:root{
  --paper:#FBFAF7;--ink:#16171B;--muted:#6B6E76;--line:#E6E3DC;--panel:#FFFFFF;
  --mark:#1F8A70;--mark-ink:#0E4A3B;--danger:#B23A32;--radius:10px;
  --shadow:0 1px 2px rgba(20,23,27,.04),0 8px 30px rgba(20,23,27,.06);
  --font:"Nunito",system-ui,-apple-system,sans-serif;
}
*{box-sizing:border-box}
html,body{margin:0;min-height:100%}
body{background:var(--paper);color:var(--ink);font-family:var(--font);display:flex;flex-direction:column;min-height:100vh;-webkit-font-smoothing:antialiased}
.hidden{display:none !important}

header{display:flex;align-items:center;justify-content:space-between;padding:16px 22px;border-bottom:1px solid var(--line);gap:12px;background:var(--paper);position:sticky;top:0;z-index:20}
.brand{text-decoration:none}
.brand .bar{display:inline-block;height:20px;width:78px;background:var(--ink);border-radius:3px;position:relative;overflow:hidden}
.brand .bar::after{content:"imgvault";position:absolute;inset:0;color:var(--paper);font-size:13px;font-weight:800;display:flex;align-items:center;justify-content:center;transform:translateX(-101%);animation:reveal 1.1s cubic-bezier(.2,.7,.2,1) .2s forwards}
@keyframes reveal{to{transform:translateX(0)}}
@media (prefers-reduced-motion:reduce){.brand .bar::after{animation:none;transform:none}}
.hdr-right{display:flex;align-items:center;gap:10px}
.vault-id{font-size:12.5px;color:var(--muted);font-weight:700;background:var(--panel);border:1px solid var(--line);border-radius:999px;padding:4px 10px}
.vault-id::before{content:"";display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--mark);margin-right:6px;vertical-align:0}
.tag{font-size:11px;font-weight:800;text-transform:uppercase;letter-spacing:.06em;background:var(--danger);color:#fff;border-radius:999px;padding:3px 9px}

.screen{flex:1}
.hero{padding:42px 22px 10px;max-width:760px;margin:0 auto;text-align:center}
.hero h1{font-size:34px;line-height:1.15;margin:0 0 10px;letter-spacing:-.015em}
.sub{color:var(--muted);font-size:15.5px;line-height:1.6;margin:0 0 14px}
.hero .sub{font-size:16.5px}

.choices{display:grid;grid-template-columns:1fr 1fr;gap:16px;max-width:760px;margin:22px auto 8px;padding:0 22px}
.choice{font-family:var(--font);text-align:left;cursor:pointer;background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:22px;display:flex;flex-direction:column;gap:6px;box-shadow:var(--shadow);transition:.15s;color:var(--ink)}
.choice:hover{border-color:var(--mark);transform:translateY(-1px)}
.choice strong{font-size:18px}
.choice span{color:var(--muted);font-size:14px;line-height:1.5}
.choice .ico{width:36px;height:36px;border-radius:9px;background:var(--ink);color:var(--paper);display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:800;margin-bottom:6px}

.content{padding:28px 22px 10px;max-width:760px;margin:0 auto}
.content h2{font-size:19px;margin:26px 0 8px}
.content p,.content li{line-height:1.7;font-size:15px}
.content ol{padding-left:22px}
.admin-note{border-left:3px solid var(--danger);padding-left:14px}

.panel{max-width:480px;margin:36px auto;padding:28px;background:var(--panel);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:12px}
.panel.wide{max-width:820px}
.panel h1{font-size:24px;margin:0}
.panel > div{display:flex;flex-direction:column;gap:12px}
.back{align-self:flex-start;background:none;border:0;padding:0;font-family:var(--font);color:var(--muted);font-weight:700;cursor:pointer;font-size:13.5px}
.back:hover{color:var(--ink)}

.field{display:flex;flex-direction:column;gap:6px;font-size:13px;font-weight:700}
input[type=password],input[type=search],select,textarea{font-family:var(--font);font-size:15px;padding:11px 12px;border:1px solid var(--line);border-radius:9px;background:#fff;color:var(--ink);width:100%}
input:focus,select:focus,textarea:focus,button:focus-visible,.drop:focus-visible{outline:2px solid var(--mark);outline-offset:1px}
textarea{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:12px;resize:vertical;word-break:break-all}
.check{display:flex;gap:10px;align-items:flex-start;font-size:13.5px;line-height:1.5;color:var(--ink);cursor:pointer}
.check input{margin-top:3px;accent-color:var(--mark);width:16px;height:16px;flex:none}
.hint{font-size:12.5px;color:var(--muted);line-height:1.55}
.error{color:var(--danger);font-size:13.5px;font-weight:700;margin:0}
.meter{height:5px;border-radius:5px;background:var(--line);overflow:hidden;margin-top:-4px}
.meter i{display:block;height:100%;width:0;transition:.2s;background:var(--danger)}
.meter i.ok{background:#C98A1B}.meter i.good{background:var(--mark)}
.label{font-size:11.5px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);font-weight:800}
.keycard{background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:12px 14px;display:flex;flex-direction:column;gap:4px}
.keycard code,.vrow code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:12px;word-break:break-all}
pre.cmd{background:var(--ink);color:var(--paper);border-radius:8px;padding:10px 12px;font-size:12.5px;margin:0;overflow:auto}

.btn{font-family:var(--font);font-size:14px;font-weight:700;cursor:pointer;border:1px solid var(--line);background:var(--panel);color:var(--ink);padding:10px 14px;border-radius:9px;transition:.12s;display:inline-flex;align-items:center;justify-content:center;gap:6px;white-space:nowrap}
.btn:hover{border-color:#cfccc3}
.btn.primary{background:var(--mark);border-color:var(--mark);color:#fff}
.btn.primary:hover{background:var(--mark-ink);border-color:var(--mark-ink)}
.btn.danger{color:var(--danger)}
.btn.danger:hover{border-color:var(--danger)}
.btn:disabled{opacity:.45;cursor:not-allowed}
.btn.block{width:100%}

.drop{border:1.5px dashed var(--line);border-radius:var(--radius);padding:26px 18px;text-align:center;background:var(--paper);color:var(--muted);cursor:pointer;display:flex;flex-direction:column;gap:4px;font-size:13.5px}
.drop strong{color:var(--ink);font-size:16px;word-break:break-all}
.drop.drag{border-color:var(--mark);background:#f2fbf8}
.drop.ready{border-style:solid;border-color:var(--mark);background:#f2fbf8}

.tabs{display:flex;gap:4px;background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:4px}
.tab{flex:1;font-family:var(--font);font-weight:700;font-size:13.5px;border:0;background:none;padding:8px;border-radius:7px;cursor:pointer;color:var(--muted)}
.tab[aria-selected=true]{background:var(--panel);color:var(--ink);box-shadow:var(--shadow)}

/* explorer */
.explorer{max-width:1240px;margin:0 auto;padding:20px 22px 40px}
.toolbar{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-bottom:16px}
.toolbar .search{flex:1;min-width:160px;max-width:340px;padding:9px 12px}
.toolbar .sort{width:auto;padding:9px 10px}
.count{color:var(--muted);font-size:13px;font-weight:700;margin-left:auto}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:14px}
.card{font-family:var(--font);text-align:left;padding:0;border:1px solid var(--line);border-radius:10px;background:var(--panel);overflow:hidden;cursor:pointer;transition:.12s;color:var(--ink);display:flex;flex-direction:column}
.card:hover{border-color:var(--mark);box-shadow:var(--shadow)}
.thumb{aspect-ratio:1/1;background:repeating-conic-gradient(#f3f1ec 0% 25%,#faf9f6 0% 50%) 50%/18px 18px;display:flex;align-items:center;justify-content:center;overflow:hidden}
.thumb img{width:100%;height:100%;object-fit:cover;display:block}
.thumb.loading{animation:pulse 1.2s ease-in-out infinite}
@keyframes pulse{50%{opacity:.55}}
.ph{font-size:12px;font-weight:800;color:var(--muted);letter-spacing:.05em}
.ph.err{color:var(--danger)}
.cap{padding:8px 10px 10px;display:flex;flex-direction:column;gap:2px;min-width:0}
.cap .nm{font-size:13.5px;font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.cap .sub{font-size:11.5px;color:var(--muted);margin:0}
.empty{border:1.5px dashed var(--line);border-radius:14px;padding:60px 20px;text-align:center;color:var(--muted);display:flex;flex-direction:column;gap:6px;font-size:14px}
.empty strong{color:var(--ink);font-size:18px}
.queue{border:1px solid var(--line);border-radius:10px;background:var(--panel);margin-bottom:14px;max-height:180px;overflow:auto}
.qrow{display:flex;justify-content:space-between;gap:12px;padding:8px 12px;font-size:13px;border-bottom:1px solid var(--line)}
.qrow:last-child{border-bottom:0}
.qrow .nm{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.qrow .st{color:var(--muted);font-weight:700;flex:none}
.qrow.ok .st{color:var(--mark)}.qrow.bad .st{color:var(--danger)}
.dropover{position:fixed;inset:0;z-index:50;background:rgba(31,138,112,.12);border:3px dashed var(--mark);display:flex;align-items:center;justify-content:center;pointer-events:none}
.dropover div{background:var(--panel);padding:16px 22px;border-radius:12px;font-weight:800;box-shadow:var(--shadow)}

/* admin vault list */
.vlist{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:10px;overflow:hidden}
.vrow{font-family:var(--font);display:flex;justify-content:space-between;gap:16px;align-items:center;padding:12px 14px;border:0;border-bottom:1px solid var(--line);background:var(--panel);cursor:pointer;text-align:left;color:var(--ink)}
.vrow:last-child{border-bottom:0}
.vrow:hover{background:#f2fbf8}
.vrow span{font-size:12.5px;color:var(--muted);flex:none}
.vlist .hint{padding:14px;margin:0}

/* lightbox */
.lightbox{position:fixed;inset:0;z-index:60;background:rgba(14,15,18,.94);display:flex;flex-direction:column}
.lb-top{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:12px 16px;color:#fff;flex-wrap:wrap}
.lb-info{display:flex;flex-direction:column;min-width:0}
.lb-info strong{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.lb-info span{font-size:12.5px;color:#b9bcc4}
.lb-actions{display:flex;gap:8px}
.lb-stage{flex:1;display:flex;align-items:center;justify-content:center;padding:8px 56px 24px;min-height:0}
.lb-stage img{max-width:100%;max-height:100%;object-fit:contain;border-radius:4px}
.lb-msg{color:#ddd;font-size:14px;max-width:360px;text-align:center}
.lb-nav{position:absolute;top:50%;transform:translateY(-50%);width:42px;height:42px;border-radius:50%;border:0;background:rgba(255,255,255,.12);color:#fff;font-size:26px;cursor:pointer;line-height:1}
.lb-nav:hover{background:rgba(255,255,255,.22)}
.lb-nav.prev{left:10px}.lb-nav.next{right:10px}

.spinner{width:28px;height:28px;border-radius:50%;border:3px solid rgba(127,127,127,.3);border-top-color:var(--mark);animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.busy{position:fixed;inset:0;z-index:70;background:rgba(251,250,247,.85);display:flex;flex-direction:column;gap:12px;align-items:center;justify-content:center;font-weight:700}

footer{border-top:1px solid var(--line);padding:12px 22px;background:var(--panel);font-size:12.5px;color:var(--muted);line-height:1.6}
footer a,.content a,.check a{color:var(--mark-ink);font-weight:700}
footer a{margin-left:8px}

/* subtle blur on user-side thumbnails */
.blur-thumbs .thumb img{filter:blur(1.5px);transform:scale(1.04)}
.thumb{position:relative}
.play{position:absolute;left:8px;bottom:8px;background:rgba(14,15,18,.72);color:#fff;font-size:11.5px;font-weight:800;border-radius:999px;padding:3px 9px}
.flagtag{position:absolute;right:8px;top:8px;background:var(--danger);color:#fff;font-size:11px;font-weight:800;border-radius:999px;padding:3px 9px;text-transform:uppercase;letter-spacing:.04em}
.card.flagged{border-color:#e7c3bf}
.ph.restricted{display:flex;flex-direction:column;align-items:center;gap:2px;color:var(--danger);text-transform:none;letter-spacing:0}
.ph.restricted b{font-size:14px}.ph.restricted span{font-size:11.5px;color:var(--muted);font-weight:700}
.lb-flag{font-size:12.5px;color:#ffb4ad;font-weight:700}
.lb-stage video{max-width:100%;max-height:100%;border-radius:4px;background:#000}

/* modal */
.modal{position:fixed;inset:0;z-index:80;background:rgba(14,15,18,.55);display:flex;align-items:center;justify-content:center;padding:16px}
.modal-card{background:var(--panel);border-radius:14px;box-shadow:var(--shadow);padding:22px;width:100%;max-width:400px;display:flex;flex-direction:column;gap:12px;font-size:14px;line-height:1.5;color:var(--ink)}
.modal-card strong{font-size:17px}
.modal-card a{color:var(--mark-ink);font-weight:700}
.modal-card .row{display:flex;gap:8px;justify-content:flex-end}
.hint.warn{color:var(--danger);font-weight:700}

@media (max-width:640px){
  header{padding:12px 16px}
  .hero{padding:28px 16px 6px}.hero h1{font-size:26px}
  .choices{grid-template-columns:1fr;padding:0 16px}
  .panel{margin:18px 12px;padding:20px}
  .explorer{padding:14px 12px 30px}
  .grid{grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:10px}
  .count{width:100%;margin-left:0}
  .lb-stage{padding:8px 8px 20px}
  .lb-nav{display:none}
  .vrow{flex-direction:column;align-items:flex-start;gap:4px}
}
.center-page{text-align:center;padding-top:80px}