/* ===============================
   CERTIFICATES TABS - GLASSMORPHISM
   =============================== */

.certificates-tabs {
    padding: 6rem 0;
    background: linear-gradient(180deg, #F0F4F8 0%, #ffffff 100%);
    position: relative;
    overflow: hidden;
}

.certificates-tabs__container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Header */
.certificates-tabs__header {
    text-align: center;
    margin-bottom: 3rem;
}

.certificates-tabs__badge {
    display: inline-block;
    background: linear-gradient(135deg, rgba(214, 32, 39, 0.15), rgba(214, 32, 39, 0.12));
    color: #D62027;
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(214, 32, 39, 0.3);
}

.certificates-tabs__header h2 {
    font-size: 2.5rem;
    color: #212529;
    margin-bottom: 1rem;
    font-weight: 700;
}

@media (max-width: 768px) {
    .certificates-tabs__header h2 {
        font-size: 1.8rem;
    }
}

.certificates-tabs__header p {
    font-size: 1.1rem;
    color: #495057;
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.6;
}

/* Tabs Navigation */
.certificates-tabs__nav {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 3rem;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(10px);
    border-radius: 16px;
    border: 1px solid rgba(214, 32, 39, 0.1);
}

@media (max-width: 768px) {
    .certificates-tabs__nav {
        gap: 0.5rem;
        padding: 0.75rem;
    }
}

.tab-button {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.875rem 1.5rem;
    background: rgba(255, 255, 255, 0.8);
    color: #495057;
    border: 1px solid rgba(214, 32, 39, 0.1);
    border-radius: 12px;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

@media (max-width: 768px) {
    .tab-button {
        padding: 0.75rem 1rem;
        font-size: 0.85rem;
    }
    
    .tab-button span {
        display: none;
    }
    
    .tab-button i {
        font-size: 1.1rem;
    }
}

.tab-button::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: #D62027;
    transition: width 0.3s ease;
}

.tab-button:hover {
    background: rgba(255, 255, 255, 1);
    color: #D62027;
    border-color: rgba(214, 32, 39, 0.3);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(214, 32, 39, 0.1);
}

.tab-button.active {
    background: linear-gradient(135deg, rgba(214, 32, 39, 0.15), rgba(214, 32, 39, 0.1));
    color: #D62027;
    border-color: rgba(214, 32, 39, 0.4);
    box-shadow: 0 4px 16px rgba(214, 32, 39, 0.2);
}

.tab-button.active::before {
    width: 100%;
}

.tab-button i {
    font-size: 1.1rem;
    transition: transform 0.3s ease;
}

.tab-button:hover i,
.tab-button.active i {
    color: #D62027;
    transform: scale(1.1);
}

/* Tab Content */
.certificates-tabs__content {
    position: relative;
    min-height: 500px;
}

.tab-panel {
    display: none;
    opacity: 0;
    animation: fadeInTab 0.5s ease forwards;
}

.tab-panel.active {
    display: block;
}

@keyframes fadeInTab {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Tab Panel Grid */
.tab-panel__grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 2rem;
    background: rgba(255, 255, 255, 0.75);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.6);
    border-radius: 24px;
    padding: 2.5rem;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.06);
}

@media (max-width: 992px) {
    .tab-panel__grid {
        grid-template-columns: 1fr;
        padding: 2rem;
    }
}

/* Main Content */
.tab-panel__main h3 {
    font-size: 2rem;
    color: #212529;
    margin-bottom: 1rem;
    font-weight: 700;
}

@media (max-width: 768px) {
    .tab-panel__main h3 {
        font-size: 1.5rem;
    }
}

.tab-panel__description {
    font-size: 1.1rem;
    color: #495057;
    line-height: 1.7;
    margin-bottom: 2rem;
}

/* Certificate Types (A1 vs A3) */
.tab-panel__types {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-top: 2rem;
}

@media (max-width: 768px) {
    .tab-panel__types {
        grid-template-columns: 1fr;
    }
}

.certificate-type {
    background: rgba(255, 255, 255, 0.8);
    border: 1px solid rgba(214, 32, 39, 0.15);
    border-radius: 16px;
    padding: 1.5rem;
    transition: all 0.3s ease;
}

.certificate-type:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(214, 32, 39, 0.12);
    border-color: rgba(214, 32, 39, 0.3);
}

.certificate-type--highlight {
    border-color: rgba(214, 32, 39, 0.3);
    background: rgba(214, 32, 39, 0.05);
}

.certificate-type__badge {
    display: inline-block;
    padding: 0.35rem 0.75rem;
    background: #D62027;
    color: #fff;
    border-radius: 8px;
    font-size: 0.8rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.certificate-type--highlight .certificate-type__badge {
    background: #D62027;
    color: #212529;
}

.certificate-type h4 {
    font-size: 1.2rem;
    color: #212529;
    margin-bottom: 1rem;
    font-weight: 600;
}

.certificate-type ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.certificate-type ul li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: #495057;
    font-size: 0.9rem;
    margin-bottom: 0.75rem;
}

.certificate-type ul li i {
    color: #D62027;
    font-size: 0.85rem;
}

/* Features Grid */
.tab-panel__features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-top: 2rem;
}

@media (max-width: 768px) {
    .tab-panel__features {
        grid-template-columns: 1fr;
    }
}

.feature-item {
    text-align: center;
    padding: 1.5rem;
    background: rgba(255, 255, 255, 0.8);
    border-radius: 12px;
    border: 1px solid rgba(214, 32, 39, 0.1);
    transition: all 0.3s ease;
}

.feature-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 6px 20px rgba(214, 32, 39, 0.1);
    border-color: rgba(214, 32, 39, 0.3);
}

.feature-item i {
    font-size: 2.5rem;
    color: #D62027;
    margin-bottom: 1rem;
}

.feature-item h4 {
    font-size: 1.1rem;
    color: #212529;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.feature-item p {
    color: #495057;
    font-size: 0.9rem;
    margin: 0;
}

/* Comparison Grid */
.tab-panel__comparison {
    margin-top: 2rem;
}

.tab-panel__comparison h4 {
    font-size: 1.3rem;
    color: #212529;
    margin-bottom: 1.5rem;
    font-weight: 600;
}

.comparison-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

@media (max-width: 768px) {
    .comparison-grid {
        grid-template-columns: 1fr;
    }
}

.comparison-item {
    display: flex;
    flex-direction: column;
    padding: 1.25rem;
    background: rgba(255, 255, 255, 0.8);
    border-radius: 12px;
    border: 1px solid rgba(214, 32, 39, 0.1);
}

.comparison-item strong {
    color: #D62027;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.comparison-item span {
    color: #212529;
    font-size: 1.1rem;
    font-weight: 600;
}

/* Sidebar */
.tab-panel__sidebar {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.tab-panel__box {
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid rgba(214, 32, 39, 0.1);
    border-radius: 16px;
    padding: 1.5rem;
}

.tab-panel__box h4 {
    font-size: 1.2rem;
    color: #212529;
    margin-bottom: 1rem;
    font-weight: 600;
}

.doc-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.doc-list li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: #495057;
    font-size: 0.9rem;
    margin-bottom: 0.75rem;
}

.doc-list li:last-child {
    margin-bottom: 0;
}

.doc-list li i {
    color: #D62027;
    font-size: 0.9rem;
}

/* CTA Box */
.tab-panel__box--cta {
    background: linear-gradient(135deg, rgba(214, 32, 39, 0.1), rgba(214, 32, 39, 0.08));
    border-color: rgba(214, 32, 39, 0.3);
}

.tab-panel__box--cta h4 {
    color: #D62027;
}

.tab-panel__box--cta p {
    color: #495057;
    font-size: 0.95rem;
    margin-bottom: 1.25rem;
}

.tab-cta-button {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    width: 100%;
    padding: 1rem 1.5rem;
    background: #D62027;
    color: #fff;
    text-decoration: none;
    border-radius: 12px;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
}

.tab-cta-button:hover {
    background: #D62027;
    color: #212529;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(214, 32, 39, 0.3);
}

.tab-cta-button i {
    transition: transform 0.3s ease;
}

.tab-cta-button:hover i {
    transform: translateX(4px);
}

/* Responsive */
@media (max-width: 768px) {
    .certificates-tabs {
        padding: 4rem 0;
    }
    
    .certificates-tabs__container {
        padding: 0 1.5rem;
    }
    
    .certificates-tabs__header {
        margin-bottom: 2rem;
    }
    
    .certificates-tabs__nav {
        margin-bottom: 2rem;
    }
    
    .tab-panel__grid {
        padding: 1.5rem;
    }
}