.forum-board-page {
    padding-top: 112px;
    padding-bottom: 64px;
    min-height: 76vh;
    background:
        radial-gradient(circle at 6% 0%, rgba(37, 99, 235, 0.12), transparent 34%),
        radial-gradient(circle at 96% 8%, rgba(16, 185, 129, 0.1), transparent 32%),
        linear-gradient(180deg, #f4f8ff 0%, #eef4fb 100%);
}

.forum-board-header {
    background: linear-gradient(140deg, #ffffff 0%, #f4f8ff 58%, #edf7f3 100%);
    border: 1px solid #d2e2f4;
    border-radius: 18px;
    padding: 28px;
    margin-bottom: 18px;
    box-shadow: 0 24px 34px -30px rgba(15, 23, 42, 0.42);
}

.forum-board-header h2 {
    margin-bottom: 6px;
    color: #0f172a;
}

.forum-auth-state {
    display: inline-flex;
    margin-top: 10px;
    color: #1e3a8a;
    background: #eff6ff;
    border: 1px solid #bfdbfe;
    border-radius: 999px;
    padding: 6px 10px;
    font-weight: 700;
}

.forum-board-layout {
    display: grid;
    grid-template-columns: minmax(260px, 330px) minmax(0, 1fr);
    gap: 18px;
    align-items: start;
}

.forum-sidebar,
.forum-main,
.forum-topic-view {
    background: rgba(255, 255, 255, 0.96);
    border: 1px solid #d6e2f0;
    border-radius: 16px;
    padding: 18px;
    box-shadow: 0 22px 34px -32px rgba(15, 23, 42, 0.45);
}

.forum-sidebar h3,
.forum-main h4,
.forum-topic-view h4 {
    color: #0f172a;
}

.forum-category-list,
.forum-cells,
.forum-topic-list,
.forum-post-list {
    display: grid;
    gap: 10px;
}

.forum-category-block {
    border: 1px solid #dbe6f4;
    border-radius: 14px;
    padding: 12px;
    background: linear-gradient(180deg, #fbfdff 0%, #f7faff 100%);
}

.forum-category-block h4 {
    color: #0f172a;
    margin-bottom: 4px;
}

.forum-category-block p,
.forum-cell span,
.forum-cell small,
.forum-topic-meta,
.forum-post-meta {
    color: #64748b;
}

.forum-category-block p {
    margin-bottom: 10px;
    font-size: 0.9rem;
}

.forum-cell,
.forum-topic-item,
.forum-post-item {
    border: 1px solid #d6e2f0;
    border-radius: 14px;
    background: #ffffff;
    box-shadow: 0 16px 24px -26px rgba(15, 23, 42, 0.45);
}

.forum-cell {
    width: 100%;
    padding: 12px;
    text-align: left;
    color: #1e293b;
    cursor: pointer;
    transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}

.forum-cell strong,
.forum-cell span,
.forum-cell small {
    display: block;
}

.forum-cell:hover,
.forum-topic-item:hover {
    border-color: #93c5fd;
    background: #f0f7ff;
    transform: translateY(-1px);
    box-shadow: 0 20px 28px -28px rgba(30, 64, 175, 0.65);
}

.forum-selected-meta {
    margin-bottom: 12px;
    color: #1e3a8a;
    background: #eff6ff;
    border: 1px solid #bfdbfe;
    border-radius: 12px;
    padding: 10px 12px;
    font-weight: 800;
}

.forum-feedback {
    border-radius: 10px;
    padding: 10px;
    margin-bottom: 10px;
}

.forum-feedback.error {
    background: #fef2f2;
    border: 1px solid #fecaca;
    color: #991b1b;
}

.forum-feedback.success {
    background: #ecfdf5;
    border: 1px solid #a7f3d0;
    color: #065f46;
}

.forum-form {
    display: grid;
    gap: 10px;
    margin-bottom: 16px;
    padding: 14px;
    border-radius: 14px;
    border: 1px solid #d6e2f0;
    background: linear-gradient(180deg, #f8fbff 0%, #f2f7ff 100%);
}

.forum-form label {
    color: #334155;
    font-weight: 700;
}

.forum-form input,
.forum-form textarea,
.forum-form select {
    width: 100%;
    margin-top: 6px;
    padding: 10px;
    border-radius: 10px;
    border: 1px solid #cbd5e1;
    background: #ffffff;
}

.forum-form input:focus,
.forum-form textarea:focus,
.forum-form select:focus {
    border-color: #60a5fa;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.18);
    outline: none;
}

.forum-topic-item {
    padding: 13px;
    text-align: left;
}

.forum-topic-head,
.forum-topic-toolbar,
.forum-post-meta {
    display: flex;
    justify-content: space-between;
    gap: 10px;
}

.forum-topic-head {
    align-items: flex-start;
    margin-bottom: 6px;
}

.forum-topic-status {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    border-radius: 999px;
    padding: 3px 9px;
    font-size: 0.82rem;
    font-weight: 800;
}

.forum-topic-status-open {
    color: #065f46;
    background: #ecfdf5;
    border: 1px solid #a7f3d0;
}

.forum-topic-status-closed {
    color: #991b1b;
    background: #fef2f2;
    border: 1px solid #fecaca;
}

.forum-topic-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 0.82rem;
}

.forum-topic-toolbar {
    align-items: center;
    margin: 10px 0 14px;
}

.forum-topic-toolbar-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.forum-post-item {
    padding: 12px;
    background: linear-gradient(180deg, #fbfdff 0%, #f6faff 100%);
}

.forum-post-content {
    color: #0f172a;
    white-space: pre-wrap;
    word-break: break-word;
}

.forum-topic-delete,
#forum-delete-forum {
    border: 1px solid #fecaca;
    background: #fff1f2;
    color: #991b1b;
    border-radius: 10px;
    padding: 8px 10px;
    font-size: 0.82rem;
    font-weight: 800;
    cursor: pointer;
}

.forum-topic-delete:hover,
#forum-delete-forum:hover {
    background: #ffe4e6;
}

.forum-topic-inline-reply {
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px dashed #c7d9f3;
    display: grid;
    gap: 8px;
}

.forum-topic-inline-reply textarea {
    min-height: 84px;
}

.forum-topic-inline-reply .btn-primary {
    justify-self: start;
}

.forum-topic-reply-hint {
    margin-top: 10px;
    margin-bottom: 0;
    font-size: 0.86rem;
    font-weight: 800;
}

.forum-topic-reply-hint-closed {
    color: #92400e;
    background: #fffbeb;
    border: 1px solid #fde68a;
    border-radius: 10px;
    padding: 8px 10px;
}

.forum-topic-reply-hint-closed i {
    margin-right: 6px;
}

.btn-secondary {
    border: 1px solid #cbd5e1;
    background: #ffffff;
    color: #1e293b;
    border-radius: 10px;
    padding: 8px 12px;
    cursor: pointer;
    font-weight: 800;
    transition: border-color 0.18s ease, background 0.18s ease;
}

.btn-secondary:hover {
    border-color: #93c5fd;
    background: #eff6ff;
}

.hidden {
    display: none !important;
}

@media (max-width: 980px) {
    .forum-board-layout {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 700px) {
    .forum-board-page {
        padding-top: 98px;
        padding-bottom: 44px;
    }

    .forum-board-header,
    .forum-sidebar,
    .forum-main,
    .forum-topic-view {
        border-radius: 14px;
        padding: 14px;
    }

    .forum-topic-head,
    .forum-post-meta,
    .forum-topic-toolbar {
        flex-direction: column;
        align-items: flex-start;
    }

    .forum-topic-toolbar-actions,
    .forum-topic-toolbar-actions button {
        width: 100%;
    }
}