/* huelightmedia - giao diện nền. Sắc xanh ultramarine lấy từ bột màu hội họa. */
:root {
    --ink: #14181f;
    --paper: #f4f5f8;
    --surface: #ffffff;
    --line: #d8dce5;
    --muted: #5b6372;
    --ultra: #2a3bc4;
    --ultra-dark: #1f2c99;
    --ultra-tint: #e8ebfb;
    --madder: #b4334b;
    --madder-tint: #f8e6ea;
    --ochre: #8a610c;
    --ochre-tint: #f6ecd2;
    --green: #1f7a4d;
    --green-tint: #e0f1e8;
    --font-body: 'Instrument Sans', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
    --font-display: 'Newsreader', Georgia, 'Times New Roman', serif;
    --radius: 6px;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
    margin: 0;
    font: 400 16px/1.55 var(--font-body);
    color: var(--ink);
    background: var(--paper);
}
img { max-width: 100%; display: block; }
a { color: var(--ultra); text-underline-offset: 2px; }
a:hover { color: var(--ultra-dark); }
:focus-visible { outline: 3px solid var(--ultra); outline-offset: 2px; }
h1, h2, h3 { font-family: var(--font-display); font-weight: 600; line-height: 1.15; margin: 0 0 .5em; }
h1 { font-size: clamp(2rem, 4vw, 3rem); }
h2 { font-size: 1.6rem; }
h3 { font-size: 1.2rem; }
p { margin: 0 0 1em; }
.muted { color: var(--muted); }
.small { font-size: .875rem; }
.wrap { width: min(1120px, 100% - 2rem); margin-inline: auto; }
.skip { position: absolute; inset-inline-start: -999px; top: 0; background: var(--ink); color: #fff; padding: .5rem 1rem; z-index: 99; }
.skip:focus { inset-inline-start: 0; }
.stack > * + * { margin-top: 1rem; }
.row { display: flex; gap: .75rem; flex-wrap: wrap; align-items: center; }

/* Header / footer */
.site-header { background: var(--surface); border-bottom: 1px solid var(--line); }
.site-header .bar { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: 64px; flex-wrap: wrap; }
.brand { font: 600 1.5rem var(--font-display); letter-spacing: .02em; color: var(--ink); text-decoration: none; }
.nav { display: flex; align-items: center; gap: 1.25rem; flex-wrap: wrap; }
.nav a { color: var(--ink); text-decoration: none; font-weight: 500; }
.nav a:hover { color: var(--ultra); }
.nav .is-active { color: var(--ultra); box-shadow: 0 2px 0 var(--ultra); }
.site-footer { margin-top: 4rem; padding: 2rem 0; border-top: 1px solid var(--line); color: var(--muted); font-size: .9rem; }
.site-footer .wrap { display: flex; gap: 1rem 2rem; flex-wrap: wrap; justify-content: space-between; }
main { min-height: 60vh; }
.page { padding: 2.5rem 0; }

/* Buttons & forms */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: .4rem;
    padding: .6rem 1.1rem; border: 1px solid var(--ink); border-radius: var(--radius);
    background: var(--ink); color: #fff; font: 500 .95rem var(--font-body);
    text-decoration: none; cursor: pointer;
}
.btn:hover { background: #000; color: #fff; }
.btn-primary { background: var(--ultra); border-color: var(--ultra); }
.btn-primary:hover { background: var(--ultra-dark); border-color: var(--ultra-dark); }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn-ghost:hover { background: var(--surface); color: var(--ink); border-color: var(--ink); }
.btn-danger { background: var(--madder); border-color: var(--madder); }
.btn-danger:hover { background: #8f2639; border-color: #8f2639; }
.btn-sm { padding: .3rem .7rem; font-size: .85rem; }
.btn-light { background: #fff; color: var(--ultra-dark); border-color: #fff; }
.btn-light:hover { background: var(--ultra-tint); color: var(--ultra-dark); }
.btn-outline-light { background: transparent; color: #fff; border-color: rgba(255,255,255,.7); }
.btn-outline-light:hover { background: rgba(255,255,255,.12); color: #fff; }
.link-btn { background: none; border: 0; padding: 0; font: inherit; color: var(--ink); cursor: pointer; font-weight: 500; }
.link-btn:hover { color: var(--ultra); }
.inline { display: inline; margin: 0; }

.field { margin-bottom: 1.1rem; }
.field label { display: block; font-weight: 600; margin-bottom: .3rem; }
.field .hint { font-size: .85rem; color: var(--muted); margin-top: .25rem; }
input[type=text], input[type=email], input[type=url], input[type=search], input[type=password], select, textarea {
    width: 100%; padding: .55rem .7rem; border: 1px solid var(--line); border-radius: var(--radius);
    background: var(--surface); font: inherit; color: var(--ink);
}
textarea { min-height: 120px; resize: vertical; }
input:focus, select:focus, textarea:focus { border-color: var(--ultra); }
.check { display: flex; gap: .6rem; align-items: flex-start; }
.check input { margin-top: .3rem; }

.alert { padding: .75rem 1rem; border-radius: var(--radius); margin: 0 0 1rem; border: 1px solid; }
.alert-success { background: var(--green-tint); border-color: #b5dcc8; color: #14563a; }
.alert-error { background: var(--madder-tint); border-color: #e9bcc5; color: #7d1f31; }
.alert-info { background: var(--ultra-tint); border-color: #c3caf3; color: var(--ultra-dark); }

.badge { display: inline-block; padding: .1rem .55rem; border-radius: 99px; font-size: .78rem; font-weight: 600; background: var(--paper); border: 1px solid var(--line); color: var(--muted); white-space: nowrap; }
.badge-ok { background: var(--green-tint); border-color: #b5dcc8; color: #14563a; }
.badge-warn { background: var(--ochre-tint); border-color: #e7d29a; color: var(--ochre); }
.badge-bad { background: var(--madder-tint); border-color: #e9bcc5; color: #7d1f31; }
.badge-info { background: var(--ultra-tint); border-color: #c3caf3; color: var(--ultra-dark); }

.avatar { width: 48px; height: 48px; border-radius: 50%; object-fit: cover; background: var(--ultra-tint); flex: none; }
.avatar-text { display: inline-flex; align-items: center; justify-content: center; font-weight: 600; color: var(--ultra-dark); }
.avatar-lg { width: 96px; height: 96px; font-size: 1.8rem; }
.avatar-sm { width: 32px; height: 32px; font-size: .8rem; }

/* Trang chủ */
.hero { background: var(--ultra); color: #fff; padding: clamp(3rem, 8vw, 6rem) 0; }
.hero h1 { max-width: 16ch; font-size: clamp(2.4rem, 6vw, 4.4rem); margin-bottom: 1rem; }
.hero p { max-width: 52ch; font-size: 1.15rem; color: #dfe3fb; }
.section { padding: 3rem 0 0; }
.section-head { display: flex; justify-content: space-between; align-items: baseline; gap: 1rem; margin-bottom: 1.25rem; }
.cols { display: grid; gap: 2rem; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.cols h3 { margin-bottom: .3rem; }

.member-grid { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); }
.member-card { display: block; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.1rem; color: inherit; text-decoration: none; }
.member-card:hover { border-color: var(--ultra); }
.member-card .top { display: flex; gap: .8rem; align-items: center; margin-bottom: .6rem; }
.member-card h3 { margin: 0; font-size: 1.15rem; }
.member-card p { margin: 0; color: var(--muted); font-size: .92rem; }

.profile-head { display: flex; gap: 1.5rem; align-items: center; flex-wrap: wrap; margin-bottom: 2rem; }
.profile-head h1 { margin: 0; }
.post-grid { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }
.post-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.post-card .body { padding: .9rem 1rem; }
.empty { border: 1px dashed var(--line); border-radius: var(--radius); padding: 2rem; text-align: center; color: var(--muted); background: var(--surface); }

.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.5rem; }
.narrow { max-width: 560px; }
.login-choices { display: grid; gap: .75rem; margin: 1.5rem 0; }
.login-choices .btn { justify-content: flex-start; padding: .9rem 1.1rem; }
.prose { max-width: 70ch; }
.prose h2 { margin-top: 2rem; font-size: 1.35rem; }
.prose li { margin-bottom: .35rem; }

/* Pagination */
.pagination { display: flex; gap: .35rem; flex-wrap: wrap; margin-top: 1.25rem; }
.pagination a, .pagination span { padding: .3rem .7rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); text-decoration: none; color: var(--ink); font-size: .9rem; }
.pagination .current { background: var(--ink); color: #fff; border-color: var(--ink); }

/* Admin */
.admin-shell { display: grid; grid-template-columns: 230px 1fr; min-height: 100vh; }
.admin-side { background: var(--ink); color: #dfe2ea; padding: 1.25rem 0; }
.admin-side .brand { color: #fff; display: block; padding: 0 1.25rem 1rem; }
.admin-side .who { padding: 0 1.25rem 1rem; border-bottom: 1px solid #2c323d; margin-bottom: .75rem; font-size: .85rem; color: #9aa1b0; }
.admin-side nav a { display: block; padding: .5rem 1.25rem; color: #dfe2ea; text-decoration: none; border-inline-start: 3px solid transparent; }
.admin-side nav a:hover { background: #1d222c; color: #fff; }
.admin-side nav a.is-active { border-inline-start-color: #8d9bff; background: #1d222c; color: #fff; }
.admin-side .nav-foot { padding: 1rem 1.25rem 0; margin-top: .75rem; border-top: 1px solid #2c323d; display: grid; gap: .4rem; }
.admin-side .nav-foot a, .admin-side .nav-foot .link-btn { color: #9aa1b0; padding: 0; border: 0; text-align: start; }
.admin-side .nav-foot a:hover, .admin-side .nav-foot .link-btn:hover { color: #fff; background: none; }
.admin-main { padding: 2rem; min-width: 0; }
.admin-main h1 { font-size: 2rem; }
.toolbar { display: flex; gap: .75rem; flex-wrap: wrap; margin-bottom: 1.25rem; align-items: center; }
.toolbar input[type=search] { width: 260px; max-width: 100%; }
.toolbar select { width: auto; }

.stats { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); margin-bottom: 2rem; }
.stat { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 1rem 1.1rem; }
.stat b { display: block; font: 600 2rem var(--font-display); line-height: 1.1; }
.stat span { color: var(--muted); font-size: .9rem; }
.stat.is-alert { border-color: var(--madder); }

.table-wrap { overflow-x: auto; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); }
table.table { width: 100%; border-collapse: collapse; font-size: .92rem; }
.table th, .table td { text-align: start; padding: .6rem .8rem; border-bottom: 1px solid var(--line); vertical-align: middle; }
.table th { background: #fafbfc; font-weight: 600; white-space: nowrap; }
.table tr:last-child td { border-bottom: 0; }
.table .actions { display: flex; gap: .4rem; align-items: center; flex-wrap: wrap; }
.table select { width: auto; padding: .3rem .4rem; font-size: .88rem; }
.table .who { display: flex; gap: .6rem; align-items: center; }
.table .who b { display: block; }
.table code { font-size: .82rem; word-break: break-all; }
.kv { display: grid; grid-template-columns: max-content 1fr; gap: .4rem 1.5rem; margin: 0 0 1.5rem; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; word-break: break-all; }

@media (max-width: 800px) {
    .admin-shell { grid-template-columns: minmax(0, 1fr); }
    .admin-side { min-width: 0; }
    .admin-side { padding: .75rem 0; }
    .admin-side nav { display: flex; overflow-x: auto; }
    .admin-side nav a { white-space: nowrap; border-inline-start: 0; border-bottom: 3px solid transparent; }
    .admin-side nav a.is-active { border-bottom-color: #8d9bff; }
    .admin-main { padding: 1.25rem 1rem; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; animation: none !important; } }

/* Tài khoản / ảnh đại diện */
.avatar-edit { display: flex; gap: 1.25rem; align-items: center; }
.avatar-preview { margin-bottom: .75rem; }
fieldset.plain { border: 0; padding: 0; margin: 0; }
.label { font-weight: 600; margin-bottom: .4rem; padding: 0; }
fieldset.plain .check { margin-bottom: .4rem; }
.text-bad { color: var(--madder); }
.nav .me { display: inline-flex; align-items: center; gap: .5rem; color: var(--muted); font-size: .9rem; text-decoration: none; }
.nav .me:hover { color: var(--ultra); }

/* Cửa sổ cắt ảnh đại diện */
.crop-dialog { border: 0; border-radius: 10px; padding: 0; width: min(380px, 94vw); color: var(--ink); }
.crop-dialog::backdrop { background: rgba(20, 24, 31, .65); }
.crop-box { padding: 1.25rem; }
.crop-box h2 { margin-bottom: .4rem; }
.crop-canvas { display: block; margin: 1rem auto; border-radius: 8px; background: #e9ebf2; touch-action: none; cursor: grab; max-width: 100%; }
.crop-canvas:active { cursor: grabbing; }
.crop-zoom { display: flex; gap: .6rem; align-items: center; font-size: .8rem; color: var(--muted); margin-bottom: .5rem; }
.crop-zoom input { flex: 1; accent-color: var(--ultra); }
.crop-actions { display: flex; gap: .5rem; justify-content: flex-end; flex-wrap: wrap; margin-top: .5rem; }
.crop-actions .btn { margin: 0; }

/* Nút quả cầu đổi ngôn ngữ */
.lang-menu { position: relative; }
.lang-menu > summary { list-style: none; display: inline-flex; align-items: center; gap: .3rem; cursor: pointer; padding: .3rem .5rem; border-radius: var(--radius); color: var(--ink); font-weight: 500; font-size: .85rem; }
.lang-menu > summary::-webkit-details-marker { display: none; }
.lang-menu > summary:hover, .lang-menu[open] > summary { background: var(--paper); color: var(--ultra); }
.lang-list { max-width: calc(100vw - 1.5rem); position: absolute; inset-inline-end: 0; top: calc(100% + 4px); z-index: 20; min-width: 160px; max-height: 70vh; overflow-y: auto; margin: 0; padding: .3rem; list-style: none; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: 0 8px 24px rgba(20, 24, 31, .12); }
.lang-list form { margin: 0; }
.lang-item { display: block; width: 100%; text-align: start; padding: .45rem .7rem; border: 0; border-radius: 4px; background: none; font: 500 .92rem var(--font-body); color: var(--ink); cursor: pointer; }
.lang-item:hover { background: var(--ultra-tint); color: var(--ultra-dark); }
.lang-item.is-current { background: var(--ultra-tint); color: var(--ultra-dark); font-weight: 600; }
.lang-menu--side > summary { color: #dfe2ea; padding: 0; }
.lang-menu--side > summary:hover, .lang-menu--side[open] > summary { background: none; color: #fff; }
.lang-menu--side .lang-list { position: static; margin-top: .4rem; box-shadow: none; background: #1d222c; border-color: #2c323d; }
.lang-menu--side .lang-item { color: #dfe2ea; }
.lang-menu--side .lang-item:hover, .lang-menu--side .lang-item.is-current { background: #2a3040; color: #fff; }
.pill-list { display: flex; flex-wrap: wrap; gap: .3rem; }
.meter { display: inline-block; width: 90px; height: 8px; border-radius: 4px; background: var(--line); vertical-align: middle; overflow: hidden; }
.meter > i { display: block; height: 100%; background: var(--green); }
.meter.is-low > i { background: var(--ochre); }

/* Ô bí mật có nút hiện/ẩn */
.secret-row { display: flex; gap: .5rem; align-items: center; }
.secret-row input { flex: 1; min-width: 0; }

/* Thao tác hàng loạt (Admin → Người dùng) */
.bulk-bar { display: flex; flex-wrap: wrap; gap: .5rem .75rem; align-items: center; padding: .6rem .8rem; margin-bottom: 1rem; background: var(--ultra-tint); border: 1px solid #c3caf3; border-radius: var(--radius); position: sticky; top: 0; z-index: 5; }
.bulk-bar .bulk-count { font-weight: 600; color: var(--ultra-dark); }
.bulk-bar .bulk-actions { margin-inline-start: auto; display: flex; gap: .4rem; flex-wrap: wrap; }
.bulk-bar [hidden] { display: none !important; }
.table .check-col { width: 2.25rem; padding-inline-end: 0; }
.table tr.is-selected td { background: var(--ultra-tint); }
.steps-list { margin: 0 0 1rem 1.2rem; padding: 0; color: var(--muted); }
.steps-list li { margin-bottom: .2rem; }

.url-prefix { display: flex; flex-direction: column; gap: .25rem; }
.url-prefix .small { overflow-wrap: anywhere; }
.slug-status { min-height: 1.4em; margin-top: .35rem; }
.slug-status.is-ok { color: #1c6b3a; }
.slug-status.is-bad { color: #a12626; }
.slug-suggest { display: flex; flex-wrap: wrap; gap: .4rem; margin-top: .4rem; }
.slug-suggest:empty { display: none; }
.subnav { display: flex; gap: 1rem; flex-wrap: wrap; margin: 0 0 1rem; }
.subnav a { padding: .25rem 0; text-decoration: none; border-bottom: 2px solid transparent; }
.subnav a.is-active { border-bottom-color: currentColor; font-weight: 600; }

/* Trình đăng bài, thẻ bài, trang bài */
.sr-only { position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden; clip: rect(0 0 0 0); border: 0; }
.is-ok { color: #1c6b3a; }
.is-bad { color: #a12626; }
.post-card .post-link { display: block; color: inherit; text-decoration: none; }
.post-card .excerpt { margin: .3rem 0; color: var(--muted, #555); overflow-wrap: anywhere; }
.post-card .meta { display: flex; gap: .6rem; flex-wrap: wrap; align-items: center; }
.post-page { max-width: 760px; margin-inline: auto; }
.post-head { display: flex; gap: .7rem; align-items: center; flex-wrap: wrap; }
.post-head .who { display: inline-flex; gap: .5rem; align-items: center; text-decoration: none; color: inherit; }
.post-body { overflow-wrap: anywhere; }
[hidden] { display: none !important; }
.brand-logo { display: block; height: 36px; width: auto; max-width: 180px; object-fit: contain; }
.counter { font-variant-numeric: tabular-nums; color: var(--muted, #666); margin-inline-start: .35rem; }
.counter.is-ok { color: #1c6b3a; }
.counter.is-warn { color: #a65b00; }
.img-current { display: flex; align-items: center; gap: .6rem; padding: .5rem; border: 1px dashed var(--line); border-radius: 8px; margin-bottom: .4rem; background: #fff; }
.img-current img { border-radius: 6px; max-width: 100%; height: auto; max-height: 56px; width: auto; }
.img-current img.is-og { max-height: none; }
.serp { border: 1px solid var(--line); border-radius: 8px; background: #fff; padding: .8rem 1rem; max-width: 600px; }
.serp-title { color: #1a0dab; font-size: 1.15rem; line-height: 1.3; overflow-wrap: anywhere; }
.serp-url { color: #1e6a2f; font-size: .85rem; margin: .1rem 0; }
.serp-desc { color: #4d5156; font-size: .9rem; line-height: 1.45; overflow-wrap: anywhere; }
.field .label { display: block; font-weight: 600; margin-bottom: .3rem; }

/* ===== Thanh đầu trang: logo, ô tìm kiếm co giãn, menu tài khoản ===== */
.avatar-md { width: 44px; height: 44px; font-size: 1rem; }
.site-header .bar { flex-wrap: nowrap; gap: 1rem; }
.site-header .brand { flex: none; display: flex; align-items: center; }
.site-search { flex: 1 1 auto; min-width: 0; position: relative; display: flex; align-items: center; margin: 0; }
.site-search svg { position: absolute; inset-inline-start: .8rem; color: var(--muted); pointer-events: none; }
.site-search input[type=search] { width: 100%; height: 40px; padding-block: 0; padding-inline: 2.5rem 1rem; border-radius: 99px; border: 1px solid var(--line); background: var(--paper); color: var(--ink); font: 400 .95rem var(--font-body); min-height: 0; }
.site-search input[type=search]:focus { background: var(--surface); border-color: var(--ultra); outline: 0; box-shadow: 0 0 0 3px var(--ultra-tint); }
.bar-end { flex: none; display: flex; align-items: center; gap: .6rem; }
.bar-end form { margin: 0; }
.icon-btn { width: 36px; height: 36px; display: inline-grid; place-items: center; border: 0; border-radius: 50%; background: none; color: var(--ink); cursor: pointer; }
.icon-btn:hover { background: var(--paper); color: var(--ultra); }
.user-menu { position: relative; }
.user-menu > summary { list-style: none; display: flex; align-items: center; gap: .5rem; cursor: pointer; padding: .2rem .5rem .2rem .25rem; border-radius: 99px; font-weight: 500; color: var(--ink); }
.user-menu > summary::-webkit-details-marker { display: none; }
.user-menu > summary:hover, .user-menu[open] > summary { background: var(--paper); }
.um-name { max-width: 150px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.um-caret { color: var(--muted); transition: transform .15s; }
.user-menu[open] .um-caret { transform: rotate(180deg); }
.um-panel { position: absolute; inset-inline-end: 0; top: calc(100% + 8px); z-index: 30; width: 280px; padding: .5rem; background: var(--surface); border: 1px solid var(--line); border-radius: 12px; box-shadow: 0 14px 36px rgba(10, 14, 25, .2); }
.um-panel hr { border: 0; border-top: 1px solid var(--line); margin: .4rem .25rem; }
.um-head { display: flex; gap: .75rem; align-items: center; padding: .5rem .5rem .6rem; }
.um-head b { display: block; overflow-wrap: anywhere; line-height: 1.25; }
.um-head small { color: var(--muted); }
.um-link { display: block; width: 100%; text-align: start; padding: .55rem .6rem; border: 0; border-radius: 8px; background: none; color: var(--ink); text-decoration: none; font: 500 .95rem var(--font-body); cursor: pointer; }
.um-link:hover { background: var(--ultra-tint); color: var(--ultra-dark); }
.um-out { color: var(--madder); }
.um-group { padding: .25rem .5rem .5rem; }
.um-label { display: block; font-size: .78rem; color: var(--muted); font-weight: 600; margin-bottom: .3rem; text-transform: uppercase; letter-spacing: .05em; }
.um-segs { display: flex; gap: .35rem; }
.um-segs form { flex: 1; }
.um-seg { width: 100%; display: flex; align-items: center; justify-content: center; gap: .4rem; padding: .4rem .5rem; border: 1px solid var(--line); border-radius: 8px; background: var(--paper); color: var(--ink); font: 500 .88rem var(--font-body); cursor: pointer; }
.um-seg:hover { border-color: var(--ultra); }
.um-seg.is-on { background: var(--ultra); border-color: var(--ultra); color: #fff; }
@media (max-width: 720px) {
    .site-header .bar { gap: .5rem; min-height: 56px; }
    .site-header .brand { font-size: 1.15rem; max-width: 34vw; overflow: hidden; }
    .site-header .brand-logo { max-width: 34vw; }
    .um-name, .um-caret { display: none; }
    .bar-end .btn { padding: .3rem .6rem; }
    .um-panel { position: fixed; left: .5rem; right: .5rem; top: 60px; width: auto; }
    .lang-menu .lang-code { display: none; }
}

/* Trang tìm kiếm, ô đăng trạng thái */
.search-sec { margin-bottom: 2rem; }
.status-box { margin: 1.25rem 0 1.5rem; }
.status-box textarea { min-height: 84px; }
.status-box select { width: auto; }

/* ===== Giao diện tối ===== */
html[data-theme="dark"] {
    color-scheme: dark;
    --ink: #e8eaf1; --paper: #12141a; --surface: #1b1e27; --line: #333948; --muted: #a2a9ba;
    --ultra: #6c7bf7; --ultra-dark: #8e9aff; --ultra-tint: #252b52;
    --madder: #ee6f86; --madder-tint: #3b2028; --ochre: #e6b650; --ochre-tint: #3a2f16;
    --green: #52c98f; --green-tint: #17352a;
}
html[data-theme="dark"] .btn { background: #2a2f3d; border-color: #3a4152; color: #fff; }
html[data-theme="dark"] .btn:hover { background: #343a4b; color: #fff; }
html[data-theme="dark"] .btn-primary { background: #5565e8; border-color: #5565e8; }
html[data-theme="dark"] .btn-primary:hover { background: #6674f0; border-color: #6674f0; }
html[data-theme="dark"] .btn-danger { background: #c4455f; border-color: #c4455f; }
html[data-theme="dark"] .btn-ghost { background: transparent; color: var(--ink); border-color: var(--line); }
html[data-theme="dark"] .btn-ghost:hover { background: var(--surface); border-color: var(--ink); }
html[data-theme="dark"] .skip { background: var(--ultra); }
html[data-theme="dark"] .alert-success, html[data-theme="dark"] .badge-ok { border-color: #245a43; color: #7fe0b2; }
html[data-theme="dark"] .alert-error, html[data-theme="dark"] .badge-bad { border-color: #6a3340; color: #f5a3b3; }
html[data-theme="dark"] .alert-info, html[data-theme="dark"] .badge-info { border-color: #38418a; color: #b4bcff; }
html[data-theme="dark"] .badge-warn { border-color: #6b5420; }
html[data-theme="dark"] .hero { background: #1f2547; }
html[data-theme="dark"] .hero p { color: #c4cbf0; }
html[data-theme="dark"] .um-seg.is-on { background: #5565e8; border-color: #5565e8; }
html[data-theme="dark"] .um-panel { box-shadow: 0 14px 36px rgba(0, 0, 0, .55); }
html[data-theme="dark"] .crop-canvas { background: #2a2f3d; }
html[data-theme="dark"] .img-current { background: var(--surface); }
html[data-theme="dark"] .avatar-text { color: var(--ultra-dark); }
html[data-theme="dark"] img.brand-logo { filter: none; }
.um-acc.is-on { cursor: default; font-weight: 700; color: var(--ultra-dark); }
.um-acc.is-on:hover { background: none; }
.um-acc small { font-weight: 500; color: var(--muted); margin-inline-start: .35rem; }

/* Kho ứng dụng */
.app-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 1rem; margin: 1rem 0; }
.app-card { display: flex; flex-direction: column; gap: .5rem; }
.app-card h2 { margin: 0; font-size: 1.15rem; }
.plan-list { list-style: none; margin: 0; padding: 0; display: grid; gap: .5rem; }
.plan-list li { display: flex; justify-content: space-between; align-items: center; gap: .5rem; border-top: 1px solid var(--line); padding-top: .5rem; }
.plan-list form { margin: 0; }
.kv { display: grid; grid-template-columns: max-content 1fr; gap: .4rem 1rem; margin: 0 0 1rem; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; }
.bank { white-space: pre-wrap; background: var(--bg, #f6f7fb); border: 1px solid var(--line); border-radius: var(--radius); padding: .8rem 1rem; font: inherit; }

/* Token (T): chữ T vàng có bóng đổ */
.tok { white-space: nowrap; font-weight: 600; }
.tok-t { color: #f5b301; text-shadow: 0 1px 2px rgba(120, 70, 0, .55), 0 0 1px rgba(120, 70, 0, .6); font-weight: 800; }
.um-wallet { display: flex; align-items: center; gap: .4rem; flex-wrap: wrap; padding: .5rem .75rem; border-bottom: 1px solid var(--line); }
dialog.dlg { border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); color: inherit; padding: 1.25rem; width: min(480px, calc(100% - 2rem)); }
dialog.dlg::backdrop { background: rgba(10, 12, 20, .5); }
.dlg-actions { display: flex; gap: .5rem; flex-wrap: wrap; margin-top: 1rem; }

/* Cài ứng dụng dạng web */
.os-grid { display: grid; grid-template-columns: 1fr 1fr; gap: .5rem; margin: .75rem 0; }
.os-btn { justify-content: center; text-align: center; }
.pwa-card { margin-top: 1.5rem; max-width: 560px; }
.pwa-card ol { margin: .5rem 0 0; padding-inline-start: 1.25rem; display: grid; gap: .35rem; }
.pwa-card [hidden] { display: none; }
.soon { text-align: center; padding: 2.5rem 1rem 1rem; }
.soon-ico { display: inline-flex; width: 84px; height: 84px; align-items: center; justify-content: center; border-radius: 20px; color: #fff; background: linear-gradient(180deg, #7fd96a, #2f9e44); margin-bottom: .75rem; }
.soon h1 { margin-bottom: .25rem; }
.soon-badge { display: inline-block; padding: .2rem .8rem; border-radius: 999px; background: #fff3cd; color: #7a5600; font-weight: 600; margin: 0 0 .75rem; }

/* Icon ứng dụng */
.app-ico { display: inline-flex; align-items: center; justify-content: center; border-radius: 22%; object-fit: cover; flex: none; background: transparent; }
.app-ico-fallback { background: linear-gradient(180deg, #7fd96a, #2f9e44); color: #fff; width: 48px; height: 48px; }
.app-head { display: flex; align-items: center; gap: .75rem; }
.app-head h2 { margin: 0; }
img.soon-ico, .soon-ico.app-ico-fallback { width: 84px; height: 84px; border-radius: 20px; margin-bottom: .75rem; }
dialog.dlg { max-height: 90vh; overflow: auto; }

/* Chọn ngôn ngữ trong menu tài khoản: danh sách xổ, cuộn được, không tràn trang */
.um-lang { width: 100%; }
.um-lang > summary { list-style: none; cursor: pointer; }
.um-lang > summary::-webkit-details-marker { display: none; }
.um-lang > summary::after { content: ""; width: .45rem; height: .45rem; margin-inline-start: .5rem; border: solid currentColor; border-width: 0 2px 2px 0; transform: rotate(45deg) translateY(-2px); }
.um-lang[open] > summary::after { transform: rotate(-135deg); }
.um-lang-list { list-style: none; margin: .35rem 0 0; padding: .25rem; max-height: 14rem; overflow-y: auto; overscroll-behavior: contain; border: 1px solid var(--line); border-radius: 8px; background: var(--paper); }
.um-lang-list form { margin: 0; }
.um-lang-item { display: block; width: 100%; text-align: start; padding: .4rem .6rem; border: 0; border-radius: 6px; background: none; color: var(--ink); font: 500 .88rem var(--font-body); cursor: pointer; }
.um-lang-item:hover { background: var(--ultra-tint); color: var(--ultra-dark); }
.um-lang-item.is-on { background: var(--ultra); color: #fff; }

/* Block (khối chức năng của app) trên trang */
.blk-wrap, .blk-page { margin-block: 1.5rem; }
.blk-region { display: flex; flex-direction: column; gap: 1rem; margin-block: 1rem; }
.blk-cols { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 1.5rem; }
.blk-cols:has(.blk-side:empty) { grid-template-columns: minmax(0, 1fr); }
.blk-side:empty { display: none; }
@media (max-width: 760px) { .blk-cols { grid-template-columns: minmax(0, 1fr); } }
.blk-box-card { padding: 1rem 1.2rem; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); }
.blk-box-card.is-plain { padding: 0; background: none; border: 0; }
.blk-box-card h3 { margin: 0 0 .4rem; }
.blk-box-card p { margin: 0; color: var(--muted); }

/* Trình gắn block trong Studio (giao diện thành viên) */
.blk-studio .blk-regions, .blk-regions { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1rem; margin-top: 1rem; }
.blk-box { padding: .9rem; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); min-width: 0; }
.blk-box h3 { margin: 0 0 .6rem; font-size: 1rem; }
.blk-box h3 small { display: block; font-weight: 400; }
.blk-item { padding: .6rem; margin-bottom: .6rem; border: 1px solid var(--line); border-radius: 8px; background: var(--paper); }
.blk-item.is-off { opacity: .55; }
.blk-head { display: flex; flex-wrap: wrap; gap: .4rem; align-items: center; }
.blk-tools { display: flex; gap: .15rem; margin-inline-start: auto; flex-wrap: wrap; }
.blk-tools form { margin: 0; }
.blk-opts summary { cursor: pointer; color: var(--ultra); font-size: .85rem; margin-top: .4rem; }
.blk-set { display: flex; flex-direction: column; gap: .2rem; margin: .5rem 0; font-size: .85rem; }
.blk-row { display: flex; flex-wrap: wrap; gap: .5rem; align-items: center; margin-top: .5rem; }
.blk-add select { flex: 1 1 140px; min-width: 0; }

/* Sơ đồ gắn block (khung mô phỏng trang) */
.blk-mock { display: flex; flex-direction: column; gap: .75rem; margin-top: 1rem; padding: .75rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--paper); }
.blk-mock-bar { padding: .5rem .75rem; border-radius: 8px; background: var(--line); color: var(--muted); font-size: .8rem; text-align: center; }
.blk-mock-profile { padding-block: 1.1rem; }
.blk-mock-cols { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 36%); gap: .75rem; }
.blk-mock .blk-box { border-style: dashed; margin: 0; }
.blk-zone-side { background: var(--paper); }
.blk-plus { display: flex; align-items: center; justify-content: center; gap: .4rem; width: 100%; min-height: 44px; padding: .5rem; border: 2px dashed var(--line); border-radius: 8px; background: none; color: var(--ultra); font: inherit; cursor: pointer; }
.blk-plus:hover, .blk-plus:focus-visible { border-color: var(--ultra); background: var(--surface); }
.blk-plus span { font-size: 1.3rem; line-height: 1; font-weight: 700; }
@media (max-width: 640px) { .blk-mock-cols { grid-template-columns: minmax(0, 1fr); } }
.blk-picker { width: min(560px, calc(100vw - 2rem)); max-height: 80vh; padding: 1rem 1.1rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); color: inherit; }
.blk-picker::backdrop { background: rgba(0, 0, 0, .45); }
.blk-pk-head { display: flex; align-items: center; justify-content: space-between; gap: .5rem; }
.blk-pk-head h3 { margin: 0; font-size: 1.05rem; }
.blk-pk-app { margin: 1rem 0 .4rem; font-size: .85rem; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; }
.blk-pk-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: .5rem; }
.blk-pick { display: flex; flex-direction: column; align-items: flex-start; gap: .2rem; padding: .65rem .75rem; border: 1px solid var(--line); border-radius: 8px; background: var(--paper); color: inherit; font: inherit; text-align: start; cursor: pointer; }
.blk-pick:hover, .blk-pick:focus-visible { border-color: var(--ultra); }

/* Block hệ thống */
.blk-home .blk-region { gap: 0; margin: 0; }
.blk-home .blk-region .blk:not(.blk-full) { width: min(1120px, 100% - 2rem); margin-inline: auto; }
.blk-home .blk-region .blk-full .wrap { width: min(1120px, 100% - 2rem); }
.blk-menu { display: flex; flex-wrap: wrap; gap: .4rem; padding: .9rem 0 0; }
.blk-slider { position: relative; overflow: hidden; }
.blk-slide { display: none; padding: clamp(2.5rem, 7vw, 5rem) 0 clamp(3rem, 8vw, 5.5rem); color: #fff; }
.blk-slide.is-on { display: block; }
.blk-slide h2 { max-width: 20ch; font-size: clamp(1.9rem, 5vw, 3.2rem); margin-bottom: .6rem; }
.blk-slide p { max-width: 54ch; font-size: 1.1rem; margin-bottom: 1rem; color: rgba(255, 255, 255, .9); }
.blk-tone-0 { background: linear-gradient(120deg, #3d4bd8, #7a52d6); }
.blk-tone-1 { background: linear-gradient(120deg, #0f8b8d, #2f6fdd); }
.blk-tone-2 { background: linear-gradient(120deg, #d6537a, #e8873a); }
.blk-dots { position: absolute; inset-inline: 0; bottom: .9rem; display: flex; justify-content: center; gap: .5rem; }
.blk-dot { width: 11px; height: 11px; padding: 0; border: 0; border-radius: 50%; background: rgba(255, 255, 255, .45); cursor: pointer; }
.blk-dot.is-on { background: #fff; }
.blk-reset { margin-top: 1rem; }
.blk-reset summary { cursor: pointer; color: var(--muted); font-size: .9rem; }

/* Chế độ kéo thả block ngay trên trang */
:root { --blk-green: #2ee66b; }
.blk-fab { position: fixed; inset-inline-end: 1rem; inset-block-end: 1rem; z-index: 60; margin: 0; opacity: .5; transition: opacity .15s; max-width: calc(100vw - 2rem); }
.blk-fab:hover, .blk-fab:focus-within, .blk-fab.is-on { opacity: 1; }
.blk-fab-btn { display: inline-flex; align-items: center; gap: .4rem; max-width: 100%; padding: .55rem .95rem; border: 1px solid var(--line); border-radius: 999px; background: var(--surface); color: inherit; font: inherit; font-size: .85rem; box-shadow: 0 2px 12px rgba(0, 0, 0, .2); cursor: pointer; }
.blk-fab.is-on .blk-fab-btn { background: #17b653; border-color: #17b653; color: #fff; }
.blk-region.is-edit { position: relative; display: flex; flex-direction: column; gap: .8rem; min-height: 3.6rem; margin-block: .6rem; padding: 1rem .5rem .5rem; border: 1px dashed rgba(46, 230, 107, .7); border-radius: 10px; min-width: 0; }
.blk-region.is-edit::before { content: attr(data-label); position: absolute; top: -.7rem; inset-inline-start: .75rem; padding: 0 .5rem; background: var(--paper); color: #12a64a; font-size: .72rem; font-weight: 600; }
.blk-home .blk-region.is-edit { gap: .8rem; margin-block: .6rem; }
.blk-slot { position: relative; min-width: 0; overflow: hidden; padding-bottom: 2.6rem; border-radius: 8px; background: var(--paper); box-shadow: 0 0 0 2px var(--blk-green), 0 0 12px rgba(46, 230, 107, .5); }
.blk-slot.is-off { opacity: .55; }
.blk-slot.is-dragging { opacity: .35; }
.blk-bar { display: flex; flex-wrap: wrap; align-items: center; gap: .4rem; padding: .3rem .5rem; background: rgba(46, 230, 107, .18); }
.blk-grip { padding: .1rem .4rem; font-size: 1.25rem; line-height: 1; cursor: grab; touch-action: none; user-select: none; }
.blk-name { flex: 1 1 8rem; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: .8rem; }
.blk-acts { display: flex; gap: .2rem; margin-inline-start: auto; }
.blk-act { min-width: 34px; min-height: 34px; padding: 0 .4rem; border: 1px solid var(--line); border-radius: 6px; background: var(--surface); color: inherit; font: inherit; cursor: pointer; }
.blk-act:hover, .blk-act:focus-visible { border-color: var(--blk-green); }
.blk-ghost { padding: 1.2rem 1rem; text-align: center; color: var(--muted); font-size: .85rem; }
.blk-plus-corner { position: absolute; inset-inline-end: .55rem; inset-block-end: .45rem; z-index: 2; width: 36px; height: 36px; padding: 0; border: 2px solid var(--blk-green); border-radius: 50%; background: var(--surface); color: #12a64a; font-size: 1.4rem; line-height: 1; cursor: pointer; }
.blk-plus-corner:hover, .blk-plus-corner:focus-visible { background: var(--blk-green); color: #06361a; }
.blk-plus-empty { display: flex; align-items: center; justify-content: center; gap: .4rem; min-height: 56px; border: 2px dashed var(--blk-green); border-radius: 8px; background: none; color: #12a64a; font: inherit; cursor: pointer; }
.blk-region:has(.blk-slot) > .blk-plus-empty { display: none; }
.blk-dragging .blk-region.is-edit { background: rgba(46, 230, 107, .06); }
.blk-toast { position: fixed; inset-inline: 1rem; inset-block-end: 4.5rem; z-index: 80; width: fit-content; max-width: calc(100vw - 2rem); margin-inline: auto; padding: .6rem 1rem; border-radius: 8px; background: #1d2433; color: #fff; font-size: .9rem; }
@media (max-width: 520px) { .blk-fab-btn { padding: .5rem .75rem; font-size: .8rem; } .blk-slot { padding-bottom: 2.8rem; } }
body:has(.blk-fab.is-on) { padding-bottom: 4.5rem; }

/* Gói mở rộng trong Kho ứng dụng */
.addon-box { border-top: 1px dashed var(--line); padding-top: .5rem; display: grid; gap: .4rem; }
.addon-box p { margin: 0; }
.addon-pick { display: grid; gap: .25rem; margin: .5rem 0; }
.addon-pick select { width: 100%; }
.addon-box .plan-list li { flex-wrap: wrap; }
.addon-box .plan-list .btn { white-space: nowrap; }