:root{--bg:#f3f6fb;--surface:#fff;--text:#172033;--muted:#697386;--line:#dbe2ed;--primary:#3157d5;--primary-soft:#eaf0ff;--danger:#b42318;--danger-soft:#fff0ee;--success:#087443;--success-soft:#e9f8ef;--shadow:0 12px 32px rgba(34,52,83,.09)}*{box-sizing:border-box}html{font-family:Tahoma,"Segoe UI",Arial,sans-serif;background:var(--bg);color:var(--text)}body{margin:0;min-height:100vh}a{color:inherit;text-decoration:none}button,input,select{font:inherit}.topbar{min-height:68px;background:#10172a;color:#fff;display:flex;align-items:center;gap:28px;padding:10px 4vw;position:sticky;top:0;z-index:10;box-shadow:0 5px 20px rgba(0,0,0,.14)}.brand{display:flex;align-items:center;gap:10px;white-space:nowrap}.brand>span,.brand-mark{display:grid;place-items:center;width:42px;height:42px;border-radius:14px;background:linear-gradient(145deg,#5578f2,#263fa8);color:#fff;font-weight:800;letter-spacing:.5px}.topbar nav{display:flex;gap:6px;flex-wrap:wrap;flex:1}.topbar nav a{padding:9px 11px;border-radius:9px;color:#d7deef}.topbar nav a:hover{background:#202b46;color:#fff}.account{display:flex;align-items:center;gap:10px;white-space:nowrap}.account form{margin:0}.account button{border:1px solid #4a5570;background:transparent;color:#fff;border-radius:8px;padding:7px 11px;cursor:pointer}.container{max-width:1180px;margin:28px auto;padding:0 20px 48px}.hero-card,.page-head{background:linear-gradient(135deg,#fff,#edf2ff);border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow);padding:25px 28px;display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:20px}.hero-card h1,.page-head h1{margin:4px 0 8px;font-size:clamp(25px,4vw,40px)}.page-head h1{font-size:28px}.eyebrow{color:var(--primary);font-weight:700;margin:0}.muted{color:var(--muted);margin:4px 0}.stats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:18px 0}.stat{background:var(--surface);border:1px solid var(--line);border-radius:17px;padding:20px;display:flex;align-items:center;justify-content:space-between;box-shadow:0 5px 16px rgba(34,52,83,.05)}.stat span{color:var(--muted)}.stat strong{font-size:30px}.quick-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.quick-card{background:var(--surface);border:1px solid var(--line);border-radius:17px;padding:21px;display:flex;flex-direction:column;gap:8px;transition:.16s}.quick-card:hover{transform:translateY(-2px);border-color:#aebce5;box-shadow:var(--shadow)}.quick-card b{font-size:18px}.quick-card span{color:var(--muted)}.panel{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:22px;box-shadow:0 5px 18px rgba(34,52,83,.05);margin-bottom:18px}.panel h2{margin-top:0}.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.form-grid>button,.form-grid>.avatar-picker{grid-column:1/-1}label{display:flex;flex-direction:column;gap:7px;font-weight:650;color:#303a4d}input,select{width:100%;border:1px solid #cbd4e2;background:#fff;color:var(--text);border-radius:11px;padding:11px 12px;outline:none}input:focus,select:focus{border-color:#6380df;box-shadow:0 0 0 3px rgba(66,98,210,.12)}input:disabled{background:#f2f4f8;color:#697386}.button{display:inline-flex;justify-content:center;align-items:center;border:1px solid #c7d0df;background:#fff;color:#26334c;border-radius:10px;padding:10px 16px;cursor:pointer;font-weight:700}.button.primary{background:var(--primary);border-color:var(--primary);color:#fff}.button.full{width:100%}.danger-button{border-color:#f1aaa3;color:var(--danger);background:var(--danger-soft)}.alert{border-radius:12px;padding:12px 14px;margin:14px 0;border:1px solid}.alert.danger{color:var(--danger);background:var(--danger-soft);border-color:#f2b8b2}.alert.success{color:var(--success);background:var(--success-soft);border-color:#a8dcc0}.notice{margin:15px 0;background:#f5f7fb;border:1px solid var(--line);color:#536078;border-radius:11px;padding:11px 13px}.optional{color:var(--muted);font-weight:400;font-size:12px}.login-shell{min-height:calc(100vh - 50px);display:grid;place-items:center;padding:30px;background:radial-gradient(circle at top right,#dfe7ff,transparent 38%),var(--bg)}.login-card{width:min(440px,100%);background:#fff;border:1px solid var(--line);border-radius:22px;padding:30px;box-shadow:var(--shadow)}.login-card.wide{width:min(500px,100%)}.login-card .brand-mark{margin:0 auto 15px}.login-card h1{text-align:center;margin:5px 0}.login-card>.muted{text-align:center;margin-bottom:22px}.login-card form{display:grid;gap:15px}.code-input{text-align:center;font-size:25px;font-weight:800;letter-spacing:12px;padding-right:24px}.text-link{display:block;text-align:center;color:var(--primary);margin-top:16px}.avatar{display:grid;place-items:center;width:52px;height:52px;border-radius:50%;background:linear-gradient(145deg,#eef2ff,#dfe7ff);border:1px solid #cbd6fb;font-size:28px;flex:0 0 auto}.avatar-lg{width:66px;height:66px;font-size:35px}.avatar-xl{width:86px;height:86px;font-size:48px}.avatar-picker{border:1px solid var(--line);border-radius:14px;padding:15px;display:flex;flex-wrap:wrap;gap:10px}.avatar-picker legend{padding:0 8px;font-weight:700}.avatar-option{display:block;position:relative}.avatar-option input{position:absolute;opacity:0;width:1px;height:1px}.avatar-option span{display:grid;place-items:center;width:52px;height:52px;border-radius:50%;font-size:27px;border:2px solid transparent;background:#f1f4fb;cursor:pointer}.avatar-option input:checked+span{border-color:var(--primary);background:var(--primary-soft);box-shadow:0 0 0 3px rgba(49,87,213,.12)}.member-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-bottom:20px}.member-card{background:#fff;border:1px solid var(--line);border-radius:17px;padding:18px;display:flex;align-items:center;gap:13px;flex-wrap:wrap}.member-main{flex:1;min-width:120px}.member-main h3{margin:0 0 4px}.member-main span,.member-main small{display:block;color:var(--muted);margin-top:3px}.member-card details{width:100%;border-top:1px solid var(--line);padding-top:10px}.member-card summary{cursor:pointer;color:var(--primary);font-weight:700}.compact-form{display:grid;gap:8px;margin:12px 0}.pill{display:inline-flex;border-radius:999px;padding:5px 9px;background:#edf1f7;color:#536078;font-size:12px;font-weight:700}.pill.primary{background:var(--primary-soft);color:var(--primary)}.muted-pill{background:#f4f4f4;color:#777}.table-wrap{overflow:auto}table{border-collapse:collapse;width:100%;min-width:760px}th,td{text-align:right;border-bottom:1px solid var(--line);padding:12px 10px}th{color:#566078;font-size:13px;background:#f7f9fc}.empty-state{text-align:center;padding:42px 16px;color:var(--muted)}.session-list{display:grid;gap:12px}.session-card{display:flex;align-items:center;justify-content:space-between;gap:15px}.session-card h3{margin:0 0 7px}.session-card p,.session-card small{display:block;margin:4px 0;color:var(--muted)}.error-card{text-align:center;max-width:600px;margin:80px auto}footer{text-align:center;color:#8490a4;font-size:12px;padding:20px}@media(max-width:900px){.topbar{align-items:flex-start;flex-wrap:wrap}.topbar nav{order:3;width:100%;overflow:auto;flex-wrap:nowrap}.account{margin-right:auto}.member-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:640px){.container{padding:0 12px}.topbar{padding:10px 12px}.account>span{display:none}.stats-grid,.quick-grid,.form-grid,.member-grid{grid-template-columns:1fr}.hero-card,.page-head{padding:20px}.hero-card h1{font-size:27px}.avatar-xl{width:68px;height:68px;font-size:36px}.session-card{align-items:flex-start;flex-direction:column}.login-shell{padding:15px}.login-card{padding:22px}}

/* Stage 5 device control */
.pairing-result{border:2px solid #4f46e5;text-align:center}
.pair-code{font-size:2.2rem;font-weight:800;letter-spacing:.28rem;margin:1rem auto;padding:1rem 1.4rem;border-radius:16px;background:#eef2ff;max-width:360px}
.sub-list{margin-top:1rem;border-top:1px solid #e5e7eb;padding-top:1rem}
.sub-list>div{display:flex;justify-content:space-between;gap:1rem;padding:.55rem 0;border-bottom:1px dashed #e5e7eb}
.block{display:block;margin-top:.25rem;color:#64748b}
.inline-form{display:flex;align-items:center;gap:.45rem;min-width:250px}
.inline-form select{min-width:130px}
.policy-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:1rem}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:.75rem}
.check{display:flex!important;align-items:center;gap:.6rem}
.check input{width:auto!important}
textarea{width:100%;box-sizing:border-box;border:1px solid #cbd5e1;border-radius:10px;padding:.75rem;font:inherit;background:#fff}
@media(max-width:760px){.inline-form{min-width:210px;flex-wrap:wrap}.pair-code{font-size:1.7rem;letter-spacing:.18rem}.two-col{grid-template-columns:1fr}}