/* Start Projects Section */
.projects {
    padding-top: var(--main-padding-top);
    padding-bottom: var(--main-padding-bottom);
    background-color: var(--color-surface);
}

.projects .projects-filter {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 15px;
    margin-bottom: 50px;
    flex-wrap: wrap;
}

.projects .projects-filter button {
    position: relative;
    padding: 10px 22px;
    border: 1px solid var(--color-primary);
    border-radius: 8px;
    background-color: transparent;
    color: var(--color-text-muted);
    font-family: inherit;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition-duration: var(--transition-duration);
    overflow: hidden;
    z-index: 1;
}

.projects .projects-filter button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background-color: var(--color-primary);
    transition-duration: var(--transition-duration);
    z-index: -1;
}

.projects .projects-filter button:hover::before,
.projects .projects-filter button.active::before {
    left: 0;
}

.projects .projects-filter button:hover,
.projects .projects-filter button.active {
    color: var(--color-white);
}

.projects .projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 50px;
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.projects .projects-grid.filtering {
    opacity: 0;
    transform: translateY(10px);
}

.projects .project-card {
    perspective: 1000px;
    background-color: var(--color-bg);
    border-radius: 10px;
    border: 2px solid rgba(139, 187, 146, 0.15);
}

.projects .project-card {
    transition: transform var(--transition-duration) ease,
        border-color var(--transition-duration) ease,
        box-shadow var(--transition-duration) ease;
}

.projects .project-card:hover {
    transform: translateY(-8px);
    border-color: var(--color-primary);
    box-shadow: 0 15px 30px rgba(42, 131, 95, 0.2);
}

.projects .project-card-inner {
    position: relative;
    width: 100%;
    height: 520px;
    transform-style: preserve-3d;
    transition-duration: var(--transition-duration);
}

.projects .project-card-front,
.projects .project-card-back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    border-radius: 10px;
    overflow: hidden;
}

.projects .project-card-back {
    transform: rotateY(180deg);
}

.projects .project-card.flipped .project-card-inner {
    transform: rotateY(180deg);
}

.projects .project-card-front {
    display: flex;
    flex-direction: column;
    background-color: var(--color-bg);
    padding: 10px;
}

.projects .project-card-front img {
    max-width: 100%;
    object-fit: cover;
    display: block;
    border-radius: 10px;
}

.projects .project-card-front .project-overlay {
    padding: 20px;
    text-align: center;
}

.projects .project-card-front .project-overlay h3 {
    color: var(--color-white);
    font-size: 25px;
    margin-bottom: 10px;
}

.projects .project-card-front .project-overlay p {
    color: var(--color-text-muted);
    font-size: 14px;
    line-height: var(--line-height);
}

.projects .project-card-front .project-meta {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
}

.projects .project-card-front .project-type {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    color: var(--color-accent);
    font-size: 13px;
}

.projects .project-card-front .project-type i {
    color: var(--color-primary);
    font-size: 18px;
}

.projects .project-card-front .project-track {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    flex-wrap: wrap;
    gap: 10px;
}

.projects .project-card-front .project-track i {
    color: var(--color-primary);
    font-size: 18px;
    margin-right: 2px;
}

.projects .project-card-front .project-track span {
    padding: 4px 9px;
    border: 1px solid rgba(139, 187, 146, 0.4);
    border-radius: 15px;
    color: var(--color-text-muted);
    font-size: 11px;
    transition: 
        background-color var(--transition-duration) ease,
        color var(--transition-duration) ease,
        border-color var(--transition-duration) ease;
}

.projects .project-card:hover .project-track .track span {
    border-color: var(--color-primary);
    color: var(--color-accent);
}

.projects .project-card-front .flip-btn {
    align-self: center;
    margin-bottom: 20px;
    padding: 10px 20px;
    border: 2px solid var(--color-primary);
    border-radius: 6px;
    background-color: transparent;
    color: var(--color-accent);
    font-family: inherit;
    font-size: 15px;
    cursor: pointer;
    transition-duration: var(--transition-duration);
    margin-top: auto;
}

.projects .project-card-front .flip-btn i {
    margin-left: 8px;
    transition-duration: var(--transition-duration);
}

.projects .project-card-front .flip-btn:hover {
    background-color: var(--color-primary);
    color: var(--color-white);
}

.projects .project-card-front .flip-btn:hover i {
    transform: translateX(5px);
}

.projects .project-card-back {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 25px;
    background-color: var(--color-bg);
    text-align: center;
}

.projects .project-card-back h3 {
    color: var(--color-white);
    font-size: 26px;
    margin-bottom: 12px;
}

.projects .project-card-back>p {
    color: var(--color-text-muted);
    font-size: 14px;
    line-height: 1.6;
    margin-bottom: 15px;
}

.projects .project-card-back .project-contribution {
    width: 100%;
    padding: 12px 15px;
    border-left: 3px solid var(--color-primary);
    background-color: var(--color-surface);
    text-align: left;
    margin-bottom: 15px;
}

.projects .project-card-back .project-contribution h4 {
    color: var(--color-accent);
    font-size: 15px;
    margin-bottom: 5px;
}

.projects .project-card-back .project-contribution p {
    color: var(--color-text-muted);
    font-size: 13px;
    line-height: 1.5;
}

.projects .project-card-back .project-tech {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 15px;
}

.projects .project-card-back .project-tech span {
    padding: 4px 9px;
    border: 1px solid var(--color-primary);
    border-radius: 15px;
    color: var(--color-accent);
    font-size: 11px;
}

.projects .project-card-back .project-links {
    display: flex;
    gap: 10px;
    margin-bottom: auto;
}

.projects .project-card-back .project-links a {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 7px 12px;
    border: 1px solid var(--color-primary);
    border-radius: 6px;
    color: var(--color-accent);
    font-size: 13px;
    transition-duration: var(--transition-duration);
}

.projects .project-card-back .project-links a:hover {
    background-color: var(--color-primary);
    color: var(--color-white);
}

.projects .project-card-back .back-btn {
    margin-top: 15px;
}

.projects .project-card-back .flip-btn {
    padding: 10px 20px;
    border: 2px solid var(--color-primary);
    border-radius: 6px;
    background-color: transparent;
    color: var(--color-accent);
    font-family: inherit;
    font-size: 15px;
    cursor: pointer;
    transition-duration: var(--transition-duration);
}

.projects .project-card-back .flip-btn i {
    margin-right: 8px;
    transition-duration: var(--transition-duration);
}

.projects .project-card-back .flip-btn:hover {
    background-color: var(--color-primary);
    color: var(--color-white);
}

.projects .project-card-back .flip-btn:hover i {
    transform: translateX(-5px);
}
/* End Projects Section */