/* =========================================================
   WEDDING SITE — pastel / white
   ========================================================= */

:root{
  --blush:#F7E7E6;
  --blush-deep:#EFD3D1;
  --sage:#DDE6DC;
  --sage-deep:#C3D3C2;
  --cream:#FDFBF7;
  --ivory:#FFFFFF;
  --sand:#F3EDE4;
  --gold:#C9A227;
  --gold-soft:#D9BE6A;
  --ink:#3A3330;
  --ink-soft:#6E6460;
  --muted:#9A908B;
  --line:#EAE2DA;
  --shadow:0 18px 44px -24px rgba(58,51,48,.35);
  --shadow-sm:0 8px 20px -14px rgba(58,51,48,.4);
  --r:18px;
  --serif:'Cormorant Garamond',Georgia,serif;
  --script:'Dancing Script',cursive;
  --sans:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',sans-serif;
  --wrap:1120px;
}

*,*::before,*::after{box-sizing:border-box}

/* QUAN TRỌNG: thuộc tính hidden phải luôn thắng mọi rule display bên dưới.
   Thiếu dòng này thì lightbox / màn hình mã thiệp sẽ hiện đè lên cả trang. */
[hidden]{display:none!important}

html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;font-family:var(--sans);font-weight:300;
  color:var(--ink);background:var(--cream);
  line-height:1.75;overflow-x:hidden;
}
body.locked{overflow:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{font-family:var(--serif);font-weight:400;line-height:1.2;margin:0}
.wrap{width:min(100% - 40px,var(--wrap));margin-inline:auto}
.wrap--narrow{width:min(100% - 40px,760px)}
.center{text-align:center}
.muted{color:var(--muted)}
.script{font-family:var(--script);font-size:clamp(1.6rem,4vw,2.4rem);color:var(--gold);line-height:1.4}

/* ---------- BUTTONS ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 30px;border:1px solid var(--ink);border-radius:999px;
  background:transparent;cursor:pointer;font-size:.82rem;font-weight:400;
  letter-spacing:.14em;text-transform:uppercase;
  transition:.35s cubic-bezier(.2,.8,.3,1);
}
.btn:hover{background:var(--ink);color:#fff;transform:translateY(-2px)}
.btn--gold{background:var(--gold);border-color:var(--gold);color:#fff}
.btn--gold:hover{background:#b08e1c;border-color:#b08e1c}
.btn--ghost{border-color:var(--line);color:var(--ink-soft);background:#fff}
.btn--ghost:hover{background:var(--ink);color:#fff;border-color:var(--ink)}
.btn--block{width:100%}
.btn--sm{padding:10px 20px;font-size:.72rem}
.btn:disabled{opacity:.5;cursor:not-allowed;transform:none}

/* ---------- OPENING ---------- */
.opening{
  position:fixed;inset:0;z-index:200;display:grid;place-items:center;
  /* nền do hai cánh rèm bên dưới vẽ, không đặt ở đây */
  transition:visibility .9s;
}
.opening.is-open{visibility:hidden;pointer-events:none;transition-delay:1.25s}
/* Hai cánh rèm ghép lại thành một nền liền mạch, khi mở thì tách sang hai bên.
   MẸO QUAN TRỌNG: mỗi cánh vẽ gradient rộng đúng 100vw rồi neo vào mép trái /
   mép phải màn hình, nên hai nửa luôn khớp nhau tuyệt đối dù bề rộng bao nhiêu.
   Cho mỗi cánh rộng 51% để chúng đè lên nhau 2%, bịt kín khe giữa — nếu hở
   dù chỉ 1px là thấy ngay lát cắt dọc của trang phía sau lọt qua. */
.opening__curtain{
  position:absolute;top:0;bottom:0;width:51%;
  background-image:linear-gradient(160deg,var(--blush) 0%,var(--cream) 45%,var(--sage) 100%);
  background-size:100vw 100%;
  background-repeat:no-repeat;
  transition:transform 1.25s cubic-bezier(.76,0,.24,1);
}
.opening__curtain--l{left:0;background-position:left top}
.opening__curtain--r{right:0;background-position:right top}
.opening.is-open .opening__curtain--l{transform:translateX(-101%)}
.opening.is-open .opening__curtain--r{transform:translateX(101%)}
.opening__inner{
  position:relative;text-align:center;padding:32px;
  animation:fadeUp 1.2s both;
  transition:opacity .4s ease,transform .5s ease;
}
/* BẮT BUỘC có animation:none ở đây.
   fadeUp dùng fill-mode "both" nên nó ghim opacity:1 vĩnh viễn, mà animation
   luôn thắng transition trong CSS — thiếu dòng này thì khối chữ không chịu mờ
   đi, dẫn tới chữ màn hình mở thiệp chồng lên chữ trang chính lúc vén rèm. */
.opening.is-open .opening__inner{
  animation:none;
  opacity:0;
  transform:scale(.94);
}
.opening__to{font-size:.72rem;letter-spacing:.34em;text-transform:uppercase;color:var(--muted);margin:0 0 6px}
.opening__names{font-size:clamp(1.9rem,7vw,3.2rem);margin-bottom:10px}
.opening__date{color:var(--ink-soft);margin:0 0 30px;font-size:.95rem}

.monogram{
  display:block;width:78px;height:78px;margin:0 auto 20px;
}
.monogram--lg{width:104px;height:104px;margin-bottom:24px}
.monogram .mono__arc{
  stroke-dasharray:150;stroke-dashoffset:150;
}
.monogram .mono__leaves,.monogram .mono__txt{opacity:0}
.monogram.is-drawn .mono__arc{animation:monoDraw 1.5s cubic-bezier(.4,0,.2,1) forwards}
.monogram.is-drawn .mono__leaves{animation:monoFade .9s ease .95s forwards}
.monogram.is-drawn .mono__txt{animation:monoFade .9s ease 1.25s forwards}
@keyframes monoDraw{to{stroke-dashoffset:0}}
@keyframes monoFade{to{opacity:1}}
@media (prefers-reduced-motion:reduce){
  .monogram .mono__arc{stroke-dashoffset:0}
  .monogram .mono__leaves,.monogram .mono__txt{opacity:1}
  .monogram.is-drawn *{animation:none!important}
}

/* ---------- GATE ---------- */
.gate{position:fixed;inset:0;z-index:210;display:grid;place-items:center;background:var(--cream)}
.gate__box{text-align:center;max-width:360px;padding:30px}
.gate__box h2{font-size:1.8rem;margin-bottom:8px}
.gate__box p{color:var(--ink-soft);font-size:.9rem}
.gate__box input{
  width:100%;text-align:center;font-size:1.6rem;letter-spacing:.5em;
  padding:14px;border:1px solid var(--line);border-radius:12px;margin:18px 0;background:#fff;
}
.gate__err{color:#c0392b;font-size:.85rem;min-height:22px}

/* ---------- MUSIC ---------- */
.music-toggle{
  position:fixed;right:18px;bottom:18px;z-index:120;
  width:50px;height:50px;border-radius:50%;border:1px solid var(--line);
  background:#fff;box-shadow:var(--shadow-sm);cursor:pointer;
  display:grid;place-items:center;transition:.3s;
}
.music-toggle:hover{transform:scale(1.08)}
.music-toggle__icon{font-size:20px;color:var(--gold)}
.music-toggle__bars{display:none;gap:3px;align-items:flex-end;height:18px}
.music-toggle__bars i{width:3px;background:var(--gold);border-radius:2px;animation:eq .9s ease-in-out infinite}
.music-toggle__bars i:nth-child(2){animation-delay:.25s}
.music-toggle__bars i:nth-child(3){animation-delay:.5s}
.music-toggle.is-playing .music-toggle__icon{display:none}
.music-toggle.is-playing .music-toggle__bars{display:flex}
@keyframes eq{0%,100%{height:5px}50%{height:18px}}

/* ---------- NAV ---------- */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  display:flex;align-items:center;justify-content:space-between;
  padding:16px 24px;transition:.4s;
}
.nav.is-stuck{background:rgba(253,251,247,.92);backdrop-filter:blur(12px);box-shadow:0 1px 0 var(--line);padding:10px 24px}
.nav__brand{font-family:var(--script);font-size:1.3rem;color:var(--gold);opacity:0;transition:.4s}
.nav.is-stuck .nav__brand{opacity:1}
.nav__list{display:flex;gap:26px;list-style:none;margin:0;padding:0}
.nav__list a{font-size:.74rem;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-soft);position:relative;padding:4px 0}
.nav__list a::after{content:'';position:absolute;left:0;bottom:0;width:0;height:1px;background:var(--gold);transition:.3s}
.nav__list a:hover::after,.nav__list a.is-active::after{width:100%}
.nav__burger{display:none;flex-direction:column;gap:5px;background:none;border:0;padding:8px;cursor:pointer}
.nav__burger span{width:22px;height:1.5px;background:var(--ink);transition:.3s}
.nav__burger.is-open span:nth-child(1){transform:translateY(6.5px) rotate(45deg)}
.nav__burger.is-open span:nth-child(2){opacity:0}
.nav__burger.is-open span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg)}

/* ---------- HERO ---------- */
.hero{position:relative;min-height:100svh;display:grid;place-items:center;text-align:center;overflow:hidden;padding:110px 20px 90px}
.hero__bg{
  position:absolute;inset:0;
  background:
    radial-gradient(900px 620px at 18% 8%,var(--blush) 0%,transparent 62%),
    radial-gradient(760px 560px at 88% 82%,var(--sage) 0%,transparent 60%),
    linear-gradient(180deg,#fff 0%,var(--cream) 100%);
}
.hero__bg::after{
  content:'';position:absolute;inset:0;
  background-image:radial-gradient(var(--line) 1px,transparent 1px);
  background-size:26px 26px;opacity:.5;
}
/* Ảnh nền zoom chậm kiểu Ken Burns */
.hero__photo{
  position:absolute;inset:0;background-size:cover;background-position:center;
  opacity:0;transition:opacity 1.6s ease;
  will-change:transform;
}
.hero__photo.is-ready{opacity:1;animation:kenBurns 26s ease-in-out infinite alternate}
@keyframes kenBurns{
  from{transform:scale(1.02) translate3d(0,0,0)}
  to{transform:scale(1.13) translate3d(-1.4%,-1.8%,0)}
}
/* lớp sáng phủ lên ảnh để chữ luôn đọc được */
.hero__scrim{
  position:absolute;inset:0;
  background:
    radial-gradient(64% 52% at 50% 46%,rgba(255,253,249,.82) 0%,rgba(255,253,249,.45) 55%,transparent 100%),
    linear-gradient(180deg,rgba(255,253,249,.55) 0%,transparent 26%,transparent 72%,var(--cream) 100%);
}
.hero__content{position:relative;z-index:2}
/* tên hiện dần từng chữ cái */
.hero__names .ch{
  display:inline-block;opacity:0;transform:translateY(24px) rotate(2deg);
  animation:chIn .85s cubic-bezier(.2,.8,.3,1) forwards;
}
.hero__names .ch--space{width:.28em}
@media (prefers-reduced-motion:reduce){
  .hero__photo.is-ready{animation:none}
  .hero__names .ch{animation:none;opacity:1;transform:none}
}
@keyframes chIn{to{opacity:1;transform:none}}
.hero__tagline{font-size:.72rem;letter-spacing:.42em;text-transform:uppercase;color:var(--muted);margin:0 0 20px;
  animation:fadeUp .9s .15s both}
.hero__rule,.hero__date,.hero__lunar,.countdown,.hero__cta{animation:fadeUp 1s both}
.hero__rule{animation-delay:1.05s}
.hero__date{animation-delay:1.2s}
.hero__lunar{animation-delay:1.3s}
.countdown{animation-delay:1.45s}
.hero__cta{animation-delay:1.6s}
.hero__names{font-size:clamp(2.4rem,9vw,5.4rem);line-height:1.1;display:flex;flex-wrap:wrap;gap:0 18px;justify-content:center;align-items:center}
.hero__amp{font-family:var(--script);color:var(--gold);font-size:.7em}
.hero__rule{display:flex;align-items:center;justify-content:center;gap:14px;margin:22px 0 14px}
.hero__rule i{width:clamp(40px,12vw,90px);height:1px;background:var(--line)}
.hero__rule span{color:var(--gold-soft);font-size:.9rem}
.hero__date{font-size:clamp(1rem,2.4vw,1.2rem);letter-spacing:.06em;color:var(--ink-soft);margin:0}
.hero__lunar{font-size:.85rem;color:var(--muted);font-style:italic;margin:4px 0 0}
.hero__cta{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-top:34px}
.hero__scroll{position:absolute;bottom:26px;left:50%;transform:translateX(-50%);z-index:2}
.hero__scroll span{display:block;width:20px;height:32px;border:1px solid var(--muted);border-radius:12px;position:relative}
.hero__scroll span::after{content:'';position:absolute;left:50%;top:7px;width:3px;height:6px;background:var(--gold);border-radius:2px;transform:translateX(-50%);animation:scrollDot 1.8s infinite}
@keyframes scrollDot{0%{opacity:0;transform:translate(-50%,0)}40%{opacity:1}100%{opacity:0;transform:translate(-50%,12px)}}

/* ---------- COUNTDOWN ---------- */
.countdown{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-top:34px}
.countdown__cell{
  min-width:86px;padding:16px 10px;background:rgba(255,255,255,.75);
  border:1px solid var(--line);border-radius:14px;backdrop-filter:blur(6px);
}
.countdown__cell b{display:block;font-family:var(--serif);font-size:2rem;font-weight:500;line-height:1;color:var(--ink)}
.countdown__cell span{font-size:.64rem;letter-spacing:.2em;text-transform:uppercase;color:var(--muted)}

/* ---------- SECTION ---------- */
.section{padding:clamp(64px,10vw,110px) 0}
.section--tint{background:linear-gradient(180deg,#fff 0%,var(--sand) 100%)}
.sec-head{text-align:center;margin-bottom:clamp(38px,6vw,64px)}
.sec-head__eyebrow{font-size:.7rem;letter-spacing:.36em;text-transform:uppercase;color:var(--gold);margin:0 0 10px}
.sec-head__title{font-size:clamp(1.9rem,5vw,2.9rem)}
.sec-head__title::after{content:'';display:block;width:54px;height:1px;background:var(--gold-soft);margin:16px auto 0}
.sec-head__sub{color:var(--ink-soft);font-size:.95rem;max-width:560px;margin:14px auto 0}

.card{background:#fff;border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow)}

/* ---------- INVITE ---------- */
.invite{padding:clamp(60px,9vw,100px) 0;background:#fff}
.lead{color:var(--ink-soft);max-width:560px;margin:14px auto 0}
.families{display:flex;gap:30px;justify-content:center;align-items:center;margin-top:48px;flex-wrap:wrap}
.families__side{flex:1;min-width:220px;text-align:center}
.families__side h4{font-size:.74rem;letter-spacing:.28em;text-transform:uppercase;color:var(--gold);margin-bottom:12px;font-family:var(--sans)}
.families__side p{margin:2px 0;font-family:var(--serif);font-size:1.22rem}
.families__side small{color:var(--muted);font-size:.8rem}
.families__child{
  display:block;width:fit-content;margin:10px auto 8px!important;padding-top:10px;
  border-top:1px solid var(--line);color:var(--gold);font-size:1.05rem!important;
}
.families__side small{display:block;margin-top:2px}
.families__child:empty{display:none}
.families__div{width:1px;align-self:stretch;min-height:90px;background:var(--line)}

/* ---------- THIỆP MỜI 3D ----------
   LƯU Ý QUAN TRỌNG: .envelope dùng transform-style:preserve-3d, mà trong
   ngữ cảnh 3D thì trình duyệt BỎ QUA z-index — thứ tự xếp lớp do toạ độ Z
   quyết định. Nên mọi lớp ở đây đều xếp bằng translateZ, không dùng z-index.
     đáy 0px · thiệp lúc đóng 2px · thân trước 8px · nắp 9px · sáp 13px
     thiệp lúc mở 70px (nhô hẳn ra trước mọi thứ)                          */
.svg-defs{position:absolute;pointer-events:none}

.env-stage{
  position:relative;height:720px;margin:0 auto;
  perspective:1600px;perspective-origin:50% 36%;
}
.envelope{
  position:absolute;left:50%;bottom:78px;
  width:min(392px,84vw);aspect-ratio:7/5;
  transform:translateX(-50%);transform-style:preserve-3d;
  cursor:pointer;-webkit-tap-highlight-color:transparent;
  transition:transform .9s cubic-bezier(.22,.9,.24,1);
}
.envelope:focus-visible{outline:2px solid var(--gold);outline-offset:16px;border-radius:10px}
.env-stage.is-open .envelope{transform:translateX(-50%) translateY(26px)}

/* đáy phong bì — lòng trong tối hơn một chút cho có chiều sâu */
.env__back{
  position:absolute;inset:0;border-radius:6px;transform:translateZ(0);
  background:
    linear-gradient(180deg,rgba(150,120,95,.22),transparent 34%),
    linear-gradient(158deg,#F7EDE7 0%,#EEDFD1 100%);
  box-shadow:0 30px 56px -32px rgba(58,51,48,.55);
}

/* thân trước */
.env__front{
  position:absolute;inset:0;border-radius:6px;transform:translateZ(8px);
  clip-path:polygon(0 0,50% 47%,100% 0,100% 100%,0 100%);
  background:linear-gradient(168deg,#FCF6F1 0%,#F2E7DB 52%,#EADBCB 100%);
}
.env__front::after{
  content:'';position:absolute;inset:0;clip-path:inherit;
  background:
    linear-gradient(180deg,rgba(255,255,255,.6),transparent 34%),
    linear-gradient(200deg,transparent 62%,rgba(160,128,96,.12));
}

/* nắp — hai mặt: ngoài giấy trơn, trong có hoạ tiết lót */
.env__flap{
  position:absolute;left:0;right:0;top:0;height:57%;
  transform-origin:top center;transform-style:preserve-3d;
  transform:rotateX(0deg) translateZ(9px);
  transition:transform 1.15s cubic-bezier(.36,.82,.28,1);
  will-change:transform;
}
.env-stage.is-open .env__flap{transform:rotateX(-176deg) translateZ(9px)}
.env__face{position:absolute;inset:0;backface-visibility:hidden}
.env__face--out{
  clip-path:polygon(0 0,100% 0,50% 100%);
  background:linear-gradient(172deg,#FCF5EE 0%,#EDDFD0 100%);
  box-shadow:0 2px 6px rgba(150,120,95,.16);
}
/* mặt trong bị lật 180 độ nên clip-path phải vẽ ngược lại */
.env__face--in{
  transform:rotateX(180deg);
  clip-path:polygon(0 100%,100% 100%,50% 0);
  background-color:#F6E8E6;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='44' height='44' viewBox='0 0 44 44'%3E%3Cg fill='none' stroke='%23C9A227' stroke-width='.9' opacity='.42'%3E%3Cpath d='M22 5c5 6 5 11 0 17-5-6-5-11 0-17z'/%3E%3Cpath d='M5 22c6-5 11-5 17 0-6 5-11 5-17 0z'/%3E%3Cpath d='M39 22c-6-5-11-5-17 0 6 5 11 5 17 0z'/%3E%3Cpath d='M22 39c-5-6-5-11 0-17 5 6 5 11 0 17z'/%3E%3Ccircle cx='22' cy='22' r='1.6' fill='%23C9A227' stroke='none'/%3E%3C/g%3E%3C/svg%3E");
  background-size:44px 44px;
}

/* dấu sáp */
.env__seal{
  position:absolute;left:50%;top:47%;
  width:64px;height:64px;margin:-32px 0 0 -32px;border-radius:50%;
  transform:translateZ(13px);
  background:
    radial-gradient(circle at 33% 28%,#E0BA62 0%,#C39A33 38%,#A17818 66%,#7E5C11 100%);
  box-shadow:
    0 8px 16px -7px rgba(58,51,48,.7),
    inset 0 1px 3px rgba(255,248,226,.55),
    inset 0 -3px 6px rgba(90,64,10,.5);
  transition:transform .75s cubic-bezier(.4,.1,.3,1),opacity .6s ease .1s;
}
.env__seal::before{
  content:'';position:absolute;inset:-3px;border-radius:50%;
  background:radial-gradient(circle at 50% 50%,transparent 62%,rgba(163,125,32,.34) 76%,transparent 82%);
}
.env__seal svg{width:100%;height:100%;display:block}
.env-stage.is-open .env__seal{
  transform:translateZ(13px) translateY(190px) rotate(58deg) scale(.42);
  opacity:0;
}

/* ---- TẤM THIỆP ---- */
.env__card{
  position:absolute;left:50%;bottom:6%;
  width:min(334px,78vw);height:462px;
  transform-origin:bottom center;
  transform:translate(-50%,0) translateZ(2px) rotateX(4deg) scale(1.03,.475);
  border-radius:3px;overflow:hidden;
  background:
    radial-gradient(120% 90% at 50% 0%,#FFFFFF 0%,#FFFCF6 52%,#FAF3E7 100%);
  box-shadow:0 12px 30px -20px rgba(58,51,48,.6);
  transition:transform 1.15s cubic-bezier(.24,.88,.26,1) .38s,
             box-shadow 1.15s ease .38s;
  will-change:transform;
}
.env-stage.is-open .env__card{
  transform:translate(-50%,-40%) translateZ(70px) rotateX(0deg) scale(1);
  box-shadow:0 46px 78px -36px rgba(58,51,48,.62);
}
/* vân giấy + ánh sáng chéo rất nhẹ */
.env__card::after{
  content:'';position:absolute;inset:0;pointer-events:none;
  background:
    linear-gradient(118deg,rgba(255,255,255,.5) 0%,transparent 38%,rgba(196,170,132,.09) 100%),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='120' height='120' filter='url(%23n)' opacity='.045'/%3E%3C/svg%3E");
}

.ecard{position:absolute;inset:0;padding:clamp(26px,6.5vw,34px) clamp(20px,5.5vw,28px)}
.ecard::before{
  content:'';position:absolute;inset:14px;
  border:1px solid rgba(201,162,39,.3);border-radius:1px;
}
.ecard::after{
  content:'';position:absolute;inset:19px;
  border:1px solid rgba(201,162,39,.16);border-radius:1px;
}

/* bốn hoa văn góc — vẽ một lần rồi lật qua trục */
.ecard__orn{
  position:absolute;width:clamp(58px,17vw,70px);height:auto;
  opacity:0;transition:opacity .9s ease .9s;
}
.env-stage.is-open .ecard__orn{opacity:.95}
.ecard__orn--tl{top:9px;left:9px}
.ecard__orn--tr{top:9px;right:9px;transform:scaleX(-1)}
.ecard__orn--bl{bottom:9px;left:9px;transform:scaleY(-1)}
.ecard__orn--br{bottom:9px;right:9px;transform:scale(-1,-1)}

.ecard__body{
  position:absolute;inset:0;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  text-align:center;padding:clamp(30px,8vw,40px) clamp(24px,7vw,32px);
}
/* chữ hiện lần lượt sau khi thiệp đã nhô ra */
.ecard__body > *{
  opacity:0;transform:translateY(12px);
  transition:opacity .7s ease,transform .7s cubic-bezier(.2,.8,.3,1);
}
.env-stage.is-open .ecard__body > *{opacity:1;transform:none}
.env-stage.is-open .ecard__body > *:nth-child(1){transition-delay:1.00s}
.env-stage.is-open .ecard__body > *:nth-child(2){transition-delay:1.09s}
.env-stage.is-open .ecard__body > *:nth-child(3){transition-delay:1.18s}
.env-stage.is-open .ecard__body > *:nth-child(4){transition-delay:1.27s}
.env-stage.is-open .ecard__body > *:nth-child(5){transition-delay:1.36s}
.env-stage.is-open .ecard__body > *:nth-child(6){transition-delay:1.45s}
.env-stage.is-open .ecard__body > *:nth-child(7){transition-delay:1.54s}
.env-stage.is-open .ecard__body > *:nth-child(8){transition-delay:1.63s}
.env-stage.is-open .ecard__body > *:nth-child(9){transition-delay:1.72s}

.ecard__sprig{width:clamp(74px,22vw,92px);height:auto;margin-bottom:12px;opacity:.95}
.ecard__eyebrow{
  margin:0;font-size:.6rem;letter-spacing:.34em;text-transform:uppercase;
  color:#A99070;
}
.ecard__guest{
  margin:11px 0 0;padding:0 4px;
  font-family:var(--script);font-size:clamp(1.9rem,7.6vw,2.5rem);font-weight:600;
  line-height:1.16;text-wrap:balance;
  background:linear-gradient(112deg,#C9A227 0%,#8E6E15 22%,#E6D096 48%,#9A7718 74%,#C9A227 100%);
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:#A8801B;
}
@supports not (-webkit-background-clip:text){ .ecard__guest{color:#A8801B} }
.ecard__divider{width:clamp(126px,40vw,166px);height:auto;margin:12px 0 13px}
.ecard__line{margin:0;font-size:.83rem;color:var(--ink-soft);line-height:1.68}
.ecard__names{
  margin:15px 0 11px;font-size:clamp(1.14rem,4.5vw,1.36rem);line-height:1.34;color:var(--ink);
}
.ecard__amp{
  display:block;font-family:var(--script);font-size:1.2em;
  color:var(--gold);line-height:1;margin:2px 0;
}
.ecard__when{
  margin:0;font-size:.79rem;letter-spacing:.09em;color:#A8801B;
  font-variant-numeric:tabular-nums;
}
.ecard__where{margin:6px 0 0;font-family:var(--serif);font-size:.98rem;color:var(--ink);line-height:1.45}
.ecard__note{margin:17px 0 0;font-size:.71rem;font-style:italic;color:var(--muted);line-height:1.62}

.env-hint{
  position:absolute;left:0;right:0;bottom:4px;margin:0;text-align:center;
  font-size:.68rem;letter-spacing:.26em;text-transform:uppercase;color:var(--muted);
  transition:opacity .5s;animation:hintPulse 2.8s ease-in-out infinite;
}
.env-stage.is-open .env-hint{opacity:0;animation:none}
@keyframes hintPulse{0%,100%{opacity:.5}50%{opacity:1}}

.env-actions{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-top:10px}

@media (max-width:560px){
  .env-stage{height:606px}
  .envelope{bottom:64px}
  .env__card{height:400px}
  .env-stage.is-open .env__card{transform:translate(-50%,-37%) translateZ(50px) rotateX(0) scale(1)}
  .env__card{transform:translate(-50%,0) translateZ(2px) rotateX(4deg) scale(1.03,.475)}
  .ecard__note{display:none}
  .env__seal{width:56px;height:56px;margin:-28px 0 0 -28px}
}

@media (prefers-reduced-motion:reduce){
  .env__flap,.env__card,.env__seal,.envelope,.ecard__body > *,.ecard__orn{
    transition-duration:.01ms!important;transition-delay:0s!important
  }
  .env-hint{animation:none}
}

/* ---------- COUPLE ---------- */
.couple{display:grid;grid-template-columns:1fr auto 1fr;gap:34px;align-items:start}
.person{text-align:center}
.person__photo{
  width:min(260px,72vw);aspect-ratio:3/4;margin:0 auto 20px;border-radius:200px 200px 16px 16px;
  overflow:hidden;background:linear-gradient(160deg,var(--blush),var(--sage));
  box-shadow:var(--shadow);position:relative;
}
.person__photo img{width:100%;height:100%;object-fit:cover}
.person__photo::after{content:'';position:absolute;inset:8px;border:1px solid rgba(255,255,255,.55);border-radius:190px 190px 10px 10px;pointer-events:none}
.person__role{font-size:.68rem;letter-spacing:.3em;text-transform:uppercase;color:var(--gold);margin:0 0 4px}
.person__name{font-size:1.65rem;margin-bottom:8px}
.person__bio{color:var(--ink-soft);font-size:.92rem;max-width:300px;margin:0 auto}
.couple__heart{align-self:center;font-family:var(--script);font-size:3rem;color:var(--gold-soft);padding-top:110px}

/* ---------- CHUYỆN CHÚNG MÌNH — cuộn phim ----------
   Cột ảnh dính lại giữa màn hình, đổi ảnh theo mốc khi khách cuộn.
   Màn hình hẹp thì bỏ dính, mỗi mốc kèm ảnh riêng bên dưới.        */
.storyline{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:clamp(28px,5vw,64px);align-items:start;
}
.storyline__media{
  position:sticky;top:calc(50vh - 33%);
  aspect-ratio:4/5;border-radius:var(--r);overflow:hidden;
  background:linear-gradient(160deg,var(--blush),var(--sage));
  box-shadow:var(--shadow);
}
.storyline__media::after{
  content:'';position:absolute;inset:0;pointer-events:none;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.5);border-radius:inherit;
}
.storyline__frame{
  position:absolute;inset:0;opacity:0;
  transition:opacity .85s ease,transform 1.3s cubic-bezier(.2,.8,.3,1);
  transform:scale(1.08);
}
.storyline__frame.is-on{opacity:1;transform:scale(1)}
.storyline__frame img{width:100%;height:100%;object-fit:cover}

.storyline__steps{margin:0;padding:0;list-style:none}
.story-step{
  min-height:74vh;display:flex;flex-direction:column;justify-content:center;
  padding:26px 0;
}
.story-step__photo{display:none}
.story-step__date{
  font-size:.7rem;letter-spacing:.3em;text-transform:uppercase;color:var(--gold);
  margin:0 0 10px;display:flex;align-items:center;gap:12px;
}
.story-step__date::after{content:'';flex:1;height:1px;background:var(--line);max-width:80px}
.story-step__title{font-size:clamp(1.5rem,3.6vw,2.05rem);margin-bottom:12px;text-wrap:balance}
.story-step__text{margin:0;color:var(--ink-soft);font-size:1rem;line-height:1.8;max-width:42ch}
.story-step__num{
  display:block;font-family:var(--serif);font-size:.85rem;color:var(--muted);
  margin-top:18px;font-variant-numeric:tabular-nums;
}
/* mốc chưa tới thì mờ đi, mốc đang xem thì rõ */
.story-step{opacity:.34;transition:opacity .6s ease}
.story-step.is-on{opacity:1}

@media (max-width:860px){
  .storyline{grid-template-columns:1fr;gap:0}
  .storyline__media{display:none}
  .story-step{min-height:0;opacity:1;padding:0 0 42px}
  .story-step__photo{
    display:block;margin-bottom:18px;border-radius:var(--r);overflow:hidden;
    aspect-ratio:4/3;background:linear-gradient(160deg,var(--blush),var(--sage));
    box-shadow:var(--shadow-sm);
  }
  .story-step__photo img{width:100%;height:100%;object-fit:cover}
  .story-step__text{max-width:none}
}
@media (prefers-reduced-motion:reduce){
  .storyline__frame{transition:none}
  .story-step{opacity:1}
}

/* ---------- EVENTS ---------- */
.events{display:grid;grid-template-columns:repeat(auto-fit,minmax(272px,1fr));gap:22px;margin-bottom:46px}
.event{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:34px 26px;text-align:center;box-shadow:var(--shadow-sm);transition:.4s}
.event:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.event__icon{font-size:34px;margin-bottom:12px}
.event__name{font-size:1.45rem;margin-bottom:8px}
.event__time{font-size:.86rem;color:var(--gold);letter-spacing:.06em;margin:0 0 12px}
.event__venue{font-family:var(--serif);font-size:1.1rem;margin:0}
.event__addr{color:var(--muted);font-size:.84rem;margin:4px 0 14px}
.event__actions{display:flex;gap:8px;justify-content:center;flex-wrap:wrap}
.event__actions .btn{flex:0 1 auto}
.event__note{
  margin:0 0 16px;padding:10px 14px;border-radius:10px;
  background:var(--sand);border-left:2px solid var(--gold-soft);
  font-size:.79rem;font-style:italic;color:var(--ink-soft);line-height:1.55;text-align:left;
}

.mapbox{background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow-sm)}
.mapbox__tabs{display:flex;flex-wrap:wrap;border-bottom:1px solid var(--line)}
.mapbox__tab{flex:1;min-width:140px;padding:15px 12px;background:none;border:0;cursor:pointer;font-size:.76rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);transition:.3s;border-bottom:2px solid transparent}
.mapbox__tab.is-active{color:var(--ink);border-bottom-color:var(--gold)}
.mapbox__frame{aspect-ratio:16/8;min-height:300px}
.mapbox__frame iframe{width:100%;height:100%;border:0;display:block}

/* ---------- GÓC CÔNG GIÁO ---------- */
.sub-title{
  text-align:center;font-size:1.4rem;margin:clamp(44px,6vw,64px) 0 26px;
}
.verse{
  max-width:640px;margin:0 auto clamp(40px,6vw,58px);padding:0 clamp(18px,5vw,40px);
  text-align:center;position:relative;
}
.verse::before,.verse::after{
  position:absolute;font-family:var(--serif);font-size:3.4rem;color:var(--gold-soft);
  line-height:1;opacity:.55;
}
.verse::before{content:'“';left:0;top:-10px}
.verse::after{content:'”';right:0;bottom:-30px}
.verse__text{
  font-family:var(--serif);font-style:italic;font-size:clamp(1.18rem,3.4vw,1.6rem);
  line-height:1.6;color:var(--ink);margin:0;text-wrap:balance;
}
.verse__ref{
  display:block;margin-top:14px;font-size:.74rem;letter-spacing:.2em;
  text-transform:uppercase;color:var(--gold);font-style:normal;
}

.rite{
  max-width:720px;margin:0 auto;position:relative;padding-left:clamp(76px,16vw,104px);
}
.rite::before{
  content:'';position:absolute;left:clamp(66px,14.4vw,92px);top:12px;bottom:12px;
  width:1px;background:var(--line);
}
.rite__item{position:relative;padding:0 0 26px}
.rite__item:last-child{padding-bottom:0}
.rite__time{
  position:absolute;left:calc(-1 * clamp(76px,16vw,104px));top:1px;
  width:clamp(58px,12vw,78px);text-align:right;
  font-size:.72rem;letter-spacing:.06em;color:var(--muted);font-variant-numeric:tabular-nums;
}
.rite__dot{
  position:absolute;left:calc(-1 * clamp(14px,2.6vw,17px));top:7px;
  width:9px;height:9px;border-radius:50%;background:#fff;border:1.5px solid var(--gold-soft);
}
.rite__title{font-size:1.14rem;margin-bottom:3px}
.rite__text{margin:0;font-size:.9rem;color:var(--ink-soft);line-height:1.65}

.tips{display:grid;grid-template-columns:repeat(auto-fit,minmax(248px,1fr));gap:16px}
.tip{
  display:flex;gap:14px;padding:20px 22px;background:#fff;
  border:1px solid var(--line);border-radius:14px;
}
.tip__icon{font-size:22px;line-height:1.2;flex-shrink:0}
.tip__title{font-family:var(--sans);font-size:.76rem;letter-spacing:.16em;
  text-transform:uppercase;color:var(--gold);margin:0 0 5px}
.tip__text{margin:0;font-size:.88rem;color:var(--ink-soft);line-height:1.6}

/* ---------- DÒNG THỜI GIAN NGÀY CƯỚI ---------- */
.runsheet{list-style:none;margin:0;padding:0;counter-reset:rs}
.run{
  display:grid;grid-template-columns:clamp(62px,14vw,84px) 1fr;gap:clamp(14px,3vw,26px);
  padding:18px 18px 18px 0;border-top:1px solid var(--line);
  transition:background .4s,border-color .4s;
}
.run:last-child{border-bottom:1px solid var(--line)}
.run__time{
  font-family:var(--serif);font-size:clamp(1.1rem,3vw,1.34rem);color:var(--ink);
  font-variant-numeric:tabular-nums;line-height:1.3;text-align:right;
}
.run__day{display:block;font-family:var(--sans);font-size:.62rem;letter-spacing:.14em;
  text-transform:uppercase;color:var(--muted);margin-top:3px}
.run__title{font-size:1.16rem;margin-bottom:3px}
.run__place{font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;color:var(--gold);margin:0 0 5px}
.run__text{margin:0;font-size:.88rem;color:var(--ink-soft);line-height:1.6}
.run__badge{
  display:inline-block;margin-top:9px;padding:4px 12px;border-radius:999px;
  font-size:.66rem;letter-spacing:.16em;text-transform:uppercase;
}
.run--now{background:linear-gradient(90deg,rgba(201,162,39,.09),transparent 72%);
  border-top-color:var(--gold-soft)}
.run--now .run__badge{background:var(--gold);color:#fff}
.run--now .run__title{color:var(--ink)}
.run--next .run__badge{background:var(--sand);color:var(--ink-soft)}
.run--done{opacity:.48}
.run--done .run__badge{background:var(--sage);color:var(--ink-soft)}

/* ---------- FORM ---------- */
.form{padding:clamp(24px,4vw,42px)}
.field{margin-bottom:20px}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field label{display:block;font-size:.76rem;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-soft);margin-bottom:8px}
.field label i{color:#c0392b;font-style:normal}
.field input,.field select,.field textarea{
  width:100%;padding:13px 15px;border:1px solid var(--line);border-radius:12px;
  background:var(--cream);transition:.25s;font-size:.95rem;font-weight:300;
}
.field input:focus,.field select:focus,.field textarea:focus{outline:0;border-color:var(--gold-soft);background:#fff;box-shadow:0 0 0 3px rgba(217,190,106,.16)}
.field input.is-err,.chips.is-err{border-color:#c0392b}
.field textarea{resize:vertical}
.chips{display:flex;gap:10px;flex-wrap:wrap;border:1px solid transparent;border-radius:12px}
.chip{position:relative;cursor:pointer}
.chip input{position:absolute;opacity:0;pointer-events:none}
.chip span{display:inline-block;padding:11px 20px;border:1px solid var(--line);border-radius:999px;background:#fff;font-size:.88rem;transition:.25s}
.chip:hover span{border-color:var(--gold-soft)}
.chip input:checked + span{background:var(--ink);color:#fff;border-color:var(--ink)}
.chip--yes input:checked + span{background:#6FA97B;border-color:#6FA97B}
.chip--no input:checked + span{background:#B9877F;border-color:#B9877F}
.check{display:flex!important;align-items:center;gap:9px;margin-top:12px;text-transform:none!important;letter-spacing:0!important;font-size:.85rem!important;cursor:pointer;color:var(--ink-soft)}
.check input{width:auto!important}
.form__msg{text-align:center;margin:14px 0 0;font-size:.9rem;min-height:22px}
.form__msg.ok{color:#4E8B5C}
.form__msg.err{color:#c0392b}

/* ---------- GIFT ---------- */
.gifts{display:grid;grid-template-columns:repeat(auto-fit,minmax(272px,1fr));gap:22px}
.giftcard{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:28px 24px;text-align:center;box-shadow:var(--shadow-sm)}
.giftcard__role{font-size:.68rem;letter-spacing:.3em;text-transform:uppercase;color:var(--gold);margin:0 0 4px}
.giftcard__name{font-size:1.35rem;margin-bottom:16px}
.giftcard__qr{width:186px;height:186px;margin:0 auto 16px;border:1px solid var(--line);border-radius:12px;padding:8px;background:#fff}
.giftcard__qr img{width:100%;height:100%;object-fit:contain}
.giftcard__row{display:flex;justify-content:space-between;gap:10px;font-size:.88rem;padding:7px 0;border-bottom:1px dashed var(--line)}
.giftcard__row span:first-child{color:var(--muted)}
.giftcard__row b{font-weight:500;text-align:right}
.giftcard .btn{margin-top:16px}

/* ---------- FOOTER ---------- */
.footer{padding:clamp(56px,8vw,92px) 0 40px;background:linear-gradient(180deg,var(--sand),var(--blush))}
.footer__thanks{margin:0 0 8px}
.footer__names{font-size:clamp(1.6rem,4vw,2.2rem)}
.footer__date{color:var(--ink-soft);font-size:.9rem;margin:6px 0 24px}
.footer__share{display:flex;gap:10px;justify-content:center;flex-wrap:wrap}
.footer__credit{margin:34px 0 0;font-size:.72rem;letter-spacing:.2em;text-transform:uppercase;color:var(--muted)}

/* ---------- TOAST ---------- */
.toast{
  position:fixed;left:50%;bottom:32px;transform:translate(-50%,140%);
  background:var(--ink);color:#fff;padding:13px 26px;border-radius:999px;
  font-size:.88rem;z-index:400;transition:transform .45s cubic-bezier(.2,.8,.3,1);
  box-shadow:var(--shadow);max-width:90vw;text-align:center;
}
.toast.is-show{transform:translate(-50%,0)}

/* ---------- PETALS ---------- */
.petals{position:fixed;inset:0;pointer-events:none;z-index:90}

/* ---------- REVEAL ---------- */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .9s cubic-bezier(.2,.8,.3,1),transform .9s cubic-bezier(.2,.8,.3,1)}
.reveal.is-in{opacity:1;transform:none}

@keyframes fadeUp{from{opacity:0;transform:translateY(24px)}to{opacity:1;transform:none}}
@keyframes beat{0%,100%{transform:scale(1)}14%{transform:scale(1.15)}28%{transform:scale(1)}42%{transform:scale(1.12)}}

/* ---------- RESPONSIVE ---------- */
@media (max-width:980px){
  .couple{grid-template-columns:1fr;gap:44px}
  .couple__heart{padding-top:0}
}
@media (max-width:1040px){
  .nav__burger{display:flex}
  .nav__brand{opacity:1}
  .nav__list{
    position:fixed;inset:0 0 0 auto;width:min(80vw,300px);
    background:var(--cream);flex-direction:column;justify-content:center;
    gap:24px;padding:40px;transform:translateX(100%);transition:.45s cubic-bezier(.2,.8,.3,1);
    box-shadow:-18px 0 44px -30px rgba(0,0,0,.4);
  }
  .nav__list.is-open{transform:none}
  .nav__list a{font-size:.9rem}
}
@media (max-width:760px){
  .field-row{grid-template-columns:1fr}
  .families__div{display:none}
  .countdown__cell{min-width:72px;padding:12px 8px}
  .countdown__cell b{font-size:1.6rem}
  .mapbox__frame{min-height:260px;aspect-ratio:1/1}
}
@media (max-width:520px){
  .hero__cta .btn{width:100%}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important}
  html{scroll-behavior:auto}
}

@media print{
  .nav,.music-toggle,.petals,.hero__scroll,.footer__share,.btn{display:none!important}
  body{background:#fff}
}