/* MuaHosting · một tệp, không phông ngoài (TK-00 §10). Nền trung tính · chữ mực · nhấn tím Hostinger chỉ cho nút chính. */
:root{--nen:#fbfaf8;--muc:#14112a;--chu:#2a2740;--mo:#5f5b76;--vien:#e8e5ef;--the:#fff;--tim:#673de6;--tim2:#5025d1;--tim-nhat:#f1ecff;--vang:#ffd34d;--xanh:#0e7a4f;--r:16px;--bong:0 1px 2px rgba(20,17,42,.05),0 8px 24px -12px rgba(20,17,42,.18)}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:76px}
body{margin:0;background:var(--nen);color:var(--chu);font:17px/1.62 ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;-webkit-font-smoothing:antialiased;padding-bottom:76px}
a{color:var(--tim2);text-underline-offset:3px;text-decoration-thickness:1px}
h1,h2,h3{color:var(--muc);letter-spacing:-.02em;line-height:1.18}
img,svg{display:block;max-width:100%}
.khung{max-width:1120px;margin:0 auto;padding:0 20px}
.hep{max-width:780px}
.bo-qua{position:absolute;left:-999px}.bo-qua:focus{left:12px;top:12px;z-index:99;background:#fff;padding:8px 12px;border-radius:8px}

/* đầu trang */
.dau{position:sticky;top:0;z-index:20;background:rgba(14,11,31,.86);backdrop-filter:saturate(1.6) blur(14px);-webkit-backdrop-filter:saturate(1.6) blur(14px);border-bottom:1px solid rgba(255,255,255,.07)}
.dau .khung{display:flex;align-items:center;gap:14px;height:60px}
.logo{display:flex;align-items:center;gap:9px;color:#fff;text-decoration:none;font-weight:650;font-size:18px;letter-spacing:-.02em;margin-right:auto}
.logo svg{width:30px;height:30px}.logo b{font-weight:800;color:#c9b8ff}
.menu{display:none;gap:4px}
.menu a{color:#d9d4ee;text-decoration:none;font-size:15px;padding:8px 11px;border-radius:9px}
.menu a:hover,.menu a[aria-current]{color:#fff;background:rgba(255,255,255,.08)}
.ng{color:#d9d4ee;font-size:14px;text-decoration:none;padding:6px 10px;border:1px solid rgba(255,255,255,.18);border-radius:999px;white-space:nowrap}
.ng:hover{color:#fff;border-color:rgba(255,255,255,.4)}
.dau-nut{display:none!important}
@media(min-width:880px){.menu{display:flex}.dau-nut{display:inline-flex!important;min-height:40px!important;padding:0 16px!important;font-size:15px!important}}

/* nút */
.nut{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:52px;padding:0 24px;border-radius:12px;background:var(--tim);color:#fff;font-weight:700;font-size:17px;text-decoration:none;letter-spacing:-.01em;box-shadow:0 6px 20px -8px rgba(103,61,230,.75),inset 0 1px 0 rgba(255,255,255,.18);transition:transform .18s ease-out,background .18s ease-out}
.nut:hover{background:var(--tim2);transform:translateY(-1px)}
.nut{text-align:center;line-height:1.25}.nut svg{width:18px;height:18px;flex:none}
.nut.nho{min-height:46px;width:100%;font-size:16px;background:var(--muc);box-shadow:none}
.nut.nho.chinh{background:var(--tim);box-shadow:0 6px 20px -8px rgba(103,61,230,.75)}
.chu-link{font-weight:600;text-decoration:none}

/* hero */
.hero{position:relative;overflow:hidden;background:radial-gradient(900px 420px at 85% -10%,rgba(124,82,255,.45),transparent 60%),radial-gradient(700px 380px at -10% 110%,rgba(255,211,77,.12),transparent 60%),#0e0b1f;color:#d9d4ee;padding:28px 0 40px}
.hero h1{color:#fff;font-size:clamp(30px,7.4vw,50px);margin:10px 0 14px;font-weight:800}
.hero .sub{font-size:clamp(17px,4.4vw,20px);color:#cfc9e6;margin:0 0 24px;max-width:640px}
.hero .sub a{color:#c9b8ff}
.hero .chu-link{color:#c9b8ff}
.kicker{display:inline-block;margin:0;font-size:13px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--vang)}
.hang-nut{display:flex;flex-wrap:wrap;align-items:center;gap:14px 20px}
.hang-nut .nut{width:100%}
@media(min-width:560px){.hang-nut .nut{width:auto}}
.tin{display:flex;flex-wrap:wrap;gap:8px 18px;list-style:none;padding:0;margin:22px 0 0;font-size:14px;color:#bdb6da}
.tin li:before{content:"✓";color:#7ee2b0;font-weight:800;margin-right:6px}
.bc{font-size:13.5px;color:#a79fca;margin-bottom:6px}.bc a{color:#c9b8ff;text-decoration:none}
.hero.chu{padding:40px 0 56px}

/* bài */
.bai{padding-top:22px;padding-bottom:30px}
.meta{font-size:13.5px;color:var(--mo);margin:0 0 22px}
.meta span{display:block;margin-top:2px}
.bai h2{font-size:clamp(24px,5.6vw,30px);margin:48px 0 14px}
.bai h3{font-size:20px}
.bai p,.bai li{max-width:68ch}
.bai ul,.bai ol{padding-left:22px}.bai li{margin:6px 0}
.tl{background:var(--the);border:1px solid var(--vien);border-left:4px solid var(--tim);border-radius:var(--r);padding:16px 18px;box-shadow:var(--bong);margin:0 0 22px}
.tl>b{display:block;font-size:13px;letter-spacing:.06em;text-transform:uppercase;color:var(--tim2);margin-bottom:4px}.tl p{margin:0}
.muc{background:var(--tim-nhat);border-radius:var(--r);padding:14px 18px;font-size:15.5px}
.muc b{font-size:13px;letter-spacing:.06em;text-transform:uppercase;color:var(--mo)}
.muc ol{margin:6px 0 0;padding-left:20px}.muc a{text-decoration:none}
.chu-nho{font-size:13.5px;color:var(--mo)}
code{background:var(--tim-nhat);padding:1px 6px;border-radius:6px;font-size:.9em}

/* thẻ gói */
.goi{display:grid;gap:14px;margin:18px 0 8px}
@media(min-width:720px){.goi{grid-template-columns:repeat(2,1fr)}}
.the{position:relative;background:var(--the);border:1px solid var(--vien);border-radius:20px;padding:22px 20px 18px;box-shadow:var(--bong);display:flex;flex-direction:column}
.the.noi{border:2px solid var(--tim);box-shadow:0 18px 40px -20px rgba(103,61,230,.55)}
.the .nhan{position:absolute;top:-12px;left:20px;background:var(--tim);color:#fff;font-size:12px;font-weight:800;letter-spacing:.04em;text-transform:uppercase;padding:4px 10px;border-radius:999px}
.the h3{margin:0;font-size:21px}
.the .hop{margin:4px 0 12px;color:var(--mo);font-size:15px;min-height:2.6em}
.the .gia{margin:0;display:flex;align-items:baseline;gap:4px}
.the .gia b{font-size:38px;line-height:1;color:var(--muc);letter-spacing:-.03em}
.the .gia span{color:var(--mo);font-weight:600}
.the .phu{margin:6px 0 12px;font-size:13.5px;color:var(--mo)}
.the .phu s{opacity:.8}
.the ul{list-style:none;padding:0;margin:0 0 16px;font-size:15px}
.the ul li{padding-left:24px;position:relative;margin:7px 0}
.the ul li:before{content:"";position:absolute;left:0;top:.42em;width:15px;height:15px;border-radius:50%;background:#e4f6ec url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M4 8.4l2.6 2.4L12 5.4' fill='none' stroke='%230e7a4f' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/11px no-repeat}
.the .nut{margin-top:auto}
.the .gh{margin:10px 0 0;font-size:13px;color:var(--mo);text-align:center}

/* bảng */
.bang{overflow-x:auto;margin:16px 0;border:1px solid var(--vien);border-radius:14px;background:var(--the);-webkit-overflow-scrolling:touch}
table{border-collapse:collapse;width:100%;font-size:15px;min-width:520px}
th,td{padding:11px 14px;text-align:left;border-bottom:1px solid var(--vien);vertical-align:top}
th{background:#f6f4fb;font-size:13px;letter-spacing:.02em;color:var(--mo);font-weight:700;white-space:nowrap}
tr:last-child td{border-bottom:0}
tr.ta td{background:#faf8ff}tr.ta td:first-child{font-weight:700;color:var(--tim2)}

/* khác */
.chon{list-style:none;padding:0!important}
.chon li{background:var(--the);border:1px solid var(--vien);border-radius:14px;padding:13px 16px;margin:10px 0}
.diem{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin:14px 0}
@media(min-width:600px){.diem{grid-template-columns:repeat(4,1fr)}}
.diem div{background:var(--the);border:1px solid var(--vien);border-radius:14px;padding:14px;text-align:center}
.diem b{display:block;font-size:30px;color:var(--tim2);letter-spacing:-.03em}.diem span{font-size:14px;color:var(--mo)}
.dc{list-style:none;padding:0!important;display:grid;gap:10px}
.dc li{background:var(--the);border:1px solid var(--vien);border-radius:14px;padding:12px 16px;display:flex;flex-direction:column}
.dc b{color:var(--muc)}.dc span{color:var(--mo);font-size:15.5px}
.buoc{counter-reset:b;list-style:none;padding:0!important}
.buoc li{counter-increment:b;position:relative;padding:4px 0 10px 46px}
.buoc li:before{content:counter(b);position:absolute;left:0;top:2px;width:32px;height:32px;border-radius:50%;background:var(--tim-nhat);color:var(--tim2);font-weight:800;display:grid;place-items:center;font-size:15px}
.hop-cta{margin:32px 0;padding:24px 20px;border-radius:20px;text-align:center;background:radial-gradient(500px 200px at 50% -40%,rgba(124,82,255,.5),transparent 70%),#0e0b1f;color:#d9d4ee}
.hop-cta p{margin:0 auto 14px;font-size:18px;color:#fff;font-weight:650;max-width:44ch}
.hop-cta .nut{width:100%;max-width:380px}
.hop-cta small{display:block;margin-top:12px;font-size:13px;color:#bdb6da}
.tinh{background:var(--the);border:1px solid var(--vien);border-radius:20px;padding:20px;box-shadow:var(--bong);display:grid;gap:14px;margin:16px 0}
.tinh label{display:grid;gap:6px;font-weight:650;font-size:15px;color:var(--muc)}
.tinh select{font:inherit;padding:12px;border:1px solid var(--vien);border-radius:12px;background:#fff;min-height:48px}
.tinh input[type=range]{width:100%;accent-color:var(--tim);min-height:32px}
.tinh output{font-weight:800;color:var(--tim2)}
.tinh .kq{margin:0;background:var(--tim-nhat);border-radius:14px;padding:14px 16px;display:grid}
.tinh .kq span{font-size:13px;color:var(--mo);text-transform:uppercase;letter-spacing:.05em}
.tinh .kq b{font-size:34px;color:var(--muc);letter-spacing:-.03em}
.tinh .kq small{color:var(--mo)}
.faq details{background:var(--the);border:1px solid var(--vien);border-radius:14px;margin:10px 0;padding:0 16px}
.faq summary{cursor:pointer;font-weight:650;color:var(--muc);padding:15px 26px 15px 0;list-style:none;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary:after{content:"+";position:absolute;right:0;top:12px;font-size:22px;color:var(--tim)}
.faq details[open] summary:after{content:"–"}
.faq details div{padding:0 0 14px;color:var(--chu)}
.lien h2{margin-top:44px}
.the-lien{display:grid;gap:10px}
@media(min-width:640px){.the-lien{grid-template-columns:repeat(2,1fr)}}
.the-lien a{display:block;text-decoration:none;background:var(--the);border:1px solid var(--vien);border-radius:14px;padding:14px 16px;transition:border-color .18s ease-out,transform .18s ease-out}
.the-lien a:hover{border-color:var(--tim);transform:translateY(-1px)}
.the-lien b{display:block;color:var(--muc);font-size:16px;line-height:1.3}.the-lien span{display:block;color:var(--mo);font-size:14px;margin-top:4px}
tomi-mart{display:block;margin:34px 0 0}

/* chân trang */
.chan{background:#0e0b1f;color:#a79fca;padding:40px 0 30px;font-size:14.5px;margin-top:20px}
.chan .cot{display:grid;grid-template-columns:repeat(2,1fr);gap:22px 18px}
@media(min-width:880px){.chan .cot{grid-template-columns:repeat(6,1fr)}}
.chan .cot b{display:block;color:#fff;margin-bottom:8px;font-size:14px}
.chan .cot a{display:block;color:#bdb6da;text-decoration:none;padding:4px 0;line-height:1.35}
.chan .cot a:hover{color:#fff}
.chan .disc{margin:30px 0 10px;max-width:90ch;font-size:13.5px}
.chan .cuoi{font-size:13.5px}.chan .cuoi a{color:#c9b8ff}

/* thanh đáy (điện thoại) */
.day{position:fixed;left:0;right:0;bottom:0;z-index:30;display:flex;align-items:center;gap:12px;justify-content:space-between;padding:10px 14px calc(10px + env(safe-area-inset-bottom));background:rgba(255,255,255,.94);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-top:1px solid var(--vien);transform:translateY(110%);transition:transform .22s ease-out}
.day.hien{transform:none}
.day span{font-size:14px;color:var(--mo);line-height:1.2}.day b{color:var(--muc);font-size:17px}
.day .nut{min-height:46px;padding:0 16px;font-size:16px;white-space:nowrap;flex:none}
@media(min-width:880px){.day{display:none}body{padding-bottom:0}}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}