/* KuberNation — kubernation.dev landing page.
   Self-contained: system fonts, no CDN, no build step. The palette echoes the
   app: deep-ocean slate, parchment-gold chrome, green land, and meaning colours
   (red/amber) used sparingly. */

:root {
  --sea: #0c1c2b;
  --sea-2: #0f2436;
  --surface: #16314a;
  --surface-2: #1b3b58;
  --edge: #27486690;
  --gold: #e3c279;
  --gold-dim: #b9954a;
  --land: #5b9b54;
  --ink: #e9eff5;
  --ink-dim: #a3b7c8;
  --ink-faint: #8198ad;
  --crit: #df6258;
  --warn: #e3b24a;
  --maxw: 1080px;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, ui-serif, serif;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--sans);
  color: var(--ink);
  background: var(--sea);
  background-image:
    radial-gradient(1200px 600px at 70% -10%, #15324c 0%, transparent 60%),
    radial-gradient(900px 500px at 0% 10%, #102a40 0%, transparent 55%);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--gold); text-decoration: none; }
a:hover { color: var(--ink); }

/* Visible keyboard focus on the dark theme (the gold/ghost buttons suppress the
   default ring). */
a:focus-visible, .btn:focus-visible, .nav-cta:focus-visible {
  outline: 2px solid var(--gold); outline-offset: 2px; border-radius: 4px;
}

/* Anchor jumps shouldn't hide the target heading under the sticky 60px nav. */
[id] { scroll-margin-top: 76px; }

/* Visually hidden, still read by assistive tech. */
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* ---- nav ---- */
.nav {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(10px);
  background: #0a1825d9;
  border-bottom: 1px solid var(--edge);
}
.nav .wrap { display: flex; align-items: center; gap: 20px; height: 60px; }
.brand { display: flex; align-items: center; gap: 10px; font-family: var(--serif); font-size: 20px; font-weight: 700; color: var(--ink); }
.brand img { width: 28px; height: 28px; }
.nav-links { margin-left: auto; display: flex; gap: 22px; align-items: center; }
.nav-links a { color: var(--ink-dim); font-size: 15px; }
.nav-links a:hover { color: var(--ink); }
.nav-cta { padding: 8px 16px; border-radius: 8px; background: var(--gold); color: #25190a !important; font-weight: 600; }
.nav-cta:hover { background: var(--ink); }

/* ---- hero ---- */
.hero { text-align: center; padding: 52px 0 40px; }
.hero-logo { margin: 0 0 16px; }
.hero-logo img {
  width: 300px; max-width: 70%; height: auto;
  border-radius: 16px; box-shadow: 0 18px 44px -16px #00000099;
}
.hero .tag { font-size: clamp(18px, 2.6vw, 24px); color: var(--gold); margin: 0 0 18px; font-family: var(--serif); }
.hero .lede { font-size: 18px; color: var(--ink-dim); max-width: 680px; margin: 0 auto 28px; }
.btns { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.btn { padding: 12px 22px; border-radius: 10px; font-weight: 600; font-size: 16px; border: 1px solid transparent; }
.btn-primary { background: var(--gold); color: #25190a; }
.btn-primary:hover { background: #f0d089; color: #25190a; }
.btn-ghost { border-color: var(--edge); color: var(--ink); background: #ffffff08; }
.btn-ghost:hover { border-color: var(--gold); color: var(--ink); }

.shot {
  width: 100%; height: auto; border-radius: 12px; border: 1px solid var(--edge);
  box-shadow: 0 24px 60px -20px #00000099; display: block;
}
.hero-shot { margin-top: 40px; }
figure { margin: 0; }
figcaption { color: var(--ink-faint); font-size: 14px; margin-top: 10px; text-align: center; }

/* ---- sections ---- */
/* A hairline rule + generous padding visually separates each subsection. */
section { padding: 68px 0; border-top: 1px solid var(--edge); }
.section-title { font-family: var(--serif); font-size: clamp(26px, 4vw, 38px); margin: 0 0 10px; text-align: center; }
.section-sub { color: var(--ink-dim); text-align: center; max-width: 700px; margin: 0 auto 40px; font-size: 17px; }

/* pillars */
.pillars { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.pillar { background: var(--surface); border: 1px solid var(--edge); border-radius: 12px; padding: 22px; }
.pillar h3 { margin: 0 0 8px; font-size: 17px; color: var(--gold); }
.pillar p { margin: 0; color: var(--ink-dim); font-size: 15px; }

/* alternating feature rows */
.feature { display: grid; grid-template-columns: 1fr 1fr; gap: 44px; align-items: center; margin-bottom: 64px; }
.feature:last-child { margin-bottom: 0; }
.feature.flip .feat-text { order: 2; }
.feature h3 { font-family: var(--serif); font-size: 26px; margin: 0 0 12px; }
.feature p { color: var(--ink-dim); font-size: 16px; margin: 0 0 14px; }
.feature ul { margin: 0; padding-left: 18px; color: var(--ink-dim); font-size: 15px; }
.feature li { margin-bottom: 6px; }
.feature li b { color: var(--ink); font-weight: 600; }
.kicker { text-transform: uppercase; letter-spacing: 1.5px; font-size: 12px; color: var(--gold-dim); font-weight: 700; margin: 0 0 6px; }

/* mapping table */
.mapwrap { background: var(--surface); border: 1px solid var(--edge); border-radius: 12px; overflow: hidden; }
table { width: 100%; border-collapse: collapse; font-size: 15px; }
th, td { text-align: left; padding: 12px 18px; border-bottom: 1px solid var(--edge); }
th { color: var(--gold); font-weight: 600; background: #ffffff06; }
td:first-child { color: var(--ink); font-weight: 600; }
td:last-child { color: var(--ink-dim); }
tr:last-child td { border-bottom: none; }

/* install */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.card { background: var(--surface); border: 1px solid var(--edge); border-radius: 12px; padding: 22px; }
.card h3 { margin: 0 0 6px; font-size: 18px; }
.card .plat { color: var(--gold); font-size: 13px; font-weight: 700; letter-spacing: 1px; text-transform: uppercase; }
.card p { color: var(--ink-dim); font-size: 14px; margin: 10px 0 0; }
code, .codeblock { font-family: var(--mono); font-size: 13.5px; }
.codeblock {
  display: block; background: #081320; border: 1px solid var(--edge); border-radius: 8px;
  padding: 12px 14px; margin: 14px 0 0; color: #cfe3d6; overflow-x: auto; white-space: pre;
}
.note { color: var(--ink-faint); font-size: 13px; margin-top: 12px; }

/* posture/honesty callout */
.callout {
  background: linear-gradient(180deg, #14304790, #112740);
  border: 1px solid var(--edge); border-left: 3px solid var(--gold);
  border-radius: 10px; padding: 20px 24px; margin: 0 auto; max-width: 820px;
}
.callout h3 { margin: 0 0 8px; font-family: var(--serif); font-size: 22px; }
.callout p { margin: 0; color: var(--ink-dim); font-size: 16px; }

/* footer */
footer { border-top: 1px solid var(--edge); padding: 40px 0; color: var(--ink-faint); font-size: 13.5px; }
footer .wrap { display: flex; flex-wrap: wrap; gap: 24px; justify-content: space-between; }
footer a { color: var(--ink-dim); }
footer .disclaimer { max-width: 640px; line-height: 1.6; }

@media (max-width: 820px) {
  .pillars { grid-template-columns: repeat(2, 1fr); }
  .cards { grid-template-columns: 1fr; }
  .feature { grid-template-columns: 1fr; gap: 20px; margin-bottom: 48px; }
  .feature.flip .feat-text { order: 0; }
  /* Keep the in-page links reachable on mobile — shrink + wrap rather than hide. */
  .nav .wrap { height: auto; flex-wrap: wrap; padding-top: 8px; padding-bottom: 8px; }
  .nav-links { gap: 14px 16px; flex-wrap: wrap; justify-content: flex-end; }
  .nav-links a { font-size: 14px; }
}