/* ── Test tasks — styles ──────────────────────────────────────
   Used on: /knowledge/test-tasks/
   No external dependencies.
   ──────────────────────────────────────────────────────────── */

/* ── Filters ─────────────────────────────────────────────── */

.tt-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1.5rem;
    padding: 1rem 1.25rem;
    background: #fafafa;
    border: 1px solid #e8e8e8;
    border-radius: 8px;
    align-items: flex-end;
}

.tt-filter-item {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.tt-filter-item > label {
    font-size: 0.7rem;
    font-weight: 600;
    color: #999;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.tt-filter-item select,
.tt-filter-item input[type="text"] {
    padding: 0.4rem 0.65rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 0.85rem;
    font-family: inherit;
    background: #fff;
    color: #1a1a1a;
    outline: none;
    transition: border-color 0.15s;
}

.tt-filter-item select:focus,
.tt-filter-item input[type="text"]:focus {
    border-color: #aaa;
}

.tt-filter-search {
    flex: 1 1 140px;
    min-width: 140px;
}

.tt-filter-search input { width: 100%; }

.tt-filter-check-wrap {
    align-self: flex-end;
    padding-bottom: 0.15rem;
}

.tt-filter-check {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.85rem;
    color: #666;
    cursor: pointer;
    white-space: nowrap;
}

.tt-filter-check input[type="checkbox"] { accent-color: #5a7856; }

/* ── Presets (quick tag chips) ────────────────────────────── */

.tt-presets {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-bottom: 0.75rem;
}

.tt-preset {
    padding: 0.3rem 0.7rem;
    border: 1px solid #ddd;
    border-radius: 20px;
    background: #fff;
    color: #666;
    font-size: 0.78rem;
    font-family: inherit;
    cursor: pointer;
    white-space: nowrap;
    transition: border-color 0.15s, background 0.15s, color 0.15s;
}

.tt-preset:hover {
    border-color: #aaa;
    color: #1a1a1a;
}

.tt-preset--active {
    background: #1a1a1a;
    border-color: #1a1a1a;
    color: #fff;
}

.tt-preset--active:hover {
    background: #333;
    border-color: #333;
}

/* ── Counter ─────────────────────────────────────────────── */

.tt-counter {
    font-size: 0.78rem;
    color: #999;
    margin-bottom: 1rem;
}

.tt-counter strong { color: #666; }

/* ── Cards grid ──────────────────────────────────────────── */

.tt-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.25rem;
    margin-bottom: 2rem;
}

.tt-card {
    background: #fafafa;
    border: 1px solid #e0e0e0;
    border-radius: 6px;
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    transition: border-color 0.15s;
}

.tt-card:hover { border-color: #999; }

.tt-card-header {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    margin-bottom: 0.65rem;
}

.tt-card-title {
    font-size: 0.95rem;
    font-weight: 500;
    color: #1a1a1a;
    line-height: 1.4;
    flex: 1;
}

.tt-card-position {
    font-size: 0.78rem;
    color: #777;
    line-height: 1.4;
    margin-top: -0.3rem;
    margin-bottom: 0.4rem;
}

.tt-card-position--unknown {
    font-style: italic;
    opacity: 0.7;
}

/* ── Badges ──────────────────────────────────────────────── */

.tt-badge {
    display: inline-block;
    padding: 0.15rem 0.5rem;
    border-radius: 3px;
    font-size: 0.68rem;
    font-weight: 600;
    white-space: nowrap;
    line-height: 1.5;
}

.tt-badge-grade {
    background: #f0f0f0;
    color: #666;
    border: 1px solid #e0e0e0;
}

.tt-badge-grade--intern  { background: #f5f5f5; color: #999; }
.tt-badge-grade--junior  { background: #f2f6f1; color: #5a7856; }
.tt-badge-grade--middle  { background: #e8eef6; color: #3a5a8a; }
.tt-badge-grade--senior  { background: #fdf6ef; color: #8a6a3a; }
.tt-badge-grade--unknown { background: #f5f5f5; color: #bbb; }

.tt-badge-new {
    background: #fef3e2;
    color: #b47a3a;
    border: 1px solid #f0dfc0;
    font-size: 0.62rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.tt-badge-dataset {
    background: #f0f7ef;
    color: #5a7856;
    border: 1px solid #d4e4d0;
    font-size: 0.62rem;
}

/* ── Tags row ────────────────────────────────────────────── */

.tt-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.3rem;
    margin-bottom: 0.75rem;
}

.tt-tag {
    display: inline-block;
    padding: 0.1rem 0.4rem;
    background: #fff;
    border: 1px solid #e8e8e8;
    border-radius: 3px;
    font-size: 0.68rem;
    color: #888;
}

/* ── Card meta & CTA ────────────────────────────────────── */

.tt-card-meta {
    display: flex;
    gap: 0.4rem;
    flex-wrap: wrap;
    margin-bottom: 0.75rem;
}

.tt-card-cta {
    margin-top: auto;
}

.tt-card-btn {
    display: inline-block;
    padding: 0.4rem 0.85rem;
    border: 1px solid #2563eb;
    background: #2563eb;
    color: #fff;
    text-decoration: none;
    border-radius: 3px;
    font-size: 0.82rem;
    font-family: inherit;
    transition: background 0.15s;
}

.tt-card-btn:hover { background: #1d4ed8; }

.tt-card-link-hint {
    font-size: 0.65rem;
    color: #aaa;
    margin-top: 0.25rem;
}

/* ── Empty state ─────────────────────────────────────────── */

.tt-empty {
    padding: 2rem;
    text-align: center;
    color: #999;
    font-size: 0.9rem;
    border: 1px solid #e8e8e8;
    border-radius: 8px;
    background: #fafafa;
}

/* ── Responsive ──────────────────────────────────────────── */

@media (max-width: 639px) {
    .tt-filters { gap: 0.65rem; padding: 0.75rem; }
    .tt-filter-item { flex: 1 1 calc(50% - 0.5rem); }
    .tt-filter-check-wrap { flex: 1 1 100%; }
    .tt-grid { grid-template-columns: 1fr; }
    .tt-card-title { font-size: 0.88rem; }
}