@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Sans:wght@400;500;600;700&display=swap');
/* ===== Skin: SHEET (xls.repair) — clean spreadsheet look, Excel-green #217346 + grid cells ===== */
body.skin-sheet{--gr:#217346;--gr-d:#1a5c37;--gr-l:#e6f2ea;--gr-a:#4caf6e;--gr-a-l:#effaf2;--ok:#188038;--ok-d:#0f6b2e;--ok-l:#e6f4ea;--amber:#b06000;--red:#c5221f;
  --ink:#1b2a22;--mut:#4c5c53;--faint:#8a978f;--line:#e2e8e4;--line2:#cdd8d1;--grid:#eef2f0;--bg:#f6f8f7;--cell:#ffffff;--head:#f0f4f2;--shadow:0 1px 2px rgba(27,42,34,.05),0 3px 10px rgba(27,42,34,.06);
  margin:0;font-family:'IBM Plex Sans',-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:var(--bg);font-size:15px;line-height:1.6;-webkit-font-smoothing:antialiased}
body.skin-sheet *{box-sizing:border-box}
body.skin-sheet h1,body.skin-sheet h2,body.skin-sheet h3,body.skin-sheet h4{font-weight:600;line-height:1.25;letter-spacing:-.01em;color:var(--ink)}
body.skin-sheet a{color:var(--gr);text-decoration:none}
body.skin-sheet a:hover{color:var(--gr-d);text-decoration:underline}

/* ---- Chrome ---- */
body.skin-sheet .g-header{background:var(--cell);border-bottom:1px solid var(--line2);position:sticky;top:0;z-index:20;box-shadow:0 1px 3px rgba(27,42,34,.05)}
body.skin-sheet .g-bar{max-width:1120px;margin:0 auto;display:flex;align-items:center;gap:16px;padding:12px 22px;flex-wrap:wrap}
body.skin-sheet .g-brand{color:var(--ink);font-weight:700;font-size:17px;display:flex;align-items:center;gap:9px}
body.skin-sheet .g-brand::before{content:"";display:inline-block;width:22px;height:22px;background:var(--gr);border-radius:4px;box-shadow:inset 0 0 0 2px var(--gr),inset -11px 0 0 -10px #fff,inset 0 -11px 0 -10px #fff;background-image:linear-gradient(#fff 1px,transparent 0),linear-gradient(90deg,#fff 1px,transparent 0);background-size:7px 7px;background-position:center}
body.skin-sheet .g-nav{display:flex;gap:2px;flex-wrap:wrap;margin-left:auto}
body.skin-sheet .g-nav a{color:var(--mut);font-size:14px;font-weight:500;padding:7px 12px;border-radius:5px}
body.skin-sheet .g-nav a:hover{background:var(--gr-l);color:var(--gr-d);text-decoration:none}
body.skin-sheet .g-nav a.is-main{color:var(--gr);font-weight:700}
body.skin-sheet .g-cta{background:var(--gr);color:#fff;padding:8px 16px;border-radius:5px;font-weight:600;font-size:14px;box-shadow:var(--shadow)}
body.skin-sheet .g-cta:hover{background:var(--gr-d);text-decoration:none}
body.skin-sheet .g-main{max-width:1120px;margin:0 auto;padding:30px 22px 60px}

/* ---- Hero (spreadsheet grid backdrop) ---- */
body.skin-sheet .hero{display:grid;grid-template-columns:1.05fr .95fr;gap:36px;align-items:start;background:var(--cell);
  background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);background-size:26px 26px;
  border:1px solid var(--line2);border-top:3px solid var(--gr);border-radius:8px;padding:36px;margin-bottom:32px;box-shadow:var(--shadow)}
body.skin-sheet .hero-copy{min-width:0}
body.skin-sheet .hero-h1{font-size:35px;margin:0 0 14px;letter-spacing:-.02em}
body.skin-sheet .hero-lead{font-size:16.5px;color:var(--mut);margin:0 0 18px}
body.skin-sheet .hero-badges{list-style:none;display:flex;flex-wrap:wrap;gap:8px;padding:0;margin:0}
body.skin-sheet .hero-badges li{background:var(--ok-l);border:1px solid #bfe3c9;color:var(--ok-d);font-size:12px;font-weight:600;padding:5px 11px;border-radius:4px}
body.skin-sheet .hero-badges li::before{content:"\2713 ";color:var(--ok);font-weight:700}
body.skin-sheet .hero-steps{margin:18px 0 0;padding-left:20px;color:var(--mut);font-size:14px}
body.skin-sheet .hero-steps li{margin:5px 0}
body.skin-sheet .hero-tool,body.skin-sheet .hero-tool-page{min-width:0;align-self:stretch}
body.skin-sheet .hero-tool-page{max-width:680px;margin:0 auto 32px}

/* ---- Repair / upload widget ---- */
body.skin-sheet .cv-widget{background:var(--head);border:1px solid var(--line2);border-radius:8px;padding:8px;box-shadow:var(--shadow)}
body.skin-sheet .cv-drop{padding:38px 26px;text-align:center;border:2px dashed var(--line2);border-radius:6px;background:var(--cell);
  background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);background-size:22px 22px;transition:.18s}
body.skin-sheet .cv-drop.cv-over{background:var(--gr-l);border-color:var(--gr)}
body.skin-sheet .cv-drop-inner{display:flex;flex-direction:column;align-items:center;gap:4px}
body.skin-sheet .cv-icon{font-size:26px;width:58px;height:58px;line-height:58px;border-radius:8px;background:var(--gr-l);color:var(--gr);border:1px solid #bfe3c9}
body.skin-sheet .cv-drop-title{color:var(--ink);font-weight:700;font-size:18px;margin:10px 0 2px}
body.skin-sheet .cv-drop-hint{color:var(--faint);font-size:14px;margin:0 0 16px}
body.skin-sheet .cv-btn{background:var(--gr);color:#fff;border:0;border-radius:6px;padding:12px 28px;font-weight:600;font-size:15px;cursor:pointer;font-family:inherit;box-shadow:var(--shadow)}
body.skin-sheet .cv-btn:hover{background:var(--gr-d)}
body.skin-sheet .cv-accept{font-size:12px;color:var(--faint);margin:12px 0 0}
body.skin-sheet .cv-status{padding:10px;font-size:13px;font-weight:600;text-align:center}
body.skin-sheet .cv-status.cv-busy{color:var(--amber)}
body.skin-sheet .cv-status.cv-ok{color:var(--ok)}
body.skin-sheet .cv-status.cv-error{color:var(--red)}
body.skin-sheet .cv-result{text-align:center;padding:6px 0 10px}
body.skin-sheet .cv-download{display:inline-block;background:var(--ok);color:#fff;padding:12px 26px;border-radius:6px;font-weight:600;box-shadow:var(--shadow)}
body.skin-sheet .cv-download:hover{background:var(--ok-d);color:#fff;text-decoration:none}
body.skin-sheet .cv-loading .cv-drop{opacity:.5;pointer-events:none}

/* ---- Sections & tools ---- */
body.skin-sheet .section-h{font-size:23px;color:var(--ink);margin:0 0 18px;padding-bottom:10px;border-bottom:2px solid var(--gr);display:inline-block}
body.skin-sheet .toolgrid-wrap,body.skin-sheet .content-body,body.skin-sheet .articles-strip,body.skin-sheet .other-tools,body.skin-sheet .faq{margin:42px 0}
body.skin-sheet .toolgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:1px;background:var(--line2);border:1px solid var(--line2);border-radius:8px;overflow:hidden}
body.skin-sheet .tool-card{display:flex;flex-direction:column;gap:5px;background:var(--cell);padding:20px;transition:.15s}
body.skin-sheet .tool-card:hover{text-decoration:none;background:var(--gr-l)}
body.skin-sheet .tool-card.is-main{box-shadow:inset 4px 0 0 var(--gr)}
body.skin-sheet .tool-card-label{color:var(--ink);font-weight:700;font-size:15px}
body.skin-sheet .tool-card-short{font-size:11px;font-weight:700;color:var(--gr);text-transform:uppercase;letter-spacing:.05em}
body.skin-sheet .tool-card-lead{font-size:13px;color:var(--mut)}

/* ---- Longform ---- */
body.skin-sheet .longform{max-width:780px;background:var(--cell);border:1px solid var(--line2);border-radius:8px;padding:34px;box-shadow:var(--shadow)}
body.skin-sheet .longform .lead-copy p:first-child,body.skin-sheet .lead-copy{font-size:17px;color:var(--ink)}
body.skin-sheet .lf-section{margin:8px 0}
body.skin-sheet .longform h2{font-size:23px;margin:28px 0 12px;letter-spacing:-.01em}
body.skin-sheet .longform p{margin:0 0 15px;color:var(--mut)}
body.skin-sheet .longform a{color:var(--gr);font-weight:600}

/* ---- Articles list ---- */
body.skin-sheet .art-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px}
body.skin-sheet .art-card{display:flex;flex-direction:column;gap:7px;background:var(--cell);border:1px solid var(--line2);border-top:3px solid var(--gr-a);border-radius:6px;padding:20px;transition:.15s}
body.skin-sheet .art-card:hover{text-decoration:none;border-top-color:var(--gr);box-shadow:var(--shadow);transform:translateY(-2px)}
body.skin-sheet .art-cluster{font-size:11px;font-weight:700;color:var(--gr);text-transform:uppercase;letter-spacing:.05em}
body.skin-sheet .art-title{color:var(--ink);font-weight:700;font-size:16px;line-height:1.3}
body.skin-sheet .art-excerpt{font-size:13px;color:var(--mut)}
body.skin-sheet .art-meta{font-size:11px;color:var(--faint);margin-top:auto}
body.skin-sheet .articles-strip-head{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:18px;flex-wrap:wrap}
body.skin-sheet .more-link{font-size:14px;font-weight:700;color:var(--gr)}

/* ---- FAQ ---- */
body.skin-sheet .faq-title{font-size:23px;margin:0 0 18px;padding-bottom:10px;border-bottom:2px solid var(--gr);display:inline-block}
body.skin-sheet .faq-list{max-width:780px;display:flex;flex-direction:column;gap:8px}
body.skin-sheet .faq-item{border:1px solid var(--line2);border-radius:6px;background:var(--cell)}
body.skin-sheet .faq-q{cursor:pointer;padding:15px 18px;font-weight:600;font-size:15px;color:var(--ink);list-style:none}
body.skin-sheet .faq-q::-webkit-details-marker{display:none}
body.skin-sheet .faq-q::after{content:"+";float:right;color:var(--gr);font-size:18px;font-weight:700;line-height:1}
body.skin-sheet .faq-item[open]{border-color:var(--gr)}
body.skin-sheet .faq-item[open] .faq-q{color:var(--gr)}
body.skin-sheet .faq-item[open] .faq-q::after{content:"\2212"}
body.skin-sheet .faq-a{padding:0 18px 16px;color:var(--mut)}

/* ---- Article page ---- */
body.skin-sheet .crumbs{font-size:12.5px;color:var(--faint);margin:22px 0 14px}
body.skin-sheet .crumbs span{margin:0 7px;color:var(--line2)}
body.skin-sheet .article{max-width:760px;background:var(--cell);border:1px solid var(--line2);border-radius:8px;padding:38px;box-shadow:var(--shadow)}
body.skin-sheet .article-head{margin-bottom:14px;border-bottom:1px solid var(--line);padding-bottom:14px}
body.skin-sheet .article-head h1{font-size:31px;color:var(--ink);margin:8px 0;letter-spacing:-.02em}
body.skin-sheet .article-meta{color:var(--faint);font-size:13px}
body.skin-sheet .tool-cta,body.skin-sheet .tool-cta-foot{background:var(--gr-l);border:1px solid #bfe3c9;border-left:4px solid var(--gr);border-radius:6px;padding:20px 24px;display:flex;gap:16px;
  align-items:center;justify-content:space-between;flex-wrap:wrap;margin:24px 0}
body.skin-sheet .tool-cta-foot{margin-top:32px}
body.skin-sheet .cta-btn{background:var(--gr);color:#fff;padding:12px 22px;border-radius:6px;font-weight:600;box-shadow:var(--shadow)}
body.skin-sheet .cta-btn:hover{background:var(--gr-d);color:#fff;text-decoration:none}
body.skin-sheet .article-body{color:var(--mut);font-size:16px}
body.skin-sheet .article-body h2{color:var(--ink);font-size:24px;margin:32px 0 12px;letter-spacing:-.01em}
body.skin-sheet .article-body h3{color:var(--ink);font-size:18px;margin:24px 0 10px}
body.skin-sheet .article-body p{margin:0 0 15px}
body.skin-sheet .article-body ul,body.skin-sheet .article-body ol{margin:0 0 15px 24px}
body.skin-sheet .article-body li{margin:4px 0}
body.skin-sheet .article-body a{color:var(--gr);font-weight:600}

/* ---- Index & error ---- */
body.skin-sheet .page-head{margin-bottom:14px;border-bottom:1px solid var(--line);padding-bottom:18px}
body.skin-sheet .page-head h1{font-size:34px;color:var(--ink);letter-spacing:-.02em}
body.skin-sheet .page-head-lead{font-size:17px;color:var(--mut);max-width:640px;margin-top:10px}
body.skin-sheet .cluster-block{margin:40px 0}
body.skin-sheet .empty-note{color:var(--faint);background:var(--cell);border:1px dashed var(--line2);border-radius:6px;padding:24px;text-align:center}
body.skin-sheet .error-page{text-align:center;padding:88px 0}
body.skin-sheet .error-page h1{font-size:92px;color:var(--gr)}

/* ---- Footer ---- */
body.skin-sheet .g-footer{background:var(--cell);border-top:3px solid var(--gr);margin-top:56px;padding:46px 22px 24px}
body.skin-sheet .g-foot-grid{max-width:1120px;margin:0 auto;display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:30px}
body.skin-sheet .g-foot-grid h4{color:var(--ink);font-size:12px;font-weight:700;letter-spacing:.05em;text-transform:uppercase;margin:0 0 12px}
body.skin-sheet .g-foot-grid a{display:block;color:var(--mut);font-size:13.5px;padding:4px 0}
body.skin-sheet .g-foot-grid a:hover{color:var(--gr)}
body.skin-sheet .g-foot-brand .g-brand{color:var(--ink)}
body.skin-sheet .g-copy{max-width:1120px;margin:30px auto 0;border-top:1px solid var(--line);padding-top:20px;font-size:12.5px;color:var(--faint)}

@media(max-width:760px){
  body.skin-sheet .hero{grid-template-columns:1fr;gap:28px;padding:26px}
  body.skin-sheet .hero-h1{font-size:28px}
  body.skin-sheet .toolgrid{grid-template-columns:1fr}
  body.skin-sheet .g-foot-grid{grid-template-columns:1fr 1fr}
}