/* ===================================
   CERTIFICATES PAGE STYLES
   =================================== */

/* Container */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--space-3xl) var(--space-lg);
}

/* Header */
.header {
    text-align: center;
    margin-bottom: var(--space-3xl);
}

.header h1 {
    font-size: var(--font-size-5xl);
    font-weight: 900;
    margin-bottom: var(--space-md);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.header p {
    font-size: var(--font-size-xl);
    color: var(--color-text-secondary);
}

/* Certificates Grid */
.certificates-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: var(--space-xl);
    margin-bottom: var(--space-2xl);
}

/* Certificate Card */
.certificate-card {
    background: var(--color-bg-secondary);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    transition: all var(--transition-base);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--color-border);
}

.certificate-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-primary-light);
}

.certificate-icon {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-lg);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-2xl);
    color: white;
    margin-bottom: var(--space-lg);
}

.certificate-content {
    margin-bottom: var(--space-lg);
}

.certificate-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--space-md);
    color: var(--color-text-primary);
}

.certificate-org,
.certificate-count {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    margin-bottom: var(--space-sm);
}

.certificate-org i,
.certificate-count i {
    color: var(--color-primary);
}

.certificate-expand {
    width: 100%;
    padding: var(--space-md);
    background: var(--color-primary);
    color: white;
    border: none;
    border-radius: var(--radius-lg);
    font-size: var(--font-size-sm);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
}

.certificate-expand:hover {
    background: var(--color-primary-dark);
    transform: translateY(-2px);
}

.certificate-expand i {
    transition: transform var(--transition-base);
}

.certificate-card.expanded .certificate-expand i {
    transform: rotate(180deg);
}

/* Sub-Certificates */
.sub-certificates {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
    margin-top: var(--space-lg);
}

.certificate-card.expanded .sub-certificates {
    max-height: 1000px;
}

.sub-cert-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--space-sm);
    padding: var(--space-lg);
    background: var(--color-bg-primary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
}

.sub-cert-item {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    padding: var(--space-xs);
}

.sub-cert-item i {
    color: var(--color-primary);
    font-size: var(--font-size-xs);
}

/* Certificate Modal */
.cert-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    z-index: 10000;
    overflow: hidden;
}

.cert-modal-content {
    position: relative;
    width: 100%;
    height: 100%;
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    padding: var(--space-lg);
}

.cert-modal-close {
    position: absolute;
    top: var(--space-lg);
    right: var(--space-lg);
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: white;
    width: 50px;
    height: 50px;
    border-radius: var(--radius-full);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xl);
    transition: all var(--transition-base);
    z-index: 10001;
}

.cert-modal-close:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: rotate(90deg);
}

.cert-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-lg);
    padding: var(--space-md);
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
    flex-shrink: 0;
}

.cert-modal-album-nav {
    flex-shrink: 0;
}

.cert-modal-album-btn {
    padding: var(--space-sm) var(--space-lg);
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: white;
    border-radius: var(--radius-lg);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: var(--font-size-sm);
    font-weight: 600;
    transition: all var(--transition-base);
}

.cert-modal-album-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.cert-modal-album-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: white;
    text-align: center;
    flex: 1;
}

.cert-modal-body {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    flex: 1;
    overflow: hidden;
    min-height: 0;
}

.cert-modal-image {
    max-width: 95%;
    max-height: 95%;
    width: auto;
    height: auto;
    object-fit: contain;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
}

.cert-modal-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    justify-content: space-between;
    width: 100%;
    padding: 0 var(--space-md);
    pointer-events: none;
}

.cert-modal-nav-btn {
    background: rgba(255, 255, 255, 0.95);
    border: 2px solid var(--color-primary);
    color: var(--color-primary);
    width: 60px;
    height: 60px;
    border-radius: var(--radius-full);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-2xl);
    transition: all var(--transition-base);
    pointer-events: all;
    box-shadow: var(--shadow-lg);
}

.cert-modal-nav-btn:hover {
    background: var(--color-primary);
    color: white;
    transform: scale(1.1);
}

.cert-modal-footer {
    text-align: center;
    padding: var(--space-md) 0;
    border-top: 2px solid rgba(255, 255, 255, 0.1);
    flex-shrink: 0;
}

.cert-modal-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: white;
    margin-bottom: var(--space-xs);
}

.cert-modal-counter {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.7);
}

/* View All Button */
.mobile-view-all {
    display: none;
    width: 100%;
    padding: var(--space-lg);
    background: var(--color-primary);
    color: white;
    border: none;
    border-radius: var(--radius-xl);
    font-size: var(--font-size-lg);
    font-weight: 700;
    cursor: pointer;
    transition: all var(--transition-base);
    margin-top: var(--space-lg);
    box-shadow: var(--shadow-lg);
}

.mobile-view-all:hover {
    background: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

.mobile-view-all i {
    margin-left: var(--space-sm);
}

/* Show all certificates when expanded */
body.show-all-certs .certificate-card {
    display: block !important;
}

body.show-all-certs .mobile-view-all {
    display: none !important;
}

/* Responsive */
@media (max-width: 968px) {
    .certificates-grid {
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    }
}

@media (max-width: 768px) {
    .header h1 {
        font-size: var(--font-size-4xl);
    }

    .header p {
        font-size: var(--font-size-lg);
    }

    .container {
        padding: var(--space-xl) var(--space-md);
    }

    .certificates-grid {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
    }

    /* Show only first 3 certificates on mobile */
    .certificate-card:nth-child(n+4) {
        display: none !important;
    }

    /* Show view all button on mobile */
    .mobile-view-all {
        display: block !important;
    }

    .cert-modal {
        padding: 0;
    }

    .cert-modal-content {
        padding: var(--space-sm);
    }

    .cert-modal-close {
        width: 40px;
        height: 40px;
        top: var(--space-sm);
        right: var(--space-sm);
        font-size: var(--font-size-lg);
    }

    .cert-modal-header {
        flex-direction: column;
        gap: var(--space-sm);
        padding: var(--space-sm);
    }

    .cert-modal-album-title {
        font-size: var(--font-size-base);
        order: -1;
    }

    .cert-modal-album-btn {
        padding: var(--space-xs) var(--space-sm);
        font-size: var(--font-size-xs);
    }

    .cert-modal-nav-btn {
        width: 45px;
        height: 45px;
        font-size: var(--font-size-lg);
    }

    .cert-modal-title {
        font-size: var(--font-size-base);
    }

    .cert-modal-counter {
        font-size: var(--font-size-xs);
    }

    .cert-modal-footer {
        padding: var(--space-sm) 0;
    }

    .sub-cert-list {
        grid-template-columns: 1fr;
    }
}

/* Tablet: 3 certificates with view all button */
@media (min-width: 769px) and (max-width: 1024px) {
    /* Show only first 3 certificates */
    .certificate-card:nth-child(n+4) {
        display: none !important;
    }

    /* Show view all button */
    .mobile-view-all {
        display: block !important;
    }
}

/* Desktop: 8 certificates max, no button */
@media (min-width: 1025px) {
    /* Show only first 8 certificates */
    .certificate-card:nth-child(n+9) {
        display: none !important;
    }
}