.admin-sidebar{background:linear-gradient(180deg,#0A2D23 0%,#0E4936 54%,#081F19 100%);border-right:1px solid rgba(255,255,255,.08);box-shadow:18px 0 38px rgba(3,22,16,.12)}
.admin-brand{padding:8px 10px 20px}.admin-brand b{color:#fff}.admin-brand span{color:#E2BD55}
.admin-sidebar nav{gap:9px}
.master-nav-group{--group-accent:#36C988;border:1px solid rgba(255,255,255,.09);border-radius:15px;background:rgba(255,255,255,.035);overflow:hidden;transition:border-color .16s ease,background .16s ease}
.master-nav-group[data-tone="inicio"]{--group-accent:#35CC88}.master-nav-group[data-tone="operacion"]{--group-accent:#52C7B7}.master-nav-group[data-tone="apariencia"]{--group-accent:#E0B84B}.master-nav-group[data-tone="sistema"]{--group-accent:#8FA9DB}
.master-nav-group:not(.is-collapsed){border-color:color-mix(in srgb,var(--group-accent) 48%,rgba(255,255,255,.12));background:rgba(255,255,255,.06)}
.master-nav-group-toggle{width:100%;min-height:48px;display:flex;align-items:center;justify-content:space-between;gap:10px;padding:0 13px;border:0;background:transparent;color:#F7FBF9;cursor:pointer;text-align:left}
.master-nav-group-toggle:hover{background:rgba(255,255,255,.055)}
.master-nav-group-title{font:800 11px var(--font-display);letter-spacing:.14em;color:color-mix(in srgb,var(--group-accent) 78%,#fff)}
.master-nav-chevron{width:25px;height:25px;display:grid;place-items:center;border-radius:999px;background:rgba(255,255,255,.08);color:#fff;font:800 17px/1 var(--font-display);transition:transform .18s ease,background .18s ease}
.master-nav-group:not(.is-collapsed) .master-nav-chevron{transform:rotate(180deg);background:color-mix(in srgb,var(--group-accent) 28%,transparent)}
.master-nav-group-items{display:grid;gap:3px;padding:2px 7px 9px 10px}.master-nav-group-items[hidden]{display:none}
.master-nav-group .side-link{position:relative;width:100%;padding:10px 11px;border-radius:10px;color:rgba(255,255,255,.78);font-size:12px}
.master-nav-group .side-link:hover{background:rgba(255,255,255,.07);color:#fff}
.master-nav-group .side-link.active{background:color-mix(in srgb,var(--group-accent) 20%,rgba(255,255,255,.045));color:#fff;box-shadow:inset 3px 0 var(--group-accent)}
.master-nav-group .side-link.active:after{content:"";position:absolute;right:10px;top:50%;width:5px;height:5px;border-radius:50%;background:var(--group-accent);transform:translateY(-50%)}
.admin-note{border-color:rgba(226,189,85,.32);background:rgba(4,26,20,.52);box-shadow:inset 0 1px 0 rgba(255,255,255,.05)}
@media(max-width:1050px){.admin-sidebar nav{display:grid;grid-template-columns:repeat(2,minmax(180px,1fr));overflow:visible}.master-nav-group{min-width:0}}
@media(max-width:650px){.admin-sidebar nav{grid-template-columns:1fr}.master-nav-group-toggle{min-height:44px}}