/* KizunaGo Scoped Popup Ads
   Safe, isolated popup styles. Does not touch flashcards.
*/

.kz-fullscreen-ad[hidden] {
    display: none !important;
}

.kz-fullscreen-ad {
    position: fixed;
    inset: 0;
    z-index: 2147483000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: clamp(16px, 3vw, 40px);
}

.kz-fullscreen-ad-backdrop {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at top left, rgba(47, 109, 246, 0.32), transparent 36%),
        rgba(15, 23, 42, 0.88);
    backdrop-filter: blur(10px);
}

.kz-fullscreen-ad-modal {
    position: relative;
    z-index: 1;
    width: min(1080px, 100%);
    max-height: min(86vh, 860px);
    overflow: hidden;
    border-radius: 28px;
    background: #0f172a;
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.18);
    box-shadow: 0 30px 100px rgba(0, 0, 0, 0.48);
    display: flex;
    flex-direction: column;
}

.kz-fullscreen-ad-header,
.kz-fullscreen-ad-footer {
    padding: 18px 22px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
}

.kz-fullscreen-ad-header {
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.kz-fullscreen-ad-footer {
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    background: rgba(15, 23, 42, 0.92);
}

.kz-fullscreen-ad .kz-ad-label {
    color: #93c5fd;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font-size: 0.72rem;
    font-weight: 800;
}

.kz-fullscreen-ad .kz-ad-title {
    font-size: clamp(1.05rem, 2vw, 1.55rem);
    font-weight: 900;
    letter-spacing: -0.03em;
    margin-top: 2px;
}

.kz-fullscreen-ad .kz-ad-body {
    color: #dbeafe;
    font-size: 0.95rem;
    line-height: 1.55;
}

.kz-fullscreen-ad-video {
    background: #000;
    width: 100%;
    aspect-ratio: 16 / 9;
    max-height: 62vh;
}

.kz-fullscreen-ad-video iframe,
.kz-fullscreen-ad-video video {
    width: 100%;
    height: 100%;
    border: 0;
    display: block;
}

body.kz-fullscreen-ad-open {
    overflow: hidden;
}

.kz-fullscreen-ad-close[disabled] {
    cursor: not-allowed;
    opacity: 0.72;
}

@media (max-width: 767.98px) {
    .kz-fullscreen-ad {
        padding: 10px;
    }

    .kz-fullscreen-ad-modal {
        border-radius: 22px;
        max-height: 92vh;
    }

    .kz-fullscreen-ad-header,
    .kz-fullscreen-ad-footer {
        flex-direction: column;
        align-items: stretch;
        padding: 14px;
    }
}