/* DigitalLife Manuals Center — palette & typography follow the AV202-B manual */
:root {
  --primary: #0f766e;
  --primary-dark: #134e4a;
  --primary-bright: #2dd4bf;
  --bg: #f4faf8;
  --card: #ffffff;
  --text: #1a1a1a;
  --muted: #5b6770;
  --border: #d8e6e2;
  --hover: #e6f7f4;
  --radius: 8px;
}

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

body {
  font-family: 'Lato', Arial, Helvetica, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  font-size: 15px;
}

body::before {
  content: "";
  display: block;
  height: 6px;
  background: linear-gradient(90deg, var(--primary-dark), var(--primary-bright));
}

.container { max-width: 1080px; margin: 0 auto; padding: 0 20px; }

/* Header */
.site-header {
  background: var(--card);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--text); }
.brand-logo {
  width: 36px; height: 36px;
  background: linear-gradient(135deg, var(--primary-dark), var(--primary-bright));
  color: #fff;
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700;
}
.brand-name { font-weight: 700; }
.brand-name small { font-weight: 400; color: var(--muted); margin-left: 6px; }
.site-header nav a { margin-left: 20px; color: var(--muted); text-decoration: none; font-weight: 500; }
.site-header nav a:hover { color: var(--primary); }

/* Hero — gradient card style from the manual */
.hero { padding: 40px 0 36px; text-align: center; }
.hero .container > * {
  max-width: 860px;
  margin-left: auto;
  margin-right: auto;
}
.hero h1 {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary-bright));
  border-radius: 10px;
  padding: 26px 30px;
  margin-bottom: 16px;
  color: #fff;
  font-size: 1.7rem;
  font-weight: 700;
  box-shadow: 0 4px 14px rgba(15, 118, 110, 0.25);
}
.hero p { color: var(--muted); margin-bottom: 24px; }
.search-box { max-width: 480px; }
#search-input {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 1rem;
  font-family: inherit;
  outline: none;
  background: var(--card);
}
#search-input:focus { border-color: var(--primary); box-shadow: 0 2px 6px rgba(15, 118, 110, 0.15); }

/* Products */
.section-title {
  margin: 32px 0 20px;
  font-size: 1.2rem;
  color: var(--primary-dark);
  border-left: 4px solid var(--primary);
  padding-left: 12px;
  border-bottom: none;
}
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}
.product-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: box-shadow 0.22s ease, transform 0.22s ease;
}
.product-card:hover { box-shadow: 0 2px 10px rgba(15, 118, 110, 0.15); transform: translateY(-2px); }
.product-card .category {
  display: inline-block;
  font-size: 0.75rem;
  color: var(--primary);
  background: var(--hover);
  border-radius: 5px;
  padding: 2px 10px;
  margin-bottom: 10px;
}
.product-card h3 { font-size: 1.1rem; margin-bottom: 4px; color: var(--primary-dark); }
.product-card .model { color: var(--muted); font-size: 0.9rem; margin-bottom: 12px; }
.product-card .desc { color: var(--muted); font-size: 0.9rem; margin-bottom: 16px; min-height: 3em; }
.card-actions { display: flex; gap: 10px; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: 6px;
  font-size: 0.9rem;
  text-decoration: none;
  font-weight: 700;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.22s ease;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-outline { background: transparent; color: var(--primary); border-color: var(--primary); }
.btn-outline:hover { background: var(--hover); }

.empty-tip { text-align: center; color: var(--muted); padding: 40px 0; }

/* FAQ */
.faq { padding-bottom: 60px; }
.faq details {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 20px;
  margin-bottom: 12px;
}
.faq summary { cursor: pointer; font-weight: 700; color: var(--primary-dark); }
.faq p { margin-top: 8px; color: var(--muted); }

/* Footer */
.site-footer {
  border-top: 1px solid #b8bec7;
  padding: 24px 0;
  text-align: center;
  color: #444;
  font-size: 13px;
}
.site-footer a { color: var(--primary); text-decoration: none; }
.site-footer a:hover { text-decoration: underline; }

/* ===== Manual viewer page ===== */
.manual-header {
  background: var(--card);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}
.manual-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 60px;
  flex-wrap: wrap;
  padding-top: 8px;
  padding-bottom: 8px;
}
.manual-header .back { color: var(--primary); text-decoration: none; font-weight: 700; }
.manual-header .back:hover { color: var(--primary-dark); }
.manual-header .title { font-weight: 700; flex: 1; text-align: center; color: var(--primary-dark); }
.manual-header .actions { display: flex; gap: 10px; }

.manual-toolbar {
  max-width: 1400px;
  margin: 14px auto 0;
  padding: 0 28px;
  display: flex;
  gap: 8px;
}
.tab-btn {
  padding: 8px 18px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--card);
  color: var(--muted);
  cursor: pointer;
  font-size: 0.9rem;
  font-family: inherit;
  font-weight: 500;
  transition: background 0.22s ease;
}
.tab-btn.active { background: var(--primary); border-color: var(--primary); color: #fff; }

[hidden] { display: none !important; }

.lang-group {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-right: 16px;
}
.lang-group label { font-size: 0.9rem; color: var(--muted); white-space: nowrap; }
.lang-group select {
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--card);
  color: var(--text);
  font-family: inherit;
  font-size: 0.9rem;
  cursor: pointer;
  outline: none;
}
.lang-group select:focus { border-color: var(--primary); }

.manual-body { max-width: 1400px; margin: 0 auto; padding: 14px 28px 40px; }
.html-pane {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.04);
}
.html-pane iframe { width: 100%; height: calc(100vh - 150px); min-height: 560px; border: 0; display: block; }
.pdf-pane { display: none; }
.pdf-pane iframe { width: 100%; height: calc(100vh - 150px); min-height: 560px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--card); }
.pdf-fallback { text-align: center; color: var(--muted); margin-top: 12px; }
.pdf-fallback a { color: var(--primary); }

@media (max-width: 620px) {
  .hero h1 { font-size: 1.2rem; padding: 20px 22px; }
  .manual-header .title { font-size: 0.95rem; }
}