:root {
  --bg: #0b0b0d;
  --bg-2: #111114;
  --fg: #ececec;
  --muted: #7a7a82;
  --line: #1f1f24;
  --accent: #ffb020;
  --accent-2: #6cf0c2;
  --warn: #ff7a59;
  --ok: #6cf0c2;
  --off: #555;
  --radius: 14px;
  --mono: ui-monospace, "JetBrains Mono", Menlo, Consolas, monospace;
  --sans: ui-sans-serif, -apple-system, "Pretendard", "Apple SD Gothic Neo",
          "Noto Sans KR", system-ui, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  letter-spacing: -0.005em;
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

/* subtle grain */
.grain {
  position: fixed; inset: 0;
  pointer-events: none;
  opacity: .035;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='180' height='180'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
  z-index: 1;
}

/* env banner */
.env-banner {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; gap: 12px;
  padding: 10px 24px;
  background: linear-gradient(90deg, #2a1a00, #3a2200 60%, #2a1a00);
  border-bottom: 1px solid #5a3a00;
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--accent);
}
.env-banner strong { letter-spacing: .14em; }
.env-banner .muted { color: #d6a14a; opacity: .8; }
.env-banner .prod-link {
  margin-left: auto;
  color: #ffd98a;
  text-decoration: none;
  border: 1px solid #5a3a00;
  padding: 4px 10px;
  border-radius: 999px;
  transition: background .2s;
}
.env-banner .prod-link:hover { background: #1a1000; }

.dotpulse {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 0 rgba(255,176,32,.7);
  animation: pulse 1.6s infinite;
  display: inline-block;
}
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(255,176,32,.55); }
  70%  { box-shadow: 0 0 0 10px rgba(255,176,32,0); }
  100% { box-shadow: 0 0 0 0 rgba(255,176,32,0); }
}

/* nav */
.nav {
  display: flex; justify-content: space-between; align-items: center;
  padding: 22px 32px;
  max-width: 1100px; margin: 0 auto;
  position: relative; z-index: 5;
}
.logo {
  display: flex; align-items: center; gap: 10px;
  color: var(--fg);
  text-decoration: none;
  font-weight: 700;
  font-family: var(--mono);
  font-size: 18px;
}
.logo .dot {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent);
}
.muted { color: var(--muted); font-weight: 400; }
.links {
  display: flex; gap: 22px;
  font-family: var(--mono);
  font-size: 13.5px;
}
.links a {
  color: var(--muted);
  text-decoration: none;
  position: relative;
  transition: color .15s;
}
.links a:hover { color: var(--fg); }
.links a:hover::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -6px;
  height: 1px; background: var(--accent);
}

/* layout */
main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 24px 32px 80px;
  position: relative; z-index: 4;
}

/* hero */
.hero { padding: 90px 0 80px; }
.eyebrow {
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: .12em;
  color: var(--accent);
  text-transform: lowercase;
  margin: 0 0 18px;
}
.hero h1 {
  font-size: clamp(40px, 7vw, 84px);
  line-height: 1.02;
  font-weight: 700;
  letter-spacing: -0.03em;
  margin: 0 0 28px;
}
.accent { color: var(--accent); }
.lede {
  font-size: 17px;
  color: #c9c9cf;
  max-width: 560px;
  margin: 0 0 36px;
}
.cta { display: flex; gap: 12px; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center;
  padding: 12px 20px;
  border-radius: 999px;
  font-family: var(--mono);
  font-size: 13.5px;
  text-decoration: none;
  transition: transform .12s, background .2s, border-color .2s;
}
.btn:active { transform: translateY(1px); }
.btn.primary {
  background: var(--accent);
  color: #1a1100;
  font-weight: 700;
}
.btn.primary:hover { background: #ffc14a; }
.btn.ghost {
  border: 1px solid var(--line);
  color: var(--fg);
}
.btn.ghost:hover { border-color: var(--accent); color: var(--accent); }

.meta {
  margin-top: 42px;
  display: flex; gap: 22px; flex-wrap: wrap;
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--muted);
}
.meta code {
  color: var(--fg);
  background: var(--bg-2);
  padding: 2px 6px;
  border-radius: 4px;
  border: 1px solid var(--line);
}

/* section heads */
.section-head {
  display: flex; align-items: baseline; justify-content: space-between;
  border-top: 1px solid var(--line);
  padding-top: 22px;
  margin: 60px 0 28px;
}
.section-head h2 {
  font-size: 22px;
  font-weight: 600;
  margin: 0;
  letter-spacing: -0.01em;
}
.section-head .muted { font-family: var(--mono); font-size: 12.5px; }

/* cards */
.cards {
  list-style: none; padding: 0; margin: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}
@media (max-width: 720px) { .cards { grid-template-columns: 1fr; } }
.card {
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
  transition: border-color .2s, transform .2s;
}
.card:hover { border-color: #2c2c33; transform: translateY(-2px); }
.card .tag {
  display: inline-block;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--muted);
  border: 1px solid var(--line);
  padding: 3px 8px;
  border-radius: 999px;
  margin-bottom: 14px;
}
.card .tag.warn { color: var(--warn); border-color: #4a2218; }
.card .tag.ok   { color: var(--ok);   border-color: #1a4035; }
.card h3 { margin: 0 0 8px; font-size: 18px; font-weight: 600; }
.card p  { margin: 0; color: #b5b5bb; font-size: 14.5px; }

/* notes / flags */
.note-list {
  list-style: none; padding: 0; margin: 0;
  border-top: 1px solid var(--line);
}
.note-list li {
  display: grid;
  grid-template-columns: 120px 1fr auto;
  gap: 16px;
  align-items: baseline;
  padding: 14px 4px;
  border-bottom: 1px solid var(--line);
}
.note-list time, .note-list code {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--muted);
}
.note-list code { color: var(--accent); }
.note-list em {
  font-style: normal;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: .1em;
  padding: 2px 8px;
  border-radius: 4px;
}
em.on  { background: #102a22; color: var(--ok); }
em.off { background: #1d1d20; color: var(--off); }

@media (max-width: 600px) {
  .note-list li {
    grid-template-columns: 1fr;
    gap: 4px;
  }
}

/* health probes */
.probes {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}
@media (max-width: 720px) { .probes { grid-template-columns: 1fr; } }
.probe {
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px 18px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 12px;
  font-family: var(--mono);
  font-size: 13px;
}
.probe b { color: var(--fg); font-weight: 600; }
.probe .probe-detail { color: var(--muted); }
.probe em {
  font-style: normal;
  font-size: 11px;
  letter-spacing: .1em;
  padding: 3px 8px;
  border-radius: 4px;
}
.probe em.ok      { background: #102a22; color: var(--ok); }
.probe em.fail    { background: #2a0f0f; color: var(--warn); }
.probe em.pending { background: #1d1d20; color: var(--muted); }

/* contact */
.contact .lede { margin-bottom: 18px; }
.mail {
  display: inline-block;
  font-family: var(--mono);
  font-size: clamp(22px, 4vw, 32px);
  color: var(--fg);
  text-decoration: none;
  border-bottom: 1px dashed var(--accent);
  padding-bottom: 4px;
  transition: color .2s, border-color .2s;
}
.mail:hover { color: var(--accent); }

/* footer */
footer {
  max-width: 1100px;
  margin: 40px auto 30px;
  padding: 22px 32px 0;
  border-top: 1px solid var(--line);
  display: flex; justify-content: space-between;
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--muted);
  position: relative; z-index: 4;
}

::selection { background: var(--accent); color: #1a1100; }