/* ══════════════════════════════════════════
   ADS — banners
══════════════════════════════════════════ */

/* ── BANNER 300×600 ──────────────────────────────────── */

.banner-300x600 {
  width: 100%;
  min-height: 420px;
  background: linear-gradient(160deg, var(--coal-mid) 0%, #0d0c0a 100%);
  border: 1px solid var(--coal-border);
  border-radius: var(--r-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  cursor: pointer;
}
.banner-300x600::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    ellipse at 50% 30%,
    var(--accent-glow),
    transparent 70%
  );
  transition: background var(--t-accent);
}
.banner-label {
  font-family: var(--font-mono);
  font-size: var(--fs-pluto);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--grey-lo);
  position: absolute;
  top: 10px;
  left: 50%;
  transform: translateX(-50%);
  white-space: nowrap;
}
.banner-inner {
  position: relative;
  text-align: center;
  padding: 28px 24px;
}
.banner-icon {
  font-size: var(--fs-supernova);
  display: block;
  margin-bottom: 14px;
}
.banner-title {
  font-family: var(--font-display);
  font-size: var(--fs-mars);
  letter-spacing: 0.06em;
  color: var(--white);
  line-height: 1;
  margin-bottom: 10px;
}
.banner-sub {
  font-size: var(--fs-moon);
  font-weight: 300;
  color: var(--grey-mid);
  line-height: 1.5;
  margin-bottom: 22px;
}
.banner-btn {
  display: inline-block;
  background: var(--accent);
  color: #111;
  font-family: var(--font-mono);
  font-size: var(--fs-pluto);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 11px 22px;
  border-radius: var(--r-sm);
  transition: background var(--t-accent);
}
.banner-300x600:hover .banner-btn {
  background: var(--accent-dim);
}

/* ── HORIZONTAL BANNER ───────────────────────────────── */

.banner-horizontal {
  height: 250px;
  width: 100%;
  margin: 28px 0 var(--gap-xl);
  background: linear-gradient(160deg, var(--coal-mid) 0%, #0d0c0a 100%);
  border: 1px solid var(--coal-border);
  border-radius: var(--r-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 32px;
  padding: 0 40px;
  position: relative;
  overflow: hidden;
  cursor: pointer;
}
.banner-horizontal--empty {
  cursor: default;
  padding: 0;
}
.banner-horizontal--empty img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.35;
}
.banner-horizontal::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    ellipse at 50% 50%,
    var(--accent-glow),
    transparent 70%
  );
  transition: background var(--t-accent);
}
.banner-horizontal .banner-label {
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-mono);
  font-size: var(--fs-pluto);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--grey-lo);
  white-space: nowrap;
}
.banner-horizontal .banner-inner {
  position: relative;
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 0;
  text-align: left;
}
.banner-horizontal .banner-icon {
  font-size: var(--fs-supernova);
  flex-shrink: 0;
}
.banner-horizontal .banner-title {
  font-family: var(--font-display);
  font-size: var(--fs-mars);
  letter-spacing: 0.06em;
  color: var(--white);
  line-height: 1;
  white-space: nowrap;
}
.banner-horizontal .banner-sub {
  font-size: var(--fs-moon);
  font-weight: 300;
  color: var(--grey-mid);
  line-height: 1.4;
  max-width: 320px;
}
.banner-horizontal .banner-btn {
  display: inline-block;
  background: var(--accent);
  color: #111;
  font-family: var(--font-mono);
  font-size: var(--fs-pluto);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 11px 22px;
  border-radius: var(--r-sm);
  white-space: nowrap;
  flex-shrink: 0;
  transition: background var(--t-accent);
}
.banner-horizontal:hover .banner-btn {
  background: var(--accent-dim);
}

/* ── IN-CONTENT AD BANNER (post pages) ──────────────── */

.ad-incontent {
  width: 100%;
  max-width: 720px;
  height: 90px;
  margin: 36px 0;
  background: var(--coal-card);
  border: 1px solid var(--coal-border);
  border-radius: var(--r-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  cursor: pointer;
  transition:
    background var(--t-base),
    border-color var(--t-base);
}
.ad-incontent::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    ellipse at 50% 50%,
    var(--accent-glow),
    transparent 70%
  );
  pointer-events: none;
  transition: background var(--t-accent);
}
.ad-incontent:hover {
  background: var(--coal-hover);
  border-color: var(--grey-lo);
}
.ad-incontent-label {
  position: absolute;
  top: 6px;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-mono);
  font-size: var(--fs-pluto);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--grey-lo);
  white-space: nowrap;
  pointer-events: none;
}
.ad-incontent-inner {
  position: relative;
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 0 24px;
  width: 100%;
}
.ad-incontent-icon {
  font-size: var(--fs-mars);
  flex-shrink: 0;
}
.ad-incontent-text {
  flex: 1;
  min-width: 0;
}
.ad-incontent-title {
  font-family: var(--font-display);
  font-size: var(--fs-earth);
  letter-spacing: 0.06em;
  color: var(--white);
  line-height: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.ad-incontent-sub {
  font-size: var(--fs-pluto);
  font-weight: 300;
  color: var(--grey-mid);
  margin-top: 3px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.ad-incontent-btn {
  flex-shrink: 0;
  background: var(--accent);
  color: #111;
  font-family: var(--font-mono);
  font-size: var(--fs-pluto);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 8px 18px;
  border-radius: var(--r-sm);
  white-space: nowrap;
  transition: background var(--t-accent);
}
.ad-incontent:hover .ad-incontent-btn {
  background: var(--accent-dim);
}
@media (max-width: 640px) {
  .ad-incontent {
    height: 60px;
  }
  .ad-incontent-sub,
  .ad-incontent-icon {
    display: none;
  }
  .ad-incontent-title {
    font-size: var(--fs-mercury);
  }
  .ad-incontent-btn {
    padding: 6px 12px;
    font-size: var(--fs-pluto);
  }
}

/* Filled advertiser banners: image covers the fixed slot, sizes unchanged.
   Desktop slot 250px · mobile ≤640px → 180px (see ui.css). <picture> swaps file. */
.banner-horizontal--filled,
.banner-300x600--filled,
.ad-incontent--filled { padding: 0; }
.banner-horizontal--filled picture {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  z-index: 0;
}
.banner-horizontal--filled img,
.banner-horizontal--filled picture img,
.banner-300x600--filled img,
.ad-incontent--filled img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.banner-horizontal--filled .banner-label {
  z-index: 1;
}