body {
    /* background: rgb(95, 157, 151); */
    /* background: linear-gradient(90deg, rgb(21, 128, 155), rgba(95, 157, 152, 1) 27%, 54%, rgb(132, 132, 132) 100%); */
    margin: 0;
    padding: 0;
    font-family: 'Poppins', sans-serif;
    background: url('./src/pics/image-cache.jpg') no-repeat center center fixed;
    box-sizing: border-box;
    background-size: cover;
    /* font-family: 'Arial', sans-serif; */
    color: #fff;
    position: relative;
    overflow-x: hidden;
}

.container {
    display: flex;
    position: relative;
    z-index: 2;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 50vh;
    text-align: center;
    animation: fadeIn 1.5s ease-out;
    /* padding: 20px; */
}

.overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

header {
    width: 100%;
}

header nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 20px
}

.nav-left img {
    height: 45px;
    width: auto;
    filter: drop-shadow(0 0 10px rgba(255, 255, 255, 0.5));
}

.nav-right a {
    margin-left: 15px;
    text-decoration: none;
    color: #fff;
    font-weight: bold;
    transition: color 0.3s, transform 0.3s;
}

.nav-right a:hover {
    color: #ffcb42;
    transform: scale(1.1);
}

header h1 {
    font-size: 2.2rem;
    /* margin-bottom: 10px; */
    text-shadow: 0 4px 8px rgba(0, 0, 0, 0.7);
    color: white;
    margin-top: 0px;
    margin-bottom: 0px;
}

header p {
    font-size: 1rem;
    font-style: italic;
    margin-bottom: 30px;
    padding-left: 2px;
    padding-right: 2px;
    margin-top: 0px;
    color: #fff;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

.os-selection {
    display: flex;
    justify-content: center;
    gap: 30px;
    animation: slideUp 1.5s ease-out;
}

@keyframes slideUp {
    from {
        transform: translateY(50px);
        opacity: 0;
    }

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

.os-card {
    /* background: linear-gradient(145deg, #2d2d2d, #1b1b1b); */
    background: url('./src/pics/image-cache.jpg') no-repeat center center fixed;
    border-radius: 10px;
    box-shadow:
        8px 8px 16px rgba(0, 0, 0, 0.6),
        -8px -8px 16px rgba(255, 255, 255, 0.2),
        inset 4px 4px 8px rgba(0, 0, 0, 0.5),
        inset -4px -4px 8px rgba(255, 255, 255, 0.1);
    padding: 10px;
    width: 230px;
    text-align: center;
    transition: transform 0.4s ease, box-shadow 0.4s ease;
    transform-style: preserve-3d;
    perspective: 1000px;
    margin-bottom: 20px;
}

.os-card:hover {
    transform: translateY(-15px) rotateX(10deg) rotateY(5deg) scale(1.05);
    box-shadow:
        12px 12px 24px rgba(0, 0, 0, 0.8),
        -12px -12px 24px rgba(255, 255, 255, 0.2),
        inset 6px 6px 12px rgba(0, 0, 0, 0.6),
        inset -6px -6px 12px rgba(255, 255, 255, 0.15);
}

.os-card img {
    width: 180px;
    height: 140px;
    margin-bottom: 10px;
    filter: drop-shadow(0 5px 10px rgba(255, 255, 255, 0.5));
    transform: translateZ(20px);
    transition: transform 0.4s ease;
}

.os-card:hover img {
    transform: translateZ(30px) rotate(5deg);
}

.os-card h2 {
    font-size: 1.5rem;
    margin-top: 10px;
    color: #ffcb42;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.6);
    transform: translateZ(10px);
    text-align: center;
}

.os-card h2 a {
    text-decoration: none;
    color: #fff;
    transition: color 0.3s;
}

.os-card h2 a:hover {
    color: #ffcb42;
}

footer {
    width: 100%;
    padding: 8px 0;
    text-align: center;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.5);
    margin-top: 2rem;
}

.footer-content {
    color: #fff;
}

.footer-content p {
    margin: 0;
    font-size: 1rem;
}

.footer-content .social-links {
    margin-top: 5px;
}

.footer-content .social-links a {
    color: #fff;
    text-decoration: none;
    margin: 0 8px;
    font-size: 1.2rem;
    transition: color 0.3s ease;
}

.footer-content .social-links a:hover {
    color: #ffcb42;
}

@media (max-width: 1200px) {
    header h1 {
        font-size: 2.3rem;
    }

    header p {
        font-size: 1.1rem;
    }

    .os-card {
        width: 210px;
    }

    .os-card img {
        width: 170px;
        height: 130px;
    }

    .os-card h2 {
        font-size: 1.4rem;
    }
}

@media (max-width: 992px) {
    header h1 {
        font-size: 2rem;
    }

    header p {
        font-size: 1rem;
        margin-bottom: 25px;
    }

    .os-card {
        width: 180px;
    }

    .os-card img {
        width: 150px;
        height: 120px;
    }

    .os-card h2 {
        font-size: 1.3rem;
    }
}

@media (max-width: 768px) {
    header nav {
        flex-direction: column;
        align-items: flex-start;
    }

    .nav-right a {
        font-size: 0.95rem;
        margin-left: 0;
        margin-right: 10px;
    }

    header h1 {
        font-size: 1.8rem;
    }

    header p {
        font-size: 0.95rem;
        margin-bottom: 20px;
    }

    .os-card {
        width: 160px;
        padding: 10px;
    }

    .os-card img {
        width: 140px;
        height: 110px;
    }

    .os-card h2 {
        font-size: 1.2rem;
    }
}

@media (max-width: 576px) {
    header h1 {
        font-size: 1.6rem;
    }

    header p {
        font-size: 0.9rem;
    }

    .os-card {
        width: 140px;
        padding: 8px;
    }

    .os-card img {
        width: 120px;
        height: 90px;
    }

    .os-card h2 {
        font-size: 1rem;
    }

    footer {
        padding: 8px 0;
    }

    .footer-content p {
        font-size: 0.9rem;
    }

    .footer-content .social-links a {
        font-size: 1rem;
        margin: 0 8px;
    }
}


@media (max-width: 1200px) {
    header h1 {
        font-size: 2rem;
    }

    .os-card {
        width: 200px;
    }
}

@media (max-width: 768px) {
    .os-selection {
        flex-direction: column;
    }

    .nav-left img {
        height: 35px;
    }

    header h1 {
        font-size: 1.8rem;
    }

    header p {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    header nav {
        flex-direction: column;
        align-items: center;
    }

    .nav-right {
        flex-direction: column;
        gap: 10px;
    }

    header h1 {
        font-size: 1.5rem;
    }

    header p {
        font-size: 0.9rem;
    }

    .os-card {
        width: 100%;
    }
}

@media (max-width: 400px) {
    header h1 {
        font-size: 1.2rem;
    }

    header p {
        font-size: 0.8rem;
    }

    .os-card h2 {
        font-size: 1.2rem;
    }

    .footer-content {
        font-size: 0.8rem;
    }
}


/* h1 {
    margin: 0;
    font-size: 2rem;
} */

/* section {
    padding: 2rem;
    max-width: 800px;
    margin: 0 auto;
    margin-top: 1rem;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
} */


/* h2 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
}

p {
    margin: 1rem 0;
} */