/* ══════════════════════════════════════════════════════════════
   NOIR ATELIER — HẮC DIỆN THẠCH & BẠCH KIM
   Ngôn ngữ thị giác: tạp chí thời trang cao cấp. Đen tuyệt đối,
   ánh kim loại lạnh, một chút phấn hồng ấm để không vô cảm.
   2 họ font: Italiana (display mảnh, sang) + Be Vietnam Pro.
   ══════════════════════════════════════════════════════════════ */
:root{
  --obsidian:#0D0D0F;    /* đen tuyệt đối — nền chính */
  --charcoal:#16161A;    /* than — nền xen kẽ */
  --graphite:#22222A;    /* chì — thẻ, khối nổi */
  --platinum:#D9D5CD;    /* bạch kim — chữ chính */
  --platinum-lt:#F2F0EB; /* bạch kim sáng — tiêu đề */
  --silver:#8E8C93;      /* bạc xám — chữ phụ */
  --blush:#C9A5A0;       /* phấn hồng — nhấn duy nhất */
  --blush-dp:#A87E79;
  --pearl:#F4F2EE;       /* ngọc trai — nền sáng (dùng rất ít) */
  --line:rgba(217,213,205,.16);
  --line-2:rgba(217,213,205,.08);
  --line-blush:rgba(201,165,160,.4);

  --sh:0 24px 60px rgba(0,0,0,.55);
  --sh-dp:0 36px 96px rgba(0,0,0,.72);
  --glow:0 0 30px rgba(201,165,160,.28);

  --display:'Italiana', Georgia, serif;
  --sans:'Be Vietnam Pro', system-ui, sans-serif;
  --ease:cubic-bezier(.19,1,.28,1);
  --page:min(560px,100%);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;background:#08080A;color:var(--platinum);
  font-family:var(--sans);font-weight:200;font-size:16px;line-height:1.85;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
body.locked{overflow:hidden;}
body.zoomed{font-size:19px;}
h1,h2,h3{font-family:var(--display);font-weight:400;margin:0;line-height:1.14;letter-spacing:.01em;}
p{margin:0;} img{max-width:100%;display:block;}
button{font-family:var(--sans);cursor:pointer;border:0;background:none;color:inherit;}
a{color:inherit;}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;}
  html{scroll-behavior:auto;}
}
.stage{width:var(--page);margin:0 auto;background:var(--obsidian);position:relative;overflow:hidden;
  box-shadow:0 0 130px rgba(0,0,0,.85);}

/* ══ TIỆN ÍCH ══ */
.sec{padding:104px 30px;position:relative;}
.sec--sm{padding:76px 30px;}
.sec--alt{background:var(--charcoal);}
.ctr{text-align:center;}
.eyebrow{font-size:9.5px;letter-spacing:.44em;text-transform:uppercase;color:var(--blush);font-weight:300;}
.h-sec{font-size:clamp(28px,7.6vw,38px);margin-top:16px;color:var(--platinum-lt);}
.h-sec em{font-style:normal;color:var(--blush);}
.lead{margin-top:16px;font-size:14.5px;color:var(--silver);line-height:1.9;}
.rv{opacity:0;transform:translateY(26px);transition:opacity 1.15s var(--ease),transform 1.15s var(--ease);}
.rv.on{opacity:1;transform:none;}
.rv-d1{transition-delay:.12s;}.rv-d2{transition-delay:.24s;}.rv-d3{transition-delay:.36s;}

/* Ngày tháng tách ký tự — dấu ấn thị giác của skin */
.spaced{letter-spacing:.42em;font-variant-numeric:tabular-nums;}

/* Đường kẻ kim loại */
.metal-rule{height:1px;background:linear-gradient(90deg,transparent,var(--line),transparent);
  transform:scaleX(0);transition:transform 1.4s var(--ease);}
.rv.on .metal-rule{transform:scaleX(1);}

/* ══════════════════════════════════════════════════════════════
   [0] MÀN MỞ — ÁNH SÁNG QUÉT LỘ CHỮ KHẮC
   ══════════════════════════════════════════════════════════════ */
#veil{position:fixed;inset:0;z-index:200;background:#08080A;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  padding:0 26px;transition:opacity 1.2s var(--ease),visibility 1.2s;overflow:hidden;}
#veil.gone{opacity:0;visibility:hidden;pointer-events:none;}
.veil-in{position:relative;z-index:3;text-align:center;max-width:430px;width:100%;}

/* Tấm kim loại khắc chữ */
.plaque{position:relative;padding:52px 26px 46px;cursor:pointer;
  background:linear-gradient(160deg,#14141A 0%,#0C0C10 48%,#101016 100%);
  border:1px solid rgba(217,213,205,.14);
  box-shadow:inset 0 1px 0 rgba(217,213,205,.08),0 30px 70px rgba(0,0,0,.7);
  overflow:hidden;transition:transform 1.1s var(--ease),opacity .9s ease;}
.plaque::after{content:'';position:absolute;inset:9px;border:1px solid rgba(217,213,205,.07);pointer-events:none;}
.plaque .lbl{font-size:9px;letter-spacing:.46em;text-transform:uppercase;color:rgba(217,213,205,.34);}
.plaque .nm{margin:18px 0 6px;font-family:var(--display);font-size:clamp(30px,8.4vw,40px);line-height:1.16;
  color:#3A3A42;                             /* chữ "chìm" trong kim loại */
  transition:color 1s .6s ease,text-shadow 1s .6s ease;}
.plaque .amp{display:block;font-size:.44em;color:#33333B;margin:6px 0;transition:color 1s .6s ease;}
.plaque .dt{margin-top:14px;font-size:11px;color:#35353D;transition:color 1s .8s ease;}
/* sau khi quét sáng: chữ nổi lên như khắc laser */
.plaque.lit .nm{color:var(--platinum-lt);
  text-shadow:0 1px 0 rgba(0,0,0,.9),0 -1px 0 rgba(217,213,205,.28),0 0 26px rgba(201,165,160,.22);}
.plaque.lit .amp{color:var(--blush);}
.plaque.lit .dt{color:var(--silver);}
/* tia sáng quét */
.plaque .beam{position:absolute;top:-20%;bottom:-20%;width:130px;left:-160px;pointer-events:none;
  background:linear-gradient(100deg,transparent,rgba(255,255,255,.03) 22%,rgba(255,255,255,.16) 48%,rgba(255,255,255,.03) 74%,transparent);
  filter:blur(2px);}
.plaque.sweep .beam{animation:sweep 1.5s cubic-bezier(.4,0,.2,1) forwards;}
@keyframes sweep{to{left:110%;}}
.plaque.open{transform:translateY(-14px) scale(.97);opacity:0;}

.veil-guest{margin-top:24px;font-size:13px;color:var(--silver);}
.veil-guest b{font-weight:400;color:var(--platinum);}
.veil-hint{margin-top:14px;font-size:9.5px;letter-spacing:.32em;text-transform:uppercase;color:var(--blush);
  opacity:.7;animation:breathe 2.8s ease-in-out infinite;}
@keyframes breathe{0%,100%{opacity:.4}50%{opacity:.9}}
.veil-btn{margin-top:22px;padding:14px 36px;border:1px solid var(--line-blush);color:var(--blush);
  font-size:9.5px;letter-spacing:.32em;text-transform:uppercase;transition:.42s var(--ease);}
.veil-btn:hover{background:var(--blush);color:var(--obsidian);border-color:var(--blush);box-shadow:var(--glow);}

/* ══════════════════════════════════════════════════════════════
   [1] HERO — có đèn rọi theo con trỏ
   ══════════════════════════════════════════════════════════════ */
#hero{position:relative;min-height:100svh;display:flex;flex-direction:column;align-items:center;
  justify-content:center;text-align:center;padding:80px 28px 96px;overflow:hidden;}
#hero .ph{position:absolute;inset:0;background:var(--tcdt-hero-image) center/cover;
  filter:grayscale(1) contrast(1.18) brightness(.42);
  animation:ken 32s ease-in-out infinite alternate;}
@keyframes ken{from{transform:scale(1.05);}to{transform:scale(1.17) translateY(-2%);}}
#hero .grad{position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(13,13,15,.62) 0%,rgba(13,13,15,.4) 34%,rgba(13,13,15,.94) 100%);}
/* đèn rọi */
#spot{position:absolute;inset:0;pointer-events:none;opacity:0;transition:opacity 1.2s ease;
  background:radial-gradient(220px 220px at var(--mx,50%) var(--my,42%),
    rgba(244,242,238,.15) 0%,rgba(244,242,238,.05) 42%,transparent 72%);}
#spot.on{opacity:1;}
.hero-in{position:relative;z-index:3;}
.hero-eyebrow{font-size:9px;letter-spacing:.5em;text-transform:uppercase;color:var(--blush);opacity:.85;}
.hero-names{margin:20px 0 6px;font-size:clamp(40px,11.4vw,58px);line-height:1.08;color:var(--platinum-lt);}
.hero-names .amp{display:block;font-size:.4em;color:var(--blush);margin:10px 0 6px;letter-spacing:.3em;}
.hero-line{width:120px;height:1px;margin:20px auto;background:linear-gradient(90deg,transparent,var(--blush),transparent);
  transform:scaleX(0);transition:transform 1.5s .4s var(--ease);}
.hero-line.on{transform:scaleX(1);}
.hero-date{font-family:var(--display);font-size:15px;color:var(--platinum);}
.hero-venue{margin-top:9px;font-size:12.5px;color:var(--silver);}
.cue{position:absolute;bottom:28px;left:50%;transform:translateX(-50%);z-index:3;
  font-size:9px;letter-spacing:.34em;text-transform:uppercase;color:var(--silver);opacity:.55;
  animation:bob 2.8s ease-in-out infinite;}
@keyframes bob{0%,100%{transform:translate(-50%,0);}50%{transform:translate(-50%,6px);}}

/* ══════════════════════════════════════════════════════════════
   [2] THẺ MỜI CÁ NHÂN — có số bàn
   ══════════════════════════════════════════════════════════════ */
.ticket{max-width:400px;margin:32px auto 0;position:relative;
  background:linear-gradient(158deg,var(--graphite),#191920);
  border:1px solid var(--line);box-shadow:var(--sh);overflow:hidden;}
.ticket::before{content:'';position:absolute;left:0;right:0;top:0;height:2px;
  background:linear-gradient(90deg,transparent,var(--blush),transparent);}
.ticket-top{padding:26px 24px 20px;text-align:center;}
.ticket-lbl{font-size:9px;letter-spacing:.42em;text-transform:uppercase;color:var(--silver);}
.ticket-name{margin-top:12px;font-family:var(--display);font-size:clamp(24px,6.6vw,30px);color:var(--platinum-lt);line-height:1.3;}
.ticket-perf{border-top:1px dashed rgba(217,213,205,.16);position:relative;}
.ticket-perf::before,.ticket-perf::after{content:'';position:absolute;top:-9px;width:18px;height:18px;
  border-radius:50%;background:var(--obsidian);}
.sec--alt .ticket-perf::before,.sec--alt .ticket-perf::after{background:var(--charcoal);}
.ticket-perf::before{left:-9px;} .ticket-perf::after{right:-9px;}
.ticket-bot{display:grid;grid-template-columns:1fr 1px 1fr;gap:0;}
.ticket-cell{padding:18px 14px;text-align:center;}
.ticket-cell .k{font-size:8.5px;letter-spacing:.3em;text-transform:uppercase;color:var(--silver);}
.ticket-cell .v{margin-top:6px;font-family:var(--display);font-size:22px;color:var(--blush);}
.ticket-div{background:rgba(217,213,205,.12);}

/* ══════════════════════════════════════════════════════════════
   [3] LỜI MỜI
   ══════════════════════════════════════════════════════════════ */
.inv{max-width:420px;margin:0 auto;text-align:center;}
.inv-role{font-size:9.5px;letter-spacing:.36em;text-transform:uppercase;color:var(--blush);}
.inv-guest{font-family:var(--display);font-size:clamp(26px,7vw,32px);color:var(--platinum-lt);margin:16px 0 4px;}
.inv-body{margin-top:24px;font-size:15px;color:var(--silver);line-height:2.05;}
.inv-quote{margin-top:26px;font-family:var(--display);font-size:19px;color:var(--blush);line-height:1.6;}
.inv-sign{margin-top:26px;font-size:10px;letter-spacing:.3em;text-transform:uppercase;color:var(--platinum);}

/* ══════════════════════════════════════════════════════════════
   [4] CÔ DÂU & CHÚ RỂ
   ══════════════════════════════════════════════════════════════ */
.duo{margin-top:40px;display:grid;gap:36px;}
.person{text-align:center;}
.pf{width:172px;aspect-ratio:4/5;margin:0 auto 18px;position:relative;overflow:hidden;box-shadow:var(--sh);}
.pf img{width:100%;height:100%;object-fit:cover;filter:grayscale(1) contrast(1.1) brightness(.95);
  transition:filter 1.3s var(--ease),transform 1.2s var(--ease);}
.person:hover .pf img,.person.touched .pf img{filter:grayscale(0) contrast(1);transform:scale(1.04);}
.pf::after{content:'';position:absolute;inset:0;box-shadow:inset 0 0 0 1px rgba(217,213,205,.2);}
.p-role{font-size:9px;letter-spacing:.42em;text-transform:uppercase;color:var(--blush);}
.p-name{font-family:var(--display);font-size:27px;color:var(--platinum-lt);margin-top:8px;}
.p-desc{margin-top:10px;font-size:13.5px;color:var(--silver);max-width:250px;margin-inline:auto;line-height:1.85;}
.p-par{margin-top:16px;font-size:13px;color:var(--silver);line-height:1.85;}
.p-par span{display:block;font-size:8.5px;letter-spacing:.3em;text-transform:uppercase;color:var(--blush);
  opacity:.85;margin-bottom:4px;}
.duo-amp{text-align:center;font-family:var(--display);font-size:26px;color:var(--blush);letter-spacing:.3em;}
.photo-hint{margin-top:14px;text-align:center;font-size:9px;letter-spacing:.24em;text-transform:uppercase;
  color:var(--silver);opacity:.55;}

/* ══════════════════════════════════════════════════════════════
   [5] ĐẾM NGƯỢC — BẢNG LẬT SÂN BAY
   ══════════════════════════════════════════════════════════════ */
.flap{margin-top:36px;display:flex;justify-content:center;gap:11px;}
.flap-u{flex:1;max-width:82px;}
.flap-box{position:relative;height:78px;perspective:340px;
  background:linear-gradient(180deg,#1C1C22 0%,#111116 49.6%,#0B0B0F 50.4%,#15151A 100%);
  border:1px solid rgba(217,213,205,.14);box-shadow:inset 0 1px 0 rgba(217,213,205,.06);}
.flap-box::after{content:'';position:absolute;left:0;right:0;top:50%;height:1px;background:rgba(0,0,0,.85);z-index:5;}
.flap-txt{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  font-family:var(--display);font-size:34px;color:var(--platinum-lt);font-variant-numeric:tabular-nums;}
.flap-next{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  font-family:var(--display);font-size:34px;color:var(--platinum-lt);font-variant-numeric:tabular-nums;
  clip-path:inset(0 0 50% 0);transform-origin:bottom;transform:rotateX(90deg);
  background:linear-gradient(180deg,#1C1C22,#111116);z-index:4;}
.flap-box.go .flap-top{animation:flapDown .38s cubic-bezier(.4,0,.4,1) forwards;}
.flap-box.go .flap-next{animation:flapUp .38s .34s cubic-bezier(.4,0,.4,1) forwards;}
.flap-top{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  font-family:var(--display);font-size:34px;color:var(--platinum-lt);font-variant-numeric:tabular-nums;
  clip-path:inset(0 0 50% 0);transform-origin:bottom;
  background:linear-gradient(180deg,#1C1C22,#111116);z-index:3;}
@keyframes flapDown{to{transform:rotateX(-90deg);}}
@keyframes flapUp{to{transform:rotateX(0);}}
.flap-l{margin-top:11px;text-align:center;font-size:8.5px;letter-spacing:.3em;text-transform:uppercase;color:var(--silver);}

/* ══════════════════════════════════════════════════════════════
   [6] SỰ KIỆN
   ══════════════════════════════════════════════════════════════ */
.ev{margin-top:28px;padding:30px 24px;border:1px solid var(--line);position:relative;
  background:linear-gradient(160deg,rgba(217,213,205,.035),transparent 58%);}
.ev+.ev{margin-top:18px;}
.ev-tag{font-size:9px;letter-spacing:.36em;text-transform:uppercase;color:var(--blush);}
.ev-name{font-family:var(--display);font-size:22px;color:var(--platinum-lt);margin-top:8px;}
.ev-time{font-family:var(--display);font-size:34px;color:var(--platinum-lt);margin-top:14px;font-variant-numeric:tabular-nums;}
.ev-date{margin-top:6px;font-size:10.5px;letter-spacing:.24em;text-transform:uppercase;color:var(--silver);}
.ev-lunar{margin-top:3px;font-size:12.5px;color:var(--silver);opacity:.72;font-style:italic;}
.ev-venue{margin-top:18px;font-family:var(--display);font-size:18px;color:var(--platinum);}
.ev-addr{margin-top:5px;font-size:13px;color:var(--silver);line-height:1.7;}
.btn{display:inline-flex;align-items:center;gap:8px;margin-top:20px;padding:12px 28px;
  border:1px solid var(--line);color:var(--platinum);font-size:9.5px;letter-spacing:.28em;
  text-transform:uppercase;text-decoration:none;transition:.42s var(--ease);}
.btn:hover{background:var(--platinum);color:var(--obsidian);border-color:var(--platinum);}
.btn--blush{border-color:var(--line-blush);color:var(--blush);}
.btn--blush:hover{background:var(--blush);color:var(--obsidian);border-color:var(--blush);box-shadow:var(--glow);}
.btn svg{width:13px;height:13px;stroke:currentColor;fill:none;stroke-width:1.5;}
.map{margin-top:16px;aspect-ratio:16/10;border:1px solid var(--line-2);overflow:hidden;
  max-height:0;opacity:0;transition:max-height .75s var(--ease),opacity .5s;}
.map.on{max-height:420px;opacity:1;}
.map iframe{width:100%;height:100%;border:0;filter:grayscale(1) invert(.9) contrast(.9);}
.map-toggle{margin-top:14px;font-size:9.5px;letter-spacing:.26em;text-transform:uppercase;color:var(--blush);
  border-bottom:1px solid var(--line-blush);padding-bottom:3px;transition:.3s;}
.map-toggle:hover{color:var(--platinum);border-color:var(--platinum);}
/* Timeline trong ngày */
.day-tl{margin-top:26px;}
.day-tl .row{display:grid;grid-template-columns:58px 1fr;gap:14px;padding:12px 0;
  border-top:1px solid var(--line-2);align-items:baseline;}
.day-tl .row:last-child{border-bottom:1px solid var(--line-2);}
.day-tl .t{font-family:var(--display);font-size:16px;color:var(--blush);font-variant-numeric:tabular-nums;}
.day-tl .d{font-size:13.5px;color:var(--silver);}

/* ══════════════════════════════════════════════════════════════
   [7] CÂU CHUYỆN
   ══════════════════════════════════════════════════════════════ */
.tl{margin-top:40px;}
.tl-i{padding:30px 0;border-top:1px solid var(--line-2);display:grid;grid-template-columns:52px 1fr;gap:18px;}
.tl-i:last-child{border-bottom:1px solid var(--line-2);}
.tl-y{font-family:var(--display);font-size:17px;color:var(--blush);}
.tl-h{font-family:var(--display);font-size:21px;color:var(--platinum-lt);}
.tl-p{margin-top:9px;font-size:14px;color:var(--silver);line-height:1.95;}

/* ══════════════════════════════════════════════════════════════
   [8] ALBUM
   ══════════════════════════════════════════════════════════════ */
.gal{margin-top:32px;display:grid;grid-template-columns:repeat(2,1fr);gap:10px;}
.gal figure{margin:0;overflow:hidden;cursor:zoom-in;position:relative;aspect-ratio:3/4;}
.gal figure:nth-child(1),.gal figure:nth-child(6){grid-column:span 2;aspect-ratio:16/10;}
.gal img{width:100%;height:100%;object-fit:cover;filter:grayscale(1) contrast(1.08) brightness(.94);
  transition:filter 1.2s var(--ease),transform 1.2s var(--ease);}
.gal figure:hover img,.gal figure.touched img{filter:grayscale(0) contrast(1) brightness(1);transform:scale(1.04);}
.gal figure::after{content:'';position:absolute;inset:0;box-shadow:inset 0 0 0 1px rgba(217,213,205,.14);}
#lb{position:fixed;inset:0;z-index:180;background:rgba(8,8,10,.97);display:none;
  align-items:center;justify-content:center;padding:22px;}
#lb.on{display:flex;}
#lb img{max-width:100%;max-height:86vh;box-shadow:var(--sh-dp);}
#lb button{position:absolute;width:44px;height:44px;color:var(--platinum);font-size:26px;}
#lb .x{top:16px;right:18px;} #lb .prev{left:6px;top:50%;transform:translateY(-50%);} #lb .next{right:6px;top:50%;transform:translateY(-50%);}

/* ══════════════════════════════════════════════════════════════
   [9] RSVP WIZARD 3 BƯỚC
   ══════════════════════════════════════════════════════════════ */
.wiz{margin-top:28px;border:1px solid var(--line);background:var(--graphite);box-shadow:var(--sh);}
.wiz-bar{display:flex;border-bottom:1px solid var(--line-2);}
.wiz-bar div{flex:1;padding:14px 6px;text-align:center;font-size:9px;letter-spacing:.24em;
  text-transform:uppercase;color:var(--silver);opacity:.5;position:relative;transition:.4s;}
.wiz-bar div.on{opacity:1;color:var(--blush);}
.wiz-bar div.on::after{content:'';position:absolute;left:0;right:0;bottom:-1px;height:1px;background:var(--blush);}
.wiz-bar div.done{opacity:.85;color:var(--platinum);}
.wiz-body{padding:28px 24px;}
.step{display:none;animation:stepIn .5s var(--ease);}
.step.on{display:block;}
@keyframes stepIn{from{opacity:0;transform:translateX(14px);}}
.step-q{font-family:var(--display);font-size:21px;color:var(--platinum-lt);margin-bottom:18px;}
.opt-list{display:flex;flex-direction:column;gap:9px;}
.opt-list button{display:flex;align-items:flex-start;gap:12px;padding:14px 15px;
  border:1px solid var(--line-2);text-align:left;transition:.32s var(--ease);}
.opt-list button:hover{border-color:var(--line);}
.opt-list button.on{border-color:var(--blush);background:rgba(201,165,160,.08);}
.opt-list .dot{flex:none;width:14px;height:14px;border:1px solid rgba(217,213,205,.4);
  margin-top:4px;position:relative;transform:rotate(45deg);}
.opt-list button.on .dot{border-color:var(--blush);}
.opt-list button.on .dot::after{content:'';position:absolute;inset:3px;background:var(--blush);}
.opt-list .t{font-size:14px;color:var(--platinum);}
.opt-list .s{font-size:12px;color:var(--silver);margin-top:2px;line-height:1.6;}
.wiz-nav{display:flex;gap:9px;margin-top:24px;}
.wiz-nav button{flex:1;padding:13px 6px;border:1px solid var(--line-2);font-size:9.5px;
  letter-spacing:.26em;text-transform:uppercase;color:var(--silver);transition:.35s;}
.wiz-nav button:hover{border-color:var(--line);color:var(--platinum);}
.wiz-nav .next{background:var(--platinum);border-color:var(--platinum);color:var(--obsidian);}
.wiz-nav .next:hover{background:var(--platinum-lt);color:var(--obsidian);}

label{display:block;font-size:9px;letter-spacing:.3em;text-transform:uppercase;color:var(--blush);margin:20px 0 8px;}
label:first-of-type{margin-top:0;}
label .opt{text-transform:none;letter-spacing:0;color:var(--silver);}
input[type=text],textarea,select{width:100%;border:0;border-bottom:1px solid var(--line-2);
  background:transparent;padding:11px 2px;font-family:var(--sans);font-size:16px;color:var(--platinum-lt);
  outline:none;border-radius:0;transition:border-color .35s;}
input::placeholder,textarea::placeholder{color:var(--silver);opacity:.45;}
input:focus,textarea:focus,select:focus{border-color:var(--blush);}
select option{background:var(--graphite);color:var(--platinum);}
textarea{resize:vertical;min-height:74px;}
.num{display:flex;align-items:center;gap:18px;margin-top:6px;}
.num button{width:40px;height:40px;border:1px solid var(--line-2);font-size:19px;color:var(--platinum);transition:.3s;}
.num button:hover{border-color:var(--blush);color:var(--blush);}
.num span{font-family:var(--display);font-size:24px;min-width:32px;text-align:center;color:var(--platinum-lt);}
.hp{position:absolute;left:-9999px;opacity:0;}
.shard{position:fixed;z-index:190;pointer-events:none;}

/* ══════════════════════════════════════════════════════════════
   [10] HỘP MỪNG ĐA TIỀN TỆ
   ══════════════════════════════════════════════════════════════ */
.cur{display:flex;gap:8px;margin-top:24px;}
.cur button{flex:1;padding:12px 0;border:1px solid var(--line-2);font-size:10px;letter-spacing:.22em;
  text-transform:uppercase;color:var(--silver);transition:.3s;}
.cur button.on{border-color:var(--blush);color:var(--blush);background:rgba(201,165,160,.08);}
.cpane{display:none;padding-top:24px;}
.cpane.on{display:block;animation:stepIn .45s var(--ease);}
.tabs{display:flex;gap:8px;}
.tabs button{flex:1;padding:11px 0;border:1px solid var(--line-2);font-size:10px;letter-spacing:.2em;
  text-transform:uppercase;color:var(--silver);transition:.3s;}
.tabs button.on{background:var(--platinum);border-color:var(--platinum);color:var(--obsidian);}
.pane{display:none;text-align:center;padding-top:24px;}
.pane.on{display:block;animation:stepIn .45s var(--ease);}
.qr{width:168px;height:168px;margin:0 auto;padding:10px;background:#fff;box-shadow:var(--sh);}
.bank{margin-top:16px;font-family:var(--display);font-size:19px;color:var(--platinum-lt);}
.acct{margin-top:5px;font-size:14.5px;color:var(--platinum);letter-spacing:.08em;font-variant-numeric:tabular-nums;}
.owner{margin-top:3px;font-size:10px;letter-spacing:.2em;text-transform:uppercase;color:var(--silver);}
.swift{margin-top:18px;display:grid;grid-template-columns:auto 1fr;gap:8px 16px;text-align:left;
  max-width:330px;margin-inline:auto;font-size:13px;}
.swift .k{font-size:8.5px;letter-spacing:.24em;text-transform:uppercase;color:var(--silver);padding-top:4px;}
.swift .v{color:var(--platinum);font-variant-numeric:tabular-nums;letter-spacing:.04em;}
.copy{margin-top:16px;border:1px solid var(--line-2);padding:9px 18px;font-size:9.5px;
  letter-spacing:.24em;text-transform:uppercase;color:var(--platinum);transition:.3s;}
.copy:hover{border-color:var(--blush);color:var(--blush);}

/* ══════════════════════════════════════════════════════════════
   [11] LỜI CHÚC
   ══════════════════════════════════════════════════════════════ */
.wlist{margin-top:26px;display:flex;flex-direction:column;gap:0;}
.w{padding:20px 0;border-top:1px solid var(--line-2);animation:wIn .6s var(--ease) both;}
.w:last-child{border-bottom:1px solid var(--line-2);}
@keyframes wIn{from{opacity:0;transform:translateY(10px);}}
.w-head{display:flex;justify-content:space-between;align-items:baseline;gap:12px;}
.w-n{font-family:var(--display);font-size:17px;color:var(--platinum-lt);}
.w-i{font-family:var(--display);font-size:12px;color:var(--silver);opacity:.6;font-variant-numeric:tabular-nums;}
.w-m{margin-top:6px;font-size:13.5px;color:var(--silver);line-height:1.85;}
.w-badge{font-size:8.5px;letter-spacing:.18em;text-transform:uppercase;color:var(--blush);
  border:1px solid var(--line-blush);padding:2px 7px;margin-left:9px;vertical-align:middle;}

/* ══════════════════════════════════════════════════════════════
   [12] CẢM ƠN
   ══════════════════════════════════════════════════════════════ */
#thanks{text-align:center;padding-bottom:118px;
  background:radial-gradient(120% 70% at 50% 100%,#1A1A20 0%,#0D0D0F 55%,#08080A 100%);}
.th-h{font-family:var(--display);font-size:clamp(24px,6.4vw,32px);line-height:1.45;color:var(--platinum-lt);}
.th-h em{font-style:normal;color:var(--blush);}
.th-sig{margin-top:24px;font-family:var(--display);font-size:26px;color:var(--platinum);}
.th-date{margin-top:10px;font-size:10px;letter-spacing:.42em;color:var(--silver);}
.acts{margin-top:36px;display:flex;flex-wrap:wrap;gap:22px;justify-content:center;}
.acts button{font-size:9px;letter-spacing:.3em;text-transform:uppercase;color:var(--platinum);
  border-bottom:1px solid var(--line);padding-bottom:5px;transition:.35s var(--ease);}
.acts button:hover{color:var(--blush);border-color:var(--blush);}
.credit{margin-top:52px;font-size:8.5px;letter-spacing:.28em;text-transform:uppercase;color:rgba(217,213,205,.2);}

/* ══ NÚT NỔI + TOAST ══ */
.fabs{position:fixed;right:15px;bottom:18px;z-index:120;display:flex;flex-direction:column;gap:9px;}
.fab{width:44px;height:44px;display:flex;align-items:center;justify-content:center;
  background:var(--graphite);border:1px solid var(--line);color:var(--platinum);
  box-shadow:0 10px 26px rgba(0,0,0,.5);transition:.35s var(--ease);font-size:11px;letter-spacing:.04em;}
.fab:hover{border-color:var(--blush);color:var(--blush);}
.fab.lang{font-size:10px;letter-spacing:.1em;}
.dia{width:14px;height:14px;background:var(--platinum);transform:rotate(45deg);}
[data-play="1"] .dia{background:var(--blush);animation:pulse 2s ease-in-out infinite;}
@keyframes pulse{0%,100%{transform:rotate(45deg) scale(1);}50%{transform:rotate(45deg) scale(.72);}}
#toast{position:fixed;left:50%;bottom:24px;transform:translate(-50%,150%);z-index:220;
  background:var(--graphite);border:1px solid var(--line);color:var(--platinum-lt);padding:14px 26px;
  font-size:13.5px;box-shadow:var(--sh-dp);transition:transform .55s var(--ease);max-width:88vw;text-align:center;}
#toast.on{transform:translate(-50%,0);}
#prog{position:fixed;top:0;left:0;height:1px;width:0;z-index:150;
  background:linear-gradient(90deg,var(--silver),var(--blush));}

@media(min-width:768px){
  .stage{--page:600px;}
  .sec{padding:124px 48px;}
  .duo{grid-template-columns:1fr auto 1fr;align-items:center;gap:22px;}
}