/* Copyright (c) 2026 FileSort. All rights reserved. See LICENSE. */
:root {
  --ink: #16181d;
  --soft: #5b616e;
  --line: #dcdfe4;
  --page: #ffffff;
  --band: #f5f5f2;
  --red: #d63a25;
  --red-dark: #b82e1b;
  --green: #1c7c43;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--page);
  font: 16px/1.6 -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
a { color: inherit; }
.wrap { max-width: 880px; margin: 0 auto; padding: 0 20px; }
[hidden] { display: none !important; }

/* header */
.site { border-bottom: 1px solid var(--line); }
.site .wrap { display: flex; align-items: center; justify-content: space-between; height: 60px; max-width: 1080px; }
.logo { display: flex; align-items: center; gap: 9px; font-weight: 700; font-size: 18px; text-decoration: none; }
.logo svg { width: 24px; height: 24px; color: var(--red); }
.site nav a { margin-left: 26px; text-decoration: none; font-size: 15px; color: var(--soft); }
.site nav a:hover, .site nav a.here { color: var(--ink); }

/* tool */
.tool { background: var(--band); padding: 56px 0 64px; text-align: center; }
h1 { font-size: 40px; line-height: 1.15; margin: 0 0 12px; letter-spacing: -0.01em; }
.lead { font-size: 19px; color: var(--soft); max-width: 600px; margin: 0 auto 32px; }
.drop { background: var(--page); border: 2px dashed #c3c7cf; border-radius: 10px; padding: 44px 20px 36px; }
body.dragging .drop { border-color: var(--red); background: #fff6f4; }
.drop p { margin: 14px 0 0; color: var(--soft); }
.note { color: var(--red-dark) !important; }

button { font: inherit; cursor: pointer; }
.btn { border: 1px solid #b9bec8; background: var(--page); color: var(--ink); border-radius: 6px; padding: 9px 16px; font-weight: 600; font-size: 15px; }
.btn:hover:not(:disabled) { background: #f0f1f3; }
.btn:disabled { color: #a3a8b3; border-color: var(--line); cursor: default; }
.btn.red { background: var(--red); border-color: var(--red); color: #fff; }
.btn.red:hover:not(:disabled) { background: var(--red-dark); border-color: var(--red-dark); }
.btn.red:disabled { background: #e9aca3; border-color: #e9aca3; color: #fff; }
.btn.large { font-size: 20px; padding: 16px 44px; border-radius: 8px; }
.btn.small { padding: 6px 12px; font-size: 14px; font-weight: 500; }
.link { border: 0; background: none; padding: 0; color: var(--soft); text-decoration: underline; font-size: 15px; }
.link:hover { color: var(--ink); }

/* workspace */
#workspace { background: var(--page); border: 1px solid var(--line); border-radius: 10px; padding: 22px 24px 24px; text-align: left; }
.ws-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.ws-head .where { min-width: 0; font-size: 18px; font-weight: 700; overflow-wrap: anywhere; }
.ws-head .where span { display: block; font-size: 13px; font-weight: 400; color: var(--soft); }
.ws-head .btn + .btn { margin-left: 6px; }
.ws-opts { display: grid; gap: 12px; margin-top: 18px; padding: 16px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); font-size: 15px; }
.opt-row { display: flex; align-items: center; gap: 8px 22px; flex-wrap: wrap; }
.ws-opts .by { color: var(--soft); width: 62px; margin-right: -10px; }
#modes { display: inline-flex; }
#modes button { border: 1px solid #b9bec8; background: var(--page); padding: 6px 13px; font-size: 14px; color: var(--ink); margin-left: -1px; }
#modes button:first-child { border-radius: 6px 0 0 6px; margin-left: 0; }
#modes button:last-child { border-radius: 0 6px 6px 0; }
#modes button.on { background: var(--ink); border-color: var(--ink); color: #fff; }
.ws-opts label { display: inline-flex; align-items: center; gap: 7px; }
.ws-opts input { width: 16px; height: 16px; accent-color: var(--ink); margin: 0; }
#summary { margin: 18px 0 10px; font-weight: 600; }
.rows { border: 1px solid var(--line); border-radius: 6px; max-height: 380px; overflow: auto; }
.rows:empty { display: none; }
.rows details + details { border-top: 1px solid var(--line); }
.rows summary { display: flex; justify-content: space-between; gap: 12px; padding: 9px 14px; cursor: pointer; list-style: none; }
.rows summary::-webkit-details-marker { display: none; }
.rows summary:hover { background: #f7f7f5; }
.rows .name { font-weight: 600; overflow-wrap: anywhere; }
.rows .name::before { content: "▸"; display: inline-block; width: 16px; color: var(--soft); font-weight: 400; }
.rows details[open] .name::before { content: "▾"; }
.rows .count { color: var(--soft); font-size: 14px; white-space: nowrap; }
.rows ul { margin: 0; padding: 2px 14px 12px 30px; list-style: none; font-size: 14px; color: var(--soft); }
.rows li { padding: 2px 0; overflow-wrap: anywhere; }
.rows em { font-style: normal; color: var(--red-dark); }
#progress { height: 4px; background: var(--line); margin-top: 16px; }
#progress-bar { height: 100%; width: 0; background: var(--red); }
.ws-foot { display: flex; align-items: center; justify-content: flex-end; gap: 12px; flex-wrap: wrap; margin-top: 18px; }
.status { margin: 16px 0 0; font-size: 15px; color: var(--soft); overflow-wrap: anywhere; }
.status:empty { display: none; }
.status.good { color: #14602f; background: #e8f4ec; border-left: 4px solid var(--green); padding: 10px 14px; font-weight: 600; }
.status.bad { color: #8f2414; background: #fbeae7; border-left: 4px solid var(--red); padding: 10px 14px; }
.ws-foot .btn + .btn { margin-left: 6px; }

/* text sections */
.section { padding: 56px 0; }
.section + .section { border-top: 1px solid var(--line); }
h2 { font-size: 26px; margin: 0 0 22px; }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; margin: 0; padding: 0; list-style: none; counter-reset: step; }
.steps li { counter-increment: step; }
.steps li::before { content: counter(step); display: block; font-size: 30px; font-weight: 700; color: var(--red); line-height: 1; margin-bottom: 10px; }
.steps h3 { margin: 0 0 4px; font-size: 17px; }
.steps p { margin: 0; color: var(--soft); }
.faq details { border-bottom: 1px solid var(--line); padding: 14px 0; }
.faq details:first-of-type { border-top: 1px solid var(--line); }
.faq summary { cursor: pointer; font-weight: 600; }
.faq p { margin: 8px 0 0; color: var(--soft); max-width: 700px; }

/* plain pages */
.page { padding: 48px 0 64px; }
.page h1 { font-size: 32px; }
.page p, .page li { color: #3b404b; max-width: 700px; }
.page h2 { font-size: 20px; margin: 32px 0 8px; }
.files { list-style: none; padding: 0; margin: 28px 0; border: 1px solid var(--line); border-radius: 8px; max-width: 700px; }
.files li { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 16px 18px; max-width: none; }
.files li + li { border-top: 1px solid var(--line); }
.files li.mine { background: var(--band); }
.files strong { display: block; color: var(--ink); }
.files small { color: var(--soft); font-size: 14px; }
.files a.btn { text-decoration: none; white-space: nowrap; }
.files a.off { color: #a3a8b3; border-color: var(--line); background: var(--page); pointer-events: none; font-weight: 500; }

footer { border-top: 1px solid var(--line); padding: 26px 0 40px; font-size: 14px; color: var(--soft); }
footer .wrap { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; max-width: 1080px; }
footer a { margin-left: 20px; text-decoration: none; }
footer a:hover { text-decoration: underline; }

@media (max-width: 640px) {
  h1 { font-size: 30px; }
  .lead { font-size: 17px; }
  .tool { padding: 36px 0 44px; }
  .steps { grid-template-columns: 1fr; gap: 24px; }
  .site nav a { margin-left: 16px; }
  #workspace { padding: 16px; }
  .btn.large { padding: 14px 28px; }
}

/* added: small refinements */
.site nav a.here { box-shadow: 0 2px 0 var(--red); padding-bottom: 4px; }
.under { margin: 16px 0 0; font-size: 14px; color: var(--soft); }
.btn:focus-visible, .link:focus-visible, #modes button:focus-visible, summary:focus-visible, a:focus-visible { outline: 2px solid var(--ink); outline-offset: 2px; }
.ws-foot .btn.red { padding: 11px 22px; font-size: 16px; }
.rows summary { align-items: center; }

/* download + privacy */
.page .intro { font-size: 19px; color: var(--soft); margin: 0 0 8px; }
table.facts { border-collapse: collapse; width: 100%; max-width: 700px; margin: 12px 0 0; font-size: 15px; }
table.facts th, table.facts td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
table.facts th { font-size: 13px; color: var(--soft); font-weight: 600; border-bottom-color: #b9bec8; }
table.facts td:first-child { color: var(--ink); }
table.facts td + td { color: #3b404b; }
.page .faq { max-width: 700px; margin-top: 12px; }
.page code { background: var(--band); padding: 1px 5px; border-radius: 4px; font-size: 14px; }
.page .fine { font-size: 14px; color: var(--soft); margin-top: 20px; }
.page .intro + table.facts { margin-top: 24px; }

@media (max-width: 640px) {
  .ws-opts .by { width: 100%; }
}
#picker[hidden] + .under { display: none; }
.zip-note { margin: 16px 0 0; padding: 10px 14px; background: #fdf6e3; border-left: 4px solid #d9a514; font-size: 15px; color: #5c4a10; }
#zip-hint { font-size: 14px; max-width: 520px; margin-left: auto; margin-right: auto; }

/* reading pages */
.page h2 { scroll-margin-top: 20px; }
.page h3 { font-size: 17px; margin: 22px 0 4px; }
.page h3 + p { margin-top: 0; }
.page ul { padding-left: 22px; }
.page li { margin: 4px 0; }
.page a { color: var(--red-dark); }
.page .toc { list-style: none; padding: 16px 20px; margin: 24px 0 0; background: var(--band); border-radius: 8px; max-width: 700px; columns: 2; }
.page .toc li { margin: 0 0 6px; }
.page .toc a { color: var(--ink); }
table.facts.wide { max-width: 880px; }
table.facts.wide td:first-child { font-weight: 600; white-space: nowrap; }
.more { margin: 26px 0 0; color: var(--soft); }
.more a { color: var(--red-dark); }
footer span a:first-child { margin-left: 0; }
@media (max-width: 640px) {
  .site .wrap { height: auto; padding-top: 10px; padding-bottom: 10px; flex-wrap: wrap; gap: 4px 0; }
  .site nav a { margin: 0 16px 0 0; font-size: 14px; }
  .page .toc { columns: 1; }
  footer a { margin: 0 16px 0 0; }
  table.facts.wide td:first-child { white-space: normal; }
}