/* quiz-discovery.css — Discovery, listing, detail, favourites, history */

:root {
    --sqd-bg:       #ffffff;
    --sqd-surface:  #f8fafc;
    --sqd-border:   #e2e8f0;
    --sqd-text:     #1e293b;
    --sqd-muted:    #64748b;
    --sqd-primary:  #2563eb;
    --sqd-primary-h: #1d4ed8;
    --sqd-radius:   0.75rem;
    --sqd-shadow:   0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.04);
    --sqd-gutter:   1rem;
}

:root[data-sq-theme="dark"] {
    --sqd-bg:      #0f172a;
    --sqd-surface: #1e293b;
    --sqd-border:  #334155;
    --sqd-text:    #f1f5f9;
    --sqd-muted:   #94a3b8;
    --sqd-primary: #3b82f6;
    --sqd-primary-h:#2563eb;
}

/* ── Wrapper ── */
.sqd-wrap {
    max-width: 900px;
    margin: 0 auto;
    padding: 1.5rem var(--sqd-gutter);
    color: var(--sqd-text);
    background: var(--sqd-bg);
}

/* ── Page header ── */
.sqd-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.sqd-page-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0;
    flex: 1;
    color: var(--sqd-text);
}

/* ── Filter bar ── */
.sqd-filter-bar {
    display: flex;
    gap: .5rem;
    flex-wrap: wrap;
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: var(--sqd-surface);
    border: 1px solid var(--sqd-border);
    border-radius: var(--sqd-radius);
}

.sqd-filter-search,
.sqd-filter-select {
    padding: .5rem .75rem;
    border: 1px solid var(--sqd-border);
    border-radius: .5rem;
    font-size: .9rem;
    background: var(--sqd-bg);
    color: var(--sqd-text);
    min-width: 0;
}

.sqd-filter-search { flex: 1; min-width: 140px; }
.sqd-filter-select { flex: 0 0 auto; }

/* ── Cards grid ── */
.sqd-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.sqd-card {
    background: var(--sqd-surface);
    border: 1px solid var(--sqd-border);
    border-radius: var(--sqd-radius);
    box-shadow: var(--sqd-shadow);
    transition: box-shadow .15s ease;
}

.sqd-card:hover { box-shadow: 0 4px 12px rgba(0,0,0,.12); }

.sqd-card-link {
    display: flex;
    flex-direction: column;
    padding: 1rem;
    text-decoration: none;
    color: var(--sqd-text);
    height: 100%;
    gap: .5rem;
}

.sqd-card-title {
    font-size: 1rem;
    font-weight: 600;
    margin: 0;
    line-height: 1.4;
    color: var(--sqd-text);
}

.sqd-card-body { display: flex; flex-direction: column; gap: .4rem; flex: 1; }

.sqd-card-meta {
    display: flex;
    gap: .5rem;
    flex-wrap: wrap;
    font-size: .78rem;
    color: var(--sqd-muted);
    border-top: 1px solid var(--sqd-border);
    padding-top: .5rem;
    margin-top: auto;
}

/* ── Category thumbnail ── */
.sqd-card--with-thumb .sqd-card-link { padding-top: 0; }

.sqd-card-thumb {
    --sqd-thumb-h: 160px;
    width: 100%;
    height: var(--sqd-thumb-h);
    overflow: hidden;
    border-radius: var(--sqd-radius) var(--sqd-radius) 0 0;
    flex-shrink: 0;
}

/* Quiz cards: same height as category cards */
.sqd-card-thumb--quiz { --sqd-thumb-h: 160px; }

.sqd-card-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.sqd-card-desc {
    font-size: .85rem;
    color: var(--sqd-muted);
    margin: 0;
    line-height: 1.45;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ── Badges ── */
.sqd-badge {
    display: inline-block;
    font-size: .72rem;
    padding: .15rem .5rem;
    border-radius: 9999px;
    font-weight: 500;
    background: var(--sqd-border);
    color: var(--sqd-muted);
}

.sqd-badge-cat { background: #dbeafe; color: #1e40af; }
:root[data-sq-theme="dark"] .sqd-badge-cat { background: #1e3a5f; color: #93c5fd; }

.sqd-diff-easy   { background: #d1fae5; color: #065f46; }
.sqd-diff-medium { background: #fef3c7; color: #92400e; }
.sqd-diff-hard   { background: #fee2e2; color: #991b1b; }
:root[data-sq-theme="dark"] .sqd-diff-easy   { background: #064e3b; color: #6ee7b7; }
:root[data-sq-theme="dark"] .sqd-diff-medium { background: #78350f; color: #fcd34d; }
:root[data-sq-theme="dark"] .sqd-diff-hard   { background: #7f1d1d; color: #fca5a5; }

.sqd-badge-status-completed { background: #d1fae5; color: #065f46; }
.sqd-badge-status-expired   { background: #fee2e2; color: #991b1b; }
:root[data-sq-theme="dark"] .sqd-badge-status-completed { background: #064e3b; color: #6ee7b7; }
:root[data-sq-theme="dark"] .sqd-badge-status-expired   { background: #7f1d1d; color: #fca5a5; }

/* ── Buttons ── */
.sqd-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: .6rem 1.25rem;
    border-radius: .5rem;
    font-size: .9rem;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
    border: none;
    transition: background .15s ease;
    color: inherit;
}

.sqd-btn-primary { background: var(--sqd-primary); color: #fff; }
.sqd-btn-primary:hover { background: var(--sqd-primary-h); color: #fff; }
.sqd-btn-secondary {
    background: var(--sqd-surface);
    color: var(--sqd-text);
    border: 1px solid var(--sqd-border);
}
.sqd-btn-secondary:hover { background: var(--sqd-border); }
.sqd-btn-sm { padding: .4rem .9rem; font-size: .82rem; }
.sqd-btn-lg { padding: .8rem 2rem; font-size: 1rem; }

/* ── Pagination ── */
.sqd-pagination {
    display: flex;
    gap: .4rem;
    flex-wrap: wrap;
    justify-content: center;
    margin-top: 1.5rem;
}

.sqd-page-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.25rem;
    height: 2.25rem;
    border-radius: .4rem;
    border: 1px solid var(--sqd-border);
    text-decoration: none;
    color: var(--sqd-text);
    font-size: .88rem;
    background: var(--sqd-surface);
}

.sqd-page-active {
    background: var(--sqd-primary);
    color: #fff;
    border-color: var(--sqd-primary);
}

/* ── Empty state ── */
.sqd-empty {
    text-align: center;
    color: var(--sqd-muted);
    padding: 3rem 1rem;
    font-size: .95rem;
}

/* ── Detail page ── */
.sqd-detail { max-width: 900px; }

.sqd-breadcrumb {
    font-size: .83rem;
    color: var(--sqd-muted);
    margin-bottom: 1.25rem;
}

.sqd-breadcrumb a { color: var(--sqd-primary); text-decoration: none; }

.sqd-detail-header {
    margin-bottom: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: .75rem;
}

.sqd-detail-title {
    font-size: 1.6rem;
    font-weight: 700;
    margin: 0;
    color: var(--sqd-text);
}

.sqd-detail-badges { display: flex; flex-wrap: wrap; gap: .4rem; }

.sqd-fav-btn {
    display: inline-flex;
    align-items: center;
    gap: .4rem;
    padding: .45rem .9rem;
    border-radius: .5rem;
    border: 1px solid var(--sqd-border);
    background: var(--sqd-surface);
    color: var(--sqd-muted);
    font-size: .85rem;
    cursor: pointer;
    transition: all .15s ease;
    align-self: flex-start;
}

.sqd-fav-btn:hover { border-color: #f43f5e; color: #f43f5e; }
.sqd-fav-active { background: #fff1f2; border-color: #f43f5e; color: #be123c; }
:root[data-sq-theme="dark"] .sqd-fav-active { background: #4c0519; border-color: #f43f5e; color: #fda4af; }

.sqd-detail-desc {
    color: var(--sqd-text);
    line-height: 1.65;
    margin-bottom: 1.25rem;
}

.sqd-detail-info {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: .75rem;
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: var(--sqd-surface);
    border: 1px solid var(--sqd-border);
    border-radius: var(--sqd-radius);
}

.sqd-detail-info-row dt { font-size: .78rem; color: var(--sqd-muted); text-transform: uppercase; letter-spacing: .04em; }
.sqd-detail-info-row dd { font-size: 1.1rem; font-weight: 600; margin: .1rem 0 0; color: var(--sqd-text); }

.sqd-detail-actions { display: flex; gap: .75rem; flex-wrap: wrap; }

/* ── History ── */
.sqd-history-list { display: flex; flex-direction: column; gap: .75rem; margin-bottom: 1.5rem; }

.sqd-history-row {
    display: flex;
    flex-direction: column;
    gap: .4rem;
    padding: 1rem;
    background: var(--sqd-surface);
    border: 1px solid var(--sqd-border);
    border-radius: var(--sqd-radius);
}

.sqd-history-title a { color: var(--sqd-primary); text-decoration: none; font-weight: 500; }
.sqd-history-meta { display: flex; gap: .6rem; flex-wrap: wrap; align-items: center; font-size: .83rem; }
.sqd-history-score { font-weight: 600; color: var(--sqd-text); }
.sqd-text-muted { color: var(--sqd-muted); }

/* ── Quiz hub ── */
.sqd-sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    margin: -1px;
    padding: 0;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.sqd-hub-heading { font-size: 1.2rem; margin: 1.5rem 0 .75rem; }

.sqd-hub-cats {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
    gap: .75rem;
}

.sqd-hub-cat {
    display: flex;
    align-items: center;
    gap: .75rem;
    background: var(--sqd-surface);
    border: 1px solid var(--sqd-border);
    border-radius: var(--sqd-radius);
    padding: .9rem;
    box-shadow: var(--sqd-shadow);
    color: var(--sqd-text);
    text-decoration: none;
    transition: .15s;
}
.sqd-hub-cat:hover { border-color: var(--sqd-primary); transform: translateY(-2px); text-decoration: none; }
.sqd-hub-cat b { display: block; line-height: 1.2; }

.sqd-hub-ic {
    flex: none;
    font-size: 1.4rem;
    width: 2.6rem;
    height: 2.6rem;
    display: grid;
    place-items: center;
    border-radius: .6rem;
    color: var(--c);
    background: color-mix(in srgb, var(--c) 18%, transparent);
    overflow: hidden;
}
.sqd-hub-ic img { width: 100%; height: 100%; object-fit: cover; }

.sqd-hub-count { font-size: .78rem; font-weight: 400; color: var(--sqd-muted); }

.sqd-hub-tools {
    display: flex;
    flex-wrap: wrap;
    gap: .5rem;
    margin: 1.5rem 0 1rem;
}
.sqd-hub-tools input[type="search"],
.sqd-hub-tools select {
    padding: .6rem .8rem;
    border: 1px solid var(--sqd-border);
    border-radius: .5rem;
    background: var(--sqd-surface);
    color: var(--sqd-text);
    font: inherit;
    max-width: 100%;
}
.sqd-hub-search { flex: 1 1 240px; }

.sqd-hub-list { list-style: none; margin: 0; padding: 0; display: grid; gap: .6rem; }

.sqd-hub-row {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: .75rem;
    align-items: center;
    background: var(--sqd-surface);
    border: 1px solid var(--sqd-border);
    border-radius: var(--sqd-radius);
    padding: .8rem 1rem;
}
.sqd-hub-row:hover { border-color: var(--sqd-primary); }
.sqd-hub-row h3 { font-size: 1rem; margin: 0 0 .25rem; }
.sqd-hub-row h3 a { color: var(--sqd-text); text-decoration: none; }
.sqd-hub-row h3 a:hover { color: var(--sqd-primary); }

.sqd-hub-actions { display: flex; align-items: center; gap: .5rem; }

.sqd-hub-meta { display: flex; flex-wrap: wrap; gap: .4rem .9rem; font-size: .82rem; color: var(--sqd-muted); }

.sqd-hub-chip {
    background: color-mix(in srgb, var(--sqd-primary) 12%, transparent);
    color: var(--sqd-primary);
    border-radius: 99px;
    padding: 0 .55rem;
}

.sqd-hub-go {
    background: var(--sqd-primary);
    color: #fff;
    border-radius: .5rem;
    padding: .45rem .9rem;
    font-size: .9rem;
    text-decoration: none;
    text-align: center;
}
.sqd-hub-go:hover { background: var(--sqd-primary-h); color: #fff; text-decoration: none; }

.sqd-page-gap { align-self: center; color: var(--sqd-muted); }

.sqd-hub-section { margin: 1.5rem 0; }
.sqd-hub-section-head {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    border-bottom: 1px solid var(--sqd-border);
    padding-bottom: .4rem;
    margin-bottom: .7rem;
}
.sqd-hub-section-head h2 { margin: 0; font-size: 1.2rem; }

@media (max-width: 480px) {
    .sqd-hub-row { grid-template-columns: 1fr; }
    .sqd-hub-actions { justify-content: stretch; }
    .sqd-hub-go { flex: 1; }
}