:root{--nen:#f7f6f2;--nen2:#efece4;--the:#fff;--chu:#17151f;--mo:#625f6b;--vien:#e6e2d8;
--chinh:#4338ca;--chinh-dam:#3730a3;--chinh-nhat:#eef0ff;--nhan:#f59e0b;--xanh:#0f766e;--loi:#b3261e;--canh:#9a6700;
--bo:18px;--bong:0 1px 2px rgba(23,21,31,.05),0 8px 24px -12px rgba(23,21,31,.18);
font-family:"Be Vietnam Pro",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;color:var(--chu);background:var(--nen);line-height:1.6;
-webkit-font-smoothing:antialiased}
@media (prefers-color-scheme:dark){:root{--nen:#111018;--nen2:#1a1924;--the:#1c1b26;--chu:#eeecf5;--mo:#a19eae;--vien:#2e2c3b;
--chinh:#8b8cf8;--chinh-dam:#a5a6fb;--chinh-nhat:#25244a;--xanh:#5eead4;--bong:0 1px 2px rgba(0,0,0,.3),0 10px 30px -12px rgba(0,0,0,.6)}}
*{box-sizing:border-box}body{margin:0;background:var(--nen)}
a{color:var(--chinh)}img,svg{display:block}
svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;flex:none}
.khung{max-width:1120px;margin:0 auto;padding:0 20px}

/* Đầu trang */
.dau{position:sticky;top:0;z-index:5;background:color-mix(in srgb,var(--nen) 88%,transparent);backdrop-filter:blur(10px);
border-bottom:1px solid var(--vien)}
.dau .khung{display:flex;align-items:center;justify-content:space-between;gap:12px;height:64px}
.logo{display:flex;align-items:center;gap:10px;color:var(--chu);text-decoration:none;font-weight:800;font-size:1.05rem;letter-spacing:-.01em}
.logo i{display:grid;place-items:center;width:34px;height:34px;border-radius:10px;font-style:normal;font-weight:800;color:#fff;
background:linear-gradient(135deg,#6366f1,#4338ca 55%,#f59e0b)}
.menu{display:flex;align-items:center;gap:6px}
.menu a{color:var(--mo);text-decoration:none;font-weight:600;font-size:.92rem;padding:8px 12px;border-radius:10px}
.menu a:hover{color:var(--chu);background:var(--nen2)}
.menu a.nut{color:#fff}
@media(max-width:560px){.menu .an-dt,.menu .chu-dai{display:none}}

/* Nút */
.nut{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--chinh);color:#fff;border:0;border-radius:12px;
padding:13px 22px;font:inherit;font-weight:700;text-decoration:none;cursor:pointer;transition:transform .15s,background .15s,box-shadow .15s;
box-shadow:0 6px 18px -8px var(--chinh)}
.nut:hover{background:var(--chinh-dam);transform:translateY(-1px)}
.nut.nho-nut{padding:8px 14px;border-radius:10px;font-size:.9rem;box-shadow:none}
.nut.phu{background:transparent;color:var(--chu);border:1px solid var(--vien);box-shadow:none}.nut.phu:hover{background:var(--nen2)}
.nut.lon-nut{padding:16px 24px;font-size:1.05rem}

/* Hero trang chủ */
.hero{position:relative;overflow:hidden;padding:72px 0 56px}
.hero:before,.hero:after{content:"";position:absolute;border-radius:50%;filter:blur(60px);opacity:.55;z-index:-1}
.hero:before{width:520px;height:520px;background:#c7d2fe;top:-220px;right:-120px}
.hero:after{width:420px;height:420px;background:#fde68a;bottom:-260px;left:-140px}
@media (prefers-color-scheme:dark){.hero:before{background:#3730a3}.hero:after{background:#78350f}}
.nhan-nho{display:inline-flex;align-items:center;gap:8px;padding:6px 12px;border-radius:99px;background:var(--the);border:1px solid var(--vien);
font-size:.82rem;font-weight:700;color:var(--chinh);box-shadow:var(--bong)}
.nhan-nho b{width:8px;height:8px;border-radius:50%;background:#22c55e;box-shadow:0 0 0 4px rgba(34,197,94,.2)}
.hero h1{font-size:clamp(2rem,5vw,3.4rem);line-height:1.1;letter-spacing:-.03em;margin:18px 0 16px;max-width:780px}
.hero h1 em{font-style:normal;background:linear-gradient(90deg,#4f46e5,#9333ea 50%,#f59e0b);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p.dan{font-size:1.12rem;color:var(--mo);max-width:640px;margin:0 0 28px}
.hang{display:flex;gap:12px;flex-wrap:wrap;align-items:center}
.cam-ket{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px;margin-top:40px}
.cam-ket div{display:flex;gap:12px;align-items:center;background:var(--the);border:1px solid var(--vien);border-radius:14px;padding:14px 16px;
font-weight:600;font-size:.92rem}
.cam-ket svg{color:var(--chinh);width:22px;height:22px}

/* Tiêu đề phần */
.phan{padding:40px 0}
.phan-dau{display:flex;justify-content:space-between;align-items:end;gap:16px;margin-bottom:22px}
.phan-dau h2{font-size:1.6rem;letter-spacing:-.02em;margin:0}
h1,h2,h3{letter-spacing:-.015em}h2{font-size:1.2rem;margin:0 0 10px}h3{font-size:1.02rem;margin:0 0 6px}
p{margin:0 0 12px}.mo{color:var(--mo)}.nho{font-size:.875rem}

/* Lưới sản phẩm */
.luoi-sp{display:grid;gap:22px;grid-template-columns:repeat(auto-fill,minmax(250px,1fr))}
.the-sp{display:flex;flex-direction:column;background:var(--the);border:1px solid var(--vien);border-radius:var(--bo);overflow:hidden;
text-decoration:none;color:inherit;box-shadow:var(--bong);transition:transform .2s,box-shadow .2s,border-color .2s}
.the-sp:hover{transform:translateY(-4px);border-color:color-mix(in srgb,var(--chinh) 40%,var(--vien));
box-shadow:0 2px 4px rgba(23,21,31,.06),0 22px 40px -18px rgba(67,56,202,.45)}
.the-sp .than{padding:18px 18px 16px;display:flex;flex-direction:column;flex:1}
.the-sp h3{font-size:1.05rem;line-height:1.35}
.the-sp p{font-size:.9rem;color:var(--mo);flex:1}
.chan-the{display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap;margin-top:8px;padding-top:14px;border-top:1px dashed var(--vien)}
.gia{font-size:1.3rem;font-weight:800;color:var(--chu);letter-spacing:-.01em}
.xem{display:inline-flex;align-items:center;gap:6px;white-space:nowrap;font-weight:700;font-size:.9rem;color:var(--chinh)}
.the-sp:hover .xem{gap:10px}

/* Bìa tự sinh */
.bia{position:relative;aspect-ratio:16/10;display:flex;flex-direction:column;justify-content:flex-end;padding:48px 24px 22px;color:#fff;overflow:hidden}
.bia:after{content:"";position:absolute;right:-40px;bottom:-60px;width:200px;height:200px;border-radius:50%;background:rgba(255,255,255,.14)}
.bia:before{content:"";position:absolute;right:40px;top:-50px;width:120px;height:120px;border-radius:50%;background:rgba(255,255,255,.08)}
.bia-nhan{position:absolute;top:14px;left:16px;font-size:.72rem;font-weight:800;letter-spacing:.06em;text-transform:uppercase;
background:rgba(255,255,255,.2);padding:4px 10px;border-radius:99px;backdrop-filter:blur(4px)}
.bia-so{font-size:3.4rem;font-weight:800;line-height:1;letter-spacing:-.04em;position:relative}
.bia-chu{font-size:.85rem;font-weight:800;letter-spacing:.22em;opacity:.9;position:relative;margin-top:4px}
.bia.lon{aspect-ratio:auto;min-height:220px;border-radius:var(--bo);margin-bottom:22px}.bia.lon .bia-so{font-size:4.6rem}
.bia.m0{background:linear-gradient(135deg,#4f46e5,#7c3aed)}
.bia.m1{background:linear-gradient(135deg,#0d9488,#0e7490)}
.bia.m2{background:linear-gradient(135deg,#ea580c,#db2777)}
.bia.m3{background:linear-gradient(135deg,#1d4ed8,#0891b2)}
.bia.m4{background:linear-gradient(135deg,#7c2d12,#d97706)}
.bia.m5{background:linear-gradient(135deg,#be185d,#6d28d9)}

/* Các bước mua */
.buoc{display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));counter-reset:b}
.buoc div{background:var(--the);border:1px solid var(--vien);border-radius:var(--bo);padding:22px;position:relative}
.buoc div:before{counter-increment:b;content:counter(b);display:grid;place-items:center;width:34px;height:34px;border-radius:10px;
background:var(--chinh-nhat);color:var(--chinh);font-weight:800;margin-bottom:12px}
.buoc p{color:var(--mo);font-size:.92rem;margin:0}

/* Thẻ chung */
.the{background:var(--the);border:1px solid var(--vien);border-radius:var(--bo);padding:24px;margin-bottom:18px;box-shadow:var(--bong)}
.vung{padding-top:36px;padding-bottom:56px}.vung.hep{max-width:720px;margin:0 auto}

/* Trang sản phẩm */
.duong-dan{font-size:.88rem;color:var(--mo);margin-bottom:18px}.duong-dan a{color:var(--mo);text-decoration:none}.duong-dan a:hover{color:var(--chinh)}
.sp-luoi{display:grid;gap:28px}@media(min-width:900px){.sp-luoi{grid-template-columns:minmax(0,1fr) 380px;align-items:start}}
.sp-luoi h1{font-size:clamp(1.6rem,3.4vw,2.2rem);line-height:1.2;margin:0 0 10px}
.danh-cho{display:inline-flex;gap:8px;align-items:center;background:var(--chinh-nhat);color:var(--chinh);padding:6px 12px;border-radius:10px;
font-size:.88rem;font-weight:600;margin-bottom:16px}
.giu-dong{white-space:pre-line}
.hop-mua{position:sticky;top:84px;border-width:2px;border-color:color-mix(in srgb,var(--chinh) 30%,var(--vien))}
.hop-mua .gia{font-size:2rem}
.loi-ich{list-style:none;padding:0;margin:14px 0 18px;display:grid;gap:8px}
.loi-ich li{display:flex;gap:10px;align-items:center;font-size:.92rem}
.loi-ich svg{color:var(--xanh);width:18px;height:18px}
label{display:block;font-weight:700;margin:0 0 6px;font-size:.92rem}
input[type=email]{width:100%;padding:13px 14px;border:1.5px solid var(--vien);border-radius:12px;font:inherit;background:var(--nen);color:var(--chu);
transition:border-color .15s,box-shadow .15s}
input[type=email]:focus{outline:0;border-color:var(--chinh);box-shadow:0 0 0 4px var(--chinh-nhat)}
.hop{display:flex;gap:10px;align-items:flex-start;font-weight:400;font-size:.85rem;color:var(--mo)}.hop input{margin-top:4px;accent-color:var(--chinh)}
.an{position:absolute;left:-9999px}
.loi{color:var(--loi);font-weight:600}.canh{color:var(--canh)}
ul.file{list-style:none;padding:0;margin:0}
ul.file li{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:12px 0;border-top:1px solid var(--vien)}
ul.file li:first-child{border-top:0}
ul.file .ten-file{display:flex;gap:10px;align-items:center;min-width:0;word-break:break-word}
ul.file .ten-file svg{color:var(--chinh)}
.nho-bao{display:flex;gap:8px;align-items:center;justify-content:center;font-size:.8rem;color:var(--mo);margin-top:12px}
.nho-bao svg{width:16px;height:16px}

/* Đơn hàng */
.nhan{display:inline-block;padding:4px 12px;border-radius:99px;font-size:.8rem;font-weight:700;background:var(--nen2)}
.nhan.ok{background:#d1fae5;color:#065f46}.nhan.cho{background:#fef3c7;color:#92400e}
.tien-trinh{display:flex;gap:6px;margin:6px 0 22px}
.tien-trinh span{flex:1;font-size:.78rem;font-weight:700;color:var(--mo);padding-top:10px;border-top:4px solid var(--vien)}
.tien-trinh span.xong{color:var(--chinh);border-color:var(--chinh)}
.tien-trinh span.dang{color:var(--chu);border-color:var(--nhan)}
.hai-dau{justify-content:space-between}.sat{margin:0}

/* Chân trang */
.chan{margin-top:40px;background:#17151f;color:#c9c6d4}
.chan .khung{display:grid;gap:24px;padding-top:40px;padding-bottom:28px}
@media(min-width:760px){.chan .khung{grid-template-columns:1.4fr 1fr 1fr}}
.chan .logo{color:#fff}.chan h3{color:#fff;font-size:.95rem;margin-bottom:10px}
.chan a{color:#c9c6d4;text-decoration:none}.chan a:hover{color:#fff}
.chan p{font-size:.9rem;margin:0 0 8px}
.chan .ban-quyen{grid-column:1/-1;border-top:1px solid #2e2c3b;padding-top:18px;font-size:.8rem;color:#8a8796}

.cach-tren{margin-top:18px}.cach-tren-nho{margin-top:8px}.cach-duoi{margin-bottom:12px}.rong{width:100%}
.gia-lap{border:2px dashed var(--canh)}
pre{white-space:pre-wrap;word-break:break-word;font-size:.85rem;background:var(--nen);padding:12px;border-radius:10px}
.trong{text-align:center;padding:48px 24px}
@media(max-width:560px){.hero{padding:48px 0 36px}.the{padding:18px}.phan{padding:28px 0}}