/* Certificate Section Styling */
:root {
    --certificate-primary: var(--accent-color);
    --certificate-secondary: #6c63ff;
    --certificate-dark: #232323;
    --certificate-light: #f8f8f8;
    --certificate-border: rgba(255, 255, 255, 0.1);
    --certificate-hover: rgba(var(--accent-color-rgb), 0.1);
    --certificate-premium: linear-gradient(135deg, #ff9966, #ff5e62);
    --certificate-featured: linear-gradient(135deg, #4776E6, #8E54E9);
}

/* Certificate Categories Layout */
.certificates-categories {
    width: 100%;
    margin-top: 2rem;
}

/* Certificate Tabs */
.certificate-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 2rem;
    justify-content: center;
}

.cert-tab {
    padding: 0.75rem 1.5rem;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid var(--certificate-border);
    border-radius: 30px;
    color: #b3b3b3;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s ease;
    outline: none;
}

.cert-tab:hover {
    background: rgba(255, 255, 255, 0.12);
    transform: translateY(-2px);
}

.cert-tab.active {
    background: rgba(var(--accent-color-rgb), 0.15);
    color: var(--accent-color);
    border-color: rgba(var(--accent-color-rgb), 0.3);
    box-shadow: 0 5px 15px rgba(var(--accent-color-rgb), 0.1);
}

/* Certificate Section */
.certificates-section {
    margin-bottom: 3rem;
}

.certificate-section-title {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    color: #fff;
    font-size: 1.2rem;
}

.certificate-section-title i {
    color: var(--certificate-primary);
    font-size: 1.2rem;
}

/* Certificate Grid */
.certificates-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

/* Certificate Card */
.certificate-card {
    background: rgba(40, 40, 40, 0.5);
    border-radius: 12px;
    border: 1px solid var(--certificate-border);
    overflow: hidden;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.certificate-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
    border-color: rgba(var(--accent-color-rgb), 0.3);
    background: rgba(45, 45, 45, 0.6);
}

.certificate-card.premium {
    border-color: rgba(255, 153, 102, 0.3);
    background: rgba(45, 40, 40, 0.6);
}

.certificate-card.premium:hover {
    box-shadow: 0 10px 25px rgba(255, 94, 98, 0.15);
}

.certificate-card.featured {
    border-color: rgba(71, 118, 230, 0.3);
    background: rgba(40, 40, 50, 0.6);
}

.certificate-card.featured:hover {
    box-shadow: 0 10px 25px rgba(142, 84, 233, 0.15);
}

/* Certificate Card Header */
.certificate-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    background: rgba(30, 30, 30, 0.5);
    border-bottom: 1px solid var(--certificate-border);
}

.certificate-platform {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: #d8d8d8;
}

.certificate-platform i {
    font-size: 1.2rem;
    color: var(--certificate-primary);
}

.certificate-date {
    font-size: 0.8rem;
    color: #b3b3b3;
    padding: 0.25rem 0.75rem;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 15px;
}

/* Certificate Card Content */
.certificate-content {
    padding: 1.25rem 1rem;
    flex-grow: 1;
}

.certificate-content h4 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    color: white;
    line-height: 1.4;
}

.certificate-content p {
    font-size: 0.9rem;
    color: #b3b3b3;
    margin-bottom: 1rem;
}

.certificate-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
}

.certificate-type {
    font-size: 0.8rem;
    color: #a8a8a8;
    padding: 0.25rem 0.5rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 4px;
}

.skill-tag {
    font-size: 0.75rem;
    color: var(--certificate-primary);
    padding: 0.25rem 0.5rem;
    background: rgba(var(--accent-color-rgb), 0.1);
    border-radius: 4px;
    display: inline-flex;
    align-items: center;
}

/* Certificate Card Footer */
.certificate-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1rem;
    background: rgba(20, 20, 20, 0.4);
    border-top: 1px solid var(--certificate-border);
}

.credential-id {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8rem;
    color: #a8a8a8;
}

.credential-id i {
    color: #888;
}

.view-credential {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(var(--accent-color-rgb), 0.15);
    color: var(--certificate-primary);
    transition: all 0.3s ease;
}

.view-credential:hover {
    background: rgba(var(--accent-color-rgb), 0.25);
    transform: scale(1.1);
}

/* Premium and Featured Cards Special Styling */
.certificate-card.premium .certificate-platform i,
.certificate-card.featured .certificate-platform i {
    background: var(--certificate-premium);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.certificate-card.premium .view-credential {
    background: rgba(255, 94, 98, 0.15);
    color: #ff5e62;
}

.certificate-card.premium .view-credential:hover {
    background: rgba(255, 94, 98, 0.25);
}

.certificate-card.featured .certificate-platform i {
    background: var(--certificate-featured);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.certificate-card.featured .view-credential {
    background: rgba(71, 118, 230, 0.15);
    color: #4776E6;
}

.certificate-card.featured .view-credential:hover {
    background: rgba(71, 118, 230, 0.25);
}

/* Responsive Styles */
@media (max-width: 992px) {
    .certificates-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    }
}

@media (max-width: 768px) {
    .certificates-grid {
        grid-template-columns: repeat(auto-fill, minmax(100%, 1fr));
    }
    
    .cert-tab {
        padding: 0.5rem 1rem;
        font-size: 0.8rem;
    }
}

/* Animation for Certificate Cards */
@keyframes fadeInUp {
    0% {
        opacity: 0;
        transform: translateY(20px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

.certificate-card {
    animation: fadeInUp 0.5s ease-out forwards;
}

.certificate-card:nth-child(1) { animation-delay: 0.1s; }
.certificate-card:nth-child(2) { animation-delay: 0.2s; }
.certificate-card:nth-child(3) { animation-delay: 0.3s; }
.certificate-card:nth-child(4) { animation-delay: 0.4s; }
.certificate-card:nth-child(5) { animation-delay: 0.5s; }