/* Skin: "dark" — modern neon studio. Near-black, gradient brand, glow accents. */
.skin-dark { background: #0b0b10; }
.skin-dark .winframe { box-shadow: 0 18px 60px rgba(0,0,0,.7); border: 1px solid #20202c; }
.skin-dark .viewport { background: #0d0d14; }
.skin-dark .site { max-width: 900px; margin: 0 auto; font-family: "Helvetica Neue", "Segoe UI", Inter, Arial, sans-serif; color: #d6d6e0; }
.skin-dark .masthead { text-align: center; padding: 60px 24px 40px; background: radial-gradient(120% 90% at 50% -10%, #1b2440, #0d0d14 60%); }
.skin-dark .brand { margin: 0; font-weight: 800; font-size: 56px; letter-spacing: -1px; background: linear-gradient(90deg, #5ee7ff, #b07cff 60%, #ff6ec7); -webkit-background-clip: text; background-clip: text; color: transparent; }
.skin-dark .tag { margin: 16px 0 0; color: #9a9ab0; font-size: 18px; font-weight: 300; }
.skin-dark .content { padding: 40px 48px 44px; }
.skin-dark .content p { font-size: 17px; line-height: 1.75; color: #c4c4d2; margin: 0 0 1.1em; font-weight: 300; }
.skin-dark .content h2 { font-weight: 600; font-size: 26px; color: #fff; margin: 1.5em 0 .5em; }
.skin-dark .content a, .skin-dark .period-links a { color: #5ee7ff; text-decoration: none; border-bottom: 1px solid #2b6b78; }
.skin-dark .content a:hover { color: #b07cff; border-bottom-color: #6a4a9c; }
.skin-dark .period-links { font-size: 16px; margin: 0 0 22px; }
.skin-dark .inline img { max-width: 100%; height: auto; display: block; border-radius: 8px; border: 1px solid #20202c; }
.skin-dark .inline figcaption, .skin-dark .tile figcaption { font-size: 14px; color: #8a8aa0; margin-top: 6px; }
.skin-dark .period-gallery { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 10px; margin-top: 26px; }
.skin-dark .tile { margin: 0; }
.skin-dark .tile img { width: 100%; height: auto; display: block; border-radius: 8px; border: 1px solid #20202c; transition: border-color .15s, box-shadow .15s; }
.skin-dark .tile a:hover img { border-color: #5ee7ff; box-shadow: 0 0 18px rgba(94,231,255,.35); }
.skin-dark .period-foot { background: #08080c; color: #6a6a80; font-size: 14px; padding: 22px; text-align: center; font-weight: 300; }