:root {
  /* Bảng màu lấy từ thiệp giấy: đỏ son, vàng champagne, kem */
  --red: #9a1c20;
  --red-dark: #6e1215;
  --gold: #fbd3a0;        /* chữ/hoạ tiết trên nền đỏ */
  --gold-deep: #c08a4a;   /* đường kẻ, nhãn trên nền kem */
  --gold-soft: #ecd3ae;
  --cream: #fdf4e4;
  --cream-2: #fae9cf;
  --ink: #4a1a14;
  --muted: #86584a;
  --script: 'Great Vibes', cursive;
  --serif: 'Playfair Display', 'Times New Roman', serif;
  --sans: 'Lora', Georgia, serif;
  /* Viền hồi văn (meander) như dải vàng trên thiệp; tô màu bằng background-color qua mask */
  --key: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 30'%3E%3Cpath d='M0 1.5H24M0 28.5H24M0 24.5H24M20.5 24.5V5.5H5.5V20H15.5V10H10V15' fill='none' stroke='%23000' stroke-width='2'/%3E%3C/svg%3E");
}

* { box-sizing: border-box; }
/* Playfair mặc định số kiểu cũ ("0" trông như "o"). !important vì mỗi khai báo font: gộp đều reset thuộc tính này */
* { font-variant-numeric: lining-nums !important; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--sans);
  font-weight: 400;
  font-size: 1.05rem;
  color: var(--ink);
  background: var(--cream);
  line-height: 1.6;
}
body.locked { overflow: hidden; }
img { max-width: 100%; }

.script { font-family: var(--script); font-weight: 400; }
.key {
  display: block; height: 15px; background-color: currentColor;
  -webkit-mask: var(--key) repeat-x left center / 12px 15px; mask: var(--key) repeat-x left center / 12px 15px;
}

.btn {
  display: inline-block;
  padding: .75rem 2rem;
  border: 1px solid var(--gold-deep);
  border-radius: 999px;
  background: var(--red);
  color: var(--gold);
  font: 600 .85rem var(--serif);
  letter-spacing: .12em; text-transform: uppercase;
  cursor: pointer;
  text-decoration: none;
  transition: transform .2s, background .2s;
}
.btn:hover { transform: translateY(-2px); background: var(--red-dark); color: var(--gold); }
.btn:disabled { opacity: .6; cursor: wait; }
.btn-outline { background: transparent; color: var(--red); border-color: var(--red); }
.btn-outline:hover { background: var(--red); color: var(--gold); }

/* ---------- Cổng: bao thư đỏ, rồng bên trái, phượng bên phải ---------- */
.gate {
  position: fixed; inset: 0; z-index: 100;
  perspective: 1600px;
  display: grid; place-items: center;
}
.door {
  position: absolute; top: 0; bottom: 0; width: 50%; overflow: hidden;
  background:
    radial-gradient(circle at 50% 45%, rgba(255,255,255,.07), transparent 65%),
    var(--red);
  transition: transform 1.4s cubic-bezier(.6,.05,.3,1);
  box-shadow: inset 0 0 80px rgba(0,0,0,.28);
}
.door-left { left: 0; transform-origin: left center; }
.door-right { right: 0; transform-origin: right center; }
/* Đường chỉ may nét đứt chạy quanh mép bao thư */
.door-frame { position: absolute; inset: 14px; border: 1px dashed rgba(251,211,160,.55); }
.door-left .door-frame { right: 0; border-right: 0; border-radius: 8px 0 0 8px; }
.door-right .door-frame { left: 0; border-left: 0; border-radius: 0 8px 8px 0; }
.dragon { position: absolute; top: 5%; left: 6%; width: min(80%, 330px); }
.phoenix { position: absolute; bottom: 5%; right: 6%; width: min(72%, 280px); }
.stamp { position: absolute; top: 5%; right: 9%; width: clamp(34px, 9%, 62px); }
.seal {
  position: relative; z-index: 2;
  text-align: center; color: var(--gold);
  padding: 2rem 1rem;
  max-width: calc(100vw - 32px);
  transition: opacity .5s;
}
.seal-hy { width: clamp(110px, 28vw, 160px); display: block; margin: 0 auto 1rem; }
.seal-names {
  font: 400 clamp(1.45rem, 6.4vw, 2.6rem) var(--serif); text-transform: uppercase;
  letter-spacing: .03em; margin: 0 0 .6rem; white-space: nowrap;
}
.seal-names b { font-weight: inherit; }
.seal-date { font: 600 clamp(.8rem, 3.4vw, 1.05rem) var(--serif); letter-spacing: .32em; margin: 0; }

.gate.open .door-left { transform: rotateY(-105deg); }
.gate.open .door-right { transform: rotateY(105deg); }
.gate.open .seal { opacity: 0; pointer-events: none; }
.gate.gone { display: none; }

/* ---------- Khung ảnh: hiện placeholder tới khi có ảnh thật (app.js thêm .has-img) ---------- */
.ph {
  position: relative; overflow: hidden;
  background-color: var(--cream-2);
  background-image:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23c9a227' stroke-width='1.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M3 8a2 2 0 0 1 2-2h2l1.5-2h7L17 6h2a2 2 0 0 1 2 2v10a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2z'/%3E%3Ccircle cx='12' cy='13' r='4'/%3E%3C/svg%3E"),
    linear-gradient(135deg, var(--gold-soft), var(--cream-2) 75%);
  background-repeat: no-repeat;
  background-position: center 42%, center;
  background-size: 36px, cover;
}
.ph::after {
  content: attr(data-label);
  position: absolute; left: 0; right: 0; top: calc(42% + 26px);
  padding: 0 .5rem; text-align: center;
  font-size: .85rem; line-height: 1.3; color: var(--muted);
}
.ph.has-img { background-size: cover; background-position: center; }
.ph.has-img::after { content: none; }

/* ---------- Ảnh nền cả section (app.js thêm .has-img khi có ảnh) ----------
   --veil: lớp phủ màu để chữ vẫn dễ đọc trên ảnh */
.bgph { position: relative; isolation: isolate; background-size: cover; background-position: center; background-repeat: no-repeat; }
/* 2 class để thắng các khai báo background: gộp của từng section (vốn reset size/repeat → ảnh lặp, không phủ kín) */
.bgph.has-img { background-size: cover; background-repeat: no-repeat; }
.bgph.has-img::before { content: ''; position: absolute; inset: 0; z-index: -1; background: var(--veil); }
.bgph:not(.has-img)::after {
  content: 'Ảnh nền: ' attr(data-label);
  position: absolute; left: 12px; bottom: 10px; font-size: .75rem; opacity: .5;
}

/* ---------- Bìa ---------- */
.hero {
  min-height: 100vh; min-height: 100svh;
  display: grid; place-items: center;
  padding: 3rem 16px 5rem;
  position: relative; isolation: isolate; overflow: hidden;
  /* quầng sáng ấm ở giữa + vân giấy nhẹ */
  background:
    radial-gradient(ellipse 70% 60% at 50% 45%, #fffaf0 0%, rgba(255,250,240,0) 70%),
    var(--cream);
}
/* 囍 khổng lồ in chìm phía sau bố cục */
.hero::before {
  content: ''; position: absolute; inset: 0; z-index: -1; pointer-events: none;
  background-color: var(--gold-deep); opacity: .07;
  -webkit-mask: url(img/deco/hy.png) center 46% / min(88vw, 80vh) auto no-repeat;
  mask: url(img/deco/hy.png) center 46% / min(88vw, 80vh) auto no-repeat;
}
.hero::after {
  content: ''; position: absolute; inset: 0; z-index: -1; pointer-events: none; opacity: .5; mix-blend-mode: multiply;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 .55 0 0 0 0 .4 0 0 0 0 .25 0 0 0 .09 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
/* Rồng – phượng nằm ở lề trái/phải của bìa (desktop), tô vàng đậm cho nổi trên nền kem;
   lề được chừa đủ rộng nên không đè lên ảnh hay thiệp. Màn nhỏ không đủ lề thì ẩn. */
.hero-deco {
  display: none; position: absolute; z-index: 1; pointer-events: none;
  background-color: var(--gold-deep);
  -webkit-mask: center / contain no-repeat; mask: center / contain no-repeat;
}
.dragon-deco { -webkit-mask-image: url(img/deco/dragon.png); mask-image: url(img/deco/dragon.png); aspect-ratio: 560 / 528; }
.phoenix-deco { -webkit-mask-image: url(img/deco/phoenix.png); mask-image: url(img/deco/phoenix.png); aspect-ratio: 420 / 506; }
.hero-inner { display: grid; justify-items: center; width: 100%; }
/* Mobile: ảnh vòm phía trên, thẻ tên đè nhẹ lên mép dưới ảnh */
.hero { align-content: start; gap: 0; }
/* Ảnh vòm xếp lớp như giấy: tấm vòm đỏ xoay nghiêng phía sau + đường vòm vàng lệch ra ngoài */
.hero-frame { position: relative; width: min(100% - 28px, 400px); aspect-ratio: 3 / 4; }
.hero-frame::before, .hero-frame::after {
  content: ''; position: absolute; border-radius: 999px 999px 16px 16px; pointer-events: none;
}
.hero-frame::before {
  inset: 0; z-index: -1; background: var(--red);
  transform: translate(14px, 10px) rotate(4deg);
  box-shadow: 0 24px 50px rgba(110,18,21,.25);
}
.hero-frame::after { inset: -13px 13px 13px -13px; border: 1px solid var(--gold-deep); }
.hero-photo {
  width: 100%; height: 100%;
  border-radius: 999px 999px 16px 16px;
  border: 3px solid #fffaf0;
  box-shadow: 0 18px 44px rgba(60,10,12,.28);
}
.hero-photo.has-img { background-position: center 30%; }
.hero .hero-inner { margin-top: -70px; position: relative; padding: 0 12px; }
.hero-card { text-align: center; max-width: 560px; width: 100%; position: relative; }
/* viền vàng mảnh bên trong như thiệp in */
.hero-card::before {
  content: ''; position: absolute; inset: 9px; border: 1px solid rgba(251,211,160,.45);
  border-radius: 9px; pointer-events: none;
}

/* Xuất hiện khi cửa mở: ảnh nổi lên, thiệp theo sau, rồng phượng bay vào rồi lơ lửng */
@keyframes rise-in { from { opacity: 0; transform: translateY(36px); } }
@keyframes fly-in-l { from { opacity: 0; transform: translate(-60px, 20px) rotate(-6deg); } }
@keyframes fly-in-r { from { opacity: 0; transform: translate(60px, 20px) rotate(6deg); } }
@keyframes hover-a { 50% { transform: translateY(-12px) rotate(-1.5deg); } }
@keyframes hover-b { 50% { transform: translateY(10px) rotate(1.5deg); } }
body.opened .hero-frame { animation: rise-in 1.1s .2s cubic-bezier(.2,.8,.2,1) both; }
body.opened .hero-card { animation: rise-in 1.1s .5s cubic-bezier(.2,.8,.2,1) both; }
body.opened .dragon-deco { animation: fly-in-l 1.4s .7s cubic-bezier(.2,.8,.2,1) both, hover-a 7s 2.1s ease-in-out infinite; }
body.opened .phoenix-deco { animation: fly-in-r 1.4s .9s cubic-bezier(.2,.8,.2,1) both, hover-b 8s 2.3s ease-in-out infinite; }

/* Thiệp đỏ chữ vàng (bìa + gia đình) */
.red-card {
  background:
    radial-gradient(circle at 50% 30%, rgba(255,255,255,.07), transparent 60%),
    var(--red);
  color: var(--gold);
  border-radius: 14px;
  padding: 2rem 1.5rem 2.2rem;
  box-shadow: 0 24px 60px rgba(110,18,21,.25);
}
/* 囍 nằm giữa dải hồi văn chạy ngang mép thiệp */
.hy-band {
  display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: .6rem;
  margin: 0 -1.5rem 1.2rem;
}
.hy-band img { width: 88px; }
.caps {
  font: 400 .8rem var(--serif); text-transform: uppercase; letter-spacing: .08em;
  line-height: 1.7; margin: 0 0 .6rem;
}
.caps b { font-weight: 700; }
.card-title {
  font: 700 clamp(2rem, 8.5vw, 2.6rem) var(--serif); text-transform: uppercase;
  letter-spacing: .08em; line-height: 1.15; margin: 0 0 .4rem;
}
.names { margin: .4rem 0 1rem; font-weight: 400; }
.name { display: block; font: 400 clamp(2.6rem, 12vw, 3.7rem) var(--script); line-height: 1.2; }
.tags { display: flex; align-items: center; justify-content: center; gap: .5rem; margin: .1rem 0 .3rem; }
.tag {
  background: var(--gold); color: var(--red);
  font: italic 600 .72rem var(--serif); text-transform: uppercase; letter-spacing: .06em;
  padding: .2rem .8rem; border-radius: 2px 12px 2px 12px; min-width: 6.2rem;
}
.amp { font: 400 2.2rem var(--serif); line-height: 1; }
.lunar-note { font: italic .85rem var(--serif); margin: 0; opacity: .9; }
.scroll-hint {
  position: absolute; bottom: 1.5rem; left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center;
  color: var(--muted); font-size: .75rem; text-decoration: none;
  animation: bob 1.8s infinite;
}
@keyframes bob { 50% { transform: translate(-50%, 6px); } }

/* ---------- Section chung ---------- */
.section { padding: 5rem 16px; text-align: center; }
.section.alt { background: var(--cream-2); }
.title {
  font: 400 clamp(2.6rem, 9vw, 3.4rem) var(--script);
  color: var(--red); margin: 0 0 2.5rem; line-height: 1.2;
}
.label { text-transform: uppercase; letter-spacing: .2em; font: 600 .78rem var(--serif); color: var(--gold-deep); margin: 0 0 .5rem; }

/* ---------- Ngày cưới ---------- */
#ngay-cuoi { --veil: rgba(253,248,239,.9); }
.date-card { max-width: 460px; margin: 0 auto 3rem; scroll-margin-top: 24px; }
.date-row {
  display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 1rem;
  font-family: var(--serif);
}
.weekday, .month-year {
  padding: .6rem 0; border-top: 1px solid var(--gold-deep); border-bottom: 1px solid var(--gold-deep);
  font-size: 1rem;
}
.day { font-size: clamp(4rem, 16vw, 5.5rem); color: var(--red); line-height: 1; font-weight: 700; }
.lunar { font-family: var(--serif); font-style: italic; color: var(--muted); margin: 1.2rem 0 0; }

/* Đếm ngược tới lễ vu quy */
.countdown { max-width: 460px; margin: -1.5rem auto 3rem; }
.cd-boxes { display: grid; grid-template-columns: repeat(4, 1fr); gap: .6rem; }
.cd-boxes div {
  background: var(--red); border-radius: 12px;
  padding: .7rem 0 .5rem; box-shadow: 0 6px 16px rgba(110,18,21,.18);
}
.cd-boxes b { display: block; font: 700 clamp(1.7rem, 7vw, 2.3rem) var(--serif); color: var(--gold); line-height: 1.1; }
.cd-boxes span { font: italic .85rem var(--serif); color: var(--gold-soft); }
.countdown.done .cd-boxes { display: none; }
.countdown.done .label { font: 400 2.2rem var(--script); text-transform: none; letter-spacing: 0; color: var(--red); }

/* Lịch tháng 12, khoanh ngày cưới */
.cal {
  max-width: 380px; margin: 0 auto 3rem;
  background: #fffaf0; border: 1px solid var(--red); border-radius: 12px;
  outline: 1px solid var(--red); outline-offset: -7px;
  padding: 1.4rem 1.1rem 1.2rem;
}
.cal-title { font: 400 2rem var(--script); color: var(--red); margin: 0 0 .75rem; }
.cal-grid { display: grid; grid-template-columns: repeat(7, 1fr); row-gap: .35rem; }
.cal-grid b { font: 600 .75rem var(--serif); color: var(--gold-deep); padding-bottom: .35rem; }
.cal-grid span { position: relative; line-height: 2.3; font-size: .95rem; }
.cal-grid > :nth-child(7n) { color: var(--red); }
.cal .wedding { font-weight: 700; color: var(--red); }
.add-cal { display: inline-flex; align-items: center; gap: .5rem; margin-top: 1.1rem; font-size: .85rem; padding: .75rem 1.6rem; }
.ring {
  position: absolute; left: 50%; top: 50%; width: 2.6em; height: 2.6em;
  transform: translate(-50%, -50%) rotate(-8deg); overflow: visible; pointer-events: none;
}
.ring path {
  fill: none; stroke: var(--red); stroke-width: 5; stroke-linecap: round;
  stroke-dasharray: 1; stroke-dashoffset: 1;
}
.cal.in .ring path { animation: draw-ring 1.2s .5s ease-out forwards; }
@keyframes draw-ring { to { stroke-dashoffset: 0; } }
.events {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem; max-width: 900px; margin: 0 auto;
}
/* Thiệp vòm (lót cung): nền kem, viền đỏ dày + chỉ đỏ mảnh bên trong */
.venue {
  display: flex; flex-direction: column; align-items: center;
  background: var(--cream-2); color: var(--red);
  border: 9px solid var(--red);
  border-radius: 50% 50% 14px 14px / 170px 170px 14px 14px;
  box-shadow: inset 0 0 0 5px var(--cream-2), inset 0 0 0 6.5px var(--red), 0 18px 40px rgba(110,18,21,.15);
  padding: 2.2rem 1.4rem 2rem;
}
.venue p { margin: 0; }
.venue .betel { width: 118px; margin: .2rem 0 1rem; }
/* thẻ ít chữ hơn: chia khoảng trống trên/dưới để chữ nằm giữa, nút bản đồ vẫn thẳng hàng */
.venue .betel + * { margin-top: auto !important; }
.venue .caps { font-size: .78rem; }
.venue-name { font: 700 clamp(2.2rem, 9vw, 2.7rem) var(--serif); letter-spacing: .04em; margin: .3rem 0 .1rem; line-height: 1.15; }
.hall { font: 400 .95rem var(--serif); }
.venue .addr { font: italic 600 .88rem var(--serif); color: var(--ink); margin: .4rem 0 .8rem !important; }
.at { font: 700 .82rem var(--serif); text-transform: uppercase; letter-spacing: .06em; }
.big-date { font: 700 2rem var(--serif); letter-spacing: .14em; line-height: 1.3; }
.venue .lunar-note { color: var(--muted); }
/* Mốc giờ: đón khách – lễ cưới – khai tiệc, nối bằng đường chấm có tim ở giữa */
.steps {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: .5rem; width: 100%;
  margin: 1.2rem 0 .4rem; padding-bottom: 1rem; position: relative;
  background: linear-gradient(90deg, var(--red) 50%, transparent 0) 0 100% / 8px 1px repeat-x;
}
.steps::after { content: '♥'; position: absolute; left: 50%; bottom: -.62rem; transform: translateX(-50%); font-size: .9rem; background: var(--cream-2); padding: 0 .3rem; }
.steps div { display: flex; flex-direction: column; align-items: center; line-height: 1.25; }
.steps svg { width: 28px; height: 28px; fill: none; stroke: currentColor; stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; margin-bottom: .2rem; }
.steps span { font: italic 600 .72rem var(--serif); }
.steps b { font: 400 .78rem var(--serif); }
.welcome { font: italic 1rem var(--serif); color: var(--red); line-height: 1.5; margin: 1rem 0 1.4rem !important; }
/* Nút bản đồ luôn nằm đáy thẻ để 2 thẻ thẳng hàng */
.venue .btn { margin-top: auto; }

/* ---------- Gia đình ---------- */
#gia-dinh { --veil: rgba(246,236,217,.88); }
.families {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 110px 1.5rem; max-width: 760px; margin: 110px auto 0;
}
.family p { margin: .2rem 0; }
.family .side { font: italic 400 1.15rem var(--serif); margin-bottom: .4rem; }
.parent { font: 700 1rem var(--serif); text-transform: uppercase; letter-spacing: .05em; }
.parent .rel { font: italic 400 1rem var(--serif); text-transform: none; letter-spacing: 0; margin-right: .25rem; }
.family .addr { font: italic .88rem var(--serif); color: var(--gold-soft); opacity: .95; }
/* Ảnh chân dung oval nhô lên trên thẻ */
.portrait {
  width: 132px; aspect-ratio: 4 / 5; border-radius: 50%;
  margin: -100px auto 1.25rem;
  box-shadow: 0 0 0 5px var(--red), 0 0 0 6px var(--gold), 0 12px 26px rgba(110,18,21,.25);
}
.portrait::after { font-size: .75rem; }

/* ---------- Dải ảnh ngang + câu trích ---------- */
.band {
  min-height: 60vh; min-height: 60svh;
  display: grid; place-items: center;
  padding: 4rem 16px; text-align: center;
}
.band::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(rgba(154,28,32,.45), rgba(80,14,16,.62));
}
.band { background-size: 0 0, cover; }
.band::after { top: auto; bottom: 1rem; color: rgba(255,255,255,.75); }
.band blockquote { position: relative; z-index: 1; margin: 0; max-width: 760px; color: #fff; }
.band blockquote p { margin: 0; color: var(--gold); font: 400 clamp(2.3rem, 8vw, 3.8rem) var(--script); line-height: 1.3; text-shadow: 0 2px 12px rgba(0,0,0,.25); }
.addr { color: var(--muted); font-size: .9rem; margin-top: 1rem !important; }

/* ---------- Carousel timeline ---------- */
.carousel { position: relative; max-width: 900px; margin: 0 auto; }
.track {
  display: flex; gap: 1.25rem;
  overflow-x: auto; scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  padding: 1rem 0 2.5rem;
  scrollbar-width: none;
  /* đường timeline chạy ngang dưới thẻ */
  background: linear-gradient(var(--gold-deep), var(--gold-deep)) 0 calc(100% - 1.2rem) / 100% 1px no-repeat;
}
.track::-webkit-scrollbar { display: none; }
.carousel { --slide: min(80%, 300px); }
.slide {
  flex: 0 0 var(--slide);
  scroll-snap-align: center;
  background: #fffdf8; border-radius: 14px;
  box-shadow: 0 8px 24px rgba(111,13,16,.08);
  padding: 0 0 1.25rem; overflow: hidden;
  position: relative; text-align: left;
}
.slide:first-child { margin-left: calc(50% - var(--slide) / 2); }
.slide:last-child { margin-right: calc(50% - var(--slide) / 2); }
/* Ảnh kiểu polaroid, nghiêng nhẹ, có băng dính washi */
.slide .photo {
  aspect-ratio: 1; margin: 18px 18px 0;
  border: 8px solid #fff; border-bottom-width: 26px;
  box-shadow: 0 6px 16px rgba(59,42,32,.18);
  transform: rotate(-2deg); overflow: visible;
}
.slide:nth-child(even) .photo { transform: rotate(1.8deg); }
.slide .photo::before {
  content: ''; position: absolute; z-index: 1; top: -20px; left: 50%;
  width: 84px; height: 24px; transform: translateX(-50%) rotate(-4deg);
  background: rgba(232,212,154,.8); box-shadow: 0 1px 3px rgba(0,0,0,.1);
}
.slide .when, .slide h3, .slide p { padding: 0 1.1rem; }
.when { color: var(--gold-deep); font-family: var(--serif); font-weight: 600; font-size: .85rem; letter-spacing: .1em; margin: 1rem 0 .2rem; }
.slide h3 { font: 400 2rem var(--script); color: var(--red); margin: 0 0 .3rem; }
.slide p:last-child { margin: 0; font-size: .95rem; }
.nav {
  position: absolute; top: 40%; z-index: 2;
  width: 42px; height: 42px; border-radius: 50%;
  border: 1px solid var(--gold-deep); background: rgba(255,255,255,.9);
  color: var(--red); display: grid; place-items: center; padding: 0; cursor: pointer;
}
.nav.prev { left: -6px; }
.nav.next { right: -6px; }
.nav:disabled { opacity: .3; cursor: default; }
.dots { display: flex; justify-content: center; gap: .5rem; }
.dots button {
  width: 10px; height: 10px; padding: 0; border-radius: 50%;
  border: 1px solid var(--gold-deep); background: transparent; cursor: pointer;
  transition: width .3s, background .3s;
}
.dots button.active { background: var(--red); border-color: var(--red); width: 26px; border-radius: 5px; }

/* ---------- Video YouTube 16:9 ---------- */
.video-sec { background: linear-gradient(160deg, var(--red), var(--red-dark)); color: var(--gold-soft); }
/* Cô dâu bên trái, chú rể bên phải video (chỉ màn rộng; nhỏ hơn thì chỉ có video) */
.video-layout {
  display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem 1rem;
  max-width: 1400px; margin: 0 auto; align-items: center;
}
.video-layout .video-frame { grid-column: 1 / -1; order: 3; width: 100%; }
.video-sec .side {
  display: none;
  aspect-ratio: 2 / 3; width: min(100%, 220px);
  border-radius: 999px 999px 14px 14px;
  border: 1px solid var(--gold); outline: 1px solid var(--gold); outline-offset: 5px;
  box-shadow: 0 20px 50px rgba(0,0,0,.4);
}
.video-sec .side:first-child { justify-self: end; }
.video-sec .side.has-img { background-position: center 12%; }
.video-sec .side::after { content: none; }
.video-sec .title, .wishes-sec .title { color: var(--gold); }
.video-frame {
  max-width: 960px; margin: 0 auto; aspect-ratio: 16 / 9;
  border-radius: 14px; overflow: hidden;
  background: #000 var(--thumb) center / cover no-repeat;
  box-shadow: 0 0 0 1px var(--gold), 0 0 0 7px rgba(201,162,39,.18), 0 24px 60px rgba(0,0,0,.45);
}
.video-frame iframe, .video-frame #yt { width: 100%; height: 100%; display: block; border: 0; }

/* ---------- Album ảnh: collage ---------- */
.album {
  display: grid; grid-template-columns: repeat(2, 1fr); grid-auto-rows: 140px;
  grid-auto-flow: dense; gap: 10px; max-width: 1000px; margin: 0 auto;
}
.album .ph { border-radius: 10px; box-shadow: 0 0 0 1px var(--gold-soft); }
.album .tall { grid-row: span 2; }
.album .wide { grid-column: span 2; grid-row: span 2; }
.album .ph.has-img { transition: transform .4s, box-shadow .4s; cursor: zoom-in; }
.album .ph.has-img:hover { transform: scale(1.02); box-shadow: 0 12px 28px rgba(111,13,16,.2); }

/* Popup xem ảnh phóng to */
.lightbox {
  position: fixed; inset: 0; z-index: 200;
  background: rgba(30,6,7,.92);
  animation: lb-in .25s ease-out;
}
/* Dải 3 ảnh (trước | hiện tại | sau), kéo theo ngón tay rồi trượt hẳn sang ảnh kế */
.lb-stage {
  position: absolute; left: 0; right: 0; overflow: hidden; touch-action: none;
  top: calc(56px + env(safe-area-inset-top, 0px)); bottom: calc(56px + env(safe-area-inset-bottom, 0px));
}
.lb-strip { display: flex; height: 100%; transform: translateX(-100%); will-change: transform; }
.lb-strip.anim { transition: transform .26s cubic-bezier(.2,.8,.2,1); }
.lb-slide { flex: 0 0 100%; display: grid; place-items: center; padding: 0 12px; min-width: 0; }
.lb-slide img {
  max-width: 100%; max-height: 100%; object-fit: contain;
  border-radius: 6px; box-shadow: 0 0 0 1px rgba(251,211,160,.5), 0 20px 60px rgba(0,0,0,.5);
  user-select: none; -webkit-user-select: none; -webkit-user-drag: none;
}
@keyframes lb-in { from { opacity: 0; } }
.lightbox[hidden] { display: none; }
.lb-btn {
  position: absolute; z-index: 2; width: 48px; height: 48px; border-radius: 50%;
  border: 1px solid rgba(251,211,160,.6); background: rgba(154,28,32,.85); color: var(--gold);
  display: grid; place-items: center; padding: 0; cursor: pointer;
}
.lb-btn:hover { background: var(--red); }
.lb-prev { left: 12px; top: 50%; transform: translateY(-50%); }
.lb-next { right: 12px; top: 50%; transform: translateY(-50%); }
@media (min-width: 640px) { .lb-slide { padding: 0 88px; } .lb-prev { left: 24px; } .lb-next { right: 24px; } }
.lb-close { right: 12px; top: calc(12px + env(safe-area-inset-top, 0px)); font-size: 1.8rem; }
.lb-count {
  position: absolute; left: 0; right: 0; bottom: calc(16px + env(safe-area-inset-bottom, 0px));
  margin: 0; text-align: center; color: var(--gold); font: 400 .9rem var(--serif); letter-spacing: .2em;
}

/* ---------- Lời chúc ---------- */
.wish-form {
  max-width: 520px; margin: 0 auto 2.5rem;
  display: flex; flex-direction: column; gap: .8rem;
}
.wish-form input, .wish-form textarea {
  width: 100%; padding: .85rem 1rem;
  border: 1px solid var(--gold-soft); border-radius: 10px;
  font: 400 1.1rem var(--sans); color: var(--ink); background: #fff;
  resize: vertical;
}
.wish-form input:focus, .wish-form textarea:focus { outline: 2px solid var(--gold); border-color: transparent; }
.wish-form .btn { align-self: center; }
.hp { position: absolute; left: -9999px; }
.empty { text-align: center; color: var(--muted); font-style: italic; }

.wishes-sec { background: linear-gradient(160deg, var(--red), var(--red-dark)); color: #fff; --veil: rgba(110,18,21,.78); }
.wishes-sec .title { font-size: clamp(2.1rem, 7.5vw, 3rem); max-width: 760px; margin-inline: auto; }
.wishes-sec.has-img { background-position: center 45%; }
.wishes-sec .btn { background: var(--gold); color: var(--red); border-color: var(--gold); }
.wish-layout { display: grid; gap: 1.5rem; max-width: 1100px; margin: 0 auto; }
.wish-layout .wish-form { margin: 0 auto; width: 100%; }

/* Sân khấu bong bóng: lời chúc bay lên rồi mờ dần */
.wishes-sec { padding-block: 4rem; }
.bubbles { position: relative; height: 260px; overflow: hidden; }
.bubbles .empty { position: absolute; inset: auto 0 45%; color: var(--gold-soft); }
.bubble {
  position: absolute; bottom: 0; width: min(240px, 70%);
  padding: .8rem 1rem .9rem; text-align: left;
  background: rgba(255,255,255,.94); color: var(--ink);
  border-radius: 22px 22px 22px 6px;
  box-shadow: 0 10px 30px rgba(0,0,0,.25);
  animation: rise var(--dur, 11s) linear forwards;
}
.bubble::before {
  content: '♥'; position: absolute; top: -12px; right: 14px;
  width: 28px; height: 28px; border-radius: 50%; display: grid; place-items: center;
  background: var(--red); color: #fff; font-size: .9rem; box-shadow: 0 3px 8px rgba(0,0,0,.25);
}
.bubble strong { display: block; font: 400 1.6rem var(--script); color: var(--red); line-height: 1.2; }
.bubble p {
  margin: .2rem 0 0; font-size: 1rem; line-height: 1.35; overflow-wrap: anywhere;
  display: -webkit-box; -webkit-line-clamp: 4; -webkit-box-orient: vertical; overflow: hidden;
}
.heart {
  position: absolute; bottom: 0; color: #ff8a9a; pointer-events: none;
  animation: rise var(--dur, 7s) linear forwards; text-shadow: 0 2px 6px rgba(0,0,0,.2);
}
@keyframes rise {
  0%   { transform: translate(0, 40px) scale(.85); opacity: 0; }
  10%  { opacity: 1; }
  25%  { transform: translate(var(--sway), calc(var(--top) * .25)) scale(1); }
  50%  { transform: translate(calc(var(--sway) * -1), calc(var(--top) * .5)); }
  75%  { opacity: 1; transform: translate(var(--sway), calc(var(--top) * .75)); }
  100% { transform: translate(0, var(--top)); opacity: 0; }
}
/* Không chuyển động: xếp bong bóng tĩnh */
.bubbles.static { height: auto; display: flex; flex-wrap: wrap; gap: 1rem; justify-content: center; overflow: visible; }
.bubbles.static .bubble { position: relative; animation: none; }

/* chừa chỗ dưới cùng cho 2 nút nổi (nhạc, địa điểm) để không che dòng chữ cuối */
.footer { text-align: center; padding: 4rem 16px calc(150px + env(safe-area-inset-bottom, 0px)); background: var(--red); color: #fff3e2; --veil: rgba(120,20,24,.86); }
.footer.has-img { background-position: center 40%; }
.footer-hy { width: 84px; }
.footer .script { font-size: 2.8rem; color: var(--gold); margin: .3rem 0; }
.footer p { margin: 0; }
/* chữ thường (không nghiêng), dày và thưa hơn + bóng nhẹ để đọc rõ trên ảnh nền */
.footer .thanks {
  max-width: 600px; margin: .8rem auto 0;
  font: 400 1.08rem/1.85 var(--sans); letter-spacing: .015em; word-spacing: .06em;
  text-shadow: 0 1px 3px rgba(0,0,0,.45);
}
.footer .made-by { margin-top: 2.5rem; font: 400 .88rem var(--sans); letter-spacing: .03em; color: var(--gold); text-shadow: 0 1px 3px rgba(0,0,0,.45); }

/* ---------- Toast thông báo (gửi lời chúc) ---------- */
.toast {
  /* ở trên cùng: không bị bàn phím điện thoại và các nút nổi góc dưới che */
  position: fixed; left: 50%; top: calc(16px + env(safe-area-inset-top, 0px)); z-index: 150;
  max-width: calc(100vw - 32px); width: max-content;
  display: flex; align-items: center; gap: .6rem;
  padding: .85rem 1.4rem; border-radius: 14px;
  background: var(--red); color: var(--gold); border: 1px solid var(--gold);
  font: italic 1rem var(--serif); box-shadow: 0 12px 32px rgba(110,18,21,.35);
  opacity: 0; transform: translate(-50%, -24px); pointer-events: none;
  transition: opacity .3s, transform .3s;
}
.toast::before { content: '♥'; font-style: normal; }
.toast.err { background: #fff; color: var(--red); border-color: var(--red); }
.toast.err::before { content: '!'; font: 700 1rem var(--serif); }
.toast.show { opacity: 1; transform: translate(-50%, 0); }

/* ---------- Tim rơi khắp màn hình sau khi mở cửa ---------- */
.heart-rain { position: fixed; inset: 0; z-index: 45; pointer-events: none; overflow: hidden; }
.fall-heart {
  position: absolute; top: -30px; line-height: 1;
  text-shadow: 0 1px 3px rgba(110,18,21,.2);
  animation: fall var(--dur, 9s) linear forwards;
}
@keyframes fall {
  0%   { transform: translate(0, 0) rotate(0); opacity: 0; }
  8%   { opacity: .9; }
  50%  { transform: translate(var(--sway), 55vh) rotate(var(--rot)); }
  85%  { opacity: .8; }
  100% { transform: translate(0, calc(100vh + 60px)) rotate(0); opacity: 0; }
}

/* ---------- Nút nổi: tới ngày giờ & địa điểm ---------- */
.to-date {
  position: fixed; right: 16px; bottom: calc(20px + env(safe-area-inset-bottom, 0px));
  z-index: 50; width: 48px; height: 48px; border-radius: 50%;
  border: 1px solid var(--gold); background: var(--red); color: var(--gold);
  display: grid; place-items: center; cursor: pointer;
  box-shadow: 0 6px 18px rgba(110,18,21,.3);
  opacity: 0; transform: translateY(20px); pointer-events: none;
  transition: opacity .3s, transform .3s;
}
.to-date.show { opacity: 1; transform: none; pointer-events: auto; }

/* ---------- Nút nhạc (ngay trên nút tới ngày giờ) ---------- */
.music {
  position: fixed; right: 16px; bottom: calc(80px + env(safe-area-inset-bottom, 0px));
  z-index: 50; width: 48px; height: 48px; border-radius: 50%;
  border: 1px solid var(--gold-deep); background: rgba(255,255,255,.92); color: var(--red);
  display: grid; place-items: center; cursor: pointer;
  box-shadow: 0 6px 18px rgba(111,13,16,.2);
}
.music:not(.playing)::after {
  content: ''; position: absolute; width: 2px; height: 30px;
  background: currentColor; transform: rotate(45deg);
}
.music.playing svg { animation: spin 4s linear infinite; }
.note {
  position: absolute; left: 50%; top: -14px; pointer-events: none;
  font-family: 'Noto Music', 'Apple Symbols', 'Segoe UI Symbol', serif;
  line-height: 1; color: var(--red);
  text-shadow: 0 0 4px #fff, 0 0 2px #fff;
  animation: float-note 2.6s ease-out forwards;
}
.note:nth-child(odd) { color: var(--gold-deep); }
@keyframes float-note {
  0%   { transform: translate(-50%, 0) scale(.5) rotate(0); opacity: 0; }
  15%  { opacity: 1; }
  50%  { transform: translate(calc(-50% + var(--dx) * .5 + 8px), -55px) scale(1) rotate(calc(var(--rot) * -.5)); }
  100% { transform: translate(calc(-50% + var(--dx)), -115px) scale(1.15) rotate(var(--rot)); opacity: 0; }
}
/* Nhạc bị trình duyệt chặn: nhắc khách chạm để bật */
.music.blocked { animation: ring 1.6s infinite; }
.music.blocked::before {
  content: 'Chạm để bật nhạc'; position: absolute; right: 58px; white-space: nowrap;
  padding: .35rem .75rem; border-radius: 999px;
  background: var(--red); color: var(--gold); font: 400 .9rem var(--sans);
  box-shadow: 0 4px 12px rgba(111,13,16,.25);
}
@keyframes ring { 0%,100% { box-shadow: 0 0 0 0 rgba(164,22,26,.45); } 50% { box-shadow: 0 0 0 10px rgba(164,22,26,0); } }
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- Hiệu ứng hiện dần ---------- */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity .9s, transform .9s; }
.reveal.in { opacity: 1; transform: none; }

@media (min-width: 640px) {
  .carousel { --slide: 320px; }
  .album { grid-template-columns: repeat(4, 1fr); grid-auto-rows: 170px; gap: 14px; }
}
@media (min-width: 1024px) {
  body { font-size: 1.12rem; }
  .section { padding: 7rem 32px; }
  /* Desktop: ảnh bên trái, thẻ tên bên phải; lề hai bên dành cho rồng – phượng */
  .hero {
    /* lề rộng ~23vw để rồng – phượng to cỡ ~300px ở màn 1440 mà không đè ảnh/thiệp */
    --gutter: clamp(230px, 23vw, 400px);
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr); align-content: center;
    gap: 2.5rem; padding-inline: var(--gutter);
  }
  .hero-deco { display: block; width: calc(var(--gutter) - 1.5vw); }
  .dragon-deco { left: .75vw; top: 6%; }
  .phoenix-deco { right: .75vw; bottom: 20%; } /* cao hơn nút nhạc cố định ở góc dưới */
  .hero-frame { width: min(100% - 28px, 78vh * .75, 550px); justify-self: end; }
  .hero .hero-inner { margin-top: 0; padding: 0; justify-items: start; }
  .hero-card { max-width: 540px; padding: 2.6rem 1.8rem 2.8rem; }
  .hero-card .hy-band { margin-inline: -1.8rem; }
  .hy-band img { width: 104px; }
  .caps { font-size: .85rem; }
  .families { gap: 2rem; }
  .portrait { width: 150px; margin-top: -110px; }
  .album { grid-auto-rows: 210px; }
  .name { font-size: clamp(2.7rem, 3.4vw, 4.2rem); }
  .title { margin-bottom: 3.5rem; }
  .date-card { max-width: 600px; }
  .families { max-width: 900px; gap: 2rem; }
  .carousel { max-width: 1180px; --slide: 360px; }
  .nav { width: 50px; height: 50px; }
  .nav.prev { left: -60px; }
  .nav.next { right: -60px; }
  /* Bong bóng bên trái, form bên phải */
  .wish-layout { grid-template-columns: 1.2fr 1fr; align-items: center; }
  .wishes-sec { padding-block: 5rem; }
  .wish-layout { max-width: 960px; }
  .bubbles { height: 320px; }
  .to-date { right: 32px; bottom: 32px; }
  .music { right: 32px; bottom: 92px; }
}
@media (min-width: 1024px) and (max-width: 1320px) {
  .nav.prev { left: 0; }
  .nav.next { right: 0; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
  .ring path { stroke-dashoffset: 0; }
}

@media (min-width: 1200px) {
  .video-layout { grid-template-columns: 2fr 5fr 2fr; gap: 2.5rem; }
  .video-layout .video-frame { grid-column: auto; order: 0; max-width: none; }
  .video-sec .side { display: block; width: 100%; }
}