/* Shared navigation and the portfolio's app introduction. */
:root { color-scheme: dark; --vl-accent: #65dfec; }
html { scroll-padding-top: 1.5rem; }
.skip-link { position: absolute; left: 1rem; top: -6rem; padding: .75rem 1rem; background: #65dfec; color: #071012; z-index: 10001; }
.skip-link:focus { top: 1rem; }
a:focus-visible, button:focus-visible, summary:focus-visible { outline: 2px solid var(--vl-accent); outline-offset: 5px; }
.site-header { max-width: 1400px; margin: 0 auto; padding: 1.6rem 5%; display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; border-bottom: 1px solid #ffffff16; }
.site-brand { color: #f4f6f6; text-decoration: none; font-size: 1rem; font-weight: 750; letter-spacing: -.025em; display: inline-flex; align-items: center; white-space: nowrap; }
.site-brand > span:first-child { font-weight: 400; }
.brand-dot { width: 6px; height: 6px; margin-left: 8px; border-radius: 50%; background: var(--vl-accent); }
.site-header nav { display: flex; gap: clamp(1rem, 3vw, 2.5rem); align-items: center; }
.site-header nav a { color: #aeb7ba; font-size: .875rem; text-decoration: none; padding: .5rem 0; }
.site-header nav a:hover, .site-header nav a[aria-current="page"] { color: #fff; }
.site-header nav a[aria-current="page"] { text-decoration: underline; text-decoration-color: var(--vl-accent); text-underline-offset: 8px; }
.portfolio-intro { display: flex; justify-content: space-between; align-items: end; gap: 2rem; padding: 3rem 0 2rem; }
.portfolio-intro h1 { font-size: clamp(2rem, 4.2vw, 4rem); font-weight: 550; letter-spacing: -.055em; line-height: 1.12; }
.portfolio-intro p { margin-top: .65rem; color: #aaa; max-width: 38rem; }
.portfolio-app-link { color: var(--vl-accent); text-decoration: none; white-space: nowrap; padding: .5rem 0; }
.portfolio-app-link:hover { text-decoration: underline; text-underline-offset: 5px; }
#portfolio .portfolio-filter { justify-content: flex-start; margin-bottom: 1.5rem; gap: .6rem; }
#portfolio .filter-btn { font-size: .82rem; padding: .65rem 1rem; }
#portfolio .portfolio-grid { margin-top: 1rem; }
#product { padding-top: 4rem; padding-bottom: 4rem; }
.app-teaser { display: grid; grid-template-columns: 1fr 1.1fr; gap: clamp(2rem, 5vw, 5rem); align-items: center; }
.teaser-identity { display: flex; gap: .75rem; align-items: center; margin-bottom: 1.5rem; font-weight: 600; }
.teaser-identity img { border-radius: 11px; }
.app-teaser h2 { font-size: clamp(2rem, 4vw, 3.5rem); font-weight: 550; line-height: 1.1; letter-spacing: -.05em; margin-bottom: 1.2rem; }
.app-teaser p { color: #aeb7ba; max-width: 32rem; }
.teaser-actions { display: flex; flex-wrap: wrap; gap: 1.5rem; align-items: center; margin-top: 1.5rem; }
.teaser-button { display: inline-flex; padding: .8rem 1.2rem; border-radius: 6px; background: var(--vl-accent); color: #071012; font-weight: 650; text-decoration: none; }
.teaser-button:hover { background: #a2eef5; }
.teaser-download { color: #e9eeee; text-decoration: underline; text-underline-offset: 5px; }
.app-teaser .teaser-note { font-size: .8rem; margin-top: 1rem; }
.teaser-photo { margin: 0; min-width: 0; }
.teaser-photo img { width: 100%; height: auto; display: block; border-radius: 6px; }
.teaser-photo figcaption { display: flex; flex-wrap: wrap; gap: .3rem 1rem; justify-content: space-between; font-size: .75rem; color: #9da7aa; margin-top: .7rem; }
.teaser-photo figcaption span:first-child { color: var(--vl-accent); }
.portfolio-footer-links { display: flex; flex-wrap: wrap; justify-content: center; gap: 1.5rem; margin-top: 1.5rem; }
.portfolio-footer-links a { color: #aaa; font-size: .875rem; text-underline-offset: 5px; }
@media (max-width: 800px) {
    .site-header { flex-wrap: wrap; padding: 1.1rem 4%; gap: .65rem 1.5rem; }
    .site-header nav { flex-wrap: wrap; gap: 1.4rem; }
    .portfolio-intro { align-items: start; flex-direction: column; gap: .8rem; padding: 1.5rem 0 2rem; }
    .app-teaser { grid-template-columns: 1fr; }
    .teaser-photo { max-width: 680px; }
}
@media (max-width: 480px) {
    .site-header nav { width: 100%; justify-content: space-between; gap: .5rem; }
    .site-header nav a { font-size: .8rem; }
}
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; scroll-behavior: auto !important; }
}