margin-top: 0.6rem;
  font-size: 0.8rem; color: var(--text-muted); font-weight: 600;
}
.path-filter-chips { display: flex; flex-wrap: wrap; gap: 0.5rem; position: relative; }
.path-chip {
  padding: 0.5rem 1.1rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-pill);
  color: var(--text-muted);
  font-size: 0.82rem; font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
}
.path-chip:hover { border-color: var(--primary); color: var(--text-highlight); transform: translateY(-1px); }
.path-chip.active {
  background: var(--primary); border-color: var(--primary); color: #fff;
  box-shadow: 0 4px 16px var(--primary-glow-soft);
}

/* Pfad-Karten */
.path-index-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1rem;
  margin: 1.5rem 0;
}
.path-group { margin-bottom: 2.5rem; }
.path-group h3 {
  margin: 1.5rem 0 0.75rem;
  font-size: 0.9rem; color: var(--primary); font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.08em;
}

.path-card {
  display: flex; flex-direction: column; gap: 0.85rem;
  padding: 1.75rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  background: var(--bg-card);
  box-shadow: var(--shadow);
  color: var(--text-main);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.path-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}
.path-card:hover {
  border-color: var(--border-glow);
  background: var(--bg-card-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg), 0 0 24px var(--primary-glow-soft);
}
.path-card:hover::before { opacity: 1; }

.path-card-head { display: flex; align-items: center; gap: 1rem; }
.path-initial {
  display: grid; width: 3rem; height: 3rem;
  place-items: center;
  background: linear-gradient(135deg, var(--primary-soft), transparent);
  border: 1px solid var(--border-glow);
  color: var(--primary);
  font-size: 1.3rem; font-weight: 800;
  border-radius: 12px;
  flex-shrink: 0;
  transition: box-shadow var(--transition);
}
.path-card:hover .path-initial { box-shadow: 0 0 20px var(--primary-glow-soft); }
.path-card-head .panel-kicker { margin: 0 0 0.15rem; font-size: 0.62rem; }
.path-title {
  margin: 0; font-size: 1.2rem; color: var(--text-highlight);
  font-weight: 700; line-height: 1.2; letter-spacing: -0.02em;
}
.path-desc { margin: 0; color: var(--text-muted); font-size: 0.92rem; line-height: 1.5; }
.path-meta {
  display: flex; justify-content: space-between; align-items: center;
  margin-top: auto; padding-top: 0.85rem;
  border-top: 1px solid var(--border-color);
}
.path-meta span { font-size: 0.8rem; color: var(--text-muted); font-weight: 600; }
.path-start-pill {
  display: inline-flex; align-items: center;
  padding: 0.35rem 0.95rem;
  background: var(--primary); color: #fff !important;
  border-radius: var(--radius-pill);
  font-size: 0.78rem; font-weight: 700;
}
.path-no-results {
  padding: 2rem; text-align: center; color: var(--text-muted);
  background: var(--bg-card); border: 1px dashed var(--border-color);
  border-radius: var(--radius);
}

/* =============================================================================
   GLOSSAR
   ============================================================================= */
.glossary-filter-panel {
  padding: 1.5rem;
  margin-bottom: 1.75rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
}
.glossary-filter-panel strong { color: var(--text-highlight); display: block; margin: 0.25rem 0 0.5rem; }
.glossary-filter-panel p { margin: 0; font-size: 0.85rem; color: var(--text-muted); }
.glossary-filter-controls { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 1rem; }
.glossary-filter-controls label {
  display: flex; flex-direction: column; gap: 0.35rem;
  font-size: 0.7rem; color: var(--text-muted); font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.08em;
}
.glossary-filter-controls select,
.glossary-filter-controls input {
  padding: 0.6rem 0.85rem;
  background: var(--bg-ink);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  font-size: 0.9rem;
  font-family: var(--font-sans);
  text-transform: none; letter-spacing: normal;
}
.glossary-filter-controls select:focus,
.glossary-filter-controls input:focus {
  outline: none; border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-glow-soft);
}
.glossary-filter-status { margin: 0.75rem 0 0; font-size: 0.82rem; color: var(--text-muted); }

.glossary-groups { display: flex; flex-direction: column; gap: 2rem; }
.glossary-section { display: flex; flex-direction: column; gap: 1rem; }
.path-section-heading { padding-bottom: 0.85rem; border-bottom: 1px solid var(--border-color); }
.path-section-heading h2 { margin: 0.25rem 0 0.35rem; font-size: 1.4rem; color: var(--text-highlight); letter-spacing: -0.02em; }
.path-section-heading p { margin: 0; font-size: 0.92rem; color: var(--text-muted); }

/* Category Details (aufklappbar) */
.category-details {
  padding: 0; overflow: hidden;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  background: var(--bg-card);
  transition: border-color var(--transition);
}
.category-details[open] { border-color: var(--border-glow); }
.category-summary {
  display: flex; justify-content: space-between; align-items: center;
  padding: 1.1rem 1.4rem; cursor: pointer; list-style: none;
  font-size: 0.95rem;
  transition: background var(--transition);
}
.category-summary::-webkit-details-marker, .category-summary::marker { display: none; }
.category-summary::before {
  content: "▸";
  display: inline-block; margin-right: 0.6rem;
  color: var(--primary); transition: transform var(--transition);
}
.category-details[open] .category-summary::before { transform: rotate(90deg); }
.category-summary:hover { background: var(--bg-card-hover); }
.category-summary strong { color: var(--text-highlight); display: block; }
.category-summary small { color: var(--text-muted); display: block; font-size: 0.8rem; margin-top: 0.2rem; }
.category-summary em { color: var(--primary); font-style: normal; font-size: 0.8rem; font-weight: 600; }

/* Term Items (Glossar-Liste) */
.term-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 0.5rem;
  padding: 0.85rem 1.4rem 1.4rem;
}
.term-item {
  display: flex; flex-direction: column; gap: 0.5rem;
  padding: 0.85rem 1rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background: var(--bg-ink-soft);
  transition: all var(--transition);
}
.term-item:hover {
  border-color: var(--border-glow);
  background: var(--bg-card-hover);
  transform: translateY(-2px);
  box-shadow: 0 0 16px var(--primary-glow-soft);
}
.term-header { color: var(--text-highlight); font-weight: 600; font-size: 0.95rem; }
.term-badges { display: flex; flex-wrap: wrap; gap: 0.3rem; }
.badge-pill {
  display: inline-flex;
  padding: 0.15rem 0.55rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-pill);
  font-size: 0.7rem; color: var(--text-muted); font-weight: 600;
}
.badge-pill.difficulty-S1 { color: var(--diff-s1); border-color: rgba(63,185,80,0.3); background: rgba(63,185,80,0.1); }
.badge-pill.difficulty-S2 { color: var(--diff-s2); border-color: rgba(91,141,239,0.3); background: rgba(91,141,239,0.1); }
.badge-pill.difficulty-S3 { color: var(--diff-s3); border-color: rgba(210,153,34,0.3); background: rgba(210,153,34,0.1); }
.badge-pill.difficulty-S4 { color: var(--diff-s4); border-color: rgba(248,81,73,0.3); background: rgba(248,81,73,0.1); }
.badge-pill.difficulty-S5 { color: var(--diff-s5); border-color: rgba(163,113,247,0.3); background: rgba(163,113,247,0.1); }

/* =============================================================================
   GLOSSAR TERM DETAIL (Begriffsseiten)
   ============================================================================= */
.term-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 2rem;
  align-items: start;
}
.term-main { min-width: 0; }
.back-link {
  display: inline-flex; align-items: center; gap: 0.4rem;
  margin-bottom: 1rem;
  color: var(--text-muted); font-size: 0.85rem;
}
.back-link:hover { color: var(--primary); }

.term-heading { margin-bottom: 1.5rem; }
.meta-tags { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-top: 0.75rem; }
.difficulty-badge {
  display: inline-flex; align-items: center;
  padding: 0.25rem 0.65rem;
  background: var(--bg-ink);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-pill);
  font-size: 0.72rem; color: var(--text-muted); font-weight: 600;
}
.difficulty-S1 { color: var(--diff-s1) !important; border-color: rgba(63,185,80,0.3) !important; background: rgba(63,185,80,0.1) !important; }
.difficulty-S2 { color: var(--diff-s2) !important; border-color: rgba(91,141,239,0.3) !important; background: rgba(91,141,239,0.1) !important; }
.difficulty-S3 { color: var(--diff-s3) !important; border-color: rgba(210,153,34,0.3) !important; background: rgba(210,153,34,0.1) !important; }
.difficulty-S4 { color: var(--diff-s4) !important; border-color: rgba(248,81,73,0.3) !important; background: rgba(248,81,73,0.1) !important; }
.difficulty-S5 { color: var(--diff-s5) !important; border-color: rgba(163,113,247,0.3) !important; background: rgba(163,113,247,0.1) !important; }

.term-insight-strip {
  display: flex; flex-wrap: wrap; gap: 0.75rem;
  margin-top: 1rem; padding: 0.75rem 1rem;
  background: var(--bg-ink);
  border-radius: var(--radius-sm);
  font-size: 0.78rem; color: var(--text-muted);
}
.term-insight-strip span { display: inline-flex; align-items: center; gap: 0.3rem; }

.term-why-panel { padding: 1.5rem; margin-bottom: 1.5rem; }
.term-why-panel p { margin: 0.35rem 0 0; color: var(--text-muted); }

/* Level Tabs */
.level-tabs-container {
  display: flex; gap: 0.25rem;
  margin-bottom: 0;
  border-bottom: 1px solid var(--border-color);
}
.tab-btn {
  flex: 1;
  padding: 0.95rem 1rem;
  background: transparent; border: none;
  border-bottom: 2px solid transparent;
  color: var(--text-muted);
  font-size: 0.92rem; font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
}
.tab-btn:hover { color: var(--text-highlight); background: rgba(91,141,239,0.05); }
.tab-btn.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
  background: var(--primary-soft);
}
.level-panel {
  border-top: none;
  border-top-left-radius: 0; border-top-right-radius: 0;
  padding: 1.75rem;
  margin-bottom: 1.5rem;
}
.level-section { animation: fadeIn 0.3s ease; }
.level-section[hidden] { display: none; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: translateY(0); } }

/* Content Panels */
.content-panel { padding: 1.75rem; margin-bottom: 1.5rem; }
.content-panel h2 {
  margin: 0 0 1rem;
  font-size: 1.2rem; font-weight: 700; color: var(--text-highlight); letter-spacing: -0.02em;
}
.content-panel h3 {
  margin: 1.5rem 0 0.5rem;
  font-size: 1.05rem; font-weight: 700; color: var(--text-highlight);
}
.content-panel p { margin: 0.5rem 0; color: var(--text-main); }
.content-panel ul, .content-panel ol { margin: 0.5rem 0; padding-left: 1.5rem; }
.content-panel li { margin: 0.35rem 0; color: var(--text-main); }
.content-panel code {
  background: var(--primary-soft); color: var(--primary);
  padding: 0.15rem 0.45rem; border-radius: var(--radius-xs);
  font-family: var(--font-mono); font-size: 0.85em;
}
.content-panel pre {
  background: var(--bg-ink);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 1rem;
  overflow-x: auto; margin: 1rem 0;
}
.content-panel pre code { background: transparent; color: var(--text-main); padding: 0; }
.content-panel blockquote {
  margin: 1rem 0; padding: 0.85rem 1.1rem;
  border-left: 3px solid var(--primary);
  background: var(--primary-soft);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--text-main);
}
.content-panel hr { border: none; border-top: 1px solid var(--border-color); margin: 1.75rem 0; }
.content-panel a { color: var(--primary); text-decoration: underline; text-decoration-color: var(--primary-glow-soft); }
.content-panel a:hover { text-decoration-color: var(--primary); }

/* Side Section */
.side-section { padding: 1.5rem; margin-bottom: 1.5rem; }
.side-section h2, .side-section h3 {
  margin: 0 0 0.85rem;
  font-size: 0.92rem; text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--text-muted);
}
.side-section ul { list-style: none; padding: 0; margin: 0; }
.side-section li { padding: 0.5rem 0; border-bottom: 1px solid var(--border-color); font-size: 0.88rem; }
.side-section li:last-child { border-bottom: none; }
.side-section a { color: var(--text-main); }
.side-section a:hover { color: var(--primary); }

.related-term {
  display: inline-flex; align-items: center;
  padding: 0.35rem 0.8rem; margin: 0.2rem;
  background: var(--bg-ink); border: 1px solid var(--border-color);
  border-radius: var(--radius-pill);
  font-size: 0.82rem; color: var(--text-muted);
  transition: all var(--transition);
}
.related-term:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-soft); }

.source-list { list-style: none; padding: 0; margin: 0; }
.source-list li {
  padding: 0.65rem 0;
  border-bottom: 1px solid var(--border-color);
  font-size: 0.85rem; color: var(--text-muted);
}
.source-list li:last-child { border-bottom: none; }
.source-list strong { color: var(--text-main); display: block; margin-bottom: 0.2rem; }

/* Quick Check */
.quick-check { margin-top: 1.5rem; }
.quick-check h3 { color: var(--text-highlight); margin-bottom: 0.5rem; }
.quick-check label {
  display: flex; align-items: flex-start; gap: 0.6rem;
  padding: 0.65rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  margin: 0.5rem 0; cursor: pointer;
  transition: all var(--transition);
}
.quick-check label:hover { border-color: var(--primary); background: var(--primary-soft); }
.quick-check input[type="radio"], .quick-check input[type="checkbox"] { margin-top: 0.2rem; accent-color: var(--primary); }

/* =============================================================================
   PUBLIC HOME weitere Sektionen
   ============================================================================= */
.public-hero { display: grid; grid-template-columns: 1.2fr 1fr; gap: 3rem; align-items: center; padding: 4rem 0 3rem; }
.public-hero-copy h1 {
  margin: 0.5rem 0 1rem;
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800; color: var(--text-highlight);
  letter-spacing: -0.03em; line-height: 1.1;
}
.public-hero-copy p { margin: 0; color: var(--text-muted); font-size: 1.1rem; max-width: 56ch; }
.public-action-row { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 2rem; }
.public-route-panel { display: grid; grid-template-columns: 1fr; gap: 1rem; }
.public-domain-map { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1rem; margin: 3rem 0; }
.public-domain-map article {
  padding: 1.5rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  background: var(--bg-card);
  transition: all var(--transition);
}
.public-domain-map article:hover { border-color: var(--border-glow); transform: translateY(-2px); }
.public-domain-map span:first-child { display: block; font-family: var(--font-mono); color: var(--primary); font-size: 0.85rem; margin-bottom: 0.5rem; }
.public-domain-map strong { display: block; color: var(--text-highlight); font-size: 0.95rem; margin-bottom: 0.35rem; word-break: break-all; }
.public-domain-map p { margin: 0; color: var(--text-muted); font-size: 0.85rem; }
.public-intent-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 1rem; margin-bottom: 3rem; }
.public-intent-grid > a {
  display: flex; flex-direction: column; gap: 0.35rem;
  padding: 1.5rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  background: var(--bg-card);
  transition: all var(--transition);
}
.public-intent-grid > a:hover { border-color: var(--border-glow); transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.public-intent-grid span:first-child { font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--text-dim); font-weight: 700; }
.public-intent-grid strong { color: var(--text-highlight); font-size: 1.1rem; }
.public-intent-grid p { margin: 0; color: var(--text-muted); font-size: 0.88rem; }
.public-legal-footer { display: flex; gap: 1.5rem; flex-wrap: wrap; padding-top: 2rem; border-top: 1px solid var(--border-color); }
.public-legal-footer a { color: var(--text-muted); font-size: 0.85rem; }
.public-legal-footer a:hover { color: var(--primary); }

/* =============================================================================
   STUDIO
   ============================================================================= */
.studio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1rem;
  margin-top: 2rem;
}
.studio-card {
  display: flex; flex-direction: column; gap: 0.5rem;
  padding: 1.5rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  background: var(--bg-card);
  transition: all var(--transition);
}
.studio-card:hover { border-color: var(--border-glow); transform: translateY(-2px); box-shadow: var(--shadow); }
.studio-card h3 { margin: 0; color: var(--text-highlight); font-size: 1.05rem; }
.studio-card p { margin: 0; color: var(--text-muted); font-size: 0.88rem; }
.studio-card .badge-pill { align-self: flex-start; }

/* =============================================================================
   RESPONSIVE
   ============================================================================= */
@media (max-width: 1024px) {
  .bento-grid { grid-template-columns: repeat(2, 1fr); }
  .bento-card.col-span-3, .hero-main { grid-column: span 2; }
  .term-layout { grid-template-columns: 1fr; }
  .public-hero { grid-template-columns: 1fr; gap: 2rem; }
}
@media (max-width: 768px) {
  .sidebar { position: static; width: 100%; height: auto; border-right: none; border-bottom: 1px solid var(--border-color); padding: 1.25rem; }
  .app-layout { flex-direction: column; }
  .main-content { margin-left: 0; }
  .top-header { padding: 0.75rem 1.25rem; position: static; background: var(--bg-color); }
  .content-container { padding: 1.5rem 1.25rem 3rem; }
  .term-list { grid-template-columns: 1fr; }
  .level-tabs-container { overflow-x: auto; }
  .tab-btn { white-space: nowrap; padding: 0.75rem 0.9rem; font-size: 0.85rem; }
  .glossary-filter-controls { flex-direction: column; }
  .glossary-filter-controls label { width: 100%; }
  .hero-bento { grid-template-columns: 1fr; }
  .hero-main, .hero-side { grid-column: span 1; }
  .bento-grid { grid-template-columns: 1fr; }
  .bento-card.col-span-2, .bento-card.col-span-3 { grid-column: span 1; }
}
@media (max-width: 480px) {
  .public-home { padding: 0 1rem 3rem; }
  .public-nav { flex-wrap: wrap; gap: 1rem; }
  .public-hero { padding: 2rem 0; }
  .term-title, h1.term-title { font-size: 1.5rem; }
  .content-panel, .level-panel { padding: 1rem; }
}

/* =============================================================================
   PRINT
   ============================================================================= */
@media print {
  .sidebar, .top-header, .action-row, .level-tabs-container, .back-link { display: none; }
  .main-content { margin-left: 0; }
  body { background: #fff; color: #000; }
  .content-panel, .level-panel { border: 1px solid #ccc; box-shadow: none; }
}

/* =============================================================================
   LEGACY: learning-overview / overview-panel (Brain Hub)
   ============================================================================= */
.learning-overview { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 1rem; }
.overview-panel, .content-panel, .side-section, .path-card, .category-details {
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  background: var(--bg-card);
  box-shadow: var(--shadow);
}
.overview-panel {
  display: flex; min-height: 190px;
  flex-direction: column; justify-content: space-between;
  color: var(--text-main);
  padding: 1.5rem;
  overflow: hidden; position: relative;
  transition: all var(--transition);
}
.overview-panel::after {
  content: ""; position: absolute; inset: auto -20px -30px auto;
  width: 120px; height: 120px;
  background: radial-gradient(circle, var(--primary-glow-soft), transparent 70%);
  opacity: 0.5; pointer-events: none;
}
.overview-panel:hover, .path-card:hover { border-color: var(--border-glow); background: var(--bg-card-hover); transform: translateY(-3px); }
.overview-panel strong { color: var(--text-highlight); font-size: 1.2rem; }
.overview-panel span:last-child { color: var(--text-muted); }

/* Brain Guide Grid */
.brain-guide-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 1rem; margin: 2rem 0; }
.brain-guide-grid article {
  padding: 1.5rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  background: var(--bg-card);
  transition: all var(--transition);
}
.brain-guide-grid article:hover { border-color: var(--border-glow); transform: translateY(-2px); }
.brain-guide-grid span:first-child {
  display: inline-block; font-family: var(--font-mono);
  color: var(--primary); font-size: 0.85rem; font-weight: 700;
}
.brain-guide-grid strong { display: block; margin: 0.35rem 0 0.5rem; color: var(--text-highlight); font-size: 1.1rem; }
.brain-guide-grid p { margin: 0; font-size: 0.88rem; color: var(--text-muted); }

.brain-level-map { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1rem; margin: 2rem 0; }
.brain-level-map > div {
  padding: 1.5rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  background: var(--bg-card);
}
.brain-level-map span:first-child {
  display: inline-block;
  padding: 0.2rem 0.7rem;
  background: var(--primary-soft);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-pill);
  font-size: 0.72rem; color: var(--primary); font-weight: 700; letter-spacing: 0.05em;
}
.brain-level-map strong { display: block; margin: 0.5rem 0 0.35rem; color: var(--text-highlight); }
.brain-level-map p { margin: 0; font-size: 0.85rem; color: var(--text-muted); }

/* Legacy Glossary Grid */
.glossary-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 1rem; }
.term-card {
  display: flex; flex-direction: column; gap: 0.5rem;
  padding: 1.25rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  background: var(--bg-card);
  transition: all var(--transition);
}
.term-card:hover { border-color: var(--border-glow); background: var(--bg-card-hover); transform: translateY(-2px); }
.term-card h2, .term-card h3 { margin: 0; color: var(--text-highlight); }