/* spfflattening.com — basic, intentionally minimal styling.
   Brand/visual design is applied later. Keep it readable and unopinionated. */

:root {
	--maxw: 860px;
	--ink: #1a1a1a;
	--muted: #555;
	--line: #ddd;
	--accent: #0b5ea8;
	--bg-soft: #f5f7fa;
	--code-bg: #f0f2f5;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
	margin: 0;
	font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
	color: var(--ink);
	line-height: 1.6;
	background: #fff;
}

.container { max-width: var(--maxw); margin: 0 auto; padding: 0 1rem; }

a { color: var(--accent); }
a:hover { text-decoration: underline; }

h1, h2, h3 { line-height: 1.25; }
h1 { font-size: 1.9rem; margin: .5rem 0 1rem; }
h2 { font-size: 1.4rem; margin: 2rem 0 .75rem; }
h3 { font-size: 1.1rem; margin: 1.25rem 0 .5rem; }

code {
	font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
	background: var(--code-bg);
	padding: .1em .35em;
	border-radius: 3px;
	font-size: .92em;
}

pre.code {
	background: var(--code-bg);
	border: 1px solid var(--line);
	border-radius: 6px;
	padding: 1rem;
	overflow-x: auto;
	font-size: .9rem;
	line-height: 1.5;
}
pre.code code { background: none; padding: 0; }

/* Skip link */
.skip-link {
	position: absolute; left: -999px; top: 0;
	background: #fff; padding: .5rem 1rem; z-index: 100;
}
.skip-link:focus { left: 0; }

/* Header */
.site-header { border-bottom: 1px solid var(--line); background: #fff; }
.header-inner { display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; padding-top: .6rem; padding-bottom: .6rem; }
.brand { font-weight: 700; font-size: 1.15rem; text-decoration: none; color: var(--ink); }
.main-nav { display: flex; gap: 1rem; flex-wrap: wrap; margin-left: auto; }
.main-nav a { text-decoration: none; color: var(--ink); font-size: .95rem; }
.main-nav a[aria-current="page"] { font-weight: 700; color: var(--accent); }
.header-cta { margin-left: .5rem; }
.nav-toggle { display: none; margin-left: auto; padding: .4rem .7rem; border: 1px solid var(--line); background: #fff; border-radius: 5px; cursor: pointer; }

/* Buttons */
.btn { display: inline-block; text-decoration: none; border-radius: 6px; padding: .55rem 1rem; font-weight: 600; }
.btn-cta { background: var(--accent); color: #fff; }
.btn-cta:hover { background: #094a86; text-decoration: none; }
.btn-lg { padding: .8rem 1.5rem; font-size: 1.05rem; }
.inline-cta { display: inline-block; font-weight: 700; }

/* Content */
main { padding-bottom: 2rem; }
.content { padding-top: 1rem; }
.lead { font-size: 1.15rem; color: #333; }
.note { background: var(--bg-soft); border-left: 3px solid var(--accent); padding: .75rem 1rem; border-radius: 0 5px 5px 0; }
.breadcrumbs { font-size: .85rem; color: var(--muted); padding-top: .75rem; }
.breadcrumbs a { color: var(--muted); }
.crumb-sep { color: #bbb; }

/* Cards */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1rem; margin: 1rem 0; }
.card { border: 1px solid var(--line); border-radius: 8px; padding: 1rem; background: #fff; }
.card h3 { margin-top: 0; }
.card p { margin-bottom: 0; color: var(--muted); font-size: .95rem; }

/* Tables */
table.data { border-collapse: collapse; width: 100%; margin: 1rem 0; font-size: .95rem; display: block; overflow-x: auto; }
table.data th, table.data td { border: 1px solid var(--line); padding: .5rem .7rem; text-align: left; vertical-align: top; }
table.data th { background: var(--bg-soft); }

/* FAQ */
.faq { margin-top: 2.5rem; border-top: 1px solid var(--line); padding-top: 1rem; }
.faq-item { border: 1px solid var(--line); border-radius: 6px; margin-bottom: .5rem; padding: .25rem .75rem; }
.faq-item summary { cursor: pointer; font-weight: 600; padding: .5rem 0; }
.faq-answer { padding: 0 0 .75rem; color: #333; }

/* Related */
.related { margin-top: 2rem; }
.related ul { padding-left: 1.2rem; }

.post-list { padding-left: 1.2rem; }
.post-list li { margin-bottom: .75rem; }

/* CTA block */
.cta-block { background: var(--bg-soft); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 2rem 0; margin-top: 2rem; text-align: center; }
.cta-block h2 { margin-top: 0; }
.cta-sub { font-size: .85rem; color: var(--muted); margin-top: .75rem; }

/* Footer */
.site-footer { background: #fff; border-top: 1px solid var(--line); margin-top: 2rem; padding-top: 2rem; font-size: .9rem; }
.footer-inner { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 1.5rem; }
.foot-col h3 { font-size: .95rem; margin: 0 0 .5rem; }
.foot-col ul { list-style: none; padding: 0; margin: 0; }
.foot-col li { margin-bottom: .35rem; }
.foot-col a { color: var(--muted); text-decoration: none; }
.foot-col a:hover { color: var(--accent); }
.footer-bottom { border-top: 1px solid var(--line); margin-top: 1.5rem; padding: 1rem 0 2rem; color: var(--muted); font-size: .82rem; }

/* Mobile */
@media (max-width: 720px) {
	.nav-toggle { display: block; }
	.main-nav { display: none; flex-direction: column; width: 100%; margin-left: 0; gap: .5rem; padding: .5rem 0; }
	.main-nav.open { display: flex; }
	.header-cta { margin-left: 0; }
	h1 { font-size: 1.6rem; }
}