.skills {
    background: var(--bg-secondary);
    padding: 8rem 9% 5rem;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    overflow: hidden;
}


.skill-card[data-category="languages"] { --card-color:#a78bfa; --card-glow:rgba(167,139,250,.22); }
.skill-card[data-category="tools"]     { --card-color:#fb923c; --card-glow:rgba(251,146, 60,.22); }
.skill-card[data-category="libraries"] { --card-color:#0ef;    --card-glow:rgba(  0,238,255,.22); }
.skill-card[data-category="soft"]      { --card-color:#34d399; --card-glow:rgba( 52,211,153,.22); }

.skill-tabs {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: .8rem;
    margin: 2.4rem 0 3.2rem;
}
.skill-tab-btn {
    background: var(--card-bg);
    color: var(--text-secondary);
    border: 1px solid var(--border-subtle);
    padding: .75rem 1.8rem;
    border-radius: 10rem;
    font-size: 1.35rem;
    font-family: 'Poppins', sans-serif;
    font-weight: 500;
    cursor: pointer;
    transition: all .28s ease;
    display: flex;
    align-items: center;
    gap: .6rem;
}
.skill-tab-btn:hover { border-color: var(--border-color); color: var(--text-color); background: var(--card-hover-bg); }

.skill-tab-btn[data-filter="all"].active       { background:linear-gradient(135deg,#0ef,#00a0cc);   color:#fff; border-color:transparent; box-shadow:0 4px 18px rgba(0,238,255,.30); }
.skill-tab-btn[data-filter="languages"].active { background:linear-gradient(135deg,#a78bfa,#7c3aed); color:#fff; border-color:transparent; box-shadow:0 4px 18px rgba(167,139,250,.35); }
.skill-tab-btn[data-filter="tools"].active     { background:linear-gradient(135deg,#fb923c,#ea580c); color:#fff; border-color:transparent; box-shadow:0 4px 18px rgba(251,146,60,.35); }
.skill-tab-btn[data-filter="libraries"].active { background:linear-gradient(135deg,#0ef,#00a0cc);   color:#fff; border-color:transparent; box-shadow:0 4px 18px rgba(0,238,255,.30); }
.skill-tab-btn[data-filter="soft"].active      { background:linear-gradient(135deg,#34d399,#059669); color:#fff; border-color:transparent; box-shadow:0 4px 18px rgba(52,211,153,.35); }

.tab-count {
    background: rgba(255,255,255,.22);
    border-radius: 10rem;
    padding: .05rem .65rem;
    font-size: 1.1rem;
    font-weight: 700;
    min-width: 2.2rem;
    text-align: center;
    display: inline-block;
    line-height: 1.7;
    transition: background .28s ease;
}
.skill-tab-btn:not(.active) .tab-count { background:var(--accent-glow-soft); color:var(--main-color); border:1px solid var(--border-color); }

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(14rem,1fr));
    gap: 1.4rem;
    margin-bottom: 4.5rem;
}

@keyframes skillCardIn {
    from { opacity:0; transform:translateY(24px) scale(.94); }
    to   { opacity:1; transform:translateY(0)    scale(1);   }
}
.skill-card {
    animation: skillCardIn .42s cubic-bezier(.22,1,.36,1) both;
    animation-play-state: paused;
    animation-delay: calc(var(--stagger-i,0) * .055s);
}
.skills-grid.in-view .skill-card:not(.hidden) { animation-play-state: running; }

.skill-card {
    background: var(--card-bg);
    border: 1px solid var(--border-subtle);
    border-radius: 1.6rem;
    padding: 2.2rem 1.4rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.1rem;
    cursor: default;
    position: relative;
    overflow: hidden;
    transition: transform .3s ease, border-color .3s ease, box-shadow .3s ease, background .3s ease;
}
.skill-card.hidden { display: none; }

.skill-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 3px;
    background: linear-gradient(90deg, var(--card-color,var(--main-color)), transparent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform .35s ease;
    border-radius: 0 0 3px 3px;
}
.skill-card:hover::before { transform: scaleX(1); }
.skill-card:hover {
    transform: translateY(-7px);
    border-color: var(--card-color, var(--border-color));
    box-shadow: 0 12px 36px var(--card-glow, var(--accent-glow-medium));
    background: var(--card-hover-bg);
}

.skill-icon-wrap {
    width: 5.6rem; height: 5.6rem;
    background: var(--accent-glow-soft);
    border: 1px solid var(--border-color);
    border-radius: 1.4rem;
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
    transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
}
.skill-card:hover .skill-icon-wrap {
    transform: scale(1.1) rotate(-4deg);
    box-shadow: 0 6px 22px var(--card-glow, var(--accent-glow));
    border-color: var(--card-color, var(--border-color));
}
.skill-icon-wrap img { width:3.2rem; height:3.2rem; object-fit:contain; }
.skill-icon-wrap i   { font-size:2.8rem; color:var(--card-color, var(--main-color)); }

.skill-name {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-color);
    font-family: 'Space Grotesk', sans-serif;
    text-align: center;
    line-height: 1.3;
    transition: color .3s ease;
}
.skill-card:hover .skill-name { color: var(--card-color, var(--main-color)); }

.skills-marquee-wrapper {
    overflow: hidden;
    padding: 1.5rem 0;
    border-top: 1px solid var(--border-subtle);
    border-bottom: 1px solid var(--border-subtle);
    position: relative;
}
.skills-marquee-wrapper::before,
.skills-marquee-wrapper::after {
    content: '';
    position: absolute;
    top: 0; bottom: 0;
    width: 10rem;
    z-index: 2;
    pointer-events: none;
}
.skills-marquee-wrapper::before { left:0;  background:linear-gradient(to right, var(--bg-secondary), transparent); }
.skills-marquee-wrapper::after  { right:0; background:linear-gradient(to left,  var(--bg-secondary), transparent); }

.skills-marquee-track {
    display: flex;
    gap: 2rem;
    width: max-content;
    animation: marqueeScroll 28s linear infinite;
}
.skills-marquee-track:hover { animation-play-state: paused; }

@keyframes marqueeScroll {
    from { transform: translateX(0); }
    to   { transform: translateX(-50%); }
}
.marquee-item {
    display: flex;
    align-items: center;
    gap: .8rem;
    background: var(--card-bg);
    border: 1px solid var(--border-subtle);
    border-radius: 10rem;
    padding: .7rem 1.6rem;
    white-space: nowrap;
    font-size: 1.3rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: all .25s ease;
}
.marquee-item:hover { border-color:var(--main-color); color:var(--text-color); box-shadow:0 0 12px var(--accent-glow-soft); }
.marquee-item img   { width:2rem; height:2rem; object-fit:contain; }
.marquee-item i     { font-size:1.8rem; color:var(--main-color); }

@media (max-width:1024px) { .skills-grid { grid-template-columns:repeat(auto-fill,minmax(13rem,1fr)); gap:1.2rem; } }
@media (max-width:600px) {
    .skills { padding:8rem 5% 4rem; }
    .skills-grid { grid-template-columns:repeat(auto-fill,minmax(11rem,1fr)); gap:1rem; }
    .skill-tab-btn { font-size:1.2rem; padding:.65rem 1.4rem; }
    .skill-card { padding:1.8rem 1rem; }
}