/* Software Engineering Unpacked: site styles (home, articles, index) */
:root { --navy: #10213A; --ground: #0E1B2E; --ink: #EAF0F7; --soft: #C9D6E6; --mid: #8FA8C8; --line: #6F8FB8; --amber: #F2A93B; --muted: #8FA2BD; }
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--ground); color: var(--ink); font: 400 18px/1.6 Archivo, "Helvetica Neue", Arial, sans-serif;
  background-image: linear-gradient(rgba(111,143,184,0.08) 1px, transparent 1px), linear-gradient(90deg, rgba(111,143,184,0.08) 1px, transparent 1px);
  background-size: 32px 32px; }
a { color: inherit; }
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 24px; }
.mono { font-family: "JetBrains Mono", monospace; }
.amber { color: var(--amber); }

header { padding: 22px 0; border-bottom: 1px solid rgba(111,143,184,0.25); }
header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.brand svg { width: 40px; height: 40px; flex: none; }
.word { font-weight: 700; font-size: 19px; letter-spacing: -0.01em; line-height: 1.15; }
.word b { font: 500 17px "JetBrains Mono", monospace; color: var(--amber); margin-left: 6px; }
.top-link { font: 500 15px "JetBrains Mono", monospace; color: var(--soft); text-decoration: none; border: 1px solid var(--line); border-radius: 999px; padding: 8px 16px; white-space: nowrap; }
.top-link:hover { border-color: var(--amber); color: var(--ink); }

.hero { padding-top: 88px; padding-bottom: 72px; }
.eyebrow { font: 500 14px "JetBrains Mono", monospace; letter-spacing: 0.1em; text-transform: uppercase; color: var(--amber); }
h1 { font-size: clamp(42px, 7vw, 76px); line-height: 1.02; letter-spacing: -0.025em; margin: 18px 0 22px; font-weight: 800; }
.hero h1 { max-width: 14ch; }
.lead { font-size: clamp(18px, 2.2vw, 22px); color: var(--soft); max-width: 46ch; margin: 0 0 34px; }
.ctas { display: flex; flex-wrap: wrap; gap: 14px; }
.btn { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 700; font-size: 17px; padding: 14px 24px; border-radius: 12px; border: 2px solid var(--line); }
.btn.primary { background: var(--amber); border-color: var(--amber); color: var(--ground); }
.btn:hover { border-color: var(--amber); }
.btn.primary:hover { filter: brightness(1.06); }

section { padding: 56px 0; border-top: 1px solid rgba(111,143,184,0.2); }
h2 { font-size: clamp(28px, 4vw, 40px); letter-spacing: -0.015em; line-height: 1.1; margin: 10px 0 14px; }
.sub { color: var(--soft); max-width: 60ch; margin: 0 0 28px; }

.series { display: grid; grid-template-columns: 1.15fr 1fr; gap: 28px; align-items: start; }
.card { border: 2px solid var(--line); border-radius: 16px; background: rgba(14,27,46,0.92); padding: 24px; }
.card.hot { border-color: var(--amber); }
.card h3 { margin: 6px 0 8px; font-size: 22px; line-height: 1.25; }
.card p { margin: 0; color: var(--soft); font-size: 16px; }
.k { font: 500 13px "JetBrains Mono", monospace; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); }
.video { display: block; text-decoration: none; }
.video img { display: block; width: 100%; height: auto; border-radius: 10px; border: 1px solid rgba(111,143,184,0.35); margin-bottom: 14px; }
.video:hover h3 { color: var(--amber); }
.facts { list-style: none; padding: 0; margin: 18px 0 22px; display: grid; gap: 10px; }
.facts li { display: flex; gap: 12px; align-items: baseline; color: var(--soft); font-size: 16px; }
.facts li::before { content: "▸"; color: var(--amber); }
.link { font: 700 15px "JetBrains Mono", monospace; color: var(--amber); text-decoration: none; }
.link:hover { text-decoration: underline; }

.how { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.how .n { font: 700 14px "JetBrains Mono", monospace; color: var(--amber); }

.topics { display: flex; flex-wrap: wrap; gap: 10px; }
.pill { font: 500 15px "JetBrains Mono", monospace; border: 1px solid var(--line); border-radius: 999px; padding: 8px 16px; color: var(--soft); }

footer { padding: 40px 0 56px; border-top: 1px solid rgba(111,143,184,0.25); color: var(--muted); font-size: 15px; }
footer .wrap { display: flex; flex-wrap: wrap; gap: 14px 32px; justify-content: space-between; }
footer a { color: var(--soft); }

@media (max-width: 760px) {
  .hero { padding-top: 56px; padding-bottom: 48px; }
  .series, .how { grid-template-columns: 1fr; }
  .top-link { display: none; }
}

nav.top { display: flex; align-items: center; gap: 10px; }
nav.top a { font: 500 15px "JetBrains Mono", monospace; color: var(--soft); text-decoration: none; padding: 8px 14px; border-radius: 999px; border: 1px solid transparent; white-space: nowrap; }
nav.top a:hover { border-color: var(--line); color: var(--ink); }
nav.top a.yt { border-color: var(--line); }

/* latest articles block on the home page (markup from seo-studio article.py) */
.latest-head { font-size: 15px; font-family: "JetBrains Mono", monospace; font-weight: 500; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); margin: 0 0 14px; }
ul.latest { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
ul.latest li { border: 2px solid var(--line); border-radius: 16px; padding: 20px 22px; background: rgba(14,27,46,0.92); display: flex; flex-direction: column; gap: 8px; }
ul.latest li:hover { border-color: var(--amber); }
ul.latest a { font-weight: 700; font-size: 19px; line-height: 1.3; color: var(--ink); text-decoration: none; }
ul.latest a:hover { color: var(--amber); }
ul.latest span { color: var(--soft); font-size: 15px; }
.latest-all { margin: 18px 0 0; }
.latest-all a { font: 700 15px "JetBrains Mono", monospace; color: var(--amber); text-decoration: none; }

/* articles: dark theme on top of seo-studio's blog.css */
body .article h1, body .article h2, body .article h3, body .article th { color: var(--ink); }
body .article p, body .article li, body .article td { color: var(--soft); }
body .article a { color: var(--amber); }
body .article .lede { color: var(--soft); }
body .article .crumbs, body .article .byline { color: var(--muted); }
body .article .crumbs a { color: var(--soft); }
body .article th, body .article td { border-bottom-color: rgba(111,143,184,0.35); }
body .article blockquote { background: rgba(16,33,58,0.9); border-left-color: var(--amber); color: var(--soft); }
body .article code { font-family: "JetBrains Mono", monospace; font-size: 0.9em; background: #091221; border: 1px solid rgba(111,143,184,0.35); border-radius: 6px; padding: 1px 6px; color: var(--ink); }
body .article pre { background: #091221; border: 1px solid rgba(111,143,184,0.35); border-radius: 12px; padding: 16px 18px; overflow-x: auto; }
body .article pre code { background: none; border: 0; padding: 0; font-size: 15px; line-height: 1.55; }
body .article .video { display: block; margin: 22px 0; border: 2px solid var(--line); border-radius: 16px; padding: 16px 18px; text-decoration: none; background: rgba(14,27,46,0.92); }
body .article .video:hover { border-color: var(--amber); }
body .bloglist a.card { background: rgba(14,27,46,0.92); border-color: var(--line); }
body .bloglist a.card:hover { border-color: var(--amber); }
body .bloglist .t { color: var(--ink); }
body .bloglist .d, body .bloglist p { color: var(--soft); }
body .faq summary { color: var(--ink); }
@media (max-width: 760px) { .latest { grid-template-columns: 1fr; } nav.top a:not(.yt) { display: none; } }
body .bloglist .m { color: var(--muted); }
body .article .more { border-top-color: rgba(111,143,184,0.35); }
body .appbox { background: rgba(16,33,58,0.95); border: 2px solid var(--amber); }
body .appbox .cta, body .article .cta { background: var(--amber); color: var(--ground); font-weight: 700; padding: 10px 18px; border-radius: 10px; text-decoration: none; }
@media (max-width: 760px) { ul.latest { grid-template-columns: 1fr; } }