:root {
  --navy: #0A192F;
  --snow: #F8F9FA;
  --font-main: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  background-color: var(--navy);
  color: var(--snow);
  font-family: var(--font-main);
  line-height: 1.6;
  max-width: 900px;
  margin: 0 auto;
  padding: 20px;
}

a { color: var(--snow); text-decoration: none; border-bottom: 1px solid rgba(248,249,250,0.4); transition: border-color 0.2s; }
a:hover { border-bottom-color: var(--snow); }

.small { font-size: 0.75rem; opacity: 0.85; }
.greetings { font-size: 0.6rem; text-align: center; margin: 15px 0; letter-spacing: 1px; opacity: 0.7; }

/* Hero / Service Section */
.service-hero { text-align: center; margin: 30px 0; padding-bottom: 20px; border-bottom: 1px solid rgba(248,249,250,0.2); }
.service-title { font-size: 1.1rem; font-weight: 600; margin-bottom: 10px; letter-spacing: 0.5px; }
.upload-btn {
  background: transparent; color: var(--snow); border: 2px solid var(--snow);
  padding: 12px 24px; border-radius: 8px; cursor: pointer; font-size: 1rem; margin: 15px 0;
  transition: 0.2s ease; font-family: var(--font-main);
}
.upload-btn:hover { background: var(--snow); color: var(--navy); }
.lang-explain { font-size: 0.8rem; margin: 8px 0; opacity: 0.9; }
.badges { font-size: 0.75rem; margin: 10px 0; letter-spacing: 0.5px; }
.privacy-note { font-size: 0.65rem; margin-top: 10px; font-style: italic; opacity: 0.85; max-width: 600px; margin-left: auto; margin-right: auto; }

/* Images */
.top-images { display: flex; gap: 15px; justify-content: center; margin: 30px 0; }
.top-images img { width: 48%; height: 150px; object-fit: cover; border-radius: 8px; border: 1px solid rgba(248,249,250,0.3); }

/* Chapters */
.chapter { background: rgba(248,249,250,0.05); padding: 20px; margin: 20px 0; border-radius: 12px; border: 1px solid rgba(248,249,250,0.2); }
.chapter h3 { margin-bottom: 10px; }
.chapter-actions { display: flex; gap: 10px; margin-top: 15px; }
.btn { background: transparent; color: var(--snow); border: 1px solid var(--snow); padding: 8px 16px; border-radius: 6px; cursor: pointer; font-size: 0.85rem; font-family: var(--font-main); }
.btn:hover { background: var(--snow); color: var(--navy); }

.translate-placeholder { display: flex; gap: 8px; margin: 20px 0; opacity: 0.6; justify-content: center; flex-wrap: wrap; }
.translate-placeholder span { font-size: 0.7rem; border: 1px dashed rgba(248,249,250,0.5); padding: 4px 8px; border-radius: 4px; }

/* Gallery */
.gallery-section { background: rgba(248,249,250,0.05); padding: 40px; border-radius: 20px; border: 1px solid rgba(248,249,250,0.2); margin: 40px 0; }
.gallery-section h3 { text-align: center; color: var(--snow); margin-bottom: 30px; font-size: 1.8em; }
.gallery-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(120px, 1fr)); gap: 12px; }
.gallery-grid img { width: 100%; height: auto; border-radius: 6px; border: 1px solid rgba(248,249,250,0.2); }

/* JSON Gallery Section (Dual Source) */
.json-gallery-section {
  background: rgba(248,249,250,0.05);
  padding: 40px;
  border-radius: 20px;
  border: 1px solid rgba(248,249,250,0.2);
  margin: 40px 0;
}
.json-gallery-section h3 {
  text-align: center;
  color: var(--snow);
  margin-bottom: 30px;
  font-size: 1.8em;
}
.json-gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 25px;
}
.json-card {
  background: rgba(248,249,250,0.06);
  border-radius: 12px;
  border: 1px solid rgba(248,249,250,0.2);
  overflow: hidden;
  transition: transform 0.2s, background 0.2s;
}
.json-card:hover {
  transform: translateY(-3px);
  background: rgba(248,249,250,0.1);
}
.json-card-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-bottom: 1px solid rgba(248,249,250,0.2);
  cursor: pointer;
  transition: opacity 0.2s;
}
.json-card-image:hover { opacity: 0.9; }
.json-card-content { padding: 15px; }
.json-card-title {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--snow);
}
.json-card-desc {
  font-size: 0.85rem;
  line-height: 1.6;
  opacity: 0.85;
  font-style: italic;
}

/* Mini Cards */
.card-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 12px; margin: 30px 0; }
.mini-card { display: flex; flex-direction: column; align-items: center; text-align: center; padding: 12px; background: rgba(248,249,250,0.08); border-radius: 10px; border: 1px solid rgba(248,249,250,0.2); color: var(--snow); }
.mini-card:hover { background: rgba(248,249,250,0.15); }
.card-icon { font-size: 1.5rem; margin-bottom: 5px; }
.card-title { font-weight: 600; font-size: 0.9rem; }
.card-desc { font-size: 0.7rem; opacity: 0.8; margin-top: 4px; }

/* Footer */
footer { text-align: center; margin-top: 40px; padding-top: 20px; border-top: 1px solid rgba(248,249,250,0.2); }
.footer-info { font-size: 0.65rem; line-height: 1.8; opacity: 0.8; margin: 15px 0; }
#live-clock { font-size: 0.7rem; margin-top: 10px; letter-spacing: 0.5px; }
.creation-date { font-size: 0.6rem; margin-top: 10px; opacity: 0.7; }