:root {
  --bg: #f6f0e9;
  --bg-accent: #e9f2ef;
  --card: #fffdf9;
  --ink: #2a2622;
  --muted: #6b625a;
  --primary: #1f6f65;
  --primary-dark: #13524a;
  --accent: #ffb86b;
  --shadow: 0 18px 40px rgba(27, 29, 30, 0.12);
  --radius: 22px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Noto Sans KR", "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;
  background: linear-gradient(160deg, var(--bg) 0%, var(--bg-accent) 100%);
  color: var(--ink);
  font-size: 18px;
}

.app {
  max-width: 480px;
  margin: 0 auto;
  min-height: 100svh;
  padding: 16px 16px 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.info {
  background: rgba(255, 255, 255, 0.7);
  border-radius: 16px;
  padding: 14px 16px;
  display: grid;
  gap: 6px;
  box-shadow: 0 10px 24px rgba(20, 22, 23, 0.06);
}

.info__date {
  font-weight: 700;
  font-size: 20px;
}

.info__weather,
.info__outfit {
  font-size: 18px;
  color: var(--muted);
}

.info__location {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  font-size: 16px;
  color: var(--muted);
  flex-wrap: wrap;
}

.info__consent {
  background: rgba(255, 255, 255, 0.8);
  border-radius: 14px;
  padding: 10px 12px;
  display: grid;
  gap: 8px;
  border: 1px solid #efe4d8;
}

.info__consent-text {
  font-size: 16px;
  color: var(--muted);
}

.info__consent-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.info__source {
  font-size: 16px;
  color: #9a928a;
}

.main {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.card-wrap {
  flex: 1;
}

.card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 0;
  box-shadow: var(--shadow);
  display: grid;
  gap: 0;
  position: relative;
  overflow: hidden;
  min-height: 46vh;
}

.card::before {
  content: "";
  position: absolute;
  top: -40px;
  right: -60px;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 184, 107, 0.45), rgba(255, 184, 107, 0));
}

.card__to {
  font-size: 20px;
  font-weight: 700;
}

.card__image {
  border-radius: var(--radius);
  background: linear-gradient(140deg, #f1e7d9, #d7efe9);
  aspect-ratio: 1 / 1.6;
  height: clamp(400px, 68vh, 760px);
  width: 100%;
  display: grid;
  place-items: center;
  z-index: 1;
  overflow: hidden;
  position: relative;
}

.card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.card__effects {
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
}

.card__effects canvas {
  width: 100%;
  height: 100%;
  display: block;
}

.effect-stars::before,
.effect-stars::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(2px 2px at 20% 30%, rgba(255, 255, 255, 0.9) 50%, transparent 55%),
    radial-gradient(1.5px 1.5px at 70% 20%, rgba(255, 255, 255, 0.8) 50%, transparent 55%),
    radial-gradient(1.5px 1.5px at 40% 80%, rgba(255, 255, 255, 0.7) 50%, transparent 55%),
    radial-gradient(2px 2px at 85% 70%, rgba(255, 255, 255, 0.85) 50%, transparent 55%);
  opacity: 0.9;
  animation: twinkle 2.5s infinite alternate;
}

.effect-milkyway::before {
  content: "";
  position: absolute;
  inset: -10% 0;
  background: radial-gradient(ellipse at 40% 30%, rgba(255, 255, 255, 0.25), transparent 60%);
  filter: blur(2px);
  animation: drift 8s infinite alternate;
}

.effect-meteor::before {
  content: "";
  position: absolute;
  top: -10%;
  left: -20%;
  width: 120%;
  height: 120%;
  background: linear-gradient(120deg, transparent 45%, rgba(255, 255, 255, 0.9) 50%, transparent 55%);
  opacity: 0.6;
  animation: meteor 3.5s infinite;
}

@keyframes twinkle {
  0% { opacity: 0.4; }
  100% { opacity: 1; }
}

@keyframes drift {
  0% { transform: translateY(0); }
  100% { transform: translateY(10px); }
}

@keyframes meteor {
  0% { transform: translateX(-40%) translateY(-40%); opacity: 0; }
  30% { opacity: 0.8; }
  100% { transform: translateX(40%) translateY(40%); opacity: 0; }
}

.card__scrim {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.4) 0%, rgba(0, 0, 0, 0.15) 35%, rgba(0, 0, 0, 0.35) 100%);
  z-index: 1;
}

.card__overlay {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: grid;
  grid-template-rows: auto 1fr auto;
  padding: 16px;
  color: #ffffff;
  font-weight: 700;
}

.card__overlay * {
  text-shadow:
    -1px -1px 0 #000,
    1px -1px 0 #000,
    -1px 1px 0 #000,
    1px 1px 0 #000,
    0 2px 6px rgba(0, 0, 0, 0.6);
}


.card__meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  font-size: 18px;
}

.card__recipient {
  align-self: end;
}

.card__note {
  font-size: 22px;
  color: #ffffff;
  background: transparent;
  border-radius: 0;
  padding: 0;
  margin-top: 8px;
  max-width: 100%;
}

.card__message {
  font-size: 26px;
  line-height: 1.5;
  align-self: center;
  text-align: left;
}

.card__message p {
  margin: 0 0 6px;
}

.card__source {
  font-size: 15px;
  color: rgba(255, 255, 255, 0.8);
  text-align: right;
}

.card__source a {
  color: rgba(255, 255, 255, 0.9);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 255, 255, 0.4);
  padding-bottom: 1px;
}

.cta {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 10px;
}

.btn {
  border: none;
  border-radius: 16px;
  padding: 14px 16px;
  font-size: 19px;
  font-weight: 700;
  cursor: pointer;
  min-height: 48px;
}

.btn--primary {
  background: linear-gradient(135deg, #2a8a7c, #1f6f65);
  color: white;
  box-shadow: 0 12px 24px rgba(31, 111, 101, 0.28);
}

.btn--primary:active {
  background: var(--primary-dark);
}

.btn--ghost {
  background: #ffffff;
  color: var(--primary);
  border: 1px solid #d8e3de;
}

.btn--light {
  background: white;
  color: var(--ink);
  border: 1px solid #e6ded6;
  font-weight: 600;
}

.btn--link {
  background: transparent;
  color: var(--muted);
  font-weight: 600;
  text-decoration: underline;
}

.btn--tiny {
  background: #f7f3ee;
  color: var(--ink);
  border: 1px solid #e2d8cf;
  border-radius: 999px;
  padding: 8px 12px;
  font-size: 17px;
  font-weight: 600;
  min-height: 48px;
  white-space: nowrap;
  flex: 0 0 auto;
}

.btn--compact {
  padding: 10px 12px;
  font-size: 17px;
  min-height: 48px;
}

.btn--confirm {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

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

.options__row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.options__row--inline {
  grid-template-columns: 1fr 1fr 1fr 1.2fr;
}

.options__row--image {
  grid-template-columns: 1fr 1fr;
}

.options__row--effects {
  grid-template-columns: repeat(4, 1fr);
}

.options__row--greeting {
  grid-template-columns: repeat(3, 1fr);
}

.options__row--variants {
  grid-template-columns: repeat(3, 1fr);
}

.options__location {
  display: grid;
  gap: 8px;
  padding: 10px 12px;
  background: rgba(255, 255, 255, 0.7);
  border-radius: 14px;
  border: 1px solid #efe4d8;
}

.options__location-text {
  font-size: 17px;
  color: var(--muted);
}

.chip {
  background: white;
  border: 1px solid #e2d8cf;
  border-radius: 999px;
  padding: 8px 6px;
  font-size: 17px;
  font-weight: 600;
  color: var(--ink);
  min-height: 48px;
  box-shadow: 0 8px 16px rgba(30, 33, 33, 0.08);
}

.chip.is-active {
  background: #1f6f65;
  color: white;
  border-color: #1f6f65;
}

.chip--soft {
  background: #f8f4ef;
}

.name-input__row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
  align-items: center;
}

.options__row--greeting {
  margin-top: 4px;
}

.options__name {
  display: grid;
  gap: 8px;
}

.name-label {
  display: block;
  font-size: 17px;
  color: var(--muted);
  margin-bottom: 6px;
}

.name-input input {
  width: 100%;
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid #d8cec4;
  font-size: 19px;
}

.more {
  display: grid;
  gap: 8px;
}

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

.card--mini {
  min-height: auto;
  padding: 12px 14px;
}

.card--mini .card__image {
  display: none;
}

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

@media (min-width: 768px) {
  .app {
    padding: 24px 20px 32px;
  }

  .card {
    min-height: 420px;
  }

  .card__image {
    height: 240px;
  }
}

@media (max-width: 420px) {
  .cta {
    grid-template-columns: 1fr;
  }

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

@media (max-height: 720px) {
  .card {
    min-height: 38vh;
  }

  .card__message {
    font-size: 17px;
  }

  .btn {
    font-size: 17px;
  }

  .card__note {
    font-size: 16px;
  }

  .card__image {
    height: clamp(360px, 64vh, 720px);
  }
}