:root {
  --teal: #2d7f79;
  --teal-deep: #174f4b;
  --teal-soft: #d8eee8;
  --paper: #f8efe3;
  --paper-deep: #ebd8c3;
  --paper-shadow: #d1b89f;
  --ink: #21312f;
  --muted: rgba(23, 79, 75, 0.72);
  --gold: #b88a52;
  --white: #fffdf9;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--teal);
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: "Manrope", sans-serif;
  background:
    radial-gradient(circle at top, rgba(255, 255, 255, 0.15), transparent 32%),
    linear-gradient(180deg, #4a9a92 0%, var(--teal) 38%, #256760 100%);
}

button,
input,
textarea,
select {
  font: inherit;
}

.page-shell {
  min-height: 100vh;
  padding: 1.25rem 1.25rem 3rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.invite-app {
  width: min(100%, 74rem);
  position: relative;
}

.intro {
  text-align: center;
  color: var(--white);
  margin-bottom: 1.6rem;
}

.kicker,
.cue {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.22em;
  font-size: 0.76rem;
  color: rgba(255, 251, 245, 0.82);
}

.intro h1,
.caption-block h2 {
  margin: 0.35rem 0 0.2rem;
  font-family: "Allura", cursive;
  font-weight: 400;
  letter-spacing: 0.02em;
}

.intro h1 {
  font-size: clamp(3rem, 6vw, 5.4rem);
}

.intro-copy {
  margin: 0 auto;
  max-width: 36rem;
  color: rgba(255, 251, 245, 0.78);
  font-size: 1rem;
}

.tab-controls {
  display: flex;
  justify-content: flex-end;
  gap: 0.85rem;
  flex-wrap: wrap;
  margin: 0 0 1.5rem auto;
  width: fit-content;
}

.tab-button {
  border: 1px solid rgba(255, 253, 249, 0.9);
  background: var(--white);
  color: #111111;
  border-radius: 999px;
  padding: 0.8rem 1.4rem;
  min-width: 12rem;
  cursor: pointer;
  font-family: "Allura", cursive;
  font-size: 1.65rem;
  line-height: 1;
  transition: transform 180ms ease, background 180ms ease, opacity 180ms ease;
  box-shadow: 0 14px 28px rgba(10, 43, 40, 0.16);
}

.tab-button:hover,
.tab-button:focus-visible {
  transform: translateY(-1px);
  background: #f8f5ef;
  outline: none;
}

.tab-button.is-active {
  background: var(--white);
  color: #111111;
  border-color: var(--white);
}

#tab-open:not(.is-active) {
  animation: softBlink 3.2s ease-in-out infinite;
}

.tab-panel {
  background:
    linear-gradient(180deg, rgba(255, 253, 249, 0.09), rgba(255, 253, 249, 0.03)),
    rgba(255, 253, 249, 0.08);
  border: 1px solid rgba(255, 253, 249, 0.22);
  border-radius: 2rem;
  padding: clamp(1.5rem, 4vw, 2.5rem);
  box-shadow: 0 28px 70px rgba(10, 43, 40, 0.28);
  animation: panelFade 600ms ease;
}

.scene {
  display: grid;
  gap: 2rem;
  justify-items: center;
}

.envelope-wrap {
  position: relative;
  width: min(100%, 36rem);
  min-height: 32rem;
  display: grid;
  place-items: end center;
  padding-top: 4.5rem;
}

.envelope {
  position: relative;
  width: min(100%, 30rem);
  aspect-ratio: 1.35 / 1;
  --envelope-body-height: 71%;
  --envelope-seam: calc(100% - var(--envelope-body-height));
}

.sealed-envelope .envelope-face,
.open-envelope .envelope-pocket {
  position: absolute;
  inset: auto 0 0;
  height: var(--envelope-body-height);
  background: linear-gradient(180deg, var(--paper) 0%, #edd7bf 100%);
  border-radius: 0 0 1.5rem 1.5rem;
  box-shadow: 0 20px 40px rgba(24, 64, 59, 0.25);
  z-index: 2;
}

.sealed-envelope .envelope-face::before,
.open-envelope .envelope-pocket::before,
.sealed-envelope .envelope-face::after,
.open-envelope .envelope-pocket::after {
  content: "";
  position: absolute;
  bottom: 0;
  width: 50%;
  height: 100%;
  background: linear-gradient(180deg, #f4e7d7 0%, var(--paper-deep) 100%);
}

.sealed-envelope .envelope-face::before,
.open-envelope .envelope-pocket::before {
  left: 0;
  clip-path: polygon(0 0, 100% 50%, 100% 100%, 0 100%);
}

.sealed-envelope .envelope-face::after,
.open-envelope .envelope-pocket::after {
  right: 0;
  clip-path: polygon(0 50%, 100% 0, 100% 100%, 0 100%);
}

.sealed-envelope .envelope-flap,
.open-envelope .envelope-liner {
  position: absolute;
  top: var(--envelope-seam);
  left: 0;
  right: 0;
  height: 56%;
  background: linear-gradient(180deg, #f7e9d9 0%, #e6ccb0 100%);
  clip-path: polygon(0 0, 100% 0, 50% 98%);
  border-radius: 1.35rem 1.35rem 0 0;
  z-index: 1;
}

.sealed-envelope .envelope-flap {
  box-shadow: inset 0 -6px 12px rgba(146, 112, 79, 0.18);
}

.open-envelope .envelope-liner {
  transform: rotateX(180deg);
  transform-origin: top center;
  box-shadow: inset 0 -10px 18px rgba(151, 117, 84, 0.16);
}

.wax-mark {
  position: absolute;
  left: 50%;
  bottom: 28%;
  transform: translateX(-50%);
  width: 5.1rem;
  height: 5.1rem;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, #f4d7ae 0%, var(--gold) 38%, #8c6132 100%);
  display: grid;
  place-items: center;
  font-family: "Allura", cursive;
  font-size: 2rem;
  color: var(--white);
  box-shadow: 0 10px 20px rgba(61, 36, 13, 0.22);
  z-index: 4;
}

.wax-trigger {
  border: 0;
  cursor: pointer;
}

.wax-trigger:hover,
.wax-trigger:focus-visible {
  transform: translateX(-50%) scale(1.03);
  outline: none;
}

.flower {
  position: absolute;
  bottom: 3.25rem;
  width: 7rem;
  height: 7rem;
  filter: drop-shadow(0 10px 12px rgba(12, 52, 48, 0.16));
  z-index: 5;
}

.flower-left {
  left: -0.75rem;
}

.flower-right {
  right: -0.75rem;
}

.petal,
.center {
  position: absolute;
  display: block;
}

.petal {
  width: 2.85rem;
  height: 2.85rem;
  background: radial-gradient(circle at 40% 35%, #ffffff 0%, #f6f2ec 58%, #dfd6cc 100%);
  border-radius: 65% 35% 65% 35%;
}

.petal-a {
  left: 2rem;
  top: 0;
  transform: rotate(10deg);
}

.petal-b {
  right: 0.3rem;
  top: 1.9rem;
  transform: rotate(102deg);
}

.petal-c {
  left: 2rem;
  bottom: 0;
  transform: rotate(192deg);
}

.petal-d {
  left: 0.2rem;
  top: 1.9rem;
  transform: rotate(282deg);
}

.center {
  left: 50%;
  top: 50%;
  width: 1.1rem;
  height: 1.1rem;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  background: #f2d49b;
}

.pullout {
  position: absolute;
  border-radius: 1.4rem;
  box-shadow: 0 18px 34px rgba(14, 43, 40, 0.22);
}

.photo-card {
  width: 9.2rem;
  height: 13rem;
  top: 4.2rem;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  color: var(--white);
  background:
    linear-gradient(180deg, rgba(18, 42, 40, 0.05), rgba(18, 42, 40, 0.7)),
    linear-gradient(160deg, #e8d8c9 0%, #c7997d 45%, #476a66 100%);
  z-index: 2;
}

.photo-card::before {
  content: "";
  position: absolute;
  inset: 0.8rem;
  border: 1px solid rgba(255, 255, 255, 0.36);
  border-radius: 1rem;
}

.photo-card strong,
.ticket-date {
  position: relative;
  z-index: 1;
}

.photo-label,
.ticket-top {
  position: relative;
  z-index: 1;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.68rem;
}

.photo-card strong {
  font-family: "Cormorant Garamond", serif;
  font-size: 2rem;
  font-weight: 600;
}

.pullout-left {
  left: 3rem;
  transform: translateY(-2.8rem) rotate(-8deg);
}

.pullout-right {
  right: 3rem;
  transform: translateY(-1.65rem) rotate(8deg);
}

.ticket-card {
  left: 50%;
  top: 0;
  width: min(78%, 17rem);
  min-height: 13rem;
  transform: translateX(-50%) rotate(-1deg);
  background:
    radial-gradient(circle at top left, rgba(255, 255, 255, 0.45), transparent 36%),
    linear-gradient(180deg, #fffaf3 0%, #f0dfcc 100%);
  color: var(--teal-deep);
  padding: 1.35rem 1.5rem 1.2rem;
  text-align: center;
  z-index: 3;
}

.ticket-card::before,
.ticket-card::after {
  content: "";
  position: absolute;
  top: 1.25rem;
  width: 0.85rem;
  height: 0.85rem;
  border-radius: 50%;
  background: var(--teal);
}

.ticket-card::before {
  left: -0.4rem;
}

.ticket-card::after {
  right: -0.4rem;
}

.ticket-date {
  display: block;
  margin: 1rem 0 0.85rem;
  font-family: "Cormorant Garamond", serif;
  font-size: clamp(2.15rem, 4.8vw, 3.1rem);
  font-weight: 700;
  letter-spacing: 0.06em;
}

.ticket-bottom {
  display: block;
  font-family: "Allura", cursive;
  font-size: clamp(1.8rem, 4vw, 2.6rem);
}

.caption-block {
  text-align: center;
  color: var(--white);
}

.caption-block h2 {
  font-size: clamp(3.2rem, 7vw, 5.2rem);
}

.location {
  margin: 0;
  color: rgba(255, 251, 245, 0.84);
  font-size: 1rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.scene-closed .sealed-envelope {
  animation: sealedFloat 5s ease-in-out infinite;
}

.scene-closed .cue {
  animation: softBlink 3.4s ease-in-out infinite;
}

.scene-open .pullout-left {
  animation: riseLeft 900ms ease 120ms both;
}

.scene-open .pullout-right {
  animation: riseRight 900ms ease 240ms both;
}

.scene-open .ticket-card {
  animation: riseCenter 900ms ease both;
}

@keyframes panelFade {
  from {
    opacity: 0;
    transform: translateY(10px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes sealedFloat {
  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-10px);
  }
}

@keyframes softBlink {
  0%,
  100% {
    opacity: 0.4;
  }

  50% {
    opacity: 1;
  }
}

@keyframes riseCenter {
  from {
    opacity: 0;
    transform: translateX(-50%) translateY(2rem) rotate(-1deg);
  }

  to {
    opacity: 1;
    transform: translateX(-50%) translateY(0) rotate(-1deg);
  }
}

@keyframes riseLeft {
  from {
    opacity: 0;
    transform: translateY(1rem) rotate(-8deg);
  }

  to {
    opacity: 1;
    transform: translateY(-2.8rem) rotate(-8deg);
  }
}

@keyframes riseRight {
  from {
    opacity: 0;
    transform: translateY(1rem) rotate(8deg);
  }

  to {
    opacity: 1;
    transform: translateY(-1.65rem) rotate(8deg);
  }
}

@media (max-width: 840px) {
  .envelope-wrap {
    min-height: 29rem;
    width: min(100%, 30rem);
  }

  .flower {
    width: 5.8rem;
    height: 5.8rem;
    bottom: 2.8rem;
  }

  .pullout-left {
    left: 1.2rem;
  }

  .pullout-right {
    right: 1.2rem;
  }
}

@media (max-width: 640px) {
  .page-shell {
    padding: 1rem 0.85rem 2rem;
  }

  .intro {
    margin-bottom: 1.2rem;
  }

  .tab-controls {
    gap: 0.55rem;
    margin-bottom: 1rem;
  }

  .tab-button {
    min-width: 8.75rem;
    width: auto;
    padding: 0.72rem 1.05rem;
    font-size: 1.35rem;
  }

  .tab-panel {
    border-radius: 1.6rem;
    padding: 1.1rem 0.9rem 1.5rem;
  }

  .envelope-wrap {
    min-height: 24rem;
    width: min(100%, 22rem);
    padding-top: 5.5rem;
  }

  .envelope {
    width: 100%;
  }

  .wax-mark {
    width: 4.2rem;
    height: 4.2rem;
    font-size: 1.65rem;
  }

  .flower {
    width: 4.4rem;
    height: 4.4rem;
    bottom: 2rem;
  }

  .flower-left {
    left: -0.2rem;
  }

  .flower-right {
    right: -0.2rem;
  }

  .petal {
    width: 2rem;
    height: 2rem;
  }

  .petal-a,
  .petal-c {
    left: 1.25rem;
  }

  .petal-b,
  .petal-d {
    top: 1.3rem;
  }

  .center {
    width: 0.8rem;
    height: 0.8rem;
  }

  .photo-card {
    width: 6.4rem;
    height: 9.8rem;
    padding: 0.8rem;
  }

  .photo-card strong {
    font-size: 1.45rem;
  }

  .pullout-left {
    left: 0.45rem;
    top: 5.25rem;
    transform: translateY(-1.5rem) rotate(-8deg);
  }

  .pullout-right {
    right: 0.45rem;
    top: 5rem;
    transform: translateY(-0.7rem) rotate(8deg);
  }

  .ticket-card {
    width: min(82%, 14rem);
    min-height: 10.8rem;
    padding: 1rem 1rem 0.9rem;
  }

  .caption-block h2 {
    font-size: clamp(2.3rem, 10vw, 3.3rem);
  }

  .location {
    font-size: 0.86rem;
  }

  @keyframes riseLeft {
    from {
      opacity: 0;
      transform: translateY(1rem) rotate(-8deg);
    }

    to {
      opacity: 1;
      transform: translateY(-1.5rem) rotate(-8deg);
    }
  }

  @keyframes riseRight {
    from {
      opacity: 0;
      transform: translateY(1rem) rotate(8deg);
    }

    to {
      opacity: 1;
      transform: translateY(-0.7rem) rotate(8deg);
    }
  }
}