/* NexusVault — cyber theme */
:root{
  --bg:#050810; --bg2:#0a1120; --panel:rgba(255,255,255,.035); --panel2:rgba(255,255,255,.06);
  --line:rgba(148,163,184,.16); --line2:rgba(148,163,184,.3);
  --txt:#e2e8f0; --dim:#8b98ad; --faint:#5b6b82;
  --cyan:#22d3ee; --violet:#a855f7; --green:#34d399; --red:#f87171; --amber:#fbbf24;
  --grad:linear-gradient(120deg,#22d3ee,#818cf8 55%,#a855f7);
  --mono:'JetBrains Mono',ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --sans:'Inter','PingFang SC','Microsoft YaHei',system-ui,-apple-system,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  min-height:100vh;display:flex;flex-direction:column;
  background:
    radial-gradient(1200px 700px at 85% -10%,rgba(168,85,247,.14),transparent 60%),
    radial-gradient(900px 600px at -10% 20%,rgba(34,211,238,.12),transparent 55%),
    linear-gradient(180deg,var(--bg),var(--bg2));
  color:var(--txt);font-family:var(--sans);
}
::selection{background:rgba(34,211,238,.35)}
#bgfx{position:fixed;inset:0;z-index:0;opacity:.55;pointer-events:none}
.scanlines{position:fixed;inset:0;z-index:1;pointer-events:none;opacity:.05;mix-blend-mode:overlay;
  background:repeating-linear-gradient(0deg,transparent 0 2px,#7dd3fc 2px 3px)}

/* ---------- top bar ---------- */
.topbar{position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;
  padding:14px 28px;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  background:rgba(5,8,16,.72);border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--txt)}
.logo{width:30px;height:30px;filter:drop-shadow(0 0 8px rgba(34,211,238,.6))}
.brand-name{font-size:1.15rem;font-weight:800;letter-spacing:.4px}
.brand-name em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.badge{margin-left:6px;font-family:var(--mono);font-size:.62rem;letter-spacing:1.2px;padding:3px 9px;border-radius:999px;
  border:1px solid var(--line2);color:var(--dim);text-transform:uppercase;white-space:nowrap}
.badge.edge{color:var(--cyan);border-color:rgba(34,211,238,.5);box-shadow:0 0 12px rgba(34,211,238,.15) inset}
.topnav{display:flex;gap:6px}
.navlink{position:relative;padding:8px 14px;border-radius:10px;color:var(--dim);text-decoration:none;font-size:.9rem;
  transition:color .15s,background .15s;white-space:nowrap}
.navlink:hover{color:var(--txt);background:var(--panel)}
.navlink.active{color:var(--txt);background:var(--panel2)}
.navlink.active::after{content:'';position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:var(--grad)}

main{position:relative;z-index:5;flex:1;width:100%;max-width:1240px;margin:0 auto;padding:26px 28px 60px}
.footer{position:relative;z-index:5;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  padding:18px 28px;border-top:1px solid var(--line);font-family:var(--mono);font-size:.68rem;
  letter-spacing:1.5px;color:var(--faint)}

/* ---------- hero ---------- */
.hero{margin:14px 0 30px;padding:38px 36px;border-radius:22px;position:relative;overflow:hidden;
  background:linear-gradient(160deg,rgba(34,211,238,.09),rgba(168,85,247,.08) 60%,rgba(10,17,32,.4));
  border:1px solid var(--line)}
.hero::before{content:'';position:absolute;inset:-40%;background:
  conic-gradient(from 90deg at 50% 50%,transparent 0 40%,rgba(34,211,238,.08) 47%,transparent 54%,rgba(168,85,247,.08) 61%,transparent 68%);
  animation:spin 14s linear infinite;pointer-events:none}
@keyframes spin{to{transform:rotate(360deg)}}
.hero h1{font-size:clamp(1.6rem,3.4vw,2.5rem);font-weight:900;letter-spacing:.5px;position:relative}
.hero h1 .grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p{margin-top:10px;color:var(--dim);max-width:640px;line-height:1.7;position:relative}
.hero .stats{display:flex;gap:26px;margin-top:22px;flex-wrap:wrap;position:relative}
.stat .num{font-family:var(--mono);font-size:1.35rem;font-weight:700;background:var(--grad);
  -webkit-background-clip:text;background-clip:text;color:transparent}
.stat .lbl{font-size:.72rem;color:var(--faint);letter-spacing:1.5px;text-transform:uppercase;margin-top:2px}

/* ---------- toolbar ---------- */
.toolbar{display:flex;gap:12px;align-items:center;margin-bottom:20px;flex-wrap:wrap}
.search{flex:1;min-width:220px;position:relative}
.search input{width:100%;padding:12px 16px 12px 42px;border-radius:12px;border:1px solid var(--line);
  background:var(--panel);color:var(--txt);font-size:.95rem;outline:none;transition:border .15s,box-shadow .15s}
.search input:focus{border-color:rgba(34,211,238,.55);box-shadow:0 0 0 3px rgba(34,211,238,.12)}
.search svg{position:absolute;left:14px;top:50%;transform:translateY(-50%);width:17px;height:17px;stroke:var(--faint)}
.cats{display:flex;gap:8px;flex-wrap:wrap}
.chip{padding:7px 14px;border-radius:999px;border:1px solid var(--line);background:transparent;color:var(--dim);
  font-size:.8rem;cursor:pointer;transition:all .15s;font-family:var(--mono);letter-spacing:.5px}
.chip:hover{color:var(--txt);border-color:var(--line2)}
.chip.on{color:#04121c;background:var(--grad);border-color:transparent;font-weight:700}

/* ---------- cards grid ---------- */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:18px}
.card{position:relative;border-radius:16px;border:1px solid var(--line);background:var(--panel);
  padding:20px;display:flex;flex-direction:column;gap:12px;overflow:hidden;
  transition:transform .18s,border-color .18s,box-shadow .18s;animation:rise .35s both}
.card:hover{transform:translateY(-4px);border-color:rgba(34,211,238,.45);box-shadow:0 14px 40px -18px rgba(34,211,238,.35)}
@keyframes rise{from{opacity:0;transform:translateY(14px)}to{opacity:1}}
.card .ic{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;overflow:hidden;
  background:linear-gradient(135deg,rgba(34,211,238,.16),rgba(168,85,247,.16));border:1px solid var(--line2)}
.card .ic svg{width:22px;height:22px;stroke:var(--cyan)}
.card .ic img{width:100%;height:100%;object-fit:cover;display:block}
.card .thumb-wrap{position:relative}
.card .play-badge{position:absolute;right:8px;bottom:8px;width:26px;height:26px;border-radius:999px;
  background:rgba(5,8,16,.72);backdrop-filter:blur(4px);display:grid;place-items:center;
  border:1px solid rgba(34,211,238,.5)}
.card .play-badge svg{width:12px;height:12px;stroke:var(--cyan);fill:var(--cyan)}
.card .preview-btn{margin-left:auto}

/* ---------- preview modal ---------- */
.pv-mask{position:fixed;inset:0;z-index:60;background:rgba(3,6,12,.82);backdrop-filter:blur(10px);
  display:grid;place-items:center;animation:fadein .18s both}
@keyframes fadein{from{opacity:0}to{opacity:1}}
.pv-box{width:min(960px,94vw);max-height:92vh;display:flex;flex-direction:column;border-radius:18px;
  border:1px solid var(--line2);background:linear-gradient(170deg,rgba(34,211,238,.05),rgba(168,85,247,.04)),var(--bg2);
  box-shadow:0 40px 120px -30px rgba(0,0,0,.9);overflow:hidden;animation:pvpop .22s both}
@keyframes pvpop{from{opacity:0;transform:scale(.96) translateY(12px)}to{opacity:1}}
.pv-head{display:flex;align-items:center;gap:12px;padding:14px 18px;border-bottom:1px solid var(--line)}
.pv-head h3{font-size:.95rem;word-break:break-all;flex:1}
.pv-head .dim{font-family:var(--mono);font-size:.7rem;color:var(--faint);white-space:nowrap}
.pv-body{flex:1;overflow:auto;min-height:200px;max-height:calc(92vh - 130px);display:grid;place-items:center;
  background:repeating-conic-gradient(rgba(255,255,255,.03) 0% 25%,transparent 0% 50%) 50%/22px 22px}
.pv-body img{max-width:100%;max-height:calc(92vh - 130px);object-fit:contain}
.pv-body video{max-width:100%;max-height:calc(92vh - 130px);outline:none}
.pv-body audio{width:min(520px,88%);margin:40px auto;display:block}
.pv-body iframe{width:100%;height:calc(92vh - 130px);border:0;background:#fff}
.pv-body pre{width:100%;margin:0;padding:18px 22px;overflow:auto;font-family:var(--mono);font-size:.8rem;
  line-height:1.65;color:#c9d6f0;place-self:stretch}
.pv-body pre code{white-space:pre}
.pv-foot{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:12px 18px;border-top:1px solid var(--line)}
.pv-foot .meta{font-family:var(--mono);font-size:.72rem;color:var(--faint)}
.pv-loading{color:var(--dim);font-family:var(--mono);font-size:.8rem;display:grid;place-items:center;height:160px}
.pv-err{color:var(--red);font-size:.85rem;padding:40px;text-align:center}
.card h3{font-size:1.02rem;font-weight:700;word-break:break-all;line-height:1.4}
.card .desc{color:var(--dim);font-size:.83rem;line-height:1.65;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.card .meta{display:flex;gap:14px;font-family:var(--mono);font-size:.72rem;color:var(--faint);flex-wrap:wrap}
.card .meta b{color:var(--dim);font-weight:500}
.card .foot{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-top:auto;padding-top:6px}
.cat-tag{font-family:var(--mono);font-size:.68rem;padding:3px 10px;border-radius:999px;color:var(--cyan);
  border:1px solid rgba(34,211,238,.35);background:rgba(34,211,238,.07);white-space:nowrap}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 18px;border-radius:11px;
  border:1px solid var(--line2);background:var(--panel2);color:var(--txt);font-size:.88rem;font-weight:600;
  cursor:pointer;text-decoration:none;transition:all .15s;font-family:inherit;white-space:nowrap}
.btn:hover{border-color:rgba(34,211,238,.6);box-shadow:0 0 18px rgba(34,211,238,.2)}
.btn.primary{background:var(--grad);border-color:transparent;color:#04121c;font-weight:800}
.btn.primary:hover{filter:brightness(1.12);box-shadow:0 6px 26px -6px rgba(34,211,238,.55)}
.btn.danger{color:var(--red);border-color:rgba(248,113,113,.4)}
.btn.danger:hover{background:rgba(248,113,113,.1);border-color:var(--red);box-shadow:0 0 16px rgba(248,113,113,.2)}
.btn.sm{padding:7px 13px;font-size:.8rem;border-radius:9px}
.btn:disabled{opacity:.45;cursor:not-allowed;box-shadow:none!important}

/* ---------- admin ---------- */
.login-wrap{min-height:56vh;display:grid;place-items:center}
.login-card{width:min(400px,92vw);border-radius:20px;border:1px solid var(--line);padding:34px 30px;
  background:linear-gradient(170deg,rgba(34,211,238,.06),rgba(168,85,247,.05)),var(--bg2);
  box-shadow:0 30px 80px -30px rgba(0,0,0,.7)}
.login-card h2{font-size:1.3rem;margin-bottom:4px}
.login-card .sub{color:var(--faint);font-size:.82rem;margin-bottom:24px;font-family:var(--mono);letter-spacing:1px}
.field{margin-bottom:16px}
.field label{display:block;font-size:.75rem;color:var(--dim);letter-spacing:1.5px;text-transform:uppercase;margin-bottom:7px;font-family:var(--mono)}
.field input,.field textarea,.field select{width:100%;padding:11px 14px;border-radius:11px;border:1px solid var(--line);
  background:rgba(5,8,16,.6);color:var(--txt);font-size:.92rem;outline:none;font-family:inherit;transition:border .15s,box-shadow .15s}
.field input:focus,.field textarea:focus,.field select:focus{border-color:rgba(34,211,238,.55);box-shadow:0 0 0 3px rgba(34,211,238,.12)}
.field textarea{resize:vertical;min-height:70px}
.field input[type=file]{padding:9px}
.err{color:var(--red);font-size:.82rem;margin-top:10px;min-height:1.2em}

.panel-head{display:flex;justify-content:space-between;align-items:center;gap:14px;margin-bottom:20px;flex-wrap:wrap}
.panel-head h2{font-size:1.25rem}
.panel-head .dim{color:var(--faint);font-size:.8rem;font-family:var(--mono)}

.drop{border:2px dashed var(--line2);border-radius:16px;padding:34px 20px;text-align:center;cursor:pointer;
  transition:all .18s;background:rgba(255,255,255,.02);margin-bottom:22px}
.drop:hover,.drop.over{border-color:var(--cyan);background:rgba(34,211,238,.05);box-shadow:0 0 30px rgba(34,211,238,.12) inset}
.drop .big{font-size:1.02rem;font-weight:700;margin:10px 0 4px}
.drop .hint{color:var(--faint);font-size:.78rem;font-family:var(--mono)}

.upload-queue{margin-bottom:22px;display:flex;flex-direction:column;gap:12px}
.uq-item{border:1px solid var(--line);border-radius:14px;padding:14px 16px;background:var(--panel)}
.uq-top{display:flex;justify-content:space-between;gap:10px;align-items:center;margin-bottom:9px;flex-wrap:wrap}
.uq-name{font-weight:700;font-size:.92rem;word-break:break-all}
.uq-pct{font-family:var(--mono);font-size:.8rem;color:var(--cyan)}
.bar{height:6px;border-radius:99px;background:rgba(255,255,255,.07);overflow:hidden}
.bar>i{display:block;height:100%;border-radius:99px;background:var(--grad);width:0;transition:width .2s}
.uq-sub{display:flex;gap:12px;font-family:var(--mono);font-size:.7rem;color:var(--faint);margin-top:7px;align-items:center;flex-wrap:wrap}
.uq-sub .link{color:var(--red);cursor:pointer}
.uq-sub .link.ok{color:var(--green)}
.uq-item.st-error{border-color:rgba(248,113,113,.4)}
.uq-item.st-error .uq-pct{color:var(--red)}

.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 14px}
@media(max-width:640px){.form-grid{grid-template-columns:1fr}.hero{padding:26px 22px}.topbar{padding:12px 16px}main{padding:20px 16px 48px}}

/* ---------- toast ---------- */
#toast-wrap{position:fixed;right:20px;bottom:20px;z-index:99;display:flex;flex-direction:column;gap:10px}
.toast{padding:12px 18px;border-radius:12px;border:1px solid var(--line2);background:rgba(10,17,32,.92);
  backdrop-filter:blur(10px);font-size:.86rem;box-shadow:0 10px 34px -10px rgba(0,0,0,.6);
  animation:tin .25s both;max-width:340px}
.toast.ok{border-color:rgba(52,211,153,.55);color:var(--green)}
.toast.err{border-color:rgba(248,113,113,.55);color:var(--red)}
@keyframes tin{from{opacity:0;transform:translateX(30px)}to{opacity:1}}
.empty{grid-column:1/-1;text-align:center;padding:70px 20px;color:var(--faint)}
.empty .big{font-size:2.6rem;margin-bottom:10px;opacity:.5}