*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#0b0d17;--surface:rgba(255,255,255,0.04);--surface-h:rgba(255,255,255,0.07);
  --border:rgba(255,255,255,0.07);--border-a:rgba(99,102,241,0.3);
  --text:#e2e8f0;--muted:#64748b;--dim:#475569;
  --pri:#6366f1;--pri-g:rgba(99,102,241,0.18);--cyan:#22d3ee;
  --sd:#f59e0b;--sd-g:rgba(245,158,11,0.15);
  --hd:#10b981;--hd-g:rgba(16,185,129,0.15);
  --r:14px;--rs:8px;
}
html{scroll-behavior:smooth}
body{font-family:'Inter',-apple-system,sans-serif;background:var(--bg);color:var(--text);min-height:100vh;overflow-x:hidden;line-height:1.65;font-size:15px}
a{color:var(--pri);text-decoration:none;transition:color .2s}a:hover{color:var(--cyan)}
img{max-width:100%;display:block}

/* BG */
.bg-glow{position:fixed;inset:0;z-index:-1;overflow:hidden;pointer-events:none}
.glow{position:absolute;border-radius:50%;filter:blur(140px);opacity:.3;animation:gfloat 25s ease-in-out infinite}
.glow-1{width:500px;height:500px;background:#6366f1;top:-8%;left:-4%}
.glow-2{width:400px;height:400px;background:#ec4899;bottom:-8%;right:-4%;animation-delay:-9s}
.glow-3{width:320px;height:320px;background:#22d3ee;top:45%;left:55%;animation-delay:-16s}
@keyframes gfloat{0%,100%{transform:translate(0,0) scale(1)}33%{transform:translate(35px,-25px) scale(1.04)}66%{transform:translate(-18px,18px) scale(.96)}}

/* NAV */
.nav{display:flex;align-items:center;justify-content:space-between;padding:16px 24px;max-width:1200px;margin:0 auto}
.logo{display:flex;align-items:center;gap:10px;font-size:22px;font-weight:800;letter-spacing:-.3px;color:#fff}
.logo-mark{width:34px;height:34px;background:linear-gradient(135deg,var(--pri),var(--cyan));border-radius:9px;display:flex;align-items:center;justify-content:center}
.logo-mark svg{width:20px;height:20px;stroke:#fff;fill:none;stroke-width:2.2}
.logo .x{background:linear-gradient(135deg,var(--pri),var(--cyan));-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.nav-links{display:flex;gap:24px;align-items:center}
.nav-links a{color:var(--muted);font-size:13px;font-weight:500}
.nav-links a:hover{color:#fff}

/* HERO */
.hero{text-align:center;padding:56px 24px 32px;max-width:800px;margin:0 auto}
.hero h1{font-size:42px;font-weight:900;letter-spacing:-.8px;line-height:1.15;margin-bottom:12px}
.hero h1 .grad{background:linear-gradient(135deg,var(--pri),var(--cyan));-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.hero p{color:var(--muted);font-size:16px;max-width:560px;margin:0 auto 28px}
.search-box{position:relative;max-width:480px;margin:0 auto}
.search-box input{width:100%;padding:14px 18px 14px 46px;border-radius:var(--r);border:1px solid var(--border);background:var(--surface);color:#fff;font-size:15px;font-family:inherit;outline:none;transition:border .25s}
.search-box input:focus{border-color:var(--pri)}
.search-box .search-icon{position:absolute;left:16px;top:50%;transform:translateY(-50%);color:var(--muted)}
.search-box .search-icon svg{width:18px;height:18px;stroke:currentColor;fill:none}

/* GRID */
.section{max-width:1200px;margin:0 auto;padding:0 24px}
.section-title{font-size:24px;font-weight:700;margin-bottom:6px}
.section-sub{color:var(--muted);font-size:14px;margin-bottom:24px}
.conv-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:14px;margin-bottom:48px}
.conv-card{display:flex;align-items:center;gap:12px;padding:16px;border-radius:var(--r);border:1px solid var(--border);background:var(--surface);cursor:pointer;transition:all .25s;text-decoration:none;color:var(--text)}
.conv-card:hover{border-color:var(--border-a);background:var(--surface-h);transform:translateY(-2px);box-shadow:0 6px 24px rgba(0,0,0,.25)}
.conv-card .arrow{color:var(--pri);flex-shrink:0}
.conv-card .arrow svg{width:18px;height:18px;stroke:currentColor;fill:none}
.conv-card .fmt{font-weight:700;font-size:14px;white-space:nowrap}
.conv-card .fmt.from-fmt{color:var(--cyan)}
.conv-card .fmt.to-fmt{color:var(--pri)}

/* PAGINATION */
.pagination{display:flex;justify-content:center;align-items:center;gap:6px;margin:28px 0 8px;flex-wrap:wrap}
.pagination button{width:38px;height:38px;border-radius:var(--rs);border:1px solid var(--border);background:var(--surface);color:var(--muted);font-size:13px;font-weight:600;cursor:pointer;font-family:inherit;transition:all .2s;display:flex;align-items:center;justify-content:center}
.pagination button:hover{border-color:var(--pri);color:#fff;background:var(--pri-g)}
.pagination button.active{background:var(--pri);border-color:var(--pri);color:#fff;box-shadow:0 0 16px var(--pri-g)}
.pagination button.nav-btn{width:auto;padding:0 14px;gap:6px;font-size:12px}
.pagination button:disabled{opacity:.3;cursor:default;pointer-events:none}
.pagination .dots{color:var(--muted);font-size:13px;padding:0 4px}

/* CONVERTER TOOL */
.tool{max-width:960px;margin:0 auto;padding:0 24px}
.drop-zone{border:2px dashed var(--border);border-radius:var(--r);padding:56px 28px;text-align:center;cursor:pointer;transition:all .3s;background:var(--surface);backdrop-filter:blur(16px)}
.drop-zone:hover,.drop-zone.drag-over{border-color:var(--pri);background:var(--pri-g);transform:translateY(-2px);box-shadow:0 8px 32px var(--pri-g)}
.drop-zone .dz-icon{margin:0 auto 14px;color:var(--muted)}
.drop-zone .dz-icon svg{width:48px;height:48px;stroke:currentColor;fill:none;stroke-width:1.4}
.drop-zone h2{font-size:20px;font-weight:700;margin-bottom:4px}
.drop-zone p{color:var(--muted);font-size:13px}
.accept-badge{display:inline-block;padding:3px 10px;border-radius:16px;font-size:11px;font-weight:600;background:var(--pri-g);color:var(--pri);border:1px solid rgba(99,102,241,.12);margin:12px 4px 0;letter-spacing:.4px}

/* SETTINGS */
.settings-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:24px}
.card{background:var(--surface);backdrop-filter:blur(16px);border:1px solid var(--border);border-radius:var(--r);padding:22px;animation:fadeUp .45s ease}
.card-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px}
.card-head h3{font-size:15px;font-weight:600;display:flex;align-items:center;gap:8px}
.card-head h3 svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:1.8;color:var(--pri)}
.prev-wrap{width:100%;aspect-ratio:16/10;border-radius:var(--rs);overflow:hidden;background:rgba(0,0,0,.3);display:flex;align-items:center;justify-content:center;margin-bottom:14px}
.prev-wrap img{max-width:100%;max-height:100%;object-fit:contain}
.info-rows{display:flex;flex-direction:column;gap:7px}
.info-r{display:flex;justify-content:space-between;font-size:12.5px}
.info-l{color:var(--muted)}.info-v{font-weight:600}
.reduction{color:var(--hd);font-weight:700}

/* PRESETS */
.presets{display:flex;flex-direction:column;gap:14px;margin-bottom:20px}
.preset{border-radius:var(--rs);padding:14px;border:1px solid var(--border);background:rgba(0,0,0,.18)}
.preset.sd{border-color:rgba(245,158,11,.18)}.preset.hd{border-color:rgba(16,185,129,.18)}
.preset-h{display:flex;align-items:center;gap:9px;margin-bottom:10px;font-weight:500;font-size:13px}
.badge{padding:3px 9px;border-radius:5px;font-size:10px;font-weight:700;letter-spacing:.5px}
.badge.sd{background:var(--sd-g);color:var(--sd)}.badge.hd{background:var(--hd-g);color:var(--hd)}
.det-r{display:flex;justify-content:space-between;font-size:11.5px;color:var(--muted);margin-bottom:3px}
.det-r span:last-child{font-weight:600;color:var(--text)}
.slider{-webkit-appearance:none;width:100%;height:4px;border-radius:4px;background:rgba(255,255,255,.08);outline:none;margin:6px 0}
.slider::-webkit-slider-thumb{-webkit-appearance:none;width:15px;height:15px;border-radius:50%;cursor:pointer;transition:transform .15s}
.slider::-webkit-slider-thumb:hover{transform:scale(1.25)}
.slider.s-sd::-webkit-slider-thumb{background:var(--sd);box-shadow:0 0 8px var(--sd-g)}
.slider.s-hd::-webkit-slider-thumb{background:var(--hd);box-shadow:0 0 8px var(--hd-g)}

/* BUTTONS */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 20px;border:none;border-radius:var(--rs);font-size:14px;font-weight:700;cursor:pointer;font-family:inherit;transition:all .25s}
.btn svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:2}
.btn-pri{width:100%;background:linear-gradient(135deg,#6366f1,#4f46e5);color:#fff;padding:14px}
.btn-pri:hover{transform:translateY(-2px);box-shadow:0 6px 28px var(--pri-g)}
.btn-ghost{padding:8px 14px;border:1px solid var(--border);background:transparent;color:var(--muted);font-size:12px;cursor:pointer;border-radius:var(--rs);font-family:inherit;transition:all .2s}
.btn-ghost:hover{border-color:var(--pri);color:#fff}
.btn-dl{width:100%;padding:14px;margin-top:10px}
.btn-dl.dl-sd{background:linear-gradient(135deg,#f59e0b,#d97706);color:#000}
.btn-dl.dl-hd{background:linear-gradient(135deg,#10b981,#059669);color:#fff}
.btn-dl:hover{transform:translateY(-2px);box-shadow:0 5px 20px rgba(0,0,0,.3)}

/* RESULTS */
.res-title{text-align:center;font-size:26px;font-weight:800;margin-bottom:4px}
.res-sub{text-align:center;color:var(--muted);font-size:14px;margin-bottom:28px}
.res-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.res-card{background:var(--surface);backdrop-filter:blur(16px);border:1px solid var(--border);border-radius:var(--r);padding:22px;position:relative;overflow:hidden;animation:fadeUp .45s ease}
.res-card.hd-card{border-color:rgba(16,185,129,.18);animation-delay:.1s}
.ribbon{position:absolute;top:14px;right:-34px;background:linear-gradient(135deg,#10b981,#059669);color:#fff;padding:3px 40px;font-size:10px;font-weight:700;letter-spacing:.5px;transform:rotate(45deg);box-shadow:0 2px 8px rgba(16,185,129,.3)}
.res-head{display:flex;align-items:center;gap:9px;margin-bottom:14px}
.res-fmt{font-size:13px;color:var(--muted);font-weight:500}
.convert-another{display:block;margin:28px auto 0;padding:11px 24px;font-size:13px}

/* BREADCRUMB */
.bread{max-width:960px;margin:0 auto;padding:16px 24px 0;font-size:12px;color:var(--muted)}
.bread a{color:var(--muted)}.bread a:hover{color:var(--pri)}
.bread span{margin:0 6px;opacity:.4}

/* CONTENT SECTIONS */
.content{max-width:800px;margin:40px auto 0;padding:0 24px}
.content h2{font-size:22px;font-weight:700;margin:32px 0 10px}
.content h3{font-size:17px;font-weight:600;margin:20px 0 8px}
.content p{color:var(--muted);font-size:14px;line-height:1.75;margin-bottom:14px}
.content ul{color:var(--muted);font-size:14px;padding-left:20px;margin-bottom:14px}
.content li{margin-bottom:6px}

/* FAQ */
.faq{max-width:800px;margin:40px auto 0;padding:0 24px 48px}
.faq h2{font-size:22px;font-weight:700;margin-bottom:16px}
.faq-item{border:1px solid var(--border);border-radius:var(--rs);margin-bottom:10px;overflow:hidden}
.faq-q{padding:14px 18px;cursor:pointer;font-weight:600;font-size:14px;display:flex;justify-content:space-between;align-items:center;transition:background .2s}
.faq-q:hover{background:var(--surface-h)}
.faq-q svg{width:16px;height:16px;stroke:currentColor;fill:none;transition:transform .25s;flex-shrink:0;color:var(--muted)}
.faq-item.open .faq-q svg{transform:rotate(180deg)}
.faq-a{padding:0 18px;max-height:0;overflow:hidden;transition:max-height .3s ease,padding .3s;font-size:13.5px;color:var(--muted);line-height:1.7}
.faq-item.open .faq-a{max-height:300px;padding:0 18px 14px}

/* RELATED */
.related{max-width:960px;margin:0 auto;padding:0 24px 48px}
.related h2{font-size:20px;font-weight:700;margin-bottom:14px}
.related-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:10px}

/* FEATURES */
.features{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px;margin-bottom:48px}
.feat{padding:22px;border-radius:var(--r);border:1px solid var(--border);background:var(--surface)}
.feat-icon{width:40px;height:40px;border-radius:10px;background:var(--pri-g);display:flex;align-items:center;justify-content:center;margin-bottom:12px}
.feat-icon svg{width:20px;height:20px;stroke:var(--pri);fill:none;stroke-width:1.8}
.feat h3{font-size:15px;font-weight:600;margin-bottom:4px}
.feat p{font-size:12.5px;color:var(--muted)}

/* FOOTER */
.footer{text-align:center;padding:32px 24px;color:var(--dim);font-size:11.5px;border-top:1px solid var(--border);margin-top:48px}
.footer-links{display:flex;justify-content:center;gap:20px;margin-bottom:10px;flex-wrap:wrap}
.footer-links a{color:var(--muted);font-size:12px}

/* HIDDEN */
.hidden{display:none!important}

/* ANIMATIONS */
@keyframes fadeUp{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}

/* COMPRESS CARDS */
.compress-card{justify-content:center;gap:10px;flex-direction:row}
.compress-card-icon{color:var(--cyan);flex-shrink:0}
.compress-card-icon svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.8}
.compress-label{font-size:11px;color:var(--muted);font-weight:500;text-transform:uppercase;letter-spacing:.5px}
.compress-drop{border-color:rgba(34,211,238,.2)}
.compress-drop:hover,.compress-drop.drag-over{border-color:var(--cyan);background:rgba(34,211,238,.06);box-shadow:0 8px 32px rgba(34,211,238,.1)}

/* COMPRESSION SUMMARY BAR */
.compress-summary{display:flex;align-items:center;justify-content:center;gap:16px;padding:20px 24px;margin-bottom:28px;background:var(--surface);backdrop-filter:blur(16px);border:1px solid var(--border);border-radius:var(--r);animation:fadeUp .45s ease;flex-wrap:wrap}
.summary-item{display:flex;flex-direction:column;align-items:center;gap:4px;min-width:100px}
.summary-label{font-size:11px;color:var(--muted);font-weight:500;text-transform:uppercase;letter-spacing:.5px}
.summary-value{font-size:20px;font-weight:800;color:#fff}
.summary-saved{font-size:12px;font-weight:700;color:var(--hd)}
.sd-summary .summary-value{color:var(--sd)}
.hd-summary .summary-value{color:var(--hd)}
.summary-arrow{color:var(--muted);opacity:.4}
.summary-arrow svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:2}

/* SIZE HIGHLIGHTS */
.size-highlight{color:var(--cyan)!important;font-weight:700!important}
.size-new{color:var(--hd)!important;font-weight:700!important}
.content ol{color:var(--muted);font-size:14px;padding-left:20px;margin-bottom:14px;line-height:1.75}
.content ol li{margin-bottom:6px}

/* RESPONSIVE */
@media(max-width:768px){
  .hero h1{font-size:28px}
  .settings-grid,.res-grid{grid-template-columns:1fr}
  .conv-grid{grid-template-columns:repeat(auto-fill,minmax(170px,1fr))}
  .nav{padding:12px 16px}.nav-links{gap:14px}
  .hero{padding:36px 16px 20px}
  .features{grid-template-columns:1fr 1fr}
  .compress-summary{gap:10px;padding:16px}
  .summary-value{font-size:16px}
}
@media(max-width:480px){.features{grid-template-columns:1fr}.nav-links{display:none}.compress-summary{flex-direction:column}.summary-arrow{transform:rotate(90deg)}}