/* 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}
/* Hàng menu chưa ghim không còn liên kết phụ đứng trước lối tài khoản nên bỏ vạch ngăn. */
.navbar:not(.is-stuck) .nav-acct{margin-left:0;padding-left:0;border-left:0}
/* Thanh ghim ở máy tính hẹp: chỉ hiện một lối tài khoản (Đăng nhập, hoặc Việc của tôi khi đã đăng nhập) bên cạnh lối vào Thạo. */
@media (min-width:901px) and (max-width:1320px){.navbar.is-stuck .nav-acct .tk-acct2{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}}
/* Nút vào Thạo không co theo các quy tắc thu nhỏ lối tài khoản ở trên: giữ đệm đủ rộng để vẫn là nút. */
@media (min-width:901px) and (max-width:1180px){.navbar .nav-acct li.nav-thao a.nav-cta,html[data-tk="in"] .navbar.is-stuck .nav-acct li.nav-thao a.nav-cta{padding-inline:12px;font-size:13.5px}}
@media (min-width:1024px) and (max-width:1099px){html[data-tk="in"] .navbar.is-stuck .nav-in{gap:8px}html[data-tk="in"] .navbar.is-stuck .nav-acct li.nav-thao a.nav-cta{margin-left:4px;padding-inline:10px;font-size:13px}}
/* Dải 901 đến 1023px (hiếm gặp): thanh ghim chỉ giữ lối vào Thạo; lối tài khoản vẫn có ở đầu trang. */
@media (min-width:901px) and (max-width:1023px){.navbar.is-stuck .nav-acct{margin-left:0;padding-left:0;border-left:0}.navbar.is-stuck .nav-acct .nav-acct-i:not(.nav-thao){display:none!important}.navbar.is-stuck .nav-acct li.nav-thao a.nav-cta{margin-left:0;padding-inline:10px;font-size:13px}}
@media (min-width:901px) and (max-width:940px){.nav-acct li.tk-acct2{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 8px;border-radius:var(--rb);color:var(--accent-deep);font-size:14px;font-weight:700;text-decoration:none;white-space:nowrap}
  .mast-acct a:hover{text-decoration:underline}
  .mast-acct-in,html[data-tk="in"] .mast-acct-out{display:none!important}
  html[data-tk="in"] .mast-acct-in{display:inline-flex!important}
}
/* 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 6px;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-savenote{margin:0 0 12px;font-size:14.5px;font-weight:600;color:var(--ink)}

/* ----- hộp đăng nhập 05/10/2026: gọn, nhẹ, Thạo 3D ở đầu hộp ----- */
.tk-dlg{width:min(440px,calc(100vw - 24px));border-radius:16px}
.tk-box{padding:20px 28px 22px;background:linear-gradient(180deg,#F1F4FF 0,#fff 150px)}
.tk-x{top:6px;right:6px;font-size:26px;z-index:3}
.tk-thao{position:relative;display:flex;justify-content:center;margin:0 0 4px;pointer-events:none}
.tk-thao-btn{pointer-events:auto}
.tk-thao[hidden]{display:none}
.tk-thao-btn{position:relative;width:112px;height:104px;padding:0;border:0;border-radius:14px;background:transparent;cursor:pointer;touch-action:manipulation;-webkit-tap-highlight-color:transparent}
.tk-thao-btn img,.tk-thao-btn canvas{position:absolute;inset:0;display:block;width:100%;height:100%;object-fit:contain}
.tk-thao-btn.is-3d img{visibility:hidden}
.tk-thao-btn::after{content:"";position:absolute;left:28%;right:28%;bottom:1px;height:5px;border-radius:50%;background:rgba(29,48,87,.14);filter:blur(3px);pointer-events:none}
.tk-thao-btn:focus-visible{outline:3px solid var(--accent);outline-offset:3px}
.tk-thao-btn.is-nghieng img{animation:tk-thao-nghieng .9s ease-out 1}
@keyframes tk-thao-nghieng{0%{transform:rotate(0)}30%{transform:rotate(-7deg) translateY(-3px)}60%{transform:rotate(4deg)}100%{transform:rotate(0)}}
.tk-thao-note{position:absolute;left:calc(50% + 34px);bottom:10px;width:34px;height:28px;padding:6px 6px 0;border-radius:3px;background:var(--hi);box-shadow:0 2px 6px rgba(16,19,26,.16);transform:rotate(8deg);pointer-events:none}
.tk-thao-note i{display:block;height:2px;margin:0 0 5px;border-radius:2px;background:rgba(16,19,26,.55)}
.tk-thao-note i+i{width:60%}
.tk-thao-dap{position:absolute;right:calc(50% + 50px);top:14px;margin:0;padding:4px 10px;border-radius:10px 10px 2px 10px;background:var(--accent);color:#fff;font-size:13px;font-weight:600;line-height:1.4;white-space:nowrap;opacity:0;transform:translateY(4px);transition:opacity var(--motion),transform var(--motion);pointer-events:none}
.tk-thao.is-dap .tk-thao-dap{opacity:1;transform:none}
.tk-dau{text-align:center;margin:0 0 16px}
.tk-eb{margin:0 0 2px;font-size:13px;font-weight:600;letter-spacing:.02em;color:var(--accent)}
.tk-box .tk-dau h2,.tk-inline .tk-dau h2{margin:0 0 6px;font-size:23px;font-weight:700;line-height:1.25;letter-spacing:-.01em}
.tk-loi{margin:0;font-size:16px;line-height:1.5;color:var(--ink)}
.tk-em{font-weight:600;overflow-wrap:anywhere}
.tk-dau+.tk-google,.tk-dau+.tk-note{margin-top:0}
.tk-dlg .tk-google,.tk-inline .tk-google{min-height:48px;border:1.5px solid #8A93A3;border-radius:10px;font-weight:600}
.tk-dlg .tk-google:hover,.tk-inline .tk-google:hover{border-color:var(--accent);background:#F6F8FF}
.tk-dlg .tk-or,.tk-inline .tk-or{margin:14px 0 0;font-size:13.5px}
.tk-dlg form label,.tk-inline form label{font-weight:600;font-size:15px;margin:12px 0 6px}
.tk-dlg form input[type="email"],.tk-dlg form input[type="text"],.tk-inline form input[type="email"],.tk-inline form input[type="text"]{border:1.5px solid #8A93A3;border-radius:10px;padding:11px 14px}
.tk-dlg form input:focus,.tk-inline form input:focus{border-color:var(--accent);outline:3px solid rgba(36,72,255,.22);outline-offset:0}
.tk-dlg form input[aria-invalid="true"],.tk-inline form input[aria-invalid="true"]{border-color:#B42318}
.tk-dlg form .btn,.tk-inline form .btn{border-radius:10px;font-weight:600}
.tk-dlg #tk-ma,.tk-inline #tk-ma{max-width:none;text-align:center}
.tk-phu{margin:10px 0 0;text-align:center}
.tk-phu .tk-link{font-weight:500;color:var(--muted);text-decoration-color:rgba(91,98,111,.5)}
.tk-phu .tk-link:hover{color:var(--ink)}
.tk-moi{margin-top:14px;padding-top:12px;border-top:1px solid #EDF0F5;font-size:12.5px;text-align:center}
.tk-inline .tk-moi{border-top:0;padding-top:0}
.tk-dlg .tk-note,.tk-inline .tk-note{border-radius:8px;border-left-width:3px}
.tk-auth-card .tk-thao{margin-top:-4px}
@media (max-width:560px){.tk-box{padding:16px 16px 18px}.tk-thao-btn{width:92px;height:86px}.tk-thao-note{left:calc(50% + 28px);width:28px;height:24px;padding:5px 5px 0}.tk-thao-dap{right:calc(50% + 42px)}.tk-box .tk-dau h2,.tk-inline .tk-dau h2{font-size:21px}.tk-loi{font-size:15.5px}}
@media (prefers-reduced-motion:reduce){.tk-thao-btn.is-nghieng img{animation:none}.tk-thao-dap{transition:none}}
.tk-save-note{flex:1 1 220px;min-width:0}
.tk-save-err{flex:1 1 100%;margin:0}
.tk-work{scroll-margin-top:84px}
.thao-an-savenote{margin:8px 0 0}

/* ----- gương mặt Thạo (Nét T): ảnh có chiều sâu dựng từ mô hình 3D gốc, dự phòng là biểu tượng SVG ----- */
.tk-face{position:relative;display:inline-block;flex:none;width:112px;height:112px;vertical-align:middle;isolation:isolate}
.tk-face img{display:block;width:100%;height:100%}
.tk-face-3d{position:absolute;inset:-6%;overflow:hidden;opacity:0;pointer-events:none}
.tk-face .tk-face-3d img{display:block;height:100%;width:1200%;max-width:none}
.tk-face.is-3d .tk-face-3d{opacity:1}
.tk-face.is-3d>img{opacity:0}
.tk-face.is-3d::after{content:"";position:absolute;left:24%;right:24%;bottom:-3%;height:8%;border-radius:50%;background:radial-gradient(closest-side,rgba(23,51,201,.26),rgba(23,51,201,0));z-index:-1}
.tk-face-tap-trung .tk-face-3d img{transform:translateX(-66.6667%)}
.tk-face-luu .tk-face-3d img{transform:translateX(-75%)}
.tk-face-loi .tk-face-3d img{transform:translateX(-83.3333%)}
.tk-face-goi-y .tk-face-3d img{transform:translateX(-91.6667%)}
.tk-face-nho{width:56px;height:56px}
.tk-face-mini{width:40px;height:40px}
.tk-face-mini::after{display:none}
.tk-face-ok{position:absolute;right:-5px;bottom:-3px;width:22px;height:22px;border-radius:50%;background:var(--hi);border:2px solid #fff}
.tk-face-ok::after{content:"";position:absolute;left:6px;top:2px;width:5px;height:10px;border:solid var(--ink);border-width:0 2.5px 2.5px 0;transform:rotate(45deg)}
/* Chào: nghiêng đầu và cười khoảng một giây rồi dừng ở dáng nghỉ. Chạy một lần, không lặp. */
@keyframes tk-chao{0%{transform:translateX(0)}8%{transform:translateX(-8.3333%)}17%{transform:translateX(-16.6667%)}27%{transform:translateX(-25%)}62%{transform:translateX(-33.3333%)}72%{transform:translateX(-41.6667%)}82%{transform:translateX(-50%)}91%{transform:translateX(-58.3333%)}100%{transform:translateX(0)}}
@keyframes tk-chao-2d{0%{transform:none}28%{transform:rotate(-7deg) scale(1.03)}62%{transform:rotate(-7deg) scale(1.03)}100%{transform:none}}
@keyframes tk-gat{0%{transform:none}35%{transform:translateY(7%) rotate(2deg)}70%{transform:translateY(-2%)}100%{transform:none}}
.tk-face-vao .tk-face-3d img,.tk-face-vui .tk-face-3d img{animation:tk-chao 1.05s step-end 1}
.tk-face-vao .tk-face-3d img{animation-delay:.25s}
.tk-face-vao:not(.is-3d)>img,.tk-face-vui:not(.is-3d)>img{animation:tk-chao-2d 1.05s ease-in-out 1}
.tk-face-luu{animation:tk-gat .7s ease-out 1 .1s}
.tk-face-btn{flex:none;border:0;background:none;padding:6px;margin:-6px -6px -6px 0;border-radius:50%;cursor:pointer;line-height:0;transition:transform var(--motion) ease}
.tk-face-btn:hover{transform:scale(1.04)}
.tk-face-btn:active{transform:scale(.97)}
@media (prefers-reduced-motion:reduce){.tk-face,.tk-face img{animation:none!important}.tk-face-btn{transition:none}.tk-face-btn:hover,.tk-face-btn:active{transform:none}}

/* ----- lời chào sau đăng nhập ----- */
.tk-st-row{display:flex;align-items:center;gap:14px;margin:0 40px 10px 0}
.tk-st-row h2{margin:0!important}
.tk-st-row .tk-lead{margin:4px 0 0}
.tk-inline .tk-st-row{margin-right:0}
.tk-chao-nhan{display:flex;align-items:center;gap:7px;margin:0 44px 12px 0;font-size:13px;font-weight:700;color:var(--muted)}
.tk-inline .tk-chao-nhan{margin-right:0}
.tk-tick{position:relative;flex:none;width:16px;height:16px;border-radius:50%;background:var(--hi)}
.tk-tick::after{content:"";position:absolute;left:5.5px;top:2.5px;width:3.5px;height:7.5px;border:solid var(--ink);border-width:0 2px 2px 0;transform:rotate(45deg)}
.tk-chao-dau{display:flex;align-items:center;justify-content:space-between;gap:14px}
.tk-chao-dau>div{flex:1;min-width:0}
.tk-box h2.tk-chao-h,.tk-inline h2.tk-chao-h{margin:0 0 8px;font-size:clamp(25px,6.4vw,31px);line-height:1.14;overflow-wrap:anywhere}
.tk-chao-ten{overflow-wrap:anywhere}
.tk-chao .tk-lead{margin:0;color:var(--muted)}
.tk-chao-gon .tk-chao-dau{justify-content:flex-start}
.tk-box .tk-chao-gon h2.tk-chao-h,.tk-inline .tk-chao-gon h2.tk-chao-h{margin:0;font-size:clamp(20px,5.2vw,23px);line-height:1.22}
.tk-chao-dap{margin:8px 0 0;font-size:14.5px;font-weight:600;color:var(--accent-deep)}
.tk-chao-dap[hidden]{display:none}
.tk-chao-hoi{margin:16px 0 0;font-size:17px;font-weight:700;overflow-wrap:anywhere}
.tk-chao-viec{margin:14px 0 0;padding:11px 14px;border-left:4px solid var(--hi);background:var(--soft)}
.tk-chao-viec span{display:block;font-size:13.5px;color:var(--muted)}
.tk-chao-viec strong{display:block;margin-top:2px;overflow-wrap:anywhere}
.tk-chao-act{margin-top:12px}
.tk-chao-act .btn{min-height:48px;padding-inline:22px}
.tk-chao-phu{margin-top:10px;padding-top:8px;border-top:1px solid var(--line);justify-content:space-between}
.tk-chao [data-tk-xh-o][hidden]{display:none}

.tk-xh{margin:8px 0 0;padding:4px 14px 14px;border:2px solid var(--accent);border-radius:8px}
.tk-page .tk-xh{border:0;padding:0;max-width:440px}
.tk-xh select{width:100%;min-height:48px;font:inherit;font-size:17px;padding:10px 14px;border:2px solid var(--ink);border-radius:var(--rb);background:#fff;color:var(--ink)}
.tk-xh-xem{margin:12px 0 0;font-size:15px;overflow-wrap:anywhere}
.tk-page .tk-xh .btn{margin-top:14px}
.tk-strip-chao{display:flex;align-items:center;gap:10px;margin:0 0 10px}
.tk-strip-chao p{margin:0;min-width:0;font-weight:700;font-size:17px;overflow-wrap:anywhere}
.tk-strip-dau{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px 14px;margin:0 0 8px;padding:12px 14px;border:1px solid var(--line);border-left:4px solid var(--hi);border-radius:8px;background:#fff}
.tk-strip-dau p{margin:0;flex:1 1 220px;min-width:0;font-weight:600;overflow-wrap:anywhere}
.tk-strip-dau small{display:block;font-size:12.5px;font-weight:700;color:var(--muted)}
.tk-strip-moi{margin:0}
/* Tên dài: chữ lời chào nhỏ lại để nút chính vẫn nằm trong màn hình. */
.tk-box .tk-chao-dai h2.tk-chao-h,.tk-inline .tk-chao-dai h2.tk-chao-h{font-size:clamp(19px,5.2vw,23px);line-height:1.22}
@media (max-width:420px){.tk-chao .tk-face:not(.tk-face-nho){width:88px;height:88px}.tk-chao-act .btn{width:100%;justify-content:center}.tk-chao-dai .tk-face:not(.tk-face-nho){width:60px;height:60px}.tk-chao-dai .tk-chao-dau{align-items:flex-start}}
@media (max-width:340px){.tk-chao .tk-face:not(.tk-face-nho){width:72px;height:72px}.tk-chao-dai .tk-face:not(.tk-face-nho){width:52px;height:52px}}

/* ----- 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}}
/* v0.9.73: điều Thạo nhớ */
.tk-nho-them{flex:1 1 100%;min-width:0;overflow-wrap:anywhere}
.tk-page .tk-nho input{width:100%;min-height:48px;font:inherit;font-size:17px;padding:10px 14px;border:2px solid var(--ink);border-radius:var(--rb);background:#fff;color:var(--ink)}
.tk-page .tk-nho label{display:block;margin-top:12px;font-weight:700}
/* Nhãn loại tài khoản (máy chủ quyết định, chỉ để hiển thị). */
.tk-loai{display:inline-block;margin-left:6px;padding:1px 7px;border-radius:999px;font-size:11.5px;font-weight:700;line-height:1.5;vertical-align:1px;white-space:nowrap;background:rgba(255,255,255,.18);color:inherit;border:1px solid rgba(255,255,255,.45)}
.tk-loai-ncc{background:#FFE58A;color:#3A2A00;border-color:#FFE58A}
.tk-loai-ncc-dung{background:#EDEDED;color:#333;border-color:#CFCFCF}
.tk-dl .tk-loai,.tk-card .tk-loai{margin-left:0;background:var(--soft,#F3F1EC);color:var(--ink,#1A1A1A);border-color:var(--line,#DDD)}
.tk-dl .tk-loai-ncc,.tk-card .tk-loai-ncc{background:#FFE58A;color:#3A2A00;border-color:#E9C94A}
.mast-acct .tk-loai{margin:0 2px 0 0;background:var(--soft,#F3F1EC);color:var(--ink,#1A1A1A);border-color:var(--line,#DDD)}
.mast-acct .tk-loai-ncc{background:#FFE58A;color:#3A2A00;border-color:#E9C94A}
@media (max-width:900px){html[data-tk="in"] .mast-acct .tk-loai{display:inline-block!important}}
@media (min-width:901px) and (max-width:1440px){.navbar.is-stuck .nav-acct .tk-loai{display:none}}
/* ----- Lưu & theo dõi bài cập nhật hằng tháng ----- */
.ky-nhac{display:flex;align-items:flex-start;gap:14px;margin:18px 0 0;padding:14px 16px;border-radius:12px;background:#fff;color:var(--ink);box-shadow:0 1px 0 rgba(16,19,26,.06)}
.ky-nhac[hidden]{display:none}
.ky-nhac-thao{flex:none;width:64px;height:59px;object-fit:contain}
.ky-nhac-main{flex:1;min-width:0}
.ky-nhac-h{margin:0 0 2px;font-weight:700;font-size:15px;color:var(--accent-deep)}
.ky-nhac-t{margin:0 0 10px;font-size:15px;line-height:1.5}
.ky-nhac-act{display:flex;flex-wrap:wrap;align-items:center;gap:6px 14px}
.ky-nhac-act .btn{min-height:44px;border-radius:10px;font-weight:600}
.ky-nhac-act .btn[disabled]{opacity:.7;cursor:progress}
.ky-ok{margin:0;display:flex;align-items:center;gap:8px;font-size:15px;flex-wrap:wrap}
.ky-ok a{color:var(--accent);font-weight:600}
.ky-email{display:flex;align-items:center;gap:8px;min-height:44px;font-size:15px;cursor:pointer;flex-basis:100%}
.ky-email input{width:20px;height:20px;accent-color:var(--accent);margin:0}
.ky-phu{margin:0;font-size:13.5px;color:var(--muted);flex-basis:100%}
.ky-nhac .tk-err{flex-basis:100%;margin:4px 0 0}
.is-theo-doi .ky-nhac-thao{width:44px;height:41px}
@media (max-width:560px){.ky-nhac{gap:10px;padding:12px}.ky-nhac-thao{width:48px;height:44px}.ky-nhac-act .btn{width:100%;justify-content:center}}
.tk-nhan{display:inline-block;padding:2px 8px;border-radius:6px;background:var(--soft);font-size:12.5px;font-weight:600}
.tk-nhan-moi{background:var(--hi);color:var(--ink)}
.tk-bai-thang p{margin:4px 0}
.tk-bai-thang .tk-actions{margin-top:8px}
.tk-noti.is-moi{background:#F6F8FF;border-radius:8px;padding:8px 10px}
.tk-noti p{margin:2px 0}
.tk-noti-diem{margin:4px 0;padding-left:20px;font-size:14px}
.tk-cham{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--accent);margin-right:6px;vertical-align:middle}
.tk-sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.ky-email-li{margin:0!important;min-height:44px;align-items:center!important}

/* ----- Chuông thông báo: "Bài mới hợp với bạn" và "Bài đã lưu có cập nhật" ----- */
.tk-bm-li{display:flex!important;align-items:center}
.tk-bm-btn{position:relative;display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;padding:0;border:0;border-radius:var(--rb);background:transparent;color:inherit;cursor:pointer}
.nav-acct .tk-bm-btn{color:#fff}
.tk-bm-btn:hover{background:rgba(255,255,255,.14)}
.tk-bm-btn:focus-visible{outline:3px solid #fff;outline-offset:1px}
.tk-bm-dot{position:absolute;top:5px;right:4px;min-width:18px;height:18px;padding:0 4px;border-radius:9px;background:#D92D20;color:#fff;font-size:11.5px;font-weight:800;line-height:18px;text-align:center;box-shadow:0 0 0 2px var(--accent)}
.tk-bm-dot[hidden]{display:none}
@media (max-width:900px){
  .mast-acct .tk-bm-btn{color:var(--accent-deep);vertical-align:middle}
  .mast-acct .tk-bm-btn:hover{background:var(--soft)}
  .mast-acct .tk-bm-btn:focus-visible{outline-color:var(--accent-deep)}
  .mast-acct .tk-bm-dot{box-shadow:0 0 0 2px #fff}
  html[data-tk="in"] .mast-acct .tk-bm-btn.mast-acct-in{display:inline-flex!important}
}
@media (max-width:359px){.mast-acct .tk-bm-btn{width:40px}}
.tk-bm-pan,.tk-bm-moi{position:fixed;z-index:60;width:380px;max-width:calc(100vw - 24px);max-height:calc(100vh - 96px);overflow:auto;padding:16px 18px 18px;border:1px solid var(--line);border-radius:var(--pill);background:#fff;color:var(--ink);box-shadow:0 14px 40px rgba(16,19,26,.22)}
.tk-bm-pan[hidden]{display:none}
.tk-bm-moi{right:16px;bottom:16px;width:440px}
@media (max-width:900px){.tk-bm-pan{left:12px!important;right:12px!important;width:auto}.tk-bm-moi{left:12px;right:12px;bottom:12px;width:auto;max-height:calc(100vh - 24px)}}
.tk-bm-h{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:6px}
.tk-bm-t{margin:0;font-size:18px;line-height:1.3}
.tk-bm-x{flex:none;width:40px;height:40px;border:0;border-radius:var(--rb);background:transparent;color:var(--ink);font-size:26px;line-height:1;cursor:pointer}
.tk-bm-x:hover{background:var(--soft)}
.tk-bm-x:focus-visible{outline:3px solid var(--accent);outline-offset:1px}
.tk-bm-g{padding-top:10px;border-top:1px solid var(--line);margin-top:8px}
.tk-bm-g h3{margin:0 0 8px;font-size:14.5px;letter-spacing:.01em}
.tk-bm-g p{margin:6px 0;font-size:14.5px}
.tk-bm-ds{list-style:none;margin:0;padding:0}
.tk-bm-i a{display:block;padding:9px 8px;margin:0 -8px;border-radius:var(--rb);color:var(--ink);text-decoration:none}
.tk-bm-i a:hover{background:var(--soft)}
.tk-bm-i a:hover .tk-bm-it{text-decoration:underline}
.tk-bm-i a:focus-visible{outline:3px solid var(--accent);outline-offset:-2px}
.tk-bm-it{display:block;font-size:14.5px;font-weight:700;line-height:1.35}
.tk-bm-im{display:block;margin-top:2px;color:var(--muted);font-size:12.5px}
.tk-bm-tag{display:inline-block;padding:0 6px;border-radius:3px;background:#FEE4E2;color:#B42318;font-weight:800}
.tk-bm-i.is-mo .tk-bm-it{color:var(--muted);font-weight:600}
.tk-bm-f{color:var(--muted);font-size:13px!important}
.tk-bm-form fieldset{margin:0 0 10px;padding:0;border:0}
.tk-bm-form legend{margin-bottom:6px;font-size:14px;font-weight:700}
.tk-bm-chips{display:flex;flex-wrap:wrap;gap:6px}
.tk-bm-chip{position:relative;display:inline-flex;align-items:center;min-height:36px;padding:0 12px;border:1px solid var(--line);border-radius:18px;background:#fff;font-size:13.5px;cursor:pointer}
.tk-bm-chip[hidden]{display:none}
.tk-bm-chip input{position:absolute;opacity:0;width:1px;height:1px}
.tk-bm-chip:has(input:checked){border-color:var(--accent-deep);background:#EEF2FF;color:var(--accent-deep);font-weight:700}
.tk-bm-chip:has(input:focus-visible){outline:3px solid var(--accent);outline-offset:1px}
.tk-bm-chip input:checked + span::before{content:"✓ "}
@media (prefers-reduced-motion:no-preference){.tk-bm-pan,.tk-bm-moi{animation:tk-bm-in .16s ease-out}@keyframes tk-bm-in{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:none}}}
/* Điện thoại: nhãn loại tài khoản một dòng riêng, chuông và "Việc của tôi" cùng một dòng (đầu trang không cao thêm). */
@media (max-width:900px){
  html[data-tk="in"] .mast-acct{white-space:nowrap;text-align:right}
  html[data-tk="in"] .mast-acct .tk-loai{display:block!important;width:max-content;margin:0 2px 0 auto}
  /* Lối Yêu cầu hỗ trợ (người nhận, điều phối) nằm trong chuông ở điện thoại để hàng thương hiệu không tràn ngang. */
  html[data-tk="in"] .mast-acct:has([data-bm-chuong]) [data-htr-noti]{display:none!important}
  html[data-tk="in"] .mast-acct .tk-bm-btn{width:40px;height:44px}
}
@media (max-width:359px){html[data-tk="in"] .mast-acct .tk-bm-btn{width:30px}}
@media (max-width:420px){
  html[data-tk="in"] .mast-acct .tk-bm-btn{width:32px}
  html[data-tk="in"] .mast-acct .tk-bm-dot{top:4px;right:-4px}
  html[data-tk="in"] .mast-acct a.mast-acct-in{padding:0 4px}
}
@media (max-width:359px){
  html[data-tk="in"] .mast-in{column-gap:4px}
  html[data-tk="in"] .mast-acct a.mast-acct-in{padding:0 2px;font-size:12.5px}
  html[data-tk="in"] .mast-acct .tk-bm-btn{width:28px}
}
/* RV-910: bước nhập mã, gợi ý tìm thư và lối đăng nhập Google cho Gmail */
.tk-tim-thu{margin:0 0 14px;padding:10px 12px;border-radius:8px;background:#FFF7E6;border:1px solid #F5D9A6;font-size:14.5px;line-height:1.5;color:var(--ink,#1a1a1a)}
.tk-ma-google{margin-top:16px;padding-top:14px;border-top:1px solid var(--line,#e5e7eb)}
.tk-ma-google .tk-fine{margin:0 0 10px}
.tk-ma-google .tk-google{width:100%}