:root {
    --brown-dark: #4E342E;
    --brown: #5B3A1A;
    --brown-light: #A1887F;
    --gold: #D4AF37;
    --gold-light: #F7E9A0;
}

body {
    background: #f7f4f1;
    font-family: "Segoe UI", sans-serif;
}

/* Sidebar */
#sidebar {
    width: 250px;
    background: var(--brown-dark);
    height: 100vh;
    overflow-y: auto;
    position: fixed;
    top: 0;
    left: 0;
}
#sidebar .brand {
    text-align: center;
    padding: 20px 10px;
    background: var(--brown);
}
#sidebar .brand img {
    width: 70px;
}
#sidebar .brand h4 {
    color: var(--gold);
    font-weight: 700;
}
#sidebar a {
    color: #fff;
    text-decoration: none;
    display: block;
    padding: 12px 20px;
    border-bottom: 1px solid rgba(255,255,255,.05);
    transition: .3s;
}
#sidebar a:hover {
    background: var(--brown-light);
    padding-left: 35px;
}

/* Navbar */
.top-navbar {
    margin-left: 250px;
    background: #fff;
    border-bottom: 3px solid var(--gold);
    padding: 15px 20px;
}

/* Content */
.main-content {
    margin-left: 250px;
    padding: 20px;
}

/* Cards */
.kpi-card {
    border-left: 5px solid var(--gold);
    border-radius: 12px;
    box-shadow: 0 4px 10px rgba(0,0,0,.1);
}

/* Buttons */
.btn-gold {
    background: var(--gold);
    color: #000;
    font-weight: 600;
}
.btn-gold:hover {
    background: #b8952e;
}

/* Footer */
.main-footer {
    margin-left: 250px;
    padding: 10px;
    border-top: 2px solid var(--gold);
    background:#fff;
    text-align:center;
    color:var(--brown-dark);
}