:root{--bg:#f4f7fb;--card:#fff;--text:#101827;--muted:#6b7890;--primary:#0d6efd;--primary2:#10b981;--line:#e5ebf3;--dark:#0f172a;--danger:#ef4444;--warning:#f59e0b;--shadow:0 18px 45px rgba(15,23,42,.08);--shadow-sm:0 8px 20px rgba(15,23,42,.06);--radius:22px;--sidebar:286px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--text);background:radial-gradient(circle at 0 0,rgba(13,110,253,.08),transparent 26rem),var(--bg);font-size:16px}a{text-decoration:none;color:var(--primary)}button,input,select,textarea{font:inherit}input,select,textarea{width:100%;border:1px solid var(--line);border-radius:16px;padding:14px 15px;background:#fff;color:var(--text);outline:none;transition:.18s}textarea{resize:vertical}input:focus,select:focus,textarea:focus{border-color:rgba(13,110,253,.55);box-shadow:0 0 0 4px rgba(13,110,253,.10)}label{font-weight:800;font-size:.93rem;display:grid;gap:8px}label small{font-weight:500;color:var(--muted)}code{font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace}.small,small{font-size:.82rem}.muted{color:var(--muted)}.center{text-align:center}.full{width:100%}.wide{grid-column:1/-1}.no-overflow{overflow:hidden}.btn{border:0;border-radius:15px;padding:12px 17px;font-weight:900;display:inline-flex;align-items:center;justify-content:center;gap:8px;cursor:pointer;transition:transform .18s,box-shadow .18s,opacity .18s;white-space:nowrap;min-height:42px}.btn:hover{transform:translateY(-1px)}.btn-primary{background:linear-gradient(135deg,#0d6efd,#05b6ff);color:#fff;box-shadow:0 12px 24px rgba(13,110,253,.24)}.btn-soft{background:#edf5ff;color:var(--primary)}.btn-ghost{background:#fff;border:1px solid var(--line);color:var(--text)}.btn-warning{background:#fff7ed;color:#b45309}.btn-danger{background:#fee2e2;color:#b91c1c}.btn-lg{padding:15px 20px;border-radius:17px}.btn-small{padding:8px 11px;border-radius:12px;font-size:.83rem;min-height:36px}.btn.loading{pointer-events:none;opacity:.78}.btn.loading:before{content:"";width:14px;height:14px;border:2px solid currentColor;border-right-color:transparent;border-radius:999px;animation:spin .75s linear infinite}.icon-btn{border:0;background:#fff;border-radius:14px;width:42px;height:42px;font-weight:900;cursor:pointer}.app-shell{display:flex;min-height:100vh}.sidebar{width:var(--sidebar);background:linear-gradient(180deg,#101b35,#0d162a);color:#fff;padding:22px 16px;position:fixed;inset:0 auto 0 0;overflow:auto;z-index:60}.sidebar-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}.brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:950;font-size:1.22rem}.brand.dark{color:var(--dark)}.brand-mark{display:inline-grid;place-items:center;width:43px;height:43px;border-radius:15px;background:linear-gradient(135deg,var(--primary),var(--primary2));color:#fff;font-weight:950;box-shadow:0 12px 24px rgba(13,110,253,.28)}.sidebar nav{display:grid;gap:8px}.sidebar nav a,.nav-label{color:#aeb9cf;padding:12px 14px;border-radius:15px;font-weight:800;display:flex;align-items:center;gap:10px}.sidebar nav a.active,.sidebar nav a:hover{background:rgba(255,255,255,.10);color:#fff}.nav-label{font-size:.72rem;text-transform:uppercase;letter-spacing:.08em;margin-top:16px;color:#71819a}.sidebar-foot{margin-top:24px;border:1px solid rgba(255,255,255,.1);border-radius:18px;padding:13px;display:flex;gap:10px;align-items:center;color:#dbe6ff}.sidebar-foot small{display:block;color:#91a0b8}.status-dot{width:10px;height:10px;border-radius:99px;background:#10b981;box-shadow:0 0 0 7px rgba(16,185,129,.14)}.sidebar-close{display:none}.sidebar-backdrop{display:none}.main-content{margin-left:var(--sidebar);width:calc(100% - var(--sidebar));padding:24px;max-width:1500px}.topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:20px}.top-left{display:flex;align-items:center;gap:14px}.topbar h1{margin:1px 0 0;font-size:clamp(1.6rem,2.5vw,2.25rem);line-height:1.1}.topbar p{margin:0 0 4px}.top-actions{display:flex;align-items:center;gap:10px}.user-pill{background:#fff;border:1px solid var(--line);padding:10px 14px;border-radius:999px;font-weight:900;box-shadow:var(--shadow-sm)}.mobile-menu{display:none;border:0;background:#fff;border-radius:15px;width:46px;height:46px;font-size:1.2rem;box-shadow:var(--shadow-sm)}.alert{padding:14px 16px;border-radius:17px;margin-bottom:16px;font-weight:800;border:1px solid transparent}.alert.success{background:#ecfdf3;color:#087344;border-color:#bbf7d0}.alert.error{background:#fef2f2;color:#991b1b;border-color:#fecaca}.alert.tiny{font-size:.86rem;padding:11px 12px;margin:10px 0}.quick-hero{display:flex;align-items:center;justify-content:space-between;gap:16px;background:linear-gradient(135deg,#fff,#f8fbff);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:22px;margin-bottom:16px}.quick-hero h2{font-size:clamp(1.35rem,3vw,2.25rem);line-height:1.12;margin:8px 0 8px;max-width:850px}.quick-hero p{color:var(--muted);margin:0;max-width:760px}.eyebrow{font-weight:950;color:var(--primary);background:#eaf3ff;padding:8px 12px;border-radius:999px;display:inline-flex}.hero-actions{display:flex;gap:10px;flex-wrap:wrap}.hero-actions.compact{justify-content:flex-end}.cards-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:16px;margin-bottom:16px}.stat-card,.panel,.feature-card,.auth-card,.install-card,.glass-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}.stat-card{padding:20px;min-height:132px}.stat-card span{color:var(--muted);font-weight:800}.stat-card strong{display:block;font-size:clamp(1.75rem,5vw,2.35rem);margin-top:8px}.stat-card small{color:#91a0b8;font-weight:700}.two-col{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(320px,.9fr);gap:16px}.panel{padding:20px;margin-bottom:16px}.panel-head{display:flex;justify-content:space-between;align-items:flex-start;gap:14px;margin-bottom:16px}.panel-head h2{margin:0;font-size:1.18rem}.link-pill{background:#f1f7ff;border-radius:999px;padding:8px 12px;font-weight:800}.table-wrap{overflow:auto;border-radius:16px}.table-wrap table{width:100%;border-collapse:collapse;min-width:760px}th,td{padding:13px 12px;text-align:left;border-bottom:1px solid var(--line);vertical-align:middle}th{font-size:.78rem;text-transform:uppercase;letter-spacing:.05em;color:var(--muted)}.badge{display:inline-flex;align-items:center;justify-content:center;border-radius:999px;padding:6px 10px;font-weight:950;font-size:.72rem;text-transform:uppercase}.badge.working{background:#dcfce7;color:#166534}.badge.offline{background:#eef2f7;color:#475569}.badge.connecting{background:#fef3c7;color:#92400e}.badge.qr{background:#dbeafe;color:#1d4ed8}.badge.logged_out,.badge.error{background:#fee2e2;color:#991b1b}.badge.in{background:#ecfdf3;color:#047857}.badge.out{background:#eff6ff;color:#1d4ed8}.actions{display:flex;gap:7px;flex-wrap:wrap}.mini-form{display:inline}.inline-form{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:10px;align-items:center}.grid-form{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.form-panel{max-width:980px}.mini-list{display:grid;gap:10px}.mini-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:13px;border:1px solid var(--line);border-radius:16px}.mini-row small{display:block;color:var(--muted);margin-top:3px}.log-list{display:grid;gap:10px}.log-item{display:grid;grid-template-columns:auto 1fr auto;gap:10px;padding:12px;border:1px solid var(--line);border-radius:16px}.log-item p{margin:.2rem 0 0;color:var(--muted)}.dot{width:10px;height:10px;border-radius:999px;margin-top:6px;background:var(--primary)}.dot.in{background:var(--primary2)}.empty{padding:22px;text-align:center;color:var(--muted);border:1px dashed var(--line);border-radius:18px;background:#f9fbff}.step-list{margin:0;display:grid;gap:8px;color:#475569;background:#f8fbff;border:1px solid var(--line);border-radius:18px;padding:16px 18px 16px 36px;min-width:min(360px,100%)}.device-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:14px}.device-card{border:1px solid var(--line);border-radius:20px;padding:16px;background:#fff;box-shadow:var(--shadow-sm)}.device-card-head{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;margin-bottom:14px}.device-card h3{font-size:1.2rem;margin:4px 0}.device-card p{margin:0;color:var(--muted)}.device-id{font-weight:900;color:var(--primary);font-size:.82rem}.device-actions{display:flex;gap:8px;flex-wrap:wrap}.qr-layout{display:grid;grid-template-columns:minmax(280px,420px) minmax(260px,1fr);gap:22px;align-items:start}.qr-box{min-height:360px;border:2px dashed #dce5f3;border-radius:24px;display:grid;place-items:center;background:linear-gradient(180deg,#f8fbff,#fff);padding:18px}.qr-box img{max-width:330px;width:100%;border-radius:18px;background:#fff;box-shadow:0 12px 34px rgba(15,23,42,.12)}.qr-empty{text-align:center;color:var(--muted);display:grid;gap:8px;padding:24px}.qr-empty b{color:var(--text);font-size:1.05rem}.qr-side{display:grid;gap:14px}.metric{display:grid;gap:6px;background:#f8fbff;border:1px solid var(--line);border-radius:18px;padding:16px}.metric span{color:var(--muted);font-weight:800}.metric strong{font-size:clamp(1.5rem,5vw,2rem);line-height:1}.info-box{display:grid;gap:6px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:16px}.info-box b{font-size:.9rem;color:var(--muted)}.info-box span{font-weight:800}.api-box{display:flex;gap:10px;background:#f8fbff;border:1px solid var(--line);padding:14px;border-radius:16px;align-items:center;justify-content:space-between;margin-bottom:14px;overflow:auto}.code-block{background:#0f172a;color:#dbeafe;border-radius:18px;padding:18px;overflow:auto}.limit-form{display:flex;gap:8px;align-items:center}.limit-form input{max-width:110px;padding:8px}.auth-body{min-height:100vh;display:grid;place-items:center;padding:20px;background:radial-gradient(circle at top left,rgba(13,110,253,.15),transparent 32%),radial-gradient(circle at bottom right,rgba(11,191,117,.16),transparent 32%),#f6f8fc}.auth-card,.install-card{width:min(470px,100%);padding:28px}.install-card{width:min(880px,100%)}.auth-head{text-align:center;margin-bottom:22px}.auth-head h1{margin:12px 0 6px}.landing-body{background:#f5f8ff;overflow-x:hidden}.landing-nav{display:flex;justify-content:space-between;align-items:center;padding:24px min(6vw,80px);position:relative;z-index:2}.hero{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center;padding:70px min(6vw,80px) 40px}.hero-copy h1{font-size:clamp(2.1rem,5vw,4.4rem);line-height:1.02;margin:12px 0 18px;color:#0b1220}.hero-copy p{color:#526173;font-size:1.15rem;max-width:680px}.message-preview{background:#111c36;color:#fff;border-radius:20px;padding:18px;margin:26px 0}.message-preview p{color:#aeb9cf}.status-line{font-weight:800}.status-line span{display:inline-block;width:10px;height:10px;border-radius:99px;background:var(--primary2);box-shadow:0 0 0 8px rgba(11,191,117,.12);margin-right:8px}.features{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;padding:20px min(6vw,80px) 70px}.feature-card{padding:24px}.feature-card h3{margin-top:0}.bottom-nav{display:none}#page-loader{position:fixed;inset:0;background:rgba(246,248,252,.96);z-index:9999;display:grid;place-items:center;align-content:center;gap:12px;transition:opacity .25s,visibility .25s}#page-loader.hide{opacity:0;visibility:hidden}.loader-orb{width:54px;height:54px;border-radius:999px;border:5px solid #dfe9ff;border-top-color:var(--primary);animation:spin .75s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}@media(max-width:1120px){:root{--sidebar:0}.sidebar{transform:translateX(-105%);transition:.22s}.sidebar.open{transform:translateX(0)}.sidebar-close{display:inline-grid;place-items:center}.sidebar-backdrop.show{display:block;position:fixed;inset:0;background:rgba(15,23,42,.38);z-index:55}.main-content{margin-left:0;width:100%;padding:18px 18px 92px}.mobile-menu{display:inline-grid;place-items:center}.two-col{grid-template-columns:1fr}.quick-hero{align-items:flex-start}.topbar{align-items:flex-start}.bottom-nav{position:fixed;left:12px;right:12px;bottom:10px;z-index:40;background:rgba(255,255,255,.94);backdrop-filter:blur(14px);border:1px solid var(--line);box-shadow:var(--shadow);border-radius:24px;padding:8px;display:grid;grid-template-columns:repeat(4,1fr);gap:4px}.bottom-nav a{display:grid;place-items:center;gap:2px;color:#64748b;font-weight:900;font-size:1.1rem;border-radius:16px;padding:7px 4px}.bottom-nav a span{font-size:.7rem}.bottom-nav a.active{background:#edf5ff;color:var(--primary)}}@media(max-width:760px){body{font-size:15px}.main-content{padding:14px 14px 90px}.topbar{display:grid;gap:12px}.top-left{align-items:flex-start}.top-actions{flex-wrap:wrap}.quick-hero{display:grid;padding:18px}.hero-actions.compact{justify-content:flex-start}.cards-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.stat-card{padding:15px;min-height:118px}.panel{padding:16px;border-radius:20px}.panel-head{display:grid}.stacked-sm{display:grid}.inline-form{grid-template-columns:1fr}.grid-form{grid-template-columns:1fr}.qr-layout{grid-template-columns:1fr}.qr-box{min-height:300px}.device-list{grid-template-columns:1fr}.device-actions .btn,.device-actions form{flex:1}.device-actions .btn{width:100%}.table-wrap table{min-width:680px}.mini-row{align-items:flex-start}.api-box{display:grid}.hero,.features{grid-template-columns:1fr}.hero{padding:28px 18px}.landing-nav{padding:18px}.hero-copy h1{font-size:2.35rem}}@media(max-width:420px){.cards-grid{grid-template-columns:1fr}.top-actions .btn,.top-actions .user-pill{flex:1;text-align:center;justify-content:center}.qr-box{min-height:280px}.auth-card,.install-card{padding:20px}.btn{width:auto}.features{padding:18px}.landing-nav{gap:10px;align-items:flex-start}.landing-nav>div{display:flex;gap:8px;flex-wrap:wrap;justify-content:flex-end}}