/* KEEP.COM.VN — hệ thiết kế "tờ lịch bóc". Đỏ cà chua chỉ cho nút chính và số ngày; xanh công viên cho tiến độ. */
@font-face{font-family:"Barlow Condensed";font-style:normal;font-weight:800;font-display:swap;src:url(/assets/f/barlow-condensed-vietnamese-800-normal.woff2) format("woff2");unicode-range:U+0102-0103,U+0110-0111,U+0128-0129,U+0168-0169,U+01A0-01A1,U+01AF-01B0,U+0300-0301,U+0303-0304,U+0308-0309,U+0323,U+0329,U+1EA0-1EF9,U+20AB}
@font-face{font-family:"Barlow Condensed";font-style:normal;font-weight:800;font-display:swap;src:url(/assets/f/barlow-condensed-latin-800-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"Barlow Condensed";font-style:normal;font-weight:700;font-display:swap;src:url(/assets/f/barlow-condensed-vietnamese-700-normal.woff2) format("woff2");unicode-range:U+0102-0103,U+0110-0111,U+0128-0129,U+0168-0169,U+01A0-01A1,U+01AF-01B0,U+0300-0301,U+0303-0304,U+0308-0309,U+0323,U+0329,U+1EA0-1EF9,U+20AB}
@font-face{font-family:"Barlow Condensed";font-style:normal;font-weight:700;font-display:swap;src:url(/assets/f/barlow-condensed-latin-700-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"Be Vietnam Pro";font-style:normal;font-weight:400;font-display:swap;src:url(/assets/f/be-vietnam-pro-vietnamese-400-normal.woff2) format("woff2");unicode-range:U+0102-0103,U+0110-0111,U+0128-0129,U+0168-0169,U+01A0-01A1,U+01AF-01B0,U+0300-0301,U+0303-0304,U+0308-0309,U+0323,U+0329,U+1EA0-1EF9,U+20AB}
@font-face{font-family:"Be Vietnam Pro";font-style:normal;font-weight:400;font-display:swap;src:url(/assets/f/be-vietnam-pro-latin-400-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"Be Vietnam Pro";font-style:normal;font-weight:500;font-display:swap;src:url(/assets/f/be-vietnam-pro-vietnamese-500-normal.woff2) format("woff2");unicode-range:U+0102-0103,U+0110-0111,U+0128-0129,U+0168-0169,U+01A0-01A1,U+01AF-01B0,U+0300-0301,U+0303-0304,U+0308-0309,U+0323,U+0329,U+1EA0-1EF9,U+20AB}
@font-face{font-family:"Be Vietnam Pro";font-style:normal;font-weight:500;font-display:swap;src:url(/assets/f/be-vietnam-pro-latin-500-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"Be Vietnam Pro";font-style:normal;font-weight:700;font-display:swap;src:url(/assets/f/be-vietnam-pro-vietnamese-700-normal.woff2) format("woff2");unicode-range:U+0102-0103,U+0110-0111,U+0128-0129,U+0168-0169,U+01A0-01A1,U+01AF-01B0,U+0300-0301,U+0303-0304,U+0308-0309,U+0323,U+0329,U+1EA0-1EF9,U+20AB}
@font-face{font-family:"Be Vietnam Pro";font-style:normal;font-weight:700;font-display:swap;src:url(/assets/f/be-vietnam-pro-latin-700-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}

:root{
  --nen:#EEF3EF; --giay:#FFFFFF; --muc:#16231D; --muc-2:#4A5B52; --muc-3:#7B8B82;
  --xanh:#0B7A55; --xanh-dam:#075C40; --xanh-nhat:#DCEBE3; --do:#E5322D; --do-dam:#C4231F; --vang:#FFC531; --vien:#D3DDD6;
  --so:"Barlow Condensed","Arial Narrow",sans-serif; --chu:"Be Vietnam Pro",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --bo:14px; --bo-lon:22px; --le:16px; --rong:1120px;
}
*,*::before,*::after{box-sizing:border-box}
[hidden]{display:none!important}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--nen);color:var(--muc);font:400 16px/1.6 var(--chu);overflow-x:hidden}
img,svg{max-width:100%}
a{color:var(--xanh-dam);text-underline-offset:3px}
h1,h2,h3{line-height:1.15;margin:0 0 .5em;letter-spacing:-.01em}
h1{font:800 clamp(42px,11.5vw,72px)/.98 var(--so);letter-spacing:-.005em}
h2{font:800 clamp(28px,6vw,38px)/1.05 var(--so)}
h3{font-size:18px;font-weight:700}
p{margin:0 0 1em}
button,input,select,textarea{font:inherit;color:inherit}
input,select,textarea{min-width:0;max-width:100%}
:focus-visible{outline:3px solid var(--vang);outline-offset:2px;border-radius:6px}
.bo-qua{position:absolute;left:-999px;top:8px;background:var(--muc);color:#fff;padding:10px 14px;border-radius:10px;z-index:100}.bo-qua:focus{left:8px}
.ic{width:22px;height:22px;flex:none;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.tb{margin:0;background:var(--muc);color:#fff;text-align:center;font-size:14px;padding:8px 16px}

/* ---------- nút ---------- */
.nut-chinh,.nut-phu,.nut-chu{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:12px 22px;border-radius:var(--bo);font-weight:700;font-size:16px;text-decoration:none;cursor:pointer;border:0;line-height:1.2;transition:transform .15s ease-out,background-color .15s ease-out}
.nut-chinh{background:var(--do);color:#fff;box-shadow:0 2px 0 var(--do-dam)}
.nut-chinh:hover{background:var(--do-dam)}.nut-chinh:active,.nut-phu:active{transform:translateY(1px)}
.nut-phu{background:var(--giay);color:var(--xanh-dam);box-shadow:inset 0 0 0 2px var(--xanh)}
.nut-phu:hover{background:var(--xanh-nhat)}
.nut-chu{background:none;color:var(--muc-2);min-height:40px;padding:8px 10px;text-decoration:underline}
.nut-to{width:100%;min-height:58px;font-size:18px}

/* ---------- đầu trang ---------- */
.dau{position:sticky;top:0;z-index:40;background:rgba(255,255,255,.94);backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid var(--vien)}
.dau-in{max-width:var(--rong);margin:auto;display:flex;align-items:center;gap:10px;padding:8px var(--le);min-height:60px}
.nut-menu{display:inline-flex;align-items:center;gap:6px;background:none;border:0;padding:8px 10px 8px 4px;min-height:44px;cursor:pointer;font-weight:700;font-size:14px;color:var(--muc)}
.nut-menu span{display:none}
.dau-logo{text-decoration:none;color:var(--muc)}
.logo{display:inline-flex;align-items:center;gap:8px}.logo-to{width:30px;height:33px}
.logo b{font:800 30px/1 var(--so);letter-spacing:.01em}
.logo-sang b{color:#fff}
.dau-nav{display:none;gap:4px;margin-left:12px}
.dau-nav a{padding:10px 12px;border-radius:10px;text-decoration:none;color:var(--muc);font-weight:500;font-size:15px}.dau-nav a:hover{background:var(--nen)}
.dau-phai{margin-left:auto;display:flex;align-items:center;gap:8px}
.nut-ngu{display:inline-grid;place-items:center;width:44px;height:44px;border-radius:12px;text-decoration:none;font:800 18px/1 var(--so);color:var(--muc);box-shadow:inset 0 0 0 1.5px var(--vien)}
.dau-tomi{display:none}
.nut-dau-chinh{display:none;min-height:44px;align-items:center;padding:0 16px;border-radius:12px;background:var(--muc);color:#fff;text-decoration:none;font-weight:700;font-size:15px}
@media(min-width:900px){.nut-menu span{display:inline}.dau-nav{display:flex}.dau-tomi{display:inline-block}.nut-dau-chinh{display:inline-flex}}

/* ---------- ngăn MENU ---------- */
.ngan{position:fixed;inset:0;z-index:60}
.ngan-nen{position:absolute;inset:0;background:rgba(10,20,15,.5)}
.ngan-hop{position:absolute;left:0;top:0;bottom:0;width:min(380px,92vw);background:var(--giay);overflow-y:auto;padding:14px 16px calc(24px + env(safe-area-inset-bottom));display:flex;flex-direction:column;gap:12px;animation:ngan-vao .22s ease-out}
@keyframes ngan-vao{from{transform:translateX(-24px);opacity:.4}to{transform:none;opacity:1}}
.ngan-dau{display:flex;align-items:center;justify-content:space-between}
.ngan-dong{width:44px;height:44px;border:0;background:var(--nen);border-radius:12px;cursor:pointer;display:grid;place-items:center}
.ngan-ds{display:flex;flex-direction:column}
.ngan-ds a{display:flex;align-items:center;gap:14px;padding:11px 6px;text-decoration:none;color:var(--muc);border-bottom:1px solid var(--nen)}
.ngan-ds a .ic{color:var(--xanh)}
.ngan-ds span{display:flex;flex-direction:column}.ngan-ds b{font-size:15.5px}.ngan-ds small{color:var(--muc-3);font-size:13px}
.ngan-cai,.ngan-dbw{display:block}
.ngan-ngu,.ngan-luot{display:flex;align-items:center;gap:10px;background:none;border:0;padding:10px 6px;color:var(--muc-2);text-decoration:none;cursor:pointer;font-size:15px}
.luot-hop{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;background:var(--nen);border-radius:var(--bo);padding:12px}
.luot-hop span{display:flex;flex-direction:column;font-size:12px;color:var(--muc-2);text-align:center}.luot-hop b{font:800 26px/1.1 var(--so);color:var(--muc)}
.ngan-tomi{display:flex}

/* ---------- khung chung ---------- */
main{display:block}
.khoi{max-width:var(--rong);margin:0 auto;padding:40px var(--le) 0}
.hep{max-width:760px}
.khoi-dau{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin-bottom:16px}
.khoi-dau h2{margin:0}.khoi-dau a{font-weight:700;white-space:nowrap}
.khoi-ghi{margin:0;color:var(--muc-2);font-size:14px}
.trang-dau{max-width:var(--rong);margin:0 auto;padding:36px var(--le) 4px}
.trang-dau>p{max-width:62ch;color:var(--muc-2);font-size:17px}
.trang-dau.hep{max-width:760px}
.duong{font-size:14px;color:var(--muc-3);margin-bottom:8px}.duong a{color:var(--muc-2)}
.luu-y{background:var(--giay);border-left:4px solid var(--vang);padding:12px 14px;border-radius:10px;font-size:15px;color:var(--muc-2)}
.luu-y-tot{border-left-color:var(--xanh)}
.trong{padding:28px;text-align:center;background:var(--giay);border-radius:var(--bo-lon);color:var(--muc-2)}
.form-ghi,.ghi-nho{font-size:13.5px;color:var(--muc-3);margin:10px 0 0}
@media(min-width:900px){.khoi{padding-top:64px}}

/* ---------- chip + ô số ---------- */
.chon{border:0;padding:0;margin:0 0 14px}
.chon legend{font-size:14px;font-weight:700;margin-bottom:8px;color:var(--muc-2)}
.chip-hang{display:flex;flex-wrap:wrap;gap:8px}
.chip{position:relative;display:inline-flex}
.chip input{position:absolute;opacity:0;inset:0;cursor:pointer}
.chip span{display:inline-flex;align-items:center;min-height:44px;padding:8px 16px;border-radius:999px;background:var(--giay);box-shadow:inset 0 0 0 1.5px var(--vien);font-weight:500;font-size:15px;cursor:pointer;transition:background-color .15s,box-shadow .15s}
.chip input:checked+span{background:var(--muc);color:#fff;box-shadow:none}
.chip input:focus-visible+span{outline:3px solid var(--vang);outline-offset:2px}
.chip-nut{display:inline-flex;align-items:center;gap:6px;min-height:42px;padding:8px 15px;border-radius:999px;background:var(--giay);border:0;box-shadow:inset 0 0 0 1.5px var(--vien);font-weight:500;font-size:14.5px;cursor:pointer;text-decoration:none;color:var(--muc)}
.chip-nut small{color:var(--muc-3);font-size:12px}
.chip-nut.dang{background:var(--muc);color:#fff;box-shadow:none}.chip-nut.dang small{color:#c8d4cd}
.form-hang{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin-bottom:16px}
.form-hang .chon{grid-column:1/-1;margin:0}
.o-so{display:flex;flex-direction:column;gap:6px;font-size:14px;font-weight:700;color:var(--muc-2)}.o-so small{font-weight:500;color:var(--muc-3)}
.o-so-in{display:flex;align-items:center;background:var(--giay);border-radius:var(--bo);box-shadow:inset 0 0 0 1.5px var(--vien);overflow:hidden}
.o-so-in input{width:100%;min-width:0;border:0;background:none;text-align:center;font:800 24px/1 var(--so);color:var(--muc);padding:8px 0;-moz-appearance:textfield}
.o-so-in input::-webkit-outer-spin-button,.o-so-in input::-webkit-inner-spin-button{-webkit-appearance:none}
.o-so-in i{display:none}
.o-so-in button{width:34px;flex:none;height:50px;border:0;background:none;font-size:22px;color:var(--xanh);cursor:pointer}
.o-so-in button:hover{background:var(--nen)}
@media(max-width:559px){.chon-muc .chip-hang{flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none;margin:0 -18px;padding:2px 18px 4px;scroll-snap-type:x proximity}.chon-muc .chip-hang::-webkit-scrollbar{display:none}.chon-muc .chip{flex:none;scroll-snap-align:start}.chon-gt{display:flex;align-items:center;gap:12px}.chon-gt legend{float:left;margin:0}}
@media(min-width:560px){.form-hang{grid-template-columns:auto 1fr 1fr 1fr;gap:12px}.form-hang .chon{grid-column:auto}.o-so-in button{width:40px}}

/* ---------- hero ---------- */
.hero{padding:20px var(--le) 8px}
.hero-in{max-width:var(--rong);margin:auto;display:grid;gap:28px}
.hero-in>*,.lich-dau-in>*,.goi-trang-in>*,.bt-trang-in>*,.form-lich,.chon{min-width:0}
.hero h1{margin-bottom:.3em}
.hero-phu{font-size:16.5px;color:var(--muc-2);max-width:52ch}
@media(min-width:960px){.hero h1{max-width:12ch}.hero-phu{font-size:18px}}
.form-hero{background:var(--giay);border-radius:var(--bo-lon);padding:16px 18px;box-shadow:0 1px 0 var(--vien),0 18px 40px -26px rgba(22,35,29,.35)}
.hero-bang{display:flex;align-items:center;gap:8px;font-size:14.5px;color:var(--muc-2);margin-top:14px}
.hero-bang .ic{color:var(--do)}.hero-bang b{font:800 22px/1 var(--so);color:var(--muc)}
.hero-to{display:flex;justify-content:center;align-items:flex-start}
@media(min-width:960px){.hero{padding-top:52px}.hero-in{grid-template-columns:1.15fr .85fr;align-items:start;gap:56px}.hero-to{padding-top:24px;position:sticky;top:90px}}

/* ---------- TỜ LỊCH BÓC (điểm nhấn) ---------- */
.to-lich{position:relative;width:min(100%,380px);filter:drop-shadow(0 22px 28px rgba(22,35,29,.18))}
.to-gay{height:30px;background:var(--xanh);border-radius:16px 16px 0 0;position:relative}
.to-gay i{position:absolute;top:-9px;width:16px;height:26px;border-radius:9px;background:var(--muc);box-shadow:inset 0 -6px 0 #2f4238}
.to-gay i:first-child{left:26%}.to-gay i:last-child{right:26%}
.to-than{position:relative;z-index:2;background:var(--giay);padding:16px 20px 20px;border-radius:0 0 4px 4px;background-image:linear-gradient(var(--giay),var(--giay)),repeating-linear-gradient(90deg,var(--vien) 0 6px,transparent 6px 12px);background-size:100% calc(100% - 2px),100% 2px;background-position:top,bottom;background-repeat:no-repeat}
.to-tren{display:flex;justify-content:space-between;font-size:13px;font-weight:700;color:var(--muc-2);margin:0;letter-spacing:.02em}
.to-so{display:flex;align-items:baseline;justify-content:center;gap:6px;margin:0;color:var(--do);font-family:var(--so)}
.to-so b{font-size:clamp(128px,34vw,168px);line-height:.92;font-weight:800;letter-spacing:-.03em}
.to-so small{font:700 20px/1 var(--so);color:var(--muc-3)}
.to-loai{text-align:center;font-weight:700;font-size:15px;margin:0 0 12px;padding-bottom:12px;border-bottom:1.5px dashed var(--vien)}
.to-bai{list-style:none;margin:0 0 14px;padding:0;display:grid;gap:6px}
.to-bai li{display:flex;align-items:center;gap:12px}
.to-bai .hinh{width:62px;height:47px;flex:none;background:var(--nen);border-radius:10px}
.to-bai span{display:flex;flex-direction:column;line-height:1.3}.to-bai b{font-size:15px}.to-bai small{color:var(--muc-2);font-size:13.5px}
.to-than .nut-chinh{width:100%}
.to-chong{position:relative;height:12px}
.to-chong i{position:absolute;left:6px;right:6px;top:-4px;height:10px;background:var(--giay);border-radius:0 0 6px 6px;box-shadow:0 1px 0 var(--vien);z-index:1}
.to-chong i:last-child{left:12px;right:12px;top:2px;opacity:.85}
.to-lich.xe .to-than{animation:xe-to .7s cubic-bezier(.3,.6,.4,1) forwards;transform-origin:50% 0}
@keyframes xe-to{30%{transform:rotate(-3deg) translateY(-6px)}100%{transform:rotate(-14deg) translate(-40px,-140px);opacity:0}}

/* ---------- hình bài tập ---------- */
.hinh{display:block;width:100%;height:auto;aspect-ratio:4/3}
.hinh .san{stroke:#C4D0C8;stroke-width:1.5}
.hinh .xuong{stroke:var(--muc);stroke-width:5;stroke-linecap:round}
.hinh .dau{fill:var(--muc)}
.hinh .do-vat{fill:none;stroke:#8EA397;stroke-width:3;stroke-linecap:round}
.hinh .do-vat-dac{fill:#8EA397}
.hinh .day-keo{fill:none;stroke:var(--do);stroke-width:2;stroke-dasharray:4 3}
.hinh .bung{fill:var(--vang);opacity:.8}
.hinh.nho .xuong{stroke-width:6}
@media(prefers-reduced-motion:reduce){.hinh animate{display:none}}

/* ---------- mục tiêu ---------- */
.muc-ds{display:grid;gap:10px}
.muc{display:flex;align-items:center;gap:14px;background:var(--giay);border-radius:var(--bo);padding:10px 14px 10px 10px;text-decoration:none;color:var(--muc);box-shadow:0 1px 0 var(--vien)}
.muc .hinh{width:76px;flex:none;background:var(--nen);border-radius:10px}
.muc span{display:flex;flex-direction:column;flex:1}.muc b{font:800 23px/1.1 var(--so)}.muc small{color:var(--muc-2);font-size:14px}
.muc>.ic{color:var(--muc-3)}
.muc:hover{box-shadow:inset 0 0 0 2px var(--xanh)}
@media(min-width:760px){.muc-ds{grid-template-columns:1fr 1fr}}
@media(min-width:1040px){.muc-ds{grid-template-columns:repeat(3,1fr)}}

/* ---------- thử thách ---------- */
.tt-ds{display:grid;gap:10px}
.tt{display:flex;align-items:center;gap:14px;padding:14px 16px;border-radius:var(--bo);background:var(--muc);color:#fff;text-decoration:none}
.tt span{display:flex;flex-direction:column}.tt b{font-size:16px}.tt small{color:#B9C8BF;font-size:13.5px}
.tt-so{flex:none;font:800 42px/0.9 var(--so);color:var(--vang);align-items:center;min-width:56px}.tt-so small{font:700 13px/1 var(--chu);color:#B9C8BF}
.tt .hinh{width:72px;flex:none;background:rgba(255,255,255,.08);border-radius:10px}.tt .hinh .xuong{stroke:#fff}.tt .hinh .dau{fill:#fff}.tt .hinh .san{stroke:#41564b}
.tt-ds-lon .tt span:nth-child(2){flex:1}
@media(min-width:760px){.tt-ds{grid-template-columns:repeat(3,1fr)}}

/* ---------- bảng giá ---------- */
.bang-gia{display:grid;gap:14px}
.gia-cot{position:relative;background:var(--giay);border-radius:var(--bo-lon);padding:22px 20px;display:flex;flex-direction:column;box-shadow:0 1px 0 var(--vien)}
.gia-cot h3{font:800 24px/1 var(--so);margin-bottom:6px}
.gia-so{font:800 44px/1 var(--so);margin:0 0 14px}.gia-so small{font:500 15px var(--chu);color:var(--muc-3)}
.gia-cot ul{list-style:none;margin:0 0 18px;padding:0;display:grid;gap:8px;flex:1}
.gia-cot li{padding-left:26px;position:relative;font-size:15px}
.gia-cot li::before{content:"";position:absolute;left:2px;top:7px;width:12px;height:7px;border-left:2.5px solid var(--xanh);border-bottom:2.5px solid var(--xanh);transform:rotate(-45deg)}
.gia-noi{box-shadow:inset 0 0 0 3px var(--muc)}
.gia-nhan{position:absolute;top:-13px;left:20px;margin:0;background:var(--vang);padding:3px 12px;border-radius:999px;font-size:13px;font-weight:700}
@media(min-width:860px){.bang-gia{grid-template-columns:repeat(3,1fr)}.gia-noi{transform:translateY(-10px)}}

/* ---------- sản phẩm ---------- */
.luoi-sp{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
@media(min-width:720px){.luoi-sp{grid-template-columns:repeat(3,1fr)}}
@media(min-width:1000px){.luoi-sp{grid-template-columns:repeat(4,1fr);gap:16px}}
.ray-sp{display:grid;grid-auto-flow:column;grid-auto-columns:minmax(168px,46%);gap:12px;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:6px;scrollbar-width:thin}
.ray-sp>.sp{scroll-snap-align:start}
@media(min-width:900px){.ray-sp{grid-auto-flow:row;grid-template-columns:repeat(4,1fr);overflow:visible}}
.sp{background:var(--giay);border-radius:var(--bo);overflow:hidden;display:flex;flex-direction:column;box-shadow:0 1px 0 var(--vien)}
.sp-anh{position:relative;display:block;aspect-ratio:1;background:var(--nen) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2316231D' stroke-opacity='.18' stroke-width='1.6'%3E%3Cpath d='M6 7h12l-1 13H7z'/%3E%3Cpath d='M9 7a3 3 0 0 1 6 0'/%3E%3C/svg%3E") center/34% no-repeat;overflow:hidden}
.sp-anh img{width:100%;height:100%;object-fit:cover;display:block;font-size:0;color:transparent}
.sp-trong{display:block;width:100%;height:100%}
.sp-giam{position:absolute;top:8px;left:8px;background:var(--do);color:#fff;font:800 16px/1 var(--so);padding:4px 7px;border-radius:7px}
.sp-than{padding:10px 12px 12px;display:flex;flex-direction:column;gap:4px;flex:1}
.sp-ten{color:var(--muc);text-decoration:none;font-size:14px;line-height:1.38;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:2.76em}
.sp-gia{margin:0;display:flex;align-items:baseline;gap:6px;flex-wrap:wrap}.sp-gia b{font:800 22px/1 var(--so);color:var(--muc)}.sp-gia s{color:var(--muc-3);font-size:13px}
.sp-phu{margin:0;display:flex;gap:10px;font-size:12.5px;color:var(--muc-3);align-items:center}
.sp-sao{display:inline-flex;align-items:center;gap:3px;color:var(--muc-2)}.sp-sao .ic{width:14px;height:14px;fill:var(--vang);stroke:var(--vang)}
.sp-nut{margin-top:auto;text-align:center;padding:10px;border-radius:10px;background:var(--xanh-nhat);color:var(--xanh-dam);font-weight:700;font-size:14px;text-decoration:none}
.sp-nut:hover{background:var(--xanh);color:#fff}
.ke{max-width:var(--rong);margin:0 auto;padding:40px var(--le) 0}
.ke-dau{display:flex;align-items:baseline;justify-content:space-between;gap:10px;margin-bottom:12px}.ke-dau h3{font:800 26px/1.1 var(--so);margin:0}.ke-dau a{font-weight:700;font-size:15px}
.ke-chu{font-size:13px;color:var(--muc-3);margin:10px 0 0}
.ke-nav{margin:16px 0}
.loc-sp{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}
.loc-sp input,.loc-sp select{min-height:48px;border-radius:var(--bo);border:0;box-shadow:inset 0 0 0 1.5px var(--vien);background:var(--giay);padding:0 14px;font-size:15.5px}
.loc-sp input{flex:1 1 220px}
.phan-trang{display:flex;flex-wrap:wrap;gap:6px;justify-content:center;margin-top:24px}
.phan-trang a{min-width:44px;min-height:44px;display:grid;place-items:center;border-radius:12px;background:var(--giay);text-decoration:none;font-weight:700;color:var(--muc)}
.phan-trang a.dang{background:var(--muc);color:#fff}

/* ---------- bài tập ---------- */
.luoi-bt{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
@media(min-width:720px){.luoi-bt{grid-template-columns:repeat(3,1fr)}}
@media(min-width:1000px){.luoi-bt{grid-template-columns:repeat(4,1fr)}}
.bt{display:flex;flex-direction:column;background:var(--giay);border-radius:var(--bo);overflow:hidden;text-decoration:none;color:var(--muc);box-shadow:0 1px 0 var(--vien)}
.bt .hinh{background:var(--nen);padding:6px 8px 0}
.bt-chu{display:flex;flex-direction:column;gap:2px;padding:10px 12px 12px}
.bt-chu b{font-size:15px;line-height:1.3}.bt-chu small{color:var(--muc-2);font-size:13px}
.cap{display:flex;gap:4px;margin-top:4px}.cham{width:7px;height:7px;border-radius:50%;background:var(--vien)}.cham.dac{background:var(--xanh)}
.bt:hover{box-shadow:inset 0 0 0 2px var(--xanh)}
.bt[hidden]{display:none}
.loc-nhom{margin-top:16px}
.bt-trang{max-width:var(--rong);margin:0 auto;padding:28px var(--le) 0}
.bt-trang-in{display:grid;gap:24px}
.bt-hinh-lon{background:var(--giay);border-radius:var(--bo-lon);padding:16px 18px 6px;box-shadow:0 1px 0 var(--vien)}
.bt-the{display:flex;flex-wrap:wrap;gap:8px}.bt-the span{background:var(--giay);border-radius:999px;padding:6px 12px;font-size:13.5px;font-weight:500;box-shadow:inset 0 0 0 1.5px var(--vien)}
.buoc{padding-left:0;list-style:none;counter-reset:b;display:grid;gap:12px;margin:0 0 20px}
.buoc li{counter-increment:b;position:relative;padding-left:46px;font-size:16.5px}
.buoc li::before{content:counter(b);position:absolute;left:0;top:-2px;width:32px;height:32px;border-radius:50%;background:var(--muc);color:#fff;display:grid;place-items:center;font:800 19px/1 var(--so)}
.bt-doi{display:flex;flex-wrap:wrap;gap:16px;justify-content:space-between;margin:20px 0}.bt-doi a{display:inline-flex;align-items:center;gap:4px;font-weight:700}
@media(min-width:900px){.bt-trang-in{grid-template-columns:1fr 1fr;align-items:start;gap:48px}.bt-hinh-lon{position:sticky;top:90px}}

/* ---------- gói ---------- */
.goi-ds{display:grid;gap:14px}
@media(min-width:760px){.goi-ds{grid-template-columns:repeat(2,1fr)}}
.goi{background:var(--giay);border-radius:var(--bo-lon);padding:20px;display:flex;flex-direction:column;gap:6px;box-shadow:0 1px 0 var(--vien)}
.goi h3{font:800 26px/1.05 var(--so)}.goi h3 a{color:var(--muc);text-decoration:none}
.goi>p{color:var(--muc-2);font-size:15px}
.goi-gia{display:flex;align-items:baseline;gap:10px;margin-top:auto}.goi-gia b{font:800 36px/1 var(--so)}.goi-gia span{color:var(--muc-3);font-size:13.5px}
.goi-noi{box-shadow:inset 0 0 0 3px var(--muc)}
.mua-form{display:grid;gap:8px;margin-top:8px}
.mua-form input,.form-doc input,.form-doc select,.form-doc textarea,.mua-hop input,.vip-nhap input,.nhac-form input,.toi-form input{width:100%;min-height:50px;border-radius:var(--bo);border:0;box-shadow:inset 0 0 0 1.5px var(--vien);background:var(--giay);padding:10px 14px;font-size:16px}
.form-doc textarea{min-height:auto;line-height:1.5}
.combo{margin-top:16px;display:grid;gap:14px;background:var(--muc);color:#fff;border-radius:var(--bo-lon);padding:22px}
.combo h2{color:#fff}.combo p{color:#C7D3CC}
@media(min-width:860px){.combo{grid-template-columns:1.2fr 1fr;align-items:center}}
.goi-trang{max-width:var(--rong);margin:0 auto;padding:28px var(--le) 0}
.goi-trang-in{display:grid;gap:24px}
.goi-co{list-style:none;padding:0;margin:0;display:grid;gap:10px}.goi-co li{display:flex;gap:12px;align-items:flex-start;font-size:16px}.goi-co .ic{color:var(--xanh);margin-top:2px}
.mua-hop{background:var(--giay);border-radius:var(--bo-lon);padding:20px;display:grid;gap:12px;box-shadow:0 1px 0 var(--vien),0 18px 40px -26px rgba(22,35,29,.35);align-self:start}
.mua-hop label{display:grid;gap:6px;font-size:14px;font-weight:500;color:var(--muc-2)}
.mua-gia{margin:0;display:flex;align-items:baseline;gap:12px}.mua-gia b{font:800 52px/1 var(--so)}.mua-gia span{color:var(--muc-3);font-size:14px}
@media(min-width:900px){.goi-trang-in{grid-template-columns:1.2fr .8fr;gap:48px}.mua-hop{position:sticky;top:90px}}
.tuan-thu{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:10px}
.ngay-thu{background:var(--giay);border-radius:var(--bo);padding:12px;display:flex;flex-direction:column;gap:2px;box-shadow:0 1px 0 var(--vien)}
.ngay-thu b{font:800 22px/1 var(--so);color:var(--do)}.ngay-thu span{font-weight:700;font-size:14px}.ngay-thu small{color:var(--muc-2);font-size:13px;line-height:1.4}
.vip-nhap{display:flex;flex-wrap:wrap;gap:10px;align-items:flex-end;margin-top:20px;background:var(--giay);padding:16px;border-radius:var(--bo-lon)}
.vip-nhap label{flex:1 1 240px;display:grid;gap:6px;font-size:14px;color:var(--muc-2);font-weight:500}

/* ---------- trang lịch ---------- */
.lich-dau{padding:24px var(--le) 0}
.lich-dau-in{max-width:var(--rong);margin:auto;display:grid;gap:24px}
.lich-so{display:grid;grid-template-columns:repeat(2,1fr);gap:8px;margin:12px 0 16px}
.lich-so span{background:var(--giay);border-radius:var(--bo);padding:10px 12px;display:flex;flex-direction:column;font-size:13px;color:var(--muc-2);box-shadow:0 1px 0 var(--vien)}
.lich-so b{font:800 28px/1.05 var(--so);color:var(--muc)}
.lich-cong-cu{display:flex;flex-wrap:wrap;gap:8px}
.lich-to{display:flex;justify-content:center}
@media(min-width:620px){.lich-so{grid-template-columns:repeat(4,1fr)}}
@media(min-width:960px){.lich-dau-in{grid-template-columns:1.1fr .9fr;gap:48px;align-items:start}}
.luoi-ngay{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(5,1fr);gap:8px}
@media(min-width:560px){.luoi-ngay{grid-template-columns:repeat(7,1fr)}}
@media(min-width:1000px){.luoi-ngay{grid-template-columns:repeat(10,1fr)}}
.o-ngay{position:relative;width:100%;aspect-ratio:1/1.08;border:0;border-radius:12px;background:var(--giay);cursor:pointer;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;box-shadow:0 1px 0 var(--vien);border-top:5px solid var(--vien);padding:4px}
.o-ngay b{font:800 26px/1 var(--so)}.o-ngay small{font-size:10.5px;color:var(--muc-3);line-height:1.15;text-align:center}
.o-s{border-top-color:var(--do)}.o-c{border-top-color:var(--vang)}.o-m{border-top-color:#7FB8A1}.o-r{border-top-color:var(--vien)}.o-t{border-top-color:var(--muc)}
.o-ngay.chon{box-shadow:inset 0 0 0 2.5px var(--muc)}
.o-ngay.xong{background:var(--xanh);color:#fff}.o-ngay.xong small{color:#cfe6dc}
.o-ngay.xong::after{content:"";position:absolute;right:7px;top:7px;width:10px;height:6px;border-left:2.5px solid #fff;border-bottom:2.5px solid #fff;transform:rotate(-45deg)}
.o-ngay.hom-nay{outline:3px solid var(--do);outline-offset:2px}
.chu-giai{display:flex;flex-wrap:wrap;gap:6px 14px;align-items:center;font-size:13px;color:var(--muc-2);margin-top:12px}
.chu-giai span{width:18px;height:5px;border-radius:3px;display:inline-block;background:var(--vien);margin-right:-8px}
.chu-giai .o-s{background:var(--do)}.chu-giai .o-c{background:var(--vang)}.chu-giai .o-m{background:#7FB8A1}
.chi-tiet-ngay .ct-dau h2{margin-bottom:6px}.chi-tiet-ngay .ct-dau p{color:var(--muc-2)}
.chi-tiet-ngay h3{margin-top:28px}.chi-tiet-ngay h3 small{color:var(--muc-3);font-weight:500;font-size:14px}
.thuc-don{list-style:none;padding:0;margin:0;display:grid;gap:8px}
.thuc-don li{display:grid;grid-template-columns:76px 1fr auto;gap:10px;align-items:center;background:var(--giay);border-radius:var(--bo);padding:12px 14px;box-shadow:0 1px 0 var(--vien)}
.thuc-don span{font-size:13px;font-weight:700;color:var(--xanh)}.thuc-don b{font-weight:500;font-size:15px}.thuc-don small{color:var(--muc-3);font-size:13px;white-space:nowrap}
.nhac,.mua-goi{display:grid;gap:14px;background:var(--giay);border-radius:var(--bo-lon);padding:22px;box-shadow:0 1px 0 var(--vien)}
.nhac-form{display:flex;gap:8px;flex-wrap:wrap}.nhac-form input{flex:1 1 220px}
.mua-goi{background:var(--xanh);color:#fff}.mua-goi h2{color:#fff}.mua-goi p{color:#d6ebe2}
@media(min-width:860px){.nhac,.mua-goi{grid-template-columns:1.2fr 1fr;align-items:center}}

/* ---------- trình phát buổi tập ---------- */
.choi{position:fixed;inset:0;z-index:80;background:var(--muc);color:#fff;display:flex;flex-direction:column;padding:16px var(--le) calc(18px + env(safe-area-inset-bottom))}
.choi-dau{display:flex;justify-content:space-between;align-items:center;font-size:14px;color:#B9C8BF}
.choi-dong{width:44px;height:44px;border:0;border-radius:12px;background:rgba(255,255,255,.1);color:#fff;cursor:pointer;display:grid;place-items:center}
.choi-thanh{height:6px;border-radius:3px;background:rgba(255,255,255,.12);margin:10px 0 0;overflow:hidden}.choi-thanh i{display:block;height:100%;background:var(--vang);transition:width .3s}
.choi-hinh{flex:1;display:grid;place-items:center;min-height:0}
.choi-hinh .hinh{max-width:min(92vw,520px);max-height:46vh;background:rgba(255,255,255,.05);border-radius:20px}
.choi-hinh .hinh .xuong{stroke:#fff}.choi-hinh .hinh .dau{fill:#fff}.choi-hinh .hinh .san{stroke:#41564b}
.choi-ten{text-align:center;font:800 34px/1.05 var(--so);margin:8px 0 2px}
.choi-luong{text-align:center;font:800 76px/1 var(--so);color:var(--vang);margin:0}
.choi-goi-y{text-align:center;color:#B9C8BF;font-size:14.5px;max-width:46ch;margin:6px auto 14px}
.choi-nut{display:grid;grid-template-columns:auto 1fr auto;gap:10px}
.choi-nut button{min-height:58px;border-radius:16px;border:0;font-weight:700;font-size:17px;cursor:pointer}
.choi-nut .phu{background:rgba(255,255,255,.1);color:#fff;padding:0 18px}
.choi-nut .chinh{background:var(--do);color:#fff}
.choi.nghi{background:var(--xanh-dam)}

/* ---------- bài đọc ---------- */
.bai-ds{display:grid;gap:12px}
@media(min-width:760px){.bai-ds{grid-template-columns:repeat(2,1fr)}}
.bai{display:flex;gap:14px;align-items:center;background:var(--giay);border-radius:var(--bo);padding:12px;text-decoration:none;color:var(--muc);box-shadow:0 1px 0 var(--vien)}
.bai .hinh{width:96px;flex:none;background:var(--nen);border-radius:10px}
.bai span{display:flex;flex-direction:column;gap:4px}.bai b{font-size:16px;line-height:1.35}.bai small{color:var(--muc-2);font-size:13.5px;line-height:1.45}
.bai-trang{max-width:760px;margin:0 auto;padding:28px var(--le) 0}
.bai-mo{font-size:18.5px;color:var(--muc-2);line-height:1.55}
.bai-than{font-size:17px;line-height:1.7}
.bai-than h2{margin-top:1.6em;font-size:clamp(28px,6vw,34px)}
.bai-than ul,.bai-than ol{padding-left:22px}.bai-than li{margin-bottom:8px}
.bai-than .luoi-bt{margin:16px 0 8px}
@media(min-width:760px){.bai-than .luoi-bt{grid-template-columns:repeat(2,1fr)}}
.bai-than .ke{padding:24px 0 8px}
.cta-bai{margin:24px 0}
.hoi-dap{margin-top:36px}
.hoi-dap details{background:var(--giay);border-radius:var(--bo);margin-bottom:8px;box-shadow:0 1px 0 var(--vien)}
.hoi-dap summary{cursor:pointer;padding:16px 18px;font-weight:700;list-style:none;display:flex;justify-content:space-between;gap:12px}
.hoi-dap summary::after{content:"+";font:800 24px/1 var(--so);color:var(--xanh)}
.hoi-dap details[open] summary::after{content:"–"}
.hoi-dap details p{padding:0 18px 16px;margin:0;color:var(--muc-2)}
.tu-ds{display:grid;gap:8px;margin:0}
.tu-ds>div{background:var(--giay);border-radius:var(--bo);padding:14px 16px;box-shadow:0 1px 0 var(--vien)}
.tu-ds dt a{font:800 24px/1.1 var(--so);color:var(--muc);text-decoration:none}.tu-ds dd{margin:4px 0 0;color:var(--muc-2);font-size:15px}
@media(min-width:760px){.tu-ds{grid-template-columns:repeat(2,1fr)}}
.tu-nghia{font-size:22px;font-weight:700;color:var(--xanh-dam)}
blockquote{margin:20px 0;padding:18px 20px;background:var(--giay);border-left:5px solid var(--do);border-radius:6px 14px 14px 6px;font-size:18px}
blockquote p{margin:0}blockquote footer{margin-top:6px;color:var(--muc-2);font-size:15px}
.tu-khac{display:flex;flex-wrap:wrap;gap:8px}.tu-khac a{background:var(--giay);padding:8px 12px;border-radius:999px;text-decoration:none;font-size:14.5px;box-shadow:inset 0 0 0 1.5px var(--vien);color:var(--muc)}

/* ---------- công cụ ---------- */
.cong-cu-luoi{display:grid;gap:14px}
@media(min-width:760px){.cong-cu-luoi{grid-template-columns:repeat(2,1fr)}}
.cc,.bmi-nhanh{background:var(--giay);border-radius:var(--bo-lon);padding:20px;display:grid;gap:12px;box-shadow:0 1px 0 var(--vien);align-content:start}
.cc h2{font-size:28px;margin:0}
.cc label,.bmi-nhanh label{display:grid;gap:6px;font-size:14px;font-weight:500;color:var(--muc-2)}
.cc input,.cc select,.bmi-nhanh input{width:100%;min-height:48px;border-radius:12px;border:0;box-shadow:inset 0 0 0 1.5px var(--vien);background:var(--nen);padding:8px 12px;font-size:17px}
.cc output,.bmi-nhanh output{display:block;background:var(--muc);color:#fff;border-radius:var(--bo);padding:14px 16px;font-size:15px;line-height:1.5}
.cc output b,.bmi-nhanh output b{font:800 34px/1 var(--so);color:var(--vang);display:block;margin-bottom:2px}
.bmi-nhanh{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}.bmi-nhanh output{grid-column:1/-1}

/* ---------- PT ---------- */
.pt-ds{display:grid;gap:12px}@media(min-width:760px){.pt-ds{grid-template-columns:repeat(3,1fr)}}
.pt{background:var(--giay);border-radius:var(--bo-lon);padding:18px;display:flex;flex-direction:column;gap:4px;box-shadow:0 1px 0 var(--vien)}.pt p{margin:0;color:var(--muc-2);font-size:14.5px}.pt .nut-chinh{margin-top:10px}
.form-doc{display:grid;gap:12px}.form-doc label{display:grid;gap:6px;font-size:14px;font-weight:500;color:var(--muc-2)}

/* ---------- tiến độ ---------- */
.toi-so{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.toi-so div{background:var(--giay);border-radius:var(--bo-lon);padding:16px;text-align:center;box-shadow:0 1px 0 var(--vien)}
.toi-so b{display:block;font:800 52px/1 var(--so);color:var(--do)}.toi-so span{font-size:13.5px;color:var(--muc-2)}
.toi-form{display:grid;grid-template-columns:1fr 1fr;gap:10px;align-items:end}.toi-form label{display:grid;gap:6px;font-size:14px;color:var(--muc-2)}.toi-form button{grid-column:1/-1}
.toi-bieu-do{margin:16px 0}.toi-bieu-do svg{width:100%;height:auto;background:var(--giay);border-radius:var(--bo)}
.toi-ds{list-style:none;padding:0;margin:0;display:grid;gap:6px}.toi-ds li{display:flex;justify-content:space-between;background:var(--giay);border-radius:10px;padding:10px 14px;font-size:15px}

/* ---------- du lịch (nước ngoài) ---------- */
.nn{max-width:var(--rong);margin:40px auto 0;padding:0 var(--le)}
.nn-dau p{color:var(--muc-2);max-width:60ch}
.nn-luoi{display:grid;gap:10px}@media(min-width:720px){.nn-luoi{grid-template-columns:repeat(3,1fr)}}
.nn-o{display:flex;gap:12px;align-items:center;background:var(--giay);border-radius:var(--bo);padding:14px;text-decoration:none;color:var(--muc);box-shadow:0 1px 0 var(--vien)}
.nn-o .ic{color:var(--xanh);width:28px;height:28px}.nn-o span{display:flex;flex-direction:column}.nn-o b{font-size:15px;line-height:1.3}.nn-o small{color:var(--muc-3);font-size:13px}

/* ---------- TOMI MART ---------- */
.hop-tomi{max-width:var(--rong);margin:56px auto 0;padding:0 var(--le)}
.hop-tomi-in{background:var(--muc);color:#fff;border-radius:var(--bo-lon);padding:22px;display:grid;gap:14px;align-items:center}
.hop-tomi h2{color:#fff;margin-bottom:4px}.hop-tomi p{color:#C7D3CC;margin:0;font-size:15px}
@media(min-width:760px){.hop-tomi-in{grid-template-columns:1fr auto;padding:28px 32px}}
.tomi-fab{position:fixed;right:14px;bottom:calc(84px + env(safe-area-inset-bottom));z-index:30}
@media(min-width:900px){.tomi-fab{bottom:24px}}

/* ---------- thanh đáy (điện thoại) ---------- */
.thanh-day{position:fixed;left:0;right:0;bottom:0;z-index:35;padding:10px var(--le) calc(10px + env(safe-area-inset-bottom));background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border-top:1px solid var(--vien);transform:translateY(110%);transition:transform .22s ease-out}
.thanh-day.hien{transform:none}
.thanh-day .nut-chinh{width:100%}
@media(min-width:900px){.thanh-day{display:none}}

/* ---------- chân trang ---------- */
.chan{background:var(--muc);color:#C7D3CC;margin-top:64px;padding:40px var(--le) calc(100px + env(safe-area-inset-bottom))}
.chan-in{max-width:var(--rong);margin:auto;display:grid;gap:28px}
.chan-thuong-hieu p{margin-top:12px;font-size:15px;max-width:40ch}
.chan-cot{display:flex;flex-direction:column;gap:8px}.chan-cot b{color:#fff;font:800 20px/1 var(--so);margin-bottom:4px}
.chan a{color:#E5EEE9;text-decoration:none}.chan a:hover{text-decoration:underline}
.chan-duoi{max-width:var(--rong);margin:28px auto 0;padding-top:20px;border-top:1px solid #2F4238;font-size:13px;color:#93A69B}
.chan-duoi p{margin:0 0 8px}
@media(min-width:760px){.chan-in{grid-template-columns:1.5fr 1fr 1fr 1fr}.chan{padding-bottom:40px}}

/* ---------- thanh toán QR-TAI-NGAY (tông sáng) ---------- */
.qtn{--qtn-nen:#FFFFFF;--qtn-vien:#D3DDD6;--qtn-chu:#16231D;--qtn-nhan:#E5322D;font-family:var(--chu)}
.qtn section{box-shadow:0 1px 0 var(--vien)}
.qtn-nut{background:var(--do);color:#fff}.qtn-nut-pp{background:#0070BA}
.qtn-cho{background:#FFF4D6;color:#6B4B00}.qtn-ok{background:var(--xanh-nhat);color:var(--xanh-dam)}.qtn-loi{background:#FDE3E2;color:#8C1B17}

/* ---------- quản trị ---------- */
.qt-vao{display:grid;place-items:center;min-height:100vh;padding:16px}
.qt-hop{background:var(--giay);border-radius:var(--bo-lon);padding:24px;width:min(420px,100%);display:grid;gap:12px}
.qt-hop h1{font-size:34px}.qt-hop label{display:grid;gap:6px;font-size:14px;color:var(--muc-2)}.qt-hop input{min-height:48px;border-radius:12px;border:0;box-shadow:inset 0 0 0 1.5px var(--vien);padding:0 12px;font-size:16px}
.qt-dau{display:flex;flex-wrap:wrap;align-items:center;gap:10px;padding:10px var(--le);background:var(--giay);border-bottom:1px solid var(--vien);position:sticky;top:0;z-index:5}
.qt-dau nav{display:flex;flex-wrap:wrap;gap:4px;flex:1}.qt-dau nav a{padding:8px 12px;border-radius:10px;text-decoration:none;color:var(--muc);font-weight:500;font-size:14.5px}.qt-dau nav a.dang{background:var(--muc);color:#fff}
.qt-than{max-width:1200px;margin:auto;padding:20px var(--le) 60px}.qt-than h1{font-size:40px}
.qt-the{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px;margin-bottom:16px}
.qt-the div{background:var(--giay);border-radius:var(--bo);padding:14px;font-size:13px;color:var(--muc-2)}.qt-the b{display:block;font:800 30px/1.1 var(--so);color:var(--muc)}
.qt-hang{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin:8px 0;font-size:14px;color:var(--muc-2)}
.qt-cot{display:flex;align-items:flex-end;gap:3px;height:120px;background:var(--giay);border-radius:var(--bo);padding:10px}.qt-cot span{flex:1;background:var(--xanh);border-radius:3px 3px 0 0;min-height:2px}
.qt-2{display:grid;gap:20px}@media(min-width:860px){.qt-2{grid-template-columns:1fr 1fr}}
.qt table,.qt-bang{width:100%;border-collapse:collapse;background:var(--giay);border-radius:var(--bo);overflow:hidden;font-size:14px}
.qt td,.qt th{padding:9px 10px;border-bottom:1px solid var(--nen);text-align:left;vertical-align:top}.qt th{background:var(--nen);font-weight:700}
.qt-cd{max-width:760px}.qt code{background:var(--giay);padding:2px 6px;border-radius:6px}

/* ---------- in lịch ---------- */
@media print{
  .dau,.chan,.tomi-fab,.thanh-day,.hop-tomi,.ke,.khoi-nhac,.khoi-mua,#doi,.lich-cong-cu,.nn,.ngan{display:none!important}
  body{background:#fff}.o-ngay{box-shadow:inset 0 0 0 1px #999}.to-lich{filter:none}
}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}}
/* Thanh toán QR – Tải ngay: theo màu Keep */
body .qtn{--qtn-nen:#fff;--qtn-vien:#D7E2DA;--qtn-chu:var(--muc);--qtn-nhan:var(--do);font-family:inherit}
.qtn .qtn-nut{color:#fff;box-shadow:0 3px 0 #a81f1b}.qtn .qtn-nut-pp{background:#0070BA;box-shadow:0 3px 0 #004f84}
.qtn .qtn-cho{background:#FFF4CF;color:var(--muc)}.qtn .qtn-ok{background:#DDF3E8;color:var(--xanh)}.qtn .qtn-loi{background:#FDE3E2;color:#a81f1b}
body .qtn h3{font-family:'Barlow Condensed',sans-serif;font-weight:800;font-size:22px}