:root{font-family:Inter,Segoe UI,Microsoft YaHei,sans-serif;color:#202428;background:#f4f5f3;font-synthesis:none;letter-spacing:0;--ink: #202428;--muted: #697178;--line: #dfe2df;--surface: #ffffff;--dark: #181b1f;--green: #267a51;--green-soft: #e6f3eb;--blue: #286ea8;--red: #b8473f}*{box-sizing:border-box;touch-action:manipulation}body{margin:0;min-width:320px;min-height:100vh}button,input{font:inherit;letter-spacing:0}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.48}.app-shell{min-height:100vh;background:#f4f5f3}.topbar{height:62px;padding:0 max(18px,calc((100vw - 1120px)/2));display:flex;align-items:center;justify-content:space-between;gap:12px;color:#fff;background:var(--dark);border-bottom:3px solid #4d9a6e}.brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700}.topbar-spacer{width:40px}.page-content{width:min(1120px,calc(100% - 36px));margin:0 auto;padding:32px 0 56px}.page-heading,.device-detail-heading,.section-heading,.device-title-row{display:flex;align-items:center;justify-content:space-between;gap:16px}.page-heading{margin-bottom:24px}.device-detail-heading{margin-bottom:36px}.section-heading{margin-bottom:16px;border-bottom:1px solid var(--line);padding-bottom:12px}h1,h2,p{margin-top:0}h1{margin-bottom:0;font-size:30px;line-height:1.2}h2{margin-bottom:0;font-size:18px}.eyebrow{margin-bottom:6px;color:var(--muted);font-size:12px;font-weight:700;text-transform:uppercase}.primary-button,.secondary-button,.tool-button{min-height:40px;border:0;display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:700}.primary-button{padding:0 17px;color:#fff;background:var(--green);border-radius:6px}.primary-button:hover{background:#1e6743}.secondary-button,.tool-button{padding:0 14px;color:var(--ink);background:#fff;border:1px solid var(--line);border-radius:6px}.secondary-button:hover,.tool-button:hover{border-color:#9aa19d}.full-width{width:100%}.icon-button{width:40px;height:40px;padding:0;border:0;border-radius:50%;display:inline-grid;place-items:center;color:#565e64;background:transparent}.icon-button:hover{background:#edf0ed}.icon-button.light{color:#fff}.icon-button.light:hover{background:#30353a}.icon-button.danger{color:var(--red)}.device-grid{display:grid;gap:12px}.device-card{min-height:98px;padding:18px;display:flex;align-items:center;gap:16px;background:var(--surface);border:1px solid var(--line);border-radius:8px;cursor:pointer;transition:border-color .15s,transform .15s}.device-card:hover{border-color:#aab1ac;transform:translateY(-1px)}.device-icon{width:52px;height:52px;flex:0 0 52px;display:grid;place-items:center;color:var(--green);background:var(--green-soft);border-radius:7px}.device-card-main{min-width:0;flex:1}.device-card-main h2{overflow-wrap:anywhere}.device-card-main p{margin:7px 0 0;color:var(--muted);font:13px ui-monospace,SFMono-Regular,Consolas,monospace;overflow-wrap:anywhere}.card-actions,.remote-tools{display:flex;align-items:center;gap:2px}.status{flex:0 0 auto;padding:5px 8px;display:inline-flex;align-items:center;gap:5px;border-radius:999px;font-size:12px;font-weight:700}.status.online{color:var(--green);background:var(--green-soft)}.status.offline{color:#777;background:#eceeed}.button-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}.remote-card{overflow:hidden;background:var(--surface);border:1px solid var(--line);border-radius:8px}.remote-trigger{width:100%;min-height:168px;padding:24px 14px 18px;border:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:13px;color:var(--ink);background:#fff}.remote-trigger:not(:disabled):hover .signal-disc{color:#fff;background:var(--green)}.remote-trigger strong{max-width:100%;font-size:19px;overflow-wrap:anywhere}.remote-trigger code{min-height:20px;color:var(--blue);font:700 15px ui-monospace,SFMono-Regular,Consolas,monospace;letter-spacing:0}.signal-disc{width:58px;height:58px;display:grid;place-items:center;border-radius:50%;color:var(--green);background:var(--green-soft);transition:background .15s,color .15s,transform .15s}.signal-disc.active{color:#fff;background:var(--green);transform:scale(.9)}.remote-tools{min-height:49px;padding:4px 7px;justify-content:flex-end;border-top:1px solid var(--line);background:#fafbfa}.tool-button{margin-right:auto;min-height:34px;padding:0 10px;font-size:13px}.empty-state{min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;color:var(--muted);border:1px dashed #c7ccc8;border-radius:8px}.notice{padding:11px 13px;margin-bottom:16px;border-radius:6px;font-size:14px}.error-notice,.form-error{color:#932f29;background:#f8e7e5}.success-notice{color:#185d3a;background:var(--green-soft)}.form-error{padding:9px 10px;margin:0;border-radius:5px;font-size:13px}.modal-backdrop{position:fixed;z-index:20;inset:0;padding:18px;display:grid;place-items:center;background:#14171994}.modal{width:min(440px,100%);max-height:calc(100vh - 36px);overflow:auto;background:#fff;border-radius:8px;box-shadow:0 24px 70px #00000040}.modal-header{min-height:62px;padding:0 14px 0 20px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.modal-header h2{font-size:18px}.modal-body{padding:20px}.form-stack{display:grid;gap:17px}.form-stack label,.login-form label{display:grid;gap:7px;color:#4e565c;font-size:13px;font-weight:700}input{width:100%;height:44px;padding:0 12px;color:var(--ink);background:#fff;border:1px solid #cbd0cc;border-radius:5px;outline:none}input:focus{border-color:var(--green);box-shadow:0 0 0 3px #267a511f}.login-page{min-height:100vh;padding:24px;display:grid;place-items:center;background:#181b1f;border-top:5px solid #4d9a6e}.login-panel{width:min(390px,100%);padding:34px;background:#fff;border-radius:8px;box-shadow:0 28px 80px #00000059}.brand-mark{width:52px;height:52px;margin-bottom:24px;display:grid;place-items:center;color:#fff;background:var(--green);border-radius:7px}.login-panel h1{margin-bottom:30px}.login-form{display:grid;gap:16px}.input-with-icon{position:relative}.input-with-icon svg{position:absolute;left:12px;top:13px;color:#747c81}.input-with-icon input{padding-left:40px}.learning-modal{position:relative;padding:34px 28px 28px;text-align:center}.modal-close{position:absolute;right:9px;top:9px}.learning-indicator{width:72px;height:72px;margin:0 auto 20px;display:grid;place-items:center;border-radius:50%;color:var(--green);background:var(--green-soft)}.learning-indicator.listening{animation:signal-pulse 1.4s infinite}.learning-indicator.error,.learning-indicator.timeout{color:var(--red);background:#f8e7e5}.learning-modal h2{margin-bottom:14px;font-size:22px}.captured-code{display:block;margin:12px 0;color:var(--blue);font:800 28px ui-monospace,SFMono-Regular,Consolas,monospace;letter-spacing:0}.learning-message{min-height:40px;margin:0 0 20px;color:var(--muted)}@keyframes signal-pulse{50%{box-shadow:0 0 0 12px #267a511a}}@media(max-width:760px){.page-content{width:min(100% - 24px,1120px);padding-top:22px}.page-heading,.device-detail-heading{align-items:flex-start}.page-heading h1,.device-detail-heading h1{font-size:25px}.button-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:520px){.topbar{padding:0 12px}.page-heading{flex-direction:column}.page-heading .primary-button{width:100%}.device-card{align-items:flex-start;padding:14px;gap:12px}.device-icon{width:44px;height:44px;flex-basis:44px}.device-title-row{align-items:flex-start}.card-actions{flex-direction:column}.button-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.remote-trigger{min-height:150px}.login-page{padding:14px}.login-panel{padding:26px 22px}}