/* Mastery Section - Grid Pattern Theme */
#mastery {
    background: 
        linear-gradient(rgba(10, 10, 10, 0.9), rgba(10, 10, 10, 0.9)),
        repeating-linear-gradient(0deg, transparent, transparent 24px, rgba(255, 255, 255, 0.05) 24px, rgba(255, 255, 255, 0.05) 25px),
        repeating-linear-gradient(90deg, transparent, transparent 24px, rgba(255, 255, 255, 0.05) 24px, rgba(255, 255, 255, 0.05) 25px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

body.light-theme #mastery {
    background: 
        linear-gradient(rgba(245, 245, 245, 0.9), rgba(245, 245, 245, 0.9)),
        repeating-linear-gradient(0deg, transparent, transparent 24px, rgba(0, 0, 0, 0.03) 24px, rgba(0, 0, 0, 0.03) 25px),
        repeating-linear-gradient(90deg, transparent, transparent 24px, rgba(0, 0, 0, 0.03) 24px, rgba(0, 0, 0, 0.03) 25px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

/* Skills Section */
.skills-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2rem;
}

.skill-category {
    background-color: rgba(255, 255, 255, 0.03);
    padding: 2rem;
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition);
}

body.light-theme .skill-category {
    background-color: rgba(0, 0, 0, 0.03);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.skill-category:hover {
    transform: translateY(-5px);
    border-color: rgba(255, 255, 255, 0.1);
}

.skill-category h4 {
    font-family: 'Orbitron', sans-serif;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    font-size: 1.2rem;
}

.skill-category h4 i {
    margin-right: 10px;
    color: var(--accent);
}

.skill-item {
    display: flex;
    align-items: center;
    margin-bottom: 1.5rem;
}

.skill-name {
    min-width: 220px;
    font-family: 'Orbitron', sans-serif;
    font-size: 0.9rem;
}

.skill-bar {
    flex: 1;
    height: 10px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 5px;
    overflow: hidden;
    margin: 0 1rem;
}

body.light-theme .skill-bar {
    background: rgba(0, 0, 0, 0.1);
}

.skill-progress {
    height: 100%;
    background: var(--accent);
    border-radius: 5px;
    width: 0;
    transition: width 1.5s ease-in-out;
}

.skill-percentage {
    font-family: 'Orbitron', sans-serif;
    font-size: 0.9rem;
    min-width: 40px;
    text-align: right;
}

/* Certificates Section */
.certificates-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2rem;
}

.certificate-item {
    display: flex;
    background-color: rgba(255, 255, 255, 0.03);
    padding: 1.5rem;
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition);
}

body.light-theme .certificate-item {
    background-color: rgba(0, 0, 0, 0.03);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.certificate-item:hover {
    transform: translateY(-5px);
    border-color: rgba(255, 255, 255, 0.1);
}

.certificate-icon {
    font-size: 2rem;
    color: var(--accent);
    margin-right: 1.5rem;
    display: flex;
    align-items: center;
}

.certificate-details {
    flex: 1;
}

.certificate-details h4 {
    font-family: 'Orbitron', sans-serif;
    margin-bottom: 0.5rem;
}

.certificate-details p {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

.certificate-date {
    font-family: 'Orbitron', sans-serif;
    font-size: 0.8rem;
    color: var(--accent);
    display: block;
    margin-bottom: 1rem;
}

.view-certificate {
    padding: 0.5rem 1rem;
    background: var(--accent);
    color: var(--text-primary);
    border: none;
    border-radius: 4px;
    font-family: 'Orbitron', sans-serif;
    font-size: 0.8rem;
    cursor: pointer;
    transition: var(--transition);
}

.view-certificate:hover {
    background: var(--text-primary);
    color: var(--accent);
}

/* Courses Section */
.courses-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.course-item {
    background-color: rgba(255, 255, 255, 0.03);
    padding: 1.5rem;
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition);
}

body.light-theme .course-item {
    background-color: rgba(0, 0, 0, 0.03);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.course-item:hover {
    transform: translateY(-3px);
    border-color: rgba(255, 255, 255, 0.1);
}

.course-item h4 {
    font-family: 'Orbitron', sans-serif;
    margin-bottom: 0.5rem;
}

.course-item p {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

.course-provider {
    font-family: 'Orbitron', sans-serif;
    font-size: 0.8rem;
    color: var(--accent);
    font-weight: 600;
}

/* Internships, Hackathons, Experience Sections */
.internships-list,
.hackathons-list,
.experience-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.internship-item,
.hackathon-item,
.experience-item {
    background-color: rgba(255, 255, 255, 0.03);
    padding: 2rem;
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    text-align: center;
}

body.light-theme .internship-item,
body.light-theme .hackathon-item,
body.light-theme .experience-item {
    background-color: rgba(0, 0, 0, 0.03);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.internship-item h4,
.hackathon-item h4,
.experience-item h4 {
    font-family: 'Orbitron', sans-serif;
    margin-bottom: 1rem;
    color: var(--accent);
}

.internship-item p,
.hackathon-item p,
.experience-item p {
    color: var(--text-secondary);
}

/* Certificate Modal */
.certificate-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1001;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

body.light-theme .certificate-modal {
    background: rgba(255, 255, 255, 0.9);
}

.certificate-modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: var(--secondary-bg);
    width: 90%;
    max-width: 800px;
    max-height: 90vh;
    overflow-y: auto;
    border-radius: 10px;
    position: relative;
    padding: 2rem;
}

body.light-theme .modal-content {
    background: var(--primary-bg);
}

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    font-size: 2rem;
    color: var(--text-primary);
    cursor: pointer;
    transition: var(--transition);
}

.modal-close:hover {
    color: var(--accent);
}

.modal-header {
    margin-bottom: 2rem;
}

.modal-header h2 {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.8rem;
}

.certificate-img {
    width: 100%;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

/* Responsive Design for Mastery Page */
@media screen and (max-width: 968px) {
    .skills-container {
        grid-template-columns: 1fr;
    }
}

@media screen and (max-width: 768px) {
    .certificates-grid {
        grid-template-columns: 1fr;
    }
    
    .skill-item {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .skill-name {
        margin-bottom: 0.5rem;
        min-width: unset;
        width: 100%;
    }
    
    .skill-bar {
        width: 100%;
        margin: 0.5rem 0;
    }
    
    .certificate-item {
        flex-direction: column;
        text-align: center;
    }
    
    .certificate-icon {
        margin-right: 0;
        margin-bottom: 1rem;
        justify-content: center;
    }
    
    .modal-content {
        width: 95%;
        padding: 1.5rem;
    }
}