/* Basic styles */
:root {
    --sidebar-width: 250px;
    --sidebar-bg: #fff;
    --sidebar-shadow: 0 6px 18px rgba(15, 20, 25, 0.05);
    --accent: #6f3b12;
    --active-bg: #fff5ed;
}

body {
    font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, 'Helvetica Neue', Arial;
    margin: 0;
    background-color: #f7fbfe;
}

.layout {
    display: flex;
    margin-left: var(--sidebar-width);
    min-height: 100vh;
}

.sidebar {
    width: var(--sidebar-width);
    height: 100vh;
    position: fixed;
    left: 0;
    top: 0;
    background: var(--sidebar-bg);
    box-shadow: var(--sidebar-shadow);
    padding: 28px;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    z-index: 100;
    transition: transform 0.3s ease;
}

.main-content {
    flex: 1;
    padding: 28px;
    box-sizing: border-box;
    transition: margin-left 0.3s ease;
}

/* Sidebar content */
.sidebar .brand {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 24px;
}

.sidebar .logo {
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, #6f3b12, #e7b08e);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 700;
    flex-shrink: 0;
}

.sidebar .menu {
    list-style: none;
    padding: 0;
    margin: 0;
}

.sidebar .menu > li {
    margin-bottom: 4px;
}

.sidebar .menu li a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-radius: 10px;
    color: #6b7280;
    text-decoration: none;
    margin-bottom: 4px;
    font-weight: 500;
}

.sidebar .menu-group {
    margin-bottom: 0;
}

.sidebar .menu-group-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    font-weight: 600;
    color: #374151;
    background: #f9fafb;
    border-radius: 10px;
    padding: 12px 16px;
    margin-bottom: 4px;
}

.sidebar .menu-group-header:hover {
    background: #f3f4f6;
}

.sidebar .menu-group-header .arrow {
    font-size: 10px;
    transition: transform 0.2s ease;
    margin-left: auto;
}

.sidebar .menu-group-items {
    list-style: none;
    padding: 0 0 0 16px;
    margin: 0;
    display: none;
}

.sidebar .menu-group-items li {
    margin-bottom: 2px;
}

.sidebar .menu-group-items li a {
    padding: 10px 16px;
    font-size: 14px;
    border-radius: 8px;
}

.sidebar .menu-group-items li.active a {
    background: var(--active-bg);
    color: var(--accent);
}

.sidebar .menu li.active a {
    background: var(--active-bg);
    color: var(--accent);
    box-shadow: inset 0 0 0 1px rgba(200, 150, 120, 0.08);
}

.sidebar .user-section {
    margin-top: auto;
    padding-top: 16px;
    border-top: 1px solid #f4f6f8;
}

/* Responsive */
@media (max-width: 768px) {
    .layout {
        flex-direction: column;
    }
    .sidebar {
        position: static;
        width: 100%;
        height: auto;
        transform: translateX(0);
        box-shadow: none;
        border-bottom: 1px solid #eee;
        padding: 16px;
    }
    .main-content {
        margin-left: 0;
    }
    .sidebar .menu {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
    }
    .sidebar .menu > li {
        flex-shrink: 0;
        margin-bottom: 0;
    }
    .sidebar .menu-group {
        position: relative;
    }
    .sidebar .menu-group-header {
        padding: 10px 12px;
        font-size: 14px;
    }
    .sidebar .menu-group-items {
        position: absolute;
        top: 100%;
        left: 0;
        background: white;
        border-radius: 10px;
        box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        padding: 8px;
        min-width: 180px;
        z-index: 10;
    }
    .sidebar .menu-group-items li a {
        padding: 8px 12px;
        font-size: 13px;
    }
}