:root{
  --bg:#05060c;
  --bg2:#0a0d1a;
  --panel:rgba(18,22,38,.72);
  --panel-line:rgba(120,140,200,.16);
  --text:#e7ecff;
  --muted:#8a93b8;
  --cyan:#27e3ff;
  --magenta:#ff4ddb;
  --amber:#ffc23d;
  --green:#3dffa6;
  --red:#ff5874;
  --radius:18px;
  --mono:"JetBrains Mono","Cascadia Code",ui-monospace,"Consolas",monospace;
  --sans:"Inter","Segoe UI",system-ui,-apple-system,sans-serif;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:var(--sans);
  background:var(--bg);
  color:var(--text);
  min-height:100vh;
  overflow-x:hidden;
  position:relative;
}

/* ---------- animated background ---------- */
.bg-grid{
  position:fixed;inset:0;z-index:-2;
  background:
    linear-gradient(transparent 0 39px, rgba(80,110,200,.05) 39px 40px),
    linear-gradient(90deg, transparent 0 39px, rgba(80,110,200,.05) 39px 40px),
    radial-gradient(circle at 50% -10%, #131a36 0%, var(--bg) 55%);
  background-size:40px 40px,40px 40px,100% 100%;
  animation:gridpan 24s linear infinite;
}
@keyframes gridpan{from{background-position:0 0,0 0,0 0}to{background-position:0 400px,400px 0,0 0}}
.bg-glow{
  position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:
    radial-gradient(420px 280px at 12% 18%, rgba(39,227,255,.16), transparent 70%),
    radial-gradient(460px 300px at 88% 22%, rgba(255,77,219,.14), transparent 70%),
    radial-gradient(520px 340px at 50% 110%, rgba(255,194,61,.10), transparent 70%);
  animation:floaty 14s ease-in-out infinite alternate;
}
@keyframes floaty{from{transform:translateY(-10px)}to{transform:translateY(14px)}}

/* ---------- topbar ---------- */
.topbar{
  display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap;
  padding:22px 34px;
}
.brand{display:flex;align-items:center;gap:16px}
.logo{
  width:54px;height:54px;border-radius:16px;display:grid;place-items:center;
  background:linear-gradient(135deg,rgba(39,227,255,.25),rgba(255,77,219,.25));
  border:1px solid rgba(120,200,255,.35);
  box-shadow:0 0 28px rgba(39,227,255,.35),inset 0 0 18px rgba(255,77,219,.18);
}
.logo-mark{font-size:26px;color:#fff;text-shadow:0 0 14px var(--cyan);animation:spin 6s linear infinite}
.brand-logo{height:52px;width:auto;display:block;filter:drop-shadow(0 0 10px rgba(39,227,255,.30))}
@keyframes spin{to{transform:rotate(360deg)}}
.brand-text h1{margin:0;font-size:30px;font-weight:800;letter-spacing:.5px}
.brand-text h1 span{
  background:linear-gradient(90deg,var(--cyan),var(--magenta));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.brand-text p{margin:2px 0 0;font-size:13px;color:var(--muted);letter-spacing:1.5px;text-transform:uppercase}

.port-panel{display:flex;flex-direction:column;gap:8px;align-items:flex-end}
.port-status{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted)}
.dot{width:10px;height:10px;border-radius:50%;background:var(--red);box-shadow:0 0 10px var(--red);transition:.3s}
.dot.on{background:var(--green);box-shadow:0 0 12px var(--green)}
.port-select-wrap{display:flex;gap:8px}
.port-select{
  min-width:230px;padding:10px 14px;border-radius:12px;font-family:var(--mono);font-size:13px;
  background:var(--panel);color:var(--text);border:1px solid var(--panel-line);outline:none;
}
.port-select:focus{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(39,227,255,.15)}

.btn-ghost{
  background:var(--panel);border:1px solid var(--panel-line);color:var(--text);
  border-radius:12px;padding:10px 14px;cursor:pointer;font-size:15px;transition:.2s;
}
.btn-ghost:hover{border-color:var(--cyan);color:var(--cyan);box-shadow:0 0 14px rgba(39,227,255,.25)}
.btn-ghost.small{padding:5px 12px;font-size:12px}
.btn-stop{padding:5px 14px;font-size:12px;font-weight:700;border-radius:12px;cursor:pointer;
  background:rgba(255,88,116,.12);color:var(--red);border:1px solid var(--red);transition:.2s}
.btn-stop:hover{background:var(--red);color:#fff;box-shadow:0 0 16px rgba(255,88,116,.5)}
.btn-stop[hidden]{display:none}

/* ---------- host notice (shown when viewing the central machine remotely) ---------- */
.host-notice{
  display:flex;align-items:flex-start;gap:13px;margin:6px 34px 0;padding:14px 18px;border-radius:14px;
  background:linear-gradient(120deg,rgba(255,194,61,.12),rgba(255,77,219,.08));
  border:1px solid rgba(255,194,61,.45);box-shadow:0 0 22px rgba(255,194,61,.12);
}
.host-notice[hidden]{display:none}
.hn-ico{font-size:22px;line-height:1.2;filter:drop-shadow(0 0 8px var(--amber))}
.hn-text{flex:1;font-size:13.5px;line-height:1.6;color:var(--text)}
.hn-text code{font-family:var(--mono);font-size:12px;color:var(--amber);
  background:rgba(255,194,61,.12);padding:1px 6px;border-radius:5px}
.hn-dl{display:inline-block;margin-top:8px;padding:8px 16px;border-radius:10px;
  font-size:13px;font-weight:700;text-decoration:none;color:#06121a;
  background:linear-gradient(90deg,var(--cyan),var(--green));
  box-shadow:0 4px 16px rgba(39,227,255,.35);transition:.18s}
.hn-dl:hover{transform:translateY(-1px);box-shadow:0 6px 22px rgba(39,227,255,.55)}
.hn-close{background:transparent;border:none;color:var(--muted);font-size:16px;cursor:pointer;
  padding:2px 6px;border-radius:8px;transition:.18s}
.hn-close:hover{color:var(--text);background:rgba(255,255,255,.08)}

/* ---------- source bar ---------- */
.source-bar{display:flex;align-items:center;gap:14px;flex-wrap:wrap;
  margin:4px 34px 0;padding:12px 16px;border-radius:14px;
  background:var(--panel);border:1px solid var(--panel-line)}
.src-label{font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:1px}
.src-toggle{display:flex;gap:0;border:1px solid var(--panel-line);border-radius:11px;overflow:hidden}
.src-btn{padding:8px 16px;font-size:13px;background:transparent;color:var(--muted);border:none;cursor:pointer;transition:.2s}
.src-btn.active{background:linear-gradient(120deg,rgba(39,227,255,.22),rgba(255,77,219,.18));color:var(--text)}
.src-btn:hover:not(.active){color:var(--text)}
.remote-fields{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.remote-fields[hidden]{display:none}
.remote-input{padding:8px 12px;border-radius:10px;font-family:var(--mono);font-size:12.5px;
  background:rgba(8,11,22,.7);color:var(--text);border:1px solid var(--panel-line);outline:none;min-width:220px}
.remote-input.mini-in{min-width:110px}
.remote-input:focus{border-color:var(--cyan)}
.rstatus{font-size:12px;font-family:var(--mono)}
.rstatus.ok{color:var(--green)}
.rstatus.err{color:var(--red)}

/* ---------- cards ---------- */
.cards{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));
  gap:22px;padding:8px 34px 14px;
}
.card{
  position:relative;border-radius:var(--radius);padding:22px;
  background:var(--panel);backdrop-filter:blur(14px);
  border:1px solid var(--panel-line);
  box-shadow:0 18px 50px rgba(0,0,0,.45);
  transition:transform .25s,box-shadow .25s,border-color .25s;
  overflow:hidden;
}
.card::before{
  content:"";position:absolute;inset:0;border-radius:var(--radius);padding:1px;
  background:linear-gradient(140deg,var(--accent,rgba(255,255,255,.2)),transparent 60%);
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;opacity:.7;pointer-events:none;
}
.card::after{
  content:"";position:absolute;top:-40%;right:-30%;width:240px;height:240px;border-radius:50%;
  background:radial-gradient(circle,var(--accent,#fff),transparent 70%);opacity:.10;pointer-events:none;
}
.card:hover{transform:translateY(-4px);border-color:var(--accent);box-shadow:0 24px 60px rgba(0,0,0,.55),0 0 30px var(--accent-soft,transparent)}
.card-ardu{--accent:var(--cyan);--accent-soft:rgba(39,227,255,.25)}
.card-param{--accent:var(--green);--accent-soft:rgba(61,255,166,.25)}
.card-sik{--accent:var(--magenta);--accent-soft:rgba(255,77,219,.25)}
.card-esp{--accent:var(--amber);--accent-soft:rgba(255,194,61,.25)}

.card-head{display:flex;align-items:center;gap:14px;margin-bottom:18px}
.card-icon{
  width:46px;height:46px;border-radius:13px;display:grid;place-items:center;font-size:22px;
  background:rgba(255,255,255,.04);border:1px solid var(--panel-line);
  color:var(--accent);text-shadow:0 0 14px var(--accent);
}
.card-head h2{margin:0;font-size:20px;font-weight:700}
.card-head p{margin:3px 0 0;font-size:12px;color:var(--muted)}
.card-head code,.hint code{font-family:var(--mono);color:var(--accent);background:rgba(255,255,255,.05);padding:1px 5px;border-radius:5px}

.card-body{display:flex;flex-direction:column;gap:12px}
.field-label{font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:1px}
.fw-select,.baud-select,.chip-select,.addr-select{
  width:100%;padding:11px 13px;border-radius:11px;font-family:var(--mono);font-size:13px;
  background:rgba(8,11,22,.7);color:var(--text);border:1px solid var(--panel-line);outline:none;
}
.fw-select:focus{border-color:var(--accent)}
.opt-row{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.mini{font-size:12px;color:var(--muted);display:flex;flex-direction:column;gap:5px}
.mini select{width:auto;min-width:96px}
.mini.checkbox{flex-direction:row;align-items:center;gap:7px;padding-top:18px}
.mini.checkbox input{accent-color:var(--accent);width:15px;height:15px}
.hint{font-size:11.5px;color:var(--muted)}

.flash-btn{
  margin-top:6px;padding:13px;border-radius:13px;border:none;cursor:pointer;
  font-weight:700;font-size:15px;letter-spacing:.5px;color:#05060c;
  background:linear-gradient(120deg,var(--accent),#ffffff 140%);
  box-shadow:0 6px 22px var(--accent-soft);transition:.2s;position:relative;overflow:hidden;
}
.flash-btn:hover{filter:brightness(1.08);box-shadow:0 8px 30px var(--accent-soft),0 0 22px var(--accent-soft)}
.flash-btn:active{transform:translateY(1px)}
.flash-btn:disabled{opacity:.45;cursor:not-allowed;filter:grayscale(.4)}
.flash-btn.busy{color:transparent}
.flash-btn.busy::after{
  content:"";position:absolute;inset:0;margin:auto;width:20px;height:20px;border-radius:50%;
  border:3px solid rgba(5,6,12,.35);border-top-color:#05060c;animation:spin .7s linear infinite;
}

/* ---------- console ---------- */
.console{margin:8px 34px 0;border-radius:var(--radius);background:var(--panel);
  border:1px solid var(--panel-line);overflow:hidden;box-shadow:0 18px 50px rgba(0,0,0,.45)}
.console-head{display:flex;justify-content:space-between;align-items:center;
  padding:12px 18px;border-bottom:1px solid var(--panel-line);background:rgba(8,11,22,.5)}
.console-title{display:flex;align-items:center;gap:10px;font-family:var(--mono);font-size:13px;color:var(--muted)}
.led{width:9px;height:9px;border-radius:50%;background:var(--muted);transition:.3s}
.led.run{background:var(--cyan);box-shadow:0 0 12px var(--cyan);animation:pulse 1s ease-in-out infinite}
.led.ok{background:var(--green);box-shadow:0 0 12px var(--green)}
.led.err{background:var(--red);box-shadow:0 0 12px var(--red)}
@keyframes pulse{50%{opacity:.35}}
.console-actions{display:flex;align-items:center;gap:12px}
.status-pill{font-family:var(--mono);font-size:11px;padding:4px 11px;border-radius:20px;
  background:rgba(255,255,255,.06);color:var(--muted);border:1px solid var(--panel-line)}
.status-pill.run{color:var(--cyan);border-color:var(--cyan)}
.status-pill.ok{color:var(--green);border-color:var(--green)}
.status-pill.err{color:var(--red);border-color:var(--red)}

.console-body{height:300px;overflow-y:auto;padding:14px 18px;font-family:var(--mono);font-size:12.5px;line-height:1.6}
.console-body::-webkit-scrollbar{width:9px}
.console-body::-webkit-scrollbar-thumb{background:rgba(120,140,200,.25);border-radius:9px}
.log-line{white-space:pre-wrap;word-break:break-word;border-left:2px solid transparent;padding-left:10px;margin:1px 0}
.log-line.dim{color:var(--muted)}
.log-line.cmd{color:#c9d4ff;border-color:rgba(120,140,200,.5)}
.log-line.info{color:#b9c4ec}
.log-line.warn{color:var(--amber);border-color:var(--amber)}
.log-line.error{color:var(--red);border-color:var(--red)}
.log-line.success{color:var(--green);border-color:var(--green)}

/* ---------- footer ---------- */
.footer{display:flex;gap:10px;justify-content:center;align-items:center;
  padding:18px;color:var(--muted);font-family:var(--mono);font-size:11.5px;opacity:.8}
.admin-link{color:var(--cyan);text-decoration:none;border:1px solid rgba(39,227,255,.3);
  padding:3px 10px;border-radius:8px;transition:.18s}
.admin-link:hover{background:rgba(39,227,255,.12);box-shadow:0 0 12px rgba(39,227,255,.3)}

@media (max-width:640px){
  .topbar{padding:18px}.cards,.console{padding-left:14px;padding-right:14px;margin-left:14px;margin-right:14px}
  .port-panel{align-items:flex-start;width:100%}
}

/* ====================== ADMIN PAGE ====================== */
.admin-wrap{display:flex;flex-direction:column;gap:22px;padding:8px 34px 20px;max-width:1000px;margin:0 auto;width:100%}
.admin-card{
  border-radius:var(--radius);padding:24px;background:var(--panel);backdrop-filter:blur(14px);
  border:1px solid var(--panel-line);box-shadow:0 18px 50px rgba(0,0,0,.45);
}
.admin-h{margin:0 0 18px;font-size:18px;font-weight:700;letter-spacing:.3px}
.count-pill{font-family:var(--mono);font-size:12px;color:var(--cyan);
  background:rgba(39,227,255,.10);border:1px solid rgba(39,227,255,.3);
  padding:2px 9px;border-radius:20px;margin-left:6px;vertical-align:middle}

/* ---- drop zone ---- */
.drop-zone{
  border:2px dashed var(--panel-line);border-radius:16px;padding:34px 20px;text-align:center;
  cursor:pointer;transition:.2s;background:rgba(8,11,22,.4);
}
.drop-zone:hover{border-color:var(--cyan);background:rgba(39,227,255,.05)}
.drop-zone.over{border-color:var(--magenta);background:rgba(255,77,219,.08);box-shadow:0 0 24px rgba(255,77,219,.2) inset}
.drop-icon{font-size:38px;margin-bottom:6px}
.drop-title{margin:6px 0 4px;font-size:15px}
.drop-title .link{color:var(--cyan);text-decoration:underline}
.drop-sub{margin:0;font-size:12px;color:var(--muted);font-family:var(--mono)}

.upload-row{display:flex;flex-direction:column;gap:7px;margin-top:16px}
.field-label{font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:1px}
.folder-input{
  padding:11px 14px;border-radius:11px;font-family:var(--mono);font-size:13px;
  background:rgba(8,11,22,.7);color:var(--text);border:1px solid var(--panel-line);outline:none;
}
.folder-input:focus{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(39,227,255,.15)}

/* ---- upload queue ---- */
.queue{display:flex;flex-direction:column;gap:8px;margin-top:14px}
.q-item{display:flex;align-items:center;gap:12px;padding:9px 13px;border-radius:11px;
  background:rgba(8,11,22,.6);border:1px solid var(--panel-line);font-size:13px}
.q-name{flex:0 0 220px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-family:var(--mono);font-size:12.5px}
.q-bar{flex:1;height:7px;border-radius:6px;background:rgba(120,140,200,.15);overflow:hidden}
.q-fill{height:100%;width:0;background:linear-gradient(90deg,var(--cyan),var(--magenta));transition:width .15s}
.q-pct{flex:0 0 42px;text-align:right;font-family:var(--mono);font-size:12px;color:var(--muted)}
.q-item.done{border-color:rgba(61,255,166,.4)}.q-item.done .q-pct{color:var(--green)}
.q-item.done .q-fill{background:var(--green)}
.q-item.fail{border-color:rgba(255,88,116,.5)}.q-item.fail .q-pct{color:var(--red)}

/* ---- file list ---- */
.list-head{display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap;margin-bottom:14px}
.list-head .admin-h{margin:0}
.list-tools{display:flex;gap:8px}
.search-input{padding:8px 13px;border-radius:10px;font-size:13px;background:rgba(8,11,22,.7);
  color:var(--text);border:1px solid var(--panel-line);outline:none;min-width:160px}
.search-input:focus{border-color:var(--cyan)}
.file-list{display:flex;flex-direction:column;gap:7px;max-height:60vh;overflow-y:auto}
.file-row{display:flex;align-items:center;gap:13px;padding:11px 14px;border-radius:11px;
  background:rgba(8,11,22,.55);border:1px solid var(--panel-line);transition:.18s}
.file-row:hover{border-color:rgba(120,200,255,.4);background:rgba(18,22,38,.85)}
.kind-badge{flex:0 0 auto;font-size:11px;font-weight:700;padding:3px 9px;border-radius:7px;
  font-family:var(--mono);letter-spacing:.4px}
.k-ardu{color:var(--cyan);background:rgba(39,227,255,.12);border:1px solid rgba(39,227,255,.35)}
.k-param{color:var(--green);background:rgba(61,255,166,.12);border:1px solid rgba(61,255,166,.35)}
.k-sik{color:var(--magenta);background:rgba(255,77,219,.12);border:1px solid rgba(255,77,219,.35)}

/* -------- admin login gate -------- */
.btn-primary{
  appearance:none;cursor:pointer;font:inherit;font-weight:700;letter-spacing:.5px;
  padding:13px 18px;border-radius:12px;border:1px solid transparent;color:#05060c;
  background:linear-gradient(90deg,var(--cyan),var(--magenta));
  box-shadow:0 0 22px rgba(39,227,255,.3);transition:.18s}
.btn-primary:hover{filter:brightness(1.08);box-shadow:0 0 30px rgba(255,77,219,.4)}
.btn-primary:disabled{opacity:.55;cursor:default;box-shadow:none}

.admin-who{font-size:13px;color:var(--muted);font-family:var(--mono)}

.login-overlay{
  position:fixed;inset:0;z-index:50;display:flex;align-items:center;justify-content:center;
  padding:24px;background:rgba(3,4,9,.82);backdrop-filter:blur(6px)}
/* the [hidden] attr must beat the class-level display:flex above, or the overlay/main won't toggle */
.admin-wrap[hidden],.login-overlay[hidden]{display:none !important}
.login-card{
  width:min(360px,92vw);display:flex;flex-direction:column;gap:9px;padding:30px 28px 26px;
  border-radius:18px;background:var(--panel);border:1px solid var(--panel-line);
  box-shadow:0 18px 60px rgba(0,0,0,.55),0 0 0 1px rgba(120,140,200,.06)}
.login-logo{font-size:34px;text-align:center;margin-bottom:4px}
.login-logo-img{height:50px;width:auto;display:block;margin:0 auto 10px;filter:drop-shadow(0 0 10px rgba(39,227,255,.3))}
.login-title{margin:0;text-align:center;font-size:21px;
  background:linear-gradient(90deg,var(--cyan),var(--magenta));
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.login-sub{margin:0 0 12px;text-align:center;font-size:12px;color:var(--muted);
  letter-spacing:1.5px;text-transform:uppercase}
.login-input{
  width:100%;box-sizing:border-box;margin-bottom:4px;padding:11px 13px;border-radius:11px;
  background:rgba(8,11,22,.7);color:var(--text);border:1px solid var(--panel-line);
  font:inherit;outline:none;transition:.18s}
.login-input:focus{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(39,227,255,.15)}
.login-err{margin:2px 0 0;color:#ff6b8a;font-size:13px;text-align:center}
.login-btn{margin-top:12px;width:100%}
.auth-switch{margin:14px 0 0;text-align:center;font-size:13px;color:var(--muted)}
.auth-switch a{color:var(--cyan);text-decoration:none;font-weight:600;margin-left:5px}
.auth-switch a:hover{text-decoration:underline}
.user-chip{font-size:13px;color:var(--muted);font-family:var(--mono);white-space:nowrap}
.param-actions{display:flex;gap:10px;flex-wrap:wrap;align-items:stretch}
.param-actions .flash-btn{flex:1;min-width:150px}
.compare-btn{padding:0 16px;border-radius:12px;border:1px solid rgba(120,200,255,.35);background:rgba(39,227,255,.08);color:#cfefff;font-size:14px;font-weight:600;cursor:pointer;transition:.15s}
.compare-btn:hover{background:rgba(39,227,255,.18);border-color:var(--cyan)}
.compare-btn:disabled{opacity:.45;cursor:not-allowed}
.k-esp{color:var(--amber);background:rgba(255,194,61,.12);border:1px solid rgba(255,194,61,.35)}
.file-meta{flex:1;display:flex;flex-direction:column;gap:2px;min-width:0}
.file-name{font-size:13.5px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.file-folder{font-size:11.5px;color:var(--muted);font-family:var(--mono);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.file-size{flex:0 0 auto;font-size:12px;color:var(--muted);font-family:var(--mono)}
.del-btn{flex:0 0 auto;background:rgba(255,88,116,.1);border:1px solid rgba(255,88,116,.35);
  color:var(--red);border-radius:9px;padding:6px 11px;cursor:pointer;font-size:14px;transition:.18s}
.del-btn:hover{background:var(--red);color:#fff;box-shadow:0 0 14px rgba(255,88,116,.5)}
.empty-row{padding:26px;text-align:center;color:var(--muted);font-size:13px}

/* ---- toast ---- */
.toast{position:fixed;left:50%;bottom:28px;transform:translateX(-50%);z-index:50;
  padding:13px 22px;border-radius:13px;font-size:14px;font-weight:600;max-width:90vw;
  background:var(--panel);backdrop-filter:blur(10px);box-shadow:0 14px 40px rgba(0,0,0,.5)}
.toast[hidden]{display:none}
.toast.ok{border:1px solid rgba(61,255,166,.5);color:var(--green)}
.toast.err{border:1px solid rgba(255,88,116,.55);color:var(--red)}

@media (max-width:640px){
  .admin-wrap{padding:8px 14px 20px}
  .q-name{flex-basis:120px}
}