:root{--bg:#070b18;--panel:#0e1428;--panel2:#121a31;--text:#f7f9ff;--muted:#9ba8c4;--line:rgba(255,255,255,.09);--blue:#5c7cff;--cyan:#5be7ff;--violet:#985cff;--green:#56e6a5;--shadow:0 30px 80px rgba(0,0,0,.36)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;min-width:320px;color:var(--text);background:radial-gradient(800px 500px at 83% 5%,rgba(92,124,255,.14),transparent 58%),radial-gradient(700px 500px at -5% 50%,rgba(152,92,255,.08),transparent 60%),var(--bg);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;-webkit-font-smoothing:antialiased}button,select,input{font:inherit}a{color:inherit;text-decoration:none}.shell{width:min(1120px,calc(100% - 40px));margin:0 auto}.nav{min-height:78px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.brand{display:inline-flex;align-items:center;gap:11px;font-size:21px;font-weight:780;letter-spacing:-.03em}.mark{width:34px;height:34px;border-radius:11px;position:relative;overflow:hidden;background:linear-gradient(145deg,var(--cyan),var(--blue) 52%,var(--violet));box-shadow:0 8px 22px rgba(92,124,255,.34)}.mark:before,.mark:after{content:"";position:absolute;background:#fff;border-radius:2px;opacity:.94}.mark:before{width:14px;height:3px;left:10px;top:10px;box-shadow:0 6px 0 rgba(255,255,255,.94)}.mark:after{width:8px;height:3px;left:10px;top:22px}.nav-links{display:flex;align-items:center;gap:25px;color:#b8c2d8;font-size:14px;font-weight:600}.nav-links a:hover{color:#fff}.nav-cta{border:1px solid var(--line);background:rgba(255,255,255,.045);padding:10px 16px;border-radius:12px;color:#fff}
.intro{text-align:center;padding:66px 0 34px}.eyebrow{display:inline-flex;padding:7px 12px;border:1px solid rgba(91,231,255,.16);background:rgba(91,231,255,.055);color:#bff6ff;border-radius:999px;font-size:13px;font-weight:700}.intro h1{font-size:clamp(42px,6vw,66px);line-height:1.02;letter-spacing:-.055em;margin:20px 0 16px}.gradient{background:linear-gradient(105deg,#fff 10%,#a8bcff 48%,#b57aff 90%);-webkit-background-clip:text;background-clip:text;color:transparent}.intro p{max-width:680px;margin:0 auto;color:var(--muted);font-size:18px;line-height:1.7}
.workspace{max-width:820px;margin:0 auto 72px;padding:22px;border:1px solid rgba(255,255,255,.11);background:linear-gradient(155deg,rgba(18,26,49,.98),rgba(10,15,30,.98));border-radius:26px;box-shadow:var(--shadow)}.workspace-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:17px}.workspace-title{font-weight:750}.hint{font-size:12px;color:#aeb9d1}.tool-tabs{display:grid;grid-template-columns:repeat(4,1fr);gap:7px;padding:6px;background:rgba(4,7,16,.45);border:1px solid var(--line);border-radius:14px;margin-bottom:16px}.tab{border:0;padding:11px;border-radius:10px;background:transparent;color:#8795b2;font-weight:700;cursor:pointer}.tab.active{color:#fff;background:linear-gradient(135deg,rgba(92,124,255,.24),rgba(152,92,255,.18));box-shadow:inset 0 0 0 1px rgba(126,151,255,.22)}.dropzone{min-height:230px;display:grid;place-items:center;text-align:center;padding:28px;border:1px dashed rgba(146,164,204,.3);border-radius:20px;background:rgba(255,255,255,.018);cursor:pointer;transition:.2s}.dropzone:hover,.dropzone.dragging{border-color:var(--blue);background:rgba(92,124,255,.055)}.upload-icon{width:56px;height:56px;margin:0 auto 17px;display:grid;place-items:center;border-radius:17px;color:#c9d4ff;background:rgba(92,124,255,.12);border:1px solid rgba(92,124,255,.2)}.dropzone strong{display:block;font-size:17px}.dropzone p{margin:8px 0 0;color:var(--muted);font-size:13px}.browse{color:#8fa5ff}#fileInput{display:none}.action-row{display:grid;grid-template-columns:1fr auto;gap:12px;margin-top:15px}select,.option-input{width:100%;padding:13px 14px;border:1px solid var(--line);border-radius:12px;background:#0a1022;color:#dfe5f4;outline:0}.primary,.download{border:0;border-radius:12px;padding:13px 24px;color:#fff;font-weight:760;background:linear-gradient(135deg,var(--blue),var(--violet));cursor:pointer;box-shadow:0 10px 24px rgba(92,124,255,.22)}.primary:disabled{opacity:.55;cursor:wait}.options-panel{display:none;margin-top:15px;padding:15px;border:1px solid var(--line);border-radius:15px;background:rgba(255,255,255,.025)}.options-panel.show{display:block}.field-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.field{display:block;color:#aeb9d1;font-size:12px;font-weight:700}.field select,.field input{margin-top:7px}.range-row{display:flex;align-items:center;gap:12px;margin-top:14px}.range-row input{flex:1}.quality-value{min-width:42px;color:#fff}.check-row{display:flex;align-items:center;gap:8px;margin-top:13px;color:#b7c2d9;font-size:13px}.status{display:none;margin:14px 2px 0;color:#b8c8ff;font-size:13px}.status.show{display:block}.status.error{color:#ff9aa8}.result{display:none;align-items:center;justify-content:space-between;gap:16px;margin-top:15px;padding:15px;border:1px solid rgba(86,230,165,.2);border-radius:15px;background:rgba(86,230,165,.055)}.result.show{display:flex}.result strong,.result span{display:block}.result span{margin-top:4px;color:var(--muted);font-size:12px}.download{font-size:13px}
.content{max-width:880px;margin:0 auto;padding:6px 0 85px}.content h2{font-size:32px;letter-spacing:-.035em;margin:42px 0 14px}.content h3{font-size:18px;margin:0 0 8px}.content p,.content li{color:var(--muted);font-size:16px;line-height:1.75}.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:26px 0}.step,.faq-item{padding:21px;border:1px solid var(--line);border-radius:17px;background:rgba(18,26,49,.55)}.step b{display:grid;place-items:center;width:31px;height:31px;margin-bottom:15px;border-radius:9px;background:rgba(92,124,255,.16);color:#b9c6ff}.step p,.faq-item p{margin:0;font-size:14px}.faq{display:grid;gap:12px}footer{border-top:1px solid var(--line);color:#8f9bb5;font-size:13px}.footer-inner{min-height:92px;display:flex;align-items:center;justify-content:space-between;gap:25px}.footer-links{display:flex;gap:20px}
@media(max-width:700px){.shell{width:min(100% - 26px,1120px)}.nav-links a:not(.nav-cta){display:none}.intro{padding:48px 0 28px}.intro h1{font-size:43px}.intro p{font-size:16px}.workspace{padding:14px;margin-bottom:55px}.workspace-head{align-items:flex-start}.action-row,.field-grid,.steps{grid-template-columns:1fr}.primary{width:100%}.result.show{align-items:flex-start;flex-direction:column}.footer-inner{padding:24px 0;align-items:flex-start;flex-direction:column}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}