/* ===== HERO SLIDER WITH SLICK CAROUSEL ===== */

/* Main Slider Container */
.hero-slider {
    height: calc(100vh - var(--nav-total-height, 120px)); /* viewport minus menus */
    position: relative;
    overflow: hidden;
    background: var(--dark);
    margin-top: 0; /* Không có margin */
}

/* Slick Slider Customization */
.hero-slider .slick-slider {
    height: 100%;
}

.hero-slider .slick-list,
.hero-slider .slick-track {
    height: 100%;
}

/* Slider Wrapper */
.hero-slider .slider-wrapper {
    position: relative;
    height: 100%;
}

/* Ensure proper layout */
body {
    position: relative;
}

/* Compute total nav height = top-bar + navbar on desktop */
:root {
    --nav-total-height: 120px; /* default desktop total */
}

@media (max-width: 991px) {
    :root {
        --nav-total-height: 95px; /* approximate mobile combined height */
    }
}

/* Ensure navbar stays on top */
.navbar {
    position: sticky;
    top: 0;
    z-index: 1000;
}

/* Ensure slider is visible */
.hero-slider {
    display: block !important;
    visibility: visible !important;
    min-height: 400px; /* Đảm bảo có chiều cao tối thiểu */
}

.slide {
    display: block !important;
    visibility: visible !important;
}

.hero-slider .slick-slide {
    height: calc(100vh - var(--nav-total-height, 120px)); /* match hero height */
    position: relative;
    display: block !important;
}

/* Each slide wrapper fills full height */
.slide { position: relative; height: 100%; background-size: cover; background-position: center; background-repeat: no-repeat; }

/* Make image cover the whole slide */
.slide-image {
    position: absolute; inset: 0; width: 100%; height: 100%;
    object-fit: cover; object-position: center;
    display: block;
}

/* Keep overlay and content above the image */
.slide-overlay { z-index: 1; }
.slide .container { position: relative; z-index: 2; height: 100%; display: flex; align-items: center; justify-content: center; }

/* Slide Content */
.slide-content {
    text-align: center;
    z-index: 2;
    position: relative;
    max-width: 800px;
    padding: 0 20px;
    animation: fadeInUp 1s ease;
    margin: 0 auto; /* Center content */
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Slide Overlay */
.slide-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.45); /* nhẹ hơn để không che ảnh */
    z-index: 1;
    pointer-events: none; /* không chặn tương tác */
}

/* Typography */
.slide-content h1 {
    font-size: 4rem;
    font-weight: 700;
    font-family: 'Dancing Script', cursive;
    color: var(--primary-yellow);
    margin-bottom: 20px;
    text-shadow: 3px 3px 6px rgba(0,0,0,0.7);
    line-height: 1.2;
}

.slide-content .subtitle {
    font-size: 1.5rem;
    color: var(--secondary-turquoise);
    margin-bottom: 30px;
    font-weight: 500;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.8);
}

.slide-content .lead {
    font-size: 1.1rem;
    color: var(--white);
    margin-bottom: 30px;
    text-shadow: 1px 1px 3px rgba(0,0,0,0.8);
}

/* Custom Button */
.btn-primary-custom {
    background: linear-gradient(45deg, var(--primary-yellow), #f0e968) !important;
    color: var(--dark) !important;
    border-radius: 50px;
    padding: 15px 40px;
    font-weight: 700;
    text-decoration: none;
    border: none;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(250,249,134,0.3);
    display: inline-block;
    position: relative;
    overflow: hidden;
}

.btn-primary-custom::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transition: left 0.5s ease;
}

.btn-primary-custom:hover {
    background: linear-gradient(45deg, var(--secondary-turquoise), #40e0d0) !important;
    color: var(--white) !important;
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(64,224,208,0.4);
}

.btn-primary-custom:hover::before {
    left: 100%;
}

/* Slick Dots Customization */
.hero-slider .slick-dots {
    position: absolute;
    bottom: 30px; /* đẩy lên 30px để nằm trong viewport */
    left: 0;
    right: 0;            /* trải full để căn giữa dễ dàng */
    transform: none;     /* không dùng translate để tránh lệch */
    width: 100%;
    display: flex !important;
    justify-content: center; /* căn giữa theo chiều ngang */
    align-items: center;
    gap: 12px;
    z-index: 10;
    margin: 0;
    padding: 0;
    list-style: none;
}

/* Loại bỏ khoảng trống mặc định của Slick dưới slider */
.hero-slider.slick-dotted.slick-slider {
    margin-bottom: 0 !important;
}

.hero-slider .slick-dots li {
    margin: 0;
}

.hero-slider .slick-dots li button {
    width: 15px;
    height: 15px;
    border-radius: 50%;
    background: rgba(255,255,255,0.5);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0;
    padding: 0;
    outline: none;
}

.hero-slider .slick-dots li.slick-active button {
    background: var(--primary-yellow);
    transform: scale(1.3);
    box-shadow: 0 0 10px rgba(250,249,134,0.5);
}

.hero-slider .slick-dots li button:hover {
    background: var(--secondary-turquoise);
    transform: scale(1.2);
}

/* Slick Arrows Customization */
.hero-slider .slick-prev,
.hero-slider .slick-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    background: rgba(0,0,0,0.6);
    border: 2px solid var(--primary-yellow);
    border-radius: 50%;
    color: var(--primary-yellow);
    font-size: 20px;
    cursor: pointer;
    z-index: 10;
    transition: all 0.3s ease;
    display: flex !important;
    align-items: center;
    justify-content: center;
}

.hero-slider .slick-prev {
    left: 50%;
    margin-left: -650px; /* Đặt trong container */
}

.hero-slider .slick-next {
    right: 50%;
    margin-right: -650px; /* Đặt trong container */
}

.hero-slider .slick-prev:hover,
.hero-slider .slick-next:hover {
    background: var(--primary-yellow);
    color: var(--dark);
    transform: translateY(-50%) scale(1.1);
    box-shadow: 0 5px 15px rgba(250,249,134,0.4);
}

.hero-slider .slick-prev:before,
.hero-slider .slick-next:before {
    font-family: 'Font Awesome 5 Free';
    font-weight: 900;
    font-size: 18px; /* Hiển thị icon */
    color: var(--primary-yellow);
}

.hero-slider .slick-prev:before {
    content: '\f104'; /* fa-angle-left */
}

.hero-slider .slick-next:before {
    content: '\f105'; /* fa-angle-right */
}

/* Ẩn text mặc định của Slick */
.hero-slider .slick-prev,
.hero-slider .slick-next {
    font-size: 0;
}

/* Responsive Design */
@media (max-width: 1200px) {
    .slide-content h1 {
        font-size: 3.5rem;
    }

    .slide-content .subtitle {
        font-size: 1.3rem;
    }
}

@media (max-width: 768px) {
    .slide-content h1 {
        font-size: 2.8rem;
        margin-bottom: 15px;
    }

    .slide-content .subtitle {
        font-size: 1.1rem;
        margin-bottom: 20px;
    }

    .slide-content .lead {
        font-size: 1rem;
        margin-bottom: 25px;
    }

    .btn-primary-custom {
        padding: 12px 30px;
        font-size: 0.9rem;
    }

    .hero-slider .slick-dots {
        bottom: 30px;
        gap: 10px;
    }

    .hero-slider .slick-dots li button {
        width: 12px;
        height: 12px;
    }

    .hero-slider .slick-prev,
    .hero-slider .slick-next {
        width: 40px;
        height: 40px;
        font-size: 16px;
    }

    .hero-slider .slick-prev {
        left: 50%;
        margin-left: -550px;
    }

    .hero-slider .slick-next {
        right: 50%;
        margin-right: -550px;
    }
}

@media (max-width: 480px) {
    .slide-content h1 {
        font-size: 2.2rem;
        margin-bottom: 12px;
    }

    .slide-content .subtitle {
        font-size: 1rem;
        margin-bottom: 15px;
    }

    .slide-content .lead {
        font-size: 0.9rem;
        margin-bottom: 20px;
    }

    .btn-primary-custom {
        padding: 10px 25px;
        font-size: 0.85rem;
    }

    .hero-slider .slick-dots {
        bottom: 25px;
        gap: 8px;
    }

    .hero-slider .slick-dots li button {
        width: 10px;
        height: 10px;
    }

    .hero-slider .slick-prev,
    .hero-slider .slick-next {
        width: 35px;
        height: 35px;
        font-size: 14px;
    }

    .hero-slider .slick-prev {
        left: 50%;
        margin-left: -350px;
    }

    .hero-slider .slick-next {
        right: 50%;
        margin-right: -350px;
    }
}

/* Fade Effect for Slick */
.hero-slider.slick-slider {
    opacity: 1;
    transition: opacity 0.3s ease;
}

.hero-slider.slick-initialized {
    opacity: 1;
}

/* Custom fade animation for slides */
@keyframes slideFadeIn {
    from {
        opacity: 0;
        transform: scale(1.1);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.hero-slider .slick-slide.slick-active .slide-content {
    animation: slideFadeIn 1s ease-out;
}