:root{
  --pink:#fe2c55; --cyan:#25f4ee; --ink:#0f1115; --muted:#6b7280;
  --bg:#f6f7fb; --card:#ffffff; --line:#e6e8ef; --radius:14px;
  --shadow:0 6px 24px rgba(20,23,40,.08); --maxw:980px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
html,body{overflow-x:hidden;max-width:100%}
body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;
  color:var(--ink);background:var(--bg);line-height:1.6;overflow-wrap:break-word;word-wrap:break-word}
a{color:var(--pink);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;height:auto}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 18px}

/* Header */
.site-header{background:var(--card);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:60px}
.brand{display:flex;align-items:center;gap:8px;font-weight:800;font-size:20px;color:var(--ink)}
.brand:hover{text-decoration:none}
.brand__mark{display:inline-grid;place-items:center;width:30px;height:30px;border-radius:9px;
  background:linear-gradient(135deg,var(--pink),#ff5e7e);color:#fff;font-size:16px}
.nav{display:flex;gap:18px;flex-wrap:wrap}
.nav a{color:var(--muted);font-weight:600;font-size:15px}
.nav a.active,.nav a:hover{color:var(--ink);text-decoration:none}

/* Hero + form */
.hero{text-align:center;padding:46px 0 22px}
.hero h1{font-size:clamp(26px,5vw,40px);line-height:1.15;margin:0 0 12px;letter-spacing:-.5px}
.hero__sub{max-width:620px;margin:0 auto 26px;color:var(--muted);font-size:17px}
.hero__hint{color:var(--muted);font-size:13px;margin:10px 0 0;overflow-wrap:anywhere}
.dl-form{display:flex;gap:8px;max-width:680px;margin:0 auto;background:var(--card);
  padding:8px;border-radius:var(--radius);box-shadow:var(--shadow);border:1px solid var(--line);flex-wrap:wrap}
.dl-form input[type=url]{flex:1 1 240px;min-width:0;border:0;outline:0;padding:14px 14px;font-size:16px;
  background:transparent;color:var(--ink)}
.btn{cursor:pointer;border:0;border-radius:10px;font-weight:700;font-size:15px;padding:13px 20px;transition:.15s}
.btn--primary{background:var(--pink);color:#fff}
.btn--primary:hover{filter:brightness(1.05)}
.btn--ghost{background:#f1f2f7;color:var(--ink)}
.btn--block{display:block;width:100%}
.btn[disabled]{opacity:.6;cursor:progress}

/* Status / spinner */
.dl-status{margin:22px auto 0;max-width:680px;color:var(--muted)}
.spinner{display:inline-block;width:18px;height:18px;border:3px solid #d8dae6;border-top-color:var(--pink);
  border-radius:50%;animation:spin .8s linear infinite;vertical-align:-4px;margin-right:8px}
@keyframes spin{to{transform:rotate(360deg)}}
.dl-status.error{color:#b00020;font-weight:600}

/* Result card */
.dl-result{margin:24px auto 0;max-width:720px}
.result-card{display:flex;gap:18px;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius);box-shadow:var(--shadow);padding:18px;text-align:left;flex-wrap:wrap}
.result-card__cover{width:140px;flex:0 0 auto;border-radius:10px;overflow:hidden;background:#000;aspect-ratio:9/16}
.result-card__cover img{width:100%;height:100%;object-fit:cover}
.result-card__body{flex:1 1 260px;min-width:0}
.result-card__title{font-weight:700;margin:0 0 6px}
.result-card__meta{color:var(--muted);font-size:14px;margin:0 0 14px;display:flex;gap:14px;flex-wrap:wrap}
.dl-buttons{display:flex;flex-direction:column;gap:10px}
.dl-buttons a{display:flex;align-items:center;justify-content:space-between;gap:10px;
  background:#f7f8fc;border:1px solid var(--line);border-radius:10px;padding:12px 14px;color:var(--ink);font-weight:700}
.dl-buttons a:hover{border-color:var(--pink);text-decoration:none}
.dl-buttons a.primary{background:var(--pink);color:#fff;border-color:var(--pink)}
.dl-images{display:grid;grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:10px;margin-top:14px}
.dl-images a{display:block;border-radius:10px;overflow:hidden;border:1px solid var(--line)}

/* Sections */
section{margin:40px 0}
h2{font-size:clamp(20px,3.5vw,28px);text-align:center;margin:0 0 22px}
.grid{display:grid;gap:16px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:20px}
.card h3{margin:0 0 8px;font-size:18px}
.card p{margin:0;color:var(--muted)}
.steps__list{max-width:680px;margin:0 auto;padding-left:22px}
.steps__list li{margin:10px 0}
.link-more{display:inline-block;margin-top:8px;font-weight:700}

/* FAQ / details */
.qa{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:4px 16px;margin:10px auto;max-width:760px}
.qa summary{cursor:pointer;font-weight:700;padding:12px 0;list-style:none}
.qa summary::-webkit-details-marker{display:none}
.qa summary::after{content:"+";float:right;color:var(--pink);font-weight:800}
.qa[open] summary::after{content:"–"}
.qa__a{padding:0 0 14px;color:var(--muted)}

/* Prose pages */
.prose{max-width:780px;margin:0 auto;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius);padding:30px;}
.prose h1{font-size:clamp(24px,4vw,34px);margin-top:0}
.prose h2{text-align:left;margin:26px 0 10px}
.prose ul,.prose ol{padding-left:22px}
.prose li{margin:6px 0}
.breadcrumb{max-width:780px;margin:18px auto 10px;color:var(--muted);font-size:14px}
.cta-box{text-align:center;margin-top:24px}
.cta-box .btn{display:inline-block}

/* Ads */
.ad{margin:18px auto;text-align:center;max-width:var(--maxw)}
.ad__label{display:block;font-size:11px;letter-spacing:1px;text-transform:uppercase;color:#aab;margin-bottom:4px}
.ad__placeholder{border:1px dashed #c7cbe0;border-radius:10px;background:#fbfbfe;color:#aab;
  padding:28px 10px;font-size:13px}

/* Footer */
.site-footer{background:var(--card);border-top:1px solid var(--line);margin-top:50px;padding:34px 0 10px}
.footer-inner{display:grid;grid-template-columns:2fr 1fr 1fr;gap:24px}
.footer-col h4{margin:0 0 10px;font-size:15px}
.footer-col a{display:block;color:var(--muted);padding:3px 0;font-size:14px}
.footer-col a:hover{color:var(--ink)}
.muted{color:var(--muted);font-size:14px}
.copyright{border-top:1px solid var(--line);margin-top:20px;padding-top:14px;color:var(--muted);font-size:13px;text-align:center}

/* Download gate (interstitial) */
.gate-overlay{position:fixed;inset:0;background:rgba(10,12,20,.72);display:grid;place-items:center;z-index:1000;padding:16px}
.gate-overlay[hidden]{display:none}
.gate-box{background:#fff;border-radius:16px;max-width:440px;width:100%;padding:26px 24px;text-align:center;position:relative;box-shadow:0 24px 70px rgba(0,0,0,.35)}
.gate-close{position:absolute;top:6px;right:12px;background:none;border:0;font-size:28px;line-height:1;color:#9aa0b4;cursor:pointer;padding:4px}
.gate-close:hover{color:var(--ink)}
.gate-title{margin:0 0 14px;font-size:19px}
.gate-ad{min-height:60px;margin:8px 0;display:flex;justify-content:center;align-items:center;overflow:hidden}
.gate-status{color:var(--muted);font-weight:700;margin:14px 0 8px}
.gate-go{display:inline-block;margin-top:4px}

/* ===================== Responsive / mobile ===================== */
@media (max-width:900px){
  .grid-3{grid-template-columns:1fr 1fr}
}

@media (max-width:760px){
  .container{padding:0 15px}
  section{margin:28px 0}
  h2{margin-bottom:16px}

  /* Header: brand on top, tappable scrollable chip-nav below (no overflow) */
  .site-header{position:static}
  .header-inner{flex-direction:column;height:auto;gap:10px;padding:10px 0}
  .brand{font-size:19px}
  .nav{width:100%;flex-wrap:nowrap;overflow-x:auto;gap:8px;justify-content:flex-start;
    -webkit-overflow-scrolling:touch;scrollbar-width:none;padding:2px 0}
  .nav::-webkit-scrollbar{display:none}
  .nav a{flex:0 0 auto;white-space:nowrap;background:#f1f2f7;color:var(--ink);
    padding:9px 15px;border-radius:22px;font-size:14px}
  .nav a.active{background:var(--pink);color:#fff}

  .hero{padding:26px 0 14px}
  .hero h1{font-size:clamp(24px,7vw,32px)}
  .hero__sub{font-size:16px;margin-bottom:18px}
  .footer-inner{grid-template-columns:1fr 1fr;gap:18px}
}

@media (max-width:560px){
  .grid-3{grid-template-columns:1fr}
  .footer-inner{grid-template-columns:1fr;gap:8px}
  .footer-col h4{margin-bottom:4px}

  /* Download form: full-width input on its own row, then Paste + Download */
  .dl-form{padding:10px;gap:8px}
  .dl-form input[type=url]{flex:1 1 100%;padding:15px 12px;font-size:16px}
  #dl-paste{flex:1 1 28%}
  #dl-submit{flex:1 1 64%}
  .btn{padding:14px 16px;min-height:50px;font-size:16px}
  .hero__hint{font-size:12px}

  /* Result card stacks and centers */
  .result-card{flex-direction:column;align-items:center;text-align:center;gap:14px;padding:16px}
  .result-card__cover{width:160px}
  .result-card__body{flex:1 1 100%;width:100%}
  .result-card__meta{justify-content:center}
  .dl-buttons a{padding:15px 16px;font-size:16px}
  .dl-images{grid-template-columns:repeat(auto-fill,minmax(95px,1fr))}

  .card{padding:18px}
  .prose{padding:22px 18px}
  .qa{padding:2px 14px}
  .gate-box{padding:22px 18px}
}

/* Larger, comfortable tap targets on touch devices */
@media (hover:none){
  .nav a,.dl-buttons a,.btn,.qa summary{touch-action:manipulation}
}