:root{
  --bg:#07111f;
  --panel:#0f1a2e;
  --panel-soft:#13213a;
  --text:#eaf2ff;
  --muted:#93a6c3;
  --line:rgba(255,255,255,.12);
  --primary:#37c6ff;
  --primary2:#7c5cff;
  --success:#41d693;
  --danger:#ff5573;
  --warning:#ffcc4d;
  --shadow:0 24px 70px rgba(0,0,0,.28);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Segoe UI,Arial,sans-serif;background:radial-gradient(circle at top left,#142b52 0,#07111f 45%,#050914 100%);color:var(--text)}
button,input{font:inherit}
.app-shell{min-height:100vh;display:grid;grid-template-columns:290px 1fr}
.sidebar{position:sticky;top:0;height:100vh;padding:24px;background:rgba(7,17,31,.78);border-right:1px solid var(--line);backdrop-filter:blur(18px);display:flex;flex-direction:column;gap:26px}
.brand{display:flex;align-items:center;gap:14px}.brand-mark{width:48px;height:48px;border-radius:16px;background:linear-gradient(135deg,var(--primary),var(--primary2));display:grid;place-items:center;font-weight:900;color:white;box-shadow:0 12px 30px rgba(55,198,255,.24)}
.brand h1{font-size:20px;margin:0}.brand p,.side-status p,.eyebrow{margin:0;color:var(--muted);font-size:12px}.nav-list{display:grid;gap:8px}.nav-link{color:var(--muted);text-decoration:none;padding:13px 14px;border-radius:14px;border:1px solid transparent}.nav-link:hover,.nav-link.active{color:white;background:rgba(255,255,255,.07);border-color:var(--line)}
.side-status{margin-top:auto;display:flex;gap:12px;align-items:center;padding:14px;border-radius:18px;background:rgba(255,255,255,.06);border:1px solid var(--line)}.dot{width:12px;height:12px;border-radius:50%;background:var(--warning);box-shadow:0 0 0 5px rgba(255,204,77,.12)}.dot.online{background:var(--success);box-shadow:0 0 0 5px rgba(65,214,147,.12)}.dot.offline{background:var(--danger);box-shadow:0 0 0 5px rgba(255,85,115,.12)}
.main-content{padding:26px;min-width:0}.topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:20px}.topbar h2{font-size:34px;margin:4px 0 0}.top-actions,.action-row,.input-row,.modal-actions{display:flex;gap:10px;flex-wrap:wrap}.btn{border:0;border-radius:14px;padding:12px 16px;font-weight:800;color:white;cursor:pointer;background:#263a58;transition:.16s}.btn:hover{transform:translateY(-1px);filter:brightness(1.08)}.btn.primary{background:linear-gradient(135deg,var(--primary),var(--primary2))}.btn.success{background:linear-gradient(135deg,#1fbe78,var(--success))}.btn.danger{background:#8e2940}.btn.ghost{background:rgba(255,255,255,.08);border:1px solid var(--line)}.btn.full{width:100%;justify-content:center}.text-btn{background:transparent;border:0;color:var(--primary);cursor:pointer;font-weight:800}.icon-btn{background:rgba(255,255,255,.08);border:1px solid var(--line);color:white;border-radius:12px;width:38px;height:38px;cursor:pointer;font-size:18px}
.hero-card,.panel{background:linear-gradient(180deg,rgba(255,255,255,.085),rgba(255,255,255,.038));border:1px solid var(--line);box-shadow:var(--shadow);border-radius:26px}.hero-card{padding:26px;display:grid;grid-template-columns:1.1fr .9fr;gap:20px;align-items:center;margin-bottom:18px}.hero-card h3{font-size:30px;margin:6px 0}.hero-copy{color:var(--muted);line-height:1.55}.hero-metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.metric-tile{padding:16px;border-radius:18px;background:rgba(255,255,255,.06);border:1px solid var(--line)}.metric-tile span{display:block;color:var(--muted);font-size:12px;margin-bottom:8px}.metric-tile strong{font-size:22px}
.meta-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:12px;margin:0 0 18px}.meta-card{padding:16px;border-radius:18px;background:rgba(255,255,255,.045);border:1px solid var(--line);box-shadow:var(--shadow)}.meta-card span{display:block;color:var(--muted);font-size:12px;margin-bottom:8px}.meta-card strong{display:block;font-size:15px;line-height:1.4;word-break:break-word}
.grid{display:grid;gap:18px;margin-bottom:18px}.two-col{grid-template-columns:1.2fr .8fr}.panel{padding:20px}.panel-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px}.panel h3,.panel h4{margin:0}.panel p,.hint{color:var(--muted);line-height:1.45}.status-pill{display:inline-flex;align-items:center;padding:8px 11px;border-radius:999px;background:rgba(255,255,255,.07);border:1px solid var(--line);color:var(--muted);font-size:12px;font-weight:900;white-space:nowrap}.status-pill.success{color:var(--success);border-color:rgba(65,214,147,.28);background:rgba(65,214,147,.10)}.status-pill.danger{color:var(--danger);border-color:rgba(255,85,115,.28);background:rgba(255,85,115,.10)}
.rfid-mode-card{margin:18px 0;padding:16px;border-radius:18px;background:rgba(255,255,255,.045);border:1px solid var(--line)}.rfid-mode-top{display:flex;justify-content:space-between;gap:16px;align-items:center}.rfid-mode-top h4{margin:0 0 6px}.rfid-mode-top p{margin:0}.mode-state{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:14px}.mode-state span{padding:10px;border-radius:12px;text-align:center;background:rgba(255,255,255,.05);font-weight:800;color:var(--muted);border:1px solid transparent}.mode-state .active-mode{background:rgba(65,214,147,.12);color:var(--success);border-color:rgba(65,214,147,.25)}.rfid-live-row{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:12px}.rfid-live-row div{padding:12px;border-radius:14px;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.07)}.rfid-live-row span{display:block;color:var(--muted);font-size:12px;margin-bottom:4px}.rfid-live-row strong{word-break:break-all}
.door-visual{display:grid;grid-template-columns:140px 1fr;gap:18px;align-items:center}.door-frame{height:170px;border:3px solid rgba(255,255,255,.18);border-radius:18px;padding:8px;background:rgba(0,0,0,.12)}.door{height:100%;border-radius:12px;background:linear-gradient(135deg,#263a58,#16243b);display:grid;place-items:center;font-size:30px;font-weight:800;letter-spacing:1px;transform-origin:left;transition:.35s}.door.open{transform:perspective(450px) rotateY(-35deg);background:linear-gradient(135deg,#1d8b61,#1fbe78)}.register-box{margin-top:18px;padding:14px;border-radius:18px;background:rgba(255,255,255,.045);border:1px solid var(--line)}label{display:block;color:var(--muted);font-size:13px;margin-bottom:8px}input[type=text],input[type=number],#apiBaseInput{width:100%;background:#091425;border:1px solid var(--line);border-radius:14px;color:white;padding:13px 14px;outline:none}input:focus{border-color:rgba(55,198,255,.6)}.list-head{margin-top:18px;display:flex;align-items:center;justify-content:space-between}.card-list{display:grid;gap:10px;margin-top:10px}.rfid-card-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:13px;border-radius:16px;background:rgba(255,255,255,.045);border:1px solid rgba(255,255,255,.08)}.rfid-card-row span{display:block;margin-top:5px;color:var(--muted);font-size:12px}.delete-card-btn{border:0;border-radius:12px;background:rgba(255,85,115,.14);color:#ff91a5;padding:10px 12px;font-weight:800;cursor:pointer}
.device-card,.rule-row{display:grid;grid-template-columns:54px 1fr auto;gap:14px;align-items:center;padding:16px;border-radius:18px;background:rgba(255,255,255,.045);border:1px solid rgba(255,255,255,.08);margin-bottom:12px}.rule-row{grid-template-columns:1fr auto}.muted-card{opacity:.92}.device-icon{width:46px;height:46px;border-radius:15px;background:rgba(55,198,255,.12);display:grid;place-items:center;font-size:12px;font-weight:800;letter-spacing:1px}.switch{position:relative;width:58px;height:32px;margin:0}.switch input{display:none}.slider{position:absolute;cursor:pointer;inset:0;background:#31435f;border-radius:999px;transition:.2s;border:1px solid var(--line)}.slider:before{content:"";position:absolute;width:24px;height:24px;left:4px;top:3px;background:white;border-radius:50%;transition:.2s}input:checked+.slider{background:linear-gradient(135deg,var(--success),var(--primary))}input:checked+.slider:before{transform:translateX(25px)}
.tank-layout{display:grid;grid-template-columns:140px 1fr;gap:22px;align-items:center}.tank-shell{height:260px;width:130px;border:3px solid rgba(255,255,255,.22);border-radius:30px;position:relative;overflow:hidden;background:rgba(0,0,0,.14);display:flex;align-items:center;justify-content:center}.tank-water{position:absolute;left:0;right:0;bottom:0;height:0;background:linear-gradient(#37c6ff,#146cff);transition:.2s}.tank-shell span{position:relative;z-index:2;font-size:25px;font-weight:900;text-shadow:0 3px 10px rgba(0,0,0,.45)}.level-bar{height:14px;border-radius:999px;background:rgba(255,255,255,.08);overflow:hidden;border:1px solid var(--line);margin:12px 0 18px}.level-bar div{height:100%;width:0;background:linear-gradient(90deg,var(--primary),var(--success));transition:.2s}.range-setting{padding:14px;border-radius:18px;background:rgba(255,255,255,.045);border:1px solid rgba(255,255,255,.08);margin-bottom:12px}.range-title{display:flex;justify-content:space-between;gap:12px}input[type=range]{width:100%;accent-color:var(--primary);cursor:pointer}
.modal-backdrop{position:fixed;inset:0;background:rgba(0,0,0,.55);display:none;align-items:center;justify-content:center;padding:18px;z-index:50}.modal-backdrop.show{display:flex}.modal{width:min(560px,100%);background:#0d182a;border:1px solid var(--line);border-radius:24px;box-shadow:var(--shadow);padding:20px}.modal-head{display:flex;align-items:center;justify-content:space-between}.hint.big{font-size:14px}.warning-box{margin-top:14px;border-radius:16px;border:1px solid rgba(255,204,77,.22);background:rgba(255,204,77,.08);color:#ffe3a0;padding:13px;line-height:1.45}.toast-wrap{position:fixed;right:18px;bottom:18px;display:grid;gap:10px;z-index:99}.toast{padding:13px 16px;border-radius:14px;background:#10213a;border:1px solid var(--line);box-shadow:var(--shadow);max-width:360px}.toast.success{border-color:rgba(65,214,147,.32)}.toast.error{border-color:rgba(255,85,115,.32);color:#ffb3c0}
@media(max-width:1050px){.app-shell{grid-template-columns:1fr}.sidebar{position:relative;height:auto}.nav-list{grid-template-columns:repeat(5,1fr)}.hero-card,.two-col,.meta-grid{grid-template-columns:1fr}.hero-metrics{grid-template-columns:repeat(2,1fr)}}
@media(max-width:650px){.main-content{padding:16px}.topbar,.panel-head,.hero-card{display:block}.top-actions{margin-top:12px}.door-visual,.tank-layout{grid-template-columns:1fr}.hero-metrics,.mode-state,.rfid-live-row,.meta-grid{grid-template-columns:1fr}.device-card{grid-template-columns:48px 1fr auto}.nav-list{grid-template-columns:1fr 1fr}.sidebar{padding:18px}.topbar h2{font-size:27px}}