/* $ecure BTC — thème écran cathodique (vert phosphore sur noir). Aucune police ni ressource externe. */
:root { --bg: #050b06; --fg: #c8f5d2; --green: #33ff59; --muted: #6f9c78; --line: #12301a; }
* { box-sizing: border-box; }
html { background: var(--bg); }
body { margin: 0; color: var(--fg); font: 17px/1.6 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
       background: radial-gradient(ellipse at top, #0b2412 0%, var(--bg) 60%); min-height: 100vh; }
main { max-width: 720px; margin: 0 auto; padding: 48px 20px 64px; text-align: center; }
.logo { width: 256px; height: 256px; max-width: 70vw; height: auto; filter: drop-shadow(0 0 28px rgba(51, 255, 89, .25)); }
h1 { color: var(--green); font-size: 44px; margin: 18px 0 6px; letter-spacing: 1px; text-shadow: 0 0 14px rgba(51, 255, 89, .45); }
h2 { color: var(--green); font-size: 20px; margin: 40px 0 12px; }
.lead { font-size: 21px; margin: 6px 0 14px; }
.notwallet { display: inline-block; border: 1px solid var(--line); border-radius: 10px; padding: 10px 16px; color: var(--green); }
ul { text-align: left; padding-left: 22px; margin: 0 auto; max-width: 620px; }
li { margin: 10px 0; }
li::marker { content: "▸  "; color: var(--green); }
.meta { color: var(--muted); margin-top: 36px; }
.signature { color: var(--muted); font-size: 13px; margin-top: 28px; }
@media (max-width: 520px) { h1 { font-size: 34px; } .lead { font-size: 18px; } }
.own { margin-top: 48px; padding: 22px 22px 8px; border: 1px solid var(--line); border-radius: 14px; background: rgba(51, 255, 89, .03); }
.own h2 { margin-top: 0; }
.own > p { text-align: left; }
.cta { text-align: center !important; color: var(--green); margin: 22px 0 14px; }
a { color: var(--green); }
.own h3 { color: var(--green); font-size: 17px; margin: 26px 0 8px; text-align: left; }
.stack li::marker { content: "◆  "; }
.stacknote { color: var(--muted); font-size: 14px; text-align: left !important; }