/* Tài khoản Antline. Màu = DESIGN.md §17 (theme v4), tự đổi sáng/tối theo hệ máy. */
@font-face { font-family: "Be Vietnam Pro"; font-weight: 400; font-display: swap; src: url(fonts/bevietnampro-400-vietnamese.woff2) format("woff2"); unicode-range: U+0102-0103, U+0110-0111, U+0128-0129, U+0168-0169, U+01A0-01A1, U+01AF-01B0, U+0300-0301, U+0303-0304, U+0308-0309, U+0323, U+0329, U+1EA0-1EF9, U+20AB; }
@font-face { font-family: "Be Vietnam Pro"; font-weight: 400; font-display: swap; src: url(fonts/bevietnampro-400-latin.woff2) format("woff2"); unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }
@font-face { font-family: "Be Vietnam Pro"; font-weight: 700; font-display: swap; src: url(fonts/bevietnampro-700-vietnamese.woff2) format("woff2"); unicode-range: U+0102-0103, U+0110-0111, U+0128-0129, U+0168-0169, U+01A0-01A1, U+01AF-01B0, U+0300-0301, U+0303-0304, U+0308-0309, U+0323, U+0329, U+1EA0-1EF9, U+20AB; }
@font-face { font-family: "Be Vietnam Pro"; font-weight: 700; font-display: swap; src: url(fonts/bevietnampro-700-latin.woff2) format("woff2"); unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }

:root {
  color-scheme: light;
  --bg: #F2EFEE; --surface: #FDFBFA; --ink: #1C1B1F; --text: #3D3B40; --muted: #625D66;
  --border: #E2E0E0; --border-strong: #878586; --brand: #00756C; --brand-strong: #005E56; --brand-on: #FFFFFF;
  --danger: #B42318; --ok: #4A6B1A; --ok-soft: #E8EADF;
  --font: "Be Vietnam Pro", "Segoe UI", Roboto, Arial, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --bg: #141716; --surface: #1D2120; --ink: #ECE8DF; --text: #C8C6BE; --muted: #9FA39C;
    --border: #2C302F; --border-strong: #6F6F6A; --brand: #409E94; --brand-strong: #5BB7AD; --brand-on: #0E1B19;
    --danger: #FF7B7B; --ok: #B5D77A; --ok-soft: #2F372B;
  }
}

*, *::before, *::after { box-sizing: border-box; }
body {
  margin: 0; min-height: 100svh; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 16px;
  padding: 24px 16px; background: var(--bg); color: var(--text); font-family: var(--font); font-size: 16px; line-height: 1.55;
}
.card { width: 100%; max-width: 420px; background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 28px 24px; }
.card.wide { max-width: 560px; }
.brand { margin: 0 0 16px; font-size: 14px; font-weight: 700; color: var(--brand); }
h1 { margin: 0 0 12px; font-size: 24px; line-height: 1.25; color: var(--ink); }
h2 { margin: 0 0 8px; font-size: 16px; color: var(--ink); }
.lead { margin: 0 0 16px; overflow-wrap: anywhere; }
.note { margin: 8px 0 0; font-size: 14px; color: var(--muted); }
section { margin-top: 24px; padding-top: 20px; border-top: 1px solid var(--border); }
form { display: grid; gap: 14px; }
form.row { grid-auto-flow: column; grid-auto-columns: 1fr; }
label { display: grid; gap: 6px; font-size: 14px; font-weight: 700; color: var(--ink); }
label small { font-weight: 400; color: var(--muted); }
label.check { grid-template-columns: auto 1fr; align-items: start; font-weight: 400; color: var(--text); }
input:not([type="checkbox"]) {
  width: 100%; min-height: 44px; padding: 8px 12px; font: inherit; font-weight: 400; color: var(--ink);
  background: var(--bg); border: 1px solid var(--border-strong); border-radius: 8px;
}
input[type="checkbox"] { width: 20px; height: 20px; margin: 2px 0 0; accent-color: var(--brand); }
button {
  min-height: 44px; padding: 8px 16px; font: inherit; font-weight: 700; color: var(--brand-on); background: var(--brand);
  border: 1px solid var(--brand); border-radius: 8px; cursor: pointer;
}
button:hover { background: var(--brand-strong); border-color: var(--brand-strong); }
button.ghost { color: var(--brand); background: transparent; }
button.ghost:hover { color: var(--brand-on); background: var(--brand); }
button.danger { color: var(--danger); background: transparent; border-color: var(--danger); }
:focus-visible { outline: 2px solid var(--brand); outline-offset: 2px; }
.links { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 16px; margin: 16px 0 0; font-size: 14px; }
a { color: var(--brand); }
.alert { margin: 0 0 14px; padding: 10px 12px; color: var(--danger); border: 1px solid var(--danger); border-radius: 8px; }
.notice { margin: 0 0 14px; padding: 10px 12px; color: var(--ok); background: var(--ok-soft); border-radius: 8px; }
.apps { display: grid; gap: 8px; margin: 0; padding: 0; list-style: none; }
.apps li { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.apps strong { display: block; color: var(--ink); }
.apps small { color: var(--muted); }
.foot { font-size: 13px; color: var(--muted); }