:root{
  --primary:#f54e00;
  --primary-active:#d04200;
  --ink:#26251e;
  --body:#5a5852;
  --muted:#807d72;
  --muted-soft:#a09c92;
  --hairline:#e6e5e0;
  --hairline-soft:#efeee8;
  --hairline-strong:#cfcdc4;
  --canvas:#f7f7f4;
  --canvas-soft:#fafaf7;
  --card:#ffffff;
  --surface-strong:#e6e5e0;
  --on-primary:#ffffff;
  --tl-read:#9fbbe0;
  --tl-grep:#9fc9a2;
  --tl-done:#c08532;
  --tl-thinking:#dfa88f;

  --font-display:'Inter',system-ui,-apple-system,'Helvetica Neue',Helvetica,Arial,sans-serif;
  --font-mono:'JetBrains Mono','Fira Code',monospace;

  --r-xs:4px; --r-sm:6px; --r-md:8px; --r-lg:12px; --r-xl:16px; --r-pill:9999px;

  --sp-xxs:4px; --sp-xs:8px; --sp-sm:12px; --sp-base:16px; --sp-md:20px;
  --sp-lg:24px; --sp-xl:32px; --sp-xxl:48px; --sp-section:80px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  *{animation-duration:0.001ms !important; transition-duration:0.001ms !important;}
}

body{
  margin:0;
  background:var(--canvas);
  color:var(--ink);
  font-family:var(--font-display);
  font-size:16px;
  line-height:1.5;
  -webkit-font-smoothing:antialiased;
}

a{color:inherit;}
::selection{background:var(--primary); color:var(--on-primary);}

:focus-visible{
  outline:2px solid var(--primary);
  outline-offset:2px;
  border-radius:var(--r-xs);
}

/* ---------- Top nav ---------- */
.top-nav{
  height:64px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:0 32px;
  background:var(--canvas);
  border-bottom:1px solid var(--hairline);
  position:sticky;
  top:0;
  z-index:20;
  backdrop-filter:saturate(1.1);
}
.wordmark{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:16px;
  font-weight:600;
  letter-spacing:-0.2px;
  text-decoration:none;
  color:var(--ink);
  white-space:nowrap;
  flex-shrink:0;
}
.brand-logo{
  display:inline-block;
  flex:none;
  transition:transform 0.2s ease;
}
.wordmark:hover .brand-logo{
  transform:scale(1.05);
}

.nav-right{
  display:flex;
  align-items:center;
  gap:16px;
  font-size:14px;
  font-weight:500;
  flex-shrink:0;
}
.nav-count{
  font-family:var(--font-mono);
  font-size:13px;
  color:var(--muted);
  background:var(--surface-strong);
  padding:4px 10px;
  border-radius:var(--r-pill);
  white-space:nowrap;
}
.nav-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--body);
  text-decoration:none;
  white-space:nowrap;
}
.nav-link:hover{ color:var(--ink); }
.nav-link-text{
  display:inline;
}
.nav-github-icon{
  display:none;
  width:20px;
  height:20px;
}

/* ---------- Hero ---------- */
.hero{
  padding:64px 32px 72px;
  background:var(--canvas);
  display:grid;
  grid-template-columns:1.1fr 0.9fr;
  gap:56px;
  align-items:center;
  max-width:1280px;
  margin:0 auto;
}
.eyebrow{
  font-size:11px;
  font-weight:600;
  letter-spacing:0.88px;
  text-transform:uppercase;
  color:var(--muted);
  margin:0 0 18px;
}
.hero h1{
  font-family:var(--font-display);
  font-weight:400;
  letter-spacing:-1.4px;
  line-height:1.08;
  margin:0 0 20px;
  font-size:32px;
  color:var(--ink);
}
@media (min-width:640px){ .hero h1{ font-size:48px; letter-spacing:-1.6px; } }
@media (min-width:1024px){ .hero h1{ font-size:64px; letter-spacing:-2.16px; } }

.hero h1 em{
  font-style:normal;
  color:var(--primary);
}
.hero p.lede{
  font-size:17px;
  color:var(--body);
  max-width:46ch;
  margin:0 0 32px;
}
.hero-ctas{
  display:flex;
  align-items:center;
  gap:12px;
  flex-wrap:wrap;
}
.btn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-family:var(--font-display);
  font-size:14px;
  font-weight:500;
  border-radius:var(--r-md);
  border:1px solid transparent;
  cursor:pointer;
  text-decoration:none;
  transition:background-color .15s ease, border-color .15s ease, transform .1s ease;
}
.btn:active{ transform:translateY(1px); }
.btn-primary{
  background:var(--primary);
  color:var(--on-primary);
  padding:12px 20px;
  height:44px;
}
.btn-primary:hover{ background:var(--primary-active); }
.btn-text{
  background:transparent;
  color:var(--ink);
  padding:10px 4px;
  border-bottom:1px solid var(--hairline-strong);
  border-radius:0;
}
.btn-text:hover{ border-color:var(--ink); }

/* ---------- IDE mock signature ---------- */
.ide-card{
  background:var(--card);
  border:1px solid var(--hairline);
  border-radius:var(--r-lg);
  overflow:hidden;
}
.ide-titlebar{
  display:flex;
  align-items:center;
  gap:8px;
  padding:12px 16px;
  border-bottom:1px solid var(--hairline);
}
.ide-dot{ width:9px; height:9px; border-radius:50%; background:var(--hairline-strong); }
.ide-tab{
  margin-left:8px;
  font-family:var(--font-mono);
  font-size:12px;
  color:var(--muted);
  background:var(--canvas-soft);
  border:1px solid var(--hairline);
  padding:3px 10px;
  border-radius:var(--r-sm);
}

/* ---------- Hero Preview Image Optimization Styles ---------- */
.hero-preview-container {
  position: relative;
  width: 100%;
  aspect-ratio: 16/10;
  overflow: hidden;
  background: var(--canvas-soft);
  border-bottom: 1px solid var(--hairline);
  contain: layout paint;
}

.hero-lqip-placeholder {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--surface-strong), var(--canvas-soft));
  filter: blur(12px);
  transform: scale(1.08);
  transition: opacity 0.3s ease;
  z-index: 1;
}

.hero-preview-img {
  position: relative;
  z-index: 2;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top;
  display: block;
  opacity: 0;
  transition: opacity 0.25s ease;
}

.hero-preview-img.loaded {
  opacity: 1;
}

.ide-pane{
  background:var(--canvas-soft);
  margin:16px;
  border-radius:var(--r-md);
  padding:16px;
  font-family:var(--font-mono);
  font-size:12.5px;
  line-height:1.7;
  color:var(--body);
  overflow:hidden;
}
.ide-pane .k{ color:#8a6d3f; }
.ide-pane .s{ color:#2f7a5a; }
.ide-pane .p{ color:var(--muted-soft); }
.ide-pipeline{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  padding:0 16px 16px;
}
.pill{
  font-family:var(--font-display);
  font-size:11px;
  font-weight:600;
  letter-spacing:0.88px;
  text-transform:uppercase;
  padding:4px 10px;
  border-radius:var(--r-pill);
  color:var(--ink);
}
.pill-read{ background:var(--tl-read); }
.pill-grep{ background:var(--tl-grep); }
.pill-done{ background:var(--tl-done); color:var(--on-primary); }

/* ---------- Browse section ---------- */
.browse{
  max-width:1280px;
  margin:0 auto;
  padding:0 32px 96px;
}
.browse-head{
  display:flex;
  flex-direction:column;
  gap:16px;
  padding:32px 0 24px;
  border-top:1px solid var(--hairline);
}
.search-row{
  display:flex;
  gap:12px;
  flex-wrap:wrap;
  align-items:center;
}
.search-input{
  flex:1;
  min-width:240px;
  background:var(--card);
  color:var(--ink);
  border:1px solid var(--hairline-strong);
  border-radius:var(--r-md);
  padding:12px 16px;
  height:44px;
  font-family:var(--font-display);
  font-size:15px;
}
.search-input::placeholder{ color:var(--muted-soft); }
.search-input:focus{ outline:none; border-color:var(--ink); }

.results-count{
  font-family:var(--font-mono);
  font-size:12.5px;
  color:var(--muted);
}

.filter-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.sort-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  padding: 5px 12px;
  height: 28px;
  border-radius: var(--r-pill);
  background: var(--surface-strong);
  color: var(--body);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.15s ease;
}
.sort-btn:hover {
  background: var(--hairline-strong);
  color: var(--ink);
}
.sort-btn.active {
  background: var(--primary);
  color: var(--on-primary);
  border-color: var(--primary);
}
.sort-btn .heart-icon {
  width: 13px;
  height: 13px;
}

.alpha-row{
  display:flex;
  flex-wrap:wrap;
  gap:6px;
}
.alpha-btn{
  font-family:var(--font-mono);
  font-size:12px;
  font-weight:500;
  padding:5px 9px;
  border-radius:var(--r-pill);
  background:var(--surface-strong);
  color:var(--body);
  border:1px solid transparent;
  cursor:pointer;
}
.alpha-btn:hover{ background:var(--hairline-strong); }
.alpha-btn.active{
  background:var(--ink);
  color:var(--canvas);
}
.alpha-btn:disabled{
  opacity:0.35;
  cursor:default;
}
.alpha-btn:disabled:hover{ background:var(--surface-strong); }

/* ---------- Grid ---------- */
.grid{
  display:grid;
  grid-template-columns:repeat(auto-fill, minmax(300px, 1fr));
  gap:20px;
  margin-top:24px;
  box-sizing:border-box;
}
.card{
  display:flex;
  flex-direction:column;
  background:var(--card);
  border:1px solid var(--hairline);
  border-radius:var(--r-lg);
  overflow:hidden;
  text-decoration:none;
  color:inherit;
  transition:border-color .15s ease, transform .15s ease;
}
.card:hover{
  border-color:var(--hairline-strong);
  transform:translateY(-2px);
}
.card-preview{
  background:var(--canvas-soft);
  display:flex;
  flex-direction:column;
}
.preview-chrome{
  display:flex;
  align-items:center;
  gap:5px;
  padding:8px 10px;
  border-bottom:1px solid var(--hairline);
  background:var(--card);
  flex:none;
}
.preview-chrome .ide-dot{ width:7px; height:7px; }
.preview-img-wrap{
  position:relative;
  width:100%;
  aspect-ratio:16/10;
  overflow:hidden;
  background:linear-gradient(135deg, var(--surface-strong), var(--canvas-soft));
  flex:none;
}

/* Skeleton shimmer placeholder for grid cards */
.preview-img-wrap.skeleton::before {
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(
    90deg,
    rgba(255,255,255,0) 0%,
    rgba(255,255,255,0.4) 50%,
    rgba(255,255,255,0) 100%
  );
  animation:skeleton-shimmer 1.5s infinite;
  z-index:1;
}

@keyframes skeleton-shimmer {
  0% { transform:translateX(-100%); }
  100% { transform:translateX(100%); }
}

.preview-img-wrap img{
  width:100%;
  height:100%;
  object-fit:cover;
  object-position:top;
  display:block;
  opacity:0;
  transition:opacity .25s ease;
  position:relative;
  z-index:2;
}
.preview-img-wrap img.loaded{
  opacity:1;
}
.preview-fallback{
  position:absolute;
  inset:0;
  display:flex;
  align-items:center;
  justify-content:center;
  font-family:var(--font-display);
  font-weight:600;
  font-size:22px;
  letter-spacing:-0.5px;
  color:var(--muted);
  z-index:0;
}
.card-body{
  min-width:0;
  flex:1;
  padding:14px 16px 16px;
  display:flex;
  flex-direction:column;
  justify-content:space-between;
}
.card-name{
  font-size:15px;
  font-weight:600;
  letter-spacing:0;
  margin:0 0 2px;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.card-tagline{
  font-size:12.5px;
  color:var(--muted);
  margin:0 0 10px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  min-height:37.5px;
}

.card-footer-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-top: 4px;
}

.card-url{
  font-family:var(--font-mono);
  font-size:11.5px;
  color:var(--muted-soft);
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
  display:block;
  flex: 1;
}

/* ---------- Like Button Styles ---------- */
.like-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 8px;
  background: var(--canvas-soft);
  border: 1px solid var(--hairline);
  border-radius: var(--r-pill);
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 500;
  color: var(--body);
  cursor: pointer;
  transition: all 0.15s ease;
  user-select: none;
  flex: none;
}

.like-btn:hover {
  background: var(--hairline-soft);
  color: var(--primary);
  border-color: var(--hairline-strong);
}

.like-btn.liked {
  background: rgba(245, 78, 0, 0.08);
  border-color: rgba(245, 78, 0, 0.25);
  color: var(--primary);
  font-weight: 600;
}

.like-btn .heart-icon {
  width: 13px;
  height: 13px;
  transition: transform 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275), fill 0.15s ease;
}

.like-btn:active .heart-icon {
  transform: scale(1.3);
}

.like-btn.liked .heart-icon {
  fill: var(--primary);
  stroke: var(--primary);
  animation: heart-pop 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

@keyframes heart-pop {
  0% { transform: scale(1); }
  50% { transform: scale(1.35); }
  100% { transform: scale(1); }
}

.empty-state{
  padding:64px 24px;
  text-align:center;
  color:var(--muted);
  font-size:15px;
}
.empty-state strong{ color:var(--ink); display:block; margin-bottom:6px; font-size:17px; font-weight:600; }

#sentinel{ height:1px; }

/* ---------- Footer ---------- */
.footer{
  border-top:1px solid var(--hairline);
  padding:40px 32px;
  display:flex;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:12px;
  font-size:13px;
  color:var(--body);
}
.footer a{ color:var(--body); text-decoration:underline; text-underline-offset:2px; }
.footer a:hover{ color:var(--ink); }

@media (max-width: 900px){
  .hero{ grid-template-columns:1fr; padding-top:40px; }
}

@media (max-width: 640px){
  .top-nav{
    padding:0 12px;
    gap:8px;
  }
  .wordmark{
    font-size:14.5px;
    gap:7px;
  }
  .wordmark .brand-logo{
    width:20px;
    height:20px;
  }
  .nav-right{
    gap:10px;
  }
  .nav-count{
    font-size:11.5px;
    padding:3px 8px;
  }
  .nav-link-text{
    display:none;
  }
  .nav-github-icon{
    display:block;
  }
  .hero{ padding:32px 16px 48px; }
  .browse{ padding:0 16px 64px; }
}

@media (max-width: 375px){
  .top-nav{
    padding:0 10px;
  }
  .wordmark{
    font-size:13.5px;
    gap:6px;
  }
  .nav-count{
    font-size:10.5px;
    padding:2px 6px;
  }
}

@media (max-width: 320px){
  .top-nav{
    padding:0 6px;
  }
  .wordmark span{
    font-size:12.5px;
  }
  .nav-right{
    gap:6px;
  }
  .nav-count{
    font-size:10px;
    padding:2px 5px;
  }
}