/* Features: Infinite Keyframe Scroll, CSS Variables for Hover Colors */

.tech-stack-section {
    padding: 80px 0;
    background-color: #050505;
    color: #ffffff;
    overflow: hidden;
    border-top: 1px solid #1a1a1a;
    border-bottom: 1px solid #1a1a1a;
}
.tech-stack-header {
    text-align: center;
    margin-bottom: 50px;
    padding: 0 20px;
}
.tech-stack-header h2 {
    font-size: 2.5rem;
    margin-bottom: 10px;
    color: #ffffff;
}
.tech-stack-header p {
    color: #aaaaaa;
    font-size: 1.1rem;
}
.marquee-container {
    width: 100%;
    overflow: hidden;
    position: relative;
    display: flex;
    align-items: center;
}
.marquee-container::before,
.marquee-container::after {
    content: '';
    position: absolute;
    top: 0;
    width: 150px;
    height: 100%;
    z-index: 2;
}
.marquee-container::before {
    left: 0;
    background: linear-gradient(to right, #050505 0%, transparent 100%);
}
.marquee-container::after {
    right: 0;
    background: linear-gradient(to left, #050505 0%, transparent 100%);
}
.marquee-track {
    display: flex;
    gap: 40px;
    width: max-content;
    animation: scrollMarquee 30s linear infinite;
}
.marquee-track:hover {
    animation-play-state: paused;
}
.tech-item {
    display: flex;
    align-items: center;
    gap: 12px;
    background-color: #111111;
    padding: 15px 30px;
    border-radius: 50px;
    border: 1px solid #222222;
    cursor: pointer;
    transition: all 0.4s ease;
    filter: grayscale(100%);
    opacity: 0.7;
}
.tech-item:hover {
    filter: grayscale(0%);
    opacity: 1;
    transform: translateY(-5px);
    border-color: var(--hover-color);
    box-shadow: 0 10px 20px rgba(0,0,0,0.5);
}
.tech-item i {
    font-size: 1.8rem;
    transition: color 0.4s ease;
}
.tech-item:hover i {
    color: var(--hover-color);
}
.tech-item span {
    font-size: 1.1rem;
    font-weight: bold;
    color: #cccccc;
    transition: color 0.4s ease;
}
.tech-item:hover span {
    color: #ffffff;
}
@keyframes scrollMarquee {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}
@media (max-width: 768px) {
    .tech-stack-header h2 { font-size: 2rem; }
    .tech-item { padding: 12px 20px; }
    .tech-item i { font-size: 1.5rem; }
    .tech-item span { font-size: 1rem; }
}