/* Fixed outer controls; only the category strip can shrink or scroll. */
.vertical-portfolio .portfolio-filter-bar { display: grid; grid-template-columns: auto minmax(0,1fr) auto; align-items: center; gap: 0; padding: 8px 0; }
.vertical-portfolio .portfolio-filter-bar .nav-identity { width: 0; max-width: none; min-width: 0; padding: 0; overflow: hidden; min-height: 44px; opacity: 0; pointer-events: none; transition: width 280ms ease, padding 280ms ease, opacity 200ms ease, transform 280ms ease; }
.vertical-portfolio.intro-collapsed .portfolio-filter-bar .nav-identity { width: 88px; max-width: none; padding: 0 16px 0 0; opacity: 1; transform: none; pointer-events: auto; }
.vertical-portfolio .portfolio-filter-bar .nav-signature { display: block; width: 54px; height: 20px; flex: 0 0 54px; }
.vertical-portfolio .portfolio-filter-bar .nav-identity > span { display: inline-block; flex: 0 0 auto; font-size: 12px; }
.vertical-portfolio .portfolio-filter-bar .portfolio-filters { display: flex; width: auto; min-width: 0; justify-content: flex-start; gap: 16px; overflow-x: auto; overscroll-behavior-x: contain; scrollbar-width: none; }
.vertical-portfolio .portfolio-filters::-webkit-scrollbar { display: none; }
.vertical-portfolio .portfolio-filter-bar .portfolio-filters button { flex: 0 0 auto; width: auto; min-height: 44px; padding: 10px 3px; font-size: 14px; gap: 7px; white-space: nowrap; color: var(--muted); opacity: 1; }
.vertical-portfolio .portfolio-filters button[aria-pressed=true], .vertical-portfolio .portfolio-filters button:hover { color: var(--ink); }
.vertical-portfolio .portfolio-filters button:focus-visible { outline-offset: -2px; }
.vertical-portfolio .portfolio-filter-bar .portfolio-count { margin: 0; padding: 0 18px; white-space: nowrap; }
@media (max-width:1050px) { .vertical-portfolio .portfolio-filter-bar .portfolio-count { display: none; } }
@media (max-width:600px) {
 .vertical-portfolio .portfolio-filter-bar { padding: 6px 0; }
 .vertical-portfolio .portfolio-filter-bar .portfolio-filters { gap: 10px; }
 .vertical-portfolio .portfolio-filter-bar .portfolio-filters button { font-size: 12px; gap: 6px; }
 .vertical-portfolio.intro-collapsed .portfolio-filter-bar .nav-identity { width: 56px; padding-right: 8px; gap: 4px; }
 .vertical-portfolio .portfolio-filter-bar .nav-signature { width: 36px; height: 14px; flex-basis: 36px; }
}
@media (prefers-reduced-motion:reduce) { .vertical-portfolio .portfolio-filter-bar .nav-identity { transition: none; } }

/* Shown when every category is deselected. */
.vertical-portfolio .portfolio-empty { display: flex; flex-direction: column; align-items: flex-start; gap: 12px; width: var(--portfolio-content-width); margin: 0 auto; padding: 48px 0 120px; color: var(--muted); }
.vertical-portfolio .portfolio-empty[hidden] { display: none; }
@media (max-width:650px) { .vertical-portfolio .portfolio-empty { padding: 32px 0 80px; } }
.vertical-portfolio .portfolio-empty p { margin: 0; font-size: 15px; }
.vertical-portfolio .portfolio-empty button { min-height: 44px; padding: 10px 0; border: 0; background: none; color: var(--ink); font: inherit; font-size: 14px; text-decoration: underline; text-underline-offset: 4px; cursor: pointer; }

/* Display preferences belong to the introduction, not the sticky work bar. */
.vertical-portfolio .intro-topline { display: flex; align-items: center; justify-content: space-between; gap: 12px; min-height: 44px; margin-bottom: 12px; }
.vertical-portfolio .intro-topline .intro-eyebrow { margin: 0; }
.vertical-portfolio .intro-topline .site-controls { position: static; inset: auto; display: flex; align-items: center; flex: 0 0 auto; gap: 4px; margin: 0; padding: 0; border: 0; transform: none; }
.vertical-portfolio .intro-topline .site-controls :is(.language-switcher,.theme-switcher) { position: static; width: 44px; min-width: 44px; height: 44px; padding: 12px; margin: 0; }
@media (max-width:600px) {
 .vertical-portfolio .portfolio-filter-bar .portfolio-filters button { font-size: 13px; }
}
@media (max-width:380px) {
 .vertical-portfolio .portfolio-filter-bar .portfolio-filters { gap: 4px; }
 .vertical-portfolio .portfolio-filter-bar .portfolio-filters button { font-size: 12px; gap: 5px; }
 .vertical-portfolio .intro-topline { gap: 8px; }
 .vertical-portfolio .intro-topline .site-controls { gap: 0; }
}