/* Admin AndyTran — nen SANG chu TOI.
   Ban cu la nen toi (#0f1420); doi sang de doc lau khong moi mat va in ra duoc.
   Moi ten class giu NGUYEN, chi doi mau/khoang cach — khong phai sua file .php. */
:root{
  color-scheme:light;
  --bg:#f4f6fa; --panel:#fff; --line:#dbe1ea; --line2:#e9edf3;
  --ink:#1b2333; --ink2:#4a5568; --ink3:#6b7789;
  --blue:#1d4ed8; --blue-bg:#e8efff;
  --green:#15803d; --green-bg:#dcfce7;
  --red:#b91c1c; --red-bg:#fde8e8;
  --amber:#b45309; --amber-bg:#fdf1dc;
}
*{box-sizing:border-box}
body{margin:0;font-family:-apple-system,Segoe UI,Roboto,Arial,sans-serif;background:var(--bg);color:var(--ink);font-size:14.5px;line-height:1.5}
a{color:var(--blue);text-decoration:none}
a:hover{text-decoration:underline}
code{background:#eef2f8;padding:1px 5px;border-radius:4px;color:var(--amber);font-family:Consolas,Menlo,monospace}
.mono{font-family:Consolas,Menlo,monospace}
.nowrap{white-space:nowrap}

header{display:flex;align-items:center;gap:20px;background:var(--panel);border-bottom:1px solid var(--line);padding:10px 20px;position:sticky;top:0;z-index:5;box-shadow:0 1px 3px rgba(20,30,60,.05)}
header .brand{font-weight:700;color:var(--ink);letter-spacing:.5px}
header nav{display:flex;gap:6px;flex:1}
header nav a{padding:7px 14px;border-radius:8px;color:var(--ink2)}
header nav a:hover{background:#f1f4f9;text-decoration:none}
header nav a.on{background:var(--blue-bg);color:var(--blue);font-weight:600}
/* "Thoat" la anh em cua <nav> (khong nam trong no) — xem head() trong inc.php. */
header .out{margin-left:auto;color:var(--red);padding:7px 12px;border-radius:8px;white-space:nowrap}
header .out:hover{background:var(--red-bg);text-decoration:none}

main{max-width:1140px;margin:0 auto;padding:22px 20px 60px}
h1{font-size:21px;margin:6px 0 18px;color:var(--ink)}
h2{font-size:16px;margin:22px 0 12px;color:var(--ink)}
h2:first-of-type{margin-top:0}

.flash{background:var(--green-bg);border:1px solid #9ad5ae;color:#14532d;padding:10px 14px;border-radius:8px;margin-bottom:16px}
.err{background:var(--red-bg);border:1px solid #f0a8a8;color:#7f1d1d;padding:10px 14px;border-radius:8px;margin-bottom:16px}
.note{color:var(--ink3);font-size:12.5px;margin-top:12px;line-height:1.6}

.toolbar{display:flex;gap:12px;align-items:center;margin-bottom:16px;flex-wrap:wrap}
.search{display:flex;gap:8px;flex:1;flex-wrap:wrap}
input,select,textarea,button{font:inherit}
input,select,textarea{background:#fff;border:1px solid #c6cfdc;color:var(--ink);padding:8px 10px;border-radius:8px}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px rgba(29,78,216,.14)}
textarea{width:100%;resize:vertical}
.search input{min-width:200px;flex:1}
.btn{display:inline-block;background:#fff;border:1px solid #c6cfdc;color:#22304a;padding:7px 12px;border-radius:8px;cursor:pointer}
.btn:hover{background:#f1f4f9;text-decoration:none}
.btn.primary{background:var(--blue);border-color:var(--blue);color:#fff}
.btn.primary:hover{background:#1a44bd}
.btn.danger{background:#c02636;border-color:#c02636;color:#fff}
.btn.danger:hover{background:#a51f2d}
button{cursor:pointer}
form.inline{display:inline}

table.grid{width:100%;border-collapse:collapse;background:var(--panel);border:1px solid var(--line);border-radius:10px;overflow:hidden}
.grid th,.grid td{padding:9px 11px;border-bottom:1px solid var(--line2);text-align:left;vertical-align:middle}
.grid th{background:#eff3f9;color:#465268;font-weight:700;font-size:12px;text-transform:uppercase;letter-spacing:.4px}
.grid tbody tr:nth-child(even) td{background:#fafbfe}
.grid tr:last-child td{border-bottom:none}
.grid tr:hover td{background:#eef4ff}
.empty{text-align:center;color:var(--ink3);padding:22px}
.actions{display:flex;gap:6px;white-space:nowrap;flex-wrap:wrap}
/* Trong bang: nut nho lai de "Sua"/"Xoa" (va +7d/+30d/∞) du cho tren mot dong.
   VAN de flex-wrap:wrap — table.grid co overflow:hidden, ep nowrap la co ngay
   truong hop cot bi cat mat o may nhieu cot (index.php co 10 cot). */
.grid .actions .btn{padding:4px 8px;font-size:11.5px}
.muted{color:#8994a5}
.grid .btn{padding:5px 9px;font-size:12px}
.ua{max-width:280px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--ink2)}

.pill{border:none;border-radius:20px;padding:4px 12px;font-size:12px;font-weight:700;cursor:pointer}
.pill.on{background:var(--green-bg);color:#14532d}
.pill.off{background:var(--red-bg);color:#7f1d1d}
.perp{color:var(--blue);font-weight:600}
.ok{color:var(--green);font-weight:600}
.exp{color:var(--red);font-weight:600}

.bdg{display:inline-block;padding:2px 8px;border-radius:6px;font-size:11px;font-weight:700}
.bdg.ok{background:var(--green-bg);color:#14532d}
.bdg.fail{background:var(--amber-bg);color:#7c4508}
.bdg.ban{background:var(--red-bg);color:#7f1d1d}
.cols{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:16px}
.rowform{display:flex;gap:8px;margin-bottom:14px;flex-wrap:wrap}
.rowform input{flex:1;min-width:120px}

/* Danh sach o tich (chon server cho key) — moi dong mot server, co duong ke mo
   de doc nhanh. Cac label nay nam trong .card chu khong trong .cardform. */
.card label.chk{display:flex;flex-direction:row;align-items:center;flex-wrap:wrap;gap:8px;row-gap:2px;padding:7px 2px;border-bottom:1px dashed var(--line2)}
.card label.chk:last-child{border-bottom:none}
.card label.chk:hover{background:#f7f9fd}
.card label.chk .mono{color:var(--ink2);overflow-wrap:anywhere}
.card label.chk input[type=checkbox]{flex:0 0 auto}
.card p.empty{margin:0}

.cardform{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:20px;max-width:820px;display:flex;flex-direction:column;gap:14px}
.cardform label{display:flex;flex-direction:column;gap:5px;font-size:13.5px;color:#3b465c;font-weight:600}
.cardform label small{color:var(--ink3);font-weight:400;line-height:1.55}
.cardform .two{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.cardform .chk{flex-direction:row;align-items:center;gap:8px}
/* .cardform label dat flex-direction:column, ma .rad co do uu tien thap hon nen
   truoc day cac dong radio trong "Han dung" bi xep DOC va can giua: o so ngay
   nam duoi chu "Cap". Phai ghi de bang chinh do uu tien .cardform. */
.cardform .rad{flex-direction:row;align-items:center;flex-wrap:wrap;font-weight:400}
.formbtns{display:flex;gap:10px;margin-top:6px}
fieldset.exp{border:1px solid var(--line);border-radius:10px;padding:12px 14px;display:flex;flex-direction:column;gap:8px;color:var(--ink);font-weight:400}
fieldset.exp legend{padding:0 6px;color:#3b465c;font-weight:600}
fieldset.exp .curr{color:var(--ink2);margin-bottom:4px}
.rad{display:flex;align-items:center;gap:8px;color:var(--ink)}

.login-body{display:flex;min-height:100vh;align-items:center;justify-content:center;background:var(--bg)}
form.login{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:28px;width:320px;display:flex;flex-direction:column;gap:14px;box-shadow:0 6px 24px rgba(20,30,60,.08)}
form.login h1{text-align:center;margin:0 0 4px}
form.login label{display:flex;flex-direction:column;gap:6px;font-size:13.5px;color:#3b465c;font-weight:600}
form.login button{background:var(--blue);border:none;color:#fff;padding:10px;border-radius:8px;font-weight:700}
form.login button:hover{background:#1a44bd}

/* ================= may tinh bang: bang nhieu cot thi cho keo ngang ==========
   table.grid binh thuong co overflow:hidden (de bo goc tron), o dai nay phai
   doi thanh block moi keo ngang duoc — khong thi cot bi bop con 1-2 chu. */
@media(min-width:721px) and (max-width:1000px){
  table.grid{display:block;overflow-x:auto;-webkit-overflow-scrolling:touch}
  main{padding:18px 14px 50px}
}

/* ============================ dien thoai ================================== */
@media(max-width:720px){
  .cols{grid-template-columns:1fr}
  .cardform .two{grid-template-columns:1fr}

  main{padding:16px 12px 48px}
  h1{font-size:19px;margin:4px 0 14px}
  h2{font-size:15px;margin:20px 0 10px}

  /* Thanh dieu huong: cuon ngang thay vi tuot xuong dong hoac tran ra ngoai. */
  header{gap:10px;padding:8px 12px}
  header nav{flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none}
  header nav::-webkit-scrollbar{display:none}
  header nav a{padding:7px 10px;white-space:nowrap}
  header .out{padding:7px 8px;flex:0 0 auto}

  /* Vung cham >= 42px, chu input 16px de iOS khong tu zoom khi bam vao o. */
  input,select,textarea{font-size:16px;min-height:42px}
  .btn,button{min-height:42px}
  .grid .btn,.grid button{min-height:34px}

  .toolbar{gap:8px}
  .search{width:100%}
  .search input{min-width:0}
  .toolbar>.btn.primary{width:100%;text-align:center}

  .card{padding:12px}
  .cardform{padding:14px;border-radius:10px;gap:12px}
  fieldset.exp{padding:10px 12px}
  .formbtns .btn{flex:1 1 auto;text-align:center}
  form.login{width:100%;max-width:340px;margin:0 14px;padding:22px}

  /* Bang -> the: moi hang la mot khoi, moi o mot dong "NHAN: gia tri".
     Nhan lay tu data-label cua <td> (o nao khong co thi chi hien gia tri). */
  table.grid{display:block;border:none;background:transparent;border-radius:0;overflow:visible}
  .grid thead{display:none}
  .grid tbody,.grid tr,.grid td{display:block;width:100%}
  .grid tr{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:4px 12px;margin-bottom:12px}
  .grid tbody tr:nth-child(even) td,.grid tr:hover td{background:transparent}
  .grid td{border-bottom:1px dashed var(--line2);padding:9px 0;display:flex;gap:10px;align-items:flex-start;overflow-wrap:anywhere;word-break:break-word}
  .grid tr td:last-child{border-bottom:none}
  .grid td::before{content:attr(data-label);flex:0 0 36%;max-width:36%;color:var(--ink3);font-size:11.5px;font-weight:700;text-transform:uppercase;letter-spacing:.3px;padding-top:2px;word-break:normal}
  .grid td:not([data-label])::before,.grid td[data-label=""]::before{display:none}
  .grid td.empty{display:block;text-align:center;border-bottom:none}
  .grid td.empty::before{display:none}
  .grid td.nowrap{white-space:normal}
  .grid .actions{flex-wrap:wrap}
  /* Chuoi dai khong co dau cach (KEY, ip:port, ten file .json) phai ngat duoc,
     neu khong o flex khong co chieu rong nao nho hon no -> ca trang tran ngang. */
  .grid td .mono,.grid td.mono,.grid td small{overflow-wrap:anywhere}
  .grid .ua{max-width:none;white-space:normal;overflow:visible;text-overflow:clip;word-break:break-all}
}