:root {
  --emerald: #10b981;
  --emerald-dark: #059669;
  --bg: #0b0f0e;
  --panel: #111614;
  --text: #e7eceb;
  --muted: #9aa6a2;
  --border: #1f2826;
  --code-bg: #0e1413;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--emerald); text-decoration: none; }
a:hover { text-decoration: underline; }

main {
  max-width: 720px;
  margin: 0 auto;
  padding: 4rem 1.5rem 2rem;
}

/* Hero */
.hero { text-align: center; }

h1 {
  font-size: 3rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin: 0 0 0.5rem;
  background: linear-gradient(135deg, var(--emerald), #6ee7b7);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.pitch {
  font-size: 1.4rem;
  font-weight: 600;
  margin: 0.5rem auto 0.75rem;
  max-width: 36ch;
}
.pitch em { color: var(--emerald); font-style: normal; }

.sub {
  color: var(--muted);
  max-width: 48ch;
  margin: 0 auto;
}
.sub:last-of-type {
  margin-bottom: 2.5rem;
}

/* Install centerpiece */
.install {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.5rem;
  margin: 0 auto 2rem;
  box-shadow: 0 0 0 1px rgba(16, 185, 129, 0.08), 0 18px 40px -24px rgba(16, 185, 129, 0.5);
}
.install-label {
  margin: 0 0 0.75rem;
  font-size: 0.85rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.install-block {
  display: flex;
  align-items: stretch;
  gap: 0.5rem;
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.5rem 0.5rem 0.5rem 1rem;
}
.install-block code {
  flex: 1;
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.95rem;
  color: var(--text);
  text-align: left;
  align-self: center;
  overflow-x: auto;
  white-space: nowrap;
}
#copy-btn {
  flex: none;
  border: 0;
  border-radius: 8px;
  background: var(--emerald);
  color: #04140e;
  font-weight: 700;
  font-size: 0.85rem;
  padding: 0 0.9rem;
  cursor: pointer;
}
#copy-btn:hover { background: var(--emerald-dark); }
.install-note { margin: 0.85rem 0 0; font-size: 0.85rem; color: var(--muted); }
.install-note code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.85em;
  background: var(--code-bg);
  padding: 0.05em 0.35em;
  border-radius: 5px;
}

/* CTAs */
.cta { display: flex; gap: 0.75rem; justify-content: center; flex-wrap: wrap; }
.btn {
  display: inline-block;
  padding: 0.6rem 1.25rem;
  border-radius: 9px;
  border: 1px solid var(--border);
  color: var(--text);
  font-weight: 600;
  font-size: 0.95rem;
}
.btn:hover { text-decoration: none; border-color: var(--emerald); }
.btn.primary { background: var(--emerald); color: #04140e; border-color: var(--emerald); }
.btn.primary:hover { background: var(--emerald-dark); border-color: var(--emerald-dark); }

/* Sections */
section { margin-top: 3.5rem; }
h2 {
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 0 0 1.25rem;
}

.why ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.4rem; }
.why li { display: flex; gap: 0.85rem; align-items: flex-start; }
.why .ico { font-size: 1.3rem; line-height: 1.4; flex: none; }
.why strong { color: var(--text); }
.why .detail { font-size: 0.85rem; color: var(--muted); }

.how ol { margin: 0; padding-left: 1.25rem; display: grid; gap: 0.6rem; color: var(--muted); }
.how li { padding-left: 0.25rem; }
.how strong, .how code { color: var(--text); }
.how code, .why code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.88em;
  background: var(--code-bg);
  padding: 0.05em 0.4em;
  border-radius: 5px;
}

/* Footer */
footer {
  max-width: 720px;
  margin: 4rem auto 0;
  padding: 2rem 1.5rem;
  border-top: 1px solid var(--border);
  text-align: center;
  color: var(--muted);
  font-size: 0.9rem;
  display: flex;
  gap: 0.6rem;
  justify-content: center;
  flex-wrap: wrap;
}

@media (max-width: 480px) {
  main { padding-top: 2.5rem; }
  h1 { font-size: 2.4rem; }
  .pitch { font-size: 1.2rem; }
}