:root{--bg:#0f0d1a;--card:#1b1830;--ink:#ece6ff;--mute:#a59cc8;--gold:#d9b45a;--err:#ff7a7a}
*{box-sizing:border-box}body{margin:0;font-family:Georgia,serif;background:radial-gradient(circle at 20% 0,#2a2050,var(--bg) 60%);color:var(--ink);min-height:100vh}
header{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;padding:14px 24px;border-bottom:1px solid #2f2950}
.brand{color:var(--gold);text-decoration:none;font-size:20px}.brand span{color:var(--ink);font-size:15px;margin-left:6px}
nav a{color:var(--mute);margin-left:14px;text-decoration:none;font-family:system-ui;font-size:14px}nav a.on,nav a:hover{color:var(--gold)}
main{max-width:1000px;margin:24px auto;padding:0 16px}footer{text-align:center;color:var(--mute);font-size:12px;padding:30px}
.card{background:var(--card);border:1px solid #322b58;border-radius:12px;padding:18px;margin-bottom:16px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px}
h1,h2,h3{color:var(--gold);font-weight:normal;margin-top:0}
input,textarea,select,button{font:inherit;font-family:system-ui;font-size:14px;padding:9px 11px;border-radius:8px;border:1px solid #403670;background:#120f22;color:var(--ink);margin:4px 0}
input,textarea,select{width:100%}button{background:var(--gold);color:#1a1300;border:0;cursor:pointer;font-weight:600}button.ghost{background:transparent;color:var(--gold);border:1px solid var(--gold)}
.err{color:var(--err)}.ok{color:#8de39b}.mute{color:var(--mute);font-family:system-ui;font-size:13px}
table{width:100%;border-collapse:collapse;font-family:system-ui;font-size:14px}td,th{padding:6px 8px;border-bottom:1px solid #2c2650;text-align:left}tr.now{background:#3a2f12;color:var(--gold)}
.tcard{background:linear-gradient(160deg,#2c2452,#171330);border:1px solid var(--gold);border-radius:10px;padding:14px;text-align:center;min-height:150px}
.tcard .sym{font-size:36px}.rev{transform:rotate(180deg);display:inline-block}
.hex{font-family:monospace;font-size:22px;line-height:1.1;letter-spacing:2px}.big{font-size:40px;color:var(--gold)}
.row{display:flex;gap:10px;flex-wrap:wrap;align-items:end}.row>*{flex:1}