#page-loader {
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: var(--bg-color, #0a0e1a);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity .5s ease, visibility .5s ease;
}
#page-loader.hidden { opacity: 0; visibility: hidden; }

.loader-inner { display: flex; flex-direction: column; align-items: center; gap: 1.8rem; }

.loader-initials {
    font-size: 5rem;
    font-weight: 800;
    font-family: 'Space Grotesk', sans-serif;
    background: linear-gradient(135deg, #0ef, #a78bfa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: loaderPulse 1s ease-in-out infinite alternate;
}
@keyframes loaderPulse {
    from { transform: scale(1);    filter: drop-shadow(0 0 10px rgba(0,238,255,.4)); }
    to   { transform: scale(1.06); filter: drop-shadow(0 0 24px rgba(0,238,255,.8)); }
}

.loader-bar {
    width: 16rem;
    height: 4px;
    background: rgba(255,255,255,.1);
    border-radius: 10rem;
    overflow: hidden;
}
.loader-fill {
    height: 100%;
    width: 0;
    background: linear-gradient(90deg, #0ef, #a78bfa);
    border-radius: 10rem;
    animation: loaderFill 1.2s ease forwards;
}
@keyframes loaderFill { to { width: 100%; } }



.github-section {
    padding: 8rem 9% 5rem;
    background: var(--bg-color);
}
.github-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(32rem, 1fr));
    gap: 2rem;
    margin: 3rem 0 2.5rem;
}
.github-stat-card {
    background: var(--card-bg);
    border: 1px solid var(--border-subtle);
    border-radius: 1.6rem;
    padding: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: border-color .3s ease, box-shadow .3s ease;
}
.github-stat-card:hover {
    border-color: var(--main-color);
    box-shadow: 0 8px 28px var(--accent-glow-soft);
}
.github-img {
    width: 100%;
    max-width: 46rem;
    height: auto;
    border-radius: .8rem;
}
.github-contrib {
    background: var(--card-bg);
    border: 1px solid var(--border-subtle);
    border-radius: 1.6rem;
    padding: 2.4rem;
    text-align: center;
    transition: border-color .3s ease, box-shadow .3s ease;
}
.github-contrib:hover {
    border-color: var(--main-color);
    box-shadow: 0 8px 28px var(--accent-glow-soft);
}
.contrib-chart {
    width: 100%;
    max-width: 92rem;
    height: auto;
    border-radius: .6rem;
    filter: brightness(1.1) saturate(1.2);
}

@media (max-width:600px) {
    .github-section { padding: 6rem 5% 4rem; }
    .github-stats-grid { grid-template-columns: 1fr; }
}

/* ── Cert Carousel ── */
.cert-carousel-wrapper {
    overflow: hidden;
    padding: 1rem 0 2.5rem;
    position: relative;
    margin-bottom: 2rem;
}
.cert-carousel-wrapper::before,
.cert-carousel-wrapper::after {
    content: '';
    position: absolute;
    top: 0; bottom: 0;
    width: 8rem;
    z-index: 2;
    pointer-events: none;
}
.cert-carousel-wrapper::before { left: 0;  background: linear-gradient(to right, var(--bg-secondary), transparent); }
.cert-carousel-wrapper::after  { right: 0; background: linear-gradient(to left,  var(--bg-secondary), transparent); }

.cert-carousel {
    display: flex;
    gap: 1.8rem;
    width: max-content;
    animation: certScroll 22s linear infinite;
}
.cert-carousel:hover { animation-play-state: paused; }

@keyframes certScroll {
    from { transform: translateX(0); }
    to   { transform: translateX(-50%); }
}

.cert-slide {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: .8rem;
    cursor: default;
}
.cert-slide span {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--text-secondary);
    white-space: nowrap;
}

.cert-badge {
    --cb: #0ef;
    width: 7rem;
    height: 7rem;
    border-radius: 1.4rem;
    background: color-mix(in srgb, var(--cb) 12%, transparent);
    border: 1.5px solid color-mix(in srgb, var(--cb) 35%, transparent);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform .3s ease, box-shadow .3s ease;
}
.cert-badge:hover {
    transform: translateY(-4px) scale(1.06);
    box-shadow: 0 8px 24px color-mix(in srgb, var(--cb) 30%, transparent);
}
.cert-badge i {
    font-size: 2.8rem;
    color: var(--cb);
}

@supports not (background: color-mix(in srgb, red 50%, blue)) {
    .cert-badge { background: rgba(0,238,255,.1); border-color: rgba(0,238,255,.3); }
}