:root{
  --blue:#0d3b66;         /* آبی کربنی */
  --blue-2:#155a94;
  --blue-ink:#08294a;
  --blue-soft:#eef4fb;
  --orange:#f77f00;       /* نارنجی مکمل */
  --orange-2:#ffa142;
  --orange-soft:#fff4e7;
  --ink:#182740;
  --muted:#5d6f88;
  --line:#e3eaf4;
  --radius:18px;
  --shadow-sm:0 2px 12px rgba(13,59,102,.07);
  --shadow:0 16px 40px rgba(13,59,102,.12);
}
*{margin:0;padding:0;box-sizing:border-box}
[hidden]{display:none!important}
html{scroll-behavior:smooth}
body{
  font-family:Vazirmatn,Tahoma,sans-serif;background:#fff;color:var(--ink);
  font-size:15.5px;line-height:1.9;min-height:100vh;display:flex;flex-direction:column;
}
body::before{
  content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;background:
  radial-gradient(620px 300px at 88% -60px, rgba(247,127,0,.08), transparent 60%),
  radial-gradient(720px 360px at 8% -70px, rgba(13,59,102,.09), transparent 60%);
}
img{max-width:100%}
.container{width:100%;max-width:1080px;margin-inline:auto;padding-inline:20px}

/* ---------- Topbar ---------- */
.topbar{background:linear-gradient(90deg,var(--blue-ink),var(--blue));color:#dbe7f5;font-size:13px}
.topbar-inner{display:flex;justify-content:space-between;align-items:center;min-height:38px;gap:12px;flex-wrap:wrap}
.topbar a{color:#ffd9ad;text-decoration:none;font-weight:700}
.topbar a:hover{color:#fff}

/* ---------- Header ---------- */
.header{background:rgba(255,255,255,.88);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:78px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:14px;text-decoration:none}
.logo{width:52px;height:52px;flex:none;border-radius:15px;background:linear-gradient(135deg,var(--blue) 40%,var(--blue-2) 70%,var(--orange));display:grid;place-items:center;color:#fff;box-shadow:var(--shadow-sm)}
.logo svg{width:27px;height:27px}
.brand-text h1{font-size:18.5px;font-weight:800;color:var(--blue-ink)}
.brand-text p{font-size:12.5px;color:var(--muted)}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:none;cursor:pointer;
  font:inherit;font-weight:700;font-size:14px;text-decoration:none;border-radius:12px;
  padding:10px 20px;transition:.22s ease}
.btn:active{transform:scale(.98)}
.btn:disabled{opacity:.55;cursor:not-allowed;transform:none}
.btn-primary{background:linear-gradient(135deg,var(--blue),var(--blue-2));color:#fff;box-shadow:0 8px 22px rgba(13,59,102,.30)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(13,59,102,.38)}
.btn-orange{background:linear-gradient(135deg,var(--orange),var(--orange-2));color:#fff;box-shadow:0 8px 22px rgba(247,127,0,.32)}
.btn-orange:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(247,127,0,.40)}
.btn-outline{background:#fff;border:1.5px solid var(--blue);color:var(--blue)}
.btn-outline:hover{background:var(--blue);color:#fff}
.btn-ghost{background:var(--blue-soft);color:var(--blue)}
.btn-ghost:hover{background:#dfeaf7}
.btn-lg{width:100%;padding:15px;font-size:16px;border-radius:14px}
.btn-sm{padding:7px 14px;font-size:12.5px;border-radius:10px}

/* ---------- Hero ---------- */
.hero{padding:58px 20px 30px;text-align:center}
.eyebrow{display:inline-block;background:var(--orange-soft);color:#c05e00;border:1px solid #ffd9ad;
  font-size:12.5px;font-weight:700;padding:6px 18px;border-radius:999px;margin-bottom:16px}
.hero h2{font-size:clamp(25px,4.5vw,40px);font-weight:900;color:var(--blue-ink);line-height:1.6}
.accent{background:linear-gradient(90deg,var(--orange),var(--orange-2));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{max-width:640px;margin:14px auto 0;color:var(--muted);font-size:15px}
.chips{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:20px}
.chip{display:inline-flex;align-items:center;gap:7px;background:var(--blue-soft);color:var(--blue);
  border:1px solid #d3e2f3;padding:7px 15px;border-radius:999px;font-size:13px;font-weight:600}
.chip.orange{background:var(--orange-soft);color:#b35c00;border-color:#ffe0bd}

/* ---------- Generator Card ---------- */
.generator-card{background:#fff;border:1px solid var(--line);border-radius:calc(var(--radius) + 6px);
  box-shadow:var(--shadow);padding:28px}
.generator-card label{display:block;font-weight:800;color:var(--blue-ink);margin-bottom:12px;font-size:15.5px}
textarea{width:100%;min-height:150px;resize:vertical;border:1.5px solid var(--line);border-radius:14px;
  padding:14px 16px;font:inherit;font-size:15px;color:var(--ink);background:#fbfdff;outline:none;transition:.2s}
textarea:focus{border-color:var(--blue);box-shadow:0 0 0 4px rgba(13,59,102,.10);background:#fff}
.form-meta{display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap;margin:12px 2px 18px}
#charCount{font-size:12.5px;color:var(--muted)}
.badges{display:flex;gap:8px;flex-wrap:wrap}
.badge{font-size:12px;font-weight:700;padding:5px 13px;border-radius:999px;border:1px solid}
.badge-blue{background:var(--blue-soft);color:var(--blue);border-color:#cfe0f2}
.badge-orange{background:var(--orange-soft);color:#c05e00;border-color:#ffdfb8}
.hint{font-size:12.5px;color:var(--muted);margin-top:12px;text-align:center}

/* ---------- Result ---------- */
.server-result{margin-top:30px}
.result-card{background:#fff;border:1px solid var(--line);border-radius:calc(var(--radius) + 4px);
  box-shadow:var(--shadow);padding:26px}
.result-header{display:flex;align-items:center;gap:10px;margin-bottom:18px}
.result-header h2{font-size:18px;font-weight:800;color:var(--blue-ink)}
.ok-icon{width:34px;height:34px;flex:none;border-radius:50%;background:#e7f7ee;color:#15803d;
  display:grid;place-items:center;font-weight:900;font-size:16px}
.result-figure{margin:0;border-radius:16px;overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-sm);background:var(--blue-soft)}
.result-figure img{display:block;width:100%;aspect-ratio:16/9;object-fit:cover;animation:fadeIn .5s ease}
@keyframes fadeIn{from{opacity:0;transform:scale(.985)}to{opacity:1;transform:none}}
.prompt-box{background:var(--blue-soft);border:1px solid #d3e2f3;border-radius:14px;padding:14px 16px;margin-top:18px}
.prompt-box strong{color:var(--blue);font-size:13px}
.prompt-box p{font-size:14px;margin-top:4px;word-break:break-word}
.result-meta{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}
.meta-chip{font-size:12px;background:#f4f7fb;border:1px solid var(--line);color:var(--muted);
  border-radius:999px;padding:4px 13px}
.result-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:20px}

/* ---------- Loading ---------- */
.loading-box{text-align:center;padding:34px 10px}
.spinner{width:56px;height:56px;margin-inline:auto;border-radius:50%;
  border:4px solid var(--blue-soft);border-top-color:var(--orange);animation:spin .9s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.status-text{color:var(--muted);margin-top:16px;font-size:14px;min-height:24px}
.progress{height:6px;max-width:340px;margin:16px auto 0;background:var(--blue-soft);border-radius:99px;overflow:hidden}
.progress span{display:block;height:100%;width:45%;border-radius:99px;
  background:linear-gradient(90deg,var(--blue),var(--orange));animation:slide 1.7s ease-in-out infinite}
@keyframes slide{0%{transform:translateX(170%)}100%{transform:translateX(-270%)}}

/* ---------- Alerts & Toast ---------- */
.alert{border-radius:14px;padding:16px 18px;border:1px solid;margin:16px 0}
.alert p{margin-top:6px;word-break:break-word}
.alert-error{background:#fef2f2;border-color:#fecaca;color:#b91c1c}
.toast{position:fixed;bottom:26px;left:50%;transform:translate(-50%,20px);background:#b91c1c;color:#fff;
  padding:12px 24px;border-radius:12px;font-size:14px;font-weight:600;opacity:0;pointer-events:none;
  transition:.3s;z-index:100;box-shadow:var(--shadow)}
.toast.show{opacity:1;transform:translate(-50%,0)}

/* ---------- Recent & Gallery ---------- */
.recent{margin:60px auto 70px}
.section-head{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:18px;flex-wrap:wrap}
.section-title{font-size:20px;font-weight:800;color:var(--blue-ink);display:flex;align-items:center;gap:10px}
.section-title::before{content:"";width:6px;height:22px;border-radius:4px;
  background:linear-gradient(var(--orange),var(--orange-2));display:inline-block}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:16px}
.thumb{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;
  box-shadow:var(--shadow-sm);transition:.25s}
.thumb:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;display:block}
.thumb figcaption{padding:10px 13px;font-size:12.5px;color:var(--muted);border-top:1px solid var(--line);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

.gallery-page{margin:40px auto 60px;flex:1}
.gallery-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:18px;margin-top:6px}
.gallery-item{background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;
  box-shadow:var(--shadow-sm);transition:.25s;display:flex;flex-direction:column}
.gallery-item:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.gallery-item img{width:100%;aspect-ratio:16/9;object-fit:cover;display:block}
.gallery-info{padding:14px 16px;display:flex;flex-direction:column;gap:8px;flex:1}
.g-prompt{font-size:13.5px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.g-meta{display:flex;justify-content:space-between;font-size:11.5px;color:var(--muted)}
.g-actions{margin-top:auto;padding-top:6px}
.center{text-align:center;margin:36px 0 10px}

/* ---------- Footer ---------- */
.footer{background:var(--blue-ink);color:#c9d7e8;padding:34px 0;font-size:13.5px;margin-top:auto}
.footer-inner{display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap}
.footer strong{color:#fff;font-size:15px}
.footer-links{display:flex;gap:18px;flex-wrap:wrap}
.footer-links a{color:#ffd9ad;text-decoration:none;font-weight:600}
.footer-links a:hover{color:#fff}

/* ---------- Responsive ---------- */
@media (max-width:640px){
  .hero{padding:38px 20px 22px}
  .header-inner{justify-content:center;text-align:center}
  .generator-card{padding:20px}
  .result-card{padding:18px}
  .grid{grid-template-columns:repeat(auto-fill,minmax(160px,1fr))}
  .textarea{min-height:120px}
}