:root{
  --bg:#07111f;--card:#0d1b2d;--card2:#101f34;--text:#f5f8ff;--muted:#9eacc0;
  --accent:#62d7ff;--accent2:#7d6cff;--line:rgba(255,255,255,.09);
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:
radial-gradient(circle at 50% -10%,rgba(98,215,255,.14),transparent 35%),
radial-gradient(circle at 90% 35%,rgba(125,108,255,.10),transparent 28%),var(--bg);
color:var(--text);font-family:Inter,Segoe UI,Arial,sans-serif;line-height:1.55}
a{color:inherit;text-decoration:none}.topbar{height:72px;display:flex;align-items:center;justify-content:space-between;
padding:0 6%;border-bottom:1px solid var(--line);background:rgba(7,17,31,.78);backdrop-filter:blur(14px);position:sticky;top:0;z-index:10}
.brand{font-size:21px;font-weight:800;letter-spacing:-.5px;display:flex;align-items:center;gap:9px}.brand-icon{width:34px;height:34px;
display:grid;place-items:center;border-radius:10px;background:linear-gradient(135deg,var(--accent),var(--accent2));color:#06101c}
.dot{color:var(--accent)}nav{display:flex;gap:28px;color:var(--muted);font-size:14px}nav a:hover{color:#fff}
.hero{max-width:1050px;margin:auto;padding:78px 20px 30px;text-align:center}.eyebrow{color:var(--accent);font-size:12px;font-weight:800;letter-spacing:2px}
.hero h1{font-size:clamp(38px,6vw,68px);line-height:1.03;letter-spacing:-2.7px;margin:14px auto 18px;max-width:850px}
.hero h1 span{background:linear-gradient(90deg,var(--accent),#b6a8ff);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-copy p{max-width:670px;margin:0 auto 36px;color:var(--muted);font-size:17px}.converter-card{max-width:760px;margin:auto;background:linear-gradient(145deg,rgba(16,31,52,.97),rgba(9,22,37,.97));
border:1px solid var(--line);border-radius:24px;padding:18px;box-shadow:0 25px 80px rgba(0,0,0,.35)}
.dropzone{min-height:280px;border:1.5px dashed rgba(98,215,255,.35);border-radius:18px;display:flex;flex-direction:column;align-items:center;justify-content:center;
background:rgba(98,215,255,.025);cursor:pointer;transition:.2s}.dropzone:hover,.dropzone.drag{background:rgba(98,215,255,.07);border-color:var(--accent)}
.upload-icon{width:58px;height:58px;border-radius:18px;background:rgba(98,215,255,.1);display:grid;place-items:center;color:var(--accent);font-size:29px;margin-bottom:10px}
.dropzone h2{margin:0 0 4px;font-size:22px}.dropzone p{margin:0 0 17px;color:var(--muted)}small{display:block;color:#718097;margin-top:13px}
.primary{display:inline-flex;justify-content:center;align-items:center;border:0;border-radius:12px;padding:13px 19px;background:linear-gradient(90deg,var(--accent),#7ab9ff);
color:#06101c;font-weight:800;cursor:pointer;font-size:15px;box-shadow:0 8px 30px rgba(98,215,255,.15)}.primary:hover{filter:brightness(1.08)}
.full{width:100%;margin-top:14px}.ghost{border:1px solid var(--line);background:transparent;color:var(--muted);padding:11px 15px;border-radius:12px;cursor:pointer}.ghost:hover{color:#fff;border-color:rgba(255,255,255,.2)}
.file-panel,.progress-panel,.result-panel,.error-panel{padding:20px}.hidden{display:none!important}.file-info{display:flex;align-items:center;gap:14px;padding:15px;border-radius:15px;background:rgba(255,255,255,.035)}
.file-symbol{width:46px;height:46px;border-radius:12px;display:grid;place-items:center;background:rgba(98,215,255,.1);color:var(--accent);font-size:22px}
.file-info strong,.file-info span{display:block}.file-info span{color:var(--muted);font-size:13px;margin-top:3px;word-break:break-all}.options{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:14px;text-align:left}
label{color:var(--muted);font-size:13px}select{display:block;width:100%;margin-top:6px;background:#091626;border:1px solid var(--line);color:#fff;border-radius:10px;padding:12px}
.progress-panel h3,.result-panel h3{margin:10px 0 3px}.progress-panel p,.result-panel p,.error-panel p{color:var(--muted);margin:0}.spinner{width:34px;height:34px;border:3px solid rgba(255,255,255,.1);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite;margin:auto}@keyframes spin{to{transform:rotate(360deg)}}
.progress-track{height:8px;background:#07111f;border-radius:10px;margin:18px 0;overflow:hidden}.progress-track div{height:100%;width:5%;background:linear-gradient(90deg,var(--accent),var(--accent2));transition:width .2s}
.success{width:58px;height:58px;border-radius:50%;display:grid;place-items:center;margin:auto;background:rgba(71,220,156,.12);color:#57e4a7;font-size:30px}
.trust-row{display:flex;justify-content:center;gap:22px;flex-wrap:wrap;color:#718097;font-size:12px;margin-top:18px}.ad-slot{max-width:900px;height:90px;margin:38px auto;border:1px dashed rgba(255,255,255,.1);display:grid;place-items:center;color:#506075;font-size:11px;letter-spacing:1px}
.features{max-width:1050px;margin:0 auto;padding:15px 20px 60px;display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.features article{background:rgba(255,255,255,.025);border:1px solid var(--line);border-radius:18px;padding:25px}.features article div{font-size:25px}.features h3{margin:9px 0 3px}.features p,.steps p{color:var(--muted);margin:0}
.content-section{max-width:1050px;margin:auto;padding:60px 20px}.content-section>h2{font-size:36px;letter-spacing:-1px;margin:8px 0 30px}.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.steps div{border-top:1px solid var(--line);padding-top:20px}.steps span{color:var(--accent);font-weight:800}.steps h3{margin:8px 0 4px}.faq details{border-bottom:1px solid var(--line);padding:18px 0}.faq summary{cursor:pointer;font-weight:700}.faq details p{color:var(--muted);max-width:750px}
footer{border-top:1px solid var(--line);padding:32px 6%;display:flex;align-items:center;justify-content:space-between;gap:20px;color:#738196;font-size:13px}.footer-links{display:flex;gap:18px}.footer-links a:hover{color:#fff}
@media(max-width:720px){nav{display:none}.topbar{padding:0 20px}.hero{padding-top:55px}.hero h1{letter-spacing:-1.7px}.options,.features,.steps{grid-template-columns:1fr}.trust-row{flex-direction:column;gap:7px}.ad-slot{margin:25px 20px}footer{flex-direction:column;align-items:flex-start}}

#cookieConsent{position:fixed;left:20px;right:20px;bottom:20px;z-index:50;max-width:920px;margin:auto;
background:#0d1b2d;border:1px solid rgba(255,255,255,.12);box-shadow:0 18px 55px rgba(0,0,0,.45);
border-radius:16px;padding:16px 18px;display:flex;align-items:center;justify-content:space-between;gap:18px}
#cookieConsent p{margin:4px 0 0;color:#9eacc0;font-size:13px}.cookie-actions{display:flex;gap:8px;flex-shrink:0}
@media(max-width:720px){#cookieConsent{flex-direction:column;align-items:stretch}.cookie-actions{justify-content:stretch}.cookie-actions>*{flex:1}}


/* v5 visual polish */
.hero-badge{display:inline-flex;align-items:center;gap:7px;padding:7px 12px;border:1px solid rgba(98,215,255,.18);background:rgba(98,215,255,.05);border-radius:999px;color:#a9c7d8;font-size:12px;font-weight:700}
.mini-stats{display:flex;justify-content:center;gap:10px;flex-wrap:wrap;margin-top:22px}.mini-stats span{padding:8px 12px;border:1px solid var(--line);border-radius:999px;background:rgba(255,255,255,.025);color:#7f91a8;font-size:12px}.mini-stats b{color:#dbeeff}
.intro-features article{transition:transform .2s ease,border-color .2s ease,background .2s ease}.intro-features article:hover{transform:translateY(-3px);border-color:rgba(98,215,255,.2);background:rgba(98,215,255,.035)}
.seo-intro{padding-top:25px;padding-bottom:20px}.seo-intro p{max-width:820px;color:var(--muted);font-size:16px}
.converter-links article a{color:#fff}.converter-links article:hover h3 a{color:var(--accent)}
.ad-slot{position:relative;overflow:hidden;background:rgba(255,255,255,.012);border-radius:12px}.ad-slot span{position:absolute;top:7px;left:10px;font-size:9px;color:#39485b;letter-spacing:1.5px}.ad-slot div{font-size:11px;color:#506075}
.menu-toggle{display:none;border:1px solid var(--line);background:rgba(255,255,255,.03);color:#fff;border-radius:10px;padding:9px 11px;font-size:18px;cursor:pointer}
@media(max-width:720px){.menu-toggle{display:block}nav{position:absolute;left:15px;right:15px;top:66px;display:none;flex-direction:column;gap:0;padding:8px;background:rgba(9,22,37,.98);border:1px solid var(--line);border-radius:14px;box-shadow:0 18px 50px rgba(0,0,0,.35)}nav a{padding:12px 14px;border-radius:9px}body.menu-open nav{display:flex}.hero-badge{font-size:11px}.mini-stats{gap:7px}.mini-stats span{padding:7px 9px}.seo-intro{padding-top:20px}}