/* KafkaBoost site: one stylesheet for the landing and the secondary pages. No framework, no build step, no network. */
:root {
  color-scheme: light dark;
  --bg: #f6f7fb; --bg-2: #ffffff; --panel: #ffffff; --panel-2: #eef0f8; --text: #14171f; --muted: #4b5163;
  --line: #d6d9e6; --accent: #2f55e0; --accent-ink: #ffffff; --accent-soft: #e0e7ff; --green: #0f7a47; --green-soft: #d3f2e1;
  --warn: #7a4d00; --warn-soft: #fff0c8; --shadow: 0 10px 30px rgba(30, 45, 110, .12);
  --hero-glow: radial-gradient(60% 60% at 80% 0%, rgba(47, 85, 224, .16), transparent 70%), radial-gradient(40% 50% at 0% 20%, rgba(15, 160, 100, .10), transparent 70%);
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "Cascadia Mono", Consolas, monospace;
  --r: 16px; --max: 1120px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0a0d14; --bg-2: #0e121b; --panel: #121826; --panel-2: #181f31; --text: #e8eaf3; --muted: #aab0c4;
    --line: #263049; --accent: #7a96ff; --accent-ink: #0a1033; --accent-soft: #1d2a5c; --green: #4fd69a; --green-soft: #0d3523;
    --warn: #f3c35a; --warn-soft: #3d2d05; --shadow: 0 14px 40px rgba(0, 0, 0, .45);
    --hero-glow: radial-gradient(60% 60% at 80% 0%, rgba(90, 120, 255, .22), transparent 70%), radial-gradient(40% 50% at 0% 20%, rgba(52, 211, 153, .12), transparent 70%);
  }
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 76px; }
body { margin: 0; background: var(--bg); color: var(--text); font: 16px/1.65 var(--font); -webkit-font-smoothing: antialiased; }
img { max-width: 100%; height: auto; }
a { color: var(--accent); text-underline-offset: 3px; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; border-radius: 6px; }
code { font-family: var(--mono); font-size: .9em; background: var(--panel-2); padding: 1px 6px; border-radius: 6px; overflow-wrap: anywhere; }
pre { background: var(--panel-2); border: 1px solid var(--line); padding: 14px 16px; border-radius: 12px; overflow: auto; font: 13.5px/1.55 var(--mono); }
pre code { background: none; padding: 0; }
h1, h2, h3 { line-height: 1.2; letter-spacing: -.015em; margin: 0 0 .5em; }
h1 { font-size: clamp(2rem, 5.5vw, 3.4rem); }
h2 { font-size: clamp(1.5rem, 3.4vw, 2.1rem); }
h3 { font-size: 1.1rem; }
p { margin: 0 0 1em; }
.muted { color: var(--muted); }
.wrap { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 20px; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--accent); color: var(--accent-ink); padding: 8px 14px; border-radius: 8px; z-index: 20; }
.skip:focus { left: 8px; }

/* header */
.site-header { position: sticky; top: 0; z-index: 10; background: color-mix(in srgb, var(--bg) 88%, transparent); backdrop-filter: blur(12px); border-bottom: 1px solid var(--line); }
.site-header .wrap { display: flex; align-items: center; gap: 14px; min-height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.1rem; color: var(--text); text-decoration: none; }
.brand img { width: 32px; height: 32px; border-radius: 9px; }
.nav { display: flex; gap: 4px; margin-left: 12px; flex: 1; }
.nav a { color: var(--muted); text-decoration: none; padding: 8px 12px; border-radius: 999px; font-weight: 600; font-size: .95rem; }
.nav a:hover { background: var(--panel-2); color: var(--text); }
.nav a[aria-current="page"] { color: var(--text); background: var(--panel-2); }
.lang { display: inline-flex; border: 1px solid var(--line); border-radius: 999px; overflow: hidden; font-size: .85rem; font-weight: 700; }
.lang a, .lang span { padding: 6px 12px; text-decoration: none; color: var(--muted); }
.lang span[aria-current] { background: var(--accent); color: var(--accent-ink); }
.lang a:hover { background: var(--panel-2); }
.menu-btn { display: none; appearance: none; border: 1px solid var(--line); background: var(--panel); color: var(--text); border-radius: 10px; padding: 7px 12px; font: inherit; font-weight: 700; cursor: pointer; margin-left: auto; }

/* buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; text-decoration: none; padding: 12px 24px; border-radius: 999px; font-weight: 700; border: 1px solid var(--line); background: var(--panel); color: var(--text); min-height: 46px; }
.btn:hover { border-color: var(--accent); }
.btn.primary { background: var(--accent); color: var(--accent-ink); border-color: transparent; box-shadow: 0 6px 22px color-mix(in srgb, var(--accent) 40%, transparent); }
.btn.primary:hover { filter: brightness(1.08); }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 22px 0 8px; }

/* sections */
section { padding: 64px 0; }
.alt { background: var(--bg-2); border-block: 1px solid var(--line); }
.eyebrow { color: var(--green); font-weight: 800; font-size: .8rem; letter-spacing: .12em; text-transform: uppercase; margin-bottom: 10px; }
.lead { font-size: 1.12rem; color: var(--muted); max-width: 62ch; }
.center { text-align: center; } .center .lead { margin-inline: auto; }
.section-head { margin-bottom: 30px; }

.hero { background: var(--hero-glow); padding: 56px 0 40px; }
.hero .grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr); gap: 40px; align-items: center; }
.hero h1 .grad { background: linear-gradient(90deg, var(--accent), var(--green)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.badges { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.badge { font-size: .8rem; font-weight: 700; border: 1px solid var(--line); background: var(--panel); border-radius: 999px; padding: 4px 12px; color: var(--muted); }
.shot { margin: 0; border-radius: 14px; overflow: hidden; border: 1px solid var(--line); background: #0d1017; box-shadow: var(--shadow); }
.shot img { display: block; width: 100%; }
.shot figcaption { background: var(--panel); color: var(--muted); font-size: .85rem; padding: 8px 14px; border-top: 1px solid var(--line); }

/* stats */
.stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }
.stat { background: var(--panel); border: 1px solid var(--line); border-radius: var(--r); padding: 20px; }
.stat b { display: block; font-size: clamp(1.8rem, 4vw, 2.5rem); line-height: 1.1; letter-spacing: -.02em; color: var(--accent); }
.stat span { color: var(--muted); font-size: .92rem; }

/* cards */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 16px; }
.cards.four { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--r); padding: 22px; }
.card h3 { margin-bottom: .4em; }
.card p:last-child { margin-bottom: 0; }
.card .shot { margin: 0 0 16px; box-shadow: none; }
.num { display: inline-grid; place-items: center; width: 34px; height: 34px; border-radius: 50%; background: var(--accent); color: var(--accent-ink); font-weight: 800; margin-bottom: 12px; }
.tag { display: inline-block; font-size: .75rem; font-weight: 800; padding: 2px 10px; border-radius: 999px; background: var(--green-soft); color: var(--green); margin-bottom: 8px; }
.tag.warn { background: var(--warn-soft); color: var(--warn); }

.results { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }
.note { padding: 14px 18px; border-radius: 12px; background: var(--warn-soft); border-left: 4px solid var(--warn); margin: 18px 0; }
.note.ok { background: var(--green-soft); border-color: var(--green); }

/* tables */
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--r); background: var(--panel); }
table { width: 100%; border-collapse: collapse; min-width: 640px; }
th, td { text-align: left; padding: 12px 16px; border-bottom: 1px solid var(--line); vertical-align: top; }
tr:last-child td, tr:last-child th { border-bottom: 0; }
thead th { background: var(--panel-2); font-size: .85rem; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); }
tbody th { font-weight: 600; white-space: nowrap; }
td.yes { color: var(--green); font-weight: 700; } td.no { color: var(--muted); } td.maybe { color: var(--warn); font-weight: 600; }
td.kb, th.kb { background: color-mix(in srgb, var(--accent) 8%, transparent); }

/* FAQ */
details { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 0 18px; margin-bottom: 10px; }
summary { cursor: pointer; font-weight: 700; padding: 14px 0; }
details[open] summary { border-bottom: 1px solid var(--line); margin-bottom: 12px; }

/* prose pages */
.page-head { padding: 48px 0 20px; background: var(--hero-glow); }
.prose { max-width: 760px; }
.prose h2 { margin-top: 1.8em; font-size: 1.4rem; }
.toc { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.toc a { font-size: .85rem; font-weight: 600; text-decoration: none; border: 1px solid var(--line); background: var(--panel); color: var(--muted); padding: 4px 12px; border-radius: 999px; }
.toc a:hover { border-color: var(--accent); color: var(--text); }

.cta { text-align: center; background: var(--hero-glow); }
.cta .actions { justify-content: center; }
#release-box { border: 1px solid var(--line); background: var(--panel); border-radius: var(--r); padding: 20px; }
#release-box[data-state="found"] { border-color: var(--green); }

.site-footer { border-top: 1px solid var(--line); padding: 36px 0 48px; color: var(--muted); font-size: .92rem; background: var(--bg-2); }
.site-footer .cols { display: grid; grid-template-columns: 1.4fr repeat(2, minmax(0, 1fr)); gap: 28px; }
.site-footer h3 { font-size: .85rem; text-transform: uppercase; letter-spacing: .1em; color: var(--text); }
.site-footer ul { list-style: none; margin: 0; padding: 0; } .site-footer li { margin-bottom: 6px; }
.site-footer .fine { margin-top: 26px; padding-top: 18px; border-top: 1px solid var(--line); font-size: .85rem; }

@media (max-width: 900px) {
  .cards.four { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .hero .grid { grid-template-columns: 1fr; }
  .stats, .results { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .site-footer .cols { grid-template-columns: 1fr 1fr; } .site-footer .cols > :first-child { grid-column: 1 / -1; }
}
@media (max-width: 760px) {
  .menu-btn { display: inline-block; }
  .nav { display: none; position: absolute; top: 64px; left: 0; right: 0; flex-direction: column; background: var(--bg); border-bottom: 1px solid var(--line); padding: 10px 16px 16px; margin: 0; }
  .nav.open { display: flex; }
  .site-header .wrap { flex-wrap: nowrap; }
  .lang { margin-left: 0; }
  section { padding: 44px 0; }
}
@media (max-width: 480px) {
  .cards.four { grid-template-columns: 1fr; }
  .stats, .results { grid-template-columns: 1fr; }
  .site-footer .cols { grid-template-columns: 1fr; }
  .brand span { font-size: 1rem; }
  .wrap { padding: 0 16px; }
  .btn { width: 100%; }
}
@media (prefers-reduced-motion: reduce) { * { animation: none !important; transition: none !important; scroll-behavior: auto !important; } }
.site-footer a { color: var(--muted); } .site-footer a:hover { color: var(--accent); }
.site-footer a.brand { color: var(--text); }

/* tables become stacked cards on phones */
@media (max-width: 700px) {
  .stack { overflow: visible; border: 0; background: none; }
  .stack table, .stack tbody, .stack tr, .stack td, .stack th { display: block; min-width: 0; width: 100%; }
  .stack thead { position: absolute; left: -9999px; }
  .stack tr { background: var(--panel); border: 1px solid var(--line); border-radius: 14px; margin-bottom: 12px; padding: 6px 0; overflow: hidden; }
  .stack tbody th { white-space: normal; border: 0; padding-bottom: 4px; font-size: 1.02rem; }
  .stack td { border: 0; padding: 6px 16px; }
  .stack td::before { content: attr(data-label); display: block; font-size: .72rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
  .stack td.kb { background: color-mix(in srgb, var(--accent) 8%, transparent); }
}