/* Tài khoản AI Thạo Việc: lối vào trên thanh điều hướng, hộp đăng ký/đăng nhập, nút lưu bài, các trang tài khoản.
   Dùng biến màu và nút sẵn có của style.css. Chỉ có trong bản dựng khi tài khoản được bật. */

/* ----- lối vào trên thanh điều hướng ----- */
.tk-in{display:none!important}
html[data-tk="in"] .tk-out{display:none!important}
html[data-tk="in"] .tk-in{display:list-item!important}
.nav-acct{flex:none;align-items:center;gap:2px;margin-left:4px;padding-left:10px;border-left:1px solid rgba(255,255,255,.3)}
.nav-acct a{display:block;padding:8px 12px;font-size:14px;font-weight:700;text-decoration:none;white-space:nowrap;border-radius:var(--rb)}
.nav-acct a:hover{text-decoration:underline}
.nav-acct a.tk-cta{background:var(--hi);color:var(--ink)}
.nav-acct a.tk-cta:hover{text-decoration:none;filter:brightness(.95)}
/* Thanh ghim ở máy tính hẹp: giữ đủ Giới thiệu và Góp ý, chỉ hiện một lối tài khoản (Đăng nhập, hoặc Việc của tôi khi đã đăng nhập). */
@media (min-width:901px) and (max-width:1320px){.navbar.is-stuck .nav-acct li:nth-child(2n){display:none!important}}
@media (min-width:901px) and (max-width:1180px){.nav-acct{margin-left:0;padding-left:6px}.nav-acct a{padding-inline:8px;font-size:13.5px}.navbar.is-stuck .nav-acct{padding-left:4px}.navbar.is-stuck .nav-acct a{padding-inline:6px;font-size:13px}}
@media (min-width:1024px) and (max-width:1099px){html[data-tk="in"] .navbar.is-stuck .nav-acct{margin-left:0;padding-left:0;border-left:0}html[data-tk="in"] .navbar.is-stuck .nav-acct a{padding-inline:2px;font-size:12.5px}}
/* Dải 901 đến 1023px (hiếm gặp): thanh ghim giữ nguyên như khi chưa có tài khoản; lối tài khoản vẫn có ở đầu trang. */
@media (min-width:901px) and (max-width:1023px){.navbar.is-stuck .nav-acct{display:none!important}}
@media (min-width:901px) and (max-width:940px){.nav-acct li:nth-child(2n){display:none!important}}
/* Điện thoại: không thêm hàng nào vào đầu trang. Lối tài khoản nằm cạnh nút tìm ở hàng thương hiệu và trong danh sách Chuyên mục. */
.mast-acct{display:none;margin:0}
@media (max-width:900px){
  .nav-acct{display:none!important}
  .mast-in{grid-template-columns:auto minmax(0,1fr) auto auto}
  .mast-acct{display:block;justify-self:end}
  .mast-acct a{display:inline-flex;align-items:center;min-height:44px;padding:0 12px;border-radius:var(--rb);background:var(--hi);color:var(--ink);font-size:14px;font-weight:700;text-decoration:none;white-space:nowrap}
  .mast-acct-in,html[data-tk="in"] .mast-acct-out{display:none!important}
  html[data-tk="in"] .mast-acct-in{display:inline-flex!important}
  .mbar-list .tk-cta{color:var(--accent-deep)}
}
/* Điện thoại hẹp: slogan xuống ngay dưới logo (vẫn hiện, không ẩn) để có chỗ cho lối tài khoản mà đầu trang không cao thêm. */
@media (max-width:560px){
  .mast-in{grid-template-columns:auto minmax(0,1fr) auto auto;grid-template-rows:auto auto;row-gap:1px}
  .site-header .logo{grid-column:1;grid-row:1}
  .site-header .logo img{height:28px}
  .mast-tag{grid-column:1;grid-row:2;font-size:11.5px;line-height:1.15;white-space:nowrap}
  .mast-acct{grid-column:3;grid-row:1 / span 2;align-self:center}
  .search-toggle{grid-column:4;grid-row:1 / span 2;align-self:center}
  .header-search{grid-row:3}
}
@media (max-width:359px){
  .mast-in{column-gap:8px}
  .site-header .logo img{height:24px}
  .mast-tag{font-size:11px}
  .mast-acct a{padding:0 8px;font-size:13px}
  html[data-tk="in"] .site-header .logo img{height:22px}
}

/* ----- hộp tài khoản ----- */
.tk-dlg{width:min(520px,calc(100vw - 24px));max-height:calc(100vh - 24px);max-height:calc(100dvh - 24px);padding:0;border:0;border-radius:12px;background:#fff;color:var(--ink);box-shadow:0 24px 60px rgba(16,19,26,.35);overflow:auto}
.tk-dlg::backdrop{background:rgba(16,19,26,.55)}
.tk-box{position:relative;padding:26px 24px 22px}
.tk-x{position:absolute;top:8px;right:8px;width:44px;height:44px;border:0;background:none;font-size:28px;line-height:1;color:var(--muted);cursor:pointer;border-radius:var(--rb)}
.tk-x:hover{color:var(--ink);background:var(--soft)}
.tk-box h2,.tk-inline h2{margin:0 40px 10px 0;font-size:22px;line-height:1.25}
.tk-inline h2{margin-right:0}
.tk-lead{margin:0 0 14px;font-size:16px}
.tk-fine,.tk-hint{margin:10px 0 0;font-size:13.5px;line-height:1.5;color:var(--muted)}
.tk-hint{margin-top:6px}
.tk-muted{color:var(--muted);font-size:14px}
.tk-note{margin:0 0 12px;padding:10px 12px;border-left:4px solid var(--accent);background:#EEF2FF;font-size:14.5px}
.tk-err{color:#B42318;font-weight:600;font-size:14.5px;margin:8px 0 0}
.tk-err[hidden]{display:none}
.tk-tabs{display:grid;grid-template-columns:1fr 1fr;gap:0;margin:0 0 14px;border:2px solid var(--ink);border-radius:var(--pill);overflow:hidden}
.tk-tab{border:0;background:#fff;color:var(--ink);font:700 15px/1 var(--body);min-height:44px;cursor:pointer}
.tk-tab[aria-pressed="true"]{background:var(--ink);color:#fff}
.tk-dlg label,.tk-inline label,.tk-page label{display:block;font-weight:700;font-size:15px;margin:12px 0 6px}
.tk-dlg input[type="email"],.tk-dlg input[type="text"],.tk-inline input[type="email"],.tk-inline input[type="text"],.tk-page input[type="text"],.tk-page textarea{width:100%;font:inherit;font-size:17px;padding:11px 14px;border:2px solid var(--ink);border-radius:var(--rb);background:#fff;color:var(--ink)}
#tk-ma,#tk-del-ma{font-size:24px;letter-spacing:.3em;font-weight:700;max-width:240px}
.tk-dlg form .btn,.tk-inline form .btn{margin-top:14px;width:100%;justify-content:center;min-height:48px}
.tk-ck{display:flex!important;gap:10px;align-items:flex-start;font-weight:500!important;font-size:15px!important;margin:14px 0 0!important;cursor:pointer}
.tk-ck input{flex:none;width:20px;height:20px;margin:2px 0 0;accent-color:var(--accent)}
.tk-actions{display:flex;flex-wrap:wrap;align-items:center;gap:8px 18px;margin:16px 0 0}
.tk-link{border:0;background:none;padding:6px 0;min-height:36px;font:600 15px/1.3 var(--body);color:var(--accent);text-decoration:underline;text-underline-offset:3px;cursor:pointer}
.tk-link[disabled]{color:var(--muted);text-decoration:none;cursor:default}
.tk-danger{color:#B42318}
.tk-btn-danger{background:#B42318;color:#fff;border-color:#B42318}
.tk-btn-danger[disabled]{opacity:.5;cursor:not-allowed}
.tk-google{display:flex;align-items:center;justify-content:center;gap:10px;width:100%;min-height:48px;border:2px solid var(--line);border-radius:var(--rb);background:#fff;color:var(--ink);font:700 16px/1 var(--body);cursor:pointer}
.tk-google:hover{border-color:var(--ink)}
.tk-google[disabled]{opacity:.6;cursor:progress}
.tk-g{display:inline-flex}
.tk-or{display:flex;align-items:center;gap:12px;margin:14px 0 2px;color:var(--muted);font-size:14px}
.tk-or::before,.tk-or::after{content:"";flex:1;height:1px;background:var(--line)}
.tk-preview{border:1px solid var(--line);border-radius:8px;padding:12px 14px;background:var(--soft);max-height:38vh;overflow:auto}
.tk-k{margin:0 0 6px;font-size:12.5px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--accent)}
.tk-preview dl{margin:0}
.tk-preview dt{font-weight:700;font-size:14px;margin-top:8px}
.tk-preview dt:first-child{margin-top:0}
.tk-preview dd{margin:2px 0 0;font-size:15px}
.tk-preview ol{margin:6px 0 4px;padding-left:20px}
.tk-ctx-what{margin:6px 0 0 30px;padding:8px 10px;border-left:3px solid var(--line);font-size:14px;color:var(--muted)}
.tk-ctx-what p{margin:0 0 4px}

/* ----- bài viết: lưu bài, đánh dấu đã đọc ----- */
.tk-bai[hidden]{display:none}
.tk-bai-dau{display:flex;align-items:center;gap:10px;margin-top:10px}
.tk-bai-btn{display:inline-flex;align-items:center;gap:8px;min-height:44px;padding:8px 14px;border:2px solid var(--ink);border-radius:var(--rb);background:#fff;color:var(--ink);font:700 15px/1 var(--body);cursor:pointer}
.tk-bai-btn.is-on{background:var(--ink);color:#fff}
.tk-bm{display:inline-block;width:12px;height:16px;border:2px solid currentColor;border-bottom:0;position:relative}
.tk-bm::after{content:"";position:absolute;left:-2px;right:-2px;bottom:-5px;height:8px;background:linear-gradient(to bottom right,currentColor 50%,transparent 50%) left/50% 100% no-repeat,linear-gradient(to bottom left,currentColor 50%,transparent 50%) right/50% 100% no-repeat}
.tk-bai-btn.is-on .tk-bm{background:currentColor}
.tk-bai-cuoi{margin:20px 0;padding:14px 16px;border:1px solid var(--line);border-radius:8px;background:var(--soft)}
.tk-bai-q{margin:0 0 8px;font-weight:700}
.tk-bai-act{display:flex;flex-wrap:wrap;align-items:center;gap:8px 12px;margin:0;font-size:15px}
.tk-bai-st{font-size:14px;color:var(--muted)}
.tk-chip{display:inline-flex;align-items:center;min-height:40px;padding:6px 14px;border:2px solid var(--ink);border-radius:var(--pill);background:#fff;color:var(--ink);font:600 15px/1.2 var(--body);cursor:pointer}
.tk-chip.is-on,.tk-chip[aria-pressed="true"]{background:var(--ink);color:#fff}
.tk-chips{display:flex;flex-wrap:wrap;gap:8px}

/* ----- trang Thạo: việc đã lưu ----- */
.tk-bar{margin:0 0 14px;padding:10px 14px;border-left:4px solid var(--accent);background:#EEF2FF;font-size:15px;display:flex;flex-wrap:wrap;align-items:center;gap:6px 14px}
.tk-bar-warn{border-left-color:#B54708;background:#FFFAEB}
.tk-saved{font-weight:700}
.tk-strip[hidden]{display:none}
.tk-strip{margin-top:16px}
.tk-strip-h{margin:0 0 8px;font-weight:700}
.tk-strip ul{list-style:none;margin:0 0 8px;padding:0;display:grid;gap:8px}
.tk-strip .tgp-chip{width:100%;text-align:left}

/* ----- các trang tài khoản ----- */
.tk-top{background:var(--soft);border-bottom:1px solid var(--line)}
.tk-top-in{max-width:920px;padding:28px 0 22px}
.tk-top .tgp-id{display:flex;align-items:center;gap:10px;margin:0;font-size:15px;color:var(--muted)}
.tk-top .tgp-id b{color:var(--ink)}
.tk-page .tgp-policy{margin-top:24px;font-size:14px}
.tk-top h1{margin:6px 0 6px;font-size:clamp(28px,4vw,40px);line-height:1.15}
.tk-top-lead{margin:0;font-size:17px;color:var(--muted)}
.tk-page{max-width:920px;padding:22px 0 56px}
.tk-nav ul{list-style:none;display:flex;flex-wrap:wrap;gap:6px;margin:0 0 20px;padding:0;border-bottom:2px solid var(--line)}
.tk-nav[hidden]{display:none}
.tk-nav a{display:block;padding:10px 14px;font-weight:700;font-size:15.5px;text-decoration:none;color:var(--ink);border-bottom:4px solid transparent;margin-bottom:-2px}
.tk-nav a[aria-current]{border-bottom-color:var(--accent);color:var(--accent-deep)}
.tk-card{border:1px solid var(--line);border-radius:10px;padding:18px 20px;margin:0 0 16px;background:#fff}
.tk-card h2{margin:0 0 10px;font-size:21px}
.tk-card h3{margin:0 0 8px;font-size:19px;line-height:1.3}
.tk-view>section>h2,.tk-closed>summary{font-size:20px;margin:18px 0 12px;font-weight:700}
.tk-closed>summary{cursor:pointer}
.tk-auth-card{max-width:520px}
.tk-head-act{margin:0 0 6px}
.tk-loading{color:var(--muted)}
.tk-states{display:flex;flex-wrap:wrap;gap:6px;margin:0 0 10px}
.tk-state{display:inline-block;padding:3px 10px;border-radius:var(--pill);background:var(--soft);font-size:13.5px;font-weight:700}
.tk-state-dat{background:#DCFAE6;color:#085D3A}
.tk-state-con-vuong,.tk-state-cu{background:#FEF0C7;color:#93370D}
.tk-state-mot-phan{background:#E0EAFF;color:#1733C9}
.tk-warn{margin:0 0 10px;padding:8px 12px;border-left:4px solid #B54708;background:#FFFAEB;font-size:15px}
.tk-detail{margin-top:14px;padding-top:14px;border-top:1px solid var(--line)}
.tk-detail[hidden],.tk-edit[hidden]{display:none}
.tk-dl{margin:0}
.tk-dl dt{font-weight:700;font-size:14.5px;margin-top:12px;color:var(--muted)}
.tk-dl dt:first-child{margin-top:0}
.tk-dl dd{margin:3px 0 0}
.tk-dl ol,.tk-dl ul{margin:4px 0;padding-left:22px}
.tk-fb{margin:18px 0 0;padding:14px;border:1px solid var(--line);border-radius:8px}
.tk-fb legend{font-weight:700;padding:0 6px}
.tk-edit{margin-top:16px;padding:14px;border:2px solid var(--accent);border-radius:8px}
.tk-actions-end{margin-top:18px;padding-top:12px;border-top:1px solid var(--line)}
.tk-confirm{margin-top:12px;padding:12px 14px;border:2px solid #B42318;border-radius:8px;background:#FEF3F2}
.tk-confirm p{margin:0 0 6px}
.tk-list{list-style:none;margin:0;padding:0}
.tk-list li{padding:10px 0;border-top:1px solid var(--line)}
.tk-list li:first-child{border-top:0}
.tk-list a{font-weight:700}
.tk-danger-zone{border-color:#FDA29B}
.tk-empty{text-align:left}
@media (max-width:560px){.tk-box{padding:22px 16px 18px}.tk-card{padding:16px 14px}.tk-actions .btn{width:100%;justify-content:center}.tk-nav a{padding:10px 10px;font-size:15px}}
@media print{.tk-dlg,.tk-bai,.nav-acct{display:none!important}}