:root{
  --bg:#0f0f10;
  --panel:#151518;
  --text:#e9e9ea;
  --muted:#a9acb2;
  --brand:#7c5cff;
  --ring: #a695ff;
  --card:#1a1a1e;
  --border:#24242a;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, "Helvetica Neue", Arial, "Noto Sans", "Apple Color Emoji","Segoe UI Emoji", "Segoe UI Symbol";
  background: var(--bg);
  color: var(--text);
  line-height:1.6;
}

/* Skip navigation for accessibility */
.skip-nav {
  position: absolute;
  top: -40px;
  left: 6px;
  background: var(--brand);
  color: white;
  padding: 8px;
  text-decoration: none;
  border-radius: 4px;
  z-index: 1000;
  transition: top 0.3s;
}
.skip-nav:focus {
  top: 6px;
}

a{color:var(--text); text-decoration:none}
a.link{color:var(--brand)}
a:focus-visible, button:focus-visible{outline:2px solid var(--ring); outline-offset:2px; border-radius:6px}

.site-header{
  position:sticky; top:0; z-index:50;
  display:flex; gap:1rem; align-items:center; justify-content:space-between;
  padding:0.75rem 1rem; background:rgba(15,15,16,0.8); backdrop-filter: blur(8px);
  border-bottom:1px solid var(--border);
}
.brand{font-weight:700; letter-spacing:0.3px}
.nav{display:flex; gap:1rem; align-items:center}
.nav a{opacity:0.85; padding:0.4rem 0.6rem; border-radius:8px}
.nav a.active, .nav a:hover{background:var(--panel); opacity:1}

.dropdown{position:relative}
.dropbtn{
  background:transparent; border:1px solid var(--border); color:var(--text);
  padding:0.4rem 0.6rem; border-radius:8px; cursor:pointer;
  transition: background 0.2s ease;
}
.dropbtn:hover, .dropbtn.active{
  background:var(--panel); opacity:1;
}
.dropdown.open .dropbtn {
  background:var(--panel);
  border-color: var(--ring);
}
.dropdown-content{
  position:absolute; top:120%; left:0; min-width:200px; display:none; flex-direction:column;
  background:var(--card); border:1px solid var(--border); border-radius:10px; padding:0.4rem;
  box-shadow: 0 10px 24px rgba(0,0,0,0.35); z-index:100;
}
.dropdown:hover .dropdown-content,
.dropdown.open .dropdown-content{display:flex}
.dropdown-content a{padding:0.5rem 0.6rem; border-radius:8px; transition: background 0.2s ease;}
.dropdown-content a:hover{background:var(--panel)}

.social a{font-size:0.9rem; opacity:0.8; padding:.2rem .4rem; border:1px solid var(--border); border-radius:6px}
.social a:hover{opacity:1; background:var(--panel)}

.hero{
  display:grid; place-items:center; padding:8vh 1rem 2rem;
  text-align:center; gap:0.75rem; background:
    radial-gradient(600px 200px at 50% -20%, rgba(124,92,255,.25), transparent),
    linear-gradient(180deg, rgba(20,20,24,.6), transparent 35%),
    var(--bg);
}
.hero h1{font-size:clamp(2rem, 4vw, 3rem); margin:0}
.hero p{color:var(--muted); margin:0}

.section{padding:2rem 1rem; max-width:1200px; margin:0 auto}
.section-head{display:flex; align-items:flex-end; justify-content:space-between; gap:1rem; margin-bottom:1rem}
.section-head h2, .section-head h1{margin:0}

.grid{
  display:grid; gap:0.9rem;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
}
.card{
  background:var(--card); border:1px solid var(--border); border-radius:14px; overflow:hidden;
  transition: transform .15s ease, box-shadow .15s ease;
}
.card:hover{transform: translateY(-2px); box-shadow: 0 10px 24px rgba(0,0,0,0.35)}
.thumb{
  display:block; width:100%; aspect-ratio: 4 / 3; object-fit:cover; background:#0b0b0c;
}

.meta{padding:0.7rem 0.8rem}
.meta .title{font-weight:600}
.meta .caption{color:var(--muted); font-size:0.9rem}

.site-footer{
  border-top:1px solid var(--border); padding:1.2rem 1rem; text-align:center; color:var(--muted);
}

.narrow{max-width:800px; margin:2rem auto; padding:0 1rem}
.about-photo{max-width:260px; width:60%; border-radius:12px; border:1px solid var(--border)}

.filters{display:flex; gap:0.5rem; flex-wrap:wrap}
.filters .pill{
  border:1px solid var(--border); background:var(--panel); color:var(--text);
  padding:0.35rem 0.7rem; border-radius:999px; cursor:pointer;
}
.filters .pill.active{outline:2px solid var(--ring)}

.button{
  display:inline-block; background:var(--brand); color:#fff; border:none; border-radius:10px;
  padding:0.7rem 1rem; font-weight:600;
}
.button:hover{filter:brightness(1.05)}
.muted{color:var(--muted); font-size:0.95rem}
code{background:#111216; padding:0.15rem 0.35rem; border-radius:6px; border:1px solid var(--border)}

/* Error and loading states */
.error-message, .loading-message {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 3rem 2rem;
  text-align: center;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  margin: 2rem 0;
}

.error-message h3 {
  color: #ff6b6b;
  margin: 0 0 1rem 0;
}

.error-message p {
  color: var(--muted);
  margin: 0 0 1.5rem 0;
}

.loading-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--border);
  border-top: 3px solid var(--brand);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-bottom: 1rem;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.empty-category {
  grid-column: 1 / -1;
  text-align: center;
  padding: 3rem 2rem;
  color: var(--muted);
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
}

/* Improved focus styles */
a:focus-visible, button:focus-visible, .pill:focus-visible {
  outline: 3px solid var(--ring);
  outline-offset: 2px;
  border-radius: 6px;
}

/* Enhanced dropdown accessibility */
.dropdown:focus-within .dropdown-content {
  display: flex;
}

/* Responsive improvements */
@media (max-width: 768px) {
  .site-header {
    flex-direction: column;
    gap: 0.5rem;
    padding: 1rem;
  }
  
  .nav {
    flex-wrap: wrap;
    justify-content: center;
  }
  
  .dropdown-content {
    position: static;
    display: none;
    box-shadow: none;
    border: none;
    background: var(--panel);
    margin-top: 0.5rem;
    width: 100%;
  }
  
  .dropdown:hover .dropdown-content,
  .dropdown:focus-within .dropdown-content,
  .dropdown.open .dropdown-content {
    display: flex;
  }
  
  .hero {
    padding: 4vh 1rem 2rem;
  }
  
  .grid {
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 0.7rem;
  }
}

@media (max-width: 480px) {
  .grid {
    grid-template-columns: 1fr 1fr;
  }
  
  .filters {
    justify-content: center;
  }
  
  .section-head {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
}

/* Respect reduced motion preferences */
@media (prefers-reduced-motion: reduce) {
  .card {
    transition: none;
  }
  
  .loading-spinner {
    animation: none;
    border-top-color: var(--brand);
  }
  
  .skip-nav {
    transition: none;
  }
}

/* Backdrop filter fallback */
@supports not (backdrop-filter: blur(8px)) {
  .site-header {
    background: var(--bg);
  }
}