:root {
    --dark-blue: #002664;
    --white: #ffffff;
}

/* Full-screen hero slider */
.hero-slider {
    position: relative;
    width: 100%;
    height: 100vh;
    overflow: hidden;
}

/* Slide container */
.slides-container {
    position: relative;
    width: 100%;
    height: 100%;
}

/* Individual slide */
.slide {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0; left: 0;
    opacity: 0;
    transition: opacity 1.5s ease; /* gentle fade */
    display: flex;
    justify-content: center;
    align-items: center;
}

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

/* Full-screen image */
.slide img {
    position: absolute;
    width: 100%;
    height: 100%;
    object-fit: cover;
    top: 0; left: 0;
    z-index: 0;
}

/* Slide content box (glass style) */
.slide-content {
    position: absolute;
    top: 50%;
    left: 10%;
    transform: translateY(-50%);
    z-index: 2;
    color: var(--white);
    text-align: left;
    max-width: 600px;
    background: rgba(0, 38, 100, 0.25);
    backdrop-filter: blur(12px);
    border-radius: 10px;
    padding: 20px;
    opacity: 0;
    transition: opacity 1.5s ease, transform 1.5s ease;
}

.slide.active .slide-content {
    opacity: 1;
    transform: translateY(-50%) translateX(0);
}

/* Heading animations */
.slide-content h1 {
    font-size: 2.8rem;
    margin-bottom: 12px;
    font-weight: 700;
    opacity: 0;
    transform: translateX(-30px);
    animation: fadeInLeft 1s forwards;
}

.slide.active h1 {
    animation-delay: 0.3s;
}

/* Paragraph animations */
.slide-content p {
    font-size: 1.1rem;
    margin-bottom: 20px;
    line-height: 1.4;
    opacity: 0;
    transform: translateX(-30px);
    animation: fadeInLeft 1s forwards;
}

.slide.active p {
    animation-delay: 0.6s;
}

/* Button animations */
.slide-content .btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255,255,255,0.15);
    color: var(--white);
    padding: 10px 20px;
    border-radius: 6px;
    border: 1px solid var(--white);
    text-decoration: none;
    font-weight: 500;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.8s forwards;
}

.slide.active .btn {
    animation-delay: 0.9s;
}

/* Keyframes for animations */
@keyframes fadeInLeft {
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

/* Slider navigation buttons */
.slider-nav {
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    display: flex;
    justify-content: space-between;
    padding: 0 25px;
    transform: translateY(-50%);
    z-index: 5; /* ensure on top of slides */
}

.slider-nav button {
    background: rgba(0,0,0,0.35);
    border: none;
    color: var(--white);
    font-size: 2rem;
    padding: 12px 16px;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s ease;
}

.slider-nav button:hover {
    background: rgba(0,0,0,0.6);
}

/* Responsive adjustments */
@media (max-width: 900px) {
    .slide-content {
        left: 5%;
        max-width: 90%;
        padding: 15px;
    }
    .slide-content h1 {
        font-size: 2rem;
    }
    .slide-content p {
        font-size: 1rem;
    }
}