/* ================ ACHIEVEMENTS SECTION STYLING ================ */
#achievements {
    padding: 100px 0;
    position: relative;
    background: linear-gradient(135deg, rgba(10, 10, 20, 0.97), rgba(15, 15, 25, 0.98));
    overflow: hidden;
    color: #fff;
}

#achievements-particles {
    width: 100%;
    height: 100%;
    position: absolute;
    z-index: 0;
}

.section-subtitle {
    color: rgba(255, 255, 255, 0.7);
    margin-top: 15px;
    font-size: 1.1rem;
    font-weight: 300;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Achievements Container */
.achievements-container {
    position: relative;
    z-index: 2;
}

/* Achievements Grid Layout */
.achievements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
    transition: all 0.5s ease;
}

.achievements-grid.viewer-active {
    opacity: 0.3;
    pointer-events: none;
    filter: blur(2px);
}

/* Achievement Card Design */
.achievement-card {
    background: rgba(25, 25, 45, 0.6);
    border-radius: 20px;
    padding: 0;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    transition: all 0.4s ease;
    border: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    position: relative;
}

.achievement-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
    border-color: rgba(86, 165, 250, 0.3);
}

.achievement-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #56a5fa, #667eea, #764ba2);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.achievement-card:hover::before {
    opacity: 1;
}

/* Achievement Image Container */
.achievement-image-container {
    position: relative;
    height: 200px;
    overflow: hidden;
    background: rgba(255, 255, 255, 0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}

.achievement-image {
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: 20px;
    filter: brightness(1.1) contrast(1.1);
    transition: all 0.3s ease;
    image-rendering: auto;
}

.achievement-card:hover .achievement-image {
    transform: scale(1.05);
}

/* Image Overlay */
.image-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: all 0.3s ease;
    color: white;
    font-size: 1.2rem;
    font-weight: 600;
}

.image-overlay i {
    font-size: 2rem;
    margin-bottom: 10px;
    color: #56a5fa;
}

.image-overlay span {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.achievement-image-container:hover .image-overlay {
    opacity: 1;
}

.achievement-badge {
    position: absolute;
    top: 15px;
    right: 15px;
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #56a5fa, #667eea);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
    box-shadow: 0 4px 15px rgba(86, 165, 250, 0.4);
    animation: pulse 2s infinite;
    z-index: 10;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

/* Achievement Content */
.achievement-content {
    padding: 25px;
}

.achievement-title {
    font-size: 1.4rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 8px;
    line-height: 1.3;
}

.achievement-provider {
    color: rgba(86, 165, 250, 0.9);
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: 5px;
}

.achievement-date {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
    margin-bottom: 15px;
}

/* Skill Tags */
.achievement-skills {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
}

.skill-tag {
    background: rgba(86, 165, 250, 0.2);
    color: rgba(86, 165, 250, 0.9);
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
    border: 1px solid rgba(86, 165, 250, 0.3);
    transition: all 0.3s ease;
}

.achievement-card:hover .skill-tag {
    background: rgba(86, 165, 250, 0.3);
    color: #fff;
}

/* Verify Button */
.verify-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, #56a5fa, #667eea);
    color: white;
    padding: 12px 20px;
    border-radius: 10px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(86, 165, 250, 0.3);
    border: none;
    cursor: pointer;
    width: 100%;
    justify-content: center;
}

.verify-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(86, 165, 250, 0.4);
    color: white;
    text-decoration: none;
}

.verify-btn i {
    font-size: 0.8rem;
}

/* ================ CERTIFICATE VIEWER STYLING ================ */
.certificate-viewer {
    background: rgba(20, 20, 35, 0.95);
    border-radius: 25px;
    margin: 40px 0;
    padding: 0;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
    border: 1px solid rgba(86, 165, 250, 0.3);
    overflow: hidden;
    transform: translateY(50px);
    opacity: 0;
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    backdrop-filter: blur(20px);
}

.certificate-viewer.active {
    transform: translateY(0);
    opacity: 1;
}

/* Viewer Header */
.viewer-header {
    background: linear-gradient(135deg, rgba(86, 165, 250, 0.2), rgba(102, 126, 234, 0.2));
    padding: 25px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.viewer-title h3 {
    color: #fff;
    font-size: 1.8rem;
    font-weight: 700;
    margin: 0 0 5px 0;
}

.viewer-title p {
    color: rgba(255, 255, 255, 0.7);
    margin: 0;
    font-size: 0.9rem;
}

.viewer-close {
    background: rgba(255, 255, 255, 0.1);
    border: none;
    color: white;
    width: 45px;
    height: 45px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 1.2rem;
}

.viewer-close:hover {
    background: rgba(255, 100, 100, 0.3);
    transform: scale(1.1);
}

/* Viewer Content */
.viewer-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 40px;
    padding: 40px;
}

/* Image Section */
.viewer-image-section {
    position: relative;
}

.image-container {
    position: relative;
    background: rgba(255, 255, 255, 0.98);
    border-radius: 15px;
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    overflow: hidden;
}

.viewer-certificate-image {
    width: 100%;
    height: auto;
    max-height: 600px;
    object-fit: contain;
    border-radius: 10px;
    transition: transform 0.3s ease;
    image-rendering: auto;
    cursor: grab;
}

.viewer-certificate-image:active {
    cursor: grabbing;
}

/* Image Controls */
.image-controls {
    position: absolute;
    bottom: 20px;
    right: 20px;
    display: flex;
    gap: 10px;
    background: rgba(0, 0, 0, 0.8);
    padding: 10px;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.control-btn {
    width: 45px;
    height: 45px;
    background: rgba(86, 165, 250, 0.9);
    border: none;
    border-radius: 8px;
    color: white;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
}

.control-btn:hover {
    background: rgba(86, 165, 250, 1);
    transform: scale(1.1);
    box-shadow: 0 4px 15px rgba(86, 165, 250, 0.4);
}

.control-btn:active {
    transform: scale(0.95);
}

/* Info Section */
.viewer-info-section {
    background: rgba(25, 25, 45, 0.6);
    border-radius: 15px;
    padding: 30px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.certificate-details {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.detail-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    padding: 20px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

.detail-item:hover {
    background: rgba(255, 255, 255, 0.08);
    transform: translateY(-2px);
}

.detail-icon {
    color: #56a5fa;
    font-size: 1.5rem;
    margin-top: 5px;
    min-width: 24px;
}

.detail-content {
    flex: 1;
}

.detail-content h4 {
    color: #fff;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 0 8px 0;
    line-height: 1.3;
}

.detail-content h5 {
    color: rgba(86, 165, 250, 0.9);
    font-size: 1rem;
    font-weight: 600;
    margin: 0 0 8px 0;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.detail-content p {
    color: rgba(255, 255, 255, 0.8);
    margin: 0;
    font-size: 1.1rem;
    line-height: 1.5;
}

/* Viewer Skills */
.viewer-skills {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 10px;
}

.viewer-skills .skill-tag {
    background: rgba(86, 165, 250, 0.3);
    color: #fff;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
    border: 1px solid rgba(86, 165, 250, 0.5);
    transition: all 0.3s ease;
}

.viewer-skills .skill-tag:hover {
    background: rgba(86, 165, 250, 0.5);
    transform: translateY(-2px);
}

/* Viewer Verify Button */
.viewer-verify-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: linear-gradient(135deg, #56a5fa, #667eea);
    color: white;
    padding: 15px 25px;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s ease;
    box-shadow: 0 6px 25px rgba(86, 165, 250, 0.3);
    margin-top: 10px;
}

.viewer-verify-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(86, 165, 250, 0.4);
    color: white;
    text-decoration: none;
    background: linear-gradient(135deg, #667eea, #764ba2);
}

/* Achievements Statistics */
.achievements-stats {
    display: flex;
    justify-content: center;
    gap: 50px;
    padding: 40px;
    background: rgba(25, 25, 45, 0.4);
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: #56a5fa;
    line-height: 1;
    margin-bottom: 5px;
    background: linear-gradient(135deg, #56a5fa, #667eea);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    color: rgba(255, 255, 255, 0.8);
    font-size: 1rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Responsive Design */
@media (max-width: 1200px) {
    .achievements-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 25px;
    }

    .viewer-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
}

@media (max-width: 992px) {
    #achievements {
        padding: 80px 0;
    }

    .achievements-grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 20px;
    }

    .achievements-stats {
        gap: 30px;
        padding: 30px;
    }

    .stat-number {
        font-size: 2rem;
    }

    .viewer-content {
        padding: 25px;
        gap: 25px;
    }

    .viewer-header {
        padding: 20px 25px;
    }
}

@media (max-width: 768px) {
    .cosmic-title {
        font-size: 2.2rem;
    }

    .achievements-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .achievement-content {
        padding: 20px;
    }

    .achievement-title {
        font-size: 1.2rem;
    }

    .achievements-stats {
        flex-direction: column;
        gap: 20px;
        padding: 25px;
    }

    .stat-number {
        font-size: 1.8rem;
    }

    .stat-label {
        font-size: 0.9rem;
    }

    .viewer-content {
        padding: 20px;
        gap: 20px;
    }

    .viewer-header {
        padding: 15px 20px;
    }

    .viewer-title h3 {
        font-size: 1.5rem;
    }

    .certificate-details {
        gap: 20px;
    }

    .detail-item {
        padding: 15px;
    }

    .image-container {
        padding: 20px;
    }
}

@media (max-width: 576px) {
    .achievement-image-container {
        height: 160px;
    }

    .achievement-badge {
        width: 35px;
        height: 35px;
        font-size: 1rem;
    }

    .verify-btn {
        padding: 10px 16px;
        font-size: 0.85rem;
    }

    .skill-tag {
        font-size: 0.75rem;
        padding: 4px 10px;
    }

    .viewer-content {
        padding: 15px;
    }

    .detail-item {
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: 10px;
    }

    .image-controls {
        bottom: 10px;
        right: 10px;
        gap: 5px;
    }

    .control-btn {
        width: 40px;
        height: 40px;
        font-size: 0.9rem;
    }
}

/* Smooth animations */
@keyframes slideInUp {
    from {
        transform: translateY(50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.certificate-viewer.active {
    animation: slideInUp 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}