:root {
  --bg: #080810;
  --surface: #10101e;
  --surface2: #181828;
  --border: rgba(255,255,255,0.07);
  --accent: #00e5ff;
  --accent2: #6c3aed;
  --accent3: #ff4d6d;
  --text: #eeeef5;
  --muted: #64647a;
  --success: #00c896;
  --radius: 16px;
}
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--text);font-family:'DM Sans',sans-serif;min-height:100vh;overflow-x:hidden;line-height:1.6}
body::before{content:'';position:fixed;inset:0;background-image:linear-gradient(rgba(0,229,255,0.025) 1px,transparent 1px),linear-gradient(90deg,rgba(0,229,255,0.025) 1px,transparent 1px);background-size:64px 64px;pointer-events:none;z-index:0}
.orb{position:fixed;border-radius:50%;filter:blur(140px);pointer-events:none;z-index:0}
.orb1{width:700px;height:700px;background:rgba(0,229,255,0.05);top:-300px;left:-200px}
.orb2{width:600px;height:600px;background:rgba(108,58,237,0.06);bottom:-200px;right:-100px}
nav{position:sticky;top:0;z-index:100;display:flex;align-items:center;justify-content:space-between;padding:18px 48px;border-bottom:1px solid var(--border);background:rgba(8,8,16,0.85);backdrop-filter:blur(20px)}
.logo{font-family:'Syne',sans-serif;font-weight:800;font-size:1.25rem;letter-spacing:-0.5px;text-decoration:none;color:var(--text)}
.logo span{color:var(--accent)}
.nav-links{display:flex;gap:32px;list-style:none}
.nav-links a{color:var(--muted);text-decoration:none;font-size:0.88rem;transition:color 0.2s}
.nav-links a:hover{color:var(--text)}
.btn-dl{background:linear-gradient(135deg,var(--accent),#00b8d9);color:#000;border:none;border-radius:12px;padding:15px 28px;font-family:'Syne',sans-serif;font-weight:700;font-size:0.92rem;cursor:pointer;transition:all 0.2s;white-space:nowrap;letter-spacing:0.3px}
.btn-dl:hover{transform:translateY(-1px);box-shadow:0 8px 32px rgba(0,229,255,0.28)}
.btn-dl:disabled{opacity:0.55;cursor:not-allowed;transform:none;box-shadow:none}
.badge{display:inline-flex;align-items:center;gap:7px;background:rgba(0,229,255,0.07);border:1px solid rgba(0,229,255,0.18);color:var(--accent);font-size:0.75rem;font-weight:600;padding:6px 16px;border-radius:100px;margin-bottom:32px;letter-spacing:1px;text-transform:uppercase}
.badge-dot{width:6px;height:6px;background:var(--accent);border-radius:50%;animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:0.3;transform:scale(0.6)}}
.card{background:var(--surface);border:1px solid var(--border);border-radius:22px;padding:36px;position:relative;overflow:hidden}
.card::before{content:'';position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(0,229,255,0.5),transparent)}
.section{position:relative;z-index:1;max-width:960px;margin:0 auto;padding:0 24px 90px}
.sec-label{font-size:0.72rem;text-transform:uppercase;letter-spacing:2.5px;color:var(--accent);font-weight:700;text-align:center;margin-bottom:10px}
.sec-title{font-family:'Syne',sans-serif;font-size:clamp(1.7rem,3vw,2.4rem);font-weight:800;text-align:center;margin-bottom:12px;letter-spacing:-0.5px}
.sec-desc{text-align:center;color:var(--muted);font-size:0.95rem;max-width:500px;margin:0 auto 52px}
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:20px}
.step-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:28px 24px;transition:border-color 0.2s,transform 0.2s}
.step-card:hover{border-color:rgba(0,229,255,0.14);transform:translateY(-3px)}
.step-num{font-family:'Syne',sans-serif;font-size:3rem;font-weight:800;color:rgba(0,229,255,0.08);line-height:1;margin-bottom:14px}
.step-icon{font-size:1.8rem;margin-bottom:12px}
.step-title{font-family:'Syne',sans-serif;font-size:1rem;font-weight:700;margin-bottom:8px}
.step-desc{font-size:0.84rem;color:var(--muted);line-height:1.65}
.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px}
.feat-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:26px 22px;transition:border-color 0.2s}
.feat-card:hover{border-color:rgba(0,229,255,0.13)}
.feat-icon{font-size:1.6rem;margin-bottom:12px}
.feat-title{font-family:'Syne',sans-serif;font-weight:700;font-size:0.95rem;margin-bottom:7px}
.feat-desc{font-size:0.82rem;color:var(--muted);line-height:1.65}
.faq-list{display:flex;flex-direction:column;gap:10px;max-width:740px;margin:0 auto}
.faq-item{background:var(--surface);border:1px solid var(--border);border-radius:12px;overflow:hidden}
.faq-q{padding:18px 22px;font-weight:500;font-size:0.93rem;cursor:pointer;display:flex;justify-content:space-between;align-items:center;user-select:none;transition:color 0.2s}
.faq-q:hover{color:var(--accent)}
.faq-arrow{transition:transform 0.3s;color:var(--muted)}
.faq-item.open .faq-arrow{transform:rotate(180deg);color:var(--accent)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 0.3s ease,padding 0.3s;color:var(--muted);font-size:0.87rem;line-height:1.7;padding:0 22px}
.faq-item.open .faq-a{max-height:200px;padding:0 22px 18px}
.ad-slot{background:var(--surface);border:1px dashed rgba(255,255,255,0.06);border-radius:12px;display:flex;align-items:center;justify-content:center;color:var(--muted);font-size:0.72rem;letter-spacing:1px;text-transform:uppercase;margin:24px 0}
.ad-728{height:90px}
.ad-970{height:120px;max-width:970px;margin:0 auto 60px}
.disclaimer{background:rgba(108,58,237,0.06);border:1px solid rgba(108,58,237,0.15);border-radius:10px;padding:12px 18px;font-size:0.77rem;color:var(--muted);text-align:center;margin-top:22px;line-height:1.6}
.url-input{flex:1;background:var(--surface2);border:1px solid var(--border);border-radius:12px;padding:15px 20px;color:var(--text);font-family:'DM Sans',sans-serif;font-size:0.95rem;outline:none;transition:border-color 0.25s,box-shadow 0.25s}
.url-input::placeholder{color:var(--muted)}
.url-input:focus{border-color:rgba(0,229,255,0.35);box-shadow:0 0 0 3px rgba(0,229,255,0.08)}
.input-row{display:flex;gap:12px;margin-bottom:18px}
.detected{display:none;align-items:center;gap:8px;font-size:0.83rem;color:var(--muted);margin-bottom:14px}
.detected.show{display:flex}
.platform-tag{background:rgba(0,229,255,0.09);border:1px solid rgba(0,229,255,0.2);color:var(--accent);padding:3px 10px;border-radius:6px;font-size:0.78rem;font-weight:600}
.quality-row{display:none;gap:8px;flex-wrap:wrap;align-items:center;margin-bottom:20px}
.quality-row.show{display:flex}
.ql{font-size:0.82rem;color:var(--muted);margin-right:4px}
.qbtn{background:var(--surface2);border:1px solid var(--border);color:var(--muted);padding:6px 14px;border-radius:8px;font-size:0.8rem;font-weight:500;cursor:pointer;font-family:'DM Sans',sans-serif;transition:all 0.2s}
.qbtn.active,.qbtn:hover{background:rgba(0,229,255,0.09);border-color:rgba(0,229,255,0.28);color:var(--accent)}
.loading{display:none;flex-direction:column;align-items:center;gap:14px;padding:24px 0 8px}
.loading.show{display:flex}
.spinner{width:38px;height:38px;border:3px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin 0.75s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.loading p{color:var(--muted);font-size:0.88rem}
.err-box{display:none;background:rgba(255,77,109,0.07);border:1px solid rgba(255,77,109,0.22);border-radius:10px;padding:13px 16px;color:var(--accent3);font-size:0.86rem;margin-top:14px;gap:9px;align-items:center}
.err-box.show{display:flex}
.result-box{display:none;margin-top:20px}
.result-box.show{display:block}
.result-inner{background:var(--surface2);border:1px solid var(--border);border-radius:14px;overflow:hidden}
.result-head{display:flex;align-items:center;gap:14px;padding:16px 20px;border-bottom:1px solid var(--border)}
.thumb-wrap{width:76px;height:50px;border-radius:8px;background:var(--surface);display:flex;align-items:center;justify-content:center;font-size:1.5rem;flex-shrink:0;overflow:hidden}
.thumb-wrap img{width:100%;height:100%;object-fit:cover}
.result-info{flex:1;min-width:0}
.result-title{font-size:0.9rem;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-bottom:3px}
.result-meta{font-size:0.76rem;color:var(--muted)}
.dl-options{padding:14px 18px;display:flex;flex-direction:column;gap:10px}
.dl-opt{display:flex;align-items:center;justify-content:space-between;background:var(--surface);border:1px solid var(--border);border-radius:10px;padding:12px 16px;transition:border-color 0.2s}
.dl-opt:hover{border-color:rgba(255,255,255,0.1)}
.opt-left{display:flex;align-items:center;gap:10px}
.opt-icon{width:34px;height:34px;border-radius:8px;background:rgba(0,229,255,0.07);display:flex;align-items:center;justify-content:center;font-size:1rem}
.opt-label{font-size:0.87rem;font-weight:500}
.opt-meta{font-size:0.74rem;color:var(--muted);margin-top:1px}
.save-btn{background:linear-gradient(135deg,var(--accent),#00b8d9);color:#000;border:none;border-radius:8px;padding:9px 20px;font-family:'Syne',sans-serif;font-weight:700;font-size:0.8rem;cursor:pointer;text-decoration:none;display:inline-flex;align-items:center;gap:5px;transition:all 0.2s}
.save-btn:hover{box-shadow:0 4px 20px rgba(0,229,255,0.28);transform:translateY(-1px)}
footer{position:relative;z-index:1;border-top:1px solid var(--border);padding:40px 48px;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:20px}
.footer-logo{font-family:'Syne',sans-serif;font-weight:800;font-size:1.1rem;text-decoration:none;color:var(--text)}
.footer-logo span{color:var(--accent)}
.footer-links{display:flex;gap:24px;flex-wrap:wrap}
.footer-links a{color:var(--muted);text-decoration:none;font-size:0.83rem;transition:color 0.2s}
.footer-links a:hover{color:var(--text)}
.footer-copy{color:var(--muted);font-size:0.78rem}
.grad{background:linear-gradient(135deg,var(--accent) 0%,#7c3aed 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.fade-up{opacity:0;transform:translateY(24px);animation:fadeUp 0.7s ease forwards}
@keyframes fadeUp{to{opacity:1;transform:translateY(0)}}
.delay-1{animation-delay:0.1s}
.delay-2{animation-delay:0.22s}
.delay-3{animation-delay:0.34s}
.prose-page{position:relative;z-index:1;max-width:820px;margin:0 auto;padding:60px 24px 90px}
.prose-page h1{font-family:'Syne',sans-serif;font-size:2.2rem;font-weight:800;margin-bottom:8px;letter-spacing:-1px}
.prose-page .last-updated{color:var(--muted);font-size:0.82rem;margin-bottom:40px}
.prose-page h2{font-family:'Syne',sans-serif;font-size:1.3rem;font-weight:700;margin:36px 0 12px;color:var(--text)}
.prose-page p{color:var(--muted);font-size:0.92rem;line-height:1.85;margin-bottom:14px}
.prose-page ul{color:var(--muted);font-size:0.92rem;line-height:1.85;padding-left:22px;margin-bottom:14px}
.prose-page ul li{margin-bottom:6px}
.prose-page a{color:var(--accent);text-decoration:none}
.prose-page a:hover{text-decoration:underline}
@media(max-width:640px){nav{padding:16px 20px}.nav-links{display:none}.input-row{flex-direction:column}footer{flex-direction:column;text-align:center;padding:32px 20px}.card{padding:22px}}