/* ==========================================================================
   Chùa Khai Nguyên - Bộ Não AI Gợi Ý Xu Hướng & Phật Sự (Angular.dev Design)
   Global Right-Corner Smart Recommendation Widget
   Uses explicit px units so Bootstrap 3 (1rem=10px) & HTML5 pages match 100%
   ========================================================================== */

:root {
    --ckn-ng-grad: linear-gradient(90deg, #f0060b 0%, #f637e3 50%, #7702ff 100%);
    --ckn-ng-grad-btn: linear-gradient(135deg, #e90464 0%, #8514f5 100%);
    --ckn-ng-grad-soft: linear-gradient(135deg, rgba(240, 6, 11, 0.08) 0%, rgba(246, 55, 227, 0.10) 50%, rgba(119, 2, 255, 0.10) 100%);
    --ckn-ng-surface: rgba(255, 255, 255, 0.97);
    --ckn-ng-surface-2: #f6f5fa;
    --ckn-ng-border: rgba(21, 20, 25, 0.11);
    --ckn-ng-text: #151419;
    --ckn-ng-muted: #5c5966;
    --ckn-ng-pink: #e90464;
    --ckn-ng-violet: #7702ff;
    --ckn-ng-shadow: 0 20px 50px rgba(21, 20, 25, 0.18), 0 4px 14px rgba(119, 2, 255, 0.10);
}

body.dark {
    --ckn-ng-surface: rgba(22, 21, 28, 0.96);
    --ckn-ng-surface-2: rgba(255, 255, 255, 0.06);
    --ckn-ng-border: rgba(255, 255, 255, 0.14);
    --ckn-ng-text: #fbfaff;
    --ckn-ng-muted: #a8a4b8;
    --ckn-ng-shadow: 0 22px 54px rgba(0, 0, 0, 0.55), 0 0 24px rgba(246, 55, 227, 0.14);
}

/* Floating Docked Pill (Right Edge, safely above scroll-tools & chatbot) */
.ckn-ng-dock-btn {
    position: fixed;
    right: 18px;
    bottom: 236px;
    z-index: 9996;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 9px 15px 9px 11px;
    border-radius: 999px;
    border: 1px solid rgba(246, 55, 227, 0.35);
    background: var(--ckn-ng-surface);
    color: var(--ckn-ng-text);
    box-shadow: 0 10px 28px rgba(119, 2, 255, 0.22);
    cursor: pointer;
    font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
    font-size: 13px;
    font-weight: 700;
    line-height: 1.2;
    transition: transform 0.22s cubic-bezier(0.2, 0.8, 0.2, 1), box-shadow 0.22s ease, opacity 0.22s ease;
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
}

.ckn-ng-dock-btn:hover {
    transform: translateY(-2px) scale(1.03);
    box-shadow: 0 14px 32px rgba(233, 4, 100, 0.30);
}

.ckn-ng-dock-btn.is-hidden {
    opacity: 0;
    pointer-events: none;
    transform: translateX(24px) scale(0.92);
}

.ckn-ng-dock-icon {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--ckn-ng-grad);
    color: #fff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    box-shadow: 0 2px 8px rgba(233, 4, 100, 0.4);
    flex-shrink: 0;
}

.ckn-ng-dock-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #10b981;
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.22);
    animation: cknNgPulse 2s infinite;
}

@keyframes cknNgPulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.25); opacity: 0.72; }
}

/* Main Right-Corner Notification Window */
.ckn-ng-toast {
    position: fixed;
    right: 18px;
    bottom: 232px;
    width: 378px;
    max-width: calc(100vw - 24px);
    z-index: 9997;
    background: var(--ckn-ng-surface);
    color: var(--ckn-ng-text);
    border: 1px solid var(--ckn-ng-border);
    border-radius: 18px;
    box-shadow: var(--ckn-ng-shadow);
    overflow: hidden;
    font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
    font-size: 13px;
    line-height: 1.45;
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    transform: translateX(420px) scale(0.96);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.34s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.28s ease;
}

.ckn-ng-toast.is-open {
    transform: translateX(0) scale(1);
    opacity: 1;
    pointer-events: auto;
}

/* Signature Angular.dev Top Gradient Accent */
.ckn-ng-toast-bar {
    height: 4px;
    width: 100%;
    background: var(--ckn-ng-grad);
}

/* Progress timer bar when auto-rotating */
.ckn-ng-progress-wrap {
    height: 2px;
    width: 100%;
    background: rgba(119, 2, 255, 0.08);
    overflow: hidden;
}

.ckn-ng-progress-fill {
    height: 100%;
    width: 0%;
    background: var(--ckn-ng-grad);
    transition: width 0.25s linear;
}

/* Header */
.ckn-ng-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    padding: 11px 13px 9px;
    border-bottom: 1px solid var(--ckn-ng-border);
    background: var(--ckn-ng-grad-soft);
}

.ckn-ng-brand {
    display: flex;
    align-items: center;
    gap: 9px;
    min-width: 0;
}

.ckn-ng-brain-badge {
    width: 30px;
    height: 30px;
    border-radius: 9px;
    background: var(--ckn-ng-grad);
    color: #fff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    flex-shrink: 0;
    box-shadow: 0 4px 12px rgba(233, 4, 100, 0.32);
}

.ckn-ng-brand-meta {
    min-width: 0;
}

.ckn-ng-brand-title {
    font-size: 13px;
    font-weight: 800;
    letter-spacing: -0.01em;
    margin: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    background: var(--ckn-ng-grad);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.ckn-ng-brand-sub {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 11px;
    color: var(--ckn-ng-muted);
    margin-top: 1px;
}

.ckn-ng-device-pill {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 1px 7px;
    border-radius: 999px;
    background: var(--ckn-ng-surface-2);
    border: 1px solid var(--ckn-ng-border);
    font-size: 10.5px;
    font-weight: 600;
    color: var(--ckn-ng-text);
}

.ckn-ng-head-actions {
    display: flex;
    align-items: center;
    gap: 4px;
    flex-shrink: 0;
}

.ckn-ng-icon-btn {
    width: 26px;
    height: 26px;
    border-radius: 8px;
    border: 1px solid var(--ckn-ng-border);
    background: var(--ckn-ng-surface);
    color: var(--ckn-ng-muted);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 12px;
    padding: 0;
    transition: all 0.16s ease;
}

.ckn-ng-icon-btn:hover {
    color: var(--ckn-ng-pink);
    border-color: rgba(233, 4, 100, 0.4);
    background: rgba(233, 4, 100, 0.06);
}

/* AI Reasoning Box */
.ckn-ng-reason {
    margin: 9px 12px 7px;
    padding: 8px 10px;
    border-radius: 10px;
    background: var(--ckn-ng-surface-2);
    border-left: 3px solid #e90464;
    font-size: 11.8px;
    color: var(--ckn-ng-muted);
    line-height: 1.42;
}

.ckn-ng-reason strong {
    color: var(--ckn-ng-text);
    font-weight: 700;
}

/* Interactive User Taste Drawer (Collapsible) */
.ckn-ng-profile-drawer {
    display: none;
    margin: 0 12px 8px;
    padding: 9px 10px;
    border-radius: 11px;
    border: 1px dashed rgba(119, 2, 255, 0.32);
    background: rgba(119, 2, 255, 0.04);
    font-size: 11.5px;
}

.ckn-ng-profile-drawer.is-open {
    display: block;
}

.ckn-ng-profile-row {
    margin-bottom: 6px;
}

.ckn-ng-profile-row:last-child {
    margin-bottom: 0;
}

.ckn-ng-profile-label {
    font-weight: 700;
    color: var(--ckn-ng-text);
    display: block;
    margin-bottom: 3px;
    font-size: 11px;
}

.ckn-ng-mini-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
}

.ckn-ng-mini-tag {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 2px 8px;
    border-radius: 999px;
    background: var(--ckn-ng-surface);
    border: 1px solid var(--ckn-ng-border);
    color: var(--ckn-ng-text);
    font-size: 10.8px;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none !important;
}

.ckn-ng-mini-tag:hover {
    border-color: #e90464;
    color: #e90464;
}

/* Category Filter Strip (7 Categories + Smart Mix) */
.ckn-ng-cats {
    display: flex;
    gap: 5px;
    overflow-x: auto;
    padding: 2px 12px 8px;
    scrollbar-width: thin;
}

.ckn-ng-cats::-webkit-scrollbar {
    height: 4px;
}

.ckn-ng-cats::-webkit-scrollbar-thumb {
    background: rgba(119, 2, 255, 0.22);
    border-radius: 999px;
}

.ckn-ng-cat-pill {
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 4px 10px;
    border-radius: 999px;
    border: 1px solid var(--ckn-ng-border);
    background: var(--ckn-ng-surface);
    color: var(--ckn-ng-muted);
    font-size: 11.2px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.16s ease;
    white-space: nowrap;
}

.ckn-ng-cat-pill:hover {
    border-color: rgba(233, 4, 100, 0.45);
    color: var(--ckn-ng-text);
}

.ckn-ng-cat-pill.is-active {
    background: var(--ckn-ng-grad-btn);
    border-color: transparent;
    color: #fff;
    box-shadow: 0 3px 10px rgba(133, 20, 245, 0.28);
}

/* Featured Content Card inside Toast */
.ckn-ng-card-wrap {
    padding: 0 12px 10px;
}

.ckn-ng-item-card {
    display: grid;
    grid-template-columns: 112px minmax(0, 1fr);
    gap: 11px;
    padding: 9px;
    border-radius: 13px;
    border: 1px solid var(--ckn-ng-border);
    background: var(--ckn-ng-surface-2);
    text-decoration: none !important;
    color: var(--ckn-ng-text) !important;
    transition: border-color 0.18s ease, transform 0.18s ease, box-shadow 0.18s ease;
    align-items: center;
}

.ckn-ng-item-card:hover {
    border-color: #e90464;
    transform: translateY(-1px);
    box-shadow: 0 8px 20px rgba(233, 4, 100, 0.12);
}

.ckn-ng-thumb {
    position: relative;
    width: 112px;
    height: 76px;
    border-radius: 9px;
    overflow: hidden;
    background: linear-gradient(135deg, #2b1055 0%, #7597de 100%);
    flex-shrink: 0;
}

.ckn-ng-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.ckn-ng-thumb-fallback {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: #fff;
    text-align: center;
    padding: 6px;
    background: linear-gradient(135deg, #e90464 0%, #7702ff 55%, #0546ff 100%);
}

.ckn-ng-thumb-fallback i {
    font-size: 22px;
    margin-bottom: 3px;
    filter: drop-shadow(0 2px 4px rgba(0,0,0,0.3));
}

.ckn-ng-thumb-fallback span {
    font-size: 9.5px;
    font-weight: 700;
    opacity: 0.92;
    line-height: 1.15;
}

.ckn-ng-badge-float {
    position: absolute;
    bottom: 4px;
    left: 4px;
    padding: 2px 6px;
    border-radius: 6px;
    background: rgba(15, 15, 17, 0.82);
    color: #fff;
    font-size: 9.8px;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    gap: 3px;
}

.ckn-ng-item-body {
    min-width: 0;
}

.ckn-ng-item-cat {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 10.5px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.02em;
    color: #e90464;
    margin-bottom: 3px;
}

body.dark .ckn-ng-item-cat {
    color: #ff6ec7;
}

.ckn-ng-item-title {
    margin: 0 0 4px;
    font-size: 13px;
    font-weight: 700;
    line-height: 1.34;
    color: var(--ckn-ng-text);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.ckn-ng-item-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    font-size: 11px;
    color: var(--ckn-ng-muted);
}

/* Secondary Mini Item Row (2nd quick pick) */
.ckn-ng-sub-pick {
    margin-top: 7px;
    padding: 6px 9px;
    border-radius: 9px;
    border: 1px solid var(--ckn-ng-border);
    background: var(--ckn-ng-surface);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    text-decoration: none !important;
    color: var(--ckn-ng-text) !important;
    font-size: 11.6px;
    transition: border-color 0.15s ease;
}

.ckn-ng-sub-pick:hover {
    border-color: #7702ff;
}

.ckn-ng-sub-pick-left {
    display: flex;
    align-items: center;
    gap: 7px;
    min-width: 0;
}

.ckn-ng-sub-pick-tag {
    flex-shrink: 0;
    padding: 1px 6px;
    border-radius: 5px;
    background: rgba(119, 2, 255, 0.11);
    color: #7702ff;
    font-size: 10px;
    font-weight: 700;
}

body.dark .ckn-ng-sub-pick-tag {
    background: rgba(246, 55, 227, 0.18);
    color: #ff85df;
}

.ckn-ng-sub-pick-title {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-weight: 600;
}

/* Footer Action Buttons */
.ckn-ng-foot {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 6px;
    padding: 8px 12px 11px;
    border-top: 1px solid var(--ckn-ng-border);
}

.ckn-ng-btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 7px 13px;
    border-radius: 999px;
    border: none;
    background: var(--ckn-ng-grad-btn);
    color: #fff !important;
    font-size: 11.8px;
    font-weight: 700;
    text-decoration: none !important;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(233, 4, 100, 0.26);
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.ckn-ng-btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(233, 4, 100, 0.38);
}

.ckn-ng-btn-ghost {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 5px;
    padding: 6px 11px;
    border-radius: 999px;
    border: 1px solid var(--ckn-ng-border);
    background: var(--ckn-ng-surface-2);
    color: var(--ckn-ng-text) !important;
    font-size: 11.5px;
    font-weight: 700;
    text-decoration: none !important;
    cursor: pointer;
    transition: all 0.15s ease;
}

.ckn-ng-btn-ghost:hover {
    border-color: #7702ff;
    color: #7702ff !important;
}

body.dark .ckn-ng-btn-ghost:hover {
    border-color: #f637e3;
    color: #f637e3 !important;
}

/* Mobile Responsive Adjustments */
@media (max-width: 768px) {
    .ckn-ng-dock-btn {
        right: 12px;
        bottom: 162px;
        padding: 7px 12px 7px 9px;
        font-size: 12px;
    }

    .ckn-ng-dock-label-long {
        display: none;
    }

    .ckn-ng-toast {
        right: 10px;
        bottom: 88px;
        width: calc(100vw - 20px);
        max-width: 360px;
        border-radius: 16px;
    }

    .ckn-ng-item-card {
        grid-template-columns: 96px minmax(0, 1fr);
        gap: 9px;
    }

    .ckn-ng-thumb {
        width: 96px;
        height: 68px;
    }
}