:root{--navy:#102f2a;--canvas:#f4f6f3;--soft:#edf5f0;--ux-line:#dfe7e1}
body{background:var(--canvas)}.shell{grid-template-columns:252px minmax(0,1fr)}
#app-sidebar{background:linear-gradient(180deg,#12372e,#102f2a);padding:25px 16px 18px;box-shadow:8px 0 28px rgba(15,48,40,.08)}
#app-sidebar .brand{padding:0 9px 22px;margin-bottom:5px;border-bottom:1px solid rgba(255,255,255,.08)}#app-sidebar nav{gap:2px}
.nav-section{margin:19px 12px 7px;color:#7fa399;font-size:10px;font-weight:800;letter-spacing:.13em;text-transform:uppercase}
#app-sidebar nav button{display:flex;align-items:center;gap:10px;min-height:40px;padding:9px 12px;border-radius:8px;font-size:13px;font-weight:600}
#app-sidebar nav button.active{background:rgba(255,255,255,.09);box-shadow:inset 3px 0 #8fd1b0}
main{padding:0 34px 42px}#app-header{min-height:78px;margin:0 -34px 28px;padding:14px 34px;background:rgba(255,255,255,.92);border-bottom:1px solid var(--ux-line)}
#app-header h1{font-size:24px;letter-spacing:-.4px}.project-switcher{display:flex;gap:9px;align-items:center}.project-switcher select{min-width:260px;background:#fff}#view{max-width:1450px;margin:0 auto}
.cards{gap:16px}.card,.panel,.admin-panel,.connection-card{border-color:var(--ux-line);border-radius:13px;box-shadow:0 2px 7px rgba(22,60,49,.035)}.card{padding:19px}.card strong{font-size:27px;letter-spacing:-.5px}.card p{margin:5px 0 0;color:var(--muted)}.panel{padding:22px}.panel-head{margin-bottom:18px}.table th{background:#fafcfb}.table tr:hover td{background:#fbfdfb}
.ux-welcome{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(300px,.75fr);gap:18px;margin-bottom:20px}.ux-hero{padding:27px 29px;border-radius:15px;background:linear-gradient(125deg,#12372e,#205748);color:#fff;box-shadow:0 10px 30px rgba(18,55,46,.12)}.ux-hero .eyebrow{color:#a9d9bf}.ux-hero h2{font-size:22px;margin:5px 0 8px}.ux-hero p{max-width:680px;color:#c8ddd4;margin:0 0 20px}.ux-actions{display:flex;gap:9px;flex-wrap:wrap}.ux-hero button{background:#fff;color:#174537}.ux-hero button.secondary{background:rgba(255,255,255,.12);color:#fff;border:1px solid rgba(255,255,255,.18)}
.sandbox-card{padding:22px;border:1px solid #dce7df;border-radius:15px;background:#fff}.sandbox-card h3{margin:3px 0 8px;font-size:16px}.sandbox-card p{color:var(--muted);font-size:13px}.sandbox-badge{display:inline-flex;padding:5px 8px;border-radius:6px;background:#e7f4eb;color:#28704a;font-size:11px;font-weight:800}.ux-status{display:flex;gap:8px;align-items:center;margin-top:14px;font-size:12px;color:var(--muted)}.ux-dot{width:8px;height:8px;border-radius:50%;background:#43a56f}
.empty{min-height:150px;padding:30px;color:var(--muted)}.login-card{max-width:430px}.login-card input:focus,.form-grid input:focus,select:focus,textarea:focus{outline:3px solid rgba(73,143,105,.15);border-color:#6ba47f}
@media(max-width:1050px){.ux-welcome{grid-template-columns:1fr}.shell{grid-template-columns:220px minmax(0,1fr)}}@media(max-width:980px){main{padding:0 20px 30px}#app-header{margin:0 -20px 22px;padding:14px 20px}.shell{grid-template-columns:1fr}.project-switcher{width:100%}.project-switcher select{min-width:0;flex:1}}@media(max-width:620px){.ux-hero{padding:22px}.project-switcher{align-items:stretch;flex-direction:column}.cards{grid-template-columns:1fr 1fr}}