/* PNG Converter - red and white theme */
:root{--r:#d62828;--rd:#a81d1d;--soft:#fdf2f2;--line:#efdada;--t:#1f2328;--mu:#667085;box-sizing:border-box;color-scheme:light}
*,*::before,*::after{box-sizing:inherit}
body{margin:0;font:16px/1.65 system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:var(--t);background:#fff}
.top{display:flex;align-items:center;justify-content:space-between;max-width:1040px;margin:0 auto;padding:14px 20px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:1.1rem;color:var(--t);text-decoration:none}
.brand svg{width:30px;height:30px}
.tag{font-size:.8rem;font-weight:600;color:var(--rd);background:var(--soft);border:1px solid var(--line);border-radius:99px;padding:3px 12px}
.hero{background:linear-gradient(180deg,var(--soft),#fff);border-top:1px solid var(--line);text-align:center;padding:36px 20px 10px}
.hero h1{margin:0 0 8px;font-size:clamp(1.7rem,4vw,2.5rem);line-height:1.2;letter-spacing:-.02em}
.hero h1+p{margin:0 auto;max-width:620px;color:var(--mu);font-size:1.05rem}
.trust{list-style:none;display:flex;flex-wrap:wrap;gap:6px 18px;justify-content:center;padding:0;margin:18px 0 0;font-size:.85rem;font-weight:600;color:var(--rd)}
.trust li::before{content:"✓ "}
main{max-width:860px;margin:0 auto;padding:18px 16px 40px}
#tabs{display:flex;flex-wrap:wrap;gap:4px;justify-content:center;width:fit-content;max-width:100%;margin:0 auto 18px;padding:4px;background:var(--soft);border:1px solid var(--line);border-radius:12px}
.pill{display:inline-block;font:inherit;font-size:.88rem;font-weight:600;padding:7px 16px;border:1.5px solid var(--r);border-radius:8px;background:#fff;color:var(--r);cursor:pointer;text-decoration:none;transition:background .15s,box-shadow .15s}
.pill:hover{background:var(--soft)}
.pill.solid{background:var(--r);color:#fff}
.pill.solid:hover{background:var(--rd)}
.pill:disabled{opacity:.6;cursor:wait}
#tabs .pill{border:0;background:transparent;color:var(--t);padding:8px 16px}
#tabs .pill:hover{background:#fff}
#tabs .pill.on{background:var(--r);color:#fff;box-shadow:0 2px 8px rgba(214,40,40,.35)}
#tool{background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px;box-shadow:0 10px 34px rgba(214,40,40,.08)}
.bar{display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap}
h2{color:var(--t);margin:0;font-size:1.3rem}
#tt{color:var(--r)}
.steps{display:flex;flex-wrap:wrap;gap:6px 18px;list-style:none;margin:10px 0 0;padding:0;font-size:.8rem;color:var(--mu);counter-reset:s}
.steps li{counter-increment:s}
.steps li::before{content:counter(s);display:inline-grid;place-items:center;width:20px;height:20px;margin-right:6px;border-radius:50%;background:var(--soft);border:1px solid var(--line);color:var(--rd);font-weight:700;font-size:.72rem}
.drop{display:flex;flex-direction:column;align-items:center;gap:4px;margin:16px 0;padding:34px 12px;border:2px dashed #e6b1b1;border-radius:14px;background:var(--soft);cursor:pointer;text-align:center;transition:background .15s,border-color .15s}
.drop:hover,.drop.over{background:#fbe3e3;border-color:var(--r)}
.drop svg{width:40px;height:40px;color:var(--r)}
.drop strong{font-size:1.05rem}
.drop span{font-size:.85rem;color:var(--mu)}
#opts{display:flex;flex-wrap:wrap;gap:10px 24px;padding:12px 14px;background:#fafafa;border:1px solid #eee;border-radius:10px;font-size:.9rem}
#opts label{display:flex;align-items:center;gap:8px}
#opts [hidden]{display:none}
#opts small{flex-basis:100%;color:var(--mu)}
input,select{accent-color:var(--r)}
select{font:inherit;padding:4px 8px;border:1px solid #ddd;border-radius:6px;background:#fff}
#list{list-style:none;margin:12px 0;padding:0}
#list li{display:flex;align-items:center;gap:10px;padding:8px 12px;margin-bottom:6px;background:#fff;border:1px solid #eee;border-radius:8px;font-size:.9rem}
#list small{margin-left:auto;color:var(--mu)}
#list button{border:0;background:none;color:var(--r);font-size:1.2rem;line-height:1;cursor:pointer}
.row{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-top:14px}
#go{padding:10px 30px;font-size:1rem}
#msg{font-size:.85rem;color:var(--rd)}
#info{margin-top:36px}
#info h2{font-size:1.5rem;color:var(--t);padding-bottom:8px;border-bottom:3px solid var(--r);display:inline-block}
#info p{color:#3b424a}
#info ul{padding-left:20px}
h3{color:var(--rd);margin:20px 0 6px;font-size:1.05rem}
details{border:1px solid var(--line);border-radius:10px;padding:10px 14px;margin:8px 0;background:#fff}
details[open]{background:var(--soft)}
summary{cursor:pointer;font-weight:600}
a{color:var(--r)}
footer{border-top:1px solid var(--line);background:var(--soft);padding:26px 20px;text-align:center;color:var(--mu);font-size:.88rem}
footer nav{display:flex;flex-wrap:wrap;gap:6px 20px;justify-content:center;margin-bottom:10px}
footer a{color:var(--rd);text-decoration:none;font-weight:600}
footer a:hover{text-decoration:underline}
footer p{margin:0}
@media(max-width:560px){#tool{padding:14px}.bar{flex-direction:column;align-items:flex-start}#tabs .pill{padding:7px 12px}}
.features{margin:44px 0 0}
.features h2{text-align:center;margin-bottom:18px}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px}
.card{padding:20px;background:#fff;border:1px solid var(--line);border-radius:14px;transition:transform .15s,box-shadow .15s}
.card:hover{transform:translateY(-2px);box-shadow:0 10px 26px rgba(214,40,40,.12)}
.card svg{width:44px;height:44px;padding:10px;border-radius:12px;background:var(--soft);color:var(--r);margin-bottom:10px}
.card h3{margin:0 0 4px;color:var(--t);font-size:1.05rem}
.card p{margin:0;color:var(--mu);font-size:.92rem}