*{box-sizing:border-box;margin:0;padding:0}
body{font-family:Arial,sans-serif;background:#f0f2f5;color:#1a1a1a}
a{text-decoration:none;color:inherit}

/* LOADER */
#loader{position:fixed;inset:0;background:#7B1113;display:flex;flex-direction:column;align-items:center;justify-content:center;z-index:9999;transition:opacity 0.6s ease,visibility 0.6s ease}
#loader.hide{opacity:0;visibility:hidden;pointer-events:none}
#loader-logo{width:72px;height:72px;background:rgba(255,255,255,0.15);border:2px solid rgba(255,255,255,0.4);border-radius:16px;display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:700;color:#fff;margin-bottom:24px;animation:logopop 0.5s ease forwards}
@keyframes logopop{from{transform:scale(0.7);opacity:0}to{transform:scale(1);opacity:1}}
#loader-title{font-size:22px;font-weight:700;color:#fff;text-align:center;line-height:1.4;margin-bottom:8px;max-width:380px;animation:fadein 0.6s ease 0.2s both}
#loader-sub{font-size:13px;color:rgba(255,255,255,0.7);text-align:center;margin-bottom:40px;animation:fadein 0.6s ease 0.4s both}
@keyframes fadein{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}
#loader-bar-wrap{width:260px;height:4px;background:rgba(255,255,255,0.2);border-radius:4px;overflow:hidden;animation:fadein 0.6s ease 0.5s both}
#loader-bar{height:100%;width:0%;background:#4CAF50;border-radius:4px;transition:width 0.4s ease}
#loader-status{font-size:11px;color:rgba(255,255,255,0.5);margin-top:12px;animation:fadein 0.6s ease 0.6s both;height:16px;text-align:center}
#loader-dots{display:flex;gap:6px;margin-top:28px;animation:fadein 0.6s ease 0.7s both}
.ld{width:7px;height:7px;border-radius:50%;background:rgba(255,255,255,0.3);animation:ldp 1.4s infinite}
.ld:nth-child(2){animation-delay:0.2s}
.ld:nth-child(3){animation-delay:0.4s}
@keyframes ldp{0%,80%,100%{background:rgba(255,255,255,0.2);transform:scale(0.8)}40%{background:#4CAF50;transform:scale(1.2)}}
#loader-badge{position:absolute;bottom:28px;font-size:10px;color:rgba(255,255,255,0.35);letter-spacing:0.5px}

/* TOPBAR */
#topbar{background:#7B1113;padding:7px 0;text-align:center}
#topbar p{font-size:11px;color:rgba(255,255,255,0.85);letter-spacing:0.3px}

/* NAVBAR */
#navbar{background:#fff;border-bottom:1px solid #ddd;padding:0 32px;display:flex;align-items:center;justify-content:space-between;gap:16px;position:sticky;top:0;z-index:200}
#navbar-logo{display:flex;align-items:center;gap:10px;padding:10px 0}
#nlo{width:34px;height:34px;background:#7B1113;border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;color:#fff;flex-shrink:0}
#nlt{font-size:13px;font-weight:700;color:#1a1a1a}
#nls{font-size:11px;color:#888}
#navbar-links{display:flex;gap:2px}
.nbl{padding:9px 13px;font-size:12px;font-weight:600;color:#555;border-radius:6px;transition:all 0.15s;white-space:nowrap}
.nbl:hover{background:#f5f5f5;color:#7B1113}
#nb-chat{background:#7B1113;color:#fff;border:none;border-radius:20px;padding:8px 16px;font-size:12px;font-weight:700;cursor:pointer;display:flex;align-items:center;gap:7px;transition:all 0.15s}
#nb-chat:hover{background:#9B1315}
#nb-dot{width:7px;height:7px;background:#4CAF50;border-radius:50%;animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:0.4}}

/* HERO */
#hero{background:#7B1113;padding:32px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
#hero-left{flex:1;min-width:260px}
#hero-tag{display:inline-block;background:rgba(255,255,255,0.15);color:rgba(255,255,255,0.9);font-size:11px;padding:3px 12px;border-radius:16px;margin-bottom:12px;border:1px solid rgba(255,255,255,0.25)}
#hero h1{font-size:24px;font-weight:700;color:#fff;line-height:1.3;margin-bottom:8px}
#hero p{font-size:13px;color:rgba(255,255,255,0.8);line-height:1.6;margin-bottom:16px;max-width:440px}
#hero-btns{display:flex;gap:8px;flex-wrap:wrap}
.hbtn{padding:9px 18px;border-radius:20px;font-size:12px;font-weight:700;cursor:pointer;text-decoration:none;transition:all 0.15s;display:inline-block}
.hbtn-p{background:#4CAF50;color:#fff;border:none}
.hbtn-p:hover{background:#43A047}
.hbtn-o{background:transparent;color:#fff;border:1px solid rgba(255,255,255,0.45)}
.hbtn-o:hover{background:rgba(255,255,255,0.1)}
#hero-stats{display:flex;gap:0;background:rgba(255,255,255,0.1);border:1px solid rgba(255,255,255,0.15);border-radius:12px;overflow:hidden;flex-shrink:0}
.hstat{padding:16px 22px;text-align:center;border-right:1px solid rgba(255,255,255,0.15)}
.hstat:last-child{border-right:none}
.hsn{font-size:22px;font-weight:700;color:#fff}
.hsl{font-size:10px;color:rgba(255,255,255,0.6);margin-top:2px}

/* LAYOUT */
#layout{display:grid;grid-template-columns:220px 1fr;min-height:0}
#sidebar{background:#fff;border-right:1px solid #e0e0e0;padding:20px 0}
.sb-sec{margin-bottom:6px}
.sb-ttl{font-size:10px;font-weight:700;color:#aaa;padding:6px 18px 3px;letter-spacing:1px;text-transform:uppercase}
.sbln{display:flex;align-items:center;gap:8px;padding:8px 18px;font-size:12px;color:#444;transition:all 0.15s;cursor:pointer;border-left:3px solid transparent}
.sbln:hover{background:#f9f5f5;color:#7B1113;border-left-color:#7B1113}
.sbln.active{background:#fdf0f0;color:#7B1113;border-left-color:#7B1113;font-weight:700}
.sbd{width:6px;height:6px;border-radius:50%;background:#ddd;flex-shrink:0}
.sbln.active .sbd,.sbln:hover .sbd{background:#7B1113}

/* WIKI */
#wiki{padding:24px 28px;overflow-y:auto;max-height:calc(100vh - 280px)}
.bc{font-size:11px;color:#aaa;margin-bottom:10px}
.bc span{color:#7B1113}
.wh h2{font-size:18px;font-weight:700;color:#1a1a1a;margin-bottom:4px}
.wh p{font-size:12px;color:#777;line-height:1.5;margin-bottom:16px}
.ibanner{background:#fdf0f0;border:1px solid #f5c6c6;border-radius:8px;padding:11px 14px;margin-bottom:16px;display:flex;gap:10px;align-items:flex-start}
.bico{width:18px;height:18px;background:#7B1113;border-radius:50%;display:flex;align-items:center;justify-content:center;flex-shrink:0;margin-top:1px}
.btxt{font-size:12px;color:#7B1113;line-height:1.5}
.sdiv{font-size:13px;font-weight:700;color:#1a1a1a;margin-bottom:10px;padding-bottom:6px;border-bottom:2px solid #f0f0f0;display:flex;align-items:center;gap:7px}
.sdot{width:7px;height:7px;border-radius:50%;background:#7B1113}
.cgrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:10px;margin-bottom:16px}
.wcard{background:#fff;border:1px solid #e8e8e8;border-radius:8px;padding:14px;transition:all 0.15s}
.wcard:hover{border-color:#7B1113;box-shadow:0 2px 8px rgba(123,17,19,0.07)}
.wcico{width:28px;height:28px;background:#fdf0f0;border-radius:6px;display:flex;align-items:center;justify-content:center;margin-bottom:10px}
.wcard h3{font-size:12px;font-weight:700;color:#1a1a1a;margin-bottom:5px}
.wcard p{font-size:11px;color:#777;line-height:1.5}
.glist{display:flex;flex-direction:column;gap:7px;margin-bottom:16px}
.grow{background:#fff;border:1px solid #e8e8e8;border-radius:7px;padding:10px 14px;display:flex;align-items:center;gap:10px;transition:all 0.15s}
.grow:hover{border-color:#7B1113;background:#fdf9f9}
.gbadge{background:#fdf0f0;color:#7B1113;font-size:10px;font-weight:700;padding:2px 8px;border-radius:10px;border:1px solid #f5c6c6;white-space:nowrap}
.gname{font-size:12px;font-weight:600;color:#333;flex:1}
.gdesc{font-size:11px;color:#999;margin-top:1px}
.agrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:10px;margin-bottom:16px}
.acard{background:#fff;border:1px solid #e8e8e8;border-radius:8px;padding:14px;transition:all 0.15s;display:flex;gap:10px;align-items:flex-start}
.acard:hover{border-color:#7B1113;background:#fdf9f9}
.anum{font-size:20px;font-weight:700;color:#7B1113;flex-shrink:0;line-height:1}
.ainfo h4{font-size:12px;font-weight:700;color:#1a1a1a;margin-bottom:4px}
.ainfo p{font-size:11px;color:#777;line-height:1.5}
.egrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:10px;margin-bottom:16px}
.ecard{background:#fff;border:1px solid #e8e8e8;border-radius:8px;padding:14px;border-top:2px solid #7B1113;transition:all 0.15s}
.ecard:hover{box-shadow:0 2px 10px rgba(123,17,19,0.08);transform:translateY(-1px)}
.ecard h4{font-size:12px;font-weight:700;color:#7B1113;margin-bottom:5px}
.ecard p{font-size:11px;color:#777;line-height:1.5}
.llist{display:flex;flex-direction:column;gap:7px}
.rlink{background:#fff;border:1px solid #e8e8e8;border-radius:7px;padding:10px 14px;display:flex;align-items:center;gap:10px;transition:all 0.15s}
.rlink:hover{background:#7B1113;border-color:#7B1113}
.rlink:hover .rlt{color:#fff}
.rlink:hover .rlu{color:rgba(255,255,255,0.7)}
.rlink:hover .rlav{background:rgba(255,255,255,0.2)}
.rlav{width:30px;height:30px;border-radius:6px;background:#7B1113;color:#fff;display:flex;align-items:center;justify-content:center;font-size:9px;font-weight:700;flex-shrink:0}
.rlt{font-size:12px;font-weight:600;color:#333}
.rlu{font-size:10px;color:#aaa;margin-top:1px}

/* FOOTER */
#footer{background:#1a1a1a;padding:28px 32px}
#ftop{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:32px;margin-bottom:20px}
#footer h4{font-size:12px;font-weight:700;color:#fff;margin-bottom:10px}
#footer p{font-size:11px;color:#888;line-height:1.6}
.fcourse{margin-top:8px;font-size:10px!important;color:#555!important}
.cgr{display:grid;grid-template-columns:1fr 1fr;gap:7px}
.ci{display:flex;align-items:center;gap:7px}
.cav{width:26px;height:26px;border-radius:50%;background:#7B1113;color:#fff;display:flex;align-items:center;justify-content:center;font-size:8px;font-weight:700;flex-shrink:0}
.cn{font-size:11px;color:#bbb}
.flink{display:block;font-size:11px;color:#888;padding:2px 0;transition:color 0.15s}
.flink:hover{color:#fff}
#fbot{border-top:1px solid #333;padding-top:14px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:6px}
#fbot p{font-size:10px;color:#555}

/* CHAT FAB */
#fab{position:fixed;bottom:20px;right:20px;background:#7B1113;color:#fff;border:none;border-radius:24px;padding:12px 18px;font-size:12px;font-weight:700;cursor:pointer;display:flex;align-items:center;gap:8px;box-shadow:0 4px 16px rgba(123,17,19,0.4);z-index:301;transition:all 0.2s}
#fab:hover{background:#9B1315;transform:translateY(-1px)}
#fabi{width:20px;height:20px;background:#4CAF50;border-radius:50%;display:flex;align-items:center;justify-content:center;flex-shrink:0}
#fabd{width:6px;height:6px;background:#4CAF50;border-radius:50%;animation:pulse 2s infinite}

/* CHAT WINDOW */
#chat-win{position:fixed;bottom:76px;right:20px;width:340px;height:480px;background:#fff;border-radius:14px;box-shadow:0 8px 30px rgba(0,0,0,0.2);display:flex;flex-direction:column;z-index:300;transform:scale(0.95) translateY(10px);opacity:0;pointer-events:none;transition:all 0.2s}
#chat-win.open{transform:scale(1) translateY(0);opacity:1;pointer-events:all}
#cwh{background:#7B1113;padding:12px 14px;display:flex;align-items:center;gap:9px;border-radius:14px 14px 0 0;flex-shrink:0}
#cwav{width:32px;height:32px;border-radius:50%;background:#4CAF50;display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:700;color:#fff;flex-shrink:0}
#cwhi{flex:1}
#cwhn{font-size:13px;font-weight:700;color:#fff}
#cwhs{font-size:10px;color:rgba(255,255,255,0.7)}
#cwx{background:rgba(255,255,255,0.15);border:none;color:#fff;width:24px;height:24px;border-radius:50%;cursor:pointer;font-size:12px;display:flex;align-items:center;justify-content:center;transition:background 0.15s}
#cwx:hover{background:rgba(255,255,255,0.3)}
#cwm{flex:1;overflow-y:auto;padding:12px;display:flex;flex-direction:column;gap:10px;background:#f9f5f5}
.mr{display:flex;align-items:flex-end;gap:5px}
.mr.u{flex-direction:row-reverse}
.mav{width:22px;height:22px;border-radius:50%;flex-shrink:0;display:flex;align-items:center;justify-content:center;font-size:9px;font-weight:700}
.bav{background:#7B1113;color:#fff}
.uav{background:#4CAF50;color:#fff}
.bub{max-width:83%;padding:8px 10px;border-radius:12px;font-size:12px;line-height:1.6}
.bb{background:#fff;color:#333;border:1px solid #e0e0e0;border-bottom-left-radius:2px}
.ub{background:#7B1113;color:#fff;border-bottom-right-radius:2px}
.bm{font-size:9px;color:#bbb;margin-top:2px;padding:0 2px}
.mr.u .bm{text-align:right}
.ptag{display:inline-block;background:#e8f5e9;color:#2E7D32;font-size:9px;padding:1px 6px;border-radius:5px;margin-bottom:3px;border:1px solid #a5d6a7}
#cwt{display:none;padding:0 12px;flex-shrink:0}
.tbub{display:flex;gap:3px;align-items:center;padding:8px 11px!important}
.dot{width:5px;height:5px;border-radius:50%;background:#bbb;animation:bn 1.2s infinite}
.dot:nth-child(2){animation-delay:0.2s}
.dot:nth-child(3){animation-delay:0.4s}
@keyframes bn{0%,60%,100%{transform:translateY(0)}30%{transform:translateY(-4px)}}
#cwe{display:none;background:#fff3e0;color:#e65100;font-size:11px;padding:6px 12px;text-align:center;flex-shrink:0;border-top:1px solid #ffcc80}
#cws{padding:6px 10px;display:flex;gap:5px;flex-wrap:wrap;flex-shrink:0;background:#fff;border-top:1px solid #f0f0f0}
.sb2{background:#f9f5f5;border:1px solid #ddd;border-radius:11px;padding:4px 8px;font-size:10px;cursor:pointer;color:#555;transition:all 0.15s}
.sb2:hover{background:#7B1113;color:#fff;border-color:#7B1113}
#cwia{padding:8px 10px;border-top:1px solid #e0e0e0;background:#fff;display:flex;gap:7px;align-items:flex-end;flex-shrink:0;border-radius:0 0 14px 14px}
#cwi{flex:1;border:1px solid #ddd;border-radius:15px;padding:7px 12px;font-size:12px;font-family:Arial,sans-serif;resize:none;outline:none;min-height:32px;max-height:66px;line-height:1.5;color:#333;background:#f9f9f9}
#cwi:focus{border-color:#7B1113;background:#fff}
#cwsnd{width:32px;height:32px;border-radius:50%;background:#7B1113;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:background 0.15s}
#cwsnd:hover{background:#9B1315}
#cwsnd:disabled{background:#ccc;cursor:not-allowed}

/* RESPONSIVE */
@media(max-width:768px){
  #hero{padding:24px 20px;flex-direction:column}
  #hero-stats{width:100%}
  #layout{grid-template-columns:1fr}
  #sidebar{display:flex;flex-wrap:wrap;gap:4px;padding:12px;border-right:none;border-bottom:1px solid #e0e0e0}
  .sb-ttl{display:none}
  .sbln{border-left:none;border-radius:16px;padding:6px 12px;border:1px solid #e0e0e0}
  .sbln.active{border-color:#7B1113}
  #wiki{max-height:none;padding:16px}
  #ftop{grid-template-columns:1fr}
  #navbar{padding:0 16px}
  #footer{padding:24px 20px}
  #chat-win{width:calc(100vw - 24px);right:12px}
  #fab{right:12px;bottom:12px}
}