/* Giao diện nhẹ, màu dịu, kiểu bảng điều khiển tài chính. Màu và cỡ chữ đặt thành biến ở :root để đổi một chỗ. */
:root {
  --bg: #f3f6fb; --panel: #ffffff; --soft: #f7f9fd; --text: #1f2a3d; --muted: #66748a; --line: #e3e9f2;
  --accent: #2f6fb3; --accent-ink: #ffffff; --accent-soft: #e8f1fb; --teal: #2a9d8f;
  --ok: #1f7a5f; --ok-bg: #e5f4ee; --bad: #b8433e; --bad-bg: #fbeae9;
  --wait: #6551b8; --wait-bg: #edeafa; --warn: #98650a; --warn-bg: #fcf1d9; --na-bg: #eef1f6;
  --shadow: 0 1px 2px rgba(31, 42, 61, .05), 0 6px 20px rgba(31, 42, 61, .06);
  --radius: 14px; --radius-sm: 10px;
  --font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-head: "Plus Jakarta Sans", "Inter", system-ui, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f141c; --panel: #171e29; --soft: #1b2331; --text: #e4e9f1; --muted: #94a0b3; --line: #263040;
    --accent: #7db0ea; --accent-ink: #0f141c; --accent-soft: #1e2d42; --teal: #55c2b4;
    --ok: #5cc9a3; --ok-bg: #16322a; --bad: #f08a85; --bad-bg: #3a2022;
    --wait: #b3a6f0; --wait-bg: #2a2547; --warn: #e3b559; --warn-bg: #382d14; --na-bg: #212a38;
    --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 6px 20px rgba(0, 0, 0, .25);
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; min-height: 100vh; display: flex; flex-direction: column;
  background: var(--bg); color: var(--text); font: 14.5px/1.55 var(--font);
}
a { color: var(--accent); text-underline-offset: 2px; }
h1, h2, h3, .brand-name { font-family: var(--font-head); letter-spacing: -.01em; }
h1 { font-size: 24px; margin: 18px 0 8px; font-weight: 700; }
h2 { font-size: 17px; margin: 0 0 10px; font-weight: 650; }
h3 { font-size: 14px; margin: 16px 0 6px; font-weight: 650; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }

/* ---------------------------------------------------------------- đầu trang, chân trang */
.site-header {
  position: sticky; top: 0; z-index: 30;
  background: color-mix(in srgb, var(--panel) 86%, transparent); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.wrap { max-width: 1440px; margin: 0 auto; padding: 0 20px; }
.header-row { display: flex; align-items: center; gap: 24px; min-height: 60px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--text); }
.brand-mark { width: 34px; height: 34px; flex: none; }
.brand-name { font-size: 17px; font-weight: 700; line-height: 1.1; }
.brand-sub { display: block; font: 500 11px/1.2 var(--font); color: var(--muted); letter-spacing: 0; }
.data-pill { display: inline-flex; align-items: center; gap: 6px; padding: 3px 11px; border-radius: 999px; font-size: 12px; font-weight: 600; white-space: nowrap; text-decoration: none; color: var(--ok); background: var(--ok-bg); }
.data-pill::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.data-pill.behind { color: var(--warn); background: var(--warn-bg); }
.data-pill.stale { color: var(--bad); background: var(--bad-bg); }
.data-pill.empty { color: var(--muted); background: var(--na-bg); }
.data-pill:hover { filter: brightness(0.97); }
.site-nav { display: flex; gap: 4px; margin-left: auto; }
.site-nav a {
  text-decoration: none; color: var(--muted); font-weight: 550; padding: 7px 14px; border-radius: 999px;
  transition: background .15s, color .15s;
}
.site-nav a:hover { background: var(--accent-soft); color: var(--accent); }
.site-nav a[aria-current] { background: var(--accent-soft); color: var(--accent); }

main.wrap { flex: 1; width: 100%; padding-top: 6px; padding-bottom: 48px; }

.site-footer { border-top: 1px solid var(--line); background: var(--panel); color: var(--muted); font-size: 13px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1.6fr; gap: 28px; padding: 28px 20px 20px; }
.site-footer h4 { margin: 0 0 8px; font: 650 12px/1.2 var(--font-head); text-transform: uppercase; letter-spacing: .06em; color: var(--text); }
.site-footer p { margin: 0 0 6px; }
.site-footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 4px; }
.site-footer a { color: var(--muted); text-decoration: none; }
.site-footer a:hover { color: var(--accent); text-decoration: underline; }
.footer-brand { display: flex; align-items: center; gap: 10px; color: var(--text); margin-bottom: 8px; }
.footer-base { border-top: 1px solid var(--line); padding: 12px 20px; display: flex; flex-wrap: wrap; gap: 4px 16px; justify-content: space-between; font-size: 12px; }

/* ---------------------------------------------------------------- khối nội dung */
.bar, main section:not(.actions), .scroll, .stock-head, .error {
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow);
}
.bar { display: flex; flex-wrap: wrap; gap: 12px 16px; align-items: end; margin: 14px 0; padding: 14px 16px; }
main section:not(.actions) { margin: 14px 0; padding: 16px 18px; }
main section .scroll { border: 1px solid var(--line); box-shadow: none; border-radius: var(--radius-sm); }
.bar label, section label { display: flex; flex-direction: column; gap: 4px; color: var(--muted); font-size: 12px; font-weight: 550; }
fieldset { border: 1px solid var(--line); border-radius: var(--radius-sm); display: flex; flex-wrap: wrap; gap: 6px 14px; padding: 6px 12px; margin: 0; }
legend { color: var(--muted); font-size: 12px; font-weight: 550; padding: 0 4px; }
fieldset label { flex-direction: row; align-items: center; gap: 6px; color: var(--text); font-size: 13px; font-weight: 450; }
input, select, textarea, button {
  font: inherit; color: var(--text); background: var(--panel); border: 1px solid var(--line);
  border-radius: var(--radius-sm); padding: 7px 10px; min-height: 36px;
}
input[type=checkbox] { min-height: 0; width: 16px; height: 16px; accent-color: var(--accent); padding: 0; }
input:focus, select:focus, textarea:focus { outline: 2px solid color-mix(in srgb, var(--accent) 45%, transparent); border-color: var(--accent); }
button {
  cursor: pointer; background: var(--accent); color: var(--accent-ink); border-color: var(--accent); font-weight: 600;
  transition: filter .15s, transform .1s;
}
button:hover:not(:disabled) { filter: brightness(1.07); }
button:active:not(:disabled) { transform: translateY(1px); }
button:disabled { opacity: .5; cursor: not-allowed; }
button.danger { background: var(--bad); border-color: var(--bad); color: #fff; }
progress { width: 220px; max-width: 100%; height: 10px; accent-color: var(--accent); vertical-align: middle; }

/* ---------------------------------------------------------------- ô tổng quan (đồng thời là chuyển chế độ xem) */
.tabs { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin: 14px 0 6px; perspective: 900px; }
.tabs a {
  --rx: 0deg; --ry: 0deg;
  display: flex; flex-direction: column; gap: 2px; padding: 14px 16px; text-decoration: none; color: var(--muted); font-weight: 550;
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow);
  transform: rotateX(var(--rx)) rotateY(var(--ry)); transition: transform .15s ease-out, border-color .15s, background .15s;
  position: relative; overflow: hidden;
}
.tabs a::after { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 4px; background: var(--line); }
.tabs a:nth-child(1)::after { background: var(--ok); } .tabs a:nth-child(2)::after { background: var(--teal); }
.tabs a:nth-child(3)::after { background: var(--wait); } .tabs a:nth-child(4)::after { background: var(--accent); }
.tabs a:hover { border-color: var(--accent); }
.tabs a[aria-current] { background: var(--accent-soft); border-color: var(--accent); color: var(--text); }
.count { order: -1; font: 700 28px/1.15 var(--font-head); color: var(--text); font-variant-numeric: tabular-nums; margin: 0; background: none; padding: 0; }

.derived { display: flex; flex-wrap: wrap; gap: 6px 10px; margin: 12px 0 6px; align-items: center; }
.derived span { background: var(--panel); border: 1px solid var(--line); border-radius: 999px; padding: 3px 12px; font-size: 13px; }
.derived span.muted { background: none; border: 0; padding-left: 0; }
.muted { color: var(--muted); } .small { font-size: 12.5px; }

/* ---------------------------------------------------------------- bảng */
.scroll { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; }
th, td { padding: 10px 12px; text-align: left; vertical-align: top; border-bottom: 1px solid var(--line); }
tbody tr:last-child td { border-bottom: 0; }
tbody tr:hover { background: var(--soft); }
th { background: var(--soft); white-space: nowrap; font-size: 12px; font-weight: 650; color: var(--muted); letter-spacing: .01em; }
th a { color: var(--muted); text-decoration: none; }
th a:hover { color: var(--accent); }
th[aria-sort] a { color: var(--accent); }
.r { text-align: right; font-variant-numeric: tabular-nums; }
td.notes { min-width: 280px; font-size: 12.5px; color: var(--muted); }
td.notes div + div { margin-top: 3px; }
td.ind { font-size: 12.5px; color: var(--muted); min-width: 120px; }
.sym { font: 700 14px var(--font-head); text-decoration: none; }
.sym:hover { text-decoration: underline; }

/* huy hiệu: nền nhạt, chữ đậm hơn một bậc */
.badge { display: inline-flex; align-items: center; gap: 5px; padding: 2px 10px; border-radius: 999px; font-size: 12px; font-weight: 600; white-space: nowrap; background: var(--na-bg); color: var(--muted); }
.badge::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.badge.NHÓM_1, .badge.NHÓM_2, .badge.st-ĐẠT { color: var(--ok); background: var(--ok-bg); }
.badge.CHỜ, .badge.st-CHỜ { color: var(--wait); background: var(--wait-bg); }
.badge.XEM_THỦ_CÔNG, .badge.st-ĐẠT_CÓ_CẢNH_BÁO, .badge.st-XEM_THỦ_CÔNG { color: var(--warn); background: var(--warn-bg); }
.badge.LOẠI, .badge.st-TRƯỢT, .badge.st-LOẠI { color: var(--bad); background: var(--bad-bg); }
.badge.st-NA { color: var(--muted); background: var(--na-bg); }

.pager { display: flex; flex-wrap: wrap; gap: 6px; margin: 14px 0; }
.pager a { padding: 4px 12px; border: 1px solid var(--line); border-radius: 999px; text-decoration: none; background: var(--panel); }
.pager a[aria-current] { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.error { color: var(--bad); border-color: color-mix(in srgb, var(--bad) 50%, var(--line)); background: var(--bad-bg); padding: 10px 14px; margin: 12px 0; box-shadow: none; }
.notice { color: var(--ok); font-weight: 550; }
.empty { padding: 36px 20px; text-align: center; color: var(--muted); background: var(--panel); border: 1px dashed var(--line); border-radius: var(--radius); }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 10px 18px; margin-top: 8px; }
.inp { display: flex; align-items: center; gap: 6px; color: var(--text); font-weight: 450; }
.rules td.fields { display: flex; flex-wrap: wrap; gap: 8px 16px; border-bottom: 0; }
.actions { display: flex; flex-wrap: wrap; gap: 10px; align-items: end; position: sticky; bottom: 0; background: color-mix(in srgb, var(--bg) 92%, transparent); backdrop-filter: blur(8px); padding: 12px 0; border-top: 1px solid var(--line); z-index: 5; }
pre { background: var(--soft); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 10px 14px; overflow-x: auto; font-size: 12.5px; }
pre.log { max-height: 24em; overflow: auto; }

/* ---------------------------------------------------------------- trang chi tiết một mã */
.stock-head { padding: 18px 20px; margin: 10px 0 14px; }
.stock-head h1 { display: flex; flex-wrap: wrap; gap: 10px; align-items: baseline; margin-top: 0; }
.facts { display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); gap: 12px 18px; margin: 12px 0; }
.facts dt { color: var(--muted); font-size: 12px; font-weight: 550; } .facts dd { margin: 0; font-weight: 650; }
.fresh { display: flex; flex-wrap: wrap; gap: 4px 18px; }
.reminder { border-left: 3px solid var(--warn); background: var(--warn-bg); border-radius: 0 var(--radius-sm) var(--radius-sm) 0; padding: 8px 12px; margin: 10px 0 0; }
.warn-text { color: var(--warn); } .ok-text { color: var(--ok); }
.crit td { min-width: 120px; } .crit td.why { min-width: 260px; }
.alt { color: var(--muted); } .note { color: var(--warn); }
.chip { display: inline-block; padding: 0 8px; margin: 2px 4px 0 0; background: var(--warn-bg); color: var(--warn); border-radius: 999px; font-size: 11px; font-weight: 600; }
details summary { cursor: pointer; color: var(--accent); font-weight: 550; }
.cols { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 8px 28px; }
.note-text { white-space: pre-wrap; }
.manual { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 12px 18px; }
.manual .wide { grid-column: 1 / -1; }

/* ---------------------------------------------------------------- tiêu chí áp dụng ở trang danh sách */
details.tcs { flex-basis: 100%; }
.tc-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(17em, 1fr)); gap: 6px 16px; margin: 10px 0 6px; }
.tc-grid label { flex-direction: row; align-items: baseline; gap: 6px; font-size: 13px; color: var(--text); font-weight: 450; background: var(--soft); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 6px 10px; }

/* ---------------------------------------------------------------- mã TC có giải thích khi rê chuột */
.tc { cursor: help; border-bottom: 1px dotted currentColor; border-radius: 3px; transition: background .12s; }
.tc:hover, .tc:focus-visible { background: var(--accent-soft); }
#tc-pop, #chart-pop {
  position: fixed; z-index: 100; left: 0; top: 0; width: min(380px, calc(100vw - 16px)); pointer-events: none;
  background: var(--panel); color: var(--text); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 16px;
  box-shadow: 0 10px 40px rgba(20, 30, 50, .22); font-size: 13px; line-height: 1.5;
  max-height: calc(100vh - 16px); overflow: hidden;
  opacity: 0; visibility: hidden; transform: translateY(4px); transition: opacity .12s, transform .12s, visibility .12s;
}
#tc-pop.show, #chart-pop.show { opacity: 1; visibility: visible; transform: none; }
:is(#tc-pop, #chart-pop) .pop-head { display: flex; align-items: baseline; gap: 8px; flex-wrap: wrap; margin-bottom: 8px; }
:is(#tc-pop, #chart-pop) .pop-id { font: 700 15px var(--font-head); color: var(--accent); }
:is(#tc-pop, #chart-pop) .pop-name { font: 650 15px var(--font-head); }
:is(#tc-pop, #chart-pop) .pop-family { margin-left: auto; font-size: 11px; font-weight: 600; background: var(--accent-soft); color: var(--accent); border-radius: 999px; padding: 1px 9px; }
#tc-pop .pop-label { margin: 10px 0 2px; font-size: 11px; font-weight: 650; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); }
#tc-pop p { margin: 0; }
#tc-pop .pop-group { margin-top: 6px; padding: 7px 10px; background: var(--soft); border-radius: var(--radius-sm); }
#tc-pop .pop-group b { font-weight: 650; }
#tc-pop .pop-group.off { opacity: .6; }
#tc-pop .pop-sev { color: var(--muted); font-size: 12px; }
#tc-pop ul { margin: 3px 0 0; padding-left: 16px; }
:is(#tc-pop, #chart-pop) .pop-tip { margin-top: 10px; font-size: 11.5px; color: var(--muted); }

/* ---------------------------------------------------------------- điện thoại và máy tính bảng */
.m-sort { display: none; }
@media (max-width: 900px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid > :first-child { grid-column: 1 / -1; }
  .tabs { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 760px) {
  body { font-size: 14px; }
  .wrap { padding: 0 14px; }
  .header-row { flex-wrap: wrap; gap: 4px 12px; padding: 8px 0 6px; }
  .site-nav { width: 100%; margin-left: 0; }
  .site-nav a { flex: 1; text-align: center; padding: 7px 8px; }
  .brand-sub { display: none; }
  h1 { font-size: 21px; }
  .bar { padding: 12px; }
  .bar > label, .bar > label select, .bar > label input { width: 100%; }
  .bar > label { flex: 1 1 140px; }
  .footer-grid { grid-template-columns: 1fr; padding: 22px 14px 14px; }
  .footer-base { padding: 12px 14px; }
  main section:not(.actions) { padding: 14px; }

  /* bảng danh sách thành thẻ, mỗi mã một thẻ */
  .m-sort { display: flex; gap: 6px; overflow-x: auto; padding: 4px 0 8px; align-items: center; white-space: nowrap; }
  .m-sort a { padding: 4px 12px; border: 1px solid var(--line); border-radius: 999px; background: var(--panel); text-decoration: none; font-size: 12.5px; color: var(--muted); }
  .m-sort a[aria-current] { background: var(--accent-soft); color: var(--accent); border-color: var(--accent); }
  .scroll.cards { overflow: visible; background: none; border: 0; box-shadow: none; }
  table.stocks, table.stocks tbody { display: block; }
  table.stocks thead { display: none; }
  table.stocks tr {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px 12px; padding: 14px; margin-bottom: 10px;
    background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow);
  }
  table.stocks tr:hover { background: var(--panel); }
  table.stocks td { display: block; padding: 0; border: 0; text-align: left; min-width: 0; }
  table.stocks td[data-label]::before { content: attr(data-label); display: block; font-size: 11px; color: var(--muted); font-weight: 550; }
  table.stocks td.r { text-align: left; }
  table.stocks td.c-symbol { grid-column: 1 / 3; grid-row: 1; }
  table.stocks td.c-symbol .sym { font-size: 18px; }
  table.stocks td.c-label { grid-column: 3; grid-row: 1; text-align: right; }
  table.stocks td.c-ind { grid-column: span 2; }
  table.stocks td.notes { grid-column: 1 / -1; min-width: 0; padding-top: 8px; border-top: 1px dashed var(--line); }
  table.stocks td.notes.none { display: none; }
  table.stocks td.notes::before { margin-bottom: 2px; }

  #tc-pop, #chart-pop { width: calc(100vw - 16px); }
  table.stocks td.c-chart { grid-column: 1 / -1; }
}
@media (max-width: 420px) {
  .tabs { gap: 8px; }
  .tabs a { padding: 10px 12px; }
  .count { font-size: 24px; }
}
@media (prefers-reduced-motion: reduce) {
  .tabs a, #tc-pop, button, .site-nav a { transition: none; }
  .tabs a { transform: none !important; }
}

/* ---------------------------------------------------------------- trang chi tiết: lưới tổng quan và tab nhóm */
.ov-sum { display: flex; flex-wrap: wrap; gap: 6px 24px; margin: 6px 0 12px; }
.ov-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(132px, 1fr)); gap: 10px; }
.tile { display: flex; flex-direction: column; gap: 2px; padding: 9px 10px 10px; background: var(--soft); border: 1px solid var(--line); border-radius: var(--radius-sm); cursor: help; transition: border-color .12s, box-shadow .12s; }
.tile:hover, .tile:focus-within { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.tile-id { font: 700 14px var(--font-head); }
.tile-name { font-size: 12px; color: var(--muted); line-height: 1.3; min-height: 2.6em; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.tile-halves { display: grid; grid-template-columns: 1fr 1fr; gap: 4px; margin-top: 6px; }
.half { display: flex; align-items: center; justify-content: space-between; gap: 4px; padding: 4px 7px; border-radius: 7px; font-size: 13px; font-weight: 700; text-decoration: none; }
.half b { font-size: 10.5px; font-weight: 650; opacity: .8; }
.half:hover { filter: brightness(.95); }
.key { display: inline-block; min-width: 22px; text-align: center; border-radius: 6px; padding: 0 5px; font-style: normal; font-weight: 700; }
:is(.half, .key).st-ĐẠT { color: var(--ok); background: var(--ok-bg); }
:is(.half, .key).st-ĐẠT_CÓ_CẢNH_BÁO, :is(.half, .key).st-XEM_THỦ_CÔNG { color: var(--warn); background: var(--warn-bg); }
:is(.half, .key).st-CHỜ { color: var(--wait); background: var(--wait-bg); }
:is(.half, .key).st-TRƯỢT { color: var(--bad); background: var(--bad-bg); }
:is(.half, .key).st-LOẠI { color: var(--panel); background: var(--bad); }
:is(.half, .key).st-NA { color: var(--muted); background: var(--na-bg); }
.ov-legend { display: flex; flex-wrap: wrap; gap: 6px 16px; margin: 12px 0 0; }

.group-tabs { display: flex; gap: 6px; border-bottom: 1px solid var(--line); margin: 4px 0 12px; }
.group-tabs button { display: inline-flex; align-items: center; gap: 8px; margin-bottom: -1px; padding: 8px 16px; background: transparent; color: var(--muted); font-weight: 650; border: 1px solid transparent; border-bottom: 0; border-radius: var(--radius-sm) var(--radius-sm) 0 0; }
.group-tabs button:hover:not(:disabled) { filter: none; color: var(--text); background: var(--accent-soft); }
.group-tabs button[aria-selected="true"] { color: var(--text); background: var(--panel); border-color: var(--line); border-bottom: 1px solid var(--panel); }
[role="tabpanel"][hidden] { display: none; }
tr.flash td { animation: row-flash 1.8s ease-out; }
@keyframes row-flash { from { background: var(--accent-soft); } to { background: transparent; } }

#tc-pop .pop-now { margin: 0 0 4px; padding: 8px 10px; background: var(--accent-soft); border-radius: var(--radius-sm); }
#tc-pop .pop-now .pop-label { margin-top: 0; }
#tc-pop .pop-value { font: 700 15px var(--font-head); }
#tc-pop .pop-period { font: 450 12px var(--font); color: var(--muted); }
#tc-pop .pop-res { display: flex; gap: 6px; align-items: baseline; margin-top: 4px; }
#tc-pop .pop-res .badge { flex: none; }
@media (max-width: 760px) {
  .ov-grid { grid-template-columns: repeat(3, 1fr); gap: 8px; }
  .group-tabs button { flex: 1; justify-content: center; padding: 8px 10px; }
}
@media (max-width: 420px) {
  .ov-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (prefers-reduced-motion: reduce) {
  tr.flash td { animation: none; }
  .tile { transition: none; }
}

/* ---------------------------------------------------------------- biểu đồ giá ở danh sách */
.c-chart { min-width: 150px; }
.spark { display: inline-flex; flex-direction: column; gap: 3px; padding: 3px 4px; border-radius: 8px; cursor: crosshair; }
.spark:hover, .spark:focus-visible { background: var(--accent-soft); }
.spark svg { display: block; width: 120px; height: 28px; overflow: visible; }
.spark path { fill: none; stroke-linecap: round; stroke-linejoin: round; vector-effect: non-scaling-stroke; }
.spark .l12 { stroke: var(--muted); stroke-width: 1.2; opacity: .5; }
.spark .l6 { stroke: var(--accent); stroke-width: 1.6; opacity: .8; }
.spark .l3 { stroke: var(--muted); stroke-width: 2.2; }
.spark.up .l3 { stroke: var(--ok); } .spark.down .l3 { stroke: var(--bad); }
.spark .chg { display: flex; gap: 8px; font-size: 11px; font-variant-numeric: tabular-nums; white-space: nowrap; }
.spark .chg i { font-style: normal; font-weight: 600; color: var(--muted); }
.spark .chg .up { color: var(--ok); } .spark .chg .down { color: var(--bad); } .spark .chg .na, .spark .chg .flat { color: var(--muted); }
#chart-pop { width: min(380px, calc(100vw - 16px)); }
#chart-pop .c-win { display: flex; justify-content: space-between; align-items: baseline; margin-top: 10px; }
:is(#chart-pop, #price-chart) .chg-up { color: var(--ok); font-weight: 700; } :is(#chart-pop, #price-chart) .chg-down { color: var(--bad); font-weight: 700; } :is(#chart-pop, #price-chart) :is(.chg-na, .chg-flat) { color: var(--muted); font-weight: 700; }
:is(#chart-pop, #price-chart) .chart { display: block; width: 100%; height: auto; margin-top: 2px; }
:is(#chart-pop, #price-chart) .c-area { fill: var(--accent-soft); }
:is(#chart-pop, #price-chart) .c-line { fill: none; stroke: var(--accent); stroke-width: 1.8; stroke-linejoin: round; stroke-linecap: round; }
:is(#chart-pop, #price-chart) .c-sma { fill: none; stroke: var(--warn); stroke-width: 1.2; stroke-dasharray: 4 3; }
:is(#chart-pop, #price-chart) .c-hi { fill: var(--ok); } #chart-pop .c-lo { fill: var(--bad); }
:is(#chart-pop, #price-chart) .c-last { fill: var(--accent); stroke: var(--panel); stroke-width: 1.5; }
:is(#chart-pop, #price-chart) .c-txt { font: 600 10px var(--font); fill: var(--muted); }
#price-chart .pc-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; flex-wrap: wrap; margin-bottom: 8px; }
#price-chart .pc-head h2 { margin: 0; }
#price-chart .pc-ranges { display: inline-flex; gap: 4px; padding: 3px; background: var(--na-bg); border-radius: 999px; }
#price-chart .pc-ranges button { padding: 3px 14px; border-radius: 999px; background: transparent; color: var(--muted); border: 0; font-size: 13px; font-weight: 650; }
#price-chart .pc-ranges button:hover:not(:disabled) { filter: none; color: var(--text); }
#price-chart .pc-ranges button[aria-pressed="true"] { background: var(--panel); color: var(--accent); box-shadow: 0 1px 3px rgb(0 0 0 / .12); }
#price-chart .pc-read { display: flex; flex-wrap: wrap; gap: 4px 18px; min-height: 40px; font-variant-numeric: tabular-nums; }
#price-chart .pc-cell { display: inline-flex; flex-direction: column; font-size: 14px; }
#price-chart .pc-cell i { font-style: normal; font-size: 11px; color: var(--muted); }
#price-chart .pc-stage { min-height: 200px; touch-action: pan-y; }
#price-chart .chart { cursor: crosshair; }
#price-chart .c-cursor line { stroke: var(--muted); stroke-width: 1; stroke-dasharray: 3 3; }
#price-chart .c-cursor circle { fill: var(--accent); stroke: var(--panel); stroke-width: 2; }
@media (prefers-reduced-motion: reduce) { #chart-pop { transition: none; } }

/* ---------------------------------------------------------------- đăng nhập */
.login-page { align-items: center; justify-content: center; padding: 24px 16px; }
.login-shell {
  width: 100%; max-width: 880px; display: grid; grid-template-columns: 1.05fr 1fr; overflow: hidden;
  background: var(--panel); border: 1px solid var(--line); border-radius: 20px; box-shadow: var(--shadow);
}
.login-hero {
  position: relative; display: flex; flex-direction: column; justify-content: space-between; gap: 28px; overflow: hidden;
  padding: 32px 30px 0; min-height: 440px;
  background: linear-gradient(160deg, var(--accent-soft), color-mix(in srgb, var(--teal) 14%, var(--panel)));
}
.login-brand { display: flex; align-items: center; gap: 10px; }
.login-pitch h2 { margin: 0 0 8px; font-size: 24px; line-height: 1.25; font-weight: 800; }
.login-pitch p { margin: 0; color: var(--muted); max-width: 34ch; }
.login-chips { list-style: none; display: flex; flex-wrap: wrap; gap: 6px; margin: 18px 0 0; padding: 0; }
.login-chips li { padding: 2px 9px; border-radius: 999px; font-size: 11.5px; font-weight: 600; color: var(--accent); background: color-mix(in srgb, var(--panel) 70%, transparent); border: 1px solid color-mix(in srgb, var(--accent) 22%, transparent); }
.login-chips li.f { color: var(--teal); border-color: color-mix(in srgb, var(--teal) 30%, transparent); }
.login-wave { display: block; width: calc(100% + 60px); height: 110px; margin: 0 -30px; }
.login-card { display: flex; flex-direction: column; justify-content: center; padding: 40px 38px 30px; }
.login-card h1 { margin: 0 0 4px; font-size: 26px; }
.login-lead { margin: 0 0 22px; color: var(--muted); }
.login-card form { display: flex; flex-direction: column; gap: 15px; }
.login-card label { display: flex; flex-direction: column; gap: 6px; color: var(--muted); font-size: 12.5px; font-weight: 550; }
.login-card input { font-size: 16px; min-height: 44px; width: 100%; }  /* 16px để iOS không tự phóng to khi chạm vào ô */
.pw-field { position: relative; display: block; }
.pw-field input { padding-right: 64px; }
.login-card .pw-toggle {
  position: absolute; right: 6px; top: 50%; transform: translateY(-50%); min-height: 0; margin: 0;
  padding: 5px 10px; font-size: 12.5px; font-weight: 600; border-radius: 8px;
  background: transparent; color: var(--muted); border-color: transparent;
}
.login-card .pw-toggle:hover:not(:disabled) { filter: none; color: var(--accent); background: var(--accent-soft); }
.login-card .pw-toggle:active:not(:disabled) { transform: translateY(-50%); }
.login-card .login-submit { min-height: 46px; margin-top: 6px; font-size: 15px; border-radius: 12px; }
.login-error { margin: 0; padding: 9px 12px; border-radius: var(--radius-sm); background: var(--bad-bg); color: var(--bad); font-weight: 550; }
.login-note { margin: 22px 0 0; color: var(--muted); font-size: 12px; text-align: center; }
@media (max-width: 760px) {
  .login-page { justify-content: flex-start; padding-top: 20px; }
  .login-shell { grid-template-columns: 1fr; max-width: 440px; }
  .login-hero { min-height: 0; padding: 18px 22px; gap: 0; }
  .login-pitch, .login-wave { display: none; }
  .login-card { padding: 26px 22px 22px; }
  .login-card h1 { font-size: 24px; }
}
.logout-form { margin: 0; }
.logout-form button { background: transparent; color: var(--muted); border-color: var(--line); padding: 5px 14px; min-height: 0; border-radius: 999px; font-weight: 550; }
.logout-form button:hover:not(:disabled) { filter: none; color: var(--accent); background: var(--accent-soft); }