/* RGS Tools: guides, feature pages and glossary. Same look as the sales page. */
:root {
  --primary: #0B5FFF; --primary-dark: #083ECB; --accent: #00C2B8; --ink: #0A1A2F; --gray: #5A6B85;
  --gray-light: #E4EAF6; --paper: #F6F9FF; --white: #fff; --radius: 14px;
  --shadow: 0 24px 60px -24px rgba(10, 26, 47, .28); --shadow-sm: 0 8px 24px -12px rgba(10, 26, 47, .18);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; }
body { background: var(--white); color: var(--ink); font: 16px/1.65 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
.wrap { max-width: 1160px; margin: 0 auto; padding: 0 24px; }
.wrap.narrow { max-width: 820px; }
.spacer { flex: 1; }

nav.top { position: sticky; top: 0; z-index: 20; background: rgba(255,255,255,.92); backdrop-filter: saturate(160%) blur(10px); border-bottom: 1px solid var(--gray-light); }
nav.top .wrap { display: flex; align-items: center; gap: 14px; height: 68px; }
.brand { display: flex; align-items: center; gap: 10px; }
.brand img { width: 32px; height: 34px; object-fit: contain; }
.brand b { font-weight: 800; font-size: 16px; letter-spacing: -.01em; line-height: 1.1; display: block; }
.brand small { display: block; font-size: 11.5px; color: var(--gray); font-weight: 500; }
.brand .t { color: var(--primary); }
.nav-link { white-space: nowrap; font-size: 14px; font-weight: 600; color: var(--gray); padding: 8px 10px; }
.nav-link:hover { color: var(--ink); }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border-radius: 999px; padding: 12px 22px; font-weight: 700; font-size: 15px; border: 1.5px solid transparent; transition: background .15s, transform .1s, border-color .15s; cursor: pointer; white-space: nowrap; }
.btn.primary { background: var(--primary); color: #fff; } .btn.primary:hover { background: var(--primary-dark); transform: translateY(-1px); }
.btn.ghost { border-color: var(--gray-light); background: var(--white); } .btn.ghost:hover { border-color: var(--gray); }
.btn.light { background: #fff; color: var(--ink); }
.btn.sm { padding: 9px 16px; font-size: 14px; }

.gl { display: inline-grid; place-items: center; color: #fff; border-radius: 11px; width: 42px; height: 42px; flex: none; box-shadow: inset 0 .5px 0 rgba(255,255,255,.4), 0 6px 14px -6px rgba(10,26,47,.4); }
.gl svg { width: 21px; height: 21px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.gl.lg { width: 60px; height: 60px; border-radius: 16px; } .gl.lg svg { width: 30px; height: 30px; }
.gl.sm { width: 36px; height: 36px; border-radius: 10px; } .gl.sm svg { width: 18px; height: 18px; }
.gl.xs { width: 18px; height: 18px; border-radius: 5px; box-shadow: none; } .gl.xs svg { width: 11px; height: 11px; stroke-width: 2.4; }

.page-hero { background: radial-gradient(1000px 420px at 90% -20%, rgba(11,95,255,.09), transparent 60%), radial-gradient(700px 360px at -10% 0%, rgba(0,194,184,.08), transparent 60%), var(--paper); border-bottom: 1px solid var(--gray-light); padding: 30px 0 40px; margin-bottom: 40px; }
.crumbs { display: flex; flex-wrap: wrap; gap: 6px; font-size: 13px; color: var(--gray); margin-bottom: 18px; }
.crumbs a:hover { color: var(--primary); } .crumbs span[aria-current] { color: var(--ink); font-weight: 600; }
.h1 { font-size: clamp(30px, 4.2vw, 46px); line-height: 1.08; font-weight: 900; letter-spacing: -.03em; margin: 6px 0 14px; max-width: 860px; }
.lede { font-size: 18px; color: var(--gray); max-width: 720px; }
.byline { margin-top: 14px; font-size: 13.5px; color: var(--gray); }
.kicker { font-size: 12.5px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--primary); }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.chip { display: inline-flex; align-items: center; gap: 6px; font-size: 12.5px; font-weight: 600; padding: 5px 12px; border-radius: 999px; background: var(--white); border: 1px solid var(--gray-light); color: var(--ink); }
a.chip:hover { border-color: var(--primary); color: var(--primary); }
.art-hero .chips { margin: 0 0 6px; }

.feat-hero .fh { display: flex; gap: 22px; align-items: flex-start; }
.cta-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }

.art-grid { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 56px; align-items: start; }
.side { position: sticky; top: 92px; display: grid; gap: 18px; }
.toc { border-left: 2px solid var(--gray-light); padding-left: 16px; display: grid; gap: 7px; font-size: 13.5px; }
.toc b { font-size: 12px; text-transform: uppercase; letter-spacing: .08em; color: var(--gray); margin-bottom: 4px; }
.toc a { color: var(--gray); line-height: 1.35; } .toc a:hover { color: var(--primary); }

.prose { font-size: 17px; line-height: 1.75; color: #22324A; max-width: 740px; min-width: 0; overflow-wrap: break-word; }
.prose > * + * { margin-top: 1.1em; }
.prose h2 { font-size: 27px; line-height: 1.2; font-weight: 800; letter-spacing: -.02em; color: var(--ink); margin-top: 1.9em; }
.prose h3 { font-size: 20px; line-height: 1.3; font-weight: 750; color: var(--ink); margin-top: 1.5em; }
.prose a { color: var(--primary); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 3px; }
.prose a.auto { text-decoration-style: dotted; }
.prose ul, .prose ol { padding-left: 1.4em; } .prose li + li { margin-top: .4em; }
.prose code { font: 500 .86em ui-monospace, SFMono-Regular, Menlo, monospace; background: var(--paper); border: 1px solid var(--gray-light); padding: 1px 6px; border-radius: 6px; }
.prose pre { background: #0F1B2D; color: #E6EDF7; border-radius: 12px; padding: 16px 18px; overflow-x: auto; font-size: 14px; }
.prose pre code { background: none; border: 0; padding: 0; color: inherit; }
.prose blockquote { border-left: 3px solid var(--accent); padding: 4px 0 4px 18px; color: var(--gray); }
.prose .tbl { overflow-x: auto; }
.prose table { width: 100%; border-collapse: collapse; font-size: 15px; }
.prose th, .prose td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--gray-light); vertical-align: top; }
.prose th { font-size: 13px; text-transform: uppercase; letter-spacing: .05em; color: var(--gray); }
.prose img { max-width: 100%; border-radius: 12px; }
.prose strong { color: var(--ink); }

.faq { margin-top: 2.6em; }
.faq h2 { margin-bottom: .6em; }
.faq details { border-bottom: 1px solid var(--gray-light); padding: 14px 0; }
.faq summary { cursor: pointer; font-weight: 700; color: var(--ink); list-style: none; display: flex; justify-content: space-between; gap: 16px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--primary); font-weight: 800; }
.faq details[open] summary::after { content: "–"; }
.faq p { margin-top: 8px; color: var(--gray); font-size: 16px; }

.cta-card { background: var(--white); border: 1px solid var(--gray-light); border-radius: 18px; padding: 20px; box-shadow: var(--shadow-sm); display: grid; gap: 12px; }
.cta-card .row { display: flex; gap: 12px; align-items: center; }
.cta-card b { display: block; font-size: 16px; font-weight: 800; } .cta-card .row div span { font-size: 13px; color: var(--gray); }
.cta-card p { font-size: 14px; color: var(--gray); line-height: 1.5; }
.cta-card .sub { font-size: 13.5px; font-weight: 600; color: var(--gray); text-align: center; } .cta-card .sub:hover { color: var(--primary); }

.sec-h { font-size: 24px; font-weight: 850; letter-spacing: -.02em; margin: 56px 0 18px; }
.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.grid2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.card { background: var(--white); border: 1px solid var(--gray-light); border-radius: var(--radius); padding: 22px; box-shadow: var(--shadow-sm); display: flex; flex-direction: column; gap: 8px; transition: transform .15s, border-color .15s; }
.card:hover { transform: translateY(-2px); border-color: #C9D6EE; }
.card h3 { font-size: 17px; font-weight: 800; letter-spacing: -.01em; line-height: 1.3; }
.card p { color: var(--gray); font-size: 14.5px; line-height: 1.55; flex: 1; }
.card .meta { font-size: 12.5px; color: var(--gray); font-weight: 600; }
.card.post .chip { align-self: flex-start; text-transform: none; }
.card.feat .gl { margin-bottom: 4px; }

.tool-sec { margin-bottom: 52px; scroll-margin-top: 90px; }
.tool-head { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; margin-bottom: 18px; }
.tool-head h2 { font-size: 26px; font-weight: 850; letter-spacing: -.02em; } .tool-head p { color: var(--gray); }
.tool-buy { margin-left: auto; display: flex; align-items: center; gap: 12px; }
.tool-buy b { font-size: 22px; font-weight: 900; } .tool-buy small { font-size: 13px; color: var(--gray); font-weight: 500; }
.tool-buy .sub { font-size: 13.5px; font-weight: 600; color: var(--gray); } .tool-buy .sub:hover { color: var(--primary); }

.gloss-sec { margin-bottom: 34px; scroll-margin-top: 90px; }
.gloss-sec h2 { font-size: 22px; font-weight: 900; color: var(--primary); margin-bottom: 12px; }

.bundle-band { margin: 64px 0 20px; background: var(--ink); color: #fff; border-radius: 22px; padding: 34px 38px; display: flex; align-items: center; gap: 28px; flex-wrap: wrap;
  background-image: radial-gradient(600px 300px at 100% 0%, rgba(11,95,255,.35), transparent 60%), radial-gradient(500px 260px at 0% 100%, rgba(0,194,184,.25), transparent 60%); }
.bundle-band div { flex: 1; min-width: 260px; } .bundle-band b { font-size: 21px; font-weight: 850; letter-spacing: -.01em; }
.bundle-band p { color: #C3CEE0; margin-top: 6px; } .bundle-band s { color: #9FB0CB; }

.draft-bar { background: #FF9F0A; color: #1C1C1E; text-align: center; font-weight: 600; font-size: 14px; padding: 8px; }

footer.foot { margin-top: 60px; padding: 46px 0 50px; border-top: 1px solid var(--gray-light); background: var(--paper); font-size: 14px; color: var(--gray); }
footer .cols { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
footer .cols div { display: flex; flex-direction: column; gap: 7px; }
footer .cols b { color: var(--ink); font-size: 13px; text-transform: uppercase; letter-spacing: .08em; margin-bottom: 4px; }
footer a:hover { color: var(--primary); }
footer .fine { margin-top: 30px; font-size: 12.5px; }

@media (max-width: 1000px) { .art-grid { grid-template-columns: minmax(0, 1fr); gap: 30px; } .side { position: static; } .toc { display: none; } .grid3 { grid-template-columns: 1fr 1fr; } }
@media (max-width: 640px) {
  .hide-sm { display: none !important; }
  .grid3, .grid2 { grid-template-columns: 1fr; }
  footer .cols { grid-template-columns: 1fr 1fr; }
  .feat-hero .fh { flex-direction: column; gap: 14px; }
  .prose { font-size: 16.5px; } .prose h2 { font-size: 23px; }
  .tool-buy { margin-left: 0; width: 100%; }
  .bundle-band { padding: 26px 22px; }
}