:root {
  --primary: #1d6fd8;
  --primary-ink: color-mix(in srgb, var(--primary) 70%, #0b2545);
  --primary-soft: color-mix(in srgb, var(--primary) 11%, #fff);
  --primary-line: color-mix(in srgb, var(--primary) 22%, #fff);
  --ink: #15304f;
  --ink-2: #4f6680;
  --ink-3: #7d90a6;
  --line: #e2ebf5;
  --panel: rgba(255, 255, 255, .78);
  --card: #fff;
  --danger: #d23b3b;
  --font: "Segoe UI Variable Text", "Segoe UI", system-ui, -apple-system, Roboto, Arial, sans-serif;
  --display: "Segoe UI Variable Display", "Segoe UI", system-ui, Arial, sans-serif;
  --script: "Segoe Script", "Brush Script MT", "Lucida Handwriting", cursive;
}
* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body {
  font-family: var(--font); color: var(--ink); font-size: 14px; overflow: hidden;
  background:
    radial-gradient(1200px 260px at 50% 108%, color-mix(in srgb, var(--primary) 16%, transparent), transparent 70%),
    radial-gradient(900px 500px at 0% 0%, #f7fbff, transparent 60%),
    linear-gradient(180deg, #eef5fc 0%, #f3f8fd 60%, #e7f0fa 100%);
  user-select: none;
}
button { font: inherit; color: inherit; cursor: pointer; border: 0; background: none; }
input, select, textarea { font: inherit; color: var(--ink); }
:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
.i { width: 20px; height: 20px; flex: none; }

.app { height: 100vh; display: flex; flex-direction: column; }

/* ---------- đầu trang ---------- */
.topbar {
  -webkit-app-region: drag; position: relative; flex: none; height: 136px;
  display: flex; align-items: center; gap: 36px; padding: 0 48px;
  background: linear-gradient(90deg, #f6faff 0%, #eaf3fc 55%, #dcebf9 100%);
  border-bottom: 1px solid #fff; overflow: hidden;
}
.banner { position: absolute; inset: 0 0 0 45%; background-size: cover; background-position: center right; opacity: 0;
  -webkit-mask-image: linear-gradient(90deg, transparent 0%, #000 45%); mask-image: linear-gradient(90deg, transparent 0%, #000 45%); }
.banner.has { opacity: .85; }
.brand, .vdivider, .titles, .clock, .winctl { position: relative; }
.brand { display: flex; align-items: center; gap: 14px; }
.logo-mark { width: 84px; height: 74px; object-fit: contain; }
.logo-full { max-height: 84px; max-width: 330px; object-fit: contain; }
.brand-name { font-family: var(--display); font-size: 46px; font-weight: 800; color: var(--primary-ink); line-height: 1; letter-spacing: .5px; }
.brand-tag { font-size: 12.5px; color: var(--primary); letter-spacing: 1.2px; margin-top: 8px; font-weight: 600; }
.vdivider { width: 1px; height: 64px; background: #c9d9ea; }
.titles h1 { margin: 0; font-family: var(--display); font-size: 31px; font-weight: 700; color: #102f57; letter-spacing: .4px; }
.titles p { margin: 6px 0 0; font-size: 17px; color: #2a4466; }
.clock { margin-left: auto; margin-top: 26px; display: flex; gap: 14px; align-items: center; color: #183a63;
  padding: 10px 16px; border-radius: 14px; background: rgba(255, 255, 255, .55); backdrop-filter: blur(6px); }
.clock-ic .i { width: 30px; height: 30px; color: #2a4b75; }
#date { font-size: 15px; }
#time { font-family: var(--display); font-size: 27px; font-weight: 700; line-height: 1.15; }
.winctl { position: absolute; top: 8px; right: 10px; display: flex; gap: 2px; -webkit-app-region: no-drag; }
.winctl button { width: 46px; height: 34px; border-radius: 8px; display: grid; place-items: center; color: #1b3555; }
.winctl button:hover { background: rgba(255, 255, 255, .8); }
#btnClose:hover { background: #e81123; color: #fff; }
body.desktop-mode .winctl { display: none; }

/* ---------- thân ---------- */
.body { flex: 1; min-height: 0; display: grid; grid-template-columns: 236px minmax(0, 1fr) 370px; gap: 18px; padding: 22px 26px 0 0; }
body.is-settings .body { grid-template-columns: 236px minmax(0, 1fr); }
body.is-settings #side { display: none; }
#main, #side { min-height: 0; overflow-y: auto; padding-bottom: 18px; display: flex; flex-direction: column; gap: 16px; }
#main::-webkit-scrollbar, #side::-webkit-scrollbar, .set-body::-webkit-scrollbar { width: 8px; }
#main::-webkit-scrollbar-thumb, #side::-webkit-scrollbar-thumb, .set-body::-webkit-scrollbar-thumb { background: #cfdcea; border-radius: 8px; }

.sidebar { display: flex; flex-direction: column; padding: 0 0 18px 24px; min-height: 0; }
#nav { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.nav-it { width: 100%; height: 56px; display: flex; align-items: center; gap: 18px; padding: 0 16px; border-radius: 14px; font-size: 17px; color: #22406a; text-align: left; }
.nav-it .i { width: 26px; height: 26px; color: #2c5383; }
.nav-it:hover { background: rgba(255, 255, 255, .7); }
.nav-it.active { background: var(--primary-soft); color: var(--primary); font-weight: 600; box-shadow: inset 0 0 0 1px var(--primary-line); }
.nav-it.active .i { color: var(--primary); }
.slogan { margin-top: auto; padding: 0 0 10px 12px; color: var(--primary-ink); transform: rotate(-9deg); transform-origin: left bottom; }
.slogan p { margin: 0; font-family: var(--script); font-size: 22px; line-height: 1.45; }
.slogan svg { width: 150px; height: 22px; margin: 2px 0 0 36px; color: var(--primary-ink); }

/* ---------- khung ---------- */
.panel { background: var(--panel); border: 1px solid rgba(255, 255, 255, .9); border-radius: 16px; padding: 18px;
  box-shadow: 0 1px 0 rgba(255, 255, 255, .8) inset, 0 6px 22px -14px rgba(25, 70, 130, .35); }
.panel-h { display: flex; align-items: center; gap: 12px; margin: 2px 2px 16px; }
.panel-h .i { width: 26px; height: 26px; color: #1e3f6b; }
.panel-h h2 { margin: 0; font-size: 19px; font-weight: 600; color: #132f55; }

.grid { display: grid; gap: 14px; grid-template-columns: repeat(auto-fill, minmax(155px, 1fr)); }
.card { position: relative; background: var(--card); border: 1px solid var(--line); border-radius: 12px; text-align: center; cursor: pointer;
  display: flex; flex-direction: column; align-items: center; transition: border-color .15s, box-shadow .15s, transform .15s; }
.card:hover { border-color: var(--primary-line); box-shadow: 0 10px 24px -16px color-mix(in srgb, var(--primary) 80%, transparent); transform: translateY(-2px); }
.card:active { transform: translateY(0); }
.card h3 { margin: 0; font-size: 16.5px; font-weight: 600; color: #142c4c; }
.card p { margin: 0; color: var(--ink-2); font-size: 14px; line-height: 1.5; }

.tile { display: inline-grid; place-items: center; border-radius: 22%; color: #fff; flex: none;
  background: linear-gradient(150deg, color-mix(in srgb, var(--c) 72%, #fff), var(--c) 55%, color-mix(in srgb, var(--c) 80%, #000));
  box-shadow: 0 6px 14px -8px var(--c); }
.tile .i { width: 54%; height: 54%; stroke-width: 2; }
.tile-img { object-fit: contain; flex: none; }

.card-lg { padding: 22px 12px 16px; min-height: 226px; }
.card-lg h3 { margin-top: 18px; font-size: 17.5px; }
.card-lg p { margin: 8px 0 14px; max-width: 200px; }
.card-lg .go { margin-top: auto; width: 34px; height: 34px; border-radius: 50%; display: grid; place-items: center; color: var(--primary); border: 1.5px solid var(--primary-line); background: #fff; }
.card-lg .go .i { width: 18px; height: 18px; }
.card-lg:hover .go { background: var(--primary); color: #fff; border-color: var(--primary); }

.card-link, .card-sm { padding: 18px 14px 14px; gap: 6px; }
.card-link h3 { margin-top: 8px; }
.lnk-ic { color: var(--primary); height: 40px; display: grid; place-items: center; }
.lnk-ic .i { width: 40px; height: 40px; stroke-width: 1.6; }
.card-link .url { color: var(--primary); font-size: 13.5px; }
.card-sm { padding-top: 14px; gap: 4px; }
.card-sm h3 { margin-top: 8px; font-size: 15.5px; }
.card-sm p { font-size: 12.5px; color: var(--ink-3); }
.btn-open { margin-top: 10px; min-width: 100px; padding: 6px 14px; border-radius: 8px; background: var(--primary-soft); color: var(--primary); font-weight: 600; font-size: 14px; }
.card:hover .btn-open { background: var(--primary); color: #fff; }

.empty { display: flex; flex-direction: column; align-items: center; gap: 12px; padding: 60px 20px; text-align: center; color: var(--ink-2); }
.empty > .i { width: 44px; height: 44px; color: var(--primary); }
.empty p { max-width: 420px; margin: 0; line-height: 1.6; }

/* ---------- cột phải ---------- */
.side { padding: 16px; }
.side .panel-h { margin-bottom: 12px; }
.side .panel-h h2 { font-size: 17px; }
.side .panel-h .i { width: 24px; height: 24px; }
.side-box { background: #fff; border-radius: 12px; padding: 14px; border: 1px solid var(--line); }
.meet-head { display: flex; align-items: center; gap: 16px; margin-bottom: 14px; }
.meet-head b { display: block; font-size: 18px; font-weight: 600; }
.meet-head span { font-size: 14px; color: var(--ink-2); }
.cred { background: #f5f9fd; border-radius: 10px; padding: 2px 12px; }
.cred-row { display: flex; align-items: flex-start; gap: 12px; padding: 12px 0; }
.cred-row + .cred-row { border-top: 1px solid var(--line); }
.cred-row > .i { color: var(--primary-ink); margin-top: 6px; }
.cred-row > div { flex: 1; }
.cred-row > div { min-width: 0; }
.cl-top { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin-bottom: 2px; }
.meet-link { display: block; max-width: 100%; padding: 0; color: var(--primary); font-size: 14px; font-weight: 600; text-align: left;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.meet-link:hover { text-decoration: underline; }
.cred-row small { display: block; font-size: 13.5px; color: var(--ink-2); }
.cred-row strong { display: block; font-size: 21px; line-height: 1.25; font-weight: 600; user-select: text; }
.btn-copy { white-space: nowrap; flex: none; display: inline-flex; align-items: center; gap: 6px; padding: 6px 10px; border-radius: 8px; background: #fff; border: 1px solid var(--line); color: var(--primary); font-size: 13.5px; }
.btn-copy .i { width: 16px; height: 16px; }
.btn-copy:hover { border-color: var(--primary-line); background: var(--primary-soft); }
.btn-copy.mini { padding: 3px 6px; border: 0; font-size: 12px; background: none; }
.btn-copy.mini .i { width: 14px; height: 14px; }
.btn-primary { width: 100%; margin-top: 16px; height: 50px; border-radius: 10px; background: var(--primary); color: #fff; font-size: 18px; font-weight: 600;
  display: flex; align-items: center; justify-content: center; gap: 12px; box-shadow: 0 8px 18px -10px var(--primary); }
.btn-primary:hover { background: color-mix(in srgb, var(--primary) 88%, #000); }
.btn-primary.sm { width: auto; height: 38px; margin: 0; padding: 0 18px; font-size: 14.5px; gap: 8px; }
.btn-primary.sm .i { width: 18px; height: 18px; }

.contacts { padding: 6px 18px; }
.contact { padding: 12px 0; }
.contact + .contact { border-top: 1px solid var(--line); }
.c-title { display: flex; align-items: center; gap: 12px; font-size: 15px; margin-bottom: 6px; }
.c-title .i { color: var(--primary-ink); width: 18px; height: 18px; }
.c-title b { font-weight: 600; }
.c-row { display: flex; align-items: center; gap: 12px; padding: 3px 0 3px 30px; font-size: 14px; color: #253f60; user-select: text; text-align: left; }
.c-row .i { width: 16px; height: 16px; color: var(--primary); }
.c-row.link:hover span { color: var(--primary); text-decoration: underline; }
.c-note { padding: 2px 0 0 30px; font-size: 13px; color: var(--ink-2); }
.acc { padding: 10px 18px; }
.acc-row { display: grid; grid-template-columns: 92px 1fr auto; align-items: center; gap: 8px; padding: 6px 0; font-size: 14px; }
.acc-row span { color: var(--ink-2); }
.acc-row b { font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; user-select: text; }

/* ---------- chân trang ---------- */
.footer { flex: none; height: 52px; display: flex; align-items: center; justify-content: space-between; padding: 0 34px 0 66px; color: #2b4669; font-size: 14px; }
.footer > div { display: flex; align-items: center; gap: 10px; }
.footer .leaf { color: #3aa35b; width: 22px; height: 22px; }
#version { font-size: 13px; color: var(--ink-2); }
#version .i { width: 18px; height: 18px; }

/* ---------- cài đặt ---------- */
.settings { display: flex; flex-direction: column; min-height: 0; flex: 1; padding-bottom: 0; }
#main:has(.settings) { overflow: hidden; }
.set-head { display: flex; align-items: center; justify-content: space-between; }
.set-head .panel-h { margin: 0; }
.set-actions { display: flex; gap: 10px; }
.tabs { display: flex; gap: 4px; margin: 16px 0 0; border-bottom: 1px solid var(--line); }
.tab { padding: 10px 16px; border-radius: 10px 10px 0 0; color: var(--ink-2); font-weight: 500; border-bottom: 2px solid transparent; margin-bottom: -1px; }
.tab:hover { color: var(--ink); }
.tab.on { color: var(--primary); border-bottom-color: var(--primary); }
.set-body { flex: 1; min-height: 0; overflow-y: auto; padding: 20px 6px 24px 2px; }
.lead { margin: 0 0 16px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px 20px; align-items: start; max-width: 980px; }
.form-grid.g4 { grid-template-columns: 1.1fr 1fr 1.2fr 1.4fr; flex: 1; }
.span2 { grid-column: span 2; }
.fld { display: flex; flex-direction: column; gap: 6px; }
.fld > span { font-size: 13px; font-weight: 600; color: var(--ink-2); }
.fld small { color: var(--ink-3); font-size: 12.5px; line-height: 1.45; }
.fld.inline { flex-direction: row; align-items: center; gap: 10px; }
input[type=text], input:not([type]), input[type=password], input[type=number], select, textarea, .s-title {
  width: 100%; height: 38px; padding: 0 12px; border: 1px solid #d5e1ee; border-radius: 9px; background: #fff; outline: none; user-select: text; }
textarea { height: auto; padding: 9px 12px; resize: vertical; line-height: 1.5; }
input:focus, select:focus, textarea:focus { border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-soft); }
input[type=color] { width: 56px; height: 38px; padding: 3px; border: 1px solid #d5e1ee; border-radius: 9px; background: #fff; cursor: pointer; }
.chk { display: flex; align-items: center; gap: 10px; min-height: 38px; cursor: pointer; font-size: 14px; }
.chk input { width: 18px; height: 18px; accent-color: var(--primary); }
.img-pick { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.img-prev { width: 84px; height: 64px; border-radius: 10px; border: 1px dashed #c5d5e6; display: grid; place-items: center; background: #f7fafd; overflow: hidden; }
.img-prev.wide { width: 220px; }
.img-prev img { max-width: 100%; max-height: 100%; object-fit: contain; }
.img-prev em { font-size: 12px; color: var(--ink-3); font-style: normal; }

.btn-soft, .btn-ghost { display: inline-flex; align-items: center; gap: 8px; height: 38px; padding: 0 14px; border-radius: 9px; font-weight: 500; font-size: 14px; white-space: nowrap; }
.btn-soft { background: var(--primary-soft); color: var(--primary); }
.btn-soft:hover { background: var(--primary-line); }
.btn-ghost { border: 1px solid #d5e1ee; background: #fff; color: var(--ink); }
.btn-ghost:hover { border-color: var(--primary-line); }
.btn-ghost.danger, .ib.danger:hover { color: var(--danger); }
.btn-soft .i, .btn-ghost .i { width: 17px; height: 17px; }
.btn-soft.add { margin-top: 10px; }

.s-sec { border: 1px solid var(--line); background: #fff; border-radius: 12px; padding: 14px; margin-bottom: 14px; max-width: 1100px; }
.s-sec.row { display: flex; gap: 14px; align-items: flex-end; }
.s-sec-h { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; padding-bottom: 12px; border-bottom: 1px solid var(--line); }
.s-sec-h .s-title { flex: 1 1 220px; font-weight: 600; font-size: 15px; }
.s-sec-h select { width: auto; }
.row-btns { display: flex; gap: 2px; margin-left: auto; }
.ib { width: 34px; height: 34px; border-radius: 8px; display: grid; place-items: center; color: var(--ink-2); }
.ib:hover { background: var(--primary-soft); color: var(--primary); }
.ib .i { width: 18px; height: 18px; }
.s-items { display: flex; flex-direction: column; }
.s-item { display: flex; align-items: center; gap: 14px; padding: 10px 4px; border-bottom: 1px solid #f0f4f9; }
.s-item-txt { flex: 1; min-width: 0; }
.s-item-txt b { display: block; font-weight: 600; }
.s-item-txt small { display: flex; align-items: center; gap: 8px; color: var(--ink-3); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; margin-top: 2px; }
.badge { flex: none; font-size: 11.5px; padding: 1px 8px; border-radius: 20px; background: #eef3f9; color: var(--ink-2); }
.sub { margin: 28px 0 6px; font-size: 16px; font-weight: 600; color: #132f55; }
.log-bar { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; margin: 24px 0 14px; padding-top: 18px; border-top: 1px solid var(--line); }
.log-bar select { width: auto; }
.log-bar input { flex: 1 1 240px; width: auto; }
.btn-soft:disabled { opacity: .5; cursor: default; }
.log-sum { display: flex; flex-wrap: wrap; gap: 10px 28px; align-items: baseline; padding: 14px 18px; margin-bottom: 14px; background: #fff; border: 1px solid var(--line); border-radius: 12px; }
.log-sum div { display: flex; align-items: baseline; gap: 6px; }
.log-sum b { font-size: 22px; font-weight: 700; color: var(--primary-ink); }
.log-sum .bad b { color: var(--danger); }
.log-sum span { color: var(--ink-2); }
.log-sum p { flex-basis: 100%; margin: 0; color: var(--ink-2); font-size: 13.5px; }
.log-sess { background: #fff; border: 1px solid var(--line); border-radius: 12px; margin-bottom: 10px; max-width: 1100px; }
.log-sess summary { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; padding: 12px 16px; cursor: pointer; list-style: none; }
.log-sess summary::-webkit-details-marker { display: none; }
.log-sess summary::before { content: ""; width: 7px; height: 7px; border-right: 2px solid var(--ink-3); border-bottom: 2px solid var(--ink-3); transform: rotate(-45deg); transition: transform .15s; }
.log-sess[open] summary::before { transform: rotate(45deg); }
.log-sess summary span { color: var(--ink-3); font-size: 13px; }
.log-tbl { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.log-tbl td { padding: 7px 16px; border-top: 1px solid #f0f4f9; vertical-align: top; }
.log-tbl .lt { width: 84px; color: var(--ink-3); font-variant-numeric: tabular-nums; }
.log-tbl td:nth-child(2) { width: 220px; }
.log-tbl .ld { color: #253f60; word-break: break-all; user-select: text; }
.tag { display: inline-block; padding: 2px 9px; border-radius: 20px; font-size: 12px; font-weight: 600; white-space: nowrap; }
.tag.ok { background: #e3f5ea; color: #1d7a43; }
.tag.err { background: #fde7e7; color: #b42727; }
.tag.warn { background: #fff3dc; color: #9a5b00; }
.tag.info { background: var(--primary-soft); color: var(--primary); }
.tag.muted { background: #eef3f9; color: var(--ink-2); }
.sub-block .sub { margin-top: 8px; }
.sub-block .lead { margin-bottom: 10px; }
.xl-row { display: grid; grid-template-columns: 1fr 1.6fr auto; gap: 12px; align-items: end; margin-bottom: 10px; }
.xl-row .row-btns { padding-bottom: 2px; }
.sys-actions { display: flex; gap: 10px; margin: 24px 0 12px; flex-wrap: wrap; }
.muted { color: var(--ink-3); }
.small { font-size: 12.5px; line-height: 1.6; user-select: text; }

/* ---------- hộp thoại ---------- */
.modal { position: fixed; inset: 0; background: rgba(16, 38, 66, .35); backdrop-filter: blur(3px); display: grid; place-items: center; z-index: 50; padding: 24px; }
.modal[hidden] { display: none; }
.dlg { width: min(760px, 100%); max-height: 100%; display: flex; flex-direction: column; background: #fff; border-radius: 16px; box-shadow: 0 30px 70px -20px rgba(10, 40, 80, .5); animation: pop .16s ease-out; }
.dlg.sm { width: 380px; }
@keyframes pop { from { transform: scale(.97); opacity: 0; } }
.dlg-h { display: flex; align-items: center; justify-content: space-between; padding: 18px 22px 0; }
.dlg-h h3 { margin: 0; font-size: 18px; }
.dlg-b { padding: 18px 22px; overflow-y: auto; }
.dlg-f { display: flex; gap: 10px; padding: 14px 22px; border-top: 1px solid var(--line); }
.sp { flex: 1; }
.with-btn { display: flex; gap: 8px; }
.icon-edit { display: flex; gap: 22px; margin-top: 20px; padding: 16px; border-radius: 12px; background: #f6f9fd; }
.icon-prev { display: flex; flex-direction: column; align-items: center; gap: 8px; width: 96px; flex: none; }
.icon-prev small { color: var(--ink-3); font-size: 12px; }
.icon-ctl { flex: 1; display: flex; flex-direction: column; gap: 12px; }
.btn-row { display: flex; gap: 8px; flex-wrap: wrap; }
.glyphs { display: grid; grid-template-columns: repeat(11, 1fr); gap: 4px; }
.glyph { aspect-ratio: 1; border-radius: 8px; display: grid; place-items: center; color: var(--ink-2); background: #fff; border: 1px solid var(--line); }
.glyph:hover { color: var(--primary); }
.glyph.on { background: var(--primary); color: #fff; border-color: var(--primary); }
.pin { text-align: center; font-size: 22px; letter-spacing: 8px; height: 48px !important; }

.toast { position: fixed; left: 50%; bottom: 70px; transform: translate(-50%, 20px); background: #13325a; color: #fff; padding: 10px 18px; border-radius: 10px;
  font-size: 14px; opacity: 0; pointer-events: none; transition: .2s; z-index: 60; max-width: 70vw; box-shadow: 0 10px 30px -10px rgba(0, 0, 0, .4); }
.toast.show { opacity: 1; transform: translate(-50%, 0); }
.toast.err { background: #a52a2a; }

/* ---------- màn hình nhỏ ---------- */
@media (max-width: 1360px) {
  .body { grid-template-columns: 210px minmax(0, 1fr) 350px; }
  .nav-it { font-size: 16px; gap: 14px; }
  body.is-settings .body { grid-template-columns: 210px minmax(0, 1fr); }
  .topbar { gap: 24px; padding: 0 32px; }
  .brand-name { font-size: 38px; }
  .titles h1 { font-size: 26px; }
  .titles p { font-size: 15px; }
  .grid { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); }
  .card h3 { font-size: 15.5px; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; animation: none !important; } }