:root{
  --bg:#0b0d14;--bg2:#10131c;--card:rgba(255,255,255,.04);--line:rgba(255,255,255,.09);
  --text:#eef0f6;--muted:#9aa3b8;--pink:#ff3d71;--violet:#7c5cff;--cyan:#22d3ee;
  --tiktok:#25f4ee;--youtube:#ff0033;--instagram:#e1306c;--ok:#34d399;--err:#fb7185;
  --radius:18px;--font-head:"Space Grotesk",Inter,system-ui,sans-serif;--font:Inter,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.6 var(--font);-webkit-font-smoothing:antialiased}
a{color:inherit}
img{max-width:100%}
h1,h2,h3,h4{font-family:var(--font-head);letter-spacing:-.02em;line-height:1.15;margin:0 0 .5em}
h1{font-size:clamp(2rem,5.5vw,3.6rem);font-weight:700}
h2{font-size:clamp(1.5rem,3vw,2.1rem);font-weight:700;margin-bottom:1.2rem}
h3{font-size:1.05rem;font-weight:600}
p{margin:0 0 1em}
.container{width:min(1120px,100% - 2rem);margin-inline:auto}
.narrow{max-width:760px}
.center{text-align:center}
.muted{color:var(--muted)}
.small{font-size:.85rem}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.skip{position:absolute;left:-999px;top:0;background:var(--violet);color:#fff;padding:.5rem 1rem;z-index:100}
.skip:focus{left:1rem}

/* header */
.site-header{position:sticky;top:0;z-index:20;backdrop-filter:blur(14px);background:rgba(11,13,20,.6);border-bottom:1px solid var(--line)}
.site-header .container{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo{display:flex;align-items:center;gap:.6rem;text-decoration:none;font-family:var(--font-head);font-weight:700;font-size:1.25rem}
.nav{display:flex;gap:.25rem}
.nav a{text-decoration:none;color:var(--muted);padding:.45rem .8rem;border-radius:10px;font-weight:500;font-size:.95rem}
.nav a:hover{color:var(--text);background:var(--card)}
@media(max-width:560px){.nav a{padding:.4rem .5rem;font-size:.85rem}.nav a:last-child{display:none}}

/* hero */
.hero{position:relative;overflow:hidden;padding:clamp(3rem,8vw,6.5rem) 0 3rem;min-height:70vh;display:flex;align-items:center}
.hero-bg{position:absolute;inset:0;z-index:0;pointer-events:none}
#hero3d{position:absolute;inset:0;width:100%;height:100%;display:block;opacity:0;transition:opacity 1.2s ease}
#hero3d.ready{opacity:.9}
.blob{position:absolute;border-radius:50%;filter:blur(90px);opacity:.55;animation:float 14s ease-in-out infinite}
.b1{width:520px;height:520px;background:var(--pink);top:-180px;left:-120px}
.b2{width:460px;height:460px;background:var(--violet);bottom:-160px;right:-80px;animation-delay:-5s}
.b3{width:340px;height:340px;background:var(--cyan);top:30%;left:55%;opacity:.35;animation-delay:-9s}
@keyframes float{0%,100%{transform:translate(0,0) scale(1)}50%{transform:translate(30px,-40px) scale(1.08)}}
@media(prefers-reduced-motion:reduce){.blob{animation:none}}
.hero-inner{position:relative;z-index:1;text-align:center;max-width:820px}
.hero h1{background:linear-gradient(120deg,#fff 0%,#dfe3ff 55%,#ffb3c7 100%);-webkit-background-clip:text;background-clip:text;color:transparent;margin-bottom:.6rem}
.lead{font-size:clamp(1.05rem,2vw,1.25rem);color:var(--muted);margin:0 auto 1.8rem;max-width:620px}
.platform-pills{display:flex;gap:.4rem;justify-content:center;margin-bottom:1.2rem}
.pill{font-size:.72rem;font-weight:600;letter-spacing:.06em;text-transform:uppercase;padding:.3rem .7rem;border-radius:999px;border:1px solid var(--line);color:var(--muted);background:rgba(0,0,0,.25)}
.pill.tiktok{color:var(--tiktok)}.pill.youtube{color:var(--youtube)}.pill.instagram{color:var(--instagram)}
.hero[data-platform="tiktok"] .pill:not(.tiktok),.hero[data-platform="youtube"] .pill:not(.youtube),.hero[data-platform="instagram"] .pill:not(.instagram){display:none}

.glass{background:rgba(16,19,28,.72);border:1px solid var(--line);border-radius:var(--radius);backdrop-filter:blur(18px);box-shadow:0 20px 60px rgba(0,0,0,.35)}
.grab{padding:.6rem;text-align:left}
.grab-row{display:flex;gap:.5rem}
.grab input{flex:1;min-width:0;background:transparent;border:0;color:var(--text);font:inherit;font-size:1.05rem;padding:.8rem 1rem;outline:none}
.grab input::placeholder{color:#6b7389}
.btn{border:0;border-radius:12px;padding:.85rem 1.3rem;font:inherit;font-weight:600;cursor:pointer;color:#fff;white-space:nowrap;transition:transform .15s,opacity .15s;text-decoration:none;display:inline-block}
.btn:active{transform:scale(.97)}
.btn:disabled{opacity:.45;cursor:default;transform:none}
.btn.primary{background:linear-gradient(120deg,var(--pink),var(--violet));box-shadow:0 8px 24px rgba(124,92,255,.35)}
.btn.ghost{background:rgba(255,255,255,.07)}
.btn.ghost:hover{background:rgba(255,255,255,.12)}
@media(max-width:560px){.grab-row{flex-wrap:wrap}.grab input{width:100%;flex-basis:100%}.grab-row .btn{flex:1}}

.result{display:flex;gap:1rem;padding:1rem;margin-top:1rem;text-align:left}
.result[hidden]{display:none}
.thumb{width:150px;min-width:150px;height:200px;object-fit:cover;border-radius:12px;background:#000}
.result:not(.vertical) .thumb{width:210px;min-width:210px;height:120px}
.result-body{flex:1;min-width:0}
.rtitle{font-weight:600;margin:0 0 .3rem;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rmeta{color:var(--muted);font-size:.85rem;margin-bottom:.9rem;display:flex;gap:.5rem;flex-wrap:wrap;align-items:center}
.badge{font-size:.72rem;font-weight:600;letter-spacing:.05em;text-transform:uppercase;padding:.15rem .55rem;border-radius:999px;background:rgba(255,255,255,.08)}
.actions{display:flex;gap:.5rem;flex-wrap:wrap;align-items:center}
.actions .btn{padding:.65rem 1rem;font-size:.95rem}
select{background:rgba(255,255,255,.07);color:var(--text);border:1px solid var(--line);border-radius:10px;padding:.6rem .8rem;font:inherit;font-size:.95rem}
@media(max-width:560px){.result{flex-direction:column}.thumb,.result:not(.vertical) .thumb{width:100%;min-width:0;height:180px}}

.status{min-height:1.5rem;margin:.9rem 0 0;font-size:.95rem}
.status.err{color:var(--err)}.status.ok{color:var(--ok)}
.spinner{display:inline-block;width:14px;height:14px;border:2px solid rgba(255,255,255,.25);border-top-color:#fff;border-radius:50%;animation:spin .7s linear infinite;vertical-align:-2px;margin-right:.4rem}
@keyframes spin{to{transform:rotate(360deg)}}
.fine{font-size:.78rem;color:#6b7389;margin-top:1.2rem}
.fine a{color:var(--muted)}

/* sections */
.section{padding:3.2rem 0}
.prose{max-width:760px;margin-inline:auto;color:#c7cce0;font-size:1.05rem}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:1.4rem}
.grid{display:grid;gap:1rem}
.features{grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
.steps{list-style:none;padding:0;margin:0;display:grid;gap:1rem;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));counter-reset:s}
.steps .num{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:10px;background:linear-gradient(120deg,var(--pink),var(--violet));font-family:var(--font-head);font-weight:700;margin-bottom:.8rem}
.card p{margin:0;color:var(--muted)}
.faq{display:grid;gap:.6rem;max-width:860px}
details.card{padding:0}
details summary{list-style:none;cursor:pointer;padding:1.1rem 1.4rem;display:flex;justify-content:space-between;align-items:center;gap:1rem}
details summary::-webkit-details-marker{display:none}
details summary h3{margin:0;font-size:1rem}
details summary::after{content:"+";font-size:1.4rem;color:var(--muted);transition:transform .2s}
details[open] summary::after{transform:rotate(45deg)}
details p{padding:0 1.4rem 1.2rem}
.related{grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
.tool{text-decoration:none;font-weight:600;display:flex;align-items:center;gap:.7rem;transition:border-color .2s,transform .2s}
.tool:hover{border-color:rgba(255,255,255,.25);transform:translateY(-2px)}
.dot{width:10px;height:10px;border-radius:50%;background:var(--violet);box-shadow:0 0 12px currentColor;flex:none}
.tool.tiktok .dot{background:var(--tiktok);color:var(--tiktok)}
.tool.youtube .dot{background:var(--youtube);color:var(--youtube)}
.tool.instagram .dot{background:var(--instagram);color:var(--instagram)}

/* footer */
.site-footer{border-top:1px solid var(--line);padding:3rem 0 2rem;background:var(--bg2)}
.foot-grid{display:grid;gap:2rem;grid-template-columns:2fr 1.4fr 1fr;margin-bottom:2rem}
.foot-grid h4{margin:0 0 .7rem;font-size:.85rem;text-transform:uppercase;letter-spacing:.08em;color:var(--muted)}
.foot-grid a{display:block;color:var(--muted);text-decoration:none;font-size:.95rem;margin-bottom:.4rem}
.foot-grid a:hover{color:var(--text)}
.foot-brand{font-family:var(--font-head);font-weight:700;font-size:1.3rem;margin-bottom:.4rem}
@media(max-width:720px){.foot-grid{grid-template-columns:1fr}}