:root{--purple-50:#faf5ff;--purple-100:#f3e8ff;--purple-200:#e9d5ff;--purple-400:#c084fc;--purple-500:#a855f7;--purple-600:#9333ea;--purple-700:#7e22ce;--gray-50:#f9fafb;--gray-100:#f3f4f6;--gray-200:#e5e7eb;--gray-300:#d1d5db;--gray-400:#9ca3af;--gray-500:#6b7280;--gray-600:#4b5563;--gray-700:#374151;--gray-800:#1f2937;--gray-900:#111827;--red-500:#ef4444;--red-600:#dc2626;--green-500:#22c55e;--green-600:#16a34a;--radius:8px;--radius-lg:12px;--shadow-sm:0 1px 2px rgba(0,0,0,.05);--shadow-lg:0 10px 15px rgba(0,0,0,.1),0 4px 6px rgba(0,0,0,.05)}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;background:var(--gray-50);color:var(--gray-800);line-height:1.6;min-height:100vh}
a{color:var(--purple-600);text-decoration:none}a:hover{color:var(--purple-700)}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
.page{min-height:100vh;display:flex;flex-direction:column}
.content{flex:1;padding:24px 0}
.header{background:#fff;border-bottom:1px solid var(--gray-200);padding:12px 0;position:sticky;top:0;z-index:100}
.header .container{display:flex;align-items:center;justify-content:space-between}
.header .logo{font-size:18px;font-weight:700;color:var(--purple-700)}
.header nav{display:flex;gap:4px;align-items:center;flex-wrap:wrap}
.header nav a{padding:5px 12px;border-radius:var(--radius);font-size:13px;font-weight:500;color:var(--gray-600);transition:all .15s}
.header nav a:hover,.header nav a.active{background:var(--purple-50);color:var(--purple-700)}
.card{background:#fff;border:1px solid var(--gray-200);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);padding:20px;margin-bottom:16px}
.card h2,.card h3{font-size:16px;font-weight:600;color:var(--gray-900);margin-bottom:12px}
.card-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px;gap:12px;flex-wrap:wrap}
.card-header h2{margin:0}
.btn{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border-radius:var(--radius);font-size:14px;font-weight:500;border:none;cursor:pointer;transition:all .15s;text-decoration:none;white-space:nowrap}
.btn-primary{background:var(--purple-600);color:#fff}.btn-primary:hover{background:var(--purple-700);color:#fff}
.btn-secondary{background:#fff;color:var(--gray-700);border:1px solid var(--gray-300)}.btn-secondary:hover{background:var(--gray-50)}
.btn-danger{background:var(--red-500);color:#fff}.btn-danger:hover{background:var(--red-600);color:#fff}
.btn-sm{padding:4px 10px;font-size:13px}
.btn-ghost{background:none;color:var(--gray-500);padding:4px 8px}.btn-ghost:hover{color:var(--purple-600);background:var(--purple-50)}
.form-group{margin-bottom:14px}
.form-group label{display:block;font-size:14px;font-weight:500;color:var(--gray-700);margin-bottom:4px}
.form-input{width:100%;padding:8px 12px;border:1px solid var(--gray-300);border-radius:var(--radius);font-size:14px;background:#fff;color:var(--gray-800);transition:border-color .15s}
.form-input:focus{outline:none;border-color:var(--purple-500);box-shadow:0 0 0 3px rgba(168,85,247,.15)}
textarea.form-input{resize:vertical}
.alert{padding:10px 14px;border-radius:var(--radius);font-size:14px;margin-bottom:12px}
.alert-error{background:#fef2f2;color:#991b1b;border:1px solid #fecaca}
.alert-success{background:#f0fdf4;color:#166534;border:1px solid #bbf7d0}
.login-wrapper{display:flex;align-items:center;justify-content:center;min-height:100vh;padding:20px;background:linear-gradient(135deg,var(--purple-50),var(--gray-50))}
.login-card{width:100%;max-width:400px;background:#fff;border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);padding:36px 28px}
.login-card h1{text-align:center;font-size:22px;font-weight:700;color:var(--gray-900);margin-bottom:6px}
.login-card .subtitle{text-align:center;color:var(--gray-500);font-size:14px;margin-bottom:24px}
.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:12px;margin-bottom:16px}
.stat-card{background:#fff;border:1px solid var(--gray-200);border-radius:var(--radius-lg);padding:16px;box-shadow:var(--shadow-sm)}
.stat-card .label{font-size:13px;color:var(--gray-500);margin-bottom:2px}
.stat-card .value{font-size:24px;font-weight:700;color:var(--gray-900)}
.badge{display:inline-block;padding:2px 8px;border-radius:100px;font-size:12px;font-weight:500}
.badge-purple{background:var(--purple-100);color:var(--purple-700)}
.badge-gray{background:var(--gray-100);color:var(--gray-600)}
.table-wrapper{overflow-x:auto;margin:0 -20px;padding:0 20px}
table{width:100%;border-collapse:collapse;font-size:14px}
thead th{text-align:left;padding:8px 10px;font-weight:600;color:var(--gray-500);font-size:12px;text-transform:uppercase;letter-spacing:.05em;border-bottom:1px solid var(--gray-200);white-space:nowrap}
tbody td{padding:10px;border-bottom:1px solid var(--gray-100);vertical-align:middle}
tbody tr:hover{background:var(--gray-50)}
.file-meta{font-size:12px;color:var(--gray-400)}
.status-dot{width:8px;height:8px;border-radius:50%;display:inline-block}
.status-dot.on{background:var(--green-500)}
.status-dot.off{background:var(--gray-300)}
.device-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:12px;margin-top:12px}
.device-card{background:#fff;border:1px solid var(--gray-200);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);transition:border-color .15s;overflow:hidden}
.device-card:hover{border-color:var(--purple-400)}
.device-card.offline{opacity:.7}
.device-card-body{padding:10px 14px 14px}
.device-thumb-link{display:block;text-decoration:none}
.device-thumb{width:100%;aspect-ratio:9/16;background:var(--gray-100);background-repeat:no-repeat;display:flex;align-items:center;justify-content:center;overflow:hidden;border-bottom:1px solid var(--gray-200);image-rendering:auto}
.thumb-placeholder{color:var(--gray-400);font-size:13px}
.device-header{display:flex;align-items:center;gap:8px;margin-bottom:8px}
.device-check{accent-color:var(--purple-600)}
.device-name{font-weight:600;font-size:14px;color:var(--gray-900)}
.device-info{font-size:12px;color:var(--gray-500);display:flex;gap:8px;margin-bottom:6px}
.device-stats{display:flex;gap:10px;font-size:12px;color:var(--gray-500);margin-bottom:6px;flex-wrap:wrap}
.device-stats .warn{color:var(--red-500);font-weight:600}
.device-meta{font-size:11px;color:var(--gray-400);display:flex;gap:8px;margin-bottom:8px}
.device-actions{display:flex;gap:6px}
.control-layout{display:grid;grid-template-columns:1fr 360px;gap:16px}
.screen-panel{background:#000;border-radius:var(--radius-lg);overflow:hidden}
.screen-container{position:relative;background:#111;max-height:80vh;display:flex;align-items:center;justify-content:center;overflow:hidden}
.screen-canvas{cursor:crosshair;display:block}
.screen-overlay{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;color:#fff;font-size:16px;background:rgba(0,0,0,.6);cursor:pointer}
.screen-controls{display:flex;gap:6px;padding:10px;flex-wrap:wrap;justify-content:center;background:#1a1a1a}
.screen-controls .btn{color:#ccc;border-color:#444}
.screen-controls .btn:hover{background:#333;color:#fff}
.side-panel{display:flex;flex-direction:column;gap:12px}
.side-panel .card{margin:0;padding:14px}
.side-panel .card h3{font-size:14px;margin-bottom:8px}
.shell-output{background:var(--gray-900);color:#22c55e;padding:10px;border-radius:var(--radius);font-size:12px;max-height:200px;overflow:auto;margin-top:8px;white-space:pre-wrap;word-break:break-all}
.device-info-list{font-size:13px;color:var(--gray-600);display:flex;flex-direction:column;gap:4px}
.info-table{font-size:14px}
.info-table td{padding:6px 10px;border-bottom:1px solid var(--gray-100)}
.info-table td:first-child{color:var(--gray-500);font-weight:500;width:100px}
.toast-container{position:fixed;top:20px;right:20px;z-index:2000;display:flex;flex-direction:column;gap:8px}
.toast{padding:10px 18px;border-radius:var(--radius);font-size:14px;box-shadow:var(--shadow-lg);animation:slideIn .3s ease;max-width:360px}
.toast-success{background:#166534;color:#fff}.toast-error{background:#991b1b;color:#fff}
@keyframes slideIn{from{opacity:0;transform:translateX(30px)}to{opacity:1;transform:translateX(0)}}
.modal-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.4);z-index:1000;align-items:center;justify-content:center;padding:20px}
.modal-overlay.show{display:flex}
.modal{background:#fff;border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);padding:24px;width:100%;max-width:420px}
.modal h3{font-size:16px;font-weight:600;margin-bottom:12px}
.error-page{text-align:center;padding:80px 20px}
.error-page h1{font-size:48px;color:var(--purple-600);font-weight:700}
.error-page p{color:var(--gray-500);margin-top:8px}
@media(max-width:768px){
    .header .container{flex-wrap:wrap;gap:6px}.header nav{gap:2px}
    .control-layout{grid-template-columns:1fr}
    .device-grid{grid-template-columns:1fr}
    .stats-grid{grid-template-columns:repeat(2,1fr)}
}