:root {
  --paper: #fffaf3;
  --paper-warm: #fff6ec;
  --peach: #ef9990;
  --peach-dark: #d77570;
  --rose-pale: #f5d3c7;
  --ink: #59473f;
  /* #7f6d65 gốc chỉ đạt 3.75:1 trên nền blush — hạ sáng để đạt WCAG AA */
  --ink-soft: #6f5d55;
  --gold: #aa8356;
  /* biến thể đủ tương phản của peach-dark/gold cho chữ nhỏ (xem design-qa.md) */
  --peach-ink: #bf504b;
  --gold-ink: #7d5b2c;
  --line: rgba(215, 117, 112, .55);
  /* trái tim dùng cho mark ngày cưới — mask nên co giãn theo ô, không cần kích thước cứng */
  --heart-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 88'%3E%3Cpath d='M50 88C18 64 2 46 2 28 2 12 14 2 27 2c9 0 18 5 23 13 5-8 14-13 23-13 13 0 25 10 25 26 0 18-16 36-48 60z'/%3E%3C/svg%3E");
  --serif: "Cormorant Garamond", Georgia, serif;
  --script: "Dancing Script", cursive;
  --sans: "Be Vietnam Pro", sans-serif;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-width: 320px;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.7;
  overflow-x: hidden;
}
html.is-locked, body.is-closed { overflow: hidden; height: 100%; }
/* Anchor không bị nav fixed che */
:target, #invitation, #details, #calendar, #rsvp { scroll-margin-top: 88px; }
button, input, select, textarea { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
a { color: inherit; }
::selection { background: var(--rose-pale); color: var(--ink); }

.skip-link {
  position: fixed;
  z-index: 100;
  top: -5rem;
  left: 1rem;
  padding: .7rem 1rem;
  background: var(--ink);
  color: #fff;
}
.skip-link:focus { top: 1rem; }

.cover {
  position: fixed;
  z-index: 50;
  inset: 0;
  display: grid;
  place-items: center;
  min-height: 100svh;
  padding: 1.5rem;
  background: #eadfd6;
  perspective: 1200px;
  transition: opacity .65s ease, visibility .65s ease;
}
.cover::before {
  content: "";
  position: absolute;
  inset: 1rem;
  border: 1px solid rgba(255, 255, 255, .8);
  pointer-events: none;
}
.cover-card {
  position: relative;
  width: min(440px, 86vw);
  aspect-ratio: 12 / 17;
  overflow: hidden;
  background: var(--paper);
  border: 1px solid var(--peach);
  border-radius: 16px;
  box-shadow: 0 24px 70px rgba(89, 71, 63, .16);
  transform: translateY(-.8rem);
  transition: transform .65s ease, opacity .45s ease;
  animation: card-arrive .9s cubic-bezier(.2,.8,.2,1) both;
  transform-origin: 50% 80%;
}
.cover-content {
  position: relative;
  z-index: 2;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 4rem 2rem;
  text-align: center;
}
.cover-flower { position: absolute; z-index: 1; pointer-events: none; }
.cover-flower--top { width: 86%; top: -5%; left: -34%; transform: rotate(14deg); animation: flower-bloom-left 1.25s .25s cubic-bezier(.2,.8,.2,1) both, flora-float 6s 1.5s ease-in-out infinite alternate; }
.cover-flower--bottom { width: 65%; right: -27%; bottom: -10%; transform: rotate(-14deg); animation: flower-bloom-right 1.25s .38s cubic-bezier(.2,.8,.2,1) both, flora-float 7s 1.7s ease-in-out infinite alternate-reverse; }
.monogram {
  margin: 0;
  color: #8d735d;
  font-family: var(--serif);
  font-size: 1.65rem;
  font-weight: 500;
  letter-spacing: -.08em;
}
.monogram span { margin: 0 .28rem; color: var(--peach); font-size: .7em; }
.kicker, .section-label, .overline {
  margin: 1.3rem 0 .7rem;
  color: var(--gold-ink);
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .18em;
  text-transform: uppercase;
}
.cover-title {
  margin: 0;
  max-width: 310px;
  color: var(--peach-ink);
  font-family: var(--script);
  font-size: clamp(2.85rem, 10vw, 4.4rem);
  font-weight: 500;
  line-height: 1.06;
}
.cover-title small { display: block; font-family: var(--serif); font-size: .58em; line-height: 1.2; }
.cover-content > * { animation: cover-copy-in .7s cubic-bezier(.2,.8,.2,1) both; }
.cover-content > *:nth-child(1) { animation-delay: .35s; }
.cover-content > *:nth-child(2) { animation-delay: .46s; }
.cover-content > *:nth-child(3) { animation-delay: .57s; }
.cover-content > *:nth-child(4) { animation-delay: .68s; }
.cover-content > *:nth-child(5) { animation-delay: .79s; }
/* trang cá nhân hoá chèn thêm dòng tên khách → có 6 phần tử */
.cover-content > *:nth-child(6) { animation-delay: .90s; }

/* Tên người nhận (chỉ có trên link riêng của từng khách) */
/* Serif thường thay vì uppercase: tên tiếng Việt có dấu khi viết hoa vừa rộng
   vừa khó đọc, tên dài sẽ đội bìa lên 3 dòng ở màn 320px. */
.guest-cover {
  max-width: 26ch;
  margin: .3rem 0 .1rem;
  color: var(--ink-soft);
  font-family: var(--serif);
  font-size: clamp(.95rem, 3.4vw, 1.08rem);
  line-height: 1.4;
  text-wrap: balance;
}
.guest-cover b { color: var(--peach-ink); font-weight: 500; }
.guest-hero {
  margin: -.4rem 0 1.6rem;
  color: var(--ink);
  font-family: var(--serif);
  font-size: clamp(1.35rem, 4.6vw, 1.9rem);
  font-weight: 500;
  letter-spacing: .01em;
}
.cover-date { margin: 1rem 0 1.5rem; font-size: .78rem; letter-spacing: .2em; }
.open-button {
  min-height: 48px;
  border: 1px solid var(--peach-ink);
  border-radius: 999px;
  padding: .72rem 1.55rem;
  background: rgba(255, 250, 243, .86);
  color: var(--peach-ink);
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background-color .25s ease, color .25s ease, transform .25s ease;
}
.open-button:hover { background: var(--peach-ink); color: #fff; transform: translateY(-2px); }
.cover-hint {
  position: absolute;
  bottom: 1.4rem;
  margin: 0;
  color: var(--ink-soft);
  font-size: .75rem;
  letter-spacing: .12em;
  text-transform: uppercase;
}
body.opened .cover { opacity: 0; visibility: hidden; pointer-events: none; }
body.opened .cover-card { transform: translateY(-2.2rem) rotateX(8deg) scale(.9); opacity: 0; }
body.opened .cover-flower--top { translate: -18px -18px; opacity: 0; transition: translate .55s ease, opacity .45s ease; }
body.opened .cover-flower--bottom { translate: 18px 18px; opacity: 0; transition: translate .55s ease, opacity .45s ease; }

/* visibility:hidden để nội dung aria-hidden không nhận được tab khi cover còn mở */
.site {
  opacity: 0;
  visibility: hidden;
  transform: scale(.995);
  transition: opacity .8s ease .15s, transform 1s cubic-bezier(.2,.8,.2,1) .15s, visibility 0s linear .95s;
}
body.opened .site {
  opacity: 1;
  visibility: visible;
  transform: none;
  transition: opacity .8s ease .15s, transform 1s cubic-bezier(.2,.8,.2,1) .15s, visibility 0s;
}
.nav {
  position: fixed;
  z-index: 20;
  inset: 0 0 auto;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 clamp(1.2rem, 4vw, 4rem);
  background: rgba(255, 250, 243, .92);
  border-bottom: 1px solid rgba(215, 117, 112, .23);
  backdrop-filter: blur(12px);
}
/* absolute để không tham gia flex layout của .nav */
.nav-progress {
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 100%;
  height: 2px;
  background: var(--peach-ink);
  transform: scaleX(var(--progress, 0));
  transform-origin: 0 50%;
  pointer-events: none;
}
/* min-height 44px: vùng chạm tối thiểu theo iOS HIG — trước đó link nav chỉ cao 20px */
/* gap thay cho khoảng trắng: flex container bỏ qua text node trắng giữa các item */
.nav-brand { display: inline-flex; align-items: center; gap: .4rem; min-height: 44px; font-family: var(--serif); font-size: 1.25rem; text-decoration: none; }
.nav-brand span { color: var(--peach); }
.nav nav { display: flex; align-items: center; gap: clamp(1rem, 3vw, 2.6rem); }
.nav nav a { display: inline-flex; align-items: center; min-height: 44px; font-size: .75rem; font-weight: 500; letter-spacing: .1em; text-decoration: none; text-transform: uppercase; }
.nav-rsvp { border: 1px solid var(--peach-ink); border-radius: 999px; padding: .5rem 1rem; color: var(--peach-ink); }

.hero {
  position: relative;
  min-height: 100svh;
  display: grid;
  place-items: center;
  overflow: hidden;
  padding: 8rem 1.25rem 5rem;
  background: var(--paper);
}
.hero::before, .hero::after {
  content: "";
  position: absolute;
  pointer-events: none;
}
.hero::before { inset: 5.5rem 2rem 2rem; border: 1px solid var(--line); border-radius: 10px; }
.hero::after { inset: 6rem 2.5rem 2.5rem; border: 1px solid rgba(170, 131, 86, .2); border-radius: 6px; }
.hero-frame { position: relative; z-index: 3; max-width: 760px; text-align: center; }
.hero-copy, .honor { margin: 0 auto 2rem; color: var(--ink-soft); font-family: var(--serif); font-size: clamp(1.05rem, 2vw, 1.25rem); line-height: 1.55; }
.couple {
  margin: .25rem 0;
  color: var(--peach-ink);
  font-family: var(--script);
  font-size: clamp(3.4rem, 8vw, 7rem);
  font-weight: 500;
  line-height: .92;
}
.couple-name { display: block; }
.couple-family { display: block; margin-bottom: .45rem; color: var(--ink); font-family: var(--serif); font-size: .24em; font-weight: 500; letter-spacing: .09em; text-transform: uppercase; }
.couple-name + .couple-family { margin-top: .1rem; }
.couple-heart { display: block; margin: -.25rem 0; color: var(--peach); font-family: var(--serif); font-size: 2rem; line-height: 1.6; }
.hero .honor { margin-top: 2.25rem; }
.text-link { display: inline-flex; align-items: center; min-height: 44px; gap: .75rem; color: var(--peach-ink); font-size: .75rem; font-weight: 600; letter-spacing: .12em; text-decoration: none; text-transform: uppercase; }
.text-link span { font-size: 1.1rem; }
.hero-flower { position: absolute; z-index: 1; pointer-events: none; }
.hero-flower--left { width: min(560px, 48vw); left: -10%; top: 5%; transform: translate3d(0, var(--parallax-left, 0), 0) rotate(6deg); transition: transform .12s linear; animation: flora-breathe 7s ease-in-out infinite alternate; }
.hero-flower--right { width: min(390px, 34vw); right: -8%; bottom: -11%; transform: translate3d(0, var(--parallax-right, 0), 0) rotate(-15deg); transition: transform .12s linear; animation: flora-breathe 8s 1s ease-in-out infinite alternate-reverse; }

.section-shell { width: min(1120px, 100%); margin: 0 auto; }
.countdown { padding: clamp(5rem, 10vw, 8rem) 1.25rem; background: #f4dfd5; }
.countdown-shell { text-align: center; }
.countdown h2, .details-copy h2, .calendar-copy h2, .rsvp-heading h2 {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(3.1rem, 7vw, 6.1rem);
  font-weight: 400;
  letter-spacing: -.035em;
  line-height: .94;
}
.countdown h2 em, .calendar-copy h2 em, .rsvp-heading h2 em { color: var(--peach-ink); font-family: var(--script); font-weight: 500; }
.count-grid {
  max-width: 760px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin: 3rem auto 0;
  border-top: 1px solid rgba(89, 71, 63, .26);
  border-bottom: 1px solid rgba(89, 71, 63, .26);
}
.count-grid div { padding: 1.6rem .5rem; border-right: 1px solid rgba(89, 71, 63, .2); }
.countdown-shell.visible .count-grid div { animation: counter-rise .65s cubic-bezier(.2,.8,.2,1) both; }
.countdown-shell.visible .count-grid div:nth-child(2) { animation-delay: .08s; }
.countdown-shell.visible .count-grid div:nth-child(3) { animation-delay: .16s; }
.countdown-shell.visible .count-grid div:nth-child(4) { animation-delay: .24s; }
.count-grid div:last-child { border-right: 0; }
.count-grid strong { display: block; color: var(--peach-ink); font-family: var(--serif); font-size: clamp(2.8rem, 6vw, 5rem); font-weight: 400; line-height: 1; font-variant-numeric: tabular-nums; }
.count-grid span { font-size: .75rem; letter-spacing: .13em; text-transform: uppercase; }

.details { padding: clamp(5rem, 11vw, 9rem) 1.25rem; background: #efe7de; }
/* sàn 380px: dưới mức này card lễ cưới không đủ rộng để giữ tỉ lệ 12:17
   ở dải 821–900px ngay sau breakpoint desktop. */
.details-grid { display: grid; grid-template-columns: minmax(380px, .86fr) 1.14fr; gap: clamp(3rem, 8vw, 8rem); align-items: center; }
.printed-card {
  position: relative;
  display: grid;
  /* Track cố định: nếu để cột `auto`, spacer ::before có aspect-ratio sẽ suy ngược
     chiều rộng từ chiều cao và kéo cột rộng hơn card → nội dung bị overflow cắt. */
  grid-template-columns: minmax(0, 1fr);
  overflow: hidden;
  background: var(--paper);
  border: 1px solid var(--peach);
  border-radius: 14px;
  box-shadow: 0 20px 50px rgba(89, 71, 63, .11);
}
/* Spacer giữ tỉ lệ 12:17 làm chiều cao TỐI THIỂU. Trước đây aspect-ratio + overflow:hidden
   khiến CTA bị cắt ở 320/390/1440px (design-qa.md #2). */
.printed-card::before { content: ""; grid-area: 1 / 1; aspect-ratio: 12 / 17; }
.event-body {
  grid-area: 1 / 1;
  align-self: center;
  position: relative;
  z-index: 2;
  padding: clamp(1.75rem, 4vw, 2.6rem);
}
.event-body .section-label { margin-top: 0; }
.card-flower { position: absolute; z-index: 1; pointer-events: none; }
.card-flower--top { width: 72%; top: -8%; right: -36%; transform: rotate(-8deg); opacity: .95; }
.event-card.visible .card-flower--top { animation: flora-float 6s ease-in-out infinite alternate; }
.event-lead { max-width: 320px; margin: .35rem 0 .7rem; color: var(--ink-soft); font-family: var(--serif); font-size: 1.12rem; }
.script-title { margin: .6rem 0 .25rem; color: var(--peach-ink); font-family: var(--script); font-size: clamp(3rem, 6.5vw, 4.6rem); line-height: 1; }
.venue { margin: 0; font-family: var(--serif); font-size: 1.2rem; }
.venue-region { color: var(--ink-soft); font-size: .92rem; }
.date-row { display: flex; align-items: center; gap: 1.2rem; margin: 1.4rem 0 .6rem; padding-top: 1rem; border-top: 1px solid rgba(89, 71, 63, .18); }
.date-row > div { display: flex; flex-direction: column; color: var(--peach-ink); }
.date-row strong { font-family: var(--serif); font-size: 2.15rem; line-height: .8; }
.date-row > div > span { margin-top: .4rem; font-size: .75rem; font-weight: 600; letter-spacing: .14em; }
.date-row p { margin: 0; font-size: .78rem; line-height: 1.5; text-transform: uppercase; }
.lunar-date { margin: 0; color: var(--ink-soft); font-size: .75rem; }
.card-actions { display: flex; flex-wrap: wrap; gap: .65rem; margin-top: 1.3rem; }
.button {
  min-height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--peach-ink);
  border-radius: 999px;
  padding: .68rem 1.15rem;
  background: var(--peach-ink);
  color: #fff;
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .1em;
  text-decoration: none;
  text-transform: uppercase;
  cursor: pointer;
  transition: transform .2s ease, background-color .2s ease, color .2s ease, opacity .2s ease;
}
.button:hover { transform: translateY(-2px); }
.button[disabled], .button[aria-disabled="true"] { opacity: .55; pointer-events: none; }
.button--outline { background: transparent; color: var(--peach-ink); }
.button--solid { width: fit-content; margin-top: .5rem; }
.details-copy > p:not(.section-label) { max-width: 570px; color: var(--ink-soft); font-weight: 300; }
.schedule { margin-top: 2.5rem; border-top: 1px solid rgba(89, 71, 63, .22); }
.schedule div { display: grid; grid-template-columns: 90px 1fr; gap: 1rem; padding: 1.1rem 0; border-bottom: 1px solid rgba(89, 71, 63, .22); }
.details-copy.visible .schedule div { animation: schedule-in .6s cubic-bezier(.2,.8,.2,1) both; }
.details-copy.visible .schedule div:nth-child(2) { animation-delay: .1s; }
.details-copy.visible .schedule div:nth-child(3) { animation-delay: .2s; }
.schedule time { color: var(--peach-ink); font-family: var(--serif); font-size: 1.5rem; }
.schedule span { color: var(--ink-soft); }

.calendar-section { position: relative; overflow: hidden; padding: clamp(5rem, 11vw, 9rem) 1.25rem; background: var(--paper); }
.calendar-grid { display: grid; grid-template-columns: 1fr minmax(340px, .76fr); gap: clamp(3rem, 8vw, 8rem); align-items: center; }
.calendar-copy { position: relative; z-index: 2; }
.calendar-copy p:not(.section-label) { max-width: 500px; color: var(--ink-soft); font-weight: 300; }
.calendar-flower { position: absolute; width: min(610px, 48vw); left: -14%; bottom: -18%; pointer-events: none; opacity: .64; }
.month-card { position: relative; z-index: 2; padding: clamp(1.8rem, 4vw, 3rem); background: rgba(255, 250, 243, .92); border: 1px solid var(--peach); border-radius: 14px; box-shadow: 0 18px 45px rgba(89, 71, 63, .08); }
.month-heading { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 1.7rem; padding-bottom: 1rem; border-bottom: 1px solid rgba(89, 71, 63, .15); }
.month-heading span { color: var(--peach-ink); font-family: var(--script); font-size: 2.7rem; }
.month-heading strong { font-family: var(--serif); font-size: 1.6rem; font-weight: 400; }
.weekday, .dates { display: grid; grid-template-columns: repeat(7, 1fr); text-align: center; }
.weekday { margin-bottom: .7rem; color: var(--ink-soft); font-size: .75rem; letter-spacing: .06em; }
.dates { row-gap: .48rem; }
.dates span, .dates i { position: relative; min-height: 40px; display: grid; place-items: center; font-family: var(--serif); font-size: 1rem; font-style: normal; }
.wedding-day { color: #fff; font-weight: 500; }
/* Mark ngày cưới là trái tim, kích thước bám theo ô lịch nên không tràn ở màn nhỏ.
   translate lệch -42% (thay vì -50%) để số 4 nằm đúng phần đầy của trái tim. */
.wedding-day::before {
  content: "";
  position: absolute;
  z-index: -1;
  left: 50%;
  top: 50%;
  /* bám theo ô để không tràn ở màn nhỏ, nhưng có trần để không phình ở ô rộng */
  width: min(92%, 2.4em);
  aspect-ratio: 100 / 88;
  translate: -50% -46%;
  background: var(--peach-ink);
  -webkit-mask: var(--heart-mask) center / contain no-repeat;
  mask: var(--heart-mask) center / contain no-repeat;
}
/* Trình duyệt không hỗ trợ mask thì quay lại hình tròn thay vì ra khối vuông. */
@supports not ((-webkit-mask-image: url("")) or (mask-image: url(""))) {
  .wedding-day::before { width: 82%; aspect-ratio: 1; border-radius: 50%; translate: -50% -50%; }
}
.month-card.visible .wedding-day::before { animation: date-heartbeat 2.1s ease-in-out infinite; }

.rsvp { padding: clamp(5rem, 11vw, 9rem) 1.25rem; background: #f2ddd5; }
.rsvp-grid { display: grid; grid-template-columns: .82fr 1.18fr; gap: clamp(3rem, 8vw, 7rem); align-items: start; }
.rsvp-heading p:not(.section-label) { max-width: 470px; color: var(--ink-soft); }
.rsvp-panel { padding: clamp(1.5rem, 4vw, 3rem); background: var(--paper); border: 1px solid var(--peach); border-radius: 14px; }
#rsvp-form { display: grid; grid-template-columns: 1fr 1fr; gap: 1.2rem; }
#rsvp-form label { display: grid; gap: .45rem; color: var(--ink); font-size: .75rem; font-weight: 600; letter-spacing: .09em; text-transform: uppercase; }
#rsvp-form label:first-child, #rsvp-form label:nth-child(4) { grid-column: 1 / -1; }
#rsvp-form .button--solid, #rsvp-form .form-error { grid-column: 1 / -1; }
#rsvp-form input, #rsvp-form select, #rsvp-form textarea {
  width: 100%;
  border: 0;
  border-bottom: 1px solid rgba(89, 71, 63, .28);
  border-radius: 0;
  padding: .75rem 0;
  background: transparent;
  color: var(--ink);
  outline: 0;
  /* 16px để iOS Safari không tự zoom khi focus */
  font-size: 1rem;
  font-weight: 400;
  letter-spacing: normal;
  text-transform: none;
}
#rsvp-form textarea { resize: vertical; }
#rsvp-form input:focus, #rsvp-form select:focus, #rsvp-form textarea:focus { border-color: var(--peach-ink); }
#rsvp-form [aria-invalid="true"] { border-color: var(--peach-ink); border-bottom-width: 2px; }
.field-error, .form-error { margin: 0; color: var(--peach-ink); font-size: .75rem; font-weight: 500; letter-spacing: normal; text-transform: none; }
.field-error:empty, .form-error:empty { display: none; }
.success { display: none; padding: 2.4rem 1rem; text-align: center; }
.success.show { display: block; animation: success-in .65s cubic-bezier(.2,.8,.2,1) both; }
.success-mark { color: var(--peach-ink); font-family: var(--serif); font-size: 3.5rem; }
.success h3 { margin: 0; color: var(--peach-ink); font-family: var(--script); font-size: 3.2rem; font-weight: 500; }
.success p { max-width: 430px; margin: .5rem auto 0; color: var(--ink-soft); }

.closing {
  position: relative;
  min-height: 68svh;
  display: grid;
  place-items: center;
  overflow: hidden;
  padding: 5rem 1.25rem;
  background: var(--paper);
  text-align: center;
}
.closing > img { position: absolute; width: min(500px, 46vw); right: -8%; bottom: -18%; transform: translate3d(0, var(--closing-shift, 0), 0) rotate(-12deg); pointer-events: none; transition: transform .12s linear; animation: flora-breathe 8s ease-in-out infinite alternate; }
.closing > div { position: relative; z-index: 2; }
.closing-title { margin: .8rem 0 0; color: var(--peach-ink); font-family: var(--script); font-size: clamp(4.4rem, 11vw, 8.5rem); font-weight: 500; line-height: 1; }
.closing-date { margin: .5rem 0 0; color: var(--gold-ink); font-size: .78rem; letter-spacing: .18em; }
footer { display: flex; justify-content: space-between; gap: 1rem; padding: 1.2rem clamp(1.25rem, 4vw, 4rem); border-top: 1px solid rgba(215, 117, 112, .3); background: var(--paper); color: var(--ink-soft); font-size: .75rem; letter-spacing: .1em; text-transform: uppercase; }

[data-reveal] { opacity: 0; transform: translateY(22px); transition: opacity .75s ease, transform .75s ease; }
[data-reveal].visible { opacity: 1; transform: none; }
button:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible, [tabindex]:focus-visible { outline: 3px solid var(--peach-ink); outline-offset: 3px; }

@keyframes card-arrive {
  from { opacity: 0; transform: translateY(1.8rem) rotateX(-5deg) scale(.96); }
  to { opacity: 1; transform: translateY(-.8rem) rotateX(0) scale(1); }
}
@keyframes cover-copy-in {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: none; }
}
@keyframes flower-bloom-left {
  from { opacity: 0; transform: rotate(7deg) scale(.78); }
  to { opacity: 1; transform: rotate(14deg) scale(1); }
}
@keyframes flower-bloom-right {
  from { opacity: 0; transform: rotate(-7deg) scale(.78); }
  to { opacity: 1; transform: rotate(-14deg) scale(1); }
}
@keyframes flora-float {
  from { translate: 0 0; }
  to { translate: 0 -10px; }
}
@keyframes flora-breathe {
  from { scale: 1; }
  to { scale: 1.025; }
}
@keyframes counter-rise {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: none; }
}
@keyframes schedule-in {
  from { opacity: 0; transform: translateX(14px); }
  to { opacity: 1; transform: none; }
}
@keyframes date-heartbeat {
  0%, 70%, 100% { transform: scale(1); }
  78% { transform: scale(1.12); }
  86% { transform: scale(1.03); }
  93% { transform: scale(1.1); }
}
@keyframes success-in {
  from { opacity: 0; transform: translateY(16px) scale(.98); }
  to { opacity: 1; transform: none; }
}

@media (max-width: 820px) {
  .nav { height: 64px; }
  .nav nav a:not(.nav-rsvp) { display: none; }
  .hero { padding-top: 7rem; }
  .hero::before { inset: 4.9rem .8rem .8rem; }
  .hero::after { inset: 5.3rem 1.2rem 1.2rem; }
  .hero-flower--left { width: 78vw; left: -34%; top: 4%; }
  .hero-flower--right { width: 60vw; right: -28%; bottom: -8%; opacity: .78; }
  .details-grid, .calendar-grid, .rsvp-grid { grid-template-columns: 1fr; }
  .printed-card { width: min(470px, 100%); margin: 0 auto; }
  .details-copy { order: -1; }
  .calendar-copy { text-align: center; }
  .calendar-copy p:not(.section-label) { margin-inline: auto; }
  .month-card { width: min(500px, 100%); margin: 0 auto; }
  .calendar-flower { width: 82vw; left: -42%; bottom: -9%; }
}

@media (max-width: 540px) {
  .cover { padding: .8rem; }
  .cover::before { inset: .5rem; }
  .cover-card { width: min(390px, 88vw); }
  .cover-content { padding: 3rem 1.35rem; }
  .cover-flower--top { width: 95%; left: -43%; }
  .cover-flower--bottom { width: 77%; right: -38%; }
  .hero-copy { max-width: 305px; }
  .couple { font-size: clamp(3.25rem, 16vw, 5rem); }
  .hero-flower--left { width: 100vw; left: -52%; top: 6%; }
  .hero-flower--right { width: 79vw; right: -43%; bottom: -5%; }
  .count-grid { grid-template-columns: repeat(2, 1fr); }
  .count-grid div:nth-child(2) { border-right: 0; }
  .count-grid div:nth-child(-n+2) { border-bottom: 1px solid rgba(89, 71, 63, .2); }
  .event-body { padding: 2rem 1.5rem; }
  .event-lead { max-width: 245px; }
  .card-actions { flex-direction: column; }
  .button { width: 100%; }
  .month-card { padding: 1.4rem 1rem; }
  .dates span, .dates i { min-height: 36px; }
  #rsvp-form { grid-template-columns: 1fr; }
  #rsvp-form label { grid-column: 1 / -1; }
  footer { flex-direction: column; text-align: center; }
}

@media (max-width: 360px) {
  /* Nới chỗ cho tên khách dài (có thể xuống 3 dòng) trên màn hẹp nhất:
     bìa giữ tỉ lệ 12:17 cố định nên phải bớt khoảng trắng, không nới cao được. */
  .cover-content { padding: 2rem 1.1rem; }
  .cover-content .kicker { margin: .8rem 0 .35rem; }
  .cover-date { margin: .7rem 0 1rem; }
  .guest-cover { font-size: .92rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  [data-reveal] { opacity: 1; transform: none; }
}