/* UpPrep — original premium dark UI. Structure inspired by contemporary upload-method landing patterns; no third-party assets/copy. */
:root{
  --bg:#07090d; --bg2:#0b1018; --surface:rgba(255,255,255,.03); --raised:rgba(255,255,255,.055);
  --line:rgba(255,255,255,.08); --line2:rgba(255,255,255,.14);
  --txt:#f2f4f8; --mut:#8b93a7; --mut2:#6b7388;
  --a1:#4ea1ff; --a2:#7c5cff; --a3:#00d4aa; --ok:#4ade80; --warn:#f5a524; --bad:#ff5c6c;
  --grad:linear-gradient(120deg,#4ea1ff,#7c5cff 55%,#a78bfa);
  --grad2:linear-gradient(135deg,#ffffff,#d7e6ff);
  --r:18px; --ease:cubic-bezier(.22,1,.36,1);
  font-synthesis:none;
}
*{box-sizing:border-box} html.lenis,html.lenis body{height:auto}
html{scroll-behavior:auto} /* Lenis owns scrolling */
body{margin:0;background:var(--bg);color:var(--txt);font:15.5px/1.6 Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;-webkit-font-smoothing:antialiased;overflow-x:hidden}
body::before{content:"";position:fixed;inset:0;z-index:-2;background:
  radial-gradient(50% 40% at 12% 0%,rgba(78,161,255,.16),transparent 70%),
  radial-gradient(40% 35% at 88% 8%,rgba(124,92,255,.12),transparent 70%),
  radial-gradient(45% 40% at 50% 100%,rgba(0,212,170,.06),transparent 70%);pointer-events:none}
a{color:inherit;text-decoration:none}.wrap{max-width:1080px;margin:0 auto;padding:0 24px}
@media(min-width:640px){.wrap{padding:0 40px}}
h1,h2,h3{line-height:1.1;letter-spacing:-.03em;margin:0 0 .4em;font-weight:700}
h1{font-size:clamp(2.4rem,6vw,3.6rem)} h2{font-size:clamp(1.85rem,4vw,2.75rem)} h3{font-size:1.15rem}
.grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.mut{color:var(--mut)}.muted{color:var(--mut2)}
.display{font-size:clamp(2.1rem,4.5vw,2.9rem);font-weight:700;letter-spacing:-.035em;line-height:1.12}

/* Nav — sticky glass */
header.nav{position:sticky;top:0;z-index:60;backdrop-filter:blur(16px) saturate(160%);background:rgba(7,9,13,.72);border-bottom:1px solid var(--line)}
.nav .wrap{display:flex;align-items:center;gap:18px;height:68px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.05rem;letter-spacing:-.02em}
.logo i{width:28px;height:28px;border-radius:9px;background:var(--grad);display:grid;place-items:center;font-style:normal;color:#06121f;font-size:.8rem;box-shadow:0 6px 22px rgba(78,161,255,.4)}
.links{display:flex;gap:2px;margin-left:8px}.links a{padding:8px 12px;border-radius:999px;color:var(--mut);font-size:.9rem;font-weight:500;transition:color .2s,background .2s}
.links a:hover,.links a.on{color:var(--txt);background:rgba(255,255,255,.05)}
.nav .sp{flex:1}
.lang{display:flex;border:1px solid var(--line);border-radius:999px;overflow:hidden}.lang button{background:none;border:0;color:var(--mut);padding:5px 10px;cursor:pointer;font:600 .75rem inherit}.lang button.on{background:var(--raised);color:var(--txt)}
.burger{display:none;background:none;border:0;color:var(--txt);font-size:1.35rem;cursor:pointer}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 20px;border-radius:999px;font:650 .95rem inherit;border:1px solid var(--line);background:var(--surface);color:var(--txt);cursor:pointer;transition:transform .2s var(--ease),background .2s,box-shadow .25s}
.btn:hover{transform:translateY(-1px);background:rgba(255,255,255,.07)}.btn:active{transform:scale(.96)}
.btn.pri{background:var(--grad2);color:#06121f;border:0;box-shadow:0 10px 36px -10px rgba(78,161,255,.65)}.btn.pri:hover{box-shadow:0 14px 40px -8px rgba(124,92,255,.55)}
.btn:disabled{opacity:.45;cursor:not-allowed;transform:none}.btn.sm{padding:7px 14px;font-size:.82rem}.btn.ghost{background:transparent}
.btn .arrow{transition:transform .2s}.btn:hover .arrow{transform:translateX(3px)}

/* Hero */
.hero{padding:72px 0 40px;text-align:center;position:relative}
.hero .orb{position:absolute;border-radius:50%;filter:blur(60px);opacity:.55;pointer-events:none;will-change:transform}
.hero .orb.a{width:280px;height:280px;background:rgba(78,161,255,.35);top:-40px;left:8%}
.hero .orb.b{width:220px;height:220px;background:rgba(124,92,255,.3);top:60px;right:10%}
.pill{display:inline-flex;gap:8px;align-items:center;border:1px solid var(--line);background:var(--surface);padding:6px 14px;border-radius:999px;font-size:.8rem;color:var(--mut);margin-bottom:22px}
.pill b{width:7px;height:7px;border-radius:50%;background:var(--ok);box-shadow:0 0 12px var(--ok)}
.hero p.lead{font-size:1.12rem;color:var(--mut);max-width:560px;margin:0 auto 28px;line-height:1.55}
.cta{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}

/* Sections */
section{padding:88px 0;scroll-margin-top:88px}
section.tight{padding:64px 0}
.sh{text-align:center;max-width:640px;margin:0 auto 48px}.sh .label{display:block;font-size:.72rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--a1);margin-bottom:12px}
.sh p{color:var(--mut);margin:0}

/* How — 3 steps */
.steps{display:grid;grid-template-columns:1fr;gap:14px;counter-reset:st}
@media(min-width:800px){.steps{grid-template-columns:repeat(3,1fr);gap:18px}}
.step{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:26px 22px;transition:border-color .3s,transform .3s var(--ease);overflow:hidden}
.step:hover{border-color:rgba(78,161,255,.35);transform:translateY(-3px)}
.step::before{counter-increment:st;content:counter(st);display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:10px;background:var(--grad);color:#06121f;font-weight:800;font-size:.9rem;margin-bottom:14px}
.step p{color:var(--mut);margin:0;font-size:.95rem}
.how-note{max-width:720px;margin:28px auto 0;text-align:center;color:var(--mut);font-size:.98rem}

/* Quality compare */
.cmp{position:relative;border-radius:22px;overflow:hidden;border:1px solid var(--line);background:#05070c;aspect-ratio:9/16;max-width:380px;margin:0 auto;touch-action:none;user-select:none}
.cmp video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block}
.cmp-after{position:absolute;inset:0;clip-path:inset(0 50% 0 0);will-change:clip-path}
.cmp-handle{position:absolute;top:0;bottom:0;left:50%;width:2px;background:#fff;transform:translateX(-50%);z-index:3;pointer-events:none;will-change:left}
.cmp-handle::after{content:"";position:absolute;top:50%;left:50%;width:40px;height:40px;margin:-20px 0 0 -20px;border-radius:50%;background:#fff;box-shadow:0 4px 20px rgba(0,0,0,.4);background-image:linear-gradient(90deg,#06121f 40%,transparent 40%,transparent 60%,#06121f 60%);background-size:12px 2px;background-repeat:no-repeat;background-position:center}
.cmp input[type=range]{position:absolute;inset:0;z-index:4;opacity:0;cursor:ew-resize;margin:0;width:100%;height:100%}
.cmp-badge{position:absolute;top:14px;z-index:2;padding:5px 10px;border-radius:999px;font-size:.7rem;font-weight:700;background:rgba(0,0,0,.55);backdrop-filter:blur(8px);border:1px solid rgba(255,255,255,.12)}
.cmp-badge.l{left:12px}.cmp-badge.r{right:12px}
.quality-grid{display:grid;gap:28px;align-items:center}
@media(min-width:900px){.quality-grid{grid-template-columns:1fr 1.1fr}}
.q-stats{display:flex;gap:18px;flex-wrap:wrap;margin-top:22px}
.q-stats div{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:14px 18px;min-width:120px}
.q-stats b{display:block;font-size:1.6rem;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.q-stats span{font-size:.75rem;color:var(--mut)}

/* Feature cards */
.grid{display:grid;gap:16px}.g2{grid-template-columns:1fr}.g3{grid-template-columns:1fr}.g4{grid-template-columns:1fr}
@media(min-width:700px){.g2{grid-template-columns:repeat(2,1fr)}.g3{grid-template-columns:repeat(3,1fr)}.g4{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1000px){.g4{grid-template-columns:repeat(4,1fr)}}
.card{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:24px;transition:border-color .3s,transform .3s var(--ease),background .3s}
.card.hov:hover{transform:translateY(-4px);border-color:rgba(78,161,255,.4);background:var(--raised)}
.card .ic{width:40px;height:40px;border-radius:12px;display:grid;place-items:center;background:rgba(78,161,255,.12);color:#9ec9ff;font-size:1.15rem;margin-bottom:14px}
.card p{color:var(--mut);margin:0;font-size:.95rem}

/* Stats strip */
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:8px}
.stats div{text-align:center;padding:28px 12px;border-radius:18px;border:1px solid var(--line);background:linear-gradient(180deg,rgba(255,255,255,.04),rgba(255,255,255,.01))}
.stats b{display:block;font-size:clamp(1.6rem,3.5vw,2.2rem);font-weight:800;letter-spacing:-.03em}
.stats span{color:var(--mut);font-size:.8rem}

/* Reviews carousel */
.rev{max-width:640px;margin:0 auto;text-align:center}
.rev-card{min-height:160px;padding:28px;border-radius:20px;border:1px solid var(--line);background:var(--surface)}
.rev-card .stars{color:#f5a524;letter-spacing:2px;margin-bottom:12px;font-size:1.1rem}
.rev-card p{font-size:1.05rem;margin:0 0 12px;line-height:1.5}
.rev-nav{display:flex;align-items:center;justify-content:center;gap:14px;margin-top:18px}
.rev-nav button{width:36px;height:36px;border-radius:50%;border:1px solid var(--line);background:var(--surface);color:var(--txt);cursor:pointer;transition:.2s}
.rev-nav button:hover{background:var(--raised)}
.rev-dots{display:flex;gap:6px}.rev-dots button{width:7px;height:7px;padding:0;border-radius:50%;border:0;background:rgba(255,255,255,.2);cursor:pointer}
.rev-dots button.on{background:var(--a1);transform:scale(1.2)}
.avg{display:inline-flex;align-items:center;gap:8px;margin-bottom:20px;padding:6px 14px;border-radius:999px;border:1px solid var(--line);background:var(--surface);font-size:.9rem}
.avg .stars{color:#f5a524}

/* FAQ accordion */
details.faq{border:1px solid var(--line);border-radius:16px;background:var(--surface);margin-bottom:8px;padding:0 20px;transition:border-color .3s}
details.faq[open]{border-color:rgba(78,161,255,.35)}
details.faq summary{cursor:pointer;list-style:none;padding:18px 0;font-weight:650;display:flex;justify-content:space-between;align-items:center;gap:12px}
details.faq summary::after{content:"+";color:var(--a1);font-size:1.35rem;transition:transform .35s var(--ease);flex:none}
details.faq[open] summary::after{transform:rotate(45deg)}
details.faq p{color:var(--mut);margin:0 0 18px;font-size:.95rem}

/* Forms / misc (app pages) */
input,select,textarea{width:100%;background:rgba(255,255,255,.04);border:1px solid var(--line);border-radius:12px;padding:11px 13px;color:var(--txt);font:inherit;transition:border-color .2s,box-shadow .2s}
input:focus,select:focus,textarea:focus{outline:0;border-color:var(--a1);box-shadow:0 0 0 4px rgba(78,161,255,.15)}
label{display:block;font-size:.8rem;color:var(--mut);margin:0 0 6px;font-weight:600}.fld{margin-bottom:14px}
.auth{max-width:440px;margin:80px auto;padding:36px}
.keyin{font-family:ui-monospace,Consolas,monospace;letter-spacing:.06em;text-transform:uppercase;font-size:1.02rem;text-align:center}
.msg{padding:12px 14px;border-radius:12px;margin-top:14px;font-size:.9rem;display:none}.msg.show{display:block}.msg.e{background:rgba(255,92,108,.1);color:#ff98a2;border:1px solid rgba(255,92,108,.3)}.msg.s{background:rgba(74,222,128,.08);color:#8af0b0;border:1px solid rgba(74,222,128,.3)}
.drop{border:2px dashed rgba(255,255,255,.14);border-radius:22px;padding:56px 20px;text-align:center;cursor:pointer;transition:.25s;background:radial-gradient(60% 80% at 50% 0%,rgba(78,161,255,.08),transparent)}
.drop:hover,.drop.over{border-color:var(--a3);transform:scale(1.005)}
.kv{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:10px}.kv div{background:rgba(255,255,255,.03);border:1px solid var(--line);border-radius:12px;padding:11px 13px}.kv small{display:block;color:var(--mut);font-size:.7rem;text-transform:uppercase;letter-spacing:.04em}
.chk{list-style:none;padding:0;margin:0}.chk li{display:flex;gap:12px;padding:11px 0;border-bottom:1px solid var(--line)}.chk .d{flex:none;width:22px;height:22px;border-radius:7px;display:grid;place-items:center;font-size:.75rem;font-weight:800;color:#000}
.d.ok{background:var(--ok)}.d.warn{background:var(--warn)}.d.bad{background:var(--bad)}
.tabs{display:flex;gap:6px;background:rgba(255,255,255,.04);padding:5px;border-radius:13px;border:1px solid var(--line);margin-bottom:18px;flex-wrap:wrap}.tabs button{flex:1;min-width:90px;background:none;border:0;color:var(--mut);padding:10px;border-radius:9px;font:650 .88rem inherit;cursor:pointer}.tabs button.on{background:var(--grad);color:#06121f}
.prog{height:12px;border-radius:9px;background:rgba(255,255,255,.06);overflow:hidden;position:relative}.prog i{position:absolute;inset:0 auto 0 0;background:var(--grad);width:0;transition:width .3s}
.badge{display:inline-block;padding:2px 9px;border-radius:99px;font-size:.74rem;font-weight:700;background:rgba(255,255,255,.07)}.badge.ok{background:rgba(74,222,128,.14);color:var(--ok)}.badge.bad{background:rgba(255,92,108,.14);color:var(--bad)}.badge.warn{background:rgba(245,165,36,.14);color:var(--warn)}
.hidden{display:none!important}.row{display:flex;gap:12px;align-items:center;flex-wrap:wrap}
.tool-grid{display:grid;grid-template-columns:1fr;gap:18px}@media(min-width:960px){.tool-grid{grid-template-columns:1.25fr 1fr}}
.tbl{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r);background:var(--card,var(--surface))}
table{width:100%;border-collapse:collapse;font-size:.92rem}th,td{text-align:left;padding:11px 12px;border-bottom:1px solid var(--line)}th{color:var(--mut);font-weight:600;font-size:.78rem;text-transform:uppercase;letter-spacing:.04em}
.meter{height:8px;border-radius:9px;background:rgba(255,255,255,.07);overflow:hidden}.meter>i{display:block;height:100%;background:var(--grad);border-radius:9px}
.price{position:relative;display:flex;flex-direction:column}.price .amt{font-size:2.4rem;font-weight:800;margin:10px 0}.price .amt small{font-size:.95rem;color:var(--mut);font-weight:500}
.price ul{list-style:none;padding:0;margin:18px 0 24px;flex:1}.price li{padding:6px 0;color:var(--mut)}.price li::before{content:"✓";color:var(--a3);margin-right:10px;font-weight:700}
.price.feat{border-color:rgba(78,161,255,.5);background:linear-gradient(180deg,rgba(78,161,255,.1),rgba(255,255,255,.02))}
.tag{position:absolute;top:-12px;right:20px;background:var(--grad);color:#06121f;font-size:.7rem;font-weight:800;padding:4px 10px;border-radius:99px}
.toast{position:fixed;bottom:22px;right:22px;background:#121722;border:1px solid var(--line);padding:12px 18px;border-radius:12px;z-index:99}
.prose{max-width:780px;margin:0 auto}.prose p,.prose li{color:var(--mut)}code{background:rgba(255,255,255,.07);padding:2px 6px;border-radius:6px;font-size:.88em}
.log{font:12px/1.5 ui-monospace,Consolas,monospace;background:#05050a;border:1px solid var(--line);border-radius:12px;padding:12px;height:150px;overflow:auto;color:#8e8ca3;white-space:pre-wrap}

footer{border-top:1px solid var(--line);padding:48px 0 36px;margin-top:40px;color:var(--mut);font-size:.88rem}
footer .wrap{display:flex;gap:24px;flex-wrap:wrap;justify-content:space-between;align-items:flex-start}
footer nav{display:flex;gap:18px;flex-wrap:wrap}

/* Reveal */
.reveal{opacity:0;transform:translate3d(0,22px,0);transition:opacity .8s var(--ease),transform .8s var(--ease);transition-delay:var(--d,0ms);will-change:opacity,transform}
.reveal.in{opacity:1;transform:none}
.reduced-motion .reveal{opacity:1;transform:none;transition:none}

@media(max-width:900px){
  .links{display:none;position:absolute;top:68px;left:0;right:0;flex-direction:column;background:#0b1018;padding:12px;border-bottom:1px solid var(--line)}
  .links.open{display:flex}.burger{display:block}.nav .hide-m{display:none}
  .stats{grid-template-columns:1fr}
}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}.reveal{opacity:1;transform:none}}