/* ============================================================================
   Online Free Tools — Admin Panel stylesheet
   Fully responsive: mobile (<=640), tablet (<=1024), laptop & desktop (>=1280)
   ========================================================================== */
:root{
  --bg:#0f1420; --bg2:#151c2c; --panel:#1a2334; --panel2:#20293c; 
  --line:#2b3550; --txt:#e8edf7; --dim:#9aa8c4; --brand:#4f8cff; --brand2:#7c5cff;
  --ok:#22c55e; --warn:#f59e0b; --err:#ef4444; --info:#38bdf8; --radius:14px;
  --shadow:0 10px 30px rgba(0,0,0,.35); --side:262px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{background:linear-gradient(180deg,#0d1220,#0f1420 40%,#0d1220);color:var(--txt);
  font:15px/1.55 system-ui,-apple-system,"Segoe UI",Roboto,Ubuntu,"Helvetica Neue",Arial,sans-serif;
  -webkit-font-smoothing:antialiased;min-height:100vh}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
button,input,select,textarea{font:inherit;color:inherit}
.hidden{display:none !important}

/* ---------- login ---------- */
#login{max-width:420px;margin:7vh auto;padding:28px;background:var(--panel);border:1px solid var(--line);
  border-radius:20px;box-shadow:var(--shadow)}
#login h1{margin:0 0 6px;font-size:22px}
#login p.sub{margin:0 0 22px;color:var(--dim);font-size:13.5px}
.field{margin-bottom:14px}
.field label{display:block;font-size:12.5px;text-transform:uppercase;letter-spacing:.04em;color:var(--dim);margin-bottom:6px}
.input,select.input,textarea.input{width:100%;padding:11px 13px;background:#111a29;border:1px solid var(--line);
  border-radius:10px;outline:none}
.input:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(79,140,255,.16)}
textarea.input{min-height:90px;resize:vertical;font-family:ui-monospace,Menlo,Consolas,monospace;font-size:13px}
.btn{display:inline-flex;align-items:center;gap:7px;padding:9px 15px;border:1px solid var(--line);border-radius:10px;
  background:#1c253a;cursor:pointer;transition:.15s;white-space:nowrap}
.btn:hover{background:#243050;border-color:#3b4a74}
.btn.primary{background:linear-gradient(135deg,var(--brand),var(--brand2));border:none;color:#fff;font-weight:600}
.btn.ok{background:#14532d;border-color:#1c7a44}
.btn.danger{background:#4a1519;border-color:#7f1d1d}
.btn.warn{background:#4a3410;border-color:#8a5b12}
.btn.sm{padding:6px 10px;font-size:13px}
.btn.icononly{padding:7px 9px}
.btn[disabled]{opacity:.5;cursor:not-allowed}

/* ---------- shell ---------- */
#shell{display:none;min-height:100vh}
#shell.on{display:grid;grid-template-columns:var(--side) 1fr;grid-template-rows:auto 1fr}
header.top{grid-column:1/-1;display:flex;align-items:center;gap:14px;padding:10px 16px;background:rgba(15,20,32,.92);
  backdrop-filter:blur(10px);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:40}
.brand{display:flex;align-items:center;gap:10px;font-weight:700}
.brand .dot{width:30px;height:30px;border-radius:9px;background:linear-gradient(135deg,var(--brand),var(--brand2));
  display:grid;place-items:center;font-size:16px}
.brand small{display:block;font-weight:400;color:var(--dim);font-size:11px;letter-spacing:.05em}
.top .spacer{flex:1}
.top .who{font-size:13px;color:var(--dim);text-align:right;line-height:1.25}
.hamb{display:none}
@media(max-width:1024px){
  #shell.on{grid-template-columns:1fr}
  aside.side{position:fixed;top:0;left:0;bottom:0;width:86vw;max-width:330px;z-index:60;transform:translateX(-102%);
    transition:transform .22s ease;box-shadow:var(--shadow)}
  aside.side.open{transform:none}
  .hamb{display:inline-flex}
  .top .who{display:none}
  .scrim{position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:55}
}

/* ---------- sidebar ---------- */
aside.side{background:var(--bg2);border-right:1px solid var(--line);overflow-y:auto;padding:12px 10px 40px;
  height:calc(100vh - 52px);position:sticky;top:52px}
.side-search{margin:0 4px 12px}
.nav-sec{margin-bottom:6px}
.nav-sec>.hd{display:flex;align-items:center;gap:9px;padding:9px 10px;border-radius:10px;cursor:pointer;
  font-weight:600;font-size:14px;user-select:none}
.nav-sec>.hd:hover{background:#1b2438}
.nav-sec>.hd .chev{margin-left:auto;color:var(--dim);transition:.18s}
.nav-sec.open>.hd{background:#1b2438}
.nav-sec.open>.hd .chev{transform:rotate(90deg)}
.nav-sec .items{display:none;padding:2px 0 6px 12px}
.nav-sec.open .items{display:block}
.nav-sec .items a{display:block;padding:6px 10px;border-radius:8px;color:#c5d0e6;font-size:13.5px;border-left:1px solid var(--line);margin-left:6px}
.nav-sec .items a:hover{background:#1e2841;color:#fff;text-decoration:none}
.nav-sec .items a.cur{background:rgba(79,140,255,.16);color:#fff;border-left-color:var(--brand)}
.nav-sec .items a .tag{float:right;font-size:10.5px;color:var(--dim);border:1px solid var(--line);border-radius:6px;padding:0 5px}

/* ---------- main ---------- */
main{padding:20px;min-width:0}
.page-hd{display:flex;align-items:flex-start;gap:14px;flex-wrap:wrap;margin-bottom:16px}
.page-hd h2{margin:0;font-size:21px}
.crumb{color:var(--dim);font-size:12.5px;margin-bottom:4px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:16px;margin-bottom:16px}
.card h3{margin:0 0 12px;font-size:15.5px}
.card h3 .sub{font-weight:400;color:var(--dim);font-size:12.5px}
.grid{display:grid;gap:14px}
.grid.k{grid-template-columns:repeat(auto-fit,minmax(190px,1fr))}
.grid.c2{grid-template-columns:repeat(auto-fit,minmax(320px,1fr))}
.kpi{background:linear-gradient(160deg,#1b2438,#182031);border:1px solid var(--line);border-radius:var(--radius);padding:14px}
.kpi .lab{color:var(--dim);font-size:12px;text-transform:uppercase;letter-spacing:.05em}
.kpi .val{font-size:25px;font-weight:700;margin-top:6px;overflow-wrap:anywhere}
.kpi .hint{color:var(--dim);font-size:12px;margin-top:4px}
.kpi.good .val{color:#8ef0b1}.kpi.bad .val{color:#ff9d9d}.kpi.warn .val{color:#ffd27d}

.toolbar{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-bottom:12px}
.toolbar .grow{flex:1;min-width:180px}
table.tbl{width:100%;border-collapse:collapse;font-size:13.5px}
table.tbl th,table.tbl td{padding:9px 10px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
table.tbl th{color:var(--dim);font-size:12px;text-transform:uppercase;letter-spacing:.04em;cursor:pointer;white-space:nowrap;position:sticky;top:0;background:var(--panel)}
table.tbl tr:hover td{background:#1c2437}
table.tbl td.num{text-align:right;font-variant-numeric:tabular-nums}
.tbl-wrap{overflow:auto;max-height:66vh;border:1px solid var(--line);border-radius:12px}
.pill{display:inline-block;padding:2px 9px;border-radius:999px;font-size:11.5px;border:1px solid var(--line);background:#1b2438}
.pill.ok{background:#123324;border-color:#1f7a45;color:#9ff0be}
.pill.warn{background:#3a2c0c;border-color:#8a5b12;color:#ffd88a}
.pill.err{background:#3d1417;border-color:#7f1d1d;color:#ffb0b0}
.pill.info{background:#12283a;border-color:#1e5878;color:#a9dcff}
.pill.dim{color:var(--dim)}
.pager{display:flex;gap:8px;align-items:center;margin-top:12px;flex-wrap:wrap;color:var(--dim);font-size:13px}
.form-grid{display:grid;gap:14px;grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}
.form-grid .full{grid-column:1/-1}
.bool{display:flex;align-items:center;gap:9px;padding-top:22px}
.mono{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:12.5px}
pre.code{background:#0c1220;border:1px solid var(--line);border-radius:12px;padding:13px;overflow:auto;max-height:60vh;font-size:12.5px}
.bar{height:9px;border-radius:999px;background:#0e1626;border:1px solid var(--line);overflow:hidden}
.bar>i{display:block;height:100%;background:linear-gradient(90deg,var(--brand),var(--brand2))}
.hint{color:var(--dim);font-size:12.5px}
.chks{display:grid;gap:8px}
.chk{display:flex;gap:10px;align-items:flex-start;padding:9px 11px;border:1px solid var(--line);border-radius:10px;background:#182031}
.chk .st{width:20px;text-align:center}
.tree{font-size:13.5px}
.tree .row{display:flex;gap:10px;padding:5px 0;border-bottom:1px dashed #232d47}
.tree .row .k{color:var(--dim);min-width:190px;flex:0 0 auto}
.tree .row .v{overflow-wrap:anywhere}
details.sec{border:1px solid var(--line);border-radius:12px;padding:10px 12px;margin-bottom:10px;background:#182031}
details.sec>summary{cursor:pointer;font-weight:600}
.tabs{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:12px}
.tabs button{border:1px solid var(--line);background:#182031;color:var(--dim);padding:6px 13px;border-radius:999px;cursor:pointer}
.tabs button.on{background:rgba(79,140,255,.18);color:#fff;border-color:var(--brand)}
.toast-wrap{position:fixed;right:16px;bottom:16px;display:flex;flex-direction:column;gap:9px;z-index:90;max-width:min(420px,92vw)}
.toast{background:#1b2438;border:1px solid var(--line);border-left:4px solid var(--brand);border-radius:12px;padding:11px 13px;
  box-shadow:var(--shadow);font-size:13.5px;animation:in .18s ease}
.toast.ok{border-left-color:var(--ok)}.toast.err{border-left-color:var(--err)}.toast.warn{border-left-color:var(--warn)}
@keyframes in{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
.modal{position:fixed;inset:0;background:rgba(4,7,14,.66);display:grid;place-items:center;z-index:100;padding:16px}
.modal .box{background:var(--panel);border:1px solid var(--line);border-radius:16px;max-width:760px;width:100%;
  max-height:88vh;overflow:auto;box-shadow:var(--shadow);padding:18px}
.modal .box h3{margin:0 0 12px}
.sep{height:1px;background:var(--line);margin:14px 0}
.rowflex{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.right{margin-left:auto}
.small{font-size:12.5px;color:var(--dim)}
.spinner{width:16px;height:16px;border:2px solid #3a4767;border-top-color:var(--brand);border-radius:50%;display:inline-block;
  animation:sp .7s linear infinite;vertical-align:-3px}
@keyframes sp{to{transform:rotate(360deg)}}
#loading{position:fixed;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--brand),var(--brand2));
  transform-origin:0 50%;animation:ld 1.1s ease infinite;z-index:200;display:none}
#loading.on{display:block}
@keyframes ld{0%{transform:scaleX(.05)}50%{transform:scaleX(.6)}100%{transform:scaleX(.95)}}
footer.foot{color:var(--dim);font-size:12px;padding:8px 4px 30px}
@media (max-width:640px){
  main{padding:14px}
  .page-hd h2{font-size:18px}
  .kpi .val{font-size:21px}
  table.tbl th,table.tbl td{padding:8px}
  .modal .box{padding:14px;border-radius:14px}
}
@media print{
  aside.side,header.top,.toolbar,.pager,footer.foot,.toast-wrap,.no-print{display:none !important}
  body{background:#fff;color:#000}
  .card,.tbl-wrap{border-color:#999;box-shadow:none}
  table.tbl th{background:#eee;color:#000}
  #shell.on{display:block}
}