/* ==================== SLIDER SYSTEM - PRODUCTION READY ==================== */

/* --- Shared Slider Navigation System --- */
.slider-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.95);
    border: none;
    border-radius: 50%;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 100;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.18);
    color: #374151;
    -webkit-tap-highlight-color: transparent;
}

.slider-nav:hover {
    background: #fff;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
    transform: translateY(-50%) scale(1.08);
}

.slider-nav:active {
    transform: translateY(-50%) scale(0.95);
}

.slider-nav svg {
    width: 20px;
    height: 20px;
}

.slider-nav.prev {
    left: 16px;
}

.slider-nav.next {
    right: 16px;
}

/* Mobile: Smaller navigation */
@media (max-width: 768px) {
    .slider-nav {
        width: 36px;
        height: 36px;
    }

    .slider-nav.prev {
        left: 10px;
    }

    .slider-nav.next {
        right: 10px;
    }

    .slider-nav svg {
        width: 18px;
        height: 18px;
    }
}

/* --- Hero Slider --- */
.qh-hero-slider {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto 22px;
    padding: 0;
    position: relative;
}

.qh-hero-slider-wrap {
    position: relative;
    width: 100%;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 10px 36px rgba(0, 0, 0, 0.14);
}

.qh-hero-stage {
    position: relative;
    height: min(480px, 55vh);
    width: 100%;
    background: #111827;
}

.qh-hero-slide {
    position: absolute;
    inset: 0;
    opacity: 0;
    transition: opacity 0.7s ease;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
}

.qh-hero-slide.active {
    opacity: 1;
    z-index: 1;
}

.qh-hero-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transform: scale(1.02);
    transition: transform 0.7s ease;
}

.qh-hero-slide.active .qh-hero-video {
    transform: scale(1);
}

.qh-hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, rgba(0, 0, 0, 0), rgba(0, 0, 0, 0));
    display: flex;
    align-items: center;
}

.qh-hero-text {
    padding-left: 80px;
    max-width: 600px;
}

.qh-hero-text h2 {
    font-size: 48px;
    font-weight: 800;
    letter-spacing: 0.6px;
    color: #fff;
    margin: 0 0 12px;
}

.qh-hero-text p {
    font-size: 20px;
    color: rgba(255, 255, 255, 0.85);
    margin: 0;
}

/* Hero Dots */
.qh-hero-dots {
    position: absolute;
    bottom: 14px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 50;
}

.qh-hero-dot {
    width: 10px;
    height: 10px;
    border-radius: 999px;
    border: none;
    background: rgba(255, 255, 255, 0.45);
    cursor: pointer;
    transition: background 0.2s ease, transform 0.2s ease;
}

.qh-hero-dot:hover {
    background: rgba(255, 255, 255, 0.75);
    transform: scale(1.08);
}

.qh-hero-dot.active {
    background: rgba(255, 255, 255, 0.95);
}

/* Fallback text when video fails */
.qh-hero-fallback {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    color: rgba(255, 255, 255, 0.3);
}

/* --- Banner Slider --- */
.qh-banner-slider {
    display: block;
    width: 100%;
    max-width: 1400px;
    margin: 0 auto 22px;
    padding: 0;
    position: relative;
    box-sizing: border-box;
}

.qh-banner-slider-wrap {
    position: relative;
    width: 100%;
    overflow: hidden;
    /* LUÔN hidden - KHÔNG dùng visible */
    border-radius: 12px;
}

.qh-banner-track {
    display: flex;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    /* KHÔNG hard-code width - dùng flex tự động */
}

.qh-banner-item {
    min-width: 50%;
    /* Desktop: 2 banners = 50% each */
    flex-shrink: 0;
    box-sizing: border-box;
    padding: 0 4px;
    /* Small gap inside container */
}

/* Edge padding is handled by JS moveToSlide() for correct clone support */

.qh-banner-item a {
    display: block;
}

.qh-banner-item img {
    width: 100%;
    height: 180px;
    object-fit: cover;
    display: block;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

/* Banner: override vị trí tuyệt đối, phần còn lại kế thừa .qh-slider-nav */
.qh-banner-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 100;
}

.qh-banner-nav:hover {
    transform: translateY(-50%) scale(1.08);
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.14);
}

.qh-banner-nav:active {
    transform: translateY(-50%) scale(0.95);
}

.qh-banner-nav.prev {
    left: 16px;
}

.qh-banner-nav.next {
    right: 16px;
}

@media (max-width: 768px) {
    .qh-banner-nav.prev {
        left: 10px;
    }

    .qh-banner-nav.next {
        right: 10px;
    }
}

/* Responsive: Mobile - Hiển thị 1 banner */
@media (max-width: 768px) {
    .qh-hero-slider {
        padding: 0;
        margin-bottom: 14px;   /* Giảm từ 22px, đồng bộ với banner */
    }

    .qh-hero-slider-wrap {
        border-radius: 8px;    /* Đồng bộ với .qh-banner-slider-wrap mobile */
    }

    .qh-hero-stage {
        height: min(220px, 40vh);
    }

    .qh-hero-text {
        padding-left: 24px;
        padding-right: 24px;
    }

    .qh-hero-text h2 {
        font-size: 24px;
    }

    .qh-hero-text p {
        font-size: 14px;
    }

    /* Banner mobile: 1 banner full width, không padding, không gap */
    .qh-banner-slider {
        margin-bottom: 12px;
        padding: 0;
    }

    .qh-banner-slider-wrap {
        border-radius: 8px;
    }

    .qh-banner-track {
        /* Đảm bảo track chiều rộng bằng chính xác wrapper */
        width: 100%;
    }

    .qh-banner-item {
        min-width: 100%;
        width: 100%;
        flex: 0 0 100%;
        padding: 0 !important;  /* Xóa gap giữa các banner */
    }

    .qh-banner-item a {
        display: block;
        width: 100%;
    }

    .qh-banner-item img {
        width: 100%;
        height: auto;
        aspect-ratio: 2.5 / 1;
        object-fit: cover;
        border-radius: 8px;
        display: block;
    }

    /* Nav positions only — size handled by .qh-slider-nav mobile override */
    .qh-banner-nav {
        background: rgba(255, 255, 255, 0.85);
    }

    .qh-banner-nav.prev { left: 6px; }
    .qh-banner-nav.next { right: 6px; }

    .qh-hero-nav.prev { left: 8px; }
    .qh-hero-nav.next { right: 8px; }
}