:root { --bg:#f7f6f2; --card:#fff; --ink:#1d1d1f; --muted:#6b6b70; --line:#e4e2dc; --gold:#b8860b; --gold2:#8a6508; --sup:#1b7a43; --res:#b3261e; --warn:#fff4d6; }
@media (prefers-color-scheme: dark) { :root { --bg:#141416; --card:#1e1e22; --ink:#ececf0; --muted:#9a9aa3; --line:#2e2e34; --gold:#e0b44c; --gold2:#f0c96a; --sup:#5bc58a; --res:#ef7a72; --warn:#3a3220; } }
* { box-sizing:border-box; }
body { margin:0; background:var(--bg); color:var(--ink); font:16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
a { color:var(--gold2); }
main { max-width:960px; margin:0 auto; padding:16px; }
.top { display:flex; flex-wrap:wrap; align-items:center; gap:12px 20px; padding:12px 16px; background:var(--card); border-bottom:1px solid var(--line); }
.logo { font-weight:700; color:var(--gold); text-decoration:none; font-size:18px; }
.top nav { display:flex; gap:16px; flex:1; }
.top nav a, .acc a { text-decoration:none; color:var(--ink); }
.acc { display:flex; gap:12px; align-items:center; }
.btn { display:inline-block; background:var(--gold); color:#fff !important; border:0; border-radius:8px; padding:8px 16px; font-size:15px; cursor:pointer; text-decoration:none; }
.btn.big { padding:12px 22px; font-size:17px; }
button.link { background:none; border:0; color:var(--gold2); cursor:pointer; font-size:15px; padding:0; }
.inline { display:inline; }
.muted { color:var(--muted); } .small { font-size:14px; }
.card { background:var(--card); border:1px solid var(--line); border-radius:12px; padding:16px 18px; margin:12px 0; }
.card.empty { text-align:center; color:var(--muted); }
.card-head { display:flex; justify-content:space-between; flex-wrap:wrap; gap:8px; border-bottom:1px solid var(--line); padding-bottom:8px; margin-bottom:8px; }
.tag { background:var(--gold); color:#fff; border-radius:6px; padding:1px 8px; font-size:13px; }
.badge { border:1px solid var(--muted); color:var(--muted); border-radius:10px; padding:0 8px; font-size:12px; }
.warn { background:var(--warn); border-radius:8px; padding:6px 10px; margin:6px 0; }
.err { background:#fde8e6; color:#8c1d18; border-radius:8px; padding:8px 12px; margin:8px 0; }
.zones { list-style:none; padding-left:0; } .zones li { padding:2px 0 2px 10px; border-left:4px solid var(--line); margin:4px 0; }
.zones li.sup { border-color:var(--sup); } .zones li.res { border-color:var(--res); }
.tabs { display:flex; gap:8px; margin:8px 0; } .tabs a { padding:6px 14px; border-radius:8px; border:1px solid var(--line); text-decoration:none; color:var(--ink); }
.tabs a.on { background:var(--gold); color:#fff; border-color:var(--gold); }
.tabs.sub a { padding:4px 12px; font-size:14px; }
.trial { background:var(--warn); border-radius:8px; padding:8px 12px; margin:8px 0; }
.locked { position:relative; }
.card.blur { filter:blur(6px); user-select:none; pointer-events:none; }
.locked-box { position:absolute; inset:0; display:flex; flex-direction:column; align-items:center; justify-content:center; text-align:center;
  background:color-mix(in srgb, var(--bg) 55%, transparent); border-radius:12px; padding:16px; }
.hero { padding:24px 0 8px; } .lead { font-size:18px; }
.grid3 { display:grid; grid-template-columns:repeat(auto-fit, minmax(240px, 1fr)); gap:12px; }
.form-box { max-width:420px; margin:24px auto; }
.form-box label { display:block; margin:10px 0; }
.form-box input[type=email], .form-box input[type=password], .form-box input[type=text] { display:block; width:100%; padding:9px 10px; margin-top:4px; border:1px solid var(--line); border-radius:8px; background:var(--card); color:var(--ink); font-size:16px; }
.form-box .check { font-size:14px; }
.tbl { width:100%; border-collapse:collapse; background:var(--card); font-size:15px; }
.tbl th, .tbl td { border-bottom:1px solid var(--line); padding:6px 8px; text-align:left; vertical-align:top; }
.filter { display:flex; gap:8px; flex-wrap:wrap; } .filter select { padding:6px; border-radius:8px; border:1px solid var(--line); background:var(--card); color:var(--ink); }
details.hist { background:var(--card); border:1px solid var(--line); border-radius:10px; margin:6px 0; padding:6px 12px; }
details.hist summary { cursor:pointer; }
.prose li { margin:8px 0; }
.about h2 { margin-top:28px; } .steps { display:grid; gap:10px; }
.step { display:flex; gap:14px; background:var(--card); border:1px solid var(--line); border-radius:12px; padding:12px 16px; }
.step .num { flex:0 0 34px; height:34px; border-radius:50%; background:var(--gold); color:#fff; font-weight:700; display:flex; align-items:center; justify-content:center; }
.step h3 { margin:4px 0; font-size:17px; } .step p { margin:4px 0; }
.contact { margin-top:24px; } .contact h2 { margin-top:0; }
.grid2 { display:grid; grid-template-columns:repeat(auto-fit, minmax(260px, 1fr)); gap:12px; }
details.full { margin-top:12px; border-top:1px solid var(--line); padding-top:8px; }
details.full summary { cursor:pointer; font-weight:600; color:var(--gold2); }
/* 24/10 (anh): câu miễn trừ chữ TO đầu trang */
.disclaimer-top { background:#b3261e; color:#fff; text-align:center; font-weight:700; font-size:18px; letter-spacing:.2px; padding:10px 16px; }
details.full .note.big { font-size:17px; font-weight:700; }
details.full .note { background:var(--warn); border-radius:8px; padding:6px 10px; margin:8px 0; font-size:14px; }
.md { font-size:15px; overflow-wrap:anywhere; } .md h4 { margin:14px 0 6px; } .md p { margin:6px 0; } .md ul { margin:4px 0; padding-left:20px; }
.md li.sub { margin-left:18px; list-style:circle; }
footer { max-width:960px; margin:24px auto; padding:16px; border-top:1px solid var(--line); font-size:14px; color:var(--muted); }
@media (max-width:600px) { .top nav { order:3; width:100%; } .tbl { font-size:13px; } }

/* ===== 24/10 thiết kế lại thẻ phân tích (anh: "GUI chưa đẹp, nhìn rối") ===== */
:root { --up:#14804a; --up-bg:#e7f6ee; --down:#c0352b; --down-bg:#fdecea; --flat:#6b6b70; --flat-bg:#efeee9; }
@media (prefers-color-scheme: dark) { :root { --up:#5bc58a; --up-bg:#16301f; --down:#ef7a72; --down-bg:#3a1d1b; --flat:#a3a3ad; --flat-bg:#26262b; } }
.pt { background:var(--card); border:1px solid var(--line); border-radius:16px; padding:18px 20px; margin:14px 0; box-shadow:0 1px 3px rgba(0,0,0,.05); }
.pt section { margin-top:18px; }
.pt-top { display:flex; justify-content:space-between; align-items:flex-start; gap:12px; flex-wrap:wrap; border-bottom:1px solid var(--line); padding-bottom:14px; }
.pt-meta { font-size:13px; font-weight:600; letter-spacing:.4px; text-transform:uppercase; color:var(--gold2); }
.pt-price { font-size:34px; font-weight:800; line-height:1.15; font-variant-numeric:tabular-nums; }
.pt-time { font-size:13px; color:var(--muted); }
.pill { display:inline-flex; align-items:center; gap:6px; border-radius:999px; padding:5px 12px; font-size:13px; font-weight:600; white-space:nowrap; }
.pill.live { background:var(--up-bg); color:var(--up); } .pill.live i { width:8px; height:8px; border-radius:50%; background:var(--up); animation:nhay 1.6s infinite; }
.pill.stop { background:var(--warn); color:var(--ink); }
@keyframes nhay { 50% { opacity:.25; } }
h3.sec { font-size:13px; font-weight:700; letter-spacing:.5px; text-transform:uppercase; color:var(--muted); margin:0 0 8px; }
.xu-row { display:grid; grid-template-columns:repeat(5, 1fr); gap:8px; }
.xu { border-radius:10px; padding:8px 6px; text-align:center; }
.xu span { display:block; font-size:12px; font-weight:700; opacity:.75; } .xu b { display:block; font-size:14px; white-space:nowrap; }
.xu.up { background:var(--up-bg); color:var(--up); } .xu.down { background:var(--down-bg); color:var(--down); } .xu.flat { background:var(--flat-bg); color:var(--flat); }
.box { background:var(--bg); border-radius:12px; padding:12px 14px; }
.box.read { border-left:4px solid var(--gold); font-size:16px; line-height:1.65; }
.ladder { position:relative; height:230px; background:var(--bg); border-radius:12px; margin-right:4px; overflow:hidden; }
.lz { position:absolute; left:10px; right:10px; border-radius:8px; display:flex; align-items:center; justify-content:space-between; gap:8px; padding:0 10px; min-height:26px; font-size:14px; }
.lz.res { background:var(--down-bg); color:var(--down); border:1px solid var(--down); }
.lz.sup { background:var(--up-bg); color:var(--up); border:1px solid var(--up); }
.lz.trong { background:var(--warn); color:var(--ink); border:1px solid var(--gold); }
.lz-name { font-weight:700; } .lz-val { font-variant-numeric:tabular-nums; } .lz-val em { font-style:normal; opacity:.7; font-size:12px; }
.lp { position:absolute; left:0; right:0; border-top:2px dashed var(--ink); z-index:2; }
.lp span { position:absolute; left:50%; transform:translate(-50%, -50%); background:var(--ink); color:var(--card); border-radius:999px; padding:2px 10px; font-size:13px; font-weight:700; white-space:nowrap; }
.kb-grid { display:grid; grid-template-columns:repeat(auto-fit, minmax(230px, 1fr)); gap:10px; }
.kb { border-radius:12px; padding:12px 14px; border:1px solid var(--line); }
.kb.up { background:var(--up-bg); border-color:var(--up); } .kb.down { background:var(--down-bg); border-color:var(--down); }
.kb-h { font-weight:800; margin-bottom:6px; } .kb.up .kb-h { color:var(--up); } .kb.down .kb-h { color:var(--down); }
.kb dl { display:grid; grid-template-columns:auto auto; gap:4px 12px; margin:0; font-size:14px; }
.kb dt { color:var(--muted); } .kb dd { margin:0; text-align:right; font-weight:700; font-variant-numeric:tabular-nums; }
.tagx { font-size:11px; font-weight:700; border-radius:6px; padding:1px 6px; background:var(--card); }
.ngay { display:grid; gap:6px; } .ngay div { background:var(--bg); border-radius:10px; padding:8px 12px; font-size:14px; }
.pt details.full { margin-top:18px; }
.pt.blur { filter:blur(6px); user-select:none; pointer-events:none; }
.mk-tabs { display:flex; flex-wrap:wrap; gap:10px; align-items:center; margin:6px 0 4px; }
.seg { display:inline-flex; background:var(--card); border:1px solid var(--line); border-radius:12px; padding:3px; }
.seg a { padding:7px 16px; border-radius:9px; text-decoration:none; color:var(--ink); font-weight:600; font-size:15px; }
.seg a.on { background:var(--gold); color:#fff; }
@media (max-width:600px) { .xu-row { grid-template-columns:repeat(3, 1fr); } .pt-price { font-size:28px; } .ladder { height:260px; } .lz { font-size:12px; } }
/* 24/10: chống tràn ngang trên điện thoại */
html, body { max-width:100%; overflow-x:hidden; }
main, .pt, .pt section, .box, .ladder, .kb, .xu { min-width:0; }
.kb-grid { grid-template-columns:repeat(auto-fit, minmax(min(230px, 100%), 1fr)); }
.grid3 { grid-template-columns:repeat(auto-fit, minmax(min(240px, 100%), 1fr)); }
.grid2 { grid-template-columns:repeat(auto-fit, minmax(min(260px, 100%), 1fr)); }
.pill { white-space:normal; }
@media (max-width:600px) {
  main { padding:12px; } .pt { padding:14px 12px; }
  .xu b { font-size:12px; white-space:normal; }
  .lz { flex-wrap:wrap; padding:2px 8px; } .lz-val { font-size:12px; }
  .disclaimer-top { font-size:15px; padding:8px 12px; }
  .seg a { padding:6px 12px; }
}