/* ==========================================================================
   Course Builder Admin — Brand Design System
   Primary: #244092  |  Secondary/Accent: #EF3E26
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:ital,wght@0,400;0,500;0,600;0,700;0,800;1,400&family=JetBrains+Mono:wght@400;500&display=swap');

/* ── Design Tokens ──────────────────────────────────────────────────────── */
:root {
    /* Brand */
    --cb-primary:         #244092;
    --cb-primary-dark:    #1a2f6e;
    --cb-primary-deeper:  #162860;
    --cb-primary-mid:     #2e50b0;
    --cb-primary-light:   #eef1fb;
    --cb-primary-faint:   #f4f6fd;
    --cb-primary-glow:    rgba(36, 64, 146, 0.14);
    --cb-primary-glow-lg: rgba(36, 64, 146, 0.22);

    --cb-accent:          #EF3E26;
    --cb-accent-dark:     #d43318;
    --cb-accent-deeper:   #b82b12;
    --cb-accent-light:    #fff0ee;
    --cb-accent-faint:    #fff7f6;
    --cb-accent-glow:     rgba(239, 62, 38, 0.14);

    /* Supporting palette (derived from brand) */
    --cb-teal:            #0E7C72;
    --cb-teal-light:      #E6F5F4;
    --cb-amber:           #B45309;
    --cb-amber-light:     #FEF3C7;
    --cb-emerald:         #047857;
    --cb-emerald-light:   #D1FAE5;
    --cb-violet:          #5B21B6;
    --cb-violet-light:    #EDE9FE;
    --cb-indigo:          #3730A3;
    --cb-indigo-light:    #E0E7FF;

    /* Danger (keep red but distinct from accent) */
    --cb-danger:          #DC2626;
    --cb-danger-dark:     #B91C1C;
    --cb-danger-light:    #FEF2F2;

    /* Neutrals */
    --cb-gray-50:         #F8FAFC;
    --cb-gray-100:        #F1F5F9;
    --cb-gray-200:        #E2E8F0;
    --cb-gray-300:        #CBD5E1;
    --cb-gray-400:        #94A3B8;
    --cb-gray-500:        #64748B;
    --cb-gray-600:        #475569;
    --cb-gray-700:        #334155;
    --cb-gray-800:        #1E293B;
    --cb-gray-900:        #0F172A;

    /* Surfaces */
    --cb-bg:              #F0F4FB;
    --cb-bg-card:         #FFFFFF;
    --cb-bg-hover:        #F8FAFF;

    /* Borders */
    --cb-border:          #DDE3F0;
    --cb-border-focus:    var(--cb-primary);

    /* Text */
    --cb-text:            #0F172A;
    --cb-text-2:          #1E293B;
    --cb-text-muted:      #64748B;
    --cb-text-faint:      #94A3B8;

    /* Radii */
    --cb-r-xs:   4px;
    --cb-r-sm:   8px;
    --cb-r:      12px;
    --cb-r-lg:   16px;
    --cb-r-xl:   20px;
    --cb-r-full: 9999px;

    /* Shadows */
    --cb-shadow-xs: 0 1px 3px rgba(36,64,146,.05);
    --cb-shadow-sm: 0 2px 8px rgba(36,64,146,.07), 0 1px 2px rgba(0,0,0,.04);
    --cb-shadow:    0 4px 16px rgba(36,64,146,.08), 0 1px 4px rgba(0,0,0,.04);
    --cb-shadow-md: 0 8px 28px rgba(36,64,146,.10), 0 2px 8px rgba(0,0,0,.05);
    --cb-shadow-lg: 0 20px 48px rgba(36,64,146,.14), 0 4px 12px rgba(0,0,0,.06);
    --cb-shadow-xl: 0 32px 64px rgba(36,64,146,.18);

    /* Transitions */
    --cb-ease:   cubic-bezier(.4, 0, .2, 1);
    --cb-spring: cubic-bezier(.34, 1.56, .64, 1);
    --cb-t:      .16s;
    --cb-t-lg:   .26s;

    /* Font */
    --cb-font: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    --cb-mono: 'JetBrains Mono', 'Cascadia Code', monospace;
}

/* ── Base ───────────────────────────────────────────────────────────────── */
.cb-wrap,
.cb-wrap * { box-sizing: border-box; font-family: var(--cb-font); }

#wpbody-content { background: var(--cb-bg); }

.cb-wrap { padding: 28px 24px 80px; max-width: 1440px; }

/* ── Page Header ────────────────────────────────────────────────────────── */
.cb-page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 28px;
    flex-wrap: wrap;
}

/* Gradient Header — brand primary */
.cb-page-header--gradient {
    background: linear-gradient(135deg, var(--cb-primary-deeper) 0%, var(--cb-primary) 55%, var(--cb-primary-mid) 100%);
    border-radius: var(--cb-r-lg);
    padding: 28px 32px;
    margin-bottom: 24px;
    position: relative;
    overflow: hidden;
}

/* Decorative circles */
.cb-page-header--gradient::before {
    content: '';
    position: absolute;
    top: -50%;  right: -4%;
    width: 320px; height: 320px;
    background: rgba(255,255,255,.06);
    border-radius: 50%;
    pointer-events: none;
}
.cb-page-header--gradient::after {
    content: '';
    position: absolute;
    bottom: -55%; right: 18%;
    width: 200px; height: 200px;
    background: rgba(239,62,38,.12);
    border-radius: 50%;
    pointer-events: none;
}

/* Violet variant — for Teachers page */
.cb-page-header--violet {
    background: linear-gradient(135deg, #1a1060 0%, #3b1fa8 55%, #5B21B6 100%);
}
/* Teal variant — for Categories page */
.cb-page-header--teal {
    background: linear-gradient(135deg, #064e46 0%, var(--cb-teal) 55%, #14b8a6 100%);
}

.cb-page-header--gradient h1,
.cb-page-header--gradient p,
.cb-page-header--gradient .cb-page-header__left * { color: #fff !important; }
.cb-page-header--gradient h1 {
    font-size: 22px;
    font-weight: 800;
    text-shadow: 0 1px 3px rgba(0,0,0,.2);
    letter-spacing: -.3px;
}
.cb-page-header--gradient p {
    opacity: .88;
    font-size: 13.5px;
    text-shadow: 0 1px 2px rgba(0,0,0,.15);
}

.cb-page-header--gradient .cb-page-header__icon {
    background: rgba(255,255,255,.15);
    backdrop-filter: blur(6px);
    border: 1px solid rgba(255,255,255,.22);
}
.cb-page-header--gradient .cb-page-header__icon svg { stroke: #fff; }

.cb-page-header--gradient .cb-btn--ghost {
    background: rgba(255,255,255,.18);
    color: #fff !important;
    border-color: rgba(255,255,255,.45);
    backdrop-filter: blur(4px);
    font-weight: 800;
    text-shadow: 0 1px 2px rgba(0,0,0,.15);
}
.cb-page-header--gradient .cb-btn--ghost:hover {
    background: rgba(255,255,255,.28);
    color: #fff !important;
    border-color: rgba(255,255,255,.6);
}

.cb-page-header__left {
    display: flex;
    align-items: center;
    gap: 18px;
    position: relative;
    z-index: 1;
}

.cb-page-header__right { position: relative; z-index: 1; }

.cb-page-header__icon {
    width: 54px; height: 54px;
    border-radius: var(--cb-r);
    background: var(--cb-primary-light);
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
    box-shadow: var(--cb-shadow-sm);
}
.cb-page-header__icon svg { width: 24px; height: 24px; stroke: var(--cb-primary); }

.cb-page-header h1 {
    font-size: 22px; font-weight: 800;
    color: var(--cb-text);
    margin: 0 0 3px;
    letter-spacing: -.3px;
}
.cb-page-header p {
    font-size: 13.5px;
    color: var(--cb-text-muted);
    margin: 0;
}

/* ── Stat Cards ─────────────────────────────────────────────────────────── */
.cb-stat-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
    margin-bottom: 20px;
}

.cb-stat-card {
    background: var(--cb-bg-card);
    border: 1px solid var(--cb-border);
    border-radius: var(--cb-r-lg);
    padding: 20px 22px;
    display: flex;
    align-items: center;
    gap: 16px;
    box-shadow: var(--cb-shadow-sm);
    transition: transform var(--cb-t) var(--cb-ease), box-shadow var(--cb-t) var(--cb-ease);
    position: relative;
    overflow: hidden;
}

.cb-stat-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; height: 3px;
}

.cb-stat-card:nth-child(1)::before { background: linear-gradient(90deg, var(--cb-primary), var(--cb-primary-mid)); }
.cb-stat-card:nth-child(2)::before { background: linear-gradient(90deg, var(--cb-accent), #ff6b52); }
.cb-stat-card:nth-child(3)::before { background: linear-gradient(90deg, var(--cb-teal), #14b8a6); }

.cb-stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--cb-shadow-md);
}

.cb-stat-card__icon {
    width: 48px; height: 48px;
    border-radius: var(--cb-r-sm);
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
}
.cb-stat-card__icon svg { width: 22px; height: 22px; }

.cb-stat-card__icon--blue   { background: var(--cb-primary-light); }
.cb-stat-card__icon--blue svg { stroke: var(--cb-primary); }
.cb-stat-card__icon--red    { background: var(--cb-accent-light); }
.cb-stat-card__icon--red svg { stroke: var(--cb-accent); }
.cb-stat-card__icon--green  { background: var(--cb-teal-light); }
.cb-stat-card__icon--green svg { stroke: var(--cb-teal); }
.cb-stat-card__icon--orange { background: var(--cb-amber-light); }
.cb-stat-card__icon--orange svg { stroke: var(--cb-amber); }

.cb-stat-card__num {
    font-size: 28px; font-weight: 800;
    color: var(--cb-text);
    line-height: 1;
    letter-spacing: -.6px;
}
.cb-stat-card__label {
    font-size: 12.5px;
    color: var(--cb-text-muted);
    font-weight: 500;
    margin-top: 3px;
}

/* ── Cards ──────────────────────────────────────────────────────────────── */
.cb-card {
    background: var(--cb-bg-card);
    border: 1px solid var(--cb-border);
    border-radius: var(--cb-r-lg);
    box-shadow: var(--cb-shadow-sm);
    overflow: hidden;
    margin-bottom: 18px;
    transition: box-shadow var(--cb-t) var(--cb-ease);
    position: relative;
}

.cb-card:hover { box-shadow: var(--cb-shadow); }

/* Accent top-border strips */
.cb-card--accent-blue::before,
.cb-card--accent-green::before,
.cb-card--accent-violet::before,
.cb-card--accent-orange::before,
.cb-card--accent-teal::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; height: 3px;
    border-radius: var(--cb-r-lg) var(--cb-r-lg) 0 0;
}
.cb-card--accent-blue::before   { background: linear-gradient(90deg, var(--cb-primary), var(--cb-primary-mid)); }
.cb-card--accent-green::before  { background: linear-gradient(90deg, var(--cb-teal), #14b8a6); }
.cb-card--accent-violet::before { background: linear-gradient(90deg, var(--cb-violet), #7c3aed); }
.cb-card--accent-orange::before { background: linear-gradient(90deg, var(--cb-accent), #ff6b52); }
.cb-card--accent-teal::before   { background: linear-gradient(90deg, var(--cb-teal), var(--cb-emerald)); }

/* Publish card */
.cb-card--publish {
    background: linear-gradient(135deg, var(--cb-primary-deeper) 0%, var(--cb-primary) 60%, var(--cb-primary-mid) 100%);
    border: none;
    box-shadow: 0 4px 20px var(--cb-primary-glow-lg);
}
.cb-card--publish .cb-card__body { padding: 22px; }

.cb-card__header {
    padding: 18px 22px 16px;
    border-bottom: 1px solid var(--cb-border);
    display: flex;
    align-items: center;
    gap: 12px;
}
.cb-card__header h2 {
    font-size: 14.5px; font-weight: 700;
    color: var(--cb-text);
    margin: 0; letter-spacing: -.1px;
}
.cb-card__header p {
    font-size: 12.5px;
    color: var(--cb-text-muted);
    margin: 3px 0 0;
    width: 100%;
}

.cb-card__header-icon {
    width: 34px; height: 34px;
    border-radius: var(--cb-r-sm);
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
}
.cb-card__header-icon svg { width: 16px; height: 16px; }

/* Icon bg helpers */
.cb-icon-bg--blue    { background: var(--cb-primary-light); }
.cb-icon-bg--blue svg { stroke: var(--cb-primary); }
.cb-icon-bg--green   { background: var(--cb-teal-light); }
.cb-icon-bg--green svg { stroke: var(--cb-teal); }
.cb-icon-bg--violet  { background: var(--cb-violet-light); }
.cb-icon-bg--violet svg { stroke: var(--cb-violet); }
.cb-icon-bg--orange  { background: var(--cb-accent-light); }
.cb-icon-bg--orange svg { stroke: var(--cb-accent); }
.cb-icon-bg--teal    { background: var(--cb-teal-light); }
.cb-icon-bg--teal svg { stroke: var(--cb-teal); }
.cb-icon-bg--indigo  { background: var(--cb-indigo-light); }
.cb-icon-bg--indigo svg { stroke: var(--cb-indigo); }

.cb-card__body { padding: 22px; }

/* ── Filters Bar ────────────────────────────────────────────────────────── */
.cb-filters {
    display: flex;
    gap: 10px;
    margin-bottom: 16px;
    flex-wrap: wrap;
    background: var(--cb-bg-card);
    border: 1px solid var(--cb-border);
    border-radius: var(--cb-r-lg);
    padding: 14px 18px;
    box-shadow: var(--cb-shadow-xs);
    align-items: center;
}
.cb-filters__search { flex: 1; min-width: 220px; position: relative; }
.cb-filters__search svg {
    position: absolute; left: 12px; top: 50%; transform: translateY(-50%);
    width: 15px; height: 15px; stroke: var(--cb-text-faint); pointer-events: none;
}
.cb-filters__search .cb-input { padding-left: 38px; }
.cb-filters__label {
    font-size: 12.5px; font-weight: 700;
    color: var(--cb-text-muted);
    white-space: nowrap;
}

/* ── Stats ──────────────────────────────────────────────────────────────── */
.cb-stats {
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 8px;
}
.cb-stats__text { font-size: 13px; color: var(--cb-text-muted); font-weight: 500; }

/* ── Inputs ─────────────────────────────────────────────────────────────── */
.cb-input,
.cb-select,
.cb-textarea {
    width: 100%;
    padding: 9px 14px;
    border: 1.5px solid var(--cb-border);
    border-radius: var(--cb-r-sm);
    font-size: 14px;
    font-family: var(--cb-font);
    color: var(--cb-text);
    background: var(--cb-bg-card);
    transition: border-color var(--cb-t) var(--cb-ease), box-shadow var(--cb-t) var(--cb-ease);
    outline: none;
    -webkit-appearance: none;
}

.cb-input--lg { padding: 11px 16px; font-size: 15px; font-weight: 600; }
.cb-input--center { text-align: center; font-weight: 700; font-size: 15px; }
.cb-input--sm { padding: 7px 10px; font-size: 13px; }

.cb-input:focus,
.cb-select:focus,
.cb-textarea:focus {
    border-color: var(--cb-primary);
    box-shadow: 0 0 0 3.5px var(--cb-primary-glow);
}

.cb-input::placeholder,
.cb-textarea::placeholder { color: var(--cb-text-faint); }

.cb-select {
    cursor: pointer;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath fill='%2394A3B8' d='M8 10.414L2.293 4.707l1.414-1.414L8 7.586l4.293-4.293 1.414 1.414z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 14px;
    padding-right: 36px;
}
.cb-select--narrow { max-width: 130px; }
.cb-select--full   { width: 100%; }

.cb-textarea { resize: vertical; min-height: 90px; line-height: 1.6; }

/* Input with unit suffix */
.cb-input-with-unit { position: relative; display: flex; align-items: stretch; }
.cb-input-with-unit .cb-input {
    border-radius: var(--cb-r-sm) 0 0 var(--cb-r-sm);
    border-right: none; flex: 1;
}
.cb-input-with-unit .cb-input:focus { z-index: 1; }
.cb-input-unit {
    display: flex; align-items: center;
    padding: 0 14px;
    background: var(--cb-gray-100);
    border: 1.5px solid var(--cb-border);
    border-left: none;
    border-radius: 0 var(--cb-r-sm) var(--cb-r-sm) 0;
    font-size: 12.5px; font-weight: 700;
    color: var(--cb-text-muted);
    white-space: nowrap;
}

/* ── Fields ─────────────────────────────────────────────────────────────── */
.cb-field { margin-bottom: 18px; }
.cb-field:last-child { margin-bottom: 0; }

.cb-label {
    display: flex; align-items: center; gap: 5px;
    font-size: 13px; font-weight: 700;
    color: var(--cb-text-2);
    margin-bottom: 7px;
    letter-spacing: -.1px;
}
.cb-label-icon { width: 14px; height: 14px; stroke: var(--cb-text-muted); flex-shrink: 0; }
.cb-required { color: var(--cb-accent); margin-left: 1px; }
.cb-hint { font-size: 12px; color: var(--cb-text-faint); margin: 6px 0 0; line-height: 1.5; }
.cb-field-actions { display: flex; gap: 10px; padding-top: 4px; }

/* ── Buttons ────────────────────────────────────────────────────────────── */
.cb-btn {
    display: inline-flex; align-items: center; justify-content: center;
    gap: 7px; padding: 9px 18px;
    border-radius: var(--cb-r-sm);
    font-size: 14px; font-weight: 700;
    font-family: var(--cb-font);
    cursor: pointer; border: 1.5px solid transparent;
    transition: all var(--cb-t) var(--cb-ease);
    text-decoration: none; white-space: nowrap;
    line-height: 1; letter-spacing: -.1px;
}
.cb-btn svg { width: 15px; height: 15px; flex-shrink: 0; }

/* Primary — brand blue */
.cb-btn--primary {
    background: linear-gradient(135deg, var(--cb-primary) 0%, var(--cb-primary-dark) 100%);
    color: #fff;
    border-color: var(--cb-primary-dark);
    box-shadow: 0 1px 4px var(--cb-primary-glow), 0 4px 14px var(--cb-primary-glow);
}
.cb-btn--primary:hover {
    background: linear-gradient(135deg, var(--cb-primary-dark) 0%, var(--cb-primary-deeper) 100%);
    color: #fff;
    transform: translateY(-1.5px);
    box-shadow: 0 4px 14px var(--cb-primary-glow-lg), 0 8px 28px var(--cb-primary-glow);
}
.cb-btn--primary:active { transform: translateY(0); }

/* Accent — brand red */
.cb-btn--accent {
    background: linear-gradient(135deg, var(--cb-accent) 0%, var(--cb-accent-dark) 100%);
    color: #fff;
    border-color: var(--cb-accent-dark);
    box-shadow: 0 1px 4px var(--cb-accent-glow), 0 4px 14px var(--cb-accent-glow);
}
.cb-btn--accent:hover {
    background: linear-gradient(135deg, var(--cb-accent-dark) 0%, var(--cb-accent-deeper) 100%);
    color: #fff;
    transform: translateY(-1.5px);
    box-shadow: 0 4px 14px rgba(239,62,38,.3);
}

/* Ghost */
.cb-btn--ghost {
    background: var(--cb-bg-card); color: var(--cb-text-2);
    border-color: var(--cb-border);
    box-shadow: var(--cb-shadow-xs);
}
.cb-btn--ghost:hover {
    background: var(--cb-gray-100); color: var(--cb-text);
    border-color: var(--cb-gray-300);
}

/* Outline variants */
.cb-btn--outline {
    background: var(--cb-primary-light); color: var(--cb-primary);
    border-color: #b8c8f0;
}
.cb-btn--outline:hover { background: #dce5f8; border-color: var(--cb-primary); }

.cb-btn--outline-violet {
    background: var(--cb-violet-light); color: var(--cb-violet);
    border-color: #ddd6fe;
}
.cb-btn--outline-violet:hover { background: #ede9fe; border-color: var(--cb-violet); }

.cb-btn--outline-orange {
    background: var(--cb-accent-light); color: var(--cb-accent-dark);
    border-color: #fcc8c2;
}
.cb-btn--outline-orange:hover { background: #ffe0dc; border-color: var(--cb-accent); }

/* Danger */
.cb-btn--danger {
    background: linear-gradient(135deg, #EF4444 0%, #DC2626 100%);
    color: #fff; border-color: #DC2626;
    box-shadow: 0 1px 3px rgba(220,38,38,.2);
}
.cb-btn--danger:hover {
    background: linear-gradient(135deg, #DC2626 0%, #B91C1C 100%);
    color: #fff; transform: translateY(-1px);
    box-shadow: 0 4px 14px rgba(220,38,38,.3);
}
.cb-btn--danger-ghost {
    background: transparent; color: var(--cb-danger);
    border-color: #fecaca;
}
.cb-btn--danger-ghost:hover { background: var(--cb-danger-light); border-color: var(--cb-danger); }

.cb-btn--sm  { padding: 7px 13px; font-size: 12.5px; }
.cb-btn--lg  { padding: 12px 22px; font-size: 15px; }
.cb-btn--full { width: 100%; }

/* ── Tables ─────────────────────────────────────────────────────────────── */
.cb-table-wrapper { overflow-x: auto; }
.cb-table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.cb-table thead { background: var(--cb-primary-faint); position: sticky; top: 0; z-index: 1; }
.cb-table th {
    padding: 11px 16px;
    text-align: left;
    font-size: 11px; font-weight: 800;
    text-transform: uppercase; letter-spacing: .65px;
    color: var(--cb-primary);
    border-bottom: 2px solid var(--cb-border);
    white-space: nowrap;
}
.cb-table td {
    padding: 14px 16px;
    color: var(--cb-text-2);
    border-bottom: 1px solid var(--cb-border);
    vertical-align: middle;
}
.cb-table tbody tr { transition: background var(--cb-t) var(--cb-ease); }
.cb-table tbody tr:hover { background: var(--cb-primary-faint); }
.cb-table tbody tr:last-child td { border-bottom: none; }

.cb-th--check   { width: 40px; }
.cb-th--actions { width: 90px; text-align: right; }
.cb-th--img     { width: 52px; }
.cb-th--avatar  { width: 52px; }

/* ── Pills ──────────────────────────────────────────────────────────────── */
.cb-pill {
    display: inline-flex; align-items: center; gap: 3px;
    padding: 3px 9px; border-radius: var(--cb-r-full);
    font-size: 11.5px; font-weight: 700;
    white-space: nowrap; letter-spacing: .1px;
}
.cb-pill--blue   { background: var(--cb-primary-light); color: var(--cb-primary); }
.cb-pill--red    { background: var(--cb-accent-light);  color: var(--cb-accent-dark); }
.cb-pill--green  { background: var(--cb-emerald-light); color: var(--cb-emerald); }
.cb-pill--violet { background: var(--cb-violet-light);  color: var(--cb-violet); }
.cb-pill--teal   { background: var(--cb-teal-light);    color: var(--cb-teal); }
.cb-pill--orange { background: var(--cb-accent-light);  color: var(--cb-accent-dark); }

/* ── Tags & Badges ──────────────────────────────────────────────────────── */
.cb-tag {
    display: inline-block;
    padding: 2px 9px; border-radius: var(--cb-r-full);
    font-size: 12px; font-weight: 600;
    background: var(--cb-gray-100);
    color: var(--cb-gray-600);
    border: 1px solid var(--cb-border);
    white-space: nowrap;
}
.cb-tag--more {
    background: var(--cb-primary-light); color: var(--cb-primary);
    border-color: #b8c8f0;
}

.cb-badge {
    display: inline-flex; align-items: center; justify-content: center;
    min-width: 24px; height: 22px; padding: 0 8px;
    border-radius: var(--cb-r-full);
    font-size: 11.5px; font-weight: 800;
    background: linear-gradient(135deg, var(--cb-primary), var(--cb-primary-mid));
    color: #fff;
    box-shadow: 0 2px 8px var(--cb-primary-glow-lg);
}

.cb-subcats-preview { display: flex; gap: 4px; flex-wrap: wrap; margin-top: 5px; }

/* ── Avatars & Thumbnails ───────────────────────────────────────────────── */
.cb-table-thumb {
    width: 38px; height: 38px;
    border-radius: var(--cb-r-sm);
    object-fit: cover;
    border: 1.5px solid var(--cb-border);
}
.cb-table-thumb--placeholder {
    background: var(--cb-gray-100);
    display: flex; align-items: center; justify-content: center;
}
.cb-table-thumb--placeholder svg { width: 16px; height: 16px; stroke: var(--cb-text-faint); }

.cb-avatar {
    width: 38px; height: 38px;
    border-radius: 50%; object-fit: cover;
    border: 2px solid var(--cb-border);
}
.cb-avatar--initials {
    background: linear-gradient(135deg, var(--cb-primary) 0%, var(--cb-primary-mid) 100%);
    display: flex; align-items: center; justify-content: center;
    font-size: 12px; font-weight: 800;
    color: #fff; letter-spacing: .5px; border: none;
    box-shadow: 0 2px 8px var(--cb-primary-glow-lg);
}

/* ── Action Buttons ─────────────────────────────────────────────────────── */
.cb-action-btns { display: flex; gap: 6px; justify-content: flex-end; }
.cb-action-btn {
    width: 30px; height: 30px;
    border-radius: var(--cb-r-sm);
    border: 1.5px solid var(--cb-border);
    background: var(--cb-bg-card);
    display: flex; align-items: center; justify-content: center;
    cursor: pointer;
    transition: all var(--cb-t) var(--cb-ease);
    color: var(--cb-text-muted);
    box-shadow: var(--cb-shadow-xs);
}
.cb-action-btn svg { width: 13px; height: 13px; }
.cb-action-btn--edit:hover {
    background: var(--cb-primary-light); border-color: var(--cb-primary);
    color: var(--cb-primary); transform: translateY(-1px);
    box-shadow: 0 3px 8px var(--cb-primary-glow);
}
.cb-action-btn--delete:hover {
    background: var(--cb-danger-light); border-color: var(--cb-danger);
    color: var(--cb-danger); transform: translateY(-1px);
    box-shadow: 0 3px 8px rgba(220,38,38,.15);
}

/* ── Checkbox ───────────────────────────────────────────────────────────── */
.cb-checkbox { width: 15px; height: 15px; accent-color: var(--cb-primary); cursor: pointer; }

/* ── Pagination ─────────────────────────────────────────────────────────── */
.cb-pagination {
    padding: 14px 20px;
    display: flex; align-items: center; justify-content: space-between;
    gap: 12px; border-top: 1px solid var(--cb-border);
    flex-wrap: wrap; background: var(--cb-primary-faint);
}
.cb-pagination__info { font-size: 12.5px; color: var(--cb-text-muted); font-weight: 500; }
.cb-pagination__controls { display: flex; gap: 4px; }
.cb-page-btn {
    min-width: 32px; height: 32px;
    border-radius: var(--cb-r-sm);
    border: 1.5px solid var(--cb-border);
    background: var(--cb-bg-card);
    font-size: 12.5px; font-weight: 700;
    color: var(--cb-text-2);
    cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    padding: 0 9px;
    transition: all var(--cb-t) var(--cb-ease);
    font-family: var(--cb-font);
}
.cb-page-btn:hover:not(:disabled) { background: var(--cb-gray-100); border-color: var(--cb-gray-300); }
.cb-page-btn.active {
    background: linear-gradient(135deg, var(--cb-primary), var(--cb-primary-dark));
    border-color: var(--cb-primary-dark); color: #fff;
    box-shadow: 0 2px 8px var(--cb-primary-glow-lg);
}
.cb-page-btn:disabled { opacity: .35; cursor: not-allowed; }

/* ── Spinners ───────────────────────────────────────────────────────────── */
.cb-spinner {
    width: 22px; height: 22px;
    border: 2.5px solid var(--cb-border);
    border-top-color: var(--cb-primary);
    border-radius: 50%;
    animation: cb-spin .6s linear infinite;
}
.cb-spinner--sm   { width: 15px; height: 15px; border-width: 2px; }
.cb-spinner--white { border-color: rgba(255,255,255,.3); border-top-color: #fff; }
@keyframes cb-spin { to { transform: rotate(360deg); } }

.cb-loading-row td,
.cb-empty {
    text-align: center;
    padding: 52px 20px !important;
    color: var(--cb-text-muted);
    font-size: 14px;
}
.cb-spinner-wrap {
    display: flex; flex-direction: column;
    align-items: center; gap: 12px;
    color: var(--cb-text-muted); font-size: 13px;
}

/* ── Form Status ────────────────────────────────────────────────────────── */
.cb-form-status {
    padding: 11px 15px;
    border-radius: var(--cb-r-sm);
    font-size: 13.5px; font-weight: 600;
    margin-bottom: 14px;
    display: flex; align-items: center; gap: 8px;
    animation: cb-fadein .2s var(--cb-ease);
}
.cb-form-status--success { background: var(--cb-emerald-light); color: var(--cb-emerald); border: 1px solid #a7f3d0; }
.cb-form-status--error   { background: var(--cb-danger-light); color: var(--cb-danger-dark); border: 1px solid #fecaca; }
@keyframes cb-fadein { from { opacity: 0; transform: translateY(-5px); } to { opacity: 1; transform: translateY(0); } }

/* ── Modal ──────────────────────────────────────────────────────────────── */
.cb-modal-backdrop {
    position: fixed; inset: 0;
    background: rgba(15, 23, 42, 0.55);
    display: flex; align-items: center; justify-content: center;
    z-index: 100000;
    animation: cb-backdrop-in .15s var(--cb-ease);
    backdrop-filter: blur(4px);
}
@keyframes cb-backdrop-in { from { opacity: 0; } to { opacity: 1; } }

.cb-modal {
    background: var(--cb-bg-card);
    border-radius: var(--cb-r-xl);
    padding: 36px 30px;
    width: 100%; max-width: 420px;
    text-align: center;
    box-shadow: var(--cb-shadow-xl);
    animation: cb-modal-in .22s var(--cb-spring);
    border: 1px solid var(--cb-border);
}
@keyframes cb-modal-in {
    from { opacity: 0; transform: scale(.9) translateY(10px); }
    to   { opacity: 1; transform: scale(1) translateY(0); }
}
.cb-modal__icon {
    width: 64px; height: 64px; border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    margin: 0 auto 20px;
}
.cb-modal__icon--danger {
    background: linear-gradient(135deg, #fee2e2, #fecaca);
    box-shadow: 0 4px 16px rgba(220,38,38,.2);
}
.cb-modal__icon--danger svg { width: 28px; height: 28px; stroke: var(--cb-danger); }
.cb-modal h3 { font-size: 18px; font-weight: 800; color: var(--cb-text); margin: 0 0 10px; letter-spacing: -.2px; }
.cb-modal p  { font-size: 14px; color: var(--cb-text-muted); line-height: 1.65; margin: 0 0 26px; }
.cb-modal__actions { display: flex; gap: 10px; justify-content: center; }
.cb-modal__actions .cb-btn { flex: 1; }

/* ── Layouts ────────────────────────────────────────────────────────────── */
.cb-two-col {
    display: grid;
    grid-template-columns: 420px 1fr;
    gap: 20px; align-items: start;
}
@media (max-width: 1100px) { .cb-two-col { grid-template-columns: 1fr; } }

.cb-form-layout {
    display: grid;
    grid-template-columns: 1fr 310px;
    gap: 20px; align-items: start;
}
.cb-form-main,
.cb-form-sidebar { display: flex; flex-direction: column; }
@media (max-width: 1120px) {
    .cb-form-layout { grid-template-columns: 1fr; }
    .cb-form-sidebar { order: -1; }
}

/* ── Repeater ───────────────────────────────────────────────────────────── */
.cb-repeater { display: flex; flex-direction: column; gap: 8px; margin-bottom: 14px; }

.cb-repeater-item {
    display: flex; gap: 8px; align-items: flex-start;
    background: var(--cb-primary-faint);
    border: 1.5px solid var(--cb-border);
    border-radius: var(--cb-r-sm);
    padding: 10px 12px;
    animation: cb-fadein .15s var(--cb-ease);
    transition: border-color var(--cb-t) var(--cb-ease), box-shadow var(--cb-t) var(--cb-ease);
}
.cb-repeater-item:hover { border-color: var(--cb-gray-300); box-shadow: var(--cb-shadow-xs); }

.cb-drag-handle { cursor: grab; color: var(--cb-text-faint); padding-top: 2px; flex-shrink: 0; }
.cb-drag-handle:active { cursor: grabbing; }
.cb-drag-handle svg { width: 15px; height: 15px; }

.cb-repeater-item__content { flex: 1; }
.cb-repeater-item input,
.cb-repeater-item textarea {
    width: 100%; border: none; background: transparent;
    font-size: 13.5px; font-family: var(--cb-font);
    color: var(--cb-text); outline: none; padding: 0; resize: none;
}
.cb-repeater-item input::placeholder,
.cb-repeater-item textarea::placeholder { color: var(--cb-text-faint); }

.cb-repeater-item__remove {
    width: 22px; height: 22px; flex-shrink: 0;
    cursor: pointer; color: var(--cb-text-faint);
    background: none; border: none; padding: 0;
    display: flex; align-items: center; justify-content: center;
    border-radius: var(--cb-r-xs);
    transition: all var(--cb-t) var(--cb-ease); margin-top: 2px;
}
.cb-repeater-item__remove:hover { color: var(--cb-danger); background: var(--cb-danger-light); }
.cb-repeater-item__remove svg { width: 13px; height: 13px; }

.cb-repeater--units .cb-repeater-item { flex-direction: column; gap: 10px; }
.cb-unit-row { display: grid; grid-template-columns: 100px 1fr; gap: 10px; }
.cb-repeater--compact .cb-repeater-item { padding: 8px 10px; }

/* ── Image Upload ────────────────────────────────────────────────────────── */
.cb-image-upload {
    border: 2px dashed var(--cb-border);
    border-radius: var(--cb-r); overflow: hidden;
    transition: all var(--cb-t) var(--cb-ease); cursor: pointer;
}
.cb-image-upload:hover { border-color: var(--cb-primary); background: var(--cb-primary-light); }
.cb-image-upload__preview {
    aspect-ratio: 16/7;
    display: flex; align-items: center; justify-content: center;
    overflow: hidden; background: var(--cb-gray-50);
}
.cb-image-upload__preview img { width: 100%; height: 100%; object-fit: cover; }
.cb-image-upload__placeholder {
    display: flex; flex-direction: column;
    align-items: center; gap: 8px;
    color: var(--cb-text-muted); padding: 20px;
}
.cb-image-upload__placeholder svg { width: 34px; height: 34px; stroke: var(--cb-text-faint); }
.cb-image-upload__placeholder span { font-size: 13px; font-weight: 600; }
.cb-image-upload__actions {
    padding: 10px 14px; display: flex; gap: 8px;
    border-top: 1px solid var(--cb-border); background: var(--cb-bg-card);
}

/* ── Photo Upload ────────────────────────────────────────────────────────── */
.cb-photo-upload { flex-direction: column; align-items: center; gap: 6px; flex-shrink: 0; }
.cb-photo-upload__preview {
    width: 88px; height: 88px; border-radius: 50%;
    border: 2.5px dashed var(--cb-border);
    overflow: hidden; cursor: pointer;
    transition: all var(--cb-t) var(--cb-ease);
}
.cb-photo-upload__preview:hover {
    border-color: var(--cb-primary);
    box-shadow: 0 0 0 4px var(--cb-primary-glow);
}
.cb-photo-upload__preview img { width: 100%; height: 100%; object-fit: cover; }
.cb-photo-upload__placeholder {
    width: 100%; height: 100%;
    display: flex; align-items: center; justify-content: center;
    background: var(--cb-primary-faint);
}
.cb-photo-upload__placeholder svg { width: 30px; height: 30px; stroke: var(--cb-text-faint); }
.cb-photo-upload__actions { display: flex; gap: 5px; justify-content: center; }
.cb-photo-upload__btn {
    width: 28px; height: 28px; border-radius: var(--cb-r-xs);
    border: 1.5px solid var(--cb-border);
    background: var(--cb-bg-card);
    display: flex; align-items: center; justify-content: center;
    cursor: pointer; transition: all var(--cb-t) var(--cb-ease);
    color: var(--cb-text-muted); box-shadow: var(--cb-shadow-xs);
}
.cb-photo-upload__btn svg { width: 13px; height: 13px; }
.cb-photo-upload__btn:hover { background: var(--cb-primary-light); border-color: var(--cb-primary); color: var(--cb-primary); }
.cb-photo-upload__btn--remove:hover { background: var(--cb-danger-light); border-color: var(--cb-danger); color: var(--cb-danger); }

/* ── Misc ───────────────────────────────────────────────────────────────── */
.cb-code {
    font-family: var(--cb-mono); font-size: 11.5px;
    background: var(--cb-gray-100);
    border: 1px solid var(--cb-border);
    padding: 2px 7px; border-radius: var(--cb-r-xs);
    color: var(--cb-gray-700);
}
.cb-count { font-weight: 800; color: var(--cb-text); }
.cb-muted  { color: var(--cb-text-muted); }

.cb-course-title strong { display: block; font-size: 13.5px; font-weight: 700; color: var(--cb-text); margin-bottom: 2px; }
.cb-course-subtitle { font-size: 12px; color: var(--cb-text-muted); }

/* ── Age Range ──────────────────────────────────────────────────────────── */
.cb-age-range { display: flex; align-items: center; gap: 10px; }
.cb-age-range__field { display: flex; flex-direction: column; gap: 4px; flex: 1; }
.cb-age-range__label {
    font-size: 11px; font-weight: 800;
    text-transform: uppercase; letter-spacing: .5px;
    color: var(--cb-primary);
}
.cb-age-range__sep { flex-shrink: 0; display: flex; align-items: flex-end; padding-bottom: 8px; color: var(--cb-text-faint); }
.cb-age-range__sep svg { width: 20px; height: 20px; }
.cb-age-range__preview { flex-shrink: 0; display: flex; align-items: flex-end; padding-bottom: 4px; }
.cb-age-range__preview span {
    display: inline-flex; align-items: center;
    padding: 5px 12px; border-radius: var(--cb-r-full);
    font-size: 12.5px; font-weight: 700;
    background: var(--cb-gray-100); color: var(--cb-text-muted);
    border: 1.5px solid var(--cb-border);
    transition: all var(--cb-t) var(--cb-ease); white-space: nowrap;
}
.cb-age-range__preview--active span {
    background: var(--cb-primary-light); color: var(--cb-primary);
    border-color: #b8c8f0;
}

/* ── Teacher Form ───────────────────────────────────────────────────────── */
.cb-teacher-top-row { display: flex; gap: 16px; align-items: flex-start; margin-bottom: 18px; }
.cb-teacher-top-fields { flex: 1; }
.cb-photo-upload { display: flex; }

.cb-teacher-name { display: block; font-size: 13.5px; font-weight: 700; color: var(--cb-text); margin-bottom: 3px; }
.cb-teacher-bio { font-size: 12px; color: var(--cb-text-muted); line-height: 1.5; margin: 0; max-width: 260px; }

/* ── Pill Count ─────────────────────────────────────────────────────────── */
.cb-pill-count {
    display: inline-flex; align-items: center;
    padding: 6px 14px; border-radius: var(--cb-r-full);
    background: rgba(255,255,255,.18);
    border: 1px solid rgba(255,255,255,.3);
    color: #fff; font-size: 13px; font-weight: 700;
    backdrop-filter: blur(4px);
}

/* ── Select2 ────────────────────────────────────────────────────────────── */
.select2-container--default .select2-selection--multiple {
    border: 1.5px solid var(--cb-border) !important;
    border-radius: var(--cb-r-sm) !important;
    min-height: 42px !important; padding: 4px 8px !important;
}
.select2-container--default.select2-container--focus .select2-selection--multiple {
    border-color: var(--cb-primary) !important;
    box-shadow: 0 0 0 3.5px var(--cb-primary-glow) !important;
}
.select2-container--default .select2-selection--multiple .select2-selection__choice {
    background: var(--cb-primary-light) !important;
    border: 1px solid #b8c8f0 !important;
    color: var(--cb-primary) !important;
    border-radius: var(--cb-r-xs) !important;
    padding: 2px 8px !important;
    font-size: 12.5px !important; font-weight: 600 !important;
}
.select2-dropdown {
    border: 1.5px solid var(--cb-border) !important;
    border-radius: var(--cb-r-sm) !important;
    box-shadow: var(--cb-shadow-md) !important;
}
.select2-results__option--highlighted { background: var(--cb-primary) !important; }

/* ── Toast ──────────────────────────────────────────────────────────────── */
#cb-toast-container {
    position: fixed; bottom: 28px; right: 28px;
    z-index: 200000;
    display: flex; flex-direction: column; gap: 8px;
    pointer-events: none;
}
.cb-toast {
    display: flex; align-items: center; gap: 10px;
    background: var(--cb-gray-900); color: #fff;
    padding: 13px 18px; border-radius: var(--cb-r);
    font-size: 13.5px; font-weight: 600;
    box-shadow: var(--cb-shadow-lg);
    pointer-events: all;
    animation: cb-toast-in .22s var(--cb-spring);
    max-width: 340px;
    border: 1px solid rgba(255,255,255,.1);
}
.cb-toast--success { background: linear-gradient(135deg, var(--cb-primary-dark), var(--cb-primary)); }
.cb-toast--error   { background: linear-gradient(135deg, var(--cb-accent-dark), var(--cb-accent)); }
.cb-toast svg { width: 17px; height: 17px; flex-shrink: 0; }
@keyframes cb-toast-in { from { opacity: 0; transform: translateY(14px) scale(.94); } to { opacity: 1; transform: translateY(0) scale(1); } }
@keyframes cb-toast-out { from { opacity: 1; } to { opacity: 0; transform: translateY(8px) scale(.96); } }

/* ── Responsive ─────────────────────────────────────────────────────────── */
@media (max-width: 900px) {
    .cb-stat-row { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 782px) {
    .cb-wrap { padding: 16px 12px 40px; }
    .cb-page-header--gradient { padding: 22px 20px; }
    .cb-filters { flex-direction: column; }
    .cb-stat-row { grid-template-columns: 1fr 1fr; }
}

/* ── YouTube Input ───────────────────────────────────────────────────────── */
.cb-youtube-input {
    display: flex;
    align-items: stretch;
    border: 1.5px solid var(--cb-border);
    border-radius: var(--cb-r-sm);
    overflow: hidden;
    transition: border-color var(--cb-t) var(--cb-ease), box-shadow var(--cb-t) var(--cb-ease);
}

.cb-youtube-input:focus-within {
    border-color: #EF3E26;
    box-shadow: 0 0 0 3.5px rgba(239, 62, 38, .12);
}

.cb-youtube-input__prefix {
    display: flex;
    align-items: center;
    padding: 0 13px;
    background: #fff5f4;
    border-right: 1.5px solid #fcc8c2;
    flex-shrink: 0;
}

.cb-youtube-input__prefix svg {
    width: 20px;
    height: 20px;
}

.cb-youtube-input__field {
    flex: 1;
    border: none !important;
    border-radius: 0 !important;
    box-shadow: none !important;
    outline: none;
    padding: 9px 14px;
    font-size: 13.5px;
    font-family: var(--cb-font);
    color: var(--cb-text);
    background: #fff;
}

.cb-youtube-input__field::placeholder { color: var(--cb-text-faint); }


/* ── Course Preview Button ─────────────────────────────────────── */
.cb-preview-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    padding: 11px 16px;
    background: var(--cb-primary-faint);
    border: 1.5px solid var(--cb-primary);
    border-radius: 8px;
    color: var(--cb-primary);
    font-size: 13.5px;
    font-weight: 700;
    font-family: inherit;
    text-decoration: none;
    cursor: pointer;
    transition: background .15s, box-shadow .15s, transform .15s;
    line-height: 1;
}
.cb-preview-btn:hover {
    background: var(--cb-primary);
    color: #fff;
    box-shadow: 0 4px 14px rgba(36,64,146,.25);
    transform: translateY(-1px);
    text-decoration: none;
}
.cb-preview-btn svg {
    width: 15px; height: 15px; flex-shrink: 0;
}

/* Preview action button */
.cb-action-btn--preview { color: var(--cb-teal, #0d9488); }
.cb-action-btn--preview:hover { background: rgba(13,148,136,0.12); color: var(--cb-teal, #0d9488); }

/* ── Version / Changelog Banner ──────────────────────────────────────────── */
.cb-version-banner {
    background: linear-gradient(135deg, #eef2ff 0%, #f0fdf4 100%);
    border: 1.5px solid #c7d2fe;
    border-left: 5px solid var(--cb-primary);
    border-radius: 12px;
    margin-bottom: 22px;
    overflow: hidden;
    animation: cbBannerIn .4s ease;
}
@keyframes cbBannerIn {
    from { opacity: 0; transform: translateY(-10px); }
    to   { opacity: 1; transform: translateY(0); }
}
.cb-version-banner__inner {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 18px 20px;
}
.cb-version-banner__icon {
    font-size: 1.8rem;
    line-height: 1;
    flex-shrink: 0;
    margin-top: 2px;
}
.cb-version-banner__content {
    flex: 1;
}
.cb-version-banner__content strong {
    display: block;
    font-size: 14.5px;
    font-weight: 800;
    color: var(--cb-primary);
    margin-bottom: 10px;
}
.cb-version-banner__log {
    list-style: none;
    margin: 0; padding: 0;
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.cb-version-banner__log li {
    font-size: 13px;
    color: #334155;
    line-height: 1.5;
}
.cb-version-banner__log li strong {
    display: inline;
    font-size: inherit;
    color: #1e293b;
    margin-bottom: 0;
}
.cb-version-banner__close {
    background: none;
    border: none;
    color: #94a3b8;
    font-size: 16px;
    cursor: pointer;
    padding: 2px 6px;
    border-radius: 6px;
    flex-shrink: 0;
    transition: background .15s, color .15s;
    line-height: 1;
}
.cb-version-banner__close:hover {
    background: #e2e8f0;
    color: #475569;
}

/* Teacher name as link */
.cb-teacher-name-link { text-decoration: none; }
.cb-teacher-name-link:hover .cb-teacher-name { color: var(--cb-primary); text-decoration: underline; }