@import"https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap";*{box-sizing:border-box}:root,[data-theme=light]{color-scheme:light;--bg: #f3f6f8;--surface: #ffffff;--surface-alt: #f8fafb;--text: #172b3a;--muted: #718096;--border: #e3e9ed;--primary: #159b78;--primary-hover: #108365;--sidebar: #142b3a;--sidebar-text: #d5e1e8;--shadow: 0 8px 30px rgba(22, 45, 60, .06);--success: #159b78;--danger: #dc5555;--card: #ffffff;--background: #f3f6f8;--accent: #159b78}[data-theme=dark]{color-scheme:dark;--bg: #0b1420;--surface: #142130;--surface-alt: #192a3b;--text: #edf4f7;--muted: #94a8b7;--border: #293d50;--primary: #20b486;--primary-hover: #35c99b;--sidebar: #091521;--sidebar-text: #d5e1e8;--shadow: 0 8px 30px rgba(0, 0, 0, .18);--success: #20b486;--danger: #ef7373;--card: #142130;--background: #0b1420;--accent: #20b486}html{min-height:100%}body{margin:0;min-height:100vh;font-family:Inter,Arial,sans-serif;background:var(--bg);color:var(--text);transition:background .2s,color .2s}button,input{font:inherit}button{cursor:pointer}.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px;background:radial-gradient(circle at 15% 15%,#173b38 0,transparent 35%),radial-gradient(circle at 85% 85%,#172b46 0,transparent 35%),#0b1120}.login-card{width:100%;max-width:440px;padding:42px;border:1px solid #263449;border-radius:20px;background:#111b2b;color:#f8fafc;box-shadow:0 25px 80px #0006}.brand{text-align:center;margin-bottom:30px}.brand-icon{width:54px;height:54px;margin:0 auto 14px;display:grid;place-items:center;border-radius:15px;background:#20b486;color:#fff;font-size:28px;font-weight:800;box-shadow:0 8px 25px #20b48640}.brand h1{margin:0;letter-spacing:5px;font-size:25px}.brand span{display:block;margin-top:8px;color:#8292a8;font-size:10px;letter-spacing:3px}.login-heading{margin-bottom:28px}.login-heading h2{margin:0 0 9px;font-size:25px}.login-heading p{margin:0;color:#91a0b5;font-size:14px}form{display:flex;flex-direction:column;gap:12px}form label{margin-top:8px;color:inherit;font-size:13px;font-weight:600}form input{width:100%;min-height:46px;padding:13px 14px;border:1px solid #33445c;border-radius:9px;outline:none;background:#0c1728;color:#fff;font-size:14px;transition:border-color .2s,box-shadow .2s}form input:focus{border-color:#20b486;box-shadow:0 0 0 3px #20b4861f}form button{min-height:46px;margin-top:18px;padding:13px 18px;border:0;border-radius:9px;background:#20b486;color:#fff;font-size:14px;font-weight:700;cursor:pointer;transition:background .2s,transform .2s}form button:hover{background:#169b72;transform:translateY(-1px)}.login-footer{margin-top:34px;text-align:center;color:#718198;font-size:11px;line-height:1.8}.dashboard{min-height:100vh;display:flex;background:var(--bg);color:var(--text)}.sidebar{width:260px;min-width:260px;min-height:100vh;padding:28px 18px;display:flex;flex-direction:column;background:var(--sidebar);color:#fff}.sidebar .brand{text-align:left;padding:0 12px;margin-bottom:48px}.sidebar .brand-icon{margin:0 0 14px}.sidebar .brand h1{font-size:21px}.sidebar .brand span{font-size:9px}.sidebar nav{display:flex;flex-direction:column;gap:7px}.sidebar nav button,.logout{width:100%;padding:14px 16px;border:0;border-radius:9px;background:transparent;color:var(--sidebar-text);text-align:left;font-size:14px;transition:background .2s,color .2s}.sidebar nav button:hover,.sidebar nav button.active{background:#20b4862b;color:#46d5a9}.logout{margin-top:auto;color:#f3a0a0}.logout:hover{background:#dc555521}.dashboard-content{width:100%;min-width:0;padding:36px}.dashboard-header{display:flex;align-items:center;justify-content:space-between;gap:20px;padding-bottom:28px;margin-bottom:32px;border-bottom:1px solid var(--border)}.dashboard-header h2{margin:0 0 7px;font-size:25px;font-weight:700}.dashboard-header p{margin:0;color:var(--muted);font-size:14px}.header-actions{display:flex;align-items:center;justify-content:flex-end;gap:16px;flex-wrap:wrap}.header-actions>span{color:var(--muted);font-size:13px}.theme-toggle{border:1px solid var(--border);background:var(--surface);color:var(--text);cursor:pointer;transition:background .2s,border-color .2s}.theme-toggle:hover{border-color:var(--primary)}.theme-toggle-round{width:44px;height:44px;min-width:44px;padding:0;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;font-size:23px;line-height:1;flex-shrink:0}.page-title{margin:0 0 22px;font-size:21px}.stats-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;margin-bottom:28px}.stat-card{min-width:0;padding:24px;border:1px solid var(--border);border-radius:13px;background:var(--surface);box-shadow:var(--shadow);transition:transform .2s,box-shadow .2s}.stat-card:hover{transform:translateY(-2px)}.stat-card span{display:block;margin-bottom:18px;color:var(--muted);font-size:13px}.stat-card strong{display:block;color:var(--primary);font-size:34px;font-weight:800}.panel{padding:27px;margin-bottom:22px;border:1px solid var(--border);border-radius:13px;background:var(--surface);box-shadow:var(--shadow)}.panel h2,.panel h3{margin-top:0;font-size:18px;color:var(--text)}.panel p{color:var(--muted);font-size:14px;line-height:1.7}.panel small{color:var(--muted);overflow-wrap:anywhere}.panel form{max-width:440px;margin-top:20px}.panel form label{color:var(--text)}.panel form input{background:var(--surface-alt);color:var(--text);border-color:var(--border)}.panel form input::placeholder{color:var(--muted)}.panel form button{background:var(--primary)}.panel form button:hover{background:var(--primary-hover)}.device-header{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:24px}.device-header h2{margin:0 0 7px}.device-header p{margin:0}.device-header>button{min-height:44px;padding:11px 20px;border:0;border-radius:9px;background:var(--primary);color:#fff;font-size:14px;font-weight:700;transition:background .2s,transform .2s}.device-header>button:hover{background:var(--primary-hover);transform:translateY(-1px)}.device-form{max-width:620px;padding:24px;margin:20px 0 28px;border:1px solid var(--border);border-radius:13px;background:var(--surface-alt)}.device-form h3{margin:0 0 12px;font-size:17px}.device-form input{background:var(--surface);color:var(--text);border-color:var(--border)}.device-form input::placeholder{color:var(--muted)}.device-form button{background:var(--primary)}.device-form button:hover{background:var(--primary-hover)}.device-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:20px}.device-list .stat-card{padding:22px}.device-list .stat-card h3{margin:0 0 12px;font-size:17px;color:var(--text)}.device-list .stat-card p{margin:7px 0;font-size:13px}.notice{padding:14px 18px;margin:16px 0;border:1px solid rgba(220,85,85,.2);border-radius:9px;background:#dc55551a;color:var(--danger);font-size:13px;line-height:1.6}button:disabled{opacity:.6;cursor:not-allowed}@media(max-width:1000px){.stats-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.sidebar{width:220px;min-width:220px}}@media(max-width:700px){.dashboard{flex-direction:column}.sidebar{width:100%;min-width:0;min-height:auto;padding:18px}.sidebar .brand{margin-bottom:20px}.sidebar nav{display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}.logout{margin-top:15px}.dashboard-content{padding:22px 16px}.dashboard-header{align-items:flex-start;flex-direction:column}.header-actions{justify-content:flex-start}.stats-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.stat-card{padding:16px}.stat-card strong{font-size:27px}.device-header{align-items:flex-start;flex-direction:column}.device-list{grid-template-columns:1fr}.device-form{padding:18px}.panel{padding:20px}.login-card{padding:28px 22px}}@media(max-width:380px){.stats-grid{grid-template-columns:1fr}}button:focus-visible,input:focus-visible{outline:2px solid var(--primary);outline-offset:3px}@media(prefers-reduced-motion:reduce){*,*:before,*:after{transition:none!important;animation:none!important}}