:root{
  --brand:#7b2ff7;
  --brand-2:#c04bd6;
  --pink:#ff9ad5;
  --ink:#2b0a5e;
}
*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent;}
html{height:100%;overflow:hidden;}
body{
  height:100%;background:#160430;overflow:hidden;
  font-family:"Be Vietnam Pro",-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  display:flex;align-items:center;justify-content:center;
}

/* ---- Khung cố định 968x1800, tự thu phóng vừa màn hình (biến --s do JS set) ---- */
.phone{
  position:relative;
  width:968px;
  height:1800px;
  flex:0 0 auto;
  transform:scale(var(--s,1));
  transform-origin:center center;
  overflow:hidden;
  background:var(--ink);
  box-shadow:0 0 60px rgba(123,47,247,.35);
}

/* ---- Reel cuộn + snap từng section ---- */
.reel{
  height:100%;
  overflow-y:scroll;
  overflow-x:hidden;
  scroll-snap-type:y mandatory;
  scroll-behavior:smooth;
  -webkit-overflow-scrolling:touch;
  scrollbar-width:none;
}
.reel::-webkit-scrollbar{display:none;}

.sec{
  position:relative;
  height:100%;
  width:100%;
  scroll-snap-align:start;
  scroll-snap-stop:always;
  overflow:hidden;
  background:var(--ink);
}

.layer{
  position:absolute;inset:0;
  width:100%;height:100%;
  object-fit:cover;
  object-position:center;
  pointer-events:none;
  user-select:none;
  will-change:transform,opacity;
  backface-visibility:hidden;
}

/* ============ TRẠNG THÁI BAN ĐẦU (ẩn) ============ */
.l-bg   { transform:scale(1.14); }
.l-demo { opacity:0; transform:translateY(46px) scale(.9); }
.l-text { opacity:0; transform:translateY(60px); }
.l-pop  { opacity:0; transform:scale(.2); }
.l-rise { opacity:0; transform:translateY(70px) scale(.96); }
.l-bar  { opacity:0; transform:scaleX(0); transform-origin:center left; }
.l-bub  { opacity:0; }

.l-bg,.l-demo,.l-text,.l-pop,.l-rise,.l-bar{
  transition:opacity .8s ease, transform 1s cubic-bezier(.22,1,.36,1);
  transition-delay:var(--d,0s);
}
.l-bg{ transition-duration:1.6s; }
.l-pop{ transition-timing-function:cubic-bezier(.34,1.7,.5,1); transition-duration:.75s; }
.l-bub{ transition:opacity 1s ease; transition-delay:var(--d,0s); }

/* ============ KHI SECTION ACTIVE (hiện + chạy) ============ */
.sec.active .l-bg   { transform:scale(1); }
.sec.active .l-demo { opacity:1; transform:none; }
.sec.active .l-text { opacity:1; transform:none; }
.sec.active .l-pop  { opacity:1; transform:none; }
.sec.active .l-rise { opacity:1; transform:none; }
.sec.active .l-bar  { opacity:1; transform:none; }
.sec.active .l-bub  { opacity:1; animation:float var(--dur,6s) ease-in-out var(--d,0s) infinite; }

@keyframes float{
  0%,100%{ transform:translateY(0) }
  50%    { transform:translateY(-18px) }
}

/* nhịp thở nhẹ cho ảnh sản phẩm sau khi vào */
.sec.active .l-demo.breathe{ animation:breathe 5s ease-in-out .9s infinite; }
@keyframes breathe{ 0%,100%{transform:translateY(0)} 50%{transform:translateY(-10px)} }

/* ============ DOTS điều hướng ============ */
.dots{
  position:absolute;top:50%;right:10px;transform:translateY(-50%);
  z-index:30;display:flex;flex-direction:column;gap:9px;
}
.dots b{
  width:8px;height:8px;border-radius:50%;
  background:rgba(255,255,255,.35);cursor:pointer;
  transition:all .35s ease;border:none;padding:0;
}
.dots b.on{ background:#fff;height:22px;border-radius:5px;box-shadow:0 0 10px rgba(255,255,255,.8); }

/* ============ Gợi ý vuốt xuống ============ */
.hint{
  position:absolute;left:50%;bottom:14px;transform:translateX(-50%);
  z-index:30;color:#fff;text-align:center;font-size:12px;letter-spacing:.5px;
  text-shadow:0 2px 8px rgba(0,0,0,.4);pointer-events:none;
  transition:opacity .5s ease;
}
.hint .chev{
  display:block;margin:6px auto 0;width:16px;height:16px;
  border-right:2px solid #fff;border-bottom:2px solid #fff;
  transform:rotate(45deg);animation:bob 1.4s ease-in-out infinite;
}
@keyframes bob{0%,100%{transform:rotate(45deg) translate(0,0);opacity:.5}50%{transform:rotate(45deg) translate(4px,4px);opacity:1}}
.hint.hide{opacity:0;}

/* ============ CTA nổi bật ============ */
.cta{
  position:absolute;left:50%;bottom:52px;transform:translateX(-50%) translateY(160px);
  z-index:31;
  background:linear-gradient(90deg,#ff3d87,#ff2d95 40%,#b14bff);
  color:#fff;font-weight:900;font-size:18px;letter-spacing:.6px;
  border:2px solid rgba(255,255,255,.85);border-radius:999px;
  padding:16px 44px;cursor:pointer;white-space:nowrap;overflow:hidden;
  box-shadow:0 12px 34px rgba(255,45,149,.6),0 0 0 6px rgba(255,45,149,.12);
  transition:transform .55s cubic-bezier(.22,1,.36,1);
  display:flex;align-items:center;gap:9px;
}
.cta .cta-ic{width:22px;height:22px;fill:#fff;flex:0 0 auto;}
.cta.show{ animation:ctaIn .55s cubic-bezier(.22,1,.36,1) forwards, ctaGlow 1.8s ease-in-out .55s infinite; }
@keyframes ctaIn{ to{ transform:translateX(-50%) translateY(0); } }
@keyframes ctaGlow{
  0%,100%{ box-shadow:0 12px 30px rgba(255,45,149,.55),0 0 0 4px rgba(255,45,149,.12); }
  50%    { box-shadow:0 14px 48px rgba(255,45,149,.95),0 0 0 12px rgba(255,45,149,.05); }
}
.cta::after{
  content:"";position:absolute;top:0;left:-70%;width:45%;height:100%;
  background:linear-gradient(100deg,transparent,rgba(255,255,255,.55),transparent);
  transform:skewX(-20deg);animation:ctaShine 2.6s ease-in-out .6s infinite;
}
@keyframes ctaShine{ 0%{left:-70%} 55%,100%{left:140%} }
.cta:active{ transform:translateX(-50%) translateY(2px) scale(.97); }

/* ============ Loading ============ */
.loader{
  position:absolute;inset:0;z-index:60;background:var(--ink);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:18px;
  transition:opacity .6s ease;
}
.loader.gone{opacity:0;pointer-events:none;}
.loader .logo{
  font-weight:900;font-size:34px;letter-spacing:2px;color:#fff;
  display:flex;align-items:center;gap:10px;
}
.loader .logo .p{
  width:44px;height:44px;border-radius:12px;background:#fff;color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:26px;
}
.ring{width:38px;height:38px;border-radius:50%;border:3px solid rgba(255,255,255,.2);border-top-color:#ff8fd0;animation:spin 1s linear infinite;}
@keyframes spin{to{transform:rotate(360deg)}}

@media (prefers-reduced-motion: reduce){
  .l-bg,.l-demo,.l-text,.l-pop,.l-rise,.l-bar,.l-bub{transition:opacity .3s!important;transform:none!important;}
  .sec.active .l-bub,.cta.show,.breathe{animation:none!important;}
  .reel{scroll-behavior:auto;}
}

/* ============================================================
   POPUP ĐẶT HÀNG
   ============================================================ */
.modal{
  position:fixed;inset:0;z-index:100;
  display:none;align-items:flex-end;justify-content:center;
}
.modal.open{display:flex;}
@media(min-width:520px){ .modal{align-items:center;} }

.modal-bg{
  position:absolute;inset:0;
  background:rgba(20,4,40,.6);
  -webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);
  animation:mfade .3s ease;
}
.sheet{
  position:relative;width:100%;max-width:440px;
  max-height:92vh;overflow-y:auto;
  background:#fff;border-radius:22px 22px 0 0;
  padding:24px 18px 26px;
  box-shadow:0 -10px 40px rgba(0,0,0,.3);
  animation:mslide .35s cubic-bezier(.22,1,.36,1);
}
@media(min-width:520px){ .sheet{border-radius:22px;animation:mpop .3s ease;} }
@keyframes mslide{from{transform:translateY(100%)}to{transform:none}}
@keyframes mpop{from{transform:scale(.9);opacity:0}to{transform:none;opacity:1}}
@keyframes mfade{from{opacity:0}to{opacity:1}}

.x{
  position:absolute;top:12px;right:12px;z-index:2;
  border:none;background:#f1eef8;width:32px;height:32px;border-radius:50%;
  font-size:20px;line-height:1;color:#6a2cd0;cursor:pointer;
}
.sh-title{font-size:20px;font-weight:800;color:var(--ink);padding-right:30px;}
.sh-title span{color:#b14bff;}
.sh-sub{font-size:12.5px;color:#7a6ea0;margin:5px 0 16px;}

.packs{display:flex;flex-direction:column;gap:9px;margin-bottom:14px;}
.pack{
  display:flex;align-items:center;gap:11px;
  border:2px solid #eee;border-radius:14px;padding:11px 12px;
  cursor:pointer;transition:.2s;position:relative;
}
.pack.sel{border-color:#b14bff;background:#faf5ff;}
.pack .radio{width:20px;height:20px;border-radius:50%;border:2px solid #ccc;flex:0 0 auto;position:relative;transition:.2s;}
.pack.sel .radio{border-color:#b14bff;}
.pack.sel .radio:after{content:"";position:absolute;inset:4px;border-radius:50%;background:#b14bff;}
.pack .pk-main{flex:1;min-width:0;}
.pack .pk-label{font-weight:700;font-size:14px;color:#2b0a5e;}
.pack .pk-price{color:#e0348b;font-weight:800;font-size:15px;}
.pack .pk-old{color:#aaa;text-decoration:line-through;font-size:12px;margin-left:6px;font-weight:500;}
.pack .pk-tag{position:absolute;top:-8px;right:10px;background:#ff5fa2;color:#fff;font-size:10px;font-weight:700;padding:2px 8px;border-radius:8px;white-space:nowrap;}
.pack .pk-save{display:inline-block;margin-top:4px;background:#e8f9f0;color:#1c9e63;font-size:11.5px;font-weight:700;padding:2px 8px;border-radius:6px;}

.fld{
  width:100%;border:1.5px solid #e5e0f0;border-radius:12px;
  padding:12px 14px;font-size:14px;margin-bottom:9px;
  font-family:inherit;color:#2b0a5e;outline:none;transition:.2s;
}
.fld::placeholder{color:#a99fc0;}
.fld:focus{border-color:#b14bff;box-shadow:0 0 0 3px rgba(177,75,255,.12);}
textarea.fld{resize:none;}
.err{color:#e02424;font-size:12.5px;min-height:16px;margin-bottom:2px;}
.total{display:flex;justify-content:space-between;align-items:center;font-size:14px;color:#666;margin:4px 0 2px;}
.total b{font-size:22px;color:#e0348b;}
.save-line{text-align:right;color:#1c9e63;font-size:13px;font-weight:700;min-height:18px;margin-bottom:10px;}
.submit{
  width:100%;border:none;border-radius:14px;padding:15px;
  font-size:16px;font-weight:800;color:#fff;letter-spacing:.3px;
  background:linear-gradient(90deg,#ff5fa2,#b14bff);
  cursor:pointer;box-shadow:0 8px 20px rgba(177,75,255,.4);transition:.15s;
}
.submit:active{transform:scale(.98);}
.submit:disabled{opacity:.6;cursor:default;}
.assure{text-align:center;font-size:12px;color:#9a8fb5;margin-top:10px;}

.ord-success{display:none;text-align:center;padding:16px 6px 4px;}
.ord-success.show{display:block;animation:mfade .3s ease;}
.tick{
  width:66px;height:66px;border-radius:50%;
  background:linear-gradient(135deg,#5ad19a,#2bb673);color:#fff;
  font-size:34px;display:flex;align-items:center;justify-content:center;
  margin:0 auto 14px;box-shadow:0 8px 20px rgba(43,182,115,.4);
  animation:mpop .4s cubic-bezier(.34,1.56,.64,1);
}
.ss-title{font-size:20px;font-weight:800;color:var(--ink);}
.ss-sub{font-size:14px;color:#7a6ea0;margin:6px 0 18px;}
.ss-actions{display:flex;gap:10px;margin-bottom:10px;}
.ss-btn{flex:1;text-decoration:none;text-align:center;padding:12px;border-radius:12px;font-weight:700;font-size:14px;color:#fff;}
.ss-btn.zalo{background:#0068ff;}
.ss-btn.call{background:#22c55e;}
.ss-close{border:none;background:none;color:#9a8fb5;font-size:14px;cursor:pointer;padding:6px;}