/* Bố cục và bảng màu theo tab Phiên dịch của webapp AutoBot (x-chat/frontend/index.html): khối tiêu đề có Chế độ và
   Sắc thái, hàng tab + nút cờ ngôn ngữ, hai ô nguồn/bản dịch. Nền tối dùng đúng bảng màu của webapp. */
:root {
  --bg: #f4f3f0; --panel: #ffffff; --noi: #faf9f7; --vien: #d9d5cd; --txt: #1f1e1c; --mut: #6b665d;
  --acc: #0b6fd6; --acc-nut: #0b6fd6; --acc-mo: #e3eefc; --chu-nut: #ffffff; --off: #c62828; --ok: #1b7f3b;
  --xoa-chu: #c62828; --xoa-vien: #e8b4b4; --xoa-nen: #fbeaea; --bong: 0 14px 40px rgb(0 0 0 / 18%);
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #242321; --panel: #2c2b28; --noi: #33322f; --vien: #4d4a44; --txt: #f5f3ee; --mut: #bdb9b1;
    --acc: #168bfa; --acc-nut: #006bcd; --acc-mo: #2b3a4e; --chu-nut: #f5f3ee; --off: #ef4444; --ok: #22c55e;
    --xoa-chu: #ff6b6b; --xoa-vien: #6b2f37; --xoa-nen: #4a2027; --bong: 0 14px 40px rgb(5 9 18 / 60%);
    color-scheme: dark;
  }
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg); color: var(--txt); font: 15px/1.5 "Segoe UI", system-ui, -apple-system, "Noto Sans",
  "Noto Sans CJK JP", "Noto Sans CJK SC", "Noto Sans CJK KR", sans-serif; min-height: 100vh; display: flex;
  flex-direction: column;
}
[hidden] { display: none !important; }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }
button:disabled { opacity: .5; cursor: not-allowed; }
select, input { border: 1px solid var(--vien); border-radius: 10px; background: var(--noi); padding: 7px 10px; }
:focus-visible { outline: 2px solid var(--acc); outline-offset: 2px; }
.an-di { position: absolute; width: 1px; height: 1px; opacity: 0; overflow: hidden; }
.nhat { color: var(--mut); font-size: 13px; }
.loi { color: var(--off); }
.thong-bao { font-size: 13px; }
.thong-bao.loi { color: var(--off); }
.hang-nut { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.day-phai { margin-left: auto; }

/* Nút: nhỏ (viền mảnh), Dịch (nền xanh), Xoá (chữ đỏ). */
.nut-nho, .nut-dich {
  min-height: 36px; padding: 6px 12px; border-radius: 12px; border: 1px solid var(--vien); background: var(--noi);
  color: var(--txt); font-size: 14px; display: inline-flex; align-items: center; justify-content: center; gap: 6px;
}
.nut-nho:hover:not(:disabled) { background: var(--acc-mo); border-color: var(--acc); }
.nut-dich { background: var(--acc-nut); border-color: var(--acc); color: var(--chu-nut); min-width: 112px; font-weight: 600; }
.nut-dich:hover:not(:disabled) { filter: brightness(1.08); }
.nut-xoa { color: var(--xoa-chu); border-color: var(--xoa-vien); font-weight: 700; }
.nut-xoa:hover:not(:disabled) { background: var(--xoa-nen); border-color: var(--xoa-vien); }
.nut-nhap { position: relative; cursor: pointer; }
button.lien-ket { border: 0; background: none; color: var(--mut); text-decoration: underline; padding: 0; font-size: 13px; }

/* Đầu trang hai hàng: logo + tên dịch vụ + tài khoản ở hàng trên, các trang ở hàng dưới. */
.dau { display: flex; flex-direction: column; gap: 8px; padding: 10px 16px 8px; }
.dau-tren { display: flex; align-items: center; gap: 14px; }
.logo { display: flex; align-items: center; gap: 10px; color: var(--txt); text-decoration: none; font-weight: 700; font-size: 20px; }
.logo-dau { width: 34px; height: 34px; display: block; }
.dieu-huong { display: flex; gap: 4px; overflow-x: auto; }
.dieu-huong button { border: 1px solid transparent; background: none; padding: 6px 12px; min-height: 36px; border-radius: 9px; color: var(--mut); font-size: 14px; }
.dieu-huong button:hover { background: var(--noi); color: var(--txt); }
.dieu-huong button[aria-current="page"] { background: var(--acc-mo); border-color: var(--acc); color: var(--txt); font-weight: 600; }
.tk { display: flex; align-items: center; gap: 8px; margin-left: auto; }
.tk-email { font-size: 13px; color: var(--mut); max-width: 240px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

main { width: 100%; max-width: min(1720px, 100%); margin: 0 auto; padding: 0 8px 8px; flex: 1; display: flex; flex-direction: column; }
.the-dich, .trang-phu { display: flex; flex-direction: column; gap: 8px; flex: 1; min-height: 0; }

/* Khối tiêu đề: tên trang bên trái, Chế độ và Sắc thái bên phải. */
.dich-dau {
  display: flex; align-items: center; justify-content: space-between; gap: 8px 16px; flex-wrap: wrap;
  padding: 8px 12px; background: var(--panel); border: 1px solid var(--vien); border-radius: 16px;
}
.khu-dau h1 { margin: 0 0 2px; font-size: 22px; line-height: 1.25; }
.khu-dau p { margin: 0; color: var(--mut); font-size: 12px; }
.tuy-chon { display: flex; flex-wrap: wrap; align-items: center; justify-content: flex-end; gap: 6px 12px; margin-left: auto; }
.rd-nhom { display: flex; flex-direction: column; align-items: flex-start; gap: 5px; min-width: 0; }
.rd-ten { font-size: 11px; color: var(--mut); white-space: nowrap; }
.rd-ds { display: flex; flex-wrap: wrap; gap: 6px; }
.rd-ds label {
  display: flex; align-items: center; gap: 6px; padding: 4px 10px 4px 8px; min-height: 32px; border-radius: 999px;
  border: 1px solid var(--vien); background: var(--noi); font-size: 12px; cursor: pointer; white-space: nowrap;
}
.rd-ds label:hover { background: var(--acc-mo); border-color: var(--acc); }
.rd-ds label:has(input:checked) { border-color: var(--acc); background: var(--acc-mo); }
.rd-ds label:has(input:disabled) { opacity: .5; cursor: not-allowed; }
.rd-ds input { margin: 0; width: 13px; height: 13px; accent-color: var(--acc); cursor: pointer; }

/* Hàng điều khiển: tab, ngôn ngữ, bảng thuật ngữ. */
.dich-dk { display: flex; align-items: center; gap: 8px 20px; flex-wrap: wrap; }
#dichTab { display: flex; align-items: center; gap: 4px; padding: 4px; background: var(--panel); border: 1px solid var(--vien); border-radius: 13px; }
#dichTab [role=tab] { border: 1px solid transparent; background: transparent; color: var(--mut); padding: 8px 12px; min-height: 36px; border-radius: 9px; font-size: 14px; }
#dichTab [role=tab]:hover { background: var(--noi); color: var(--txt); }
#dichTab [role=tab][aria-selected="true"] { background: var(--acc-mo); border-color: var(--acc); color: var(--txt); font-weight: 600; }
.dich-nn { position: relative; display: grid; grid-template-columns: minmax(0, 200px) 44px minmax(0, 200px); align-items: center; gap: 8px; flex: 0 1 460px; min-width: 0; }
.cobtn {
  display: grid; grid-template-columns: 22px minmax(0, 1fr); column-gap: 8px; align-items: center; width: 100%;
  min-height: 44px; padding: 5px 10px; border-radius: 999px; border: 1px solid var(--vien); background: var(--noi);
  color: var(--txt); font-size: 13px; text-align: left;
}
.cobtn:hover, .cobtn[aria-expanded="true"] { background: var(--acc-mo); border-color: var(--acc); }
.cobtn .co-la { grid-row: 1 / 3; }
.cobtn .co-ten { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.cobtn .co-mui { grid-column: 2; color: var(--mut); font-size: 10px; line-height: 1.1; }
.co-la { display: block; width: 22px; height: 15px; overflow: hidden; border-radius: 2px; box-shadow: 0 0 0 1px rgb(127 127 127 / 30%); }
.co-la svg { display: block; width: 100%; height: 100%; }
.doi-chieu {
  width: 44px; height: 44px; padding: 0; display: flex; align-items: center; justify-content: center; border-radius: 999px;
  border: 1px solid var(--vien); background: var(--noi); color: var(--txt);
}
.doi-chieu:hover:not(:disabled) { background: var(--acc-mo); border-color: var(--acc); color: var(--acc); }
.doi-chieu svg { width: 16px; height: 16px; display: block; }
.co-pop {
  position: absolute; top: calc(100% + 6px); z-index: 20; width: 260px; max-width: 100%; max-height: min(420px, 60vh);
  overflow-y: auto; padding: 8px; border-radius: 12px; background: var(--panel); border: 1px solid var(--acc);
  box-shadow: var(--bong); display: grid; gap: 6px;
}
.co-chon {
  display: flex; align-items: center; gap: 10px; padding: 9px 12px; border-radius: 10px; border: 1px solid var(--vien);
  background: var(--noi); color: var(--txt); font-size: 15px; text-align: left;
}
.co-chon .co-la { width: 30px; height: 20px; border-radius: 3px; }
.co-chon:hover { background: var(--acc-mo); border-color: var(--acc); }
.co-chon[aria-selected="true"] { border-color: var(--acc); background: var(--acc-mo); font-weight: 600; }
.lien-ket-tn { margin-left: auto; border: 0; background: none; color: var(--mut); font-size: 12px; white-space: nowrap; padding: 6px 4px; }
.lien-ket-tn:hover { color: var(--acc); text-decoration: underline; }

/* Hai ô nguồn và bản dịch. */
.luoi-dich { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; flex: 1; min-height: max(380px, calc(100vh - 300px)); }
.hop-dich { min-width: 0; min-height: 0; display: flex; flex-direction: column; gap: 6px; padding: 8px; background: var(--noi); border: 1px solid var(--vien); border-radius: 12px; }
.hop-dau { display: flex; align-items: center; justify-content: space-between; gap: 6px; min-height: 36px; }
.hop-dau h2 { margin: 0; font-size: 16px; }
#vbVao, .ra {
  flex: 1; min-height: 0; width: 100%; padding: 10px; line-height: 1.5; font-size: 16px; overflow-y: auto;
  background: var(--bg); border: 1px solid var(--vien); border-radius: 10px;
}
#vbVao { resize: none; }
#vbVao:focus { outline: none; border-color: var(--acc); box-shadow: 0 0 0 1px var(--acc); }
.ra { white-space: pre-wrap; overflow-wrap: anywhere; }
.ra.cho { color: var(--mut); }
.ra.tra-tu { white-space: normal; }
.ra.tra-tu > :first-child { margin-top: 0; }
.ra.tra-tu > :last-child { margin-bottom: 0; }
.ra.tra-tu h3 { font-size: 16px; margin: 12px 0 4px; }
.ra.tra-tu p { margin: 0 0 6px; }
.ra.tra-tu ul, .ra.tra-tu ol { margin: 0 0 8px; padding-left: 22px; }
.cong-cu { display: flex; align-items: center; gap: 8px; }
.cong-cu .nut-dich { margin-left: auto; }
.dang-tai { display: flex; align-items: center; gap: 8px; color: var(--mut); font-style: italic; }
.dang-tai i { width: 7px; height: 7px; border-radius: 50%; background: var(--acc); display: inline-block; animation: nhay 1.1s ease-in-out infinite; }
.dang-tai i:nth-child(2) { animation-delay: .15s; }
.dang-tai i:nth-child(3) { animation-delay: .3s; }
@keyframes nhay { 0%, 60%, 100% { opacity: .25; transform: translateY(0); } 30% { opacity: 1; transform: translateY(-3px); } }
@media (prefers-reduced-motion: reduce) { .dang-tai i { animation: none; opacity: .8; } }

.dong-trang-thai { display: flex; align-items: center; gap: 10px 16px; flex-wrap: wrap; min-height: 22px; padding: 0 4px; }
.dong-trang-thai .goi-y { margin-left: auto; font-size: 12px; }

/* Tài liệu. */
.khu-tai-lieu { display: flex; flex-direction: column; gap: 8px; flex: 1; min-height: max(380px, calc(100vh - 300px)); }
.tha {
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 8px; min-height: 180px;
  border: 2px dashed var(--vien); border-radius: 12px; background: var(--noi); cursor: pointer; text-align: center;
  padding: 20px; position: relative; color: var(--mut);
}
.tha.dang-keo, .tha:hover { border-color: var(--acc); background: var(--acc-mo); }
.tha-ic { font-size: 34px; line-height: 1; }
.tha-chu { font-size: 15px; color: var(--txt); }
.dt-dau { display: flex; align-items: center; gap: 12px; }
.dt-dau h2 { margin: 0; font-size: 14px; }
.ds-viec { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.ds-viec li { background: var(--noi); border: 1px solid var(--vien); border-radius: 10px; padding: 10px 14px; display: grid; grid-template-columns: 1fr auto; gap: 4px 12px; align-items: center; }
.ds-viec .ten { font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.ds-viec .phu-de { grid-column: 1; font-size: 13px; color: var(--mut); }
.ds-viec .hanh-dong { grid-row: 1 / span 2; grid-column: 2; display: flex; gap: 8px; align-items: center; }
.ds-viec a.tai { background: var(--acc-nut); color: var(--chu-nut); border: 1px solid var(--acc); padding: 6px 12px; border-radius: 12px; text-decoration: none; font-weight: 600; font-size: 14px; }
.thanh-tien-do { grid-column: 1 / -1; height: 4px; background: var(--vien); border-radius: 2px; overflow: hidden; }
.thanh-tien-do > span { display: block; height: 100%; background: var(--acc); width: 0; transition: width .4s; }
.trang-thai-xong { color: var(--ok) !important; }
.trang-thai-loi { color: var(--off) !important; }

/* Thuật ngữ và gói. */
.tn-form { display: grid; grid-template-columns: auto 1fr auto 1fr 1fr auto; gap: 8px; align-items: center; }
.bang-cuon { overflow-x: auto; background: var(--panel); border: 1px solid var(--vien); border-radius: 12px; }
table { border-collapse: collapse; width: 100%; font-size: 14px; }
th, td { text-align: left; padding: 8px 12px; border-bottom: 1px solid var(--vien); vertical-align: top; }
th { color: var(--mut); font-weight: 600; font-size: 13px; }
tbody tr:last-child td { border-bottom: 0; }
.goi-ds { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px; }
.the-goi { background: var(--panel); border: 1px solid var(--vien); border-radius: 14px; padding: 18px; display: flex; flex-direction: column; gap: 8px; }
.the-goi.dang-dung { border-color: var(--acc); box-shadow: 0 0 0 1px var(--acc); }
.the-goi h3 { margin: 0; }
.the-goi ul { margin: 0; padding-left: 18px; color: var(--mut); font-size: 14px; }
.the-goi .gia { font-weight: 700; }
.the-goi button { margin-top: auto; }

.qc { max-width: min(1720px, 100%); margin: 0 auto 8px; padding: 0 8px; width: 100%; }
.qc a.banner { display: block; padding: 12px 16px; border-radius: 12px; background: var(--acc-mo); color: var(--acc); font-weight: 600; text-decoration: none; text-align: center; }
.qc ins { display: block; min-height: 90px; }

.chan { display: flex; justify-content: center; gap: 14px; padding: 14px; color: var(--mut); font-size: 13px; }

dialog { border: 1px solid var(--vien); border-radius: 14px; padding: 0; background: var(--panel); color: var(--txt); max-width: 520px; width: calc(100% - 32px); }
dialog::backdrop { background: rgb(0 0 0 / 45%); }
.hop { display: flex; flex-direction: column; gap: 12px; padding: 22px; }
.hop h2 { margin: 0; font-size: 19px; }
.hop h3 { margin: 6px 0 0; font-size: 15px; }
.hop .hang-nut { justify-content: flex-end; }
.chinh-sach ul { margin: 0; padding-left: 18px; font-size: 14px; }

/* Thông báo nổi góc dưới phải, tự ẩn sau vài giây (`thongBaoNoi` trong app.js). */
.thong-bao-noi { position: fixed; right: 16px; bottom: 16px; z-index: 50; display: flex; flex-direction: column; gap: 8px; max-width: min(380px, calc(100vw - 32px)); }
.tb-muc {
  display: flex; align-items: center; gap: 10px; padding: 10px 14px; border-radius: 12px; background: var(--panel);
  border: 1px solid var(--vien); border-left: 4px solid var(--ok); box-shadow: var(--bong); font-size: 14px;
  animation: tb-vao .2s ease-out; transition: opacity .3s, transform .3s;
}
.tb-muc.loi { border-left-color: var(--off); }
.tb-muc.ra { opacity: 0; transform: translateY(6px); }
.tb-muc button { margin-left: auto; border: 0; background: none; color: var(--mut); font-size: 16px; padding: 0 2px; }
@keyframes tb-vao { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
@media (prefers-reduced-motion: reduce) { .tb-muc { animation: none; transition: none; } }

@media (max-width: 760px) {
  .dau { padding: 8px 12px; }
  .logo { font-size: 18px; }
  main { padding: 0 12px 12px; }
  .dich-dau { padding: 8px 10px; }
  .khu-dau h1 { font-size: 18px; }
  .khu-dau p { display: none; }
  .tuy-chon { margin-left: 0; justify-content: flex-start; width: 100%; gap: 6px; }
  .rd-nhom { flex-direction: row; align-items: center; gap: 8px; width: 100%; }
  .rd-ten { min-width: 48px; }
  .rd-ds { gap: 4px; flex: 1; min-width: 0; }
  .rd-ds label { min-height: 44px; padding: 5px 8px 5px 7px; font-size: 12px; gap: 5px; }
  .dich-dk { gap: 8px; }
  .lien-ket-tn { font-size: 12px; }
  .dich-nn { order: 2; flex-basis: 100%; grid-template-columns: minmax(0, 1fr) 44px minmax(0, 1fr); }
  .luoi-dich { grid-template-columns: minmax(0, 1fr); grid-template-rows: minmax(240px, 36dvh) minmax(260px, 42dvh); min-height: 0; flex: none; }
  .khu-tai-lieu { min-height: 0; }
  .nut-nho, .nut-dich { min-height: 44px; }
  .nut-dich { min-width: 88px; }
  .tn-form { grid-template-columns: 1fr 1fr; }
  .tn-form button { grid-column: 1 / -1; }
  .goi-y { display: none; }
}