.portfolio-grid-section{background:var(--color-bg);padding:var(--space-24)0 var(--space-32);position:relative}.portfolio-grid-section__observer{pointer-events:none;visibility:hidden;position:absolute;top:20%}.portfolio-grid-section__header{max-width:600px;margin:0 0 var(--space-16);opacity:0;transition:opacity .7s var(--ease-out),transform .7s var(--ease-out);transform:translateY(24px)}.portfolio-grid-section--visible .portfolio-grid-section__header{opacity:1;transform:translateY(0)}.portfolio-grid-section__eyebrow{font-family:var(--font-mono);font-size:var(--text-xs);font-weight:var(--weight-medium);color:var(--color-accent);letter-spacing:var(--tracking-wider);text-transform:uppercase;margin-bottom:var(--space-5);display:inline-block}.portfolio-grid-section__title{font-family:var(--font-heading);font-size:clamp(2.25rem,5vw,3.5rem);font-weight:var(--weight-bold);line-height:var(--leading-tight);letter-spacing:var(--tracking-tight);color:var(--color-text);margin:0 0 var(--space-5)}.portfolio-grid-section__desc{font-size:var(--text-lg);line-height:var(--leading-normal);color:var(--color-text-secondary);max-width:50ch;margin:0}.portfolio-grid-section__filters{margin-bottom:var(--space-12);border-bottom:1px solid var(--color-border);opacity:0;transition:opacity .7s .15s var(--ease-out),transform .7s .15s var(--ease-out);flex-wrap:wrap;gap:0;display:flex;transform:translateY(16px)}.portfolio-grid-section--visible .portfolio-grid-section__filters{opacity:1;transform:translateY(0)}.portfolio-filter{padding:var(--space-4)var(--space-5);font-size:var(--text-sm);font-weight:var(--weight-medium);color:var(--color-text-secondary);cursor:pointer;transition:color var(--duration-fast)var(--ease-in-out);background:0 0;border:none;position:relative}.portfolio-filter:after{content:"";background:var(--color-accent);height:2px;transition:transform var(--duration-slow)var(--ease-out);position:absolute;bottom:-1px;left:0;right:0;transform:scaleX(0)}.portfolio-filter:hover{color:var(--color-text)}.portfolio-filter--active{color:var(--color-accent);font-weight:var(--weight-semibold)}.portfolio-filter--active:after{transform:scaleX(1)}.portfolio-grid-section__grid{gap:var(--space-4);grid-template-columns:1fr;display:grid}@media (min-width:640px){.portfolio-grid-section__grid{grid-template-columns:repeat(2,1fr)}}@media (min-width:1024px){.portfolio-grid-section__grid{grid-template-columns:repeat(3,1fr)}}@media (min-width:640px){.portfolio-grid-section__grid .project-card:first-child{grid-column:span 2}}.portfolio-skeleton{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);overflow:hidden}.portfolio-skeleton__image{aspect-ratio:16/10;background:linear-gradient(90deg,var(--color-surface)0%,var(--color-bg-elevated)50%,var(--color-surface)100%);background-size:200% 100%;width:100%;animation:1.6s ease-in-out infinite skeleton-shimmer}.portfolio-skeleton__body{padding:var(--space-6);gap:var(--space-3);flex-direction:column;display:flex}.portfolio-skeleton__line{border-radius:var(--radius-sm);background:linear-gradient(90deg,var(--color-surface)0%,var(--color-bg-elevated)50%,var(--color-surface)100%);background-size:200% 100%;height:14px;animation:1.6s ease-in-out .1s infinite skeleton-shimmer}.portfolio-skeleton__line--short{width:40%}.portfolio-skeleton__line--medium{width:70%}@keyframes skeleton-shimmer{0%{background-position:200% 0}to{background-position:-200% 0}}.portfolio-grid-section__empty{text-align:center;font-size:var(--text-base);color:var(--color-text-secondary);padding:var(--space-24)0}.project-card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);opacity:0;transition:border-color var(--duration-default)var(--ease-in-out),box-shadow var(--duration-default)var(--ease-in-out),transform var(--duration-slow)var(--ease-out);flex-direction:column;text-decoration:none;display:flex;overflow:hidden;transform:translateY(28px)}.portfolio-grid-section--visible .project-card{opacity:1;transition-delay:calc(var(--project-index,0)*70ms + .2s);transition-property:opacity,transform;transition-duration:.65s;transition-timing-function:var(--ease-out);transform:translateY(0)}.portfolio-grid-section--visible .project-card:hover{border-color:var(--color-border-accent);box-shadow:var(--shadow-glow);transform:translateY(-4px)}.project-card__image-wrap{aspect-ratio:16/10;background:var(--color-bg-deep);flex-shrink:0;position:relative;overflow:hidden}.project-card:first-child .project-card__image-wrap{aspect-ratio:2}.project-card__image{object-fit:cover;width:100%;height:100%;transition:transform .7s var(--ease-out);display:block}.project-card:hover .project-card__image{transform:scale(1.04)}.project-card__placeholder-svg{width:100%;height:100%;display:block}.project-card__overlay{padding:var(--space-6);opacity:0;transition:opacity var(--duration-default)var(--ease-in-out);background:linear-gradient(#200f0700 0%,#200f0766 55%,#200f07e6 100%);justify-content:flex-start;align-items:flex-end;display:flex;position:absolute;inset:0}.project-card:hover .project-card__overlay{opacity:1}.project-card__view-label{font-family:var(--font-heading);font-size:var(--text-sm);font-weight:var(--weight-semibold);color:var(--color-text);letter-spacing:var(--tracking-wide)}.project-card__image-badge{top:var(--space-4);left:var(--space-4);padding:var(--space-1)var(--space-3);color:var(--color-text);font-family:var(--font-mono);font-size:10px;font-weight:var(--weight-medium);text-transform:uppercase;letter-spacing:var(--tracking-wider);border-radius:var(--radius-sm);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);pointer-events:none;background:#200f07cc;display:inline-block;position:absolute}.project-card__body{padding:var(--space-6);gap:var(--space-2);flex-direction:column;flex:1;display:flex}.project-card__meta{align-items:center;gap:var(--space-3);margin-bottom:var(--space-1);display:flex}.project-card__year{font-family:var(--font-mono);font-size:var(--text-xs);color:var(--color-text-dim);font-variant-numeric:tabular-nums}.project-card__title{font-family:var(--font-heading);font-size:var(--text-xl);font-weight:var(--weight-semibold);color:var(--color-text);letter-spacing:var(--tracking-tight);line-height:var(--leading-snug);transition:color var(--duration-fast)var(--ease-in-out);margin:0}.project-card:first-child .project-card__title{font-size:clamp(1.25rem,2vw,1.75rem)}.portfolio-grid-section--visible .project-card:hover .project-card__title{color:var(--color-accent)}.project-card__excerpt{font-size:var(--text-sm);line-height:var(--leading-normal);color:var(--color-text-secondary);flex:1;margin:0}.project-card__tags{gap:var(--space-2);margin-top:var(--space-3);flex-wrap:wrap;display:flex}.project-card__tag{padding:2px var(--space-3);border-radius:var(--radius-sm);font-family:var(--font-mono);font-size:var(--text-xs);font-weight:var(--weight-medium);color:var(--color-text-dim);border:1px solid var(--color-border);transition:color var(--duration-fast)var(--ease-in-out),border-color var(--duration-fast)var(--ease-in-out);display:inline-block}.portfolio-grid-section--visible .project-card:hover .project-card__tag{border-color:var(--color-border-strong)}