:root{
  --cream: #fbf1e4;
  --cream-deep: #f3e2c9;
  --champagne: #eccba0;
  --ink: #2b2016;
  --ink-soft: #55483a;
  --orange: #f9812a;
  --orange-deep: #e06a16;
  --gold-line: rgba(43,32,22,0.18);
  --serif-display: "Italiana", "Cormorant Garamond", serif;
  --serif-body: "Cormorant Garamond", serif;
  --sans: "Jost", sans-serif;
  --hand: "Caveat", cursive;
}

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

html{ scroll-behavior:smooth; overflow-x:hidden; width:100%; }

body{
  background:
    radial-gradient(120% 90% at 12% -10%, #fff8ec 0%, transparent 55%),
    radial-gradient(100% 80% at 90% 0%, #ffe9c9 0%, transparent 45%),
    radial-gradient(140% 100% at 50% 120%, var(--champagne) 0%, transparent 60%),
    linear-gradient(180deg, var(--cream) 0%, var(--cream-deep) 100%);
  color: var(--ink);
  font-family: var(--serif-body);
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

.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;
}

/* film grain texture */
.grain{
  position: fixed; inset: 0; pointer-events: none; z-index: 2;
  opacity: 0.05; mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* soft silk sheen glow that drifts */
.silk-glow{
  position: fixed; inset: -20%; pointer-events:none; z-index:0;
  background: conic-gradient(from 200deg at 70% 20%, transparent 0deg, rgba(255,255,255,0.5) 40deg, transparent 90deg, transparent 260deg, rgba(249,129,42,0.12) 300deg, transparent 340deg);
  animation: drift 22s linear infinite;
  filter: blur(2px);
}
@keyframes drift{
  0%{ transform: rotate(0deg); }
  100%{ transform: rotate(360deg); }
}

/* flowing silk thread lines */
.thread{
  position:absolute; z-index:0; pointer-events:none;
  opacity:0.35;
}
.thread--one{
  top:-10%; left:-15%; width:70vw; height:140vh;
  border-radius: 50%;
  background: linear-gradient(120deg, transparent 40%, rgba(249,129,42,0.10) 50%, transparent 60%);
  transform: rotate(12deg);
  animation: sway 16s ease-in-out infinite;
}
.thread--two{
  bottom:-20%; right:-20%; width:60vw; height:120vh;
  border-radius: 50%;
  background: linear-gradient(120deg, transparent 40%, rgba(255,255,255,0.5) 50%, transparent 60%);
  transform: rotate(-16deg);
  animation: sway 20s ease-in-out infinite reverse;
}
@keyframes sway{
  0%,100%{ transform: rotate(12deg) translateY(0); }
  50%{ transform: rotate(16deg) translateY(-30px); }
}

/* editorial column grid, inspired by magazine-style fashion layouts */
.grid-lines{
  position: fixed; inset:0; z-index:1; pointer-events:none;
}
.grid-lines span{
  position:absolute; top:0; bottom:0; width:1px;
  background: var(--gold-line); opacity:0.5;
}

/* right-edge vertical nav strip */
.edge-nav{
  position: fixed; top:0; right: 1.4rem; bottom:0; z-index:4;
  display:flex; flex-direction:column; align-items:center; justify-content:center;
  pointer-events:none;
}
.edge-nav__group{
  display:flex; flex-direction:column; align-items:center; gap: 1.6rem;
}
.edge-nav__group span,
.edge-nav__group a{
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  font-family: var(--sans);
  font-size: 0.68rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-soft);
  text-decoration: none;
  pointer-events:auto;
  transition: color 0.25s ease;
}
.edge-nav__group a:hover{ color: var(--orange-deep); }
.edge-nav__group--social{ gap: 1.1rem; }

.topbar{
  position: relative; z-index: 6;
  display:flex; justify-content:space-between; align-items:center;
  padding: 2.2rem 3rem;
  font-family: var(--sans);
}
.topbar__mark{
  font-family: var(--serif-display);
  letter-spacing: 0.35em;
  font-size: 0.95rem;
  color: var(--ink);
}
.topbar__tag{
  font-size: 0.65rem;
  letter-spacing: 0.25em;
  color: var(--ink-soft);
  text-transform: uppercase;
}

.hero{
  position: relative; z-index: 3;
  display:flex; justify-content:center;
  padding: 1rem 1.5rem 4rem;
}
.hero__inner{
  max-width: 760px;
  width:100%;
  display:flex; flex-direction:column; align-items:center;
  text-align:center;
}

.eyebrow{
  margin-top: 1.6rem;
  display:flex; align-items:center; gap: 0.9rem;
  font-family: var(--sans);
  font-size: 0.72rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--orange-deep);
  animation: reveal 1.1s cubic-bezier(.16,1,.3,1) 0.15s both;
}
.eyebrow__line{ width: 34px; height:1px; background: var(--orange); opacity:0.6; }

/* ---------- Wax-sealed envelope reveal ---------- */
.envelope-scene{
  margin-top: 2.4rem;
  display:flex; flex-direction:column; align-items:center;
  animation: reveal 1.1s cubic-bezier(.16,1,.3,1) 0.25s both;
}

.envelope{
  position: relative;
  width: clamp(280px, 82vw, 480px);
  aspect-ratio: 8 / 5.6;
  perspective: 1400px;
  animation: envelope-in 1s cubic-bezier(.16,1,.3,1) 0.3s both, envelope-idle 5s ease-in-out 1.4s infinite;
}
.envelope.is-open{ animation: envelope-in 1s cubic-bezier(.16,1,.3,1) 0.3s both; }

@keyframes envelope-in{
  from{ opacity:0; transform: translateY(24px) scale(0.96); }
  to{ opacity:1; transform: translateY(0) scale(1); }
}
@keyframes envelope-idle{
  0%,100%{ transform: translateY(0) rotate(0deg); }
  50%{ transform: translateY(-6px) rotate(-0.4deg); }
}

.envelope__pocket{
  position:absolute; inset: 5%;
  border-radius: 4px;
  background: linear-gradient(180deg, #d9c093, #e9d4ac);
  z-index: 1;
}

.letter{
  position:absolute; left:7%; right:7%; bottom:6%;
  height: 88%;
  overflow: hidden;
  background: #fffbf3;
  border-radius: 3px 3px 8px 8px;
  box-shadow: 0 14px 30px rgba(43,32,22,0.28);
  padding: clamp(0.8rem, 3.4vw, 2.2rem) clamp(0.9rem, 4vw, 1.9rem);
  display:flex; flex-direction:column; align-items:center; justify-content:center; gap:0.4rem;
  text-align:center;
  z-index: 2;
  transform: translateY(6%);
  transition: transform 1.05s cubic-bezier(.16,1,.3,1) 0.75s;
}
.envelope.is-open .letter{
  transform: translateY(-52%);
  z-index: 5;
  overflow: visible;
  transition: transform 1.05s cubic-bezier(.16,1,.3,1) 0.75s, z-index 0s 0.75s;
}

.letter__mark{
  font-family: var(--serif-display);
  color: var(--orange);
  font-size: 1.1rem;
  letter-spacing: 0.1em;
}
.letter__eyebrow{
  font-family: var(--sans);
  font-size: 0.62rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.letter__headline{
  font-family: var(--serif-display);
  font-weight: 400;
  font-size: clamp(1.35rem, 5vw, 2.5rem);
  line-height: 1.1;
  color: var(--ink);
}
.letter__headline em{
  font-style: italic;
  font-family: var(--serif-body);
  color: var(--orange-deep);
}
.letter__body{
  max-width: 30ch;
  font-size: clamp(0.78rem, 2.2vw, 1rem);
  line-height: 1.5;
  color: var(--ink-soft);
}
.letter__sign{
  margin-top: 0.2rem;
  font-family: var(--serif-body);
  font-style: italic;
  font-size: clamp(0.76rem, 2vw, 0.9rem);
  color: var(--ink-soft);
}

.envelope__body{
  position:absolute; inset:0;
  border-radius: 6px;
  background: linear-gradient(160deg, #f3e0bd, #ecd4a8);
  box-shadow: 0 30px 60px rgba(43,32,22,0.24), 0 6px 16px rgba(224,106,22,0.12);
  z-index: 3;
  overflow: hidden;
}
.envelope__body::before,
.envelope__body::after{
  content:""; position:absolute; top:0; bottom:0; width:52%;
}
.envelope__body::before{ left:0; background: linear-gradient(115deg, rgba(43,32,22,0.06), transparent 55%); }
.envelope__body::after{ right:0; background: linear-gradient(245deg, rgba(43,32,22,0.06), transparent 55%); }

.envelope__address{
  position:absolute; z-index:4;
  left:9%; top:60%; width:44%;
  font-family: var(--hand);
  color: rgba(43,32,22,0.78);
  text-align:left;
  line-height:1.1;
  transform: rotate(-2deg);
  transition: opacity 0.4s ease;
  pointer-events:none;
}
.envelope__address span{
  display:block;
  font-size: clamp(0.95rem, 3vw, 1.2rem);
  opacity:0.75;
}
.envelope__address{ font-size: clamp(1.3rem, 5vw, 1.9rem); }
.envelope.is-open .envelope__address{ opacity:0; }

.envelope__flap{
  position:absolute; top:0; left:0;
  width:100%; height:62%;
  background: linear-gradient(135deg, #f6dfb4, #ecce9e);
  clip-path: polygon(0 0, 100% 0, 50% 100%);
  transform-origin: top center;
  transform: rotateX(0deg);
  transition: transform 0.9s cubic-bezier(.6,.05,.32,1) 0.32s;
  z-index: 4;
  box-shadow: inset 0 -10px 16px -10px rgba(43,32,22,0.25);
}
.envelope.is-open .envelope__flap{
  transform: rotateX(-108deg);
}

.seal{
  position:absolute; top:60%; left:50%;
  width: 17%; aspect-ratio: 1/1;
  transform: translate(-50%,-50%);
  z-index: 5;
  border:none; background:transparent; padding:0;
  cursor:pointer;
}
.seal:focus-visible{ outline: 2px solid var(--orange-deep); outline-offset: 4px; border-radius:50%; }
.seal:disabled{ cursor: default; }
.seal__piece{
  position:absolute; inset:0;
  border-radius: 50%;
  background: radial-gradient(circle at 34% 28%, #ff9c50, var(--orange) 55%, var(--orange-deep) 100%);
  box-shadow:
    inset 0 2px 3px rgba(255,255,255,0.45),
    inset 0 -7px 10px rgba(43,20,10,0.3),
    0 8px 16px rgba(43,32,22,0.35);
  display:flex; align-items:center; justify-content:center;
  transition: transform 0.6s cubic-bezier(.34,1.4,.64,1), opacity 0.5s ease;
}
.seal__piece::before{
  content:"K";
  font-family: var(--serif-display);
  font-size: 42%;
  color: rgba(43,20,10,0.7);
}
.seal__piece--left{ clip-path: inset(0 50% 0 0); }
.seal__piece--right{ clip-path: inset(0 0 0 50%); }
.seal:not(:disabled):hover .seal__piece{ transform: scale(1.05); }

.envelope.is-open .seal{ pointer-events:none; }
.envelope.is-open .seal__piece--left{
  transform: translate(-38%,-22%) rotate(-24deg);
  opacity: 0;
}
.envelope.is-open .seal__piece--right{
  transform: translate(38%,-18%) rotate(20deg);
  opacity: 0;
}

.envelope-hint{
  margin-top: 1.3rem;
  font-family: var(--sans);
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-soft);
  opacity: 0.75;
  transition: opacity 0.4s ease;
}
.envelope-hint.is-hidden{ opacity: 0; }

.pillars{
  margin-top: 4.2rem;
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  width: 100%;
  animation: reveal 1.1s cubic-bezier(.16,1,.3,1) 0.8s both;
}
.pillar{
  padding: 1.4rem 0.6rem;
  border-top: 1px solid var(--gold-line);
  display:flex; flex-direction:column; align-items:center;
  transition: transform 0.35s ease;
}
.pillar:hover{ transform: translateY(-4px); }
.pillar__icon{
  width: 26px; height:26px;
  color: var(--orange);
  margin-bottom: 0.7rem;
}
.pillar h3{
  font-family: var(--sans);
  font-weight: 500;
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink);
  margin-bottom: 0.5rem;
}
.pillar p{
  font-size: 0.92rem;
  line-height: 1.4;
  color: var(--ink-soft);
}

.origin{
  margin-top: 3rem;
  display:flex; align-items:center; gap: 0.7rem; flex-wrap:wrap; justify-content:center;
  font-family: var(--sans);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-soft);
  animation: reveal 1.1s cubic-bezier(.16,1,.3,1) 0.9s both;
}
.origin .dot{ color: var(--orange); }

@keyframes reveal{
  from{ opacity:0; transform: translateY(16px); }
  to{ opacity:1; transform: translateY(0); }
}

.footer{
  position: relative; z-index: 3;
  padding: 2.5rem 1.5rem 3rem;
  display:flex; flex-direction:column; align-items:center; gap: 1rem;
}
.footer__rule{
  width: 46px; height:1px; background: var(--orange); opacity:0.5;
}
.footer__tagline{
  font-family: var(--serif-display);
  letter-spacing: 0.14em;
  font-size: 0.95rem;
  color: var(--ink);
  text-transform: uppercase;
}
.footer__meta{
  display:flex; align-items:center; gap: 0.7rem; flex-wrap:wrap; justify-content:center;
  font-family: var(--sans);
  font-size: 0.75rem;
  color: var(--ink-soft);
}
.footer__link{ color: var(--ink-soft); text-decoration:none; border-bottom: 1px solid transparent; transition: color 0.25s, border-color 0.25s; }
.footer__link:hover{ color: var(--orange-deep); border-color: var(--orange-deep); }

@media (max-width: 900px){
  .edge-nav{ display:none; }
}

@media (max-width: 760px){
  .pillars{ grid-template-columns: repeat(2, 1fr); }
  .topbar{ padding: 1.6rem 1.4rem; }
  .grid-lines span:nth-child(2),
  .grid-lines span:nth-child(4){ display:none; }
}

@media (prefers-reduced-motion: reduce){
  .silk-glow, .thread, .envelope{ animation: none !important; }
  *{ animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}