.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px;margin-top:14px}
.card{display:block;border:1px solid rgba(255,255,255,.12);border-radius:12px;padding:14px;text-decoration:none;color:inherit;background:rgba(255,255,255,.02)}
.card:hover{border-color:rgba(255,255,255,.25);background:rgba(255,255,255,.04)}
.card h3{margin:0 0 8px 0}
.muted{opacity:.8}
.demo-grid{min-height:360px;border:1px dashed rgba(255,255,255,.25);border-radius:4px;padding:10px}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.panel{border:1px solid rgba(255,255,255,.12);border-radius:12px;padding:12px;margin:14px 0;background:rgba(255,255,255,.02)}

.abgrid-image { width: 160px; height:100px; }
div#demo-md-master .abgrid-image, div#demo-subgrid .abgrid-image{ width: 80px; height:50px; }

/* по умолчанию код свернут */
.card > .code {
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    margin-top: 0;
    transition: max-height .3s ease, opacity .2s ease, margin-top .2s ease;
}

/* когда карточка раскрыта */
.card.open > .code {
    max-height: 2700px; /* большой запас */
    opacity: 1;
    margin-top: 8px;
}

/* чтобы было видно что заголовок кликабельный */
.card > .card__title {
    cursor: pointer;
    user-select: none;
}

/* маленькая стрелочка справа */
.card > .card__title::after {
    content: "▼";
    float: right;
    transition: transform .2s ease;
}

.card.open > .card__title::after {
    transform: rotate(180deg);
}


.forum-alert{margin:12px 0;padding:12px 14px;border-radius:10px}
.forum-alert--error{background:rgba(255,80,80,.12);border:1px solid rgba(255,80,80,.35)}
.forum-upload-hint{margin-top:6px;font-size:.92em}
.forum-attachments{display:flex;flex-wrap:wrap;gap:12px;margin-top:12px}
.forum-attachment{display:flex;flex-direction:column;gap:8px;width:180px;text-decoration:none;color:inherit}
.forum-attachment img{display:block;width:180px;height:120px;object-fit:cover;border-radius:10px;border:1px solid rgba(255,255,255,.14);background:rgba(255,255,255,.03)}
.forum-attachment span{font-size:.9em;word-break:break-word}

.forum-page{max-width:1100px;margin:0 auto}
.forum-topbar{margin-bottom:12px}
.forum-header{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:14px}
.forum-topic-header{margin-top:8px}
.forum-create-card,.forum-reply-card{margin:14px 0}
.forum-board{border:1px solid rgba(255,255,255,.12);border-radius:14px;overflow:hidden;background:rgba(255,255,255,.02)}
.forum-board__head,.forum-board__row{display:grid;grid-template-columns:minmax(280px,1.8fr) 90px 110px minmax(220px,1.2fr);gap:16px;align-items:center;padding:14px 16px}
.forum-board__head{background:rgba(255,255,255,.06);font-weight:600}
.forum-board__row{border-top:1px solid rgba(255,255,255,.08);text-decoration:none;color:inherit}
.forum-board__row:hover{background:rgba(255,255,255,.03)}
.forum-board__head--topics,.forum-board__row--topic{grid-template-columns:minmax(280px,1.7fr) 160px 80px 90px minmax(220px,1.1fr)}
.forum-board__title{font-weight:700;text-decoration:none;color:inherit}
.forum-board__num{text-align:center;font-weight:600}
.forum-board__last{display:flex;flex-direction:column;gap:4px;align-items:flex-start}
.forum-topic-line{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.forum-badge{display:inline-flex;align-items:center;padding:2px 8px;border-radius:999px;border:1px solid rgba(255,255,255,.16);font-size:.85em;background:rgba(255,255,255,.04)}
.forum-badge--pinned{border-color:rgba(255,210,90,.45);background:rgba(255,210,90,.12)}
.forum-post{display:grid;grid-template-columns:180px 1fr;gap:0;margin:12px 0;border:1px solid rgba(255,255,255,.12);border-radius:14px;overflow:hidden;background:rgba(255,255,255,.02)}
.forum-post__author{padding:16px;border-right:1px solid rgba(255,255,255,.08);background:rgba(255,255,255,.03)}
.forum-post__username{font-weight:700;word-break:break-word}
.forum-post__body{padding:16px}
.forum-post__meta{display:flex;gap:8px;align-items:center;margin-bottom:10px}
.forum-post__text{white-space:pre-wrap;line-height:1.5}
@media (max-width: 900px){
  .forum-board__head,.forum-board__row,.forum-board__head--topics,.forum-board__row--topic{grid-template-columns:1fr}
  .forum-post{grid-template-columns:1fr}
  .forum-post__author{border-right:0;border-bottom:1px solid rgba(255,255,255,.08)}
}

.forum-pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin: 18px 0 22px;
    flex-wrap: wrap;
}

.forum-pagination .btn {
    min-width: 110px;
    text-align: center;
}

.forum-pagination .muted {
    white-space: nowrap;
    font-size: 14px;
}

.forum-upload-hint {
    margin-top: 6px;
    font-size: 13px;
}

.forum-alert {
    margin: 14px 0 18px;
    padding: 12px 14px;
    border-radius: 10px;
    font-size: 14px;
}

.forum-alert--error {
    background: rgba(220, 53, 69, 0.10);
    border: 1px solid rgba(220, 53, 69, 0.25);
    color: #b42318;
}

.forum-badge--pinned {
    background: rgba(255, 193, 7, 0.16);
    border: 1px solid rgba(255, 193, 7, 0.35);
}

.forum-pagination .btn{
    min-width:36px;
    padding:6px 10px;
}
.forum-search-form{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin:0 0 14px}
.forum-search-form__input{flex:1 1 320px;min-width:240px}
.forum-search-header{margin-top:2px}
.forum-badge--category{border-color:rgba(120,180,255,.3);background:rgba(120,180,255,.12)}

.forum-search {
    margin-bottom: 20px;
}

.forum-search form {
    display: flex;
    gap: 10px;
}

.forum-search input {
    flex: 1;
    padding: 6px 10px;
}

.forum-search button {
    padding: 6px 14px;
}