/* 성지폰 PC 콘텐츠 폭과 동일한 플레이그라운드 상단 */
body {
  background: #fff;
}

.playground {
  width: 100%;
  max-width: 1280px;
  padding-right: 0;
  padding-left: 0;
}

.playground-header {
  display: grid;
  grid-template-columns: 190px minmax(0, 1fr) 230px;
  height: 76px;
  padding: 0 18px;
  border-bottom: 0;
  background: #fff;
}

.primary-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 36px;
}

.primary-nav a {
  position: relative;
  padding: 29px 0 27px;
  color: #333;
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
}

.primary-nav a:hover,
.primary-nav a.active {
  color: var(--primary);
}

.primary-nav a.active:after {
  position: absolute;
  right: 0;
  bottom: 18px;
  left: 0;
  height: 2px;
  background: var(--primary);
  content: "";
}

.header-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 15px;
}

.header-actions a {
  color: #777;
  font-size: 11px;
  text-decoration: none;
}

.header-actions .header-apply {
  padding: 10px 14px;
  border-radius: 5px;
  color: #fff;
  background: var(--primary);
  font-weight: 700;
}

.playground-hero {
  position: relative;
  overflow: hidden;
  width: 100%;
  height: 350px;
  border-radius: 12px;
  color: #fff;
  background:
    radial-gradient(circle at 28% 70%, rgba(67, 105, 255, 0.45), transparent 20%),
    radial-gradient(circle at 75% 25%, rgba(78, 48, 255, 0.2), transparent 24%),
    linear-gradient(115deg, #03050b 0%, #101522 48%, #05060a 100%);
}

.playground-hero:before {
  position: absolute;
  inset: 0;
  opacity: 0.28;
  background-image: linear-gradient(120deg, transparent 47%, rgba(255,255,255,0.09) 48%, transparent 49%);
  background-size: 85px 85px;
  content: "";
}

.hero-copy {
  position: absolute;
  z-index: 2;
  top: 50%;
  left: 56%;
  width: 39%;
  transform: translateY(-50%);
}

.hero-copy > span {
  display: block;
  margin-bottom: 10px;
  color: #aab8ff;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.13em;
}

.hero-copy h2 {
  margin: 0;
  font-size: 38px;
  line-height: 1.25;
}

.hero-copy h2 strong {
  color: var(--lime);
  font-weight: 900;
}

.hero-copy p {
  margin: 14px 0 22px;
  color: #a8aebb;
  font-size: 14px;
}

.hero-copy button {
  min-width: 160px;
  height: 43px;
  padding: 0 18px;
  border: 1px solid rgba(255,255,255,0.68);
  border-radius: 999px;
  color: #fff;
  background: rgba(255,255,255,0.08);
  cursor: pointer;
  font-size: 13px;
  font-weight: 700;
}

.hero-copy button:hover {
  border-color: var(--lime);
  color: var(--lime);
}

.hero-copy button span {
  margin-left: 16px;
  font-size: 20px;
  line-height: 0;
  vertical-align: -1px;
}

.hero-visual {
  position: absolute;
  z-index: 1;
  top: 20px;
  bottom: 0;
  left: 7%;
  width: 44%;
}

.hero-phone {
  position: absolute;
  display: block;
  width: 178px;
  height: 300px;
  border: 2px solid #7b89a6;
  border-radius: 34px;
  background:
    radial-gradient(circle at 27px 32px, #080b12 0 13px, #8390a9 14px 17px, transparent 18px),
    radial-gradient(circle at 63px 32px, #080b12 0 13px, #8390a9 14px 17px, transparent 18px),
    radial-gradient(circle at 27px 68px, #080b12 0 13px, #8390a9 14px 17px, transparent 18px),
    linear-gradient(145deg, #64718c, #171c28 58%, #06080d);
  box-shadow: 0 28px 55px rgba(0,0,0,0.5);
}

.hero-phone-back {
  top: 28px;
  left: 60px;
  opacity: 0.52;
  transform: rotate(-13deg);
}

.hero-phone-front {
  top: 10px;
  left: 205px;
  transform: rotate(12deg);
}

.hero-dots {
  position: absolute;
  z-index: 3;
  bottom: 17px;
  left: 50%;
  display: flex;
  gap: 6px;
  transform: translateX(-50%);
}

.hero-dots span {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: rgba(255,255,255,0.38);
}

.hero-dots span:first-child {
  width: 21px;
  border-radius: 999px;
  background: #fff;
}

.home-screen .intro {
  padding-top: 60px;
}

@media (max-width: 1320px) {
  .playground {
    width: calc(100% - 40px);
  }
}

@media (max-width: 900px) {
  .playground {
    width: 100%;
    padding-right: 18px;
    padding-left: 18px;
  }

  .playground-header {
    display: flex;
    height: 64px;
    padding: 0;
  }

  .primary-nav,
  .header-actions {
    display: none;
  }

  .playground-hero {
    height: 380px;
    border-radius: 10px;
  }

  .hero-copy {
    top: auto;
    right: 24px;
    bottom: 32px;
    left: 24px;
    width: auto;
    transform: none;
  }

  .hero-copy h2 {
    font-size: 30px;
  }

  .hero-visual {
    top: -25px;
    left: 50%;
    width: 360px;
    height: 250px;
    opacity: 0.62;
    transform: translateX(-50%) scale(0.72);
    transform-origin: top center;
  }

  .home-screen .intro {
    padding-top: 45px;
  }
}