/* ==========================================================================
   Tamron Bangladesh — AI Marketing Resource Hub
   ========================================================================== */
:root{
  --tamron-blue:#0065B3;
  --tamron-blue-dark:#004a85;
  --ink:#14181f;
  --ink-soft:#4b5563;
  --line:#e5e9ef;
  --bg:#f6f8fb;
  --card:#ffffff;
  --radius:14px;
  --shadow:0 2px 10px rgba(20,24,31,.06);
  --shadow-lg:0 10px 30px rgba(20,24,31,.10);
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  color:var(--ink);
  background:var(--bg);
  line-height:1.55;
}
img{max-width:100%;display:block;}
a{color:inherit;}
.container{max-width:1180px;margin:0 auto;padding:0 20px;}
section{padding:56px 0;}
h1,h2,h3{line-height:1.2;margin:0 0 12px;}
h2.section-title{font-size:1.7rem;margin-bottom:6px;}
p.section-sub{color:var(--ink-soft);margin-top:0;margin-bottom:32px;max-width:760px;}

/* ---- Header (NOT sticky, per site requirement) ---- */
.site-header{
  background:#fff;
  border-bottom:1px solid var(--line);
  padding:18px 0;
}
.site-header .inner{
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
}
.brand{display:flex;align-items:center;gap:14px;}
.brand img{height:46px;width:auto;}
.brand .titles h1{font-size:1.05rem;margin:0;color:var(--tamron-blue);}
.brand .titles span{display:block;font-size:.78rem;color:var(--ink-soft);}
.header-cta a{
  display:inline-block;background:var(--tamron-blue);color:#fff;text-decoration:none;
  padding:10px 18px;border-radius:8px;font-size:.88rem;font-weight:600;
}
.header-cta a:hover{background:var(--tamron-blue-dark);}
.subnav{background:#fff;border-bottom:1px solid var(--line);}
.subnav .inner{display:flex;gap:22px;flex-wrap:wrap;padding:10px 0;font-size:.86rem;}
.subnav a{text-decoration:none;color:var(--ink-soft);font-weight:600;}
.subnav a:hover{color:var(--tamron-blue);}

/* ---- Hero ---- */
.hero{background:linear-gradient(135deg,var(--tamron-blue) 0%,var(--tamron-blue-dark) 100%);color:#fff;padding:64px 0;}
.hero h1{font-size:2rem;max-width:820px;}
.hero p{max-width:720px;color:#dbe9f8;font-size:1.05rem;}
.hero .tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.hero .tags span{background:rgba(255,255,255,.15);border:1px solid rgba(255,255,255,.35);padding:6px 14px;border-radius:999px;font-size:.82rem;}

/* ---- AI instructions callout ---- */
.ai-box{
  background:#eef6ff;border:1px solid #c7e0f7;border-radius:var(--radius);
  padding:26px 28px;display:grid;grid-template-columns:1fr;gap:14px;
}
.ai-box h2{color:var(--tamron-blue-dark);font-size:1.2rem;}
.ai-box code, .ai-box .manifest-link{
  display:inline-block;background:#fff;border:1px solid #c7e0f7;border-radius:8px;
  padding:8px 14px;font-family:monospace;font-size:.85rem;margin-top:6px;text-decoration:none;color:var(--tamron-blue-dark);
}
.ai-box ul{margin:6px 0 0;padding-left:20px;color:var(--ink-soft);}

/* ---- Buttons ---- */
.btn{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--tamron-blue);color:#fff;text-decoration:none;
  padding:9px 16px;border-radius:8px;font-size:.85rem;font-weight:600;border:none;cursor:pointer;
}
.btn:hover{background:var(--tamron-blue-dark);}
.btn.secondary{background:#fff;color:var(--tamron-blue);border:1.5px solid var(--tamron-blue);}
.btn.secondary:hover{background:#eef6ff;}
.btn.small{padding:6px 12px;font-size:.78rem;}
.btn.block{width:100%;justify-content:center;}

/* ---- Logo section ---- */
.logo-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:20px;}
.logo-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px;text-align:center;box-shadow:var(--shadow);
}
.logo-card.on-white{background:#fff;}
.logo-card.on-blue .logo-frame{background:var(--tamron-blue);}
.logo-card.on-black .logo-frame{background:#111;}
.logo-frame{
  height:120px;display:flex;align-items:center;justify-content:center;
  border-radius:10px;margin-bottom:14px;padding:14px;
}
.logo-frame img{max-height:70px;}
.missing-tile{
  height:120px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  border-radius:10px;margin-bottom:14px;border:2px dashed #c6cdd8;color:#8a94a3;background:#f8fafc;font-size:.78rem;text-align:center;padding:10px;
}
.logo-card h3{font-size:.95rem;margin-bottom:2px;}
.logo-card p.meta{color:var(--ink-soft);font-size:.78rem;margin:0 0 14px;}

/* ---- Lens cards ---- */
.lens-filter{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:26px;}
.lens-filter button{
  background:#fff;border:1px solid var(--line);border-radius:999px;padding:7px 16px;
  font-size:.8rem;font-weight:600;cursor:pointer;color:var(--ink-soft);
}
.lens-filter button.active{background:var(--tamron-blue);color:#fff;border-color:var(--tamron-blue);}
.lens-grid{display:grid;grid-template-columns:1fr;gap:20px;}
.lens-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);overflow:hidden;
}
.lens-card-head{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;align-items:flex-start;
  padding:20px 22px;border-bottom:1px solid var(--line);
}
.lens-card-head h3{font-size:1.15rem;margin:0;}
.lens-card-head .code{color:var(--tamron-blue);font-weight:700;font-size:.85rem;letter-spacing:.03em;}
.lens-card-head p{margin:6px 0 0;color:var(--ink-soft);font-size:.9rem;max-width:560px;}
.mount-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:8px;}
.mount-tags span{background:#eef2f7;color:var(--ink-soft);font-size:.72rem;padding:3px 9px;border-radius:999px;font-weight:600;}
.lens-card-body{display:grid;grid-template-columns:1fr;gap:0;}
@media(min-width:880px){
  .lens-card-body{grid-template-columns:1.15fr .85fr;}
}
.media-block{padding:20px 22px;border-bottom:1px solid var(--line);}
@media(min-width:880px){ .media-block{border-bottom:none;border-right:1px solid var(--line);} }
.media-block h4{font-size:.82rem;text-transform:uppercase;letter-spacing:.04em;color:var(--ink-soft);margin:0 0 10px;}
.photo-row{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-bottom:18px;}
.sample-row{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;}
.photo-tile,.sample-tile{position:relative;border-radius:10px;overflow:hidden;background:#f0f3f7;aspect-ratio:1/1;}
.photo-tile img,.sample-tile img{width:100%;height:100%;object-fit:cover;}
.photo-tile .dl,.sample-tile .dl{
  position:absolute;bottom:6px;right:6px;background:rgba(0,0,0,.65);color:#fff;
  border-radius:6px;padding:4px 8px;font-size:.68rem;text-decoration:none;font-weight:600;
}
.tile-missing{
  width:100%;height:100%;display:flex;align-items:center;justify-content:center;text-align:center;
  color:#9aa3b1;font-size:.68rem;padding:8px;border:1.5px dashed #ccd3dc;border-radius:10px;background:#f8fafc;
}
.spec-block{padding:20px 22px;}
.spec-block h4{font-size:.82rem;text-transform:uppercase;letter-spacing:.04em;color:var(--ink-soft);margin:0 0 10px;}
.spec-table{width:100%;border-collapse:collapse;font-size:.85rem;}
.spec-table tr{border-bottom:1px solid var(--line);}
.spec-table tr:last-child{border-bottom:none;}
.spec-table td{padding:7px 0;}
.spec-table td:first-child{color:var(--ink-soft);width:46%;}
.spec-table td:last-child{font-weight:600;}
.lens-card-foot{padding:14px 22px;border-top:1px solid var(--line);display:flex;gap:10px;flex-wrap:wrap;}

/* ---- Ads grid ---- */
.ads-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px;}
.ad-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);}
.ad-thumb{aspect-ratio:4/5;background:#f0f3f7;overflow:hidden;}
.ad-thumb img{width:100%;height:100%;object-fit:cover;}
.ad-card .ad-body{padding:14px 16px;}
.ad-card .ad-body p{margin:0 0 10px;font-size:.82rem;color:var(--ink-soft);}

/* ---- generic missing tile (bigger, standalone) ---- */
.missing-big{
  aspect-ratio:4/5;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:6px;border:2px dashed #ccd3dc;border-radius:10px;background:#f8fafc;color:#9aa3b1;
  font-size:.78rem;text-align:center;padding:14px;
}
.missing-big strong{color:#7c8592;font-size:.82rem;}

/* ---- Download-all bar ---- */
.downloadbar{
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px 22px;margin-bottom:30px;
  box-shadow:var(--shadow);
}
.downloadbar .stat{font-size:.85rem;color:var(--ink-soft);}
.downloadbar .stat b{color:var(--ink);}

/* ---- Footer ---- */
.site-footer{background:#0f1420;color:#c6cdd8;padding:44px 0 20px;margin-top:20px;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:28px;margin-bottom:28px;}
@media(min-width:760px){.footer-grid{grid-template-columns:1.3fr 1fr 1fr;}}
.footer-grid h4{color:#fff;font-size:.9rem;margin:0 0 12px;}
.footer-grid p, .footer-grid a{font-size:.85rem;color:#aab3c0;text-decoration:none;line-height:1.9;}
.footer-grid a:hover{color:#fff;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding-top:18px;
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;font-size:.76rem;color:#7c8592;
}
.footer-bottom a{color:#9fb4d1;text-decoration:none;}
.footer-bottom a:hover{text-decoration:underline;}

/* ---- Back to top ---- */
#backToTop{
  position:fixed;right:22px;bottom:22px;background:var(--tamron-blue);color:#fff;
  border:none;width:46px;height:46px;border-radius:50%;font-size:1.2rem;cursor:pointer;
  box-shadow:var(--shadow-lg);display:none;align-items:center;justify-content:center;z-index:999;
}
#backToTop:hover{background:var(--tamron-blue-dark);}

/* ---- misc ---- */
.badge{display:inline-block;background:#eef6ff;color:var(--tamron-blue-dark);font-size:.72rem;font-weight:700;padding:3px 10px;border-radius:999px;margin-bottom:10px;}
.two-col{display:grid;grid-template-columns:1fr;gap:24px;}
@media(min-width:820px){.two-col{grid-template-columns:1fr 1fr;}}
.license-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);}