.birthday-next-page {
  min-height: 100vh;
  color: #f5f8fc;
  background: #05060a;
}

.birthday-next-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  padding: 12px clamp(18px, 5vw, 72px);
  border-bottom: 1px solid rgba(255,255,255,.13);
}

.birthday-next-header img { width: 190px; height: auto; }
.birthday-next-header > a:last-child { color: #73e6ff; font-weight: 800; }

.birthday-next-main {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, 560px);
  gap: clamp(28px, 6vw, 86px);
  align-items: center;
  min-height: calc(100vh - 72px);
  padding: clamp(42px, 7vw, 96px) clamp(18px, 6vw, 90px);
  background:
    linear-gradient(90deg, rgba(5,6,10,.94) 0%, rgba(5,6,10,.8) 45%, rgba(5,6,10,.64) 100%),
    url("/assets/games/gameedu/kids-nex-playground-group.webp") center/cover fixed;
}

.birthday-next-copy { max-width: 760px; }
.birthday-next-copy h1 { margin: 10px 0 18px; font-size: clamp(3.2rem, 8vw, 7.4rem); line-height: .88; letter-spacing: -.06em; }
.birthday-next-lede { max-width: 650px; color: #d4e0eb; font-size: clamp(1.15rem, 2vw, 1.55rem); }
.birthday-next-copy ul { display: grid; gap: 10px; margin: 28px 0 0; padding: 0; list-style: none; color: #aebed0; }
.birthday-next-copy li::before { content: "✓"; margin-right: 10px; color: #73e6ff; font-weight: 900; }

.birthday-next-card {
  padding: clamp(24px, 5vw, 44px);
  border: 1px solid rgba(255,255,255,.16);
  border-radius: 18px;
  background: rgba(7,16,27,.94);
  box-shadow: 0 28px 90px rgba(0,0,0,.4);
  backdrop-filter: blur(12px);
}

.birthday-next-card h2 { margin: 7px 0 24px; font-size: clamp(1.8rem, 4vw, 2.8rem); line-height: 1; }
.birthday-next-card form { display: grid; gap: 15px; }
.birthday-next-card label { display: grid; gap: 7px; color: #c5d2df; font-size: .86rem; font-weight: 800; }
.birthday-next-card fieldset { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; padding: 0; border: 0; }
.birthday-next-card legend { margin-bottom: 7px; color: #c5d2df; font-size: .86rem; font-weight: 800; }
.birthday-next-card input,
.birthday-next-card select { width: 100%; min-height: 48px; padding: 10px 12px; border: 1px solid #34495f; border-radius: 8px; color: #fff; background: #0b1725; font: inherit; }
.birthday-next-card button,
.birthday-next-button { display: inline-flex; align-items: center; justify-content: center; min-height: 50px; padding: 0 22px; border: 0; border-radius: 8px; color: #031018; background: #73e6ff; font: inherit; font-weight: 900; cursor: pointer; }
.birthday-next-consent { grid-template-columns: auto 1fr; align-items: start; }
.birthday-next-consent input { width: 20px; min-height: 20px; margin-top: 2px; }
.birthday-next-honeypot { position: absolute; left: -10000px; }
#birthday-next-status { min-height: 22px; margin: 0; color: #ffadb4; font-size: .86rem; }

@media (max-width: 900px) {
  .birthday-next-main { grid-template-columns: 1fr; background-attachment: scroll; }
  .birthday-next-copy h1 { font-size: clamp(3rem, 17vw, 5.5rem); }
}