:root {
  --congress-bg: radial-gradient(circle at top right, #ffe7cd 0%, #fff6ea 40%, #fff 100%);
}

.congress-hero {
  padding: 34px 0 24px;
  background: var(--congress-bg);
}

.congress-hero-grid {
  display: grid;
  gap: 20px;
  align-items: center;
}

.congress-badge {
  display: inline-block;
  padding: 8px 16px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: #fff8ef;
  font-size: 0.84rem;
  font-weight: 800;
  color: var(--brand-dark);
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.congress-title {
  margin-top: 10px;
  font-size: clamp(1.8rem, 5vw, 2.8rem);
  color: var(--brand-dark);
  text-transform: capitalize;
}

.congress-subtitle {
  margin: 14px 0 0;
  color: var(--ink-soft);
  line-height: 1.65;
  font-size: 1rem;
  max-width: 680px;
}

.speakers {
  padding: 18px 0 14px;
}

.speakers .section-subtitle {
  margin: 6px 0 0;
  font-size: 0.9rem;
  color: var(--ink-soft);
}

.hero-visual {
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  max-width: 420px;
  padding: 8px;
  position: relative;
}

.hero-visual::before {
  content: "";
  position: absolute;
  inset: 8%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(230, 145, 50, 0.22) 0%, rgba(255, 244, 231, 0.5) 45%, transparent 72%);
  z-index: 0;
}

.hero-visual-img {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 380px;
  aspect-ratio: 1 / 1;
  object-fit: contain;
  display: block;
  filter: drop-shadow(0 16px 32px rgba(31, 36, 45, 0.16));
}

.speakers-grid {
  display: grid;
  gap: 16px;
}

.speaker-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 8px 20px rgba(31, 36, 45, 0.08);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.speaker-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(31, 36, 45, 0.12);
}

.speaker-image {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  background: #fff9f1;
}

.speaker-body {
  padding: 14px;
}

.speaker-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.speaker-name {
  margin: 0;
  font-size: 1.07rem;
  color: var(--brand-dark);
}

.speaker-tag {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 0.74rem;
  font-weight: 700;
  color: var(--brand-dark);
  background: #fff8ef;
  border: 1px solid rgba(230, 145, 50, 0.28);
  white-space: nowrap;
}

.speaker-slot {
  margin: 6px 0 0;
  font-size: 0.84rem;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.4;
}

.speaker-topic-label {
  margin: 10px 0 0;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--brand-dark);
}

.speaker-topic {
  margin: 4px 0 0;
  font-size: 0.95rem;
  line-height: 1.5;
  color: var(--ink);
}

.social-follow {
  padding: 8px 0 18px;
}

.social-follow-card {
  padding: 20px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, #ffffff 0%, #fff8ef 100%);
  box-shadow: 0 8px 20px rgba(31, 36, 45, 0.08);
}

.social-follow-title {
  margin: 0;
  font-size: clamp(1.25rem, 3.5vw, 1.55rem);
  color: var(--brand-dark);
  line-height: 1.3;
}

.social-follow-lead {
  margin: 10px 0 0;
  color: var(--ink-soft);
  font-size: 0.95rem;
  line-height: 1.55;
}

.social-benefits {
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 6px;
}

.social-benefits li {
  position: relative;
  padding-left: 22px;
  font-size: 0.92rem;
  color: var(--ink);
  line-height: 1.45;
}

.social-benefits li::before {
  content: "✔";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--brand);
  font-size: 0.82rem;
  font-weight: 800;
}

.social-links {
  margin-top: 16px;
  display: grid;
  gap: 10px;
}

.social-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border: 1px solid rgba(230, 145, 50, 0.25);
  border-radius: 12px;
  background: #fff;
  color: var(--ink);
  text-decoration: none;
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.social-link:hover {
  transform: translateY(-1px);
  border-color: var(--brand);
  box-shadow: 0 6px 16px rgba(230, 145, 50, 0.18);
}

.social-icon {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
  color: var(--brand-dark);
}

.social-meta {
  display: grid;
  gap: 2px;
  min-width: 0;
}

.social-meta strong {
  font-size: 0.9rem;
  color: var(--brand-dark);
}

.social-meta span {
  font-size: 0.86rem;
  color: var(--ink-soft);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.social-thanks {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--brand-dark);
  text-align: center;
}

.campaign-register {
  padding-top: 10px;
}

.campaign-register .register-grid {
  grid-template-columns: 1fr;
  gap: 18px;
}

.register-info .lead {
  max-width: none;
}

.register-points {
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}

.register-points li {
  color: var(--ink-soft);
  font-size: 0.95rem;
}

.register-points li::before {
  content: "•";
  margin-right: 8px;
  color: var(--brand-dark);
}

.field-hint {
  margin: -2px 0 8px;
  padding: 8px 10px;
  font-size: 0.84rem;
  line-height: 1.5;
  color: var(--brand-dark);
  background: #fff8ef;
  border-left: 3px solid var(--brand);
  border-radius: 0 8px 8px 0;
}

.whatsapp-groups {
  margin-top: 28px;
  padding: 20px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, #ffffff 0%, #fff8ef 100%);
  box-shadow: 0 8px 20px rgba(31, 36, 45, 0.08);
}

.whatsapp-title {
  margin: 0;
  font-size: clamp(1.15rem, 3vw, 1.45rem);
  color: var(--brand-dark);
}

.whatsapp-lead {
  margin: 8px 0 0;
  font-size: 0.94rem;
  line-height: 1.55;
  color: var(--ink-soft);
}

.whatsapp-picker {
  margin-top: 16px;
  display: grid;
  grid-template-columns: minmax(148px, 220px) 1fr;
  gap: 16px;
  align-items: stretch;
}

.whatsapp-countries {
  display: flex;
  flex-direction: column;
  gap: 6px;
  max-height: 300px;
  overflow-y: auto;
  padding-right: 2px;
}

.whatsapp-country-btn {
  width: 100%;
  padding: 9px 12px;
  border: 1px solid rgba(230, 145, 50, 0.25);
  border-radius: 8px;
  background: #fff;
  text-align: left;
  font: inherit;
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--ink);
  cursor: pointer;
  appearance: none;
  transition: border-color 0.2s ease, background 0.2s ease, color 0.2s ease;
}

.whatsapp-country-btn:hover,
.whatsapp-country-btn.is-active {
  border-color: var(--brand);
  background: #fff8ef;
  color: var(--brand-dark);
}

.whatsapp-country-btn:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 2px;
}

.whatsapp-preview {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  min-height: 260px;
}

.whatsapp-preview img {
  width: 100%;
  max-width: 240px;
  aspect-ratio: 1 / 1;
  object-fit: contain;
  display: block;
}

.whatsapp-preview-label {
  margin: 10px 0 0;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--brand-dark);
  text-align: center;
}

.whatsapp-hint {
  margin: 14px 0 0;
  padding: 8px 12px;
  border-radius: 8px;
  background: rgba(230, 145, 50, 0.1);
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--brand-dark);
  text-align: center;
}

.congress-success-card .bookmark-title {
  color: #1a7f37;
}

.congress-success-lead {
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--brand-dark);
}

.congress-success-secondary {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid rgba(0, 0, 0, 0.08);
  font-size: 0.9rem;
  color: #666;
}

.btn.disabled,
.btn[aria-disabled="true"] {
  opacity: 0.6;
  cursor: not-allowed;
  pointer-events: none;
}

@media (min-width: 768px) {
  .congress-hero-grid {
    grid-template-columns: 1.15fr 0.85fr;
    gap: 32px;
    align-items: center;
  }

  .hero-visual {
    max-width: 460px;
    justify-self: end;
  }

  .hero-visual-img {
    max-width: 420px;
  }

  .speakers-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
  }

  .social-follow-card {
    padding: 24px 28px;
  }

  .social-benefits {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 20px;
  }

  .social-links {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
  }

  .whatsapp-groups {
    padding: 24px 28px;
  }

  .whatsapp-preview img {
    max-width: 260px;
  }
}

@media (max-width: 767px) {
  .congress-hero {
    padding-top: 24px;
    padding-bottom: 8px;
  }

  .congress-hero-grid {
    gap: 16px;
  }

  .hero-visual {
    max-width: 300px;
    margin-top: 4px;
  }

  .hero-visual-img {
    max-width: 280px;
  }

  .speakers {
    padding-top: 8px;
  }

  .social-follow {
    padding-bottom: 12px;
  }

  .social-follow-card {
    padding: 16px 14px;
  }

  .social-link {
    padding: 11px 12px;
  }

  .whatsapp-groups {
    padding: 16px 14px;
  }

  .whatsapp-picker {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .whatsapp-countries {
    flex-direction: row;
    flex-wrap: wrap;
    max-height: none;
    gap: 8px;
  }

  .whatsapp-country-btn {
    width: auto;
    flex: 1 1 calc(50% - 4px);
    min-width: 0;
    padding: 8px 8px;
    font-size: 0.8rem;
    text-align: center;
  }

  .whatsapp-preview {
    min-height: auto;
    padding: 14px 12px;
  }

  .whatsapp-preview img {
    max-width: 200px;
  }
}