/* Foros: reutiliza variables y primitivas (.bt-btn, .bt-container, .bt-form,
   .bt-empty, .bt-search) definidas en backtube.css, cargado siempre antes
   que este archivo. Todo lo específico de Foros usa el prefijo fr-. */

.fr-hero {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 1.25rem;
}

.fr-hero h1 {
    margin: 0 0 .3rem;
}

.fr-hero p {
    color: var(--text-muted);
    margin: 0;
    max-width: 640px;
}

.fr-stats {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    background: var(--panel-bg);
    border: 1px solid var(--border-soft);
    padding: 1rem 1.25rem;
    margin-bottom: 1.5rem;
}

.fr-stat {
    display: flex;
    flex-direction: column;
}

.fr-stat strong {
    color: var(--gold-bright);
    font-size: 1.3rem;
}

.fr-stat span {
    color: var(--text-muted);
    font-size: .75rem;
}

.fr-section-title {
    font-size: 1.05rem;
    margin: 1.75rem 0 .8rem;
    color: var(--text-cream);
}

.fr-online-bar {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: .8rem;
    background: var(--panel-bg);
    border: 1px solid var(--border-soft);
    padding: .7rem 1rem;
    margin-bottom: .8rem;
}

.fr-online-bar__label {
    color: var(--gold-bright);
    font-size: .8rem;
    font-weight: 700;
    white-space: nowrap;
}

.fr-online-empty {
    color: var(--text-muted);
    font-size: .8rem;
}

.fr-online-list {
    display: flex;
    flex-wrap: wrap;
    gap: .6rem;
    overflow-x: auto;
}

.fr-online-user {
    display: flex;
    align-items: center;
    gap: .35rem;
    color: var(--text-cream);
    text-decoration: none;
    font-size: .78rem;
    background: var(--panel-bg-alt);
    border: 1px solid var(--border-soft);
    padding: .2rem .6rem .2rem .2rem;
    border-radius: 999px;
}

.fr-online-user:hover {
    border-color: var(--gold);
    color: var(--gold-bright);
}

.fr-online-user__avatar {
    width: 1.4rem;
    height: 1.4rem;
    border-radius: 50%;
    object-fit: cover;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 700;
    font-size: .65rem;
}

/* ---- categorías ---- */

.fr-categories {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1rem;
}

.fr-category-card {
    display: flex;
    flex-direction: column;
    gap: .2rem;
    background: var(--panel-bg);
    border: 1px solid var(--border-soft);
    padding: 1rem;
    text-decoration: none;
    color: inherit;
    transition: border-color .15s;
}

.fr-category-card:hover {
    border-color: var(--gold);
}

.fr-category-card__icon {
    font-size: 1.6rem;
}

.fr-category-card__name {
    color: var(--gold-bright);
    font-weight: 700;
    font-size: .95rem;
}

.fr-category-card__desc {
    color: var(--text-muted);
    font-size: .78rem;
    flex: 1;
}

.fr-category-card__count {
    color: var(--text-muted);
    font-size: .72rem;
    margin-top: .4rem;
}

/* ---- feed principal (home + sidebar) ---- */

.fr-home {
    display: flex;
    gap: 2rem;
    align-items: flex-start;
    margin-top: 1rem;
}

.fr-home__main {
    flex: 1;
    min-width: 0;
}

.fr-home__sidebar {
    width: 300px;
    flex-shrink: 0;
}

.fr-sidebar-empty {
    color: var(--text-muted);
    font-size: .82rem;
}

.fr-latest-comment {
    display: flex;
    gap: .6rem;
    padding: .7rem 0;
    border-bottom: 1px solid var(--border-soft);
    text-decoration: none;
    color: inherit;
}

.fr-latest-comment:last-child {
    border-bottom: none;
}

.fr-latest-comment__avatar {
    width: 2rem;
    height: 2rem;
    border-radius: 50%;
    flex-shrink: 0;
    object-fit: cover;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 700;
    font-size: .8rem;
}

.fr-latest-comment strong {
    color: var(--gold);
    font-size: .82rem;
}

.fr-latest-comment em {
    font-style: normal;
    color: var(--text-cream);
    font-size: .82rem;
}

.fr-latest-comment p {
    margin: .2rem 0 0;
    color: var(--text-muted);
    font-size: .78rem;
}

/* ---- listado de temas (tarjetas) ---- */

.fr-topic-list {
    display: flex;
    flex-direction: column;
    gap: .7rem;
}

.fr-topic-card {
    display: flex;
    gap: .8rem;
    background: var(--panel-bg);
    border: 1px solid var(--border-soft);
    padding: 1rem;
    text-decoration: none;
    color: inherit;
    transition: border-color .15s;
}

.fr-topic-card:hover {
    border-color: var(--gold);
}

.fr-topic-card__avatar {
    width: 2.4rem;
    height: 2.4rem;
    border-radius: 50%;
    flex-shrink: 0;
    object-fit: cover;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 700;
}

.fr-topic-card__body {
    flex: 1;
    min-width: 0;
}

.fr-topic-card__flags {
    display: flex;
    gap: .4rem;
    align-items: center;
    flex-wrap: wrap;
    margin-bottom: .3rem;
}

.fr-topic-card__forum {
    color: var(--text-muted);
    font-size: .72rem;
    text-transform: uppercase;
    letter-spacing: .03em;
}

.fr-topic-card__title {
    margin: 0 0 .3rem;
    font-size: 1rem;
    color: var(--text-cream);
}

.fr-topic-card__excerpt {
    margin: 0 0 .5rem;
    color: var(--text-muted);
    font-size: .85rem;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.fr-topic-card__meta {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    color: var(--text-muted);
    font-size: .75rem;
}

.fr-topic-card__meta span:first-child {
    color: var(--gold);
}

.fr-flag {
    font-size: .68rem;
    padding: .1rem .45rem;
    border: 1px solid var(--border-soft);
    color: var(--text-muted);
    white-space: nowrap;
}

.fr-flag--pin, .fr-flag--star { color: var(--gold); border-color: var(--gold); }
.fr-flag--lock { color: var(--danger); border-color: var(--danger); }

/* ---- foros dentro de una categoría ---- */

.fr-forum-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 1.25rem;
}

.fr-forum-card {
    display: flex;
    flex-direction: column;
    background: var(--panel-bg);
    border: 1px solid var(--border-soft);
    text-decoration: none;
    color: inherit;
    overflow: hidden;
    transition: border-color .15s;
}

.fr-forum-card:hover {
    border-color: var(--gold);
}

.fr-forum-card__cover {
    width: 100%;
    aspect-ratio: 16 / 7;
    object-fit: cover;
    background: var(--panel-bg-alt);
}

.fr-forum-card__cover--placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
}

.fr-forum-card__body {
    padding: 1rem;
}

.fr-forum-card__body h3 {
    margin: 0 0 .3rem;
    font-size: .95rem;
    color: var(--text-cream);
}

.fr-forum-card__body p {
    margin: 0 0 .5rem;
    color: var(--text-muted);
    font-size: .82rem;
}

.fr-forum-card__meta {
    color: var(--text-muted);
    font-size: .72rem;
}

/* ---- página de un foro ---- */

.fr-forum-banner {
    height: 180px;
    background-size: cover;
    background-position: center;
    border-bottom: 1px solid var(--border-soft);
}

.fr-forum-header {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
    margin-top: 1rem;
}

.fr-forum-header h1 {
    margin: .2rem 0;
}

.fr-forum-header p {
    color: var(--text-muted);
    max-width: 640px;
}

.fr-forum-header__meta {
    color: var(--text-muted);
    font-size: .82rem;
}

.fr-forum-header__actions {
    display: flex;
    gap: .5rem;
    flex-shrink: 0;
}

.fr-breadcrumb {
    color: var(--gold);
    text-decoration: none;
    font-size: .8rem;
}

.fr-breadcrumb:hover {
    color: var(--gold-bright);
}

.fr-rules {
    background: var(--panel-bg);
    border: 1px solid var(--border-soft);
    padding: .7rem 1rem;
    margin: 1rem 0;
    font-size: .85rem;
}

.fr-rules summary {
    cursor: pointer;
    color: var(--gold);
}

.fr-tags {
    display: flex;
    flex-wrap: wrap;
    gap: .4rem;
    margin: .6rem 0;
}

.fr-tag {
    color: var(--gold);
    border: 1px solid var(--border-soft);
    padding: .15rem .55rem;
    font-size: .75rem;
    text-decoration: none;
}

.fr-tag:hover {
    border-color: var(--gold);
    color: var(--gold-bright);
}

.fr-sort-bar {
    display: flex;
    gap: 1.1rem;
    flex-wrap: wrap;
    border-bottom: 1px solid var(--border-soft);
    padding-bottom: .6rem;
    margin: 1.25rem 0 1rem;
}

.fr-sort-bar a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: .82rem;
    padding-bottom: .4rem;
}

.fr-sort-bar a.active {
    color: var(--gold-bright);
    border-bottom: 2px solid var(--gold);
}

/* ---- buscador ---- */

.fr-search-filters {
    display: flex;
    flex-wrap: wrap;
    gap: .6rem;
    margin: 1rem 0;
}

.fr-search-filters input,
.fr-search-filters select {
    padding: .5rem .65rem;
    background: var(--panel-bg);
    border: 1px solid var(--border-soft);
    color: var(--text-cream);
    font-family: inherit;
    font-size: .85rem;
}

.fr-search-filters input[name="q"] {
    flex: 1;
    min-width: 200px;
}

/* ---- editor enriquecido ---- */

.fr-editor {
    border: 1px solid var(--border-soft);
    background: var(--panel-bg);
    margin-bottom: 1rem;
}

.fr-editor__toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: .25rem;
    padding: .4rem;
    border-bottom: 1px solid var(--border-soft);
}

.fr-editor__toolbar button {
    background: transparent;
    border: 1px solid transparent;
    color: var(--text-cream);
    padding: .3rem .55rem;
    cursor: pointer;
    font-size: .82rem;
    font-family: inherit;
}

.fr-editor__toolbar button:hover {
    border-color: var(--border-soft);
    color: var(--gold);
}

.fr-editor__sep {
    width: 1px;
    background: var(--border-soft);
    margin: 0 .3rem;
}

.fr-editor__area {
    min-height: 220px;
    padding: .9rem 1rem;
    color: var(--text-cream);
    font-size: .92rem;
    line-height: 1.6;
    outline: none;
}

.fr-editor__area:empty::before {
    content: attr(data-placeholder);
    color: var(--text-muted);
}

.fr-editor__area h2 { font-size: 1.2rem; margin: .6rem 0; }
.fr-editor__area h3 { font-size: 1.05rem; margin: .5rem 0; }
.fr-editor__area blockquote {
    border-left: 3px solid var(--gold);
    margin: .6rem 0;
    padding: .3rem 0 .3rem .8rem;
    color: var(--text-muted);
}
.fr-editor__area pre, .fr-editor__area code {
    background: var(--panel-bg-alt);
    padding: .1rem .3rem;
    font-family: 'Courier New', ui-monospace, monospace;
}
.fr-editor__area pre { display: block; padding: .7rem; overflow-x: auto; }
.fr-editor__area img { max-width: 100%; }
.fr-editor__area a { color: var(--gold); }
.fr-editor__area ul, .fr-editor__area ol { padding-left: 1.4rem; }
.fr-editor__area table, .fr-topic-body table {
    border-collapse: collapse;
    margin: .6rem 0;
    width: 100%;
}
.fr-editor__area td, .fr-editor__area th,
.fr-topic-body td, .fr-topic-body th {
    border: 1px solid var(--border-soft);
    padding: .4rem .6rem;
    font-size: .88rem;
}
.fr-editor__area hr, .fr-topic-body hr {
    border: none;
    border-top: 1px solid var(--border-soft);
    margin: 1rem 0;
}

/* Marcador temporal mientras se sube un archivo dentro del editor */
.fr-editor__uploading {
    color: var(--text-muted);
    font-style: italic;
    font-size: .85rem;
}

/* ---- spoiler (editor + contenido publicado) ---- */

.spoiler {
    background: var(--panel-bg-alt);
    border-radius: 3px;
    padding: 0 .3rem;
}

.spoiler.is-hidden {
    color: transparent;
    background: var(--text-muted);
    cursor: pointer;
    border-radius: 3px;
    user-select: none;
}

.spoiler.is-hidden:hover {
    opacity: .85;
}

/* ---- subir archivo por arrastrar-y-soltar dentro del editor ---- */

.fr-editor__dropzone {
    display: none;
    text-align: center;
    padding: .8rem;
    margin-top: .4rem;
    border: 1px dashed var(--border-soft);
    color: var(--text-muted);
    font-size: .8rem;
}

.fr-editor__dropzone.is-active {
    display: block;
    border-color: var(--gold);
    color: var(--gold);
}

/* ---- vista previa del editor ---- */

.fr-editor__preview {
    padding: .9rem 1rem;
    color: var(--text-cream);
    font-size: .92rem;
    line-height: 1.6;
    border-top: 1px dashed var(--border-soft);
}

.fr-editor__preview img { max-width: 100%; }
.fr-editor__preview table { border-collapse: collapse; width: 100%; }
.fr-editor__preview td, .fr-editor__preview th { border: 1px solid var(--border-soft); padding: .4rem .6rem; }

/* ---- página de un tema ---- */

.fr-topic-flags {
    display: flex;
    gap: .4rem;
    margin-top: 1rem;
}

.fr-topic-byline {
    display: flex;
    align-items: center;
    gap: .7rem;
    margin: .8rem 0 1rem;
}

.fr-topic-byline__avatar {
    width: 2.6rem;
    height: 2.6rem;
    border-radius: 50%;
    object-fit: cover;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 700;
}

.fr-topic-byline > div:nth-child(2) {
    flex: 1;
    color: var(--text-muted);
    font-size: .8rem;
}

.fr-topic-byline__actions {
    display: flex;
    gap: .5rem;
}

.fr-mod-bar {
    display: flex;
    align-items: center;
    gap: .5rem;
    flex-wrap: wrap;
    background: var(--panel-bg-alt);
    border: 1px dashed var(--border-soft);
    padding: .6rem .8rem;
    margin-bottom: 1rem;
    font-size: .82rem;
}

.fr-topic-cover {
    width: 100%;
    max-height: 420px;
    object-fit: cover;
    border: 1px solid var(--border-soft);
    margin-bottom: 1rem;
}

.fr-topic-body {
    color: var(--text-cream);
    font-size: .95rem;
    line-height: 1.7;
    margin-bottom: 1.25rem;
}

.fr-topic-body h2 { font-size: 1.3rem; margin: 1rem 0 .5rem; }
.fr-topic-body h3 { font-size: 1.1rem; margin: .8rem 0 .4rem; }
.fr-topic-body blockquote {
    border-left: 3px solid var(--gold);
    margin: .8rem 0;
    padding: .3rem 0 .3rem 1rem;
    color: var(--text-muted);
}
.fr-topic-body pre, .fr-topic-body code {
    background: var(--panel-bg-alt);
    padding: .15rem .35rem;
    font-family: 'Courier New', ui-monospace, monospace;
}
.fr-topic-body pre { display: block; padding: 1rem; overflow-x: auto; }
.fr-topic-body img { max-width: 100%; margin: .5rem 0; }
.fr-topic-body a { color: var(--gold); }
.fr-topic-body ul, .fr-topic-body ol { padding-left: 1.6rem; }
.fr-topic-body .mention, .fr-comment__body .mention {
    color: var(--gold);
    font-weight: 600;
    text-decoration: none;
}

/* ---- video, adjuntos y encuesta de un tema ---- */

.fr-topic-video {
    aspect-ratio: 16 / 9;
    margin-bottom: 1rem;
    background: #000;
}

.fr-topic-video iframe {
    width: 100%;
    height: 100%;
    border: 0;
}

.fr-attachments {
    background: var(--panel-bg);
    border: 1px solid var(--border-soft);
    padding: .8rem 1rem;
    margin-bottom: 1.25rem;
}

.fr-attachments h3 {
    margin: 0 0 .5rem;
    font-size: .85rem;
    color: var(--text-muted);
    font-weight: 600;
}

.fr-attachment {
    display: block;
    color: var(--gold);
    text-decoration: none;
    font-size: .85rem;
    padding: .3rem 0;
}

.fr-attachment:hover {
    color: var(--gold-bright);
}

.fr-attachment span {
    color: var(--text-muted);
    font-size: .75rem;
}

.fr-poll {
    background: var(--panel-bg);
    border: 1px solid var(--border-soft);
    padding: 1rem;
    margin-bottom: 1.25rem;
}

.fr-poll h3 {
    margin: 0 0 .8rem;
    font-size: .95rem;
}

.fr-poll__options {
    display: flex;
    flex-direction: column;
    gap: .5rem;
}

.fr-poll-option-btn {
    text-align: left;
    background: var(--panel-bg-alt);
    border: 1px solid var(--border-soft);
    color: var(--text-cream);
    padding: .55rem .8rem;
    cursor: pointer;
    font-family: inherit;
    font-size: .85rem;
}

.fr-poll-option-btn:hover {
    border-color: var(--gold);
}

.fr-poll-result {
    position: relative;
    background: var(--panel-bg-alt);
    border: 1px solid var(--border-soft);
    padding: .55rem .8rem;
    overflow: hidden;
    display: flex;
    justify-content: space-between;
    font-size: .85rem;
}

.fr-poll-result__bar {
    position: absolute;
    inset: 0;
    background: rgba(232, 199, 102, .18);
    z-index: 0;
}

.fr-poll-result__label, .fr-poll-result__pct {
    position: relative;
    z-index: 1;
}

.fr-poll-result__pct {
    color: var(--text-muted);
}

.fr-poll__total {
    margin: .7rem 0 0;
    color: var(--text-muted);
    font-size: .75rem;
}

.fr-poll-builder {
    background: var(--panel-bg-alt);
    border: 1px dashed var(--border-soft);
    padding: .8rem 1rem;
    margin: .5rem 0 1rem;
}

.fr-poll-builder label {
    font-weight: normal;
}

#fr-poll-options label {
    margin-bottom: .5rem;
}

.fr-attachment-edit-list {
    display: flex;
    flex-direction: column;
    gap: .3rem;
    margin-bottom: .8rem;
}

/* ---- votos y reacciones ---- */

.fr-votebar {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    border: 1px solid var(--border-soft);
    padding: .25rem .6rem;
    margin-right: .6rem;
}

.fr-votebar--sm {
    padding: .1rem .4rem;
    margin-right: .4rem;
}

.fr-vote-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: .9rem;
    padding: 0 .2rem;
}

.fr-vote-btn.active {
    color: var(--gold-bright);
}

.fr-vote-score {
    color: var(--text-cream);
    font-weight: 700;
    font-size: .85rem;
    min-width: 1.2rem;
    text-align: center;
}

.fr-reactions {
    display: inline-flex;
    flex-wrap: wrap;
    gap: .3rem;
    margin: .5rem 0 1.5rem;
}

.fr-reactions--sm {
    margin: .3rem 0 0;
}

.fr-reaction-btn {
    background: var(--panel-bg);
    border: 1px solid var(--border-soft);
    color: var(--text-muted);
    cursor: pointer;
    font-size: .78rem;
    padding: .2rem .5rem;
    display: inline-flex;
    align-items: center;
    gap: .3rem;
}

.fr-reaction-btn:hover {
    border-color: var(--gold);
}

.fr-reaction-btn.active {
    border-color: var(--gold);
    color: var(--gold-bright);
    background: var(--panel-bg-alt);
}

/* ---- comentarios ---- */

.fr-comments {
    margin-top: 1.5rem;
    border-top: 1px solid var(--border-soft);
    padding-top: 1.25rem;
}

.fr-comment-form {
    display: flex;
    flex-direction: column;
    gap: .5rem;
    margin-bottom: 1.25rem;
    max-width: 560px;
}

.fr-comment-form textarea,
.fr-comment-form input[type="text"] {
    background: var(--panel-bg);
    border: 1px solid var(--border-soft);
    color: var(--text-cream);
    padding: .6rem .75rem;
    font-family: inherit;
    resize: vertical;
}

.fr-comment-form button {
    align-self: flex-start;
}

.fr-locked-notice {
    color: var(--text-muted);
    font-size: .85rem;
    background: var(--panel-bg);
    border: 1px solid var(--border-soft);
    padding: .7rem 1rem;
}

.fr-comment {
    display: flex;
    gap: .7rem;
    padding: .9rem 0;
    border-bottom: 1px solid var(--border-soft);
}

.fr-comment--reply {
    margin-left: 2.8rem;
    padding-top: .6rem;
}

.fr-comment__avatar {
    width: 2.2rem;
    height: 2.2rem;
    border-radius: 50%;
    flex-shrink: 0;
    object-fit: cover;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 700;
    font-size: .85rem;
}

.fr-comment__body-wrap {
    flex: 1;
    min-width: 0;
}

.fr-comment__head {
    display: flex;
    align-items: center;
    gap: .5rem;
    flex-wrap: wrap;
}

.fr-comment__author {
    color: var(--gold);
    font-weight: 700;
    font-size: .85rem;
    text-decoration: none;
}

.fr-comment__edited {
    color: var(--text-muted);
    font-size: .72rem;
}

.fr-comment__deleted {
    color: var(--text-muted);
    font-style: italic;
    font-size: .85rem;
}

.fr-comment__body {
    color: var(--text-cream);
    font-size: .9rem;
    margin: .3rem 0 .4rem;
    line-height: 1.5;
    word-break: break-word;
}

.fr-comment__actions {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: .3rem;
}

.fr-link-btn {
    background: none;
    border: none;
    color: var(--gold);
    cursor: pointer;
    font-size: .78rem;
    padding: 0 .3rem;
    font-family: inherit;
}

.fr-link-btn:hover {
    color: var(--gold-bright);
}

.fr-time {
    color: var(--text-muted);
    font-size: .75rem;
}

/* ---- responsive ---- */

@media (max-width: 900px) {
    .fr-home {
        flex-direction: column;
    }
    .fr-home__sidebar {
        width: 100%;
    }
    .fr-comment--reply {
        margin-left: 1.2rem;
    }
}

@media (max-width: 640px) {
    .fr-hero {
        flex-direction: column;
    }
    .fr-topic-card {
        flex-direction: column;
    }
    .fr-search-filters {
        flex-direction: column;
    }
    .fr-search-filters input,
    .fr-search-filters select {
        width: 100%;
    }
}