:root {
  --campaign-overlay-bg: rgba(6, 12, 24, 0.82);
  --campaign-card-bg: rgba(13, 23, 43, 0.94);
  --campaign-gradient: linear-gradient(135deg, #6d4bff 0%, #10b981 90%);
  --campaign-pill-bg: rgba(148, 163, 235, 0.15);
}

body.campaign-open {
  overflow: hidden;
}

.campaign-overlay {
  position: fixed;
  inset: 0;
  background: var(--campaign-overlay-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px 16px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 160ms ease;
  z-index: 4000;
}

.campaign-overlay.is-visible {
  opacity: 1;
  pointer-events: auto;
}

.campaign-modal {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  gap: 32px;
  max-width: 960px;
  width: min(100%, 960px);
  background: var(--campaign-card-bg);
  border-radius: 28px;
  box-shadow: 0 32px 120px rgba(15, 23, 42, 0.45);
  border: 1px solid rgba(148, 163, 235, 0.25);
  padding: 32px;
  overflow: hidden;
  max-height: min(820px, calc(100vh - 72px));
  align-items: center;
}

.campaign-gradient-ring {
  position: absolute;
  inset: -120px;
  background: radial-gradient(circle at top, rgba(99, 102, 241, 0.25), transparent 60%);
  pointer-events: none;
}

.campaign-visual {
  border-radius: 20px;
  overflow: hidden;
  background: var(--campaign-gradient);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  aspect-ratio: 9 / 16;
  height: 100%;
  max-height: 560px;
}

.campaign-visual::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at top right, rgba(255, 255, 255, 0.35), transparent 60%);
  mix-blend-mode: screen;
}

.campaign-visual picture,
.campaign-visual img {
  width: 100%;
  height: 100%;
  display: block;
}

.campaign-visual img {
  object-fit: cover;
  object-position: center;
}

.campaign-content {
  display: flex;
  flex-direction: column;
  gap: 20px;
  z-index: 1;
  overflow-y: auto;
  max-height: 100%;
}

.campaign-pill {
  align-self: flex-start;
  padding: 8px 16px;
  border-radius: 9999px;
  background: var(--campaign-pill-bg);
  border: 1px solid rgba(148, 163, 235, 0.35);
  color: #cbd5f5;
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.campaign-content h2 {
  margin: 0;
  font-size: clamp(26px, 3vw, 34px);
  color: #f8fafc;
  letter-spacing: -0.02em;
}

.campaign-highlight {
  font-size: 18px;
  color: #cbd5f5;
  line-height: 1.6;
}

.campaign-benefits {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 12px;
}

.campaign-benefits li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  color: #e2e8f0;
  line-height: 1.5;
}

.campaign-benefits li p {
  margin: 0;
  color: inherit;
  font-size: 15px;
  flex: 1;
}

.campaign-benefits li span {
  background: rgba(16, 185, 129, 0.15);
  border: 1px solid rgba(16, 185, 129, 0.35);
  color: #34d399;
  border-radius: 8px;
  padding: 6px 10px;
  font-size: 12px;
  flex-shrink: 0;
}

.campaign-cta {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: auto;
}

.campaign-social-intro {
  margin: 12px 0 -2px;
  font-size: 14px;
  color: #cbd5f5;
  letter-spacing: 0.01em;
}

.campaign-main-btn,
.campaign-secondary-btn,
.campaign-social-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border-radius: 12px;
  font-weight: 600;
  padding: 14px 18px;
  text-decoration: none;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.2s ease;
}

.campaign-main-btn {
  background: var(--campaign-gradient);
  color: #f8fafc;
  box-shadow: 0 16px 40px rgba(99, 102, 241, 0.35);
}

.campaign-main-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 20px 46px rgba(99, 102, 241, 0.45);
}

.campaign-secondary-btn {
  background: rgba(148, 163, 235, 0.12);
  border: 1px solid rgba(148, 163, 235, 0.25);
  color: #cbd5f5;
}

.campaign-secondary-btn:hover {
  background: rgba(148, 163, 235, 0.2);
}

.campaign-social-btn {
  background: rgba(15, 118, 110, 0.16);
  border: 1px solid rgba(13, 148, 136, 0.35);
  color: #5eead4;
}

.campaign-social-btn[data-channel="x"] {
  background: rgba(148, 163, 235, 0.12);
  border-color: rgba(148, 163, 235, 0.35);
  color: #e2e8f0;
}

.campaign-social-btn[data-channel="tiktok"] {
  background: rgba(248, 113, 113, 0.1);
  border-color: rgba(248, 113, 113, 0.35);
  color: #fca5a5;
}

.campaign-social-btn[data-channel="email"] {
  background: rgba(14, 116, 144, 0.16);
  border-color: rgba(14, 165, 233, 0.35);
  color: #7dd3fc;
}

.campaign-social-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 16px 30px rgba(13, 148, 136, 0.25);
}

.campaign-social-btn[data-channel="x"]:hover {
  box-shadow: 0 16px 30px rgba(148, 163, 235, 0.3);
}

.campaign-social-btn[data-channel="tiktok"]:hover {
  box-shadow: 0 16px 30px rgba(248, 113, 113, 0.28);
}

.campaign-social-btn[data-channel="email"]:hover {
  box-shadow: 0 16px 30px rgba(14, 165, 233, 0.28);
}

.campaign-deadline {
  font-size: 13px;
  color: #94a3b8;
  text-align: left;
}

.campaign-close {
  position: absolute;
  top: 18px;
  right: 18px;
  background: rgba(15, 23, 42, 0.4);
  border: 1px solid rgba(148, 163, 235, 0.3);
  border-radius: 9999px;
  color: #94a3b8;
  width: 38px;
  height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  cursor: pointer;
  transition: background 0.2s ease, transform 0.15s ease;
  z-index: 2;
}

.campaign-close:hover {
  background: rgba(148, 163, 235, 0.15);
  color: #f8fafc;
  transform: rotate(8deg);
}

@media (max-width: 960px) {
  .campaign-modal {
    grid-template-columns: 1fr;
    padding: 28px;
    max-height: none;
  }

  .campaign-overlay {
    padding: 24px 12px;
  }

  .campaign-visual {
    order: -1;
    max-height: 280px;
    aspect-ratio: 16 / 9;
    height: auto;
  }
}

@media (max-width: 640px) {
  .campaign-modal {
    width: 100%;
    height: 100%;
    border-radius: 0;
    padding: 20px 18px 28px;
    overflow-y: auto;
    max-width: none;
    max-height: none;
  }

  .campaign-close {
    position: fixed;
    top: 18px;
    right: 18px;
  }

  .campaign-visual {
    max-height: none;
    border-radius: 16px;
    aspect-ratio: 16 / 9;
  }

  .campaign-overlay {
    padding: 0;
  }

  .campaign-content {
    gap: 16px;
  }

  .campaign-pill {
    font-size: 12px;
    padding: 6px 14px;
  }

  .campaign-content h2 {
    font-size: clamp(22px, 6vw, 26px);
  }

  .campaign-highlight {
    font-size: 15px;
    line-height: 1.45;
  }

  .campaign-benefits {
    gap: 10px;
  }

  .campaign-benefits li span {
    padding: 4px 8px;
    font-size: 11px;
  }

  .campaign-benefits li p {
    font-size: 13px;
    line-height: 1.4;
  }

  .campaign-social-intro {
    margin: 10px 0 0;
    font-size: 13px;
  }

  .campaign-main-btn,
  .campaign-secondary-btn,
  .campaign-social-btn {
    padding: 12px 16px;
    font-size: 14px;
  }

  .campaign-deadline {
    font-size: 12px;
  }
}