:root {
  --bg-deep: #17100f;
  --bg-mid: #2a1915;
  --gold: #c99b72;
  --gold-light: #e3c19f;
  --gold-soft: rgba(201,155,114,.20);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
}

body {
  background:
    radial-gradient(circle at 50% 12%, rgba(201,155,114,.18), transparent 30%),
    radial-gradient(circle at 5% 85%, rgba(154,106,71,.14), transparent 28%),
    linear-gradient(135deg, var(--bg-deep) 0%, var(--bg-mid) 48%, #1c1110 100%);
  color: #fff;
  overflow-x: hidden;
  -webkit-tap-highlight-color: transparent;
}

/* 고급스러운 배경 장식 */
body::before,
body::after {
  content: "";
  position: fixed;
  z-index: 0;
  pointer-events: none;
  border: 1px solid rgba(201,155,114,.15);
  border-radius: 50%;
}

body::before {
  width: 62vw;
  height: 62vw;
  min-width: 520px;
  min-height: 520px;
  left: -28vw;
  top: 8vh;
  transform: rotate(-16deg);
}

body::after {
  width: 48vw;
  height: 48vw;
  min-width: 420px;
  min-height: 420px;
  right: -22vw;
  bottom: 4vh;
  transform: rotate(20deg);
}

.page {
  position: relative;
  z-index: 1;
  min-height: 100svh;
  padding: 24px 20px 32px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.header {
  width: min(100%, 1200px);
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
  color: var(--gold-light);
  font: 12px/1.4 Arial, sans-serif;
  letter-spacing: .08em;
}

.counter {
  color: rgba(255,255,255,.65);
  letter-spacing: .12em;
  font-size: 11px;
}

/*
 * 1. PC 초청장 확대
 * 기존 900px -> 최대 1200px.
 * 단, 화면 폭을 넘지 않도록 반응형 유지.
 */
.invitation-wrap {
  width: min(100%, 1200px);
  position: relative;
}

.swiper {
  width: 100%;
  overflow: hidden;
  border-radius: 5px;
  background: #2b1a16;
  box-shadow:
    0 30px 90px rgba(0,0,0,.55),
    0 0 0 1px rgba(201,155,114,.28);
  touch-action: pan-y;
}

.swiper-slide {
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  background: #2b1a16;
}

.invite-image {
  display: block;
  width: 100%;
  height: auto;
  max-width: 1200px;
  user-select: none;
  -webkit-user-drag: none;
}

/* 좌우 이동 버튼 */
.swiper-button-prev,
.swiper-button-next {
  width: 48px;
  height: 48px;
  margin-top: -24px;
  border-radius: 50%;
  background: rgba(31,20,17,.86);
  border: 1px solid rgba(227,193,159,.48);
  box-shadow: 0 8px 24px rgba(0,0,0,.28);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: transform .2s ease, background .2s ease, opacity .2s ease;
}

.swiper-button-prev::after,
.swiper-button-next::after {
  font-size: 16px;
  font-weight: 700;
  color: var(--gold-light);
}

.swiper-button-prev { left: -24px; }
.swiper-button-next { right: -24px; }

.swiper-button-prev:hover,
.swiper-button-next:hover {
  transform: scale(1.08);
  background: rgba(54,34,27,.95);
}

.swiper-button-disabled {
  opacity: .35 !important;
}

.swiper-pagination {
  position: static;
  margin-top: 15px;
}

.swiper-pagination-bullet {
  width: 7px;
  height: 7px;
  opacity: .35;
  background: var(--gold-light);
  transition: .25s ease;
}

.swiper-pagination-bullet-active {
  width: 25px;
  border-radius: 10px;
  opacity: 1;
  background: var(--gold);
}

/*
 * 4. 첫 화면 스와이프 안내
 */
.swipe-guide {
  position: absolute;
  z-index: 10;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
  display: flex;
  align-items: center;
  gap: 13px;
  padding: 12px 19px;
  border: 1px solid rgba(255,255,255,.25);
  border-radius: 999px;
  background: rgba(24,15,13,.78);
  box-shadow: 0 10px 35px rgba(0,0,0,.3);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: rgba(255,255,255,.88);
  font: 11px/1 Arial, sans-serif;
  letter-spacing: .09em;
  white-space: nowrap;
  opacity: 1;
  transition: opacity .5s ease, transform .5s ease;
}

.swipe-guide.is-hidden {
  opacity: 0;
  transform: translate(-50%, -50%) scale(.94);
}

.swipe-guide-arrow {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 18px;
  color: var(--gold-light);
  animation: guideArrow 1.5s ease-in-out infinite;
}

@keyframes guideArrow {
  0%, 100% { transform: translateX(0); opacity: .55; }
  50% { transform: translateX(7px); opacity: 1; }
}

/*
 * 2. 모바일 화면 꽉 채우기
 */
@media (max-width: 600px) {
  .page {
    padding: 0 0 18px;
    min-height: 100svh;
  }

  .header {
    width: 100%;
    margin: 0;
    padding: 8px 11px;
    min-height: 32px;
    background: rgba(20,12,10,.42);
    font-size: 9px;
  }

  .counter {
    font-size: 9px;
  }

  .invitation-wrap {
    width: 100%;
  }

  .swiper {
    width: 100%;
    border-radius: 0;
    box-shadow:
      0 18px 45px rgba(0,0,0,.45),
      0 0 0 1px rgba(201,155,114,.18);
  }

  .invite-image {
    width: 100%;
    max-width: none;
  }

  .swiper-button-prev,
  .swiper-button-next {
    width: 34px;
    height: 34px;
    margin-top: -17px;
  }

  .swiper-button-prev::after,
  .swiper-button-next::after {
    font-size: 12px;
  }

  .swiper-button-prev { left: 7px; }
  .swiper-button-next { right: 7px; }

  .swiper-pagination {
    margin-top: 8px;
  }

  .hint {
    margin-top: 10px;
    color: rgba(255,255,255,.42);
    font: 7px/1.4 Arial, sans-serif;
    letter-spacing: .08em;
    text-align: center;
  }

  .swipe-guide {
    padding: 10px 15px;
    font-size: 9px;
  }

  .swipe-guide-arrow {
    font-size: 16px;
  }
}

@media (min-width: 601px) {
  .hint {
    margin-top: 10px;
    color: rgba(255,255,255,.42);
    font: 9px/1.4 Arial, sans-serif;
    letter-spacing: .08em;
    text-align: center;
  }
}

/* 3. 마우스 휠 이동을 안내하는 커서/상태 */
.invitation-wrap.is-wheel-ready {
  cursor: default;
}

@media (prefers-reduced-motion: reduce) {
  .swipe-guide-arrow {
    animation: none;
  }
}