* {
    box-sizing: border-box;
}

body {
    background-image: url('assets/rho.avif');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed;
    margin: 0;
    padding: 0;
    min-height: 100vh;
    overflow-x: hidden;
}

.certifications-container {
    display: flex;
    flex-direction: column;
    gap: clamp(20px, 4vw, 30px);
    padding: 2vh 2vw;
    margin-top: 2vh;
    max-width: 100vw;
    overflow-x: hidden;
}

.certification-card {
    background-color: #000000;
    border-radius: 25px;
    padding: clamp(15px, 3vw, 25px);
    color: white;
    font-family: monospace;
    margin: 0 auto;
    width: 100%;
    max-width: calc(100vw - 4vw);
    min-width: 250px;
    min-height: fit-content;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.certification-name {
    font-size: clamp(1.2rem, 4vw, 1.8rem);
    font-weight: bold;
    margin-bottom: 8px;
    color: #00bfff;
    text-align: center;
}

.certification-provider {
    font-size: clamp(1rem, 3vw, 1.2rem);
    color: #ffaa00;
    margin-bottom: 10px;
    font-style: italic;
    text-align: center;
}

.navigation {
    background-color: rgba(27, 27, 27, 0.62);
    border-radius: 25px;
    padding: clamp(15px, 3vw, 20px);
    margin: 2vh auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1fr 1fr;
    gap: clamp(1rem, 2vw, 1.5rem);
    width: fit-content;
    max-width: calc(100vw - 4vw);
    overflow: hidden;
    justify-items: center;
    align-items: center;
}

.nav-link {
    color: white;
    text-decoration: none;
    font-family: monospace;
    font-size: clamp(0.9rem, 2.5vw, 1.2rem);
    padding: clamp(8px, 2vw, 15px) clamp(10px, 2.5vw, 15px);
    border-radius: 10px;
    transition: background-color 0.3s;
    text-align: center;
    min-width: fit-content;
}

.nav-link:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

/* Mobile Devices (up to 768px) */
@media screen and (max-width: 768px) {
    body {
        padding: 0 4vw;
        overflow-x: hidden;
    }

    .certifications-container {
        padding: 1vh 0;
        gap: 20px;
        margin: 0 auto;
        max-width: calc(100vw - 8vw);
    }

    .certification-card {
        padding: 15px;
        width: 100%;
        max-width: calc(100vw - 8vw);
        min-width: 250px;
        margin: 0 auto;
    }

    .certification-name {
        font-size: clamp(1.1rem, 6vw, 1.4rem);
        margin-bottom: 6px;
        word-break: break-word;
    }

    .certification-provider {
        font-size: clamp(0.9rem, 5vw, 1.05rem);
        margin-bottom: 8px;
        word-break: break-word;
    }

    .navigation {
        display: grid;
        grid-template-columns: 1fr 1fr;
        grid-template-rows: 1fr 1fr;
        gap: 1rem;
        padding: 20px;
        width: 100%;
        max-width: calc(100vw - 8vw);
        margin: 2vh auto;
        justify-items: center;
        align-items: center;
    }

    .nav-link {
        padding: 15px 10px;
        font-size: 0.9rem;
        width: 100%;
        max-width: 150px;
        box-sizing: border-box;
        word-break: break-word;
        text-align: center;
        border-radius: 8px;
    }
}

/* Extra small mobile devices (up to 480px) */
@media screen and (max-width: 480px) {
    body {
        padding: 0 4vw;
        overflow-x: hidden;
    }

    .navigation {
        display: grid;
        grid-template-columns: 1fr 1fr;
        grid-template-rows: 1fr 1fr;
        gap: 0.8rem;
        padding: 15px;
        width: 100%;
        max-width: calc(100vw - 8vw);
        margin: 2vh auto;
        justify-items: center;
        align-items: center;
    }

    .nav-link {
        padding: 12px 8px;
        font-size: 0.8rem;
        width: 100%;
        max-width: 120px;
        box-sizing: border-box;
        word-break: break-word;
        text-align: center;
        border-radius: 6px;
    }
}

/* Tablet Devices (769px to 1024px) */
@media screen and (min-width: 769px) and (max-width: 1024px) {
    .certifications-container {
        padding: 2vh 4vw;
        max-width: 900px;
        margin: 0 auto;
    }

    .certification-card {
        padding: 20px;
        width: 85vw;
        max-width: 750px;
    }

    .navigation {
        gap: 1.5rem;
        max-width: 80vw;
        justify-items: center;
        align-items: center;
    }
}

/* Large Desktop (1025px and up) */
@media screen and (min-width: 1025px) {
    .certifications-container {
        max-width: 1000px;
        margin: 0 auto;
        padding: 2vh 5vw;
    }

    .certification-card {
        max-width: 800px;
    }

    .navigation {
        max-width: 700px;
    }
}

/* Ultra-wide screens (1440px and up) */
@media screen and (min-width: 1440px) {
    body {
        max-width: 1600px;
        margin: 0 auto;
    }

    .certifications-container {
        max-width: 1200px;
        padding: 3vh 6vw;
        gap: 2.5rem;
    }

    .certification-card {
        max-width: 1000px;
        padding: 2.5rem;
    }

    .certification-name {
        font-size: clamp(1.8rem, 3.5vw, 2.2rem);
        margin-bottom: 1rem;
    }

    .certification-provider {
        font-size: clamp(1.2rem, 2.5vw, 1.5rem);
        margin-bottom: 1.5rem;
    }

    .navigation {
        max-width: 900px;
        gap: 2.5rem;
        padding: 2rem;
    }

    .nav-link {
        font-size: clamp(1.1rem, 2vw, 1.3rem);
        padding: clamp(12px, 2.5vw, 18px) clamp(15px, 3vw, 20px);
    }
}