/* ===== PORTFOLIO PAGE ===== */
.portfolio-page {
    min-height: 100vh;
    background: var(--bg);
}

/* Portfolio Hero */
.portfolio-hero {
    padding: clamp(80px, 12vw, 140px) 0 clamp(40px, 6vw, 60px);
    background: var(--bg);
    text-align: center;
    position: relative;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.portfolio-hero .container {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.portfolio-hero__title {
    font-size: clamp(42px, 8vw, 72px);
    font-weight: 800;
    color: var(--paper);
    margin: 0 0 20px 0;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.portfolio-hero__intro {
    max-width: 700px;
    margin: 0 auto;
    color: var(--muted);
    font-size: clamp(16px, 1.2vw, 18px);
    line-height: 1.7;
    padding-bottom: 30px;
}
.profile {
    width: 130px;
    border-radius: 100%;
    overflow: hidden;
    position: absolute;
    top: 80%;
}
/* Loading spinner */
.portfolio-loading {
    text-align: center;
    padding: 80px 20px;
    color: var(--muted);
}

.spinner {
    width: 40px;
    height: 40px;
    margin: 0 auto 20px;
    border: 3px solid rgba(255, 255, 255, 0.1);
    border-top-color: var(--paper);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ===== PORTFOLIO GALLERY SECTION ===== */
.portfolio-section {
    padding: clamp(80px, 25vw, 120px) 0;
    background: linear-gradient(180deg, var(--bg) 0%, var(--panel) 100%);
}

/* Category filter */
.portfolio-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
    margin-bottom: 48px;
}

.filter-btn {
    padding: 10px 20px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--paper);
    cursor: pointer;
    font-weight: 500;
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: all 0.3s ease;
    border-radius: 4px;
}

.filter-btn:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.filter-btn.active {
    background: var(--paper);
    color: var(--ink);
    border-color: var(--paper);
}

/* Portfolio Grid */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
    margin-bottom: 48px;
}

@media (min-width: 768px) {
    .portfolio-grid {
        grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
        gap: 28px;
    }
}

@media (min-width: 1024px) {
    .portfolio-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 32px;
    }
}

/* Portfolio Item Card */
.portfolio-item {
    position: relative;
    background: var(--panel);
    border: 1px solid rgba(255, 255, 255, 0.08);
    overflow: hidden;
    cursor: pointer;
    transition: all 0.4s ease;
    border-radius: var(--r);
}

.portfolio-item:hover {
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-6px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

.portfolio-item__image {
    position: relative;
    width: 100%;
    aspect-ratio: 4/3;
    overflow: hidden;
    background: var(--ink);
}

.portfolio-item__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top;
    transition: transform 0.4s ease;
}

.portfolio-item:hover .portfolio-item__image img {
    transform: scale(1.08);
}

/* Category badge */
.portfolio-item__badge {
    position: absolute;
    top: 12px;
    right: 12px;
    padding: 6px 12px;
    background: rgba(255, 255, 255, 0.95);
    color: var(--ink);
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-radius: 4px;
    z-index: 2;
}

/* Info */
.portfolio-item__info {
    padding: 18px;
    background: var(--panel);
}

.portfolio-item__title {
    font-size: 18px;
    font-weight: 700;
    color: var(--paper);
    margin: 0 0 8px 0;
    line-height: 1.3;
}

.portfolio-item__software {
    font-size: 13px;
    color: var(--muted);
    font-style: italic;
}

/* Lightbox Modal */
.portfolio-lightbox {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.95);
    z-index: 9999;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.portfolio-lightbox.active {
    display: flex;
}

.portfolio-lightbox__content {
    position: relative;
    max-width: 90vw;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.portfolio-lightbox__image {
    max-width: 100%;
    max-height: 80vh;
    object-fit: contain;
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 20px 80px rgba(0, 0, 0, 0.8);
}

.portfolio-lightbox__info {
    margin-top: 20px;
    text-align: center;
    color: var(--paper);
}

.portfolio-lightbox__title {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--paper);
}

.portfolio-lightbox__meta {
    font-size: 14px;
    color: var(--muted);
}

.portfolio-lightbox__close {
    position: absolute;
    top: -40px;
    right: 0;
    background: transparent;
    border: none;
    color: var(--paper);
    font-size: 36px;
    cursor: pointer;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    opacity: 0.7;
}

.portfolio-lightbox__close:hover {
    opacity: 1;
    transform: scale(1.1);
}

/* Loading state */
.portfolio-grid.loading {
    opacity: 0.5;
    pointer-events: none;
}

/* Empty state */
.portfolio-empty {
    text-align: center;
    padding: 60px 20px;
    color: var(--muted);
    font-size: 18px;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.portfolio-item {
    animation: fadeIn 0.5s ease-out forwards;
}

.portfolio-item:nth-child(1) { animation-delay: 0.05s; }
.portfolio-item:nth-child(2) { animation-delay: 0.1s; }
.portfolio-item:nth-child(3) { animation-delay: 0.15s; }
.portfolio-item:nth-child(4) { animation-delay: 0.2s; }
.portfolio-item:nth-child(5) { animation-delay: 0.25s; }
.portfolio-item:nth-child(6) { animation-delay: 0.3s; }