/* ============ Toolbox — styles ============ */
:root{
  --bg:#f6f5f2;
  --panel:#ffffff;
  --panel-2:#fbfaf8;
  --ink:#1b1a17;
  --muted:#76716a;
  --line:#e7e3dc;
  --line-2:#efece6;
  --accent:#ec5a13;
  --accent-soft:#fdeee4;
  --accent-ink:#b8430a;
  --ok:#1f8a4c;
  --err:#cc2e2e;
  --code-bg:#f4f2ee;
  --shadow:0 1px 2px rgba(20,18,15,.05), 0 8px 24px rgba(20,18,15,.05);
  --radius:14px;
  --sans:"Public Sans", system-ui, sans-serif;
  --display:"Space Grotesk", system-ui, sans-serif;
  --mono:"JetBrains Mono", ui-monospace, monospace;
}
[data-theme="dark"]{
  --bg:#0e0e11;
  --panel:#17171b;
  --panel-2:#1c1c21;
  --ink:#ece9e3;
  --muted:#8f8a82;
  --line:#2a2a31;
  --line-2:#222228;
  --accent:#ff7a3c;
  --accent-soft:#2a1c12;
  --accent-ink:#ffb08a;
  --code-bg:#1b1b20;
  --shadow:0 1px 2px rgba(0,0,0,.4), 0 10px 30px rgba(0,0,0,.35);
}

*{box-sizing:border-box}
html,body{margin:0;height:100%}
body{
  font-family:var(--sans);
  background:var(--bg);
  color:var(--ink);
  font-size:15px;
  line-height:1.5;
  -webkit-font-smoothing:antialiased;
}
button,input,textarea,select{font-family:inherit;font-size:inherit;color:inherit}
a{color:var(--accent-ink);text-decoration:none}

#app{display:grid;grid-template-columns:280px 1fr;height:100vh}

/* ---------- sidebar ---------- */
#sidebar{
  background:var(--panel);
  border-right:1px solid var(--line);
  display:flex;flex-direction:column;
  min-height:0;
}
.brand{
  display:flex;align-items:center;gap:11px;
  padding:18px 20px 14px;
}
.brand-mark{
  width:34px;height:34px;border-radius:9px;
  background:var(--accent);color:#fff;
  font-family:var(--mono);font-weight:700;font-size:22px;
  display:grid;place-items:center;
}
.brand-name{font-family:var(--display);font-weight:700;font-size:21px;letter-spacing:-.02em;flex:1}
#theme-toggle{
  background:transparent;border:1px solid var(--line);border-radius:8px;
  width:32px;height:32px;cursor:pointer;font-size:15px;color:var(--muted);
}
#theme-toggle:hover{border-color:var(--accent);color:var(--accent)}

.search-wrap{padding:4px 16px 12px}
#search{
  width:100%;padding:10px 12px;border-radius:10px;
  border:1px solid var(--line);background:var(--panel-2);
  outline:none;
}
#search:focus{border-color:var(--accent);background:var(--panel)}

#nav{flex:1;overflow-y:auto;padding:4px 10px 14px}
.cat-group{margin-bottom:6px}
.cat-head{
  font-family:var(--display);font-weight:600;
  font-size:11px;letter-spacing:.09em;text-transform:uppercase;
  color:var(--muted);padding:12px 10px 6px;
  display:flex;align-items:center;gap:8px;
}
.cat-head .dot{width:7px;height:7px;border-radius:50%;background:var(--accent);opacity:.65}
.nav-item{
  display:flex;align-items:center;gap:9px;
  padding:7px 10px;border-radius:8px;cursor:pointer;
  color:var(--ink);font-size:14px;
}
.nav-item:hover{background:var(--panel-2)}
.nav-item.active{background:var(--accent-soft);color:var(--accent-ink);font-weight:600}
.nav-item .ic{font-size:13px;width:16px;text-align:center;opacity:.8}
.side-foot{padding:12px 20px;border-top:1px solid var(--line);color:var(--muted);font-size:12px}

/* ---------- main ---------- */
#main{display:flex;flex-direction:column;min-width:0;min-height:0}
#topbar{
  height:60px;flex:0 0 60px;
  display:flex;align-items:center;gap:14px;
  padding:0 26px;border-bottom:1px solid var(--line);
  background:color-mix(in srgb,var(--panel) 70%, transparent);
  backdrop-filter:blur(6px);
}
#menu-btn{display:none;background:none;border:none;font-size:20px;cursor:pointer;color:var(--ink)}
#crumb{flex:1;font-size:14px;color:var(--muted)}
#crumb b{color:var(--ink);font-family:var(--display);font-weight:600}
.ghost-link{font-size:13px;color:var(--muted);cursor:pointer}
.ghost-link:hover{color:var(--accent)}

#view{flex:1;overflow-y:auto;padding:32px 40px 80px}

/* ---------- home ---------- */
.home-hero{max-width:760px;margin-bottom:34px}
.home-hero h1{font-family:var(--display);font-size:38px;line-height:1.05;letter-spacing:-.03em;margin:0 0 12px}
.home-hero h1 .hl{color:var(--accent)}
.home-hero p{font-size:16px;color:var(--muted);margin:0;max-width:560px}
.home-cat{margin-bottom:34px}
.home-cat-head{display:flex;align-items:baseline;gap:12px;margin:0 0 14px}
.home-cat-head h2{font-family:var(--display);font-size:19px;margin:0;letter-spacing:-.01em}
.home-cat-head span{color:var(--muted);font-size:13px}
.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:12px}
.tool-card{
  background:var(--panel);border:1px solid var(--line);border-radius:12px;
  padding:15px 16px;cursor:pointer;transition:.13s ease;
  display:flex;flex-direction:column;gap:5px;
}
.tool-card:hover{border-color:var(--accent);transform:translateY(-2px);box-shadow:var(--shadow)}
.tool-card .tc-name{font-weight:600;font-family:var(--display);font-size:15px}
.tool-card .tc-desc{color:var(--muted);font-size:12.5px;line-height:1.4}
.empty-note{color:var(--muted);padding:40px 0;text-align:center}

/* ---------- tool view ---------- */
.tool-head{margin-bottom:22px}
.tool-head h1{font-family:var(--display);font-size:27px;margin:0 0 6px;letter-spacing:-.02em}
.tool-head p{color:var(--muted);margin:0;max-width:640px;font-size:14.5px}
.tool-body{max-width:1080px}

.io-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
@media(max-width:880px){.io-grid{grid-template-columns:1fr}}
.io-col{display:flex;flex-direction:column;gap:8px;min-width:0}
.io-label{font-size:12px;font-weight:600;letter-spacing:.04em;text-transform:uppercase;color:var(--muted)}
textarea.ta,input.fld,select.fld,textarea.fld{
  width:100%;border:1px solid var(--line);border-radius:10px;
  background:var(--panel);padding:12px 13px;outline:none;resize:vertical;
}
textarea.ta{min-height:300px;font-family:var(--mono);font-size:13px;line-height:1.55;white-space:pre;overflow:auto}
textarea.ta.wrap{white-space:pre-wrap}
.fld:focus,textarea.ta:focus{border-color:var(--accent)}
textarea.out{background:var(--panel-2)}

.row{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.btn{
  border:1px solid var(--line);background:var(--panel);
  padding:9px 15px;border-radius:9px;cursor:pointer;font-weight:600;font-size:13.5px;
  transition:.12s;
}
.btn:hover{border-color:var(--accent);color:var(--accent)}
.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}
.btn.primary:hover{filter:brightness(1.05);color:#fff}
.btn.ghost{border-color:transparent;color:var(--muted)}
.btn.ghost:hover{color:var(--accent);background:var(--panel-2)}
.btn.sm{padding:6px 11px;font-size:12.5px}

.field{display:flex;flex-direction:column;gap:6px;margin-bottom:14px}
.field label{font-size:13px;font-weight:600;color:var(--ink)}
.field .hint{font-size:12px;color:var(--muted);font-weight:400}
.field-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:14px}

.result{
  margin-top:18px;background:var(--panel);border:1px solid var(--line);
  border-radius:12px;padding:18px 20px;
}
.result.big{display:flex;flex-wrap:wrap;gap:26px;align-items:flex-end}
.stat{display:flex;flex-direction:column;gap:2px}
.stat .v{font-family:var(--display);font-size:30px;font-weight:700;letter-spacing:-.02em;line-height:1}
.stat .v.accent{color:var(--accent)}
.stat .k{font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.05em}
.kvtable{width:100%;border-collapse:collapse;font-size:13.5px}
.kvtable td{padding:7px 4px;border-bottom:1px solid var(--line-2)}
.kvtable td:first-child{color:var(--muted);width:45%}
.kvtable tr:last-child td{border-bottom:none}

.status{font-size:13px;font-weight:600;margin-top:4px}
.status.ok{color:var(--ok)}
.status.err{color:var(--err)}
.status.muted{color:var(--muted);font-weight:400}

.chips{display:flex;flex-wrap:wrap;gap:7px}
.chip{padding:4px 10px;border-radius:999px;background:var(--panel-2);border:1px solid var(--line);font-size:12.5px;font-family:var(--mono)}

pre.code{background:var(--code-bg);border:1px solid var(--line);border-radius:10px;padding:14px;overflow:auto;font-family:var(--mono);font-size:13px;line-height:1.5;white-space:pre-wrap;word-break:break-word}
.md-preview{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:18px 22px;min-height:300px}
.md-preview h1,.md-preview h2,.md-preview h3{font-family:var(--display);margin:.6em 0 .3em}
.md-preview code{background:var(--code-bg);padding:2px 5px;border-radius:5px;font-family:var(--mono);font-size:.9em}
.md-preview pre{background:var(--code-bg);padding:12px;border-radius:8px;overflow:auto}
.md-preview blockquote{border-left:3px solid var(--accent);margin:.6em 0;padding:2px 14px;color:var(--muted)}
.md-preview a{text-decoration:underline}
.md-preview table{border-collapse:collapse}
.md-preview td,.md-preview th{border:1px solid var(--line);padding:6px 10px}

.swatch{height:54px;border-radius:10px;border:1px solid var(--line)}
.colorgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(90px,1fr));gap:10px}

.subtle{color:var(--muted);font-size:13px}
.note-box{background:var(--accent-soft);border:1px solid color-mix(in srgb,var(--accent) 30%,transparent);border-radius:10px;padding:12px 14px;font-size:13px;color:var(--accent-ink);margin-top:14px}

.dropzone{border:2px dashed var(--line);border-radius:12px;padding:40px;text-align:center;color:var(--muted);cursor:pointer;background:var(--panel-2)}
.dropzone:hover,.dropzone.drag{border-color:var(--accent);color:var(--accent)}
.preview-img{max-width:100%;border-radius:10px;border:1px solid var(--line);background:var(--panel-2)}

.diff-line{font-family:var(--mono);font-size:13px;padding:1px 8px;white-space:pre-wrap}
.diff-line.add{background:color-mix(in srgb,var(--ok) 16%,transparent)}
.diff-line.del{background:color-mix(in srgb,var(--err) 16%,transparent)}

#toast{
  position:fixed;bottom:26px;left:50%;transform:translateX(-50%) translateY(20px);
  background:var(--ink);color:var(--bg);padding:10px 18px;border-radius:10px;
  font-size:13.5px;font-weight:600;opacity:0;pointer-events:none;transition:.22s;z-index:100;
}
#toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

#scrim{display:none;position:fixed;inset:0;background:rgba(0,0,0,.4);z-index:40}

/* ---------- per-page SEO / FAQ content ---------- */
.seo-wrap{max-width:840px;margin:48px 0 0;border-top:1px solid var(--line);padding-top:34px;display:flex;flex-direction:column;gap:34px}
.seo-block h2{font-family:var(--display);font-size:20px;margin:0 0 13px;letter-spacing:-.01em}
.seo-block p{font-size:14.5px;line-height:1.7;margin:0 0 10px;max-width:700px;text-wrap:pretty}
.seo-block p strong{font-weight:600}
.seo-block ol{margin:0;padding-left:20px;line-height:1.7;max-width:700px}
.seo-block ol li{margin-bottom:7px;padding-left:4px}
.seo-keywords{display:flex;flex-wrap:wrap;gap:7px;margin-top:4px}
.faq details{border:1px solid var(--line);border-radius:11px;padding:0 17px;margin-bottom:10px;background:var(--panel);transition:.12s}
.faq details[open]{border-color:color-mix(in srgb,var(--accent) 40%,transparent)}
.faq summary{cursor:pointer;font-weight:600;padding:14px 0;font-family:var(--display);font-size:15px;list-style:none;display:flex;justify-content:space-between;gap:14px;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:'+';color:var(--accent);font-size:20px;font-weight:400;line-height:1}
.faq details[open] summary::after{content:'–'}
.faq details p{padding:0 0 15px;color:var(--muted);font-size:14px;line-height:1.65;margin:0;max-width:680px}

/* responsive */
@media(max-width:840px){
  #app{grid-template-columns:1fr}
  #sidebar{position:fixed;z-index:50;width:280px;height:100vh;transform:translateX(-100%);transition:.22s}
  #sidebar.open{transform:none}
  #scrim.show{display:block}
  #menu-btn{display:block}
  #view{padding:22px 18px 70px}
  .home-hero h1{font-size:30px}
}

/* ============ FreeToolHub — Enhanced UI ============ */

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: color-mix(in srgb, var(--accent) 10%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent) 30%, transparent);
  border-radius: 100px;
  padding: 5px 14px;
  font-size: 12px;
  font-weight: 600;
  color: var(--accent-ink);
  margin-bottom: 18px;
}
.hero-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--accent);
  animation: heropal 2s ease-in-out infinite;
}
@keyframes heropal { 0%,100%{opacity:1} 50%{opacity:.4} }
@keyframes fadeUp { from{opacity:0;transform:translateY(18px)} to{opacity:1;transform:translateY(0)} }
@keyframes slideIn { from{opacity:0;transform:translateY(12px)} to{opacity:1;transform:translateY(0)} }
.anim-fade { animation: fadeUp .45s ease both; }
.anim-slide { animation: slideIn .4s ease both; }

.hero-stats {
  display: flex;
  margin-top: 28px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--panel);
  overflow: hidden;
  max-width: 520px;
}
.hstat {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 14px 10px;
  border-right: 1px solid var(--line);
  gap: 3px;
}
.hstat:last-child { border-right: none; }
.hstat-n {
  font-family: var(--display);
  font-size: 22px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.02em;
  line-height: 1;
}
.hstat-l { font-size: 11px; color: var(--muted); text-align: center; font-weight: 500; }

.cat-ic {
  font-size: 16px;
  width: 28px; height: 28px;
  border-radius: 7px;
  background: var(--panel-2);
  border: 1px solid var(--line);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.home-cat-head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 14px;
}
.home-cat-head h2 { font-family: var(--display); font-size: 18px; margin: 0; letter-spacing: -0.01em; flex: 1; }
.home-cat-head span {
  color: var(--muted); font-size: 12px;
  background: var(--panel-2); border: 1px solid var(--line);
  padding: 2px 8px; border-radius: 100px;
}

.tool-card { position: relative; overflow: hidden; }
.tool-card::after {
  content: '→';
  position: absolute; right: 14px; top: 50%;
  transform: translateY(-50%) translateX(4px);
  font-size: 14px; color: var(--accent);
  opacity: 0; transition: .15s ease;
}
.tool-card:hover::after { opacity: 1; transform: translateY(-50%) translateX(0); }
.tool-card .tc-name { padding-right: 18px; }

.home-hero h1 { font-size: 42px !important; line-height: 1.04 !important; letter-spacing: -0.04em !important; margin: 0 0 14px !important; }
.home-hero p { font-size: 15.5px; line-height: 1.65; max-width: 560px; }
.home-hero strong { color: var(--ink); }

.card-grid .tool-card { animation: slideIn .3s ease both; }
.card-grid .tool-card:nth-child(1) { animation-delay:.02s }
.card-grid .tool-card:nth-child(2) { animation-delay:.04s }
.card-grid .tool-card:nth-child(3) { animation-delay:.06s }
.card-grid .tool-card:nth-child(4) { animation-delay:.08s }
.card-grid .tool-card:nth-child(5) { animation-delay:.10s }
.card-grid .tool-card:nth-child(6) { animation-delay:.12s }

.nav-item.active { border-left: 3px solid var(--accent); padding-left: 7px !important; }

/* Sidebar footer links */
.side-foot { font-size: 11.5px !important; }
.side-foot-links {
  display: flex;
  gap: 12px;
  margin-top: 8px;
  flex-wrap: wrap;
}
.side-foot-links a {
  font-size: 11px;
  color: var(--muted);
  text-decoration: none;
  font-weight: 500;
}
.side-foot-links a:hover { color: var(--accent); }

/* Home footer */
.home-footer {
  margin-top: 64px;
  border-top: 1px solid var(--line);
  padding-top: 40px;
  padding-bottom: 40px;
}
.home-footer-inner { max-width: 100%; }
.home-footer-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--display);
  font-weight: 700;
  font-size: 17px;
  color: var(--ink);
  margin-bottom: 10px;
}
.home-footer-desc {
  font-size: 13px;
  color: var(--muted);
  margin: 0 0 20px;
  max-width: 440px;
  line-height: 1.6;
}
.home-footer-links {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}
.home-footer-links a {
  font-size: 13px;
  color: var(--muted);
  text-decoration: none;
  font-weight: 500;
  transition: .12s;
}
.home-footer-links a:hover { color: var(--accent); }
.home-footer-copy {
  font-size: 12px;
  color: var(--muted);
  opacity: 0.6;
}

@media (max-width: 560px) {
  .home-hero h1 { font-size: 30px !important; }
  .hero-stats { max-width: 100%; }
  .hstat-n { font-size: 18px; }
  .home-footer-links { gap: 14px; }
}

/* Topbar nav links */
.topbar-links {
  display: flex;
  align-items: center;
  gap: 2px;
}
.topbar-divider {
  width: 1px;
  height: 16px;
  background: var(--line);
  margin: 0 6px;
}
@media (max-width: 640px) {
  .topbar-links .ghost-link:not(#random-tool) { display: none; }
  .topbar-divider { display: none; }
}