*{box-sizing:border-box}
:root{color-scheme:light dark;--bg:#f5f7fb;--card:#fff;--text:#171a22;--muted:#697386;--border:#dce1e9;--soft:#eef2f7;--red:#da0000;--green:#1a9b5f;--shadow:0 10px 30px #17203310}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.45 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
a{color:inherit}.page{max-width:1220px;margin:auto;padding:24px}
header{display:flex;align-items:center;gap:14px;margin-bottom:22px}.brand-logo{width:58px;height:58px;border-radius:14px}.brand h1{font-size:30px;line-height:1.1;margin:0}.brand p{margin:4px 0 0;color:var(--muted)}.logout{margin-left:auto;text-decoration:none;color:var(--muted)}
.statusbar{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-bottom:16px}.badge{background:var(--soft);border:1px solid var(--border);padding:6px 10px;border-radius:999px;font-size:13px}.dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--green);margin-right:7px}
.grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}.card{background:var(--card);border:1px solid var(--border);border-radius:18px;padding:18px;box-shadow:var(--shadow)}.metric-label{font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.08em}.metric{font-size:34px;font-weight:780;margin-top:7px;line-height:1}.metric-sub{font-size:13px;color:var(--muted);margin-top:8px}.wide{grid-column:1/-1}.span2{grid-column:span 2}
.section-title{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:12px}.section-title h2{font-size:18px;margin:0}.section-title span{font-size:13px;color:var(--muted)}
.chart-wrap{height:290px;position:relative}svg{width:100%;height:100%;overflow:visible}.axis{stroke:var(--border);stroke-width:1}.line{fill:none;stroke:var(--red);stroke-width:3;stroke-linecap:round;stroke-linejoin:round}.area{fill:color-mix(in srgb,var(--red) 12%,transparent)}
table{width:100%;border-collapse:collapse}th,td{text-align:left;padding:11px 9px;border-bottom:1px solid var(--border)}th{font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.06em}td.num,th.num{text-align:right}.empty{color:var(--muted);padding:18px 0}.source-name{font-weight:650}.source-kind{font-size:12px;color:var(--muted)}
footer{color:var(--muted);font-size:12px;text-align:center;padding:22px 0 6px}.error{background:#ffe7e9;color:#a50016;padding:10px 12px;border-radius:10px;margin:14px 0}
.login-body{min-height:100vh;display:grid;place-items:center;padding:20px}.login-box{width:min(92vw,420px);background:var(--card);border:1px solid var(--border);border-radius:22px;padding:30px;box-shadow:0 24px 70px #11182720}.login-logo{width:78px;height:78px;border-radius:20px;margin-bottom:16px}.login-box h1{margin:0;font-size:28px}.login-box p{margin:7px 0 22px;color:var(--muted)}label{display:block;margin:13px 0 6px;color:var(--muted)}input{width:100%;padding:13px;border:1px solid var(--border);border-radius:11px;background:var(--bg);color:var(--text);font-size:16px}button{width:100%;border:0;border-radius:11px;background:var(--red);color:white;font-size:16px;font-weight:700;padding:13px;margin-top:20px;cursor:pointer}
@media(prefers-color-scheme:dark){:root{--bg:#0f1117;--card:#191d27;--text:#f5f7fb;--muted:#9aa4b2;--border:#2d3444;--soft:#242a36;--shadow:none}.error{background:#3b171c;color:#ffb9c0}}
@media(max-width:900px){.grid{grid-template-columns:repeat(2,minmax(0,1fr))}.span2{grid-column:span 2}}
@media(max-width:560px){.page{padding:16px}.brand-logo{width:44px;height:44px}.brand h1{font-size:22px}.brand p{font-size:13px}.logout{font-size:13px}.grid{grid-template-columns:1fr}.span2{grid-column:1}.metric{font-size:30px}.chart-wrap{height:240px}.card{padding:15px}th,td{padding:9px 5px;font-size:13px}}

.pair-form{display:grid;grid-template-columns:1.1fr 1.5fr .8fr auto;gap:12px;align-items:end}.pair-form label{margin:0;font-size:13px;color:var(--muted)}.pair-form input,.pair-form select{margin-top:6px;width:100%;padding:11px 12px;border:1px solid var(--border);border-radius:10px;background:var(--bg);color:var(--text);font-size:15px}.pair-form button{width:auto;white-space:nowrap;margin:0;padding:12px 16px}.pair-form button:disabled{opacity:.6;cursor:wait}.pair-result{margin-top:15px;padding:14px 16px;border:1px solid var(--border);border-radius:12px;background:var(--soft)}.pair-result-label{font-size:12px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted)}.pair-code{font:700 25px/1.2 ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.12em;margin-top:5px}.pair-expiry{font-size:13px;color:var(--muted);margin-top:4px}
@media(max-width:800px){.pair-form{grid-template-columns:1fr 1fr}.pair-form button{width:100%}}
@media(max-width:560px){.pair-form{grid-template-columns:1fr}.pair-form button{width:100%}.pair-code{font-size:22px;letter-spacing:.08em}}