/* Community Forum — modern, premium dark theme (cool charcoal + amber/orange accents).
   Layout: sticky category sidebar + content area, avatars, icon stats. No brown. */
:root{
  --fb:#0b0d12; --fp:#13161d; --fp2:#191d26; --fp3:#1f2430;
  --fl:#242a36; --fl2:#323a49; --ftx:#e9ecf3; --fmut:#888fa1; --fmut2:#6b7282;
  --fg:#f4b14a; --fg2:#ffd27a; --fo:#ff8a42; --fblue:#6aa0ff;
  --fgrad:linear-gradient(135deg,#ffc861,#ff8a42);
  --fshadow:0 10px 30px rgba(0,0,0,.45);
}
*{box-sizing:border-box}
.forum-wrap{max-width:1180px;margin:0 auto;padding:22px 16px 90px;color:var(--ftx)}
.forum-layout{display:grid;grid-template-columns:248px 1fr;gap:22px;align-items:start}
.f-muted{color:var(--fmut)}

/* ---------- sidebar ---------- */
.forum-sidebar{position:sticky;top:18px;display:flex;flex-direction:column;gap:14px}
.f-side-card{background:var(--fp);border:1px solid var(--fl);border-radius:16px;overflow:hidden}
.f-side-brand{padding:18px 18px 14px;background:radial-gradient(120% 120% at 0% 0%,rgba(255,138,66,.14),transparent 60%);
  border-bottom:1px solid var(--fl)}
.f-side-brand h2{font-size:1.1rem;font-weight:800;letter-spacing:.3px;background:var(--fgrad);
  -webkit-background-clip:text;background-clip:text;color:transparent}
.f-side-brand p{color:var(--fmut);font-size:.78rem;margin-top:2px}

.f-me{padding:14px 16px;display:flex;flex-direction:column;gap:10px}
.f-me-top{display:flex;align-items:center;gap:11px}
.f-me-info{min-width:0}
.f-me-name{font-weight:700;font-size:.96rem;color:var(--ftx);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.f-me-xp{margin-top:3px}
.f-bar{height:6px;background:#0a0c10;border-radius:99px;overflow:hidden;border:1px solid var(--fl)}
.f-bar>span{display:block;height:100%;background:var(--fgrad);border-radius:99px}
.f-me-xptext{color:var(--fmut);font-size:.74rem;margin-top:4px}
.f-me-guest{padding:14px 16px}

/* category nav */
.f-nav{display:flex;flex-direction:column;padding:8px}
.f-nav-item{display:flex;align-items:center;gap:11px;padding:10px 12px;border-radius:10px;text-decoration:none;
  color:var(--fmut);font-weight:600;font-size:.9rem;transition:.14s;border:1px solid transparent}
.f-nav-item:hover{background:var(--fp2);color:var(--ftx)}
.f-nav-item.active{background:linear-gradient(90deg,rgba(255,138,66,.16),rgba(255,138,66,.03));
  color:var(--fg2);border-color:rgba(255,138,66,.28)}
.f-nav-ic{width:30px;height:30px;border-radius:9px;display:flex;align-items:center;justify-content:center;
  font-size:15px;background:var(--fp3);border:1px solid var(--fl);flex-shrink:0}
.f-nav-item.active .f-nav-ic{background:rgba(255,138,66,.16);border-color:rgba(255,138,66,.4)}
.f-nav-cnt{margin-left:auto;font-size:.74rem;color:var(--fmut2);background:var(--fp3);border-radius:99px;padding:1px 8px}

/* ---------- main ---------- */
.forum-main{min-width:0}
#forum-app .forum-loading{padding:70px 0;text-align:center;color:var(--fmut)}
.f-section{margin:24px 0 14px;color:var(--ftx);font-size:1.05rem;font-weight:700;display:flex;align-items:center;gap:10px}
.f-section::after{content:"";flex:1;height:1px;background:var(--fl)}

/* hero */
.f-hero{position:relative;border-radius:18px;overflow:hidden;padding:38px 30px;margin-bottom:20px;
  background:linear-gradient(120deg,#1a1f2b 0%,#12151c 60%),radial-gradient(140% 120% at 100% 0%,rgba(255,138,66,.2),transparent 55%);
  border:1px solid var(--fl)}
.f-hero::after{content:"";position:absolute;inset:0;background:radial-gradient(90% 140% at 90% -10%,rgba(255,200,97,.18),transparent 50%);pointer-events:none}
.f-hero h1{font-size:1.9rem;font-weight:800;letter-spacing:.3px;position:relative}
.f-hero h1 b{background:var(--fgrad);-webkit-background-clip:text;background-clip:text;color:transparent}
.f-hero p{color:var(--fmut);margin-top:8px;max-width:560px;position:relative;font-size:.95rem}

/* buttons */
.btn-go{display:inline-flex;align-items:center;gap:7px;cursor:pointer;border:none;border-radius:10px;
  background:var(--fgrad);color:#1a1208;font-weight:700;padding:10px 18px;font-size:.9rem;text-decoration:none;
  transition:.15s;line-height:1.1;box-shadow:0 4px 14px rgba(255,138,66,.25)}
.btn-go:hover{transform:translateY(-1px);box-shadow:0 6px 20px rgba(255,138,66,.38);color:#1a1208}
.btn-go.ghost{background:transparent;color:var(--fmut);border:1px solid var(--fl2);box-shadow:none}
.btn-go.ghost:hover{color:var(--ftx);border-color:var(--fg);transform:none}
.btn-go:disabled{opacity:.5;cursor:default;transform:none}

/* thread rows */
.f-list{display:flex;flex-direction:column;gap:10px}
.f-row{display:flex;align-items:center;gap:14px;text-decoration:none;background:var(--fp);
  border:1px solid var(--fl);border-radius:14px;padding:14px 16px;transition:.14s}
.f-row:hover{border-color:var(--fl2);background:var(--fp2);transform:translateX(2px)}
.f-row-body{flex:1 1 auto;min-width:0}
.f-row-title{color:var(--ftx);font-weight:600;font-size:1.04rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.f-row-sub{color:var(--fmut);font-size:.82rem;margin-top:6px;display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.f-by{display:inline-flex;align-items:center;gap:6px}
.f-byname{color:var(--fblue);font-weight:600}
.f-trades{display:inline-flex;align-items:center;gap:4px;color:var(--fg);font-weight:600}
.f-trades svg{opacity:.85}
.f-dot{opacity:.5}
.f-row-stats{display:flex;gap:16px;flex-shrink:0;color:var(--fmut)}
.f-stat{display:flex;align-items:center;gap:5px;font-size:.86rem;font-weight:600}
.f-stat svg{opacity:.7}
.f-cat-tag{display:inline-flex;align-items:center;gap:5px;background:var(--fp3);border:1px solid var(--fl2);
  color:var(--fg2);border-radius:99px;padding:2px 10px;font-size:.74rem;font-weight:600}
.f-author{color:var(--fblue);text-decoration:none;font-weight:600}
.f-author:hover{color:#9bbcff}

/* avatar */
.f-av{display:inline-flex;align-items:center;justify-content:center;border-radius:50%;flex-shrink:0;
  font-weight:800;color:#10131a;background:linear-gradient(135deg,hsl(var(--h) 80% 66%),hsl(calc(var(--h) + 40deg) 80% 52%));
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.18)}

/* breadcrumb + category head */
.f-crumb{color:var(--fmut);font-size:.85rem;margin-bottom:16px;display:flex;gap:7px;align-items:center}
.f-crumb a{color:var(--fg);text-decoration:none}
.f-crumb a:hover{color:var(--fg2)}
.f-cathead{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;gap:14px;flex-wrap:wrap}
.f-cathead h1{font-size:1.55rem;font-weight:800;display:flex;align-items:center;gap:12px}
.f-cathead .f-nav-ic{width:38px;height:38px;font-size:19px}

/* thread + posts */
.f-thread{display:flex;flex-direction:column;gap:14px}
.f-post{display:flex;gap:18px;background:var(--fp);border:1px solid var(--fl);border-radius:16px;padding:18px 20px}
.f-post.f-op{border-color:var(--fl2);background:linear-gradient(180deg,var(--fp2),var(--fp))}
.f-post-side{flex-shrink:0;width:150px;display:flex;flex-direction:column;gap:9px;align-items:center;text-align:center;
  border-right:1px solid var(--fl);padding-right:16px}
.f-post-side .f-author{font-size:.92rem}
.f-post-main{flex:1;min-width:0}
.f-post-title{font-size:1.5rem;color:var(--ftx);font-weight:800;margin-bottom:14px;line-height:1.25}
.f-post-body{color:#cfd4e0;line-height:1.7;word-wrap:break-word;overflow-wrap:anywhere;font-size:.97rem}
.f-post-foot{margin-top:14px;font-size:.78rem;color:var(--fmut2);border-top:1px solid var(--fl);padding-top:10px}

/* reply box / inputs */
.f-replybox{margin-top:20px;background:var(--fp);border:1px solid var(--fl);border-radius:16px;padding:16px}
textarea,.f-modal input{width:100%;background:#0a0c11;border:1px solid var(--fl2);border-radius:10px;color:var(--ftx);
  padding:11px 13px;font-size:.95rem;font-family:inherit;resize:vertical;transition:.15s}
textarea:focus,.f-modal input:focus{outline:none;border-color:var(--fg);box-shadow:0 0 0 3px rgba(244,177,74,.12)}
.f-reply-actions{margin-top:11px;text-align:right}

/* profile */
.f-profile{background:var(--fp);border:1px solid var(--fl);border-radius:18px;padding:26px;margin-bottom:10px;
  background:linear-gradient(180deg,var(--fp2),var(--fp))}
.f-profile-head{display:flex;gap:20px;align-items:center}
.f-profile-nick{font-size:1.5rem;font-weight:800;margin-bottom:8px;display:flex;align-items:center;gap:12px}
.f-profile-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:22px}
.f-profile-stats>div{background:var(--fp3);border:1px solid var(--fl);border-radius:12px;padding:16px 8px;text-align:center}
.f-profile-stats b{display:block;font-size:1.45rem;font-weight:800;background:var(--fgrad);-webkit-background-clip:text;background-clip:text;color:transparent}
.f-profile-stats span{color:var(--fmut);font-size:.78rem;margin-top:2px;display:block}

/* level badges */
.lv-badge{display:inline-flex;align-items:center;border-radius:99px;padding:2px 11px;font-size:.7rem;font-weight:800;
  letter-spacing:.2px;white-space:nowrap;text-transform:uppercase;border:1px solid transparent}
.lv-0{background:#2b303b;color:#aeb6c6;border-color:#3a4150}
.lv-1{background:rgba(205,127,50,.16);color:#e6a36a;border-color:rgba(205,127,50,.5)}
.lv-2{background:rgba(190,200,214,.14);color:#dbe3ef;border-color:rgba(190,200,214,.45)}
.lv-3{background:rgba(255,205,80,.15);color:#ffda7d;border-color:rgba(255,205,80,.55)}
.lv-4{background:rgba(90,209,230,.14);color:#83e6f6;border-color:rgba(90,209,230,.5)}
.lv-5{background:rgba(185,242,255,.14);color:#cdf4ff;border-color:rgba(185,242,255,.5)}
.lv-6{background:linear-gradient(90deg,#7b2cd1,#c14fe0);color:#fff;border-color:#dca3ff}

/* empty / modal / toast */
.f-empty{text-align:center;color:var(--fmut);padding:40px 18px;background:var(--fp);border:1px dashed var(--fl2);border-radius:14px}
.f-modal-bg{position:fixed;inset:0;background:rgba(4,6,10,.72);display:flex;align-items:center;justify-content:center;
  z-index:1000;padding:18px;backdrop-filter:blur(4px)}
.f-modal{background:var(--fp);border:1px solid var(--fl2);border-radius:18px;padding:26px;width:100%;max-width:440px;box-shadow:var(--fshadow)}
.f-modal-wide{max-width:620px}
.f-modal h3{font-size:1.3rem;font-weight:800;margin-bottom:8px}
.f-modal p{color:var(--fmut);margin-bottom:16px;font-size:.9rem}
.f-modal input,.f-modal textarea{margin-bottom:12px}
.f-modal-actions{display:flex;gap:10px;justify-content:flex-end;margin-top:6px}
.alert{border-radius:10px;padding:10px 13px;font-size:.86rem}
.alert-error{background:rgba(255,80,80,.1);border:1px solid rgba(255,80,80,.4);color:#ff9a9a}
#f-toast-host{position:fixed;left:50%;bottom:28px;transform:translateX(-50%);z-index:1100;display:flex;flex-direction:column;gap:8px}
.f-toast{background:#161a22;border:1px solid var(--fl2);color:var(--ftx);border-radius:12px;padding:12px 22px;font-size:.9rem;
  opacity:0;transform:translateY(12px);transition:.3s;box-shadow:var(--fshadow)}
.f-toast.show{opacity:1;transform:translateY(0)}
.f-toast.ok{border-color:var(--fg);color:var(--fg2)}

@media(max-width:860px){
  .forum-layout{grid-template-columns:1fr}
  .forum-sidebar{position:static}
  .f-nav{flex-direction:row;flex-wrap:wrap;gap:6px}
  .f-nav-item{flex:1 1 auto}
  .f-nav-cnt{display:none}
}
@media(max-width:560px){
  .f-post{flex-direction:column;gap:12px}
  .f-post-side{width:auto;flex-direction:row;border-right:none;border-bottom:1px solid var(--fl);padding-right:0;padding-bottom:12px}
  .f-profile-stats{grid-template-columns:repeat(2,1fr)}
  .f-row-stats{gap:12px}
  .f-hero{padding:26px 20px}
}