:root{--bg:#ffffff;--fg:#111827;--muted:#6b7280;--border:#e5e7eb;--primary:#2563eb;--card:#f9fafb;--accent:#facc15;--header:#f3f4f6}
*{box-sizing:border-box;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif}
html,body{margin:0;height:100%;background:var(--bg);color:var(--fg)}
.topbar{padding:12px 16px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;background:var(--header);position:sticky;top:0;z-index:10}
h1{margin:0;font-size:18px;font-weight:700}
.badge{font-size:12px;border:1px solid var(--border);padding:2px 8px;border-radius:999px;margin-left:8px}
.badge.demo{background:var(--accent);border-color:var(--accent);color:#111}
.hdr-left{display:flex;align-items:center;gap:8px}
.hdr-tools{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
button,.btn{border:1px solid var(--border);background:#ffffff;padding:8px 12px;border-radius:10px;cursor:pointer;color:var(--fg);text-decoration:none;display:inline-block}
button.primary,.btn.primary{background:var(--primary);border-color:var(--primary);color:#fff}
button:disabled{opacity:.5;cursor:not-allowed}
.container{max-width:1200px;margin:1px auto;padding:0 16px}
.hero{padding:24px 0}
.grid{display:grid;grid-template-columns:1fr;gap:16px}
@media (min-width:900px){.grid{grid-template-columns:1fr 1fr}}
.card{border:1px solid var(--border);border-radius:14px;background:var(--card);padding:16px}
.card .topbar{display:flex;align-items:center;justify-content:space-between;gap:8px}
.card p{color:var(--muted);margin-top:8px}
.footer-actions{margin-top:12px}
.hint{font-size:12px;color:var(--muted)}
.modal-backdrop{position:fixed;inset:0;background:rgba(0,0,0,.35);display:none;align-items:center;justify-content:center;padding:20px;z-index:50}
.modal{background:#fff;border-radius:14px;max-width:680px;width:100%;box-shadow:0 20px 50px rgba(0,0,0,.25);overflow:hidden}
.modal header{padding:12px 16px;border-bottom:1px solid var(--border)}
.modal .body{padding:16px;max-height:60vh;overflow:auto}
.modal .footer{padding:12px 16px;border-top:1px solid var(--border);display:flex;justify-content:flex-end;gap:8px}

.card header{background:transparent;}
.card h3{margin:0;font-size:18px;color:var(--fg)}

.card{transition:transform .12s ease, box-shadow .12s ease}
.card:hover{transform:translateY(-2px); box-shadow:0 6px 18px rgba(0,0,0,.08)}


/* Sponsor / support banner */
.support-banner {
  margin-top: 32px;
  padding: 16px 20px;
  border-top: 1px solid #e5e7eb;
  background: #f9fafb;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  font-size: 0.9rem;
}

.support-banner-text {
  flex: 1 1 220px;
  color: #374151;
}

.support-banner-text strong {
  display: block;
  font-size: 1rem;
  margin-bottom: 2px;
}

.support-banner-slot {
  flex: 0 0 auto;
  min-width: 160px;
  text-align: right;
}

/* Any sponsor image / banner dropped in here */
.support-banner-slot img {
  max-width: 220px;     /* tweak as needed */
  height: auto;
  display: inline-block;
}
  
/* Mobile: stack vertically */
@media (max-width: 640px) {
  .support-banner {
    flex-direction: column;
    align-items: flex-start;
  }
  .support-banner-slot {
    text-align: left;
  }
}



/* ---- Demo screenshot slider ---- */

.demo-slider {
  margin: 24px auto 32px;
  max-width: 1000px;          /* roughly 4 cards wide on desktop */
  display: flex;
  align-items: center;
  gap: 8px;
}

.slider-viewport {
  overflow: hidden;          /* important: hide extra slides */
  flex: 1 1 auto;
}

.slider-track {
  display: flex;
  gap: 16px;
  padding: 4px 2px;
  transition: transform 0.25s ease;  /* smooth movement */
}

/* FIXED card width: no shrinking */
.slide {
  flex: 0 0 230px;           /* fixed width card */
  border: none;
  background: #ffffff;
  border-radius: 12px;
  padding: 8px 8px 10px;
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.1);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.slide img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 8px;
}

.slide-label {
  margin-top: 8px;
  font-size: 0.8rem;
  color: #374151;
  text-align: center;
}

.slide:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 10px rgba(15, 23, 42, 0.18);
}

.slider-nav {
  border: none;
  background: #e5e7eb;
  color: #111827;
  border-radius: 999px;
  width: 30px;
  height: 30px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  cursor: pointer;
  flex: 0 0 auto;
  transition: background 0.15s ease, transform 0.1s ease;
}

.slider-nav:hover {
  background: #d1d5db;
  transform: translateY(-1px);
}

@media (max-width: 640px) {
  .demo-slider {
    max-width: 100%;
  }
  .slider-nav {
    display: none; /* swipe/drag on mobile */
  }
}

.slide img {
  height: 90px;
  width: auto;
  object-fit: contain;
}

.slide-label {
  margin-top: 6px;
  font-size: 0.8rem;
  color: #374151;
  text-align: center;
}

.slide:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 10px rgba(15, 23, 42, 0.18);
}

.slider-nav {
  border: none;
  background: #e5e7eb;
  color: #111827;
  border-radius: 999px;
  width: 30px;
  height: 30px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  cursor: pointer;
  flex: 0 0 auto;
  transition: background 0.15s ease, transform 0.1s ease;
}

.slider-nav:hover {
  background: #d1d5db;
  transform: translateY(-1px);
}

/* Smaller layout on mobile */
@media (max-width: 640px) {
  .demo-slider {
    margin-top: 16px;
  }
  .slider-nav {
    display: none; /* swiping/scrolling is enough on mobile */
  }
}

/* ---- Lightbox viewer ---- */

.screenshot-viewer[hidden] {
  display: none;
}

.screenshot-viewer {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: center;
}

.viewer-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.6);
}

.viewer-content {
    position: relative;
    z-index: 1;
    width: 80vw;
    height: 85vh;
    background: white;
    border-radius: 10px;
    padding: 12px;
    
    display: flex;
    flex-direction: column;    /* vertical layout */
    justify-content: center;   /* center image vertically */
    align-items: center;       /* center horizontally */
}

.viewer-content img {
    max-width: 100%;
    max-height: calc(70vh - 60px);  /* leave room for caption */
    object-fit: contain;
}

#viewerCaption,
.viewer-content figcaption {
    margin-top: 12px;
    font-size: 0.85rem;
    color: #4b5563;
    text-align: center;
    flex-shrink: 0;            /* prevents being squeezed beside the image */
}



.viewer-content img {
  max-width: 80vw;
  max-height: 70vh;
  object-fit: contain;
  border-radius: 6px;
}

.viewer-caption {
  margin-top: 6px;
  font-size: 0.85rem;
  color: #4b5563;
}

.viewer-close {
  position: absolute;
  top: 6px;
  right: 8px;
  border: none;
  background: transparent;
  font-size: 1.4rem;
  cursor: pointer;
  color: #374151;
}

.viewer-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  border: none;
  background: rgba(15, 23, 42, 0.6);
  color: #f9fafb;
  width: 32px;
  height: 48px;
  border-radius: 999px;
  cursor: pointer;
  font-size: 1.6rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.viewer-prev { left: 6px; }
.viewer-next { right: 6px; }

.viewer-arrow:hover {
  background: rgba(15, 23, 42, 0.8);
}

#viewerCaption,
.viewer-content figcaption {
    margin-top: 12px;
    font-size: 0.85rem;
    color: #4b5563;
    text-align: center;
    font-weight: bold;     /* ← make caption bold */
}