:root {
  --bg: #0b0e14; --card: #151922; --sub: #1e2430; --border: #283040;
  --blue: #007acc; --cyan: #00b4d8; --green: #0ecb81; --red: #f6465d; --gold: #f0b90b;
  --purple: #9d4edd; --orange: #f77f00; --text: #eaecef; --muted: #848e9c;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 14px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  padding: 0 12px env(safe-area-inset-bottom, 0);
  max-width: 720px; margin-inline: auto;
}
h1 { font-size: 17px; margin: 0; }
.top { position: sticky; top: 0; z-index: 5; background: var(--bg); padding: 10px 0 8px; border-bottom: 1px solid var(--border); }
.row { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.btc { margin-top: 6px; font-size: 13px; font-weight: 600; }
.btc.Green { color: var(--green); } .btc.Yellow { color: var(--gold); } .btc.Red { color: var(--red); }
.pill { font-size: 11px; font-weight: 700; padding: 2px 8px; border-radius: 10px; }
.pill-ok { background: rgba(14,203,129,.15); color: var(--green); }
.pill-bad { background: rgba(246,70,93,.15); color: var(--red); }
.pill-muted { background: var(--sub); color: var(--muted); }
.controls { padding: 12px 0 4px; }
.btn {
  width: 100%; min-height: 48px; border: 0; border-radius: 8px; background: var(--blue); color: #fff;
  font-size: 15px; font-weight: 700; letter-spacing: .3px; cursor: pointer;
}
.btn:disabled { background: var(--sub); color: var(--muted); cursor: default; }
.info { margin-top: 8px; font-size: 13px; }
.info.ok { color: var(--green); } .info.warn { color: var(--gold); } .info.bad { color: var(--red); }
.muted { color: var(--muted); } .small { font-size: 12px; }
.list { display: flex; flex-direction: column; gap: 8px; margin-top: 10px; }
.card { background: var(--card); border: 1px solid var(--border); border-radius: 8px; padding: 8px 10px; }
.c1, .c2, .c3 { display: flex; justify-content: space-between; align-items: center; gap: 8px; flex-wrap: wrap; }
.c1 .sym { font-weight: 700; font-size: 15px; }
.setup { font-size: 11px; font-weight: 700; margin-left: 6px; }
.price { color: var(--gold); font-weight: 700; font-size: 13px; }
.c2, .c3 { margin-top: 5px; }
.badge { font-size: 11px; font-weight: 700; padding: 2px 8px; border-radius: 4px; color: #fff; }
.rs { color: var(--cyan); font-weight: 700; font-size: 12px; }
.c3 { font-size: 11px; font-weight: 600; }
.tag { margin-top: 6px; font-size: 12px; font-weight: 600; }
.tag.trig { color: var(--green); } .tag.pre { color: var(--gold); } .tag.byp { color: var(--orange); }
.sum { margin-top: 6px; font-size: 12px; color: var(--muted); }
details { margin-top: 6px; }
summary { cursor: pointer; font-size: 12px; color: var(--cyan); padding: 4px 0; }
.plan { display: grid; grid-template-columns: auto 1fr; gap: 2px 12px; font-size: 12px; padding: 4px 0 2px; }
.plan .k { color: var(--muted); }
.plan .sl { color: var(--red); } .plan .tp { color: var(--green); }
.note { font-size: 11px; color: var(--muted); padding-top: 3px; }
.empty { text-align: center; color: var(--muted); padding: 40px 12px; }
.foot { padding: 18px 0 24px; text-align: center; line-height: 1.6; }

/* ---- buoc 4a: dang nhap, form, quan ly user ---- */
.panel { max-width: 420px; margin: 8vh auto 0; padding: 18px 16px; background: var(--card); border: 1px solid var(--border); border-radius: 10px; }
.panel h1 { font-size: 20px; margin-bottom: 12px; }
label { display: block; margin: 10px 0 4px; font-size: 12px; color: var(--muted); }
input, select {
  width: 100%; min-height: 44px; padding: 8px 10px; background: var(--sub); color: var(--text);
  border: 1px solid var(--border); border-radius: 6px; font-size: 15px;
}
input:focus, select:focus { outline: 2px solid var(--blue); outline-offset: 1px; }
.panel .btn { margin-top: 14px; }
.btn-ghost { background: transparent; border: 1px solid var(--border); color: var(--muted); }
.btn-small { width: auto; min-height: 40px; padding: 0 14px; font-size: 13px; }
.link { background: none; border: 0; color: var(--cyan); font-size: 12px; cursor: pointer; padding: 6px 4px; min-height: 32px; }
.userbar { margin-top: 2px; }
.box { margin-top: 12px; padding: 10px 12px; background: var(--card); border: 1px solid var(--border); border-radius: 8px; }
.box h2 { font-size: 14px; margin: 0 0 6px; }
.box h3 { font-size: 13px; margin: 14px 0 6px; color: var(--muted); }
form.inline { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; margin-top: 8px; }
form.inline input { width: 140px; }
.box form:not(.inline) { display: flex; gap: 8px; flex-wrap: wrap; }
.box form:not(.inline) input, .box form:not(.inline) select { flex: 1 1 140px; width: auto; }
.urow { display: flex; justify-content: space-between; align-items: center; gap: 8px; padding: 6px 0; border-bottom: 1px solid var(--border); }
.uname { font-weight: 700; }
.ok { color: var(--green); } .bad { color: var(--red); }

/* ---- buoc 4b: tab, lenh, vi the, lich su ---- */
.tabs { display: flex; gap: 4px; margin-top: 8px; overflow-x: auto; }
.tab { flex: 1 0 auto; min-height: 40px; padding: 0 12px; background: var(--sub); color: var(--muted); border: 1px solid var(--border); border-radius: 6px; font-size: 13px; font-weight: 600; cursor: pointer; }
.tab.active { background: var(--blue); color: #fff; border-color: var(--blue); }
.h2 { font-size: 15px; margin: 0; }
.out { white-space: pre-wrap; word-break: break-word; font: 12px/1.5 ui-monospace, Menlo, Consolas, monospace; color: var(--cyan); margin: 8px 0; }
.linkbtn { display: inline-block; padding: 10px 14px; border: 1px solid var(--border); border-radius: 6px; color: var(--cyan); text-decoration: none; font-size: 13px; margin-top: 8px; }
.check { display: flex; align-items: center; gap: 6px; margin: 0; }
.check input { width: auto; min-height: 0; }
.btn-row { display: flex; gap: 8px; margin-top: 8px; flex-wrap: wrap; }
.btn-row .btn { width: auto; flex: 1 1 120px; }
.st { font-size: 11px; font-weight: 700; padding: 2px 8px; border-radius: 4px; background: var(--sub); color: var(--muted); }
.st.go { background: rgba(14,203,129,.15); color: var(--green); }
.st.wait { background: rgba(240,185,11,.15); color: var(--gold); }
.st.stop { background: rgba(246,70,93,.15); color: var(--red); }
.kv { display: grid; grid-template-columns: auto 1fr; gap: 2px 12px; font-size: 12px; margin-top: 6px; }
.kv .k { color: var(--muted); }
.confirm { margin-top: 8px; padding: 8px; border: 1px solid var(--gold); border-radius: 6px; font-size: 12px; }
.btn-order { margin-top: 8px; min-height: 40px; font-size: 13px; }
.warn { color: var(--gold); } .muted { color: var(--muted); }
.dline { font-size: 12px; margin: 3px 0; word-break: break-word; }