.case-studies-section {
    padding: 100px 0;
    background-color: var(--intro-bg);
    position: relative;
    overflow: hidden;
}
.dark-mode .case-studies-section {
    background: var(--dark-bg);
}

/* Enhanced Section Header */
.case-studies-header {
    text-align: center;
    margin-bottom: 60px;
    position: relative;
}

.case-studies-subtitle {
    display: inline-block;
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--text-color);
    margin-bottom: 15px;
    font-weight: 600;
    position: relative;
    padding-bottom: 10px;
}

.dark-mode .case-studies-subtitle {
    color: var(--dark-top-heading);
}

.case-studies-subtitle::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 2px;
    background: var(--color-primary);
}

.case-studies-title {
    font-size: 3rem;
    color: #2d3436;
    margin-bottom: 20px;
    font-weight: 700;
    position: relative;
    display: inline-block;
}

.case-studies-title::after {
    content: "";
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: linear-gradient(
        90deg,
        var(--color-primary),
        var(--color-primary-dark)
    );
    border-radius: 3px;
}

.case-studies-description {
    font-size: 1.2rem;
    color: #636e72;
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

/* Enhanced Filter Buttons */
.case-studies-filter {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 15px;
    margin-bottom: 40px;
    position: relative;
}

.case-studies-filter-btn {
    padding: 12px 30px;
    border: 2px solid #e9ecef;
    border-radius: 30px;
    background: transparent;
    color: #636e72;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.case-studies-filter-btn::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 0;
    height: 100%;
    background: var(--color-primary);
    transition: width 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: -1;
}

.case-studies-filter-btn:hover::before,
.case-studies-filter-btn.active::before {
    width: 100%;
}

.case-studies-filter-btn:hover,
.case-studies-filter-btn.active {
    color: white;
    border-color: var(--color-primary);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 123, 255, 0.2);
}

/* Enhanced Case Study Cards */
.case-studies-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    padding: 0 15px;
    max-width: 1400px;
    margin: 0 auto;
}

.case-studies-card {
    background: #fff;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    opacity: 1;
    transform: translateY(0);
    height: 100%;
    display: flex;
    flex-direction: column;
}
.dark-mode .case-studies-card {
    background: transparent;
    border: 1px solid gray;
}

.case-studies-card.case-studies-hidden {
    opacity: 0;
    transform: translateY(20px);
    pointer-events: none;
    position: absolute;
    visibility: hidden;
}

.case-studies-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.case-studies-image {
    position: relative;
    overflow: hidden;
    padding-top: 66.67%;
}

.case-studies-image img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    -o-object-fit: cover;
       object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.case-studies-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    opacity: 0;
    transition: opacity 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(3px);
}

.case-studies-card:hover .case-studies-overlay {
    opacity: 1;
}

.case-studies-overlay-content {
    text-align: center;
    color: white;
    transform: translateY(20px);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.case-studies-card:hover .case-studies-overlay-content {
    transform: translateY(0);
}

.case-studies-duration,
.case-studies-role {
    display: block;
    margin: 5px 0;
    font-size: 0.9rem;
    opacity: 0.9;
}

.case-studies-content {
    padding: 30px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.case-studies-card-description {
    flex: 1;
    margin-bottom: 25px;
}
.dark-mode .case-studies-card-description {
    color: var(--dark-top-desc);
}

.case-studies-tags {
    display: flex;
    gap: 10px;
    margin-bottom: 15px;
    flex-wrap: wrap;
    align-items: center;
}

.case-studies-tag {
    background: #f1f3f5;
    color: #495057;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    transition: all 0.3s ease;
    white-space: nowrap;
    max-width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
}

.case-studies-tag:hover {
    background: var(--color-primary);
    color: white;
    transform: translateY(-2px);
}

.case-studies-card-title {
    font-size: 1.8rem;
    color: #2d3436;
    margin-bottom: 15px;
    font-weight: 700;
    line-height: 1.3;
}
.dark-mode .case-studies-card-title {
    color: var(--dark-top-heading);
}

.case-studies-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 25px;
    padding: 20px 0;
    border-top: 1px solid #e9ecef;
    border-bottom: 1px solid #e9ecef;
}

.case-studies-stat {
    text-align: center;
    transition: transform 0.3s ease;
}

.case-studies-stat:hover {
    transform: translateY(-5px);
}

.case-studies-stat-number {
    display: block;
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 5px;
    background: linear-gradient(
        45deg,
        var(--color-primary),
        var(--color-primary-dark)
    );
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.case-studies-stat-label {
    font-size: 0.9rem;
    color: #636e72;
}

.case-studies-link {
    display: inline-flex;
    align-items: center;
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    padding: 8px 0;
}

.case-studies-link i {
    margin-left: 8px;
    transition: transform 0.3s ease;
}

.case-studies-link:hover {
    color: var(--color-primary-dark);
    transform: translateX(5px);
}

.case-studies-link:hover i {
    transform: translateX(5px);
}

/* Enhanced CTA Section */
.case-studies-cta {
    text-align: center;
    margin-top: 80px;
    padding: 60px 20px;
    background: linear-gradient(
        135deg,
        var(--color-primary),
        var(--color-primary-dark)
    );
    border-radius: 15px;
    color: white;
    position: relative;
    overflow: hidden;
}

.case-studies-cta::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M11 18c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm48 25c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm-43-7c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm63 31c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM34 90c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm56-76c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM12 86c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm28-65c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm23-11c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-6 60c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm29 22c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zM32 63c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm57-13c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-9-21c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM60 91c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM35 41c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM12 60c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2z' fill='%23ffffff' fill-opacity='0.1' fill-rule='evenodd'/%3E%3C/svg%3E");
    opacity: 0.1;
}

.case-studies-cta-title {
    font-size: 2.5rem;
    margin-bottom: 15px;
    position: relative;
}

.case-studies-cta-text {
    font-size: 1.2rem;
    margin-bottom: 30px;
    opacity: 0.9;
}

.case-studies-cta-button {
    display: inline-block;
    padding: 15px 40px;
    background: white;
    color: var(--color-primary);
    text-decoration: none;
    border-radius: 30px;
    font-weight: 600;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.case-studies-cta-button::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 0;
    height: 100%;
    background: var(--color-primary);
    transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: -1;
}

.case-studies-cta-button:hover {
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.case-studies-cta-button:hover::before {
    width: 100%;
}

/* Animation Classes */
.case-studies-transitioning {
    transition: all 0.3s ease-in-out;
}

.case-studies-animate-in {
    animation: case-studies-fadeIn 0.6s ease-out forwards;
}

@keyframes case-studies-fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive Design */
@media (max-width: 1200px) {
    .case-studies-grid {
        grid-template-columns: repeat(2, 1fr);
        max-width: 900px;
    }
}

@media (max-width: 768px) {
    .case-studies-section {
        padding: 60px 0;
    }

    .case-studies-title {
        font-size: 2rem;
    }

    .case-studies-filter {
        gap: 10px;
    }

    .case-studies-filter-btn {
        padding: 8px 20px;
        font-size: 0.9rem;
    }

    .case-studies-card-title {
        font-size: 1.5rem;
    }

    .case-studies-cta {
        margin-top: 40px;
        padding: 40px 20px;
    }

    .case-studies-cta-title {
        font-size: 2rem;
    }

    .case-studies-grid {
        grid-template-columns: 1fr;
        max-width: 500px;
    }
}

@media (max-width: 400px) {
    .case-studies-container {
        padding: 0;
    }

    .case-studies-grid {
        padding: 0 5px;
    }

    .case-studies-tags {
        gap: 6px;
        margin-bottom: 12px;
    }

    .case-studies-tag {
        padding: 4px 12px;
        font-size: 0.75rem;
        max-width: calc(50% - 3px);
    }
}

@media (max-width: 360px) {
    .case-studies-section {
        padding: 40px 0;
    }

    .case-studies-header {
        margin-bottom: 30px;
    }

    .case-studies-subtitle {
        font-size: 0.9rem;
        letter-spacing: 1px;
        margin-bottom: 10px;
    }

    .case-studies-title {
        font-size: 1.8rem;
        margin-bottom: 15px;
    }

    .case-studies-description {
        font-size: 1rem;
        line-height: 1.5;
    }

    .case-studies-filter {
        gap: 8px;
        margin-bottom: 25px;
    }

    .case-studies-filter-btn {
        padding: 6px 15px;
        font-size: 0.85rem;
    }

    .case-studies-card {
        border-radius: 12px;
    }

    .case-studies-content {
        padding: 20px;
    }

    .case-studies-card-title {
        font-size: 1.3rem;
        margin-bottom: 10px;
    }

    .case-studies-card-description {
        font-size: 0.9rem;
        line-height: 1.5;
        margin-bottom: 15px;
    }

    .case-studies-tags {
        gap: 4px;
        margin-bottom: 10px;
    }

    .case-studies-tag {
        padding: 3px 10px;
        font-size: 0.7rem;
        max-width: calc(50% - 2px);
    }

    .case-studies-stats {
        gap: 15px;
        margin-bottom: 15px;
        padding: 15px 0;
    }

    .case-studies-stat-number {
        font-size: 1.4rem;
    }

    .case-studies-stat-label {
        font-size: 0.8rem;
    }

    .case-studies-link {
        font-size: 0.9rem;
        padding: 6px 0;
    }
}

@media (max-width: 280px) {
    .case-studies-section {
        padding: 30px 0;
    }

    .case-studies-header {
        margin-bottom: 25px;
    }

    .case-studies-subtitle {
        font-size: 0.8rem;
        letter-spacing: 0.5px;
        padding-bottom: 5px;
    }

    .case-studies-subtitle::after {
        width: 30px;
        height: 1px;
    }

    .case-studies-title {
        font-size: 1.5rem;
        margin-bottom: 10px;
    }

    .case-studies-title::after {
        width: 50px;
        height: 2px;
        bottom: -5px;
    }

    .case-studies-description {
        font-size: 0.9rem;
        line-height: 1.4;
    }

    .case-studies-filter {
        gap: 5px;
        margin-bottom: 20px;
    }

    .case-studies-filter-btn {
        padding: 4px 12px;
        font-size: 0.75rem;
        border-width: 1px;
    }

    .case-studies-card {
        border-radius: 10px;
    }

    .case-studies-content {
        padding: 15px;
    }

    .case-studies-card-title {
        font-size: 1.1rem;
        margin-bottom: 8px;
    }

    .case-studies-card-description {
        font-size: 0.8rem;
        line-height: 1.4;
        margin-bottom: 12px;
    }

    .case-studies-tags {
        gap: 3px;
        margin-bottom: 8px;
    }

    .case-studies-tag {
        padding: 2px 8px;
        font-size: 0.65rem;
        max-width: calc(50% - 1.5px);
        border-radius: 12px;
    }

    .case-studies-stats {
        gap: 10px;
        margin-bottom: 12px;
        padding: 12px 0;
    }

    .case-studies-stat-number {
        font-size: 1.2rem;
        margin-bottom: 3px;
    }

    .case-studies-stat-label {
        font-size: 0.75rem;
    }

    .case-studies-link {
        font-size: 0.8rem;
        padding: 4px 0;
    }

    .case-studies-cta {
        margin-top: 30px;
        padding: 25px 15px;
        border-radius: 10px;
    }

    .case-studies-cta-title {
        font-size: 1.4rem;
        margin-bottom: 10px;
    }

    .case-studies-cta-text {
        font-size: 0.9rem;
        margin-bottom: 20px;
    }

    .case-studies-cta-button {
        padding: 10px 25px;
        font-size: 0.9rem;
        border-radius: 20px;
    }
}