:root {
    --isa-teal: #0097a0;
    --isa-teal-dark: #006b72;
    --isa-ink: #071b22;
    --isa-soft: #f4fbfa;
    --isa-card: rgba(255, 255, 255, .88);
    --isa-border: rgba(15, 23, 42, .10);
    --isa-shadow: 0 22px 70px rgba(15, 23, 42, .10);
    --isa-shadow-soft: 0 14px 36px rgba(15, 23, 42, .07);
    --isa-radius: 28px;
}

body.isa-command-center {
    background:
        radial-gradient(circle at top left, rgba(0, 151, 160, .12), transparent 34%),
        radial-gradient(circle at top right, rgba(245, 199, 107, .12), transparent 28%),
        linear-gradient(135deg, #f6fbfa 0%, #eef8f7 48%, #f9fbfc 100%) !important;
    color: #0f172a;
}

body.isa-command-center::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    background-image:
        linear-gradient(rgba(15, 23, 42, .025) 1px, transparent 1px),
        linear-gradient(90deg, rgba(15, 23, 42, .025) 1px, transparent 1px);
    background-size: 34px 34px;
    mask-image: linear-gradient(to bottom, rgba(0,0,0,.9), transparent 72%);
    z-index: 0;
}

body.isa-command-center .app,
body.isa-command-center .layout,
body.isa-command-center .main,
body.isa-command-center .main-content,
body.isa-command-center .content,
body.isa-command-center main {
    position: relative;
    z-index: 1;
}

.sidebar,
.app-sidebar,
.aside,
aside {
    background:
        radial-gradient(circle at top left, rgba(255,255,255,.12), transparent 26%),
        linear-gradient(180deg, #052f35 0%, #071b22 58%, #041216 100%) !important;
    border-right: 1px solid rgba(255, 255, 255, .08) !important;
    box-shadow: 22px 0 80px rgba(2, 6, 23, .22);
}

.sidebar-brand,
.brand,
.logo-area {
    border-bottom: 1px solid rgba(255,255,255,.08) !important;
}

.logo-img-wrap,
.logo-box {
    background: transparent !important;
    box-shadow: none !important;
}

.logo-img {
    object-fit: contain;
}

.brand-title {
    color: #ffffff !important;
    letter-spacing: -.02em;
}

.brand-role {
    color: rgba(255,255,255,.68) !important;
}

.nav-link,
.sidebar a {
    position: relative;
    border-radius: 18px !important;
    margin: 5px 10px !important;
    min-height: 44px;
    display: flex !important;
    align-items: center;
    gap: 10px;
    color: rgba(255,255,255,.78) !important;
    font-weight: 850 !important;
    letter-spacing: -.01em;
    transition: transform .18s ease, background .18s ease, color .18s ease, box-shadow .18s ease;
}

.nav-link:hover,
.sidebar a:hover {
    transform: translateX(4px);
    background: rgba(255,255,255,.10) !important;
    color: #ffffff !important;
}

.nav-link.active,
.sidebar a.active {
    color: #ffffff !important;
    background:
        linear-gradient(135deg, rgba(0,151,160,.92), rgba(0,107,114,.92)) !important;
    box-shadow: 0 12px 30px rgba(0,151,160,.28);
}

.nav-link.active::before,
.sidebar a.active::before {
    content: "";
    width: 5px;
    height: 24px;
    border-radius: 999px;
    background: #f5c76b;
    position: absolute;
    left: -7px;
    top: 50%;
    transform: translateY(-50%);
}

.isa-nav-group-label {
    margin: 18px 18px 8px;
    color: rgba(255,255,255,.48);
    font-size: 11px;
    font-weight: 1000;
    text-transform: uppercase;
    letter-spacing: .12em;
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    user-select: none;
}

.isa-nav-group-label::after {
    content: "⌄";
    font-size: 13px;
    opacity: .75;
}

.isa-nav-group-label.is-collapsed::after {
    content: "›";
}

.nav-link.isa-hidden-by-group {
    display: none !important;
}

.isa-command-topbar {
    position: sticky;
    top: 0;
    z-index: 50;
    margin: -4px 0 22px;
    padding: 14px;
    border-radius: 0 0 30px 30px;
    background: rgba(246, 251, 250, .82);
    border: 1px solid rgba(255,255,255,.72);
    box-shadow: 0 18px 54px rgba(15,23,42,.08);
    backdrop-filter: blur(18px);
}

.isa-command-topbar-inner {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 14px;
    align-items: center;
}

.isa-command-title {
    display: flex;
    align-items: center;
    gap: 13px;
    min-width: 0;
}

.isa-command-orb {
    width: 44px;
    height: 44px;
    border-radius: 18px;
    background:
        radial-gradient(circle at 30% 20%, rgba(255,255,255,.75), transparent 28%),
        linear-gradient(135deg, var(--isa-teal), var(--isa-teal-dark));
    box-shadow: 0 16px 34px rgba(0,151,160,.28);
    flex: 0 0 auto;
}

.isa-command-title strong {
    display: block;
    font-size: 18px;
    font-weight: 1000;
    color: #0f172a;
    line-height: 1.1;
}

.isa-command-title span {
    display: block;
    color: #64748b;
    font-size: 12px;
    font-weight: 850;
    margin-top: 4px;
}

.isa-command-actions {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 9px;
    flex-wrap: wrap;
}

.isa-live-pill,
.isa-command-btn {
    border: 1px solid rgba(15,23,42,.08);
    background: rgba(255,255,255,.78);
    color: #0f172a;
    border-radius: 999px;
    min-height: 42px;
    padding: 0 14px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-weight: 950;
    box-shadow: 0 10px 24px rgba(15,23,42,.06);
    text-decoration: none;
    cursor: pointer;
}

.isa-command-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 16px 32px rgba(15,23,42,.10);
}

.isa-command-btn.primary {
    color: #ffffff;
    background: linear-gradient(135deg, var(--isa-teal), var(--isa-teal-dark));
    border-color: transparent;
}

.isa-live-dot {
    width: 9px;
    height: 9px;
    border-radius: 99px;
    background: #16a34a;
    box-shadow: 0 0 0 6px rgba(22,163,74,.12);
}

.isa-live-dot.off {
    background: #dc2626;
    box-shadow: 0 0 0 6px rgba(220,38,38,.12);
}

.page-head {
    padding: 24px !important;
    background: rgba(255,255,255,.68);
    border: 1px solid rgba(255,255,255,.74);
    border-radius: var(--isa-radius);
    box-shadow: var(--isa-shadow-soft);
    backdrop-filter: blur(16px);
}

.page-title {
    font-size: clamp(28px, 3vw, 44px) !important;
    font-weight: 1000 !important;
    letter-spacing: -.045em;
    color: #0f172a !important;
}

.page-subtitle {
    color: #64748b !important;
    font-weight: 800 !important;
}

.studio-panel,
.card,
.panel,
.widget,
.library-card,
.playlist-card,
.schedule-card,
.monitor-card,
.device-card,
.permission-card,
.stat-card {
    border: 1px solid rgba(255,255,255,.72) !important;
    background: rgba(255,255,255,.78) !important;
    border-radius: var(--isa-radius) !important;
    box-shadow: var(--isa-shadow-soft) !important;
    backdrop-filter: blur(14px);
}

.studio-panel:hover,
.library-card:hover,
.playlist-card:hover,
.schedule-card:hover,
.monitor-card:hover,
.device-card:hover {
    box-shadow: var(--isa-shadow) !important;
}

.btn,
button.btn,
a.btn {
    border-radius: 999px !important;
    font-weight: 950 !important;
    min-height: 42px;
    transition: transform .16s ease, box-shadow .16s ease, background .16s ease;
}

.btn:hover,
button.btn:hover,
a.btn:hover {
    transform: translateY(-1px);
}

.btn:not(.btn-soft):not(.btn-danger) {
    background: linear-gradient(135deg, var(--isa-teal), var(--isa-teal-dark)) !important;
    border-color: transparent !important;
    color: #ffffff !important;
    box-shadow: 0 14px 34px rgba(0,151,160,.20);
}

.btn-soft {
    background: rgba(255,255,255,.72) !important;
    border: 1px solid rgba(15,23,42,.08) !important;
    color: #0f172a !important;
}

.btn-danger {
    background: linear-gradient(135deg, #ef4444, #b91c1c) !important;
    border-color: transparent !important;
    color: #ffffff !important;
}

input,
select,
textarea {
    border-radius: 18px !important;
    border: 1px solid rgba(15,23,42,.12) !important;
    background: rgba(255,255,255,.86) !important;
    box-shadow: inset 0 1px 0 rgba(255,255,255,.65);
    transition: box-shadow .16s ease, border-color .16s ease;
}

input:focus,
select:focus,
textarea:focus {
    outline: none !important;
    border-color: rgba(0,151,160,.55) !important;
    box-shadow: 0 0 0 5px rgba(0,151,160,.12) !important;
}

.field label,
label {
    color: #334155;
    font-weight: 950 !important;
}

.studio-chip,
.badge,
.status-badge {
    border-radius: 999px !important;
    font-weight: 1000 !important;
    letter-spacing: .03em;
}

.isa-command-palette {
    position: fixed;
    inset: 0;
    z-index: 99999;
    display: none;
    align-items: flex-start;
    justify-content: center;
    padding: 9vh 18px 18px;
    background: rgba(2, 6, 23, .46);
    backdrop-filter: blur(10px);
}

.isa-command-palette.open {
    display: flex;
}

.isa-command-box {
    width: min(720px, 96vw);
    background: rgba(255,255,255,.96);
    border: 1px solid rgba(255,255,255,.8);
    border-radius: 30px;
    box-shadow: 0 30px 120px rgba(2,6,23,.32);
    overflow: hidden;
}

.isa-command-search {
    padding: 18px;
    border-bottom: 1px solid rgba(15,23,42,.08);
}

.isa-command-search input {
    width: 100%;
    min-height: 54px;
    border-radius: 20px !important;
    font-size: 18px;
    font-weight: 900;
}

.isa-command-results {
    max-height: 55vh;
    overflow: auto;
    padding: 10px;
}

.isa-command-result {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    padding: 14px;
    border-radius: 18px;
    text-decoration: none;
    color: #0f172a;
    font-weight: 950;
}

.isa-command-result:hover,
.isa-command-result.active {
    background: #eef8f7;
}

.isa-command-result small {
    color: #64748b;
    font-weight: 800;
}

.isa-page-loading-bar {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    width: 0;
    background: linear-gradient(90deg, var(--isa-teal), #f5c76b);
    z-index: 100000;
    transition: width .25s ease, opacity .25s ease;
    opacity: 0;
}

body.isa-navigating .isa-page-loading-bar {
    width: 72%;
    opacity: 1;
}

body.isa-sidebar-collapsed .sidebar,
body.isa-sidebar-collapsed .app-sidebar,
body.isa-sidebar-collapsed aside {
    width: 92px !important;
}

body.isa-sidebar-collapsed .brand-title,
body.isa-sidebar-collapsed .brand-role,
body.isa-sidebar-collapsed .nav-link span,
body.isa-sidebar-collapsed .isa-nav-group-label {
    display: none !important;
}

@media (max-width: 920px) {
    .isa-command-topbar {
        position: relative;
        border-radius: 24px;
        margin-top: 0;
    }

    .isa-command-topbar-inner {
        grid-template-columns: 1fr;
    }

    .isa-command-actions {
        justify-content: flex-start;
    }

    .isa-command-btn.hide-mobile,
    .isa-live-pill.hide-mobile {
        display: none;
    }

    .page-head {
        padding: 18px !important;
    }
}