:root{--et-primary-rgb:91,92,226;--et-accent-rgb:20,184,166;--et-sidebar-rgb:16,20,38;--et-accent-soft:#e9fbf8;--et-gate-bg:#090d1a;--et-control-height:46px;--et-content-gap:28px}
.app-sidebar{background:radial-gradient(circle at 5% 0%,rgba(var(--et-primary-rgb),.34),transparent 38%),var(--et-sidebar)}
.brand-mark,.scan-icon,.gate-brand-mark{background:linear-gradient(145deg,var(--et-primary),var(--et-primary-dark))!important;box-shadow:0 12px 25px rgba(var(--et-primary-rgb),.34)!important}
.app-nav .nav-link.active{background:linear-gradient(135deg,var(--et-primary),var(--et-primary-dark));box-shadow:0 12px 25px rgba(var(--et-primary-rgb),.25)}
.btn-primary{background:linear-gradient(135deg,var(--et-primary),var(--et-primary-dark));border-color:var(--et-primary-dark);box-shadow:0 7px 16px rgba(var(--et-primary-rgb),.2)}.btn-primary:hover,.btn-primary:focus{background:var(--et-primary-dark);border-color:var(--et-primary-dark)}
.form-control,.form-select{min-height:var(--et-control-height)}.form-control:focus,.form-select:focus,.form-check-input:focus{border-color:var(--et-primary);box-shadow:0 0 0 .22rem rgba(var(--et-primary-rgb),.14)}.form-check-input:checked{background-color:var(--et-primary);border-color:var(--et-primary)}
.app-content{padding:var(--et-content-gap)}.page-eyebrow{color:var(--et-primary)}.auth-showcase{background:radial-gradient(circle at 15% 12%,rgba(var(--et-accent-rgb),.28),transparent 30%),linear-gradient(145deg,var(--et-sidebar),var(--et-primary-dark))!important}.avatar{background:var(--et-primary-soft);color:var(--et-primary-dark)}.status-info{background:var(--et-primary-soft);color:var(--et-primary-dark)}
[data-bs-theme="dark"]{--et-bg:#0e1320;--et-surface:#151b2b;--et-surface-2:#111827;--et-text:#eef2ff;--et-muted:#9ba7bd;--et-border:#273149}[data-bs-theme="dark"] .app-topbar{background:rgba(14,19,32,.9)}[data-bs-theme="dark"] .form-control,[data-bs-theme="dark"] .form-select,[data-bs-theme="dark"] .btn-light{background-color:#1c2436;border-color:#2b3650;color:#eef2ff}
.theme-swatch{width:24px;height:24px;border-radius:8px;border:2px solid rgba(255,255,255,.82);box-shadow:0 0 0 1px rgba(20,30,55,.14)}.theme-preset-card{position:relative;display:block;border:1px solid var(--et-border);border-radius:16px;padding:12px;cursor:pointer;transition:.18s ease}.theme-preset-card:hover,.theme-preset-card:has(input:checked){border-color:var(--et-primary);box-shadow:0 0 0 3px rgba(var(--et-primary-rgb),.1);transform:translateY(-1px)}.theme-preset-card input{position:absolute;opacity:0;pointer-events:none}
.theme-preview-shell{overflow:hidden;border-radius:22px;border:1px solid rgba(0,0,0,.08);min-height:360px;display:grid;grid-template-columns:88px 1fr;background:var(--preview-bg,#f4f6fb);color:var(--preview-text,#172033)}.theme-preview-sidebar{background:var(--preview-sidebar,#101426);padding:16px 12px}.theme-preview-nav{height:34px;border-radius:10px;margin-top:12px;background:var(--preview-primary)}.theme-preview-main{padding:18px}.theme-preview-topbar,.theme-preview-card{background:var(--preview-surface,#fff);border:1px solid rgba(0,0,0,.08);border-radius:var(--preview-radius,18px)}.theme-preview-topbar{height:48px;margin-bottom:16px}.theme-preview-card{padding:16px;margin-bottom:12px}.theme-preview-button{display:inline-flex;width:100px;height:34px;border-radius:10px;background:var(--preview-primary)}