:root {
  --bg: #0f1419;
  --bg-elev: #172029;
  --ink: #eef3f7;
  --muted: #9aafc0;
  --line: rgba(148, 180, 204, 0.22);
  --accent: #3d9eff;
  --accent-soft: rgba(61, 158, 255, 0.14);
  --ok: #5dcea2;
  --radius: 18px;
  --max: 720px;
  --font: "Segoe UI", "Helvetica Neue", Helvetica, Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font);
  color: var(--ink);
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(61, 158, 255, 0.18), transparent 55%),
    radial-gradient(900px 500px at 100% 0%, rgba(93, 206, 162, 0.12), transparent 50%),
    linear-gradient(180deg, #101820 0%, #0c1116 100%);
  line-height: 1.65;
}

a {
  color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a:hover {
  color: #7bbbff;
}

.wrap {
  width: min(100% - 2rem, var(--max));
  margin: 0 auto;
}

.site-header {
  padding: 1.25rem 0 0.5rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.85rem;
  color: inherit;
  text-decoration: none;
}

.brand img {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  object-fit: cover;
  background: #111;
  box-shadow: 0 0 0 1px var(--line);
}

.brand strong {
  display: block;
  font-size: 1.2rem;
  letter-spacing: 0.01em;
}

.brand span {
  display: block;
  color: var(--muted);
  font-size: 0.85rem;
}

.hero {
  padding: 2.5rem 0 1.5rem;
}

.hero h1 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.hero p {
  margin: 0;
  max-width: 38rem;
  color: var(--muted);
  font-size: 1.05rem;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.1rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 600;
  text-decoration: none;
  transition: background 0.15s ease, border-color 0.15s ease, transform 0.15s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--accent);
  color: #041018;
}

.btn-primary:hover {
  color: #041018;
  background: #6bb1ff;
}

.btn-ghost {
  background: var(--accent-soft);
  border-color: var(--line);
  color: var(--ink);
}

.btn-ghost:hover {
  color: var(--ink);
  border-color: rgba(61, 158, 255, 0.45);
}

.links {
  display: grid;
  gap: 0.85rem;
  margin: 1.5rem 0 2.5rem;
}

.links a {
  display: block;
  padding: 1rem 1.15rem;
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--bg-elev) 88%, white 4%);
  border: 1px solid var(--line);
  color: var(--ink);
  text-decoration: none;
  transition: border-color 0.15s ease, background 0.15s ease;
}

.links a:hover {
  border-color: rgba(61, 158, 255, 0.5);
  background: color-mix(in srgb, var(--bg-elev) 70%, #1e3a55 30%);
}

.links strong {
  display: block;
  margin-bottom: 0.2rem;
}

.links small {
  color: var(--muted);
}

.page {
  padding: 1.25rem 0 3rem;
}

.page h1 {
  margin: 0 0 0.35rem;
  font-size: clamp(1.6rem, 3.5vw, 2.1rem);
  letter-spacing: -0.02em;
}

.meta {
  margin: 0 0 1.5rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.page h2 {
  margin: 1.75rem 0 0.55rem;
  font-size: 1.15rem;
}

.page p,
.page li {
  color: #d5e1ea;
}

.page ul {
  padding-left: 1.2rem;
}

.page li + li {
  margin-top: 0.35rem;
}

.note {
  margin: 1.5rem 0;
  padding: 1rem 1.1rem;
  border-radius: var(--radius);
  background: var(--accent-soft);
  border: 1px solid var(--line);
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 1.4rem 0 2rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem 1.1rem;
  margin-bottom: 0.75rem;
}

.site-footer a {
  color: var(--muted);
  text-decoration: none;
}

.site-footer a:hover {
  color: var(--ink);
}

@media (max-width: 520px) {
  .brand img {
    width: 48px;
    height: 48px;
  }

  .cta-row {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }
}