/* Bộ nhận diện Bài 3 (phông Lora + Inter, họa tiết vân gỗ, thanh mầm), đổi màu theo dụng thần của chị Bình An:
   Mộc (xanh lá) làm màu chính, Hỏa (đỏ ấm) cho nút bấm và điểm nhấn. Tránh mảng lớn màu Kim (trắng/xám) và Thủy (đen/xanh dương). */
@font-face{font-family:"Lora";src:url(/fonts/Lora.woff) format("woff");font-weight:400 700;font-display:swap}
@font-face{font-family:"Lora";src:url(/fonts/Lora-Italic.woff) format("woff");font-weight:400 700;font-style:italic;font-display:swap}
@font-face{font-family:"Inter";src:url(/fonts/Inter-Regular.woff) format("woff");font-weight:400;font-display:swap}
@font-face{font-family:"Inter";src:url(/fonts/Inter-Medium.woff) format("woff");font-weight:500;font-display:swap}
@font-face{font-family:"Inter";src:url(/fonts/Inter-SemiBold.woff) format("woff");font-weight:600;font-display:swap}
@font-face{font-family:"Inter";src:url(/fonts/Inter-Bold.woff) format("woff");font-weight:700;font-display:swap}

:root{
  /* cùng bảng màu sáng với web học IPA (hocipa.pages.dev) */
  --chinh:#2C7A47; --xanh-mam:#86B97A; --chu:#18291D; --phu:#4F6455;
  --nen:#E9F3E4; --la-dam:#2C7A47; --trang:#F7FBF4; --lom:#DCEAD5;
  --hoa:#C0392B; --hoa-dam:#A02E22; --hoa-nhat:#F8DDD8;
  --vien:#C6DABE; --accent-soft:#D3E9D4; --ok:#17834A; --ok-bg:#DFF3E7; --bong:0 1px 2px rgba(24,41,29,.05),0 6px 20px rgba(24,41,29,.06);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:72px;-webkit-text-size-adjust:100%}
body{font-family:Inter,system-ui,sans-serif;font-weight:500;background:var(--nen);color:var(--chu);line-height:1.6;font-size:17px;overflow-x:hidden}
h1,h2,h3{font-family:Lora,Georgia,serif;font-weight:700;line-height:1.2;color:var(--chinh)}
a{color:var(--la-dam)}
.khung{max-width:1040px;margin:0 auto;padding:0 16px;position:relative}
.muc{padding:64px 0}
.muc.khung{padding:64px 16px}
.nen-trang{background:var(--trang)}
h2{font-size:clamp(28px,5vw,38px)}
h1,h2,h3,.chuc-danh{text-wrap:balance} p{text-wrap:pretty}
.thanh-mam{display:block;width:56px;height:6px;border-radius:3px;background:var(--xanh-mam);margin:12px 0 24px}
.phu{max-width:640px;margin:-8px 0 28px;color:var(--chinh)}

/* Nút */
.nut{display:inline-block;background:var(--hoa);color:#fff;font-weight:700;text-decoration:none;padding:13px 24px;border-radius:999px;border:0;font:inherit;font-weight:700;cursor:pointer;text-align:center;transition:transform .15s,box-shadow .15s}
.nut:hover{background:var(--hoa-dam);transform:translateY(-1px);box-shadow:0 4px 14px rgba(142,42,32,.25)}
.nut:disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}
.nut-nho{padding:8px 16px;font-size:15px}
.nut-vien{display:inline-block;color:var(--chinh);text-decoration:none;font-weight:700;padding:11px 22px;border-radius:999px;border:2px solid var(--chinh)}
.nut-vien:hover{background:var(--trang)}

/* Đầu trang */
.dau{position:sticky;top:0;z-index:10;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 16px;background:rgba(233,243,228,.94);backdrop-filter:blur(8px);border-bottom:1px solid var(--vien)}
.ten-trang{display:flex;align-items:center;gap:10px;text-decoration:none;font-family:Lora,serif;font-weight:700;font-size:20px;color:var(--chinh)}
.ten-trang svg{width:34px;height:34px;flex:none}
.dau nav{display:flex;align-items:center;gap:18px;margin-left:auto}
.dau nav a:not(.nut){color:var(--chu);text-decoration:none;font-size:15px}
.dau nav a:not(.nut):hover{color:var(--chinh)}
@media (max-width:640px){.dau nav a:not(.nut){display:none}}

/* Mở đầu */
.mo-dau{position:relative;overflow:hidden;background:var(--lom);color:var(--chu);padding:72px 0 80px}
.mo-dau h1{color:var(--chinh);font-size:clamp(46px,10vw,84px);line-height:1.16}
.mo-dau .nhan{font-size:18px;color:var(--phu)}
.mo-dau .chuc-danh{font-family:Lora,serif;font-size:clamp(20px,3.4vw,25px);font-weight:600;max-width:720px;color:var(--hoa)}
.mo-dau .gioi-thieu{max-width:660px;margin-top:14px}
.hang-nut{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.van-go{position:absolute;width:560px;height:560px;right:-200px;top:-120px;color:var(--chinh);opacity:.1;pointer-events:none}

/* Thẻ */
.luoi{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px}
.the,.goi{background:var(--trang);border:1px solid var(--vien);border-radius:16px;padding:22px;box-shadow:var(--bong)}
.nen-trang .the{background:var(--nen);box-shadow:none}
.the .icon,.goi .icon{font-size:28px;line-height:1;margin-bottom:10px}
.the h3,.goi h3{font-size:20px;margin-bottom:6px}
.the p{font-size:16px}

/* Thành tích */
.so-lieu{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin-bottom:28px}
.o-so{background:var(--nen);border-radius:16px;padding:22px}
.o-so b{display:block;font-family:Lora,serif;font-size:clamp(30px,6vw,40px);color:var(--hoa);line-height:1.15}
.cau-chuyen{background:var(--hoa-nhat);color:var(--chu);border-radius:20px;padding:28px;position:relative;overflow:hidden}
.cau-chuyen h3{color:var(--hoa);font-size:22px;margin-bottom:10px}
.cau-chuyen blockquote{font-family:Lora,serif;font-style:italic;font-size:clamp(22px,4vw,28px);margin:18px 0;padding-left:16px;border-left:5px solid var(--hoa)}
.cau-chuyen figcaption{font-weight:600}

/* Gói */
.luoi-goi{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}
.goi{display:flex;flex-direction:column;gap:8px}
.goi .danh-cho{font-size:15px;color:var(--la-dam);font-weight:600}
.goi .ghi-chu{font-size:15px;color:var(--chinh);font-style:italic}
.goi .gia{display:flex;justify-content:space-between;align-items:baseline;margin-top:auto;padding-top:14px;border-top:1px dashed var(--vien)}
.goi .gia b{font-family:Lora,serif;font-size:28px;color:var(--hoa)}
.goi .nut{margin-top:10px}

/* Dự án */
.du-an .ket-qua{color:var(--la-dam);font-weight:600;margin-top:8px}
.nhan-nho{display:flex;flex-wrap:wrap;gap:6px;margin-top:12px}
.nhan-nho span{font-size:13px;background:var(--trang);border:1px solid var(--vien);border-radius:999px;padding:2px 10px}
.lien-ket{display:inline-block;margin-top:12px;font-weight:700;text-decoration:none}

/* Đặt lịch */
.dat-lich{position:relative;overflow:hidden;background:var(--hoa-nhat)}
.dat-lich .phu{color:var(--chu)}
.dat-lich .van-go{color:var(--hoa)}
.dat-lich .van-go{left:-240px;right:auto;top:auto;bottom:-220px}
.dat-tg{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin:20px 0 0;color:var(--chu);max-width:760px}
.hop-dat{background:var(--trang);border-radius:20px;padding:24px;box-shadow:var(--bong);max-width:760px}
.buoc{margin-bottom:22px}
.buoc>h3{font-family:Inter,sans-serif;font-size:16px;font-weight:700;color:var(--chinh);margin-bottom:10px}
.chon{display:flex;flex-wrap:wrap;gap:8px}
.chon button{font:inherit;font-size:15px;font-weight:600;background:var(--nen);color:var(--chu);border:2px solid transparent;border-radius:12px;padding:10px 14px;cursor:pointer;min-height:44px}
.chon button:hover{border-color:var(--vien)}
.chon button[aria-pressed="true"]{background:var(--chinh);color:var(--nen)}
.chon button:disabled{opacity:.4;cursor:not-allowed;text-decoration:line-through}
.chon button small{display:block;font-weight:500;font-size:13px;opacity:.85}
.cuon{flex-wrap:nowrap;overflow-x:auto;padding-bottom:6px;scrollbar-width:thin}
.cuon button{flex:none}
.o-nhap{display:grid;gap:12px;grid-template-columns:1fr 1fr}
.o-nhap label{display:flex;flex-direction:column;gap:4px;font-size:14px;font-weight:600;color:var(--chinh)}
.o-nhap .rong{grid-column:1/-1}
.o-nhap input,.o-nhap textarea{font:inherit;font-size:16px;font-weight:500;color:var(--chu);background:var(--nen);border:2px solid transparent;border-radius:10px;padding:11px 12px;width:100%}
.o-nhap input:focus,.o-nhap textarea:focus{outline:none;border-color:var(--xanh-mam);background:var(--trang)}
.o-nhap textarea{min-height:80px;resize:vertical}
.bay{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
@media (max-width:560px){.o-nhap{grid-template-columns:1fr}.hop-dat{padding:18px}}
.tom-tat{background:var(--nen);border-radius:12px;padding:12px 14px;margin:16px 0;font-size:15px}
.tom-tat b{color:var(--chinh)}
.loi{color:#9B2C1F;font-weight:600;margin-top:10px}
.cho{color:var(--chinh);font-style:italic}

/* Thanh toán */
.thanh-toan{display:grid;grid-template-columns:240px 1fr;gap:24px;align-items:start}
@media (max-width:640px){.thanh-toan{grid-template-columns:1fr}}
.qr{background:var(--trang);border:2px solid var(--vien);border-radius:16px;padding:12px;text-align:center}
.qr img{display:block;width:100%;max-width:216px;height:auto;margin:0 auto;image-rendering:pixelated;-webkit-touch-callout:default}
.qr-ghi{font-size:13px;color:var(--phu);margin-top:6px}
.giu-cho{background:var(--nen);border:2px solid var(--chinh);border-radius:14px;padding:14px 16px;margin-bottom:18px}
.giu-cho p+p{margin-top:6px}
.giu-cho-tieu{font-weight:700;color:var(--chinh);font-size:18px}
.giu-cho-lich b{font-family:Lora,serif;font-size:20px;color:var(--chu)}
.giu-cho .dem{font-family:Lora,serif;font-size:22px;color:var(--hoa)}
.dong-phu{display:block;font-size:12px;font-weight:500;color:var(--phu);margin-top:2px;overflow-wrap:normal;word-break:normal}
.da-ck{margin-top:16px;font-size:15px}
.da-ck .nut{margin-top:8px;width:100%}
.da-bao{background:var(--accent-soft);color:var(--chu);border-radius:12px;padding:12px 14px}
.qr .nut{width:100%;margin-top:8px;font-size:15px;padding:10px}
.dong{display:flex;justify-content:space-between;align-items:center;gap:8px;padding:9px 0;border-bottom:1px dashed var(--vien);font-size:15px}
.dong span{color:var(--chinh)}
.dong b{text-align:right;overflow-wrap:anywhere}
.chep{font:inherit;font-size:13px;font-weight:700;background:var(--nen);color:var(--chu);border:0;border-radius:8px;padding:5px 9px;cursor:pointer;margin-left:6px;white-space:nowrap}
.dem-gio{margin-top:14px;font-size:15px;background:var(--nen);border-radius:12px;padding:12px 14px}
.dem-gio b{font-family:Lora,serif;font-size:22px;color:var(--hoa)}
.xong{text-align:center;padding:16px 0}
.xong .dau-tich{font-size:52px;line-height:1}
.xong h3{font-size:26px;margin:10px 0}

/* Bát tự */
/* Nút lịch góc phải + hộp bát tự (giống web học IPA) */
.lich{position:relative;font-size:13px;line-height:1.45}
.lich-chip{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--vien);background:var(--trang);color:var(--chu);border-radius:999px;padding:5px 6px 5px 12px;cursor:pointer;font:inherit;font-size:13px;white-space:nowrap}
.lich-chip:hover,.lich-chip[aria-expanded="true"]{border-color:var(--hoa)}
.lc-d{font-weight:700;color:var(--hoa)}
.lc-am{color:var(--phu)}
.lc-dung{border-radius:999px;padding:2px 9px;font-weight:600;font-size:12px;background:var(--lom)}
.lc-dung.hop{background:var(--ok-bg);color:var(--ok)} .lc-dung.vua{background:var(--accent-soft);color:var(--chinh)} .lc-dung.it{background:var(--hoa-nhat);color:var(--hoa)}
.lich-pop{position:absolute;right:0;top:calc(100% + 8px);z-index:20;width:min(340px,calc(100vw - 32px));background:var(--trang);border:1px solid var(--vien);border-top:3px solid var(--hoa);border-radius:14px;padding:12px 14px;box-shadow:0 12px 32px rgba(20,40,25,.16)}
.lich p{margin:6px 0 0}
.lich-top{display:flex;justify-content:space-between;align-items:center;gap:10px}
.lich-top>div{display:flex;align-items:center;gap:10px}
.lich-day{font-size:40px;line-height:1;color:var(--hoa);font-weight:700}
.lich-my{color:var(--phu);font-size:12px;line-height:1.3}
.lich-clock{font-size:22px;font-weight:700;color:var(--chinh);font-variant-numeric:tabular-nums}
.lich-dung{background:var(--hoa-nhat);border-radius:8px;padding:6px 8px}
.lich-row{color:var(--phu)}
.lich .tru b{font-size:16px}
.lich-bazi{display:flex;width:100%;justify-content:center;margin-top:10px;font:inherit;font-size:13px;font-weight:600;padding:8px 12px;border:1px solid var(--hoa);color:var(--hoa);background:var(--trang);border-radius:999px;cursor:pointer}
.lich-bazi:hover{background:var(--hoa-nhat)}
@media (max-width:640px){.lc-am{display:none}.lich-pop{position:fixed;left:16px;right:16px;top:64px;width:auto;max-height:calc(100vh - 80px);overflow:auto}}
@media (max-width:420px){.dat-nho{display:none}.ten-trang{font-size:18px}}
dialog.bazi{width:min(640px,calc(100vw - 24px));max-height:calc(100vh - 40px);margin:auto;border:1px solid var(--vien);border-top:4px solid var(--hoa);border-radius:16px;padding:18px;background:var(--trang);color:var(--chu);box-shadow:0 20px 60px rgba(0,0,0,.25)}
dialog.bazi::backdrop{background:rgba(20,30,22,.45)}
.bz-head{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:12px}
.bz-head h2{font-size:22px}
.iconbtn{border:1px solid var(--vien);background:var(--trang);color:var(--chu);border-radius:999px;width:38px;height:38px;cursor:pointer;font-size:16px}
.iconbtn:hover{border-color:var(--hoa);color:var(--hoa)}
.cua-toi{display:flex;gap:12px;align-items:flex-start;background:var(--nen);border-left:5px solid var(--hoa);border-radius:12px;padding:12px 14px;margin-bottom:20px;font-size:15px}
.seg{display:inline-flex;background:var(--nen);border-radius:12px;padding:4px;gap:4px;margin-bottom:12px}
.seg button{font:inherit;font-size:15px;font-weight:600;border:0;background:transparent;color:var(--chu);border-radius:9px;padding:8px 14px;cursor:pointer;min-height:40px}
.seg button[aria-pressed="true"]{background:var(--chinh);color:#fff}
.bz-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin-bottom:10px}
.bz-row.hai{grid-template-columns:2fr 1fr}
.bz-row label,.bz-chk{display:flex;flex-direction:column;gap:4px;font-size:14px;font-weight:600;color:var(--chinh)}
.bz-chk{flex-direction:row;align-items:center;gap:8px;margin-bottom:10px}
.bz-row select,.bz-row input{font:inherit;font-size:16px;font-weight:500;color:var(--chu);background:var(--nen);border:2px solid transparent;border-radius:10px;padding:10px;width:100%;min-width:0}
.bz-row select:focus,.bz-row input:focus{outline:none;border-color:var(--xanh-mam)}
.bz-ghi{font-size:14px;color:var(--chinh);margin:4px 0 14px}
.bz-out{margin-top:20px;display:flex;flex-direction:column;gap:16px}
.bz-out:empty{display:none}
.bz-sec{border-top:1px solid var(--vien);padding-top:14px}
.bz-sec h3{font-family:Inter,sans-serif;font-size:16px;color:var(--chinh);margin-bottom:8px}
.bz-sec .ghi{font-size:14px;color:var(--chinh);margin-top:6px}
.bz-big{font-size:17px}
.tutru{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:8px}
.tru{display:flex;flex-direction:column;align-items:center;background:var(--nen);border-radius:12px;padding:8px 2px;text-align:center}
.tru small{font-size:12px;color:var(--chinh)}
.tru b{font-family:Lora,serif;font-size:20px;line-height:1.3}
.tru i{font-style:normal;font-size:12px;color:var(--chinh)}
.bz-meter{height:10px;border-radius:5px;background:var(--nen);overflow:hidden;position:relative;margin:8px 0 4px}
.bz-meter i{position:absolute;inset:0 auto 0 0;background:var(--chinh)}
.bz-meter b{position:absolute;left:50%;top:0;bottom:0;width:2px;background:var(--chu);opacity:.5}
.bz-bars{display:flex;flex-direction:column;gap:6px}
.bz-bar{display:grid;grid-template-columns:52px minmax(0,1fr) 112px;gap:8px;align-items:center;font-size:14px}
.bz-bar span{height:9px;border-radius:5px;background:var(--nen);overflow:hidden}
.bz-bar span i{display:block;height:100%;border-radius:5px;background:currentColor}
.bz-bar small{color:var(--chinh);text-align:right}
.bz-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:10px}
.bz-card{border:2px solid var(--vien);border-radius:14px;padding:12px 14px}
.bz-card small{display:block;color:var(--chinh);font-size:13px}
.bz-card b{font-family:Lora,serif;font-size:24px}
.bz-card p{font-size:13px;color:var(--chinh);margin-top:2px}
.bz-card.dung{border-color:var(--chinh);background:var(--nen)} .bz-card.hy{border-color:var(--xanh-mam)} .bz-card.ky{border-color:var(--hoa);background:var(--hoa-nhat)}
.bz-out ul{padding-left:20px;display:flex;flex-direction:column;gap:4px;font-size:15px}
.moc{color:#2C7A47}.hoa{color:#C0392B}.tho{color:#8A5A12}.kim{color:#6B7280}.thuy{color:#1F5FAF}
.hh{display:inline-block;border:1px solid currentColor;border-radius:999px;padding:0 8px;font-size:13px;font-weight:600}
@media (max-width:420px){.bz-bar{grid-template-columns:44px minmax(0,1fr) 92px;font-size:13px}.tru b{font-size:18px}}

/* Chân trang */
.chan{background:var(--lom);color:var(--chu);padding:40px 0;font-size:15px}
.chan .ten-trang{color:var(--chinh);margin-bottom:10px}
.chan a{color:var(--chinh);font-weight:600}
.chan .lien-he{display:flex;gap:16px;flex-wrap:wrap;margin-top:8px}
.chan .nho{opacity:.7;margin-top:16px;font-size:13px}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.nut{transition:none}}