:root{
  --bg:#0b0714;
  --panel:rgba(255,255,255,.04);
  --panel-brd:rgba(255,255,255,.09);
  --ink:#f4f0ff;
  --muted:#a89dc4;
  --grad1:#7c3aed;
  --grad2:#db2777;
  --grad3:#4f46e5;
  --accent:#f0abfc;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:'Vazirmatn',Tahoma,system-ui,sans-serif;
  background:var(--bg); color:var(--ink);
  -webkit-font-smoothing:antialiased;
}
.app-root{position:relative;min-height:100vh;display:flex;flex-direction:column;overflow-x:hidden}

/* atmospheric background */
.bg-fx{position:fixed;inset:0;z-index:0;pointer-events:none;
  background:
    radial-gradient(60vw 60vw at 85% -10%, rgba(124,58,237,.35), transparent 60%),
    radial-gradient(55vw 55vw at 5% 15%, rgba(219,39,119,.28), transparent 60%),
    radial-gradient(50vw 50vw at 60% 110%, rgba(79,70,229,.30), transparent 60%);
  filter:saturate(1.1);
}
.app-root>*{position:relative;z-index:1}
main{flex:1;width:100%}

/* nav */
.nav{position:sticky;top:0;z-index:50;backdrop-filter:blur(16px);
  background:rgba(11,7,20,.6);border-bottom:1px solid var(--panel-brd)}
.nav-inner{max-width:1180px;margin:0 auto;padding:.7rem 1.1rem;display:flex;align-items:center;justify-content:space-between;gap:1rem}
.brand{display:flex;align-items:center;gap:.5rem;background:none;border:none;cursor:pointer;color:var(--ink)}
.brand-mark{font-size:1.5rem;filter:drop-shadow(0 0 8px rgba(240,171,252,.6))}
.brand-name{font-weight:900;font-size:1.35rem;background:linear-gradient(90deg,var(--accent),#c4b5fd);-webkit-background-clip:text;background-clip:text;color:transparent}
.nav-links{display:flex;align-items:center;gap:.35rem}
.nav-link{background:none;border:none;color:var(--muted);font-family:inherit;font-size:.95rem;padding:.45rem .8rem;border-radius:.7rem;cursor:pointer;font-weight:600;transition:.2s}
.nav-link:hover{color:var(--ink);background:var(--panel)}
.nav-active{color:var(--accent)!important;background:rgba(240,171,252,.1)}
.nav-user{display:flex;align-items:center;gap:.5rem;margin-inline-start:.5rem}
.nav-username{font-size:.85rem;color:var(--accent);font-weight:700}
.hamburger{display:none;background:var(--panel);border:1px solid var(--panel-brd);color:var(--ink);font-size:1.2rem;border-radius:.6rem;width:42px;height:42px;cursor:pointer}

/* buttons */
.btn-primary,.btn-accent,.btn-ghost,.btn-ai{font-family:inherit;font-weight:800;border:none;cursor:pointer;border-radius:.85rem;padding:.75rem 1.4rem;font-size:1rem;transition:transform .15s,box-shadow .2s,filter .2s}
.btn-primary{color:#fff;background:linear-gradient(120deg,var(--grad3),var(--grad1))}
.btn-accent{color:#fff;background:linear-gradient(120deg,var(--grad1),var(--grad2))}
.btn-primary:hover,.btn-accent:hover{transform:translateY(-2px);box-shadow:0 10px 30px rgba(124,58,237,.4);filter:brightness(1.08)}
.btn-ghost{background:var(--panel);color:var(--ink);border:1px solid var(--panel-brd)}
.btn-ghost:hover{background:rgba(255,255,255,.09)}
.btn-primary:disabled,.btn-accent:disabled,.btn-ai:disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}
.sm{padding:.45rem .95rem!important;font-size:.85rem!important;border-radius:.7rem!important}
.full{width:100%}
.big{padding:.95rem;font-size:1.1rem;margin-top:.6rem}
.btn-ai{width:100%;margin-top:.7rem;background:linear-gradient(120deg,#312e81,#6d28d9);color:#e9d5ff;border:1px solid rgba(196,181,253,.4)}
.btn-ai:hover:not(:disabled){filter:brightness(1.15);box-shadow:0 0 24px rgba(139,92,246,.5)}

/* page */
.page{max-width:1180px;margin:0 auto;padding:2rem 1.1rem 4rem}
.narrow{max-width:720px}

/* hero */
.hero{position:relative;text-align:center;padding:4rem 1rem 3rem;overflow:hidden}
.hero-glow{position:absolute;inset:0;background:radial-gradient(40% 60% at 50% 30%,rgba(240,171,252,.18),transparent 70%)}
.hero-title{position:relative;font-size:clamp(2rem,6vw,3.6rem);font-weight:900;margin:0 0 .6rem;line-height:1.2;
  background:linear-gradient(100deg,#fff,#e9d5ff,#f0abfc);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{position:relative;color:var(--muted);font-size:clamp(1rem,2.5vw,1.25rem);font-weight:300;max-width:560px;margin:0 auto 2rem}
.hero-btns{position:relative;display:flex;gap:.9rem;justify-content:center;flex-wrap:wrap}

/* section */
.sec-title{text-align:center;font-weight:800;font-size:1.5rem;color:var(--ink);margin:2.5rem 0 1.6rem;letter-spacing:.5px}
.sec-title.right{text-align:right;margin-top:0}

/* grid + cards */
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.3rem}
.prompt-card{text-align:right;background:var(--panel);border:1px solid var(--panel-brd);border-radius:1.2rem;overflow:hidden;cursor:pointer;padding:0;font-family:inherit;transition:transform .22s,box-shadow .22s,border-color .22s;display:block;width:100%}
.prompt-card:hover{transform:translateY(-6px);border-color:rgba(240,171,252,.4);box-shadow:0 20px 44px rgba(0,0,0,.5)}
.card-img-wrap{position:relative;aspect-ratio:4/3;overflow:hidden;background:#1a1030}
.card-img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.prompt-card:hover .card-img{transform:scale(1.08)}
.card-overlay{position:absolute;inset:0;background:linear-gradient(0deg,rgba(11,7,20,.5),transparent 45%)}
.card-body{padding:.9rem 1rem 1.1rem}
.card-title{margin:0 0 .55rem;font-size:1.05rem;font-weight:700;color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.card-meta{display:flex;align-items:center;justify-content:space-between;gap:.5rem}
.card-user{color:var(--muted);font-size:.82rem;font-weight:600}
.policy-badge{display:inline-block;border:1px solid;border-radius:999px;font-weight:800;white-space:nowrap}

/* skeleton */
.skeleton{aspect-ratio:4/3;border-radius:1.2rem;background:linear-gradient(100deg,#1a1030 30%,#2a1a4a 50%,#1a1030 70%);background-size:200% 100%;animation:sk 1.3s infinite}
@keyframes sk{0%{background-position:200% 0}100%{background-position:-200% 0}}

/* empty / gate */
.empty,.gate{text-align:center;padding:3rem 1rem;color:var(--muted)}
.empty-emoji{font-size:3rem;margin-bottom:.6rem}
.empty p,.gate h2{margin:.4rem 0 1.2rem}
.gate h2{color:var(--ink)}

/* auth */
.auth-card,.upload-card,.about-card,.detail-card{background:var(--panel);border:1px solid var(--panel-brd);border-radius:1.4rem;padding:1.8rem;backdrop-filter:blur(10px)}
.auth-toggle{display:flex;background:rgba(0,0,0,.25);border-radius:.9rem;padding:.3rem;margin-bottom:1.4rem}
.auth-toggle button{flex:1;background:none;border:none;color:var(--muted);font-family:inherit;font-weight:800;padding:.65rem;border-radius:.7rem;cursor:pointer;transition:.2s}
.auth-toggle .on{background:linear-gradient(120deg,var(--grad1),var(--grad2));color:#fff}
.auth-title{margin:0 0 1.1rem;font-size:1.25rem}
.auth-note{color:var(--muted);font-size:.82rem;line-height:1.7;margin:.6rem 0 1rem}
.auth-switch{background:none;border:none;color:var(--accent);font-family:inherit;cursor:pointer;margin-top:1rem;width:100%;font-weight:600}

/* inputs */
.input{width:100%;background:rgba(0,0,0,.28);border:1px solid var(--panel-brd);color:var(--ink);font-family:inherit;font-size:1rem;padding:.8rem 1rem;border-radius:.85rem;margin-bottom:.9rem;transition:.2s}
.input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(240,171,252,.2)}
.input.area{resize:vertical;line-height:1.7}
.flabel{display:block;font-weight:700;margin:.4rem 0 .5rem;color:var(--muted);font-size:.9rem}

/* dropzone */
.dropzone{border:2px dashed var(--panel-brd);border-radius:1.1rem;min-height:180px;display:flex;align-items:center;justify-content:center;cursor:pointer;overflow:hidden;transition:.2s;background:rgba(0,0,0,.2)}
.dropzone.drag{border-color:var(--accent);background:rgba(240,171,252,.08)}
.drop-hint{text-align:center;color:var(--muted)}
.drop-hint p{margin:0}
.preview{width:100%;max-height:340px;object-fit:contain}

/* radios */
.radios{display:flex;flex-direction:column;gap:.55rem;margin-bottom:.6rem}
.radio-row{display:flex;align-items:center;gap:.7rem;padding:.7rem .9rem;border:1px solid var(--panel-brd);border-radius:.9rem;cursor:pointer;transition:.2s;font-weight:600}
.radio-row:hover{background:var(--panel)}
.radio-row.sel{background:rgba(240,171,252,.08);border-color:var(--accent)}
.radio-dot{width:20px;height:20px;border:2px solid;border-radius:50%;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.radio-dot span{width:10px;height:10px;border-radius:50%;display:block}

/* detail */
.back{background:none;border:none;color:var(--accent);font-family:inherit;cursor:pointer;font-weight:700;margin-bottom:1rem;font-size:.95rem}
.detail-card.warn{border-color:rgba(239,68,68,.4)}
.detail-img-wrap{border-radius:1rem;overflow:hidden;margin-bottom:1.2rem;background:#160d2b}
.detail-img{width:100%;max-height:520px;object-fit:contain;display:block}
.detail-title{font-size:1.7rem;font-weight:900;margin:0 0 .4rem}
.detail-creator{color:var(--muted);margin-bottom:1.3rem}
.detail-creator b{color:var(--accent)}
.detail-block{margin-bottom:1.3rem}
.block-label{display:block;font-size:.78rem;color:var(--muted);font-weight:700;margin-bottom:.5rem;letter-spacing:.5px}
.prompt-text{background:rgba(0,0,0,.3);border:1px solid var(--panel-brd);border-radius:.9rem;padding:1rem;line-height:2;margin:0;white-space:pre-wrap}
.policy-line{display:flex;align-items:center;gap:.8rem;flex-wrap:wrap}
.policy-desc{color:var(--muted);font-size:.9rem}
.detail-actions{display:flex;gap:.8rem;flex-wrap:wrap;margin-top:1.6rem}
.detail-actions button{flex:1;min-width:160px}

/* profile */
.profile-head{display:flex;align-items:center;gap:1rem;margin-bottom:2rem}
.avatar{width:64px;height:64px;border-radius:50%;background:linear-gradient(120deg,var(--grad1),var(--grad2));display:flex;align-items:center;justify-content:center;font-size:1.6rem;font-weight:900;color:#fff;flex-shrink:0}
.profile-name{margin:0;font-size:1.4rem}
.profile-email{margin:.2rem 0 0;color:var(--muted);font-size:.9rem}
.mine-wrap{position:relative}
.del-btn{position:absolute;top:.7rem;left:.7rem;background:rgba(239,68,68,.9);color:#fff;border:none;border-radius:.6rem;padding:.35rem .8rem;font-family:inherit;font-weight:700;cursor:pointer;font-size:.8rem;backdrop-filter:blur(4px)}
.del-btn:hover{background:#dc2626}

/* about */
.about-text{line-height:2.1;color:#d6cef0;margin:0 0 1.4rem}
.rules-toggle{background:var(--panel);border:1px solid var(--panel-brd);color:var(--ink);font-family:inherit;font-weight:700;padding:.7rem 1rem;border-radius:.8rem;cursor:pointer;width:100%;text-align:right}
.rules{margin:1rem 0;padding-inline-start:1.2rem;line-height:2.2;color:#d6cef0}
.contact{margin-top:1.4rem;color:var(--muted)}
.contact a,.footer a{color:var(--accent);text-decoration:none}
.contact a:hover,.footer a:hover{text-decoration:underline}

/* footer */
.footer{border-top:1px solid var(--panel-brd);padding:1.6rem 1rem;text-align:center;color:var(--muted);font-size:.85rem}
.footer p{margin:.3rem 0}
.footer-links{display:flex;gap:.4rem;justify-content:center;align-items:center}

/* toast */
.toast-wrap{position:fixed;bottom:1.2rem;left:50%;transform:translateX(-50%);z-index:200;display:flex;flex-direction:column;gap:.5rem;align-items:center;width:90%;max-width:420px}
.toast{padding:.8rem 1.2rem;border-radius:.9rem;font-weight:700;backdrop-filter:blur(12px);box-shadow:0 10px 30px rgba(0,0,0,.4);animation:pop .3s;width:fit-content;max-width:100%;text-align:center}
.toast-info{background:rgba(79,70,229,.85);color:#fff}
.toast-ok{background:rgba(34,197,94,.9);color:#04220f}
.toast-err{background:rgba(239,68,68,.92);color:#fff}
@keyframes pop{from{transform:translateY(14px);opacity:0}to{transform:translateY(0);opacity:1}}

/* view transition */
.fade-in{animation:fade .4s ease}
@keyframes fade{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}

/* responsive */
@media(max-width:860px){.grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){
  .grid{grid-template-columns:1fr}
  .hamburger{display:block}
  .nav-links{position:absolute;top:100%;right:0;left:0;flex-direction:column;align-items:stretch;background:rgba(11,7,20,.97);backdrop-filter:blur(16px);border-bottom:1px solid var(--panel-brd);padding:.6rem;gap:.3rem;max-height:0;overflow:hidden;transition:max-height .3s;pointer-events:none}
  .nav-open{max-height:400px;pointer-events:auto;padding:.8rem}
  .nav-link{text-align:right}
  .nav-user{margin:0;justify-content:space-between}
  .detail-actions button{flex:1 1 100%}
}