.sonic-header {
  position: sticky;
  top: 0;
  z-index: 30;
  background: color-mix(in srgb, var(--color-surface) 96%, transparent);
  border-bottom: 1px solid var(--color-border);
  backdrop-filter: blur(14px);
}
.sonic-header__inner { display: block; }
.sonic-header__row { min-height: var(--header-height); display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); }
.sonic-brand { display: inline-flex; align-items: center; gap: var(--space-3); text-decoration: none; min-height: var(--tap-min); }
.sonic-brand__mark { width: 2.4rem; height: 2.4rem; flex: 0 0 auto; border-radius: 50%; display: grid; place-items: center; background: var(--color-primary); color: var(--color-on-primary); font-weight: var(--font-weight-bold); box-shadow: inset 0 0 0 1px rgb(255 255 255 / .18); }
.sonic-brand__text { display: flex; align-items: baseline; gap: .28rem; font-size: var(--font-size-lg); letter-spacing: -.02em; }
.sonic-brand__text strong { font-weight: var(--font-weight-bold); }
.sonic-brand__text span { color: var(--color-text-muted); font-weight: var(--font-weight-medium); }

.sonic-menu-toggle { min-width: var(--tap-min); min-height: var(--tap-min); display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2); padding-inline: var(--space-3); border: 1px solid var(--color-border); border-radius: var(--radius-md); background: var(--color-surface); cursor: pointer; }
.sonic-menu-toggle__icon { width: 1.15rem; height: .8rem; position: relative; border-block: 2px solid currentColor; }
.sonic-menu-toggle__icon::after { content: ''; position: absolute; left: 0; right: 0; top: calc(50% - 1px); border-top: 2px solid currentColor; }
.sonic-menu-toggle__label { font-size: var(--font-size-sm); font-weight: var(--font-weight-semibold); }

.sonic-nav-panel { display: none; border-top: 1px solid var(--color-border); background: var(--color-surface); }
.sonic-nav-panel[data-open="true"] { display: block; }
.sonic-nav { display: grid; gap: var(--space-2); padding-block: var(--space-3) var(--space-4); }
.sonic-nav-group { border: 1px solid var(--color-border); border-radius: var(--radius-md); overflow: clip; background: var(--color-surface); }
.sonic-nav-group__toggle { width: 100%; min-height: var(--tap-min); display: flex; align-items: center; justify-content: space-between; gap: var(--space-3); padding: var(--space-3) var(--space-4); border: 0; background: transparent; cursor: pointer; font-weight: var(--font-weight-semibold); text-align: left; }
.sonic-nav-group__toggle::after { content: '⌄'; font-size: 1.1rem; transition: transform var(--motion-fast) ease; }
.sonic-nav-group__toggle[aria-expanded="true"]::after { transform: rotate(180deg); }
.sonic-nav-group__items { display: none; padding: 0 var(--space-2) var(--space-2); }
.sonic-nav-group[data-open="true"] .sonic-nav-group__items { display: grid; gap: var(--space-1); }
.sonic-nav a { min-height: var(--tap-min); display: flex; align-items: center; padding: var(--space-2) var(--space-3); border-radius: var(--radius-sm); text-decoration: none; color: var(--color-text-muted); font-weight: var(--font-weight-medium); }
.sonic-nav a:hover, .sonic-nav a[aria-current="page"] { background: var(--color-primary-soft); color: var(--color-primary); }

.sonic-hero { position: relative; overflow: hidden; padding-block: clamp(4rem, 10vw, 8rem); background: linear-gradient(180deg, var(--color-surface) 0%, color-mix(in srgb, var(--color-primary-soft) 55%, var(--color-bg)) 100%); border-bottom: 1px solid var(--color-border); }
.sonic-hero::before { content: ''; position: absolute; width: min(56vw, 42rem); aspect-ratio: 1; right: -18vw; top: -32%; border-radius: 50%; background: radial-gradient(circle, color-mix(in srgb, var(--color-primary) 14%, transparent), transparent 68%); pointer-events: none; }
.sonic-hero__inner { position: relative; z-index: 1; text-align: center; display: flex; flex-direction: column; align-items: center; }
.sonic-eyebrow { margin: 0 0 var(--space-3); color: var(--color-primary); font-weight: var(--font-weight-bold); letter-spacing: .1em; text-transform: uppercase; font-size: var(--font-size-xs); }
.sonic-hero h1 { margin: 0; font-size: var(--font-size-hero); line-height: var(--line-height-tight); letter-spacing: -.055em; }
.sonic-hero__lead { max-width: 42rem; margin: var(--space-5) 0 0; color: var(--color-text-muted); font-size: clamp(1rem, 2.3vw, 1.25rem); line-height: var(--line-height-relaxed); }
.sonic-actions { width: min(100%, 32rem); display: grid; grid-template-columns: 1fr; gap: var(--space-3); margin-top: var(--space-8); }
.sonic-button { min-height: 50px; display: inline-flex; align-items: center; justify-content: center; padding: 0 var(--space-6); border-radius: var(--radius-pill); border: 1px solid transparent; text-decoration: none; font-weight: var(--font-weight-bold); letter-spacing: .015em; transition: background var(--motion-fast) ease, border-color var(--motion-fast) ease, transform var(--motion-fast) ease, box-shadow var(--motion-fast) ease; }
.sonic-button:hover { transform: translateY(-1px); }
.sonic-button--primary { background: var(--color-primary); color: var(--color-on-primary); box-shadow: 0 8px 24px color-mix(in srgb, var(--color-primary) 20%, transparent); }
.sonic-button--primary:hover { background: var(--color-primary-hover); }
.sonic-button--secondary { background: var(--color-surface); border-color: var(--color-border); color: var(--color-text); }
.sonic-button--secondary:hover { border-color: color-mix(in srgb, var(--color-primary) 40%, var(--color-border)); }

.sonic-section[id] { scroll-margin-top: calc(var(--header-height) + var(--space-3)); }
.sonic-section-heading { display: flex; align-items: end; justify-content: space-between; gap: var(--space-6); }
.sonic-section-heading h2 { margin: 0; font-size: clamp(1.75rem, 3vw, 2.4rem); line-height: var(--line-height-tight); letter-spacing: -.035em; }
.sonic-section-heading__lead { max-width: 46rem; margin: var(--space-3) 0 0; color: var(--color-text-muted); }
.sonic-count { flex: 0 0 auto; min-width: 2.25rem; min-height: 2.25rem; display: grid; place-items: center; border-radius: var(--radius-pill); background: var(--color-surface-accent); color: var(--color-primary); font-weight: var(--font-weight-bold); font-size: var(--font-size-sm); }
.sonic-count:empty { display: none; }

.sonic-card { position: relative; background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: var(--space-6); box-shadow: var(--shadow-sm); display: flex; flex-direction: column; min-height: 230px; transition: transform var(--motion-base) ease, box-shadow var(--motion-base) ease, border-color var(--motion-base) ease; }
.sonic-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: color-mix(in srgb, var(--color-primary) 25%, var(--color-border)); }
.sonic-card.is-targeted { border-color: var(--color-primary); box-shadow: 0 0 0 3px var(--color-primary-soft), var(--shadow-md); }
.sonic-card__eyebrow { margin: 0 0 var(--space-3); color: var(--color-primary); font-size: var(--font-size-xs); font-weight: var(--font-weight-bold); letter-spacing: .08em; text-transform: uppercase; }
.sonic-card h3 { margin: 0 0 var(--space-3); font-size: var(--font-size-xl); line-height: 1.25; letter-spacing: -.02em; }
.sonic-card p { margin: 0; color: var(--color-text-muted); }
.sonic-card__action { margin-top: auto; padding-top: var(--space-6); display: inline-flex; align-items: center; gap: var(--space-2); color: var(--color-primary); font-weight: var(--font-weight-semibold); text-decoration: none; }
.sonic-card__action::after { content: '→'; transition: transform var(--motion-fast) ease; }
.sonic-card__action:hover::after { transform: translateX(3px); }

.sonic-notice { border-radius: var(--radius-md); padding: var(--space-4); border: 1px solid var(--color-border); background: var(--color-surface); }
.sonic-notice[data-kind="error"] { border-color: color-mix(in srgb, var(--color-danger) 40%, var(--color-border)); background: color-mix(in srgb, var(--color-danger) 5%, var(--color-surface)); }

.sonic-footer { padding-block: var(--space-8); color: var(--color-text-muted); font-size: var(--font-size-sm); border-top: 1px solid var(--color-border); background: var(--color-surface); }
.sonic-footer__inner { display: flex; flex-wrap: wrap; justify-content: space-between; gap: var(--space-2) var(--space-6); }
.sonic-footer__brand { color: var(--color-text); font-weight: var(--font-weight-semibold); }

@media (min-width: 768px) {
  .sonic-header__inner { min-height: var(--header-height); display: flex; align-items: center; justify-content: space-between; gap: var(--space-6); }
  .sonic-header__row { min-height: auto; flex: 0 0 auto; }
  .sonic-menu-toggle { display: none; }
  .sonic-nav-panel { display: block !important; border-top: 0; background: transparent; }
  .sonic-nav { display: flex; align-items: center; gap: var(--space-2); padding: 0; }
  .sonic-nav-group { position: relative; overflow: visible; border: 0; background: transparent; }
  .sonic-nav-group__toggle { width: auto; min-height: var(--tap-min); padding: var(--space-2) var(--space-3); border-radius: var(--radius-md); }
  .sonic-nav-group__toggle:hover, .sonic-nav-group__toggle[aria-expanded="true"] { background: var(--color-surface-soft); }
  .sonic-nav-group__items { position: absolute; right: 0; top: calc(100% + var(--space-2)); width: min(19rem, 80vw); padding: var(--space-2); border: 1px solid var(--color-border); border-radius: var(--radius-md); background: var(--color-surface); box-shadow: var(--shadow-md); }
  .sonic-nav-group[data-open="true"] .sonic-nav-group__items { display: grid; }
  .sonic-actions { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 560px) {
  .sonic-section-heading { align-items: flex-start; }
  .sonic-brand__text { font-size: 1rem; }
  .sonic-menu-toggle__label { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  .sonic-card:hover, .sonic-button:hover { transform: none; }
}

/* V2-03 — Products, About & Support */
.sonic-trust-strip { border-bottom: 1px solid var(--color-border); background: var(--color-surface); }
.sonic-trust-strip__inner { display: grid; grid-template-columns: 1fr; gap: var(--space-3); padding-block: var(--space-4); }
.sonic-trust-item { display: flex; align-items: baseline; justify-content: space-between; gap: var(--space-4); font-size: var(--font-size-sm); }
.sonic-trust-item__label { color: var(--color-text-muted); }
.sonic-trust-item__value { color: var(--color-text); font-weight: var(--font-weight-semibold); text-align: right; }
.sonic-card__top { display: flex; align-items: flex-start; justify-content: space-between; gap: var(--space-3); }
.sonic-status-badge { flex: 0 0 auto; padding: .3rem .6rem; border-radius: var(--radius-pill); background: var(--color-primary-soft); color: var(--color-primary); font-size: var(--font-size-xs); font-weight: var(--font-weight-bold); }
.sonic-card__value { margin-bottom: var(--space-5) !important; }
.sonic-card__meta-row { display: grid; grid-template-columns: minmax(6.5rem, auto) 1fr; gap: var(--space-3); padding-top: var(--space-3); border-top: 1px solid color-mix(in srgb, var(--color-border) 72%, transparent); font-size: var(--font-size-sm); }
.sonic-card__meta-row + .sonic-card__meta-row { margin-top: var(--space-3); }
.sonic-card__meta-key { color: var(--color-text-muted); }
.sonic-card__meta-value { color: var(--color-text); font-weight: var(--font-weight-medium); }
.sonic-info-grid { display: grid; grid-template-columns: 1fr; gap: var(--space-4); }
.sonic-info-card { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: var(--space-6); box-shadow: var(--shadow-sm); }
.sonic-info-card h3 { margin: 0 0 var(--space-3); font-size: var(--font-size-lg); }
.sonic-info-card p { margin: 0; color: var(--color-text-muted); }
.sonic-info-card p + p { margin-top: var(--space-3); }
.sonic-faq { display: grid; gap: var(--space-3); }
.sonic-faq details { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-md); padding: 0 var(--space-4); }
.sonic-faq summary { min-height: var(--tap-min); display: flex; align-items: center; justify-content: space-between; gap: var(--space-3); cursor: pointer; font-weight: var(--font-weight-semibold); list-style: none; }
.sonic-faq summary::-webkit-details-marker { display: none; }
.sonic-faq summary::after { content: '+'; color: var(--color-primary); font-size: 1.25rem; }
.sonic-faq details[open] summary::after { content: '−'; }
.sonic-faq__answer { padding: 0 0 var(--space-4); color: var(--color-text-muted); }
.sonic-support-steps { margin: 0; padding-left: 1.25rem; color: var(--color-text-muted); }
.sonic-support-steps li + li { margin-top: var(--space-2); }
.sonic-scope-note { margin-top: var(--space-5); padding: var(--space-4); border-left: 3px solid var(--color-primary); background: var(--color-primary-soft); border-radius: 0 var(--radius-md) var(--radius-md) 0; }
.sonic-nav-utility { display: grid; gap: var(--space-1); padding: var(--space-2) 0; border-top: 1px solid var(--color-border); }
.sonic-nav-utility a { min-height: var(--tap-min); display: flex; align-items: center; padding: var(--space-2) var(--space-3); border-radius: var(--radius-sm); text-decoration: none; color: var(--color-text-muted); font-weight: var(--font-weight-medium); }
.sonic-nav-utility a:hover { background: var(--color-primary-soft); color: var(--color-primary); }

@media (min-width: 768px) {
  .sonic-trust-strip__inner { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .sonic-trust-item { display: block; text-align: center; }
  .sonic-trust-item__value { display: block; margin-top: .2rem; text-align: center; }
  .sonic-info-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-6); }
  .sonic-nav-panel { display: flex !important; align-items: center; gap: var(--space-2); }
  .sonic-nav-utility { display: flex; align-items: center; gap: var(--space-1); padding: 0; border-top: 0; }
}


/* =========================================================
   V2-04 CLEAN REWRITE
   One navigation model, one sticky header, compact Resources.
   ========================================================= */

.sonic-v204-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in srgb, var(--color-surface) 98%, transparent);
  border-bottom: 1px solid var(--color-border);
  backdrop-filter: blur(14px);
}

.sonic-v204-header__inner {
  min-height: var(--header-height);
}

.sonic-v204-header__row {
  min-height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.sonic-v204-nav-panel {
  display: none;
  border-top: 1px solid var(--color-border);
  background: var(--color-surface);
  padding-block: var(--space-2) var(--space-4);
}

.sonic-v204-nav-panel[data-open="true"] {
  display: grid;
  gap: var(--space-1);
}

.sonic-v204-nav-item {
  position: relative;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
}

.sonic-v204-section-link {
  min-height: var(--tap-min);
  display: flex;
  align-items: center;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
  font-weight: var(--font-weight-semibold);
  text-decoration: none;
}

.sonic-v204-section-link:hover,
.sonic-v204-section-link:focus-visible {
  background: var(--color-primary-soft);
  color: var(--color-primary);
}

.sonic-v204-catalog-toggle {
  width: var(--tap-min);
  min-height: var(--tap-min);
  border: 0;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--color-text-muted);
  cursor: pointer;
  font: inherit;
  font-size: 1.1rem;
}

.sonic-v204-catalog-toggle[aria-expanded="true"] {
  background: var(--color-primary-soft);
  color: var(--color-primary);
  transform: rotate(180deg);
}

.sonic-v204-catalog-menu {
  grid-column: 1 / -1;
  padding: var(--space-1) var(--space-2) var(--space-2);
}

.sonic-v204-catalog-menu a {
  min-height: var(--tap-min);
  display: flex;
  align-items: center;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
  text-decoration: none;
}

.sonic-v204-catalog-menu a:hover,
.sonic-v204-catalog-menu a:focus-visible {
  background: var(--color-primary-soft);
  color: var(--color-primary);
}

.sonic-section[id] {
  scroll-margin-top: calc(var(--header-height) + var(--space-4));
}

/* Resources V2 discovery */
.sonic-resource-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.sonic-filter-chip {
  min-height: 40px;
  padding: 0 var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-surface);
  color: var(--color-text);
  font: inherit;
  cursor: pointer;
}

.sonic-filter-chip.is-active {
  border-color: var(--color-primary);
  background: var(--color-primary-soft);
  color: var(--color-primary);
  font-weight: var(--font-weight-bold);
}

.sonic-grid--resources {
  grid-template-columns: 1fr;
}

.sonic-resource-card {
  min-height: 0;
  padding: var(--space-4);
}

.sonic-resource-card .sonic-card__value {
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: var(--space-3) !important;
}

.sonic-source-badge {
  flex: 0 0 auto;
  padding: .3rem .6rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-border);
  background: var(--color-surface-soft);
  color: var(--color-text-muted);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
}

.sonic-resource-details {
  margin-top: var(--space-2);
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-3);
}

.sonic-resource-details summary {
  cursor: pointer;
  color: var(--color-primary);
  font-weight: var(--font-weight-bold);
}

.sonic-resource-details__body {
  padding-top: var(--space-3);
}

.sonic-resource-context {
  margin-top: var(--space-3);
  padding: var(--space-3);
  border-radius: var(--radius-md);
  background: var(--color-primary-soft);
}

.sonic-resource-context strong {
  display: block;
  margin-bottom: var(--space-2);
  color: var(--color-primary);
  font-size: var(--font-size-sm);
}

.sonic-resource-context p {
  color: var(--color-text) !important;
  font-size: var(--font-size-sm);
}

.sonic-resource-note {
  margin: 0;
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
}

@media (min-width: 768px) {
  .sonic-v204-menu-toggle {
    display: none;
  }

  .sonic-v204-header__inner {
    display: block;
  }

  .sonic-v204-nav-panel {
    display: flex !important;
    align-items: center;
    gap: var(--space-1);
    border-top: 0;
    padding: 0;
    background: transparent;
  }

  .sonic-v204-header__row {
    min-height: var(--header-height);
  }

  .sonic-v204-nav-item {
    display: flex;
    align-items: center;
  }

  .sonic-v204-section-link {
    padding-inline: var(--space-3);
  }

  .sonic-v204-catalog-toggle {
    width: 2rem;
    min-height: 2rem;
    margin-left: calc(var(--space-2) * -1);
  }

  .sonic-v204-catalog-menu {
    position: absolute;
    top: calc(100% + var(--space-2));
    right: 0;
    min-width: 18rem;
    padding: var(--space-2);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-surface);
    box-shadow: var(--shadow-md);
  }

  .sonic-grid--resources {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1200px) {
  .sonic-grid--resources {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.sonic-v204-mobile-quick {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-2);
  padding-bottom: var(--space-2);
}
.sonic-v204-mobile-quick a {
  min-height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-surface);
  color: var(--color-text);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  text-decoration: none;
}
.sonic-section[id] {
  scroll-margin-top: calc(var(--header-height) + 46px + var(--space-3));
}
@media (min-width: 768px) {
  .sonic-v204-mobile-quick { display: none; }
  .sonic-section[id] { scroll-margin-top: calc(var(--header-height) + var(--space-3)); }
}

/* V2-04 automatic resource grouping */
.sonic-resource-groups {
  display: grid;
  gap: var(--space-8);
}
.sonic-resource-group {
  display: grid;
  gap: var(--space-4);
}
.sonic-resource-group__heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding-bottom: var(--space-2);
  border-bottom: 1px solid var(--color-border);
}
.sonic-resource-group__heading h3 {
  margin: 0;
  font-size: var(--font-size-lg);
}


/* V2-04 desktop card layout refinement */
.sonic-grid--products,
.sonic-grid--resources {
  display: grid;
  gap: var(--space-4);
}

@media (min-width: 768px) {
  .sonic-grid--products {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: stretch;
  }

  .sonic-grid--resources {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: stretch;
  }
}

@media (min-width: 1200px) {
  .sonic-grid--products {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .sonic-grid--resources {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* Filter visibility must win over any group display rule. */
.sonic-resource-group[hidden] {
  display: none !important;
}


/* V2-04 resource grid simplification — one horizontal grid, filter by card */
.sonic-grid--resources {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}

.sonic-resource-card[hidden] {
  display: none !important;
}

/* Remove obsolete grouped-layout effect if earlier rules remain in stylesheet. */
.sonic-resource-groups,
.sonic-resource-group {
  display: contents;
}
.sonic-resource-group__heading {
  display: none !important;
}

/* Anchor target should sit directly below the sticky header. */
html {
  scroll-padding-top: var(--header-height);
}
.sonic-section[id],
.sonic-card[id] {
  scroll-margin-top: var(--header-height);
}

@media (min-width: 768px) {
  .sonic-grid--resources {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  html {
    scroll-padding-top: var(--header-height);
  }
  .sonic-section[id],
  .sonic-card[id] {
    scroll-margin-top: var(--header-height);
  }
}

@media (min-width: 1200px) {
  .sonic-grid--resources {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}


/* V2-04 FINAL RESOURCE GRID + ANCHOR OFFSET */
.sonic-grid--resources {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}

.sonic-resource-card[hidden] {
  display: none !important;
}

/* Neutralize obsolete grouped-layout rules if they still exist above. */
.sonic-resource-groups,
.sonic-resource-group {
  display: contents;
}
.sonic-resource-group__heading {
  display: none !important;
}

/* Keep native anchor target immediately under the sticky header. */
html {
  scroll-padding-top: var(--header-height);
}
.sonic-section[id],
.sonic-card[id] {
  scroll-margin-top: var(--header-height);
}

@media (min-width: 768px) {
  .sonic-grid--resources {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1200px) {
  .sonic-grid--resources {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}


/* V2-04 NAV TARGET = SECTION HEADING
   Public hashes target the visible heading, not the padded section shell. */
.sonic-section-heading[id] {
  scroll-margin-top: calc(var(--header-height) + var(--space-2));
}

/* Old section-target offsets are irrelevant because public section IDs
   no longer live on .sonic-section. */


/* V2-04 SECTION HEADING GAP REFINEMENT
   Keep section label close to the sticky header.
   desktop: 8px gap, mobile: 6px gap. */
.sonic-section-heading[id] {
  scroll-margin-top: calc(var(--header-height) + 6px);
}

@media (min-width: 768px) {
  .sonic-section-heading[id] {
    scroll-margin-top: calc(var(--header-height) + 0px);
  }
}


/* ================================================================
   V2-05 — WHAT'S NEW / RELEASE NOTES
   Public, user-facing updates only. Static-first rendering.
   ================================================================ */
.sonic-release-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}

.sonic-release-card {
  display: flex;
  flex-direction: column;
  min-width: 0;
  padding: var(--space-6);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
}

.sonic-release-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
  font-size: 0.875rem;
}

.sonic-release-type {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding-inline: var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  font-weight: 700;
  letter-spacing: 0.03em;
}

.sonic-release-card h3 {
  margin: 0 0 var(--space-2);
}

.sonic-release-card > p {
  margin: 0;
}

.sonic-release-highlights {
  margin: var(--space-4) 0 0;
  padding-inline-start: 1.25rem;
}

.sonic-release-highlights li + li {
  margin-top: var(--space-2);
}

.sonic-release-footer {
  margin-top: auto;
  padding-top: var(--space-4);
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

@media (min-width: 768px) {
  .sonic-release-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}


/* ================================================================
   V2-06.1 — FREE TOOLS / SONIC QUICK QUIZ CORE
   ================================================================ */
.sonic-grid--tools {
  grid-template-columns: minmax(0, 1fr);
}

.sonic-tool-card {
  max-width: 760px;
  padding: var(--space-6);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
}

.sonic-tool-card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  align-items: center;
  margin-bottom: var(--space-3);
  font-size: .875rem;
  color: var(--color-text-muted);
}

.sonic-tool-card h3 {
  margin: 0 0 var(--space-3);
  font-size: clamp(1.35rem, 3vw, 1.8rem);
}

.sonic-tool-card__privacy {
  font-size: .925rem;
  color: var(--color-text-muted);
}

.quick-quiz-app {
  min-height: 100vh;
}

.quick-tool-header {
  min-height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.quick-tool-header__nav {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.quick-tool-header__nav a {
  font-weight: 700;
  text-decoration: none;
}

.quick-hero {
  padding-block: clamp(var(--space-10), 7vw, var(--space-16));
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface-soft);
}

.quick-hero__inner {
  max-width: 900px;
}

.quick-hero h1 {
  margin-block: var(--space-2);
}

.quick-hero__lead {
  max-width: 760px;
  font-size: clamp(1.05rem, 2.5vw, 1.25rem);
}

.quick-contract {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-5);
}

.quick-contract span {
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-surface);
  font-size: .9rem;
}

.quick-panel[hidden] {
  display: none !important;
}

.quick-workspace,
.quick-runner {
  max-width: 1040px;
}

.quick-panel-heading {
  max-width: 780px;
  margin-bottom: var(--space-6);
}

.quick-panel-heading h2 {
  margin-block: var(--space-2);
}

.quick-import-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}

.quick-drop-zone {
  position: relative;
  min-height: 220px;
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface-soft);
  display: grid;
  place-items: center;
  padding: var(--space-5);
  text-align: center;
}

.quick-drop-zone[data-drag="true"] {
  outline: 3px solid currentColor;
  outline-offset: 2px;
}

.quick-drop-zone[data-busy="true"] {
  opacity: .65;
}

.quick-file-input {
  position: absolute;
  inline-size: 1px;
  block-size: 1px;
  opacity: 0;
  pointer-events: none;
}

.quick-drop-label {
  display: grid;
  justify-items: center;
  gap: var(--space-2);
  cursor: pointer;
}

.quick-file-name {
  margin: var(--space-3) 0 0;
  font-size: .9rem;
  overflow-wrap: anywhere;
}

.quick-or {
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  color: var(--color-text-muted);
}

.quick-text-side {
  min-width: 0;
}

#quiz-source {
  width: 100%;
  min-height: 360px;
  margin-top: var(--space-2);
  padding: var(--space-4);
  resize: vertical;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  color: var(--color-text);
  font: inherit;
  line-height: 1.55;
}

#quiz-source:focus,
#quiz-title:focus {
  outline: 3px solid currentColor;
  outline-offset: 2px;
}

.quick-mini-actions,
.quick-primary-action,
.quick-runner-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-3);
}

.quick-title-row {
  display: grid;
  gap: var(--space-2);
  margin-top: var(--space-5);
  max-width: 640px;
}

#quiz-title {
  min-height: 46px;
  padding-inline: var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  color: var(--color-text);
  font: inherit;
}

.quick-format-note,
.quick-privacy-note,
.quick-share-ready {
  margin-top: var(--space-5);
  padding: var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface-soft);
}

.quick-format-note h3 {
  margin-top: 0;
}

.quick-format-note code {
  white-space: nowrap;
}

.quick-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-3);
  margin-bottom: var(--space-5);
}

.quick-stat {
  min-width: 0;
  padding: var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
}

.quick-stat strong {
  display: block;
  font-size: clamp(1.5rem, 4vw, 2.2rem);
}

.quick-stat span {
  font-size: .875rem;
  color: var(--color-text-muted);
}

.quick-issues {
  display: grid;
  gap: var(--space-2);
  padding: 0;
  list-style: none;
}

.quick-issue {
  padding: var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.quick-issue--error::before {
  content: "⚠ ";
}

.quick-issue--warning::before {
  content: "ℹ ";
}

.quick-valid-details {
  margin-block: var(--space-5);
}

.quick-valid-details summary {
  cursor: pointer;
  font-weight: 700;
}

.quick-valid-details li {
  margin-block: var(--space-2);
}

.quick-runner__top {
  display: flex;
  justify-content: space-between;
  align-items: start;
  gap: var(--space-4);
  margin-bottom: var(--space-5);
}

.quick-progress {
  white-space: nowrap;
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
}

.quick-question-fieldset {
  border: 0;
  padding: 0;
  margin: 0;
}

.quick-question-fieldset legend {
  width: 100%;
  margin-bottom: var(--space-5);
  font-size: clamp(1.2rem, 3vw, 1.55rem);
  font-weight: 800;
  line-height: 1.4;
}

.quick-options {
  display: grid;
  gap: var(--space-3);
}

.quick-option {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  min-height: 52px;
  padding: var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  cursor: pointer;
}

.quick-option:has(input:checked) {
  outline: 2px solid currentColor;
  outline-offset: 1px;
}

.quick-option input {
  margin-top: .25rem;
  flex: 0 0 auto;
}

.quick-result-score {
  display: flex;
  align-items: baseline;
  gap: var(--space-3);
  margin-bottom: var(--space-6);
}

.quick-result-score strong {
  font-size: clamp(2.2rem, 8vw, 4rem);
}

.quick-result-score span {
  font-size: 1.25rem;
  font-weight: 700;
}

.quick-result-details {
  display: grid;
  gap: var(--space-3);
}

.quick-result-item {
  padding: var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
}

.quick-result-item h3 {
  margin-top: 0;
}

.sonic-visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0,0,0,0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

@media (min-width: 768px) {
  .quick-import-grid {
    grid-template-columns: minmax(260px, .8fr) auto minmax(0, 1.6fr);
    align-items: stretch;
  }

  .quick-or {
    padding-inline: var(--space-2);
  }
}

@media (max-width: 520px) {
  .quick-tool-header__nav {
    gap: var(--space-2);
    font-size: .875rem;
  }

  .quick-contract {
    display: grid;
  }

  .quick-stats {
    grid-template-columns: 1fr;
  }

  .quick-runner__top {
    display: grid;
  }

  .quick-primary-action .sonic-button,
  .quick-mini-actions .sonic-button,
  .quick-runner-actions .sonic-button {
    width: 100%;
  }

  #quiz-source {
    min-height: 300px;
  }
}

/* V2-06.2 — Quick Quiz Share + Link + QR */
.quick-shared-notice {
  margin-top: var(--space-4);
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface-soft);
}
.quick-share-grid {
  display: grid;
  grid-template-columns: minmax(220px, 340px) minmax(0, 1fr);
  gap: var(--space-6);
  align-items: start;
}
.quick-qr {
  padding: var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: white;
}
.quick-qr svg { display:block; width:100%; height:auto; }
.quick-share-copy { min-width:0; }
#share-url {
  width:100%;
  margin-top:var(--space-2);
  padding:var(--space-3);
  border:1px solid var(--color-border);
  border-radius:var(--radius-md);
  font:inherit;
  overflow-wrap:anywhere;
  resize:vertical;
}
@media (max-width: 700px) {
  .quick-share-grid { grid-template-columns:1fr; }
  .quick-qr { max-width:320px; margin-inline:auto; }
}


/* V2-06.4 WB02 — mobile quick navigation: 4 balanced actions */
@media (max-width: 767px) {
  .sonic-mobile-quick-nav,
  .mobile-quick-nav,
  [data-mobile-quick-nav] {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .sonic-mobile-quick-nav > a,
  .mobile-quick-nav > a,
  [data-mobile-quick-nav] > a {
    min-width: 0;
    text-align: center;
    white-space: nowrap;
  }
}

/* V2-06.5 Persistent Quiz & Creator Dashboard */
.quick-dashboard{border-bottom:1px solid var(--color-border,#d8dde5)}
.quick-dashboard-heading{display:flex;justify-content:space-between;gap:16px;align-items:flex-start}
.quick-my-quizzes{display:grid;gap:12px;margin-top:16px}
.quick-my-quiz-card{display:flex;justify-content:space-between;gap:18px;align-items:center;padding:16px;border:1px solid var(--color-border,#d8dde5);border-radius:12px}
.quick-my-quiz-card h3{margin:0 0 6px}
.quick-my-quiz-card p{margin:0 0 4px}
.quick-my-quiz-card__actions{display:flex;gap:8px;flex-wrap:wrap}
.quick-empty-state,.quick-error-state{padding:18px;border:1px dashed var(--color-border,#d8dde5);border-radius:12px}
@media(max-width:767px){
  .quick-dashboard-heading,.quick-my-quiz-card{flex-direction:column;align-items:stretch}
  .quick-my-quiz-card__actions{display:grid;grid-template-columns:1fr 1fr}
  .quick-my-quiz-card__actions .sonic-button{width:100%}
}

/* V2-06.6 Ranking */
.quick-ranking,.participant-ranking{list-style:none;padding:0;margin:14px 0;display:grid;gap:8px}
.quick-ranking li,.participant-ranking li{display:flex;justify-content:space-between;gap:16px;padding:12px 14px;border:1px solid var(--color-border,#d8dde5);border-radius:10px}
.participant-leaderboard{margin-top:24px}
.participant-leaderboard__heading{display:flex;justify-content:space-between;gap:12px;align-items:center}
@media(max-width:767px){
  .quick-ranking li,.participant-ranking li{align-items:flex-start}
  .participant-leaderboard__heading{align-items:stretch;flex-direction:column}
  .quick-my-quiz-card__actions{grid-template-columns:1fr}
}

/* V2-06.6 WB02 — destructive Quiz action */
.quick-delete-button{font-weight:700}

/* V2-06.7 Printable Test */
.quick-print-settings{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin:18px 0}
.quick-print-settings label{display:grid;gap:6px}
.quick-print-settings input,.quick-print-settings select{width:100%;min-height:42px}
.quick-print-preview{margin-top:20px}
.print-sheet{background:#fff;color:#111;max-width:210mm;margin:0 auto;padding:16mm;box-shadow:0 2px 14px rgba(0,0,0,.12);font-size:var(--print-font-size,12pt)}
.print-test-header{text-align:center;margin-bottom:18px}
.print-test-header h1{font-size:1.35em;margin:8px 0}
.print-student-meta{display:flex;justify-content:space-between;gap:16px;text-align:left;margin-top:14px}
.print-duration{margin-top:8px}
.print-question-columns{column-count:var(--print-columns,1);column-gap:10mm}
.print-question{break-inside:avoid;margin:0 0 14px}
.print-question p{margin:0 0 7px}
.print-options{display:grid;gap:5px 12px}
.print-options--four{grid-template-columns:repeat(4,minmax(0,1fr))}
.print-options--two{grid-template-columns:repeat(2,minmax(0,1fr))}
.print-options--one{grid-template-columns:1fr}
.print-answer-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px}
.print-answer-item{border-bottom:1px solid #ddd;padding:5px}.print-answer-item span{display:block;font-size:.9em;margin-top:3px}
@media(max-width:767px){
 .quick-print-settings{grid-template-columns:1fr}
 .print-sheet{padding:18px;box-shadow:none}
 .print-student-meta{flex-direction:column}
 .print-options--four,.print-options--two{grid-template-columns:1fr}
 .print-answer-grid{grid-template-columns:1fr 1fr}
}
@media print{
 body *{visibility:hidden!important}
 #print-preview-host,#print-preview-host *{visibility:visible!important}
 #print-preview-host{position:absolute;left:0;top:0;width:100%;max-width:none;margin:0;padding:0}
 .print-sheet{box-shadow:none;max-width:none;width:100%;padding:12mm}
 /* Print must preserve the same AUTO answer layout as V2-06.7 preview.
    The mobile media query above may collapse FOUR/TWO layouts to one column
    because print preview can expose a narrow CSS viewport. Override it here. */
 .print-options--four{grid-template-columns:repeat(4,minmax(0,1fr))!important}
 .print-options--two{grid-template-columns:repeat(2,minmax(0,1fr))!important}
 .print-options--one{grid-template-columns:1fr!important}
 .print-graded-meta{grid-template-columns:1fr 1fr!important}
 @page{size:A4;margin:0}
}

/* V2-06.7 WB02 — visible selected action */
.print-mode-button{transition:filter .15s ease,transform .15s ease}
.print-mode-button.is-active{
  background:var(--color-action-primary,var(--color-primary,#1f5eff));
  color:var(--color-on-primary,#fff);
  border-color:var(--color-action-primary,var(--color-primary,#1f5eff));
}
.print-mode-button:active{transform:translateY(1px);filter:brightness(1.08)}


/* V2-06 Final Clean — persistent Quick Quiz exit control.
   Kept outside the sticky header so users can leave from any creator view. */
.quick-exit-always{
  position:fixed;
  right:16px;
  bottom:calc(16px + env(safe-area-inset-bottom, 0px));
  z-index:90;
  min-height:44px;
  padding:10px 14px;
  box-shadow:0 4px 18px rgba(0,0,0,.16);
  background:rgba(255,255,255,.96);
}
@media (max-width:767px){
  .quick-quiz-app main{
    padding-bottom:calc(72px + env(safe-area-inset-bottom, 0px));
  }
  .quick-exit-always{
    right:12px;
    bottom:calc(12px + env(safe-area-inset-bottom, 0px));
    min-height:42px;
    padding:8px 12px;
    font-size:.82rem;
  }
}
@media print{
  .quick-exit-always{display:none !important;}
}

/* Production identity from V1.6.8 VERIFIED BASELINE */
.sonic-brand__mark{overflow:hidden;background:transparent;box-shadow:none}
.sonic-brand__mark img{width:100%;height:100%;display:block;object-fit:contain}
.sonic-hero{
 min-height:clamp(28rem,68vh,46rem);display:flex;align-items:center;
 background:linear-gradient(180deg,rgba(244,248,252,.12),rgba(244,248,252,.10)),
 url('/assets/hero-cat-home-v154.webp') 62% center / cover no-repeat;background-color:#eef4f8
}
.sonic-hero::before{inset:0;width:auto;aspect-ratio:auto;right:0;top:0;border-radius:0;background:linear-gradient(180deg,rgba(255,255,255,.18),rgba(255,255,255,.08))}
.sonic-hero__inner{background:rgba(255,255,255,.76);backdrop-filter:blur(2px);border-radius:var(--radius-xl);padding:clamp(1.25rem,4vw,2.5rem);max-width:52rem}
@media(max-width:767px){.sonic-hero{min-height:70svh;background-position:62% center}.sonic-hero__inner{background:rgba(255,255,255,.80)}}

/* FINAL CLEAN: mobile section anchors clear the main sticky row + quick-nav row. */
@media (max-width:767px){
  .sonic-section-heading[id]{
    scroll-margin-top:calc(var(--header-height) + 54px);
  }
}


/* FINAL CLEAN — Hero text floats directly on the verified V1.6.8 background.
   No card/panel behind the hero copy; readability is handled without hiding the image. */
.sonic-hero__inner{
  background:transparent;
  backdrop-filter:none;
  -webkit-backdrop-filter:none;
  border-radius:0;
  box-shadow:none;
}
.sonic-hero__copy{
  text-shadow:0 1px 2px rgba(255,255,255,.72);
}
@media (max-width:767px){
  .sonic-hero__inner{
    background:transparent;
    backdrop-filter:none;
    -webkit-backdrop-filter:none;
  }
}


/* FINAL CLEAN — Improve readability of the two lighter Hero text lines
   while keeping the Hero copy container fully transparent. */
.sonic-hero .sonic-eyebrow,
.sonic-hero .sonic-hero__lead{
  color:var(--color-text);
  opacity:1;
  text-shadow:
    0 1px 1px rgba(255,255,255,.95),
    0 2px 6px rgba(255,255,255,.78);
}
.sonic-hero .sonic-eyebrow{
  font-weight:var(--font-weight-bold);
}
.sonic-hero .sonic-hero__lead{
  font-weight:var(--font-weight-medium);
}


/* PRODUCTION VISUAL HIERARCHY CLEAN
   No new background images; Hero remains untouched. */
.sonic-section--products{background:var(--color-surface)}
.sonic-section--resources{background:var(--color-surface-soft)}
.sonic-section--free-tools{position:relative;background:var(--color-surface)}
.sonic-section--free-tools::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,rgba(238,244,248,.58) 0%,rgba(255,255,255,0) 34%)
}
.sonic-section--free-tools>.sonic-container{position:relative;z-index:1}
.sonic-section--free-tools .sonic-tool-card{box-shadow:var(--shadow-sm)}
.sonic-section--whats-new{background:var(--color-surface)}
.sonic-section--about{background:var(--color-surface-soft)}
.sonic-section--support{background:var(--color-surface)}


/* PRODUCT ACCESS GATE — temporary browser-side lock, restored from V1.6.8 behavior. */
body.sonic-modal-open { overflow: hidden; }
.sonic-login-modal { position: fixed; inset: 0; z-index: 1000; display: grid; place-items: center; padding: var(--space-4); }
.sonic-login-modal[hidden] { display: none; }
.sonic-login-backdrop { position: absolute; inset: 0; background: rgb(15 23 42 / .54); }
.sonic-login-card { position: relative; width: min(100%, 28rem); max-height: min(90vh, 42rem); overflow: auto; padding: var(--space-6); border: 1px solid var(--color-border); border-radius: var(--radius-lg); background: var(--color-surface); box-shadow: var(--shadow-md); }
.sonic-login-card h2 { margin: 0 0 var(--space-3); font-size: var(--font-size-xl); }
.sonic-login-card > p { margin: 0; color: var(--color-text-muted); }
.sonic-login-lock { width: 2.7rem; height: 2.7rem; display: grid; place-items: center; margin-bottom: var(--space-3); border-radius: 50%; background: var(--color-primary-soft); }
.sonic-login-close { position: absolute; top: var(--space-3); right: var(--space-3); width: var(--tap-min); height: var(--tap-min); border: 0; border-radius: 50%; background: transparent; color: var(--color-text-muted); cursor: pointer; font-size: 1.5rem; }
.sonic-login-close:hover, .sonic-login-close:focus-visible { background: var(--color-surface-soft); color: var(--color-text); }
.sonic-login-card form { display: grid; gap: var(--space-4); margin-top: var(--space-5); }
.sonic-login-card label { display: grid; gap: var(--space-2); font-weight: var(--font-weight-semibold); }
.sonic-login-card input { width: 100%; min-height: var(--tap-min); padding: 0 var(--space-3); border: 1px solid var(--color-border); border-radius: var(--radius-md); background: var(--color-surface); color: var(--color-text); font: inherit; }
.sonic-login-card input:focus { outline: 2px solid var(--color-primary); outline-offset: 2px; }
.sonic-login-error { min-height: 1.4em; margin: 0; color: var(--color-danger); font-size: var(--font-size-sm); }
.sonic-login-submit { width: 100%; margin: 0; cursor: pointer; }
.sonic-login-note { margin-top: var(--space-4) !important; font-size: var(--font-size-xs); }
.sonic-card__action--locked { border: 0; background: transparent; cursor: pointer; text-align: left; font: inherit; }

/* QUICK QUIZ UX REFINEMENT — presentation only; core logic frozen */
.quick-quiz-app .quick-hero {
  padding-block: clamp(14px, 2.2vw, 28px);
}
.quick-quiz-app .quick-hero__inner { max-width: 1040px; }
.quick-quiz-app .quick-hero h1 {
  margin-block: 2px 4px;
  font-size: clamp(1.65rem, 3.2vw, 2.45rem);
}
.quick-quiz-app .quick-hero__lead {
  margin-block: 0;
  font-size: clamp(.96rem, 1.8vw, 1.08rem);
  line-height: 1.45;
}
.quick-quiz-app .quick-contract { margin-top: 10px; gap: 6px; }
.quick-quiz-app .quick-contract span { padding: 5px 9px; font-size: .82rem; }
.quick-quiz-app #creator-panel { padding-top: clamp(18px, 3vw, 34px); }
.quick-quiz-app #creator-panel .quick-panel-heading { margin-bottom: 14px; }
.quick-quiz-app #creator-panel .quick-panel-heading p { margin-bottom: 0; }
.quick-import-stack { display: grid; gap: 12px; }
.quick-drop-zone.quick-drop-zone--compact {
  min-height: 0;
  padding: 10px 14px;
  display: block;
  text-align: left;
}
.quick-drop-label--row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.quick-drop-label--row > span:first-child { display: grid; gap: 2px; }
.quick-drop-label--row small { color: var(--color-text-muted); font-weight: 500; }
.quick-drop-zone--compact .quick-file-name { margin: 6px 0 0; }
.quick-editor-heading {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 5px;
}
.quick-editor-heading > span { color: var(--color-text-muted); font-size: .88rem; }
.quick-quiz-app #quiz-source {
  box-sizing: border-box;
  min-height: 180px;
  height: 180px;
  max-height: min(720px, 76vh);
  margin-top: 0;
  overflow-y: auto;
  resize: vertical;
  transition: height .12s ease-out;
}
.quick-format-note--compact { margin-top: 16px; }
.quick-format-note--compact > summary { cursor: pointer; font-weight: 600; }
.quick-management-divider {
  padding-bottom: 12px;
  border-top: 1px solid var(--color-border);
  background: var(--color-surface-soft);
}
.quick-management-divider h2 { margin-block: 4px; }
@media (max-width: 767px) {
  .quick-quiz-app .quick-hero { padding-block: 10px 14px; }
  .quick-quiz-app .quick-contract { margin-top: 8px; }
  .quick-quiz-app .quick-contract span { font-size: .76rem; padding: 4px 7px; }
  .quick-drop-label--row { align-items: stretch; flex-direction: column; }
  .quick-drop-label--row .sonic-button { align-self: flex-start; }
  .quick-editor-heading { align-items: flex-start; flex-direction: column; gap: 2px; }
  .quick-quiz-app #quiz-source {
    min-height: 150px;
    height: 150px;
    max-height: 72vh;
    padding: 12px;
  }
}

/* UX TEST — compact mobile navigation, tactile cards/buttons, participant single-question flow */
@media (max-width:767px){
  .sonic-v204-mobile-quick{display:none !important;}
  .sonic-section-heading[id],.sonic-section[id]{scroll-margin-top:calc(var(--header-height) + var(--space-3));}
}

/* Light 3D/tactile treatment: visible but deliberately restrained. */
.sonic-button,
.sonic-filter-chip,
.sonic-menu-toggle,
.sonic-v204-menu-toggle{
  box-shadow:0 3px 0 rgba(15,23,42,.10),0 7px 16px rgba(15,23,42,.07);
}
.sonic-button:active,
.sonic-filter-chip:active,
.sonic-menu-toggle:active,
.sonic-v204-menu-toggle:active{
  transform:translateY(2px);
  box-shadow:0 1px 0 rgba(15,23,42,.10),0 3px 8px rgba(15,23,42,.06);
}
.sonic-card,.sonic-tool-card,.sonic-info-card,.sonic-release-card{
  box-shadow:0 3px 0 rgba(15,23,42,.07),0 10px 24px rgba(15,23,42,.07);
}
.sonic-card--interactive{cursor:pointer;transition:transform var(--motion-fast) ease,box-shadow var(--motion-fast) ease,border-color var(--motion-fast) ease;}
.sonic-card--interactive:hover{transform:translateY(-3px);box-shadow:0 5px 0 rgba(15,23,42,.07),0 14px 28px rgba(15,23,42,.09);}
.sonic-card--interactive:active{transform:translateY(1px);box-shadow:0 1px 0 rgba(15,23,42,.07),0 6px 14px rgba(15,23,42,.07);}
.sonic-card--interactive:focus-visible{outline:3px solid var(--color-primary-soft);outline-offset:3px;border-color:var(--color-primary);}

.quick-format-note--compact{display:flex;align-items:flex-start;flex-direction:column;gap:10px;}
.quick-format-toggle{min-height:42px;padding-inline:16px;font-size:.82rem;}
.quick-format-help{width:100%;padding:14px 16px;border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface-soft);}
.quick-format-help p{margin:0;color:var(--color-text-muted);}
.quick-format-help p+p{margin-top:10px;}

.participant-name-row{margin:0 0 12px;color:var(--color-text-muted);}
.participant-question--single{min-height:min(52vh,520px);display:flex;flex-direction:column;justify-content:flex-start;}
.participant-question-nav{display:grid;grid-template-columns:1fr 1fr 1fr;gap:10px;margin-top:18px;position:sticky;bottom:calc(10px + env(safe-area-inset-bottom,0px));z-index:8;padding:10px;border:1px solid var(--color-border);border-radius:var(--radius-lg);background:color-mix(in srgb,var(--color-surface) 96%,transparent);box-shadow:0 8px 24px rgba(15,23,42,.12);backdrop-filter:blur(10px);}
.participant-question-nav .sonic-button{width:100%;padding-inline:10px;}
.participant-finish{background:var(--color-surface);border-color:var(--color-border);color:var(--color-text);}
.participant-exit{margin-top:14px;}
@media(max-width:560px){
  .participant-question--single{min-height:46vh;}
  .participant-question-nav{gap:6px;padding:7px;}
  .participant-question-nav .sonic-button{min-height:46px;padding-inline:6px;font-size:.78rem;line-height:1.15;}
}

/* V2-06.8B Participant Extended Identity */
.participant-field-note{margin-top:.35rem}.participant-ranking-org,.quick-ranking-org{display:block;font-size:.85em;font-weight:400;opacity:.78;margin-top:.15rem}


/* V2-06.8C — Creator submission review & paper archive */
.quick-submission-list{display:grid;gap:10px;margin-top:16px}
.quick-submission-row{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:14px;border:1px solid var(--color-border,#d8dde5);border-radius:10px}
.quick-submission-row__identity{display:grid;gap:3px;min-width:0}
.quick-submission-row__identity span,.quick-submission-row__identity small{color:var(--color-text-muted,#64748b)}
.quick-submission-row__actions{display:flex;gap:8px;flex-wrap:wrap}
.submission-review-host{margin-top:18px}
#submission-review-print-host{display:none}
.submission-sheet{background:#fff;color:#111;max-width:210mm;margin:0 auto;padding:14mm;box-shadow:0 2px 14px rgba(0,0,0,.12);font-size:11pt;line-height:1.35}
.submission-sheet__header{text-align:center;border-bottom:1px solid #999;padding-bottom:8px;margin-bottom:10px}
.submission-sheet__header h1{font-size:1.3em;margin:3px 0}.submission-sheet__header h2{font-size:1.02em;margin:2px 0;font-weight:600}.submission-brand{margin:0;font-weight:700;letter-spacing:.04em}
.submission-meta{display:grid;grid-template-columns:1fr 1fr;gap:4px 16px;border-bottom:1px solid #bbb;padding-bottom:9px;margin-bottom:8px}
.submission-legend{display:flex;gap:18px;flex-wrap:wrap;font-size:.9em;margin:0 0 10px}
.submission-question{break-inside:avoid;padding:2px 0 9px;margin:0 0 8px;border-bottom:1px dotted #bbb}
.submission-question__line{display:flex;justify-content:space-between;align-items:flex-start;gap:12px}.submission-question__line p{margin:0 0 6px;flex:1}.submission-result{font-weight:700;font-size:.9em;white-space:nowrap}
.submission-options{display:grid;gap:5px 12px;margin:4px 0}.submission-options--four{grid-template-columns:repeat(4,minmax(0,1fr))}.submission-options--two{grid-template-columns:repeat(2,minmax(0,1fr))}.submission-options--one{grid-template-columns:1fr}
.submission-option{display:flex;align-items:flex-start;justify-content:space-between;gap:8px;min-width:0;padding:1px 0}.submission-option__main{display:flex;align-items:flex-start;gap:5px;min-width:0}.submission-option__marker{display:inline-flex;width:1.55em;height:1.55em;align-items:center;justify-content:center;flex:0 0 1.55em;font-weight:700;line-height:1}.submission-option__marker.is-circled{border:1.6px solid #111;border-radius:50%}.submission-option__text{min-width:0}.submission-option__correct-note{font-size:.88em;font-weight:700;white-space:nowrap}
.submission-explanation,.submission-unanswered{font-size:.92em;margin:5px 0 0}
.submission-signatures{display:grid;grid-template-columns:1fr 1fr;gap:30mm;text-align:center;margin-top:18mm;break-inside:avoid}.submission-signatures div{display:grid;gap:4px}.submission-signatures span{font-size:.9em;font-style:italic}
@media(max-width:767px){.quick-submission-row{flex-direction:column;align-items:stretch}.quick-submission-row__actions{display:grid;grid-template-columns:1fr}.submission-sheet{padding:16px;box-shadow:none}.submission-meta{grid-template-columns:1fr}.submission-options--four,.submission-options--two{grid-template-columns:1fr}.submission-legend{display:grid;gap:4px}}

/* V2-06.8C WB06 — graded submission reuses V2-06.7 printable-test engine */
.print-graded-meta{display:grid;grid-template-columns:1fr 1fr;gap:5px 18px;text-align:left;margin-top:14px;padding-top:10px;border-top:1px solid #bbb}
.print-question__title{position:relative;padding-right:48px}
.print-result{position:absolute;right:0;top:0;font-size:.9em;font-weight:700}
.print-graded-option{display:flex;align-items:flex-start;gap:6px;min-width:0;position:relative}
.print-option-id{display:inline-flex;align-items:center;justify-content:center;flex:0 0 1.5em;width:1.5em;height:1.5em;font-weight:700;line-height:1}
.print-option-id.is-circled{border:1.6px solid currentColor;border-radius:50%}
.print-correct-mark{font-weight:900;margin-left:2px}
.print-explanation{font-size:.92em;margin-top:6px!important}
.print-graded-signatures{display:grid;grid-template-columns:1fr 1fr;gap:30mm;text-align:center;margin-top:18mm;break-inside:avoid}
.print-graded-signatures div{display:grid;gap:4px}.print-graded-signatures span{font-size:.9em;font-style:italic}
@media(max-width:767px){.print-graded-meta{grid-template-columns:1fr}}