/* school.onapage.net board styles (M4). Loaded only on the board pages, so
   site.css stays as M2 shipped it. Every value comes from tokens.css. */

.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* ---------- layout ---------- */
.board-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:2.5rem;align-items:start;padding-block:1.5rem 4rem}
@media (max-width:900px){.board-layout{grid-template-columns:1fr}.board-rail{order:2}}
.board-main{min-width:0}
.board-title{font-size:2.3rem}
.board-rail{display:flex;flex-direction:column;gap:1.25rem;position:sticky;top:calc(var(--nav-h) + 1rem)}
@media (max-width:900px){.board-rail{position:static}}
.rail-card{padding:1.2rem 1.3rem}
.rail-card:hover{border-color:var(--hairline);box-shadow:none}
.rule-list{margin:0;padding-left:1.1rem;font-size:.9rem;color:var(--muted)}
.rule-list li{margin-bottom:.3rem}
.rail-links{display:flex;flex-direction:column;gap:.5rem;font-size:.92rem}
.rail-links .navlink{border-bottom:0;padding-block:0}
.navlink.is-muted,.meta-link.is-muted{color:var(--slate);cursor:default}

/* ---------- composer ---------- */
.composer{padding:1.2rem 1.4rem;margin:.4rem 0 1.6rem;display:flex;flex-direction:column;gap:.65rem}
.composer:hover{border-color:var(--hairline);box-shadow:none}
.composer-body{min-height:88px;resize:vertical;font-family:var(--font-body);line-height:1.55}
.composer-foot{display:flex;align-items:center;justify-content:space-between;gap:1rem;flex-wrap:wrap}
.radio-row{display:flex;gap:.5rem;flex-wrap:wrap}
.tag{font-family:var(--font-ui);font-weight:500;font-size:.85rem;padding:.4rem .9rem;border-radius:var(--r-ctl);border:1px solid var(--hairline);background:var(--tag-bg);color:var(--ice);display:inline-flex;align-items:center;gap:.4rem}
a.tag:hover{border-color:var(--steel)}
.tag-gold{border-color:var(--gold-ring);color:var(--gold)}
.tag-radio{cursor:pointer;font-size:.8rem;padding:.3rem .7rem}
.tag-radio input{accent-color:var(--gold);margin:0}
.tag-row{display:flex;gap:.6rem;flex-wrap:wrap;margin-bottom:.4rem}
.notice-card{padding:1.2rem 1.4rem;margin:.4rem 0 1.6rem;display:flex;flex-direction:column;gap:.9rem;align-items:flex-start}

/* ---------- post rows ---------- */
.post-list{display:flex;flex-direction:column}
.post,.reply{display:flex;gap:1rem;padding:1.15rem 0;border-bottom:1px solid var(--hairline)}
.post:first-child{border-top:1px solid var(--hairline)}
.post.is-pinned{background:linear-gradient(90deg,rgba(214,166,74,.06),transparent 60%)}
.is-hidden-row{opacity:.62}
.avatar{width:40px;height:40px;border-radius:50%;background:var(--exec);color:var(--cream);font-family:var(--font-ui);font-weight:700;display:flex;align-items:center;justify-content:center;flex:none;font-size:.9rem}
.avatar-admin{background:var(--gold);color:#10151b}
.post-main{flex:1;min-width:0}
.post-head{display:flex;align-items:center;gap:.5rem;flex-wrap:wrap}
.post-title{font-family:var(--font-ui);font-weight:600;font-size:1.05rem;color:var(--ice)}
.post-title:hover{color:var(--gold)}
.post-excerpt{color:var(--muted);margin:.4rem 0;font-size:.95rem}
.post-meta{display:flex;align-items:center;gap:.5rem 1rem;flex-wrap:wrap;font-size:.85rem;margin-top:.35rem}
.badge-hidden{background:rgba(217,74,74,.12);color:var(--err);border:1px solid rgba(217,74,74,.3)}
.empty{padding:2rem 0}

.meta-link{font-family:var(--font-ui);font-size:.85rem;color:var(--muted);background:none;border:0;padding:0;cursor:pointer}
.meta-link:hover{color:var(--ice)}
.meta-link.is-on{color:var(--gold)}
.like-form{display:inline}
.report{display:inline-block}
.report summary{list-style:none;display:inline-block}
.report summary::-webkit-details-marker{display:none}
.report-form{margin-top:.75rem;padding:1rem 1.1rem;border:1px solid var(--hairline);border-radius:var(--r-card);background:var(--field-bg);display:flex;flex-direction:column;gap:.5rem;max-width:520px}

/* ---------- thread ---------- */
.thread-head{padding:1.5rem 1.6rem;margin-bottom:1.6rem}
.thread-head:hover{border-color:var(--hairline);box-shadow:none}
.thread-title{font-size:2rem;margin:.6rem 0 .8rem}
.thread-body{margin-top:1.2rem}
.reply-heading{font-size:1.4rem;margin:2rem 0 .4rem}
.reply-list{display:flex;flex-direction:column;margin-bottom:1.6rem}
.reply:first-child{border-top:1px solid var(--hairline)}
.reply-body{max-width:none;margin-top:.4rem}
.reply-body p{margin:0 0 .7rem}
.reply-body p:last-child{margin-bottom:0}

/* ---------- lesson rail card ---------- */
.rail-card-head{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:.6rem;font-family:var(--font-ui)}
.rail-card-title{font-weight:600}
.rail-posts{display:flex;flex-direction:column;gap:.75rem;font-size:.9rem}
.rail-post{display:flex;flex-direction:column;gap:.15rem}
.rail-post-title{font-family:var(--font-ui);font-weight:600;line-height:1.3;color:var(--muted)}
.rail-post:hover .rail-post-title{color:var(--ice)}
.rail-cta{margin-top:.9rem;width:100%;justify-content:center;box-sizing:border-box}

/* ---------- admin moderation ---------- */
.report-card{margin-bottom:1.2rem;padding:1.3rem 1.5rem}
.report-card:hover{border-color:var(--hairline);box-shadow:none}
.report-excerpt{border-left:2px solid var(--hairline);padding-left:.9rem;font-size:.92rem;margin:.6rem 0}
.action-row{display:flex;gap:.5rem;flex-wrap:wrap;margin-top:.6rem}