/* BTB Ads: professional native sponsored placement without taking over the Social feed. */
.btb-native-ad{background:#fff;color:#172b43;border:1px solid #d9e3f0;border-radius:16px;overflow:hidden;margin:13px 0;box-shadow:0 3px 12px rgba(13,31,57,.045);max-width:680px;min-width:0}
.btb-native-ad-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:13px 16px 10px;color:#4b5f77;font-size:12px;font-weight:750;line-height:1.4}
.btb-native-ad-header-tools{display:flex;align-items:center;gap:10px;min-width:0}
.btb-native-ad-head small{font-size:12px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:140px}
.btb-native-ad .btb-ad-next{border:1px solid #b6cde4;border-radius:9px;background:#eef5fc;color:#174978;min-width:54px;min-height:32px;padding:5px 9px;font-size:12px;font-weight:800;cursor:pointer;touch-action:manipulation}
.btb-native-ad .btb-ad-next:focus-visible{outline:3px solid #4b99e2;outline-offset:2px}
.btb-native-ad-media{width:100%;max-height:300px;object-fit:contain;background:#0e1728;display:block}
.btb-native-ad-body{padding:8px 16px 16px}
.btb-native-ad-body strong{display:block;font-size:clamp(16px,1.5vw,19px);line-height:1.3;color:#17324f}
.btb-native-ad-body p{color:#496077;font-size:14px;line-height:1.45;margin:7px 0 13px}
.btb-native-ad-body a{display:inline-flex;align-items:center;justify-content:center;background:#164477;color:white!important;padding:9px 16px;min-height:39px;border-radius:10px;text-decoration:none;font-weight:800;font-size:13px}
.btb-native-ad[hidden]{display:none!important}
@media(max-width:600px){.btb-native-ad{margin:10px 0;border-radius:12px}.btb-native-ad-head{padding:10px 12px 7px}.btb-native-ad-body{padding:7px 12px 13px}.btb-native-ad-media{max-height:210px}.btb-native-ad-body strong{font-size:17px}.btb-native-ad-body p{font-size:13px}.btb-native-ad-head small{max-width:110px}}

/* BTB Social: compact, touch-friendly controls for live approved ad rotation. */
.btb-native-ad-head{align-items:center;flex-wrap:wrap}
.btb-native-ad-header-tools{display:flex;gap:9px;align-items:center;margin-left:auto}
.btb-native-ad-header-tools small{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:145px}
.btb-ad-next{font:inherit;font-size:12px;font-weight:750;color:#123b66;background:#eef6ff;border:1px solid #a9c8e9;border-radius:999px;cursor:pointer;min-height:34px;padding:5px 12px;touch-action:manipulation}
.btb-ad-next:focus-visible{outline:3px solid #528bd2;outline-offset:2px}
.btb-native-ad-body p{overflow-wrap:anywhere}
.btb-native-ad-body a{min-height:42px;align-items:center;justify-content:center}
@media(max-width:600px){
 .btb-native-ad-head{padding:11px 13px;gap:7px}
 .btb-native-ad-body strong{font-size:17px}
 .btb-native-ad-body p{font-size:13px;margin:6px 0 11px}
 .btb-ad-next{font-size:12px;min-height:36px}
}

/* Compact the BTB Social in-feed sponsorship on iPhones only.
   Preserve sponsored disclosure, advertiser, CTA, Next and original media. */
@media(max-width:600px){
 #btb-social-sponsored .btb-native-ad{
  margin:8px 0;border-radius:12px;max-width:100%;box-sizing:border-box;
 }
 #btb-social-sponsored .btb-native-ad-head{
  flex-wrap:nowrap;gap:6px;padding:9px 10px 4px;font-size:11px;
 }
 #btb-social-sponsored .btb-native-ad-head>span{white-space:nowrap;flex:0 0 auto}
 #btb-social-sponsored .btb-native-ad-header-tools{
  margin-left:auto;min-width:0;gap:6px;
 }
 #btb-social-sponsored .btb-native-ad-header-tools small{
  font-size:11px;min-width:0;max-width:min(23vw,95px);
 }
 #btb-social-sponsored .btb-ad-next{
  padding:5px 8px;min-width:47px;min-height:34px;
 }
 #btb-social-sponsored .btb-native-ad-body{padding:5px 11px 11px}
 #btb-social-sponsored .btb-native-ad-body strong{font-size:15px;line-height:1.3}
 #btb-social-sponsored .btb-native-ad-body p{
  font-size:12px;line-height:1.4;margin:5px 0 9px;
  display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:3;overflow:hidden;
 }
 #btb-social-sponsored .btb-native-ad-body a{
  min-height:38px;padding:7px 12px;font-size:12px;
 }
 #btb-social-sponsored .btb-native-ad-media{max-height:180px}
}


/* Creative-led BTB Ads 2026. No sponsored card takes over the feed. */
.btb-native-ad{
  background:#101d30;color:#eaf3ff;border:1px solid #35516d;
  border-radius:21px;box-shadow:0 12px 32px rgba(1,9,24,.2);
  max-width:680px;overflow:hidden
}
.btb-native-ad-head{padding:13px 15px;background:#101d30;min-height:65px;flex-wrap:nowrap}
.btb-ad-identity{display:flex;align-items:center;gap:10px;min-width:0;flex:1}
.btb-ad-avatar{display:grid;place-items:center;flex:0 0 42px;width:42px;height:42px;
  border-radius:13px;background:linear-gradient(135deg,#66b7ff,#6555ea);color:white;
  font-size:19px;font-weight:900;box-shadow:inset 0 0 0 1px #ffffff37}
.btb-ad-identity-text{display:grid;min-width:0;gap:2px}
.btb-ad-identity-text strong{font-size:14px;letter-spacing:-.01em;line-height:1.22;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:#fff}
.btb-ad-identity-text small{font-size:11px;line-height:1.3;color:#afc5df}
.btb-native-ad .btb-ad-next{border:1px solid #6085ab;border-radius:999px;
  background:#1b324b;color:#e8f6ff;min-height:37px;font-size:12px;font-weight:750}
.btb-ad-creative{position:relative;overflow:hidden;background:#0e1b2e}
.btb-ad-image,.btb-ad-video{display:grid;place-items:center}
.btb-ad-creative .btb-native-ad-media{display:block;width:100%;height:auto;max-height:460px;
  min-height:0;object-fit:contain;background:linear-gradient(145deg,#172b43,#0b1627)}
.btb-ad-art{min-height:238px;padding:25px 27px;
  display:flex;flex-direction:column;justify-content:space-between;gap:18px;
  background:radial-gradient(circle at 89% 11%,#865dff55,transparent 44%),
   radial-gradient(circle at 0 96%,#24aaff48,transparent 42%),linear-gradient(130deg,#11365d,#162144 52%,#111b34)}
.btb-ad-art:after{content:"";position:absolute;width:185px;height:185px;right:-55px;bottom:-104px;
  border-radius:50%;border:28px solid #ffffff13;pointer-events:none}
.btb-ad-art-glow{position:absolute;inset:auto 10% -65% auto;width:220px;height:220px;
  filter:blur(55px);background:#3897ff4a;pointer-events:none}
.btb-ad-art-label{position:relative;z-index:1;max-width:100%;font-size:11px;
  letter-spacing:.13em;color:#b9dbff;font-weight:850;overflow-wrap:anywhere}
.btb-ad-art>strong{position:relative;z-index:1;max-width:90%;color:#fff;
  font-size:clamp(23px,4vw,34px);line-height:1.13;letter-spacing:-.04em;text-wrap:balance}
.btb-ad-art-bottom{position:relative;z-index:1;font-size:11px;color:#d0dffe;display:flex;gap:8px;align-items:center}
.btb-ad-art-dot{width:8px;height:8px;background:#52d8b3;border-radius:50%;flex:0 0 auto}
.btb-native-ad-body{display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:15px 17px 17px;background:#101d30}
.btb-ad-copy{min-width:0;flex:1}
.btb-native-ad-body strong{font-size:16px;font-weight:850;line-height:1.25;color:#f5f9ff}
.btb-native-ad-body p{font-size:13px;line-height:1.42;color:#bacce0;margin:5px 0 0;overflow-wrap:anywhere}
.btb-ad-text-only .btb-ad-copy strong{display:none}
.btb-native-ad-body .btb-ad-action{display:inline-flex;gap:10px;align-items:center;
  background:#4b9cf1;color:#061b34!important;border-radius:999px;min-height:43px;
  padding:10px 17px;font-size:13px;font-weight:850;white-space:nowrap;text-align:center;
  box-shadow:0 4px 10px #00000018;flex:0 0 auto}
.btb-ad-action span{font-size:17px;font-weight:600}
.btb-native-ad:focus-within{border-color:#68adf5}
@media(max-width:600px){
  .btb-native-ad{border-radius:17px;max-width:100%;margin:12px 0}
  #btb-social-sponsored .btb-native-ad-head,.btb-native-ad-head{padding:11px 12px;min-height:60px;gap:8px}
  .btb-ad-avatar{width:38px;height:38px;flex-basis:38px;border-radius:12px}
  .btb-ad-identity-text strong{font-size:13px}
  .btb-ad-identity-text small{font-size:10px}
  #btb-social-sponsored .btb-ad-next,.btb-native-ad .btb-ad-next{min-height:36px;min-width:54px;padding:6px 11px}
  #btb-social-sponsored .btb-native-ad-media,.btb-ad-creative .btb-native-ad-media{max-height:380px}
  .btb-ad-art{min-height:205px;padding:20px}
  .btb-ad-art>strong{font-size:clamp(22px,5.8vw,28px)}
  #btb-social-sponsored .btb-native-ad-body,.btb-native-ad-body{padding:12px;align-items:flex-start;gap:9px}
  .btb-native-ad-body .btb-ad-action{min-height:40px;padding:9px 12px;font-size:12px}
  #btb-social-sponsored .btb-native-ad-body p,.btb-native-ad-body p{font-size:12px;line-height:1.38;
    display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:3;overflow:hidden;margin:3px 0 0}
}
@media(max-width:350px){
 .btb-native-ad-body{flex-wrap:wrap}
 .btb-native-ad-body .btb-ad-action{width:100%;justify-content:center}
}
@media(prefers-reduced-motion:reduce){.btb-native-ad *{scroll-behavior:auto}}
/* Trust mark: apply BTB's real logo only to verified BTB-owned campaigns. */
.btb-native-ad .btb-ad-avatar-house {
 overflow:hidden!important;padding:0!important;
 border-radius:50%!important;background:#081527!important;
 border:1px solid rgba(203,224,255,.26)!important;
}
.btb-native-ad .btb-ad-avatar-house img {
 display:block!important;width:100%!important;height:100%!important;
 border-radius:50%!important;object-fit:cover!important;
}