:root {
  --bg: #f6f7fb;
  --card: #ffffff;
  --text: #171b26;
  --sub: #5d6577;
  --line: #e2e6ef;
  --accent: #2f5bea;
  --accent-soft: #e9efff;
  --ok: #1f9d55;
  --err: #d64545;
  --radius: 14px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1218;
    --card: #181c25;
    --text: #e8ebf2;
    --sub: #9aa3b6;
    --line: #2a303d;
    --accent: #7393ff;
    --accent-soft: #1f2a4a;
    --ok: #4cc38a;
    --err: #ff7b7b;
  }
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
a { color: var(--accent); }
main, .site-header, .site-footer { max-width: 760px; margin: 0 auto; padding: 0 16px; }

.site-header { padding-top: 16px; }
.bar { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px 16px; }
.brand { display: inline-flex; align-items: center; gap: 8px; color: var(--text); text-decoration: none; font-weight: 700; }
.brand svg { color: var(--accent); }
.langs { display: flex; flex-wrap: wrap; gap: 4px 12px; font-size: 14px; }
.langs a { color: var(--sub); text-decoration: none; }
.langs a[aria-current] { color: var(--text); font-weight: 700; }
.tools-nav { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 12px; }
.tools-nav a { padding: 6px 12px; border-radius: 999px; border: 1px solid var(--line); background: var(--card); color: var(--text); text-decoration: none; font-size: 14px; }
.tools-nav a[aria-current] { background: var(--accent); border-color: var(--accent); color: #fff; }
.hint { color: var(--sub); font-size: 13px; margin: 4px 2px 0; }

.pro { margin-top: 16px; padding: 14px 16px; border: 1px solid var(--line); border-radius: 12px; background: var(--bg); transition: border-color .2s, box-shadow .2s; }
.pro.highlight { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.pro-head { display: flex; align-items: center; gap: 10px; }
.pro-badge { font-size: 13px; padding: 2px 10px; border-radius: 999px; background: var(--ok); color: #fff; }
.pro-text { margin: 6px 0 10px; color: var(--sub); font-size: 15px; }
.pro-actions { display: flex; flex-wrap: wrap; gap: 8px; }
.pro-actions a.btn { text-decoration: none; }
.pro-form { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; }
.pro-form input { flex: 1 1 220px; min-width: 0; font: inherit; padding: 8px 12px; border-radius: 10px; border: 1px solid var(--line); background: var(--card); color: var(--text); }
.pro-form .hint { flex-basis: 100%; }
.pro-msg { margin: 8px 0 0; font-size: 14px; color: var(--sub); }
.pro-msg:empty { display: none; }

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 10px; }
.card { display: flex; flex-direction: column; gap: 4px; padding: 14px 16px; border: 1px solid var(--line); border-radius: 12px; background: var(--card); color: var(--text); text-decoration: none; }
.card:hover { border-color: var(--accent); }
.card span { color: var(--sub); font-size: 14px; }

.hero { text-align: center; padding: 28px 0 8px; }
h1 { font-size: clamp(28px, 6vw, 40px); line-height: 1.2; margin: 0 0 10px; }
.lead { color: var(--sub); font-size: 18px; margin: 0 auto 16px; max-width: 560px; }
.lead strong { color: var(--text); }
.badges { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; }
.badges li { background: var(--card); border: 1px solid var(--line); border-radius: 999px; padding: 4px 12px; font-size: 14px; }

.tool { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; margin: 22px 0 36px; }
.dropzone {
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 4px;
  min-height: 190px; padding: 24px; text-align: center; cursor: pointer;
  border: 2px dashed var(--line); border-radius: var(--radius); background: var(--bg);
  transition: border-color .15s, background .15s;
}
.dropzone:hover, .dropzone.drag { border-color: var(--accent); background: var(--accent-soft); }
.dropzone input { position: absolute; width: 1px; height: 1px; opacity: 0; pointer-events: none; }
.dropzone:focus-within { outline: 3px solid var(--accent); outline-offset: 2px; }
.dz-icon { font-size: 34px; }
.dz-title { font-size: 20px; font-weight: 700; }
.dz-sub { color: var(--sub); }

.options { display: flex; flex-wrap: wrap; gap: 18px; align-items: center; margin: 16px 2px 4px; color: var(--sub); font-size: 15px; }
.options label { display: flex; align-items: center; gap: 8px; }
.options select { font: inherit; padding: 6px 10px; border-radius: 8px; border: 1px solid var(--line); background: var(--bg); color: var(--text); }
.options input[type=range] { width: 140px; accent-color: var(--accent); }

.status { min-height: 1.6em; margin: 10px 2px; color: var(--sub); font-size: 15px; }
.actions { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 12px; }
.btn {
  font: inherit; font-weight: 600; padding: 9px 16px; border-radius: 10px; cursor: pointer;
  border: 1px solid var(--line); background: var(--bg); color: var(--text);
}
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn:disabled { opacity: .55; cursor: default; }

.results { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.item { display: grid; grid-template-columns: 56px 1fr auto; gap: 12px; align-items: center; padding: 8px; border: 1px solid var(--line); border-radius: 12px; }
.thumb { width: 56px; height: 56px; border-radius: 8px; object-fit: cover; background: var(--bg); }
.meta { min-width: 0; }
.name { font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.info { color: var(--sub); font-size: 14px; }
.info.ok { color: var(--ok); }
.info.err { color: var(--err); }
.item a.btn { text-decoration: none; padding: 7px 12px; font-size: 14px; }

.content { padding-bottom: 20px; }
.content h2 { font-size: 22px; margin: 32px 0 10px; }
.steps { padding-left: 22px; }
.steps li { margin-bottom: 6px; }
details { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 12px 16px; margin-bottom: 8px; }
summary { cursor: pointer; font-weight: 600; }
details p { margin: 10px 0 2px; color: var(--sub); }

.site-footer { border-top: 1px solid var(--line); padding-top: 18px; padding-bottom: 32px; color: var(--sub); font-size: 14px; text-align: center; }
.site-footer nav { display: flex; justify-content: center; gap: 18px; margin-bottom: 6px; }

.doc { padding: 20px 0 40px; }
.doc h1 { font-size: 30px; }
.doc h2 { font-size: 20px; margin-top: 28px; }
.doc p, .doc li { color: var(--sub); }