/* B34N5x - dark XRP/Matrix theme. No external fonts. */
*{box-sizing:border-box}
:root{--bg:#07090b;--panel:#0d1417;--line:#1c3a36;--text:#d7e4df;--dim:#9fb3ad;--green:#3df58f;--teal:#2ee6d0;--link:#5ff0c8;--mono:"DejaVu Sans Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;background:var(--bg);color:var(--text);line-height:1.6}
a{color:var(--link)}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--teal);outline-offset:2px}
.wrap{max-width:860px;margin:0 auto;padding:0 20px;position:relative}
h1,h2,h3,nav .brand{font-family:var(--mono)}
header{background:#050708;border-bottom:1px solid var(--line)}
nav{display:flex;align-items:center;gap:20px;padding:14px 0;flex-wrap:wrap}
nav .brand{font-weight:700;color:var(--green);text-decoration:none;margin-right:auto;letter-spacing:.04em}
nav .brand::before{content:"> ";color:var(--teal)}
nav a{text-decoration:none;font-weight:500;color:var(--text)}
nav a:hover{color:var(--green)}
nav a[aria-current]{color:var(--green);border-bottom:2px solid var(--green)}
.hero{padding:56px 0 32px}
.hero h1{font-size:clamp(1.6rem,4.5vw,2.4rem);line-height:1.25;margin:0 0 14px;color:var(--green)}
.hero p{font-size:1.1rem;color:var(--dim);margin:0}
/* Home banner hero */
.banner{position:relative;border-bottom:1px solid var(--line);overflow:hidden;background:#020403}
.banner picture img{display:block;width:100%;height:auto;max-height:500px;object-fit:cover}
.banner canvas{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;opacity:.55}
.banner .overlay{position:absolute;inset:0;display:flex;align-items:flex-end;background:linear-gradient(180deg,rgba(2,4,3,0) 30%,rgba(2,4,3,.92) 100%)}
.banner .overlay .wrap{width:100%;padding-bottom:28px}
.banner h1{font-size:clamp(1.4rem,4.2vw,2.5rem);line-height:1.25;margin:0 0 10px;color:var(--green);text-shadow:0 0 12px rgba(61,245,143,.35)}
.banner p{margin:0;color:#e3efe9;font-size:1.05rem;max-width:640px}
.xmark{position:absolute;top:14px;right:14px;z-index:2;margin:0;padding:6px;background:rgba(5,7,8,.6);border:1px solid var(--line);border-radius:10px;cursor:pointer;line-height:0}
.xmark img{width:32px;height:32px}
.xmark:hover{border-color:var(--green)}
section{margin:28px 0}
h2{color:var(--teal);font-size:1.25rem;margin-bottom:10px}
h2::before{content:"// ";color:var(--green)}
.card{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:18px 20px;margin:12px 0}
.card h3,.card > h2{margin:0 0 6px;font-size:1.05rem;color:#eafff4}.card > h2::before{content:none}
.card.disabled{opacity:.6}
.tag{display:inline-block;background:#0f2e27;color:var(--green);font-size:.8rem;padding:2px 10px;border-radius:99px;font-family:var(--mono)}
.note{background:#0b1d1a;border-left:4px solid var(--teal);padding:12px 16px;border-radius:6px}
label{font-weight:600;display:block;margin:12px 0 6px}
input[type=text]{width:100%;padding:12px;font-size:1rem;border:1px solid #2b5a52;border-radius:8px;font-family:var(--mono);background:#050a09;color:var(--text)}
input::placeholder{color:#7f948e}
button{margin-top:14px;background:var(--green);color:#03140b;font-weight:700;border:0;border-radius:8px;padding:12px 22px;font-size:1rem;cursor:pointer;font-family:var(--mono)}
button:disabled{background:#2c6b4a;color:#cfe;cursor:wait}
fieldset{border:1px solid var(--line);border-radius:8px;padding:10px 14px}
fieldset label{display:inline;font-weight:500;margin-right:16px}
.dim{color:var(--dim)}
.result{margin-top:18px;padding:14px 16px;border-radius:8px;display:none}
.result.ok{display:block;background:#0b2219;border:1px solid #23704a}
.result.err{display:block;background:#2a0f12;border:1px solid #8a2f38;color:#ffd9dc}
.result .big{font-size:1.6rem;font-weight:700;color:var(--green);font-family:var(--mono)}
footer{border-top:1px solid var(--line);margin-top:48px;padding:20px 0;color:var(--dim);font-size:.9rem;text-align:center;font-family:var(--mono)}
.netbanner{padding:10px 0;color:#fff;font-size:.98rem}
.netbanner.testnet{background:#0d6b63}
.netbanner.mainnet{background:#6b3fb5}
body[data-network=mainnet] button{background:#8b5fd6;color:#fff}
body[data-network=mainnet] button:disabled{background:#4d3577}
body[data-network=mainnet] .note{border-left-color:#8b5fd6;background:#1a1229}
.switch{margin-top:22px;color:var(--dim)}
a.card.pick{display:block;text-decoration:none;color:inherit;border-left:6px solid var(--teal)}
a.card.pick.mainnet{border-left-color:#8b5fd6}
a.card.pick:hover{box-shadow:0 0 0 1px var(--green),0 4px 18px rgba(61,245,143,.12)}
a.card.pick.mainnet .tag{background:#21173a;color:#cbb6f5}
/* Riddle panel */
.riddles{position:fixed;inset:auto 16px 16px auto;max-width:420px;width:calc(100% - 32px);z-index:50;background:#06100d;border:1px solid var(--green);border-radius:12px;padding:18px 20px;box-shadow:0 0 30px rgba(61,245,143,.2)}
.riddles[hidden]{display:none}
.riddles h2{margin-top:0}
.riddles ol{padding-left:20px;margin:0}
.riddles li{margin:0 0 12px}
.riddles button{margin-top:6px;padding:6px 14px;font-size:.9rem}
.riddles .ans{color:var(--green);font-family:var(--mono);font-weight:700}
.riddles .close{position:absolute;top:8px;right:10px;margin:0;background:transparent;color:var(--text);border:1px solid var(--line)}
@media (max-width:600px){.banner .overlay .wrap{padding-bottom:18px}.banner p{font-size:.95rem}}
.install{font-size:.92rem;color:var(--dim);border:1px dashed var(--line);border-radius:8px;padding:8px 12px}
.install[hidden]{display:none}
.install button{margin:0 0 0 6px;padding:4px 12px;font-size:.85rem}
@media (max-width:600px){
 .banner picture img{min-height:420px;object-position:70% 30%}
 .banner .overlay{background:linear-gradient(180deg,rgba(2,4,3,0) 0%,rgba(2,4,3,.55) 40%,rgba(2,4,3,.97) 72%)}
 .banner h1{text-shadow:0 1px 2px #000,0 0 12px rgba(61,245,143,.3)}
}

/* Walkthrough video */
.walkthrough video{display:block;width:100%;height:auto;border-radius:12px;border:1px solid var(--green);box-shadow:0 0 0 1px rgba(61,245,143,.12),0 8px 28px rgba(0,0,0,.35);background:#020403}
@media (prefers-reduced-motion: reduce){
 .walkthrough video{/* JS pauses autoplay and adds controls */}
}

.disclaimer{font-size:.8em;opacity:.8;margin:.5em 0 0}
.consent{display:flex;gap:.5em;align-items:center;margin:.75em 0;font-size:.9em}
.consent input{width:auto}
.beginner-only{display:none}body.beginner .beginner-only{display:block}.beginner-toggle{margin-left:1em;font-size:.9em;cursor:pointer}

.claim-sheet{border:1px solid #888;padding:1rem;margin-top:1rem}
.claim-sheet dt{font-weight:bold}.claim-sheet dd{margin:0 0 .5rem 0;word-break:break-all}
.print-mark{display:none}
@media print{body.testnet-print .print-mark{display:flex;position:fixed;left:0;right:0;justify-content:space-between;visibility:visible;color:#c81e1e;font:bold 8pt Arial,sans-serif;z-index:10;pointer-events:none}
@page{margin:10mm 12mm}body.testnet-print .print-head{top:0}body.testnet-print .print-foot{bottom:0}
body.testnet-print .print-watermark{top:0;bottom:0;left:0;right:0;flex-direction:column;justify-content:space-around;align-items:center;font-size:46pt;white-space:nowrap;opacity:.18;z-index:10;overflow:visible}body.testnet-print .print-watermark span{display:block;transform:rotate(-45deg)}
body.testnet-print .claim-sheet{position:relative;z-index:1;background:transparent;margin:0;padding:16pt 0;box-decoration-break:clone;-webkit-box-decoration-break:clone}
html,body{background:#fff!important;color:#000!important}
body.printing-sheet > *:not(main):not(.print-mark),body.printing-sheet main > *:not(#heir-sheet-card),body.printing-sheet #heir-sheet-card > :not(.claim-sheet){display:none!important}
body.printing-sheet main,body.printing-sheet #heir-sheet-card{margin:0;padding:0;border:0;background:transparent!important}
body.printing-sheet .claim-sheet{border:0}
body.printing-sheet .claim-sheet,body.printing-sheet .claim-sheet *{color:#000!important;background:transparent!important}
body.printing-sheet .claim-sheet h2::before{content:none}}
/* Matrix backdrop: canvas behind everything; every text block on a semi-opaque dark panel. */
.matrix-bg{position:fixed;inset:0;width:100vw;height:100vh;z-index:-1;pointer-events:none;opacity:.45}
body.has-matrix{background:#020403}
body.has-matrix header,body.has-matrix footer,body.has-matrix .hero,body.has-matrix .card,body.has-matrix .note{background:rgba(0,0,0,.78);-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px)}
body.has-matrix .hero{padding:24px 20px;margin:24px 0;border-radius:12px;border:1px solid var(--line)}
@media print{.matrix-bg{display:none!important}body.has-matrix header,body.has-matrix footer,body.has-matrix .hero,body.has-matrix .card,body.has-matrix .note{background:transparent!important;-webkit-backdrop-filter:none!important;backdrop-filter:none!important}}