:root {
    --bg: #0d0f12;
    --card: #16191f;
    --line: #262b33;
    --text: #e7ecf2;
    --muted: #8b94a3;
    --accent: #3b82f6;
    --ok: #22c55e;
    --off: #ef4444;
}
* { box-sizing: border-box; }
body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
    -webkit-font-smoothing: antialiased;
}
.wrap { max-width: 460px; margin: 0 auto; padding: 24px 16px 48px; }
.brand {
    text-align: center; letter-spacing: 3px; font-size: 20px;
    margin: 12px 0 20px; color: var(--text);
}
.brand b { color: var(--accent); }
.brand .scope { color: var(--accent); font-size: 22px; }
.card {
    background: var(--card); border: 1px solid var(--line);
    border-radius: 16px; padding: 24px;
}
h1 { font-size: 22px; margin: 0 0 6px; }
h2 { font-size: 15px; margin: 22px 0 8px; color: var(--muted); text-transform: uppercase; letter-spacing: 1px; }
.muted { color: var(--muted); font-size: 14px; margin: 0 0 16px; }
form { display: flex; flex-direction: column; gap: 10px; margin: 8px 0; }
input {
    background: #0f1216; border: 1px solid var(--line); color: var(--text);
    border-radius: 10px; padding: 13px 14px; font-size: 16px; outline: none;
}
input:focus { border-color: var(--accent); }
button {
    background: var(--accent); color: #fff; border: 0; border-radius: 10px;
    padding: 13px 14px; font-size: 16px; font-weight: 600; cursor: pointer;
}
button:hover { filter: brightness(1.08); }
button.link, .link {
    background: none; color: var(--accent); padding: 0; font-weight: 500;
    text-decoration: none; font-size: 14px; cursor: pointer;
}
.secondary { align-items: center; }
.error {
    background: rgba(239,68,68,.12); border: 1px solid rgba(239,68,68,.4);
    color: #fca5a5; border-radius: 10px; padding: 10px 12px; font-size: 14px; margin-bottom: 8px;
}
.ok-box {
    background: rgba(34,197,94,.12); border: 1px solid rgba(34,197,94,.4);
    color: #86efac; border-radius: 10px; padding: 10px 12px; font-size: 14px; margin: 8px 0;
}
.row-top { display: flex; justify-content: space-between; align-items: baseline; }
.stat { border: 1px solid var(--line); border-radius: 12px; overflow: hidden; }
.stat-row {
    display: flex; justify-content: space-between; align-items: center;
    padding: 12px 14px; border-bottom: 1px solid var(--line); font-size: 15px;
}
.stat-row:last-child { border-bottom: 0; }
.stat-row span { color: var(--muted); }
.ok { color: var(--ok); }
.off { color: var(--off); }
.link-block { border: 1px solid var(--line); border-radius: 12px; padding: 14px; margin: 12px 0; }
.link-block p { font-size: 14px; margin: 0 0 10px; }
.code-badge {
    font-size: 30px; letter-spacing: 6px; text-align: center; font-weight: 700;
    background: #0f1216; border: 1px dashed var(--accent); border-radius: 10px;
    padding: 14px; color: var(--accent);
}
.tg-btn {
    display: block; text-align: center; text-decoration: none; margin-top: 10px;
    background: #229ED9; color: #fff; border-radius: 10px; padding: 12px; font-weight: 600;
}
.tg-btn:hover { filter: brightness(1.08); }
.nav-btn {
    display: block; text-align: center; text-decoration: none; margin: 12px 0;
    background: #1f2733; color: var(--text); border: 1px solid var(--line);
    border-radius: 10px; padding: 12px; font-weight: 600;
}
.nav-btn:hover { border-color: var(--accent); }
.center { text-align: center; }
.chat {
    border: 1px solid var(--line); border-radius: 12px; padding: 12px;
    height: 55vh; overflow-y: auto; background: #0f1216; margin: 12px 0;
    display: flex; flex-direction: column; gap: 8px;
}
.msg { display: flex; flex-direction: column; max-width: 82%; }
.msg.mine { align-self: flex-end; align-items: flex-end; }
.msg.admin { align-self: flex-start; align-items: flex-start; }
.bubble {
    padding: 9px 12px; border-radius: 12px; font-size: 15px; line-height: 1.35;
    word-wrap: break-word; white-space: pre-wrap;
}
.msg.mine .bubble { background: var(--accent); color: #fff; border-bottom-right-radius: 4px; }
.msg.admin .bubble { background: #222833; color: var(--text); border-bottom-left-radius: 4px; }
.msg-meta { font-size: 11px; color: var(--muted); margin-top: 3px; }
.chat-form { flex-direction: row; gap: 8px; }
.chat-form input { flex: 1; }
.chat-form button { width: auto; padding: 13px 18px; }
.pay-item {
    display: flex; justify-content: space-between; align-items: center;
    text-decoration: none; color: var(--text); background: #16191f;
    border: 1px solid var(--line); border-radius: 10px; padding: 14px; margin: 8px 0;
}
.pay-item:hover { border-color: var(--accent); }
.pay-item b { color: var(--accent); }
.fld { display: flex; flex-direction: column; gap: 4px; color: var(--muted); font-size: 13px; }
.fld select {
    background: #0f1216; border: 1px solid var(--line); color: var(--text);
    border-radius: 10px; padding: 12px 14px; font-size: 16px; outline: none;
}
.fld select:focus { border-color: var(--accent); }
.pay-btn { width: 100%; margin: 6px 0; }
.pay-btn.sbp { background: #22c55e; }
.qr-wrap { display: flex; justify-content: center; margin: 16px 0; }
.qr-img {
    width: 260px; height: 260px; background: #fff; padding: 12px;
    border-radius: 12px; image-rendering: pixelated;
}
.foot { text-align: center; margin-top: 20px; }
.foot a { color: var(--muted); font-size: 13px; text-decoration: none; }