/* SÁCH LẬT — bảng điều khiển */

:root{
  --nen:#0f1319;
  --the:#171c25;
  --the2:#1e2530;
  --vien:rgba(255,255,255,.11);
  --chu:#eef1f6;
  --mo:rgba(238,241,246,.58);
  --vang:#e8b923;
  --do:#ff6b6b;
  --xanh:#4ade80;
  color-scheme:dark;
}
*{box-sizing:border-box}
/* `display` trong CSS mạnh hơn thuộc tính hidden của HTML — không có dòng này thì
   trình sửa (#sua có display:flex) và màn đăng nhập (display:grid) vẫn hiện dù đã đặt hidden */
[hidden]{display:none!important}
body{
  margin:0;background:var(--nen);color:var(--chu);min-height:100vh;
  font-family:system-ui,-apple-system,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;
  font-size:15px;line-height:1.5;
}
h1{margin:0 0 4px;font-size:24px}
input,select,textarea,button{font-family:inherit;font-size:14px}
input,select,textarea{
  width:100%;padding:10px 13px;border-radius:10px;border:1px solid var(--vien);
  background:rgba(0,0,0,.28);color:var(--chu);outline:none;transition:border-color .15s
}
input:focus,select:focus,textarea:focus{border-color:var(--vang)}
input[type=color]{padding:3px;height:40px;cursor:pointer}
input[type=checkbox]{width:auto}
textarea{resize:vertical;font-family:ui-monospace,Menlo,Consolas,monospace;font-size:12px;line-height:1.55}
button{cursor:pointer;border:0;border-radius:10px;transition:filter .15s,background .15s}
.chinh{background:var(--vang);color:#20160a;font-weight:700;padding:10px 18px}
.chinh:hover{filter:brightness(1.08)}
.phu{background:rgba(255,255,255,.09);color:var(--chu);padding:10px 15px;border:1px solid var(--vien)}
.phu:hover{background:rgba(255,255,255,.16)}
.rong{width:100%}
.nut-x{background:transparent;color:var(--chu);font-size:17px;width:34px;height:34px;opacity:.7}
.nut-x:hover{background:rgba(255,255,255,.12);opacity:1}
.trong{text-align:center;padding:44px 20px;color:var(--mo);line-height:1.7}
.loi{color:var(--do);font-size:13px;min-height:20px;margin-top:10px;text-align:center}

/* ── đăng nhập ── */
#man-dang-nhap{min-height:100vh;display:grid;place-items:center;padding:24px;
  background:radial-gradient(1000px 620px at 50% -8%,#243b55,transparent),var(--nen)}
#form-dang-nhap{width:min(370px,100%);background:var(--the);border:1px solid var(--vien);
  border-radius:20px;padding:34px 30px;text-align:center;box-shadow:0 28px 70px rgba(0,0,0,.5)}
.dn-icon{font-size:42px;margin-bottom:8px}
#form-dang-nhap p{margin:0 0 22px;color:var(--mo);font-size:13.5px}
#form-dang-nhap input{text-align:center;margin-bottom:12px}

/* ── khung ── */
#dinh{position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;
  padding:13px 22px;background:rgba(15,19,25,.92);backdrop-filter:blur(12px);border-bottom:1px solid var(--vien)}
.hieu{font-size:17px}
.dinh-phai{display:flex;gap:8px}
#than{max-width:1180px;margin:0 auto;padding:26px 22px 70px}

/* ── thẻ số ── */
.the-so{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-bottom:22px}
.the-so .o{background:var(--the);border:1px solid var(--vien);border-radius:15px;padding:18px 20px}
.the-so span{display:block;font-size:29px;font-weight:800;line-height:1.1;color:var(--vang)}
.the-so small{color:var(--mo);font-size:12.5px;text-transform:uppercase;letter-spacing:.6px}

/* ── ô thả tệp ── */
#tha{border:2px dashed rgba(255,255,255,.22);border-radius:17px;padding:34px 20px;text-align:center;
  cursor:pointer;transition:border-color .2s,background .2s;display:flex;align-items:center;
  justify-content:center;gap:16px;background:rgba(255,255,255,.02)}
#tha:hover,#tha.trong-vung{border-color:var(--vang);background:rgba(232,185,35,.09)}
.tha-icon{font-size:32px}
.tha-chu{text-align:left}
.tha-chu b{display:block;font-size:15.5px}
.tha-chu span{color:var(--mo);font-size:13px}

#hang-doi{margin-top:14px;display:grid;gap:9px}
.viec{background:var(--the);border:1px solid var(--vien);border-radius:12px;padding:12px 15px}
.viec .d{display:flex;justify-content:space-between;gap:12px;font-size:13.5px;margin-bottom:8px}
.viec .d i{font-style:normal;color:var(--mo);white-space:nowrap}
.viec .t{height:5px;border-radius:5px;background:rgba(255,255,255,.13);overflow:hidden}
.viec .t b{display:block;height:100%;width:0;background:var(--vang);transition:width .2s}
.viec.hong{border-color:var(--do)}
.viec.hong .t b{background:var(--do)}
.viec.xong .t b{background:var(--xanh)}

/* ── lọc ── */
.hang-tim{display:flex;gap:10px;margin:26px 0 15px}
#o-loc{flex:1}
#o-sap{width:auto;min-width:170px}

/* ── lưới sách ── */
#luoi{display:grid;grid-template-columns:repeat(auto-fill,minmax(215px,1fr));gap:17px}
.the{background:var(--the);border:1px solid var(--vien);border-radius:15px;overflow:hidden;
  display:flex;flex-direction:column;transition:transform .16s,border-color .16s}
.the:hover{transform:translateY(-3px);border-color:rgba(232,185,35,.5)}
/* Bìa hiện TRỌN VẸN (contain) — sách trang ngang mà cắt theo khung dọc thì mất nửa nội dung.
   Phía sau đặt chính tấm bìa làm nền mờ để không còn dải trống thô. */
.the-bia{position:relative;aspect-ratio:.78;background:var(--the2);display:grid;place-items:center;overflow:hidden}
.the-bia img{position:absolute;inset:0;width:100%;height:100%;display:block}
.the-bia .mo{object-fit:cover;filter:blur(20px) brightness(.45);transform:scale(1.2)}
.the-bia .ro{object-fit:contain}
.the-bia .khong{font-size:36px;opacity:.28}
.the-bia .co{position:absolute;top:9px;left:9px;display:flex;gap:5px}
.nhan{background:rgba(0,0,0,.72);border:1px solid var(--vien);padding:2px 8px;border-radius:20px;
  font-size:11px;font-weight:600;backdrop-filter:blur(4px)}
.nhan.an{background:rgba(255,107,107,.9);border-color:transparent;color:#fff}
.nhan.khoa{background:rgba(232,185,35,.92);border-color:transparent;color:#20160a}
.the-tt{padding:12px 14px;flex:1;display:flex;flex-direction:column;gap:5px}
.the-tt b{font-size:14.5px;line-height:1.35;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;
  overflow:hidden}
.the-tt small{color:var(--mo);font-size:12px}
/* 4 nút chia đều 2 cột — nhét 5 nút một hàng thì nút cuối rớt xuống, thẻ cao thấp so le */
.the-nut{display:grid;grid-template-columns:1fr 1fr;gap:5px;padding:0 10px 11px}
.the-nut button,.the-nut a{text-align:center;text-decoration:none;
  background:rgba(255,255,255,.08);color:var(--chu);border:1px solid var(--vien);border-radius:8px;
  padding:7px 4px;font-size:12px;font-weight:600}
.the-nut button:hover,.the-nut a:hover{background:rgba(255,255,255,.17)}
/* nút xoá nằm góc bìa, chỉ hiện khi rê chuột — tránh bấm nhầm */
.the-bia .xoa{position:absolute;top:8px;right:8px;z-index:2;width:28px;height:28px;border-radius:50%;
  background:rgba(0,0,0,.62);color:#fff;border:1px solid var(--vien);font-size:13px;line-height:1;
  opacity:0;transition:opacity .16s,background .16s;backdrop-filter:blur(4px)}
.the:hover .the-bia .xoa{opacity:1}
.the-bia .xoa:hover{background:var(--do);border-color:var(--do)}

/* ── lớp phủ + trình sửa ── */
#phu{position:fixed;inset:0;z-index:40;background:rgba(0,0,0,.62);backdrop-filter:blur(3px)}
#sua{position:fixed;z-index:50;top:0;right:0;bottom:0;width:min(430px,100vw);background:var(--the);
  border-left:1px solid var(--vien);display:flex;flex-direction:column;box-shadow:-24px 0 60px rgba(0,0,0,.5)}
.sua-dinh{display:flex;align-items:center;justify-content:space-between;padding:14px 12px 14px 20px;
  border-bottom:1px solid var(--vien)}
.sua-tab{display:flex;gap:3px;padding:9px 12px;border-bottom:1px solid var(--vien);overflow-x:auto}
.tab{background:transparent;color:var(--mo);padding:7px 12px;font-size:13px;font-weight:600;white-space:nowrap}
.tab:hover{background:rgba(255,255,255,.08);color:var(--chu)}
.tab.bat{background:var(--vang);color:#20160a}
.sua-than{flex:1;overflow-y:auto;padding:18px 20px 24px}
.sua-day{display:flex;gap:9px;padding:13px 20px;border-top:1px solid var(--vien)}
.sua-day .chinh{flex:1}
.sua-than label{display:block;font-size:11.5px;text-transform:uppercase;letter-spacing:.6px;color:var(--mo);
  margin:16px 0 6px;font-weight:700}
.sua-than label i{text-transform:none;letter-spacing:0;font-style:normal;font-weight:400;opacity:.8}
.sua-than>.bang-tab>label:first-child{margin-top:0}
.doi{display:flex;gap:9px;align-items:flex-end}
.doi>div{flex:1}
.doi .phu{white-space:nowrap;flex:0 0 auto}
.cong-tac{display:flex;align-items:center;gap:9px;padding:9px 0}
.cong-tac label{margin:0;text-transform:none;letter-spacing:0;font-size:13.5px;color:var(--chu);
  font-weight:400;cursor:pointer}
.cong-tac input{flex:0 0 auto;width:17px;height:17px;accent-color:var(--vang);cursor:pointer}

/* ── hộp thoại ── */
.hop{position:fixed;z-index:50;top:50%;left:50%;transform:translate(-50%,-50%);width:min(440px,93vw);
  max-height:88vh;overflow:auto;background:var(--the);border:1px solid var(--vien);border-radius:18px;
  box-shadow:0 30px 70px rgba(0,0,0,.6)}
.hop-dinh{display:flex;align-items:center;justify-content:space-between;padding:14px 12px 14px 20px;
  border-bottom:1px solid var(--vien)}
.hop-than{padding:18px 20px 22px}
.hop-than label{display:block;font-size:11.5px;text-transform:uppercase;letter-spacing:.6px;color:var(--mo);
  margin:15px 0 6px;font-weight:700}
.hop-than label:first-child{margin-top:0}
.doi-nut{display:flex;gap:8px}
.phu.giua{flex:1;text-align:center;text-decoration:none;display:block}
.qr-hang{display:flex;align-items:center;gap:14px}
#cs-qr{background:#fff;padding:8px;border-radius:10px;line-height:0}
#cs-qr img{display:block;width:104px;height:104px;image-rendering:pixelated}

/* ── thống kê ── */
.tk-tong{text-align:center;padding:14px 0 4px}
.tk-tong span{display:block;font-size:38px;font-weight:800;color:var(--vang);line-height:1}
.tk-tong small{color:var(--mo);font-size:12.5px;text-transform:uppercase;letter-spacing:.6px}
.cot{display:flex;align-items:flex-end;gap:3px;height:110px;padding:8px;background:rgba(0,0,0,.24);
  border-radius:11px;border:1px solid var(--vien)}
.cot i{flex:1;background:var(--vang);border-radius:3px 3px 0 0;min-height:2px;opacity:.85;position:relative}
.cot i:hover{opacity:1}
.cot i::after{content:attr(data-tip);position:absolute;bottom:100%;left:50%;transform:translateX(-50%);
  background:#000;color:#fff;font-size:11px;font-style:normal;padding:3px 7px;border-radius:6px;
  white-space:nowrap;display:none;margin-bottom:5px;z-index:2}
.cot i:hover::after{display:block}
.tk-d{display:flex;justify-content:space-between;align-items:center;padding:7px 11px;
  background:rgba(255,255,255,.05);border-radius:9px;margin-bottom:5px;font-size:13.5px}
.tk-d b{color:var(--vang)}

/* ── người dùng ── */
#nguoi-dung{position:fixed;z-index:50;top:0;right:0;bottom:0;width:min(430px,100vw);background:var(--the);
  border-left:1px solid var(--vien);display:flex;flex-direction:column;box-shadow:-24px 0 60px rgba(0,0,0,.5)}
.ghi-nho{margin:0 0 16px;font-size:13px;color:var(--mo);line-height:1.6}
.nd-the{background:var(--the2);border:1px solid var(--vien);border-radius:13px;padding:13px 15px;margin-bottom:10px}
.nd-the.tat{opacity:.55}
.nd-d{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:5px}
.nd-d b{font-size:14.5px}
.nd-the small{display:block;color:var(--mo);font-size:12px;line-height:1.6}
.nd-the small.ghi{opacity:.72;font-style:italic}
.nd-nut{display:flex;gap:6px;margin-top:10px;flex-wrap:wrap}
.nd-nut .phu{padding:6px 11px;font-size:12px;border-radius:8px}
.nd-nut .phu.do:hover{background:rgba(255,107,107,.24);border-color:var(--do)}
.nd-nut .ghi{font-size:12px;color:var(--mo);font-style:italic}
#nd-them{border:1px dashed var(--vien);border-radius:13px;padding:12px 15px;margin-top:6px}
#nd-them summary{cursor:pointer;font-weight:700;font-size:13.5px;color:var(--vang);list-style:none}
#nd-them summary::-webkit-details-marker{display:none}
#nd-them[open] summary{margin-bottom:6px}
.nhan.chu{background:rgba(90,150,255,.85);border-color:transparent;color:#fff}
.cong-tac.nho{gap:7px;padding:0;white-space:nowrap}
.cong-tac.nho span{font-size:13px;color:var(--mo)}

/* ── báo nhanh ── */
#banh-mi{position:fixed;left:50%;bottom:26px;transform:translateX(-50%);z-index:60;background:#000;
  border:1px solid var(--vien);padding:11px 20px;border-radius:12px;font-size:14px;
  box-shadow:0 10px 30px rgba(0,0,0,.5);animation:len .22s}
@keyframes len{from{opacity:0;transform:translateX(-50%) translateY(9px)}}

@media (max-width:640px){
  #than{padding:18px 14px 60px}
  .the-so{grid-template-columns:1fr;gap:10px}
  .the-so .o{display:flex;align-items:baseline;gap:10px;padding:13px 16px}
  .the-so span{font-size:22px}
  #tha{flex-direction:column;padding:26px 16px}
  .tha-chu{text-align:center}
  .hang-tim{flex-direction:column}
  #o-sap{width:100%}
  #luoi{grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:12px}
}