/* ===== ACHIEVEMENTS PAGE STYLES ===== */
.achievements-section {
    padding: var(--section-padding);
}

.achievements-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.achievement-item {
    background-color: var(--card-bg-color);
    padding: 30px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}

.achievement-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--secondary-color), var(--primary-color));
}

.achievement-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-large);
    border-color: var(--secondary-color);
}

.achievement-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--secondary-color), var(--primary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: white;
    margin-bottom: 20px;
    box-shadow: var(--shadow-medium);
}

.achievement-content h3 {
    color: var(--text-color);
    margin-bottom: 10px;
    font-size: 1.3rem;
}

.achievement-date {
    display: inline-block;
    background-color: var(--secondary-color);
    color: white;
    padding: 4px 12px;
    border-radius: 15px;
    font-size: 0.85rem;
    margin-bottom: 15px;
    font-weight: 600;
}

.achievement-content p {
    color: var(--text-color-light);
    line-height: 1.6;
    margin-bottom: 15px;
}

.achievement-content ul {
    padding-left: 20px;
    margin-top: 10px;
}

.achievement-content ul li {
    list-style: disc;
    color: var(--text-color-light);
    margin-bottom: 8px;
    line-height: 1.5;
}

/* CTF Certificates Section */
.certificates-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.certificate-card {
    background-color: var(--background-color);
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
    cursor: pointer;
}

.certificate-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-large);
    border-color: var(--secondary-color);
}

.certificate-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    background-color: var(--card-bg-color);
}

.certificate-info {
    padding: 20px;
}

.certificate-info h3 {
    color: var(--text-color);
    margin-bottom: 8px;
    font-size: 1.1rem;
}

.certificate-info p {
    color: var(--text-color-light);
    font-size: 0.9rem;
    margin: 0;
}

/* Image Modal/Carousel Styles */
.carousel-modal {
    display: none;
    position: fixed;
    z-index: 1050;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    background-color: rgba(0, 0, 0, 0.8);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.4s ease, visibility 0s linear 0.4s;
    align-items: center;
    justify-content: center;
}

.carousel-modal.active {
    display: flex;
    opacity: 1;
    visibility: visible;
    transition: opacity 0.4s ease, visibility 0s linear 0s;
}

body.modal-open {
    overflow: hidden;
}

.carousel-modal-content {
    background-color: var(--card-bg-color);
    color: var(--text-color);
    margin: auto;
    padding: 20px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    width: 90%;
    max-width: 900px;
    max-height: 90vh;
    position: relative;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    transform: scale(0.9) translateY(-10px);
    opacity: 0;
    transition: transform 0.4s cubic-bezier(0.18, 0.89, 0.32, 1.28), opacity 0.3s ease-out;
    display: flex;
    flex-direction: column;
}

.carousel-modal.active .carousel-modal-content {
    transform: scale(1) translateY(0);
    opacity: 1;
}

.carousel-close-btn {
    color: var(--text-color-light);
    position: absolute;
    top: 10px;
    right: 15px;
    font-size: 2.5rem;
    font-weight: lighter;
    line-height: 1;
    cursor: pointer;
    transition: color 0.3s ease, transform 0.3s ease;
    z-index: 10;
}

.carousel-close-btn:hover {
    color: var(--secondary-color);
    transform: scale(1.1);
}

.carousel-container {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #000;
    border-radius: 4px;
}

.carousel-image {
    display: block;
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    opacity: 1;
    transition: opacity 0.5s ease-in-out;
}

.carousel-image.loading {
    opacity: 0;
}

.carousel-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background-color: rgba(10, 25, 47, 0.6);
    color: #fff;
    border: none;
    border-radius: 50%;
    width: 45px;
    height: 45px;
    font-size: 1.5rem;
    font-weight: bold;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.3s ease, opacity 0.3s ease;
    z-index: 5;
    opacity: 0.7;
    user-select: none;
}

.carousel-arrow:hover {
    background-color: rgba(10, 25, 47, 0.9);
    opacity: 1;
}

.carousel-arrow:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

.prev-arrow {
    left: 15px;
}

.next-arrow {
    right: 15px;
}

.carousel-counter {
    position: absolute;
    bottom: 10px;
    left: 50%;
    transform: translateX(-50%);
    background-color: rgba(0, 0, 0, 0.6);
    color: #fff;
    padding: 3px 10px;
    border-radius: 10px;
    font-size: 0.85rem;
    z-index: 5;
}

/* ===== RESPONSIVE - ACHIEVEMENTS PAGE ===== */
@media screen and (max-width: 768px) {
    .achievements-list {
        grid-template-columns: 1fr;
    }

    .certificates-grid {
        grid-template-columns: 1fr;
    }

    .carousel-modal-content {
        width: 95%;
        padding: 15px;
    }

    .carousel-arrow {
        width: 35px;
        height: 35px;
        font-size: 1.2rem;
    }

    .prev-arrow {
        left: 10px;
    }

    .next-arrow {
        right: 10px;
    }

    .carousel-close-btn {
        font-size: 2rem;
    }
}