/* BConvert — light default theme with optional dark mode. Vanilla CSS, no frameworks. */
:root {
  --bg: #ffffff;
  --bg-2: #f5f5fa;
  --card: #ffffff;
  --card-2: #f4f4f9;
  --border: #e2e2ed;
  --border-soft: #ececf3;
  --text: #1a1a28;
  --muted: #55556e;
  --faint: #8b8ba3;
  --purple: #7c3aed;
  --purple-deep: #7c3aed;
  --cyan: #0e9fc4;
  --cyan-deep: #0e9fc4;
  --grad: #7c3aed;
  --radius: 14px;
  --radius-sm: 9px;
  --shadow: 0 18px 50px rgba(25, 25, 60, 0.10);
  --header-bg: rgba(255, 255, 255, 0.85);
  --hover-bg: rgba(20, 20, 50, 0.06);
  --header-h: 68px;
  --maxw: 1180px;
  --font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", "Cascadia Code", Menlo, Consolas, monospace;
  color-scheme: light;
}
[data-theme="dark"] {
  --bg: #0a0a13;
  --bg-2: #0e0e1a;
  --card: #131322;
  --card-2: #171728;
  --border: #24243a;
  --border-soft: #1c1c2c;
  --text: #eceaf6;
  --muted: #a2a0bd;
  --faint: #6f6e8c;
  --purple: #a855f7;
  --purple-deep: #7c3aed;
  --cyan: #22d3ee;
  --cyan-deep: #0ea5c9;
  --grad: #7c3aed;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.45);
  --header-bg: rgba(10, 10, 19, 0.82);
  --hover-bg: rgba(255, 255, 255, 0.06);
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
body { background: var(--bg); }
img { max-width: 100%; height: auto; }
a { color: var(--cyan); text-decoration: none; }
a:hover { text-decoration: underline; }
.container { width: min(var(--maxw), 100% - 2.5rem); margin-inline: auto; }
main { display: block; }

/* ---------- Sticky header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 200;
  height: var(--header-h);
  background: var(--header-bg);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-soft);
}
.header-inner {
  height: var(--header-h);
  display: flex;
  align-items: center;
  gap: 1rem;
}
.brand { display: flex; align-items: center; gap: 0.6rem; flex-shrink: 0; }
.brand:hover { text-decoration: none; }
.brand-mark {
  width: 38px; height: 38px;
  display: grid; place-items: center;
  font-weight: 800; font-size: 0.95rem; letter-spacing: 0.02em;
  color: #fff; background: var(--grad);
  border-radius: 11px;
  box-shadow: 0 6px 18px rgba(168, 85, 247, 0.35);
}
.brand-name {
  font-size: 1.35rem; font-weight: 800; letter-spacing: -0.02em; color: var(--text);
}
.brand-name em { font-style: normal; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }

.site-nav { display: flex; align-items: center; gap: 0.25rem; margin-left: 0.5rem; }
.site-nav a {
  color: var(--muted); font-weight: 600; font-size: 0.95rem;
  padding: 0.5rem 0.8rem; border-radius: 8px; white-space: nowrap;
}
.site-nav a:hover { color: var(--text); background: var(--hover-bg); text-decoration: none; }
.site-nav a[aria-current="page"] { color: var(--text); background: rgba(168,85,247,0.14); }

.header-spacer { flex: 1; }

/* ---------- Header live search ---------- */
.search-wrap { position: relative; width: min(360px, 34vw); flex-shrink: 1; }
.search-box { position: relative; }
.search-box input {
  width: 100%;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--text);
  font-size: 0.92rem;
  padding: 0.6rem 2.6rem 0.6rem 2.5rem;
  outline: none;
  transition: border-color 0.18s, box-shadow 0.18s;
}
.search-box input::placeholder { color: var(--faint); }
.search-box input:focus {
  border-color: var(--purple);
  box-shadow: 0 0 0 3px rgba(168, 85, 247, 0.22);
}
.search-icon {
  position: absolute; left: 0.85rem; top: 50%; transform: translateY(-50%);
  width: 17px; height: 17px; color: var(--faint); pointer-events: none;
}
.search-kbd {
  position: absolute; right: 0.7rem; top: 50%; transform: translateY(-50%);
  font-size: 0.68rem; color: var(--faint);
  border: 1px solid var(--border); border-radius: 6px; padding: 0.1rem 0.4rem;
  background: var(--bg-2); pointer-events: none; font-family: var(--mono);
}
.search-results {
  position: absolute; top: calc(100% + 10px); left: 0; right: 0;
  background: var(--card-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  max-height: 380px; overflow-y: auto;
  display: none;
}
.search-results.open { display: block; }
.search-results ul { list-style: none; }
.search-result a {
  display: flex; gap: 0.75rem; align-items: flex-start;
  padding: 0.7rem 0.9rem; color: var(--text);
  border-bottom: 1px solid var(--border-soft);
}
.search-result:last-child a { border-bottom: none; }
.search-result a:hover, .search-result a.active { background: rgba(168, 85, 247, 0.12); text-decoration: none; }
.search-result .sr-name { font-weight: 700; font-size: 0.92rem; line-height: 1.35; }
.search-result .sr-name mark { background: rgba(34,211,238,0.25); color: var(--cyan); border-radius: 3px; padding: 0 1px; }
.search-result .sr-desc { font-size: 0.78rem; color: var(--muted); line-height: 1.4; margin-top: 2px;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.sr-badge {
  flex-shrink: 0; font-size: 0.66rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em;
  color: var(--cyan); border: 1px solid rgba(34,211,238,0.35); border-radius: 999px;
  padding: 0.12rem 0.5rem; margin-top: 2px; background: rgba(34,211,238,0.07);
}
.sr-badge.page { color: var(--purple); border-color: rgba(168,85,247,0.4); background: rgba(168,85,247,0.08); }
.search-empty { padding: 1rem; color: var(--muted); font-size: 0.88rem; text-align: center; }
.search-hint { padding: 0.55rem 0.9rem; font-size: 0.72rem; color: var(--faint); border-top: 1px solid var(--border-soft); background: var(--bg-2); }

.search-toggle { display: none; }

/* Mobile nav toggle */
.nav-toggle {
  display: none;
  background: var(--card); border: 1px solid var(--border); border-radius: 9px;
  color: var(--text); width: 42px; height: 42px; cursor: pointer; flex-shrink: 0;
}
.nav-toggle svg { width: 20px; height: 20px; }

/* ---------- Hero ---------- */
.hero { padding: 4.5rem 0 3rem; text-align: center; position: relative; }
.hero-kicker {
  display: inline-block; font-size: 0.78rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--cyan); border: 1px solid rgba(34,211,238,0.3); border-radius: 999px;
  padding: 0.35rem 1rem; margin-bottom: 1.2rem; background: rgba(34,211,238,0.06);
}
.hero h1 { font-size: clamp(2.1rem, 5.4vw, 3.6rem); line-height: 1.12; letter-spacing: -0.03em; font-weight: 800; }
.hero h1 .grad { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero p.lead { color: var(--muted); font-size: 1.12rem; max-width: 640px; margin: 1.1rem auto 0; }
.hero-cta { display: flex; gap: 0.8rem; justify-content: center; margin-top: 1.8rem; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
  font-weight: 700; font-size: 0.98rem; border-radius: 12px; padding: 0.8rem 1.6rem;
  border: 1px solid transparent; cursor: pointer; transition: transform 0.15s, box-shadow 0.15s, background 0.15s;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-primary { background: var(--grad); color: #fff; box-shadow: 0 10px 28px rgba(168,85,247,0.35); }
.btn-ghost { background: var(--card); color: var(--text); border-color: var(--border); }
.btn-ghost:hover { border-color: var(--purple); }
.btn-sm { padding: 0.5rem 1rem; font-size: 0.86rem; border-radius: 9px; }
.hero-stats { display: flex; gap: 2.2rem; justify-content: center; margin-top: 2.4rem; flex-wrap: wrap; }
.stat { text-align: center; }
.stat b { display: block; font-size: 1.7rem; font-weight: 800; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.stat span { font-size: 0.82rem; color: var(--muted); }

/* ---------- Sections / cards ---------- */
.section { padding: 3rem 0; }
.section-head { margin-bottom: 1.6rem; }
.section-head h2 { font-size: 1.7rem; letter-spacing: -0.02em; font-weight: 800; }
.section-head p { color: var(--muted); margin-top: 0.3rem; }
.cat-block { margin-bottom: 2.6rem; }
.cat-title { display: flex; align-items: center; gap: 0.7rem; margin-bottom: 1.1rem; }
.cat-title h2, .cat-title h3 { font-size: 1.25rem; font-weight: 800; letter-spacing: -0.01em; }
.cat-count { font-size: 0.75rem; font-weight: 700; color: var(--cyan); background: rgba(34,211,238,0.08);
  border: 1px solid rgba(34,211,238,0.25); padding: 0.15rem 0.6rem; border-radius: 999px; }
.tools-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 1rem; }
.tool-card {
  background: var(--card); border: 1px solid var(--border-soft); border-radius: var(--radius);
  padding: 1.15rem 1.2rem; display: flex; flex-direction: column; gap: 0.45rem;
  transition: transform 0.16s, border-color 0.16s, box-shadow 0.16s;
}
.tool-card:hover { transform: translateY(-3px); border-color: rgba(168,85,247,0.45); box-shadow: var(--shadow); text-decoration: none; }
.tool-card h3 { font-size: 1.02rem; font-weight: 700; color: var(--text); line-height: 1.35; }
.tool-card p { font-size: 0.85rem; color: var(--muted); line-height: 1.5; flex: 1; }
.tool-card .go { font-size: 0.83rem; font-weight: 700; color: var(--cyan); }
.feature-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 1rem; }
.feature { background: var(--card); border: 1px solid var(--border-soft); border-radius: var(--radius); padding: 1.4rem; }
.feature h3 { font-size: 1.05rem; margin-bottom: 0.4rem; }
.feature p { color: var(--muted); font-size: 0.9rem; }

/* ---------- Tool page ---------- */
.crumbs { font-size: 0.83rem; color: var(--faint); padding: 1.4rem 0 0; }
.crumbs a { color: var(--muted); }
.crumbs a:hover { color: var(--cyan); }
.crumbs [aria-current] { color: var(--text); }
.tool-hero { padding: 1.2rem 0 1.6rem; }
.tool-hero h1 { font-size: clamp(1.7rem, 4vw, 2.5rem); letter-spacing: -0.02em; font-weight: 800; line-height: 1.2; }
.tool-hero h1 .grad { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.tool-hero .lede { color: var(--muted); font-size: 1.05rem; max-width: 720px; margin-top: 0.7rem; }

.tool-shell {
  background: var(--card); border: 1px solid var(--border); border-radius: 18px;
  padding: clamp(1.1rem, 3vw, 2rem); box-shadow: var(--shadow); margin-bottom: 2.2rem;
}
.tool-shell h2.tool-ui-title { font-size: 1.05rem; margin-bottom: 1rem; color: var(--text); }

.prose { max-width: 780px; }
.prose h2 { font-size: 1.45rem; margin: 2.2rem 0 0.8rem; letter-spacing: -0.01em; font-weight: 800; }
.prose h3 { font-size: 1.1rem; margin: 1.4rem 0 0.5rem; font-weight: 700; }
.prose p { color: var(--muted); margin-bottom: 0.9rem; }
.prose ul, .prose ol { color: var(--muted); margin: 0 0 1rem 1.3rem; }
.prose li { margin-bottom: 0.45rem; }
.prose li::marker { color: var(--purple); }
.prose code { font-family: var(--mono); font-size: 0.86em; background: var(--bg-2); border: 1px solid var(--border-soft);
  padding: 0.12em 0.4em; border-radius: 6px; color: var(--cyan); }
.steps { counter-reset: step; list-style: none; margin-left: 0 !important; }
.steps li { counter-increment: step; position: relative; padding-left: 2.6rem; margin-bottom: 0.9rem; }
.steps li::before {
  content: counter(step); position: absolute; left: 0; top: 0.1rem;
  width: 1.8rem; height: 1.8rem; border-radius: 50%;
  background: var(--grad); color: #fff; font-weight: 800; font-size: 0.85rem;
  display: grid; place-items: center;
}

.faq { margin-top: 1rem; }
.faq details { background: var(--card); border: 1px solid var(--border-soft); border-radius: 12px; margin-bottom: 0.7rem; overflow: hidden; }
.faq summary { cursor: pointer; padding: 1rem 1.2rem; font-weight: 700; font-size: 0.98rem; list-style: none; display: flex; justify-content: space-between; gap: 1rem; align-items: center; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-size: 1.3rem; color: var(--purple); font-weight: 800; flex-shrink: 0; }
.faq details[open] summary::after { content: "–"; }
.faq details .faq-a { padding: 0 1.2rem 1.1rem; color: var(--muted); font-size: 0.94rem; }

.related-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1rem; margin-top: 1rem; }

/* ---------- Tool UI primitives ---------- */
.t-row { display: flex; gap: 0.7rem; flex-wrap: wrap; align-items: end; margin-bottom: 1rem; }
.t-field { display: flex; flex-direction: column; gap: 0.35rem; flex: 1 1 160px; min-width: 140px; }
.t-field label { font-size: 0.78rem; font-weight: 700; color: var(--muted); text-transform: uppercase; letter-spacing: 0.06em; }
.t-input, .t-select, .t-textarea {
  width: 100%; background: var(--bg-2); border: 1px solid var(--border); color: var(--text);
  border-radius: var(--radius-sm); padding: 0.65rem 0.8rem; font-size: 0.94rem; font-family: inherit; outline: none;
}
.t-textarea { min-height: 130px; resize: vertical; font-family: var(--mono); font-size: 0.85rem; line-height: 1.55; }
.t-input:focus, .t-select:focus, .t-textarea:focus { border-color: var(--purple); box-shadow: 0 0 0 3px rgba(168,85,247,0.18); }
.t-select { appearance: none; }
input[type="range"].t-range { width: 100%; accent-color: var(--purple); }
input[type="color"].t-color { width: 52px; height: 38px; border: 1px solid var(--border); border-radius: 8px; background: var(--bg-2); padding: 3px; cursor: pointer; }
.t-check { display: flex; align-items: center; gap: 0.5rem; font-size: 0.9rem; color: var(--muted); }
.t-check input { accent-color: var(--purple); width: 17px; height: 17px; }
.t-output {
  background: var(--bg-2); border: 1px solid var(--border); border-radius: var(--radius-sm);
  padding: 0.9rem 1rem; font-family: var(--mono); font-size: 0.86rem; line-height: 1.6;
  white-space: pre-wrap; word-break: break-word; color: var(--text); min-height: 3rem; margin-top: 0.4rem;
}
.t-output:empty::before { content: "Result will appear here…"; color: var(--faint); font-family: var(--font); }
.t-actions { display: flex; gap: 0.6rem; flex-wrap: wrap; margin-top: 0.8rem; }
.t-note { font-size: 0.82rem; color: var(--faint); margin-top: 0.7rem; }
.t-error { color: #ff8f9e; font-size: 0.88rem; margin-top: 0.6rem; font-weight: 600; }
.t-ok { color: #7ef0c1; font-size: 0.88rem; margin-top: 0.6rem; font-weight: 600; }
.t-preview-box { border: 1px dashed var(--border); border-radius: var(--radius-sm); background: var(--bg-2);
  min-height: 120px; display: grid; place-items: center; padding: 1.5rem; margin: 1rem 0; overflow: hidden; }
.t-grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.t-table { width: 100%; border-collapse: collapse; font-size: 0.88rem; margin-top: 0.8rem; }
.t-table th, .t-table td { border: 1px solid var(--border-soft); padding: 0.55rem 0.7rem; text-align: left; }
.t-table th { background: var(--bg-2); color: var(--muted); font-size: 0.76rem; text-transform: uppercase; letter-spacing: 0.05em; }
.drop-zone { border: 2px dashed var(--border); border-radius: var(--radius); padding: 2rem 1rem; text-align: center;
  color: var(--muted); cursor: pointer; transition: border-color 0.15s, background 0.15s; margin-bottom: 1rem; }
.drop-zone:hover, .drop-zone.drag { border-color: var(--purple); background: rgba(168,85,247,0.06); }
.qr-grid, .emoji-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(52px, 1fr)); gap: 0.5rem; margin-top: 0.8rem; }
.emoji-cell { font-size: 1.7rem; background: var(--bg-2); border: 1px solid var(--border-soft); border-radius: 10px;
  padding: 0.5rem; cursor: pointer; text-align: center; transition: transform 0.12s, border-color 0.12s; }
.emoji-cell:hover { transform: scale(1.12); border-color: var(--cyan); }
.cursor-cell { padding: 0.8rem; background: var(--bg-2); border: 1px solid var(--border-soft); border-radius: 10px;
  font-size: 0.8rem; color: var(--muted); text-align: center; }
.diff-del { background: rgba(255, 90, 110, 0.14); color: #ff9aa8; }
.diff-add { background: rgba(60, 220, 150, 0.13); color: #8df0bd; }
.diff-eq { color: var(--muted); }

/* ---------- Ad slots ---------- */
.ad-slot { margin: 1.8rem auto; max-width: 100%; text-align: center; }
.ad-slot[hidden] { display: none; }
.ad-label { display: block; font-size: 0.66rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--faint); margin-bottom: 0.35rem; }
.ad-slot.ad-preview { border: 2px dashed var(--border); border-radius: var(--radius); padding: 1.6rem 1rem; color: var(--faint); background: var(--card); }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--border-soft); background: var(--bg-2); margin-top: 3.5rem; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 2rem; padding: 3rem 0 2rem; }
.footer-brand p { color: var(--muted); font-size: 0.9rem; margin: 0.8rem 0 1rem; max-width: 320px; }
.footer-contact { display: flex; gap: 0.7rem; }
.footer-contact a { display: inline-flex; align-items: center; gap: 0.45rem; font-size: 0.85rem; font-weight: 600;
  color: var(--muted); border: 1px solid var(--border); border-radius: 10px; padding: 0.5rem 0.85rem; }
.footer-contact a:hover { color: var(--text); border-color: var(--purple); text-decoration: none; }
.footer-col h4 { font-size: 0.82rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--faint); margin-bottom: 0.9rem; }
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 0.5rem; }
.footer-col a { color: var(--muted); font-size: 0.9rem; }
.footer-col a:hover { color: var(--cyan); }
.footer-bottom { border-top: 1px solid var(--border-soft); padding: 1.2rem 0; display: flex; justify-content: space-between;
  gap: 1rem; flex-wrap: wrap; font-size: 0.83rem; color: var(--faint); }

/* ---------- Misc ---------- */
.skip-link { position: absolute; left: -999px; top: 0; background: var(--purple); color: #fff; padding: 0.6rem 1rem; z-index: 999; border-radius: 0 0 8px 0; }
.skip-link:focus { left: 0; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }
.contact-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1rem; margin: 1.6rem 0; }
.contact-card { background: var(--card); border: 1px solid var(--border-soft); border-radius: var(--radius); padding: 1.5rem; }
.contact-card h3 { margin-bottom: 0.4rem; }
.contact-card p { color: var(--muted); font-size: 0.92rem; margin-bottom: 0.8rem; }

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .search-wrap { width: 250px; }
  .search-kbd { display: none; }
}
@media (max-width: 860px) {
  :root { --header-h: 62px; }
  .site-nav {
    position: fixed; top: var(--header-h); left: 0; right: 0;
    background: var(--bg-2); border-bottom: 1px solid var(--border);
    flex-direction: column; align-items: stretch; padding: 0.6rem 1rem 1rem; gap: 0.15rem;
    display: none; margin: 0; z-index: 199;
  }
  .site-nav.open { display: flex; }
  .site-nav a { padding: 0.75rem 0.9rem; font-size: 1rem; }
  .nav-dropbtn{width:100%;justify-content:space-between;padding:.75rem .9rem;font-size:1rem}
  .nav-menu{position:static;box-shadow:none;border:0;background:transparent;padding:0 0 .3rem .6rem;max-height:none}
  .nav-menu a{padding:.55rem .75rem}
  .nav-toggle { display: inline-flex; align-items: center; justify-content: center; }

  /* Search collapses to an icon; expands to full-width bar under header */
  .search-wrap { display: none; width: 100%; }
  .site-header.search-open .search-wrap {
    display: block; position: fixed; top: var(--header-h); left: 0; right: 0;
    background: var(--bg-2); border-bottom: 1px solid var(--border);
    padding: 0.7rem 1.2rem; z-index: 199;
  }
  .site-header.search-open .search-results { left: 1.2rem; right: 1.2rem; top: calc(100% - 0.7rem + 12px); }
  .search-toggle {
    display: inline-flex; align-items: center; justify-content: center;
    background: var(--card); border: 1px solid var(--border); border-radius: 9px;
    color: var(--text); width: 42px; height: 42px; cursor: pointer; flex-shrink: 0;
  }
  .search-toggle svg { width: 19px; height: 19px; }
  .site-header.search-open .search-toggle { border-color: var(--purple); color: var(--cyan); }
  .t-grid2 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 1.6rem; }
  .hero { padding: 3rem 0 2.2rem; }
}
@media (max-width: 520px) {
  .tools-grid { grid-template-columns: 1fr; }
  .hero-cta .btn { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}

/* ---- snippet library ---- */
.snippets-list { display: grid; gap: 1.6rem; }
.snippet { background: var(--card); border: 1px solid var(--border-soft); border-radius: 16px; overflow: hidden; }
.snippet-head { padding: 1.2rem 1.4rem 0.4rem; }
.snippet-head h3 { margin: 0 0 0.35rem; font-size: 1.12rem; }
.snippet-head p { margin: 0; color: var(--muted); font-size: 0.93rem; }
.snippet-demo { padding: 1rem 1.4rem 0.4rem; }
.snippet-demo iframe { width: 100%; border: 1px solid var(--border-soft); border-radius: 12px; background: #0d0d17; display: block; }
.snippet-code { margin: 0.8rem 1.4rem 1.3rem; border: 1px solid var(--border-soft); border-radius: 12px; overflow: hidden; background: #0a0a12; }
.snippet-code summary { cursor: pointer; padding: 0.8rem 1.1rem; font-weight: 700; font-size: 0.92rem; list-style: none; display: flex; justify-content: space-between; align-items: center; }
.snippet-code summary::-webkit-details-marker { display: none; }
.snippet-code summary::after { content: "+"; font-size: 1.25rem; color: var(--purple); font-weight: 800; }
.snippet-code[open] summary::after { content: "–"; }
.code-block { border-top: 1px solid var(--border-soft); }
.code-bar { display: flex; justify-content: space-between; align-items: center; padding: 0.5rem 1rem; background: rgba(255,255,255,0.02); }
.code-bar span { font-size: 0.75rem; font-weight: 800; letter-spacing: 0.08em; text-transform: uppercase; color: var(--cyan); }
.copy-btn { background: var(--purple); color: #fff; border: none; border-radius: 8px; padding: 0.35rem 0.85rem; font-size: 0.8rem; font-weight: 700; cursor: pointer; }
.copy-btn:hover { filter: brightness(1.15); }
.code-block pre { margin: 0; padding: 1rem 1.1rem; overflow-x: auto; font-family: var(--mono); font-size: 0.82rem; line-height: 1.6; color: #d7f9ff; max-height: 420px; overflow-y: auto; }
.code-block pre code { font-family: inherit; }
@media (max-width: 520px) {
  .snippet-head, .snippet-demo { padding-left: 1rem; padding-right: 1rem; }
  .snippet-code { margin-left: 1rem; margin-right: 1rem; }
}

/* ---- brand logo ---- */
.brand-logo { width: 34px; height: 34px; display: block; flex-shrink: 0; }

/* Back button (tool/snippet pages) */
.back-btn{display:inline-flex;align-items:center;gap:6px;margin:16px 0 2px;padding:8px 16px;font:inherit;font-weight:600;font-size:14px;color:#334155;background:#f1f5f9;border:1px solid #e2e8f0;border-radius:999px;cursor:pointer;transition:background .15s ease,transform .15s ease}
.back-btn:hover{background:#e2e8f0;transform:translateX(-2px)}
.back-btn:active{transform:translateX(0) scale(.97)}

/* Tool icons (flat) */
.tool-ic{display:inline-flex;align-items:center;justify-content:center;width:46px;height:46px;border-radius:13px;background:#ede9fe;color:#6d28d9;margin-bottom:12px;flex:none}
.tool-ic svg{width:24px;height:24px}
.tool-card{display:flex;flex-direction:column;align-items:flex-start}
.tool-hero .tool-ic{width:56px;height:56px;border-radius:16px;margin-bottom:14px}
.tool-hero .tool-ic svg{width:30px;height:30px}

/* PDF Tools nav dropdown */
.nav-drop{position:relative}
.nav-dropbtn{display:inline-flex;align-items:center;gap:.3rem;background:none;border:0;cursor:pointer;
  color:var(--muted);font-weight:600;font-size:.95rem;padding:.5rem .8rem;border-radius:8px;white-space:nowrap;font-family:inherit}
.nav-dropbtn:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav-dropbtn svg{width:14px;height:14px;transition:transform .15s}
.nav-drop.open .nav-dropbtn{color:var(--text);background:var(--hover-bg)}
.nav-drop.open .nav-dropbtn svg{transform:rotate(180deg)}
.nav-menu{position:absolute;top:calc(100% + 8px);left:0;min-width:235px;max-height:min(70vh,480px);overflow:auto;
  background:var(--bg-2);border:1px solid var(--border);border-radius:12px;padding:.35rem;
  box-shadow:0 18px 40px rgba(0,0,0,.4);display:none;z-index:300}
.nav-drop.open .nav-menu{display:block}
@media (hover:hover){.nav-drop:hover .nav-menu{display:block}}
.nav-menu a{display:block;padding:.5rem .75rem;border-radius:8px;font-size:.88rem;color:var(--muted);font-weight:500;white-space:nowrap}
.nav-menu a:hover{color:var(--text);background:var(--hover-bg);text-decoration:none}
.nav-menu .nav-sep{border-top:1px solid var(--border-soft);margin:.3rem .2rem}
.nav-menu .nav-cap{font-size:.72rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);opacity:.7;padding:.45rem .75rem .15rem}


/* Converter direction switch */
.t-switch{display:inline-flex;background:var(--bg-2);border:1px solid var(--border-soft);border-radius:12px;padding:4px;gap:4px;margin-bottom:1.1rem}
.t-switch button{border:0;background:transparent;color:var(--muted);font-weight:700;font-size:.9rem;padding:.55rem 1.15rem;border-radius:9px;cursor:pointer;font-family:inherit}
.t-switch button.on{background:#7c3aed;color:#fff}
.t-switch button:not(.on):hover{color:var(--text)}

/* Premium custom scrollbar — site-wide */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-corner { background: transparent; }
::-webkit-scrollbar-thumb {
  background: var(--purple-deep);
  background-clip: padding-box;
  border: 2px solid transparent;
  border-radius: 8px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--purple);
  background-clip: padding-box;
  border: 2px solid transparent;
  border-radius: 8px;
}
::-webkit-scrollbar-thumb:active { background: var(--purple); background-clip: padding-box; border: 2px solid transparent; }
html { scrollbar-width: thin; scrollbar-color: var(--purple-deep) transparent; }

/* Wide two-column dropdown (Converters menu) */
.nav-group { display: flex; flex-direction: column; min-width: 0; }
@media (min-width: 861px) {
  .nav-menu.nav-cols { min-width: 540px; max-height: min(76vh, 540px); }
  .nav-drop.open .nav-menu.nav-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 0 .4rem; align-content: start; }
}
@media (hover:hover) and (min-width: 861px) {
  .nav-drop:hover .nav-menu.nav-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 0 .4rem; align-content: start; }
}

/* ---- Report issue / request update box (tool pages) ---- */
.report-box {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.4rem 1.5rem;
  margin: 2.2rem 0;
}
.report-box h2 { margin: 0 0 .3rem; font-size: 1.2rem; }
.report-box > p { margin: 0 0 1.1rem; color: var(--muted); font-size: .95rem; }
.report-row { margin-bottom: .95rem; }
.report-row label { display: block; font-weight: 600; margin-bottom: .4rem; font-size: .92rem; }
.report-row select, .report-row textarea {
  width: 100%; padding: .65rem .75rem; font: inherit; color: var(--text);
  background: var(--bg-2); border: 1px solid var(--border); border-radius: 10px;
}
.report-row select:focus, .report-row textarea:focus {
  outline: none; border-color: var(--purple); box-shadow: 0 0 0 3px rgba(168,85,247,.18);
}
.report-row textarea { resize: vertical; min-height: 76px; }
.report-actions { display: flex; gap: .7rem; flex-wrap: wrap; margin-top: 1.05rem; }
.report-note { margin-top: .8rem; font-size: .83rem; color: var(--faint); }

/* ---- Report box: 1-click expandable, sits right under the tool ---- */
.report-box { padding: 1rem 1.25rem; margin: 1.4rem 0; }
.report-toggle {
  width: 100%; display: flex; align-items: center; justify-content: space-between;
  gap: .8rem; background: none; border: none; padding: 0; cursor: pointer;
  color: var(--text); font: inherit; text-align: left;
}
.report-toggle-title { font-size: 1.05rem; font-weight: 700; }
.report-chevron { transition: transform .2s ease; color: var(--purple); font-size: 1.25rem; line-height: 1; }
.report-box.report-open .report-chevron { transform: rotate(180deg); }
.report-body { margin-top: 1rem; }
.report-sub { margin: 0 0 1rem; color: var(--muted); font-size: .95rem; }

/* ---- Theme toggle (light default, dark optional) ---- */
.theme-toggle {
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--card); border: 1px solid var(--border); border-radius: 9px;
  color: var(--text); width: 42px; height: 42px; cursor: pointer; flex-shrink: 0;
  transition: border-color .15s ease, color .15s ease;
}
.theme-toggle:hover { border-color: var(--purple); color: var(--purple); }
.theme-toggle svg { width: 19px; height: 19px; }
.theme-toggle .ic-sun { display: none; }
[data-theme="dark"] .theme-toggle .ic-sun { display: block; }
[data-theme="dark"] .theme-toggle .ic-moon { display: none; }

/* ---- Homepage: iLovePDF-style category button grids ---- */
.pdf-cat { margin-bottom: 2.4rem; }
.pdf-cat > h3 { display: flex; align-items: center; gap: .65rem; font-size: 1.2rem; margin: 0 0 .3rem; }
.pdf-cat-ic { display: inline-grid; place-items: center; width: 36px; height: 36px; border-radius: 11px;
  background: rgba(124, 58, 237, 0.10); color: var(--purple); flex-shrink: 0; }
.pdf-cat-ic svg { width: 19px; height: 19px; }
[data-theme="dark"] .pdf-cat-ic { background: rgba(168, 85, 247, 0.14); }
.pdf-cat-sub { color: var(--muted); font-size: .93rem; margin: 0 0 1rem; }
.tool-btn-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(168px, 1fr)); gap: .65rem; }
a.tool-btn { display: flex; align-items: center; gap: .65rem; padding: .8rem .95rem;
  background: var(--card); border: 1px solid var(--border); border-radius: 12px;
  color: var(--text); font-weight: 600; font-size: .92rem; text-decoration: none;
  transition: border-color .15s ease, transform .15s ease, box-shadow .15s ease; }
a.tool-btn:hover { border-color: var(--purple); transform: translateY(-2px); box-shadow: var(--shadow); text-decoration: none; }
.tool-btn svg { width: 22px; height: 22px; color: var(--purple); flex-shrink: 0; }
@media (max-width: 560px) { .tool-btn-grid { grid-template-columns: repeat(2, 1fr); } }

/* ---- Selected-file indicator inside drop zones (mobile-first) ---- */
.file-ind { display: flex; flex-direction: column; gap: .5rem; margin-bottom: .9rem; text-align: left; }
.file-ind-row { display: flex; align-items: center; gap: .65rem; min-width: 0;
  background: var(--card); border: 1px solid var(--border); border-radius: .8rem;
  padding: .65rem .8rem; box-shadow: 0 1px 3px rgba(0,0,0,.06); }
.file-badge { flex-shrink: 0; color: #fff; font-size: .72rem; font-weight: 800; letter-spacing: .04em;
  padding: .34rem .5rem; border-radius: .45rem; line-height: 1; }
.file-ind-name { font-weight: 600; font-size: .92rem; min-width: 0; overflow: hidden;
  text-overflow: ellipsis; white-space: nowrap; }
.file-del { flex-shrink: 0; margin-left: auto; width: 32px; height: 32px; border-radius: 50%;
  border: 1px solid var(--border); background: transparent; color: var(--muted);
  font-size: 1.15rem; line-height: 1; cursor: pointer; padding: 0;
  display: inline-flex; align-items: center; justify-content: center; }
.file-del:hover { color: #e5484d; border-color: rgba(229,72,77,.5); background: rgba(229,72,77,.1); }
.file-ind-more { font-size: .8rem; color: var(--muted); font-weight: 600; }
.file-ind-hint { font-size: .78rem; color: var(--muted); }

/* ---- Slim hero + category filter pills (homepage) ---- */
.hero-slim { padding: 2.6rem 0 1.4rem; }
.hero-slim h1 { font-size: clamp(1.65rem, 4.5vw, 2.5rem); letter-spacing: -0.02em; }
.hero-slim .lead { margin-top: .7rem; font-size: 1.02rem; }
.cat-pills { display: flex; gap: .55rem; overflow-x: auto; padding: .9rem .1rem 1.1rem;
  scrollbar-width: none; -webkit-overflow-scrolling: touch; }
.cat-pills::-webkit-scrollbar { display: none; }
.pill { flex-shrink: 0; padding: .55rem 1.15rem; border-radius: 999px;
  border: 1px solid var(--border); background: var(--card); color: var(--muted);
  font: inherit; font-weight: 600; font-size: .9rem; cursor: pointer; white-space: nowrap;
  transition: border-color .15s ease, color .15s ease, background .15s ease; }
.pill:hover { border-color: var(--purple); color: var(--text); }
.pill.on { background: var(--text); border-color: var(--text); color: var(--bg); }
.section-tight { padding-top: .4rem; }