:root {
  color-scheme: light;
  --page: #f9f9f7;
  --surface: #fcfcfb;
  --text-1: #0b0b0b;
  --text-2: #52514e;
  --muted: #898781;
  --grid: #e1e0d9;
  --baseline: #c3c2b7;
  --border: rgba(11, 11, 11, 0.10);
  --series-1: #2a78d6;   /* xanh duong - equity/growth */
  --series-2: #eb6834;   /* cam - balance */
  --pos: #2a78d6;        /* cot duong (diverging blue) */
  --neg: #e34948;        /* cot am (diverging red) */
  --good-text: #006300;  /* chu delta tang */
  --bad-text: #d03b3b;   /* chu delta giam */
  --wash: rgba(42, 120, 214, 0.10);
  --brand: #a8871f;
}
:root[data-theme="dark"] {
  color-scheme: dark;
    --page: #0d0d0d;
    --surface: #1a1a19;
    --text-1: #ffffff;
    --text-2: #c3c2b7;
    --muted: #898781;
    --grid: #2c2c2a;
    --baseline: #383835;
    --border: rgba(255, 255, 255, 0.10);
    --series-1: #3987e5;
    --series-2: #d95926;
    --pos: #3987e5;
    --neg: #e66767;
    --good-text: #0ca30c;
    --bad-text: #e66767;
    --wash: rgba(57, 135, 229, 0.12);
    --brand: #e6c34c;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--page);
  color: var(--text-1);
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 14px;
  line-height: 1.5;
}
a { color: inherit; text-decoration: none; }

.topbar {
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}
.topbar-inner {
  max-width: 1140px;
  margin: 0 auto;
  padding: 14px 20px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.brand { display: flex; align-items: center; gap: 10px; }
.logo-img { width: 36px; height: 36px; display: block; }
.logo { font-size: 17px; font-weight: 700; }
.logo span { color: var(--brand); }

.nav { display: flex; gap: 4px; margin-left: 16px; }
.nav-link {
  padding: 6px 13px;
  border-radius: 999px;
  color: var(--text-2);
  font-size: 13.5px;
  white-space: nowrap;
}
.nav-link:hover { background: var(--wash); color: var(--text-1); }
.nav-link.active { background: var(--wash); color: var(--series-1); font-weight: 600; }
.top-actions { margin-left: auto; display: flex; align-items: center; gap: 8px; }

/* Cac nut chi admin thay duoc (server van chan them lan nua) */
.admin-only { display: none; }
body.is-admin .admin-only { display: inline-block; }
.theme-btn {
  background: none;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--text-2);
  font: inherit;
  font-size: 15px;
  line-height: 1;
  padding: 6px 10px;
  cursor: pointer;
}
.theme-btn:hover { background: var(--wash); }

.wrap { max-width: 1140px; margin: 0 auto; padding: 20px; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 18px 20px;
  margin-bottom: 18px;
}
.card h2 {
  margin: 0 0 12px;
  font-size: 15px;
  font-weight: 600;
}
.card .sub { color: var(--muted); font-size: 12.5px; margin: -8px 0 12px; }

/* ---- Stat tiles ---- */
.tiles {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 12px;
  margin-bottom: 18px;
}
.tile {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px 16px;
}
.tile .label { color: var(--text-2); font-size: 12.5px; }
.tile .value { font-size: 22px; font-weight: 600; margin-top: 2px; }
.tile .value.hero { font-size: 30px; }
.tile .delta { font-size: 12.5px; margin-top: 2px; }
.up { color: var(--good-text); }
.down { color: var(--bad-text); }

/* ---- Bang ---- */
table { width: 100%; border-collapse: collapse; }
th {
  text-align: left;
  color: var(--muted);
  font-size: 12px;
  font-weight: 500;
  padding: 8px 10px;
  border-bottom: 1px solid var(--grid);
  white-space: nowrap;
}
td {
  padding: 9px 10px;
  border-bottom: 1px solid var(--grid);
  white-space: nowrap;
}
tr:last-child td { border-bottom: none; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
tbody tr.click { cursor: pointer; }
tbody tr.click:hover { background: var(--wash); }

.acc-name { font-weight: 600; }
.acc-sub { color: var(--muted); font-size: 12px; }

.badge {
  display: inline-block;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 1px 9px;
  font-size: 11.5px;
  color: var(--text-2);
  margin-right: 4px;
  vertical-align: 1px;
}
.badge.live { border-color: var(--good-text); color: var(--good-text); }
.badge.copy { border-color: var(--series-2); color: var(--series-2); }

/* ---- Nut chung ---- */
.btn {
  border-radius: 999px;
  padding: 7px 18px;
  font: inherit;
  font-size: 13px;
  cursor: pointer;
  border: 1px solid var(--border);
  background: none;
  color: var(--text-2);
}
.btn:hover { background: var(--wash); }
.btn.primary { background: var(--series-1); border-color: var(--series-1); color: #fff; }
.btn.primary:hover { background: var(--series-1); opacity: 0.9; }
.btn.danger-text { color: var(--bad-text); border-color: transparent; }

.card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
}
.acc-actions { margin-left: auto; display: flex; gap: 8px; flex-wrap: wrap; }

/* ---- Modal + form ---- */
.modal-back {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  display: none;
  align-items: flex-start;
  justify-content: center;
  z-index: 40;
  overflow-y: auto;
  padding: 40px 16px;
}
.modal-back.open { display: flex; }
.modal {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px 22px;
  width: 100%;
  max-width: 600px;
}
.modal h3 { margin: 0 0 14px; font-size: 16px; }
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px 12px;
}
.form-grid .full { grid-column: 1 / -1; }
@media (max-width: 560px) { .form-grid { grid-template-columns: 1fr; } }
.field label {
  display: block;
  font-size: 12px;
  color: var(--text-2);
  margin-bottom: 3px;
}
.field input, .field select {
  width: 100%;
  background: var(--page);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-1);
  font: inherit;
  font-size: 13.5px;
  padding: 7px 10px;
}
.field input:focus, .field select:focus {
  outline: none;
  border-color: var(--series-1);
}
.check-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-2);
  cursor: pointer;
}
.check-row input { accent-color: var(--series-1); }
.copy-box {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 10px 12px;
}
.copy-box.hidden { display: none; }
@media (max-width: 560px) { .copy-box { grid-template-columns: 1fr; } }
.hint { font-size: 11.5px; color: var(--muted); margin-top: 4px; }
.hint a { color: var(--series-1); }
.modal-actions {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 10px;
  margin-top: 16px;
}
.form-error { color: var(--bad-text); font-size: 12.5px; margin-right: auto; }

/* ---- Chart ---- */
.chart-tabs { display: flex; gap: 6px; margin-bottom: 12px; flex-wrap: wrap; }
.chart-tabs button {
  background: none;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--text-2);
  font: inherit;
  font-size: 12.5px;
  padding: 4px 14px;
  cursor: pointer;
}
.chart-tabs button.active {
  background: var(--series-1);
  border-color: var(--series-1);
  color: #fff;
}
.viz-legend {
  display: flex;
  gap: 16px;
  margin-bottom: 8px;
  font-size: 12.5px;
  color: var(--text-2);
}
.viz-legend .key { display: flex; align-items: center; gap: 6px; }
.viz-legend .dot { width: 9px; height: 9px; border-radius: 50%; }
.viz-tooltip {
  position: fixed;
  z-index: 50;
  pointer-events: none;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.18);
  padding: 8px 11px;
  font-size: 12.5px;
  display: none;
  min-width: 130px;
}
.viz-tooltip .tt-title { color: var(--muted); font-size: 11.5px; margin-bottom: 4px; }
.viz-tooltip .tt-row {
  display: flex;
  align-items: center;
  gap: 6px;
  justify-content: space-between;
}
.viz-tooltip .tt-row .k { display: flex; align-items: center; gap: 6px; color: var(--text-2); }
.viz-tooltip .tt-row .v { font-variant-numeric: tabular-nums; font-weight: 600; }
.viz-tooltip .dot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; }

/* ---- Header trang chi tiet ---- */
.acc-head { display: flex; align-items: flex-start; gap: 14px; flex-wrap: wrap; margin-bottom: 16px; }
.acc-head h1 { margin: 0; font-size: 22px; }
.acc-head .meta { color: var(--muted); font-size: 12.5px; margin-top: 4px; }
.back { color: var(--muted); font-size: 13px; display: inline-block; margin-bottom: 10px; }
.back:hover { color: var(--text-1); }

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
@media (max-width: 800px) { .grid-2 { grid-template-columns: 1fr; } }

.more-btn {
  display: block;
  margin: 12px auto 0;
  background: none;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--text-2);
  font: inherit;
  font-size: 12.5px;
  padding: 5px 18px;
  cursor: pointer;
}
.more-btn:hover { background: var(--wash); }

.empty { color: var(--muted); text-align: center; padding: 18px 0; }
footer { color: var(--muted); font-size: 12px; text-align: center; padding: 10px 0 30px; }

/* ---- Tablet ---- */
@media (max-width: 768px) {
  .wrap { padding: 14px 12px; }
  .card { padding: 14px; }
  .tiles { gap: 10px; }
  .tile { padding: 12px 13px; }
  .tile .value { font-size: 19px; }
  .tile .value.hero { font-size: 25px; }
}

/* ---- Dien thoai ---- */
@media (max-width: 640px) {
  .topbar-inner { padding: 10px 12px; gap: 6px; }
  .logo { display: none; }  /* man nho: chi giu icon logo */
  .logo-img { width: 30px; height: 30px; }
  .nav { margin-left: 2px; }
  .nav-link { padding: 6px 10px; font-size: 12.5px; }
  #auth-btn { padding: 6px 12px; font-size: 12px; }

  .tiles { grid-template-columns: repeat(2, 1fr); gap: 8px; }
  .acc-head h1 { font-size: 19px; }
  .acc-actions { margin-left: 0; }
  th, td { padding: 8px 7px; }
  .modal-back { padding: 16px 10px; }
  .modal { padding: 16px; }

  /* Bang danh muc: chi giu Tai khoan / Nen tang / Gain / Equity */
  .acc-table th:nth-child(4), .acc-table td:nth-child(4),
  .acc-table th:nth-child(5), .acc-table td:nth-child(5),
  .acc-table th:nth-child(7), .acc-table td:nth-child(7),
  .acc-table th:nth-child(8), .acc-table td:nth-child(8) { display: none; }

  /* Lich su lenh: an Ticket / Mo luc / Pips */
  .trades-table th:nth-child(1), .trades-table td:nth-child(1),
  .trades-table th:nth-child(2), .trades-table td:nth-child(2),
  .trades-table th:nth-child(7), .trades-table td:nth-child(7) { display: none; }

  /* Lenh dang mo: an Ticket / Gia mo */
  .open-table th:nth-child(1), .open-table td:nth-child(1),
  .open-table th:nth-child(6), .open-table td:nth-child(6) { display: none; }
}