/* ============================================================
   Lettera · stile condiviso dalle versioni 2 (si piega) e 4 (si legge)
   Carta avorio, verde cipresso, oro. Cormorant + Pinyon Script.
   ============================================================ */
:root {
  --paper: #FBF6EA;
  --table: #EFE5D1;
  --ink: #2E2A22;
  --soft: #6B6352;
  --green: #4A5A43;
  --green-d: #33402E;
  --gold: #B8975A;
  --gold-l: #E9D9AE;
  --serif: "Cormorant Garamond", Georgia, "Times New Roman", serif;
  --sc: "Cormorant SC", "Cormorant Garamond", Georgia, serif;
  --script: "Pinyon Script", "Brush Script MT", cursive;
  --ease: cubic-bezier(.32, .72, 0, 1);
  --desk: radial-gradient(120% 90% at 50% 38%, #F8F2E6 0%, #EFE5D1 58%, #E2D4B6 100%);

  /* modulo RSVP condiviso (assets/rsvp.css) */
  --rs-ink: var(--ink); --rs-soft: var(--soft); --rs-label: var(--green); --rs-accent: var(--green);
  --rs-line: rgba(74, 90, 67, .4); --rs-hair: rgba(74, 90, 67, .3); --rs-err: #A2482F;
  --rs-seg-bg: rgba(74, 90, 67, .07); --rs-thumb: linear-gradient(135deg, #5E7356, #3B4A35); --rs-on-thumb: #F7F1E5;
  --rs-chip-on: linear-gradient(135deg, #5E7356, #3B4A35); --rs-on-ink: #F7F1E5;
  --rs-serif: var(--serif); --rs-sans: var(--serif); --rs-ease: var(--ease);
}

*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; overflow-x: clip; background: #EFE5D1; }
html.is-locked, html.is-locked body { overflow: hidden; height: 100%; }
body {
  margin: 0; color: var(--ink); overflow-x: clip;
  font: 500 clamp(1.1rem, .3vw + 1.02rem, 1.28rem)/1.6 var(--serif);
  -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
}
body::before { content: ""; position: fixed; inset: 0; z-index: -1; background: var(--desk); }
img { display: block; max-width: 100%; height: auto; }
h1, h2, h3, p, figure, ol, ul { margin: 0; padding: 0; }
ol, ul { list-style: none; }
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }
em, i { font-style: italic; }
:focus-visible { outline: 1.5px solid var(--green); outline-offset: 4px; border-radius: 6px; }

/* grana di carta: fissa, leggera, non cliccabile */
.grain {
  position: fixed; inset: 0; z-index: 120; pointer-events: none; opacity: .05;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='240'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 .32 0 0 0 0 .24 0 0 0 0 .12 0 0 0 .9 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---------- bottoni ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 16px; height: 56px; padding: 0 8px 0 28px;
  border-radius: 999px; border: 1px solid rgba(233, 217, 174, .6);
  background: linear-gradient(135deg, #5C7055, #3A4934); color: #F6EFDC;
  font: 500 .86rem/1 var(--sc); letter-spacing: .2em; text-transform: uppercase;
  box-shadow: 0 18px 30px -18px rgba(40, 55, 35, .85), inset 0 1px 0 rgba(255, 255, 255, .2);
  transition: transform .6s var(--ease), box-shadow .6s var(--ease), background .6s var(--ease);
}
.btn__ico { width: 40px; height: 40px; border-radius: 50%; display: grid; place-items: center; background: rgba(255, 255, 255, .15); transition: transform .6s var(--ease); }
.btn__ico svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.3; stroke-linecap: round; stroke-linejoin: round; }
.btn:hover .btn__ico { transform: translate(2px, -1px) scale(1.06); }
.btn:active { transform: scale(.98); }
.btn--ghost { background: transparent; color: var(--green); border-color: rgba(74, 90, 67, .5); box-shadow: none; }
.btn--ghost .btn__ico { background: rgba(74, 90, 67, .12); }
.sec--count .btn, .sec--foot .btn { background: linear-gradient(135deg, #FBF6EA, #E9DDC1); color: var(--green-d); border-color: rgba(233, 217, 174, .8); }
.sec--count .btn--ghost { background: transparent; color: var(--gold-l); border-color: rgba(233, 217, 174, .55); }
.sec--count .btn--ghost .btn__ico { background: rgba(233, 217, 174, .16); }
.link { color: var(--green); border-bottom-color: rgba(74, 90, 67, .4); font-family: var(--sc); font-size: .8rem; letter-spacing: .24em; }

/* ============================================================
   LA BUSTA
   ============================================================ */
.intro { position: fixed; inset: 0; z-index: 100; display: grid; place-items: center; overflow: hidden; background: var(--desk); }
html:not(.motion) .intro { display: none; }
.intro__stage { display: grid; justify-items: center; gap: clamp(14px, 3.2vh, 34px); padding: 16px; max-width: 100%; }
.intro__eyebrow { font: 500 clamp(.82rem, 1.6vw, 1rem)/1 var(--sc); letter-spacing: .32em; text-transform: uppercase; color: var(--green); padding-left: .32em; }
.intro__names { font: 400 clamp(2.9rem, 8.2vw, 5.4rem)/1.05 var(--script); color: var(--ink); text-align: center; }
.intro__names i { font-style: normal; color: var(--gold); margin: 0 .08em; }
.intro__hint { font: italic 500 1.1rem/1 var(--serif); color: var(--soft); animation: hint 2.6s var(--ease) infinite; }
@keyframes hint { 0%, 100% { opacity: .55; transform: translateY(0); } 50% { opacity: 1; transform: translateY(-3px); } }
@media (max-height: 560px) { .intro__eyebrow, .intro__names { display: none; } }

.env { position: relative; width: min(88vw, 760px, calc((100svh - 230px) * 1.5)); aspect-ratio: 3 / 2; perspective: 1600px; }
@media (max-width: 700px) { .env { width: min(84vw, 360px, calc((100svh - 270px) * .83)); aspect-ratio: 5 / 6; } }
.env > * { position: absolute; }
.env__back { inset: 0; z-index: 0; border-radius: 3px; background: linear-gradient(165deg, #F3EAD8, #E7DBC0); box-shadow: 0 50px 70px -38px rgba(60, 40, 10, .55), inset 0 2px 0 rgba(255, 255, 255, .7); }
.env__letter {
  left: 7%; right: 7%; top: 6%; height: 60%; z-index: 2; border-radius: 2px; container-type: inline-size;
  background: linear-gradient(180deg, #FFFDF8, #FBF5E8); box-shadow: 0 6px 18px -8px rgba(60, 40, 10, .45); will-change: transform;
}
.env__letter::after { content: ""; position: absolute; inset: 2.2cqw; border: 1px solid rgba(184, 151, 90, .55); pointer-events: none; }
.env__front { left: 0; top: 0; z-index: 3; }
.env__flap { left: 0; top: 0; z-index: 5; transform-style: preserve-3d; transform-origin: 50% 0; will-change: transform; }
.env__flap svg { position: absolute; left: 0; top: 0; display: block; backface-visibility: hidden; -webkit-backface-visibility: hidden; }
.env__flap-out { filter: drop-shadow(0 12px 12px rgba(70, 50, 20, .3)); }
.env__flap-in { transform: rotateY(180deg); }

.seal {
  z-index: 6; left: 0; top: 0; width: var(--seal, 84px); height: var(--seal, 84px); padding: 0; border: 0;
  border-radius: 52% 48% 50% 50% / 50% 52% 48% 50%;
  background: radial-gradient(circle at 34% 28%, #7E9274 0%, #55674C 36%, #33402E 100%);
  box-shadow: 0 12px 20px -8px rgba(30, 40, 25, .7), inset 0 2px 3px rgba(255, 255, 255, .3), inset 0 -5px 9px rgba(0, 0, 0, .35);
  color: #EBDDB4; display: grid; place-items: center; transition: transform .6s var(--ease);
}
.seal::before { content: ""; position: absolute; inset: 11%; border-radius: 50%; border: 1px solid rgba(235, 221, 180, .55); box-shadow: inset 0 1px 2px rgba(0, 0, 0, .35), 0 1px 0 rgba(255, 255, 255, .12); }
.seal::after { content: ""; position: absolute; inset: -7px; border-radius: 50%; border: 1px solid rgba(74, 90, 67, .55); animation: ripple 2.6s var(--ease) infinite; pointer-events: none; }
@keyframes ripple { 0% { transform: scale(.82); opacity: .9; } 100% { transform: scale(1.55); opacity: 0; } }
.seal__mono { position: relative; font: 500 calc(var(--seal, 84px) * .3)/1 var(--serif); letter-spacing: .02em; text-shadow: 0 1px 0 rgba(0, 0, 0, .4), 0 -1px 0 rgba(255, 255, 255, .18); }
.seal__mono i { margin: 0 .06em; opacity: .85; }
.seal:hover { transform: scale(1.06); }

/* ---------- facciata della lettera (nel biglietto e nel primo foglio) ---------- */
.front { position: absolute; inset: 0; display: grid; place-content: center; justify-items: center; gap: 1.5cqw; padding: 0 6cqw; text-align: center; }
.front .mono {
  display: inline-grid; grid-auto-flow: column; align-items: center; gap: .24em; padding: 1.2cqw 3cqw;
  border: 1px solid rgba(184, 151, 90, .75); border-radius: 50% / 58%; font: 500 4.4cqw/1 var(--serif); letter-spacing: .06em; color: var(--green);
}
.front .mono i { color: var(--gold); font-size: .8em; }
.front .eyebrow { font: 500 max(8.5px, 2.15cqw)/1.5 var(--sc); letter-spacing: .3em; text-transform: uppercase; color: var(--green); padding-left: .3em; }
.front .names { display: block; white-space: nowrap; font: 400 10.4cqw/1.04 var(--script); color: var(--ink); }
.front .names i { font-style: normal; color: var(--gold); font-size: .62em; margin: 0 .12em; }
.front .datefine { font: 500 3.7cqw/1.2 var(--serif); letter-spacing: .05em; }

/* ============================================================
   PAGINA E SEZIONI IN FONDO
   ============================================================ */
.motion .page { opacity: 0; }
.sections { position: relative; width: min(760px, calc(100% - 28px)); margin: 0 auto; padding: 8px 0 clamp(60px, 10vh, 120px); }
.sec {
  position: relative; text-align: center; margin-top: 16px;
  padding: clamp(48px, 9vw, 88px) clamp(26px, 7vw, 76px);
  background: linear-gradient(180deg, #FFFCF5, #FBF6EA);
  box-shadow: 0 34px 60px -38px rgba(70, 50, 20, .55), inset 0 1px 0 rgba(255, 255, 255, .9);
}
.sec::after { content: ""; position: absolute; inset: clamp(10px, 2vw, 16px); border: 1px solid rgba(184, 151, 90, .45); pointer-events: none; }
.gsap-ok .rv { opacity: 0; }

.sec--count, .sec--foot { color: #F4EDDC; background: linear-gradient(180deg, #55684D, #3B4A35); }
.sec--count::after, .sec--foot::after { border-color: rgba(233, 217, 174, .5); }
.sec--rsvp { background: linear-gradient(180deg, #F8F1E1, #F2E9D4); }
.sec--place { background: linear-gradient(180deg, #FFFCF5, #F8F1E1); }

.eyebrow { font: 500 clamp(.82rem, 1.7vw, .98rem)/1.6 var(--sc); letter-spacing: .3em; text-transform: uppercase; color: var(--green); padding-left: .3em; }
.sec--count .eyebrow, .sec--foot .eyebrow { color: var(--gold-l); }
.h2 { margin-top: 12px; font: 500 clamp(2.3rem, 6.4vw, 3.5rem)/1.08 var(--serif); }
.h2 em { color: var(--green); }
.lead { margin: 16px auto 0; max-width: 28em; color: var(--soft); }

/* conto alla rovescia */
.cd { display: grid; grid-template-columns: repeat(4, 1fr); gap: clamp(8px, 2vw, 18px); margin: 28px auto 12px; max-width: 580px; }
.cd > div { display: grid; gap: 8px; padding: 18px 2px 14px; border: 1px solid rgba(233, 217, 174, .45); }
.cd b { display: inline-block; font: 500 clamp(2.2rem, 8.4vw, 3.8rem)/1 var(--serif); color: #FBF3DC; font-variant-numeric: lining-nums tabular-nums; }
.cd span { font: 500 .68rem/1 var(--sc); letter-spacing: .22em; text-transform: uppercase; color: var(--gold-l); }
.cd__note { font: italic 500 1.2rem/1.4 var(--serif); color: var(--gold-l); }
.cd__title { margin-top: 38px; font: 500 clamp(1.7rem, 4.6vw, 2.3rem)/1.2 var(--serif); }
.actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 14px; margin-top: 22px; }

/* il luogo */
.addr { margin-top: 14px; font: 500 1.3rem/1.5 var(--serif); }
.prints { display: grid; grid-template-columns: 1.15fr .85fr; gap: clamp(14px, 3vw, 28px); align-items: center; margin: 32px 0 36px; }
.print { padding: clamp(7px, 1.5vw, 11px); background: #fff; box-shadow: 0 26px 40px -24px rgba(60, 40, 10, .6); }
.print img { width: 100%; height: 100%; object-fit: cover; }
.print--a { transform: rotate(-2.2deg); aspect-ratio: 4 / 3; }
.print--b { transform: rotate(2.6deg); aspect-ratio: 3 / 4; }

/* programma e regalo (facoltativi) */
.prog { margin: 34px 0 0; display: grid; gap: 30px; text-align: left; position: relative; padding-left: 34px; }
.prog::before { content: ""; position: absolute; left: 4px; top: 8px; bottom: 8px; width: 1px; background: rgba(184, 151, 90, .6); }
.prog__item { position: relative; display: grid; gap: 4px; }
.prog__item::before { content: ""; position: absolute; left: -34px; top: .55em; width: 9px; height: 9px; transform: rotate(45deg); background: #fff; border: 1px solid var(--gold); }
.prog__time { font: 500 .8rem/1.2 var(--sc); letter-spacing: .3em; color: var(--green); }
.prog__title { font: 500 clamp(1.6rem, 4vw, 2rem)/1.15 var(--serif); }
.prog__text { color: var(--soft); }
.giftbox { margin: 28px auto 0; display: grid; justify-items: center; gap: 10px; padding: clamp(22px, 4vw, 36px); border: 1px solid rgba(74, 90, 67, .35); max-width: 520px; }
.giftbox__k { font: 500 .78rem/1 var(--sc); letter-spacing: .34em; color: var(--green); }
.giftbox__iban { font: 500 clamp(1.1rem, 3vw, 1.5rem)/1.4 var(--serif); letter-spacing: .06em; overflow-wrap: anywhere; }
.giftbox__h { color: var(--soft); margin-bottom: 10px; }

/* RSVP */
.rsvp__form, .done { margin-top: 34px; text-align: left; }
.done { text-align: center; }
.field label, .rsvp__label { font-size: .8rem; letter-spacing: .26em; font-weight: 600; }
.field input, .field textarea { font-size: 1.3rem; font-weight: 500; }
.chip span { font-size: 1rem; }
.step__val { font-size: 2.4rem; }

/* chiusura */
.foot__names { margin-top: 10px; font: 400 clamp(3rem, 11vw, 4.8rem)/1.1 var(--script); }
.foot__names i { font-style: normal; color: var(--gold-l); }
.foot__date { margin-top: 6px; font: 500 .9rem/1 var(--sc); letter-spacing: .5em; color: var(--gold-l); padding-left: .5em; }
.foot__actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 18px 34px; margin-top: 34px; }
.sec--foot .link { color: var(--gold-l); border-bottom-color: rgba(233, 217, 174, .5); }

@media (max-width: 560px) {
  .btn { height: 54px; padding-left: 24px; letter-spacing: .16em; }
  .actions .btn { width: 100%; justify-content: space-between; }
  .prints { grid-template-columns: 1fr 1fr; }
  .cd span { letter-spacing: .12em; font-size: .6rem; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; animation-delay: 0s !important; transition-duration: .001ms !important; }
}