:root{
  --bg:#eef3f7;--panel:#fff;--line:#d8e1ea;--text:#183247;--muted:#617589;--nav:#0c1735;--nav2:#102147;--accent:#14a44d;--accent2:#0d8c3f;
}
*{box-sizing:border-box} html,body{margin:0;padding:0;font-family:Inter,Segoe UI,Arial,sans-serif;background:var(--bg);color:var(--text)}
body{min-height:100vh}
.app-shell{display:grid;grid-template-columns:280px 1fr;min-height:100vh}
.sidebar{background:linear-gradient(180deg,var(--nav),var(--nav2));color:#fff;padding:22px 18px;display:flex;flex-direction:column;gap:22px}
.brand{display:flex;gap:14px;align-items:center}.brand-mark{width:48px;height:48px;border-radius:14px;background:rgba(20,164,77,.18);display:grid;place-items:center;font-size:1.4rem;color:#7ff0a7}.brand-title{font-size:1.2rem;font-weight:800}.brand-sub{font-size:.9rem;color:#b5c1d8}
.nav-list{display:grid;gap:10px}.nav-btn{border:1px solid transparent;background:transparent;color:#d7e0f4;border-radius:16px;padding:14px 16px;display:flex;align-items:center;gap:12px;font-size:1.05rem;font-weight:700;cursor:pointer;text-align:left}.nav-btn:hover{background:rgba(255,255,255,.04)}.nav-btn.active{background:linear-gradient(90deg,rgba(20,164,77,.26),rgba(20,164,77,.14));border-color:rgba(149,238,184,.4);color:#fff}
.sidebar-foot{margin-top:auto;display:grid;gap:14px}.user-box{padding:14px;border-radius:18px;background:rgba(255,255,255,.06)}.user-role{font-size:.86rem;color:#b5c1d8}.user-name{font-weight:800;margin-top:6px}.sidebar-actions{display:grid;gap:10px}.side-link{display:flex;gap:10px;align-items:center;color:#d7e0f4;text-decoration:none;padding:12px 14px;border-radius:14px;background:rgba(255,255,255,.04)}
.main{padding:26px 28px 32px}.topbar{display:flex;justify-content:space-between;align-items:flex-start;gap:20px;margin-bottom:18px}.topbar h1{margin:0 0 6px;font-size:2rem}.topbar p{margin:0;color:var(--muted)}.topbar-actions{display:flex;gap:12px}
.primary-btn,.ghost-btn,.secondary-btn{border:0;border-radius:14px;padding:12px 16px;display:inline-flex;align-items:center;gap:10px;font-weight:800;cursor:pointer}.primary-btn{background:linear-gradient(180deg,var(--accent),var(--accent2));color:#fff}.ghost-btn{background:#fff;border:1px solid var(--line);color:var(--text)}.secondary-btn{background:#e9f8ef;color:#0f7d3a;border:1px solid #cfeedd}
.status-bar{padding:13px 16px;border-radius:14px;margin-bottom:18px;font-weight:700}.status-bar.info{background:#e9f1fb;color:#24507a}.status-bar.success{background:#e8f8ee;color:#13703a}.status-bar.error{background:#ffecec;color:#a41d1d}
.section{display:none}.section.active{display:block}.summary-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-bottom:18px}.summary-card{background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:18px 20px}.summary-card span{display:block;color:var(--muted);font-weight:700}.summary-card strong{display:block;font-size:1.9rem;margin-top:12px}
.panel{background:var(--panel);border:1px solid var(--line);border-radius:20px;padding:22px 24px;margin-bottom:18px}.panel-head{display:flex;justify-content:space-between;align-items:flex-start;gap:12px;margin-bottom:16px}.panel h2{margin:0 0 6px}.muted{margin:0;color:var(--muted)}.two-col{display:grid;grid-template-columns:1.2fr .8fr;gap:20px}.kv-list{display:grid;gap:10px;margin-top:12px}.kv-list .row{display:flex;justify-content:space-between;gap:12px;padding:10px 0;border-bottom:1px solid #edf1f5}.kv-list .row:last-child{border-bottom:0}.steps{margin:10px 0 0 18px;color:var(--muted);display:grid;gap:8px}
.device-layout{display:grid;grid-template-columns:320px 1fr;gap:18px}.field-label{display:block;font-size:.92rem;font-weight:800;margin-bottom:8px;color:#355168}.field{width:100%;border:1px solid var(--line);background:#fff;border-radius:14px;padding:12px 14px;font-size:1rem}.helper-box,.empty-state{border:1px dashed #c7d5e2;background:#f8fbfd;border-radius:16px;padding:16px;color:var(--muted)}.empty-state{font-weight:700}
.table-wrap{overflow:auto}.data-table{width:100%;border-collapse:collapse}.data-table th,.data-table td{padding:13px 12px;border-bottom:1px solid #edf1f5;text-align:left}.data-table th{font-size:.88rem;color:var(--muted);text-transform:uppercase;letter-spacing:.04em}.data-table tbody tr{cursor:pointer}.data-table tbody tr:hover{background:#f7fbff}.data-table tbody tr.active{background:#ecf7f0}
.badge-soft{display:inline-block;padding:6px 10px;border-radius:999px;background:#eef5fb;color:#355168;font-weight:800;font-size:.84rem}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.form-grid.hidden,#downlinkWrap.hidden,#keysWrap.hidden,#mqttForm.hidden{display:none}.action-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}
.key-list{display:grid;gap:12px;margin:16px 0}.key-row{display:grid;grid-template-columns:1fr 1fr auto;gap:12px}.key-remove{border:0;background:#ffecec;color:#9a2121;border-radius:14px;padding:0 16px;font-weight:800;cursor:pointer}
@media (max-width: 1100px){.app-shell{grid-template-columns:1fr}.sidebar{padding:16px}.main{padding:18px}.device-layout,.two-col,.summary-grid,.form-grid{grid-template-columns:1fr}}

/* mobile hardening + cache-bust build 20260415-6 */


.hidden{display:none!important}
.mobile-menu-btn{display:none;border:1px solid var(--line);background:#fff;color:var(--text);width:46px;height:46px;border-radius:14px;align-items:center;justify-content:center;font-size:1.35rem;cursor:pointer;box-shadow:0 2px 6px rgba(0,0,0,.05)}
.topbar-left{display:flex;align-items:flex-start;gap:12px}
.mobile-overlay{display:none}
.mobile-nav{display:none}

@media (max-width: 980px){
  .app-shell{grid-template-columns:1fr}
  .sidebar{
    position:fixed;left:0;top:0;bottom:0;z-index:40;width:min(84vw,320px);
    transform:translateX(-102%);transition:transform .22s ease;
    box-shadow:0 24px 64px rgba(0,0,0,.22);
    overflow:auto;
  }
  .sidebar.open{transform:translateX(0)}
  .mobile-overlay{
    display:block;position:fixed;inset:0;background:rgba(8,14,31,.45);
    z-index:35;border:0;padding:0;margin:0;opacity:0;pointer-events:none;transition:opacity .2s ease;
  }
  .mobile-overlay.show{opacity:1;pointer-events:auto}
  .main{padding:16px 14px 90px}
  .mobile-menu-btn{display:inline-flex}
  .topbar{align-items:flex-start;position:sticky;top:0;background:var(--bg);z-index:20;padding-top:4px}
  .topbar h1{font-size:1.55rem}
  .topbar-actions{gap:8px;flex-wrap:wrap}
  .topbar-actions .ghost-btn span,.topbar-actions .primary-btn span{display:none}
  .topbar-actions .ghost-btn,.topbar-actions .primary-btn{padding:11px 13px}
  .summary-grid,.two-col,.device-layout,.form-grid,.mqtt-grid{grid-template-columns:1fr!important}
  .panel{padding:18px 16px}
  .table-wrap{overflow:auto}
  .data-table{min-width:640px}
  .sidebar-foot{padding-bottom:18px}
  .mobile-nav{
    display:grid;grid-template-columns:repeat(4,1fr);gap:8px;position:fixed;left:10px;right:10px;bottom:10px;
    z-index:45;background:rgba(12,23,53,.96);border:1px solid rgba(255,255,255,.08);
    border-radius:20px;padding:8px;box-shadow:0 16px 40px rgba(0,0,0,.22);backdrop-filter:blur(8px)
  }
  .mobile-nav-btn{
    border:0;background:transparent;color:#d7e0f4;border-radius:14px;padding:10px 6px;display:flex;flex-direction:column;gap:6px;
    align-items:center;justify-content:center;font-size:.82rem;font-weight:800;cursor:pointer
  }
  .mobile-nav-btn i{font-size:1.05rem}
  .mobile-nav-btn.active{background:linear-gradient(180deg,rgba(20,164,77,.28),rgba(20,164,77,.18));color:#fff}
}

@media (max-width: 640px){
  .summary-card strong{font-size:1.5rem}
  .panel h2{font-size:1.35rem}
  .field{padding:11px 12px}
  .steps{margin-left:16px}
}


/* mobile tuning v7 */
@media (max-width: 768px){
  .main{padding:10px 10px 88px}
  .topbar{margin-bottom:10px;padding-top:0;align-items:flex-start}
  .topbar-left{gap:10px;align-items:flex-start}
  .mobile-menu-btn{width:42px;height:42px;border-radius:12px;font-size:1.2rem;flex:0 0 42px}
  .topbar h1{font-size:1.05rem;line-height:1.15;margin:0 0 2px}
  .topbar p{font-size:.82rem;line-height:1.3;margin:0}
  .topbar-actions{gap:6px}
  .topbar-actions .ghost-btn,.topbar-actions .primary-btn{padding:10px 11px;border-radius:12px;min-width:42px;min-height:42px}
  .status-bar{padding:10px 12px;font-size:.92rem;margin-bottom:10px}
  .panel{padding:14px 12px;border-radius:16px;margin-bottom:12px}
  .panel-head{margin-bottom:10px}
  .panel h2{font-size:1rem;margin:0 0 2px}
  .muted{font-size:.86rem;line-height:1.35}
  .summary-grid{gap:10px;margin-bottom:10px}
  .summary-card{padding:14px 14px;border-radius:16px}
  .summary-card strong{font-size:1.1rem;margin-top:8px}
  .summary-card span{font-size:.82rem}
  .field-label{margin-bottom:6px;font-size:.86rem}
  .field{padding:10px 12px;border-radius:12px;font-size:.98rem}
  .helper-box,.empty-state{padding:12px;border-radius:14px;font-size:.9rem}
  .action-row{gap:8px}
  .action-row .primary-btn,.action-row .secondary-btn,.action-row .ghost-btn{width:100%;justify-content:center}
  .data-table{min-width:0 !important;width:100%}
  .table-wrap{overflow:visible}
  .data-table thead{display:none}
  .data-table tbody,.data-table tr,.data-table td{display:block;width:100%}
  .data-table tr{
    background:#fff;border:1px solid var(--line);border-radius:16px;
    margin:0 0 10px;padding:12px;box-shadow:0 2px 6px rgba(0,0,0,.04)
  }
  .data-table td{border:0;padding:6px 0}
  .data-table td:nth-child(1){padding-top:0}
  .data-table td:nth-child(2)::before,
  .data-table td:nth-child(3)::before,
  .data-table td:nth-child(4)::before{
    display:block;font-size:.75rem;font-weight:800;color:var(--muted);
    text-transform:uppercase;letter-spacing:.03em;margin-bottom:2px
  }
  .data-table td:nth-child(2)::before{content:'Poslední data'}
  .data-table td:nth-child(3)::before{content:'Typ'}
  .data-table td:nth-child(4)::before{content:'Cyklus'}
  .data-table td:nth-child(5){padding-bottom:0}
  .data-table td:nth-child(5) .ghost-btn{width:100%;justify-content:center}
  .device-layout{gap:12px}
  .mobile-nav{left:8px;right:8px;bottom:8px;padding:7px;gap:6px}
  .mobile-nav-btn{padding:8px 4px;font-size:.76rem}
  .mobile-nav-btn i{font-size:1rem}
}
@media (max-width: 420px){
  .topbar h1{font-size:.96rem}
  .topbar p{font-size:.78rem}
  .topbar-actions .ghost-btn,.topbar-actions .primary-btn{padding:9px 10px;min-width:40px;min-height:40px}
  .status-bar{font-size:.88rem}
}


/* unified mobile + section polish v7 */
.subcard{background:#f9fbfd;border:1px solid var(--line);border-radius:18px;padding:18px;margin-bottom:14px}
.subcard-head{margin-bottom:12px}
.subcard-head h3{margin:0 0 4px;font-size:1.05rem}
.downlink-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.compact-actions{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
.compact-actions .primary-btn,.compact-actions .secondary-btn{justify-content:center}
.device-layout .gateway-col,.device-layout .device-col{min-width:0}
.data-table td .muted{margin-top:4px;font-size:.92rem}
.data-table tbody tr.active{background:#eef7f1;border-radius:14px}
.data-table tbody tr.active td:first-child strong{color:#103b22}
#selectionLine{max-width:540px}
@media (max-width:980px){
  .topbar{padding:0 0 4px;margin-bottom:8px}
  .topbar-left{align-items:center}
  .topbar h1{font-size:1.15rem;line-height:1.1}
  .topbar p{font-size:.84rem;line-height:1.2}
  .topbar-actions{align-items:center}
  .downlink-grid{grid-template-columns:1fr}
}
@media (max-width:768px){
  .topbar{position:sticky;top:0;background:rgba(238,243,247,.96);backdrop-filter:blur(6px);padding:8px 2px 6px;z-index:30}
  .topbar h1{font-size:.98rem;margin:0 0 1px}
  .topbar p{font-size:.76rem;max-width:170px}
  #selectionLine{max-width:170px}
  .topbar-actions{display:grid;grid-template-columns:1fr;gap:6px}
  .topbar-actions .ghost-btn,.topbar-actions .primary-btn{width:56px;height:48px;padding:0;justify-content:center}
  .status-bar{margin-bottom:8px;padding:9px 12px}
  .panel{padding:14px 14px 16px}
  .summary-grid{grid-template-columns:repeat(3,1fr)!important}
  .summary-card{min-height:96px;display:flex;flex-direction:column;justify-content:space-between}
  .summary-card strong{font-size:.92rem;line-height:1.2;word-break:break-word}
  .summary-card span{font-size:.8rem}
  .panel h2{font-size:.95rem}
  .steps{font-size:.9rem}
  .data-table tr{padding:14px;border-radius:18px;background:#fff}
  .data-table td:nth-child(1) strong{display:block;font-size:1.05rem;margin-bottom:2px}
  .data-table td:nth-child(5) .ghost-btn{height:44px;border-radius:14px;font-weight:800}
  .helper-box{font-size:.88rem}
  .subcard{padding:14px;border-radius:16px;background:#fff}
  .subcard-head h3{font-size:1rem}
  .compact-grid{grid-template-columns:1fr!important}
  .compact-actions{grid-template-columns:1fr}
  .compact-actions .primary-btn,.compact-actions .secondary-btn{height:48px;border-radius:14px}
  #downlinkWrap .field-label{font-size:.84rem}
  #downlinkResult{margin-top:6px}
}
@media (max-width:420px){
  .main{padding:8px 8px 86px}
  .topbar-left{gap:8px}
  .mobile-menu-btn{width:40px;height:40px}
  .topbar-actions .ghost-btn,.topbar-actions .primary-btn{width:52px;height:46px}
  .summary-card{padding:12px}
  .summary-card strong{font-size:.86rem}
  .summary-card span{font-size:.75rem}
  .panel{padding:12px}
  .subcard{padding:12px}
  .mobile-nav-btn span{font-size:.72rem}
}


.users-panel-head{align-items:center}
.users-table-wrap{margin-top:16px}
.users-table .field{min-width:120px}
.user-active-toggle{display:inline-flex;align-items:center;gap:10px;font-weight:700;color:var(--text)}
.user-active-toggle input{width:18px;height:18px}
.user-actions{display:flex;gap:8px;flex-wrap:wrap;justify-content:flex-end}
.danger-btn{background:#fff4f4;border-color:#f1c6c6;color:#9a2121}
@media (max-width:980px){.mobile-nav{grid-template-columns:repeat(5,1fr)}.users-table{min-width:860px}}

.calc-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:16px}
.calc-box{background:#fff}
.calc-label{font-size:.82rem;font-weight:800;color:var(--muted);margin-bottom:8px}
.calc-value{font-size:1.2rem;font-weight:900;letter-spacing:.06em;color:var(--text);word-break:break-word}
.calc-value.small{font-size:1rem;letter-spacing:normal}
.calc-hint{margin-top:12px}
.calc-hint.success{border-style:solid;background:#eefaf1;border-color:#b9e2c2;color:#1e6a33}
.calc-hint.error{border-style:solid;background:#fff3f3;border-color:#efc0c0;color:#9a2121}
@media (max-width:980px){.calc-grid{grid-template-columns:1fr}}