/* Riddle Up — Quiz categories page
   Same grouped-taxonomy pattern as the Riddles Categories page (see
   riddles-categories.css), tiles link through to a 10-question quiz
   instead of a riddle listing. Uses the `--surface-*` dark-theme-safe
   tokens defined in ../site.css (loaded sitewide). Loaded only on this
   page via QuizController@categories (see \Assets::add). */

.qc-hero {
    background: linear-gradient(120deg, rgba(var(--indigo-rgb), .07), rgba(var(--teal-rgb), .06));
}

.qc-hero-subtitle {
    color: var(--body-color);
    opacity: .7;
    font-size: .95rem;
    max-width: 46rem;
}

/* Jump-to-group chip nav */
.qc-chip {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    padding: .4rem .9rem;
    border-radius: 50rem;
    font-size: .8125rem;
    font-weight: 600;
    text-decoration: none;
    border: 1px solid var(--border-color);
    background: var(--surface-bg);
    color: var(--body-color);
    transition: background-color .15s ease, border-color .15s ease, color .15s ease;
}

.qc-chip:hover {
    text-decoration: none;
    border-color: rgba(var(--qc-accent-rgb), .45);
    color: rgb(var(--qc-accent-rgb));
}

.qc-chip-count {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 1.35rem;
    height: 1.35rem;
    padding: 0 .35rem;
    border-radius: 50rem;
    background: rgba(var(--qc-accent-rgb), .12);
    color: rgb(var(--qc-accent-rgb));
    font-size: .75rem;
}

/* Group sections */
.qc-group {
    padding: 1.5rem 1.5rem 1.75rem;
    border-radius: 1rem;
    background: rgba(var(--qc-accent-rgb), .04);
    border: 1px solid rgba(var(--qc-accent-rgb), .14);
    scroll-margin-top: 5.5rem;
}

.qc-group-header {
    margin-bottom: 1.25rem;
}

.qc-group-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.25rem;
    height: 2.25rem;
    flex-shrink: 0;
    border-radius: .75rem;
    background: rgba(var(--qc-accent-rgb), .14);
    color: rgb(var(--qc-accent-rgb));
    font-size: 1.05rem;
}

.qc-group-title {
    letter-spacing: -.01em;
}

/* Accent variants, applied per group and its chip/icon */
.qc-group--indigo, .qc-chip--indigo { --qc-accent-rgb: var(--indigo-rgb); }
.qc-group--teal, .qc-chip--teal { --qc-accent-rgb: var(--teal-rgb); }
.qc-group--amber, .qc-chip--amber { --qc-accent-rgb: var(--warning-rgb); }
.qc-group--pink, .qc-chip--pink { --qc-accent-rgb: var(--pink-rgb); }

/* Category tiles */
.qc-card {
    position: relative;
    display: flex;
    align-items: center;
    gap: .875rem;
    padding: 1rem 2.25rem 1rem 1rem;
    border-radius: .9rem;
    border: 1px solid var(--border-color);
    background: var(--surface-bg);
    color: var(--body-color);
    transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}

a.qc-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--surface-hover-shadow);
    border-color: rgba(var(--qc-accent-rgb), .4);
    color: var(--body-color);
}

.qc-card-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    flex-shrink: 0;
    border-radius: .7rem;
    background: rgba(var(--qc-accent-rgb), .12);
    color: rgb(var(--qc-accent-rgb));
    font-size: 1.1rem;
}

.qc-card-body {
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.qc-card-title {
    font-weight: 600;
    font-size: .925rem;
    line-height: 1.3;
}

.qc-card-count {
    font-size: .8125rem;
    color: var(--body-color);
    opacity: .6;
}

.qc-card-arrow {
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    opacity: 0;
    color: rgb(var(--qc-accent-rgb));
    transition: opacity .15s ease, right .15s ease;
}

a.qc-card:hover .qc-card-arrow {
    opacity: 1;
    right: .85rem;
}

.qc-card--empty {
    background: var(--surface-muted-bg);
    border-style: dashed;
    opacity: .65;
}

.qc-card--empty .qc-card-icon {
    background: var(--surface-divider);
    color: var(--body-color);
    opacity: .5;
}

.qc-card-count--empty {
    font-style: italic;
}

@media (max-width: 575.98px) {
    .qc-group {
        padding: 1.25rem 1rem 1.5rem;
    }
}