body {
    margin: 0;
    padding: 0;
    font-family: Inter, system-ui;
    background: #000;
    overflow: hidden;
    color: var(--text);
}

/* CANVASES */
#starfield, #sparks {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: -10;
}

/* APP GRID */
#app {
    display: grid;
    grid-template-columns: 260px auto;
    grid-template-rows: 60px auto 60px;
    height: 100vh;
}

/* SIDEBAR */
#sidebar {
    grid-row: 1 / span 3;
    backdrop-filter: blur(18px);
    background: var(--glass-bg);
    border-right: 1px solid var(--glass-border);
    padding: 20px;
}

.sidebar-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 30px;
}

.sidebar-title {
    font-weight: 600;
    font-size: 18px;
}

.side-nav .nav-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 12px 16px;
    border-radius: var(--radius);
    margin-bottom: 6px;
    cursor: pointer;
    transition: 0.2s;
}

.side-nav .nav-item.active,
.side-nav .nav-item:hover {
    background: var(--glass-bg-strong);
    color: var(--accent);
}

/* TOPBAR */
#topbar {
    padding: 14px 22px;
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--glass-border);
}

/* VIEW */
#view {
    padding: 25px;
    overflow-y: auto;
}

/* MOBILE NAV */
#mobile-nav {
    display: none;
}

@media (max-width: 900px) {
    #app {
        grid-template-columns: 1fr;
    }
    #sidebar {
        display: none;
    }
    #mobile-nav {
        display: flex;
        justify-content: space-around;
        align-items: center;
        border-top: 1px solid var(--glass-border);
        backdrop-filter: blur(14px);
    }
}