/* ============================================================
   KidsTube — Admin web styles (commercial build)
   Sidebar shell · dashboard · searchable/paginated library ·
   review queue · categories. Component classes mirror the
   KidsTube Playful Calm components (Button / Card / Input / Badge).
   ============================================================ */

body { background: var(--surface-app); color: var(--text-primary); }
a { color: var(--accent); text-decoration: none; }

/* ---------------- primitives ---------------- */
.vk-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2);
  min-height: var(--tap-min);
  font-family: var(--font-body); font-weight: var(--fw-bold); letter-spacing: .01em;
  white-space: nowrap; user-select: none; cursor: pointer;
  transition: var(--t-control); border: 1px solid transparent;
}
.vk-btn:disabled { cursor: not-allowed; opacity: .5; }
.vk-btn:hover:not(:disabled) { filter: brightness(1.06); }
.vk-btn:active:not(:disabled) { transform: scale(.98); }
.vk-btn--sm { height: 36px; padding: 0 14px; font-size: var(--fs-label); border-radius: var(--radius-sm); }
.vk-btn--md { height: 44px; padding: 0 18px; font-size: var(--fs-ui); border-radius: var(--radius-sm); }
.vk-btn--lg { height: 52px; padding: 0 26px; font-size: var(--fs-title); border-radius: var(--radius-md); }
.vk-btn--primary { background: var(--accent); color: var(--text-on-accent); box-shadow: var(--shadow-sm); }
.vk-btn--ghost { background: transparent; color: var(--text-secondary); border-color: var(--border-default); }
.vk-btn--ghost:hover:not(:disabled) { background: var(--pill-bg); filter: none; }
.vk-btn--danger { background: var(--danger); color: #fff; }

.vk-card {
  background: var(--surface-card); border: 1px solid var(--border-default);
  border-radius: var(--radius-lg); box-shadow: var(--shadow-sm);
}

.vk-input-wrap {
  display: flex; align-items: center; gap: var(--space-2); height: 48px; padding: 0 14px;
  background: var(--surface-card); border: 1px solid var(--border-default);
  border-radius: var(--radius-sm); transition: var(--t-control);
}
.vk-input-wrap:focus-within { border-color: var(--border-focus); box-shadow: var(--ring-focus); }
.vk-input-wrap.is-error { border-color: var(--danger); box-shadow: none; }
.vk-input-icon { color: var(--text-muted); display: inline-flex; }
.vk-input { flex: 1; min-width: 0; height: 100%; background: transparent; border: none; outline: none; color: var(--text-primary); font-family: var(--font-body); font-size: var(--fs-body); }
.vk-input::placeholder { color: var(--text-muted); }
/* Bỏ vòng focus của riêng <input> — wrap (.vk-input-wrap:focus-within) đã vẽ vòng,
   tránh "viền đôi" do quy tắc toàn cục :focus-visible trong tokens.css. */
.vk-input:focus, .vk-input:focus-visible { outline: none; box-shadow: none; }
.vk-select {
  height: 48px; padding: 0 36px 0 14px; border-radius: var(--radius-sm);
  background: var(--surface-card) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%238C8CA8' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E") no-repeat right 12px center;
  border: 1px solid var(--border-default); color: var(--text-primary);
  font-family: var(--font-body); font-size: var(--fs-body); font-weight: 600;
  appearance: none; -webkit-appearance: none; cursor: pointer; transition: var(--t-control);
}
.vk-select:focus-visible { border-color: var(--border-focus); box-shadow: var(--ring-focus); }
.vk-input-note { display: block; margin-top: var(--space-2); font-size: var(--fs-caption); color: var(--text-muted); }
.vk-input-note.is-error { color: var(--danger); }
.vk-input-note.is-success { color: var(--success); }
.vk-input-note.is-warning { color: var(--warning); }

.vk-badge {
  display: inline-flex; align-items: center; gap: 5px; height: 22px; padding: 0 9px;
  border-radius: var(--radius-pill); font-family: var(--font-body); font-size: var(--fs-micro);
  font-weight: 800; letter-spacing: .04em; text-transform: uppercase; white-space: nowrap;
  border: 1px solid transparent;
}
.vk-badge .dot { width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.vk-badge--accent  { background: var(--accent-soft); color: var(--accent); border-color: var(--accent-soft-border); }
.vk-badge--success { background: var(--success-soft); color: var(--success); }
.vk-badge--danger  { background: var(--danger-soft);  color: var(--danger-strong); }
.vk-badge--warning { background: var(--warning-soft); color: var(--warning); }
.vk-badge--muted   { background: var(--pill-bg); color: var(--text-muted); }

/* ============================================================
   Shell — sidebar + main
   ============================================================ */
.kt-shell { min-height: 100vh; display: grid; grid-template-columns: 256px 1fr; }

.kt-sidebar {
  position: sticky; top: 0; align-self: start; height: 100vh;
  display: flex; flex-direction: column; gap: 4px;
  padding: 20px 16px; background: var(--surface-card);
  border-right: 1px solid var(--border-default);
}
.kt-brand { display: flex; align-items: center; gap: 11px; padding: 6px 8px 18px; }
.kt-brand-mark { width: 34px; height: 34px; border-radius: 11px; background: linear-gradient(135deg, #0891B2, #9333EA); display: grid; place-items: center; box-shadow: var(--glow-accent); }
.kt-brand-name { font-family: var(--font-display); font-weight: 900; font-size: 18px; color: var(--text-primary); }
.kt-brand-sub { font-size: 11px; color: var(--text-muted); font-weight: 700; letter-spacing: .06em; text-transform: uppercase; }

.kt-navlabel { font-size: 11px; letter-spacing: .1em; text-transform: uppercase; font-weight: 800; color: var(--text-muted); padding: 14px 10px 6px; }
.kt-navitem {
  display: flex; align-items: center; gap: 11px; width: 100%;
  padding: 10px 12px; border-radius: var(--radius-sm);
  font-family: var(--font-body); font-weight: 700; font-size: var(--fs-ui);
  color: var(--text-secondary); background: transparent; border: none;
  cursor: pointer; text-align: left; transition: var(--t-control);
}
.kt-navitem:hover { background: var(--pill-bg); color: var(--text-primary); }
.kt-navitem.is-active { background: var(--accent-soft); color: var(--accent); }
.kt-navitem .kt-navicon { display: inline-flex; flex-shrink: 0; }
.kt-navitem .kt-navcount {
  margin-left: auto; min-width: 22px; height: 20px; padding: 0 6px; border-radius: var(--radius-pill);
  display: inline-flex; align-items: center; justify-content: center;
  font-size: var(--fs-micro); font-weight: 800; background: var(--pill-bg); color: var(--text-secondary);
}
.kt-navitem.is-active .kt-navcount { background: var(--accent); color: var(--text-on-accent); }
.kt-navitem .kt-navcount--alert { background: var(--warning); color: #3a2a00; }

.kt-sidebar-foot { margin-top: auto; padding-top: 14px; border-top: 1px solid var(--border-subtle); }
.kt-user { display: flex; align-items: center; gap: 10px; padding: 8px; border-radius: var(--radius-sm); }
.kt-avatar { width: 36px; height: 36px; border-radius: 50%; background: linear-gradient(135deg,#0891B2,#9333EA); display: grid; place-items: center; font-family: var(--font-display); font-weight: 900; font-size: 15px; color: #fff; flex-shrink: 0; }
.kt-user-name { font-size: var(--fs-label); font-weight: 800; color: var(--text-primary); }
.kt-user-email { font-size: var(--fs-caption); color: var(--text-muted); }

/* main */
.kt-main { min-width: 0; display: flex; flex-direction: column; }
.kt-topbar {
  position: sticky; top: 0; z-index: var(--z-sticky);
  display: flex; align-items: center; gap: 16px; padding: 18px 32px;
  background: var(--surface-app); border-bottom: 1px solid var(--border-default);
}
.kt-topbar-titles { min-width: 0; }
.kt-page-title { font-family: var(--font-display); font-weight: 900; font-size: 24px; color: var(--text-primary); line-height: 1.15; }
.kt-page-sub { font-size: var(--fs-label); color: var(--text-secondary); margin-top: 2px; }
.kt-topbar-actions { margin-left: auto; display: flex; align-items: center; gap: 10px; }

.kt-page { padding: 28px 32px 48px; max-width: 1200px; width: 100%; }

/* ---------------- offline banner ---------------- */
.kt-banner {
  display: flex; align-items: center; gap: 10px; padding: 12px 16px; margin-bottom: 22px;
  border-radius: var(--radius-md); background: var(--warning-soft);
  border: 1px solid var(--warning); color: var(--text-primary); font-weight: 600; font-size: var(--fs-ui);
}
.kt-banner svg { color: var(--warning); flex-shrink: 0; }

/* ============================================================
   Dashboard
   ============================================================ */
.kt-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 28px; }
.kt-stat { padding: 18px 20px; display: flex; flex-direction: column; gap: 10px; }
.kt-stat-top { display: flex; align-items: center; justify-content: space-between; }
.kt-stat-icon { width: 38px; height: 38px; border-radius: 11px; display: grid; place-items: center; }
.kt-stat-icon--accent { background: var(--accent-soft); color: var(--accent); }
.kt-stat-icon--success { background: var(--success-soft); color: var(--success); }
.kt-stat-icon--warning { background: var(--warning-soft); color: var(--warning); }
.kt-stat-icon--premium { background: var(--premium-soft); color: var(--premium); }
.kt-stat-num { font-family: var(--font-display); font-weight: 900; font-size: 30px; color: var(--text-primary); line-height: 1; font-variant-numeric: tabular-nums; }
.kt-stat-label { font-size: var(--fs-label); color: var(--text-secondary); font-weight: 600; }

.kt-section { margin-bottom: 28px; }
.kt-section-head { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.kt-section-title { font-family: var(--font-display); font-weight: 800; font-size: 18px; color: var(--text-primary); }
.kt-section-link { margin-left: auto; font-size: var(--fs-label); font-weight: 700; color: var(--accent); background: none; border: none; cursor: pointer; padding: 6px 8px; border-radius: var(--radius-xs); }
.kt-section-link:hover { background: var(--accent-soft); }

/* review queue cards (dashboard + pending page) */
.kt-review-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 16px; }
.kt-review { overflow: hidden; display: flex; flex-direction: column; }
.kt-review-thumb { position: relative; aspect-ratio: 16/9; background-size: cover; background-position: center; }
.kt-review-dur { position: absolute; right: 8px; bottom: 8px; padding: 2px 7px; border-radius: 6px; background: rgba(0,0,0,.78); color: #fff; font-size: var(--fs-micro); font-weight: 700; font-variant-numeric: tabular-nums; }
.kt-review-cat { position: absolute; left: 8px; top: 8px; }
.kt-review-body { padding: 14px 16px; display: flex; flex-direction: column; gap: 4px; flex: 1; }
.kt-review-title { font-weight: 700; font-size: var(--fs-body); color: var(--text-primary); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.kt-review-channel { font-size: var(--fs-label); color: var(--text-secondary); display: flex; align-items: center; gap: 6px; }
.kt-review-foot { display: flex; gap: 8px; padding: 0 16px 16px; }
.kt-review-foot .vk-btn { flex: 1; }

/* ============================================================
   Library — toolbar + table + pagination
   ============================================================ */
.kt-toolbar { display: flex; align-items: center; gap: 12px; margin-bottom: 18px; flex-wrap: wrap; }
.kt-search { flex: 1; min-width: 240px; max-width: 420px; }
.kt-segmented { display: inline-flex; padding: 4px; gap: 2px; background: var(--pill-bg); border-radius: var(--radius-sm); }
.kt-seg { height: 36px; padding: 0 14px; border-radius: var(--radius-xs); border: none; background: transparent; cursor: pointer; font-family: var(--font-body); font-weight: 700; font-size: var(--fs-label); color: var(--text-secondary); display: inline-flex; align-items: center; gap: 7px; transition: var(--t-control); }
.kt-seg:hover { color: var(--text-primary); }
.kt-seg.is-active { background: var(--surface-card); color: var(--text-primary); box-shadow: var(--shadow-sm); }
.kt-seg-count { min-width: 20px; height: 18px; padding: 0 5px; border-radius: var(--radius-pill); display: inline-flex; align-items: center; justify-content: center; font-size: 10px; font-weight: 800; background: var(--pill-bg-hover); color: var(--text-muted); }
.kt-seg.is-active .kt-seg-count { background: var(--accent-soft); color: var(--accent); }

.kt-table { overflow: hidden; }
.kt-table-head { display: flex; align-items: center; gap: 12px; padding: 16px 20px; border-bottom: 1px solid var(--border-default); }
.kt-table-title { font-family: var(--font-display); font-weight: 800; font-size: 16px; color: var(--text-primary); }
.kt-table-note { margin-left: auto; font-size: var(--fs-label); color: var(--text-muted); font-weight: 600; }

.kt-cols, .kt-row { display: grid; grid-template-columns: 128px 1fr 150px 120px 230px; gap: 16px; }
.kt-cols { padding: 12px 20px; background: var(--surface-sunken); border-bottom: 1px solid var(--border-default); font-size: 11px; letter-spacing: .09em; text-transform: uppercase; font-weight: 800; color: var(--text-muted); }
.kt-row { align-items: center; padding: 12px 20px; border-bottom: 1px solid var(--border-subtle); transition: background var(--dur-fast); }
.kt-row:last-child { border-bottom: none; }
.kt-row:hover { background: var(--surface-sunken); }
.kt-thumb { width: 128px; aspect-ratio: 16/9; border-radius: 10px; background-size: cover; background-position: center; position: relative; overflow: hidden; flex-shrink: 0; }
.kt-thumb-dur { position: absolute; right: 5px; bottom: 5px; padding: 1px 5px; border-radius: 5px; background: rgba(0,0,0,.78); color: #fff; font-size: 10px; font-weight: 700; font-variant-numeric: tabular-nums; }
.kt-title-cell { min-width: 0; }
.kt-title { font-weight: 700; font-size: var(--fs-body); color: var(--text-primary); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.kt-title-meta { display: flex; align-items: center; gap: 8px; margin-top: 5px; }
.kt-cat-tag { display: inline-flex; align-items: center; gap: 5px; font-size: var(--fs-caption); color: var(--text-secondary); font-weight: 600; }
.kt-cat-swatch { width: 8px; height: 8px; border-radius: 3px; flex-shrink: 0; }
.kt-ytlink { font-size: var(--fs-caption); color: var(--text-muted); display: inline-flex; align-items: center; gap: 3px; }
.kt-ytlink:hover { color: var(--accent); }
.kt-channel-cell { font-size: var(--fs-ui); color: var(--text-secondary); font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.kt-status-cell { display: flex; }
.kt-actions { display: flex; gap: 6px; justify-content: flex-end; flex-wrap: wrap; }
.kt-act { width: 38px; height: 38px; border-radius: 11px; display: grid; place-items: center; cursor: pointer; transition: var(--t-control); border: 1px solid var(--border-default); background: var(--surface-card); }
.kt-act:disabled { opacity: .4; cursor: not-allowed; }
.kt-act--approve { border-color: var(--success); background: var(--success-soft); color: var(--success); }
.kt-act--approve:hover:not(:disabled) { background: var(--success); color: #fff; }
.kt-act--remove { color: var(--text-muted); }
.kt-act--remove:hover:not(:disabled) { color: var(--danger); border-color: var(--danger); background: var(--danger-soft); }
.kt-act--pin.is-active { color: var(--warning); border-color: var(--warning); background: var(--warning-soft); }
.kt-act--order { color: var(--text-muted); }
.kt-pin-mark { color: var(--warning); }
.kt-video-labels { display: flex; flex-wrap: wrap; gap: 5px; margin-top: 7px; }
.kt-meta-chip { display: inline-flex; align-items: center; min-height: 20px; padding: 2px 7px; border-radius: 999px; background: var(--pill-bg); color: var(--text-muted); font-size: 10px; font-weight: 750; }

.kt-empty { padding: 56px 22px; text-align: center; }
.kt-empty-icon { width: 56px; height: 56px; border-radius: 16px; margin: 0 auto 14px; display: grid; place-items: center; background: var(--pill-bg); color: var(--text-muted); }
.kt-empty-title { font-family: var(--font-display); font-weight: 800; font-size: 17px; color: var(--text-primary); margin-bottom: 4px; }
.kt-empty-sub { font-size: var(--fs-ui); color: var(--text-muted); }

/* pagination */
.kt-pagination { display: flex; align-items: center; gap: 8px; padding: 16px 20px; border-top: 1px solid var(--border-default); }
.kt-page-info { font-size: var(--fs-label); color: var(--text-muted); font-weight: 600; }
.kt-page-ctrls { margin-left: auto; display: flex; align-items: center; gap: 6px; }
.kt-page-btn { min-width: 36px; height: 36px; padding: 0 10px; border-radius: var(--radius-sm); border: 1px solid var(--border-default); background: var(--surface-card); color: var(--text-secondary); font-weight: 700; font-size: var(--fs-label); cursor: pointer; display: inline-flex; align-items: center; justify-content: center; gap: 4px; transition: var(--t-control); }
.kt-page-btn:hover:not(:disabled) { border-color: var(--border-focus); color: var(--text-primary); }
.kt-page-btn:disabled { opacity: .4; cursor: not-allowed; }
.kt-page-btn.is-active { background: var(--accent); border-color: var(--accent); color: var(--text-on-accent); }
.kt-page-gap { color: var(--text-muted); padding: 0 2px; }

/* ============================================================
   Categories grid
   ============================================================ */
.kt-cat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 16px; }
.kt-cat-card { padding: 18px; display: flex; flex-direction: column; gap: 14px; cursor: pointer; transition: var(--t-surface); text-align: left; border: 1px solid var(--border-default); background: var(--surface-card); border-radius: var(--radius-lg); }
.kt-cat-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); border-color: var(--border-strong); }
.kt-cat-bar { height: 8px; border-radius: var(--radius-pill); }
.kt-cat-name { font-family: var(--font-display); font-weight: 800; font-size: 17px; color: var(--text-primary); }
.kt-cat-stats { display: flex; align-items: baseline; gap: 6px; }
.kt-cat-count { font-family: var(--font-display); font-weight: 900; font-size: 26px; color: var(--text-primary); font-variant-numeric: tabular-nums; }
.kt-cat-count-label { font-size: var(--fs-label); color: var(--text-muted); font-weight: 600; }
.kt-cat-pending { font-size: var(--fs-caption); color: var(--warning); font-weight: 700; }

/* ============================================================
   Modal
   ============================================================ */
.kt-backdrop { position: fixed; inset: 0; z-index: var(--z-modal); background: var(--backdrop); display: grid; place-items: center; padding: 20px; animation: kt-fade var(--dur-fast) ease both; }
.kt-modal { width: 100%; max-width: 520px; background: var(--surface-card); border: 1px solid var(--border-default); border-radius: var(--radius-xl); box-shadow: var(--shadow-xl); overflow: hidden; animation: kt-pop var(--dur-base) var(--ease-out) both; }
.kt-modal--sm { max-width: 420px; }
.kt-modal--search { max-width: 940px; max-height: min(880px, 92vh); display: flex; flex-direction: column; }
.kt-modal--search .kt-modal-head, .kt-modal--search .kt-modal-foot { flex-shrink: 0; }
.kt-yt-modal-body { min-height: 360px; overflow-y: auto; }
.kt-yt-searchbar { display: flex; gap: 10px; align-items: center; }
.kt-yt-query { flex: 1; }
.kt-yt-filters { display: grid; grid-template-columns: minmax(220px, 1.4fr) minmax(180px, 1fr) minmax(160px, .8fr); gap: 12px; }
.kt-yt-filters .vk-select { width: 100%; }
.kt-yt-note { display: flex; align-items: flex-start; gap: 8px; padding: 10px 12px; border: 1px solid color-mix(in srgb, var(--warning) 35%, var(--border-default)); border-radius: var(--radius-md); background: color-mix(in srgb, var(--warning) 8%, var(--surface-card)); color: var(--text-secondary); font-size: var(--fs-caption); line-height: 1.45; }
.kt-yt-note svg { flex-shrink: 0; color: var(--warning); }
.kt-yt-note strong { color: var(--text-primary); }
.kt-yt-result-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; color: var(--text-secondary); font-size: var(--fs-label); font-weight: 700; }
.kt-yt-result-head button { padding: 0; border: 0; background: none; color: var(--accent); font: inherit; cursor: pointer; }
.kt-yt-results { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.kt-yt-result { position: relative; display: grid; grid-template-columns: 126px minmax(0, 1fr); gap: 11px; padding: 10px; border: 1px solid var(--border-default); border-radius: var(--radius-md); background: var(--surface-card); cursor: pointer; transition: var(--t-control); }
.kt-yt-result:hover { border-color: color-mix(in srgb, var(--accent) 45%, var(--border-default)); transform: translateY(-1px); }
.kt-yt-result.is-selected { border-color: var(--accent); background: color-mix(in srgb, var(--accent) 7%, var(--surface-card)); box-shadow: 0 0 0 1px var(--accent); }
.kt-yt-result.is-duplicate { opacity: .62; cursor: not-allowed; }
.kt-yt-result.is-duplicate:hover { transform: none; border-color: var(--border-default); }
.kt-yt-checkbox { position: absolute; top: 15px; left: 15px; z-index: 2; width: 18px; height: 18px; accent-color: var(--accent); }
.kt-yt-thumb { position: relative; display: block; width: 126px; aspect-ratio: 16/9; border-radius: 8px; background-size: cover; background-position: center; background-color: #222; }
.kt-yt-copy { min-width: 0; display: flex; flex-direction: column; align-items: flex-start; }
.kt-yt-copy strong { width: 100%; color: var(--text-primary); font-size: var(--fs-label); line-height: 1.35; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.kt-yt-copy small { width: 100%; margin-top: 5px; color: var(--text-secondary); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.kt-yt-copy em { margin-top: auto; padding-top: 5px; color: var(--accent); font-size: var(--fs-caption); font-style: normal; font-weight: 700; }
.kt-yt-result.is-duplicate .kt-yt-copy em { color: var(--warning); }
.kt-yt-empty { min-height: 230px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 8px; color: var(--text-muted); text-align: center; }
.kt-yt-empty svg { width: 34px; height: 34px; }
.kt-yt-empty strong { color: var(--text-primary); font-size: var(--fs-ui); }
.kt-yt-empty small { max-width: 420px; color: var(--text-secondary); }
.kt-yt-more { align-self: center; }
.kt-yt-selected-count { margin-right: auto; align-self: center; color: var(--text-secondary); font-size: var(--fs-label); font-weight: 700; }
.kt-modal-head { display: flex; align-items: flex-start; gap: 12px; padding: 22px 22px 0; }
.kt-modal-title { font-family: var(--font-display); font-weight: 900; font-size: 20px; color: var(--text-primary); }
.kt-modal-sub { font-size: var(--fs-label); color: var(--text-secondary); margin-top: 3px; }
.kt-modal-x { margin-left: auto; width: 34px; height: 34px; border-radius: 10px; border: none; background: var(--pill-bg); color: var(--text-secondary); cursor: pointer; display: grid; place-items: center; flex-shrink: 0; transition: var(--t-control); }
.kt-modal-x:hover { background: var(--pill-bg-hover); color: var(--text-primary); }
.kt-modal-body { padding: 20px 22px; display: flex; flex-direction: column; gap: 16px; }
.kt-field-label { display: block; font-size: var(--fs-label); font-weight: 800; color: var(--text-primary); margin-bottom: 7px; }
.kt-modal-foot { display: flex; gap: 10px; justify-content: flex-end; padding: 16px 22px; border-top: 1px solid var(--border-default); background: var(--surface-sunken); }
.kt-field-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.kt-check-grid { display: flex; flex-wrap: wrap; gap: 8px; }
.kt-check-chip { cursor: pointer; }
.kt-check-chip input { position: absolute; opacity: 0; pointer-events: none; }
.kt-check-chip span { display: inline-flex; min-height: 34px; align-items: center; padding: 0 12px; border-radius: 999px; border: 1px solid var(--border-default); color: var(--text-secondary); font-size: var(--fs-label); font-weight: 700; }
.kt-check-chip.is-active span { color: var(--accent); border-color: var(--accent); background: var(--accent-soft); }

/* health + reports */
.kt-health-card { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin: -8px 0 24px; padding: 16px 18px; border: 1px solid var(--success); background: var(--success-soft); border-radius: var(--radius-lg); }
.kt-health-card.has-alert { border-color: var(--danger); background: var(--danger-soft); }
.kt-health-title { display: flex; align-items: center; gap: 8px; font-weight: 850; color: var(--text-primary); }
.kt-health-sub { margin-top: 4px; color: var(--text-secondary); font-size: var(--fs-label); }
.kt-stat-num--compact { font-size: 23px; line-height: 1.2; }
.kt-report-toolbar { display: flex; justify-content: flex-end; margin-bottom: 16px; }
.kt-report-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 16px; }
.kt-report-card { padding: 20px; }
.kt-report-card:first-child { grid-column: 1 / -1; }
.kt-report-card h3 { margin: 0 0 18px; font-family: var(--font-display); font-size: 17px; }
.kt-report-row { display: grid; grid-template-columns: 96px 1fr 90px; align-items: center; gap: 12px; margin: 11px 0; font-size: var(--fs-label); }
.kt-report-track { height: 10px; overflow: hidden; border-radius: 999px; background: var(--pill-bg); }
.kt-report-track span { display: block; height: 100%; border-radius: inherit; background: linear-gradient(90deg, var(--accent), var(--premium)); }
.kt-report-row strong { text-align: right; font-size: var(--fs-caption); }
.kt-report-item { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 12px; padding: 11px 0; border-bottom: 1px solid var(--border-subtle); }
.kt-report-item:last-child { border-bottom: none; }
.kt-report-item strong, .kt-report-item small { display: block; }
.kt-report-item strong { font-size: var(--fs-ui); }
.kt-report-item small { margin-top: 3px; color: var(--text-muted); font-size: var(--fs-caption); }
.kt-report-item > span:last-child { font-size: var(--fs-caption); font-weight: 750; color: var(--text-secondary); }
.kt-report-rank { width: 26px; height: 26px; display: grid; place-items: center; border-radius: 8px; background: var(--pill-bg); color: var(--accent); font-size: var(--fs-caption); font-weight: 850; }

/* add-video live preview inside modal */
.kt-preview { display: flex; gap: 12px; padding: 12px; border-radius: var(--radius-md); background: var(--surface-sunken); border: 1px solid var(--border-subtle); align-items: center; }
.kt-preview-thumb { position: relative; width: 96px; aspect-ratio: 16/9; border-radius: 8px; background-size: cover; background-position: center; background-color: var(--pill-bg); flex-shrink: 0; }
.kt-preview-meta { min-width: 0; flex: 1; }
.kt-preview-id { font-size: var(--fs-caption); color: var(--text-muted); font-weight: 700; }
.kt-preview-hint { font-size: var(--fs-label); color: var(--text-secondary); }
.kt-preview-title { color: var(--text-primary); font-size: var(--fs-ui); font-weight: 800; line-height: 1.3; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.kt-preview-details { display: flex; align-items: center; flex-wrap: wrap; gap: 6px; margin: 4px 0 2px; color: var(--text-secondary); font-size: var(--fs-label); }
.kt-preview-duration { position: absolute; right: 5px; bottom: 5px; padding: 2px 5px; border-radius: 5px; color: #fff; background: rgba(0,0,0,.82); font-size: 10px; font-weight: 800; }
.kt-preview--error { border-color: color-mix(in srgb, var(--danger) 35%, var(--border-subtle)); }
.kt-preview--warning { border-color: color-mix(in srgb, var(--warning) 45%, var(--border-subtle)); }
.kt-preview-error { margin-top: 4px; color: var(--danger); font-size: var(--fs-caption); font-weight: 700; }
.kt-preview-warning { margin-top: 5px; color: var(--warning); font-size: var(--fs-caption); font-weight: 700; }
.kt-preview-loading { display: flex; align-items: center; gap: 7px; color: var(--text-secondary); font-size: var(--fs-label); font-weight: 700; }
.kt-preview-spinner { width: 14px; height: 14px; border: 2px solid var(--border-default); border-top-color: var(--accent); border-radius: 50%; animation: kt-spin .7s linear infinite; }
.kt-preview-skeleton { height: 8px; width: 88%; margin-top: 8px; border-radius: 999px; background: var(--skeleton-base); animation: kt-pulse 1.1s ease-in-out infinite alternate; }
.kt-preview-skeleton--short { width: 55%; margin-top: 6px; }
@keyframes kt-spin { to { transform: rotate(360deg) } }
@keyframes kt-pulse { to { opacity: .45 } }

@keyframes kt-fade { from { opacity: 0 } to { opacity: 1 } }
@keyframes kt-pop { from { transform: translateY(10px) scale(.98); opacity: 0 } to { transform: translateY(0) scale(1); opacity: 1 } }

/* ---------------- skeleton ---------------- */
.kt-skel { background: linear-gradient(90deg, var(--skeleton-base) 25%, var(--skeleton-shine) 37%, var(--skeleton-base) 63%); background-size: 400% 100%; animation: kt-shimmer 1.4s ease infinite; border-radius: 8px; }
@keyframes kt-shimmer { 0% { background-position: 100% 0 } 100% { background-position: -100% 0 } }

/* ---------------- toast ---------------- */
.kt-toasts { position: fixed; bottom: 24px; right: 24px; display: flex; flex-direction: column; gap: 10px; z-index: var(--z-toast); }
.kt-toast { display: flex; align-items: center; gap: 10px; padding: 13px 16px; border-radius: var(--radius-md); background: var(--surface-card); border: 1px solid var(--border-default); box-shadow: var(--shadow-lg); font-size: var(--fs-ui); font-weight: 600; color: var(--text-primary); animation: kt-slide 240ms var(--ease-out) both; }
.kt-toast-ic { width: 22px; height: 22px; border-radius: 50%; display: grid; place-items: center; flex-shrink: 0; }
.kt-toast-ic--success { background: var(--success); color: #fff; }
.kt-toast-ic--info { background: var(--accent); color: var(--text-on-accent); }
.kt-toast-ic--danger { background: var(--danger); color: #fff; }
@keyframes kt-slide { from { transform: translateX(16px); opacity: 0 } to { transform: translateX(0); opacity: 1 } }

/* ============================================================
   Responsive
   ============================================================ */
.kt-menu-btn { display: none; width: 40px; height: 40px; border-radius: 11px; border: 1px solid var(--border-default); background: var(--surface-card); color: var(--text-primary); cursor: pointer; place-items: center; }
@media (max-width: 1000px) {
  .kt-stats { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 860px) {
  .kt-shell { grid-template-columns: 1fr; }
  .kt-sidebar {
    position: fixed; left: 0; top: 0; bottom: 0; z-index: var(--z-sheet); width: 256px;
    transform: translateX(-100%); transition: transform var(--dur-base) var(--ease-out);
    box-shadow: var(--shadow-xl);
  }
  .kt-shell.nav-open .kt-sidebar { transform: translateX(0); }
  .kt-scrim { position: fixed; inset: 0; z-index: var(--z-overlay); background: var(--backdrop); }
  .kt-menu-btn { display: grid; }
  .kt-topbar, .kt-page { padding-left: 18px; padding-right: 18px; }
  .kt-cols { display: none; }
  .kt-row { grid-template-columns: 92px 1fr auto; grid-template-areas: "thumb title actions" "thumb meta actions"; row-gap: 6px; }
  .kt-row > .kt-thumb { grid-area: thumb; width: 92px; }
  .kt-row > .kt-title-cell { grid-area: title; }
  .kt-row > .kt-channel-cell { grid-area: meta; white-space: normal; }
  .kt-row > .kt-status-cell { display: none; }
  .kt-row > .kt-actions { grid-area: actions; }
}

@media (max-width: 720px) {
  .kt-modal--search { max-height: 96vh; }
  .kt-yt-results { grid-template-columns: 1fr; }
  .kt-yt-filters { grid-template-columns: 1fr 1fr; }
  .kt-yt-filters > :first-child { grid-column: 1 / -1; }
  .kt-report-grid { grid-template-columns: 1fr; }
  .kt-report-card:first-child { grid-column: auto; }
  .kt-report-row { grid-template-columns: 76px 1fr; }
  .kt-report-row strong { grid-column: 2; text-align: left; }
  .kt-health-card { align-items: flex-start; flex-direction: column; }
}

/* ============================================================
   P2 — edit / categories management / auth
   ============================================================ */
.kt-act--edit { color: var(--text-muted); }
.kt-act--edit:hover:not(:disabled) { color: var(--accent); border-color: var(--accent); background: var(--pill-bg); }

/* icon buttons in sidebar footer (đổi mật khẩu + đăng xuất) */
.kt-iconbtn { width: 32px; height: 32px; border-radius: 9px; border: 1px solid var(--border-default); background: var(--surface-card); color: var(--text-muted); cursor: pointer; display: grid; place-items: center; flex-shrink: 0; transition: var(--t-control); }
.kt-iconbtn:hover { color: var(--text-primary); border-color: var(--border-strong); background: var(--pill-bg); }
.kt-iconbtn + .kt-iconbtn { margin-left: 2px; }
.kt-user > div:nth-child(2) { flex: 1; min-width: 0; }
.kt-user > .kt-iconbtn:first-of-type { margin-left: auto; }

/* toolbar aligned to the right (categories header) */
.kt-toolbar--end { justify-content: flex-end; }
.kt-toolbar--categories { justify-content: space-between; align-items: center; gap: 16px; }
.kt-order-hint { display: flex; align-items: center; gap: 8px; color: var(--text-muted); font-size: var(--fs-label); font-weight: 650; }

/* category management card */
.kt-cat-card--manage { cursor: grab; user-select: none; position: relative; }
.kt-cat-card--manage:active { cursor: grabbing; }
.kt-cat-card--manage:hover { transform: none; box-shadow: none; border-color: var(--border-default); }
.kt-cat-card--manage.is-dragging { opacity: .45; transform: scale(.98); }
.kt-cat-card--manage.is-drag-over { border-color: var(--accent); box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 18%, transparent); }
.kt-cat-order-head { display: flex; align-items: center; justify-content: space-between; min-height: 30px; }
.kt-drag-handle { display: inline-flex; align-items: center; gap: 7px; color: var(--text-muted); font-size: var(--fs-caption); font-weight: 750; }
.kt-order-actions { display: inline-flex; gap: 6px; }
.kt-order-btn { width: 30px; height: 30px; display: grid; place-items: center; border: 1px solid var(--border-default); border-radius: 9px; color: var(--text-secondary); background: var(--surface-card); cursor: pointer; transition: var(--t-control); }
.kt-order-btn:hover:not(:disabled) { color: var(--accent); border-color: var(--accent); background: var(--pill-bg); }
.kt-order-btn:disabled { opacity: .35; cursor: not-allowed; }
.kt-cat-manage-foot { display: flex; gap: 8px; margin-top: 2px; padding-top: 12px; border-top: 1px solid var(--border-subtle); }
.kt-cat-manage-foot .vk-btn { flex: 1; }

@media (max-width: 640px) {
  .kt-topbar { align-items: flex-start; flex-wrap: wrap; gap: 12px 16px; }
  .kt-topbar-titles { flex: 1; min-width: 0; }
  .kt-topbar-actions { width: calc(100% - 56px); margin-left: 56px; }
  .kt-topbar-actions .vk-btn { flex: 1; padding-left: 12px; padding-right: 12px; }
  .kt-topbar-actions { flex-wrap: wrap; }
  .kt-topbar-actions .vk-btn { min-width: calc(50% - 5px); }
  .kt-topbar-actions .vk-btn:last-child { flex-basis: 100%; }
  .kt-yt-searchbar { align-items: stretch; flex-direction: column; }
  .kt-yt-filters { grid-template-columns: 1fr; }
  .kt-yt-filters > :first-child { grid-column: auto; }
  .kt-yt-result { grid-template-columns: 108px minmax(0, 1fr); }
  .kt-yt-thumb { width: 108px; }
  .kt-modal--search .kt-modal-foot { flex-wrap: wrap; }
  .kt-yt-selected-count { width: 100%; }
  .kt-toolbar--categories { align-items: stretch; flex-direction: column; }
  .kt-toolbar--categories .vk-btn { width: 100%; }
  .kt-order-hint { line-height: 1.45; }
  .kt-row {
    grid-template-columns: 92px minmax(0, 1fr);
    grid-template-areas: "thumb title" "thumb meta" "actions actions";
    align-items: start;
  }
  .kt-row > .kt-actions {
    grid-area: actions;
    justify-content: flex-start;
    padding-top: 8px;
  }
  .kt-actions .kt-act { flex: 1; min-width: 42px; }
  .kt-title { -webkit-line-clamp: 3; }
  .kt-field-grid { grid-template-columns: 1fr; }
}

/* color swatches (category modal) */
.kt-swatches { display: flex; flex-wrap: wrap; gap: 10px; }
.kt-swatch-btn { width: 34px; height: 34px; border-radius: 10px; border: 2px solid transparent; cursor: pointer; transition: var(--t-control); box-shadow: inset 0 0 0 1px rgba(0,0,0,.08); }
.kt-swatch-btn:hover { transform: scale(1.08); }
.kt-swatch-btn.is-active { border-color: var(--text-primary); box-shadow: 0 0 0 2px var(--surface-card), 0 0 0 4px var(--text-primary); }

/* auth (setup / login) */
.kt-auth { min-height: 100vh; display: grid; place-items: center; padding: 24px; background:
  radial-gradient(1200px 600px at 50% -10%, color-mix(in srgb, var(--accent) 14%, transparent), transparent 70%); }
.kt-auth-card { width: 100%; max-width: 400px; padding: 34px 30px; text-align: center; animation: kt-pop var(--dur-base) var(--ease-out) both; }
.kt-auth-brand { display: flex; flex-direction: column; align-items: center; gap: 2px; margin-bottom: 18px; }
.kt-brand-mark--lg { width: 54px; height: 54px; border-radius: 16px; margin-bottom: 8px; }
.kt-auth-brandname { font-family: var(--font-display); font-weight: 900; font-size: 22px; color: var(--text-primary); }
.kt-auth-brandsub { font-size: var(--fs-label); color: var(--text-muted); font-weight: 700; letter-spacing: .02em; }
.kt-auth-lock { width: 58px; height: 58px; border-radius: 18px; margin: 6px auto 14px; display: grid; place-items: center; background: var(--pill-bg); color: var(--accent); }
.kt-auth-title { font-family: var(--font-display); font-weight: 900; font-size: 20px; color: var(--text-primary); margin-bottom: 6px; }
.kt-auth-sub { font-size: var(--fs-ui); color: var(--text-secondary); line-height: 1.5; margin-bottom: 20px; }
.kt-auth-field { text-align: left; margin-bottom: 14px; }
.kt-auth-error { display: flex; align-items: center; gap: 8px; text-align: left; padding: 10px 12px; border-radius: var(--radius-sm); background: var(--danger-soft); color: var(--danger); font-size: var(--fs-label); font-weight: 700; margin-bottom: 16px; }
.kt-auth-error svg { flex-shrink: 0; }
.kt-auth-btn { width: 100%; justify-content: center; margin-top: 6px; }