/* =======================================================================
   IQ-Test · CHC — Premium Design System
   Token-basiert, mobile-first, layered shadows, subtile Gradients.
   ======================================================================= */

:root {
  /* Farbpalette · Light */
  --bg:          #fbfbfd;
  --bg-soft:     #f3f4f8;
  --surface:     #ffffff;
  --surface-2:   #f7f8fc;
  --ink:         #0b0d14;
  --ink-2:       #30343f;
  --ink-muted:   #5b6170;
  --ink-soft:    #8a8f9c;
  --line:        #e6e8ef;
  --line-strong: #d0d3dc;
  --accent:      #1e2a5b;    /* Deep Navy */
  --accent-2:    #2b3a7a;    /* Hover Navy */
  --accent-ink:  #ffffff;
  --accent-tint: #eef1fb;
  --accent-ring: rgba(30, 42, 91, 0.35);
  --highlight:   #b08849;    /* gebrochenes Gold als Akzent */
  --danger:      #b91c1c;
  --ok:          #0f6e52;

  /* Layered shadows */
  --shadow-xs:   0 1px 1px rgba(15,23,42,0.04);
  --shadow-sm:   0 1px 2px rgba(15,23,42,0.06), 0 1px 3px rgba(15,23,42,0.04);
  --shadow-md:   0 4px 10px -2px rgba(15,23,42,0.08), 0 2px 4px -2px rgba(15,23,42,0.05);
  --shadow-lg:   0 18px 40px -20px rgba(15,23,42,0.22), 0 8px 16px -8px rgba(15,23,42,0.08);
  --shadow-hero: 0 40px 80px -30px rgba(30,42,91,0.28);

  /* Radii */
  --r-xs: 6px;
  --r-sm: 10px;
  --r-md: 14px;
  --r-lg: 20px;
  --r-xl: 28px;
  --r-pill: 999px;

  /* Typografie */
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI",
               Roboto, "Helvetica Neue", system-ui, Arial, sans-serif;
  --font-display: "Inter", var(--font-sans);
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas,
               "JetBrains Mono", monospace;

  /* Spacing & Layout */
  --maxw: 1120px;
  --maxw-text: 720px;
  --header-h: 56px;
  --focus: 2px solid var(--accent-ring);

  /* Easing */
  --ease: cubic-bezier(.2,.7,.2,1);
}

@media (min-width: 800px) {
  :root { --header-h: 64px; }
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg:          #0a0c13;
    --bg-soft:     #0e1119;
    --surface:     #131723;
    --surface-2:   #181d2c;
    --ink:         #f3f5fa;
    --ink-2:       #d6dae5;
    --ink-muted:   #a5abba;
    --ink-soft:    #7a8092;
    --line:        #242a39;
    --line-strong: #353c50;
    --accent:      #8aa1ff;
    --accent-2:    #a0b3ff;
    --accent-ink:  #0a0c13;
    --accent-tint: #1a2144;
    --accent-ring: rgba(138, 161, 255, 0.45);
    --highlight:   #e3b877;

    --shadow-xs:   0 1px 1px rgba(0,0,0,0.4);
    --shadow-sm:   0 1px 2px rgba(0,0,0,0.4), 0 1px 3px rgba(0,0,0,0.3);
    --shadow-md:   0 6px 14px -4px rgba(0,0,0,0.55), 0 2px 4px rgba(0,0,0,0.35);
    --shadow-lg:   0 24px 48px -24px rgba(0,0,0,0.7), 0 10px 20px -10px rgba(0,0,0,0.45);
    --shadow-hero: 0 40px 90px -30px rgba(0,0,0,0.7);
  }
}

html { color-scheme: light dark; scroll-behavior: smooth; }

body {
  background:
    radial-gradient(1200px 500px at 85% -200px, rgba(30,42,91,0.07), transparent 60%),
    radial-gradient(900px 400px at -10% 10%, rgba(176,136,73,0.05), transparent 60%),
    var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  font-feature-settings: "ss01", "cv11";
}

@media (prefers-color-scheme: dark) {
  body {
    background:
      radial-gradient(1200px 500px at 85% -200px, rgba(138,161,255,0.08), transparent 60%),
      radial-gradient(900px 400px at -10% 10%, rgba(227,184,119,0.04), transparent 60%),
      var(--bg);
  }
}

.container {
  width: min(100% - 2rem, var(--maxw));
  margin-inline: auto;
}

.skiplink {
  position: fixed; top: -100px; left: 1rem; z-index: 999;
  background: var(--accent); color: var(--accent-ink);
  padding: 0.6rem 1rem; border-radius: var(--r-xs);
  transition: top 0.2s var(--ease);
}
.skiplink:focus { top: 0.75rem; }

/* ───────── Header – 3-Spalten-Grid, Pill-Nav in der Mitte ───────── */
.site-header {
  position: sticky; top: 0; z-index: 40;
  height: var(--header-h);
  background: color-mix(in srgb, var(--surface) 78%, transparent);
  backdrop-filter: saturate(180%) blur(18px);
  -webkit-backdrop-filter: saturate(180%) blur(18px);
  border-bottom: 1px solid color-mix(in srgb, var(--line) 70%, transparent);
}
.header-grid {
  height: 100%;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 0.75rem;
}
.brand {
  justify-self: start;
  display: inline-flex; align-items: center; gap: 0.6rem;
  font-weight: 650; font-size: 0.98rem; letter-spacing: -0.01em;
  text-decoration: none; color: var(--ink);
  padding: 0.3rem 0.5rem 0.3rem 0.35rem; border-radius: var(--r-pill);
  transition: background 0.15s var(--ease);
}
.brand:hover { background: var(--surface-2); text-decoration: none; }
.brand-mark {
  width: 30px; height: 30px;
  background: url("../img/favicon.svg") center / contain no-repeat;
  filter: drop-shadow(0 2px 4px rgba(15,23,42,0.25));
  flex-shrink: 0;
}
.brand-name { white-space: nowrap; letter-spacing: -0.005em; }

/* Pill-Nav mittig */
.site-nav {
  justify-self: center;
  display: inline-flex; align-items: center; gap: 0.15rem;
  padding: 0.25rem;
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  box-shadow: var(--shadow-xs);
}
.site-nav a {
  text-decoration: none; color: var(--ink-muted);
  font-size: 0.88rem; font-weight: 500;
  padding: 0.45rem 0.85rem; border-radius: var(--r-pill);
  transition: color 0.15s var(--ease), background 0.15s var(--ease);
  letter-spacing: -0.005em;
}
.site-nav a:hover { color: var(--ink); background: var(--surface); }
.site-nav a[aria-current="page"] {
  color: var(--ink); background: var(--surface); box-shadow: var(--shadow-xs);
}

/* Primär-CTA rechts */
.btn-nav {
  justify-self: end;
  display: inline-flex; align-items: center; gap: 0.4rem;
  padding: 0.5rem 1rem;
  background: linear-gradient(180deg, var(--accent-2), var(--accent));
  color: var(--accent-ink);
  font-size: 0.88rem; font-weight: 600; letter-spacing: -0.005em;
  border: 1px solid color-mix(in srgb, var(--accent) 80%, #000 20%);
  border-radius: var(--r-pill);
  box-shadow: 0 1px 0 rgba(255,255,255,0.18) inset, var(--shadow-sm);
  text-decoration: none;
  transition: transform 0.08s var(--ease), box-shadow 0.15s, filter 0.15s;
}
.btn-nav:hover { transform: translateY(-1px); filter: brightness(1.08); box-shadow: var(--shadow-md); color: var(--accent-ink); }
.btn-nav:active { transform: translateY(0); }

/* Mobile Header kompakt */
@media (max-width: 760px) {
  .brand-name { display: none; }
  .site-nav { gap: 0; padding: 0.2rem; }
  .site-nav a { padding: 0.4rem 0.7rem; font-size: 0.85rem; }
}
@media (max-width: 520px) {
  .header-grid { grid-template-columns: auto 1fr auto; }
  .site-nav { padding: 0.18rem; }
  .site-nav a { padding: 0.35rem 0.6rem; font-size: 0.82rem; }
  .btn-nav { padding: 0.45rem 0.8rem; font-size: 0.82rem; }
}
@media (max-width: 400px) {
  .site-nav { display: none; }
  .header-grid { grid-template-columns: 1fr auto; }
}

/* ───────── Typografie ───────── */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--ink);
  letter-spacing: -0.02em;
  line-height: 1.15;
  text-wrap: balance;
}
h1 { font-size: clamp(2rem, 5vw + 0.5rem, 3.25rem); font-weight: 700; margin-block: 1rem 1.25rem; }
h2 { font-size: clamp(1.35rem, 2vw + 0.6rem, 1.75rem); font-weight: 650; margin-block: 2rem 0.75rem; letter-spacing: -0.015em; }
h3 { font-size: 1.1rem; font-weight: 600; margin-block: 1.25rem 0.4rem; letter-spacing: -0.01em; }
p  { margin-block: 0.55rem 1rem; color: var(--ink-2); max-width: 68ch; }
.lead { font-size: 1.15rem; color: var(--ink-muted); line-height: 1.6; max-width: 62ch; }
address { font-style: normal; margin-block: 0.5rem 1rem; color: var(--ink-2); }
a { color: var(--accent); text-underline-offset: 4px; text-decoration-thickness: 1px; }
a:hover { color: var(--accent-2); text-decoration-thickness: 2px; }
code { font-family: var(--font-mono); font-size: 0.92em; background: var(--surface-2); padding: 0.1em 0.35em; border-radius: 4px; border: 1px solid var(--line); }
pre.formula {
  font-family: var(--font-mono); font-size: 0.95rem; line-height: 1.7;
  background: var(--surface-2); border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  border-radius: var(--r-sm);
  padding: 0.9rem 1.1rem; margin-block: 0.8rem 1.2rem;
  overflow-x: auto; color: var(--ink);
}

.content { padding-block: 2.5rem 4rem; max-width: var(--maxw-text); }
.content.wide { max-width: var(--maxw); }
.content section { margin-block: 2.25rem; }
.content ul { padding-left: 1.3rem; list-style: disc; }
.content ul li { margin-block: 0.3rem; color: var(--ink-2); }
.content ul li::marker { color: var(--ink-soft); }

/* ───────── Buttons ───────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
  padding: 0.72rem 1.15rem; border-radius: var(--r-sm);
  font-weight: 600; font-size: 0.95rem;
  border: 1px solid var(--line-strong); background: var(--surface); color: var(--ink);
  cursor: pointer; text-decoration: none;
  transition: transform 0.08s var(--ease), background 0.15s, border-color 0.15s, box-shadow 0.15s;
  box-shadow: var(--shadow-xs);
  -webkit-tap-highlight-color: transparent;
}
.btn:hover { background: var(--surface-2); border-color: var(--line-strong); transform: translateY(-1px); box-shadow: var(--shadow-sm); text-decoration: none; }
.btn:active { transform: translateY(0); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; transform: none; box-shadow: none; }
.btn-primary {
  background: linear-gradient(180deg, var(--accent-2), var(--accent));
  color: var(--accent-ink); border-color: transparent;
  box-shadow: 0 1px 0 rgba(255,255,255,0.15) inset, var(--shadow-sm);
}
.btn-primary:hover { background: linear-gradient(180deg, var(--accent-2), var(--accent-2)); color: var(--accent-ink); filter: brightness(1.05); box-shadow: var(--shadow-md); }
.btn-ghost { border-color: transparent; background: transparent; }
.btn-ghost:hover { background: var(--surface-2); }
.btn + .btn { margin-left: 0.5rem; }

/* ───────── Footer ───────── */
.site-footer {
  margin-top: 5rem;
  border-top: 1px solid var(--line);
  background: var(--surface);
  padding-block: 2rem;
  color: var(--ink-muted);
  font-size: 0.9rem;
}
.site-footer .container {
  display: flex; justify-content: space-between; align-items: center;
  gap: 1rem 2rem; flex-wrap: wrap;
}
.site-footer nav { display: flex; gap: 0.2rem 1.2rem; flex-wrap: wrap; }
.site-footer nav a { color: var(--ink-muted); text-decoration: none; padding: 0.25rem 0; }
.site-footer nav a:hover { color: var(--ink); }
.copyright { font-size: 0.85rem; color: var(--ink-soft); margin: 0; }

/* ───────── Utilities ───────── */
.muted { color: var(--ink-muted); }
.text-small { font-size: 0.88rem; }
.hidden, [hidden] { display: none !important; }
.row { display: flex; gap: 0.8rem; align-items: center; flex-wrap: wrap; }
:focus-visible { outline: var(--focus); outline-offset: 2px; border-radius: var(--r-xs); }

/* ───────── Hero (Index) – zentriert & symmetrisch ───────── */
.hero {
  padding-block: clamp(2.5rem, 6vw, 5rem) 2rem;
  position: relative;
  text-align: center;
}
.hero > * { margin-inline: auto; }
.hero .eyebrow {
  display: inline-flex; align-items: center; gap: 0.55rem;
  padding: 0.35rem 0.9rem;
  font-size: 0.78rem; font-weight: 600;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-tint);
  border: 1px solid color-mix(in srgb, var(--accent) 22%, transparent);
  border-radius: var(--r-pill);
  margin-bottom: 1.5rem;
}
.hero .eyebrow::before {
  content: ""; width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 18%, transparent);
}
.hero h1 {
  font-size: clamp(2.1rem, 4.5vw + 0.8rem, 3.6rem);
  font-weight: 720;
  letter-spacing: -0.025em;
  margin-block: 0.5rem 1.25rem;
  max-width: 22ch;
}
.hero h1 .gradient {
  background: linear-gradient(120deg, var(--accent) 10%, var(--highlight) 95%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero .lead { font-size: 1.15rem; max-width: 58ch; }
.hero-actions {
  display: flex; gap: 0.75rem; flex-wrap: wrap; justify-content: center;
  margin-top: 1.75rem;
}
.hero-meta {
  display: flex; flex-wrap: wrap; justify-content: center;
  gap: 0.5rem 1.75rem;
  margin-top: 2.25rem; padding-top: 1.5rem;
  max-width: 640px;
  border-top: 1px solid var(--line);
  font-size: 0.88rem; color: var(--ink-muted);
}
.hero-meta span { display: inline-flex; align-items: center; gap: 0.45rem; }
.hero-meta span::before {
  content: ""; width: 6px; height: 6px; border-radius: 50%;
  background: var(--ok); box-shadow: 0 0 0 3px color-mix(in srgb, var(--ok) 20%, transparent);
}

/* Nicht-Hero-Sections der Homepage zentrieren. */
main > section.container:not(.hero) {
  text-align: center;
  padding-block: 2rem;
}
main > section.container:not(.hero) > h2 { margin-inline: auto; }
main > section.container:not(.hero) > p {
  margin-inline: auto; max-width: 62ch; text-align: center;
}

/* ───────── Cards Grid – symmetrisch ───────── */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1rem;
  margin: 1.75rem auto 0;
  max-width: 960px;
  text-align: left;
}
.card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 1.4rem 1.4rem 1.5rem;
  box-shadow: var(--shadow-sm);
  transition: transform 0.18s var(--ease), box-shadow 0.18s var(--ease), border-color 0.18s;
}
.card:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); border-color: var(--line-strong); }
.card h3 { margin-top: 0; font-size: 1.05rem; }
.card h3::before {
  content: ""; display: block; width: 28px; height: 3px; border-radius: 2px;
  background: linear-gradient(90deg, var(--accent), var(--highlight));
  margin-bottom: 0.75rem;
}
.card p { margin: 0; color: var(--ink-muted); font-size: 0.95rem; }

/* ───────── Notices ───────── */
.notice {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 1.2rem 1.4rem;
  box-shadow: var(--shadow-sm);
  margin-block: 1.5rem;
}
.notice h2 { margin-top: 0; font-size: 1.15rem; }
.notice p { color: var(--ink-2); }
.notice p:last-child { margin-bottom: 0; }
.notice-strong {
  border-left: 3px solid var(--accent);
  background:
    linear-gradient(90deg, var(--accent-tint) 0%, transparent 40%),
    var(--surface);
}
.notice-warn {
  border-left: 3px solid var(--danger);
  background:
    linear-gradient(90deg, color-mix(in srgb, var(--danger) 10%, transparent) 0%, transparent 40%),
    var(--surface);
}

/* ───────── Test Shell – scrollfrei, symmetrisch zentriert ───────── */
.test-shell {
  padding-block: 1rem 1.5rem;
  min-height: calc(100dvh - var(--header-h));
  display: flex; flex-direction: column;
  max-width: 860px; margin-inline: auto;
}
#test-engine-root { flex: 1; display: flex; flex-direction: column; min-height: 0; }
#test-shell { flex: 1; display: flex; flex-direction: column; min-height: 0; }
.progress-wrap {
  flex-shrink: 0;
  display: flex; align-items: center; gap: 0.9rem; margin-bottom: 0.85rem;
  flex-wrap: wrap;
}
.progress-bar {
  flex: 1; min-width: 180px;
  height: 6px; background: var(--line); border-radius: var(--r-pill); overflow: hidden;
}
.progress-bar-fill {
  height: 100%; width: 0;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  border-radius: inherit;
  transition: width 0.35s var(--ease);
}
#progress-label {
  font-size: 0.85rem; font-weight: 500; color: var(--ink-muted);
  font-variant-numeric: tabular-nums; letter-spacing: -0.005em;
}
#timer {
  font-family: var(--font-mono); font-size: 0.95rem; font-weight: 600;
  font-variant-numeric: tabular-nums;
  padding: 0.35rem 0.65rem;
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--r-sm);
  color: var(--ink);
  min-width: 3.2rem; text-align: center;
  box-shadow: var(--shadow-xs);
}
#timer.warning {
  color: var(--danger); border-color: var(--danger);
  background: color-mix(in srgb, var(--danger) 8%, var(--surface));
  animation: pulse 1s ease-in-out infinite;
}
@keyframes pulse { 50% { box-shadow: 0 0 0 4px color-mix(in srgb, var(--danger) 18%, transparent); } }

/* Item-Panel – Flex-Column mit fixem Footer (Frage + Optionen + Button) */
.item-panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: clamp(0.85rem, 2vw, 1.4rem);
  box-shadow: var(--shadow-md);
  flex: 1 1 auto; min-height: 0;
  display: flex; flex-direction: column; gap: 0.65rem;
  overflow: hidden;       /* Panel selbst scrollt nie */
}
/* Stimulus ist der EINZIGE schrumpfbare Bereich. Bei Bedarf scrollt ER intern. */
.item-stimulus {
  flex: 1 1 0; min-height: 0;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center; gap: 0.4rem;
  padding: 0.25rem 0;
  overflow-y: auto;
  overscroll-behavior: contain;
}
.item-svg {
  width: auto; max-width: min(360px, 100%);
  max-height: 100%; height: auto;
  color: var(--ink);
  filter: drop-shadow(0 2px 6px rgba(15,23,42,0.08));
}
.item-text {
  font-size: 1rem; color: var(--ink);
  white-space: pre-wrap; margin: 0;
  max-width: 58ch;
}
/* Alles unterhalb vom Stimulus bleibt immer sichtbar. */
.item-question {
  flex-shrink: 0;
  font-weight: 600; font-size: 1rem; color: var(--ink);
  letter-spacing: -0.005em; text-align: center;
  margin: 0;
}

/* Options-Grid – symmetrisches Layout je Anzahl, nie Scrollen, fest verankert */
.options-grid {
  flex-shrink: 0;
  display: grid;
  gap: 0.5rem;
  width: 100%;
  margin-inline: auto;
}
.options-grid[data-count="2"] { grid-template-columns: repeat(2, minmax(0, 1fr)); max-width: 480px; }
.options-grid[data-count="3"] { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.options-grid[data-count="4"] { grid-template-columns: repeat(2, minmax(0, 1fr)); max-width: 560px; }
.options-grid[data-count="5"] { grid-template-columns: repeat(5, minmax(0, 1fr)); }
.options-grid[data-count="6"] { grid-template-columns: repeat(3, minmax(0, 1fr)); }

/* SVG-Optionen brauchen mehr Fläche */
.options-grid[data-mode="svg"] { gap: 0.5rem; }
.options-grid[data-mode="svg"][data-count="5"],
.options-grid[data-mode="svg"][data-count="6"] {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

/* Mobile: maximal 2 Spalten */
@media (max-width: 640px) {
  .options-grid[data-count="3"],
  .options-grid[data-count="5"],
  .options-grid[data-count="6"] { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 380px) {
  .options-grid { grid-template-columns: minmax(0, 1fr) !important; }
}

.option {
  display: flex; align-items: center; gap: 0.6rem;
  padding: 0.6rem 0.75rem;
  min-height: 48px;
  background: var(--surface);
  border: 1px solid var(--line-strong);
  border-radius: var(--r-sm);
  text-align: left; cursor: pointer;
  transition: transform 0.08s var(--ease), border-color 0.15s, background 0.15s, box-shadow 0.15s;
  box-shadow: var(--shadow-xs);
}
.option:hover {
  border-color: var(--accent);
  background: var(--accent-tint);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}
.option.selected {
  border-color: var(--accent);
  background: var(--accent-tint);
  box-shadow: 0 0 0 3px var(--accent-ring), var(--shadow-sm);
}
.option-marker {
  display: inline-flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  width: 24px; height: 24px; border-radius: 50%;
  border: 1px solid var(--line-strong);
  background: var(--bg-soft);
  font-family: var(--font-mono); font-weight: 700; font-size: 0.76rem;
  color: var(--ink-muted);
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}
.option.selected .option-marker {
  background: var(--accent); color: var(--accent-ink); border-color: var(--accent);
}
.option-content { flex: 1; min-width: 0; color: var(--ink); font-size: 0.94rem; line-height: 1.35; }
.option-content svg {
  width: 100%; height: auto;
  max-width: 72px; max-height: 72px; margin: 0 auto;
  color: var(--ink); display: block;
}
.options-grid[data-mode="svg"] .option { flex-direction: column; text-align: center; padding: 0.55rem; gap: 0.4rem; }
.options-grid[data-mode="svg"] .option-marker { width: 22px; height: 22px; font-size: 0.72rem; }
.options-grid[data-mode="svg"] .option-content svg { max-width: 64px; max-height: 64px; }

/* Transformations-Badge: zeigt Drehung / Spiegelung / Faltung als
   echtes HTML-Element an (nicht mehr im SVG). So immer lesbar, auf
   jedem Gerät, kein Font-Risiko. */
.transform-badge {
  display: inline-flex; align-items: center; gap: 0.55rem;
  padding: 0.55rem 1rem;
  background: linear-gradient(180deg, var(--accent-tint), color-mix(in srgb, var(--accent-tint) 60%, var(--surface)));
  color: var(--accent);
  border: 1px solid color-mix(in srgb, var(--accent) 28%, transparent);
  border-radius: var(--r-pill);
  font-weight: 600; font-size: 0.92rem;
  letter-spacing: -0.005em;
  box-shadow: var(--shadow-xs), 0 1px 0 rgba(255,255,255,0.4) inset;
  max-width: 100%;
  margin-top: 0.35rem;
}
.transform-badge-icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 22px; height: 22px; flex-shrink: 0;
  color: var(--accent);
}
.transform-badge-icon svg { width: 100%; height: 100%; display: block; }
.transform-badge-label { white-space: normal; line-height: 1.3; text-align: left; }
@media (max-width: 520px) {
  .transform-badge { font-size: 0.86rem; padding: 0.5rem 0.85rem; }
}

/* Fallback wenn eine Grafik nicht geladen werden konnte */
.svg-fallback {
  display: flex; align-items: center; justify-content: center;
  min-height: 80px; padding: 0.75rem 1rem;
  background: color-mix(in srgb, var(--danger) 8%, var(--surface));
  color: var(--danger);
  border: 1px dashed var(--danger);
  border-radius: var(--r-sm);
  font-size: 0.9rem; font-weight: 500;
}
#test-error {
  margin-top: 1rem;
  padding: 1rem 1.25rem;
  background: color-mix(in srgb, var(--danger) 10%, var(--surface));
  border: 1px solid var(--danger);
  border-radius: var(--r-md);
  color: var(--danger);
  font-size: 0.92rem;
  line-height: 1.5;
}

/* Actions-Row ist fest verankert unten im Panel und immer sichtbar */
.actions-row {
  flex-shrink: 0;
  display: flex; justify-content: center; align-items: center;
  gap: 0.6rem; flex-wrap: wrap;
  margin-top: 0.25rem;
}
#next-button { min-width: 220px; }
@media (max-width: 520px) { #next-button { min-width: 0; width: 100%; } }

/* Sicherheitsnetz: sehr niedrige Viewports (Landscape-Mobile)
   – wenn Stimulus trotz Schrumpfen nicht genug Platz findet, darf die Seite
   statt des Panels scrollen. Der Button bleibt dadurch erreichbar. */
@media (max-height: 560px) {
  .test-shell { min-height: 0; padding-block: 0.75rem 1rem; }
  .item-panel { overflow: visible; flex: 0 0 auto; }
  .item-stimulus { overflow-y: visible; min-height: 160px; }
}

/* Block-Intro */
.block-intro {
  text-align: left; max-width: 56ch; margin-inline: auto;
}
.block-intro h2 { margin-top: 0; }
.block-intro p { color: var(--ink-2); }
.block-intro button { margin-top: 1rem; }

/* Memory-Anzeige */
.memory-box {
  font-family: var(--font-mono);
  font-size: clamp(1.7rem, 5vw, 2.5rem);
  font-weight: 600;
  letter-spacing: 0.22em;
  padding: 1.4rem 1.8rem;
  background: linear-gradient(180deg, var(--surface), var(--accent-tint));
  border: 1px solid color-mix(in srgb, var(--accent) 20%, transparent);
  border-radius: var(--r-md);
  color: var(--ink);
  margin-block: 1rem;
  min-height: 4.5rem;
  display: flex; align-items: center; justify-content: center;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.6), var(--shadow-sm);
}
.memory-note { color: var(--ink-muted); font-size: 0.9rem; margin: 0; }

/* Disclaimer-Form */
.disclaimer-form {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: clamp(1.25rem, 3vw, 2rem);
  box-shadow: var(--shadow-md);
  margin-block: 1.5rem;
}
.disclaimer-form h2 { margin-top: 0; }
.disclaimer-form fieldset { border: 0; padding: 0; margin: 0; }
.form-row { margin-block: 1rem; display: grid; gap: 0.4rem; }
.form-row label { font-weight: 600; font-size: 0.9rem; color: var(--ink-2); }
.form-row select, .form-row input[type="text"] {
  border: 1px solid var(--line-strong);
  border-radius: var(--r-sm);
  background: var(--surface);
  color: var(--ink);
  padding: 0.6rem 0.75rem;
  width: 100%; max-width: 360px;
  transition: border-color 0.15s, box-shadow 0.15s;
  font-size: 0.95rem;
}
.form-row select:focus, .form-row input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-ring);
  outline: none;
}
.checkbox-row {
  display: flex; gap: 0.7rem; align-items: flex-start;
  margin-block: 1rem; padding: 0.8rem 1rem;
  background: var(--surface-2); border-radius: var(--r-sm);
  border: 1px solid var(--line);
}
.checkbox-row input[type="checkbox"] {
  margin-top: 0.2rem; width: 18px; height: 18px; accent-color: var(--accent);
  flex-shrink: 0;
}
.checkbox-row label { color: var(--ink-2); font-size: 0.93rem; }

/* ───────── Result-Page ───────── */
.result-headline {
  display: grid; grid-template-columns: 1fr; gap: 1rem;
  margin-block: 1rem 2rem;
}
@media (min-width: 760px) {
  .result-headline { grid-template-columns: minmax(260px, auto) 1fr; align-items: stretch; }
}
.iq-big {
  background:
    radial-gradient(180px 120px at 80% 20%, var(--accent-tint), transparent 70%),
    var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 1.75rem 1.5rem;
  text-align: center;
  box-shadow: var(--shadow-lg);
  position: relative; overflow: hidden;
}
.iq-big::before {
  content: ""; position: absolute; inset: 0;
  border-radius: inherit; pointer-events: none;
  background: linear-gradient(135deg, transparent 60%, color-mix(in srgb, var(--highlight) 18%, transparent));
}
.iq-big .label {
  font-size: 0.78rem; font-weight: 600;
  color: var(--ink-muted);
  letter-spacing: 0.12em; text-transform: uppercase;
}
.iq-big .value {
  font-family: var(--font-display);
  font-size: clamp(3.5rem, 9vw, 5rem); font-weight: 720;
  line-height: 1; margin-block: 0.3rem 0.4rem;
  font-variant-numeric: tabular-nums;
  background: linear-gradient(135deg, var(--accent) 10%, var(--highlight) 130%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  letter-spacing: -0.04em;
}
.iq-big .range {
  color: var(--ink-muted); font-size: 0.92rem;
  font-variant-numeric: tabular-nums;
}
.iq-meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 0.75rem;
}
.iq-meta .stat {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 1rem 1.1rem;
  box-shadow: var(--shadow-xs);
}
.iq-meta .stat .label {
  font-size: 0.78rem; font-weight: 600;
  color: var(--ink-muted);
  letter-spacing: 0.08em; text-transform: uppercase;
}
.iq-meta .stat .value {
  font-size: 1.5rem; font-weight: 650; margin-top: 0.2rem;
  color: var(--ink); font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
}

/* Domain-Table */
.domain-table {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  overflow: hidden;
  background: var(--surface);
  box-shadow: var(--shadow-xs);
  border-collapse: separate;
  border-spacing: 0;
}
.domain-table th, .domain-table td {
  padding: 0.75rem 0.95rem; text-align: left;
  border-bottom: 1px solid var(--line);
  font-size: 0.93rem;
}
.domain-table thead th {
  background: var(--surface-2);
  color: var(--ink-muted);
  font-weight: 600;
  font-size: 0.78rem; letter-spacing: 0.06em; text-transform: uppercase;
}
.domain-table td.num, .domain-table th.num {
  text-align: right; font-variant-numeric: tabular-nums;
  font-family: var(--font-mono); font-size: 0.88rem;
}
.domain-table tbody tr:last-child td { border-bottom: 0; }
.domain-table tbody tr:hover td { background: var(--surface-2); }

/* Radar */
.radar-wrap { display: flex; justify-content: center; margin-block: 1.5rem; padding: 1rem; }
.radar { width: min(460px, 100%); height: auto; }
.radar-ring { fill: none; stroke: var(--line); stroke-width: 1; }
.radar-axis { stroke: var(--line-strong); stroke-width: 1; }
.radar-label {
  fill: var(--ink-muted); font-size: 11px; font-weight: 600;
  font-family: var(--font-sans); letter-spacing: 0.02em;
}
.radar-data {
  fill: color-mix(in srgb, var(--accent) 20%, transparent);
  stroke: var(--accent); stroke-width: 2; stroke-linejoin: round;
  filter: drop-shadow(0 4px 12px color-mix(in srgb, var(--accent) 30%, transparent));
}
.radar-reference { fill: none; stroke: var(--ink-soft); stroke-width: 1; stroke-dasharray: 3 4; opacity: 0.6; }
.radar-dot {
  fill: var(--accent);
  stroke: var(--surface); stroke-width: 2;
}

/* ───────── SW-Update-Banner ───────── */
#sw-update-banner {
  position: fixed; left: 50%; bottom: 1.25rem;
  transform: translateX(-50%);
  display: flex; align-items: center; gap: 0.6rem;
  padding: 0.6rem 0.85rem;
  background: var(--surface);
  border: 1px solid var(--line-strong);
  border-radius: var(--r-pill);
  box-shadow: var(--shadow-lg);
  z-index: 100;
  max-width: calc(100vw - 2rem);
  font-size: 0.92rem;
  color: var(--ink);
  animation: sw-banner-in 0.28s var(--ease);
}
#sw-update-banner > span {
  padding-left: 0.5rem;
}
#sw-update-banner .btn {
  padding: 0.45rem 0.85rem; font-size: 0.88rem;
  box-shadow: none;
}
@media (max-width: 520px) {
  #sw-update-banner {
    left: 1rem; right: 1rem; bottom: 1rem;
    transform: none; border-radius: var(--r-md);
    flex-wrap: wrap; justify-content: space-between;
  }
}
@keyframes sw-banner-in {
  from { opacity: 0; transform: translate(-50%, 10px); }
  to   { opacity: 1; transform: translate(-50%, 0); }
}