:root { --bg:#0f1220; --card:#1a1e31; --line:#2b3150; --tx:#e8eaf6; --mut:#9aa1c0; --acc:#ff7a59; --ok:#3ddc97; }
* { box-sizing:border-box; margin:0; padding:0; }
html { scroll-behavior:smooth; }
body { font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif; background:var(--bg); color:var(--tx); line-height:1.65; }
.wrap { max-width:760px; margin:0 auto; padding:24px 20px 80px; }
a { color:#a99bff; }
h1 { font-size:1.85rem; line-height:1.25; margin-bottom:8px; }
h2 { font-size:1.3rem; margin:34px 0 10px; }
h3 { font-size:1.08rem; margin:22px 0 6px; }
p, li { color:#c6cbe0; }
p { margin:10px 0; }
ul, ol { padding-left:22px; margin:10px 0; }
li { margin-bottom:6px; }
.sub { color:var(--mut); margin-bottom:28px; max-width:640px; }
.muted { color:var(--mut); }
.small { font-size:.88rem; }

/* header / nav */
.site-header { display:flex; align-items:center; justify-content:space-between; gap:16px; padding:6px 0 24px; flex-wrap:wrap; }
.logo { font-weight:800; font-size:1.15rem; letter-spacing:.5px; text-decoration:none; color:var(--tx); }
.logo span { color:var(--acc); }
nav.main { display:flex; gap:16px; flex-wrap:wrap; }
nav.main a { color:var(--mut); text-decoration:none; font-size:.92rem; }
nav.main a:hover, nav.main a.active { color:var(--tx); }

/* footer */
.site-footer { margin-top:48px; padding-top:20px; border-top:1px solid var(--line); color:var(--mut); font-size:.85rem; }
.footer-links { display:flex; flex-wrap:wrap; gap:14px; margin-bottom:10px; }
.site-footer a { color:var(--mut); text-decoration:none; }
.site-footer a:hover { color:var(--tx); }

/* generic cards / notes / tables */
.card { background:var(--card); border:1px solid var(--line); border-radius:14px; padding:22px; margin-bottom:18px; }
.note { background:#151a30; border:1px solid var(--line); border-radius:10px; padding:14px 16px; margin:16px 0; color:var(--mut); font-size:.93rem; }
table { width:100%; border-collapse:collapse; margin:14px 0; font-size:.92rem; }
th, td { text-align:left; padding:9px 10px; border-bottom:1px solid var(--line); vertical-align:top; }
th { color:var(--tx); }

/* cookie banner */
#cookieBanner { position:fixed; left:0; right:0; bottom:0; background:#151a30; border-top:1px solid var(--line); padding:14px 20px; display:none; z-index:9999; font-size:.9rem; }
#cookieBanner .inner { max-width:760px; margin:0 auto; display:flex; gap:14px; align-items:center; flex-wrap:wrap; }
#cookieBanner button { background:var(--acc); color:#fff; border:none; border-radius:8px; padding:9px 18px; font-weight:700; cursor:pointer; }
#cookieBanner button.secondary { background:#2b3150; }
#cookieBanner a { color:#a99bff; }

/* ---- AVIF to JPG tool ---- */
#dropzone { border:2px dashed #39406b; border-radius:14px; padding:44px 20px; text-align:center; cursor:pointer; transition:border-color .15s, background .15s; }
#dropzone.drag { border-color:var(--acc); background:#231c30; }
#dropzone .big { font-size:2rem; margin-bottom:6px; }
#dropzone .hint { color:var(--mut); font-size:.92rem; }
#list { margin-top:16px; }
.fileRow { display:flex; align-items:center; gap:12px; padding:12px 14px; background:#151a30; border-radius:10px; margin-bottom:10px; flex-wrap:wrap; }
.fileRow .fname { font-weight:600; word-break:break-all; }
.fileRow .fmeta { color:var(--mut); font-size:.85rem; }
.fileRow .st { margin-left:auto; font-size:.85rem; font-weight:700; }
.fileRow a.dl { padding:8px 16px; border-radius:8px; background:var(--ok); color:#05210f; text-decoration:none; font-weight:700; display:none; }
.fileRow.done .st { color:var(--ok); }
.fileRow.error .st { color:#ff6b81; }
.row { display:flex; gap:18px; flex-wrap:wrap; margin-top:14px; }
.field { flex:1; min-width:200px; }
.field label { display:block; font-size:.85rem; color:var(--mut); margin-bottom:6px; }
select { width:100%; padding:10px 12px; border-radius:8px; border:1px solid var(--line); background:#0f1220; color:var(--tx); font-size:.95rem; }
button.btn { width:100%; margin-top:18px; padding:14px; font-size:1.05rem; font-weight:700; color:#fff; background:var(--acc); border:none; border-radius:10px; cursor:pointer; }
button.btn:disabled { opacity:.45; cursor:not-allowed; }
#progress { display:none; margin-top:16px; font-size:.95rem; color:var(--mut); }
.err { color:#ff6b81; font-weight:600; display:none; margin-top:12px; }
.steps li { margin-bottom:8px; }
.faq-item { margin-bottom:14px; }
.faq-item b { display:block; margin-bottom:2px; }
.related { color:var(--mut); font-size:.85rem; margin-top:20px; }
.related a { color:#b9a1ff; }
@media (max-width:520px){ h1{font-size:1.5rem;} }