:root{
    --bg:#f5f7fb;
    --surface:#ffffff;
    --surface-soft:#f8fafc;
    --surface-strong:#eef2f7;
    --text:#111827;
    --muted:#64748b;
    --muted-2:#94a3b8;
    --line:#e2e8f0;
    --line-strong:#cbd5e1;
    --brand:#2563eb;
    --brand-2:#1d4ed8;
    --success:#16a34a;
    --success-bg:#dcfce7;
    --warning:#d97706;
    --warning-bg:#fef3c7;
    --danger:#dc2626;
    --danger-bg:#fee2e2;
    --info:#0891b2;
    --info-bg:#cffafe;
    --shadow:0 18px 45px rgba(15,23,42,.08);
    --shadow-soft:0 8px 24px rgba(15,23,42,.06);
    --radius:18px;
    --radius-sm:12px;
    --sidebar:272px;
    --font:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
    --mono:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font);font-size:14px;line-height:1.5;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit}
button{border:0}
img,video{max-width:100%}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.admin-shell{display:flex;min-height:100vh}
.sidebar{width:var(--sidebar);background:#0f172a;color:#e5e7eb;position:fixed;inset:0 auto 0 0;padding:22px;display:flex;flex-direction:column;gap:18px;z-index:10}
.brand{display:flex;align-items:center;gap:12px;padding:4px 4px 18px;border-bottom:1px solid rgba(148,163,184,.22)}
.brand-mark{width:42px;height:42px;border-radius:14px;display:grid;place-items:center;background:linear-gradient(135deg,#38bdf8,#2563eb);box-shadow:0 12px 24px rgba(37,99,235,.26);font-weight:900;color:#fff;letter-spacing:-.04em}
.brand-title{font-weight:800;font-size:16px;line-height:1.15}
.brand-subtitle{display:block;color:#94a3b8;font-size:12px;margin-top:2px;font-weight:500}
.sidebar-section{display:grid;gap:7px}
.nav-label{font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:#64748b;margin:10px 8px 2px}
.nav-link{display:flex;align-items:center;gap:10px;padding:11px 12px;border-radius:12px;color:#cbd5e1;transition:.16s ease;background:transparent}
.nav-link:hover,.nav-link.active{background:rgba(148,163,184,.14);color:#fff}
.nav-icon{width:20px;text-align:center;opacity:.92}
.sidebar-footer{margin-top:auto;display:grid;gap:10px;color:#94a3b8;font-size:12px;padding-top:14px;border-top:1px solid rgba(148,163,184,.22)}
.content{margin-left:var(--sidebar);width:calc(100% - var(--sidebar));min-height:100vh;padding:28px;display:grid;gap:22px}
.topbar{display:flex;align-items:center;justify-content:space-between;gap:16px}
.breadcrumb{display:flex;align-items:center;gap:8px;color:var(--muted);font-size:13px;margin-bottom:6px}
.page-title{margin:0;font-size:28px;line-height:1.15;letter-spacing:-.03em}
.page-subtitle{margin:8px 0 0;color:var(--muted);max-width:860px}
.topbar-actions{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-soft);overflow:hidden}
.panel.pad{padding:20px}
.panel-header{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;padding:20px;border-bottom:1px solid var(--line)}
.panel-title{margin:0;font-size:17px;letter-spacing:-.02em}
.panel-description{margin:5px 0 0;color:var(--muted);font-size:13px}
.panel-body{padding:20px}
.grid{display:grid;gap:16px}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.stats-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.stat-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow-soft);position:relative;overflow:hidden}
.stat-card:after{content:"";position:absolute;right:-36px;top:-36px;width:96px;height:96px;border-radius:50%;background:rgba(37,99,235,.08)}
.stat-label{color:var(--muted);font-size:13px;margin:0 0 8px}
.stat-value{font-size:30px;font-weight:800;letter-spacing:-.04em;margin:0;line-height:1}
.stat-foot{display:flex;align-items:center;gap:8px;margin-top:12px;color:var(--muted);font-size:12px}
.hero{background:linear-gradient(135deg,#0f172a,#1e3a8a 62%,#0891b2);color:#fff;border:0;box-shadow:var(--shadow);position:relative;overflow:hidden}
.hero:before{content:"";position:absolute;inset:-80px -80px auto auto;width:260px;height:260px;border-radius:50%;background:rgba(255,255,255,.12)}
.hero .panel-body{position:relative;display:flex;align-items:center;justify-content:space-between;gap:20px}
.hero-title{font-size:25px;font-weight:850;letter-spacing:-.035em;margin:0}
.hero-desc{color:#dbeafe;margin:8px 0 0;max-width:820px}
.hero-meta{display:flex;gap:10px;flex-wrap:wrap;margin-top:15px}
.kpi-pill,.chip{display:inline-flex;align-items:center;gap:7px;border-radius:999px;padding:7px 11px;font-size:12px;font-weight:650;background:rgba(255,255,255,.12);color:#fff;border:1px solid rgba(255,255,255,.18)}
.chip{background:var(--surface-soft);color:var(--muted);border-color:var(--line)}
.chip.active{background:#eff6ff;color:var(--brand);border-color:#bfdbfe}
.notice{border:1px solid #fed7aa;background:#fff7ed;color:#7c2d12;border-radius:var(--radius-sm);padding:13px 15px;display:flex;gap:10px;align-items:flex-start}
.notice.info{border-color:#bae6fd;background:#f0f9ff;color:#0c4a6e}
.notice strong{display:block;color:inherit;margin-bottom:2px}
.btn,.button,button.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:40px;padding:10px 14px;border-radius:12px;font-weight:700;cursor:pointer;transition:.16s ease;border:1px solid transparent;text-decoration:none;white-space:nowrap}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 20px rgba(37,99,235,.18)}
.btn-primary:hover{background:var(--brand-2)}
.btn-secondary{background:var(--surface);color:var(--text);border-color:var(--line)}
.btn-secondary:hover{background:var(--surface-soft);border-color:var(--line-strong)}
.btn-danger{background:var(--danger);color:#fff;box-shadow:0 10px 20px rgba(220,38,38,.14)}
.btn-danger:hover{background:#b91c1c}
.btn-ghost{background:transparent;color:var(--muted);border-color:transparent}
.btn-ghost:hover{background:var(--surface-soft);color:var(--text)}
.btn-sm{min-height:32px;padding:7px 10px;border-radius:10px;font-size:12px}
.btn[disabled],button[disabled]{opacity:.56;cursor:not-allowed;box-shadow:none}
.form-grid{display:grid;grid-template-columns:1fr auto;gap:10px;align-items:end}
.field{display:grid;gap:7px}
.label{font-weight:700;font-size:13px;color:#334155}
.input,.select,input[type=text],input[type=search],input[type=number],input[type=password],select,textarea{width:100%;min-height:40px;padding:10px 12px;border:1px solid var(--line-strong);border-radius:12px;background:#fff;color:var(--text);outline:none;transition:.16s ease}
.input:focus,.select:focus,input:focus,select:focus,textarea:focus{border-color:#93c5fd;box-shadow:0 0 0 4px rgba(37,99,235,.12)}
.toolbar{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.toolbar .grow{flex:1 1 260px}
.table-shell{overflow:auto}
.table{width:100%;border-collapse:separate;border-spacing:0;min-width:880px}
.table th{background:var(--surface-soft);color:#475569;font-size:12px;text-transform:uppercase;letter-spacing:.05em;text-align:left;padding:12px 14px;border-bottom:1px solid var(--line);white-space:nowrap}
.table td{padding:14px;border-bottom:1px solid var(--line);vertical-align:middle;background:#fff}
.table tr:hover td{background:#fbfdff}
.table .device-name{font-weight:800;color:#0f172a}
.table .device-meta{color:var(--muted);font-size:12px;margin-top:3px}
.badge{display:inline-flex;align-items:center;gap:6px;border-radius:999px;padding:5px 9px;font-size:12px;font-weight:800;line-height:1;text-transform:uppercase}
.badge:before{content:"";width:7px;height:7px;border-radius:50%;background:currentColor}
.badge.online,.badge.done{background:var(--success-bg);color:#166534}
.badge.offline{background:#f1f5f9;color:#64748b}
.badge.pending,.badge.running{background:var(--warning-bg);color:#92400e}
.badge.error{background:var(--danger-bg);color:#991b1b}
.token{font-family:var(--mono);font-size:12px;word-break:break-all;color:#334155}
.copy-token{cursor:pointer}
.copy-token:hover{color:var(--brand)}
.row-actions{display:flex;gap:7px;align-items:center;flex-wrap:wrap}
.empty-state{text-align:center;color:var(--muted);padding:42px 18px}
.empty-state strong{display:block;color:var(--text);font-size:16px;margin-bottom:4px}
.pagination{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 20px;border-top:1px solid var(--line);background:#fff}
.pagination-controls{display:flex;align-items:center;gap:8px}
.muted{color:var(--muted)}
.tiny{font-size:12px}.small{font-size:13px}.mono{font-family:var(--mono)}
.toast-wrap{position:fixed;right:22px;bottom:22px;display:grid;gap:10px;z-index:50;max-width:min(420px,calc(100vw - 44px))}
.toast{background:#0f172a;color:#fff;border-radius:14px;padding:13px 14px;box-shadow:var(--shadow);display:flex;gap:10px;align-items:flex-start;animation:toastIn .18s ease-out}
.toast.error{background:#991b1b}.toast.success{background:#166534}.toast.info{background:#075985}
@keyframes toastIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}
.skeleton{position:relative;overflow:hidden;background:#e2e8f0;border-radius:10px;color:transparent!important}
.skeleton:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,transparent,rgba(255,255,255,.45),transparent);animation:shimmer 1.1s infinite;transform:translateX(-100%)}
@keyframes shimmer{100%{transform:translateX(100%)}}
.login-page{min-height:100vh;display:grid;place-items:center;background:radial-gradient(circle at top left,#dbeafe,transparent 32%),var(--bg);padding:22px}
.login-card{width:100%;max-width:430px;background:#fff;border:1px solid var(--line);border-radius:24px;box-shadow:var(--shadow);padding:28px}
.login-card .brand{border:0;color:var(--text);padding:0;margin-bottom:20px}
.error-box{border:1px solid #fecaca;background:#fef2f2;color:#991b1b;border-radius:12px;padding:11px 12px;margin-bottom:14px}
/* Compatibility layer for the existing device.php markup */
.wrap{max-width:1280px;margin:0 auto;padding:26px}.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px;margin:16px 0;box-shadow:var(--shadow-soft)}
.card h3{margin-top:0;font-size:17px;letter-spacing:-.02em}.msg{background:#eff6ff;border:1px solid #bfdbfe;color:#1e40af;padding:12px 14px;border-radius:12px;word-break:break-word}.msg.error{background:#fef2f2;border-color:#fecaca;color:#991b1b}
.online{color:var(--success);font-weight:800}.offline{color:var(--muted);font-weight:800}.danger{background:var(--danger)!important;color:#fff!important}.gray{background:#64748b!important;color:#fff!important}
.remote-screen-wrap{background:#0b1120!important;border:1px solid #1e293b!important}.remote-screen-stage{border-color:#334155!important}.cmd-window{border-radius:16px!important}.history-table th{background:var(--surface-soft)!important}.media-box,.setting-box,.live-controls{border-color:var(--line)!important;background:#fff!important}.media-status,.history-result{background:var(--surface-soft)!important}
@media(max-width:1100px){.stats-grid,.grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}.hero .panel-body{align-items:flex-start;flex-direction:column}}
@media(max-width:860px){.admin-shell{display:block}.sidebar{position:relative;width:100%;inset:auto;border-radius:0}.sidebar-footer{display:none}.content{margin:0;width:100%;padding:18px}.topbar{align-items:flex-start;flex-direction:column}.stats-grid,.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}.form-grid{grid-template-columns:1fr}.pagination{align-items:flex-start;flex-direction:column}.wrap{padding:18px}}
@media(max-width:560px){.page-title{font-size:24px}.hero-title{font-size:21px}.panel-header{flex-direction:column}.toolbar{align-items:stretch}.toolbar>*{width:100%}.btn,.button,button.btn{width:100%}.row-actions .btn{width:auto}.stat-value{font-size:26px}}
/* Installer & system framework additions */
.install-card{width:min(760px,calc(100% - 32px));max-width:760px}
.form-two{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.divider{border:0;border-top:1px solid var(--border,#dfe5ef);margin:4px 0}
.mode-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.mode-card{display:flex;gap:12px;padding:16px;border:1px solid var(--border,#dfe5ef);border-radius:12px;cursor:pointer;background:#fff}
.mode-card:has(input:checked){border-color:#2563eb;box-shadow:0 0 0 3px rgba(37,99,235,.10)}
.mode-card.danger:has(input:checked){border-color:#dc2626;box-shadow:0 0 0 3px rgba(220,38,38,.10)}
.mode-card input{margin-top:3px}
.mode-card span{display:grid;gap:5px}.mode-card small{color:#64748b;line-height:1.5}
.msg.success{background:#ecfdf5;border:1px solid #a7f3d0;color:#065f46;padding:14px 16px;border-radius:10px;margin-bottom:18px}
@media(max-width:680px){.form-two,.mode-grid{grid-template-columns:1fr}}
.device-workspace-tabs{position:sticky;top:0;z-index:30;display:flex;gap:8px;align-items:center;overflow-x:auto;padding:10px;margin:16px 0 0;background:rgba(244,246,248,.96);border:1px solid #dbe2ea;border-radius:14px;box-shadow:0 8px 24px rgba(15,23,42,.08);backdrop-filter:blur(10px);scrollbar-width:thin}
.device-workspace-tab{display:inline-flex;align-items:center;gap:7px;flex:0 0 auto;margin:0;padding:10px 14px;border:1px solid transparent;border-radius:10px;background:transparent;color:#475569;font-weight:700;white-space:nowrap;box-shadow:none}
.device-workspace-tab:hover{background:#e8eef7;color:#174ea6}.device-workspace-tab.active{background:#1f6feb;color:#fff;border-color:#1f6feb;box-shadow:0 5px 14px rgba(31,111,235,.24)}
.device-workspace-tab:focus-visible{outline:3px solid rgba(31,111,235,.28);outline-offset:2px}.workspace-tab-icon{font-size:16px;line-height:1}
.workspace-context{display:flex;justify-content:space-between;gap:12px;align-items:center;padding:10px 4px 0;color:#64748b}.workspace-context>span{font-size:13px;font-weight:800;text-transform:uppercase;letter-spacing:.06em;color:#334155}.workspace-context small{text-align:right}
.workspace-panel[hidden]{display:none!important}.workspace-panel.active{animation:workspacePanelIn .18s ease-out}@keyframes workspacePanelIn{from{opacity:.35;transform:translateY(4px)}to{opacity:1;transform:none}}
@media(max-width:720px){.device-workspace-tabs{top:0;border-radius:10px;padding:7px}.device-workspace-tab{padding:9px 11px}.workspace-context{align-items:flex-start;flex-direction:column}.workspace-context small{text-align:left}}