@import url("https://fonts.googleapis.com/css2?family=Gaegu:wght@400;700&family=Gowun+Dodum&display=swap");

:root {
  color-scheme: light;
  --ink: #2b2233;
  --muted: #7a637f;
  --accent: #ff8ab3;
  --accent-dark: #f06a9a;
  --card: #fff9fb;
  --bubble: rgba(255, 138, 179, 0.18);
  --shadow: 0 24px 50px rgba(43, 34, 51, 0.14);
  --stroke: rgba(255, 138, 179, 0.35);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

[hidden] {
  display: none !important;
}

body {
  min-height: 100vh;
  font-family: "Gowun Dodum", "Apple SD Gothic Neo", sans-serif;
  background:
    radial-gradient(circle at 20% 20%, #ffe3f1 0%, transparent 40%),
    radial-gradient(circle at 80% 0%, #dff6ff 0%, transparent 42%),
    radial-gradient(circle at 70% 80%, #fff1cc 0%, transparent 40%),
    linear-gradient(135deg, #fff7fb 0%, #f2f4ff 60%, #fef1f7 100%);
  color: var(--ink);
  padding: 0;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image: radial-gradient(var(--bubble) 1px, transparent 1px);
  background-size: 18px 18px;
  opacity: 0.4;
  pointer-events: none;
  z-index: 0;
}

.container {
  max-width: 720px;
  width: min(720px, 100%);
  margin: 0 auto;
  padding: 28px;
  padding-left: max(18px, env(safe-area-inset-left));
  padding-right: max(18px, env(safe-area-inset-right));
  position: relative;
  z-index: 1;
  display: grid;
  gap: 18px;
  animation: softFade 0.9s ease-out both;
}

.page-view {
  display: none;
}

.page-view.is-active {
  display: grid;
  gap: 18px;
}

.page-view[data-view="invite"] {
  min-height: calc(100svh - 120px);
}


.card {
  background: var(--card);
  border: 2px solid var(--stroke);
  border-radius: 28px;
  padding: 28px;
  box-shadow: var(--shadow);
  display: grid;
  gap: 16px;
  animation: softRise 1s ease-out 0.05s both;
}

.card.center {
  text-align: center;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.3em;
  font-size: 0.75rem;
  color: var(--muted);
  animation: softFade 0.8s ease-out 0.1s both;
}

h1 {
  font-family: "Gaegu", "Nunito", sans-serif;
  font-size: clamp(2.1rem, 4.2vw, 3rem);
  line-height: 1.15;
  animation: softRise 0.9s ease-out 0.18s both;
}

.sub {
  color: var(--muted);
}

.form,
.list {
  display: grid;
  gap: 14px;
}

.promise-list {
  gap: 12px;
}

.promise-status {
  margin-top: -4px;
  color: var(--accent-dark);
  font-weight: 600;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 0.4s ease, transform 0.4s ease;
  min-height: 1.4em;
}

.promise-status.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.promise-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border-radius: 18px;
  border: 2px solid rgba(255, 138, 179, 0.22);
  background: #fff;
  box-shadow: 0 10px 20px rgba(255, 138, 179, 0.12);
  color: var(--ink);
  font-size: 0.98rem;
  line-height: 1.4;
}

.promise-item input {
  width: 18px;
  height: 18px;
  accent-color: var(--accent-dark);
}

.promise-item--vow {
  position: relative;
  flex-wrap: wrap;
  gap: 8px 12px;
  background: linear-gradient(135deg, #fff4fa 0%, #fff9f1 55%, #fff 100%);
  border-color: rgba(255, 138, 179, 0.4);
  box-shadow: 0 16px 28px rgba(255, 138, 179, 0.18);
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.promise-item--vow.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.promise-item--vow input {
  accent-color: #f26a9b;
  opacity: 0.7;
}

.promise-item--vow span {
  font-weight: 600;
}

.promise-vow {
  font-style: normal;
  font-size: 0.85rem;
  color: var(--accent-dark);
  background: rgba(255, 138, 179, 0.18);
  padding: 4px 10px;
  border-radius: 999px;
}

.video-card {
  display: grid;
  gap: 16px;
}

.video-frame {
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: 18px;
  border: 2px solid rgba(255, 138, 179, 0.18);
  overflow: hidden;
  background: radial-gradient(circle at top, #ffffff 0%, #fff1f7 70%, #ffe3ee 100%);
  box-shadow: inset 0 0 24px rgba(255, 183, 207, 0.2);
}

.video-frame video {
  width: 100%;
  height: 100%;
  display: block;
  background: #fff;
}

.video-reveal {
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.video-reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.final-message {
  text-align: center;
  gap: 10px;
  padding: 0;
  border-radius: 0;
  background: transparent;
  border: none;
  box-shadow: none;
  min-height: 60vh;
  align-content: center;
}

.final-message h1 {
  font-size: clamp(2rem, 6.5vw, 3rem);
  line-height: 1.15;
}

.final-message .sub {
  font-size: clamp(1.1rem, 4.8vw, 1.6rem);
  color: var(--ink);
}

.final-message .eyebrow {
  animation: none;
}

.final-line {
  opacity: 0;
  transform: translateY(12px);
  visibility: hidden;
  animation: none;
}

.final-line.is-visible {
  visibility: visible;
  animation: softRise 0.9s ease-out forwards;
}

.field {
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-size: 0.95rem;
}

.field input {
  border: 2px solid rgba(255, 138, 179, 0.28);
  border-radius: 16px;
  padding: 12px 16px;
  font-size: 1rem;
  font-family: inherit;
  background: linear-gradient(180deg, #ffffff 0%, #fff7fb 100%);
  box-shadow: 0 8px 18px rgba(255, 138, 179, 0.12);
}

.primary {
  border-radius: 999px;
  padding: 12px 18px;
  font-family: "Gowun Dodum", "Apple SD Gothic Neo", sans-serif;
  font-size: 1rem;
  cursor: pointer;
  border: none;
  text-decoration: none;
  display: inline-block;
  text-align: center;
}

.primary {
  background: linear-gradient(135deg, #ff9bc4 0%, #ff7fb0 60%, #ff6fa0 100%);
  color: #fff;
  box-shadow: 0 14px 30px rgba(255, 127, 176, 0.4);
  animation: softRise 0.9s ease-out 0.36s both;
}

.primary[disabled] {
  background: linear-gradient(135deg, #f7dbe7 0%, #f1c8d7 60%, #eab5c8 100%);
  color: #b58aa0;
  cursor: not-allowed;
  pointer-events: none;
  box-shadow: none;
}

.timeline {
  display: grid;
  gap: 12px;
}

.timeline-track {
  position: relative;
  display: grid;
  place-items: center;
  padding: 10px 0 18px;
  min-height: 460px;
}

.timeline-track::-webkit-scrollbar {
  height: 0;
}

.timeline-track::-webkit-scrollbar-thumb {
  background: transparent;
}

.timeline-card {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  opacity: 0;
  transition: opacity 2.6s ease;
  pointer-events: none;
}

.timeline-card.is-active {
  opacity: 1;
  pointer-events: auto;
}

.timeline-card figure {
  display: grid;
  gap: 10px;
  background: #fff;
  border-radius: 22px;
  border: 2px solid rgba(255, 138, 179, 0.2);
  padding: 22px 18px;
  box-shadow: 0 16px 30px rgba(255, 138, 179, 0.15);
  width: 100%;
  max-width: 560px;
}

.timeline-card img {
  width: 100%;
  height: 360px;
  object-fit: contain;
  background: #fff;
  border-radius: 16px;
  border: none;
  user-select: none;
  -webkit-user-drag: none;
}

.timeline-card figcaption {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 0.95rem;
}

.timeline-card--intro .timeline-note {
  min-height: 360px;
  place-items: center;
  text-align: center;
  background: linear-gradient(135deg, #fff7fb 0%, #f7f1ff 55%, #fff4f8 100%);
}

.timeline-card--intro figcaption {
  color: var(--ink);
  font-family: "Gaegu", "Nunito", sans-serif;
  font-size: clamp(1.4rem, 3.6vw, 2rem);
  line-height: 1.35;
}

.timeline-card strong {
  color: var(--ink);
  font-size: 1rem;
}

.timeline-hint {
  text-align: center;
  color: var(--muted);
  font-size: 0.9rem;
}

.item {
  padding: 10px 14px;
  border-radius: 18px;
  background: #fff;
  border: 2px solid rgba(255, 138, 179, 0.2);
}

.top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.95rem;
  color: var(--muted);
  animation: softFade 0.8s ease-out both;
}

.badge {
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(255, 138, 179, 0.18);
  color: var(--accent-dark);
  font-weight: 700;
}

.meta {
  display: grid;
  gap: 6px;
  color: var(--muted);
  animation: softRise 0.9s ease-out 0.28s both;
}

.spacer {
  height: 8px;
}

.link {
  color: var(--accent-dark);
  text-decoration: none;
  font-weight: 700;
}

.footer {
  text-align: center;
  color: var(--muted);
  font-size: 0.95rem;
}

.error-text {
  color: var(--accent-dark);
  font-weight: 700;
}

@media (max-width: 900px) {
  body {
    padding: 22px;
  }

  .container {
    gap: 16px;
  }

  .card {
    border-radius: 24px;
    padding: 22px;
  }

  h1 {
    font-size: clamp(1.9rem, 5vw, 2.6rem);
  }
}

@media (max-width: 720px) {
  body {
    padding: 20px;
  }
}

@media (max-width: 600px) {
  body {
    padding: 18px;
  }

  .container {
    gap: 14px;
  }

  .card {
    border-radius: 20px;
    padding: 18px;
  }

  .eyebrow {
    letter-spacing: 0.22em;
    font-size: 0.7rem;
  }

  h1 {
    font-size: clamp(1.6rem, 7vw, 2.2rem);
  }

  .sub {
    font-size: 0.95rem;
  }

  .form,
  .list {
    gap: 12px;
  }

  .field input {
    padding: 10px 14px;
  }

  .primary {
    width: 100%;
    padding: 12px 14px;
    font-size: 0.98rem;
  }

  .timeline-track {
    min-height: 380px;
    padding: 6px 0 12px;
  }

  .timeline-card figure {
    padding: 18px 14px;
  }

  .timeline-card img {
    height: 260px;
  }

  .timeline-card--intro .timeline-note {
    min-height: 260px;
  }


  .top {
    font-size: 0.9rem;
  }
}

@media (max-width: 420px) {
  body {
    padding: 14px;
  }

  .card {
    padding: 16px;
  }

  h1 {
    font-size: clamp(1.5rem, 8vw, 2rem);
  }

  .timeline-card img {
    height: 220px;
  }

  .timeline-card--intro .timeline-note {
    min-height: 220px;
  }
}

@keyframes softFade {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes softRise {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}