:root {
    --glass-bg: rgba(255, 255, 255, 0.55);
    --glass-bg-hover: rgba(255, 255, 255, 0.72);
    --glass-bg-strong: rgba(255, 255, 255, 0.78);
    --glass-blur: 18px;
    --glass-blur-strong: 24px;
    --glass-border: rgba(255, 255, 255, 0.45);
    --glass-border-subtle: rgba(255, 255, 255, 0.3);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.08), 0 2px 8px rgba(0, 0, 0, 0.04);
    --glass-shadow-lg: 0 12px 48px rgba(0, 0, 0, 0.12), 0 4px 16px rgba(0, 0, 0, 0.06);
    --glass-shadow-hover: 0 12px 40px rgba(0, 0, 0, 0.12), 0 4px 12px rgba(0, 0, 0, 0.06);
    --glass-radius: 14px;
    --glass-radius-lg: 18px;
    --glass-radius-sm: 10px;
    --glass-inset-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.5);
}

.modernforum {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: var(--glass-radius-lg);
    box-shadow: var(--glass-shadow), var(--glass-inset-shadow);
    padding: 28px;
    transition: box-shadow 0.3s ease;
}

.forum-header {
    margin-bottom: 28px;
}

.forum-stats-bar {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: var(--glass-radius);
    box-shadow: var(--glass-shadow), var(--glass-inset-shadow);
    padding: 18px 24px;
    transition: box-shadow 0.3s ease, background 0.3s ease;
}

.forum-stats-bar:hover {
    box-shadow: var(--glass-shadow-hover);
    background: var(--glass-bg-hover);
}

.category-card,
.category-block {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: var(--glass-radius);
    box-shadow: var(--glass-shadow), var(--glass-inset-shadow);
    overflow: hidden;
    margin-bottom: 20px;
    transition: box-shadow 0.3s ease, transform 0.2s ease;
}

.category-card:hover,
.category-block:hover {
    box-shadow: var(--glass-shadow-hover);
    transform: translateY(-2px);
}

.category-header {
    background: color-mix(in srgb, var(--forum-primary) 85%, transparent);
    backdrop-filter: blur(var(--glass-blur-strong));
    -webkit-backdrop-filter: blur(var(--glass-blur-strong));
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    padding: 18px 22px;
}

.category-title {
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.15);
}

.subforum-item {
    background: transparent;
    border-bottom: 1px solid rgba(255, 255, 255, 0.25);
    padding: 18px 22px;
    transition: background 0.25s ease, transform 0.15s ease;
}

.subforum-item:hover {
    background: var(--glass-bg-hover);
    transform: translateX(4px);
}

.subforum-item:last-child {
    border-bottom: none;
}

.subforum-icon {
    background: var(--glass-bg);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid var(--glass-border);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.topic-list,
.topics-list {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: var(--glass-radius);
    box-shadow: var(--glass-shadow), var(--glass-inset-shadow);
    overflow: hidden;
}

.topic-item,
.topic-row {
    border-bottom: 1px solid rgba(255, 255, 255, 0.25);
    transition: background 0.25s ease, transform 0.15s ease;
}

.topic-item:hover,
.topic-row:hover {
    background: var(--glass-bg-hover);
    transform: translateX(4px);
}

.topic-item:last-child,
.topic-row:last-child {
    border-bottom: none;
}

.posts-list {
    border: 1px solid var(--glass-border);
    border-radius: var(--glass-radius);
    box-shadow: var(--glass-shadow);
    overflow: hidden;
    background: transparent;
}

.post-item {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border-bottom: 1px solid rgba(255, 255, 255, 0.3);
    transition: background 0.25s ease;
}

.post-item:hover {
    background: var(--glass-bg-hover);
}

.post-item:last-child {
    border-bottom: none;
}

.post-original {
    background: var(--glass-bg-strong);
    backdrop-filter: blur(var(--glass-blur-strong));
    -webkit-backdrop-filter: blur(var(--glass-blur-strong));
    box-shadow: none;
}

.post-author {
    background: rgba(248, 250, 252, 0.45);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-right: 1px solid rgba(255, 255, 255, 0.3);
}

.post-header {
    background: rgba(248, 250, 252, 0.35);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.25);
}

.author-avatar {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
    border: 2px solid rgba(255, 255, 255, 0.6);
}

.author-avatar-img {
    border: 2px solid rgba(255, 255, 255, 0.6);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.author-role,
.modernforum .author-role,
.modernforum .post-author .author-role,
.modernforum div.author-role {
    background: rgba(100, 116, 139, 0.12) !important;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(100, 116, 139, 0.2);
    border-radius: 6px;
    color: var(--forum-text-muted) !important;
}

.modernforum .btn {
    border-radius: var(--glass-radius-sm);
    transition: all 0.25s ease;
}

.modernforum .btn-primary {
    background: linear-gradient(135deg,
        var(--forum-primary) 0%,
        var(--forum-primary-hover) 100%);
    box-shadow: 0 4px 12px color-mix(in srgb, var(--forum-primary) 30%, transparent);
    border: 1px solid rgba(255, 255, 255, 0.15);
}

.modernforum .btn-primary:hover {
    box-shadow: 0 6px 20px color-mix(in srgb, var(--forum-primary) 40%, transparent);
    transform: translateY(-1px);
}

.modernforum .btn-secondary,
.modernforum a.btn-secondary,
.modernforum button.btn-secondary {
    background: rgba(100, 116, 139, 0.15) !important;
    background-image: none !important;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(100, 116, 139, 0.25) !important;
    color: var(--forum-text) !important;
}

.modernforum .btn-secondary:hover,
.modernforum a.btn-secondary:hover,
.modernforum button.btn-secondary:hover {
    background: rgba(100, 116, 139, 0.25) !important;
    background-image: none !important;
    border-color: rgba(100, 116, 139, 0.4) !important;
    color: var(--forum-text) !important;
}

.modernforum .btn-outline {
    background: rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.5);
}

.modernforum .btn-outline:hover {
    background: rgba(255, 255, 255, 0.5);
    border-color: rgba(255, 255, 255, 0.7);
}

.modernforum .btn-link {
    border-radius: var(--glass-radius-sm);
}

.modernforum .btn-link:hover {
    background: color-mix(in srgb, var(--forum-primary) 8%, transparent);
}

.reply-form-container {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: var(--glass-radius);
    box-shadow: var(--glass-shadow), var(--glass-inset-shadow);
}

.create-topic-container {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: var(--glass-radius);
    box-shadow: var(--glass-shadow), var(--glass-inset-shadow);
}

.edit-form-container {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: var(--glass-radius);
}

.modernforum .form-input,
.modernforum .form-textarea,
.modernforum .form-select,
.modernforum .form-control {
    background: rgba(255, 255, 255, 0.6) !important;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(100, 116, 139, 0.3) !important;
    border-radius: var(--glass-radius-sm);
    transition: all 0.25s ease;
}

.modernforum .form-input:focus,
.modernforum .form-textarea:focus,
.modernforum .form-select:focus,
.modernforum .form-control:focus {
    background: rgba(255, 255, 255, 0.8) !important;
    border-color: var(--forum-primary) !important;
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--forum-primary) 12%, transparent), 0 4px 12px rgba(0, 0, 0, 0.06);
}

.auth-container {
    min-height: 60vh;
}

.auth-card {
    background: var(--glass-bg-strong);
    backdrop-filter: blur(var(--glass-blur-strong));
    -webkit-backdrop-filter: blur(var(--glass-blur-strong));
    border: 1px solid var(--glass-border);
    border-radius: var(--glass-radius-lg);
    box-shadow: var(--glass-shadow-lg), var(--glass-inset-shadow);
}

.auth-header-icon {
    background: linear-gradient(135deg,
        var(--forum-primary) 0%,
        var(--forum-primary-hover) 100%);
    border-radius: var(--glass-radius);
    box-shadow: 0 8px 24px color-mix(in srgb, var(--forum-primary) 30%, transparent);
}

.modernforum .alert {
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border-radius: var(--glass-radius-sm);
}

.modernforum .alert-warning {
    background: rgba(254, 243, 199, 0.7);
    border: 1px solid rgba(252, 211, 77, 0.5);
}

.modernforum .alert-info {
    background: rgba(219, 234, 254, 0.7);
    border: 1px solid rgba(147, 197, 253, 0.5);
}

.modernforum .alert-success {
    background: rgba(209, 250, 229, 0.7);
    border: 1px solid rgba(110, 231, 183, 0.5);
}

.modernforum .alert-danger {
    background: rgba(254, 226, 226, 0.7);
    border: 1px solid rgba(252, 165, 165, 0.5);
}

.modernforum .badge {
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border-radius: 6px;
}

.modernforum .badge-pinned {
    background: rgba(245, 158, 11, 0.85);
    box-shadow: 0 2px 6px rgba(245, 158, 11, 0.3);
}

.modernforum .badge-locked {
    background: rgba(100, 116, 139, 0.85);
    box-shadow: 0 2px 6px rgba(100, 116, 139, 0.3);
}

.profile-header-card {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: var(--glass-radius-lg);
    box-shadow: var(--glass-shadow), var(--glass-inset-shadow);
}

.profile-avatar-img {
    border: 3px solid rgba(255, 255, 255, 0.7);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

.profile-avatar-placeholder {
    box-shadow: 0 8px 24px color-mix(in srgb, var(--forum-primary) 25%, transparent);
    border: 3px solid rgba(255, 255, 255, 0.4);
}

.profile-edit-card,
.profile-signature-card,
.profile-activity-card,
.profile-subscriptions-card {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: var(--glass-radius);
    box-shadow: var(--glass-shadow), var(--glass-inset-shadow);
}

.subscription-bar {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: var(--glass-radius);
    box-shadow: var(--glass-shadow);
}

.btn-subscribe,
.btn-subscribe-inline {
    background: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.5);
    border-radius: 20px;
}

.btn-subscribe:hover,
.btn-subscribe-inline:hover {
    background: color-mix(in srgb, var(--forum-primary) 8%, transparent);
    border-color: var(--forum-primary);
}

.btn-subscribe--active,
.btn-subscribe-inline--active {
    background: color-mix(in srgb, var(--forum-primary) 10%, transparent);
    border-color: var(--forum-primary);
}

.modernforum .thanks-btn {
    background: rgba(255, 255, 255, 0.4);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.5);
}

.modernforum .thanks-btn:hover {
    background: color-mix(in srgb, var(--forum-primary) 8%, transparent);
    border-color: var(--forum-primary);
}

.modernforum .thanks-btn--active {
    background: color-mix(in srgb, var(--forum-primary) 10%, transparent);
    border-color: var(--forum-primary);
}

.modernforum .thanks-display {
    background: rgba(255, 255, 255, 0.4);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.5);
}

.captcha-group {
    background: rgba(248, 250, 252, 0.5);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid var(--glass-border);
    border-radius: var(--glass-radius-sm);
}

.captcha-problem {
    background: rgba(255, 255, 255, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.5);
    border-radius: var(--glass-radius-sm);
}

.captcha-input,
input.captcha-input,
input[type="number"].captcha-input {
    background: rgba(255, 255, 255, 0.6) !important;
    border: 1px solid rgba(100, 116, 139, 0.3) !important;
    border-radius: var(--glass-radius-sm) !important;
}

.captcha-input:focus,
input.captcha-input:focus,
input[type="number"].captcha-input:focus {
    background: rgba(255, 255, 255, 0.8) !important;
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--forum-primary) 12%, transparent) !important;
}

.post-attachments {
    background: rgba(248, 250, 252, 0.4);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border-top: 1px solid rgba(255, 255, 255, 0.3);
}

.attachment-item a {
    background: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.5);
    border-radius: 8px;
    transition: all 0.25s ease;
}

.attachment-item a:hover {
    background: rgba(255, 255, 255, 0.7);
    border-color: var(--forum-primary);
    box-shadow: 0 4px 12px color-mix(in srgb, var(--forum-primary) 12%, transparent);
}

.attachment-upload label {
    background: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 2px dashed rgba(255, 255, 255, 0.5);
    border-radius: var(--glass-radius-sm);
}

.attachment-upload label:hover {
    background: rgba(255, 255, 255, 0.7);
    border-color: var(--forum-primary);
}

.modernforum .modal-overlay {
    background: rgba(0, 0, 0, 0.35);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
}

.modernforum .modal-content {
    background: var(--glass-bg-strong);
    backdrop-filter: blur(var(--glass-blur-strong));
    -webkit-backdrop-filter: blur(var(--glass-blur-strong));
    border: 1px solid var(--glass-border);
    border-radius: var(--glass-radius-lg);
    box-shadow: var(--glass-shadow-lg), var(--glass-inset-shadow);
}

.modernforum .modal-header {
    border-bottom: 1px solid rgba(255, 255, 255, 0.3);
}

.avatar-preview {
    background: rgba(248, 250, 252, 0.5);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 2px dashed rgba(255, 255, 255, 0.5);
}

.login-prompt,
.topic-locked {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: var(--glass-radius);
}

.empty-state {
    padding: 48px 24px;
}

.pagination-nav {
    padding: 16px;
}

.replies-header {
    border-left: 3px solid var(--forum-primary);
    padding-left: 12px;
}

.forum-powered-by {
    border-top: 1px solid rgba(255, 255, 255, 0.3);
    margin-top: 32px;
    padding: 24px 16px;
}

.modernforum .forum-search-input {
    background: rgba(255, 255, 255, 0.5) !important;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(100, 116, 139, 0.3) !important;
    border-radius: var(--glass-radius-sm) !important;
}

.modernforum .forum-search-input:focus {
    background: rgba(255, 255, 255, 0.75) !important;
    border-color: var(--forum-primary) !important;
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--forum-primary) 12%, transparent) !important;
}

.post-modified {
    background: rgba(248, 250, 252, 0.35);
    border-top: 1px solid rgba(255, 255, 255, 0.25);
}

.selected-files li {
    background: rgba(248, 250, 252, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.4);
    border-radius: 8px;
}

.attachment-delete-label {
    background: rgba(255, 255, 255, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.4);
    border-radius: 8px;
}

.attachment-delete-label:hover {
    background: rgba(254, 226, 226, 0.6);
    border-color: var(--forum-danger);
}

.modernforum .topic-actions .btn.btn-secondary,
.modernforum .topic-actions .btn.btn-danger {
    background: rgba(255, 255, 255, 0.4);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.5);
}

.modernforum .topic-actions .btn.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.6);
}

.modernforum .topic-actions .btn.btn-danger:hover {
    background: rgba(254, 226, 226, 0.6);
    border-color: var(--forum-danger);
}

.btn.btn-subscribe-cat {
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.35);
}

.btn.btn-subscribe-cat:hover {
    background: rgba(255, 255, 255, 0.32);
    border-color: rgba(255, 255, 255, 0.55);
}

@media (max-width: 768px) {
    .modernforum {
        padding: 16px;
        border-radius: var(--glass-radius);
    }

    .post-author {
        border-right: none;
        border-bottom: 1px solid rgba(255, 255, 255, 0.3);
    }
}