/* ═══════════════════════════════════════════════
   style.css — 우주 모바일 청첩장
   모바일 퍼스트 · 웨딩 감성 (핑크/화이트/로즈)
   ═══════════════════════════════════════════════ */

/* ─── 구글 폰트 ─── */
@import url("https://fonts.googleapis.com/css2?family=Noto+Serif+KR:wght@300;400;600&display=swap");
@import url("https://cdn.jsdelivr.net/gh/orioncactus/pretendard/dist/web/static/pretendard.css");

/* ─── CSS 변수 ─── */
:root {
  --color-bg: #fff5f7;           /* 아주 연한 핑크 배경 */
  --color-surface: #ffffff;
  --color-primary: #e8789a;      /* 핑크 포인트 */
  --color-primary-dark: #c95a7d;
  --color-text: #3d1a28;         /* 진한 로즈 다크 텍스트 */
  --color-text-secondary: #8a4a62;
  --color-text-light: #c490a8;
  --color-border: #f5d0de;
  --color-cover-overlay: rgba(60, 10, 30, 0.15);

  --font-serif: "Noto Serif KR", "Georgia", serif;
  --font-sans: "Pretendard", "Apple SD Gothic Neo", "Noto Sans KR", sans-serif;

  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 4px 24px rgba(200, 80, 120, 0.10);
  --shadow-lg: 0 8px 40px rgba(200, 80, 120, 0.16);

  --section-gap: 72px;
  --container-max: 480px;
  --side-pad: 24px;

  --transition: 0.3s ease;
}

/* ─── 리셋 ─── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  touch-action: pan-x pan-y;
}

body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overscroll-behavior: none;
}

img {
  display: block;
  max-width: 100%;
  -webkit-user-select: none;
  user-select: none;
  -webkit-touch-callout: none;
  height: auto;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
}

ul, ol {
  list-style: none;
}

/* ─── 레이아웃 컨테이너 (데스크톱: 중앙 카드) ─── */
.page-wrapper {
  max-width: var(--container-max);
  margin: 0 auto;
  background: var(--color-surface);
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
  box-shadow: var(--shadow-lg);
}

@media (min-width: 600px) {
  body {
    background: #fad8e4;
    padding: 40px 0;
  }
  .page-wrapper {
    border-radius: var(--radius);
    overflow: hidden;
  }
}

/* ─── 섹션 공통 ─── */
section {
  padding: var(--section-gap) var(--side-pad);
}

.section-title {
  font-family: var(--font-serif);
  font-size: 13px;
  font-weight: 400;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--color-primary);
  text-align: center;
  margin-bottom: 32px;
}

.divider {
  width: 40px;
  height: 1px;
  background: var(--color-primary);
  margin: 20px auto;
  opacity: 0.5;
}

/* ─── 스크롤 애니메이션 ─── */
.fade-up {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
  transition-delay: var(--delay, 0s);
}

.fade-in {
  opacity: 0;
  transition: opacity 0.7s ease;
  transition-delay: var(--delay, 0s);
}

.fade-up.visible,
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ═══════════════════════════════════════════════
   1. 커버 섹션
   ═══════════════════════════════════════════════ */
#section-cover {
  position: relative;
  height: 100svh;
  min-height: 560px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.cover-bg {
  position: absolute;
  inset: 0;
  background: #f5c8d8 url("../images/cover.jpg") center / cover no-repeat;
  transform: scale(1.05);
  transition: transform 6s ease-out;
}

#section-cover.loaded .cover-bg {
  transform: scale(1);
}

.cover-overlay {
  position: absolute;
  inset: 0;
  background: var(--color-cover-overlay);
}

.cover-content {
  position: relative;
  z-index: 1;
  text-align: center;
  color: #fff;
  padding: 0 var(--side-pad);
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 1s ease 0.3s, transform 1s ease 0.3s;
}

.cover-content.loaded {
  opacity: 1;
  transform: translateY(0);
}

.cover-names {
  font-family: var(--font-serif);
  font-size: clamp(32px, 9vw, 48px);
  font-weight: 300;
  letter-spacing: 0.12em;
  line-height: 1.4;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
}

.cover-names .separator {
  font-size: 0.6em;
  opacity: 0.8;
  margin: 0 12px;
}

.cover-date {
  font-size: 13px;
  letter-spacing: 0.2em;
  opacity: 0.9;
  margin-top: 16px;
}

.cover-location-text {
  font-size: 12px;
  letter-spacing: 0.15em;
  opacity: 0.8;
  margin-top: 6px;
}

.cover-countdown {
  display: inline-block;
  margin-top: 20px;
  padding: 6px 18px;
  border: 1px solid rgba(255, 255, 255, 0.6);
  border-radius: 20px;
  font-size: 13px;
  letter-spacing: 0.1em;
  opacity: 0.9;
}

/* 스크롤 화살표 */
.scroll-arrow {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  color: rgba(255, 255, 255, 0.8);
  transition: opacity 0.4s ease;
  animation: bounce 2s ease-in-out infinite;
}

.scroll-arrow svg {
  width: 28px;
  height: 28px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* ═══════════════════════════════════════════════
   2. 초대 문구 섹션
   ═══════════════════════════════════════════════ */
#section-greeting {
  text-align: center;
  background: var(--color-surface);
}

.greeting-title {
  font-family: var(--font-serif);
  font-size: 26px;
  font-weight: 400;
  color: var(--color-text);
  margin-bottom: 24px;
  letter-spacing: 0.05em;
}

#greeting-text {
  color: var(--color-text-secondary);
  font-size: 15px;
  line-height: 2;
  white-space: pre-line;
}

#greeting-text p {
  margin-bottom: 4px;
}

.parents-info {
  margin-top: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

.parents-side {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  font-size: 14px;
  color: var(--color-text-secondary);
}

.parents-label {
  font-size: 11px;
  letter-spacing: 0.15em;
  color: var(--color-primary);
  margin-bottom: 2px;
}

.parents-name {
  font-family: var(--font-serif);
  font-size: 18px;
  color: var(--color-text);
  margin-top: 4px;
}

.parents-divider {
  color: var(--color-primary);
  font-size: 18px;
  align-self: center;
}

.greeting-event-info {
  margin-top: 36px;
  padding: 20px;
  background: var(--color-bg);
  border-radius: var(--radius-sm);
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.9;
}

.greeting-event-info strong {
  color: var(--color-text);
  font-weight: 600;
}

/* ═══════════════════════════════════════════════
   3. 갤러리 섹션
   ═══════════════════════════════════════════════ */
#section-gallery {
  background: var(--color-bg);
  padding-left: 0;
  padding-right: 0;
}

#section-gallery .section-title {
  padding: 0 var(--side-pad);
}

/* ─── 캐러셀 ─── */
.carousel-wrapper {
  position: relative;
  width: 100%;
  margin-bottom: 4px;
}

.carousel-slide-area {
  position: relative;
}

.carousel-track-container {
  overflow: hidden;
  width: 100%;
  cursor: grab;
}

.carousel-track-container:active {
  cursor: grabbing;
}

.carousel-track {
  display: flex;
  transition: transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  will-change: transform;
}

.carousel-slide {
  flex: 0 0 100%;
  width: 100%;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: #111;
}

.carousel-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  pointer-events: none;
  user-select: none;
  -webkit-user-drag: none;
}

/* Arrow buttons */
.carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 2;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.88);
  color: var(--color-text);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.18);
  transition: background var(--transition);
  cursor: pointer;
}

.carousel-btn svg {
  width: 20px;
  height: 20px;
}

.carousel-prev { left: 12px; }
.carousel-next { right: 12px; }

.carousel-btn:hover {
  background: #fff;
}

/* Dots */
.carousel-dots {
  display: flex;
  justify-content: center;
  gap: 6px;
  padding: 12px 0 6px;
}

.carousel-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-border);
  border: none;
  cursor: pointer;
  padding: 0;
  min-width: 7px;
  transition: background var(--transition), transform var(--transition);
}

.carousel-dot.active {
  background: var(--color-primary);
  transform: scale(1.35);
}

/* ─── 썸네일 액자 그리드 ─── */
.gallery-thumbs {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 3px;
  padding: 0 var(--side-pad);
  margin: 0 auto;
}

.gallery-thumb {
  aspect-ratio: 1;
  overflow: hidden;
  cursor: pointer;
  background: var(--color-border);
  position: relative;
}

.gallery-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.3s ease;
}

.gallery-thumb:hover img {
  transform: scale(1.06);
}

/* Active thumbnail: colored border highlight */
.gallery-thumb.active::after {
  content: "";
  position: absolute;
  inset: 0;
  border: 3px solid var(--color-primary);
  pointer-events: none;
  z-index: 1;
}

.gallery-thumb.img-error {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-light);
  font-size: 20px;
}

.gallery-thumb.img-error::before {
  content: "📷";
}

.gallery-thumb.img-error img {
  display: none;
}

/* ═══════════════════════════════════════════════
   4. 장소 섹션
   ═══════════════════════════════════════════════ */
#section-location {
  background: var(--color-surface);
  text-align: center;
}

.location-name {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 400;
  color: var(--color-text);
  margin-bottom: 4px;
}

.location-hall {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-bottom: 8px;
}

.location-address {
  font-size: 13px;
  color: var(--color-text-light);
  margin-bottom: 28px;
}

/* 지도 */
.map-container {
  width: 100%;
  height: 220px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--color-bg);
  margin-bottom: 16px;
}

.map-container .map-fallback {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  background: var(--color-bg);
  color: var(--color-primary);
  font-size: 16px;
  gap: 8px;
  text-decoration: none;
}

/* 지도 앱 버튼 */
.map-buttons {
  display: flex;
  gap: 8px;
  justify-content: center;
  margin-bottom: 32px;
  flex-wrap: wrap;
}

.btn-map {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 16px;
  border-radius: 24px;
  font-size: 13px;
  font-weight: 500;
  border: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  transition: all var(--transition);
  min-height: 44px;
}

.btn-map:hover, .btn-map:active {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

/* 교통 정보 */
.transport-info {
  text-align: left;
  background: var(--color-bg);
  border-radius: var(--radius-sm);
  padding: 20px;
  font-size: 14px;
  color: var(--color-text-secondary);
}

.transport-info h4 {
  font-size: 12px;
  letter-spacing: 0.15em;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.transport-info li {
  padding: 4px 0;
  padding-left: 16px;
  position: relative;
}

.transport-info li::before {
  content: "·";
  position: absolute;
  left: 4px;
  color: var(--color-primary);
}

.parking-info {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--color-border);
  font-size: 13px;
  color: var(--color-text-secondary);
}

/* ═══════════════════════════════════════════════
   5. 계좌 섹션
   ═══════════════════════════════════════════════ */
#section-account {
  background: var(--color-bg);
}

/* 탭 */
.account-tabs {
  display: flex;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 24px;
}

.account-tab {
  flex: 1;
  padding: 12px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-light);
  text-align: center;
  border-bottom: 2px solid transparent;
  transition: all var(--transition);
  cursor: pointer;
  min-height: 44px;
}

.account-tab.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.account-panel {
  display: none;
}

.account-panel.active {
  display: block;
}

.account-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  background: var(--color-surface);
  border-radius: var(--radius-sm);
  margin-bottom: 10px;
  box-shadow: var(--shadow);
}

.account-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.account-bank {
  font-size: 12px;
  color: var(--color-text-light);
  letter-spacing: 0.05em;
}

.account-holder {
  font-weight: 600;
  font-size: 15px;
  color: var(--color-text);
}

.account-number {
  font-size: 14px;
  color: var(--color-text-secondary);
  letter-spacing: 0.05em;
}

.btn-copy {
  padding: 8px 16px;
  background: var(--color-primary);
  color: #fff;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 500;
  transition: background var(--transition);
  min-height: 36px;
  min-width: 52px;
}

.btn-copy:hover, .btn-copy:active {
  background: var(--color-primary-dark);
}

/* ═══════════════════════════════════════════════
   6. 버스 & RSVP 섹션
   ═══════════════════════════════════════════════ */
#section-bus {
  background: var(--color-surface);
  text-align: center;
}

.bus-info-text {
  font-size: 15px;
  color: var(--color-text-secondary);
  margin-bottom: 24px;
}

.bus-routes {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 20px;
  text-align: left;
}

.bus-route {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  background: var(--color-bg);
  border-radius: var(--radius-sm);
}

.bus-icon {
  font-size: 24px;
  flex-shrink: 0;
}

.bus-detail {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.bus-detail strong {
  font-size: 15px;
  color: var(--color-text);
}

.bus-detail span {
  font-size: 13px;
  color: var(--color-text-secondary);
}

.bus-note {
  font-size: 13px;
  color: var(--color-text-light);
  margin-bottom: 24px;
}

#section-rsvp {
  background: var(--color-bg);
  text-align: center;
}

.rsvp-desc {
  font-size: 15px;
  color: var(--color-text-secondary);
  margin-bottom: 8px;
}

.rsvp-deadline {
  font-size: 13px;
  color: var(--color-text-light);
  margin-bottom: 28px;
}

/* ─── 공통 버튼 ─── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  max-width: 320px;
  padding: 16px 24px;
  background: var(--color-primary);
  color: #fff;
  border-radius: 48px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.05em;
  transition: all var(--transition);
  min-height: 52px;
  box-shadow: 0 4px 16px rgba(232, 120, 154, 0.40);
}

.btn-primary:hover, .btn-primary:active {
  background: var(--color-primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(232, 120, 154, 0.50);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  max-width: 320px;
  padding: 15px 24px;
  border: 1.5px solid var(--color-primary);
  color: var(--color-primary);
  border-radius: 48px;
  font-size: 15px;
  font-weight: 500;
  transition: all var(--transition);
  min-height: 52px;
}

.btn-outline:hover, .btn-outline:active {
  background: var(--color-primary);
  color: #fff;
}

/* ═══════════════════════════════════════════════
   7. 푸터
   ═══════════════════════════════════════════════ */
footer {
  background: #3d1a28;
  color: rgba(255, 255, 255, 0.8);
  text-align: center;
  padding: 48px var(--side-pad) 56px;
}

.footer-names {
  font-family: var(--font-serif);
  font-size: 18px;
  color: #fff;
  letter-spacing: 0.1em;
  margin-bottom: 28px;
}

.share-buttons {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin-bottom: 32px;
  flex-wrap: wrap;
}

.btn-share {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: 48px;
  font-size: 14px;
  font-weight: 500;
  transition: all var(--transition);
  min-height: 44px;
  cursor: pointer;
}

.btn-share-kakao {
  background: #FEE500;
  color: #3c1e1e;
}

.btn-share-kakao:hover {
  background: #f5dc00;
}

.btn-share-link {
  background: rgba(255,255,255,0.12);
  color: #fff;
  border: 1px solid rgba(255,255,255,0.2);
}

.btn-share-link:hover {
  background: rgba(255,255,255,0.2);
}

.footer-copy {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.35);
  letter-spacing: 0.05em;
}

/* ─── 토스트 알림 ─── */
#toast {
  position: fixed;
  bottom: 80px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: rgba(30, 20, 10, 0.85);
  color: #fff;
  padding: 12px 24px;
  border-radius: 24px;
  font-size: 14px;
  white-space: nowrap;
  z-index: 999;
  opacity: 0;
  transition: opacity 0.3s ease, transform 0.3s ease;
  pointer-events: none;
  backdrop-filter: blur(8px);
}

#toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ─── 버전 선택 페이지 (루트 index.html) ─── */
.version-select-page {
  min-height: 100svh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg);
  padding: var(--side-pad);
}

.version-card {
  width: 100%;
  max-width: 380px;
  background: var(--color-surface);
  border-radius: var(--radius);
  padding: 48px var(--side-pad);
  text-align: center;
  box-shadow: var(--shadow-lg);
}

.version-card .cover-flower {
  font-size: 32px;
  margin-bottom: 20px;
}

.version-card h1 {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 400;
  color: var(--color-text);
  margin-bottom: 8px;
  letter-spacing: 0.05em;
}

.version-card .version-date {
  font-size: 13px;
  color: var(--color-text-light);
  letter-spacing: 0.1em;
  margin-bottom: 40px;
}

.version-buttons {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.version-btn {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: 18px 22px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  text-align: left;
  transition: all var(--transition);
  cursor: pointer;
  background: none;
  width: 100%;
  font-family: inherit;
}

.version-btn:hover, .version-btn:active {
  border-color: var(--color-primary);
  background: rgba(184, 154, 106, 0.05);
}

.version-btn-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 4px;
}

.version-btn-desc {
  font-size: 13px;
  color: var(--color-text-light);
}

/* ─── 접근성 ─── */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

/* ─── 미디어쿼리 ─── */
@media (max-width: 360px) {
  :root {
    --side-pad: 16px;
    --section-gap: 56px;
  }

  .cover-names {
    font-size: 28px;
  }

  .gallery-thumbs {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .fade-up, .fade-in {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .cover-bg {
    transform: none;
    transition: none;
  }
  .scroll-arrow {
    animation: none;
  }
  .carousel-track {
    transition: none;
  }
}