:root {
  --quiz-site-header-height: 4.5rem;
  --nd-font-body: "Plus Jakarta Sans", Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --nd-font-display: "Fraunces", Georgia, serif;
  --nd-primary: #2563eb;
  --nd-primary-hover: #1d4ed8;
  --nd-primary-soft: rgba(59, 130, 246, 0.12);
  --nd-focus: #60a5fa;
  --nd-radius-control: 1rem;
  --nd-radius-card: 1.5rem;
  --nd-radius-modal: 2rem;
  --nd-shadow-card: 0 20px 45px rgba(15, 23, 42, 0.12);
  --nd-shadow-action: 0 12px 24px rgba(37, 99, 235, 0.22);
}

body[data-visual-theme] {
  font-family: var(--nd-font-body);
  -webkit-tap-highlight-color: transparent;
}

body[data-visual-theme] :where(h1, h2, h3) {
  font-family: var(--nd-font-display);
  text-wrap: balance;
}

body[data-visual-theme] :where(button, input, select, textarea) {
  font: inherit;
}

.hero-visual-picture,
.hero-art-picture {
  display: block;
  width: 100%;
}

.hero-visual-frame > .hero-visual-picture,
.hero-art-picture {
  height: 100%;
}

body[data-visual-theme] :where(a, button, input, select, textarea, summary):focus-visible {
  outline: 3px solid var(--nd-focus);
  outline-offset: 3px;
}

body[data-visual-theme] :where(button, .button, .button-secondary, .pill-route, .home-index-link) {
  border-radius: var(--nd-radius-control);
}

body[data-visual-theme] :where(button, .button, .button-secondary, .pill-route, .home-index-link):not(:disabled) {
  transition:
    transform 160ms ease,
    background-color 160ms ease,
    border-color 160ms ease,
    box-shadow 160ms ease,
    filter 160ms ease;
}

body[data-visual-theme] :where(button, .button, .button-secondary, .pill-route, .home-index-link):not(:disabled):hover {
  transform: translateY(-1px);
}

body[data-visual-theme="light"] {
  --nd-surface: rgba(255, 255, 255, 0.96);
  --nd-surface-soft: rgba(248, 250, 252, 0.96);
  --nd-border: rgba(15, 23, 42, 0.12);
  --nd-text: #0f172a;
  --nd-muted: #475569;
}

body[data-visual-theme="light"] .site-header {
  border-bottom-color: var(--nd-border);
  background: rgba(255, 255, 255, 0.94);
}

body[data-visual-theme="light"] :where(.button, .home-index-link:first-child) {
  background: linear-gradient(135deg, #3b82f6, var(--nd-primary));
  color: #fff;
  box-shadow: var(--nd-shadow-action);
}

body[data-visual-theme="light"] :where(.button, .home-index-link:first-child):hover {
  background: linear-gradient(135deg, var(--nd-primary), var(--nd-primary-hover));
  box-shadow: 0 16px 30px rgba(37, 99, 235, 0.27);
}

body[data-visual-theme="light"] :where(.button-secondary, .pill-route, .home-index-link:not(:first-child)) {
  border-color: var(--nd-border);
  background: var(--nd-surface);
  color: var(--nd-text);
}

body[data-visual-theme="light"] :where(
  .home-index,
  .metric-card,
  .audience-card,
  .route-card,
  .step-card,
  .faq-item,
  .faq-mini
) {
  border-radius: var(--nd-radius-card);
}

body[data-visual-theme="light"] .footer-shell {
  border-top-color: var(--nd-border);
}

body[data-visual-theme="dark"] {
  --nd-surface: rgba(15, 23, 42, 0.94);
  --nd-surface-soft: rgba(30, 41, 59, 0.78);
  --nd-border: rgba(148, 163, 184, 0.24);
  --nd-text: #f8fafc;
  --nd-muted: #cbd5e1;
  color: var(--nd-text);
  background:
    radial-gradient(circle at top, rgba(37, 99, 235, 0.18), transparent 32rem),
    #020617;
}

body[data-visual-theme="dark"] .app-shell {
  background:
    radial-gradient(circle at top, rgba(59, 130, 246, 0.16), transparent 34%),
    radial-gradient(circle at bottom, rgba(15, 23, 42, 0.92), #020617);
}

body[data-visual-theme].menu-open {
  overflow: hidden;
}

.quiz-site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  min-height: var(--quiz-site-header-height);
  border-bottom: 1px solid rgba(148, 163, 184, 0.2);
  background: rgba(2, 6, 23, 0.94);
  box-shadow: 0 10px 30px rgba(2, 6, 23, 0.28);
  backdrop-filter: blur(18px);
}

.quiz-site-header-inner {
  display: flex;
  width: min(calc(100% - 2rem), 80rem);
  min-height: var(--quiz-site-header-height);
  margin-inline: auto;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.quiz-site-brand {
  display: inline-flex;
  min-width: 0;
  align-items: center;
  gap: 0.7rem;
  color: #f8fafc;
  font-weight: 800;
  line-height: 1.05;
  text-decoration: none;
}

.quiz-site-brand::before {
  width: 0.9rem;
  height: 0.9rem;
  flex: 0 0 auto;
  border-radius: 999px;
  background: #3b82f6;
  box-shadow: 0 0 0 5px rgba(59, 130, 246, 0.18);
  content: "";
}

.quiz-site-brand-text {
  display: grid;
  gap: 0.18rem;
}

.quiz-site-brand-main {
  font-size: clamp(0.88rem, 3.7vw, 1.05rem);
}

.quiz-site-brand-sub {
  color: #94a3b8;
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.quiz-desktop-nav {
  display: none;
}

.quiz-mobile-menu {
  position: relative;
}

.quiz-mobile-menu > summary {
  display: grid;
  width: 3rem;
  height: 3rem;
  cursor: pointer;
  list-style: none;
  place-items: center;
  border: 1px solid rgba(148, 163, 184, 0.3);
  border-radius: 1rem;
  background: rgba(30, 41, 59, 0.9);
  color: #f8fafc;
}

.quiz-mobile-menu > summary::-webkit-details-marker,
.quiz-nav-group > summary::-webkit-details-marker,
.quiz-menu-group > summary::-webkit-details-marker {
  display: none;
}

.quiz-mobile-menu > summary::before {
  content: "☰";
  font-size: 1.35rem;
  line-height: 1;
}

.quiz-mobile-menu[open] > summary::before {
  content: "×";
  font-size: 2rem;
  font-weight: 400;
}

.quiz-menu-panel {
  position: fixed;
  top: var(--quiz-site-header-height);
  right: 0;
  left: 0;
  display: grid;
  max-height: calc(100svh - var(--quiz-site-header-height));
  gap: 0.45rem;
  overflow-y: auto;
  padding: 1rem;
  border-top: 1px solid rgba(148, 163, 184, 0.18);
  background: rgba(2, 6, 23, 0.98);
  box-shadow: 0 24px 50px rgba(2, 6, 23, 0.55);
}

.quiz-menu-panel > a,
.quiz-menu-trigger,
.quiz-menu-submenu a {
  display: flex;
  min-height: 3rem;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 0.9rem;
  border-radius: 0.9rem;
  color: #e2e8f0;
  font-weight: 700;
  text-decoration: none;
}

.quiz-menu-panel > a:hover,
.quiz-menu-panel > a:focus-visible,
.quiz-menu-trigger:hover,
.quiz-menu-trigger:focus-visible,
.quiz-menu-submenu a:hover,
.quiz-menu-submenu a:focus-visible {
  background: rgba(59, 130, 246, 0.14);
  color: #fff;
}

.quiz-menu-trigger {
  cursor: pointer;
  list-style: none;
}

.quiz-menu-arrow,
.quiz-nav-arrow {
  transition: transform 160ms ease;
}

.quiz-menu-group[open] .quiz-menu-arrow,
.quiz-nav-group[open] .quiz-nav-arrow {
  transform: rotate(180deg);
}

.quiz-menu-submenu {
  display: grid;
  gap: 0.3rem;
  margin: 0.25rem 0 0.45rem;
  padding-left: 0.8rem;
  border-left: 2px solid rgba(59, 130, 246, 0.35);
}

.quiz-menu-submenu a {
  color: #cbd5e1;
  font-size: 0.92rem;
}

@media (min-width: 1100px) {
  :root {
    --quiz-site-header-height: 5rem;
  }

  .quiz-site-header-inner {
    width: min(calc(100% - 3rem), 92rem);
  }

  .quiz-site-brand-main {
    font-size: 1.05rem;
  }

  .quiz-desktop-nav {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 0.15rem;
  }

  .quiz-desktop-nav > a,
  .quiz-nav-trigger {
    display: flex;
    min-height: 2.8rem;
    cursor: pointer;
    list-style: none;
    align-items: center;
    gap: 0.4rem;
    padding: 0.65rem 0.75rem;
    border-radius: 0.85rem;
    color: #cbd5e1;
    font-size: 0.84rem;
    font-weight: 700;
    white-space: nowrap;
    text-decoration: none;
  }

  .quiz-desktop-nav > a:hover,
  .quiz-desktop-nav > a:focus-visible,
  .quiz-nav-trigger:hover,
  .quiz-nav-trigger:focus-visible,
  .quiz-nav-group[open] .quiz-nav-trigger {
    background: rgba(59, 130, 246, 0.14);
    color: #fff;
  }

  .quiz-nav-group {
    position: relative;
  }

  .quiz-nav-submenu {
    position: absolute;
    top: calc(100% + 0.55rem);
    left: 0;
    display: grid;
    width: 17rem;
    gap: 0.25rem;
    padding: 0.65rem;
    border: 1px solid rgba(148, 163, 184, 0.22);
    border-radius: 1rem;
    background: rgba(15, 23, 42, 0.98);
    box-shadow: 0 20px 45px rgba(2, 6, 23, 0.48);
  }

  .quiz-nav-submenu a {
    padding: 0.7rem 0.75rem;
    border-radius: 0.7rem;
    color: #cbd5e1;
    font-size: 0.86rem;
    font-weight: 700;
    text-decoration: none;
  }

  .quiz-nav-submenu a:hover,
  .quiz-nav-submenu a:focus-visible {
    background: rgba(59, 130, 246, 0.14);
    color: #fff;
  }

  .quiz-mobile-menu {
    display: none;
  }
}

body[data-visual-theme="dark"] :where(.form-card, .feature-card, .comparison-table-wrap, #quizCard, #result) {
  border-radius: var(--nd-radius-card);
  border-color: var(--nd-border);
  box-shadow: var(--nd-shadow-card);
}

body[data-visual-theme="dark"] :where(.form-card, #quizCard, #result) {
  background: var(--nd-surface);
}

body[data-visual-theme="dark"] :where(input, select, textarea) {
  border-color: var(--nd-border);
  border-radius: var(--nd-radius-control);
  background: var(--nd-surface-soft);
  color: var(--nd-text);
}

body[data-visual-theme="dark"] :where(input, select, textarea):focus {
  border-color: var(--nd-focus);
  box-shadow: 0 0 0 4px rgba(96, 165, 250, 0.14);
}

body[data-visual-theme="dark"] :where(
  #continue-button,
  #resumeBtn,
  #nextBtn,
  #viewResultsBtn
) {
  border: 1px solid rgba(147, 197, 253, 0.28);
  background: linear-gradient(135deg, #3b82f6, var(--nd-primary));
  color: #fff;
  box-shadow: var(--nd-shadow-action);
}

body[data-visual-theme="dark"] :where(
  #continue-button,
  #resumeBtn,
  #nextBtn,
  #viewResultsBtn
):not(:disabled):hover {
  background: linear-gradient(135deg, var(--nd-primary), var(--nd-primary-hover));
  box-shadow: 0 16px 30px rgba(37, 99, 235, 0.28);
}

body[data-visual-theme="dark"] :where(
  #continue-button,
  #resumeBtn,
  #nextBtn,
  #viewResultsBtn
):disabled {
  border-color: rgba(148, 163, 184, 0.18);
  background: #334155;
  color: #cbd5e1;
  box-shadow: none;
  cursor: not-allowed;
  opacity: 0.58;
  transform: none;
}

body[data-visual-theme="dark"] :where(
  #prevBtn,
  #pauseBtn,
  #pauseExitBtn,
  #restartQuizBtn,
  #exitBtn,
  #reviewBtn
) {
  border: 1px solid var(--nd-border);
  background: var(--nd-surface-soft);
  color: var(--nd-text);
}

body[data-visual-theme="dark"] :where(
  #prevBtn,
  #pauseBtn,
  #pauseExitBtn,
  #restartQuizBtn,
  #exitBtn,
  #reviewBtn
):not(:disabled):hover {
  border-color: rgba(96, 165, 250, 0.48);
  background: rgba(51, 65, 85, 0.96);
}

body[data-visual-theme="dark"] :where(#pauseOverlay, #guardianDisclaimer) > div {
  border-radius: var(--nd-radius-modal);
  box-shadow: 0 28px 70px rgba(0, 0, 0, 0.48);
}

body[data-visual-theme="dark"] :where(#quizCard, #result) > :where(h1, h2, h3),
body[data-visual-theme="dark"] #question {
  color: var(--nd-text);
}

body[data-visual-theme="dark"] #progress {
  background: linear-gradient(90deg, #60a5fa, var(--nd-primary));
}

body[data-visual-theme="dark"] #options button {
  border-radius: var(--nd-radius-control);
}

body[data-visual-theme="dark"] .hero-stage a[href="#gratuito"],
body[data-visual-theme="dark"] .hero-stage a[href="#pago"] {
  border-radius: var(--nd-radius-card);
  box-shadow: 0 18px 36px rgba(2, 6, 23, 0.28);
}

body[data-visual-theme="dark"] footer {
  border-top: 1px solid var(--nd-border);
}

@media (prefers-reduced-motion: reduce) {
  body[data-visual-theme] *,
  body[data-visual-theme] *::before,
  body[data-visual-theme] *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}