:root{
  --bg:#fff;--card:#fff;--ink:#111;--muted:#666;--line:#e5e1f2;
  --accent:#7C5CFC;--accent-strong:#6042DB;--accent-soft:#F2EEFF;
  --shadow:0 14px 34px rgba(35,24,74,.065);--radius:24px
}
*{box-sizing:border-box}
html{color-scheme:light}
body{margin:0;background:var(--bg);color:var(--ink);font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.5}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit}
button{cursor:pointer}
.shell{width:min(1080px,calc(100% - 32px));margin:0 auto}
.topbar{display:flex;align-items:center;justify-content:space-between;padding:22px 0 14px}
.brand{font-size:19px;font-weight:850;letter-spacing:-.035em}
.brand span{color:var(--accent)}
.toplink{color:var(--muted);font-size:14px;font-weight:650}
.tool-tabs{display:flex;flex-wrap:wrap;gap:10px;overflow-x:auto;scrollbar-width:none;padding:8px 0 20px;border-bottom:1px solid var(--line);-webkit-overflow-scrolling:touch;view-transition-name:tool-tabs}
.tool-tabs::-webkit-scrollbar{display:none}
.tool-tab{flex:0 0 auto;padding:12px 18px;border:1px solid #ded5ff;border-radius:999px;background:#fff;color:#242424;font-size:15px;font-weight:800;white-space:nowrap;box-shadow:0 4px 12px rgba(0,0,0,.04);transition:.18s ease}
.tool-tab:hover{transform:translateY(-2px);border-color:#bbaaff;box-shadow:0 7px 18px rgba(0,0,0,.055)}
.tool-tab.active{background:linear-gradient(135deg,#9279FF,var(--accent));border-color:var(--accent);color:#fff;box-shadow:0 8px 20px rgba(124,92,252,.24);view-transition-name:active-tab}
.hero{padding:58px 0 42px;max-width:790px}
.eyebrow{display:inline-flex;align-items:center;padding:7px 11px;border-radius:999px;background:var(--accent-soft);color:var(--accent-strong);font-size:13px;font-weight:750}
h1{margin:18px 0 14px;font-size:clamp(42px,8vw,78px);line-height:.97;letter-spacing:-.065em}
.hero p{margin:0;max-width:680px;color:var(--muted);font-size:18px}
.grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;padding-bottom:72px}
.tool-card{background:var(--card);border:1px solid #e0e0e0;border-radius:var(--radius);padding:24px;min-height:180px;box-shadow:var(--shadow);transition:transform .18s ease,border-color .18s ease}
.tool-card:hover{transform:translateY(-3px);border-color:#c4c4c4}
.icon{width:60px;height:60px;display:grid;place-items:center;border-radius:18px;background:#EDE7FF;font-size:28px;margin-bottom:28px;box-shadow:0 5px 14px rgba(0,0,0,.035)}
.tool-card:nth-child(2) .icon{background:#DFF1FF}
.tool-card:nth-child(3) .icon{background:#FFE7EF}
.tool-card:nth-child(4) .icon{background:#FFF0CC}
.tool-card:nth-child(5) .icon{background:#E8E0FF}
.tool-card:nth-child(6) .icon{background:#FFF2C9}
.tool-card:nth-child(7) .icon{background:#DFF3E8}
.tool-card:nth-child(8) .icon{background:#E8EEF5}
.tool-card h2{margin:0 0 6px;font-size:22px;letter-spacing:-.035em}
.tool-card p{margin:0;color:var(--muted);font-size:14px}
.footer{padding:26px 0 42px;color:var(--muted);font-size:13px;border-top:1px solid var(--line)}

.tool-layout{padding:38px 0 72px}
.tool-head{max-width:790px;margin-bottom:30px}
.breadcrumb{color:var(--muted);font-size:13px;font-weight:650}
.tool-head h1{font-size:clamp(38px,6vw,62px);margin-top:15px}
.tool-head p{color:var(--muted);font-size:17px;max-width:700px}
.panel{background:var(--card);border:1px solid #efecf7;border-radius:28px;padding:clamp(20px,4vw,36px);box-shadow:var(--shadow)}
.dropzone{display:grid;place-items:center;text-align:center;min-height:240px;padding:34px 20px;border:2px dashed #cfc4f7;border-radius:22px;background:#fbfaff;transition:.18s ease}
.dropzone.dragover{border-color:var(--accent);background:var(--accent-soft)}
.drop-icon{font-size:42px;line-height:1;margin-bottom:13px}
.dropzone h2{margin:0 0 7px;font-size:22px;letter-spacing:-.03em}
.dropzone p{margin:0 0 17px;color:var(--muted);font-size:14px}
.file-input{display:none}
.btn{border:0;border-radius:14px;padding:12px 17px;font-weight:850;background:linear-gradient(135deg,#9279FF,var(--accent));color:#fff;box-shadow:0 8px 20px rgba(124,92,252,.22)}
.btn.secondary{background:#f1eff7;color:#222;box-shadow:none}
.btn.ghost{background:#fff;color:#333;border:1px solid #e2deef;box-shadow:none}
.btn:disabled{opacity:.45;cursor:not-allowed}
.controls{display:grid;gap:16px;margin-top:22px}
.row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.row.three{grid-template-columns:repeat(3,1fr)}
.control label{display:block;margin-bottom:7px;font-size:13px;font-weight:800}
input,select{width:100%;min-width:0;max-width:100%;border:1px solid #e5e1ef;background:#fff;color:var(--ink);border-radius:14px;padding:13px 14px;outline:none}
input:focus,select:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
input[type="range"]{padding:0;border:0;box-shadow:none;accent-color:var(--accent)}
.checkline{display:flex;gap:9px;align-items:center;font-size:14px;font-weight:700}
.checkline input{width:auto}
.actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}
.file-summary{display:none;margin-top:18px;padding:14px 16px;border-radius:16px;background:#faf9fd;border:1px solid #ece8f5;font-size:14px}
.file-summary.show{display:block}
.results{display:grid;gap:12px;margin-top:20px}
.result-card{display:grid;grid-template-columns:56px minmax(0,1fr) auto;gap:14px;align-items:center;padding:13px;border:1px solid #ece8f4;border-radius:17px;background:#fff}
.thumb{width:56px;height:56px;border-radius:12px;object-fit:cover;background:#f4f3f7;border:1px solid #eee}
.result-name{font-weight:800;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.result-meta{margin-top:3px;color:var(--muted);font-size:12px}
.download{display:inline-flex;align-items:center;justify-content:center;padding:9px 12px;border-radius:12px;background:#111;color:#fff;font-size:13px;font-weight:800}
.preview-wrap{display:none;margin-top:20px;padding:16px;border-radius:18px;border:1px solid #ece8f4;background:#faf9fd}
.preview-wrap.show{display:block}
.preview-canvas{display:block;max-width:100%;max-height:520px;margin:0 auto;border-radius:14px;background:repeating-conic-gradient(#f2f2f2 0% 25%,#fff 0% 50%) 50%/18px 18px}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-top:18px}
.stat{padding:14px;border-radius:16px;background:#faf9fd;border:1px solid #ece8f4}
.stat-label{color:var(--muted);font-size:11px;text-transform:uppercase;letter-spacing:.05em;font-weight:800}
.stat-value{margin-top:4px;font-size:17px;font-weight:850;overflow-wrap:anywhere}
.notice{margin-top:16px;color:var(--muted);font-size:12px}
.ad-slot{min-height:90px;margin:26px 0;border:1px dashed #d4ccef;border-radius:18px;display:grid;place-items:center;color:#aaa3ba;font-size:12px}
.more-tools{margin:-2px 0 12px;padding:18px 0 6px}
.more-tools-label{margin-bottom:10px;color:var(--ink);font-size:13px;font-weight:800}
.bottom-tabs{padding:0 0 14px;border-bottom:0;gap:7px;view-transition-name:none}
.bottom-tabs .tool-tab{padding:9px 13px;font-size:13px;box-shadow:0 3px 10px rgba(0,0,0,.035)}
.bottom-tabs .tool-tab:hover{transform:none;background:#111;border-color:#111;color:#fff;box-shadow:none}
.bottom-tabs .tool-tab.active{view-transition-name:none;box-shadow:0 5px 14px rgba(124,92,252,.18)}
.info{margin-top:28px;padding:24px 2px 0;max-width:790px;color:var(--muted)}
.info-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;max-width:none}
.info-card{padding:20px;border:1px solid #efecf5;border-radius:18px;background:#fff;box-shadow:0 8px 22px rgba(0,0,0,.04)}
.info-card h2{margin:0 0 8px;color:var(--ink);font-size:18px;letter-spacing:-.02em}
.info-card p{margin:0}
.hidden{display:none!important}

.network{margin-top:34px;padding-top:26px;border-top:1px solid var(--line)}
.network-label{margin-bottom:12px;color:var(--muted);font-size:13px;font-weight:700}
.network-label strong{color:var(--ink)}
.network-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.network-card{display:grid;grid-template-columns:48px minmax(0,1fr);gap:13px;align-items:center;padding:17px;border:1px solid #ececec;border-radius:19px;transition:transform .18s ease,border-color .18s ease}
.network-card:hover{transform:translateY(-2px);border-color:#cfcfcf}
.network-card.random{background:#F6FAFF;border-color:#D8E8FF}
.network-card.calculate{background:#F4FBF8;border-color:#D2EEE5}
.network-icon{width:48px;height:48px;display:grid;place-items:center;border-radius:15px;background:rgba(255,255,255,.8);font-size:23px}
.network-card h2{margin:0 0 3px;font-size:17px;letter-spacing:-.025em}
.network-card p{margin:0;color:var(--muted);font-size:13px;line-height:1.4}
.network-card span{display:inline-block;margin-top:7px;font-size:12px;font-weight:800}

@view-transition{navigation:auto}
::view-transition-old(root),::view-transition-new(root){animation:none;mix-blend-mode:normal}
::view-transition-old(active-tab),::view-transition-new(active-tab),::view-transition-group(active-tab){animation-duration:.34s;animation-timing-function:cubic-bezier(.22,.8,.2,1)}

@media(max-width:720px){
  .toplink{display:none}
  .tool-tabs{flex-wrap:nowrap;margin-right:-16px;padding:6px 16px 14px 0;gap:7px}
  .tool-tab{padding:9px 12px;font-size:13px}
  .bottom-tabs{margin-right:-16px;padding-right:16px;gap:6px}
  .bottom-tabs .tool-tab{padding:8px 11px;font-size:12.5px}
  .grid{grid-template-columns:1fr;gap:12px}
  .tool-card{min-height:0;padding:14px;display:grid;grid-template-columns:60px minmax(0,1fr);grid-template-rows:auto auto;column-gap:15px;row-gap:3px;align-items:center}
  .tool-card .icon{grid-column:1;grid-row:1/span 2;margin-bottom:0}
  .tool-card h2{grid-column:2;grid-row:1;margin:0;align-self:end}
  .tool-card p{grid-column:2;grid-row:2;margin:0;line-height:1.42;align-self:start}
  .hero{padding-top:38px}
  .tool-layout{padding-top:28px}
  .row,.row.three,.info-grid,.stat-grid,.network-grid{grid-template-columns:1fr}
  .result-card{grid-template-columns:48px minmax(0,1fr)}
  .result-card .download{grid-column:1/-1}
  .thumb{width:48px;height:48px}
  .dropzone{min-height:210px;padding:28px 16px}
}