[hidden]{display:none!important}
/* Damine Store — tối, kính mờ, viền neon xanh lơ → tím → hồng. Chủ ý chỉ dùng một giao diện tối. */
:root{
  --bg:#0A0817; --bg2:#141030; --glass:rgba(255,255,255,.045); --glass2:rgba(255,255,255,.08); --edge:rgba(255,255,255,.10);
  --ink:#F3F1FF; --muted:#A3A0C8; --cyan:#2EE6FF; --violet:#7B5CFF; --pink:#FF4FD8; --gold:#FFD43B;
  --on-grad:#0A0817; --danger:#FF7393; --overlay:rgba(4,3,12,.72);
  --grad:linear-gradient(100deg,var(--cyan),var(--violet) 52%,var(--pink));
  --ff-display:"Bricolage Grotesque","Be Vietnam Pro",system-ui,sans-serif;
  --ff-body:"Be Vietnam Pro",system-ui,"Segoe UI",Roboto,sans-serif;
  color-scheme:dark;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;background:var(--bg)}
body{margin:0;color:var(--ink);font-family:var(--ff-body);font-size:16px;line-height:1.55;min-height:100vh;position:relative;
  padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px));padding-block:0 56px}
body::before{content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:
    radial-gradient(620px 420px at 8% -6%,rgba(123,92,255,.38),transparent 62%),
    radial-gradient(520px 420px at 100% 8%,rgba(46,230,255,.20),transparent 62%),
    radial-gradient(700px 520px at 60% 105%,rgba(255,79,216,.16),transparent 62%)}
a{color:var(--cyan);font-weight:600}
button,.btn{font:inherit;font-weight:700;border:0;border-radius:14px;padding:12px 20px;cursor:pointer;background:var(--grad);color:var(--on-grad);
  text-align:center;text-decoration:none;display:inline-block;box-shadow:0 8px 28px -10px rgba(255,79,216,.75);transition:transform .08s ease,filter .15s ease,box-shadow .2s ease}
button:hover,.btn:hover{filter:brightness(1.1);box-shadow:0 10px 34px -8px rgba(255,79,216,.95)}
button:active,.btn:active{transform:translateY(1px)}
button:disabled{opacity:.4;cursor:not-allowed;filter:grayscale(.6);box-shadow:none;transform:none}
button:focus-visible,input:focus-visible,a:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}
.small{font-size:13px;color:var(--muted);margin:0}
.err{color:var(--danger);font-size:14px;min-height:1em;margin:0}
.glass{background:var(--glass);border:1px solid var(--edge);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}

.wrap{max-width:1040px;margin:0 auto;display:flex;flex-direction:column;gap:52px}

/* Đầu trang */
.top{display:flex;justify-content:space-between;align-items:center;gap:12px;padding-top:20px}
.brand{font-family:var(--ff-display);font-weight:800;font-size:21px;letter-spacing:-.02em;display:flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none}
.brand i{width:30px;height:30px;border-radius:9px;background:var(--grad);display:grid;place-items:center;box-shadow:0 0 22px -4px rgba(123,92,255,.9);
  font-style:normal;font-family:var(--ff-display);font-weight:800;font-size:17px;color:var(--on-grad)}
.top a.contact{font-size:14px;text-decoration:none;padding:9px 16px;border-radius:99px;color:var(--ink)}

.hero{display:flex;flex-direction:column;gap:18px;max-width:720px;padding-top:12px}
.hero h1{font-family:var(--ff-display);font-weight:800;font-size:clamp(38px,9vw,70px);line-height:1;letter-spacing:-.04em;margin:0;text-wrap:balance;
  text-shadow:0 0 42px rgba(123,92,255,.45)}
.hero p{font-size:18px;color:var(--muted);margin:0;max-width:50ch}
.facts{list-style:none;margin:6px 0 0;padding:0;display:flex;flex-wrap:wrap;gap:10px}
.facts li{display:flex;align-items:center;gap:8px;font-size:14px;font-weight:500;padding:8px 14px 8px 10px;border-radius:99px}
.facts svg{flex:none;color:var(--cyan)}
.notice{border-radius:14px;padding:12px 16px;font-weight:600;font-size:15px;color:var(--gold);border-color:rgba(255,212,59,.35)!important}

h2{font-family:var(--ff-display);font-weight:700;font-size:28px;letter-spacing:-.025em;margin:0;line-height:1.2}
section > h2{margin-bottom:18px}
.donate > h2{margin-bottom:0}
.sec-head{display:flex;flex-direction:column;gap:14px;margin-bottom:18px}
.sec-head h2{margin:0}

/* Tab nhóm sản phẩm */
.tabs{display:flex;gap:8px;overflow-x:auto;scrollbar-width:none;margin:0 -16px;padding:2px 16px 6px}
.tabs::-webkit-scrollbar{display:none}
.tab{flex:none;background:var(--glass);border:1px solid var(--edge);color:var(--muted);box-shadow:none;border-radius:99px;padding:9px 16px;font-weight:600;font-size:14px}
.tab:hover{color:var(--ink);box-shadow:none;filter:none}
.tab small{opacity:.7;font-weight:500;margin-left:4px}
.tab[aria-selected="true"]{background:var(--grad);color:var(--on-grad);border-color:transparent;box-shadow:0 6px 22px -8px rgba(123,92,255,.9)}

/* Thẻ sản phẩm */
.products{display:grid;grid-template-columns:1fr;gap:14px}
@media (min-width:700px){.products{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1000px){.products{grid-template-columns:repeat(3,minmax(0,1fr))}}
.pcard{position:relative;border-radius:22px;padding:18px;display:grid;grid-template-columns:auto minmax(0,1fr);gap:14px 16px;align-content:start;
  border:1px solid transparent;
  background:linear-gradient(var(--bg2),var(--bg2)) padding-box,linear-gradient(140deg,rgba(255,255,255,.14),rgba(255,255,255,.04)) border-box;
  transition:background .25s ease, box-shadow .25s ease, transform .2s ease}
.pcard:hover{background:linear-gradient(var(--bg2),var(--bg2)) padding-box,var(--grad) border-box;box-shadow:0 18px 50px -22px rgba(123,92,255,.9);transform:translateY(-2px)}
@media (prefers-reduced-motion:reduce){.pcard,.pcard:hover{transition:none;transform:none}}
.term{width:74px;height:74px;border-radius:18px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  background:linear-gradient(150deg,rgba(46,230,255,.16),rgba(255,79,216,.16));border:1px solid rgba(255,255,255,.12)}
.term b{font-family:var(--ff-display);font-weight:800;font-size:32px;line-height:1;letter-spacing:-.04em;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.term span{font-size:12px;font-weight:600;color:var(--muted);margin-top:2px}
.pinfo{display:flex;flex-direction:column;gap:7px;min-width:0}
.pinfo h3{font-family:var(--ff-display);font-weight:700;font-size:19px;line-height:1.2;letter-spacing:-.015em;margin:0}
.chiprow{display:flex;flex-wrap:wrap;gap:6px}
.warr{font-size:12px;font-weight:600;padding:3px 10px;border-radius:99px;color:var(--gold);background:rgba(255,212,59,.10);border:1px solid rgba(255,212,59,.35)}
.nowarr{font-size:12px;font-weight:500;padding:3px 10px;border-radius:99px;color:var(--muted);border:1px solid var(--edge)}
.pnote{font-size:13px;color:var(--muted);margin:0}
.pbuy{grid-column:1/-1;display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:14px;border-top:1px solid var(--edge)}
.price{font-family:var(--ff-display);font-weight:800;font-size:26px;letter-spacing:-.025em;font-variant-numeric:tabular-nums}
.pbuy button{padding:11px 22px}
.pcard.out{opacity:.5}
.pcard.out:hover{transform:none;box-shadow:none}

/* Cách mua: 4 bước nối tiếp */
.steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:12px;counter-reset:s}
.steps li{display:flex;gap:12px;align-items:center;font-size:15px;counter-increment:s;padding:14px 16px;border-radius:16px}
.steps li::before{content:counter(s);flex:none;width:32px;height:32px;border-radius:50%;background:var(--grad);color:var(--on-grad);
  display:grid;place-items:center;font-family:var(--ff-display);font-weight:800;font-size:15px}

/* Ủng hộ */
.donate{border-radius:24px;padding:24px;display:flex;flex-direction:column;gap:14px;max-width:580px;
  border:1px solid transparent;background:linear-gradient(var(--bg2),var(--bg2)) padding-box,var(--grad) border-box;box-shadow:0 20px 60px -30px rgba(255,79,216,.8)}
.donate p{margin:0;color:var(--muted)}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{background:var(--glass);color:var(--ink);border:1px solid var(--edge);box-shadow:none;padding:9px 16px;border-radius:99px;font-weight:600;font-variant-numeric:tabular-nums}
.chip:hover{box-shadow:none;border-color:rgba(255,255,255,.25)}
.chip[aria-pressed="true"]{background:var(--grad);color:var(--on-grad);border-color:transparent}
.amount{display:flex;align-items:center;gap:8px;background:rgba(0,0,0,.25);border:1px solid var(--edge);border-radius:14px;padding:4px 16px}
.amount input[type=text]{flex:1;min-width:0;border:0;background:transparent;padding:8px 0;font-family:var(--ff-display);font-size:28px;font-weight:800;color:var(--ink);font-variant-numeric:tabular-nums}
.amount input[type=text]:focus-visible{outline:none}
.amount:focus-within{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(46,230,255,.18)}
.amount span{font-family:var(--ff-display);font-size:28px;font-weight:800;color:var(--muted)}

footer{font-size:14px;color:var(--muted);text-align:center;padding-top:22px;border-top:1px solid var(--edge)}

/* Khung thanh toán */
input[type=text]{font:inherit;font-size:16px;padding:13px 14px;border:1px solid var(--edge);border-radius:14px;background:rgba(0,0,0,.28);color:var(--ink);width:100%}
input[type=text]::placeholder{color:#76739A}
input[type=text]:focus-visible{outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(46,230,255,.18)}
.sheet-bg{position:fixed;inset:0;background:var(--overlay);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:flex-end;justify-content:center;z-index:20}
.sheet{width:100%;max-width:520px;border-radius:26px 26px 0 0;max-height:92%;overflow:auto;
  border:1px solid transparent;border-bottom:0;background:linear-gradient(var(--bg2),var(--bg2)) padding-box,var(--grad) border-box;
  padding:12px max(22px,env(safe-area-inset-right,0px)) calc(22px + env(safe-area-inset-bottom,0px)) max(22px,env(safe-area-inset-left,0px));
  display:flex;flex-direction:column;gap:16px;animation:up .22s ease-out}
.sheet::before{content:"";width:42px;height:5px;border-radius:99px;background:var(--edge);align-self:center}
@keyframes up{from{transform:translateY(28px);opacity:.5}}
@media (min-width:640px){.sheet-bg{align-items:center}.sheet{border-radius:26px;border-bottom:1px solid transparent}.sheet::before{display:none}}
@media (prefers-reduced-motion:reduce){.sheet{animation:none}}
.sheet-head{display:flex;justify-content:space-between;align-items:flex-start;gap:12px}
.sheet-head h3{margin:0;font-family:var(--ff-display);font-size:22px;letter-spacing:-.015em;line-height:1.2}
.x{background:var(--glass2);color:var(--ink);box-shadow:none;width:38px;height:38px;padding:0;border-radius:50%;font-size:20px;line-height:1;flex:none}
.x:hover{box-shadow:none}
.summary{display:flex;justify-content:space-between;align-items:baseline;padding:14px 16px;border-radius:16px;background:var(--glass);border:1px solid var(--edge);color:var(--muted)}
.summary b{font-family:var(--ff-display);font-size:28px;font-weight:800;color:var(--ink)}
label.check{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--muted)}
label.check b{color:var(--ink)}
label.check input{margin-top:3px;accent-color:var(--violet);width:18px;height:18px;flex:none}
.sheet #pay{padding:15px 18px;font-size:17px}

/* Trang kết quả thanh toán */
.card{border-radius:24px;padding:26px;display:flex;flex-direction:column;gap:14px;border:1px solid transparent;
  background:linear-gradient(var(--bg2),var(--bg2)) padding-box,var(--grad) border-box;box-shadow:0 24px 70px -30px rgba(123,92,255,.9)}
.card h1{font-family:var(--ff-display);font-weight:800;font-size:32px;letter-spacing:-.03em;line-height:1.1;margin:0}
.card p{margin:0}
.done{background:var(--glass);border:1px solid var(--edge);border-radius:16px;padding:16px;display:flex;flex-direction:column;gap:8px}
.code{font-family:var(--ff-display);font-weight:800;font-size:28px;letter-spacing:.02em;border:1px dashed rgba(46,230,255,.5);border-radius:12px;padding:10px 14px;
  color:var(--cyan);background:rgba(46,230,255,.06);overflow-wrap:anywhere;user-select:all;font-variant-numeric:tabular-nums}
.dot{width:10px;height:10px;border-radius:50%;background:var(--cyan);box-shadow:0 0 12px var(--cyan);display:inline-block;animation:pulse 1.2s infinite;vertical-align:middle}
@keyframes pulse{50%{opacity:.3}}
@media (prefers-reduced-motion:reduce){.dot{animation:none}}