:root {
  --paper: #fbf8f0;
  --cream: #f4eddf;
  --ivory: #fffdf7;
  --gold: #a98642;
  --deep-gold: #8f7138;
  --ink-soft: #6f5e3f;
  --line: rgba(169, 134, 66, 0.42);
  --shadow: 0 28px 80px rgba(95, 73, 37, 0.24);

  /* --- Envelope geometry --- */
  --env-aspect: 840 / 600;
  --flap-hinge: 5%;
  --flap-lift: -5%;

  /* --- Animation timing --- */
  --t-flap: 1100ms;
  --t-card-rise: 1151ms;
  --t-card-flourish: 1050ms;

  /* The card stays behind the flap until this delay passes */
  --card-layer-delay: 450ms;

  /*
    Shared card positioning.
    Desktop uses your working values as the base.
    Opening/revealed values are now relative to the base values.
  */
  --card-y-base: 15%;
  --card-top-base: 6%;
  --card-height-base: 56%;
  --card-scale-base: 2.2;

  --card-closed-y: var(--card-y-base);
  --card-opening-y: calc(var(--card-y-base) - 20%);
  --card-revealed-y: calc(var(--card-y-base) - 7%);
  --card-top: var(--card-top-base);
  --card-height: var(--card-height-base);
  --card-start-scale: var(--card-scale-base);
  --card-opening-scale: calc(var(--card-scale-base) + 0.2);
  --card-revealed-scale: calc(var(--card-scale-base) + 1.2);

  --ease-paper: cubic-bezier(0.22, 0.61, 0.36, 1);
  --ease-flourish: cubic-bezier(0.18, 0.86, 0.34, 1.08);
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

body {
  margin: 0;
  color: var(--ink-soft);
  background:
    radial-gradient(circle at 50% 0%, rgba(255, 255, 255, 0.75), transparent 38rem),
    linear-gradient(180deg, #efe4d2 0%, #fbf8ef 48%, #f4eadb 100%);
  font-family: "Cormorant Garamond", Georgia, serif;
}

button, input, textarea { font: inherit; }

.page-shell {
  min-height: 100vh;
  overflow: hidden;
}

/* ============================================================
   ENVELOPE
   ============================================================ */

.invite-stage {
  min-height: 100vh;
  min-height: 100svh;
  /* 100dvh tracks the viewport as the mobile browser UI shows/hides,
     so the marble always fills exactly what's on screen — no strip
     of the section below peeking through. Last declaration wins
     where supported. */
  min-height: 100dvh;
  display: grid;
  place-items: center;
  position: relative;
  padding: 4vh 1rem 6rem;
  overflow: hidden;

  background:
    linear-gradient(rgba(255, 255, 255, 0.32), rgba(255, 255, 255, 0.32)),
    url("rsvp-background.png") center / cover no-repeat;
}

.envelope {
  position: relative;
  width: min(92vw, 560px);
  aspect-ratio: var(--env-aspect);
  perspective: 1600px;
  perspective-origin: 50% 28%;
}

.envelope__back,
.envelope__front,
.envelope__flap-shadow,
.envelope__card-wrapper {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.envelope__back,
.envelope__front,
.envelope__flap-shadow {
  object-fit: contain;
  user-select: none;
  pointer-events: none;
}

/* Base closed-state layer order */
.envelope__back {
  z-index: 1;
  filter: drop-shadow(0 30px 40px rgba(82, 63, 29, 0.22));
}

.envelope__card-wrapper {
  z-index: 2;
}

.envelope__flap-shadow {
  z-index: 3;
  opacity: 0;
}

.envelope__front {
  z-index: 4;
}

.envelope__flap {
  z-index: 5;
}

.envelope__trigger {
  z-index: 9;
}

/* ----- Ambient glow ----- */
.envelope__glow {
  position: absolute;
  inset: -12%;
  z-index: 0;
  background: radial-gradient(
    ellipse at 50% 44%,
    rgba(255, 240, 210, 0.55) 0%,
    rgba(255, 240, 210, 0) 62%
  );
  opacity: 0.4;
  transition: opacity 1200ms ease;
  pointer-events: none;
}

/* ----- The invitation card ----- */
.envelope__card-wrapper {
  display: block;

  /* Wrapper only handles vertical movement. */
  transform: translateY(var(--card-closed-y));
  opacity: 1;

  pointer-events: none;
  transition:
    transform var(--t-card-rise) var(--ease-paper);
}

.envelope__card {
  position: absolute;
  left: 50%;
  top: var(--card-top);

  /*
    This is the key fix.
    Horizontal centering is separate from rotate/scale, so the card
    cannot drift right on mobile.
  */
  translate: -50% 0;

  height: var(--card-height);
  width: auto;
  margin-top: 0;
  border-radius: 2px;
  box-shadow:
    0 2px 6px rgba(82, 63, 29, 0.18),
    0 22px 44px rgba(82, 63, 29, 0.26);
  image-rendering: auto;
  user-select: none;
  pointer-events: none;
  transform-origin: 50% 50%;
  transform: rotate(-90deg) scale(var(--card-start-scale));
  transition: transform var(--t-card-flourish) var(--ease-flourish);
}

/* ----- The flap ----- */
.envelope__flap {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  transform-origin: 50% var(--flap-hinge);
  transform-style: preserve-3d;
  transform: translateY(var(--flap-lift)) rotateX(0deg);
  transition: transform var(--t-flap) var(--ease-paper);
  pointer-events: none;
}

.envelope.preload * {
  transition: none !important;
}

.envelope__flap img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  backface-visibility: hidden;
  user-select: none;
}

.flap-face {
  transform: rotateX(0deg);
}

.flap-inside {
  transform: rotateY(180deg) scaleX(-1);
}

/* ----- Click trigger ----- */
.envelope__trigger {
  position: absolute;
  inset: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
  display: grid;
  place-items: end center;
  padding-bottom: 8%;
  transition: opacity 400ms ease;
}

.trigger-hint {
  color: var(--gold);
  text-transform: uppercase;
  letter-spacing: 0.32em;
  font-size: 0.78rem;
  padding: 0.7rem 1.2rem;
  background: rgba(255, 253, 247, 0.78);
  border: 1px solid var(--line);
  backdrop-filter: blur(3px);
  animation: hint-pulse 2.6s ease-in-out infinite;
}

@keyframes hint-pulse {
  0%, 100% {
    opacity: 0.75;
    transform: translateY(0);
  }

  50% {
    opacity: 1;
    transform: translateY(-3px);
  }
}

/* ============================================================
   LAYER SWITCH KEYFRAMES
   ============================================================ */

@keyframes card-layer-rise {
  from {
    z-index: 2;
  }

  to {
    z-index: 4;
  }
}

@keyframes flap-layer-drop {
  from {
    z-index: 5;
  }

  to {
    z-index: 2;
  }
}

/* ============================================================
   ANIMATION STATES
   closed -> opening -> revealed
   ============================================================ */

/* ----- opening: flap hinges open, card rises ----- */

.envelope[data-state="opening"] .envelope__flap,
.envelope[data-state="revealed"] .envelope__flap {
  transform: translateY(var(--flap-lift)) rotateX(-158deg);
}

.envelope[data-state="opening"] .envelope__flap-shadow,
.envelope[data-state="revealed"] .envelope__flap-shadow {
  opacity: 0.5;
  transition: opacity var(--t-flap) ease;
}

.envelope[data-state="opening"] .envelope__card-wrapper {
  opacity: 1;
  transform: translateY(var(--card-opening-y));

  /*
    Card stays behind the flap at first.
    Then it moves above the flap when the slide begins.
  */
  animation: card-layer-rise 1ms step-end var(--card-layer-delay) forwards;

  transition:
    transform var(--t-card-rise) var(--ease-paper) var(--card-layer-delay);
}

.envelope[data-state="opening"] .envelope__card {
  transform: rotate(-90deg) scale(var(--card-opening-scale));
  transition:
    transform var(--t-card-rise) var(--ease-paper) var(--card-layer-delay);
}

/*
  During opening, flap stays above the card at first.
  Then it drops behind the card when the card starts sliding.
*/
.envelope[data-state="opening"] .envelope__flap {
  animation: flap-layer-drop 1ms step-end var(--card-layer-delay) forwards;
}

.envelope[data-state="revealed"] .envelope__flap {
  z-index: 2;
}

.envelope[data-state="opening"] .envelope__front,
.envelope[data-state="revealed"] .envelope__front {
  z-index: 5;
}

.envelope[data-state="opening"] .envelope__trigger,
.envelope[data-state="revealed"] .envelope__trigger {
  opacity: 0;
  pointer-events: none;
}

/* ----- revealed: card rotates upright, scales to focal point ----- */

.envelope[data-state="revealed"] .envelope__card-wrapper {
  opacity: 1;
  transform: translateY(var(--card-revealed-y));
  transition:
    transform var(--t-card-flourish) var(--ease-flourish),
    opacity 400ms ease;
  z-index: 10;
}

.envelope[data-state="revealed"] .envelope__card {
  transform: rotate(0deg) scale(var(--card-revealed-scale));
  transition: transform var(--t-card-flourish) var(--ease-flourish);
}

.envelope[data-state="revealed"] .envelope__back,
.envelope[data-state="revealed"] .envelope__front,
.envelope[data-state="revealed"] .envelope__flap,
.envelope[data-state="revealed"] .envelope__flap-shadow {
  opacity: 0.16;
  transition: opacity 900ms ease 250ms;
}

.envelope[data-state="revealed"] .envelope__glow {
  opacity: 1;
}

/* ----- Scroll cue — a visible, clickable button ----- */
.scroll-cue {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.8rem 1.5rem;
  border: 1px solid rgba(169, 134, 66, 0.55);
  border-radius: 999px;
  background: rgba(255, 253, 247, 0.9);
  color: var(--gold);
  font-family: "Cormorant Garamond", Georgia, serif;
  text-transform: uppercase;
  letter-spacing: 0.22em;
  font-size: 0.82rem;
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  box-shadow: 0 10px 28px rgba(95, 73, 37, 0.22);
  transition: opacity 600ms ease, background 200ms ease, transform 200ms ease;
}

.scroll-cue.is-visible {
  opacity: 1;
  pointer-events: auto;
}

.scroll-cue:hover {
  background: var(--gold);
  color: var(--ivory);
}

.scroll-cue__arrow {
  font-size: 0.95rem;
  animation: cue-bob 2.4s ease-in-out infinite;
}

@keyframes cue-bob {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(4px); }
}

@media (prefers-reduced-motion: reduce) {
  .envelope__flap,
  .envelope__card-wrapper,
  .envelope__flap-shadow,
  .envelope__glow {
    transition-duration: 200ms !important;
  }

  .trigger-hint,
  .scroll-cue {
    animation: none;
  }
}

/* ============================================================
   RSVP SECTION
   ============================================================ */

.rsvp-art {
  background: transparent;
}

.rsvp-section {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 4rem 1.2rem;
  /* Plain warm ivory — complements the cool grey-white marble above
     without competing with it. */
  background: #f3ece0;
}

.rsvp-art {
  width: min(100%, 900px);
  padding: clamp(2rem, 5vw, 4rem);
  color: var(--gold);
}

/* ----- RSVP intro header (replaces the old "RSVP" + reply-by) ----- */
.rsvp-intro {
  text-align: center;
  margin-bottom: 3.2rem;
}

.rsvp-intro h2 {
  margin: 0;
  font-family: "Cormorant Garamond", Georgia, serif;
  font-weight: 500;
  font-size: clamp(2.4rem, 6vw, 4rem);
  letter-spacing: 0.01em;
  line-height: 1.1;
  color: #6f5b33;
}

.rsvp-sub {
  margin: 1rem 0 0;
  text-transform: uppercase;
  letter-spacing: 0.24em;
  font-size: clamp(0.85rem, 2vw, 1rem);
  font-weight: 600;
  color: #9a7634;
}

/* ----- Event details: Date + Address columns ----- */
.event-details {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-bottom: 3.2rem;
  padding-bottom: 2.6rem;
  border-bottom: 1px solid var(--line);
}

.event-col {
  text-align: center;
}

.event-label {
  margin: 0 0 1rem;
  text-transform: uppercase;
  letter-spacing: 0.22em;
  font-size: clamp(1.1rem, 2.6vw, 1.4rem);
  font-weight: 600;
  color: #9a7634;
}

.event-line {
  margin: 0.55rem 0;
  font-size: clamp(1.35rem, 3vw, 1.75rem);
  color: #6f5b33;
}

.event-line--link {
  display: block;
  color: #6f5b33;
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-thickness: 1px;
  transition: color 180ms ease;
}

.event-line--link:hover {
  color: var(--gold);
}

form label span,
legend {
  display: block;
  text-transform: uppercase;
  letter-spacing: 0.22em;
  font-size: clamp(1.05rem, 2.4vw, 1.3rem);
  font-weight: 600;
  color: #9a7634;
}
  color: #bc8e46;
}

.admin-header h2 {
  margin: 0;
  font-family: "Great Vibes", cursive;
  font-weight: 400;
  line-height: 0.96;
  color: #bf8736;
}

form {
  display: grid;
  gap: 2.2rem;
}

input,
textarea {
  width: 100%;
  border: 0;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.38);
  color: #6a583b;
  padding: 1.1rem 0.6rem;
  font-size: clamp(1rem, 2.2vw, 1.15rem);
  outline: none;
}

textarea {
  min-height: 6rem;
  resize: vertical;
}

input::placeholder,
textarea::placeholder {
  color: rgba(121, 103, 74, 0.48);
  font-style: italic;
}

fieldset {
  border: 0;
  margin: 0;
  padding: 0;
}

.option-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.2rem;
  margin-top: 1.1rem;
}

.option-grid label {
  min-height: 4.4rem;
  position: relative;
}

.option-grid input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.option-grid span {
  min-height: 4.4rem;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  background: rgba(255, 253, 247, 0.58);
  text-align: center;
  font-size: clamp(1rem, 2.3vw, 1.2rem);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transition: background 180ms ease, color 180ms ease, border-color 180ms ease;
}

.option-grid input:checked + span {
  background: #b9883c;
  color: #fffdf7;
  border-color: #b9883c;
}

.send-button,
.admin-header button {
  justify-self: center;
  min-width: min(100%, 420px);
  border: 1px solid #b9883c;
  background: transparent;
  color: #b9883c;
  text-transform: uppercase;
  letter-spacing: 0.36em;
  padding: 1rem 1.4rem;
  cursor: pointer;
  transition: background 180ms ease, color 180ms ease, transform 180ms ease;
}

.send-button:hover,
.admin-header button:hover {
  background: #b9883c;
  color: var(--ivory);
  transform: translateY(-1px);
}

.form-message {
  min-height: 1.5rem;
  margin: 0;
  text-align: center;
  color: var(--deep-gold);
}

/* ============================================================
   ADMIN
   ============================================================ */

.admin-page {
  min-height: 100vh;
  padding: 4rem 1rem;
}

.admin-section {
  width: min(100% - 2rem, 920px);
  margin: 0 auto 5rem;
  padding: 2rem 0;
  color: var(--ink-soft);
}

.admin-header {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: end;
  border-top: 1px solid var(--line);
  padding-top: 2rem;
}

.admin-header p,
.admin-header h2 {
  margin: 0;
}

.admin-header p {
  text-transform: uppercase;
  letter-spacing: 0.28em;
  color: var(--gold);
}

.admin-header h2 {
  font-size: clamp(2.8rem, 8vw, 4.5rem);
  color: var(--deep-gold);
}

.admin-header button {
  min-width: 9.5rem;
  padding: 0.8rem 1rem;
  letter-spacing: 0.2em;
}

.admin-login {
  margin: 2rem 0;
  max-width: 32rem;
}

.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin: 1.5rem 0;
}

.stats div,
.response-list article {
  border: 1px solid rgba(169, 134, 66, 0.28);
  background: rgba(255, 253, 247, 0.56);
  padding: 1rem;
}

.stats strong {
  display: block;
  color: var(--deep-gold);
  font-size: 2.5rem;
  line-height: 1;
}

.stats span {
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--gold);
}

.response-list {
  display: grid;
  gap: 0.8rem;
}

.response-list article {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.6rem 1rem;
}

.response-list h3,
.response-list p {
  margin: 0;
}

.response-list h3 {
  color: #6a583b;
}

.response-list .status {
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--gold);
  font-size: 0.78rem;
}

.response-list .note {
  grid-column: 1 / -1;
  font-style: italic;
}


/* ============================================================
   SUBMISSION POPUP
   ============================================================ */

.submit-popup {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: grid;
  place-items: center;
  padding: 1.25rem;
  background: rgba(70, 55, 32, 0.32);
  backdrop-filter: blur(4px);
  animation: submit-popup-fade 220ms ease forwards;
}

.submit-popup.is-hiding {
  animation: submit-popup-fade-out 250ms ease forwards;
}

.submit-popup__card {
  width: min(92vw, 440px);
  padding: 2.2rem 1.8rem;
  border: 1px solid rgba(169, 134, 66, 0.42);
  background: rgba(255, 253, 247, 0.97);
  box-shadow: 0 28px 80px rgba(95, 73, 37, 0.28);
  text-align: center;
  color: #6f5b33;
  transform: translateY(8px) scale(0.98);
  animation: submit-popup-card 260ms ease forwards;
}

.submit-popup__icon {
  width: 3.5rem;
  height: 3.5rem;
  margin: 0 auto 1rem;
  display: grid;
  place-items: center;
  border-radius: 999px;
  border: 1px solid rgba(169, 134, 66, 0.5);
  color: #b9883c;
  font-size: 2rem;
  line-height: 1;
}

.submit-popup__card h3 {
  margin: 0;
  color: #8f7138;
  font-family: "Cormorant Garamond", Georgia, serif;
  font-size: clamp(2rem, 6vw, 2.8rem);
  font-weight: 600;
  line-height: 1.05;
}

.submit-popup__card p {
  margin: 0.8rem 0 1.4rem;
  color: #6a583b;
  font-size: clamp(1.05rem, 3vw, 1.25rem);
}

.submit-popup__button {
  border: 1px solid #b9883c;
  background: #b9883c;
  color: var(--ivory);
  text-transform: uppercase;
  letter-spacing: 0.22em;
  padding: 0.85rem 1.4rem;
  cursor: pointer;
  transition: background 180ms ease, color 180ms ease, transform 180ms ease;
}

.submit-popup__button:hover {
  background: transparent;
  color: #b9883c;
  transform: translateY(-1px);
}

@keyframes submit-popup-fade {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes submit-popup-fade-out {
  from { opacity: 1; }
  to   { opacity: 0; }
}

@keyframes submit-popup-card {
  from {
    opacity: 0;
    transform: translateY(14px) scale(0.96);
  }

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

@media (max-width: 480px) {
  .submit-popup__card {
    padding: 2rem 1.35rem;
  }

  .submit-popup__button {
    width: 100%;
  }
}

/* ============================================================
   MOBILE RESPONSIVE FIXES
   ============================================================ */

/*
  Mobile now uses the exact same positioning logic as desktop.

  The card is always:
  - inside .envelope__card-wrapper
  - horizontally centered with left: 50% and translate: -50% 0
  - moved vertically only by the wrapper
  - rotated/scaled only by the img

  These media queries only adjust CSS variables for size/height.
*/

@media (max-width: 768px) {
  :root {
    /*
      Tablet/mobile base values.
      The actual closed/open/revealed values stay relative to these.
    */
    --card-y-base: 12%;
    --card-top-base: 7%;
    --card-height-base: 56%;
    --card-scale-base: 2;
  }

  .invite-stage {
    min-height: 100vh;
    min-height: 100svh;
    min-height: 100dvh;
    padding: 2rem 0.75rem 4rem;
    overflow: hidden;
  }

  .envelope {
    width: min(96vw, 620px);
  }

  .trigger-hint {
    font-size: 0.68rem;
    letter-spacing: 0.22em;
    padding: 0.6rem 0.9rem;
  }

  .scroll-cue {
    bottom: 1rem;
    font-size: 0.68rem;
    letter-spacing: 0.2em;
  }

  .option-grid,
  .stats,
  .event-details {
    grid-template-columns: 1fr;
  }

  .admin-header {
    display: grid;
    align-items: start;
  }

  .admin-header button {
    justify-self: start;
  }

  .response-list article {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  :root {
    /*
      Phone base values.
      Increase --card-scale-base for a bigger card.
      Increase --card-y-base to push the starting card lower.
    */
    --card-y-base: 14%;
    --card-top-base: 8%;
    --card-height-base: 56%;
    --card-scale-base: 1.9;
  }

  .invite-stage {
    padding: 1.25rem 0.5rem 3.25rem;
  }

  .envelope {
    width: 98vw;
  }

  .trigger-hint {
    font-size: 0.62rem;
    letter-spacing: 0.16em;
    padding: 0.55rem 0.75rem;
  }
}

@media (max-height: 720px) and (max-width: 480px) {
  :root {
    /*
      Short-phone base values.
      Slightly smaller so the final card does not get cropped.
    */
    --card-y-base: 15%;
    --card-top-base: 8%;
    --card-height-base: 54%;
    --card-scale-base: 1.75;
  }

  .invite-stage {
    padding-top: 0.75rem;
    padding-bottom: 2.5rem;
  }

  .envelope {
    width: 94vw;
  }
}