:root {
  --bg: #0b0713;
  --bg-2: #120a1f;
  --card: rgba(255, 255, 255, 0.045);
  --card-border: rgba(255, 255, 255, 0.09);
  --text: #f4f0fb;
  --muted: #b6acc9;
  --brand-light: #a866f5;
  --brand-mid: #7a3fd6;
  --brand-dark: #422490;
  --ring: rgba(168, 102, 245, 0.35);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  background-image:
    radial-gradient(680px 420px at 12% -10%, rgba(168, 102, 245, 0.28), transparent 60%),
    radial-gradient(560px 420px at 90% 0%, rgba(66, 36, 144, 0.35), transparent 55%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 100%);
  background-attachment: fixed;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: 720px;
  margin: 0 auto;
  padding: clamp(28px, 8vw, 44px) clamp(16px, 5vw, 20px) 70px;
}

header.site {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: clamp(32px, 8vw, 52px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
  white-space: nowrap;
}

.brand img {
  width: 32px;
  height: 32px;
  border-radius: 22%;
  box-shadow: 0 2px 10px rgba(168, 102, 245, 0.4);
}

nav {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.15s ease;
}

nav a:hover { color: var(--text); }

.hero {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 16px;
}

.hero img.icon {
  width: clamp(60px, 18vw, 76px);
  height: clamp(60px, 18vw, 76px);
  border-radius: 22%;
  box-shadow: 0 10px 30px rgba(168, 102, 245, 0.35), 0 0 0 1px rgba(255,255,255,0.06);
}

h1 {
  font-size: clamp(1.9rem, 8vw, 2.4rem);
  margin: 0;
  letter-spacing: -0.02em;
  background: linear-gradient(120deg, #ffffff 0%, var(--brand-light) 80%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

h2 {
  font-size: 1.15rem;
  margin: 0 0 14px;
  letter-spacing: -0.01em;
}

p.tagline {
  color: var(--muted);
  font-size: clamp(1rem, 4vw, 1.12rem);
  margin: 0;
  max-width: 440px;
}

.card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 18px;
  padding: clamp(20px, 5vw, 26px) clamp(18px, 5vw, 28px);
  margin-top: 20px;
  backdrop-filter: blur(14px);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  max-width: 360px;
  background: linear-gradient(135deg, var(--brand-light), var(--brand-dark));
  color: #fff;
  font-weight: 600;
  font-size: 0.98rem;
  padding: 15px 24px;
  border-radius: 999px;
  text-decoration: none;
  box-shadow: 0 8px 24px var(--ring);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 28px var(--ring);
}

.btn.disabled {
  background: rgba(255, 255, 255, 0.06);
  color: var(--muted);
  box-shadow: none;
  cursor: default;
  pointer-events: none;
}

ul { padding-left: 20px; margin: 0; }
ul li { margin-bottom: 8px; color: var(--text); }
ul li::marker { color: var(--brand-light); }

p { color: var(--text); }
.card p { color: var(--muted); }

a { color: var(--brand-light); }
a:hover { color: #c9a2fb; }

footer {
  margin-top: 64px;
  color: var(--muted);
  font-size: 0.85rem;
  border-top: 1px solid var(--card-border);
  padding-top: 22px;
}

footer a { color: var(--muted); }
footer a:hover { color: var(--text); }

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin-top: 8px;
}

.updated { color: var(--muted); font-size: 0.9rem; margin-top: -6px; }

@media (max-width: 480px) {
  .brand { font-size: 0.98rem; }
  .brand img { width: 28px; height: 28px; }
  nav { gap: 12px; }
  nav a { font-size: 0.85rem; }
  .card { border-radius: 14px; }
  .btn { font-size: 0.94rem; padding: 14px 20px; }
}

@media (hover: none) {
  .btn:hover { transform: none; }
}