:root {
  --bg: #08101f;
  --bg-soft: #111b30;
  --panel: rgba(12, 19, 38, 0.78);
  --text: #eef2ff;
  --muted: #aab4d0;
  --line: rgba(182, 195, 232, 0.14);
  --accent: #33c7ff;
  --accent-2: #7eff8c;
  --shadow: 0 30px 80px rgba(0, 0, 0, 0.35);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Plus Jakarta Sans", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(26, 179, 255, 0.24), transparent 26%),
    radial-gradient(circle at top right, rgba(123, 63, 255, 0.18), transparent 28%),
    linear-gradient(180deg, #08101f 0%, #091426 55%, #060b15 100%);
  min-height: 100vh;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 36px 36px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.8), transparent 86%);
}

.page {
  width: min(920px, calc(100vw - 24px));
  margin: 0 auto;
  padding: 20px 0 56px;
}

.topbar {
  position: sticky;
  top: 16px;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 18px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(8, 14, 28, 0.72);
  backdrop-filter: blur(18px);
}

.brand,
.back-link,
.footer a {
  color: var(--text);
  text-decoration: none;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: "Sora", sans-serif;
  font-weight: 700;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--accent), #5468ff);
  color: #04101f;
}

.back-link {
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.03);
}

main {
  margin-top: 28px;
}

.article {
  padding: 34px;
  border: 1px solid var(--line);
  border-radius: 28px;
  background: var(--panel);
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow);
}

.eyebrow,
.updated {
  color: var(--accent);
  font-family: "Sora", sans-serif;
}

h1, h2 {
  line-height: 1.1;
  letter-spacing: -0.03em;
}

h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  margin: 8px 0 0;
}

h2 {
  margin-top: 32px;
  font-size: 1.45rem;
}

p, li {
  color: var(--muted);
  line-height: 1.75;
  font-size: 1.02rem;
}

strong { color: var(--text); }
ul { padding-left: 22px; }

.footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
  color: var(--muted);
  padding-top: 28px;
}

.footer nav {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}

@media (max-width: 720px) {
  .article { padding: 24px; }
  .topbar { border-radius: 22px; }
  .footer { flex-direction: column; align-items: flex-start; }
}